A respiratory resistance dynamically adjusted lung function training device

Abstract

The present application relates to the field of rehabilitation training apparatus, more specifically, it relates to a kind of respiratory resistance dynamic adjustment type lung function training device, including respiratory training device, also include the breathing hose being arranged at one end of the respiratory training device, and the gear adjusting valve being arranged at the other end of the respiratory training device, the airflow passage being close to the breathing hose one end of the respiratory training device is provided with resistance adjusting plate, and the resistance adjusting plate is composed of horizontal section and vertical section, and it is T-shaped arrangement, the intersection of the horizontal section and vertical section is provided with limit stop shaft, and the airflow passage inner wall where the resistance adjusting plate is located is provided with stop groove matched with limit stop shaft rotation, the present application solves the problem that the conventional respiratory training device cannot meet the individual training needs of patients due to the use of fixed gear adjustment and lacks timely blocking mechanism when breathing is not standardized, affects the rehabilitation training effect.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation training equipment, and more specifically, to a respiratory resistance dynamically adjustable pulmonary function training device. Background Technology

[0002] In respiratory rehabilitation training, pulmonary function training is an important means to improve patients' respiratory function and promote disease recovery. Patients usually use breathing trainers to perform regular breathing exercises in order to strengthen respiratory muscle strength, increase vital capacity and improve ventilation function.

[0003] However, traditional breathing trainers typically rely on fixed-level adjustment valves to set airflow resistance to meet the training needs of different users. This fixed-level adjustment method makes it difficult to accurately match the actual needs of each user, resulting in poor training effects.

[0004] For users with weak breathing capacity, a fixed high resistance level may make it difficult for them to complete the training movements, or even put excessive strain on their respiratory muscles. For users with strong breathing capacity, a low resistance level may not provide enough challenge, resulting in poor training results.

[0005] On the other hand, traditional breathing trainers lack effective feedback and blocking mechanisms when users perform improper breathing exercises, such as rapid inhalation and exhalation. Improper breathing not only fails to achieve the expected training effect, but may also damage the user's respiratory muscles. Although some trainers remind users to pay attention to their breathing methods by adding warning signs or instructions, these methods cannot stop the training in time when users perform improper breathing.

[0006] To address the aforementioned issues, a dynamic breathing resistance-adjustable lung function training device is proposed. Summary of the Invention

[0007] (a) Technical problems to be solved To address the problems existing in the prior art, the present invention provides a dynamically adjustable respiratory resistance pulmonary function training device to solve the problems mentioned in the background art, such as the inability of traditional respiratory trainers to meet the personalized training needs of patients due to fixed-level adjustment and the lack of a timely blocking mechanism for irregular breathing, which affects the rehabilitation training effect.

[0008] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a breathing resistance dynamically adjustable lung function training device, comprising a breathing trainer, a breathing hose disposed at one end of the breathing trainer, and a gear adjustment valve disposed at the other end of the breathing trainer. A resistance adjustment plate is disposed in the airflow channel of the breathing trainer near the breathing hose end, and the resistance adjustment plate is composed of a horizontal section and a vertical section and is T-shaped. A limit anti-rotation shaft is disposed at the junction of the horizontal section and the vertical section, and an anti-rotation groove matching the rotation of the limit anti-rotation shaft is opened on the inner wall of the airflow channel where the resistance adjustment plate is located. Under the action of standard breathing airflow, the breathing resistance is dynamically adjusted by changing the diameter of the airflow channel through the rotation of the resistance adjustment plate; When the resistance adjustment plate rotates to a vertical position, it closes the airflow channel, thus preventing the user from performing non-standard training. The outer ring of the resistance adjustment plate is provided with a resistance application ring that abuts against it, and the top of the resistance application ring is provided with a tension spring that is fixedly connected to the top of the airflow channel. The resistance application ring is U-shaped, and the arc surface of the U-shape of the resistance application ring is symmetrically provided with a first resistance surface, a resistance block and a second resistance surface. The resistance block is located between the first resistance surface and the second resistance surface, and the first resistance surface and the second resistance surface are not concentric with the axis of the resistance adjustment plate.

