Lung function training device

Abstract

The invention relates to the technical field of lung function training, and particularly discloses a lung function training device which comprises a working box, an air inlet is formed in the working box, the top end of the air inlet is fixedly connected with an air inlet pipeline, an adjusting pipeline is arranged in the working box, the bottom of the air inlet is communicated with the adjusting pipeline, and the air inlet is communicated with the adjusting pipeline. By arranging the air pressure adjusting device, air entering the air inlet can reach the position of the sealing piston firstly and then drive the sealing piston and the connecting rod to move towards the position of the micro motor, and in the process, the sealing piston and the connecting rod are driven to move towards the micro motor. Gas enters the first pipe body, the second pipe body and the third pipe body through third gas outlet through holes in the bottoms of the first pipe body, the second pipe body and the third pipe body in sequence, an accurate training result is obtained, meanwhile, a micro motor can be started to drive a threaded pipe to rotate in a threaded mode, and therefore the initial position of a sealing piston is changed, and the training intensity is adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of pulmonary function training, and more particularly to a pulmonary function training device. Background Art

[0002] The lungs are the respiratory organs of the human body, located in the chest cavity, one on each side, covering the heart. The main function of the lungs is to perform gas exchange. By breathing in oxygen in the air and then through gas-blood exchange into venous blood, carbon dioxide in the venous blood is excreted. In addition to gas exchange, the lungs also have other functions, such as participating in metabolism and filtering harmful substances in the circulation. The lungs are also relatively large blood storage organs in the human body. When the respiratory mucosa of the human body is stimulated, it will stimulate the cough reflexors located in the mucosa of the pharynx, trachea and bronchi, thus triggering a cough, which can expel foreign bodies, sputum and other secretions in the respiratory tract out of the body, thus playing a protective role.

[0003] In a Chinese patent with the patent publication number CN110624218B, it discloses a pulmonary function training device for respiratory medicine. Its structure includes a telescopic breathing tube, a connecting small tube, an intake tube, a connecting tube, a control valve, a chassis, and a step display system. The step display system is provided on the top surface of the chassis. The intake tube is installed on the chassis on one side of the step display system. A control valve is provided between the intake tube and the step display system. The top of the intake tube is provided with a connecting tube, and the connecting tube is connected to the trachea. A connecting small tube is horizontally installed on the side of the connecting tube, and the end of the connecting small tube is nested with a telescopic breathing tube, and the telescopic breathing tube is movably connected to the patient's oral cavity. The present invention adopts the mutual design of a balloon and a third transparent tube, a second transparent tube, and a first transparent tube, and uses the height of the balloon floating up and down to directly and objectively observe its strength. It is intuitive for patients and easy to control the rhythm of one inhalation and one exhalation, achieving the purpose of an efficient training effect.

[0004] The following defects exist in the above technical solution: Since the balloon is light in weight, and the fluidity of the gas exhaled by the patient during pulmonary function training is unstable over time, it is easy to cause the balloon to fail to stably lift the floating plug, allowing the gas to enter other transparent tubes, and it is impossible to accurately judge the effect of the patient's pulmonary function training. In addition, the size of its top tube is fixed and cannot be changed according to the patient's exhalation intensity, which also affects the accurate judgment of the effect of the patient's pulmonary function training. Summary of the Invention

[0005] In order to overcome the above defects of the prior art, the present invention provides a pulmonary function training device to solve the problems existing in the above background art.

[0006] The present invention provides the following technical solution: a pulmonary function training device, including a working box, an air inlet is provided on the working box, the top end of the air inlet is fixedly connected with an air inlet pipe, an adjusting pipe is arranged inside the working box, the bottom of the air inlet is communicated with the adjusting pipe, a pneumatic adjusting device is arranged in the adjusting pipe, a plurality of air outlet pipes are arranged on the working box, a pipe orifice adjusting device is arranged at the bottom of the air outlet pipe, the bottom of the pipe orifice adjusting device is communicated with the adjusting pipe, and a balloon is arranged in the air outlet pipe.

[0007] Further, a plurality of first air outlet through holes are opened at the top of the working box, a third air outlet through hole is opened at the bottom of the air outlet pipe, the first air outlet through hole and the third air outlet through hole are of the same size and are vertically corresponding, and the pipe orifice adjusting device is arranged inside the first air outlet through hole and the third air outlet through hole.

