Integrated regulating valve for airbag shock absorption

Abstract

The integrated regulating valve for airbag shock absorption of the present invention belongs to the field of automobile pneumatic adjustment technology. The regulating valve includes a valve body, and a first valve group and a second valve group are arranged in the valve body; the first valve group includes: a first valve stem, and the left side of the first valve stem is covered with a first safety ring, a first sealing gasket, a first spacer ring, a second sealing gasket, and a first gasket ring in sequence from left to right; the second valve group includes: a second valve stem, and the second valve stem is covered with a spring bushing, a third sealing gasket, a second spacer ring, a fourth sealing gasket and a second safety ring in sequence from left to right. The valve body of the present invention adopts an integrated structure, and the two ends of the valve body are designed as coaxial trigger valve stems. The coaxial valve stem design is simpler and more convenient, and the trigger mechanism can be arranged on the same horizontal plane. The structure is more compact, reducing the height occupation of the seat, greatly saving the internal space of the seat, and is more conducive to the overall layout of the seat.

Description

Technical Field

[0001] The integrated regulating valve for air bag shock absorption of the present invention belongs to the technical field of automobile pneumatic adjustment. Background Art

[0002] There are many ways to adjust the height of a car seat. Among them, the pneumatic adjustment method uses an air bag to support the car seat, and triggers and controls the seat height adjustment valve through a set of driver-controllable adjustment mechanisms to control the inflation and deflation of the air bag under the seat, thereby achieving the seat height adjustment function.

[0003] The controllable adjustment mechanism is composed of a height adjustment knob, a quick release knob, a separate pull wire driven by each knob, and a trigger height valve connected to the seat scissor bracket. When the driver wants to increase the seat height, after turning the seat height adjustment knob to a certain position, the rotation of the knob pulls the pull wire trigger mechanism and triggers the intake valve stem of the height valve through the mechanism to press down, so that the airbag is inflated and the seat is raised. The process of raising the seat also drives the trigger mechanism to move. When the seat reaches the set height, the mechanism that triggers the intake valve stem of the height valve is automatically released, and the trigger mechanism and the intake valve stem of the height valve are reset to complete the adjustment of the seat height increase. When the driver wants to lower the seat height, after turning the seat height adjustment knob to a certain position, the rotation of the knob pulls the pull wire trigger mechanism and triggers the exhaust valve stem of the height valve through the mechanism to press down, so that the airbag is deflated and the seat is lowered. The process of lowering the seat also drives the trigger mechanism to move. When the seat is lowered to the set height, the mechanism that triggers the exhaust valve stem of the height valve is automatically released, and the trigger mechanism and the exhaust valve stem of the height valve are reset to complete the adjustment of the seat height decrease. This ensures that a more comfortable riding experience is provided for the driver and passengers.

[0004] At present, there are various forms of such products. The existing technology combines multiple valve bodies in series or parallel to realize manual or automatic adjustment of the height of the automobile airbag shock-absorbing seat. Such seats have complex structures, high manufacturing costs, poor sealing performance and valve sheet fatigue resistance, and short service life. Summary of the invention

[0005] The purpose of the invention is to simplify the valve body structure of an airbag shock-absorbing seat, reduce the manufacturing cost and extend the service life.

[0006] To achieve the above objectives, the present invention discloses an integrated regulating valve for airbag shock absorption that is efficient, stable, and extremely low-risk. The specific technical solution is as follows:

[0007] The integrated regulating valve for airbag shock absorption of the present invention is characterized in that: Figure 1 As shown, the regulating valve comprises: a valve body 1, wherein a first valve group and a second valve group are arranged in the valve body 1;

[0008] The first valve group comprises:

[0009] A first valve stem 2, on the left side of the first valve stem 2, a first safety ring 3, a first sealing gasket 4, a first spacer ring 5, a second sealing gasket 6, and a first gasket 7 are sequentially sleeved from left to right, and a first spring 8 is arranged on the right side of the first valve stem 2;

[0010] The second valve group comprises:

[0011] A second valve stem 9, on which a spring bushing 10, a third sealing gasket 11, a second spacer ring 12, a fourth sealing gasket 13 and a second safety ring 14 are sequentially sleeved from left to right;

[0012] A fifth sealing gasket 15 and a second gasket ring 16 are sequentially sleeved on the left end of the second valve stem 9 , and a second spring 17 is sleeved on one side of the second valve stem 9 close to the second gasket ring 16 .

