CN115089824B

CN115089824B - Atomizer

Info

Publication number: CN115089824B
Application number: CN202210676221.5A
Authority: CN
Inventors: 姜山德龙; 李桂蓉; 徐铭; 章敏贤; 周云逸
Original assignee: Ningbo Simaer Medical Technology Co ltd
Current assignee: Ningbo Simaer Medical Technology Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2024-02-02
Anticipated expiration: 2042-06-15
Also published as: CN115089824A

Abstract

The invention relates to the field, in particular to an atomizer, which comprises an atomizer main unit for providing compressed gas, an atomizing cup for atomizing liquid medicine and a liquid pre-filling device arranged outside the cup body, wherein a liquid containing cavity for containing the liquid medicine is formed in the cup body, and the liquid pre-filling device comprises a mounting cylinder arranged on the outer side of the cup body, at least two liquid medicine pipes for pre-filling the liquid medicine and a liquid filling cover slidingly and rotatably arranged on one side of the mounting cylinder far away from the cup body; the mounting cylinder is provided with a placement cavity corresponding to the liquid medicine pipe along the axial direction, the cup body is provided with a liquid inlet communicated with the placement cavity, the placement cavities are uniformly distributed along the circumferential direction of the mounting cylinder, the liquid medicine tube is arranged in the placing cavity, two ends of the liquid medicine tube are sealed through the sealing piston and the elastic sealing mechanism, and the liquid injection cover is provided with a pushing block for pushing the sealing piston to slidingly inject liquid medicine. This application has the effect of making things convenient for the operator to fill liquid medicine in the atomizing cup.

Description

Atomizer

Technical Field

The present application relates to the field of medical devices, and more particularly, to an atomizer.

Background

An atomizer is a medical device for atomizing test solutions such as saline, water, liquid medicine, vaccine and the like to form aerosol for a user to inhale to treat diseases. The atomizer includes various types such as ultrasonic atomizer, air compression atomizer, and the like. The air compression type atomizer is widely used because of good clinical effect and convenient operation.

Current air-compressed atomizers, referring to fig. 1, comprise an atomizer main unit for supplying compressed gas and an atomizing cup for atomizing liquid. The atomizing cup comprises a cup body 21, a compressed gas pipe 23 penetrating through the bottom of the cup body 21, a resisting part 25 above the compressed gas pipe 23 and an air outlet pipe 27 for discharging atomized aerosol, wherein a liquid containing cavity 2121 surrounding the compressed gas pipe 23 for containing liquid medicine is formed in the cup body 21, and a liquid absorbing groove 242 communicated with the liquid containing cavity 2121 is formed on the periphery of the compressed gas pipe 23. In use, the operator opens the atomizing cup to inject the chemical liquid into the liquid containing chamber 2121, and the compressed gas flowing at a high speed is ejected from the compressed gas pipe 23 toward the opening at one end of the stopper 25. According to the Bernoulli principle, where the fluid flow velocity is large, the pressure is small, so that a piece of negative pressure region is formed around the opening of the compressed gas pipe 23. Thereby the liquid medicine in the liquid holding cavity 2121 is sucked to the vicinity of the upper opening of the compressed gas pipe 23 by the liquid suction groove 242 under the action of the pressure difference at the two ends, and the sprayed air flow carries the liquid medicine to collide with the resisting part 25 so that the liquid medicine is atomized to form aerosol and blown to the user from the air outlet pipe 27 for inhalation by the user.

In view of the above-mentioned related art, the inventors considered that it was inconvenient to operate by opening the atomizing cup and filling the liquid medicine every time the atomizing treatment was performed.

Disclosure of Invention

In order to facilitate the operator to fill the liquid medicine into the atomizing cup, the application provides an atomizer.

An atomizer comprises an atomizer main machine for providing compressed gas and an atomizing cup for atomizing liquid medicine; the atomizing cup comprises a cup body, a compressed gas pipe penetrating through the bottom of the cup body and connected with the atomizer host, a sleeve sleeved on the outer side of the compressed gas pipe, a resisting part positioned above the compressed gas pipe and an air outlet pipe for discharging atomized liquid medicine, wherein an air jet is formed at one end of the compressed gas pipe, which faces the resisting part, of the compressed gas pipe, a liquid containing cavity for containing the liquid medicine is formed in the cup body, the sleeve and the resisting part are positioned in the cup body, a liquid suction groove is formed in the inner periphery of the sleeve, the lower end of the liquid suction groove is communicated with the liquid containing cavity, and the upper end of the liquid suction groove is close to the air jet; the atomizing cup also comprises a liquid pre-filling device arranged outside the cup body, wherein the liquid pre-filling device comprises a mounting cylinder arranged on the outer side of the cup body, at least two liquid medicine pipes for pre-filling liquid medicine and a liquid injection cover which is installed on one side of the mounting cylinder far away from the cup body in a sliding and rotating manner; the liquid medicine tube is detachably arranged in the placing cavity; the liquid medicine tube comprises a tube body for containing liquid medicine, a sealing piston for sliding sealing one end of the tube body and an elastic sealing mechanism for sealing the other end of the tube body, wherein the sealing piston is arranged in one end of the tube body facing the liquid injection cover in a sliding manner, the elastic sealing mechanism is arranged outside one end of the tube body, which is far away from the sealing piston, one end of the tube body facing the elastic sealing mechanism is provided with a flow outlet hole, and the outer side of the cup body is provided with a liquid inlet hole communicated with the placing cavity at the corresponding position of each placing cavity; the liquid injection cover comprises a cover plate for sealing the mounting cylinder and a cover ring which is connected with the cover plate and sleeved outside the mounting cylinder, and a push block for driving the sealing piston to axially slide is arranged on one side of the cover plate, which faces the liquid medicine pipe.

