CN214286280U

CN214286280U - Air flue humidifying device

Info

Publication number: CN214286280U
Application number: CN202022765295.5U
Authority: CN
Inventors: 巫岚
Original assignee: Affiliated Hospital of Southwest Medical University
Current assignee: Affiliated Hospital of Southwest Medical University
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-09-28
Anticipated expiration: 2030-11-25

Abstract

The utility model provides an air flue humidifying device, which comprises a liquid storage bottle and a pressing type spray head assembly arranged on the liquid storage bottle, wherein a liquid collecting tank with an upper opening structure is arranged at the inner bottom of the liquid storage bottle, the pressing type spray head assembly comprises a connecting piece, a pressing piece which is connected with the connecting piece in a sliding way along the opening direction of the liquid storage bottle, a reset piece which is fixed on the connecting piece and enables the pressing piece to be far away from the sliding way of the liquid storage bottle, and a liquid absorbing piece which leads out the liquid medicine in the liquid storage bottle in the process that the pressing piece moves towards the liquid storage bottle; the imbibition piece includes pipe and the horizontal clamp plate that sets up, the one end of pipe stretches out from the pressing part, and the other end extends and is fixed in the clamp plate towards the bottom of stock solution bottle, and the clamp plate forms the interval with the collecting tank and is penetrated by the pipe, the circumference curved surface of clamp plate and the curved surface that the inner wall of collecting tank formed are located same curved surface. This application has and improves the effect that is not good to air flue humidifying liquid volume control effect, leads to the risk of phlegm bolt formation and the not good problem of air flue humidifying effect.

Description

Air flue humidifying device

Technical Field

The application relates to the technical field of postoperative wetting equipment of air passages, in particular to an air passage humidifying device.

Background

The airway humidification is a medical means for ensuring that the patient breathes smoothly after the neck tracheotomy. At present, humidification liquid is extracted by an injector and then a needle head is taken down for an intraductal dripping humidification method and a small spray can spraying humidification method are mainly adopted clinically, and the humidification method injected by the injector is easy to pollute, so that the speed is not easy to control, and the patient has complications such as irritable cough, chest distress, rapid increase of heart rate, reduction of blood oxygen saturation, rise of blood pressure and the like; the small spray can spray humidification method can effectively keep the humidification liquid sterile and not easy to pollute, and can also effectively control the humidification liquid amount and speed to avoid uncomfortable symptoms; however, although the existing small sprinkling can humidify the air by spraying, the patient can be prevented from irritating and coughing, but the amount of air entering each time is relatively unknown, the air passage humidifying effect is relatively poor, and the risk of forming phlegm embolism is caused.

SUMMERY OF THE UTILITY MODEL

In order to improve not good to air flue humidifying liquid measure control effect, lead to the risk of phlegm embolism formation and the not good problem of air flue humidifying effect, this application provides an air flue humidifying device.

The application provides a pair of air flue humidifying device adopts following technical scheme:

an air flue humidifying device comprises a liquid storage bottle with an upper opening structure and a pressing type spray head assembly arranged at the upper opening of the liquid storage bottle, wherein a liquid collecting tank with an upper opening structure is arranged at the inner bottom of the liquid storage bottle; the connecting piece penetrates along the opening direction of the liquid storage bottle to form an opening, the connecting piece is provided with a first air hole and a second air hole, the first air hole is communicated with the outside and the inside of the connecting piece, and the second air hole is communicated with the inside of the connecting piece and the inside of the liquid storage bottle; the liquid suction piece comprises a guide pipe and a transversely arranged pressing plate, one end of the guide pipe is arranged in the pressing piece and extends out of the pressing piece, the other end of the guide pipe extends towards the bottom of the liquid storage bottle, the pressing plate is transversely arranged at the upper opening of the liquid collecting tank and forms a distance with the liquid collecting tank, the pressing plate is fixed at the end part of the guide pipe and is penetrated by the guide pipe, and the circumferential curved surface of the pressing plate and the curved surface formed by the inner wall of the liquid collecting tank are located on the same curved surface.

