CN2197294Y - Pushchair - Google Patents

Abstract

The utility model relates to a pushchair, which is a manpower vehicle. The utility model is composed of a backrest type chair, relatively independent drive mechanisms, steering devices and braking devices, wherein, the drive mechanisms, the steering devices and the braking devices are arranged at the left and the right sides. A driver can use one of four limbs or any combinatory mode to operate and drive the utility model. Therefore, the utility model can eliminate the trouble that a proper walk substituting tool can not found by people with disabled limbs, old people, weak people and people who can not ride a bicycle. The wheelbase and the seat height of the utility model are half of the wheelbase and the seat height of a common bicycle. The chair back can be folded. Therefore, the land and the space occupation of the utility model is less than a bicycle. The utility model is difficult to turn toward one side during ride, which is safer. A steering back wheel can turn towards automatically. A user doesn't need gripping the handle continuously in straight-line ride. All of the four limbs of a normal person can be exercised by using the utility model.

Description

Pushchair

The utility model relates to a kind of manpower transportation.

At present, disabled person's vehicle are wheelchair, hand-propelled tricycle and motor-driven instead of walk for invalids car etc., and wherein, wheelchair drives difficulty, only is fit to indoor or small distance movement, and other are then comparatively huge, heavy, use inconvenience; Secondly, then require people to possess the balance ability by bike, skilled operating skill, and must together cooperate by four limbs, otherwise careless slightly being easy to fallen down, and therefore, limbs have disability and old, weak, milk-livered person that the difficulty that can not find the convenient vehicle is often arranged slightly.

It is little that the purpose of this utility model provides a kind of volume, has comfortable seat and multiple driving, maneuverability pattern again, both had been applicable to the normal person, also is applicable to limbs partly disabled and non-motorized vehicles old, that can not bicycle rider use.

The utility model is to realize like this, on the skeleton before the seat of Wheel-chair is placed between two-wheel and trailing wheel, high and the front and back wheel wheelbase of seat all has only half of bicycle approximately, and is therefore, close with vertical resistance to capsizing of bicycle, but because center of gravity is low, can resist rollover again, so the sense of security is stronger, compact conformation again, volume is little, is convenient to park; Left side at the seat, right both sides, the skeleton front axle of encorbelmenting, be used to install drive rocker and turn to, the joystick of brake equipment, driver train is a quadric linkage, have foot-operated under the rocking bar, on the section of prolonging as shaking handgrip, crank gear and flywheel are pitch wheel, flywheel inner ring and front axle are fixed, like this, no matter left, the right side, but with the equal drive rocker of pedal or palm, when rocking bar reaches the most preceding end position, elastic appendages is to the pulling force of back upper place, can help pull bar, rocking bar resets, and the circumference rotation backward of guiding crank gear do, correctly drives flywheel, front axle and front-wheel drive whole car; The technical scheme of steering hardware can be that steering arm is used a hauling rope respectively for upper and lower two sections, links to each other with the back vent both sides by the guiding small sheave, and is perhaps, with a connecting rod that steering arm lower end and back vent side is hinged.Like this, pulling joystick can make trailing wheel turn to the direction of needs; Brake equipment is at trailing wheel two brakes to be installed, and causes the both sides brake activation lever respectively; Respectively there is independence in the place ahead, both sides, can coefficiently drive again, turn to, brake equipment, drive rocker, turn to, the brake equipment joystick all has upper and lower two sections, can be respectively applied for hand or pin and handle.

Advantage of the present utility model: 1, hand, pin can be independent, also can drive jointly and handle.Therefore, applied widely, limbs partly the disabled and old, can people by bike all can not use, normal person's four limbs can obtain motion, also can have days off by turns or double doing embraced a child, held thing such as thing; 2, high of seat is equivalent to chair, and center of gravity is low, and three-wheel is stable, and total sense of security is better, and ride comfort can be used as chair everywhere and uses; 3, compact conformation, volume are little, and floor area is about 0.65m * 1.0m=0.65m ², than bicycle 0.55 * 1.8=0.99m ²Still less, after the chair back was folded down forward, whole car can be holded up forward, and taking up an area of only is 0.65 * 0.7=0.45m ², 0.45 * 0.9=0.4m takes up room ³, therefore, be convenient to park.

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is the utility model driving principle scheme drawing.

Fig. 2 is one of a utility model steering hardware technical scheme scheme drawing.

Fig. 3 is two scheme drawings that the utility model turns to technical scheme.

Fig. 4 is a Wheel-chair embodiment vertical profile constructional drawing.

Fig. 5 is a Wheel-chair embodiment front elevation.

Among the figure 1, seat 2, skeleton 3, back vent 4, rear axle 5, trailing wheel 6, front axle 7, front-wheel 8, rocking bar 9, foot-operated 10, connecting rod 11, elastic appendages 12, crank gear 13, flywheel 14, steering hardware 15, brake equipment

In Fig. 1, actuating device is a quadric linkage, have under the rocking bar (8) foot-operated (9), last extension is as handgrip, crank gear (12) and flywheel (13) engagement, flywheel (13) inner ring and front axle (6) are fixing, when rocking bar (8) and connecting rod (10) reach the most preceding end position, elastic appendages (11) acts on the pulling force of pull bar (10) to the back upper place, help rocking bar (8) and pull bar (10) to reset backward, simultaneously, guiding crank gear (12) rotates backward, and realizes effectively driving forwards the purpose of flywheel (13).

In Fig. 2, hinged in the joystick of steering hardware (14) with skeleton, use a hauling rope respectively for upper and lower two sections, be connected with back vent (3) both sides by the guiding small sheave.

In Fig. 3, the steering arm lower end is by pivotally attached connecting rod and back vent (3) are hinged with side with it.

In Fig. 4, embodiment shown in Figure 5, the bearing of front axle (6) back vent (3) and steel pipe or other shaped steel are welded into skeleton (2), the axle and skeleton (2) bolted of rocking bar (8), crank gear (12), the joystick anchor shaft of steering hardware (14), brake equipment (15) can be directly and skeleton weld; The seat support of seat (1), the chair back can be hinged with skeleton (2) respectively, and like this, both fixing seat (1) can be folded down the chair back or seat support be dug again, was convenient to park or overhaul; In addition, wanigan or shopping indigo plant can also be set under seat support or behind the chair back.

Claims (4)

1, a kind of Wheel-chair, by seat, skeleton, back vent, rear axle, trailing wheel, front axle, front-wheel, rocking bar, foot-operated, connecting rod, elastic appendages, crank gear, flywheel, steering hardware, compositions such as brake equipment, it is characterized in that seat be placed in before on the skeleton between two-wheel and the trailing wheel, in the both sides, seat, the skeleton front axle of encorbelmenting, drive rocker is installed and turns to, the joystick of brake equipment, actuating device is a quadric linkage, crank gear and flywheel crown gear engagement, flywheel is fixed in front axle, trailing wheel is a wheel flutter, and the back vent both sides are connected with joystick with connecting rod or hauling rope.

2, the described Wheel-chair of claim 1 is characterized in that and arranged on left and right sides respectively has relatively independent driver train and turns to, brake equipment.

3, the described Wheel-chair of claim 1 is characterized in that having under the drive rocker foot-operated, and rocking bar makes progress extension as shaking handgrip.

4, the described Wheel-chair of claim 1 is characterized in that rod rear end links to each other with the skeleton rear portion with the elastic appendages of assisting to reset.

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