Durable limiter used on vehicle

Abstract

The invention belongs to the technical field of vehicle door limiters, and particularly relates to a durable limiter used on a vehicle. The durable limiter comprises a mounting bracket, a limiting box, a rubber buffer block, a limiting arm, and a clamping mechanism. A limiting plane of a limiting bulge on the lower side of the limiting arm is designed for different working states of an upper side compression spring and a lower side compression spring. When a lower side rolling wheel passes through the limiting plane, a limiting plate can bear redundant compression elastic force of the upper side compression spring relative to the lower side compression spring, and meanwhile a first gear continues to keep still. By using the limiting plate, on one hand, the compression amount of the upper side compression spring is higher than the compression amount of the lower side compression spring, and the technical requirement that the upper and lower side compression springs are different in working state is met; and on the other hand, when the limiting box is not matched with the limiting bulge, after the elasticity of the upper side compression spring is weakened, an upper side installation plate is far away from the limiting plate downwards by a small amplitude under the force balance effect, and a second rack penetrates out of the limiting box, so that normal operation of the follow-up adjusting process is guaranteed.

Description

[0001] Technical field [0002] The invention belongs to the technical field of car door stoppers, in particular to a durable stopper used on vehicles. Background technique [0003] At present, when the vehicle is manufactured, a door stopper, a rubber spring stopper and a torsion spring stopper are installed on the car door. The car door stopper generally has the following two functions: one is the stopper arm Set 2-3 arc belts on the top, so as to form switch gears at the nodes of the arc belts and arc belts, so that the door has 2-3 positioning points during the opening and closing process; the second is to ensure that the car is on the specified ramp. It can ensure that the door stops at a certain fixed point and does not open or close by itself; The advantages of this structure are simple structure, low cost, small footprint and maintenance-free. The disadvantage is that the requirements for sheet metal are relatively high. If the strength of the hinge is not enough, th...

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Problems solved by technology

The disadvantage is that the requirements for sheet metal are relatively high. If the strength of the hinge is not enough, the door sinks, which may cause abnormal noise. After running for a period of time, the limit torque will decrease rapidly.

[0004] For the rubber spring type limiter, the door limiter of this structure generally has two or three gears, its maximum torque is about 35N.m, its length is generally about 60mm, and its maximum opening angle is generally below 70 degrees. After the test, the torque change is about 30%-40%; but the limit force loss is relatively large. After a long time of use, the elastic force of the spring or rubber will weaken, which will affect the overall performance of the vehicle.

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