CN108030599B - A wheelchair that helps people get on the bus - Google Patents

Abstract

The invention discloses a wheelchair that helps people get on the car. It includes a folding wheelchair frame. The wheelchair frame is also provided with a lifting mechanism, armrests, seat cushions, guide rail plates, a third motor and a controller. The armrests are provided with a device connected to the controller. The control switch, the third motor is connected to the guide rail plate to control the rotation of the guide rail plate. When the guide rail plate is not working, it is parallel to the handrail. There is a slide rail on the top of the lifting mechanism. The slide rail is connected to the transmission plate. The transmission plate is movable on the wheelchair frame. There is an initial section of the guide rail on the transfer plate, and the seat cushion is placed on the initial section of the guide rail. The guide rail plate and handrails are set on both sides of the wheelchair frame. There is a middle section of the guide rail on the inside of the guide rail plate, and there is a final section of the guide rail on the outside. Under the action of the controller, the seat cushion can Slide on the initial section of the guide rail, the middle section of the guide rail and the end section of the guide rail to transport people to the car seat. The wheelchair of the present invention can automatically send people into the car and return to the wheelchair from the car, which greatly facilitates driving for people with lower body disabilities.

Description

A wheelchair that helps people get on the bus

Technical field

The invention belongs to the technical field of wheelchairs, and specifically relates to an assistive wheelchair that can help a person with a lower body disability to automatically enter a car from a wheelchair.

Background technique

With the rapid development of the economy and the improvement of people's living standards, cars have become an indispensable way of travel, and those who sit in wheelchairs with lower limb inconvenience will encounter great difficulties in the process of changing from wheelchair to car seat. trouble. Currently, the existing wheelchair-vehicle transfer device on the market directly moves the wheelchair into the car, but it is only suitable for a specific modified vehicle, and it is difficult to promote it. Therefore, the present invention aims to provide a device that automatically takes people into the vehicle. A wheelchair with a car seat cushion is used to solve the problem of difficulty in getting into a car for people with lower body disabilities.

Contents of the invention

In view of the above-mentioned problems existing in the prior art, the object of the present invention is to provide an assistive wheelchair that can help a person with a lower body disability to automatically enter a car from a wheelchair.

The wheelchair for assisting people to get on the car includes a folding wheelchair frame. The base of the wheelchair frame is provided with front wheels and rear wheels. It is characterized in that the wheelchair frame is also provided with a lifting mechanism, armrests, cushions, guide rails, and a third wheel. Motor and controller. The handrail is equipped with a control switch connected to the controller. The third motor is connected to the guide rail plate to control the rotation of the guide rail plate. When the guide rail plate is not working, it is parallel to the handrail. There is a slide rail on the top of the lifting mechanism. The slide rail is connected to the guide rail. The transfer plate is connected. The transfer plate is movable on the wheelchair frame. Under the action of the lifting mechanism, the transfer plate can slide up and down on the wheelchair frame. The transfer plate is equipped with an initial section of the guide rail. The seat cushion is placed on the initial section of the guide rail. The guide rail plate and handrails are set on On both sides of the wheelchair frame, there is a middle section of the guide rail on the inside of the guide rail plate and a final section of the guide rail on the outside. Under the action of the controller, the seat cushion can slide on the initial section of the guide rail, the middle section of the guide rail and the end section of the guide rail to transport the person to the car seat. .

The described wheelchair is characterized in that the lifting mechanism includes a cylinder base and a slide rail. The cylinder base is installed at the bottom of the wheelchair frame. The cylinder and the support block are arranged on opposite sides of the cylinder base. The cylinder rod, There are slide blocks on the support block and the slide rail. There are two slide blocks on the slide rail. There are bearing supports on the slide block. A set of aluminum rods are cross-connected to form multiple connected scissor-fork structures. The scissor-fork structure The ends of the two aluminum rods at the bottom are respectively installed on the cylinder rod of the cylinder and the bearing support of the support block. The ends of the two aluminum rods at the top are respectively installed on the bearing supports on the slide rail. There is a transfer plate on the slide rail. The transfer plate is movablely installed on the wheelchair frame, and under the action of the lifting mechanism, the transfer plate can move up and down the wheelchair frame, and the cylinder is connected to the controller.

