Wheel diameter adjusting structure for travelling trolley case

Abstract

The invention relates to the technical field of storage tools for travelling and in particular relates to a wheel diameter adjusting structure for a travelling trolley case. According to the wheel diameter adjusting structure for the travelling trolley case, provided by the invention, an outer-side transverse rod of a connection supporting rod is axially connected with a bottom rolling wheel composed of a shaft barrel, a lateral inner thread connection pipe, an arc-shaped supporting plate, an inner guide pipe, an inner adjusting screw rod and an extrusion spring; the distance between the arc-shaped supporting plate and the shaft barrel is adjusted through a thread by utilizing the inner adjusting screw rod, so that changing the external diameter of rolling wheel freely according to the requirements to make the structure of the rolling wheel adjustable, and the adjustment is realized conveniently through only rotating the inner adjusting screw rod, the operation is simple and convenientand an applicable range is wider; the extrusion spring is matched so that the arc-shaped supporting plate and the shaft barrel are elastically connected and the vibration absorption performance is greatly improved; when the structure is used on a jolted road surface, a buffering stroke is lifted through expanding a wheel diameter so as to effectively reduce the jolt of the case and the stabilityis improved.

Description

technical field [0001] The invention relates to the technical field of travel storage appliances, in particular to a wheel diameter adjustment structure for a travel trolley case. Background technique [0002] Suitcase (suitcase) is a class in bags. It includes a luggage body, a telescopic pull rod and a luggage bottom wheel, and is widely used because of its convenience. Suitcases have a long history. In order to facilitate the movement of traditional suitcases, moving rollers are installed at the bottom, but the structure of the moving rollers currently used in suitcases is simple and fixed, and cannot be adjusted, and lacks an elastic buffer mechanism, resulting in a relatively large impact on the box when used on bumpy roads. Large, and the size of the wheel diameter cannot be changed according to needs, resulting in limited stability of the box. Contents of the invention [0003] The technical problem to be solved by the present invention is: in order to solve the ...

AI Technical Summary

Problems solved by technology

Traditional suitcases are equipped with moving rollers at the bottom for easy movement, but the structure of the moving rollers currently used in suitcases is simple and fixed, and cannot be adjusted, and lacks an elastic buffer mechanism, resulting in a relatively large impact on the box when used on bumpy roads. Large, and the size of the wheel diameter cannot be changed according to the needs, resulting in limited stability of the box

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