Electric and manual dual-purpose wheelchair

Abstract

The utility model relates to the technical field of wheelchairs, and discloses an electric and manual dual-purpose wheelchair which comprises a wheelchair body, the wheelchair body comprises driving wheels (1), hub motors (2) are installed on the driving wheels (1) and drive the driving wheels (1) to rotate through the hub motors (2), and electromagnetic damper brakes (3) connected with the driving wheels (1) are further installed on the driving wheels (1). The electromagnetic damper further comprises a manual brake release assembly, the manual brake release assembly comprises a pull rope (4), the electromagnetic damper brake (3) comprises a brake release handle (31), and the pull rope (4) is connected with the brake release handle (31). The wheelchair is simple in structure, the appearance size of the wheelchair is kept consistent with that of an original wheelchair, and manual operation and electric power assisting are easily achieved through mode switching; operation is simple, and a driver can control the wheelchair to run through the rocker. After the power assisting device is installed, the folding and carrying functions of the wheelchair are not affected, and more convenient and efficient use experience is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelchairs, in particular to an electric and manual dual-purpose wheelchair. Background Art

[0002] Manual wheelchairs are an important tool for assisting people with disabilities. Although electric wheelchairs were approved for production in 1940, manual wheelchairs are still popular today because of their easy control and flexibility. This type of wheelchair is easy to operate, and users can easily control its movement and speed changes. It is particularly suitable for use in environments with limited space or dense traffic, showing its unique advantages.

[0003] However, as society progresses, the disabled and mobility-impaired people have a growing need to expand their social activities, and traditional manual wheelchairs are no longer sufficient to meet these needs in some aspects. Although electric wheelchairs expand the scope of outdoor activities, they are inconvenient to use indoors, and their weight and design make them difficult to carry and fold.

[0004] In response to these problems, we proposed an innovative solution - a dual-function wheelchair with both manual and electric functions. This wheelchair not only retains the ease of operation and flexibility of a manual wheelchair, but also increases the user's range of motion through the electric power-assist system, improving the convenience of use. It combines the advantages of two driving modes, allowing people with disabilities and limited mobility to participate in social activities more easily, and enjoy a freer and more comfortable mobility experience both indoors and outdoors. This innovative design is committed to providing a more humane and efficient mobility aid to improve the quality of life of people with disabilities and limited mobility. Utility Model Content

[0005] The utility model aims at the shortcomings of the prior art and provides an electric and manual dual-purpose wheelchair.

[0006] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0007] An electric and manual dual-purpose wheelchair comprises a wheelchair body, the wheelchair body comprises a driving wheel, a hub motor is installed on the driving wheel and the driving wheel is driven to rotate by the hub motor, an electromagnetic brake connected to the driving wheel is also installed on the driving wheel, and the electromagnetic brake controls the braking of the driving wheel; it also comprises a manual brake release assembly, the manual brake release assembly comprises a pull rope, the electromagnetic brake comprises a brake release handle, the pull rope is connected to the brake release handle, so as to control the operation of the electromagnetic brake, when the pull rope pulls the brake release handle, the electromagnetic brake does not work, and the driving wheel can be moved manually at this time.

[0008] Preferably, the pull rope is connected to the brake release handle and drives the brake release handle to move upward, so that the electromagnetic brake does not work and the wheelchair can be moved manually; it also includes a spring, the lower end of the spring is fixed on the wheelchair body, the upper end of the spring is connected to the brake release handle, the brake release handle moves downward, the spring contracts, so that the electromagnetic brake is effective, and the wheelchair can be moved electrically.

[0009] Preferably, the manual brake release assembly also includes an adjustment seat fixedly mounted on the wheelchair body, the adjustment seat is provided with an adjustment slot, and also includes an adjustment handle, one end of the adjustment handle is hinged to the adjustment seat, the other end of the adjustment handle is a free end and swings in the adjustment slot, and the pull rope is fixedly connected to the free end of the adjustment handle.

