CN201759763U

CN201759763U - Hand-push stair-climbing chair

Info

Publication number: CN201759763U
Application number: CN2010202235437U
Authority: CN
Inventors: 张波
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-12
Filing date: 2010-06-12
Publication date: 2011-03-16
Anticipated expiration: 2020-06-12

Abstract

The utility model discloses a hand-push stair-climbing chair, comprising a seat; the bottom of the seat is provided with a roller mechanism used as a stair-climbing supporting point, the back part of the seat is provided with a fast jack for lifting the seat, and the two sides of the bottom of the seat are provided with dual caster devices; and the dual caster devices can rotate at the lower part of the bottom of the chair and are used for switching for climbing the stairs and moving on the ground. The hand-push stair-climbing chair adopts the following technical scheme that the double-rolling pulley mechanism is erected on a step as the supporting point for climbing the stairs, the fast jack jacks the seat stably, the dual caster devices rotate and drive the seat to lift simultaneously so as to lead the double-rolling pulley mechanism to be placed on a higher step, the fast jack jacks the seat again, so that the dual caster devices steps the steps of the stairs and the switching of walking on the ground and climbing the stairs is fast realized. The hand-push stair-climbing chair is simple in structure and can climb the stairs only by manual operation.

Description

The hand push stair-climbing chair

Technical field

This utility model relates to a kind of hand push stair-climbing chair.

Background technology

Along with the aging process of Chinese population is accelerated, China old people's quantity sharply rises, and according to reports, the existing aging population quantity more than 60 years old of China has reached 1.6 hundred million, and they are older, body constitution is weak, disease is many, are disadvantaged group.Concerning them, walking all is a very thing of difficulty, let alone stair climbing.Nowadays people living condition's improvement, the height of the floor of residential building increases greatly, most city residential building all is six, seven layers a building, owing to all there is not elevator, be that a huge action hinders upstairs to old, weak, sick, disabled person, the old people can adopt wheelchair as auxiliary walking-replacing tool when walking, but need a people to assist in or the back stair during if go upstairs, and must be with wheelchair, this need expend a large amount of muscle power, and climbing building walk help aid is the ten minutes needs.

The utility model content

The purpose of this utility model is to provide a kind of can not only be used for walking, and the hand push stair-climbing chair of energy stair climbing.

This hand push stair-climbing chair that this utility model provides, comprise seat, the bottom of described seat is equipped with as the idler wheel mechanism of climbing the building fulcrum, the quick jack that is used to lift seat is installed at the back of seat, two bottom sides at seat is equipped with the duplex caster device, this duplex caster device can be in chair bottom rotation, is used for switching climbing the building and moving pacifically.

More steady when climbing the building in order to ensure this utility model, described idler wheel mechanism comprises staggered left bank wheel and the right row's wheel that is installed in the turning rolls front end, and described turning rolls is fixed on the bottom of seat.

Described quick jack comprises cover, wind in chain wheel, the telescoping tube, cover is vertically installed on the seat by a telescoping tube overcoat in the described telescoping tube, have through hole on it with each tooth engagement of chain wheel, described wind fixes on the seat by hinges fixing, and rotates by the fixed handle drive chain wheel that is installed on the chain wheel.

Described duplex caster device comprises front-wheel, duplex foot wheel carrier, trailing wheel, and described duplex foot wheel carrier is L-shaped, and described front-wheel is installed in the long limit end of duplex foot wheel carrier, and described trailing wheel is installed in the short end of duplex foot wheel carrier.

This utility model adopts the idler wheel mechanism frame on step, as the fulcrum of climbing the building, jack pushes up steady jack-up seat fast, the duplex caster device rotates and drives seat simultaneously and rises, and makes idler wheel mechanism cost higher leveled step, and quick jack is the jack-up seat once more, the step that duplex caster device stool is gone upstairs, realized stair-climbing chair level walking and the switching of climbing the building fast, this utility model is simple in structure, needs only just climbing stairs of manual operation.

Description of drawings

Fig. 1 is this utility model structural representation.

Fig. 2 is that Fig. 1 climbs the building and moves a structural representation.

Fig. 3 is that Fig. 1 climbs the building and moves two structural representations.

Fig. 4 is the left TV structure sketch map of Fig. 2.

Fig. 5 is that the A of Fig. 2 is to structural representation.

