A lightweight, detachable smart electric wheelchair

Abstract

This invention discloses a lightweight, detachable intelligent electric wheelchair, including a power chassis with drive wheels mounted on both sides and an operating joystick positioned upwards at the front. It also includes a seat platform with a backrest rotatably connected to its rear. An outer support ramp is rotatably connected to the lower rear end of the seat platform. A connecting shaft, rotatably connected to the seat platform, is located on the lower side of the backrest. Both ends of the connecting shaft are equipped with transmission gears. Both ends of the upper part of the outer support ramp are equipped with drive gears meshing with the corresponding transmission gears. A strip-shaped storage slot extends through the outer support ramp, and an inner support ramp is rotatably connected within this slot. The upper end of the power chassis has a first connecting slot connecting to the lower edge of the outer support ramp and a second connecting slot connecting to the lower edge of the inner support ramp. This invention allows for switching between electric wheelchair and balance scooter use, providing young people with a stylish and practical travel option.

Description

Technical Field

[0001] This invention relates to the field of electric wheelchair technology, and in particular to a lightweight, detachable, intelligent electric wheelchair. Background Technology

[0002] With continuous technological advancements, electric wheelchairs have become a key assistive device in modern medical rehabilitation, elderly care, and mobility for people with disabilities. Combining advanced electronic technology and ergonomic design, they provide an efficient and comfortable mobility solution for people with limited mobility. Electric wheelchairs have a wide range of applications, primarily covering the following areas: Medical Rehabilitation: In hospitals, clinics, and rehabilitation centers, electric wheelchairs provide convenient mobility for patients and the injured. Home Care: Many elderly and disabled people also require wheelchairs for mobility at home. Public Transportation: The convenience and flexibility of electric wheelchairs make them an ideal choice for public transportation, such as in shopping malls, parks, and museums. Furthermore, due to their comfort and portability, electric wheelchairs are gradually attracting younger consumers.

[0003] However, despite significant technological advancements in electric wheelchairs, some limitations remain. Most electric wheelchairs currently on the market are single-function, primarily used as wheelchairs. When not in use, these devices often sit idle, resulting in resource waste. Furthermore, young people or those with some mobility may desire additional functions beyond wheelchairs, such as using them as self-balancing scooters or for transporting lightweight items. Self-balancing scooters, in particular, have become a popular mode of transportation for young people. Therefore, developing an electric device that combines the functions of a wheelchair and a self-balancing scooter holds great market potential. Summary of the Invention

[0004] The purpose of this invention is to provide a lightweight, detachable, intelligent electric wheelchair that can be switched between electric wheelchair and balance scooter, providing young people with a stylish and practical travel option to meet different usage needs.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0006] A lightweight, detachable intelligent electric wheelchair includes a power chassis, drive wheels mounted on both sides of the power chassis, a power battery disposed inside the power chassis, an operating rudder stick disposed upward at the front of the power chassis, and throttle handles disposed on both sides at the upper end of the operating rudder stick for controlling the two drive wheels respectively.

[0007] It also includes a seat platform, a backrest panel rotatably connected to the rear of the seat platform, a seat cushion provided at the upper end of the seat platform, a backrest cushion provided at the front side of the backrest panel, an outer support inclined plate rotatably connected to the lower rear end of the seat platform, a connecting shaft rotatably connected to the rear of the backrest panel, transmission gears provided at both ends of the connecting shaft, the upper part of the outer support inclined plate connecting to the seat platform near the connecting shaft, and drive gears meshing with corresponding transmission gears at both ends of the upper part of the outer support inclined plate.

[0008] A strip-shaped storage groove is provided in the middle of the outer support inclined plate, extending along its length. An inner support inclined plate that can rotate back and forth is rotatably connected in the strip-shaped storage groove. The upper end of the power chassis is provided with a first connecting slot that mates with the lower edge of the outer support inclined plate and a second connecting slot that mates with the lower edge of the inner support inclined plate. Both ends of the lower edge of the outer support inclined plate and both ends of the lower edge of the inner support inclined plate are provided with connecting holes extending inward. Both sides of the first connecting slot and the second connecting slot are provided with through holes that mate with the corresponding connecting holes.

[0009] Electromagnetic locks are installed in the corresponding perforations of the power chassis. The lock cylinder of each electromagnetic lock is a strip-shaped lock cylinder that can pass through the corresponding perforation and cooperate with the corresponding connection socket. The operating rudder is provided with an electric lock button for controlling the electromagnetic lock. After the lower edge of the outer support slope plate is connected to the first connection slot and the lower edge of the inner support slope plate is connected to the second connection slot, the lower edge of the inner support slope plate contacts the lower end of the seat platform, and the inner support slope plate and the outer support slope plate form an X shape.

