KR102533177B1 - Parallel clamp - Google Patents

Abstract

Parallel clamps to prevent damage to power lines and occurrence of power accidents by forming a plurality of insertion holes into which main wires and a plurality of down-lines are respectively inserted through defects in the first to third clamp bodies in which a plurality of insertion grooves are formed. present. The proposed parallel clamp includes a first clamp body having a plurality of insertion grooves, a second clamp body having a plurality of insertion grooves, and a third clamp body having a plurality of insertion grooves. As the clamp body is coupled, the plurality of insertion grooves are coupled to form a plurality of insertion holes into which the main line and the plurality of down lines are respectively inserted.

Description

Parallel clamp {PARALLEL CLAMP}

The present invention relates to a parallel clamp, and more particularly, to a parallel clamp used to draw a power line lowered from a steel ball to a lightning arrestor, cable head 1, and cable head 2 for undergrounding an overhead power transmission line.

For the undergrounding of the overhead transmission line, the power line lowered from the iron ball is lowered to the arrester, cable head 1 (C/H (1)) and cable head 2 (C/H (2)). At this time, a parallel clamp (parallel clamp) is installed on the power line that is lowered from the iron ball to lower the power line to the arrester and cable head. Parallel clamp is a device that connects Aℓ wires to each other or between Aℓ wires and copper wires in a place where the tension of processed Aℓ wires is not applied.

Since the conventional parallel clamp is formed in a structure in which only two power lines are inserted, when the power line is lowered from the power line ignited in the iron ball to the arrester and cable heads, each separate parallel clamp (e.g., aluminum parallel clamp ) should be taken.

A total of 15 conventional parallel clamps, 5 for each phase, should be installed in the case of a three-phase line. Accordingly, the conventional parallel clamp has problems in that a lot of time is consumed in the installation process due to a complicated facility structure, facility accidents often occur, and rapid work is impossible even during maintenance work.

In addition, the conventional parallel clamp has a structure in which only two power lines are inserted, resulting in bending of the power line in one direction (ie, the direction of the power line being lowered), resulting in damage to the power line and the sheath due to friction between the parallel clamp and the power line. there is

In this case, the conventional parallel clamp has a problem in that an overheating phenomenon occurs due to contact between the power line and the parallel clamp at the portion where the outer shell is damaged, resulting in a power accident.

Korean Patent Registration No. 10-0456343 (Name: Clamp for fastening pipes arranged in parallel)

The present invention has been proposed to solve the above conventional problems, and a plurality of insertion holes into which a main line and a plurality of down lines are respectively inserted through defects of the first to third clamp bodies in which a plurality of insertion grooves are formed. It is an object of the present invention to provide a parallel clamp formed to prevent damage to power lines and occurrence of power accidents.

In order to achieve the above object, a parallel clamp according to an embodiment of the present invention has a first clamp body having a plurality of insertion grooves, a second clamp body having a plurality of insertion grooves, and a third having a plurality of insertion grooves. It includes a clamp body, and as the first to third clamp bodies are coupled, a plurality of insertion grooves are coupled to form a plurality of insertion holes into which the main line and the plurality of down lines are respectively inserted.

The first clamp body is formed by being bent at the center, and is formed on one side of the first bent part and the first bent part where the first insertion groove into which the main line is inserted is formed and combined with the second clamp body, and the first cut-in line is inserted. It includes a first body formed with a second insertion groove and a second body formed on the other side of the first bent portion, coupled with a third clamp body, and formed with a third insertion groove into which a second cut line is inserted.

The first body has a first fastening groove into which a bolt fastened to the second clamp body is inserted, and the second body has a second fastening groove into which a bolt fastened to the third clamp body is inserted.

