Side door evacuation device integrating electric operation and manual operation and operation method of side door evacuation device

Abstract

The invention provides a side door evacuation device integrating electric operation and manual operation and an operation method of the side door evacuation device. The electric and manual operation integrated side door evacuation device comprises a framework assembly, a tray assembly, a cover plate assembly and an evacuation ladder assembly. The cover plate assembly comprises a cover plate and an opening and closing air cylinder, the opening and closing air cylinder controls the cover plate to be opened and closed, the tray assembly comprises a tray support and a telescopic air cylinder, the evacuation ladder assembly is arranged on the tray support, and the telescopic air cylinder controls the tray support to move. The evacuation ladder assembly comprises a folding step ladder, a folding air cylinder and a limiting mechanism, and the folding air cylinder controls the folding step ladder to be unfolded or folded. Compared with an existing evacuation device which is purely operated manually, the side door evacuation device integrating electric operation and manual operation has the advantages that an electric driving function is added, and personnel operation is avoided. Compared with an evacuation device of an electric structure, the evacuation device has a manual operation mode, and the situation that the evacuation device cannot be used after the vehicle is powered off and powered off is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to evacuation devices, in particular to a side door evacuation device with integrated electric and manual operation and an operation method thereof. BACKGROUND

[0002] The height of the entrance and exit provided on the vehicle body of a rail transit vehicle is flush with the platform. In case of an emergency during driving, the vehicle needs to be stopped urgently. Since there is a certain height difference between the entrance and exit on the vehicle body and the evacuation platform beside the track, an evacuation device needs to be provided between the height difference to ensure safety. The existing evacuation device is generally provided below the vehicle body and is manually set up when needed or is driven to expand by an internal circuit. For the manually operated structure, a dedicated staff needs to be present. If it is a driverless train such as a subway, the passengers cannot operate the entire evacuation device. For the electrically operated structure, when the train actually appears in an emergency, the internal circuit of the train may be damaged, so that the evacuation device cannot be driven to expand, which poses a safety hazard. Moreover, if the power is not cut off in advance and the evacuation device normally expands, the air cylinder supporting the evacuation device will deflate during the evacuation process, which will cause the evacuation device to contract and cause harm to the passengers, posing a safety hazard. Therefore, there is a need for a side door evacuation device that can be operated by hand or electricity, and the two modes do not affect each other. Moreover, the failure of the electric function during the evacuation process will not affect the stability of the evacuation device. SUMMARY

[0003] To solve the problems that the existing manually operated evacuation device and the electrically operated evacuation device both have defects in use and cannot be operated by hand and electricity, the present application provides a side door evacuation device with integrated electric and manual operation to solve the above problems.

[0004] A side door evacuation device with integrated electric and manual operation is installed in the bottom of the vehicle body of a rail vehicle, comprising a skeleton assembly installed below the floor of the vehicle body, a tray assembly and a cover plate assembly provided on the skeleton assembly, and an evacuation ladder assembly provided on the tray assembly; the cover plate assembly comprises a cover plate and an opening and closing air cylinder, the opening and closing air cylinder connects the cover plate and the skeleton assembly, and controls the opening and closing of the cover plate; the tray assembly comprises a tray support and a telescopic air cylinder, the evacuation ladder assembly is provided on the tray support, the tray support is movably connected with the skeleton assembly, and the telescopic air cylinder controls the movement of the tray support along the skeleton assembly, so that the evacuation ladder assembly is extended or retracted into the vehicle body; the evacuation ladder assembly comprises a folding ladder, a folding air cylinder and a limiting mechanism, the folding air cylinder controls the unfolding or folding of the folding ladder along the limiting mechanism, and the head and tail ends of the limiting mechanism are both mechanical dead points.

[0005] In a preferred embodiment of the side door evacuation device provided by the present application, the cover plate assembly comprises a cover plate, a cover plate support beam and an opening and closing cylinder, the cover plate is connected to the frame assembly through the cover plate support beam and rotates around the connection point of the cover plate support beam and the frame assembly, and the opening and closing cylinder is connected to the cover plate support beam and the frame assembly, in the extended state, the cover plate is closed and attached to the outer wall of the vehicle body, and in the retracted state, the cover plate is rotated downward to open inside the vehicle body. The frame assembly comprises a plurality of track supports arranged in parallel and a reinforcing support arranged between the track supports, the track supports are arranged transversely along the vehicle body, the tray support is slidingly connected to the track support, and the telescopic cylinder is connected to the tray support and the reinforcing support to control the movement of the tray support along the track support.

