Door-shaped high-voltage cable bridge structure

Abstract

The utility model belongs to the technical field of power transmission line engineering, and particularly relates to a door-shaped high-voltage cable bridge structure which comprises profile steel stand columns, profile steel beams and cable supports, the bottoms of the profile steel stand columns are fixed to a foundation, and the side walls of the tops of the profile steel stand columns are fixed to profile steel longitudinal beams and profile steel cross beams. The plurality of profile steel longitudinal beams and the plurality of profile steel cross beams are vertically fixed; cable supports are fixed to the tops of the profile steel stand columns and the profile steel beams and comprise vertical limbs and supporting arms, the vertical limbs comprise two sets of first short vertical limbs on the inner side of the cable supports and second short vertical limbs on the outer side of the cable supports, the supporting arms are arranged in multiple layers, one ends of the supporting arms are fixed to the second short vertical limbs, and the other ends of the supporting arms are fixed to the second short vertical limbs. The top of the inner end of the supporting arm on the uppermost layer is fixed with the bottom of a first short vertical limb, multiple layers of supporting arms are arranged in the cable support, different supporting arms can be connected with different cable fixing pieces, and the effect that all cables are convenient to supervise and maintain is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of power transmission line engineering, in particular to a gate-shaped high-voltage cable bridge structure. Background Art

[0002] With the rapid development of industrial parks in various places, there are many traffic roads, ground thermal pipelines, chemical pipelines, underground water supply and drainage trenches, and direct buried cable lines in the parks, and the contradiction of land use has gradually become prominent. As the energy artery of the industrial park, the high-voltage cable line is a key factor restricting industrial development. The cable adopts the traditional underground trench laying method, which requires early relocation or protection of surrounding pipelines. The relocation cost is high, the cycle is long, the difficulty is great, and the reliability of the protection measures is low. In addition, a large amount of toxic and harmful gases in the park will be deposited in the traditional underground cable trench, and the operation and maintenance risks are high. It can be seen that choosing a suitable power transmission channel is particularly important.

[0003] At present, the commonly used cable tray structure is mainly used to lay low-voltage cable lines such as 1kV, 220V, and 380V. Cable lines of different circuits are often laid in the same trough box, which is not conducive to supervision and maintenance. Utility Model Content

[0004] In view of the problems existing in the background technology, the utility model provides a gate-shaped high-voltage cable bridge structure, which has multiple layers of supporting arms in the cable support. Different supporting arms can be connected to different cable fixings, which makes it easier to supervise and maintain each cable.

[0005] The technical solution of the utility model is as follows:

[0006] A gate-shaped high-voltage cable bridge structure comprises steel columns, steel beams and cable supports, wherein the bottom of the steel columns is fixed to a foundation, the top side walls of the steel columns are fixed to steel longitudinal beams and steel cross beams, and a plurality of steel longitudinal beams are fixed vertically to a plurality of steel cross beams; cable supports are fixed to the tops of the steel columns and steel beams, and the cable supports comprise vertical limbs and supporting arms, wherein the vertical limbs comprise two groups of first short vertical limbs on the inner side of the cable support and a second short vertical limb on the outer side of the cable support, the supporting arm is provided with multiple layers, one end of the supporting arm is fixed to the second short vertical limb, the top of the inner end of the uppermost supporting arm is fixed to the bottom of a first short vertical limb, and the bottom of the inner end of the lowermost supporting arm is fixed to the top of another first short vertical limb.

[0007] Furthermore, a haunch plate is fixed between the top side wall of the steel column and the steel beam.

[0008] Furthermore, a grounding terminal plate is fixed at the bottom of the steel column, and the grounding terminal plate is provided with a grounding hole.

[0009] Furthermore, the bottom of the vertical limb is fixed to the fixed plate, the bottom of the bottom fixed plate is fixed to the top of the steel grating plate, and the bottom of the steel grating plate is fixed to the top of the steel beam; the top of the vertical limb is fixed to the bottom of another fixed plate, and the top of the top fixed plate is fixed to the top aluminum plate.

[0010] Furthermore, one end of the support arm is fixed to the second short vertical limb through a node plate and bolts.

[0011] Furthermore, the outer side of the vertical limb is fixed to one end of the connecting piece, and the other end of the connecting piece is fixed to the perforated aluminum plate.

[0012] Furthermore, a cable trough box and an optical cable trough box are respectively fixed to the top of different supporting arms, and a cable clamp is fixed in the cable trough box.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model is provided with multiple layers of supporting arms in the cable support, and different supporting arms can be connected with different cable fixings, so as to facilitate the supervision and maintenance of each cable.

