CN115089824A

CN115089824A - Atomizer

Info

Publication number: CN115089824A
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: 2022-09-23
Anticipated expiration: 2042-06-15
Also published as: CN115089824B

Abstract

The present application relates to the field, and in particular, to an atomizer, which includes an atomizer host for providing compressed gas, an atomizing cup for atomizing a liquid medicine, and a liquid pre-filling device disposed outside the cup, wherein a liquid containing cavity for containing the liquid medicine is formed in the cup, the liquid pre-filling device includes an installation cylinder installed on an outer side of the cup, at least two liquid medicine pipes for pre-filling the liquid medicine, and a liquid filling cover slidably and rotatably installed on one side of the installation cylinder away from the cup; the installation section of thick bamboo along the axial seted up with the chamber of placing that the liquid medicine pipe corresponds, set up on the cup with place the feed liquor hole of chamber intercommunication, place the chamber edge installation section of thick bamboo circumference is evenly arranged, the liquid medicine pipe is installed place the intracavity, liquid medicine pipe both ends are sealed through sealing piston and elastic sealing mechanism, it covers to be equipped with the ejector pad that is used for promoting sealing piston slip filling liquid medicine to annotate the liquid. The liquid medicine atomizing cup has the effect of bringing convenience to an operator to fill liquid medicine into the atomizing cup.

Description

Atomizer

Technical Field

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

Background

An atomizer is a medical device for atomizing test solutions such as saline, water, drug solutions, vaccines, etc. into aerosol for inhalation by a user to treat diseases. The atomizers include various types such as ultrasonic atomizers and air compression atomizers. The air compression type atomizer has good clinical effect and convenient operation, and is widely used.

The current air compression type atomizer, referring to fig. 1, includes an atomizer main body 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 the bottom of the cup body 21, a resisting part 25 positioned 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 and used for containing liquid medicine is formed in the cup body 21, and a liquid suction groove 242 communicated with the liquid containing cavity 2121 is formed on the peripheral side of the compressed gas pipe 23. In use, the operator opens the atomizing cup to inject the liquid medicine into the liquid chamber 2121, and the compressed gas flowing at a high speed is ejected from the compressed gas pipe 23 toward the opening at the one end of the stopper 25. According to the Bernoulli principle, the pressure is small where the flow velocity of the fluid is large, thereby forming a negative pressure region around the opening of the compressed gas pipe 23. Therefore, the liquid suction tank 242 sucks the liquid medicine in the liquid containing cavity 2121 to the vicinity of the upper opening of the compressed gas pipe 23 under the action of the pressure difference between the two ends, and the sprayed gas flow carries the liquid medicine to collide with the resisting part 25 so that the liquid medicine is atomized to form aerosol which is blown to the user from the gas outlet pipe 27 for the user to inhale.

In view of the above-mentioned related art, the inventor believes that it is inconvenient to operate because the atomizing cup needs to be opened and the liquid medicine needs to be filled in each time of the aerosol treatment.

Disclosure of Invention

In order to facilitate an operator to fill 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 outside the compressed gas pipe, a resisting part positioned above the compressed gas pipe and an air outlet pipe for discharging atomized liquid medicine, wherein one end of the compressed gas pipe, facing the resisting part, is provided with an air jet, 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, the inner periphery of the sleeve is provided with a liquid suction groove, 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 further comprises a liquid pre-filling device arranged outside the cup body, wherein the liquid pre-filling device comprises a mounting barrel mounted on the outer side of the cup body, at least two liquid medicine pipes used for pre-filling liquid medicine and a liquid filling cover mounted on one side, far away from the cup body, of the mounting barrel in a sliding and rotating mode; the mounting cylinder is axially provided with a placing cavity corresponding to the medicine liquid pipe, the placing cavity is uniformly distributed along the circumferential direction of the mounting cylinder, and the medicine liquid pipe is detachably mounted in the placing cavity; the liquid medicine tube comprises a tube body for containing liquid medicine, a sealing piston for slidably sealing one end of the tube body and an elastic sealing mechanism for sealing the other end of the tube body, the sealing piston is slidably mounted in one end, facing the liquid injection cover, of the tube body, the elastic sealing mechanism is mounted outside one end, far away from the sealing piston, of the tube body, an outflow hole is formed in one end, facing the elastic sealing mechanism, of the tube body, and a liquid inlet hole communicated with the placing cavities is formed in the position, corresponding to each placing cavity, of the outer side of the cup body; annotate the liquid lid including being used for sealing the apron of installation section of thick bamboo and with the apron links to each other and the cover is established the outer cover ring of installation section of thick bamboo, the apron orientation one side of liquid medicine pipe is provided with one and is used for the drive sealed piston axial sliding's ejector pad.

