CN210575299U

CN210575299U - Hard lightning arrester with double insulation layers and bird damage prevention structure safety cover

Info

Publication number: CN210575299U
Application number: CN201921817023.6U
Authority: CN
Inventors: 刘进生; 刘建宁; 刘家旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-05-19
Anticipated expiration: 2029-10-25

Abstract

A hard lightning arrester with double insulating layers and a bird damage prevention structure safety cover comprises a zinc oxide lightning arrester main body, wherein the zinc oxide lightning arrester main body consists of an insulating tube and a plurality of waterproof discs connected to the insulating tube, metal screw rods and fixing nuts are arranged at two ends of the insulating tube, and power line terminals are fixed on the metal screw rods at the top ends; the hole of the insulating tube is internally provided with a lightning protection element, and the lightning protection tube is characterized in that the waterproof disc and a layer on the periphery of the insulating tube are made of hard insulating materials; a rubber layer is arranged between the periphery of the insulating tube and the hard insulating material layer; the top end of the zinc oxide arrester main body, the metal screw and the power line terminal are all installed in an insulated safety cover. The utility model has the advantages that: the waterproof plate and the outermost layer of the insulating rod are made of hard insulating materials, so that bird damage is effectively prevented; and a rubber layer is arranged between the periphery of the insulating rod and the hard insulating material layer, so that the insulating property is ensured. The sharp top of the safety cover prevents harmful birds from falling feet and building bird nests.

Description

Hard lightning arrester with double insulation layers and bird damage prevention structure safety cover

Technical Field

The utility model relates to a stereoplasm arrester with double insulation layer and bird damage structure safety guard of preventing for the lightning-arrest in the power transmission and transformation circuit.

Background

The zinc oxide lightning arrester in the prior art is composed of an insulating tube and a plurality of waterproof discs connected to the insulating tube, metal screw rods and fixing nuts are arranged at two ends of the insulating tube, and power line terminals are fixed on the metal screw rods at the top ends. The waterproof disk (including a layer around the periphery of the insulating tube) is generally made of rubber; the lightning protection element is arranged in the hole of the insulating tube. The disadvantage is that the waterproof disc made of rubber is easy to be damaged by birds (pecked by birds) and loses the function of rain-proof; if only hard insulating materials are adopted, the insulating property cannot meet the requirement. The metal screw rod with the exposed top end and the power line terminal are corroded by rain and snow for a long time, so that the connecting part is easily corroded and damaged; the exposed joint is easy to leak electricity, and potential safety hazards exist.

Disclosure of Invention

The utility model aims at providing a hard lightning arrester with double insulating layers and a bird damage prevention structure safety cover, so as to solve the problem that the prior art is easy to suffer from bird damage and lose the rainproof function; the metal screw rod with the exposed top end and the power line terminal are corroded by rain and snow for a long time.

The technical scheme of the utility model is that: a hard lightning arrester with double insulating layers and a bird damage prevention structure safety cover comprises a zinc oxide lightning arrester main body, wherein the zinc oxide lightning arrester main body consists of an insulating tube and a plurality of waterproof discs connected to the insulating tube, metal screw rods and fixing nuts are arranged at two ends of the insulating tube, and power line terminals are fixed on the metal screw rods at the top ends; the hole of the insulating tube is internally provided with a lightning protection element, and the lightning protection tube is characterized in that the waterproof disc and a layer on the periphery of the insulating tube are made of hard insulating materials; a rubber layer is arranged between the periphery of the insulating tube and the hard insulating material layer; the top end of the zinc oxide arrester main body, the metal screw and the power line terminal are all installed in an insulated safety cover.

The utility model has the advantages that: the waterproof plate and the outermost layer of the insulating tube are made of hard insulating materials, so that bird damage is effectively prevented; and a rubber layer is arranged between the periphery of the insulating tube and the hard insulating material layer, so that the insulating property is ensured. The metal part at the top end is sealed in an insulated safety cover, so that long-time erosion of external rain and snow on the connection part is avoided, the possibility of electric leakage of the exposed connection part is effectively eliminated, and long-term safe operation of the power line is ensured; the bird damage prevention structure with the herringbone sharp top of the safety cover prevents harmful birds from falling feet and building bird nests.

Drawings

FIG. 1 is an axial cross-sectional view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall appearance of the present invention;

fig. 3 is a schematic side view of the whole of an embodiment of the present invention;

FIG. 4 is a schematic view of the safety shield of FIG. 3 with the safety shield removed;

FIG. 5 is a top view of FIG. 3;

FIG. 6 is a top view of FIG. 4;

fig. 7 is a schematic side view of the whole safety cover of the present invention;

FIG. 8 is a schematic view of the structure of most of FIG. 7;

FIG. 9 is a schematic view of the configuration of the small portion of FIG. 7;

fig. 10 is a schematic side view of another embodiment of the present invention;

FIG. 11 is a top view of FIG. 10;

fig. 12 is a schematic view of the structure of the small portion of the safety shield of fig. 10.

