CN110141432B

CN110141432B - Auxiliary wheelchair

Info

Publication number: CN110141432B
Application number: CN201910446351.8A
Authority: CN
Inventors: 张旺; 陶平; 侯宇; 梁少强; 黄磊
Original assignee: Wuhan University of Science and Engineering WUSE
Current assignee: Wuhan University of Science and Engineering WUSE
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-08-04
Anticipated expiration: 2039-05-27
Also published as: CN110141432A

Abstract

The invention relates to an auxiliary wheelchair, which particularly comprises a combined base, a seat plate assembly, a backrest assembly, a leg backup plate assembly, a first driving assembly and a second driving assembly, wherein the seat plate assembly is horizontally arranged on the combined base along the front-back direction, the backrest assembly is arranged at the rear end of the seat plate assembly in a front-back overturning manner, the leg backup plate assembly is arranged at the front end of the seat plate assembly in a front-back overturning manner, the first driving assembly and the second driving assembly are respectively arranged on one side of the seat plate assembly, the first driving assembly is in transmission connection with the backrest assembly and can drive the backrest assembly to overturn back and forth, and the second driving assembly is in transmission connection with the leg backup plate assembly and can drive the leg backup plate assembly to overturn back and forth. The auxiliary wheelchair can assist a maintainer to carry old people or disabled people to get on and off the bed, and one person can assist the maintainer to carry the old people or disabled people to get on and off the bed, so that the labor intensity of the maintainer is reduced.

Description

Auxiliary wheelchair

Technical Field

The invention belongs to the technical field of wheelchairs, and relates to an auxiliary wheelchair.

Background

With the development and progress of social civilization, the quality of life of vulnerable groups such as the old and the disabled is guaranteed and improved, and the vulnerable groups are more and more generally concerned by people in all social circles.

A great deal of research shows that the mobility of the old and the disabled is effectively enhanced, so that the daily life of the old and the disabled is convenient, and the old and the disabled have profound influence on the mental health, self evaluation and mental state of the old and the disabled.

However, the existing wheelchair is only a tool for the old or the disabled to ride instead of walk, the old or the disabled still needs the assistance of other people when going to bed and cannot finish the assistance independently, and the old or the disabled still needs at least two people to assist in carrying to get on the bed or get off the bed when going to bed and is inconvenient to use.

Disclosure of Invention

In order to solve the technical problems, the invention provides an auxiliary wheelchair capable of assisting the old or the disabled to get on or off the bed, which adopts the technical scheme that:

the utility model provides an auxiliary wheelchair, includes combination base, bedplate subassembly, back subassembly, leg backup plate subassembly, first drive assembly and second drive assembly, the bedplate subassembly is installed along the fore-and-aft direction horizontal installation on the combination base, install with overturning around the back subassembly the rear end of bedplate subassembly, the installation that can overturn around the leg backup plate subassembly is in the front end of bedplate subassembly, first drive assembly with the second drive assembly is installed respectively one side of bedplate subassembly, first drive assembly with the transmission of back subassembly is connected, and can drive overturn around the back subassembly, the second drive assembly with the transmission of leg backup plate subassembly is connected, and can drive upset around the leg backup plate subassembly.

Preferably, the seat plate assembly comprises a first sliding driving unit, a first frame and a seat plate, wherein the first frame is installed on the combined base along the front-back direction, and the seat plate is located on the first frame and is in sliding connection with the first frame through the first sliding driving unit; the backrest assembly comprises a second sliding driving unit, a second frame and a backrest, one end, corresponding to the length direction, of the second frame is arranged at the rear end of the first frame in a front-back overturning manner, and the backrest is positioned on the second frame and is connected with the second frame in a sliding manner through the second sliding driving unit; the leg backup plate assembly comprises a third sliding driving unit, a third frame and a leg backup plate, and the leg backup plate is positioned on the third frame and is in sliding connection with the third frame through the third sliding driving unit; the first sliding driving unit, the second sliding driving unit and the third sliding driving unit can respectively drive the seat plate, the backrest and the leg backup plate to move rightwards to extend out of the right side above the combined base or move leftwards to reset.

Preferably, the back includes backplate and push pedal, the push pedal is the strip shaped plate that sets up along left right direction, the left side of backplate be equipped with push pedal assorted through-hole, the push pedal sets up along left right direction in the through-hole, and its right-hand member with the backplate rotates to be connected, install the promotion unit on the second frame, the drive end drive of promotion unit the push pedal rotate to outstanding in the front side of backplate or accomodate in the through-hole.

Preferably, the promotion unit includes first extensible member, connecting rod and push rod, the one end of connecting rod is installed the right side of second frame, but the one end of push rod left right turn round install the connecting rod is kept away from the one end of second frame, and is located the connecting rod is close to one side of backplate, the push rod other end with the rear side of push pedal offsets, first extensible member is installed second frame left side, and its flexible end with the push rod rotates to be connected, the flexible end of first extensible member is scalable in order to drive the push rod rotates, so that the push rod promotes the push pedal rotates.

