Movable maintenance ladder for freight train

Abstract

The utility model provides a mobile maintenance ladder for a freight train, which relates to the field of maintenance ladders, and adopts the technical scheme that the mobile maintenance ladder comprises a ladder, two hooks are arranged at the upper end of the ladder, the hooks can be hung on T-shaped steel of a side plate of a train platform, a supporting column is further arranged on the ladder, and the supporting column is connected with the ladder. And the end part of the supporting column can be supported on the side plate of the train platform and is positioned at the lower part of the T-shaped steel. The portable safety helmet is high in safety, small in size and convenient to carry.

Description

Technical Field

[0001] The utility model relates to the field of train maintenance ladders, in particular to a mobile maintenance ladder used for freight trains. Background Art

[0002] Train maintenance ladders are commonly used auxiliary equipment during railway track maintenance operations. Their primary function is to provide maintenance personnel with a safe and stable access path for boarding and alighting, enabling them to more conveniently and efficiently inspect, repair, and maintain freight trains. Train maintenance ladders are available in two types: fixed and mobile. Fixed ladders are installed outside the train compartment and do not move. Mobile ladders are commonly used on container trains or bulk cargo trains with load platforms. One end of the mobile ladder rests on the train platform, while the other end is supported on the ground.

[0003] In the prior art, in order to ensure that the mobile maintenance ladder can be firmly supported on the train platform, anti-slip pads and other structures are provided at the supporting end thereof and the ground to increase the friction with the ground and prevent the maintenance ladder from tilting under the dynamic load of the maintenance personnel. Some mobile maintenance ladders are also provided with a horizontal rod or a horizontal plate at the end where the ladder overlaps with the train platform to increase the contact area with the train platform and further prevent tilting.

[0004] However, due to the uneven ground, the mobile maintenance ladder using the above technical solution has the problem that the anti-slip structure of the two legs cannot completely fit the ground, and after loading, the edge space of the train platform is small, making it difficult to use longer horizontal rods or horizontal boards. Therefore, the mobile maintenance ladder still has certain safety risks. In addition, the maintenance ladder is large in size and heavy in weight, which is not convenient for maintenance personnel to carry. Utility Model Content

[0005] In order to solve the technical problems in the above-mentioned prior art that the mobile maintenance ladder has low safety and is not easy to carry, the utility model provides a mobile maintenance ladder for freight trains, which has high safety, small size and is easy to carry.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a mobile maintenance ladder for freight trains, comprising a ladder, two hooks are provided at the upper end of the ladder, and the hooks can be hooked on the T-steel of the train platform side panel. The ladder is also provided with a support column, and the end of the support column can be supported on the train platform side panel and is located at the lower part of the T-steel.

[0007] The utility model can support the upper part of the maintenance ladder on the side panel of the train platform by arranging hooks and support columns. On the one hand, when the maintenance personnel climb, the dynamic load causes the support columns to increase the force acting on the side panel, and the maintenance ladder is hung more firmly. On the other hand, since it does not need to be supported on the ground, the ladder can be shorter than the maintenance ladder supported on the ground, which shortens the size of the ladder, reduces the weight of the ladder, and is easy to carry.

[0008] Furthermore, the ladder includes two columns, a plurality of stepping rods are arranged between the two columns, and two supporting columns are provided and are respectively vertically arranged on the corresponding columns.

[0009] The utility model ensures that the maintenance ladder is more stably supported on the side plate by arranging two supporting columns.

[0010] Furthermore, a reinforcing rod is connected between the two support columns.

[0011] The utility model can prevent the two supporting columns from being deformed by force by arranging the reinforcing plate, thereby improving the supporting strength of the maintenance ladder.

[0012] Furthermore, the reinforcing rod is in an L-shaped structure, and the edge of the reinforcing rod can abut against the side panel of the train platform.

[0013] The utility model can increase the contact area between the maintenance ladder and the side plate by arranging the reinforcing rod of the L-shaped structure, thereby further increasing the support stability.

[0014] Furthermore, the upper edge of the reinforcing rod is higher than the supporting column.

[0015] Furthermore, the upright column, the pedal rod and the support column are all made of galvanized steel pipes.

[0016] Furthermore, a mounting rod is provided at the upper end of the ladder, and the hook is connected to the mounting rod and the stepping rod of the ladder.

[0017] It can be seen from the above technical solutions that the present invention has the following advantages:

[0018] The utility model provides a mobile maintenance ladder for freight trains, which can support the upper part of the maintenance ladder on the side panels of the train platform by arranging hooks and support columns. On the one hand, when maintenance personnel climb, the dynamic load causes the support columns to increase the force acting on the side panels, and the maintenance ladder is hung more firmly. On the other hand, since it does not need to be supported on the ground, the ladder can be shorter than the maintenance ladder supported on the ground, which shortens the size of the ladder, reduces the weight of the ladder, and is easy to carry; by arranging two support columns, it is ensured that the maintenance ladder is more stably supported on the side panels; by arranging reinforcement plates, the two support columns can be prevented from being deformed by force, thereby improving the supporting strength of the maintenance ladder; by arranging reinforcement rods with an L-shaped structure, the contact area between the maintenance ladder and the side panels can be increased, further increasing the supporting stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of a specific implementation method of the present invention.

[0021] Figure 2 This is a structural diagram of a second specific implementation method of the present utility model.

[0022] Figure 3 This is a schematic diagram of the connection between the second specific embodiment of the present invention and the train platform.

