TWI720631B - An electric wheelchair - Google Patents

Abstract

The present invention provides an electric wheelchair which includes a seat assembly and a wheel assembly. The wheel assembly is used for carrying the seat assembly and driving the electric wheelchair to move. The seat assembly includes an armrest module connected to a steering control assembly. The steering control assembly is connected to the armrest module and the wheel assembly. When an external force is applied to the armrest, the steering control assembly is driven to conduct an adaptive traction operation, and a respective steering force is also applied to the wheel assembly, so as to perform the steering operation of the wheel assembly.

Description

An electric wheelchair

The invention relates to the technical field of scooter, in particular to an electric wheelchair.

Electric wheelchairs are mainly used as scooters for people with reduced mobility. Current electric wheelchairs use a joystick controller to control the steering and speed of the electric wheelchair. Although the joystick controller can improve the user's ability to adjust the movement state of the electric wheelchair Convenience, but the rocker controller is installed on the electric wheelchair as an independent control component, which not only takes up the space of the electric wheelchair, and the cost of the rocker controller is expensive, which correspondingly leads to the production cost of the electric wheelchair. Becomes high. In addition, the existing rocker controllers of electric wheelchairs all adopt a T-shaped control lever structure, and the T-shaped control lever structure itself is large in size and cannot be folded, which increases the volume of the electric wheelchair to a certain extent, and at the same time Because it does not have the characteristics of foldable storage, this seriously affects the applicability of the electric wheelchair to different occasions. It can be seen that electric wheelchairs in the prior art generally have defects such as high production cost, large size, inability to be folded and stored, and complicated steering control.

In view of the above-mentioned defects in the prior art, the present invention provides an electric wheelchair. The electric wheelchair includes a seat assembly and a wheel assembly. The wheel assembly is used to carry and drive the seat assembly to perform. Mobile, wherein the seat assembly includes an armrest module, the armrest module is connected to a steering control assembly, and the steering control assembly connects the armrest module and the wheel assembly; when the armrest module is under external force Under the action, the steering control assembly can be triggered to perform an adaptive traction action, and corresponding steering force is applied to the wheel assembly to drive the wheel assembly to perform a steering action. It can be seen that the electric wheelchair is different from the prior art that uses a rocker controller such as a T-shaped joystick to control the motion state of the electric wheelchair. The electric wheelchair combines the armrest module on the seat assembly with the steering control assembly. In this way, the user can drive the electric wheelchair to perform an adaptive steering action through the steering control assembly through the corresponding operation of the armrest module. The electric wheelchair uses the armrest module instead of the rocker controller as the steering controller, which not only can It saves the trouble of setting up a rocker controller with a special reserved space, and can quickly and conveniently control the steering of the electric wheelchair without using the expensive rocker controller, thereby greatly reducing the electric power The production cost of the wheelchair and the reduction of the overall volume of the electric wheelchair; in addition, the electric wheelchair is also provided with a folding structure that allows the electric wheelchair to be stored and folded, thereby facilitating and effectively reducing the storage space of the electric wheelchair and Improve the practical applicability of the electric wheelchair to different occasions.

The present invention provides an electric wheelchair. The electric wheelchair includes a seat assembly and a wheel assembly, wherein the wheel assembly is used to carry and drive the seat assembly to move, wherein the seat assembly Including an armrest module; a steering control assembly is connected to the armrest module; the steering control assembly connects the armrest module and the wheel assembly; when the armrest module is under the action of an external force, it can The steering control assembly is triggered to perform an adaptive traction action, and a corresponding steering force is applied to the wheel assembly to drive the wheel assembly to perform a steering action.

In one embodiment, the steering control assembly includes a first steering control module and a second steering control module; wherein, the first steering control module and the second steering control module are symmetrically distributed in The left and right sides of the electric wheelchair; the first steering control module is connected to the left armrest module of the seat assembly, and the second steering control module is connected to the right armrest module of the seat assembly Group connection; the first steering control module and the second steering control module are respectively connected with the left front wheel and the right front wheel of the wheel assembly to drive the left front wheel and the right front wheel to rotate.

