A non-uniform diameter grounding wire for high-altitude railway operations

Abstract

This utility model discloses a non-uniform diameter grounding wire for high-altitude railway operations, including a clamp assembly, a pole assembly, a soft-strand copper wire, and a grounding assembly. The first and second operating rods of the pole assembly have a connecting end and a handheld end, respectively. The cross-sectional diameter of the first and second operating rods gradually decreases from the handheld end to the connecting end. The clamp assemblies are correspondingly installed on the corresponding connecting ends. The soft-strand copper wire is connected to each clamp assembly and the grounding assembly. This utility model uses a frustum-shaped structure for the operating rod, shifting the center of gravity of the operating rod towards the operator's handheld position, reducing swaying during high-altitude operations and improving the safety of single-handed operation. Furthermore, the operating rods are provided in two different lengths. When grounding in a three-phase overhead configuration, a longer operating rod is used for guidance at higher positions, achieving simultaneous connection and avoiding vertical movement of the operator, significantly shortening the operation time. It also adapts to different conductor arrangements.

Description

Technical Field

[0001] This utility model relates to the field of railway power supply safety technology, specifically to a non-equal diameter grounding wire for high-altitude railway operations. Background Technology

[0002] When performing power outage maintenance, fault handling, or construction work on 10kV overhead power lines in electrified railway systems, grounding and sealing measures must be implemented in accordance with safety regulations to prevent electric shock injuries to workers caused by accidental power surges or induced voltages.

[0003] Currently, the grounding sealing devices widely used in high-altitude power supply operations typically consist of components such as clamps, insulated operating rods, soft copper wires, and grounding clamps. Operators must use an insulated rod at height to attach the clamps to the overhead conductors and connect them to the rails or grounding electrodes via soft copper wires to achieve reliable grounding.

[0004] However, the existing grounding sealing devices generally use cylindrical rods of equal length and diameter, which have a relatively high center of gravity. When operating with one hand, the center of gravity is far from the hand position and is prone to swaying, affecting the connection accuracy and work safety. At the same time, for three-phase overhead conductors arranged in a triangle, the connection height of one phase clamp is higher than that of the other two phase clamps. Therefore, the operator needs to frequently move up and down to connect the clamps, resulting in low work efficiency.

[0005] In view of the above-mentioned defects, the creator of this utility model has finally obtained this utility model after a long period of research and practice. Summary of the Invention

[0006] To address the aforementioned technical deficiencies, the present invention provides a non-uniform diameter grounding wire for high-altitude railway operations, comprising a clamp assembly, a pole assembly, a flexible copper wire, and a grounding assembly. The pole assembly includes a first operating rod and a second operating rod, both of which are frustum-shaped structures. One end of each operating rod is a connecting end, and the other end is a handheld end. The cross-sectional diameter of the first and second operating rods gradually decreases from the handheld end to the connecting end. The clamp assemblies are correspondingly mounted on their respective connecting ends. One end of the flexible copper wire is connected to each clamp assembly, and the other end is connected to the grounding assembly. The length of the second operating rod is greater than the length of the first operating rod.

[0007] Preferably, both the first and second operating levers are made of rigid insulating material.

[0008] Preferably, the wire clamp assembly includes an open wire clamp, a rod connector, and a flexible copper wire connector; both the rod connector and the flexible copper wire connector are fixedly mounted on the open wire clamp, the rod connector has a first connecting hole, the connecting end has a second connecting hole, a connecting bolt passes through the first connecting hole and the second connecting hole in sequence and is threadedly connected to a connecting nut, and the end of the flexible copper wire is fixedly connected to the flexible copper wire connector.

[0009] Preferably, the grounding assembly includes a grounding clamp, the end of the soft copper wire is fixedly connected to the grounding clamp, and the grounding clamp is used to clamp onto the rail or grounding electrode.

[0010] Preferably, the angle between the outer wall line and the axis on the radial cross-section of the first operating lever and the second operating lever is set to 5° to 15°.

[0011] Preferably, the angle between the outer wall line and the axis on the radial cross-section of the first operating lever and the second operating lever is set to 10°.

[0012] Preferably, the second operating lever includes a lever body and a telescopic rod. The lever body is configured as a frustum structure, and the telescopic rod is configured as a cylindrical rod. The telescopic rod is disposed at the handheld end of the second operating lever. The telescopic rod is coaxially connected to the lever body, and the telescopic rod and the lever body can move linearly coaxially.

[0013] Preferably, an adjustment hole is provided extending from the inner axis of the rod body, one end of the telescopic rod is disposed in the adjustment hole, and the telescopic rod is threadedly connected in the adjustment hole.

[0014] Preferably, the telescopic rod includes a connecting section and an adjusting section. The connecting section is externally threaded and is threadedly connected to the adjusting hole via the thread. The adjusting section is located outside the rod body.

