Adjustable resistance breathing trainer

By setting elastic parts and anti-rotation cooperation in the resistance breathing trainer, synchronous adjustment of inhalation and exhalation resistance is achieved, which solves the problem that existing trainers cannot perform resistance training at the same time, adapts to the training needs of different groups of people, and improves structural stability and adjustment accuracy.

CN116726453BActive Publication Date: 2025-09-12NINGBO MFLAB MEDICAL INSTR

Patent Information

Application Number
CN202310667980.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-07
Publication Date
2025-09-12
Estimated Expiration
2043-06-07

AI Technical Summary

Technical Problem

Existing resistance breathing trainers cannot perform inhalation and exhalation resistance training at the same time, and have a small adjustment range, uncontrollable tolerance, limited adaptability to the population, and the adjustment structure is prone to jamming or wear of the sealing ring.

Method used

An adjustable resistance breathing trainer is designed. By setting an elastic member between the resistance movable upper cover and the lower cover, combined with the synchronous movement of the inhalation and exhalation resistance adjusting members, the synchronous adjustment of the exhalation and inhalation resistance is achieved. The anti-rotation fit and sealing structure are adopted to ensure a large adjustment range and controllable tolerance.

Benefits of technology

It realizes the synchronous adjustment of inhalation and exhalation resistance to meet the training needs of different groups of people. It has a compact structure, avoids jamming and wear of the sealing ring, and has a large adjustment range and controllable tolerance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116726453B_ABST
    Figure CN116726453B_ABST
Patent Text Reader

Abstract

The present invention discloses an adjustable resistance breathing trainer, comprising a housing, the top of which is provided with a first air inlet and outlet; a resistance movable upper cover, which is provided at the upper inner portion of the housing and can be raised and lowered along the housing; an exhaust port is provided on the side wall of the housing at a position corresponding to the exhaust chamber; a top seal is movably provided on the top of the resistance movable upper cover; a resistance movable lower cover is movably provided on the lower side of the resistance movable upper cover; an elastic member is provided between the resistance movable upper cover and the resistance movable lower cover; an inhalation resistance adjusting member is connected to the resistance movable lower cover via an external thread; the upper end of the resistance connecting member is connected to the top seal, and the lower end extends into the inhalation resistance adjusting member; an adjustable bottom cover is provided at the lower end of the housing; and an exhalation resistance adjusting member, the outer side of which is provided with an external thread and is engaged with the outer shell thread via the external thread. The present invention has a wide range of resistance coefficient adjustment levels and a controllable tolerance range, and is suitable for all training needs of different groups of people.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the field of breathing trainers, in particular to an adjustable resistance breathing trainer. Background Art

[0002] Resistance breathing involves using a resistance respirator to adjust the inhalation and exhalation resistance to varying levels. Continuous breathing at a normal respiratory rate is performed on the resistance respirator to strengthen and increase the strength and endurance of the respiratory muscles. The primary goal of respiratory muscle training is to enhance their strength and endurance. Non-specific respiratory muscle training can be achieved through exercises such as walking, jogging, swimming, and climbing stairs. Specific respiratory muscle training can be achieved by increasing the respiratory load.

[0003] At present, there are products for resistance breathing training at home and abroad with relatively accurate grades corresponding to resistance coefficients. The advantage is that the resistance coefficient grade adjustment range is large and the tolerance range is controllable. Its core value is that it is suitable for all training needs of different groups of people. However, its disadvantage is that it can only be used for inhalation resistance training alone or exhalation resistance training alone. It is impossible to perform inhalation resistance training and exhalation resistance training at the same time with one product. In addition, the adjustment knob may get stuck or wear the sealing ring during movement because it is connected to the top sealing ring.

