CN217448631U - Atomizer and electron oral cavity atomizer - Google Patents

Abstract

The utility model relates to the field of oral care products, in particular to an atomizing nozzle and an electronic oral spray device. The atomizing nozzle comprises a microporous nozzle and an adapter for installing the microporous nozzle. The two ends of the adapter are respectively A liquid inlet hole and a liquid outlet hole are provided, the microporous nozzle is sleeved in the liquid outlet hole, and the central area of the microporous nozzle is provided with at least one microhole, and the microhole goes out from the liquid inlet hole. In the direction of the liquid hole, a jet flow channel and a conical inclined surface are arranged in sequence. The electronic oral spray device includes a body and a cover, the body includes a body and a handpiece, the handpiece includes a hemispherical head with a spray outlet, and a mist is arranged in the hemispherical head The atomizing nozzle is arranged opposite to the nozzle. The utility model does not need to use the atomization module, and sprays water droplets with small particle size between the water column and the spray effect through the microporous structure, the impact force is small, does not cause discomfort, and at the same time, it has the functions of reducing noise and preventing liquid leakage. There is a big improvement.

Description

A kind of atomizing nozzle and electronic oral spray device

technical field

The utility model relates to the field of oral care products, in particular to an atomizing nozzle and an electronic oral spray device.

Background technique

At present, there are some portable oral sprayers on the market, which are used to freshen breath or treat stomatitis, oral ulcers, pharyngitis, etc. The liquid particles sprayed by the existing oral sprayers are relatively large in size, wasteful, and inconvenient for oral absorption. . There are two kinds of common oral sprayers. One is to manually press the spray, which is very laborious and cannot be continuously pressed once. Because it relies on air pressure to spray liquid, it produces a popping noise; the other is an electronic port. A high-oscillation atomizer is provided at the spray outlet, which relies on oscillation to generate "spray", but has the disadvantages of serious liquid leakage, loud noise and high manufacturing cost.

Utility model content

In order to solve the above problems, the present invention provides an atomizing nozzle and an electronic oral spray device.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: an atomizing nozzle, comprising a microporous nozzle and an adapter for installing the microporous nozzle, and the two ends of the adapter are respectively provided with liquid inlet holes and A liquid outlet hole, the micro-hole nozzle is sleeved in the liquid outlet hole, the central area of the micro-hole nozzle is provided with at least one micro-hole, and the micro-holes are arranged in sequence from the liquid inlet hole to the liquid outlet hole direction. There are jet runners and tapered slopes. Due to external force, high temperature, negative air pressure, and natural placement, the atomizing nozzle of the utility model causes problems such as liquid leakage. The nozzle of the utility model adopts a micro-porous structure. Since the micro-holes are extremely small, the fluid cannot be stored without the pumping pump being activated during the storage process. It is sprayed or flowed out from the micro-holes, and at the same time the micro-holes cut the high-speed fluid to form atomized water droplets, which are instantly sprayed to form a water mist effect.

Preferably, the diameter d of the jet flow channel is 0.05MM˜0.2MM.

Preferably, a fluid pressure channel is provided between the liquid inlet hole and the liquid outlet hole of the adapter, and the flow cross section of the fluid pressure channel gradually becomes smaller from the liquid inlet hole to the liquid outlet hole, so The micro-porous nozzle is sleeved in the liquid outlet hole to form a pressurized water outlet fine gap with the adapter, and the fluid is powered by a pump to flow from the liquid inlet hole to the liquid outlet hole through the fluid pressurized channel in turn, and after the pressurized water outlet fine gap. ejected from the pores.

Preferably, the lower surface of the micro-hole nozzle is indented in the direction of the micro-holes to form an installation groove, the fluid pressurization channel is provided with a flow blocking boss, and the flow blocking boss is embedded in the installation groove and is connected with the installation groove. The inner wall surface of the installation groove forms a small gap for pressurized water outlet.

Preferably, the flow blocking boss divides the fluid pressurized channel into a first pressurizing chamber and a second pressurizing cavity, the flow blocking boss has an inclined wall, and the inclined wall is perpendicular to the The flow cross section of the first pressurizing chamber is inclined, and the inclined surface wall forms a conical spray neck at the junction of the first pressurizing chamber and the second pressurizing chamber.

