Tire valve

Abstract

The present invention relates to a tire valve, comprising: a tube comprising an inner face, an inner passage defined by the inner face and extending through the large-diameter tube section, and a large-diameter tube section defined by the inner face and extending through the large-diameter tube section; the valve group comprises a sealing part which can be movably inserted into the internal channel and can act to enable the sealing part to abut against the inner surface to block the internal channel or enable the sealing part not to abut against the inner surface to block the internal channel; when the pipe fitting is arranged in a wheel frame in a penetrating mode, the large-diameter pipe section penetrates into an inner space of the wheel frame, and the position, abutting against the inner face, of the sealing part is located in the inner space of the wheel frame.

Description

Technical Field

[0001] This invention relates to an inflation / deflation component, and more particularly to a tire valve. Background Technology

[0002] Tire valves are mounted on the wheel rim and protrude from the rim to inflate or deflate the tire. Existing tire valves typically have a valve stem within a valve seat, and a valve assembly within the valve stem to control the flow of gas, thereby maintaining a specific tire pressure.

[0003] Existing tire valve stems have a large-diameter tube section, which provides ample space for gas flow between the valve and the valve assembly to achieve a larger gas flow rate. However, when conventional tire valves are installed on wheel rims, the large-diameter tube section of the valve stem passes through the rim and extends beyond it. The portion of the valve stem protruding beyond the rim also needs to include a connection section for the inflation device. Therefore, conventional valve stems have a large axial dimension, significantly increasing the overall length of the conventional tire valve and making it more susceptible to breakage due to external forces.

[0004] Therefore, it is necessary to provide a novel and progressive tire valve to solve the above-mentioned problems. Summary of the Invention

[0005] The main objective of this invention is to provide a tire valve that can shorten its overall length and reduce the risk of breakage due to external forces.

[0006] To achieve the above objectives, the present invention provides a tire valve, comprising: a pipe including an inner surface, an internal channel, and a large-diameter pipe section, the internal channel being defined by the inner surface and extending through the large-diameter pipe section; and a valve assembly including a sealing portion movably inserted into the internal channel, operable to cause the sealing portion to abut against the inner surface to block the internal channel, or to cause the sealing portion not to abut against the inner surface without blocking the internal channel; wherein, when the pipe is installed in a wheel rim, the large-diameter pipe section extends into an internal space of the wheel rim, and the sealing portion abuts against the inner surface at a position located within the internal space of the wheel rim.

[0007] The valve assembly includes a valve core, which includes a shaft hole and at least one side hole communicating with the shaft hole, the at least one side hole communicating with the internal channel.

[0008] The fitting further includes a first shoulder protruding from the inner surface, and the valve core further includes a second shoulder, which is movable so that the second shoulder is stopped by the first shoulder.

[0009] When the second shoulder is blocked by the first shoulder, the sealing part abuts against the inner surface and blocks the internal passage.

[0010] The fitting also includes an upper section and a lower section. When the fitting is installed on the wheel rim, the upper section extends out of the wheel rim to connect to an air pumping device, and the lower section includes the large-diameter pipe section and a gas outlet.

[0011] The tire valve further includes a valve stem seal, which is fitted onto one end of the tube; the valve assembly further includes a valve core seal fitted onto the valve core, which can abut against the inner surface to block the internal passage; the valve core extends out of the tube; a fastener is screwed onto the tube; a wheel rim seal is fitted onto the tube and located between the large-diameter pipe section and the fastener; the fastener is used to tighten the tube and force the wheel rim seal to abut against the outer side of the wheel rim.

[0012] The fitting has a removable end cap at one end, and the end cap has at least one through hole communicating with the internal channel.

[0013] The tire valve also includes an elastic element that springs against the valve assembly and the end cap.

[0014] The elastic element is a coiled spring. The valve assembly also includes a shaft. The end cap includes a protrusion. The elastic element is sleeved on the shaft and the protrusion.

[0015] In one axial direction of the pipe fitting, the length of the sleeve shaft is not less than the length of the large-diameter pipe section.

[0016] The beneficial effects of the present invention are as follows: The tire valve of the present invention can shorten the overall length and reduce the risk of breakage due to external forces. Attached Figure Description

[0017] Figure 1 This is a perspective view of an embodiment of the present invention.

