CN216925722U - Agricultural plant protection unmanned aerial vehicle - Google Patents

Abstract

The embodiments of the utility model relate to the technical field of plant protection, in particular to an unmanned aerial vehicle for agricultural plant protection. The agricultural plant protection unmanned aerial vehicle includes: a body; a container, which is provided with a liquid storage cavity for accommodating liquid, and the container is detachably connected to the body; a liquid level gauge, which is movably connected to the body, and the level gauge is used for measuring The liquid level of a liquid; wherein the liquid level gauge is configured to be able to move between a measuring position and a non-measuring position; when the liquid level gauge is in the measuring position, the liquid level gauge is capable of measuring the liquid level in the liquid storage chamber; in When the level gauge is in the non-measuring position, the container can be removed from the body. The agricultural plant protection unmanned aerial vehicle in this embodiment uses a liquid level gauge to measure the liquid level, wherein the liquid level gauge is movably connected to the body, and when the container needs to be removed from the body, the level gauge is moved to The non-measurement position is sufficient, which can not only realize continuous liquid level measurement, but also improve the measurement accuracy.

Description

Agricultural plant protection unmanned aerial vehicle

technical field

The present application relates to the technical field of plant protection, in particular to an unmanned aerial vehicle for agricultural plant protection.

Background technique

With the gradual expansion of the application field of plant protection drones, the requirements for spraying accuracy are getting higher and higher, and functions such as residual dose detection, route planning, and drug-stopping battery life have become standard. The basic components of the current continuous level gauge are generally contact type.

However, the contact type liquid level gauge requires the liquid level gauge to penetrate at least partially below the liquid level, and such a contact type liquid level gauge may have a corrosion problem, thereby reducing the measurement accuracy of the liquid level gauge.

Utility model content

In order to solve any one of the above problems, embodiments of the present invention provide an unmanned aerial vehicle for agricultural plant protection.

An agricultural plant protection unmanned aerial vehicle according to an embodiment of the present utility model includes: a body; a container, wherein the container is provided with a liquid storage cavity for accommodating liquid, and the container is detachably connected to the body; a liquid level gauge, the liquid level gauge is movably connected In the body, the liquid level gauge is used to measure the liquid level of the liquid; wherein, the liquid level gauge is configured to be able to move between the measuring position and the non-measuring position; when the liquid level gauge is in the measuring position, the liquid level gauge can measure the liquid level. The liquid level in the cavity is measured; when the liquid level gauge is in the non-measurement position, the container can be removed from the body.

An agricultural plant protection unmanned aerial vehicle according to an embodiment of the present utility model includes: a body, the body is provided with a mounting position for accommodating a container, the container is used for containing liquid, and can be detachably disassembled into the mounting position; The level gauge includes a bracket movably connected to the body and a probe installed on the bracket, the probe is used to detect the liquid level of the liquid in the container; and a reset part, the reset part is mechanically coupled with the bracket, and the reset part is used to provide a restoring force Give the bracket, so that the bracket is automatically reset to the measurement position and/or the non-measurement position under the action of the restoring force; wherein, when the container is disassembled into the installation position, the container can abut the bracket, so that the bracket is pushed by the container to move to the non-measurement position. Measurement location and/or measurement location.

The agricultural plant protection unmanned aerial vehicle provided by this application uses a liquid level gauge to measure the liquid level, wherein the liquid level gauge is movably connected to the body, and when the container needs to be removed from the body, the level gauge is moved to a non- The measurement position is enough, which can not only realize continuous liquid level measurement, but also improve the measurement accuracy.

Additional aspects and advantages of embodiments of the present invention will be set forth, in part, in the following description, and in part will become apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

1 is a partial cross-sectional schematic diagram of a liquid level gauge of an agricultural plant protection unmanned aerial vehicle at a measurement position according to an embodiment of the present invention.

FIG. 2 is an enlarged view of part A of the agricultural plant protection unmanned aerial vehicle of FIG. 1 .

3 is a partial enlarged view of the liquid level gauge of the agricultural plant protection unmanned aerial vehicle in the non-measurement position according to the embodiment of the present invention.

4 is a schematic structural diagram of the liquid level gauge of the agricultural plant protection unmanned aerial vehicle at the measurement position according to the embodiment of the present invention.

FIG. 5 is a schematic structural diagram of the agricultural plant protection unmanned aerial vehicle of FIG. 4 in different view directions.

6 is a schematic structural diagram of the liquid level gauge of the agricultural plant protection unmanned aerial vehicle in a non-measurement position according to an embodiment of the present invention.

7 is a schematic structural diagram of the liquid level gauge of the agricultural plant protection unmanned aerial vehicle in the measuring position according to the embodiment of the present invention.

8 is a series of process diagrams of the movement of the liquid level gauge of the agricultural plant protection unmanned aerial vehicle between the measurement position and the non-measurement position according to another embodiment of the present invention.

FIG. 9 is a series of process diagrams of the movement of the liquid level gauge of the agricultural plant protection unmanned aerial vehicle between the measurement position and the non-measurement position according to other embodiments of the present invention.

10 is a partial cross-sectional schematic diagram of the liquid level gauge of the agricultural plant protection unmanned aerial vehicle located at the measurement position according to another embodiment of the present invention.

FIG. 11 is an enlarged view of part B of the agricultural plant protection unmanned aerial vehicle of FIG. 10 .

12 is a schematic structural diagram of the liquid level gauge of the agricultural plant protection unmanned aerial vehicle in the measuring position according to the embodiment of the present invention.

13 is a partial cross-sectional schematic diagram of the liquid level gauge of the agricultural plant protection unmanned aerial vehicle located at the measurement position according to another embodiment of the present invention.

Description of main component symbols:

10. Agricultural plant protection unmanned aerial vehicle; 20. Liquid level;

100, the body; 110, the receiving cavity; 120, the second wire hole;

200, container; 210, liquid storage chamber; 220, accommodating tank; 230, extrusion part;

300, level gauge;

310, bracket; 311, abutting part; 3111, guide part; 312, sliding part; 313, first horizontal rod; 314, first vertical rod; 315, swing part;

320, probe;

330, reset piece; 331, elastic piece;

400, limit component; 410, first limit part; 420, second limit part; 421, first wire hole;

500, rotating shaft.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

The following disclosure provides many different embodiments or examples for implementing different structures of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in various instances for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The top and bottom in the following embodiments are based on the orientation of the agricultural plant protection unmanned aerial vehicle 10 when it is in use.

FIG. 1 is a partial cross-sectional schematic diagram of the liquid level gauge 300 of the agricultural plant protection unmanned aerial vehicle 10 at the measurement position according to an embodiment of the present invention. FIG. 2 is an enlarged view of part A of the agricultural plant protection unmanned aerial vehicle 10 of FIG. 1 . 3 is a partial enlarged view of the liquid level gauge 300 of the agricultural plant protection unmanned aerial vehicle 10 in the non-measurement position according to the embodiment of the present invention. Referring to FIGS. 1 , 2 and 3 , the agricultural plant protection UAV 10 includes a body 100 , a container 200 and a liquid level gauge 300 . The container 200 is provided with a liquid storage chamber 210 for accommodating liquid, and the container 200 is detachably connected to the body 100 . The liquid level gauge 300 is movably connected to the body 100, and the liquid level gauge 300 is used for measuring the liquid level of the liquid. Wherein, the liquid level gauge 300 is configured to be able to move between the measurement position and the non-measurement position; when the liquid level gauge 300 is at the measurement position, the liquid level gauge 300 can measure the liquid level in the liquid storage chamber 210; When the position meter 300 is in the non-measurement position, the container 200 can be detached from the body 100 .