In one embodiment, the first steering control module and the second steering control module each include a steering link lift rod, a steering link lift main rod, a steering main rod, a steering connection part, and a steering link. Control line, steering plate and steering link; wherein one end of the steering link lift rod is connected to the armrest module, and the other end of the steering link lift rod is sleeved on the steering link lift main In the rod; the steering link lifting main rod is sleeved in the steering main rod; the steering main rod is pivotally connected to the steering connecting portion; one end of the steering control line is connected to the steering connecting portion The other end of the steering control wire is hingedly connected to the steering plate; one end of the steering link is pivotally connected to the steering plate, and the other end of the steering link is connected to the corresponding The left front wheel or the right front wheel is hingedly connected.

In an embodiment, the steering plate includes two steering control line hinge points symmetrically distributed, and the respective steering control lines of the first steering control module and the second steering control module pass through corresponding steering control lines. The hinge point of the control wire is hingedly connected with the steering plate; the front end of the steering plate is provided with a first rotating shaft, and the steering link of the first steering control module is connected to the steering plate The lower surface is connected with the first rotating shaft, and the steering link of the second steering control module is connected with the first rotating shaft on the upper surface of the steering plate.

In an embodiment, the wheel assembly further includes a front wheel cross member, a main frame, a left rear wheel and a right rear wheel; the front wheel cross member is connected to the left front wheel and the right front wheel, respectively; the first steering wheel The steering link of the control module is simultaneously rotatably connected to the left front wheel shaft and the front wheel beam shaft through the left front wheel shaft; the steering link of the second steering control module is simultaneously connected to the right front wheel and the right front wheel through the right front wheel shaft. The front wheel beam shaft is rotatably connected; the rear end of the steering plate is provided with a second rotation shaft that is rotatably connected to the main frame, and the rear side of the main frame is connected to the The left rear wheel is connected to the right rear wheel.

In one embodiment, the steering control line has a flattened structure that can be bent and deformed; when the armrest module is subjected to the external force, the armrest module will drive the connecting steering link lift rod, The steering link lifting main rod, the steering main rod, and the steering connecting portion perform translational movement, so that the steering control wire portion is deformed. At this time, the steering control wire portion will cause the steering due to the deformation. The plate applies a steering force, so that the steering plate drives the left front wheel and the right front wheel to perform a steering action under the action of the steering force.

In one embodiment, the armrest module includes a handle, the handle is connected to a speed controller; the wheel assembly is provided with a drive control assembly, the drive control assembly is used to drive the The left and right rear wheels of the wheel assembly run; the drive control assembly includes a motor, a gearbox and an electromagnetic brake; the speed controller is connected to the drive control assembly for adjusting the The driving speed of the drive control assembly to the left rear wheel and the right rear wheel.

In an embodiment, the seat assembly includes a seat portion, a seat connecting plate, and a seat height adjusting portion; wherein the seat portion includes a seat back and a seat cushion, and the seat connecting plate Is arranged on the bottom surface of the seat cushion to elastically connect the seat part and the seat height adjustment part; the seat height adjustment part includes a front support rod, a bottom support rod and an adjustment knob, the front support The rod is movably sleeved on the bottom support rod, and the adjustment knob is used to adjust and lock the front support rod and the bottom support rod to adjust the front support rod on the bottom support rod. The sleeve length; the front support rod is connected to the seat connecting plate, and the bottom support rod is connected to the frame of the wheel assembly.

In one embodiment, the wheel assembly includes a frame, a front left wheel, a front right wheel, a rear left wheel, a rear right wheel, and an anti-rolling wheel; wherein, the front left wheel, the front right wheel, and the rear left wheel The rear right wheel and the rear right wheel are respectively arranged at four corners of the frame; the anti-rolling wheel is connected to the frame through an anti-rolling wheel bracket, and is arranged behind the rear left wheel and the rear right wheel.

In an embodiment, the steering control assembly and the wheel assembly are further connected by a rear support rod; the rear support rod is respectively foldably connected with the steering control assembly and the wheel assembly to achieve The electric wheelchair is integrally folded for storage; or, the frame of the wheel assembly is also provided with a portable frame.

