Safety rope suspension device for locomotive
By designing a safety rope suspension device that includes roof pillars, a slewing mechanism, a rotating arm, guide rails, and guide wheels, the problem of limited traditional safety rope attachment points was solved, enabling rapid deployment and retraction of the safety rope and improving the safety and efficiency of locomotive roof maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUZHOU PETROLEUM STORAGE & TRANSPORTATION EQUIP CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-19
AI Technical Summary
In existing technologies, the number of traditional safety rope attachment points is limited, which cannot cover the entire roof maintenance area. Furthermore, some attachment devices are bulky and cannot be flexibly extended or retracted, affecting passage and other maintenance procedures.
Design a safety rope suspension device that includes a roof column, a slewing mechanism, a rotating arm, a guide rail, a wire rope tensioning mechanism, and a guide wheel mechanism. The slewing mechanism is controlled by a drive motor to realize the unfolding and retraction of the guide rail and the sliding connection of the guide wheel mechanism, so as to meet the needs of multi-point attachment and large-scale operation.
It enables the rapid deployment and retraction of safety ropes, meeting the needs of multi-point attachment and large-scale operations, improving the safety and efficiency of high-altitude operations, and is suitable for locomotive roof maintenance.
Smart Images

Figure CN224251962U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of locomotive technology, specifically a safety rope suspension device for locomotives. Background Technology
[0002] The stability and safety of train operation place higher demands on the maintenance of rooftop equipment. When performing rooftop work, operators must be suspended by safety ropes to ensure safety while working at height.
[0003] However, due to the limited space on the train roof, traditional safety rope suspension structures generally have the following shortcomings: First, safety ropes are mostly fixed, with a limited number of attachment points, which cannot cover the entire roof maintenance area, thus limiting the scope of work; second, some attachment devices are bulky and cannot be flexibly extended or retracted, and long-term suspension occupies a large space, affecting passage and other maintenance operations. Utility Model Content
[0004] The purpose of this invention is to provide a safety rope suspension device for locomotives, so as to solve at least one aspect of the problems and defects mentioned in the background art.
[0005] A safety rope suspension device for locomotives is provided, comprising a roof column, on which a plurality of slewing mechanisms are provided, each slewing mechanism having a rotating arm fixedly connected to it, and a guide rail rotatably connected to the end of each rotating arm away from the slewing mechanism, a wire rope tensioning mechanism being provided on the guide rail, and a guide wheel mechanism being slidably connected to the front of the guide rail.
[0006] Furthermore, the slewing mechanism includes a drive motor, the output end of which is fixedly connected to a slewing bearing, and a rotating arm is fixedly connected to the slewing bearing.
[0007] Furthermore, a rotary joint is connected to the rotating arm via a first connecting plate, and a guide rail is connected to the side of the rotary joint away from the connecting plate via a second connecting plate.
[0008] Furthermore, the wire rope is arranged between the wire rope tensioning mechanisms. The wire rope tensioning mechanism includes two mounting plates, on which a wire rope sleeve and a wire rope adjusting rod are respectively arranged. A wire rope is arranged between the wire rope adjusting rod and the wire rope sleeve. The wire rope adjusting rod is rotatably connected to the mounting plate.
[0009] Furthermore, the wire rope sleeve includes a pull rod, which is slidably connected inside the mounting sleeve. A pressure plate is connected to one side of the upper part of the pull rod, and a spring is provided between the pressure plate and the mounting sleeve. A wire rope is provided between the pull rod and the wire rope adjusting rod.
[0010] Furthermore, several connecting baffles are provided between the wire rope and the guide rail.
[0011] Furthermore, each of the connecting baffles is provided with a clearance groove below it.
[0012] Furthermore, the guide wheel mechanism includes a shaft frame, with traveling wheels rotatably connected to both sides of the shaft frame. The traveling wheels are slidably connected to the front of the guide rail, and a safety rope shackle is detachably connected to the lower part of the shaft frame.
[0013] Furthermore, a warning light is also provided on the rotating arm.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] Key components, including roof columns, slewing mechanism, rotating arm, guide rail, wire rope and guide wheel mechanism, enable the rapid deployment and retraction of safety ropes, meeting the needs of multi-point attachment and large-scale operation;
[0016] The roof column serves as a fixed support component installed on the top structure of the maintenance area, used to install multiple rotating mechanisms. The rotating mechanism drives the rotating arm to rotate around the axis of the roof column, realizing the deployment and retraction of the device. One end of the rotating arm is connected to the rotating mechanism, and the other end is connected to the guide rail through a rotating bearing, so that the guide rail is always parallel to the roof column and maintains a horizontal state when deployed. A steel wire rope is installed in front of the guide rail and is slidably connected to the guide wheel mechanism. Operators can attach a safety rope to the steel wire rope or the guide wheel mechanism and move with the position of the guide wheel, improving operational flexibility.
