CN217773145U

CN217773145U - Breathing training device with adjustable impedance

Info

Publication number: CN217773145U
Application number: CN202123382290.5U
Authority: CN
Inventors: 张亮; 娄文韬; 宋黎明; 刘杨
Original assignee: Contec Medical Systems Co Ltd
Current assignee: Contec Medical Systems Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-11-11
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses an impedance adjustable breathes training ware, include: the breathing device comprises a shell, a breathing/inhaling channel switching device and a ventilation regulating mechanism, wherein a breathing cavity is arranged in the shell, a first air port is arranged at the top of the shell, a second air port is arranged at the bottom of the shell, and the breathing/inhaling channel switching device is arranged in the breathing cavity; set up the inspiratory line in the breathing/inspiratory line conversion equipment, set up the breathing way between breathing/inspiratory line conversion equipment and the shell, the inspiratory line communicates with first gas port and second gas port respectively, breathing way communicates with first gas port and second gas port respectively, the inspiratory line sets up first check valve, breathing way sets up the second check valve that the direction is opposite with first check valve, the air output adjustment mechanism is mobilizable to be set up in breathing/inspiratory line conversion equipment to adjust the air output of breathing way, air output adjustment mechanism's outside protrusion is in the shell. The ventilation volume can be adjusted at the position of the breathing/breathing channel switching device by adjusting the ventilation volume adjusting mechanism, and the breathing/breathing channel switching device is convenient to carry, small in size and low in cost.

Description

Breathing training device with adjustable impedance

Technical Field

The utility model relates to the technical field of medical equipment, more specifically say, relate to an impedance adjustable breathing training ware.

Background

Respiratory training refers to a training method for ensuring the smoothness of respiratory tracts, improving respiratory muscle functions, promoting sputum excretion and sputum drainage, improving blood metabolism of lung and bronchial tissues and enhancing gas exchange efficiency. The breathing training device is a novel physiotherapy auxiliary appliance for carrying out respiratory muscle training, and is used for improving the ventilation mode caused by shallow breathing, further promoting lung expansion and improving lung capacity. The breathing training device can be used by sports fitness enthusiasts to improve the lung capacity and the effective breathing efficiency; the tubular musical instrument player can utilize the breathing training device to improve the vital capacity and prevent shortness of breath; workers in high altitude areas can utilize the breathing trainer to improve the vital capacity and improve the breathing efficiency. The strengthening respiratory muscle training by using the respiratory trainer is also widely used clinically, and patients with lung diseases can improve lung ventilation by using the respiratory trainer, improve the efficiency of single respiration and increase the activity endurance.

The breathing training device mainly enables a user to overcome the resistance of the training device in the breathing process by setting different resistances, so as to achieve the purpose of training the heart and lung functions. The common resistance adjustment scheme in the present respiratory training device has 3: spring resistance, magnetic attraction resistance and air resistance. The spring resistance exerts force on the spring in the breathing and inhaling processes, and then opens the air passage to breathe and inhale, the scheme has wide resistance adjusting range, can realize stepless resistance adjustment by matching with a sensor, but is limited by the self property of the spring, has influence on the aspects of product appearance and weight, and only can realize single function by a single spring. The resistance is inhaled through adjusting magnetism and inhale size, and control air flue passageway size, and this scheme is low to appearance design requirement, and can breathe the training simultaneously, supports stepless adjustment resistance size, but the technical aspect is still immature. The air resistance is that the size of the area of the ventilation hole is adjusted in the breathing and inhaling process, so that the air resistance is formed.

At present, most of common breathing training devices are manually adjusted in resistance, the breathing training devices are operated by two hands, the resistance is not directly adjustable, and the user is inconvenient to use. Although some electric breathing trainers solve the above problems, the electric breathing apparatus has high cost, large volume and inconvenient carrying.

In summary, how to solve the problems of high cost, large volume and inconvenient carrying of the conventional electric breathing training device is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an impedance adjustable breathes training ware, this impedance adjustable breathes training ware small, with low costs, portable.