Compared with the prior art, the electric wheelchair of the present invention includes a seat assembly and a wheel assembly. The wheel assembly is used to carry and drive the seat assembly to move, wherein the seat assembly includes an armrest module, the armrest module is connected to a steering control assembly, and the steering control assembly is connected to the armrest module And the wheel assembly; when the armrest module is under the action of external force, it can trigger the steering control assembly to perform an adaptive traction action, and apply the corresponding steering force to the wheel assembly to drive the wheel assembly Into the steering action. It can be seen that the electric wheelchair is different from the prior art that uses a rocker controller such as a T-shaped joystick to control the motion state of the electric wheelchair. The electric wheelchair combines the armrest module on the seat assembly with the steering control assembly. In this way, the user can drive the electric wheelchair to perform an adaptive steering action through the steering control assembly through the corresponding operation of the armrest module. The electric wheelchair uses the armrest module instead of the rocker controller as the steering controller, which not only can It saves the trouble of setting up a rocker controller with a special reserved space, and can quickly and conveniently control the steering of the electric wheelchair without using the expensive rocker controller, thereby greatly reducing the electric power The production cost of the wheelchair and the reduction of the overall volume of the electric wheelchair; in addition, the electric wheelchair is also provided with a folding structure that allows the electric wheelchair to be stored and folded, thereby facilitating and effectively reducing the storage space of the electric wheelchair and Improve the practical applicability of the electric wheelchair to different occasions.

1‧‧‧Grip

2‧‧‧Speed Controller

3‧‧‧Grip extension

4‧‧‧Armrest seat

5‧‧‧Steering link lift main rod

6‧‧‧Steering connection

7‧‧‧Seat connecting plate

8‧‧‧Steering control line

9‧‧‧Adjusting Knob

10‧‧‧Frame

11‧‧‧Front wheel

12‧‧‧Anti-dumping wheel

13‧‧‧Steering plate

14‧‧‧Steering Link 14

15‧‧‧Front loser

16‧‧‧Transmission

17‧‧‧Motor

18‧‧‧Electromagnetic brake

19‧‧‧Support rod folding connection part

20‧‧‧Anti-roll wheel bracket

21‧‧‧Steering control line hinge point

22‧‧‧Rear support rod

23‧‧‧Front support rod

24‧‧‧Portable rack

25‧‧‧Steering Link Lifting Rod

26‧‧‧Seat back

27‧‧‧Seat cushion

28‧‧‧Front Axle

29‧‧‧Rear wheel

30‧‧‧Steering main rod

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the embodiments or technical descriptions. Obviously, the drawings in the following description are merely present For some of the applied embodiments, those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic side view of the structure of an electric wheelchair provided by the present invention.

Fig. 2 is a schematic diagram of a front view structure of an electric wheelchair provided by the present invention.

Fig. 3 is a schematic top view of the structure of an electric wheelchair provided by the present invention.

4 is a schematic side view of the structure of an electric wheelchair according to another embodiment of the present invention.

Fig. 5 is a reference perspective view of an electric wheelchair without a seat during the first turning of an embodiment of the present invention.

Fig. 6 is a reference perspective view of an electric wheelchair without a seat in a second turning state according to an embodiment of the present invention.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Refer to FIGS. 1-3, which are respectively a schematic diagram of a side view, a schematic view of a front view and a schematic view of a top view of an electric wheelchair provided by the present invention. The electric wheelchair includes a seat assembly and a wheel assembly, wherein the wheel assembly is used to carry and drive the seat assembly to move. In one embodiment, the seat assembly includes an armrest module. The armrest module includes an armrest seat 4, the armrest seat 4 is connected with a steering control assembly, and the steering control assembly connects the armrest seat 4 and the wheel assembly. Therefore, under the action of external force, the armrest seat 4 can trigger the steering control assembly to perform an adaptive traction action, and apply a corresponding steering force to the wheel assembly to drive the wheel assembly to perform a steering action. The steering control assembly acts as a transmission connection intermediary between the armrest base 4 of the seat assembly and the wheel assembly, so that when the user grasps and acts on the armrest base 4 by hand, the steering control assembly can provide the user with The manual action is converted into a traction deflection effect and is directly transmitted to the wheel assembly. After the wheel assembly receives the traction deflection effect of the steering control assembly, it will drive the front wheel 11 to steer, thereby realizing the electric wheelchair. The overall movement of the steering adjustment.