In some embodiments, the agricultural plant protection UAV 10 may be a plant protection drone, or a spraying device such as an unmanned vehicle.

It should be noted that the liquid level of the liquid is the height of the liquid surface 20 . The container 200 is configured to contain liquid, and the liquid level gauge 300 is used to measure the height of the liquid level 20 of the liquid to be measured in the liquid storage chamber 210. The height of the liquid level 20 can be measured in a non-contact manner. The detection method can be measured by using the principle that the detection signal will be reflected at the interface of different media, and the actual height of the liquid surface 20 can be measured by parameters such as reflection time and reflection angle, and then the amount of the remaining liquid to be measured in the liquid storage chamber 210 can be known. , the liquid level measurement obtained by the probe 320 using this principle has high precision and high reliability.

Further, the body 100 may be provided with an installation component, the installation component is provided with an installation groove, and the container 200 may be at least partially located in the installation groove.

Further, the liquid can be water, an aqueous solution or other solutions, which can be specifically selected according to the specific usage scenario of the agricultural plant protection unmanned aerial vehicle 10. For example, when the agricultural plant protection unmanned aerial vehicle 10 is a plant protection drone, the liquid can be pesticides.

Further, no matter when the liquid level gauge 300 is in the measurement position or the non-measurement position, the probe 320 will not be in direct contact with the liquid, which avoids the corrosion problem of the liquid level gauge 300 and prolongs the service life of the liquid level gauge 300 .

The agricultural plant protection unmanned aerial vehicle 10 in this embodiment uses the liquid level gauge 300 to realize the non-contact measurement of the liquid level, wherein the liquid level gauge 300 is movably connected to the body 100 , and when the container 200 needs to be disassembled from the body 100 When coming down, just move the liquid level gauge 300 to a non-measuring position, which can not only realize continuous liquid level measurement, but also solve the corrosive problem of the contact type liquid level gauge 300 and improve the measurement accuracy.

FIG. 4 is a schematic structural diagram of the liquid level gauge 300 of the agricultural plant protection unmanned aerial vehicle 10 at the measurement position according to the embodiment of the present invention. FIG. 5 is a schematic structural diagram of the agricultural plant protection unmanned aerial vehicle 10 of FIG. 4 in different view directions. Referring to FIGS. 4 and 5 , when the liquid level gauge 300 is located at the measuring position, the separation direction of the container 200 and the body 100 is blocked by the liquid level gauge 300 . When the liquid level gauge 300 is located at the non-measurement position, the liquid level gauge 300 deviates from the separation direction of the container 200 and the body 100 , so that the container 200 can be freely separated from the body 100 .

Understandably, the separation direction of the container 200 and the body 100 is blocked by the liquid level gauge 300 . That is, when the liquid level gauge 300 is located at the measuring position, the container 200 and the body 100 cannot be disassembled due to the blocking of the liquid level gauge 300 .

Referring to FIG. 2 , the liquid level gauge 300 includes a bracket 310 and a probe 320 . The bracket 310 is movably connected to the body 100 . The probe 320 is installed on the bracket 310, and the probe 320 is used to measure the liquid level of the liquid.

Further, the probe 320 can be used to transmit a detection signal to the liquid, the detection signal can transmit through the container 200 and shoot towards the liquid, the detection signal is reflected after encountering the liquid level 20 of the liquid, and the probe 320 can be placed in the path after the reflection of the detection signal. Therefore, the probe 320 can receive the reflected detection signal, and then the liquid level of the liquid can be obtained by detecting the reflected distance of the detection signal. The liquid level measurement obtained by the probe 320 using this principle has high precision and high reliability.

Further, the material of the container 200 is at least partially set as a wave-transmitting material, which can transmit the detection signal, wherein the wave-transmitting material refers to a material that can transmit electromagnetic waves and hardly change the properties (including energy) of electromagnetic waves. The setting of the wave-transmitting material can reduce the loss of the detection signal on the propagation path, improve the measurement accuracy, and ensure that the results obtained by the liquid level meter 300 are accurate and reliable.

In some embodiments, the portion of the container 200 opposite the probe 320 is made of a wave-transmitting material. The relative here refers to the relative position, that is, the container 200 and the probe 320 are arranged at least partially facing each other.

It should be noted that the liquid surface 20 of the liquid is the interface between the liquid and the air, and has the effect of reflecting the detection signal. After the detection signal is reflected by the liquid surface 20, the reflected detection signal will transmit through the container 200 and be received by the probe 320. , and then complete the detection of the height of the liquid level 20 .

In some embodiments, the probe 320 may be positioned on the level 20 of the liquid.

The liquid level meter 300 is used to transmit detection signals to the liquid level to detect the liquid level of the liquid, and the detection signals include one or more of the following: acoustic wave signals, radar signals and laser signals.

Further, the probe 320 can detect the liquid level by using a sound wave signal, a radar signal or a laser signal, or a combination of the above three.

Referring to FIG. 2 , the liquid level gauge 300 further includes a reset member 330 . The restoring member 330 is mechanically coupled with the bracket 310, and the restoring member 330 is used for providing a restoring force to the supporting frame 310, so that the supporting member 310 is restored to the measurement position and/or the non-measurement position under the action of the restoring force.

Further, the connection between the reset member 330 and the bracket 310 may be a fixed connection, a detachable connection, abutment, overlap or splicing.

Referring to FIG. 1 to FIG. 7 , in some embodiments, the bracket 310 is slidably connected with respect to the body 100 , and the body 100 defines a receiving cavity 110 for at least partially receiving the bracket 310 . Wherein, when the liquid level gauge 300 is located at the measuring position, at least part of the bracket 310 can slide out from the receiving cavity 110, and can drive the probe 320 to move until the probe 320 moves above the top of the container 200; When measuring the position, the container 200 can drive the bracket 310 to slide, so that the bracket 310 moves into the receiving cavity 110 , and the probe 320 is located on one side of the container 200 .

Further, when the liquid level gauge 300 is located at the measuring position, the probe 320 is moved to the top of the container 200. This arrangement makes the coverage area of the probe 320 become an acceptable area after the detection signal is reflected, so as to ensure that the number of probes 320 is relatively small. Less liquid level gauge 300 will not appear dead zone. In some embodiments, at least one liquid level gauge 300 may be provided in order to improve measurement accuracy.

Further, when the liquid level gauge 300 is in the non-measurement position, the container 200 can drive the bracket 310 to slide, which can be understood as the container 200 exerting force on the bracket 310 to move the bracket 310 into the receiving cavity 110 .

Further, the probe 320 is located on one side of the container 200 , which means that the probe 320 avoids the separation path of the container 200 and the body 100 .

