Sheath structure of high-voltage cable connection point

Abstract

The utility model relates to the technical field of electric power overhaul auxiliary tools, and provides a sheath structure of a high-voltage cable connection point, which comprises two first clamping plates and a plurality of second clamping plates, a plurality of first notches are formed in the outer surfaces of the two first clamping plates, the first notches are equally divided into four groups, and the second clamping plates are connected with the first clamping plates. First positioning columns are movably embedded in the inner surfaces of the four sets of first notches, the multiple first positioning columns are averagely divided into two sets, first positioning plates are fixedly connected to the tops of the two sets of first positioning columns, second notches are formed in the outer surfaces of the multiple first positioning columns, and second positioning columns are movably embedded in the inner surfaces of the second notches. The plurality of second positioning columns are equally divided into two groups, so that repeated wrapping with an insulating tape is avoided, the working intensity of maintainers is reduced, the maintenance efficiency is improved, meanwhile, the situation that connection points of cables are loosened due to the fact that the connection points of the cables are subjected to strong mechanical stress is avoided, and a guarantee is provided for stable operation of wires.

Description

Technical Field

[0001] The utility model relates to the technical field of power maintenance auxiliary tools, in particular to a sheath structure of a high-voltage cable connection point. Background Art

[0002] Sheath structures play a vital role in high voltage cable connection points, not only providing protection and insulation, but also enhancing the safety and reliability of the cable system.

[0003] Although current technology has many advantages, its disadvantage is that when connecting two high-voltage cables, it is necessary to use crimping pliers to squeeze the internal cable core to make the two cable cores fit completely together, and then wrap them with multiple layers of insulating tape, etc., which increases the workload of maintenance personnel and reduces maintenance efficiency. At the same time, because most cables are arranged outdoors, they will be affected by strong winds and animals, causing the cable connection points to be subject to strong mechanical stress, causing the cable connection points to become loose, affecting their use. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that when two high-voltage cables are connected, a crimping pliers needs to be used to squeeze the internal cable core so that the two cable cores are completely fitted together, and then they are wrapped with multiple layers of insulating tape, etc., thereby increasing the work intensity of maintenance personnel and reducing maintenance efficiency. At the same time, because most cables are arranged outdoors, they will be affected by strong winds and animals, so that the connection points of the cables are subjected to strong mechanical stress, causing the connection points of the cables to become loose, affecting their use.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sheath structure of a high-voltage cable connection point, comprising: two clamping plates 1, and also comprising: multiple clamping plates 2, the outer surfaces of the two clamping plates 1 are each provided with multiple slots 1, the multiple slots 1 are evenly divided into four groups, the inner surfaces of the four groups of slots 1 are each movably embedded with positioning columns 1, the multiple positioning columns 1 are evenly divided into two groups, the tops of the two groups of positioning columns 1 are each fixedly connected with a positioning plate 1, the outer surfaces of the multiple positioning columns 1 are each provided with slots 2, the inner surfaces of the multiple slots 2 are each movably embedded with positioning columns 2, the multiple positioning columns 2 are evenly divided into two groups, the bottoms of the two groups of positioning columns 2 are each fixedly connected with a positioning plate 2, the inner surfaces of the two clamping plates 1 are movably embedded with protective covers, the inner surfaces of the protective covers are provided with multiple wires, which avoids repeated wrapping with insulating tape and reduces the work intensity of maintenance personnel.

[0006] As a preferred embodiment, the plurality of the splints 2 are evenly divided into two groups, the two groups of the splints 2 are movably sleeved on the outer surface of the protective cover, the outer surfaces of the plurality of the splints 2 are each provided with two limit grooves, wherein the outer surfaces of two of the splints 2 are fixedly connected with springs, and the two springs are fixedly connected to the outer surface of one of the splints 1, thereby preventing the connection point of the cable from being subjected to strong mechanical stress, causing the connection point of the cable to loosen.

[0007] As a preferred embodiment, the outer surfaces of the two splints 1, the multiple positioning columns 1 and the multiple positioning columns 2 are all provided with positioning grooves, and the inner surfaces of the multiple positioning grooves are all movably embedded with bolts 1, and the cooperation between the bolts 1 and the positioning grooves can combine the two splints 1, the multiple positioning columns 1 and the multiple positioning columns 2 into a whole and fix them on the outside of the protective cover.

[0008] As a preferred embodiment, an insulating layer is provided on the inner surface of the protective cover. The insulating layer is made of polyethylene. Polyethylene has good electrical and insulating properties and can provide insulation for the wires.

