An aging-resistant high-voltage porcelain insulator

Abstract

This utility model discloses an aging-resistant high-voltage porcelain insulator, relating to the field of porcelain insulators. It includes a porcelain core with awnings on its outer side. A fixing seat is fixedly connected to the top of the porcelain core, and a groove is formed in the center of the top of the fixing seat. Multiple anti-slip blocks are fixed inside the groove. A U-shaped insert is inserted between the two sides of the top of the fixing seat, and the bottom end of the U-shaped insert is connected to the fixing seat via a locking mechanism. The nano-alumina transition layer has good adhesion and chemical corrosion resistance, providing a stable substrate for the silicone-modified fluorocarbon coating, allowing it to better perform its protective function. The silicone-modified fluorocarbon coating exhibits excellent weather resistance, UV aging resistance, and self-cleaning properties.

Description

Technical Field

[0001] This utility model relates to the field of porcelain insulators, and in particular to an aging-resistant high-voltage porcelain insulator. Background Technology

[0002] High-voltage porcelain insulators play a crucial role in insulation and support in power transmission systems. An insulator is a device installed between conductors at different potentials or between a conductor and a grounding component, capable of withstanding voltage and mechanical stress. Insulators come in many types and shapes. Although different types of insulators vary considerably in structure and appearance, they all consist of two main parts: insulating components and connecting hardware.

[0003] Porcelain insulators are exposed to the natural environment for a long time, and dust and dirt easily accumulate on the surface of the insulators, which increases the surface conductivity, thereby reducing the insulation performance and increasing the risk of corona discharge and flashover.

[0004] Therefore, it is necessary to propose an aging-resistant high-voltage porcelain insulator to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an aging-resistant high-voltage porcelain insulator to solve the problem that when porcelain insulators are exposed to the natural environment for a long time, dust and dirt easily accumulate on the surface of the insulator, leading to an increase in surface resistivity, thereby reducing insulation performance and increasing the risk of corona discharge and flashover.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an aging-resistant high-voltage porcelain insulator, comprising a porcelain core, wherein a skirt is provided on the outer side of the porcelain core;

[0007] The top of the ceramic core is fixedly connected to a fixing base, and a wire groove is opened in the middle of the top of the fixing base. Multiple anti-slip blocks are fixed inside the wire groove.

[0008] A U-shaped rod is inserted between the two sides of the top of the fixed base, and the bottom end of the U-shaped rod is connected to the fixed base through a locking mechanism;

[0009] The bottom end of the ceramic core is connected to a steel foot, and an adjustable-length protective sleeve is provided on the outside of the steel foot.

[0010] Preferably, the locking mechanism includes a transverse insert rod, and the fixed base has a connecting hole for the bottom end of the U-shaped insert rod to extend into. Both the U-shaped insert rod and the fixed base have insertion holes, and a transverse insert rod is inserted between the two insertion holes.

[0011] Both ends of the horizontal insertion rod extend out of the fixing base, and through holes are provided on the two extended ends, with limit pins installed in the through holes.

[0012] Preferably, a plurality of fixing rings are provided at the bottom of the protective sleeve, and corresponding fixing holes are provided at the bottom of the fixing rings and the protective sleeve, with bolts provided between the corresponding fixing holes.

[0013] Preferably, a nut is provided on the outer side of the steel foot.

[0014] Preferably, the outer side of the umbrella skirt is covered with a composite protective layer, which comprises, from the inside out, a nano-alumina transition layer and an organosilicon-modified fluorocarbon coating.

[0015] Preferably, the thickness of the nano-alumina transition layer is 20-50 μm, the thickness of the organosilicon-modified fluorocarbon coating is 80-120 μm, and its surface has a micron-level textured structure.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. After the U-shaped plug is inserted, it can improve the protection and fixation of the wire. The horizontal plug can lock the U-shaped plug and the fixed seat, and the limit pin can lock both ends of the horizontal plug to prevent movement. The insertion and locking connection method makes the connection between the U-shaped plug and the fixed seat more firm and reliable, and can withstand greater mechanical stress. At the same time, it is easy to install and disassemble, improving the maintenance efficiency of the insulator.

