Foldable two-wheel balance electric wheelchair with wheel-leg structure

Abstract

The utility model discloses a foldable two-wheel balance electric wheelchair with a wheel leg structure, which relates to the technical field of electric wheelchairs and comprises a wheelchair seat plate, connecting blocks are arranged on two sides of the front end of the wheelchair seat plate, threaded rods are arranged on the outer walls of the connecting blocks, large arms are arranged at outer side ends of the two groups of threaded rods, and the large arms are connected with the wheelchair seat plate. Small arms are arranged on the inner walls of the lower ends of the large arms, arc-shaped mounting plates are arranged between the side walls of the upper ends of the small arms and the large arms, first motor boxes are arranged in the arc-shaped mounting plates, and connecting ports are formed between the first motor boxes and the side walls of the large arms; the first motor box is detachably connected with the side wall of the large arm through an arranged connecting port, and an arc-shaped elastic plate is arranged on the outer wall of the arc-shaped mounting plate. According to the foldable two-wheel balance electric wheelchair of the wheel-leg structure, steering operation is more convenient, and the damping effect is better due to the suspension structure formed by combining the large arm and the small arm.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wheelchairs, in particular to a foldable two-wheeled balanced electric wheelchair with a wheel-leg structure. Background Art

[0002] The original intention of the design of electric wheelchairs on the market is to help people with limited mobility to carry out daily life and mobility more conveniently. Traditional manual wheelchairs require users to push them by hand, which may be very difficult and physically demanding for people with limited mobility or insufficient strength. Therefore, the original intention of the design of electric wheelchairs is to allow users to control the movement of the wheelchair more easily through the electric drive system, reduce the user's physical exertion, and improve the user's quality of life and independence.

[0003] However, there are still some shortcomings in the wheelchairs currently on the market. For example, there is still a lot of room for improvement in terms of comfort, passability, safety, portability, etc. In order to address the shortcomings of the existing technology, we propose a foldable two-wheeled balanced electric wheelchair with a wheel-leg structure. Utility Model Content

[0004] The main purpose of the utility model is to provide a foldable two-wheeled balanced electric wheelchair with a wheel-leg structure, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A foldable two-wheeled balanced electric wheelchair with a wheel-leg structure comprises a wheelchair seat, connecting blocks are arranged on both sides of the front end of the wheelchair seat, threaded rods are arranged on the outer walls of the connecting blocks, large arms are arranged on the outer ends of the two groups of threaded rods, small arms are arranged on the inner walls of the lower ends of the large arms, arc-shaped mounting plates are arranged between the upper side walls of the small arms and the large arms, a No. 1 motor box is arranged inside the arc-shaped mounting plate, a connecting port is arranged between the No. 1 motor box and the side wall of the large arm, the No. 1 motor box is detachably connected to the side wall of the large arm through the arranged connecting port, and the outer wall of the arc-shaped mounting plate is arranged between the No. 1 motor box and the side wall of the large arm The wall is provided with an arc-shaped elastic plate, a No. 1 connecting rod is provided at the upper end of the arc-shaped elastic plate, a connecting port is provided between the No. 1 connecting rod and the side wall of the upper arm, and the No. 1 connecting rod is detachably connected to the side wall of the upper arm through the provided connecting port, a No. 2 connecting rod is provided at the lower end of the arc-shaped elastic plate, a connecting port is provided between the No. 2 connecting rod and the side wall of the forearm, and the No. 2 connecting rod is detachably connected to the side wall of the forearm through the provided connecting port, and the lower ends of the two groups of forearms are provided with mounting ports, a No. 2 motor box is provided in the middle of the mounting port, and rollers are provided on the outer walls of the No. 2 motor box.

[0007] Preferably, a backrest is provided at the rear side of the wheelchair seat, handrails are provided on both side walls of the wheelchair seat, a connecting plate is provided at the lower end of the wheelchair seat, and a footrest is provided at the lower end of the connecting plate.

[0008] Preferably, a connecting port is provided between the connecting block and the wheelchair seat, and the connecting block is detachably connected to the wheelchair seat via the provided connecting port. Connecting ports are provided between the threaded rod and the connecting block and the upper arm, and the threaded rod is detachably connected to the connecting block and the upper arm respectively via the provided connecting ports.

