Tire valve and valve thereof

Abstract

The invention relates to a tire valve and a valve piece thereof. The valve piece comprises a valve body, the valve body comprises a peripheral wall, the peripheral wall comprises a first end and a second end, the peripheral wall encloses a shaft hole and is provided with at least one side hole communicated with the shaft hole, and the shaft hole is provided with an opening at the first end; the head part is axially and fixedly connected with the second end of the peripheral wall into a whole, and a groove is formed in the peripheral surface of the head part; and the sealing piece is embedded in the groove, radially protrudes out of the groove, and is used for abutting against an inner surface of the tire valve in a sealing manner. When the valve part is located at a sealing position, the sealing part abuts against the inner face of a pipe fitting in a sealed mode to block a channel of the pipe fitting, and when the valve part is located at the conducting position, the sealing part is separated from the inner face of the pipe fitting and does not block the channel.

Description

Technical Field

[0001] The invention relates to a tire inflation and deflation component, in particular to a tire air nozzle and a valve component thereof. Background Art

[0002] The tire valve is installed on the wheel frame and protrudes from the wheel frame for inflation or deflation. For example, the current bicycle tires have two types, "tube-type" and "tubeless", both of which require a valve to achieve the purpose of inflation or deflation. The conventional tire valve mainly has a valve stem in a valve seat to control the conduction or sealing of gas, thereby making the tire have a certain tire pressure.

[0003] The inflating and deflation flow rates of conventional air nozzles are relatively small, and the inflating and deflation times are relatively long. In addition, the valve stem or valve assembly of conventional air nozzles is relatively complex in structure and relatively large in size, which is relatively difficult and time-consuming to process, manufacture, and assemble. In addition, all conventional air nozzles can only be used as a simple inflating or deflation channel for a tire, and cannot be used as an adapter to be transferred to a different conventional air nozzle for use (for example, when the valve stem is not fully sealed or does not have a valve stem).

[0004] In addition, the existing valve core space does not have a large enough channel to allow the injection of sealant to prevent air leakage when the integrity of the tire is compromised. Therefore, the sealant needs to be injected into the tire before the valve core is assembled to the wheel frame, or the valve core needs to be removed to allow the sealant to enter the tire through the valve stem. However, in both cases, over time and use, the sealant will enter the valve core and block the valve core and prevent it from functioning properly, resulting in the need for frequent replacement of the valve core.

[0005] In addition, the valve pin of the existing valve core extends beyond the valve core and is therefore susceptible to damage, especially when a hand-held pump is used to inflate the tire and a side load is applied to the valve core assembly. In this case, the valve pin can easily break or become damaged, resulting in failure.

[0006] Therefore, it is necessary to provide a novel and progressive tire valve and valve member thereof to solve the above-mentioned problems. Summary of the invention

[0007] The main purpose of the present invention is to provide a tire air valve and a valve member thereof, which are simple to manufacture, low in cost, quick to assemble and disassemble, small in size, stable in structure and high in strength.

[0008] To achieve the above-mentioned purpose, the present invention provides a valve member for a tire air valve, comprising: a valve body, comprising a circumferential wall, the circumferential wall comprising a first end and a second end, the circumferential wall surrounding an axial hole and provided with at least one side hole connected to the axial hole, the axial hole having an opening at the first end; a head, axially fixedly connected to the second end of the circumferential wall as a whole, and provided with a groove on the circumferential surface; and a sealing member, embedded in the groove and radially protruding from the groove, for sealingly abutting against an inner surface of the tire air valve.

[0009] As a preferred embodiment of the above technical solution, preferably, the peripheral wall further includes a large diameter section and a small diameter section, the small diameter section is connected between the large diameter section and the head, and the large diameter section radially protrudes from the small diameter section.

[0010] As a preferred embodiment of the above technical solution, preferably, the valve body further comprises at least one reinforcing rib, and the at least one reinforcing rib extends between the large diameter section and the small diameter section.

[0011] As a preferred embodiment of the above technical solution, preferably, in the axial direction of the valve body, the size of the at least one side hole is at least one third of the axial size of the valve body; the total area of ​​the at least one side hole is not less than the total area of ​​the outer circumferential surface of the small diameter section.

[0012] As a preferred embodiment of the above technical solution, preferably, the head includes a protrusion extending into the axial hole toward the first end of the peripheral wall, and the protrusion extends in the axial direction not exceeding a midpoint radial plane of the at least one side hole.