Preferably, the pushing unit further comprises a roller, the roller is rotatably mounted at one end, far away from the connecting rod, of the push rod, and the periphery of the roller is abutted to the rear side of the push plate.

Preferably, the auxiliary wheelchair further comprises a first overturning component, a supporting component and a second overturning component, the front end of the seat board component can be installed at the upper end of the combined base in a front-back overturning manner, the first overturning component is installed on the combined base and is in transmission connection with the seat board component, the first overturning component can drive the seat board component to overturn front and back by taking the front end of the seat board component as an axis, the supporting component can be installed on the combined base in a front-back overturning manner and is located in front of the leg backup board component, and the second overturning component is in transmission connection with the supporting component and can drive the supporting component to rotate so as to be close to or far away from the leg backup board component.

Preferably, the seat plate assembly is installed at the upper end of the combined base, and a drain hole penetrating through the seat plate assembly from top to bottom is formed in the seat plate assembly.

Preferably, the combined base comprises a lifting assembly and a base, the lifting assembly is installed at the upper end of the base, the lifting end of the lifting assembly faces upwards, the seat plate assembly is installed at the driving end of the lifting assembly, and the lifting assembly can drive the seat plate assembly, the backrest assembly and the leg rest plate assembly to lift synchronously.

Preferably, the lifting assembly comprises a support, two scissor arms and two second telescopic pieces, the support is arranged above the base, the two scissor arms are vertically arranged between the base and the support along the front-back direction respectively, the two scissor arms are distributed side by side along the left-right direction, each scissor arm comprises an upper supporting leg and a lower supporting leg, the upper supporting leg and the lower supporting leg are rotatably connected with the lower end of the support and the upper end of the base respectively, the upper supporting leg and the lower supporting leg are slidably connected with the lower end of the support and the upper end of the base respectively, the two second telescopic pieces are arranged on the left side and the right side of the base respectively, the telescopic ends of the two telescopic pieces are horizontally arranged along the front-back direction, and the telescopic ends of the two second telescopic pieces are respectively slidably connected with the two scissor arms and the two supporting legs of the.

Preferably, the base and the support are both U-shaped groove bodies with backward notches, the through grooves of the base and the support are vertically distributed, and the groove walls on the two sides of the support are respectively installed at the upper ends of the groove walls on the two sides of the base.

The auxiliary wheelchair can assist a maintainer to carry old people or disabled people to get on and off the bed, and one person can assist the maintainer to carry the old people or disabled people to get on and off the bed, so that the labor intensity of the maintainer is reduced.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic structural view of an auxiliary wheelchair according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a first frame, a second frame and a third frame according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a second frame according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a combination base according to an embodiment of the present invention;

FIG. 5 is a schematic view of the bracket and seat pan assembly according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a leg rest assembly according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a support assembly according to an embodiment of the invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The principles and features of the present invention are described below in conjunction with the accompanying fig. 1-7, which are provided by way of example only and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 7, an embodiment of the invention is provided, the auxiliary wheelchair of the embodiment comprises a combined base 1, a seat plate assembly 2, a backrest assembly 3, a leg rest plate assembly 4, a first driving assembly 5 and a second driving assembly 6, the seat plate component 2 is horizontally arranged on the combined base 1 along the front-back direction, the backrest component 3 is arranged at the rear end of the seat plate component 2 in a way of being capable of being turned back and forth, the leg rest plate assembly 4 is arranged at the front end of the seat plate assembly 2 in a front-back overturning manner, the first driving assembly 5 and the second driving assembly 6 are respectively arranged at one side of the seat plate assembly 2, the first driving assembly 5 is in transmission connection with the backrest assembly 3, and can drive back subassembly 3 is overturn from front to back, second drive assembly 6 with leg backup plate subassembly 4 transmission is connected, and can drive leg backup plate subassembly 4 is overturn from front to back.

The seat plate assembly 2, the backrest assembly 3 and the leg rest plate assembly 4 are all cuboid, and the first driving assembly 5 can drive the backrest assembly 3 to turn backwards so that the backrest assembly 3 is flush with the seat plate assembly 2 or turn forwards until the backrest assembly 3 is above the seat plate assembly 2; second drive assembly 6 can drive leg backup plate subassembly 4 forward turn over to with bedplate subassembly 2 flushes, or turn over backward to bedplate subassembly 2's below, back subassembly 3 with leg backup plate subassembly 4 all with bedplate subassembly 2 is leveled at ordinary times, the people on the supplementary wheelchair is flat lie back subassembly 3 seat subassembly 2 with on the leg backup plate subassembly 4, be convenient for the nurse with people on the supplementary wheelchair shift to the bed, or be convenient for the nurse shift the people in bed to the wheelchair on.