The wheelchair is characterized in that the seat cushion is composed of a clamping mechanism, a worm, a first polished rod, a bevel gear, a bottom plate, a first motor, a short polished rod, a back plate, a support plate and a seat plate. The clamping mechanism There are 4 of them, respectively fixed at the four corners of the base plate. There are worms on the clamping mechanism. There are two first polished rods arranged in parallel. The two ends of each first polished rod are respectively set on two worms. The middle part of each first polished rod Bevel gears are respectively provided on the middle part, both ends of the short polished rod and the transmission shaft of the first motor. The bevel gear on the first motor meshes with the bevel gear in the middle part of the short polished rod, driving the short polished rod to rotate. The ends of the short polished rod are connected with the third polished rod. A polished rod is meshed and connected through a bevel gear, and the first polished rod drives the seat cushion to slide on the guide rail. The top of the clamping mechanism passes above the support plate, and the upper plate is located on the top of the clamping mechanism.

The wheelchair is characterized in that the seat cushion is provided with side panels on both sides of the base plate, and a rear panel is provided at the back. The base panel, side panels, rear panel and support panel are connected to form a space. The clamping mechanism and the first polished rod , bevel gear and first motor are located in the space.

The wheelchair is characterized in that the clamping mechanism is composed of a base, a rocker arm, a vertical arm, a fixed groove, a spring, a movable block, a fixed block, a worm gear and a rubber ball, and the base is fixed on the bottom plate There is a chute on the lower right side of the base. The fixed block is fixed on the lower right end of the base. The movable block is movable on the chute. The middle hole of the rocker arm rod and the corresponding hole on the base are connected through a pin. The rocker arm rod can Rotate with the middle hole as the axis. One end of the rocker arm is connected to the movable block, and the other end is connected to the vertical arm. The fixed groove is set outside the vertical arm to act as a guide. The spring is set on the top of the vertical arm, and the upper plate is installed on the spring. , the movable block and the fixed block are provided with a connecting shaft, the connecting shaft is provided with a worm gear, the worm gear and the rubber ball are installed at the bottom of the connecting shaft, and the worm gear is connected to the worm.

The wheelchair for assisting people to board the vehicle is characterized in that the end of the rocker arm rod is provided with an inclined guide groove, and the vertical arm is connected to the inclined guide groove through a pin.

The wheelchair for assisting people to get on the car is characterized in that the top of the vertical arm is located in the middle of the fixed groove, and the spring is located in the fixed groove.

The wheelchair is characterized in that the guide rail plate is composed of an initial section of the guide rail, an armrest plate, a second polished rod, a second motor, a second large gear and an end section of the guide rail arranged on the armrest plate. There is a protruding part, a rotating shaft and a second motor. The protruding part is the middle section of the guide rail. The right end of the initial section of the guide rail is movable with a third polished rod. The inner end of the middle section of the guide rail is fixedly connected to the third polished rod. One end of the third polished rod is equipped with a second large gear. The transmission shaft of the three motors is connected to the second small gear, and the second small gear is meshed with the second large gear to control the rotation of the third polished rod. The third polished rod drives the armrest panel to expand or retract. The outside of the armrest panel corresponds to the protruding part. There is an inner recess at the position, and a second polished rod is movable at the outer end of the middle section of the guide rail. The second polished rod is fixedly connected at one end of the guide rail. One end of the second polished rod is provided with a first large gear, and the transmission shaft of the second motor is connected to the first pinion. , the first small gear is meshed with the first large gear and is used to control the rotation of the second polished rod. The second polished rod drives the end section of the guide rail to expand or retract. When the end section of the guide rail is retracted, it is located on the inner recess. When it is expanded, it remains with the middle section of the guide rail. Horizontally, the rotating shaft is connected to the third motor, which can rotate the vertical guide rail plate to a horizontal state. The initial section of the guide rail, the middle section of the guide rail and the end section of the guide rail are connected and form a guide rail at the same horizontal position for seat cushion sliding.

The described wheelchair is characterized in that the end section of the guide rail is equipped with a self-locking device. When the end section of the guide rail is unfolded to an angle of 180 degrees with the armrest plate, the connection between the end section of the guide rail and the middle section of the guide rail resists each other, preventing the guide rail from moving. The final section continues to rotate.

