Electric porcelain insulator with anti-seismic structure

Abstract

The utility model relates to the technical field of electric porcelain insulators, in particular to an electric porcelain insulator with an anti-seismic structure, which comprises a connecting pipe main body, a plurality of damping mechanisms are fixedly mounted at the top end and the bottom end of the connecting pipe main body respectively, each damping mechanism comprises a mounting base, and the mounting bases are fixedly mounted at the top end of the connecting pipe main body. The shock absorption columns are fixedly mounted at the top end of the mounting base and penetrate into the mounting base, the insulation mechanism is fixedly connected between the shock absorption mechanisms and comprises a plurality of connecting columns, the connecting columns are distributed between the mounting bases, and the insulation umbrella skirts are fixedly connected between the connecting columns. According to the utility model, through mutual cooperation between the internal parts of the damping mechanism and the internal parts of the insulating mechanism, the shock resistance of the electric porcelain insulator can be improved, and the problem that umbrella skirts are collided and broken due to poor shock resistance of the electric porcelain insulator in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric porcelain insulators, and particularly relates to an electric porcelain insulator with an earthquake-resistant structure. Background Art

[0002] Insulators are important components of transmission lines. They are the only electrical insulation components and important structural support components. The performance of insulators and the rationality of their configuration directly affect the safe and stable operation of the lines. The insulators used in the transmission lines of power supply bureaus are mainly divided into two categories. One is the disc suspension glass insulator applied to the tension string, and the other is the rod suspension composite insulator applied to the suspension string and the jumper string. During long-term operation, the two types of insulators show different operating performances and characteristics.

[0003] Insulators are installed at high altitudes, where the air flow is relatively intense, which easily causes the insulators and the lines to shake and vibrate. Therefore, the earthquake resistance of insulators is very important, which is related to the safe operation of the power grid.

[0004] Most of the umbrella skirts on the outer wall of the existing electric porcelain insulators in the market are ceramic products. Due to the poor earthquake resistance of the existing electric porcelain insulators, when the electric porcelain insulators vibrate due to external factors, the umbrella skirts are easily knocked against each other and broken. Therefore, it is very necessary for us to propose an electric porcelain insulator with an earthquake-resistant structure to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide an electric porcelain insulator with an earthquake-resistant structure. Through the mutual cooperation between the internal parts of the shock absorption mechanism and the internal parts of the insulation mechanism, the earthquake resistance of the electric porcelain insulator can be improved, so as to solve the problem that the umbrella skirts of the existing electric porcelain insulators are knocked against each other and broken due to poor earthquake resistance.

[0006] In order to achieve the above purpose, the utility model provides the following technical solution: an electric porcelain insulator with an earthquake-resistant structure, including a connecting pipe main body, and a plurality of shock absorption mechanisms are respectively installed and fixed at the top end and the bottom end of the connecting pipe main body, and an insulation mechanism is connected and fixed between the shock absorption mechanisms;

[0007] The shock absorption mechanism includes an installation base, the installation base is installed and fixed at the top end of the connecting pipe main body, a shock absorption column is installed and fixed at the top end of the installation base and penetrates into the interior of the installation base, a limiting plate is installed and fixed at the bottom end of the shock absorption column and is located inside the installation base, a limiting ring is sleeved and fixed on the outer wall of the shock absorption column and is located inside the installation base, a limiting spring is sleeved and fixed on the outer wall of the shock absorption column and is located between the limiting ring and the limiting plate, and a plurality of connecting rings are slidably sleeved on both sides of the outer wall of the limiting ring and are located inside the installation base, and a telescopic spring is connected and fixed on the side of the connecting ring away from the limiting ring;

[0008] The insulating mechanism includes a plurality of connecting columns, the plurality of connecting columns are distributed between the mounting bases, an insulating umbrella skirt is fixedly connected between the plurality of connecting columns, a connecting plate is fixedly installed at the bottom end of the connecting column, a fixing column is fixedly installed at the bottom end of the connecting plate and is located at the top end of the insulating umbrella skirt, a telescopic column is fixedly installed at the top end of the fixing column and penetrates through the connecting plate into the interior of the connecting column, a telescopic plate is fixedly installed at the top end of the telescopic column, a plurality of limiting blocks are fixedly installed on the outer wall of the telescopic plate, a reset spring is fixedly installed between the telescopic column and the reset spring and is sleeved on the outer wall of the telescopic column.