[0013] Furthermore, the valve body 1 adopts an integrated structure.

[0014] Furthermore, an air inlet 18 is provided on the valve body 1 at the lower side of the first spacer ring 5 .

[0015] Furthermore, a charging and discharging port 19 is provided on the valve body 1 at the lower side of the second spring 17 .

[0016] Furthermore, an exhaust port 20 is provided on the valve body 1 at the lower side of the second spacer ring 12 .

[0017] The beneficial effects of the present invention are:

[0018] 1. The valve body adopts a cylindrical integrated structure, and the two ends of the cylinder are designed as coaxial trigger valve stems. This cylindrical structure makes the mold manufacturing simpler, which is conducive to the realization of one mold with multiple cavities, making the manufacturing cost lower than the existing structural mode. The coaxial valve stem design is simpler and convenient, and the trigger mechanism can be arranged on the same horizontal plane. The structure is more compact, reducing the height of the seat, greatly saving the internal space of the seat, and is more conducive to the overall layout of the seat.

[0019] 2. The internal seal adopts the internal expansion and compression sealing method of the sealing gasket flat plate to seal the cavity. Compared with the conventional sealing form, this structure is more suitable for frequent opening and prolongs the service life of the sealing ring.

[0020] 3. The valve stem controls the on and off of two channels at the same time, which is more direct and effective than single control. This form also has a higher anti-error interlocking performance. After the valve stem is pressed down, even if the other valve stem is pressed down, it will not cause the seat to rise incorrectly, effectively avoiding the incorrect triggering of the valve stem and causing the seat height to change unnecessarily. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention, which also serves as an abstract drawing.

[0022] Figure 2 It is a schematic diagram of the inflation process of the present invention.

[0023] Figure 3 It is a schematic diagram of the exhaust process of the present invention.

[0024] Figure 4 It is a schematic diagram of the double pressure process of the present invention.

[0025] Figure 5 It is a schematic structural diagram of the first valve stem 2 in the present invention.

[0026] Figure 6 It is a schematic structural diagram of the second valve stem 9 in the present invention. DETAILED DESCRIPTION

[0027] A specific implementation case of the present invention is given below in conjunction with the accompanying drawings to introduce the structure and implementation method of the present invention in detail. It should be noted that the scope of application of the present invention is not limited to the following embodiments, and all similar structures based on the present invention are within the scope of application of the present invention.

[0028] The integrated regulating valve for airbag shock absorption of the present invention is as follows Figure 1 As shown, the regulating valve comprises: a valve body 1, wherein a first valve group and a second valve group are arranged in the valve body 1;

[0029] The first valve group comprises:

[0030] The first valve stem 2, the left side of the first valve stem 2 is covered with a first safety ring 3, a first sealing gasket 4, a first spacer ring 5, a second sealing gasket 6, and a first gasket ring 7 in sequence from left to right, and the right side of the first valve stem 2 is provided with a first spring 8. During installation, in the valve body 1, the left part is sequentially installed with the first spring 8 and the first valve group, and then the first safety ring 3 is pressed into the ring groove of the valve body 1 by a press, so as to complete the left side assembly of the valve body 1.

[0031] The second valve group comprises:

[0032] A second valve stem 9, on which a spring bushing 10, a third sealing gasket 11, a second spacer ring 12, a fourth sealing gasket 13 and a second safety ring 14 are sequentially sleeved from left to right;

[0033] The left end of the second valve stem 9 is sequentially sleeved with a fifth sealing gasket 15 and a second gasket ring 16, and the side of the second valve stem 9 close to the second gasket ring 16 is sleeved with a second spring 17. During installation, in the valve body 1, the right side is sequentially installed with the fifth sealing gasket 15, the second gasket ring 16, the second spring 17 and the second valve group, and then the second safety ring 14 is pressed into the ring groove of the valve body 1 by a press to complete the right side assembly of the valve body 1.

