Turnover connecting ladder for railway vehicle

Abstract

A turnover connecting ladder for a rail vehicle relates to the technical field of urban rail transit equipment manufacturing, can well reduce the height difference between the position of a rail vehicle door and an escape ladder and improve the safety coefficient, and comprises a bottom plate, a first mounting frame is arranged at the bottom of the bottom plate, and a mounting seat is fixedly arranged on the first mounting frame; a first driving part and a mounting plate are arranged on the mounting seat, the mounting plate is slidably connected to the mounting seat through a linear guide rail, and the first driving part is used for driving the mounting plate to slide on the mounting seat through the linear guide rail; the first driving part is used for driving the mounting plate to slide on the mounting seat, so that the mounting plate slides out of or into the lower part of the bottom plate; a folding ladder and a second driving part are further arranged on the mounting plate, and the second driving part is used for driving the folding ladder to be unfolded; the top of the mounting plate is rotationally connected with an overturning ladder, the top of the overturning ladder is connected with the bottom plate after the overturning ladder is overturned, and the bottom of the overturning ladder is connected with the top of the folding ladder.

Description

Technical Field

[0001] This utility model relates to the field of urban rail transit equipment manufacturing technology, specifically to a tilting connecting ladder for rail vehicles. Background Technology

[0002] Safety equipment is an essential component in the production and research and development of rail vehicles, and its development has become a hot topic. Among them, escape ladders are an indispensable part of safety equipment. In the event of an emergency in a rail vehicle, escape ladders can provide an escape route for passengers and crew to evacuate quickly, and can also operate smoothly in an emergency.

[0003] The utility model application with application number CN202220740445.3 discloses an escape ladder and a rail vehicle. The escape ladder is connected to the bottom plate of the rail vehicle through a fixing part. The escape ladder can switch between the first position and the second position of the rail vehicle, thereby achieving the effect of convenient operation and easy storage. The disadvantage is that it can only be installed at the end, which is not convenient for passengers in other carriages to transfer.

[0004] However, the escape ladder still has other drawbacks. It is only suitable for rail vehicles with a small number of carriages or passengers. If there are many passengers, it will cause a large number of passengers to concentrate at the rear of the rail vehicle, which is not conducive to evacuation. Based on this, it is possible to install the escape ladder at the bottom of each carriage. However, there is a height difference between the bottom of the carriage and the door position, which poses a safety hazard. Utility Model Content

[0005] I. Technical problems to be solved

[0006] This invention addresses the shortcomings of existing technologies by proposing a flip-up connecting ladder for rail vehicles, which can effectively reduce the height difference between the rail vehicle door and the escape ladder, thereby improving the safety factor.

[0007] II. Specific Technical Solutions

[0008] A tilting connecting ladder for rail vehicles includes a base plate, a first mounting frame at the bottom of the base plate, a mounting seat fixedly mounted on the first mounting frame, a first driving part and a mounting plate mounted on the mounting seat, the mounting plate being slidably connected to the mounting seat via a linear guide rail, the first driving part driving the mounting plate to slide on the mounting seat via the linear guide rail; the first driving part driving the mounting plate to slide on the mounting seat, causing the mounting plate to slide out or slide under the base plate; the mounting plate is also provided with a folding ladder and a second driving part, the second driving part driving the folding ladder to open; a tilting ladder is rotatably connected to the top of the mounting plate, the tilting ladder, after being tilted, has its top connected to the base plate and its bottom connected to the top of the folding ladder.

[0009] Implementation principle and working principle:

[0010] In this design, the escape ladder is integrated into the bottom of the base plate, improving the utilization rate of the space under the rail vehicle. Compared with the existing method of placing it inside the carriage, this makes the use of the carriage space more efficient. Furthermore, escape ladders can be installed at the bottom of each carriage, effectively improving escape efficiency. When the escape ladder needs to be opened for escape, since it is located below the base plate, there will be a height difference between the escape ladder and the base plate when it is opened. After the escape ladder is flipped, its top connects to the base plate, and its bottom connects to the top of the folding ladder, which effectively reduces the height difference and improves the safety factor. The use of linear guide rails provides extremely strong load-bearing capacity, enabling multiple passengers to escape simultaneously.

