A respiratory exerciser having airway counterflow structure
By designing an airway convection structure in the breathing trainer, the problems of airway contamination and unhygienic disassembly are solved, achieving a clean and hygienic breathing training experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ORCA (YK) INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-08-04
AI Technical Summary
The air vents of existing breathing trainers are easily contaminated by hands, affecting the health of trainees, and it is easy to get hands wet when removing the cover, making it unhygienic to use.
Design a breathing trainer with an airway convection structure. By forming a third air channel through the gap between the upper cover and the air cylinder, direct hand contact is avoided, ensuring clean and hygienic airflow.
The air inhaled by trainees is cleaner and more hygienic, hands are less likely to get contaminated, and the cover is less likely to get wet when disassembling, making it more hygienic and practical.
Smart Images
Figure CN224585286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fitness equipment, and in particular to a breathing trainer with an airway convection structure. Background Technology
[0002] As people become more health-conscious, their fitness needs are no longer limited to simple strength training or aerobic exercise, but rather they seek more comprehensive and personalized training methods. Breathing trainers combine strength training with breathing regulation, satisfying people's needs to improve respiratory function and overall health while simultaneously increasing muscle strength.
[0003] Currently available breathing training devices, such as the utility model patent (publication number CN220478020U) entitled "A Breathing Pressure Load Type Resistance Training Device," include a breathing trainer, breathing weights, an air delivery tube, and a breathing mouthpiece. The breathing trainer includes a breathing chamber, a breathing cap, and a breathing base. The breathing chamber has a breathing chamber inside, and the breathing weights are placed inside the breathing chamber. The trainee can use the breathing mouthpiece to exhale or inhale, which moves the breathing weights up and down in the breathing chamber, thus conducting breathing training. However, since the exhaled or inhaled air enters and exits the breathing chamber through an air hole located on the side of the breathing cap, the air hole is easily contaminated by the trainee's hands when installing the breathing cap for breathing training, causing the trainee to inhale contaminated air and affecting their health. When the trainee removes the breathing cap to clean it, the moisture around the air hole easily wets their hands, which is extremely unhygienic and causes inconvenience. Summary of the Invention
[0004] This invention addresses the shortcomings of existing technologies by providing a breathing trainer with an airway convection structure, which is very clean and hygienic to use and highly practical.
[0005] The technical solution adopted in this utility model is as follows:
[0006] A breathing trainer with an airway convection structure includes an air cylinder, a lower cover, and an upper cover. The air cylinder has an internal movable chamber containing at least one weight. The weight is spaced apart from the inner wall of the movable chamber to form a first airflow channel. The air cylinder has a lower opening at its lower end and an upper opening at its upper end, both connecting to the movable chamber. The lower end and upper end of the first airflow channel are connected to the lower and upper openings, respectively. The lower cover covers the lower opening and has an airflow tube. An operating element for the trainee to exhale or inhale is located on the end of the airflow tube away from the lower cover. A second airflow channel connecting the lower opening and the airflow tube is provided through the lower cover. The upper cover covers the upper opening and is spaced apart from the air cylinder to form a third airflow channel connecting the upper opening to the outside.
[0007] Preferably, the third air guide channel includes an upper air guide groove recessed in the inner wall of the upper cover. When the upper cover is closed on the upper opening, the upper air guide groove forms a gap channel arranged between the upper cover and the top of the air cylinder and communicating with the upper opening.
[0008] Preferably, at least two upper air guide grooves are arranged along the circumference of the upper cover, and a support portion is formed between two adjacent upper air guide grooves. The bottom surface of the support portion is lower than the top surface of the upper air guide groove. When the upper cover is closed on the upper opening, the top of the air cylinder abuts against the bottom surface of the support portion, and the top surface of the upper air guide groove and the top of the air cylinder are arranged at intervals to form the first gap channel.
