High-insulativity enhanced transformer substation optical cable leading-down device

Abstract

The utility model discloses a high-insulativity enhanced transformer substation optical cable leading-down device, which comprises a plurality of leading-down clamps, a connector box and a residual cable rack component, the leading-down clamp comprises a first mounting bracket, a first composite insulator and two corrugated iron sheets which are fixedly connected in sequence; the connector box comprises a cap type connector box, two second cross-shaped supporting platforms, four second pillar type insulators arranged in a square shape and a plurality of second mounting brackets; the second pillar type insulator is fixed between the two second cross-shaped supporting platforms. A second mounting bracket and a cap type connector box are respectively fixed on the outer sides of the two second cross-shaped supporting platforms; the residual cable rack component comprises a residual cable rack, four third pillar type insulators which are arranged in a square manner, a third cross-shaped supporting platform and a plurality of third mounting brackets; and the first mounting bracket, the second mounting bracket and the third mounting bracket fix the leading-down clamp, the connector box and the residual cable rack component on a tower. The stability of the transformer substation optical cable leading-down device is improved by optimizing the connection mode through the pillar-type insulator.

Description

Technical Field

[0001] This utility model relates to the field of power transmission systems, and in particular to a high-insulation enhanced substation optical cable downleading device. Background Technology

[0002] Traditional substation fiber optic cable drop-off devices have structural design deficiencies, making the excess cable susceptible to external environmental influences (such as wind and vibration), which can lead to loosening or damage.

[0003] Traditional substation fiber optic cable drop-off devices use rubber pads for insulation of the cable trays, junction boxes, and clamps, resulting in low insulation performance and susceptibility to communication interruptions or equipment failures due to leakage or other external factors.

[0004] Therefore, there is a need for a high-insulation substation optical cable downleading device that avoids the use of rubber pads and is suitable for optical fiber composite overhead ground wire (OPGW), thereby improving the insulation and stability of the high-insulation substation optical cable downleading device. Utility Model Content

[0005] The purpose of this invention is to provide a high-insulation substation optical cable drop-off device suitable for optical fiber composite overhead ground wire (OPGW) that avoids the use of rubber pads.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-insulation enhanced substation optical cable drop-off device includes several drop-off clamps, junction boxes, and excess cable rack components;

[0008] The down-lead clamp includes a first mounting bracket, a first composite insulator, and a pair of corrugated iron plates that clamp the OPGW optical cable, connected in sequence.

[0009] The junction box includes a cap-type junction box, two oppositely arranged cross-shaped second cross support platforms, four second post-type insulators arranged in a square, and multiple second mounting brackets.

[0010] The two ends of the length of the four second post insulators are respectively fixed to the inner side of the four ends of each second cross support platform; multiple second mounting brackets are fixed to the outer side of one of the second cross support platforms, and a cap-type junction box is fixed to the outer side of the other second cross support platform.

[0011] The cable support component includes a cable support frame, four third post-type insulators arranged in a square, a third cross support platform in a cross shape, and multiple third mounting brackets.

[0012] The cable support frame is fixedly connected to one end of four post-type insulators, and the other end of the four post-type insulators is fixed to the inner side of the four ends of the third cross support platform. Multiple third mounting brackets are fixed to the outer side of the third cross support platform.

[0013] The first mounting bracket, the second mounting bracket, and the third mounting bracket respectively fix the down clamp, the junction box, and the excess cable rack components to the frame.

[0014] Furthermore, the frame is a lattice frame, the number of the second mounting brackets is four and fixed on the outside of the four ends of the second cross support platform, and the number of the third mounting brackets is four and fixed on the outside of the four ends of the third cross support platform.

[0015] The first mounting bracket, the second mounting bracket, and the third mounting bracket are respectively fastened to the angle steel of the lattice frame with bolts and nuts.

[0016] Furthermore, the frame is a steel pipe pole type frame, and the first mounting bracket, the second mounting bracket, and the third mounting bracket are clamping structures for tightening the steel pipe pole type frame.

[0017] Furthermore, there are two second mounting brackets, which are respectively connected to the two ends of the second cross support platform arranged vertically; there are two third mounting brackets, which are respectively connected to the two ends of the third cross support platform arranged vertically.

[0018] Furthermore, the outer shell of the cap-type connector box is made of aluminum alloy.

[0019] Furthermore, the cable support frame, the second cross support platform, the third cross support platform, the first mounting bracket, the second mounting bracket, the third mounting bracket, and the corrugated iron sheet are all made of galvanized steel.

