Air valve, wheel and vehicle

Abstract

The invention discloses an air valve, a wheel and a vehicle, and the air valve comprises a valve body which is provided with an air vent and a movable channel, and an air guide channel is formed in the inner wall of the movable channel; the piston is movably arranged in the movable channel of the valve body, an air channel capable of being communicated with the air guide channel at a preset position is formed in the piston, when the piston is located at the preset position, the air vent is communicated to the air guide channel through the air channel, and an annular groove is formed in the inner wall of the valve body and / or the outer wall of the piston in the circumferential direction; the position of the annular groove corresponds to the end, used for being communicated with the air channel, of the air guide channel. According to the technical scheme, when the piston moves to the preset position, the air channel is communicated with the air guide channel in the side wall of the valve body, the annular groove can enable the air channel of the piston to be communicated with the air guide channel at any position in the circumferential direction, the situation that the end opening of the air channel deflects and cannot be communicated with the air guide channel due to rotation of the piston is prevented, and stable connection of an air loop is guaranteed; and the use efficiency and the precision are improved.

Description

Technical Field

[0001] The present disclosure relates to the field of airflow control, and in particular, to an air valve, a wheel, and a vehicle. Background Art

[0002] Air valves are essential structural components used to precisely control the direction and volume of gas flow and are widely used in air control units within various devices and equipment. For example, in vehicle gas circuit control units, air valves can be used to control tire inflation and deflation, effectively regulating the internal air pressure of the actuated component and ensuring vehicle safety.

[0003] In related technologies, multi-position, multi-way valves are typically used to regulate the air pressure of the actuator. A piston is installed within the valve, and the movement of the piston adjusts the inflation and deflation process. However, the valve body is typically small and requires a complex air path. If the piston unexpectedly rotates during linear movement, the air path may become blocked, preventing normal inflation and deflation. Summary of the Invention

[0004] The purpose of the present disclosure is to provide an air valve, a wheel and a vehicle to at least partially solve the problems existing in the above-mentioned related technologies.

[0005] To achieve the above objectives, a first embodiment of the present disclosure provides an air valve, comprising: a valve body having an air vent and a movable channel, wherein an air guide channel is defined in an inner wall of the movable channel; and a piston movably disposed in the movable channel of the valve body, wherein an air channel is defined in an interior of the piston and can communicate with the air guide channel at a preset position. Wherein, an annular groove is formed on the inner wall of the valve body or the outer wall of the piston along the circumferential direction, and the position of the annular groove corresponds to the end of the air guide channel for connecting with the air channel.

[0006] Optionally, in the axial direction of the annular groove, the notch size of the annular groove is not less than the size of the air guide channel for connecting with the airway end.

[0007] Optionally, in the radial direction of the annular groove, the depth dimension of the annular groove is smaller than the dimension of the air guide channel.

[0008] Optionally, the valve body includes an air inlet and an air delivery port, the air guide channel includes an air inlet channel for connecting the air inlet with the air delivery port, and an exhaust channel for connecting the air delivery port with the external environment, and the air channel includes a first air channel connecting the air inlet and the air inlet channel at the air inlet position, and a second air channel connecting the air delivery port and the exhaust channel at the exhaust position.

[0009] Optionally, the annular groove is opened in the valve body, and the annular groove includes a first annular groove and a second annular groove, the position of the first annular groove corresponds to the end of the intake channel for connecting to the first air channel, and the position of the second annular groove corresponds to the end of the exhaust channel for connecting to the second air channel.

[0010] Optionally, the outer ring of the piston is provided with a plurality of sealing rings, which press against the inner wall of the valve body. The plurality of sealing rings are configured as follows: during the movement of the piston, only the intake channel is allowed to communicate with the air inlet through the first air channel, and only the exhaust channel is allowed to communicate with the air output port through the second air channel.

[0011] Optionally, a partition space is formed between any two adjacent sealing rings, the end of the first air duct connected to the intake channel is set in one of the partition spaces, and the end of the second air duct connected to the exhaust channel is set in another of the partition spaces.

[0012] Optionally, when the piston is at the preset position, the notch of the first annular groove and the notch of the second annular groove are respectively placed in the corresponding partition space.

[0013] Optionally, in the axial direction of the first annular groove, the notch size of the first annular groove is smaller than the size of the corresponding partition space, and the notch size of the second annular groove is smaller than the size of the corresponding partition space.

[0014] Optionally, the number of the sealing rings is at least five.

[0015] Optionally, the valve body is suitable for being inserted into the cavity wall of the air cavity, and the valve body comprises an air inlet and an air delivery port, wherein the air inlet is located outside the air cavity, and the air delivery port is located inside the air cavity.