In actual production, since the electric wheelchair has a symmetrical structure, in order to facilitate the user to adjust the steering of the electric wheelchair with the left and/or right hand, the steering control assembly may include a first steering control module located on the left side of the electric wheelchair. Group and a second steering control module located on the right side of the electric wheelchair, wherein the first steering control module and the second steering control module are symmetrically distributed on the left and right sides of the electric wheelchair, and the first steering control module Connected to the left armrest module of the seat assembly, the second steering control module is connected to the right armrest module of the seat assembly; the first steering control module and the second steering control module are respectively connected to The left front wheel and the right front wheel of the wheel assembly are connected to drive the left front wheel and the right front wheel to rotate. This can prevent the user from controlling the electric wheelchair for steering adjustment with only one hand, thereby greatly improving The applicability of the electric wheelchair to users of different habitual hand skills and the accuracy and stability of the steering adjustment of the electric wheelchair by the user are improved.

Continuing to refer to Figures 1-3, the first steering control module and the second steering control module of the electric wheelchair may have the same mechanical connection structure, wherein the first steering control module and the second steering control module The control modules each include a steering link lift rod 25, a steering link lift main rod 5, a steering main rod 30, a steering connection part 6, a steering control line part 8, a steering plate 13, and a steering link 14 connected in sequence. One end of the steering link lift rod 25 is connected to the armrest base 4, the other end of the steering link lift rod 25 is sleeved in the steering link lift main rod 5; the steering link lift main rod 5 is sleeved in The steering main rod 30; the steering main rod 30 is pivotally connected to the steering connection portion 6; one end of the steering control wire portion 8 is pivotally connected to the steering connection portion 6, and the other end of the steering control wire portion 8 and The steering plate 13 is hinged connection; one end of the steering link 14 is pivotally connected to the steering plate 13, and the other end of the steering link 14 is hingedly connected to the corresponding left front wheel or the right front wheel.

Referring to FIGS. 2-3, the steering plate 13 may preferably include two steering control line hinge points 21 symmetrically distributed, and the respective steering control line portions 8 of the first steering control module and the second steering control module pass through corresponding The hinge point 21 of the steering control line is hingedly connected to the steering plate 13, which can ensure that the steering plate 13 always maintains a left-right balance rotation movement during the rotation process and the left-right rotation movement of the steering plate 13 is in a stable range of motion, thereby Avoid the situation that the rotating plate deviates significantly from the original rotating direction; the front end of the steering plate 13 may preferably be provided with a first rotating shaft, and the steering link 14 of the first steering control module is located under the steering plate 13 The surface is connected to the first rotating shaft, the steering link 14 of the second steering control module is connected to the first rotating shaft on the upper surface of the steering plate 13, and the steering link 14 of the first steering control module is connected to the first rotating shaft. The steering links 14 of the second steering control module are respectively on the lower surface and the upper surface of the steering plate 13 to ensure that the steering plate 13 always receives the balanced steering force from the two steering links 14, thereby improving The steering of the steering plate 13 is controllable.

Referring to Figures 1-3, the wheel assembly preferably further includes a front wheel cross member 15, a main frame, a left rear wheel and a right rear wheel; the front wheel cross member 15 is respectively connected to the left front wheel and the right front wheel; the first steering control module The steering link 14 of the group is simultaneously connected to the left front wheel axle 28 and the front wheel beam shaft through the left front wheel axle piece 28; the steering link 14 of the second steering control module is simultaneously connected to the right front wheel and the right front wheel via the right front wheel axle piece 28. The front wheel beam shaft is rotatably connected; the rear end of the steering plate 13 is provided with a second rotation shaft which is rotatably connected with the main frame, and the rear side of the main frame is connected to the left rear wheel and the right Rear wheel connection, the main frame as the basic frame of the wheel assembly, it is not only used to connect the left rear wheel and the right rear wheel, but also through the front wheel beam 15 to achieve the left rear wheel and the right rear wheel Synchronized action, thereby improving the driving stability of the wheel assembly.