[0006] In a preferred embodiment of the side door evacuation device provided by the present application, the folding step ladder comprises a plurality of parallelogram mechanisms arranged side by side and steps arranged between the parallelogram mechanisms, and the parallelogram mechanisms are movably connected to the tray support. The limiting structure comprises a straight track arranged on the parallelogram mechanism and an arc-shaped track arranged on the tray support, the folding cylinder is connected to a driving rod and the tray support, and the driving rod is slidingly connected to the straight track and the arc-shaped track. The driving rod is provided with an operating handle.

[0007] In a preferred embodiment of the side door evacuation device provided by the present application, the device further comprises a locking assembly, which comprises three locking mechanisms and an unlocking mechanism for unlocking all the locking mechanisms, the three locking mechanisms are respectively arranged at the front end close to the outer wall of the vehicle body, the middle end close to the outer wall of the vehicle body and the rear end away from the outer wall of the vehicle body of the frame assembly, and are respectively referred to as the front end locking mechanism, the middle end locking mechanism and the rear end locking mechanism. The cover plate assembly further comprises an opening and closing lock bolt, the opening and closing lock bolt is connected to the front end locking mechanism when the cover plate is closed; the tray support is provided with a telescopic lock bolt, the telescopic lock bolt is connected to the rear end locking mechanism when the evacuation ladder assembly is retracted, and the telescopic lock bolt is connected to the middle end locking mechanism when the evacuation ladder assembly is extended.

[0008] In a preferred embodiment of the side door evacuation device provided by the present application, the unlocking mechanism comprises an electronic unlocking mechanism and a manual unlocking mechanism, both of which can independently unlock all the locking mechanisms, the electronic unlocking mechanism is connected to the control system of the driver's cabin of the train, and the manual unlocking mechanism is arranged at the position of the side door of the vehicle body.

[0009] An operation method of a side door evacuation device with integrated electric and manual operation, comprising a manual method and an automatic method: The opening process of the manual method is that the manual unlocking mechanism unlocks all the locking mechanisms, the opening and closing lock pin is separated from the front end locking mechanism, the telescopic lock pin is separated from the rear end locking mechanism, the cover plate is naturally opened under the action of gravity, the evacuation ladder assembly is manually pulled out, the telescopic lock pin is locked with the middle end locking mechanism, the folding step ladder is manually unfolded, and the mechanical dead point at the tail end of the limiting rail is locked; The closing process of the manual method is that the manual unlocking mechanism unlocks all the locking mechanisms, the telescopic lock pin is separated from the middle end locking mechanism, the folding step ladder is folded, the mechanical dead point at the head end of the limiting rail is locked, the evacuation ladder assembly is manually pushed in, the telescopic lock pin is locked with the rear end locking mechanism, and the cover plate is manually lifted to close, and the opening and closing lock pin is locked with the front end locking mechanism. The opening process of the automatic method is that the automatic unlocking mechanism unlocks all the locking mechanisms, the opening and closing lock pin is separated from the front end locking mechanism, the telescopic lock pin is separated from the rear end locking mechanism, the opening and closing cylinder opens the cover plate, the telescopic cylinder pushes out the evacuation ladder assembly, the telescopic lock pin is locked with the middle end locking mechanism, the folding cylinder unfolds the folding step ladder, and the mechanical dead point at the tail end of the limiting rail is locked. The closing process of the automatic method is that the automatic unlocking mechanism unlocks all the locking mechanisms, the telescopic lock pin is separated from the middle end locking mechanism, the folding cylinder folds the folding step ladder, the mechanical dead point at the head end of the limiting rail is locked, the telescopic cylinder pulls in the evacuation ladder assembly, the telescopic lock pin is locked with the tail end locking mechanism, the opening and closing cylinder closes the cover plate, and the opening and closing lock pin is locked with the front end locking mechanism.

