KR20170042199A

KR20170042199A - Line post insulator

Info

Publication number: KR20170042199A
Application number: KR1020150142270A
Authority: KR
Inventors: 송홍준; 김동현
Original assignee: 송홍준; 김동현
Priority date: 2015-10-08
Filing date: 2015-10-08
Publication date: 2017-04-18

Abstract

The present invention relates to a line post insulator having a circular head portion 11 having a lower end fixed to a fixing metal 3 and an upper end formed with a power line seating groove 12 and a power line seating groove 22 A screw 21 is formed on the inside and a reinforcing projection 23 is formed symmetrically on the outside and a screw groove 20 having a key groove 24 symmetrically formed on the upper surface is formed on the top surface of the head 11 A mandrel 10 fixed to the center thereof;
A power line pusher 30 formed with a groove 31 to be placed on the power line 500;
A screw 41 to be assembled to the screw 21 of the screw 20 is formed on the outer surface and a tool insertion groove 42 is formed at the center of the upper surface and a key groove 43 into which the key is inserted is formed radially A power line tightening bolt (40) provided at an interval (e.g.
When the power line tightening bolt 40 is assembled to the screw tube 20, the key groove 43 of the power line tightening bolt 40 and the key groove 24 of the screw tube 20 are aligned with each other, At least two keys (50) inserted into the key groove (43) of the power pipe (40) and the key groove (24) of the screw pipe (20) to prevent reverse rotation of the power wire tightening bolt (40);
And an anti-fouling insulation cap (60) fitted to the upper end of the head part (11) of the mandrel (10)
Since the present invention does not use a binder wire for fixing a power line and solves the problems and disadvantages arising from the above-described prior arts, and provides a new structure capable of fastening the power line to the head portion of the mandrel quickly, conveniently, safely and strongly, The electrical stability, durability, workability, and the like are greatly increased, and the problems and disadvantages arising from the conventional technologies can be solved.

Description

Line post insulator {Line post insulator}

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[TECHNICAL FIELD OF THE INVENTION AND RELATED ART OF THE SAME]

The present invention relates to a line post insulator for fixing a power line 500. The present invention is superior to a conventional technique in which a power line 500 is bound and fixed to a head portion of a line post insulator using an aluminum coated binder wire, Of course, it has the feature of solving the problem of durability of the binder wire and the electric instability due to it.

As is well known, the line post insulator is used to fix and fix the power line 500 while being fixed to the structure of various transmission and distribution lines such as a wiring line of a train. According to the drawings of the present invention, A power line 500 is placed in a concave groove formed in the upper surface of the power line 500 and then the power line 500 and the head portion 11 are bundled and fixed using aluminum-coated binder wires.

Therefore, the fixing force for fixing the power line 500 to the head part 11 is insufficient and the power line 500 can not be fixed to the head part 11 well, thereby causing a safety accident. There is an example in which the aluminum coating of the binder wire is peeled off or formed, the binder wire is easily corroded, the electrical stability is rapidly lowered, and the binder wire is cut off.

In addition, a skilled technician is required to fix the power line 500 to the head using the binder wire, and the problem that the operation time is long can not be neglected.

In order to solve the problems of the prior art described above, the invention for a plurality of line post insulators has appeared. In the case of the publication No. 10-2013-0068825, the pedestal is fixed on the head part of the line post insulator, The fixing cover is covered on the power line 500 and the bolster and the fixing cover are fixed to the head by bolts and nuts. As a result, the bolt and nut are electrically unstable And some of them were used because of the disadvantages of appearance.

Next, in the case of Patent Registration No. 10-0677925, a power line 500 is placed on a head portion as in the prior art, and a power line 500 and a binder line are bundled with a binder line and fixed to the head portion. It is possible to pass the binder wire through the hole to be more firmly tied, but this corresponds to the problem of the prior art described above and the technique that can not be used accompanied by a closed end which can not be avoided.

