Air valve assembly and vehicle seat

Abstract

The utility model discloses an air valve assembly which is connected to a shock absorber, the shock absorber comprises a track, a roller, a pin roller, a shear shank, an upper cover plate, a lower cover plate, an air bag, an air pipe and a damper, and the air valve assembly is characterized by comprising a valve body, a valve rod, a sealing ring, a connecting piece, a fixing piece, a fixing support, a connecting shaft, a sliding piece, a locking bolt and a gasket; the axis of the valve body is parallel to the lower cover plate, the air valve assembly is connected to the lower cover plate of the shock absorber in parallel through the fixing support, and a sliding piece on the air valve assembly is perpendicularly connected with a pin roller on the shock absorber. By the adoption of the air valve assembly and the placing mode, the stress mode of an existing valve rod can be changed, lateral stress of the valve rod is changed into axial stress, lateral acting force borne by the valve rod is weakened to the maximum extent, and the problem that a sealing ring of an existing shock absorber height control valve is seriously abraded is solved as much as possible.

Description

Technical Field

[0001] This utility model relates to the field of seats, specifically to a valve assembly. Background Technology

[0002] As described in patents 202221947275.2, 202011392406.0 and 202411368964.1, the height control valve of existing seat shock absorbers is generally set at an angle. This angled setting can ensure that the height control valve adjusts the position of its valve rod in real time with the rise and fall of the seat, thereby adjusting the air pressure of the air spring and achieving the shock absorption effect of the shock absorber.

[0003] The design itself is not fundamentally flawed. However, this tilted installation method causes the valve to experience a significant lateral force during the shock absorber's vertical movement. This results in the force exerted on the sealing ring by the valve stem not being along the axial direction, and the stress on different parts of the sealing ring being uneven. Consequently, the wear rate of the sealing ring varies across different areas. Because of this, air leakage is a common problem with existing height control valves after a period of use. The only solution is to continuously improve the material of the sealing ring to reduce wear and extend its service life. Utility Model Content

[0004] In view of the above problems, the present invention is proposed to provide a valve assembly and a vehicle seat that overcomes or at least partially solves the above problems.

[0005] According to one aspect of the present invention, a pneumatic valve assembly is provided, which is connected to a shock absorber. The shock absorber includes a track, rollers, rollers, scissor arms, an upper cover plate, a lower cover plate, an air bladder, an air pipe, and a damper. The pneumatic valve assembly includes a valve body, a valve stem, a sealing ring, a connector, a fixing member, a fixing bracket, a connecting shaft, a sliding member, a locking bolt, and a gasket.

[0006] Preferably, the valve body axis is parallel to the lower cover plate, the valve body is provided with an air inlet, an inflation port, a through hole and a fixed end, the air inlet is connected to an air source, the inflation port is connected to the air bag through the air pipe, and the through hole is open to the outside atmosphere;

[0007] Preferably, the valve stem is provided with an airflow channel and a groove, the valve stem moves axially within the valve body, and the outer diameter of the valve stem is smaller than the inner diameter of the fixing member;

[0008] The sealing rings include a first sealing ring, a second sealing ring, and a third sealing ring;

[0009] The fixed bracket has a special structure, which is provided with fixing holes, slots, guide strips and limiting strips. The number of guide strips is related to the number of sliding parts.

[0010] The air valve assembly is connected in parallel with the lower cover plate of the shock absorber through the fixing support, and the sliding member on the air valve assembly is connected perpendicularly with the roller on the shock absorber.

[0011] Preferably, the first sealing ring is arranged in the groove of the valve rod, the second sealing ring and the third sealing ring are arranged in the valve body, the connecting member is arranged between the second sealing ring and the third sealing ring, the inner diameters of the second sealing ring and the third sealing ring are smaller than the outer diameter of the valve rod, and the other end of the third sealing ring is provided with the fixing member for fixing.

[0012] Preferably, the fixing support is fixedly connected with the lower cover plate through the locking bolt and the limiting strip, the fixing support is fixedly connected with the valve body through the clamping groove and the fixing bolt, and the fixing support is slidingly connected with the sliding member through the guide strip.

