An electrically driven guide plate control system for use by a wheelchair user

Abstract

The utility model relates to the field of wheelchair auxiliary device, concretely relates to a kind of electric drive guide plate control system for wheelchair user, including electric drive guide plate controller, electric drive guide plate controller electrically connected vehicle-mounted 24V power supply, electric drive guide plate controller electrically connected with vehicle body controller, vehicle body controller is connected with display unit by CAN communication, the electric drive guide plate controller electrically connected with drive and transmission mechanism, electric drive guide plate is installed on the drive and transmission mechanism by mechanical executing mechanism, the electric drive guide plate controller electrically connected with induction warning component and wheelchair control component, the utility model has the beneficial effect that: the linkage control and safe operation of electric drive guide plate can be well realized, without the assistance of bus driver to open manually overturn guide plate, save time and effort, improve bus operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair assistive devices, specifically to an electric drive guide plate control system for wheelchair users. Background Technology

[0002] A manual wheelchair ramp (also known as a wheelchair ramp or barrier-free ramp) is a manually deployable metal or composite material ramp installed at the rear or middle door of a bus to help passengers using manual wheelchairs get on and off the bus safely and conveniently.

[0003] Currently, low-floor city buses mostly use manual wheelchair ramps at the middle doors. When wheelchair users get on and off the bus, the driver needs to manually open the ramp. This consumes the driver's energy and is not conducive to the bus's operating efficiency.

[0004] Therefore, it is necessary to invent an electrically driven guide plate control system for wheelchair users. Utility Model Content

[0005] Therefore, this utility model provides an electrically driven guide plate control system for wheelchair users to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric drive guide plate control system for wheelchair users, comprising an electric drive guide plate controller, the electric drive guide plate controller being electrically connected to a vehicle 24V power supply, the electric drive guide plate controller being electrically connected to a vehicle body controller, the vehicle body controller being connected to a display unit via CAN communication, the electric drive guide plate controller being electrically connected to a drive and transmission mechanism, the electric drive guide plate being mounted on the drive and transmission mechanism via a mechanical actuator, and the electric drive guide plate controller being electrically connected to a sensing warning component and a wheelchair control component.

[0007] Preferably, the sensing warning component includes a guide plate extension sensor, a guide plate retraction sensor, and a pressure sensor, all of which are electrically connected to an electrically driven guide plate controller.

[0008] Preferably, the sensing warning component further includes a buzzer, and the electrically driven guide plate controller is electrically connected to the buzzer.

[0009] Preferably, the wheelchair control component includes a wheelchair boarding / alighting button, which is electrically connected to an electric drive guide plate controller.

[0010] Preferably, the electric drive guide plate controller is connected via CAN communication to a button to enable the wheelchair ramp and a wheelchair ramp extension button, both of which are connected via CAN communication to a display unit.

[0011] Preferably, the drive and transmission mechanism includes a 24V DC motor 2, a worm gear reducer and a lead screw pusher mechanism. The electric drive guide plate controller is electrically connected to the 24V DC motor. The output shaft of the 24V DC motor is fixedly connected to the input shaft of the worm gear reducer, and the output shaft of the worm gear reducer is fixedly connected to the lead screw pusher mechanism.

[0012] Preferably, the mechanical actuator includes a scissor-connected structure and a load-bearing slide rail and guide rail. The load-bearing slide rail and guide rail are fixed to the lead screw push rod mechanism through the scissor-connected structure, and the electric drive guide plate is fixedly installed on the load-bearing slide rail and guide rail.

[0013] Preferably, the surface of the electrically driven guide plate is provided with anti-slip teeth or an anti-slip coating.

[0014] The beneficial effects of this utility model are: by using the electric drive guide plate controller, body controller, display unit, drive and transmission mechanism, mechanical actuator, sensing warning component and wheelchair control component in combination, the linkage control and safe operation of the electric drive guide plate can be well realized. There is no need for the bus driver to manually open and flip the guide plate, which saves time and effort and improves the efficiency of bus operation. Attached Figure Description

[0015] Figure 1 The control system diagram provided by this utility model;

[0016] Figure 2 A partial structural diagram of the system provided by this utility model.

