KR102193829B1 - Protection tube coupling device and wire assembly having the same, dead end cover having protection tube coupling portion - Google Patents

Abstract

The protective pipe coupling device of the present invention comprises: a wire protection unit formed in a cylindrical shape to surround an electric wire, and having a cutout portion along a length direction to be coupled to a live wire; A dead-end cover coupling part formed at one end of the wire protection part and enclosing the main wire coupling part or the jumper wire coupling part of the dead end cover, or being inserted into the main wire coupling part or the jumper wire coupling part; And a protrusion formed at the other end of the electric wire protection unit and protruding in a radial direction along the outer circumferential surface of the electric wire protection unit so as to be inserted into the protective pipe protecting the electric wire and caught on the concave coupling portion or the corrugated portion of the protective pipe .
In addition, the present invention provides an electric wire facility including the protective pipe coupling device, and a dead end cover provided with the structure and function of the protective pipe coupling device.

Description

Protection tube coupling device, wire equipment having the same, and dead end cover having a protection pipe coupling part {PROTECTION TUBE COUPLING DEVICE AND WIRE ASSEMBLY HAVING THE SAME, DEAD END COVER HAVING PROTECTION TUBE COUPLING PORTION}

The present invention relates to a protective pipe coupling device for coupling a protective pipe to protect an electric wire and a dead end cover, an electric wire facility provided with the protective pipe coupling device, and a dead end cover provided with a protective pipe coupling structure.

Electric wires for transmission and distribution include main lines and jumper lines. The main wire is supported by an insulating suspension insulator, and the jumper wire is branched from the main wire and connected to other wires. The dead end cover serves to protect the connection part of suspension insulators, mains and jumper wires. And to protect the main ship or jumper wire, a protective pipe for construction or a jumper wire protective pipe is used. For example, Public Utility Model Publication No. 20-2016-0000168 (2016.01.18) discloses a 45kV-class building protection pipe to protect electric wires.

In the initial installation of electric wire equipment, the protective pipe protects the electric wire, but the dead end cover does not have a structure or function that is combined with the protective pipe. Therefore, as time passes after the installation of the electric wire equipment, the protective pipe gradually moves away from the dead end cover due to vibrations caused by wind or the self-weight of a plurality of protective pipes, and moves to the middle part (dip) of the electric wire.

When the protective pipe moves away from the dead end cover, the electric wire is exposed, so there is a risk of a safety accident in the unprotected electric wire section. For example, there is a high risk of accidents when workers at nearby work sites or metal scaffolds come into contact.

The present invention is to propose a protective pipe coupling device capable of easily coupling a dead end cover and a protective pipe.

The present invention is to propose a protective pipe coupling device that firmly maintains the coupling state of the dead end cover and the protective pipe and prevents any separation, unless the dead end cover and the protective pipe are artificially separated.

The present invention prevents the occurrence of unprotected sections by maintaining a solid connection state with the dead end cover without being pushed out to the middle part (dip) of the electric wire between the electric pole and the electric pole by its own weight at the construction site. It is to provide a protective pipe coupling device that can prevent the occurrence of safety accidents.

The present invention is to provide a wire installation provided with the protective pipe coupling device.

The present invention is to provide a dead end cover provided with the structure and function of the protective pipe coupling device.

In order to achieve such an object of the present invention, a protective pipe coupling device according to an embodiment of the present invention is formed in a cylindrical shape to surround an electric wire, and a wire protection unit having a cutout along the length direction to be coupled to a live wire. ; A dead-end cover coupling part formed at one end of the wire protection part and enclosing the main wire coupling part or the jumper wire coupling part of the dead end cover, or being inserted into the main wire coupling part or the jumper wire coupling part; And a protrusion formed at the other end of the electric wire protection unit and protruding in a radial direction along the outer circumferential surface of the electric wire protection unit so as to be inserted into the protective pipe protecting the electric wire and caught on the concave coupling portion or the corrugated portion of the protective pipe. .

According to an example related to the present invention, the outer diameter of the wire protection part is smaller than the outer diameter of the dead end cover coupling part and the outer diameter of the protrusion.

According to another example related to the present invention, the cutout portion extends to a position where the dead end cover coupling portion and the protrusion portion are formed.