The utility model provides an auxiliary wheelchair can assist the nurse to get old man or the personage of disability from the bed, and alone can realize assisting the nurse to get old man or the personage of disability from the bed, has alleviateed the intensity of labour of nurse simultaneously.

Preferably, the seat plate assembly 2 comprises a first sliding driving unit 21, a first frame 22 and a seat plate 23, wherein the first frame 22 is installed on the combined base 1 along the front-back direction, and the seat plate 23 is located on the first frame and is connected with the first frame in a sliding manner through the first sliding driving unit; the backrest assembly 3 comprises a second sliding driving unit 31, a second frame 32 and a backrest 33, one end of the second frame 32 corresponding to the length direction is arranged at the rear end of the first frame 22 in a front-back overturning manner, and the backrest 33 is positioned on the second frame 32 and is connected with the second frame 32 in a sliding manner through the second sliding driving unit 31; the leg rest assembly 4 comprises a third sliding driving unit 41, a third frame 42 and a leg rest 43, wherein the leg rest 43 is positioned on the third frame 42 and is connected with the third frame 43 in a sliding manner through the third sliding driving unit 41; the first, second and third

sliding driving units

21, 31 and 41 may drive the seat plate 23, the backrest 33 and the leg rest plate 43 to move rightward to the right side extending above the combined base 1 or leftward to reset, respectively.

The first, second and third sliding

driving units

21, 31 and 41 can respectively drive the seat plate 23, the backrest 33 and the leg rest 43 to synchronously move to the upper part of the bed toward the right side of the seat plate 23, so as to shorten the distance that the nursing worker needs to carry the old or disabled person, thereby reducing the labor intensity of the nursing worker; or move to the left away from the bed to restore the home position.

The first frame 22 is a hollow rectangular parallelepiped frame structure, and the upper end of the first frame is open, the first sliding driving unit 21 is installed in the first frame 22, and the seat plate 23 is installed at the driving end of the first sliding driving unit 21 and is located near the upper end of the first frame 22.

The first sliding driving unit 21 includes a double-shaft motor 211, two first bevel gears 212, two second bevel gears 213, two first lead screws 214 and two first nuts 215, the two first lead screws 214 are disposed in the first frame 22 along the left-right direction, the two first lead screws 214 are distributed at intervals along the front-rear direction, two ends of each first lead screw 214 are respectively rotatably connected with two sides of the first frame 22, the two first nuts 215 are respectively screwed on the two first lead screws 214, the seat plate 23 is mounted on the two first nuts 215, the two first bevel gears 212 are respectively and coaxially and fixedly mounted at the same end of the two first lead screws 214, the double-shaft motor 211 is mounted on the first frame 22 along the front-rear direction and is located between the two first lead screws 214, the two second bevel gears 213 are respectively and coaxially and fixedly mounted on two driving shafts of the double-shaft motor 211, and are respectively engaged with the two first bevel gears 212, and the dual-shaft motor 211 can drive the two first lead screws 214 to synchronously rotate so as to drive the first nuts 215 to slide along the left-right direction, so as to drive the seat plate 23 to move left and right.

The first sliding driving unit 21 further includes two first linear guide rails 216 and two first linear bearings 217, the two first linear guide rails 216 are disposed in the first frame 22 along the left-right direction, the two first linear guide rails 216 are distributed at intervals along the front-rear direction, two ends of the two first linear guide rails 216 are respectively connected and fixed with the left side and the right side of the first frame 22, the two first linear bearings 217 are respectively sleeved on the two first linear guide rails 216 and can respectively move left and right along the two first linear guide rails 216, and the two first linear bearings 217 are respectively connected and fixed with the lower end surface of the seat plate 23.

The two first screws 214 and the two first nuts 215 can make the seat plate 23 move left and right smoothly, and prevent the seat from shaking.

Two guard plates for protecting the first sliding driving unit 21 are respectively disposed on the left and right sides of the first frame 22.

Second frame 32 is rectangular bodily form's frame construction, and its front side is uncovered, second frame 32 corresponds the pivot that length direction one end fixed mounting set up along left right direction level, both ends are respectively about the pivot the left and right sides of first frame 22 rotates to be connected, first drive assembly 5 with the pivot transmission is connected, and can drive the pivot drives second frame 32 with upset around back 33, the second drive unit 31 that slides is installed in second frame 32, back 33 is installed the drive end of second drive unit 31 that slides, and is located second frame 32 front side.

First drive assembly 5 includes first motor 51, worm wheel 52 and worm 53, the coaxial cover of worm wheel 52 is established the one end of pivot, worm 53 install on first frame 22 and with the worm wheel 52 meshing, first motor 51 is installed on first frame 22, and with the worm 53 transmission is connected, and first motor 51 can drive worm 53 rotates in order to drive worm wheel 52 with the pivot rotates, in order to drive upset around backrest components 3.

The worm wheel 52 and the worm 53 have a self-locking function, and the stability of the backrest assembly 3 is ensured.