[0017] In the diagram: 1. Electric drive guide plate controller; 2. 24V DC motor; 3. Guide plate extension sensor; 4. Guide plate retraction sensor; 5. Pressure sensor; 6. Vehicle body controller; 7. Buzzer; 8. Wheelchair loading / unloading button; 9. Display unit; 10. Button to enable wheelchair loading ramp; 11. Wheelchair loading ramp extension button; 13. Worm gear reducer; 14. Lead screw push rod mechanism; 15. Scissor connection structure; 16. Load-bearing slide rail and guide rail; 17. Electric drive guide plate. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] Please refer to the appendix. Figures 1-2 The present invention provides an electric drive guide plate control system for wheelchair users, including an electric drive guide plate controller 1, which is electrically connected to a vehicle 24V power supply, and is electrically connected to a vehicle body controller 6. The vehicle body controller 6 is connected to a display unit 9 via CAN communication, and is electrically connected to a drive and transmission mechanism. An electric drive guide plate 17 is mounted on the drive and transmission mechanism via a mechanical actuator. The electric drive guide plate controller 1 is electrically connected to a sensing warning component and a wheelchair control component.

[0020] The sensing warning assembly includes a guide plate extension sensor 3, a guide plate retraction sensor 4, and a pressure sensor 5. The guide plate extension sensor 3, the guide plate retraction sensor 4, and the pressure sensor 5 are all electrically connected to the electrically driven guide plate controller 1. The sensing warning assembly also includes a buzzer 7, and the electrically driven guide plate controller 1 is electrically connected to the buzzer 7.

[0021] The wheelchair control component includes a wheelchair loading / unloading button 8, which is electrically connected to an electric drive guide plate controller 1. The electric drive guide plate controller 1 is connected via CAN communication to a wheelchair ramp start button 10 and a wheelchair ramp extension button 11. Both the wheelchair ramp start button 10 and the wheelchair ramp extension button 11 are connected via CAN communication to a display unit 9.

[0022] The drive and transmission mechanism includes a 24V DC motor 2, a worm gear reducer 13 and a lead screw pusher mechanism 14. The electric drive guide plate controller 1 is electrically connected to the 24V DC motor 2. The output shaft of the 24V DC motor 2 is fixedly connected to the input shaft of the worm gear reducer 13. The output shaft of the worm gear reducer 13 is fixedly connected to the lead screw pusher mechanism 14.

[0023] The mechanical actuator includes a scissor connection structure 15 and a load-bearing slide rail and guide rail 16. The load-bearing slide rail and guide rail 16 are fixed on the screw push rod mechanism 14 through the scissor connection structure 15. The electric drive guide plate 17 is fixedly installed on the load-bearing slide rail and guide rail 16. The surface of the electric drive guide plate 17 is provided with anti-slip teeth or anti-slip coating.

[0024] Specifically, its mechanical transmission working steps are as follows:

[0025] S1. The forward and reverse rotation of the 24V DC motor 2 is achieved through the electric drive guide plate controller 1;

[0026] S2, 24V DC motor 2 is connected to worm gear reducer 13. Worm gear reducer 13 can convert the high speed and low torque of 24V DC motor 2 into low speed and high torque. It also has a reverse self-locking function. 24V DC motor 2 can be stopped at will after power failure.

[0027] S3, the worm gear reducer 13 connects to the lead screw push rod mechanism 14 to move, converting rotary motion into precise linear motion;

[0028] S4, the lead screw pusher mechanism 14 is connected to the scissor connection structure 15, and the linear displacement of the lead screw pusher mechanism 14 is amplified.

[0029] S5, the scissor-type connection structure 15 connects the load-bearing block and the guide rail 16 to ensure that the electric drive guide plate 17 moves smoothly under heavy load;

[0030] S6. The load-bearing block is connected to the guide rail 16 via an electrically driven guide plate 17. The surface of the electrically driven guide plate 17 directly supports the wheelchair, and with the action of anti-slip teeth or anti-slip coating, it can effectively increase the friction between the wheelchair and the wheelchair tires to ensure the anti-slip effect of the wheelchair.

[0031] Through the above connections, the electric drive guide plate 17 is driven and transmitted, thereby realizing the horizontal extension and vertical descent of the electric drive guide plate 17.

[0032] The method of using this utility model includes the following steps:

[0033] P1, the electric drive guide plate controller 1 receives the signal request from the wheelchair loading and unloading button 8, and the system sends the request indicator light signal on the instrument through the display unit 9;

[0034] P2, the electric drive guide plate controller 1 monitors the vehicle's safety status in real time via the CAN network, including when the door is open, the vehicle speed signal is zero, the handbrake signal is ON, and the vehicle is in a braking state.

