An overhead line artificial wiring tool

By using a modular support frame and a detachable connection structure for the jack lifting end, combined with dual-stage guide components and platform bridges, the shortcomings of existing equipment in small-scale line replacement and emergency repairs have been solved, enabling rapid response and stable operation of the overhead contact line equipment.

CN224576503UActive Publication Date: 2026-07-31CHONGQING HENGHAN ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING HENGHAN ELECTROMECHANICAL EQUIP CO LTD
Filing Date
2025-08-26
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

In electrified railways and urban rail transit, existing overhead contact line equipment cannot meet the needs of small-scale line replacement operations. The equipment startup preparation time is long, and the equipment transportation time is too long in emergency repairs of sudden accidents, making it difficult to meet the requirements of rapid response.

Method used

A manual overhead contact line wiring fixture was designed, which adopts a modular support frame and a detachable side support frame structure. Combined with the detachable connection of the jack lifting end and a two-stage guide component, it achieves lightweight and quick assembly and disassembly, ensuring the accuracy and stability of the wire reel clamping, lifting and laying process, and achieving seamless transfer of the wire reel through the platform cable tray.

Benefits of technology

It enables rapid response to small-scale line replacement and emergency repair needs, shortens the time for installation, connection and replacement operations, avoids resource waste and line paralysis risks, and meets the requirements for rapid response.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a manual contact wire wiring fixture, comprising: a rail-shaped vehicle; a support frame fixed to the top surface of the rail-shaped vehicle; a lifting assembly including two jacks, which are respectively fixed to both sides of the rail-shaped vehicle along its length; a mandrel disposed above the support frame, the two ends of which are detachably and fixedly connected to the lifting ends of the two jacks, and a wire reel rotatably disposed in the middle of the mandrel for winding the contact wire; and a transfer vehicle movably disposed on the top surface of the support frame and below the mandrel, the top surface of the transfer vehicle being fixedly provided with a horizontally rotating bearing, and the top surface of the bearing being fixedly provided with a holder for supporting and securing the wire reel. Using this manual contact wire wiring fixture can shorten the operation time for wire installation, connection, and replacement during use.
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Description

Technical Field

[0001] This utility model relates to the field of urban rail transit maintenance operation technology, specifically to a manual wiring tool for overhead contact lines. Background Technology

[0002] In the fields of electrified railways and urban rail transit, the overhead contact system, as the power transmission line for electric locomotives, requires the installation, inspection, and maintenance of its catenary and contact wires using track laying vehicles. The current industry practice of using a combination of track traction vehicles and large flatbed track laying vehicles has the following shortcomings: it cannot adapt to the needs of small-scale line replacement operations; the equipment startup preparation time is much longer than the actual construction time, resulting in a waste of construction resources; and in emergency repairs following sudden accidents, the equipment transportation time is too long, making it difficult to meet rapid response requirements. Existing technology urgently needs a lightweight, portable overhead contact system manual wiring tool to solve the problems of insufficient transportation, efficiency, and emergency response capabilities. Utility Model Content

[0003] In view of this, this utility model proposes a manual wiring tool for overhead contact lines to shorten the operation time of wiring, connection and replacement during use, and to meet the needs of small-scale replacement operations.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A tooling for manual wiring of overhead contact lines, comprising: Railcar; The support frame is fixed to the top of the railcar; The lifting assembly includes two jacks, which are fixed on both sides of the railcar along its length. The mandrel is located above the support frame. Its two ends are detachably and fixedly connected to the lifting ends of two jacks. The mandrel is rotatably equipped with a coil in the middle, which is used to wind the contact wire. And a transfer vehicle, which is movably mounted on the top surface of the support frame and located below the mandrel. The top surface of the transfer vehicle is fixedly provided with a horizontally rotating bearing, and the top surface of the bearing is fixedly provided with a bracket for supporting and securing the coil.

[0005] To better implement the above technical solution, optionally, the support frame includes a main base frame and two side support frames, the two side support frames being detachably fixed to both sides of the top surface of the main base frame; a first guide member is fixedly provided on opposite sides of the main base frame, and a second guide member is fixedly provided on each side support frame, the second guide member corresponding to the first guide member one-to-one, and the central axis of the second guide member coincides with the central axis of the corresponding first guide member, the lifting rods of the two jacks respectively movably pass through the corresponding first guide member and second guide member, and are guided by the first guide member and the second guide member together.

