CN110522572B

CN110522572B - Multifunctional deformable wheelchair

Info

Publication number: CN110522572B
Application number: CN201910895556.4A
Authority: CN
Inventors: 胡向松
Original assignee: Research Institute of Zhejiang University Taizhou
Current assignee: Research Institute of Zhejiang University Taizhou
Priority date: 2019-09-21
Filing date: 2019-09-21
Publication date: 2020-12-15
Anticipated expiration: 2039-09-21
Also published as: CN110522572A

Abstract

A multifunctional deformable wheelchair comprises a front chair body, a pedal arranged on the front side of the front chair body and a backrest arranged above the rear end of the front chair body, wherein the left side and the right side of the backrest are provided with side turning plates which are mutually symmetrical; a rear chair body is arranged at the rear side of the front chair body, and the front chair body is connected with the rear chair body through a spacing bracket; the upper surface of the front chair body is provided with a front seat board; the left side and the right side of the front seat plate are provided with first baffles which are symmetrical to each other; the left side and the right side of the front end of the front chair body are provided with first turnover devices; the front chair body is connected with a foot rest plate through a first turnover device; the front chair body is internally provided with an ejection device, and one end of the ejection device is connected to the foot rest plate; and second baffles which are symmetrical to each other are arranged on the left side and the right side of the foot rest plate. The multifunctional deformation wheelchair not only can solve the problem of patient mobility, but also can solve the problem of family members mobility, and can rest by moving to the bed without danger.

Description

Multifunctional deformable wheelchair

Technical Field

The invention relates to a wheelchair, in particular to a multifunctional deformable wheelchair.

Background

The wheelchair is an important tool for rehabilitation, can meet the requirements of physically disabled persons and persons with mobility disabilities for riding instead of walk, is convenient for family members to move and take care of patients, but in the actual use process, the family members are always in the walking state when pushing the wheelchair to move, and can be tired if being in the walking state for a long time, and accidents are easily caused if the persons can move or take care of the patients sitting on the wheelchair in the tired state extremely difficultly.

When a patient sitting on the wheelchair needs to move to the bed for rest, if other people are located beside the patient, the other people can hold the patient on the sickbed, the moving mode is simple, but the dependence on other people is too strong, and meanwhile, the patient can be restrained to other people, so that the other people can not freely use the time of the patient, if the patient sitting on the wheelchair forcibly moves the patient to the bed by depending on the arm strength of the patient, not only is the whole moving process very difficult, but also once the arm loses strength in the moving process, the patient is very easy to fall down to the ground, and serious potential safety hazards exist.

Disclosure of Invention

The invention aims to provide a multifunctional deformation wheelchair which can solve the problem of patient mobility and the problem of family members mobility and can rest on the bed without danger by moving the wheelchair.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the invention discloses a multifunctional deformation wheelchair, which comprises a front chair body, a pedal arranged on the front side of the front chair body and a backrest arranged above the rear end of the front chair body, and is characterized in that: the left side and the right side of the backrest are provided with side turning plates which are mutually symmetrical; a rear chair body is arranged at the rear side of the front chair body, and the front chair body is connected with the rear chair body through a spacing bracket; the upper surface of the front chair body is provided with a front seat board; the left side and the right side of the front seat plate are provided with first baffles which are symmetrical to each other; the left side and the right side of the front end of the front chair body are provided with first turnover devices; the front chair body is connected with a foot rest plate through a first turnover device; the front chair body is internally provided with an ejection device, and one end of the ejection device is connected to the foot rest plate; the left side and the right side of the foot rest plate are provided with second baffle plates which are mutually symmetrical; the upper surface of the rear chair body is provided with a rear seat board; auxiliary plates which are symmetrical to each other are arranged on the left side and the right side of the rear seat plate; a back plate is arranged at the rear end of the rear seat plate; the front seat plate and the first baffle plate, the front seat plate and the backrest, the foot rest plate and the second baffle plate, the lower end of the foot rest plate and the rear end of the pedal, the rear seat plate and the auxiliary plate, and the rear seat plate and the backrest plate are connected through a positioning device; the backrest, the pedal, the first baffle, the second baffle, the auxiliary plate and the backrest plate are all provided with a limiting device; the left side and the right side of the lower surface of the front chair body and the left side and the right side of the lower surface of the rear chair body are respectively provided with a moving device which are mutually symmetrical; one side of the rear chair body is provided with an electric switch.

The first turnover device comprises a first fixed guide bar fixed in the front chair body; the left side and the right side of the front end of the front chair body are provided with first telescopic holes corresponding to the first fixed guide bar; one end of the first fixed guide bar penetrates out of the first telescopic hole; the left side and the right side of the foot rest plate are provided with first movable guide bars corresponding to the first fixed guide bars in position, and the first movable guide bars and the first fixed guide bars are both arc-shaped; a first sliding rail is arranged on one side of the first movable guide strip, and a first sliding groove matched with the first sliding rail is arranged on one side, opposite to the first sliding rail, of the first fixed guide strip; a first sliding rod is arranged at one end, adjacent to the first telescopic hole, of the first sliding rail; the first fixed guide bar is provided with a first strip-shaped sliding hole communicated with the first sliding chute, the first strip-shaped sliding hole is arc-shaped, and the first sliding rod is clamped in the first strip-shaped sliding hole; first clamping grooves which are symmetrical to each other are formed in two sides of the first sliding rail; a first clamping strip matched with the first clamping groove extends inwards from the edges of the two sides of the notch of the first sliding groove; the ejection device comprises a first cylinder arranged in the front chair body; the middle part of the front end of the front chair body is provided with a first movable hole communicated with the inner space of the front chair body; one end of a piston rod of the first air cylinder penetrates out of the first movable hole and is hinged with a T-shaped first sliding block; the foot rest plate is provided with a first extending groove which is connected with the first sliding block, and the cross section of the first extending groove is T-shaped.