[0009] The present invention is further configured such that the limiting anti-rotation shaft includes a rotating shaft disposed at both ends of the resistance adjusting plate, and an anti-rotation block disposed on the outer circumferential wall of the rotating shaft near one end of the resistance adjusting plate; The anti-rotation block and the resistance adjustment plate are oriented in the same direction.

[0010] The present invention is further configured such that the anti-rotation groove includes a rotation groove that matches the rotation of the rotation shaft, and a semi-circular groove that matches the rotation of the anti-rotation block.

[0011] The present invention is further configured such that a gravity block is provided at the lower end of the vertical section of the resistance regulating plate, and the resistance regulating plate is initially configured such that the vertical section vertically blocks half of the airflow channel under the action of the gravity block.

[0012] The present invention is further configured such that the distance from the end point of the first resistance surface away from the resistance block to the limiting anti-rotation shaft is less than the distance from the end point of the first resistance surface near the resistance block to the limiting anti-rotation shaft. The distance from the end of the second resistance surface furthest from the resistance block to the limit stop shaft is greater than the distance from the end of the second resistance surface closest to the resistance block to the limit stop shaft.

[0013] The present invention is further configured such that there is an active distance between the resistance application ring and the bottom of the airflow channel, which pushes the resistance adjustment plate downward when it rotates.

[0014] The present invention is further configured such that both ends of the horizontal section of the resistance adjustment plate are provided with abutment grooves, and the gravity block at the lower end of the vertical section of the resistance adjustment plate is provided with a clearance groove that matches the movement of the resistance application ring.

[0015] The present invention is further configured such that guide cylinders are movably provided at both ends of the U-shaped resistance application ring, and one end of the guide cylinder is fixedly installed at the top of the inner wall of the airflow channel, and the tension spring is disposed inside the guide cylinder.

[0016] The present invention is further configured such that the resistance block is positioned at a 45-degree angle of rotation of the resistance adjustment plate, and the breathing airflow within a 45-degree angle of rotation of the resistance adjustment plate is the standard breathing airflow at the current gear adjustment valve setting. The airflow resistance generated by the airflow channel formed by rotating the resistance regulating plate within a 45-degree angle is less than the resistance adjustment of one gear of the gear regulating valve.

[0017] The present invention is further configured such that the gravity of the gravity block is greater than the rotational resistance when the resistance adjusting plate and the resistance applying ring are in contact; The power of the standard breathing airflow is greater than the rotational resistance of the resistance regulating plate when it contacts the first resistance surface, and the power of the standard breathing airflow is less than the rotational resistance of the resistance regulating plate when it contacts the resistance block.

[0018] (III) Beneficial Effects Compared with the prior art, the present invention provides a lung function training device with dynamic adjustment of respiratory resistance, which has the following beneficial effects: 1. This invention achieves dynamic airflow resistance adjustment by setting a T-shaped resistance adjustment plate in the airflow channel and changing the channel diameter in real time in conjunction with the user's breathing airflow. Compared with traditional breathing trainers, this design can provide dynamic adaptation of airflow resistance between gears based on the user's breathing capacity and the airflow resistance adjusted on the basis of the gear adjustment valve. This avoids the problem of excessive load on the respiratory muscles due to excessively high gears or poor training effect due to excessively low gears, thereby improving the rehabilitation effect.

[0019] 2. This invention provides a clicking sound during non-standard breathing training by setting up a resistance block. Furthermore, through the cooperation of the limiting anti-rotation shaft and the anti-rotation groove, the resistance adjustment plate is triggered to vertically block the airflow channel during rapid inhalation and exhalation, thus preventing incorrect training and effectively avoiding the risk of respiratory muscle damage caused by the lack of feedback in traditional breathing trainers. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a dynamic respiratory resistance-adjustable lung function training device.

[0021] Figure 2A schematic cross-sectional view of the airflow channel containing the resistance adjustment plate and resistance application ring in a breathing trainer.

[0022] Figure 3 A schematic diagram of the exploded structure of the resistance adjustment plate, resistance application ring, and tension spring.

[0023] Figure 4 This is a schematic diagram of the resistance adjustment plate and the limit anti-rotation shaft.

