Intelligent electric wheelchair for people with disabled legs and feet

Abstract

The utility model relates to the field of intelligent electric wheelchairs, in particular to an intelligent electric wheelchair for people with inconvenient legs and feet, which comprises a seat, a backrest, a base, an electric push rod, a battery pack, a fixing block, armrests, a pinch plate, a pressing plate, a connecting groove and a telescopic rod. The rear side of the seat is connected with a backrest, the center of the lower end of the seat is provided with a battery pack, two sides of the lower end of the battery pack are symmetrically provided with two groups of electric push rods for lifting the electric wheelchair, piston ends of the electric push rods are fixedly connected with a base, and the centers of the two sides of the seat are vertically provided with fixing blocks of which the upper ends are provided with armrests. According to the intelligent electric wheelchair for the disabled legs and feet, a user is helped to get on and off the wheelchair easily through the automatic lifting function, dependence on external help is reduced, and the wheelchair is convenient to use through the auxiliary wheels and the elastic connecting frame. The stability and the passing capacity of the wheelchair on the uneven ground are improved, and the risk of overturning is reduced.

Description

Technical Field

[0001] This utility model relates to the field of intelligent electric wheelchairs, and more particularly to an intelligent electric wheelchair for people with mobility impairments. Background Technology

[0002] Intelligent electric wheelchairs are a new generation of intelligent wheelchairs upgraded from traditional manual wheelchairs by incorporating high-performance power drive devices, intelligent control devices, batteries, and other components. They combine advanced technologies from modern precision mechanics, intelligent numerical control, and engineering mechanics, greatly improving the convenience and comfort of travel.

[0003] Traditional wheelchairs usually require assistance to get in and out, which is very inconvenient for users with mobility impairments. In addition, ordinary wheelchairs are prone to tipping over on uneven ground, posing a safety hazard to users. For users with limited hand dexterity, operating a traditional wheelchair can be very difficult.

[0004] Therefore, traditional wheelchairs typically require assistance to get in and out, which is very inconvenient for users with mobility impairments. For users with limited hand dexterity, operating a traditional wheelchair can be very difficult and prone to tipping over. A smart electric wheelchair for users with mobility impairments could be designed, which uses an automatic lifting function to help users get in and out of the wheelchair easily, reducing reliance on external assistance. With auxiliary wheels and a flexible connecting frame, the wheelchair's stability and maneuverability on uneven ground are improved, reducing the risk of tipping over. Utility Model Content

[0005] To overcome the problem that traditional wheelchairs usually require assistance to get in and out, which is very inconvenient for users with leg disabilities, and that operating a traditional wheelchair can be very difficult and prone to tipping over for users with limited hand dexterity.

[0006] The technical solution of this utility model is as follows: an intelligent electric wheelchair for people with mobility impairments, comprising a seat, backrest, base, electric push rod, battery pack, fixing block, armrest, buckle plate, pressure plate, connecting groove, and telescopic rod; the backrest is connected to the rear side of the seat, the battery pack is installed at the center of the lower end of the seat, two sets of electric push rods for lifting the electric wheelchair are symmetrically installed on both sides of the lower end of the battery pack, the piston end of the electric push rod is fixedly connected to the base, the fixing block is vertically installed at the center of both sides of the seat, the armrest is installed at the upper end of the fixing block, the telescopic rod for raising or lowering the armrest is installed between the armrest and the fixing block, the pressure plate is elastically installed on the side surface of the armrest, the surface of the telescopic rod is provided with buckle plate fixedly connected to the pressure plate, and the surface of the fixing block is provided with connecting groove for buckle plate fastening connection.

[0007] Preferably, the seat is the main support part for the user, the backrest is connected to the back of the seat to provide support for the back, the battery pack is installed at the center of the lower end of the seat to provide power, the base can be raised or lowered by the telescopic movement of the electric push rod, thereby realizing the raising and lowering of the entire wheelchair, the armrests are connected to the fixed block by a telescopic rod, the telescopic rod allows the armrest height to be adjusted, the pressure plate is elastically installed on the side surface of the armrest, when the user adjusts the armrest height, the pressure plate will move with the movement of the telescopic rod, the telescopic rod is installed between the armrest and the fixed block, allowing the armrest to move up and down within a certain range.