According to another example related to the present invention, the dead end cover coupling portion is formed to surround the main wire coupling portion or jumper wire coupling portion of the dead end cover, and has an inner diameter gradually increasing in a direction away from the wire protection portion.

According to another example related to the present invention, the dead end cover coupling part has the smallest inner diameter at the boundary with the wire protection part, and the smallest inner diameter of the mall is than the outer diameter of the main wire coupling part or jumper wire coupling part of the dead end cover. small.

According to another example related to the present invention, the dead end cover coupling portion is formed to be inserted into the main wire coupling portion or jumper wire coupling portion of the dead end cover, and protrudes in a radial direction along the outer peripheral surface of the wire protection portion.

According to another example related to the present invention, the wire protection unit, the first protection having an outer diameter smaller than the inner diameter of the main line coupling portion or the inner diameter of the jumper wire coupling portion so as to be inserted into the main wire coupling portion or jumper wire coupling portion of the dead end cover part; And a second protection unit having an outer diameter greater than an inner diameter of the main line coupling portion or an inner diameter of the jumper wire coupling portion to set the coupling position of the protective pipe coupling device.

According to another example related to the present invention, the protrusion may include a vertical protrusion protruding in a vertical direction from an outer circumferential surface of the electric wire protection unit, and engaging a concave coupling portion or a corrugated portion of the protective pipe; And an inclined portion forming an outer diameter gradually decreasing in the direction of being inserted into the concave coupling portion or the corrugation portion of the protective pipe from the vertical protrusion portion.

According to another example related to the present invention, the concave coupling portion or the corrugated portion of the protective pipe includes a small inner diameter portion and a large inner diameter portion alternately arranged, and the outer diameter of the vertical protrusion is larger than the inner diameter of the small inner diameter portion, and the inclination The minimum outer diameter of the part is smaller than the inner diameter of the small inner diameter part.

According to another example related to the present invention, the protective pipe coupling device further includes a plurality of wire coupling portions protruding toward the opposite side of the wire protection portion based on the protrusion, the plurality of wire coupling portions along the circumference of the protrusion They are arranged to be spaced apart from each other, and are formed to be inclined based on the boundary with the protrusion so as to converge or unfold.

According to another example related to the present invention, the cutout portion extends between any two wire coupling portions of the plurality of wire coupling portions so as to cross the protective pipe coupling device in a longitudinal direction.

In addition, in order to realize the above-described problem, the present invention discloses an electric wire installation including a protective pipe coupling device. The electric wire installation includes: an electrically insulating suspension insulator formed to support the electric wire; A dead end cover coupled to the suspension insulator and protecting a connection portion between a main line connected to the suspension insulator and a jumper wire branched from the main line; A protective pipe surrounding the main line and the jumper line to protect the main line and the jumper line; And a protective pipe coupling device formed to fix the protective pipe to the dead end cover.

In addition, in order to realize the above object, the present invention discloses a dead end cover provided with a structure and function of a protective pipe coupling device. The dead end cover includes: a body portion surrounding the connection portion to protect the connection portion between the main line and the jumper line; A suspension insulator coupling portion formed on one side of the body portion and coupled with a suspension insulator; A main line coupling part formed on the other side of the main body part and formed to surround a main wire connected to the suspension insulator; A jumper wire coupling part formed between the suspension insulator coupling part and the main wire coupling part and formed to surround a jumper wire branched from the main wire; And a protection pipe coupling portion protruding from the outermost portion of the main line coupling portion or the jumper wire coupling portion along an extension direction of the main line or the jumper wire to surround the main line or the jumper wire, and the protective pipe coupling portion It is inserted into the protective pipe protecting the jumper wire and includes a protrusion protruding in a radial direction along the outer circumferential surface of the protective pipe coupling portion so as to be caught on the concave coupling portion or the corrugated portion of the protective pipe.

According to an example related to the present invention, the protrusion may include a vertical protrusion protruding in a vertical direction from an outer circumferential surface of the protective pipe coupling portion, and caught on a concave coupling portion or a corrugated portion of the protective pipe; And an inclined portion forming an outer diameter gradually decreasing in the direction of being inserted into the concave coupling portion or the corrugation portion of the protective pipe from the vertical protrusion portion.