[0024] Figure 5 A schematic diagram of the assembly structure for the limiting anti-rotation shaft and the anti-rotation groove.

[0025] Figure 6 A schematic diagram of the structure for applying resistance using a ring.

[0026] Figure 7 This is a structural diagram showing the distances from each point on the first and second resistance surfaces to the center of the limit stop shaft.

[0027] In the diagram: 1. Breathing trainer; 2. Breathing hose; 3. Gear adjustment valve; 4. Resistance adjustment plate; 401. Horizontal section; 402. Vertical section; 403. Gravity block; 404. Contact groove; 405. Clearance groove; 5. Limiting anti-rotation shaft; 501. Rotating shaft; 502. Anti-rotation block; 6. Anti-rotation groove; 601. Rotating groove; 602. Semicircular groove; 7. Resistance application ring; 701. First resistance surface; 702. Resistance block; 703. Second resistance surface; 8. Tension spring; 9. Guide cylinder. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0031] For examples, please refer to Figure 1 - Figure 7A dynamic respiratory resistance adjustment lung function training device includes a breathing trainer 1, a breathing hose 2 disposed at one end of the breathing trainer 1, and a gear adjustment valve 3 disposed at the other end of the breathing trainer 1. The breathing trainer 1 is an existing conventional training device, which will not be described in detail here.

[0032] This application improves upon the conventional breathing trainer 1 to obtain a breathing trainer 1 that can more precisely adjust breathing resistance according to the user's physical condition and other conditions, and standardize the user's training. Its structure mainly includes a resistance adjustment plate 4 installed in the airflow channel near the breathing hose 2 of the breathing trainer 1. The resistance adjustment plate 4 is composed of a horizontal section 401 and a vertical section 402, and is arranged in a T-shape. A limit anti-rotation shaft 5 is provided at the junction of the horizontal section 401 and the vertical section 402. The inner wall of the airflow channel where the resistance adjustment plate 4 is located is provided with an anti-rotation groove 6 that matches the rotation of the limit anti-rotation shaft 5. Under the action of standard breathing airflow, the breathing resistance is dynamically adjusted by changing the diameter of the airflow channel by rotating the resistance adjustment plate 4; When the resistance adjustment plate 4 is rotated to the vertical position, it closes the airflow channel and blocks the user's non-standard training. The outer ring of the resistance adjustment plate 4 is provided with a resistance application ring 7 that abuts against it, and the top of the resistance application ring 7 is provided with a tension spring 8 that is fixedly connected to the top of the airflow channel. The resistance application ring 7 is U-shaped, and the arc surface of the U-shape of the resistance application ring 7 is symmetrically provided with a first resistance surface 701, a resistance block 702 and a second resistance surface 703. The resistance block 702 is located between the first resistance surface 701 and the second resistance surface 703, and the first resistance surface 701 and the second resistance surface 703 are not concentric with the axis of the resistance adjustment plate 4.

[0033] It mainly changes the airflow channel diameter by rotating the T-shaped resistance adjustment plate 4, thereby changing the airflow resistance. The driving force for the rotation of the T-shaped resistance adjustment plate 4 is the user's breathing airflow. When the user uses it, the size of the breathing airflow will drive the resistance adjustment plate 4 to rotate to different angles. The resistance adjustment plate 4 at different angles forms different diameters in the airflow channel, thus creating different dynamic airflow resistances to suit the user's exercise.

[0034] For example, assuming the gear adjustment valve 3 is set to a 2-level airflow resistance, when the user uses the device, the actual airflow resistance experienced is the 2-level airflow resistance plus the airflow resistance generated by the reduced diameter of the resistance adjustment plate 4 after rotation. Since the airflow resistance generated by the reduced diameter of the resistance adjustment plate 4 after rotation is a dynamic resistance automatically generated based on the user's breathing airflow, the user can obtain more precise breathing training with airflow resistance tailored to their own needs.

