Compact respiratory training device

Abstract

The invention discloses a compact respiratory training device, comprising: a main housing provided with a middle cavity, an inhalation cavity and an exhalation cavity, the middle cavity communicating with the inhalation cavity through a middle air inlet and communicating with the exhalation cavity through a middle air outlet; the suction unit is rotationally assembled in the suction cavity and provided with a suction inlet and a plurality of suction outlets of different sizes, the corresponding outlets are selected to be communicated with the middle air inlet hole during rotation, and a first one-way valve is arranged in the suction unit. The exhalation unit is rotationally assembled in the exhalation cavity and provided with an exhalation outlet and a plurality of exhalation inlets of different sizes, the corresponding inlet is selected to communicate with the middle air outlet during rotation, and a second one-way valve is arranged in the exhalation unit; and the mouthpiece is detachably mounted at the opening of the middle cavity. The inhalation and exhalation resistance is adjusted through rotation, multi-stage accurate control is achieved, the structure is compact, and the size is small; a ball plunger positioning mechanism is adopted to provide touch feedback, so that misoperation is prevented; the mouthpiece is detachable and convenient to clean, the sanitation is improved, and the precise rehabilitation training requirement is met.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a compact breathing trainer. Background Art

[0002] As an important auxiliary tool for pulmonary function rehabilitation and sports training, the resistance adjustment accuracy and device portability of a breathing trainer directly affect the training effect. The breathing trainer disclosed in Chinese invention patent CN112891858B adopts a threaded stepless adjustment method, and realizes resistance adjustment by rotating the valve cover to change the air flow passage area. However, such a structure has obvious defects: on the one hand, the threaded adjustment lacks clear gear markings, and it is difficult to accurately control the resistance level during the training process. Especially for rehabilitation patients, stepless adjustment is likely to lead to out-of-control training intensity; on the other hand, the device has a large volume, and the carrying and holding comfort is poor.

[0003] Therefore, there is an urgent need to develop a breathing training device with clear gears, a compact structure and stable multi-stage resistance maintenance to meet the precise and portable clinical and sports training needs. Summary of the Invention

[0004] In order to overcome the above defects of the existing breathing trainer, the present invention provides a compact breathing trainer.

[0005] The technical solution adopted by the present invention is as follows: a compact breathing trainer, comprising: a main housing having an intermediate cavity, an inhalation cavity and an exhalation cavity, an intermediate intake hole is provided between the inhalation cavity and the intermediate cavity, and an intermediate outlet is provided between the intermediate cavity and the exhalation cavity; an inhalation unit rotatably assembled in the inhalation cavity, having an inhalation inlet and a plurality of inhalation outlets with different sizes, when the inhalation unit rotates, any one of the inhalation outlets is aligned with and communicates with the intermediate intake hole, and a first one-way valve from the inhalation inlet to the inhalation outlet is provided therein; an exhalation unit rotatably assembled in the exhalation cavity, having an exhalation outlet and a plurality of exhalation inlets with different sizes, when the exhalation unit rotates, any one of the exhalation inlets is aligned with and communicates with the intermediate outlet, and a second one-way valve from the exhalation inlet to the exhalation outlet is provided therein; a mouthpiece detachably installed at the open end of the intermediate cavity, having a breathing port communicating with the intermediate cavity.

[0006] Preferably, the inhalation unit includes: a first adjustment cover rotatably assembled in the inhalation cavity, and a plurality of the inhalation outlets are arranged on the inner end plate of the first adjustment cover and are circumferentially and uniformly arranged along the rotation center of the first adjustment cover; a first knob integrally assembled with the first adjustment cover, with an installation space for the first one-way valve formed inside, and the inhalation inlet is arranged at the outer end of the first knob; an elastic first limiting member installed inside the first knob, and a plurality of first limiting notches corresponding to the inhalation outlets one by one are arranged on the inner wall of the inhalation cavity. When the first knob rotates, the first limiting member cooperates with any one of the first limiting notches; the exhalation unit includes: a second adjustment cover rotatably assembled in the exhalation cavity, and a plurality of the exhalation inlets are arranged on the inner end plate of the second adjustment cover and are circumferentially and uniformly arranged along the rotation center of the second adjustment cover; a second knob integrally assembled with the second adjustment cover, with an installation space for the second one-way valve formed inside, and the exhalation outlet is arranged at the outer end of the second knob; an elastic second limiting member installed inside the second knob, and a plurality of second limiting notches corresponding to the exhalation inlets one by one are arranged on the inner wall of the exhalation cavity. When the second knob rotates, the second limiting member cooperates with any one of the second limiting notches.

