Gradient sectional type composite high-voltage insulator kit

Abstract

The utility model relates to the technical field of power transmission line insulation structures, in particular to a gradient sectional type composite high-voltage insulator kit which comprises a composite high-voltage insulator main body, the composite high-voltage insulator main body is composed of a metal rod, a tower side composite insulator and a wire side composite insulator, and a fixed base is fixedly installed at the bottom end of the metal rod. A wire fixing piece is arranged at the top end of the metal rod and comprises a bottom plate fixedly installed at the top end of the metal rod, a supporting seat is fixedly installed on the upper surface of the bottom plate, a left wire clamping groove and a right wire clamping groove are formed in the supporting seat, and a center boss is arranged at the center position between the two wire clamping grooves. A stud is fixedly installed at the center position of the top face of the center boss, the stud is sleeved with a lower pressing plate, a left arc-shaped covering plate and a right arc-shaped covering plate are fixedly installed on the top face of the lower pressing plate, and a nut is in threaded connection with the stud. The cable fixing device facilitates cable fixing operation and is convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field of power transmission line insulation structure, and more specifically, to a gradient segmented composite high-voltage insulator kit. Background Technology

[0002] In the development of the power industry, insulators, as key insulation components in transmission lines and power station equipment, play a vital role. Especially in the development of high-voltage and ultra-high-voltage transmission technology, the performance of insulators is directly related to the safe and stable operation of the transmission system. In recent years, with the continuous improvement of domestic and foreign requirements for transmission technology, the research and development of insulators has also made great progress.

[0003] Traditional insulators, such as porcelain insulators, are made of materials with good weather resistance, arc resistance, and high strength, such as alumina ceramics. They can be designed into different types, such as standard type, pollution-resistant type, and aerodynamic type, according to the requirements of pollution prevention, to meet different needs in engineering. However, with the increase of transmission voltage level, traditional insulators are no longer able to meet the requirements of uniform electric field distribution and insulation performance under certain specific conditions.

[0004] To improve the performance of insulators, especially in high-voltage and ultra-high-voltage environments, researchers have begun to explore new insulator structures and materials. The main feature of the gradient segmented composite high-voltage insulator kit is that it is made of materials with different relative permittivity in segments, which makes the electric field distribution of the entire insulator more uniform. Specifically, the kit usually includes a tower-side composite insulator and a conductor-side composite insulator, which are connected together by metal connectors. The outer sides of both the tower-side and conductor-side composite insulators are coated with a composite insulating material layer, and their relative permittivity is different.

[0005] When using gradient segmented composite high-voltage insulators on the market, the conductor-side composite insulators typically need to be installed on the corresponding cables. The fixing process usually involves complex fixing connectors with multiple bolts or studs with nuts. This type of fixing requires tightening multiple bolts or nuts, making the operation relatively cumbersome and inconvenient for workers as it hinders the easy insertion and fixing of the cable. Therefore, we propose a gradient segmented composite high-voltage insulator kit. Utility Model Content

[0006] The purpose of this invention is to provide a gradient segmented composite high-voltage insulator kit to address the deficiencies mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A gradient segmented composite high-voltage insulator kit includes a composite high-voltage insulator body, which consists of a metal rod, a tower-side composite insulator at one end of the metal rod, and a conductor-side composite insulator at the other end of the metal rod. A fixed base is fixedly installed at the bottom of the metal rod, and a conductor fixing component is installed at the top of the metal rod. The conductor fixing component includes a base plate fixedly installed at the top of the metal rod, and a support seat fixedly installed on the upper surface of the base plate. The support seat has two symmetrical wire-clamping grooves on the left and right sides, and a central boss is located at the center between the two wire-clamping grooves. A vertically arranged stud is fixedly installed at the center of the top surface of the central boss, and a lower pressure plate is sleeved on the stud. Two symmetrical arc-shaped cover plates are fixedly installed on the top surface of the lower pressure plate, and nuts are threaded onto the stud.

