A mobile cage for track maintenance

By combining the slide rail, pull ring, and U-shaped frame, along with the motor-driven threaded rod and threaded plate, the problem of the cage being unable to move horizontally during maintenance on the overhead rail was solved, thus improving the maintenance speed.

CN224337065UActive Publication Date: 2026-06-09GUANGZHOU FIRST MUNICIPAL ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU FIRST MUNICIPAL ENG CO LTD
Filing Date
2025-05-20
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing hoists used for railway track maintenance cannot be moved horizontally, which limits the speed of track maintenance and requires the use of a crane for movement.

Method used

The cage is slid by the combination of slide rails, pull rings, cages, and U-shaped frames. The friction generated by the workers holding the pull rings makes the cage slide, and the installation and movement of the cage are achieved by the combination of motors, threaded rods, threaded plates, and cross plates.

Benefits of technology

It enables horizontal movement of the cage, improving the speed and efficiency of track maintenance and reducing reliance on cranes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mobile type cage for the maintenance of trolley track relates to the technical field of cage, including base, the top of base is provided with moving plate, the outer surface sliding connection of moving plate has cross board, the outer surface fixed connection of cross board has U type frame. The utility model discloses design structure is reasonable, it can through the cooperation between the slide, the pull ring, the cage and U type frame, when needing to move the cage, the worker holds the pull ring, and pulls back with force, and the friction of worker's foot and the upper surface of cage produces, and the friction of the cage produces forward, can through the sliding of pulley, and make the cage move forward, solved the existing for the maintenance of trolley track cage when using, most of the cage exists the problem that horizontal direction can not move, when a section trolley track maintenance is finished, just need to use the crane to move the cage, the speed of track maintenance has been affected.
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Description

Technical Field

[0001] This utility model relates to the technical field of hoist cages, specifically a mobile hoist cage used for maintenance of railway tracks. Background Technology

[0002] A train track is a road used to guide vehicles. It usually consists of two parallel steel rails with a certain distance between them. It is widely used in railways, subways, factories and other scenarios. It is mainly used to guide vehicles, bear the weight of vehicles, disperse impact forces, and cooperate with signal systems and switches to realize train scheduling and control. Train tracks include crane rails, P-type railway rails, etc.

[0003] However, most existing crane cages used for railway track maintenance have the problem of being unable to move horizontally. After a section of track has been repaired, a crane is needed to move the cage, which is approximately 1.2 meters long. Since only about 1.2 meters of track can be repaired at a time, other tools are needed to move the cage, affecting the speed of track maintenance. Therefore, we provide a mobile crane cage for railway track maintenance to solve these problems. Utility Model Content

[0004] Technical problems to be solved:

[0005] This invention proposes a mobile hoist for railway track maintenance. Through the cooperation of a slide rail, pull ring, hoist, and U-shaped frame, the U-shaped frame is installed on the outer surface of the railway track. When the hoist needs to be moved, the worker holds the pull ring and pulls backward. The friction between the worker's feet and the upper surface of the hoist causes the hoist to move forward via the sliding of pulleys. This solves the problem that most existing hoists used for railway track maintenance cannot move horizontally, and that after a section of railway track is repaired, a crane is needed to move the hoist, affecting the speed of track maintenance.

[0006] Technical solution:

[0007] To achieve the above objectives, the present invention provides the following technical solution: a mobile hoist for maintenance of railway tracks, comprising a base, a movable plate disposed above the base, a cross plate slidably connected to the outer surface of the movable plate, a U-shaped frame fixedly connected to the outer surface of the cross plate, and a hoist slidably connected to the outer surface of the U-shaped frame;

[0008] A slide rail is fixedly connected to the outer surface of the U-shaped frame, a pull ring is fixedly connected to the upper surface of the slide rail, a groove is formed on the outer surface of the slide rail, and a pulley is fixedly connected to the outer surface of the cage, with the outer surface of the pulley slidably connected to the inner wall of the groove.

