Wet flashover-proof high-voltage post porcelain insulator

Abstract

The utility model discloses an anti-wet flashover high-voltage post porcelain insulator, which relates to the technical field of post porcelain insulators, and comprises a core column, a metal cap is arranged at the bottom of the core column, the metal cap is sleeved on the core column, an adhesive is filled between the metal cap and the core column, a circular ring is clamped in the metal cap, and the circular ring is sleeved on the core column. The circular ring surrounds the outer side of the core column, a limiting assembly is arranged between the circular ring and the core column, the limiting assembly comprises an elastic piece and a clamping groove, the clamping groove is formed in the outer wall of the core column, the elastic piece is fixedly connected to the inner ring of the circular ring, and the elastic piece abuts against the bottom of the clamping groove. According to the wet-flashover-proof high-voltage pillar porcelain insulator, the circular ring, the elastic sheet, the clamping groove and other structures are arranged, when the elastic sheet corresponds to the clamping groove, the elastic sheet is reset due to elastic force and abuts against the bottom of the clamping groove, butt joint of the metal cap and the core column is achieved, and the connection strength between the metal cap and the core column is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pillar porcelain insulators, in particular to a moisture-flash-proof high-voltage pillar porcelain insulator. Background Art

[0002] Insulators are devices installed between conductors of different potentials or between conductors and ground potential components, which can withstand voltage and mechanical stress. It is a special insulating control that can play an important role in overhead transmission lines. In the early years, insulators were mostly used on telegraph poles, and gradually developed into high-type high-voltage wire connection towers with many disc-shaped insulators hung on one end. It is to increase the creepage distance. It is usually made of glass or ceramics, which is called an insulator.

[0003] The porcelain parts and metal parts of the existing pillar porcelain insulators are usually fixed with adhesives, which may cause the risk of loosening after long-term outdoor use.

[0004] Therefore, it is necessary to propose a moisture-flashproof high-voltage post porcelain insulator to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a moisture-flash-proof high-voltage post porcelain insulator to solve the hidden danger that the porcelain parts and metal parts of the existing post porcelain insulator are usually fixed with adhesives, and are prone to loosening after long-term outdoor use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a moisture-flashproof high-voltage pillar porcelain insulator, comprising a core column, a metal cap is arranged at the bottom of the core column, the metal cap is sleeved on the core column, adhesive is filled between the metal cap and the core column, a circular ring is clamped inside the metal cap, the circular ring surrounds the outer side of the core column, a limiting assembly is arranged between the circular ring and the core column, the limiting assembly comprises an elastic sheet and a slot, the slot is opened on the outer wall of the core column, the elastic sheet is fixedly connected to the inner ring of the circular ring, and the elastic sheet abuts against the bottom of the slot.

[0007] Preferably, the limiting components are arranged in multiple groups, and the multiple groups of limiting components are evenly distributed around the core column.

[0008] Preferably, a square groove is formed inside the metal cap, and a protrusion is integrally formed at the bottom of the core column, and the protrusion is inserted into the inside of the square groove.

[0009] Preferably, an umbrella disc is fixedly provided on the core column, and the umbrella disc is provided in plurality and the plurality of umbrella discs are distributed at equal distances.

[0010] Preferably, flanges are integrally formed at the edges of the bottom surface of the umbrella plate.

[0011] Preferably, the outer surface of the umbrella plate is coated with an anti-wet flash coating layer.

[0012] Preferably, a threaded rod is integrally formed at the bottom of the metal cap, a washer is sleeved on the threaded rod, and a nut is threadedly connected to the threaded rod.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model provides a circular ring, an elastic sheet, a card slot and other structures. When the elastic sheet corresponds to the card slot, the elastic sheet is reset due to elastic force and abuts against the bottom of the card slot, thereby achieving the docking of the metal cap and the stem, and improving the connection strength between the metal cap and the stem;

[0015] 2. The outer surface of the umbrella plate is coated with an anti-wet flash coating layer, which makes the umbrella plate have the effect of anti-wet flash;

[0016] 3. In a humid environment, water droplets slide on the anti-wet flash coating layer of the umbrella disc, and the flange can block discontinuous water droplets, preventing the water droplets from transferring to the part of the inner side of the umbrella disc that is not coated with the anti-wet flash coating layer, saving the use of anti-wet flash coating without affecting the anti-wet flash effect, thereby reducing the production cost of insulators. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model anti-wet flashover high-voltage post porcelain insulator.

[0018] Figure 2 The utility model is a schematic diagram of the cross-sectional structure of the moisture-flashback-proof high-voltage post porcelain insulator.

[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] In the figure: 1, core column; 2, umbrella plate; 3, metal cap; 4, square groove; 5, bump; 6, ring; 7, elastic sheet; 8, slot; 9, flange; 10, anti-wet flash coating layer; 11, nut; 12, washer; 13, threaded rod. DETAILED DESCRIPTION

[0022] 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.

[0023] The utility model provides Figure 1 to Figure 4 The wet flashover proof high voltage pillar porcelain insulator shown comprises a core column 1, a metal cap 3 is arranged at the bottom of the core column 1, the metal cap 3 is mounted on the core column 1, and adhesive is filled between the metal cap 3 and the core column 1. In order to improve the connection strength between the metal cap 3 and the core column 1, a circular ring 6 is clamped inside the metal cap 3, the circular ring 6 surrounds the outer side of the core column 1, and a limiting component is arranged between the circular ring 6 and the core column 1. The limiting component is arranged in multiple groups, and the multiple groups of limiting components are evenly distributed around the core column 1. The limiting component comprises an elastic sheet 7 and a slot 8, the slot 8 is provided on the outer wall of the core column 1, the elastic sheet 7 is fixedly connected to the inner ring of the circular ring 6, and the elastic sheet 7 abuts against the bottom of the slot 8.

