Anti-pinch electrically-driven turnover wheelchair guide plate for passenger car

Abstract

The utility model discloses a kind of electric turnover wheelchair guide plates for preventing pinching injury for passenger car, belong to the technical field of barrier-free traffic equipment, including frame, the base plate of fixed connection in frame, and turnover mechanism;Turnover mechanism includes rotatingly installed pivot on base plate, motor is installed on base plate and is transmission connection with pivot, and guiding plate is fixed to pivot by connecting piece, the core of the utility model is, the edge of guiding plate is fixedly connected with as the first rubber strip and second rubber strip of physical buffer;And, infrared sensor that can actively detect obstacle on turnover path is also installed on guiding plate, the design combines physical passive protection with electronic active protection, constitutes double anti-pinch safety system, solve the problem that existing guide plate lacks effective safety measures in turnover process, prone to pinching injury accident.The utility model has the beneficial effects of good safety protection effect, stable and reliable structure, high overall use safety.

Description

Technical Field

[0001] This utility model relates to the field of barrier-free access equipment technology, and in particular to an electric tilting wheelchair guide for buses that prevents pinching injuries. Background Technology

[0002] With increasing societal emphasis on accessible travel, equipping public transportation vehicles such as buses with wheelchair ramps has become an important service facility. Wheelchair ramps, by creating a ramp between the vehicle door and the ground, greatly facilitate wheelchair users getting on and off the vehicle.

[0003] To improve ease of operation and reduce the workload of drivers and passengers, electrically powered, tilting wheelchair ramps have emerged. These ramps, driven by a motor, can automatically unfold and retract. Compared to traditional manual ramps, their automation level and efficiency are significantly improved, making them the mainstream solution in the market.

[0004] However, while electric tilting guides offer convenience, they also introduce new safety hazards. The guides themselves have a certain weight and volume, and their tilting process, driven by a motor, involves a significant mechanical force. If passengers' limbs, personal belongings, or other obstacles are present in the path of the guide during its tilting, unfolding, or retraction, collisions or crushing can easily occur, leading to serious injuries or equipment damage. Utility Model Content

[0005] To address the above shortcomings, this utility model provides an electric tilting wheelchair guide for buses that prevents pinching injuries, aiming to improve the problem of insufficient safety measures to prevent pinching injuries during the tilting process of existing electric wheelchair guides for buses.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An electric tilting wheelchair guide for passenger vehicles to prevent pinching injuries includes: a frame, a base plate fixedly connected to the frame, and a tilting mechanism; the tilting mechanism includes a rotating shaft rotatably mounted on the base plate, a motor mounted on the base plate and drivenly connected to the rotating shaft, and a guide plate fixedly connected to the rotating shaft; and a first rubber strip, a second rubber strip, and an infrared sensor disposed on the guide plate, wherein the first rubber strip and the second rubber strip serve as physical buffer components and are fixedly connected to the edge of the guide plate; The infrared sensor, as an active detection component, is installed on the guide plate, and its detection area covers the flipping path of the guide plate. This combination of physical buffering and active detection constitutes a dual anti-pinch safety system.

[0007] Preferably, the substrate has a positioning hole, and the guide plate is provided with a positioning post that engages with the positioning hole after the guide plate is flipped into position.

[0008] Preferably, the anti-pinch electric tilting wheelchair guide plate for buses further includes a support mechanism, which is installed at the end of the guide plate away from the pivot.

[0009] Preferably, the support mechanism includes a support leg rotatably connected to the guide plate via a connecting shaft, and a storage groove formed on the ground-facing surface of the guide plate for accommodating the support leg.

[0010] Preferably, the support mechanism further includes a first magnetic piece fixed to the support leg and a second magnetic piece fixed in the storage slot.

[0011] Preferably, the first rubber strip and the second rubber strip are respectively fixed to two opposite side edges of the guide plate.

[0012] Preferably, the signal output terminal of the infrared sensor is electrically connected to the control system of the motor.

[0013] Preferably, the axis of the connecting shaft in the support mechanism is parallel to the surface of the guide plate.

[0014] This utility model has the following beneficial effects: 1. In this utility model, by setting a rubber strip that plays a physical buffer role and an infrared sensor for actively detecting obstacles on the guide plate, the problem of the lack of effective safety protection during the electric flipping of wheelchair guide plates in the prior art, which easily causes pinching accidents, is solved. It achieves a dual safety protection effect that combines active prevention and passive buffering, and greatly improves the safety of the device.