[0017] When not in use, the device can be folded up and placed close to the roof column, without occupying passage or working space. While ensuring structural stability, it effectively improves the safety and efficiency of high-altitude operations, and is especially suitable for locomotive roof maintenance operations. Attached Figure Description
[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0019] Figure 1 A schematic diagram of a safety rope suspension device for locomotives in its retracted state;
[0020] Figure 2 This is a schematic diagram of the structure in its unfolded state provided by this utility model;
[0021] Figure 3 for Figure 2 Enlarged schematic diagram of structure A in the middle;
[0022] Figure 4 for Figure 2 Enlarged schematic diagram of the B-structure;
[0023] Figure 5 This is a side view schematic diagram of the structure provided by this utility model;
[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the drive motor provided by this utility model;
[0025] Figure 7 This is a schematic cross-sectional view of the guide wheel mechanism provided by this utility model;
[0026] Figure 8 This is a schematic diagram of the structure of the rotary joint provided by this utility model.
[0027] In the diagram: 1. Roof column; 2. Rotary mechanism; 21. Drive motor; 22. Rotary bearing; 3. Rotating arm; 31. First connecting plate; 32. Rotary joint; 33. Second connecting plate; 4. Guide rail; 5. Wire rope; 6. Guide wheel mechanism; 61. Shaft frame; 62. Traveling wheel; 63. Safety rope shackle; 7. Wire rope tensioning mechanism; 71. Mounting plate; 72. Wire rope sleeve; 721. Tie rod; 722. Mounting sleeve; 723. Pressure plate; 724. Spring; 73. Wire rope adjusting rod; 8. Connecting baffle; 81. Clearance groove; 9. Warning light. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.
[0029] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.
[0030] However, there may be instances where unnecessary detailed descriptions are omitted. For example, detailed descriptions of well-known matters or repetitive descriptions of essentially the same structures may be omitted. This is to avoid unnecessarily lengthy descriptions and to facilitate understanding by those skilled in the art. Furthermore, the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand this application and are not intended to limit the subject matter of the claims.
[0031] Please see Figure 1-8 As shown in the embodiment of this utility model, a safety rope suspension device for locomotives includes a roof column 1, on which a plurality of rotating mechanisms 2 are provided, and a rotating arm 3 is fixedly connected to each of the plurality of rotating mechanisms 2. A guide rail 4 is rotatably connected to the end of each rotating arm 3 away from the rotating mechanism 2. A steel wire rope 5 is provided below the guide rail 4, and a guide wheel mechanism 6 is slidably connected below the guide rail 4.
[0032] The roof column 1 serves as a support and the fixed foundation for the entire device. It is installed on the top structure or roof of the locomotive maintenance area. The slewing mechanism 2 is mounted on the roof column 1, allowing the rotating arm 3 to rotate around the axis of the roof column 1. This serves to extend or retract the guide rail 4 system. One end of the rotating arm 3 (horizontal connecting arm) is fixedly connected to the slewing mechanism 2, and the other end is rotatably connected to the guide rail 4. This allows the guide rail 4 to move at a certain angle, ensuring that the guide rail 4 remains parallel to the roof column 1 and horizontal when extended. The rotatable connection between the guide rail 4 and the rotating arm 3 allows the guide rail 4 to extend at a certain angle, ensuring that the guide rail 4 remains parallel to the roof column 1 and horizontal when extended. The rotatable connection between the guide rail 4 and the rotating arm 3 allows it to rotate and remain parallel to the roof column 1. A steel wire rope 5 is suspended below to carry the safety rope. A guide wheel mechanism 6 is installed below the guide rail 4 and can slide on the guide rail 4. A rope buckle can be suspended below it, allowing workers to move the safety rope along the guide rail 4, enhancing operational flexibility. The steel wire rope 5 runs through the bottom of the guide rail 4, providing a secure anchor for the workers. The system is designed for easy attachment of safety ropes. The rotating arms 3 of each rotating mechanism 2 are retracted near the roof column 1, and the guide rails 4 retract along the direction of the roof column 1, without occupying ground or space resources. Through the rotation of the rotating mechanism 2 (rotating 90 degrees), the rotating arms 3 extend outwards, driving the guide rails 4 to rotate to a horizontal working position. Each guide rail 4 remains parallel to the roof column 1, achieving multi-point deployment. Workers can fix the safety rope hook to the steel wire rope 5 below the guide rail 4, or directly attach it to the movable guide wheel mechanism 6. If attached to the guide wheel mechanism 6, the position can be adjusted to adapt to different maintenance areas. The guide rails 4 can be extended and retracted through rotation and folding. After maintenance, the device can be retracted without affecting passage or other operations. The sliding of the guide wheel mechanism 6 allows workers to adapt to different work positions, ensuring high safety: the steel wire rope 5 and guide wheel mechanism 6 allow workers to easily, quickly, and safely attach safety ropes, improving the safety of high-altitude operations. It is suitable for roof inspection or cleaning of high-speed trains.