[0011] Preferably, the flip ladder is provided with multiple steps. After the flip ladder is flipped, the upper surface of the top step is flush with the base plate, and the bottom of the bottom step is connected to the top of the folding ladder. The advantage of this preferred embodiment is that, through the height settings of the multiple steps and the flip ladder itself, the height difference between the base plate and the folding ladder can be effectively eliminated, resulting in better safety.

[0012] Preferably, the first drive unit is a first gas spring, the base end of the first gas spring is hinged to one end of the mounting base, and the telescopic end of the first gas spring is hinged to the side of the mounting plate near the mounting base. The advantage of this preferred embodiment is that, by setting the first gas spring, the mounting plate can be quickly ejected, and the escape ladder can be opened faster.

[0013] Preferably, the upper end of the mounting plate is folded towards the side where the mounting base is located to form an extension, and a support base is fixedly provided at the bottom of the tilting ladder. When the tilting ladder is tilted above the mounting plate, the support base abuts against the extension. The beneficial effect of this preferred embodiment is that the extension formed on the mounting plate can support the tilting ladder, making the tilting ladder stronger and having a greater load-bearing capacity. In particular, due to the setting of the tilting ladder, the height difference between the bottom plate and the upper end of the folding ladder is greatly reduced, effectively improving the safety factor. When the tilting ladder is not in use, it is located on the bottom plate, which occupies less space at the bottom of the carriage, ensuring the smooth installation of the escape ladder and also ensuring its miniaturization.

[0014] Preferably, the tilting ladder is rotatably connected to the top of the mounting plate via a telescopic mounting sleeve shaft; a reducer is provided on the mounting base, the output end of the reducer is connected to the inner shaft of the telescopic mounting sleeve shaft, and one end of the tilting ladder is fixedly connected to the outer shaft of the telescopic mounting sleeve shaft; a third drive unit is provided at the input end of the reducer; the reducer includes an input shaft, the end of which passes through the base plate; the third drive unit is at least one of a drive handwheel or a drive motor, and the third drive unit is used to drive the input shaft to rotate.

[0015] Preferably, the folding ladder is formed by sequentially hinged multiple sets of X-shaped hinges, with a step in the middle of each set of X-shaped hinges; a rotating rod is rotatably connected to the bottom of the mounting plate, and support rods are fixedly installed at both ends of the rotating rod, with the ends of the support rods hinged to the hinge points of the X-shaped hinges; a connecting rod is fixedly installed in the middle of the rotating rod; the second driving part is a second gas spring, one end of which is hinged to the mounting plate, and the other end of which is connected to the other end of the connecting rod.

[0016] The beneficial effects of this utility model are as follows:

[0017] When an escape ladder is needed for actual evacuation, there will be a height difference between it and the base plate because the escape ladder is located below the base plate. After the escape ladder is opened, its top connects to the base plate and its bottom connects to the top of the folding ladder, which effectively reduces the height difference and improves the safety factor. The use of linear guide rails has extremely strong load-bearing capacity and can carry multiple passengers to escape at the same time. Attached Figure Description

[0018] Figure 1 This is a side view of an embodiment of the present utility model.

[0019] Figure 2 This is a front view of an embodiment of the present utility model.

[0020] Figure 3 This is an isometric view of an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] Base plate 100, first mounting bracket 101, mounting base 102, first drive unit 103, mounting plate 104, folding ladder 105, second drive unit 106, tilting ladder 107, steps 108, extension part 109, support base 110, telescopic mounting sleeve shaft 111, reducer 112, third drive unit 113, X-shaped hinge 114, pedal 115, rotating rod 116, support rod 117, connecting rod 118, linear guide rail 119. Detailed Implementation

[0023] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0024] As shown in the figure:

