KR100731931B1 - Prefabricated suspension insulator - Google Patents

Abstract

A prefabricated suspension insulator is provided to prevent permeation of moisture and strongly support an electric wire of a high voltage by fixing an arm on both ends. In a suspension insulator, an insulator wing of a choke shape is protrusively formed on an outer circumferential plane of a right end of a body. A connection ring(12) is protrusively formed from an outer circumference of a center of the body to an outer circumference of a left end of the body. An insertion ring is protrusively formed on a left end of the connection ring(12). An insertion groove into which the insertion ring is inserted, is formed on a right side of the insulator wing. A connection protrusion unit(14) having an outer screw unit is formed on a right end of the insulator wing. A connection bolt(15) is protruded inside a core rod of a center of the right end of the body. A connection groove(16) having an internal screw unit connected to the connection protrusion unit(14) is formed on a center of the left end of the body. A connection nut having an inner screw unit connected to the connection bolt(15) is laid on the core rod, and is connected to the connection bolt(15) and the connection protrusion unit(14). An insertion groove sealed by an insertion ring of the insulator body is formed on the right end of the body. The connection groove(16) having an inner screw unit of the insulator body, and a connection protrusion unit having an outer screw unit connected to the connection groove are formed on the center of the right end of the body. An insertion protrusion unit inserted into the insertion groove is formed on the left end of the body. A connection protrusion unit and a connection bolt having an outer screw unit of the insulator body are inserted into the inner screw unit(16a). A connection groove and a bolt hole having the inner screw unit(16a) are formed.

Description

Prefab Suspension Insulators {PREFABRICATED SUSPENSION INSULATOR}

1 is an exploded perspective view showing a fastening pattern of a prefabricated suspension insulator according to an embodiment of the present invention;

Figure 2 is a plan sectional view showing the construction of the prefabricated suspension insulator according to an embodiment of the present invention,

Figure 3 is an enlarged sectional view showing the main part showing the construction of the prefabricated suspension insulator according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: insulator body 11: agi wing

12: fastening ring 12a: insertion ring

13: insertion recess 14: fastening protrusion

14a: outer thread 15: tightening bolt

16: fastening recess 16a: inner screw portion

17: tightening nut 18: shell

19: mandrel 20: crevis mold

21: insertion groove 22: coupling protrusion

22a: outer thread portion 23: coupling bolt

30: eye mold 31: insertion protrusion

32: coupling recess 32a: inner screw portion

33: bolt hole

The present invention relates to a prefabricated suspension insulator, and more particularly, the core and the shell of the suspension insulator are integrally molded and assembled into a required length by fastening a plurality of fasteners, and fastening the fasteners on both ends thereof to penetrate moisture. It is related to the prefabricated suspension insulator that prevents corrosion or energization by blocking the power, firmly supports the wire such as a special high voltage wire, and is easy to store and move.

 In general, the suspension insulator is one of the electric equipments installed in the ultra high voltage transmission line, the extra high voltage distribution line, the tram line, the low voltage distribution processing line, and the like to connect the electric wires to the poles and prevent insulation. As such, the suspension insulator is required to have good insulating property with high tensile strength because it must be supported to prevent the wire such as a special high voltage wire from being separated.

Conventional suspension insulators use a magnetic material as an insulator, but in the case of using a magnetic material, the weight of the magnetic material is heavy due to the characteristics of the magnetic material, and it is easily broken by mechanical and electrical shock during installation and repair work. In consideration of the convenience of manufacturing, maintenance and handling, a polymer suspension insulator having a polymer synthetic rubber on a core rod such as a fiber glass-reinforced plastic rod (FRP rod) is mainly used.

This conventional power distribution polymer suspension insulator is composed of a core rod formed of glass fiber reinforced plastic (FRP) material, and a polymer synthetic rubber formed to have a plurality of insulator wings at regular intervals while covering the entire portion except for both ends of the core rod. It consists of an outer shell and two metal connectors (hereinafter referred to as "brackets") which are installed to be coupled to both ends of the shell and to both ends of the mandrel.

Such polymer suspension insulators are manufactured in various shapes and sizes as needed. In particular, the polymer suspension insulators may be classified into ball socket type suspension insulators and crevis type suspension insulators according to the shape of the bracket.