The second clamp body is formed by being bent at the center, and is formed on one side of the second bent part and the second bent part where the fourth insertion groove into which the main line is inserted is formed, is combined with the first clamp body, and the first cut-in line is inserted. It includes a third body in which a fifth insertion groove is formed, and a fourth body formed on the other side of the second bent portion, coupled to the third clamp body, and in which a sixth insertion groove into which the second cut line is inserted is formed.

The third body has a third fastening groove into which a bolt fastened to the first clamp body is inserted, and the fourth body has a fourth fastening groove into which a bolt fastened to the third clamp body is inserted.

The third clamp body is formed by being bent at the center, and is formed on one side of the third bent part and the third bent part where the seventh insertion groove into which the main line is inserted is formed, is combined with the first clamp body, and the second cut-in line is inserted. It includes a fifth body formed with a seventh insertion groove and a sixth body formed on the other side of the third bent portion, coupled to the second clamp body, and formed with an eighth insertion groove into which a third cut line is inserted.

The fifth body has a fifth fastening groove into which a bolt fastened to the first clamp body is inserted, and the sixth body has a sixth fastening groove into which a bolt fastened to the second clamp body is inserted.

When the first to third clamp bodies are combined, the first insertion groove, the fourth insertion groove, and the seventh insertion groove are combined to form a first insertion hole into which the main wire is inserted, and the second insertion groove and the fifth insertion groove are formed. The grooves are combined to form a second insertion hole into which the first downline is inserted, the third insertion groove and the eighth insertion groove are combined to form a third insertion hole into which the second downline is inserted, and the sixth insertion groove And the ninth insertion groove is coupled to form a fourth insertion hole into which the third cut line is inserted.

The first to third bent parts are bent at the same angle.

According to the present invention, in the parallel clamp, the same tension is formed in a plurality of down-lines, so that bending of the main wire due to the down-line can be prevented, and friction between the parallel clamp and the power line can be prevented to prevent damage to the power line and the sheath. There is an effect.

In addition, the parallel clamp has an effect of preventing the occurrence of overheating due to contact between the power line and the parallel clamp by preventing damage to the power line and the outer shell.

In addition, by simultaneously cutting three power lines at one point, the parallel clamp has the effect of preventing facility accidents by simplifying the configuration of the power line compared to the conventional parallel clamp that cuts the power lines at three points respectively. .

In addition, only one parallel clamp is installed for each phase in the three-phase line to form the same structure as the conventional parallel clamp, thereby minimizing the time consumed in the installation process compared to the conventional parallel clamp in which 15 are installed in the three-phase line, It has the effect of reducing material and construction costs by simplifying the structure and enabling quick work during maintenance work.

1 is a view for explaining a parallel clamp according to an embodiment of the present invention.
2 is a view for explaining the first clamp body of FIG. 1;
3 is a view for explaining the second clamp body of FIG. 1;
4 is a view for explaining a third clamp body of FIG. 1;
5 and 6 are views for explaining a cut-down structure using a parallel clamp according to an embodiment of the present invention.

Hereinafter, the most preferred embodiment of the present invention will be described with reference to the accompanying drawings in order to explain in detail to the extent that those skilled in the art can easily practice the technical idea of the present invention. . First, in adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

Hereinafter, a parallel clamp according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 is a view for explaining a parallel clamp according to an embodiment of the present invention. FIG. 2 is a view for explaining the first clamp body of FIG. 1, FIG. 3 is a view for explaining the second clamp body of FIG. 1, and FIG. 4 is a view for explaining the third clamp body of FIG. . 5 and 6 are diagrams for explaining a cut-down structure using a parallel clamp according to an embodiment of the present invention.

As shown in FIG. 1, the parallel clamp 100 has a first insertion hole 120 into which the main line 10 is inserted, a second insertion hole 140 into which the first down line 20 is inserted, and a second down A third insertion hole 160 into which the line 30 is inserted and a fourth insertion hole 180 through which the third down line 40 is inserted are formed. To this end, the parallel clamp 100 includes a first clamp body 200, a second clamp body 300, and a third clamp body 400.