1, the steering control wire portion 8 has a flattened structure that can be bent and deformed; when the armrest seat 4 is subjected to the external force, the armrest seat 4 will drive the connecting steering link 14 lifting rod and the steering link up and down The main rod 5, the steering main rod 30, and the steering connecting portion 6 perform a translational movement, so that the steering control wire portion 8 is deformed. At this time, the steering control wire portion 8 will apply a steering force to the steering plate 13 due to the deformation. , So that the steering plate 13 drives the left front wheel and the right front wheel to perform a steering action under the action of the steering force. Because the steering control wire portion 8 has elastic recovery bending deformation characteristics, when the steering control wire portion 8 is Under the action of the reciprocating translational movement of the steering link lifting main rod 5, the steering main rod 30 and the steering connecting portion 6, the steering control line portion 8 can correspondingly apply a reciprocating steering force to the steering plate 13. In this way, the left front wheel and the right front wheel are driven by a steering action to the left or right.

Referring to FIGS. 1-2, in one embodiment, the armrest module includes an armrest base 4 and a handle 1. Yu Yishi In the embodiment, the armrest seat 4 is also provided with a grip 1, the grip 1 is connected to the armrest seat 4 through the grip extension 3, the grip 1 is connected with a speed controller 2; the wheel assembly is provided There is a drive control assembly, which is used to drive the left and right rear wheels of the wheel assembly; the drive control assembly includes a motor 17, a gearbox 16 and an electromagnetic brake 18; the speed controller 2 Connected to the drive control assembly for adjusting the drive speed of the drive control assembly to the left rear wheel and the right rear wheel; preferably, the speed controller 2 may be provided with several different speed control gear positions In this way, the user can realize the acceleration, deceleration or braking operation of the electric wheelchair by operating different speed control gear positions; in addition, the output shaft of the motor 17 is also axially meshed with the input of the gearbox 16, and the The output shafts of the gearbox 16 are respectively connected to the left rear wheel and the right rear wheel, so that the speed controller 2 can instruct the gearbox 16 to drive the left rear wheel and the right rear wheel 29 according to the user's control command. With the adjustment of the motion state, the electromagnetic brake 18 can realize the stable and rapid braking operation of the electric wheelchair, thereby improving the driving safety of the electric wheelchair.

1, the seat assembly includes a seat portion, a seat connecting plate 7 and a seat height adjustment portion; wherein, the seat portion includes a seat back 26 and a seat cushion 27, and the seat connecting plate 7 is provided On the bottom surface of the seat cushion 27, preferably, the seat connecting plate 7 may have a structure of a bent metal plate, and the bent metal plate can perform recoverable elastic deformation performance, so that the seat connecting plate 7 The seat portion and the seat height adjustment portion can be elastically connected, thereby improving the comfort of the seat portion; the seat height adjustment portion includes a front support rod 23, a bottom support rod and an adjustment knob 9. The front support rod 23 It is movably sleeved on the bottom support rod, and the adjustment knob 9 is used to adjust and lock the front support rod 23 and the bottom support rod to adjust the sleeve length of the front support rod 23 on the bottom support rod , So that the user can adjust the height of the seat part according to their actual needs to improve the electric The comfort of a mobile wheelchair; in addition, the front support rod 23 is connected to the seat connecting plate 7, and the bottom support rod is connected to the frame of the wheel assembly.

Referring to Figures 1-2, the wheel assembly includes a frame 10, a front left wheel, a front right wheel, a rear left wheel, a rear right wheel, and an anti-rolling wheel 12; among them, the front left wheel, the front right wheel, the rear left wheel and the The rear right wheels are respectively arranged at the four corners of the frame 10; the anti-rolling wheel 12 is connected to the frame 10 through the anti-rolling wheel bracket 20, and is arranged behind the rear left wheel and the rear right wheel. An anti-tilt wheel 12 is provided in the center, so that when the electric wheelchair is braked or collides with an obstacle, the electric wheelchair can still maintain balance as a whole without tilting, thereby improving the user's ride on the electric wheelchair. The safety; preferably, the front left wheel, front right wheel, rear left wheel, rear right wheel and anti-tip wheel 12 may be solid rubber wheels.

