Air valve assembly and vehicle seat

Abstract

The application discloses a gas valve assembly which is connected to a shock absorber, and the shock absorber comprises a track, a roller, a roller pin, a scissor frame, an upper cover plate, a lower cover plate, a gas bag, a gas pipe and a damper, and the gas valve assembly comprises 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 valve body axis is parallel to the lower cover plate; the gas valve assembly is connected to the lower cover plate of the shock absorber in parallel through the fixing support; and the sliding piece on the gas valve assembly is connected to the roller pin on the shock absorber in perpendicular. By using the gas valve assembly and the placement mode, the stress mode of the existing valve rod can be changed, the valve rod is changed from lateral stress to axial stress, the lateral force acting on the valve rod is weakened to the maximum extent, and the problem of serious wear of the sealing ring of the height control valve of the existing shock absorber is solved as much as possible.

Description

Technical Field

[0001] This invention relates to the field of seats, and more 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 stem 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. Summary of the Invention

[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 including a track, rollers, rollers, scissor arms, upper cover plate, lower cover plate, air bladder, air pipe and damper, the pneumatic valve assembly including a valve body, valve stem, sealing ring, connector, fixing member, fixing bracket, connecting shaft, sliding member, locking bolt and 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 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.

[0011] Preferably, 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.

[0012] Preferably, the fixed bracket is fixedly connected to the lower cover plate by the locking bolt and the limiting strip, the fixed bracket is fixedly connected to the valve body by the slot and the fixing bolt, and the fixed bracket is slidably connected to the sliding member by the guide strip.

[0013] Preferably, 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, and the sliding member can slide freely along the guide bar.

[0014] Preferably, the tracks are respectively disposed 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.

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

[0016] Preferably, 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.

[0017] Preferably, when the upper and lower cover plates of the shock absorber are far apart, 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 portion of the airflow channel on the valve stem passes the third sealing ring and connects the inflation port to the outside, the airbag enters the deflation state.

[0018] Preferably, when the upper and lower cover plates of the shock absorber are close to 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 portion of the airflow channel on the valve stem passes the second sealing ring and connects the inflation port and the air inlet, the airbag enters the inflation state.

[0019] According to another aspect of the present invention, a vehicle seat is provided, the vehicle seat including any one of the above-described valve assemblies.

[0020] The beneficial effects of this invention are: by adopting this valve assembly and placement method, the force-bearing mode of the existing valve stem can be changed, so that the valve stem is subjected to axial force instead of lateral force, thereby minimizing the lateral force on the valve stem and solving the problem of severe wear of the sealing ring of the existing shock absorber height control valve as much as possible.

[0021] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

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

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

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

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

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

[0028] Figure 6 A diagram showing the vehicle's seating configuration is provided.

[0029] Figure label:

[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 now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0064] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component. Furthermore, a connection can be for both fixing and circuit connection purposes.

[0065] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0067] Example 1:

[0068] According to one embodiment of the present invention, a valve assembly 1 is designed. Figure 1 A perspective view of the valve assembly is shown. Figure 2 A partial structural diagram of the air valve assembly connected to the shock absorber is shown. Figure 3 An exploded view of the valve assembly is shown, as follows: Figure 1 , Figure 2 and Figure 3 As shown, the air valve assembly 1 is connected to the shock absorber 10. The shock absorber 10 includes a track 11, rollers 12, rollers 13, scissor brackets 14, an upper cover plate, a lower cover plate 15, an air bladder 16, an air pipe, and a damper 17. The air valve assembly 1 is characterized in that it includes a valve body 2, a valve stem 3, a sealing ring, a connector 5, a fixing member 6, a fixing bracket 7, a connecting shaft 8, a sliding member 9, a locking bolt 19, and a gasket 20.

[0069] Specifically, the axis of the valve body 2 is parallel to the lower cover plate 15, and the valve body 2 is arranged parallel to the lower cover plate 15. The valve body 2 is provided with an air inlet 2-1, an inflation port 2-2, a through hole 2-3, and a fixed end 2-4. The air inlet 2-1 is connected to an air source, the inflation port 2-2 is connected to the air bag 16 through the air pipe, and the through hole 2-3 is connected to the outside atmosphere to ensure that the air pressure inside the through hole 2-3 is the same as that outside.

[0070] Specifically, the valve stem 3 is provided with an airflow channel 3-1 and a groove 3-2. The valve stem 3 moves axially within the valve body 2. The outer diameter of the valve stem 3 is smaller than the inner diameter of the fixing member 6, indicating that the two ends of the fixing member 6 are connected at this time, and the gas can pass directly through the fixing member 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 bracket 7 has a special structure. The fixed bracket 7 is provided with a fixing hole 7-1, a slot 7-2, a guide bar 7-3 and a limiting bar 7-4. The number of guide bars 7-3 is related to the number of sliding parts 9. The guide bars 7-3 can be provided on one side of the valve stem 3, or the guide bars 7-3 can be provided on both sides of the valve stem 3 at the same time.

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

[0074] As can be seen, the air valve assembly 1 is parallel to the lower cover plate 15. The valve body 2 of the air valve assembly 1 is not only parallel to the lower cover plate 15, but the sliding member 9 of the air valve assembly 1 is also perpendicular to the roller 13.

