Integrated lift platform vehicle side sliding door wheelchair lift

Abstract

The utility model discloses a vehicle side sliding door wheelchair receiving and delivering device of integrated lifting platform relates to vehicle auxiliary function technical field, including folding guide rail side slide lifting mechanism and folding wheelchair bracket, the design of folding guide rail side slide lifting mechanism and folding wheelchair bracket makes the compact storage of device when not using, does not occupy too much space, and the flatness of in -vehicle floor is kept simultaneously, and the passenger walks and vehicle internal layout are convenient. Through the butt joint groove that sets up, can with the wheel of wheelchair butt joint, is convenient for the fixation of wheelchair, through the clamping of friction clamping side plate to wheelchair, the stability and safety of wheelchair in the transportation process are ensured, the accidental injury that causes because of the wobble or the slide is avoided, and the design of blocking flap further strengthens the security of device.

Description

Technical Field

[0001] This utility model relates to the field of vehicle auxiliary function technology, specifically to a vehicle side sliding door wheelchair transfer device with an integrated lifting platform. Background Technology

[0002] Providing convenience for people with disabilities, enabling them to easily get in and out of vehicles in wheelchairs, has become a focus of attention in the automotive design field. Under current technological conditions, some passenger cars integrate wheelchair lifts to provide transportation services for people with disabilities. However, these wheelchair lifts typically rely on complex mechanical components, such as multi-level lifting arms, folding mechanisms, and electronic control systems to complete the wheelchair transfer task. This design often results in a large system size and high maintenance costs. Furthermore, when the wheelchair is not in use, these devices occupy valuable interior space. Simultaneously, the fixing mechanism between the wheelchair and the lifting platform is complex and cumbersome to operate, causing additional inconvenience to users. Therefore, we propose a vehicle side sliding door wheelchair transfer device with an integrated lifting platform. Utility Model Content

[0003] The purpose of this invention is to address the problem that wheelchair lifting devices occupy valuable interior space in vehicles when wheelchairs are not in use. Furthermore, the complex fixing mechanism between the wheelchair and the lifting platform, coupled with cumbersome operation, causes additional inconvenience to users. This invention provides a wheelchair transfer device with an integrated lifting platform for vehicle side sliding doors.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A vehicle side sliding door wheelchair transfer device with an integrated lifting platform includes a folding guide rail side sliding lifting mechanism and a folding wheelchair bracket. The folding guide rail side sliding lifting mechanism includes two parallel horizontal electric screw slides and two lifting electric screw slides. The slide transmission end of the horizontal electric screw slide is fixedly connected to a geared motor tilting seat, and the geared motor tilting seat is fixedly connected to the bottom outer side of the lifting electric screw slide. The folding wheelchair bracket includes a support and storage frame and a wheelchair support plate. The support and storage frame is fixedly connected to the slide transmission end of the lifting electric screw slide, and the wheelchair support plate is fixedly connected to the outer end of the support and storage frame through a 90-degree limiting positioning damping hinge. The inner side of the wheelchair support plate has two roller docking grooves corresponding to the wheelchair's moving wheels, and one side of the wheelchair support plate has a guide ramp. The roller docking grooves are arranged through the guide ramp, and the inner walls of the two roller docking grooves are provided with friction clamping side plates. A blocking flap is provided at one end of the roller docking groove corresponding to the guide ramp.

[0006] Furthermore, a friction clamping side plate is provided on each of the two side walls of the roller docking groove. The friction clamping side plate on the inner side is fixedly connected to the side wall of the roller docking groove, and a side plate insert rod is fixedly connected to the outer side of the friction clamping side plate on the outer side. A movable slot is opened on the outer side wall of the roller docking groove corresponding to the side plate insert rod. The side plate insert rod is movably inserted into the movable slot on the side wall of the roller docking groove. A side plate electromagnet is fixedly connected to the bottom of the movable slot on the side wall of the roller docking groove. A side plate pre-compression spring is fixedly connected between the side plate electromagnet and the side plate insert rod.

[0007] Furthermore, rotating convex shafts are fixedly connected to both sides of the outer end of the barrier flap, and the rotating convex shafts are rotatably connected to the inner walls of both sides of the roller docking groove. A circular groove is opened at the bottom of the roller docking groove corresponding to the center of the barrier flap, and a flap ejection spring is fixedly connected to the bottom of the circular groove. The other end of the flap ejection spring is fixedly connected to the bottom of the barrier flap with its face upward, and a flap electromagnet is embedded at the bottom of the roller docking groove corresponding to the front end of the barrier flap.

