CN107951635A

CN107951635A - A kind of robot wheel chair car

Info

Publication number: CN107951635A
Application number: CN201711191424.0A
Authority: CN
Inventors: 赵越
Original assignee: Suzhou Zhi Dejin Network Polytron Technologies Inc
Current assignee: Suzhou Huangjia Gongchuang Precision Machinery Co ltd
Priority date: 2017-11-24
Filing date: 2017-11-24
Publication date: 2018-04-24
Anticipated expiration: 2037-11-24
Also published as: CN107951635B

Abstract

A kind of robot wheel chair car, including bottom plate, bottom plate top is equipped with middle plate, middle plate top is equipped with top plate, bottom plate, middle plate are identical with top plate three's size, are connected among bottom plate crown center and middle plate bottom and among middle plate crown center and top plate bottom by telescopic rod, are fixedly connected at the top of the lower end bottom plate of the telescopic rod of lower part, the lower end of superposed telescopic rod is articulated and connected with being fixedly connected at the top of middle plate positioned at the upper end of the telescopic rod of lower part with middle plate bottom.The present invention provides a kind of new robot wheel chair, when road surface and slope of the present invention Jing Guo out-of-flatness, by automatic adjustment the top plate moment can be made to keep horizontality, so as to ensure that the patient body taken ensures balance, improve the riding comfort of wheel-chair, patient is not easy to drop from wheel-chair, can improve the seating safety of patient.

Description

A kind of robot wheel chair car

Technical field

The invention belongs to wheelchair technical field, specifically a kind of robot wheel chair car.

Background technology

Wheelchair is the important tool of rehabilitation, it is not only the walking-replacing tool of limbs the disabled and people with mobility problems with wheelchair, Them are more importantly made to carry out physical exercise by means of wheelchair and participate in social activities.Common wheelchair is generally by wheelchair frame, car Wheel, brake gear and seat against four parts composition.Hand wheelchair increases manual setter on the basis of common wheelchair.Electric wheelchair exists On the basis of common wheelchair, increase electronics force aid system, alleviate the physical demands of user.Base of the intelligent wheel chair in electric wheelchair On plinth, mobile positioning, standing movement, remote-controlled movement and associated internet+assisted living are added.But traditional wheelchair exists Smooth-riding surface is difficult to ensure that the balance of patient body when walking, the patient to paralyse below some waists when taking wheelchair it is easy because Pavement roughness and body-sway motion, are difficult to control the body of oneself, the stability for taking wheelchair is difficult due to these patients To be controlled, if inclination angle is larger, patient easily from the wheelchair drops.

The content of the invention

The present invention provides a kind of robot wheel chair car, the defects of to solve in the prior art.