[0009] A motor is fixedly connected to the bottom surface of the base, a rotating rod is fixedly connected to the output shaft end of the motor, a threaded rod is fixedly connected to one end of the rotating rod, a threaded plate is threadedly connected to the outer surface of the threaded rod, and the outer surface of the threaded plate is fixedly connected to the outer surface of the moving plate.

[0010] Furthermore, a support rod is provided on one side of the base, and a trolley rail is fixedly connected to the top of the support rod. The upper surface of the trolley rail is slidably connected to the bottom surface of the U-shaped frame.

[0011] Furthermore, the bottom surface of the slide is provided with a slot, and a card plate is fixedly connected to the outer surface of the cage, with the outer surface of the card plate slidably connected to the inner wall of the slot.

[0012] Furthermore, a limiting plate is fixedly connected to the upper surface of the base, and a limiting groove is formed on the outer surface of the threaded plate. The outer surface of the limiting plate is slidably connected to the inner wall of the limiting groove.

[0013] Furthermore, a cross groove is provided on the side of the movable plate, and the inner wall of the cross groove is slidably connected to the outer surface of the cross plate.

[0014] Furthermore, a blocking plate is fixedly connected to the top of the limiting plate, and the bottom surface of the blocking plate is slidably connected to the top of the threaded rod.

[0015] Furthermore, a plug rod is slidably connected to the outer surface of the movable plate, and the outer surface of the plug rod is slidably connected to the interior of the cross plate.

[0016] Beneficial effects:

[0017] Compared with existing technologies, this mobile hoist for railway track maintenance has the following advantages:

[0018] I. This mobile hoisting cage for crane track maintenance utilizes a sliding track, pull rings, a hoisting cage, and a U-shaped frame. The U-shaped frame is installed on the outer surface of the crane track. When the hoisting cage needs to be moved, the worker holds the pull rings and pulls backward. The worker's feet generate forward friction against the hoisting cage, which moves the cage forward through the sliding of pulleys. This solves the problem that most existing hoisting cages used for crane track maintenance cannot be moved horizontally, and that after a section of the crane track is repaired, a crane is needed to move the hoisting cage, affecting the speed of track maintenance.

[0019] II. This mobile hoisting cage for crane track maintenance works by cooperating with a motor, threaded rod, threaded plate, and cross plate. When installing the cage, the cross plate is installed into the cross groove, and a rod is inserted into the moving plate and the cross plate. Driven by the motor, the threaded plate is moved upward, the base is moved, and the U-shaped frame is moved directly above the crane track. Then, the motor moves the U-shaped frame downward so that it is locked onto the upper surface of the crane track, thus completing the installation of the hoisting cage. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a partial exploded view of the structure of this utility model;

[0023] Figure 3 This is a partial structural schematic diagram of the present invention;

[0024] Figure 4 This is a schematic diagram showing the positional relationship between the pulley and the clamping plate of this utility model;

[0025] Figure 5 This is a partial structural cross-sectional view of the present invention;

[0026] Figure 6 For the present utility model Figure 1 Enlarged view of the structure of section A in the middle.

[0027] In the diagram: 1. Base; 2. Movable plate; 3. Cross plate; 4. U-shaped frame; 5. Cage; 6. Slide rail; 7. Pull ring; 8. Slide groove; 9. Pulley; 10. Motor; 11. Rotating rod; 12. Threaded rod; 13. Threaded plate; 14. Support rod; 15. Car track; 16. Slot; 17. Card plate; 18. Limiting plate; 19. Limiting groove; 20. Cross groove; 21. Blocking plate; 22. Insert rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] The motor in this utility model is a common electrical device in the prior art, and this application will not elaborate on its model or internal structure.

[0030] like Figure 1-6 As shown, this utility model provides a technical solution: a mobile cage for maintenance of railway tracks, including a base 1, a movable plate 2 above the base 1, a cross plate 3 slidably connected to the outer surface of the movable plate 2, a U-shaped frame 4 fixedly connected to the outer surface of the cross plate 3, a support rod 14 on one side of the base 1, a railway track 15 fixedly connected to the top of the support rod 14, the upper surface of the railway track 15 slidably connected to the bottom surface of the U-shaped frame 4, and three support rods 14 in total, which can support the railway track 15.

