A wet-proof high-voltage post porcelain insulator

Abstract

The utility model discloses a kind of anti-wet flash high-voltage support post porcelain insulator, it is related to porcelain insulator technical field, including column core, the outside of column core is fixedly connected with umbrella disc, and the outside of column core bottom end is equipped with metal cap, the both sides of metal cap inner cavity are provided with auxiliary assembly, and the auxiliary assembly includes sleeve.The utility model is inserted into metal cap by setting auxiliary assembly and adhesive, and column core extrusion fixed block bevel surface makes it shrink into sleeve, after column core bottom reaches metal cap inner cavity bottom, spring pushes fixed block and inserts fixed slot to realize mechanical fixing, and then fill adhesive to complete chemical bonding, this double fixing greatly improves the connection stability of column core and metal cap, can cope with complex working condition and prolong the service life of insulator, even if the performance of adhesive is reduced after long time use, the mechanical fixing formed by auxiliary assembly can also firmly lock metal cap and column core, avoid the problem that metal cap and column core are loose.

Description

Technical Field

[0001] This utility model relates to the field of porcelain insulator technology, and in particular to a high-voltage post porcelain insulator for preventing wet flashover. Background Technology

[0002] An insulator is a device installed between conductors at different potentials or between a conductor and a component at ground potential, capable of withstanding voltage and mechanical stress. It is a special type of insulating control that plays a crucial role in overhead transmission lines. In earlier times, insulators were primarily used on utility poles; gradually, they evolved into disc-shaped insulators hung at one end of high-voltage power line towers to increase creepage distance, typically made of glass or ceramic.

[0003] A patent entitled "Anti-Flashover High-Voltage Post Porcelain Insulator" (patent application number: 202421339856.7) discloses an anti-flashover high-voltage post porcelain insulator, relating to the technical field of post porcelain insulators. It includes a core post with a metal cap at its bottom, the metal cap being fitted onto the core post, and adhesive filling the space between the metal cap and the core post. A circular ring is engaged inside the metal cap, surrounding the outer side of the core post. A limiting component is provided between the circular ring and the core post, the limiting component including an elastic piece and a slot. The slot is formed on the outer wall of the core post, and the elastic piece is fixedly connected to the inner ring of the circular ring, abutting against the bottom of the slot. By setting up the circular ring, elastic piece, and slot, when the elastic piece aligns with the slot, it returns to its original position due to elastic force, abutting against the bottom of the slot, thus achieving the connection between the metal cap and the core post and improving the connection strength between them.

[0004] In the above case, the limiting component composed of the elastic sheet and the slot can only achieve unidirectional limiting of the core column by the elastic force against the bottom of the slot, without forming a mechanical locking structure. When the adhesive fails due to aging in the outdoor environment, the fixing force originally borne by the adhesive is transferred to the elastic sheet. The elastic sheet deforms due to overload, and the limiting function fails. The core column and the metal cap are only matched by the set without other fasteners. In the end, the core column is easy to slide out along the axial direction of the metal cap or shift radially, which can easily lead to the problem of loosening between the metal cap and the core column.

[0005] Therefore, it is necessary to propose a high-voltage post porcelain insulator to prevent wet flashover and solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a high-voltage post porcelain insulator to prevent wet flashover, thereby solving the problem in the background art that the limiting component composed of elastic sheet and slot can only achieve unidirectional limiting of the core column by elastic force against the bottom of the slot, without forming a mechanical locking structure.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage post porcelain insulator for preventing wet flashover, comprising a post core, wherein an umbrella disc is fixedly connected to the outside of the post core, and a metal cap is fitted on the outside of the bottom end of the post core;

[0008] Auxiliary components are provided on both sides of the inner cavity of the metal cap. The auxiliary components include a sleeve, one side of which is fixedly connected to the side of the inner cavity of the metal cap, and a fixing block is slidably connected to the inside of the other side of the sleeve. A sliding plate is fixedly connected to the side of the fixing block, a spring is fixedly connected to the side of the sliding plate, and an auxiliary rod is fixedly connected to the side of the sliding plate. The outside of the auxiliary rod is slidably connected to the inner wall of the sleeve and the metal cap. Fixing grooves are provided on both sides of the core, and the inside of the fixing grooves is inserted into the outside of the fixing block.