[0009] Preferably, a rotating interface is provided between the upper arm and the arc-shaped mounting plate, and the upper arm is rotatably connected to the arc-shaped mounting plate through the rotating interface, a mounting interface is provided between the arc-shaped elastic plate and the arc-shaped mounting plate, and the arc-shaped elastic plate is detachably connected to the arc-shaped mounting plate through the mounting interface, and a fixing bolt is provided between the No. 1 motor box and the inner wall of the arc-shaped mounting plate, and the No. 1 motor box is detachably connected to the inner wall of the arc-shaped mounting plate through the fixing bolt.

[0010] Preferably, the No. 2 motor box is detachably connected to the forearm via a set mounting port, a connecting port is provided between the mounting port and the No. 2 motor box, the mounting port is detachably connected to the No. 2 motor box via the set connecting port, and motors are provided inside the No. 1 motor box and the No. 2 motor box.

[0011] Preferably, a connecting port is provided between the armrest rod and the wheelchair seat, and the armrest rod is detachably connected to the wheelchair seat via the provided connecting port; a connecting port is provided between the connecting plate and the bottom of the wheelchair seat, and the connecting plate is detachably connected to the bottom of the wheelchair seat via the provided connecting port.

[0012] Beneficial Effects

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, by setting two sets of upper arms, lower arms, arc-shaped mounting plates, No. 1 motor box, No. 2 motor box and rollers, the device can be moved more conveniently in complex terrain. Compared with the traditional four-wheeled wheelchair, the utility model has only two sets of rollers, which can more conveniently perform steering and U-turn operations in a narrow space, and the operation is more convenient. The two sets of upper arms and lower arms are equivalent to suspension structures, which can reduce the vibration of the wheelchair walking on uneven roads, making the wheelchair more comfortable to use. People sit on the upper end of the wheelchair seat, No. 1 motor box can adjust the angle between the upper arm and the lower arm, and the arc-shaped elastic plate can provide support to reduce the pressure of the motor inside the No. 1 motor box. The motor inside the No. 2 motor box drives the rollers to rotate in the same direction to drive the wheelchair forward or backward. The two sets of motors inside the No. 2 motor boxes drive the two sets of rollers to rotate in opposite directions, which can drive the wheelchair to turn or even turn around on the spot, and the operation is very convenient.

[0015] 2. In the utility model, through the provision of threaded rods, connecting blocks and arc-shaped mounting plates, the device can fold and store two sets of upper arms and lower arms, making the device more convenient to store and not occupying too much space. It is also more convenient to transport and transfer the device. The threaded rod is rotated between the connecting block and the upper arm to loosen the connection between the threaded rod, the connecting block and the upper arm, and the upper arm can be rotated on the side wall of the wheelchair seat. At the same time, the No. 1 motor box can allow the lower arm to rotate at the lower end of the upper arm. After the two sets of upper arms and lower arms are stored, the wheel leg structure can be folded, making the wheelchair more convenient to transport and transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the upper arm and the lower arm of the utility model;

[0018] Figure 3 It is a schematic diagram of the forearm connection structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the roller connection structure of the utility model.