An electronic oral spray device includes a body and a cover, the body includes a body and a head, the cover is hinged to the body, and covers the head when closed, and the head includes a spray nozzle. The hemispherical head of the outlet is characterized in that an atomizing nozzle is arranged in the hemispherical head, and the atomizing nozzle is arranged opposite to the nozzle.

In order to solve the problem of popping noise when pressing the existing oral spray device, preferably, the body includes a water pump, the water pump is connected to the power supply unit, one end of the water pump is connected to the liquid storage container through the water inlet pipe, and the other end is connected to the liquid storage container. The atomizing nozzle is connected through a water outlet pipe, the pipe length of the water outlet pipe is shorter than that of the water inlet pipe, and the pipe length L of the water outlet pipe is equal to less than 15mm. The pump provides power for the fluid to form a high-speed fluid. The high-speed fluid passes through the micro-holes of the atomizing nozzle. After the high-speed fluid reaches the micro-holes, it is cut by the micro-holes to form atomized water droplets, which are instantly sprayed to form water mist. The jets come out, and no noise is produced in the process.

In order to solve the problem that the existing pressing is very laborious and cannot be continuously pressed and sprayed once, preferably, the top of the inner surface of the cover is provided with a magnet, and the machine head is provided with a hole corresponding to the magnet. Er sensor. When the lid is opened, the electronic oral spray device is automatic, allowing continuous spraying without the need for constant or multiple hand pressing.

Preferably, the bottom of the fuselage is provided with a detachable liquid storage container, the water outlet of the liquid storage container is provided with a one-way valve core, and the top surface of the one-way valve core is provided with a cross-shaped passage. hole.

Preferably, the liquid storage container is connected to the water inlet pipe through a water pipe connection head, and the water pipe connection head is provided with a quick release structure, and the quick release structure includes a clamping claw, and the clamping claw is symmetrically arranged on the The two ends of the water pipe connection head are provided with an embedded groove at the bottom of the fuselage, and the two clamping claws are detachably connected to the embedded groove.

The beneficial effect of the utility model is that: the existing nozzle sprays water filaments, water droplets or water columns, and an atomization module is required to achieve the spray effect. The water droplets with small particle size between the water column and the spray effect have small impact force and will not cause discomfort. The fluid first passes through the jet flow channel with a small aperture, and at the moment of the conical slope, it forms a particle size with a larger diffusion area. Smaller water droplets have similar atomization effect, simple structure and low manufacturing cost.

In order to make the atomization effect of the atomizing nozzle closer to the atomizing effect of using the atomization module, using the principle of the Venturi effect that the flow velocity increases when the fluid passes through the reduced flow section, the flow section is designed in the atomizing nozzle from the inlet. The fluid pressure channel gradually becomes smaller from the liquid hole to the liquid outlet hole. The fluid flows through the fluid pressure channel from the liquid inlet hole to the liquid outlet hole in turn, and after the pressurized water outlet fine gap, the fluid forms a high-speed fluid, and the high-speed fluid reaches the micropore. It is then cut by micro-holes to form atomized water droplets, which are instantly sprayed to form water mist. The water mist is sprayed from the spray port to achieve better atomization effect. The mist-like liquid enters the oral cavity and is quickly absorbed by the oral cavity.

The atomizing nozzle of the utility model is applied to an electronic oral spray device, can automatically and continuously spray with little noise, and can significantly prevent liquid leakage compared with ordinary electronic oral spray during natural storage.

Description of drawings

FIG. 1 is a structural diagram of an electronic oral spray device of the present invention.

FIG. 2 is a cross-sectional view of A-A in FIG. 1 .

FIG. 3 is a cross-sectional view of B-B in FIG. 1 .

4 is a schematic diagram of the assembly of the liquid storage container and the inner casing of the electronic oral spray device of the present invention.

FIG. 5 is a body structure diagram of the electronic oral spray device of the present invention.

6 is a structural diagram of a liquid storage container of the electronic oral spray device of the present invention.

7 is a cross-sectional view of the liquid storage container of the electronic oral spray device of the present invention.

FIG. 8 is a schematic diagram of the assembly of the water pump, the liquid storage container and the atomizing nozzle of the electronic oral spray device of the present invention.