The positioning device comprises a rotating shaft, the rotating shaft is arranged on the left side and the right side of the backrest, the left side and the right side of the rear end of the front seat plate, the front side and the rear side of the left end and the right end of the front seat plate, the upper side and the lower side of the left end and the right end of the foot rest plate, the left side and the right side of the lower end of the foot rest plate, the front side and the rear side of the left; the side turning plate, the backrest, the first baffle, the second baffle, the pedal, the auxiliary plate and the backrest plate are all provided with rotating holes matched with the rotating shaft; a torsion spring is sleeved outside the rotating shaft; one end of the torsion spring is fixed on the rotating shaft, and the other end of the torsion spring is fixed in the rotating hole.

The limiting device comprises a plug board, one end of the plug board is provided with a limiting plug, and the other end of the plug board is provided with an isosceles trapezoid-shaped elastic sheet; the outer walls of the side turning plate, the backrest, the pedal, the first baffle, the second baffle, the auxiliary plate and the backrest plate are all provided with hand pulling grooves matched with the inserting plates; the side turning plate, the backrest, the pedal, the first baffle plate, the second baffle plate, the auxiliary plate and the backrest plate are all internally provided with a resetting cavity communicated with the hand pulling groove, the width of the resetting cavity is greater than that of the hand pulling groove, and the elastic sheet is embedded in the resetting cavity; the backrest, the front seat plate, the foot rest plate and the rear seat plate are all provided with limit holes matched with the limit plugs; the side turning plate, the backrest, the pedal, the first baffle, the second baffle, the auxiliary plate, the end face of one end, opposite to the limiting hole, of the backrest plate are provided with a moving hole communicated with the hand pulling groove, and the limiting plug penetrates through the moving hole.

The inserting plate is provided with a force application opening.

The moving device comprises lifting cylinders arranged on the lower surfaces of the front chair body and the rear chair body; the lower end of a piston rod of the lifting cylinder is provided with a steering motor; a motor shaft of the steering motor is connected with a steering head; a fixed seat is fixed on the outer side of the steering head; a driving motor is arranged outside the fixed seat; a motor shaft of the driving motor is connected with a driving gear; the fixed seat is connected with a support plate; a fixed shaft is arranged on the outer sides of the front end and the rear end of the support plate; the fixed shaft is provided with a driven rotating wheel matched with the fixed shaft, the driven rotating wheel is provided with a latch meshed with the driving gear, and the driven rotating wheels on the front side and the rear side are connected through a crawler; the driving gear is arranged between the driven rotating wheels at the front side and the rear side.

A fixed frame is arranged on the outer side of the lifting cylinder arranged on the lower surface of the rear chair body; a foot stepping plate is arranged above the fixing frame.

The left side and the right side of the front end of the front chair body are provided with second turnover devices which are symmetrical to each other; the second turnover device comprises a second fixed guide bar arranged in the front part of the front chair body; the left side and the right side of the upper surface of the front end of the front chair body are provided with second telescopic holes corresponding to the positions of the second fixed guide bars; one end of the second fixed guide bar penetrates out of the second telescopic hole; the left side and the right side of the front seat plate are provided with second movable guide bars corresponding to the second fixed guide bars in position, and the second fixed guide bars and the second movable guide bars are both arc-shaped; a second sliding rail is arranged on one side of the second fixed guide strip, and a second sliding groove matched with the second sliding rail is arranged on the side, opposite to the second sliding rail, of the second movable guide strip; a second sliding rod is arranged at one end, adjacent to the second telescopic hole, of the second sliding rail; the second movable guide bar is provided with a second strip-shaped sliding hole communicated with the second sliding chute, the second strip-shaped sliding hole is arc-shaped, and the second sliding rod is clamped in the second strip-shaped sliding hole; two sides of the second slide rail are provided with second clamping grooves which are mutually symmetrical; a second clamping strip matched with the second clamping groove extends inwards from the edges of the two sides of the notch of the second sliding groove; the upper surface of the front chair body is provided with a first accommodating groove; a turning motor is arranged in the rear end of the first accommodating groove; a motor shaft of the overturning motor is connected with a second cylinder; a second accommodating groove corresponding to the first accommodating groove in position is formed in the side wall of the front seat plate, opposite to the front seat body; a second stretching groove with a T-shaped cross section is arranged in the second accommodating groove; the end part of a piston rod of the second cylinder is hinged with a second sliding block matched with the second extension groove, and the second sliding block is T-shaped.

The rear chair body is provided with a displacement hole penetrating through the rear chair body; the rear end of the spacing bracket passes through the displacement hole backwards and is provided with a stop block.