[0025] A tilting connecting ladder for rail vehicles includes a base plate 100. A first mounting bracket 101 is welded or threaded to the bottom of the base plate 100. A mounting seat 102 is bolted to the first mounting bracket 101. A mounting plate 104 is slidably connected to the mounting seat via a guide rail 119. A first drive unit 103 is also hinged to the mounting seat. The first drive unit 103 is a first gas spring. The base end of the first gas spring 103 is hinged to the mounting seat, and the extension end of the first gas spring is hinged to the side of the mounting plate 104 near the mounting seat. The first drive unit 103 drives the mounting plate 104 to move along the linear guide rail 119 onto the mounting seat. The mounting plate 104, i.e., the folding ladder 105, slides out or into the bottom plate 100 by sliding upwards from the mounting plate 102. The folding ladder 105 is fixed to the mounting plate 104. The mounting plate 104 can be quickly popped out or slid out by the first gas spring, making the escape ladder open faster. A flip ladder 107 is hinged to the top of the mounting plate 104. After flipping, the top of the flip ladder 107 is connected to the bottom plate 100, and its bottom is connected to the top of the folding ladder 105. Specifically, a second drive unit 106 is provided on the mounting plate 105. The second drive unit 106 is specifically used to open the folding ladder 105.

[0026] In specific implementation, multiple steps 108 are provided on the flip ladder 107. In this embodiment, there are two steps 108. After the flip ladder 107 flips, the upper surface of the top step 108 is flush with the base plate 100, and the bottom of the bottom step 108 is connected to the top of the folding ladder 105. By setting the height of the multiple steps 108 and the flip ladder 107 itself, the height difference between the base plate 100 and the folding ladder 105 can be effectively eliminated, resulting in better safety.

[0027] In specific implementation, the upper end of the mounting plate 104 is integrally formed with an extension 109 facing left, and the bottom of the tilting ladder 107 is fixedly provided with a support base 110. When the tilting ladder 107 is tilted above the mounting plate 104, the support base 110 abuts against the extension. The extension 109 formed on the mounting plate 104 can support the tilting ladder 107, making the tilting ladder 107 stronger and more load-bearing. In particular, due to the setting of the tilting ladder 107, the height difference between the bottom plate 100 and the upper end of the folding ladder 105 is greatly reduced, effectively improving the safety factor. When the tilting ladder 107 is not in use, it is located on the bottom plate 100, which occupies less space at the bottom of the car, ensuring the smooth installation of the escape ladder and also ensuring its miniaturization.

[0028] In specific implementation, the tilting ladder 107 is rotatably connected to the top of the mounting plate 104 via the telescopic mounting sleeve shaft 111; a reducer 112 is provided on the mounting base 102, the reducer 112 includes an input shaft and an output end, the output end is connected to the inner shaft of the telescopic mounting sleeve shaft 111, one end of the tilting ladder 107 is fixedly connected to the outer shaft of the telescopic mounting sleeve shaft 111, and the inner and outer shafts of the telescopic mounting sleeve shaft 111 are connected by a spline for transmission; a third drive unit 113 is provided at the input end of the reducer 112; the end of the input shaft passes through the base plate 100; the third drive unit 113 is at least one of a drive handwheel or a drive motor, and the third drive unit 113 is used to drive the input shaft to rotate, thereby effectively driving the input shaft and the telescopic mounting sleeve shaft 111 to rotate.

[0029] In specific implementation, the folding ladder 105 is formed by multiple sets of X-shaped hinges 114 connected in sequence, with a step 115 in the middle of each set of X-shaped hinges 114; a rotating rod 116 is hinged to the bottom of the mounting plate 104, and support rods 117 are welded to both ends of the rotating rod 116, with the ends of the support rods 117 hinged to the hinge points of the X-shaped hinges; a connecting rod 116 is welded to or integrally formed in the middle of the rotating rod 116; the second drive unit 106 is a second gas spring, with one end of the second gas spring 106 hinged to the mounting plate 104 and the other end of the second gas spring connected to the other end of the connecting rod 116.

