Windproof line cross arm insulator

Abstract

The utility model discloses a windproof line cross arm insulator, which belongs to the technical field of electric porcelain equipment and comprises a ceramic disc, a porcelain column is arranged in the center of the ceramic disc, the centers of the upper end face and the lower end face of the porcelain column are provided with sinking grooves, the groove walls of the sinking grooves are provided with through holes, and the through holes are matched with elastic rubber columns and through holes formed in the end portions of hanging rings. The elastic rubber column and the hanging ring are locked through the nut, the hanging ring can be connected with the hanging base and the wire base, and the hanging base is installed on the bottom face of the cross arm. The ceramic plates of the insulator are connected through the elastic rubber columns, so that the insulator has better insulation performance and larger activity margin, the length can be freely adjusted, wiring can be performed in a vertical series connection mode and a V-shaped series connection mode, a wire can be conveniently installed on a cross arm of an electric tower, and the service life of the insulator is prolonged. And the elastic connection mode can effectively buffer the stress generated by the wire in extreme weather, so that the wire is not easy to break and has excellent windproof performance.

Description

Technical Field

[0001] This utility model relates to the field of electrical porcelain equipment technology, specifically to a windproof line crossarm insulator. Background Technology

[0002] Insulators are critical components used in power systems and electrical equipment. They are typically made of ceramics, glass, rubber, or plastics and are used to isolate conductors and protect electrical equipment from external environmental influences. Their main functions are to improve the insulation strength of electrical equipment and ensure its safe operation. There are various types of insulators, including pin insulators, post insulators, and crossarm insulators. Crossarm insulators are installed on the crossarms of power towers to isolate conductors from the tower, prevent current leakage, and support the conductors, bearing their mechanical loads. Traditional crossarm insulators use a rigid, integrated design, which cannot be adjusted in size, resulting in poor applicability. They are also prone to breakage in extreme weather conditions, requiring frequent replacement and incurring high maintenance costs. A new type of insulator is needed to address these issues. Utility Model Content

[0003] To solve the above problems, this utility model proposes a windproof line crossarm insulator, including a ceramic disc with a ceramic post at the center. The ceramic post has a groove at the center of both the upper and lower end faces. The groove wall has a through hole, which mates with a through hole at the end of an elastic rubber post and a hanging ring. After the pin bolt passes through the through hole and the through hole, the elastic rubber post and the hanging ring are locked by a nut. The hanging ring can connect to the bracket and the conductor bracket. The bracket is installed on the bottom surface of the crossarm.

[0004] Furthermore, a metal cap is built into the settling tank, and the metal cap is connected to the inner wall of the settling tank by cement. The settling tank has a through hole that penetrates the cement layer and the edge of the metal cap. The bottom surface of the metal cap is flush with the end face of the ceramic column, and the inner diameter of the metal cap is fitted with the elastic rubber column and the end of the hanging ring with a clearance.

[0005] Furthermore, a metal tube is embedded in the through hole of the elastic rubber column, and several nylon rope loops are sleeved between the two metal tubes. The nylon rope loops are twisted into a braid shape in the middle. The elastic rubber column body is made of cast rubber, and the braided rope body is located at the center of the column body.

[0006] Furthermore, the elastic rubber column body is provided with several rings of umbrella skirts along the axial direction, and the end umbrella skirts are attached to the end face of the ceramic column.

[0007] Furthermore, the bottom surface of the ceramic plate is provided with several concentric raised rings.

[0008] The beneficial effects of this utility model are as follows: The ceramic discs of this utility model are connected by elastic rubber columns, and the combined insulator has better insulation performance and greater mobility. The length can be freely adjusted according to actual installation needs. It can be wired by vertical series connection and V-type series connection, which facilitates the installation of conductors on the crossarm of the power tower. The elastic connection method can effectively buffer the stress generated by the conductor under extreme weather conditions, making it less prone to breakage and providing excellent wind resistance. Attached Figure Description

[0009] Figure 1 This is a front view structural diagram of the present utility model;

[0010] Figure 2 This is a front view of the structural cross-section of this utility model;

[0011] Figure 3 This is a schematic diagram of the installation of this utility model.

