Airway humidifying device capable of adjusting temperature and humidity

Abstract

The invention relates to the technical field of medical instruments, in particular to an airway humidifying device capable of adjusting temperature and humidity, a liquid collecting inclined cylinder is fixedly connected to one end of an insertion outer cylinder, a liquid collecting pipe is fixedly connected to one end, away from the insertion outer cylinder, of the liquid collecting inclined cylinder, and an insertion inner cylinder is fixedly connected to the inner side of the liquid collecting inclined cylinder; a connecting moving groove is formed in the inner side of the insertion inner cylinder, an inner isolation moving groove is formed in the insertion inner cylinder and communicates with the connecting moving groove, an inner isolation moving ring is slidably connected to the interior of the inner isolation moving groove in a clamped mode, and an outer moving sliding block is fixedly connected to the outer side of the inner isolation moving ring; the outer side of the outer moving sliding block is fixedly connected with an outer sealing ring, the outer sealing ring is clamped between the insertion outer cylinder and the insertion inner cylinder in a sliding mode, advanced mechanical design and an intelligent control technology are combined, effective management of airway humidity is achieved, and the breathing experience of a patient in different breathing states is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to an airway humidification device capable of adjusting temperature and humidity. Background Art

[0002] The airway humidifier is an important medical device connected between the ventilator and the patient, used to heat and humidify the inhaled gas. The principle of the medical airway humidifier is to heat and humidify the airflow so that the airflow passes through the hot water surface to be heated and humidified, and the heating temperature is controlled by setting a temperature control device, and this temperature can be monitored through a digital display.

[0003] In the prior art, airway humidification devices can relieve patients' discomfort by humidifying, but they may also increase the patient's sputum or mucus, and require regular cleaning and maintenance to avoid respiratory tract infections. The device needs to be removed each time it is cleaned and reinstalled after completion, which makes the patient feel uncomfortable. For this reason, the present invention provides an airway humidification device with adjustable temperature and humidity. Summary of the invention

[0004] The object of the present invention is to provide an airway humidification device capable of adjusting temperature and humidity to solve the problems raised in the above-mentioned background technology.

[0005] The technical solution of the present invention is: an airway humidification device capable of adjusting temperature and humidity, comprising an inserted outer cylinder, one end of the inserted outer cylinder is fixedly connected to a liquid collecting inclined cylinder, the end of the liquid collecting inclined cylinder away from the inserted outer cylinder is fixedly connected to a liquid collecting pipe, the inner side of the liquid collecting inclined cylinder is fixedly connected to an inserted inner cylinder, the inner side of the inserted inner cylinder is provided with a connecting movable groove, the interior of the inserted inner cylinder is provided with an inner isolating movable groove, the inner isolating movable groove is connected to the connecting movable groove, the inner side of the inner isolating movable groove is slidably connected with an inner isolating movable ring, the outer side of the inner isolating movable ring is fixedly connected to an outer movable slider, the outer side of the outer movable slider is fixedly connected to An outer sealing ring is connected, the outer sealing ring is slidably clamped between the inserted outer cylinder and the inserted inner cylinder, a fixed outer ring is fixedly connected between the inserted inner cylinder and the inserted outer cylinder, a liquid collecting groove is provided on the outer side of the inserted outer cylinder, a suction hole connected to the inside of the inserted outer cylinder is provided at the end of the liquid collecting groove, the suction hole is located between the outer sealing ring and the fixed outer ring, two liquid suction telescopic columns are clamped at the end arc of the liquid collecting groove on the outer side of the inserted outer cylinder, a liquid suction pull plate is fixedly connected to the top of the liquid suction telescopic column, the liquid suction pull plate is slidably clamped to the inner side of the suction hole, a liquid suction sealing plate is fixedly connected to the top of the suction hole, and the end of the liquid suction telescopic column away from the liquid suction pull plate is fixedly connected The invention provides a micro-spring for absorbing liquid, which is installed inside the inserted outer cylinder, and a row of holes is provided on the inner side of the fixed outer ring, and a limited trapezoidal column is slidably engaged inside the row of holes, and the inner side of the inserted outer cylinder is fixedly connected to the limited inner column, and the limited inner column is slidably engaged with the inner side of the limited trapezoidal column, and a limited micro-spring is provided on the outer side of the limited inner column; when in use: by placing the inserted outer cylinder in the patient's mouth or nose, the outer movable slider and the outer sealing ring are driven to move back and forth by controlling the back and forth movement of the inner isolation movable ring, and the distance between the outer sealing ring and the fixed outer ring is controlled, and when moving away, the liquid absorbing telescopic column is pulled to contract by pressure to make the liquid absorbing pull The plate opens the suction hole to suck the sputum or mucus inside the liquid collecting tank, so that it enters between the outer sealing ring and the fixed outer ring. Then the liquid suction pull plate is pushed to reset by the liquid suction micro-spring, so that the outer sealing ring is close to the fixed outer ring to squeeze the inside. The liquid suction pull plate is limited by the suction hole, and the pressure will push the inclined surface of the limiting trapezoidal column to make the limiting trapezoidal column move outward a little, so that the discharge hole is opened, and the sputum or mucus is discharged to the other side of the fixed outer ring, and finally enters the interior of the liquid collecting tube through the liquid collecting inclined cylinder for collection. After completion, the limiting trapezoidal column is pushed to reset by the limiting micro-spring. Because when sucking liquid, the other side of the limiting trapezoidal column is a vertical surface and will not be opened by pressure.