By adopting the technical scheme, during humidification, force towards the liquid storage bottle is applied to the pressing piece, so that the pressing plate moves towards the liquid collecting tank, liquid medicine in the liquid collecting tank is extruded by the pressing plate into the catheter in the moving process, and then the liquid medicine is sprayed out of the catheter and humidifies a part to be humidified; after humidification, the pressing piece is released, the pressing piece and the liquid absorbing piece move in opposite directions under the action of the resetting piece, and the liquid collecting tank is filled with liquid medicine so as to carry out the next humidification action; in the humidifying process, the volume of the liquid collecting tank is unchanged, so that the amount of liquid entering the conduit in each extrusion is relatively fixed, and one or more humidifying actions can be performed as required, thereby achieving the purpose of improving the problems of poor control effect on the amount of humidifying liquid of the air passage, risk of forming phlegm embolus and poor humidifying effect of the air passage; in the extrusion process, the first air hole and the second air hole can enable the air pressure of the liquid storage bottle to be consistent with the air pressure of the outside.

Preferably, the connecting piece comprises a vertical part and a fixing plate, the vertical part is penetrated along the opening direction of the liquid storage bottle to form a stepped opening with a small upper part and a large lower part, one end of the vertical part is connected with the liquid storage bottle in a threaded manner, and the fixing plate is transversely arranged at one end of the vertical part close to the liquid storage bottle and is penetrated by the guide pipe; the first air hole is opened in vertical portion, the second air hole is opened in the fixed plate, the pressing piece and the piece that resets all set up in one side that the fixed plate deviates from the liquid storage bottle and the piece that resets is fixed in the fixed plate.

Preferably, the pressing piece comprises a plug body and a pressing part, the plug body is abutted to the inner wall of the vertical part in the circumferential direction, and the pressing part is positioned on one side of the plug body, which is far away from the liquid storage bottle; the conduit simultaneously penetrates into the plug body and the pressing portion and out of the pressing portion.

Preferably, a check valve is fixed in the second air hole.

By adopting the technical scheme, in the humidifying process, the one-way valve can ensure that the gas in the vertical part enters the liquid storage bottle, and the gas in the liquid storage bottle cannot reversely flow into the vertical part; when the disease condition is relatively serious, the plug body presses the gas in the vertical part into the liquid storage bottle through the pressing plate in the process of repeatedly pressing the liquid medicine into the catheter, so that the air pressure in the liquid storage bottle is continuously increased, and further, after the air pressure is enough, the pressing piece is not required to be continuously pressed, the liquid medicine can enter the catheter and be rapidly sprayed out under the action of the air pressure until the air pressure is balanced, so that the effect of rapid humidification is achieved, and the risk of forming the sputum plug is reduced; meanwhile, the one-way valve can also prevent the liquid medicine from flowing backwards; when the rapid injection is not needed, the vertical part is opened, so that the air pressure in the liquid storage bottle is recovered.

Preferably, the first air hole is communicated with one end, away from the liquid storage bottle, of the vertical part, and when the resetting piece is in a natural state, the opening, communicated with the inner side of the vertical part, of the first air hole is located on the lower side of the pressing piece.

By adopting the technical scheme, the vertical part is ensured to be communicated inside and outside through the first air hole, and outdoor air is guided into the vertical part; guarantee the cock body at the in-process of gliding, can plug up first gas pocket in the shortest time, reduce the external probability of gaseous entering in the vertical portion, and then guarantee the gaseous maximize in the vertical portion enter into the stock solution bottle in, guarantee to make the atmospheric pressure increase in the stock solution bottle in the shortest time to carry out the rapid injection action.

Preferably, the reset piece comprises a plurality of first reset springs with the same length, the first reset springs are fixed on the fixing plate, and the maximum compression amount of the first reset springs is larger than the distance from the pressure plate to the bottom of the liquid collecting tank.

By adopting the technical scheme, the pressing plate can be abutted against the bottom of the liquid collecting tank to extrude the liquid in the liquid collecting tank relatively completely; after the pressing piece is released, the first return spring can push the plug body back, so that the plug body is abutted to the vertical part at the shaft shoulder, and the next injection action is performed.