[0016] Optionally, it further includes: a valve cover installed on one end of the valve body provided with the air inlet, a docking hole communicating with the air inlet is provided in the valve cover, and the docking hole is suitable for installing an air pipe or a pipe joint.

[0017] Optionally, the valve cover is screwed to the outer side of the valve body, and a sealing ring is provided between the valve cover and the valve body.

[0018] Optionally, the docking hole is a threaded hole.

[0019] Optionally, the valve body includes a main body and an extending portion capable of extending into the air cavity, and the air valve also includes a valve cap installed on the extending portion, the valve cap is suitable for clamping the cavity wall with the main body, and a gas delivery channel connected to the gas delivery port is provided in the valve cap.

[0020] Optionally, a first gasket is provided on a side of the valve cap that is in contact with the cavity wall, and a second gasket is provided on a side of the valve body that is in contact with the cavity wall.

[0021] The second aspect embodiment of the present disclosure provides a wheel, comprising a rim, a tire and the air valve described in the first aspect embodiment of the present disclosure, wherein the air valve is mounted on the rim, wherein the air inlet is located on the outside of the tire and the air delivery port is located on the inside of the tire.

[0022] A third aspect of the present disclosure provides a vehicle, comprising the wheel provided by the second aspect of the present disclosure.

[0023] Through the above technical solution, an air channel is opened in the piston inside the valve body. When the piston moves to a preset position, the air channel can be connected with the air guide channel in the side wall of the valve body. The annular groove can correspond to the end position of the air guide channel, so that when the piston is in the preset position, the air channel can be connected with the air guide channel at any circumferential position through the annular groove, preventing the piston from rotating during use, causing the air channel port to deflect and unable to connect with the air guide channel. The provision of the annular groove can ensure the stable connection of the gas circuit and improve the use efficiency and precision of the gas valve.

[0024] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 It is a schematic structural diagram of a gas valve according to an exemplary embodiment.

[0026] Figure 2 yes Figure 1 A schematic cross-sectional view of the gas valve in its initial position is shown.

[0027] Figure 3 yes Figure 1 A schematic cross-sectional view of the air valve in the intake position is shown.

[0028] Figure 4 yes Figure 1 A schematic cross-sectional view of the gas valve is shown in the exhaust position.

[0029] Figure 5 yes Figure 1 A schematic diagram of the structure of the piston of the gas valve is shown.

[0030] Figure 6 yes Figure 1 A schematic structural diagram of a sealing assembly of a gas valve is shown.

[0031] Figure 7 yes Figure 1 A schematic diagram showing the air valve being mounted on a wheel rim is shown.

[0032] Description of Reference Numerals 3-air valve, 31-valve body, 311-air inlet, 312-air delivery port, 313-air inlet channel, 314-exhaust channel, 3141-muffler, 315-annular groove, 3151-first annular groove, 3152-second annular groove, 316-second gasket, 317-blind hole, 318-sealing assembly, 3181-core seat, 3182-core rod, 3183-limiting part, 3184-first spring, 3185-partition, 319-second spring, 32-piston, 321-first air channel, 322-second air channel, 323-sealing ring, 33-valve cover, 331-docking hole, 332-sealing ring, 34-valve bonnet, 341-air delivery channel, 342-first gasket, 6-rim. DETAILED DESCRIPTION

[0033] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0034] In this disclosure, unless otherwise indicated, directional terms such as "front, rear, left, and right" generally refer to the front and rear, left, and right of a vehicle during normal driving. "Inside" and "outside" refer to the inside and outside of a component relative to its own outline. Furthermore, the attributives "first" and "second," etc., used in this disclosure, are intended to distinguish one element from another and do not convey sequential order or importance.

[0035] When the following description refers to the drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements.

[0036] The first embodiment of the present disclosure provides a gas valve, referring to Figures 1 to 6 The air valve 3 includes a valve body 31 and a piston 32. The valve body 31 has an air vent and a movable channel. An air guide channel is defined in the inner wall of the movable channel. The piston 32 is movably disposed in the movable channel of the valve body 31. An air channel is defined inside the piston 32 and is connected to the air guide channel at a preset position. An annular groove 315 is formed circumferentially on the inner wall of the valve body 31 and / or the outer wall of the piston 32. The position of the annular groove 315 corresponds to the end of the air guide channel for connecting to the air channel.