[0018] Figure 2 This is an exploded view of an embodiment of the present invention.

[0019] Figure 3 This is another exploded view of an embodiment of the present invention.

[0020] Figures 4 to 5 This is a cross-sectional view of an embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of a tire valve mounted on a wheel rim according to an embodiment of the present invention.

[0022] 1: Tire valve 10: Pipe fittings 11:Inside 12: Internal passage 13: Large diameter pipe section 14: First shoulder 15: Upper section 16: Next section 161: Gas outlet 17: End Cap 171: Through hole 172:convex part 20: Valve assembly 21: Sealing part 22: Valve core 221: Shaft hole 222: Side hole 223: Second shoulder block 23: Valve core seal 24: Sleeve 30: Valve stem seal 40: Fasteners 50: Wheel rim seals 60: Elastic element 100: Wheel rim 110: Interior space Detailed Implementation

[0023] The following examples illustrate possible implementations of the present invention, but are not intended to limit the scope of protection of the present invention.

[0024] Please refer to Figures 1 to 6 This illustration shows an embodiment of the present invention, in which the tire valve 1 includes a tube 10 and a valve assembly 20. The tire valve 1 can be, for example, a Schrader valve, a Presta valve, or an English valve. The tube 10 can be a single, integrally formed component or a multi-piece assembly. The tube may include a valve body and a valve stem, which can be a single, integrally formed component. The valve body is the portion that attaches to a wheel rim, and the valve stem is the portion that connects to the valve body and protrudes beyond the wheel rim.

[0025] The fitting 10 includes an inner surface 11, an internal channel 12, and a large-diameter pipe section 13. The internal channel 12 is defined by the inner surface 11 and extends through the large-diameter pipe section 13. The large-diameter pipe section 13 provides a larger gas flow space between the fitting and the valve assembly 20 to achieve a larger gas flow rate. The valve assembly 20 includes a sealing portion 21, which is movably inserted into the internal channel 12. The valve assembly 20 can be actuated such that the sealing portion 21 abuts against the inner surface 11 to block the internal channel 12, or that the sealing portion 21 does not abut against the inner surface 11 without blocking the internal channel 12. When the fitting 10 is installed in a wheel rim 100, the large-diameter pipe section 13 extends into an internal space 110 of the wheel rim 100, and the sealing portion 21 abuts against the inner surface 11 within the internal space 110 of the wheel rim 100. This eliminates the need for conventional tire valves to have the large-diameter pipe section located outside the wheel rim, thus significantly reducing the overall length of the tire valve and lowering the risk of breakage due to external forces.

[0026] The valve assembly 20 includes a valve core 22, which includes a shaft hole 221 and at least one side hole 222 communicating with the shaft hole 221. The at least one side hole 222 communicates with the internal channel 12. The pipe fitting 10 further includes a first shoulder 14 protruding from the inner surface 11, and the valve core 22 further includes a second shoulder 223. The valve core 22 is movable so that the second shoulder 223 is stopped by the first shoulder 14. When the second shoulder 223 is stopped by the first shoulder 14, the sealing part 21 abuts against the inner surface 11 and blocks the internal channel 12, ensuring that the sealing part 21 can indeed abut against the inner surface 11. The sealing part 21 may be a part of the valve core 22 or a sealing element provided on the valve core 22. The valve assembly 20 may also be other parts of the valve core 22 (e.g., a radial flange with a larger diameter formed below the sealing element) or a sealing element provided on the valve core 22, which stop on the inner surface 11 of the pipe fitting 10 (e.g., a tapered surface of the large-diameter pipe section 13).

[0027] The fitting 10 further includes an upper section 15 and a lower section 16. When the fitting 10 is installed in the wheel rim 100, the upper section 15 extends out of the wheel rim 100 to connect to an air inflator. The lower section 16 includes a large-diameter pipe section 13 and an air outlet 161. Preferably, the large-diameter pipe section 13 is as close as possible to the air outlet 161, thus minimizing the overall length of the tire valve.

