Anti-spalling electric porcelain insulator

Abstract

The utility model relates to the field of electric porcelain insulators, in particular to an anti-spalling electric porcelain insulator, which comprises an electromagnetic insulator main body, a main body used for assisting circuit operation, a large umbrella cover and a small umbrella cover arranged outside the electromagnetic insulator main body and used for providing a creepage distance and protecting the electromagnetic insulator main body, and the small umbrella cover is arranged below the large umbrella cover. The electric porcelain insulator is provided with the electromagnetic insulator main body, the heat dissipation protection layer, the first insulation ring, the first anti-expansion rod, the upper limiting insulation sleeve and the heat dissipation fins, so that when the electric porcelain insulator is used, the upper limiting insulation sleeve and the lower limiting insulation sleeve can be sleeved outside the large umbrella sleeve and the small umbrella sleeve through the fastening bolt and the fixing bolt; the upper limiting insulation sleeve and the lower limiting insulation sleeve can limit the large umbrella sleeve and the small umbrella sleeve and control the expansion space of the large umbrella sleeve and the small umbrella sleeve, so that the situation that the normal use of the electric porcelain insulator is affected due to expansion cracks of the large umbrella sleeve and the small umbrella sleeve caused by alternate cooling and heating of the electric porcelain insulator due to environmental factors is avoided.

Description

Technical Field

[0001] The utility model relates to the field of electric porcelain insulators, in particular to an anti-expansion and cracking electric porcelain insulator. Background Art

[0002] Porcelain insulators are an electrical insulating material made of ceramic material. Their function is to isolate high-voltage equipment and transmission lines from the ground to prevent current from leaking to the ground. The main function of porcelain insulators is to isolate the current between high-voltage equipment and transmission lines and the ground. In high-voltage equipment and transmission lines, the voltage is very high. If there are no proper insulation measures, the current will leak from the equipment or line to the ground, causing serious consequences such as electric shock accidents and fire. Porcelain insulators can withstand high voltage and high temperature, are not easy to crack and age, and have good insulation performance and durability. By using porcelain insulators, the safe and stable operation of the power system can be ensured.

[0003] The invention relates to a porcelain insulator which is easy to disassemble and assemble, and the invention discloses a porcelain insulator which is easy to disassemble and assemble, comprising a coaxially arranged insulating tube, a terminal block and a steel foot bolt. The outer periphery of the insulating tube is coaxially fixed with a plurality of umbrella skirts along its axial direction. The terminal block is fixedly mounted on the upper end face of the insulating tube. A wire clamp is fixedly mounted on the upper end face of the terminal block. The steel foot bolt is arranged below the insulating tube but the two are not in direct contact. A nut is movably threaded on the steel foot bolt. A hinge seat is cast on the upper end face of the steel foot bolt. A "spherical" groove and a positioning groove are provided on the upper end face of the hinge seat. The positioning groove is in the shape of a "circular ring". The "spherical" groove is located at the center of the positioning groove. A hinge ball is movably embedded in the "spherical" groove. The top of the hinge ball is welded to the lower end face of the insulating tube. The porcelain insulator which is easy to disassemble and assemble is convenient and labor-saving to disassemble and assemble, and has high safety.

[0004] During use, existing porcelain insulators are subject to structural and strength deficiencies, and when the temperature of the installation environment changes, the iron parts in the porcelain insulators expand and contract, which can easily cause the umbrella cover to crack, resulting in damage to the porcelain insulator and thus reducing the life of the porcelain insulator. In addition, the porcelain insulators in the above-mentioned comparative case also lack anti-cracking measures. As a result, the long-term use of the porcelain insulator not only shortens its service life, but also requires frequent maintenance by power personnel if cracking occurs, delaying its use.

[0005] Therefore, it is necessary to invent a kind of anti-expansion and cracking electric porcelain insulator to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an anti-expansion and cracking electric porcelain insulator, which controls its expansion space through the electromagnetic insulator body, the heat dissipation protective layer, the first insulating ring, the first anti-expansion rod, the upper limiting insulating sleeve and the heat dissipation fins, so as to prevent the electric porcelain insulator from having cracks in the large umbrella sleeve and the small umbrella sleeve due to the alternating hot and cold environment, thereby affecting the normal use of the electric porcelain insulator. At the same time, the heat dissipation protective layer is pasted on the surface of the large umbrella sleeve, and the heat dissipation fins on the first anti-expansion rod make the electric porcelain insulator have good heat dissipation capacity, further reducing the probability of the electric porcelain insulator cracking due to thermal expansion, so that the electric porcelain insulator has anti-expansion performance. The invention has the effect of extending the service life of the insulator without delaying the service life, so as to solve the problem that the insulator in the prior art has the problem that, due to the lack of structural properties and strength of the insulator in the prior art, the iron parts in the insulator expand and contract due to temperature changes in the installation environment, which easily causes the umbrella cover to crack, resulting in damage to the insulator and thus reducing the service life of the insulator. In addition, the insulator in the comparative case lacks the means to prevent cracking. In this way, the service life of the insulator is shortened under long-term use, and if cracking occurs, it requires frequent repairs by power personnel, which delays the service life.