The left and right sides of the second frame 32 are respectively provided with two handrails capable of being turned back and forth, so that the old or the disabled can sit stably on the auxiliary wheelchair, and the wheelchair is prevented from falling down.

The second sliding driving unit 31 includes a second motor 311, two third bevel gears 312, a second screw 313, a second nut 314, two second linear guide rails 315 and two second linear bearings 316, the second screw 313 is disposed inside the second frame 32 along the left-right direction, and two ends of the second screw are respectively rotatably connected to the left and right sides of the second frame 32, the second nut 314 is screwed on the second screw 313, one third bevel gear 312 is coaxially and fixedly mounted at one end of the second screw 313, the second motor 311 is mounted on the second frame 32, and a driving end thereof is distributed along the length direction of the second frame 32, the other third bevel gear 312 is coaxially and fixedly mounted on the driving end of the second motor 311, and the two third bevel gears 312 are engaged with each other, the two second linear guide rails 315 are disposed inside the second frame 32 along the left-right direction, the two second linear guide rails 315 are distributed at intervals in the front-rear direction, two ends of each of the two second linear guide rails 315 are respectively connected and fixed to the left side and the right side of the second frame 32, the two second linear bearings 316 are respectively sleeved on the two second linear guide rails 315 and can respectively slide left and right along the two second linear guide rails 315, the backrest 33 is fixedly installed on the second nut 314 and the two second linear bearings 316, the second motor 311 can drive the second screw rod 313 to rotate and drive the second nut 314 to move left and right along the second screw rod 313, so that the backrest 33 is driven to move left and right.

The first lead screw 214, the first nut 215, the two second linear guide rails 315 and the two second linear bearings 316 can enable the backup plate to move left and right stably, so that the backup plate is prevented from shaking.

The periphery and the rear side of the second frame 32 are respectively provided with a shell so as to seal the first driving assembly 5 and the second sliding driving unit 31 inside the second frame 32, thereby ensuring the safety of the auxiliary wheelchair.

The third frame 42 is a rectangular frame structure, and the left and right sides of one end of the third frame 42 corresponding to the length direction are respectively arranged on the left and right sides of the front end of the first frame 22 in a front-back turnable manner.

The second driving assembly 6 comprises two first telescopic cylinders 61, two telescopic air rods are respectively arranged on the left side and the right side of the first frame 22 in a front-back overturning manner, and telescopic ends of the two telescopic air rods are respectively connected with the middle parts of the left side and the right side of the third frame 42 in a rotating manner.

The telescopic ends of the two first telescopic cylinders 61 can be synchronously lengthened to drive the third frame 42 to turn backwards or synchronously shortened to drive the third frame 42 to turn forwards.

The first telescopic cylinder 61 is simple and portable in structure and convenient to install and maintain.

The third sliding driving unit 41 is installed on the third frame 42, and the leg rest 43 is installed at a driving end of the third sliding driving unit 41 and located at a front side of the third frame 42.

The third sliding driving unit 41 includes a third motor 411, a first straight gear 412, a rack 413, a third linear guide 414 and a third linear bearing 415, the third linear guide 414 is disposed in the third frame 42 along the left-right direction, two ends of the third linear guide 414 are fixedly connected to the left and right sides of the third frame 42, the third linear bearing 415 is sleeved on the third linear guide 414 and can move left and right along the third linear guide 414, the leg rest 43 is fixed on the third linear bearing 415, the length direction of the leg rest is identical to the length direction of the third frame, the rack 413 is horizontally mounted at the rear side of the leg rest 43 along the left-right direction, the tooth portion of the rack 413 faces the rear side of the leg rest 43, the third motor 411 is mounted on the third frame 42, and the driving ends thereof are distributed along the length direction of the third frame 42, the first straight gear 412 is coaxially and fixedly installed at a driving end of the third motor 411, and is engaged with the rack 413.

The third motor 411 can drive the first straight gear 412 to rotate, so as to drive the rack 413 to drive the leg rest 43 to move left and right.

The leg rest plate 43 moves left and right under the driving of the first straight gear 412 and the rack 413, and the transmission is stable.

Preferably, the backrest 33 includes a back plate 331 and a push plate 332, the push plate 332 is a strip-shaped plate disposed along the left-right direction, a through hole matched with the push plate 332 is disposed on the left side of the back plate 331, the push plate 332 is disposed in the through hole along the left-right direction, and the right end of the push plate is rotatably connected to the back plate 331, the second frame 32 is mounted with the pushing unit 34, and the driving end of the pushing unit 34 can drive the push plate 332 to rotate to protrude out of the front side of the back plate 331 or be accommodated in the through hole.

When a person lies on the seat plate 23, the backrest plate and the leg rest plate 43, the pushing unit 34 pushes the push plate 322 to rotate to protrude from the front side of the back plate 331 so as to assist the patient to turn over, the pushing unit 34 may be a telescopic cylinder, the telescopic cylinder is installed in the second frame 32, and the telescopic end of the telescopic cylinder is rotatably connected with the rear side of the push plate 332.

