Escape ladder for railway vehicle

Abstract

An escape ladder for a railway vehicle relates to the technical field of urban railway traffic equipment manufacturing, the escape ladder is assembled at the bottom of a bottom plate of the railway vehicle, that is, the escape ladder is shielded by an apron board, the utilization rate of the bottom of the vehicle is improved, the occupancy rate of the escape ladder to the internal space of the vehicle is reduced, and meanwhile, the escape requirement of each carriage can be met; the escape ladder comprises a bottom plate, a first mounting frame is arranged at the bottom, located on one side of a vehicle door, of the bottom plate, 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, and the first driving part is used for driving the mounting plate to slide on the mounting seat so that the mounting plate can slide out of or slide into the position under the bottom plate; a second driving part and a folding ladder are fixedly arranged on the mounting plate, and the second driving part is used for driving the folding ladder to be unfolded.

Description

Technical Field

[0001] This utility model relates to the field of urban rail transit equipment manufacturing technology, specifically to an escape 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 rail vehicle, which connects the flip ladder to the bottom plate of the rail vehicle through a fixing part. The flip 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] Besides the design methods mentioned above, there are two main design modes for escape ladders in rail vehicles. The first is a detachable ladder, which can be flexibly stored inside the car in light rail vehicles, but it occupies the interior space of the car and is not convenient for storage. The second is an inflatable slide, which is more expensive and more difficult to recycle. In summary, there is a need for an escape ladder that can ensure efficient dispersal and will not intrude into the car space. Utility Model Content

[0005] I. Technical problems to be solved

[0006] This utility model addresses the shortcomings of existing technologies by proposing an escape ladder for rail vehicles. The escape ladder is installed at the bottom of the rail vehicle's floor plate, i.e., within the skirt panel, which improves the utilization rate of the vehicle's floor, reduces the occupancy rate of the escape ladder on the vehicle's interior space, and simultaneously meets the escape requirements of each carriage.

[0007] II. Specific Technical Solutions

[0008] An escape ladder for rail vehicles includes a base plate. A first mounting bracket is provided at the bottom of the base plate on the side of the vehicle door. A mounting seat is fixedly provided on the first mounting bracket. A first driving part and a mounting plate are provided on the mounting seat. The first driving part is used to drive the mounting plate to slide on the mounting seat, so that the mounting plate slides out or slides into the bottom plate. A second driving part and a folding ladder are fixedly provided on the mounting plate. The second driving part is used to drive the folding ladder to open.

[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 car, this makes the use of the car space more efficient. Furthermore, escape ladders can be installed at the bottom of each car, effectively improving escape efficiency. When it is necessary to open the escape ladder for escape, the first drive unit will drive the mounting plate to slide out. At this time, the second drive unit will open the folding ladder to allow passengers to escape. The operation is simple and convenient.

[0011] Preferably, the mounting base is provided with a high-strength guide rail, and the side of the mounting plate that connects with the mounting base is provided with a base, which cooperates with the high-strength guide rail. The advantage of this preferred embodiment is that the combination of the high-strength guide rail and the base serves as the main support point of the escape ladder, which has high strength and strong load-bearing capacity, and can meet the load-bearing requirements of the escape ladder during escape.

[0012] Preferably, the first driving unit is a first gas spring, the base end of the first gas spring is hinged to one end of the mounting base; the telescopic end of the first gas spring is hinged to the side of the mounting plate near the mounting base; the beneficial effect of this preferred embodiment is that by using a first gas spring as the first driving unit, it reacts quickly and can deploy the mounting plate and the escape ladder on the mounting plate in response, which can effectively save the opening time of the escape ladder.

[0013] Preferably, a tilting ladder is rotatably connected to the top of the mounting plate; an extension is formed by folding the upper end of the mounting plate toward the mounting seat, and a support seat is fixedly provided at the bottom of the tilting ladder. When the tilting ladder is tilted above the mounting plate, the support seat 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, occupying less space at the bottom of the carriage, ensuring the smooth installation of the escape ladder, and also ensuring its miniaturization.

[0014] Preferably, the top step of the tilting ladder is level with the bottom plate, and a guardrail is provided around the tilting ladder, located on the side away from the folding ladder and the bottom plate. The advantage of this preferred embodiment is that after the tilting ladder is tilted, the top step is level with the bottom plate, which facilitates the transfer of people in the carriage. The guardrail further prevents passengers from slipping out during the transfer, thus improving the safety factor.

[0015] Preferably, the top of the mounting plate is also provided with a telescopic sleeve rod, the outer rod of which is fixedly connected to the rotating part of the tipping ladder; a reducer is provided at the upper end of the mounting base, the output end of which is connected to the inner rod of the telescopic sleeve rod; the inner rod and the outer rod are connected by a spline; the reducer includes an input shaft, which passes through the base plate and has a rotating handwheel at its end; the advantage of this preferred embodiment is that the telescopic sleeve rod allows the mounting plate and the escape ladder to slide out smoothly, and the rotating handwheel is located on one side inside the base plate carriage, so that the tipping ladder can be tipped only inside the carriage, making operation simpler and more convenient.