[0007] In order to achieve the above-mentioned object, the present utility model provides the following technical solutions: an anti-expansion and cracking electric porcelain insulator, comprising an electromagnetic insulator body, a body for assisting the operation of a circuit;

[0008] A large umbrella cover is provided on the outside of the electromagnetic insulator body to provide creepage distance and protect the electromagnetic insulator body, and a small umbrella cover is provided below the large umbrella cover, and a heat dissipation protection layer is pasted on the surface of the large umbrella cover;

[0009] A fastening bolt passes through the outside of the electromagnetic insulator body and is used to connect and install the first insulating ring, and a first anti-expansion rod is fixedly installed on the outside of the first insulating ring, one end of the first anti-expansion rod is fixedly installed with an upper limiting insulating sleeve, and a fixing bolt passes through the upper part of the upper limiting insulating sleeve, and one end of the fixing bolt is movably connected to the lower limiting insulating sleeve;

[0010] The second anti-expansion rod is arranged outside the lower limiting insulating sleeve to prevent the large umbrella sleeve from bursting, and a second insulating ring is fixedly installed on one end of the second anti-expansion rod. The outside of the first anti-expansion rod is provided with heat dissipation fins.

[0011] Preferably, an end connection column is fixedly installed on the upper part of the electromagnetic insulator body, and a mounting base is fixedly installed on the bottom part of the electromagnetic insulator body.

[0012] Preferably, an adjustment groove is provided on the surface of the mounting base, a tightening plate is provided above the adjustment groove, and a positioning bolt passes through the top of the tightening plate.

[0013] Preferably, the heat dissipation protection layer is tightly fitted to the large umbrella cover, and the material of the heat dissipation protection layer is: aluminum oxide.

[0014] Preferably, the first insulating ring is threadedly connected to the electromagnetic insulator body, and the upper limiting insulating sleeve is movably connected to the lower limiting insulating sleeve.

[0015] Preferably, the number of the heat dissipation fins is set to be multiple, and the multiple heat dissipation fins are distributed on the first anti-expansion rod at equal intervals.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] 1. The utility model is provided with an electromagnetic insulator main body, a heat dissipation protective layer, a first insulating ring, a first anti-expansion rod, an upper limiting insulating sleeve and a heat dissipation fin. When the electric porcelain insulator is used, an upper limiting insulating sleeve and a lower limiting insulating sleeve can be set on the outside of the large umbrella sleeve and the small umbrella sleeve by fastening bolts and fixing bolts. The upper limiting insulating sleeve and the lower limiting insulating sleeve can limit the large umbrella sleeve and the small umbrella sleeve, control their expansion space, and prevent the electric porcelain insulator from causing cracks in the large umbrella sleeve and the small umbrella sleeve due to alternating hot and cold environmental factors, thereby affecting the normal use of the electric porcelain insulator. At the same time, the heat dissipation protective layer is adhered to the surface of the large umbrella sleeve, and the heat dissipation fins on the first anti-expansion rod enable the electric porcelain insulator to have good heat dissipation ability, further reduce the probability of the electric porcelain insulator cracking due to thermal expansion, and enable the electric porcelain insulator to have the ability to prevent cracking, thereby extending its service life without delaying its use time.

[0018] 2. The utility model is provided with an electromagnetic insulator main body, a large umbrella cover, a small umbrella cover, an end connecting column, a mounting base, an adjustment slot, a tightening plate and a positioning bolt. Since different high-voltage equipment porcelain insulators are faced with different installation environments, the positions of the tightening plate and the positioning bolt can be freely adjusted through the adjustment slot on the mounting base, so that the device can be docked and installed with high-voltage equipment in different environments, thereby expanding the overall scope of use of the device. Moreover, the simple structure of the mounting base not only facilitates the quick installation of the porcelain insulator, but also reduces the maintenance difficulty of maintenance personnel when a fault occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2This is a schematic diagram of the mounting base structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the heat dissipation protection layer structure of the present utility model;

[0023] Figure 4 This is a schematic diagram of the upper limiting insulating sleeve structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the heat dissipation fin structure of the present utility model.

