Improved wheel side valve

Abstract

The utility model discloses an improved wheel-side valve, which belongs to the technical field of wheel-side valves and is characterized in that an air passage is arranged inside a valve body, an air inlet head is arranged at one end of the air passage, an air outlet joint is arranged at the other end of the air passage, an air inlet hole is arranged at one end of the air inlet head, an air core is slidably connected to the inner wall of the air inlet hole, and a buffer plate is arranged at one end of the air core; according to the improved wheel-side valve, through the arrangement of the adjusting column, the extrusion head and the buffer piece, the elastic strength of the air core can be adjusted in the using process, and therefore after the air core is used for a long time, the air core is not prone to falling off, and the service life of the air core is prolonged. And through the arrangement of the air outlet connector and the installation groove, not only can the sealing performance of the air outlet position be guaranteed, but also the air outlet connector can be conveniently and rapidly assembled and positioned, meanwhile, later independent disassembly and replacement are facilitated, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel side valves, and more specifically, to an improved wheel side valve. Background Art

[0002] The central inflation and deflation system of the tires of a small car consists of a compressed air gas source, a control air circuit, a rotary sealing air chamber, a wheel side valve and corresponding pipelines to form a complete system, which is used to adjust the air pressure of the tires to meet the different requirements of different road surfaces for the air pressure of the vehicle tires. Among them, the wheel side valve is an important component in the central tire deflation system.

[0003] Currently, when the commonly used wheel side valve is in use, whether it is inflating or deflating, the air core needs to be squeezed to open the air hole. However, after long-term use, the air core is prone to elastic weakness due to long-term frequent squeezing, thereby reducing the sealing performance of the air intake position. At the same time, when the air outlet head has a sealing problem, the entire wheel side valve needs to be replaced, increasing the maintenance cost. For this reason, we have designed an improved wheel side valve to solve the above problems. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide an improved wheel side valve. The improved wheel side valve can adjust the elastic strength of the air core during use by setting an adjusting column, a squeezing head and a buffer sheet, so that after long-term use, the air core can still ensure the sealing performance of the air intake position when not admitting air. And by setting an air outlet joint and an installation groove, it can not only ensure the sealing performance of the air outlet position, but also facilitate the quick assembly and positioning of the air outlet head, and at the same time facilitate the subsequent separate disassembly and replacement, reducing the maintenance cost.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] An improved wheel-end valve includes a valve body. An air passage is provided inside the valve body. One end of the air passage is provided with an air inlet head, and the other end of the air passage is provided with an air outlet joint. One end of the air inlet head is provided with an air inlet hole, and an air core is slidably connected to the inner wall of the air inlet hole. One end of the air core is provided with a buffer piece, and one end of the buffer piece contacts and presses an extrusion head. One end of the extrusion head is fixedly connected to an adjustment column. The surface of the adjustment column is threadedly connected with a nut, and the bottom of the nut is fixedly connected to the surface of the valve body. A communication hole is provided at the central position of the air outlet joint. One end of the air outlet joint is threadedly connected with an air outlet head. One end of the air outlet head is provided with an air outlet hole, and one end of the air outlet hole communicates with an installation groove. One end of the installation groove is communicated with one end of the communication hole. By setting the adjustment column, the extrusion head and the buffer piece, the elastic strength of the air core can be adjusted during use, so that after long-term use, the air core can still ensure the sealing performance of the air inlet position when not admitting air. And by setting the air outlet joint and the installation groove, not only can the sealing performance of the air outlet position be ensured, but also the quick assembly and positioning of the air outlet head are convenient, and at the same time, it is convenient for later separate disassembly and replacement, reducing the maintenance cost.

[0007] Further, two clamping grooves are provided on the surface of the adjustment column, and a sealing sleeve and a sealing ring are respectively sleeved in the two clamping grooves. The surfaces of the sealing sleeve and the sealing ring are in contact with and pressed against the inner wall of the valve body. The sealing sleeve and the sealing ring are both made of extrusion-resistant sealing rubber. The sealing sleeve and the sealing ring can not only ensure the connection sealing performance of the adjustment column, but also prevent it from rotating randomly.

[0008] Further, a first groove is provided at one end of the air outlet joint, and a first sealing ring is sleeved inside the first groove. The surface of the first sealing ring is in contact with and pressed against the inner wall of the valve body. The first sealing ring can ensure the sealing performance of one end of the communication hole.

[0009] Further, a density pad is sleeved outside the air outlet head, and an anti-slip portion is provided at one end of the air outlet head. The cross-sectional shape of the anti-slip portion is polygonal. The anti-slip portion is convenient for a wrench to rotate and disassemble the air outlet head.