Through adopting above-mentioned technical scheme, the gas outlet of atomizer host computer links to each other with the compressed gas pipe, and the intraductal high-speed compressed gas that flows of compressed gas spouts from the jet orifice to near the jet orifice form a negative pressure region, the sleeve cover is established in the compressed gas pipe outside, the one end and the appearance liquid chamber intercommunication of suction groove, the other end in suction groove is close to the jet orifice. When the liquid medicine is atomized, the liquid medicine filled in the liquid containing cavity is sucked to the position near the air jet under the action of the pressure difference at the two ends of the liquid suction groove, and is collided with the resisting part under the wrapping of the airflow sprayed by the air jet to form small liquid drops, and the small liquid drops are attached to the airflow in the cup body to form aerosol which 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 tube; the sealing piston and the elastic sealing mechanism respectively seal two ends of the tube body, so that the liquid medicine tube can be carried along with the atomizing cup without liquid leakage, and the use by an operator is facilitated; a cover plate of the liquid injection cover is provided with a push block for pushing the sealing piston to slide so as to inject liquid medicine, and when the push block is in standing, the elastic sealing mechanism seals the outflow hole of the liquid medicine pipe; when the push 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 flow outlet hole is communicated with the liquid inlet hole so that liquid medicine flows into the liquid accommodating cavity; after the liquid medicine is filled, the push block stops extruding the sealing piston, and the elastic sealing mechanism seals the outflow hole, so that the 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 medicine liquid tubes is at least two, and the number of the placing cavities on the mounting cylinder is the same as that of the medicine liquid tubes; the liquid medicine can be installed in advance to the ration in liquid medicine pipe, and the operator of being convenient for adds the dress liquid medicine to holding the liquid intracavity, and the setting of two at least liquid medicine pipes makes the pre-installation also install twice liquid medicine additional simultaneously, has reduced the trouble when the operator installs the liquid medicine additional from this.

Preferably, at least two arc-shaped clamping blocks are uniformly arranged on the inner side of the cover ring in the circumferential direction, a circle of clamping strips is arranged on the outer side of the installation cylinder in the circumferential direction, and when the liquid injection cover is covered by the installation cylinder, 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 in an arc shape, so that the cover ring and the mounting cylinder are conveniently clamped; when the cover ring is installed in the installation cylinder outside, the spacing fixture block of card strip makes the cover ring be difficult for breaking away from the installation cylinder, and the cover ring can rotate relative to the installation cylinder simultaneously and align arbitrary sealed piston with the adjustment ejector pad, and the cover ring also can slide in the direction that is close to the cup and extrude the liquid medicine with the drive sealed piston.

Preferably, the outer side of the mounting cylinder is provided with at least two positioning grooves, the extending direction of which is parallel to the mounting axial direction, the positioning grooves and the medicine liquid pipe are correspondingly arranged, and the at least two positioning grooves are uniformly arranged along the circumferential direction of the mounting cylinder; the fixture block corresponds to the positioning groove, and when the liquid injection cover rotates to the position where the push block is aligned with any sealing piston, the slide block slides into the positioning groove.

Through adopting above-mentioned technical scheme, when ejector pad and arbitrary one sealed piston align, the fixture block slided 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 slided along the constant head tank, the ejector pad promoted sealed piston along installation section of thick bamboo axial, and the operator of being convenient for from this rotates the location that annotates the liquid lid and realize the ejector pad, and then the operator of being convenient for annotates the liquid medicine.

Preferably, the mounting cylinder is sleeved with a return spring, a circle of flange is circumferentially arranged on the outer side of the cover ring, one end of the return spring abuts against the outer side of the cup body, and the other end of the return 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 tightly; when the liquid medicine is filled, the operator loosens the liquid injection cover, and the liquid injection cover slides towards the direction far away from the cup body under the driving of the return spring until the initial position is recovered, so that the automatic reset of the liquid injection cover is realized, and the operation of the operator is simplified.

Preferably, place the chamber with the liquid medicine pipe is cylindricly, it is equipped with the internal thread to place the intracavity wall, the liquid medicine outside of tubes be equipped with place the external screw thread of chamber adaptation.