[0008] Furthermore, the drive motor of the horizontal electric lead screw slide is located on the side of the guide rail facing the inside of the vehicle, and the drive motor of the lifting electric lead screw slide is located on the opposite side of the two guide rails, and the upper outer side of the deceleration motor tilting seat is rounded.

[0009] Furthermore, the upper side of the support and storage frame is provided with an extension end.

[0010] Furthermore, the roller docking groove includes a strip steel plate and a rubber friction block. The rubber friction block is fixedly connected to the opposite side of the roller docking groove, and friction grid textures are evenly distributed on the opposite side of the rubber friction block.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. The design of this utility model's folding guide rail side-sliding lifting mechanism and folding wheelchair bracket allows the device to be compactly stored when not in use, occupying minimal space while maintaining a flat floor, facilitating passenger movement and vehicle interior layout. During use, the horizontal and lifting electric screw slides drive the wheelchair smoothly and accurately, significantly reducing operational difficulty and physical exertion. The docking slots allow for easy engagement with the wheelchair wheels, facilitating wheelchair fixation. Friction clamping side plates further secure the wheelchair during transport, ensuring stability and safety, preventing accidental injuries from shaking or slipping. The barrier flap design further enhances safety. When the wheelchair is pushed into the roller docking slot, the barrier flap springs up during lifting, blocking the outer edges of the wheels and effectively preventing the wheelchair from detaching from the docking slot during lifting, thus enhancing the device's stability and safety.

[0013] 2. This utility model utilizes a side plate electromagnet. After the wheelchair support plate reaches the ground, power is supplied to the electromagnet, attracting the side plate insert rod and causing the outer friction clamping side plate to move outward. Once the wheelchair support plate is lifted off the ground, power is cut off, and the outer friction clamping side plate, under the elastic force of the side plate pre-compression spring, pushes out, clamping and fixing the wheelchair wheels on both sides securely within the movable slots. This facilitates transportation and prevents accidental injuries caused by wheelchair swaying or slipping during transport, enhancing the device's safety and practicality. Furthermore, the coordinated design of the side plate electromagnet and the side plate pre-compression spring makes clamping and releasing the friction clamping side plate simpler and faster, improving the device's efficiency. In addition, customers can customize wheelchair support plates with different sized roller docking slots according to their needs, adapting to different wheelchair sizes and improving the device's versatility and adaptability.

[0014] 3. This utility model utilizes a roller docking groove composed of a strip steel plate and rubber friction blocks. This not only enhances the structural strength of the docking groove but also increases the friction between the rubber friction blocks and the wheelchair wheels through the raised friction grid pattern, further ensuring the stability and safety of the wheelchair during transportation. The use of rubber friction blocks also reduces wear between the wheelchair wheels and the docking groove to a certain extent, extending the service life of the device. Simultaneously, the combined design of the strip steel plate and rubber friction blocks simplifies and speeds up the manufacturing and installation of the roller docking groove, reducing production costs and improving the cost-effectiveness of the device. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention;

[0016] Figure 2 This is a top sectional view of the present invention;

[0017] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a partial front sectional view of the wheelchair support plate of this utility model.

[0019] In the diagram: 1. Horizontal electric lead screw slide; 2. Gear motor tilting seat; 3. Lifting electric lead screw slide; 4. Loading and storage frame; 5. Ninety-degree limit positioning damping hinge; 6. Wheelchair support plate; 7. Roller docking groove; 8. Friction clamping side plate; 9. Guide ramp; 10. Barrier flap; 11. Side plate insert rod; 12. Side plate electromagnet; 13. Side plate pre-compression spring; 14. Flip-out spring; 15. Flip-out electromagnet. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0021] Please see Figure 1 - Figure 4 This utility model provides a vehicle side sliding door wheelchair transfer device with an integrated lifting platform, including a folding guide rail side sliding lifting mechanism and a folding wheelchair bracket. The folding guide rail side sliding lifting mechanism includes two parallel horizontal electric screw slides 1 and two lifting electric screw slides 3. The slide transmission end of each horizontal electric screw slide 1 is fixedly connected to a reduction motor tilting seat 2, and the reduction motor tilting seat 2 is fixedly connected to the bottom outer side of the lifting electric screw slide 3. The folding wheelchair bracket includes a support and storage frame 4 and a wheelchair support plate 6. The storage frame 4 is fixedly connected to the slide transmission end of the lifting electric screw slide 3, and the wheelchair support plate 6 is fixedly connected to the outer end of the storage frame 4 through a 90-degree limiting positioning damping hinge 5. The inner side of the wheelchair support plate 6 is provided with two roller docking grooves 7 corresponding to the position of the wheelchair's moving wheels, and a guide ramp 9 is provided on one side of the wheelchair support plate 6. The roller docking grooves 7 are set through the guide ramp 9, and friction clamping side plates 8 are provided on the inner walls of the two roller docking grooves 7. A blocking flap 10 is provided at one end of the roller docking grooves 7 corresponding to the guide ramp 9.

