A patient lung function rehabilitation training device

Abstract

This invention belongs to the field of rehabilitation equipment technology, specifically a patient pulmonary function rehabilitation training device, including a blower duct. A supporting shaft is coaxially and rotatably mounted within the blower duct's inner cavity. A first baffle and a second baffle are integrally formed on the supporting shaft. The blower duct has an air inlet and an air outlet. An impedance mechanism is also fixedly mounted on the housing to limit the rotational tendency of the supporting shaft. The air inlet is connected to an air nozzle via a flexible air hose, allowing the patient to blow air through the nozzle into the blower duct. This rehabilitation training device allows for adjustment of training intensity and provides a convenient way to visually determine the amount of rehabilitation training the patient is undergoing by observing the volume of solution in the measuring cylinder.

Description

Technical Field

[0001] This invention relates to a rehabilitation training device, and more particularly to a patient lung function rehabilitation training device. Background Technology

[0002] Because respiratory patients are prone to decreased lung function, rehabilitation training equipment is needed to train their lung function and accelerate their recovery.

[0003] Currently, breathing trainers use the basic principle of resistance training. When users inhale through the breathing trainer, they need to exert effort to resist the resistance set by the trainer in order to increase the strength of the inspiratory muscles, thereby increasing the strength and endurance of the respiratory muscles. During training, breathing training is performed by inhaling through a tube inserted into the mouth.

[0004] Existing breathing trainers generally include a trainer body with an internal ventilation channel and a flexible tube installed at one end. A plastic ball mounting slot is located near the lower part of the ventilation channel inside the trainer body. When this trainer exercises lung function, the intensity of the training varies depending on the patient's condition. Furthermore, since patients often train independently and cannot control the intensity, excessive force may cause further lung injury and worsen the condition. Summary of the Invention

[0005] The purpose of this invention is to provide a lung function rehabilitation training device for patients, which aims to solve the problem that existing training devices cannot control the intensity of training when exercising lung function, and excessive force may cause the patient's lungs to be injured again and aggravate the injury.

[0006] To achieve the above objectives, the present invention provides the following technical solution.

[0007] A patient lung function rehabilitation training device includes a wind duct, wherein a support shaft is coaxially and rotatably mounted on the inner cavity of the wind duct, and a first wind baffle and a second wind baffle are integrally formed on the support shaft, and an air blowing port and an air outlet are respectively provided on the wind duct.

[0008] An impedance mechanism is also fixedly installed on the housing. The impedance mechanism is linked with the support shaft. The impedance mechanism is used to limit the rotation tendency of the support shaft. The impedance mechanism includes a guide frame. A moving block and a positioning block are slidably supported in the guide frame. The moving block and the positioning block are connected by a support spring. The position of the positioning block in the guide frame is adjusted by a displacement component.

[0009] The air outlet is connected to the air nozzle via an air hose. The patient blows air through the air nozzle, allowing air to enter the air duct through the air outlet.

[0010] Furthermore, the included angle between the air blower, the supporting shaft, and the air outlet is a first angle; the included angle between the first baffle plate, the supporting shaft, and the second baffle plate is a second angle; the first angle is greater than the second angle, and the first angle is less than 180 degrees; when air enters through the air blower, as the air pressure inside the air duct increases continuously, the supporting shaft rotates counterclockwise. As the supporting shaft continues to rotate counterclockwise, until the first baffle plate passes the air outlet, the second baffle plate has not yet moved to the position of the air blower. At this time, the airflow enters from the air blower and exits through the air outlet.

[0011] Both the first and second wind deflectors are provided with arc-shaped wind deflector blocks at their ends to improve the dynamic sealing effect at the connection between the ends of the first and second wind deflectors and the inner wall of the air duct.

[0012] Furthermore, the displacement assembly includes an internal threaded adjusting cylinder, which is fixedly mounted on the positioning block. An adjusting screw is rotatably provided through the top plate of the guide frame. One end of the adjusting screw is screwed into the internal threaded adjusting cylinder via a threaded connection, and the other end of the adjusting screw is provided with an adjusting handle. The adjusting handle drives the adjusting screw to rotate, thereby pushing the internal threaded adjusting cylinder to move, which in turn drives the positioning block to move, thereby adjusting the position of the positioning block on the guide frame.

