An automatic evacuation device for intercity train emergency evacuation

Abstract

The present application relates to rail transit technical field, disclose a kind of automatic evacuation device for intercity car emergency evacuation, including fixed installation frame, control unit box, horizontal moving mechanism, step component mechanism, horizontal cylinder, apron mechanism, horizontal locking mechanism, ventilation mechanism and device electronic mechanical lock;Horizontal moving mechanism is installed in fixed installation frame, step component mechanism is installed on horizontal moving mechanism, first connecting rod and first follower are connected between fixed step and mid-step, second connecting rod and second follower are connected between mid-step and top step, bottom step is connected with fixed step by connecting plate, convex shaft and claw locking cooperation;Horizontal cylinder drives horizontal moving mounting bracket to move along slide rail, vertical lifting cylinder drives step component mechanism to unfold.The present application can complete the extension, unfolding, locking and recycling of step component mechanism, and support manual operation in the state of no electricity and no gas, improve the use stability of emergency evacuation device.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, specifically to an automatic evacuation device for emergency evacuation of intercity trains. Background Technology

[0002] When intercity EMUs and urban trains encounter vehicle malfunctions, track abnormalities, or other situations requiring emergency evacuation during operation, it is necessary to establish a passageway between the passenger compartment floor and the track surface or evacuation platform. Due to limitations imposed by the location of the side doors, the installation space under the vehicle, and the requirements for normal vehicle operation, emergency evacuation equipment needs to be stored away when not in use and deployed outwards from the storage location in an emergency. To meet the storage needs during normal vehicle operation and the evacuation needs in an emergency, an automatic evacuation device for emergency evacuation of intercity trains needs to be installed at the side door location to provide passage conditions for passengers to transfer from the passenger compartment to the track surface or evacuation platform.

[0003] An existing automatic evacuation device for emergency evacuation of intercity trains is installed near the doors of the trains. When a vehicle malfunctions or an emergency evacuation is required, the operator activates the evacuation device according to the vehicle's operating status, switching it from a non-use state to an use state. This creates an evacuation path for passengers between the doors and the track surface or evacuation platform. Passengers then leave the carriage along this path. After the evacuation is complete, the operator resets and stores the evacuation device, restoring the area near the doors to normal conditions, thus completing the emergency evacuation process.

[0004] While an existing automatic evacuation device for emergency evacuation of intercity vehicles can meet basic evacuation needs, there are still shortcomings in the coordination between storage, removal, deployment, and locking. When there are many manual operation steps, the deployment process is affected by the operator's proficiency, which increases the evacuation preparation time in emergency situations. Changes in the vehicle's power or gas supply conditions can also affect normal use. After the evacuation parts are removed, they need to remain in a stable position. After the steps are deployed, they need to maintain the deployed state. After being retracted, they also need to prevent unexpected movement or deployment. The existing structure still has room for improvement in terms of movement guidance, deployment linkage, mechanical locking, and storage limit. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an automatic evacuation device for emergency evacuation of intercity vehicles, solving the problems of existing emergency evacuation devices for intercity vehicles having a single evacuation method, heavy reliance on manual operation, low degree of automation, lack of backup operation methods in the event of power or gas outages, and insufficient reliability of locking.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic evacuation device for emergency evacuation of intercity vehicles, comprising a fixed mounting frame, a control unit box fixed below the fixed mounting frame, a horizontal moving mechanism housed within the fixed mounting frame, a step assembly mechanism mounted on the horizontal moving mechanism, a horizontal cylinder fixed to the fixed mounting frame, the drive end of the horizontal cylinder connected to the horizontal moving mechanism, a skirt mechanism connected to the fixed mounting frame, a horizontal locking mechanism and an electronic mechanical lock respectively located on both sides of the fixed mounting frame, the horizontal locking mechanism connected to the horizontal moving mechanism, and a ventilation mechanism mounted on the fixed mounting frame;

[0007] The step assembly includes a first connecting rod, which connects the fixed step and the middle step to a first follower rod; a second connecting rod connects the middle step and the top step to a second follower rod; and a connecting plate connects the bottom step and the fixed step.

[0008] Preferably, the horizontal moving mechanism has a fixed step fixedly connected to its horizontal moving mounting frame and a vertical lifting cylinder rotatably connected thereto. The driving end of the vertical lifting cylinder is rotatably connected to the connecting plate, and both ends of the connecting plate are fixedly connected to the first connecting rod. The middle part of the first connecting rod is rotatably connected to the first follower rod. One end of the first connecting rod is rotatably connected to the fixed step, and the other end is slidably connected within the middle step. One end of the first follower rod is slidably connected within the fixed step, and the other end is rotatably connected to the middle step.