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

Preferably, place the chamber with the medicine liquid pipe is fan-shaped, medicine liquid pipe with place chamber interference fit.

By adopting the technical scheme, the placing cavity and the liquid medicine pipe are both in a fan shape, 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 is loaded, thereby reducing the volume of the atomizing cup and facilitating transportation and carrying; the liquid medicine pipe is connected with the installation cylinder in an inserting way, and the liquid medicine pipe is convenient to disassemble and assemble.

Preferably, the elastic sealing mechanism comprises a sealing pipe communicated with the pipe body, a sealing ball used for sealing the outflow hole, a driving device, a thrust spring abutted against the orifice edge of the outflow hole and a spring seat used for mounting the thrust spring, wherein the orifice of the outflow hole is in an arc shape matched with the sealing ball, the spring seat is fixedly mounted in the sealing pipe, 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 driving 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 tightly abut against the edge of the orifice of the outflow hole to seal the outflow hole, and the liquid medicine in the tube body is difficult to flow out of the outflow hole when the sealing piston does not slide, so that the atomizing cup is convenient to transport and carry; the orifice of the outflow hole is in an arc shape matched with the sealing ball, so that the sealing effect of the sealing ball on the outflow hole is better; when an operator presses the liquid injection cover, the sealing piston extrudes liquid medicine towards the elastic sealing mechanism, the sealing ball compresses the thrust spring and is separated from the flow outlet hole under the extrusion of the liquid medicine, and the liquid medicine can flow into the sealing pipe along the flow outlet hole and flows 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 liquid medicine in the cup 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 the guide rod to slide is formed in the spring seat, one end of the guide rod is connected with the sealing ball, and one end of the guide rod, far away from the sealing ball, penetrates through the guide hole.

Through adopting above-mentioned technical scheme, the one end of guide bar is worn 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 the guiding hole axial under the guiding action of guiding hole and slides to the sealing ball is close to or keeps away from out the discharge orifice along the straight line, makes the sealing ball more stable to the sealed of discharge orifice from this.

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

Through adopting above-mentioned technical scheme, the one end that the sealed ball was kept away from to the guide bar passes the guiding hole and is equipped with and holds the piece, and the operator pulling is held the piece and is driven the guide bar and pull open the sealed ball from discharge hole department to collude from the body other end and get the area with sealed piston to keeping away from discharge hole direction and slide and reply to initial position, thereby be convenient for liquid medicine pipe repacking liquid medicine, improve liquid medicine pipe's utilization ratio, save the cost.

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

By adopting the technical scheme, the air pipe used for communicating with the outside atmosphere is arranged in the cup body, the air pipe introduces the outside air through the atmosphere port to balance the pressure inside 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 jet port 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 pre-filling device is arranged on the outer side of the cup body of the atomizing cup and comprises at least two liquid medicine tubes for containing liquid medicine, and a push block on the liquid filling cover pushes a sealing piston of each liquid medicine tube to slide so as to discharge the liquid medicine from the liquid medicine tubes into the liquid containing cavity, so that the quantitative additional installation of the liquid medicine is realized; meanwhile, the number of the liquid medicine tubes is at least two, and the liquid medicine can be added again by rotating the liquid injection cover to ensure that the push block is aligned with different liquid medicine tubes, so that an operator can conveniently add the liquid medicine; the end, away from the liquid injection cover, of the tube body of the liquid medicine tube is provided with the elastic sealing mechanism, when liquid medicine is not injected, the elastic sealing mechanism seals the tube body, so that the liquid medicine in the tube body is difficult to flow out, the carrying and the transportation of the atomizer are convenient, meanwhile, atomized aerosol is difficult to flow into the tube body, and the utilization rate of the liquid medicine is improved;

2. the inner side of the cover ring is uniformly provided with at least two clamping blocks, a circle of clamping strips are circumferentially arranged on the outer side of the mounting cylinder, the cover ring is not easy to fall off from the mounting cylinder due to the matching of the clamping blocks and the clamping strips, meanwhile, limiting grooves corresponding to the clamping blocks are axially arranged on the peripheral side of the mounting cylinder, and when the clamping blocks rotate and slide into the limiting grooves, the push block corresponds to any one sealing piston, so that the positioning of the push block is realized, and a user can conveniently fill liquid medicine;

3. this application is provided with the round flange in cover ring outside circumference, and the butt has a reset spring between the flange and the cup outside, and reset spring can stop pressing to annotate liquid lid back automatic drive and annotate liquid lid and reset at the user, has simplified operator's operation.

