Buried high-voltage cable gap bridge protection device

Abstract

The invention relates to a buried high-voltage cable gap bridge protection device which comprises a wall type support, a cable positioning assembly and a supporting bracket, the whole wall type support is of a triangular structure, a U-shaped seat is arranged above the wall type support, the cable positioning assembly is arranged in the front of the interior of the U-shaped seat, and the supporting bracket is arranged in the interior of the U-shaped seat relative to the rear of the cable positioning assembly. The two sides of the supporting bracket are symmetrically provided with a plurality of groups of first cable clamping protection assemblies, and the middle part of the supporting bracket is symmetrically provided with a group of second cable clamping protection assemblies. The device has the advantages of being simple in structure, good in protection effect and capable of reducing accidents.

Description

Technical Field

[0001] The invention belongs to the technical field of high-voltage cable supports, and in particular relates to an underground high-voltage cable bridge protection device. Background Art

[0002] When constructing infrastructure such as residential buildings, office buildings, factories, mines, shopping malls or hospitals in cities, the laying of power lines must be carried out first. When laying lines from the first-built urban area to the later-built urban area, some of them need to use highway bridges, special railway bridges leading to factories and mines, or high-voltage cables on the outer surface of buildings. These high-voltage cables are directly led out by underground high-voltage cables in the built-up area, and then enter the underground again after crossing the bridge. At present, the high-voltage cables are directly exposed and fixed to the outer surface of the bridge or building. Due to the action of external forces such as wind, the high-voltage cables shake and rub against the outer surface of the bridge or building, resulting in serious wear of the high-voltage cables, especially the high-voltage cables fixed at the angle iron brackets. Because they are rigidly fixed, it is easy to pierce the outer skin of the high-voltage cables, forming a potential accident hazard; therefore, it is very necessary to provide a buried high-voltage cable bridge protection device with a simple structure, good protection effect and reduced accident occurrence. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an underground high-voltage cable bridge protection device which has a simple structure, good protection effect and reduces the occurrence of accidents.

[0004] The objective of the present invention is achieved in this way: a buried high-voltage cable bridge protection device, which includes a wall bracket, a cable positioning assembly and a support bracket, the wall bracket is overall in a triangular structure, a U-shaped seat is arranged above the wall bracket, a cable positioning assembly is arranged in the front of the U-shaped seat, a support bracket is arranged in the rear of the U-shaped seat relative to the cable positioning assembly, a plurality of groups of first cable clamping protection assemblies are symmetrically installed on both sides of the support bracket, and a group of second cable clamping protection assemblies are symmetrically arranged in the middle of the support bracket.

[0005] The wall bracket includes a longitudinal plate, a transverse plate and an inclined plate, which are an integrally formed structure, and the upper and lower ends of the longitudinal plate extend out of the transverse plate and the inclined plate, and the end of the transverse plate away from the longitudinal plate extends out of the inclined plate; the upper and lower sides of the longitudinal plate are provided with mounting holes inside, which are used to fix the wall bracket to the outer surface of a bridge or a building; the upper and lower sides of the transverse plate are provided with limit card protrusions, and the inner side of the limit card protrusions is provided with a plurality of connection holes arranged in sequence at intervals, which are used to fix the U-shaped seat to the transverse plate.

[0006] The cable positioning assembly includes side plates installed on both sides of the U-shaped seat, the inner sides of the side plates are provided with frame, the inner sides of the frame are provided with slots, the inner sides of the slots are provided with longitudinally arranged spring rods, the spring rods are provided with moving blocks, the inner sides of the moving blocks are provided with a group of dovetail grooves, and upper positioning plates and lower positioning plates arranged up and down are movably installed between the moving blocks.

[0007] Both ends of the upper positioning plate and the lower positioning plate are slidably connected to the corresponding dovetail slide grooves respectively. U-shaped grooves are arranged inside both ends of the upper positioning plate. Fastening bolts are arranged inside the U-shaped grooves. The lower ends of the fastening bolts are hinged to the lower positioning plate.