[0009] Preferably, a first air guide portion is formed between the outer peripheral sides of two adjacent upper air guide slots. The first air guide portion is located at the outer end of the support portion, and the bottom surface of the first air guide portion is higher than the bottom surface of the support portion to form a first air guide space on the lower side of the first air guide portion. When the upper cover is closed on the upper opening, the outer peripheral sides of two adjacent upper air guide slots are connected through the first air guide space.
[0010] Preferably, a second air guide portion is formed between the inner peripheral sides of two adjacent upper air guide slots. The second air guide portion is located at the inner end of the support portion, and the bottom surface of the second air guide portion is higher than the bottom surface of the support portion to form a second air guide space on the lower side of the second air guide portion. When the upper cover is closed on the upper opening, the inner peripheral sides of two adjacent upper air guide slots are connected through the second air guide space.
[0011] Preferably, the upper cover includes a top plate and a first side plate extending downward from the periphery of the top plate. The top plate covers the upper side of the upper opening. The first side plate is sleeved and fitted onto the outside of the air cylinder. The upper air guide groove is disposed on the lower side of the top plate. The third air guide channel also includes a gap channel two disposed between the first side plate and the air cylinder and communicating with the outside and gap channel one.
[0012] Preferably, the inner wall of the first side plate is provided with a first internal thread structure, the outer wall of the air cylinder is provided with a first external thread structure, and the upper cover and the outer cylinder are detachably connected by the first internal thread structure and the first external thread structure engaging with each other. The second gap channel is entirely formed by the gap between the first internal thread structure and the first external thread structure.
[0013] Preferably, the inner wall of the first side plate is provided with a first internal thread structure, and the outer wall of the air cylinder is provided with a first external thread structure. The upper cover and the outer cylinder are detachably connected by the first internal thread structure and the first external thread structure engaging with each other. The first internal thread structure includes at least two internal thread sections, and an air guide port communicating with the outside world and the first gap channel is formed between adjacent two internal thread sections at intervals. The second gap channel is formed wholly or partially by the air guide port.
[0014] Preferably, the air cylinder component is configured as a polygonal prism cylinder structure, and a stepped platform is recessed along its outer periphery at the upper end of the air cylinder component. The first external thread structure is disposed on the outer wall of the stepped platform, and the two parts of the gap channel are formed by the gap between the bottom surface of the first side plate and the bottom wall of the stepped platform.
[0015] Preferably, the lower cover includes a base and a second side plate extending upward from the periphery of the base. The base covers the lower side of the lower opening, and the second side plate is sleeved and fitted onto the gas cylinder. The top center of the base has a support platform for supporting the weight. The outer periphery of the support platform has an annular groove, and a sealing gasket for interference fit with the lower end of the gas cylinder is installed in the annular groove. The side of the base has a protruding connector for connecting the gas guide tube. The second gas guide channel includes a guide channel extending from the connector to the support platform and at least two lower gas guide grooves spaced apart along the circumferential direction of the top of the support platform and communicating with the guide channel. When the lower cover is closed on the lower opening, the lower gas guide grooves form a gap channel three arranged between the lower cover and the bottom of the weight and communicating with the lower opening. The bottom surface of the sealing gasket is lower than the top surface of the support platform, and a fourth gas guide channel is formed between the sealing gasket and the weight, communicating with the lower gas guide groove and the first gas guide channel.
[0016] The beneficial effects achieved by this utility model are as follows:
[0017] The breathing trainer provided by this utility model allows the exhaled air to be sequentially guided to the outside through the operating component, air guide tube, second air guide channel, lower opening, first air guide channel, upper opening, and third air guide channel during exhalation training. During inhalation training, the outside air is sequentially guided into the trainee's mouth through the third air guide channel, upper opening, first air guide channel, lower opening, second air guide channel, air guide tube, and operating component, thus enabling exhalation or inhalation training. Furthermore, because the third air guide channel is formed by the upper cover and air cylinder component with a gap fit, the trainee's hands are less likely to touch the third air guide channel when installing or removing the upper cover. Therefore, the third air guide channel is less likely to be contaminated by hands when installing the upper cover, resulting in cleaner and more hygienic inhaled air. When removing the upper cover, moisture around the third air guide channel is less likely to wet the hands, making it very clean and hygienic to use and highly practical.