According to another example related to the present invention, the concave coupling portion or the corrugated portion of the protective pipe includes a small inner diameter portion and a large inner diameter portion alternately arranged, and the outer diameter of the vertical protrusion is larger than the inner diameter of the small inner diameter portion, and the inclination The minimum outer diameter of the part is smaller than the inner diameter of the small inner diameter part.

According to another example related to the present invention, the dead end cover further includes a plurality of wire coupling portions formed on the opposite side of the main line coupling portion or the jumper wire coupling portion based on the protective pipe coupling portion, and coupling the plurality of wires The portions are disposed to be spaced apart from each other along the circumference of the protrusion, and are formed to be inclined with respect to the boundary with the protrusion so as to gather or unfold.

According to the present invention having the above configuration, the protective pipe coupling device can be easily inserted into the protective pipe by the structure of the protrusion having an inclined portion. The protective pipe coupling device and the protective pipe can be combined by simply pressing the protective pipe coupling device into the protective pipe. Since the protective pipe coupling device is coupled to the dead end cover, the coupling of the dead end cover and the protective pipe can also be made easily.

In addition, according to the present invention, the structure of the protrusion having a vertical protrusion allows the protective pipe to be not arbitrarily separated from the protective pipe coupling device, and to maintain a rigid coupling state. In addition, a more rigid bond can be achieved using taping.

In addition, according to the present invention, since the state in which the protective pipe is coupled to the protective pipe coupling device is permanently maintained, the occurrence of a phenomenon in which the protective pipe is pushed to the middle part (dip) of the electric wire can be prevented.

In addition, according to the protective pipe coupling device and the electric wire facility proposed in the present invention, the occurrence of unprotected sections of the electric wire can be prevented, and the occurrence of safety accidents can be prevented.

In addition, if a dead end cover equipped with the structure and function of the protective pipe coupling device is used, the protective pipe can be firmly coupled to the dead end cover without separately manufacturing the protective pipe coupling device.

1 is a perspective view showing a first embodiment of a protective pipe coupling device proposed in the present invention.
2 to 4 are conceptual diagrams showing a process in which the protective pipe coupling device of FIG. 1 is coupled to a dead end cover.
5 is a perspective view showing a second embodiment of the protective pipe coupling device proposed in the present invention.
6 to 10 are conceptual diagrams showing a process of coupling the protective pipe coupling device of the second embodiment to the dead end cover, and then coupling the protective pipe to the protective pipe coupling device.
11 is a conceptual diagram of a dead end cover proposed in the present invention and a wire facility in which the dead end cover is installed.
12 is a cross-sectional view of a dead end cover proposed in the present invention and an electric wire facility in which the dead end cover is installed.

Hereinafter, a protective pipe coupling device according to the present invention, an electric wire facility provided with the protective pipe coupling device, and a dead end cover provided with a protective pipe coupling function will be described in more detail with reference to the drawings.

In the present specification, the same and similar reference numerals are assigned to the same and similar configurations even in different embodiments, and the description is replaced with the first description.

When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. Should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle.

The singular expression used in the present specification includes a plural expression unless the context clearly indicates otherwise.

1 is a perspective view showing a first embodiment of a protective pipe coupling device 100 proposed in the present invention.

The protective pipe coupling device 100 is a device for coupling and fixing the protective pipe to the dead end cover. The protective pipe coupling device 100 may be composed of one member. The protective pipe coupling device 100 is formed of an electrically insulating material. Hereinafter, the protective pipe coupling device 100 will be divided into an electric wire protection part 110, a dead end cover coupling part 120, a protrusion 130, and an electric wire coupling part 140.

The wire protection unit 110 is formed in a cylindrical shape to surround the wire. Here, the wire is a concept including the main wire and the jumper wire. When an electric wire is disposed in the hollow of the electric wire protection unit 110, the electric wire protection unit 110 surrounds the electric wire to protect the electric wire.