FIG. 9 is a structural diagram of the handpiece of the electronic oral spray device of the present invention.

10 is a structural diagram of the cover of the electronic oral spray device of the present invention.

Figure 11 is a structural diagram of the atomizing nozzle of the present invention.

Figure 12 is a cross-sectional view of the atomizing nozzle of the present invention.

FIG. 13 is an enlarged view of C in FIG. 12 .

Figure 14 is an exploded view of the atomizing nozzle of the present invention.

Figure 15 is a structural diagram of the adapter of the atomizing nozzle of the present invention.

Figure 16 is a structural diagram of the micro-hole nozzle of the atomizing nozzle of the present invention.

Notes: 1. Cover; 11. Hinged joint; 12. Connecting shaft; 13. Spring; 14. Magnet; 2. Body; 21. Body; 211. Outer body; ; 2121, clip; 2122, first inner shell; 2123, second inner shell; 2124, embedded groove; 2131, water pump; 2132, water inlet pipe; 2133, water outlet pipe; 2142, circuit board; 2143, charging port; 22, machine head; 221, hemispherical head; 222, spout; 223, groove hinge; 224, hinge shaft; 225, Hall sensor; 23, detachable tail cover; 231, liquid storage container; 2311 , water outlet; 2312, liquid storage chamber; 232, water pipe connector; 233, pipe body; 234, one-way valve core; 3, atomizing nozzle; 31, adapter; 311, liquid inlet hole; 312, outlet Liquid hole; 3131, first pressurizing chamber; 3132, blocking boss; 3133, inclined wall; 3134, second pressurizing chamber; 32, micro-hole nozzle; 321, micro-hole; 322, tapered slope; 323, Installation groove; 324, jet flow channel; 33, pressurized water outlet.

Detailed ways

1-16, the present invention relates to an electronic oral spray device, including a body 2 and a cover 1, the body 2 includes a body 21, a head 22 and a detachable tail cover 23, the cover 1 and The body 2 is hinged in a flip type, and the cover 1 covers the machine head 22 when it is closed.

The fuselage 21 includes an inner casing 212, an outer casing 211, a water pump 2131, and a power supply unit (not shown),

The outer casing 211 is a hollow cylindrical body with openings at both ends, and a plurality of clamping grooves 2111 are provided on the inner wall surface of the outer casing 211 .

The outer surface of the inner casing 212 is provided with a plurality of clips 2121 that match the clip slots 2111 , the inner casing 212 is assembled in the outer casing 211 through the clip strips 2121 and the clip slots 2111 , and the inner casing 212 includes a first inner casing 2122 and the second inner shell 2123, the first inner shell 2122 and the second inner shell 2123 are detachably connected through a snap-fit slot structure (the snap-fit slot structure is the prior art, and will not be described here), the first The inner shell 2122 and the second inner shell 2123 enclose an accommodating space with an open upper end, and the pumping pump 2131, the power supply unit (not shown) and the control unit (not shown) are arranged in the accommodating space,

The suction pump 2131 is connected to the power supply unit (not shown), one end of the suction pump 2131 is connected to the liquid storage container 231 through the water inlet pipe 2132, and the other end is connected to the atomizing nozzle 3 through the water outlet pipe 2133. The atomizing nozzle 3 is used for Makes liquid form a mist. In order to minimize the residual liquid in the water outlet pipe 2133 , the pipe length L of the water outlet pipe 2133 is controlled within 15 mm and is shorter than that of the water inlet pipe 2132 . When the water flow of the water pump is greater than 40ML per minute, a better atomization effect can be achieved.

The power supply unit includes a battery (not shown), a circuit board 2142, and a charging port 2143 connected in sequence. The battery is electrically connected to the circuit board 2142, and the circuit board 2142 is connected to the water pump 2131 for driving/controlling the operation of the water pump 2131. The charging port 2143 can be directly connected to an external power source, so that the battery can be charged repeatedly without replacing the battery, and the body 21 can be recycled, which is beneficial to environmental protection.

