Resistance breathing exerciser

Abstract

The application discloses a resistance breathing training device, which comprises a shell, a light-transmitting cover arranged at the lower end of the shell, an inner shell body, a first air inlet and outlet arranged at the top of the inner shell body, an exhale movable seat arranged on the inner side of the upper part of the inner shell body, an exhaust port arranged on the sidewall of the upper part of the inner shell body, a first inhale port arranged at the top of the exhale movable seat, a one-way sealing piece arranged at the upper end of the first inhale port, a second inhale port arranged at the bottom of the exhale movable seat and blocked by a blocking block, a resistance adjusting piece arranged on the inner lower part of the inner shell body, a movable sleeve threadedly connected to the upper part of the resistance adjusting piece, an adjusting sleeve with a second air inlet and outlet sleeved on the lower part of the resistance adjusting piece, a connecting rod with the upper end connected to the blocking block and the lower end abutting against the top of the resistance adjusting piece, and an elastic piece arranged between the exhale movable seat and the movable sleeve in the axial direction. The resistance breathing training device can realize the inhale resistance training and the exhale resistance training simultaneously and solve the problems in the prior art.

Description

Technical Field

[0001] This invention relates to the field of respiratory training medical device technology, specifically a resistance breathing trainer. Background Technology

[0002] Resistance breathing involves using a resistance respirator to adjust the inspiratory or expiratory resistance at different levels, allowing for continuous breathing at a normal respiratory rate, thereby training the strength and endurance of the respiratory muscles. The main purpose of respiratory muscle training is to enhance the strength and endurance of the respiratory muscles. Non-specific respiratory muscle training can be achieved through exercises such as walking, jogging, swimming, and climbing stairs, while specific respiratory muscle training can be achieved by increasing the respiratory load.

[0003] Currently, both domestic and international resistance breathing training products offer relatively accurate levels corresponding to resistance coefficients. Their advantages include a wide range of adjustable resistance coefficient levels and controllable tolerances, making them suitable for the training needs of various groups. However, their disadvantages include the inability to perform both inspiratory and expiratory resistance training simultaneously. Furthermore, existing resistance breathing training products have complex components, prone to jamming or jamming, lack precise adjustment of inspiratory or expiratory resistance, and offer insufficient visualization of resistance adjustments, making them inconvenient to use. Summary of the Invention

[0004] This invention provides a resistance breathing trainer with a simple structure that can simultaneously perform inspiratory resistance training and expiratory resistance training, thus solving the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a resistance breathing trainer, comprising: a shell, wherein a breathing nozzle is installed at the upper end of the shell, and a light-transmitting cover is provided at the lower end of the shell; an inner shell, wherein a first air inlet / outlet is provided at the top of the inner shell; an exhalation seat, disposed on the upper inner side of the inner shell and axially sliding along the inner shell, wherein an exhaust port is provided on the upper side wall of the inner shell, and an exhaust channel corresponding to the exhaust port is provided on the shell; a first inhalation port is provided at the top of the exhalation seat, wherein a one-way seal is installed at the upper end of the first inhalation port; a second inhalation port is provided at the bottom of the exhalation seat, wherein a sealing block is movably disposed on the upper part of the second inhalation port; resistance An adjusting component is located on the lower inner side of the inner shell. The interior of the resistance adjusting component is hollow, and its upper outer side is provided with a threaded portion. An adjusting sleeve is fitted on the lower outer side of the resistance adjusting component. The adjusting sleeve and the resistance adjusting component have an axially movable anti-rotation fit. The bottom of the adjusting sleeve is provided with a second air inlet / outlet that communicates with the interior of the resistance adjusting component. A connecting rod is connected at its upper end to the sealing block. The lower end of the connecting rod extends into the interior of the resistance adjusting component and abuts against the top of the resistance adjusting component. A movable sleeve is located on the upper outer side of the resistance adjusting component and has a threaded fit with the outer side of the resistance adjusting component. The movable sleeve and the side wall of the inner shell have an anti-rotation fit. An elastic element is axially disposed between the exhalation movable seat and the movable sleeve.

[0006] Preferably, the lower part of the inner shell has a perforated window corresponding to the position of the light-transmitting outer cover, and the lower outer side of the movable sleeve has a marking structure exposed in the perforated window.

