Wheelchair with rehabilitation function
By integrating articulation and adjustment devices on the wheelchair and combining a linear module to realize the movement of the leg rehabilitation bracket, the problems of insufficient rehabilitation functions and safety hazards of traditional wheelchairs are solved, and the rehabilitation in the wheelchair is achieved and the cost is reduced. Effect.
Patent Information
- Application Number
- CN202411312782.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2024-12-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional wheelchairs lack rehabilitation functions. Rehabilitation personnel have safety risks when moving and need to rely on others or specialized equipment, resulting in high rehabilitation costs and cumbersome process.
A wheelchair with rehabilitation function was designed, equipped with seat plate, back-to-back plate, leg-to-back plate and head-to-back plate. Through hinging and adjustment devices, it realizes automatic adjustment of handrails, back-to-back plate and leg-to-back plate, combined with a linear module The activity of the leg rehabilitation bracket reduces dependence on others and the use of specialized equipment.
The wheelchair can complete rehabilitation activities in a wheelchair, reducing rehabilitation costs, avoiding the hassle of moving from the wheelchair to the physiotherapy bed, and lifting the upper body of the rehabilitation personnel through automatic adjustment devices, reducing the risk of falling and improving safety .
Smart Images
Figure CN119112522A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a wheelchair, in particular to a wheelchair with rehabilitation function. Background Art
[0002] Most people who use wheelchairs have difficulty in moving their legs and feet, and some leg and foot problems require rehabilitation after recovery. During the initial rehabilitation, the rehabilitation personnel cannot move their legs and feet by themselves, and can only rely on external force and others to move their legs and feet, or go to a special rehabilitation place and use rehabilitation equipment to move their legs and feet. If they rely on others to move the rehabilitation personnel, they will be too dependent on the help of others, occupy other people's time, and cause a lot of trouble. If they go to a special rehabilitation place every time for rehabilitation, not only will the overall rehabilitation process become extremely troublesome and require a lot of time, but each use of the rehabilitation equipment will cost a lot of money, resulting in high rehabilitation costs.
[0003] Traditional wheelchairs only have the function of transportation and cannot play any role in rehabilitation. In addition, during the rehabilitation process, the rehabilitation personnel who were originally sitting in the wheelchair often need to move to a reclining or semi-reclining physiotherapy bed. If the rehabilitation personnel rely solely on themselves to move, they can only support themselves with their hands on the armrests of the wheelchair, and then use their hands to support the whole person from the wheelchair, which makes the whole moving process more difficult. The rehabilitation personnel are very likely to fall when moving their own bodies, which poses certain safety hazards. Summary of the invention
[0004] The present invention aims to solve the existing technical problem by providing a wheelchair with rehabilitation function. The wheelchair not only has the rehabilitation function, but also plays an auxiliary supporting role when the rehabilitation personnel need to leave the wheelchair, thereby preventing the rehabilitation personnel from relying on only their hands to support the weight of the entire body, resulting in temporary instability and falling, and effectively eliminating safety hazards.
[0005] The technical solution adopted by the present invention to solve the above technical problems is:
[0006] The present invention discloses a wheelchair with rehabilitation function, comprising a seat plate, a backrest plate, a legrest plate and a headrest plate, wherein a shifting device is provided below the seat plate, and armrest seats symmetrical to each other are provided on the left and right sides of the seat plate; an armrest folding device is provided on the armrest seats; a front hinge shaft is provided between the front ends of the armrest seats on the left and right sides, and a rear hinge shaft is provided between the rear ends of the armrest seats on the left and right sides; the lower end of the backrest plate is hinged to the rear hinge shaft; the lower end of the headrest plate is hinged to the upper end of the backrest plate; the upper end of the legrest plate and the front end of the seat plate are hinged to the upper end of the backrest plate; The end is hinged on the front hinge shaft; there is a base under the seat plate; a main hinge seat is provided above the base; a seat plate adjustment device matching the seat plate is provided on the main hinge seat; the main hinge seat is connected to the leg rest plate by a leg rest plate adjustment device; the main hinge seat is connected to the back rest plate by a back rest plate adjustment device; the back rest plate and the head rest plate are connected by a head rest plate adjustment device; a rehabilitation device is provided on the front side of the leg rest plate, which can move the legs and feet.
[0007] The armrest folding device includes a storage groove arranged on the upper surface of the armrest seat; a folding motor mounting groove is provided at the lower part of the groove wall on the rear side of the storage groove; a folding motor matching it is provided in the folding motor mounting groove; the motor shaft of the folding motor is connected to a screw rod through a first coupling; a first axial hole matching the front end of the screw rod is provided at the lower part of the groove wall on the front side of the storage groove; a moving part is provided in the storage groove; a screw hole is provided on the moving part, and the screw rod is screwed into the screw hole; a first folding arm is hinged at the upper end of the moving part; an armrest is provided directly above the armrest seat; the upper end of the first folding arm passes upward out of the storage groove and is hinged to the front end of the armrest; a second folding arm is hinged to the side wall on the side of the rear end of the armrest away from the seat plate; a front hinge groove which is connected to the storage groove is provided on the upper surface of the front end of the armrest seat; the lower end of the second folding arm is hinged in the front hinge groove.