[0010] By adopting the above technical solution, when it is needed to be used as an electric wheelchair, the outer support ramp is rotated outward. The rotation of the outer support ramp, through the connection between the transmission gear and the drive gear, causes the backrest to also rotate away from the seat platform, inserting the lower edge of the outer support ramp into the first connecting slot, and rotating the inner support ramp out of the strip-shaped storage slot, so that the lower end of the inner support ramp is inserted into the second connecting slot. At the same time, the strip-shaped lock core of the electromagnetic lock is controlled to extend into the connecting hole, so that the seat is fully unfolded and connected to the power base, and can then be used as an electric wheelchair.

[0011] When used as a cargo platform or balance scooter, first retract the bar lock core of the electromagnetic lock from the connection socket to remove the seat. Then rotate the inner support ramp into the bar storage slot of the outer support ramp. Rotate the outer support ramp towards the seat platform. Through the connection between the transmission gear and the drive gear, the backrest also rotates towards the seat platform. Finally, fold the seat down to use it as a cargo platform or balance scooter.

[0012] A further feature of the present invention is that: a retraction groove is provided at the lower end of the rear of the power chassis, a connecting rod capable of rotating back and forth is rotatably connected to one end of the top of the retraction groove, a support roller is rotatably mounted on the free end of the connecting rod, an electro-hydraulic support rod is rotatably connected between the other end of the top of the retraction groove and the side wall of the connecting rod, and a retraction button for controlling the electro-hydraulic support rod is provided on the operating rudder.

[0013] A further feature of the present invention is that: a connecting plate is provided on both sides of the middle part of the backrest panel, each connecting plate is rotatably connected to an armrest that can rotate back and forth, and a horizontal support bar is provided outward on the lower side of each connecting plate to support the lower side of the armrest. The horizontal support bar is used to support the armrest so that it can only rotate forward to the horizontal.

[0014] A further feature of the present invention is that each drive wheel integrates a hub motor.

[0015] A further feature of the present invention is that the upper end of the front part of the power chassis is rotatably connected to both sides of the operating rudder stick with a support foot pedal that can rotate back and forth.

[0016] A further feature of the present invention is that: both sides of the upper end of the power chassis are provided with water-blocking wheel covers for covering the upper part of the corresponding drive wheel.

[0017] A further feature of the present invention is that the first connecting slot allows the lower side of the outer support inclined plate to slide back and forth, the second connecting slot allows the lower side of the inner support inclined plate to slide back and forth, the through holes of the first connecting slot are located at both ends of its front side, and the through holes of the second connecting slot are located at both ends of its rear side.

[0018] In summary, the present invention has the following beneficial effects:

[0019] Firstly, the electric wheelchair of the present invention has the advantages of being portable and detachable. The seat and the power chassis are detachable. After the seat and the power chassis are connected, it can be used as an electric wheelchair. After the seat is removed, only the power chassis is left, which can be used as a cargo platform or a balance vehicle. It can be switched between electric wheelchair and balance vehicle, providing young people with a fashionable and practical travel option to meet different usage needs.

[0020] Secondly, the seat of the present invention can be folded. When it needs to be moved or disassembled, the seat can be controlled to fold automatically, making it easier to disassemble and move, and taking up less space during transportation and storage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2This is a schematic diagram of the overall structure of the power chassis;

[0023] Figure 3 It is a partial sectional view used to show the internal structure of the power chassis;

[0024] Figure 4 Used to demonstrate the connection between the outer and inner support inclined plates, as well as the connection between the transmission gear and the drive gear.

[0025] In the diagram: 1. Power chassis; 11. Water deflector cover; 12. Retraction slot; 13. Support foot pedal; 14. First connecting slot; 15. Second connecting slot; 16. Through hole; 2. Drive wheel; 21. Hub motor; 3. Connecting rod; 31. Support roller; 32. Electro-hydraulic support rod; 4. Control lever; 41. Throttle handle; 42. Retraction button; 43. Electric lock button; 5. Seat platform; 51. Seat cushion; 6. Backrest panel; 61. Backrest cushion; 62. Connecting plate; 63. Armrest; 64. Horizontal support bar; 65. Connecting shaft; 66. Transmission gear; 7. Outer support ramp; 71. Drive gear; 72. Strip storage slot; 73. Connecting socket; 8. Inner support ramp; 9. Electromagnetic lock; 91. Strip lock cylinder; 10. Power battery. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] Example, refer to Figure 1-4A lightweight, detachable intelligent electric wheelchair includes a power chassis 1. A drive wheel 2 is mounted on each of the two sides of the power chassis 1. Each drive wheel 2 integrates a hub motor 21. A water-retaining wheel cover 11 is provided on both sides of the upper end of the power chassis 1 to cover the upper part of the corresponding drive wheel 2. A retraction slot 12 is provided at the lower rear end of the power chassis 1, with a connecting rod 3 rotatably connected to the front end of the top of the retraction slot 12. A support roller 31 is rotatably mounted on the free end of the connecting rod 3. An electro-hydraulic support rod 32 is rotatably connected between the rear end of the top of the retraction slot 12 and the side wall of the connecting rod 3. An operating rudder 4 is provided at the front of the power chassis 1, with a supporting foot pedal 13 rotatably connected to both sides of the operating rudder 4 at the upper front end of the power chassis 1. When needed, the supporting foot pedal 13 can be flipped forward.

