A high voltage cable mounting bracket

Abstract

The present application relates to the technical field of cable support, especially relates to a high-voltage cable installation support, which comprises a vertical rod, a mounting block, a first positioning bolt and an unlocking structure, a sliding groove is arranged in the vertical rod, a threaded rod is rotationally connected in the sliding groove, a threaded sliding block is screw-connected to one end of the threaded rod, the mounting block is slidably connected in the sliding groove, the mounting block is mounted in cooperation with the threaded sliding block, a horizontal rod is rotationally connected to one end of the mounting block, and the first positioning bolt is screw-connected to the side of the mounting block close to the horizontal rod, the horizontal rod spacing can be adjusted as required through cooperation of the threaded rod, the threaded sliding block and the unlocking structure, equidistant arrangement is supported to meet the conventional laying requirement, and unequal spacing can be set according to heat dissipation and bearing requirements of cables with different diameters, special supports for cables with different specifications are not needed, equipment procurement cost is significantly reduced, construction cycle delay caused by customization is reduced, and flexibility and efficiency of high-voltage cable laying are improved.

Description

Technical Field

[0001] This invention relates to the field of cable support technology, and in particular to a high-voltage cable mounting bracket. Background Technology

[0002] In the field of high-voltage power transmission technology, high-voltage cable mounting brackets are specialized components used for laying, fixing, and stabilizing high-voltage cables. Their core function is to elevate high-voltage cables (commonly used for power transmission at voltage levels of 10kV and above, including single-core and multi-core cables) at locations far from the ground or at a predetermined height. This prevents the cables from sagging and deforming due to their own weight, and protects them from damage caused by water immersion, soil corrosion, or external impacts. Furthermore, the hierarchical arrangement of the brackets ensures that multiple cables maintain spacing that complies with power industry insulation standards, preventing safety hazards such as localized overheating and electric field interference caused by insufficient spacing. Ultimately, this ensures the continuous operation and safe use of the high-voltage power transmission system. These brackets are widely used in urban underground utility tunnels, substations, industrial parks, and along high-voltage transmission lines, and are an indispensable key supporting equipment in high-voltage cable laying construction.

[0003] Currently, most high-voltage cable mounting brackets on the market adopt a fixed-size structural design. The connection position of the horizontal and vertical bars is locked during the manufacturing stage through welding or fixing bolt assemblies. The spacing between the horizontal bars and the relative position of the horizontal and vertical bars cannot be adjusted according to actual usage requirements. The fixed-size design has significant limitations: First, different specifications of high-voltage cables (such as cables with diameters ranging from 100mm to 300mm) have different heat dissipation and load-bearing requirements for the support spacing. Fixed-spacing supports cannot accommodate the laying of multiple cable specifications, requiring the customization of custom supports for different cables during construction, increasing equipment procurement costs and construction time. Second, in the later maintenance of high-voltage cables (such as local fault repair and cable marking operations), the fixed-position crossbars will obstruct the operating area. Workers need to remove the crossbars or temporarily relocate them to obtain sufficient working space, which not only requires additional manpower for temporary cable support but also prolongs the power outage time and affects the stability of power supply. Third, when the spatial conditions of the laying scenario change (such as adjustments to the height of the pipe gallery or changes in the layout of surrounding equipment) or when the cable specifications are subsequently updated, the original fixed-size supports cannot be reused because they cannot be adjusted, and the entire set must be replaced, resulting in resource waste and increased construction costs.

[0004] Therefore, it is necessary to provide a new high-voltage cable mounting bracket to solve the above-mentioned technical problems. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a high-voltage cable mounting bracket.

[0006] The high-voltage cable mounting bracket provided by this invention includes: a vertical rod, a mounting block, a first positioning bolt, and an unlocking structure. The vertical rod has a groove inside, and a threaded rod is rotatably connected inside the groove. One end of the threaded rod is threadedly connected to a threaded slider at equal intervals. The mounting block is slidably connected inside the groove at equal intervals. The mounting block and the threaded slider are fitted together. One end of the mounting block is rotatably connected to a horizontal rod. The first positioning bolt is threadedly connected to the side of the mounting block near the horizontal rod, and second positioning bolts are threadedly connected to both sides of the mounting block. One end of the first and second positioning bolts extends into the mounting block and contacts the outer wall of the vertical rod. An unlocking structure is provided between the mounting block and the threaded slider.

[0007] Preferably, the outer wall of the threaded slider is provided with vertical friction grooves, and the weight of the threaded slider itself does not support rotation along the threaded rod when unrestricted.

