CN2320233Y - Automatic going up- and down-stairs wheel-chair - Google Patents

Abstract

The utility model relates to a wheelchair which can automatically go upstairs and downstairs, which is composed of a wheelchair part and a drive part, wherein the wheelchair part is composed of a wheelchair frame, a front wheel, a rear wheel and a seat chair which is installed on the wheelchair frame; the drive part is composed of an engine and a transmission box. The utility model is characterized in that the back of the seat chair is provided with a pair of accessory wheels by a rotating shaft which is connected with the wheelchair frame, the pair of accessory wheels which are directly connected with the transmission box are driven to rotate by the transmission box, and the outer ring surfaces of each accessory wheel and the rear wheel are in a straight-tooth shape. The wheelchair is driven by the two wheels, and the straight-tooth structures of the accessory wheels and the rear wheel greatly enhance the biting force and the friction force between the wheelchair and staircases.

Description

Automatically clambing wheel chair car about

This utility model relates to a kind of wheel Wheel-chair that can upward go downstairs automatically.

The existing Wheel-chair of taking turns, no matter be self-driven, or by other people pulling, always in use allow the people feel to require great effort very much, this brings inconvenience for patient (people with disability) and family members thereof." can go up multifunctional wheelchair downstairs " (patent No. 92229410) as the Chinese patent literature announcement, its technical characterictic is, it is made up of wheelchair and drive mechanism and guiding mechanism three parts, drive mechanism respectively is contained in by two walking chains on the tooth of four walking gears and travelling gear, driving chain, driving gear connects, guiding mechanism is raised and the parallel adjustment of seat with the front and back and the walking chain front of safety fork up and down by the walking chain, its technical contribution mainly is on drive part as can be seen, the patent No. is 93229761 " Multipurpose wheelchair car " for another example, and its inventive point also is basically on driving and drive mechanism.

The purpose of this utility model is, proposes a kind of wheel Wheel-chair that drives with power set, and it can make its convenient realization freely go up purpose downstairs.

The realization the technical solution of the utility model is as follows: it comprises by vehicle frame, front-wheel, trailing wheel and is installed in the wheelchair part that the seat on the vehicle frame is formed,

And the drive part of forming by electromotor and transmission case,

Above-mentioned trailing wheel is a drivewheel, and at the back of described seat, the rotating shaft by joining with vehicle frame also is provided with a pair of accessory whorl, and this accessory whorl directly is connected with transmission case, and by its driven rotary,

Described accessory whorl and trailing wheel, its outer ring surface are the straight-tooth shape.

Good effect of the present utility model is, 1) owing to increased a pair of accessory whorl that directly drives in the behind of seat by electromotor and transmission case, this car can be driven by two-wheel (promptly comprising accessory whorl and trailing wheel), power when having strengthened upstairs, 2) the straight-tooth shape structure that above-mentioned accessory whorl and trailing wheel had greatly strengthens the gmatjpdumamics and the frictional force of itself and stair.So, this takes turns the purpose that Wheel-chair can be realized automatic upper and lower stair steadily, safely.

The utility model is described in further detail below in conjunction with accompanying drawing,

Fig. 1 is a structural representation of the present utility model,

Fig. 2 is the vertical view of Fig. 1 in this utility model,

Fig. 3 is the partial sectional view of accessory whorl described in this utility model and trailing wheel.

As shown in Figure 1 and Figure 2, this utility model comprises by vehicle frame 1, front-wheel 2, trailing wheel 3 and is installed in the wheelchair part that the seat on the vehicle frame is formed, and the drive part of forming by motor and transmission case 4, wherein 8 is the wheelchair pushing hands, and above-mentioned trailing wheel 3 is a drivewheel, and its principal character that prior art is made contributions is, back at described seat, rotating shaft 5 by joining with vehicle frame also is provided with a pair of accessory whorl 6, and this accessory whorl can be directly by motor and transmission case driven rotary.Described electromotor can be by electronic or started by gasoline, diesel oil.

And described accessory whorl and trailing wheel, its outer ring surface is the straight-tooth shape.This greatly strengthens the gmatjpdumamics and the frictional force of itself and stair.

In order to make this utility model when not going upstairs, can pack up accessory whorl,, can make it can pack up accessory whorl 6 with rotating shaft by spring 7, pressure handle 9 and vehicle frame flexible connection in order to avoid the attractive in appearance of Wheel-chair taken turns in influence, or do not cause its volume too big.

Claims (1)

1, a kind of automatically up and down clambing wheel chair car, it comprises by vehicle frame, front-wheel, trailing wheel and is installed in the wheelchair part that the seat on the vehicle frame is formed, wherein trailing wheel is a drivewheel,

And the drive part of forming by electromotor and transmission case,

It is characterized in that at the back of described seat, the rotating shaft by joining with vehicle frame also is provided with a pair of accessory whorl, this accessory whorl directly is connected with transmission case, and by its driven rotary,

Described accessory whorl and trailing wheel, its outer ring surface are the straight-tooth shape.

Images