[0009] Preferably, one end of the first follower rod that is rotatably connected to the middle step is coaxially rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod is slidably connected within the top step; one end of the first connecting rod that is slidably connected within the middle step is coaxially rotatably connected to one end of the second follower rod, and the other end of the second follower rod is rotatably connected to the top step.

[0010] Preferably, the second follower rod has a convex shaft fixed at one end near the middle step, the convex shaft passes through the middle step and is rotatably connected to the extension plate, the other end of the extension plate is fixed with a slider, one end of the slider is slidably connected inside the middle step, and the other end is slidably connected to one end of the connecting plate; the middle part of the connecting plate is rotatably connected to the fixed step, and the other end is rotatably connected to the bottom step.

[0011] Preferably, a pawl is rotatably connected to the middle step, the pawl is located at the moving path of the convex shaft, and the pawl is locked to the convex shaft.

[0012] Preferably, a follower plate is rotatably connected to the bottom step, the follower plate has a sliding groove, a sliding shaft is fixed on the connecting plate, and the sliding shaft is slidably connected in the sliding groove; a hollow guide post is fixed on the bottom step, a limit post is fixed at the bottom of the fixed step, and the limit post is slidably inserted in the guide post; a limit plate is fixed on the fixed mounting frame, and multiple rollers are rotatably connected to the limit plate.

[0013] Preferably, the horizontal moving mechanism includes a horizontal moving mounting frame, on which two sliding members are fixed and rotatably connected to a vertical lifting cylinder. Each sliding member is rotatably connected to multiple rollers. The fixed mounting frame has two slide rails fixed on it, and the two sliding members are respectively slidably engaged with the two slide rails. The driving end of the horizontal cylinder is connected to the horizontal moving mounting frame.

[0014] Preferably, the horizontal locking mechanism includes a fixed shaft, which is fixedly connected to the horizontal movable mounting frame. The fixed shaft is locked in place with a locking member. A guide block is fixed on the fixed mounting frame. A pull rod is slidably connected inside the guide block. The pull rod is connected to the locking member. A spring is sleeved on the outside of the pull rod. One end of the spring abuts against the pull rod, and the other end abuts against the guide block.

[0015] Preferably, the skirt mechanism includes a skirt, an opening cylinder is installed between the skirt and the fixed mounting frame, the skirt is locked in place with an electromechanical lock, and four corner mechanical locks are installed on the skirt; the device's electromechanical lock is locked in place with the horizontal movement mechanism.

[0016] Preferably, the ventilation mechanism includes a single tube clamp, which is fixed on the fixed mounting frame. A single-position side air tube is installed inside the single tube clamp. One end of the single-position side air tube is connected to the control unit box, and the other end is connected to the device air circuit adapter block. The device air circuit adapter block is connected to the air circuits of the horizontal cylinder, the vertical lifting cylinder, the opening cylinder, and the horizontal locking mechanism, respectively.

[0017] This invention provides an automatic evacuation device for emergency evacuation of intercity vehicles. It has the following beneficial effects:

[0018] 1. In this invention, a horizontal moving mechanism is driven by a horizontal cylinder to move along a fixed installation frame. The step assembly mechanism extends and retracts along with the horizontal moving mechanism. The first connecting rod, the first follower rod, the second connecting rod, and the second follower rod work together to complete the linkage deployment of the fixed step, the middle step, and the top step. The connecting plate drives the bottom step to extend synchronously, which facilitates the formation of a stepped structure for personnel evacuation.

[0019] 2. The present invention uses the locking cooperation between the claw and the convex shaft to form a mechanical lock on the unfolded step assembly mechanism; the horizontal locking mechanism and the device's electromechanical lock respectively lock the horizontal movement mechanism, which can limit the unexpected movement of the step assembly mechanism in the unfolded and retracted states and improve the locking stability of the device.

[0020] 3. This invention utilizes the cooperation of sliding parts and slide rails to guide the horizontally moving mounting frame, and utilizes the cooperation of sliding shafts and slide grooves as well as limiting posts and guide posts to guide the movement of the bottom step. The limiting plate restricts the unfolding of the stacked step assembly within the fixed mounting frame, ensuring the stability of the unfolding and retraction process of the step assembly. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of point B in the middle;

[0023] Figure 3 This is a schematic diagram of the guide post of the present invention;

[0024] Figure 4 This is a schematic diagram of the limiting plate of the present invention;

[0025] Figure 5 This is a schematic diagram of the skirt panel of the present invention;

[0026] Figure 6 This is a schematic diagram of the opening cylinder of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the horizontally movable mounting bracket of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the pull rod of the present invention;

[0029] Figure 9 for Figure 8 Enlarged view of point A in the middle.