Preferably, the pushing unit 34 includes a first telescopic member 341, a connecting rod 342 and a push rod 343, one end of the connecting rod 342 is installed at the right side of the second frame 32, one end of the push rod 343 is installed at one end of the connecting rod 342 far away from the second frame 32 and is located at one side of the connecting rod 342 close to the back plate 331 in a manner of being capable of rotating left and right, the other end of the push rod 343 abuts against the rear side of the push plate 332, the first telescopic member 341 is installed at the left side of the second frame 32 and is rotatably connected with the push rod 343 at its telescopic end, and the telescopic end of the first telescopic member 341 is telescopic to drive the push rod 343 to rotate, so that the push rod 343 pushes the push plate 332 to rotate.

The push rod 343 may be a bar-shaped rod, one end of the push rod 343 is rotatably connected to one end of the connecting rod 342 far away from the second frame 32 and is located at one side of the connecting rod 342 close to the back plate 331, the other end of the push rod 343 abuts against the rear side of the push plate 332, and the telescopic end of the first telescopic member 341 is rotatably connected to the middle of the push rod 343. In the initial state, the push rod 343 is in a horizontal state, the first telescopic member 341 extends and drives the push rod 343 to rotate rightward, so that the roller 344 pushes the push plate 332 to rotate rightward, or the telescopic end of the first telescopic member 341 shortens and drives the push rod 343 to rotate leftward, so that the push plate 332 is reset.

The push rod 343 may also be a U-shaped rod, one end of the push rod 343 having an arc shape is rotatably connected to the connecting rod 342, an opening of the push rod 343 faces to the left, a side wall of one end of the push rod 343 is located on one side of the connecting rod 342 close to the back plate 331, a side wall of the other end of the push rod 343 is located on one side of the connecting rod 342 away from the back plate 331, a side wall of one end of the connecting rod 342 close to the back plate 331 abuts against a rear side of the push plate 332, and a telescopic end of the first telescopic member 341 is rotatably connected to a side wall of one end of the push rod 343 away. In the initial state, the push rod 343 is in a horizontal state, the telescopic end of the first telescopic member 341 can be shortened to drive the push rod 343 to rotate rightward, so that the end of the push rod 343 far away from the second frame 32 pushes the push plate 332 to rotate rightward, or the telescopic end of the first telescopic member 341 can be extended to drive the push rod 343 to rotate leftward, so that the push plate 332 is reset.

First drive unit 21 that slides, second drive unit 31 that slides and third drive unit 41 that slides drives respectively bedplate 23, backup plate and leg backup plate 43 move right and stretch out the right side of combination base 1 top, first extensible member 341 can be telescopic cylinder, promotion unit 34 drive push pedal 332 rotates right, and the people is in rotate right under the effect of push pedal 332, realize the tie lie in move to the sick bed after the people on the wheelchair stands up, alleviate the intensity of labour of guardian.

Preferably, the pushing unit 34 further comprises a roller 344, the roller 344 is rotatably mounted at one end of the push rod 343 far away from the connecting rod 342, and the periphery of the roller 344 abuts against the rear side of the push plate 332.

The roller 344 contacts with the rear roller 344 of the push plate 332 to ensure that the push rod 343 smoothly pushes the push plate 332 to rotate.

When the push rod 343 is a U-shaped rod, the roller 344 is mounted on the side wall of the connecting rod 342 near one end of the back plate 331 and abuts against the rear side of the push plate 332; the connecting rod 342 and the telescopic end of the first telescopic member 341 push the push rod 343 to rotate left and right by utilizing the lever principle, and the structure is simple and labor-saving.

Preferably, the auxiliary wheelchair further comprises a first overturning component 7, a supporting component 8 and a second overturning component 9, wherein the front end of the seat board component 2 can be installed at the upper end of the combined base 1 in a forward-backward overturning manner, the first overturning component 7 is installed on the combined base 1 and is in transmission connection with the seat board component 2, the first overturning component 7 can drive the seat board component 2 to overturn forward and backward by taking the front end thereof as an axis, the supporting component 8 can be installed on the combined base 1 in a forward-backward overturning manner and is positioned in front of the leg rest component 4, and the second overturning component 9 is in transmission connection with the supporting component 8 and can drive the supporting component 8 to rotate so as to be close to or far away from the leg rest component 4.

The first turnover assembly 7 can drive the seat board assembly 2 to turn forwards, so that the seat board assembly 2 and the backrest assembly 3 are on the same vertical plane, a person is in an upright state, or when the seat board assembly 2 is driven to turn backwards to be horizontal, the rear end of the seat board assembly 2 is placed on the combined base 1; the second turnover assembly 9 can drive the support assembly 8 to turn backwards and approach the leg rest assembly 4 so as to clamp the legs of the person between the leg rest assembly 4 and the support assembly 8 to assist the old or disabled person to stand up, thereby facilitating the excretion of the patient after taking off the trousers of the old or disabled person.