Through adopting above-mentioned technical scheme, the gas outlet of atomizer host computer links to each other with compressed gas pipe, and compressed gas who flows at a high speed in the compressed gas pipe is spouted from the jet to form a negative pressure region near the jet, the sleeve cover is established in compressed gas pipe outside, the one end and the liquid chamber intercommunication of holding of liquid groove, the other end of liquid groove is close to the jet. When the liquid medicine is atomized, the liquid medicine filled in the liquid holding cavity is sucked to the vicinity of the air nozzle under the action of the pressure difference at two ends of the liquid suction groove, and the liquid medicine is impacted by the resisting part under the wrapping of the air flow sprayed out of the air nozzle to form small liquid drops, and the small liquid drops are attached to the air flow in the cup body to form aerosol, so that the aerosol is sucked by a user through the air outlet pipe;

the mounting cylinder is fixedly arranged on the outer side of the cup body and is used for fixedly mounting the liquid medicine pipe; the sealing piston and the elastic sealing mechanism respectively seal the two ends of the tube body, so that the liquid medicine tube can be carried along with the atomizing cup, and liquid leakage is not easy to occur, and the use of operators is convenient; a pushing block for pushing the sealing piston to slide so as to fill the liquid medicine is arranged on the cover plate of the liquid injection cover, and when the pushing block stands still, the elastic sealing mechanism seals the outflow hole of the liquid medicine pipe; when the pushing block pushes the sealing piston to slide, the pressure of liquid in the pipe body is increased under the extrusion of the sealing piston, the elastic sealing mechanism is extruded, and the outflow hole is communicated with the liquid inlet so that the liquid medicine flows into the liquid containing cavity; when the liquid medicine is filled, the pushing block stops extruding the sealing piston, and the elastic sealing mechanism seals the outflow hole, so that atomized liquid medicine in the cup body is not easy to flow into the liquid medicine pipe from the liquid inlet hole, and the utilization efficiency of the liquid medicine is reduced;

the number of the liquid medicine pipes is at least two, and the number of the placing cavities on the mounting cylinder is the same as that of the liquid medicine pipes; the liquid medicine pipe can quantitatively preassemble liquid medicine, so that an operator can conveniently add the liquid medicine into the liquid containing cavity, and meanwhile, the preassembling device can also add the liquid medicine at least twice due to the arrangement of at least two liquid medicine pipes, so that the trouble of the operator in adding the liquid medicine is reduced.

Preferably, at least two circular arc-shaped clamping blocks are uniformly arranged on the inner circumference of the cover ring, a circle of clamping strips is arranged on the outer circumference of the mounting cylinder, and when the liquid injection cover and the mounting cylinder cover, the clamping strips are located on one side, facing the cover plate, of the clamping blocks.

By adopting the technical scheme, the clamping block is arc-shaped, so that the cover ring is conveniently clamped with the mounting cylinder; when the cover ring is installed on the outer side of the installation cylinder, the clamping strip limiting clamping blocks enable the cover ring not to be easily separated from the installation cylinder, meanwhile, the cover ring can rotate relative to the installation cylinder to adjust the pushing block to align any sealing piston, and the cover ring can also slide towards the direction close to the cup body to drive the sealing piston to extrude liquid medicine.

Preferably, the outer side of the mounting cylinder is provided with at least two positioning grooves with the extending direction parallel to the mounting axial direction, and the positioning grooves and the liquid medicine pipe are correspondingly provided with at least two positioning grooves which are uniformly distributed along the circumferential direction of the mounting cylinder; the clamping blocks correspond to the positioning grooves, and when the liquid injection cover rotates until the pushing block is aligned with any sealing piston, the sliding blocks slide into the positioning grooves.

Through adopting above-mentioned technical scheme, when the ejector pad aligns with arbitrary one sealed piston, the fixture block slides into corresponding constant head tank, and the extending direction of constant head tank is on a parallel with the axial of installation section of thick bamboo to when the fixture block slides along the constant head tank, the ejector pad promotes sealed piston along installation section of thick bamboo axial, is convenient for the operator from this and rotates the location that the notes liquid lid realized the ejector pad, and then the operator of being convenient for annotates the liquid medicine.

Preferably, a reset spring is sleeved outside the mounting cylinder, a circle of flange is circumferentially arranged on the outer side of the cover ring, one end of the reset spring abuts against the outer side of the cup body, and the other end of the reset spring abuts against the flange.

By adopting the technical scheme, the return spring is abutted between the flange and the outer side of the cup body, when an operator adds liquid medicine into the cup body, the liquid injection cover slides towards the direction close to the cup body, and the return spring is pressed; when the liquid medicine is filled, the operator releases the liquid injection cover, and the liquid injection cover slides in a direction away from the cup body under the drive of the reset spring until the initial position is restored, so that the automatic reset of the liquid injection cover is realized, and the operation of the operator is simplified.

Preferably, the placing cavity and the liquid medicine tube are cylindrical, an inner thread is arranged on the inner wall of the placing cavity, and an outer thread matched with the placing cavity is arranged on the outer side of the liquid medicine tube.

Through adopting above-mentioned technical scheme, place chamber and liquid medicine pipe and be cylindric, liquid medicine pipe and installation section of thick bamboo pass through threaded connection for liquid medicine pipe is closely with installation section of thick bamboo connection, easy dismounting.

Preferably, the placing cavity and the liquid medicine tube are fan-shaped, and the liquid medicine tube is in interference fit with the placing cavity.

