Seat air bag control valve
By adopting a combined structure of scissors and fork support, execution switch, transition switch and square valve in the seat airbag control valve, the problem of the inability to resist movement in the prior art caused the device to fail, extending the service life of the device and ensuring the stable shock absorption function of the airbag.
Patent Information
- Application Number
- CN202421380452.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-17
AI Technical Summary
Due to the long-term swing contact of the existing seat airbag control valve, the triangular actuator switch causes the intake and exhaust movable rods to contact the triangular actuator switch, causing the triangular actuator switch to be unable to withstand the movement, which leads to the failure of the device.
The combination structure of scissors and fork bracket, execution switch, transition switch and square valve is adopted. Through the rotating connection of the scissors and fork bracket, the design of the switch and transition switch is performed to ensure the smooth movement of the intake and exhaust movable rods and avoid grooves from being drawn on the transition switch.
Through the design of this structure, the service life of the device is extended, the stability and reliability of the airbag control valve is ensured, and the inflation and exhaust of the airbag can be effectively realized, providing shock absorption.
Smart Images
Figure CN222645861U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile airbags, in particular to a seat airbag control valve. Background Art
[0002] Car seats are an important part of the interior of a car, providing passengers with seating and support. According to the seat material, car seats can be divided into fabric seats, leather seats, velvet seats, chemical fiber seats and leather seats.
[0003] Car seats can be divided into split seats, long seats and hybrid seats according to their shapes. In terms of safety performance, car seats should have sufficient strength and seat belt protection, as well as the ability to protect occupants in the event of a rollover.
[0004] The cushioning adjustment of automobile seats is usually pneumatically controlled and adjusted, and the cushioning adjustment is achieved by controlling the inflation and deflation of the airbag. The current seat airbag control valve includes a square valve and a triangular actuator switch. The square valve has an air intake active rod and an air exhaust active rod. The air intake active rod and the air exhaust active rod can move and return to their original positions. The triangular actuator switch swings to contact the air intake active rod and the air exhaust active rod. Since the triangular actuator switch is made of plastic, during the long-term swinging contact process, the air intake active rod and the air exhaust active rod will contact the triangular actuator switch, which will scratch a groove on the triangular actuator switch, causing the triangular actuator switch to be unable to resist the movement of the air intake active rod and the air exhaust active rod, thereby causing the device to fail. Utility Model Content
[0005] In view of the defects in the prior art, the utility model provides a seat airbag control valve, and the structure can increase the service life of the control valve.
[0006] A seat airbag control valve comprises a scissor fork bracket, an execution switch, a transition switch and a square valve, wherein the scissor fork bracket comprises a bracket inner plate and a bracket outer plate which are rotatably connected, the left part of the execution switch is rotatably set on the bracket outer plate, the middle and upper part of the execution switch is rotatably set on the bracket inner plate, the right part of the transition switch is rotatably set on the bracket outer plate, and the square valve is provided with an intake active rod and an exhaust active rod, during the downward movement of the right end of the bracket inner plate and the left end of the bracket outer plate, the upper right part of the execution switch can contact the upper left part of the transition switch, so that the transition switch rotates clockwise to push the intake active rod to move to the right, and during the upward return movement of the right end of the bracket inner plate and the left end of the bracket outer plate, the lower right part of the execution switch can contact the lower left part of the transition switch, so that the transition switch rotates counterclockwise to push the exhaust active rod to move to the right.
[0007] Preferably, there is a gap between the execution switch and the transition switch.
[0008] Preferably, the upper right portion and the lower right portion of the execution switch are both convex portions.
[0009] Preferably, it further comprises a first fixed shaft, and the inner plate of the bracket and the outer plate of the bracket are both rotatably arranged on the first fixed shaft.
[0010] Preferably, the left portion of the execution switch is rotatably disposed on the first fixed axis.
[0011] Preferably, a second fixed shaft is provided on the inner plate of the bracket, and the upper middle portion of the execution switch is rotatably provided on the second fixed shaft.
[0012] Preferably, a third fixed shaft is provided on the outer plate of the bracket, and the transition switch is rotatably provided on the third fixed shaft.