[0034] According to an optional implementation of the present invention, the valve body 1 adopts an integrated structure.

[0035] According to an optional implementation of the present invention, an air inlet 18 is provided on the valve body 1 at the lower side of the first spacer ring 5 .

[0036] According to an optional implementation of the present invention, a charging and discharging port 19 is provided on the valve body 1 at the lower side of the second spring 17 .

[0037] According to an optional implementation of the present invention, an exhaust port 20 is provided on the valve body 1 at the lower side of the second spacer ring 12 .

[0038] The working state of the present invention in adjusting the height of a car seat and the technical effects achieved are as follows:

[0039] 1. When the seat is in a highly balanced state, the first valve stem 2 and the second valve stem 9 are in a state of not being subjected to external pressure, and the second spring 17 in the valve body 1 will push the large disc of the second valve stem 9 to move to the right, so that the second valve stem 9 is pressed on the third sealing pad 11, and the left end of the second valve stem 9 is separated from the fifth sealing pad 15; the elastic force of the first spring 8 in the valve body 1 presses the boss of the first valve stem 2 on the second sealing pad 6, so that the three air passages of the air inlet 18, the air charging and discharging port 19 and the air exhaust port 20 on the valve body 1 are independent of each other.

[0040] 2. When the seat height needs to be increased, the first valve stem 2 is compressed by the manual adjustment mechanism, and the elastic force of the first spring 8 is overcome, so that the boss of the first valve stem 2 is separated from the second sealing pad 6, and the two air passages of the air inlet 18 and the air charging and discharging port 19 are connected, the airbag is inflated, and the seat is raised. At this time, the state of the valve body 1 is as follows: Figure 2 When the required height is reached, the clamping mechanism of the first valve stem 2 is automatically released, and under the action of the first spring 8, the boss of the first valve stem 2 and the second sealing pad 6 are compressed, the air inlet 18 and the air charging and discharging port 19 are closed, and the seat reaches a new horizontal state. Figure 1 , complete the seat height adjustment.

[0041] 3. When the seat needs to be lowered, the adjustment mechanism is manually pulled to compress the second valve stem 9 and overcome the elastic force of the second spring 17, so that the boss of the second valve stem 9 is separated from the third sealing pad 11, and the left end conical surface of the second valve stem 9 is pressed against the fifth sealing pad 15. At this time, the two air passages of the charging and discharging port 19 and the exhaust port 20 are connected, the airbag is deflated, and the seat is lowered. At this time, the state of the valve body 1 is as follows: Figure 3 When the seat is lowered to the required position, the clamping mechanism of the second valve stem 9 is automatically released, and the two air passages of the air filling and discharging port 19 and the air exhaust port 20 are cut off. Figure 1 , the seat reaches a new horizontal state. At this time, the seat lowering adjustment is completed.

[0042] 4. When the vehicle is in a bumpy state and the seat is lowered, the first valve stem 2 is compressed by the automatic valve body adjustment mechanism, so that the first valve stem 2 is compressed and overcomes the elastic force of the first spring 8, so that the boss of the first valve stem 2 is separated from the second sealing pad 6, and the two air passages of the air inlet 18 and the air charging and discharging port 19 are connected. At this time, the state of the valve body 1 is as follows: Figure 2 When the airbag is inflated, the seat rises, and the seat reaches a new horizontal state, the automatic valve body adjustment mechanism releases the compression effect on the first valve stem 2, and the state of the valve body 1 is as follows Figure 1 , complete the seat height adjustment.

[0043] 5. When the vehicle is in a bumpy state and the seat is lifted upward: when the second valve stem 9 is compressed by the automatic valve body adjustment mechanism, the second valve stem 9 is compressed and overcomes the elastic force of the second spring 17, so that the boss of the second valve stem 9 is separated from the third sealing pad 11, and the left end cone of the second valve stem 9 is pressed tightly against the fifth sealing pad 15. At this time, the two air passages of the charging and discharging port 19 and the exhaust port 20 are connected, and the state of the valve body 1 is as follows: Figure 3 When the airbag is deflated and the seat is lowered and the seat reaches a new horizontal state, the automatic valve body adjustment mechanism releases the compression effect on the second valve stem 9, and the state of the valve body 1 is as follows: Figure 1 , complete the seat lowering adjustment.