By adopting the technical scheme, the placing cavity and the liquid medicine pipe are both fan-shaped, so that the space of the mounting cylinder is utilized to a greater extent, and the space occupied by the mounting cylinder is smaller when the medicine loading amount is the same, thereby reducing the volume of the atomizing cup and facilitating transportation and carrying; the liquid medicine pipe is connected with the mounting cylinder in a plugging manner, and the liquid medicine pipe is convenient to assemble and disassemble.

Preferably, the elastic sealing mechanism comprises a sealing tube communicated with the tube body, a sealing ball used for sealing the outflow hole, a thrust spring driving the sealing ball to be abutted against the edge of the orifice of the outflow hole and a spring seat for installing the thrust spring, the orifice of the outflow hole is arc-shaped matched with the sealing ball, the spring seat is fixedly installed in the sealing tube, and the thrust spring is connected between the spring seat and the sealing ball.

By adopting the technical scheme, the sealing tube is connected with the tube body, and the liquid medicine in the tube body can flow into the sealing tube under the drive of the sealing piston; the thrust spring is connected between the spring seat and the sealing ball, so that the sealing ball is driven to abut against the edge of the orifice of the outflow orifice to seal the outflow orifice, and the liquid medicine in the tube body is not easy to flow out of the outflow orifice when the sealing piston does not slide, thereby being convenient for transportation and carrying of the atomizing cup; the orifice of the outflow hole is arc-shaped and matched with the sealing ball, so that the sealing ball has better sealing effect on the outflow hole; when an operator presses the liquid injection cover, the sealing piston extrudes liquid medicine towards the direction of the elastic sealing mechanism, the sealing ball compresses the thrust spring under the extrusion of the liquid medicine and is separated from the outflow hole, and the liquid medicine can flow into the sealing pipe along the outflow hole and flow into the liquid containing cavity from the liquid inlet pipe; meanwhile, when the liquid medicine filling is completed, the thrust spring rebounds to drive the sealing ball to reset and seal the outflow hole, and aerosol formed after the liquid medicine in the cup body is atomized is not easy to flow into the liquid medicine pipe from the liquid inlet hole, so that the waste of the liquid medicine during atomization is reduced.

Preferably, the elastic sealing mechanism further comprises a guide rod, the guide rod penetrates through the thrust spring, a guide hole for sliding of the guide rod is formed in the spring seat, one end of the guide rod is connected with the sealing ball, and one end, far away from the sealing ball, of the guide rod penetrates through the guide hole.

Through adopting above-mentioned technical scheme, the one end of guide bar wears to establish in the guiding hole, and the other end of guide bar links to each other with the sealing ball, and the guide bar is suitable for along guiding hole axial slip under the direction effect of guiding hole to the sealing ball is close to or keeps away from the play discharge orifice along the straight line, makes the sealing ball more stable to the sealing of play discharge orifice from this.

Preferably, a holding block is arranged at one end of the guide rod, which is far away from the sealing ball, a groove is arranged at one side of the sealing piston, which is far away from the elastic sealing mechanism, and a hooking belt is arranged on the groove.

Through adopting above-mentioned technical scheme, the one end that the sealing ball was kept away from to the guide bar passes the guiding hole and is equipped with and holds the piece, and the operator pulls to hold the piece and drives the guide bar and pull open sealing ball from outflow hole to collude the area with the hook from the body other end and slide the sealing piston to keeping away from outflow hole direction and return to initial position, thereby be convenient for liquid medicine pipe complex charge liquid, improve the utilization ratio of liquid medicine pipe, save the cost.

Preferably, an air pipe for communicating with the outside atmosphere is further arranged in the cup body, and one end of the air pipe is sleeved outside the resisting part and the air nozzle.

By adopting the technical scheme, the cup body is internally provided with the air pipe used for communicating the outside atmosphere, the air pipe is used for introducing the outside air through the atmospheric port to balance the pressure in the cup body, and the pressure difference at the two ends of the liquid suction groove is maintained, so that the liquid medicine can be continuously sucked to the air nozzle for atomization; meanwhile, the air nozzle is positioned in the air pipe, so that the liquid medicine is not easy to scatter into the air pipe when the liquid medicine is filled, and the waste of the liquid medicine is reduced.

In summary, the present application has the following beneficial effects:

1. the liquid preassembling device is arranged outside the cup body of the atomizing cup and comprises at least two liquid medicine tubes fixedly filled with liquid medicine, and a pushing block on the liquid injection cover pushes a sealing piston of the liquid medicine tube to slide so as to discharge the liquid medicine from the liquid medicine tube into the liquid containing cavity, so that the quantitative filling of the liquid medicine is realized; meanwhile, the number of the liquid medicine pipes is at least two, and the liquid medicine can be added again by rotating the liquid injection cover to enable the push block to be aligned with different liquid medicine pipes, so that an operator can conveniently add the liquid medicine; an elastic sealing mechanism is arranged at one end of the tube body of the liquid medicine tube, which is far away from the liquid injection cover, and when liquid medicine is not injected, the elastic sealing mechanism seals the tube body, so that the liquid medicine in the tube body is not easy to flow out, the carrying and the transportation of the atomizer are convenient, and meanwhile, atomized aerosol is not easy to flow into the tube body, so that the utilization rate of the liquid medicine is improved;

2. according to the device, at least two clamping blocks are uniformly arranged on the inner side of the cover ring, a circle of clamping strips are circumferentially arranged on the outer side of the mounting cylinder, the clamping blocks and the clamping strips are matched to enable the cover ring not to easily fall off from the mounting cylinder, meanwhile, a limiting groove corresponding to the clamping blocks is axially formed in the periphery of the mounting cylinder, when the clamping blocks rotationally slide into the limiting groove, the pushing block corresponds to any sealing piston, so that the positioning of the pushing block is realized, and a user can conveniently fill liquid medicine;

3. according to the automatic liquid injection cover pressing device, the circle of flange is circumferentially arranged on the outer side of the cover ring, the return spring is abutted between the flange and the outer side of the cup body, and the return spring can automatically drive the liquid injection cover to return after the liquid injection cover is pressed by a user, so that the operation of an operator is simplified.

