Transverse grain draw-bar box

By designing the limit assembly and lifting rod structure in the trolley box, the rollers can be automatically adjusted according to the ground conditions. Combined with the design of the support legs and anti-slip pads, the existing trolley box is solved and the rollers scratch the bottom surface of the box during the vehicle driving, achieving higher stability and protection effects.

CN222675619UActive Publication Date: 2025-03-28JIAXING CHANGHUAN TECH CO LTD
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Patent Information

Application Number
CN202421057356.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-15
Publication Date
2025-03-28
Estimated Expiration
2034-05-15

AI Technical Summary

Technical Problem

The existing trolley case is not convenient for retracting and releasing the bottom rollers, which leads to easy movement or overturning during the vehicle's driving, and the fixed roller position is likely to scratch the bottom surface of the box.

Method used

A horizontal trolley box is designed, adopting a limiting assembly and a lifting rod structure, so that the roller can automatically move up or down according to the ground conditions. The design of the support legs and the anti-slip pad increases the ground contact area and improves stability.

Benefits of technology

Through the design of limit components and lifting rods, the stability of the trolley box during vehicle driving and the protection of the bottom of the box is achieved, avoiding the problem of roller scratching the bottom of the box.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses a cross grain draw-bar box which comprises a box body, a cover body is installed on the surface of the box body in a hinged mode, an inner cavity is formed in the box body, a first spring is fixedly installed in the inner cavity, a lifting rod is fixedly installed at the bottom end of the first spring, and idler wheels are arranged on the bottom face of the lifting rod. Under the action of a second spring, a movable rod moves to drive a limiting rod to move, so that the limiting rod is inserted into a limiting hole below, a lifting rod can be fixed, the bottom surface of a supporting leg and an anti-skid pad are in contact with the ground, the contact area with the ground is increased, and the draw-bar box is more stable when being placed; by arranging the limiting assembly, the limiting rod is moved out of the limiting hole, the lifting rod is pulled outwards, and the distance between the rolling wheels and the box bottom is increased, so that the distance between the box bottom and the ground is increased, and sharp objects on the ground are prevented from scratching the bottom of the box body.
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