Preferably, the reset piece comprises a plurality of second reset springs with different lengths, and the second reset springs are fixed on the fixing plate.

Through adopting above-mentioned technical scheme, at the in-process that uses, the pressure of accessible variation in size makes the clamp plate fall to different heights, extrudes the liquid medicine that the medicine amount is different to be convenient for more control air flue humidifying liquid measure.

Preferably, when the second return spring with the minimum length is in a state of maximum compression amount, the distance from the second return spring to the vertical shaft shoulder is greater than the maximum distance from the pressure plate to the bottom of the liquid collecting tank.

Through adopting above-mentioned technical scheme to guarantee under the pressing member sufficient pressure effect, the clamp plate can butt in the bottom of collecting tank, once only extrudes the liquid medicine in the collecting tank.

Preferably, the bottom of the liquid storage bottle is inclined downwards towards the liquid collecting groove and is communicated with the groove opening end of the liquid collecting groove.

By adopting the technical scheme, the liquid medicine in the liquid storage bottle can flow into the liquid collecting tank.

Preferably, the opening of the liquid storage bottle is a circular opening, the pressing plate is a circular plate, and the area of the plate surface of the pressing plate is smaller than that of the opening of the liquid storage bottle.

Through adopting above-mentioned technical scheme, can guarantee that the clamp plate takes out smoothly from the stock solution bottle.

In summary, the present application includes at least one of the following beneficial technical effects:

1. in the humidifying process, the liquid medicine in the liquid collecting tank is extruded into the guide pipe and sprayed out, and the air passage is humidified, so that the liquid medicine sprayed out each time is unchanged after the pressing plate reaches the bottom of the liquid collecting tank due to the unchanged volume of the liquid collecting tank, namely the humidifying amount each time is relatively unchanged, the humidifying frequency can be controlled according to the state of an illness, and the humidifying effect is more convenient to control; through the arrangement of the one-way valve, in the humidification process, gas in the vertical part enters the liquid storage bottle, after continuous injection, the air pressure in the liquid storage bottle is increased, so that when the patient is in a relatively serious state and needs to be humidified for many times, liquid medicine is extruded into the catheter under the action of the air pressure, and therefore rapid humidification action is performed, even if slow humidification or rapid humidification impact is selected according to the sputum viscosity and the state of an illness of the patient, the liquid quantity is controlled relatively, the problem that the sputum embolus is formed due to poor control effect of the airway humidification liquid quantity and the problem that the airway humidification effect is poor is solved;

2. through the arrangement of the plurality of second reset springs with different lengths, the selectivity of slow humidification is higher, namely, the control mode of the amount of the liquid medicine is higher according to the requirement, so that the humidification effect is better, and the practicability is higher;

3. the humidifying device is economical and practical for patients who have stable state of illness and can freely go out of bed to move and patients who are discharged at home in the rehabilitation period, and the humidifying device is not easy to pollute humidifying liquid, convenient to carry and simple to operate.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the airway humidifying device of the present application;

FIG. 2 is a schematic longitudinal cross-sectional view of a push-type showerhead assembly according to an embodiment of the present application;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

fig. 4 is a schematic longitudinal sectional view of a second embodiment of the present application.

In the above drawings: 1. a liquid storage bottle; 11. a liquid collecting tank; 2. a connecting member; 21. a vertical portion; 211. a first air hole; 22. a fixing plate; 221. a second air hole; 222. a one-way valve; 3. a pressing member; 31. a plug body; 32. a pressing part; 4. a reset member; 41. a first return spring; 42. a second return spring; 5. a liquid absorbing member; 51. a conduit; 511. a pressure increasing member; 512. a liquid outlet hole; 52. and (7) pressing a plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