[0008] Further, the pipe of the air inlet pipe is telescopic, and the other end of the air inlet pipe away from the air inlet is detachably connected with a breathing nozzle.

[0009] Further, a plurality of second air outlet through holes are opened at the top of the adjusting pipe, and the second air outlet through holes are communicated with the bottom of the pipe orifice adjusting device.

[0010] Further, the pneumatic adjusting device includes a micro motor, the driving end of the micro motor is drivingly connected with a threaded shaft, the threaded shaft is in threaded connection with a threaded pipe, the other end of the threaded pipe is fixedly connected with a telescopic pipe, a first mounting base is fixedly connected to one end of the telescopic pipe close to the threaded pipe, a telescopic spring is mounted on the first mounting base, the other end of the telescopic spring is mounted on a second mounting base, a connecting rod is fixedly connected to the end of the second mounting base away from the threaded pipe, and a sealing piston is fixedly connected to the other end of the connecting rod.

[0011] Further, the sealing piston is located outside the telescopic pipe, the diameter of the sealing piston is larger than that of the telescopic pipe, and the sealing piston is slidably connected with the adjusting pipe.

[0012] Further, the pipe orifice adjusting device includes a connecting block, the connecting block is located inside the first air outlet through hole and the third air outlet through hole, an adjusting chamber is arranged inside the connecting block, a floating body is slidably connected inside the adjusting chamber, a plurality of exhaust holes are opened on the side surface of the adjusting chamber, and a limiting ring is fixedly connected to the bottom of the adjusting chamber.

[0013] Further, the exhaust holes are arranged in several layers, the height of each layer is different, the number of the exhaust holes in each layer is the same, and an exhaust area is formed between the adjusting chamber and the exhaust holes.

[0014] Furthermore, a connection chamber is provided at the bottom of the connection block, and the connection chamber communicates with the second air outlet through hole.

[0015] Furthermore, the air outlet pipe body includes a first pipe body, a second pipe body and a third pipe body. The sides of the first pipe body, the second pipe body and the third pipe body are all designed with transparent materials, and scale lines are provided on the sides of the first pipe body, the second pipe body and the third pipe body.

[0016] The technical effects and advantages of the present invention:

[0017] 1. By providing a pneumatic adjustment device, the present invention facilitates the gas entering the air inlet to first reach the sealing piston, and then drives the sealing piston and the connecting rod to move towards the micro motor. In this process, the gas sequentially enters the first pipe body, the second pipe body and the third pipe body through the third air outlet through holes at the bottoms of the first pipe body, the second pipe body and the third pipe body. While obtaining accurate training results, the initial position of the sealing piston can also be changed by starting the micro motor to drive the threaded pipe to rotate threadedly, so as to adjust the training intensity.

[0018] 2. By providing a pipe orifice adjustment device, the present invention facilitates the pipe orifice adjustment device to automatically adjust the upward movement distance of the floating body in the adjustment chamber according to the exhalation intensity when the gas enters the first pipe body, the second pipe body and the third pipe body through the third air outlet through hole. The farther the distance, the more the number of exhaust holes, and the exhaled gas can blow up the balloon in the first time without affecting the accuracy of the training results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a sectional view of the overall structure of the present invention;

[0021] Figure 3 is a schematic diagram of the structure of the pneumatic adjustment device of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of the sealing piston of the present invention;

[0023] Figure 5 is a schematic diagram of the structure of the air outlet pipe body of the present invention;

[0024] Figure 6 is a schematic diagram of the structure of the pipe orifice adjustment device of the present invention.

[0025] The reference numerals are: 1, working box; 101, air inlet; 102, first air outlet through hole; 2, air inlet pipe; 3, adjusting pipe; 301, second air outlet through hole; 4, air pressure adjusting device; 401, micro motor; 402, threaded shaft; 403, threaded pipe; 404, telescopic pipe; 405, first mounting base; 406, telescopic spring; 407, second mounting base; 408, connecting rod; 409, sealing piston; 5, air outlet pipe body; 501, first pipe body; 502, second pipe body; 503, third pipe body; 504, third air outlet through hole; 6, pipe orifice adjusting device; 601, connecting block; 602, adjusting chamber; 603, floating body; 604, exhaust hole; 605, limiting ring; 606, connecting chamber; 7, balloon. Detailed implementation mode