Drawings

FIG. 1 is a schematic view of a prior art atomizing cup.

Fig. 2 is a schematic view of the connection between the atomizer main body and the atomizing cup in embodiment 1 of the present application.

FIG. 3 is a schematic view of an atomizing cup in accordance with example 1 of the present application.

Fig. 4 is a sectional view of an atomizing cup according to embodiment 1 of the present application.

Fig. 5 is an enlarged view of a portion a in fig. 3 of embodiment 1 of the present application.

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

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

Fig. 8 is a schematic view of a liquid injection cap in example 1 of the present application.

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

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

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

FIG. 12 is a schematic view of a liquid pre-loading apparatus according to example two of the present application.

Description of reference numerals:

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 shell; 2111. a flow chamber; 2112. a flow guide surface; 2113. a convex ring; 2114. an annular cavity; 2115. a liquid inlet hole; 212. a lower case; 2121. a liquid containing cavity; 2122. a leg; 213. a lower spring groove; 22. a liquid pre-loading device; 221. mounting the cylinder; 2211. a placement chamber; 2212. clamping the strip; 2213. positioning a groove; 2214. a splint; 222. a liquid medicine tube; 2221. a pipe body; 22211. an outflow hole; 2222. a sealing piston; 22221. a hard disk; 22222 a rubber sleeve; 22223. a groove; 22224. hooking the belt; 2223. an elastic sealing mechanism; 22231. a sealing tube; 22232. a spring seat; 22233. a thrust spring; 22234. a sealing ball; 22235. a guide bar; 22236. a holding block; 22237. a guide hole; 223. a liquid injection cover; 2231. a cover plate; 22311. a push block; 2232. a cover ring; 22321. a clamping block; 22322. a flange; 22323. a baffle ring; 22324. an upper spring groove; 224. a return spring; 23. a compressed gas pipe; 231. a straight pipe section; 232. a conical pipe section; 2321. an air jet 24, a sleeve; 241. supporting a block; 242. a liquid suction tank; 25. a resisting part; 251. a connecting plate; 252. a star-shaped baffle; 253. a bumping post; 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. a hose.

Detailed Description

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

Example 1:

the embodiment 1 of the application discloses an atomizer, refer to fig. 2, the atomizer includes atomizer host computer 1 for providing compressed gas and atomizing cup 2 for atomizing 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 body 1 is an air compressor, which includes an air inlet 11 for sucking air and an air outlet 12 for discharging compressed air. The host machine of the atomizer 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 liquid pre-filling device 22 installed outside the cup body 21 and used for pre-filling liquid medicine, a compressed gas pipe 23 penetrating the bottom of the cup body 21, a sleeve 24 sleeved outside the compressed gas pipe 23, a resisting part 25 positioned above the compressed gas pipe 23, an air pipe 26 sleeved outside the resisting part 25 and the top of the compressed gas pipe 23, and an air outlet pipe 27 connected above the cup body 21 and used for discharging aerosol formed by atomization.

The cup body 21 includes snap-fit upper and

lower shells

211 and 212. A liquid containing cavity 2121 for containing liquid medicine is formed in the lower shell 212, and three legs 2122 are provided outside the lower shell 212 for the atomizing cup 2 to stand upright when not in use. A flow chamber 2111 for flowing aerosol is formed inside the upper case 211, and an outlet pipe 27 is connected above the upper case 211 and communicates with the flow chamber 2111. The upper side wall of the flow cavity 2111 is provided with an inclined flow guide surface 2112, and aerosol formed by liquid medicine atomization flows into the air outlet pipe 27 after being guided by the flow guide surface 2112. A circle of convex rings 2113 sleeved outside the air outlet pipe 27 are arranged outside the upper shell 211, and a circle of annular cavities 2114 are formed between the convex rings 2113 and the outer side of the air outlet pipe 27.

Referring to fig. 4 and 5, the liquid pre-filling device 22 includes a mounting tube 221 fixedly mounted on the upper housing 211, a drug solution tube 222 for pre-filling a drug solution, and a filling cap 223 for driving the drug solution tube 222 to discharge the drug solution. The liquid medicine tube 222 is installed in the installation cylinder 221, and the liquid injection cover 223 is slidably and rotatably installed on one side of the installation cylinder 221 far away from the cup body 21 so as to close the opening of the installation cylinder 221.

