Exhaust valve, exhaust valve assembly and artificial limb

Abstract

The utility model provides an exhaust valve, an exhaust valve assembly and an artificial limb, and the exhaust valve assembly comprises a lock nut which is provided with a mounting hole; the zipper body is arranged outside the lock nut in a sleeving manner; the plug is mounted at the bottom end of the mounting hole; the valve core body is arranged in the mounting hole and is positioned above the plug; the valve element body is of a pipe body structure. A communicating hole is formed in the valve core body; the valve core shaft is arranged in the valve core body, one end of the valve core shaft and the plug are arranged at a certain distance, and the other end of the valve core shaft is a free end; the valve element cap is connected with the end, away from the plug, of the valve element body. And the valve core cap is elastically connected with the inner wall surface of the mounting hole. According to the structure, the exhaust function can be achieved after the neck bush is sleeved with the receiving cavity, and the firmness of the connecting state of the neck bush and the receiving cavity can be effectively guaranteed. When the neck bush and the receiving cavity need to be separated, the air inflation function can be achieved through the exhaust valve, and then rapid separation of the neck bush and the receiving cavity is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of artificial feet, and more particularly, relates to an exhaust valve, an exhaust valve assembly and an artificial limb. Background Art

[0002] A prosthesis, also known as a "prosthetic limb," is an artificial device designed and fabricated using engineering techniques to replace amputees or those with incomplete limb loss. Its primary function is to replace some of the functions of a lost limb, allowing amputees to regain a certain level of independence and work ability. It is suitable for amputees who have lost a limb due to illness, traffic accidents, industrial accidents, sports injuries, and other reasons.

[0003] The existing prosthesis generally includes a receiving cavity and an inner sleeve, wherein the inner sleeve is put on the residual limb and then put into the receiving cavity. There is a problem of unstable connection state when the inner sleeve is directly put into the receiving cavity. Summary of the Invention

[0004] The purpose of the present invention is to provide an exhaust valve, an exhaust valve assembly and a prosthesis, aiming to solve the defect in the prior art that the inner sleeve is directly inserted into the receiving cavity and the connection state is unstable.

[0005] To achieve the above object, the present invention adopts a technical solution of providing an exhaust valve, comprising:

[0006] A lock nut, provided with a mounting hole;

[0007] A zipper body, sleeved on the outside of the lock nut;

[0008] Plug, installed at the bottom end of the mounting hole;

[0009] The valve core body is arranged in the mounting hole and is located above the plug; the valve core body is a tubular structure; a communicating hole is provided on the valve core body;

[0010] A valve core shaft is disposed in the valve core body, one end of the valve core shaft is spaced a certain distance from the plug, and the other end is a free end;

[0011] The valve core cap is connected to the end of the valve core body away from the plug; the valve core cap is elastically connected to the inner wall surface of the mounting hole.

[0012] Preferably, the valve core cap is connected to the inner wall surface of the mounting hole through the second spring.

[0013] Preferably, the second spring is arranged in the mounting hole and is located in the space between the side surface of the valve core cap and the inner wall surface of the mounting hole.

[0014] Preferably, the plug is provided with a receiving groove for accommodating the valve core body; a column is provided in the middle position of the receiving groove; and a ventilation gap connected to the receiving groove is provided on the side of the plug.

[0015] Preferably, a first sealing ring is provided on the valve core shaft, and the valve core shaft is in sealing contact with the inner wall surface of the valve core body through the first sealing ring.

[0016] Preferably, it also includes a fastening ring sleeved on the outside of the zipper body.

[0017] An exhaust valve assembly, characterized by comprising an exhaust valve as described in any one of the above items.

[0018] Preferably, the utility model further comprises a first wrench adapted to the fastening ring.

[0019] Preferably, it also includes an internal wrench connected to the lower end of the lock nut.

[0020] A prosthesis comprises the exhaust valve as described in any one of the above items and / or the exhaust valve assembly as described in any one of the above items.

[0021] The beneficial effects of the exhaust valve and prosthesis provided by the present invention are that, compared with the prior art, the structure provided by the present invention can realize the exhaust function after the inner sleeve is inserted into the receiving cavity, effectively ensuring the secure connection between the inner sleeve and the receiving cavity. When the inner sleeve and the receiving cavity need to be separated, the exhaust valve can also realize the inflation function, thereby achieving rapid separation of the inner sleeve and the receiving cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the structure of an exhaust valve provided in an embodiment of the present invention Figure 1 ;

[0024] Figure 2 A schematic diagram of the structure of an exhaust valve provided in an embodiment of the present invention Figure 2 ;

[0025] Figure 3 A schematic diagram of the structure of an exhaust valve provided in an embodiment of the present invention Figure 3 ;

[0026] Figure 4 for Figure 3Schematic diagram of the cross-section structure along BB

[0027] Figure 5 A schematic structural diagram of a valve core used in an exhaust valve provided in an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of the explosion structure of an exhaust valve provided in an embodiment of the present invention;

[0029] Figure 7 A schematic diagram of the explosion structure of another exhaust valve provided in an embodiment of the present invention.