[0010] Compared with the prior art, the side door evacuation device provided by the application and the operation method thereof have the following beneficial effects: 1、The cover plate assembly provided by the application is arranged, and a dustproof and waterproof closed space is formed in combination with a protective cover body and a vehicle body and the like, so that the evacuation ladder and the like are effectively protected, and the service life is significantly prolonged. All mechanisms are installed in the space, and modular installation is easy to realize, and different vehicle models are suitable. The cover plate assembly is designed to be opened and closed in the upward and downward directions, which is convenient and does not affect the folding and unfolding of the evacuation ladder.

[0011] 2、The scheme provided by the present application adopts a lock body compatible with electronic unlocking and mechanical unlocking to fix each component and the like mechanism, and adopts a cylinder to drive each component to move, so as to realize the electric control function and the manual operation function which can be used independently. The electronic mechanical lock is controlled to be unlocked by an electric signal, and a lock signal and a travel switch feedback lock signal are fed back. The unlocking and locking functions can also be controlled by manual operation, so as to ensure the reliability of each step.

[0012] 3、The evacuation ladder assembly in the scheme provided by the present application adopts a limiting rail and the like structure, so as to realize mechanical dead point locking in the folded state and the unfolded state, avoid the problem that the evacuation ladder lacks support due to power failure, and has the advantages of safety and stability and low failure rate.

[0013] 4、The unfolding steps of the device as a whole in the scheme provided by the present application are simple, manual operation does not need special staff to be present to operate, and evacuation can be conveniently and quickly completed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structure diagram of the side door evacuation device with the integrated electric and manual operation in the closed state when the device is installed on a vehicle body; Figure 2 is a structure diagram of the side door evacuation device with the integrated electric and manual operation in the extended state when the device is installed on a vehicle body; Figure 3 is a structure diagram of the side door evacuation device with the integrated electric and manual operation in the unfolded state when the device is installed on a vehicle body; Figure 4 is a structure diagram of the side door evacuation device with the integrated electric and manual operation in the closed state; Figure 5 is Figure 4 a structure diagram in another view; Figure 6 is a structure diagram of the side door evacuation device with the integrated electric and manual operation in the extended state; Figure 7 is Figure 6 a structure diagram in another view; Figure 8 is a structure diagram of the side door evacuation device with the integrated electric and manual operation in the unfolded state; Figure 9 is Figure 8 a structure diagram in another view.

[0015] The figure labels: vehicle body 1, floor 11, protective cover body 12, cover body framework 121, baffle 122, observation window 123, framework assembly 2, track bracket 21, hanging arm 211, hanging column 212, reinforcing bracket 22, tray assembly 3, tray bracket 31, sliding seat 311, telescopic lock bolt 312, telescopic cylinder 32, tray crossbeam 33, cover plate assembly 4, cover plate 41, sealing strip 411, cover plate support beam 42, opening and closing lock bolt 421, opening and closing cylinder 43, evacuation ladder assembly 5, folding step ladder 51, step ladder 511, control arm 512, drive rod 513, operation handle 514, folding cylinder 52, limiting track 53, end lock body 61, middle end lock body 62, rear end lock body 63, manual unlocking mechanism 64. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0017] Please refer to Figures 1 to 3 , respectively, the structure of the side door evacuation device provided by the present application with electric and manual operation integration when closing, extending and unfolding.

[0018] The side door evacuation device with electric and manual operation integration is arranged in the bottom of the vehicle body 1, below the space of the floor 11 of the vehicle body 1. And at both ends of the space below the floor 11, protective cover bodies 12 are respectively arranged, forming a separate cavity for installing equipment. The protective cover body 12 includes a cover body framework 121 and a baffle 122, and the baffle 122 is provided with an observation window 123.

[0019] The side door evacuation device with electric and manual operation integration includes a framework assembly 2 fixed to the bottom of the floor 11. It also includes a tray assembly 3 and a cover plate assembly 4 arranged below the framework assembly 2, and an evacuation ladder assembly 5 arranged on the tray assembly 3.

[0020] The basic working principle is that the cover plate assembly 4 is opened, the tray assembly 3 extends the evacuation ladder assembly 5 from the vehicle body, and the evacuation ladder assembly 5 is unfolded. After use, the evacuation ladder assembly 5 is folded, the tray assembly 3 pulls the evacuation ladder assembly 5 back to the vehicle body, and the cover plate assembly 4 is closed.

