Trolley case having suspension structure and separated middle frame and rotating shaft

Abstract

The invention provides a trolley case having a suspension structure and a separated middle frame and a rotating shaft. The trolley case comprises a pull rod, a rear shell, a middle frame structure anda front shell; the middle frame structure comprises a rotating shaft structure and a pair of middle frames, wherein one middle frame is connected with the rear shell, and the other middle frame is connected with the front shell; the rotating shaft structure comprises a pair of rotating shafts and a spindle, wherein one rotating shaft is clamped and connected to one middle frame, and the other rotating shaft is clamped and connected to the other middle frame; a pair of rotating shafts are movably connected with each other through the spindle; a pair of middle frames are locked by a linkage lock assembly; and suspension wheels are arranged at four corners of the bottom of the trolley case. The trolley case having the suspension structure and the separated middle frame and the rotating shaftprovided by the invention is not easy to deform, smoother in pulling and walking, reduces the strength of the human wrist, can be easily closed when filled with luggage, and provides a light experience.

Description

technical field [0001] The invention relates to a trolley case, in particular to a trolley case with a frame and rotating shaft separated in a shock-absorbing structure. Background technique [0002] The trolley case refers to the suitcase with a trolley and rollers. It is a must-have item for people to travel because of its convenient use. With the rapid development of the tourism industry, the growth of the travel market has brought consumers an increasing demand for trolley cases. For The trolley case business has brought new opportunities and challenges. [0003] At present, some trolley cases on the market lack the shock-absorbing function, and although the other part realizes shock-absorbing energy by setting springs, the assembly is complicated and the cost is high. In addition, ordinary zipper suitcases are easily deformed, resulting in inflexible movement of the wheel seat. The conventional mid-frame box is too heavy, which increases the weight of the luggage and r...

AI Technical Summary

Problems solved by technology

[0003] At present, some trolley cases on the market lack the shock-absorbing function, and although the other part realizes shock-absorbing energy by setting springs, the assembly is complicated and the cost is high. In addition, ordinary zipper suitcases are easily deformed, resulting in inflexible movement of the wheel seat. The conventional mid-frame box is too heavy, which increases the weight of the luggage and requires greater force to drag. In addition, the conventional locks on the market require a lot of force to press after the luggage is full.

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