6 is a schematic structural diagram of the liquid level gauge 300 of the agricultural plant protection unmanned aerial vehicle 10 in the non-measurement position according to the embodiment of the present invention. Referring to FIG. 6 , the container 200 is provided with an accommodating groove 220 for accommodating the probe 320 at least partially. Wherein, when the liquid level gauge 300 is at the measuring position, the probe 320 is at least partially accommodated in the accommodating groove 220, so that the separation direction of the container 200 and the body 100 is blocked by the probe 320; when the liquid level gauge 300 is at the non-measuring position, The probe 320 is located outside the accommodating groove 220 so that the container 200 can be freely separated from the body 100 .

In some embodiments, the accommodating groove 220 may be configured to form a U-shaped cavity with an opening facing the accommodating cavity 110 , and at least part of the probe 320 can enter the U-shaped cavity through the opening or leave the opening from the U-shaped cavity. In other embodiments, the accommodating groove 220 may be configured as an L-shaped cavity with an opening facing the accommodating cavity 110 and an opening facing the separation direction of the container 200 , and at least part of the probe 320 can enter the L-shaped cavity through the opening toward the accommodating cavity 110 . The cavity either exits the opening from the L-shaped cavity.

Further, the position of the accommodating groove 220 on the container 200 is higher than the liquid level 20, so that the liquid level gauge 300 can work normally. In order to improve the usable space of the container 200 , the accommodating groove 220 may be opened at the top of the container 200 .

Referring to FIG. 2 and FIG. 3 , the reset member 330 includes an elastic member 331 . The elastic member 331 is in contact with the bracket 310 , and the elastic member 331 is used to provide a restoring force to the bracket 310 , so that the bracket 310 slides out of the receiving cavity 110 under the action of the elastic member 331 until the bracket 310 returns to the measurement position.

Referring to FIGS. 2 and 3 , the body 100 is provided with a receiving cavity 110 for at least partially receiving the bracket 310 . The bracket 310 includes an abutment portion 311 and a sliding portion 312 for mechanical coupling with the abutment portion 311 . The probe 320 is connected to the abutting portion 311 , and the abutting portion 311 can slide along a preset direction along with the sliding portion 312 . The reset member 330 includes an elastic member 331 . The elastic member 331 is accommodated in the accommodating cavity 110 , and the elastic member 331 is in contact with the sliding portion 312 of the abutting portion 311 , and the elastic member 331 is used to provide a restoring force to the abutting portion 311 . The sliding portion 312 can drive at least part of the abutting portion 311 to slide out from the receiving cavity 110 under the action of the elastic member 331 until the abutting portion 311 is reset to the measurement position.

7 is a schematic structural diagram of the liquid level gauge 300 of the agricultural plant protection unmanned aerial vehicle 10 in the measurement position according to the embodiment of the present invention. Referring to FIG. 7 , one of the container 200 and the abutting portion 311 is provided with a guide portion 3111 , and the other is provided with a pressing portion 230 , and the pressing portion 230 can slide freely along the guiding portion 3111 . When the container 200 is separated from the body 100 , the pressing part 230 abuts the guide part 3111 , the container 200 can drive the abutting part 311 to slide into the receiving cavity 110 , so that the bracket 310 moves into the receiving cavity 110 , and the probe 320 is located in the receiving cavity 110 . one side of the container 200.

Referring to FIG. 7 , the guide portion 3111 is provided on the free end of the abutting portion 311 . And/or the pressing part 230 is provided at the corner of the top of the container 200 .

Referring to FIG. 7 , at least one of the guide portion 3111 and the pressing portion 230 is an arc-shaped convex surface, or an inclined plane inclined with respect to the sliding direction of the sliding portion 312 .

Further, the guide portion 3111 and/or the pressing portion 230 are configured as arc-shaped convex surfaces or as inclined planes to improve the smoothness of separation or disassembly of the container 200 from the body 100 , reduce the blocking feeling, and increase the size of the container 200 The pressure exerted on the abutment portion 311 .

In the first embodiment, referring to FIG. 1 to FIG. 3 , the agricultural plant protection UAV 10 includes a body 100 , a container 200 , a liquid level gauge 300 and an elastic member 331 , the liquid level gauge 300 includes a bracket 310 and a probe 320 , and the bracket 310 includes Abutting portion 311 and sliding portion 312 . The abutting portion 311 is configured as a semi-cylindrical shell, the radial direction of the semi-cylindrical shape is parallel to the deformation direction of the elastic member 331, the axial direction of the semi-cylindrical shape is perpendicular to the direction in which the container 200 is separated from the body 100, and the semi-cylindrical shell is The opening direction of the body faces the receiving cavity 110 . The sliding portion 312 is provided as a plate-shaped casing extending from the opening of the abutting portion 311 toward the accommodating cavity 110 . The accommodating groove 220 is configured as an L-shaped groove, and the abutting portion 311 and/or part of the sliding portion 312 are located in the accommodating groove 220 .

When the container 200 is separated from the body 100 upward, the pressing part 230 disposed on the upper part of the container 200 exerts a force on the guide part 3111, so that the abutting part 311 follows the sliding part 312 and slides out of the accommodating groove 220. When the bracket 310 When completely sliding out of the accommodating slot 220 and at least partially moved into the accommodating cavity 110 , the outer side wall of the container 200 exerts a force on the abutting portion 311 . Since the bracket 310 and the probe 320 avoid the disassembly path of the container 200 , the container 200 can be separated from the body 100 smoothly. After the container 200 is separated from the body 100 , the force exerted on the abutting portion 311 disappears, and the sliding portion 312 is returned to the measurement position under the action of the elastic member 331 .

When the container 200 is installed downward on the body 100, the pressing part 230 disposed at the lower part of the container 200 exerts a force on the guide part 3111, so that the abutting part 311 follows the sliding part 312 and moves into the receiving cavity 110 until the liquid level gauge 300 is located in the non-measurement position. Since the bracket 310 and the probe 320 avoid the installation path of the container 200, the container 200 can be smoothly loaded into the body 100. The connecting portion 311 and/or part of the sliding portion 312 are reset to the accommodating groove 220 under the action of the elastic member 331, and the liquid level gauge 300 is at the measuring position at this time.

Referring to FIGS. 2 and 3 , the agricultural plant protection UAV 10 includes a first limiting portion 410 . The first limiting portion 410 is disposed on the bracket 310 . The first limiting portion 410 is mechanically coupled with one end of the elastic member 331 to prevent the elastic member 331 from being separated from the bracket 310 .

Further, the first limiting portion 410 can be configured as a columnar structure extending from the inner wall of the abutting portion 311 to the elastic member 331 . The first limiting portion 410 can not only be used to prevent the elastic member 331 from separating from the bracket 310 , but also To limit the deformation direction and range of the elastic member 331 .

Referring to FIGS. 2 and 3 , the agricultural plant protection UAV 10 further includes a second limiting portion 420 . The second limiting portion 420 is disposed in the cavity formed by the accommodating cavity 110 . The second limiting portion 420 is mechanically coupled with the other end of the elastic member 331 . The second limiting portion 420 is used to prevent the elastic member 331 from being connected to the inner wall of the accommodating cavity 110 . separation.