In order to achieve the above object, the present invention provides the following technical solutions:

an adjustable impedance breathing trainer, comprising: the breathing device comprises a shell, a breathing/inhaling channel switching device and a ventilation regulating mechanism, wherein a breathing cavity is arranged in the shell, a first air port is arranged at the top of the shell, a second air port is arranged at the bottom of the shell, and the breathing/inhaling channel switching device is arranged in the breathing cavity; breathe/set up the lane of breathing in the lane conversion equipment, breathe/breathe in the lane conversion equipment with set up between the shell and breathe the air flue, breathe in the lane respectively with first gas port with second gas port intercommunication, breathe out the lane respectively with first gas port with second gas port intercommunication, breathe in the lane and set up first check valve, breathe the air flue set up open the direction with the opposite second check valve of first check valve, the air output adjustment mechanism mobilizable set up in breathe/breathe in the lane conversion equipment, in order to adjust the air output of breathing in the lane, the outside protrusion of air output adjustment mechanism in the shell.

Preferably, breathe out/breathe in way conversion equipment includes ring flange and a section of thick bamboo of breathing in, the center of ring flange sets up first inspiration mouth, first check valve set up in first inspiration mouth, the open-top terminal surface of a section of thick bamboo of breathing in with the bottom surface of ring flange is connected, first inspiration mouth with the open-top of a section of thick bamboo of breathing in is just to setting up, the lateral wall of a section of thick bamboo of breathing in sets up the second inspiration mouth, the air volume adjustment mechanism movably set up in the periphery of a section of thick bamboo of breathing in, breathe in the way set up in a section of thick bamboo with between the inner wall of shell, the periphery of ring flange with the inner wall connection of shell.

Preferably, the disk surface of the flange plate on the outer side of the inhalation cylinder is provided with a plurality of exhalation ports, each exhalation port is provided with the second one-way valve, and the exhalation passages are respectively communicated with the exhalation ports and the second air ports.

Preferably, all the exhalation ports are uniformly arranged on the disk surface of the flange plate around the first inhalation port.

Preferably, the opening degree of the second suction port is gradually increased or decreased from bottom to top.

Preferably, the breathing/breathing channel switching device comprises a gear shifting slide button and an adjusting cylinder, a vertical chute is arranged on the side wall of the shell, the gear shifting slide button is movably arranged in the chute, the adjusting cylinder is sleeved on the periphery of the breathing cylinder, the adjusting cylinder and the breathing cylinder can move relatively in the vertical direction, a third air suction port is arranged on the side wall of the adjusting cylinder, and the opening degree of the third air suction port is consistent with the maximum opening degree of the second air suction port.

Preferably, a positioning groove is formed in the inner side of the gear shifting slide button, and a positioning protrusion inserted into the positioning groove is arranged on the periphery of the adjusting cylinder.

Preferably, the inner wall of the shell on the side surface of the sliding groove is provided with a plurality of clamping grooves which are vertically arranged, the side surface of the gear shifting sliding button is provided with a raised head which can be clamped into the clamping grooves and can be separated from the clamping grooves, and an elastic part is arranged between the gear shifting sliding button and the adjusting cylinder.

Preferably, the elastic part is a return spring, a first spring clamping groove is formed in the inner side of the gear shifting slide button, a second spring clamping groove is formed in the outer wall of the adjusting cylinder, and two ends of the return spring are respectively arranged in the first spring clamping groove and the second spring clamping groove.

Preferably, the shell includes first shell and second shell, the bottom of first shell with the top of second shell can be dismantled and be connected, first gas port set up in the top of first shell, the second gas port set up in the bottom of second shell, the spout set up in the lateral wall of first shell.

The breathing trainer with adjustable impedance can adjust the ventilation volume at the position of the breathing/breathing channel switching device by adjusting the ventilation volume adjusting mechanism, meets different training requirements of different users, can complete gear adjustment by single-hand operation, and is more convenient to use; at present most breathing training ware realizes breathing and all needs two solitary gas passage, and this application will breathe the gas passage and inhale the gas passage integrated shell, can avoid addding gas passage, has reduced the appearance volume of breathing training ware, makes it possess better portability, has reduced the cost of production.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an isometric view of an adjustable impedance breathing trainer provided by the present invention;

fig. 2 is an exploded view of the adjustable impedance breathing training device provided by the present invention;

fig. 3 is a cross-sectional view of a first housing provided by the present invention;

FIG. 4 is an isometric view of a flange plate and a suction cylinder provided by the present invention;

fig. 5 is an isometric view of a shift knob provided by the present invention;

fig. 6 is an isometric view of an adjustment barrel provided by the present invention;

fig. 7 is an isometric view of a second housing provided by the present invention;

fig. 8 is a cross-sectional view of the adjustable impedance breathing training device provided by the present invention.