[0025] Description of reference numerals:

[0026] 1. Electromagnetic insulator body; 2. Large umbrella cover; 3. Small umbrella cover; 4. Terminal connection column; 5. Mounting base; 6. Adjustment slot; 7. Clamping plate; 8. Positioning bolt; 9. Heat dissipation protection layer; 10. Fastening bolt; 11. First insulating ring; 12. First anti-expansion rod; 13. Upper limiting insulating sleeve; 14. Fixing bolt; 15. Lower limiting insulating sleeve; 16. Second anti-expansion rod; 17. Second insulating ring; 18. Heat dissipation fins. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] The utility model provides Figure 1-5 The anti-expansion and cracking electric porcelain insulator shown includes an electromagnetic insulator body 1, which is used as a main body for auxiliary circuit operation;

[0029] The large umbrella cover 2 is arranged outside the electromagnetic insulator body 1 to provide creepage distance and protect the electromagnetic insulator body 1. A small umbrella cover 3 is arranged below the large umbrella cover 2. A heat dissipation protection layer 9 is adhered to the surface of the large umbrella cover 2.

[0030] A fastening bolt 10 passes through the exterior of the electromagnetic insulator body 1 and is used to connect and install a first insulating ring 11. A first anti-expansion rod 12 is fixedly installed on the exterior of the first insulating ring 11. An upper limiting insulating sleeve 13 is fixedly installed at one end of the first anti-expansion rod 12. A fixing bolt 14 passes through the upper portion of the upper limiting insulating sleeve 13. One end of the fixing bolt 14 is movably connected to a lower limiting insulating sleeve 15.

[0031] The second anti-expansion rod 16 is arranged on the outside of the lower limiting insulating sleeve 15 to prevent the large umbrella sleeve 2 from expanding and cracking, and a second insulating ring 17 is fixedly installed on one end of the second anti-expansion rod 16. The outside of the first anti-expansion rod 12 is provided with heat dissipation fins 18. The surface of the large umbrella sleeve 2 is pasted with a heat dissipation protective layer 9 and the heat dissipation fins 18 on the first anti-expansion rod 12, so that the electric porcelain insulator has good heat dissipation ability, further reducing the probability of the electric porcelain insulator expanding and cracking due to thermal expansion, so that the electric porcelain insulator has the ability to prevent expansion and cracking, and extends its service life without delaying its use time.

[0032] like Figure 1 、 Figure 2 and Figure 3 As shown, an end connection column 4 is fixedly installed on the top of the electromagnetic insulator body 1, and a mounting base 5 is fixedly installed on the bottom of the electromagnetic insulator body 1. The end connection column 4 assists the device in connecting and installing with the circuit of the high-voltage equipment. An adjustment groove 6 is provided on the surface of the mounting base 5, and a tightening plate 7 is provided above the adjustment groove 6. A positioning bolt 8 is passed through the top of the tightening plate 7. The positions of the tightening plate 7 and the positioning bolt 8 can be freely adjusted through the adjustment groove 6 on the mounting base 5, so that the device can be docked and installed with high-voltage equipment in different environments. The heat dissipation protective layer 9 fits tightly with the large umbrella cover 2. The material of the heat dissipation protective layer 9 is: aluminum oxide. The heat dissipation protective layer 9 is pasted on the surface of the large umbrella cover 2 and combined with the heat dissipation fins 18 on the first anti-expansion rod 12, the electric porcelain insulator has good heat dissipation capacity.

[0033] like Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, the first insulating ring 11 is threadedly connected to the electromagnetic insulator body 1, and the upper limiting insulating sleeve 13 is movably connected to the lower limiting insulating sleeve 15. The first insulating ring 11 is convenient for fixing the positions of the upper limiting insulating sleeve 13 and the lower limiting insulating sleeve 15, so that the upper limiting insulating sleeve 13 and the lower limiting insulating sleeve 15 are firmly sleeved on the outside of the large umbrella cover 2 for limiting. The number of heat dissipation fins 18 is set to multiple, and the multiple heat dissipation fins 18 are evenly spaced on the first anti-expansion rod 12. The large number of heat dissipation fins 18 can effectively transfer the heat from the large umbrella cover 2 to quickly dissipate heat, thereby reducing the probability of heat accumulation causing expansion of the porcelain insulator.