Preferably, a safety belt for fixing the old or disabled person is further provided on the backrest module 3.

When the old people on the auxiliary wheelchair need to stand, the old people or the disabled people on the wheelchair are bound by the safety belt in advance, the first overturning assembly 7 drives the seat plate assembly 2 to overturn forwards, and the safety belt prevents the standing old people or the disabled people from falling down due to unstable standing.

First upset subassembly 7 includes two second telescopic cylinder 71, two the installation that can overturn around second telescopic cylinder 72 respectively on the combination base 1, and the two distributes side by side along left right direction, two the flexible end of second telescopic cylinder 72 respectively with the left and right sides of first frame 22 rotates and is connected.

The telescopic ends of the two second telescopic cylinders 71 extend to drive the seat plate assembly 2 to drive the backrest 33 to turn forwards, or the telescopic ends of the two second telescopic cylinders 72 shorten to drive the seat plate assembly 2 to drive the backrest 33 to turn backwards.

The second telescopic cylinder 71 is simple in structure, light and convenient to install and maintain.

Preferably, the supporting component 8 includes backup pad 81 and two spinal branch vaulting poles 82, the one end of two spinal branch vaulting poles 82 respectively with combination base 1 rotates to be connected, and the two distributes side by side along left right direction, backup pad 81 sets up two along left right direction between the bracing piece 82 to be located the place ahead of leg backup plate subassembly 4, both ends respectively with two about backup pad 81 the bracing piece 82 is kept away from the one end of combination base 1 is connected fixedly, second upset subassembly 9 with arbitrary one the bracing piece 82 transmission is connected, and can drive and correspond the bracing piece 82 drives the backup pad 81 front and back upset is in order to be close to or keep away from leg backup plate subassembly 4.

When old man or the physical disability sit on the wheelchair, the arbitrary one of second upset subassembly 9 drive the bracing piece 82 rotates and is close to leg backup plate 43 is in order to hold old man or physical disability's leg clamp the bracing piece 82 with between the leg backup plate 43, simultaneously first upset subassembly 7 drive bedplate subassembly 2 is forward to overturn to vertical state to make old man or physical disability stand, be convenient for the protective worker take off behind old man or physical disability's the trousers auxiliary patient and excrete.

The second turnover component 9 includes a fourth motor, the fourth motor is installed on the combined base 1, and the driving end of the fourth motor is horizontally arranged along the left-right direction, the driving end of the fourth motor is connected and fixed with any one of the supporting rods 82, and the driving end of the fourth motor can rotate to drive the supporting rods 82 and the supporting plate 81 to rotate to be close to or far away from the leg rest plate 43.

Preferably, the seat plate assembly 2 is installed at the upper end of the combined base 1, and the seat plate assembly 2 is provided with a drain hole 24 penetrating through the seat plate assembly from top to bottom.

After the protective worker takes off the trousers of the old or the disabled, the seat plate component 2 is in a horizontal state, the bedpan is placed on the combined base 1, the old or the disabled can directly go to the toilet through the drainage hole 24 on the wheelchair, the old or the disabled does not need to be additionally carried to the toilet, and the labor burden of the protective worker is reduced.

The seat plate 23 is provided with a drain hole 24 penetrating through the seat plate from top to bottom, a cover plate matched with the first drain hole 24 is arranged on the seat plate 23, and the cover plate can be placed on the seat plate 23 to close the drain hole 24 or taken down to open the drain hole 24.

Wherein, two first lead screw 214 distributes respectively in the place ahead and the rear of escape orifice 24, two first linear guide rail 216 distributes respectively two one side that first lead screw was kept away from each other to avoid the excrement to be stained with two first linear guide rail 216 and two on the first lead screw.

Preferably, the combined base 1 comprises a lifting component 11 and a base 12, the lifting component 11 is installed at the upper end of the base 12, the lifting end of the lifting component is upward, the seat plate component 2 is installed at the driving end of the lifting component 11, and the lifting component 11 can drive the seat plate component 2, the backrest component 3 and the leg rest plate component 4 to be lifted synchronously.

The lifting component 11 can drive the seat board component 2, the backrest component 3 and the leg backup board component 4 to be lifted synchronously to adapt to different bed heights or the heights of a toilet stool, and the application range of the auxiliary wheelchair is widened.

The lower end of the base 12 is provided with four wheels, the four wheels are enclosed to form a rectangle, and the two wheels in front are universal wheels, so that the auxiliary wheelchair can walk conveniently.

The auxiliary wheelchair further comprises two fifth motors, the two fifth motors are respectively in transmission connection with the two wheels located on the rear side of the base 12, and the two fifth motors can drive the two wheels located on the rear side to rotate.

