A detachable box wheel structure

Abstract

The invention discloses a detachable box wheel structure, which relates to the field of luggage, and its main body is composed of a wheel body, a wheel shaft and a wheel frame. The frame and the wheel frame are connected flexibly. The inner wheel frame overcomes the technical problems caused by the material of the wheel shaft. It has higher precision and can cooperate with the wheel frame without gaps to achieve the purpose of effective fit. The inner wheel frame is fixed on the wheel shaft. The upper is integrated with it, and the wheel shaft is movably connected with the wheel frame through the inner wheel frame, so that the problem of non-fitting of the movable joint between the wheel shaft and the wheel frame is solved.

Description

technical field [0001] The invention relates to the field of cases and bags, in particular to a detachable case wheel structure. Background technique [0002] In the current luggage industry, in order to solve the problem of inconvenient replacement of the suitcase wheel after wear, people have improved the structure of the box wheel and designed a detachable box wheel, that is, the wheel shaft and the wheel frame can be separated. Thereby reach the purpose that the wheel set below the wheel frame can be replaced. [0003] Existing detachable box wheels are all wheel shafts directly installed in the wheel frame, and the hardware card on the wheel frame is horizontally matched with the wheel shaft to realize the limit and fixation, as documented in the Chinese Patent Publication No. CN207285487U; this installation method only needs to be operated The hardware card can control the disassembly and assembly of the wheel set, which is very convenient, but in fact, with the curre...

AI Technical Summary

Problems solved by technology

[0003] Existing detachable box wheels are all wheel shafts directly installed in the wheel frame, and the hardware card on the wheel frame is horizontally matched with the wheel shaft to realize the limit and fixation, as documented in the Chinese Patent Publication No. CN207285487U; this installation method only needs to be operated The hardware card can control the disassembly and assembly of the wheel set, which is very convenient, but in fact, with the current technology, it is still impossible to overcome a series of problems such as thermal expansion and contraction of the metal wheel shaft, so that the wheel shaft and the wheel frame can be perfectly matched. That is to say, when the existing wheel shaft is installed in the wheel frame, it cannot fit perfectly with the wheel frame, and there will always be a gap between the top of the wheel shaft and the inner wall of the cover plate of the wheel frame

[0004] Because of the gap between the wheel shaft and the wheel frame, the wheel shaft has room for upward movement in the wheel frame. It should be known that the wheel shaft and the wheel frame are limited by the cooperation of the horizontally arranged hardware cards and the wheel shaft. Landing straight down, when the box wheel is in contact with the ground, the wheel shaft will be forced to generate upward movement potential energy, and the hardware card installed horizontally needs to bear this potential energy, so when the box wheel lands for a certain number of times or the impact generated by the potential energy If the force is large, the hardware card on the wheel frame will be deformed and damaged because it cannot bear the potential energy

Images