[0009] A bird-repelling component is provided at the end of the auxiliary rod away from the sleeve.

[0010] Preferably, the end of the spring away from the slide plate is fixedly connected to the side of the inner cavity of the sleeve, and the outside of the slide plate is slidably connected to the inner wall of the sleeve.

[0011] Preferably, the side of the core contacts the side of the sleeve, and the top of the fixing block is provided with a beveled surface.

[0012] Preferably, the bird deterrent assembly includes a rotating rod, one end of which is rotatably connected to the outside of an auxiliary rod away from the sleeve, and a rotating plate is fixedly connected to the outside of the rotating rod, the outside of which is provided with a reflective coating.

[0013] Preferably, an adhesive is filled between the core and the metal cap, and the outer surface of the umbrella disc is coated with an anti-wet flash coating.

[0014] Preferably, the bottom of the metal cap is fixedly connected to a threaded rod, and the threaded rod is externally threaded with a nut.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. By setting auxiliary components and adhesive, when the column core is inserted into the metal cap, the column core squeezes the beveled surface of the fixing block to retract into the sleeve. After the bottom of the column core touches the bottom of the inner cavity of the metal cap, the spring pushes the fixing block into the fixing groove to achieve mechanical fixation. Then, the adhesive is filled to complete the chemical bonding. This double fixation greatly improves the connection stability between the column core and the metal cap, can cope with complex working conditions and extend the service life of the insulator. Even if the performance of the adhesive deteriorates after long-term use, the mechanical fixation formed by the auxiliary components can firmly lock the metal cap and the column core, avoiding the problem of loosening between the metal cap and the column core. Pulling the auxiliary rod can make the fixing block disengage from the fixing groove, release the mechanical fixation between the column core and the metal cap, and then remove the metal cap, simplifying the recycling operation, realizing the reuse of metal cap resources, reducing waste and lowering operation and maintenance costs.

[0017] 2. By setting up bird deterrent components, the wind drives the rotating plate and rotating rod with reflective coating to rotate. The dynamic reflection can deter birds and prevent them from moving near the insulators and damaging the insulation performance. This reduces the probability of power failure caused by birds and does not consume electricity, making it both environmentally friendly and economical. Attached Figure Description

[0018] Figure 1 This is a partial cross-sectional schematic diagram of the anti-wet flashover high-voltage support porcelain insulator of this utility model.

[0019] Figure 2 In this utility model Figure 1 Enlarged diagram of point A.

[0020] Figure 3 This is a schematic diagram of the rotating plate in this utility model.

[0021] In the diagram: 1. Core; 2. Umbrella disc; 3. Metal cap; 4. Sleeve; 5. Fixing block; 6. Slide plate; 7. Spring; 8. Auxiliary rod; 9. Rotating rod; 10. Rotating plate; 11. Reflective coating; 12. Fixing groove; 13. Beveled surface; 14. Adhesive; 15. Threaded rod; 16. Nut. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0023] This utility model provides, for example Figures 1-3 The illustrated high-voltage post porcelain insulator for preventing flashover includes a post core 1, with an umbrella disc 2 fixedly connected to the outside of the post core 1. A metal cap 3 is fitted onto the outside of the bottom end of the post core 1. Auxiliary components are provided on both sides of the inner cavity of the metal cap 3. The auxiliary components include a sleeve 4. One side of the sleeve 4 is fixedly connected to the side of the inner cavity of the metal cap 3, and a fixing block 5 is slidably connected to the inside of the other side of the sleeve 4. A sliding plate 6 is fixedly connected to the side of the fixing block 5. A spring 7 is fixedly connected to the side of the sliding plate 6, and an auxiliary rod 8 is fixedly connected to the side of the sliding plate 6. The outside of the auxiliary rod 8 is slidably connected to the inner wall of the sleeve 4 and the metal cap 3. Fixing grooves 12 are provided on both sides of the post core 1, and the inside of the fixing grooves 12 is inserted into the outside of the fixing block 5.