Referring to fig. 5 and 6, the mounting tube 221 is integrally injection molded with the cup body 21. The mounting cylinder 221 is axially provided with placing cavities 2211 for placing the liquid medicine supply tubes 222, 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 arranged along the circumferential direction of the mounting cylinder 221. Liquid inlet holes 2115 are formed in the positions, corresponding to the placing cavities 2211, of the cup body 21, 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 accommodating cavity 2121 from the liquid inlet 2115 through the accommodating cavity 2211, which is convenient for an operator to fill the liquid medicine.

Referring to fig. 5 and 7, the liquid medicine tube 222 includes a tube body 2221 for containing liquid medicine, a sealing piston 2222 for sliding the sealing tube 22231 toward one end of the liquid injection cap 223, and an elastic sealing mechanism 2223 for sealing one end of the tube 22231 away from the liquid injection cap 223. The number of the liquid medicine tubes 222 is at least two, so that the trouble of filling liquid medicine for many times by an operator is reduced. In this embodiment, three medical fluid tubes 222 and three containing cavities 2211 are shown.

The tube 2221 is a cylindrical container with a bottom at one end, the bottom of the tube 2221 is connected to the elastic sealing mechanism 2223, and the bottom of the tube 2221 is provided with an outflow hole 22211 through which the liquid medicine flows out. The volume of the tube 2221 can be designed according to the dosage of medication, and each tube 222 is pre-filled with a dosage of medication, so that the operator can conveniently add the medication in a quantitative manner.

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 tube 2221 to seal the tube 22231 and the hard disk 22221 is used to support the rubber sleeve 22222, so that the rubber sleeve 22222 is not prone to sealing failure due to deformation.

Referring to fig. 9, the elastic sealing mechanism 2223 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 orifice 22211 to seal the tubular body 2221. Therefore, the sealing piston 2222 and the sealing ball 22234 jointly seal the liquid medicine in the body 22231 of the tube 22231, so that the liquid medicine tube 222 is not easy to leak during carrying and transportation, and the liquid medicine tube 222 can be conveniently transported separately or carried along with the atomizing cup 2 after being filled with the liquid medicine.

Wherein, sealed 22231 periphery is equipped with the external screw thread, and the inner wall of placing chamber 2211 and being close to cup 21 one end is equipped with the internal thread, sealed 22231 with place chamber 2211 inner wall threaded connection, make the medicine liquid pipe 222 stable and convenient with being connected of installation section of thick bamboo 221 from this.

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

Referring to fig. 5, 6 and 8, the liquid injection cap 223 includes a cap plate 2231 for covering the opening of the mounting cylinder 221 and a cap ring 2232 attached to a side of the cap 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 2231 is eccentrically provided with a push block 22311, and the push block 22311 is a cylinder shape adapted to the tube 2221, i.e., the push block 22311 can be inserted into the tube 2221. The distance from the axis of the push block 22311 to the center of the cover 2231 is the same as the distance from the axis of the drug solution tube 222 to the axis of the mounting barrel 221, so that as the cover 2231 rotates, the push block 22311 rotates with the cover 2231 and is in turn aligned with the sealing piston 2222 of each drug solution tube 222.

When the push block 22311 is aligned with any one of the sealing pistons 2222, the operator presses the cover 2231, the liquid injection cover 223 slides in a direction approaching the cup 21 relative to the mounting cylinder 221, the push block 22311 abuts against the sealing piston 2222 and pushes the sealing piston 2222 to slide in a direction approaching the cup 21, so that the sealing piston 2222 presses the liquid medicine in the tube 2221, and the pressure in the tube 2221 is increased. The medical fluid presses against the sealing ball 22234 to compress the thrust spring 22233, the sealing ball 22234 moves away from the outlet port 22211, and the medical fluid flows from the outlet port 22211 into the sealing tube 22231. The liquid medicine in the sealing tube 22231 flows into the cup body 21 from the liquid inlet 2115, and the liquid medicine is loaded.

Wherein, three fixture blocks 22321 are uniformly arranged on the inner side of one end of the cover ring 2232 away from the cover plate 2231 in the circumferential direction. The mounting cylinder 221 is provided with a ring-shaped clip strip 2212 at the outer circumference of one end facing the cover 2231. When the injection cap 223 is mounted on the mounting tube 221, the stopper 2212 is positioned on the side of the stopper 22321 facing the cover 2231, and the stopper 22321 abuts against the outer peripheral side of the mounting tube 221. When the liquid injection cover 223 slides in a direction away from the cup body 21, the snap ring can abut against the fixture block 22321, so that the liquid injection cover 223 is not easily separated from the fixture block 22321. Wherein, the side of the fixture block 22321 abutting against the fixture strip 2212 is arc-shaped, so that the liquid injection cover 223 and the installation cylinder 221 can be conveniently clamped and installed.