[0020] In the above technical solution, the high-insulation enhanced substation optical cable downleading device of this utility model has the following beneficial effects:

[0021] By replacing the traditional rubber pad insulation with post insulator insulation, the insulation and stability of the substation fiber optic cable downleading device are improved, while maintenance costs are reduced. The post insulators are made of high-strength materials, with selected insulators boasting a rated tensile strength of 5kN, exhibiting strong resistance to mechanical shock and vibration, and are less prone to loosening or displacement in complex environments. Their special umbrella-skirt structure effectively blocks external factors such as rainwater and dust, preventing insulation performance degradation due to environmental erosion. This dual protection—from mechanical performance to environmental safeguards—ensures that the post insulators meet the operational requirements of the substation fiber optic cable downleading device, achieving long-term stable operation. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 A schematic diagram of the structure of the high-insulation enhanced substation optical cable downleading device provided by this utility model;

[0024] Figure 2 A three-dimensional structural schematic diagram of a cable tray component according to an embodiment of the present invention;

[0025] Figure 3 A front view of a cable tray component according to an embodiment of the present invention;

[0026] Figure 4 A top view of the cable tray component according to another embodiment of the present invention;

[0027] Figure 5 A schematic diagram of the connector box provided by this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the guide clamp provided by this utility model.

[0029] In the picture:

[0030] 1. Down-lead clamp, 2. Junction box, 3. Excess cable rack component, 11. First mounting bracket, 12. First composite insulator, 13. Corrugated iron sheet, 21. Cap-type junction box, 22. Second cross support platform, 23. Second post insulator, 24. Second mounting bracket, 31. Third post insulator, 32. Third cross support platform, 33. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0032] It should be noted that the terms "above," "one end," "up," etc. used in this document indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Similar expressions are only for illustrative purposes and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "part," "two parts," etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] like Figure 1-6 The illustrated high-insulation enhanced substation optical cable downleading device includes several downleading clamps 1, splice boxes 2, and surplus cable rack components 3. The splice boxes 2 are mainly used for fiber optic splicing of OPGW optical cables and ADSS communication lines within the substation, and also provide protection. The surplus cable rack components 3 are mainly used to suspend and fix excess OPGW optical cables or ADSS communication lines on the frame in overhead lines for maintenance and inspection. The multiple downleading clamps 1 are mainly used together for the fixed installation of OPGW optical cables when leading them onto poles or towers.

[0034] The lead-out clamp 1 includes a first mounting bracket 11, a first composite insulator 12, and a pair of corrugated iron plates 13 for clamping the OPGW optical cable, connected in sequence. The two corrugated iron plates 13 are fitted over the screws at the ends of the first composite insulator 12. The distance between the two corrugated iron plates 13 is adjustable. The opposite sides of the two corrugated iron plates 13 are symmetrically provided with arc-shaped curved surfaces to clamp the OPGW optical cable. Nuts are provided on the outer sides of the two corrugated iron plates 13 at opposite distances, and the two corrugated iron plates 13 are clamped between the two nuts.

[0035] Junction box 2 includes a cap-type junction box 21, two oppositely arranged cross-shaped second cross support platforms 22, four second post-type insulators 23 arranged in a square, and multiple second mounting brackets 24.

[0036] The two ends of the length of the four second post insulators 23 are respectively fixed to the inner side of the four ends of each second cross support platform 22; multiple second mounting brackets 24 are fixed to the outer side of one of the second cross support platforms 22, and a cap-type junction box 21 is fixed to the outer side of the other second cross support platform 22.

[0037] Specifically, optionally, the second cross support platform 22 is a split structure consisting of four identical flat plates, two vertically placed and one horizontally connected, serving as the mounting base for the cap-type junction box 21, the second post-type insulator 23, and multiple second mounting brackets 24. The four second post-type insulators 23 are positioned between the two second cross support platforms 22, i.e., on the inner side, with each second post-type insulator 23 having its two ends fixed to the four ends of the two second cross support platforms 22 by fasteners. Multiple second mounting brackets 24 are fixed to the outer side of one second cross support platform 22, and the cap-type junction box 21 is fixed to the outer side of the other second cross support platform 22.

[0038] The cable support component 3 includes a cable support, four third post insulators 31 arranged in a square, a third cross support platform 32 in a cross shape, and multiple third mounting brackets 33.

[0039] The cable support frame is fixedly connected to one end of four third post insulators, and the other ends of the four third post insulators are fixed to the inner side of the four ends of the third cross support platform 32. Multiple third mounting brackets 33 are fixed to the outer side of the third cross support platform 32.

[0040] The first mounting bracket 11, the second mounting bracket 24, and the third mounting bracket 33 respectively fix the down clamp 1, the junction box 2, and the excess cable rack component 3 to the frame. The number of the second mounting bracket 24 and the third mounting bracket 33 is determined as needed, but there must be at least one.