[0013] As a preferred embodiment of the above technical solution, preferably, in an axial section, the surface profile of the convex portion is approximately a continuous and smooth W-shape.

[0014] As a preferred embodiment of the above technical solution, preferably, the peripheral wall and the head are made of the same material and are integrally formed as a single component, and the valve body is completely free of threads.

[0015] To achieve the above-mentioned purpose, the present invention further provides a tire air valve, comprising a valve member, and further comprising: a pipe member, comprising a channel and a flange extending radially inward, the valve member is accommodated in the channel, the opening of the axial hole and the sealing member are respectively located on two opposite sides of the flange, the peripheral wall and the sealing member respectively have an outer diameter greater than the inner diameter of the flange, and the valve member can move between a sealing position and a conducting position; wherein, when the valve member is located at the sealing position, the sealing member is in sealing contact with the inner surface of the pipe member to block the channel, and when the valve member is located at the conducting position, the sealing member is separated from the inner surface of the pipe member without blocking the channel.

[0016] As a preferred embodiment of the above technical solution, it is preferable to further include a limiting member, wherein an inner surface of the pipe is provided with a groove, the limiting member is embedded in the groove and axially opposite to the peripheral wall to limit the valve member in the channel.

[0017] As a preferred embodiment of the above technical solution, preferably, the inner surface of the pipe is convexly provided with a radially extending retaining edge and a groove adjacent to the retaining edge, and an end portion of the pipe has a connecting hole adjacent to the groove, the retaining edge is located between the valve member and the groove, the groove accommodates a second sealing member, and the groove is radially recessed outward relative to the hole wall surface of the connecting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are 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.

[0019] Figure 1 It is a three-dimensional diagram of a preferred embodiment of the present invention.

[0020] Figure 2 It is an exploded view of a preferred embodiment of the present invention.

[0021] Figure 3 It is a cross-sectional view of a preferred embodiment of the present invention.

[0022] Figure 4 FIG. 1 is a schematic diagram of a conduction state of a preferred embodiment of the present invention.

[0023] Figure 5 and Figure 6 It is a three-dimensional diagram of a preferred embodiment of the present invention.

[0024] Figure 7 for Figure 6 Axial side view.

[0025] Among them, 1: valve member; 10: valve body; 11: peripheral wall; 111: first end; 112: second end; 113: axial hole; 114: side hole; 115: opening; 116: large diameter section; 117: small diameter section; 118: reinforcing rib; 119: midpoint radial plane; 20: head; 21: groove; 22: convex portion; 23: second convex portion; 30: sealing member; 40: pipe fitting; 41: channel; 42: flange; 43: internal thread section; 44: clamping groove; 45: retaining edge; 46: groove; 47: connecting hole; 48: embedded groove; 50: limiting member; 51: radial convex; 60: second sealing member; 70: end cover; 71: clamping rib; 100: tire valve. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The following examples are merely used to illustrate possible implementations of the present invention, but are not intended to limit the scope of the present invention, so it is necessary to explain them first.

[0028] Please refer to Figures 1 to 7 , which shows a preferred embodiment of the present invention, the valve member 1 for a tire valve of the present invention comprises a valve body 10, a head 20 and a sealing member 30. The tire valve can be a valve for a bicycle, a car or other wheeled device, and the tire valve can be, for example, a valve for a tubeless tire or a valve for a tube tire.

[0029] The valve body 10 includes a peripheral wall 11, the peripheral wall 11 includes a first end 111 and a second end 112, the peripheral wall 11 surrounds an axial hole 113 and is provided with at least one side hole 114 connected to the axial hole 113, and the axial hole 113 has an opening 115 at the first end 111. The head 20 is axially fixedly connected to the second end 112 of the peripheral wall 11 as a whole, and the head 20 is provided with a groove 21 on the peripheral surface. The sealing member 30 is embedded in the groove 21 and radially protrudes from the groove 21, so as to be sealed against an inner surface of the tire valve. Thus, the valve body 10 is simple to manufacture, low in cost, quick to assemble and disassemble, stable in structure and strong in strength. Preferably, the valve body 10 is completely free of threads, the peripheral wall 11 and the head 20 are made of the same material (such as plastic) and are integrally formed as a single component, or the two components can be welded, bonded or otherwise fixed to form an integral structure.