In addition, the periphery of the installation cylinder 221 is provided with positioning grooves 2213, the extending direction of which is parallel to the axial direction of the installation cylinder 221, the number of the positioning grooves 2213 is the same as that of the fixture blocks 22321, and the positioning grooves 2213 are uniformly distributed along the circumferential direction of the installation cylinder 221. When the operator rotates the injection cap 223 and the push block 22311 is aligned with the sealing piston 2222 of any one of the medical fluid tubes 222, the block 22321 slides into one of the positioning slots 2213. When the plunger 22311 is rotated to align with the sealing plunger 2222 of the other drug tube 222, the latch 22321 slides from one detent 2213 to the other detent 2213. When the operator presses the filling cap 223 to fill the liquid medicine into the cup body 21, the fixture block 22321 slides in a direction approaching the cup body 21 along the positioning groove 2213. Thereby facilitating alignment of push block 22311 and sealing piston 2222 by the operator for filling with medical fluid.

The outer side of the end of the cover ring 2232 adjacent the cup 21 is provided with a circumferential rim 22322. An annular upper spring groove 22323 is circumferentially formed on a side of the flange 22322 facing the cup body 21. The cup body 21 is provided with a lower spring groove 213 surrounding the outer side of the mounting tube 221, and a return spring 224 is abutted between the groove walls of the upper spring groove 22324 and the lower spring groove 213. When the operator presses the liquid injection cover 223, the liquid injection cover 223 compresses the return spring 224; after the liquid medicine is filled, an operator releases the liquid filling cover 223, and the liquid filling cover 223 automatically returns to the initial position under the driving of the return spring 224, so that the operation of the operator during liquid filling 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 defines 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 rod 22235 thereby guides the sealing ball 22234 and the thrust spring 22233, making the sealing of the outlet opening 22211 by the sealing ball 22234 more stable.

A grip block 22236 is threadably attached to the end of the guide rod 22235 remote from the sealing ball 22234. A groove 22223 is formed on one side of the hard disc 22221 facing the liquid injection cover 223, and a hooking strip 22224 is fixedly arranged outside the groove 22223. After the liquid medicine in the tube 2221 is filled, when the tube 2221 needs to be refilled with liquid medicine, the operator pulls the grip 22236 to pull the sealing ball 22234 away from the outflow hole 22211, hooks the hook 22224 to pull the sealing piston 2222 back to the end of the tube 2221 away from the outflow hole 22211, and fills the liquid medicine into the tube 2221 with a tool such as a syringe. Therefore, the medicine liquid pipe 222 can be repeatedly used, and the use cost of the medicine liquid pipe 222 is reduced.

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

Wherein, the pipe diameter of the cone section 232 is gradually reduced along the direction far away from the bottom wall of the cup body 21, so that the gas flow velocity in the cone section 232 is continuously increased. The end of the conical pipe section away from the bottom wall of the cup body 21 is provided with an air outlet 2321, and the high-speed air flow in the conical pipe section 232 can be ejected upwards through the air outlet 2321.

The sleeve 24 is a tapered cylinder adapted to the tapered pipe section 232, i.e. the sleeve 24 can be sleeved outside the tapered pipe section 232. A plurality of support blocks 241 are uniformly spaced at the lower end of the sleeve 24, and the support blocks 241 abut against the bottom wall of the cup body 21 to support the sleeve 24. Two liquid suction grooves 242 are formed in the inner side wall of the sleeve 24 along the generatrix direction, one end of the liquid suction groove 242 is located in the liquid containing cavity 2121, and the other end of the liquid suction groove 242 is located near the gas injection port 2321.

When the gas flow flowing at a high speed is ejected from the gas ejection opening 2321, a negative pressure region is formed near the gas ejection opening 2321 because the gas flow rate near the gas ejection opening 2321 is large. So that the pressure at the upper end of the pipette tip 242 is less than the pressure at the lower end of the pipette tip 242. The liquid chemical in the liquid accommodating chamber 2121 is sucked into the liquid suction tank 242 through the gap between the support pieces 241, is sucked into the vicinity of the air outlet 2321 through the liquid suction tank 242, and is blown out upward by the high-speed air flow.