Further, the second limiting portion 420 may be configured as a columnar structure extending from the inner wall of the receiving cavity 110 to the elastic member 331 . The second limiting portion 420 is used to prevent the elastic member 331 from separating from the inner wall of the receiving cavity 110 , and is also used to limit the deformation direction and range of the elastic member 331 to limit the position of the other end of the elastic member 331 .

Referring to FIGS. 2 and 3 , both ends of the elastic member 331 in the telescopic direction are respectively disposed on the first limiting portion 410 and/or the second limiting portion 420 .

Further, the axes of the first limiting portion 410 and the second limiting portion 420 are coaxial.

Referring to FIGS. 2 and 3 , the second limiting portion 420 is connected to the body 100 , the second limiting portion 420 is provided with a first wire hole 421 , and the body 100 is provided with a second wire hole 421 communicating with the first wire hole 421 . Through the wire hole 120 , the wire of the probe 320 can be connected to the power source through the first wire hole 421 and the second wire hole 120 .

Further, after the probe 320 is connected to the main control board of the agricultural plant protection unmanned aerial vehicle 10 through a wire, power supply and communication can be realized through the wire, so that the signal transmission is more stable and reliable. The problem of wireless power-on and transmission of the contact level gauge 300 is solved.

The elastic member 331 is sleeved on the first limiting portion 410 and/or the second limiting portion 420 .

Further, the first limiting portion 410 may be configured as a protrusion extending from the inner wall of the abutting portion 311 toward the receiving cavity 110 , and may be a cylindrical protrusion. The second limiting portion 420 may be configured as a protrusion extending from the inner wall of the receiving cavity 110 to the first limiting portion 410 , and may be a cylindrical protrusion. The elastic member 331 is configured as a spring, and both ends of the spring are respectively sleeved on the first limiting portion 410 and the second limiting portion 420 to position the spring and limit the direction of deformation of the spring. This arrangement makes it easy to disassemble the liquid level gauge 300 and replace the elastic member 331 .

The elastic member 331 is fixedly connected to the first limiting portion 410 and/or the second limiting portion 420 .

Further, both ends of the elastic member 331 may be fixedly connected to the first limiting portion 410 and/or the second limiting portion 420 by welding, or bonding, or other connecting members, respectively. This connection method makes the connection of the elastic member 331 reliable.

In some embodiments, one end of the elastic member 331 can also be sleeved on the first limiting portion 410 or the second limiting portion 420 , and the other end is fixedly connected to the second limiting portion 420 or the first limiting portion 410 .

Two ends of the elastic member 331 in the telescopic direction are respectively fixedly connected to the inner wall surface of the cavity formed by the bracket 310 and the receiving cavity 110 .

Further, both ends of the elastic member 331 are respectively connected with the inner wall surface of the bracket 310 and/or the inner wall surface of the receiving cavity 110 .

Referring to FIGS. 8 to 13 , in other embodiments, the bracket 310 is rotatably connected relative to the body 100 . The bracket 310 can rotate in the first direction and drive the probe 320 to move until the probe 320 moves above the top of the container 200 and is located at the measurement position; the container 200 can rotate in the opposite direction of the first direction and drive the bracket 310 to rotate to The probe 320 is placed on the side of the container 200, in the non-measurement position.

Further, when the liquid level gauge 300 is located at the measuring position, the probe 320 is moved to the top of the container 200. This arrangement makes the coverage area of the probe 320 become an acceptable area after the detection signal is reflected, so as to ensure that the number of probes 320 is relatively small. Less liquid level gauge 300 will not appear dead zone. In some embodiments, at least one liquid level gauge 300 may be provided in order to improve measurement accuracy.

Further, the container 200 can drive the bracket 310 to rotate, which can be understood as the container 200 exerting a force on the bracket 310 , so that the bracket 310 is rotated into the receiving cavity 110 .

Further, the probe 320 is located on one side of the container 200 , which means that the probe 320 avoids the separation path of the container 200 and the body 100 .

Referring to FIGS. 8 to 13 , the agricultural plant protection UAV 10 further includes a rotating shaft 500 . The bracket 310 is rotatably connected to the body 100 through the rotating shaft 500 . The reset member 330 includes an elastic member 331 mechanically coupled with the bracket 310 , and under the elastic force of the elastic member 331 , the bracket 310 can be automatically reset to the non-measurement position.

FIG. 8 is a series process diagram of the movement of the liquid level gauge 300 of the agricultural plant protection unmanned aerial vehicle 10 between the measurement position and the non-measurement position according to another embodiment of the present invention. FIG. 9 is a series of process diagrams in which the liquid level gauge 300 of the agricultural plant protection unmanned aerial vehicle 10 moves between the measurement position and the non-measurement position according to other embodiments of the present invention. Referring to FIGS. 8 and 9 , when the container 200 is separated from the body 100 , the rotation direction of the rotating shaft 500 is configured to be counterclockwise. When the container 200 and the body 100 are loaded, the rotation direction of the rotating shaft 500 is arranged in a clockwise direction.

8, when the container 200 is gradually separated from the body 100, the level gauge 300 gradually moves from the measuring position to the non-measuring position. During this process, the rotation direction of the rotating shaft 500 is counterclockwise; when the container 200 and the body 100 are gradually installed When entering, the liquid level gauge 300 gradually moves from the non-measurement position to the measurement position. During this process, the rotation direction of the rotating shaft 500 is clockwise.

9, when the container 200 is gradually separated from the body 100, the level gauge 300 gradually moves from the measuring position to the non-measuring position. During this process, the rotation direction of the rotating shaft 500 is counterclockwise; when the container 200 and the body 100 are gradually installed When entering, the liquid level gauge 300 gradually moves from the non-measurement position to the measurement position. During this process, the rotation direction of the rotating shaft 500 is clockwise.

Referring to FIGS. 8 and 9 , the body 100 is provided with a receiving cavity 110 for at least partially receiving the bracket 310 . The bracket 310 includes a first transverse rod 313 and a first longitudinal rod 314 . The probe 320 is connected to the first cross bar 313 . The elastic member 331 is used to provide restoring force to the first longitudinal rod 314 , the first longitudinal rod 314 is rotatably connected to the body 100 through the rotating shaft 500 , the first longitudinal rod 314 is fixedly connected to the first transverse rod 313 , and the first transverse rod 313 And the first longitudinal rod 314 is formed into an L-shaped structure with the opening facing the container 200 . The first vertical rod 314 can drive the first horizontal rod 313 to rotate out of the receiving cavity 110 until the probe 320 rotates to the top of the container 200 and is located at the measuring position; the container 200 can drive the first horizontal rod 313 to the receiving cavity 110 The probe 320 is located on one side of the container 200 and is located in the non-measurement position.

Referring to FIG. 8 , when the liquid level gauge 300 is at the measuring position, the elastic member 331 is in a compressed state, and the elastic member 331 is located below the rotating shaft 500 .

