CN202637317U

CN202637317U - Wheelchair provided with auxiliary mechanism and having capability of going upstairs and downstairs

Info

Publication number: CN202637317U
Application number: CN 201220296365
Authority: CN
Inventors: 徐宏伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-21
Filing date: 2012-06-21
Publication date: 2013-01-02
Anticipated expiration: 2022-06-21

Abstract

The utility model relates to a wheelchair provided with an auxiliary mechanism and having the capability of going up and down stairs, which is provided with a wheelchair body and an auxiliary mechanism. The auxiliary mechanism is provided with a bracket; a motor and a speed reducer are arranged in the bracket; a driving chain wheel and a driven chain wheel which are connected by a chain are arranged outside the bracket; the chain is fixedly connected with two L-shaped hook plates; the driving chain wheel is driven by the torsion output by the speed reducer to drive the chain to rotate, so that the L-shaped hook plates on the chain hook the corners of the stair to lift up the wheelchair body to operate toward the previous stair of stairs; and in the process of going downstairs, a reversing switch is started, a positioning wheel is utilized to carry out positioning and the L-shaped hook plates reversely operate, so that the wheelchair operates toward the next stair of the upstairs. The wheelchair is labor-saving to use, is reliable, has a simple structure, and is light in weight, small in size and low in cost; and when the auxiliary mechanism is not used, the wheelchair cannot be influenced to be pushed on the flat ground.

Description

But the wheelchair with auxiliary body's up/down steps

Technical field

This utility model discloses a kind of wheelchair, but is specially a kind of wheelchair with auxiliary body's up/down steps.

Background technology

Raising along with social development and people's living standard, more and more handicapped people can both rely on the wheelchair outdoor activity of going on a journey, touch society and associate with other people, this physical and mental health for them is very useful, also make their quality of life obtain further raising, although a lot of public places all are specially provided with wheelchair designated lane or exclusive facility, but existing common place does not mostly all have the improvement of being correlated with for the discrepancy of wheelchair, and these places are places that the wheelchair user often comes in and goes out and lives, the stair for ordinary people's walking common in these places can be taken advantage of wheelchair-bound people and help the pusher to cause great puzzlement, need the pusher that helps more than two to praise wheelchair by manpower, wheelchair could be brought up to from stair and be moved down, waste of manpower, muscle power, taken advantage of wheelchair-bound people to cause injury because of carrying wheelchair mismate easily again, so, the electric wheelchair that some can automatic up-down stairs has appearred on the market, but the most volume of these electric wheelchairs is large, weight is high, complex structure, expensive, general wheelchair user is difficult for accepting, and the some of them volume is large, no matter stair activity still uses on the level land the high wheelchair of weight, very inconvenient, and bulky wheelchair is put at home, and it is larger to take up room.

The utility model content

But the purpose of this utility model provides a kind of wheelchair with auxiliary body's up/down steps, when the level land, can be used as common wheelchair by helping the pusher to carry out, when running into step, utilize driven by power auxiliary body to make the wheel-chair up/down steps, alleviate and help pusher's labor intensity, and volume is little, lightweight, price is low.

The technical solution of the utility model is: but with the wheelchair of auxiliary body's up/down steps, have wheel-chair and auxiliary body, it is characterized in that: described auxiliary body has support, the upper hanging plate that is connected is equipped with in the cradle back upper end, quick-speed jigs, the lower lying plate that is connected is equipped with in the cradle back lower end, lower lying plate and wheel-chair sill hook joint, upper hanging plate is connected after articulating by quick-speed jigs and wheel-chair entablature, in the described support motor and speed reducer is housed, the output shaft of motor and the power shaft of reductor are connected, each is equipped with connecting plate to the output shaft of reductor both sides successively in the outside of support by support, drive sprocket, location-plate, wherein the output shaft of an end of connecting plate and reductor is flexibly connected, the other end of connecting plate is provided with bearing block, bearing block and support are connected, bearing is housed in the bearing block, the driven shaft of flexible connection is housed in the bearing, the driven shaft external part is fixed with driven sprocket, driven sprocket links by chain and drive sprocket on the output shaft that is connected in reductor, be fixed with two L shaped plates that collude on the described chain, the output shaft of described location-plate and reductor is flexibly connected, location-plate is provided with the chute corresponding with the wheel-chair sill, the chute top and bottom are hook-shaped, latch is housed on the location-plate, prelocalization wheel and the rear locating wheel of flexible connection are housed respectively on the angle, front and back end, location-plate below, power supply also is housed on the described wheel-chair, power supply is connected with motor by electric wire, reversal switch and remote circuit gauge tap are housed on the power supply, the remote signal emission switch is housed on the handle of wheel-chair.

