CN101066234B

CN101066234B - Liftable and movable wheelchair

Info

Publication number: CN101066234B
Application number: CN2007100173462A
Authority: CN
Inventors: 何贵平; 段红燕; 于彩云; 刘涛; 李秀文; 周淑窈
Original assignee: Lanzhou University of Technology
Current assignee: Lanzhou University of Technology
Priority date: 2007-01-24
Filing date: 2007-01-24
Publication date: 2010-06-09
Anticipated expiration: 2027-01-24
Also published as: CN101066234A

Abstract

The liftable and movable wheelchair has one fork lift mechanism comprising two fork rods hinged separately to two sliding sleeves; two, one right and one left, cross bars; front and rear uprights, one frame support, one screw mechanism comprising lead screw and nut, one link rod connected to the sliding sleeves, two, one right and one left, guide rails hinged to the frame support, one back with two pulley blocks and one chair top with two pulley blocks.

Description

Liftable and movable wheelchair

Technical field

Involved in the present invention is a kind of used wheelchair of people with disability with lifting, translation functions, and it also has functions such as lifting, translation except having the used function of riding instead of walk of taking turns Wheel-chair of general people with disability.

Background technology

At present, the wheel Wheel-chair that is provided on the market, major function is in order to solve people with disability's the problem of riding instead of walk.But, how to solve handicapped patient is taken turns Wheel-chair up and down, this is a difficult point in people with disability or home-bound patient's nursing, because people with disability or hemiplegic patient action do not have self-care ability, so often need to solve more than 2 people or 2 people patient's problem of wheelchair up and down.Emphasis of the present invention is not only for the patient provides a kind of walking-replacing tool, and provides convenience when taking turns Wheel-chair up and down for the patient.

Summary of the invention

The invention provides a kind of novel wheelchair with lifting and locomotive function.

Liftable and movable wheelchair, wheelchair lower carriage 10 by about two first cross bar 10-1 and four column 10-2 that are vertically mounted on the first cross bar 10-1 form, vehicle body upper bracket 15 is installed in the upper end of four columns of wheelchair lower carriage, wheelchair lower carriage 10 is installed in by two rear column 10-2 ' that are positioned at rear side on the bearing holder (housing, cover) of rotating shaft of road wheel 8, propelling sheave 12 is installed in the lower end of two front column 10-2 that are positioned at direction of advance, one scissor-type lifting mechanism 9 is arranged, the end of two active scissors rod 9-1 is hinged on respectively on two the first sliding sleeve 9-2, about two first sliding sleeve 9-2 are installed in respectively on two first cross bar 10-1, install respectively on the column of front and back at the two ends of the second cross bar 10-1 ', and it is parallel with vehicle body upper bracket 15, initiatively the other end of scissors rod 9-1 is hinged on the second sliding sleeve 9-5, the second sliding sleeve 9-5 is installed on the second cross bar 10-1, by leading screw 13-3, nut 13-2 forms screw mechanism 13, the external part of leading screw 13-3 is connected the place, centre position of first connecting rod 9-6 by connector 13-4, the two ends of first connecting rod 9-6 are connected on two the first sliding sleeve 9-2, and handle 13-1 is installed on the nut 13-2; About the end of two second guide rail 14-2 be hinged on two tail ends of vehicle body upper bracket 15 respectively, the dorsal part of wheelchair back 2 be separately installed with two groups with second pulley 6 of two second guide rail 14-2 sliding-contact ', two group of first pulley 6 is installed below the seat 5, about two first guide rail 14-1 be installed in respectively on the vehicle body upper bracket 15, two group of first pulley 6 respectively with about two first guide rail 14-1 sliding-contact.

Beneficial effect of the present invention: utilize screw mechanism and four-bar mechanism, according to the height of patient's needs scalable wheelchair.The chair back can be fallen, form stretcher type double track travel mechanism, make things convenient for patient's wheelchair up and down with seat, the back chair back and auxiliary guide rail.

Description of drawings

Fig. 1 is a side view of the present invention, and its right and left structure is symmetric, and Fig. 2 is the structure chart that removes the chair back, and Fig. 3 is a unfolding assumption diagram, and Fig. 4 is the view of organizing work.

The specific embodiment

As Fig. 1, Fig. 2, shown in Figure 3, Liftable and movable wheelchair, wheelchair lower carriage 10 by about two first cross bar 10-1 and four column 10-2 that are vertically mounted on the first cross bar 10-1 form, vehicle body upper bracket 15 is installed in the upper end of two columns of wheelchair lower carriage 10, wheelchair lower carriage 10 is installed in by two rear column 10-2 ' that are positioned at rear side on the bearing holder (housing, cover) of rotating shaft of road wheel 8, propelling sheave 12 is installed in the lower end of two front column 10-2 that are positioned at direction of advance, one scissor-type lifting mechanism 9 is arranged, two initiatively scissors rod 9-1 be hinged on respectively on two sliding sleeve 9-2, about two sliding sleeve 9-2 are installed in respectively on two first cross bar 10-1.As shown in Figure 2, install respectively on the column of front and back at the two ends of the second cross bar 10-1 ', and it is parallel with vehicle body upper bracket 15, initiatively the other end of scissors rod 9-1 is hinged on the sliding sleeve 9-5, sliding sleeve 9-5 is installed in the second cross bar 10-1 ', forms screw mechanism 13 by leading screw 13-3, nut 13-2, and the external part of leading screw 13-3 is connected the place, centre position of first connecting rod 9-6 by connector 13-4, the two ends of first connecting rod 9-6 are connected on two sliding sleeve 9-2, and handle 13-1 is installed on the nut 13-2; About the end of two second guide rail 14-2 be hinged on two tail ends of vehicle body upper bracket 18 respectively, the dorsal part of wheelchair back 2 be separately installed with two groups with second pulley 6 of two second guide rail 14-2 sliding-contact ', two group of first pulley 6 is installed below the seat 5, about two first guide rail 14-1 be installed in respectively on the vehicle body upper bracket 15, two group of first pulley 6 respectively with about two first guide rail 14-1 sliding-contact.