However, the conventional polymer suspension insulator for power distribution produced in the above manner is fixed to both ends of the outer shell made of a polymer synthetic rubber shrinkage upon solidification, so that the adhesive is aging or hardened during use as the adhesive is pressed through the adhesive There was a high possibility that a gap would be formed in the connection part of the metal fittings. In other words, the suspension insulator is always subject to severe electrical stress, especially during rainfall or polluted air environment, which discharges continuously and erodes the sealing material. As a result, water infiltrates into the gap between the mandrel and the bracket and thermal expansion. Due to overshrinkage and secondary erosion of the mandrel, the mandrel and the bracket will be separated.

Moisture penetrates from the outside through the gap formed in this way, and moves to the opposite bracket through the gap formed between the mandrel and the outer shell. This causes the insulation between the two brackets to be destroyed, which may cause an electrical accident. There was a problem.

In addition, the length thereof is inconvenient for storage and movement, and the moisture may corrode the inside of the bracket, thereby weakening its strength, thereby causing the bracket to fail to withstand the tensile load of the special high-voltage wire.

The present invention is to solve the above problems, by assembling the core and the outer shell of the suspension insulator by integrally fastening a number of pieces by assembling the required length, by fastening the fasteners on both ends, respectively, the penetration of moisture Its purpose is to prevent corrosion or energization by blocking it, to firmly support wires such as special high voltage wires, and to provide a prefabricated suspension insulator that is easy to store and move.

In order to achieve the above object, the present invention is the insulator body formed integrally with the outer shell of the polymer synthetic rubber having a mandrel formed of glass fiber reinforced plastic (FRP) or epoxy resin and the insulator wings protruding outwardly surrounding the mandrel, and the insulator In the suspension insulator having a crevis-type tool and an eye-type tool respectively coupled to both ends of the body;

The insulator body has a wedge-shaped insulator wing protrudingly formed on the outer periphery of the right end of the body, and a locking ring protrudes outwardly from the outer periphery of the body center to the outer periphery of the body center side. An insertion ring is formed to protrude, and an insertion recess is formed on the right side of the insulator blade to insert and seal the insertion ring. A fastening protrusion having an outer thread is formed at the right end of the aza wing. A fastening bolt is embedded and protrudes, and a fastening recess having an inner threaded portion through which the fastening protrusion is screwed is formed at the center of the left end of the body, and a fastening nut for fastening the fastening bolt is screwed to the inner core of the fastening recess. A plurality of pieces are buried and continuously coupled to the fastening bolt and the fastening protrusion to extend in the longitudinal direction;

The crevice-shaped bracket has an insertion recess formed in the right side of the body by inserting the insertion ring of the insulator body, and is formed in the center of the right side of the body. Coupling protrusions and coupling bolts each have a protrusion;

The eye bracket has an insertion protrusion which is inserted into the insertion recess of the insulator body at the left end of the body, and a coupling recess having an inner threaded portion through which the fastening protrusion and the fastening bolt having the outer threaded portion of the insulator body are inserted and fixed. There is a feature that the bolt holes are formed respectively.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is an exploded perspective view showing a fastening pattern of a prefabricated suspension insulator according to an embodiment of the present invention, Figure 2 is a plan sectional view showing a construction of the prefabricated suspension insulator according to an embodiment of the present invention, Figure 3 is a construction of a prefabricated suspension insulator according to an embodiment of the present invention This is an enlarged sectional view of the main part.

For reference, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof is omitted.

In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator.

Therefore, the definition should be made based on the contents throughout the specification.

The prefabricated suspension insulator of the present invention is a polymer synthetic rubber outer shell (18) having a core rod (19) formed of glass fiber reinforced plastic (FRP) or epoxy resin and the core rod (19) surrounding the core rod (19) and protruding outwardly. Integral to the insulator body (10) formed integrally with, and coupled to one end of the insulator body (10) coupled to a plurality of fasteners (not shown) fixed to the pole (not shown) and fixed by fixing means such as branch line bands and fixtures It is composed of a crevis-shaped tool 20 and the eye mold 30 is coupled to the other end of the plurality of coupled insulator body 10 is coupled by a power line and a clamp.

The insulator body 10 is a polymer synthetic rubber outer shell 18 having a core rod 19 formed of glass fiber reinforced plastic (FRP) or an epoxy resin, and a core wing (11) surrounding the core rod 19 and protruding outward. Is formed integrally, the wedge-shaped insulator wing (11) is formed on the outer periphery of the right end of the body, the fastening ring 12 protrudes outwardly from the outer periphery of the body center side to the outer periphery of the body On the left end of the fastening ring 12, an insertion ring 12a is protruded, and on the right side of the agile blade 11, an insertion recess 13 is formed in which the insertion ring 12a is inserted and sealed. A fastening protrusion 14 having an outer threaded portion 14a is formed at the right end of the insulator wing 11, and a fastening bolt 15 is embedded in the core rod 19 inside the right end of the right end to protrude and protrudes from the left side of the body. A fastening recess 16 having an inner screw portion 16a in which the fastening protrusion 14 is screwed at the center thereof. It is formed, the fastening nut (17) in which the fastening bolt 15 is screwed to the inner center of the fastening recess (16) is embedded in the core rod (19), many of the fastening bolt 15 and the fastening protrusion ( 14) are continuously coupled and extend in the longitudinal direction.

