Anti-collision air leakage type valve plug

Abstract

The utility model relates to an anti-collision air leakage type valve plug which comprises an outer shell, a connecting part and an inner shell, the outer shell is connected with the inner shell through the connecting part, a middle cavity is formed among the outer shell, the inner shell and the connecting part, the outer shell is separated from the inner shell, and the outer shell is located outside the inner shell; the middle cavity is located outside the inner shell. The inner shell comprises a shell body and a sealing piece, the sealing piece is in sealing connection with the end of the shell body, the sealing piece is located in the inner shell, and the sealing piece is separated from the outer shell; a sealing cavity is formed in the sealing piece and communicated with the middle cavity, and the sealing cavity is separated from the interior of the inner shell. According to the anti-collision air leakage type valve plug, air leakage is not prone to occurring after the valve plug is collided, it is ensured that pneumatic components can be normally used, and the situation that the valve plug is damaged after being collided is reduced.

Description

Technical Field

[0001] The utility model relates to the field of valve plugs, in particular to an anti-collision and air leakage type valve plug. Background Art

[0002] Valve plug is a commonly used sealing component, which is widely used in the fields of automobiles, pneumatic components and rubber products. It plays an important role in pneumatic components and is used to seal pneumatic components.

[0003] During use, workers or other parts often collide with the valve plug, causing the position of the valve plug to change, resulting in air leakage in the pneumatic components sealed by the valve plug, causing the pneumatic components to fail to work normally. This problem is now urgently needed. Utility Model Content

[0004] The purpose of the utility model is to provide a collision-proof and air-leakage-proof valve plug to solve the above problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An anti-collision and air leakage type valve plug comprises an outer shell, a connecting part and an inner shell, wherein the outer shell is connected to the inner shell through the connecting part, an intermediate cavity is provided between the outer shell, the inner shell and the connecting part, the outer shell is separated from the inner shell, and the outer shell is located outside the inner shell;

[0007] The intermediate cavity is located outside the inner shell;

[0008] The inner shell comprises a shell and a seal, wherein the seal is sealed and connected to the end of the shell, the seal is located inside the inner shell, and the seal is separated from the outer shell;

[0009] The sealing member is provided with a sealing cavity, the sealing cavity is communicated with the middle cavity, and the sealing cavity is separated from the interior of the inner shell.

[0010] Furthermore, the outer shell is made of a flexible material, and one end of the outer shell is connected to one end of the inner shell through a connecting portion.

[0011] Furthermore, the material of the outer shell is specifically silicone rubber, and one end of the outer shell and one end of the inner shell are both sealed and connected to the connecting part.

[0012] Furthermore, the end surface of the connecting portion is on the same plane as the end surfaces of the outer shell and the inner shell.

[0013] Furthermore, the shell is provided with an internal thread, and the internal thread is located at an end of the inner shell away from the sealing member.

[0014] Furthermore, a hollow portion is provided at one end of the inner shell away from the sealing member, the cross section of the inner shell is specifically in the shape of a circular ring, and the internal thread is separated from the sealing member.

[0015] Furthermore, the sealing member includes a first portion and a second portion, the sealing cavity is located inside the inner shell, and the sealing member corresponds to the position of the internal thread.

[0016] Further, the second part is sealed and connected to the end of the inner shell through the first part, the second part is separated from the inner shell, and the first part and the second part are located outside the sealed cavity.

[0017] Furthermore, the cross-sectional size of the second part is greater than that of the first part, the first part and the second part are both made of flexible materials, the connection between the first part and the second part is arc-shaped, and the cross-sectional size of the second part matches the inner cavity size of the inner shell.

[0018] Furthermore, the cross section of the second portion is specifically circular, the cross section of the first portion is specifically circular, and the outer wall of the second portion contacts the inner wall of the inner shell.

[0019] The beneficial effects of the utility model are: providing an anti-collision and air leakage type valve plug, through the outer shell, connecting part, inner shell, shell body and sealing part used in conjunction with each other, to make an anti-collision and air leakage type valve plug to replace the traditional valve plug, so that when the valve plug is collided during use, the outer shell will be deformed, and the middle cavity will be pressed to increase the volume of the sealing cavity, and the cavity of the inner shell will be sealed to avoid leakage of pneumatic components sealed by the valve plug, and the effect of being reset after the collision object is away from the outer shell, the valve plug is not easy to leak after being collided, ensuring that the pneumatic components can be used normally and reducing the damage of the valve plug after being collided. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is an axonometric diagram of the overall structure of an anti-collision and air leakage type valve plug.