[0044] 6. When the seat needs to be lowered to the lowest position to facilitate the driver and passengers to get off the vehicle, the second valve stem 9 is compressed by manually pulling the adjustment mechanism, so that the second valve stem 9 is compressed and remains in a compressed state. At this time, the second valve stem 9 overcomes the elastic force of the second spring 17, so that the boss of the second valve stem 9 is separated from the third sealing gasket 11, and the left end conical surface of the second valve stem 9 is compressed with the fifth sealing gasket 15. At this time, the two air passages of the charging and discharging port 19 and the exhaust port 20 are connected. At the same time, under the action of the automatic adjustment mechanism, the first valve stem 2 is compressed and maintained, so that the first valve stem 2 is compressed and overcomes the elastic force of the first spring 8, so that the boss of the first valve stem 2 is separated from the second sealing gasket 6. At this time, the compressed air reaches the air chamber of the first spring 8 and is compressed and sealed by the second valve stem 9 and the fifth sealing gasket 15, so that the high-pressure gas from the air inlet 18 end cannot continue to move forward. At this time, the state of the valve body 1 is as follows: Figure 4 , at this time, the seat height is at the lowest point and the air intake is in a working state.

[0045] 7. When the driver and passengers get on the vehicle and the seat needs to be raised to the previous height, the adjustment mechanism is manually released to release the compression of the second valve stem 9. The second valve stem 9 is pushed to the initial state by the action of the second spring 17. At this time, the second valve stem 9 and the third sealing gasket 11 are in a sealed state, and the second valve stem 9 and the fifth sealing gasket 15 are in an open state. At this time, the valve body is in the state as shown in FIG. Figure 2 At this time, the two air passages of the air inlet 18 and the charging and discharging port 19 of the valve body 1 are connected, and the compressed air enters the airbag. The seat continues to rise. When it rises to the height before getting off the car, the automatic valve body adjustment mechanism releases the pressure on the first valve stem 2, so that the first valve stem 2 returns to the initial state, and the state of the valve body 1 is as follows: Figure 1 , the seat height reaches the previous horizontal state and the seat reset is completed.

[0046] The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present invention.

Claims

1. An integrated regulating valve for airbag shock absorption, characterized in that: The regulating valve comprises: a valve body (1), wherein a first valve group and a second valve group are arranged in the valve body (1); The first valve group comprises: A first valve stem (2), wherein a first safety ring (3), a first sealing gasket (4), a first spacer ring (5), a second sealing gasket (6), and a first gasket ring (7) are sequentially sleeved on the left side of the first valve stem (2) from left to right, and a first spring (8) is provided on the right side of the first valve stem (2); The second valve group comprises: A second valve stem (9), wherein the second valve stem (9) is covered with a spring bushing (10), a third sealing gasket (11), a second spacer ring (12), a fourth sealing gasket (13) and a second safety ring (14) in sequence from left to right; A fifth sealing gasket (15) and a second gasket ring (16) are sequentially sleeved on the left end of the second valve stem (9), and a second spring (17) is sleeved on the side of the second valve stem (9) close to the second gasket ring (16).

2. The integrated regulating valve for airbag shock absorption according to claim 1, characterized in that: The valve body (1) adopts an integrated structure.

3. The integrated regulating valve for airbag shock absorption according to claim 1, characterized in that: The valve body (1) is provided with an air inlet (18) on the lower side of the first spacer ring (5).

4. The integrated regulating valve for airbag shock absorption according to claim 1, characterized in that: The valve body (1) is provided with a gas charging and discharging port (19) located on the lower side of the second spring (17).

5. The integrated regulating valve for airbag shock absorption according to claim 1, characterized in that: The valve body (1) is provided with an exhaust port (20) located on the lower side of the second spacer ring (12).

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