A porcelain composite insulator

Abstract

The utility model discloses a kind of porcelain composite insulators, including porcelain insulator, the top of porcelain insulator is fixed with iron cap by cementing agent, iron cap side is equipped with ball socket, the rear side of ball socket is equipped with pinhole, the inside top of ball socket is fixed with two symmetrical positioning lugs, the bottom of porcelain insulator is fixed with steel foot by cementing agent, the bottom end of steel foot is fixed with ball head, the both sides of ball head are equipped with symmetrical positioning slot;The porcelain composite insulator, the ball socket on the iron cap and the ball head of steel foot bottom end are closely matched, and at the same time, the positioning slot of the both sides of ball head and the positioning lug of the inside top of ball socket form clamping position, can effectively prevent the relative rotation between insulators in wind vibration serious area, avoid connection loose, ensure the stability of power transmission, greatly reduce the mechanical damage and insulation performance decline risk caused by rotation.

Description

Technical Field

[0001] This utility model relates to the field of insulator technology, specifically to a ceramic composite insulator. Background Technology

[0002] In power transmission lines, insulators are key insulating support components, and their performance directly affects the safety and stability of power transmission. Traditional insulators have many shortcomings when facing complex and changeable natural environments, especially in areas with severe wind vibration. The connection structure of traditional insulators is simple: the ball head on the steel foot of one insulator is placed in the ball socket on the iron cap of another insulator, and then locked with a locking pin. However, when subjected to vibrations caused by wind over a long period of time, this connection structure is prone to relative rotation between insulators due to the lack of an effective anti-rotation structure. This rotation will gradually cause the connection to loosen, which will not only affect the mechanical strength of the insulator itself, but may also reduce the insulation performance, thereby causing power failure.

[0003] Therefore, this utility model provides a ceramic composite insulator to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a ceramic composite insulator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a porcelain composite insulator, comprising a porcelain insulator, wherein an iron cap is fixed to the top of the porcelain insulator by cement adhesive, a ball socket is formed on the side of the iron cap, a pin hole is formed on the rear side of the ball socket, two symmetrical positioning protrusions are fixed to the top of the inner side of the ball socket, and a steel foot is fixed to the bottom of the porcelain insulator by cement adhesive, a ball head is fixed to the bottom end of the steel foot, and symmetrical positioning grooves are formed on both sides of the ball head.

[0006] As a preferred embodiment of this utility model, the outer side of the porcelain insulator is fitted with a silicone rubber umbrella sleeve, and the bottom of the silicone rubber umbrella sleeve is provided with a silicone rubber skirt.

[0007] As a preferred embodiment of this utility model, a locking pin is engaged with the pin hole of the iron cap, and a rubber pad is fixed to the leg of the locking pin.

[0008] As a preferred embodiment of this utility model, a layer of rubber is provided on the outer side of the ball head at the bottom of the steel foot.

[0009] As a preferred technical solution of this utility model, the ball head at the bottom of the steel foot can be matched with the ball socket on the iron cap, and the positioning grooves on both sides of the ball head can be matched with the two positioning protrusions on the top of the inner side of the ball socket.

[0010] Compared with the prior art, this utility model provides a ceramic composite insulator with the following advantages: This porcelain composite insulator uses a ball socket on the iron cap to fit tightly with the ball head at the bottom of the steel foot. At the same time, the positioning grooves on both sides of the ball head and the positioning protrusion on the top of the inner side of the ball socket form a locking mechanism. This can effectively prevent relative rotation between insulators in areas with severe wind vibration, avoid loosening of the connection, ensure the stability of power transmission, and greatly reduce the risk of mechanical damage and insulation performance degradation caused by rotation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the connection of multiple insulators according to this utility model; Figure 2 This is a front sectional view of the insulator of this utility model; Figure 3 This is a schematic diagram of the iron cap structure of this utility model; Figure 4 This is a schematic diagram of the steel foot structure of this utility model; Figure 5 This is a schematic diagram showing the connection between the iron cap and the steel foot of this utility model; Figure 6 This is a schematic diagram of the locking pin and pin hole fitting together in this utility model; Figure 7 This is a schematic diagram of the positioning protrusion and positioning groove of this utility model.

[0012] Reference numerals: 1. Porcelain insulator; 2. Iron cap; 201. Ball socket; 202. Pin hole; 203. Positioning protrusion; 3. Steel foot; 301. Ball head; 302. Positioning groove; 4. Silicone rubber umbrella sleeve; 5. Locking pin; 6. Rubber pad; 7. Silicone rubber umbrella skirt. Detailed Implementation

[0013] 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.

[0014] Please see Figures 1-7In this embodiment: a porcelain composite insulator includes a porcelain insulator 1. An iron cap 2 is fixed to the top of the porcelain insulator 1 with cement adhesive. A ball socket 201 is formed on the side of the iron cap 2. A pin hole 202 is formed on the rear side of the ball socket 201. Two symmetrical positioning protrusions 203 are fixed to the top inner side of the ball socket 201. A steel foot 3 is fixed to the bottom of the porcelain insulator 1 with cement adhesive. A ball head 301 is fixed to the bottom end of the steel foot 3. Symmetrical positioning protrusions 203 are formed on both sides of the ball head 301. The positioning groove 302, the outer side of the ball head 301 is covered with a layer of rubber skin, the ball head 301 at the bottom of the steel foot 3 can cooperate with the ball socket 201 on the iron cap 2, the positioning grooves 302 on both sides of the ball head 301 can cooperate with the two positioning protrusions 203 on the inner top of the ball socket 201, the pin hole 202 of the iron cap 2 can be engaged with the locking pin 5, the leg of the locking pin 5 is fixed with a rubber pad 6, the outer side of the porcelain insulator 1 is covered with a silicone rubber umbrella sleeve 4, and the bottom of the silicone rubber umbrella sleeve 4 is provided with a silicone rubber umbrella skirt 7.

