Height control valve for low suspension stroke and seat

Abstract

The utility model discloses a height control valve for low suspension stroke and a seat, the height control valve for low suspension stroke comprises a valve body and a valve rod, the height control valve is characterized in that the valve body is provided with a second rotary connecting piece, an air source connecting port, an air bag connecting port, a step and an air leakage hole, the step divides the valve body into a valve body top and a valve body bottom; the valve rod is provided with a first rotary connecting piece and a groove, and the groove is in a single shape; the height control valve for the low suspension stroke further comprises a first sealing ring, a second sealing ring, a third sealing ring, a supporting piece and an end cover. By adopting the height control valve for the low suspension stroke and the seat, the problems that the valve rod is far away from the valve body and automatically enters other working states along with continuous input of gas and the like can be effectively solved; multiple sections of narrow grooves in the original design are unified into one structure, so that the machining difficulty can be reduced, and various production costs, such as raw material cost, machining difficulty, subsequent manual grinding treatment and the like, can be greatly saved.

Description

Technical Field

[0001] The utility model relates to the field of air valves, in particular to a height control valve used on a low suspension travel. Background Art

[0002] This patent is an improvement of patent 202022847934.2 applied for on December 1, 2020. The original patent application solved the problems of seat height adjustment and suspension adjustment, and provided a comfortable driving experience for light truck seats, light passenger and cargo vehicles (such as pickup truck seats), passenger car seats, etc.

[0003] However, in actual applications, the design of this structural part is not ideal. For example, when the seat height control valve is not in an inflated state, the gas in the air source connecting port will continue to enter the first air flow chamber, and the valve stem will not be able to reset due to the influence of the air pressure but will also move away from the valve body. With the continuous input of gas, it will automatically enter the inflation state and the exhaust state successively; if the seat height control valve is in an inflated state, when the gas in the airbag connecting port gradually increases and the air pressure is higher than the air pressure in the first air flow chamber, part of the gas in the air source connecting port will enter the first air flow chamber, and the valve stem will be affected by the air pressure and move away from the valve body and finally enter the exhaust state; the original support design has a low inflation efficiency, and the improved structure has a higher inflation efficiency; the original valve stem groove is composed of a first groove and a second groove. This structure is not ideal in actual production applications and will only increase processing difficulty and production costs. Utility Model Content

[0004] In view of the above problems, the present invention is proposed to provide a height control valve and a seat for low suspension travel that overcome the above problems or at least partially solve the above problems.

[0005] According to one aspect of the utility model, a height control valve for low suspension travel is provided, the height control valve for low suspension travel comprising a valve body and a valve stem, characterized in that the valve body is provided with a second rotating connector, an air source connection port, an air bag connection port, a step and an air leakage hole, the step dividing the valve body into a valve body top and a valve body bottom;

[0006] The valve stem is provided with a first rotating connection piece and a groove;

[0007] The height control valve for low suspension travel also includes a first sealing ring, a second sealing ring, a third sealing ring, a support member and an end cover.

[0008] Preferably, the first sealing ring and the second sealing ring are the same sealing ring, and the first sealing ring is arranged on the step.

[0009] Preferably, the third sealing ring is always located between the gas source connection port and the second rotating connection member during operation.

[0010] Preferably, the inner diameter of the support member is larger than the outer diameter of the valve stem, the outer diameter of the support member is smaller than the inner diameter of the top of the valve body, a plurality of grooves and a plurality of through holes are arranged on the surface of the support member, and the support member is arranged between the first sealing ring and the second sealing ring.

[0011] Preferably, a through hole is provided on the end cover, the end cover is adaptively fixed to the top end of the valve body, and the valve stem can axially reciprocate through the through hole.

[0012] Preferably, when the groove is located between the first sealing ring and the second sealing ring, the low suspension stroke height control valve is in a balanced state.

