Quick folding-unfolding device for electric leisure wheelchair

Abstract

A quick folding-unfolding device for an electric leisure wheelchair comprises a left connection bar, a left connection block, a right connection block, a right connection bar, a spindle, a manual rotary shaft, a fixing hook, a return spring and a fixing shaft; the left connection block and the right connection block are provided with lugs mating with each other, the left connection block and the right connection block form a rotary hinge structure through the spindle, the left connection block is provided with a mounting groove, the manual rotary shaft is rotationally mounted on the left connection block, the fixing hook is fixedly connected with the manual rotary shaft and is positioned in the mounting groove, the manual rotary shaft is parallel to the spindle, the return spring is disposed between the fixing hook and the mounting end of the left connection block, the right connection bar is provided with a clamp groove, the fixing shaft is fixed in the clamp groove and is parallel tothe spindle, and the left connection bar and the right connection bar are collinear when the hook end of the fixing hook is clamped to the fixing shaft. The quick folding-unfolding device provides flexible folding under light weight and is particularly applicable to foldable electric wheelchairs.

Description

technical field [0001] The invention relates to an electric fast folding wheelchair, in particular to a fast folding and retracting device for a folding electric chair. Background technique [0002] With the increase of the elderly population in the society, the problem of social aging has become more and more prominent, and the travel problems of the elderly and the disabled have not been well resolved. Although the market has developed electric leisure wheelchairs for them now, there are two kinds of three-wheeled electric vehicles and four-wheeled electric vehicles, but this type of electric wheelchair also has the following defects in actual use: [0003] ① These models are all evolved from human-powered tricycles. The front frame of this type of electric tricycle is an old-fashioned hurdle type. The hands and feet of the elderly and disabled people are not as flexible as normal young people, and it is very inconvenient to get on and off the car. [0004] ②The whole veh...

AI Technical Summary

Problems solved by technology

[0003] ①These models are all evolved from human-powered tricycles. The front frame of this type of electric tricycle is an old-fashioned hurdle type. The hands and feet of the elderly and disabled are not as flexible as normal young people, and it is very inconvenient to get on and off the car.

[0004] ②The whole vehicle does not have the function of dismantling and stacking, and the parking area is large. For the elderly who live in high-rise buildings in cities and towns, the storage problem of electric tricycles is very serious, especially for families without garages. For them, the old people dare not ask for it, because they are afraid of being stolen outside, and because they are too big and heavy, they can’t be taken upstairs, and they can’t go upstairs by elevator, which is inconvenient to carry.

[0005] ③The function is single and does not have leisure functions such as sitting and lying. The existing electric tricycles can only carry people to walk. When the elderly feel tired, they cannot satisfy the leisure functions of the elderly such as sitting and lyin

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