[0008] The displacement device comprises a support column arranged at the center of the lower surface of the base; a limit cover is arranged at the lower end of the support column; a limit groove is arranged in the limit cover, and the notch of the limit groove faces downward; the limit groove is hemispherical; a main sphere is arranged below the limit cover, and the upper end of the main sphere is located in the limit groove; a plurality of limit claws are arranged on the edge of the lower surface of the limit cover in a circumferentially uniform distribution, and the plurality of limit claws enclose the main sphere; a steering motor is arranged at the lower end of the limit claw; the motor shaft of the steering motor is provided with A driving wheel fitted with the lower outer wall of the main sphere; the upper outer wall of the support column is provided with a plurality of fixing seats evenly distributed in a circle; the fixing seat is hinged with a shock absorber matched therewith; the lower end of the shock absorber is inclined in a direction away from the main sphere, and a positioning cover is hinged at the lower end of the shock absorber; the outer wall of the lower surface of the positioning cover is provided with a plurality of positioning claws evenly distributed in a circle; a secondary sphere is arranged in the space enclosed by the plurality of positioning claws and the inner wall of the positioning cover; the lower end of the positioning claw is lower than the middle of the secondary sphere.
[0009] The inner walls of the positioning claw and the positioning cover, the limiting groove and the inner walls of the limiting claw are all provided with a plurality of evenly distributed spherical grooves; the spherical groove is provided with a matching ball; one end of the ball protrudes out of the spherical groove and fits with the outer wall of the auxiliary sphere.
[0010] The seat plate adjustment device includes hinge ports arranged on the left and right sides of the main hinge seat; a lower hinge shaft is arranged in the hinge port; lower hinge grooves corresponding to the positions of the hinge ports are arranged on the left and right sides of the rear side of the lower surface of the seat plate; an upper hinge shaft is arranged in the lower hinge groove; a tilted cylinder is provided between the lower hinge groove and the hinge port; the upper end of the tilted cylinder is inclined forward; a lower hinge head hinged to the lower hinge shaft is arranged at the lower end of the tilted cylinder; a pushing piece is arranged at the upper end of the piston rod of the tilted cylinder; an upper hinge head hinged to the upper hinge shaft is arranged on the upper surface of the pushing piece.
[0011] The leg support plate adjustment device includes a first swing opening arranged on the front side of the middle part of the main hinge seat; the inner walls on the left and right sides of the first swing opening are provided with second axial holes symmetrical to each other; a first swing arm is provided between the main hinge seat and the leg support plate; a rotating shaft matching the second axial hole is provided on the left and right sides of the rear end of the first swing arm; a first motor mounting slot is provided at the bottom of the second axial hole; a first motor matching it is provided in the first motor mounting slot; a first meshing slot is provided at the center of the end face of the rotating shaft opposite to the bottom of the second axial hole; a plurality of first meshing teeth uniformly distributed in a circumference are provided in the first meshing slot; a first transmission gear meshing with the first meshing teeth is provided at the end of the motor shaft of the first motor; a slideway is provided in the middle part of the leg support plate; a slideway intersecting the slideway is provided on the rear side wall of the middle part of the leg support plate; a sliding member matching it is provided in the slideway; a first secondary hinge seat is provided on the rear side wall of the sliding member; the rear end of the first secondary hinge seat passes backwards out of the slideway and is hinged to the front end of the first swing arm; the front end of the first swing arm is inclined downward.
[0012] The backrest plate adjustment device includes a second secondary hinge seat arranged on the left and right sides of the rear side wall of the backrest plate; a second swinging opening corresponding to the position of the second secondary hinge seat is arranged on the left and right sides of the rear side wall of the main hinge seat; a second swing arm is arranged between the second secondary hinge seat and the second swinging opening; a second hinge shaft is arranged at the rear end of the second secondary hinge seat; the upper end of the second swing arm is hinged on the second hinge shaft; the lower end of the second swing arm is located in the second swinging opening; a second motor mounting groove is arranged on the side wall of the second swinging opening away from the center of the main hinge seat; a second motor matching with it is arranged in the second motor mounting groove; a second meshing groove is arranged on the side wall of the lower end of the second swing arm opposite to the second motor mounting groove; a plurality of second meshing teeth uniformly distributed on the circumference are arranged in the second meshing groove; a second transmission gear meshing with the second meshing teeth is arranged at the end of the motor shaft of the second motor; a positioning hole is arranged on the side wall of the lower end of the second swing arm adjacent to the center of the main hinge seat, and a positioning shaft matching with the positioning hole is arranged on the inner wall of the second swinging opening.
[0013] The headrest adjustment device includes a third sub-hinge seat arranged in the middle of the side wall on the rear side of the headrest plate; the third sub-hinge seat is hinged with symmetrical adapters on the left and right sides; the adapter is hinged with a third swing arm; the lower end of the third swing arm is inclined forward and hinged on the second hinge shaft; the side wall on the side opposite to the second sub-hinge seat at the lower end of the third swing arm is provided with a third axial hole matching the second hinge shaft; the side wall on the side adjacent to the center of the backrest plate at the lower end of the third swing arm is provided with a third meshing groove; the inner wall of the third meshing groove is provided with a plurality of third meshing teeth evenly distributed in a circumference; the side wall on the rear side of the backrest plate is provided with a third motor mounting seat adjacent to the lower end of the third swing arm; the third motor mounting seat is provided with a third motor matching it; the motor shaft end of the third motor is provided with a third transmission gear meshing with the third meshing teeth.
[0014] The adapter comprises a first hinged portion hinged on a third auxiliary hinged seat; a rear end of the first hinged portion extends an extension portion toward the upper end of a third swing arm adjacent thereto; a rear end of the extension portion is provided with a second hinged portion hinged to the upper end of the third swing arm.
