WO2018216843A1

WO2018216843A1 - Bolt fastening type line post insulator

Info

Publication number: WO2018216843A1
Application number: PCT/KR2017/005769
Authority: WO
Inventors: 서정연
Original assignee: 주식회사 성진
Priority date: 2017-05-23
Filing date: 2017-06-02
Publication date: 2018-11-29
Also published as: KR20170065022A

Abstract

The present invention relates to a line post insulator used for supporting a wire in a distribution line, and a wire binding method for fixing a wire to the head of a conventional insulator induces a voltage at both ends in proportion to the amount of flowing current when current flows through a power line, and when a large amount of current flows through the power line, a high voltage is induced such that an arc is generated and a tracking phenomenon occurs, thereby causing a line accident. In addition, in many countries, research and development are conducted so as to introduce an uninterruptible power supply method using a robot or a stick to work on a distribution line, and the development of equipment suitable for working with a robot or a stick is urgently needed. In order to resolve the above-described problems, the present invention provides a line post insulator, which comprises a cover and a space in a head and fastens the same with a bolt, thereby improving the arc generated in wire binding, having convenient coupling with a wire, facilitating management of materials integrally, and being advantageous to a robot or stick method.

Description

Bolted Line Post Insulator

The present invention relates to a line post insulator used to support an electric wire in a distribution line, and more particularly, to a line post insulator having a cover and a spacer at the head of the insulator and fastened by bolts to fix the electric wire.

In order to install electric wire in overhead distribution line, fixed iron is fixed to electric pole, and electric wire is pulled by suspension insulator or electric wire is supported by line post insulator.

The linepost insulator used to support the electric wire is combined with the wrought iron installed in the electric pole, and is used to form a line by binding the electric wire with a bind wire on the upper or side of the insulator.

The wire bind method, which binds the linepost insulator and wires with the wires for binding, secures the head and wires of the insulator by winding several times.

In the wire bind method, a voltage is induced at both ends in proportion to the amount of current flowing when a current flows through a power line, and when a large amount of current flows through a power line, a high voltage is induced to cause an arc and a tracking phenomenon occurs to a line accident. It leads.

Looking at known techniques to improve this,

Line post insulator cover of Korean Patent Registration No. 0001 is known and in use, but it is provided with a cover separately from the line post insulator and is inconvenient to manage construction and materials by combining several bolts, and the line in the line forming an angle There is a problem in that it is difficult to install the electric wire on the side of the post insulator head.

In addition, there is a line post insulator for laying the distribution line and a method for laying the distribution line using the same in Korea Patent Publication No. 0002, this technique is provided with a shaft coupling member 112, which is a bolt on the top of the insulator body 110, and the mounting holder Fastening means having a holder 120 and the fixing holder 130 and the auxiliary holder 160, and selectively coupled to the distribution lines 150, 150 'different in size in one or two stages through the shaft coupling member 112 As it is fixed to (140), the construction is complicated and difficult to construct and manage, there is a problem in securing the separation distance between the lines when installing the two-stage, especially in the case of configuring two wires of different specifications in the same phase on each wire There is a technical problem that it is not possible to install wires of different specifications in parallel due to the different amount of current flowing.

In addition, the polymer line post insulator of Korea Patent Utility Model 0003 is known, the upper side of the housing (3) can be passed through the processing line 12 and the support (5) is formed to support, the support (5) Bolt grooves are formed on both sides of the semi-circular side of the) so that the bolts (8a, 8b) to fasten and adjust the wire clamp (6) regardless of the size and thickness of the overhead line 12 Applicant is in the process of self-execution.

The Korean Utility Model Registration Document 0003 is a support and bolt of the upper portion that is coupled with the wire, the wire clamp (6) is vulnerable to insulation with metal, and the wire clamp (6) used to fix the wire has a wire and There are two kinds of joining grooves to be joined, and the support body 5 is semi-circular, and does not sufficiently wrap the outer circumferential surface of various sizes of wires, so it is difficult to maintain a circle when crimping and fixing the wires. When falling, the line is angled horizontally or vertically, the electric wire is refracted at both ends of the electric wire clamp 6 and the support 5, which imposes a burden on the conductor, and bolts 8a and 8b when installing the electric wire on the insulator. The process of unwinding and locking the wire is inconvenient, and the wire may be damaged by friction with the wire clamp (6) and the support (5) in the long wire process of pulling the wire. For complex models into the top a large number of constituent members for fixing the wires in the document 0004, and has been recognized that there are disadvantages that the volume increases as a whole is becoming enlarged weight.