The specific embodiment

Can find out that from Fig. 1 to Fig. 5 this utility model hand push stair-climbing chair comprises seat 1, idler wheel mechanism 2, quick jack 3, duplex caster device 4.Seat 1 is provided with seat bottom girder 11 and fixed block 12.Idler wheel mechanism 2 comprises turning rolls 21, left bank wheel 22 and right row's wheel 23, left bank wheel 22 and right row's wheel 23 staggered front ends that are installed in turning rolls 21, and turning rolls 21 is fixed on the bottom of seat 1.Jack 3 comprises chain wheel 31 fast, cover 32 in the telescoping tube, telescoping tube overcoat 33, wind 34 and fixed handle 35, telescoping tube overcoat 33 is fixed on the intermediary crossbeam of the chair back of seat 1, cover 32 is enclosed within the telescoping tube overcoat 33 in the telescoping tube, have through hole on it, this through hole can mesh with chain wheel 31 each tooth, wind 34 fixes on the seat 1 by hinges fixing, wind 34 can rotate along hinge, the lower end of wind 34 has groove, fixed handle 35 1 ends are connected in wind 34 grooves, and can in groove, move, the other end of fixed handle 35 is fixedly on the chain wheel 31, wind 34 drives chain wheel 31 and rotates, and cover 32 moves up and down in 31 drive telescoping tubes of chain wheel, thereby realizes that seat 1 rises or descends.Duplex caster device 4 comprises front-wheel 41, duplex foot wheel carrier 42, trailing wheel 43, duplex foot wheel carrier 42 is L-shaped, its rotatable two bottom sides that is installed at seat 1, front-wheel 41 are installed in the long limit end of duplex foot wheel carrier 42, and trailing wheel 43 is installed in the short end of duplex foot wheel carrier 42.

As can be seen from Figure 1, this utility model is when being used for level walking, and the front-wheel 41 and the trailing wheel 43 of duplex caster device 4 land simultaneously, front-wheel 41 and trailing wheel 43 on same horizontal plane, manumotive armrest, seat 1 just can be walked on the level land.

As can be seen from Figures 2 and 3, this utility model is when being used to climb the building, front-wheel 41 and trailing wheel 43 land, idler wheel mechanism 2 is higher than first order shoulder height, when the front end of idler wheel mechanism 2 contacts sidewall between first order step and second level step soon, the wind 34 of the quick jack 3 of hand rotation, fixed handle 35 drives chain wheels 31 and rotates, the through hole of cover 32 engagement in the tooth of chain wheel 31 and the telescoping tube, down motion of cover 32 in the telescoping tube, withstand ground after, seat 1 begins to rise, when seat 1 rises, because action of gravity, duplex foot wheel carrier 42 turns clockwise along fixing point, and trailing wheel 42 breaks away from ground, front-wheel 41 moves backward, promotes seat 1 more forward.When idler wheel mechanism 2 slowly rises on the second stage rank, the human of back pushchair is defeated handrail, allow seat 1 be upturned, idler wheel mechanism 2 rides on the 3rd stage rank, forward rollers contacts with third level step, rotary handle crank 34 once more, driving seat 1 rises, the left bank wheel 22 of idler wheel mechanism 2 and right row's wheel 23 drive the seat balance and move forward, after seat 1 rises to certain altitude, first order step on the duplex caster device 4 beginning stools, shuttling movement, the hand push stair-climbing chair can be climbed up all stairway steps, finishes the building process of climbing.

Claims

1. hand push stair-climbing chair, it is characterized in that comprising seat (1), the bottom of described seat (1) is equipped with as the idler wheel mechanism (2) of climbing the building fulcrum, the quick jack (3) that is used to lift seat is installed at the back of seat (1), two bottom sides at seat (1) is equipped with duplex caster device (4), this duplex caster device (4) can be in chair bottom rotation, is used for switching climbing the building and moving pacifically.

2. hand push stair-climbing chair according to claim 1 is characterized in that described idler wheel mechanism (2) comprises staggered left bank wheel (22) and the right row's wheel (23) that is installed in turning rolls (21) front end, and described turning rolls (21) is fixed on the bottom of seat (1).

3. hand push stair-climbing chair according to claim 1 and 2, it is characterized in that described quick jack (3) comprises cover (32), wind (34) in chain wheel (31), the telescoping tube, cover (32) vertically is installed on the seat (1) by a telescoping tube overcoat (33) in the described telescoping tube, have through hole on it with each tooth engagement of chain wheel (31), described wind (34) fixes on the seat (1) by hinges fixing, and rotates by a fixed handle (35) the drive chain wheel (31) that is installed on the chain wheel (31).

4. hand push stair-climbing chair according to claim 1 and 2, it is characterized in that described duplex caster device (4) comprises front-wheel (41), duplex foot wheel carrier (42), trailing wheel (43), described duplex foot wheel carrier (42) is L-shaped, described front-wheel (41) is installed in the long limit end of duplex foot wheel carrier (42), and described trailing wheel (43) is installed in the short end of duplex foot wheel carrier (42).