Utilize the torsion of reductor output to drive the rotation of drive sprocket drive chain, make L shaped on the chain collude the turning that plate catches on stair, move on the upper level step of stair with the lifting wheel Wheel-chair, in the time of downstairs, start reversal switch, utilize locating wheel to position, the L shaped plate inverted running that colludes, wheel-chair is moved on next joint step of stair, the utility model has the advantages that: easy to use, laborsaving, simple in structure, lightweight, volume is little, cost is low, reliable, and auxiliary body does not affect wheel-chair in the implementation on level land when not using.

Description of drawings

But Fig. 1 is the structural representation of the wheelchair of this utility model band auxiliary body up/down steps;

Fig. 2 is the A-A profile of Fig. 1;

Fig. 3 is the B-B profile of Fig. 1;

But Fig. 4 is auxiliary body's operation principle sketch map of the wheelchair of this utility model band auxiliary body up/down steps.

1 remote circuit gauge tap among the figure, 2 power supplys, 3 electric wires, 4 supports, 5 motors, the output shaft of 6 motors, 7L shape is colluded plate, 8 chains, 9 sills, the power shaft of 10 reductors, 11 reductors, 12 rear locating wheels, 13 latches, 14 location-plates, 15 connecting plates, 16 entablatures, 17 upper hanging plates, 18 carry handle, 19 reversal switches, 20 remote signal emission switch, 21 quick-speed jigs, 22 driven sprockets, 23 driven shafts, 24 drive sprockets, the output shaft of 25 reductors, 26 bearing blocks, 27 lower lying plates, 28 prelocalizations wheel, 29 is hook-shaped.

The specific embodiment

But the wheelchair with auxiliary body's up/down steps; have wheel-chair and auxiliary body; main points of the present utility model are to install auxiliary body additional at wheel-chair; make common wheel-chair have the function of auxiliary up/down steps; can be helped the pusher to save a large amount of muscle power; described auxiliary body has a support 4; the upper hanging plate 17 that is connected is equipped with in the cradle back upper end; quick-speed jigs 21; the lower lying plate 27 that is connected is equipped with in the cradle back lower end; during installation; first with lower lying plate and wheel-chair sill 9 hook joints; be connected after again upper hanging plate being articulated by quick-speed jigs and wheel-chair entablature 16; upper hanging plate; lower hook plate; quick-speed jigs and wheel-chair upper; sill is supporting structure; can adjust its position according to actual needs; purpose is firm for auxiliary body is installed on the wheel-chair; use reliable; motor 5 and reductor 11 are housed in the support of described auxiliary body; the output shaft 6 of motor is connected with the power shaft 10 of reductor; according to actual needs; motor can adopt the model that carries reductor; cooperate an other reductor can effectively increase the torsion of output shaft; each is equipped with connecting plate 15 to the output shaft of reductor both sides successively in the outside of support by support; drive sprocket 24; location-plate 14; wherein the output shaft 25 of an end of connecting plate and reductor is flexibly connected; the other end of connecting plate is provided with bearing block 26; bearing block and support are connected; bearing is housed in the bearing block; the driven shaft 23 of flexible connection is housed in the bearing; the driven shaft external part is fixed with driven sprocket 22; driven sprocket links by chain 8 and drive sprocket on the output shaft that is connected in reductor; be fixed with two L shaped plates 7 that collude on the described chain; for make mechanism operation steadily, can install one deck rubber layer additional at the work surface of L shaped hook plate, play the effect of buffering; described connecting plate contour dimension is slightly larger than chain; can effectively prevent from like this bringing potential safety hazard because the slit of chain snaps into step edge to wheel-chair, also play the effect of protection chain, the output shaft of described location-plate and reductor is flexibly connected; location-plate is provided with the chute corresponding with the wheel-chair sill; it is hook-shaped 29 that the chute top and bottom are, and latch 13 is housed on the location-plate, and the effect of latch is when the wheel-chair sill is positioned at chute lower end hook-shaped; latch is opened; location-plate is stuck on the sill, makes the location-plate built on stilts, top bar or level land when carrying out at wheel-chair like this; location-plate can not hinder the use of wheel-chair; described chute upper end hook-shaped plays the effect spacing to location-plate, and when latch was closed, location-plate hung downwards as the center of circle because of the output shaft of gravity take reductor; when to certain distance; the hook-shaped sill that catches on of chute upper end makes location-plate stop to hang, and prelocalization wheel 28 and the rear locating wheel 12 of flexible connection is housed respectively on angle, front and back end below the location-plate, and the prelocalization wheel is wheelchair plays the location to auxiliary body when getting out of a predicament or an embarrassing situation effect; rear locating wheel is wheel-chair plays the location to auxiliary body when topping bar effect; power supply 2 also is housed on the described wheel-chair, and power acquisition is connected with motor by electric wire 3 with lithium battery or Ni-MH battery etc., power supply; reversal switch 19 and remote circuit gauge tap 1 are housed on the power supply; the remote signal emission switch 20 of remote circuit gauge tap is equipped with in the rotating operation of reversal switch control motor on the handle of wheel-chair, when remote signal emission switch during to a signal of remote circuit gauge tap; remote circuit gauge tap control power supply by electric wire to the motor transmission of electric energy; make motor rotation, when the remote signal emission switch was given a signal of remote circuit gauge tap again, remote circuit gauge tap control power supply stopped to the motor transmission of electric energy; motor shuts down; because the structure of the handle of wheel-chair for stretching so the case that this utility model provides is that the remote circuit gauge tap is designed to the reception of wireless signals end, is designed to the wireless signal transmission end with the remote signal emission switch; can control easily the startup of motor like this and stop, also both can being connected with holding wire.