[0037] In the above embodiment, the air valve 3 may include a valve body 31 and a piston 32. The gas circuit in the air valve 3 may be composed of an air vent provided in the valve body 31, an air guide channel in the movable channel, and an air channel provided in the piston 32. The air channel in the piston 32 may be connected to an air vent of the valve body 31. The air guide channel may connect the air channel with another air vent when the piston 32 moves to a preset position, so that the gas can flow between the air vents of the air valve 3 to achieve air pressure regulation.

[0038] At the same time, an annular groove 315 can be formed on the inner wall of the valve body 31. The annular groove 315 can be set at the end of the air guide channel for connecting the air channel. When the piston 32 moves to the preset position, the port of the air channel and the end of the air guide channel are located on the same circumferential cross-section of the air valve 3. If the piston 32 rotates during the movement, the port of the air channel will deflect relative to the end of the air guide channel. At this time, the air channel can still be connected to the air guide channel through the annular groove 315, avoiding the accident of failure of the air valve 3 due to the rotation of the piston 32, thereby ensuring the stable connection of the gas circuit and improving the efficiency of the use of the air valve 3. Figure 3 and Figure 5 In the current position, the air channel of the piston 32 (specifically, the first air channel 321 to be described below) and the end of the air guide channel of the valve body 31 (specifically, the intake channel 313 to be described below) are directly connected and communicated. When the piston 32 rotates, even if the aforementioned air channel and the air guide channel are no longer directly opposite each other, the annular groove 315 (specifically, the first annular groove 3151 to be described below) will connect the two, thereby ensuring airflow connectivity.

[0039] Similarly, the annular groove 315 can also be provided on the outer wall of the piston 32, and located on the same circumferential cross-section of the air valve 3 as the port of the airway. This can also ensure that when the piston 32 is in the preset position, it can communicate with the air guide channel through the annular groove 315 regardless of its rotation position. Furthermore, the annular groove 315 can also be provided on both the outer wall of the piston 32 and the inner wall of the valve body 31, while ensuring unimpeded airflow between the airway and the air guide channel. This can reduce the space occupied by the annular groove 315 on the outer wall of the piston 32 and the inner wall of the valve body 31, respectively, thereby optimizing the space layout within the valve. Furthermore, since the annular groove 315 provided on the outer wall of the piston 32 is simpler to manufacture but requires more stringent airtightness, this application and the following description will use the annular groove 315 provided on the inner wall of the valve body 31 as an example. It is understood that the annular groove 315 can achieve the same effect regardless of whether it is provided on the inner wall of the valve body 31 or the outer wall of the piston 32. The embodiment of the annular groove 315 provided on the outer wall of the piston 32 will not be further described below.

[0040] It should be noted that the piston 32 may have one or more preset positions. If there is only one preset position, the air intake and exhaust of the air valve 3 can be selectively achieved at that position. Of course, the preset positions may also include an intake position and an exhaust position. In this case, the different preset positions of the piston 32 can result in different air path structures in the air valve 3 or different usage states of the air path.

[0041] For example, refer to Figures 1 to 4 In the axial direction of the annular groove 315, the notch size of the annular groove 315 may not be less than the size of the air guide channel for connecting the air channel end, that is, the notch width size of the annular groove 315 may be set to be greater than or equal to the width size of the end of the air guide channel in the axial direction of the air valve 3, so as to ensure that the edge of the annular groove 315 does not hinder the normal flow of gas between the air channel and the air guide channel, which is conducive to the stable connection between the air channel and the air guide channel.

[0042] For example, refer to Figures 1 to 4 In the radial direction of the annular groove 315, the depth of the annular groove 315 can be smaller than the size of the air guide channel, that is, the depth of the annular groove 315 on the side wall of the valve body 31 is set to be smaller than the width of the air guide channel in the side wall of the valve body 31, so as to avoid the annular groove 315 being too recessed to destroy the structural integrity of the air guide channel, thereby causing excessive impact on the side wall strength of the valve body 31.

[0043] In other embodiments, the annular groove 315 can be set to a trumpet-shaped structure, and the small-diameter end of the annular groove 315 can be connected to the end of the air guide channel for connecting to the air channel, and the large-diameter end can be used to connect to the air channel. The trumpet-shaped structure can make the gas flow from the air channel into the air guide channel more smoothly, preventing large changes in gas flow rate and large changes in air pressure, which will affect the stable effect of the air valve 3 on air pressure regulation.