Next, referring to Patent Registration No. 10-0148629, a clamp is inserted into a head portion, and then a stopper pin is used to assemble the clamp to prevent the clamp from coming off the head portion. Then, the power line 500 is placed in the clamp, The clamping plate under the bolt is pressed and fixed by pressing the power line 500. This is because the parts using the clamping plate similar to the power line pusher 30 of the present invention are partially overlapped, However, since the clamping force of the clamp inserted in the head part is not good, the clamping part of the clamping part separating from the head part is succeeded, and the leakage current generation phenomenon is serious due to the clamp, bolt and fastening plate made of metal, And so on.

Next, in the case of Utility Model Registration No. 20-0167388, the head portion is omitted from the mandrel 10, and instead, the power cable fixing bracket is assembled on the mandrel 10, and the power cable is inserted and tightened by bolts and nuts The brackets and the mandrel 10 have insufficient fixing force, so that the bracket is detached from the mandrel 10 and a leakage current is generated and the appearance of the bracket is too strong.

Next, referring to Patent Registration No. 10-1275324, the present invention is a line post insulator of the present invention, in which a power line is placed on a head portion, a fixed cover is placed on a power line, and a power line is fixed using bolts and nuts, And the bolts and nuts are made of a non-metallic material and have excellent electrical stability. However, there is a disadvantage that the durability of the special bushing described above is somewhat poor and the appearance of the special bushing is somewhat unfavorable.

Therefore, the structure and operation of the above-described prior arts are different from the present invention.

Published Japanese Patent Application No. 10-2013-0068825

Patent Registration No. 10-0677925

Patent Registration No. 10-0148629

Utility model registration No. 20-0167388

Patent Registration No. 10-1275324

[Technical Problem]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a line post insulator having a novel structure capable of solving the problems and disadvantages arising from the conventional art as described above.

[Structure and operation of the invention]

The present invention for solving the above-mentioned problems is constituted as follows.

A lower end portion is fixed to the fixing bracket 3 and an upper end portion thereof is formed with a circular head portion 11 having a power line seating groove 12 formed therein. A power line seating groove 22 is formed at the center, A mandrel 10 in which a reinforcing projection 23 is symmetrically formed on an outer surface thereof and a screw tube 20 having a key groove 24 symmetrically formed on an upper surface thereof is inserted and fixed to the center of the head 11; ;

A power line pusher 30 formed with a groove 31 to be placed on the power line 500;

A screw 41 to be assembled to the screw 21 of the screw 20 is formed on the outer surface and a tool insertion groove 42 is formed at the center of the upper surface and a key groove 43 into which the key is inserted is formed radially A power line tightening bolt 40 provided at a predetermined interval (e.g.

When the power line tightening bolt 40 is assembled to the screw tube 20, the key groove 43 of the power line tightening bolt 40 and the key groove 24 of the screw tube 20 are aligned with each other, A key 50 inserted into the key groove 24 of the screw pipe 20 to prevent reverse rotation of the power line tightening bolt 40;

And a contamination preventing insulating cap 60 fitted to the upper end of the head portion 11 of the mandrel 10,

In the above configuration, in the contamination prevention insulating cap 60,

A gap 62 serving as a guide for widening the power line 500 is formed at the lower end and a power line penetration hole 63 in which the power line 500 is inserted is formed above the gap 62, 61 are further provided symmetrically.

It is to be understood that the present invention is not limited to the details of the foregoing embodiment (s) and is not intended to limit the scope of the present invention, The mandrel 10 of the present invention can be produced by dividing the upper and lower halves into two halves and then assembling them together.

The screw pipe 20, the power line pusher 30 and the power line tightening bolt 40, including the mandrel 10 of the present invention, are made of plastic, BMC, SMC or FRP, or made of a mixed material of the above materials, The mandrel 10 is fixed to the bottom of the lower mold 1 by fastening the fixing bracket 3 fixed to the structure as shown in Fig. 22 and tightening the fixing screw 4, The screw pipe 20 of the present invention is fixed to the screw pipe fixture 2 and the screw pipe fixture 1 is fitted to the lower mold, (BMC, SMC or FRP or a mixture thereof) into a space for forming the mold 10, closing the upper mold (not shown), and then applying heat to complete the mold It can be easily manufactured through the technology of inventor's registered patent (patent registration No. 10-0382081) And the shape of the screw pipe fixture 2 in the state of FIG. 22 may be changed.