[0013] Preferably, the sliding member is fixedly connected with the valve rod through the connecting shaft, the number of the sliding members is related to the axial movement of the valve rod, and the sliding member can freely slide along the guide strip.

[0014] Preferably, the tracks are arranged on the upper cover plate and the lower cover plate respectively, and the rollers are arranged in the tracks and can freely roll on the tracks.

[0015] Preferably, the roller is rotatably connected with the roller, the roller drives the roller to freely move on the track, and the roller is fixedly connected with the scissor frame.

[0016] Preferably, one end of the scissor frame is connected with the upper cover plate and the lower cover plate, and the other end of the scissor frame is fixedly connected with the roller.

[0017] Preferably, when the upper cover plate and the lower cover plate of the shock absorber move away from each other, the scissor frame drives the roller to move towards the center, the sliding member connected with the roller drives the valve rod to move away from the fixed end, a part of the airflow channel above the valve rod passes the third sealing ring to connect the inflation port with the outside, and the air bag enters the exhaust state.

[0018] Preferably, when the upper cover plate and the lower cover plate of the shock absorber move close to each other, the scissor frame drives the roller to move away from the center, the sliding member connected with the roller drives the valve rod to move close to the fixed end, a part of the airflow channel above the valve rod passes the second sealing ring to connect the inflation port with the air inlet, and the air bag enters the inflation state.

[0019] According to another aspect of the utility model, provide a kind of vehicle seat, the vehicle seat includes any one of the above-mentioned air valve assembly.

[0020] The utility model has the advantages that: the air valve assembly and the placement method can change the stress mode of the existing valve rod, change the lateral stress of the valve rod into axial stress, weaken the lateral force on the valve rod to the greatest extent, and solve the problem of severe wear of the sealing ring of the height control valve of the existing shock absorber.

[0021] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, which can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the utility model more obvious and easy to understand, the following specific embodiments of the utility model are described. BRIEF DESCRIPTION OF DRAWINGS

[0022] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become apparent to those of ordinary skill in the art. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered to be limiting on the utility model. Moreover, the same reference symbols are used throughout the drawings to represent the same parts. In the drawings:

[0023] Figure 1 A perspective view of the air valve assembly is shown

[0024] Figure 2 A partial structural view of the air valve assembly connected to the shock absorber is shown

[0025] Figure 3 An exploded view of the air valve assembly is shown

[0026] Figure 4 A cross-sectional view of the air valve in exhaust state is shown

[0027] Figure 5 A cross-sectional view of the air valve in inflation state is shown

[0028] Figure 6 A composition diagram of the vehicle seat is shown

[0029] REFERENCE NUMERALS:

[0030] 1, air valve assembly

[0031] 2, valve body

[0032] 2-1, air inlet

[0033] 2-2, inflation port

[0034] 2-3, through hole

[0035] 2-4, fixed end

[0036] 3. Valve stem

[0037] 3-1. Airflow Channel

[0038] 3-2, Groove

[0039] 4. Sealing ring

[0040] 4-1, First sealing ring

[0041] 4-2, Second sealing ring

[0042] 4-3, Third sealing ring

[0043] 5. Connectors

[0044] 6. Fasteners

[0045] 7. Fixed bracket

[0046] 7-1 Fixing Holes

[0047] 7-2, Card Slot

[0048] 7-3, Guide Strip

[0049] 7-4. Limiting strip

[0050] 8. Connecting shaft

[0051] 9. Sliding parts

[0052] 10. Shock absorbers

[0053] 11. Track

[0054] 12. Rollers

[0055] 13. Rollers

[0056] 14. Scissors rack

[0057] 15. Lower cover plate

[0058] 16. Airbag

[0059] 17. Dampers

[0060] 18. Vehicle seats

[0061] 19. Locking bolts

[0062] 20. Gasket Detailed Implementation

[0063] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is to be understood that the present disclosure can be embodied in various forms without being limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0064] It is to be understood that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or indirectly on or connected to the other element by way of another element. In addition, the connection can be for the purpose of electrical continuity or for the purpose of fixing.