[0007] Preferably, the main housing is a two-half housing assembly structure.

[0008] Preferably, the inhalation cavity and the exhalation cavity are symmetrically arranged with respect to the intermediate cavity, and the inhalation unit and the exhalation unit are symmetrically arranged with respect to the main housing.

[0009] Preferably, the first one-way valve and the second one-way valve adopt diaphragm valves.

[0010] Preferably, the first limiting member and the second limiting member adopt ball head plungers and are respectively assembled in the first knob and the second knob.

[0011] Preferably, both the inhalation outlet and the exhalation inlet are six round holes, and the diameters increase sequentially along the circumferential direction.

[0012] Preferably, a first sealing rib is provided on the circumference of the first adjustment cover, and a second sealing rib is provided on the circumference of the second adjustment cover.

[0013] The present invention has the following beneficial effects: 1. Precise hierarchical adjustment: Through the through-hole arrays with gradient diameter changes respectively provided in the inhalation unit and the exhalation unit, and in cooperation with the positioning mechanism of the ball head plunger and the limiting notch, six-level precise control of the inhalation / exhalation resistance is achieved, with a small adjustment error rate. Compared with traditional stepless adjustment devices, the controllability of training parameters is significantly improved, especially suitable for rehabilitation treatments that require precise incremental training intensity; 2. Modular Compact Structure: The inhalation chamber and exhalation chamber with symmetric distribution are integrated into the main housing. The dynamic sealing between rotating components is achieved through the first and second sealing ribs. The diaphragm-type one-way valve is adopted to reduce the overall thickness. While maintaining airtightness, the volume of the whole machine is reduced compared with similar products, making it suitable for single-handed holding. 3. Anti-misoperation Design: The inhalation unit and exhalation unit adopt independent rotation control, combined with a ball head plunger positioning mechanism with tactile feedback. Each time the rotation switches gears, an obvious "click" sound and vibration feedback are generated, avoiding the problem of accidental touch and displacement of the traditional screw adjustment device. 4. Hygienic and Convenient: The mouthpiece is detachably connected to the main housing by a snap connection, which is suitable for high-temperature sterilization of the mouthpiece and also convenient to use the mouthpiece as a consumable. Description of the Drawings

[0014] Figure 1 It is a schematic external view of an embodiment of the present invention.

[0015] Figure 2 It is a schematic cross-sectional view of an embodiment of the present invention.

[0016] Figure 3 It is a schematic view of a half shell of the main housing in an embodiment of the present invention.

[0017] Figure 4 It is an assembly schematic view of the inhalation unit in an embodiment of the present invention.

[0018] Figure 5 It is an assembly schematic view of the exhalation unit in an embodiment of the present invention.

[0019] Figure 6 It is a schematic diagram of the action principle of the first limiting member in an embodiment of the present invention.

[0020] Figure 7 It is a schematic structural view of the first adjustment cover in an embodiment of the present invention.

[0021] Main housing 1, intermediate cavity 101, inhalation chamber 102, exhalation chamber 103, intermediate air inlet 104, intermediate air outlet 105, first limiting notch 106, second limiting notch 107; Inhalation unit 2, inhalation inlet 201, inhalation outlet 202, first one-way valve 203, first adjustment cover 204, first knob 205, first limiting member 206, first sealing rib 207; Exhalation unit 3, exhalation outlet 301, exhalation inlet 302, second one-way valve 303, second adjustment cover 304, second knob 305, second limiting member 306, second sealing rib 307; Mouthpiece 4, breathing port 401. Detailed Embodiments

[0022] The present invention will be further described below in conjunction with embodiments and the accompanying drawings.