[0021] Figure 2 The utility model is a partial structural axonometric diagram of an anti-collision and air leakage type valve plug.

[0022] Figure 3 The utility model is a cross-sectional view of the overall structure of an anti-collision and air leakage type valve plug.

[0023] In the figure: 1, outer shell; 2, middle cavity; 3, connecting part; 4, inner shell; 5, shell body; 6, internal thread; 7, sealing member; 8, first part; 9, second part; 10, sealing cavity. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. The same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described in the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0025] In the description of the present utility model, it is necessary to understand that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features, and in the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] refer to Figures 1 to 3 , a collision-proof air leakage type valve plug, comprising an outer shell 1, a connecting part 3 and an inner shell 4, wherein the outer shell 1 is connected to the inner shell 4 through the connecting part 3 to fix the relative positions of the two, an intermediate cavity 2 is provided between the outer shell 1, the inner shell 4 and the connecting part 3 to contain liquid or gas, buffer the collision force of the outer shell 1, and drive the outer shell 1 to recover after the collision force disappears, and at the same time, after the outer shell 1 is hit, gas or liquid can be passed into the sealing member 7 to expand and seal the inner shell 4, the outer shell 1 and the inner shell 4 are separated, the outer shell 1 is located outside the inner shell 4, and the outer shell 1 is used to protect the inner shell 4;

[0027] The middle cavity 2 is located outside the inner shell 4 and is used to buffer the force exerted on the outer shell 1;

[0028] The inner shell 4 includes a shell 5 and a seal 7. The seal 7 is sealed and connected to the end of the shell 5. The seal 7 is located inside the inner shell 4 and is used to seal the inner shell 4 when the outer shell 1 is subjected to force. The seal 7 is separated from the outer shell 1 to avoid interference.

[0029] The sealing member 7 is provided with a sealing cavity 10 for containing the gas or liquid provided in the middle cavity 2 . The sealing cavity 10 is communicated with the middle cavity 2 and serves as a passage for the gas or liquid. The sealing cavity 10 is separated from the interior of the inner shell 4 .

[0030] The outer shell 1 is made of a flexible material to ensure that the outer shell 1 can recover when no force is applied. One end of the outer shell 1 is connected to one end of the inner shell 4 via a connecting portion 3 .

[0031] The material of the outer shell 1 is specifically silicone rubber, which is used to ensure that the outer shell 1 can recover when no force is applied. One end of the outer shell 1 and one end of the inner shell 4 are both sealed with the connecting part 3 to prevent gas or liquid leakage in the intermediate cavity 2 and the sealed cavity 10.

[0032] The end surface of the connecting portion 3 is on the same plane as the end surfaces of the outer shell 1 and the inner shell 4 .

[0033] The housing 5 is provided with an internal thread 6 , which is located at an end of the inner shell 4 away from the sealing member 7 , for convenient connection with pneumatic components.

[0034] The inner shell 4 is provided with a hollow portion at one end away from the seal 7 to avoid interference with the connected pneumatic components. The cross section of the inner shell 4 is specifically annular, and the internal thread 6 is separated from the seal 7 .

[0035] The sealing member 7 includes a first portion 8 and a second portion 9 . The sealing cavity 10 is located inside the inner shell 4 and is used to seal the inner shell 4 when the outer shell 1 is subjected to force. The sealing member 7 corresponds to the position of the internal thread 6 .

[0036] The second part 9 is sealed and connected to the end of the inner shell 4 through the first part 8. The second part 9 is separated from the inner shell 4. The first part 8 and the second part 9 are located outside the sealing cavity 10, and are used to allow gas or liquid to pass into the sealing member 7 after the outer shell 1 is hit, so that it expands and seals the inner shell 4.

[0037] The cross-sectional dimension of the second part 9 is larger than that of the first part 8. Both the first part 8 and the second part 9 are made of flexible materials and are used to allow gas or liquid to pass into the sealing member 7 after the outer shell 1 is hit, so that the sealing member 7 expands and seals the inner shell 4. The connection between the first part 8 and the second part 9 is in an arc shape, and the cross-sectional dimension of the second part 9 matches the inner cavity dimension of the inner shell 4.

[0038] The cross section of the second part 9 is specifically circular, and the cross section of the first part 8 is also specifically circular. The outer wall of the second part 9 contacts the inner wall of the inner shell 4, so that gas or liquid can be passed into the sealing member 7 after the outer shell 1 is hit, so that it expands and seals the inner shell 4.