[0009] Preferably, the central boss and the support base are integrally formed, and the cross-section of the arc-shaped cover plate is a quarter-ring shape.

[0010] Preferably, a top plate is fixedly installed on the top surface of the two arc-shaped cover plates, and the upper surface of the top plate is flat.

[0011] Preferably, an elastic washer is fitted onto the nut, and the nut presses the elastic washer tightly onto the top plate.

[0012] Preferably, a central hole is provided at the center of both the top plate and the lower pressure plate, and the stud passes through the central hole.

[0013] Preferably, both the composite insulator on the tower side and the composite insulator on the conductor side have inclined surfaces on their top surfaces, which are inclined downwards at 45° to 60°.

[0014] Preferably, a smooth layer is provided on the surface of the inclined surface, and the thickness of the smooth layer is between 0.1 mm and 0.6 mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, through the setting of wire fixing parts, ensures that when in use, the cable is inserted into the wire clamping groove and then the nut is tightened. As the nut is tightened, it can drive the top plate and the lower pressure plate to move downward, and cooperate with the arc-shaped cover plate to press against the upper side of the cable, thereby realizing the cable fixing operation. The operation is simple and achieves the effect of easy fixing.

[0017] 2. The present invention, through the setting of inclined surfaces and smooth layers, makes it difficult for impurities to accumulate on the surface of composite insulators on the tower side and conductor side. At the same time, rainy weather helps to wash away the dust on the surface of composite insulators on the tower side and conductor side. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the wire fixing component of this utility model;

[0020] Figure 3 This is a partial structural schematic diagram of the wire fixing component of this utility model;

[0021] The meanings of the labels in the diagram are as follows:

[0022] 1. Composite high-voltage insulator body; 10. Tower-side composite insulator; 11. Conductor-side composite insulator; 12. Metal pole; 13. Fixed base; 14. Inclined surface; 15. Smooth layer;

[0023] 2. Wire fixing component; 20. Base plate; 21. Support base; 22. Wire clamping groove; 23. Center boss; 24. Stud; 25. Lower pressure plate; 26. Arc-shaped cover plate; 27. Top plate; 271. Center hole; 28. Elastic washer; 29. ​​Nut. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-3This utility model provides a technical solution: a gradient segmented composite high-voltage insulator kit, including a composite high-voltage insulator body 1. The composite high-voltage insulator body 1 consists of a metal rod 12, a tower-side composite insulator 10 disposed at one end of the metal rod 12, and a conductor-side composite insulator 11 disposed at the other end of the metal rod 12. A fixing base 13 is fixedly installed at the bottom end of the metal rod 12, and the fixing base 13 is fixedly installed on a corresponding external base. A conductor fixing member 2 is provided at the top end of the metal rod 12. The conductor fixing member 2 includes a base plate 20 fixedly installed at the top end of the metal rod 12, and the upper surface of the base plate 20... A support base 21 is fixedly installed. The support base 21 is provided with two symmetrical cable clamping grooves 22. A central boss 23 is provided at the center position between the two cable clamping grooves 22. A vertically arranged stud 24 is fixedly installed at the center position of the top surface of the central boss 23. A lower pressure plate 25 is sleeved on the stud 24. Two symmetrical arc-shaped cover plates 26 are fixedly installed on the top surface of the lower pressure plate 25. Nuts 29 are threaded onto the stud 24. The cable is clamped in the cable clamping groove 22, and then the nuts 29 are tightened to achieve the clamping and fixing operation by using the arc-shaped cover plates 26 to press the upper side of the cable.

[0026] In this embodiment, the central boss 23 and the support base 21 are integrally formed, ensuring that the overall structure is more robust and stable; the cross-section of the arc-shaped cover plate 26 is a quarter ring, which enables the cable to be clamped.

[0027] Specifically, a top plate 27 is fixedly installed on the top surface of the two arc-shaped cover plates 26. The upper surface of the top plate 27 is flat. An elastic washer 28 is fitted on the nut 29. The nut 29 presses the elastic washer 28 onto the top plate 27 to achieve the pressing and fixing operation.