The first clamp body 200 is bent at a predetermined angle and coupled to the second clamp body 300 and the third clamp body 400 . At this time, the first clamp body 200 is formed with a plurality of insertion grooves into which the main line 10 and a plurality of cut lines are inserted. This will be explained with reference to FIG. 2 as follows.

The first clamp body 200 is composed of a first bent part 220 bent at a predetermined angle in the center, and a first body 240 and a second body 260 formed on both sides of the first bent part 220. That is, the first clamp body 200 has a first bent part 220 bent at a predetermined angle in the center, and a first part formed on one side around the first bent part 220 and coupled to the second clamp body 300. It is composed of a second body 260 formed on the other side of the body 240 and coupled to the third clamp body 400.

At this time, a first insertion groove 222 into which the main line 10 is inserted is formed on the inside of the first bent portion 220 . A first protrusion 224 may be formed on the outer side of the first bent portion 220 corresponding to the position where the first insertion groove 222 is formed. Here, the first insertion groove 222 forms the first insertion hole 120 as the first clamp body 200 is combined with the second clamp body 300 and the third clamp body 400 .

A second insertion groove 242 into which the first cut-down line 20 is inserted is formed on the inside of the first body 240 . At this time, the second protrusion 244 may be formed on the outside corresponding to the position where the second insertion groove 242 is formed in the first body 240 . Here, the second insertion groove 242 forms the second insertion hole 140 as the first clamp body 200 is coupled with the second clamp body 300 . A plurality of first fastening grooves 246 into which the first bolts 50 for coupling with the second clamp body 300 are inserted may be formed in the first body 240 .

A third insertion groove 262 into which the second cut line 30 is inserted is formed on the inside of the second body 260 . At this time, a third protrusion 264 may be formed on the outside of the second body 260 corresponding to the position where the third insertion groove 262 is formed. Here, the third insertion groove 262 forms a third insertion hole 160 as the first clamp body 200 is coupled with the third clamp body 400 . A plurality of second fastening grooves 266 into which second bolts 60 for coupling with the third clamp body 400 are inserted may be formed in the second body 260 .

The second clamp body 300 is bent at a predetermined angle and coupled to the first clamp body 200 and the third clamp body 400 . At this time, the second clamp body 300 is formed with a plurality of insertion grooves into which the main line 10 and a plurality of cut lines are inserted. This will be explained with reference to FIG. 3 as follows.

The second clamp body 300 is composed of a second bent part 320 bent at a predetermined angle in the center and a third body 340 and a fourth body 360 formed on both sides of the second bent part 320. That is, the second clamp body 300 has a second bent part 320 bent at a predetermined angle in the center, and a third part formed on one side around the second bent part 320 and coupled to the first clamp body 200. It is formed on the other side of the body 340 and is composed of a fourth body 360 coupled to the third clamp body 400.

At this time, a fourth insertion groove 322 into which the main wire 10 is inserted is formed on the inside of the second bent portion 320 . A fourth protrusion 324 may be formed on the outside of the second bent portion 320 corresponding to the position where the fourth insertion groove 322 is formed. Here, the fourth insertion groove 322 forms the first insertion hole 120 as the second clamp body 300 is coupled to the first clamp body 200 and the third clamp body 400 .

A fifth insertion groove 342 into which the first lowered line 20 is inserted is formed on the inside of the third body 340 . At this time, a fifth protrusion 344 may be formed on the outside of the third body 340 corresponding to the position where the fifth insertion groove 342 is formed. Here, the fifth insertion groove 342 forms the second insertion hole 140 as the second clamp body 300 is coupled with the first clamp body 200 . A plurality of third fastening grooves 346 into which the first bolts 50 for coupling with the first clamp body 200 are inserted may be formed in the third body 340 .