[0009] Preferably, an inclined surface is provided on the contact surface between the limiting ring and the connecting ring, a fillet is provided on the contact surface of the connecting ring, and a telescopic groove matching the connecting ring is provided in the interior of the mounting base.

[0010] Preferably, the top end of the shock-absorbing column is fixedly connected to the bottom end of a part of the fixing column, and a shock-absorbing groove matching the limiting plate is provided in the interior of the mounting base.

[0011] Preferably, the telescopic plate and the connecting plate are both made of rubber insulating material, a movable groove matching the telescopic plate is provided in the interior of the connecting column, and a limiting groove matching the limiting block is provided on the inner wall of the connecting column.

[0012] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0013] 1. When the mounting base on the connecting pipe body shakes, the limiting plate inside the mounting base squeezes the limiting spring to contract and move, so that the limiting spring absorbs and reduces the vibration of the mounting base. The movement of the limiting plate drives the shock-absorbing column to move, the movement of the shock-absorbing column drives the limiting ring to move, and the movement of the limiting ring pushes the connecting ring to squeeze the telescopic spring to contract and move. The limiting ring pushes the connecting ring to move, so that the limiting ring and the connecting ring mutually absorb the vibration force on the shock-absorbing column, thereby reducing the vibration of the shock-absorbing column, and the seismic resistance of the porcelain insulator can be improved.

[0014] 2. When the shock-absorbing column vibrates, it drives the fixing column to vibrate, the fixing column vibrates to drive the telescopic column to vibrate, and the telescopic column vibrates and shakes inside the connecting column, so that the telescopic column drives the telescopic plate to squeeze the reset spring to contract and move. The movement of the telescopic column drives the telescopic plate to move, the movement of the telescopic plate drives the limiting block to move, and the limiting block moves on the inner wall of the connecting column. The vibration of the telescopic column is reduced by friction. At the same time, the vibration of the telescopic column drives the connecting column to vibrate, and the vibration of the connecting column drives the insulating umbrella skirt to vibrate, thereby improving the seismic resistance of the porcelain insulator. At the same time, when the extrusion force of the reset spring on the telescopic plate is reduced, the reset spring resets and pushes the telescopic plate and the telescopic column to move. In this reciprocating process, the telescopic plate and the connecting plate contact the connecting column and the fixing column multiple times respectively. Through the soft rubber insulating material on the surfaces of the telescopic plate and the connecting plate, the mutual collision and damage of the insulating umbrella skirts due to vibration can be reduced. Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 It is a schematic cross-sectional structure diagram of the connecting column of the present utility model;

[0018] Figure 3 It is a schematic connection structure diagram of the connecting column and the fixed column of the present utility model;

[0019] Figure 4 It is a schematic cross-sectional structure diagram of the mounting base of the present utility model.

[0020] Description of the Reference Numerals:

[0021] 1. Connecting pipe main body; 2. Shock absorption mechanism; 201. Mounting base; 202. Shock absorption column; 203. Limiting plate; 204. Limiting spring; 205. Limiting ring; 206. Connecting ring; 207. Telescopic spring; 3. Insulating mechanism; 301. Connecting column; 302. Connecting plate; 303. Fixed column; 304. Telescopic column; 305. Telescopic plate; 306. Limiting block; 307. Reset spring; 308. Insulating umbrella skirt. Detailed Embodiment

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail in conjunction with the drawings.

