WO-2026090919-A1 - WHEELCHAIR

Abstract

A wheelchair, comprising a seat (10), a chassis (30) and a support arm (20). The seat (10) is connected to the chassis (30) by means of the support arm (20), and at least one of the seat (10) and the chassis (30) is mechanically and electrically connected to the support arm (20) in a detachable manner. The electrical connection between the seat (10) and the support arm (20) is a wired or wireless electrical connection, and the electrical connection between the chassis (30) and the support arm (20) is a wired or wireless electrical connection. Thus, the wheelchair can be structurally divided into at least two parts, and during the mechanical disassembly and assembly of the wheelchair, the electrical disassembly and assembly of the wheelchair can be simultaneously completed. Therefore, the space required for storing the wheelchair can be reduced, facilitating placement of the wheelchair into limited spaces such as a vehicle trunk and improving storage convenience, and complex wiring requirements of the multifunctional wheelchair can be met, avoiding line damage or entanglement during disassembly and assembly of the wheelchair, thereby ensuring the stability and safety of wheelchair functions.

Inventors

• ZHANG, SONG
• YE, JIANHUI
• WANG, Jinxing

Assignees

• 深圳市若创科技有限公司

Dates

Publication Date

20260507

Application Date

20241030

Claims (20)

1. A wheelchair, characterized in that it comprises: a seat, a chassis, and a support arm, wherein the seat and the chassis are connected via the support arm, and at least one of the seat and the chassis is mechanically and electrically connected to the support arm in a detachable manner; and the electrical connection between the seat and the support arm is a wired electrical connection or a radio connection, and the electrical connection between the chassis and the support arm is a wired electrical connection or a radio connection.
2. According to claim 1, the wheelchair is characterized in that the seat is provided with a seat connecting seat, the seat connecting seat including a first connector electrically connected to the connecting circuit board of the seat; the support arm is provided with a first support arm connecting seat, the first support arm connecting seat including a second connector electrically connected to the connecting circuit board of the support arm, and the seat and the support arm are wired electrically connected through the seat connecting seat and the first support arm connecting seat, and when the seat and the support arm are in a connected state, the first connector and the second connector are connected to realize the wired electrical connection between the seat and the support arm.
3. According to claim 1, the wheelchair is characterized in that the chassis is provided with a chassis connecting seat, the chassis connecting seat including a third connector electrically connected to the connecting circuit board of the chassis; the support arm is provided with a second support arm connecting seat, the second support arm connecting seat including a fourth connector electrically connected to the connecting circuit board of the support arm, and the chassis and the support arm are wired electrically connected through the chassis connecting seat and the second support arm connecting seat; and when the chassis and the support arm are in a connected state, the third connector and the fourth connector are connected to realize the wired electrical connection between the chassis and the support arm.
4. According to claim 1, the wheelchair is characterized in that the support arm includes a groove; the seat includes a push rod, the push rod is adapted to the groove, and the seat and the support arm are detachably connected through the groove and the push rod.
5. According to claim 4, the wheelchair is characterized in that the seat further includes a seat-side removal handle and a seat-side handle pivot, the seat-side removal handle being rotatably connected to the seat-side handle pivot, and the seat-side removal handle being configured to drive the push rod to move when rotating around the seat-side handle pivot.
6. According to claim 5, the wheelchair is characterized in that the seat further includes a fixed shaft and a swing arm, the fixed shaft fixingly connecting the seat side detachable handle to the swing arm, and the seat side detachable handle is specifically configured such that when rotating around the pivot of the seat side handle, it drives the push rod to move through the swing arm.
7. According to claim 1, the wheelchair is characterized in that the seat includes a seat control board, and the seat control board is electrically connected to the connection circuit board of the seat.
8. According to claim 1, the wheelchair is characterized in that the support arm includes a docking limiting part; the chassis includes a locking tongue, the locking tongue is adapted to the docking limiting part, and the chassis and the support arm are detachably connected through the locking tongue and the docking limiting part, the locking tongue having a locked state and an unlocked state; Furthermore, when the support arm and the chassis are connected, the docking limiting part is engaged in the locking tongue, and the locking tongue is in a locked state; when the support arm and the chassis are disassembled, the docking limiting part is disengaged from the locking tongue.
9. The wheelchair according to claim 8 is characterized in that the chassis further includes a chassis-side detachment handle, the chassis-side detachment handle and the locking tongue are respectively disposed on opposite sides of the mounting position of the support arm, and the chassis-side detachment handle is configured to: unlock the locking tongue when subjected to a force in a specified direction.