[0023] In the embodiment, as Figure 1 , Figure 2 shown, it is a compact breathing trainer, including: a main housing 1, having an intermediate cavity 101, an inhalation cavity 102, and an exhalation cavity 103. An intermediate air inlet hole 104 is provided between the inhalation cavity 102 and the intermediate cavity 101, and an intermediate air outlet 105 is provided between the intermediate cavity 101 and the exhalation cavity 103; an inhalation unit 2 is rotatably assembled in the inhalation cavity 102, having an inhalation inlet 201 and a plurality of inhalation outlets 202 with different sizes. When the inhalation unit 2 rotates, any one of the inhalation outlets 202 is aligned with and communicates with the intermediate air inlet hole 104, and a first one-way valve 203 from the inhalation inlet 201 to the inhalation outlet 202 is provided inside; an exhalation unit 3 is rotatably assembled in the exhalation cavity 103, having an exhalation outlet 301 and a plurality of exhalation inlets 302 with different sizes. When the exhalation unit 3 rotates, any one of the exhalation inlets 302 is aligned with and communicates with the intermediate air outlet 105, and a second one-way valve 303 from the exhalation inlet 302 to the exhalation outlet 301 is provided inside; a mouthpiece 4 is detachably installed at the open end of the intermediate cavity 101, having a breathing port 401 communicating with the intermediate cavity 101. In this embodiment, the multi-stage precise control of the inhalation / exhalation resistance is realized by rotating the inhalation unit 2 and the exhalation unit 3, the adjustment error rate is small, and the controllability of the training parameters is significantly improved compared with the traditional stepless adjustment device, especially suitable for rehabilitation treatment that requires precise incremental training intensity.

[0024] In the embodiment, as Figure 4 , Figure 6 , Figure 7 shown, the inhalation unit 2 includes: a first adjustment cover 204 is rotatably assembled in the inhalation cavity 102, and six inhalation outlets 202 with increasing diameters are evenly arranged along the circumference of the inner end plate of the first adjustment cover 204; a first knob 205 is assembled with the first adjustment cover 204 as a whole, and an installation space for the first one-way valve 203 is formed inside, and the inhalation inlet 201 is arranged at the outer end of the first knob 205; an elastic first limiting member 206 is installed in the first knob 205, and six first limiting notches 106 are provided on the inner wall of the inhalation cavity 102. When the first knob 205 rotates, the first limiting member 206 cooperates with any one of the first limiting notches 106. The first adjustment cover 204 and the first knob 205 are provided with a limiting structure in the circumferential direction to ensure the accurate correspondence between the six inhalation outlets 202 with increasing diameters and the six first limiting notches 106. The first knob 205 has a concave installation groove for fixing the first limiting member 206. This structure realizes the switching of one gear every 60° rotation, and the operation is precise.

[0025] In the embodiment, as Figure 5As shown in the figure, the exhalation unit 3 includes: a second adjustment cover 304 is rotatably assembled in the exhalation cavity 103, and six exhalation inlets 302 with increasing diameters are evenly arranged along the circumference of the inner end plate of the second adjustment cover 304; a second knob 305 is assembled with the second adjustment cover 304 as a whole, and an installation space for the second one-way valve 303 is formed inside. The exhalation outlet 301 is arranged at the outer end of the second knob 305; an elastic second limiting member 306 is installed in the second knob 305, and six second limiting notches 107 are provided on the inner wall of the exhalation cavity 103. When the second knob 305 rotates, the second limiting member 306 cooperates with any one of the second limiting notches 107. Except that the installation direction of the second one-way valve 303 is opposite to that of the first one-way valve 203, the overall structure of the exhalation unit 3 is basically the same as that of the inhalation unit 2.

[0026] In the embodiment, as Figure 3 shown, the main housing 1 is a structure assembled by two half-shells, injection molded with medical-grade ABS material, and connected together by welding or screws. The inhalation cavity 102 and the exhalation cavity 103 are symmetrically arranged with respect to the intermediate cavity 101, and the inhalation unit 2 and the exhalation unit 3 are symmetrically arranged with respect to the main housing 1, so that the air flow path is symmetrically distributed, reducing the generation of turbulence and reducing the pressure loss.

[0027] In the embodiment, as Figure 4 、 Figure 5 shown, the first one-way valve 203 and the second one-way valve 303 adopt silicone diaphragm valves, which can effectively prevent the reverse flow of air and at the same time reduce the overall thickness of the valve body. The first adjustment cover 204 is circumferentially provided with a first sealing rib 207, and the second adjustment cover 304 is circumferentially provided with a second sealing rib 307, which form a seal with the inner wall of the corresponding cavity to reduce the leakage amount.

[0028] In the embodiment, as Figure 7 shown, the first limiting member 206 and the second limiting member 306 adopt ball head plungers, which produce an obvious "click" sound when cooperating with the limiting notches, providing a clear gear sound and tactile feedback to prevent misoperation.