[0028] In this embodiment, the tire valve 1 further includes a valve stem seal 30, which is sleeved on one end of the tube 10 and seals the assembly hole of the wheel rim 100. The valve assembly 20 further includes a valve core seal 23 sleeved on the valve core 22, which abuts against the inner surface 11 to block the internal passage 12. The valve core 22 extends out of the tube 10 and can be pressed to open the internal passage 12. A fastener 40 is screwed onto the tube 10, and a wheel rim seal 50 is sleeved on the tube 10 and located between the large-diameter pipe section 13 and the fastener 40. The fastener 40 is used to tighten the tube 10 and force the wheel rim seal 50 to press tightly against the outside of the wheel rim 100, achieving a good airtight effect.

[0029] One end of the fitting 10 may be provided with a removable end cap 17 for easy installation, removal and replacement. The end cap 17 has at least one through hole 171 communicating with the internal channel 12 for inflation and deflation operations. Preferably, the tire valve 1 further includes an elastic member 60, which springs against the valve assembly 20 and the end cap 17 to ensure that the valve assembly 20 normally blocks the internal channel 12. Specifically, the elastic member 60 is a coil spring, the valve assembly 20 further includes a shaft 24 (for example, the shaft 24 is part of the valve core 22), and the end cap 17 includes a protrusion 172. The elastic member 60 is sleeved on the shaft 24 and the protrusion 172. Preferably, in one axial direction of the fitting 10, the length of the shaft 24 is not less than the length of the large-diameter pipe section 13, thereby stably holding the elastic member 60 and contributing to the stable operation of the valve assembly 20.

Claims

1. A tire valve, Its characteristics include: A pipe fitting includes an inner surface, an internal channel, and a large-diameter pipe section, the internal channel being defined by the inner surface and extending through the large-diameter pipe section; and A valve assembly includes a sealing part movably inserted into the internal channel, which can be actuated such that the sealing part abuts against the inner surface to block the internal channel, or such that the sealing part does not abut against the inner surface and does not block the internal channel. When the pipe is installed on a wheel rim, the large-diameter pipe section is inserted into an internal space of the wheel rim, and the sealing part abuts against the inner surface in the internal space of the wheel rim.

2. The tire valve as described in claim 1, characterized in that; The valve assembly includes a valve core, which includes a shaft hole and at least one side hole communicating with the shaft hole, the at least one side hole communicating with the internal channel.

3. The tire valve as described in claim 2, characterized in that; The fitting further includes a first shoulder protruding from the inner surface, and the valve core further includes a second shoulder, which is movable so that the second shoulder is stopped by the first shoulder.

4. The tire valve as described in claim 3, characterized in that; When the second shoulder is blocked by the first shoulder, the sealing part abuts against the inner surface and blocks the internal passage.

5. The tire valve as described in claim 1, characterized in that; The fitting also includes an upper section and a lower section. When the fitting is installed on the wheel rim, the upper section extends out of the wheel rim to connect to an air pumping device, and the lower section includes the large-diameter pipe section and a gas outlet.

6. The tire valve as described in claim 4, characterized in that; The valve assembly also includes a valve stem seal fitted onto one end of the pipe fitting; the valve assembly further includes a valve core seal fitted onto the valve core, the valve core seal being able to abut against the inner surface and block the internal passage; the valve core extends out of the pipe fitting; a fastener is screwed onto the pipe fitting; a wheel rim seal is fitted onto the pipe fitting and located between the large-diameter pipe section and the fastener; the fastener is used to tighten the pipe fitting and force the wheel rim seal to abut against the outer side of the wheel rim.

7. The tire valve as described in any one of claims 1 to 6, characterized in that; The fitting has a removable end cap at one end, and the end cap has at least one through hole communicating with the internal channel.

8. The tire valve as described in claim 7, characterized in that; It also includes an elastic element that springs against the valve assembly and the end cap.

9. The tire valve as described in claim 8, characterized in that; The elastic element is a coiled spring. The valve assembly also includes a shaft. The end cap includes a protrusion. The elastic element is sleeved on the shaft and the protrusion.

10. The tire valve as described in claim 9, characterized in that; In one axial direction of the pipe fitting, the length of the sleeve shaft is not less than the length of the large-diameter pipe section.

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