[0016] Preferably, the folding ladder includes two symmetrically arranged folding sections, with multiple steps between the two corresponding folding sections. Each folding section includes sequentially hinged X-shaped hinges, and the two ends of each step are connected to the corresponding X-shaped hinges. The advantage of this preferred embodiment is that by using X-shaped hinges as the folding ladder, only one X-shaped hinge in each folding section needs to be opened during actual use, making the operation simple and convenient.

[0017] Preferably, a rotating rod is provided at the bottom of the mounting plate, and connecting seats are provided on both sides of the bottom. The two ends of the rotating rod are rotatably connected to the connecting seats, and support rods are fixedly provided at both ends of the rotating rod. The other end of each support rod is fixedly provided at the hinge of the X-shaped hinge. By rotating the support rod, the included angle of the X-shaped hinge can be changed.

[0018] Preferably, the second driving part is a second gas spring, and a connecting rod is fixedly provided in the middle of the rotating rod; the base end of the second gas spring is rotatably connected to the upper part of the mounting plate, and the telescopic end of the second gas spring is hinged to the end of the connecting rod.

[0019] Preferably, the side of the base plate is provided with a skirt and a second mounting bracket, the second mounting bracket being parallel to the first mounting bracket, and one side of the skirt is rotatably connected to the side of the second mounting bracket located at the outer end of the base plate; a third driving part is provided on the second mounting bracket, the third driving part being a third gas spring, and the extension end of the third gas spring being rotatably connected to the skirt.

[0020] The beneficial effects of this utility model are as follows:

[0021] Unlike existing technologies, this solution is located at the bottom of the vehicle body, which improves the utilization of the space at the bottom of the vehicle body and avoids the intrusion of the escape ladder into the passenger compartment, resulting in better space utilization.

[0022] The escape ladder provided by this solution can be opened from the bottom of the car or the side of the car, so that the escape ladder can be installed at the bottom of each car, effectively improving the escape efficiency.

[0023] With the setup of the first drive unit, second drive unit, and third drive unit, the corresponding mounting plates, folding ladders, and skirts can be easily and conveniently opened inside the carriage, making operation simple and convenient.

[0024] By using a flip-top ladder, the height difference between the top of the escape ladder and the bottom plate is greatly reduced, making the escape safer. Attached Figure Description

[0025] Figure 1 This is a side view of the escape ladder for rail vehicles according to this utility model.

[0026] Figure 2 This is a front view of the escape ladder for rail vehicles according to this utility model.

[0027] Figure 3 This is an isometric drawing of the escape ladder for rail vehicles according to this utility model.

[0028] Figure 4 This is a top view of the escape ladder for rail vehicles of this utility model without a base plate.

[0029] Explanation of reference numerals in the attached figures:

[0030] Base plate 100, first mounting bracket 101, mounting seat 102, first drive unit 103, mounting plate 104, second drive unit 105, folding ladder 106, high-strength guide rail 107, base 108, tilting ladder 109, support seat 110, guardrail 111, extension 112, outer rod 113, reducer 114, inner rod 115, rotating handwheel 116, folding section assembly 117, pedal 118, X-shaped hinge 119, rotating rod 120, connecting seat 121, support rod 122, connecting rod 123, skirt 124, second mounting bracket 125, third drive unit 126. Detailed Implementation

[0031] 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.

[0032] like Figure 1-4 As shown:

[0033] An escape ladder for a rail vehicle includes a base plate 100, specifically, the base plate 100 is the floor inside the car. A first mounting bracket 101 is welded or bolted to the lower left side of the base plate 100 at the car door location. A mounting seat 102 is provided on the left side of the first mounting bracket 101 by welding or bolting. Figure 1 and Figure 2 The mounting base 102 is provided with a first drive unit 103 and a mounting plate 104. Specifically, the first drive unit 103 is a first gas spring, the mounting end of which is hinged to the mounting base 102, and the telescopic end of which is hinged to the back side of the mounting plate 104. High-strength guide rails 107 are provided on both the upper and lower sides of the mounting base 102. The high-strength guide rails 107 are high-strength linear guide rails. A base 108 is welded to the side of the mounting plate 104 that is connected to the mounting base 102. In practice, the base 108 cooperates with the high-strength guide rails 107. In practice, the first drive unit 103 can effectively drive the mounting plate 104 to slide along the high-strength guide rails 107, thereby allowing the mounting plate 104 to slide from the bottom of the base plate 100 to one side of the base plate 100. In practice, the mounting plate 104 is also provided with a second drive unit 105 and a folding ladder 106. The second drive unit 105 is used to drive the folding ladder 106 to open.