In addition, the polymer line post insulator of the Korea Utility Model Document 0004 is known and proposed to improve the disadvantages of the Korea Utility Model Document 0003, the upper fixing means 30 for coupling with the wire is in the housing 10 The core 20 insert of the FRP material is formed in both the protrusions (33, 34) in the molded state in the process line passage groove 31 is formed in the center is formed integrally, each of the protrusions (33, 34) of both The nut rods 32a and 32b are insert-molded in a vertically penetrating state so that the conventional wire clamps 50 are fastened to the adjusting bolts 51a and 51b.

The Korean Utility Model Registration Document 0004 forms the core 20 integrally with the upper part by using the BMC method, which is considerably inferior in strength to that of the rod manufactured by the conventional drawing method. As it falls, it is difficult to improve the disadvantage that the overall volume is large and the weight is large, and the wire clamp 50 used to fix the wire has two types of coupling grooves for coupling with the wires at the top and the bottom thereof, 31) is a rectangular structure that does not cover the outer circumferential surface of wires of various specifications, so it is difficult to maintain the circular shape when crimping and fixing the wires, and the fixing force drops after a long time, and the line forms an angle horizontally or vertically. In this case, the electric wire is refracted at both ends of the wire clamp 6 and the overhead line passing groove 31 to impose a burden on the conductor. Disadvantages of loosening and locking the bolts (8a, 8b) when installing the wires in the wire, and in the long wire work to pull the wire friction with the wire clamp (6) and the processing line passage groove 31 may damage the coating This still exists.

In addition, the line post insulator of the Korean Patent Document 0005 is known, according to the Korean Patent Document 0006 and the Korean Patent Document 0007 proposed by the same inventor below improved, the Korean Patent Document 0005 is a power line on the head portion Put the fixing cover on the power line and fix the power line by using bolts and nuts, but special bushings are added to protect the power lines.The bolts and nuts are made of non-metallic material and have excellent electrical stability. It is admitted that the problem of durability is found to be somewhat poor and the appearance is somewhat crude, and other matters that are considered as problems are mentioned in the following because they are proposed by the inventor of the present invention in addition.

In addition, there is a line post insulator of Korea Patent Document 0006 is known, the same inventor proposed to improve the above-mentioned Korean Patent Document 0005, the same again improved and proposed by the same inventor in the following Korea Patent Document 0007 It is mentioned in

In addition, the line post insulator of Korea Patent Document 0007 is known, but the same inventor proposed to improve the Korea Patent Document 0005 and compared with the Korea Patent Document 0006 is shown to improve some of the wire fastener,

Inserting the screw tube 20 into the head portion 11 is molded integrally by using the core rod 10, plastic or composite material and resin, and not mentioned in this case, but if you look at the proposed proposals to be covered with silicone rubber And is composed of a power line presser 30, a tightening nut 40 and an insulating cap 50.

Currently, plastics other than PE are not used in distribution materials, due to problems such as fire resistance and shrinkage rate, and PE is limited in use due to problems in adhesiveness, and equipment using resins has problems in durability due to corrosion. It is widely used by coating it with a polymeric rubber material.

The Korean patent document 0007 receives a particularly large force such as the power line presser 30 and the tightening nut 40 and the screw tube 20, and the acid of the screw 21 having a large surface area to volume is exposed to the air, thereby causing a great problem in durability. And, the head portion 11 has a disadvantage that the length is up and down because the head tube 11, the power line 500 and the power line presser 30, the tightening nut 40 accommodates.

In the process of installing the power line 500 on the line post insulator, it is difficult to place the power line presser 30 on the power line 500 to match the center of the tightening nut 40 in a state where there is no reference. 40) by applying load to the power line presser 30, the projection strip 31 on the top of the power line presser and the radial groove 43 on the bottom of the power line tightening nut are repeatedly tightened and loosened so that the tightening operation is very difficult and the tightening force is also expected. It is difficult and there is a problem that the tightening nut 40 and the stopper 30 is easily shifted from each other, and further, it will be more difficult for a worker wearing thick insulated rubber gloves when the series of work is performed by live work in the column.