The crevis-type tool 20 is coupled to one end of the plurality of insulator body 10 is coupled to one end of the light (not shown) fixed to the pole (not shown) and the metal is fixed by the fixing means, such as branch line bands and fixtures As a connector, an insertion recess 21 is formed in the right end of the body to insert and seal the insertion ring 12a of the insulator body 10, and the inner screw portion 16a of the insulator body 10 is formed at the center of the right side of the body. The coupling protrusion 22 and the coupling bolt 23 having the outer threaded portion 22a fastened to the fastening recess 16 and the fastening nut 17 are respectively formed to protrude.

The eye bracket 30 is a metal connector coupled to the other end of the plurality of insulator body 10 is coupled to the power line and the clamp, the insertion portion 13 of the insulator body 10 to the left end of the body An insertion protrusion 31 to be inserted is formed, and a coupling protrusion 14 having an outer threaded portion 14a of the insulator body 10 and an inner screw portion 32a to which the fastening bolt 15 is inserted and fastened are fastened. The recessed part 32 and the bolt hole 33 are formed, respectively.

The present invention as described above, the insulator body 10 is stored in a plurality of opponents and moved to the required length by the fastening protrusion 14 and the fastening bolt 15 having the outer threaded portion (14a) during construction At one end of the insulator body 10 in which a plurality is coupled in the bound state, the coupling protrusion 22 and the coupling bolt 23 of the crevis type tool 20 are fastened to the fastening recess 16 of the insulator body 10 and the fastening nut. After fastening to the fastening (17), the other end of the insulator body 10 is fastened to the coupling protrusions 14 of the insulator body 10 to the coupling recess 32 and the bolt hole 33 of the child-shaped bracket 30 The bolts 15 may be fastened and used respectively.

In this way, the insulator body 10 of the present invention is fastened to each of the fastening protrusions 14 and the fastening bolt 15 is tightly coupled to the fastening recess 16 and the fastening nut 17 of the other insulator body 10, respectively, The recess 13 and the insertion ring 12a are more closely in contact with each other to prevent the inflow of moisture into the interior.

As described above, the present invention is formed by assembling as many as necessary length by integrally molding the mandrel and the outer shell of the suspension insulator, and fastening the fasteners on both ends, respectively, to block the penetration of moisture to prevent corrosion or energization accident. It prevents, firmly supports wires such as special high voltage wires, and has the effect of easy storage and movement.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (1)

Agile body formed of glass fiber reinforced plastic (FRP) or a core rod formed of epoxy resin and an outer shell covering the core rod and having a polymer synthetic rubber having an insulator wing projecting outward, and a crevis-type tool coupled to both ends of the insulator body; A suspension insulator comprising an eye mold; The insulator body has a wedge-shaped insulator wing protrudingly formed on the outer periphery of the right end of the body, and a locking ring protrudes outwardly from the outer periphery of the body center to the outer periphery of the body center side. An insertion ring is formed to protrude, and an insertion recess is formed on the right side of the insulator blade to insert and seal the insertion ring. A fastening protrusion having an outer thread is formed at the right end of the aza wing. A fastening bolt is embedded and protrudes, and a fastening recess having an inner threaded portion in which the fastening protrusion is screwed is formed at the center of the left end of the body, and a fastening nut in which the fastening bolt is screwed is embedded at the inner core of the fastening recess. A plurality of fixing parts are continuously coupled to the fastening bolts and the fastening protrusions and extend in the longitudinal direction; The crevice-shaped bracket has an insertion recess formed in the right side of the body by inserting the insertion ring of the insulator body, and is formed in the center of the right side of the body. Coupling protrusions and coupling bolts each have a protrusion; The eye bracket has an insertion protrusion which is inserted into the insertion recess of the insulator body at the left end of the body, and has a coupling recess having an inner screw portion to which the fastening protrusion and the fastening bolt which are inserted and fixed are inserted into the insulator body. Prefabricated suspension insulator formed by each bolt hole.

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