CN212548175U - Breathe internal medicine with breathing trainer - Google Patents

Abstract

The utility model discloses a respiratory training device for respiratory medicine, which comprises a cavity tube, wherein the front end part of the cavity tube is provided with a blowing nozzle, the outer wall of the blowing nozzle is sleeved with a rotating ring, the upper part and the lower part of the rotating ring, which are close to one end surface of the blowing nozzle, are respectively and rotatably connected with a first arc-shaped brush plate and a second arc-shaped brush plate, and the bottoms of the first arc-shaped brush plate and the second arc-shaped brush plate are respectively and adhesively connected with a water-absorbing sponge; the top and the bottom of the cavity tube are symmetrically provided with a plurality of installation tubes which are parallel to each other and the side walls of which are provided with flow regulating valves, the outlet of the cavity tube is in threaded connection with an air purification tube with the tail part provided with a filter screen, and medical alcohol cotton is filled in the air purification tube; the utility model is not only suitable for users of different ages, but also the strength of the breathing training can be flexibly adjusted; the blowing nozzle can be disinfected and cleaned, and gas exhaled by a user can be disinfected and sterilized; the phenomenon that other people are cross-infected due to bacteria and viruses carried in the exhaled air is reduced.

Description

Breathe internal medicine with breathing trainer

Technical Field

The application relates to the field of medical appliances, in particular to a respiratory training device for respiratory medicine.

Background

There are many lung injured patients in respiratory medicine, need carry out the rehabilitation training of lung to it after a period of treatment, let its motion function who resumes the lung, and its vital capacity for patient can be normal carry out daily life, keep away from the breathing machine.

Although the prior respiratory training device can perform rehabilitation training on the lung of a patient to a certain extent, the prior respiratory training device still has the following defects:

1. can not be suitable for trainers of different ages, the strength of the respiratory training of the trainer can not be flexibly adjusted, and the function is relatively single.

2. The gas exhaled by the trainer can not be sterilized and disinfected, and the phenomenon of cross infection of other people caused by carrying bacteria and viruses in the gas exhaled by the trainer exists, so that potential safety hazards exist.

3. The blowing nozzle of the breathing training device cannot be sterilized and cleaned quickly and effectively, and if bacteria or viruses exist on the blowing nozzle, the bacteria or viruses may enter the body through the mouth of a trainer, so that the health of the trainer is damaged.

Disclosure of Invention

The utility model discloses the purpose is: provides a respiratory training device for respiratory medicine, which is used for solving the technical problems in the background technology.

The technical scheme of the utility model is that: a respiratory training device for respiratory medicine comprises a cavity tube, wherein a blowing nozzle is arranged at the front end part of the cavity tube, a rotating ring is sleeved on the outer wall of the blowing nozzle, the upper part and the lower part of the rotating ring, which are close to one end surface of the blowing nozzle, are respectively and rotatably connected with a first arc-shaped brush plate and a second arc-shaped brush plate, and the bottoms of the first arc-shaped brush plate and the second arc-shaped brush plate are respectively and adhesively connected with water-absorbing sponge; the top and the bottom of the cavity tube are symmetrically provided with a plurality of installation tubes which are parallel to each other and the side walls of which are provided with flow regulating valves, the inner wall of each installation tube is in threaded connection with a cover body with a spherical top, and the inner wall at the port of the cover body is in threaded connection with a connecting tube with the top being glued with an inflatable ball; the top of each cover body on the same side is connected with an air duct communicated with the cover body, and each air duct on the same side is finally converged at a medical rubber inflatable ball; the outlet of the cavity tube is in threaded connection with an air purifying tube with a filter screen at the tail part, and medical alcohol cotton is filled in the air purifying tube.

Preferably, a set of mounting lugs are symmetrically arranged on the upper portion and the lower portion of one end face, close to the blowing nozzle, of the rotating ring, connecting rods rotatably connected with the mounting lugs are arranged at the rear end portions of the first arc-shaped brush plate and the second arc-shaped brush plate, limiting insertion holes matched with each other are formed in the front end portions of the mounting lugs and the rear end portions of the connecting rods, and threaded studs of nuts are inserted into the limiting insertion holes in a threaded connection mode. Wherein, rotate between connecting rod and the installation auricle and be connected and can guarantee that first arc brush board and second arc brush board can longitudinal rotation, be convenient for disinfect and clean the outer wall of blow gun. And the cooperation between the spacing jack on double-screw bolt, nut, installation auricle and the connecting rod is used and can be fixed first arc brush board and second arc brush board, is convenient for realize disinfecting and cleaning work to the blow gun outer wall through rotatory swivel.