Example one

Referring to fig. 1 and 2, the embodiment of the present application provides an airway humidifying device, including a liquid storage bottle 1 and a push type nozzle assembly, wherein the liquid storage bottle 1 is integrally tubular and has an upward circular opening, so that a liquid medicine is injected into the liquid storage bottle 1 through the opening; the bottom of the liquid storage bottle 1 is inclined downwards, and a liquid collecting groove 11 is formed at the lowest part of the bottom of the liquid storage bottle in a downward concave mode, so that liquid medicine in the liquid storage bottle 1 can flow into the liquid collecting groove 11; the liquid collecting groove 11 is a circular groove and the opening direction thereof is in the same direction as the opening direction of the liquid storage bottle 1. The liquid storage bottle 1 is made of a light-transmitting material so as to observe the liquid amount in the liquid storage bottle 1; and the end of the liquid storage bottle 1 provided with the liquid collecting groove 11 is provided with scales so as to observe the liquid level in the liquid collecting groove 11.

Referring to fig. 1 and 2, the push-type nozzle assembly is disposed at an upper opening of the liquid storage bottle 1, and can eject the liquid medicine in the liquid storage bottle 1 by pressing. The push type head assembly includes a connecting member 2, a pressing member 3, a returning member 4, and a liquid absorbing member 5.

Specifically, the connector 2 includes a vertical portion 21 and a fixing plate 22. A stepped opening with a small upper part and a large lower part is formed in the vertical part 21 in a penetrating manner along the vertical direction, and an internal thread is formed at one end with a larger opening of the vertical part 21 and is connected to the upper opening of the liquid storage bottle 1 in a threaded manner; a first air hole 211 is formed through the side wall of the vertical part 21 to communicate the outer side and the inner side of the vertical part 21, and external air is guided into the vertical part 21 through the first air hole 211; one end of the first air hole 211 communicated with the outer side penetrates through the end side of the vertical part 21 close to the liquid storage bottle 1 and then is opened downwards, so that the probability that external dust enters the first air hole 211 is reduced; the opening of the first air hole 211 communicated with the inside of the vertical part 21 is positioned at one end of the vertical part 21 departing from the liquid storage bottle 1 and forms a distance with the shaft shoulder of the vertical part 21. The fixing plate 22 is in threaded connection with the inner side of the vertical part 21, an opening which is communicated with the inner side of the vertical part 21 relative to the first air hole 211 is close to the liquid storage bottle 1, and the fixing plate 22 is transversely arranged; a second air hole 221 is formed in the fixing plate 22 along the thickness direction thereof in a penetrating manner so as to guide the air in the vertical portion 21 into the liquid storage bottle 1; a check valve 222 is adhesively fixed in the second air hole 221 to prevent the gas and the liquid medicine in the liquid storage bottle 1 from entering the vertical portion 21.

The pressing piece 3 comprises a plug body 31 and a pressing part 32, the plug body 31 is made of rubber and is arranged inside the vertical part 21, and the plug body 31 is abutted against the inner wall of the vertical part 21 in the circumferential direction to form a sealing effect on the upper opening of the vertical part 21; the thickness of the plug body 31 is equal to the distance from the opening of the first air hole 211 communicated with the inside of the vertical portion 21 to the shaft shoulder of the vertical portion 21, so that when the plug body 31 abuts against the shaft shoulder of the vertical portion 21, the opening of the first air hole 211 communicated with the inside of the vertical portion 21 is positioned at the lower side of the plug body 31, and gas can be guided into the vertical portion 21 through the first air hole 211; meanwhile, when the plug body 31 moves towards the liquid storage bottle 1, the plug body 31 can plug the first air hole 211 in the shortest time, and the probability that the air in the vertical part 21 flows towards the outside is reduced. The pressing portion 32 is generally cylindrical, and is located on a side of the plug body 31 away from the liquid storage bottle 1 and passes through an opening with a smaller inner diameter of the vertical portion 21, and one end of the pressing portion in the length direction is fixed to the plug body 31. When a force is applied to the pressing portion 32, the pressing portion 32 and the stopper body 31 slide together toward the liquid storage bottle 1.