[0075] In some embodiments of the present invention Figure 4 A cross-sectional view of the exhaust valve is shown, such as... Figure 3 and Figure 4 As shown, the first sealing ring 4-1 is disposed in the groove 3-2 of the valve stem 3, the second sealing ring 4-2 and the third sealing ring 4-3 are disposed in the valve body 2, the connecting member 5 is disposed 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 smaller 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 member 6 for fixing.

[0076] As can be seen, the sealing ring 4, together with the valve stem 3, divides the valve body 2 into 4 cavities, and the movement of the valve stem 3 can connect the various cavities through the airflow channel 3-1.

[0077] In some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the fixed bracket 7 is fixedly connected to the lower cover plate 15 by the locking bolt 19 and the limiting strip 7-4. The fixed bracket 7 is arranged parallel to the lower cover plate 15. The fixed bracket 7 is fixedly connected to the valve body 2 by the slot 7-2 and the fixing bolt. The valve body 2 is indirectly connected to the fixed bracket 7 and arranged parallel to the lower cover plate 15. The fixed bracket 7 is slidably connected to the sliding member 9 by the guide strip 7-3.

[0078] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the sliding member 9 is fixedly connected to the valve stem 3 via the connecting shaft 8. The valve stem 3 is only subjected to the axial force of the sliding member 9 and not to other lateral forces. The number of sliding members 9 is related to the axial movement of the valve stem 3. The number of sliding members 9 should be set to ensure that the valve stem is only subjected to the axial force and not to the lateral force. The sliding member 9 can be set on one side of the valve stem or on both sides of the valve stem. The valve stem 3 moves synchronously with the movement of the sliding member 9. The sliding member 9 can slide freely along the direction of the guide bar 7-3.

[0079] In some embodiments of the present invention, such as Figure 2 As shown, the tracks 11 are respectively disposed on the upper cover plate and the lower cover plate 15, and the rollers 12 are connected inside the tracks 11, and the rollers 12 can roll freely on the tracks 11.

[0080] In some embodiments of the present invention, such as Figure 2 As shown, the roller 13 is rotatably connected to the roller 12, the roller 13 drives the roller 12 to move freely on the track 11, and the roller 13 is fixedly connected to the scissor frame 14.

[0081] As can be seen, the roller 13 is parallel to the lower cover plate 15, and the roller 13 moves together with the scissor frame 14.

[0082] In some embodiments of the present invention, such as Figure 2 As shown, one end of the scissor frame 14 is connected to the upper cover plate and the lower cover plate 15, and the other end of the scissor frame 14 is fixedly connected to the roller 13. It can be seen that the roller 13 moves together with the scissor frame 14.

[0083] In some embodiments of the present invention, such as Figure 2 and Figure 4 As shown, when the upper cover plate and lower cover plate 15 of the shock absorber 10 move away from each other, the scissor bracket 14 drives the roller 13 to move towards the center, and the sliding member 9 connected to the roller 13 drives the valve stem 3 to move away from the fixed end 2-4. When a part of the airflow channel 3-1 on the valve stem 3 passes the third sealing ring 4-3 and connects the inflation port 2-2 with the outside, the gas in the airbag 16 is discharged into the outside through the inflation port 2-2 and the fixed member 6, and the airbag 16 enters the exhaust state.

[0084] As can be seen, when the shock absorber 10 suddenly moves upward, the air valve assembly 1 is controlled by the sliding member 9 to vent the air bag 16 until the shock absorber 10 returns to a comfortable height and the valve stem 3 is controlled to return to the appropriate position, at which point the air bag 16 stops venting.

[0085] In some embodiments of the present invention Figure 5 A cross-sectional view of the valve in its inflation state is shown, as follows: Figure 2 and Figure 5 As shown, when the upper cover plate and lower cover plate 15 of the shock absorber 10 approach each other, the scissor bracket 14 drives the roller 13 to move away from the center, and the sliding member 9 connected to the roller 13 drives the valve stem 3 to move towards the fixed end 2-4. When a part of the airflow channel 3-1 on the valve stem 3 passes the second sealing ring 4-2 and connects the inflation port 2-2 and the air inlet 2-1, the gas in the air source enters the airbag 16 through the air inlet 2-1 and the inflation port 2-2, and the airbag 16 enters the inflation state.

[0086] As can be seen, when the shock absorber 10 suddenly moves downward and rises, the air valve assembly 1 is controlled by the sliding member 9 to inflate the airbag 16 until the shock absorber 10 returns to a comfortable height and the valve stem 3 is controlled to return to the appropriate position, at which point the airbag 16 stops inflating.

[0087] Example 2:

[0088] According to another embodiment of the present invention, a vehicle seat 18 is designed. Figure 6 A diagram showing the vehicle's seating configuration is provided, such as... Figure 6 As shown, the vehicle seat 18 includes any one of the aforementioned valve assemblies 1.

[0089] In summary, by adopting this valve assembly and placement method, the force distribution on the existing valve stem can be changed from lateral force to axial force, thereby minimizing the lateral force on the valve stem and resolving the problem of severe wear on the sealing ring of the existing shock absorber height control valve as much as possible.

[0090] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

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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