Preferably, a plurality of arc lugs perpendicular to the rotation ring are circumferentially arranged on the outer wall of the rotation ring, and the water absorption sponges at the bottoms of the first arc brush plate and the second arc brush plate are in close contact with the outer wall of the blowing nozzle. Wherein, spray medical alcohol to the sponge that absorbs water of first arc brush board/second arc brush board bottom through the atomizer, then through rotating the swivel, accomplish the work of disinfecting to the blow gun outer wall. Then, the atomizer sprays distilled water on the water absorption sponge at the bottom of the second arc brush plate/the first arc brush plate, and then the rotating ring is rotated to complete the cleaning work of the outer wall of the blowing nozzle. Thereby ensuring that the user can be cleaner and more sanitary when using the utility model. The harm to the health of the user caused by bacteria on the surface of the mouthpiece is reduced.

Preferably, a group of triangular supports which are parallel to each other is fixedly arranged at the bottom of the cavity tube, and rubber pads are connected to the bottoms of the triangular supports in an intersecting mode. Wherein, the use of triangle-shaped support can be right the utility model discloses play fine supporting role, be convenient for the utility model discloses a place, the person of facilitating the use uses. Simultaneously, the use of rubber pad can increase the frictional force between triangle-shaped support and its holding surface, has guaranteed the utility model discloses stability during the use.

Preferably, the inner wall of the end opening of the cover body and the inner wall of the mounting pipe are both provided with internal threads, and the outer wall of the end opening of the cover body and the outer wall of the connecting pipe are both provided with external threads; and the installation tube is communicated with the inner cavity of the cavity tube. Wherein, cover body port department and connecting pipe between through threaded connection for it is all more convenient and swift when installation and dismantlement.

Preferably, the outer wall of the lower part of the port of the cover body is provided with a group of arc-shaped lugs, and the outer wall of the port of the connecting pipe is circumferentially provided with anti-skid grains. The use of the arc-shaped lug pieces is convenient for a user to install or dismantle the cover body, and the arrangement of the anti-slip grains is convenient for installing and dismantling the connecting pipe and the inflatable ball.

Preferably, an exhaust pipe communicated with the inner cavity of the cavity pipe is arranged at the outlet of the cavity pipe, external threads are arranged on the outer wall of the exhaust pipe, and internal threads matched with the exhaust pipe are arranged on the front half part of the inner wall of the gas purification pipe. Wherein, pass through threaded connection between blast pipe and the gas purification pipe for the installation of gas purification pipe is all convenient and swift with dismantling. Moreover, the medical alcohol surface filled in the gas purification pipe can sterilize and disinfect the gas exhaled by the user, and the phenomenon that other people are cross-infected due to bacteria and viruses carried in the exhaled gas is reduced. Is very sanitary and safe.

Preferably, the cavity tube, the cover body, the mounting tube and the connecting tube are all made of transparent plastics; the inflation condition of the inflatable ball can be observed in real time by a user, and the strength and the score of the breathing exercise of the user can be conveniently obtained. The top of the cover body is provided with a connecting pipe body communicated with the inner cavity of the cover body; the side wall of the connecting pipe body is provided with a flow regulating valve, and the connecting pipe body is communicated with the medical rubber inflatable ball through an air duct. By adjusting the flow regulating valve on the side wall of the connecting pipe body and matching with the use of the medical rubber inflatable ball, air can be blown into the inner cavities of different cover bodies so as to increase the pressure intensity of the inner cavities and increase the resistance of a user during air blowing (namely the pressure to be overcome when the inflatable ball in the cover body is inflated). When having improved the breathing training effect, also widened the utility model discloses a application range.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the user of different age bracket closes the flow control valve of different quantity according to its actual conditions, carries out the breathing rehabilitation training of suitable intensity to it through using the inflatable ball of different quantity. Moreover, air is blown into the inner cavities of different cover bodies through the medical rubber inflatable ball so as to increase the pressure intensity of the inner cavities and increase the resistance of a user during air blowing (namely the pressure to be overcome when the inflatable ball in the cover bodies is inflated). When having improved the breathing training effect, also widened the utility model discloses a application range.