The reset piece 4 comprises a plurality of first reset springs 41 with the same length, one end of the first reset spring 41 in the length direction is fixed on the fixing plate 22, the other end of the first reset spring extends towards the plug body 31, and when the first reset spring 41 is in a natural state, the plug body 31 abuts against the shaft shoulder of the vertical part 21; and when a force toward the liquid storage bottle 1 is applied to the pressing member 3, the first return spring 41 is compressed, that is, when the force is not applied to the pressing member 3 any more, the first return spring 41 returns to the natural state and pushes the pressing member 3 back to the original position.

The liquid absorbing part 5 comprises a guide pipe 51 and a pressing plate 52, one end of the guide pipe 51 is preset in the plug body 31 and the pressing part 32, the end part is bent transversely and then extends out of the pressing part 32, and the other end of the guide pipe 51 penetrates through the plug body 31, then penetrates through the fixing plate 22 and extends to the bottom of the liquid storage bottle 1; and the part of the fixing plate 22 penetrated by the conduit 51 is sealed, so that the conduit 51 can slide relative to the fixing plate 22, and the probability that the gas in the liquid storage bottle 1 enters the vertical part 21 through the connecting part is reduced. The pressing plate 52 is disc-shaped and transversely arranged in the liquid storage bottle 1, and the axis of the pressing plate is fixed at the end part of the guide pipe 51 and is penetrated by the guide pipe 51; in the vertical direction, when the first return spring 41 is in a natural state, the pressure plate 52 and the liquid collecting tank 11 form a gap to ensure that the liquid medicine in the liquid storage bottle 1 smoothly flows into the liquid collecting tank 11; and the diameter of the pressure plate 52 is equal to the inner diameter of the liquid collecting groove 11, so that after the pressure plate 52 enters the liquid collecting groove 11, the pressure plate 52 is in circumferential contact with the inner wall of the liquid collecting groove 11, and the flow path of the liquid medicine between the liquid collecting groove 11 and the liquid storage bottle 1 is blocked. When the plug body 31 abuts against the shaft shoulder of the vertical part 21, the distance from the pressure plate 52 to the bottom of the liquid collecting tank 11 is smaller than the maximum compression amount of the first return spring 41, so that the pressure plate 52 can abut against the bottom of the liquid collecting tank 11 in the descending process.

When the liquid storage bottle is used, the liquid storage bottle 1 is held by hand, downward force is applied to the pressing part 32, the plug body 31 slides towards the liquid storage bottle 1, the pressing plate 52 enters the liquid collecting tank 11 in the sliding process, liquid medicine in the liquid collecting tank 11 is extruded, the liquid medicine in the liquid collecting tank 11 is sprayed out through the guide pipe 51, and then an air passage is humidified; then the pressing part 32 is loosened, the plug body 31 slides reversely under the action of the first return spring 41, the pressing plate 52 is separated from the liquid collecting groove 11, so that the liquid medicine in the liquid storage bottle 1 enters the liquid collecting groove 11, and the spraying action is repeated; because the volume of the liquid collecting groove 11 is kept unchanged, the injection amount is relatively consistent every time, so that the injection times can be selected according to the sputum viscosity and the illness state characteristics of a patient, and the control effect on the airway humidifying liquid amount is relatively better. When the state of an illness is relatively serious, when needing quick humidifying effect, pour into repeatedly, under the effect of promoting repeatedly of cock body 31, gas in the vertical portion 21 is extruded and is got into stock solution bottle 1, under the effect of check valve 222, atmospheric pressure in the stock solution bottle 1 increases gradually, atmospheric pressure is enough the back, need not press according to the splenium 32, under the effect of atmospheric pressure, can with the direct extrusion of the liquid medicine in the stock solution bottle 1 enter into pipe 51, and spout fast, thereby pour into, make the air flue humidifying effect better. In the process of each injection, the injection amount of each injection can be observed according to the scales on the liquid storage bottle 1, and the injection amount can be known and controlled in real time.

Referring to fig. 3, a pressurizing member 511 is fixed at one end of the conduit 51 penetrating out of the pressing portion 32, the pressurizing member 511 is adhered to the inner wall of the conduit 51, a plurality of liquid outlet holes 512 are formed in the pressurizing member 511, and the diameter of each liquid outlet hole 512 is smaller than the inner diameter of the conduit 51, so that the spraying effect is increased while the liquid medicine is guided out; meanwhile, the probability of external dust entering the conduit 51 is reduced, and cleanness is guaranteed.

