High-performance porcelain lightning protection insulator

Abstract

The utility model discloses a high performance porcelain lightning protection insulator, relates to the insulator technology field, and comprises a core column, the upper end and the lower end of the core column are provided with metal caps through adhesive, the inner wall of each metal cap is fixedly connected with a limiting frame, the limiting frame is of a U-shaped structure, the two sides of the limiting frame are fixedly connected with elastic blocks, and the elastic blocks are fixedly connected with the core column. Supporting blocks are fixedly connected to the faces, close to each other, of the two elastic blocks, a protruding block clamped in the limiting frame is integrally formed on the outer wall of the core column, and the supporting blocks abut against the protruding block. According to the high-performance porcelain lightning protection insulator, the limiting frame, the elastic block, the supporting block and other structures are arranged, the protruding block is clamped in the limiting frame, the metal cap and the core column form a whole, and under cooperation of the adhesive, the stability of connection between the metal cap and the core column is improved, and the service life is prolonged; meanwhile, a plurality of groups of limiting frames and convex blocks are matched, so that the core column cannot incline in the cementing process, and the cementing quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of insulators, in particular to a high-performance porcelain lightning protection insulator. Background Art

[0002] Insulators are devices installed between conductors of different potentials or between conductors and grounded components that can withstand voltage and mechanical stress. There are many types of insulators with different shapes. Although the structures and appearances of different types of insulators are quite different, they are all composed of two major parts: insulating parts and connecting fittings. Insulators are a special type of insulating control that can play an important role in overhead transmission lines. In the early years, insulators were mostly used on utility poles, and gradually developed into a high-type high-voltage power line connection tower with many disc-shaped insulators hung at one end. It is to increase the creepage distance. It is usually made of glass or ceramic, which is called an insulator.

[0003] The core and metal end of the existing porcelain insulators are fixed with adhesives (such as epoxy resin or cement). However, since the porcelain insulators are subjected to great gravity and torsional forces during use, movement between the core and the metal end is likely to occur, which affects the service life.

[0004] Therefore, it is necessary to propose a high-performance porcelain lightning protection insulator to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a high-performance porcelain lightning protection insulator to solve the problem that the core column and the metal end of the existing porcelain insulator are mostly fixed with an adhesive (such as epoxy resin or cement), and since the porcelain insulator is subjected to great gravity and torsional force during use, it is easy to cause movement between the core column and the metal end, thus affecting the service life.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-performance porcelain lightning protection insulator, including a core column, wherein the upper and lower ends of the core column are glued with metal caps by adhesive, and a limiting frame is fixedly connected to the inner wall of the metal cap, and the limiting frame is in a U-shaped structure, and elastic blocks are fixedly connected to both sides of the limiting frame, and support blocks are fixedly connected to the surfaces of the two elastic blocks close to each other, and a protrusion that is clamped in the inside of the limiting frame is integrally formed on the outer wall of the core column, and the support block abuts against the protrusion.

[0007] Preferably, the limiting frames are provided in plurality, and the plurality of limiting frames are evenly distributed around the inner wall of the metal cap.

[0008] Preferably, one end of the support block away from the protrusion is set as an extrusion end, and the extrusion end is set obliquely, and one end of the support block close to the protrusion is set as an abutment end, and the abutment end is in a right angle shape.

[0009] Preferably, a first oblique cut is formed at one end of the elastic block away from the limiting frame.

[0010] Preferably, both ends of the outer wall of the core column are provided with annular grooves, and the annular grooves are located inside the corresponding metal caps.

[0011] Preferably, grooves are formed at both ends of the core column.

[0012] Preferably, an umbrella disc is fixedly connected to the core column, and the umbrella disc is arranged in plurality. A protective structure is arranged on the umbrella disc, and the protective structure includes an insulating coating and an anti-pollution flashover coating. The insulating coating is coated on the outer surface of the umbrella disc, and the anti-pollution flashover coating is arranged on the outside of the insulating coating.

[0013] Preferably, a lightning rod is arranged on one of the metal caps located at the upper position, and a discharge end is fixedly connected to the bottom end of the lightning rod, and a discharge head is arranged on the other metal cap, and the discharge head cooperates with the discharge end.