[0034] In its implementation, this solution involves first assembling the escape ladder as a whole at the bottom of the base plate 100. When personnel need to be transferred using the escape ladder, the mounting plate 104 is slid out by the first drive unit 103. At this time, the mounting plate 104 is located on one side of the base plate 100. Then, the folding ladder 106 is opened by the second drive unit 105, allowing people in the carriage to be transferred directly through the folding ladder. The advantage of this is that it can effectively improve the utilization rate of the space at the bottom of the rail vehicle. Compared with the existing method of placing it inside the carriage, it makes the utilization rate of the rail vehicle carriage space greater. Moreover, escape ladders can be installed at the bottom of each carriage, which can effectively improve the escape efficiency.

[0035] In specific implementation, such as Figure 1A tilting ladder 109 is hinged to the top left side of the mounting plate 104. When not in use, the step surface of the tilting ladder 109 is located on the right side of the mounting plate 104. This reduces space utilization and makes the use of the escape ladder smoother. When the tilting ladder 109 is actually in use, the uppermost step surface of the tilting ladder 109 is flush with the base plate 100. To improve the support strength of the tilting ladder 109, the upper left end of the mounting plate 104 is folded towards the side where the mounting seat 102 is located to form an extension 112. The bottom of the tilting ladder 109 is integrally formed with a support seat 110. When the tilting ladder 109 is tilted above the mounting plate 104, the support seat 110 abuts against the extension 112. This provides strong support for the tilting ladder 109 and meets the escape strength requirements of passengers.

[0036] In practice, to further enhance safety, the top step of the tilting ladder 109 is level with the base plate 100. This effectively reduces the difficulty of transport caused by the height difference between the tilting ladder 109 and the base plate 100. In addition, a guardrail 111 is installed around the tilting ladder 109. Specifically, the guardrail 111 is installed on the side away from the folding ladder 106 and the base plate 100. This provides good protection while ensuring that escape is not hindered.

[0037] In specific implementation, such as Figure 2 To better ensure the flipping effect and improve the ease of flipping, a telescopic sleeve rod is installed on the top of the mounting plate 104 via bearings. The outer rod 113 of the telescopic sleeve rod is fixedly connected to the rotating part of the flipping ladder 109. A reducer 114 is provided at the upper end of the mounting base 102. The output end of the reducer 114 is connected to the inner rod 115 of the telescopic sleeve rod. The inner rod 115 and the outer rod 113 are connected by a spline. The reducer 114 also includes an input shaft that passes through the base plate 100 and has a rotating handwheel 116 at its end. In practice, the rotating handwheel 116 can also be provided at another location on the chassis, but a chain or other connection method is required to drive the input shaft to rotate. The advantage of this is that the telescopic sleeve rod facilitates the sliding out of the mounting plate 104 and the folding ladder 106, and the spline connection between the inner rod 115 and the outer rod 114 of the telescopic sleeve rod allows the inner rod 115 to be driven to rotate by rotating the handwheel, thereby realizing the flipping of the flipping ladder 109.

[0038] In specific implementation, such as Figure 3The folding ladder 106 includes two symmetrically arranged folding section groups 117. Multiple steps 118 are welded or threaded between the two corresponding folding section groups 102. Each folding section group 117 includes X-shaped hinge members 119 that are hinged in sequence. The two ends of the steps 118 are respectively connected to the X-shaped hinge members 119 at the corresponding positions. Using X-shaped hinge members as the smallest component of the folding ladder 106, the folding length of the folding ladder 106 can be changed by simply changing the included angle of a set of X-shaped hinge members 119, making the operation simple and convenient.

[0039] In specific implementation, a rotating rod 120 is rotatably connected to the bottom of the mounting plate 104 via bearings, and connecting seats 121 are provided on both sides of the bottom. The connecting seats 121 are specifically used for bearing installation. The two ends of the rotating rod 120 are rotatably connected to the connecting seats 121, and support rods 122 are welded to the two ends of the rotating rod 120. The other ends of the support rods 122 are fixedly mounted on the X-shaped hinges. By pushing the support rods 122, the folding section group 117 in the folding ladder 106 can be opened. In specific implementation, the second drive unit 105 is a second gas spring, and a connecting rod 123 is fixedly mounted in the middle of the rotating rod 120. The base end of the second gas spring is rotatably connected to the upper part of the mounting plate 104, and the telescopic end of the second gas spring is hinged to the end of the connecting rod 123. The purpose of this arrangement is that by the extension and retraction of the second gas spring, the connecting rod 123 can be driven to rotate around the connecting seat 121, thereby causing the support rod 122 to drive the folding ladder to open, which is simple and quick.

