Protective structure of valve core for high-gas-retention tire

Abstract

The protection structure comprises a cylinder body, a fixing plate is fixed on the outer wall of the bottom end of the cylinder body, a sealing pad is connected to the outer wall of the cylinder body, a rotating groove is formed in the side wall of the top end of the cylinder body, a valve cap is rotationally connected to the inner wall of the top end of the cylinder body, and the valve cap is connected with the cylinder body. A rotating ring is fixed to the outer wall of the valve cap and rotationally connected with the inner wall of the rotating groove, anti-skid lines are arranged on the side wall of the valve cap, a sealing assembly is arranged at the top end of the inner wall of the valve cap and comprises a sealing ring and a sealing block, and the sealing ring is embedded in the side wall of the top end of the valve cap. An extrusion slope is arranged on the side wall of the top end of the valve cap, and the sealing block is embedded in the top end of the valve cap. According to the utility model, the cylinder body is arranged, so that the whole valve core can be protected, and the valve core is prevented from being exposed to the outside, being easily collided and being attached by dust.

Description

Technical Field

[0001] The utility model relates to the technical field of tire accessories, in particular to a protection structure for a valve core of a high air retention tire. Background Art

[0002] A tire valve core is an airtight device for an inflated tire. It is usually configured to controllably allow gas to pass through, so as to introduce or release gas into the inflated tire, thereby controlling the pressure inside the inflated tire and enabling the inflated tire to maintain a normal working air pressure. Usually, in order to prevent the tire valve core from interfering with the tire under normal driving conditions, the tire valve core is usually arranged inside the tire. At the same time, in order to prevent dust and sand from contacting the valve core and causing damage to the mechanical structure of the valve core and being unable to maintain the airtight state, a valve core cap is usually detachably installed at the top of the valve core.

[0003] Currently, in actual use, in order to facilitate inflation and pressure relief of the tire through the valve core, an opening is usually made on the rim to allow the valve core to pass through the rim. At the same time, in order to facilitate tire installation, the opening on the rim is often relatively large, and the entire valve core is exposed to the outside. The existing valve core cap can only protect the top interface of the valve core, and other parts of the valve core are exposed to the environment, making it vulnerable to bumps and dust adhesion. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a protection structure for a valve core of a high air retention tire.

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

[0006] A protection structure for a valve core of a high air retention tire, including a cylinder body. A fixing plate is fixed to the outer wall of the bottom end of the cylinder body. A sealing pad is connected to the outer wall of the cylinder body. A rotating groove is formed in the side wall of the top end of the cylinder body. A valve cap is rotatably connected to the inner wall of the top end of the cylinder body. A rotating ring is fixed to the outer wall of the valve cap, and the rotating ring is rotatably connected to the inner wall of the rotating groove. Anti-slip lines are arranged on the side wall of the valve cap.

[0007] As a further scheme of the utility model: A sealing component is arranged at the top end inner wall of the valve cap, and internal threads are arranged on the inner wall of the valve cap.

[0008] As a further scheme of the utility model: The sealing component includes a sealing ring and a sealing block. The sealing ring is embedded in the side wall of the top end of the valve cap, and an extrusion inclined surface is arranged on the side wall of the top end of the valve cap.

[0009] As a further scheme of the utility model: The extrusion inclined surface is in contact and cooperation with the outer wall of the top end of the sealing ring, and the sealing block is embedded in the top end of the valve cap.

[0010] As a further solution of the present utility model: the inclination angle of the extrusion inclined surface is greater than 50 degrees.

[0011] As a further solution of the present utility model: an anti-theft component is provided on the side wall of the valve cap, and the anti-theft component includes a moving groove and an anti-theft bolt.

[0012] As a further solution of the present utility model: the moving groove is opened on the side wall of the valve cap, the anti-theft bolt is in threaded fit with the inner wall of the moving groove, and the threaded end of the anti-theft bolt protrudes from the inner wall of the valve cap.

[0013] As a further solution of the present utility model: a limiting ring is detachably connected to one end of the moving groove, and the limiting ring is in limiting fit with the anti-theft bolt.

[0014] Compared with the prior art, the present utility model provides a protection structure for a valve core of a high air retention tire, and has the following beneficial effects:

[0015] In the present utility model, by providing a cylinder body, the whole valve core can be protected to avoid the valve core being exposed to the outside and being easily knocked and attached with dust.

[0016] In the present utility model, by providing a sealing component, the valve core can be sealed multiple times to improve the air leakage prevention effect of the valve cap.

[0017] In the present utility model, by providing an anti-theft component, only by screwing out the anti-theft bolt with an external tool can the valve cap be rotated to realize the anti-theft of the device.