By adopting the above technology, compared with the existing technology, the present invention has the following beneficial effects:

1) The wheelchair of the present invention includes a wheelchair frame, a lifting mechanism, a guide rail expansion mechanism, and a seat cushion in four parts. The wheelchair frame is similar to a general wheelchair and is foldable; the lifting mechanism realizes back-and-forth movement by inflating and deflating the cylinder. And the link mechanism drives the slider to move on the guide rail, thereby realizing the rise of the upper part; the guide rail expansion mechanism is mainly composed of a motor, a controller and a guide rail. The guide rail includes the initial section of the guide rail, the middle section of the guide rail and the end section of the guide rail. The guide rail plate has not been deployed. When unfolded, the armrest guide rail is first driven by a motor to tilt 30 degrees, and then the inner guide rail hidden in the armrest is driven by another motor to unfold 180 degrees, and then the armrest guide rail is fully unfolded until the end of the guide rail is placed on the car seat cushion; The seat cushion is mainly composed of a seat cushion frame, a control part, a DC motor, a worm gear, a gear, and a clamping mechanism. The clamping mechanism mainly includes a base, a rocker arm, a spring, a movable block, a worm gear, and a rubber ball. When a person sits, When on the seat cushion, the upper plate moves down slightly, depressing the spring, thereby driving the clamping mechanism to clamp the guide rail. If the switch is pressed, the motor rotates, and the worm gear drives the rubber ball of the clamping mechanism to bite on the guide rail. forward movement, thereby causing the entire seat cushion and the person on it to move forward into the car;

2) The device of the present invention can move the human body into the car. It first lifts the person to a height similar to that of the car seat, and then sends the person and wheelchair seat together to the car through the guide rails. After that, the wheelchair returns to its original shape and is folded and put in. In the car; when you want to get out of the car, take out the wheelchair and put it in a suitable position, insert the track between the wheels of the seat cushion, and the seat cushion can move back to the wheelchair along the track, which can automatically send people into the car, and can Returning from the car to the wheelchair greatly facilitates driving for people with lower body disabilities.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure;

Figure 2 is a schematic diagram of the overall structure of the working process;

Figure 3 is a partial structural diagram of the lifting mechanism;

Figure 4 is a schematic diagram of the first structure of the guide rail plate after unfolding;

Figure 5 is a schematic diagram of the second structure after the guide rail plate is deployed;

Figure 6 is a schematic structural diagram of the seat cushion from above;

Figure 7 is a schematic diagram of the overall structure of the seat cushion;

Figure 8 is a schematic front structural view of the internal clamping mechanism of the seat cushion.

In the picture: 1-front wheel; 2-lifting mechanism; 201-cylinder, 202-bearing support, 203-aluminum rod, 204-slide rail, 205-slider block, 206-support block; 3-armrest; 4-seat cushion ; 401—clamping mechanism; 4011—base; 4012—rocker lever; 4013—vertical arm; 4014—fixed groove; 4015—spring; 4016—movable block; 4017—fixed block; 4018—worm gear; 4019—rubber Ball; 420—inclined guide groove; 402—side plate; 403—worm; 404—first polished rod; 405—bevel gear; 406—base plate; 407—first motor; 408—short polished rod; 409—rear plate; 410— Support plate; 411 - upper plate; 5 - guide rail plate; 501 - handrail plate; 502 - initial section of guide rail; 503 - second polished rod; 504 - second motor; 505 - first small gear; 506 - first large gear; 507 - The second large gear; 508 - the end of the guide rail; 509 - the middle section of the guide rail; 510 - the second small gear; 511 - the third polished rod; 6 - the rear wheel; 7 - the third motor, 8 - the transmission plate.

Implementation

The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited thereto:

As shown in Figures 1-8, the wheelchair of the present invention is used to help people with lower body disabilities to automatically enter the car from the wheelchair. It includes a folding wheelchair frame. The bottom of the wheelchair frame is provided with front wheels 1 and rear wheels. 6. The wheelchair frame is also provided with a lifting mechanism 2, an armrest 3, a seat cushion 4, a guide rail plate 5, a third motor 7 and a controller. The armrest 3 is provided with a control switch connected to the controller. The cylinder and all motors of the present invention are It is connected to the controller, and its work is controlled by a switch; the third motor 7 is connected to the guide rail plate 5 to control the rotation of the guide rail plate 5. When the guide rail plate 5 is not working, it is parallel to the handrail 3. There is a slide rail 204 on the top of the lifting mechanism 2. The rail 204 is connected to the transmission plate 8. The transmission plate 8 is movably arranged on the wheelchair frame. Under the action of the lifting mechanism 2, the transmission plate 8 can slide up and down on the wheelchair frame. The transmission plate 8 is provided with a guide rail initial section 502, and the seat cushion 4 is placed on the wheelchair frame. On the initial section 502 of the guide rail, the guide rail plate 5 and the handrails 3 are arranged on both sides of the wheelchair frame. The guide rail plate 5 is provided with a middle section 509 of the guide rail on the inside, and the end section 508 of the guide rail is provided on the outside. Under the action of the controller, the seat cushion 4 can move in the initial section 502 of the guide rail. , the middle section 509 of the guide rail and the end section 508 of the guide rail slide to send the person to the car seat.

As shown in Figures 1-3, the lifting mechanism 2 of the present invention includes a cylinder base and a slide rail 204. The cylinder base is installed at the bottom of the wheelchair frame. The cylinder 201 and the support block 206 are provided on opposite sides of the cylinder base. The cylinder 201 The cylinder rod, the support block 206 and the slide rail 204 are all provided with slide blocks 205. The slide rail 204 is provided with two slide blocks 205. The slide block 205 is provided with a bearing support 202. A set of aluminum rods 203 are cross-connected to form a plurality of A connected scissor fork structure. The ends of the two aluminum rods 203 at the bottom of the scissor fork structure are respectively installed on the cylinder rod of the cylinder 201 and the bearing support 202 of the support block 206. The ends of the two aluminum rods 203 at the top are respectively installed on the slide. The bearing support 202 on the rail 204 and the slide rail 204 are provided with a transmission plate 8. The transmission plate 8 is movably installed on the wheelchair frame, and under the action of the lifting mechanism 2, the transmission plate 8 can move up and down the wheelchair frame, and the cylinder 201 The cylinder 201 is connected to the controller, and the controller controls the charging and deflating of the cylinder 201 to move forward and backward, thus completing the lifting of the lifting mechanism.

As shown in Figures 1-2 and 6-8, the seat cushion 4 of the present invention consists of a clamping mechanism 401, a worm 403, a first polished rod 404, a bevel gear 405, a bottom plate 406, a first motor 407, a short polished rod 408, and a rear plate. 409. The support plate 410 and the seat plate 11 are constituted. The seat cushion 4 is provided with side plates 402 on both sides of the base plate 406 and a back plate 409 at the back. The base plate 406, side plates 402, back plate 409 and support plate 410 are connected to form a space. The holding mechanism 401, the first polished rod 404, the bevel gear 405 and the first motor 407 are located in the space; there are four clamping mechanisms 401, which are respectively fixed at the four corners of the base plate 406. The clamping mechanism 401 is provided with a worm 403 and the first polished rod. 404 is two rods arranged in parallel. Both ends of each first polished rod 404 are respectively arranged on two worms 403. The middle part of each first polished rod 404 and the middle part and both ends of the short polished rod 408 and the first motor 407 transmission shaft Bevel gears 405 are respectively provided on the first motor 407. The bevel gear 405 on the first motor 407 meshes with the bevel gear 405 in the middle of the short polished rod 408, driving the short polished rod 408 to rotate. The end of the short polished rod 408 and the first polished rod 404 are connected through the meshing of the bevel gear 405. , the first polished rod 404 drives the seat cushion 4 to slide on the guide rail. The top of the clamping mechanism 401 passes above the support plate 410 , and the upper plate 411 is located on the top of the clamping mechanism 401 .