[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0020] Figure 1 This is a schematic diagram of the structure of a breathing trainer according to an embodiment of the present invention.
[0021] Figure 2 This is a cross-sectional view of a breathing trainer according to an embodiment of the present invention.
[0022] Figure 3 This is an exploded structural diagram of a breathing trainer according to an embodiment of the present invention.
[0023] Figure 4 This is a schematic diagram of the structure of the upper cover component according to an embodiment of the present utility model.
[0024] Figure 5 This is a schematic diagram of the structure of the lower cover of an embodiment of the present utility model.
[0025] Figure 6 This is a schematic diagram of the structure of a breathing trainer according to another embodiment of the present invention.
[0026] Reference numerals: 1. Air cylinder component; 11. Movable chamber; 12. Lower opening; 13. Upper opening; 14. Ladder platform; 2. Lower cover; 21. Base; 22. Second side plate; 23. Support platform; 24. Annular groove; 241. Sealing gasket; 25. Connector; 26. Guide channel; 27. Lower air guide groove; 38. Upper cover; 39. Upper air guide groove; 32. Support part; 33. First air guide part; 34. Second air guide part; 35. Top plate; 36. First side plate; 36. Internal thread part; 361. Air guide port; 362. Weight component; 4. Air guide pipe component; 5. Operating component; 6. First air guide channel; 101. Second air guide channel; 102. Third air guide channel; 103. Fourth air guide channel; 104. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a limitation of quantity, but rather indicate the presence of at least one.
[0032] like Figure 1As shown in the figure, as an embodiment of the present invention, a breathing trainer with an airway convection structure is provided, including an air cylinder 1, a lower cover 2, and an upper cover 3. The air cylinder 1 has an internal movable chamber 11, and one or more weights 4 are arranged inside the movable chamber 11. The weights 4 are spaced apart from the inner wall of the movable chamber 11 to form a first air passage 101 through which gas can flow. The lower end of the air cylinder 1 has a lower opening 12 communicating with the movable chamber 11, and the upper end has an upper opening 13 communicating with the movable chamber 11. The lower end of the first air passage 101 communicates with the lower opening 12, and the upper end communicates with the upper opening 13. The lower cover 2 covers the lower opening 12 and has an air guide tube 5. One end of the air guide tube 5 away from the lower cover 2 has an operating element 6 for the trainee to exhale or inhale. A second air passage 102 communicating with the lower opening 12 and the air guide tube 5 is provided through the lower cover 2. The upper cover 3 covers the upper opening 13, and the upper cover 3 and the air cylinder 1 are arranged with a gap fit to form a third air passage 103 connecting the upper opening 13 with the outside. In this embodiment of the breathing trainer, during exhalation training, the air exhaled by the trainee can be sequentially led to the outside through the operating component 6, the air guide tube 5, the second air passage 102, the lower opening 12, the first air passage 101, the upper opening 13, and the third air passage 103. During inhalation training, the air from the outside can be sequentially introduced into the trainee's mouth through the third air passage 103, the upper opening 13, the first air passage 101, the lower opening 12, the second air passage 102, the air guide tube 5, and the operating component 6, thereby allowing air to enter the body. When performing exhalation or inhalation training, and because the third air channel 103 is formed by the upper cover 3 and the air cylinder 1 in a gap fit arrangement, the trainee's hands are unlikely to touch the third air channel 103 when installing or removing the upper cover. Thus, when installing the upper cover 3, the third air channel 103 is not easily contaminated by the hands, making the air inhaled by the trainee cleaner and more hygienic. When removing the upper cover 3, the moisture around the third air channel 103 is also less likely to wet the hands. It is very clean and hygienic to use and has extremely high practicality.