Drawings

Fig. 1 is a schematic diagram of an atomizing cup in the background art.

Fig. 2 is a schematic diagram of the connection of the atomizer body and the atomizer cup according to example 1 of the present application.

Fig. 3 is a schematic view of an atomizing cup according to example 1 of the present application.

Fig. 4 is a cross-sectional view of the atomizing cup of example 1 of the present application.

Fig. 5 is an enlarged view at a in fig. 4 of embodiment 1 of the present application.

Fig. 6 is a schematic view of a mounting barrel of embodiment 1 of the present application.

Fig. 7 is a cross-sectional view of the medical fluid tube of example 1 of the present application.

Fig. 8 is a schematic view of the pouring cap of example 1 of the present application.

Fig. 9 is a cross-sectional view of the liquid suction tank and the stopper portion of embodiment 1 of the present application.

Fig. 10 is a schematic view of the abutment and sleeve of embodiment 1 of the present application.

Fig. 11 is a schematic view of the mask installation of embodiment 1 of the present application.

Fig. 12 is a schematic view of a prefilling device according to a second embodiment of the present application.

Reference numerals illustrate:

1. an atomizer host; 11. an air inlet; 12. an air outlet; 13. an air filter element; 2. an atomizing cup; 21. a cup body; 211. an upper case; 2111. a flow chamber; 2115. a liquid inlet hole; 212. a lower case; 2121. a liquid containing cavity; 2122. a support leg; 213. a lower spring groove; 22. a pre-filling device; 221. a mounting cylinder; 2211. a placement cavity; 2212. clamping strips; 2213. a positioning groove; 2214. a clamping plate; 222. a liquid medicine tube; 2221. a tube body; 22211. a discharge orifice; 2222. a sealing piston; 22221. a hard disk; 22222 rubber boot; 22223. a groove; 22224. hooking the belt; 22231. sealing the tube; 22232. a spring seat; 22233. a thrust spring; 22234. a sealing ball; 22235. a guide rod; 22236. a grip block; 22237. a guide hole; 223. a liquid injection cover; 2231. a cover plate; 22311. a pushing block; 2232. a cover ring; 22321. a clamping block; 22322. a flange; 22323. a baffle ring; 22324. a spring groove is formed; 224. a return spring; 23. a compressed gas pipe; 231. a straight pipe section; 232. a cone pipe section; 2321. an air jet 24, a sleeve; 241. a support block; 242. a liquid suction tank; 25. a resisting part; 251. a connecting plate; 252. a star-shaped baffle; 253. a baffle column; 254. a limiting plate; 26. an air tube; 261. an atmospheric port; 27. an air outlet pipe; 28. a ball connecting pipe; 29. a face mask; 3. and (3) a hose.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to fig. 1 to 11 and the embodiments.

Example 1:

the embodiment 1 of the application discloses atomizer, refer to fig. 2, and the atomizer is including being used for providing compressed gas's atomizer host computer 1 and being used for atomizing the atomizing cup 2 of liquid medicine, and atomizer host computer 1 links to each other with atomizing cup 2 through hose 3 and provides the compressed gas that is used for atomizing the liquid medicine for atomizing cup 2.

The atomizer main unit 1 is an air compressor, and comprises an air inlet 11 for sucking air and an air outlet 12 for discharging compressed air. The atomizer main machine is connected with a hose 3 at an air outlet 12 to output compressed air.

Referring to fig. 3 and 4, the atomizing cup 2 includes a cup body 21, a prefilling device 22 for prefilling a medicinal liquid mounted outside the cup body 21, a compressed gas pipe 23 penetrating through the bottom of the cup body 21, a sleeve 24 fitted over the compressed gas pipe 23, a blocking portion 25 located above the compressed gas pipe 23, an air pipe 26 fitted over the blocking portion 25 and the top of the compressed gas pipe 23, and an air outlet pipe 27 connected above the cup body 21 for discharging an aerosol formed by atomization.

The cup 21 includes an upper shell 211 and a lower shell 212 that are snap-fit. The lower housing 212 has a liquid chamber 2121 for containing liquid medicine formed therein, and three legs 2122 are provided outside the lower housing 212 for the atomizing cup 2 to be vertically placed when not in use. A flow chamber 2111 through which the aerosol flows is formed inside the upper case 211, and an air outlet pipe 27 is connected above the upper case 211 and communicates with the flow chamber 2111. The upper side wall of the flow chamber 2111 is provided with an inclined flow guiding surface, and aerosol formed by atomizing the liquid medicine flows into the air outlet pipe 27 after being guided by the flow guiding surface. A convex ring sleeved outside the air outlet pipe 27 is arranged outside the upper part of the upper shell 211, and a ring-shaped cavity is formed between the convex ring and the outer side of the air outlet pipe 27.