In the second embodiment, the agricultural plant protection unmanned aerial vehicle 10 includes a body 100, a container 200, a level gauge 300 and an elastic member 331. The level gauge 300 includes a bracket 310 and a probe 320, and the bracket 310 includes a first cross bar 313 and a The first longitudinal rod 314, wherein the first transverse rod 313 and the first longitudinal rod 314 can both be arranged in a column shape or a plate shape. The probe 320 is connected to the first cross bar 313 . The elastic member 331 is used to provide restoring force to the first longitudinal rod 314 , the first longitudinal rod 314 is rotatably connected to the body 100 through the rotating shaft 500 , the first longitudinal rod 314 is fixedly connected to the first transverse rod 313 , and the first transverse rod 313 And the first longitudinal rod 314 is formed into an L-shaped structure with the opening facing the container 200 .

When the container 200 is upwardly separated from the body 100 , the top wall of the container 200 exerts a force on the first horizontal bar 313 , so that the first horizontal bar 313 drives the first vertical bar 314 to rotate around the rotation axis 500 until the probe 320 is located at the position of the container 200 . When it is on one side, the outer side wall of the container 200 exerts a force on the first cross bar 313 . Since the bracket 310 and the probe 320 avoid the disassembly path of the container 200 , the container 200 can be separated from the body 100 smoothly. After the container 200 is separated from the body 100 , the elastic member 331 changes from the compressed state to the normal state, and the bracket 310 is reset to the non-measurement position under the action of the elastic member 331 .

When the container 200 is installed downward on the body 100 , the bottom wall of the container 200 exerts a force on the first longitudinal rod 314 , so that the first longitudinal rod 314 drives the first transverse rod 313 to rotate around the rotation axis 500 until the probe 320 is located in the container 200 above the top. Since the bracket 310 and the probe 320 avoid the installation path of the container 200, the container 200 can be smoothly loaded into the body 100. During this process, the outer wall of the container 200 exerts a force on the first longitudinal rod 314 until the liquid level gauge 300 is in the measuring position. Location.

Referring to FIG. 9 , when the liquid level gauge 300 is at the measuring position, the elastic member 331 is in a stretched state, and the elastic member 331 is located above the rotating shaft 500 .

In the third embodiment, the agricultural plant protection unmanned aerial vehicle 10 includes a body 100, a container 200, a liquid level gauge 300 and an elastic member 331. The liquid level gauge 300 includes a bracket 310 and a probe 320, and the bracket 310 includes a first cross bar 313 and The first longitudinal rod 314, wherein the first transverse rod 313 and the first longitudinal rod 314 can both be arranged in a column shape or a plate shape. The probe 320 is connected to the first cross bar 313 . The elastic member 331 is used to provide restoring force to the first longitudinal rod 314 , the first longitudinal rod 314 is rotatably connected to the body 100 through the rotating shaft 500 , the first longitudinal rod 314 is fixedly connected to the first transverse rod 313 , and the first transverse rod 313 And the first longitudinal rod 314 is formed into an L-shaped structure with the opening facing the container 200 .

When the container 200 is upwardly separated from the body 100 , the top wall of the container 200 exerts a force on the first horizontal bar 313 , so that the first horizontal bar 313 drives the first vertical bar 314 to rotate around the rotation axis 500 until the probe 320 is located at the position of the container 200 . When it is on one side, the outer side wall of the container 200 exerts a force on the first cross bar 313 . Since the bracket 310 and the probe 320 avoid the disassembly path of the container 200 , the container 200 can be separated from the body 100 smoothly. After the container 200 is separated from the body 100 , the elastic member 331 changes from a stretched state to a normal state, and the bracket 310 returns to the non-measurement position under the action of the elastic member 331 .

When the container 200 is installed downward on the body 100 , the bottom wall of the container 200 exerts a force on the first longitudinal rod 314 , so that the first longitudinal rod 314 drives the first transverse rod 313 to rotate around the rotation axis 500 until the probe 320 is located in the container 200 above the top. Since the bracket 310 and the probe 320 avoid the installation path of the container 200, the container 200 can be smoothly loaded into the body 100. During this process, the outer wall of the container 200 exerts a force on the first longitudinal rod 314 until the liquid level gauge 300 is in the measuring position. Location.

10 is a partial cross-sectional schematic diagram of the liquid level gauge 300 of the agricultural plant protection unmanned aerial vehicle 10 located at the measurement position according to another embodiment of the present invention. FIG. 11 is an enlarged view of part B of the agricultural plant protection unmanned aerial vehicle 10 of FIG. 10 . Referring to FIG. 10 and FIG. 11 , the agricultural plant protection UAV 10 further includes a rotating shaft 500 . The bracket 310 is rotatably connected to the body 100 through the rotating shaft 500 . The reset member 330 includes an elastic member 331 mechanically coupled with the bracket 310 , and under the elastic force of the elastic member 331 , the bracket 310 can automatically reset to the measurement position.

Referring to FIGS. 10 to 13 , when the container 200 is separated from the body 100 , the rotation direction of the rotating shaft 500 is configured as the first movement direction. When the container 200 is loaded into the body 100, the rotation direction of the rotating shaft 500 is configured as the second movement direction. Wherein, the first movement direction and the second movement direction are arranged in the same direction.

Referring to FIG. 10 , when the container 200 is gradually separated from the body 100, the level gauge 300 gradually moves from the measuring position to the non-measuring position. During this process, the rotation direction of the rotating shaft 500 is clockwise; when the container 200 and the body 100 are gradually installed When entering, the liquid level gauge 300 gradually moves from the non-measurement position to the measurement position. During this process, the rotation direction of the rotating shaft 500 is clockwise.

13, when the container 200 is gradually separated from the body 100, the level gauge 300 gradually moves from the measuring position to the non-measuring position. During this process, the rotation direction of the rotating shaft 500 is counterclockwise; when the container 200 and the body 100 are gradually installed When entering, the liquid level gauge 300 gradually moves from the non-measurement position to the measurement position. During this process, the rotation direction of the rotating shaft 500 is counterclockwise.

Referring to FIG. 10 and FIG. 11 , the body 100 is provided with a receiving cavity 110 for at least partially receiving the bracket 310 . The bracket 310 includes a contact portion 311 and a swing portion 315 . The probe 320 is connected to the contact portion 311 . One end of the swinging portion 315 is connected to the rotating shaft 500 , and the other end of the swinging portion 315 is connected to the contact portion 311 . It is used to provide restoring force to the swing portion 315 . The swinging portion 315 can drive at least part of the abutting portion 311 to rotate out of the receiving cavity 110 under the action of the elastic member 331 until the abutting portion 311 is reset to the measuring position; the container 200 can drive the abutting portion 311 to the receiving cavity 110 The abutting part 311 and the swinging part 315 are rotated into the receiving cavity 110, and the probe 320 is located on one side of the container 200 and is located in the non-measurement position.

12 is a schematic structural diagram of the liquid level gauge 300 of the agricultural plant protection unmanned aerial vehicle 10 in the measurement position according to the embodiment of the present invention. Referring to FIG. 12 , one of the container 200 and the abutting portion 311 is provided with a guide portion 3111 , and the other is provided with a pressing portion 230 , and the pressing portion 230 can slide freely along the guiding portion 3111 . When the container 200 is separated from the body 100 , the pressing part 230 abuts the guide part 3111 , the container 200 can drive the abutting part 311 to slide into the receiving cavity 110 , so that the bracket 310 moves into the receiving cavity 110 , and the probe 320 is located in the receiving cavity 110 . one side of the container 200.

