CN2191653Y

CN2191653Y - multifunctional electric wheelchair

Info

Publication number: CN2191653Y
Application number: CN 94213054
Authority: CN
Inventors: 王锰墩
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-05-31
Filing date: 1994-05-31
Publication date: 1995-03-15
Anticipated expiration: 2004-05-31

Abstract

The utility model relates to a multifunctional electric wheelchair. A chair-typed seat body is a zoom type seat body, which is hinged by multisection and can alter the angle of a seat board. The lower part of the seat board of the seat body is provided with an L-shaped support rod which is constituted by symmetrical rod bodies. One end of the L-shaped support rod is hinged with the rear part of a backup board of the seat body. The other end of the L-shaped support rod is hinged with the upper part of a cardinal shelf body. Both sides of the intermediate back part of the seat board are respectively hinged with screw adjustment rods. The screw adjustment rods form a slope shape, which are sheathed in a transmission box. A worm gear and a transverse worm rod meshed with the worm gear are arranged in the transmission box. The transverse worm rod is movably arranged in a bearing seat of a seat shelf. When the worm rod is driven by a motor, the worm rod drives the worm gear and the screw adjustment rods to rotate and elongate or retract. Thus the seat board is jacked up or pulled back to obtain the goal of altering sitting position.

Description

multifunctional electric wheelchair

This utility model relates to the public tool of a kind of non-motorized transport, particularly a kind of multifunctional electric wheelchair that supplies the people with disability to take.

Supply the wheelchair of people with disability or inpatient seat at present, general all constitute by support body and the seat body that is fixed in support body top, the front portion of the bottom of support body is provided with trundle, and the rear portion is provided with bull wheel, during walking, auxiliary wheel, auxiliary wheel that hands for disabled persons rotates the bull wheel both sides then together rotate with bull wheel, and disabled wheelchair can be walked.Also have and adopt power-actuatedly, promptly drive reducing gear and rotate, and then drive bull wheel and rotate, use for people with disability's walk help of climbing by power source.This class wheelchair exists following defective and deficiency,

1, can only play the walk help effect, has only a kind of fixed seat mode, because the seat body of existing wheelchair is fixedlyed connected with support body, it sits body is exactly a fixed chair, can only be sitting in the inside with a kind of posture so take the people, goes down for a long time, certainly leading to lower part of the body load increases the weight of, blood circulation is not smooth, is unfavorable for the suitable activity in whole body joint and the rehabilitation of sick limb, very easily causes the anamorphosis of health.

2, because of the people with disability or the inpatient rehabilitation person can not always have the nursing staff to nurse all the time and some occupant wants own some self-care activitieses in power of work or some other simple work, fetch thing such as standing up or face upward by having a rest, yet, because the posture of existing Wheelchair can't be adjusted, thereby can't satisfy these actual needs, cause very big inconvenience to the patient, also increased the nursing difficulty.

3,, because its buttocks often can't freely move, sit for a long time at sky Re Shiyin that pressure is very easy to be caused decubital ulcer to fester and delay rehabilitation, and may bring out other disease for lower limb disability or convalescent patient.

4, be not easy to the occupant when changing stance by sitting posture with the walk help of standing of turning because, from the sitting posture to the stance between wheelchair can't the conversion attitude, thereby make the occupant can't carry out motion transition, very easily can't hold crutch because of the acid of legs and feet fiber crops and stand.

The purpose of this utility model just is to overcome the above-mentioned shortcoming and defect of existing in prior technology, and provides a kind of body of sitting can change inclination angle, safe, practical multifunction electric driving wheel wheelchair.

The purpose of this utility model is to realize by following technical scheme: the seat body of chair shape is the adjustable seat body of hinged the changed seat angle that forms of multistage, the seat bottom of sitting body is provided with a L shaped strut that is made of the symmetrical body of rod, one end of L shaped strut is hinged with the backup plate rear portion of sitting body, and the other end and body frame body top are hinged, the postmedian both sides of seat then are hinged with the adjustable diameter and screw adjusting bar respectively, the adjustable diameter and screw adjusting bar then is skewed and is sleeved in the gear box, the horizontal worm screw that is provided with worm gear in the gear box and is meshed with worm gear, laterally the worm screw activity is housed in the seat bearing block, when the motor-driven worm screw is rotated, worm screw then drive worm gear and with the rotation of the adjustable diameter and screw adjusting bar of worm gear spiral fit and elongation or retraction, make seat by jack-up or retract, to reach the purpose that changes sitting posture.