[0014] Technical effects and advantages of the utility model:

[0015] 1. The utility model sets structures such as a limit frame, an elastic block and a support block, and the convex block is clamped inside the limit frame, so that the metal cap and the core column form a whole, and with the cooperation of the adhesive, the stability of the connection between the metal cap and the core column is improved, and the service life is extended; at the same time, multiple groups of limit frames and convex blocks cooperate, so that the core column will not tilt during the binding process, thereby ensuring the quality of the binding;

[0016] 2. By setting insulating coating and anti-pollution flashover coating, the insulation, heat resistance and other properties of insulators can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the structure of a high-performance porcelain lightning protection insulator.

[0018] Figure 2 This is a schematic diagram of the core column and umbrella plate structure of the utility model.

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure in the middle.

[0020] Figure 4 For this utility model Figure 2 Enlarged schematic diagram of the structure at point B in the middle.

[0021] Figure 5 This is a schematic diagram of the metal cap and the limiting frame structure of the utility model.

[0022] In the figure: 1, core column; 2, umbrella plate; 3, metal cap; 4, abutment end; 5, lightning rod; 6, discharge end; 7, discharge head; 8, limit frame; 9, elastic block; 10, support block; 11, first oblique cut; 12, protrusion; 13, annular groove; 14, groove; 15, insulating coating; 16, anti-pollution flashover coating; 17, extrusion end. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clarify the technical solutions in the embodiments of the utility model; it is completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. 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.

[0024] The utility model provides Figure 1 to Figure 5 A high-performance porcelain lightning protection insulator shown includes a core column 1, and a metal cap 3 is glued to the upper and lower ends of the core column 1 by adhesive. In order to improve the stability of the connection between the metal cap 3 and the core column 1, a limit frame 8 is fixedly connected to the inner wall of the metal cap 3, and the limit frames 8 are provided in multiple numbers, and the multiple limit frames 8 are evenly distributed around the inner wall of the metal cap 3. The limit frame 8 is a U-shaped structure, and elastic blocks 9 are fixedly connected to both sides of the limit frame 8. When used, the limit frame 8 can be integrally formed with the metal cap 3, and the elastic blocks 9 are welded to the limit frame 8. A protrusion 12 that is clamped inside the limit frame 8 is integrally formed on the outer wall of the core column 1, and a support block 10 is fixedly connected to the side where the two elastic blocks 9 are close to each other, and the support block 10 abuts against the protrusion 12.

[0025] A first oblique cut 11 is formed at one end of the elastic block 9 away from the limiting frame 8 , so as to facilitate the insertion of the protrusion 12 between the two elastic blocks 9 .

[0026] During operation, the position of the protrusion 12 is matched with the position of the limit frame 8, and the core column 1 is pressed into the metal cap 3. The protrusion 12 is first inserted between the two elastic blocks 9, so that the two elastic blocks 9 are opened in a V shape, and then the protrusion 12 is clamped in the inside of the limit frame 8, and the support block 10 abuts against the protrusion 12, so that the protrusion 12 will not slide in the opposite direction. The metal cap 3 and the core column 1 form a whole, and with the cooperation of the adhesive, the stability of the connection between the metal cap 3 and the core column 1 is improved; at the same time, multiple groups of limit frames 8 and protrusions 12 cooperate, so that the core column 1 will not tilt during the binding process, thereby ensuring the quality of the binding.

[0027] By setting structures such as a limit frame 8, an elastic block 9 and a support block 10, the protrusion 12 is clamped in the inside of the limit frame 8, and the metal cap 3 and the core column 1 form a whole. With the cooperation of the adhesive, the stability of the connection between the metal cap 3 and the core column 1 is improved, and the service life is extended; at the same time, multiple groups of limit frames 8 and protrusions 12 cooperate, so that the core column 1 will not tilt during the binding process, thereby ensuring the quality of the binding.

[0028] In order to enable the protrusion 12 to be quickly snapped into the inside of the limit frame 8, the end of the support block 10 away from the protrusion 12 is set as an extrusion end 17, and the extrusion end 17 is set at an angle to facilitate the protrusion 12 to slide downward; the end of the support block 10 close to the protrusion 12 is set as an abutment end 4, and the abutment end 4 is a right angle to prevent the protrusion 12 from sliding in the opposite direction.