Referring to fig. 4 and 5, the prefilling device 22 includes a mounting cylinder 221 fixedly mounted on the upper case 211, a liquid medicine tube 222 for prefilling liquid medicine, and a liquid injection cap 223 for driving the liquid medicine tube 222 to discharge the liquid medicine. The liquid medicine pipe 222 is installed in the installation cylinder 221, and the liquid injection cover 223 is slidably and rotatably installed at a side of the installation cylinder 221 away from the cup body 21 to close the opening of the installation cylinder 221.

Referring to fig. 5 and 6, the mounting cylinder 221 is integrally injection molded with the cup 21. The mounting cylinder 221 is provided with placing cavities 2211 for placing the liquid medicine tubes 222 along the axial direction, the number of the placing cavities 2211 is the same as that of the liquid medicine tubes 222, and the placing cavities 2211 are uniformly distributed along the circumferential direction of the mounting cylinder 221. The cup 21 is provided with liquid inlet holes 2115 at positions corresponding to each of the placing cavities 2211, and each liquid inlet hole 2115 is communicated with the corresponding placing cavity 2211. The liquid medicine in the liquid medicine tube 222 can flow into the liquid holding cavity 2121 from the liquid inlet 2115 through the placing cavity 2211, thereby facilitating the filling of the liquid medicine by an operator.

Referring to fig. 5 and 7, the medical fluid tube 222 includes a tube body 2221 for containing medical fluid, a sealing piston 2222 that slides the sealing tube body 2221 toward one end of the filling cap 223, and an elastic sealing mechanism that seals one end of the tube body 2221 away from the filling cap 223. The number of the liquid medicine pipes 222 is at least two, so that the trouble of the operator in filling the liquid medicine for a plurality of times is reduced. In the present embodiment, three medical fluid tubes 222 and three placement chambers 2211 are specifically shown.

The tube 2221 is a cylindrical container with a bottom at one end, the bottom of the tube 2221 is connected with the elastic sealing mechanism, and the bottom of the tube 2221 is provided with an outflow hole 22211 for the liquid medicine to flow out. The volume of the tube body 2221 can be designed according to the quantitative medication, and each liquid medicine tube 222 is preloaded with a dosage of one medication, thereby being convenient for operators to quantitatively add the medicine liquid.

The sealing piston 2222 includes a hard disk 22221 made of plastic and a rubber sleeve 22222 fitted over the hard disk 22221. The rubber sleeve 22222 abuts against the inner wall of the pipe body 2221 to seal the pipe body 2221, and the hard disc 22221 is used for supporting the rubber sleeve 22222, so that the rubber sleeve 22222 is not easy to cause sealing failure due to deformation.

Referring to fig. 7, the elastic sealing mechanism includes a sealing tube 22231 sealingly connected to the tube body 2221, a spring seat 22232 fixed in the sealing tube 22231, a thrust spring 22233 mounted on the spring seat 22232, and a sealing ball 22234 for sealing the outflow hole 22211. The thrust spring 22233 abuts between the spring seat 22232 and the sealing ball 22234, driving the sealing ball 22234 against the orifice rim of the flow bore 22211 to seal the tube 2221. Therefore, the sealing piston 2222 and the sealing ball 22234 jointly seal the liquid medicine in the tube body 2221, so that the liquid medicine tube 222 is not easy to leak out in the carrying and transporting processes, and the liquid medicine tube 222 is convenient to transport alone or carry along with the atomizing cup 2 after being preloaded with the liquid medicine.

Wherein, the seal tube 22231 periphery is equipped with the external screw thread, and the inner wall that places chamber 2211 and is close to cup 21 one end is equipped with the internal screw thread, seal tube 22231 with place chamber 2211 inner wall threaded connection, make the liquid medicine pipe 222 and install a section of thick bamboo 221's connection stable and convenient from this.

The orifice of the outflow hole 22211 facing the sealing ball 22234 side is arc-shaped and is matched with the sealing ball 22234, and the sealing ball 22234 can be clamped into the orifice of the outflow hole 22211, so that the contact area between the sealing ball 22234 and the outflow hole 22211 is increased, and the sealing effect of the sealing ball 22234 on the outflow hole 22211 is enhanced.

Referring to fig. 5, 6 and 8, the filling cap 223 includes a cover plate 2231 for covering the opening of the mounting cylinder 221 and a cap ring 2232 coupled to a side of the cover plate 2231 facing the mounting cylinder 221. The cover ring 2232 is sleeved outside the mounting cylinder 221 and can rotate and slide relative to the mounting cylinder 221. The cover plate 2231 is eccentrically provided with a push block 22311, and the push block 22311 is cylindrical and is matched with the tube body 2221, i.e., the push block 22311 can be inserted into the tube body 2221. The distance from the axis of the push block 22311 to the center of the cover plate 2231 is the same as the distance from the axis of the liquid medicine tube 222 to the axis of the mounting cylinder 221, so that as the cover plate 2231 is rotated, the push block 22311 rotates with the cover plate 2231 and is aligned with the sealing piston 2222 of each liquid medicine tube 222 in turn.

When the push block 22311 is aligned with any one of the seal pistons 2222, the operator presses the cover plate 2231, the filling cap 223 slides in a direction approaching the cup body 21 relative to the mounting cylinder 221, the push block 22311 abuts against the seal piston 2222 and pushes the seal piston 2222 to slide in a direction approaching the cup body 21, and the seal piston 2222 presses the liquid medicine in the tube body 2221, so that the pressure in the tube body 2221 increases. The sealing ball 22234 is pressed by the chemical liquid to compress the thrust spring 22233, the sealing ball 22234 is separated from the outflow hole 22211, and the chemical liquid flows from the outflow hole 22211 into the sealing tube 22231. The chemical liquid in the seal tube 22231 flows into the cup body 21 from the liquid inlet 2115, and the chemical liquid is added.