The wire protection unit 110 includes a cutout 111 along the length direction so as to be coupled to a live wire. A live wire means an electric wire that has been installed and has electricity, and is a concept in contrast to a wire that cuts the current for repair. The electric wire can be inserted into the hollow of the electric wire protection unit 110 through the cutout 111 without cutting off the current of the installed electric wire or separating the electric wire. The longitudinal direction refers to the height direction of the cylinder or the direction toward the dead end cover coupling portion 120 and the protrusion 130 to be described later.

The cutout 111 extends to a position where the dead end cover coupling portion 120 and the protrusion 130 are formed. Further, the cutout 111 extends to a position where the wire coupling portion 140 is formed so as to cross the protective pipe coupling device 100 in the longitudinal direction. For example, the cutout 111 extends between any two wire coupling portions 140 among a plurality of wire coupling portions 140 to be described later.

The dead end cover coupling part 120 is formed at one end of the wire protection part 110. The dead end cover is provided with a main line coupling part surrounding the main line and a jumper wire coupling part surrounding the jumper wire, and the dead end cover coupling part 120 is coupled to the main line coupling part or jumper wire coupling part of the dead end cover.

The dead end cover coupling portion 120 may be formed to surround the main line coupling portion or the jumper wire coupling portion, or may be formed to be inserted into the main line coupling portion or the jumper wire coupling portion. The dead end cover coupling part 120 provided in the protective pipe coupling device 100 of the first embodiment is formed to surround the main wire coupling part or the jumper wire coupling part of the dead end cover. The dead end cover coupling part 220 provided in the protective pipe coupling device 200 of the second embodiment to be described later is formed to be inserted into the main wire coupling part or jumper wire coupling part of the dead end cover.

The dead end cover coupling part 120 has an inner diameter that gradually increases along a direction away from the wire protection part 110 to surround the main wire coupling part or the jumper wire coupling part of the dead end cover. Referring to FIG. 1, it can be seen that the inner diameter and the outer space of the dead end cover coupling part 120 gradually increase as the distance from the wire protection part 110 increases. Therefore, the dead end cover coupling portion 120 has the smallest inner diameter at the boundary with the wire protection unit, and the largest inner diameter at the outermost.

In this case, the outermost inner diameter corresponding to the largest inner diameter is larger than the outer diameter of the main line coupling part or the jumper wire coupling part of the dead end cover. Therefore, the main line coupling part or jumper wire coupling part of the dead end cover can be inserted into the dead end cover coupling part 120, and the dead end cover coupling part 120 can wrap the main wire coupling part or jumper wire coupling part of the dead end cover. have.

In addition, the inner diameter of the boundary between the dead end cover coupling portion 120 and the wire protection portion 110 corresponding to the smallest inner diameter is smaller than the outer diameter of the main line coupling portion or jumper wire coupling portion of the dead end cover. Accordingly, the coupling position of the main line coupling part or the jumper wire coupling part of the dead end cover may be set by a difference in size between the inner diameter of the protective pipe coupling device 100 and the outer diameter of the dead end cover.

When the dead end cover coupling portion 120 surrounds the main line coupling portion or the jumper wire coupling portion, the protective pipe coupling device 100 may be coupled to the dead end cover without opening the clamp of the dead end cover. Accordingly, there is an advantage that the convenience of installing the protective pipe coupling device 100 can be implemented.

The protrusion 130 is formed at the other end of the wire protection part 110. The positions of the dead end cover coupling part 120 and the protrusion 130 are opposite to each other based on the wire protection part 110. Therefore, a dead end cover is coupled to one side of the protective pipe coupling device 100, and a protective pipe is coupled to the other side.

The protrusion 130 is inserted into the protective pipe protecting the wire and protrudes in the radial direction along the outer peripheral surface of the wire protective part 110 so as to be caught in the concave coupling part or the corrugated part of the protective pipe. A small inner diameter portion and a large inner diameter portion are formed in the concave coupling portion or the corrugated portion of the protective pipe. The small inner diameter portion refers to a portion having a relatively small inner diameter compared to the large inner diameter portion, whereas the large inner diameter portion refers to a portion having a relatively large inner diameter compared to the small inner diameter portion. The protrusion 130 is inserted into the protective tube and positioned in the large inner diameter portion, and is caught in a portion connecting the small inner diameter portion and the large inner diameter portion, so that it is not separated arbitrarily.