[0035] P3. If the safety conditions are met, the driver first presses the wheelchair ramp start button 10, then presses the wheelchair ramp extension button 11. At this time, the 24V DC motor 2 drives the electric drive guide plate 17 to extend. During the movement, the buzzer 7 emits a warning sound to remind the passenger. The guide plate extension sensor 3 monitors the travel of the electric drive guide plate 17. If it encounters an obstacle, the electric drive guide plate 17 stops working. The pressure sensor 5 detects heavy objects. If a heavy object exceeding 15KG is pressed on the surface of the electric drive guide plate 17, the guide plate stops working. If everything is normal, the electric drive guide plate 17 extends to the preset position.

[0036] P4. During the process of pedestrians getting on and off the vehicle, the electric drive guide plate controller 1 outputs the guide plate motion signal to the body controller 6. The body controller 6 receives the guide plate extension status, thereby controlling the vehicle to stop driving and preventing the doors from closing, thus playing a safety protection role.

[0037] P5. After boarding and alighting are completed, the driver monitors the screen on display unit 9 and confirms that there are no passengers in the door area. Then, the driver closes the wheelchair boarding ramp extension button 11. The electric drive guide plate controller 1 receives the instruction and controls the electric drive guide plate 17 to retract. The guide plate retraction sensor 4 detects that the electric drive guide plate 17 has retracted to its initial position. The electric drive guide plate controller 1 sends a guide plate movement signal to the vehicle body controller 6. The vehicle body controller 6 releases the prohibition on driving and the prohibition on door closing. The electric drive guide plate indicator light on display unit 9 goes out. At this time, the system operation ends and the vehicle can drive normally.

[0038] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art can modify this utility model or modify it into an equivalent technical solution using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solution of this utility model are within the scope of protection claimed by this utility model.

Claims

1. An electric drive guide plate control system for wheelchair users, comprising an electric drive guide plate controller (1), the electric drive guide plate controller (1) being electrically connected to a vehicle 24V power supply, the electric drive guide plate controller (1) being electrically connected to a vehicle body controller (6), the vehicle body controller (6) being connected to a display unit (9) via CAN communication, characterized in that: The electric drive guide plate controller (1) is electrically connected to a drive and transmission mechanism. An electric drive guide plate (17) is mounted on the drive and transmission mechanism via a mechanical actuator. The electric drive guide plate controller (1) is electrically connected to a sensing warning component and a wheelchair control component.

2. The electrically driven guide plate control system for wheelchair users according to claim 1, characterized in that: The sensing warning assembly includes a guide plate extension sensor (3), a guide plate retraction sensor (4), and a pressure sensor (5). The guide plate extension sensor (3), the guide plate retraction sensor (4), and the pressure sensor (5) are all electrically connected to an electrically driven guide plate controller (1).

3. The electrically driven guide plate control system for wheelchair users according to claim 2, characterized in that: The sensing warning assembly also includes a buzzer (7), and the electrically driven guide plate controller (1) is electrically connected to the buzzer (7).

4. The electrically driven guide plate control system for wheelchair users according to claim 1, characterized in that: The wheelchair control assembly includes a wheelchair boarding / alighting button (8), which is electrically connected to an electric drive guide plate controller (1).

5. The electrically driven guide plate control system for wheelchair users according to claim 4, characterized in that: The electric drive guide plate controller (1) is connected to a wheelchair ramp start button (10) and a wheelchair ramp extension button (11) via CAN communication. Both the wheelchair ramp start button (10) and the wheelchair ramp extension button (11) are connected to the display unit (9) via CAN communication.

6. The electrically driven guide plate control system for wheelchair users according to claim 1, characterized in that: The drive and transmission mechanism includes a 24V DC motor (2), a worm gear reducer (13), and a lead screw pusher mechanism (14). The electric drive guide plate controller (1) is electrically connected to the 24V DC motor (2). The output shaft of the 24V DC motor (2) is fixedly connected to the input shaft of the worm gear reducer (13), and the output shaft of the worm gear reducer (13) is fixedly connected to the lead screw pusher mechanism (14).

7. The electrically driven guide plate control system for wheelchair users according to claim 6, characterized in that: The mechanical actuator includes a scissor connection structure (15) and a load-bearing slide rail and guide rail (16). The load-bearing slide rail and guide rail (16) is fixed on the screw push rod mechanism (14) through the scissor connection structure (15). The electric drive guide plate (17) is fixedly installed on the load-bearing slide rail and guide rail (16).

8. The electrically driven guide plate control system for wheelchair users according to claim 1, characterized in that: The surface of the electrically driven guide plate (17) is provided with anti-slip teeth or an anti-slip coating.

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