The embodiment of the application relates to an implementation principle of an air flue humidifying device, which is as follows: when the liquid medicine needs to be added, the vertical part 21 is screwed down, and the liquid medicine can be added into the liquid storage bottle 1. When in use, the end part of the catheter 51 is extended to the part to be humidified; pressing piece 3 is pressed down again, so that guide pipe 51 and pressing plate 52 move towards liquid collecting tank 11, pressing plate 52 enters into liquid collecting tank 11 and extrudes the liquid medicine in liquid collecting tank 11 into guide pipe 51, and then is sprayed out from guide pipe 51, after one humidification action is completed, pressing piece 3 is loosened, pressing piece 3 and liquid absorbing piece 5 move reversely, and liquid medicine is filled in liquid collecting tank 11. In the humidification process, the humidification times can be selected according to the humidification condition, namely when the disease condition is light, slow injection or humidification for a few times is carried out; in severe cases, the injection is performed rapidly, i.e. multiple injections, so that the medicinal liquid is ejected from the catheter 51 under the action of pressure to perform rapid impact injection. After multiple uses, the vertical part 21 is screwed down and covered, and the air pressure in the liquid storage bottle 1 can be recovered to be normal.

Example two

Referring to fig. 4, the difference between the second embodiment and the first embodiment is as follows:

the restoring member 4 includes a plurality of second restoring springs 42 having different lengths, the second restoring springs 42 are fixed to the fixing plate 22, and the plug body 31 abuts against the shoulder of the vertical portion 21 when the second restoring spring 42 having the longest length is in a natural state. When downward force is applied to the pressing piece 3, in the process that the plug body 31 is pressed down, the second return spring 42 with a longer length is compressed first, after the second return spring 42 with a shorter length is touched, the plug body can be continuously descended by larger pressure, and more liquid medicine is pressed into the conduit 51 through the pressing plate 52; that is, in the using process, the pressing plate 52 can be lowered to different heights by the pressure with different sizes, and the liquid medicine with different amounts is extruded, so that the air passage humidifying liquid amount can be controlled more conveniently.

When the second return spring 42 with the minimum length is in the state of the maximum compression amount, the distance from the second return spring 42 to the shaft shoulder of the vertical part 21 is larger than the maximum distance from the pressure plate 52 to the bottom of the liquid collecting tank 11, so that the pressure plate 52 can move to the bottom of the liquid collecting tank 11 under the maximum pressure to press the liquid medicine in the liquid collecting tank 11 into the guide pipe 51 at one time.

The difference between the implementation mode of the second embodiment of the present application and the implementation principle of the first embodiment of the present application is: when slow injection is performed, different pressures can be applied to the pressing piece 3 as required, so that the second return springs 42 with different lengths are compressed, the pressing plate 52 descends to different heights, the amount of the liquid medicine sprayed from the guide pipe 51 is different, and the amount of the liquid medicine is relatively accurately controlled.

Finally, the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting, although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application, and all the technical solutions of the present application should be covered by the claims of the present application.