[0006] Optionally, the main frame includes: Four uprights, with the bottom ends of the four uprights fixed to the four corners of the top surface of the rail-shaped vehicle; Two sets of horizontal bracing rods, each set of horizontal bracing rods including several horizontal bracing rods arranged in parallel vertically, the two sets of horizontal bracing rods being fixed to the opposite side walls of the column respectively; Two horizontal tie rods are set in parallel, and the two ends of each horizontal tie rod are respectively fitted onto the top of the two adjacent columns, and both horizontal tie rods are perpendicular to the two sets of horizontal bracing rods. The support platform is located between the four columns. The support platform has a locking part fixed on each of its opposite sides, and the locking part is locked onto the cross brace on the corresponding side.

[0007] Optionally, the main frame also includes two diagonal braces arranged on the same side as the two horizontal tie rods, with the two ends of the diagonal braces fixedly connected to the top and bottom sides of the main frame, respectively.

[0008] Optionally, the two ends of the side support are respectively fixed with vertically extending first connecting sleeves, which are sleeved on the top of the column and located between the end of the horizontal support rod and the end of the horizontal tie rod.

[0009] Optionally, it also includes a platform cable tray, one side of which is fastened to a cross brace, and the other side is used to attach to the track platform.

[0010] Optionally, the mandrel is provided with two detachable and fixed sleeves spaced apart along the axial direction, and the coil is rotatably clamped between the two detachable sleeves.

[0011] Optionally, the transfer vehicle includes a plurality of rollers, wherein at least one roller is a lockable roller.

[0012] Optionally, a rod clamp is fixedly provided at the top of the jack lifting rod, and a connector tube is inserted into the end of the mandrel. The connector tube is detachably installed inside the rod clamp.

[0013] Optionally, the bottom of the rail-shaped vehicle is provided with rail-shaped wheels, which are adapted to the track.

[0014] The beneficial effects of this utility model are: This utility model discloses a manual wiring fixture for overhead contact lines. The support frame adopts a modular structure with a detachable connection between the main base frame and the side support frame, which realizes the lightweight and quick assembly and disassembly of the overall structure. It can flexibly meet the needs of small-scale operations such as partial line replacement and section maintenance, filling the gap in the adaptability of existing technology to small-scale operations.

[0015] This utility model discloses a manual wiring fixture for overhead contact lines. The detachable connection structure between the core rod and the lifting end of the jack, combined with the double-stage guiding structure formed by the first and second guide components, ensures accurate and stable wire reel clamping, lifting, and wire laying processes. It effectively shortens the operation time for wire installation, connection, and wire replacement, and avoids the waste of resources caused by the long start-up preparation time of traditional equipment compared to the actual construction time.

[0016] This utility model discloses a manual wiring fixture for overhead contact lines. During line replacement operations, the detachable side support frame structure avoids obstructing the movement of the transfer vehicle. The platform cable tray enables seamless transfer of the cable reel between the support frame and the platform, significantly shortening the equipment placement and cable reel replacement time during emergency repairs. It avoids the risk of line paralysis caused by delays in the transportation of traditional equipment and meets the requirements for rapid response in the event of a sudden accident. Attached Figure Description

[0017] Figure 1 This is a front view of a contact wire manual wiring fixture according to an embodiment of the present invention (the wire reel is in a state where it is lifted off the mounting bracket by a jack). Figure 2 This is a three-dimensional schematic diagram of a contact wire manual wiring fixture according to an embodiment of the present invention (the wire reel is in a state of being secured on the mounting bracket). Figure 3 This is a three-dimensional schematic diagram of a contact wire manual wiring fixture according to an embodiment of the present invention (the wire reel is in the wire changing process). Figure 4 yes Figure 1 A three-dimensional diagram of the central support frame and jacks; Figure 5 yes Figure 1 A three-dimensional schematic diagram of the transfer vehicle, bearing, and mounting bracket; Figure 6 yes Figure 1 A three-dimensional schematic diagram of the connection between the mandrel and the jack; Figure label: Rail-shaped vehicle 10, rail-shaped wheel 101, support frame 20, column 201, second fastening rod 2011, horizontal support rod 202, second connecting sleeve 2021, horizontal tie rod 203, bearing platform 204, fastening part 2041, first guide component 205, diagonal brace 206, side support frame 210, second guide component 211, first connecting sleeve 212, first fastening rod 213, jack 30, rod clamp 301, core rod 40, limit sleeve 401, connector pipe 402, transfer car 50, bearing bearing 60, card seat 70, cable reel 80, platform bridge 90. Detailed Implementation

[0018] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Identical components are indicated by the same reference numerals.