[0044] In some embodiments, reference Figures 1 to 7 The valve body 31 may include an air inlet 311 and an air delivery port 312. The air guide channel may include an air inlet channel 313 and an air exhaust channel 314. The air inlet channel 313 may be used to connect the air inlet 311 with the air delivery port 312, and the air exhaust channel may be used to connect the air delivery port 312 with the air exhaust channel 314. The air exhaust channel 314 may be provided on the valve body 31 to connect the internal space of the air valve 3 with the external environment. Furthermore, the air channel may include a first air channel 321 and a second air channel 322. The first air channel 321 may connect the air inlet 311 with the air inlet channel 313 when in the air inlet position, and the second air channel 322 may connect the air delivery port 312 with the air exhaust channel 314 when in the air exhaust position.

[0045] In the above embodiment, the air valve 3 may have both an intake circuit and an exhaust circuit, wherein the intake circuit may be composed of the first air channel 321 of the piston 32 and the intake channel 313 of the valve body 31. After the gas enters the interior of the valve body 31 from the air inlet 311, the piston 32 may be moved to the intake position, and the first air channel 321 may be connected to the intake channel 313, so that the gas may pass through the intake circuit and output the gas through the air outlet 312, which may be used to increase the internal air pressure of the component connected to the output end of the air valve 3.

[0046] At the same time, the exhaust circuit can be formed by the second air channel 322 of the piston 32 and the exhaust channel 314 of the valve body 31. When the internal air pressure of the connecting element at the output end of the gas valve 3 is too high and needs to be reduced, the gas in the connecting element can enter the interior of the valve body 31 through the gas inlet 312, then move the piston 32 to the exhaust position, and connect the second air channel 322 with the exhaust channel 314. This allows the gas to pass through the exhaust circuit and be discharged outside the gas valve 3 through the exhaust channel 314, thus achieving a decompression effect on the connecting element. By switching between the two gas circuits, the internal air pressure of the connecting element at the output end of the gas valve 3 can be effectively adjusted.

[0047] It should also be noted that during the movement of the piston 32, only one of the intake position and the exhaust position can exist at the same time. In other positions, both the intake channel 313 and the exhaust channel 314 will be blocked by the piston 32. At this time, the valve body 31 has good airtightness and can achieve a pressure-maintaining effect. The switching between intake and exhaust can be achieved by simply adjusting the air pressure of the air inlet 311. The position switching is simple and convenient. Figure 2 The initial position of the piston 32, Figure 3 The intake position of the piston and Figure 4 Take the exhaust position of the piston as an example to illustrate. Figure 2 When the piston 32 is in the initial position, the air pressure of the air inlet 311 can be increased to push the piston 32 toward the air outlet 312, and when the piston 32 is moved to the initial position Figure 3 When the air inlet position is reached, the air inlet channel 313 is connected to the first air channel 321. At this time, air can be inflated into the output end. When the air pressure at the output end meets the demand, the air pressure at the air inlet 311 can be further increased to push the piston 32 to move to the Figure 3 Location and Figure 4 The middle position of the position, at this time, the air inlet channel 313 and the exhaust channel 314 are blocked by the piston 32, and there is no gas flowing in the valve body 31, and it enters the pressure holding state. When it is necessary to exhaust the output end, the air pressure of the air inlet 311 can be increased to push the piston 32 to move to Figure 5In the exhaust position, the exhaust channel 314 is connected to the second air channel 322. At this time, the gas at the output end can be discharged from the exhaust channel 314 to the external environment to achieve the exhaust function. When the regulating system is closed, the gas input to the air inlet 311 can be gradually reduced to close the air inlet 311. The reset structure in the valve body 31 will push the piston 32 back to the position after the gas at the output end is discharged. Figure 2 The initial position in the air pressure regulator is prepared for the next air pressure adjustment. The whole process is simple to operate and can be cyclically operated.

[0048] For example, refer to Figures 1 to 7 The annular groove 315 can be opened on the valve body 31, and the annular groove 315 can include a first annular groove 3151 and a second annular groove 3152, so that the position of the first annular groove 3151 can correspond to the end of the intake channel 313 for connecting to the first air channel 321, and the position of the second annular groove 3152 can correspond to the end of the exhaust channel 314 for connecting to the second air channel 322.

[0049] In the above embodiment, the first annular groove 3151 located at the end of the intake channel 313 and the second annular groove 3152 located at the end of the exhaust channel 314 can effectively ensure the stable connection between the two and the air channel in the piston 32 respectively, thereby achieving stable pressure regulation of the output end connecting element through the air valve 3, thereby improving the use efficiency and safety of the air valve 3.