[0021] The position above the evacuation ladder assembly 5 is the side door of the vehicle body 1, and when evacuating, passengers pass through the unfolded evacuation ladder assembly 5 from the side door to the ground or evacuation platform. The door body is not separately drawn in the drawings, but it does not affect the understanding and implementation of the above-mentioned solutions by those skilled in the art.

[0022] Please refer to Figures 4 to 7 , Figure 4 and Figure 5Respectively are different perspective, the main body structure of the side door evacuation device with integrated electric and manual operation provided by the application in the structure diagram when closing, Figure 6 and Figure 7 Respectively are different perspective, the main body structure of the side door evacuation device with integrated electric and manual operation provided by the application in the structure diagram when extending.

[0023] The main body of the framework assembly 2 is two long straight steel arranged in parallel, recorded as track supports 21. The two ends of the top of the track supports 21 are provided with hanging arms 211, and the middle is provided with a hanging column 212, which is fixed to the bottom of the floor 11. A plurality of reinforcing supports 22 are arranged between the track supports 21, and a partition plate is laid. The partition plate, the protective cover 12 and the bottom end of the vehicle body 1 form a closed cavity. The bottom of the track support 21 is opened along the length direction, so as to form a track for installing the tray assembly 3.

[0024] The tray assembly 3 includes a tray support 31 and a telescopic cylinder 32. The main body of the tray support 31 is two long straight steel arranged in parallel, which are located directly below the two track supports 21. The two tray supports 31 are both provided with a sliding seat 311 at the middle and right side position of the top surface, the sliding seat 311 is inserted into the opening at the bottom of the track support 21, and a roller is arranged to connect with the opening.

[0025] The middle position between the tray supports 31 is provided with a tray cross beam 33, one end of the piston rod of the two telescopic cylinders 32 is hinged with the tray cross beam 33, and one end of the cylinder body is hinged with the reinforcing support 22. The tray support 31 is pushed to slide along the track support 21 by the telescopic cylinder 32.

[0026] The outer side of the two tray supports 31 is provided with a telescopic lock bolt 312 between the two sliding seats 311. When the telescopic cylinder 32 is contracted to the bottom, the tray support 31 and the evacuation ladder assembly 5 carried thereby are driven to move to the right. When moved to the set position, the telescopic lock bolt 312 is connected with a lock body, recorded as a rear end lock body 63. When the telescopic cylinder 32 is elongated to the bottom, the tray support 31 and the evacuation ladder assembly 5 carried thereby are driven to move to the left. When moved to the set position, the telescopic lock bolt 312 is connected with another lock body, recorded as a middle end lock body 62.

[0027] The cover plate assembly 4 includes a cover plate 41, a cover plate support beam 42 and an opening and closing cylinder 43.

[0028] A square opening is arranged at the left side position of the bottom of the vehicle body 1, and the size of the cover plate 41 is matched with the opening. When the cover plate 41 is closed, the upper side and the front and rear side edges thereof are aligned with the edges of the opening, and the lower side edge is folded inward and placed in the lower side edge of the opening. The purpose is to facilitate the inward rotation of the cover plate 41 to open. Further, a sealing strip 411 is arranged at the lower side edge of the cover plate 41, and the sealing strip 411 abuts against the lower side edge of the opening when the cover plate 41 is closed.

[0029] The middle part of the inner side of the cover plate 41 is connected with a cover plate support beam 42 at the front and rear positions respectively, and the other end of the cover plate support beam 42 is hingedly connected to the outer side of the two track supports 21. The cover plate 41 can rotate around this hinged point to achieve opening and closing. The piston rod of the two opening and closing cylinders 43 is hingedly connected to the middle part of the two cover plate support beams 42 respectively, and the cylinder body is hingedly connected to the outer side of the two track supports 21 respectively. With the opening and closing of the opening and closing cylinder 43, the cover plate 41 is pushed to rotate around the hinged point of the cover plate support beam 42 to achieve opening and closing.