The present invention is achieved by the following technical programs：

A kind of robot wheel chair car, including bottom plate, bottom plate top are equipped with middle plate, and middle plate top is equipped with top plate, bottom plate, middle plate and top Plate three's size is identical, by stretching among bottom plate crown center and middle plate bottom centre and middle plate crown center and top plate bottom Contracting bar connects, and is fixedly connected at the top of the lower end bottom plate of the telescopic rod of lower part, the lower end of superposed telescopic rod and middle plate Top is fixedly connected, and is articulated and connected positioned at the upper end of the telescopic rod of lower part with middle plate bottom, the upper end of superposed telescopic rod It is articulated and connected with top plate bottom, four, bottom plate top edge is equipped with the first vertical hydraulic telescopic rod, the first hydraulically extensible The lower end of bar is articulated and connected with plate top surface, and the upper end of the first hydraulic telescopic rod is articulated and connected with middle plate bottom surface, middle plate top four A edge is equipped with the second vertical hydraulic telescopic rod, and the lower end of the second hydraulic telescopic rod is articulated and connected with middle plate top surface, the The upper end of two hydraulic telescopic rods is articulated and connected with top board undersurface, and balance box and power is fixedly mounted with middle plate lower part in top plate lower part Box, superposed balance box be left and right directions, and the balance box positioned at lower part is anteroposterior direction, two length directions for balancing box It is mutually perpendicular to, vertical first piston pipe is fixedly mounted at both ends inside balance box, the first work is equipped with first piston pipe Stick harness, the lower end sidepiece of first piston pipe open up first through hole, and first of two first piston pipes in same balance box is logical Be fixedly connected between hole by transverse tube, the cavity in two first piston pipes in same balance box below first piston column with Water is full of in corresponding transverse tube, first piston tube side part opens up strip hole by place near to the upper end, and first piston tube side part is equipped with L Bar, the lower end of L bars are fixedly connected through corresponding strip hole with corresponding first piston column sidepiece, wherein at a L bars upper end Equipped with the first touching switch, the second touching switch, the first touching switch and the second touching switch are equipped with the upper end of another L bar It is fixedly mounted on corresponding balance box inner top, the length directions of two power boxes is left and right directions, left side in power box Horizontal second piston pipe is fixedly mounted, is equipped with second piston column in second piston pipe, second piston column opens up among right side Threaded hole, threaded hole is interior to coordinate installation screw rod, and the left end of screw rod is flexibly connected with corresponding second piston pipe internal bearings, and second Open up the second through hole among piston tube right side, the right end of screw rod is located at corresponding second piston after passing through corresponding second through hole The outside of pipe, screw rod are connected with corresponding second through hole by sealing bearing, and horizontal move is fixedly mounted in power box inner right side Force motor, the first touching switch and the second touching switch are connected with corresponding power motor, the output shaft of power motor with it is right The right end for the screw rod answered is fixedly connected, and second piston inside pipe wall opens up strip grooves, and inserted block is fixedly mounted in second piston column sidepiece, inserts Block is inserted into corresponding strip grooves, and two close end is leaned in inserted block and corresponding strip grooves close contacting fit, second piston pipe lower part Place opens up third through-hole, and vertical tube is fixedly mounted in third through-hole outer end, and closing is in vertical tube lower end, the position between middle plate and top plate Vertical tube in left side connect with the cylinder body pipe of two second hydraulic telescopic rods positioned at left side by the first hydraulic oil pipe, middle plate and The cylinder body pipe of two piece second hydraulic telescopic rods of the vertical tube positioned at right side with being located at right side between top plate passes through the second hydraulic oil The cylinder body pipe of pipe connection, the vertical tube positioned at left side between bottom plate and middle plate and two first hydraulic telescopic rods positioned at rear side leads to The connection of the 3rd hydraulic oil pipe is crossed, the vertical tube positioned at right side between bottom plate and middle plate and two first hydraulically extensibles positioned at front side The cylinder body pipe of bar is connected by the 4th hydraulic oil pipe, and the front and rear sides of bottom plate left end are respectively mounted deflecting roller, bottom plate right end it is front and rear Both sides are respectively mounted power wheel, and vertical backrest plate is fixedly mounted in top plate top at right end.

A kind of robot wheel chair car as described above, is fixed between the bottom plate and the end of top plate by elastical cloth Connection.

A kind of robot wheel chair car as described above, the top plate top surface on backup plate left surface with being fixedly mounted sponge Cushion.

A kind of robot wheel chair car as described above, handrail is fixedly mounted in the backrest plate rear and front end.

A kind of robot wheel chair car as described above, backup plate upper end right side are fixedly mounted close to two edges Push rod.