[0033] As shown in the figure, in some specific embodiments, the third air guide channel 103 includes an upper air guide groove 31 recessed in the inner wall of the upper cover 3. When the upper cover 3 is closed on the upper opening 13, the upper air guide groove 31 forms a gap channel 1 arranged between the upper cover 3 and the top of the air cylinder 1 and communicating with the upper opening 13, so that gas can enter and exit through the gap channel 1. The upper air guide groove 31 is recessed in the inner wall of the upper cover 3 and is an open groove air guide structure, which is easier to clean than the air hole air guide structure in the prior art.
[0034] As shown in the figure, in some specific embodiments, four upper air guide grooves 31 are arranged along the circumference of the upper cover 3. In other embodiments, the upper air guide grooves 31 may be set to two or other numbers. A support portion 32 is formed between two adjacent upper air guide grooves 31. The bottom surface of the support portion 32 is lower than the top surface of the upper air guide groove 31. When the upper cover 3 is closed on the upper opening 13, the top of the air cylinder 1 abuts against the bottom surface of the support portion 32. The support portion 32 is used to support and limit the upper cover 3 relative to the air cylinder 1. The top surface of the upper air guide groove 31 and the top of the air cylinder 1 are arranged at intervals to form the first gap channel, which has a simple and stable structure.
[0035] As shown in the figure, in some specific embodiments, a first air guide section 33 is also formed between the outer peripheral sides of two adjacent upper air guide grooves 31. The first air guide section 33 is located at the outer end of the support section 32. The bottom surface of the first air guide section 33 is higher than the bottom surface of the support section 32 to form a first air guide space under the first air guide section 33. When the upper cover 3 is closed on the upper opening 13, the outer peripheral sides of two adjacent upper air guide grooves 31 are connected through the first air guide space, so that the gas can flow between the outer peripheral sides of two adjacent upper air guide grooves 31, which is conducive to smoother introduction or export of gas.
[0036] As shown in the figure, in some specific embodiments, a second air guide portion 34 is formed between the inner circumferential sides of two adjacent upper air guide slots 31. The second air guide portion 34 is located at the inner end of the support portion 32, and the bottom surface of the second air guide portion 34 is higher than the bottom surface of the support portion 32 to form a second air guide space under the second air guide portion 34. When the upper cover 3 is closed on the upper opening 13, the inner circumferential sides of two adjacent upper air guide slots 31 are connected through the second air guide space, so that gas can flow between the inner circumferential sides of two adjacent upper air guide slots 31, which further facilitates smoother introduction or export of gas. In this embodiment, the second air guide spaces under each second air guide portion 34 are interconnected, which facilitates the introduction or export of gas from multiple directions of the upper opening 13, thereby further facilitating smooth gas convection during breathing training.
[0037] As shown in the figure, in some specific embodiments, the upper cover 3 includes a top plate 35 and a first side plate 36 extending downward from the periphery of the top plate 35. The top plate 35 covers the upper side of the upper opening 13. The first side plate 36 is sleeved and fitted on the outside of the air cylinder 1. The upper air guide groove 31 is arranged on the lower side of the top plate 35. The third air guide channel 103 also includes a second gap channel arranged between the first side plate 36 and the air cylinder 1 and communicating with the outside and the first gap channel, so that the gas in the movable chamber 11 can be discharged to the outside through the upper opening 13, the first gap channel and the second gap channel, and the outside air can be introduced into the movable chamber 11 through the second gap channel, the first gap channel and the upper opening 13.