[0010] Preferably, the adjustment slot is a vertical slot and also includes a card slot, the lower part of the card slot is connected to the lower part of the adjustment slot, the upper part of the card slot is a positioning card slot that cooperates with the adjustment handle, and the positioning card slot is lower than the upper end surface of the adjustment slot.

[0011] Preferably, the adjustment seat is located on the left side or the right side of the wheelchair body; and a handle is also installed at the free end of the adjustment handle.

[0012] Preferably, the wheelchair body includes a backrest, the lower part of which is hinged to the wheelchair body through a rotating shaft, and also includes an adjustment rod and an adjustment slide groove provided on the wheelchair body, one end of the adjustment rod is hinged to the upper part of the backrest, and the other end of the adjustment rod cooperates with the adjustment slide groove and slides along it.

[0013] Preferably, a star-shaped swivel is installed at the other end of the adjustment rod, and the star-shaped swivel cooperates with the adjustment slide. The adjustment slide is provided with a plurality of positioning grooves extending downward, and the star-shaped swivel slides into the positioning grooves to adjust the seat back.

[0014] As a preferred embodiment, the wheelchair further includes a controller and an electric operating panel fixed on the wheelchair body, and a motor connected to the driving wheel. The electric operating panel is connected to the controller and controls the operation of the electromagnetic brake and the motor through the controller. A release button is installed on the electric operating panel. After the wheelchair is powered on, the user only needs to press and hold the release button for 3 seconds to activate the electromagnetic brake, thereby switching to manual driving or pushing mode. When the user wants to resume electric control, the electromagnetic brake can be turned off by the rocker on the electric operating panel, and the wheelchair operation in electric mode can be easily realized.

[0015] Preferably, a foot pedal is installed on the wheelchair body, an obstacle avoidance sensor is installed on the foot pedal, and the obstacle avoidance sensor is connected to the controller and sends an obstacle signal to the controller.

[0016] Preferably, it further includes an anti-dump wheel, which includes a wheel frame and a small wheel. The wheel frame is fixed on the wheelchair body, and the small wheel is installed on the wheel frame through an axle. The diameter of the small wheel is smaller than the driving wheel and is located behind the driving wheel.

[0017] The utility model has significant technical effects due to the adoption of the above technical solutions: the existing manual wheelchair power-assist system usually includes components such as drive wheels, wheel frames, steering handles, suspension mechanisms and batteries. When electric power is required, these components must be connected to the wheelchair body, and the wheelchair can be driven by the drive wheels and steering handles. This structure is similar to the front-drive tricycles on the market. After installation, the size and shape of the wheelchair will change. To restore the manual mode, the power-assist device must be removed and placed aside, which may cause inconvenience. In contrast, the present application replaces the unpowered rear wheels of the manual wheelchair with electric-driven rear wheels of the same size and integrates an electric drive device at the axle of the rear wheel, thereby maintaining the original installation method of the wheelchair and the consistency of the rear wheels of the manual wheelchair. The wheelchair controller is designed to be installed on the armrests on the left and right, and the battery adopts a portable design, which can be conveniently hung behind the backrest and is easy to disassemble; the user only needs to operate the controller to easily drive the wheelchair. Through the above comparison, it can be seen that the existing technical solutions have some shortcomings: the structure is relatively complex, the size is large, and it is not suitable for driving in narrow spaces; due to the addition of multiple components, the overall weight increases, which may affect the portability and maneuverability of the wheelchair; after the power-assist device is installed, the wheelchair becomes difficult to push and cannot be folded; the design of the tricycle also affects the overall appearance of the wheelchair. The advantages of this application are: simple structure, the appearance and size are consistent with the original wheelchair, and manual operation and electric power assistance can be easily achieved through mode switching; simple operation, the driver can control the wheelchair through the joystick. After installing the power-assist device of the utility model, the folding and carrying functions of the wheelchair are not affected, providing a more convenient and efficient use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model Figure I .

[0019] Figure 2 This is a schematic diagram of the structure of the utility model Figure II .