It is an advantage of the invention that：The present invention provides a kind of new robot wheel chair, road surface of the present invention Jing Guo out-of-flatness During with slope, by automatic adjustment the top plate moment can be made to keep horizontality, so that the patient body for ensureing to take ensures to put down Weighing apparatus, improves the riding comfort of wheel-chair, and patient is not easy to drop from wheel-chair, can improve the seating safety of patient.Together Cavity in one balance box in two first piston pipes below first piston column is imitated with the water in corresponding transverse tube in linker Fruit effect is lower can to keep the water level in two first piston pipes identical, and the present invention runs into upward slope when advancing, superposed Balance box tilts therewith, and the first piston column on right side moves up in superposed balance box, which drives connects with it The L bars connect move up, which contacts with the second touching switch, and the power motor on the second touching switch control top rotates, and moves Force motor drives corresponding screw rod to rotate, and the screw rod with the thread fitting of corresponding second piston column by driving the second piston Column moves right, and under hydraulic action, two second hydraulic telescopic rods for being now placed in right side are stretched out, while positioned at the of left side Two hydraulic telescopic rods are shunk, and top plate right end is elevated, when top plate returns to horizontality, the second touching switch and corresponding L Bar separates, and the power motor stalling on top, when running into descending, the first piston column of upper left-hand moves up, and the first of top touches Touch switch to contact with corresponding L bars, the power motor reversion on top, positioned at two, left side, the second hydraulic telescopic rod is stretched out, and works as top During plate level, power motor stalling；When wheel-chair, which advances, lateral inclination occurs, the balance box positioned at lower part tilts therewith, It is now placed in the power motor work of the touching switch control lower part of relatively low side, the screw rod that the power motor of lower part passes through lower part The second piston column movement of lower part is driven, stretches the first hydraulic telescopic rod positioned at the relatively low side in bottom plate top by hydraulic drive Go out, while the first hydraulic telescopic rod positioned at higher side is shunk, plate reaches horizontality in can adjusting, and middle plate is responsible for this hair The adjusting of lateral tilt during bright traveling, top plate are responsible for anteroposterior direction inclined adjusting when the present invention advances, pass through middle plate and top plate Cooperative cooperating, when different road conditions are advanced, top plate can be automatically kept as horizontal state.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with Other attached drawings are obtained according to these attached drawings.

Fig. 1 is the structure diagram of the present invention；Fig. 2 is the partial enlarged view of I of Fig. 1；Fig. 3 is the office of II of Fig. 1 Portion's enlarged drawing.

Embodiment

To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art All other embodiments obtained without creative efforts, belong to the scope of protection of the invention.

