An insulating joint for railway cables

By designing an insulation bracket for railway cables, the problem of poor power supply caused by loose cable joints was solved, enabling rapid troubleshooting and efficient maintenance, and improving operation and maintenance efficiency and safety.

CN224438522UActive Publication Date: 2026-06-30ELECTRICITY AFFAIR ENG COMPANY OF CHINA RAILWAY NO 8 ENG GRP +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ELECTRICITY AFFAIR ENG COMPANY OF CHINA RAILWAY NO 8 ENG GRP
Filing Date
2025-07-11
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Railway cable joints are prone to loosening during train operation, leading to poor power supply to equipment. Furthermore, a significant amount of time is required to locate loose joints during maintenance, impacting operational efficiency.

Method used

Design an insulating support frame for railway cables, including a frame body, a cable fixing frame, and clamping components. By vertically arranging support platforms on the frame body to place cable joints, and connecting them to the wall via grounding cables, cable fixing frames, and fasteners, the cable joints are ensured to be independently placed and reliably grounded, preventing swaying.

Benefits of technology

It facilitates operators to quickly eliminate loose cable joint faults, improves operation and maintenance efficiency, ensures safety and stability, and reduces the workload of operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of railway cable wiring, and particularly to an insulating support frame for railway cables, comprising a cable fixing frame and a frame body. The frame body has several vertically arranged support platforms, with adjacent support platforms spaced apart. Each support platform has a grounding cable. Cable fixing frames are located on both sides of the frame body, spaced apart from the frame body. Each cable fixing frame has a connecting beam, fixing components, and clamping assemblies. The connecting beams are connected to the frame body. The fixing components are used to connect to the wall, and the clamping assemblies are used to clamp the cables. The cable joints are placed independently on the support platforms, facilitating inspection and maintenance by operators. By fixing the cables at both ends of the cable joints to the cable fixing frames, cable joints are prevented from detaching from the support platforms due to cable movement. The spaced arrangement between the frame body and the cable fixing frames allows the cables located between them to move freely, facilitating maintenance of the cable joints by operators. This reduces the workload of operators and improves work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of railway cable wiring, and in particular to an insulating bracket for railway cables. Background Technology

[0002] In railway lines, multiple cables are needed to provide stable power to the equipment. After the wiring is completed, the cable joints are led to the designated locations and the equipment is powered through the joint connection.

[0003] However, in the current railway system, the cable joints on the equipment side are stacked haphazardly. Ground vibrations caused by train operation may loosen the cable joints, leading to poor power supply on the equipment side. During operation and maintenance, operators need to spend a lot of time identifying loose cable joints, and the troubleshooting process takes a long time. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies, such as the need for operators to spend a lot of time searching for loose cable joints, which affects maintenance efficiency, and to provide an insulation bracket for railway cables.

[0005] This utility model provides an insulating joint for railway cables, comprising:

[0006] The frame is provided with several vertically arranged support platforms, with adjacent support platforms spaced apart, and each support platform is provided with a grounding cable;

[0007] A cable holder is provided on both sides of the frame body, with the cable holder spaced apart from the frame body. The cable holder is provided with a connecting beam, a fixing member, and a clamping assembly. The connecting beam is connected to the frame body; the fixing member is used to connect to the wall surface; and the clamping assembly is used to clamp the cable.

[0008] This utility model discloses an insulation bracket for railway cables. It comprises several vertically arranged support platforms on a frame, each holding a cable connector. Independent placement of the cable connectors facilitates maintenance and helps workers quickly resolve loose cable connector issues. Grounding cables are connected to the support platforms to ensure reliable grounding, preventing electric shock and ensuring worker safety. The cable clamp limits the cable at both ends of the connector, preventing significant cable sway and detachment from the support platforms. The cable is clamped and fixed to the cable clamp by clamping components. The bracket is securely fixed to a wall via fasteners. The cable clamp is connected to the frame via connecting beams, with a gap between them allowing free movement of the cable, facilitating quick connection and disconnection of cable connectors for easy maintenance.

[0009] Preferably, the connecting beam includes a first connecting beam and a second connecting beam. The first connecting beam is located at the top of the cable holder, and the second connecting beam is located at the bottom of the cable holder. The first connecting beam is connected to the top of the frame, and the second connecting beam is connected to the bottom of the frame.

[0010] The first and second connecting beams are connected to the top and bottom of the frame respectively, ensuring a firm connection between the cable holder and the frame and preventing relative displacement between the cable holder and the frame from pulling the cable and loosening the cable joint.

