Damper for lifting rod of automobile trunk

Abstract

The invention discloses a damper for a lifting rod of an automobile trunk. The damper comprises a shell; the shell is internally provided with an input shaft, an inner core, an outer core and an output shaft; the upper end of the inner core is inserted into the outer core; the lower end of the output shaft is sequentially inserted into the outer core and the inner core; the upper end of the input shaft is sequentially inserted into the inner core and the output shaft; the upper end of the input shaft is connected with the lower end of the output shaft through a screw; the outer wall of the inner core is sleeve with an inner core spring, and the inner core spring makes contact with the inner wall of the outer core; the outer wall of the outer core is sleeved with an outer core spring, and the outer core spring makes contact with the inner wall of the shell; the inner core spring is squeezed to be expanded through the output shaft, the jacking force of the inner core spring to the inner wall of the outer core is increased, then, the outer core and the inner core are driven to rotate in sequence, and the effect that reduced power is transmitted into the input shaft is achieved. The damper is reasonable in overall structural design, high in stability and capable of providing appropriate resistance for the stretching out and drawing back processes of the lifting rod, so that a door of the trunk is opened or closed with appropriate strength, and opening and closing are more convenient and quicker.

Description

Technical field [0001] The invention relates to the technical field of dampers, in particular to a damper used for a lifting rod of an automobile trunk. Background technique [0002] The trunk of a car is a box used to store items at the rear of the car. It is widely used in all kinds of small cars. The existing trunk of a car includes a box body and a lid. One end of the lid is fixed by a rotating shaft. On the box body, the other end is matched with the box body through a connecting buckle. [0003] Because the trunk door is very heavy, the extended lifting device cannot support the weight of the trunk door. When closing the door, due to the weight of the trunk door, the force in the closing process is very large, which occurs under the action of gravity. Sudden drop phenomenon causes problems such as the shaking of the lifting rod. Therefore, due to the unreasonable opening and closing force of the box door, either too large or too small, it brings great inconvenience to the u...

AI Technical Summary

Problems solved by technology

[0003] Because the trunk door is very heavy, the lifting device in the extended state cannot support the weight of the trunk door. When closing the door, due to the weight of the trunk door, the force in the closing process is very large, which appears under the actio

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