[0007] Furthermore, the lower end of the movable sleeve is provided with a radially inwardly extending stepped portion, and the radially inner side of the stepped portion is provided with a thread that engages with the resistance adjustment component. The lower end of the elastic component abuts against the upper end of the stepped portion.

[0008] Furthermore, a first sealing ring is provided on the outer side of the exhalation seat and the outer side of the sealing block, and a second sealing ring is provided on the upper end surface of the inner shell, the second sealing ring being in contact with the outer shell.

[0009] Furthermore, the exhalation seat is composed of an upper movable seat and a lower movable seat that are matched vertically, with the first inhalation port located on the upper movable seat and the second inhalation port located on the lower movable seat.

[0010] Furthermore, the top of the inner shell is provided with a top cover, the first air inlet and outlet are provided on the top cover, and the exhaust port is formed by the top cover and the inner shell being snapped together.

[0011] Furthermore, the lower part of the resistance adjusting component is a sliding sleeve that matches the adjusting sleeve. Several first vertical anti-rotation strips are arranged around the circumference on the outer side wall of the sliding sleeve. A second vertical anti-rotation strip that matches the vertical anti-rotation strip is arranged on the inner side wall of the adjusting sleeve. A limiting step is provided between the sliding sleeve and the threaded part. The lower inner side of the inner shell abuts against the lower end of the limiting step.

[0012] Furthermore, the upper part of the outer wall of the adjusting sleeve is provided with a snap-fit ​​groove, and the light-transmitting outer cover is provided with an inward folded edge, which snaps into the snap-fit ​​groove.

[0013] Furthermore, the outer side of the adjustment sleeve is fitted with an anti-slip protective sleeve.

[0014] Furthermore, the connecting rod includes a main rod with a cross-shaped cross section and a bottom ring installed at the lower end of the main rod. The bottom ring extends into the resistance adjusting component and abuts against the folded step at the upper end of the resistance adjusting component. A snap-fit ​​seat is installed at the upper end of the main rod, and multiple L-shaped guide snap-fit ​​seats are provided at the lower end of the sealing block. The multiple L-shaped guide snap-fit ​​seats form a snap-fit ​​space that matches the snap-fit ​​seat. The snap-fit ​​seat is inserted laterally into the snap-fit ​​space.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] With its compact structure and small overall size, it simultaneously supports both inhalation and exhalation resistance training. It has relatively few internal parts and features a movable sleeve and resistance adjustment mechanism. By rotating the resistance adjustment mechanism, the movable sleeve can be moved up and down, thereby adjusting the compression force of the elastic element. The adjustment structure is relatively simple and reliable, resulting in a wide range of resistance coefficient adjustments with controllable tolerances, suitable for all training needs of different groups. Moreover, the movement of the movable sleeve can be seen from the outside through the light-transmitting outer cover, allowing for precise indication of the resistance value. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a front sectional view of the present invention;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This is a three-dimensional structural diagram of the inner shell of the present invention;

[0021] Figure 5 This is a three-dimensional structural diagram of the exploded state of the present invention;

[0022] Figure 6This is a three-dimensional structural diagram of the connecting rod of the present invention;

[0023] Figure 7 This is a three-dimensional structural diagram of the exhalation seat of the present invention;

[0024] Figure 8 This is a three-dimensional structural diagram of the resistance adjustment component of the present invention;

[0025] Figure 9 This is a three-dimensional structural diagram of the movable sleeve of the present invention;

[0026] Figure 10 This is a schematic diagram illustrating the expiratory resistance training principle of the present invention;

[0027] Figure 11 This is a schematic diagram illustrating the inhalation resistance training principle of the present invention.