As the dead end cover coupling part 120 has an inner diameter that gradually increases, and the protrusion 130 protrudes in a radial direction along the outer circumferential surface of the wire protection part 110, the outer diameter of the wire protection part 110 is the dead end cover coupling part It is smaller than the outer diameter of 120 and the outer diameter of the protrusion 130.

The protrusion 130 includes a vertical protrusion 131 and an inclined portion 132.

The vertical protrusion 131 protrudes in a vertical direction from the outer peripheral surface of the wire coupling part 140. When the protective pipe coupling device 100 is inserted into the protective pipe, the vertical protrusion 131 is caught in a portion connecting the small inner diameter portion and the large inner diameter portion in the concave coupling portion or the corrugated portion. The protective pipe coupling device 100 may not be arbitrarily separated from the protective pipe by the vertical protrusion 131.

The inclined portion 132 forms an outer diameter whose outer diameter gradually decreases along a direction in which the vertical protrusion 131 is inserted into the concave coupling portion or the corrugated portion of the protective pipe. The protective pipe coupling device 100 can be easily inserted into the protective pipe by the inclined portion 132.

The plurality of wire coupling parts 140 are formed on the opposite side of the wire protection part 110 with respect to the protrusion 130. The plurality of electric wire coupling portions 140 protrude toward the opposite side of the electric wire protection portion 110 based on the protrusion 130. The plurality of wire coupling portions 140 are disposed to be spaced apart from each other along the circumference of the protrusion 130.

The plurality of wire coupling portions 140 are formed to be inclined with respect to the boundary with the protrusion 130 so as to converge or unfold. Since the thickness of the electric wire may not be uniform, the protective pipe coupling device 100 includes a plurality of electric wire coupling portions 140 to be universally coupled to various types of electric wires having different thicknesses.

When the protective pipe coupling device 100 is coupled to an electric wire having a relatively thin thickness, the plurality of electric wire coupling portions 140 are inclined in a gathering direction so that they are in close contact with the electric wire, and then taped with insulating tape. Conversely, when the protective pipe coupling device 100 is coupled to an electric wire having a relatively thick thickness, as the wire is inserted into the protective pipe coupling device 100, the plurality of wire coupling portions 140 are naturally inclined in a direction in which each other is spread. It is pressed against the wire and then taped with insulating tape.

Next, the process of coupling the protective pipe coupling device 100 to the dead end cover will be described.

2 to 4 are conceptual diagrams showing a state in which the protective pipe coupling devices 1310 and 1320 of FIG. 1 are coupled to the dead end cover 1200.

In the present invention, the electric wire (C1, C2) facility is a concept including a suspension insulator 1100, electric wires (C1, C2), dead end cover 1200, a protective pipe and a protective pipe coupling device 1310, 1320.

The suspension insulator 1100 is formed to support the electric wires C1 and C2. The suspension insulator 1100 has electrical insulation. The suspension insulator 1100 has a structure in which an outer diameter portion and an outer diameter portion are formed repeatedly and alternately.

The wires C1 and C2 include a main wire C1 and a jumper wire C2. Main line C1 is supported by suspension insulator 1100. The jumper wire C2 is branched from the main line C1 and connected to another wire (not shown).

The dead end cover 1200 is coupled to the suspension insulator 1100 and protects a connection portion between the main line C1 connected to the suspension insulator 1100 and the jumper line C2 branched from the main line C1. In the dead end cover 1200, two portions that are symmetrical to each other may be coupled to each other by a clamp 1260. The clamp 1260 may be composed of a protrusion and a protrusion receiving portion. When the two portions that are symmetrical to each other are referred to as a first portion and a second portion, a protrusion is formed in one of the first portion and the second portion, and the protrusion receiving portion is formed in the other.

In a state in which the coupling of the protrusion and the protrusion receiving part is released, the dead end cover 1200 is opened when the first part and the second part are tilted away from each other based on the connection part 1250 of the first part and the second part. Conversely, when the first part and the second part are arranged to overlap each other with respect to the connection part 1250 and then the protrusion and the protrusion receiving part are combined, the dead end cover 1200 is closed.