In FIGS. 1-8:

1-a first shell, 2-a first one-way valve, 3-a second one-way valve, 4-an air suction tube, 5-a gear shifting slide button, 6-a reset spring, 7-an adjusting tube and 8-a second shell;

11-a first air port, 12-a second rotary mounting raised head, 13-a clamping groove, 14-a first rotary mounting raised head and 15-a first threaded hole;

41-an exhalation port, 42-a second rotary installation clamping groove, 43-a first inhalation port and 44-a second inhalation port;

51-raised head, 52-first spring clamping groove and 53-positioning groove;

71-a positioning bulge, 72-a second spring clamping groove and 73-a third air suction port;

81-a first rotary mounting clamping groove, 82-a second threaded hole and 83-a second air port;

91-respiratory cavity, 92-inhalation channel, 93-exhalation channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide an impedance adjustable breathing training ware, this impedance adjustable breathing training ware is small, with low costs, portable.

Referring to fig. 1 to 8, an impedance-adjustable breathing training device includes: the breathing device comprises a shell, a breathing/breathing channel switching device and a ventilation regulating mechanism, wherein a breathing cavity 91 is arranged in the shell, a first air port 11 is arranged at the top of the shell, a second air port 83 is arranged at the bottom of the shell, and the breathing/breathing channel switching device is arranged in the breathing cavity 91; an air suction channel 92 is arranged in the air suction/breathing channel switching device, an air suction channel 93 is arranged between the air suction/breathing channel switching device and the shell, the air suction channel 92 is respectively communicated with a first air port 11 and a second air port 83, the air suction channel 93 is respectively communicated with the first air port 11 and the second air port 83, the air suction channel 92 is provided with a first one-way valve 2, the air suction channel 93 is provided with a second one-way valve 3, the opening direction of the second one-way valve 3 is opposite to that of the first one-way valve 2, a ventilation regulating mechanism is movably arranged in the air suction/breathing channel switching device to regulate the ventilation of the air suction channel 92, and the outside of the ventilation regulating mechanism protrudes out of the shell.

It should be noted that the breathing/breathing passage switching device can be ventilated only in one direction, so that the breathing is carried out to one side of the breathing/breathing passage switching device when the user exhales, and the breathing is carried out to the other side of the breathing/breathing passage switching device when the user inhales. The ventilation regulating mechanism can regulate the inspiration amount of the expiration/inspiration channel switching device.

The first air port 11 is a breathing port, and is configured to facilitate breathing of a human mouth, and in use, the first air port 11 is put into the mouth for breathing. The second gas port 83 is a vent port, and the first gas port 11 communicates with the second gas port 83. During inspiration, the first air port 11 generates negative pressure, external air can enter the inspiration channel 92 along the second air port 83, pass through the first one-way valve 2 and enter the human body along the first air port 11, and during expiration, expired air enters the expiration channel 93 along the first air port 11 through the second one-way valve 3 and is discharged along the second air port 83. The breathing/inhaling process is completed by using the same breathing nozzle. Before use, the ventilation of the inhalation duct 92 can be adjusted at the position of the exhalation/inhalation duct switching device by adjusting the ventilation adjusting mechanism to adjust the inhalation resistance, and the exterior of the ventilation adjusting mechanism is protruded from the housing for easy adjustment.

The breathing trainer with adjustable impedance can adjust the ventilation volume at the position of the breathing/breathing channel switching device by adjusting the ventilation volume adjusting mechanism, meets different training requirements of different users, can complete gear adjustment by single-hand operation, and is more convenient to use; most breathing training ware realizes breathing all needs two solitary gas passage at present, and this application will breathe gas passage 93 and inhale the integrated shell of way 92, can avoid addding gas passage, has reduced the appearance volume of breathing training ware, makes it possess better portability, has reduced into manufacturing cost.