2. The utility model discloses can realize disinfecting and wasing the outer wall of mouthpiece port department to reduce the harm healthy to the user because of the bacterium on mouthpiece surface. Moreover, the use of the medical alcohol cotton can sterilize and disinfect the gas exhaled by the user. The phenomenon that other people are cross-infected due to bacteria and viruses carried in the exhaled air is reduced. Is very sanitary and safe.

3. The use of triangle-shaped support can be right the utility model discloses play fine supporting role, be convenient for the utility model discloses a place, do not need the long-time handheld of user the utility model discloses, only need with it place on holding surfaces such as desktop can, liberated user's both hands, the person of facilitating the use uses. Simultaneously, the use of rubber pad can increase the frictional force between triangle-shaped support and its holding surface, has guaranteed the utility model discloses stability during the use.

4. The exhaust pipe is connected with the gas purification pipe through threads, so that the gas purification pipe is convenient and quick to mount and dismount. And the medical alcohol cotton is convenient to replace in time. The swivel is sleeved on the outer wall of the blowing nozzle, and is convenient to detach, and the cleaning and disinfecting work of the water absorption sponge at the bottoms of the first arc-shaped brush plate and the second arc-shaped brush plate is achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic longitudinal sectional view of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is a schematic view of the connection of the partial structure of the present invention;

FIG. 5 is an enlarged schematic view at B in FIG. 4;

fig. 6 is a schematic view of a partial structure of the present invention;

FIG. 7 is a schematic view of the connection between the inflatable ball and the connecting tube according to the present invention;

fig. 8 is a schematic structural view of the middle gas purification pipe of the present invention.

Wherein: 1 cavity tube; 2, blowing a nozzle; 3, rotating; 4, a first arc-shaped brush plate; 5, a second arc-shaped brush plate; 6, water-absorbing sponge; 7, installing a pipe; 8, covering the cover body; 9, inflating a ball; 10 connecting pipes; 11 an air duct; 12 medical rubber inflatable ball; 13, filtering by using a filter screen; 14 a gas purge tube; 15 medical alcohol cotton; 16 mounting a lug; 17 connecting rods; 18 a nut; 19 a stud; 20 triangular brackets; 21, a rubber pad; 22 anti-skid lines; 23 exhausting pipes; 24 are connected to the tube body.

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to specific conditions, and the conditions used in the experiments are not specifically mentioned.

As shown in fig. 1 to 8, a respiratory training device for respiratory medicine comprises a cavity tube 1, wherein a blowing nozzle 2 is arranged at the front end part of the cavity tube 1, a rotating ring 3 is sleeved on the outer wall of the blowing nozzle 2, the upper part and the lower part of the rotating ring 3, which are close to one end surface of the blowing nozzle 2, are respectively and rotatably connected with a first arc-shaped brush plate 4 and a second arc-shaped brush plate 5, and the bottoms of the first arc-shaped brush plate 4 and the second arc-shaped brush plate 5 are respectively and adhesively connected with a water absorption sponge 6; the top and the bottom of the cavity tube 1 are symmetrically provided with a plurality of parallel mounting tubes 7 with flow regulating valves on the side walls, the inner wall of the mounting tube 7 is in threaded connection with a cover body 8 with a spherical top, and the inner wall at the port of the cover body 8 is in threaded connection with a connecting tube 10 with the top being glued with an inflatable ball 9; the top of each cover body 8 on the same side is connected with a gas-guide tube 11 communicated with the cover body, and each gas-guide tube 11 on the same side is finally converged at a medical rubber inflatable ball 12; an outlet of the cavity tube 1 is in threaded connection with an air purifying tube 14 with a filter screen 13 at the tail part, and the air purifying tube 14 is filled with medical alcohol cotton 15.