The thread tube 20 is attached to the head portion 11 of the mandrel 10 by another mold for forming the insulating cap 100 on the mandrel 10 and the head portion 11 when the above- The mandrel 10 to which the fixing bracket 3 is fixed at the lower end of the mandrel 10 is placed in a mold for insulation molding and silicone rubber is injected into the mold to form the insulation cap 100. Finally, The reinforcing protruding band 23 is formed on the side surface of the screw pipe 20 as shown in FIGS. 1, 2 and 3 so that the fixing force with the head portion 11 of the mandrel 10 is very high The strength of the screw tube 20 is reinforced, and the strength of the screw tube 20 is maintained even when the power wire tightening bolt 40 is strongly assembled into the screw tube 20.

16, the lower end is fixed to the fixing bracket 3 and the upper end is fixed to the power line seating groove 12 as shown in FIG. 19 and FIG. 1 and 2, a power line seating groove 22 is formed at the center of the head portion 11, and a screw 21 is formed at an inner side of the head portion 11, A reinforcing protruding band 23 for reinforcing the self-reinforcing strength is formed symmetrically with the head portion 11 and a key groove 24 in which the key 50 is inserted is symmetrically formed on the upper surface of the head portion 11, ) Is fixed to the insert.

Next, the power line pusher 30 of the present invention has a rectangular shape as shown in FIGS. 7 and 8, and a groove 31 for receiving the power line 500 is formed on the bottom surface thereof.

4, 5 and 6, the power line tightening bolt 40 of the present invention is formed with a screw 41 to be assembled to the screw 21 of the screw 20 at its outer surface, And a key groove 43 in which the key 50 is inserted is formed on the upper surface edge while maintaining a radially equal interval.

Lastly, the anti-fouling insulating cap 60 of the present invention is fitted to the upper end of the head portion 11 of the mandrel 10 as shown in FIGS. 11 and 12 and is made of rubber or silicone. A gap 62 serving as a guiding means for inserting the power line 500 is formed at the lower end by spreading the power line 500 in the left and right direction as shown in FIGS. 63 may be formed symmetrically with respect to the outer surface of the head portion 11, so that penetration of dust, metallic dust, and the like into the head portion 11 can be prevented as much as possible.

18 and 20, the power line seating groove 12 of the head portion 11 and the power line of the screw tube 20 are connected to each other through the fixing bracket 3, The power line 500 is positioned in a straight line in the seating groove 22 and the groove 31 of the bottom surface of the power line pusher 30 is seated on the power line 500 and then the power line tightening bolt 40 is screwed And two of the key grooves 43 of the power line tightening bolt 40 are aligned with the two key grooves 24 of the screw tube 20 as shown in FIG. 19, Two keys 50 are inserted into the key groove 43 of the power line tightening bolt 40 and the key groove 24 of the screw pipe 20. [

Since the power line 500 is wrapped with a rubber material and the power line tightening bolt 40 and the power line pusher 30 are made of a resilient and tough material as described above, It is not so difficult and troublesome that two of the key grooves 43 of the power line tightening bolt 40 are aligned with the two key grooves 24 of the screw tube 20 when tightly tightened in the screw tube 20 .

The present invention is not limited to the use of the above-described binder wires but may be performed by using power lines (not shown) in the state where the power line tightening bolt 40 is tightly coupled with the screw tube 20, And the power line tightening bolt 40 is not rotated by the key 50 due to the reverse rotation of the screw pipe 20.

In the present invention, only one key 50 may be used. However, it is more safe and preferable to use two keys 50. The entire surface of the power line pusher 30 may be coated with silicone rubber, It is also possible to reduce the vertical length of the foreign matter penetration preventing blade 61 in the cap by half so that only the upper portion of the power line 500 is covered.