Wherein, three clamping blocks 22321 are uniformly arranged on the inner circumference of one end of the cover ring 2232, which is far away from the cover plate 2231. The mounting cylinder 221 is provided with a ring-shaped clip 2212 on the outer circumference of one end facing the cover plate 2231. When the filling cap 223 is mounted on the mounting cylinder 221, the clip 2212 is located at a side of the clip 22321 facing the cover plate 2231, and the clip 22321 abuts against the outer circumferential side of the mounting cylinder 221. When the liquid filling cap 223 slides in a direction away from the cup body 21, the clamping ring can prop against the clamping block 22321, so that the liquid filling cap 223 is not easy to be separated from the clamping block 22321. The side of the clamping block 22321, which abuts against the clamping strip 2212, is in a circular arc shape, so that the clamping installation of the liquid injection cover 223 and the installation cylinder 221 is facilitated.

In addition, the outer circumference of the mounting cylinder 221 is provided with positioning grooves 2213 extending in a direction parallel to the axial direction of the mounting cylinder 221, the number of the positioning grooves 2213 is the same as that of the clamping blocks 22321, and the positioning grooves 2213 are uniformly distributed along the circumferential direction of the mounting cylinder 221. When the operator rotates the cap 223 and the push block 22311 is aligned with the sealing piston 2222 of any one of the fluid lines 222, the latch block 22321 slides into one of the positioning grooves 2213. When the push block 22311 is rotated into alignment with the sealing piston 2222 of the other medical fluid tube 222, the clamp block 22321 slides from one of the detents 2213 into the other detent 2213. When the operator presses the cap 223 to fill the cup 21 with the chemical, the clamp block 22321 slides along the positioning groove 2213 in a direction approaching the cup 21. Thereby facilitating operator alignment of the push block 22311 and the sealing piston 2222 for filling with medical fluid.

The outer circumference of the end of the cover ring 2232 near the cup 21 is provided with a ring flange 22322. An annular upper spring groove 22324 is formed in the flange 22322 on the side facing the cup 21 in the circumferential direction. A lower spring groove 213 surrounding the outer side of the mounting cylinder 221 is formed on the outer side of the cup body 21, and a return spring 224 is abutted between the upper spring groove 22324 and the groove wall of the lower spring groove 213. When the operator presses the pouring cap 223, the pouring cap 223 presses the return spring 224; after the liquid medicine is filled, the operator releases the liquid injection cover 223, and the liquid injection cover 223 automatically returns to the initial position under the drive of the reset spring 224, so that the operation of the operator during liquid injection is simplified.

Referring to fig. 7, a guide bar 22235 is connected to the sealing ball 22234, and the guide bar 22235 is inserted into the thrust spring 22233. The spring seat 22232 has a guide hole 22237, one end of the guide rod 22235 passes through the guide hole 22237, and the guide rod 22235 can slide relative to the guide hole 22237. The guide bar 22235 thus guides the sealing ball 22234 and the thrust spring 22233 spring, so that the sealing ball 22234 seals the outflow hole 22211 more stably.

The end of the guide bar 22235 remote from the sealing ball 22234 is threaded with a grip block 22236. A groove 22223 is formed on the side of the hard disk 22221 facing the liquid filling cover 223, and a hooking strip 22224 is fixedly arranged outside the groove 22223. After the filling of the liquid medicine in the tube body 2221 is completed, when the liquid medicine is required to be refilled into the tube body 2221, an operator pulls the holding block 22236 to pull the sealing ball 22234 away from the outflow hole 22211, hooks the hooking belt 22224 to pull and reset the sealing piston 2222 to one end of the tube body 2221 far away from the outflow hole 22211, and uses tools such as a syringe to fill the liquid medicine into the tube body 2221. Thereby enabling the liquid medicine tube 222 to be reused and reducing the use cost of the liquid medicine tube 222.

Referring to fig. 9, the compressed gas pipe 23 includes a straight pipe section 231 located outside the cup 21 and a taper pipe section 232 located inside the cup 21. The straight pipe section 231 is positioned outside the cup body 21, the taper pipe section 232 is positioned in the liquid containing cavity 2121, and the taper pipe section 232 protrudes upwards along the bottom wall of the cup body 21 to spray compressed gas to atomize the liquid medicine.

The pipe diameter of the taper pipe section 232 gradually decreases along the direction away from the bottom wall of the cup body 21, so that the gas flow rate in the taper pipe section 232 is continuously increased. The end of the cone section away from the bottom wall of the cup 21 is provided with a gas nozzle 2321, and the high-speed air flow in the cone section 232 can be ejected upwards through the gas nozzle 2321.

The sleeve 24 is a conical cylinder adapted to the conical tube section 232, i.e. the sleeve 24 may be sleeved outside the conical tube section 232. The lower end of the sleeve 24 is provided with a plurality of supporting blocks 241 at uniform intervals, and the supporting blocks 241 are abutted against the bottom wall of the cup body 21 so as to support the sleeve 24. Two liquid suction grooves 242 are formed in the inner side wall of the sleeve 24 along the bus direction, one end of each liquid suction groove 242 is located in the liquid containing cavity 2121, and the other end of each liquid suction groove 242 is located near the air spraying port 2321.

When a gas flow flowing at a high speed is ejected from the gas ejection port 2321, a negative pressure region is formed in the vicinity of the gas ejection port 2321 due to a large gas flow rate in the vicinity of the gas ejection port 2321. So that the pressure at the upper end of the liquid suction groove 242 is smaller than the pressure at the lower end of the liquid suction groove 242. The chemical liquid in the liquid containing chamber 2121 is sucked into the liquid suction groove 242 from the gap between the branch pieces 241, and is sucked into the vicinity of the air nozzle 2321 through the liquid suction groove 242 and blown out upward under the entrainment of the high-speed air flow.