[0038] As shown in the figure, in some specific embodiments, the inner wall of the first side plate 36 is provided with a first internal thread structure, and the outer wall of the air cylinder 1 is provided with a first external thread structure. The upper cover 3 and the outer cylinder 1 are detachably connected by the mutual threading of the first internal thread structure and the first external thread structure, and the connection is tight and reliable. The first internal thread structure includes four internal thread sections 361. In other embodiments, the thread section 361 can also be set to two sections or other numbers. An air guide port 362 communicating with the outside and the gap channel 1 is arranged at intervals between two adjacent internal thread sections 361. A part of the gap channel 2 is formed by the air guide port 362, and a part is formed by the gap between the first internal thread structure and the first external thread structure. The gas in the gap channel 1 can be discharged to the outside through the air guide port 362, or it can be discharged to the outside through the gap between the first internal thread structure and the first external thread structure. Outside air can be introduced into the gap channel 1 through the air guide port 362, or it can be introduced into the gap channel 1 through the gap between the first internal thread structure and the first external thread structure, which facilitates the introduction or export of gas, thereby facilitating breathing training for the trainee. The air inlet 362 increases the gap width, which is beneficial for the smooth introduction or export of gas. In some other embodiments, the gap channel 2 can also be formed entirely by the air inlet 362, or entirely by the gap between the first internal thread structure and the first external thread structure.
[0039] As shown in the figure, in some specific embodiments, the air cylinder 1 is configured as a polygonal prism structure, such as a hexagonal prism structure, an octagonal prism structure, or other non-cylindrical structures, which are more convenient for trainees to grip stably compared to cylindrical structures. A stepped platform 14 is recessed along the outer periphery of the upper end of the air cylinder 1. A first external thread structure is provided on the outer wall of the stepped platform 14. In this embodiment, the two gap channels are formed by the gap between the bottom surface of the first side plate 36 and the bottom wall of the stepped platform 14, making the arrangement of the upper cover 3 and the air cylinder 1 more compact. Gas in the air inlet 362 or the gap between the first internal thread structure and the first external thread structure can be discharged to the outside through the gap between the bottom surface of the first side plate 36 and the bottom wall of the stepped platform 14. Outside air can be introduced into the air inlet 362 or the gap between the first internal thread structure and the first external thread structure through the gap between the bottom surface of the first side plate 36 and the bottom wall of the stepped platform 14. In other embodiments, the ladder 14 may be omitted, and the first external thread structure may be directly set on the outer wall of the air cylinder 1, so that the air inlet 362 or the gap between the first internal thread structure and the first external thread structure can be directly connected to the outside.
[0040] As shown in the figure, in some specific embodiments, the lower cover 2 includes a base 21 and a second side plate 22 extending upward from the periphery of the base 21. The base 21 covers the lower side of the lower opening 12, and the second side plate 22 is sleeved and fitted onto the outside of the air cylinder component 1. Preferably, it is configured as a threaded connection, which is beneficial for the stable and reliable connection between the lower cover 2 and the air cylinder component 1, and facilitates the installation or removal of the lower cover 2 and cleaning. The top center of the base 21 is provided with a support platform 23 for supporting the weight component 4. The outer periphery of the support platform 23 is recessed with an annular groove 24. A sealing gasket 241 for interference fit with the lower end of the air cylinder component 1 is installed in the annular groove 24. The sealing gasket 241 can be made of flexible materials such as soft silicone, which has a good sealing effect. The base 21 has a protruding connector 25 for connecting the air guide tube 5. The second air guide channel 102 includes a guide channel 26 extending from the connector 25 to the support platform 23, and four lower air guide grooves 27 spaced apart along the top circumference of the support platform 23 and communicating with the guide channel 26. In some embodiments, the lower air guide grooves 27 may also be two or other numbers. When the lower cover 2 is closed on the lower opening 12, the lower air guide grooves 27 form a gap channel three arranged between the bottom of the lower cover 2 and the weight 4 and communicating with the lower opening 12. The bottom surface of the sealing gasket 241 is lower than the top surface of the support platform 23, and a fourth air guide channel 104 is formed between the sealing gasket 241 and the weight 4, communicating with the lower air guide grooves 27 and the first air guide channel 101. During exhalation training, the air inhaled by the trainee into the operating device 6 passes through the air guide tube 5. A portion of the air enters the active chamber 11 through the guide channel 26 and the lower opening 12, pushing the weight 4 upwards along the active chamber 11. Simultaneously, the air diffuses along the bottom surface of the weight 4 into the first guide channel 101, and then sequentially exits to the outside through the upper opening 13 and the third air guide channel 103. A portion of the air sequentially passes through the guide channel 26 and the lower air guide groove 27, connecting with the lower opening 12, and is then introduced into the first air guide channel 104 along the fourth air guide channel 104. Inside the active chamber 11, the air is then sequentially exhaled through the upper opening 13 and the third air passage 103 to the outside. Because the air inhaled into the active chamber 11 can always convect with the outside, the trainee needs to continuously inhale air into the active chamber 11 to keep the weight 4 in a suspended state. During inhalation training, after the outside air enters the active chamber 11 through the third air passage 103 and the upper opening 13, it can be sequentially inhaled into the trainee's mouth through the first air passage 101, the fourth air passage 104, the lower air groove 27, the guide channel 26, the air passage 5, and the operating component 6.