[0015] 2. In this utility model, by setting a plug-in structure between the positioning column and the positioning hole, the problem of inaccurate positioning and easy shaking after the guide plate is unfolded is solved, resulting in poor stability. This achieves the technical effect of accurately and firmly locking the guide plate in the working position, ensuring the safety and reliability of the wheelchair getting on and off. Attached Figure Description

[0016] Figure 1 This is a perspective view of an electric tilting wheelchair guide plate for passenger vehicles that prevents pinching injuries, as proposed in this utility model. Figure 2 This is a schematic diagram of the flipping mechanism of an electric flipping wheelchair guide plate for a passenger vehicle that is designed to prevent pinching injuries, as proposed in this utility model. Figure 3 This is a schematic diagram of an infrared sensor for an electric tilting wheelchair guide plate for a passenger vehicle that prevents pinching injuries, as proposed in this utility model. Figure 4 This is a schematic diagram of the support mechanism for an electric tilting wheelchair guide plate for passenger vehicles that prevents pinching injuries, as proposed in this utility model.

[0017] Legend: 1. Frame; 2. Base plate; 3. Tilting mechanism; 301. Motor; 302. Rotating shaft; 303. Connector; 304. Guide plate; 305. First rubber strip; 306. Second rubber strip; 307. Infrared sensor; 4. Positioning post; 5. Positioning hole; 6. Support mechanism; 601. Support leg; 602. Connecting shaft; 603. Storage slot; 604. First magnetic clasp; 605. Second magnetic clasp. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figures 1-4 The present invention provides an embodiment of an electric tilting wheelchair guide for a bus that prevents pinching injuries, comprising a frame 1 and a base plate 2 fixedly connected to the frame 1. The frame 1 serves as the mounting base for connecting the entire device to the bus, and the base plate 2 is used to support the tilting mechanism 3 and constitutes the main bearing surface of the wheelchair guide. The flipping mechanism 3 includes a rotating shaft 302, which is rotatably mounted on the base plate 2. A motor 301 is mounted on the base plate 2, and its output end is connected to the rotating shaft 302 for transmission. The motor 301 provides power to the flipping mechanism 3. A guide plate 304 is fixedly connected to the rotating shaft 302 through a connector 303. Under the drive of the motor 301, the guide plate 304 can flip around the axis of the rotating shaft 302, thereby realizing the unfolding and storage of the guide plate. To achieve the anti-pinch function, a first rubber strip 305 and a second rubber strip 306 are fixedly connected to the two opposite side edges of the guide plate 304, respectively. The first rubber strip 305 and the second rubber strip 306 are elastic buffer structures, which provide physical buffer when the guide plate 304 comes into contact with an obstacle during the flipping process. At the same time, an infrared sensor 307 is also installed on the guide plate 304. The detection area of ​​the infrared sensor 307 covers the flipping path of the guide plate 304. The signal output terminal of the infrared sensor 307 is electrically connected to the control system of the motor 301. When the infrared sensor 307 detects an obstacle in the flipping path, it controls the motor 301 to stop or reverse rotation, thereby achieving active safety protection. The base plate 2 has a positioning hole 5, and the guide plate 304 is provided with a positioning post 4 that engages with the positioning hole 5 after the guide plate 304 is flipped into place. This engagement structure achieves precise positioning and stable locking of the guide plate 304, preventing the guide plate 304 from shaking or shifting during use, thereby ensuring the safety of wheelchairs getting on and off. To further enhance the load-bearing capacity and stability of the guide plate 304 after it is unfolded, the device also includes a support mechanism 6. The support mechanism 6 is installed at the end of the guide plate 304 away from the pivot 302. The support mechanism 6 includes a support leg 601 and a connecting shaft 602. The support leg 601 is rotatably connected to the guide plate 304 through the connecting shaft 602, so that the support leg 601 can rotate to the ground to form support when the guide plate 304 is unfolded, and rotate to be stored when the guide plate 304 is retracted. To ensure the stable fixation of the support leg 601 in the retracted state, the support mechanism 6 also includes a first magnetic 604 and a second magnetic 605. The first magnetic 604 is fixed to the support leg 601, and the second magnetic 605 is fixed in the storage groove 603. When the support leg 601 rotates and retracts into the storage groove 603, the first magnetic 604 and the second magnetic 605 attract each other. To optimize the retraction and deployment of the support leg 601, the storage groove 603 is formed on the ground-facing surface of the guide plate 304, and the axis of the connecting shaft 602 is parallel to the surface of the guide plate 304. To achieve comprehensive lateral protection, the first rubber strip 305 and the second rubber strip 306 are respectively fixed to two opposite side edges of the guide plate 304. To achieve active safety control, the signal output terminal of the infrared sensor 307 is electrically connected to the control system of the motor 301 so as to transmit the detected obstacle signal to the control system in real time.

