Swinging block type damping universal wheel

Abstract

The invention provides a swinging block type damping universal wheel which comprises a wheel body, a wheel frame unit and a damping unit. The wheel frame unit comprises a first connecting portion, a second connecting portion and a third connecting portion, one end of the first connecting portion is fixedly connected with a revolving shaft of the wheel body, one end of the second connecting body is hinged to the first connecting portion, and the third connecting portion is arranged on the second connecting portion and used for being combined with an installation object. The damping unit is arranged between the first connecting position and the second connecting position, the first connecting portion and the second connecting portion rotate around a hinging position relatively, the damping unit is used for achieving damping in the horizontal and vertical directions of the installation object. A swinging block mechanism is adopted, damping and regulation of damping degree in the vertical direction and the horizontal direction of the universal wheel are achieved, the mechanism is compact, and overall stability is high.

Description

technical field [0001] The invention relates to a universal wheel structure, in particular to a rocker type universal wheel which can be combined with an installation object to achieve vertical and horizontal shock absorption, and the shock absorption can be adjusted. Background technique [0002] As a relatively mature structural product, universal wheels are mostly used in wheelchairs, baby carriages, hospital beds and supermarket trolleys. [0003] The wheel frame of the shock-absorbing universal wheel in the prior art is mostly composed of one body, the stability of the wheel frame is not high, and the shock absorption is realized by the oil pressure buffer device, which not only causes the universal wheel to be large in size, but also has a long time Excessive use will cause oil leakage from the hydraulic device and fail to achieve the best shock absorption effect. [0004] For example, Chinese patent CN202219710 discloses a universal wheel, which includes a wheel brac...

AI Technical Summary

Problems solved by technology

[0003] The wheel frame of the shock-absorbing universal wheel in the prior art is mostly composed of one body, the stability of the wheel frame is not high, and the shock absorption is mostly realized by an oil pressure buffer device, which not only causes the universal wheel to be bulky, but also has a long time The use of the oil pressure device will cause oil leakage, which will not achieve the best shock absorption effect.

[0004] As Chinese patent CN202219710 discloses a universal wheel, it includes a wheel bracket, a wheel fixed at one end of the wheel bracket, a rivet, a carbon steel bearing and a wheel seat, and the carbon steel bearing is arranged on the wheel bracket and the Between the fixed parts and with the wheel bracket, although the left and right shaking of the universal wheel assembly is avoided, its mobility is not high, and the stability of shock absorption is not high, and it can only be used in the vertical direction. shock absorption, and the shock absorption capacity of the entire device cannot be adjusted, so the shock absorption effect of the universal wheel is not optimal

Images