A kind of robot wheel chair car, as shown in the figure, including bottom plate 1,1 top of bottom plate is equipped with middle plate 2, and middle 2 top of plate is equipped with Top plate 3, bottom plate 1, middle plate 2 are identical with 3 three's size of top plate, among 1 crown center of bottom plate and 2 bottom of the middle plate and top of middle plate 2 Centre among 3 bottom of top plate by telescopic rod 4 with being connected, positioned at the fixed company in the top of lower end bottom plate 1 of the telescopic rod 4 of lower part Connect, the lower end of superposed telescopic rod 4 is fixedly connected with the middle top of plate 2, positioned at the upper end of the telescopic rod 4 of lower part and middle plate 2 Bottom is articulated and connected, and upper end and 3 bottom of top plate of superposed telescopic rod 4 are articulated and connected, and four, 1 top of bottom plate edge is equal Equipped with the first vertical hydraulic telescopic rod 5, lower end and 1 top surface of bottom plate of the first hydraulic telescopic rod 5 are articulated and connected, and the first hydraulic pressure is stretched The upper end of contracting bar 5 is articulated and connected with middle 2 bottom surface of plate, and middle four, 2 top of plate edge is equipped with the second vertical hydraulic telescopic rod 6, the lower end of the second hydraulic telescopic rod 6 is articulated and connected with middle 2 top surface of plate, and upper end and 3 bottom surface of top plate of the second hydraulic telescopic rod 6 are cut with scissors Connect in succession, balance box 7 and power box 8 is fixedly mounted with middle 2 lower part of plate in 3 lower part of top plate, and superposed balance box 7 is left and right Direction, the balance box 7 positioned at lower part are anteroposterior direction, and the length direction of two balance boxes 7 is mutually perpendicular to, 7 inside two of balance box Vertical first piston pipe 9 is fixedly mounted at end, first piston column 10 is equipped with first piston pipe 9, first piston pipe 9 Lower end sidepiece opens up first through hole 11, passes through horizontal stroke between the same first through hole 11 for balancing two first piston pipes 9 in box 7 Pipe 12 is fixedly connected, in two first piston pipes 9 in same balance box 7 cavity of the lower section of first piston column 10 with it is corresponding Water is full of in transverse tube 12,9 sidepiece of first piston pipe opens up strip hole 13 by place near to the upper end, and 9 sidepiece of first piston pipe is equipped with L bars The lower end of 14, L bars 14 is fixedly connected through corresponding strip hole 13 with corresponding 10 sidepiece of first piston column, wherein a L bar The first touching switch 15 is equipped with 14 upper ends, the second touching switch 16, the first touching switch are equipped with the upper end of another L bar 14 15 are fixedly mounted on corresponding balance 7 inner top of box with the second touching switch 16, and the length direction of two power boxes 8 is a left side Right direction, the interior left side of power box 8 are fixedly mounted horizontal second piston pipe 17, second piston column are equipped with second piston pipe 17 18, threaded hole 19 is opened up among 18 right side of second piston column, coordinates installation screw rod 20 in threaded hole 19, the left end of screw rod 20 with Corresponding 17 internal bearings of second piston pipe are flexibly connected, and the second through hole 21, screw rod are opened up among 17 right side of second piston pipe 20 right end pass through corresponding second through hole 21 after be located at corresponding second piston pipe 17 outside, screw rod 20 and corresponding second Through hole 21 is connected by sealing bearing, and horizontal power motor 22, the first touching switch 15 is fixedly mounted in 8 inner right side of power box And second touching switch 16 be connected with corresponding power motor 22, the right side of the output shaft of power motor 22 and corresponding screw rod 20 End is fixedly connected, and 17 inner wall of second piston pipe opens up strip grooves 25, and inserted block 26, inserted block 26 is fixedly mounted in 18 sidepiece of second piston column It is inserted into corresponding strip grooves 25, inserted block 26 is leaned on corresponding 25 close contacting fit of strip grooves, 17 lower part of second piston pipe Third through-hole 23 is opened up at two close end, vertical tube 24 is