[0040] In specific implementation, such as Figure 4 To ensure the stability of the escape ladder and the consistency of the rail vehicle's appearance, the escape ladder will be assembled and sealed to the bottom of the vehicle body, and will also be sealed by a skirt panel. In this design, a skirt panel 124 and a second mounting bracket 125 are provided on the side of the base plate 100. The second mounting bracket 125 is parallel to the first mounting bracket 101. One side of the skirt panel 124 is rotatably connected to the side of the second mounting bracket 125 located at the outer end of the base plate 100. A third drive unit 126 is provided on the second mounting bracket 125. The third drive unit 126 is a third gas spring. The extension end of the third gas spring is rotatably connected to the skirt panel 124. In this way, the skirt panel can be directly pushed open when the escape ladder needs to be used, facilitating the use of the escape ladder. It is worth noting that the control ends or button ends of the first drive unit 103, the second drive unit 105, and the third drive unit 126 are all located in the same position as the handwheel. The advantage of this is that the escape ladder can be quickly driven and used inside the vehicle, making operation simple, convenient, and with a high safety factor.

[0041] 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. An escape 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) on the side of the door. A mounting seat (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 seat (102). The first driving part (103) is used to drive the mounting plate (104) to slide on the mounting seat (102), so that the mounting plate (104) slides out or slides into the bottom plate (100). A second driving part (105) and a folding ladder (106) are fixedly provided on the mounting plate (104). The second driving part (105) is used to drive the folding ladder (106) to open.

2. The escape ladder for rail vehicles according to claim 1, characterized in that: The mounting base (102) is provided with a high-strength guide rail (107), and the mounting plate (104) is provided with a base (108) on the side that is connected to the mounting base (102), and the base (108) cooperates with the high-strength guide rail (107).

3. The escape ladder for rail vehicles according to claim 2, 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); 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 escape ladder for rail vehicles according to claim 1, characterized in that: The top of the mounting plate (104) is rotatably connected to a tilting ladder (109); the upper end of the mounting plate (104) is folded towards the mounting base (102) to form an extension (112), and a support base (110) is fixedly provided at the bottom of the tilting ladder (109). When the tilting ladder (109) is flipped to the top of the mounting plate (104), the support base (110) abuts against the extension (112).

5. The escape ladder for rail vehicles according to claim 4, characterized in that: The uppermost step of the flip ladder (109) is level with the base plate (100). A guardrail (111) is also provided around the flip ladder (109). The guardrail (111) is located on the side away from the folding ladder (106) and away from the base plate (100).

6. The escape ladder for rail vehicles according to claim 4, characterized in that: The top of the mounting plate (104) is also provided with a telescopic sleeve rod, the outer rod (113) of the telescopic sleeve rod is fixedly connected to the rotating part of the tilting ladder (109); the upper end of the mounting base (102) is provided with a reducer (114), the output end of the reducer (114) is connected to the inner rod (115) of the telescopic sleeve rod; the inner rod (115) and the outer rod (113) are connected by a spline; the reducer (114) includes an input shaft, the input shaft passes through the base plate (100) and a rotating handwheel (116) is provided at the end of the input shaft.

7. The escape ladder for rail vehicles according to claim 1, characterized in that: The folding ladder (106) includes two symmetrically arranged folding segments (117), and multiple steps (118) are arranged between the two corresponding folding segments (117). Each folding segment (117) includes X-shaped hinges (119) that are hinged in sequence. The two ends of the steps (118) are respectively connected to the X-shaped hinges (119) at the corresponding positions.

8. The escape ladder for rail vehicles according to claim 7, characterized in that: A rotating rod (120) is provided at the bottom of the mounting plate (104), and connecting seats (121) are provided on both sides of the bottom. The two ends of the rotating rod (120) are rotatably connected in the connecting seats (121), and support rods (122) are fixedly provided at both ends of the rotating rod (120). The other end of the support rods (122) is fixedly provided at the hinge of the X-shaped hinge (119).

9. The escape ladder for rail vehicles according to claim 8, characterized in that: The second drive unit (105) is a second gas spring, and a connecting rod (123) is fixedly provided in the middle of the rotating rod (120); the base end of the second gas spring is rotatably connected to the upper part of the mounting plate (104), and the telescopic end of the second gas spring is hinged to the end of the connecting rod (123).

10. The escape ladder for rail vehicles according to claim 1, characterized in that: The base plate (100) is provided with a skirt plate (124) and a second mounting bracket (125) on its side. The second mounting bracket (125) is parallel to the first mounting bracket (101). One side of the skirt plate (124) is rotatably connected to the side of the second mounting bracket (125) located at the outer end of the base plate (100). A third driving part (126) is provided on the second mounting bracket (125). The third driving part (126) is a third gas spring. The extension end of the third gas spring is rotatably connected to the skirt plate (124).

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