The invention has the beneficial effects that:

compared with the prior art, the multifunctional deformation wheelchair adopting the structure can sit on two persons at the same time, in the whole moving process of the wheelchair, a patient can sit on the front seat board of the wheelchair, family members can sit on the rear seat board of the wheelchair as well, the whole moving process does not need to accompany the family members by walking, the condition that the body is tired due to the long-term walking of the family members is effectively avoided, the accompany of the family members is facilitated, the rear seat board is positioned behind the front seat board, the family members sitting on the wheelchair are always positioned behind the patient, the patient can be cared for one action accurately, and the condition that the patient is unexpected in the moving process is effectively avoided.

Compared with the prior art, when a patient needs to lie on a bed for rest, the multifunctional deformation wheelchair adopting the structure of the invention can easily finish the deformation work of the wheelchair by the patient even if no other person is beside the patient, the patient can firstly turn the pedal and the second baffle plate, then turn the first baffle plate, then stretch the hands to the back side, turn the backrest downwards, after the backrest is also turned, the patient can slowly lie backwards, the patient after lying down can touch the backrest plate to reach and can turn the backrest plate immediately, after the backrest plate is turned, then can place the hands on the left side and the right side to turn the auxiliary plate upwards, finally the patient can start the first air cylinder through the electric switch to enable the piston rod of the first air cylinder to push the foot backrest plate, finally complete the turning action of the foot backrest plate, at the moment, the wheelchair becomes a bed completely, and the patient can directly lie on the bed for rest, and first baffle, the second baffle, the board of turning on one's side, the existence of accessory plate can effectively increase the area of bed, make the patient can overturn by a wide margin, do benefit to the patient's rest, the transfer process of patient from wheelchair to bed has effectively been avoided to this kind of deformation mode, when the patient need lie the bed and take a rest, be in the wheelchair all the time in fact, the condition that the patient shifts and easily leads to the emergence accident has effectively been avoided, and this kind of wheelchair deformation mode makes the patient can independently realize the rest of self, need not the trouble.

Drawings

FIG. 1 is a schematic view of a multi-function wheelchair according to the present invention;

FIG. 2 is a schematic view of a portion of the multi-function wheelchair of the present invention;

FIG. 3 is a schematic view of the structure of the position limiting device;

FIG. 4 is a schematic view of an angle at which the transformable wheelchair having multiple functions of the present invention is transformed into a bed;

FIG. 5 is a schematic view of another angle of the transformable wheelchair having multiple functions according to the present invention transformed into a bed;

FIG. 6 is an enlarged view of section A of FIG. 5;

FIG. 7 is a schematic diagram of a mobile device;

FIG. 8 is a schematic view showing the front seat plate of the convertible wheelchair of this invention turned upward;

fig. 9 is an enlarged view of a portion B of fig. 8;

fig. 10 is an enlarged view of a portion C of fig. 8.

Detailed Description

The invention is described in further detail below with reference to the following figures and detailed description:

referring to fig. 1 to 10, the present invention provides a multifunctional wheelchair, which comprises a front body 1, a pedal 2 disposed at the front side of the front body 1, and a backrest 3 disposed above the rear end of the front body 1, wherein the left and right sides of the backrest 3 are provided with symmetrical side-tipping plates 4; a rear chair body 5 is arranged at the rear side of the front chair body 1, and the front chair body 1 is connected with the rear chair body 5 through a spacing bracket 6; the upper surface of the front chair body 1 is provided with a front seat board 7; the left side and the right side of the front seat plate 7 are provided with first baffles 8 which are symmetrical to each other; the left side and the right side of the front end of the front chair body 1 are provided with first turnover devices; the front chair body 1 is connected with a foot rest plate 9 through a first turnover device; an ejection device is arranged in the front chair body 1, and one end of the ejection device is connected to the foot rest plate 9; the left side and the right side of the foot rest plate 9 are provided with second baffles 10 which are symmetrical to each other; the upper surface of the rear chair body 5 is provided with a rear seat board 11; auxiliary plates 12 which are symmetrical to each other are arranged on the left side and the right side of the rear seat plate 11; the rear end of the rear seat plate 11 is provided with a back plate 13; the front seat board 7 and the first baffle plate 8, the front seat board 7 and the backrest 3, the footrest 9 and the second baffle plate 10, the lower end of the footrest 9 and the rear end of the pedal 2, the rear seat board 11 and the auxiliary board 12, and the rear seat board 11 and the backrest 13 are connected through a positioning device; limiting devices are arranged on the backrest 3, the pedal 2, the first baffle plate 8, the second baffle plate 10, the auxiliary plate 12 and the backrest plate 13; the left side and the right side of the lower surface of the front chair body 1 and the left side and the right side of the lower surface of the rear chair body 5 are respectively provided with a moving device which are symmetrical to each other; one side of the rear chair body 5 is provided with an electric switch.