As shown in Figure 8, the clamping mechanism 401 consists of a base 4011, a rocker lever 4012, a vertical arm 4013, a fixed groove 4014, a spring 4015, a movable block 4016, a fixed block 4017, a worm gear 4018 and a rubber ball 4019. The base 4011 is fixed on the bottom plate 406, there is a chute on the lower right side of the base 4011, the fixed block 4017 is fixed on the lower right end of the base 4011, the movable block 4016 is movably set on the chute, and the movable block 4016 is located on the left side of the fixed block 4017. The middle hole of the arm lever 4012 and the corresponding hole on the base 4011 are connected through a pin. The rocker arm lever 4012 can rotate with the middle hole as the axis. One end of the rocker arm lever 4012 is connected to the movable block 4016. The movable block 4016 has a slope structure. The connecting end of the rocker arm rod 4012 rests on the slope of the movable block 4016. When the movable block 4016 slides, the rocker arm rod 4012 rotates. The other end of the rocker arm rod 4012 is provided with an inclined guide groove 420, and the vertical arm 4013 passes through the pin. Connected to the inclined guide groove 420, the fixed groove 4014 is set outside the vertical arm 4013 to serve as a guide. The top of the vertical arm 4013 is located in the middle of the fixed groove 4014. The spring is located in the fixed groove 4014. Under the action of the spring, it plays a certain buffering role. Improve its comfort; the upper plate 411 is installed on the spring 4015, which is provided with a spring. The spring is located between the upper plate 411 and the vertical arm 4013. When people sit on the upper plate, there are connections on the movable block 4016 and the fixed block 4017. shaft, the connecting shaft is provided with a worm gear 4018, the worm gear 4018 and the rubber ball 4019 are installed at the bottom of the connecting shaft, the worm gear 4018 is connected to the worm 403,

As shown in Figures 1-2 and 4-5, the guide rail plate 5 of the present invention consists of a guide rail initial section 502, an armrest plate 501, a second polished rod 503 provided on the armrest plate 501, a second motor 504, a second large gear 507 and The end section of the guide rail 508 is composed of a protrusion, a rotating shaft and a second motor 504 on the inside of the armrest plate 501. The protrusion is the middle section 509 of the guide rail. The right end of the initial section 502 of the guide rail is movable with a third polished rod 511. The inner end of the middle section 509 of the guide rail is connected to the third The polished rod 511 is fixedly connected. One end of the third polished rod 511 is provided with a second large gear 507. The transmission shaft of the third motor 7 is connected to the second small gear 510. The second small gear 510 is meshed with the second large gear 507 for controlling the third polished rod 511. The three polished rods 511 rotate, and the third polished rod 511 drives the armrest plate 501 to unfold or retract. There is an inner recessed portion on the outside of the armrest plate 501 corresponding to the protruding portion. The second polished rod 503 is movable at the outer end of the middle section 509 of the guide rail. The end section of the guide rail The second polished rod 503 is fixedly connected to one end of 508, and the first large gear 506 is provided at one end of the second polished rod 503. The transmission shaft of the second motor 504 is connected to the first small gear 505, and the first small gear 505 is meshed with the first large gear 506. It is used to control the rotation of the second polished rod 503. The second polished rod 503 drives the end section 508 of the guide rail to expand or retract. When the end section 508 of the guide rail is retracted, it is located on the inner recess. When it is expanded, it remains horizontal with the middle section 509 of the guide rail. The rotating shaft is connected to the third motor 7 , the armrest board 501 in a vertical state can be rotated to a horizontal state, and the initial section 502 of the guide rail, the middle section 509 of the guide rail and the end section 508 of the guide rail are connected and form a guide rail at the same horizontal position for the sliding of the seat cushion 4; in order to improve the safety of use, this The invention is provided with a self-locking device on the end section 508 of the guide rail. When the end section 508 of the guide rail is unfolded to 180 degrees with the armrest plate 501, the connection between the end section 508 and the middle section 509 of the guide rail resists each other to prevent the end section 508 of the guide rail from continuing to rotate.

As shown in Figures 1, 2, 4 and 5, the guide rail plate 5 consists of an armrest plate 501, a guide rail initial section 502, a second polished rod 503, a second motor 504, a first small gear 505, and a first large gear 506 , the second large gear 507, the end section of the guide rail 508, the middle section of the guide rail 509, the second small gear 510 and the third polished rod 511. The initial section of the guide rail 502 is fixed on the wheelchair (transmission plate 8), and there is a protrusion on the inside of the armrest plate 501. There is an inner recess at the opposite position on the other side, and the inner protrusion is the guide rail middle section 509. The guide rail initial section 502 and the guide rail end section 508 are provided at both ends of the guide rail middle section 509 and are connected with them. The third polished rod 511 is fixedly connected to one end of the guide rail middle section 509. And the middle section 509 of the guide rail can rotate relative to the initial section 502 of the guide rail, the second polished rod 503 is fixedly connected to one end of the end section 508 of the guide rail, and the end section 508 of the guide rail can rotate relative to the armrest plate 501, and the end section 508 of the guide rail can be received into the inner recess of the armrest plate 501 or It is level with the armrest plate 501 (180 degrees), and there is a self-locking device at the guide rail. That is, when the end section 508 of the guide rail is unfolded to 180 degrees with the armrest plate 501, it will butt against the guide rail 509 on the armrest plate 501, making it It won't continue to rotate.