[0030] The peripheral wall 11 further includes a closed annular large diameter section 116 and a small diameter section 117, and the small diameter section 117 is connected between the large diameter section 116 and the head 20. The large diameter section 116 radially protrudes from the small diameter section 117, and the at least one side hole 114 is provided in the small diameter section 117. The valve body 10 further includes at least one reinforcing rib 118, and the at least one reinforcing rib 118 extends between the large diameter section 116 and the small diameter section 117 to strengthen the structural strength of the peripheral wall 11. The head 20 and the small diameter section 117 have substantially equal radial dimensions, so that the valve member 1 can be directly inserted from the outside to the inside into a pipe of the tire valve, and the volume is reduced and a large gas flow rate is achieved. Furthermore, the large diameter section 116 is preferably a complete annular wall, and the small diameter section 117 is provided with two side holes 114, which are generally rectangular and arranged radially opposite to each other. The total area of ​​the two side holes 114 is preferably not less than the total area of ​​the outer circumference of the small diameter section 117, and has sufficient structural strength and can provide a large gas flow area, which is conducive to large-flow inflation and deflation. The number of the at least one side hole 114 is not limited to two, and can also be three or more.

[0031] In the present embodiment, the second end 112 of the peripheral wall 11 is completely covered by the head 20, which can increase the structural strength of the peripheral wall 11. The head 20 includes a protrusion 22 extending into the axial hole 113 toward the first end 111 of the peripheral wall 11, and the head 20 also includes a second protrusion 23 extending toward the second end 112 away from the peripheral wall 11. In the axial direction of the valve body 10, the size of the at least one side hole 114 is at least one-third of the axial size of the valve body 10, so that the valve element 1 has a smaller size and still has a large gas flow area; the protrusion 22 extends in the axial direction not exceeding a midpoint radial plane 119 of the at least one side hole 114, which can effectively guide the gas flow to flow smoothly. In addition, in an axial section ( Figure 3 ), the surface profile of the protrusion 22 is generally a continuous and smooth W-shape, which can reduce the flow resistance of the gas and effectively guide the gas flow to the two side holes 114.

[0032] In this embodiment, the groove 21 is an annular groove, and the seal 30 is a ring member set on the head 20 and embedded in the annular groove. The seal 30 is made of elastic material (such as rubber) and has a good sealing effect. The head 20 has a greater hardness than the seal 30, so that the head 20 can effectively press the seal 30 against the inner surface of the tire valve.

[0033] The present invention further provides a tire air valve 100, which includes a valve member 1 and a pipe member 40. The pipe member 40 includes a channel 41 and a flange 42 extending radially inward, the valve member 1 is accommodated in the channel 41, the opening 115 of the axial hole 113 and the sealing member 30 are respectively located on two opposite sides of the flange 42, the peripheral wall 11 and the sealing member 30 respectively have an outer diameter greater than the inner diameter of the flange 42, and the valve member 1 can be moved to a sealing position ( Figure 3 ) and a conducting position ( Figure 4 ); when the valve member 1 is located at the sealing position, the seal 30 is sealingly abutted against the inner surface of the pipe member 40 to block the channel 41; when the valve member 1 is located at the conducting position, the seal 30 is separated from the inner surface of the pipe member 40 without blocking the channel 41, and the large-diameter section 116 can be stopped at the flange 42. At this time, the cross-sectional area available for flow of the two side holes 114 is the largest, with a high flow rate and rapid filling and discharge of gas.

[0034] The pipe 40 may be a single component or a multi-piece assembly. The pipe 40 may be one of the components of a tire valve assembly, or the pipe 40 may be an integrally formed adapter for a tire (tubeless or tube-type) valve assembly. The pipe 40 is provided with an internal threaded section 43, which can be screwed to an external threaded section of the tire valve assembly.

[0035] Preferably, the tire valve further comprises a limiting member 50, wherein an inner surface of the tube 40 is provided with a slot 44, the limiting member 50 is inserted into the slot 44 and axially opposite to the peripheral wall 11 to limit the valve member 1 in the channel 41. The limiting member 50 can be a C-shaped buckle made of metal material, and the limiting member 50 comprises a plurality of radially extending radial protrusions 51, has a large structural strength and can effectively limit the valve member 1, and the valve member 1 will not fall out of the tube 40 even under a very large air pressure.