[0041] Preferably, the frame is a lattice frame, with four second mounting brackets 24 fixed to the outer sides of the four ends of the second cross support platform 22, and four third mounting brackets 33 fixed to the outer sides of the four ends of the third cross support platform 32. More preferably, the positions of the second mounting brackets 24 correspond to the positions of the second post-type insulators, and the positions of the third mounting brackets 33 correspond to the positions of the third post-type insulators. Both ends of the second post-type insulator are fixed with screws. One end of the screw connects the second mounting bracket 24 and the second cross support platform 22 together. Nuts that engage with the screws are respectively provided on both sides of the second mounting bracket 24 and the second cross support platform 22, and the two nuts clamp the second mounting bracket 24 and the second cross support platform 22; the other end of the screw is fastened to another second cross support platform 22. Figure 2-3 As shown, the third post insulator is fixed with screws at both ends. The screw at one end passes through the third mounting bracket and the third cross support platform together, and the third mounting bracket and the third cross support platform are fixed by fasteners; the screw at the other end is fastened to the cable rack.

[0042] The first mounting bracket 11, the second mounting bracket 24, and the third mounting bracket 33 are fastened to the angle steel of the lattice frame with bolts and nuts, respectively. Preferably, the first mounting bracket 11, the second mounting bracket 24, and the third mounting bracket 33 are S-shaped fixing clips.

[0043] Preferably, the frame is a steel pipe pole type frame, and the first mounting bracket 11, the second mounting bracket 24, and the third mounting bracket 33 are clamping structures for tightening the steel pipe pole type frame.

[0044] Preferably, there are two second mounting brackets 24, which are respectively connected to the two ends of the second cross support platform 22 arranged vertically; for example... Figure 4As shown, there are two third mounting brackets 33, which are respectively connected to the upper and lower ends of the third cross support platform 32. The corresponding ends of the second cross support platform 22 and the second mounting bracket 24 are connected by the same screw fixed to one end of the length of the second post insulator. The corresponding ends of the third cross support platform 32 and the third mounting bracket 33 are connected by the same screw fixed to one end of the length of the third post insulator, which saves installation space.

[0045] Preferably, the outer shell of the cap-type junction box 21 is made of aluminum alloy.

[0046] Preferably, the cable support frame, the second cross support platform 22, the third cross support platform 32, the first mounting bracket 11, the second mounting bracket 24, the third mounting bracket 33, and the corrugated iron sheet 13 are all made of galvanized steel. All ferrous metal parts of the downlead device are hot-dip galvanized.

[0047] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-insulation enhanced substation optical cable drop-off device, characterized in that, It includes several down-lead clamps (1), junction boxes (2) and cable tray components (3); The down-lead clamp (1) includes a first mounting bracket (11), a first composite insulator (12), and a pair of corrugated iron sheets (13) that clamp the OPGW optical cable in sequence; The junction box (2) includes a cap-type junction box (21), two oppositely arranged second cross support platforms (22) in a cross shape, four second post-type insulators (23) arranged in a square, and multiple second mounting brackets (24); The two ends of the length of the four second post insulators (23) are respectively fixed to the inner side of the four ends of each second cross support platform (22); multiple second mounting brackets (24) are fixed to the outer side of one of the second cross support platforms (22), and a cap-type junction box (21) is fixed to the outer side of the other second cross support platform (22); The cable support component (3) includes a cable support, four third post insulators (31) arranged in a square, a third cross support platform (32) in a cross shape, and multiple third mounting brackets (33); The cable support frame is fixedly connected to one end of four third post insulators, and the other end of the four third post insulators is fixed to the inner side of the four ends of the third cross support platform (32). Multiple third mounting brackets (33) are fixed to the outer side of the third cross support platform (32). The first mounting bracket (11), the second mounting bracket (24), and the third mounting bracket (33) respectively fix the down clamp (1), the junction box (2), and the excess cable rack component (3) to the frame.

2. The high-insulation enhanced substation optical cable drop-off device according to claim 1, characterized in that, The frame is a lattice frame. There are four second mounting brackets (24) and they are fixed on the outside of the four ends of the second cross support platform (22). There are four third mounting brackets (33) and they are fixed on the outside of the four ends of the third cross support platform (32). The first mounting bracket (11), the second mounting bracket (24), and the third mounting bracket (33) are respectively fastened to the angle steel of the lattice frame with bolts and nuts.

3. The high-insulation enhanced substation optical cable drop-off device according to claim 1, characterized in that, The frame is a steel pipe pole type frame, and the first mounting bracket (11), the second mounting bracket (24), and the third mounting bracket (33) are respectively clamping structures for tightening the steel pipe pole type frame.

4. The high-insulation enhanced substation optical cable drop-off device according to claim 3, characterized in that, The number of the second mounting brackets (24) is two and they are respectively connected to the two ends of the second cross support platform (22) arranged above and below; the number of the third mounting brackets (33) is two and they are respectively connected to the two ends of the third cross support platform (32) arranged above and below.

5. A high-insulation enhanced substation optical cable drop-off device according to claim 1, characterized in that, The outer shell of the cap-type junction box (21) is made of aluminum alloy.

6. The high-insulation enhanced substation optical cable drop-off device according to claim 1, characterized in that, The cable support frame, the second cross support platform (22), the third cross support platform (32), the first mounting bracket (11), the second mounting bracket (24), the third mounting bracket (33), and the corrugated iron sheet (13) are all made of galvanized steel.

Images