KR102616256B1 - Lightning-protected safety-enhancing overhead distribution cable fixing mechanism - Google Patents

Abstract

The present invention includes a lightning arrester (10), upper and lower armatures (20A, 20B), an insulating insulator (30), an LP insulator (40), a branch sleeve (50), an insulator bracket (60), a coupling insulator (70), and a rotating insulator. Lightning protection type consisting of joint (80), cutout switch (90), lead line (SL1), operation unit (100), transformer (110), lead line (SL2), operation switch (120), and power supply unit (130). It relates to a safety improvement overhead distribution line fixing mechanism, which can protect the overhead distribution line (L) and insulator from lightning, and allows workers on the ground to control the live operating rod (S) by varying the installed angle of the cutout switch (90). There is a technical feature that can maximize the convenience of work in that the assembly work of the fuse holder 92 can be easily performed using .

Description

Lightning-protected safety-enhancing overhead distribution cable fixing mechanism}

The present invention relates to a lightning protection type safety improving overhead distribution line fixing mechanism.

Figure 5 is a diagram for explaining the prior art and problems, and will be described with reference to it as follows.

Generally, complete iron (20A, 20B) and a transformer (110) are installed on the utility pole (P), and LP insulators (40) are installed on the complete iron (20A) to insulate and support the overhead distribution line (L). A branch line is drawn out at (L) via the branch sleeve 50.

The branch line drawn in this way is connected to the transformer 110 through the cutout switch 90 installed on another iron iron 20B.

The cutout switch 90 is a transformer protection device that is installed on the overhead distribution line (L) of the utility pole (P) and the electrical flow path of the transformer 110 to cut off power in an emergency. The cutout switch 90 is protected against overload or A fuse is installed to protect the transformer from lightning and prevent fixation of overhead lines.

The opening principle of the cut-out switch 90 is that when the fuse installed inside the fuse holder 72 of the cut-out switch 90 is blown, the tension of the flipper on the lower fuse fixing part is relieved and the switch is rotated and opened by gravity.

When the fuse holder 92 of the cutout switch 90 is opened as described above, the worker uses the live operating rod (S) on the ground to place the open fuse holder 92 on the upper body of the cutout switch 90. It is closed by combining it. Conventionally, the cutout switch (90) is erected at an angle, so it is not easy for the operator to insert the fuse holder (92) using the live operating rod (S) (closing operation), so it depends on the operator's skill level. There is a fundamental problem that has no choice but to be addressed.

That is, conventionally, the joining work was not easy because the worker had to rotate the fuse holder 92 to join it laterally.

1. Republic of Korea Patent Publication No. 10-2017-0006498

The present invention was developed to solve the above problems. It can protect overhead distribution lines and insulators from lightning, and by changing the installation angle of the cutout switch, workers on the ground can perform the fuse holder assembly work using a stick. The purpose is to provide a lightning-protection type safety-enhancing overhead distribution line fixing device that can maximize the convenience of work in that it can be easily carried out.

The present invention to achieve the above object,

A lightning arrestor installed on the top of a utility pole with a ground wire buried in the ground;

Upper and lower armatures installed side by side and spaced apart at the upper end of the utility pole to be placed at the lower part of the lightning arrester;

An insulating insulator installed on the upper armature to insulate the ground wire;

LP insulator installed on the upper surface of the upper armature to insulate and secure overhead distribution lines;

A branch sleeve electrically connected to an overhead distribution line;

An insulator bracket detachably installed on the lower arm bar so as to be placed on the lower part of the LP insulator;

A coupling insulator connected to one end of the insulator bracket via a fastening means;

An L-shaped insulator connector consisting of a first horizontal piece connected to the other end of the coupling insulator through a fastening means, and a first vertical piece extending vertically upward from the first horizontal piece,

A rotary joint consisting of an L-shaped switch connector consisting of a second vertical piece rotatably coupled to one surface of the first vertical piece via an axis pin and a second horizontal piece extending in the horizontal direction from the top of the second vertical piece;

An insulator body is connected to the second horizontal piece and a fastening means, and has an upper support bracket with a first terminal portion and a lower support bracket with a second terminal portion on the upper and lower surfaces, respectively, and is detachable and rotatable from the lower support bracket. A cutout switch composed of a fuse holder with a lower end electrically connected, an upper end electrically connected to an upper support bracket, and a ring provided on the outer peripheral surface of the upper end;

an incoming line having one end electrically connected to the branch sleeve and the other end electrically connected to the first terminal;

A band is installed to surround the outer peripheral surface of the upper part of the insulator body, one end is rotatably connected to a link bracket installed on the outer surface of the upper arm bar, and the other end is rotatably connected to the band through a rod that expands and contracts by a control signal. A movable unit consisting of an electric cylinder that rotates a cutout switch disposed inclinedly around an axis pin to lay the cutout switch horizontally or return it to its initial state;

A transformer installed on a utility pole to convert high-voltage power into commercial power;

A lead wire with one end electrically connected to the second terminal and the other end electrically connected to the transformer;

An operating switch installed on a utility pole to control the operation of an electric cylinder;

It is characterized by including a power supply unit that supplies power to the electric cylinder and the operation switch.