[0030] The middle part of the cover plate support beam 42 is provided with an opening and closing lock bolt 421, which is connected with the lock body when the cover plate 41 is closed, and is recorded as the front end lock body 61.

[0031] The front end lock body 61, the middle end lock body 62 and the rear end lock body 63 are all arranged on the outer side of the track support 21. The front end lock body 61 is arranged at the left end of the track support 21, the middle end lock body 62 is arranged at the position close to the front end lock body 61 on the left side of the track support 21, the cover plate support beam 42 is hingedly connected to the position on the right side of the middle end lock body 62 on the track support 21, and the rear end lock body 63 is arranged at the middle part of the track support 21, which is approximately at the position of the left end of the cylinder body of the telescopic cylinder 32.

[0032] In addition, it also includes an electronic unlocking mechanism and a manual unlocking mechanism 64 which can independently control the unlocking of the front end lock body 61, the middle end lock body 62 and the rear end lock body 63. The electronic unlocking mechanism is connected to the control system in the driver's cabin, and when it is activated, it controls the unlocking of all the lock bodies through the circuit. The manual unlocking mechanism 64 is arranged at the position of the side door of the vehicle body, and when it is activated, it controls the unlocking of all the lock bodies through the pull wire. Correspondingly, the three lock bodies all use products that can be compatible with electronic unlocking and mechanical unlocking.

[0033] Further, the three lock bodies are all products with standby function, that is, after unlocking through the electronic unlocking mechanism or the manual unlocking mechanism 64, the lock pin will be retracted into the lock body and maintain standby state, and when the lock body is impacted again, the lock pin will be ejected to achieve locking.

[0034] Please also refer to Figures 6 to 9 , Figure 6 and Figure 7 are structure diagrams of the main structure of the side door evacuation device provided by the application with the functions of electric and manual operation in the extension state from different angles, Figure 8 and Figure 9 are structure diagrams of the main structure of the side door evacuation device provided by the application with the functions of electric and manual operation in the unfolded state from different angles.

[0035] The evacuation ladder assembly 5 is arranged between the left side of the tray supports 31. The evacuation ladder assembly 5 comprises a folding ladder 51, a folding cylinder 52 and a limiting rail 53.

[0036] The folding ladder 51 comprises two groups of parallelogram structures arranged side by side, each of which comprises three long arms and two short arms hinged to the three long arms.

[0037] The two long arms on the left side of the three long arms are extended at both ends, and a ladder 511 is hinged at both ends and the middle position. The hinge points at both ends of the ladder 511 arranged in the middle layer are further hinged to the positions of the left ends of the two tray supports 31.

[0038] The rightmost long arm serves as a control arm 512. The control arm 512 is provided with a slot-shaped hole as a limiting slide at a position between the middle hinge point and the lower end hinge point. Two limiting rails 53 are arranged outside the two limiting slides respectively, and are fixed to the inner sides of the two tray supports 31 respectively. The limiting rail 53 is a flat plate provided with an arc-shaped track, and the arc is arranged at an angle with the concave surface downward. When the folding ladder 51 is folded, the lower end of the limiting slide is aligned with the right end of the limiting rail 53, and when the folding ladder 51 is unfolded, the lower end of the limiting slide is aligned with the left end of the limiting rail 53.

[0039] The folding ladder 51 further comprises a driving rod 513, the two ends of which penetrate the limiting slide and the limiting rail 53 respectively and are in sliding engagement with them. The right side of the middle part of the driving rod 513 is hinged to one end of the piston rod of the folding cylinder 52, and the middle part of the cylinder body of the folding cylinder 52 is hinged to the tray cross beam 33. The left side of the driving rod 513 is provided with an operating handle 514, the leading end of which is hinged to the driving rod 513, the middle part is engaged with the buckle arranged on the driving rod 513, and the tail end is provided with a handle.

[0040] With the extension of the folding cylinder 52, the driving rod 513 moves upward along the limiting slide and simultaneously moves leftward along the limiting rail 53, driving the folding ladder 51 to unfold; after half the distance, it changes to move downward along the limiting slide while continuing to move leftward along the limiting rail 53, until the left end of the limiting rail 53. At this time, the folding ladder 51 is completely unfolded, and in the direction of the force of the folding ladder 51, it will further push the driving rod 513 to move leftward along the limiting rail 53, forming the effect of mechanical dead point locking.