Therefore: remarkable result of the present utility model is:

1, being hinged of the seat body that is hinged together of adjustable diameter and screw adjusting bar and multistage not only can make and sit structural reform and become a support shape, reaches the purpose that changes sitting posture, and makes and sit body and can stop to regulate under arbitrary state or change and be supported by mode, makes and takes advantage of the author can change posture as required.

2, sitting posture, standing position, face upward by posture and can change easily arbitrarily, not only brought convenience and comfort to the occupant, and, reduced the nursing difficulty, help promoting disease disease personnel's rehabilitation.

3, the convenient of sitting posture regulated, and disease disease personnel can be adjusted as required take posture, thereby the steady safe transition between the posture taken in acquisition.

Concrete structure of the present utility model is realized by the following examples and accompanying drawing thereof.

Fig. 1 is a structural perspective of the present utility model.

Fig. 2 is an adjustable diameter and screw adjusting bar and the structure enlarged drawing of sitting body mobile jib connecting portion among Fig. 1.

Fig. 3 is the structure enlarged drawing of B portion among Fig. 1.

Fig. 4 is the internal structure enlarged drawing at gear box position among Fig. 2.

Fig. 5 is that the A of Fig. 2 is to view.

Fig. 6 is that of the present utility model taking advantage of made view one.

Fig. 7 is that of the present utility model taking advantage of made view two.

Fig. 8 is that of the present utility model taking advantage of made view three.

Below in conjunction with accompanying drawing 1-8 concrete structure of the present utility model is described in detail:

This utility model has a body frame body 4 that is provided with big trundle, be provided with the seat body 5 of chair shape on body frame body 4 tops, sitting body 5 is by backup plate 51, seat 52 and balustrade panel 53 are connected to form, sit body 5 rear lowers and be provided with driving mechanism 1, the preceding bottom of sitting body 5 is provided with the treadle 54 that the antimere front portion with seat 52 both sides is hinged, it is characterized in that: be hinged between the seat 52 of the seat body 5 of chair shape and the backup plate 51, the upper curved section upper end of backup plate 51 rear portions and L shaped symmetrical strut 60 is hinged, L shaped strut 60 parallels with seat 52 and is positioned at seat 52 belows, the vertical rod of visiting on the front end of L shaped strut 60 and the body frame body 4 411 is hinged, pole 501 protruding under the leading portion of two symmetrical sides of seat 52 is hinged with body frame body 4 anterior upsides, activity is coated with the horizontal worm screw 13 of driving mechanism 1 in the rear axle bearing 12 on body frame body 4, laterally worm screw 13 is turned by motor M, in the gear box 2 of horizontal two outer sections of worm screw 13, be provided with the worm gear 17 that is meshed with horizontal worm screw 13, what screw mutually with worm gear 17 internal thread holes 19 is two skewed adjustable diameter and screw adjusting bars 11, and side rod 50 middle parts of the upper end of adjustable diameter and screw adjusting bar 11 and seat 52 both sides are hinged.Referring to Fig. 1 to Fig. 4

Architectural feature of the present utility model also is:

The seat 51 rear portion hypomeres of the seat body 5 of chair shape have the protruding horizontal feeler lever 511 in two backs, the rear end of horizontal feeler lever 511 is hinged mutually with the upper end of the upper curved section 601 of L shaped strut 60, the preceding spy section of L shaped strut 60 is parallel-laid into an outstanding shape separately with the side rod 50 of seat 52 left and right sides, the upper end of the front end of the preceding spy section of strut 60 and the vertical rod 411 of body frame body 4 top leading portion epireliefs is hinged, the preceding pars infrasegmentalis of side rod 50 vertically is fixed with protruding pole 501 twice, the lower end of pole 501 and body frame body 4 top front ends are hinged, be hinged with a connecting rod 56 between two sagging treadle 54 hypomere rear sides and body frame body 4 antero-lateral rods 57 middle parts, motor M in the driving mechanism 1 is paid 141 by deceleration transmission and is driven horizontal worm screw 13, gear box 2 contains the adjustable diameter and screw adjusting bar 11 of horizontal worm screw 13 and inclination within it, and protective case 14 is again with gear box 2, laterally worm screw 13 and motor M contain within it.Referring to Fig. 1, Fig. 2, Fig. 4 and Fig. 6

Each pin joint all is articulated two adjacent rod member activities by bearing pin 3, and the second half section of two symmetrical side rods 50 of adjustable diameter and screw adjusting bar 13 upper ends and seat 52 is hinged, and the lower end of adjustable diameter and screw adjusting bar 13 is freely to visit stretches shape and turn rising down or retraction at worm gear 117.Referring to Fig. 4 and Fig. 5

The point of A bottom when the pedal of visiting before the hypomere front side of sagging treadle 54 is connected with 55, the exercise end of sagging treadle 54 is lower than the minimum point B that the wheel of its rear side trundle is justified.Referring to Fig. 7 and Fig. 8

Operation principle of the present utility model such as Fig. 6 Figure 6 shows that normal sitting position to shown in Figure 8, and this moment, L strut 60 all was parallel level with seat 52, backup plate 51 and seat 52 rectangular seat shapes.