[0036] The inner surface of the pipe 40 is provided with a radially extending retaining edge 45 and a groove 46 adjacent to the retaining edge 45. A terminal portion of the pipe 40 has a connecting hole 47 adjacent to the groove 46. The retaining edge 45 is located between the valve member 1 and the groove 46. The groove 46 accommodates a second sealing member 60. In this embodiment, the retaining edge 45 is an annular flange, the groove 46 is an annular groove, and the connecting hole 47 is a screw hole for screwing with an external pipe. The second sealing member 60 is a ring member embedded in the groove 46. The second sealing member 60 is made of elastic material (such as rubber) and has a good sealing effect. Specifically, an inner diameter of the annular flange is smaller than the inner diameter of the second sealing member 60. Even if the second sealing member 60 is deformed by pressure, it will not radially exceed the annular flange and will not affect the cross-sectional area of ​​the flow channel. The groove 46 is radially recessed outward relative to the wall surface of the connecting hole 47, which can effectively restrain the second sealing member 60 in the groove 46 and prevent it from shifting or detaching at will, and helps to achieve a sealing effect after the pipe 40 is threadedly connected to the external pipe.

[0037] Preferably, the outer circumferential surface of the tube 40 is provided with at least one circumferentially extending embedding groove 48, and the tire valve 100 further includes an end cap 70, and the inner surface of the end cap 70 is provided with at least one circumferentially extending clamping rib 71, and the at least one clamping rib 71 can be releasably embedded in the at least one embedding groove 48, so that the end cap 70 can be releasably sealed on the tube 40. The end cap 70 can also be screwed to the tube 40.

[0038] The valve member 1 has a large passageway that allows sealant to be injected into the tire even after assembly to the rim, so there is no need to disassemble the valve member 1. The large passageway also prevents the valve member 1 from becoming clogged with sealant and becoming ineffective. The valve member 1 does not extend beyond the tube 40 and is therefore less susceptible to damage and breakage during use and tire inflation.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A valve member for a tire valve, characterized in that: include: A valve body, including a peripheral wall, the peripheral wall including a first end and a second end, the peripheral wall surrounding an axial hole and having at least one side hole communicating with the axial hole, the axial hole having an opening at the first end; A head portion is axially fixedly connected to the second end of the peripheral wall as a whole and has a groove formed on the peripheral surface; and A sealing member is embedded in the groove and radially protrudes from the groove to seal against an inner surface of the tire valve.

2. The valve member according to claim 1, characterized in that: The peripheral wall further comprises a large diameter section and a small diameter section. The small diameter section is connected between the large diameter section and the head. The large diameter section radially protrudes from the small diameter section.

3. The valve member according to claim 2, characterized in that: The valve body further comprises at least one reinforcing rib, and the at least one reinforcing rib extends between the large diameter section and the small diameter section.

4. The valve member according to claim 2, characterized in that: In the axial direction of the valve body, the size of the at least one side hole is at least one third of the axial size of the valve body; the total area of ​​the at least one side hole is not less than the total area of ​​the outer circumference of the small diameter section.

5. The valve member according to claim 1, characterized in that: The head portion includes a protrusion extending into the axial hole toward the first end of the peripheral wall, and the protrusion extends in the axial direction not exceeding a midpoint radial plane of the at least one side hole.

6. The valve member according to claim 5, characterized in that In an axial section, the surface profile of the protrusion is approximately in a continuous and smooth W-shape.

7. The valve member according to claim 1, characterized in that The peripheral wall and the head are made of the same material and are integrally formed into a single component, and the valve body is completely free of threads.

8. A tire valve, comprising a valve member according to any one of claims 1 to 7, characterized in that include: A pipe member, comprising a passage and a flange extending radially inward, the valve member is accommodated in the passage, the opening of the axial hole and the sealing member are respectively located on two opposite sides of the flange, the peripheral wall and the sealing member respectively have an outer diameter greater than the inner diameter of the flange, and the valve member can move between a sealing position and a conducting position; When the valve member is located at the sealing position, the seal member seals against the inner surface of the tube member and blocks the passage; when the valve member is located at the conducting position, the seal member is separated from the inner surface of the tube member and does not block the passage.

9. The tire valve according to claim 8, characterized in that: A limiting member is also included, wherein an inner surface of the pipe member is provided with a clamping groove, the limiting member is embedded in the clamping groove and axially opposite to the peripheral wall to limit the valve member in the channel.

10. The tire valve according to claim 8, characterized in that: The inner surface of the pipe is convexly provided with a radially extending retaining edge and a groove adjacent to the retaining edge. An end portion of the pipe has a connecting hole adjacent to the groove. The retaining edge is located between the valve member and the groove. The groove accommodates a second sealing member. The groove is radially recessed outward relative to the hole wall of the connecting hole.

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