Auxiliary anti-pinch device for subway door

Abstract

The invention relates to a subway door auxiliary anti-pinch device, and relates to the field of traffic transportation protection, the subway door auxiliary anti-pinch device comprises two oppositely-pulled door bodies, an anti-pinch device composed of a plurality of clamping plates and a movable plate is arranged in a cavity on the opposite side of each door body, and the movable plate is connected with a driving assembly and controlled by a button on the door body. A roll shaft is arranged at the end of the clamping plate, a material ejecting column is arranged at the end of the movable plate, the driving assembly achieves sliding of the movable plate through a connecting plate, a connecting rod and a driving piece, the driving piece is composed of a magnet, a first electromagnet and a second electromagnet, a positioning column is further used for guiding, the movable plate is matched with the clamping plate through an inclined face, and the roll shaft and the positioning column are sleeved with a linkage belt and provided with a buffering reset assembly. Rubber sealing gaskets are arranged on two sides of the vehicle door body. According to the clamping device, the effects that the clamped person or object can be conveniently pulled out in time, damage to the person and the object is reduced, buffering and noise reduction can be achieved, sealing and vibration reduction can be achieved, and the riding comfort degree is improved are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of subway doors, and in particular to an auxiliary anti-pinch device for subway doors. Background Art

[0002] In urban rail transit, the subway, as an efficient and convenient public transportation tool, undertakes a large number of passenger transport tasks. As the passage for passengers to enter and exit the subway car, the safety of the subway door is of paramount importance, and the door anti-pinch function is one of the key links to ensure passenger safety.

[0003] When the subway arrives at a station, the doors of the subway train and the subway platform open in turn, and citizens can get off the train from the platform. During the actual ride, some passengers ignore their own safety and force their way into the subway when the doors are about to close, or due to the crowded carriage, they may be squeezed out of the carriage at the moment the doors close, causing people or objects to be easily trapped by the subway doors.

[0004] Furthermore, existing anti-pinch technology often lacks an effective linkage mechanism to quickly resolve the situation after a person or object is trapped by a door. This can result in passengers being trapped for extended periods of time, increasing the risk of injury or damage to their belongings. Therefore, designing an anti-pinch door that can release a person or object while ensuring safe subway operation is an urgent issue. Summary of the Invention

[0005] In order to be able to remove stuck people or objects from subway doors in a timely manner without affecting the safety precautions of subway doors, the present application provides an auxiliary anti-pinch device for subway doors.

[0006] The present application provides an auxiliary anti-pinch device for subway doors adopts the following technical solution:

[0007] An auxiliary anti-pinch device for subway doors includes two opposing door bodies, a cavity is opened on one side of the door body, the cavity extends into the door body, and an anti-pinch device is arranged in the cavity; the anti-pinch device includes multiple clamping plates and movable plates, the clamping plates are vertically distributed along the direction of the door body, slots are formed between adjacent clamping plates, and the movable plates are inserted into the gaps between the clamping plates so that the movable plates and the clamping plates are alternately distributed, and a driving component for driving the movable plate to slide is connected to the movable plate, a button is provided on the door body, and the driving component is controlled by the button, and the button is used to control the driving component to pull the movable plate to slide into the cavity, leaving space for the clamping plate to move.

[0008] By adopting the above technical solution, when the user uses it, when a person or an object is clamped by the car door body, the user presses the button, and the button controls the driving component to pull the movable plate to slide into the cavity. If the position where the person or object is clamped corresponds to the movable plate, the movable plate can be pulled out when it slides into the cavity. When the stuck person or object corresponds to the position of the clamping plate, when the movable plate slides into the cavity, it leaves space for the clamping plate to move. During the process of pulling outward, the clamping plate is automatically pushed to slide vertically, which makes it easier to pull people or objects out, making it easier to pull people or objects out in time.

[0009] Optionally, the end of the clamping plate is rotatably connected to a roller, and the end of the movable plate is also provided with a lifting column concentric with the roller. The roller and the lifting column are protruding from the side of the door body, and the roller and the lifting column are both made of rubber material.

[0010] By adopting the above technical solution, when the user is using the car, when the car door body is closed, the rollers on both sides abut against each other, and the lifting columns on both sides abut against each other, and the rubber material can play a role in buffering and noise reduction. When the rollers or the lifting columns clamp people or objects, they can reduce the impact force on people or objects and reduce damage to people and objects.