[0004] In addition, there are breathing trainers on the market that can perform both inhalation resistance training and exhalation resistance training at the same time. However, this type of breathing trainer is a simplified version, with a small adjustment range of the resistance coefficient level, an uncontrollable tolerance range, and is suitable for a small group of people. Summary of the Invention

[0005] The present invention provides an adjustable resistance breathing trainer, which takes into account the characteristics of simultaneous inhalation resistance training and exhalation resistance training, has a large resistance coefficient level adjustment range and a controllable tolerance range, and is suitable for all training needs of different groups of people.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable resistance breathing trainer, comprising a shell, wherein the top of the shell is provided with a first air inlet and outlet; a resistance movable upper cover, which is arranged on the upper inner side of the shell and can be raised and lowered along the shell, an exhaust chamber is formed between the outer side of the resistance movable upper cover and the shell, an exhaust port is provided on the side wall of the shell at a position corresponding to the exhaust chamber, an air inlet is provided on the top of the resistance movable upper cover, a top sealing member is movably provided at the air inlet, the top of the resistance movable upper cover is in sealing contact with the shell, and the exhaust chamber is communicated with the first air inlet and outlet when the resistance movable upper cover moves; a resistance movable lower cover, which is movably arranged on the lower side of the resistance movable upper cover and is anti-rotationally matched with the resistance movable upper cover; an elastic member is provided between the resistance movable upper cover and the resistance movable lower cover; an air inlet The air resistance adjusting part is provided with an external thread on the outside and is hollow inside. The inhalation resistance adjusting part is located on the inner side of the resistance movable lower cover and is connected with the resistance movable lower cover through the external thread; the resistance connecting part is provided inside the resistance movable upper cover, the upper end of which is connected with the top sealing part, and the lower end extends into the inhalation resistance adjusting part and cooperates with the limiting step on the top of the inhalation resistance adjusting part; the adjusting bottom cover is provided at the lower end of the outer shell and can be coaxially rotated around the outer shell, and the bottom of the adjusting bottom cover is provided with a second air inlet and outlet; the exhalation resistance adjusting part is provided inside the adjusting bottom cover, the outer side of which is provided with an external thread and cooperates with the outer shell thread through the external thread, the interior of the exhalation resistance adjusting part is coaxially provided with an adjusting synchronizer, and the adjusting synchronizer, the exhalation resistance adjusting part, the adjusting bottom cover and the inhalation resistance adjusting part are all anti-rotation cooperated.

[0007] Preferably, the bottom of the adjustment bottom cover is provided with a grid hollow portion corresponding to the second air inlet and outlet, and a circle of limit retaining walls is provided around the grid hollow portion. The bottom of the adjustment synchronizer is located on the inner side of the limit retaining wall, and a plurality of anti-rotation plug-ins are provided around the circumference on the outer side wall of the adjustment synchronizer. The anti-rotation plug-ins are radially embedded in the limit retaining wall. At the same time, the inner side walls of the exhalation resistance adjustment member and the inhalation resistance adjustment member are respectively provided with a first anti-rotation groove and a second anti-rotation groove embedded with the anti-rotation plug-ins.

[0008] Preferably, a first sealing ring is provided between the outer side of the top seal and the movable upper cover of the resistance, a sealing step is provided on the inner side wall of the outer shell above the exhaust port, and a second sealing ring is provided on the outer side of the top of the movable upper cover of the resistance to cooperate with the sealing step.

[0009] Preferably, an exhalation guide step is provided on the outer side of the movable resistance cover below the exhaust port and is in close contact with the inner side wall of the shell.

[0010] Preferably, a plurality of limiting protrusions are circumferentially provided on the inner side of the upper end of the adjustment bottom cover, and a circle of limiting sliding grooves that cooperate with the limiting protrusions are provided on the inner side wall of the lower end of the shell.

[0011] Preferably, the outer side of the adjustable bottom cover is provided with an anti-slip cover.

[0012] Preferably, the housing comprises an upper shell and a lower shell, and the upper shell and the lower shell are detachably matched in the upper and lower parts.

[0013] Preferably, the lower shell is at least partially made of a light-transmitting material, and scale lines are marked on the side walls of the lower shell.

[0014] Preferably, filter cotton is installed at the second air inlet and outlet.