Referring to FIG. 12 , the guide portion 3111 is provided on the free end of the abutting portion 311 . And/or the pressing part 230 is provided at the corner of the top of the container 200 .

Referring to FIG. 12 , at least one of the guide portion 3111 and the pressing portion 230 is an arc-shaped convex surface, or an inclined plane inclined with respect to the rotation direction of the swinging portion 315 .

Further, the guide portion 3111 and/or the pressing portion 230 are configured as arc-shaped convex surfaces or as inclined planes to improve the smoothness of separation or disassembly of the container 200 from the body 100 , reduce the blocking feeling, and increase the size of the container 200 The pressure exerted on the abutment portion 311 .

In the fourth embodiment, referring to FIGS. 10 and 11 , the unmanned aerial vehicle 10 for agricultural plant protection includes a body 100 , a container 200 , a liquid level gauge 300 and an elastic member 331 , the liquid level gauge 300 includes a bracket 310 and a probe 320 , and the bracket includes The contact part 311 and the swing part 315 . The abutting portion 311 is arranged to include a semi-cylindrical shell, the radial direction of the semi-cylindrical is parallel to the deformation direction of the elastic member 331, the axial direction of the semi-cylindrical is perpendicular to the direction in which the container 200 is separated from the body 100, and the semi-cylindrical The opening direction of the casing is toward the receiving cavity 110 . The abutting portion 311 is configured to further include a plate-shaped casing extending from the opening of the semi-cylindrical casing to the accommodating cavity 110 . The accommodating groove 220 is configured as an L-shaped groove, and at least part of the abutting portion 311 is located in the accommodating groove 220 .

When the container 200 is upwardly separated from the body 100 , the pressing part 230 disposed on the upper part of the container 200 exerts a force on the guide part 3111 , so that the abutting part 311 moves out of the accommodating groove 220 and drives the swing part 315 to rotate around the rotating shaft 500 Clockwise rotation, when the bracket 310 is completely moved out of the accommodating slot 220 and is located on one side of the container 200 , the outer side wall of the container 200 exerts a force on the abutting portion 311 . Since the bracket 310 and the probe 320 avoid the disassembly path of the container 200 , the container 200 can be separated from the body 100 smoothly. After the container 200 is separated from the body 100 , the force exerted on the abutting part 311 disappears, and the swinging part 315 returns to the measurement position with the abutting part 311 under the action of the elastic member 331 .

When the container 200 is installed downward on the body 100, the pressing part 230 disposed at the lower part of the container 200 exerts a force on the guide part 3111, so that the abutting part 311 rotates clockwise into the receiving cavity 110 until the liquid level gauge 300 is located in the In the non-measurement position, since the bracket 310 and the probe 320 avoid the installation path of the container 200, the container 200 can be smoothly loaded into the body 100. During this process, the outer side wall of the container 200 exerts a force on the abutting part 311 until the swing is elastic. Under the action of the component 331, the abutting portion 311 is reset to the accommodating tank 220, and the liquid level gauge 300 is at the measuring position at this time.

In the fifth embodiment, referring to FIG. 13 , the agricultural plant protection UAV 10 includes a body 100 , a container 200 , a level gauge 300 and an elastic member 331 , the level gauge 300 includes a bracket 310 and a probe 320 , and the bracket includes an abutting portion 311 and swing part 315. The abutting portion 311 is arranged to include a semi-cylindrical shell, the radial direction of the semi-cylindrical is parallel to the deformation direction of the elastic member 331, the axial direction of the semi-cylindrical is perpendicular to the direction in which the container 200 is separated from the body 100, and the semi-cylindrical The opening direction of the casing is toward the receiving cavity 110 . The abutting portion 311 is configured to further include a plate-shaped casing extending from the opening of the semi-cylindrical casing to the accommodating cavity 110 . The accommodating groove 220 is configured as an L-shaped groove, and at least part of the abutting portion 311 is located in the accommodating groove 220 .

When the container 200 is upwardly separated from the body 100 , the pressing part 230 disposed on the upper part of the container 200 exerts a force on the guide part 3111 , so that the abutting part 311 moves out of the accommodating groove 220 and drives the swing part 315 to reversely rotate around the rotating shaft 500 Clockwise rotation, when the bracket 310 is completely moved out of the accommodating slot 220 and is located on one side of the container 200 , the outer side wall of the container 200 exerts a force on the abutting portion 311 . Since the bracket 310 and the probe 320 avoid the disassembly path of the container 200 , the container 200 can be separated from the body 100 smoothly. After the container 200 is separated from the body 100 , the force exerted on the abutting part 311 disappears, and the swinging part 315 returns to the measurement position with the abutting part 311 under the action of the elastic member 331 .

When the container 200 is installed downward on the body 100 , the pressing part 230 disposed at the lower part of the container 200 exerts a force on the guide part 3111 , so that the abutting part 311 rotates counterclockwise into the accommodating cavity 110 until the liquid level gauge 300 is located in the In the non-measurement position, since the bracket 310 and the probe 320 avoid the installation path of the container 200, the container 200 can be smoothly loaded into the body 100. During this process, the outer side wall of the container 200 exerts a force on the abutting part 311 until the swing is elastic. Under the action of the component 331, the abutting portion 311 is reset to the accommodating tank 220, and the liquid level gauge 300 is at the measuring position at this time.

Referring to FIG. 12 , when the liquid level gauge 300 is located at the measuring position, the elastic member 331 is located above the rotating shaft 500 . Or, FIG. 13 is a partial cross-sectional schematic diagram of the liquid level gauge 300 of the agricultural plant protection unmanned aerial vehicle 10 located at the measurement position according to another embodiment of the present invention. Referring to FIG. 13 , when the liquid level gauge 300 is located at the measuring position, the elastic member 331 is located below the rotating shaft 500 .

Referring to FIG. 2 , FIG. 3 and FIG. 11 , the agricultural plant protection UAV 10 further includes a limiting assembly 400 . The limiting component 400 is disposed in the space formed by the bracket 310 and/or the receiving cavity 110 , and the limiting component 400 is used to limit the movement range of the elastic member 331 along the deformation direction.

The restoring member 330 is configured as one or more of the following: a torsion spring, a compression spring, and a tension spring.

Referring to FIG. 1 , the container 200 is configured in a box-like structure having an opening, and the opening faces a direction in which the container 200 is separated from the body 100 .

Further, the container 200 may also be provided with a cover located at the opening, so that the container 200 can be opened and closed through the movement of the cover.

Referring to FIG. 1 , the agricultural plant protection UAV 10 includes a body 100 , a liquid level gauge 300 and a reset member 330 . The body 100 is provided with an installation position for accommodating a container 200, the container 200 is used for containing liquid, and can be detachably disassembled into the installation position. The liquid level gauge 300 includes a bracket 310 movably connected to the body 100 and a probe 320 mounted on the bracket 310 , and the probe 320 is used to detect the liquid level of the liquid in the container 200 . The restoring member 330 is mechanically coupled with the bracket 310, and the restoring member 330 is used to provide a restoring force to the supporting frame 310, so that the supporting member 310 is automatically restored to the measurement position and/or the non-measurement position under the action of the restoring force. Wherein, when the container 200 is disassembled into the installation position, the container 200 can abut the bracket 310 , so that the bracket 310 moves to the non-measurement position and/or the measurement position under the pushing of the container 200 .