[0013] Furthermore, a first guide post is fixedly installed on the movable block, and a lifting post is also fixedly installed on the movable block, with teeth on one side of the lifting post;

[0014] The end of the supporting shaft is fixedly connected to one end of the supporting rod. The supporting rod has a strip-shaped through hole. The first guide post slides against the strip-shaped through hole so that when the supporting shaft rotates, it drives the supporting rod to rotate. Under the pushing action of the first guide post, the rotating supporting rod causes the moving block to be displaced in the guide frame. The supporting spring is provided to limit the rotation tendency of the supporting shaft. The impedance mechanism provided by the present invention can also use the displacement component to adjust the position of the positioning block in the guide frame to adjust the elastic deformation stroke range of the supporting spring.

[0015] Furthermore, the housing is also fixedly equipped with a liquid tank, a metering cylinder, and a liquid cylinder. A piston is installed inside the liquid cylinder. The piston is fixedly connected to the bottom end of the connecting rod. A lifting frame is fixedly connected to the top end of the connecting rod. The lifting frame is slidably sleeved on the second guide post. The second guide post is eccentrically fixed on one side of the gear plate. The gear plate is rotatably supported at the top opening of the liquid cylinder. The gear plate can mesh with the teeth. When the teeth mesh with the gear plate, the displacement of the lifting post drives the gear plate to rotate. The rotating gear plate causes the second guide post to make a circular motion, thereby pushing the piston to move back and forth in the vertical direction inside the liquid cylinder.

[0016] Furthermore, a liquid extraction pipe is connected to the bottom end of the liquid cylinder, and the other end of the liquid extraction pipe extends into the liquid tank. A one-way valve is installed on the liquid extraction pipe, which allows the solution in the liquid tank to flow unidirectionally into the liquid cylinder through the liquid extraction pipe. A drain pipe is also connected to the bottom end of the liquid cylinder, and the other end of the drain pipe extends into the measuring cylinder. A one-way valve is installed on the drain pipe, which allows the solution in the liquid cylinder to flow unidirectionally into the measuring cylinder through the drain pipe.

[0017] Furthermore, one side of the measuring cylinder is a side plate, and the side plate is provided with scale lines corresponding to the measuring cylinder. The scale lines are used to read the liquid level height inside the measuring cylinder.

[0018] Furthermore, the bottom of the measuring cylinder is connected to the liquid tank, and a sealing component is provided at the bottom of the measuring cylinder to seal the connection between the bottom of the measuring cylinder and the liquid tank.

[0019] Furthermore, the connection between the metering cylinder and the liquid tank is via a plug and a reflux channel. The plug and reflux channel are arranged in a T-shape. The sealing assembly includes a plug block, which is slidably disposed within the plug cylinder. The plug block seals the plug cylinder, and when the plug block moves to a state that also seals the reflux channel, the connection between the metering cylinder and the liquid tank is closed. When the plug block is misaligned with the reflux channel, the solution in the metering cylinder enters the liquid tank through the plug and reflux channel.

[0020] The sealing assembly also includes a blocking rod, one end of which is connected to the blocking block, and the other end of which extends outside the metering cylinder. The other end of the blocking rod is provided with a handle, which is connected to the side plate by a connecting spring. Under the elastic support of the connecting spring, the blocking block is in a state of synchronously blocking the blocking cylinder and the return channel. In the state of synchronous blocking, the blocking block is located at the intersection of the T-shaped structure.

[0021] Furthermore, when no air is being blown into the air duct, the support spring is in a non-stressed state, which means that the support spring is in a naturally drooping state. At this time, the toothed disc and the lower part of the toothed part are in a meshing state; the length of the toothed part is equal to the semi-circular arc length of the toothed disc.

[0022] Compared with the prior art, the rehabilitation training device provided by the present invention has the following technical advantages:

[0023] First, when using this training device, air is blown into the air duct. When the teeth disengage from the toothed disc, the toothed disc rotates half a revolution, that is, the lifting frame moves from the bottom end of the stroke to the top end of the stroke. During this process, the piston moves upward in the liquid cylinder, allowing the solution in the liquid tank to be drawn into the liquid cylinder through the suction tube. When the patient stops blowing air, the lifting column moves down to its original position under the elastic reset action of the support spring. During the downward movement of the lifting column, the toothed disc rotates in the opposite direction half a revolution, causing the piston to move down in the liquid cylinder, squeezing the solution in the liquid cylinder into the measuring cylinder. This cycle repeats, and the amount of rehabilitation training performed by the patient is visually judged by observing the amount of solution in the measuring cylinder. After the patient finishes training, the plug is pushed to move, so that the plug and the return channel are in a conductive state, allowing the solution in the measuring cylinder to flow back into the liquid tank.