[0022] The working principle and usage process of this utility model are as follows: In use, the folding guide rail side-sliding lifting mechanism drives the lifting electric screw slide 3 to rotate 90 degrees via the geared motor flipping seat 2, thereby achieving the folding and unfolding of the horizontal electric screw slide 1 and the lifting electric screw slide 3. Through the folding wheelchair bracket, the carrying and storage frame 4 and the wheelchair support plate 6 are connected by a 90-degree limiting positioning damping hinge 5, which limits the rotation angle and provides damping, allowing the wheelchair support plate 6 to overlap with the carrying and storage frame 4 for storage and unfolding. In the folded state, the geared motor flipping seat 2 is located on the outermost side of the horizontal electric screw slide 1, and the lifting electric screw slide 3 is folded upwards on top of the horizontal electric screw slide 1. The carrying and storage frame 4 and the wheelchair support plate 6 are overlapped and folded into a flat plate, then stacked on top of the geared motor flipping seat 2. The entire device is mounted on the vehicle... On the chassis at the opening position of the vehicle's middle door, the overlapping flat plate of the folded carrying and storage frame 4 and the wheelchair support plate 6 is flush with the vehicle's interior floor. When unfolded, the geared motor flipping seat 2 drives the lifting electric screw slide 3 to rotate 90 degrees, causing the lifting electric screw slide 3 to switch to a vertical position. The wheelchair support plate 6 is manually flipped open, and then the carrying and storage frame 4 is lowered by the lifting electric screw slide 3, causing the wheelchair support plate 6 to fall to the ground. The wheelchair is pushed onto the wheelchair support plate 6 by the guide ramp 9, and the wheels are inserted into the roller docking groove 7 and clamped and fixed by the friction clamping side plate 8. Then, the wheelchair support plate 6 supporting the wheelchair is raised by the lifting electric screw slide 3 until the bottom of the carrying and storage frame 4 and the wheelchair support plate 6 passes the upper side of the horizontal electric screw slide 1. Then, the wheelchair support plate 6 is moved horizontally into the vehicle by the horizontal electric screw slide 1 until the entire wheelchair support plate 6 is inside the vehicle.

[0023] The design of the folding guide rail side-sliding lifting mechanism and the folding wheelchair bracket allows the device to be compactly stored when not in use, occupying minimal space while maintaining a flat floor, facilitating passenger movement and vehicle interior layout. During use, the horizontal electric screw slide 1 and the lifting electric screw slide 3 drive the wheelchair smoothly and accurately, significantly reducing operational difficulty and physical exertion. The docking slot 7 allows for easy engagement with the wheelchair wheels, facilitating wheelchair fixation. The friction clamping side plate 8 further secures the wheelchair, ensuring stability and safety during transport and preventing accidental injuries caused by shaking or slipping. The barrier flap 10 further enhances the device's safety. When the wheelchair is pushed into the roller docking slot 7, the barrier flap 10 springs up during lifting, blocking the outer sides of the wheels and effectively preventing the wheelchair from detaching from the docking slot 7 during lifting, thus enhancing the device's stability and safety.