[0019] Please see Figures 1 to 6 This utility model discloses a manual wiring fixture for overhead contact lines, comprising: a rail-shaped vehicle 10, a support frame 20, a lifting assembly, a core rod 40, and a transfer vehicle 50. The rail-shaped vehicle 10 has a square structure and four rail-shaped wheels 101 adapted to the track are provided on its bottom surface. It can travel on the track by means of the four rail-shaped wheels 101. The support frame 20 is fixed on the top surface of the rail-shaped vehicle 10. The lifting assembly includes two jacks 30, which are fixed on both sides of the rail-shaped vehicle 10 along its length. The mandrel 40 is located above the support frame 20. The two ends of the mandrel 40 are detachably and fixedly connected to the lifting ends of the two jacks 30. The middle of the mandrel 40 is rotatably provided with a wire reel 80 for winding the contact wire. The transfer vehicle 50 is movable and located on the top surface of the support frame 20 and below the mandrel 40. The top surface of the transfer vehicle 50 is fixedly provided with a horizontally rotating bearing 60. The top surface of the bearing 60 is fixedly provided with a bracket 70 for supporting and securing the wire reel 80. like Figure 1-3 As shown, the working process of this utility model's manual wiring fixture for overhead contact lines is as follows: Wire loading operation: Secure the wire reel 80 with the contact wire wound on the holder 70, move the transfer cart 50 to the predetermined position on the top surface of the support frame 20, insert the mandrel 40 axially into the center hole of the wire reel 80; adjust the height of the lifting ends of the two jacks 30, and fix the two ends of the mandrel 40 to the lifting ends of the two jacks 30 respectively to complete the loading of the wire reel 80. Wiring operation: Drive the lifting ends of the two jacks 30 to rise synchronously, driving the core rod 40 and the wire reel 80 to rise, so that the wire reel 80 is disengaged from the holder 70; at this time, when pulling the contact wire, the wire reel 80 can rotate around the core rod 40 to release the wire. When the contact wire on the wire reel 80 is released, drive the lifting ends of the two jacks 30 to fall synchronously, driving the core rod 40 and the wire reel 80 to fall, until the wire reel 80 is locked back into the holder 70. Line replacement operation: Move the entire tooling to the designated position, remove the core rod 40, lower the lifting rod of the jack 30 to a height that does not obstruct the movement of the transfer cart 50, drive the transfer cart 50 to move so that it is detached from the support frame 20, replace the wire reel 80 with the contact wire wound on it, and reset the transfer cart 50 to the predetermined position on the support frame 20. Repeat the line installation operation to complete the replacement of the wire reel 80. like Figure 2As shown, the support frame 20 includes a main base frame and two side support frames 210. The two side support frames 210 are detachably fixed to both sides of the top surface of the main base frame. First guide members 205 are fixedly provided on opposite sides of the main base frame. Each side support frame 210 is fixedly provided with a second guide member 211. The second guide member 211 corresponds one-to-one with the first guide member 205, and the central axis of the second guide member 211 coincides with the central axis of the corresponding first guide member 205. The lifting rods of the two jacks 30 are respectively movably inserted into the corresponding first guide member 205 and second guide member 211, and are guided by the first guide member 205 and the second guide member 211. In the embodiment of the utility model, it should be noted that the two side support frames 210 are arranged on both sides of the width direction of the main body base frame. The width direction of the main body base frame is the same as the width direction of the track, and the length direction of the main body base frame is the same as the length direction of the track. The side support frames 210 can provide lateral safety protection for the cable reel 80 and facilitate the installation of the second guide member 211, thereby improving the lifting accuracy of the lifting rod of the jack 30. Continue reading Figure 2 The main frame includes four uprights 201, two sets of horizontal braces 202, two horizontal tie rods 203, and a support platform 204. The bottom ends of the four uprights 201 are fixed to the four corners of the top surface of the railcar 10 by welding. Each set of horizontal braces 202 includes several horizontal braces 202 arranged parallel to each other. The two sets of horizontal braces 202 are fixed to the opposite side walls of the uprights 201 by welding. The two horizontal tie rods 203 are arranged in parallel, and the two ends of each horizontal tie rod 203 are respectively sleeved on the top of the two adjacent uprights 201. The two horizontal tie rods 203 are perpendicular to the two sets of horizontal braces 202. The support platform 204 is set between the four uprights 201. The opposite sides of the support platform 204 are respectively fixed with locking parts 2041, which are locked to the corresponding horizontal braces 202. Specifically, each set of horizontal support rods 202 includes four horizontal support rods 202, one above the other. The first guide member 205 is a tubular structure and is fixedly connected to one end of each of the four horizontal support rods 202. The first guide member 205 and the four horizontal support rods 202 form an I-shaped structure. The support platform 204 consists of two pieces. Each support platform 204 has two locking parts 2041 at both ends in the length direction. The locking part 2041 is a buckle with a lower semi-circular notch. The support platform 204 can be fastened to the upper horizontal support rod 202 through the buckle. In an embodiment of this utility model, the side support 210 has a herringbone structure, the second guide member 211 is fixed in the middle of the side support 210, and the two ends of the side support 210 are respectively fixed with vertically extending first connecting sleeves 212. The first connecting sleeves 212 are sleeved on the top of the column 201 and located between the end of the horizontal support rod 202 and the end of the horizontal tie rod 203. The two ends of the horizontal support rod 202 are provided with downwardly extending second connecting sleeves 2021, and the two ends of the horizontal support rod 202 are sleeved on the top of the column 201 by means of the second connecting sleeves 2021.