[0015] The rehabilitation device comprises a leg rehabilitation bracket arranged on the left and right sides of the front of the leg support board; a foot pedal is arranged at the lower end of the leg rehabilitation bracket; a module placement cavity is arranged on the left and right sides of the inside of the leg support board; a movable groove is arranged on the front side wall of the leg support board on the left and right sides of the module placement cavity; the movable groove is connected with the module placement cavity through a sliding opening; a linear module matching it is arranged in the module placement cavity; support rods are arranged on the upper, lower, left and right sides of the middle part of the leg rehabilitation bracket; the lower end of the support rod has a connecting part arranged on the slider of the linear module, and the connecting part passes through the sliding opening; auxiliary support rods are hinged on the left and right sides of the upper end of the leg rehabilitation bracket; the auxiliary support rods on the left and right sides are connected by a number of evenly distributed support cloths; the upper end of the auxiliary support rod is bent toward the movable groove and hinged with a connecting rod; the upper part of the movable groove is connected with the module placement cavity through an auxiliary opening; a support frame is arranged between the lower end of the connecting rod and the outer wall of the linear module, and the support frame passes through the auxiliary opening.
[0016] The beneficial effects of the present invention are:
[0017] Compared with the prior art, the wheelchair with rehabilitation function using the structure of the present invention can control the reciprocating movement of the leg rehabilitation bracket through the linear module, so that the legs of the rehabilitation personnel on the leg rehabilitation bracket can be constantly moved to achieve rehabilitation. Therefore, the rehabilitation personnel only need to sit in the wheelchair to complete the rehabilitation by themselves, without relying on others for rehabilitation, and without going to a rehabilitation place to use special rehabilitation equipment for rehabilitation, which effectively reduces the trouble of others and reduces the rehabilitation cost. At the same time, the angle of the leg support board can be adjusted by the leg support board adjustment device, the angle of the back support board can be adjusted by the back support board adjustment device, and the head support board can be adjusted by the head support board adjustment device. The adjustment device adjusts the angle of the headrest, so that the wheelchair can be converted into a semi-reclining or flat-lying physiotherapy bed, avoiding the trouble of the rehabilitation person transferring from the wheelchair to the physiotherapy bed during the rehabilitation process. When the rehabilitation person needs to get up and leave the wheelchair, the seat plate can be lifted through the seat plate adjustment device, so that the upper body of the rehabilitation person can be passively moved up, effectively supporting most of the weight of the rehabilitation person. At this time, only a little strength of the hands is needed to completely transfer the body out of the wheelchair, effectively avoiding the situation where the rehabilitation person relies on only the hands to support the weight of the whole body, resulting in temporary instability and falling, and effectively eliminating safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic structural diagram of a wheelchair with rehabilitation function according to the present invention from one angle;
[0019] Figure 2 is a schematic structural diagram of the wheelchair with rehabilitation function of the present invention from another angle;
[0020] Figure 3 is a cross-sectional view of the armrest folding device;
[0021] Figure 4 It is a structural diagram of the armrest seat;
[0022] Figure 5 is a schematic diagram of the structure of the shifting device;
[0023] Figure 6 is a cross-sectional view of a leg support adjustment device;
[0024] Figure 7 is a cross-sectional view of a backrest adjustment device;
[0025] Figure 8 is a cross-sectional view of a headrest adjustment device;
[0026] Fig. 9 It is a schematic diagram of the structure of the adapter;
[0027] Fig.10 is a schematic diagram of the structure of the rehabilitation device;
[0028] Fig.11 It is a partial structural schematic diagram of the rehabilitation device. DETAILED DESCRIPTION
[0029] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:
[0030] See also Figures 1 to 11 The present invention provides a wheelchair with rehabilitation function, comprising a seat plate 8, a backrest plate 9, a legrest plate 10 and a headrest plate 11, wherein a shifting device 1 is provided below the seat plate 8, and armrest seats 12 are symmetrically arranged on the left and right sides of the seat plate 8; an armrest folding device 7 is arranged on the armrest seats 12; a front hinge shaft 13 is arranged between the front ends of the armrest seats 12 on the left and right sides, and a rear hinge shaft 14 is arranged between the rear ends of the armrest seats 12 on the left and right sides; the lower end of the backrest plate 9 is hinged to the rear hinge shaft 14; the lower end of the headrest plate 11 is hinged to the upper end of the backrest plate 9; the upper end of the legrest plate 10 and the seat plate 8 The front end is hinged on the front hinge shaft 13; a base 15 is provided under the seat plate 8; a main hinge seat 16 is provided above the base 15; a seat plate adjustment device 2 matching the seat plate 8 is provided on the main hinge seat 16; the main hinge seat 16 is connected to the leg rest plate 10 via a leg rest plate adjustment device 3; the main hinge seat 16 is connected to the backrest plate 9 via a backrest plate adjustment device 4; the backrest plate 9 is connected to the headrest plate 11 via a headrest plate adjustment device 5; a rehabilitation device 6 is provided on the front side of the leg rest plate 10, and the rehabilitation device 6 can move the legs and feet.
[0031] The armrest folding device 7 includes a storage groove 701 arranged on the upper surface of the armrest seat 12; a folding motor installation groove 702 is provided at the lower part of the rear side groove wall of the storage groove 701; a folding motor 703 matching therewith is provided in the folding motor installation groove 702; the motor shaft of the folding motor 703 is connected to a screw rod 704 through a first coupling; a first shaft hole 705 matching the front end of the screw rod 704 is provided at the lower part of the front side groove wall of the storage groove 701; a moving member 706 is provided in the storage groove 701; a screw hole 706 is provided on the moving member 706 7. The screw rod 704 is screwed into the screw hole 707; the upper end of the movable member 706 is hinged with a first folding arm 708; an armrest 709 is provided just above the armrest seat 12; the upper end of the first folding arm 708 extends upward to the outside of the storage slot 701 and is hinged with the front end of the armrest 709; the rear end of the armrest 709 is hinged with a second folding arm 710 on the side wall away from the seat plate 8; the upper surface of the front end of the armrest seat 12 is provided with a front hinge slot 711 which is connected with the storage slot 701; the lower end of the second folding arm 710 is hinged in the front hinge slot 711.