[0024] Secondly, when using the rehabilitation training equipment provided by the present invention, the position of the positioning block in the guide frame is first adjusted by the displacement component, and the elastic deformation range of the support spring is adjusted. Then, the patient blows air into the air tube using the air nozzle, air hose, and air outlet, causing the support shaft to rotate counterclockwise by a certain angle, thereby pushing the support rod to swing by a certain angle. The training intensity is adjusted in conjunction with the support spring. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention.

[0026] Figure 1 This is a structural diagram of a patient pulmonary function rehabilitation training device according to the present invention;

[0027] Figure 2 This is a partial structural diagram of the rehabilitation training device provided by the present invention;

[0028] Figure 3 for Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0029] Figure 4 A schematic diagram of the impedance mechanism provided by the present invention;

[0030] Figure 5 This is a schematic diagram of the liquid extraction mechanism provided by the present invention;

[0031] Figure 6 This is a schematic diagram of the push-pull assembly in the liquid extraction mechanism provided by the present invention;

[0032] Figure 7 A schematic diagram of the internal structure of the ventilation duct in the rehabilitation training device provided by the present invention;

[0033] Figure 8 This is a schematic diagram of the airflow direction in the ventilation duct of the rehabilitation training device provided by the present invention.

[0034] exist Figures 1-8 middle:

[0035] 100. Box body; 101. Suction cup; 102. Side panel; 103. Scale lines;

[0036] 200. Air duct; 201. Support shaft; 202. Support rod; 203. Strip-shaped through hole; 204. First wind baffle; 205. Second wind baffle; 206. Arc-shaped wind baffle block; 207. Air outlet; 208. Air outlet;

[0037] 300. Air nozzle; 301. Air hose;

[0038] 400. Guide frame; 401. Lifting column; 402. Gear; 403. Moving block; 404. First guide column; 405. Support spring; 406. Positioning block; 407. Internal thread adjusting cylinder; 408. Adjusting screw; 409. Adjusting handle;

[0039] 500, liquid tank;

[0040] 600. Measuring cylinder; 601. Plug rod; 602. Handle; 603. Connecting spring; 604. Return channel; 605. Plug cylinder; 606. Plug block;

[0041] 700. Hydraulic cylinder; 701. Drain pipe; 702. Drain check valve; 703. Suction pipe; 704. Suction check valve; 705. Piston; 706. Connecting rod; 707. Lifting frame; 708. Gear plate; 709. Second guide post. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0043] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0044] like Figure 1 and Figure 7As shown, in a preferred embodiment of the present invention, a patient pulmonary function rehabilitation training device includes a duct 200. A supporting shaft 201 is coaxially and rotatably mounted within the duct 200. A first baffle 204 and a second baffle 205 are integrally formed on the supporting shaft 201. An air outlet 207 and an air outlet 208 are respectively provided on the duct 200. The included angle between the air outlet 207, the supporting shaft 201, and the air outlet 208 is a first angle; the included angle between the first baffle 204, the supporting shaft 201, and the second baffle 205 is a second angle. The first angle is greater than the second angle, and the first angle is less than 180 degrees. Thus, as... Figure 8 As shown, when air enters through the air outlet 207, the air pressure inside the air duct 200 continuously increases, causing the support shaft 201 to rotate counterclockwise. As the support shaft 201 continues to rotate counterclockwise, until the first baffle 204 passes the air outlet 208, the second baffle 205 has not yet moved to the position of the air outlet 207. At this time, the airflow enters through the air outlet 207 and is discharged through the air outlet 208.

[0045] Preferably, in this embodiment of the invention, the ends of the first wind baffle 204 and the second wind baffle 205 are each provided with an arc-shaped wind baffle block 206 to improve the dynamic sealing effect at the connection between the ends of the first wind baffle 204 and the second wind baffle 205 and the inner wall of the air duct 200.

[0046] Please continue reading. Figure 1 In this embodiment of the invention, the air outlet 207 is connected to the air nozzle 300 via the air hose 301. The patient blows air through the air nozzle 300, so that air enters the air duct 200 through the air outlet 207.

[0047] Please continue reading. Figure 1 The air duct 200 is fixedly installed on the housing 100. The bottom of the housing 100 is provided with a suction cup 101, which makes it easy to attach the training device to the table and fix the training device.