[0035] Specifically, before training, the user adjusts the initial airflow resistance at the gear adjustment valve 3 according to their own situation. Then, during breathing training, the airflow generated by the user's breathing will cause the T-shaped resistance adjustment plate 4 to rotate. When rotating, the horizontal section 401 of the resistance adjustment plate 4 abuts against the first resistance surface 701, forming a certain resistance. Since the center of the first resistance surface 701 and the axis of the resistance adjustment plate 4 are not concentric, the force of the resistance adjustment plate 4 against the first resistance surface 701 when rotating is also different. As a result, the force generated by the breathing airflow required for each angle of the resistance adjustment plate 4 when rotating is different, which allows it to be dynamically adjusted according to the user's breathing situation, so that the user can get a more precise and suitable airflow resistance during breathing training, thereby achieving a better rehabilitation training effect.

[0036] It should be noted that the initial airflow resistance adjusted at point 3 of the gear adjustment valve is obtained by the user through multiple experiments based on their own situation, or adjusted according to training standards.

[0037] Secondly, when using the device for the first time for training, users are unclear about how to perform standardized breathing training and may inhale and exhale forcefully without realizing it, thus rendering their rehabilitation training ineffective. Furthermore, this forceful breathing training can damage the user's respiratory muscles. In this application, by setting the limiting anti-rotation shaft 5 and the anti-rotation groove 6, the T-shaped resistance adjustment plate 4 is limited to rotate 90 degrees during forceful inhalation and exhalation. This causes the horizontal section 401 of the resistance adjustment plate 4 to vertically block the airflow channel, resulting in a sudden increase in airflow resistance within the airflow channel during breathing. This interrupts the user's current breathing training, thereby informing the user that their forceful breathing training method is problematic.

[0038] Preferably, the resistance adjustment plate 4 is located in the airflow channel of the breathing trainer 1 near the end of the breathing hose 2. During rapid inhalation and exhalation, the resistance adjustment plate 4 reacts quickly, ensuring that the user's breathing preparation is not wasted. For example, during exhalation training, the user needs to inhale first, allowing air to accumulate in the chest cavity. During a rapid exhalation, the resistance adjustment plate 4 rotates 90 degrees quickly, blocking the airflow channel. This causes a small amount of air to be released from the user's chest cavity, which then cannot be released further. At this point, simply slowing down the breathing prevents the airflow from driving the resistance adjustment plate 4 to rotate to 90 degrees, causing it to return to its original position and open the airflow channel, thus allowing the user to find a suitable airflow resistance for training. The limiting anti-rotation shaft 5 includes rotating shafts 501 located at both ends of the resistance adjustment plate 4, and an anti-rotation block 502 located on the outer circumference of the rotating shaft 501 near the end of the resistance adjustment plate 4. The anti-rotation block 502 and the resistance adjustment plate 4 face the same direction.

[0039] The anti-rotation groove 6 includes a rotation groove 601 that matches the rotation of the rotation shaft 501, and a semi-circular groove 602 that matches the rotation of the anti-rotation block 502.

[0040] The rotating shaft 501 rotates within the rotating groove 601, serving as a support for the resistance adjusting plate 4. The anti-rotation block 502 is located at the center of the semi-circular groove 602. When the resistance adjusting plate 4 rotates, it drives the rotating shaft 501 to rotate, thereby driving the anti-rotation block 502 to rotate. According to the action of exhalation and inhalation, it rotates 90 degrees in the airflow direction, that is, the anti-rotation block 502 abuts against the horizontal inner wall of the semi-circular groove 602.

[0041] A gravity block 403 is provided at the lower end of the vertical section 402 of the resistance regulating plate 4, and under the action of the gravity block 403, the initial state of the resistance regulating plate 4 is that the vertical section 402 vertically blocks half of the airflow channel.

[0042] When the user is training to inhale and exhale forcefully, the vertical section 402 of the resistance adjustment plate 4, which vertically blocks the airflow channel, becomes horizontal. Then, when the user is unable to breathe, by slowing down their breathing, the resistance adjustment plate 4 rotates back under the action of the gravity block 403 to reset.