[0029] Both ends of the outer wall of the stem 1 are provided with annular grooves 13, which are located inside the corresponding metal cap 3, and both ends of the stem 1 are provided with grooves 14. The adhesive penetrates into the annular grooves 13 and the grooves 14 to improve the stability of the connection between the metal cap 3 and the stem 1.

[0030] The core column 1 is fixedly connected with an umbrella plate 2, and both the core column 1 and the umbrella plate 2 are made of porcelain material; the umbrella plate 2 is provided in multiple numbers, and a protective structure is provided on the umbrella plate 2, and the protective structure includes an insulating coating 15 and an anti-pollution flashover coating 16, the insulating coating 15 is coated on the outer surface of the umbrella plate 2, and the anti-pollution flashover coating 16 is provided outside the insulating coating 15. The insulating coating 15 can use materials such as, but not limited to, acrylic resin, and has excellent insulation and heat resistance properties, and can maintain a stable insulation effect under high temperature and high pressure; the anti-pollution flashover coating 16 can use materials such as, but not limited to, PRTV anti-pollution flashover coating, and has water resistance and water repellency properties.

[0031] By providing the insulating coating 15 and the anti-pollution flashover coating 16, the insulation and heat resistance properties of the insulator are improved.

[0032] One of the metal caps 3 located at the upper position is provided with a lightning rod 5, the bottom end of which is fixedly connected to a discharge end 6, and the other metal cap 3 is provided with a discharge head 7, which cooperates with the discharge end 6. When in use, a wiring clamp and other structures are also provided to cooperate with the lightning rod 5, the discharge end 6 and the discharge head 7 to achieve a lightning protection effect. The lightning protection insulator and its working principle are both existing common technologies and will not be described in detail here.

Claims

1. A high-performance porcelain lightning protection insulator, comprising a core column (1), characterized in that: The upper and lower ends of the core column (1) are both glued with metal caps (3) by means of adhesive, and a limiting frame (8) is fixedly connected to the inner wall of the metal cap (3), and the limiting frame (8) is of a U-shaped structure. Both sides of the limiting frame (8) are fixedly connected with elastic blocks (9), and the surfaces of the two elastic blocks (9) close to each other are fixedly connected with support blocks (10), and a convex block (12) is integrally formed on the outer wall of the core column (1) and is clamped inside the limiting frame (8), and the support block (10) abuts against the convex block (12).

2. A high performance porcelain lightning protection insulator according to claim 1, characterized in that: The limiting frames (8) are arranged in plurality, and the plurality of limiting frames (8) are evenly distributed around the inner wall of the metal cap (3).

3. A high performance porcelain lightning protection insulator according to claim 1, characterized in that: One end of the support block (10) away from the protrusion (12) is arranged as an extrusion end (17), and the extrusion end (17) is arranged obliquely; one end of the support block (10) close to the protrusion (12) is arranged as an abutment end (4), and the abutment end (4) is in a right angle shape.

4. A high performance porcelain lightning protection insulator according to claim 1, characterized in that: A first oblique cut (11) is formed at one end of the elastic block (9) away from the limiting frame (8).

5. A high performance porcelain lightning protection insulator according to claim 1, characterized in that: Both ends of the outer wall of the core column (1) are provided with annular grooves (13), and the annular grooves (13) are located inside the corresponding metal cap (3).

6. A high performance porcelain lightning protection insulator according to claim 1, characterized in that: Grooves (14) are provided at both ends of the core column (1).

7. A high performance porcelain lightning protection insulator according to claim 1, characterized in that: The core column (1) is fixedly connected to an umbrella disc (2), wherein the umbrella disc (2) is arranged in a plurality, and a protective structure is arranged on the umbrella disc (2), wherein the protective structure comprises an insulating coating (15) and an anti-pollution flashover coating (16), wherein the insulating coating (15) is coated on the outer surface of the umbrella disc (2), and the anti-pollution flashover coating (16) is arranged outside the insulating coating (15).

8. A high performance porcelain lightning protection insulator according to claim 7, characterized in that: One of the metal caps (3) located at the upper position is provided with a lightning rod (5), the bottom end of which is fixedly connected to a discharge end (6), and the other metal cap (3) is provided with a discharge head (7), which cooperates with the discharge end (6).

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