Referring to fig. 9 and 10, the stopper 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 positioned above the gas injection port 2321, a stopper 253 connected to a side of the star-shaped baffle 252 facing the gas injection port 2321, and a stopper plate 254 horizontally connected to a side of the baffle. The sleeve 24, the connecting plate 251, the star-shaped retainer 252, the stopper 253, and the stopper plate 254 are integrally injection-molded.

The blocking column 253 faces the air outlet 2321, the high-speed airflow which is ejected from the air outlet 2321 and is wrapped with the liquid medicine impacts the blocking column 253 to crush the liquid medicine into small particles, and the crushed liquid medicine is attached to the airflow in the cup body 21 to form aerosol and flows to the air outlet pipe 27 in the flowing cavity 2111 to be discharged. The star-shaped baffle 252 is located above the stop pillar 253 to stop the liquid medicine flying upward and to make it flow back into the liquid-containing chamber 2121 for re-atomization.

Referring to fig. 4 and 9, an end of the air tube 26 is sleeved outside the star-shaped baffle 252, the stop pillar 253 and the air outlet 2321. The end of the air tube 26 remote from the star baffle 252 has an atmospheric port 261 which communicates with the annular cavity 2114. When the liquid medicine is atomized, the outside air flows into the air tube 26 from the atmospheric port 261 and flows into the cup body 21 through the air tube 26 to supplement air to balance the pressure in the cup body 21.

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

Referring to fig. 11, a ball joint tube 28 is connected to an end of the air outlet tube 27 away from the upper case 211, and a face mask 29 is spherically hinged to the air outlet tube 27 through the ball joint tube 28. The operator can adjust the angle by rotating the mask 29 to the proper angle while wearing the mask 29 for the aerosol treatment.

The implementation principle of the embodiment 1 of the application is as follows:

when filling the liquid medicine, the operator rotates the injection cap 223 to align the push block 22311 with the sealing piston 2222, presses the injection cap 223, and the push block 22311 pushes the sealing piston 2222 to fill the liquid medicine in the liquid medicine tube 222 into the liquid containing chamber 2121. After the liquid medicine is filled, the operator releases the liquid filling cap 223, and the return spring 224 pushes the liquid filling cap 223 to return. When the liquid medicine needs to be filled next time, the operator rotates the liquid filling cap 223 to align the push block 22311 with the other sealing piston 2222, and presses the liquid filling cap 223 to fill the liquid medicine.

When the liquid medicine tube 222 is installed, the liquid medicine tube 222 with the liquid medicine pre-installed therein is placed in the placing cavity 2211, the liquid medicine tube 222 is screwed to the installation cylinder 221 by rotating the liquid medicine tube 222, 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 jet 2321 jets a high-speed airflow upwards, the liquid medicine sucked by the liquid suction tank 242 impacts the barrier pillar 253 along with the high-speed airflow and is crushed into fine particles, and the liquid medicine particles are attached to the airflow to form aerosol which is discharged from the air outlet pipe 27 for the inhalation of an operator.

Example 2:

the embodiment 2 of the present application is different from the embodiment 1 in that:

referring to fig. 12, the mounting cylinder 221 is a hollow cylinder, and three connected clamping plates 2214 are arranged in the mounting cylinder 221, and the angles between the three clamping plates 2214 are the same. The three clamping plates 2214 divide the inner cavity of the mounting cylinder 221 into three identical fan-shaped placing cavities 2211. The shape of the medicine liquid tube 222 is a sector shape adapted to the containing cavity 2211, that is, the medicine liquid tube 222 can be inserted into the containing cavity 2211, and the medicine liquid tube 222 is in interference fit with the containing cavity 2211. Therefore, the space in the installation cylinder 221 is effectively utilized, the space occupied by the installation cylinder 221 is reduced, and the atomizer is convenient to transport and carry.