[0050] In other embodiments, referring to the figures, the first air passage 321 of the piston 32 may include an axially extending portion and a radially extending portion, wherein the axially extending portion has an end a, which may be connected to the air inlet 311, and the radially extending portion has an end b, which is opened on the circumferential side wall of the piston 32 so as to be able to connect with the air intake channel 313 when the piston 32 moves to the air intake position.

[0051] At the same time, the second air channel 322 may also include an axially extending portion and a radially extending portion, wherein a radially extending portion is respectively provided at both ends of the axially extending portion of the second air channel 322, and one of the radially extending portions has an end c, which is arranged on the side of the piston 32 protruding toward the gas delivery port 312 to avoid the cooperation between the convex surface of the piston 32 and the sealing assembly 318. The other radially extending portion of the second air channel 322 has an end d, which can be arranged on the circumferential side wall of the piston 32 and avoid the end b in the axial direction so as to be able to communicate with the exhaust channel 314 when the piston 32 moves to the exhaust position.

[0052] For example, refer to Figures 2 to 5Multiple sealing rings 323 may be provided around the outer circumference of the piston 32. The sealing rings 323 may abut against the inner wall of the valve body 31. The sealing rings 323 may be configured such that, during movement of the piston 32, only the intake channel 313 is allowed to communicate with the intake port 311 via the first air channel 321, and only the exhaust channel 314 is allowed to communicate with the gas delivery port 312 via the second air channel 322. In this embodiment, the sealing rings 323 ensure airtightness between the first air channel 321 of the piston 32 and the intake channel 313, and between the second air channel 322 and the exhaust channel 314. This prevents gas from escaping through the gap between the piston 32 and the valve body 31 when the intake or exhaust circuits are activated. During movement, the piston 32 can only connect the intake channel 313 with the air inlet 311 through the first air channel 321, or the exhaust channel 314 with the air outlet 312 through the second air channel 322. These two connected states cannot coexist. Furthermore, the sealing rings on either side of the first air channel 321 ensure that gas from the air inlet 311 can enter the intake channel 313 only when the first air channel 321 is connected to the intake channel 313. In other positions, the sealing rings on either side of the first air channel 321 effectively isolate the airway opening of the first air channel 321 from the inner wall of the piston 32, ensuring an airtight connection between the piston 32 and the valve body 31. Similarly, the sealing rings on either side of the second air channel 322 have the same function and effect, which will not be described in detail here.

[0053] It should be noted that the sealing ring 323 can be fixed to the outer circumferential wall of the piston 32 and move synchronously with the piston 32. The connection method between the sealing ring 323 and the piston 32 includes but is not limited to bonding, welding, clamping or one-piece molding. It only needs to ensure that the sealing ring 323 will not fall off during the movement of the piston 32 and can also seal the gap between the piston 32 and the valve body 31. It will not be elaborated here.

[0054] For example, refer to Figures 2 to 5A partition space can be formed between any two adjacent sealing rings 323. The end of the first air channel 321 connected to the intake channel 313 can be located in one partition space, and the end of the second air channel 322 connected to the exhaust channel 314 can be located in another partition space. In this embodiment, the annular space enclosed by any two adjacent sealing rings 323, the outer peripheral wall of the piston 32, and the inner wall of the valve body 31 constitutes the partition space. This annular partition space prevents gas from escaping in the gap between the piston 32 and the valve body 31. Furthermore, the end b of the first air channel 321 connected to the intake channel 313 can be located in one partition space, and the end d of the second air channel 322 connected to the exhaust channel 314 can be located in a different partition space. This facilitates the isolation of the two by the sealing rings 323, preventing communication between the first and second air channels 321, 322 and airflow interference during gas circuit switching, thereby ensuring airtightness between the piston 32 and the valve body 31.

[0055] For example, refer to Figures 2 to 5 When the piston 32 is in a preset position, the notch of the first annular groove 3151 and the notch of the second annular groove 3152 can be respectively placed in the corresponding partition space to prevent the notch of the annular groove 315 from connecting adjacent partition spaces, destroying the air tightness inside the air valve 3 and reducing the safety of the use of the air valve 3.

[0056] For example, refer to Figures 2 to 5 In the axial direction of the first annular groove 3151, the notch size of the first annular groove 3151 can be smaller than the size of the corresponding partition space, and in the axial direction of the second annular groove 3152, the notch size of the second annular groove 3152 can be smaller than the size of the corresponding partition space, so that when the first air channel 321 is connected to the intake channel 313 through the first annular groove 3151, the notch of the first annular groove 3151 can be located in the partition space having the first air channel 321 port, or when the second air channel 322 is connected to the exhaust channel 314 through the second annular groove 3152, the notch of the second annular groove 3152 can be located in the partition space having the second air channel 322 port, preventing gas from escaping to other partition spaces, reducing the air tightness of the sealing ring 323, and ensuring a stable connection between the corresponding air channel and the air guide channel.