[0008] Preferably, the unlocking structure includes a squeezing block, a trapezoidal top block, and a U-shaped gathering rod. The mounting block has an installation groove inside, and tension springs are symmetrically fixedly connected to the inner wall of the installation groove. The squeezing block is slidably connected to the inner wall of the installation groove along its length. One end of the tension spring is fixedly connected to one side of the squeezing block. Arc-shaped grooves are opened on the sides of the two squeezing blocks that are close to each other. Vertical friction grooves are opened on the inner walls of the two arc-shaped grooves. The two squeezing blocks are rubbed together with the vertical friction grooves of the threaded slider through the vertical friction grooves. Trapezoidal top blocks are symmetrically fixedly connected to the tops of the two squeezing blocks, and U-shaped gathering rods are inserted into the tops of the two squeezing blocks.

[0009] Preferably, the top of the U-shaped gathering rod has a through hole for avoiding the threaded rod, and the diameter of the through hole is larger than the diameter of the threaded rod. The two sides of the U-shaped gathering rod are symmetrically connected with limit bolts by threads. The inclined surfaces of the two trapezoidal top blocks are provided with limit screw holes, and one end of the limit bolt is threadedly connected to the limit screw hole.

[0010] Preferably, an ear plate is fixedly connected to one end of the mounting block near the crossbar, and a first square hole is provided in the middle of the ear plate. The end of the crossbar near the mounting block is rotatably connected to the ear plate, and a second square hole is provided at one end of the crossbar rotatably connected to the ear plate. The first square hole and the second square hole are connected by a pin.

[0011] Preferably, a base rod is fixedly connected to the bottom end of the vertical rod, and the horizontal rods and the base rod are used to support the high-voltage cable.

[0012] Preferably, the top of the threaded rod extends into the vertical rod and has an internal hexagonal groove.

[0013] Compared with related technologies, the high-voltage cable mounting bracket provided by the present invention has the following advantages:

[0014] Existing support systems, due to their fixed connection positions between horizontal and vertical bars, cannot accommodate the support requirements of high-voltage cables of different specifications (such as cables with diameters ranging from 100mm to 300mm), necessitating the customization of custom-made supports. This invention, through the cooperation of threaded rods, threaded sliders, and an unlocking structure, allows for adjustable horizontal bar spacing. It supports equidistant arrangements to meet conventional laying requirements, and also allows for unequal spacing based on the heat dissipation and load-bearing requirements of cables with different diameters. This eliminates the need for custom-made supports for different cable specifications, significantly reducing equipment procurement costs and minimizing construction delays caused by customization, thereby improving the flexibility and efficiency of high-voltage cable laying.

[0015] Existing support systems require the removal of crossbars to create operating space during cable maintenance (fault repair, marking work), which is time-consuming, labor-intensive, and necessitates temporary cable support, potentially extending power outage times. This invention addresses this by using an unlocking structure to quickly release the locking of the crossbar to be adjusted, enabling temporary height adjustments. Simultaneously, the engagement of a pin and a square hole allows the crossbar to be rotated 90° and folded away, quickly expanding operating space without removing the crossbar. This design eliminates the cumbersome steps of crossbar disassembly and repositioning, reducing manpower, significantly shortening maintenance time, effectively preventing prolonged power outages due to maintenance, and ensuring the continuous and stable operation of high-voltage power transmission systems. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the high-voltage cable mounting bracket provided by the present invention;

[0017] Figure 2 for Figure 1 A structural diagram of another state is shown;

[0018] Figure 3 for Figure 1 The diagram shows the structure of the vertical rod and the threaded rod.

[0019] Figure 4 for Figure 1 The diagram shows the overall structure of the mounting block and the crossbar.

[0020] Figure 5 for Figure 1 The diagram shows the exploded structure of the mounting block and crossbar.

[0021] Figure 6 for Figure 1 The diagram shows a side sectional view of the mounting block.

[0022] Figure 7 for Figure 1 The diagram shows the structure of the arc-shaped groove.

[0023] The following are the labels in the diagram: 1. Vertical rod; 2. Slide groove; 3. Threaded rod; 4. Threaded slider; 5. Mounting block; 6. Horizontal rod; 7. First positioning bolt; 8. Second positioning bolt; 9. Mounting groove; 10. Tension spring; 11. Extrusion block; 12. Arc groove; 13. U-shaped gathering rod; 14. Through hole; 15. Limiting bolt; 16. Limiting screw hole; 17. Ear plate; 18. First square hole; 19. Second square hole; 20. Bottom rod; 21. Hexagonal recess; 22. Trapezoidal top block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the invention and are not intended to limit the invention.

