Foldable universal wheel for trolley case

Abstract

The invention discloses a foldable universal wheel for a trolley case, and relates to the technical field of trolley cases. The universal wheel solves the problem that the universal wheel is easily damaged when the trolley case is consigned, and the adaption of a folding structure can maximally reduce space occupied by installing the universal wheel in a case body, thereby increasing the effectivevolume of the case. The universal wheel comprises a rotation supporting frame, a rotating arm and a T-shaped supporting frame, wherein the rotating arm is connected with a mounting seat on the rotation supporting frame through a rotating shaft, the rotating arm can rotate around the rotating shaft in a range of 90 degrees, and a rotation positioning boss of the T-shaped supporting frame cooperates with a first rotation positioning groove or second rotation positioning groove of the rotating arm to achieve circumferential positioning of the T-shaped supporting frame. External force pulls a wheel to drive the T-shaped supporting frame to slide out and rotate 90 degrees, so that the rotation positioning boss cooperates with the second rotation positioning groove, a positioning pin is also loosened, then the rotating arm rotates to a horizontal position, then the positioning pin is locked, and folding and withdrawing of the universal wheel can be achieved. The foldable universal wheel isapplied to the trolley case.

Description

technical field [0001] The invention relates to the technical field of trolley cases, in particular to a universal wheel for a foldable trolley case. Background technique [0002] The trolley case is a kind of suitcase equipped with a trolley and casters, which is convenient and labor-saving in use, so it is widely used when people go out and travel. The casters used in the trolley case generally have two types: fixed casters and movable casters. The mounting bracket of the fixed casters cannot be rotated, so the direction is not easy to control when moving. The movable caster is the so-called universal wheel, which means that the bracket on which the caster wheel is installed can rotate 360 ​​degrees in the horizontal direction, so that the rolling direction of the wheel can automatically adapt to the moving direction of the box or load. Currently known trolley case universal wheels are mostly installed and fixed on the lower surface of the case body, and cannot be stretch...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a universal wheel for a foldable trolley case, so as to solve the problem that the universal wheel may be damaged when the trolley case is consigned at the airport, and at the same time ensure The body has a certain safety height from the ground, and when it is retracted, the universal wheel can occupy the inner space of the box as small as possible.

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