[0011] Optionally, the driving assembly includes a connecting plate, which connects and fixes all the movable plates. The connecting plate is hinged with a connecting rod near both ends. A rotating shaft is fixedly connected to the vehicle door body. The middle part of the connecting rod is hinged on the rotating shaft. A driving member is provided at the end of the connecting rod away from the connecting plate to pull the connecting rod to rotate around the rotating shaft, and the driving member is controlled by a button.

[0012] By adopting the above technical solution, when the user uses it, he presses the button to control the driving member to pull the connecting rod to slide. When the driving member drives the end of the connecting rod to slide toward the outside of the door body, the connecting rod is pushed to pull the movable plate to slide into the door body, and then drives the movable plate to slide, making it easier to remove the clamped person or object; when the driving member drives the end of the connecting rod to slide toward the inside of the door body, the connecting rod is pushed to pull the movable plate to slide toward the outside of the door body, pushing the movable plate to reset.

[0013] Optionally, the driving member includes a magnet fixedly connected to the end of the connecting rod, and electromagnet 1 and electromagnet 2 are fixedly connected to the door body, and electromagnet 1 and electromagnet 2 are respectively located on both sides of the magnet. Pressing the button controls electromagnet 1 to be energized and electromagnet 2 to be de-energized. Pressing the button again controls electromagnet 1 to be de-energized and electromagnet 2 to be energized.

[0014] By adopting the above technical solution, when a person or an object is clamped by the car door, the user presses button one to control electromagnet one to be energized, electromagnet two to be de-energized, and electromagnet one to attract the magnet, causing the magnet to move to one side of electromagnet one and be adsorbed on electromagnet one, while driving the end of the connecting rod to slide toward the outside of the car door body, pushing the connecting rod to pull the movable plate to slide into the car door body, and then driving the movable plate to slide into the car door body. After the person or object is removed, the button is pressed again to control electromagnet one to be de-energized, electromagnet two to be energized, and electromagnet two to attract the magnet, causing the magnet to move in the direction of electromagnet two and be adsorbed on electromagnet two, driving the end of the connecting rod to slide toward the inside of the car door body, pushing the connecting rod to pull the movable plate to slide outside the car door body, and pushing the movable plate to reset.

[0015] Optionally, a positioning column is fixedly connected to the vehicle door body, the positioning column is vertically arranged, the clamping plate passes through the positioning column, and a clearance groove is opened on the movable plate, and the positioning column passes through the clearance groove.

[0016] By adopting the above technical solution, when the user uses it, the positioning column guides the clamping plate, which facilitates the vertical sliding of the clamping plate when subjected to external force, and also facilitates the resetting of the clamping plate. The cooperation between the positioning column and the give way groove guides and limits the movable plate, which facilitates the sliding and resetting of the movable plate.

[0017] Optionally, the movable plate is provided with sliding inclined surfaces on both sides close to the clamping plate, so that the movable plate is arranged in a trapezoidal shape, and the clamping plate is provided with guiding inclined surfaces on both sides corresponding to the movable plate, so that the clamping plate is arranged in a trapezoidal shape, and the guiding inclined surfaces and the sliding inclined surfaces are abutted and matched.

[0018] By adopting the above technical solution, when the user uses it, the guiding inclined surface and the sliding inclined surface abut against each other, playing the role of guiding and limiting. On the one hand, it makes the movable plate and the clamping plate abut more tightly, and on the other hand, it is convenient for the movable plate to slide into the car door body, and at the same time, it is convenient for the sliding plate to slide back into the slot.

[0019] Optionally, a linkage belt is provided on the outside of the roller and the positioning column, a notch groove is opened in the clamping plate, the linkage belt is wrapped around the outside of the roller and the positioning column, and both sides of the linkage belt extend into the clamping plate and are connected to a buffer reset component that enables the linkage belt to slide as the roller rotates.

[0020] By adopting the above technical solution, when the user uses it, when the stuck item is a thin item such as hair or a book, the clamped item can be pulled outward, and the friction between the item and the connecting belt drives the roller to rotate. The rotation of the roller can slide the clamped item outward, that is, there is no need for the clamping plate and the movable plate to move, and the item can be taken out.

[0021] Optionally, the buffer reset assembly includes multiple positioning bars fixedly connected to both sides of the linkage belt, the positioning bars extend into the notch groove, and multiple reset springs are fixedly connected to the positioning bars. The reset springs are horizontally arranged, and the end of the reset spring away from the positioning bar is fixedly connected to the inner wall of the notch groove.