[0020] In the figure: 1. wheelchair seat; 2. backrest; 3. handrail; 4. upper arm; 5. lower arm; 6. roller; 7. connecting plate; 8. footrest; 9. threaded rod; 10. connecting block; 11. arc-shaped mounting plate; 12. arc-shaped elastic plate; 13. connecting rod No. 1; 14. connecting rod No. 2; 15. motor box No. 1; 16. mounting port; 17. motor box No. 2. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-Figure 4 As shown, a foldable two-wheeled balanced electric wheelchair with a wheel-leg structure includes a wheelchair seat 1, connecting blocks 10 are arranged on both sides of the front end of the wheelchair seat 1, threaded rods 9 are arranged on the outer walls of the connecting blocks 10, and large arms 4 are arranged on the outer ends of the two groups of threaded rods 9. The threaded rods 9 connect the large arms 4 with the connecting blocks 10. The connecting blocks 10 are used to install the threaded rods 9 on the side walls of the wheelchair seat 1, and small arms 5 are arranged on the inner walls of the lower ends of the large arms 4. The large arms 4 and the small arms 5 constitute the main part of the suspension structure of the wheelchair, and arc-shaped mounting plates 11 are arranged between the upper side walls of the small arms 5 and the large arms 4. The large arms 4 and the arc-shaped mounting plates 11 are connected to the large arms 4. A rotating interface is provided between the upper arm 4t, and the upper arm 4t is rotatably connected with the arc-shaped mounting plate 11 through the provided rotating interface. A No. 1 motor box 15 is provided inside the arc-shaped mounting plate 11, and a connecting port is provided between the No. 1 motor box 15 and the side wall of the upper arm 4. The No. 1 motor box 15 is detachably connected with the side wall of the upper arm 4 through the provided connecting port. The No. 1 motor box 15 can drive the upper arm 4 to rotate on the side wall of the forearm 5. An arc-shaped elastic plate 12 is provided on the outer wall of the arc-shaped mounting plate 11. When the forearm 5 rotates on the side wall of the upper arm 4, the arc-shaped elastic plate 12 can be elastically deformed, and a No. 1 connecting rod 13 is provided on the upper end of the arc-shaped elastic plate 12. A connecting port is provided between the No. 1 connecting rod 13 and the side wall of the upper arm 4, and the No. 1 connecting rod 13 is detachably connected to the side wall of the upper arm 4 through the provided connecting port. A No. 2 connecting rod 14 is provided at the lower end of the arc-shaped elastic plate 12, and a connecting port is provided between the No. 2 connecting rod 14 and the side wall of the small arm 5, and the No. 2 connecting rod 14 is detachably connected to the side wall of the small arm 5 through the provided connecting port. The arc-shaped elastic plate 12 is connected to the upper arm 4 and the small arm 5 respectively through the provided No. 1 connecting rod 13 and the No. 2 connecting rod 14, and the lower ends of the two groups of small arms 5 are provided with mounting ports 16, and the middle of the mounting ports 16 is provided with No. 2 motor boxes 17. 16 is used to install the No. 2 motor box 17. The outer wall of the No. 2 motor box 17 is provided with rollers 6. The No. 2 motor box 17 is provided with a motor inside to drive the rollers 6 to rotate. People sit on the upper end of the wheelchair seat 1. The No. 1 motor box 15 can adjust the angle between the upper arm 4 and the lower arm 5. The arc elastic plate 12 can provide support to relieve the pressure of the motor inside the No. 1 motor box 15. The motor inside the No. 2 motor box 17 drives the rollers 6 to rotate in the same direction to drive the wheelchair forward or backward. The two groups of motors inside the No. 2 motor boxes 17 drive the two groups of rollers 6 to rotate in opposite directions, which can drive the wheelchair to turn, or even turn around on the spot.

[0023] like Figure 1-Figure 4As shown, a backrest 2 is arranged on the rear side of the wheelchair seat 1, and the backrest 2 is used to provide back support. Armrests 3 are arranged on both side walls of the wheelchair seat 1, and the armrests 3 are used to provide arm support. A connecting plate 7 is arranged at the lower end of the wheelchair seat 1, and a footrest 8 is arranged at the lower end of the connecting plate 7. The connecting plate 7 is used to install the footrest 8, and the footrest 8 is used to hold people's feet.