[0043] The distance from the end of the first resistance surface 701 away from the resistance block 702 to the limit stop shaft 5 is less than the distance from the end of the first resistance surface 701 near the resistance block 702 to the limit stop shaft 5. The distance from the end point of the second resistance surface 703 away from the resistance block 702 to the limit stop shaft 5 is greater than the distance from the end point of the second resistance surface 703 near the resistance block 702 to the limit stop shaft 5.

[0044] Under the action of gravity block 403, when the vertical section 402 of the resistance adjustment plate 4 blocks half of the airflow channel, its horizontal section 401 is in a horizontal state. At this time, the two ends of the horizontal section 401 are in contact with the first resistance surface 701 at the end away from the resistance block 702. Therefore, when the user is breathing, the airflow drives the resistance adjustment plate 4, which causes the horizontal section 401 of the resistance adjustment plate 4 to rotate and contact the first resistance surface 701. Since the distance from the end of the first resistance surface 701 away from the resistance block 702 to the limit stop shaft 5 is less than the distance from the end of the first resistance surface 701 near the resistance block 702 to the limit stop shaft 5, when it rotates, it will push the resistance application ring 7 downward, which will stretch the tension spring 8. As a result, the resistance to the rotation of the resistance adjustment plate 4 becomes greater and greater. That is, when the airflow is greater, the angle of rotation of the resistance adjustment plate 4 is greater. Under the relative force of the resistance application ring 7, the rotation angle of the resistance adjustment plate 4 can be made more dynamic and stable.

[0045] Specifically, without the resistance application ring 7, the airflow channel diameter is adjusted by rotating the resistance regulating plate 4 solely through breathing force, dynamically changing the airflow resistance. However, since human breathing cannot remain stable, the resistance regulating plate 4 will exhibit high-frequency rotational changes under fluctuating breathing. Furthermore, when the resistance regulating plate 4 rotates to adjust the airflow channel diameter, the airflow channel diameter is split in two, with airflow flowing vertically from the resistance regulating plate 4. This vertical airflow interferes with the rotation of the resistance regulating plate 4, causing unstable, oscillating rotation, which in turn affects the dynamic changes in air resistance. In this application, after the vertical airflow acts on the resistance regulating plate 4, the resistance application ring 7 exerts a relative force on the resistance regulating plate 4, enabling stable rotation without oscillation, thus achieving stable dynamic airflow resistance adjustment.

[0046] The resistance application ring 7 has an active distance from the bottom of the airflow channel where the resistance adjustment plate 4 is pushed downward when it rotates.

[0047] Both ends of the horizontal section 401 of the resistance adjustment plate 4 are provided with abutment grooves 404, and the gravity block 403 at the lower end of the vertical section 402 of the resistance adjustment plate 4 is provided with a relief groove 405 that matches the movement of the resistance application ring 7.

[0048] The resistance application ring 7 is positioned at the center of the resistance adjustment plate 4, and its axis is perpendicular to the airflow direction, avoiding the influence of airflow during breathing training. The U-shaped ends of the resistance application ring 7 pass through the contact groove 404, and the arc-shaped section of the U-shape passes through the clearance groove 405. The contact groove 404 and clearance groove 405 are in contact with the resistance application ring 7 in the axial direction of the limiting and anti-rotation shaft 5, thus limiting the resistance application ring 7. The clearance groove 405 has a gap with the resistance application ring 7 in the vertical direction, reducing the contact between the resistance adjustment plate 4 and the resistance application ring 7, facilitating the rotation of the resistance adjustment plate 4. The lower end of the gravity block 403 protrudes from the resistance application ring 7, allowing it to conform to the bottom of the inner wall of the airflow channel. Guide cylinders 9 are movably mounted at both ends of the U-shape of the resistance application ring 7, with one end of the guide cylinder 9 fixedly installed at the top of the inner wall of the airflow channel. A tension spring 8 is located inside the guide cylinder 9.

[0049] By setting the guide cylinder 9, the resistance application ring 7 is limited in the vertical direction, which prevents the resistance application ring 7 from shifting in a non-vertical direction when the resistance adjustment plate 4 touches the first resistance surface 701 on the resistance application ring 7.