[0008] Several upper positioning grooves are arranged inside the upper positioning plate from left to right, and protective plates are arranged inside the upper positioning grooves. The protective plates are connected to the upper positioning grooves through multiple springs arranged along the circumference of the center of the protective plate; multiple lower positioning grooves corresponding to the upper positioning grooves are arranged inside the lower positioning plate from left to right.

[0009] The supporting bracket includes a bracket body, and multiple groups of L-shaped brackets for installing the first cable clamping and protective components are arranged on the left and right sides of the bracket body. A group of through holes for installing the second cable clamping and protective components are arranged in the middle of the bracket body, and a group of openings for fastening the second cable clamping and protective components are arranged at the corresponding through holes above the bracket body.

[0010] The first cable clamping and protecting assembly comprises a vertical rod, one side of which is provided with an elastic rubber clamping sleeve with a side opening, and the opening of the elastic rubber clamping sleeve is connected by a locking bolt.

[0011] The second cable clamping and protection assembly includes an externally threaded sleeve inserted into the through hole, the externally threaded sleeve is fastened to the support bracket through a nut, a group of screw hole seats are symmetrically arranged in front of the externally threaded sleeve, a group of clamping and protection sleeves are symmetrically arranged on the upper and lower sides of the front of the externally threaded sleeve, and the clamping and protection sleeves are connected by a straight bolt that passes through the screw hole seats.

[0012] The beneficial effects of the present invention are as follows: the present invention is a buried high-voltage cable bridge protection device. During use, the present invention fixes the device to the surface of a bridge or a building through a wall bracket, and has good stability and high mechanical strength. A cable positioning component is used to pre-position a single or multiple cables, and then a cable clamping protection component arranged on the support bracket is used to effectively clamp and protect the cables. The cable positioning component and the cable clamping protection component form double protection, which effectively prevents the hidden danger of accidents in which the outer skin of the high-voltage cable is punctured, and the arrangement of the upper positioning plate, the lower positioning plate and the support bracket can effectively increase the impact resistance. In addition, the moving block is connected to the spring rod arranged inside the frame, which can provide stable and reliable support for the cable's own weight. The present invention has the advantages of simple structure, good protection effect and reduced accident occurrence. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the present invention.

[0014] Figure 2 It is a schematic structural diagram of the support bracket of the present invention.

[0015] Figure 3 It is a schematic structural diagram of the wall bracket of the present invention.

[0016] Figure 4 It is a schematic structural diagram of the cable positioning assembly of the present invention.

[0017] Figure 5 For the present invention Figure 4 Schematic diagram of part of the structure.

[0018] Figure 6 For the present invention Figure 2 Schematic diagram of part of the structure.

[0019] Figure 7 It is a schematic structural diagram of the first cable clamping and protecting assembly of the present invention.

[0020] Figure 8 This is a schematic structural diagram of the second cable clamping protection assembly of the present invention.

[0021] In the figure: 1, wall bracket 11, longitudinal plate 12, mounting hole 13, transverse plate 14, limit card protrusion 15, connecting hole 16, inclined plate 2, U-shaped seat 3, cable positioning assembly 31, side plate 32, frame 33, slot 34, spring rod 35, moving block 36, dovetail slide 37, upper positioning plate 38, lower positioning plate 39, U-shaped groove 301, fastening bolt 302, upper positioning groove 303, protective plate 304, spring 305, lower positioning groove 4, support bracket 41, bracket body 42, L-shaped bracket 43, through hole 44, opening 5, first cable clamping protection assembly 51, vertical rod 52, elastic rubber clamping sleeve 53, locking bolt 6, second cable clamping protection assembly 61, external threaded sleeve 62, nut 63, screw hole seat 64, clamping protection sleeve 65, flat bolt. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings. Example 1

[0023] like Figure 1-8 As shown, a buried high-voltage cable bridge protection device includes a wall bracket 1, a cable positioning component 3 and a support bracket 4. The wall bracket 1 is an overall triangular structure, a U-shaped seat 2 is arranged above the wall bracket 1, the cable positioning component 3 is arranged in the front of the U-shaped seat 2, and a support bracket 4 is arranged in the rear of the U-shaped seat 2 relative to the cable positioning component 3. Several groups of first cable clamping protection components 5 are symmetrically installed on both sides of the support bracket 4, and a group of second cable clamping protection components 6 are symmetrically arranged in the middle of the support bracket 4.