The first turnover device comprises a first fixed guide bar 14 fixed in the front chair body 1; the left side and the right side of the front end of the front chair body 1 are provided with first telescopic holes 15 corresponding to the positions of the first fixed guide bars 14; one end of the first fixed guide bar 14 penetrates out of the first telescopic hole 15; the left side and the right side of the foot backup plate 9 are provided with first movable guide bars 16 corresponding to the first fixed guide bars 14, and the first movable guide bars 16 and the first fixed guide bars 14 are both arc-shaped; a first sliding rail 17 is arranged on one side of the first movable guide strip 16, and a first sliding groove 18 matched with the first sliding rail 17 is arranged on one side of the first fixed guide strip 14 opposite to the first sliding rail 17; a first sliding rod 19 is arranged at one end of the first sliding rail 17, which is adjacent to the first telescopic hole 15; the first fixed guide bar 14 is provided with a first strip-shaped sliding hole 20 communicated with the first sliding chute 18, the first strip-shaped sliding hole 20 is arc-shaped, and the first sliding rod 19 is clamped in the first strip-shaped sliding hole 20; first clamping grooves 21 which are symmetrical to each other are arranged on two sides of the first slide rail 17; the first clamping strips 22 matched with the first clamping grooves 21 extend inwards from the edges of the two sides of the notch of the first sliding chute 18; the ejection device comprises a first cylinder 23 arranged in the front chair body 1; the middle part of the front end of the front chair body 1 is provided with a first movable hole 24 communicated with the inner space of the front chair body; one end of a piston rod 2301 of the first air cylinder 23 penetrates out of the first movable hole 24 and is hinged with a T-shaped first sliding block 25; the footrest plate 9 is provided with a first extending groove 26 corresponding to the first slide block 25, and the cross section of the first extending groove 26 is T-shaped.

The positioning device comprises a rotating shaft 27, the rotating shaft 27 is arranged on the left side and the right side of the backrest 3, the left side and the right side of the rear end of the front seat plate 7, the front side and the rear side of the left end and the right end of the front seat plate 7, the upper side and the lower side of the left end and the right end of the foot rest plate 9, the left side and the right side of the lower end of the foot rest plate 9, the front side and the rear side of the left; the side turning plate 4, the backrest 3, the first baffle plate 8, the second baffle plate 10, the pedal 2, the auxiliary plate 12 and the backrest plate 13 are all provided with a rotating hole 28 matched with the rotating shaft; a torsion spring 29 is sleeved outside the rotating shaft 27; one end of the torsion spring 29 is fixed on the rotating shaft 27, and the other end of the torsion spring 29 is fixed in the rotating hole 28.

The limiting device comprises an inserting plate 30, one end of the inserting plate 30 is provided with a limiting plug 31, and the other end of the inserting plate 30 is provided with an elastic sheet 32 in an isosceles trapezoid shape; the outer walls of the side turning plate 4, the backrest 3, the pedal 2, the first baffle plate 8, the second baffle plate 10, the auxiliary plate 12 and the backrest plate 13 are all provided with a hand-pulled groove 33 matched with the inserting plate 30; a reset cavity 34 communicated with the hand-pulled groove 33 is formed in each of the side turning plate 4, the backrest 3, the pedal 2, the first baffle plate 8, the second baffle plate 10, the auxiliary plate 12 and the backrest plate 13, the width of the reset cavity 34 is larger than that of the hand-pulled groove 33, and the elastic sheet 32 is embedded in the reset cavity 34; the backrest 3, the front seat plate 7, the foot backup plate 9 and the rear seat plate 11 are all provided with limit holes 35 matched with the limit plugs 31; the end face of one end of the side turning plate 4, the backrest 3, the pedal 2, the first baffle plate 8, the second baffle plate 10, the auxiliary plate 12, the backrest plate 13 opposite to the position of the limiting hole 35 is provided with a moving hole 36 communicated with the hand-pulled groove 33, and the limiting plug 31 penetrates through the moving hole 36.

The insertion plate 30 is provided with a force application opening 37.

The moving device comprises a lifting cylinder 38 arranged on the lower surfaces of the front chair body 1 and the rear chair body 5; the lower end of a piston rod 3801 of the lifting cylinder 38 is provided with a steering motor 39; a motor shaft of the steering motor 39 is connected with a steering head 40; a fixed seat 41 is fixed on the outer side of the steering head 40; a driving motor 42 is arranged outside the fixed seat 41; a motor shaft of the driving motor 42 is connected with a driving gear 43; the fixed seat 41 is connected with a support plate 44; a fixed shaft 45 is arranged on the outer sides of the front end and the rear end of the support plate 44; the fixed shaft 45 is provided with a driven rotating wheel 46 matched with the fixed shaft, the driven rotating wheel 46 is provided with a latch 47 meshed with the driving gear 43, and the driven rotating wheels 46 at the front side and the rear side are connected through a crawler belt 48; the drive gear 43 is located between the front and rear driven pulleys 46.

A fixed frame 49 is arranged outside the lifting cylinder 38 arranged on the lower surface of the rear chair body 5; a foot pedal 50 is arranged above the fixed frame 49.