[0015] Preferably, a hollow top cover is installed at the first air inlet and outlet, and a breathing mouthpiece is detachably provided on the top of the shell.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The structure is compact, and an elastic member is provided between the resistance movable upper cover and the resistance movable lower cover to achieve the lifting and lowering of the resistance movable upper cover with resistance during exhalation, thereby realizing exhalation resistance training. At the same time, during inhalation, the elastic member is compressed by arranging the synchronous movement of the top sealing member, the resistance connecting member and the inhalation resistance adjusting member, thereby realizing inhalation resistance training, taking into account both exhalation and inhalation training. In addition, by arranging the cooperation of the exhalation resistance adjusting member and the adjustment synchronization member, it is possible to achieve the synchronous lifting and lowering of the resistance movable lower cover and the exhalation resistance adjusting member, thereby synchronously adjusting the resistance of inhalation and exhalation, with a large adjustment range and a controllable tolerance range, suitable for all training needs of different groups of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the appearance of the present invention;

[0019] Figure 2 It is a main cross-sectional structural diagram of the present invention;

[0020] Figure 3 for Figure 2 A magnified structural diagram of point A;

[0021] Figure 4 It is a top view cross-sectional structural diagram of the present invention;

[0022] Figure 5 A three-dimensional structural diagram of the adjusting synchronizer of the present invention;

[0023] Figure 6 is a three-dimensional structural diagram of the exhalation resistance adjusting member of the present invention;

[0024] Figure 7 A three-dimensional structural diagram of an inhalation resistance adjusting member of the present invention;

[0025] Figure 8 This is a three-dimensional structural diagram of the adjustable bottom cover of the present invention;

[0026] Figure 9 A three-dimensional structural diagram of the resistance movable upper cover of the present invention;

[0027] Figure 10 It is a three-dimensional structural diagram of the resistance movable lower cover of the present invention;

[0028] Figure 11 It is a schematic diagram of the structure of the decomposed state of the present invention;

[0029] Figure 12 This is a schematic diagram of the inhalation resistance training of the present invention;

[0030] Figure 13 Schematic diagram of the exhalation resistance training of the present invention.

[0031] Reference numerals:

[0032] 1. First air inlet and outlet, 11. Adjusting synchronization part, 12. Inhalation resistance adjusting part, 13. Resistance movable lower cover, 14. Elastic part, 15. Second sealing ring, 16. First sealing ring, 17. Grid hollow part, 18. Third anti-rotation groove, 19. Resistance movable upper cover, 2. Upper shell, 21. Exhaust port, 22. Anti-rotation plug plate, 23. First anti-rotation groove, 24. Second anti-rotation groove, 25. Anti-rotation rib, 26. Exhalation guide step, 27. Fourth anti-rotation groove, 28. Breathing mouthpiece, 29. Resistance connecting part, 3. Lower shell, 31. Sealing step, 32. Scale line, 4. Anti-slip sleeve, 5. Top cover, 6. Top seal, 7. Adjustable bottom cover, 71. Limiting wall, 72. Limiting convex point, 8. Exhalation resistance adjusting part, 9. Second air inlet and outlet, 10. Filter cotton. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0034] The present invention aims to solve the problems in existing respiratory trainers, such as small adjustment range of the resistance coefficient level of the adjustment structure, uncontrollable tolerance range, small number of people who can adapt to it, and jamming or wear on the sealing ring during adjustment. The following technical solutions are provided: Figure 1-13As shown, an adjustable resistance breathing trainer includes a housing, a first air inlet and outlet 1 is provided on the top of the housing, a hollow top cover 5 is installed at the first air inlet and outlet 1, and a breathing mouthpiece 28 is detachably provided on the top of the housing. The top cover 5 can prevent external foreign matter from entering and can also limit the upper top of the top seal 6;

[0035] In order to achieve exhalation resistance training, this embodiment includes a resistance movable upper cover 19, which is arranged on the upper inner side of the shell and can be raised and lowered along the shell. An exhaust cavity is formed between the outer side of the resistance movable upper cover 19 and the shell. An exhaust port 21 is provided on the side wall of the shell at a position corresponding to the exhaust cavity. When inhalation is inhaled from the first air inlet and outlet 1, the resistance movable upper cover 19 can be pushed downward. When the resistance movable upper cover 19 moves downward, the exhaust cavity is connected to the first air inlet and outlet 1, so that the inhaled air flow can be discharged from the exhaust port 21. The shape and number of the exhaust port 21 can be set as needed.