[0010] Further, a screw hole is provided at the central position of the nut, and an external thread matching the internal thread in the screw hole is provided on the surface of the adjustment column. A flat head is provided at one end of the adjustment column. The flat head is convenient for rotating the adjustment column with a flat-head screwdriver.

[0011] Further, a second groove is provided on the surface of the air outlet joint, and a second sealing ring is sleeved inside the second groove. The surface of the second sealing ring is in contact with and pressed against the inner wall of the installation groove, improving the sealing performance of the connection.

[0012] Further, the buffer sheet is made of a spring steel metal sheet, and the buffer sheet has the function of compressive elastic force.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] By providing the adjusting column, the extrusion head and the buffer sheet, the elastic strength of the air core can be adjusted during use, so that after the air core is used for a long time, the air inlet position can still be kept sealed when there is no air inlet.

[0015] By providing the air outlet joint and the installation groove, the present solution can not only ensure the sealing of the air outlet position, but also facilitate the quick assembly and positioning of the air outlet head, and at the same time facilitate the subsequent separate disassembly and replacement, reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0017] Figure 2 is Figure 1 a partial cross-sectional view of the installation structure of the air outlet head and the valve body;

[0018] Figure 3 is Figure 1 a partial cross-sectional view of the installation structure of the air inlet head and the valve body;

[0019] Figure 4 is Figure 2 a three-dimensional view of the air outlet joint structure;

[0020] Figure 5 is Figure 2 a top view of the air outlet head structure.

[0021] Explanation of the reference numerals in the drawings:

[0022] 1 valve body, 11 air passage, 2 air inlet head, 21 air inlet hole, 22 air core, 23 buffer sheet, 3 adjusting column, 31 flat head, 32 nut, 33 sealing sleeve, 34 sealing ring, 35 extrusion head, 4 air outlet head, 41 air outlet hole, 42 installation groove, 43 sealing gasket, 44 anti-slip part, 5 air outlet joint, 51 communication hole, 52 first groove, 53 second groove, 54 first sealing ring, 55 second sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0024] Please refer to Figures 1-5 , an improved wheel-end valve, including a valve body 1. The valve body 1 is the wheel-end valve body, belonging to the existing technology, used for inflating and deflating vehicle tires. An air passage 11 is provided inside the valve body 1. One end of the air passage 11 is provided with an intake head 2, and the other end of the air passage 11 is provided with an outlet connector 5. One end of the intake head 2 is provided with an intake hole 21, and an air core 22 is slidably connected to the inner wall of the intake hole 21. The air core 22 is used to seal the intake hole 21 to prevent the air inside the vehicle tire from automatically exhausting, which belongs to the existing technology. One end of the air core 22 is provided with a buffer piece 23. The buffer piece 23 is made of spring steel metal sheet, and the buffer piece 23 has the function of compressive elasticity. One end of the buffer piece 23 contacts and presses an extrusion head 35. One end of the extrusion head 35 is fixedly connected to an adjustment column 3. The adjustment column 3 can squeeze the buffer piece 23 by changing its telescopic length, thereby increasing the elastic strength of the buffer piece 23. The surface of the adjustment column 3 is threadedly connected with a nut 32, and the bottom of the nut 32 is fixedly connected to the surface of the valve body 1. A communication hole 51 is provided at the center position of the outlet connector 5. A second groove 53 is provided on the surface of the outlet connector 5. A second sealing ring 55 is sleeved inside the second groove 53. The surface of the second sealing ring 55 contacts and presses against the inner wall of the installation groove 42, improving the sealing performance of the connection. One end of the outlet connector 5 is threadedly connected with an outlet head 4. One end of the outlet head 4 is provided with an air outlet hole 41. One end of the air outlet hole 41 communicates with an installation groove 42, and one end of the installation groove 42 is connected to one end of the communication hole 51.

[0025] Two clamping grooves are provided on the surface of the adjustment column 3. A sealing sleeve 33 and a sealing ring 34 are respectively sleeved in the two clamping grooves. The surfaces of the sealing sleeve 33 and the sealing ring 34 both contact and press against the inner wall of the valve body 1. The sealing sleeve 33 and the sealing ring 34 are both made of extrusion-resistant sealing rubber. The sealing sleeve 33 and the sealing ring 34 can not only ensure the connection sealing performance of the adjustment column 3, but also prevent it from rotating randomly. One end of the outlet connector 5 is provided with a first groove 52. A first sealing ring 54 is sleeved inside the first groove 52. The surface of the first sealing ring 54 contacts and presses against the inner wall of the valve body 1. The first sealing ring 54 can ensure the sealing performance of one end of the communication hole 51.