[0015] Example 1: In manufacturing this porcelain composite insulator, the porcelain insulator 1 is first prepared. An iron cap 2 is fixed to the top of the porcelain insulator 1 using cement adhesive, ensuring a firm connection between the iron cap 2 and the porcelain insulator 1. A ball socket 201 is made on the side of the iron cap 2, and a pin hole 202 is made on the rear side of the ball socket 201. Two symmetrical positioning protrusions 203 are welded to the top of the inner side of the ball socket 201. Simultaneously, a steel foot 3 is fixed to the bottom of the porcelain insulator 1 using cement adhesive, and a ball head 3 is welded to the bottom of the steel foot 3. 01. Symmetrical positioning grooves 302 are made on both sides of the ball head 301. The ball head 301 at the bottom of the steel foot 3 can cooperate with the ball socket 201 on the iron cap 2, thereby realizing the connection between the two insulators. After the ball head 301 cooperates with the ball socket 201, the steel foot 2 is lifted, so that the positioning grooves 302 on both sides of the ball head 301 can cooperate with the two positioning protrusions 203 on the inner top of the ball socket 201 to form an anti-rotation structure. In addition, at this time, the ball head 301 does not block the pin hole 202 on the iron cap 2, so as to... To facilitate the subsequent insertion of the locking pin 5 into the pin hole 202, a silicone rubber shed sleeve 4 is fitted onto the outside of the porcelain insulator 1. The upper and lower edges of the silicone rubber shed sleeve 4 are fixed to the iron cap 2 and steel foot 3 with sealing adhesive to prevent the ends of the silicone rubber shed sleeve 4 from turning outwards or falling off. A silicone rubber skirt 7 is provided at the bottom of the silicone rubber shed sleeve 4 to enhance the insulation performance and anti-pollution flashover capability of the insulator. The locking pin 5 can be engaged with the pin hole 202 of the iron cap 2. Rubber pads 6 are fixed to the legs of the locking pin 5 to prevent… Wear occurs between the locking pin 5 and the ball socket 201 of the iron cap 2 and the ball head 301 of the steel foot 3. A layer of rubber is fitted on the outside of the ball head 301 at the bottom of the steel foot 3 to prevent wear between the ball head 301 and the ball socket 201. This porcelain composite insulator can be used in areas with severe wind vibration. When subjected to wind force, the ball head 301 and the ball socket 201 cooperate, and the positioning groove 302 and the positioning protrusion 203 cooperate, which can effectively prevent the insulator from rotating and ensure the stability of power transmission.

[0016] Example 2: When connecting the insulator, first place the ball head 301 of the bottom steel foot 3 of one insulator into the ball socket 201 of the top iron cap 2 of the other insulator. Then, lift the upper insulator so that the positioning protrusion 203 on the inner top of the ball socket 201 inserts into the positioning grooves 302 on both sides of the ball head 301, thereby forming an anti-rotation structure to prevent the insulator from rotating due to wind vibration or other factors during subsequent use. Next, insert the locking pin 5 from the ball socket 201, pass under the ball head 301, and finally lock it into the pin hole 202 of the iron cap 2, ensuring that the locking pin 5 is installed in place. At this time, the rubber pad 6 on the leg of the locking pin 5 is located at the inner bottom of the ball socket 201 and the ball head 301. Between them, the locking pin 5 and the rubber pad 6 together restrict the downward movement of the ball head 301, preventing the ball head 301 from dislodging from the ball socket 201, thus firmly connecting the two insulators together. Then, the same steps are used to connect multiple insulators in sequence. When it is necessary to disconnect the connection between two insulators, simply press the two legs of the locking pin 5 inward first, and then pull the locking pin 5 outward to pull the locking pin 5 out of the pin hole 202 on the iron cap 2. Then, move the steel foot 3 downward to separate the positioning grooves 302 on both sides of the ball head 301 from the positioning protrusion 203 on the top inner side of the ball socket 201. Finally, remove the ball head 301 from the ball socket 201 to separate the two insulators.

[0017] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A porcelain composite insulator, comprising a porcelain insulator (1), characterized in that: The top of the porcelain insulator (1) is fixed with an iron cap (2) by cement adhesive. A ball socket (201) is opened on the side of the iron cap (2). A pin hole (202) is opened on the rear side of the ball socket (201). Two symmetrical positioning protrusions (203) are fixed on the top of the inner side of the ball socket (201). A steel foot (3) is fixed on the bottom of the porcelain insulator (1) by cement adhesive. A ball head (301) is fixed at the bottom end of the steel foot (3). Symmetrical positioning grooves (302) are opened on both sides of the ball head (301).

2. The ceramic composite insulator according to claim 1, characterized in that: The outer side of the porcelain insulator (1) is fitted with a silicone rubber umbrella sleeve (4), and the bottom of the silicone rubber umbrella sleeve (4) is provided with a silicone rubber skirt (7).

3. A ceramic composite insulator according to claim 1, characterized in that: A locking pin (5) is engaged in the pin hole (202) of the iron cap (2), and a rubber pad (6) is fixed to the leg of the locking pin (5).

4. A ceramic composite insulator according to claim 1, characterized in that: A layer of rubber skin is fitted on the outer side of the ball head (301) at the bottom of the steel foot (3).

5. A ceramic composite insulator according to claim 1, characterized in that: The ball head (301) at the bottom of the steel foot (3) can be engaged with the ball socket (201) on the iron cap (2), and the positioning grooves (302) on both sides of the ball head (301) can be engaged with the two positioning protrusions (203) on the top of the inner side of the ball socket (201).

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