Detailed Description

Referring to fig. 1 to 9, an embodiment of a zinc oxide arrester with bird damage prevention structure safety cover of the present invention includes a zinc oxide arrester main body 8, the zinc oxide arrester main body 8 is composed of an insulating tube (tubular) 81 and a plurality of waterproof disks 82 connected to the insulating tube 81, a metal screw 3 and a fixing nut 2 are disposed at the axes of metal ends 87 at both ends of the insulating tube 81, and a power line terminal 5 is fixed on the metal screw 3 at the top end; the insulating tube 81 has a plurality of lightning protection elements in its bore, the lightning protection elements include a plurality of lightning protection plates 84 stacked in series, and the number of the lightning protection plates 84 can be selected according to the requirement of voltage resistance. In order to increase the withstand voltage, an insulating tube 86 may be connected in series with the lightning rod 84, the insulating tube 86 may be provided between the lightning rod 84 and the bottom end of the insulating tube 81, a discharge piece 85 may be provided between the top end of the insulating tube 86 and the lightning rod 84, and a downward tip may be provided at the center of the discharge piece 85. The above is the prior art.

The waterproof structure is characterized in that a layer of the periphery of the waterproof disc 82 and the insulating pipe 81 is made of hard insulating materials; a rubber layer 83 is arranged between the periphery of the insulating tube 81 and the hard insulating layer (namely the waterproof disk 82 and a layer of hard insulating material on the periphery of the insulating tube 81); the top end of the zinc oxide arrester main body 8, the metal screw rod 3 and the power line terminal 5 are all installed in an insulated safety cover 4. The hard insulating material comprises: thermosetting resins, thermoplastic resins or engineering plastics.

The safety cover 4 is formed by oppositely buckling a large part 41 and a small part 42 into a reversed L-shaped box body which can accommodate the top end of the zinc oxide arrester main body 8, the metal screw 3 and the large part of the power line terminal 5; a protruding cylinder (for sleeving a rubber sealing sleeve 6 in use) is arranged at the front end of the inverted L-shaped box body and is used for penetrating through the power line terminal 5 and the power line; connecting edges 44 are provided at the lateral edges of the large portion 41 and the small portion 42, and mounting holes corresponding to each other are provided in the connecting edges 44, through which the two portions are connected together by bolts 7. The improvement part of safety cover is: a herringbone tip 43 is arranged at the top end of the large part 41, so that the harmful bird is prevented from falling on the feet and nesting.

The safety cover 1 is made of transparent or opaque plastics.

Referring to fig. 10-12, the difference between this embodiment and the previous embodiment is that the lower end of the safety cover 4 is provided with an extension box 46 capable of accommodating a waterproof disk 82 on the top of the zinc oxide arrester main body 8, the lower left side of the extension box (the large portion 41) is open, and the lower portion of the small portion 42 is also provided with a corresponding portion 47 abutting the open left side of the lower portion of the large portion 41.

Claims

1. A hard lightning arrester with double insulating layers and a bird damage prevention structure safety cover comprises a zinc oxide lightning arrester main body, wherein the zinc oxide lightning arrester main body consists of an insulating tube and a plurality of waterproof discs connected to the insulating tube, metal screw rods and fixing nuts are arranged at two ends of the insulating tube, and power line terminals are fixed on the metal screw rods at the top ends; the hole of the insulating tube is internally provided with a lightning protection element, and the lightning protection tube is characterized in that the waterproof disc and a layer on the periphery of the insulating tube are made of hard insulating materials; a rubber layer is arranged between the periphery of the insulating tube and the hard insulating material layer; the top end of the zinc oxide arrester main body, the metal screw and the power line terminal are all installed in an insulated safety cover.

2. The hard arrester of claim 1 wherein said double insulated layer and bird damage prevention structure has a pointed tip at the top end of said safety housing.

3. The hard arrester of claim 2, wherein the safety cover is formed by fastening a major part and a minor part of the safety cover to form a t-shaped box; the front end of the inverted L-shaped box body is provided with a protruding cylinder for passing through a power line terminal or a power line; connecting edges are arranged at the transverse edges of the large part and the small part, mounting holes corresponding to each other are arranged on the connecting edges, and the large part and the small part are connected together by penetrating bolts; the pointed top is arranged at the top end of the large part.

4. The hard arrester of claim 1 wherein the hard insulating material comprises: thermosetting resins, thermoplastic resins or engineering plastics.

5. The hard arrester of claim 1 wherein said safety cage is made of plastic.

6. The hard arrester of claim 1 wherein the lower end of the safety housing is provided with an extension box capable of receiving a water-proof disk on the top of the zinc oxide arrester body.