[0030] It also includes a seat platform 5, with a backrest 6 rotatably connected to the rear of the seat platform 5. A seat cushion 51 is provided at the upper end of the seat platform 5, and a backrest cushion 61 is provided at the front of the backrest 6. A connecting plate 62 is provided on both sides of the middle of the backrest 6. Each connecting plate 62 is rotatably connected to an armrest 63 that can rotate back and forth. A horizontal support bar 64 is provided outward from the bottom of each connecting plate 62 to support the armrest 63. The horizontal support bar 64 is used to support the armrest 63 so that it can only rotate forward to the horizontal. The lower rear end of the seat platform 5 is rotatably connected to an outer support ramp 7 that can rotate back and forth. The lower side of the backrest 6 is provided with a connecting shaft 65 that is rotatably connected to the rear of the seat platform 5. Both ends of the connecting shaft 65 are provided with a transmission gear 66. The upper part of the outer support ramp 7 is close to the connecting shaft 65 at the connection point with the seat platform 5. Both ends of the upper part of the outer support ramp 7 are provided with a drive gear 71 that meshes with the corresponding transmission gear 66. Through the connection between the transmission gear 66 and the drive gear 71, the backrest 6 and the outer support ramp 7 can rotate in the same direction.

[0031] A strip-shaped storage groove 72 extending along the length of the outer support inclined plate 7 is provided through the middle of the outer support inclined plate 7. An inner support inclined plate 8, which can rotate back and forth, is rotatably connected within the strip-shaped storage groove 72. The upper end of the power chassis 1 has a first connecting slot 14 that mates with the lower edge of the outer support inclined plate 7 and a second connecting slot 15 that mates with the lower edge of the inner support inclined plate 8. Both ends of the lower edge of the outer support inclined plate 7 and the lower edge of the inner support inclined plate 8 have inwardly extending connecting holes 73. Both sides of the first connecting slot 14 and the second connecting slot 15 have through holes 16 that mate with the corresponding connecting holes 73. The first connecting slot 14 allows the lower edge of the outer support inclined plate 7 to slide back and forth, and the second connecting slot 15 allows the lower edge of the inner support inclined plate 8 to slide back and forth. The through holes 16 of the first connecting slot 14 are located at its front ends, and the through holes 16 of the second connecting slot 15 are located at its rear ends.

[0032] An electromagnetic lock 9 is installed in the power chassis 1 at each corresponding through hole 16. The lock cylinder of each electromagnetic lock 9 is a strip lock cylinder 91 that can pass through the corresponding through hole 16 and cooperate with the corresponding connection hole 73. After the lower edge of the outer support slope plate 7 is connected to the first connection slot 14 and the lower edge of the inner support slope plate 8 is connected to the second connection slot 15, the lower edge of the inner support slope plate 8 contacts the lower end of the seat platform 5. The inner support slope plate 8 and the outer support slope plate 7 are X-shaped, which serves to support the seat platform 5.

[0033] The power chassis 1 is equipped with a power battery 10. The upper end of the control stick 4 is provided with a throttle handle 41 for controlling the two drive wheels 2 respectively. The control stick 4 is provided with a retraction button 42 for controlling the electric hydraulic support rod 32 and an electric lock button 43 for controlling the electromagnetic lock 9.

[0034] Usage: When it is needed to be used as an electric wheelchair, rotate the outer support ramp 7 outward. The rotation of the outer support ramp 7, through the connection between the transmission gear 66 and the drive gear 71, causes the backrest 6 to also rotate away from the seat platform 5. Insert the lower edge of the outer support ramp 7 into the first connecting slot 14, and rotate the inner support ramp 8 out from the strip-shaped storage slot 72, so that the lower end of the inner support ramp 8 is inserted into the second connecting slot 15. At the same time, control the strip-shaped lock core 91 of the electromagnetic lock 9 to extend into the connecting socket 73, so that the seat is fully unfolded and connected to the power base, and can then be used as an electric wheelchair.

[0035] When used as a cargo platform or balance scooter, first retract the bar-shaped lock core 91 of the electromagnetic lock 9 from the connection socket 73 to remove the seat. Then rotate the inner support ramp 8 into the bar-shaped storage slot 72 of the outer support ramp 7. Rotate the outer support ramp 7 towards the seat platform 5. Through the connection between the transmission gear 66 and the drive gear 71, the backrest 6 also rotates towards the seat platform. Finally, fold the seat down to use it as a cargo platform or balance scooter.