[0028] Furthermore, a center hole 271 is provided at the center position of both the top plate 27 and the lower pressure plate 25, and the stud 24 passes through the center hole 271 for normal up and down sliding operation of the top plate 27 and the lower pressure plate 25.

[0029] In addition, both the top surfaces of the composite insulator 10 on the tower side and the composite insulator 11 on the conductor side are provided with inclined surfaces 14, which are inclined downward at 45° to 60°, so that impurities are not easily accumulated on the top surfaces of the composite insulator 10 on the tower side and the composite insulator 11 on the conductor side.

[0030] It is worth noting that a smooth layer 15 is provided on the surface of the inclined surface 14. The thickness of the smooth layer 15 is between 0.1mm and 0.6mm. The smooth layer 15 can be made by glazing to make its surface smoother, so that it can better wash away the dust on the surface in rainy weather.

[0031] When using the gradient segmented composite high-voltage insulator kit of this utility model, the fixed base 13 is fixedly installed on the external base with fastening bolts. Then, the nut 29 is loosened and the lower pressure plate 25 is slid upward so that the cable can be properly locked in the cable slot 22. After the cable is locked in, the lower pressure plate 25 is straightened and slid down. Finally, the nut 29 is tightened. At this time, the nut 29 can press the top plate 27 and the lower pressure plate 25 downward, so that the arc-shaped cover plate 26 presses against the top of the cable for a pressing operation.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gradient segmented composite high-voltage insulator kit, comprising a composite high-voltage insulator body (1), characterized in that: The composite high-voltage insulator body (1) consists of a metal rod (12), a tower-side composite insulator (10) located at one end of the metal rod (12), and a conductor-side composite insulator (11) located at the other end of the metal rod (12). A fixed base (13) is fixedly installed at the bottom end of the metal rod (12), and a conductor fixing component (2) is provided at the top end of the metal rod (12). The conductor fixing component (2) includes a base plate (20) fixedly installed at the top end of the metal rod (12), and a conductor fixing component (2) is fixedly installed on the upper surface of the base plate (20). A support base (21) is provided with two symmetrical wire-locking grooves (22) on the left and right sides. A central boss (23) is provided at the center position between the two wire-locking grooves (22). A vertically arranged stud (24) is fixedly installed at the center position of the top surface of the central boss (23). A lower pressure plate (25) is sleeved on the stud (24). Two symmetrical arc-shaped cover plates (26) are fixedly installed on the top surface of the lower pressure plate (25). A nut (29) is threaded onto the stud (24).

2. The gradient segmented composite high-voltage insulator kit according to claim 1, characterized in that: The central boss (23) and the support base (21) are integrally formed, and the cross section of the arc-shaped cover plate (26) is a quarter ring.

3. The gradient segmented composite high-voltage insulator kit according to claim 1, characterized in that: A top plate (27) is fixedly installed on the top surface of the two arc-shaped cover plates (26), and the upper surface of the top plate (27) is flat.

4. The gradient segmented composite high-voltage insulator kit according to claim 3, characterized in that: An elastic washer (28) is fitted on the nut (29), and the nut (29) presses the elastic washer (28) onto the top plate (27).

5. The gradient segmented composite high-voltage insulator kit according to claim 4, characterized in that: Both the top plate (27) and the lower pressure plate (25) have a central hole (271) at their center positions, and the stud (24) passes through the central hole (271).

6. The gradient segmented composite high-voltage insulator kit according to claim 1, characterized in that: Both the tower-side composite insulator (10) and the conductor-side composite insulator (11) have inclined surfaces (14) on their top surfaces, which are inclined downwards at 45° to 60°.

7. The gradient segmented composite high-voltage insulator kit according to claim 6, characterized in that: A smooth layer (15) is provided on the surface of the inclined surface (14), and the thickness of the smooth layer (15) is between 0.1 mm and 0.6 mm.

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