[0013] Preferably, when the valve stem moves toward the bottom of the valve body, when the groove is located at both ends of the first sealing ring, the gas in the air source connecting port passes through the groove into the airbag connecting port to complete inflation. At this time, the low suspension stroke height control valve is in an inflated state.

[0014] Preferably, when the valve stem moves toward the top of the valve body, when the groove is located at both ends of the second sealing ring, the gas inside the airbag connecting port enters the outside through the groove and the end cover to complete exhaust. At this time, the low suspension stroke height control valve is in an exhaust state.

[0015] According to one aspect of the utility model, a seat is provided, which includes the height control valve for low suspension stroke, and the seat is fixedly connected to the height control valve for low suspension stroke through the first rotating connector and the second rotating connector. The height control valve for low suspension stroke performs reciprocating motion as the seat moves up and down to freely switch between three states.

[0016] The beneficial effects of the utility model are: the use of the height control valve and seat for low suspension stroke can effectively solve the problem that the valve stem moves away from the valve body and automatically enters other working states as the gas continues to be input; the original design of multiple narrow grooves is unified into one structure, which can not only reduce the processing difficulty, but also greatly save various production costs, such as raw material costs, processing difficulty, and subsequent manual frosting treatment.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0019] Figure 1 A perspective view of a height control valve for low suspension travel is shown;

[0020] Figure 2 An exploded view of a height control valve for low suspension travel is shown;

[0021] Figure 3 A cross-sectional view of the balanced state of the height control valve for low suspension travel is shown;

[0022] Figure 4 A cross-sectional view of the inflation state of the height control valve for low suspension travel is shown;

[0023] Figure 5 A cross-sectional view of the exhaust state of the height control valve for low suspension travel is shown;

[0024] Figure 6 A seating composition diagram is shown;

[0025] Reference numerals:

[0026] 1. Height control valve for low suspension travel

[0027] 2. Valve body

[0028] 2-1. Second rotating connector

[0029] 2-2. Gas source connection port

[0030] 2-3. Airbag connection port

[0031] 2-4. Stairs

[0032] 2-5. Leakage hole

[0033] 2-6. Top of valve body

[0034] 2-7. Bottom of valve body

[0035] 3. Valve stem

[0036] 3-1. First rotating connector

[0037] 3-2. Groove

[0038] 4. The first sealing ring

[0039] 5. Second sealing ring

[0040] 6. The third sealing ring

[0041] 7. Support parts

[0042] 8. End cap

[0043] 9. Seats DETAILED DESCRIPTION

[0044] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0045] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, connection can be used for fixing or for circuit connection.

[0046] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] Embodiment 1:

[0049] According to one aspect of the utility model, a height control valve 1 for low suspension travel is designed. Figure 1 A perspective view of a height control valve for low suspension travel is shown. Figure 2 An exploded view of a height control valve for low suspension travel is shown. Figure 1 and Figure 2As shown, the height control valve 1 for low suspension travel comprises a valve body 2 and a valve stem 3, and is characterized in that the valve body 2 is provided with a second rotating connector 2-1, an air source connection port 2-2, an air bag connection port 2-3, a step 2-4 and an air leakage hole 2-5, and the step divides the valve body into a valve body top 2-6 and a valve body bottom 2-7, and the inner diameter of the valve body top 2-6 is larger than the inner diameter of the valve body bottom 2-7;

[0050] Further, the valve stem 3 is provided with a first rotating connector 3-1 and a groove 3-2, wherein the groove 3-2 is a groove of a single shape, and the shape of the groove 3-2 can be arc-shaped, rectangular, trapezoidal, triangular, circular, etc.;

[0051] Specifically, the low suspension stroke height control valve 1 further includes a first sealing ring 4 , a second sealing ring 5 , a third sealing ring 6 , a support member 7 and an end cover 8 .

[0052] It can be seen that the height control valve for low suspension travel is improved in multiple positions. The improved structure can effectively solve the problem that as the gas continues to be input, the valve stem moves away from the valve body and automatically enters other working states; the change in the breathable structure of the support member can further improve the inflation efficiency.