[0024] It should be noted that the utility model is a foldable two-wheeled balanced electric wheelchair with a wheel-leg structure. When in use, people sit on the upper end of the wheelchair seat 1. The No. 1 motor box 15 can adjust the angle between the upper arm 4 and the lower arm 5. The arc-shaped elastic plate 12 can provide support to reduce the pressure of the motor inside the No. 1 motor box 15. The motor inside the No. 2 motor box 17 drives the rollers 6 to rotate in the same direction, which can drive the wheelchair forward or backward. The motors inside the two groups of No. 2 motor boxes 17 drive the two groups of rollers 6 to rotate in opposite directions, which can drive the wheelchair to turn, or even turn around on the spot. The threaded rod 9 is rotated between the connecting block 10 and the upper arm 4, and the threaded rod 9 is loosened from the connecting block 10 and the upper arm 4, so that the upper arm 4 can rotate on the side wall of the wheelchair seat 1. At the same time, the No. 1 motor box 15 can allow the lower arm 5 to rotate at the lower end of the upper arm 4. The two groups of upper arms 4 and the lower arm 5 are stored, so that the wheel-leg structure can be folded.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A foldable two-wheeled balanced electric wheelchair with a wheel-leg structure, comprising a wheelchair seat (1), characterized in that: Both sides of the front end of the wheelchair seat (1) are provided with connecting blocks (10), the outer walls of the connecting blocks (10) are provided with threaded rods (9), the outer ends of the two groups of threaded rods (9) are provided with upper arms (4), the lower inner walls of the upper arms (4) are provided with small arms (5), an arc-shaped mounting plate (11) is provided between the upper side walls of the small arms (5) and the upper arms (4), a No. 1 motor box (15) is provided inside the arc-shaped mounting plate (11), a connecting port is provided between the No. 1 motor box (15) and the side wall of the upper arm (4), the No. 1 motor box (15) is detachably connected to the side wall of the upper arm (4) through the provided connecting port, an arc-shaped elastic plate (12) is provided on the outer wall of the arc-shaped mounting plate (11), the arc A No. 1 connecting rod (13) is provided at the upper end of the arc-shaped elastic plate (12), a connecting port is provided between the No. 1 connecting rod (13) and the side wall of the upper arm (4), and the No. 1 connecting rod (13) is detachably connected to the side wall of the upper arm (4) through the provided connecting port; a No. 2 connecting rod (14) is provided at the lower end of the arc-shaped elastic plate (12), a connecting port is provided between the No. 2 connecting rod (14) and the side wall of the lower arm (5), and the No. 2 connecting rod (14) is detachably connected to the side wall of the lower arm (5) through the provided connecting port; the lower ends of the two groups of lower arms (5) are both provided with mounting ports (16), the middle of the mounting ports (16) is both provided with No. 2 motor boxes (17), and the outer walls of the No. 2 motor boxes (17) are both provided with rollers (6).

2. A foldable two-wheeled balanced electric wheelchair with a wheel-leg structure according to claim 1, characterized in that: A backrest (2) is arranged at the rear side of the wheelchair seat (1), handrails (3) are arranged on both side walls of the wheelchair seat (1), a connecting plate (7) is arranged at the lower end of the wheelchair seat (1), and a footrest (8) is arranged at the lower end of the connecting plate (7).

3. The foldable two-wheeled balanced electric wheelchair with a wheel-leg structure according to claim 1, characterized in that: A connection port is provided between the connection block (10) and the wheelchair seat (1), and the connection block (10) is detachably connected to the wheelchair seat (1) via the provided connection port. Connection ports are provided between the threaded rod (9) and the connection block (10) and the upper arm (4), and the threaded rod (9) is detachably connected to the connection block (10) and the upper arm (4) via the provided connection ports.

4. The foldable two-wheeled balanced electric wheelchair with a wheel-leg structure according to claim 1, characterized in that: A rotation interface is provided between the upper arm (4) and the arc-shaped mounting plate (11), and the upper arm (4) is rotationally connected to the arc-shaped mounting plate (11) via the rotation interface. A mounting interface is provided between the arc-shaped elastic plate (12) and the arc-shaped mounting plate (11), and the arc-shaped elastic plate (12) is detachably connected to the arc-shaped mounting plate (11) via the mounting interface. A fixing bolt is provided between the No. 1 motor box (15) and the inner wall of the arc-shaped mounting plate (11), and the No. 1 motor box (15) is detachably connected to the inner wall of the arc-shaped mounting plate (11) via the fixing bolt.

5. The foldable two-wheeled balanced electric wheelchair with a wheel-leg structure according to claim 1, characterized in that: The second motor box (17) is detachably connected to the forearm (5) via a provided mounting opening (16); a connection opening is provided between the mounting opening (16) and the second motor box (17); the mounting opening (16) is detachably connected to the second motor box (17) via the provided connection opening; and motors are provided inside the first motor box (15) and the second motor box (17).

6. A foldable two-wheeled balanced electric wheelchair with a wheel-leg structure according to claim 2, characterized in that: A connection port is provided between the handrail (3) and the wheelchair seat (1), and the handrail (3) is detachably connected to the wheelchair seat (1) via the provided connection port; a connection port is provided between the connecting plate (7) and the bottom of the wheelchair seat (1), and the connecting plate (7) is detachably connected to the bottom of the wheelchair seat (1) via the provided connection port.

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