The present invention can protect overhead distribution lines and insulators from lightning, and allows workers on the ground to easily perform the assembly and separation of fuse holders using a live operating rod by varying the installation angle of the cutout switch. There is an advantage in maximizing convenience.

Figure 1 is a front view of a lightning protection type safety improvement overhead distribution line fixing mechanism according to the present invention.
Figure 2 is a perspective view showing an enlarged portion of a lightning protection type safety improvement overhead distribution line fixing mechanism according to the present invention.
Figure 3 is an exploded perspective view showing a separate excerpt of a lightning protection type safety improvement overhead distribution line fixing mechanism according to the present invention.
Figures 4a to 4c are views for explaining the effect of the lightning protection type safety improvement overhead distribution line fixing mechanism according to the present invention.
Figure 5 is a diagram for explaining the prior art and problems.

Hereinafter, it will be described in detail based on the attached drawings.

Figure 1 is a front view of a lightning protection type safety improvement overhead distribution line fixing mechanism according to the present invention, Figure 2 is an enlarged perspective view of a part of the lightning protection type safety improvement overhead distribution line fixing mechanism according to the present invention, and Figure 3 is a perspective view of the present invention. This is an exploded perspective view showing a separate excerpt of a lightning protection type safety improvement overhead distribution line fixing mechanism according to the invention.

Referring to Figures 1 to 3, the lightning protection type safety improvement overhead distribution line fixing device according to the present invention includes a lightning arrestor (10), upper and lower complete steel (20A, 20B), insulating insulator (30), and LP insulator (40). , branch sleeve (50), insulator bracket (60), coupling insulator (70), rotary joint (80), cutout switch (90), lead-in line (SL1), movable unit (100), transformer (110), lead-out It is composed of a line (SL2), an operation switch 120, and a power supply unit 130. Accordingly, it is possible to protect the overhead distribution line (L) and the insulator from lightning, and by varying the installed angle of the cutout switch 90. There is a technical feature that can maximize the convenience of work in that workers on the ground can easily perform the assembly work of the fuse holder (92) using the live operating rod (S).

Referring to Figures 1 and 2, the lightning arrester 10 is a metal member that is covered on the top of a telephone pole (P) and fixed through a fixing means (eg, a bolt).

In the lightning arrester 10, the ground wire GL, which is exposed to the outside and buried in the ground, is fixed by the insulating insulator 30.

In the case of the lightning arrester 10, since the technology is already widely known in the relevant field, detailed description thereof will be omitted.

Referring to Figures 1 and 2, the upper and lower armatures (20A, 20B) are square pipes made of metal, and are installed and fixed in parallel at the upper end of the electric pole (P) so as to be perpendicular to the longitudinal direction of the electric pole (P). , the upper armature (20A) and the lower armhole (20B) are spaced apart vertically.

In addition, a link bracket 21 is integrally formed on the side of the upper arm 20A.

Referring to Figures 1 and 2, the insulating insulator 30 is installed on the side of the upper armature 20A and serves to insulate the ground wire GL.

Referring to FIGS. 1 and 2, the LP insulator 40 is fixed to the upper surface of the upper armature (20A) and serves to insulate and fix the upper armature (20A) and the overhead distribution line (L) from electrical contact with each other. do.

Referring to Figures 1 and 2, the branch sleeve 50 is installed on the overhead distribution line (L) and serves to electrically connect the overhead distribution line (L) and the lead line (SL1).

1 to 3, the insulator bracket 60 is detachably installed on the lower armature 20B and serves to connect the lower armature 20B and the coupling insulator 60 to each other.

The insulator bracket 60 is composed of a bracket body 61, a support member 62, and a fixing bolt 63.

The bracket body 61 is a member formed by bending a metal plate having a predetermined width and thickness in two stages, and is placed against the upper surface and one side of the lower arm bar 20B so as to be placed at the lower part of the LP insulator 40. do.