[0013] The beneficial effects of the utility model are embodied in the following: in the technical scheme, through the cooperation of the scissor fork bracket, the execution switch, the transition switch and the square valve, during the downward movement of the seat due to vibration, the right end of the inner plate of the bracket and the left end of the outer plate of the bracket move downward, the upper right part of the execution switch contacts the upper left part of the transition switch, so that the transition switch rotates clockwise and pushes the intake active rod to move to the right, and the square valve controls the inflation of the airbag; during the upward return movement of the right end of the inner plate of the bracket and the left end of the outer plate of the bracket, the lower right part of the execution switch contacts the lower left part of the transition switch, so that the transition switch rotates counterclockwise and pushes the exhaust active rod to move to the right, and the square valve controls the exhaust of the airbag, so that the inflation and exhaust of the airbag are controlled to achieve shock absorption, and the intake active rod and the exhaust active rod are pushed to move by the transition switch, and the intake active rod and the exhaust active rod will not scratch grooves on the transition switch, which can extend the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a schematic diagram of the structure of the contact between the execution switch and the transition switch in the utility model;
[0017] Figure 3 It is a schematic diagram of the structure of the transition switch in the utility model against the movement of the air intake movable rod;
[0018] Figure 4 It is a schematic diagram of the structure of the transition switch in the utility model against the movement of the exhaust movable rod.
[0019] In the accompanying drawings, 1-inner plate of the bracket, 2-outer plate of the bracket, 3-executor switch, 4-transition switch, 5-square valve, 6-intake movable rod, 7-exhaust movable rod, 8-protrusion, 9-first fixed shaft, 10-second fixed shaft, 11-third fixed shaft. DETAILED DESCRIPTION
[0020] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.
[0021] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.
[0022] Example 1
[0023] like Figure 1 As shown, a seat airbag control valve is provided in this embodiment, including a scissor fork bracket, an execution switch 3, a transition switch 4 and a square valve 5. The scissor fork bracket includes a bracket inner plate 1 and a bracket outer plate 2 which are rotatably connected. The left part of the execution switch 3 is rotatably set on the bracket outer plate 2, the middle and upper part of the execution switch 3 is rotatably set on the bracket inner plate 1, and the right part of the transition switch 4 is rotatably set on the bracket outer plate 2. The square valve 5 has an intake active rod 6 and an exhaust active rod 7. During the downward movement of the right end of the bracket inner plate 1 and the left end of the bracket outer plate 2, the upper right part of the execution switch 3 can contact the upper left part of the transition switch 4, so that the transition switch 4 rotates clockwise to push the intake active rod 6 to move to the right. During the upward return movement of the right end of the bracket inner plate 1 and the left end of the bracket outer plate 2, the lower right part of the execution switch 3 can contact the lower left part of the transition switch 4, so that the transition switch 4 rotates counterclockwise to push the exhaust active rod 7 to move to the right.
[0024] In this embodiment, through the cooperation of the scissor fork bracket, the execution switch 3, the transition switch 4 and the square valve 5, during the downward movement of the seat vibration, the right end of the bracket inner plate 1 and the left end of the bracket outer plate 2 move downward, the upper right part of the execution switch 3 contacts the upper left part of the transition switch 4, so that the transition switch 4 rotates clockwise and pushes the air intake active rod 6 to move to the right, and the square valve 5 controls the inflation of the airbag. During the upward return movement of the right end of the bracket inner plate 1 and the left end of the bracket outer plate 2, the lower right part of the execution switch 3 contacts the lower left part of the transition switch 4, so that the transition switch 4 rotates counterclockwise and pushes the exhaust active rod 7 to move to the right, and the square valve 5 controls the exhaust of the airbag. In this way, the inflation and exhaust of the airbag are controlled to achieve a shock absorbing effect, and the intake active rod 6 and the exhaust active rod 7 are pushed to move by the transition switch 4, and the intake active rod 6 and the exhaust active rod 7 will not scratch grooves on the transition switch 4, which can extend the service life of the device.
[0025] In this embodiment, the air intake movable rod 6 and the air exhaust movable rod 7 on the square valve 5 can move and return to their original positions. The square valve 5 adopts the existing ones and will not be described in detail here.
[0026] In this embodiment, there is a gap between the execution switch 3 and the transition switch 4 .
[0027] In the conventional structure, the triangular actuator switch is in direct contact with the air intake movable rod 6 and the air exhaust movable rod 7. For high-frequency and low-amplitude vibrations, the airbag will be deflated before it is inflated, and the shock-absorbing function cannot be achieved.