[0032] The displacement device 1 includes a support column 101 arranged at the center of the lower surface of the base 15; a limit cover 102 is provided at the lower end of the support column 101; a limit groove 103 is provided in the limit cover 102, and the notch of the limit groove 103 faces downward; the limit groove 103 is hemispherical; a main sphere 104 is provided below the limit cover 102, and the upper end of the main sphere 104 is located in the limit groove 103; a plurality of limit claws 105 uniformly distributed on the edge of the lower surface of the limit cover 102 are provided, and the plurality of limit claws 105 enclose the main sphere 104; a steering motor 106 is provided at the lower end of the limit claw 105; the motor of the steering motor 106 The shaft is provided with a driving wheel 107 which fits with the lower outer wall of the main sphere 104; the upper outer wall of the support column 101 is provided with a plurality of fixing seats 108 which are evenly distributed in a circle; the fixing seat 108 is hinged with a shock absorber 109 which matches it; the lower end of the shock absorber 109 is inclined in a direction away from the main sphere 104, and a positioning cover 110 is hinged at the lower end of the shock absorber 109; the outer wall of the lower surface of the positioning cover 110 is provided with a plurality of positioning claws 111 which are evenly distributed in a circle; a secondary sphere 112 is provided in the space enclosed by the plurality of positioning claws 111 and the inner wall of the positioning cover 110; the lower end of the positioning claw 111 is lower than the middle part of the secondary sphere 112.
[0033] The inner walls of the positioning claw 111 and the positioning cover 110 , the inner walls of the limiting groove 103 and the limiting claw 105 are all provided with a plurality of evenly distributed ball grooves 113 ; a matching ball 114 is provided in the ball groove 113 ; one end of the ball 114 protrudes out of the ball groove 113 .
[0034] The seat plate adjustment device 2 includes an articulation port 201 arranged on the left and right sides of the main articulation seat 16; a lower articulation shaft 202 is arranged in the articulation port 201; lower articulation grooves 203 corresponding to the position of the articulation port 201 are arranged on the left and right sides of the rear side of the lower surface of the seat plate 8; an upper articulation shaft is arranged in the lower articulation groove 203; a tilting cylinder 205 is provided between the lower articulation groove 203 and the articulation port 201; the upper end of the tilting cylinder 205 is inclined forward; the lower end of the tilting cylinder 205 is provided with a lower articulation head 206 articulated with the lower articulation shaft 202; a pushing piece 207 is provided at the upper end of the piston rod of the tilting cylinder 205; an upper articulation head 208 articulated with the upper articulation shaft is provided on the upper surface of the pushing piece 207.
[0035] The leg support plate adjustment device 3 includes a first swing opening 301 arranged at the front side of the middle of the main hinge seat 16; the inner walls on the left and right sides of the first swing opening 301 are provided with second shaft holes 302 symmetrical to each other; a first swing arm 303 is provided between the main hinge seat 16 and the leg support plate 10; the left and right sides of the rear end of the first swing arm 303 are provided with rotating shafts 304 matching the second shaft hole 302; a first motor mounting groove 305 is provided at the bottom of the second shaft hole 302; a first motor 306 matching therewith is provided in the first motor mounting groove 305; a first meshing groove 307 is provided at the center of the end face of the rotating shaft 304 opposite to the bottom of the second shaft hole 302; A plurality of first meshing teeth 308 uniformly distributed in a circle are provided in the meshing groove 307; a first transmission gear 309 meshing with the first meshing teeth 308 is provided at the end of the motor shaft of the first motor 306; a slideway 310 is provided in the middle part of the leg rest plate 10; a slideway 311 communicating with the slideway 310 is provided on the rear side wall of the middle part of the leg rest plate 10; a sliding member 312 matching with the slideway 310 is provided in the slideway 310; a first sub-articulated seat 313 is provided on the rear side wall of the sliding member 312; a rear end of the first sub-articulated seat 313 extends backwards out of the slideway 311 and is hinged to the front end of the first swing arm 303; the front end of the first swing arm 303 is tilted downward.
[0036] The backrest plate adjustment device 4 includes a second secondary hinge seat 401 arranged on the left and right sides of the rear side wall of the backrest plate 9; the left and right sides of the rear side wall of the main hinge seat 16 are provided with a second swinging hole 402 corresponding to the position of the second secondary hinge seat 401; a second swing arm 403 is provided between the second secondary hinge seat 401 and the second swinging hole 402; the rear end of the second secondary hinge seat 401 has a second hinge shaft 404; the upper end of the second swing arm 403 is hinged on the second hinge shaft 404; the lower end of the second swing arm 403 is located in the second swinging hole 402; the second swinging hole 402 is provided on the side wall away from the center of the main hinge seat 16 There is a second motor mounting groove 405; a second motor 406 matching with it is arranged in the second motor mounting groove 405; a second meshing groove 407 is arranged on the side wall at the lower end of the second swing arm 403 opposite to the second motor mounting groove 405; a plurality of second meshing teeth 408 uniformly distributed in a circumference are arranged in the second meshing groove 407; a second transmission gear 409 meshing with the second meshing teeth 408 is arranged at the end of the motor shaft of the second motor 406; a positioning hole 410 is arranged on the side wall at the lower end of the second swing arm adjacent to the center of the main hinge seat, and a positioning shaft 411 matching with the positioning hole is arranged on the inner wall of the second swing opening.