When need change posture, then pass through the starting switch of hands touch-control motor M, motor M is rotated and pay 141 and drive horizontal worm screw 13 rotations by transmission, cause and revolve on the adjustable diameter and screw adjusting bar 13 and with seat 52 jack-up gradually, as shown in Figure 7, its angle of inclination can be by button control, Figure 8 shows that the state that puts in place entirely, at this moment, the people can uprightly fetch article or stand, and also can hold and turn down ground.As need sit back wheelchair again the time, then stand earlier, press invert button then, make to regulate the worm screw retraction and seat 52 retracted to get final product.In the state shown in Figure 8, because of treadle 54 length are slightly larger than steamboat and ground contacting points position B, so the time be that A point and trailing wheel land, steamboat lifts slightly, so wheelchair can not move.

Claims

1, multifunctional electric wheelchair, the one body frame body (4) that is provided with big trundle is arranged, be provided with the seat body (5) of chair shape on body frame body (4) top, sitting body (5) is by backup plate (51), seat (52) and balustrade panel (53) are connected to form, sit body (5) rear lower and be provided with driving mechanism (1), the preceding bottom of sitting body (5) is provided with the treadle (54) that the antimere front portion with seat (52) both sides is hinged, it is characterized in that: be hinged between the seat (52) of the seat body (5) of chair shape and the backup plate (51), the upper curved section upper end of backup plate (51) rear portion and L shaped symmetrical strut (60) is hinged, L shaped strut (60) parallels with seat (52) and is positioned at below the seat (52), the front end of L shaped strut (60) and body frame body (4) are gone up the vertical rod of visiting (411) and are hinged, pole (501) protruding under the leading portion of two symmetrical sides of seat (52) is hinged with the anterior upside of body frame body (4), activity is coated with the horizontal worm screw (13) of driving mechanism (1) in the rear axle bearing (12) on body frame body (4), laterally worm screw (13) is turned by motor M, in the gear box (2) of horizontal two outer sections of worm screw (13), be provided with the worm gear (17) that is meshed with horizontal worm screw (13), what screw mutually with worm gear (17) internal thread hole (19) is two skewed adjustable diameter and screw adjusting bars (11), and side rod (50) middle part of the upper end of adjustable diameter and screw adjusting bar (11) and seat (52) both sides is hinged.

2, by the described multifunctional electric wheelchair of claim 1, it is characterized in that: seat (51) the rear portion hypomere of the seat body (5) of chair shape has the protruding horizontal feeler lever (511) in two backs, the rear end of horizontal feeler lever (511) is hinged mutually with the upper end of the upper curved section (601) of L shaped strut (60), the preceding spy section of L shaped strut (60) is parallel-laid into an outstanding shape separately with the side rod (50) of seat (52) left and right sides, the upper end of the front end of the preceding spy section of strut (60) and the vertical rod (411) of body frame body (4) top leading portion epirelief is hinged, the preceding pars infrasegmentalis of side rod (50) vertically is fixed with twice protruding poles (501), the lower end of pole (501) and body frame body (4) top front end are hinged, be hinged with a connecting rod (56) between two sagging treadle (54) hypomere rear sides and body frame body (4) antero-lateral rod (57) middle part, motor M in the driving mechanism (1) is paid (141) by deceleration transmission and is driven horizontal worm screw (13), gear box (2) contains the adjustable diameter and screw adjusting bar (11) of horizontal worm screw (13) and inclination within it, and protective case (14) is again with gear box (2), laterally worm screw (13) and motor M contain within it.

3, by claim 1 or 2 described multifunctional electric wheelchairs, it is characterized in that: each pin joint all is articulated two adjacent rod member activities by bearing pin (3), adjustable diameter and screw adjusting bar (13) upper end was hinged with the second half section of two symmetrical side rods (50) of seat (52), and the lower end of adjustable diameter and screw adjusting bar (13) is freely to visit stretches shape and turn rising down or retraction at worm gear (117).

4, by claim 1 or 2 described multifunctional electric wheelchairs, it is characterized in that: the point of A bottom the when pedal of visiting before the hypomere front side of sagging treadle (54) is connected with (55), the exercise end of sagging treadle (54) is lower than the minimum point B that the wheel of its rear side trundle is justified.