[0034] The working principle of the utility model is as follows: first, when the electric porcelain insulator is installed on the high-voltage equipment, the position of the tightening plate 7 and the positioning bolt 8 can be freely adjusted through the adjustment slot 6 on the installation base 5, so that the device can be docked and installed with the high-voltage equipment in different environments. Then, after the end connecting column 4 is connected to the circuit of the high-voltage equipment, the upper limiting insulating sleeve 13 and the lower limiting insulating sleeve 15 can be set on the outside of the large umbrella sleeve 2 and the small umbrella sleeve 3 through the fastening bolt 10 and the fixing bolt 14. The upper limiting insulating sleeve 13 and the lower limiting insulating sleeve 15 can limit the large umbrella sleeve 2 and the small umbrella sleeve 3, control their expansion space, and avoid the electric porcelain insulator from causing cracks in the large umbrella sleeve 2 and the small umbrella sleeve 3 due to alternating hot and cold environmental factors. This affects the normal use of the electric porcelain insulator. Then, a heat dissipation protective layer 9 is pasted on the surface of the large umbrella cover 2, and the heat dissipation fins 18 on the first anti-expansion rod 12 are used to give the electric porcelain insulator a good heat dissipation ability, further reducing the probability of the electric porcelain insulator cracking due to thermal expansion, so that the electric porcelain insulator has the ability to prevent cracking. In this way, after the installation preparation work of the electric porcelain insulator is completed, the high-voltage equipment can be started normally, allowing the electric porcelain insulator to work normally. Finally, after completing the installation and use of all the electric porcelain insulators according to the above operations, the device can be maintained daily. The material of the heat dissipation protective layer 9 is: alumina, and the use process of the anti-expansion and cracking electric porcelain insulator is completed.

[0035] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An anti-cracking porcelain insulator, characterized by: include An electromagnetic insulator body (1), a body for assisting the operation of a circuit; A large umbrella cover (2) is arranged outside the electromagnetic insulator body (1) and is used to provide a creepage distance and protect the electromagnetic insulator body (1), and a small umbrella cover (3) is arranged below the large umbrella cover (2), and a heat dissipation protection layer (9) is adhered to the surface of the large umbrella cover (2); A fastening bolt (10) passes through the outside of the electromagnetic insulator body (1) and is used to connect and install the first insulating ring (11), and a first anti-expansion rod (12) is fixedly installed on the outside of the first insulating ring (11), an upper limiting insulating sleeve (13) is fixedly installed on one end of the first anti-expansion rod (12), a fixing bolt (14) passes through the upper part of the upper limiting insulating sleeve (13), and one end of the fixing bolt (14) is movably connected to the lower limiting insulating sleeve (15); A second anti-expansion rod (16) is arranged outside the lower limiting insulating sleeve (15) to prevent the large umbrella sleeve (2) from bursting, and a second insulating ring (17) is fixedly mounted on one end of the second anti-expansion rod (16). A heat dissipation fin (18) is arranged outside the first anti-expansion rod (12).

2. The anti-cracking porcelain insulator according to claim 1, characterized in that: An end connection column (4) is fixedly mounted on the upper side of the electromagnetic insulator body (1), and a mounting base (5) is fixedly mounted on the bottom side of the electromagnetic insulator body (1).

3. The anti-cracking porcelain insulator according to claim 2, characterized in that: An adjustment groove (6) is provided on the surface of the mounting base (5), a tightening plate (7) is provided above the adjustment groove (6), and a positioning bolt (8) passes through the top of the tightening plate (7).

4. The anti-cracking porcelain insulator according to claim 1, characterized in that: The heat dissipation protection layer (9) is tightly fitted to the large umbrella cover (2), and the material of the heat dissipation protection layer (9) is aluminum oxide.

5. The anti-cracking porcelain insulator according to claim 1, characterized in that: The first insulating ring (11) is threadedly connected to the electromagnetic insulator body (1), and the upper limiting insulating sleeve (13) is movably connected to the lower limiting insulating sleeve (15).

6. The anti-expansion cracking porcelain insulator according to claim 1, characterized in that: The number of the heat dissipation fins (18) is set to be multiple, and the multiple heat dissipation fins (18) are distributed at equal intervals on the first anti-expansion rod (12).

Images