10. According to claim 9, the wheelchair is characterized in that the chassis further includes a transmission rod, a chassis side handle pivot, and a transmission component, wherein the chassis side detachable handle is fixedly connected to the transmission rod, the transmission rod is rotatably connected to the chassis side handle pivot, the transmission rod is connected to the locking tongue through the transmission component, and the chassis side detachable handle is specifically configured to: when subjected to a force in a specified direction, drive the transmission rod to rotate around the chassis side handle pivot, and during the rotation of the transmission rod around the chassis side handle pivot, drive the locking tongue to unlock through the transmission component.
11. According to claim 8, the wheelchair is characterized in that the support arm further includes a docking pivot; the chassis further includes a positioning part, the positioning part being adapted to the docking pivot, and the positioning part and the locking tongue being respectively disposed on opposite sides of the mounting position of the support arm; Furthermore, when the support arm is connected to the chassis, the docking pivot is positioned at the positioning part, and when the latch changes from the locked state to the unlocked state, the support arm will rotate around the docking pivot under the force in a specified direction, and the docking limiting part will disengage from the latch, so that the support arm and the chassis change from the connected state to the disassembled state.
12. The wheelchair according to claim 1, characterized in that the support arm includes a support arm electronic control board, and the support arm electronic control board... The board is electrically connected to the connecting circuit board of the support arm.
13. According to claim 1, the wheelchair is characterized in that the seat includes a seat body and a backrest, and the backrest is detachably connected to the seat body.
14. According to claim 13, the wheelchair is characterized in that the seat body includes a connecting frame and a limiting rod, the limiting rod being connected to the connecting frame; the backrest includes a first limiting part, the first limiting part being adapted to the limiting rod; Furthermore, when the backrest and the seat body are in a connected state, the limiting rod is engaged in the first limiting part, and when the backrest is subjected to a force in a direction away from the seat body, the limiting rod will disengage from the first limiting part, so that the backrest and the seat body change from a connected state to a disassembled state.
15. The wheelchair according to claim 14, wherein the seat body further includes a pivot shaft connected to the connecting frame; and the backrest further includes a second limiting portion adapted to the pivot shaft. Furthermore, when the backrest and the seat body are connected, the pivot is engaged in the second limiting part, and when the backrest is subjected to a force in a direction away from the seat body, the backrest will rotate around the pivot, and the limiting rod will disengage from the first limiting part, so that the backrest and the seat body change from a connected state to a disassembled state.
16. The wheelchair according to claim 15 is characterized in that the first limiting part is provided with a slot and has a first inclined surface and a second inclined surface, wherein the first inclined surface is configured to guide the limiting rod to be engaged in the slot, and the second inclined surface is configured to guide the limiting rod to disengage from the slot.
17. According to claim 15, the wheelchair is characterized in that the connecting frame is provided with a first mounting hole and a second mounting hole, the opposite ends of the limiting rod are respectively installed in the first mounting hole and the second mounting hole, and the positions of the opposite ends of the limiting rod in the first mounting hole and the second mounting hole are adjustable, so as to realize that the limiting rod is locked in the first limiting part, or to realize that the limiting rod is disengaged from the first limiting part; The seat body also includes a spring, one end of which is fixed to the connecting frame, and the other end of which is connected to the limiting rod. The spring is configured to apply a force to the limiting rod to prevent the limiting rod from disengaging from the first limiting part.
18. The wheelchair according to claim 1 is characterized in that the chassis includes a front wheel module and a rear wheel module, wherein the front wheel module and the rear wheel module are detachably connected.
19. The wheelchair according to claim 18 is characterized in that the front wheel module and the rear wheel module are electrically connected in a detachable manner, and the electrical connection between the front wheel module and the rear wheel module is a wired electrical connection or a wireless connection.
20. According to claim 19, the wheelchair is characterized in that the front wheel module includes a front wheel connector, the front wheel connector including a fifth connector electrically connected to the connection circuit board of the front wheel module; the rear wheel module includes a rear wheel connector, the rear wheel connector including a sixth connector electrically connected to the connection circuit board of the rear wheel module, and the front wheel module and the rear wheel module are wired electrically connected through the front wheel connector and the rear wheel connector; and when the front wheel module and the rear wheel module are in a connected state, the fifth connector and the sixth connector are connected to realize the wired electrical connection between the front wheel module and the rear wheel module.