[0012] The following are explanations of the reference numerals in the attached diagram: 1. Ceramic disc; 101. Ceramic column; 102. Sink; 103. Convex ring; 2. Elastic rubber column; 201. Umbrella skirt; 3. Hanging ring; 4. Pin bolt; 5. Hanging seat; 6. Wire seat; 7. Metal cap; 8. Metal tube; 9. Nylon rope ring. Detailed Implementation

[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] The present invention will be further described below with reference to the accompanying drawings:

[0016] like Figures 1 to 3As shown, a windproof line crossarm insulator includes a ceramic disc 1. The bottom surface of the ceramic disc 1 has several concentric raised rings 103. A ceramic post 101 is located at the center of the ceramic disc 1. A recessed groove 102 is formed at the center of both the upper and lower end faces of the ceramic post 101. A metal cap 7 is placed inside the recessed groove 102. The metal cap 7 is connected to the inner wall of the recessed groove 102 by cement. The bottom surface of the metal cap 7 is flush with the end face of the ceramic post 101. The inner diameter of the metal cap 7 is clearance-fitted with the ends of the elastic rubber post 2 and the hanging ring 3. A through-hole is formed in the groove wall of the recessed groove 102, penetrating the cement layer and the edge of the metal cap 7. The through-hole mates with through holes formed at the ends of the elastic rubber post 2 and the hanging ring 3. A pin bolt 4 passes through the through-hole and the through hole, and then a nut locks the elastic rubber post 2 and the hanging ring 3 together. The hanging ring 3 can connect to a hanger 5 and a conductor seat 6. The hanger 5 is installed on the bottom surface of the crossarm.

[0017] In this embodiment, the elastic rubber column 2 has several umbrella-shaped skirts 201 along its axial direction. The end umbrella-shaped skirts 201 are attached to the end face of the ceramic column 101. A metal tube 8 is embedded in the through hole of the elastic rubber column 2, and several nylon rope loops 9 are sleeved between the two metal tubes 8. The nylon rope loops 9 are twisted into a braid shape in the middle to improve the tensile strength of the elastic rubber column 2. During production, the elastic rubber column 2 is formed by casting and cooling hot melt rubber, and the braided rope is embedded in the center of the column.

[0018] The working principle of this utility model is as follows:

[0019] Determine the number of ceramic discs 1 to be connected in series according to the installation dimensions. Insert the elastic rubber post 2 into the groove 102 on the opposite side of two adjacent ceramic discs 1, ensuring that the through hole of the ceramic disc 1 is aligned with the through hole of the elastic rubber post 2. Insert the pin bolt 4 into the through hole for fixation. After connecting all ceramic discs 1 in series in the above manner, a complete insulator is formed. Install hanging rings 3 in the groove 102 at the outer end of the top and bottom ceramic discs 1. Connect one end of the hanging ring 3 to the bracket 5, and the other end of the hanging ring 3 to the conductor seat 6. Thread the conductor through the conductor seat 6 to complete the installation. When it is necessary for the insulator to support the upper and lower conductors, connect both ends of the hanging rings 3 to the conductor seat 6, and thread the upper and lower conductors through the two conductor seats 6 respectively.

[0020] The ceramic discs 1 of this invention are connected by elastic rubber posts 2, which have better insulation performance and greater flexibility. The length can be freely adjusted, and wiring can be carried out by vertical series connection and V-type series connection. It is convenient for the installation of wires on the crossarm of the power tower. The elastic connection can effectively buffer the stress generated by the wires under extreme weather conditions, making them less prone to breakage and providing excellent wind resistance.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A windproof line crossarm insulator, comprising a ceramic disc (1), characterized in that: The ceramic disc (1) has a ceramic column (101) at its center. The upper and lower end faces of the ceramic column (101) are both provided with grooves (102). The groove wall of the groove (102) has through holes. The through holes are matched with the through holes at the ends of the elastic rubber column (2) and the hanging ring (3). After the pin bolt (4) passes through the through holes and the through holes, the elastic rubber column (2) and the hanging ring (3) are locked by the nut. The hanging ring (3) can connect the hanging seat (5) and the wire seat (6). The hanging seat (5) is installed on the bottom surface of the crossarm.

2. The windproof line crossarm insulator according to claim 1, characterized in that: The settling tank (102) has a built-in metal cap (7), which is connected to the inner wall of the settling tank (102) by cement. The settling tank (102) has a through hole that penetrates the cement layer and the edge of the metal cap (7). The bottom surface of the metal cap (7) is flush with the end face of the ceramic column (101), and the inner diameter of the metal cap (7) is in clearance fit with the end of the elastic rubber column (2) and the hanging ring (3).

3. A windproof line crossarm insulator according to claim 1, characterized in that: The elastic rubber column (2) has a metal tube (8) embedded in its through hole. Several nylon rope loops (9) are fitted between the two metal tubes (8). The nylon rope loops (9) are twisted into a braid shape in the middle. The elastic rubber column (2) is made of rubber and the braided rope is located at the center of the column.

4. A windproof line crossarm insulator according to claim 1, characterized in that: The elastic rubber column (2) has several umbrella skirts (201) along its axial direction, and the end umbrella skirts (201) are attached to the end face of the ceramic column (101).

5. A windproof line crossarm insulator according to claim 1, characterized in that: The bottom surface of the ceramic disc (1) is provided with several concentric raised rings (103).

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