[0011] Preferably, it also includes a grounding main cable, the grounding cable being connected to the grounding main cable, and the grounding main cable being spaced apart from the frame.

[0012] Connect the grounding cable to the grounding main cable, and connect the grounding main cable to the ground to ensure reliable grounding of all supporting platforms.

[0013] Preferably, the cable support frame includes a first support column, a second support column, and several crossbars. One end of each crossbar is connected to the first support column, and the other end is connected to the second support column. The first support column and / or the second support column are connected to the connecting beam.

[0014] By arranging the cable tie in a ladder shape, it is easier to secure the cables.

[0015] Preferably, the clamping assembly includes a plurality of first clamping members and a plurality of second clamping members, the plurality of first clamping members being arranged on the first support, and each of the crossbars being connected to a second clamping member.

[0016] The second clamp is used to clamp the cable bundle and the single cable that is heading towards the branch of the cable bundle. By clamping the cable with the first clamp and the second clamp, it is difficult for the cable on the cable holder to move.

[0017] Preferably, both the first clamping member and the second clamping member include a base plate and a clamping member, wherein the base plate is detachably connected to the clamping member; the base plate is connected to the crossbar, or the base plate is connected to the first support column.

[0018] The cable is clamped and fixed between the base plate and the clamping device to secure the cable.

[0019] Preferably, the clamping member includes a partition, and the bottom plate has support blocks at both ends, the support blocks being detachably connected to the partition.

[0020] The space between the partition and the base plate forms a clamping space for the cable. The support block abuts against the limiting partition, which can prevent the cable from being excessively clamped.

[0021] The bolted connection makes it easy to fix the cable to the cable rack, and the operator can quickly clamp or loosen the cable, which is convenient for maintenance.

[0022] Preferably, the fastener is provided with a positioning hole for connection with a wall bolt.

[0023] The cable tray and frame are securely fixed to the wall using bolts.

[0024] Preferably, the supporting platform has a hollowed-out section, which is used to limit the cable joint.

[0025] The cable connector is placed horizontally so that both ends of the cable connector overlap on the supporting platform, and the middle of the cable connector enters the hollow part, thereby limiting the cable connector.

[0026] Preferably, both the frame and the cable holder include aluminum alloy structural components.

[0027] Aluminum alloy structural components have good structural strength, are not easily deformed, are lightweight, and are easy to install.

[0028] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0029] 1. This utility model provides an insulation bracket for railway cables. It consists of several vertically arranged support platforms on a frame, each platform holding a cable connector. This independent placement of the cable connectors facilitates maintenance and helps workers quickly resolve loose cable connector issues. Grounding cables are connected to the support platforms to ensure reliable grounding, preventing electric shock and ensuring worker safety. The cable clamp limits the cable at both ends of the connector, preventing significant cable sway and thus preventing the connector from detaching from the support platform. The cable is clamped and fixed to the cable clamp by a clamping assembly. The frame is securely fixed to a wall via fasteners. The cable clamp is connected to the frame via a connecting beam, with a gap between them allowing the cable to move freely, facilitating quick connection and disconnection of cable connectors and simplifying maintenance.

[0030] 2. This utility model provides an insulation support frame for railway cables. The cable joints are placed independently via a support platform, facilitating inspection and maintenance by operators. By fixing the cables at both ends of the cable joint to the support frame, cable joints are prevented from detaching from the support platform due to cable swaying. The spaced arrangement between the frame and the support frame allows the cables located between them to move freely, facilitating maintenance by operators. This reduces the workload of cable operators, improves work efficiency, and has good economic and practical value. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of an insulating joint frame for railway cables according to Embodiment 1 of this utility model;

[0032] Figure 2 This is a schematic diagram of the structure of an insulation bracket for railway cables according to Embodiment 1 of this utility model;

[0033] Figure 3 This is a schematic diagram of the structure of a wire fixing frame for an insulating joint frame of railway cables according to Embodiment 1 of this utility model;

[0034] Figure 4 This is a partial cross-sectional view of a support platform for an insulating joint frame of a railway cable according to Embodiment 1 of this utility model.

[0035] Figure 5 This is a schematic diagram of the structure of the first clamping member of an insulating joint frame for railway cables according to Embodiment 1 of this utility model.