[0036] In order to achieve inhalation resistance training, the top of the resistance movable upper cover 19 is provided with an inhalation port, and a top seal 6 is movably provided at the inhalation port. The top of the resistance movable upper cover 19 is in sealing contact with the housing;

[0037] The invention also includes a resistance movable lower cover 13, which is movably arranged on the lower side of the resistance movable upper cover 19 and is anti-rotationally matched with the resistance movable upper cover 19 and can only move axially. In order to generate resistance for inhalation resistance training and exhalation resistance training, an elastic member 14 is also included, which is arranged between the resistance movable upper cover 19 and the resistance movable lower cover 13. The elastic member 14 here can be a spring, and the distance between the resistance movable upper cover 19 and the resistance movable lower cover 13 can be controlled to adjust the compression amount of the spring, thereby adjusting the resistance; specifically, the present embodiment includes an inhalation resistance adjusting member 12, the outer side of which is provided with an external thread and the inside is hollow, and the inhalation resistance adjusting member 12 is located on the inner side of the resistance movable lower cover 13 and is connected to the resistance movable lower cover 13 through the external thread. 3 is matched and connected. Since the resistance movable lower cover 13 and the resistance movable upper cover 19 are anti-rotation matched, the rotation of the resistance movable lower cover 13 can be achieved by rotating the suction resistance adjusting member 12. At the same time, in order to enable the top sealing member 6 to push up and utilize the elasticity of the elastic member 14 to generate resistance, this embodiment also includes a resistance connecting member 29, which is arranged inside the resistance movable upper cover 19, with its upper end connected to the top sealing member 6, and its lower end extending into the suction resistance adjusting member 12 and cooperating with the limiting step on the top of the suction resistance adjusting member 12. In this way, when the top sealing member 6 is pushed up due to suction, the suction resistance adjusting member 12 and the resistance movable lower cover 13 can be pulled up together by the resistance connecting member 29, thereby compressing the elastic member 14 and generating resistance.

[0038] To adjust the resistance for both inhalation and exhalation resistance training, in this embodiment, an adjustable bottom cover 7 can be installed. This is located at the lower end of the housing and can rotate coaxially around the housing. A second air inlet and outlet 9 is provided at the bottom of the adjustable bottom cover 7. During inhalation, air entering through the second air inlet and outlet 9 can flow along the resistance connector 29 to the top of the resistance movable upper cover 19 and be discharged from the first air inlet and outlet 1. A filter 10 can be installed at the second air inlet and outlet 9 to prevent foreign matter from entering. Furthermore, to synchronously adjust the exhalation resistance training, an exhalation resistance adjustment member 8 is also included. This member is located within the adjustable bottom cover 7 and has external threads on its exterior that mate with the outer housing threads. When the exhalation resistance adjustment member 8 rotates, it can move upward or downward, thereby adjusting the lower limit position of the resistance movable lower cover 13. The elastic member 14 is compressed only when the resistance movable lower cover 13 contacts the resistance movable upper cover 13, thereby limiting the amount of compression of the elastic member 14.

[0039] In order to achieve synchronous rotation of the adjustment bottom cover 7 to drive the exhalation resistance adjustment member 8 and the inhalation resistance adjustment member 12 to achieve synchronous adjustment, an adjustment synchronization member 11 is coaxially arranged inside the exhalation resistance adjustment member 8, and the adjustment synchronization member 11 is anti-rotationally matched with the exhalation resistance adjustment member 8, the adjustment bottom cover 7 and the inhalation resistance adjustment member 12.