[0015] Preferably, both the first and second operating levers are made of epoxy resin glass fiber reinforced composite material.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting the operating rod as a frustum structure, the center of gravity of the operating rod is biased towards the handheld end of the operator, reducing swaying during high-altitude operations and improving the safety of single-handed operation. At the same time, the operating rod is set in two different lengths so that when grounding in the case of three-phase overhead, the longer operating rod is used for the guide at the higher position to achieve the same position and avoid the operator's up and down movement, which greatly shortens the operation time. It is also compatible with different wire arrangements. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the non-equal diameter grounding wire used for high-altitude railway operations; Figure 2 This is a schematic diagram of the structure of the second operating lever; Figure 3 This is a schematic diagram of the wire clamp assembly; Figure 4 This is a schematic diagram of the structure of the connection end.

[0018] The numbers in the diagram represent: 1-Wire clamp assembly; 2-Soft strand copper wire; 3-Grounding assembly; 4-First operating lever; 5-Second operating lever; 11-Open wire clamp; 12-Rod connector; 13-Soft strand copper wire connector; 14-First connecting hole; 41-Second connecting hole; 51-Rod body; 52-Connecting section; 53-Adjusting section. Detailed Implementation

[0019] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings. Example 1

[0020] like Figures 1 to 4 As shown, Figure 1 This is a schematic diagram of the non-equal diameter grounding wire used for high-altitude railway operations; Figure 2 This is a schematic diagram of the structure of the second operating lever; Figure 3 This is a schematic diagram of the wire clamp assembly; Figure 4 This is a schematic diagram of the structure of the connection end.

[0021] The non-equal diameter grounding wire for high-altitude railway operations described in this utility model includes a clamp assembly 1, a rod assembly, a soft-strand copper wire 2, and a grounding assembly 3. The rod assembly includes a first operating rod 4 and a second operating rod 5. Both the first operating rod 4 and the second operating rod 5 are configured as frustum structures. One end of the first operating rod 4 and the second operating rod 5 is configured as a connecting end, and the other end is configured as a handheld end. The cross-sectional diameter of the first operating rod 4 and the second operating rod 5 gradually decreases from the handheld end to the connecting end. The clamp assemblies 1 are correspondingly arranged on the corresponding connecting ends. One end of the soft-strand copper wire 2 is connected to each of the clamp assemblies 1, and the other end is connected to the grounding assembly 3. The length of the second operating rod 5 is greater than the length of the first operating rod 4.

[0022] Generally, both the first operating lever 4 and the second operating lever 5 are made of rigid insulating material.

[0023] It is worth noting that, generally, the wire clamp assembly 1, the soft strand copper wire 2, and the grounding assembly 3 all adopt structural components commonly used in existing grounding sealing devices.

[0024] Preferably, the clamp assembly 1 includes an open clamp 11, a rod connector 12, and a flexible copper wire connector 13; both the rod connector 12 and the flexible copper wire connector 13 are fixedly mounted on the open clamp 11. The rod connector 12 is provided with a first connecting hole 14, and the connecting end is provided with a second connecting hole 41. A connecting bolt passes through the first connecting hole 14 and the second connecting hole 41 in sequence and is threadedly connected to a connecting nut, thereby realizing the detachable connection of the open clamp 11 at the end of the operating rod. The end of the flexible copper wire 2 is fixedly connected to the flexible copper wire connector 13 to ensure reliable electrical connection.

[0025] Preferably, the grounding assembly 3 includes a grounding clamp, and the end of the soft copper wire 2 is fixedly connected to the grounding clamp. The grounding clamp is used to clamp onto the rail or a dedicated grounding electrode to ensure a low-impedance connection with the earth and achieve reliable grounding protection.

[0026] This invention uses a frustum-shaped control lever to shift the center of gravity towards the operator's handheld end, reducing swaying during high-altitude operations and improving the safety of single-handed operation. Furthermore, the control lever is available in two different lengths. For grounding in three-phase overhead conditions, a longer lever is used to guide the connection at higher positions, allowing for simultaneous connection and avoiding vertical movement of the operator, significantly shortening operation time. It also accommodates different conductor arrangements. Example 2

[0027] The angle between the outer wall line and the axis on the radial cross-section of the first operating lever 4 and the second operating lever 5 is set to 5° to 15° to achieve a slow change in the cross-sectional diameter and ensure a reasonable structure of the operating lever components.

[0028] Preferably, the angle between the outer wall line and the axis on the radial cross-section of the first operating lever 4 and the second operating lever 5 is set to 10° to ensure the slender structure of the first operating lever 4 and the second operating lever 5 as a whole.

[0029] Preferably, the second operating lever 5 includes a lever body 51 and a telescopic rod. The lever body 51 is configured as a frustum structure, and the telescopic rod is configured as a cylindrical rod. The telescopic rod is located at the handheld end of the second operating lever 5. The telescopic rod is coaxially connected to the lever body 51, and the telescopic rod and the lever body 51 can move linearly coaxially, thereby adjusting the overall length of the second operating lever 5.