[0050] The resistance block 702 is positioned at a 45-degree angle of rotation of the resistance adjustment plate 4, and the breathing airflow within a 45-degree angle of rotation of the resistance adjustment plate 4 is the standard breathing airflow for the current gear adjustment valve 3 setting gear. The airflow resistance generated by the airflow channel formed by the resistance regulating plate 4 rotating within a 45-degree angle is less than the resistance adjustment of the gear regulating valve 3 by one gear.

[0051] When a user trains using standard breathing airflow, the pushing and pulling force of their breathing airflow causes the resistance adjustment plate 4 to rotate within a 45-degree angle range. This allows the user to experience dynamic airflow resistance that fluctuates within the range set by the gear adjustment valve 3. Furthermore, the dynamic airflow resistance is designed to be one gear lower than the resistance of the gear adjustment valve 3, enabling it to dynamically increase the adapted airflow resistance based on changes in breathing, on top of the base airflow resistance set by the gear adjustment valve 3. This allows the user to receive airflow resistance training that is most suitable for them during training.

[0052] The main solution addresses the problem that the airflow resistance between the three gear positions of the current gear adjustment valve is a fixed value, which, after adjustment, cannot better adapt to the user. This results in situations where the airflow resistance is too high or too low, leading to poor breathing training effects. By driving the resistance adjustment plate 4 to rotate and contact the first resistance surface 701 according to the user's breathing push and pull force, the valve rotates within a 45-degree angle, changing the airflow channel diameter and dynamically increasing the airflow resistance of the gear adjustment valve 3 by one gear. This allows the user to train with the optimal airflow resistance, thereby improving the training effect.

[0053] The weight of the gravity block 403 is greater than the rotational resistance when the resistance adjustment plate 4 and the resistance application ring 7 are in contact. This rotational resistance includes the resistance of the resistance adjustment plate 4 over the resistance block 702. When the user trains using an airflow exceeding the standard, the pushing and pulling force of the airflow causes the resistance adjustment plate 4 to rotate more than 45 degrees, causing it to overtake the resistance block 702. The resistance adjustment plate 4 will then contact the end of the second resistance surface 703 closest to the resistance block 702. The distance from the end point of the resistance block 702 to the limit stop shaft 5 is less than the distance from the end point of the second resistance surface 703 away from the resistance block 702 to the limit stop shaft 5. At this time, under the action of breathing force, the horizontal section 401 of the resistance adjustment plate 4 can easily rotate to a vertical state, thereby triggering the error training warning of sudden breathing, blocking the airflow channel, slowing down the user's breathing, and then allowing the resistance adjustment plate 4 to rotate and reset under the action of gravity block 403, so that the resistance adjustment plate 4 passes the resistance block 702 and returns to the 45-degree rotation range. At this time, breathing training can continue.

[0054] The power of the standard breathing airflow is greater than the rotational resistance when the resistance regulating plate 4 touches the first resistance surface 701, and the power of the standard breathing airflow is less than the rotational resistance when the resistance regulating plate 4 touches the resistance block 702.

[0055] The rotational resistance of the resistance adjusting plate 4 when it contacts the first resistance surface 701 includes the driving force required when the resistance adjusting plate 4 does not contact the first resistance surface 701 and only rotates idly, as well as the basic frictional force between the resistance adjusting plate 4 and the first resistance surface 701 when it rotates, and the squeezing frictional force of the first resistance surface 701 on the resistance applying ring 7 on the resistance adjusting plate 4 when the tension spring 8 pulls the resistance applying ring 7 upward. Secondly, the rotational resistance when the resistance adjusting plate 4 abuts the resistance block 702 includes the driving force required when the resistance adjusting plate 4 does not abut the first resistance surface 701 and only rotates idly, the basic frictional force between the resistance adjusting plate 4 and the resistance block 702 when the resistance adjusting plate 4 rotates, and the squeezing frictional force of the resistance block 702 on the resistance applying ring 7 on the resistance adjusting plate 4 when the tension spring 8 pulls the resistance applying ring 7 upward.