[0020] Figure 3 It is a partial enlarged view of the utility model.

[0021] Figure 4 It is a structural schematic diagram of the adjustment seat and the adjustment handle.

[0022] Figure 5 It is a schematic diagram of the structure of the adjusting rod.

[0023] Figure 6 It is a structural diagram of the adjusting chute.

[0024] The names of the parts indicated by the numerical labels in the accompanying drawings are as follows: 1-driving wheel, 2-hub motor, 3-electromagnetic brake, 4-pull rope, 5-adjusting seat, 6-adjusting handle, 7-foot pedal, 8-backrest, 9-electric operating panel, 10-controller, 11-anti-dump wheel, 31-release handle, 32-spring, 51-adjusting slot, 52-card slot, 521-positioning bayonet, 61-handle, 71-obstacle avoidance sensor, 81-adjusting rod, 811-swivel shaft, 82-adjusting slide slot, 821-positioning slot, 111-wheel frame, 112-small wheel. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Embodiment 1: An electric and manual dual-purpose wheelchair, as shown in the figure, includes a wheelchair body, the wheelchair body includes a driving wheel 1, a hub motor 2 is installed on the driving wheel 1 and the wheel hub motor 2 drives the driving wheel 1 to rotate, an electromagnetic brake 3 connected to the driving wheel 1 is also installed on the driving wheel 1, and the electromagnetic brake 3 controls the braking of the driving wheel 1; it also includes a manual brake release component, the manual brake release component includes a pull rope 4, the electromagnetic brake 3 includes a brake release handle 31, the pull rope 4 is connected to the brake release handle 31, so as to control the operation of the electromagnetic brake 3, when the pull rope 4 pulls the brake release handle 31, the electromagnetic brake 3 does not work, and the driving wheel 1 can be moved manually at this time.

[0027] The pull rope 4 is connected to the brake release handle 31 and drives the brake release handle 31 to move upward, thereby releasing the brake of the electromagnetic brake 3; it also includes a spring 32, the lower end of the spring 32 is fixed on the wheelchair body, and the upper end of the spring 32 is connected to the brake release handle 31.

[0028] The manual brake release assembly also includes an adjustment seat 5 fixedly mounted on the wheelchair body, the adjustment seat 5 is provided with an adjustment slot 51, and also includes an adjustment handle 6, one end of the adjustment handle 6 is hinged to the adjustment seat 5, the other end of the adjustment handle 6 is a free end and swings in the adjustment slot 51, and the pull rope 4 is fixedly connected to the free end of the adjustment handle 6.

[0029] The adjustment slot 51 is a vertical slot, and also includes a slot 52. The lower part of the slot 52 is connected to the lower part of the adjustment slot 51. The upper part of the slot 52 is a positioning bayonet 521 that cooperates with the adjustment handle 6. The positioning bayonet 521 is lower than the upper end surface of the adjustment slot 51. When it is necessary to start the manual mode, the adjustment handle 6 is pressed downward to move it to the lower part of the adjustment slot 51, and then the adjustment handle 6 is pushed to slide into the slot 52. After releasing the external force, due to the action of the spring 32, the adjustment handle 6 is driven upward to be clamped in the positioning bayonet 521 and fixed. At this time, the pull rope 4 is pulled to lift the brake release handle 31 and stop the braking of the electromagnetic brake 3. The preparation work of the manual mode is completed; when it is necessary to start the electric mode, the adjustment handle 6 is pressed downward to return it to the adjustment slot 51. At this time, the pull rope 4 is also released, and the brake release handle 31 is downward through the return action of the spring 32 to start the braking of the electromagnetic brake 3.

[0030] The adjustment seat 5 is located on the left side or the right side of the wheelchair body; a handle 61 is also installed at the free end of the adjustment handle 6.

[0031] The user has multiple modes to choose from when operating the wheelchair. When the power is on, the user can switch to manual mode by simply pressing the button on the controller, allowing the user to push the wheelchair manually or with the assistance of a caregiver. If the wheelchair needs to be electrically controlled, the user can easily switch to electric mode by simply operating the joystick on the controller.