[0041] With the extension of the folding cylinder 52, the driving rod 513 moves upward along the limiting slide and simultaneously moves leftward along the limiting rail 53, driving the folding ladder 51 to unfold; after half the distance, it changes to move downward along the limiting slide while continuing to move leftward along the limiting rail 53, until the left end of the limiting rail 53. At this time, the folding ladder 51 is completely unfolded, and in the direction of the force of the folding ladder 51, it will further push the driving rod 513 to move leftward along the limiting rail 53, forming the effect of mechanical dead point locking.

[0042] Based on the above structure, the side door evacuation device operation method provided by the application has manual operation and automatic operation.

[0043] The opening process of the automatic method is as follows: Step 1: The control system of the cab is unlocked by the automatic unlocking mechanism, and the front-end lock body 61, the middle-end lock body 62 and the rear-end lock body 63 are all unlocked. At this time, the opening and closing lock bolt 421 is separated from the front-end lock body 61, and the telescopic lock bolt 312 is separated from the rear-end lock body 63.

[0044] Step 2: The control system then controls the opening and closing cylinder 43 to contract, and since the opening and closing lock bolt 421 has been separated from the front-end lock body 61, the cover plate 41 rotates downward to open.

[0045] Step 3: The control system continues to control the telescopic cylinder 32 to extend, and since the telescopic lock bolt 312 has been separated from the rear-end lock body 63, the tray assembly 3 moves left, pushing the evacuation ladder assembly 5 carried thereby out of the vehicle body 1. Until the telescopic lock bolt 312 contacts the middle-end lock body 62 and collides with the middle-end lock body 62, the telescopic lock bolt 312 is locked again by the middle-end lock body 62, so as to fix the tray assembly 3.

[0046] Step 4: The control system finally controls the folding cylinder 52 to extend, so that the folding step ladder swings counterclockwise to unfold, and is locked at the mechanical dead point at the tail end of the limiting rail 53.

[0047] The closing process of the automatic method is as follows: Step 1: The control system of the cab is unlocked by the automatic unlocking mechanism, and the front-end lock body 61, the middle-end lock body 62 and the rear-end lock body 63 are all unlocked. At this time, the opening and closing lock bolt 421 is separated from the front-end lock body 61, and the telescopic lock bolt 312 is separated from the middle-end lock body 62.

[0048] Step 2: The control system then controls the folding cylinder 52 to contract, so that the folding step ladder swings clockwise to fold, and is locked at the mechanical dead point at the head end of the limiting rail 53.

[0049] Step 3: The control system continues to control the telescopic cylinder 32 to contract, and since the telescopic lock bolt 312 has been separated from the middle-end lock body 62, the tray assembly 3 moves right, pulling the evacuation ladder assembly 5 carried thereby back into the vehicle body 1. Until the telescopic lock bolt 312 contacts the rear-end lock body 63 and collides with the rear-end lock body 63, the telescopic lock bolt 312 is locked again by the rear-end lock body 63, so as to fix the tray assembly 3.

[0050] Step 4: The control system finally controls the opening and closing cylinder 43 to extend, until the opening and closing lock bolt 421 contacts the front-end lock body 61 and collides with the front-end lock body 61, and the opening and closing lock bolt 421 is locked again, so as to fix the cover plate 41.

[0051] The opening process of the manual method is as follows: Step 1: Unlocking by manual unlocking mechanism 64 at the side door position of the vehicle body, the front end lock body 61, the middle end lock body 62 and the rear end lock body 63 are all unlocked. At this time, the opening and closing lock bolt 421 is separated from the front end lock body 61, and the telescopic lock bolt 312 is separated from the rear end lock body 63. At the same time, the manual method is only used when the vehicle is powered off, so each cylinder is in a natural pressure relief state.

[0052] Step 2: Since the opening and closing lock bolt 421 has been separated from the front end lock body 61, the opening and closing cylinder 43 is in a natural pressure relief state, so the cover plate 41 naturally drops and opens.