[0048] Please continue reading. Figure 1 and Figure 4 In this embodiment of the invention, an impedance mechanism is also fixedly installed on the housing 100. The impedance mechanism is linked with the support shaft 201. The impedance mechanism is used to limit the rotation tendency of the support shaft 201. The impedance mechanism includes a guide frame 400. A moving block 403 and a positioning block 406 are slidably supported in the guide frame 400. The moving block 403 and the positioning block 406 are connected by a support spring 405. The position of the positioning block 406 in the guide frame 400 is adjusted by a displacement component.

[0049] The displacement assembly includes an internal threaded adjusting cylinder 407, which is fixedly mounted on the positioning block 406. An adjusting screw 408 is rotatably disposed on the top plate of the guide frame 400. One end of the adjusting screw 408 is screwed into the internal threaded adjusting cylinder 407 via a threaded connection, and the other end of the adjusting screw 408 is provided with an adjusting handle 409. The adjusting handle 409 drives the adjusting screw 408 to rotate, thereby pushing the internal threaded adjusting cylinder 407 to move, which in turn drives the positioning block 406 to move, thereby adjusting the position of the positioning block 406 on the guide frame 400.

[0050] Furthermore, in this embodiment of the invention, a first guide post 404 is fixedly provided on the moving block 403, and a lifting post 401 is fixedly provided on the moving block 403, with a toothed portion 402 on one side of the lifting post 401.

[0051] Please continue reading. Figure 1 In this embodiment of the invention, the end of the support shaft 201 is fixedly connected to one end of the support rod 202. The support rod 202 has a strip-shaped through hole 203. The first guide post 404 slides against the strip-shaped through hole 203 so that when the support shaft 201 rotates, it drives the support rod 202 to rotate. Under the pushing action of the first guide post 404, the rotating support rod 202 causes the moving block 403 to be displaced in the guide frame 400. The support spring 405 plays a role in limiting the rotation tendency of the support shaft 201. The impedance mechanism provided by the present invention can also use the displacement component to adjust the position of the positioning block 406 in the guide frame 400 to adjust the elastic deformation stroke range of the support spring 405.

[0052] Therefore, it can be understood that when using the rehabilitation training equipment provided by the present invention, the position of the positioning block 406 within the guide frame 400 is first adjusted using the displacement component, and the elastic deformation range of the support spring 405 is adjusted. Then, the patient blows air into the air duct 200 using the air nozzle 300, air hose 301, and air outlet 207, causing the support shaft 201 to rotate counterclockwise by a certain angle, thereby pushing the support rod 202 to swing by a certain angle. This, in conjunction with the support spring 405, allows for the adjustment of the training intensity.

[0053] Please continue reading. Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6To provide a direct representation of the training volume in rehabilitation exercises, in this embodiment of the invention, a liquid tank 500, a measuring cylinder 600, and a liquid cylinder 700 are fixedly mounted on the housing 100. A piston 705 is installed inside the liquid cylinder 700. The piston 705 is fixedly connected to the bottom end of a connecting rod 706. A lifting frame 707 is fixedly connected to the top end of the connecting rod 706. The lifting frame 707 is slidably sleeved on a second guide post 709. 09 is eccentrically fixed on one side of the gear disk 708. The gear disk 708 is rotatably supported at the top opening of the hydraulic cylinder 700. The gear disk 708 can mesh with the teeth 402. When the teeth 402 mesh with the gear disk 708, the displacement of the lifting column 401 drives the gear disk 708 to rotate. The rotating gear disk 708 causes the second guide column 709 to make a circular motion, thereby pushing the piston 705 to move vertically back and forth in the hydraulic cylinder 700.

[0054] For further information, please refer to [link / reference]. Figure 2 and Figure 5 In this embodiment of the invention, a liquid extraction pipe 703 is connected to the bottom end of the liquid cylinder 700, and the other end of the liquid extraction pipe 703 extends into the liquid tank 500. A one-way liquid extraction valve 704 is provided on the liquid extraction pipe 703, which is used to allow the solution in the liquid tank 500 to enter the liquid cylinder 700 unidirectionally through the liquid extraction pipe 703. A drain pipe 701 is also connected to the bottom end of the liquid cylinder 700, and the other end of the drain pipe 701 extends into the metering cylinder 600. A one-way drain valve 702 is also provided on the drain pipe 701, which is used to allow the solution in the liquid cylinder 700 to enter the metering cylinder 600 unidirectionally through the drain pipe 701.