[0031] The outer surface of the U-shaped frame 4 is slidably connected to the cage 5. The outer surface of the cage 5 is provided with maintenance windows and opening / closing doors to facilitate the maintenance of the track. The side of the movable plate 2 is provided with a cross groove 20. The inner wall of the cross groove 20 is slidably connected to the outer surface of the cross plate 3. The cross plate 3 can be precisely locked inside the cross groove 20. The setting of the cross plate 3 and the cross groove 20 facilitates the installation and disassembly of the cage 5.

[0032] A rod 22 is slidably connected to the outer surface of the movable plate 2. The outer surface of the rod 22 is slidably connected to the inside of the cross plate 3. The rod 22 is inserted into the interior of the movable plate 2 and the cross plate 3 to prevent the cross plate 3 from sliding out of the cross groove 20 when the cage 5 is moved upward, thus improving the safety of the device.

[0033] A slide rail 6 is fixedly connected to the outer surface of the U-shaped frame 4. A pull ring 7 is fixedly connected to the upper surface of the slide rail 6. A groove 8 is opened on the outer surface of the slide rail 6. A pulley 9 is fixedly connected to the outer surface of the cage 5. A slot 16 is opened on the bottom surface of the slide rail 6. A locking plate 17 is fixedly connected to the outer surface of the cage 5. The outer surface of the locking plate 17 is slidably connected to the inner wall of the slot 16. The locking plate 17 is locked inside the slot 16 and provides support for the cage 5, preventing the weight of the cage 5 and the personnel inside from being entirely applied to the pulley 9. Lubricating oil is applied to the outer surface of the locking plate 17 to facilitate the sliding of the locking plate 17 inside the slot 16. The locking plate 17 and the slot 16 do not affect the movement of the cage 5. The outer surface of the pulley 9 is slidably connected to the inner wall of the groove 8.

[0034] A motor 10 is fixedly connected to the bottom surface of the base 1. This motor 10 is a forward motor 10, which converts electrical pulses into angular displacement. The rotation angle and speed of the motor 10 are controlled by controlling the number and frequency of pulse signals. Forward and reverse rotation are achieved by changing the order of the pulse signals. A rotating rod 11 is fixedly connected to the output shaft end of the motor 10. The output shaft end of the motor 10 drives the rotating rod 11 to rotate, providing power to the rotating rod 11 for easy operation. A threaded rod 12 is fixedly connected to one end of the rotating rod 11. A threaded plate 13 is threadedly connected to the outer surface of the threaded rod 12.

[0035] A blocking plate 21 is fixedly connected to the top of the limiting plate 18. The bottom surface of the blocking plate 21 is slidably connected to the top of the threaded rod 12. The blocking plate 21 can prevent the threaded plate 13 from disengaging from the threaded rod 12 and limit the highest position that the threaded plate 13 can move. When the motor 10 rotates forward, it can drive the threaded plate 13 to move upward. When the motor 10 rotates in reverse, it can drive the threaded plate 13 to move downward.

[0036] A limiting plate 18 is fixedly connected to the upper surface of the base 1. A limiting groove 19 is opened on the outer surface of the threaded plate 13. The outer surface of the limiting plate 18 is slidably connected to the inner wall of the limiting groove 19. When the threaded rod 12 drives the threaded plate 13 to slide, the limiting plate 18 will slide inside the limiting groove 19 to limit the movement of the threaded plate 13, so that the threaded plate 13 can only move up and down and cannot rotate. The outer surface of the threaded plate 13 is fixedly connected to the outer surface of the moving plate 2.