As shown in Figures 1-2 and 6-7, the seat cushion 4 consists of a clamping mechanism 401, a side plate 402, a worm 403, a first polished rod 404, a bevel gear 405, a bottom plate 406, a first motor 407, and a short polished rod 408 , the back plate 409, the support plate 410 and the upper plate 411 are constituted. The side plates 402 are arranged on both sides of the bottom plate 406. There are four clamping mechanisms 401, which are respectively fixed on the four corners of the bottom plate 406. The clamping mechanism 401 is provided with a worm 403. , there are two first polished rods 404, and the two ends of each first polished rod 404 are respectively arranged on the worms 403 of the two clamping mechanisms 401, and the two first polished rods 404 are parallel, and the middle and short sides of each first polished rod 404 are Bevel gears 405 are provided at both ends of the polished rod 408. The short polished rod 408 and the first polished rod 404 are meshed and connected through the bevel gears 405. The support plate 410 is arranged above the clamping mechanism 401, and the upper plate 411 is located above the support plate 410. Under the action of the clamping mechanism 401, the upper plate 411 can descend to a certain extent.

As shown in Figure 8, the clamping mechanism 401 is composed of a base 4011, a rocker lever 4012, a vertical arm 4013, a fixed groove 4014, a spring 4015, a movable block 4016, a fixed block 4017, a worm gear 4018 and a rubber ball 4019. The base 4011 is fixed on the bottom plate 406. There is a chute on the lower right side of the base 4011. The middle hole of the rocker lever 4012 and the hole on the base 4011 are connected through a pin. The rocker lever 4012 can rotate with the hole as the axis; The vertical arm 4013 and the rocker arm rod 4012 are connected through a pin. The vertical arm 4013 can only move vertically up and down due to the limitation of the fixed groove 4014. The spring 4015 is installed on the fixed groove 4014, and under the action of the rocker arm rod 4012 down, and can slide up and down simultaneously with the fixing groove 4014.

As shown in the figure, the main working process of the present invention is as follows: when a person in a wheelchair is to be moved into a car, the person sits on the upper plate 411 of the seat cushion 4, presses the control switch, and the cylinder 201 starts to inhale air. The slider 205 on it starts to move forward, and the slider 205 on the upper part of the same side also slides forward. The entire lifting mechanism 2 drives the seat cushion 4 to rise to the designated position (controlled by the air intake volume of the cylinder 201, that is, the air intake on the transfer plate 8 The right section of the guide rail initial section 502 is at the same height as the left end of the guide rail middle section 509 in the guide rail plate 5; then the third motor 7 provided on the wheelchair frame is operated to rotate the guide rail plate 5. When the guide rail plate 5 rotates 30 degrees, the third motor 7 is controlled simultaneously. The second motor 504 starts to work, and the end section 508 of the guide rail expands at the same time, and finally the guide rail plate 5 becomes horizontal. At this time, the initial section 502 of the guide rail, the middle section 509 of the guide rail, and the end section 508 of the guide rail are level, and the self-locking device is turned on to fasten the three to form guide rail, and then move the wheelchair until the end section 508 of the guide rail is placed on the seat, then the first motor 407 is operated, and the two rubber balls 4019 are clamped with the guide rail under the action of the clamping mechanism 401 and the human gravity. The worm 403 and the worm gear 4018 make the rubber ball 4019 of the clamping mechanism 401 roll forward, and the seat cushion 4 drives along the track toward the car seat, so that the seat cushion 4 moves to the car. After the seat cushion 4 breaks away from the wheelchair and enters the car, press another button. By controlling the switch, the guide rail plate 5 is automatically retracted, and then the cylinder 201 begins to deflate, and the lifting mechanism 2 is lowered to the original position. Then the back of the wheelchair can be turned down, folded, and stored in the trunk of the car.