[0036] Marked in the image:

[0037] 1-Frame, 2-Supporting platform, 21-Hollow section, 3-Grounding cable, 4-Cable holder, 41-First support column, 42-Second support column, 43-Horizontal bar, 5-Connecting beam, 51-First connecting crossbeam, 52-Second connecting crossbeam, 6-Clamping assembly, 61-First clamping component, 62-Second clamping component, 63-Partition plate, 64-Support block, 65-Base plate, 7-Fixing component, 71-Positioning hole, 8-Grounding main cable, 100-Cable connector. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0039] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0040] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0041] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0042] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0043] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0044] Example 1

[0045] like Figures 1-5As shown, an insulating support frame for railway cables is specifically composed of a frame body 1 and two cable fixing frames 4. The frame body 1 has several support platforms 2 arranged vertically, with adjacent support platforms 2 spaced apart to accommodate cable joints 100. Each support platform 2 is equipped with a grounding cable 3, which is connected to the ground to ensure reliable grounding. The two cable fixing frames 4 are located on both sides of the frame body 1, spaced apart from it. Each cable fixing frame 4 has a connecting beam 5, a fixing element 7, and a clamping assembly 6. The connecting beam 5 is connected to the frame body 1, the fixing element 7 is used to connect to a wall, the clamping assembly 6 is used to clamp the cable, and the cable fixing frame 4 is used to limit and fix the cable.

[0046] By vertically arranging several support platforms 2 on the frame 1, and placing a cable connector 100 on each support platform 2, the independent placement of the cable connector 100 facilitates maintenance and helps operators quickly eliminate the fault of loose cable connector 100. A grounding cable 3 is connected to the support platform 2 to reliably ground the support platform 2, preventing electric shock to operators and ensuring their safety. The cable fixing frame 4 is used to limit the cable at both ends of the cable connector 100 to prevent the cable at both ends of the cable connector 100 from shaking significantly, thereby preventing the cable connector 100 from detaching from the support platform 2. The cable is clamped and fixed to the cable fixing frame 4 by the clamping assembly 6. It is connected to the wall by the fixing part 7, and the insulation joint frame used for railway cables is firmly fixed to the wall. The cable fixing frame 4 is connected to the frame 1 by the connecting beam 5. There is a gap between the cable fixing frame 4 and the frame 1, and the cable between the cable fixing frame 4 and the frame 1 can move freely, which makes it easy for operators to quickly connect or disconnect the cable connector 100 and facilitates maintenance.

[0047] Specifically, the cable connector 100 consists of a male and a female connector. The equipment-side cable is fixed on a mounting bracket on one side of the frame 1, and the power supply-side cable is fixed on a mounting bracket on the other side. The power supply-side cable and the equipment-side cable are connected by connecting the male and female connectors. Several supporting platforms 2 are arranged vertically on the frame 1 to reduce space occupation and facilitate maintenance. Two cable holders 4 are symmetrically arranged on both sides of the frame 1.

[0048] In one or more embodiments, the connecting beam 5 is composed of a first connecting beam 51 and a second connecting beam 52. The first connecting beam 51 is located at the top of the cable fixing frame 4, and the second connecting beam 52 is located at the bottom of the cable fixing frame 4. The first connecting beam 51 is connected to the top of the frame 1, and the second connecting beam 52 is connected to the bottom of the frame 1. Specifically, one end of the first connecting beam 51 is connected to the cable fixing frame 4, and the other end is connected to the frame 1, so that the cable fixing frame 4 and the frame 1 are difficult to move relative to each other and are firmly fixed.

[0049] In one or more embodiments, the insulating frame for railway cables also includes a grounding main cable 8, a grounding cable 3 connected to the grounding main cable 8, the grounding main cable 8 being spaced apart from the frame 1, and the grounding cable 3 on each support platform 2 being connected to the grounding main cable 8, with one end of the grounding main cable 8 being connected to the ground to ensure reliable grounding of the support platform 2.

[0050] In one or more embodiments, the cable holder 4 is composed of a first support column 41, a second support column 42 and several crossbars 43. One end of the crossbar 43 is connected to the first support column 41 and the other end is connected to the second support column 42. Both the first support column 41 and the second support column 42 are connected to the connecting beam 5. Specifically, the cable holder 4 is ladder-shaped.

[0051] In an optional embodiment, the clamping assembly 6 includes a plurality of first clamping members 61 and a plurality of second clamping members 62. The plurality of first clamping members 61 are arranged on the first support column 41, and a second clamping member 62 is connected to each crossbar 43. Specifically, there is a gap between adjacent crossbars 43. The second clamping members 62 provided on the crossbars 43 are used to fix the cable bundle. A single cable branching from the cable bundle is fixed by the first clamping member 61 and then connected to the cable connector 100. The cable bundle is composed of multiple cables.