[0040] As a specific structure for adjusting the bottom cover 7, Figure 4-8 As shown, the bottom of the adjustment bottom cover 7 is provided with a grid hollow portion 17 corresponding to the second air inlet and outlet 9, and a circle of limit retaining walls 71 is provided around the grid hollow portion 17. The bottom of the adjustment synchronizer 11 is located on the inner side of the limit retaining wall 71, and a plurality of anti-rotation plug-ins 22 are provided around the circumference on the outer wall of the adjustment synchronizer 11. The anti-rotation plug-ins 22 are radially embedded in the limit retaining wall 71. At the same time, the inner walls of the exhalation resistance adjustment member 8 and the inhalation resistance adjustment member 12 are respectively provided with a first anti-rotation groove 23 and a second anti-rotation groove 24 embedded with the anti-rotation plug-in plate 22. The simultaneous connection of the anti-rotation plug-in plate 22 with the limit retaining wall 71, the first anti-rotation groove 23 and the second anti-rotation groove 24 realizes that the adjustment bottom cover 7 can adjust the inhalation resistance and the exhalation resistance at the same time.

[0041] like Figure 9-10 As shown, a third anti-rotation groove 18 is provided around the circumference of the outer side of the upper end of the resistance movable lower cover 13, and an anti-rotation rib 25 corresponding to the third anti-rotation groove 18 is provided on the inner side wall of the corresponding resistance movable upper cover 19, thereby ensuring the anti-rotation cooperation between the resistance movable lower cover 13 and the resistance movable upper cover 19.

[0042] In order to ensure sealing, a first sealing ring 16 is provided between the outer side of the top seal 6 and the resistance movable upper cover 19, a sealing step 31 is provided on the inner side wall of the outer shell above the exhaust port 21, and a second sealing ring 15 is provided on the top outer side of the resistance movable upper cover 19 to cooperate with the sealing step 31.

[0043] As a specific structure of the resistance movable cover 19, Figure 9 As shown, the outer side of the resistance movable upper cover 19 is located below the exhaust port 21 and is provided with an exhalation guide step 26 that is in close contact with the inner wall of the shell. The exhalation guide step 26 can prevent the incoming airflow from moving to the lower part of the shell. The upper part thereof can be provided with an inclined surface to smoothly discharge the airflow from the exhaust port 21. A plurality of fourth anti-rotation grooves 27 can be provided on the exhalation guide step 26 along its axial direction, which can be engaged with the ribs on the inner wall of the shell, thereby realizing the anti-rotation installation of the resistance movable upper cover 19.

[0044] To prevent the adjustable bottom cover 7 from detaching from the housing during rotation, a plurality of limiting protrusions 72 are circumferentially arranged on the inner side of the upper end of the adjustable bottom cover 7. A circle of limiting grooves that cooperate with the limiting protrusions 72 are arranged on the inner side wall of the lower end of the housing. The cooperation between the limiting protrusions 72 and the limiting grooves can effectively limit the position of the adjustable bottom cover 7. At the same time, an anti-slip sleeve 4 can be provided on the outer side of the adjustable bottom cover 7 to improve the rotation adjustment accuracy of the adjustable bottom cover 7.

[0045] In this embodiment, if Figure 1-2 As shown, the shell includes an upper shell 2 and a lower shell 3, and the upper shell 2 and the lower shell 3 are detachably matched with each other, wherein the lower shell 3 is at least partially made of a light-transmitting material, and a scale line 32 is marked on the side wall of the lower shell 3. The moving position of the exhalation resistance adjustment member 8 inside it can be seen through the transparent lower shell 3. When the upper end of the exhalation resistance adjustment member 8 moves to the position corresponding to the scale line 32, a different resistance value corresponds.