[0029] In the embodiment, as Figure 4 、 Figure 5 shown, both the inhalation outlet 202 and the exhalation inlet 302 are six round holes, increasing in each gear, meeting the training needs of all age groups from children to adults and different physical conditions.

[0030] Obviously, the above embodiments of the present invention are only examples for explaining the present invention, and are not intended to limit the implementation manner of the present invention. Other obvious changes or variations derived from the essential spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. A compact breathing trainer, characterized in that: include: A main housing (1) having a middle cavity (101), an inhalation cavity (102) and an exhalation cavity (103), wherein a middle air inlet (104) is provided between the inhalation cavity (102) and the middle cavity (101), and a middle air outlet (105) is provided between the middle cavity (101) and the exhalation cavity (103); A suction unit (2) is rotatably assembled in the suction chamber (102), and has a suction inlet (201) and a plurality of suction outlets (202) of different sizes. When the suction unit (2) rotates, any one of the suction outlets (202) is aligned with and communicates with the middle air inlet hole (104). A first one-way valve (203) is provided from the suction inlet (201) to the suction outlet (202); an exhalation unit (3) rotatably assembled in the exhalation chamber (103), having an exhalation outlet (301) and a plurality of exhalation inlets (302) of different sizes; when the exhalation unit (3) rotates, any of the exhalation inlets (302) aligns with and communicates with the middle air outlet (105); and a second one-way valve (303) is provided from the exhalation inlet (302) to the exhalation outlet (301); The mouthpiece (4) is detachably mounted at the open end of the middle cavity (101), and has a breathing port (401) in communication with the middle cavity (101).

2. The compact breathing trainer according to claim 1, characterized in that: The suction unit (2) comprises: A first adjusting cover (204) is rotatably assembled in the suction chamber (102), and a plurality of the suction outlets (202) are arranged on an inner end plate of the first adjusting cover (204) and are evenly arranged in a circle along the rotation center of the first adjusting cover (204); A first knob (205) is assembled integrally with the first regulating cover (204), and an installation space for the first one-way valve (203) is formed inside the first knob (205); the suction inlet (201) is arranged at an outer end of the first knob (205); an elastic first limiting member (206) installed in the first knob (205); a plurality of first limiting notches (106) corresponding one to one with the suction outlets (202) are provided on the inner wall of the suction chamber (102); when the first knob (205) is rotated, the first limiting member (206) cooperates with any of the first limiting notches (106); The outgoing call unit (3) comprises: A second adjustment cover (304) is rotatably assembled in the exhalation chamber (103), and a plurality of the exhalation inlets (302) are arranged on an inner end plate of the second adjustment cover (304) and are evenly arranged in a circle along the rotation center of the second adjustment cover (304); A second knob (305) is assembled with the second adjustment cover (304) as a whole, and an installation space for the second one-way valve (303) is formed inside the second knob (305); the exhalation outlet (301) is arranged at the outer end of the second knob (305); An elastic second limiting member (306) is installed in the second knob (305), and the inner wall of the exhalation chamber (103) is provided with a plurality of second limiting notches (107) corresponding one to one with the exhalation inlet (302). When the second knob (305) is rotated, the second limiting member (306) cooperates with any of the second limiting notches (107).

3. The compact breathing trainer according to claim 1 or 2, characterized in that: The main housing (1) is a two half-shell assembly structure.

4. The compact breathing trainer according to claim 1 or 2, characterized in that: The inhalation chamber (102) and the exhalation chamber (103) are symmetrically arranged relative to the intermediate chamber (101), and the inhalation unit (2) and the exhalation unit (3) are symmetrically arranged relative to the main housing (1).

5. The compact breathing trainer according to claim 1 or 2, characterized in that: The first one-way valve (203) and the second one-way valve (303) are diaphragm valves.

6. The compact breathing trainer according to claim 2, characterized in that: The first limiting member (206) and the second limiting member (306) adopt ball head plungers and are respectively assembled in the first knob (205) and the second knob (305).

7. The compact breathing trainer according to claim 2, characterized in that: The inhalation outlet (202) and the exhalation inlet (302) are both six circular holes, and the diameters increase successively along the circumferential direction.

8. The compact breathing trainer according to claim 2, characterized in that: A first sealing rib (207) is provided in the circumference of the first adjustment cover (204), and a second sealing rib (307) is provided in the circumference of the second adjustment cover (304).

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