[0006] Preferably, the interior of the inner isolation moving ring is fixedly connected with an inner moving slider, the inner side of the inner moving slider is fixedly connected with an inner sealing ring, and the inner sealing ring is slidably engaged with the inner side of the inserted inner cylinder, the inner side of the inserted inner cylinder is fixedly connected with an air guide mounting plate, one side of the air guide mounting plate is fixedly connected with a fixed telescopic cylinder, the inner side of the fixed telescopic cylinder is slidably engaged with a fixed telescopic column, a fixed telescopic spring is installed on the inner side of the fixed telescopic cylinder, a sealing ball is fixedly connected with the side of the fixed telescopic column away from the fixed telescopic spring, and the sealing ball is tightly attached to the inner side of the inner sealing ring, an air injection capillary is fixedly connected between the inserted inner cylinder and the inserted outer cylinder, the air injection capillary is located between the air guide mounting plate and the sealing ball, an air distribution hole is fixedly connected to the interior of the air guide mounting plate, one side of the inner isolation moving ring is fixedly connected with a control moving rod, and the control moving ring is fixedly connected with the outer side of the inserted inner cylinder at one end The vents are connected to the air filter by means of a venting device, and the vents are connected to the air filter by means of a venting device.

[0007] The present invention provides an airway humidification device capable of adjusting temperature and humidity by improvement, which has the following improvements and advantages compared with the prior art:

[0008] First, the airway humidification device capable of adjusting temperature and humidity described in the present invention is configured to insert an outer cylinder into the patient's mouth or nose, control the back-and-forth movement of the inner isolation movable ring to drive the back-and-forth movement of the outer movable slider and the outer sealing ring, and control the spacing between the outer sealing ring and the fixed outer ring. When moving away, the liquid suction telescopic column is pulled to contract by pressure, so that the liquid suction pull plate opens the suction hole, and the sputum or mucus inside the liquid collection tank is sucked into between the outer sealing ring and the fixed outer ring. After that, the liquid suction pull plate is pushed to reset by the liquid suction micro spring, so that the outer sealing ring is close to the fixed outer ring to squeeze the inside. The liquid suction pull plate is limited by the suction hole, and the pressure will push the inclined surface of the limiting trapezoidal column, so that the limiting trapezoidal column moves outward a little, so that the discharge hole is opened, so that the sputum or mucus is discharged to the other side of the fixed outer ring, and finally enters the inside of the liquid collection pipe through the liquid collecting inclined cylinder for collection. After completion, the limiting trapezoidal column is pushed to reset by the limiting micro spring, because when the liquid is sucked, the other side of the limiting trapezoidal column is a vertical surface and will not be opened by pressure.