[0033] In one embodiment, see Figure 1 , Figure 2 and Figure 6As shown, the slewing mechanism 2 includes a drive motor 21. The output end of the drive motor 21 is connected to a slewing bearing 22 through a reducer. A rotating arm 3 is fixedly connected to the slewing bearing 22. The output end of the drive motor 21 drives the entire slewing bearing 22 to rotate. The slewing bearing 22 connected to the output end of the drive motor 21 begins to rotate slowly. The slewing bearing 22 drives the rotating arm 3 connected to it to rotate around the roof column 1, thereby driving the guide rail 4 system to achieve angle-controllable expansion or contraction.
[0034] In one embodiment, see Figure 1 , Figure 2 , Figure 6 and Figure 8 As shown, a rotary joint 32 is connected to the rotating arm 3 via a first connecting plate 31. A guide rail 4 is connected to the side of the rotary joint 32 away from the first connecting plate 31 via a second connecting plate 33. The first connecting plate 31 is rigidly fixed to the rotating arm 3. The rotation of the rotating arm 3 causes the rotary joint 32 to move accordingly. The rotary joint 32 is connected to the second connecting plate 33, and then to the guide rail 4. Since the rotary joint 32 has a certain degree of rotational freedom, the guide rail 4 can maintain a horizontal posture at any rotation angle. The guide rail 4 is always suspended in the horizontal plane, which facilitates the movement and operation of the safety rope user in different positions.
[0035] Each rotating arm 3 controls its rotation angle through its own rotation mechanism 2; the rotating arm 3 rotates from the direction closest to the roof column 1 to 90° (extension state), and the guide rail 4 is brought out and kept horizontally suspended; the reverse rotation can retract the guide rail 4 to the side of the roof column 1, without taking up space, and the posture of the guide rail 4 remains unchanged, which is conducive to safe operation of personnel at any extension angle.
[0036] In one embodiment, see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the wire rope 5 is arranged between the wire rope tensioning mechanisms 7. The wire rope tensioning mechanism 7 includes two mounting plates 71. The two mounting plates 71 are respectively provided with a wire rope sleeve 72 and a wire rope adjusting rod 73. The wire rope 5 is arranged between the wire rope adjusting rod 73 and the wire rope sleeve 72. The wire rope adjusting rod 73 is rotatably connected to the mounting plate 71. Rotating the wire rope adjusting rod 73 is used to adjust the tension of the wire rope.
[0037] In one embodiment, see Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the wire rope sleeve 72 includes a pull rod 721, which is slidably connected inside the mounting sleeve 722. A pressure plate 723 is connected to the upper side of the pull rod 721. A spring 724 is provided between the pressure plate 723 and the mounting sleeve. A wire rope 5 is provided between the pull rod 721 and the wire rope adjusting rod 73. By rotating the wire rope adjusting rod 73, the wire rope 5 is tightened. The wire rope 5 pulls the pull rod 721 to slide to the right. The pull rod 721 is connected to the pressure plate 723, and the pressure plate 723 also moves to the right. The spring 724 is compressed by the pressure plate 723 between the pressure plate 723 and the sleeve 722. Due to the tension of the spring 724, it always provides a continuous elastic force when the wire rope 5 is taut. When there is an external impact or relaxation, the spring 724 automatically buffers to prevent instantaneous breakage.
[0038] In one embodiment, see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, several connecting baffles 8 are also provided between the wire rope 5 and the guide rail 4. The guide rail 4 and the wire rope 5 are not directly suspended, but are fixed by several connecting baffles 8. The upper end of the connecting baffle 8 is connected to the guide rail 4, and the lower end of the connecting baffle 8 is connected to the wire rope 5.