[0020] In an embodiment of this utility model, the main frame also includes two diagonal braces 206 arranged on the same side as the two horizontal tie rods 203. The two ends of the diagonal braces 206 are respectively fixedly connected to the top and bottom sides of the main frame. Specifically, a first buckle part 213 is fixedly arranged radially on the outer wall of each first connecting sleeve 212, and a second buckle part 2011 is arranged radially on the bottom side of each column 201. Buckle seats are fixedly arranged at both ends of the diagonal braces 206. The buckle seats are fastened to the first buckle part 213 and the second buckle part 2011. On the one hand, this can improve the stability of the side support frame 210 assembled on the column 201, and on the other hand, it can improve the strength of the main frame.

[0021] In the embodiments of this utility model, it should be noted that during the replacement of the reel 80, the side support frame 210 needs to be removed to prevent the transfer car 50 from obstructing the movement between the top surface of the support frame 20 and the track platform.

[0022] In this embodiment of the utility model, a platform bridge 90 is also included. One side of the platform bridge 90 is fastened to the horizontal support rod 202, and the other side is used to connect to the track platform. Specifically, the side of the platform bridge 90 that cooperates with the horizontal support rod 202 is provided with multiple fasteners. The platform bridge 90 is fastened to the upper horizontal support rod 202 through the fasteners. The top surface of the support frame 20 is flush with, slightly higher than or slightly lower than the track platform. In this way, the platform bridge 90 can be used to move the transfer car 50 and the cable reel 80 between the support frame 20 and the platform, which is convenient for changing the cable reel 80. In an embodiment of this utility model, two limiting sleeves 401 are detachably fixedly fitted on the core rod 40 at axial intervals. The coil 80 is rotatably clamped between the two limiting sleeves 401. The limiting sleeves 401 are preferably limiting sleeves locked with adjusting screws to facilitate disassembly and assembly. In an embodiment of this utility model, the transfer vehicle 50 includes a plurality of rollers, at least one of which is a lockable roller. Specifically, there are four rollers, two of which are lockable rollers. The lockable rollers are provided to facilitate locking the rollers when the transfer vehicle 50 needs to be stationary. like Figure 5 As shown, in the embodiments of this utility model, the transfer vehicle 50, the bearing 60, and the card holder 70 are existing technologies and will not be described in detail.

[0023] like Figure 6 As shown in the embodiment of this utility model, the top end of the lifting rod of the jack 30 is fixedly provided with a rod clamp 301, and the end of the core rod 40 is inserted with a connector tube 402. The connector tube 402 is detachably installed in the rod clamp 301. Specifically, the rod clamp 301 adopts a quick-release structure to facilitate the disassembly and assembly of the core rod 40. The rod clamp 301 is a commercially available part, and its specific structure will not be described in detail.

[0024] This utility model discloses a manual wiring fixture for overhead contact lines. The support frame adopts a modular structure with a detachable connection between the main base frame and the side support frame, which realizes the lightweight and quick assembly and disassembly of the overall structure. It can flexibly meet the needs of small-scale operations such as partial line replacement and section maintenance, filling the gap in the adaptability of existing technology to small-scale operations.

[0025] This utility model discloses a manual wiring fixture for overhead contact lines. The detachable connection structure between the core rod and the lifting end of the jack, combined with the double-stage guiding structure formed by the first and second guide components, ensures accurate and stable wire reel clamping, lifting, and wire laying processes. It effectively shortens the operation time for wire installation, connection, and wire replacement, and avoids the waste of resources caused by the long start-up preparation time of traditional equipment compared to the actual construction time.