In addition, the high-pressure bindless pin insulator of Japanese Patent No. 0008 is known, which relates to the high-pressure bindless pin insulator 1, and cuts the upper portion of the lower insulator 12 into a jaw shape, and has a screw on the outer surface. An upper insulator 10 which engages with one screw bolt 14 and operates a nut 18 and a nut 16 that engage the member 18 and the screw bolt 14 that are inserted into the screw bent 14a. It is composed of

The Japanese Patent No. 0008 reduces the insulator distance of the insulator, and the lower insulator 12 and the lower part of the pinned bolt 14 are partially coupled to each other, thereby causing a problem in strength, and the wire 100 is a pinned bolt. It is easy to be damaged by friction with the edge of (14), the operation method of fixing the electric wire 100 by operating the nut 16 using the upper insulator 10 is very inconvenient, there is also a complicated disadvantage.

As a result of reviewing a number of prior arts as described above, the configuration of insulators is complicated and the working time is long, structurally concerned about damage to the wire after the work process or installation, or the smooth operation and installation of parts is difficult, and insufficient. There are various problems, such as concern about corrosion of the internal insulator by coating.

In addition, in many countries, research and development and promotion are being conducted to introduce an uninterruptible method using a robot or a stick to work on a distribution line. Therefore, there is an urgent demand for the development of a facility suitable for working with a robot or a stick.

* Prior art literature *

(Patent Document 0001) Korea Utility Model Model 20-0446357 (2009.10.14)

(Patent Document 0002) Korea Patent Publication 10-2013-0068825 (2013.06.26)

(Patent Document 0003) Korea Utility Model Model 20-0167388 (1990.11.02)

(Patent Document 0004) Korea Patent Registration 10-1275324 (2001.12.19)

(Patent Document 0005) Korea Registration Utility Model 20-0259389 (2013.06.10)

(Patent Document 0006) Korea Patent Registration 10-1693399 (2016.12.30)

(Patent Document 0007) Korea Patent Registration 10-1648311 (2016.08.08)

(Patent Document 0008) Japanese Patent No. 2012190751 (Uexamined Publication No. 24190751)

In order to solve the problems of the prior art, the present invention has a bolt-mounted line post insulator used to support the wire in the distribution line has a cover and a spacer on the head and bolted to improve the arc generated in the wire bind and In order to provide convenient bolt and line insulator, it is easy to combine with electric wires, easy to manage materials, and advantageous to robot or stick method.

Bolted line post insulator of the present invention for achieving the above object,

A base 30 having a nut at the bottom thereof, fixed to the wrought iron 3 with a fixing bolt, and having an upper portion coupled to a lower portion of the insulating rod 10;

An insulating rod 10 having a lower portion coupled to an upper portion of the base 30 and having a plurality of coupling grooves on the upper portion and coupled to the head 20;

Molded with a composite material having an insulating function, the lower portion is coupled with the upper portion of the insulating rod 10, the upper surface is formed with a trumpet-shaped curved surface 72 on both ends and the center is a semicircular curved surface 71 It is provided with a groove (70) to engage with the wire (4) directly or through a spacer (60), with a nut (21) on both sides of the edge to engage with the bolt (55), extending the hole of the nut (21) A head 20 having a drain hole 22;

It is formed of a material having an insulation function and elasticity, and is provided with a wire coupling groove 70 having both ends of a trumpet-shaped curved surface 72 and a semicircular curved surface 71 at the center thereof. The inner side is coupled with the wire 4, the lower outer side is engaged with the wire coupling groove 70 of the head and the coupling protrusions 61 are provided on both outer sides of the upper wire coupling groove of the cover 50 A spacer 60 for engaging with 70;

It is formed of a material having an insulating function and elasticity, and is coupled to both ends of the wire coupling groove 70 and the semicircle curved surface 71 having the trumpet-shaped curved surface 72 at the lower surface and the curved surface 71 of the semicircle at the center. It is provided with a concave portion 52 to engage with the upper spacers 60, to form a semicircular curved surface in the center of the upper surface, and to provide a bolt hole 51 on both sides of the edge to engage with the bolt 55, bolt A cover 50 integrally formed by inserting the snap ring 58 into the 55;

It covers the entire outer surface of the insulating rod 10 and the head 20 to prevent corrosion, and has a disk-shaped wing to secure the insulation distance, the hole of the nut 21 is extended downward to drain It is configured to include; rubber coating 40 is provided with (22).