[0039] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, each connecting baffle 8 is provided with a clearance groove 81 below it. The clearance groove 81 provides an opening or channel at the bottom of the connecting baffle 8. The function of the clearance groove 81 is to allow the guide wheel mechanism 6 to slide on the guide rail 4 without being jammed or blocked by the connecting baffle 8. Through the clearance groove 81, personnel can cross the entire working range of the guide rail 4 without interruption, improving the convenience and continuity of operation.
[0040] In one embodiment, see Figure 5 and Figure 7 As shown, the guide wheel mechanism 6 includes a shaft frame 61, with traveling wheels 62 rotatably connected to both sides of the shaft frame 61. The traveling wheels 62 are slidably connected to the bottom of the guide rail 4. A safety rope shackle 63 is detachably connected to the bottom of the shaft frame 61. The traveling wheels 62 are installed on both sides of the shaft frame 61, forming a double-wheel structure similar to a "pulley clamp rail". The traveling wheels 62 slide along the guide rail 4, allowing the entire guide wheel mechanism 6 to slide freely under the guide rail 4. The safety rope shackle 63 is connected to the shaft frame 61 and serves as a support. The safety rope shackle 63 is connected to the safety rope below, allowing workers to easily, quickly, and safely attach the safety rope, improving the safety of high-altitude operations. It is suitable for maintenance on the roof of high-speed trains.
[0041] In one embodiment, see Figure 5 and Figure 7 As shown, the rotating arm 3 is also equipped with a warning light 9, which has three movement states: red, yellow and green. It is electrically connected to the external control box. When the red light flashes, the rotating arm 3 exceeds 90° and alarms. When the yellow light flashes, it indicates that the cantilever is in motion. The upper part of the control box is equipped with a 5° button: when pressed, the green light flashes and the rotating arm 3 moves in the 5° direction.
[0042] A 90° button is located on the top of the control box: when pressed, the green light flashes and the rotating arm 3 moves in a 90° direction;
[0043] The upper part of the control box is equipped with an emergency stop / stop function: when pressed, the rotating arm 3 stops moving.
[0044] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.
Claims
1. A safety rope suspension device for locomotives, comprising a roof column (1), characterized in that, The roof column (1) is provided with several rotating mechanisms (2), each of which is fixedly connected to a rotating arm (3). The end of the rotating arm (3) away from the rotating mechanism (2) is rotatably connected to a guide rail (4). A steel wire rope (5) is provided below the guide rail (4), and a guide wheel mechanism (6) is slidably connected below the guide rail (4).
2. The locomotive safety rope suspension device according to claim 1, characterized in that, The rotary mechanism (2) includes a drive motor (21), the output end of which is fixedly connected to a rotary bearing (22), and a rotating arm (3) is fixedly connected to the rotary bearing (22).
3. A safety rope suspension device for locomotives according to claim 2, characterized in that, A rotary joint (32) is connected to the rotating arm (3) via a first connecting plate (31), and a guide rail (4) is connected to the side of the rotary joint (32) away from the first connecting plate (31) via a second connecting plate (33).
4. A safety rope suspension device for locomotives according to claim 1, characterized in that, The wire rope (5) is arranged between the wire rope tensioning mechanism (7). The wire rope tensioning mechanism (7) includes two mounting plates (71). The two mounting plates (71) are respectively provided with a wire rope sleeve (72) and a wire rope adjusting rod (73). The wire rope (5) is arranged between the wire rope adjusting rod (73) and the wire rope sleeve (72). The wire rope adjusting rod (73) is rotatably connected to the mounting plate (71).
5. A safety rope suspension device for locomotives according to claim 4, characterized in that, The wire rope sleeve (72) includes a pull rod (721), which is slidably connected inside the mounting sleeve (722). A pressure plate (723) is connected to one side of the upper part of the pull rod (721). A spring (724) is provided between the pressure plate (723) and the mounting sleeve (722). A wire rope (5) is provided between the pull rod (721) and the wire rope adjusting rod (73).
6. A safety rope suspension device for locomotives according to claim 1, characterized in that, Several connecting baffles (8) are also provided between the wire rope (5) and the guide rail (4).
7. A safety rope suspension device for locomotives according to claim 6, characterized in that, Each of the connecting baffles (8) is provided with a clearance groove (81) below it.
8. A safety rope suspension device for locomotives according to claim 7, characterized in that, The guide wheel mechanism (6) includes a shaft frame (61), on both sides of the shaft frame (61) are rotatably connected to a traveling wheel (62), the traveling wheel (62) is slidably connected to the bottom of the guide rail (4), and a safety rope shackle (63) is detachably connected to the bottom of the shaft frame (61).
9. A safety rope suspension device for locomotives according to claim 7, characterized in that, The rotating arm (3) is also equipped with a warning light (9).