Claims

1. An air flue humidifying device is characterized in that: the liquid storage bottle comprises a liquid storage bottle (1) with an upper opening structure and a pressing type spray head assembly arranged at an upper opening of the liquid storage bottle (1), wherein a liquid collecting tank (11) with an upper opening structure is arranged at the inner bottom of the liquid storage bottle (1), the pressing type spray head assembly comprises a connecting piece (2) detachably connected to the liquid storage bottle (1), a pressing piece (3) connected to the connecting piece (2) in a sliding manner along the opening direction of the liquid storage bottle (1), a resetting piece (4) fixed on the connecting piece (2) and enabling the pressing piece (3) to be far away from the liquid storage bottle (1) in a sliding manner, and a liquid absorbing piece (5) guiding out liquid medicine in the liquid storage bottle (1) in the process that the pressing piece (3) moves towards the liquid storage bottle (1); the connecting piece (2) penetrates along the opening direction of the liquid storage bottle (1) to form an opening, a first air hole (211) and a second air hole (221) are formed in the connecting piece (2), the first air hole (211) is communicated with the outside and the inside of the connecting piece (2), and the second air hole (221) is communicated with the inside of the connecting piece (2) and the inside of the liquid storage bottle (1); the liquid suction piece (5) comprises a guide pipe (51) and a pressing plate (52) which is transversely arranged, one end of the guide pipe (51) is arranged in the pressing piece (3) and extends out of the pressing piece (3), the other end of the guide pipe (51) extends towards the bottom of the liquid storage bottle (1), the pressing plate (52) is transversely arranged at the upper opening of the liquid collecting tank (11) and forms a distance with the liquid collecting tank (11), the pressing plate (52) is fixed at the end part of the guide pipe (51) and is penetrated by the guide pipe (51), and the circumferential curved surface of the pressing plate (52) and the curved surface formed by the inner wall of the liquid collecting tank (11) are located on the same curved surface.

2. An airway humidification device as in claim 1 wherein: the connecting piece (2) comprises a vertical part (21) and a fixing plate (22), a stepped opening with a small upper part and a large lower part is formed in the vertical part (21) in a penetrating mode along the opening direction of the liquid storage bottle (1), one end of the vertical part (21) is connected to the liquid storage bottle (1) in a threaded mode, and the fixing plate (22) is transversely arranged at one end, close to the liquid storage bottle (1), of the vertical part (21) and penetrates through the fixing plate (51); first air hole (211) are seted up in vertical portion (21), fixed plate (22) are seted up in second air hole (221), pressing piece (3) and piece (4) that resets all set up in one side that fixed plate (22) deviate from liquid storage bottle (1) and reset piece (4) and are fixed in fixed plate (22).

3. An airway humidification device as claimed in claim 2 in which: the pressing piece (3) comprises a plug body (31) and a pressing part (32), the plug body (31) is abutted to the inner wall of the vertical part (21) in the circumferential direction, and the pressing part (32) is located on one side, away from the liquid storage bottle (1), of the plug body (31); the guide tube (51) penetrates into the plug body (31) and the pressing part (32) at the same time and penetrates out of the pressing part (32).

4. An airway humidification device as claimed in claim 3 in which: a check valve (222) is fixed in the second air hole (221).

5. An airway humidification device as in claim 4 wherein: the first air hole (211) is communicated with one end, away from the liquid storage bottle (1), of the vertical part (21) through the opening on the inner side of the vertical part (21), and when the resetting piece (4) is in a natural state, the first air hole (211) is communicated with the opening on the inner side of the vertical part (21) and is located on the lower side of the pressing piece (3).

6. An airway humidification device as claimed in claim 5 in which: the resetting piece (4) comprises a plurality of first resetting springs (41) with the same length, the first resetting springs (41) are fixed on the fixing plate (22), and the maximum compression amount of the first resetting springs (41) is larger than the distance from the pressure plate (52) to the bottom of the liquid collecting tank (11).

7. An airway humidification device as claimed in claim 5 in which: the reset piece (4) comprises a plurality of second reset springs (42) with different lengths, and the second reset springs (42) are fixed on the fixing plate (22).

8. An airway humidification device as claimed in claim 7 in which: when the second return spring (42) with the minimum length is in a state of the maximum compression amount, the distance from the second return spring (42) to the shaft shoulder of the vertical part (21) is larger than the maximum distance from the pressure plate (52) to the bottom of the liquid collecting tank (11).

9. An airway humidification device as claimed in claim 5 in which: the bottom of the liquid storage bottle (1) is downwards inclined towards the liquid collecting groove (11) and communicated with the notch end of the liquid collecting groove (11).

10. An airway humidification device as claimed in claim 9 in which: the opening of the liquid storage bottle (1) is a circular opening, the pressing plate (52) is a circular plate, and the area of the plate surface of the pressing plate (52) is smaller than that of the opening of the liquid storage bottle (1).