The left side and the right side of the front end of the front chair body 1 are provided with second turnover devices which are symmetrical to each other; the second turnover device comprises a second fixed guide bar 53 arranged in the front part of the front chair body 1; the left side and the right side of the upper surface of the front end of the front chair body 1 are provided with second telescopic holes 52 corresponding to the positions of the second fixed guide bars 53; one end of the second fixed guide bar penetrates out of the second telescopic hole 52; the left side and the right side of the front part of the front seat plate 7 are provided with second movable guide bars 51 corresponding to the positions of the second fixed guide bars 53, and the second fixed guide bars 53 and the second movable guide bars 51 are both arc-shaped; a second slide rail 54 is arranged on one side of the second fixed guide bar 53, and a second slide groove 55 matched with the second slide rail 54 is arranged on the opposite side of the second movable guide bar 51 and the second slide rail 54; a second sliding rod 56 is arranged at one end of the second sliding rail 54 adjacent to the second telescopic hole 52; a second strip-shaped sliding hole 57 communicated with the second sliding groove 55 is formed in the second movable guide strip 51, the second strip-shaped sliding hole 57 is arc-shaped, and the second sliding rod 56 is clamped in the second strip-shaped sliding hole 57; two sides of the second slide rail 54 are provided with second clamping grooves 58 which are symmetrical to each other; the edges of the two sides of the notch of the second sliding chute 55 extend inwards to form a second clamping strip 59 matched with the second clamping groove 58; the upper surface of the front chair body 1 is provided with a first accommodating groove 60; a turning motor 61 is arranged in the rear end of the first accommodating groove 60; a motor shaft of the overturning motor 61 is connected with a second air cylinder 62; a second accommodating groove 63 corresponding to the first accommodating groove 60 is arranged on the side wall of the front seat plate 7 opposite to the front seat body 1; a second extending groove 64 with a T-shaped cross section is arranged in the second accommodating groove 63; the end of the piston rod 6201 of the second cylinder 62 is hinged with a second sliding block 65 matched with the second stretching groove 64, and the second sliding block 65 is in a T shape.

The rear chair body 5 is provided with a displacement hole 66 penetrating through the rear chair body; the rear end of the spacer bracket 6 passes rearwardly through the displacement hole 66 and is provided with a stopper.

The using method of the invention is as follows:

when the wheelchair is normally used, a patient can sit on the front seat board 7, the existence of the backrest 3 can form a leaning on the back of the patient, so that the patient can lean back, the feet of the patient can be placed on the pedal 2 to reduce the pressure of the feet, the second baffle plates 10 arranged on the left side and the right side of the foot rest board 9 can surround and protect the feet to prevent the feet of the patient from being knocked by things on the sides, the first baffle plates 8 are erected on the left side and the right side of the front seat board 7, so that the hands of the patient can be placed on the upper end surface of the first baffle plate 8 and can also be supported on the first baffle plate 8, family members accompanying the body of the patient can sit on the back seat board 11, the two legs can be placed on the left side and the right side of the back seat board 11, the two feet can be placed on the foot boards 50 to obtain supporting points, the pressure of the two feet can be released, and the existence of the back rest board 13 can lean on the back of the family members sitting on the back seat board 11, avoiding the situation of body ache caused by long-term sitting straight, at the moment, the patient sitting on the front seat plate 7 and the family sitting on the back seat plate 11 actually sit on the same wheelchair.

When the family members need to move the patient, the driving motor 42 can be started through the electric switch, when the driving motor 42 runs, the motor shaft of the driving motor 42 can drive the driving gear 43 to rotate, because the driving gear 43 is meshed with the latch 47 on the driven rotating wheel 46, when the driving gear 43 rotates, the driving gear 43 can drive the driven rotating wheel 46 to rotate, the driven rotating wheels 46 are positioned at the front side and the rear side of the driving gear 43, the position distribution can effectively ensure that the rotating directions of the driven rotating wheels 46 at the front side and the rear side are consistent under the driving of the driving gear 43, the driven rotating wheels 46 are connected through the crawler belt 48, when the driven rotating wheel 46 rotates, the crawler belt 48 rotates along with the driving gear, the crawler belt 48 contacts with the ground through the crawler belt, reaction force can be generated on the ground, so that the crawler belt 48 advances, at the moment, the whole wheelchair starts to move forwards, only the driving motor 42 needs to be controlled to drive the driving gear 43 to rotate reversely, if the wheelchair needs to turn during the forward process, the motor shaft of the steering motor 39 can be controlled to drive the steering head 40 to rotate, the steering head 40 is provided with the fixed seat 41, the driving motor 42 and the support plate 44 are fixed with the fixed seat 41, and when the steering head 40 turns, finally the crawler belt 48 also turns, so that the steering action of the wheelchair is realized.

In the whole moving process of the wheelchair, a patient sits on the front seat board 7 of the wheelchair, family members also sit on the rear seat board 11 of the wheelchair, accompanying by walking of the family members is not needed in the whole moving process, the condition that the body of the patient is tired due to long-term walking of the family members is effectively avoided, accompanying by the family members is facilitated, the rear seat board 11 is arranged behind the front seat board 7, the family members sitting on the wheelchair are always positioned behind the patient, one action of the patient can be accurately attended, the condition that the patient has accidents in the moving process is effectively avoided, when the movement needs to be stopped, only the driving motor needs to be closed, the rear seat body 5 is provided with the displacement holes 66 penetrating through the rear seat body, if the family members sit on the rear seat board 11 and find that the distance between the family members and the front patient is too far away to attend to, the moving devices on the left side and the right side of the rear side can be independently started, the moving devices on the left side and the right side of the rear side can drive, the rear chair body 5 moves forwards along the track of the spacing support 6, the rear seat board 11 moves forwards along the track, family members are close to a patient, in the actual use process, the family members can preferentially adjust the distance between the front seat board 7 and the rear seat board 11, the patient can be conveniently cared, the rear end of the spacing support 6 backwards penetrates through the displacement hole 66 and is provided with a stop block, and the rear chair body 5 can be prevented from falling off from the spacing support 6 due to the stop block.