[0030] The components include: 1. Control unit box; 2. Fixed mounting frame; 3. Horizontal moving mechanism; 301. Horizontal moving mounting bracket; 302. Sliding component; 303. Vertical lifting cylinder; 304. Slide rail; 4. Step assembly mechanism; 401. Fixed step; 402. First connecting rod; 403. First follower rod; 404. Connecting plate; 405. Middle step; 406. Second connecting rod; 407. Second follower rod; 408. Top step; 409. Connecting plate; 410. Sliding shaft; 411. Bottom step; 412. Slide groove; 413. Follower plate. 414. Convex shaft; 415. Claw; 416. Guide post; 417. Limiting post; 418. Limiting plate; 419. Extension plate; 420. Slider; 5. Horizontal cylinder; 6. Skirt mechanism; 601. Opening cylinder; 602. Skirt; 603. Electromechanical lock; 7. Horizontal locking mechanism; 701. Fixed shaft; 702. Locking element; 703. Guide block; 704. Pull rod; 705. Spring; 8. Ventilation mechanism; 801. Single pipe clamp; 802. First-position side air pipe; 803. Device air circuit adapter block; 9. Device electromechanical lock. Detailed Implementation

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see the appendix Figure 1 Appendix Figure 3 To be continued Figure 7 This invention provides an automatic evacuation device for emergency evacuation of intercity vehicles, including a fixed mounting frame 2, a control unit box 1 fixed below the fixed mounting frame 2, a horizontal moving mechanism 3 housed within the fixed mounting frame 2, a step assembly mechanism 4 mounted on the horizontal moving mechanism 3, a horizontal cylinder 5 fixed on the fixed mounting frame 2, a skirt mechanism 6 connected to the fixed mounting frame 2, a horizontal locking mechanism 7 and an electronic mechanical lock 9 respectively mounted on both sides of the fixed mounting frame 2, the horizontal locking mechanism 7 connecting the fixed mounting frame 2 and the horizontal moving mechanism 3, and a ventilation mechanism 8 mounted on the fixed mounting frame 2; the fixed mounting frame 2 supports the control unit box 1, the horizontal moving mechanism 3, the horizontal cylinder 5, and the ventilation mechanism 8; the horizontal moving mechanism 3 can drive the step assembly mechanism 4 to move between its storage position and the outside of the vehicle body; the horizontal locking mechanism 7 and the electronic mechanical lock 9 restrict the horizontal moving mechanism 3 from moving in the locked state.

[0033] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 7 In a preferred embodiment of the present invention, a fixed step 401 is fixed on the horizontal moving mounting frame 301 of the horizontal moving mechanism 3. A vertical lifting cylinder 303 is rotatably connected to the horizontal moving mounting frame 301. The driving end of the vertical lifting cylinder 303 is rotatably connected to the connecting plate 404. Both ends of the connecting plate 404 are fixedly connected to the first connecting rod 402. The middle part of the first connecting rod 402 is rotatably connected to the first follower rod 403. One end of the first connecting rod 402 is rotatably connected to the fixed step 401, and the other end of the first connecting rod 402 slides... The first follower rod 403 is slidably connected to the fixed step 401 at one end, and the other end of the first follower rod 403 is rotatably connected to the middle step 405. When the vertical lifting cylinder 303 retracts, it drives the connecting plate 404 to move. The connecting plate 404 drives the first connecting rod 402 and the first follower rod 403 to move together, so that the middle step 405 rises relative to the fixed step 401. When the vertical lifting cylinder 303 retracts, the first connecting rod 402 and the first follower rod 403 move in opposite directions, so that the middle step 405 falls.

[0034] Please see the appendix Figure 1 In a preferred embodiment of the present invention, one end of the first follower rod 403, which is rotatably connected to the middle step 405, is coaxially rotatably connected to one end of the second connecting rod 406. The other end of the second connecting rod 406 is slidably connected within the top step 408. One end of the first connecting rod 402, which is slidably connected within the middle step 405, is coaxially rotatably connected to one end of the second follower rod 407. The other end of the second follower rod 407 is rotatably connected to the top step 408. During the ascent of the middle step 405, the second connecting rod 406 and the second follower rod 407 move together. The second connecting rod 406 and the second follower rod 407 together drive the top step 408 to rise, so that the top step 408 unfolds synchronously with the middle step 405. When the middle step 405 descends, the second connecting rod 406 and the second follower rod 407 move in opposite directions and drive the top step 408 to descend synchronously.

