CN102641189B

CN102641189B - Easily-adjusted wheel chair

Info

Publication number: CN102641189B
Application number: CN201210142297.6A
Authority: CN
Inventors: 汪洪波; 何金俊; 青威; 崔靖宇; 梁晓瑞; 汤达; 沈飞
Original assignee: Hefei University of Technology
Current assignee: Hefei University of Technology
Priority date: 2012-05-09
Filing date: 2012-05-09
Publication date: 2014-03-12
Anticipated expiration: 2032-05-09
Also published as: CN102641189A

Abstract

The invention discloses an easily-adjusted wheel chair, which is characterized in that a chair back angle adjustment structure is arranged to be that a chair back is sleeved on a horizontal rotation shaft through a bottom sleeve which can rotate on the horizontal rotation shaft, and a draw bar is towards the front side and is fixedly arranged at the periphery of the sleeve. A lateral plate is fixedly arranged on the lateral portion of a seat plate frame, and a handrail is fixedly arranged on the top portion of the lateral plate. An arc-shaped through groove is arranged on the lateral plate, a pin shaft capable of sliding along the through groove is arranged in the through groove, a shaft end of the pin shaft arranged on the inside of the lateral plate is fixedly connected with the draw bar, a shaft end of the pin shaft arranged on the outside of the lateral plate is a thread section, a clamp nut capable of enabling the pin shaft to be locked in the through groove is in threaded fit with the thread section, and the end portions of the pin shaft are connected with the seat plate frame arranged below the pin shaft through a tension spring with pre-tightening force. A rocking handle is fixedly connected with the periphery of the clamp nut along the radial direction. The easily-adjusted wheel chair can be directly adjusted while users are not needed to leave the chair, and the users feel comfortable.

Description

Easily regulate wheelchair

Technical field

The present invention relates to a kind of wheelchair, particularly a kind of wheelchair with electric lifting chair, adjustable chair-back.

Background technology

In prior art, wheelchair is the function of adjusting back before and after not having easily, up-down adjustment height of seat, generally all need to after user leaves seat, regulate and fastening, such mode exists and is a great inconvenience for the user that is not suitable for leaving seat and thinking repeated multiple times adjusting.

Summary of the invention

The present invention is for avoiding the existing weak point of above-mentioned prior art, and a kind of easy adjusting wheel-chair is provided, and to realizing the function of directly carrying out height of seat and the adjusting of chair back front and back in the situation that not needing user to leave seat, makes user more comfortable.

The present invention is that technical solution problem adopts following technical scheme:

The present invention easily regulates the construction features of wheelchair to be:

The present invention easily regulates the construction features of wheelchair to be: angle of back-rest adjustment structure is set is: the chair back is sleeved on horizontal rotating shaft with bottom sleeves, and described sleeve can rotate on horizontal rotating shaft, in the periphery of described sleeve, is fixedly installed a pull bar towards front side; The sidepiece of seat board framework is fixedly installed side plate, and handrail is fixedly installed on side plate top; One arc-shaped slot is set on described side plate, the bearing pin that can slide along groove in groove is set in groove, described bearing pin is fixedly connected with pull bar at the axle head of side plate inner side, bearing pin is thread segment at the axle head in side plate outside, on described thread segment, threaded engagement has and bearing pin can be locked in to the clamp nut in groove, and the end of bearing pin is connected to be provided with the extension spring of pretightning force with being between the seat board framework of below; Periphery at described clamp nut is radially fixedly connected with a rocking handle;

The present invention easily regulates the construction features of wheelchair to be also: seat board height adjusting structure is set is: what be provided for supporting seat plate framework is to be in telescopic sleeve on each corner location of seat board base of frame, at the middle part of seat bottom frame, be fixedly installed a gripper shoe, in described gripper shoe, be fixedly installed drive motors, by bearings the screw mandrel that is vertical setting, be to be connected with the turning cylinder of described drive motors, and drive and rotate by drive motors, on described screw mandrel, being equipped with can be along the feed screw nut of screw mandrel lifting, periphery described feed screw nut connects firmly each rigid supporting rod, the other end correspondence of described each support bar connects firmly the top at sleeve.

Compared with the prior art, beneficial effect of the present invention is embodied in:

The present invention directly carries out the function regulating before and after height of seat and the chair back in the situation that not needing user to leave seat, makes user more comfortable.

Accompanying drawing explanation

Fig. 1 is back regulating mechanism schematic diagram of the present invention;

Fig. 2 is local enlarged diagram in Fig. 1;

Fig. 3 is seat lifting adjusting structure schematic diagram in the present invention.

