Damping buffer device

Abstract

The invention relates to a damping buffer device, which comprises a pipe body, an end cover, a pull rod, a piston group and a spacer, wherein one end of the pipe body is an open end; one end, which is far away from the open end, of the pipe body is the bottom part of the pipe body; the end cover is arranged at the open end of the pipe body; the end cover and the pipe body are hermetically fixed; the spacer is arranged in the open end the pipe body; damping liquid is arranged between the bottom part of the pipe body and the spacer; after penetrating through the end cover and the spacer, one end of the pull rod extends into the pipe body; one end, which is located in the pipe body, of the pull rod is provided with the piston group; at least one flow channel arranged along the axial direction of the pipe body is formed in the inner wall of the pipe body; the at least one flow channel is gradually reduced and then gradually increased in cross sectional area from one end to other end. According to the damping buffer device disclosed by the invention, buffer resistance can be effectively regulated in a closing process of sliding members of furniture, so the smoothness of the sliding members in the closing process can be ensured; the damping buffer device can also exert buffer action.

Description

technical field [0001] The invention relates to the technical field of furniture accessories, in particular to a damping and buffering device. Background technique [0002] With the improvement of people's living standards, the requirements for furniture are getting higher and higher. In addition to the pursuit of the beauty and practicability of furniture, people also have requirements for the humanized design and durability of furniture. In the prior art, sliding parts of furniture such as sliding doors are likely to collide with the main body when closing or sliding parts such as drawers are closed. Not only will the collision cause noise, but they will also easily damage each other. Therefore, the manufacturer makes a humanized design on the furniture - installing a resistance buffer device to alleviate the impact of the collision, so that the sliding door or drawer can move slowly when closing to the last stage, preventing the sliding door or drawer from violently hitti...

AI Technical Summary

Problems solved by technology

However, the existing resistance buffering device still has the following disadvantages: since the reaction force of the existing resistance buffering device is constant, if the resistance of the resistance buffering device is too large, when the sliding door or the drawer is closed and the initial contact with the resistance buffering device will appear The phenomenon of springback (especially the phenomenon of rebounding and jumping doors in sliding doors) will greatly reduce the practicability of furniture; if the resistance of the resistance buffer device is too small, when the sliding door or drawer is too heavy or the sliding door or drawer is closed When the speed is too high and the impact force is too large, the damping fluid inside the resistance buffer device cannot provide a large reverse force, which will greatly reduce the buffering effect of the device and cannot prevent the sliding door or drawer from violently hitting the cabinet.

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