[0026] This utility model discloses a manual wiring fixture for overhead contact lines. During line replacement operations, the detachable side support frame structure avoids obstructing the movement of the transfer vehicle. The platform cable tray enables seamless transfer of the cable reel between the support frame and the platform, significantly shortening the equipment placement and cable reel replacement time during emergency repairs. It avoids the risk of line paralysis caused by delays in the transportation of traditional equipment and meets the requirements for rapid response in the event of a sudden accident.

[0027] The technical solution of this utility model has been described in detail above with reference to specific embodiments. The specific embodiments described are used to help understand the concept of this utility model. Derivations and modifications made by those skilled in the art based on the specific embodiments of this utility model also fall within the protection scope of this utility model.

Claims

1. A tooling for manual wiring of overhead contact lines, comprising: Rail-mounted vehicle (10); Its characteristic is that it further includes: The support frame (20) is fixed to the top surface of the railcar (10); The lifting assembly includes two jacks (30), which are respectively fixed on both sides of the railcar (10) along its length. A core rod (40) is located above the support frame (20). The two ends of the core rod (40) are detachably and fixedly connected to the lifting ends of two jacks (30). A coil (80) is rotatably provided in the middle of the core rod (40). The coil (80) is used to wind the contact wire. And a transfer vehicle (50), which is movably disposed on the top surface of the support frame (20) and located below the core rod (40). The top surface of the transfer vehicle (50) is fixedly provided with a horizontally rotating bearing (60), and the top surface of the bearing (60) is fixedly provided with a bracket (70) for supporting and securing the coil (80).

2. The contact wire manual wiring fixture according to claim 1, characterized in that, The support frame (20) includes a main base frame and two side support frames (210). The two side support frames (210) are detachably fixed on both sides of the top surface of the main base frame. The main base frame is fixedly provided with a first guide member (205) on opposite sides. Each side support frame (210) is fixedly provided with a second guide member (211). The second guide member (211) corresponds to the first guide member (205) one by one, and the central axis of the second guide member (211) coincides with the central axis of the corresponding first guide member (205). The lifting rods of the two jacks (30) are respectively movably inserted into the corresponding first guide member (205) and second guide member (211), and are guided by the first guide member (205) and the second guide member (211).

3. The contact wire manual wiring fixture according to claim 2, characterized in that, The main frame includes: Four columns (201) are fixed at their bottom ends to the four corners of the top surface of the railcar (10); Two sets of horizontal bracing rods (202), each set of horizontal bracing rods (202) includes several horizontal bracing rods (202) arranged in parallel vertically, and the two sets of horizontal bracing rods (202) are respectively fixed to the opposite side walls of the column (201); Two horizontal tie rods (203) are set in parallel, and the two ends of each horizontal tie rod (203) are respectively sleeved on the top of the two adjacent columns (201), and both horizontal tie rods (203) are perpendicular to the two sets of horizontal bracing rods (202); And a support platform (204) is provided between four columns (201). The support platform (204) has a locking part (2041) fixed on each of its opposite sides. The locking part (2041) is locked onto the cross brace (202) on the corresponding side.

4. The contact wire manual wiring fixture according to claim 3, characterized in that, The main frame also includes two diagonal braces (206) arranged on the same side as the two horizontal tie rods (203), and the two ends of the diagonal braces (206) are fixedly connected to the top and bottom sides of the main frame, respectively.

5. The contact wire manual wiring fixture according to claim 4, characterized in that, The two ends of the side support frame (210) are respectively fixed with vertically extending first connecting sleeves (212). The first connecting sleeves (212) are sleeved on the top of the column (201) and located between the end of the horizontal support rod (202) and the end of the horizontal tie rod (203).

6. The contact wire manual wiring fixture according to claim 5, characterized in that, It also includes a platform bridge (90), one side of which is fastened to a cross brace (202), and the other side is used to attach to the track platform.

7. The contact wire manual wiring fixture according to claim 1, characterized in that, The mandrel (40) is provided with two detachable and fixed sleeves spaced axially, and the coil (80) is rotatably clamped between the two detachable sleeves (401).

8. The contact wire manual wiring fixture according to claim 1, characterized in that, The transfer vehicle (50) includes a plurality of rollers, at least one of which is a lockable roller.

9. The contact wire manual wiring fixture according to claim 1, characterized in that, The top end of the lifting rod of the jack (30) is fixedly provided with a rod clamp (301), and the end of the core rod (40) is provided with a connector tube (402), which is detachably installed in the rod clamp (301).

10. The contact wire manual wiring fixture according to claim 1, characterized in that, The bottom of the rail-shaped vehicle (10) is provided with rail-shaped wheels (101), which are adapted to the track.