[0053] In some embodiments of the present invention, Figure 3 The cross-sectional view of the balanced state of the height control valve for low suspension travel is shown as Figure 3 As shown, the first sealing ring 4 and the second sealing ring 5 are the same sealing rings, and the size and shape of the first sealing ring 4 and the second sealing ring 5 are the same. The inner diameter of the first sealing ring 4 is slightly smaller than the outer diameter of the valve stem 3, and the outer diameter of the first sealing ring 4 is slightly larger than the inner diameter of the valve body top 2-6, and the first sealing ring 4 is arranged on the step 2-4.

[0054] In some embodiments of the present invention, Figure 3 As shown, the third sealing ring 6 and the first sealing ring 4 are two different sealing rings, which are different in size. The inner diameter of the third sealing ring 6 is slightly smaller than the outer diameter of the valve stem 3, and the outer diameter of the third sealing ring 6 is slightly larger than the inner diameter of the valve body bottom 2-7. The third sealing ring 6 is always located between the air source connection port 2-2 and the second rotating connector 2-1 during normal operation, and the third sealing ring 6 will not cross the air source connection port 2-2 under normal circumstances.

[0055] It can be seen that the setting of different sizes of the sealing rings can ensure that when the valve stem moves axially, the internal gas cannot flow freely except through the groove on the valve stem; the setting of the third sealing ring can also limit the gas in the air source interface from entering the bottom of the valve body to push the valve stem to be forced to move axially, thereby causing the height control valve for low suspension stroke to automatically enter other working states.

[0056] In some embodiments of the present invention, Figure 3 As shown, the inner diameter of the support member 7 is larger than the outer diameter of the valve stem 3, and the outer diameter of the support member 7 is smaller than the inner diameter of the valve body top 2-6. A plurality of grooves and a plurality of through holes are arranged on the surface of the support member 7. The support member 7 is arranged between the first sealing ring 4 and the second sealing ring 5. The number of the support members 7 is related to their own size and the specific usage space.

[0057] It can be seen that the arrangement of the multiple grooves and through holes of the support member can effectively improve the gas passing efficiency.

[0058] In some embodiments of the present invention, Figure 3 As shown, the end cover 8 is provided with a through hole, and the end cover 8 is adaptively fixed to the end of the top 2-6 of the valve body, and the valve stem 3 can axially reciprocate through the through hole.

[0059] It can be seen that the end cover cooperates with the step to fix the positions of the first sealing ring, the support member and the second sealing ring to prevent them from sliding randomly.

[0060] In some embodiments of the present invention, Figure 3 As shown, when the groove 3-2 is located between the first sealing ring 4 and the second sealing ring 5, the gas in the air source connection port 2-2 cannot enter the airbag connection port 2-3 to complete inflation, and the gas in the airbag connection port 2-3 cannot enter the end cover 8 to be discharged to the outside, and the low suspension stroke height control valve 1 is in a balanced state.

[0061] In some embodiments of the present invention, Figure 4 A cross-sectional view of the inflation state of the height control valve for low suspension travel is shown, as Figure 4 As shown, when the valve stem 3 moves toward the bottom 2-7 of the valve body, when the groove 3-2 is located at both ends of the first sealing ring 4, the gas in the air source connecting port 2-2 enters the airbag connecting port 2-3 through the groove 3-2 and the through hole of the support member 7 to complete inflation, and the gas in the airbag connecting port 2-3 cannot enter the end cover 8 to be discharged to the outside. At this time, the low suspension stroke height control valve 1 is in an inflated state.

[0062] In some embodiments of the present invention, Figure 5The cross-sectional view of the exhaust state of the height control valve for low suspension travel is shown as follows: Figure 5 As shown, when the valve stem 3 moves toward the top 2-6 of the valve body, when the groove 3-2 is located at both ends of the second sealing ring 5, the gas in the air source connecting port 2-2 cannot enter the airbag connecting port 2-3 for inflation, and the gas inside the airbag connecting port 2-3 enters the outside through the groove 3-2 and the end cover 8 to complete exhaust. At this time, the low suspension stroke height control valve 1 is in an exhaust state.