According to the present invention, in the bolt fastening type line post insulator supporting an electric wire in a distribution line,

By coating the entire outer surface of the insulating rod 10 and the head 20 with a rubber coating 40, it is possible to prevent corrosion of the internal insulator, and by using a spacer 60 appropriate to the standard of the wire 4, Applicable to the electric wire (4), the cover 50, the upper spacer 60 and the bolt 55 is integrally formed, the operation is simple and convenient, and the trumpet shape at both ends of the wire coupling groove (70) The curved surface 72 can be applied to protect the wires 4 that are refracted and installed, and the wires 4 can be firmly fixed by fastening the bolts 55, and the bolts 55 can be easily fixed. Arcs generated from wire binding can be improved and have an advantageous effect on the robot or stick method.

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows the standard specification of the polymer line post insulator of KEPCO.

Figure 2 is a view showing the configuration of the bolt fastening line post insulator according to an embodiment of the present invention.

3 is a cross-sectional view of the bolted line post insulator according to an embodiment of the present invention;

Figure 4 is an enlarged view of the head of the bolt fastening line post insulator according to an embodiment of the present invention.

5 is a cross-sectional view of the head of the bolt fastening line post insulator according to an embodiment of the present invention.

Figure 6 is an enlarged view of the bolt fastening linepost insulator cover according to an embodiment of the present invention.

Figure 7 is an enlarged view of the spacer of the bolted line post insulator according to an embodiment of the present invention.

8 is a view showing the installation of the bolt-lined line post insulator according to an embodiment of the present invention.

* Description of the symbols in the drawings *

1: Bolted Type Line Post Insulator 2: Jeonju

3: finished iron 4: wire

10: insulated rod 20: tofu

21: nut 22: drain hole

30: base 40: rubber coating

50 cover 51 bolt hole

52: coupling recess 55: bolt

56: locking washer 57: flat washer

58: snap ring 60: spacer

61: coupling protrusion 70: wire coupling groove (71 + 72)

71: semicircular surface 72: trumpet-shaped surface

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

First, referring to FIG. 2 to FIG. 7, the configuration of the bolt fastening line post insulator of the present invention will be described.

It covers the entire outer surface of the insulating rod 10 and the head 20 to prevent corrosion, and has a disk-shaped wing to secure the insulation distance, the hole of the nut 21 is extended downward to drain It characterized in that it comprises a; (22) is provided with a rubber coating (40).

The coupling of the insulating rod 10 and the head 20 has a plurality of coupling grooves on the upper portion of the insulating rod 10 and can be molded by inserting into the mold of the head 20 or the insulating rod 10 and the head (20) may be molded integrally.

In addition, the trumpet-shaped curved surface 72 provided on the head 20, the cover 50, and the spacer 60 has a bending allowable radius in the case of a cable wire according to the electrical equipment technical standard, depending on the type of cable. Although it is regulated to maintain more than 8 times, there is no regulation on the bending of the wire used in the overhead distribution line, and in the case of KEPCO, as shown in Fig. 1, the side bind points of the head are used when the electric line is angled horizontally. It is required to keep the surface 73 ± 3mm. Thus, the present invention is to use the trumpet-shaped curved surface 72 to protect the wires refracted even in the horizontal line as well as vertically angled lines, it is helpful for the wires to pass smoothly when installing the wires.

In addition, the cover 50 and the upper base 60 are combined to operate integrally, and by using the snap ring 58 to prevent the bolt 55 from being separated from the cover 50, the operation is convenient.

In addition, the hole of the head nut 21 is extended to the rubber coating 40 to provide the drain hole 22 to prevent corrosion of the nut 21 and the bolt 55.

Next, with reference to Figure 8 will be described with respect to the installation of the bolt fastening line post insulator of the present invention,

From the ground, the fixing bolt (not shown) is combined with the nut at the bottom of the base 30, the bolt 55 is loosened and the spacer 60 according to the specification of the electric wire 4 is selected to cover the cover 50 and the upper spacer ( 60 is coupled, and the lower spacer 60 is inserted into the wire coupling groove 70 of the head 20 and the cover 50 is temporarily prepared by filling the bolt 55 to couple to the head 20.