The support member 62 is a metal plate having a predetermined width and thickness, and is fitted against the other side of the lower armature 20B so that its upper end penetrates the bracket body 61.

The fixing bolt 63 is disposed on the lower surface of the lower armature 20B and is inserted through the bracket body 61 and the support member 62 to serve to connect the bracket body 61 and the support member 62 to each other. do.

Since the insulating bracket 60 is already a widely known technology in the relevant field, further detailed description will be omitted.

Referring to Figures 1 to 3, the coupling insulator 70 serves to interconnect and insulate the insulator bracket 60 and the rotary joint 80.

One end of the coupling insulator 70 is interconnected with the bracket body 61 of the insulator bracket 60 via fastening means (bolts and nuts), and the other end is an insulator connector constituting the rotary joint 80 ( 81) and are interconnected through fastening means (bolts and nuts).

Referring to Figures 1 to 3, the rotary joint 80 is composed of an insulator connector 81 and a switch connector 82. In this embodiment, the coupling insulator 70 and the cutout switch 90 are rotated. It plays a role in making connections possible.

The insulating connector 81 is composed of a first horizontal piece 81a and a first vertical piece 81b. The first horizontal piece 81a and the first vertical piece 81b are plates having a predetermined width and thickness. And, the first vertical piece (81b) is formed vertically and integrally on the upper surface of the first horizontal piece (81a), forming an overall L-shape.

The switch connector 82 is composed of a second horizontal piece 82a and a second vertical piece 82b. The second horizontal piece 82a and the second vertical piece 82b are plates having a predetermined width and thickness. , and the second vertical piece 82b extends in the horizontal direction from the upper surface of the second horizontal piece 82a, forming an overall L-shape.

This insulator connector 81 and the switch connector 82 are formed integrally with the second vertical piece 82b while the first vertical piece 81b and the second vertical piece 82b are facing each other. ) is rotatably connected.

Referring to FIGS. 1 to 3, the cutout switch 90 is composed of an insulator body 91 and a fuse holder 92, and in this embodiment, a coupling insulator 70 is connected via a rotary joint 80. It is interconnected with each other, electrically connects the lead line (SL1) drawn from the overhead distribution line (L) and the lead line (SL2) led to the transformer 110, and serves to cut off the power in an emergency.

The block formed in the middle of the insulator body 91 is interconnected with the second horizontal piece 82a of the rotary joint 80 via fastening means (bolts and nuts), and is arranged to be inclined upward.

An upper support member (91a) with a first terminal portion (91a-1) and a lower support member (91b) with a second terminal portion (91b-1) are provided on the upper and lower surfaces of the insulator body (91), respectively. The first terminal portion (91a-1) is connected to an overhead distribution line (L) and an incoming line (SL1) that is electrically interconnected via the branch sleeve 50, and the second terminal portion (91b-1) is connected to a transformer (110). Electrically connected lead lines (SL2) are electrically connected to each other.

The lower end of the fuse holder 92 is electrically connected to the lower support member 91b in a detachable and rotatable manner, and the upper end is electrically connected to the upper support member 91a.

A ring 92a is formed on the upper outer peripheral surface of the fuse holder 92, where the ring 92a is used by the operator to hang a ring formed on the upper surface of the live operating rod (S).

Additionally, a fuse is installed in the fuse holder 92 to protect the transformer 110 from overload or lightning and prevent a breakdown of the distribution line.

As an example, the cutout switch 90 is connected by connecting the fuse holder 92 to the upper support bracket 91a while the operator connects the live operating rod S to the ring 92a on the ground. , Here, the opening principle of the cutout switch 90 is that when the fuse built into the fuse holder 92 is melted, the tension at the lower end of the fuse holder 92 is relieved and it opens.

Since the structure and operating principle of the cutout switch 90 are well-known technologies in the relevant field, further detailed description will be omitted.

Referring to Figures 1 and 3, one end of the lead line SL1 is electrically connected to the branch sleeve 50, and the other end is electrically connected to the first terminal portion 91a-1.

Additionally, one end of the lead line SL2 is electrically connected to the second terminal portion 91b-1 and the other end is electrically connected to the transformer 110.

Referring to Figures 1 to 3, the movable unit 100 is composed of a band 101 and an electric cylinder 102, and in this embodiment, one end is rotatable with the link bracket 21 of the upper armbar 20A. It is connected by a link, and the other end is rotatably linked with the insulated body 91 of the cutout switch 90, thereby changing the installed angle of the cutout switch 90 (laying it down or tilting it upright).