[0022] By adopting the above technical solution, when the user uses it, he pulls the stuck object outward, and the friction between the object and the linkage belt drives the linkage belt to rotate, and the return spring on one side of the linkage belt is stretched. When the object is taken out, the tension of the return spring facilitates the restoration of the linkage belt.

[0023] Optionally, rubber sealing pads are provided on both sides of the door body of the linkage belt.

[0024] By adopting the above technical solution, when used by users, the rubber pad can effectively absorb the vibration and impact generated when the train enters and exits the station. It can also seal the joints of the doors, reducing the noise generated during the train operation from being transmitted into the train, reducing the impact on passengers, and improving riding comfort.

[0025] In summary, this application includes at least one of the following beneficial technical effects: When the person or article is clamped by the door body, the button is pressed, and the button controls the driving assembly to pull the movable plate to slide in the cavity, so that the clamped person or article can be pulled out. When the person or article is clamped, the button is pressed, and the button controls the driving assembly to pull the movable plate to slide in the cavity. If the position of the person or article corresponds to the movable plate, the movable plate slides in the cavity, and the clamped person or article can be pulled out. When the person or article corresponds to the position of the clamping plate, the movable plate slides in the cavity, leaving the clamping plate with a movable space. During the outward pulling process, the clamping plate is automatically pushed to slide vertically, thereby facilitating the pulling out of the person or article, so that the person or article can be pulled out in time. 2. A linkage belt is jointly sleeved on the outside of the roller shaft and the positioning shaft, a notch groove is opened in the clamping plate, the linkage belt is covered on the outside of the roller shaft and the positioning column, and multiple positioning strips on both sides of the linkage belt extend into the notch groove. Multiple return springs are fixedly connected to the positioning strips, and the return springs are horizontally arranged. One end of the return spring away from the positioning strip is fixedly connected to the inner wall of the notch groove. When the stuck object is a small object such as hair or a book, the clamped object can be pulled outward, and the friction between the object and the linkage belt drives the roller shaft to rotate. The rotation of the roller shaft can slide the clamped object outward, that is, the clamping plate and the movable plate do not need to perform the action, and the object can be taken out. The friction between the object and the linkage belt drives the linkage belt to rotate, and the return spring on one side of the linkage belt is stretched. When the object is taken out, the tension of the return spring facilitates the resetting of the linkage belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of this application; Figure 2 It is a schematic diagram of the structure of the door body and the anti-pinch device; Figure 3 It is a cross-sectional view of the door body; Figure 4 This is an exploded view of the door body.

[0027] Explanation of the accompanying reference numerals: 1. Door body; 11. Cavity; 12. Rubber sealing gasket; 2. Anti-pinch device; 21. Clamping plate; 211. Slot; 212. Guide slope; 213. Roller; 214. Notch groove; 215. Fixed plate; 2151. Through hole; 22. Movable plate; 221. Give way groove; 222. Sliding slope; 223. Ejecting column; 224. Linking belt; 23. Positioning column; 24. Driving assembly; 241. Connecting plate; 242. Connecting rod; 243. Rotating shaft; 244. Driving part; 2441. Magnet; 2442. Electromagnet 1; 2443. Electromagnet 2; 25. Button; 26 Linking belt; 261. Positioning strip; 262. Return spring. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 This application is described in further detail.

[0029] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0031] The present application discloses an auxiliary anti-pinch device for subway doors, referring to Figure 1 , including two opposing door bodies 1, with cavities 11 extending into the door body 1 being opened on opposite sides thereof, and an anti-pinch device 2 being arranged in the cavity 11. The cooperation between the anti-pinch device 2 and the door body 1 can achieve the effect of quickly dealing with the situation when people or objects are clamped by the door. The anti-pinch device 2 can release the clamped person or object, avoiding long-term clamping and reducing the risk of passenger injury or damage to objects.

[0032] Specifically, the anti-pinch device 2 includes a plurality of clamping plates 21 and movable plates 22. The clamping plates 21 are vertically distributed along the direction of the vehicle door body 1. Slots 211 are formed between adjacent clamping plates 21. The movable plates 22 are inserted into the slots 211 formed by the clamping plates 21, so that the movable plates 22 and the clamping plates 21 are distributed alternately. The clamping plates 21 are usually made of high-strength metal materials, such as stainless steel. This material is strong and durable and can withstand large external forces. Of course, carbon fiber composite materials can also be used, which have the characteristics of light weight and high strength. The movable plate 22 is generally made of plastic material, such as polycarbonate, which has good toughness and wear resistance. It can also be made of aluminum alloy, which is light and corrosion-resistant.