[0056] Furthermore, by setting the resistance block 702 between the first resistance surface 701 and the second resistance surface 703, the magnitude of the standard breathing airflow is defined. That is, during standard breathing, it is necessary to ensure that the resistance adjustment plate 4 cannot rotate beyond the resistance block 702, and the resistance block 702 is set as a protrusion between the first resistance surface 701 and the second resistance surface 703. When the user trains with non-standard breathing airflow, when the resistance adjustment plate 4 rotates past the resistance block 702, a clicking sound will occur, indicating that the pushing and pulling force of the breathing airflow is too large.

[0057] Working Principle: When using the breathing trainer 1, firstly, based on your physical condition and training needs, set the initial airflow resistance at the gear adjustment valve 3. This provides a reference for subsequent dynamic resistance adjustment. After setting, start the breathing training through the breathing hose 2. During breathing, the exhaled and inhaled airflow generates a pushing and pulling force. This pushing and pulling force pushes the vertical section 402 on the resistance adjustment plate 4 within the airflow channel, causing the resistance adjustment plate 4 to rotate within the airflow channel. The resistance adjustment plate 4 rotates to different angles according to the user's dynamic breathing airflow. If no clicking sound is heard, it indicates that the breathing airflow is standard breathing, which is a standardized breathing training. Under standard breathing conditions, when the resistance adjustment plate 4 rotates dynamically within a 45-degree angle range... The horizontal segment 401 will contact the first resistance surface 701 on the resistance application ring 7. Since the center of the first resistance surface 701 is not concentric with the axis of the resistance adjustment plate 4, and the distance from the end of the first resistance surface 701 away from the resistance block 702 to the limit stop shaft 5 is less than the distance from the end of the first resistance surface 701 near the resistance block 702 to the limit stop shaft 5, the larger the rotation angle, the smaller the diameter of the airflow channel, which increases the airflow resistance. At the same time, the larger the rotation angle, the greater the required breathing airflow, which allows the larger breathing airflow to adapt to the greater airflow resistance, thus achieving better training. Meanwhile, the dynamic airflow resistance allows the user to obtain a more suitable airflow resistance for training based on the airflow resistance, thereby improving the training effect.

[0058] However, if a user exhibits improper breathing behavior, and the pushing and pulling force of the breathing air causes the resistance adjustment plate 4 to rotate beyond a 45-degree angle, a clicking sound will occur indicating that the pushing and pulling force of the breathing air is too great and the user needs to slow down their breathing. After slowing down their breathing, the gravity block 403 at the lower end of the vertical section 402 of the resistance adjustment plate 4 will rotate the resistance adjustment plate 4 back to its original position under its own weight. After resetting, the resistance adjustment plate 4 will return to the 45-degree rotation range, and the user can continue to perform standard breathing training.

[0059] If the user breathes in and out forcefully, the pushing and pulling force of the airflow will cause the resistance adjustment plate 4 to rotate past the resistance block, and cause the anti-rotation block 502 to adhere to and abut against the end of the semi-circular groove 602. That is, the horizontal section 401 of the resistance adjustment plate 4 is in a vertical state, blocking the airflow channel, causing the airflow resistance to rise sharply, and the breathing training is interrupted instantly. This prevents the user from damaging the respiratory muscles due to improper breathing and also serves as a warning.

[0060] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A breathing resistance dynamically adjustable lung function training device, comprising a breathing trainer (1), a breathing hose (2) disposed at one end of the breathing trainer (1), and a gear adjustment valve (3) disposed at the other end of the breathing trainer (1), characterized in that: The breathing trainer (1) has a resistance adjustment plate (4) installed in the airflow channel near the breathing hose (2). The resistance adjustment plate (4) is composed of a horizontal section (401) and a vertical section (402) and is arranged in a T-shape. A limit stop shaft (5) is provided at the junction of the horizontal section (401) and the vertical section (402). The inner wall of the airflow channel where the resistance adjustment plate (4) is located is provided with a stop groove (6) that matches the rotation of the limit stop shaft (5). Under the action of standard breathing airflow, the airflow channel diameter is changed by rotating the resistance adjustment plate (4) to achieve dynamic breathing resistance adjustment; When the resistance adjustment plate (4) is rotated to the vertical position, the airflow channel is closed, blocking the user's non-standard training; The outer ring of the resistance adjustment plate (4) is provided with a resistance application ring (7) that abuts against it, and the top of the resistance application ring (7) is provided with a tension spring (8) that is fixedly connected to the top of the airflow channel. The resistance application ring (7) is U-shaped, and the arc surface of the U-shape of the resistance application ring (7) is symmetrically provided with a first resistance surface (701), a resistance block (702) and a second resistance surface (703). The resistance block (702) is located between the first resistance surface (701) and the second resistance surface (703), and the first resistance surface (701) and the second resistance surface (703) are not concentric with the axis of the resistance adjustment plate (4).