[0023] The present utility model provides an electric porcelain insulator with an earthquake-resistant structure as Figures 1-4 shown, which includes a connecting pipe main body 1. A plurality of shock absorption mechanisms 2 are respectively installed and fixed at the top and bottom of the connecting pipe main body 1, and an insulating mechanism 3 is connected and fixed between the shock absorption mechanisms 2;

[0024] The shock absorption mechanism 2 includes a mounting base 201, the mounting base 201 is fixedly installed at the top of the connecting pipe body 1, a shock absorption column 202 is fixedly installed at the top of the mounting base 201 and penetrates into the interior of the mounting base 201. A limiting plate 203 is fixedly installed at the bottom end of the shock absorption column 202 and is located inside the mounting base 201. A limiting ring 205 is fixedly sleeved on the outer wall of the shock absorption column 202 and is located inside the mounting base 201. A limiting spring 204 is fixedly sleeved on the outer wall of the shock absorption column 202 and is located between the limiting ring 205 and the limiting plate 203. A plurality of connecting rings 206 are slidably sleeved on both sides of the outer wall of the limiting ring 205 and are located inside the mounting base 201. One side of the connecting ring 206 away from the limiting ring 205 is fixedly connected with a telescopic spring 207;

[0025] The insulation mechanism 3 includes a plurality of connecting columns 301. The plurality of connecting columns 301 are distributed between the mounting bases 201. An insulating umbrella skirt 308 is fixedly connected between the plurality of connecting columns 301. A connecting plate 302 is fixedly installed at the bottom end of the connecting column 301. A fixing column 303 is fixedly installed at the bottom end of the connecting plate 302 and is located at the top of the insulating umbrella skirt 308. A telescopic column 304 is fixedly installed at the top end of the fixing column 303 and penetrates through the connecting plate 302 into the interior of the connecting column 301. A telescopic plate 305 is fixedly installed at the top end of the telescopic column 304. A plurality of limiting blocks 306 are fixedly installed on the outer wall of the telescopic plate 305. A reset spring 307 is fixedly installed between the telescopic column 304 and the reset spring 307 and is sleeved on the outer wall of the telescopic column 304.

[0026] Refer to the attached Figures 1-4 of the specification. An inclined surface is provided on the contact surface between the limiting ring 205 and the connecting ring 206. A rounded corner is provided on the contact surface of the connecting ring 206. A telescopic groove matching the connecting ring 206 is opened inside the mounting base 201. Through the inclined surface of the limiting ring 205, it is convenient for the limiting ring 205 and the connecting ring 206 to contact and squeeze each other.

[0027] Refer to the attached Figures 1-4 of the specification. The top end of the shock absorption column 202 is fixedly connected with the bottom end of part of the fixing column 303. A shock absorption groove matching the limiting plate 203 is opened inside the mounting base 201. By fixedly connecting the shock absorption column 202 and the fixing column 303, it is convenient for the shock absorption column 202 to drive the fixing column 303 to resist shock after vibration.

[0028] Refer to the attached Figures 1-4 of the specification. The telescopic plate 305 and the connecting plate 302 are both made of rubber insulating material. An activity groove matching the telescopic plate 305 is provided inside the connecting column 301. A limiting groove matching the limiting block 306 is opened on the inner wall of the connecting column 301. Through the limiting groove opened on the inner wall of the connecting column 301, it is convenient for the limiting block 306 to frictionally absorb shock with the inner wall of the connecting column 301.

[0029] Working principle of this utility model:

[0030] Refer to the attached instruction manual Figures 1-4 , when the porcelain insulator shakes due to external factors, the mounting base 201 on the connecting pipe body 1 shakes, causing the limiting plate 203 inside the mounting base 201 to squeeze the limiting spring 204 to contract and move, so that the limiting spring 204 absorbs and reduces the vibration of the mounting base 201. The movement of the limiting plate 203 drives the shock-absorbing column 202 to move, and the movement of the shock-absorbing column 202 drives the limiting ring 205 to move. The movement of the limiting ring 205 pushes the connecting ring 206 to squeeze the telescopic spring 207 to contract and move. The limiting ring 205 pushes the connecting ring 206 to move, so that the limiting ring 205 and the connecting ring 206 mutually absorb the vibration force on the shock-absorbing column 202, thereby reducing the vibration of the shock-absorbing column 202, and the seismic resistance of the porcelain insulator can be improved;