[0008] As a preferred embodiment, a rotary motor is installed at the center of both ends of the battery pack, and the output end of the rotary motor is provided with a rotating shaft.

[0009] Preferably, a movable wheel is fixedly connected to the outside of the rotating shaft, and a connecting block is vertically installed on the surface of the battery pack.

[0010] Preferably, a pedal is fixedly connected to the lower end of the connecting block, and two sets of connecting rods are installed on the inclined surface of the battery pack.

[0011] Preferably, a connecting column is fixedly connected to the end of the connecting rod, and auxiliary wheels are installed on both sides of the connecting column. A drive shaft connected to the connecting column is installed on the inner side of the auxiliary wheel.

[0012] Preferably, a control panel is installed at the end of the armrest away from the backrest, and a mounting bracket is installed on the surface of the backrest away from the control panel.

[0013] Preferably, both sides of the mounting bracket are equipped with flexible connecting brackets that connect to the battery pack, and both sides of the upper end of the mounting bracket are equipped with movable push handles.

[0014] The beneficial effects of this utility model are as follows: Compared with a traditional intelligent electric wheelchair for people with mobility impairments, this new model allows users to get in and out of the wheelchair more easily through the lifting function of the electric push rod and the height adjustment function of the armrests, reducing reliance on external assistance. The design of the pressure plate, buckle plate and connecting groove ensures that the armrests are firmly locked, avoiding safety hazards caused by accidental loosening. The adjustable armrests and backrest provide users with a more personalized riding experience, reducing discomfort caused by long-term riding. All adjustment operations are simple and easy to perform. Users can complete the required settings by simply pressing and pulling, which is especially suitable for users with limited hand dexterity. Attached Figure Description

[0015] Figure 1 The diagram shown is a schematic representation of the overall structure of an intelligent electric wheelchair for people with mobility impairments according to this utility model.

[0016] Figure 2 The diagram shown is a schematic representation of the electric push rod structure of an intelligent electric wheelchair for people with mobility impairments according to this utility model.

[0017] Figure 3 The diagram shown is a schematic representation of the structure of a mobile wheelchair for people with mobility impairments according to this utility model.

[0018] Figure 4 The diagram shown is a schematic diagram of the connection slot structure for an intelligent electric wheelchair for people with mobility impairments according to this utility model.

[0019] Explanation of reference numerals in the attached diagram: 1. Seat; 2. Backrest; 3. Connecting column; 4. Auxiliary wheel; 5. Connecting block; 6. Pedal; 7. Control panel; 8. Connecting rod; 9. Moving push handle; 10. Flexible connecting frame; 11. Base; 12. Electric push rod; 13. Battery pack; 14. Moving wheel; 15. Rotating shaft; 16. Rotary motor; 17. Fixing block; 18. Armrest; 19. Buckle plate; 20. Pressure plate; 21. Fixing frame; 22. Connecting groove; 23. Telescopic rod. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figure 1 - Figure 4 This utility model provides an embodiment of an intelligent electric wheelchair for people with mobility impairments, comprising a seat 1, a backrest 2, a base 11, an electric push rod 12, a battery pack 13, a fixing block 17, armrests 18, buckle plates 19, pressure plates 20, a connecting groove 22, and a telescopic rod 23. The backrest 2 is connected to the rear side of the seat 1. The battery pack 13 is installed at the center of the lower end of the seat 1. Two sets of electric push rods 12 for lifting the electric wheelchair are symmetrically installed on both sides of the lower end of the battery pack 13. The piston end of the electric push rod 12 is fixedly connected to the base 11. The fixing blocks 17 are vertically installed at the center of both sides of the seat 1. The armrests 18 are installed at the upper end of the fixing blocks 17. The telescopic rod 23 for raising or lowering the armrests 18 is installed between the armrests 18 and the fixing blocks 17. The pressure plates 20 are elastically installed on the side surface of the armrests 18. The surface of the telescopic rod 23 is provided with buckle plates 19 that are fixedly connected to the pressure plates 20. The surface of the fixing block 17 is provided with a connecting groove 22 that is fastened to the buckle plates 19.