[0035] Please see the appendix Figure 1 and attached Figure 2In a preferred embodiment of the present invention, a convex shaft 414 is fixed at one end of the second follower rod 407 near the middle step 405. The convex shaft 414 passes through the middle step 405 and is rotatably connected to the extension plate 419. A slider 420 is fixed at the other end of the extension plate 419. One end of the slider 420 is slidably connected inside the middle step 405, and the other end of the slider 420 is slidably connected to one end of the connecting plate 409. The middle part of the connecting plate 409 is rotatably connected to the fixed step 401, and the other end of the connecting plate 409 is rotatably connected to the bottom step 411. During the process of the middle step 405 rising, the convex shaft 414 and the extension plate 419 move. The extension plate 419 moves the slider 420. The slider 420 drives the connecting plate 409 to rotate around the connection position between the connecting plate 409 and the fixed step 401. The connecting plate 409 drives the bottom step 411 to extend outward, thereby making the bottom step 411 and the middle step 405 linked together.

[0036] Please see the appendix Figure 2 In a preferred embodiment of the present invention, a pawl 415 is rotatably connected to the middle step 405. The pawl 415 is located at the moving path of the convex shaft 414, and the pawl 415 is locked to the convex shaft 414. During the unfolding of the step assembly mechanism 4, the convex shaft 414 gradually moves toward the pawl 415. After the convex shaft 414 contacts the pawl 415, it pushes the pawl 415 to rotate. The convex shaft 414 continues to move and enters the inner side of the pawl 415. The pawl 415 locks the convex shaft 414 and restricts the convex shaft 414 from moving in the opposite direction, so that the fixed step 401, the middle step 405, the top step 408 and the bottom step 411 remain in the unfolded state. When the device is retracted, manually moving the pawl 415 can release the lock between the pawl 415 and the convex shaft 414.

[0037] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 4 In a preferred embodiment of the present invention, a follower plate 413 is rotatably connected to the bottom step 411, and a sliding groove 412 is provided on the follower plate 413. A sliding shaft 410 is fixed on the connecting plate 409 and is slidably connected in the sliding groove 412. A hollow guide post 416 is fixed on the bottom step 411. A limit post 417 is fixed at the bottom of the fixed step 401 and is slidably inserted in the guide post 416. A limit plate 418 is fixed on the fixed mounting frame 2 and multiple rollers are rotatably connected to the limit plate 418. During the extension or retraction of the bottom step 411, the sliding shaft 410 slides along the sliding groove 412, and at the same time, the limit post 417 slides along the guide post 416 to guide the movement of the bottom step 411. After the step assembly mechanism 4 is folded and stored in the fixed mounting frame 2, the rollers on the limit plate 418 contact the step assembly mechanism 4, restricting the step assembly mechanism 4 from unfolding within the fixed mounting frame 2.

[0038] Please see the appendix Figure 1 Appendix Figure 4 Appendix Figure 6 and attached Figure 7 In a preferred embodiment of the present invention, the horizontal moving mechanism 3 includes a horizontal moving mounting frame 301. Two sliding members 302 are fixed on the horizontal moving mounting frame 301 and rotatably connected to a vertical lifting cylinder 303. Multiple rollers are rotatably connected to each sliding member 302. Two slide rails 304 are fixed on the fixed mounting frame 2. The two sliding members 302 are slidably engaged with the two slide rails 304 respectively. The drive end of the horizontal cylinder 5 is connected to the horizontal moving mounting frame 301. When the horizontal cylinder 5 extends or retracts, it drives the horizontal moving mounting frame 301 to reciprocate along the two slide rails 304. The rollers on the sliding members 302 support and guide the horizontal moving mounting frame 301. The step assembly mechanism 4 moves outward from the vehicle body or retracts into the fixed mounting frame 2 along with the horizontal moving mounting frame 301.

[0039] Please see the appendix Figure 8 and attached Figure 9 In a preferred embodiment of the present invention, the horizontal locking mechanism 7 includes a fixed shaft 701. The fixed shaft 701 is fixedly connected to the horizontal moving mounting frame 301. The fixed shaft 701 is locked in place with the locking member 702. A guide block 703 is fixedly fixed on the fixed mounting frame 2. A pull rod 704 is slidably connected inside the guide block 703. The pull rod 704 is connected to the locking member 702. A spring 705 is sleeved on the outside of the pull rod 704. One end of the spring 705 abuts against the pull rod 704, and the other end of the spring 705 abuts against the guide block 703. When the locking member 702 locks the fixed shaft 701, it can restrict the movement of the horizontal moving mounting frame 301. After the horizontal locking mechanism 7 is vented, the locking between the locking member 702 and the fixed shaft 701 is released. Manually pulling the pull rod 704 can also release the locking between the locking member 702 and the fixed shaft 701. After the pull rod 704 is released, the spring 705 drives the pull rod 704 to return to its original position.