[0009] As a preferred embodiment, the plurality of limit grooves are evenly divided into four groups, the inner surfaces of the four groups of limit grooves are movably embedded with bolts 2, and the outer surfaces of the plurality of bolts 2 are threadedly connected with nuts, and the cooperation between the bolts 2 and the nuts can make the splint 2 fit tightly with the protective cover.

[0010] As a preferred implementation, a shielding layer is provided on the outer surface of the insulating layer. The shielding layer is made of aluminum foil, which can effectively shield external electromagnetic interference.

[0011] As a preferred embodiment, a flame retardant layer is provided on the outer surface of the shielding layer. The material of the flame retardant layer is flame retardant polyvinyl chloride. Flame retardant polyvinyl chloride is a plastic material with good flame retardant properties and can effectively suppress the spread of flames in the event of a fire.

[0012] As a preferred embodiment, a corrosion-resistant layer is provided on the outer surface of the flame-retardant layer. The material of the corrosion-resistant layer is chloroprene rubber. The material of the corrosion-resistant layer is chloroprene rubber. Neoprene is a rubber material with excellent corrosion resistance and has good oil resistance, acid and alkali resistance and oxidation resistance.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. When the utility model is in use, the protective covers are respectively put on the outside of the two electric wires, and then the protective covers are squeezed with a crimping pliers to make the two electric wires inside the protective covers closely contact, and then one of the clamps 1 and two of the clamps 2 are placed on the outside of the protective cover, and then the multiple notches 1 on the other clamps 1 are overlapped with the notches 1 on one of the clamps 1, and then the multiple positioning posts are inserted into the multiple notches 1 to make the two positioning plates 1 fit with one of the clamps 1, and then the multiple positioning posts 2 are inserted into the multiple notches 2 to make the two positioning plates 2 fit with the other clamps 1, and finally the positioning grooves on the two clamps 1, the multiple positioning posts 1 and the multiple positioning posts 2 are overlapped, and then the multiple bolts 1 are respectively inserted into the multiple positioning grooves, and the two clamps 1 and the protective cover are fixed to the outside of the electric wires by using the mortise and tenon structure, which avoids the use of insulating tape to wrap repeatedly, reduces the work intensity of maintenance personnel, and improves maintenance efficiency.

[0015] 2. In the utility model, two of the two clamping plates are positioned outside the protective cover as one of the two clamping plates is fixed, and then the limiting grooves on the other two clamping plates are overlapped with the limiting grooves on two of the two clamping plates, and the two groups of clamping plates are tightly attached to the outside of the protective cover by using the cooperation of multiple bolts 2 and nuts. When the protective cover is subjected to strong mechanical stress, the two groups of clamping plates will be displaced due to the stretching of the mechanical stress, and when the mechanical stress is reduced, the two springs will release the elastic potential energy, causing the two groups of clamping plates to be displaced in the opposite direction and return to the starting positions of the two clamping plates. The two springs play a buffering role, avoiding the connection points of the cables from being subjected to strong mechanical stress, which causes the connection points of the cables to become loose, thereby providing a guarantee for the stable operation of the wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the main structure of a sheath structure of a high-voltage cable connection point provided by the utility model;

[0017] Figure 2 A schematic diagram of the exploded structure of a sheath structure of a high-voltage cable connection point provided by the utility model;

[0018] Figure 3 A schematic diagram of the position structure of the limit groove of the sheath structure of a high-voltage cable connection point provided by the utility model;

[0019] Figure 4 The utility model provides a schematic cross-sectional structure diagram of a sheath structure of a high-voltage cable connection point.

[0020] Legend:

[0021] 1. Clamp one; 2. Notch one; 3. Positioning column one; 4. Positioning plate one; 5. Notch two; 6. Positioning column two; 7. Positioning plate two; 8. Positioning slot; 9. Bolt one; 10. Protective cover; 11. Wire; 12. Clamp two; 13. Limiting slot; 14. Bolt two; 15. Nut; 16. Spring; 17. Insulating layer; 18. Shielding layer; 19. Flame retardant layer; 20. Corrosion-resistant layer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a sheath structure of a high-voltage cable connection point, comprising: two clamping plates 1, and also comprising: a plurality of clamping plates 2 12, the outer surfaces of the two clamping plates 1 are each provided with a plurality of slots 2, the plurality of slots 2 are evenly divided into four groups, the inner surfaces of the four groups of slots 2 are each movably embedded with positioning posts 3, the plurality of positioning posts 3 are evenly divided into two groups, the tops of the two groups of positioning posts 3 are each fixedly connected with a positioning plate 4, the outer surfaces of the plurality of positioning posts 3 are each provided with slots 5, the inner surfaces of the plurality of slots 5 are each movably embedded with positioning posts 6, the plurality of positioning posts 6 are evenly divided into two groups, the bottoms of the two groups of positioning posts 6 are each fixedly connected with a positioning plate 7, the inner surfaces of the two clamping plates 1 are movably embedded with a protective cover 10, the inner surface of the protective cover 10 is provided with a plurality of wires 11, which avoids repeated wrapping with insulating tape, reduces the work intensity of maintenance personnel, and improves maintenance efficiency.

