Universal wheel structure

Abstract

The invention provides a universal wheel structure which comprises a connecting base, a support is fixedly connected with the lower end of the connecting base, a wheel body is rotatably connected withthe lower end of the support, a brake mechanism is arranged on the outer side of the connecting base, a short pipe is rotatably connected with the upper end of the connecting base, and a damping mechanism is arranged on the inner side of the short pipe. An anti-collision mechanism and a stabilizing mechanism are arranged in the wheel body, when the wheel body is collided, impact force generated by collision can be reduced through a third spring between a first connecting block and a second connecting block on an inner hub and an outer hub; meanwhile, the stabilizing mechanism is arranged in amatched mode, and when the third spring deforms, a positive rod is made to move towards a fixing sleeve; due to the fact that a stop piece is arranged at the end of the positive rod in the fixing sleeve, elastic stress of the third spring can be organized and consumed through sliding friction of the stop piece in the fixing sleeve, and therefore it can be guaranteed that the stable effect can bekept after the wheel body is impacted.

Description

technical field [0001] The invention relates to the field of universal wheels, and more specifically relates to a universal wheel structure. Background technique [0002] Universal wheels are so-called movable casters. Its structure allows 360-degree horizontal rotation. Casters are a general term, including movable casters and fixed casters. Fixed casters have no rotating structure and cannot be rotated horizontally but can only be rotated vertically. These two types of casters are generally Used together, for example, the structure of the trolley is two fixed wheels at the front, and two movable universal wheels near the push armrest at the rear. The universal wheel means that the bracket installed on the caster wheel can be horizontally 360 degrees under dynamic load or static load. There are many kinds of materials for making universal wheels, the most common materials are: nylon, polyurethane, rubber, cast iron and other materials. Widely used in mining, mechanical equ...

AI Technical Summary

Problems solved by technology

[0003] However, most traditional universal wheels use a rotating bearing to cooperate with casters to rotate directly. During use, due to the complicated road conditions, once such a universal wheel structure is impacted, the force will directly act on the bearing, which is very difficult. It is easy to cause damage to the bearing, which will affect the use of the universal wheel, so a universal wheel structure with excellent impact resistance is required

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