[0037] The headrest adjustment device 5 includes a third sub-hinged seat 501 arranged in the middle of the rear side wall of the headrest 11; the third sub-hinged seat 501 is hinged with symmetrical adapters 502 on both sides; the adapter 502 is hinged with a third swing arm 503; the lower end of the third swing arm 503 is tilted forward and hinged on the second hinge shaft 404; the side wall of the lower end of the third swing arm 503 opposite to the second sub-hinged seat 401 is provided with a third shaft hole 504 matching the second hinge shaft 404; A third meshing groove 505 is provided on the side wall of one side adjacent to the center of the backrest plate 9 at the lower end of the swing arm 503; a plurality of third meshing teeth 506 uniformly distributed in a circumference are provided on the inner wall of the third meshing groove 505; a third motor mounting seat 507 adjacent to the lower end of the third swing arm 503 is provided on the rear side wall of the backrest plate 9; a third motor 508 matching with the third motor mounting seat 507 is provided; a third transmission gear 509 meshing with the third meshing teeth 506 is provided at the end of the motor shaft of the third motor 508.
[0038] The adapter 502 includes a first hinged portion 5021 hinged on the third sub-hinged seat 501; the rear end of the first hinged portion 5021 extends an extension portion 5022 toward the upper end of the third swing arm 503 adjacent thereto; the rear end of the extension portion 5022 is provided with a second hinged portion 5023 hinged to the upper end of the third swing arm 503.
[0039] The rehabilitation device 6 includes a leg rehabilitation bracket 601 arranged on the left and right sides of the front of the leg support board 10; a foot pedal 602 is arranged at the lower end of the leg rehabilitation bracket 601; the left and right sides of the inside of the leg support board 10 have module placement cavities; the front side wall of the leg support board 10 is provided with movable grooves 604 located on the left and right sides of the module placement cavity; the movable groove 604 is connected with the module placement cavity through a sliding port 605; a linear module 606 matching it is arranged in the module placement cavity; support rods 607 are arranged on the upper, lower, left and right sides of the middle part of the leg rehabilitation bracket 601; the lower end of the support rod 607 has a linear module arranged on the linear module The connecting part 608 on the slider 6061 of 606 passes through the sliding opening 605; the auxiliary support rods 609 are hinged on the left and right sides of the upper end of the leg rehabilitation bracket 601; the auxiliary support rods 609 on the left and right sides are connected by a number of evenly distributed support cloths 610; the upper end of the auxiliary support rod 609 is bent toward the movable groove 604 and is hinged with a connecting rod 611; the upper part of the movable groove 604 is connected with the module placement cavity through an auxiliary opening 612; a support frame 613 is provided between the lower end of the connecting rod 611 and the outer wall of the linear module 606, and the support frame 613 passes through the auxiliary opening 612.
[0040] The method of use of the present invention is as follows:
[0041] When the rehabilitation personnel needs to use the wheelchair, they can sit on the upper surface of the seat plate 8, with their backs against the front side walls of the backrest plate 9, their heads against the front side walls of the headrest plate 11, and their feet on the footboards 602 to support their legs. At the same time, their legs are placed on the leg rehabilitation brackets 601, and the armrests on the left and right sides can be adjusted in actual height through the armrest folding device according to actual usage. When the rehabilitation personnel needs to use the wheelchair for transportation, they can realize automatic movement of the wheelchair by using the shifting device.
[0042] When the rehabilitation personnel uses the shifting device 1 to move, one of the steering motors 106 or multiple steering motors 106 can be started. When the steering motor 106 is running, the motor shaft of the steering motor 106 will drive the driving wheel 107 to rotate, and the driving wheel 107 is in contact with the lower outer wall of the main sphere 104. When the driving wheel 107 rotates, the driving wheel 107 will use the friction between itself and the main sphere 104 to drive the main sphere 104 to rotate. When the main sphere 104 rotates, the base 15 will move, thereby realizing the movement of the wheelchair. The rotation of the driving wheels 107 at different positions can make the main sphere 104 rotate in different directions, thereby The wheelchair can be automatically moved in different directions. When the main sphere 104 rotates, the auxiliary sphere 112 rotates synchronously therewith to assist the movement. The main sphere 104 is confined in the space enclosed by the limit cover 102 and a number of driving wheels 107 evenly distributed on the circumference, and the auxiliary sphere 112 is confined in the space enclosed by the positioning cover and a number of positioning claws evenly distributed on the circumference. Therefore, the stability of the main sphere 104 and the auxiliary sphere 112 during rotation can be effectively guaranteed. The shock absorber is an existing hydraulic spring shock absorber, which is commonly used on motorcycles. The existence of the shock absorber can effectively play a role in buffering and shock reduction, thereby improving the comfort of rehabilitation personnel when using wheelchairs for transportation.
[0043] The inner walls of the positioning claw 111 and the positioning cover 110, and the inner walls of the limiting groove 103 and the limiting claw 105 are all provided with a number of evenly distributed spherical grooves 113, and the spherical grooves 113 are provided with matching balls 114. One end of the ball 114 in the positioning claw 11 and the positioning cover 110 protrudes out of the spherical groove 113 and fits with the outer wall of the secondary sphere 112. One end of the ball 114 in the limiting groove 103 and the limiting claw 105 protrudes out of the spherical groove 113 and fits with the outer wall of the main sphere 104. The presence of the ball 114 can effectively reduce the friction between the secondary sphere 112 and the inner wall of the positioning claw 111 and the inner wall of the positioning cover 110, effectively reduce the friction between the outer wall of the main sphere 104 and the inner wall of the limiting groove 103 and the inner wall of the limiting claw 105, and effectively improve the smoothness of the rotation of the main sphere 104 and the secondary sphere 112.