[0024] The wall bracket 1 includes a longitudinal plate 11, a transverse plate 13 and an inclined plate 16, wherein the longitudinal plate 11, the transverse plate 13 and the inclined plate 16 are an integrally formed structure, and the upper and lower ends of the longitudinal plate 11 extend out of the transverse plate 13 and the inclined plate 16, and the end of the transverse plate 13 away from the longitudinal plate 11 extends out of the inclined plate 16; the interior of the upper and lower sides of the longitudinal plate 11 are both provided with mounting holes 12 for fixing the wall bracket 1 to the outer surface of a bridge or a building; the upper and lower sides of the transverse plate 13 are both provided with limit card protrusions 14, and the inner side of the limit card protrusions 14 are sequentially spaced apart with a plurality of connection holes 15 for fixing the U-shaped seat 2 to the transverse plate 13.

[0025] The cable positioning assembly 3 includes side plates 31 installed on both sides of the U-shaped seat 2, the inner sides of the side plates 31 are provided with frame 32, the frame 32 is provided with slots 33, the slots 33 are provided with spring rods 34 arranged longitudinally, the spring rods 34 are provided with moving blocks 35, the moving blocks 35 are provided with a group of dovetail grooves 36, and an upper positioning plate 37 and a lower positioning plate 38 arranged vertically are movably installed between the moving blocks 35.

[0026] Both ends of the upper positioning plate 37 and the lower positioning plate 38 are slidably connected to the corresponding dovetail grooves 36 respectively. U-shaped grooves 39 are provided inside both ends of the upper positioning plate 37. Fastening bolts 301 are provided inside the U-shaped grooves 39. The lower ends of the fastening bolts 301 are hinged to the lower positioning plate 38.

[0027] A plurality of upper positioning grooves 302 are arranged inside the upper positioning plate 37 from left to right, and a protective plate 303 is arranged inside each of the upper positioning grooves 302. The protective plate 303 is connected to the upper positioning groove 302 through a plurality of springs 304 arranged circumferentially along the center of the protective plate 303; a plurality of lower positioning grooves 305 corresponding to the upper positioning grooves 302 are arranged inside the lower positioning plate 38 from left to right.

[0028] In this embodiment, the working principle of the cable positioning assembly is: first, the spacing between the upper positioning plate and the lower positioning plate is adjusted according to the cable diameter specification, that is, the upper positioning plate is slid along the dovetail groove inside the moving block, and then the cable is passed through the space formed by the upper positioning groove and the lower positioning groove, and then the fastening bolt is rotated with the hinge between the lower end of the fastening bolt and the lower positioning plate as the rotation point, so that the upper end of the fastening bolt falls into the groove inside the upper positioning plate, and then the fastening bolt is tightened; since the protective plate is connected to the upper positioning groove by a plurality of springs arranged along the circumference of the center of the protective plate, it is possible to use the cable positioning assembly to pre-position a single or multiple cables, and at the same time, the protective plate and springs can be used to provide a certain protection effect on the cables to avoid excessive pre-positioning pressure that damages the outer surface of the cable.