[0055] Preferably, in this embodiment of the invention, one side of the measuring cylinder 600 is a side plate 102, and the side plate 102 is provided with a scale line 103 corresponding to the measuring cylinder 600. The scale line 103 is used to read the liquid level height in the measuring cylinder 600.

[0056] Please continue reading. Figure 2 and Figure 3 In this embodiment of the invention, the bottom of the measuring cylinder 600 is connected to the liquid tank 500, and a sealing component is provided at the bottom of the measuring cylinder 600 to seal the connection between the bottom of the measuring cylinder 600 and the liquid tank 500.

[0057] Specifically, in this embodiment of the invention, the connection between the metering cylinder 600 and the liquid tank 500 is through a plug 605 and a return channel 604. The plug 605 and the return channel 604 are distributed in a T-shape. The sealing assembly includes a plug block 606, which is slidably disposed within the plug 605. The plug block 606 seals the plug 605, and when the plug block 606 moves to a state that also seals the return channel 604, the connection between the metering cylinder 600 and the liquid tank 500 is in a closed state. When the plug block 606 is misaligned with the return channel 604, the solution in the metering cylinder 600 enters the liquid tank 500 through the plug 605 and the return channel 604.

[0058] Furthermore, the sealing assembly also includes a blocking rod 601, one end of which is connected to the blocking block 606, and the other end of which extends outside the metering cylinder 600. The other end of the blocking rod 601 is provided with a handle 602, which is connected to the side plate 102 by a connecting spring 603. Under the elastic support of the connecting spring 603, the blocking block 606 is in a state of synchronously blocking the blocking cylinder 605 and the return channel 604. In the state of synchronous blocking, the blocking block 606 is located at the intersection of the T-shaped structure.

[0059] Furthermore, in this embodiment of the invention, when no air is being blown into the air duct 200, the support spring 405 is in a non-stressed state. This non-stressed state means that the support spring 405 is in a naturally drooping state. At this time, the gear disc 708 is engaged with the lower part of the teeth 402. The length of the teeth 402 is equal to the semi-circular arc length of the gear disc 708. Therefore, when air is blown into the air duct 200, when the teeth 402 disengage from the gear disc 708, the gear disc 708 rotates half a revolution, that is, the lifting frame 707 moves from the bottom of its stroke to the top of its stroke. During this process, the piston 705 moves upward within the hydraulic cylinder 700, causing the liquid tank 500 to... The solution inside is drawn into the liquid cylinder 700 through the suction tube 703. When the patient stops blowing air, the elastic reset action of the support spring 405 causes the lifting column 401 to move down to its original position. During the downward movement of the lifting column 401, it drives the toothed disc 708 to rotate half a turn in the opposite direction, causing the piston 705 to move down in the liquid cylinder 700 to squeeze the solution in the liquid cylinder 700 into the measuring cylinder 600. This cycle is repeated, and the amount of solution in the measuring cylinder 600 is observed to visually determine the amount of rehabilitation training the patient is undergoing. After the patient finishes training, the plug 606 is pushed to move, so that the plug 605 and the return channel 604 are in a conductive state, and the solution in the measuring cylinder 600 flows back into the liquid tank 500.

[0060] The above solutions are merely illustrative examples of preferred embodiments and are not intended to limit the scope of the invention. Appropriate substitutions and / or modifications can be made according to user needs when implementing this invention.

[0061] The number of devices and processing scale described herein are for the purpose of simplifying the description of the invention. Applications, modifications, and variations of the invention will be readily apparent to those skilled in the art.

[0062] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for the present invention. Other modifications can be readily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and examples shown and described herein.