When a person wants to leave the car, he puts the wheelchair beside the car and presses the control button. Similarly, the lifting mechanism 2 of the wheelchair drives the wheelchair to rise. The guide rail plate 5 unfolds outwards and rests on the car seat cushion. Adjust the angle to lift the guide rail. The end section 508 is inserted between the rubber balls 4019 of the seat cushion, and the wheels are automatically clamped. When the switch is turned on again, the rubber ball 4029 of the seat cushion rotates and moves along the track driven by the first motor 407 until the seat cushion returns to the wheelchair. Then the guide rail plate 5 is automatically retracted to its original position, and the lifting mechanism 2 is lowered to the normal height.

Claims (7)

1. The utility model provides a help people to go up wheel chair, including folding wheelchair frame, wheelchair frame footing is equipped with front wheel (1) and rear wheel (6), characterized by still is equipped with lifting mechanism (2) on the wheelchair frame, handrail (3), cushion (4), guide rail board (5), third motor (7) and controller, be equipped with the control switch who is connected with the controller on handrail (3), third motor (7) are connected with guide rail board (5), control guide rail board (5) rotate, guide rail board (5) are parallel with handrail (3) when not working, lifting mechanism (2) top is equipped with slide rail (204), slide rail (204) are connected with transfer board (8), transfer board (8) activity sets up on the wheelchair frame, under lifting mechanism (2) effect, transfer board (8) can slide on the wheelchair frame from top to bottom, be equipped with guide rail first section (502) on transfer board (8), cushion (4) are placed on guide rail first section (502), guide rail board (5) and handrail (3) set up in wheelchair frame both sides, guide rail board (5) inboard is equipped with guide rail midsection (509), the outside is equipped with guide rail (508), under the effect of controller under the last section (509) can be carried out on the seat section (508), the last section of seat section of car seat (508) can be carried out under the effect of the control person, on the end section (509) can slide under the control of the control section (508) on the seat section; the cushion (4) is composed of clamping mechanisms (401), worms (403), first polished rods (404), bevel gears (405), a bottom plate (406), a first motor (407), short polished rods (408), a rear plate (409), a supporting plate (410) and a seat plate (11), wherein the number of the clamping mechanisms (401) is 4, the clamping mechanisms (401) are respectively fixed at four corners of the bottom plate (406), the two worms (403) are arranged on the clamping mechanisms (401), the number of the first polished rods (404) is two, two ends of each first polished rod (404) are respectively arranged on the two worms (403), the middle part of each first polished rod (404) and the middle part of the short polished rod (408), two end heads and a transmission shaft of the first motor (407) are respectively provided with bevel gears (405), the bevel gears (405) on the first motor (407) are meshed with the bevel gears (405) on the middle part of the short polished rod (408), the short polished rod (408) is driven to rotate, the short polished rod (408) is connected with the end heads of the first polished rod (404) through the bevel gears (405) in a meshed mode, and the cushion (4) is driven to slide on a guide rail; the top of the clamping mechanism (401) penetrates out of the upper part of the supporting plate (410), and the upper plate (411) is positioned at the top of the clamping mechanism (401); the clamping mechanism (401) is composed of a base (4011), a rocker arm rod (4012), a vertical arm (4013), a fixed groove (4014), a spring (4015), a movable block (4016), a fixed block (4017), a worm wheel (4018) and a rubber ball (4019), wherein the base (4011) is fixed on a bottom plate (406), a chute is formed in the right lower side of the base (4011), the fixed block (4017) is fixed at the right lower end of the base (4011), the movable block (4016) is movably arranged on the chute, a middle hole of the rocker arm rod (4012) is connected with a corresponding hole in the base (4011) through a pin shaft, the rocker arm rod (4012) can rotate by taking the middle hole as an axle center, one end of the rocker arm rod (4012) is connected with the movable block (4016), the other end of the rocker arm rod (4014) is connected with the vertical arm (4013), the fixed groove (4014) is sleeved outside the vertical arm (4013) to play a guiding role, the spring (4015) is arranged at the top of the vertical arm (4013), the upper plate (411) is mounted on the spring (4015), the movable block (4016) is movably arranged at the right lower end of the bottom of the base (4011), the movable block (4016) is provided with a worm wheel (4017) and is connected with the corresponding shaft, and the two worm wheels (4018) are connected with the worm wheel (4018) through the worm shafts and the worm (401) are connected with the worm (401).