Referring to Figures 1-2, the steering control assembly and the wheel assembly are also connected by a rear support rod 22; the rear support rod 22 is foldable with the steering control assembly and the wheel assembly through the support rod folding connecting portion 19, respectively It is connected to realize the overall folding and storage of the electric wheelchair, so that when the electric wheelchair is not in use, it can be folded and stored into a smaller volume for storage, thereby improving the applicability of the electric wheelchair to different occasions. In addition, the frame 10 of the wheel assembly can also be provided with a portable frame 24, which can facilitate the overall lifting action of the electric wheelchair.

4 is a schematic side view of the structure of an electric wheelchair according to another embodiment of the present invention. In an embodiment of the present invention, the electric wheelchair is not provided with a seat back 26. Furthermore, the link lift rod 25 is detachably provided to the steering link lift main rod 5. In this embodiment, only the connecting rod lifting rod 25 needs to be removed After that, it is rotated by 180 degrees and then installed on the steering link lifting main rod 5 to achieve forward and backward transformation, allowing the user to freely choose the seat direction. In one embodiment, the handle 1 can be further provided with a first movement direction and a second movement direction switch button, only need to press the switch button, that allows the user to control the electric wheelchair to the first movement direction (for example, to Moving forward) or a second moving direction (for example moving backward).

In addition, in an embodiment, the armrest base 4 can also be configured to be detachably disposed on the connecting rod lifting rod 25. In this embodiment, it is only necessary to remove the armrest base 4, rotate it 180 degrees, and then install it on the connecting rod lifting rod 25, so that the forward and backward transformation can be achieved, so that the user can freely choose the seat. To direction.

In addition, as shown in FIG. 4, in this embodiment, the armrest module includes an armrest base 4 and a grip 1. Different from the foregoing embodiment, in this embodiment, the handle 1 is directly and indirectly connected to the steering control line 8, and the user can use the handle 1 to control the steering of the electric wheelchair. In addition, the suspended part of the steering control line 8 in FIG. 4 may interfere with the user. Therefore, in one embodiment, the part of the steering control line 8 can be located on the lower surface of the armrest base 4, and the lower surface of the armrest base 4 extends to the vicinity of the steering link lifting main rod 5. Extend downward. With such a design, the steering control wire portion 8 can be stored more neatly.

Fig. 5 is a reference perspective view of an electric wheelchair without a seat during the first turning of an embodiment of the present invention. Fig. 6 is a reference perspective view of an electric wheelchair without a seat in a second turning state according to an embodiment of the present invention. As shown in Figures 5 and 6, the armrest module is directly and indirectly connected to the steering control line 8, for example In other words, the armrest seat 4 or the grip 1 can be directly and indirectly connected to the steering control line 8. Moreover, the armrest seat 4 of the armrest module or the respective steering control line portion 8 of the first steering control module and the second steering control module of the handle 1 are connected to the steering plate 13 through the corresponding steering control line hinge point 21 Hinge connection. Therefore, the left or right turn of the electric wheelchair can be completed by rotating the armrest module (for example, the armrest seat 4 or the handle 1). According to the present invention, the steering control line 8 is used to control the left or right turn of the electric wheelchair, so the production cost of the electric wheelchair can be reduced.

It can be seen from the content of the above embodiments that the electric wheelchair includes a seat assembly and a wheel assembly. The wheel assembly is used to carry and drive the seat assembly to move. The seat assembly includes an armrest module, A steering control assembly is connected to the armrest module, and the steering control assembly connects the armrest module and the wheel assembly; when the armrest module is under the action of external force, the steering control assembly can be triggered to perform adaptive Traction action, and apply corresponding steering force to the wheel assembly to drive the wheel assembly to make a steering action. It can be seen that the electric wheelchair is different from the prior art that uses a rocker controller such as a T-shaped joystick to control the motion state of the electric wheelchair. The electric wheelchair combines the armrest module on the seat assembly with the steering control assembly. In this way, the user can drive the electric wheelchair to perform an adaptive steering action through the steering control assembly through the corresponding operation of the armrest module. The electric wheelchair uses the armrest module instead of the rocker controller as the steering controller, which not only can It saves the trouble of setting up a rocker controller with a special reserved space, and can quickly and conveniently control the steering of the electric wheelchair without using the expensive rocker controller, thereby greatly reducing the electric power The production cost of the wheelchair and the reduction of the overall volume of the electric wheelchair; in addition, the electric wheelchair is also provided with a folding structure that allows the electric wheelchair to be stored and folded, thereby facilitating and effectively reducing the storage space of the electric wheelchair and Improve the practical applicability of the electric wheelchair to different occasions.