[0024] like Figure 1-4 As shown, multiple clamping plates 12 are evenly divided into two groups, and the two groups of clamping plates 12 are movably sleeved on the outer surface of the protective cover 10. The outer surfaces of multiple clamping plates 12 are each provided with two limiting grooves 13, wherein the outer surfaces of two clamping plates 12 are fixedly connected with springs 16, and the two springs 16 are fixedly connected to the outer surface of one of the clamping plates 1, thereby preventing the connection point of the cable from being subjected to strong mechanical stress, causing the connection point of the cable to become loose, and providing guarantee for the stable operation of the wire 11.

[0025] like Figure 1-4As shown, the outer surfaces of the two clamping plates 1, the multiple positioning columns 3 and the multiple positioning columns 2 6 are all provided with positioning grooves 8, and the inner surfaces of the multiple positioning grooves 8 are all movably embedded with bolts 9. The cooperation of the bolts 9 and the positioning grooves 8 can make the two clamping plates 1, the multiple positioning columns 3 and the multiple positioning columns 2 6 be combined into a whole and fixed to the outside of the protective cover 10, providing good rigidity for the protective cover 10.

[0026] like Figure 1-4 As shown, an insulating layer 17 is disposed on the inner surface of the protective cover 10 . The insulating layer 17 is made of polyethylene. Polyethylene has good electrical and insulating properties and can provide good insulation for the wires 11 .

[0027] like Figure 1-4 As shown, multiple limit grooves 13 are evenly divided into four groups, and the inner surfaces of the four groups of limit grooves 13 are movably embedded with bolts 14, and the outer surfaces of multiple bolts 14 are threadedly connected with nuts 15. The cooperation of bolts 14 and nuts 15 can make the splint 12 fit tightly with the protective cover 10, creating conditions for the buffering effect of the spring 16.

[0028] like Figure 1-4 As shown, a shielding layer 18 is provided on the outer surface of the insulating layer 17. The shielding layer 18 is made of aluminum foil, which can effectively shield external electromagnetic interference and improve the anti-interference ability of the cable.

[0029] like Figure 1-4 As shown, the outer surface of the shielding layer 18 is provided with a flame retardant layer 19, and the material of the flame retardant layer 19 is flame retardant polyvinyl chloride, which is a plastic material with good flame retardant properties. In the event of a fire, it can effectively suppress the spread of flames and reduce the release of toxic gases.

[0030] like Figure 1-4 As shown, the outer surface of the flame retardant layer 19 is provided with a corrosion-resistant layer 20. The material of the corrosion-resistant layer 20 is chloroprene rubber. The material of the corrosion-resistant layer 20 is chloroprene rubber. Neoprene is a rubber material with excellent corrosion resistance, good oil resistance, acid and alkali resistance and oxidation resistance, and can effectively protect the cable from erosion by chemical media.