In this embodiment, a set of mounting lugs 16 are respectively and symmetrically arranged on the upper portion and the lower portion of one end surface of the rotary ring 3, which is close to the blowing nozzle 2, the rear end portions of the first arc-shaped brush plate 4 and the second arc-shaped brush plate 5 are respectively provided with a connecting rod 17 rotatably connected with the mounting lugs 16, the front end portion of the mounting lugs 16 and the rear end portion of the connecting rod 17 are provided with limiting insertion holes which are matched with each other, and a stud 19 of which the end portion is in threaded connection with a nut 18 is inserted in the limiting insertion holes. Wherein, rotate between connecting rod 17 and the installation auricle 16 and be connected and can guarantee that first arc brush board 4 and second arc brush board 5 can longitudinal rotation, be convenient for disinfect and clean the outer wall of blow gun 2. And the cooperation between the spacing jack on double-screw bolt 19, nut 18, installation auricle 16 and the connecting rod 17 is used and can be fixed first arc brush board 4 and second arc brush board 5, is convenient for realize disinfecting and cleaning work to the blow gun 2 outer wall through rotatory change 3.

In this embodiment, a plurality of arc-shaped lugs perpendicular to the rotation ring 3 are circumferentially arranged on the outer wall of the rotation ring, and the water-absorbing sponges 6 at the bottoms of the first arc-shaped brush plate 4 and the second arc-shaped brush plate 5 are both in close contact with the outer wall of the blowing nozzle 2. Wherein, spray medical alcohol to the sponge 6 that absorbs water of first arc brush board 4 second arc brush board 5 bottom through the atomizer, then through rotating swivel 3, accomplish the work of disinfecting to the 2 outer walls of blow gun. Then, the distilled water is sprayed on the water absorption sponge 6 at the bottom of the second arc-shaped brush plate 5/the first arc-shaped brush plate 4 through the atomizer, and then the rotating ring 3 is rotated to complete the cleaning work of the outer wall of the blowing nozzle 2. Thereby ensuring that the user can be cleaner and more sanitary when using the utility model. Reducing the harm to the health of the user caused by bacteria on the surface of the mouthpiece 2.

In this embodiment, a set of parallel triangular supports 20 is fixed on the bottom of the chamber tube 1, and rubber pads 21 are connected to the bottoms of the triangular supports 20. Wherein, triangle-shaped support 20's use can be right the utility model discloses play fine supporting role, be convenient for the utility model discloses a place, do not need the user to hold for a long time the utility model discloses, only need with it place on holding surfaces such as desktops can, liberated user's both hands, the person of facilitating the use uses. Simultaneously, the use of rubber pad 21 can increase the frictional force between triangle-shaped support 20 and its holding surface, has guaranteed the utility model discloses stability during the use.

In this embodiment, the inner wall of the port of the cover body 8 and the inner wall of the mounting pipe 7 are both provided with internal threads, and the outer wall of the port of the cover body 8 and the outer wall of the connecting pipe 10 are both provided with external threads; and the installation tube 7 is communicated with the inner cavity of the cavity tube 1. Wherein, through threaded connection between 8 port departments of the cover body and the connecting pipe 10 for it is all convenient and swift when installation and dismantlement. And the maximum outer diameter of the connection pipe 10 is smaller than the inner diameter of the installation pipe 7.

In this embodiment, a set of arc-shaped lugs is arranged on the outer wall of the lower part of the port of the cover body 8, and anti-slip threads 22 are circumferentially arranged on the outer wall of the port of the connecting pipe 10. The use of the arc-shaped lug plate is convenient for a user to install or dismantle the cover body 8, and the anti-skid grains 22 are arranged to facilitate the installation and the disassembly of the connecting pipe 10 and the inflatable ball 9.

In this embodiment, an exhaust pipe 23 communicated with the inner cavity of the chamber pipe 1 is disposed at the outlet of the chamber pipe, an external thread is disposed on the outer wall of the exhaust pipe 23, and an internal thread matched with the exhaust pipe 23 is disposed at the front half part of the inner wall of the gas purification pipe 14. Wherein, the exhaust pipe 23 is connected with the gas purifying pipe 14 by screw threads, so that the gas purifying pipe 14 can be conveniently and quickly assembled and disassembled. Moreover, the medical alcohol surface filled in the gas purification pipe 14 can sterilize and disinfect the gas exhaled by the user, and the phenomenon that other people are cross-infected due to bacteria and viruses carried in the exhaled gas is reduced. Is very sanitary and safe.