[0023] In the figure, 1. column; 2. pedal rod; 3. support column; 4. installation rod; 5. hook; 6. reinforcement rod; 7. ground; 8. train platform; 9. T-steel. DETAILED DESCRIPTION

[0024] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent. Specific implementation method 1

[0026] like Figure 1As shown, this specific embodiment provides a mobile maintenance ladder for freight trains, including a ladder, two hooks 5 are provided at the upper end of the ladder, and the hooks 5 can be hung on the T-shaped steel 9 of the side panel of the train platform 8. Specifically, a mounting rod 4 is provided at the upper end of the ladder, and the hook 5 is connected to the mounting rod 4 and the stepping rod 2 of the ladder. A support column 3 is also provided on the ladder, and the end of the support column 3 can be supported on the side panel of the train platform 8 and is located at the lower part of the T-shaped steel 9.

[0027] This specific embodiment enables the upper part of the maintenance ladder to be supported on the side panel of the train platform 8 by providing a hook 5 and a support column 3. On the one hand, when the maintenance personnel climb, the dynamic load causes the support column 3 to increase the force on the side panel, and the maintenance ladder is hung more firmly. On the other hand, since it does not need to be supported on the ground 7, the ladder can be shorter than the maintenance ladder supported on the ground 7, shortening the size of the ladder, reducing the weight of the ladder, and making it easy to carry. In addition, this maintenance ladder is directly hung using the T-shaped steel 9 on the side panel for fixing the reinforcement rope, which is easy to use and firmly hung.

[0028] like Figure 1 As shown, in this specific embodiment, the ladder includes two columns 1, a plurality of pedal rods 2 are arranged between the two columns 1, two support columns 3 are provided and are respectively vertically arranged on the corresponding columns 1. By setting two support columns 3, it is ensured that the maintenance ladder is more stably supported on the side panel.

[0029] like Figure 1 As shown, preferably, in order to prevent the support column 3 from being deformed after long-term use, in this specific embodiment, a reinforcing rod 6 is connected between the two support columns 3. The reinforcing rod 6 is a cylindrical structure, and the end of the support column 3 directly abuts the side panel of the train platform 8.

[0030] like Figure 1 As shown, the upright column 1, the pedal rod 2 and the support column 3 are all made of galvanized steel pipes, and all connections are made by welding. Specific implementation method 2

[0032] like Figure 2 and Figure 3 As shown, the structure of this specific embodiment is basically the same as that of specific embodiment one, with the difference being that the reinforcing rod 6 is in an L-shaped structure, the edge of the reinforcing rod 6 can abut against the side panel of the train platform 8, the end of the support column 3 is welded to the end of the reinforcing plate, and the end of the support column 3 does not directly contact the surface of the side panel, but contacts the side panel through the reinforcing plate; this specific embodiment can increase the contact area between the maintenance ladder and the side panel by setting the L-shaped reinforcing rod 6, thereby avoiding the slippage of the maintenance ladder and further increasing the support stability.

[0033] like Figure 2 and Figure 3As shown, in order to be suitable for train platforms 8 of different heights, the upper edge of the reinforcing rod 6 is higher than the supporting column 3, so that when the height of the train platform 8 changes, the supporting column 3 can still act on the side panel of the train platform 8 through the upper edge of the reinforcing rod 6.

[0034] From the above specific embodiments, it can be seen that the present invention has the following beneficial effects:

[0035] 1. By providing the hook 5 and the support column 3, the upper part of the maintenance ladder can be supported on the side panel of the train platform 8. On the one hand, when the maintenance personnel climb, the dynamic load causes the support column 3 to increase the force acting on the side panel, and the maintenance ladder is hung more firmly. On the other hand, since it does not need to be supported on the ground 7, the ladder can be shorter than the maintenance ladder supported on the ground 7, which shortens the size of the ladder, reduces the weight of the ladder, and is easier to carry. By providing two support columns 3, the maintenance ladder is more stably supported on the side panel.

[0036] 2. The reinforcement plate can prevent the two support columns 3 from being deformed by force, thereby improving the support strength of the maintenance ladder;

[0037] 3. The L-shaped reinforcement rod 6 can increase the contact area between the maintenance ladder and the side plate, further increasing the support stability;

[0038] 4. By arranging the edge of the reinforcing rod 6 higher than the supporting column 3, it can be adapted to train platforms 8 of various heights.

[0039] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mobile maintenance ladder for a freight train, comprising a ladder, characterized in that: Two hooks (5) are provided at the upper end of the ladder, and the hooks (5) can be hooked on the T-shaped steel of the train platform side panel. The ladder is also provided with a support column (3), and the end of the support column (3) can be supported on the train platform side panel and is located below the T-shaped steel.

2. The mobile maintenance ladder for freight trains according to claim 1, characterized in that: The ladder comprises two upright posts (1), a plurality of pedal rods (2) are arranged between the two upright posts (1), and two support posts (3) are provided and are respectively and vertically arranged on corresponding upright posts (1).

3. The mobile maintenance ladder for freight trains according to claim 2, characterized in that: A reinforcing rod (6) is connected between the two support columns (3).

4. The mobile maintenance ladder for freight trains according to claim 3, characterized in that: The reinforcing rod (6) has an L-shaped structure, and the edge of the reinforcing rod (6) can abut against the side panel of the train platform.

5. The mobile maintenance ladder for freight trains according to claim 4, characterized in that: The upper edge of the reinforcing rod (6) is higher than the supporting column (3).

6. The mobile maintenance ladder for freight trains according to any one of claims 2 to 5, characterized in that: The upright column (1), the pedal rod (2) and the support column (3) are all made of galvanized steel pipes.

7. The mobile maintenance ladder for freight trains according to claim 6, characterized in that: The upper end of the ladder is provided with a mounting rod (4), and the hook (5) is connected to the mounting rod (4) and the stepping rod (2) of the ladder.

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