The machine head 22 includes a hemispherical head 221 provided with an ejection port 222. The hemispherical head 221 is provided with an atomizing nozzle 3. The atomizing nozzle 3 is arranged opposite to the ejection port 222, and a groove is provided on one side of the hemispherical head 221. The slot type hinge part 223 is provided with a hinge shaft 224 in the slot type hinge part 223 . Correspondingly, the cover 1 is provided with a hinge head 11 extending into the slot-shaped hinge part 223 and connected with the hinge shaft 224 . The cover 1 is hinged with the machine head 22 through the hinge head 11 and the hinge shaft 224, so as to facilitate opening and closing. The slot-shaped hinge portion 223 is also provided with an opening support mechanism for connecting the hinge head 11 , which includes a connecting shaft 12 hinged with the hinge head 11 , and a spring 13 sleeved on the connecting shaft 12 . The cover-opening support mechanism can provide a certain supporting force when the cover 1 is opened, so that the cover 1 can be kept in an open state for ease of use.

Specifically, in one illustrated embodiment, a magnet 14 is provided on the top of the inner surface of the machine cover 1 and on the side away from the hinge portion, and a Hall sensor 225 corresponding to the position of the magnet 14 is provided in the machine head 22, so that, When the cover 1 is opened, the Hall sensor 225 provides a corresponding level signal to the circuit board 2142 to indicate the open state of the cover 1, and then the circuit board 2142 controls the suction pump 2131 to perform corresponding actions. For example, it can be set to control the atomizing nozzle 3 to automatically run for 0.5 to 3 seconds and then stop working when it is detected that the cover 1 is opened.

The atomizing nozzle 3 includes a micro-hole nozzle 32 for atomizing the liquid and an adapter 31 for installing the micro-hole nozzle 32. The two ends of the adapter 31 are respectively provided with a liquid inlet hole 311 and a liquid outlet hole 312. 32 is sheathed in the liquid outlet hole 312 and has an interference fit with the liquid outlet hole 312, that is, the microporous nozzle 32 seals the liquid outlet hole 312. The micro-holes 321 on the upper and lower surfaces, the micro-holes 321 are inverted conical structures that gradually increase from the liquid inlet to the liquid outlet, and a tapered slope 322 is formed on the surface of the adapter 31. The micro-holes 321 and the spray The position of the outlet 222 corresponds to the position of each micro-hole 321 . The diameter d of each micro-hole 321 is 0.05MM～0.2MM. The lower surface of the micro-hole nozzle 32 is indented in the direction of the micro-hole 321 to form a mounting groove 323 . The liquid inlet hole 311 of the adapter 31 and the outlet A fluid pressurization channel is provided between the liquid holes 312, and the fluid pressurization channel is sequentially provided with a first pressurizing chamber 3131 and a second pressurizing chamber 3134 from the liquid inlet hole 311 to the liquid outlet hole 312, and the second pressurizing chamber 3134 A flow blocking boss 3132 is provided, and the flow blocking boss 3132 has a sloped wall 3133, and the sloped wall 3133 is inclined from the flow cross section perpendicular to the first pressurized chamber 3131, so that the flow of the second pressure chamber 3134 can flow. The cross section gradually becomes smaller from the liquid inlet hole 311 to the liquid outlet hole 312, so that the inclined wall 3133 forms a conical spray neck at the junction of the first pressurizing chamber 3131 and the second pressurizing chamber 3134, and the blocking boss 3132 is embedded in the installation groove A pressurized water outlet 33 is formed in the interior of 323 and with the inner wall surface of the installation groove 323 .

The fluid supplied with a certain power by the pump enters the micro-hole 321 through the liquid inlet hole 311, and the high-speed fluid reaches the micro-hole 321 and is cut by the micro-hole 321 to form water droplets with smaller particle size. , the walking distance of the water droplets with smaller particle size in the jet flow channel 324 has a certain influence on the atomization effect. In this embodiment, the jet flow channel 324 is 1MM-5MM long, and the water droplets with smaller particle size reach the conical slope 322 after the , the flow cross section of the fluid flow suddenly increases, and the sprayed water droplets with smaller particle size collide with each other and then split, instantly forming a water mist similar to the atomization effect, forming tiny atomized water droplets sprayed from the spray port 222 into the oral cavity.

Due to the Venturi effect, when the high-speed fluid flows through the reduced flow cross-section, the flow velocity of the fluid increases. The structure of the fluid pressurized channel and the pressurized water outlet fine gap 33 are arranged to make the fluid form a high-speed fluid in the adapter 31. , the high-speed fluid breaks into atomized water droplets with smaller particle size after encountering the micropores 321.