In this embodiment, the cavity tube 1, the cover body 8, the mounting tube 7 and the connecting tube 10 are all made of transparent plastics; the inflation condition of the inflatable ball 9 can be observed in real time by a user, and the strength and the score of the breathing exercise of the user can be conveniently obtained. The top of the cover body 8 is provided with a connecting pipe body 24 communicated with the inner cavity of the cover body; the side wall of the connecting tube body 24 is provided with a flow regulating valve, and the connecting tube body 24 is communicated with the medical rubber inflatable ball 12 through the air duct 11. By adjusting the flow control valve on the side wall of the connecting pipe body 24 and matching with the use of the medical rubber inflatable ball 12, air can be blown into the inner cavities of different cover bodies 8 so as to increase the pressure intensity of the inner cavities and increase the resistance of a user during air blowing (namely the pressure to be overcome when the inflatable ball 9 in the cover body 8 is inflated). When having improved the breathing training effect, also widened the utility model discloses a application range.

Before using the utility model discloses, take off stud 19 and nut 18 of first arc brush board 4 second arc brush board 5 department earlier, then spray medical alcohol on the sponge 6 that absorbs water of first arc brush board 4 second arc brush board 5 bottom through the atomizer, rotate it again as for 2 outer wall in close contact with of blow gun. Then the stud 19 and the nut 18 are mounted to fix the first arc-shaped brush plate 4/the second arc-shaped brush plate 5. Then the stud 19 and the screw cap 18 at the position of the first ear arc-shaped brush plate/the first arc-shaped brush plate 4 are taken down, distilled water is sprayed on the water absorption sponge 6 at the bottom of the second arc-shaped brush plate 5/the first arc-shaped brush plate 4 through the atomizer, and then the water absorption sponge is rotated to the outer wall of the blowing nozzle 2 to be in close contact with the outer wall of the blowing nozzle. Then the stud 19 and the nut 18 are mounted to fix the second arcuate brush plate 5/the first arcuate brush plate 4. The installation is finished and then the rotating ring 3 is slowly rotated, so that the sterilization (medical alcohol) and the cleaning (distilled water) of the outer wall at the port of the blowing nozzle 2 are realized, and the harm to the health of a user caused by bacteria on the surface of the blowing nozzle 2 is reduced. After the operation is finished, the stud 19 and the screw cap 18 are taken down, and the second arc-shaped brush plate 5 and the first arc-shaped brush plate 4 are rotated backwards to a proper inclination angle, so that the mouthpiece 2 is not influenced by a user, namely, the mouth of the user is ensured to be in close contact with the outer wall of the mouthpiece 2.

Then when carrying out the respiratory training, the user of different age brackets closes the flow control valve of different quantity according to its actual conditions, carries out the respiratory rehabilitation training of suitable intensity to it through the inflatable ball 9 that uses different quantity. Moreover, air is blown into the cavities of different cover bodies 8 through the medical rubber inflatable ball 12 to increase the pressure intensity of the cavities and increase the resistance of the user during air blowing (namely the pressure to be overcome when the inflatable ball 9 in the cover body 8 is inflated). When having improved the breathing training effect, also widened the utility model discloses a application range. When a user carries out breathing training, the gas exhaled by the user finally passes through the medical alcohol cotton 15 filled in the gas purifying pipe 14, and the gas exhaled by the user can be sterilized and disinfected by using the medical alcohol cotton 15. The phenomenon that other people are cross-infected due to bacteria and viruses carried in the exhaled air is reduced. Is very sanitary and safe.

Additionally, the utility model discloses in, the use of triangle-shaped support 20 can be right the utility model discloses play fine supporting role, be convenient for the utility model discloses a place, do not need the long-time handheld of user the utility model discloses, only need with it place on holding surfaces such as desktops can, liberated user's both hands, the person of facilitating the use uses. Simultaneously, the use of rubber pad 21 can increase the frictional force between triangle-shaped support 20 and its holding surface, has guaranteed the utility model discloses stability during the use.

Moreover, the exhaust pipe 23 is connected with the gas purifying pipe 14 through threads, so that the gas purifying pipe 14 can be conveniently and quickly mounted and dismounted. And the medical alcohol cotton 15 can be replaced in time. The rotating ring 3 is sleeved on the outer wall of the blowing nozzle 2, is convenient to detach, and cleans and sterilizes the water absorption sponge 6 at the bottoms of the first arc-shaped brush plate 4 and the second arc-shaped brush plate 5.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. In addition to the above embodiments, other embodiments of the present invention are also possible. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention as claimed.