[0018] Parts not involved in the device are the same as or can be implemented by the prior art. The structure of the present utility model is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of a protection structure for a valve core of a high air retention tire proposed by the present utility model;

[0020] Figure 2 is a schematic diagram of the internal structure of a protection structure for a valve core of a high air retention tire proposed by the present utility model;

[0021] Figure 3 is a schematic diagram of the structure of a sealing component for a valve core of a high air retention tire proposed by the present utility model;

[0022] Figure 4 is a schematic diagram of the structure of an anti-theft component for a valve core of a high air retention tire proposed by the present utility model.

[0023] In the figure: 1, cylinder body; 2, fixed plate; 3, sealing gasket; 4, valve cap; 5, anti-slip pattern; 6, connecting protrusion; 7, connecting groove; 8, rotating groove; 9, rotating ring; 10, sealing assembly; 11, anti-theft assembly; 12, sealing ring; 13, extrusion inclined surface; 14, sealing block; 15, internal thread; 16, moving groove; 17, anti-theft bolt; 18, limiting ring. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention 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 should not be construed as a limitation to the present invention. Embodiment 1

[0026] A protective structure for a valve core of a high air retention tire, as Figures 1 to 3 shown, includes a cylinder body 1. A fixed plate 2 is fixed on the outer wall of the bottom end of the cylinder body 1. A sealing gasket 3 is connected to the outer wall of the cylinder body 1. The sealing gasket 3 is made of an elastic material such as rubber. The outer wall of the top end of the sealing gasket 3 is in contact and cooperation with the outer wall of the bottom end of the fixed plate 2. A connecting protrusion 6 is fixed on the outer wall of the cylinder body 1. A connecting groove 7 for limiting and cooperating connection with the connecting protrusion 6 is opened on the inner wall of the sealing gasket 3. A rotating groove 8 is opened on the side wall of the top end of the cylinder body 1. A valve cap 4 is rotatably connected to the inner wall of the top end of the cylinder body 1. A rotating ring 9 is fixed on the outer wall of the valve cap 4. The rotating ring 9 is rotatably connected to the inner wall of the rotating groove 8. An anti-slip pattern 5 is provided on the side wall of the valve cap 4. A sealing assembly 10 is provided at the top end inner wall of the valve cap 4. An internal thread 15 is provided on the inner wall of the valve cap 4.

[0027] The sealing assembly 10 includes a sealing ring 12 and a sealing block 14. The sealing ring 12 is embedded in the side wall of the top end of the valve cap 4. An extrusion inclined surface 13 is provided on the side wall of the top end of the valve cap 4. The inclination angle of the extrusion inclined surface 13 is greater than 50 degrees. The extrusion inclined surface 13 is in contact and cooperation with the outer wall of the top end of the sealing ring 12. The sealing block 14 is embedded in the top end of the valve cap 4.

[0028] During use, the entire valve core is inserted into the cylinder body 1. The bottom end of the cylinder body 1 is inserted into the opening on the rim, and the top end of the valve core enters the valve cap 4. Rotate the valve cap 4, and it is threadedly engaged with the outer wall of the top end of the valve core through the internal thread 15. During the screwing process of the valve core and the valve cap 4, the extrusion inclined surface 13 presses the sealing ring 12, causing the sealing ring 12 to be pressed against the outer wall of the valve core for sealing. At the same time, the sealing block 14 enters the groove at the top end of the valve core for secondary sealing. The extrusion inclined surface 13 can increase the pressure on the outer wall of the valve core under the condition that the sealing ring 12 bears the same axial pressure. The fixing plate 2 presses the sealing gasket 3, making the sealing gasket 3 fit against the outer wall of the rim to shield the opening.

[0029] By providing the cylinder body 1, the entire valve core can be protected, preventing the valve core from being exposed to the outside and being easily damaged by bumps and dust adhesion.

[0030] By providing the sealing assembly 10, the valve core can be sealed multiple times, improving the air leakage prevention effect of the valve cap 4. Embodiment 2

[0031] A protective structure for a valve core of a high air retention tire. Based on Embodiment 1, the following improvements are made in this embodiment, as Figure 2 and Figure 4 shown, a theft prevention component 11 is provided on the side wall of the valve cap 4. The theft prevention component 11 includes a moving groove 16 and a theft prevention bolt 17. The moving groove 16 is opened on the side wall of the valve cap 4. The theft prevention bolt 17 is threadedly engaged with the inner wall of the moving groove 16, and the threaded end of the theft prevention bolt 17 protrudes from the inner wall of the valve cap 4. A groove for limiting cooperation with the theft prevention bolt 17 is provided on the outer wall of the valve core. One end of the moving groove 16 is detachably connected with a limiting ring 18, and the limiting ring 18 is in limiting cooperation with the theft prevention bolt 17.