Further, the unmanned aerial vehicle 10 for agricultural plant protection may further include a spray rod and a spray head, and the spray work of the liquid in the liquid storage chamber 210 is realized by the spray rod and the spray head. The spray rod can be arranged in communication with the liquid storage chamber 210 and the spray head, respectively, and a control valve for controlling the closing and opening of the spray head can also be provided as required.

In some embodiments, the agricultural plant protection UAV 10 may be a plant protection drone, or a spraying device such as an unmanned vehicle.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "left", "right", "vertical", "inner", "outer", etc. is based on the drawings. The orientation or positional relationship shown is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as affecting the present utility model. New type of restriction. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more features. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; it can be mechanical connection, electrical connection or mutual communication; it can be directly connected or indirectly connected through an intermediate medium, it can be internal communication between two components or mutual communication between two components role relationship. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the description of the present invention, unless otherwise expressly specified and limited, the first feature "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features. The second feature is not in direct contact but is in contact through another feature between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this specification, reference to the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples", etc., are intended to be combined with the implementation A particular feature, structure, material, or characteristic described in a manner or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the present invention. Variations, the scope of the present invention is defined by the claims and their equivalents.

Claims (36)

1. an agricultural plant protection unmanned aerial vehicle, is characterized in that, comprises: body; a container, the container is provided with a liquid storage chamber for accommodating liquid, and the container is detachably connected to the body; a liquid level gauge, the liquid level gauge is movably connected to the body, and the liquid level gauge is used to measure the liquid level of the liquid; wherein the level gauge is configured to be movable between a measuring position and a non-measuring position; When the liquid level gauge is located at the measuring position, the liquid level gauge can measure the liquid level in the liquid storage chamber; The container is detachable from the body when the level gauge is in the non-measuring position. 2. agricultural plant protection unmanned aerial vehicle according to claim 1, is characterized in that, When the liquid level gauge is at the measurement position, the separation direction of the container and the body is blocked by the liquid level gauge; When the liquid level gauge is located at the non-measurement position, the liquid level gauge deviates from the separation direction of the container and the body, so that the container can be freely separated from the body. 3. agricultural plant protection unmanned aerial vehicle according to claim 1, is characterized in that, described liquid level gauge comprises: a bracket, the bracket is movably connected with the body; The probe is installed on the bracket, and the probe is used to measure the liquid level of the liquid. 4. agricultural plant protection unmanned aerial vehicle according to claim 3, is characterized in that, described liquid level gauge also comprises: A reset piece, the reset piece is mechanically coupled with the support, and the reset piece is used to provide a restoring force to the support, so that the support is reset to the measurement position and/or to the measuring position under the action of the restoring force. the non-measurement location. 5. agricultural plant protection unmanned aerial vehicle according to claim 4 is characterized in that, The bracket is slidably connected relative to the body, and the body is provided with a receiving cavity for at least partially receiving the bracket; Wherein, when the liquid level gauge is at the measuring position, at least part of the bracket can slide out from the receiving cavity, and can drive the probe to move until the probe moves above the top of the container ; When the liquid level gauge is in the non-measurement position, the container can drive the support to slide, so that the support is moved into the receiving cavity, and the probe is located on one side of the container. 6. agricultural plant protection unmanned aerial vehicle according to claim 5, is characterized in that, the container is provided with a accommodating groove for at least partially accommodating the probe; Wherein, when the liquid level gauge is at the measuring position, the probe is at least partially accommodated in the accommodating groove, so that the separation direction of the container and the body is blocked by the probe; When the liquid level gauge is located at the non-measurement position, the probe is located outside the accommodating groove, so that the container can be freely separated from the body. 7 . The agricultural plant protection unmanned aerial vehicle according to claim 5 , wherein the reset member comprises an elastic member, the elastic member is in abutment with the bracket, and the elastic member is used to provide recovery to the bracket. 8 . force, so that the bracket slides out from the receiving cavity under the action of the elastic member, until the bracket returns to the measurement position. 8 . The agricultural plant protection unmanned aerial vehicle according to claim 4 , wherein the body is provided with a receiving cavity for at least partially receiving the support; 8 . The bracket includes an abutting portion and a sliding portion for mechanical coupling with the abutting portion, the probe is connected to the abutting portion, and the abutting portion can follow the sliding portion along a preset direction slide; The reset member includes an elastic member, the elastic member is accommodated in the receiving cavity, and the elastic member is in contact with the abutting portion or the sliding portion, and the elastic member is used to move the sliding portion to the sliding portion. provide resilience; Wherein, the sliding portion can drive at least part of the abutting portion to slide out of the receiving cavity under the action of the elastic member, until the abutting portion returns to the measurement position. 9. agricultural plant protection unmanned aerial vehicle according to claim 8, is characterized in that, One of the container and the abutting portion is provided with a guiding portion, and the other is provided with a pressing portion, and the pressing portion can freely slide along the guiding portion; Wherein, when the container is separated from the body, the pressing part abuts the guide part, and the container can drive the abutting part to slide into the accommodating cavity, so as to make the bracket Moved into the receiving cavity, the probe is located on one side of the container. 10. The unmanned aerial vehicle for agricultural plant protection according to claim 9, characterized in that, the guide portion is provided at the free end of the abutting portion; and/or The pressing part is arranged at the corner of the top of the container. 11. The unmanned aerial vehicle for agricultural plant protection according to claim 9, characterized in that, At least one of the guide portion and the pressing portion is an arc-shaped convex surface, or an inclined plane inclined with respect to the sliding direction of the sliding portion. 12. The unmanned aerial vehicle for agricultural plant protection according to claim 8, wherein the unmanned aerial vehicle for agricultural plant protection comprises: A first limiting portion, the first limiting portion is disposed on the bracket, and the first limiting portion is mechanically coupled with one end of the elastic member to prevent the elastic member from being separated from the bracket. 13. The unmanned aerial vehicle for agricultural plant protection according to claim 12, wherein the unmanned aerial vehicle for agricultural plant protection further comprises: A second limiting portion, the second limiting portion is disposed in the cavity formed by the receiving cavity, and the second limiting portion is mechanically coupled with the other end of the elastic member to prevent the elastic member from The inner wall of the receiving cavity is separated. 14 . The agricultural plant protection unmanned aerial vehicle according to claim 13 , wherein both ends of the elastic member in the telescopic direction are respectively disposed on the first limiting portion and/or the second limiting portion 14 . . 15. The unmanned aerial vehicle for agricultural plant protection according to claim 13, characterized in that, The second limiting portion is connected to the body, a first wire hole is opened on the second limiting portion, and the body is provided with a second wire hole communicated with the first wire hole , the wire of the probe can be connected to the power supply through the first through wire hole and the second through wire hole. 16 . The agricultural plant protection unmanned aerial vehicle according to claim 13 , wherein the elastic member is sleeved on the first limiting portion and/or the second limiting portion. 