[0025] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 7 A high-voltage cable mounting bracket includes: a vertical rod 1, a mounting block 5, a first positioning bolt 7, and an unlocking structure. The vertical rod 1 has a groove 2 inside, and a threaded rod 3 is rotatably connected inside the groove 2. A threaded slider 4 is threadedly connected to one end of the threaded rod 3 at equal intervals. The mounting block 5 is slidably connected inside the groove 2 at equal intervals. The mounting block 5 and the threaded slider 4 are fitted together. A horizontal rod 6 is rotatably connected to one end of the mounting block 5. The first positioning bolt 7 is threadedly connected to the side of the mounting block 5 closest to the horizontal rod 6. Second positioning bolts 8 are threadedly connected to both sides of the mounting block 5. One end of the first positioning bolt 7 and the second positioning bolt 8 extends into the mounting block 5 and contacts the outer wall of the vertical rod 1. The mounting block 5 and the threaded slider 4 are connected... An unlocking structure is provided. The outer wall of the threaded slider 4 is provided with vertical friction texture. The weight of the threaded slider 4 does not support rotation along the threaded rod 3 when unrestricted. An ear plate 17 is fixedly connected to the end of the mounting block 5 near the crossbar 6. A first square hole 18 is opened in the middle of the ear plate 17. The end of the crossbar 6 near the mounting block 5 is rotatably connected to the ear plate 17. A second square hole 19 is opened at the end of the crossbar 6 rotatably connected to the ear plate 17. The first square hole 18 and the second square hole 19 are connected by a pin. A bottom rod 20 is fixedly connected to the bottom end of the vertical rod 1. Both the crossbar 6 and the bottom rod 20 are used to support the high-voltage cable. The top end of the threaded rod 3 extends into the vertical rod 1 and has an internal hexagonal groove 21.

[0027] Please see Figures 4 to 7The unlocking structure includes a squeezing block 11, a trapezoidal top block 22, and a U-shaped gathering rod 13. An installation groove 9 is provided inside the mounting block 5. Tension springs 10 are symmetrically fixed to the inner wall of the mounting groove 9. The squeezing blocks 11 are slidably connected to the inner wall of the mounting groove 9 along its length. One end of the tension spring 10 is fixedly connected to one side of the squeezing block 11. Arc-shaped grooves 12 are provided on the sides of the two squeezing blocks 11 that are close to each other. Vertical friction grooves are provided on the inner walls of the two arc-shaped grooves 12. The two squeezing blocks 11 interact with the threaded slider 4 through the vertical friction grooves. The vertical friction texture is used for friction connection. The top ends of the two extrusion blocks 11 are symmetrically fixed with trapezoidal top blocks 22. The top ends of the two extrusion blocks 11 are inserted with U-shaped gathering rods 13. The top end of the U-shaped gathering rods 13 is provided with a through hole 14 for avoiding the threaded rod 3. The diameter of the through hole 14 is larger than the diameter of the threaded rod 3. The two sides of the U-shaped gathering rods 13 are symmetrically threaded with limit bolts 15. The inclined surfaces of the two trapezoidal top blocks 22 are provided with limit screw holes 16. One end of the limit bolt 15 is threadedly connected to the limit screw hole 16.

[0028] The working principle of the high-voltage cable mounting bracket provided by this invention is as follows:

[0029] The core components of the high-voltage cable mounting bracket include: a vertical rod 1 (with an internal groove 2 and a threaded rod 3), a threaded slider 4 (with the threaded rod 3 fitted on it and vertical friction texture on the outer wall), a mounting block 5 (which cooperates with the threaded slider 4 and connects to the horizontal rod 6 at one end), positioning bolts (first positioning bolt 7 and second positioning bolt 8), an unlocking structure (compression block 11, trapezoidal top block 22, U-shaped gathering rod 13, and tension spring 10), a pin (which cooperates with the square hole of the ear plate 17 to fix the angle of the horizontal rod 6), and a bottom rod 20 (which, together with the horizontal rod 6, supports the cable).

[0030] During initial assembly:

[0031] The internal hexagonal groove 21 at the top of the threaded rod 3 can be driven to rotate by an internal hexagonal wrench. The threaded slider 4 cannot rotate independently along the threaded rod 3 due to its own weight, and its vertical friction texture is closely fitted with the friction texture of the arc groove 12 of the extrusion block 11 in the mounting block 5.