[0040] Please see the appendix Figure 5 and attached Figure 6 In a preferred embodiment of the present invention, the skirt mechanism 6 includes a skirt 602, an opening cylinder 601 is installed between the skirt 602 and the fixed mounting frame 2, the skirt 602 is locked in place with an electromechanical lock 603, a four-corner mechanical lock is installed on the skirt 602, and an electronic mechanical lock 9 is locked in place with the horizontal movement mechanism 3; when the opening cylinder 601 is vented and extended, it drives the skirt 602 to open, the electromechanical lock 603 is used to lock the skirt 602, and after the electronic mechanical lock 9 is unlocked, the horizontal movement mechanism 3 is allowed to move to the outside of the vehicle body; when the vehicle is in a state of no power and no air, the operator can use the four-corner mechanical lock key to release the mechanical lock of the skirt 602 and manually open the skirt 602.

[0041] Please see the appendix Figure 3To be continued Figure 5 In a preferred embodiment of the present invention, the ventilation mechanism 8 includes a single tube clamp 801, which is fixed on the fixed mounting frame 2. A single-side air pipe 802 is installed inside the single tube clamp 801. One end of the single-side air pipe 802 is connected to the control unit box 1, and the other end of the single-side air pipe 802 is connected to the device air circuit adapter block 803. The device air circuit adapter block 803 is connected to the air circuits of the horizontal cylinder 5, the vertical lifting cylinder 303, the opening cylinder 601, and the horizontal locking mechanism 7, respectively. The working gas is delivered to the horizontal cylinder 5, the vertical lifting cylinder 303, the opening cylinder 601, and the horizontal locking mechanism 7 through the single-side air pipe 802 and the device air circuit adapter block 803, providing working gas for the horizontal movement of the horizontal moving mounting frame 301, the unfolding of the step assembly mechanism 4, the opening of the skirt 602, and the unlocking of the horizontal locking mechanism 7.

[0042] Please see the appendix Figure 1 Appendix Figure 3 To be continued Figure 9 In a preferred embodiment of the present invention, when the vehicle is in a state of having electricity and gas and needs to be evacuated urgently, the control unit box 1 receives a zero speed signal, an emergency evacuation mode signal, and an emergency door opening command signal. After the three signals meet the starting conditions, the electromechanical lock 603 releases the lock on the skirt panel 602, the solenoid valve corresponding to the opening cylinder 601 is energized, the opening cylinder 601 is vented and extends, and drives the skirt panel 602 to open. After the opening cylinder 601 is in position, it sends a position signal back to the control unit box 1. The control unit box 1 controls the solenoid valve corresponding to the opening cylinder 601 to be de-energized, and controls the solenoid valve corresponding to the horizontal locking mechanism 7 to be energized, so that the horizontal locking mechanism 7 is unlocked.

[0043] After receiving the feedback signal of the opening cylinder 601 and delaying for 2 seconds, the electronic mechanical lock 9 of the device is unlocked, the solenoid valve corresponding to the horizontal cylinder 5 is energized, the horizontal cylinder 5 is vented and pushes the horizontal moving mounting bracket 301 to move outward of the vehicle body, the two sliding parts 302 move along the two slide rails 304, and the step assembly mechanism 4 moves out of the vehicle body along with the horizontal moving mounting bracket 301; after the horizontal cylinder 5 is in position, it sends a feedback signal of being in position to the control unit box 1, the solenoid valve corresponding to the horizontal cylinder 5 is de-energized, the solenoid valve corresponding to the horizontal locking mechanism 7 is de-energized and returns to locking, so that the horizontal moving mounting bracket 301 is kept in the moved-out position.

[0044] After receiving the positioning feedback signal from the horizontal cylinder 5 and delaying for 2 seconds, the solenoid valve corresponding to the vertical lifting cylinder 303 is energized. The vertical lifting cylinder 303 is vented and retracted, driving the connecting plate 404 to move. The connecting plate 404 drives the first connecting rod 402 and the first follower rod 403 to move, and the middle step 405 rises relative to the fixed step 401. The middle step 405 drives the second connecting rod 406 and the second follower rod 407 to move, and the top step 408 rises synchronously. The extension plate 419 and the slider 420 simultaneously drive the connecting plate 409 to rotate, and the bottom step 411 extends outward. After the step assembly mechanism 4 is deployed, the pawl 415 locks the convex shaft 414 to form a mechanical self-lock, and the fixed step 401, the middle step 405, the top step 408 and the bottom step 411 remain in the deployed state. After the vertical lifting cylinder 303 is in position, it sends a positioning signal back to the control unit box 1.