[0065] It is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate directions or positions based on the directions or positions shown in the drawings, and are used for the purpose of describing the present application and simplifying the description, and thus cannot be construed as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be construed as limiting the present application.

[0066] In addition, the terms "first", "second", etc. are used only for the purpose of description and cannot be construed as indicating or implying relative importance or implying a specified number of technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0067] Embodiment One:

[0068] According to an embodiment of the present application, a gas valve assembly 1 is designed, Figure 1 a gas valve assembly is shown, Figure 2 a gas valve assembly is shown, Figure 3 a gas valve assembly is shown, as shown in Figure 1 , Figure 2 and Figure 3 The gas valve assembly 1 is connected to the shock absorber 10, and the shock absorber 10 includes a track 11, a roller 12, a roller 13, a scissor frame 14, an upper cover plate, a lower cover plate 15, a gas bag 16, a gas pipe and a damper 17, characterized in that the gas valve assembly 1 includes a valve body 2, a valve stem 3, a sealing ring, a connecting piece 5, a fixing piece 6, a fixing bracket 7, a connecting shaft 8, a sliding piece 9, a locking bolt 19, a gasket 20.

[0069] Specifically, the valve body 2 axis is parallel to the lower cover plate 15, the valve body 2 is arranged in parallel on the lower cover plate 15, the valve body 2 is provided with an air inlet 2-1, a charging port 2-2, a through hole 2-3 and a fixed end 2-4, the air inlet 2-1 is connected with the gas source, the charging port 2-2 is connected with the air bag 16 through the air pipe, the through hole 2-3 is communicated with the outside atmosphere, and the internal pressure of the through hole 2-3 is guaranteed to be the same as the outside;

[0070] Specifically, the valve stem 3 is provided with an air flow channel 3-1 and a groove 3-2 on the upper surface, the valve stem 3 moves axially in the valve body 2, and the outer diameter of the valve stem 3 is smaller than the inner diameter of the fixing part 6, so that the two ends of the fixing part 6 are communicated at this time, and the gas can directly pass through the fixing part 6.

[0071] Specifically, the sealing ring 4 includes a first sealing ring 4-1, a second sealing ring 4-2 and a third sealing ring 4-3.

[0072] Specifically, the fixed support 7 is of a special structure, the fixed support 7 is provided with a fixed hole 7-1, a clamping groove 7-2, a guide strip 7-3 and a limiting strip 7-4, the number of the guide strips 7-3 is related to the number of the sliding members 9, the guide strips 7-3 can be arranged on one side of the valve stem 3, and the guide strips 7-3 can also be arranged on both sides of the valve stem 3.

[0073] Specifically, the air valve assembly 1 is connected in parallel on the lower cover plate 15 of the shock absorber 10 through the fixed support 7, and the sliding member 9 on the air valve assembly 1 is connected perpendicularly with the roller 13 on the shock absorber 10.

[0074] It can be seen that the air valve assembly 1 is parallel to the lower cover plate 15, the valve body 2 of the air valve assembly 1 is arranged in parallel on the lower cover plate 15, and the sliding member 9 of the air valve assembly 1 is arranged perpendicularly on the roller 13.

[0075] In some embodiments of the utility model, Figure 4 The air valve exhaust state cross-sectional view is shown as Figure 3 And Figure 4 As shown in the first sealing ring 4-1 is arranged in the groove 3-2 of the valve stem 3, the second sealing ring 4-2 and the third sealing ring 4-3 are arranged in the valve body 2, the connecting part 5 is arranged between the second sealing ring 4-2 and the third sealing ring 4-3, the inner diameter of the second sealing ring 4-2 and the third sealing ring 4-3 is less than the outer diameter of the valve stem 3, and the other end of the third sealing ring 4-3 is provided with the fixing part 6 for fixing.

[0076] It can be seen that the sealing ring 4 cooperates with the valve rod 3 to divide the valve body 2 into four cavities, and movement of the valve rod 3 can also connect the cavities through the airflow channel 3-1.