fixedly mounted in 23 outer end of third through-hole, and 24 lower end of vertical tube is closes, middle plate The cylinder body pipe of two piece second hydraulic telescopic rods 6 of the vertical tube 24 positioned at left side with being located at left side between 2 and top plate 3 passes through first Hydraulic oil pipe 27 connects, the vertical tube 24 positioned at right side between middle plate 2 and top plate 3 and two second hydraulically extensibles positioned at right side The cylinder body pipe of bar 6 is connected by the second hydraulic oil pipe 28, vertical tube 24 positioned at left side between bottom plate 1 and middle plate 2 and after being located at The cylinder body pipe of two first hydraulic telescopic rods 5 of side is connected by the 3rd hydraulic oil pipe 29, being located between bottom plate 1 and middle plate 2 The vertical tube 24 on right side is connected with the cylinder body pipe of two first hydraulic telescopic rods 5 positioned at front side by the 4th hydraulic oil pipe 30, bottom The front and rear sides of 1 left end of plate are respectively mounted deflecting roller 31, and deflecting roller is the ripe prior art, is not being repeated herein, 1 right end of bottom plate Front and rear sides are respectively mounted power wheel 32, and power wheel is the ripe prior art, is not being repeated herein, 1 top of top plate is at right end Vertical backrest plate 33 is fixedly mounted.The present invention provides a kind of new robot wheel chair, road surface of the present invention Jing Guo out-of-flatness During with slope, by automatic adjustment 3 moment of top plate can be made to keep horizontality, so that the patient body for ensureing to take ensures to put down Weighing apparatus, improves the riding comfort of wheel-chair, and patient is not easy to drop from wheel-chair, can improve the seating safety of patient.Together The cavity of the lower section of first piston column 10 is connecting with the water in corresponding transverse tube 12 in two first piston pipes 9 in one balance box 7 Logical device effect effect is lower can to keep the water level in two first piston pipes 9 identical, and the present invention runs into upward slope when advancing, and is located at The balance box 7 on top tilts therewith, and the first piston column 10 on right side moves up in superposed balance box 7, the first piston column 10 drive connected L bars 14 to move up, which contacts with the second touching switch 16, and the second touching switch 16 controls The power motor 22 on top rotates, and power motor 22 drives corresponding screw rod 20 to rotate, and the screw rod 20 is by with corresponding second The thread fitting of piston boit 18 drives the second piston column 18 to move right, and under hydraulic action, is now placed in two of right side Second hydraulic telescopic rod 6 is stretched out, while is shunk positioned at second hydraulic telescopic rod 6 in left side, and 3 right end of top plate is by too high, when top plate 3 When returning to horizontality, the second touching switch 16 is separated with corresponding L bars 14, and the power motor 22 on top stalls, when running into During descending, the first piston column 10 of upper left-hand moves up, and first touching switch 15 on top is contacted with corresponding L bars 14, top Power motor 22 invert, positioned at two, left side, the second hydraulic telescopic rod 6 is stretched out, and when top plate 3 is horizontal, power motor 22 stops Turn；When wheel-chair, which advances, lateral inclination occurs, the balance box 7 positioned at lower part tilts therewith, is now placed in relatively low side The power motor 22 of touching switch control lower part works, and the screw rod 20 that the power motor 22 of lower part passes through lower part drives the of lower part Two piston boits 18 move, and stretch out the first hydraulic telescopic rod 5 positioned at the relatively low side in 1 top of bottom plate by hydraulic drive, at the same time The first hydraulic telescopic rod 5 positioned at higher side is shunk, and plate 2 reaches horizontality in can adjusting, and middle plate 2 is responsible for row of the present invention Into when lateral tilt adjusting, top plate 3 is responsible for anteroposterior direction inclined adjusting when the present invention advances, passes through middle plate 2 and top plate 3 Cooperative cooperating, when different road conditions are advanced, top plate 3 can be automatically kept as horizontal state.