[0063] It can be seen that the gas in the gas source connection port is restricted by the first sealing ring, the second sealing ring and the third sealing ring and can only flow along the grooves on the valve stem and cannot flow freely, thereby realizing the switching of various states of the low suspension stroke height control valve and limiting the gas from entering the bottom of the valve body to push the valve stem to move freely axially.

[0064] Embodiment 2:

[0065] According to another aspect of the present invention, a seat 9 is designed. Figure 6 The seat composition diagram is shown, such as Figure 6 As shown, the seat 9 includes the low suspension stroke height control valve 1, and the seat 9 is fixedly connected to the low suspension stroke height control valve 1 through the first rotating connector 3-1 and the second rotating connector 2-1. The low suspension stroke height control valve 1 moves back and forth as the seat 9 moves up and down to freely switch between three states.

[0066] In summary, the use of the height control valve and seat for low suspension stroke can effectively solve the problem that the valve stem moves away from the valve body and automatically enters other working states as the gas continues to be input; unifying the original design of multiple narrow grooves into one structure can not only reduce the processing difficulty, but also greatly save various production costs, such as raw material costs, processing difficulty, and subsequent manual frosting treatment.

[0067] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A height control valve for low suspension travel, comprising a valve body and a valve stem, characterized in that: The valve body is provided with a second rotating connector, an air source connection port, an air bag connection port, a step and an air leakage hole, wherein the step divides the valve body into a valve body top and a valve body bottom; The valve stem is provided with a first rotating connection piece and a groove, and the groove is a groove of a single shape; The height control valve for low suspension travel also includes a first sealing ring, a second sealing ring, a third sealing ring, a support member and an end cover.

2. A height control valve for low suspension travel as claimed in claim 1, characterized in that: The first sealing ring and the second sealing ring are the same sealing ring, and the first sealing ring is arranged on the step.

3. A height control valve for low suspension travel as claimed in claim 1, characterized in that: The third sealing ring is always located between the gas source connection port and the second rotating connection member during operation.

4. A height control valve for low suspension travel as claimed in claim 1, characterized in that: The inner diameter of the support member is larger than the outer diameter of the valve stem, and the outer diameter of the support member is smaller than the inner diameter of the top of the valve body. A plurality of grooves and a plurality of through holes are arranged on the surface of the support member, and the support member is arranged between the first sealing ring and the second sealing ring.

5. A height control valve for low suspension travel as claimed in claim 1, characterized in that: The end cover is provided with a through hole, the end cover is adaptively fixed to the top end of the valve body, and the valve stem can axially reciprocate through the through hole.

6. A height control valve for low suspension travel as claimed in claim 1, characterized in that: When the groove is located between the first sealing ring and the second sealing ring, the low suspension stroke height control valve is in a balanced state.

7. A height control valve for low suspension travel as claimed in claim 1, characterized in that: When the valve stem moves toward the bottom of the valve body, when the groove is located at both ends of the first sealing ring, the gas in the air source connecting port passes through the groove and enters the airbag connecting port to complete inflation. At this time, the low suspension stroke height control valve is in an inflated state.

8. A height control valve for low suspension travel as claimed in claim 1, characterized in that: When the valve stem moves toward the top of the valve body, when the groove is located at both ends of the second sealing ring, the gas inside the airbag connecting port enters the outside through the groove and the end cover to complete the exhaust. At this time, the low suspension stroke height control valve is in the exhaust state.

9. A seat, characterized in that: The seat includes the low suspension stroke height control valve as described in any one of claims 1-8, and the seat is fixedly connected to the low suspension stroke height control valve through the first rotating connector and the second rotating connector. The low suspension stroke height control valve moves back and forth as the seat moves up and down to freely switch between three states.

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