17 . 17 . The agricultural plant protection unmanned aerial vehicle according to claim 13 , wherein the elastic member is fixedly connected to the first limiting portion and/or the second limiting portion. 18 . 18 . The agricultural plant protection unmanned aerial vehicle according to claim 8 , wherein two ends of the elastic member in the telescopic direction are respectively fixedly connected to the inner wall surface of the cavity formed by the bracket and the receiving cavity. 19 . 19. The unmanned aerial vehicle for agricultural plant protection according to claim 4, characterized in that, the bracket is rotatably connected relative to the body; Wherein, the bracket can rotate along the first direction, and drive the probe to move until the probe moves to the top of the container and is located at the measurement position; The container can rotate in the opposite direction of the first direction, and drives the support to rotate, so that the probe is located at one side of the container and is located at the non-measurement position. 20. The unmanned aerial vehicle for agricultural plant protection according to claim 4, characterized in that, The agricultural plant protection unmanned aerial vehicle further includes a rotating shaft, and the bracket is rotatably connected to the body through the rotating shaft; The reset member includes an elastic member mechanically coupled with the bracket, and under the elastic force of the elastic member, the bracket can be automatically reset to the non-measurement position. 21. The unmanned aerial vehicle for agricultural plant protection according to claim 20, characterized in that, When the container is separated from the body, the rotation direction of the rotating shaft is configured as a counterclockwise direction; When the container and the body are loaded, the rotation direction of the rotating shaft is arranged in a clockwise direction. 22. The unmanned aerial vehicle for agricultural plant protection according to claim 20, wherein the body is provided with a receiving cavity for at least partially receiving the support; the support comprises: a first crossbar, the probe is connected to the first crossbar; A first longitudinal rod, the elastic member is used to provide a restoring force to the first longitudinal rod, the first longitudinal rod is rotatably connected to the body through the rotating shaft, and the first longitudinal rod is fixedly connected to the first transverse rod, the first transverse rod and the first longitudinal rod are formed into an L-shaped structure with an opening facing the container; Wherein, the first longitudinal rod can drive the first transverse rod to rotate out of the receiving cavity until the probe rotates to the top of the container and is located at the measurement position; The container can drive the first crossbar to rotate into the receiving cavity, so that the first crossbar rotates into the receiving cavity, and the probe is located on one side of the container and is located in the non- Measuring position. 23 . The agricultural plant protection unmanned aerial vehicle according to claim 22 , wherein when the liquid level gauge is located at the measuring position, the elastic member is in a compressed state, and the elastic member is located below the rotating shaft. 24 . . 24. The unmanned aerial vehicle for agricultural plant protection according to claim 22, wherein when the liquid level gauge is located at the measuring position, the elastic member is in a stretched state, and the elastic member is located on the side of the rotating shaft. above. 25. The unmanned aerial vehicle for agricultural plant protection according to claim 4, characterized in that, The agricultural plant protection unmanned aerial vehicle further includes a rotating shaft, and the bracket is rotatably connected to the body through the rotating shaft; The reset member includes an elastic member mechanically coupled with the bracket, and under the action of the elastic force of the elastic member, the bracket can be automatically reset to the measurement position. 26. The unmanned aerial vehicle for agricultural plant protection according to claim 25, characterized in that, When the container is separated from the body, the rotation direction of the rotating shaft is configured as the first movement direction; When the container is loaded into the body, the rotation direction of the rotating shaft is configured as the second movement direction; Wherein, the first movement direction and the second movement direction are arranged in the same direction. 27. The unmanned aerial vehicle for agricultural plant protection according to claim 25, wherein the body is provided with a receiving cavity for at least partially receiving the support; the support comprises: an abutting part, the probe is connected to the abutting part; A swinging portion, one end of the swinging portion is connected to the rotating shaft, the other end of the swinging portion is connected to the abutting portion, the swinging portion is rotatably connected to the body through the rotating shaft, and the elastic the piece is in contact with the swinging part, and the elastic piece is used for providing restoring force to the swinging part; Wherein, the swinging portion can drive at least part of the abutting portion to rotate out of the receiving cavity under the action of the elastic member, until the abutting portion is reset to the measurement position; The container can drive the abutting part to rotate into the accommodating cavity, so that the abutting part and the swinging part are rotated into the accommodating cavity, and the probe is located on one side of the container and is located at the the non-measurement location. 28. The unmanned aerial vehicle for agricultural plant protection according to claim 27, characterized in that, One of the container and the abutting portion is provided with a guiding portion, and the other is provided with a pressing portion, and the pressing portion can freely slide along the guiding portion; Wherein, when the container is separated from the body, the pressing part abuts the guiding part, the container can drive the abutting part to rotate into the receiving cavity, so that the bracket can be rotated Moved into the receiving cavity, the probe is located on one side of the container. 29. The unmanned aerial vehicle for agricultural plant protection according to claim 28, characterized in that, the guide portion is provided at the free end of the abutting portion; and/or The pressing part is arranged at the corner of the top of the container. 30. The unmanned aerial vehicle for agricultural plant protection according to claim 28, characterized in that, At least one of the guide portion and the pressing portion is an arc-shaped convex surface, or an inclined plane inclined with respect to the rotation direction of the swing portion. 31. The unmanned aerial vehicle for agricultural plant protection according to claim 27, characterized in that, When the liquid level gauge is located at the measuring position, the elastic member is located above the rotating shaft; or When the liquid level gauge is located at the measuring position, the elastic member is located below the rotating shaft. 32. The unmanned aerial vehicle for agricultural plant protection according to any one of claims 7, 22 and 28, wherein the unmanned aerial vehicle for agricultural plant protection further comprises: A limit component is provided in the space formed by the bracket and/or the receiving cavity, and the limit component is used to limit the movement range of the elastic member along the deformation direction. 33. The unmanned aerial vehicle for agricultural plant protection according to claim 4, wherein the reset member is configured as one or more of the following: a torsion spring, a compression spring, and an extension spring. 34. The agricultural plant protection unmanned aerial vehicle according to claim 1, wherein the liquid level gauge is used to transmit a detection signal to the liquid level to detect the liquid level of the liquid, and the detection signal includes the following: One or more of: sonic signal, radar signal, and laser signal. 35. The unmanned aerial vehicle for agricultural plant protection according to claim 1, wherein the container is configured as a box-like structure having an opening, and the opening faces a direction in which the container is separated from the body. 36. An unmanned aerial vehicle for agricultural plant protection, comprising: a body, the body is provided with an installation position for accommodating a container, the container is used for containing liquid, and can be detachably disassembled into the installation position; a liquid level gauge, the liquid level gauge includes a bracket movably connected to the body and a probe mounted on the bracket, the probe is used to detect the liquid level of the liquid in the container; and A reset piece, the reset piece is mechanically coupled with the support, and the reset piece is used to provide a restoring force to the support, so that the support is automatically reset to the measurement position and/or non-measurement under the action of the restoring force Location; Wherein, when the container is disassembled into the installation position, the container can abut the bracket, so that the bracket moves to the non-measuring position and/or the measurement under the pushing of the container Location.

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