[0031] Working principle: This device is a sheath structure of a high-voltage cable connection point. When in use, the protective cover 10 is respectively put on the outside of the two wires 11, and then the protective cover 10 is squeezed with a crimping pliers to make the two wires 11 inside the protective cover 10 closely contact, and then one of the clamps 1 and two of the clamps 2 12 are placed on the outside of the protective cover 10, and then the multiple notches 2 on the other clamp 1 coincide with the notches 2 on one of the clamps 1, and then the multiple positioning posts 3 are inserted into the multiple notches 2, so that the two positioning plates 4 fit with one of the clamps 1, and then the multiple positioning posts 2 6 are inserted into the multiple notches 2 5, so that the two The positioning plate 2 7 is fitted with another of the clamping plates 1, and finally the positioning grooves 8 on the two clamping plates 1, the multiple positioning columns 3 and the multiple positioning columns 2 6 overlap, and then the multiple bolts 9 are respectively inserted into the multiple positioning grooves 8, and the two clamping plates 1 and the protective cover 10 are fixed to the outside of the wire 11 by using the mortise and tenon structure. The material of the insulating layer 17 in the protective cover 10 is polyethylene, which has good electrical and insulating properties and can have a good insulating effect on the wire 11. The material of the shielding layer 18 is aluminum foil, which can effectively shield external electromagnetic interference and improve the anti-interference ability of the cable. The material of the flame retardant layer 19 is flame retardant polyvinyl chloride, which is flame retardant polyvinyl chloride. Neoprene is a plastic material with good flame retardant properties. In the event of a fire, it can effectively suppress the spread of flames and reduce the release of toxic gases. The material of the corrosion-resistant layer 20 is chloroprene rubber. Neoprene is a rubber material with excellent corrosion resistance. It has good oil resistance, acid and alkali resistance and oxidation resistance. It can effectively protect the cable from erosion by chemical media, avoid repeated wrapping with insulating tape, reduce the work intensity of maintenance personnel, and improve maintenance efficiency. Because two of the clamping plates 12 are positioned outside the protective cover 10 as one of the clamping plates 1 is fixed, and then the limit grooves 13 on the other two clamping plates 12 are fixed. Overlapping with the limiting grooves 13 on two of the clamping plates 2 12, the two sets of clamping plates 2 12 are tightly attached to the outside of the protective cover 10 by means of the cooperation of multiple bolts 2 14 and nuts 15. When subjected to strong mechanical stress, the protective cover 10 will be stretched by the mechanical stress, causing the two sets of clamping plates 2 12 to be displaced. When the mechanical stress is reduced, the two springs 16 will release the elastic potential energy, causing the two sets of clamping plates 2 12 to be displaced in the opposite direction and return to the starting positions of the two clamping plates 2 12. The two springs 16 act as a buffer, preventing the connection point of the cable from being subjected to strong mechanical stress, causing the connection point of the cable to become loose, thereby providing a guarantee for the stable operation of the wire 11.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A sheath structure for a high voltage cable connection point, characterized in that: include: The two clamping plates (1) further include: a plurality of clamping plates (12); the outer surfaces of the two clamping plates (1) are each provided with a plurality of slots (2); the plurality of slots (2) are evenly divided into four groups; the inner surfaces of the four groups of slots (2) are each movably embedded with positioning posts (3); the plurality of positioning posts (3) are evenly divided into two groups; the tops of the two groups of positioning posts (3) are each fixedly connected with positioning plates (4); the outer surfaces of the plurality of positioning posts (3) are each provided with slots (5); the inner surfaces of the plurality of slots (5) are each movably embedded with positioning posts (6); the plurality of positioning posts (6) are evenly divided into two groups; the bottoms of the two groups of positioning posts (6) are each fixedly connected with positioning plates (7); the inner surfaces of the two clamping plates (1) are movably embedded with protective covers (10); the inner surfaces of the protective covers (10) are provided with a plurality of electrical wires (11).

2. A sheath structure for a high voltage cable connection point according to claim 1, characterized in that: The plurality of the second splints (12) are evenly divided into two groups, and the two groups of the second splints (12) are movably sleeved on the outer surface of the protective cover (10), and the outer surfaces of the plurality of the second splints (12) are each provided with two limiting grooves (13), wherein the outer surfaces of two of the second splints (12) are fixedly connected with springs (16), and the two springs (16) are fixedly connected to the outer surface of one of the first splints (1).

3. A sheath structure for a high voltage cable connection point according to claim 1, characterized in that: The outer surfaces of the two clamping plates (1), the plurality of positioning columns (3) and the plurality of positioning columns (6) are all provided with positioning grooves (8), and the inner surfaces of the plurality of positioning grooves (8) are all movably embedded with bolts (9).

4. The sheath structure of a high-voltage cable connection point according to claim 1, characterized in that: An insulating layer (17) is provided on the inner surface of the protective sleeve (10), and the insulating layer (17) is made of polyethylene.

5. The sheath structure of a high-voltage cable connection point according to claim 2, characterized in that: The plurality of limit grooves (13) are evenly divided into four groups, the inner surfaces of the four groups of limit grooves (13) are all movably embedded with bolts 2 (14), and the outer surfaces of the plurality of bolts 2 (14) are all threadedly connected with nuts (15).

6. A sheath structure for a high voltage cable connection point according to claim 4, characterized in that: A shielding layer (18) is provided on the outer surface of the insulating layer (17), and the shielding layer (18) is made of aluminum foil.

7. A sheath structure for a high voltage cable connection point according to claim 6, characterized in that: The outer surface of the shielding layer (18) is provided with a flame retardant layer (19), and the material of the flame retardant layer (19) is flame retardant polyvinyl chloride.

8. A sheath structure for a high voltage cable connection point according to claim 7, characterized in that: The outer surface of the flame retardant layer (19) is provided with a corrosion resistant layer (20), and the material of the corrosion resistant layer (20) is chloroprene rubber.

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