[0015] 2. The utility model realizes the three-dimensional arrangement of high-voltage cables, intensively utilizes the public land resources of the park, and is conducive to unified supervision and maintenance.

[0016] 3. The utility model is in the shape of a gate, with an overall symmetrical layout, reasonable structural force, strong load-bearing, wind-resistant and earthquake-resistant performance, ensuring the safe operation of the cable.

[0017] 4. The top plate of the enclosure structure of the utility model adopts closed aluminum plate, and the two sides adopt perforated aluminum plates. The internal cables are effectively protected from direct sunlight and rain erosion. The perforated aluminum plates on both sides have strong wind resistance and heat dissipation performance, which improves the operating environment of the cables and makes the overall structure transparent and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the cable bracket;

[0020] Figure 3 It is a single-line diagram of the plan layout of steel beams.

[0021] The reference numerals in the figure are as follows:

[0022] 1. Steel column; 21. Steel longitudinal beam; 22. Steel cross beam; 3. Haunch plate; 4. Ground terminal plate; 5. Foundation; 6. Cable bracket; 611. First short vertical leg; 612. Second short vertical leg; 613. Fixed plate; 62. Support arm; 63. Node plate; 64. Top aluminum plate; 65. Connector; 66. Perforated aluminum plate; 7. Steel grating plate; 8. Cable clamp; 9. Cable trough box; 10. Optical cable trough box. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 Figure 3 As shown, the gate-shaped high-voltage cable bridge structure of this embodiment includes a steel column 1, a steel beam and a cable support 6. The bottom of the steel column 1 is fixed to the foundation 5, and the top side wall of the steel column 1 is fixed to the steel longitudinal beam 21 and the steel cross beam 22. A plurality of steel longitudinal beams 21 and a plurality of steel cross beams 22 are fixed vertically to each other; a cable support 6 is fixed to the top of the steel column 1 and the steel beam, and the cable support 6 includes a vertical limb and a support arm 62. The vertical limb includes two groups of first short vertical limbs 611 on the inner side of the cable support 6 and a second short vertical limb 612 on the outer side of the cable support 6. The support arm 62 is provided with multiple layers, one end of the support arm 62 is fixed to the second short vertical limb 612, the top of the inner end of the uppermost support arm 62 is fixed to the bottom of a first short vertical limb 611, and the bottom of the inner end of the lowermost support arm 62 is fixed to the top of another first short vertical limb 611.

[0025] The specifications of the steel column 1 are HW200mm×200mm×8mm×12mm, and the height is 5.0m; the specifications of the grounding terminal board 4 are: 8mm×60mm×100mm, and the grounding terminal board 4 is provided with two grounding holes with a diameter of 18mm, which is convenient for connecting the grounding flat steel. The bottom foundation 5 of the steel column 1 is a pile foundation with a diameter of 800mm. The specifications of the steel longitudinal beam 21 and the steel cross beam 22 are both HN350mm×175mm×7mm×11mm. The four steel longitudinal beams 21 are fixedly connected to the end steel cross beams 22 at the head and tail. The center length of the steel longitudinal beam 21 is 9.0m, and the horizontal spacing between the steel longitudinal beams 21 is 1.2m. Along the forward direction of the cable tray, a steel cross beam 22 is set every 3.0m to connect the steel longitudinal beams 21 into an integral structure. The specifications of the vertical limbs are 80mm×80mm×4mm, the height of the vertical limbs is 1.23m, and 8 bolt holes are reserved along the height direction. The hole diameters are all 14mm. The hole spacing from top to bottom is 50mm, 100mm, 200mm, 300mm, 200mm, 100mm, and 50mm respectively.

[0026] Furthermore, a haunch plate 3 is fixed between the top side wall of the steel column 1 and the steel beam.

[0027] The shape of the haunch plate 3 is an isosceles right triangle, and the specification is 8mm×250mm×250mm.

[0028] Furthermore, a grounding terminal plate 4 is fixed to the bottom of the steel column 1, and the grounding terminal plate 4 is provided with a grounding hole.

[0029] Furthermore, the bottom of the vertical limb is fixed to the fixed plate 613, the bottom of the bottom fixed plate 613 is fixed to the top of the steel grating plate 7, and the bottom of the steel grating plate 7 is fixed to the top of the steel beam; the top of the vertical limb is fixed to the bottom of another fixed plate 613, and the top of the top fixed plate 613 is fixed to the top aluminum plate 64.