But the wheelchair with auxiliary body's up/down steps of the present utility model is when topping bar, first location-plate is stuck on the wheel-chair sill with latch, prevent that it from hindering wheel-chair climbing step, again with the wheel-chair back side towards the step direction, pull back wheel-chair, make rear locating wheel or connecting plate near the step vertical, at this moment, press the running of remote signal emission switch starter motor, motor moves the L shaped plate that colludes that moment of torsion passes on the reductor drive chain, when colluding plate and catch on the step turning, collude integrated circuit board, rely on this moment the torsion of reductor output that wheel-chair is upwards lifted as fulcrum to collude plate, the power of lifting that help the pusher to produce by auxiliary body this moment, gently draw wheel-chair to be about to wheel-chair to the step direction and move the step top to, press the remote signal emission switch and stop motor rotation this moment, even wheel-chair has been finished the action of topping bar; When needs are got out of a predicament or an embarrassing situation, press first reversal switch, again the latch on the location-plate is opened, make the prelocalization wheel of location-plate take the output shaft of reductor as center of circle front end freely sagging, wheel-chair is swung back a little, before making, the whole kiss the earths of rear locating wheel are as support wheel, slow push boat Wheel-chair makes the prelocalization wheel just in time drop on the step corner, at this moment forward, press the running of remote signal emission switch starter motor, motor passes to reductor with moment of torsion and drives the L shaped plate inverted running that colludes on the chain, and when colluding plate and move to the step end face, wheel-chair is lifted, and overturn by its fulcrum, when colluding plate and turning over turnback, the L shaped plate that colludes just in time hangs over the step corner, along with remaining in operation of chain when L shaped, until wheel-chair is fallen to the step bottom stably, even wheel-chair has been finished the action of getting out of a predicament or an embarrassing situation.

Why the auxiliary body of wheel-chair of the present utility model adopts the L shaped plate that colludes as support and the hanging member of up/down steps, because of its arm of force weak point, can use low power motor, can reach instructions for use, can not produce because the arm of force is long needs powerful motor, and under same output power of motor, the little arm of force can be born higher load simultaneously, make some body weight the higher person use wheel-chair up/down steps of the present utility model also can steadily, reliably, also reduce cost simultaneously.

When but the wheelchair with auxiliary body's up/down steps of the present utility model uses on the level land, can be used as the ordinary wheel Wheel-chair carries out, entrained auxiliary body top is provided with carries 18, make things convenient for user to move or carry and carry auxiliary body, utilize the quick-speed jigs on the support efficiently auxiliary body to be pulled down or to load onto, convenience very, alleviated greatly the labor intensity that helps the pusher, also so that the scope of application of wheelchair has obtained further expansion, and whole auxiliary body volume is little, lightweight, mechanism is simple, reliable, it is cheap that it forms the component market, can satisfy the vast consumer group's needs.

Claims

1. but with the wheelchair of auxiliary body's up/down steps, have wheel-chair and auxiliary body, it is characterized in that: described auxiliary body has support, the upper hanging plate that is connected is equipped with in the cradle back upper end, quick-speed jigs, the lower lying plate that is connected is equipped with in the cradle back lower end, lower lying plate and wheel-chair sill hook joint, upper hanging plate is connected after articulating by quick-speed jigs and wheel-chair entablature, in the described support motor and speed reducer is housed, the output shaft of motor and the power shaft of reductor are connected, each is equipped with connecting plate to the output shaft of reductor both sides successively in the outside of support by support, drive sprocket, location-plate, wherein the output shaft of an end of connecting plate and reductor is flexibly connected, the other end of connecting plate is provided with bearing block, bearing block and support are connected, bearing is housed in the bearing block, the driven shaft of flexible connection is housed in the bearing, the driven shaft external part is fixed with driven sprocket, driven sprocket links by chain and drive sprocket on the output shaft that is connected in reductor, be fixed with two L shaped plates that collude on the described chain, the output shaft of described location-plate and reductor is flexibly connected, location-plate is provided with the chute corresponding with the wheel-chair sill, the chute top and bottom are hook-shaped, latch is housed on the location-plate, prelocalization wheel and the rear locating wheel of flexible connection are housed respectively on the angle, front and back end, location-plate below, power supply also is housed on the described wheel-chair, power supply is connected with motor by electric wire, reversal switch and remote circuit gauge tap are housed on the power supply, the remote signal emission switch is housed on the handle of wheel-chair.