[0057] For example, refer to Figures 2 to 5 The number of sealing rings 323 can be at least five, and the five sealing rings 323 can form four partition spaces between the piston 32 and the valve body 31, wherein the two partition spaces relatively located in the middle can be used to respectively set the connection ports of the first air channel 321 and the second air channel 322, and the two partition spaces relatively located on the outside can be used to respectively form isolation zones outside the connection ports of the first air channel 321 and the second air channel 322, so as to further improve the air tightness between the piston 32 and the valve body 31.

[0058] In some embodiments, reference Figures 1 to 4 The valve body 31 may be adapted to be inserted into the cavity wall of the air cavity. The valve body 31 may include an air inlet 311 and an air delivery port 312 , wherein the air inlet 311 may be located outside the air cavity, and the air delivery port 312 may be located inside the air cavity.

[0059] In the above embodiment, the air valve 3 can be used to inflate or deflate a device having an air cavity structure. The air cavity has the characteristic of forming a closed space after the air valve 3 is connected, so that the air cavity can be adjusted by the air valve 3 to change the internal gas pressure. The air cavity here can be a cavity-type structure such as the inner cavity of a tire, the chamber of an airbag, the inner cavity of an inflatable membrane structure, etc. At the same time, the cavity wall of the output end of the valve body 31 can be configured to facilitate insertion into the air cavity. When in use, the air valve 3 can insert the output end having the gas delivery port 312 into the air cavity of the connecting element to directly input the gas outside the air cavity into the interior of the air cavity through the air valve 3. In a use environment with a relatively compact spatial layout, the air valve 3 can be directly used for gas connection without the need for other auxiliary structures, thereby optimizing the structural design of the gas circuit, simplifying the control method of the gas circuit, and helping to improve the use efficiency of the air valve 3. When the air valve is used in the structure of tire inflation and deflation, the tire and the rim enclose an air cavity, and the air valve can be directly installed on the rim. Compared with the method in related technologies of placing the entire air valve inside the air cavity (that is, inside the cavity formed by the tire and the rim), installing the air valve directly on the rim can greatly improve the efficiency of disassembly and assembly.

[0060] For example, refer to Figures 1 to 5 The air valve 3 may further include a valve cover 33, which may be mounted on one end of the valve body 31 where the air inlet 311 is provided. A docking hole 331 communicating with the air inlet 311 may be provided in the valve cover 33, and the docking hole 331 may be suitable for installing an air pipe or a pipe joint, so that the air inlet end of the air valve 3 can be simply plugged in and quickly connected to the air inlet pipeline through the valve cover 33 structure, which is beneficial to the installation and disassembly of the air inlet end circuit, simplifies the installation process, and improves the installation efficiency.

[0061] For example, refer to Figures 1 to 5 , the valve cover 33 can be screwed onto the outside of the valve body 31, and a sealing ring 332 can be provided between the valve cover 33 and the valve body 31. In this embodiment, the valve cover 33 is screwed onto the outside of the valve body 31 to ensure a stable connection between the two. At the same time, when connecting to different types of intake pipes, the type of valve cover 33 can be replaced so that the docking hole 331 of the valve cover 33 can be adaptively replaced according to the type of intake pipe, thereby improving the overall adaptability and installation convenience of the air valve 3. The sealing ring 332 can seal the gap between the valve cover 33 and the air inlet 311 of the valve body 31 to prevent gas from escaping from the gap between the two, thereby ensuring the air tightness of the air valve 3 when in use.

[0062] For example, the docking hole 331 can be a threaded hole to form a threaded connection with the air pipe or pipe joint of the air intake line. In an application environment with strict requirements on the safety of the air valve 3, the use of this threaded connection can ensure the spatial stability and firm connection of the air valve 3.

[0063] In some embodiments, reference Figures 1 to 5 The valve body 31 may include a main body and an insertion portion capable of extending into the air cavity, wherein the air valve 3 may further include a valve cap 34 mounted on the insertion portion. The valve cap 34 may be adapted to clamp a cavity wall (e.g., a wheel rim to be described later) with the main body. The valve cap 34 may be provided within the valve cap 34 to communicate with the gas delivery port 312. In this embodiment, the output end of the valve body 31 extends out of the insertion portion, which may be provided with the valve cap 34. The valve cap 34 may be formed into a rounded head structure that easily protrudes into the interior of the air cavity. During the process of inserting the air valve 3 into the air cavity, the valve cap 34 may enter the air cavity and prevent the air valve 3 from being dislodged from the air cavity. At the same time, to ensure the stable installation of the air valve 3 and the air cavity, the valve cap 34, after being placed into the air cavity, may clamp the cavity wall together with the main body of the valve body 31 to ensure a secure installation between the air valve 3 and the air cavity.