1‧‧‧Grip

2‧‧‧Speed Controller

3‧‧‧Grip extension

4‧‧‧Armrest seat

6‧‧‧Steering connection

7‧‧‧Seat connecting plate

8‧‧‧Steering control line

9‧‧‧Adjusting Knob

10‧‧‧Frame

11‧‧‧Front wheel

12‧‧‧Anti-dumping wheel

20‧‧‧Anti-roll wheel bracket

23‧‧‧Front support rod

24‧‧‧Portable rack

26‧‧‧Seat back

27‧‧‧Seat cushion

29‧‧‧Rear wheel

Claims (10)

An electric wheelchair. The electric chair includes a seat assembly and a wheel assembly, wherein the wheel assembly is used to carry and drive the seat assembly to move, and the seat assembly includes at least one armrest module; the A steering control assembly is connected to at least one armrest module; the steering control assembly connects the at least one armrest module and the wheel assembly; when the at least one armrest module is actuated by an external force, the steering control assembly can be triggered The steering control assembly includes a steering plate, a first steering control module, and a first steering control module to perform an adaptive traction action and apply a corresponding steering force to the wheel assembly to drive the wheel assembly to perform a steering action. Two steering control modules; the first steering control module and the second steering control module are distributed on both sides of the electric wheelchair; the first steering control module and the at least one armrest module of the seat assembly The first armrest module is connected, the second steering control module is connected with the second armrest module of the at least one armrest module of the seat assembly; the wheel assembly includes a first front wheel and a second front wheel, wherein , The first steering control module and the second steering control module each include: a steering control wire portion and a steering link, wherein the steering plate includes two steering control wire hinge points, and the first steering control module Each of the steering control line of the group and the second steering control module passes through the corresponding hinge point of the steering control line Is hingedly connected with the steering plate; the steering plate is provided with a first rotating shaft through, the steering link of the first steering control module is connected with the first rotating shaft and the first front wheel, the second steering control module The steering link is connected with the first rotating shaft and the second front wheel. The electric wheelchair according to claim 1, wherein the first steering control module and the second steering control module are symmetrically distributed on the left and right sides of the electric wheelchair; the first armrest module is connected as a left armrest module , And the second armrest module is connected to the right armrest module; the hinge points of the steering control lines of the steering plate are symmetrically distributed; the first front wheel is the left front wheel, and the second front wheel is the right front wheel. The electric wheelchair according to claim 2, wherein the first steering control module and the second steering control module each include a steering link lift rod, a steering link lift main rod, a steering main rod, and Steering connection part; one end of the steering link lift rod is connected with the at least one armrest module, the other end of the steering link lift rod is sleeved in the steering link lift main rod; the steering link lift main rod sleeve Set in the steering main rod; the steering main rod is pivotally connected to the steering connecting portion; one end of the steering control wire portion is pivotally connected to the steering connecting portion, and the other end of the steering control wire portion is hinged with the steering plate connection. The electric wheelchair according to claim 3, wherein the front end of the steering plate is provided with the first rotation shaft, and the rotation of the first steering control module The steering link is connected to the first rotating shaft on the lower surface of the steering plate, and the steering connecting rod of the second steering control module is connected to the first rotating shaft on the upper surface of the steering plate. The electric wheelchair according to claim 4, wherein the wheel assembly further includes a front wheel beam, a main frame, a left rear wheel and a right rear wheel; the front wheel beam is connected to the left front wheel and the right front wheel, respectively; The steering link of the steering control module is simultaneously rotatably connected with the left front wheel shaft and the front wheel beam shaft through the left front wheel shaft; the steering link of the second steering control module is simultaneously connected to the right front wheel and the right front wheel and the right front wheel through the right front wheel shaft. The front wheel beam shaft is rotatably connected; the rear end of the steering plate is provided with a second rotation shaft, which is rotatably connected with the main frame, and the rear side of the main frame is connected to the left rear wheel and the right rear Wheel connection. An electric wheelchair. The electric wheelchair includes a seat assembly and a wheel assembly. The wheel assembly is used to carry and drive the seat assembly to