[0028] Figure label:

[0029] 1. Outer shell; 11. Top cover; 12. Second air inlet / outlet; 13. Connecting rod; 131. Main rod; 132. Bottom ring; 133. Plug seat; 14. Lower movable seat; 15. Sealing block; 152. L-shaped guide seat; 16. Exhalation movable seat; 17. First sealing ring; 18. One-way seal; 19. Second sealing ring; 2. Light-transmitting outer cover; 21. Exhaust port; 22. First air inlet / outlet; 23. First inhalation port; 24. Second inhalation port; 25. Upper movable seat; 26. Limiting post; 3. Breathing nozzle; 4. Anti-slip sleeve; 5. Exhaust channel; 6. Inner shell; 61. Hollow window; 7. Elastic element; 8. Resistance adjustment element; 81. Threaded part; 82. Limiting step; 83. First vertical anti-rotation strip; 84. Sliding sleeve; 9. Movable sleeve; 91. Marking structure; 10. Adjusting sleeve. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] This invention addresses the problem that existing breathing trainers cannot simultaneously provide inspiratory resistance training and expiratory resistance training. For example... Figure 1-11As shown, the following technical solution is provided: a resistance breathing trainer, comprising: a shell 1, with a breathing nozzle 3 installed at the upper end of the shell 1 and a light-transmitting cover 2 at the lower end of the shell 1; an inner shell 6, with a first air inlet / outlet 22 at the top of the inner shell 6; an exhalation seat 16, disposed on the upper inner side of the inner shell 6 and axially sliding along the inner shell 6, with an exhaust port 21 on the upper side wall of the inner shell 6, and an exhaust channel 5 on the shell 1 corresponding to the exhaust port 21; a first inhalation port 23 at the top of the exhalation seat 16, with a one-way seal 18 installed at the upper end of the first inhalation port 23; a second inhalation port 24 at the bottom of the exhalation seat 16, with a sealing block 15 movably disposed on the upper part of the second inhalation port 24; and resistance adjustment. Component 8 is located on the lower inner side of the inner shell 6. The interior of the resistance adjusting component 8 is hollow, and a threaded portion 81 is provided on its upper outer side. An adjusting sleeve 10 is fitted on the lower outer side of the resistance adjusting component 8. The adjusting sleeve 10 and the resistance adjusting component 8 are in an axially movable anti-rotation fit. The bottom of the adjusting sleeve 10 is provided with a second air inlet / outlet port 12 that communicates with the interior of the resistance adjusting component 8. A connecting rod 13 is connected at its upper end to the sealing block 15. The lower end of the connecting rod 13 extends into the interior of the resistance adjusting component 8 and abuts against the top of the resistance adjusting component 8. A movable sleeve 9 is located on the upper outer side of the resistance adjusting component 8 and is threaded to the outer side of the resistance adjusting component 8. The movable sleeve 9 is in an anti-rotation fit with the side wall of the inner shell 6. An elastic component 7 is axially located between the exhalation movable seat 16 and the movable sleeve 9.

[0032] Specifically, the breathing nozzle 3 is a detachable structure, which is convenient for replacement and cleaning. When using it, the user can hold the breathing nozzle 3 in their mouth and exhale or inhale into the outer shell 1. In order to better see the movement of the movable sleeve 9 and accurately indicate the specific value of the resistance, the lower part of the inner shell 6 has a hollow window 61 corresponding to the position of the light-transmitting outer cover 2. The lower outer side of the movable sleeve 9 is provided with a marking structure 91 exposed in the hollow window 61. Moreover, a scale can be printed on the outer surface of the light-transmitting outer cover 2. The marking structure 91 can be set as a horizontal convex strip that can match the scale for easy indication.

[0033] The horizontal convex strip, serving as a marking structure 91, can be embedded in the hollow window 61, thus achieving an anti-rotation fit between the movable sleeve 9 and the side wall of the inner shell 6.

[0034] The blocking block 15 is disc-shaped and can block the second air inlet 24. A limiting post 26 is set in the center of its upper end. The distance between the limiting post 26 and the first air inlet 23 is the travel distance of the blocking block 15. Therefore, during inhalation training, the blocking block 15 only needs to move up a relatively short distance. In this way, the blocking block 15 will not float up and down during continuous inhalation and will remain in the upper position.

[0035] For easy installation, an inner buckle is provided on the inner side of the upper end of the light-transmitting outer cover 2. The inner buckle is engaged with the buckle groove on the side wall of the inner housing 6. This enables the light-transmitting outer cover 2 to be installed quickly. Moreover, the relative position between the light-transmitting outer cover 2 and the inner housing 6 can be positioned to ensure the accuracy of the resistance adjustment display.