[0026] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. In addition, the forms of each structure described in the following implementation modes are merely examples, and a pulmonary function training device related to the present invention is not limited to the structures described in the following implementation modes. All other implementation modes obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] Referring to Figure 1 and Figure 2 The present invention provides a pulmonary function training device, including a working box 1, an air inlet 101 is arranged on the working box 1, the top of the air inlet 101 is fixedly connected with an air inlet pipe 2, an adjusting pipe 3 is arranged inside the working box 1, the bottom of the air inlet 101 is communicated with the adjusting pipe 3, an air pressure adjusting device 4 is arranged inside the adjusting pipe 3, a plurality of air outlet pipe bodies 5 are arranged on the working box 1, a pipe orifice adjusting device 6 is arranged at the bottom of the air outlet pipe body 5, the bottom of the pipe orifice adjusting device 6 is communicated with the adjusting pipe 3, and a balloon 7 is arranged inside the air outlet pipe body 5;

[0028] In this embodiment, it should be specifically noted that: the patient exhales into the air inlet pipe 2, the exhaled gas first enters the air inlet 101, and then sequentially enters the first pipe body 501, the second pipe body 502 and the third pipe body 503. The gas entering the first pipe body 501, the second pipe body 502 and the third pipe body 503 blows up the balloon 7, and by measuring the height of the balloon 7, an accurate training effect judgment can be obtained.

[0029] The main difference between this embodiment and the prior art is that in this embodiment, a pneumatic regulating device 4 and a nozzle regulating device 6 are adopted. The gas entering the air inlet 101 first reaches the sealing piston 409, and then drives the sealing piston 409 and the connecting rod 408 to move towards the micro motor 401. During this process, the gas sequentially enters the first pipe body 501, the second pipe body 502, and the third pipe body 503 through the third air outlet through hole 504 at the bottom of the third pipe body 503. While obtaining an accurate training result, the micro motor 401 can be started to drive the threaded pipe 403 to rotate threadedly, thereby changing the initial position of the sealing piston 409 and adjusting the training intensity. When the gas enters the first pipe body 501, the second pipe body 502, and the third pipe body 503 through the third air outlet through hole 504, the nozzle regulating device 6 automatically adjusts the distance that the floating body 603 moves upward in the regulating chamber 602 according to the intensity of exhalation. The farther the distance, the more the number of exhaust holes 604, and the exhaled gas can blow up the balloon 7 in the first time without affecting the accuracy of the training result. Specifically, it lies in the micro motor 401, the sealing piston 409, the floating body 603, and the exhaust holes 604;

[0030] The above structure is the main structure of this embodiment, which solves the problems that due to the light weight of the balloon 7 and the unstable fluidity of the exhaled gas of the patient during pulmonary function training over time, it is easy to cause the balloon 7 to fail to stably lift the floating plug, resulting in the gas entering other transparent pipes and unable to accurately judge the effect of the patient's pulmonary function training. In addition, the size of its top pipe is fixed and cannot be changed according to the exhalation intensity of the patient, which also affects the accurate judgment of the effect of the patient's pulmonary function training. The sealing piston 409 is a prior art structure, and the specific structure and connection method of the sealing piston 409 are not specifically described in this embodiment.

[0031] Refer to Figure 2 As shown in the figure, a plurality of first air outlet through holes 102 are opened at the top of the working box 1, and a third air outlet through hole 504 is opened at the bottom of the air outlet pipe body 5. The first air outlet through hole 102 and the third air outlet through hole 504 are the same in size and vertically corresponding, and the nozzle regulating device 6 is arranged inside the first air outlet through hole 102 and the third air outlet through hole 504.

[0032] In this embodiment, it should be specifically noted that when the gas enters the first pipe body 501, the second pipe body 502, and the third pipe body 503 through the third air outlet through hole 504, the nozzle regulating device 6 automatically adjusts the distance that the floating body 603 moves upward in the regulating chamber 602 according to the intensity of exhalation. The farther the distance, the more the number of exhaust holes 604, and the exhaled gas can blow up the balloon 7 in the first time without affecting the accuracy of the training result.

[0033] Refer to Figure 2, the pipe of the intake pipe 2 is telescopic, and the other end of the intake pipe 2 far from the air inlet 101 is detachably connected with a breathing nozzle.