Preferably, the number of the micro-holes 321 on the central area of the micro-hole nozzle 32 may be multiple, ranging from 1 to 9.

The flow section refers to the section taken perpendicular to the streamline cluster, which is called the flow section. The area of the flow cross section is denoted by A. When the streamline clusters are not parallel to each other, the flow section is a curved surface; when the streamline clusters are parallel to each other, the flow section is a plane. The volume of fluid passing through a certain flow cross-section per unit time is called the flow rate, expressed by Q, and the unit is m3/s.

The Venturi effect refers to the phenomenon that the flow velocity of the fluid increases when the restricted flow passes through the reduced flow section, and the flow velocity is inversely proportional to the flow section.

The water outlet 2311 of the liquid storage container 231 is connected to the water inlet pipe 2132 through the water pipe connection head 232, one end of the water pipe connection head 232 is connected to the water inlet pipe 2132, the other end of the water pipe connection head 232 is connected to the water outlet 2311 of the liquid storage container 231, and the water pipe connection head 232 is provided with a pipe body 233, the pipe body 233 is connected to the liquid storage chamber 2312 of the liquid storage container 231, the water outlet 2311 of the liquid storage container 231 is provided with a one-way valve core 234, and the top surface of the one-way valve core 234 is provided with a ten-way valve. A zigzag through hole, the pipe body 233 is inserted into the liquid storage chamber 2312 through the one-way valve core 234, and the one-way valve core 234 is opened under the action of an external force other than the liquid storage container 231, that is, the water pipe connecting head 232 is connected to the one-way valve core 231. When the valve core 234 is docked, the water pipe connector 232 pushes open the one-way valve core 234. When the liquid storage container 231 is not installed on the body 21, the one-way valve core 234 seals the liquid in the liquid storage chamber 2312 into the liquid storage chamber 231. inside chamber 2312.

The detachable tail cover 23 is detachably installed at the bottom of the fuselage 21. The detachable tail cover 23 is provided with a liquid storage container 231, that is, the end of the fuselage 21 is also provided with a liquid storage container 231. After installation, the liquid storage container 231 is covered, so that when the liquid storage container 231 needs to be replaced, the detachable tail cover 23 can be opened to perform corresponding operations. The liquid storage container 231 is a liquid storage bottle made of food-grade material, which stores the oral spray liquid inside, which is a formula liquid that is beneficial to the oral cavity. The bottom of the fuselage 21 . During installation, the detachable tail cover 23 on the fuselage 21 is removed, and the liquid storage container 231 can be taken out as a whole and replaced with a new one for installation. The liquid storage container 231 is provided with a quick-release structure. The quick-release structure includes clamping jaws (not shown in the figure). The clamping jaws are symmetrically arranged at both ends of the water pipe connector 232. The bottom of the inner shell is provided with an embedded groove 2124. The two clamping jaws and the embedded groove 2124 can be detachably connected, and the two jaws are elastic. After pinching the two jaws with both hands to reduce the distance between the two jaws, they can be pulled out from the embedded groove 2124 together to complete the disassembly of the mechanical jaws. Plug the two jaws together. into the embedding groove 2124, release the two clamping claws, the two clamping claws are stuck in the embedding groove 2124, after the water pipe connector 232 is connected with the water outlet 2311 of the liquid storage container 231, the quick release structure makes the liquid storage container 231 fixed to the body At the bottom of 21, the replacement of the liquid storage container 231 is completed, and the quick disassembly and replacement of the liquid storage container 231 is realized through the quick disassembly structure.

The working principle of this electronic oral spray device:

When the cover 1 is opened, the Hall sensor 225 provides a corresponding level signal to the circuit board 2142 to indicate the open state of the cover 1, and then the circuit board 2142 controls the suction pump 2131 to perform corresponding actions. The suction pump 2131 extracts liquid from the liquid storage chamber 2312 of the liquid storage container 231 through the water inlet pipe 2132. The water flow rate of the suction pump 2131 is greater than 40ML per minute. A high-speed fluid is formed in the connector 31. After the high-speed fluid reaches the micro-hole 321, it is cut by the micro-hole 321 to form water droplets with smaller particle size. The flow section suddenly increases, and the sprayed water droplets with smaller particle size collide with each other and then split, instantly forming a water mist similar to atomization, forming tiny atomized water droplets that are sprayed into the oral cavity from the spray port 222, and the mist is formed. The impact force of the water droplets is small and will not cause discomfort to the user.