[0022] Please see Figure 1 - Figure 2In this embodiment, a rotary motor 16 is installed at the center of both ends of the battery pack 13. The output end of the rotary motor 16 is provided with a rotating shaft 15. The rotating shaft 15 driven by the rotary motor 16 can precisely control the steering angle of the wheelchair, enabling the wheelchair to turn easily in confined spaces. This is especially important for movement indoors or in crowded environments, allowing users to control the wheelchair more freely. The rotary motor 16 typically has a high torque output, providing sufficient power when climbing slopes or overcoming obstacles. A movable wheel 14 is fixedly connected to the outside of the rotating shaft 15. A connecting block 5 is vertically installed on the surface of the battery pack 13. The movable wheel 14 is directly fixedly connected to the outside of the rotating shaft 15, reducing the number of intermediate transmission components and making power transmission more direct and efficient. This design can minimize energy loss and improve the energy conversion efficiency of the motor. The connecting block 5 can help distribute the weight of the battery pack 13, making the center of gravity of the wheelchair more balanced and reducing swaying or tilting caused by uneven weight distribution during driving.

[0023] Please see Figure 2 - Figure 3 In this embodiment, a footrest 6 is fixedly connected to the lower end of the connecting block 5, and two sets of connecting rods 8 are installed on the inclined surface of the battery pack 13. The footrest 6 provides a stable position for the user's feet, which can effectively reduce leg pressure and fatigue, especially during long-term sitting. This is particularly important for users with mobility impairments, as they may need to maintain a seated posture for longer periods. The connecting rods 8 extend from the inclined surface of the battery pack 13, helping to distribute the weight of the battery pack 13 and making the wheelchair's center of gravity more balanced. This not only improves stability during driving but also reduces swaying or tilting caused by uneven weight distribution. A connecting post 3 is fixedly connected to the end of the connecting rod 8, and two connecting rods 8 are installed on both sides of the connecting post 3. The auxiliary wheel 4 has a drive shaft connected to the connecting column 3 installed on its inner side. The connecting column 3, as an extension of the connecting rod 8, further enhances the structural strength of the entire wheelchair frame. It provides a stable mounting point for the auxiliary wheel 4, ensuring its sturdiness and reliability under various driving conditions. The auxiliary wheels 4 on both sides of the connecting column 3 form a four-point support structure, which significantly improves the stability of the wheelchair on uneven ground. Even on slopes or potholes, the auxiliary wheel 4 can provide additional support to prevent the wheelchair from tipping over or falling. The auxiliary wheel 4 can share some of the pressure of the main wheel, especially under heavy loads or complex terrain, reducing the wear of the main wheel and extending its service life.

[0024] Please see Figure 3 - Figure 4In this embodiment, a control panel 7 is installed at the end of the armrest 18 away from the backrest 2, and a fixing frame 21 is installed on the surface of the end of the backrest 2 away from the control panel 7. The fixing frame 21 is installed at the end of the backrest 2 away from the control panel 7, providing additional support for the overall frame of the wheelchair and enhancing the stability of the structure. Especially when traveling at high speed or passing through complex terrain, the fixing frame 21 can help prevent the frame from deforming or being damaged, ensuring the user's riding safety. Seat belt fixing points can be installed on the fixing frame 21 to ensure that the user can be firmly fixed to the seat 1 during travel, especially during high-speed travel or sharp turns, providing additional safety protection. Both sides of the fixing frame 21 are equipped with elastic connecting frames 10 connected to the battery pack 13, and both sides of the upper end of the fixing frame 21 are equipped with movable push handles 9. The elastic connecting frames 10 connect the fixing frame 21 to the battery pack 13 through flexible materials or spring structures, which can absorb and disperse vibrations during travel. This not only reduces the bumps when the wheelchair is traveling on uneven ground, but also protects the battery pack 13 and other electronic components from impact damage. The design of the flexible connecting frame 10 can also reduce the pressure of the seat 1 and backrest 2 on the user's body, especially when traversing complex terrain, reducing the damage to the spine and joints caused by sudden impacts.