[0034] In this embodiment, it should be specifically explained that: when the patient is performing pulmonary function training, the doctor first installs a new breathing nozzle at the end of the intake pipe 2 far from the air inlet 101, and then the patient exhales into the breathing nozzle, and the exhaled gas can enter the air inlet 101 through the intake pipe 2.

[0035] Refer to Figure 3 , a plurality of second air outlet through holes 301 are formed in the top of the adjusting pipe 3, and the second air outlet through holes 301 are communicated with the bottom of the pipe orifice adjusting device 6.

[0036] In this embodiment, it should be specifically explained that: it is convenient for gas to enter the pipe orifice adjusting device 6 through the second air outlet through holes 301, and to avoid leakage of the patient's exhaled gas, which affects the accurate judgment of the patient's pulmonary function training effect.

[0037] Refer to Figure 3 and Figure 4 , the air pressure adjusting device 4 includes a micro motor 401, the driving end of the micro motor 401 is drivingly connected with a threaded shaft 402, the threaded shaft 402 is in threaded connection with a threaded pipe 403, the other end of the threaded pipe 403 is fixedly connected with a telescopic pipe 404, and one end of the telescopic pipe 404 close to the threaded pipe 403 is fixedly connected with a first mounting base 405. A telescopic spring 406 is installed on the first mounting base 405, the other end of the telescopic spring 406 is installed on a second mounting base 407, the other end of the second mounting base 407 far from the threaded pipe 403 is fixedly connected with a connecting rod 408, and the other end of the connecting rod 408 is fixedly connected with a sealing piston 409. The sealing piston 409 is located outside the telescopic pipe 404, the diameter of the sealing piston 409 is larger than that of the telescopic pipe 404, and the sealing piston 409 is slidably connected with the adjusting pipe 3.

[0038] In this embodiment, it should be specifically noted that: The gas entering the air inlet 101 first contacts the sealing piston 409. Under the action of air pressure, the sealing piston 409 drives the connecting rod 408 to move towards the direction of the micro motor 401, compressing the telescopic tube 404 and the telescopic spring 406. During this process, the sealing piston 409 first passes through the second air outlet through hole 301 at the bottom of the first tube body 501, and then part of the gas enters the first tube body 501 to inflate the balloon 7 in the first tube body 501. The other part continues to force the telescopic tube 404 and the telescopic spring 406 to be compressed, and then passes through the second air outlet through holes 301 at the bottoms of the second tube body 502 and the third tube body 503 respectively to inflate the balloons 7 in the second tube body 502 and the third tube body 503. The training effect is accurately judged through the scale lines provided on the side walls of the first tube body 501, the second tube body 502, and the third tube body 503. In addition, when it is necessary to adjust the training degree, the micro motor 401 is started. The micro motor 401 drives the threaded shaft 402 to rotate. The threaded shaft 402 rotates threadedly with the threaded tube 403 to move the overall position of the threaded tube 403 and the telescopic tube 404. When strengthening the training, it drives the sealing piston 409 to move towards the air inlet 101, increasing the distance between the sealing piston 409 and the second air outlet through hole 301 at the bottom of the first tube body 501. Conversely, it drives the sealing piston 409 to move towards the direction of the micro motor 401, reducing the distance between the sealing piston 409 and the second air outlet through hole 301 at the bottom of the first tube body 501.

[0039] Referring to Figure 5 and Figure 6 , the nozzle adjusting device 6 includes a connecting block 601. The connecting block 601 is located inside the first air outlet through hole 102 and the third air outlet through hole 504. An adjusting chamber 602 is provided inside the connecting block 601. A floating body 603 is slidably connected inside the adjusting chamber 602. A plurality of exhaust holes 604 are provided on the side of the adjusting chamber 602. A limiting ring 605 is fixedly connected to the bottom of the adjusting chamber 602. The exhaust holes 604 are arranged in several layers, with different heights for each layer and the same number of exhaust holes 604 for each layer. An exhaust area is formed between the adjusting chamber 602 and the exhaust holes 604. A connecting chamber 606 is provided at the bottom of the connecting block 601, and the connecting chamber 606 communicates with the second air outlet through hole 301.