[0041] As shown in the figure, in some specific embodiments, the air cylinder component 1 is made of transparent material, making it convenient for the trainee to observe the rising and falling status of the weight component 4 in the active chamber 11 during breathing training. A first magnetic attraction component is provided at the upper part of the weight component 4, and a second magnetic attraction component is provided at the lower part of the weight component 4. Adjacent weight components 4 can be magnetically connected through the magnetic attraction of the first and second magnetic attraction components, ensuring that all weight components 4 in the active chamber 11 can move up and down together as a whole during breathing training, avoiding separate movement that would affect the training effect. The operating component 6 is used to cover the outer periphery of the trainee's mouth. The operating component 6 is designed with an elliptical structure, which is more in line with the human body structure and can fit tightly to the outer periphery of the trainee's mouth to prevent air leakage. In other embodiments, the operating component 6 can also be designed as a circular or other shape, or it can be designed as an inlet structure for being placed inside the trainee's mouth.
[0042] As shown in the figure, in some specific embodiments, the top surface of the top plate 35 is set as a spherical structure, which improves the comfort of gripping the top cover 3. The outer periphery of the base 21 and the lower part of the second side plate 22 are set outward, thereby increasing the stability of the base 21 and the second side plate 22 when placed on a medium surface such as a table. As shown in the figure, as another embodiment of this utility model, a breathing trainer with an airway convection structure is also provided. The main difference between this embodiment and the above embodiment is that the top surface of the top plate 35 is set as a planar structure, and the outer periphery of the base 21 and the lower part of the second side plate 22 are not set outward.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
[0044] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.
Claims
1. A breathing trainer with an airway convection structure, characterized in that, include: A gas cylinder has an internal movable chamber. At least one weight is arranged in the movable chamber. The weight is arranged with a gap between it and the inner side wall of the movable chamber to form a first gas guide channel through which gas can flow. The lower end of the gas cylinder is provided with a lower opening communicating with the movable chamber, and the upper end is provided with an upper opening communicating with the movable chamber. The lower end of the first gas guide channel is connected to the lower opening, and the upper end is connected to the upper opening. The lower cover fits over the lower opening. An air guide tube is provided on the lower cover. An operating device for the trainee to exhale or inhale is provided at one end of the air guide tube away from the lower cover. A second air guide channel is provided through the lower cover, connecting the lower opening and the air guide tube. The upper cover fits over the upper opening, and the upper cover and the air cylinder are arranged in a gap fit to form a third air passage connecting the upper opening to the outside.
2. The breathing trainer according to claim 1, characterized in that: The third air guide channel includes an upper air guide groove recessed in the inner wall of the upper cover. When the upper cover is closed on the upper opening, the upper air guide groove forms a gap channel arranged between the upper cover and the top of the air cylinder and communicating with the upper opening.