[0018] 2. After the wire is placed inside the wire trough, the anti-slip block increases the friction between the wire and the anti-slip block. The anti-slip block can effectively prevent the wire from sliding on the fixed base, ensuring the stable connection of the wire and avoiding electrical faults caused by loose wires.

[0019] 3. The length of the protective sleeve can be increased by increasing the number of retaining rings and using bolts of corresponding lengths. Similarly, the length can be reduced by decreasing the number of retaining rings.

[0020] 4. The nano-alumina transition layer possesses excellent adhesion and chemical corrosion resistance, providing a stable substrate for the silicone-modified fluorocarbon coating and enabling it to better perform its protective function. The silicone-modified fluorocarbon coating exhibits excellent weather resistance, UV aging resistance, and self-cleaning properties, effectively resisting erosion from natural environmental factors such as ultraviolet radiation, wind, rain, and temperature changes. Simultaneously, its micron-level textured surface structure enhances the coating's adhesion and abrasion resistance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the aging-resistant high-voltage porcelain insulator of this utility model.

[0022] Figure 2 This utility model Figure 1 Enlarged diagram of point A in the middle.

[0023] Figure 3 This is a schematic diagram of the bolt and fixing hole of this utility model.

[0024] In the diagram: 1. Umbrella skirt; 2. Fixing base; 3. Cable groove; 4. Protective sleeve; 5. Steel foot; 6. Nut; 7. Anti-slip block; 8. U-shaped insert; 9. Horizontal insert; 10. Limit pin; 11. Through hole; 12. Fixing ring; 13. Bolt; 14. Fixing hole; 15. Connecting hole. Detailed Implementation

[0025] This utility model provides, for example Figures 1-3 The high-voltage porcelain insulator shown includes a porcelain core and an umbrella skirt 1 on the outside of the porcelain core. The umbrella skirt 1 is umbrella-shaped, which can effectively block the intrusion of rainwater and dirt, reduce the occurrence of corona discharge, thereby reducing the electric field strength on the surface of the insulator and improving its electrical insulation performance.

[0026] The top of the ceramic core is fixedly connected to a mounting base 2. A wire groove 3 is provided in the middle of the top of the mounting base 2. Multiple anti-slip blocks 7 are fixed inside the wire groove 3. When the wire is placed inside the wire groove 3, the anti-slip blocks 7 increase the friction between the wire and the wire. The anti-slip blocks 7 can effectively prevent the wire from sliding on the mounting base 2, ensure the stable connection of the wire, and avoid electrical faults caused by loose wires.

[0027] A U-shaped rod 8 is inserted between the two sides of the top of the fixed base 2, and the bottom end of the U-shaped rod 8 is connected to the fixed base 2 through a locking mechanism;

[0028] The locking mechanism includes a horizontal insert rod 9. The fixed base 2 has a connecting hole 15 for the bottom end of the U-shaped insert rod 8 to be inserted. Both the U-shaped insert rod 8 and the fixed base 2 have insertion holes, and the horizontal insert rod 9 is inserted between the two insertion holes.

[0029] Both ends of the horizontal insertion rod 9 extend out of the fixing seat 2, and through holes 11 are provided on the two extended ends. Limit pins 10 are provided in the through holes 11.

[0030] After the U-shaped plug 8 is inserted, it can improve the protection and fixation of the wire. The horizontal plug 9 can lock the U-shaped plug 8 and the fixed seat 2. The limit pin 10 can lock both ends of the horizontal plug 9 to prevent movement. The insertion and locking connection method makes the connection between the U-shaped plug 8 and the fixed seat 2 more firm and reliable, and can withstand greater mechanical stress. At the same time, it is easy to install and disassemble, improving the maintenance efficiency of the insulator.

