Insulation mounting seat of metal oxide lightning arrester

Abstract

The utility model discloses an insulating mounting seat for a metal oxide lightning arrester, which belongs to the technical field of lightning arrester mounting and comprises an upper mounting plate fixedly mounted below the lightning arrester, and a lower mounting plate matched with the upper mounting plate is arranged below the upper mounting plate. The upper mounting plate and the lower mounting plate are connected together through a plurality of symmetrically distributed insulating mounting seats; the insulating mounting seat comprises an upper mounting seat arranged on the upper mounting plate and a lower mounting seat arranged on the lower mounting plate, and the upper mounting seat and the lower mounting seat are connected together through a bolt assembly; a boss is arranged at the position, connected with the upper installation base / the lower installation base, of the upper installation plate, and sealing strips are arranged between the boss and the upper installation base, between the lower installation base and the lower installation plate and between the boss and the lower installation base. The insulating mounting seat for the metal oxide lightning arrester is good in insulating performance, excellent in waterproof performance, firm and reliable in connection and capable of effectively guaranteeing normal operation of the lightning arrester.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lightning arrester installation technical field especially relates to a metal oxide lightning arrester insulation mounting seat. BACKGROUND

[0002] Metal oxide lightning arrester (MOA) is used for protecting the insulation of power transmission and transformation equipment from overvoltage hazards. It has the advantages of fast response, flat voltage-current characteristic, stable performance, large through-flow capacity, low residual voltage, long service life, simple structure, etc. and is widely used in power generation, power transmission, power transformation, power distribution and other systems. By using insulating materials on the mounting seat of the lightning arrester, overvoltage can be effectively limited to protect electrical equipment from damage. In addition, the lightning arrester and its connections should be well treated for waterproof to prevent moisture from entering and causing equipment damage or performance degradation. Improper waterproof treatment may cause internal components of the lightning arrester to break down, resulting in equipment damage. Based on this, the utility model provides a metal oxide lightning arrester insulation mounting seat. SUMMARY

[0003] The utility model aims at providing a metal oxide lightning arrester insulation mounting seat to solve the above-mentioned problems.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model relates to a metal oxide lightning arrester insulation mounting seat, which comprises an upper mounting plate fixedly installed below the lightning arrester, a lower mounting plate matched with the upper mounting plate, and a plurality of symmetrically distributed insulation mounting seats connecting the upper mounting plate and the lower mounting plate together.

[0006] The insulation mounting seat comprises an upper mounting seat arranged on the upper mounting plate and a lower mounting seat arranged on the lower mounting plate, and the upper mounting seat and the lower mounting seat are connected together through a bolt assembly. The upper mounting plate is provided with a boss at the position connected with the upper mounting seat / lower mounting seat, and a sealing strip is arranged between the boss and the upper mounting seat, between the lower mounting seat and the lower mounting plate, and between the boss and the lower mounting seat.

[0007] Further, the bolt assembly comprises a nut, the nut is located at the bottom of the lower mounting plate, the nut is provided with a clamping tooth, the bottom end of the lower mounting plate is provided with a tooth base matched with the clamping tooth; the upper end of the nut is integrally formed with a bolt, the bolt sequentially penetrates through the lower mounting plate, the lower mounting base, the upper mounting plate and the upper mounting base and is connected with a nut, the nut comprises a nut body, the nut body is located at one side of the upper mounting base and is provided with a sealing groove, and a sealing assembly is arranged in the sealing groove; the end of the bolt penetrating out of the nut is provided with a rainproof cap, and the rainproof cap comprises a rainproof cap body, the inside of the rainproof cap body is a cavity structure, a protruding block is arranged at the top of the cavity, and the protruding block can be clamped in the groove at the top of the bolt.

[0008] Further, a plurality of anti-loosening grooves are formed in the outer side wall of the nut body, a plurality of clamping grooves matched with the anti-loosening grooves are formed in the top outer side wall of the upper mounting base, and an anti-loosening strip is arranged at the bottom of the rainproof cap body and inserted into the anti-loosening grooves and the clamping grooves.

[0009] Further, the maximum outer diameters of the upper mounting base and the lower mounting base are consistent.

[0010] Further, the upper mounting base is in T-shaped structure, and a cylindrical groove structure matched with the bottom of the upper mounting base is formed in the upper end face of the lower mounting base.

[0011] Further, the upper mounting base and the lower mounting base are made of insulating material.

[0012] Further, a center hole for the bolt to penetrate through is formed in the center position of the upper mounting base and the lower mounting base.