On the basis of the above embodiment, as a further preferred, the breathing/inhaling channel switching device includes a flange and an inhaling tube 4, the center of the flange is provided with a first inhaling port 43, the first check valve 2 is arranged on the first inhaling port 43, the top opening end face of the inhaling tube 4 is connected with the bottom surface of the flange, the first inhaling port 43 is arranged opposite to the top opening of the inhaling tube 4, the side wall of the inhaling tube 4 is provided with a second inhaling port 44, the ventilation regulating mechanism is movably arranged on the periphery of the inhaling tube 4, the inhaling channel 92 is arranged in the inhaling tube 4, the breathing channel 93 is arranged between the inhaling tube 4 and the inner wall of the housing, and the periphery of the flange is connected with the inner wall of the housing.

The flange plate is a circular disc, the air suction tube 4 is a cylinder, the flange plate is arranged at the top of the air suction tube 4, the air suction tube 4 and the flange plate are coaxially arranged, the shell is of a cylindrical structure matched with the flange plate, the periphery of the flange plate is connected with the inner wall of the shell, the air suction tube 4 and the first air suction port 43 are arranged right opposite to each other, and the first air suction port 43 is arranged on the inner side of the air suction tube 4. When the first check valve 2 is opened, the air enters the breathing cavity 91 along the second air port 83, enters the inhalation channel 92 in the inhalation tube 4 through the second air inlet 44, then reaches the first air port 11 through the first air inlet 43 to enter the human body, and the ventilation capacity of the second air inlet 44 can be adjusted by adjusting the position of the ventilation capacity adjusting mechanism, so that the inhalation resistance is adjusted.

In order to avoid the inconvenience in processing the holes on the cylindrical surface of the air suction tube 4, the air suction tube 4 can also be designed into a square tube, which is beneficial to optimizing the processing process and reducing the processing cost.

On the basis of the above embodiment, as a further preference, the plate surface of the flange plate on the outer side of the inhalation cylinder 4 is provided with a plurality of exhalation ports 41, each exhalation port 41 is provided with a second one-way valve 3, and the exhalation passages 93 are respectively communicated with the exhalation ports 41 and the second air ports 83. During air suction, the first check valve 2 is opened, the second check valve 3 is closed, and the air suction channel 92 is communicated with the first air port 11 and the second air port 83; during exhalation, the second check valve 3 is opened, the first check valve 2 is closed, and the exhalation tube 93 communicates with the first air port 11 and the second air port 83. The number and shape of the exhalation ports 41 can be set according to the actual application, and all the exhalation ports 41 are arranged on the disk surface of the flange plate around the first inhalation port 43.

In order to fully utilize the exhalation passages 93, on the basis of the above embodiment, as a further preference, all the exhalation ports 41 are uniformly arranged on the disk surface of the flange plate around the first inhalation ports 43, so that during exhalation, the airflow of the exhalation passages 93 is uniform, and smooth exhalation is ensured.

In addition to the above embodiment, it is further preferable that the opening degree of the second air inlet 44 is gradually increased or decreased from bottom to top, and the position of the ventilation amount adjusting means in the air intake tube 4 is adjusted to adjust the position of the ventilation amount adjusting means corresponding to the second air inlet 44, thereby adjusting the position of the second air inlet 44 to perform ventilation, and changing the ventilation amount. Preferably, the second suction port 44 has a triangular shape.

On the basis of the above embodiment, as a further preferable preference, the breathing/breathing channel switching device includes a gear shifting slide button 5 and an adjusting cylinder 7, a vertical chute is arranged on a side wall of the housing, the gear shifting slide button 5 is movably arranged in the chute, the adjusting cylinder 7 is sleeved on the periphery of the breathing cylinder 4, the adjusting cylinder 7 and the breathing cylinder 4 can move relatively in the vertical direction, a third air suction port 73 is arranged on a side wall of the adjusting cylinder 7, and an opening degree of the third air suction port 73 is consistent with a maximum opening degree of the second air suction port 44. Through adjusting the smooth button 5 of shifting to move along the spout, can drive the position of adjusting cylinder 7 on the section of thick bamboo 4 of breathing in to change the position of third induction port 73 for second induction port 44, because the biggest aperture of second induction port 44 and third induction port 73 is unanimous, when making third induction port 73 move to the top along the bottom of second induction port 44 or move to every position of bottom along the top of second induction port 44, the air suction volume all is different, and in above-mentioned accommodation process, the air suction volume is linear control, and application scope is wider.