[0030] 1. First wrench; 2. Internal wrench; 3. Lock nut; 31. Groove structure; 32. Vent groove; 4. Valve core; 41. Valve core cap; 42. Valve core body; 421. Connecting hole; 43. Valve core shaft; 5. Plug; 51. Receiving groove; 52. Cylinder; 53. Vent notch; 6. Zipper body; 7. Fastening ring; 9. First spring; 10. Second spring; 101. Second sealing ring; 102. First sealing ring. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] Please also refer to Figures 1 to 7 The exhaust valve provided by the present invention will now be described. The exhaust valve is used to be arranged between the inner sleeve and the receiving cavity. Specifically, the inner sleeve is sleeved on the residual limb, and the inner sleeve is then sleeved into the receiving cavity, and the exhaust valve is arranged in the space between the inner sleeve and the receiving cavity. The exhaust valve includes a lock nut 3, a zipper body 6, a plug 5, and a valve core 4. The valve core 4 is composed of a valve core body 42, a valve core shaft 43, and a valve core cap 41. The lock nut 3 is provided with a mounting hole. The zipper body 6 is sleeved on the outside of the lock nut 3. The zipper body 6 is connected to the inner sleeve and the receiving cavity at the same time. The plug 5 is installed in the mounting hole. The valve core body 42 is arranged in the mounting hole and is located above the plug 5. The valve core body 42 is a tubular structure, and a connecting hole 421 is provided on the valve core body 42. The valve core shaft 43 is arranged in the valve core body 42, and one end of the valve core shaft 43 is arranged at a certain distance from the plug 5, and the other end is a free end. The valve core shaft 43 is sealed against the valve core body 42 via a first sealing ring. The valve core cap 41 is connected to the end of the valve core body 42 facing away from the plug 5. The valve core cap 41 is elastically connected to the inner wall of the mounting hole. Multiple ventilation grooves 32 are provided on the inner wall of the top end of the mounting hole. A groove structure 31 is provided on the outer side of the lock nut 3.

[0033] Compared with existing technologies, the exhaust valve provided by the present invention can realize the exhaust function after the inner sleeve is inserted into the receiving cavity, effectively ensuring the firmness of the connection between the inner sleeve and the receiving cavity. When the inner sleeve and the receiving cavity need to be separated, the exhaust valve can also realize the inflation function, thereby achieving rapid separation of the inner sleeve and the receiving cavity.

[0034] As a specific implementation of the embodiment of the present invention, see Figures 1 to 7 , the valve core cap 41 is connected to the inner wall surface of the mounting hole through the second spring 10. Specifically. The second spring 10 is arranged in the mounting hole, and is located in the space between the side of the valve core cap 41 and the inner wall surface of the mounting hole. One end of the second spring 10 is in contact with the valve core cap 41, and the other end is in contact with the lock nut 3. A first spring 9 is provided on the valve core shaft 43. The lower end of the first spring 9 abuts against the valve core shaft 43, and the upper end abuts against the inner wall surface of the valve core body 42. The elastic deformation direction of the first spring 9 coincides with the axial direction of the valve core shaft 43. The first spring 9 is used to push the valve core shaft 43 forward.

[0035] As a specific implementation of an embodiment of the present invention, a second sealing ring 101 is provided on the inner wall surface of the mounting hole, and the mounting hole is sealed with the outer surface of the valve core body 42 through the second sealing ring 101. A first sealing ring 102 is provided on the valve core shaft 43, and the valve core shaft 43 is sealed with the inner wall surface of the valve core body 42 through the first sealing ring 102.

[0036] As a specific embodiment of the present invention, the plug 5 is provided with a receiving groove 51 for accommodating the valve core body 42; a column 52 is provided in the middle of the receiving groove 51; and a venting notch 53 is provided on the side of the plug 5, communicating with the receiving groove 51. The column 52 is located directly below the valve core shaft 43.

[0037] As a specific implementation of the embodiment of the present invention, please refer to Figures 1 to 7 The exhaust valve further comprises a fastening ring 7 sleeved on the outside of the zipper body 6. The fastening ring 7 can be used to apply a force, thereby achieving the application of force to the zipper body 6.

[0038] In this embodiment, the fastening ring 7 is provided with an adapting portion. Preferably, the adapting portion is disposed on the outer side of the fastening ring 7. The adapting portion is an adapting groove. The exhaust valve also includes a first wrench 1. The first wrench 1 is provided with an adapting hole. The adapting hole and the adapting groove match to enable the first wrench 1 to be mounted on the fastening ring 7. When a force is applied to the first wrench 1, the force also acts on the fastening ring 7. The first wrench 7 is used to provide a twisting action.

