Multi-bridge emergency synchronous brake valve
A synchronous braking and emergency technology, applied in the direction of brakes, brake components, control valves and air release valves, etc., can solve the problems of different braking force, vehicle locking, uneven wear, etc., to achieve good braking effect, Stable performance and simple structure
Inactive Publication Date: 2012-07-11
王绿阳
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Problems solved by technology
At present, in the multi-trailer and semi-trailer vehicles that use emergency brake valves, two or more emergency relay valves are often installed to make the braking force between the axle and the axle tires different, resulting in vehicle lockup and partial braking. .Uneven tire wear and other problems. At the same time, the release of the brakes is obviously slower than that of the front wheels of the vehicle, resulting in rear wheels lagging and slow recovery. Therefore, it is also necessary to increase the number of stop valves to solve the problem of rear wheel braking. Not the best choice, how to use the rear brake to synchronize, release the brake and synchronize, it is related to the big problem of car driving safety
Method used
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[0012] Gas path setting
[0013] 1. The intake air is inflated from the air inlet 1 to the air reservoir interface 11 through the one-way valve 7 .
[0014] 2. During normal driving. Because the air source pressure of the air inlet 1 is greater than the air source pressure of the air storage tank interface 11, and the area at both ends of the emergency piston 2 is S 1 >S 2 , when the product of the area at both ends of the emergency piston 2 and the pressure P1×S 1 >P2×S 2 , for this purpose the emergency piston 2 moves to S during normal driving 2 The direction is pushed in place, so that the O-ring 5 and the bushing 9 are sealed, and at the same time, the O-ring 3 and the bushing 9 form an air channel, and the control source interface 18 is formed by the channel between the O-ring 3 and the bushing 9 and the air Cavity 20 and air cavity 4 enter the air chamber 17, push the large piston 16 downward, and push the valve 13 open, so that the air in the air storage tank inte...
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The invention discloses a multi-bridge emergency synchronous brake valve consisting of an upper valve body and a lower valve body integrated with the upper valve body of the emergency brake valve. The lower valve body is internally provided with a valve seat which is provided with a valve, an air chamber, a large piston, a bushing, an air reservoir port and a plurality of air outlets. The upper valve body is internally provided with an air inlet, a control air supply port and the bushing; the bushing is internally provided with an emergency piston which consists of an emergency piston rod, a plurality of check valves and a plurality of O-type sealing rings; a convex air cavity and a plurality of air cavities are arranged between the bushing and the emergency piston; and two check valves and the plurality of O-type sealing rings are arranged on the emergency piston rod in the convex air cavity. The air inlet and the control air supply port are distributed in a T-shape, and an air hole at the other end of the control air supply port is directly communicated with the air cavity. A straight-through air flue is arranged between the convex air cavity and the air chamber. The multi-bridge emergency synchronous brake valve is applicable to the braking of big cars, semi-trailers and trailers.
Description
technical field [0001] The invention relates to a brake valve, in particular to a multi-axle emergency synchronous brake valve. Background technique [0002] The automobile brake valve is the control center of the driving brake in the automobile braking system, which is used to control the braking of the rear axle of large cars and semi-trailers and the braking of trailers. Because the rear wheels of the above-mentioned vehicles are far away from the front of the car, if the brake valve at the front is directly braked, the pipeline will be longer, and the brake will obviously lag behind the front wheels, so these vehicles use emergency brake valves to control the rear. brake. At present, in the multi-trailer and semi-trailer vehicles that use emergency brake valves, two or more emergency relay valves are often installed to make the braking force between the axle and the axle tires different, resulting in vehicle lockup and partial braking. .Uneven tire wear and other probl...
Claims
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IPC IPC(8): B60T15/36
Inventor 王绿阳
Owner 王绿阳