The air suction cylinder 4 is convenient to replace, and the air resistance of each gear can be adjusted by replacing the air suction cylinders 4 of the second air suction ports 44 with different sizes, so that different resistance requirements of different trainers are met.

In addition to the above embodiments, it is further preferable that the positioning groove 53 is provided inside the shift knob 5, and the positioning protrusion 71 inserted into the positioning groove 53 is provided on the outer periphery of the adjustment cylinder 7. During adjustment, after the positioning protrusion 71 is inserted into the positioning groove 53, the adjusting cylinder 7 can be driven to move vertically by adjusting the position of the gear shifting slide button 5, and the gear shifting slide button 5 can be detached if the gear shifting slide button 5 and/or the adjusting cylinder 7 need to be replaced.

On the basis of the above embodiment, as a further preferred, the inner wall of the housing at the side of the sliding chute is provided with a plurality of vertically arranged slots 13, the side of the shift sliding button 5 is provided with a raised head 51 which can be clamped into the slots 13 and can be separated from the slots 13, and an elastic member is arranged between the shift sliding button 5 and the adjusting cylinder 7. If different gears need to be adjusted, the gear shifting slide button 5 is pressed downwards towards the adjusting cylinder 7, the elastic part can be compressed, the gear shifting slide button is pushed to slide up and down in the sliding groove to complete adjustment of air suction resistance, the raised head 51 is clamped into different clamping grooves 13 to guarantee the pause and frustration of gear adjustment, and the position of the gear shifting slide button 5 can be stabilized under the elastic action of the elastic part.

On the basis of the above embodiment, as a further preferable option, the elastic member is a return spring 6, the first spring slot 52 is disposed inside the shift adjusting slide button 5, the second spring slot 72 is disposed on the outer wall of the adjusting cylinder 7, and two ends of the return spring 6 are disposed in the first spring slot 52 and the second spring slot 72, respectively. The first spring clamping groove 52 and the second spring clamping groove 72 are arranged right opposite to each other, so that the installation stability of the return spring 6 can be ensured, the compression direction of the return spring 6 is axial when the return spring is compressed, and the offset is avoided.

On the basis of the above embodiment, as a further preferred, the housing includes the first housing 1 and the second housing 8, the bottom of the first housing 1 is detachably connected with the top of the second housing 8, the first air port 11 is disposed at the top of the first housing 1, the second air port 83 is disposed at the bottom of the second housing 8, and the sliding groove is disposed on the side wall of the first housing 1. The inner wall of the lower part of the first shell 1 is provided with a first rotary mounting raised head 14 and a first threaded hole 15, the outer wall of the top part of the second shell 8 is provided with a first rotary mounting clamping groove 81 and a second threaded hole 82, the first rotary mounting clamping groove 81 is matched with the first rotary mounting raised head 14, and the first rotary mounting clamping groove and the first threaded hole 15 are penetrated by screws after being matched with each other, so that the mounting is completed.

In order to facilitate the disassembly and assembly of the flange plate, a second mounting raised head 51 is arranged on the inner wall of the first shell 1, a second rotary mounting clamping groove 42 is arranged on the periphery of the flange plate, and the second rotary mounting clamping groove 42 is matched with the second rotary mounting raised head 12 to complete the mounting.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The above is to the respiratory training device with adjustable impedance provided by the present invention. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. An adjustable impedance breathing trainer, comprising: the breathing device comprises a shell, a breathing/inhaling channel switching device and a ventilation regulating mechanism, wherein a breathing cavity (91) is arranged in the shell, a first air port (11) is arranged at the top of the shell, a second air port (83) is arranged at the bottom of the shell, and the breathing/inhaling channel switching device is arranged in the breathing cavity (91); breathe in/set up in the gas channel conversion equipment and breathe in way (92), breathe in/breathe in the gas channel conversion equipment with set up between the shell and breathe in way (93), breathe in way (92) respectively with first gas port (11) with second gas port (83) intercommunication, breathe in way (93) respectively with first gas port (11) with second gas port (83) intercommunication, breathe in way (92) and set up first check valve (2), breathe in way (93) set up open direction with second check valve (3) that first check valve (2) are opposite, the air flow adjustment mechanism mobilizable set up in breathe in way conversion equipment, in order to adjust the air flow of gas channel (92), the outside protrusion of air flow adjustment mechanism in the shell.