As Fig. 1, Fig. 2, shown in Figure 3, seat retaining mechanism 7 is quadric chains, wherein manually crank throw 7-1 and second connecting rod 7-2 are hinged, second connecting rod 7-2 and the third connecting rod 7-3 that is hinged on the first connecting rod 9-6 are hinged, and the other end connection that tail end has the crank throw 7-4 of button pin is hinged on the same hinge with third connecting rod 7-3.

As shown in Figure 1, other Reference numerals and name are called: wheelchair pushing hands 1, back angle adjustment pull bar 3, handrail 4, foot-operated and subsidiary body 11.

As shown in Figure 1, when the road wheel 8 of wheelchair behind the precalculated position, just wheelchair back 2 can be fallen, pull out the auxiliary guide rail that is articulated on the upper bracket 15, unclamp seat retaining mechanism 7, just seat 5 and back 2 can be promoted along guide rail 14, form the stretcher type structure, make things convenient for patient's wheelchair up and down.Simultaneously, the back 2 of wheelchair can be adjusted the position of back angle adjusting yoke 3 according to the needs of function of human body, makes back be in different angles, is beneficial to the patient and adjusts sitting posture, prevents the generation of decubital ulcer.

In order to adapt to the requirement of user to differing heights, be provided with scissor-type lifting mechanism 9 at wheelchair lower carriage 10 and 5 of wheelchair seats, when rotation and lifting handle 13-1, the power that utilizes screw mechanism 13 to provide, drive scissor-type lifting mechanism 9, the wheelchair seat is risen to required height; After mixing up height, the chair back 2 that fell utilizes then and extracts auxiliary guide rail 14 out, the one end is propped up on bed, unclamp chair surface retaining mechanism 7, by the rolling between pulley 6 and slide rail, under the promotion of manpower, just the patient can be delivered on the bed, finish patient's moving between wheelchair and bed.Equally, at needs of patients from the bed or other position when moving on the wheel Wheel-chair, earlier the chair back is set level, then the patient is moved on the stretcher that is formed by seat and back, again seat support is back into normal operation position, set up back, just can realize the function of riding instead of walk.

Claims

1. Liftable and movable wheelchair, the wheelchair lower carriage by about two first cross bars (10-1) and four columns (10-2) that are vertically mounted on first cross bar (10-1) form, vehicle body upper bracket (15) is installed in the upper end of four columns of wheelchair lower carriage, the wheelchair lower carriage is installed in by two rear columns (10-2 ') that are positioned at rear side on the bearing holder (housing, cover) of rotating shaft of road wheel (8), propelling sheave (12) is installed in the lower end of two front columns (10-2) that are positioned at direction of advance, it is characterized in that having a scissor-type lifting mechanism (9), one end of two active scissors rod (9-1) is hinged on respectively on two first sliding sleeves (9-2), about two first sliding sleeves (9-2) are installed in respectively on two first cross bars (10-1), install respectively on the column of front and back at the two ends of second cross bar (10-1 '), and it is parallel with vehicle body upper bracket (15), initiatively the other end of scissors rod (9-1) is hinged on second sliding sleeve (9-5), second sliding sleeve (9-5) is installed on second cross bar (10-1 '), by leading screw (13-3), nut (13-2) is formed screw mechanism (13), the external part of leading screw (13-3) is connected the place, centre position of first connecting rod (9-6) by connector (13-4), the two ends of first connecting rod (9-6) are connected on two first sliding sleeves (9-2), and handle (13-1) is installed on the nut (13-2); About an end of two second guide rails (14-2) be hinged on two tail ends of vehicle body upper bracket (15) respectively, the dorsal part of wheelchair back (2) is separately installed with two groups of second pulleys (6 ') with two second guide rails (14) sliding-contact, two group of first pulley (6) is installed below the seat (5), about two first guide rails (14-1) be installed in respectively on the vehicle body upper bracket (15), two group of first pulley (6) respectively with about two first guide rails (14-1) sliding-contact.

2. Liftable and movable wheelchair according to claim 1, it is characterized in that seat retaining mechanism (7) is a quadric chain, wherein manually crank throw (7-1) is hinged with second connecting rod (7-2), second connecting rod (7-2) is hinged with the third connecting rod (7-3) that is hinged on the first connecting rod (9-6), and the other end and third connecting rod (7-3) that tail end has the crank throw (7-4) of button pin are hinged on the same hinge.