[0040] In this embodiment, it should be specifically noted that: when the exhaled gas enters the first tube body 501, the second tube body 502, and the third tube body 503 through the pipe orifice adjusting device 6 between the first air outlet through hole 102 and the third air outlet through hole 504, the gas first enters the connection chamber 606 at the bottom of the floating body 603. Under the action of air pressure, the floating body 603 moves upward in the adjusting chamber 602, and the exhaust hole 604 on the side of the adjusting chamber 602 is exposed. The gas enters the first tube body 501, the second tube body 502, and the third tube body 503 through the exhaust hole 604, blowing up the balloon 7. The distance that the floating body 603 moves upward in the adjusting chamber 602 is automatically adjusted according to the intensity of the exhaled gas. The more exhaled gas, the longer the distance that the floating body 603 moves, and the more the exposed exhaust holes 604. The gas enters the first tube body 501, the second tube body 502, and the third tube body 503 in the first time, without affecting the accuracy of the judgment of the patient's lung function training result.

[0041] Referring to Figure 2 , the air outlet pipe body 5 includes a first tube body 501, a second tube body 502, and a third tube body 503. The sides of the first tube body 501, the second tube body 502, and the third tube body 503 are all designed with transparent materials, and scale lines are provided on the sides of the first tube body 501, the second tube body 502, and the third tube body 503.

[0042] In this embodiment, it should be specifically noted that: the transparent material facilitates the patient and the doctor to observe the rising condition of the internal balloon 7, and the scale lines facilitate the doctor to accurately judge the result of the patient's lung function training.

[0043] The working principle of the present invention:

[0044] The main problem solved by this embodiment is that: since the balloon 7 is light in weight, and the fluidity of the exhaled gas during the patient's lung function training changes unstably over time, it is easy to cause the balloon 7 to fail to stably lift the floating plug, resulting in the gas entering other transparent tubes, and the effect of the patient's lung function training cannot be accurately judged. In addition, the size of its top tube is fixed and cannot be changed according to the patient's exhalation intensity, which also affects the accurate judgment of the effect of the patient's lung function training.

[0045] The specific steps are as follows:

[0046] When the patient is performing pulmonary function training, the doctor first installs a new breathing nozzle at one end of the air inlet pipe 2 away from the air inlet 101. Then the patient exhales into the breathing nozzle, and the exhaled gas can enter the air inlet 101 through the air inlet pipe 2. The gas entering the air inlet 101 first contacts the sealing piston 409. Under the action of air pressure, the sealing piston 409 drives the connecting rod 408 to move towards the direction of the micro motor 401, and the telescopic tube 404 and the telescopic spring 406 are compressed. During this process, the sealing piston 409 first passes through the second air outlet through hole 301 at the bottom of the first tube body 501, and then a part of the gas enters the first tube body 501 to inflate the balloon 7 in the first tube body 501. Another part of the gas continues to force the telescopic tube 404 and the telescopic spring 406 to be compressed, and then passes through the second air outlet through holes 301 at the bottoms of the second tube body 502 and the third tube body 503 respectively to inflate the balloons 7 in the second tube body 502 and the third tube body 503. The training effect is accurately judged through the scale lines provided on the side walls of the first tube body 501, the second tube body 502 and the third tube body 503. In addition, when it is necessary to adjust the training degree, the micro motor 401 is started. The micro motor 401 drives the threaded shaft 402 to rotate. The threaded shaft 402 rotates threadedly with the threaded tube 403 to move the overall position of the threaded tube 403 and the telescopic tube 404. When strengthening the training, it drives the sealing piston 409 to move towards the air inlet 101 direction, increasing the distance between the sealing piston 409 and the second air outlet through hole 301 at the bottom of the first tube body 501. On the contrary, it drives the sealing piston 409 to move towards the direction of the micro motor 401, reducing the distance between the sealing piston 409 and the second air outlet through hole 301 at the bottom of the first tube body 501. When the exhaled gas enters the first tube body 501, the second tube body 502 and the third tube body 503 through the pipe orifice adjusting device 6 between the first air outlet through hole 102 and the third air outlet through hole 504, the gas first enters the connecting chamber 606 at the bottom of the floating body 603. The floating body 603 moves upward in the adjusting chamber 602 under the action of air pressure, and the exhaust hole 604 on the side of the adjusting chamber 602 is exposed. The gas enters the first tube body 501, the second tube body 502 and the third tube body 503 through the exhaust hole 604 to inflate the balloon 7. The distance that the floating body 603 moves upward in the adjusting chamber 602 is automatically adjusted according to the intensity of the exhaled gas. The more exhaled gas, the longer the distance that the floating body 603 moves, and the more the exposed exhaust holes 604 are. The gas enters the first tube body 501, the second tube body 502 and the third tube body 503 immediately, and will not affect the accuracy of judging the patient's pulmonary function training result.

