Bidirectional sealing special-shaped TPMS inflating valve

Abstract

The utility model discloses a two-way sealing special-shaped TPMS (tire pressure monitoring system) inflating valve, which relates to the technical field of wheel inflating valves and comprises an upper structure inflating valve and a lower structure inflating valve which are both inserted into a rim and connected with each other, an upper sealing gasket is mounted between the upper structure inflating valve and the rim, and a lower sealing gasket is fixedly mounted between the lower structure inflating valve and the rim. The upper structure inflating valve is provided with an adjusting assembly used for adjusting the relative distance between the upper sealing gasket and the lower sealing gasket. The device can realize two-way sealing, is suitable for rims with special-shaped and different thicknesses and rims with sealing requirements on hub cavities, and is high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to transmission device technical field, especially relate to a two -way sealing special TPMS air valve. BACKGROUND

[0002] The air valve is a kind of independent valve body device, when opening, let gas into the space of tubeless tire or inner tube, then automatically close and seal to save gas and generate air pressure, to prevent gas from escaping tire or inner tube. Except solid tire, other tires or inner tubes that must be inflated all need to use this device to inflate.

[0003] Most of the existing TPMS air valve only has one side sealing, that is, a sealing element is arranged on one side of the rim to seal, and the rim with sealing requirements for the rim cavity cannot be sealed. The sealing between the installed air valve and the rim is only sealed by a single sealing ring. During the driving of the vehicle in rainy days, water and foreign matters are likely to enter the hub cavity, causing uneven weight of the four tires, and hidden dangers to the safe driving of the vehicle. To solve this problem, multiple seals can be added, such as the patent with publication number CN108533749A discloses a vehicle wheel air valve. The air valve has at least one more sealing than the prior art, and the sealing effect is greatly improved. However, the length of the existing air valve and the air valve of this patent is fixed, and cannot meet the requirements of special rims and rims with different thicknesses. SUMMARY

[0004] In view of the problems mentioned in the background art, the utility model aims to provide a two-way sealing special TPMS air valve to solve the problems mentioned in the background art.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] A two-way sealing special TPMS air valve, comprising an upper structure air valve and a lower structure air valve inserted into the rim and connected to each other, an upper sealing gasket is installed between the upper structure air valve and the rim, a lower sealing gasket is fixedly installed between the lower structure air valve and the rim, and an adjusting assembly for adjusting the relative distance between the upper sealing gasket and the lower sealing gasket is installed on the upper structure air valve.

[0007] As a preferred technical scheme, the upper structure air valve and the lower structure air valve are connected and locked by a locking nut, and the locking nut is located in the rim cavity.

[0008] As a preferred technical scheme, the outer wall of the upper structure air valve inserted into the rim cavity is provided with a connection thread one, the inner wall of the lower structure air valve inserted into the rim cavity is provided with a connection thread two, and the locking nut and the lower structure air valve are threadedly connected with the connection thread one.

[0009] As a preferred technical scheme, the adjusting assembly comprises adjusting threads arranged on the outer wall of the upper structure valve nozzle, and the upper structure valve nozzle is threadedly connected with an outer nut through the adjusting threads.

[0010] As a preferred technical scheme, the sealing surface of the upper sealing gasket faces the rim hole, and the outer wall of the bottom end of the upper sealing gasket is in extrusion contact with the inner wall of the rim hole, the sealing surface of the lower sealing gasket faces the rim hole, and the outer wall of the top end of the lower sealing gasket is in extrusion contact with the inner wall of the rim hole.

[0011] As a preferred technical scheme, the upper structure valve nozzle is provided with a gasket, the bottom end of the outer nut is in contact and connection with the top end of the gasket, and the inner wall of the gasket extrudes and limits the upper sealing gasket.

[0012] As a preferred technical scheme, the lower structure valve nozzle is provided with a retaining ring outside the rim, and the lower sealing gasket is installed between the retaining ring and the rim, and the bottom end of the lower sealing gasket is in extrusion contact with the top end of the retaining ring.

[0013] As a preferred technical scheme, the upper structure valve nozzle is provided with an upper air hole penetrating along the axis, the lower structure valve nozzle is provided with a lower air hole penetrating along the axis, and when the upper structure valve nozzle and the lower structure valve nozzle are connected, the lower air hole and the upper air hole are in communication and the axes coincide.