[0044] When the rehabilitation personnel need to adjust the actual height of the armrest through the armrest folding device, the folding motor 703 can be started. At this time, the motor shaft of the folding motor 703 will drive the screw rod 704 to rotate through the first coupling. Since the screw rod 704 is screwed into the screw hole 707 of the moving part 706, and the first folding arm 708 hinged on the moving part 706 is connected to the second folding arm 710 through the armrest, and the lower end of the second folding arm 710 is hinged in the front hinge groove 711, the front hinge groove 711 will limit the rotation of the second folding arm 710 through the groove walls on its left and right sides, thereby The second folding arm 710 limits the rotation of the first folding arm 708, and finally limits the rotation of the moving part 706. Therefore, when the screw rod 704 rotates, the moving part screwed with the screw rod 704 will convert the rotational force into its own forward and backward movement force. When the moving part 706 moves backward, the lower end of the first folding arm 708 will move backward accordingly, and the rear end of the armrest 709 hinged to the upper end of the first folding arm 708 and the rear end of the armrest 709 hinged to the upper end of the second folding arm 710 will move downward accordingly, thereby realizing the height reduction of the armrest 709 and completing the height adjustment of the armrest 709.
[0045] Before the legs need to be rehabilitated, the rehabilitation personnel can adjust their position on the wheelchair according to actual needs, and can adjust the position to sitting, half-lying or lying flat. The entire rehabilitation process does not require the use of other physiotherapy beds. All rehabilitation work can be completed on the wheelchair. When the rehabilitation personnel need to adjust their own position, they can adjust the angles of the leg support board 10, the back support board 9 and the head support board 11 respectively.
[0046] When the angle of the backrest board 9 needs to be adjusted, the second motor 406 can be started. At this time, the motor shaft of the second motor 406 will drive the second transmission gear 409 to rotate, and the second transmission gear 409 will mesh with the second meshing tooth 408. When the second transmission gear 409 rotates, the lower end of the second swing arm 403 rotates around the axis of the second meshing groove 407, thereby realizing the swing of the second swing arm 403. When the upper end of the second swing arm 403 swings backward, the backrest board 9 swings backward synchronously around the rear hinge shaft 14 as the center. At this time, the larger the angle formed between the backrest board 9 and the seat board 8, the back of the rehabilitation person leaning on the front side wall of the backrest board will gradually fall with the backrest board, and the rehabilitation person will be in a semi-lying state.
[0047] When the angle of the backrest board 9 is adjusted, the second motor 406 can be turned off, and then the angle of the headrest board 11 can be adjusted to an angle suitable for the rehabilitation personnel. When the angle of the headrest board 11 needs to be adjusted, the third motor 508 can be started. At this time, the motor shaft of the third motor 508 drives the third transmission gear 509 to rotate, and the third transmission gear 509 is meshed with the third meshing tooth 506. When the third transmission gear 509 rotates, the lower end of the third swing arm 503 rotates around the axis of the third meshing groove 505, thereby realizing the swing of the third swing arm 503. When the upper end of the third swing arm 503 swings backward, the third swing arm 503 will drive the upper end of the backrest board 9 to tilt backward through the adapter and the third sub-hinged seat 501, thereby realizing the angle adjustment of the headrest board 11.
[0048] During the actual rehabilitation process, the leg placement methods of the rehabilitation personnel may also be different. In this case, the angle of the leg rehabilitation bracket 601 of the rehabilitation device can be changed by adjusting the angle of the leg support board 10 to adapt to different rehabilitation situations. When the angle of the leg support board 10 needs to be adjusted, the first motor 306 can be started. At this time, the motor shaft of the first motor 306 will drive the first transmission gear 309 to rotate, and the first transmission gear 309 is meshed with the first meshing tooth 308. When the first transmission gear 309 rotates, the rear end of the first swing arm 303 rotates around the rotating shaft 304, thereby realizing the swing of the first swing arm 303. When the front end of the first swing arm 303 swings upward, the first sub-articulated seat 313 will slide upward along the trajectory of the slide slot 311. At this time, the lower end of the leg support board 10 is gradually lifted up, thereby realizing the angle adjustment of the leg support board 10 and the rehabilitation device.
[0049] When the lower end of the leg rest 10 is lifted to a certain angle, the upper surface of the leg rest 10 is coplanar with the upper surface of the seat plate 8; when the backrest 9 and the headrest 11 are dropped to a certain angle, the upper surface of the backrest 9 and the upper surface of the headrest 11 are coplanar with the upper surface of the seat plate 8. At this time, the wheelchair is completely converted into a therapy bed, and the rehabilitation personnel can lie directly on it for rehabilitation.
[0050] When it is necessary to rehabilitate the legs of the rehabilitator, the linear module 606 can be directly started. The linear module 606 is an existing automated device that can achieve high-precision linear motion. When the rehabilitator places his legs on the leg rehabilitation bracket 601, the feet of the rehabilitator are lifted up by the foot pedals. Therefore, when the slider 6061 of the linear module 606 drives the support rod 607 to move toward the front end of the seat plate 8 through the connecting portion 608, the leg rehabilitation bracket 601 and the foot pedal 602 move synchronously therewith. The existence of the sliding opening 605 ensures that the movement of the connecting portion 608 will not be hindered, thereby ensuring the smoothness and stability of the movement of the leg rehabilitation bracket 601 and the foot pedal 602. When the foot pedal 602 pushes the feet of the rehabilitator toward the front end of the seat plate 8 , the legs of the rehabilitation personnel will move accordingly, and as the foot pedal 602 is closer to the front end of the seat plate 8, the knee bending range of the rehabilitation personnel will be greater, thereby controlling the degree of activity of the legs of the rehabilitation personnel, thereby effectively controlling the rehabilitation process, and the bracket cloth 610 between the auxiliary support rods 609 on the left and right sides can not only effectively increase the support points of the leg rehabilitation bracket 601, but also ensure the stability of the legs when placed on the leg rehabilitation bracket 601, and at the same time ensure the comfort when placed on the leg rehabilitation bracket 601, when the foot pedal is reset under the drive of the slider 6061 of the linear module 606, the legs will change from the bent state to the normal state, and so on and so forth, so that the legs of the rehabilitation personnel can continuously move, thereby completing rehabilitation on the wheelchair.