[0009] Second: The airway humidification device with adjustable temperature and humidity described in the present invention, when the patient can breathe freely, the inner sealing ring and the sealing ball are tightly attached, and the moisture enters between the air guide mounting plate and the inner sealing ring by pushing the sealing ball, so that a part of the moisture directly enters the airway through the air distribution hole, and a small part is discharged to the inner wall of the airway outside the device through the gas injection capillary. When the patient cannot breathe freely, the inner sealing ring can be moved away from the sealing ball by moving the inner isolation moving ring, so that it can be opened for a long time, and the control moving ring can be moved and the control moving rod can be pulled to control one end of the inner isolation moving ring, and the inflatable ring is inserted into the top of the outer tube, so that when the device is in use, the patient's discomfort is relieved, and sputum or mucus enters the interior of the liquid collecting tank through the opening and then discharged;

[0010] Summary: The airway humidification device with adjustable temperature and humidity described in the present invention combines advanced mechanical design and intelligent control technology to achieve effective management of airway humidity and ensure the patient's breathing experience under different breathing conditions. In particular, this device can quickly adapt to various respiratory restriction conditions, effectively reduce the accumulation of sputum or mucus, improve breathing comfort, and optimize nursing work. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 It is a schematic diagram of the structure of the inserted outer cylinder of the present invention;

[0014] Figure 3 It is a schematic diagram of the structure of the control moving rod of the present invention;

[0015] Figure 4 It is a cross-sectional schematic diagram of the insertion inner cylinder of the present invention;

[0016] Figure 5 It is a schematic diagram of the structure of the outer sealing ring of the present invention;

[0017] Figure 6 It is a schematic diagram of the sealing ball structure of the present invention;

[0018] Figure 7 It is a schematic diagram of the fixed outer ring structure of the present invention;

[0019] Figure 8 It is a schematic diagram of the liquid collecting tank structure of the present invention.

[0020] Description of reference numerals:

[0021] 1. Insert the outer tube; 2. Insert the inner tube; 3. Liquid collecting inclined tube; 4. Liquid collecting tube; 5. Gas guide installation tube; 6. Control moving ring; 7. Control moving rod; 8. Inner isolating moving ring; 9. Connecting moving groove; 10. Gas injection capillary; 11. Inner isolating moving groove; 12. Outer moving slider; 13. Outer sealing ring; 14. Inner moving slider; 15. Inner sealing ring; 16. Gas guide installation plate; 17. Fixed telescopic tube; 18. Fixed telescopic column; 19. Fixed telescopic spring; 20. Sealing ball; 21. Air distribution hole; 22. Fixed outer ring; 23. Limit inner column; 24. Limit micro spring; 25. Limit trapezoidal column; 26. Liquid suction telescopic column; 27. Liquid suction micro spring; 28. Liquid suction pull plate; 29. ​​Liquid suction sealing plate; 30. Liquid collecting groove; 31. Inflatable ring. DETAILED DESCRIPTION

[0022] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The present invention provides an airway humidification device capable of adjusting temperature and humidity through improvement. The technical solution of the present invention is:

[0024] like Figure 1-Figure 8As shown, an airway humidification device capable of adjusting temperature and humidity comprises an inserted outer cylinder 1, one end of the inserted outer cylinder 1 is fixedly connected to a liquid collecting inclined cylinder 3, one end of the liquid collecting inclined cylinder 3 away from the inserted outer cylinder 1 is fixedly connected to a liquid collecting pipe 4, the inner side of the liquid collecting inclined cylinder 3 is fixedly connected to an inserted inner cylinder 2, the inner side of the inserted inner cylinder 2 is provided with a connecting movable groove 9, the inner side of the inserted inner cylinder 2 is provided with an inner isolating movable groove 11, the inner isolating movable groove 11 is connected with the connecting movable groove 9, the inner side of the inner isolating movable groove 11 is slidably connected to an inner isolating movable ring 8, the outer side of the inner isolating movable ring 8 is fixedly connected to an outer movable slider 12, the outer side of the outer movable slider 12 is fixedly connected to an outer sealing ring 13, and the outer sealing ring 13 is slidably connected to Between the inserted outer cylinder 1 and the inserted inner cylinder 2, a fixed outer ring 22 is fixedly connected between the inserted inner cylinder 2 and the inserted outer cylinder 1, a liquid collecting groove 30 is opened on the outer side of the inserted outer cylinder 1, and a suction hole connected to the inner side of the inserted outer cylinder 1 is opened at the end of the liquid collecting groove 30, and the suction hole is located between the outer sealing ring 13 and the fixed outer ring 22. Two liquid suction telescopic columns 26 are clamped at the end of the liquid collecting groove 30 on the outer side of the inserted outer cylinder 1, and a liquid suction pull plate 28 is fixedly connected to the top of the liquid suction telescopic column 26, and the liquid suction pull plate 28 is slidably clamped to the inner side of the suction hole, and a liquid suction sealing plate 29 is fixedly connected to the top of the suction hole, and a liquid suction micro spring 27 is fixedly connected to the end of the liquid suction telescopic column 26 away from the liquid suction pull plate 28. 7 is installed inside the outer tube 1, and a row of holes is opened inside the fixed outer ring 22. The inner side of the row of holes is slidably engaged with the limited trapezoidal column 25. The inner side of the inner tube 1 is fixedly connected with the limited inner column 23. The limited inner column 23 is slidably engaged with the inner side of the limited trapezoidal column 25. The outer side of the limited inner column 23 is provided with a limited micro spring 24. When in use: by inserting 1 into the outer tube and placing it in the patient's mouth or nose, the back and forth movement of the outer movable slider 12 and the outer sealing ring 13 is driven by controlling the back and forth movement of the inner isolation movable ring 8, and the distance between the outer sealing ring 13 and the fixed outer ring 22 is controlled. When moving away, the liquid suction telescopic column 26 is pulled to contract by pressure, so that the liquid suction pull plate 28 opens the suction hole to perform suction. The sputum or mucus inside the liquid collecting tank 30 is made to enter between the outer sealing ring 13 and the fixed outer ring 22, and then the liquid suction pull plate 28 is pushed to reset by the liquid suction micro spring 27, so that the outer sealing ring 13 is close to the fixed outer ring 22 to squeeze the inside, and the liquid suction pull plate 28 is limited by the suction hole. The pressure will push the inclined surface of the limiting trapezoidal column 25, so that the limiting trapezoidal column 25 moves outward a little, so that the discharge hole is opened, and the sputum or mucus is discharged to the other side of the fixed outer ring 22, and finally enters the interior of the liquid collecting tube 4 through the liquid collecting inclined cylinder 3 for collection. After completion, the limiting trapezoidal column 25 is pushed to reset by the limiting micro spring 24. Because when sucking liquid, the other side of the limiting trapezoidal column 25 is a vertical surface and will not be opened by pressure.

[0025] Further, the inner part of the inner isolating movable ring 8 is fixedly connected with an inner movable slider 14, the inner side of the inner movable slider 14 is fixedly connected with an inner sealing ring 15, the inner sealing ring 15 is slidably connected to the inner side of the inserted inner tube 2, the inner side of the inserted inner tube 2 is fixedly connected with an air guide mounting plate 16, one side of the air guide mounting plate 16 is fixedly connected with a fixed telescopic tube 17, the inner side of the fixed telescopic tube 17 is slidably connected with a fixed telescopic column 18, the inner side of the fixed telescopic tube 17 is installed with a fixed telescopic spring 19, and the fixed telescopic column 18 is away from the fixed telescopic spring 19. A sealing ball 20 is fixedly connected to one side of the inner cylinder 2, and the sealing ball 20 is tightly attached to the inner side of the inner sealing ring 15. A gas injection capillary 10 is fixedly connected between the inner cylinder 2 and the outer cylinder 1. The gas injection capillary 10 is located between the gas guide mounting plate 16 and the sealing ball 20. The inside of the gas guide mounting plate 16 is fixedly connected with a gas distribution hole 21. A control moving rod 7 is fixedly connected to one side of the inner isolation moving ring 8. The end of the control moving rod 7 away from the inner isolation moving ring 8 is fixedly connected to the control moving ring 6. The control moving ring 6 is slidably connected to the outer side of the inner cylinder 2. The inside of the cylinder 2 is fixedly connected with an air guide installation tube 5, which is connected to the moisture tube. The end of the outer cylinder 1 inserted away from the liquid collecting inclined cylinder 3 is fixedly connected with an inflatable ring 31. The inner side of the liquid collecting tank 30 near the inflatable ring 31 is provided with an opening connected to the inside of the outer cylinder 1 inserted, and the opening is located on the side of the outer sealing ring 13 away from the fixed outer ring 22. When in use: when the patient can breathe freely, the inner sealing ring 15 is tightly attached to the sealing ball 20, and the moisture enters between the air guide installation disk 16 and the inner sealing ring 15 by pushing the sealing ball 20, so that part of the moisture The air directly enters the airway through the air distribution hole 21, and a small part is discharged to the inner wall of the airway outside the device through the air injection tube 10. When the patient cannot breathe freely, the inner isolation movable ring 8 is moved to make the inner sealing ring 15 away from the sealing ball 20, so that it can be opened for a long time. By moving the control movable ring 6 and pulling the control movable rod 7, one end of the inner isolation movable ring 8 is controlled, and an inflation ring 31 is set on the top of the outer tube 1, so that when the device is in use, the patient's discomfort can be relieved, and sputum or mucus can enter the interior of the collecting tank 30 through the opening and then be discharged.

