Many rotor unmanned aerial vehicle plug-in horn locking device and unmanned aerial vehicle
Technical Field
The invention relates to the technical field of unmanned aerial vehicles, in particular to a plug-in type horn locking and anti-loosening device of a multi-rotor unmanned aerial vehicle and the unmanned aerial vehicle.
Background
Along with the maturation of small-size many rotor unmanned aerial vehicle technique and the expansion of application field, in order to improve unmanned aerial vehicle's portability and quick expansion recovery ability, need to connect locking mechanical system to some parts designs on the aircraft. The horn is as many rotor unmanned aerial vehicle major component, for reducing its occupation of land space, most unmanned aerial vehicle adopts folding locking structure at present, but because still connect between horn and the fuselage, can't furthest improve space utilization, and the folding locking structure of horn is complicated among the prior art, and the easy fatigue damage of key structure piece after long-term folding leads to the horn folding department to connect not hard up, increases the aircraft vibration, threatens flight safety. The rest of airplanes adopting the plug-in type horn locking structure are mostly focused on mechanical positioning and locking, and no anti-loosening measures are adopted to ensure that the horn is not loosened in the flying vibration process.
Accordingly, there is a need to develop a new multi-rotor unmanned aerial vehicle pluggable horn locking and locking device to address the deficiencies of the prior art, to address or mitigate one or more of the problems described above.
Disclosure of Invention
In view of the above, the invention provides a plug-in type horn locking and anti-loosening device for a multi-rotor unmanned aerial vehicle and the unmanned aerial vehicle, which can overcome the defects that a folding type horn locking structure is complex and easy to fatigue and loosen, and solve the problem that the plug-in type horn locking structure only locks and does not prevent the release of the horn.
In one aspect, the invention provides a plug-in horn locking and anti-loosening device of a multi-rotor unmanned aerial vehicle, which comprises a horn, a threaded locking ring, an anti-loosening mechanism, a guide ring and a horn seat;
The threaded locking ring is sleeved at the joint of the horn and the horn seat and is in threaded connection with the horn seat;
The locking mechanism is arranged on the horn and is connected with the threaded locking ring;
the guide ring is fixedly arranged at the connecting end of the horn and is connected with the connecting end of the horn seat in a positioning mode.
In aspects and any one of the possible implementations described above, there is further provided an implementation, the threaded locking ring including an annular body, an engagement tooth, a retainer ring, and internal threads;
the retainer ring is arranged at one end of the annular body and used for blocking the guide ring to be tightly connected with the arm seat;
the meshing teeth are arranged at the outer end of the check ring and are used for being in meshing connection with the anti-loosening mechanism;
The internal thread is arranged on the inner wall of the annular body and is connected with the external thread arranged on the horn seat.
In aspects and any one of the possible implementations described above, there is further provided an implementation in which the outer wall of the annular body is provided with knurling.
In accordance with aspects and any one of the possible implementations described above, there is further provided an implementation in which the annular body, the engagement teeth, the retainer ring, and the internal thread are integrally connected.
In aspects and any one of the possible implementations described above, there is further provided an implementation, the anti-loose mechanism including a button, a bullet, a spring, a bullet barrel, and bullet-engaging teeth;
the barrel is fixedly arranged in the horn, the spring is arranged in the barrel;
The lower end of the button passes through a button assembly hole arranged on the horn and then is connected with the spring block, and the bottom of the spring block is connected with the upper end of the spring;
the elastic block meshing teeth are fixedly connected with the elastic blocks and move downwards and upwards along with the pressing force applied to the button and the restoring elastic force of the spring when the button is not pressed;
The elastic block meshing teeth extend out of meshing teeth assembly holes formed in the arm wall after moving upwards and are in meshing connection with the meshing teeth of the threaded locking ring.
According to the aspects and any possible implementation manner, an implementation manner is further provided, an elongated guide groove is formed in the side wall of the barrel, the bullet meshing teeth are fixedly connected with the bullet through extension pieces, and the extension pieces are located in the guide groove.
According to the aspects and any possible implementation manner, an implementation manner is further provided, a strip-shaped guide groove is formed in the side wall of the bullet barrel, a horizontal guide strip is arranged on one side of the bullet block, and the guide strip is arranged in the guide groove.
The guide ring is provided with a plurality of positioning bosses, the end part of the arm seat is provided with a plurality of corresponding positioning grooves, and the positioning bosses are embedded in the positioning grooves.
In aspects and any one of the possible implementations described above, there is further provided an implementation in which the outer wall of the guide ring is connected with the inner wall of the threaded locking ring.
As described above, in one aspect and any possible implementation manner, there is further provided an implementation manner, a plurality of first fixing holes are formed on the guide ring, a plurality of second fixing holes are formed on the arm wall, the first fixing holes and the second fixing holes are correspondingly arranged one by one, and the guide ring is fixedly connected with the arm through inserting a fixing piece.