[0077] In some embodiments of the utility model, as shown in Figure 2 and Figure 3 The fixed support 7 is fixedly connected with the lower cover plate 15 through the locking bolt 19 and the limiting strip 7-4, is arranged in parallel on the lower cover plate 15, is fixedly connected with the valve body 2 through the clamping groove 7-2 and the fixed bolt, and the valve body 2 is indirectly arranged in parallel on the lower cover plate 15 through the fixed support 7.

[0078] In some embodiments of the utility model, as shown in Figure 1 and Figure 2 The sliding piece 9 is fixedly connected with the valve rod 3 through the connecting shaft 8, the valve rod 3 is only subjected to the axial force of the sliding piece 9 and is not subjected to other lateral forces, the number of the sliding pieces 9 is related to the axial movement of the valve rod 3, the number of the sliding pieces 9 is arranged to ensure that the valve rod is only subjected to the axial force and is not subjected to the lateral force, the setting position of the sliding pieces 9 can be one side of the valve rod or both sides of the valve rod, the valve rod 3 moves synchronously with the movement of the sliding piece 9, and the sliding piece 9 can freely slide along the direction of the guide strip 7-3.

[0079] In some embodiments of the utility model, as shown in Figure 2 The track 11 is arranged on the upper cover plate and the lower cover plate 15 respectively, and the roller 12 is connected inside the track 11, and the roller 12 can freely roll on the track 11.

[0080] In some embodiments of the utility model, as shown in Figure 2 The roller 13 is rotatably connected with the roller 12, the roller 13 drives the roller 12 to freely move on the track 11, and the roller 13 is fixedly connected with the scissor frame 14.

[0081] It can be seen that the roller 13 is parallel to the lower cover plate 15, and the roller 13 moves together under the action of the scissor frame 14.

[0082] In some embodiments of the utility model, as shown in Figure 2 One end of the scissor frame 14 is connected with the upper cover plate and the lower cover plate 15, the other end of the scissor frame 14 is fixedly connected with the roller 13, and it can be seen that the roller 13 moves together under the action of the scissor frame 14.

[0083] In some embodiments of the present application, as shown in Figure 2 and Figure 4 When the upper cover plate and the lower cover plate 15 of the shock absorber 10 are away from each other, the scissor frame 14 drives the roller 13 to move towards the center, the sliding piece 9 connected to the roller 13 drives the valve rod 3 to move away from the fixed end 2-4, and when a part of the airflow passage 3-1 above the valve rod 3 passes through the third sealing ring 4-3 to connect the inflation port 2-2 and the outside, the gas in the air bag 16 is discharged to the outside through the inflation port 2-2 and the fixed part 6, and the air bag 16 enters the exhaust state.

[0084] As can be seen, when the shock absorber 10 is suddenly moved upward, the air valve assembly 1 controls the air bag 16 to exhaust until the shock absorber 10 returns to the comfortable height and controls the valve rod 3 to return to the appropriate position, and the air bag 16 stops exhausting.

[0085] In some embodiments of the present application, Figure 5 a cross-sectional view of the air valve inflation state is shown, as shown in Figure 2 and Figure 5 When the upper cover plate and the lower cover plate 15 of the shock absorber 10 are close to each other, the scissor frame 14 drives the roller 13 to move away from the center, the sliding piece 9 connected to the roller 13 drives the valve rod 3 to move towards the fixed end 2-4, and when a part of the airflow passage 3-1 above the valve rod 3 passes through the second sealing ring 4-2 to connect the inflation port 2-2 and the air inlet 2-1, the gas in the air source enters the air bag 16 through the air inlet 2-1 and the inflation port 2-2, and the air bag 16 enters the inflation state.

[0086] As can be seen, when the shock absorber 10 is suddenly moved downward, the air valve assembly 1 controls the air bag 16 to inflate until the shock absorber 10 returns to the comfortable height and controls the valve rod 3 to return to the appropriate position, and the air bag 16 stops inflating.

[0087] Embodiment two:

[0088] According to another embodiment of the present application, a vehicle seat 18 is designed, Figure 6 a vehicle seat assembly diagram is shown, as shown in Figure 6 The vehicle seat 18 includes any one of the above-mentioned air valve assemblies 1.