[0045] When the vehicle is without power or gas, the operator uses the four-corner lock key to release the mechanical lock of the skirt panel 602 and manually opens the skirt panel 602. The operator manually pulls the lever 704 to release the horizontal locking mechanism 7, and pulls the horizontal moving mounting bracket 301 and the step assembly mechanism 4 out of the vehicle body along the slide rail 304. After the horizontal moving mounting bracket 301 is pulled out into place, the horizontal locking mechanism 7 is locked again. The operator manually pushes the step assembly mechanism 4 to unfold, and the pawl 415 locks the cam shaft 414 to form a mechanical self-locking, so that the fixed step 401, the middle step 405, the top step 408 and the bottom step 411 form a stepped structure for emergency evacuation.

[0046] Working principle:

[0047] The fixed mounting frame 2 serves as a support, and the control unit box 1 is fixed below the fixed mounting frame 2. The horizontal moving mechanism 3 is housed inside the fixed mounting frame 2. The horizontal moving mounting bracket 301 maintains a sliding engagement with two slide rails 304 through two sliding members 302. The rollers on the sliding members 302 support and guide the horizontal moving mounting bracket 301. When the horizontal cylinder 5 extends or retracts, the driving end of the horizontal cylinder 5 drives the horizontal moving mounting bracket 301 to slide back and forth along the slide rails 304. The step assembly mechanism 4 moves into or out of the fixed mounting frame 2 along with the horizontal moving mounting bracket 301.

[0048] The ventilation mechanism 8 is installed on the fixed installation frame 2. A single pipe clamp 801 fixes a single-side air pipe 802. One end of the single-side air pipe 802 is connected to the control unit box 1, and the other end is connected to the device air circuit adapter block 803. The device air circuit adapter block 803 provides working gas to the horizontal cylinder 5, the vertical lifting cylinder 303, the opening cylinder 601, and the horizontal locking mechanism 7. The opening cylinder 601 is used to drive the skirt 602 to open, and the electromechanical lock 603 is used to lock the skirt 602.

[0049] When the vehicle is in a state of having electricity and gas and needs to be evacuated urgently, the control unit box 1 receives a zero-speed signal, an emergency evacuation mode signal, and an emergency door opening command signal. After the three signals meet the starting conditions, the electromechanical lock 603 is unlocked, the solenoid valve corresponding to the opening cylinder 601 is energized, the opening cylinder 601 is vented and extended, and drives the skirt 602 to open. After the opening cylinder 601 is in position, it sends a position signal back to the control unit box 1. The control unit box 1 controls the solenoid valve corresponding to the opening cylinder 601 to be de-energized, and controls the solenoid valve corresponding to the horizontal locking mechanism 7 to be energized, and the horizontal locking mechanism 7 is unlocked.

[0050] When the horizontal locking mechanism 7 is in the locked state, the locking member 702 locks the fixed shaft 701, restricting the displacement of the horizontal moving mounting bracket 301; the fixed shaft 701 is fixed on the horizontal moving mounting bracket 301, the pull rod 704 is slidably engaged in the guide block 703, and the spring 705 is sleeved on the outside of the pull rod 704; manually pulling the pull rod 704 can release the lock between the locking member 702 and the fixed shaft 701, and after the pull rod 704 is released, the spring 705 drives the pull rod 704 to reset.

[0051] After receiving the feedback signal of the opening cylinder 601 and delaying for 2 seconds, the control unit box 1 unlocks the electronic mechanical lock 9 and energizes the solenoid valve corresponding to the horizontal cylinder 5. The horizontal cylinder 5 is vented to push the horizontal moving mounting bracket 301 to move outward of the vehicle body, the sliding member 302 slides along the slide rail 304, and the step assembly mechanism 4 moves out of the vehicle body along with the horizontal moving mounting bracket 301. After the horizontal cylinder 5 is in position, it sends a feedback signal to the control unit box 1, the solenoid valve corresponding to the horizontal cylinder 5 is de-energized, and the solenoid valve corresponding to the horizontal locking mechanism 7 is de-energized and returns to locking.

[0052] After receiving the positioning feedback signal of the horizontal cylinder 5 and delaying for 2 seconds, the solenoid valve corresponding to the vertical lifting cylinder 303 is energized; the vertical lifting cylinder 303 is vented and retracted, driving the connecting plate 404 to move. The connecting plate 404 drives the first connecting rod 402 to rotate. After the first connecting rod 402 and the first follower rod 403 are linked, the middle step 405 is driven to rise relative to the fixed step 401. After the middle step 405 rises, it drives the second connecting rod 406 and the second follower rod 407 to move, and the top step 408 rises synchronously.