[0036] In some embodiments, the lower end of the movable sleeve 6 is provided with a radially inwardly extending step portion, and the radially inner side of the step portion is provided with a thread that engages with the resistance adjusting member 8. The lower end of the elastic member 7 abuts against the upper end of the step portion. In this embodiment, the elastic member 7 can be a spring, so that the lower part of the spring is located in the annular space formed between the movable sleeve 6 and the resistance adjusting member 8, which can position and guide the spring and prevent it from deflecting.

[0037] In some embodiments, a first sealing ring 17 is provided on the outer side of the exhalation seat 16 and the outer side of the sealing block 15, and a second sealing ring 19 is provided on the upper end surface of the inner shell 6. The second sealing ring 19 is in contact with the outer shell 1. The first sealing ring 17 can realize the rapid sealing and closing of the first air inlet / outlet 22 and the second air inlet 24. The second sealing ring 19 can prevent leakage from the gap between the outer shell 1 and the inner shell 6 during exhalation and inhalation, which would cause resistance failure.

[0038] In some embodiments, as a specific structure of the exhalation seat 16, such as Figure 2-3 As shown, the exhalation seat 16 is composed of an upper movable seat 25 and a lower movable seat 14 that are matched vertically. The first inhalation port 23 is located on the upper movable seat 25, and the second inhalation port 24 is located on the lower movable seat 14. The structure of assembling the upper movable seat 25 and the lower movable seat 14 is conducive to the installation of the sealing block 15, and the assembly and installation of the entire exhalation seat 16 are smoother.

[0039] In some embodiments, as a specific structure of the inner shell 6, such as Figure 4 , 10As shown in Figure -11, the top of the inner housing 6 is provided with a top cover 11, the first air inlet / outlet 22 is provided on the top cover 11, and the exhaust port 21 is formed by the snap-fit ​​connection between the top cover 11 and the inner housing 6. Before assembly, the top of the inner housing 6 is an open structure, and the internal structure of the inner housing 6 can be installed smoothly. The edge of the top cover 11 is snapped with the protruding buckle plate on the inner housing 6, and the exhaust port 21 is formed between adjacent protruding buckle plates.

[0040] As a specific structure of the resistance adjustment element 8 in this embodiment, such as Figure 8 As shown, the lower part of the resistance adjusting member 8 is a sliding sleeve 84 that matches the adjusting sleeve 10. Several first vertical anti-rotation strips 83 are arranged around the outer side wall of the sliding sleeve 84. A second vertical anti-rotation strip that matches the vertical anti-rotation strip 83 is arranged on the inner side wall of the adjusting sleeve 10. A limiting step 82 is provided between the sliding sleeve 84 and the threaded part 81. The lower inner side of the inner shell 6 abuts against the lower end face of the limiting step 82. The limiting step 82 can limit the downward limit distance of the resistance adjusting member 8.

[0041] Meanwhile, to restrict the axial movement of the adjusting sleeve 10, a snap-fit ​​groove is provided on the upper part of the outer wall of the adjusting sleeve 10, and the light-transmitting outer cover 2 is provided with an inward folded edge. The folded edge engages with the snap-fit ​​groove, thus determining the relative position between the adjusting sleeve 10 and the light-transmitting outer cover 2, allowing the adjusting sleeve 10 to rotate freely. To facilitate rotation, an anti-slip sleeve 4 is fitted onto the outer side of the adjusting sleeve 10. The anti-slip sleeve 4 can be made of anti-slip material or have an anti-slip surface treatment.