The dead end cover 1200 includes a body portion 1210, a suspension insulator coupling portion 1220, a main wire coupling portion 1230, and a jumper wire coupling portion 1240. The body portion 1210, the suspension insulator coupling portion 1220, the main wire coupling portion 1230, and the jumper wire coupling portion 1240 are formed by combining the first portion and the second portion described above.

The main body 1210 surrounds the connection portion to protect the connection portion between the main line C1 and the jumper line C2.

The suspension insulator coupling portion 1220 is formed on one side of the body portion 1210 and is coupled to the suspension insulator 1100.

The main wire coupling part 1230 is formed on the other side of the main body part 1210 and is formed to surround the main wire C1 coupled to the suspension insulator 1100.

The jumper wire coupling part 1240 is formed between the suspension insulator coupling part 1220 and the main wire coupling part 1230 and is formed to surround the jumper wire C2 branched from the main wire C1. The jumper wire coupling part 1240 protrudes from the body part 1210 and may form a certain angle with respect to the extension direction of the main wire C1. Here, the constant angle means the angle between the main line C1 and the jumper line C2.

The protective pipe wraps the main line (C1) and the jumper line (C2) to protect the main line (C1) and the jumper line (C2). Each dead end cover 1200 may be provided with at least one protective pipe for protecting the main line C1 and one for protecting the jumper wire C2.

The protective pipe coupling devices 1310 and 1320 are formed to fix the protective pipe to the dead end cover 1200.

Referring to FIG. 2, the protective pipe coupling devices 1310 and 1320 are coupled around the wires C1 and C2 through the cutouts 111 (see FIG. 1) of the protective pipe coupling devices 1310 and 1320. Next, referring to FIG. 3, the protective pipe coupling devices 1310 and 1320 are in close contact with the dead end cover 1200. The size difference between the inner diameter of the dead end cover coupling portions 1312 and 1322 and the outer diameter of the main line coupling portion 1230, the size difference between the inner diameter of the dead end cover coupling portions 1312 and 1322 and the outer diameter of the jumper wire coupling portion 1240 The positions of the protective pipe coupling devices 1310 and 1320 may be determined by.

A plurality of protrusions protruding along the extension direction of the main line C1 and the extension direction of the jumper line C2 may be formed in the main line coupling part 1230 and the jumper wire coupling part 1240, respectively. It may be understood that the plurality of protrusions have substantially the same structure as the wire coupling portion 140 of the protective pipe coupling device 100 described in FIG. 1.

The plurality of protrusions are disposed to be spaced apart from each other along the circumference of the main line coupling part 1230 and the jumper wire coupling part 1240, respectively. When the protective pipe coupling devices 1310 and 1320 are in close contact with the dead end cover 1200, the plurality of protrusions are formed from each other by the shape of the dead end cover coupling portions 1312 and 1322 of the protective pipe coupling devices 1310 and 1320. They are gathered in the direction they are approaching, and are in close contact with the main line (C1) or the jumper line (C2).

When the positions of the protective pipe coupling devices 1310 and 1320 are determined by bringing the protective pipe coupling devices 1310 and 1320 in close contact with the dead end cover 1200, the dead end of any one protective pipe coupling device 1310 as shown in FIG. Tape the cover coupling part 1312 and the main wire coupling part 1230 with an insulating tape T1, and insulate the dead end cover coupling part 1322 and the jumper wire coupling part 1240 of the other protective pipe coupling device 1320 Tape with tape (T2).

And after the wire coupling portions 1314, 1324 of the protective pipe coupling devices 1310, 1320 are closely attached to the outer circumferential surfaces of the wires C1, C2, a plurality of wire coupling portions 1314, 1324 and the electric wires C1, C2 are connected. Tape with insulating tape (T3, T4). When both sides of the protective pipe coupling devices 1310 and 1320 are taped with insulating tapes T1, T2, T3, and T4, the positions of the protective pipe coupling devices 1310 and 1320 may be firmly fixed.

When the protective pipe coupling devices 1310 and 1320 are coupled to the dead end cover 1200, the preparation for installing the protective pipe is completed.

Hereinafter, another embodiment of the protective pipe coupling device will be described.