[0032] After the valve cap 4 and the valve core are fully screwed together, an external tool is used to pass through the limiting ring 18 and insert it into the moving groove 16, and the theft prevention bolt 17 is rotated to make the theft prevention bolt 17 insert into the valve cap 4. The valve cap 4 is limited by the cooperation between the theft prevention bolt 17 and the groove on the outer wall of the valve core. Only by using an external tool to unscrew the theft prevention bolt 17 can the valve cap 4 be rotated to achieve the theft prevention function. The limiting ring 18 restricts the theft prevention bolt 17, making the theft prevention bolt 17 can only move in the moving groove 16 to prevent the loss of the theft prevention bolt 17.

[0033] By providing the theft prevention component 11, only by using an external tool to unscrew the theft prevention bolt 17 can the valve cap 4 be rotated to achieve theft prevention of the device.

[0034] Working principle: When in use, the whole valve core is inserted into the cylinder body 1. The bottom end of the cylinder body 1 is inserted into the opening on the rim, and the top end of the valve core enters the valve cap 4. Rotate the valve cap 4, and it is screwed with the outer wall thread of the top end of the valve core through the internal thread 15. During the screwing process of the valve core and the valve cap 4, the extrusion inclined surface 13 extrudes the sealing ring 12, making the sealing ring 12 extrude and seal with the outer wall of the valve core. At the same time, the sealing block 14 enters the groove at the top end of the valve core for secondary sealing. The extrusion inclined surface 13 can increase the pressure on the outer wall of the valve core under the condition that the sealing ring 12 bears the same axial pressure. The fixing plate 2 extrudes the sealing gasket 3, making the sealing gasket 3 fit with the outer wall of the rim to cover the opening. When the valve cap 4 is completely screwed with the valve core, use an external tool to pass through the limiting ring 18 and insert it into the moving groove 16, and rotate the anti-theft bolt 17 to make the anti-theft bolt 17 insert into the valve cap 4. The valve cap 4 is limited by the cooperation of the anti-theft bolt 17 and the groove on the outer wall of the valve core. Only by screwing out the anti-theft bolt 17 with an external tool can the valve cap 4 be rotated to achieve the anti-theft function. The limiting ring 18 limits the anti-theft bolt 17, making the anti-theft bolt 17 can only move in the moving groove 16 to avoid the loss of the anti-theft bolt 17.

[0035] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A protective structure for a valve core of a high-pressure tire, comprising a cylinder (1), characterized in that: A fixing plate (2) is fixed to the outer wall of the bottom end of the cylinder (1), a sealing pad (3) is connected to the outer wall of the cylinder (1), a rotating groove (8) is provided on the side wall of the top end of the cylinder (1), a valve cap (4) is rotatably connected to the inner wall of the top end of the cylinder (1), a rotating ring (9) is fixed to the outer wall of the valve cap (4), the rotating ring (9) is rotatably connected to the inner wall of the rotating groove (8), and an anti-slip pattern (5) is provided on the side wall of the valve cap (4).

2. The protective structure of the valve core for a high-retention tire according to claim 1, characterized in that: A sealing assembly (10) is provided at the top end of the inner wall of the valve cap (4), and an internal thread (15) is provided on the inner wall of the valve cap (4).

3. The protective structure of the valve core for a high-retention tire according to claim 2, characterized in that: The sealing assembly (10) comprises a sealing ring (12) and a sealing block (14); the sealing ring (12) is embedded in the top end side wall of the valve cap (4); and the top end side wall of the valve cap (4) is provided with an extrusion inclined surface (13).

4. The protective structure of the valve core for a high-retention tire according to claim 3, characterized in that: The extrusion slope (13) is in contact with the outer wall of the top end of the sealing ring (12), and the sealing block (14) is embedded in the top end of the valve cap (4).

5. The protective structure of the valve core for a high-retention tire according to claim 3, characterized in that: The inclination angle of the extrusion slope (13) is greater than 50 degrees.

6. The protective structure of the valve core for a high-retention tire according to claim 1, characterized in that: The side wall of the valve cap (4) is provided with an anti-theft component (11), and the anti-theft component (11) comprises a moving groove (16) and an anti-theft bolt (17).

7. The protective structure of the valve core for a high-retention tire according to claim 6, characterized in that: The movable groove (16) is formed on the side wall of the valve cap (4), the anti-theft bolt (17) is threadedly engaged with the inner wall of the movable groove (16), and the threaded end of the anti-theft bolt (17) protrudes from the inner wall of the valve cap (4).

8. The protective structure of the valve core for a high-retention tire according to claim 7, characterized in that: One end of the movable groove (16) is detachably connected to a limiting ring (18), and the limiting ring (18) is limitedly matched with the anti-theft bolt (17).

Images