When a patient sitting on the wheelchair needs to lie on the bed for rest, the family members can firstly get down from the back seat plate 11 of the wheelchair, then directly turn over the back support plate 13 and the auxiliary plate 12 to be in the same plane state with the back seat plate 11, then utilize the limiting devices to finish the fixation among the back seat plate 11, the back support plate 13 and the auxiliary plate 12, after finishing the deformation behind the wheelchair, the family members can firstly remind the patient that the body of the patient leans forward, after the reminding, the family members can directly turn over the backrest 3 and the first baffle plate 8 downwards, when the backrest 3, the first baffle plate 8 and the front seat plate 7 are in the same plane, the positions of the backrest 3 and the first baffle plate 8 can be fixed through the limiting devices, then the patient can slowly fall backwards, the waist of the lying patient is just positioned on the flattened backrest 3, the upper body is positioned on the back seat plate 11, and the head is just positioned on the flattened back support plate 13, then, the first cylinder 23 can be started, at this time, the piston rod 2301 of the first cylinder 23 is ejected forwards, because one end of the piston rod 2301 of the first cylinder 23 penetrates out of the first movable hole 24 and is hinged with a T-shaped first sliding block 25, the foot rest plate 9 is provided with a first extending groove 26 corresponding to the first sliding block 25, the cross section of the first extending groove 26 is T-shaped, when the piston rod 2301 of the first cylinder 23 is ejected forwards continuously, the first sliding block 25 can move along the track of the first extending groove 26, and the foot rest plate 9 is pushed upwards gradually under the ejection of the piston rod 2301 of the first cylinder 23, during the upward overturning process of the foot rest plate 9, the first fixed guide strip 14 and the first movable guide strip 16 are always matched to guide the foot rest plate 9, so as to ensure the stability during the overturning of the foot rest plate 9, until the foot rest plate 9 is overturned to be in the same plane position as the front seat plate 7, when the first cylinder 23 stops operating, the footrest 9 is automatically fixed, after the position of the footrest 9 is fixed, the second baffle 10 and the pedal 2 can be turned downwards, so that the second baffle 10 and the pedal 2 are in the same plane with the front seat plate 7 like the footrest 9, and finally the side turning plate 4 can be turned outwards, so that the side turning plate 4 and the flat backrest 3 are in the same plane, and the fixation of the second baffle 10, the pedal 2 and the side turning plate 4 can be realized by the limiting devices.

If a patient needs to lie on the bed for rest, even if no other person is beside the patient, the patient can easily finish the deformation work of the wheelchair by himself, the patient can firstly turn over the pedal 2 and the second baffle plate 10, then turn over the first baffle plate 8, then stretch the hands to the rear side, turn over the backrest 3 downwards, after the backrest 3 is also turned over, the patient can slowly lie backwards, the lying patient can touch the backrest plate 13 to reach and immediately turn over the backrest plate 13, after the backrest plate 13 is turned over, then place the hands on the left side and the right side to turn over the auxiliary plate 12 upwards, finally the patient can start the first air cylinder 23 through the electric switch, so that the piston rod 2301 of the first air cylinder 23 pushes the foot rest plate 9, finally, the turning over action of the foot rest plate 9 is finished, at the moment, the wheelchair becomes a bed completely, the patient can directly lie on the bed for rest, the first baffle plate 8, the second baffle plate 10 and the first baffle plate 8 are arranged on the first baffle plate and can be turned over the second, Second baffle 10, side turning plate 4, the area of bed can effectively be increased in the existence of accessory plate 12, make the patient can overturn by a wide margin, do benefit to the patient's rest, the transfer process of patient from wheelchair to bed has effectively been avoided to this kind of deformation mode, when the patient need lie the bed and take a rest, be in the wheelchair all the time practically, effectively avoided the patient to shift the condition that easily leads to meeting accident, and this kind of wheelchair deformation mode makes the patient can independently realize the rest of self, need not to bother other people.

Because the lifting cylinder 38 is fixed on the front body 1 and the rear body 5, and the end of the piston rod 3801 of the lifting cylinder 38 is provided with the steering head 40, when the piston rod 3801 of the lifting cylinder 38 is ejected outwards, the vertical distance between the ground and the front body 1 and the rear body 5 can be increased, so that the positions of the front seat plate 7 and the rear seat plate 11 are raised, when the piston rod 3801 of the lifting cylinder 38 is retracted into the lifting cylinder 38, the vertical distance between the ground and the front body 1 and the rear body 5 can be reduced, so that the heights of the front seat plate 7 and the rear seat plate 11 are reduced, when the wheelchair is converted into a bed, the height of the front seat plate 7 and the rear seat plate 11 can be reduced, when the patient is transferred onto the bed, because the bed is not high, the family can easily move the patient onto the bed, the transfer process is effectively simplified and the transfer difficulty is reduced, if the patient is transferred onto another bed from the bed, the height of the front seat board 7 and the rear seat board 11 can be lifted, so that the bed surface of the bed converted from the wheelchair and the bed surfaces of other beds are positioned on the same plane, and the patient can be conveniently transferred.