[0032] Even in the event of a power outage or failure, the user can manually release the brake to disengage the wheelchair's brake system, allowing it to continue to be operated manually or pushed by a caregiver. In addition, when the user needs to stop using the wheelchair, simply operate the brakes on both sides of the wheelchair to ensure that the wheelchair is parked safely.

[0033] Embodiment 2: Same as Embodiment 1, except that the wheelchair body includes a seat back 8, the lower part of which is hinged to the wheelchair body through a rotating shaft, and also includes an adjustment rod 81 and an adjustment slot 82 provided on the wheelchair body, one end of the adjustment rod 81 is hinged to the upper part of the seat back 8, and the other end of the adjustment rod 81 cooperates with the adjustment slot 82 and slides along it.

[0034] A star-shaped rotating shaft 811 is installed at the other end of the adjusting rod 81, and the star-shaped rotating shaft 811 cooperates with the adjusting slide 82. The adjusting slide 82 is provided with a plurality of positioning grooves 821 extending downward. The star-shaped rotating shaft 811 slides into the positioning grooves 821 to realize the adjustment and positioning of the chair back 8.

[0035] In order to meet the user's specific needs for the backrest angle, the wheelchair is equipped with a convenient backrest adjustment device. The following are the detailed steps for adjusting the backrest angle: 1. Unlock the backrest: First, the user needs to find and rotate the star-shaped swivel 811 to unlock the backrest 8. 2. Lift the backrest: After unlocking, lift the star-shaped swivel 811 upward so that it can be smoothly inserted into the adjustment slot 82. 3. Adjust the angle: After inserting the handle into the adjustment slot 82, by moving the star-shaped swivel 811 back and forth in the adjustment slot 82, the backrest 8 can be driven to rotate accordingly, thereby adjusting the angle of the backrest 8. 4. Fix the position: When you find a suitable backrest position, you need to insert the star-shaped swivel 811 into the positioning slot 821 and tighten it to ensure that the angle of the backrest 8 is fixed. Through the above simple operation process, the occupant can easily achieve personalized adjustment of the backrest 8 angle to obtain the best comfort and support.

[0036] Embodiment 3: The same as Embodiment 1, except that it also includes a controller 10 and an electric operating panel 9 fixed on the wheelchair body, and also includes a motor connected to the driving wheel 1. The electric operating panel 9 is connected to the controller 10 and controls the operation of the electromagnetic brake 3 and the motor through the controller 10; a release button is installed on the electric operating panel 9. After the wheelchair is powered on, the user only needs to press and hold the release button for 3 seconds to activate the electromagnetic brake 3, thereby switching to manual driving or pushing mode. When the user wants to resume electric control, the electromagnetic brake 3 can be turned off by simply using the rocker on the electric operating panel 9, and the wheelchair operation in electric mode can be easily realized.

[0037] A foot pedal 7 is installed on the wheelchair body, and an obstacle avoidance sensor 71 is installed on the foot pedal 7. The obstacle avoidance sensor 71 is connected to the controller 10 and sends an obstacle signal to the controller 10.

[0038] The front of the wheelchair is equipped with two advanced obstacle avoidance sensors 71, which can effectively detect obstacles in front, thereby avoiding collisions caused by improper operation and ensuring the safety of users during use.

[0039] Embodiment 4: Same as Embodiment 1, except that it also includes an anti-dump wheel 11, the anti-dump wheel 11 includes a wheel frame 111 and a small wheel 112, the wheel frame 111 is fixed on the wheelchair body, the small wheel 112 is installed on the wheel frame 111 through an axis, the diameter of the small wheel 112 is smaller than the driving wheel 1 and is located behind the driving wheel 1.