[0031] A steel foot 5 is connected to the bottom of the porcelain core. An adjustable protective sleeve 4 is provided on the outside of the steel foot 5. The length of the protective sleeve 4 can be adjusted according to the actual installation environment and needs, so as to better protect the steel foot 5 from the corrosion of external environmental factors, extend the service life of the steel foot 5, and thus improve the reliability of the entire insulator.

[0032] Specifically, multiple retaining rings 12 are provided at the bottom of the protective sleeve 4. Both the retaining rings 12 and the bottom of the protective sleeve 4 have corresponding retaining holes 14, and bolts 13 are installed between the corresponding retaining holes 14. By increasing the number of retaining rings 12 and using bolts 13 of corresponding length, the length of the protective sleeve 4 can be increased. Similarly, reducing the number of retaining rings 12 can reduce the length.

[0033] Nuts 6 are provided on the outside of steel foot 5.

[0034] The outer side of the umbrella skirt 1 is covered with a composite protective layer, which consists of a nano-alumina transition layer and an organosilicon-modified fluorocarbon coating from the inside to the outside.

[0035] The thickness of the nano-alumina transition layer is 20-50μm, and the thickness of the organosilicon-modified fluorocarbon coating is 80-120μm, with a micron-level textured surface.

[0036] The nano-alumina transition layer exhibits excellent adhesion and chemical corrosion resistance, providing a stable substrate for the silicone-modified fluorocarbon coating and enhancing its protective function. The silicone-modified fluorocarbon coating, in turn, possesses superior weather resistance, UV aging resistance, and self-cleaning properties, effectively resisting erosion from natural environmental factors such as ultraviolet radiation, wind, rain, and temperature changes. Furthermore, its micron-level textured surface structure increases coating adhesion and abrasion resistance, further improving the insulator's aging resistance and service life.

Claims

1. An aging-resistant high-voltage porcelain insulator, comprising a porcelain core, characterized in that: The outer side of the ceramic core is provided with an umbrella skirt (1); The top of the ceramic core is fixedly connected to a fixing seat (2), and a wire groove (3) is opened in the middle of the top of the fixing seat (2). Multiple anti-slip blocks (7) are fixed inside the wire groove (3). A U-shaped rod (8) is inserted between the two sides of the top of the fixed base (2), and the bottom end of the U-shaped rod (8) is connected to the fixed base (2) through a locking mechanism; The bottom end of the ceramic core is connected to a steel foot (5), and an adjustable protective sleeve (4) is provided on the outside of the steel foot (5).

2. The aging-resistant high-voltage porcelain insulator according to claim 1, characterized in that: The locking mechanism includes a transverse insert (9), and the fixed base (2) is provided with a connecting hole (15) for the bottom end of the U-shaped insert (8) to be inserted. Both the U-shaped insert (8) and the fixed base (2) are provided with insertion holes, and the transverse insert (9) is inserted between the two insertion holes. Both ends of the transverse insert (9) extend out of the fixing seat (2), and through holes (11) are provided on the two extended ends. Limit pins (10) are provided in the through holes (11).

3. The aging-resistant high-voltage porcelain insulator according to claim 1, characterized in that: Multiple fixing rings (12) are provided below the protective sleeve (4). The fixing rings (12) and the bottom of the protective sleeve (4) are provided with corresponding fixing holes (14). Bolts (13) are provided between the corresponding fixing holes (14).

4. The aging-resistant high-voltage porcelain insulator according to claim 1, characterized in that: A nut (6) is provided on the outside of the steel foot (5).

5. The aging-resistant high-voltage porcelain insulator according to claim 1, characterized in that: The outer side of the umbrella skirt (1) is covered with a composite protective layer, which consists of a nano-alumina transition layer and an organosilicon-modified fluorocarbon coating from the inside to the outside.

6. The aging-resistant high-voltage porcelain insulator according to claim 5, characterized in that: The thickness of the nano-alumina transition layer is 20-50 μm, the thickness of the organosilicon-modified fluorocarbon coating is 80-120 μm, and its surface has a micron-level textured structure.

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