[0013] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0014] The metal oxide lightning arrester insulating mounting seat can effectively prevent current from being conducted to the lightning arrester through the support structure when lightning overvoltage occurs, thereby affecting the normal work of the lightning arrester, that is, the good insulation performance can ensure the stable operation of the lightning arrester in lightning weather, and the safety and reliability of the power system are improved. In addition, the installation of the sealing strip can effectively prevent moisture from entering and avoid equipment damage or performance degradation. The anti-loosening grooves of the nut on the bolt assembly cooperate with the clamping grooves on the upper mounting base and the anti-loosening strips on the rainproof cap, so that the nut avoids loosening or falling off, ensures that all connections are firm and reliable, and avoids signal loss and interference. In summary, the metal oxide lightning arrester insulating mounting seat has good insulation performance, good waterproof performance, firm and reliable connection and effectively guarantees the normal operation of the lightning arrester. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model discloses make further explanation to the utility model below combining the drawing.

[0016] Figure 1 It is the front view of metal oxide lightning arrester insulating mounting seat of the utility model;

[0017] Figure 2 It is the schematic diagram of nut structure;

[0018] Figure 3 It is the schematic diagram of nut embodiment one structure;

[0019] Figure 4 It is the schematic diagram of nut embodiment two structure;

[0020] Figure 5 It is the close-up of A;

[0021] Mark explanation: 1, lightning arrester;2, upper mounting plate;3, lower mounting plate;4, upper mounting seat;5, lower mounting seat;6, bolt assembly;7, rainproof cap;8, sealing strip;

[0022] 201, boss;

[0023] 301, tooth table;

[0024] 401, clamping groove;

[0025] 601, nut;602, clamping tooth;603, bolt;604, nut body;605, sealing groove;606, anti-loosening groove;

[0026] 701, rainproof cap body;702, protruding block;703, cavity;704, anti-loosening strip. Specific implementation

[0027] Embodiment one

[0028] As Figures 1-5 The utility model discloses make further explanation to the utility model below combining the drawing.

[0029] The insulating mounting base comprises an upper mounting base 4 mounted on the upper mounting plate 2 and a lower mounting base 5 mounted on the lower mounting plate 3, and the upper mounting base 4 and the lower mounting base 5 are connected together through a bolt assembly 6. A boss 201 is mounted on the upper mounting plate 2 at a position where the upper mounting base 4 / lower mounting base 5 is connected. A sealing strip 8 is mounted between the boss 201 and the upper mounting base 4, between the lower mounting base 5 and the lower mounting plate 3, and between the boss 201 and the lower mounting base 5. The boss 201 can prevent water from penetrating the bolt assembly 6 and corroding the bolt assembly 6, and the sealing strip 8 can effectively prevent moisture from entering and avoid damage to the equipment or degradation of performance. The maximum outer diameter of the upper mounting base 4 and the lower mounting base 5 is consistent. In addition, the upper mounting base 4 has a T-shaped structure, and a cylindrical groove structure matching the bottom of the upper mounting base 4 is formed on the upper end surface of the lower mounting base 5, so that the two can be quickly installed. The upper mounting base 4 and the lower mounting base 5 are both made of insulating material.

[0030] The bolt assembly 6 comprises a nut 601 located at the bottom of the lower mounting plate 3, and a clamping tooth 602 is mounted on the nut 601. The bottom end of the lower mounting plate 3 is provided with a toothed table 301 matched with the clamping tooth 602. During installation, the clamping tooth 602 is clamped on the toothed table 301, which can prevent the bolt assembly 6 from rotating, facilitate installation, and improve the efficiency of installation. The upper end of the nut 601 is integrally formed with a bolt 603, and the bolt 603 passes through the lower mounting plate 3, the lower mounting base 5, the upper mounting plate 2 and the upper mounting base 4 in sequence and is connected with a nut.

[0031] A center hole is formed in the center position of the upper mounting base 4 and the lower mounting base 5 for the bolt 603 to pass through.

[0032] The nut comprises a nut body 604, and a sealing groove 605 is formed on one side of the nut body 604. A sealing assembly is mounted in the sealing groove 605. A rainproof cap 7 is mounted on the end of the bolt 603 protruding from the nut. The rainproof cap 7 comprises a rainproof cap body 701, which has a conical structure to prevent rainwater from flowing back and corroding the bolt 603. In addition, a larger rainproof cap body 701 can be selected according to whether the nut needs to be protected, and the specific situation can be selected according to the actual situation. The inside of the rainproof cap body 701 is a hollow cavity 703 structure, and a protruding block 702 is mounted on the top of the hollow cavity 703. The protruding block 702 can be clamped in the groove on the top of the bolt 603. By inserting the protruding block 702 into the groove, quick disassembly and convenient installation can be achieved. The rainproof cap 7 has a mushroom shape, which can protect the bolt 603.