[0014] Beneficial effects

[0015] The device can be bidirectionally sealed, is suitable for rims and hub cavities of different shapes and thicknesses, and has high practicability.

[0016] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a perspective view of the valve nozzle and the rim;

[0018] Fig. 2 It is a front view of the valve nozzle and the rim;

[0019] Fig. 3 It is a front view of the valve nozzle.

[0020] The drawings show that: 1, the rim; 2, the upper structure valve nozzle; 21, the outer nut; 22, the upper air hole; 23, the gasket; 24, the upper sealing gasket; 25, the adjusting thread; 26, the first connecting thread; 3, the lower structure valve nozzle; 31, the lower air hole; 32, the lower sealing gasket; 33, the second connecting thread; 4, the locking nut. DETAILED DESCRIPTION

[0021] Embodiments of the present application will be described in detail below, examples of which are represented in the drawings, wherein the same or similar symbols represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as limiting the present application.

[0022] Embodiment 1

[0023] Reference Figs. 1 to 3 The two-way sealing special-shaped TPMS valve of the present embodiment comprises an upper structure valve 2 and a lower structure valve 3, the upper structure valve 2 and the lower structure valve 3 are inserted into a rim 1 and connected by a locking nut 4, the upper structure valve 2 and the lower structure valve 3 are sealed by a sealing gasket, an adjusting thread 25 is arranged on the outer wall of the upper structure valve 2, the upper structure valve 2 is threadedly connected with an outer nut 5 through the adjusting thread 25, and the position of the outer nut 5 relative to the upper structure valve 2 can be adjusted by threads.

[0024] The outer periphery of the upper structure valve 2 connected with the rim 1 is sleeved with an upper sealing gasket 24, the sealing surface of the upper sealing gasket 24 faces the rim hole, a gasket 23 is further sleeved outside the upper structure valve 2, the bottom end of the outer nut 5 is in contact with the gasket 23, the cross section of the gasket 23 is L-shaped, the inner wall of the gasket 23 extrudes and limits the upper sealing gasket 24, the bottom end outer wall of the upper sealing gasket 24 extrudes and contacts with the inner wall of the rim hole, the upper structure valve 2 is provided with an upper air hole 22 penetrating along the axis, the part of the upper structure valve 2 inserted into the rim is provided with an engaging thread one 21, and the locking nut 4 and the lower structure valve 3 are threadedly connected with the engaging thread one 21.

[0025] The lower structure valve 3 is provided with a lower air hole 31 penetrating along the axis, when the upper structure valve 2 and the lower structure valve 3 are connected, the lower air hole 31 and the upper air hole 22 are communicated and the axes coincide, the part of the lower structure valve 3 inserted into the rim is provided with an engaging thread two 33, the engaging thread one 21 and the engaging thread two 33 are threadedly connected, the lower structure valve 3 is provided with a blocking ring 34 outside the rim, the outer periphery of the lower structure valve 3 connected with the rim 1 is sleeved with a lower sealing gasket 32, the lower sealing gasket 32 is installed between the blocking ring 34 and the rim 1 and the sealing surface of the lower sealing gasket 32 faces the rim hole, the top end outer wall of the lower sealing gasket 32 extrudes and contacts with the inner wall of the rim hole, and the bottom end of the lower sealing gasket 32 extrudes and contacts with the top end of the blocking ring 34.

[0026] Working principle:

[0027] Firstly, the upper structure valve core 2 is installed with a core gas, after the gas measurement is completed, the lower structure valve core 3 is installed with a lower sealing pad 32, the upper structure valve core 2 is installed with an upper locking nut, the upper structure valve core 2 and the lower structure valve core 3 are inserted into the rim 1 respectively, the upper structure valve core 2 is inserted into the lower structure valve core 3, the upper sealing pad 24 and the gasket 23 are sleeved on the outer side of the upper structure valve core 2, the outer nut 5 is sleeved on the outer side of the upper structure valve core 2, according to the thickness of the rim 1, the position of the outer nut 5 and the upper structure valve core 2 is adjusted, the gasket 23 is extruded by the outer nut 5, the upper sealing pad 24 is extruded and limited by the gasket 23, so as to prevent the upper sealing pad 24 from being separated, similarly, the lower sealing pad 32 is extruded and limited by the blocking ring 34, so as to prevent the lower sealing pad 32 from being separated, then the connecting thread two 33 and the locking nut 4 are screwed with the connecting thread one 21, so that the upper structure valve core 2 and the lower structure valve core 3 are fixed, the upper sealing pad 24 and the lower sealing pad 32 are extruded and deformed under the action of the axial force, so as to seal the upper and lower rim holes of the rim 1.