When the limiting device is needed to limit, the inserting plate 30 can be buckled by hand firstly, then the inserting plate 30 is pulled towards the elastic sheet 32, the force application opening 37 is formed to enable the hand to be placed easily, the force application of the inserting plate 30 is convenient, when the inserting plate moves towards the elastic sheet 32, the elastic sheet 32 is compressed and generates elastic force, the limiting plug 31 starts to retract into the moving hole 36, after the part arranged in the limiting device is turned over, the moving hole 36 is opposite to the limiting hole 35 and is distributed, the inserting plate 30 can be loosened at the moment, the inserting plate 30 can move towards the moving hole 36 under the elastic force of the elastic sheet 32, the limiting plug 31 in the moving hole 36 penetrates through the moving hole 36 and is inserted into the limiting hole 35, the fixing between the part provided with the limiting device and the part provided with the limiting hole 35 is completed, when the bed needs to be changed back to a wheelchair, the limiting plug 31 is pulled out of the limiting hole 35, the torsional spring 29 which is originally twisted when the component is turned over can generate elasticity to automatically help the component to reset, so that the effect of elastic positioning is realized.

Because the patient is inconvenient to move, under normal conditions, if the patient needs to be moved down from the wheelchair, the patient needs to be moved by directly extending hands between the body of the patient and the gap of the wheelchair, which is difficult and troublesome to apply force, the turning motor 61 can be started, when the motor shaft of the turning motor 61 drives the second cylinder 62 to rotate, the front seat plate 7 can be turned over under the guiding action of the second movable guide bar 51 and the second fixed guide bar 53 along with the sliding of the second sliding block 65 along the track of the second extending groove 64, the front seat plate 7 can be turned upwards to a certain angle, at the moment, the family can stand at the front side of the front seat plate 7, the two shoulders of the patient can easily hold the shoulders of the family, then the second cylinder 62 is started, when the piston rod 6201 of the second cylinder 62 is ejected outwards, the front seat plate 7 can push the patient sitting above the front seat plate 7 to the family direction at the front side, the family members just need to squat slightly, and the patient can easily lean on the backs of the family members to complete the self transfer without the need of the family members to difficultly embrace; and when the patient acts on alone, the fore-seat board 7 of perk upwards can play the help and play a role, make the patient can pass through self from the wheelchair on quick and light shift to other regions to can utilize fore-seat board 7 upwarp alone and fall back effectively to take exercise the patient's knee joint, play supplementary recovered effect, if cooperate the backup plate 9 upwards overturn and fall back, can make the shank obtain effectively taking exercise simultaneously, accelerate patient's recovered speed.

Claims

1. The utility model provides a wheelchair warp with it is multi-functional, includes preceding chair body, locates the footboard of preceding chair body front side and locate the back of preceding chair body rear end top, its characterized in that: the left side and the right side of the backrest are provided with side turning plates which are mutually symmetrical; a rear chair body is arranged at the rear side of the front chair body, and the front chair body is connected with the rear chair body through a spacing bracket; the upper surface of the front chair body is provided with a front seat board; the left side and the right side of the front seat plate are provided with first baffles which are symmetrical to each other; the left side and the right side of the front end of the front chair body are provided with first turnover devices; the front chair body is connected with a foot rest plate through a first turnover device; the front chair body is internally provided with an ejection device, and one end of the ejection device is connected to the foot rest plate; the left side and the right side of the foot rest plate are provided with second baffle plates which are mutually symmetrical; the upper surface of the rear chair body is provided with a rear seat board; auxiliary plates which are symmetrical to each other are arranged on the left side and the right side of the rear seat plate; a back plate is arranged at the rear end of the rear seat plate; the front seat plate and the first baffle plate, the front seat plate and the backrest, the foot rest plate and the second baffle plate, the lower end of the foot rest plate and the rear end of the pedal, the rear seat plate and the auxiliary plate, and the rear seat plate and the backrest plate are connected through a positioning device; the backrest, the pedal, the first baffle, the second baffle, the auxiliary plate and the backrest plate are all provided with a limiting device; the left side and the right side of the lower surface of the front chair body and the left side and the right side of the lower surface of the rear chair body are respectively provided with a moving device which are mutually symmetrical; one side of the rear chair body is provided with an electric switch; the first turnover device comprises a first fixed guide bar fixed in the front chair body; the left side and the right side of the front end of the front chair body are provided with first telescopic holes corresponding to the first fixed guide bar; one end of the first fixed guide bar penetrates out of the first telescopic hole; the left side and the right side of the foot rest plate are provided with first movable guide bars corresponding to the first fixed guide bars in position, and the first movable guide bars and the first fixed guide bars are both arc-shaped; a first sliding rail is arranged on one side of the first movable guide strip, and a first sliding groove matched with the first sliding rail is arranged on one side, opposite to the first sliding rail, of the first fixed guide strip; a first sliding rod is arranged at one end, adjacent to the first telescopic hole, of the first sliding rail; the first fixed guide bar is provided with a first strip-shaped sliding hole communicated with the first sliding chute, the first strip-shaped sliding hole is arc-shaped, and the first sliding rod is clamped in the first strip-shaped sliding hole; first clamping grooves which are symmetrical to each other are formed in two sides of the first sliding rail; a first clamping strip matched with the first clamping groove extends inwards from the edges of the two sides of the notch of the first sliding groove; the ejection device comprises a first cylinder arranged in the front chair body; the middle part of the front end of the front chair body is provided with a first movable hole communicated with the inner space of the front chair body; one end of a piston rod of the first air cylinder penetrates out of the first movable hole and is hinged with a T-shaped first sliding block; the foot rest plate is provided with a first extending groove matched with the first sliding block, and the cross section of the first extending groove is T-shaped.