5 is a perspective view showing a second embodiment of the protective pipe coupling device 200 proposed in the present invention.

In the protective pipe coupling device 200 of the second embodiment, the protrusion 230 is the same as the protective pipe coupling device 100 of the first embodiment. Therefore, the explanation for this is replaced with the previous explanation.

The wire protection part 210 includes a first protection part 211 and a second protection part 212 divided according to the size of an outer diameter.

The first protection part 211 has an outer diameter smaller than the inner diameter of the main line coupling part or the inner diameter of the jumper wire coupling part so as to be inserted into the main wire coupling part or the jumper wire coupling part of the dead end cover. The second protection part 212 has an outer diameter larger than the inner diameter of the main line coupling part or the inner diameter of the jumper wire coupling part so as to set the coupling position of the protective pipe coupling device 200.

The dead end cover coupling part 220 is formed to be inserted into a main wire coupling part or a jumper wire coupling part of the dead end cover. The dead end cover coupling part 220 protrudes from one side of the wire protection part 210 along the outer circumferential surface of the wire protection part 210 in a radial direction.

The dead end cover coupling part 220 may have substantially the same structure as the protrusion part 230. For example, the dead end cover coupling portion 220 may also have a vertical protrusion 221 and an inclined portion 222. The main line coupling portion and the jumper wire coupling portion of the dead end cover include a large inner diameter portion formed at a position relatively close to the body portion and a small inner diameter portion formed at a position relatively far from the body portion. As the dead end cover coupling portion 220 has an outer diameter larger than the small inner diameter portion, the protective pipe coupling device 200 is not arbitrarily separated from the dead end cover.

Although not shown in FIG. 5, the plurality of wire coupling portions 140 described in the first embodiment may also be provided in the protective pipe coupling device 200 of the second embodiment.

Reference numeral 213, which is not described in FIG. 5, denotes an incision, 231 a vertical protrusion, and 232 an inclined portion.

Hereinafter, a process of installing the protective pipe coupling devices 2310 and 2320 of the second embodiment will be described.

6 to 10 show the process of coupling the protective pipe coupling devices 2310 and 2320 of the second embodiment to the dead end cover 2200, and then coupling the protective pipe to the protective pipe coupling devices 2310 and 2320. It is a conceptual diagram.

First, referring to FIG. 6, the protective pipe coupling devices 2310 and 2320 around the main line C1 and the jumper wire C2 using the cutouts 211 (see FIG. 5) of the protective pipe coupling devices 2310 and 2320 Combine Subsequently, the protective pipe coupling devices 2310 and 2320 coupled to the electric wires C1 and C2 are moved toward the dead end cover 2200.

Next, referring to FIG. 7, the dead end cover coupling portions 2312 and 2322 of the protective pipe coupling devices 2310 and 2320 are converted to the main wire coupling portion 2230 or the jumper wire coupling portion 2240 of the dead end cover 2200. Insert. In this process, the clamp 2260 of the dead end cover 2200 may be opened.

Insert the first protection unit (2311a, 2321a) into the main line coupling portion (2230) or jumper wire coupling portion (2240) of the dead end cover (2200), and the protective pipe coupling device (2310, 2320) to the dead end cover (2200) ), the size difference between the outer diameter of the second protection part 2311b and the inner diameter of the main line coupling part 2230, or the size difference between the outer diameter of the second protection part 2321b and the inner diameter of the jumper wire coupling part 2240 The positions of the protective pipe coupling devices 2310 and 2320 may be determined by.

Subsequently, the dead end cover coupling portions 2312 and 2322 are caught in the small inner diameter portion of the main line coupling portion 2230 or the jumper wire coupling portion 2240.

The plurality of protrusions provided in the main line coupling part 2230 and the jumper wire coupling part 2240 of the dead end cover 2200 may be folded in a direction that is unfolded to each other according to the insertion of the protective pipe coupling device.

In addition, referring to FIG. 8, the first protection parts 2311a and 2321a of the wire protection parts 2311 and 2321 and the main wire coupling part 2230 or the jumper wire coupling part 2240 of the dead end cover 2200 are coated with insulating tape ( Tap with T1, T2). After taping with insulating tapes T1 and T2, the installation of the protective pipe coupling devices 2310 and 2320 is completed. That the installation of the protective pipe coupling devices 2310 and 2320 is completed means that the preparation for installing the protective pipe is completed.