A sixth insertion groove 362 into which the third cut line 40 is inserted is formed on the inside of the fourth body 360 . In this case, a sixth protrusion 364 may be formed on the outside of the fourth body 360 corresponding to the position where the sixth insertion groove 362 is formed. Here, the sixth insertion groove 362 forms a fourth insertion hole 180 as the second clamp body 300 is coupled with the third clamp body 400 . A plurality of fourth fastening grooves 366 into which third bolts 70 for coupling with the third clamp body 400 are inserted may be formed in the fourth body 360 .

The third clamp body 400 is bent at a predetermined angle and coupled to the first clamp body 200 and the second clamp body 300 . At this time, the third clamp body 400 is formed with a plurality of insertion grooves into which the main line 10 and a plurality of cut lines are inserted. This will be described with reference to FIG. 4 as follows.

The third clamp body 400 is composed of a third bent part 420 bent at a predetermined angle in the center and a fifth body 440 and a sixth body 460 formed on both sides of the third bent part 420. That is, the third clamp body 400 has a third bent part 420 bent at a predetermined angle in the center, and a fifth part formed on one side around the third bent part 420 and coupled to the first clamp body 200. It is formed on the other side of the body 440 and is composed of a sixth body 460 coupled to the second clamp body 300 .

At this time, a seventh insertion groove 422 into which the main line 10 is inserted is formed on the inside of the third bent portion 420 . At this time, a seventh protrusion 424 may be formed on the outside corresponding to the position where the seventh insertion groove 422 is formed in the third bent portion 420 . Here, the seventh insertion groove 422 forms the first insertion hole 120 as the third clamp body 400 is combined with the first clamp body 200 and the second clamp body 300 .

An eighth insertion groove 442 into which the second cut line 30 is inserted is formed on the inside of the fifth body 440 . At this time, an eighth protrusion 444 may be formed on the outside of the fifth body 440 corresponding to the position where the eighth insertion groove 442 is formed. Here, the eighth insertion groove 442 forms a third insertion hole 160 as the third clamp body 400 is coupled with the first clamp body 200 . A plurality of fifth fastening grooves 446 into which second bolts 60 for coupling with the first clamp body 200 are inserted may be formed in the fifth body 440 .

A ninth insertion groove 462 into which the third cut line 40 is inserted is formed on the inside of the sixth body 460 . At this time, a ninth protrusion 464 may be formed on the outside of the sixth body 460 corresponding to the position where the ninth insertion groove 462 is formed. Here, the ninth insertion groove 462 forms a fourth insertion hole 180 as the third clamp body 400 is coupled with the second clamp body 300 . A plurality of sixth fastening grooves 466 into which third bolts 70 for coupling with the second clamp body 300 are inserted may be formed in the sixth body 460 .

As the first clamp body 200 to the third clamp body 400 having the above-described structure are defective, the parallel clamp 100 is formed by combining the insertion grooves formed in each clamp body to insert a plurality of main lines 10 and down lines. to form the insertion holes of That is, when the first clamp body 200 to the third clamp body 400 are coupled to the parallel clamp 100, the first insertion groove 222 formed in the first clamp body 200 and the second clamp body 300 The fourth insertion groove 322 formed in and the seventh insertion groove 422 formed in the third clamp body 400 are combined to form a first insertion hole 120 into which the main wire 10 is inserted. In the parallel clamp 100, the second insertion groove 242 formed in the first clamp body 200 and the fifth insertion groove 342 formed in the second clamp body 300 are combined to form the first down line 20. A second insertion hole 140 is formed, and the third insertion groove 262 formed in the first clamp body 200 and the eighth insertion groove 442 formed in the third clamp body 400 are combined to form a A third insertion hole 160 into which the two lower lines 30 are inserted is formed, and the sixth insertion groove 362 formed in the second clamp body 300 and the ninth insertion groove formed in the third clamp body 400 462 is combined to form a fourth insertion hole 180 into which the third down line 40 is inserted.