[0053] During the upward movement of the middle step 405, the convex shaft 414 and the extension plate 419 move. The extension plate 419 moves the slider 420. The slider 420 rotates the connecting plate 409 around the connection point between the connecting plate 409 and the fixed step 401. The connecting plate 409 causes the bottom step 411 to extend outward. During the movement of the bottom step 411, the sliding shaft 410 on the connecting plate 409 slides along the sliding groove 412 on the follower plate 413. The limiting post 417 at the bottom of the fixed step 401 slides along the guide post 416 on the bottom step 411 to guide the movement of the bottom step 411.

[0054] When the step assembly mechanism 4 is unfolded, the cam shaft 414 gradually moves toward the pawl 415. The cam shaft 414 contacts the pawl 415 and drives the pawl 415 to rotate. The cam shaft 414 continues to move and slides into the inside of the pawl 415. The pawl 415 locks the cam shaft 414 and prevents the cam shaft 414 from moving in the opposite direction, so that the step assembly mechanism 4 forms a mechanical self-lock, fixing the step 401, the middle step 405, the top step 408 and the bottom step 411 to maintain the unfolded state. After the vertical lifting cylinder 303 is in position, it sends a position signal to the control unit box 1. The solenoid valve corresponding to the vertical lifting cylinder 303 is de-energized. The position feedback signal is synchronously transmitted to the vehicle and serves as a feedback signal for the vehicle to perform the door opening action.

[0055] When the device is retracted, the manual actuation of the pawl 415 causes it to disengage from the cam shaft 414 and release the mechanical self-locking; the vertical lifting cylinder 303 returns to its original position and extends, the first connecting rod 402, the first follower rod 403, the second connecting rod 406, and the second follower rod 407 move in opposite directions, the middle step 405 and the top step 408 descend, and the connecting plate 409 drives the bottom step 411 to retract; after the step assembly mechanism 4 is fully folded, the horizontal locking mechanism 7 is released, the horizontal cylinder 5 retracts and drives the horizontal moving mounting frame 301 and the step assembly mechanism 4 to retract into the fixed mounting frame 2 along the slide rail 304; the rollers on the limiting plate 418 contact the folded step assembly mechanism 4, restricting the step assembly mechanism 4 from unfolding inside the vehicle body; after the horizontal moving mounting frame 301 is retracted into place, the horizontal locking mechanism 7 returns to its original position, the skirt 602 closes and is locked by the electromechanical lock 603.

[0056] When the vehicle is without power or gas, the operator uses the four-corner mechanical lock key to release the mechanical lock of the skirt panel 602 and manually opens the skirt panel 602. Pulling the lever 704 releases the horizontal locking mechanism 7, and manually pulls the horizontal moving mounting bracket 301 and the step assembly mechanism 4 out of the vehicle body along the slide rail 304. After the horizontal moving mounting bracket 301 is pulled out into place, the horizontal locking mechanism 7 is locked again. The step assembly mechanism 4 is manually pushed out, and the claw 415 locks the cam shaft 414 to form a mechanical self-lock, fixing the step 401, the middle step 405, the top step 408 and the bottom step 411 to form an evacuation staircase.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended description and its equivalents.

Claims

1. An automatic evacuation device for emergency evacuation of intercity vehicles, comprising a fixed mounting frame (2), characterized in that, The fixed mounting frame (2) is fixed with a control unit box (1) below it. The fixed mounting frame (2) houses a horizontal moving mechanism (3). A step assembly mechanism (4) is installed on the horizontal moving mechanism (3). A horizontal cylinder (5) is fixed on the fixed mounting frame (2) and its drive end is connected to the horizontal moving mechanism (3). A skirt mechanism (6) is connected to the fixed mounting frame (2). A horizontal locking mechanism (7) and a device electromechanical lock (9) are respectively located on both sides of the fixed mounting frame (2). The horizontal locking mechanism (7) is connected to the horizontal moving mechanism (3). A ventilation mechanism (8) is installed on the fixed mounting frame (2). The step assembly (4) includes a first connecting rod (402), which connects the fixed step (401) and the middle step (405) to the first follower rod (403), a second connecting rod (406) and the second follower rod (407) to the middle step (405) and the top step (408), and a connecting plate (409) to the bottom step (411) and the fixed step (401).