Claims (8)

1. The utility model provides a breathe internal medicine with breathing trainer, includes chamber pipe (1), its characterized in that: a blowing nozzle (2) is arranged at the front end part of the cavity tube (1), a rotating ring (3) is sleeved on the outer wall of the blowing nozzle (2), the upper part and the lower part of the rotating ring (3) close to one end face of the blowing nozzle (2) are respectively and rotatably connected with a first arc-shaped brush plate (4) and a second arc-shaped brush plate (5), and the bottoms of the first arc-shaped brush plate (4) and the second arc-shaped brush plate (5) are respectively and adhesively connected with a water absorption sponge (6); the top and the bottom of the cavity tube (1) are symmetrically provided with a plurality of parallel mounting tubes (7) with flow regulating valves on the side walls, the inner wall of each mounting tube (7) is in threaded connection with a cover body (8) with a spherical top, and the inner wall at the port of the cover body (8) is in threaded connection with a connecting tube (10) with the top being glued with an inflatable ball (9); the top of each cover body (8) on the same side is connected with a gas guide tube (11) communicated with the cover body, and each gas guide tube (11) on the same side is finally converged at a medical rubber inflatable ball (12); the outlet of the cavity tube (1) is in threaded connection with a gas purification tube (14) with a filter screen (13) at the tail part, and medical alcohol cotton (15) is filled in the gas purification tube (14).

2. A breath training device for department of respiratory medicine according to claim 1, wherein: the upper and lower part that swivel (3) is close to a terminal surface of blow gun (2) do not the symmetry be equipped with a set of installation auricle (16), the rear end portion of first arc brush board (4) and second arc brush board (5) all is equipped with and rotates connecting rod (17) of being connected with installation auricle (16), the spacing jack of mutually supporting is seted up to the preceding tip of installation auricle (16) and the rear end portion of connecting pipe (10), it has double-screw bolt (19) of tip threaded connection nut (18) to peg graft in the spacing jack.

3. A breath training device for department of respiratory medicine according to claim 1, wherein: the outer wall of the rotating ring (3) is circumferentially provided with a plurality of arc lugs which are perpendicular to the rotating ring, and the water absorption sponges (6) at the bottoms of the first arc brush plate (4) and the second arc brush plate (5) are in close contact with the outer wall of the blowing nozzle (2).

4. A breath training device for department of respiratory medicine according to claim 1, wherein: the bottom of the cavity tube (1) is fixedly provided with a group of mutually parallel triangular supports (20), and the bottoms of the triangular supports (20) are crossed with rubber pads (21).

5. A breath training device for department of respiratory medicine according to claim 1, wherein: internal threads are formed in the inner wall of the port of the cover body (8) and the inner wall of the mounting pipe (7), and external threads are formed in the outer wall of the port of the cover body (8) and the outer wall of the connecting pipe (10); and the installation tube (7) is communicated with the inner cavity of the cavity tube (1).

6. A breath training device for department of respiratory medicine according to claim 1, wherein: the outer wall of the lower part of the port of the cover body (8) is provided with a group of arc lugs, and the outer wall of the port of the connecting pipe (10) is circumferentially provided with anti-skid grains (22).

7. A breath training device for department of respiratory medicine according to claim 1, wherein: an exhaust pipe (23) communicated with the inner cavity of the cavity pipe (1) is arranged at the outlet of the cavity pipe, external threads are arranged on the outer wall of the exhaust pipe (23), and internal threads matched with the exhaust pipe (23) are arranged at the front half part of the inner wall of the gas purification pipe (14).

8. A breath training device for department of respiratory medicine according to claim 1, wherein: the cavity tube (1), the cover body (8), the mounting tube (7) and the connecting tube (10) are all made of transparent plastics; the top of the cover body (8) is provided with a connecting pipe body (24) communicated with the inner cavity of the cover body; the side wall of the connecting pipe body (24) is provided with a flow regulating valve, and the connecting pipe body (24) is communicated with the medical rubber inflatable ball (12) through the air duct (11).

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