[0024] In this embodiment, preferably, a friction clamping side plate 8 is provided on each of the two side walls of the roller docking groove 7. The friction clamping side plate 8 on the inner side is fixedly connected to the side wall of the roller docking groove 7, and a side plate insert rod 11 is fixedly connected to the outer side of the friction clamping side plate 8 on the outer side. A movable slot is provided on the outer side wall of the roller docking groove 7 corresponding to the side plate insert rod 11. The side plate insert rod 11 is movably inserted into the movable slot on the side wall of the roller docking groove 7. A side plate electromagnet 12 is fixedly connected to the bottom of the movable slot on the side wall of the roller docking groove 7. A side plate pre-compression spring is fixedly connected between the side plate electromagnet 12 and the side plate insert rod 11. 13; Power is supplied to the side plate electromagnet 12 after the wheelchair support plate 6 reaches the ground. The electromagnet 12 attracts the side plate insert 11, causing the outer friction clamping side plate 8 to move outwards. Once the wheelchair support plate 6 is lifted off the ground, the power is cut off, and the outer friction clamping side plate 8 is pushed out by the elastic force of the side plate pre-compression spring 13, clamping and fixing the wheelchair wheels on both sides. This makes the wheelchair wheels more securely fixed in the movable slots, facilitating transportation and preventing accidental injuries caused by wheelchair swaying or slipping during transport, thus enhancing the safety and practicality of the device. Simultaneously, the coordinated design of the side plate electromagnet 12 and the side plate pre-compression spring 13 makes the clamping and releasing operation of the friction clamping side plate 8 simpler and faster, improving the efficiency of the device. Furthermore, customers can customize wheelchair support plates 6 with different sizes of roller docking slots 7 according to their needs, adapting to different wheelchair sizes and improving the versatility and adaptability of the device.

[0025] In this embodiment, preferably, rotating convex shafts are fixedly connected to both sides of the outer end of the barrier flap 10, and the rotating convex shafts are rotatably connected to the inner walls of both sides of the roller docking groove 7. A circular groove is formed at the bottom of the roller docking groove 7 corresponding to the center of the barrier flap 10, and a flap ejection spring 14 is fixedly connected to the bottom of the circular groove. The other end of the flap ejection spring 14 is fixedly connected to the bottom of the barrier flap 10 with its upper end facing upward. A flap electromagnet 15 is embedded at the bottom of the roller docking groove 7 corresponding to the front end of the barrier flap 10. Through the provided flap electromagnet 15, the wheelchair... After the support plate 6 reaches the ground, the flip-plate electromagnet 15 is energized. The electromagnet 15 attracts the front end of the blocking flip plate 10, preventing it from overcoming the elastic force of the flip-plate ejection spring 14 and maintaining contact with the bottom of the roller docking slot 7. At this point, the wheelchair can pass normally through the blocking flip plate 10. After the wheelchair support plate 6 is lifted off the ground, the power is cut off, and the flip-plate ejection spring 14 lifts the blocking flip plate 10, raising its rear end to block the outer side of the wheelchair wheels, effectively preventing the wheelchair from detaching from the docking slot 7 due to swaying during lifting and lowering, further enhancing the stability and safety of the device. Simultaneously, the coordinated design of the flip-plate electromagnet 15 and the flip-plate ejection spring 14 makes the flipping and resetting operation of the blocking flip plate 10 simpler and faster, improving the efficiency of the device. Furthermore, the guide ramp 9 facilitates the pushing and pushing of the wheelchair, improving the device's convenience.

[0026] In this embodiment, preferably, the drive motor of the horizontal electric lead screw slide 1 is located on the side of the guide rail facing the vehicle interior, and the drive motor of the lifting electric lead screw slide 3 is located on the opposite side of the two guide rails. The outer upper end of the geared motor flipping seat 2 is rounded. The location of the drive motor of the horizontal electric lead screw slide 1 on the side of the guide rail facing the vehicle interior can make full use of the space under the vehicle. The location of the drive motor of the lifting electric lead screw slide 3 on the opposite side of the two guide rails ensures that the drive motor of the lifting electric lead screw slide 3 does not affect the folding and storage of the lifting electric lead screw slide 3, while providing a limit for supporting the storage frame 4. The rounded design of the outer upper end of the geared motor flipping seat 2 ensures that the lifting electric lead screw slide 3 can flip normally.

[0027] In this embodiment, preferably, the upper side of the support and storage frame 4 is provided with an extension end; through the provided extension end, the extension end covers a larger area when folded, which can provide more space for the support and storage frame 4 to move into the vehicle, making it easier for the wheelchair support plate 6 to be fully unfolded and smoothly support the wheelchair into the vehicle.