[0026] Working principle: When in use: insert 1 into the outer tube and place it in the patient's mouth or nose, control the back and forth movement of the inner isolation movable ring 8 to drive the back and forth movement of the outer movable slider 12 and the outer sealing ring 13, and control the distance between the outer sealing ring 13 and the fixed outer ring 22. When moving away, the suction telescopic column 26 is pulled to contract by pressure, so that the suction pull plate 28 opens the suction hole to suck the sputum or mucus inside the liquid collecting tank 30, so that it enters between the outer sealing ring 13 and the fixed outer ring 22, and then the suction pull plate 28 is pushed to reset by the suction micro spring 27, so that the outer sealing ring 13 is close to the fixed outer ring 22 to squeeze the inside, and the suction pull plate 28 is limited by the suction hole. The pressure will push the inclined surface of the limiting trapezoidal column 25, so that the limiting trapezoidal column 25 moves outward a little, so that the discharge hole is opened, and the sputum or mucus is discharged to the other side of the fixed outer ring 22, and finally enters the interior of the liquid collecting pipe 4 through the liquid collecting inclined cylinder 3 for collection. , after completion, the limiting trapezoidal column 25 is pushed to reset by the limiting micro-spring 24. Because when aspirating liquid, the other side of the limiting trapezoidal column 25 is a vertical surface and will not be opened by pressure. When the patient can breathe freely, the inner sealing ring 15 is tightly attached to the sealing ball 20, and moisture enters between the air guide mounting plate 16 and the inner sealing ring 15 by pushing the sealing ball 20, so that part of the moisture directly enters the airway through the air distribution hole 21, and a small part is discharged to the inner wall of the airway outside the device through the gas injection capillary 10. When the patient cannot breathe freely, the inner sealing ring 15 is moved away from the sealing ball 20 by moving the inner isolation moving ring 8, so that it can be opened for a long time. By moving the control moving ring 6 and pulling the control moving rod 7, one end of the inner isolation moving ring 8 is controlled, and an inflatable ring 31 is set on the top of the outer cylinder 1, so that when the device is in use, the patient's discomfort in the environment is relieved, and sputum or mucus enters the interior of the liquid collecting tank 30 through the opening and is then discharged.

[0027] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An airway humidification device capable of adjusting temperature and humidity, comprising (1) an insert outer cylinder, characterized in that: One end of the (1) inserted into the outer cylinder is fixedly connected to a liquid collecting inclined cylinder (3), and one end of the liquid collecting inclined cylinder (3) away from the (1) inserted into the outer cylinder is fixedly connected to a liquid collecting pipe (4). The inner side of the liquid collecting inclined cylinder (3) is fixedly connected to an inserted inner cylinder (2). A connecting movable groove (9) is provided on the inner side of the inserted inner cylinder (2). An inner isolating movable groove (11) is provided inside the inserted inner cylinder (2). The inner isolating movable groove (11) is connected to the connecting movable groove (9). An inner isolating movable ring (8) is slidably engaged inside the inner isolating movable groove (11). An outer movable slider (12) is fixedly connected to the outer side of (8), and an outer sealing ring (13) is fixedly connected to the outer side of the outer movable slider (12). The outer sealing ring (13) is slidably engaged between the (1) inserted outer cylinder and the inserted inner cylinder (2). A fixed outer ring (22) is fixedly connected between the inserted inner cylinder (2) and the (1) inserted outer cylinder. A liquid collecting groove (30) is provided on the outer side of the (1) inserted outer cylinder. A suction hole connected to the inside of the (1) inserted outer cylinder is provided at the end of the liquid collecting groove (30). The suction hole is located between the outer sealing ring (13) and the fixed outer ring (22).