2. The multifunctional wheelchair as claimed in claim 1, wherein: the positioning device comprises a rotating shaft, the rotating shaft is arranged on the left side and the right side of the backrest, the left side and the right side of the rear end of the front seat plate, the front side and the rear side of the left end and the right end of the front seat plate, the upper side and the lower side of the left end and the right end of the foot rest plate, the left side and the right side of the lower end of the foot rest plate, the front side and the rear side of the left; the side turning plate, the backrest, the first baffle, the second baffle, the pedal, the auxiliary plate and the backrest plate are all provided with rotating holes matched with the rotating shaft; a torsion spring is sleeved outside the rotating shaft; one end of the torsion spring is fixed on the rotating shaft, and the other end of the torsion spring is fixed in the rotating hole.

3. The multifunctional wheelchair as claimed in claim 1, wherein: the limiting device comprises a plug board, one end of the plug board is provided with a limiting plug, and the other end of the plug board is provided with an isosceles trapezoid-shaped elastic sheet; the outer walls of the side turning plate, the backrest, the pedal, the first baffle, the second baffle, the auxiliary plate and the backrest plate are all provided with hand pulling grooves matched with the inserting plates; the side turning plate, the backrest, the pedal, the first baffle plate, the second baffle plate, the auxiliary plate and the backrest plate are all internally provided with a resetting cavity communicated with the hand pulling groove, the width of the resetting cavity is greater than that of the hand pulling groove, and the elastic sheet is embedded in the resetting cavity; the backrest, the front seat plate, the foot rest plate and the rear seat plate are all provided with limit holes matched with the limit plugs; the side turning plate, the backrest, the pedal, the first baffle, the second baffle, the auxiliary plate, the end face of one end, opposite to the limiting hole, of the backrest plate are provided with a moving hole communicated with the hand pulling groove, and the limiting plug penetrates through the moving hole.

4. The multifunctional wheelchair as claimed in claim 3, wherein: the inserting plate is provided with a force application opening.

5. The multifunctional wheelchair as claimed in claim 1, wherein: the moving device comprises lifting cylinders arranged on the lower surfaces of the front chair body and the rear chair body; the lower end of a piston rod of the lifting cylinder is provided with a steering motor; a motor shaft of the steering motor is connected with a steering head; a fixed seat is fixed on the outer side of the steering head; a driving motor is arranged outside the fixed seat; a motor shaft of the driving motor is connected with a driving gear; the fixed seat is connected with a support plate; a fixed shaft is arranged on the outer sides of the front end and the rear end of the support plate; the fixed shaft is provided with a driven rotating wheel matched with the fixed shaft, the driven rotating wheel is provided with a latch meshed with the driving gear, and the driven rotating wheels on the front side and the rear side are connected through a crawler; the driving gear is arranged between the driven rotating wheels at the front side and the rear side.

6. The multifunctional wheelchair as claimed in claim 5, wherein: a fixed frame is arranged on the outer side of the lifting cylinder arranged on the lower surface of the rear chair body; a foot stepping plate is arranged above the fixing frame.

7. The multifunctional wheelchair as claimed in claim 1, wherein: the left side and the right side of the front end of the front chair body are provided with second turnover devices which are symmetrical to each other; the second turnover device comprises a second fixed guide bar arranged in the front part of the front chair body; the left side and the right side of the upper surface of the front end of the front chair body are provided with second telescopic holes corresponding to the positions of the second fixed guide bars; one end of the second fixed guide bar penetrates out of the second telescopic hole; the left side and the right side of the front seat plate are provided with second movable guide bars corresponding to the second fixed guide bars in position, and the second fixed guide bars and the second movable guide bars are both arc-shaped; a second sliding rail is arranged on one side of the second fixed guide strip, and a second sliding groove matched with the second sliding rail is arranged on the side, opposite to the second sliding rail, of the second movable guide strip; a second sliding rod is arranged at one end, adjacent to the second telescopic hole, of the second sliding rail; the second movable guide bar is provided with a second strip-shaped sliding hole communicated with the second sliding chute, the second strip-shaped sliding hole is arc-shaped, and the second sliding rod is clamped in the second strip-shaped sliding hole; two sides of the second slide rail are provided with second clamping grooves which are mutually symmetrical; a second clamping strip matched with the second clamping groove extends inwards from the edges of the two sides of the notch of the second sliding groove; the upper surface of the front chair body is provided with a first accommodating groove; a turning motor is arranged in the rear end of the first accommodating groove; a motor shaft of the overturning motor is connected with a second cylinder; a second accommodating groove corresponding to the first accommodating groove in position is formed in the side wall of the front seat plate, opposite to the front seat body; a second stretching groove with a T-shaped cross section is arranged in the second accommodating groove; the end part of a piston rod of the second cylinder is hinged with a second sliding block matched with the second extension groove, and the second sliding block is T-shaped.

8. The multifunctional wheelchair as claimed in claim 1, wherein: the rear chair body is provided with a displacement hole penetrating through the rear chair body; the rear end of the spacing bracket passes through the displacement hole backwards and is provided with a stop block.