[0039] Gas flow process 1: The valve core cap 41 is subjected to force, driving the valve core body 42 and the valve core shaft 43 to move downward simultaneously. When they move to a certain position, the lower end surface of the valve core shaft 43 contacts the upper end surface of the column 52. The valve core shaft 43 is subjected to force, the first spring 9 is compressed, and the valve core shaft 43 is separated from the valve core body 42. The gas flow path is: outside the device --- vent groove 32 --- space between the valve core body 42 and the lock nut 3 --- communicating hole 421 --- gap between the valve core shaft 43 and the valve core body 42 --- accommodating groove 51 --- vent notch 53 --- gap between the plug 5 and the lock nut 3 --- outside the device. Illustratively, the gas enters the space between the valve core body 42 and the lock nut 3 through the vent groove 32, and then enters the valve core body 42 through the connecting hole 421, wherein the valve core shaft 43 creates a gap relative to the valve core body 42 under the elastic force of the first spring 9, and the gas flows into the receiving groove 51 along the gap, and then flows from the receiving groove 51 through the vent notch 53 and the gap between the plug 5 and the lock nut 3 to the outside of the device.

[0040] Gas flow process 2: Valve core shaft 43 is sealed with valve core body 42. There is a gap between valve core body 42 and lock nut 3. Gas flow path: outside the device --- gap between plug 5 and lock nut 3 -- vent notch 53 -- accommodating groove 51 -- gap between valve core body 42 and lock nut 3 -- space between valve core body 42 and lock nut 3 -- vent groove 32 -- outside the device.

[0041] As a specific implementation of the embodiment of the present invention, please refer to Figures 1 to 7 , exhaust valve assembly: includes an exhaust valve as described in any one of the above items, and also includes an internal wrench 2 and a first wrench 1. The mold assembly makes it convenient to adjust the use state of the exhaust valve by setting the internal wrench 2. That is, by applying a force to the internal wrench 2, the exhaust valve can be put into an exhaust state or a ventilation state. It also includes a first wrench 1 adapted to the fastening ring 7. The internal wrench 2 is connected to the lower end of the lock nut 3. The internal wrench 2 is arranged at one end of the mounting hole; the bottom end of the plug 5 contacts the upper end surface of the internal wrench 2.

[0042] The present invention further provides a prosthesis comprising the exhaust valve as described in any one of the above items and / or the exhaust valve assembly as described in any one of the above items.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An exhaust valve, characterized in that: It is arranged between the inner sleeve and the receiving cavity, and includes: A lock nut (3) is provided with a mounting hole; A zipper body (6) is sleeved outside the lock nut (3); A plug (5) is installed at the bottom end of the mounting hole; The valve core body (42) is arranged in the installation hole and is located above the plug (5); the valve core body (42) is a tubular structure; the valve core body (42) is provided with a communication hole (421); A valve core shaft (43) is disposed in the valve core body (42), one end of the valve core shaft (43) is spaced a certain distance from the plug (5), and the other end is a free end; The valve core cap (41) is connected to the end of the valve core body (42) away from the plug (5); the valve core cap (41) is elastically connected to the inner wall surface of the mounting hole.

2. An exhaust valve according to claim 1, characterized in that: The valve core cap (41) is connected to the inner wall surface of the mounting hole via a second spring (10).

3. An exhaust valve according to claim 2, characterized in that: The second spring (10) is arranged in the mounting hole and is located in the space between the side surface of the valve core cap (41) and the inner wall surface of the mounting hole.

4. An exhaust valve according to claim 1, characterized in that: The plug (5) is provided with a receiving groove (51) for receiving the valve core body (42); a column (52) is provided in the middle of the receiving groove (51); and a venting notch (53) communicating with the receiving groove (51) is provided on the side of the plug (5).

5. An exhaust valve according to claim 1, characterized in that: A first sealing ring (102) is provided on the valve core shaft (43), and the valve core shaft (43) is in sealing contact with the inner wall surface of the valve core body (42) through the first sealing ring (102).

6. An exhaust valve according to claim 1, characterized in that: It also includes a fastening ring (7) sleeved outside the zipper body (6).

7. An exhaust valve assembly, characterized in that: The invention comprises an exhaust valve as described in any one of claims 1 to 6.

8. An exhaust valve assembly according to claim 7, characterized in that: It also includes a first wrench (1) adapted to the fastening ring (7).

9. An exhaust valve assembly according to claim 7 or 8, characterized in that: It also includes an inner wrench (2) connected to the lower end of the lock nut (3).

10. A prosthesis, characterized in that: It comprises the exhaust valve according to any one of claims 1 to 6 and / or the exhaust valve assembly according to any one of claims 7 to 9.

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