move. The seat assembly includes at least one armrest module; A steering control assembly is connected to an armrest module; the steering control assembly connects the at least one armrest module and the wheel assembly; when the at least one armrest module is actuated by an external force, the steering control assembly can be triggered Perform an adaptive traction action, and apply a corresponding steering force to the wheel assembly to drive the wheel assembly to perform a steering action. The steering control assembly includes a steering plate, a first steering control module, and a second steering control module. Steering control module; the first steering control module and the second steering control module are distributed on both sides of the electric wheelchair; The first steering control module is connected to the left armrest module of the at least one armrest module of the seat assembly, and the second steering control module is connected to the right armrest of the at least one armrest module of the seat assembly Module connection; the wheel assembly includes a left front wheel and a right front wheel, wherein the first steering control module and the second steering control module each include a steering link lift rod connected in turn, a steering link lift main rod, The steering main rod, the steering connection part, the steering control line and the steering link; one end of the steering link lift rod is connected with the at least one armrest module, and the other end of the steering link lift rod is sleeved on the steering link The steering link lift main rod is sleeved in the steering main rod; the steering main rod is pivotally connected to the steering connecting part; one end of the steering control line is pivotally connected to the steering connecting part, The other end of the steering control line is hingedly connected with the steering plate; one end of the steering link is rotatably connected with the steering plate shaft, and the other end of the steering link is hingedly connected with the corresponding left front wheel or the right front wheel, wherein , The steering control line has a bendable and deformable flat structure; when the at least one armrest module is subjected to the external force, the at least one armrest module will drive the connecting steering link lifting rod, the steering link lifting main The rod, the steering main rod, and the steering connecting portion perform a translational movement, so that the steering control wire portion is deformed. At this time, the steering control wire portion will apply a steering force to the steering plate due to the deformation, thereby causing the steering The plate drives the left front wheel and the right front wheel to perform a steering action under the action of the steering force. The electric wheelchair according to claim 1, wherein the at least one armrest module is provided with a grip, the grip is connected with a speed controller; the wheel assembly is provided with a drive control assembly, the drive control assembly is used To drive the left and right rear wheels of the wheel assembly; the drive control assembly includes a motor, a gearbox and an electromagnetic brake; the speed controller is connected to the drive control assembly for adjusting the drive control assembly Match the driving speed of the left rear wheel and the right rear wheel. The electric wheelchair according to claim 1, wherein the seat assembly includes a seat portion, a seat connecting plate, and a seat height adjustment portion; wherein the seat portion includes a seat back and a seat cushion, and the seat The seat connecting plate is arranged on the bottom surface of the seat cushion to elastically connect the seat portion and the seat height adjustment portion; the seat height adjustment portion includes a front support rod, a bottom support rod and an adjustment knob, and the front support rod is movable The ground is sleeved on the bottom support rod, and the adjustment knob is used to adjust and lock the front support rod and the bottom support rod to adjust the sleeve length of the front support rod on the bottom support rod; the front support The rod is connected with the seat connecting plate, and the bottom support rod is connected with the frame of the wheel assembly. The electric wheelchair according to claim 1, wherein the wheel assembly includes a frame, a front left wheel, a front right wheel, a rear left wheel, a rear right wheel, and an anti-rolling wheel; wherein, The front left wheel, the front right wheel, the rear left wheel and the rear right wheel are respectively arranged at the four corners of the frame; the anti-rolling wheel is connected to the frame through an anti-rolling wheel bracket, and is arranged on the rear left wheel and the rear left wheel. Behind the rear right wheel. The electric wheelchair according to claim 1, wherein the steering control assembly and the wheel assembly are also connected by a rear support rod; the rear support rod is respectively foldably connected with the steering control assembly and the wheel assembly to The overall folding and storage of the electric wheelchair is realized; or, the frame of the wheel assembly is also provided with a portable frame.

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