As described above, the present invention does not use a binder wire for fixing a power line and solves problems and disadvantages arising from the above-described prior arts, thereby providing a new structure that can securely and quickly secure a power line to the head portion of the mandrel quickly and conveniently. The electrical stability, durability, workability, and the like are greatly increased as compared with the conventional art, and the problems and disadvantages caused by the conventional arts can be solved.

1 is a plan view of a threaded tube of the present invention.
2 is a perspective view of a screw tube of the present invention.
Fig. 3 is a longitudinal sectional view of the center part of Fig. 1; Fig.
4 is a plan view of the power line tightening bolt of the present invention.
Fig. 5 is a front view (back symmetry) based on Fig. 4; Fig.
Fig. 6 is a vertical cross-sectional view of the center part of Fig. 4; Fig.
7 is a plan view of the power line pusher of the present invention.
8 is a front view (back symmetry) based on Fig. 7; Fig.
9 is a front view of the key of the present invention.
Fig. 10 is a right side view (left side symmetry) based on Fig. 9; Fig.
FIG. 11 is a vertical sectional side view of a central portion of a contamination preventing insulating cap according to the first embodiment of the present invention. FIG.
12 is a bottom view based on Fig.
13 is a front view (back symmetry) of a contamination preventing insulating cap according to a second embodiment of the present invention.
14 is a bottom view based on Fig.
15 is a vertical cross-sectional view of a central portion of a contamination preventing insulating cap according to a second embodiment of the present invention.
16 is a cross-sectional view showing a state in which a threaded tube is fixed to an insert of the present invention.
17 is a sectional view showing the use state of the present invention.
18 is an enlarged cross-sectional view of an important part based on Fig.
Fig. 19 is a plan view of a state in which the contamination prevention insulating cap is omitted based on Fig. 18; Fig.
FIG. 20 is a plan view showing a state immediately before assembling a key with reference to FIG. 19; FIG.
FIG. 21 is a front view showing a use state of the contamination prevention insulating cap according to the second embodiment of the present invention; FIG.
22 is a reference view showing an embodiment for manufacturing a mold by inserting a screw tube into the head portion of the present invention.
[Description of Drawings] FIG.
10: mandrel 11: head portion 20: threaded tube 30: power line pushbutton
40: Power line tightening nut 50: Key 60: Pollution prevention insulation cap

.

Claims

A lower end portion is fixed to the fixing bracket 3 and an upper end portion thereof is formed with a circular head portion 11 having a power line seating groove 12 formed therein. A power line seating groove 22 is formed at the center, A mandrel 10 in which a reinforcing projection 23 is symmetrically formed on an outer surface thereof and a screw tube 20 having a key groove 24 symmetrically formed on an upper surface thereof is inserted and fixed to the center of the head 11; ;
A power line pusher 30 formed with a groove 31 to be placed on the power line 500;
A screw 41 to be assembled to the screw 21 of the screw 20 is formed on the outer surface and a tool insertion groove 42 is formed at the center of the upper surface and a key groove 43 into which the key is inserted is formed radially A power line tightening bolt (40) provided at an interval (e.g.
When the power line tightening bolt 40 is assembled to the screw tube 20, the key groove 43 of the power line tightening bolt 40 and the key groove 24 of the screw tube 20 are aligned with each other, At least two keys (50) inserted into the key groove (43) of the power pipe (40) and the key groove (24) of the screw pipe (20) to prevent reverse rotation of the power wire tightening bolt (40);
And an anti-fouling insulation cap (60) fitted to the top of the head part (11) of the mandrel (10).

2. The fuel cell system according to claim 1, wherein the contamination preventing insulating cap (60)
A gap 62 serving as a guide for widening the power line 500 is formed at the lower end and a power line penetration hole 63 in which the power line 500 is inserted is formed above the gap 62, 61) are further provided symmetrically.