[0030] The bottom of the vertical limb and the first short vertical limb 611 is fixedly connected with a fixing plate 613 and a stiffening rib. The bottom plate has a specification of 12mm×230mm×230mm, and 4 symmetrical fixing holes with a diameter of 14mm are reserved. The hole spacing is 160mm. The stiffening rib has a specification of 8mm×55mm×100mm and is centered along the four surfaces of the vertical limb and the first short vertical limb 611.

[0031] Furthermore, one end of the bracket arm 62 is fixed to the second short vertical limb 612 through a node plate 63 and bolts.

[0032] The specifications of the node plate 63 are 8 mm×100 mm×270 mm, and a pair of bolt holes 91 with a diameter of 14 mm and a hole spacing of 200 mm are reserved on the plate.

[0033] Furthermore, the outer side of the vertical limb is fixed to one end of the connecting member 65 , and the other end of the connecting member 65 is fixed to the perforated aluminum plate 66 .

[0034] Furthermore, a cable trough box 9 and an optical cable trough box 10 are respectively fixed to the tops of different supporting arms 62 , and a cable clamp 8 is fixed inside the cable trough box 9 .

[0035] The specifications of the two-layer bracket 62 are both 80mm×80mm×4mm, and two spacing holes are provided in the middle, with a diameter of 14mm×68mm, penetrating the upper and lower surfaces, for fixing the cable clamp 8. The outer side of the high-voltage cable and the optical cable is provided with an optical cable trough box 10, and the cable trough box 9 is encapsulated. The specifications of the first short vertical limb 611 and the second short vertical limb 612 are both 80mm×80mm×4mm, the height of the first short vertical limb 611 is 0.36m, and the height of the second short vertical limb 612 is 0.29m. Two bolt holes are reserved along the height direction, with a diameter of 14mm and a hole spacing of 50mm. The first short vertical limb 611 and the second short vertical limb 612 are on the same axis.

[0036] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gate-shaped high-voltage cable bridge structure, characterized in that: The invention comprises a steel column (1), a steel beam and a cable bracket (6), wherein the bottom of the steel column (1) is fixed to a foundation (5), the top side wall of the steel column (1) is fixed to a steel longitudinal beam (21) and a steel transverse beam (22), and a plurality of steel longitudinal beams (21) and a plurality of steel transverse beams (22) are fixed to each other vertically; a cable bracket (6) is fixed to the top of the steel column (1) and the steel beam, and the cable bracket (6) comprises a vertical limb and a bracket arm (62). The vertical limbs include two groups of first short vertical limbs (611) on the inner side of the cable bracket (6) and second short vertical limbs (612) on the outer side of the cable bracket (6); the support arm (62) is provided with multiple layers; one end of the support arm (62) is fixed to the second short vertical limb (612); the top of the inner end of the uppermost support arm (62) is fixed to the bottom of a first short vertical limb (611); and the bottom of the inner end of the lowermost support arm (62) is fixed to the top of another first short vertical limb (611).

2. The gate-shaped high-voltage cable bridge structure according to claim 1 is characterized in that: A haunch plate (3) is fixed between the top side wall of the steel column (1) and the steel beam.

3. The gate-shaped high-voltage cable bridge structure according to claim 1 is characterized in that: A grounding terminal plate (4) is fixed to the bottom of the steel column (1), and a grounding hole is provided in the grounding terminal plate (4).

4. The gate-shaped high-voltage cable bridge structure according to claim 1 is characterized in that: The bottom of the vertical limb is fixed to the fixed plate (613), the bottom of the bottom fixed plate (613) is fixed to the top of the steel grating plate (7), and the bottom of the steel grating plate (7) is fixed to the top of the steel beam; the top of the vertical limb is fixed to the bottom of another fixed plate (613), and the top of the top fixed plate (613) is fixed to the top aluminum plate (64).

5. The gate-shaped high-voltage cable bridge structure according to claim 1, characterized in that: One end of the support arm (62) is fixed to the second short vertical limb (612) via a node plate (63) and bolts.

6. The gate-shaped high-voltage cable bridge structure according to claim 1, characterized in that: The outer side of the vertical limb is fixed to one end of a connecting piece (65), and the other end of the connecting piece (65) is fixed to a perforated aluminum plate (66).

7. The gate-shaped high-voltage cable bridge structure according to claim 1, characterized in that: A cable trough box (9) and an optical cable trough box (10) are respectively fixed to the top of the different supporting arms (62), and a cable clamp (8) is fixed inside the cable trough box (9).

Images