On the other hand, the invention provides a multi-rotor unmanned aerial vehicle, which comprises a machine body and the plug-in type horn locking and anti-loosening device, wherein a horn seat of the plug-in type horn locking and anti-loosening device is fixedly connected with the machine body.
Compared with the prior art, one of the technical schemes has the advantages that the whole device is simple in form, compact in structure, light in weight, stable and reliable, the horn can be quickly disassembled, and the space utilization rate is further improved;
the other technical scheme has the advantages that the key structural members are not repeatedly folded and stressed by adopting the push-button unlocking plug-in mode, so that the connection strength is improved, the service life is prolonged, and the flight safety is ensured;
the other technical scheme has the advantages that the invention adopts redundancy design, an anti-loose mechanism is added, the spring drives the elastic block to automatically lock and stop rotation after the threaded locking ring is screwed, and the airplane arm is ensured not to loose in the flight vibration process.
Of course, it is not necessary for any of the products embodying the invention to achieve all of the technical effects described above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a plug-in horn locking and loosening preventing device of a multi-rotor unmanned aerial vehicle according to an embodiment of the invention;
FIG. 2 is a detailed view of the structural features of a threaded locking ring provided in accordance with one embodiment of the invention;
fig. 3 is a schematic structural diagram of a pluggable horn locking and locking device of a multi-rotor unmanned aerial vehicle according to an embodiment of the present invention after the horn is removed;
FIG. 4 is an exploded view of a locking mechanism provided by one embodiment of the present invention;
Fig. 5 is a cross-sectional view of one embodiment of the present invention in a locked state.
Wherein, in the figure:
1. A horn; 2, a threaded locking ring, 3, a horn seat, 4, a locking mechanism, 5, a guide ring;
21. the gear teeth are meshed, the check rings are 22, the reticulate knurling is 23, and the internal threads are 24;
31. 32, external threads;
41. button, 42, spring block, 421, guide bar, 422, spring block engagement tooth, 43, spring, 44, spring barrel, 441, guide groove;
51. And positioning the boss.
Detailed Description
For a better understanding of the technical solution of the present invention, the following detailed description of the embodiments of the present invention refers to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Aiming at the defects of the prior art, the invention provides a plug-in type horn locking and anti-loosening device of a multi-rotor unmanned aerial vehicle, which comprises a horn, a threaded locking ring, an anti-loosening mechanism, a guide ring and a horn seat.
And the horn is provided with a positioning hole for fixing the locking mechanism and the guide ring.
The threaded locking ring is provided with meshing teeth, a check ring, reticulate knurling and internal threads, and is sleeved on the horn and positioned between the anti-loosening mechanism and the guide ring. The threaded locking ring is mainly used for tensioning the guide ring and the arm seat through rotation butt joint of the internal threads, and then the arm and the machine body are connected.
The anti-loose mechanism comprises a button, a spring block, a spring and a spring barrel. The elastic block is provided with elastic block meshing teeth, and the anti-loosening device is matched with the meshing teeth on the threaded locking ring through the elastic block meshing teeth to loosen the threaded locking ring. The bottom of the barrel is provided with a threaded hole, and the anti-loosening mechanism is fixed inside the horn through the threaded hole at the bottom of the barrel.
The guide ring is fixed on the horn, and 3 positioning bosses are arranged on the guide ring and used for being matched with the positioning grooves on the horn seat in a positioning way.
The horn seat is fixedly connected with the unmanned aerial vehicle body, and a positioning groove is formed in the horn seat and is used for being matched with the positioning boss on the guide ring in a positioning mode.
Example 1:
As shown in fig. 1, the invention provides a plug-in horn locking and anti-loosening device of a multi-rotor unmanned aerial vehicle, which comprises a horn 1, a threaded locking ring 2, a horn seat 3, an anti-loosening mechanism 4 and a guide ring 5.
The arm 1 is cylindrical, and is provided with a positioning hole for fixing the locking mechanism 4 and the guide ring 5.
The screw locking ring 2 is provided with engagement teeth 21, a retainer ring 22, knurled knurls 23 and internal threads 24 in addition to the annular body, as shown in fig. 2, and three sub-views in fig. 2 are a front view, a sectional view and a perspective view in order. The retainer ring 22 is arranged at one end of the annular body, the retainer ring 22 is provided with meshing teeth 21 distributed in an annular shape, the inner wall of the annular body is provided with internal threads 24, the outer wall of the annular body is provided with reticulate knurls 23, and the annular body, the meshing teeth 21, the retainer ring 22, the reticulate knurls 23 and the internal threads 24 are fixedly connected and can also be prepared into an integrated structure by adopting an integrated molding process. The threaded locking ring 2 is sleeved on the horn 1 in a direction that one end of the check ring 22 is far away from the horn seat 3 to be connected, and the threaded locking ring 2 is positioned between the anti-loosening mechanism 4 and the guide ring 5. The threaded locking ring 2 is rotated clockwise until the retainer ring 22 contacts the guide ring 5, and the guide ring 5 and the arm seat 3 are tensioned by the rotary butt joint of the internal thread 24 and the external thread 32 of the arm seat 3, so that the arm 1 and the machine body are connected.