[0031] Refer to the attached instruction manual Figures 1-4 , when the shock-absorbing column 202 vibrates, the vibration of the shock-absorbing column 202 drives the fixed column 303 to vibrate, and the vibration of the fixed column 303 drives the telescopic column 304 to vibrate. The telescopic column 304 vibrates and shakes inside the connecting column 301, causing the telescopic column 304 to drive the limited telescopic plate 305 to squeeze the return spring 307 to contract and move. The movement of the telescopic column 304 drives the telescopic plate 305 to move, and the movement of the telescopic plate 305 drives the limiting block 306 to move. The limiting block 306 moves on the inner wall of the connecting column 301, and reduces the vibration of the telescopic column 304 through friction. At the same time, the vibration of the telescopic column 304 drives the connecting column 301 to vibrate, and the vibration of the connecting column 301 drives the insulating umbrella skirt 308 to vibrate, thereby improving the seismic resistance of the porcelain insulator. At the same time, when the extrusion force of the return spring 307 on the telescopic plate 305 decreases, the return spring 307 resets and pushes the telescopic plate 305 and the telescopic column 304 to move. While reciprocating like this, the telescopic plate 305 and the connecting plate 302 contact the connecting column 301 and the fixed column 303 multiple times respectively. Through the soft rubber insulating materials on the surfaces of the telescopic plate 305 and the connecting plate 302, the mutual collision and damage of the insulating umbrella skirts 308 due to vibration can be reduced.

[0032] Only some exemplary embodiments of the present utility model are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims

1. An electric porcelain insulator with an earthquake-resistant structure, comprising a connecting tube body (1), characterized in that: A plurality of shock absorbing mechanisms (2) are respectively installed and fixed at the top and bottom ends of the connecting pipe body (1), and insulating mechanisms (3) are connected and fixed between the shock absorbing mechanisms (2); The shock absorbing mechanism (2) comprises a mounting base (201), wherein the mounting base (201) is mounted and fixed on the top end of the connecting pipe body (1); a shock absorbing column (202) is mounted and fixed on the top end of the mounting base (201) and penetrates into the interior of the mounting base (201); a limiting plate (203) is mounted and fixed on the bottom end of the shock absorbing column (202) and is located inside the mounting base (201); a limiting ring (205) is sleeved and fixed on the outer wall of the shock absorbing column (202) and is located inside the mounting base (201); a limiting spring (204) is sleeved and fixed on the outer wall of the shock absorbing column (202) and is located between the limiting ring (205) and the limiting plate (203); a plurality of connecting rings (206) are slidably sleeved on both sides of the outer wall of the limiting ring (205) and are located inside the mounting base (201); a telescopic spring (207) is connected and fixed on the side of the connecting ring (206) away from the limiting ring (205); The insulating mechanism (3) comprises a plurality of connecting columns (301), the plurality of connecting columns (301) being distributed between the mounting bases (201), an insulating shed (308) being connected and fixed between the plurality of connecting columns (301), a connecting plate (302) being fixedly mounted on the bottom end of the connecting column (301), a fixing column (303) being fixedly mounted on the bottom end of the connecting plate (302) and being located at the top end of the insulating shed (308), a telescopic column (304) being fixedly mounted on the top end of the fixing column (303) and penetrating the connecting plate (302) to the interior of the connecting column (301), a telescopic plate (305) being fixedly mounted on the top end of the telescopic column (304), a plurality of limit blocks (306) being fixedly mounted on the outer wall of the telescopic plate (305), and a reset spring (307) being fixedly mounted between the telescopic column (304) and the reset spring (307) and being sleeved on the outer wall of the telescopic column (304).

2. The electric porcelain insulator with earthquake-resistant structure according to claim 1, characterized in that: The contact surface between the limiting ring (205) and the connecting ring (206) is provided with an inclined surface, the contact surface of the connecting ring (206) is provided with a rounded corner, and a telescopic groove matching the connecting ring (206) is provided inside the mounting base (201).

3. The electric porcelain insulator with earthquake-resistant structure according to claim 1, characterized in that: The top end of the shock-absorbing column (202) is connected and fixed to the bottom end of a portion of the fixed column (303), and a shock-absorbing groove matching the limiting plate (203) is provided inside the mounting base (201).

4. The electric porcelain insulator with earthquake-resistant structure according to claim 1, characterized in that: The telescopic plate (305) and the connecting plate (302) are both made of rubber insulating material, a movable groove matching the telescopic plate (305) is provided inside the connecting column (301), and a limiting groove matching the limiting block (306) is provided on the inner wall of the connecting column (301).

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