[0036] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A portable and detachable intelligent electric wheelchair, comprising a power chassis (1), characterized in that: The power chassis (1) is equipped with drive wheels (2) on both sides. The power chassis (1) is equipped with a power battery (10). The front of the power chassis (1) is provided with an operating rudder (4). The upper end of the operating rudder (4) is provided with throttle handles (41) for controlling the two drive wheels (2) respectively. It also includes a seat platform (5), a backrest plate (6) is rotatably connected to the rear of the seat platform (5), a seat cushion (51) is provided at the upper end of the seat platform (5), a backrest (61) is provided at the front side of the backrest plate (6), an outer support inclined plate (7) that can rotate back and forth is rotatably connected to the lower end of the rear of the seat platform (5), a connecting shaft (65) that is rotatably connected to the rear of the seat platform (5) is provided at the lower side of the backrest plate (6), a transmission gear (66) is provided at both ends of the connecting shaft (65), the upper part of the outer support inclined plate (7) is close to the connecting shaft (65) at the connection point between the seat platform (5) and the upper part of the outer support inclined plate (7), and a drive gear (71) that meshes with the corresponding transmission gear (66) is provided at both ends of the upper part of the outer support inclined plate (7); A strip-shaped storage groove (72) is provided in the middle of the outer support inclined plate (7) along its length direction. An inner support inclined plate (8) that can rotate back and forth is rotatably connected in the strip-shaped storage groove (72). The upper end of the power chassis (1) is provided with a first connecting slot (14) that cooperates with the lower side of the outer support inclined plate (7) and a second connecting slot (15) that cooperates with the lower side of the inner support inclined plate (8). Both ends of the lower side of the outer support inclined plate (7) and both ends of the lower side of the inner support inclined plate (8) are provided with connecting holes (73) opening inward. Both sides of the first connecting slot (14) and the second connecting slot (15) are provided with through holes (16) that cooperate with the corresponding connecting holes (73). Electromagnetic locks (9) are installed in the power chassis (1) at the corresponding through holes (16). The lock cylinder of each electromagnetic lock (9) is a strip lock cylinder (91) that can pass through the corresponding through hole (16) and cooperate with the corresponding connection hole (73). The operating rudder (4) is provided with an electric lock button (43) for controlling the electromagnetic lock (9). After the lower edge of the outer support slope plate (7) is connected to the first connection slot (14) and the lower edge of the inner support slope plate (8) is connected to the second connection slot (15), the lower edge of the inner support slope plate (8) contacts the lower end of the seat platform (5), and the inner support slope plate (8) and the outer support slope plate (7) are X-shaped.

2. The lightweight, detachable intelligent electric wheelchair according to claim 1, characterized in that: The lower rear end of the power chassis (1) is provided with a retraction groove (12) that extends upwards. One end of the top of the retraction groove (12) is rotatably connected to a connecting rod (3) that can rotate back and forth. The free end of the connecting rod (3) is rotatably equipped with a support roller (31). The other end of the top of the retraction groove (12) is rotatably connected to the side wall of the connecting rod (3) with an electric hydraulic support rod (32). The operating rudder (4) is provided with a retraction button (42) for controlling the electric hydraulic support rod (32).

3. The lightweight, detachable intelligent electric wheelchair according to claim 1, characterized in that: The backrest (6) is provided with connecting plates (62) on both sides of the middle part. Each connecting plate (62) is rotatably connected to an armrest (63) that can rotate back and forth. Each connecting plate (62) has a horizontal support bar (64) on its lower side for supporting the lower side of the armrest (63). The horizontal support bar (64) is used to support the armrest (63) so that it can only rotate forward to the horizontal.

4. The lightweight, detachable intelligent electric wheelchair according to claim 1, characterized in that: Each drive wheel (2) has an integrated hub motor (21).

5. A lightweight, detachable intelligent electric wheelchair according to claim 1, characterized in that: The upper front end of the power chassis (1) is rotatably connected to the two sides of the operating rudder (4) by a support foot pedal (13) that can rotate back and forth.

6. A lightweight, detachable intelligent electric wheelchair according to claim 1, characterized in that: The power chassis (1) is provided with water-blocking wheel covers (11) on both sides of the upper end for covering the upper part of the corresponding drive wheel (2).

7. A lightweight, detachable intelligent electric wheelchair according to claim 1, characterized in that: The first connecting slot (14) allows the lower side of the outer support inclined plate (7) to slide back and forth, and the second connecting slot (15) allows the lower side of the inner support inclined plate (8) to slide back and forth. The through holes (16) of the first connecting slot (14) are located at both ends of its front side, and the through holes (16) of the second connecting slot (15) are located at both ends of its rear side.

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