3. The breathing trainer according to claim 2, characterized in that: At least two upper air guide grooves are arranged along the circumference of the upper cover. A support portion is formed between two adjacent upper air guide grooves. The bottom surface of the support portion is lower than the top surface of the upper air guide groove. When the upper cover is closed on the upper opening, the top of the air cylinder abuts against the bottom surface of the support portion. The top surface of the upper air guide groove and the top of the air cylinder are arranged at intervals to form the first gap channel.
4. The breathing trainer according to claim 3, characterized in that: A first air guide portion is formed between the outer periphery of two adjacent upper air guide slots. The first air guide portion is located at the outer end of the support portion. The bottom surface of the first air guide portion is higher than the bottom surface of the support portion to form a first air guide space on the lower side of the first air guide portion. When the upper cover is closed on the upper opening, the outer periphery of two adjacent upper air guide slots are connected through the first air guide space.
5. The breathing trainer according to claim 4, characterized in that: A second air guide section is formed between the inner peripheral sides of two adjacent upper air guide grooves. The second air guide section is located at the inner end of the support section. The bottom surface of the second air guide section is higher than the bottom surface of the support section to form a second air guide space on the lower side of the second air guide section. When the upper cover is closed on the upper opening, the inner peripheral sides of two adjacent upper air guide grooves are connected through the second air guide space.
6. The breathing trainer according to any one of claims 2-5, characterized in that: The upper cover includes a top plate and a first side plate extending downward from the periphery of the top plate. The top plate covers the upper side of the upper opening. The first side plate is sleeved and fitted on the outside of the air cylinder. The upper air guide groove is arranged on the lower side of the top plate. The third air guide channel also includes a gap channel two arranged between the first side plate and the air cylinder and communicating with the outside and gap channel one.
7. The breathing trainer according to claim 6, characterized in that: The inner wall of the first side plate is provided with a first internal thread structure, and the outer wall of the air cylinder is provided with a first external thread structure. The upper cover and the outer cylinder are detachably connected by the mutual threading of the first internal thread structure and the first external thread structure. The second gap channel is entirely formed by the gap between the first internal thread structure and the first external thread structure.
8. The breathing trainer according to claim 6, characterized in that: The inner wall of the first side plate is provided with a first internal thread structure, and the outer wall of the air cylinder is provided with a first external thread structure. The upper cover and the outer cylinder are detachably connected by the first internal thread structure and the first external thread structure engaging with each other. The first internal thread structure includes at least two internal thread sections, and an air guide port communicating with the outside world and the first gap channel is formed between adjacent two internal thread sections at intervals. The second gap channel is formed wholly or partially by the air guide port.
9. The breathing trainer according to claim 7, characterized in that: The air cylinder component is configured as a polygonal prism cylinder structure. A stepped platform is recessed along the outer periphery of the upper end of the air cylinder component. The first external thread structure is provided on the outer wall of the stepped platform. The two parts of the gap channel are formed by the gap between the bottom surface of the first side plate and the bottom wall of the stepped platform.
10. The breathing trainer according to any one of claims 1-5, characterized in that: The lower cover includes a base and a second side plate extending upward from the periphery of the base. The base covers the lower side of the lower opening. The second side plate is sleeved and fitted onto the gas cylinder. The top center of the base has a support platform for supporting the weight. The outer periphery of the support platform has an annular groove. A sealing gasket for interference fit with the lower end of the gas cylinder is installed in the annular groove. The side of the base has a connector for connecting the gas guide tube. The second gas guide channel includes a guide channel extending from the connector to the support platform and at least two lower gas guide grooves spaced apart along the top circumference of the support platform and communicating with the guide channel. When the lower cover is closed on the lower opening, the lower gas guide grooves form a gap channel three arranged between the lower cover and the bottom of the weight and communicating with the lower opening. The bottom surface of the sealing gasket is lower than the top surface of the support platform, and a fourth gas guide channel is formed between the sealing gasket and the weight, communicating with the lower gas guide groove and the first gas guide channel.