The band 101 is a ring-shaped member, and is detachably coupled to the outer peripheral surface of the upper end of the insulator body 91.

For example, the band 101 may be made of synthetic rubber with a certain elasticity, or may be made of synthetic resin.

The electric cylinder 102 is provided with a rod 102a that is withdrawn and withdrawn.

One end of the electric cylinder 102 is link-connected to the link bracket 21 of the upper armbar 20A, and the other end, that is, the rod 102a, is link-connected to the band 101.

The electric cylinder 102 is operated by a control signal from the operation switch 120 to draw in and out the rod 102a, and the cutout switch 90 is connected to the rotary joint 70 by the in and out of the rod 102a. It is rotated around the axis pin 82b-1 and is laid horizontally or converted to the initial state (standing at an angle).

According to this, since the cutout switch 90 can be laid horizontally through the movable unit 100, a worker on the ground can connect the open fuse holder 72 (see FIG. 4a) to the live operating rod without applying much force. There is an advantage that it can be easily combined and closed using (S).

That is, conventionally, the cutout switch 90 is erected at an angle, so it is not easy for the operator to insert the fuse holder 92 (closing operation) using the live operating rod (S), which is a fundamental problem that has to rely on the operator's skill level. However, when the cutout switch (90) is laid horizontally, the fuse holder (92) can be easily inserted using the live operating rod (S) regardless of the operator's skill level, which has the advantage of greatly improving the convenience of work. there is.

To summarize this further, in the past, the joining operation was not easy because the worker had to rotate the fuse holder 92 to couple it laterally, but in the present invention, the worker rotates the fuse holder 92 to join it in the vertical direction. As it progresses, workability becomes very convenient.

Referring to FIG. 1, the transformer 110 is installed on a utility pole (P) and serves to convert high-voltage power coming in through a lead line (SL2) into commercial power.

A lead line (SL2) electrically connected to the second terminal portion (91b-1) of the cutout switch (90) is electrically connected to the transformer (110).

Referring to Figure 1, the operation switch 120 is installed at the lower part of the telephone pole (P) so that the operator can operate it from the ground, and serves to control the operation of the electric cylinder 102 constituting the movable unit 100. .

The rod 102a of the electric cylinder 102 is pulled in and out by operating the operation switch 120.

Referring to FIG. 1, the power supply unit 130 is installed on a utility pole (P) and serves to supply power so that the electric cylinder 102 can operate.

Figures 4a to 4c are diagrams for explaining the effect of the lightning protection type safety improvement overhead distribution line fixing mechanism according to the present invention, which will be described with reference to the following.

Referring to Figure 4a, when a lightning strike occurs, it escapes into the ground through the ground wire (GL) connected to the lightning arrester 10. If the fuse built into the fuse holder 92 is blown due to an overload, the fuse holder 92 As it opens naturally, the transformer 110 is protected.

In this way, when the fuse holder 92 is opened by rotating around the lower part, the worker operates the operating switch 120 installed on the utility pole (P) so that the cutout switch 90, which is erected at an angle through the movable unit 100, is opened. Lay it out horizontally.

To explain this in more detail, as shown in FIG. 4b, when the operator operates the operation switch 120 on the ground, the rod 102a of the electric cylinder 102 is operated by the control signal of the operation switch 120. is pulled out toward the insulator body 91, and the cutout switch 90 connected via the band 101 is rotated around the axis pin 82b-1 of the rotary joint 80, so that the inclined state is in a horizontal state. converted.

When the cutout switch 90 is laid horizontally as described above, the worker hangs the live operating rod (S) on the ring (92a) of the cutout switch (90) from the ground and then centers the lower part of the fuse holder (92). Rotate the fuse holder (92) counterclockwise and push the fuse holder (92) in the vertical direction to couple it.

When the assembly of the fuse holder 92 is completed as described above, the operator operates the operation switch 120 from the ground, as shown in FIG. 4C.

The rod 102a of the electric cylinder 102, which was pulled out by operating the operation switch 120, pulls the band 101, and the insulator body 91 connected to the band 101 is connected to the rotary joint 80. As it rotates counterclockwise around the shaft pin (82b-1), the state from which it was lying horizontally is converted to a state where it is erected at an angle.

As such, in the past, the cutout switch 90 was erected at an angle, so it was not easy for the operator to insert the fuse holder 92 (closing operation) using the live operating rod (S), which is a fundamental problem that had to depend on the operator's skill level. However, when the cutout switch (90) is laid horizontally, the fuse holder (92) can be easily inserted using the live operating rod (S) regardless of the operator's skill level, which has the advantage of greatly improving the convenience of work. there is.