[0029] The present invention is a buried high-voltage cable bridge protection device. In use, the present invention fixes the device to the surface of a bridge or a building through a wall bracket 1, and has good stability and high mechanical strength. A cable positioning component 3 is used to pre-position a single or multiple cables, and then a cable clamping protection component arranged on a support bracket 4 is used to effectively clamp and protect the cables. The cable positioning component 3 and the cable clamping protection component form double protection, which effectively prevents the hidden danger of accidents in which the outer skin of the high-voltage cable is punctured, and the arrangement of an upper positioning plate 37, a lower positioning plate 38 and a support bracket 4 can effectively increase the impact resistance. In addition, a moving block 35 is connected to a spring rod 34 arranged inside a frame 32, which can provide a stable and reliable support for the cable's own weight. The present invention has the advantages of simple structure, good protection effect, and reduced accident occurrence. Example 2

[0030] like Figure 1-8 As shown, a buried high-voltage cable bridge protection device includes a wall bracket 1, a cable positioning component 3 and a support bracket 4. The wall bracket 1 is an overall triangular structure, a U-shaped seat 2 is arranged above the wall bracket 1, the cable positioning component 3 is arranged in the front of the U-shaped seat 2, and a support bracket 4 is arranged in the rear of the U-shaped seat 2 relative to the cable positioning component 3. Several groups of first cable clamping protection components 5 are symmetrically installed on both sides of the support bracket 4, and a group of second cable clamping protection components 6 are symmetrically arranged in the middle of the support bracket 4.

[0031] The supporting bracket 4 includes a bracket body 41, and a plurality of groups of L-shaped brackets 42 for installing the first cable clamping protection component 5 are arranged on the left and right sides of the bracket body 41. A group of through holes 43 for installing the second cable clamping protection component 6 is arranged in the middle of the bracket body 41, and a group of openings 44 for fastening the second cable clamping protection component 6 are arranged above the bracket body 41 corresponding to the through holes 43.

[0032] The first cable clamping protection component 5 includes a vertical rod 51 , and an elastic rubber clamping sleeve 52 with a side opening is provided on one side of the vertical rod 51 . The opening of the elastic rubber clamping sleeve 52 is connected by a locking bolt 53 .

[0033] In this embodiment, the working principle of the first cable clamping protection component is: the first cable clamping protection component is installed inside the L-shaped bracket through a vertical rod, and the opening of the elastic rubber clamping sleeve corresponds to the opening of the L-shaped bracket (or the opening of the elastic rubber clamping sleeve corresponds to the non-opening of the L-shaped bracket), and then the cable is passed through the elastic rubber clamping sleeve and tightened with a locking bolt to achieve effective and reliable clamping and fixation of the cable through the elastic rubber clamping sleeve.

[0034] The second cable clamping protection component 6 includes an externally threaded sleeve 61 inserted into the through hole 43, the externally threaded sleeve 61 is fastened to the support bracket 4 through a nut 62, a group of screw hole seats 63 are symmetrically arranged in front of the externally threaded sleeve 61, and a group of clamping protection sleeves 64 are symmetrically arranged on the upper and lower sides of the front of the externally threaded sleeve 61, and the clamping protection sleeves 64 are connected by a straight bolt 65 that penetrates the screw hole seats 63.

[0035] In this embodiment, the working principle of the second cable clamping protection component is as follows: the second cable clamping protection component is located in the through hole, and the external threaded end of the external threaded sleeve extends out of the through hole, and then is threadedly connected to the external threaded end through a nut to fix the second cable clamping protection component to the support bracket. At this time, the slotted bolt just corresponds to the corresponding opening (in actual use, in order to avoid the misalignment of the slotted bolt and the opening, the opening can be set as a long waist-shaped structure opening), and then the cable is passed through the second cable clamping protection component, and a screwdriver is inserted into the opening and the slotted bolt is tightened to achieve effective and reliable clamping and fixation of the cable through the clamping protection sleeve.

[0036] The present invention is a buried high-voltage cable bridge protection device. In use, the present invention fixes the device to the surface of a bridge or a building through a wall bracket 1, and has good stability and high mechanical strength. A cable positioning component 3 is used to pre-position a single or multiple cables, and then a cable clamping protection component arranged on a support bracket 4 is used to effectively clamp and protect the cables. The cable positioning component 3 and the cable clamping protection component form double protection, which effectively prevents the hidden danger of accidents in which the outer skin of the high-voltage cable is punctured, and the arrangement of an upper positioning plate 37, a lower positioning plate 38 and a support bracket 4 can effectively increase the impact resistance. In addition, a moving block 35 is connected to a spring rod 34 arranged inside a frame 32, which can provide a stable and reliable support for the cable's own weight. The present invention has the advantages of simple structure, good protection effect, and reduced accident occurrence.