[0032] The U-shaped gathering rod 13 is inserted into the top of the two extrusion blocks 11 and locked with the limit screw 16 of the trapezoidal top block 22 by the limit bolt 15, so that the extrusion blocks 11 are kept close together under the extrusion of the U-shaped gathering rod 13, and the threaded slider 4 and the mounting block 5 are fixed together by the friction texture.

[0033] After the first positioning bolt 7 and the second positioning bolt 8 are tightened, their ends extend into the interior of the mounting block 5 and press against the outer wall of the vertical rod 1, further locking the mounting block 5 at a specific height of the vertical rod 1. At this time, the horizontal rod 6 and the bottom rod 20 together form a stable cable support structure.

[0034] II. Principle of Adjusting the Spacing of the Standard Crossbar 6

[0035] When it is necessary to set a fixed spacing (equal or unequal) between the crossbars 6 according to the cable laying requirements, the operation logic is as follows:

[0036] Locking non-adjustable crossbar 6:

[0037] For the horizontal bar 6 that does not need to be moved, keep its corresponding first positioning bolt 7 and second positioning bolt 8 in a tightened state. The second positioning bolt 8 presses against the outer wall of the vertical bar 1, restricting the mounting block 5 from sliding or rotating along the vertical bar 1. At the same time, the limiting bolt 15 of the U-shaped gathering rod 13 remains locked, and the squeezing block 11 fixes the threaded slider 4 through the friction texture, so that the position of the non-adjustable horizontal bar 6 is completely fixed, avoiding displacement in subsequent operations.

[0038] Unlock the threaded fit of the crossbar 6 to be adjusted:

[0039] For the crossbar 6 that needs adjustment, first unscrew the limiting bolt 15 on its mounting block 5 and pull out the U-shaped gathering rod 13 (the through hole 14 of the U-shaped gathering rod 13 can avoid the threaded rod 3 to ensure smooth pull-out); at this time, the tension spring 10 in the mounting groove 9 releases its elastic force, causing the two extrusion blocks 11 to move away from each other, and the friction texture of the arc groove 12 of the extrusion block 11 disengages from the friction texture of the threaded slider 4. The threaded slider 4 is no longer restricted by the extrusion block 11 and can freely rise and fall with the rotation of the threaded rod 3.

[0040] Adjusting the height of drive threaded rod 3:

[0041] Insert an Allen wrench into the Allen groove 21 at the top of the threaded rod 3, and turn the threaded rod 3 clockwise or counterclockwise:

[0042] When the threaded rod 3 rotates, the locked non-adjustable crossbar 6 is fixed by the mounting block 5, and its corresponding threaded slider 4 is restricted by the mounting block 5 and cannot rotate, only remaining stationary along the threaded trajectory of the threaded rod 3;

[0043] The threaded slider 4 of the crossbar 6 to be adjusted is not restricted by the squeezing block 11. It slides up and down along the slide groove 2 as the threaded rod 3 rotates, thereby driving the mounting block 5 and the crossbar 6 to rise and fall until the target spacing is reached.

[0044] Relock the adjusted position:

[0045] After the height of the crossbar 6 is determined, the U-shaped gathering rod 13 is reinserted into the top of the two extrusion blocks 11, so that the inner wall of the U-shaped gathering rod 13 presses against the inclined surface of the trapezoidal top block 22, forcing the two extrusion blocks 11 to come together, and the friction texture of the arc groove 12 is once again in contact with the friction texture of the threaded slider 4; then tighten the limiting bolt 15 to fix the position of the U-shaped gathering rod 13 and ensure that the extrusion block 11 continuously locks the threaded slider 4; finally tighten the first positioning bolt 7 and the second positioning bolt 8, and tighten the bolt against the outer wall of the vertical rod 1 to double lock the mounting block 5, thus completing the adjustment of the crossbar 6 spacing.

[0046] III. Principle of temporary adjustment during maintenance (temporary height adjustment / crossbar 6-fold)

[0047] 1. Temporary height adjustment (to expand operating space)

[0048] When repairing a section of cable, if it is necessary to temporarily raise the upper crossbar 6 to increase operating space, the operating procedure is the same as "regular adjustment", but it does not need to be locked for a long time:

[0049] Unlock only the crossbar 6 that needs temporary adjustment (unscrew the limit bolt 15 and pull out the U-shaped gathering rod 13), and rotate the threaded rod 3 to raise it;

[0050] After the maintenance is completed, rotate the threaded rod 3 in the opposite direction to reset the crossbar 6, then reassemble the U-shaped gathering rod 13, tighten the positioning bolts, and restore the original support state.