[0025] When the user is about to sit down, they first activate the lowering function of the electric push rod 12 via the control panel 7 or remote control. The electric push rod 12 will retract, causing the base 11 and seat 1 to slowly descend to ground height. The user can then grasp the armrests 18 on both sides and use their height adjustment function to adjust the armrests 18 to a suitable height to help stabilize their body and sit down smoothly. Once the user is fully seated, the electric push rod 12 is locked in its highest position for use. When the user is about to stand up, they activate the electric push rod 12 via the control panel 7 or remote control. With the lifting function activated, the electric push rod 12 extends and gradually lifts the base 11 and seat 1, allowing the user to smoothly transition from a sitting to a standing position. The user can then grasp the armrests 18 on both sides and use the height adjustment function of the armrests 18 to raise them, helping them maintain balance and stand up easily. The user can press the pressure plate 20 on the side surface of the armrest 18 to separate the pressure plate 20 from the buckle plate 19 on the telescopic rod 23, releasing the lock between the buckle plate 19 and the connecting groove 22 of the fixing block 17. The user can then move the armrest 18 up and down as needed until the desired height is reached.

[0026] Through the above steps, the automatic lifting function helps users easily get in and out of the wheelchair, reducing reliance on external assistance. The auxiliary wheels 4 and the flexible connecting frame 10 improve the stability and maneuverability of the wheelchair on uneven ground, reducing the risk of tipping over. The adjustable armrests 18 provide better support and can be adjusted in height according to the user's needs to increase comfort. The movable push handle 9 facilitates assistance from others in pushing the wheelchair, especially in emergencies or confined spaces. This solves the problem that traditional wheelchairs usually require assistance to get in and out, which is very inconvenient for users with leg disabilities. For users with limited hand dexterity, operating a traditional wheelchair can be very difficult and prone to tipping over.

Claims

1. A smart electric wheelchair for people with mobility impairments, comprising a seat (1); characterized in that: It also includes a backrest (2), a base (11), an electric push rod (12), a battery pack (13), a fixing block (17), an armrest (18), a buckle plate (19), a pressure plate (20), a connecting groove (22), and a telescopic rod (23); the backrest (2) is connected to the back of the seat (1), the battery pack (13) is installed at the center of the lower end of the seat (1), and two sets of electric push rods (12) for lifting the electric wheelchair are symmetrically installed on both sides of the lower end of the battery pack (13). The piston end of the electric push rod (12) is fixedly connected to the base. (11) A fixing block (17) is vertically installed on the center of both sides of the seat (1). An armrest (18) is installed on the upper end of the fixing block (17). A telescopic rod (23) for raising or lowering the armrest (18) is installed between the armrest (18) and the fixing block (17). A pressure plate (20) is elastically installed on the side surface of the armrest (18). A buckle plate (19) is provided on the surface of the telescopic rod (23) and is fixedly connected to the pressure plate (20). A connecting groove (22) is opened on the surface of the fixing block (17) and is fastened to the buckle plate (19).

2. The intelligent electric wheelchair for people with mobility impairments according to claim 1, characterized in that: A rotary motor (16) is installed at the center of both ends of the battery pack (13), and a rotating shaft (15) is provided at the output end of the rotary motor (16).

3. The intelligent electric wheelchair for people with mobility impairments according to claim 2, characterized in that: A movable wheel (14) is fixedly connected to the outside of the rotating shaft (15), and a connecting block (5) is vertically installed on the surface of the battery pack (13).

4. The intelligent electric wheelchair for people with mobility impairments according to claim 3, characterized in that: The lower end of the connecting block (5) is fixedly connected to the pedal (6), and two sets of connecting rods (8) are installed on the inclined surface of the battery pack (13).

5. A smart electric wheelchair for people with mobility impairments according to claim 4, characterized in that: A connecting rod (8) is fixedly connected to a connecting column (3) at its end. Auxiliary wheels (4) are installed on both sides of the connecting column (3). A drive shaft connected to the connecting column (3) is installed on the inner side of the auxiliary wheel (4).

6. The intelligent electric wheelchair for people with mobility impairments according to claim 1, characterized in that: The armrest (18) is equipped with a control panel (7) at the end away from the backrest (2), and a mounting bracket (21) is installed on the surface of the backrest (2) away from the control panel (7).

7. The intelligent electric wheelchair for people with mobility impairments according to claim 1, characterized in that: Both sides of the fixed frame (21) are equipped with elastic connecting frames (10) that are connected to the battery pack (13), and both sides of the upper end of the fixed frame (21) are equipped with movable push handles (9).

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