[0030] The beneficial effects of this utility model are as follows:

[0031] When it is actually necessary to open the escape ladder for escape, since the escape ladder is located below the base plate 100, there will be a height difference between the folding ladder 105 and the base plate 100 when it is opened. At this time, by opening the tilting ladder and flipping it, its top connects with the base plate 100 and its bottom connects with the top of the folding ladder 105, which effectively reduces the height difference and improves the safety factor. The linear guide rail 119 is used, which has a very strong load-bearing capacity and can carry multiple passengers to escape at the same time. The switches of the first drive unit 103 and the second drive unit 106 in this solution are both inside the base plate and can be directly driven in the car, which is simple and convenient.

[0032] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims.

Claims

1. A tilting connecting ladder for rail vehicles, comprising a base plate (100), characterized in that: A first mounting bracket (101) is provided at the bottom of the base plate (100). A mounting base (102) is fixedly provided on the first mounting bracket (101). A first driving part (103) and a mounting plate (104) are provided on the mounting base (102). The mounting plate (104) is slidably connected to the mounting base (102) via a linear guide rail (119). The first driving part (103) is used to drive the mounting plate (104) to move along the linear guide rail (119) on the mounting base (100). 2) Slide upwards, so that the mounting plate (104) slides out or slides into the bottom plate (100); the mounting plate (104) is also provided with a folding ladder (105) and a second drive unit (106), the second drive unit (106) is used to drive the folding ladder (105) to open; the top of the mounting plate (104) is rotatably connected to a flip ladder (107), after the flip ladder (107) flips, its top is connected to the bottom plate (100), and its bottom is connected to the top of the folding ladder (105).

2. The tilting connecting ladder for rail vehicles according to claim 1, characterized in that: The flip ladder (107) is provided with multiple steps (108). After the flip ladder (107) is flipped, the upper surface of the top step is flush with the base plate (100), and the bottom of the bottom step is connected to the top of the folding ladder (105).

3. The tilting connecting ladder for rail vehicles according to claim 1, characterized in that: The first drive unit (103) is a first gas spring. The base end of the first gas spring is hinged to one end of the mounting base (102), and the telescopic end of the first gas spring is hinged to the side of the mounting plate (104) near the mounting base (102).

4. The tilting connecting ladder for rail vehicles according to claim 1, characterized in that: The upper end of the mounting plate (104) is folded towards the side where the mounting base (102) is located to form an extension (109). The bottom of the tilting ladder (107) is fixedly provided with a support base (110). When the tilting ladder (107) is flipped to the top of the mounting plate (104), the support base (110) abuts against the extension (109).

5. The tilting connecting ladder for rail vehicles according to claim 1, characterized in that: The tilting ladder (107) is rotatably connected to the top of the mounting plate (104) via a telescopic mounting sleeve shaft (111); a reducer (112) is provided on the mounting base (102), the output end of the reducer (112) is connected to the inner shaft of the telescopic mounting sleeve shaft (111), and one end of the tilting ladder (107) is fixedly connected to the outer shaft of the telescopic mounting sleeve shaft (111); a third drive unit (113) is provided at the input end of the reducer (112); the inner shaft and the outer shaft are splined.

6. The tilting connecting ladder for rail vehicles according to claim 5, characterized in that: The reducer (112) includes an input shaft, the end of which passes through the base plate; the third drive unit (113) is at least one of a drive handwheel or a drive motor, and the third drive unit (113) is used to drive the input shaft to rotate.

7. The tilting connecting ladder for rail vehicles according to claim 1, characterized in that: The folding ladder (105) is formed by multiple sets of X-shaped hinges (114) hinged together in sequence, and a step (115) is provided in the middle of each set of X-shaped hinges (114); a rotating rod (116) is rotatably connected to the bottom of the mounting plate (104), and a support rod (117) is fixedly provided at both ends of the rotating rod (116). The end of the support rod (117) is hinged to the hinge of the X-shaped hinge (114); a connecting rod (118) is fixedly provided in the middle of the rotating rod (116); the second driving part (106) is a second gas spring, one end of the second gas spring is hinged to the mounting plate (104), and the other end of the second gas spring is connected to the other end of the connecting rod (118).

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