A Three-Stage Buffer Suitable for Controlling the Buffering Order Gradually

Abstract

The invention relates to a three-stage buffer suitable for controlling the buffer sequence step by step. The three-stage buffer comprises a first-stage buffer, an intermediate-stage buffer and a last-stage buffer; the first-stage buffer, the intermediate-stage buffer and the last-stage buffer respectively comprise a cylinder body which is in a cylindrical shape and is used for filling buffer medium, an opening end of the cylinder body is provided with a cylinder cover in a sealing way, a center through hole of the cylinder cover is internally and movably matched with a piston rod in the sealing way, the right end of the piston rod is provided with a piston body assembly, the piston body assembly is suitable for doing piston motion in the cylinder body, and the piston body assembly is in movable sealing match with the inner wall of the cylinder body; the piston rod of the intermediate-stage buffer is formed by the cylinder body of the first-stage buffer, and the piston rod of the last-stage buffer is formed by the cylinder body of the intermediate-stage buffer; the right end surface of the piston body assembly of the first-stage buffer is provided with a pressure sensor which is used for detecting medium pressure; and the piston body assembly of each buffer is suitable for regulating the back-and-forth flow of the medium in the corresponding cylinder body according to the medium pressure detected by the pressure sensor when the piston body assembly does the piston motion, and thus the motion speed of each piston can be controlled.

Description

technical field [0001] The invention relates to a buffer, in particular to a buffer using elastic colloid as a buffer medium. Background technique [0002] In the field of cushioning and shock absorption, buffers are widely used, and their main functions are to absorb various impact energy, protect equipment and reduce noise. [0003] The authorization number CN202149175 discloses a buffer, which is a two-stage buffer, and the maximum force F1max and the initial minimum force F2cmin of the medium in the first-stage buffer and the secondary buffer are different to control the first-stage buffer and the secondary buffer. The action sequence of the buffer; and it is mentioned in the manual that the capacity of the entire buffer is set according to the impact energy. However, in real work, because the impact energy is not constant, it may change, so it depends on the medium. Realizing the working order of buffers at all levels is difficult to realize in practice. Contents of ...

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Problems solved by technology

[0003] The authorization number CN202149175 discloses a buffer, which is a two-stage buffer, and the maximum force F1max and the initial minimum force F2cmin of the medium in the first-stage buffer and the secondary buffer are different to control the first-stage buffer and the secondary buffer. The action sequence of the buffer; and it is mentioned in the manual that the capacity of the entire buffer is set according to the impact energy. However, in real work, because the impact energy is not constant, it may change, so it depends on the medium. It is difficult to realize the working order of buffers at all levels in practice

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