[0042] In some embodiments, such as Figure 6As shown, the connecting rod 13 includes a main rod 131 with a cross-shaped cross section and a bottom ring 132 installed at the lower end of the main rod 131. The bottom ring 132 extends into the resistance adjusting member 8 and abuts against the folded step at the upper end of the resistance adjusting member 8. A snap-fit ​​seat 133 is installed at the upper end of the main rod 131. A plurality of L-shaped guide snap-fit ​​seats 152 are provided at the lower end of the sealing block 15. The plurality of L-shaped guide snap-fit ​​seats 152 form a snap-fit ​​space that matches the snap-fit ​​seat 133. The snap-fit ​​seat 133 is inserted laterally into the snap-fit ​​space. The cross-shaped main rod 131 facilitates airflow, and the bottom ring 132 can engage with the main rod 131. A flow hole can also be formed between 1 and 2. At the same time, three L-shaped guide buckles 152 can be set, respectively set on the three sides of the buckle space. A limiting protrusion is also provided. The limiting protrusion can limit the buckle seat 133 to prevent the buckle seat 133 from detaching from the buckle space on its own. The height of the limiting protrusion is less than that of the L-shaped guide buckle 152. This structure facilitates the quick connection between the connecting rod 13 and the sealing block 15. During installation, the connecting rod 13 can be inserted from the lower end of the resistance adjusting component 8. After the bottom ring 132 abuts against the folded step at the upper end of the resistance adjusting component 8, the sealing block 15 and the buckle seat 133 are quickly plugged in.

[0043] Specifically, the inner shell 6 is relatively small in volume and can be made into an approximate cylindrical shape. When the exhalation seat 16 is not subjected to the force of exhalation, it is pushed up to the top of the inner shell 6 by the elastic element 7, blocking the first air inlet and outlet 22. This is the initial state of the respiratory muscle training component.

[0044] When using this respiratory muscle training component for respiratory muscle exhalation training, the user can exhale into the breathing nozzle 3. Since the one-way seal 18 is in a sealed state, exhalation can push open the exhalation movable seat 16, causing it to descend and generate resistance, entering the inner shell 6 and being discharged from the exhaust port 21. When the movable sleeve 9 does not move, the resistance is consistent, and training can be repeated.

[0045] When using this breathing training component for respiratory muscle inhalation training, the user can inhale through the breathing nozzle 3. At this time, the exhalation seat 16 is restricted to the top of the inner shell 1 and cannot move. The one-way seal 18 can open under the action of suction, opening the first inhalation port 23. At the same time, after the inhaled air enters the interior of the exhalation seat 16, it can suck the sealing block 15 upward and open the second inhalation port 24. While the sealing block 15 moves upward, the resistance adjusting component 8 and the movable sleeve 9 are lifted upward together through the connecting rod 13, thereby compressing the elastic component 7 and generating resistance to inhalation. When inhaling, outside air can be drawn in through the second inlet / outlet port 24 at the bottom of the adjusting sleeve 10 and drawn out through the first inhalation port 23 along the inner cavity of the resistance adjusting component 8 and the inner shell 6. When the suction disappears, the elastic component 7 will drive the resistance adjusting component 8 and the movable sleeve 9 to move down and reset, closing the first inhalation port 23 and the second inhalation port 24.

[0046] In this embodiment, as a principle for adjusting breathing resistance, the user can rotate the adjustment sleeve 10, which can drive the resistance adjustment component 8 to rotate. Since the movable sleeve 9 and the inner shell 1 are anti-rotationally fitted, the movable sleeve 9 can be moved axially through the threaded fit when the resistance adjustment component 8 rotates, thereby changing the compression of the elastic component 7 and thus adjusting the resistance during breathing training.

[0047] Therefore, the entire resistance coefficient adjustment range is large, the tolerance range is controllable, and it is suitable for all training needs of different groups of people.