Meanwhile, the parallel clamp 100 is formed by bending portions formed on each clamp body at the same angle. That is, in order to prevent damage to the main wire 10 due to the lowering of the lowering wires, the tension in each direction generated by the lowering of the lowering wires should be formed substantially the same. To this end, the parallel clamp 100 forms the curved parts formed on each clamp body to be bent at the same angle.

Referring to FIG. 5 , the main line 10 is inserted through the first insertion hole 120 of the parallel clamp 100, and the first down line is inserted through the second insertion hole 140 to the fourth insertion hole 180. (20) to third down lines (40) are inserted. The first down wire 20 to the third down wire 40 inserted into the second insertion hole 140 to the fourth insertion hole 180 are lowered into the lightning arrester, the first cable head, and the second cable head, respectively.

Accordingly, almost the same tension is formed in three directions by the first downline 20 to the third downline 40 passing through the second insertion hole 140 to the fourth insertion hole 180, and It is possible to prevent the occurrence of bending of the main wire 10 due to, and to prevent friction between the parallel clamp 100 and the power line to prevent damage to the power line and the outer shell.

In addition, the parallel clamp 100 has an effect of preventing the occurrence of overheating due to contact between the power line and the parallel clamp 100 by preventing damage to the power line and the sheath.

In addition, the parallel clamp 100 simultaneously cuts three power lines at one point, thereby simplifying the configuration of the power line compared to the conventional parallel clamp that cuts the power lines at three points respectively, thereby preventing facility accidents It works.

Referring to FIG. 6 , only one parallel clamp 100 may be installed for each phase in a three-phase line to form the same structure as a conventional parallel clamp.

Accordingly, the parallel clamp 100 minimizes the time consumed in the installation process compared to the conventional parallel clamps in which 15 are installed in a three-phase line, simplifies the structure to reduce material and construction costs, and fast work during maintenance work. This is a possible effect.

Although the preferred embodiment according to the present invention has been described above, it can be modified in various forms, and those skilled in the art can make various modifications and variations without departing from the scope of the claims of the present invention. It is understood that this can be done.

10: main line 20: 1st cut-off line
30: 2nd cut-off line 40: 3rd cut-off line
50: first bolt 60: second bolt
70: third bolt 100: parallel clamp
120: first insertion hole 140: second insertion hole
160: third insertion hole 180: fourth insertion hole
200: first clamp body 220: first bent part
222: first insertion groove 224: first protrusion
240: first body 242: second insertion groove
244: second protrusion 246: first fastening groove
260: second body 262: third insertion groove
264: third protrusion 266: second fastening groove
300: second clamp body 320: second bent part
322: fourth insertion groove 324: fourth protrusion
340: third body 342: fifth insertion groove
344: fifth protrusion 346: third fastening groove
360: 4th body 362: 6th insertion groove
364: sixth protrusion 366: fourth fastening groove
400: third clamp body 420: third bent part
422: 7th insertion groove 424: 7th protrusion
440: 5th body 442: 8th insertion groove
444: eighth protrusion 446: fifth fastening groove
460: 6th body 462: 9th insertion groove
464: ninth protrusion 466: sixth fastening groove

Claims (1)

A first clamp body in which a plurality of insertion grooves are formed;
A second clamp body in which a plurality of insertion grooves are formed; and
Including a third clamp body in which a plurality of insertion grooves are formed,
As the first to third clamp bodies are coupled, the plurality of insertion grooves are coupled to form a plurality of insertion holes into which the main line and the plurality of down lines are respectively inserted,
The first clamp body is formed by being bent at the center, and a first bending portion in which a first insertion groove into which the main line is inserted is formed;
The second clamp body is formed to be bent at the center, and the second bent portion is formed with a fourth insertion groove into which the main line is inserted; and
Parallel clamp characterized in that it comprises a; the third clamp body is formed to be bent at the center and a third bent portion in which a seventh insertion groove into which the main wire is inserted is formed.

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