[0026] A density pad 43 is sleeved outside the outlet head 4. One end of the outlet head 4 is provided with an anti-slip portion 44. The cross-sectional shape of the anti-slip portion 44 is polygonal. The anti-slip portion 44 is convenient for the wrench to rotate and disassemble the outlet head 4. A screw hole is provided at the center position of the nut 32. The surface of the adjustment column 3 is provided with an external thread matching the internal thread in the screw hole. One end of the adjustment column 3 is provided with a slotted head 31. The slotted head 31 is convenient for rotating the adjustment column 3 with a flat-blade screwdriver.

[0027] When the improved wheel side valve needs to adjust the sealing effect of the air core 22, a flat screwdriver can be inserted into the flat slot 31 and the adjusting column 3 can be rotated clockwise. When the adjusting column 3 rotates clockwise, under the action of the thread of the nut 32, it moves downward, thereby driving the extrusion head 35 to squeeze the buffer piece 23 downward. The buffer piece 23 is squeezed and moves downward to squeeze the air core 22. The air core 22 moves downward and is squeezed against the inner wall of the air inlet hole 21 to improve the sealing effect. At the same time, the buffer piece 23 is squeezed downward and the bending is increased after being squeezed by the extrusion forces at both ends, thereby increasing the elastic strength of the buffer piece 23. When the air outlet head 4 needs to be replaced, it can be removed by rotating it counterclockwise with a wrench and then a new air outlet head 4 can be replaced. By providing the adjusting column 3, the extrusion head 35 and the buffer piece 23, the elastic strength of the air core 22 can be adjusted during use, so that after the air core 22 is used for a long time, the air inlet position can still be sealed when there is no air intake. And by providing the air outlet joint 5 and the installation groove 42, not only the sealing of the air outlet position can be ensured, but also the air outlet head 4 can be quickly assembled and positioned, and it is convenient for later separate disassembly and replacement, reducing the maintenance cost.

[0028] The above are only the preferred specific embodiments of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent replacements or changes, and all should be covered by the protection scope of the present invention.

Claims

1. An improved wheel side valve, comprising a valve body (1), wherein an air passage (11) is arranged inside the valve body (1), and it is characterized in that: One end of the air passage (11) is provided with an air inlet head (2), the other end of the air passage (11) is provided with an air outlet connector (5), one end of the air inlet head (2) is provided with an air inlet hole (21), an air core (22) is slidably connected to the inner wall of the air inlet hole (21), one end of the air core (22) is provided with a buffer piece (23), one end of the buffer piece (23) contacts and presses an extrusion head (35), one end of the extrusion head (35) is fixedly connected to an adjusting column (3), the surface of the adjusting column (3) is threadedly connected with a nut (32), and the bottom of the nut (32) is fixedly connected to the surface of the valve body (1). A communication hole (51) is provided at the central position of the air outlet connector (5), one end of the air outlet connector (5) is threadedly connected with an air outlet head (4), one end of the air outlet head (4) is provided with an air outlet hole (41), one end of the air outlet hole (41) communicates with an installation groove (42), and one end of the installation groove (42) is communicated with one end of the communication hole (51).

2. An improved wheel-end valve according to claim 1, characterized in that: Two clamping grooves are provided on the surface of the adjusting column (3), a sealing sleeve (33) and a sealing ring (34) are respectively sleeved in the two clamping grooves, the surfaces of the sealing sleeve (33) and the sealing ring (34) are both in contact with and pressed against the inner wall of the valve body (1), and both the sealing sleeve (33) and the sealing ring (34) are made of extrusion-resistant sealing rubber.

3. An improved wheel-end valve according to claim 1, characterized in that: One end of the air outlet connector (5) is provided with a first groove (52), a first sealing ring (54) is sleeved inside the first groove (52), and the surface of the first sealing ring (54) is in contact with and pressed against the inner wall of the valve body (1).

4. An improved wheel side valve according to claim 1, characterized in that: A density pad (43) is sleeved outside the air outlet head (4), and an anti-slip portion (44) is provided at one end of the air outlet head (4), and the cross-sectional shape of the anti-slip portion (44) is polygonal.

5. An improved wheel-end valve according to claim 1, characterized in that: A screw hole is provided at the central position of the nut (32), an external thread matching the internal thread in the screw hole is provided on the surface of the adjusting column (3), and a flat head (31) is provided at one end of the adjusting column (3).

6. An improved wheel-end valve according to claim 1, characterized in that: A second groove (53) is provided on the surface of the air outlet connector (5), and a second sealing ring (55) is sleeved inside the second groove (53).

7. An improved wheel-end valve according to claim 1, wherein: The buffer piece (23) is made of a spring steel metal sheet.

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