2. The automatic evacuation device for emergency evacuation of intercity trains according to claim 1, characterized in that: The horizontal moving mechanism (3) has a fixed step (401) fixedly connected to its horizontal moving mounting frame (301) and a vertical lifting cylinder (303) rotatably connected to it. The driving end of the vertical lifting cylinder (303) is rotatably connected to the connecting plate (404). Both ends of the connecting plate (404) are fixedly connected to the first connecting rod (402). The middle part of the first connecting rod (402) is rotatably connected to the first follower rod (403). One end of the first connecting rod (402) is rotatably connected to the fixed step (401), and the other end is slidably connected to the inside of the middle step (405). One end of the first follower rod (403) is slidably connected to the inside of the fixed step (401), and the other end is rotatably connected to the middle step (405).

3. The automatic evacuation device for emergency evacuation of intercity trains according to claim 1, characterized in that: One end of the first follower rod (403) rotatably connected to the middle step (405) is coaxially rotatably connected to one end of the second connecting rod (406), and the other end of the second connecting rod (406) is slidably connected inside the top step (408); one end of the first connecting rod (402) slidably connected inside the middle step (405) is coaxially rotatably connected to one end of the second follower rod (407), and the other end of the second follower rod (407) is rotatably connected to the top step (408).

4. The automatic evacuation device for emergency evacuation of intercity trains according to claim 1, characterized in that: The second follower rod (407) has a convex shaft (414) fixed at one end near the middle step (405). The convex shaft (414) passes through the middle step (405) and is rotatably connected to the extension plate (419). The other end of the extension plate (419) is fixed with a slider (420). One end of the slider (420) is slidably connected to the inner wall of the middle step (405), and the other end is slidably connected to one end of the connecting plate (409). The middle part of the connecting plate (409) is rotatably connected to the fixed step (401), and the other end is rotatably connected to the bottom step (411).

5. The automatic evacuation device for emergency evacuation of intercity trains according to claim 4, characterized in that: A pawl (415) is rotatably connected to the middle step (405). The pawl (415) is located at the moving path of the convex shaft (414), and the pawl (415) is locked to the convex shaft (414).

6. The automatic evacuation device for emergency evacuation of intercity trains according to claim 1, characterized in that: A follower plate (413) is rotatably connected to the bottom step (411), and a sliding groove (412) is provided on the follower plate (413). A sliding shaft (410) is fixed on the connecting plate (409), and the sliding shaft (410) is slidably connected to the inner wall of the sliding groove (412). A hollow guide post (416) is fixed on the bottom step (411), and a limit post (417) is fixed at the bottom of the fixed step (401). The limit post (417) is slidably inserted into the inner wall of the guide post (416). A limit plate (418) is fixed on the fixed mounting frame (2), and multiple rollers are rotatably connected to the limit plate (418).

7. The automatic evacuation device for emergency evacuation of intercity trains according to claim 1, characterized in that: The horizontal moving mechanism (3) includes a horizontal moving mounting frame (301), on which two sliding parts (302) are fixed and rotatably connected to a vertical lifting cylinder (303). Each sliding part (302) is rotatably connected to multiple rollers. The fixed mounting frame (2) is fixed with two slide rails (304), and the two sliding parts (302) are respectively slidably engaged with the two slide rails (304). The driving end of the horizontal cylinder (5) is connected to the horizontal moving mounting frame (301).

8. The automatic evacuation device for emergency evacuation of intercity vehicles according to claim 7, characterized in that: The horizontal locking mechanism (7) includes a fixed shaft (701), which is fixedly connected to the horizontal moving mounting bracket (301). The fixed shaft (701) is locked in place with the locking member (702). A guide block (703) is fixedly mounted on the fixed mounting frame (2). A pull rod (704) is slidably connected to the inner wall of the guide block (703). The pull rod (704) is connected to the locking member (702). A spring (705) is sleeved on the outside of the pull rod (704). One end of the spring (705) abuts against the pull rod (704), and the other end abuts against the guide block (703).

9. The automatic evacuation device for emergency evacuation of intercity trains according to claim 1, characterized in that: The skirt mechanism (6) includes a skirt (602), an opening cylinder (601) is installed between the skirt (602) and the fixed mounting frame (2), the skirt (602) is locked in place with an electromechanical lock (603), and a four-corner mechanical lock is installed on the skirt (602); the device electromechanical lock (9) is locked in place with the horizontal moving mechanism (3).

10. The automatic evacuation device for emergency evacuation of intercity vehicles according to claim 1, characterized in that: The ventilation mechanism (8) includes a single tube clamp (801), which is fixed on the fixed mounting frame (2). A single-side air pipe (802) is installed on the inner wall of the single tube clamp (801). One end of the single-side air pipe (802) is connected to the control unit box (1), and the other end is connected to the device air circuit adapter block (803). The device air circuit adapter block (803) is connected to the air circuits of the horizontal cylinder (5), the vertical lifting cylinder (303), the opening cylinder (601), and the horizontal locking mechanism (7).

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