2. The upper wheel chair for assisting persons according to claim 1, wherein the lifting mechanism (2) comprises a cylinder base and a sliding rail (204), the cylinder base is arranged at the bottom of the wheelchair frame, the cylinder (201) and the supporting blocks (206) are arranged on two opposite sides of the cylinder base, sliding blocks (205) are arranged on the cylinder rod of the cylinder (201), the supporting blocks (206) and the sliding rail (204), two sliding blocks (205) are arranged on the sliding rail (204), bearing supports (202) are arranged on the sliding blocks (205), a group of aluminum rods (203) are in cross connection to form a plurality of connected scissor fork structures, the ends of the two aluminum rods (203) at the bottom of the scissor fork structures are respectively arranged on the cylinder rod of the cylinder (201) and the bearing supports (202) of the supporting blocks (206), the ends of the two aluminum rods (203) at the top are respectively arranged on the bearing supports (202) on the sliding rail (204), a conveying plate (8) is arranged on the sliding rail (204), the conveying plate (8) is movably arranged on the wheelchair frame, and under the action of the mechanism (2), the conveying plate (8) can be movably connected with the wheelchair frame and the wheelchair controller (201).

3. The chair for helping people to get on wheels according to claim 1, characterized in that the cushion (4) is provided with side plates (402) on two sides of the bottom plate (406), a rear plate (409) is arranged at the rear, the bottom plate (406), the side plates (402), the rear plate (409) and the supporting plate (410) are connected to form a space, and the clamping mechanism (401), the first polish rod (404), the bevel gear (405) and the first motor (407) are positioned in the space.

4. The chair for helping people to get on the wheels according to claim 1, characterized in that the end part of the rocker arm lever (4012) is provided with an inclined guide groove (420), and the vertical arm (4013) is connected with the inclined guide groove (420) through a pin shaft.

5. The chair for wheels on a walker as claimed in claim 1 wherein the top of the vertical arm (4013) is located in the middle of the fixed slot (4014) and the spring is located in the fixed slot (4014).

6. The chair for assisting a person to go up a wheel according to claim 1, wherein the guide rail plate (5) is composed of a guide rail initial section (502), a handrail plate (501) and a second polish rod (503), a second motor (504), a second large gear (507) and a guide rail end section (508) which are arranged on the handrail plate (501), a protruding part, a rotating shaft and the second motor (504) are arranged on the inner side of the handrail plate (501), the protruding part is a guide rail middle section (509), a third polish rod (511) is movably arranged at the right end part of the guide rail initial section (502), the inner end of the guide rail middle section (509) is fixedly connected with the third polish rod (511), one end of the third polish rod (511) is provided with the second large gear (507), a transmission shaft of the third motor (7) is connected with the second small gear (510), the second small gear (510) is meshed with the second large gear (507) and used for controlling the rotation of the third polish rod (511), the third polish rod (511) drives the handrail plate (501) to be unfolded or folded, an inner concave part is arranged at the position corresponding to the protruding part, the outer side of the handrail plate (501) is movably connected with the third polish rod (511), the outer end part of the guide rail middle section (502) is provided with the second polish rod (506) is movably connected with the second polish rod (503), the first pinion (505) is connected with the first bull gear (506) in a meshed manner and is used for controlling the second polished rod (503) to rotate, the second polished rod (503) drives the guide rail end section (508) to be unfolded or folded, the guide rail end section (508) is positioned on the concave part when being folded, the guide rail end section (508) is kept horizontal with the guide rail middle section (509) when being unfolded, the rotating shaft is connected with the third motor (7), the guide rail plate (5) in a vertical state can be rotated to be in a horizontal state, and the guide rail initial section (502), the guide rail middle section (509) and the guide rail end section (508) are connected and form a guide rail at the same horizontal position and are used for sliding of the cushion (4).

7. The chair for helping people to get on a vehicle according to claim 6, wherein the end section (508) of the guide rail is provided with a self-locking device, and when the end section (508) of the guide rail is unfolded to 180 degrees with the armrest plate (501), the joint of the end section (508) of the guide rail and the middle section (509) of the guide rail is propped against each other, so that the end section (508) of the guide rail is prevented from rotating continuously.