[0051] 2. Crossbar 6-fold adjustment (90° rotation to avoid collision)

[0052] When maintenance space is insufficient, the operating range can be further expanded by folding the crossbar 6, as follows:

[0053] The crossbar 6 and the mounting block 5 are rotatably connected by the ear plate 17: the ear plate 17 has a first square hole 18 in the middle and a second square hole 19 at the end of the crossbar 6 near the ear plate 17. In the initial state, the pin passes through the two square holes to fix the crossbar 6 in a horizontal support state.

[0054] When folding, pull out the pin. Since both the square hole and the pin are square designs, the crossbar 6 can only rotate 90° around the ear plate 17 (to avoid excessive rotation that could cause structural confusion). It can be rotated to a vertical position (fitting the vertical bar 1) and completely avoids the operating area.

[0055] After maintenance, rotate the crossbar 6 back to the horizontal position so that the first square hole 18 and the second square hole 19 are aligned, and reinsert the pin to restore the supporting function of the crossbar 6.

[0056] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A high-voltage cable mounting bracket, characterized in that, include: A vertical rod (1) has a groove (2) inside. A threaded rod (3) is rotatably connected inside the groove (2). A threaded slider (4) is connected to one end of the threaded rod (3) by a threaded thread at equal intervals. The outer wall of the threaded slider (4) is provided with vertical friction marks. When the threaded slider (4) is unrestricted, its own weight does not support rotation along the threaded rod (3). Mounting block (5), the sliding groove (2) is equidistantly connected to mounting block (5), mounting block (5) is installed in conjunction with threaded slider (4), and one end of mounting block (5) is rotatably connected to cross bar (6); The first positioning bolt (7) is threaded on one side of the mounting block (5) near the crossbar (6), and the second positioning bolt (8) is threaded on both sides of the mounting block (5). One end of the first positioning bolt (7) and the second positioning bolt (8) extends into the interior of the mounting block (5) and contacts the outer wall of the vertical bar (1). The unlocking structure is provided between the mounting block (5) and the threaded slider (4); the unlocking structure includes a squeezing block (11), a trapezoidal top block (22) and a U-shaped gathering rod (13). The mounting block (5) has an installation groove (9) inside. A tension spring (10) is symmetrically fixedly connected to the inner wall of the mounting groove (9). The squeezing block (11) is slidably connected to the inner wall of the mounting groove (9) along the length direction. One end of the tension spring (10) is fixedly connected to one side of the squeezing block (11). An arc groove (12) is provided on the side of the two squeezing blocks (11) that are close to each other. Vertical friction textures are provided on the inner wall of the two arc grooves (12). The two squeezing blocks (11) are rubbed together with the vertical friction textures of the threaded slider (4) through the vertical friction textures.

2. The high-voltage cable mounting bracket according to claim 1, characterized in that, The top ends of the two extrusion blocks (11) are symmetrically fixedly connected with trapezoidal top blocks (22), and the top ends of the two extrusion blocks (11) are inserted with U-shaped gathering rods (13).

3. The high-voltage cable mounting bracket according to claim 2, characterized in that, The top of the U-shaped gathering rod (13) is provided with a through hole (14) for avoiding the threaded rod (3), and the diameter of the through hole (14) is larger than the diameter of the threaded rod (3). The U-shaped gathering rod (13) is symmetrically threaded with limit bolts (15) on both sides. The inclined surfaces of the two trapezoidal top blocks (22) are provided with limit screw holes (16). One end of the limit bolt (15) is threadedly connected to the limit screw hole (16).

4. The high-voltage cable mounting bracket according to claim 1, characterized in that, The mounting block (5) is fixedly connected to an ear plate (17) at one end near the crossbar (6). The ear plate (17) has a first square hole (18) in the middle. The crossbar (6) is rotatably connected to the ear plate (17) at one end near the mounting block (5). The crossbar (6) is rotatably connected to the ear plate (17) at one end. A second square hole (19) is provided at the other end. The first square hole (18) and the second square hole (19) are connected by a pin.

5. The high-voltage cable mounting bracket according to claim 1, characterized in that, The bottom end of the vertical rod (1) is fixedly connected to the bottom rod (20), and several of the horizontal rods (6) and the bottom rod (20) are used to support the high-voltage cable.

6. The high-voltage cable mounting bracket according to claim 1, characterized in that, The top of the threaded rod (3) extends into the vertical rod (1) and has an internal hexagonal groove (21).

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