Referring to fig. 9 and 10, the blocking portion 25 includes a connection plate 251 connected to the outside of the sleeve 24, a star-shaped baffle 252 connected to the connection plate 251 and located above the gas nozzles 2321, a blocking column 253 connected to a side of the star-shaped baffle 252 facing the gas nozzles 2321, and a limiting plate 254 horizontally connected to a side of the baffle. The sleeve 24, the connecting plate 251, the star-shaped baffle 252, the retaining post 253 and the limiting plate 254 are integrally injection molded.

The blocking column 253 is opposite to the air spraying opening 2321, and high-speed air flow which is sprayed by the air spraying opening 2321 and is wrapped with the liquid medicine is impacted on the blocking column 253 to crush the liquid medicine into small particles, the crashed liquid medicine is attached to the air flow in the cup body 21 to form aerosol, and the aerosol flows to the air outlet pipe 27 in the flow chamber 2111 to be discharged. The star-shaped baffle 252 is blocked above the blocking column 253 and is used for blocking the liquid medicine which flies upwards and enabling the liquid medicine to flow back into the liquid containing cavity 2121 for re-atomization.

Referring to fig. 4 and 9, one end of the air tube 26 is sleeved outside the star-shaped baffle 252, the stopper 253, and the air ejection port 2321. The end of the air tube 26 remote from the star baffle 252 has an atmospheric port 261 communicating with the annular cavity. When the liquid medicine is atomized, external air flows into the air pipe 26 from the air port 261, and flows into the cup body 21 through the air pipe 26 to compensate air in the cup body 21 and balance pressure.

In addition, the end of the air tube 26, which is close to the star-shaped baffle 252, abuts against the upper side of the limiting plate 254, so that the sleeve 24 and the resisting part 25 are limited between the air tube 26 and the bottom of the cup body 21, the sleeve 24 and the resisting part 25 are not easy to slide relative to the cone tube section 232, and the effect of atomizing the liquid medicine is more stable.

Referring to fig. 11, a ball socket 28 is connected to an end of the air outlet pipe 27 remote from the upper case 211, and a mask 29 is ball-hinged to the air outlet pipe 27 through the ball socket 28. The operator can adjust the mask 29 to a proper angle by rotating the mask 29 when wearing the mask 29 for atomization treatment.

The implementation principle of embodiment 1 of the present application is:

when filling the liquid medicine, the operator rotates the filling cap 223 so that the push block 22311 is aligned with the sealing piston 2222, presses the filling cap 223, and the push block 22311 pushes the sealing piston 2222 to add the liquid medicine in the liquid medicine tube 222 into the liquid-containing chamber 2121. After the filling of the liquid medicine is completed, the operator releases the filling cap 223, and the return spring 224 pushes the filling cap 223 to return. When the liquid medicine is to be filled again, the operator rotates the liquid medicine filling cap 223 so that the push block 22311 is aligned with the other seal piston 2222, and presses the liquid medicine filling cap 223 to fill the liquid medicine.

When the liquid medicine tube 222 is installed, the liquid medicine tube 222 pre-filled with liquid medicine is placed in the placing cavity 2211, the liquid medicine tube 222 is rotated to be in threaded connection with the liquid medicine tube 222 and the installation cylinder 221, and then the liquid injection cover 223 is clamped and covered outside the installation cylinder 221 to seal the installation cylinder 221.

When the liquid medicine is atomized, the air nozzle 2321 sprays high-speed air flow upwards, the liquid medicine sucked by the liquid suction groove 242 impacts the baffle 253 along with the high-speed air flow and is broken into fine particles, and the liquid medicine particles are attached to the air flow to form aerosol and are discharged from the air outlet pipe 27 for being sucked by an operator.

Example 2:

example 2 of the present application differs from example 1 in that:

referring to fig. 12, the mounting cylinder 221 is a hollow cylinder, and three connecting clamping plates 2214 are disposed in the mounting cylinder 221, and angles between the three clamping plates 2214 are the same. Three clamping plates 2214 divide the inner cavity of the mounting cylinder 221 into the same three sector-shaped placing cavities 2211. The shape of the liquid medicine tube 222 is a sector adapted to the placing cavity 2211, that is, the liquid medicine tube 222 can be inserted into the placing cavity 2211, and the liquid medicine tube 222 is in interference fit with the placing cavity 2211. Thereby effectively utilizing the space in the mounting cylinder 221, reducing the space occupied by the mounting cylinder 221, and facilitating transportation and carrying of the atomizer.

The implementation principle of the second embodiment of the application is as follows:

when the chemical liquid tube 222 is mounted, the operator inserts the chemical liquid tube 222 preloaded with the chemical liquid into the placing cavity 2211, and after the chemical liquid tube 222 and the mounting tube 221 are inserted, the filling cap 223 is engaged with the mounting tube 221 to close the mounting tube 221.

The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.

