Integrated self-opening and self-closing stair-climbing draw-bar box

Abstract

The invention discloses an integrated self-opening and self-closing stair-climbing draw-bar box. The draw-bar box comprises a box body, universal wheels are arranged at the bottom of the box body, a telescopic draw bar is arranged on one side of the box body, one-way wheels are arranged at the bottom of a sliding plate, an inner support is connected with the telescopic draw bar and the box body respectively, limiting connecting rods on the left side and the right side are movably connected with the inner support through a first connecting rod and movably connected with the sliding plate through a second connecting rod, torsional spring connecting rods on the left side and the right side are movably connected with the inner support through a third connecting rod and movably connected with the sliding plate through a fourth connecting rod, a double-rocker mechanism is formed among the limiting connecting rods, the box body, the torsional spring connecting rods and the sliding plate, one end of an elastic device is connected with the inner support, the other end of the elastic device is connected with the fourth connecting rod, and a damping device is arranged between the sliding plate and the inner support. The sliding plate can be automatically opened and closed to assist in climbing stairs, damping and buffering devices are arranged, damage to the box body or fragile products in the box body is avoided, and noise and vibration during stair climbing are greatly reduced.

Description

technical field [0001] The invention relates to the field of bags, in particular to an integrated self-opening and self-closing trolley case for climbing stairs. Background technique [0002] Suitcase is an indispensable tool for people to go out and travel. Most of the traditional trolley suitcases can only be dragged on relatively flat roads. When going up and down stairs, they can only be carried in the hands or on the shoulders, which is not only laborious , and time-consuming, especially when the trolley case is particularly heavy, it is more difficult, stumbling or even unable to move. [0003] At present, most of the suitcases on the market that are convenient for going up and down the stairs are six-wheel or single large-wheel type, which is not universally applicable to stairs with different slopes. Higher steps require a lot of effort to pull, which is very laborious. The shock absorbing device and the buffer device, the jumping and noise during the climbing proce...

AI Technical Summary

Problems solved by technology

[0002] Suitcase is an indispensable tool for people to go out and travel. Most of the traditional trolley suitcases can only be dragged on relatively flat roads. When going up and down stairs, they can only be carried in the hands or on the shoulders, which is not only laborious , and time-consuming, especially when the trolley case is particularly heavy, it is more difficult, stumbling or even unable to move

[0003] At present, most of the suitcases on the market that are convenient for going up and down the stairs are six-wheel or single large-wheel type, which is not universally applicable to stairs with different slopes. Higher steps require a lot of effort to pull, which is very laborious. The shock absorbing device and the buffer device, the jumping and noise during the climbing process are very loud, which is easy to cause great damage to the luggage itself or the fragile items inside, especially the six-rotor and large-rotor type are directional wheels, and cannot be pushed Walking, you can only pull it, it is not labor-saving, and the large size affects the appearance, and it is not convenient to place

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