Next, the bolt-mounted line post insulator 1 is moved to the columnar phase to fix the bolt-like linepost insulator 1 using a fixing bolt (not shown).

Next, loosen one bolt 55, open the cover 50, insert the wire into the wire coupling groove 70, cover the cover 50 again, and tighten the bolts 55 on both sides to fix the wire 4 to perform the work. Quit.

When the bolts 55 on both sides of the cover 50 are tightened in the process of fixing the wires 4, the central portion of the cover 50 is evenly distributed in a semicircular curved surface to maintain the appearance of the wires 4 and to keep it firm. It can be fixed.

As described above, the bolt-mounted line post insulator of the present invention,

By coating the entire outer surface of the insulating rod 10 and the head 20 with a rubber coating 40, it is possible to prevent corrosion of the internal insulator, and by using a spacer 60 appropriate to the standard of the wire 4, Applicable to the electric wire (4), the cover 50, the upper spacer 60 and the bolt 55 is integrally formed, the operation is simple and convenient, and the trumpet shape at both ends of the wire coupling groove (70) The curved surface 72 can be applied to protect the wires 4 that are refracted and installed, and the wires 4 can be firmly fixed by fastening the bolts 55, and the bolts 55 can be easily fixed. The arc generated in the wire bind can be improved, and the robot or stick method has an advantageous effect.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the embodiments are not limited to the scope of the technical idea of the present invention.

The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

The present invention is a bolted line post insulator used to support electric wires in a distribution line,

The entire surface of the insulating rod and the head are covered with rubber to prevent corrosion of the internal insulator.Appropriate spacers can be applied to various sizes of wires. It is integrated and simple to work, and it is possible to protect the wires that are refracted by applying the trumpet-shaped curved surface at both ends of the wire coupling groove, and firmly fix the wires by bolting method. In addition, it is possible to fix the arc generated in the wire binding by easily fixing the bolts, and it is expected to be widely used as a facility for supporting the wires in the distribution line because it has an advantageous aspect in the robot or stick method.

Claims

In a line post insulator used to support an electric wire in a distribution line,

A base 30 having a nut at the bottom thereof, fixed to the wrought iron 3 with a fixing bolt, and having an upper portion coupled to a lower portion of the insulating rod 10;

An insulating rod 10 having a lower portion coupled to an upper portion of the base 30 and having a plurality of coupling grooves on the upper portion and coupled to the head 20;

Molded with a composite material having an insulating function, the lower portion is coupled with the upper portion of the insulating rod 10, the upper surface is formed with a trumpet-shaped curved surface 72 on both ends and the center is a semicircular curved surface 71 It is provided with a groove (70) to engage with the wire (4) directly or through a spacer (60), with a nut (21) on both sides of the edge to engage with the bolt (55), extending the hole of the nut (21) A head 20 having a drain hole 22;

It is formed of a material having an insulation function and elasticity, and is provided with a wire coupling groove 70 having both ends of a trumpet-shaped curved surface 72 and a semicircular curved surface 71 at the center thereof. The inner side is coupled with the wire 4, the lower outer side is engaged with the wire coupling groove 70 of the head and the coupling protrusions 61 are provided on both outer sides of the upper wire coupling groove of the cover 50 A spacer 60 for engaging with 70;

It is formed of a material having an insulating function and elasticity, and is coupled to both ends of the wire coupling groove 70 and the semicircle curved surface 71 having the trumpet-shaped curved surface 72 at the lower surface and the curved surface 71 of the semicircle at the center. It is provided with a concave portion 52 to engage with the upper spacers 60, to form a semicircular curved surface in the center of the upper surface, and to provide a bolt hole 51 on both sides of the edge to engage with the bolt 55, bolt A cover 50 integrally formed by inserting the snap ring 58 into the 55;

It covers the entire outer surface of the insulating rod 10 and the head 20 to prevent corrosion, and has a disk-shaped wing to secure the insulation distance, the hole of the nut 21 is extended downward to drain (22) is provided with a rubber coating (40); fastening type line post insulator characterized in that it comprises a.