[0051] When the rehabilitator needs to get up from the wheelchair, the armrest 709 can effectively provide support. At the same time, the tilting cylinder 205 is started, and the piston rod of the tilting cylinder 205 will push the rear end of the seat plate 8 upward through the pushing member 207, so that the upper rear end of the seat plate 8 is gradually lifted up, and at this moment, the buttocks of the rehabilitator falling on the upper surface of the seat plate 8 will be lifted up accordingly, thereby raising the upper body of the rehabilitator. With the assistance of external force, the rehabilitator does not need to rely on the entire weight of the arm supporter supported on the armrest 709. With the lifted seat plate 8, the rehabilitator only needs to expend a small amount of effort to stand up from the wheelchair, thereby facilitating the rehabilitator to get up and move to the bed or other positions.
[0052] In summary, the present invention can control the reciprocating movement of the leg rehabilitation bracket 601 through the linear module 606, so that the legs of the rehabilitation personnel on the leg rehabilitation bracket 601 can be constantly moved to achieve rehabilitation. Therefore, the rehabilitation personnel only need to sit in the wheelchair to complete the rehabilitation by themselves, without relying on others for rehabilitation, and without going to a rehabilitation place to use special rehabilitation equipment for rehabilitation, which effectively reduces the trouble of others and reduces the rehabilitation cost. At the same time, the angle of the leg support board 10 can be adjusted by the leg support board adjustment device, the angle of the back support board 9 can be adjusted by the back support board adjustment device, and the angle of the head support board can be adjusted by the head support board adjustment device. The angle of the headrest 11 is adjusted so that the wheelchair can be converted into a semi-reclining or flat-lying physiotherapy bed, which avoids the trouble of the rehabilitation personnel transferring from the wheelchair to the physiotherapy bed during the rehabilitation process. When the rehabilitation personnel needs to get up and leave the wheelchair, the seat plate 8 can be lifted up through the seat plate adjusting device, so that the upper body of the rehabilitation personnel can be passively moved up, effectively supporting most of the weight of the rehabilitation personnel. At this time, only a little strength of the hands is needed to completely transfer the body out of the wheelchair, effectively avoiding the situation that the rehabilitation personnel only rely on the hands to support the weight of the whole body, resulting in temporary instability and falling, and effectively eliminating safety hazards.
[0053] The adapter 502 includes a first hinge portion 5021 hinged on the third sub-hinge seat 501, and an extension portion 5022 is extended from the rear end of the first hinge portion 5021 toward the upper end of the third swing arm 503 adjacent thereto, and a second hinge portion 5023 is provided at the rear end of the extension portion 5022 to be hinged to the upper end of the third swing arm 503. This structural design can effectively improve the extension degree of the adapter and facilitate the hinge of the upper end of the third swing arm 503.
Claims
1. A wheelchair with rehabilitation function, comprising a seat, a backrest, a legrest, and a headrest, with a shifting device below the seat, characterized in that: The folding device is a foldable device for folding an armrest, a front hinge shaft is provided between the front ends of the left and right armrest seats, and a rear hinge shaft is provided between the rear ends of the left and right armrest seats; the lower end of the backrest board is hinged on the rear hinge shaft; the lower end of the headrest board is hinged on the upper end of the backrest board; the upper end of the legrest board and the front end of the seat board are hinged on the front hinge shaft; a base is provided under the seat board; a main hinge seat is provided above the base; a seat board adjustment device matching the seat board is provided on the main hinge seat; the main hinge seat and the legrest board are connected by a legrest board adjustment device; the main hinge seat and the backrest board are connected by a backrest board adjustment device; the backrest board and the headrest board are connected by a headrest board adjustment device; a rehabilitation device is provided on the front side of the legrest board, 2. The wheelchair with rehabilitation function according to claim 1, characterized in that: The armrest folding device includes a storage slot provided on the upper surface of the armrest seat; a folding motor mounting slot is provided at the lower part of the rear side slot wall of the storage slot; a folding motor matching it is provided in the folding motor mounting slot; the motor shaft of the folding motor is connected to a screw rod through a first coupling; a first axial hole matching the front end of the screw rod is provided at the lower part of the front side slot wall of the storage slot; a moving part is provided in the storage slot; a screw hole is provided on the moving part, and the screw rod is screwed into the screw hole; the upper end of the moving part is hinged to a first folding arm; an armrest is provided just above the armrest seat; the upper end of the first folding arm extends upward to the outside of the storage slot and is hinged to the front end of the armrest; a second folding arm is hinged to the side wall on the side of the rear end of the armrest away from the seat plate; a front hinge slot is provided on the upper surface of the front end of the armrest seat; the lower end of the second folding arm is hinged in the front hinge slot.