2. The respiratory resistance dynamically adjustable pulmonary function training device according to claim 1, characterized in that: The limiting anti-rotation shaft (5) includes a rotating shaft (501) disposed at both ends of the resistance adjusting plate (4), and an anti-rotation block (502) disposed on the outer circumference of the rotating shaft (501) near one end of the resistance adjusting plate (4). The anti-rotation block (502) and the resistance adjustment plate (4) are oriented in the same direction.

3. The respiratory resistance dynamically adjustable pulmonary function training device according to claim 2, characterized in that: The anti-rotation groove (6) includes a rotation groove (601) that is matched to the rotation of the rotation shaft (501) and a semi-circular groove (602) that is matched to the rotation of the anti-rotation block (502).

4. The respiratory resistance dynamically adjustable pulmonary function training device according to claim 3, characterized in that: The lower end of the vertical section (402) of the resistance regulating plate (4) is provided with a gravity block (403), and under the action of the gravity block (403), the initial state of the resistance regulating plate (4) is that the vertical section (402) vertically blocks half of the airflow channel.

5. The respiratory resistance dynamically adjustable pulmonary function training device according to claim 4, characterized in that: The distance from the end of the first resistance surface (701) away from the resistance block (702) to the limiting anti-rotation shaft (5) is less than the distance from the end of the first resistance surface (701) near the resistance block (702) to the limiting anti-rotation shaft (5); The distance from the end of the second resistance surface (703) away from the resistance block (702) to the limit stop shaft (5) is greater than the distance from the end of the second resistance surface (703) near the resistance block (702) to the limit stop shaft (5).

6. The respiratory resistance dynamically adjustable pulmonary function training device according to claim 5, characterized in that: The resistance application ring (7) has an active distance from the bottom of the airflow channel, which is pushed downward by the resistance adjustment plate (4) when it rotates.

7. The respiratory resistance dynamically adjustable pulmonary function training device according to claim 6, characterized in that: Both ends of the horizontal section (401) of the resistance adjustment plate (4) are provided with abutment grooves (404), and the gravity block (403) at the lower end of the vertical section (402) of the resistance adjustment plate (4) is provided with a clearance groove (405) that matches the movement of the resistance application ring (7).

8. The respiratory resistance dynamically adjustable pulmonary function training device according to claim 7, characterized in that: The U-shaped ends of the resistance application ring (7) are movably provided with guide cylinders (9), and one end of the guide cylinder (9) is fixedly installed on the top of the inner wall of the airflow channel. The tension spring (8) is located inside the guide cylinder (9).

9. A respiratory resistance dynamically adjustable pulmonary function training device according to claim 8, characterized in that: The resistance block (702) is positioned at a 45-degree angle of rotation of the resistance adjustment plate (4), and the breathing airflow within a 45-degree angle of rotation of the resistance adjustment plate (4) is the standard breathing airflow for the current gear adjustment valve (3) setting gear. The airflow resistance generated by the airflow channel formed by the resistance regulating plate (4) rotating within 45 degrees is less than the resistance adjustment of the gear regulating valve (3) by one gear.

10. A respiratory resistance dynamically adjustable pulmonary function training device according to claim 9, characterized in that: The gravity of the gravity block (403) is greater than the rotational resistance when the resistance adjusting plate (4) and the resistance applying ring (7) come into contact; The power of the standard breathing airflow is greater than the rotational resistance when the resistance regulating plate (4) touches the first resistance surface (701), and the power of the standard breathing airflow is less than the rotational resistance when the resistance regulating plate (4) touches the resistance block (702).

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