[0028] In this embodiment, preferably, the roller docking groove 7 includes a strip steel plate and a rubber friction block. The rubber friction block is fixedly connected to the opposite side of the roller docking groove 7, and friction grid textures are evenly distributed on the opposite side of the rubber friction block. The roller docking groove 7, formed by the combination of the strip steel plate and the rubber friction block, not only enhances the structural strength of the docking groove, but also increases the friction between the roller and the wheelchair wheel through the friction grid textures on the rubber friction block, further ensuring the stability and safety of the wheelchair during transportation. The use of rubber friction blocks can also reduce the wear between the wheelchair wheel and the docking groove to a certain extent, extending the service life of the device. At the same time, the combined design of the strip steel plate and the rubber friction block makes the manufacturing and installation of the roller docking groove 7 simpler and faster, reduces production costs, and improves the cost-effectiveness of the device.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle side sliding door wheelchair transfer device with an integrated lifting platform, characterized in that: The system includes a folding guide rail side-sliding lifting mechanism and a folding wheelchair bracket. The folding guide rail side-sliding lifting mechanism includes two parallel horizontal electric screw slides (1) and two lifting electric screw slides (3). The slide transmission end of the horizontal electric screw slide (1) is fixedly connected to a geared motor flip seat (2), and the geared motor flip seat (2) is fixedly connected to the bottom outer side of the lifting electric screw slide (3). The folding wheelchair bracket includes a support and storage frame (4) and a wheelchair support plate (6). The support and storage frame (4) is connected to the slide of the lifting electric screw slide (3). The transmission end is fixedly connected, and the wheelchair support plate (6) is fixedly connected to the outer end of the support and storage frame (4) through a ninety-degree limiting positioning damping hinge (5). The inner side of the wheelchair support plate (6) is provided with two roller docking grooves (7) corresponding to the position of the wheelchair's moving wheels, and a guide ramp (9) is provided on one side of the wheelchair support plate (6). The roller docking grooves (7) are set through the guide ramp (9), and friction clamping side plates (8) are provided on the inner walls of the two roller docking grooves (7). A blocking flap (10) is provided at one end of the roller docking groove (7) corresponding to the guide ramp (9).

2. The vehicle side sliding door wheelchair transfer device with an integrated lifting platform according to claim 1, characterized in that: The roller docking groove (7) has a friction clamping side plate (8) on each of its two side walls. The friction clamping side plate (8) on the inner side is fixedly connected to the side wall of the roller docking groove (7). The friction clamping side plate (8) on the outer side is fixedly connected to a side plate insert rod (11). The outer side wall of the roller docking groove (7) has a movable slot corresponding to the side plate insert rod (11). The side plate insert rod (11) is movably inserted into the movable slot of the side wall of the roller docking groove (7). The bottom of the movable slot of the side wall of the roller docking groove (7) is fixedly connected to a side plate electromagnet (12). A side plate pre-compression spring (13) is fixedly connected between the side plate electromagnet (12) and the side plate insert rod (11).

3. A vehicle side sliding door wheelchair transfer device with an integrated lifting platform according to claim 1 or 2, characterized in that: The outer ends of the barrier flap (10) are fixedly connected to rotating convex shafts, and the rotating convex shafts are rotatably connected to the inner walls of the roller docking groove (7) on both sides. The bottom of the roller docking groove (7) is provided with a circular groove corresponding to the center of the barrier flap (10), and a flap ejection spring (14) is fixedly connected to the bottom of the circular groove. The other end of the flap ejection spring (14) is fixedly connected to the bottom of the barrier flap (10) with its upper end facing upward. A flap electromagnet (15) is embedded at the bottom of the roller docking groove (7) corresponding to the front end of the barrier flap (10).

4. The vehicle side sliding door wheelchair transfer device with an integrated lifting platform according to claim 1, characterized in that: The drive motor of the horizontal electric lead screw slide (1) is located on the side of the guide rail facing the inside of the vehicle, and the drive motor of the lifting electric lead screw slide (3) is located on the opposite side of the two guide rails. The upper outer side of the deceleration motor flipping seat (2) is rounded.

5. A vehicle side sliding door wheelchair transfer device with an integrated lifting platform according to claim 1, characterized in that: The upper side of the support and storage frame (4) is provided with an extension end.

6. The vehicle side sliding door wheelchair transfer device with an integrated lifting platform according to claim 1, characterized in that: The roller docking groove (7) includes a strip steel plate and a rubber friction block. The rubber friction block is fixedly connected to the opposite side of the roller docking groove (7), and friction grid ridges are evenly distributed on the opposite side of the rubber friction block.

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