To summarize this further, in the past, the joining operation was not easy because the worker had to rotate the fuse holder 92 to couple it laterally, but in the present invention, the worker rotates the fuse holder 92 to join it in the vertical direction. As it progresses, workability becomes very convenient.

In addition, the height at which the worker must lift the live operating rod (S) can be lowered compared to the prior art, which is very useful in that the risk of musculoskeletal injury and the difficulty of work can also be reduced.

Although the present invention has been described in detail only with respect to the specific embodiments described, it is obvious to those skilled in the art that various changes and modifications can be made within the technical scope of the present invention, and it is natural that such changes and modifications fall within the scope of the appended patent claims.

10: Lightning arrester GL: Ground wire 20A: Upper end
21: Link bracket 20B: Lower end 30: Insulating insulator
40: LP insulator 50: Branch sleeve 60: Insulator bracket
61: Bracket body 62: Support member 63: Fixing bolt
70: coupling insulator 80: rotation joint 81: insulator connector
81a: first horizontal piece 81b: first vertical piece 82: switch connector
82a: Second horizontal piece 82b: Second vertical piece 90: Cutout switch
91: Insulator body 91a: Upper support member 91a-1: First terminal portion
91b: Lower support bracket 91b-1: Second terminal portion 92: Fuse holder
92a: Ring 100: Movable unit 101: Band
102: Electric cylinder 102a: Rod 110: Transformer
120: Operation switch 130: Power supply SL1: Incoming line
SL2: Leader line

Claims (1)

A lightning arrester (10) equipped with a ground wire (GL) buried in the ground and installed on the top of a utility pole (P);
Upper and lower rails (20A, 20B) installed in parallel and spaced apart at the upper end of the utility pole (P) to be placed at the lower part of the lightning arrester (10);
An insulating insulator (30) installed on the upper armbar (20A) to insulate the ground wire (GL);
LP insulator (40) installed on the upper surface of the upper armbar (20A) to insulate and secure the overhead distribution line (L);
Branch sleeve (50) electrically connected to the overhead distribution line (L);
An insulator bracket (60) detachably installed on the lower armature (20B) to be disposed at the lower part of the LP insulator (40);
A coupling insulator (70) connected to one end of the insulator bracket (60) via a fastening means;
L-shaped consisting of a first horizontal piece (81a) connected to the other end of the coupling insulator (70) via a fastening means, and a first vertical piece (81b) extending vertically upward from the first horizontal piece (81a). A shaped insulating connector (81),
A second vertical piece (82b) rotatably coupled to one surface of the first vertical piece (81b) via an axis pin (82b-1), and a second horizontal piece (82b) extending in the horizontal direction from the top of the second vertical piece (82b). A rotary joint (80) consisting of an L-shaped switch connector (82) made of pieces (82a);
An upper support member (91a) is connected to the second horizontal piece (82a) via a fastening means, and has a first terminal portion (91a-1) on the upper and lower surfaces, respectively, and a lower support member with a second terminal portion (91b-1). An insulator body (91) provided with a sphere (91b), a lower end that is detachably and rotatably connected to a lower support bracket (91b), an upper end that is electrically connected to an upper support bracket (91a), and a ring on the outer peripheral surface of the upper portion. A cutout switch (90) consisting of a fuse holder (92) provided with (92a);
A lead line (SL1) whose one end is electrically connected to the branch sleeve 50 and the other end is electrically connected to the first terminal portion (91a-1);
A band 101 is installed to surround the upper outer peripheral surface of the insulator body 91, one end is rotatably connected to a link bracket 21 installed on the outer surface of the upper arm bar 20A, and the other end is connected to the band 101. The cutout switch 90 is placed horizontally by rotating the cutout switch 90, which is inclinedly arranged around the shaft pin 82b-1, via a rod 102a that is rotatably connected and expands and contracts by a control signal. A movable unit 100 consisting of an electric cylinder 102 that returns to the initial state;
A transformer 110 installed on a utility pole (P) to convert high-voltage power into commercial power;
A lead line (SL2) whose one end is electrically connected to the second terminal portion (91b-1) and the other end is electrically connected to the transformer 110;
An operating switch 120 installed on a utility pole (P) to control the operation of the electric cylinder 102;
A lightning protection type safety-enhancing overhead distribution line fixing device comprising a power supply unit 130 that supplies power to the electric cylinder 102 and the operating switch 120.

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