[0064] For example, refer to Figures 1 to 5 The side of the valve cap 34 that contacts the cavity wall may be provided with a first gasket 342, and the side of the valve body 31 that contacts the cavity wall may be provided with a second gasket 316. The valve cap 34 can clamp the cavity wall together with the second gasket 316 of the valve body 31 through the first gasket 342. After clamping the cavity wall, a stable airtight connection is formed, preventing the gas in the air cavity from escaping to the outside through the gap connecting the air valve 3 and the cavity wall. At the same time, the first gasket 342 and the second gasket 316 can be elastic sealing gaskets to further provide better sealing performance and elastic protection when the valve cap 34 and valve body 31 clamp the airbag wall, thereby extending the service life of the airbag 1 and ensuring the safe use of the airbag 1.

[0065] In other embodiments, reference Figures 2 to 6 A sealing assembly 318 may be provided in the valve body 31, wherein the sealing assembly 318 may include a core seat 3181, a core rod 3182, a limiting portion 3183, a first spring 3184 and a partition 3185, wherein the core seat 3181 may be threadedly connected to the inner wall of the gas transmission port 312, the core seat 3181 may be provided with a through hole, and the core rod 3182 may be movably arranged in the through hole of the core seat 3181, and the core rod 3182 may have a sealing position and a venting position. When the core rod 3182 is in the sealing position, the core rod 3182 and the core seat 3181 are sealed and connected to close the gas transmission port 312. When the core rod 3182 is in the venting position, the gas transmission port 312 can be opened to support gas circulation.

[0066] At the same time, a radially projecting stopper 3183 may be provided on the core rod 3182. A first spring 3184 may be sleeved on the core rod 3182. One end of the first spring 3184 is connected to the core seat 3181, and the other end is connected to the side of the stopper 3183 facing the gas delivery port 312, thereby providing an elastic limit to move the core rod 3182 and maintain it in the sealed position. The side of the stopper 3183 near the piston 32 may abut against a partition 3185, which may be connected to the inner wall of the valve body 31 to limit the range of movement of the core rod 3182 and prevent it from separating from the core seat 3181 toward the piston 32. The partition 3185 may be formed as a hollow structure to avoid obstructing gas flow. In this embodiment, the raised surface of the piston 32 can press against one end of the core rod 3182 to push the core rod 3182 from the sealing position to the venting position, so that the gas delivery port 312 is connected with the gas inlet 311. When the piston 32 is disconnected from the core rod 3182, the core rod 3182 can be reset to the sealing position by the first spring 3184, which is simple to operate and has reliable sealing.

[0067] In other embodiments, reference Figures 2 to 6 A second spring 319 may also be provided in the valve body 31, one end of which is connected to the inner wall of the valve body 31, and the other end is connected to the convex surface of the piston 32, for providing an elastic limit for the piston 32 to move toward the initial position. When the input air pressure of the air inlet 311 decreases or the air intake stops, the piston 32 can be pushed to return to the initial position, which is beneficial to the cyclic regulation of the air pressure in the air cavity.

[0068] In other embodiments, reference Figures 4 to 7 A blind hole 317 radially corresponding to the end of the air inlet channel 313 may be opened on the tube wall of the valve body 31 to facilitate the manufacturing and processing of the air inlet channel 313 and simplify the manufacturing process of the air valve 3.

[0069] In other embodiments, reference Figures 4 to 7 The valve body 31 may further include a silencer 3141 , and the silencer 3141 may be at least partially disposed in the exhaust channel 314 to reduce the noise of the airbag 1 during exhaust and provide a better driving experience.

[0070] A second aspect of the present disclosure provides a wheel, referring to Figure 7 The vehicle may include a rim 6, a tire, and the air valve 3 provided in the embodiment of the first aspect of the present disclosure. The air valve 3 may be mounted on the rim 6. The chamber formed by the rim and the tire is the aforementioned air cavity, wherein the air inlet 311 may be located on the outside of the tire (i.e., outside the aforementioned chamber), and the air outlet 312 may be located on the inside of the tire. In this embodiment, the air valve 3 can be used to control the inflation and deflation of the vehicle tire. The air valve 3 is mounted on the rim 6 and can be directly inserted into the air cavity of the tire to directly adjust the air pressure inside the tire, making the process of directly adjusting the pressure of the running wheel stable and efficient.