[0028] It should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0030] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In the utility model, unless another definite provision and limitation, first feature is on second feature "on" or "under" can be first and second feature direct contact, or first and second feature indirectly contact through intermediate medium. Moreover, first feature is on second feature "on", "above" and "on" can be first feature is on second feature directly or obliquely, or only indicate first feature horizontal height is higher than second feature. First feature is on second feature "under", "below" and "under" can be first feature is on second feature directly or obliquely, or only indicate first feature horizontal height is less than second feature.

[0032] The above merely describes a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and utility model concept of the utility model, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A bidirectional sealing hermaphroditic TPMS valve stem cap characterized by: The application relates to a tire valve, which comprises an upper structure valve (2) and a lower structure valve (3) inserted into a rim (1) and connected with each other, an upper sealing gasket (24) is arranged between the upper structure valve (2) and the rim (1), a lower sealing gasket (32) is fixedly arranged between the lower structure valve (3) and the rim (1), and an adjusting assembly for adjusting the relative distance between the upper sealing gasket (24) and the lower sealing gasket (32) is arranged on the upper structure valve (2).

2. The bidirectional sealing hermaphroditic TPMS valve stem cap of claim 1 wherein: The upper structure valve (2) and the lower structure valve (3) are connected and locked through a locking nut (4), and the locking nut (4) is located in the cavity of the rim (1).

3. The bidirectional sealing hermaphroditic TPMS valve stem cap of claim 2, wherein: An engaging thread one (21) is arranged on the outer wall of the upper structure valve (2) inserted into the cavity of the rim (1), an engaging thread two (33) is arranged on the inner wall of the lower structure valve (3) inserted into the cavity of the rim (1), and the locking nut (4) and the lower structure valve (3) are threadedly connected with the engaging thread one (21).

4. The bidirectional sealing hermaphroditic TPMS valve stem cap of claim 1 wherein: The adjusting assembly comprises an adjusting thread (25) arranged on the outer wall of the upper structure valve (2), and the upper structure valve (2) is threadedly connected with an outer nut (5) through the adjusting thread (25).

5. The bidirectional sealing hermaphroditic TPMS valve stem cap of claim 1 wherein: The sealing surface of the upper sealing gasket (24) faces the rim hole, the bottom end of the upper sealing gasket (24) is in extrusion contact with the inner wall of the rim hole, the sealing surface of the lower sealing gasket (32) faces the rim hole, and the top end of the lower sealing gasket (32) is in extrusion contact with the inner wall of the rim hole.

6. The bidirectional sealing hermaphroditic TPMS valve stem cap of claim 1 wherein: The upper structure valve (2) is provided with a gasket (23), the bottom end of the outer nut (5) is in contact connection with the top end of the gasket (23), and the inner wall of the gasket (23) extrudes and limits the upper sealing gasket (24).

7. The bidirectional sealing hermaphroditic TPMS valve stem cap of claim 1 wherein: The lower structure valve (3) is provided with a retaining ring (34) outside the rim (1), the lower sealing gasket (32) is arranged between the retaining ring (34) and the rim (1), and the bottom end of the lower sealing gasket (32) is in extrusion contact with the top end of the retaining ring (34).

8. The bidirectional sealing hermaphroditic TPMS valve stem cap of claim 1 wherein: The upper structure valve (2) is provided with an upper air hole (22) penetrating along the axis, the lower structure valve (3) is provided with a lower air hole (31) penetrating along the axis, and when the upper structure valve (2) and the lower structure valve (3) are connected, the lower air hole (31) and the upper air hole (22) are communicated and the axes are coincident.

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