Preferably, the lifting assembly 11 comprises a frame 111, two scissor arms 112 and two second telescopic members 113, the bracket 111 is arranged above the base 12, the two scissor arms 112 are vertically arranged between the base 12 and the bracket 111 along the front-back direction, and the two are distributed in parallel along the left-right direction, the upper and lower support legs on one side of each scissor arm 112 are respectively connected with the lower end of the bracket 111 and the upper end of the base 12 in a rotating manner, the upper and lower support legs on the other side are respectively connected with the lower end of the bracket 111 and the upper end of the base 12 in a sliding manner, the two second telescopic pieces 113 are respectively arranged on the left and right sides of the base 12, and the telescopic ends of the two telescopic pieces are horizontally arranged along the front-back direction, and the telescopic ends of the two second telescopic pieces 113 are respectively in transmission connection with the two support legs of the two scissor arms 112 which are in sliding connection with the base 12.

The upper and lower support legs at the rear side of each scissor arm 112 are respectively rotatably connected with the lower end of the bracket 111 and the upper end of the base 12, the two support legs at the front side of each scissor arm 112 are respectively slidably connected with the lower end of the bracket 111 and the upper end of the base 12, the telescopic ends of the two second telescopic members 113 are horizontally arranged forwards and are respectively in transmission connection with the two support legs at the front sides of the two scissor arms 112, and the telescopic ends of the two second telescopic members 113 can be extended to drive the two support legs at the front sides of the two scissor arms 112 to move forwards so as to lower the bracket 111, or shortened to drive the two support legs at the front sides of the two scissor arms 112 to move backwards so as to raise the bracket 111.

The left side and the right side of the upper end of the base 12 are respectively provided with two first slide ways horizontally arranged along the front-back direction, and the two support legs at the lower end of the front sides of the two scissor arms 112 are respectively installed in the two first slide ways in a sliding manner and can respectively slide back and forth along the first slide ways; the two scissor arms 112 are arranged inside the support 111, a second slide way horizontally arranged in the front-back direction is arranged on the front portion of one side, close to each other, of the left side and the right side of the support 111, and the two supports 111 at the upper ends of the front sides of the two scissor arms 112 are respectively installed on the two second slide ways and can respectively slide back and forth along the second slide ways.

Lifting unit 11 still includes two and decorates the box, two decorate the box and all set up along the fore-and-aft direction, and two it is uncovered to decorate front side, upper end and the lower extreme of box, two it establishes to cover respectively to decorate the box the left and right sides of support 111, and respectively with the support 111 left and right sides is connected fixedly, in order to seal the support 111 left and right sides first upset subassembly 7.

Preferably, the base 12 is a U-shaped groove with a backward notch, and the through grooves are vertically distributed, the bracket 111 includes a U-shaped rod with a backward opening, and the through grooves are vertically distributed, the front and rear ends of the two sides of the U-shaped rod are respectively provided with two upright posts by upward extending, the left and right sides of the front end of the seat plate assembly 2 are respectively rotatably mounted on the upper ends of the two upright posts, the two second telescopic cylinders 71 are respectively mounted on the two sides of the U-shaped rod, and the first turnover assembly 7 can drive the seat plate assembly 2 to be turned over to the left and right sides of the rear end and respectively placed on the upper ends of the two upright posts.

A toilet stool which is used for pushing the auxiliary wheelchair to a toilet by a maintainer is positioned at the lower end of the base 12, and the drainage hole 24 is aligned with the toilet stool, so that the auxiliary wheelchair is convenient to clean, and the labor of the maintainer is reduced; the old or the disabled on the wheelchair can also move the auxiliary wheelchair to align the drain hole 24 with the toilet stool, so that the independence of the old or the disabled on the wheelchair is improved, and the daily life of the old or the disabled is facilitated.