Number in the figure: 11 seat boards; 12 chair back; 13 rocking handles; 14 extension springs; 15 grooves; 16 pull bars; 17 clamp nuts; 18 horizontal rotating shafts; 31 base for supporting; 32 drive motors; 33 gripper shoes; 34 bearings; 35 screw mandrels; 36 feed screw nuts; 37 sleeves; 38 support bars.

The specific embodiment

Referring to Fig. 1, Fig. 2, the present embodiment easily regulates angle of back-rest adjustment structure in wheelchair to be set to:

The chair back 12 is sleeved on horizontal rotating shaft 18 with bottom sleeves, and sleeve can rotate on horizontal rotating shaft 18, in the periphery of sleeve, is fixedly installed a pull bar 16 towards front side; The sidepiece of present plate framework is fixedly installed side plate, and handrail is fixedly installed on side plate top; One arc-shaped slot 15 is set on side plate, the bearing pin that can slide along groove in groove is set in groove 15, bearing pin is fixedly connected with pull bar 16 at the axle head of side plate inner side, bearing pin is thread segment at the axle head in side plate outside, on thread segment, threaded engagement has and bearing pin can be locked in to the clamp nut 17 in groove, and the end of bearing pin is connected to be provided with the extension spring 14 of pretightning force with being between the seat board framework of below; Periphery at clamp nut is radially fixedly connected with a rocking handle 13, and the rocking handle of lengthening can make the adjusting of clamp nut lighter.In this version, be with bearing pin, to be locked in the adjusting of the different angles of the diverse location place acquisition chair back in arc-shaped slot.

Referring to Fig. 3, in the present embodiment, the height adjusting structure of seat board 11 is set to: for supporting seat plate framework is to be on each corner location of seat board base of frame, to be arranged on the telescopic sleeve 37 on base for supporting 31, at the middle part of seat bottom frame, be fixedly installed a gripper shoe 33, in gripper shoe 33, be fixedly installed drive motors 32, by bearing 34, supported and the screw mandrel 35 that is vertical setting is to be connected with the turning cylinder of drive motors 32, and drive and rotate by drive motors 32, on screw mandrel 35, being equipped with can be along the feed screw nut 36 of screw mandrel lifting, periphery feed screw nut 36 connects firmly each rigid supporting rod 38, the other end correspondence of each support bar 38 connects firmly the top at sleeve 37.In this version, be with motor, to drive the height of screw mandrel and feed screw nut's fit structure motorized adjustment seat board.And realize self-locking by motor itself.

While needing adjusting back angle, first pull rocking handle 13, unclamp clamp nut 17, now the pretightning force due to extension spring 14 can make the chair back lean on forward under the pulling of pull bar 16; Keeping clamp nut is the state unclamping, and utilizes person back to layback, and the chair back is receded on desired position, and that clamp nut is obtained is again fastening for rotation crank immediately, completes the adjusting of chair back hypsokinesis angle.

While needing adjustment seat plate height, open drive motors 32, by drive motors rotarily drive screw mandrel 35, and by feed screw nut and rigid supporting rod jacking or decline seat board 11, the version of sleeve 37 can make lifting process more steady.

Claims

1. one kind easily regulates wheelchair, it is characterized in that: angle of back-rest adjustment structure is set is: the chair back (12) is sleeved on horizontal rotating shaft (18) with bottom sleeves, described sleeve can be in the upper rotation of horizontal rotating shaft (18), in the periphery of described sleeve, towards front side, be fixedly installed a pull bar (16); The sidepiece of seat board framework is fixedly installed side plate, and handrail is fixedly installed on side plate top; One arc-shaped slot (15) is set on described side plate, the bearing pin that in groove (15), setting can be slided along groove in groove, described bearing pin is fixedly connected with pull bar (16) at the axle head of side plate inner side, bearing pin is thread segment at the axle head in side plate outside, on described thread segment, threaded engagement has the clamp nut (17) that bearing pin can be locked in groove, the end of bearing pin be in below seat board framework between to be provided with the extension spring (14) of pretightning force, be connected; Periphery at described clamp nut is radially fixedly connected with a rocking handle (13);

Seat board height adjusting structure is set is: what be provided for supporting seat plate framework is to be in telescopic sleeve (37) on each corner location of seat board base of frame, at the middle part of seat bottom frame, be fixedly installed a gripper shoe (33), in described gripper shoe, be fixedly installed drive motors (32), the screw mandrel (35) that is supported and be vertical setting by bearing (34) is to be connected with the turning cylinder of described drive motors, and drive and rotate by drive motors, on described screw mandrel, being equipped with can be along the feed screw nut (36) of screw mandrel lifting, periphery described feed screw nut connects firmly each rigid supporting rod (38), the other end correspondence of described each support bar connects firmly the top in sleeve (37).