[0039] The working principle of the utility model is as follows: before using an anti-collision and air leakage type valve plug, the middle cavity 2 of the anti-collision and air leakage type valve plug is filled with liquid or gas, and then the middle cavity 2 is sealed; when using an anti-collision and air leakage type valve plug: the operator manually installs the valve plug on the pneumatic component, and connects the internal thread 6 of the inner shell 4 with the thread of the pneumatic component, and at this time, the second part 9 is close to the air outlet of the pneumatic component; when the valve plug is collided, the shape of the outer shell 1 changes, so that the outer shell 1 partially compresses the middle cavity 2, and during this process, the liquid or gas in the middle cavity 2 enters the sealing cavity 10, so that the first part 8 and the second part 9 expand, so that the sealing member 7 seals the cavity of the inner shell 4, thereby preventing the gas of the pneumatic component from leaking through the inner shell 4; when the collision object leaves the outer shell 1, the outer shell 1 is reset, so that the sealing cavity 10 is reset, and at the same time, the outer shell 1 is prevented from being damaged during the collision; the above process is maintained until the work is completed.

[0040] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field of the present invention, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A collision-proof and air-leakage-proof valve plug, characterized in that: The invention comprises an outer shell (1), a connecting portion (3) and an inner shell (4), wherein the outer shell (1) is connected to the inner shell (4) via the connecting portion (3), an intermediate cavity (2) is provided between the outer shell (1), the inner shell (4) and the connecting portion (3), the outer shell (1) and the inner shell (4) are separated, and the outer shell (1) is located outside the inner shell (4); The intermediate cavity (2) is located outside the inner shell (4); The inner shell (4) comprises a shell (5) and a sealing member (7), wherein the sealing member (7) is sealedly connected to an end of the shell (5), the sealing member (7) is located inside the inner shell (4), and the sealing member (7) is separated from the outer shell (1); The sealing element (7) is provided with a sealing cavity (10), the sealing cavity (10) is communicated with the middle cavity (2), and the sealing cavity (10) is separated from the interior of the inner shell (4).

2. The anti-collision and air leakage type valve plug according to claim 1, characterized in that: The outer shell (1) is made of a flexible material, and one end of the outer shell (1) is connected to one end of the inner shell (4) via a connecting portion (3).

3. The anti-collision and air leakage type valve plug according to claim 2, characterized in that: The material of the outer shell (1) is specifically silicone rubber, and one end of the outer shell (1) and one end of the inner shell (4) are both sealedly connected to the connecting portion (3).

4. The anti-collision and air leakage type valve plug according to claim 3 is characterized in that: The end surface of the connecting portion (3) is on the same plane as the end surfaces of the outer shell (1) and the inner shell (4).

5. The anti-collision and air leakage type valve plug according to claim 1, characterized in that: The shell (5) is provided with an internal thread (6), and the internal thread (6) is located at an end of the inner shell (4) away from the sealing member (7).

6. The anti-collision and air leakage type valve plug according to claim 5, characterized in that: A hollow portion is provided at one end of the inner shell (4) away from the sealing member (7); the cross section of the inner shell (4) is specifically in the shape of a circular ring; and the internal thread (6) is separated from the sealing member (7).

7. The anti-collision and air leakage type valve plug according to claim 1, characterized in that: The sealing member (7) comprises a first part (8) and a second part (9); the sealing cavity (10) is located inside the inner shell (4); and the sealing member (7) corresponds to the position of the internal thread (6).

8. The anti-collision and air leakage type valve plug according to claim 7, characterized in that: The second part (9) is sealed and connected to the end of the inner shell (4) through the first part (8), the second part (9) is separated from the inner shell (4), and the first part (8) and the second part (9) are located outside the sealed cavity (10).

9. The anti-collision and air leakage type valve plug according to claim 8, characterized in that: The cross-sectional dimensions of the second part (9) are greater than the cross-sectional dimensions of the first part (8); both the first part (8) and the second part (9) are made of flexible materials; the connection between the first part (8) and the second part (9) is in an arc shape; and the cross-sectional dimensions of the second part (9) match the inner cavity dimensions of the inner shell (4).

10. The anti-collision and air leakage type valve plug according to claim 9, characterized in that: The cross section of the second part (9) is specifically circular, and the cross section of the first part (8) is also specifically circular. The outer wall of the second part (9) contacts the inner wall of the inner shell (4).

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