The toilet may be a toilet, a squat or a bedpan.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. An auxiliary wheelchair is characterized by comprising a combined base (1), a seat plate component (2), a backrest component (3), a leg backup plate component (4), a first driving component (5) and a second driving component (6), wherein the seat plate component (2) is horizontally installed on the combined base (1) along the front-back direction, the backrest component (3) is installed at the rear end of the seat plate component (2) in a front-back overturning manner, the leg backup plate component (4) is installed at the front end of the seat plate component (2) in a front-back overturning manner, the first driving component (5) and the second driving component (6) are respectively installed at one side of the seat plate component (2), the first driving component (5) is in transmission connection with the backrest component (3) and can drive the backrest component (3) to overturn back-front, and the second driving component (6) is in transmission connection with the leg backup plate component (4), the auxiliary wheelchair further comprises a first overturning component (7), a supporting component (8) and a second overturning component (9), wherein the front end of the seat board component (2) can be installed at the upper end of the combined base (1) in a front-back overturning manner, a drain hole (24) which penetrates through the seat board component (2) from top to bottom is formed in the seat board component (2), the first overturning component (7) is installed on the combined base (1) and is in transmission connection with the seat board component (2), the first overturning component (7) can drive the seat board component (2) to overturn from front to back by taking the front end of the seat board component as an axis, the supporting component (8) can be installed on the combined base (1) in a front-back overturning manner and is located in front of the leg backup board component (4), and the second overturning component (9) is in transmission connection with the supporting component (8), and can drive supporting component (8) rotate in order to be close to or keep away from leg backup plate subassembly (4), combination base (1) includes lifting unit (11) and base (12), lifting unit (11) are installed base (12) upper end, and its lift end is up, bedplate subassembly (2) are installed the drive end of lifting unit (11), lifting unit (11) can drive bedplate subassembly (2), back subassembly (3) and leg backup plate subassembly (4) lift in step, lifting unit (11) include support (111), two cut formula arm (112) and two second extensible member (113), the support sets up in base (12) top, two cut formula arm (112) and vertically set up along the fore-and-aft direction respectively between base (12) and support (111), and the two are along controlling the direction and distribute side by side, the upper and lower support legs of one side of each scissor arm (112) are respectively rotatably connected with the lower end of the support (111) and the upper end of the base (12), the upper and lower support legs of the other side are respectively slidably connected with the lower end of the support (111) and the upper end of the base (12), two second telescopic parts (113) are respectively installed on the left and right sides of the base (12), the telescopic ends of the two second telescopic parts (113) are horizontally arranged along the front and back direction, the telescopic ends of the two second telescopic parts are respectively slidably connected with the two scissor arms (112) and the two support legs of the base (12) in a transmission manner, the base (12) is a U-shaped groove with a backward notch and through grooves thereof are vertically distributed, the support (111) comprises a U-shaped rod with a backward opening and through grooves thereof are vertically distributed, the front end and the back end of the two sides of the U-shaped rod are respectively provided with two upright posts in an upward extension, the left and right sides of bedplate subassembly (2) front end is rotatable the installation respectively two be located the front end stand upper end, first upset subassembly (7) can drive bedplate subassembly (2) upset is placed respectively to the left and right sides of its rear end two be located the rear end stand upper end.

2. The auxiliary wheelchair as claimed in claim 1, wherein the seat plate assembly (2) comprises a first sliding drive unit (21), a first frame (22) and a seat plate (23), the first frame (22) is mounted on the combined base (1) in the fore-and-aft direction, and the seat plate (23) is located on the first frame and is slidably connected with the first frame through the first sliding drive unit; the backrest assembly (3) comprises a second sliding driving unit (31), a second frame (32) and a backrest (33), one end of the second frame (32) corresponding to the length direction can be arranged at the rear end of the first frame (22) in a front-back overturning mode, and the backrest (33) is positioned on the second frame (32) and is connected with the second frame (32) in a sliding mode through the second sliding driving unit (31); the leg backup plate assembly (4) comprises a third sliding driving unit (41), a third frame (42) and a leg backup plate (43), wherein the leg backup plate (43) is positioned on the third frame (42) and is in sliding connection with the third frame through the third sliding driving unit (41); the first sliding driving unit (21), the second sliding driving unit (31) and the third sliding driving unit (41) can respectively drive the seat plate (23), the backrest (33) and the leg backup plate (43) to move rightwards to extend out of the right side above the combined base (1) or move leftwards to reset.

3. The auxiliary wheelchair as claimed in claim 2, wherein the backrest (33) comprises a back plate (331) and a push plate (332), the push plate (332) is a strip-shaped plate arranged along the left-right direction, a through hole matched with the push plate (332) is arranged on the left side of the back plate (331), the push plate (332) is arranged in the through hole along the left-right direction, the right end of the push plate (332) is rotatably connected with the back plate (331), the second frame (32) is provided with a pushing unit (34), and the driving end of the pushing unit (34) can drive the push plate (332) to rotate to protrude out of the front side of the back plate (331) or be accommodated in the through hole.

4. An auxiliary wheelchair in accordance with claim 3, characterized in that the pushing unit (34) comprises a first telescopic member (341), a connecting rod (342) and a push rod (343), one end of the connecting rod (342) is installed at the right side of the second frame (32), one end of the push rod (343) is arranged at one end of the connecting rod (342) far away from the second frame (32) in a left-right rotating way, and is positioned at one side of the connecting rod (342) close to the back plate (331), the other end of the push rod (343) is pressed against the rear side of the push plate (332), the first telescopic member (341) is installed at the left side of the second frame (32), and the telescopic end of the first telescopic part (341) is telescopic to drive the push rod (343) to rotate so that the push rod (343) pushes the push plate (332) to rotate.

5. An auxiliary wheelchair in accordance with claim 4, characterized in that the push unit (34) further comprises a roller (344), the roller (344) being rotatably mounted at an end of the push rod (343) remote from the connecting rod (342), the outer periphery of the roller (344) abutting against the rear side of the push plate (332).