[0046] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0047] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being described. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0048] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0049] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. An adjustable resistance breathing trainer, characterized in that: include: A housing, wherein a first air inlet and outlet (1) is provided on the top of the housing; A resistance movable upper cover (19) is arranged at the upper inner portion of the shell and can be raised and lowered along the shell, an exhaust cavity is formed between the outer side of the resistance movable upper cover (19) and the shell, an exhaust port (21) is provided on the side wall of the shell at a position corresponding to the exhaust cavity, an air intake port is provided at the top of the resistance movable upper cover (19), a top sealing member (6) is movably provided at the air intake port, the top of the resistance movable upper cover (19) is in sealing contact with the shell, and the exhaust cavity is connected to the first air inlet and outlet (1) when the resistance movable upper cover (19) moves; A resistance movable lower cover (13) is movably arranged on the lower side of the resistance movable upper cover (19) and is anti-rotationally matched with the resistance movable upper cover (19); An elastic member (14) is arranged between the resistance movable upper cover (19) and the resistance movable lower cover (13); An inhalation resistance adjusting member (12) is provided with an external thread on its outer side and is hollow inside. The inhalation resistance adjusting member (12) is located inside the resistance movable lower cover (13) and is connected to the resistance movable lower cover (13) through the external thread. a resistance connecting member (29) disposed inside the resistance movable upper cover (19), with its upper end connected to the top sealing member (6) and its lower end extending into the inhalation resistance adjusting member (12) and cooperating with a limiting step at the top of the inhalation resistance adjusting member (12); An adjustable bottom cover (7) is provided at the lower end of the housing and can rotate coaxially around the housing, and a second air inlet and outlet (9) is provided at the bottom of the adjustable bottom cover (7); An exhalation resistance adjusting member (8) is arranged inside the adjusting bottom cover (7), and an external thread is provided on the outer side thereof and is matched with the outer shell thread through the external thread. An adjusting synchronous member (11) is coaxially provided inside the exhalation resistance adjusting member (8), and the adjusting synchronous member (11) is anti-rotationally matched with the exhalation resistance adjusting member (8), the adjusting bottom cover (7), and the inhalation resistance adjusting member (12).

2. The adjustable resistance breathing trainer according to claim 1, characterized in that: The bottom of the adjustment bottom cover (7) is provided with a grid hollow portion (17) corresponding to the second air inlet and outlet (9), and a circle of limit retaining walls (71) are provided around the grid hollow portion (17). The bottom of the adjustment synchronization member (11) is located on the inner side of the limit retaining wall (71), and a plurality of anti-rotation plug-ins (22) are provided around the circumference on the outer wall of the adjustment synchronization member (11). The anti-rotation plug-ins (22) are radially embedded in the limit retaining wall (71), and at the same time, the inner walls of the exhalation resistance adjustment member (8) and the inhalation resistance adjustment member (12) are respectively provided with a first anti-rotation groove (23) and a second anti-rotation groove (24) embedded with the anti-rotation plug-ins (22).

3. The adjustable resistance respiratory trainer according to claim 1, characterized in that: A first sealing ring (16) is provided between the outer side of the top seal (6) and the movable resistance cover (19), a sealing step (31) is provided on the inner side wall of the shell above the exhaust port (21), and a second sealing ring (15) is provided on the outer side of the top of the movable resistance cover (19) to cooperate with the sealing step (31).

4. The adjustable resistance respiratory trainer according to claim 3, characterized in that: An exhalation guide step (26) is provided on the outer side of the resistance movable upper cover (19) below the exhaust port (21) and is in close contact with the inner side wall of the shell.

5. The adjustable resistance respiratory trainer according to claim 1, characterized in that: The upper inner side of the regulating bottom cover (7) is circumferentially provided with a plurality of limiting protrusions (72), and the lower inner side wall of the shell is provided with a circle of limiting sliding grooves that cooperate with the limiting protrusions (72).

6. The adjustable resistance respiratory trainer according to claim 1, characterized in that: The outer side of the adjustable bottom cover (7) is provided with an anti-slip cover (4).

7. The adjustable resistance respiratory trainer according to claim 1, characterized in that: The housing comprises an upper shell (2) and a lower shell (3), and the upper shell (2) and the lower shell (3) are detachably matched in the upper and lower parts.

8. The adjustable resistance respiratory trainer according to claim 7, characterized in that: The lower shell (3) is at least partially made of a light-transmitting material, and a scale line (32) is marked on the side wall of the lower shell (3).

9. The adjustable resistance respiratory trainer according to claim 1, characterized in that: Filter cotton (10) is installed at the second air inlet and outlet (9).

10. The adjustable resistance respiratory trainer according to claim 1, characterized in that: A hollow top cover (5) is installed at the first air inlet and outlet (1), and a removable breathing mouthpiece (28) is provided on the top of the shell.

Citation Information

Patent Citations

  • Structure for respiratory training

    CN215461855U

  • Expiring training device featuring adjustable resistance

    TWM314611U

Cited By

  • Progressive respiratory training device

    CN121731728A