Claims

1. A patient lung function rehabilitation training device, comprising a duct (200) fixed to a housing (100); Its features are: The inner cavity of the air duct (200) is coaxially supported and rotatably provided with a support shaft (201). The support shaft (201) is integrally formed with a first wind baffle (204) and a second wind baffle (205). The air duct (200) is provided with a blower (207) and an air outlet (208). An impedance mechanism is also fixedly installed on the housing (100). The impedance mechanism is linked with the support shaft (201). The impedance mechanism includes a guide frame (400). A moving block (403) and a positioning block (406) are slidably supported in the guide frame (400). The moving block (403) and the positioning block (406) are connected by a support spring (405). The position of the positioning block (406) in the guide frame (400) is adjusted by a displacement component. The air outlet (207) is connected to the air nozzle (300) via an air blowing hose (301); The included angle between the air outlet (207), the support shaft (201), and the air outlet (208) is a first angle; the included angle between the first baffle plate (204), the support shaft (201), and the second baffle plate (205) is a second angle; the first angle is greater than the second angle, and the first angle is less than 180 degrees; the ends of the first baffle plate (204) and the second baffle plate (205) are each provided with an arc-shaped baffle block (206); a first guide post (404) is also fixedly provided on the moving block (403), and a lifting post (401) is also fixedly provided on the moving block (403), and one side of the lifting post (401) has a tooth (402). The end of the supporting shaft (201) is fixedly connected to one end of the supporting rod (202). The supporting rod (202) has a strip-shaped through hole (203). The first guide post (404) slides against the strip-shaped through hole (203). The housing (100) is also fixedly provided with a liquid tank (500), a measuring cylinder (600), and a liquid cylinder (700). A piston (705) is provided inside the liquid cylinder (700). The piston (705) is fixedly connected to the bottom end of the connecting rod (706). A lifting frame (707) is fixedly connected to the top end of the connecting rod (706). The lifting frame (707) is slidably sleeved on the second guide post (709). The second guide post (709) is eccentrically fixedly installed on one side of the gear plate (708). The gear plate (708) is rotatably supported at the top opening of the liquid cylinder (700). The toothed disc (708) can mesh with the toothed part (402); a liquid extraction pipe (703) is connected to the bottom end of the liquid cylinder (700), the other end of the liquid extraction pipe (703) extends into the liquid tank (500), and a liquid extraction check valve (704) is provided on the liquid extraction pipe (703). The liquid extraction check valve (704) is used to allow the solution in the liquid tank (500) to enter the liquid tank (500) unidirectionally through the liquid extraction pipe (703). Inside the liquid cylinder (700); a drain pipe (701) is also connected to the bottom end of the liquid cylinder (700), and the other end of the drain pipe (701) extends into the metering cylinder (600). A drain one-way valve (702) is also provided on the drain pipe (701). The drain one-way valve (702) is used to allow the solution in the liquid cylinder (700) to enter the metering cylinder (600) unidirectionally through the drain pipe (701).

2. The patient pulmonary function rehabilitation training device according to claim 1, characterized in that, The displacement assembly includes an internal threaded adjusting cylinder (407), which is fixedly mounted on the positioning block (406); An adjusting screw (408) is rotatably and through the top plate of the guide frame (400). One end of the adjusting screw (408) is screwed into the internal thread adjusting cylinder (407) via a threaded connection, and the other end of the adjusting screw (408) is provided with an adjusting handle (409).

3. The patient pulmonary function rehabilitation training device according to claim 2, characterized in that, One side of the measuring cylinder (600) is a side plate (102), and the side plate (102) is provided with scale lines (103) corresponding to the measuring cylinder (600).

4. The patient pulmonary function rehabilitation training device according to claim 3, characterized in that, The bottom of the metering cylinder (600) is connected to the liquid tank (500); A sealing assembly is provided at the bottom of the metering cylinder (600), which is used to seal the connection between the bottom of the metering cylinder (600) and the liquid tank (500).

5. The patient pulmonary function rehabilitation training device according to claim 4, characterized in that, The connection between the metering cylinder (600) and the liquid tank (500) is through a plug cylinder (605) and a return channel (604). The plug cylinder (605) and the return channel (604) are distributed in a T-shape. The sealing assembly includes a plug block (606), which is slidably and sealingly disposed inside the plug cylinder (605). The sealing assembly also includes a blocking rod (601), one end of which is connected to the blocking block (606), and the other end of which extends outside the metering cylinder (600). The other end of the blocking rod (601) is provided with a handle (602), and the handle (602) is connected to the side plate (102) by a connecting spring (603). Under the elastic support of the connecting spring (603), the blocking block (606) is in a state of synchronously sealing the blocking cylinder (605) and the return channel (604).

6. The patient pulmonary function rehabilitation training device according to claim 5, characterized in that, When no air is blown into the air duct (200), the support spring (405) is in a non-stressed state, and the toothed disc (708) is in a meshing state with the lower part of the tooth (402). The length of the tooth (402) is equal to the length of the semicircular arc of the toothed disc (708).

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