3. The wheelchair with rehabilitation function according to claim 1, characterized in that: The shifting device includes a support column arranged at the center of the lower surface of the base; a limit cover is provided at the lower end of the support column; a limit groove is provided in the limit cover, and the limit groove notch faces downward; the limit groove is hemispherical; a main sphere is provided under the limit cover, and the upper end of the main sphere is located in the limit groove; a plurality of limit claws are provided on the edge of the lower surface of the limit cover and are evenly distributed around the circumference, and the plurality of limit claws enclose the main sphere; a steering motor is provided at the lower end of the limit claw; the motor shaft of the steering motor is provided with A driving wheel that fits with the lower outer wall of the main sphere; the upper outer wall of the support column is provided with a plurality of fixing seats that are evenly distributed around the circumference; the fixing seat is hinged with a shock absorber that matches it; the lower end of the shock absorber is inclined in the direction away from the main sphere, and the lower end of the shock absorber is hinged with a positioning cover; the outer wall of the lower surface of the positioning cover is provided with a plurality of positioning claws that are evenly distributed around the circumference; a secondary sphere is provided in the space enclosed by the plurality of positioning claws and the inner wall of the positioning cover; the lower end of the positioning claw is lower than the middle of the secondary sphere.
4. The wheelchair with rehabilitation function according to claim 3, characterized in that: The inner walls of the positioning claw and the positioning cover, the inner walls of the limiting groove and the limiting claw are all provided with a number of evenly distributed spherical grooves; matching balls are provided in the spherical grooves; one end of the ball protrudes out of the spherical groove.
5. The wheelchair with rehabilitation function according to claim 1, characterized in that: The seat plate adjustment device includes hinge ports provided on the left and right sides of the main hinge seat; a lower hinge shaft is provided in the hinge port; lower hinge grooves corresponding to the positions of the hinge ports are provided on the left and right sides of the rear side of the lower surface of the seat plate; an upper hinge shaft is provided in the lower hinge groove; a tilted cylinder is provided between the lower hinge groove and the hinge port; the upper end of the tilted cylinder is tilted forward; the lower end of the tilted cylinder is provided with a lower hinge head hinged to the lower hinge shaft; a pushing piece is provided at the upper end of the piston rod of the tilted cylinder; an upper hinge head hinged to the upper hinge shaft is provided on the upper surface of the pushing piece.
6. The wheelchair with rehabilitation function according to claim 1, characterized in that: The leg rest adjustment device includes a first swing opening provided on the front side of the middle of the main hinge seat; second axial holes are symmetrically provided on the inner walls on the left and right sides of the first swing opening; a first swing arm is provided between the main hinge seat and the leg rest plate; a rotating shaft matching the second axial hole is provided on the left and right sides of the rear end of the first swing arm; a first motor mounting slot is provided at the bottom of the second axial hole; a first motor matching it is provided in the first motor mounting slot; a first meshing groove is provided at the center of the end face of the rotating shaft opposite to the bottom of the second axial hole; a first transmission gear meshed with the first meshing teeth evenly distributed on the circumference is provided in the first meshing groove; a slide is provided in the middle of the leg rest plate; a slide groove is provided on the rear side wall of the middle of the leg rest plate that penetrates the slide; a sliding member matching it is provided in the slide; a first secondary hinge seat is provided on the rear side wall of the sliding member; the rear end of the first secondary hinge seat passes backward to the outside of the slide groove and is hinged to the front end of the first swing arm; the front end of the first swing arm is inclined downward.
7. The wheelchair with rehabilitation function according to claim 1, characterized in that: The backrest adjustment device includes a second secondary hinge seat provided on the left and right sides of the rear side wall of the backrest plate; a second swing opening corresponding to the position of the second secondary hinge seat is provided on the left and right sides of the rear side wall of the main hinge seat; a second swing arm is provided between the second secondary hinge seat and the second swing opening; a second hinge shaft is provided at the rear end of the second secondary hinge seat; the upper end of the second swing arm is hinged on the second hinge shaft; the lower end of the second swing arm is located in the second swing opening; a second motor mounting slot is provided on the side wall of the second swing opening away from the center of the main hinge seat; a second motor matching it is provided in the second motor mounting slot; a second meshing slot is provided on the side wall of the lower end of the second swing arm opposite to the second motor mounting slot; a plurality of second meshing teeth evenly distributed on the circumference are provided in the second meshing slot; a second transmission gear is provided on the motor shaft end of the second motor to mesh with the second meshing teeth; a positioning hole is provided on the side wall of the lower end of the second swing arm adjacent to the center of the main hinge seat, and a positioning shaft matching the positioning hole is provided on the inner wall of the second swing opening.
8. The wheelchair with rehabilitation function according to claim 7, characterized in that: The headrest adjustment device includes a third sub-hinge seat arranged in the middle of the rear side wall of the headrest plate; the third sub-hinge seat is hinged with symmetrical adapters on the left and right sides; the adapter is hinged with a third swing arm; the lower end of the third swing arm is tilted forward and hinged on the second hinge shaft; the side wall on the side opposite to the second sub-hinge seat at the lower end of the third swing arm is provided with a third axial hole matching the second hinge shaft; the side wall on the side of the lower end of the third swing arm adjacent to the center of the backrest plate is provided with a third meshing groove; the inner wall of the third meshing groove is provided with a number of third meshing teeth evenly distributed in a circumference; the rear side wall of the backrest plate is provided with a third motor mounting seat adjacent to the lower end of the third swing arm; the third motor mounting seat is provided with a third motor matching it; the motor shaft end of the third motor is provided with a third transmission gear meshing with the third meshing teeth.
9. The wheelchair with rehabilitation function according to claim 8, characterized in that: The adapter comprises a first hinge portion hinged to the third secondary hinge seat; a rear end of the first hinge portion extends an extension portion toward the upper end of the third swing arm adjacent thereto; The rear end of the extension portion is provided with a second hinged portion hinged to the upper end of the third swing arm.
10. The wheelchair with rehabilitation function according to claim 1, characterized in that: The cam is connected to the support frame of the bicycle and the support frame of the bicycle, and the support frame is connected with the support frame of the bicycle to support the support frame of the bicycle.