2. The airway humidification device capable of adjusting temperature and humidity according to claim 1, characterized in that: The end of the liquid collecting groove (30) inserted into the outer side of the outer cylinder (1) is clamped with two liquid suction telescopic columns (26), the top of the liquid suction telescopic column (26) is fixedly connected with a liquid suction pull plate (28), the liquid suction pull plate (28) is slidably clamped on the inner side of the suction hole, the top of the suction hole is fixedly connected with a liquid suction sealing plate (29), and the end of the liquid suction telescopic column (26) away from the liquid suction pull plate (28) is fixedly connected with a liquid suction micro spring (27), and the liquid suction micro spring (27) is installed inside the outer cylinder (1) inserted into the outer cylinder.

3. The airway humidification device capable of adjusting temperature and humidity according to claim 2, characterized in that: The inner side of the fixed outer ring (22) is provided with a row of holes, and a limiting trapezoidal column (25) is slidably engaged inside the row of holes. The (1) is inserted into the inner side of the outer cylinder and fixedly connected to the limiting inner column (23). The limiting inner column (23) is slidably engaged with the inner side of the limiting trapezoidal column (25), and a limiting micro spring (24) is provided on the outer side of the limiting inner column (23).

4. The airway humidification device capable of adjusting temperature and humidity according to claim 3, characterized in that: The inner isolating movable ring (8) is fixedly connected to an inner movable slider (14), the inner side of the inner movable slider (14) is fixedly connected to an inner sealing ring (15), and the inner sealing ring (15) is slidably engaged with the inner side of the inserted inner cylinder (2).

5. The airway humidification device capable of adjusting temperature and humidity according to claim 4, characterized in that: An air guide mounting plate (16) is fixedly connected to the inner side of the inserted inner cylinder (2); a fixed telescopic cylinder (17) is fixedly connected to one side of the air guide mounting plate (16); a fixed telescopic column (18) is slidably engaged with the inner side of the fixed telescopic cylinder (17); a fixed telescopic spring (19) is mounted on the inner side of the fixed telescopic cylinder (17); a sealing ball (20) is fixedly connected to the side of the fixed telescopic column (18) away from the fixed telescopic spring (19); and the sealing ball (20) is in close contact with the inner side of the inner sealing ring (15).

6. The airway humidification device capable of adjusting temperature and humidity according to claim 5, characterized in that: A gas injection capillary (10) is fixedly connected between the inserted inner cylinder (2) and the inserted outer cylinder (1), the gas injection capillary (10) is located between the gas guide mounting plate (16) and the sealing ball (20), and a gas distribution hole (21) is fixedly connected inside the gas guide mounting plate (16).

7. The airway humidification device capable of adjusting temperature and humidity according to claim 6, characterized in that: A control moving rod (7) is fixedly connected to one side of the inner isolating movable ring (8); an end of the control moving rod (7) away from the inner isolating movable ring (8) is fixedly connected to a control moving ring (6); the control moving ring (6) is slidably engaged with the outer side of the inserted inner tube (2); an air guide installation tube (5) is fixedly connected to the inside of the inserted inner tube (2); and the air guide installation tube (5) is connected to the moisture tube.

8. The airway humidification device capable of adjusting temperature and humidity according to claim 3, characterized in that: An end of the (1) inserted outer cylinder away from the liquid collecting inclined cylinder (3) is fixedly connected to an inflation ring (31), and an opening communicating with the interior of the (1) inserted outer cylinder is provided on the inner side of the liquid collecting tank (30) close to the inflation ring (31), and the opening is located on a side of the outer sealing ring (13) away from the fixed outer ring (22).

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