[0024] In this insulator assembly, the end of the spring 7 furthest from the slide plate 6 is fixedly connected to the side of the inner cavity of the sleeve 4. The outside of the slide plate 6 is slidably connected to the inner wall of the sleeve 4. The side of the core 1 is in contact with the side of the sleeve 4. The top of the fixing block 5 is provided with a beveled surface 13. During the insulator assembly stage, the core 1 is first inserted into the inner cavity of the metal cap 3. Since the side of the core 1 is in contact with the side of the sleeve 4, the core 1 will contact and be squeezed by the beveled surface 13 on the top of the fixing block 5 during the insertion process. Under the action of the squeezing force, the fixing block 5 will move along the inner wall of the sleeve 4 into the sleeve 4. At the same time, the fixing block 5 drives the slide plate 6, which is fixedly connected to it, to slide on the inner wall of the sleeve 4. The movement of the slide plate 6 will compress the spring 7 fixedly connected to its side, so that the spring 7 is in an energy storage state.

[0025] Continue pushing the core 1 until its bottom is fully in contact with the bottom of the inner cavity of the metal cap 3. At this point, the fixing grooves 12 on both sides of the core 1 correspond exactly to the positions of the fixing blocks 5. As the pressure of the core 1 on the fixing blocks 5 disappears, the spring 7, which is in a stored state, begins to release its elastic force, pushing the slide plate 6 along the inner wall of the sleeve 4 away from the spring 7. The slide plate 6 then drives the fixing blocks 5 to move synchronously, so that the outside of the fixing blocks 5 is inserted into the inside of the fixing grooves 12, completing the mechanical fixation between the core 1 and the metal cap 3.

[0026] Next, adhesive 14 is filled between the core 1 and the metal cap 3. After mechanical fixation is completed, adhesive 14 is filled into the gap between the core 1 and the metal cap 3. After the adhesive 14 is cured according to the specified requirements, the connection between the core 1 and the metal cap 3 is further strengthened by chemical bonding, forming a dual fixation structure of "mechanical fixation + chemical bonding".

[0027] In addition, a bird-repelling assembly is provided at the end of the auxiliary rod 8 away from the sleeve 4. The bird-repelling assembly includes a rotating rod 9, one end of which is rotatably connected to the inside of the end of the auxiliary rod 8 away from the sleeve 4. A rotating plate 10 is fixedly connected to the outside of the rotating rod 9, and the outside of the rotating plate 10 is provided with a reflective coating 11. After the insulator is put into use, the bird-repelling assembly is always in a working standby state. When there is wind in the external environment, the wind will act on the rotating plate 10 in the bird-repelling assembly. Since one end of the rotating rod 9 is rotatably connected to the auxiliary rod 8, under the push of the wind, the rotating plate 10 will drive the rotating rod 9 to rotate around the end of the auxiliary rod 8 away from the sleeve 4.

[0028] During the rotation of the rotating plate 10 and the rotating rod 9, the reflective coating 11 on the outside of the rotating plate 10 will continuously come into contact with sunlight and reflect it. As the rotating plate 10 continues to rotate, the direction of the light reflected by the reflective coating 11 will continuously change, forming a dynamic reflective effect that visually stimulates the surrounding birds.