2. The impedance-adjustable respiration training device according to claim 1, wherein the exhalation/inhalation channel switching device comprises a flange plate and an inhalation cylinder (4), a first inhalation port (43) is arranged in the center of the flange plate, the first check valve (2) is arranged on the first inhalation port (43), the open top end surface of the inhalation cylinder (4) is connected with the bottom surface of the flange plate, the first inhalation port (43) is arranged opposite to the open top of the inhalation cylinder (4), a second inhalation port (44) is arranged on the side wall of the inhalation cylinder (4), the ventilation regulating mechanism is movably arranged on the periphery of the inhalation cylinder (4), the inhalation channel (92) is arranged in the inhalation cylinder (4), the exhalation channel (93) is arranged between the inhalation cylinder (4) and the inner wall of the housing, and the periphery of the flange plate is connected with the inner wall of the housing.

3. The adjustable impedance breathing training device according to claim 2, wherein a plurality of exhalation ports (41) are arranged on the disc surface of the flange plate on the outer side of the inhalation cylinder (4), each exhalation port (41) is provided with the second one-way valve (3), and the exhalation passages (93) are respectively communicated with the exhalation ports (41) and the second air ports (83).

4. The adjustable impedance breathing trainer as claimed in claim 3, wherein all of the exhalation ports (41) are evenly arranged on the disc surface of the flange plate around the first inhalation port (43).

5. The adjustable impedance breathing training device according to any one of claims 2-4, wherein the opening degree of the second inhalation port (44) is gradually increased or decreased from bottom to top.

6. The adjustable impedance breathing training device according to claim 5, wherein the ventilation regulating mechanism comprises a shift sliding button (5) and a regulating cylinder (7), a vertical sliding groove is formed in the side wall of the housing, the shift sliding button (5) is movably arranged in the sliding groove, the regulating cylinder (7) is sleeved on the periphery of the inhalation cylinder (4), the regulating cylinder (7) and the inhalation cylinder (4) can move relatively in the vertical direction, a third air suction port (73) is formed in the side wall of the regulating cylinder (7), and the opening degree of the third air suction port (73) is consistent with the maximum opening degree of the second air suction port (44).

7. The adjustable impedance breathing training device as claimed in claim 6, wherein the shift slider (5) is provided with a positioning groove (53) on the inner side, and the adjusting cylinder (7) is provided with a positioning protrusion (71) on the outer periphery for inserting into the positioning groove (53).

8. The adjustable impedance breathing training device according to claim 6, wherein the inner wall of the housing at the side of the sliding chute is provided with a plurality of vertically arranged clamping grooves (13), the side of the gear shifting slide button (5) is provided with a raised head (51) which can be clamped into the clamping grooves (13) and separated from the clamping grooves (13), and an elastic member is arranged between the gear shifting slide button (5) and the adjusting cylinder (7).

9. The adjustable-impedance breathing training device according to claim 8, wherein the elastic member is a return spring (6), a first spring slot (52) is disposed on the inner side of the shift slider (5), a second spring slot (72) is disposed on the outer wall of the adjusting cylinder (7), and two ends of the return spring (6) are disposed in the first spring slot (52) and the second spring slot (72), respectively.

10. The adjustable impedance breathing training device of claim 6, wherein the housing comprises a first housing (1) and a second housing (8), the bottom of the first housing (1) is detachably connected with the top of the second housing (8), the first air port (11) is arranged at the top of the first housing (1), the second air port (83) is arranged at the bottom of the second housing (8), and the sliding groove is arranged on the side wall of the first housing (1).