Door check

Abstract

The invention discloses a door check, and relates to the technical field of automobile parts. The door check comprises a limiting support, a limiting pull plate and a limiting assembly, wherein the limiting assembly is fixedly connected to a vehicle door, one end of the limiting support is connected to a vehicle body, the other end of the limiting pull plate penetrates through the limiting assembly and then extends into the space inside the vehicle door, the limiting assembly is used for limiting the limiting pull plate, and the opening-closing angle of the vehicle door is fixed. According to the door check, the movement noise of the limiting pull plate can be eliminated when the vehicle door is opened and closed, the influence of rainwater corrosion and the influence of bad effects caused by internal abrasion of the door check are avoided, and the service life of a door check assembly is prolonged.

Description

technical field [0001] The invention relates to the technical field of automobile parts, in particular to a door stopper with long service life and good stopper effect. Background technique [0002] At present, with the development of science and technology, people's living standards have improved, and the requirements for car performance have become higher and higher; the door stopper is an auto part that limits the position of the car door, and has the ability to limit the opening and closing of the car door. Function, the door stopper is generally arranged between the upper and lower hinges of the door, which can limit some specific positions of the door so that the door can neither close nor open itself. On the one hand, it can limit the maximum opening angle of the door to prevent the outer panel of the door from colliding with the car body; on the other hand, it can control the door to keep open according to actual needs, for example, when the car is parked on a slope ...

AI Technical Summary

Problems solved by technology

[0004] 1) One of the common types of limit boxes is formed by stamping sheet metal. This kind of limit box is called a metal box; because in the case of artificial door opening angle overload, the associated limit When the device assembly is working, it is easy for the limit pull plate to squeeze the limit box, resulting in deformation of the metal box;

[0005] 2) The metal box described in case 1) is divided into two parts: the cover plate and the box. The metal cover plate and the box are generally fixed to each other by riveting. In this case, the plastic inside the stopper slides during the working process The block will move up and down linearly with the waveform of the limit pull plate, and the peripheral wall of the slider will collide with the metal cover plate and the box wall to cause corresponding hard collision and frictional movement, which will easily produce abnormal movement noise, and the metal surface coating will also be subject to corresponding wear and tear. After reaching a certain level, after the rainwater enters, chemical reactions such as corrosion and rust will occur with the metal surface whose coating is damaged, which will further aggravate the adverse reaction of the slider's frictional noise;

[0006] 3) Under normal circumstances, the bolts and the above-mentioned metal limit box are fixed by riveting. In the actual market feedback, occasionally the bolts will fall off, which brings inconvenience to the limiter maintenance and affects the customer experience;

[0007] 4) Under normal circumstances, the shock-absorbing block made of TPU and other materials is assembled on the pull plate and moves with the limit pull plate. During this process, it is easily damaged due to the extrusion of the metal frame structure;

[0008] 5) Due to the influence of weather or other environmental factors, rainwater and muddy water will intrude into the limit box inside the limit box. Since there is no corresponding drainage channel, it is easy to cause rainwater and mud water to accumulate inside the limit box, making the limit box Abnormal noise occurs when the device assembly is working

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