[0024] Specifically, before the metal cap 3 and the stem 1 are glued together, the ring 6 is clamped inside the metal cap 3, and the inner wall of the metal cap 3 and the outer wall of the ring 6 are both set to be frosted and have a certain friction. When the ring 6 is clamped inside the metal cap 3, it is not easy to fall off. In addition, it can be reinforced by welding or other methods. Then, the stem 1 is inserted into the metal cap 3. When the end of the stem 1 abuts on the elastic sheet 7, the bottom end of the elastic sheet 7 will be squeezed to bend toward the inner wall of the metal cap 3, which is convenient for the stem 1 to move downward. When the elastic sheet 7 corresponds to the slot 8, the elastic sheet 7 is reset due to the elastic force and abuts on the bottom of the slot 8, so that the metal cap 3 and the stem 1 are connected. Because the elastic sheet 7 abuts on the bottom of the slot 8, the stem 1 will not slide in the opposite direction, thereby improving the connection strength between the metal cap 3 and the stem 1.

[0025] Next, the metal cap 3 and the stem 1 are filled with adhesive.

[0026] The utility model provides structures such as a circular ring 6, an elastic sheet 7 and a slot 8. When the elastic sheet 7 corresponds to the slot 8, the elastic sheet 7 is reset due to elastic force and abuts against the bottom of the slot 8, thereby achieving the docking of the metal cap 3 and the stem 1 and improving the connection strength between the metal cap 3 and the stem 1.

[0027] In order to prevent the stem 1 from tilting, a square groove 4 is provided inside the metal cap 3 , and a protrusion 5 is integrally formed at the bottom of the stem 1 , and the protrusion 5 is inserted into the square groove 4 .

[0028] Specifically, the stem 1 is inserted into the metal cap 3 , and the protrusion 5 is inserted into the square groove 4 to prevent the stem 1 from tilting.

[0029] An umbrella disc 2 is fixedly arranged on the core column 1. The umbrella disc 2 is arranged in plurality and the plurality of umbrella discs 2 are distributed at equal distances.

[0030] The edges of the bottom surface of the umbrella plate 2 are all integrally formed with flanges 9. The outer surface of the umbrella plate 2 is coated with an anti-wet flash coating layer 10, so that the umbrella plate 2 has an anti-wet flash effect.

[0031] In a humid environment, water droplets slide on the anti-wet flash coating layer 10 of the umbrella plate 2, and the flange 9 can block discontinuous water droplets, preventing the water droplets from transferring to the part of the inner side of the umbrella plate 2 that is not coated with the anti-wet flash coating layer 10, thereby saving the use of anti-wet flash coating without affecting the anti-wet flash effect, thereby reducing the production cost of insulators.

[0032] To facilitate the installation of the post porcelain insulator, a threaded rod 13 is integrally formed at the bottom of the metal cap 3, a washer 12 is mounted on the threaded rod 13, and a nut 11 is threadedly connected to the threaded rod 13. When in use, the post porcelain insulator is fixedly installed on the power equipment by the threaded rod 13, the washer 12 and the nut 11.

Claims

1. A moisture-flashproof high-voltage post porcelain insulator, comprising a core column (1), characterized in that: A metal cap (3) is arranged at the bottom of the core column (1), the metal cap (3) is mounted on the core column (1), adhesive is filled between the metal cap (3) and the core column (1), a circular ring (6) is clamped inside the metal cap (3), the circular ring (6) surrounds the outer side of the core column (1), a limiting component is arranged between the circular ring (6) and the core column (1), the limiting component comprises an elastic sheet (7) and a clamping groove (8), the clamping groove (8) is opened on the outer wall of the core column (1), the elastic sheet (7) is fixedly connected to the inner ring of the circular ring (6), and the elastic sheet (7) abuts against the bottom of the clamping groove (8).

2. The anti-wet flashover high voltage post porcelain insulator according to claim 1, characterized in that: The limiting components are arranged in multiple groups, and the multiple groups of limiting components are evenly distributed around the core column (1).

3. The anti-wet flashover high voltage post porcelain insulator according to claim 1, characterized in that: A square groove (4) is provided inside the metal cap (3), and a convex block (5) is integrally formed at the bottom of the core column (1), and the convex block (5) is inserted into the inside of the square groove (4).

4. The anti-wet flashover high voltage post porcelain insulator according to claim 3, characterized in that: An umbrella disc (2) is fixedly arranged on the core column (1), and the umbrella disc (2) is arranged in plurality, and the plurality of umbrella discs (2) are distributed at equal distances.

5. The anti-wet flashover high voltage post porcelain insulator according to claim 4, characterized in that: The edges of the bottom surface of the umbrella plate (2) are all integrally formed with flanges (9).

6. The anti-wet flashover high voltage post porcelain insulator according to claim 5, characterized in that: The outer surface of the umbrella plate (2) is coated with an anti-wet flash coating layer (10).

7. The anti-wet flashover high voltage post porcelain insulator according to claim 6, characterized in that: A threaded rod (13) is integrally formed at the bottom of the metal cap (3), a washer (12) is sleeved on the threaded rod (13), and a nut (11) is threadedly connected to the threaded rod (13).

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