The above embodiments are only to describe the preferred embodiments of the present invention, and do not limit the scope of the present invention. On the premise of not departing from the design spirit of the present invention, ordinary engineers and technicians in the art make the technical solutions of the present invention. Various deformations and improvements should fall within the protection scope determined by the claims of the present utility model.

Claims (10)

1. an atomizing nozzle, it is characterized in that: comprise microporous nozzle and the adapter that installs microporous nozzle, described adapter two ends are respectively provided with liquid inlet hole and liquid outlet hole, described microporous The nozzle is sleeved in the liquid outlet hole, and the center area of the micro-porous nozzle is provided with at least one micro-hole, and the micro-hole is sequentially provided with a jet flow channel and a conical slope in the direction from the liquid inlet hole to the liquid outlet hole. 2 . The atomizing nozzle according to claim 1 , wherein the diameter d of the jetting flow channel is 0.05MM～0.2MM. 3 . 3. An atomizing nozzle according to claim 1, characterized in that: a fluid pressure channel is provided between the liquid inlet hole and the liquid outlet hole of the adapter, and the fluid pressure channel has a The flow cross section gradually becomes smaller from the liquid inlet hole to the liquid outlet hole. The micro-porous nozzle is sleeved in the liquid outlet hole to form a pressurized water outlet fine gap with the adapter, and the fluid is powered by the suction pump from the liquid inlet hole to the outlet. The liquid holes sequentially flow through the fluid pressurized channel, pressurize the water out of the fine gaps, and then spray out from the micropores. 4. An atomizing nozzle according to claim 3, characterized in that: the lower surface of the microporous nozzle is indented in the direction of the microporous to form a mounting groove, and the fluid pressurized channel is provided with a blocking flow A boss, the flow blocking boss is embedded in the installation groove and forms a pressurized water outlet fine gap with the inner wall surface of the installation groove. 5 . The atomizing nozzle according to claim 4 , wherein the flow blocking boss divides the fluid pressurizing channel into a first pressurizing chamber and a second pressurizing chamber, and the blocking flow The boss has a sloped wall, the sloped wall is inclined from the flow cross section perpendicular to the first pressure chamber, and the sloped wall forms a conical spray neck at the junction of the first pressure chamber and the second pressure chamber . 6. An electronic oral spray device, comprising a body and a cover, the body includes a body and a head, the cover and the body are hingedly flipped, and cover the head when closed, and the head includes a device. A hemispherical head with a spray outlet, characterized in that the hemispherical head is provided with an atomizing nozzle according to any one of claims 1 to 3, and the atomizing nozzle is arranged opposite to the nozzle. 7. An electronic oral spray device according to claim 6, characterized in that: the body comprises a water pump, the water pump is connected to a power supply unit, and one end of the water pump is connected to a liquid storage container through a water inlet pipe, The other end is connected to the atomizing nozzle through a water outlet pipe, the pipe length of the water outlet pipe is shorter than that of the water inlet pipe, and the pipe length L of the water outlet pipe is equal to less than 15mm. 8 . The electronic oral spray device according to claim 6 , wherein the top of the inner surface of the cover is provided with a magnet, and the head is provided with a Hall sensor corresponding to the magnet. 9 . 9 . The electronic oral spray device according to claim 6 , wherein a detachable liquid storage container is provided at the bottom of the body, and a one-way valve is provided at the water outlet of the liquid storage container. 10 . The top surface of the one-way valve core is provided with a cross-shaped through hole. 10. An electronic oral spray device according to claim 9, characterized in that: the liquid storage container is connected to the water inlet pipe through a water pipe connection head, and the water pipe connection head is provided with a quick-release structure, so The quick-release structure includes clamping claws, which are symmetrically arranged at both ends of the water pipe connection head, and an embedding groove is arranged at the bottom of the body, and the two clamping claws are detachably connected to the embedding groove.

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