[0037] Working principle: During use, when installing the cage 5, start the motor 10, position the threaded plate 13 in the appropriate position, install the cross plate 3 into the cross groove 20, and use the insert rod 22 to pass through the moving plate 2 and the cross plate 3 to prevent the cross plate 3 from sliding out of the cross groove 20 when moving the cage 5 upward. Start the motor 10, and the output shaft of the motor 10 drives the threaded rod 12 to rotate through the rotating rod 11. The threaded rod 12 drives the threaded plate 13 to move upward. The threaded plate 13 drives the cage 5 upward through the moving plate 2, the cross plate 3, and the U-shaped frame 4, so that the U-shaped frame 4 moves above the traveling rail 15, and then moves through the moving base. 1. Move the U-shaped frame 4 directly above the traveling rail 15. Use the motor 10 to lower the U-shaped frame 4 so that it is locked onto the upper surface of the traveling rail 15. The worker inside the cage 5 uses a rod-like object to push the insert rod 22 out of the moving plate 2. Move the base 1 using the casters below the base 1 so that the moving plate 2 is disengaged from the cross plate 3. The installation of the cage 5 is now complete. When the cage 5 needs to be moved, the worker holds the pull ring 7 and pulls it backward. The friction between the worker's feet and the upper surface of the cage 5 generates a forward friction force on the cage 5. The cage 5 can be moved forward by sliding the pulley 9.

[0038] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A mobile hoist for maintenance of railway tracks, comprising a base (1), characterized in that: A movable plate (2) is provided above the base (1). A cross plate (3) is slidably connected to the outer surface of the movable plate (2). A U-shaped frame (4) is fixedly connected to the outer surface of the cross plate (3). A hanging cage (5) is slidably connected to the outer surface of the U-shaped frame (4). The outer surface of the U-shaped frame (4) is fixedly connected to a slide rail (6), the upper surface of the slide rail (6) is fixedly connected to a pull ring (7), the outer surface of the slide rail (6) is provided with a groove (8), the outer surface of the cage (5) is fixedly connected to a pulley (9), and the outer surface of the pulley (9) is slidably connected to the inner wall of the groove (8). A motor (10) is fixedly connected to the bottom surface of the base (1). A rotating rod (11) is fixedly connected to the output shaft end of the motor (10). A threaded rod (12) is fixedly connected to one end of the rotating rod (11). A threaded plate (13) is threadedly connected to the outer surface of the threaded rod (12). The outer surface of the threaded plate (13) is fixedly connected to the outer surface of the moving plate (2).

2. A mobile hoist for railway track maintenance according to claim 1, characterized in that: A support rod (14) is provided on one side of the base (1), and a carriage rail (15) is fixedly connected to the top of the support rod (14). The upper surface of the carriage rail (15) is slidably connected to the bottom surface of the U-shaped frame (4).

3. A mobile hoist for railway track maintenance according to claim 1, characterized in that: The bottom surface of the slide (6) is provided with a slot (16), and the outer surface of the cage (5) is fixedly connected with a card plate (17). The outer surface of the card plate (17) is slidably connected to the inner wall of the slot (16).

4. A mobile hoist for railway track maintenance according to claim 1, characterized in that: A limiting plate (18) is fixedly connected to the upper surface of the base (1), and a limiting groove (19) is opened on the outer surface of the threaded plate (13). The outer surface of the limiting plate (18) is slidably connected to the inner wall of the limiting groove (19).

5. A mobile hoist for railway track maintenance according to claim 1, characterized in that: The side of the movable plate (2) is provided with a cross groove (20), and the inner wall of the cross groove (20) is slidably connected to the outer surface of the cross plate (3).

6. A mobile hoist for railway track maintenance according to claim 4, characterized in that: The top of the limiting plate (18) is fixedly connected to a blocking plate (21), and the bottom surface of the blocking plate (21) is slidably connected to the top of the threaded rod (12).

7. A mobile hoist for railway track maintenance according to claim 1, characterized in that: The outer surface of the movable plate (2) is slidably connected to a plug rod (22), and the outer surface of the plug rod (22) is slidably connected to the inside of the cross plate (3).