[0033] Embodiment two

[0034] On the basis of embodiment one, the anti-loosening structure is added to avoid the loosening or falling off of the nut, so as to ensure the firmness and reliability of all connections, and avoid signal loss and interference.

[0035] Specifically, the outer side wall of the nut body 604 is provided with a plurality of anti-loosening grooves 606, the top outer side wall of the upper mounting seat 4 is provided with a plurality of clamping grooves 401 matched with the anti-loosening grooves 606, and the bottom of the rainproof cap body 701 is provided with an anti-loosening strip 704 inserted into the anti-loosening grooves 606 and the clamping grooves 401. When the rainproof cap 7 is inserted into the top of the bolt 603, the anti-loosening strip 704 is inserted into the anti-loosening grooves 606 and the clamping grooves 401, so that the nut is prevented from rotating easily, and the stability of the connection is avoided.

[0036] The action process of the utility model is as follows:

[0037] Firstly, the upper mounting seat 4 is installed on the upper mounting plate 2, and the sealing strip 8 is placed during installation; then, the lower mounting seat 5 is installed in the lower mounting plate 3, and the sealing strip 8 is placed; then, the upper and lower mounting seats are inserted together, and the sealing strip 8 is placed on the end face of the insertion; finally, the upper and lower mounting seats are connected together through the bolt assembly 6, and the rainproof cap 7 is clamped on the top of the bolt 603.

[0038] The above-described embodiments only describe the preferred modes of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit of the utility model, various deformations and improvements of the technical solutions of the utility model made by ordinary skilled in the art should fall within the protection scope determined by the claims of the utility model.

Claims

1. An insulating mounting base for a metal oxide surge arrester, characterized in that: It includes an upper mounting plate (2) fixedly installed below the surge arrester (1), and a lower mounting plate (3) that cooperates with the upper mounting plate (2) is provided below the upper mounting plate (2). The upper mounting plate (2) and the lower mounting plate (3) are connected together by a number of symmetrically distributed insulating mounting seats. The insulating mounting base includes an upper mounting base (4) disposed on the upper mounting plate (2) and a lower mounting base (5) disposed on the lower mounting plate (3). The upper mounting base (4) and the lower mounting base (5) are connected together by a bolt assembly (6). A boss (201) is provided on the upper mounting plate (2) at the position where it connects with the upper mounting base (4) / lower mounting base (5). A sealing strip (8) is provided between the boss (201) and the upper mounting base (4), between the lower mounting base (5) and the lower mounting plate (3), and between the boss (201) and the lower mounting base (5). The bolt assembly (6) includes a nut (601) located at the bottom of the lower mounting plate (3). The nut (601) has a retaining tooth (602), and the bottom end of the lower mounting plate (3) has a toothed platform (301) that mates with the retaining tooth (602). A bolt (603) is integrally formed on the upper end of the nut (601). The bolt (603) passes through the lower mounting plate (3), the lower mounting base (5), the upper mounting plate (2), and the upper mounting base (4) in sequence and is connected to a nut. The nut includes a nut body. (604), the nut body (604) is provided with a sealing groove (605) on one side of the upper mounting base (4), and a sealing component is provided in the sealing groove (605); the end of the bolt (603) that protrudes from the nut is provided with a rain cap (7), the rain cap (7) includes a rain cap body (701), the interior of the rain cap body (701) is a cavity (703) structure, the top of the cavity (703) is provided with a protrusion (702), and the protrusion (702) can be snapped into the groove on the top of the bolt (603); The outer side wall of the nut body (604) is provided with a plurality of anti-loosening grooves (606), the top outer side wall of the upper mounting base (4) is provided with a plurality of slots (401) that cooperate with the anti-loosening grooves (606), and the bottom of the rain cap body (701) is provided with an anti-loosening strip (704) that is inserted into the anti-loosening grooves (606) and slots (401). The maximum outer diameter of the upper mounting base (4) and the lower mounting base (5) is the same; The upper mounting base (4) has a T-shaped structure, and the upper end face of the lower mounting base (5) is provided with a cylindrical groove structure that matches the bottom of the upper mounting base (4); Both the upper mounting base (4) and the lower mounting base (5) are made of insulating material; The upper mounting base (4) and the lower mounting base (5) have a central hole at their center positions for the bolt (603) to pass through.

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