[0089] Therefore, the force on the valve rod is changed from a lateral force to an axial force, the lateral force on the valve rod is weakened to the maximum extent, and the problem of severe wear of the sealing ring of the height control valve of the existing shock absorber is solved as much as possible.

[0090] The preferred embodiments of the utility model are merely used for limiting the protection scope of the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A valve assembly connected to a shock absorber, the shock absorber comprising a track, rollers, rollers, a scissor bracket, an upper cover plate, a lower cover plate, an air bladder, an air tube, and a damper, characterized in that, The valve assembly includes a valve body, valve stem, sealing ring, connector, fixing component, fixing bracket, connecting shaft, sliding component, locking bolt, and gasket; The valve body axis is parallel to the lower cover plate. The valve body is provided with an air inlet, an inflation port, a through hole and a fixed end. The air inlet is connected to an air source. The inflation port is connected to the air bag through the air pipe. The through hole is open to the outside atmosphere. The valve stem is provided with an airflow channel and a groove, the valve stem moves axially within the valve body, and the outer diameter of the valve stem is smaller than the inner diameter of the fixing component; The sealing rings include a first sealing ring, a second sealing ring, and a third sealing ring; The fixed bracket has a special structure, which is provided with fixing holes, slots, guide strips and limiting strips. The number of guide strips is related to the number of sliding parts. The air valve assembly is connected in parallel to the lower cover plate of the shock absorber via the fixed bracket, and the sliding element on the air valve assembly is perpendicularly connected to the roller on the shock absorber.

2. The valve assembly as described in claim 1, characterized in that, The first sealing ring is disposed in the groove of the valve stem, the second sealing ring and the third sealing ring are disposed in the valve body, the connecting member is disposed between the second sealing ring and the third sealing ring, the inner diameter of the second sealing ring and the third sealing ring is smaller than the outer diameter of the valve stem, and the other end of the third sealing ring is provided with the fixing member for fixation.

3. The valve assembly as described in claim 1, characterized in that, The fixed bracket is fixedly connected to the lower cover plate by the fixing bolt and the limiting strip. The fixed bracket is fixedly connected to the valve body by the slot and the locking bolt. The fixed bracket is slidably connected to the sliding member by the guide strip.

4. The valve assembly as described in claim 1, characterized in that, The sliding member is fixedly connected to the valve stem via the connecting shaft. The number of sliding members is related to the axial movement of the valve stem. The sliding member can slide freely along the guide bar.

5. The valve assembly as described in claim 1, characterized in that, The tracks are respectively set on the upper cover plate and the lower cover plate, and the rollers are connected inside the tracks, allowing the rollers to roll freely on the tracks.

6. The valve assembly as claimed in claim 1, characterized in that, The roller is rotatably connected to the wheel, and the roller drives the wheel to move freely on the track. The roller is fixedly connected to the scissor frame.

7. The valve assembly as claimed in claim 1, characterized in that, One end of the scissor bracket is connected to the upper cover plate and the lower cover plate, and the other end of the scissor bracket is fixedly connected to the roller.

8. The valve assembly as claimed in claim 1, characterized in that, When the upper and lower cover plates of the shock absorber move away from each other, the scissor bracket drives the roller to move towards the center, and the sliding member connected to the roller drives the valve stem to move away from the fixed end. When a part of the airflow channel on the valve stem passes the third sealing ring and connects the inflation port to the outside, the airbag begins to vent and enters the venting state.

9. The valve assembly as claimed in claim 1, characterized in that, When the upper and lower cover plates of the shock absorber approach each other, the scissor bracket drives the roller to move away from the center, and the sliding member connected to the roller drives the valve stem to move closer to the fixed end. When a part of the airflow channel on the valve stem passes the second sealing ring and connects the inflation port and the air inlet, the airbag begins to inflate and enters the inflation state.

10. A vehicle seat, characterized in that, The vehicle seat includes any one of the valve assemblies described in claims 1-9.

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