The end of the horn 1 is fixed with a guide ring 5, the outer end of the guide ring 5 (i.e. the end close to the horn seat 3) is provided with 3 positioning bosses 51 for positioning and matching with the positioning grooves 31 arranged at the connecting end of the horn seat 3, specifically, the positioning bosses 51 are inserted into the corresponding positioning grooves 31, and the other end of the horn seat 3 is fixedly connected with the unmanned aerial vehicle body. Be equipped with a plurality of first fixed orificess on the guide ring 5, be equipped with a plurality of second fixed orificess on the horn 1, first fixed orificess and second fixed orificess one-to-one set up for insert and establish the mounting in order to realize the fixed connection of guide ring and horn. The first fixing hole can be arranged at the position with the positioning boss, the area of the position is larger, the fixing hole is conveniently formed, and the fixing strength is improved.
The lock mechanism 4 includes a button 41, a block 42, a spring 43, and a barrel 44. An exploded view of the locking mechanism 4 is shown in fig. 4. The spring 43 is arranged in the barrel 44, the lower end of the button 41 with the T-shaped structure is provided with external threads, and the button is in threaded connection with an internal threaded hole arranged on the bullet block 42 and then is arranged above the spring 43 in the barrel 44. The elastic block 42 is provided with a guide bar 421 on one side and elastic block engaging teeth 422 on the other side, wherein the elastic block engaging teeth 422 are extended to a certain extent compared with the elastic block 42 and the extended part is in a horizontal L shape, the elastic block engaging teeth 422 are positioned at the vertical high position of the horizontal L-shaped extended part, and the bottom surface of the elastic block engaging teeth 422 and the top surface of the elastic block 42 are positioned at the same horizontal plane. The spring engagement teeth 422, extension and spring 42 are integrally connected. The barrel 44 is a cylindrical structure with one end open, two vertically arranged strip openings (i.e. guide slots 441) are correspondingly arranged on the side wall of the open end of the cylindrical structure, and the widths of the two strip openings are respectively matched with the width of the guide strip 421 and the width of an extension piece for connecting the engagement teeth 422 of the spring block. Pressing the button 41 downward compresses the spring 43 and the guide bar 421 on the bullet 42 and the extension move downward along the guide groove 441 on the side wall of the barrel 44, the bottom end of the guide groove defining the maximum degree of spring compression.
The barrel 44 is arranged inside the horn 1, and the bottom of the barrel is fixedly connected with the inner wall of the bottom of the horn 1. The upper wall of the arm 1 is provided with a button assembly hole at a position opposite to the barrel 44, and a meshing tooth assembly hole is arranged beside the button assembly hole. The lower end of the button 41 passes through the button assembly hole and is in threaded connection with a spring block 42 arranged in the arm. When the button is pressed, the spring block engaging teeth 422 move downwards correspondingly, and when the button is released, the spring block engaging teeth 422 move upwards under the restoring force of the spring so that the spring block engaging teeth 422 extend out of the engaging teeth assembling holes, and at the moment, the L-shaped extending piece is horizontally laid to be clung to the inner upper wall of the arm. The elastic block engaging teeth 422 are matched with the engaging teeth 21 on the threaded locking ring 2 to carry out engaging connection after protruding out of the arm, thus realizing the anti-rotation and anti-loosening of the threaded locking ring 2. The bottom of the barrel 44 is provided with a threaded hole, and the locking mechanism 4 is fixed inside the horn 1 through the threaded hole at the bottom of the barrel 44.
The multi-rotor unmanned aerial vehicle plug-in type horn locking and loosening prevention device and the unmanned aerial vehicle provided by the embodiment of the application are described in detail. While the foregoing examples have been provided to assist those of ordinary skill in the art in understanding the methods and concepts underlying the application, those skilled in the art will recognize that there may be variations in the embodiments and applications of the application in light of the foregoing, and that the application is not to be construed as limited to what is described herein.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one of the elements" does not exclude the presence of additional identical elements in a commodity or system comprising the element. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In the present application, the terms "upper", "lower", "left", "right", "inner", "outer", "middle", "lateral", "vertical", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. In addition to the above terms may be used to denote orientation or positional relationships, other meanings may be used, such as the term "upper" may also be used in some cases to denote some sort of attachment or connection. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances. The term "and/or" as used herein is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B, and may mean that a exists alone, while a and B exist alone, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.