Claims

1. A buried high voltage cable bridge protection device, comprising a wall bracket, a cable positioning assembly and a support bracket, characterized in that: The wall bracket is generally triangular in structure, a U-shaped seat is arranged above the wall bracket, a cable positioning assembly is arranged at the front of the U-shaped seat, a support bracket is arranged at the rear of the U-shaped seat relative to the cable positioning assembly, several groups of first cable clamping protection assemblies are symmetrically installed on both sides of the support bracket, and a group of second cable clamping protection assemblies are symmetrically arranged in the middle of the support bracket.

2. The underground high-voltage cable bridge protection device according to claim 1, characterized in that: The wall bracket includes a longitudinal plate, a transverse plate and an inclined plate, which are an integrally formed structure, and the upper and lower ends of the longitudinal plate extend out of the transverse plate and the inclined plate, and the end of the transverse plate away from the longitudinal plate extends out of the inclined plate; the upper and lower sides of the longitudinal plate are provided with mounting holes inside, which are used to fix the wall bracket to the outer surface of a bridge or a building; the upper and lower sides of the transverse plate are provided with limit card protrusions, and the inner side of the limit card protrusions is provided with a plurality of connection holes arranged in sequence at intervals, which are used to fix the U-shaped seat to the transverse plate.

3. A buried high voltage cable bridge protection device as claimed in claim 2, characterized in that: The cable positioning assembly includes side plates installed on both sides of the U-shaped seat, the inner sides of the side plates are provided with frame, the inner sides of the frame are provided with slots, the inner sides of the slots are provided with longitudinally arranged spring rods, the spring rods are provided with moving blocks, the inner sides of the moving blocks are provided with a group of dovetail grooves, and upper positioning plates and lower positioning plates arranged up and down are movably installed between the moving blocks.

4. A buried high voltage cable bridge protection device as claimed in claim 3, characterized in that: Both ends of the upper positioning plate and the lower positioning plate are slidably connected to the corresponding dovetail slide grooves respectively. U-shaped grooves are arranged inside both ends of the upper positioning plate. Fastening bolts are arranged inside the U-shaped grooves. The lower ends of the fastening bolts are hinged to the lower positioning plate.

5. The underground high-voltage cable bridge protection device according to claim 4, characterized in that: Several upper positioning grooves are arranged inside the upper positioning plate from left to right, and protective plates are arranged inside the upper positioning grooves. The protective plates are connected to the upper positioning grooves through multiple springs arranged along the circumference of the center of the protective plate; multiple lower positioning grooves corresponding to the upper positioning grooves are arranged inside the lower positioning plate from left to right.

6. The underground high-voltage cable bridge protection device according to claim 5, characterized in that: The supporting bracket includes a bracket body, and multiple groups of L-shaped brackets for installing the first cable clamping and protective components are arranged on the left and right sides of the bracket body. A group of through holes for installing the second cable clamping and protective components are arranged in the middle of the bracket body, and a group of openings for fastening the second cable clamping and protective components are arranged at the corresponding through holes above the bracket body.

7. A buried high voltage cable bridge protection device as claimed in claim 6, characterized in that: The first cable clamping and protecting assembly comprises a vertical rod, one side of which is provided with an elastic rubber clamping sleeve with a side opening, and the opening of the elastic rubber clamping sleeve is connected by a locking bolt.

8. The underground high-voltage cable bridge protection device according to claim 7, characterized in that: The second cable clamping and protection assembly includes an externally threaded sleeve inserted into the through hole, the externally threaded sleeve is fastened to the support bracket through a nut, a group of screw hole seats are symmetrically arranged in front of the externally threaded sleeve, a group of clamping and protection sleeves are symmetrically arranged on the upper and lower sides of the front of the externally threaded sleeve, and the clamping and protection sleeves are connected by a straight bolt that passes through the screw hole seats.

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