[0029] In addition, the outer surface of the insulator disc 2 is coated with an anti-flashover coating, and a threaded rod 15 is fixedly connected to the bottom of the metal cap 3. A nut 16 is connected to the external thread of the threaded rod 15. When the insulator operates in humid environments such as rain, fog, or high humidity, the anti-flashover coating on the outer surface of the disc 2 will function. The anti-flashover coating adheres to the outer surface of the disc 2, forming a uniform protective film with special properties. This protective film can change the physical properties of the disc 2 surface, improving its hydrophobicity. When moisture such as rainwater or condensed water comes into contact with the surface of the disc 2, the moisture will exist in the form of small water droplets, rather than spreading to form a continuous water film on the surface of the disc 2. During the installation and connection of the insulator with other electrical equipment, initial positioning is achieved through the threaded rod 15 fixedly connected to the bottom of the metal cap 3. The threaded rod 15 is then passed through the corresponding mounting hole on the electrical equipment, and the nut 16 is aligned with the thread of the threaded rod 15 and tightened by rotation.

[0030] Finally, when the insulator needs to be scrapped due to the expiration of its service life or damage to some components, the metal cap 3 can be easily recycled using the auxiliary rod 8. The operator simply pulls the auxiliary rod 8 outwards, causing the sliding plate 6 to slide along the inner wall of the sleeve 4. The sliding plate 6 then pulls the fixing block 5 out of the fixing groove 12, releasing the mechanical fixation between the core 1 and the metal cap 3. The metal cap 3 can then be removed from the bottom of the core 1. This recycling method is simple and convenient, requiring no complex tools or destructive operations, and ensures the complete recycling of the metal cap 3.

Claims

1. A high-voltage post porcelain insulator for preventing wet flashover, comprising a post core (1), characterized in that: The outer side of the core (1) is fixedly connected to the umbrella plate (2), and the bottom end of the core (1) is fitted with a metal cap (3). Auxiliary components are provided on both sides of the inner cavity of the metal cap (3). The auxiliary components include a sleeve (4). One side of the sleeve (4) is fixedly connected to the side of the inner cavity of the metal cap (3), and a fixing block (5) is slidably connected to the inside of the other side of the sleeve (4). A sliding plate (6) is fixedly connected to the side of the fixing block (5). A spring (7) is fixedly connected to the side of the sliding plate (6), and an auxiliary rod (8) is fixedly connected to the side of the sliding plate (6). The outside of the auxiliary rod (8) is slidably connected to the inner wall of the sleeve (4) and the metal cap (3). Fixing grooves (12) are provided on both sides of the core (1). The inside of the fixing groove (12) is inserted into the outside of the fixing block (5). The auxiliary rod (8) is provided with a bird deterrent component at the end away from the sleeve (4).

2. The anti-flashover high-voltage post porcelain insulator according to claim 1, characterized in that: The end of the spring (7) away from the slide plate (6) is fixedly connected to the side of the inner cavity of the sleeve (4), and the outside of the slide plate (6) is slidably connected to the inner wall of the sleeve (4).

3. The anti-flashover high-voltage post porcelain insulator according to claim 1, characterized in that: The side of the core (1) is in contact with the side of the sleeve (4), and the top of the fixing block (5) is provided with a chamfered surface (13).

4. The anti-flashover high-voltage post porcelain insulator according to claim 1, characterized in that: The bird deterrent assembly includes a rotating rod (9), one end of which is rotatably connected to the inside of the auxiliary rod (8) away from the sleeve (4), and a rotating plate (10) is fixedly connected to the outside of the rotating rod (9), and the outside of the rotating plate (10) is provided with a reflective coating (11).

5. A high-voltage post porcelain insulator for preventing wet flashover according to claim 1, characterized in that: An adhesive (14) is filled between the core (1) and the metal cap (3), and the outer surface of the umbrella disc (2) is coated with an anti-wet flash coating.

6. The anti-flashover high-voltage post porcelain insulator according to claim 1, characterized in that: The bottom of the metal cap (3) is fixedly connected to a threaded rod (15), and the threaded rod (15) is externally threaded to a nut (16).

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