[0040] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. An electric and manual dual-purpose wheelchair, comprising a wheelchair body, the wheelchair body comprising a driving wheel (1), characterized in that: A hub motor (2) is mounted on the driving wheel (1) and is driven to rotate by the hub motor (2). An electromagnetic brake (3) connected to the driving wheel (1) is also mounted on the driving wheel (1). The driving wheel (1) also includes a manual brake release assembly, the manual brake release assembly includes a pull rope (4), and the electromagnetic brake (3) includes a brake release handle (31), and the pull rope (4) is connected to the brake release handle (31).

2. The electric and manual dual-purpose wheelchair according to claim 1, characterized in that: The pull rope (4) is connected to the brake release handle (31) and drives the brake release handle (31) to move upward; the wheelchair further comprises a spring (32), the lower end of the spring (32) is fixedly mounted on the wheelchair body, and the upper end of the spring (32) is connected to the brake release handle (31).

3. The electric and manual dual-purpose wheelchair according to claim 1, characterized in that: The manual brake release assembly further comprises an adjustment seat (5) fixedly mounted on the wheelchair body, the adjustment seat (5) being provided with an adjustment slot (51), and an adjustment handle (6), one end of the adjustment handle (6) being hinged on the adjustment seat (5), the other end of the adjustment handle (6) being a free end and swinging in the adjustment slot (51), and the pull rope (4) being fixedly connected to the free end of the adjustment handle (6).

4. The electric and manual dual-purpose wheelchair according to claim 3, characterized in that: The adjusting groove (51) is a vertical groove, and further comprises a clamping groove (52), the lower portion of the clamping groove (52) being in communication with the lower portion of the adjusting groove (51), the upper portion of the clamping groove (52) being a positioning clamping notch (521) cooperating with the adjusting handle (6), and the positioning clamping notch (521) being lower than the upper end surface of the adjusting groove (51).

5. The electric and manual dual-purpose wheelchair according to claim 3, characterized in that: The adjustment seat (5) is located on the left side or the right side of the wheelchair body; the free end of the adjustment handle (6) is also provided with a handle (61).

6. The electric and manual dual-purpose wheelchair according to claim 1, characterized in that: The wheelchair body comprises a seat back (8), the lower part of which is hinged to the wheelchair body via a rotating shaft, and further comprises an adjusting rod (81) and an adjusting slide groove (82) provided on the wheelchair body, one end of the adjusting rod (81) being hinged to the upper part of the seat back (8), and the other end of the adjusting rod (81) being matched with the adjusting slide groove (82) and sliding along the same.

7. The electric and manual dual-purpose wheelchair according to claim 6, characterized in that: The other end of the adjusting rod (81) is provided with a rotating shaft (811), the rotating shaft (811) cooperates with the adjusting slide groove (82), the adjusting slide groove (82) is provided with a plurality of positioning grooves (821) extending downward, and the rotating shaft (811) slides into the positioning grooves (821) to achieve adjustment and positioning of the chair back (8).

8. The electric and manual dual-purpose wheelchair according to claim 1, characterized in that: It also includes a controller (10) and an electric operating panel (9) fixedly mounted on the wheelchair body, and a motor connected to the drive wheel (1); the electric operating panel (9) is connected to the controller (10) and controls the operation of the electromagnetic brake (3) and the motor through the controller (10); and a brake release button is installed on the electric operating panel (9).

9. The electric and manual dual-purpose wheelchair according to claim 8, characterized in that: A foot pedal (7) is mounted on the wheelchair body, an obstacle avoidance sensor (71) is mounted on the foot pedal (7), and the obstacle avoidance sensor (71) is connected to the controller (10) and sends an obstacle signal to the controller (10).

10. The electric and manual dual-purpose wheelchair according to claim 1, characterized in that: The wheelchair further comprises an anti-tipping wheel (11), the anti-tipping wheel (11) comprising a wheel frame (111) and a small wheel (112), the wheel frame (111) being fixedly mounted on the wheelchair body, the small wheel (112) being mounted on the wheel frame (111) via an axle, the small wheel (112) having a smaller diameter than the driving wheel (1) and being located behind the driving wheel (1).

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