[0030] Specifically, an adjustment hole is provided on the inner axis of the rod body 51, one end of the telescopic rod is disposed in the adjustment hole, and the telescopic rod is threaded in the adjustment hole. By rotating the telescopic rod and the rod body 51 relative to each other, the overall length of the second operating rod 5 can be adjusted to accommodate the triangular arrangement of overhead conductors.

[0031] Generally, the telescopic rod includes a connecting section 52 and an adjusting section 53. The connecting section 52 is threaded on the outside and is threadedly connected to the adjusting hole. The adjusting section 53 is located on the outside of the rod body 51, which is convenient for the operator to rotate and adjust. The telescopic rod is a solid structure, which ensures that the center of gravity of the second operating rod 5 is biased towards the adjusting section 53, thus ensuring hand stability.

[0032] Traditionally, when using ground wires, workers at height need to temporarily connect the B-phase ground wire to the A and C-phase overhead lines and climb a certain distance before they can connect the B-phase ground wire to the B-phase overhead line. With this invention, workers at height can connect the B-phase ground wire by adjusting the second operating lever 5, thus completing the connection of all three-phase overhead lines at the same working position, avoiding frequent moves and improving work efficiency.

[0033] Preferably, both the first operating lever 4 and the second operating lever 5 are made of epoxy resin glass fiber reinforced composite material, which has excellent electrical insulation properties, mechanical strength and weather resistance, and is suitable for complex outdoor environments such as high voltage, high humidity and strong ultraviolet radiation.

[0034] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A non-uniform diameter grounding wire for high-altitude railway operations, characterized in that, The device includes a clamp assembly, a rod assembly, a flexible copper wire, and a grounding assembly. The rod assembly includes a first operating rod and a second operating rod, both of which are frustum-shaped structures. One end of the first and second operating rods is a connecting end, and the other end is a handheld end. The cross-sectional diameter of the first and second operating rods gradually decreases from the handheld end to the connecting end. The clamp assemblies are correspondingly mounted on the respective connecting ends. One end of the flexible copper wire is connected to each of the clamp assemblies, and the other end is connected to the grounding assembly. The length of the second operating rod is greater than the length of the first operating rod.

2. The non-uniform diameter grounding wire for high-altitude railway operations as described in claim 1, characterized in that, Both the first and second operating levers are made of rigid insulating material.

3. The non-uniform diameter grounding wire for high-altitude railway operations as described in claim 1, characterized in that, The wire clamp assembly includes an open wire clamp, a rod connector, and a soft-strand copper wire connector. Both the rod connector and the soft-strand copper wire connector are fixedly mounted on the open wire clamp. The rod connector has a first connecting hole, and the connecting end has a second connecting hole. A connecting bolt passes through the first connecting hole and the second connecting hole in sequence and is threadedly connected to a connecting nut. The end of the soft-strand copper wire is fixedly connected to the soft-strand copper wire connector.

4. The non-uniform diameter grounding wire for high-altitude railway operations as described in claim 3, characterized in that, The grounding assembly includes a grounding clamp, and the end of the soft copper wire is fixedly connected to the grounding clamp. The grounding clamp is used to hold the wire to a rail or a grounding electrode.

5. The non-uniform diameter grounding wire for high-altitude railway operations as described in claim 1, characterized in that, The angle between the outer wall line and the axis on the radial cross-section of the first operating lever and the second operating lever is set to 5° to 15°.

6. The non-uniform diameter grounding wire for high-altitude railway operations as described in claim 5, characterized in that, The angle between the outer wall line and the axis on the radial cross-section of the first and second operating levers is set to 10°.

7. The non-uniform diameter grounding wire for high-altitude railway operations as described in claim 1, characterized in that, The second operating lever includes a lever body and a telescopic rod. The lever body is configured as a frustum structure, and the telescopic rod is configured as a cylindrical rod. The telescopic rod is located at the handheld end of the second operating lever. The telescopic rod is coaxially connected to the lever body, and the telescopic rod and the lever body can move linearly coaxially.

8. The non-uniform diameter grounding wire for high-altitude railway operations as described in claim 7, characterized in that, An adjustment hole is provided extending from the inner axis of the rod body, one end of the telescopic rod is disposed in the adjustment hole, and the telescopic rod is threadedly connected in the adjustment hole.

9. The non-uniform diameter grounding wire for high-altitude railway operations as described in claim 8, characterized in that, The telescopic rod includes a connecting section and an adjusting section. The connecting section is threaded on the outside and is threadedly connected to the adjusting hole. The adjusting section is located on the outside of the rod body.

10. The non-uniform diameter grounding wire for high-altitude railway operations as described in claim 2, characterized in that, Both the first and second operating levers are made of epoxy resin glass fiber reinforced composite material.

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