[0033] A positioning post 23 is fixedly attached to the door body 1. This post 23 is generally cylindrical and made of a metal material, such as carbon steel. The post 23 is vertically positioned, with the clamping plate 21 extending through it. The movable plate 22 is provided with a clearance groove 221 through which the post 23 passes. The post 23 guides the clamping plate 21, facilitating its vertical sliding when subjected to external forces. It also facilitates the repositioning of the clamping plate 21. The coordination between the post 23 and the clearance groove 221 guides and limits the movable plate 22, facilitating its sliding and repositioning.

[0034] Specifically, the movable plate 22 has inclined sliding surfaces 222 on both sides thereof near the clamping plate 21, giving the movable plate 22 a trapezoidal configuration. The clamping plate 21 has inclined guide surfaces 212 on both sides thereof corresponding to the movable plate 22, giving the clamping plate 21 a trapezoidal configuration. The inclined guide surfaces 212 and inclined sliding surfaces 222 abut against each other. This configuration serves as a guide and position limiter. On the one hand, it allows the movable plate 22 to abut more tightly against the clamping plate 21. On the other hand, it facilitates the sliding of the movable plate 22 into the door body 1 and facilitates the sliding return of the movable plate 22 into the slot 211.

[0035] The movable plate 22 is connected to a drive assembly 24 that drives the movable plate 22 to slide. The drive assembly 24 includes a connecting plate 241, which is generally made of high-strength steel. The connecting plate 241 connects and secures all the movable plates 22, and can be bolted together to ensure a secure connection. Connecting rods 242 are hinged near both ends of the connecting plate 241. A rotating shaft 243 is fixedly connected to the vehicle door body 1. The middle portion of the connecting rod 242 is hinged to the rotating shaft 243. A driving member 244 is provided at the end of the connecting rod 242 away from the connecting plate 241, which pulls the connecting rod 242 to rotate about the rotating shaft 243. The control driving member 244 pulls the connecting rod 242 to slide. When the driving member 244 drives the end of the connecting rod 242 to slide toward the outside of the vehicle door body 1, the pushing connecting rod 242 pulls the movable plate 22 to slide toward the inside of the vehicle door body 1, and then drives the movable plate 22 to slide, making it easier to remove the clamped person or object; when the driving member 244 drives the end of the connecting rod 242 to slide toward the inside of the vehicle door body 1, the pushing connecting rod 242 pulls the movable plate 22 to slide toward the outside of the vehicle door body 1, and pushes the movable plate 22 to reset.

[0036] Specifically, the driving member 244 includes a magnet 2441 fixedly connected to the end of the connecting rod 242. The door body 1 is fixedly connected to an electromagnet 1 2442 and an electromagnet 2 2443. Electromagnet 1 2442 and electromagnet 2 2443 are respectively located on either side of the magnet 2441. A button 25 is provided on the door body 1. Electromagnet 1 2442 and electromagnet 2 2443 are controlled by the button 25. The button 25 can be a push-button 25 or a touch-button 25 to facilitate passenger operation. The electromagnet 2441 can use a silicon steel sheet as the iron core to improve the electromagnetic conversion efficiency. Pressing the button 25 controls the electromagnet 1 2442 to be energized and the electromagnet 2 2443 to be de-energized. Pressing the button 25 again controls the electromagnet 1 2442 to be de-energized and the electromagnet 2 2443 to be energized. When a person or an object is caught by the door, the button 25 is pressed to control the electromagnet 1 2442 to be energized and the electromagnet 2 2443 to be deenergized. The electromagnet 1 2442 attracts the magnet 2441, causing the magnet 2441 to move toward the side of the electromagnet 1 2442 and be attracted to the electromagnet 1 2442. At the same time, the end of the connecting rod 242 is driven to slide toward the outside of the door body 1, pushing the connecting rod 242 to pull the movable plate 22 to slide toward the inside of the door body 1, thereby driving the movable plate 22 toward the door body 1. After the person or object is removed, the button 25 is pressed again to cut off the power to the control electromagnet 1 2442 and turn on the power to the electromagnet 2 2443. The electromagnet 2 2443 attracts the magnet 2441, and the magnet 2441 moves toward the direction of the electromagnet 2 2443 and is attracted to the electromagnet 2 2443, driving the end of the connecting rod 242 to slide toward the inside of the door body 1. After that, the connecting rod 242 is pushed to pull the movable plate 22 to slide outward of the door body 1, pushing the movable plate 22 to reset.