[0048] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0049] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0050] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A resistance breathing trainer, characterized in that, include: The outer shell (1) is equipped with a breathing nozzle (3) at the upper end and a light-transmitting cover (2) at the lower end of the outer shell (1). The inner shell (6) has a first air inlet / outlet (22) at its top. An exhalation seat (16) is provided on the upper part of the inner shell (6) and can slide axially along the inner shell (6). An exhaust port (21) is provided on the upper side wall of the inner shell (6). An exhaust channel (5) corresponding to the exhaust port (21) is provided on the outer shell (1). A first inhalation port (23) is provided on the top of the exhalation seat (16). A one-way seal (18) is installed on the upper end of the first inhalation port (23). A second inhalation port (24) is provided on the bottom of the exhalation seat (16). A sealing block (15) is movably provided on the upper part of the second inhalation port (24). A resistance adjustment component (8) is provided on the lower inner side of the inner shell (6). The resistance adjustment component (8) is hollow inside and has a threaded part (81) on its upper outer side. An adjustment sleeve (10) is sleeved on the lower outer side of the resistance adjustment component (8). The adjustment sleeve (10) and the resistance adjustment component (8) are in an axially movable anti-rotation fit. The bottom of the adjustment sleeve (10) is provided with a second air inlet / outlet (12) that communicates with the inside of the resistance adjustment component (8). The upper end of the connecting rod (13) is connected to the sealing block (15), and the lower end of the connecting rod (13) extends into the resistance adjusting member (8) and abuts against the top of the resistance adjusting member (8). The movable sleeve (9) is located on the upper outer side of the resistance adjusting member (8) and is threaded to the outer side of the resistance adjusting member (8). The movable sleeve (9) and the side wall of the inner shell (6) are anti-rotation fit. An elastic element (7) is disposed axially between the exhalation seat (16) and the movable sleeve (9); The lower part of the inner shell (6) has a perforated window (61) at the position corresponding to the light-transmitting outer cover (2). The lower outer side of the movable sleeve (9) is provided with a marking structure (91) exposed in the perforated window (61). The marking structure (91) is set as a horizontal protrusion, which matches the scale for easy indication. The horizontal protrusion serves as the marking structure (91) embedded in the perforated window (61), thus achieving an anti-rotation fit between the movable sleeve (9) and the side wall of the inner shell (6).

2. The resistance breathing trainer according to claim 1, characterized in that: The lower end of the movable sleeve (9) is provided with a step portion extending radially inward, and the radial inner side of the step portion is provided with a thread that engages with the resistance adjustment member (8). The lower end of the elastic member (7) abuts against the upper end of the step portion.

3. The resistance breathing trainer according to claim 1, characterized in that: The outer side of the exhalation seat (16) and the outer side of the sealing block (15) are provided with a first sealing ring (17), and the upper end surface of the inner shell (6) is provided with a second sealing ring (19), which is in contact with the outer shell (1).

4. The resistance breathing trainer according to claim 1, characterized in that: The exhalation seat (16) is composed of an upper movable seat (25) and a lower movable seat (14) matched vertically. The first inhalation port (23) is located on the upper movable seat (25), and the second inhalation port (24) is located on the lower movable seat (14).

5. The resistance breathing trainer according to claim 1, characterized in that: The inner shell (6) is provided with a top cover (11), the first air inlet / outlet (22) is provided on the top cover (11), and the exhaust port (21) is formed by the top cover (11) and the inner shell (6) being snapped together.

6. The resistance breathing trainer according to claim 1, characterized in that: The lower part of the resistance adjusting member (8) is a sliding sleeve (84) that matches the adjusting sleeve (10). Several first vertical anti-rotation strips (83) are arranged around the outer side wall of the sliding sleeve (84). A second vertical anti-rotation strip that matches the vertical anti-rotation strip (83) is arranged on the inner side wall of the adjusting sleeve (10). A limiting step (82) is provided between the sliding sleeve (84) and the threaded part (81). The lower inner side of the inner shell (6) abuts against the lower end of the limiting step (82).

7. The resistance breathing trainer according to claim 1, characterized in that: The upper part of the outer wall of the adjusting sleeve (10) is provided with a snap-fit ​​groove, and the light-transmitting outer cover (2) is provided with an inward folded edge, which snaps into the snap-fit ​​groove.

8. The resistance breathing trainer according to claim 7, characterized in that: The outer side of the adjusting sleeve (10) is fitted with an anti-slip sleeve (4).

9. The resistance breathing trainer according to claim 7, characterized in that: The connecting rod (13) includes a main rod (131) with a cross-shaped cross section and a bottom ring (132) installed at the lower end of the main rod (131). The bottom ring (132) extends into the resistance adjusting member (8) and abuts against the folded edge step at the upper end of the resistance adjusting member (8). A buckle seat (133) is installed at the upper end of the main rod (131). Multiple L-shaped guide buckles (152) are provided at the lower end of the sealing block (15). The multiple L-shaped guide buckles (152) form a buckling space that matches the buckle seat (133). The buckle seat (133) is inserted laterally into the buckling space.

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