Description

wheelchair Technical Field This application relates to the field of mobility technology, and more particularly to a wheelchair. Background Technology In existing wheelchair designs, foldable structures are commonly used to address the inconvenience of transporting wheelchairs and their large space-consuming nature when not in use. However, as wheelchairs incorporate more functions, such as intelligent driving features, the wiring becomes increasingly complex, making it difficult to store them using traditional folding methods. Furthermore, in overseas family settings, there are frequent travel needs, requiring solutions for wheelchair storage during outings, such as storing the wheelchair in a car (e.g., in the trunk). Summary of the Invention This application provides a wheelchair that reduces the space required for storage, making it easier to place in limited spaces such as vehicle trunks, thus improving storage convenience. It can also adapt to the complex wiring requirements of multifunctional wheelchairs, avoiding wire damage or tangling during wheelchair assembly and disassembly, ensuring the stability and safety of wheelchair functions, and enhancing the user's operating experience. This application provides a wheelchair, which includes a seat, a chassis, and a support arm. The seat and the chassis are connected by the support arm, and at least one of the seat and the chassis is mechanically and electrically connected to the support arm in a detachable manner. Furthermore, the electrical connection between the seat and the support arm is a wired electrical connection or a radio connection, and the electrical connection between the chassis and the support arm is a wired electrical connection or a radio connection. In some embodiments, the seat is provided with a seat connector, the seat connector including a first connector electrically connected to a connection circuit board of the seat; the support arm is provided with a first support arm connector, the first support arm connector including a second connector electrically connected to a connection circuit board of the support arm, and the seat and the support arm are wired electrically connected through the seat connector and the first support arm connector, and when the seat and the support arm are in a connected state, the first connector and the second connector are connected to realize the wired electrical connection between the seat and the support arm. In some embodiments, the chassis is provided with a chassis connecting seat, the chassis connecting seat including a third connector electrically connected to the connecting circuit board of the chassis; the support arm is provided with a second support arm connecting seat, the second support arm connecting seat including a fourth connector electrically connected to the connecting circuit board of the support arm, and the chassis and the support arm are wired electrically connected through the chassis connecting seat and the second support arm connecting seat; and when the chassis and the support arm are in a connected state, the third connector and the fourth connector are connected to realize the wired electrical connection between the chassis and the support arm. In some embodiments, the support arm includes a groove; the seat includes a push rod adapted to the groove, and the seat and the support arm are detachably connected via the groove and the push rod. In some embodiments, the seat further includes a seat-side removal handle and a seat-side handle pivot, the seat-side removal handle being rotatably connected to the seat-side handle pivot, and the seat-side removal handle being configured to move the push rod when rotating about the seat-side handle pivot. In some embodiments, the seat further includes a fixed shaft and a swing arm, the fixed shaft fixingly connecting the seat side removal handle to the swing arm, and the seat side removal handle is specifically configured such that when rotating about the pivot of the seat side handle, the swing arm drives the push rod to move. In some embodiments, the seat includes a seat control board, and the seat control board is electrically connected to the seat's connection circuit board. In some embodiments, the support arm includes a docking limiting portion; the chassis includes a locking tongue, the locking tongue being adapted to the docking limiting portion, and the chassis and the support arm are detachably connected via the locking tongue and the docking limiting portion, the locking tongue having a locked state and an unlocked state; and, when the support arm and the chassis are connected, the docking limiting portion is engaged in the locking tongue, and the locking tongue is in a locked state; when the support arm and the chassis are disassembled, the docking limiting portion is disengaged from the locking tongue. In some embodiments, the chassis further includes a chassis-side mounting handle, the chassis-side mounting handle and the