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

when the liquid medicine tube 222 is installed, an operator inserts the liquid medicine tube 222 pre-filled with liquid medicine into the placing cavity 2211, after the liquid medicine tube 222 and the installation cylinder 221 are inserted, the liquid injection cover 223 is clamped and covered outside the installation cylinder 221 to seal the installation cylinder 221.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. An atomizer comprises an atomizer main body (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) which penetrates through the bottom of the cup body (21) and is connected with the atomizer main machine (1), a sleeve (24) which is sleeved outside the compressed gas pipe (23), a retaining part (25) which is positioned above the compressed gas pipe (23) and an air outlet pipe (27) for discharging atomized liquid medicine, one end of the compressed gas pipe (23) facing the resisting part (25) is provided with a gas spraying opening (2321), 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 opening (2321); the atomizing cup (2) is characterized by further comprising a liquid pre-filling device (22) arranged outside the cup body (21), wherein the liquid pre-filling device (22) comprises a mounting barrel (221) mounted on the outer side of the cup body (21), at least two liquid medicine pipes (222) used for pre-filling liquid medicine and a liquid filling cover (223) slidably and rotatably mounted on one side, far away from the cup body (21), of the mounting barrel (221); the mounting cylinder (221) is axially provided with a placing cavity (2211) corresponding to the medicine liquid pipe (222), the placing cavities (2211) are uniformly arranged along the circumferential direction of the mounting cylinder (221), and the medicine liquid pipe (222) is detachably mounted in the placing cavity (2211); the liquid medicine pipe (222) comprises a pipe body (2221) for containing liquid medicine, a sealing piston (2222) for sealing one end of the pipe body (2221) in a sliding mode and an elastic sealing mechanism (2223) for sealing the other end of the pipe body (2221), the sealing piston (2222) is installed in one end, facing the liquid injection cover (223), of the pipe body (2221) in a sliding mode, the elastic sealing mechanism (2223) is installed outside one end, far away from the sealing piston (2222), of the pipe body (2221), one end, facing the elastic sealing mechanism (2223), of the pipe body (2221) is provided with a flow outlet hole (22211), and a liquid inlet hole (2115) communicated with the placing cavity (2211) is formed in the position, corresponding to each placing cavity (2211), of the outer side of the cup body (21); annotate liquid lid (223) including be used for sealing apron (2231) of installation section of thick bamboo (221) and with apron (2231) link to each other and the cover establish outside installation section of thick bamboo (221) cover ring (2232), apron (2231) orientation one side of medicine liquid pipe (222) is provided with one and is used for the drive push block (22311) that sealed piston (2222) axial slided.

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

3. The atomizer according to claim 2, wherein the mounting cylinder (221) is provided with positioning grooves (2213) on the outer side thereof, the extending direction of the positioning grooves (2213) is parallel to the axial direction of the mounting cylinder (221), at least two positioning grooves (2213) are provided corresponding to the medicine liquid tube (222), and at least two positioning grooves (2213) are uniformly arranged along the circumferential direction of the mounting cylinder (221); the fixture block (22321) corresponds to the positioning groove (2213), and when the liquid injection cover (223) rotates to the state that the push block (22311) is aligned with any one of the sealing pistons (2222), the slide block slides into the positioning groove (2213).

4. A nebulizer 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. An atomizer according to claim 1, characterized in that, the placing cavity (2211) and the liquid medicine tube (222) are both cylindrical, the inner wall of the placing cavity (2211) is provided with internal threads, and the outer side of the liquid medicine tube (222) is provided with external threads adapted to the placing cavity (2211).

6. A nebulizer according to claim 1, wherein the placing cavity (2211) and the drug solution tube (222) are fan-shaped, and the drug solution tube (222) is in interference fit with the placing cavity (2211).

7. A nebulizer as claimed in claim 1, wherein the resilient sealing mechanism (2223) comprises a sealing tube (22231) communicating with the tube body (2221), a sealing ball (22234) for sealing the outlet hole (22211), a thrust spring (22233) driving the sealing ball (22234) into abutment with the orifice rim of the outlet hole (22211), and a spring seat (22232) in which the thrust spring (22233) is mounted, the orifice of the outlet hole (22211) has an arc shape fitting 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 (2223) further comprises a guide rod (22235), the guide rod (22235) is inserted into the thrust spring (22233), a guide hole (22237) for the guide rod (22235) to slide is opened on the spring seat (22232), one end of the guide rod (22235) is connected to the sealing ball (22234), and one end of the guide rod (22235) far from the sealing ball (22234) passes through the guide hole (22237).

9. A nebulizer as claimed in claim 8, wherein the end of the guiding rod (22235) remote from the sealing ball (22234) is provided with a holding block (22236), the side of the sealing piston (2222) remote from the resilient sealing mechanism (2223) is provided with a groove (22223), and the groove (22223) is provided with a hook strip (22224).

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