Specifically, it is fixedly connected between the bottom plate 1 described in the present embodiment and the end of top plate 3 by elastical cloth 34. Elastical cloth 34 can shelter from the parts between bottom plate 1 and top plate 3, avoid the parts of inside from falling upper dust, make this hair It is bright more beautiful.

Specifically, 3 top surface of top plate described in the present embodiment on 33 left surface of backup plate with being fixedly mounted sponge cushion 35.Should Design can improve comfort when user takes the present invention.

Further, handrail 36 is fixedly mounted in 33 rear and front end of backrest plate described in the present embodiment.The design can carry High user takes the comfort during present invention.

Further, push rod is fixedly mounted close to two edges on the right side of 33 upper end of backup plate described in the present embodiment 37.The design facilitates other people to promote the present invention to be moved, when the situation that the present invention runs into not enough power supply is to facilitate the parent of patient The promotions such as people are advanced.

Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic； And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and Scope.

Claims

A kind of 1. robot wheel chair car, it is characterised in that：Including bottom plate（1）, bottom plate（1）Top is equipped with middle plate（2）, middle plate（2） Top is equipped with top plate（3）, bottom plate（1）, middle plate（2）With top plate（3）Three's size is identical, bottom plate（1）Crown center and middle plate（2） Bottom centre and middle plate（2）Crown center and top plate（3）Pass through telescopic rod among bottom（4）Connection, positioned at the flexible of lower part Bar（4）Lower end bottom plate（1）Top is fixedly connected, superposed telescopic rod（4）Lower end and middle plate（2）Top, which is fixed, to be connected Connect, the telescopic rod positioned at lower part（4）Upper end and middle plate（2）Bottom is articulated and connected, superposed telescopic rod（4）Upper end with Top plate（3）Bottom is articulated and connected, bottom plate（1）Four, top edge is equipped with the first vertical hydraulic telescopic rod（5）, the first liquid Press telescopic rod（5）Lower end and bottom plate（1）Top surface is articulated and connected, the first hydraulic telescopic rod（5）Upper end and middle plate（2）Cut with scissors bottom surface Connect in succession, middle plate（2）Four, top edge is equipped with the second vertical hydraulic telescopic rod（6）, the second hydraulic telescopic rod（6）'s Lower end and middle plate（2）Top surface is articulated and connected, the second hydraulic telescopic rod（6）Upper end and top plate（3）Bottom surface is articulated and connected, top plate （3）Lower part and middle plate（2）Balance box is fixedly mounted in lower part（7）With power box（8）, superposed balance box（7）For left and right Direction, the balance box positioned at lower part（7）For anteroposterior direction, two balance boxes（7）Length direction be mutually perpendicular to, balance box（7） Vertical first piston pipe is fixedly mounted at internal both ends（9）, first piston pipe（9）Inside it is equipped with first piston column（10）, First piston pipe（9）Lower end sidepiece open up first through hole（11）, same balance box（7）Two interior first piston pipes（9） First through hole（11）Between pass through transverse tube（12）It is fixedly connected, same balance box（7）Two interior first piston pipes（9）It is interior First piston column（10）The cavity of lower section and corresponding transverse tube（12）It is interior to be full of water, first piston pipe（9）Sidepiece leans on place near to the upper end Open up strip hole（13）, first piston pipe（9）Sidepiece is equipped with L bars（14）, L bars（14）Lower end pass through corresponding strip hole （13）With corresponding first piston column（10）Sidepiece is fixedly connected, wherein a L bar（14）The first touching switch is equipped with upper end （15）, another L bar（14）Upper end at be equipped with the second touching switch（16）, the first touching switch（15）With the second touching switch （16）It is fixedly mounted on corresponding balance box（7）Inner top, two power boxes（8）Length direction be left and right directions, move Power box（8）Horizontal second piston pipe is fixedly mounted in interior left side（17）, second piston pipe（17）It is interior to be equipped with second piston column（18）, Second piston column（18）Threaded hole is opened up among right side（19）, threaded hole（19）It is interior to coordinate installation screw rod（20）, screw rod（20） Left end and corresponding second piston pipe（17）Internal bearings are flexibly connected, second piston pipe（17）Second is opened up among right side Through hole（21）, screw rod（20）Right end pass through corresponding second through hole（21）It is located at corresponding second piston pipe afterwards（17）It is outer Portion, screw rod（20）With corresponding second through hole（21）Connected by sealing bearing, power box（8）Inner right side is fixedly mounted laterally Power motor（22）, the first touching switch（15）And second touching switch（16）With corresponding power motor（22）It is connected, Power motor（22）Output shaft and corresponding screw rod（20）Right end be fixedly connected, second piston pipe（17）Inner wall opens up strip Groove（25）, second piston column（18）Inserted block is fixedly mounted in sidepiece（26）, inserted block（26）It is inserted into corresponding strip grooves（25）It is interior, insert Block（26）With corresponding strip grooves（25）Close contacting fit, second piston pipe（17）Lower part at two close end by opening up threeway Hole（23）, third through-hole（23）Vertical tube is fixedly mounted in outer end（24）, vertical tube（24）Lower end is closes, middle plate（2）With top plate（3） Between the vertical tube positioned at left side（24）With two second hydraulic telescopic rods positioned at left side（6）Cylinder body pipe pass through the first hydraulic pressure Oil pipe（27）Connection, middle plate（2）With top plate（3）Between the vertical tube positioned at right side（24）With two second hydraulic pressure positioned at right side Telescopic rod（6）Cylinder body pipe pass through the second hydraulic oil pipe（28）Connection, bottom plate（1）With middle plate（2）Between positioned at the perpendicular of left side Pipe（24）With two first hydraulic telescopic rods positioned at rear side（5）Cylinder body pipe pass through the 3rd hydraulic oil pipe（29）Connection, bottom plate （1）With middle plate（2）Between the vertical tube positioned at right side（24）With two first hydraulic telescopic rods positioned at front side（5）Cylinder body pipe Pass through the 4th hydraulic oil pipe（30）Connection, bottom plate（1）The front and rear sides of left end are respectively mounted deflecting roller（31）（Deflecting roller is ripe existing There is technology, do not repeating herein）, bottom plate（1）The front and rear sides of right end are respectively mounted power wheel（32）（Power wheel is ripe existing skill Art, is not repeating herein）, top plate（1）Vertical backrest plate is fixedly mounted in top at right end（33）.
A kind of 2. robot wheel chair car according to claim 1, it is characterised in that：The bottom plate（1）With top plate（3）'s Pass through elastical cloth between end（34）It is fixedly connected.
A kind of 3. robot wheel chair car according to claim 1, it is characterised in that：The top plate（3）Top surface and backup plate （33）Sponge cushion is fixedly mounted on left surface（35）.
A kind of 4. robot wheel chair car according to claim 1, it is characterised in that：The backrest plate（33）Rear and front end Handrail is fixedly mounted（36）.
A kind of 5. robot wheel chair car according to claim 1, it is characterised in that：The backup plate（33）Leaned on the right side of upper end Push rod is fixedly mounted in nearly two edges（37）.