[0052] In an optional embodiment, both the first clamping member 61 and the second clamping member 62 include a base plate 65 and a clamping member, with the base plate 65 detachably connected to the clamping member; the base plate 65 is connected to the crossbar 43, or the base plate 65 is connected to the first support column 41; the cable is clamped and fixed between the base plate 65 and the clamping member, so that the cable is fixed.

[0053] In an optional embodiment, the clamping member includes a partition 63, and support blocks 64 are provided at both ends of the base plate 65. The support blocks 64 are detachably connected to the partition 63. A clamping space for the cable is formed between the partition 63 and the base plate 65. The support blocks 64 abut against the limiting partition 63 to prevent the cable from being over-clamped.

[0054] In one or more embodiments, the fastener 7 is provided with a positioning hole 71, which is used to connect with a bolt to the wall. Specifically, a bolt is inserted into the positioning hole 71 so that the bolt is embedded in the wall. The side of the insulation bracket used for railway cables that is operated by the operator is away from the wall, which facilitates the operation of the operator.

[0055] In one or more embodiments, the supporting platform 2 is provided with a hollow part 21, which is used to limit the cable connector 100; the cable connector 100 is placed horizontally so that both ends of the cable connector 100 overlap on the supporting platform 2, and the middle part of the cable connector 100 enters the hollow part 21, thereby limiting the cable connector 100.

[0056] In one or more embodiments, both the cable holder 4 and the frame 1 are aluminum alloy structural components. Aluminum alloy structural components have good structural strength, are not easily deformed, are lightweight, and are easy to install.

[0057] When in use, place the cable connector 100 above the hollow part 21 so that both ends of the cable connector 100 overlap the support platform 2. Adjust the cable length between the frame 1 and the cable fixing frame 4 so that the cable connector 100 is difficult to detach from the support platform 2. When vibration occurs, the elasticity of the cable itself can provide a certain buffering effect on the cable connector 100, so that the cable connector 100 is not easy to loosen.

[0058] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An insulating joint for railway cables, characterized in that, include: The frame (1) is provided with several vertically arranged support platforms (2), adjacent support platforms (2) are spaced apart, and the support platforms (2) are provided with grounding cables (3). Cable holder (4), cable holder (4) is provided on both sides of the frame (1), the cable holder (4) is spaced apart from the frame (1), the cable holder (4) is provided with connecting beam (5), fixing member (7) and clamping assembly (6), the connecting beam (5) is connected to the frame (1); the fixing member (7) is used to connect to the wall, and the clamping assembly (6) is used to clamp the cable.

2. An insulating joint for railway cables according to claim 1, characterized in that, The connecting beam (5) includes a first connecting beam (51) and a second connecting beam (52). The first connecting beam (51) is located at the top of the cable holder (4), and the second connecting beam (52) is located at the bottom of the cable holder (4). The first connecting beam (51) is connected to the top of the frame (1), and the second connecting beam (52) is connected to the bottom of the frame (1).

3. An insulating joint for railway cables according to claim 1, characterized in that, It also includes a grounding main cable (8), the grounding cable (3) is connected to the grounding main cable (8), and the grounding main cable (8) is spaced apart from the frame (1).

4. An insulating joint for railway cables according to claim 1, characterized in that, The cable holder (4) includes a first support (41), a second support (42) and several crossbars (43). One end of the crossbar (43) is connected to the first support (41) and the other end is connected to the second support (42). The first support (41) and / or the second support (42) are connected to the connecting beam (5).

5. An insulating joint for railway cables according to claim 4, characterized in that, The clamping assembly (6) includes a plurality of first clamping members (61) and a plurality of second clamping members (62). The plurality of first clamping members (61) are arranged on the first support column (41), and each of the crossbars (43) is connected to a second clamping member (62).

6. An insulating joint for railway cables according to claim 5, characterized in that, Both the first clamping member (61) and the second clamping member (62) include a base plate (65) and a clamping member. The base plate (65) is detachably connected to the clamping member. The base plate (65) is connected to the crossbar (43), or the base plate (65) is connected to the first support column (41).

7. An insulating joint for railway cables according to claim 6, characterized in that, The clamping member includes a partition (63), and the bottom plate (65) is provided with support blocks (64) at both ends. The support blocks (64) are detachably connected to the partition (63).

8. An insulating joint for railway cables according to claim 1, characterized in that, The fastener (7) is provided with a positioning hole (71), which is used to connect with a wall bolt.

9. An insulating joint for railway cables according to claim 1, characterized in that, The supporting platform (2) is provided with a hollow part (21), which is used to limit the cable connector (100).

10. An insulating joint for railway cables according to any one of claims 1-9, characterized in that, Both the frame (1) and the cable holder (4) include aluminum alloy structural components.