[0020] Working principle: When the guide plate 304 needs to be unfolded, the motor 301 starts and drives the rotating shaft 302 to rotate. The rotating shaft 302 drives the guide plate 304 to flip downward around its axis through the connector 303. During the entire flipping process, the infrared sensor 307 installed on the guide plate 304 continuously monitors its flipping path. If an obstacle is detected, its signal output terminal sends a signal to the control system of the motor 301 to control the motor 301 to stop or reverse its movement, thereby achieving active anti-pinch protection. At the same time, the first rubber strip 305 and the second rubber strip 306 fixed to the edge of the guide plate 304 can provide elastic buffer in case of accidental contact, playing a passive anti-pinch role. When the guide plate 304 is flipped to the predetermined working position, the positioning post 4 on it will insert into the positioning hole 5 on the base plate 2 to achieve a stable lock on the guide plate 304. At the same time, the support leg 601 of the support mechanism 6 rotates out from the storage groove 603 around the connecting shaft 602 to form auxiliary support for the guide plate 304 and enhance its load-bearing capacity. When the guide plate 304 needs to be retracted, the support leg 601 is first rotated around the connecting shaft 602 and retracted into the storage slot 603. At this time, the first magnetic piece 604 and the second magnetic piece 605 attract each other and fix the support leg 601 in the storage state. Then, the motor 301 rotates in the opposite direction, driving the guide plate 304 to flip upward and return to the initial position. During this retraction process, the infrared sensor 307, the first rubber strip 305, and the second rubber strip 306 also play a double anti-pinch safety protection role.

Claims

1. An electric tilting wheelchair guide for passenger vehicles to prevent pinching injuries, comprising: Frame (1); The base plate (2) is fixedly connected to the vehicle frame (1); The flipping mechanism (3) includes: a rotating shaft (302) which is rotatably mounted on the substrate (2); The motor (301) is mounted on the base plate (2) and its output end is connected to the rotating shaft (302) for transmission. The guide plate (304) is fixedly connected to the rotating shaft (302) by the connector (303). The guide plate (304) can rotate around the axis of the rotating shaft (302) under the drive of the motor (301). The feature is that: a first rubber strip (305) and a second rubber strip (306) are fixedly connected to the edge of the guide plate (304), and an infrared sensor (307) is also installed on the guide plate (304), the detection area of ​​the infrared sensor (307) covers the flipping path of the guide plate (304).

2. The electrically operated roll-over wheelchair ramp for passenger vehicles according to claim 1, characterized in that: The substrate (2) has a positioning hole (5), and the guide plate (304) is provided with a positioning post (4) that is inserted into the positioning hole (5) after the guide plate (304) is flipped into place.

3. The electrically operated roll-over wheelchair ramp for passenger vehicles of claim 1, wherein: It also includes a support mechanism (6), which is installed at the end of the guide plate (304) away from the rotating shaft (302).

4. The electrically operated roll-under wheelchair ramp of claim 3, wherein: The support mechanism (6) includes: a support leg (601), a connecting shaft (602), the support leg (601) being rotatably connected to the guide plate (304) via the connecting shaft (602), and a storage groove (603) formed on the ground-facing surface of the guide plate (304) for storing the support leg (601).

5. The electrically operated roll-under wheelchair ramp of claim 4 wherein: The support mechanism (6) further includes a first magnetic absorbing piece (604) and a second magnetic absorbing piece (605); the first magnetic absorbing piece (604) is fixed on the support leg (601), and the second magnetic absorbing piece (605) is fixed in the storage groove (603).

6. The electrically operated roll-under wheelchair ramp of claim 1, wherein: The first rubber strip (305) and the second rubber strip (306) are respectively fixed to two opposite side edges of the guide plate (304).

7. The electrically operated roll-under wheelchair ramp of claim 1, wherein: The signal output terminal of the infrared sensor (307) is electrically connected to the control system of the motor (301).

8. The electrically operated roll-under wheelchair ramp of claim 4 wherein: The axis of the connecting shaft (602) is parallel to the surface of the guide plate (304).

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