[0053] Step 3: Since the telescopic lock bolt 312 has been separated from the rear end lock body 63, the telescopic cylinder 32 is in a natural pressure relief state, so the user can manually hold the appropriate position on the tray assembly 3 or the evacuation ladder assembly 5 and pull the tray assembly 3 leftward to pull out the evacuation ladder assembly 5 carried by the tray assembly 3 to the outside of the vehicle body 1. Until the telescopic lock bolt 312 contacts the middle end lock body 62 and collides with it again to be locked by the middle end lock body 62, the fixation of the tray assembly 3 is achieved.

[0054] Step 4: Hold the operation handle 514 and pull it outward to drive the folding staircase to swing counterclockwise to achieve unfolding, and lock to the mechanical dead point at the tail end of the limiting rail 53.

[0055] The closing process of the manual method is as follows: Step 1: Unlocking by manual unlocking mechanism 64 at the side door position of the vehicle body, the front end lock body 61, the middle end lock body 62 and the rear end lock body 63 are all unlocked. At this time, the telescopic lock bolt 312 is separated from the middle end lock body 63, and each cylinder is in a natural pressure relief state.

[0056] Step 2: Hold the operation handle 514 and push it inward to drive the folding staircase to swing clockwise to achieve folding, and lock to the mechanical dead point at the head end of the limiting rail 53.

[0057] Step 3: Since the telescopic lock bolt 312 has been separated from the middle end lock body 63, the telescopic cylinder 32 is in a natural pressure relief state, so the user can manually hold the appropriate position on the tray assembly 3 or the evacuation ladder assembly 5 and push the tray assembly 3 rightward to push the evacuation ladder assembly 5 carried by the tray assembly 3 into the vehicle body 1. Until the telescopic lock bolt 312 contacts the rear end lock body 63 and collides with it again to be locked by the rear end lock body 63, the fixation of the tray assembly 3 is achieved.

[0058] Step 4: Since the opening and closing cylinder 43 is in a natural pressure relief state, the user can manually hold the bottom of the cover plate 41 to lift it until the opening and closing lock bolt 421 contacts the front end lock body 61 and collides with it again to be locked by the rear end lock body 63, achieving the fixation of the cover plate 41.

[0059] The above merely illustrates the embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields, which is made by using the content of the present application, is also included in the patent protection scope of the present application.

Claims

1. A side door evacuation device with integrated electric and manual operation, installed in the inner bottom of a car body of a rail vehicle, characterized in that: The evacuation ladder assembly comprises a framework assembly installed under the floor of the vehicle body, a tray assembly and a cover plate assembly arranged on the framework assembly, and a folding ladder assembly arranged on the tray assembly; the cover plate assembly comprises a cover plate and an opening and closing cylinder, the opening and closing cylinder is connected with the cover plate and the framework assembly, and controls the opening and closing of the cover plate; the tray assembly comprises a tray support and a telescopic cylinder, the folding ladder assembly is arranged on the tray support, the tray support is movably connected with the framework assembly, and the telescopic cylinder is connected with the tray support and the framework assembly and controls the movement of the tray support along the framework assembly; the folding ladder assembly comprises a folding ladder, a folding cylinder and a limiting mechanism, one end of the folding cylinder is connected with the folding ladder and the limiting mechanism, and the other end of the folding cylinder is connected with the tray support, the folding cylinder controls the unfolding or folding of the folding ladder along the limiting mechanism, and the first end and the last end of the limiting mechanism are mechanical dead points.

2. The side door evacuation device with integrated electric and manual operation according to claim 1, characterized in that: The cover plate assembly comprises a cover plate, a cover plate support beam and an opening and closing cylinder, the cover plate is connected with the framework assembly through the cover plate support beam, and rotates around the connecting point of the cover plate support beam and the framework assembly, and the opening and closing cylinder is connected with the cover plate support beam and the framework assembly; in the extended state of the opening and closing cylinder, the cover plate is closed and attached to the outer wall of the vehicle body, and in the retracted state, the cover plate is rotated downward to be opened.

3. The side door evacuation device with integrated electric and manual operation according to claim 2, characterized in that: The framework assembly comprises a plurality of track supports arranged in parallel and a reinforcing support arranged between the track supports, the track supports are arranged in the transverse direction of the vehicle body, the tray support is slidably connected with the track support, and the telescopic cylinder is connected with the tray support and the reinforcing support and controls the movement of the tray support along the track support.