Claims

1. An atomizer comprises an atomizer main machine (1) for providing compressed gas and an atomizing cup (2) for atomizing liquid medicine; the atomizing cup (2) comprises a cup body (21), a compressed gas pipe (23) penetrating through the bottom of the cup body (21) and connected with the atomizer main machine (1), a sleeve (24) sleeved on the outer side of the compressed gas pipe (23), a resisting part (25) positioned above the compressed gas pipe (23) and an air outlet pipe (27) for discharging atomized liquid medicine, wherein an air jet (2321) is formed in one end of the compressed gas pipe (23) facing the resisting part (25), a liquid containing cavity (2121) for containing liquid medicine is formed in the cup body (21), the sleeve (24) and the resisting part (25) are both positioned in the cup body (21), a liquid suction groove (242) is formed in the inner periphery of the sleeve (24), the lower end of the liquid suction groove (242) is communicated with the liquid containing cavity (2121), and the upper end of the liquid suction groove (242) is close to the air jet (2321); the atomizing cup (2) is characterized by further comprising a liquid preassembling device (22) arranged outside the cup body (21), wherein the liquid preassembling device (22) comprises a mounting cylinder (221) arranged on the outer side of the cup body (21), at least two liquid medicine pipes (222) for preassembling liquid medicine and a liquid injection cover (223) which is installed on one side, far away from the cup body (21), of the mounting cylinder (221) in a sliding and rotating mode; the mounting cylinder (221) is provided with a placement cavity (2211) corresponding to the liquid medicine pipe (222) along the axial direction, the placement cavities (2211) are uniformly distributed along the circumferential direction of the mounting cylinder (221), and the liquid medicine pipe (222) is detachably arranged in the placement cavity (2211); the liquid medicine tube (222) comprises a tube body (2221) for containing liquid medicine, a sealing piston (2222) for sliding sealing one end of the tube body (2221) and an elastic sealing mechanism for sealing the other end of the tube body (2221), the sealing piston (2222) is slidably installed in one end of the tube body (2221) facing the liquid injection cover (223), the elastic sealing mechanism is installed outside one end of the tube body (2221) far away from the sealing piston (2222), an outlet hole (22211) is formed in one end of the tube body (2221) facing the elastic sealing mechanism, and a liquid inlet hole (2115) communicated with the placing cavity (2211) is formed in the corresponding position of each placing cavity (2211) on the outer side of the cup body (21); the liquid injection cover (223) comprises a cover plate (2231) for closing the mounting cylinder (221) and a cover ring (2232) which is connected with the cover plate (2231) and sleeved outside the mounting cylinder (221), and a pushing block (22311) for driving the sealing piston (2222) to axially slide is arranged on one side of the cover plate (2231) facing the liquid medicine pipe (222).

2. The atomizer according to claim 1, wherein at least two circular arc-shaped clamping blocks (22321) are uniformly arranged on the inner side circumference of the cover ring (2232), a circle of clamping strips (2212) are circumferentially arranged on the outer side of the mounting cylinder (221), and when the liquid injection cover (223) and the mounting cylinder (221) are covered, the clamping strips (2212) are located on one side of the clamping blocks (22321) facing the cover plate (2231).

3. The atomizer according to claim 2, wherein positioning grooves (2213) with the extending direction parallel to the axial direction of the mounting cylinder (221) are formed on the outer side of the mounting cylinder (221), at least two positioning grooves (2213) are formed corresponding to the liquid medicine tube (222), and at least two positioning grooves (2213) are uniformly distributed along the circumferential direction of the mounting cylinder (221); the clamping block (22321) corresponds to the positioning groove (2213), and when the liquid injection cover (223) rotates until the pushing block (22311) is aligned with any sealing piston (2222), the clamping block (22321) slides into the positioning groove (2213).

4. An atomizer according to claim 1, wherein the mounting cylinder (221) is externally sleeved with a return spring (224), a ring of flange (22322) is circumferentially arranged on the outer side of the cover ring (2232), one end of the return spring (224) abuts against the outer side of the cup body (21), and the other end of the return spring (224) abuts against the flange (22322).

5. The atomizer according to claim 1, wherein the placement cavity (2211) and the liquid medicine tube (222) are both cylindrical, an inner wall of the placement cavity (2211) is provided with an inner thread, and an outer thread adapted to the placement cavity (2211) is provided on an outer side of the liquid medicine tube (222).

6. The nebulizer of claim 1, wherein the placement cavity (2211) and the liquid medicine tube (222) are fan-shaped, and the liquid medicine tube (222) is in interference fit with the placement cavity (2211).

7. An atomizer according to claim 1, characterized in that the elastic sealing means comprises a sealing tube (22231) communicating with the tube body (2221), a sealing ball (22234) for sealing the outflow hole (22211), a thrust spring (22233) driving the sealing ball (22234) to abut against the orifice edge of the outflow hole (22211), and a spring seat (22232) for mounting the thrust spring (22233), the orifice of the outflow hole (22211) is arc-shaped to fit the sealing ball (22234), the spring seat (22232) is fixedly mounted in the sealing tube (22231), and the thrust spring (22233) is connected between the spring seat (22232) and the sealing ball (22234).

8. The atomizer according to claim 7, wherein the elastic sealing mechanism further comprises a guide rod (22235), the guide rod (22235) is arranged in the thrust spring (22233) in a penetrating manner, a guide hole (22237) for sliding the guide rod (22235) is formed in the spring seat (22232), one end of the guide rod (22235) is connected with the sealing ball (22234), and one end of the guide rod (22235) away from the sealing ball (22234) penetrates through the guide hole (22237).

9. The atomizer according to claim 8, wherein a grip block (22236) is provided at an end of the guide rod (22235) remote from the sealing ball (22234), a groove (22223) is provided at a side of the sealing piston (2222) remote from the elastic sealing mechanism, and a hooking strip (22224) is provided on the groove (22223).

10. An atomizer according to claim 1, characterized in that an air pipe (26) for communicating with the outside atmosphere is further provided in the cup (21), and one end of the air pipe (26) is sleeved outside the resisting part (25) and the air nozzle (2321).