[0047] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pulmonary function training device, comprising a working box (1), characterized in that: An air inlet (101) is provided on the working box (1). The top end of the air inlet (101) is fixedly connected to an air inlet pipe (2). An adjusting pipe (3) is arranged inside the working box (1). The bottom of the air inlet (101) is communicated with the adjusting pipe (3). A pneumatic adjusting device (4) is arranged inside the adjusting pipe (3). A plurality of air outlet pipes (5) are provided on the working box (1). A pipe orifice adjusting device (6) is arranged at the bottom of the air outlet pipe (5). The bottom of the pipe orifice adjusting device (6) is communicated with the adjusting pipe (3). A balloon (7) is arranged inside the air outlet pipe (5).

2. The pulmonary function training device according to claim 1, wherein: A plurality of first air outlet through holes (102) are formed in the top of the working box (1). A third air outlet through hole (504) is formed in the bottom of the air outlet pipe (5). The first air outlet through hole (102) and the third air outlet through hole (504) are of the same size and are vertically corresponding. The pipe orifice adjusting device (6) is arranged inside the first air outlet through hole (102) and the third air outlet through hole (504).

3. A pulmonary function training device according to claim 1, characterized in that: The pipe of the air inlet pipe (2) is telescopic. The other end of the air inlet pipe (2) far from the air inlet (101) is detachably connected with a breathing mouthpiece.

4. A pulmonary function training device according to claim 1, characterized in that: A plurality of second air outlet through holes (301) are formed in the top of the adjusting pipe (3). The second air outlet through holes (301) are communicated with the bottom of the pipe orifice adjusting device (6).

5. A pulmonary function training device according to claim 1, characterized in that: The pneumatic adjusting device (4) includes a micro motor (401). The driving end of the micro motor (401) is drivingly connected with a threaded shaft (402). The threaded shaft (402) is in threaded connection with a threaded pipe (403). The other end of the threaded pipe (403) is fixedly connected with a telescopic pipe (404). A first mounting base (405) is fixedly connected to one end of the telescopic pipe (404) close to the threaded pipe (403). A telescopic spring (406) is mounted on the first mounting base (405). The other end of the telescopic spring (406) is mounted on a second mounting base (407). A connecting rod (408) is fixedly connected to one end of the second mounting base (407) far from the threaded pipe (403). The other end of the connecting rod (408) is fixedly connected with a sealing piston (409).

6. The pulmonary function training device according to claim 5, characterized in that: The sealing piston (409) is located outside the telescopic pipe (404). The diameter of the sealing piston (409) is larger than that of the telescopic pipe (404). The sealing piston (409) is slidably connected with the adjusting pipe (3).

7. A pulmonary function training device according to claim 1, characterized in that: The pipe orifice adjusting device (6) includes a connecting block (601). The connecting block (601) is located inside the first air outlet through hole (102) and the third air outlet through hole (504). An adjusting chamber (602) is arranged inside the connecting block (601). A floating body (603) is slidably connected inside the adjusting chamber (602). A plurality of exhaust holes (604) are formed in the side surface of the adjusting chamber (602). A limiting ring (605) is fixedly connected to the bottom of the adjusting chamber (602).

8. A pulmonary function training device according to claim 7, wherein: The exhaust holes (604) are arranged in several layers with different heights for each layer, and the number of the exhaust holes (604) in each layer is the same. An exhaust area is formed between the adjustment chamber (602) and the exhaust holes (604).

9. The pulmonary function training device according to claim 7, wherein: A connection chamber (606) is provided at the bottom of the connection block (601), and the connection chamber (606) communicates with the second air outlet through hole (301).

10. The lung function training device according to claim 1, characterized in that: The air outlet pipe body (5) includes a first pipe body (501), a second pipe body (502) and a third pipe body (503). The sides of the first pipe body (501), the second pipe body (502) and the third pipe body (503) are all designed with transparent materials, and scale lines are provided on the sides of the first pipe body (501), the second pipe body (502) and the third pipe body (503).

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