[0071] The third aspect embodiment of the present disclosure provides a vehicle, which may include the wheel provided by the second aspect embodiment of the present disclosure and have all the beneficial technical effects thereof.

[0072] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0073] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0074] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A gas valve, characterized in that: include: The valve body has a vent and a movable channel, wherein an air guide channel is opened in the inner wall of the movable channel; and a piston movably disposed in the movable channel of the valve body, wherein an air passage is provided inside the piston and is communicable with the air guide passage at a preset position, and when the piston is in the preset position, the vent is communicated with the air guide passage through the air passage; An annular groove is formed on the inner wall of the valve body and / or the outer wall of the piston along the circumferential direction, and the position of the annular groove corresponds to the end of the air guide channel for connecting with the air passage.

2. The gas valve according to claim 1, characterized in that In the axial direction of the annular groove, the notch size of the annular groove is not less than the size of the air guide channel for communicating with the air channel end.

3. The gas valve according to claim 1, characterized in that In the radial direction of the annular groove, the depth dimension of the annular groove is smaller than the dimension of the air guide channel.

4. The gas valve according to claim 1, characterized in that The valve body includes an air inlet and an air delivery port, and the air guide channel includes an air inlet channel for connecting the air inlet with the air delivery port, and an air exhaust channel for connecting the air delivery port with the external environment; The air passage includes a first air passage connecting the air intake port and the air intake channel at an air intake position, and a second air passage connecting the air delivery port and the air exhaust channel at an air exhaust position.

5. The gas valve according to claim 4, characterized in that The annular groove is opened in the valve body, and the annular groove includes a first annular groove and a second annular groove. The position of the first annular groove corresponds to the end of the intake channel for connecting to the first air channel, and the position of the second annular groove corresponds to the end of the exhaust channel for connecting to the second air channel.

6. The gas valve according to claim 5, characterized in that The outer ring of the piston is provided with a plurality of sealing rings, which abut against the inner wall of the valve body. The plurality of sealing rings are configured to allow the intake passage to communicate with the intake port only through the first air passage, and to allow the exhaust passage to communicate with the air delivery port only through the second air passage during movement of the piston.

7. The gas valve according to claim 6, characterized in that A partition space is formed between any two adjacent sealing rings, the end of the first air duct connected to the intake channel is arranged in one of the partition spaces, and the end of the second air duct connected to the exhaust channel is arranged in another of the partition spaces.

8. The gas valve according to claim 7, characterized in that When the piston is at the preset position, the notch of the first annular groove and the notch of the second annular groove are respectively placed in the corresponding partition spaces.

9. The gas valve according to claim 8, characterized in that In the axial direction of the first annular groove, the notch size of the first annular groove is smaller than the size of the corresponding partition space; in the axial direction of the second annular groove, the notch size of the second annular groove is smaller than the size of the corresponding partition space.

10. The gas valve according to claim 6, characterized in that The number of the sealing rings is at least five.

11. The gas valve according to any one of claims 1 to 10, characterized in that: The valve body is suitable for being inserted into the cavity wall of the air cavity. The valve body comprises an air inlet and an air delivery port. The air inlet is located outside the air cavity, and the air delivery port is located inside the air cavity.

12. The gas valve according to claim 11, characterized in that Also includes: A valve cover is mounted on one end of the valve body provided with the air inlet, and a docking hole communicating with the air inlet is provided in the valve cover, and the docking hole is suitable for installing an air pipe or a pipe joint.

13. The gas valve according to claim 12, characterized in that The valve cover is screwed to the outer side of the valve body, and a sealing ring is provided between the valve cover and the valve body.

14. The gas valve according to claim 12, characterized in that The docking hole is a threaded hole.

15. The gas valve according to claim 11, characterized in that The valve body includes a main body portion and an extending portion capable of extending into the air cavity. The gas valve further comprises a valve cap mounted on the extending portion, the valve cap being adapted to clamp the cavity wall with the main body portion, and a gas delivery channel communicating with the gas delivery port being provided in the valve cap.

16. The gas valve according to claim 15, characterized in that A first gasket is provided on the side of the valve cap that is in contact with the cavity wall, and a second gasket is provided on the side of the valve body that is in contact with the cavity wall.

17. A wheel, characterized in that: The invention comprises a rim, a tire and the air valve according to any one of claims 1 to 16.

18. A vehicle, characterized in that: Including the wheel described in claim 17.

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