4. The side door evacuation device with integrated electric and manual operation according to claim 3, characterized in that: The folding ladder comprises a plurality of parallelogram mechanisms arranged side by side and steps arranged between the parallelogram mechanisms, and the parallelogram mechanisms are movably connected with the tray support.

5. The side door evacuation device with integrated electric and manual operation according to claim 4, characterized in that: The limiting mechanism comprises a straight track arranged on the parallelogram mechanism and an arc-shaped track arranged on the tray support, the folding cylinder is connected with a driving rod and the tray support, and the driving rod is slidably connected with the straight track and the arc-shaped track.

6. The side door evacuation device with integrated electric and manual operation according to claim 5, characterized in that: The driving rod is provided with an operating handle.

7. The side door evacuation device with integrated electric and manual operation according to any one of claims 1 to 6, characterized in that: The locking assembly comprises three locking mechanisms and an unlocking mechanism for unlocking all the locking mechanisms, the three locking mechanisms are respectively arranged at the front end close to the outer wall of the vehicle body, the middle end close to the outer wall of the vehicle body and the rear end away from the outer wall of the vehicle body of the framework assembly, and are respectively denoted as a front end locking mechanism, a middle end locking mechanism and a rear end locking mechanism.

8. The side door evacuation device with integrated electric and manual operation according to claim 7, characterized in that: The cover plate assembly further comprises an opening and closing lock bolt, the opening and closing lock bolt is connected with the front end locking mechanism when the cover plate is closed; the tray support is provided with a telescopic lock bolt, the telescopic lock bolt is connected with the rear end locking mechanism when the folding ladder assembly is retracted, and the telescopic lock bolt is connected with the middle end locking mechanism when the folding ladder assembly is extended.

9. The side door evacuation device with integrated electric and manual operation according to claim 8, characterized in that: The unlocking mechanism comprises an electronic unlocking mechanism and a manual unlocking mechanism, both of which can independently unlock all the locking mechanisms, the electronic unlocking mechanism is connected with the control system of the driver's cabin of the train, and the manual unlocking mechanism is arranged at the position of the side door of the vehicle body.

10. A method of operating a side door evacuation device having an integrated electric and manual operation according to claim 9, characterized in that, The method comprises a manual method and an automatic method: The opening process of the manual method is that the manual unlocking mechanism unlocks all the locking mechanisms, the opening and closing lock pin is separated from the front end locking mechanism, the telescopic lock pin is separated from the rear end locking mechanism, the cover plate is naturally opened under the action of gravity, the evacuation ladder assembly is manually pulled out until the telescopic lock pin is locked with the middle end locking mechanism, and the folding step ladder is manually unfolded until the mechanical dead point at the tail end of the limiting rail is locked; The closing process of the manual method is that the manual unlocking mechanism unlocks all the locking mechanisms, the telescopic lock pin is separated from the middle end locking mechanism, the folding step ladder is manually folded until the mechanical dead point at the head end of the limiting rail is locked, the evacuation ladder assembly is manually pushed in until the telescopic lock pin is locked with the rear end locking mechanism, and the cover plate is manually lifted to close until the opening and closing lock pin is locked with the front end locking mechanism; The opening process of the automatic method is that the automatic unlocking mechanism unlocks all the locking mechanisms, the opening and closing lock pin is separated from the front end locking mechanism, the telescopic lock pin is separated from the rear end locking mechanism, the opening and closing cylinder opens the cover plate, the telescopic cylinder pushes out the evacuation ladder assembly until the telescopic lock pin is locked with the middle end locking mechanism, and the folding cylinder unfolds the folding step ladder until the mechanical dead point at the tail end of the limiting rail is locked; The closing process of the automatic method is that the automatic unlocking mechanism unlocks all the locking mechanisms, the telescopic lock pin is separated from the middle end locking mechanism, the folding cylinder folds the folding step ladder until the mechanical dead point at the head end of the limiting rail is locked, the telescopic cylinder pulls in the evacuation ladder assembly until the telescopic lock pin is locked with the tail end locking mechanism, and the opening and closing cylinder closes the cover plate until the opening and closing lock pin is locked with the front end locking mechanism.

Images