[0037] Reference Figure 3 and Figure 4 Specifically, a roller shaft 213 is rotatably connected to the end of the clamping plate 21. A notch 214 is defined within the clamping plate 21, facing the side opposite the vehicle door body 1. A fixing plate 215 is fixedly connected within the notch 214. The fixing plate 215 has a through-hole 2151 defined therein. The through-hole 2151 is configured to allow the roller shaft 213 to pass through, thereby rotatably connecting the roller shaft 213 to the clamping plate 21 and ensuring smooth rotation. A lifting post 223 is also provided at the end of the movable plate 22, concentric with the roller shaft 213. The roller shaft 213 and the lifting post 223 protrude from the side of the vehicle door body 1 and are both made of a rubber material, such as natural rubber, which has excellent elasticity and cushioning properties. Alternatively, nitrile rubber, which is oil-resistant and wear-resistant, may be used. When the door body 1 is closed, the rollers 213 on both sides abut against each other, and the lifting columns 223 on both sides abut against each other. The rubber material can play a role in buffering and noise reduction. When the rollers 213 or the lifting columns 223 clamp people or objects, they can reduce the impact force on people or objects, and reduce the chance of passenger injury or object damage.

[0038] Specifically, the roller 213 and the ejector post 223 are both sheathed with a linkage belt 224. The linkage belt 224 can be a rubber belt or a synchronous belt, exhibiting excellent flexibility and transmission performance. A notched slot 214 is defined within the clamping plate 21, and the linkage belt 224 wraps around the roller 213 and the positioning post 23. Both sides of the linkage belt 224 extend into the clamping plate 21 and are connected to a buffer reset assembly that allows the linkage belt 224 to slide as the roller 213 rotates. When the stuck item is a thin object such as hair or a book, the clamped item can be pulled outward. The friction between the item and the linkage belt 224 drives the roller 213 to rotate, which in turn causes the clamped item to slide outward. This allows the item to be removed without the need for the clamping plate 21 and the movable plate 22 to operate.

[0039] Specifically, the buffer reset assembly includes multiple positioning bars fixedly connected to both sides of the linkage belt 224. The positioning bars are generally made of plastic, such as polypropylene, and have a certain degree of flexibility. The positioning bars extend into the notched slot 214 and are fixedly connected to multiple return springs. The return springs are arranged horizontally, and the ends of the return springs away from the positioning bars are fixedly connected to the inner wall of the notched slot 214. When the stuck object is pulled outward, the friction between the object and the linkage belt 224 drives the linkage belt 224 to rotate, stretching the return springs on one side of the linkage belt 224. When the object is removed, the tension of the return springs facilitates the return of the linkage belt 224.

[0040] Specifically, the door body 1 is provided with rubber gaskets 12 on both sides of the linkage belt 224. These gaskets can be made of EPDM, which offers excellent aging resistance and sealing properties. These gaskets effectively absorb vibration and impact generated when the train enters and exits the station. They also seal the door joints, reducing noise generated during operation from being transmitted into the train, minimizing the impact on passengers and improving ride comfort.

[0041] The implementation principle of this embodiment is as follows: the subway door auxiliary anti-pinch device is provided with a movable clamping plate 21 and a movable plate 22. When the door clamps people or objects, the button 25 can be used to control the driving assembly 24 to slide the movable plate 22, thereby releasing the clamped person or object. The rubber material of the roller 213 and the ejector column 223 reduces the impact force on the clamped object. The positioning column 23 and the clearance groove 221 ensure that the movable plate 22 and the clamping plate 21 slide and reset smoothly. The cooperation of the guide slope 212 and the sliding slope 222 makes the two abut tightly and easy to slide. The connecting belt 224 and the buffer reset assembly can more conveniently remove thin items, and the rubber sealing pad 12 improves riding comfort. Compared with the existing technology, this device can quickly and effectively deal with the situation where people or objects are clamped by the door, reducing the risk of passenger injury and object damage, while ensuring the safe operation of the subway.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A subway door auxiliary anti-pinch device, characterized by: The invention comprises two door bodies (1) pulled opposite to each other, a cavity (11) is provided on one side of the door body (1), the cavity (11) extends into the door body (1), and an anti-pinch device (2) is provided in the cavity (11); the anti-pinch device (2) comprises a plurality of clamping plates (21) and a movable plate (22), the clamping plates (21) are vertically distributed along the direction of the door body (1), slots (211) are formed between adjacent clamping plates (21), and the movable plate (22) is plugged into the clamping plates (21). The movable plate (22) and the clamping plate (21) are alternately distributed in the gap between the clamping plates (21). The movable plate (22) is connected to a driving assembly (24) for driving the movable plate (22) to slide. A button (25) is provided on the door body (1). The driving assembly (24) is controlled by the button (25). The button (25) is used to control the driving assembly (24) to pull the movable plate (22) to slide into the cavity (11), leaving space for the clamping plate (21) to move.