[0028] In this embodiment, there is a gap between the execution switch 3 and the transition switch 4. For high-frequency and low-amplitude vibrations, due to the low vibration amplitude, the execution switch 3 has not yet contacted the transition switch 4. In this way, the elasticity of the airbag itself is used to achieve the shock absorption function, so that the airbag can also absorb high-frequency and low-amplitude vibrations.
[0029] The upper right part and the lower right part of the execution switch 3 in this embodiment are both convex parts 8. The upper right part and the lower right part of the execution switch 3 in this embodiment are both convex parts 8, and the convex parts 8 contact the transition switch 4 to drive the transition switch 4 to rotate.
[0030] The present embodiment also includes a first fixed shaft 9, and the bracket inner plate 1 and the bracket outer plate 2 are both rotatably arranged on the first fixed shaft 9. The present embodiment is provided with a first fixed shaft 9, and the bracket inner plate 1 and the bracket outer plate 2 are both rotatably arranged on the first fixed shaft 9 to realize the rotatable connection between the bracket inner plate 1 and the bracket outer plate 2.
[0031] In this embodiment, the left part of the execution switch 3 is rotatably arranged on the first fixed shaft 9. In this embodiment, the left part of the execution switch 3 is rotatably arranged on the first fixed shaft 3 to realize the rotational arrangement of the execution switch 3.
[0032] In this embodiment, the bracket inner plate 1 is provided with a second fixed shaft 10, and the upper middle part of the execution switch 3 is rotatably arranged on the second fixed shaft 10. In this embodiment, the upper middle part of the execution switch 3 is rotatably arranged on the second fixed shaft 10 to realize the rotation connection between the execution switch and the bracket inner plate 1.
[0033] In this embodiment, the bracket outer plate 2 is provided with a third fixed shaft 11, and the transition switch 4 is rotatably provided on the third fixed shaft 11. In this embodiment, the transition switch 4 is rotatably provided on the third fixed shaft 11 to realize the rotatable connection between the transition switch 4 and the bracket outer plate 2.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.
Claims
1. A seat airbag control valve, characterized in that: The invention comprises a scissor fork bracket, an execution switch (3), a transition switch (4) and a square valve (5), wherein the scissor fork bracket comprises a bracket inner plate (1) and a bracket outer plate (2) which are rotatably connected, the left part of the execution switch (3) is rotatably arranged on the bracket outer plate (2), the middle and upper part of the execution switch (3) is rotatably arranged on the bracket inner plate (1), the right part of the transition switch (4) is rotatably arranged on the bracket outer plate (2), the square valve (5) has an air intake movable rod (6) and an air exhaust movable rod (7), and the bracket During the downward movement of the right end of the inner plate (1) and the left end of the bracket outer plate (2), the upper right portion of the executive switch (3) can contact the upper left portion of the transition switch (4), so that the transition switch (4) rotates clockwise to push the intake movable rod (6) to move to the right. During the upward return movement of the right end of the bracket inner plate (1) and the left end of the bracket outer plate (2), the lower right portion of the executive switch (3) can contact the lower left portion of the transition switch (4), so that the transition switch (4) rotates counterclockwise to push the exhaust movable rod (7) to move to the right.
2. A seat airbag control valve according to claim 1, characterized in that: There is a gap between the execution switch (3) and the transition switch (4).
3. A seat airbag control valve according to claim 1, characterized in that: The upper right part and the lower right part of the execution switch (3) are both convex parts (8).
4. A seat airbag control valve according to claim 1, characterized in that: It also includes a first fixed shaft (9), and the bracket inner plate (1) and the bracket outer plate (2) are both rotatably arranged on the first fixed shaft (9).
5. A seat airbag control valve according to claim 4, characterized in that: The left part of the execution switch (3) is rotatably arranged on the first fixed shaft (9).
6. The seat airbag control valve according to claim 1, characterized in that: A second fixed shaft (10) is arranged on the inner plate (1) of the bracket, and the upper middle part of the execution switch (3) is rotatably arranged on the second fixed shaft (10).
7. The seat airbag control valve according to claim 1, characterized in that: A third fixed shaft (11) is arranged on the bracket outer plate (2), and the transition switch (4) is rotatably arranged on the third fixed shaft (11).