2. The subway door auxiliary anti-pinch device according to claim 1, characterized in that: The end of the clamping plate (21) is rotatably connected to a roller shaft (213), and the end of the movable plate (22) is also provided with a push-up column (223) concentric with the roller shaft (213). The roller shaft (213) and the push-up column (223) are arranged to protrude from the side of the vehicle door body (1), and the roller shaft (213) and the push-up column (223) are both made of rubber material.

3. The subway door auxiliary anti-pinch device according to claim 1, characterized in that: The driving assembly (24) includes a connecting plate (241), which connects and fixes all the movable plates (22). The connecting plate (241) is hinged with a connecting rod (242) near both ends. A rotating shaft (243) is fixedly connected to the door body (1). The middle part of the connecting rod (242) is hinged to the rotating shaft (243). A driving member (244) is provided at one end of the connecting rod (242) away from the connecting plate (241) for pulling the connecting rod (242) to rotate around the rotating shaft (243). The driving member (244) is controlled by a button (25).

4. The subway door auxiliary anti-pinch device according to claim 3, characterized in that: The driving member (244) includes a magnet (2441) fixedly connected to the end of the connecting rod (242). An electromagnet 1 (2442) and an electromagnet 2 (2443) are fixedly connected to the door body (1). The electromagnet 1 (2442) and the electromagnet 2 (2443) are respectively located on both sides of the magnet (2441). When the button (25) is pressed, the electromagnet 1 (2442) is energized and the electromagnet 2 (2443) is de-energized. When the button (25) is pressed again, the electromagnet 1 (2442) is de-energized and the electromagnet 2 (2443) is energized.

5. The subway door auxiliary anti-pinch device according to claim 1, characterized in that: A positioning column (23) is fixedly connected to the door body (1), the positioning column (23) is vertically arranged, the clamping plate (21) passes through the positioning column (23), and a clearance groove (221) is provided on the movable plate (22), and the positioning column (23) passes through the clearance groove (221).

6. The subway door auxiliary anti-pinch device according to claim 1, characterized in that: The movable plate (22) is provided with sliding inclined surfaces (222) on both sides close to the clamping plate (21), so that the movable plate (22) is arranged in a trapezoidal shape. The clamping plate (21) is provided with guiding inclined surfaces (212) on both sides corresponding to the movable plate (22), so that the clamping plate (21) is arranged in a trapezoidal shape. The guiding inclined surfaces (212) and the sliding inclined surfaces (222) are in abutment with each other.

7. The subway door auxiliary anti-pinch device according to claim 1, characterized in that: The roller (213) and the ejecting column (223) are both covered with a linking belt (224); a notch groove (214) is provided in the clamping plate (21); the linking belt (224) is covered with the roller (213) and the positioning column (23); both sides of the linking belt (224) extend into the clamping plate (21) and are connected to a buffer reset assembly that enables the linking belt (224) to slide along with the rotation of the roller (213).

8. The subway door auxiliary anti-pinch device according to claim 7, characterized in that: The buffer reset assembly includes a plurality of positioning bars fixedly connected to both sides of the linkage belt (224), the positioning bars extending into the notch groove (214), a plurality of reset springs fixedly connected to the positioning bars, the reset springs being arranged horizontally, and one end of the reset spring away from the positioning bar being fixedly connected to the inner wall of the notch groove (214).

9. The subway door auxiliary anti-pinch device according to claim 1, characterized in that: The vehicle door body (1) is provided with rubber sealing pads (12) on both sides of the linkage belt (224).

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