Finally, referring to FIGS. 9 and 10, the protective pipes 2400 and 2500 are coupled to the protective pipe coupling devices 2310 and 2320. The protective pipes 2400 and 2500 surround the electric wires C1 and C2 to protect the electric wires C1 and C2. The protective pipe (2400, 2500) is a concept including a protective pipe (2400) for construction or a jumper wire protective pipe (2500). Referring to FIG. 9, a building protection pipe 2400 was used to protect the main line C1, and a jumper line protection pipe 2500 was used to protect the jumper line C2.

The building protection pipe 2400 is provided with a concave coupling part 2410 at the outer end. The concave coupling portion has a structure in which a large inner diameter portion is formed between the two small inner diameter portions.

The jumper wire protective pipe 2500 has a corrugated portion 2510. The corrugated portion 2510 has a structure in which a small inner diameter portion and a large inner diameter portion are alternately and repeatedly formed.

The concave coupling portion 2410 of the building protective pipe 2400 and the corrugated portion 2510 of the jumper wire protective pipe 2500 are protrusions 2313 and 2323 of the protective pipe coupling devices 2310 and 2320 to be inserted and caught. It has something in common in that it has a structure.

Referring to FIG. 9, the protrusions 2313 and 2323 are press-fitted into the protective pipe so that they are caught in the concave coupling part or the corrugated part. The inclined portions of the protrusions 2313 and 2323 have a minimum outer diameter smaller than the small inner diameter portion of the concave coupling portion 2410 or the corrugated portion 2510. Therefore, the protrusions 2313 and 2323 can be easily inserted into the protective tubes 2400 and 2500. The vertical protrusions of the protrusions 2313 and 2323 have an outer diameter larger than that of the concave coupling portion 2410 or the small inner diameter portion of the corrugated portion 2510. Accordingly, the protrusions 2313 and 2323 may be engaged with the concave coupling portion 2410 of the building protective pipe 2400 or the corrugated portion 2510 of the jumper wire protective pipe 2500.

FIG. 10 shows that when the distance between the building protection pipe 2400 and the dead end cover 2200 is less than 2m, which is the standard length, and it is difficult to connect to each other, the jumper line protection pipe 2500 is cut to less than 2m to cut the main line (C1). It is showing that it can protect. Unlike the building protective pipe 2400, the jumper wire protective pipe 2500 can easily cut the corrugated portion 2510 at the work site.

Hereinafter, a dead end cover having the structure and function of the protective pipe coupling device will be described so as not to separately install the protective pipe coupling device.

11 is a conceptual diagram of a dead end cover 3200 proposed in the present invention and a wire facility 3000 in which the dead end cover 3200 is installed. 12 is a cross-sectional view of a dead end cover 3200 proposed by the present invention and a wire facility 3000 in which the dead end cover 3200 is installed.

The dead end cover 3200 includes a body part 3210, a suspension insulator coupling part 3220, a main wire coupling part 3230, a jumper wire coupling part 3240, a protective pipe coupling part 3270, 3280, and a protruding part 3271, 3281). The dead end cover 3200 may be formed as a single member. The dead end cover 3200 is formed of an electrically insulating material.

Descriptions of the body part 3210, the suspension insulator coupling part 3220, the main wire coupling part 3230, and the jumper wire coupling part 3240 are replaced with those described above.

The protective pipe coupling portions 3270 and 3280 protrude along the extension direction of the main line C1 or the jumper line C2 from the outermost edge of the main line coupling portion 3230 or the jumper wire coupling portion 3240 to form the main line C1 or Wrap the jumper wire (C2). The protective pipe coupling portions 3270 and 3280 may be formed in a cylindrical shape to surround the main line C1 or the jumper line C2. When the main line (C1) or jumper wire (C2) is passed through the hollow of the protection pipe coupling parts 3270, 3280, the main wire (C1) or jumper wire (C2) is Protected.

The protrusions 3271 and 3281 protrude in the radial direction along the outer peripheral surfaces of the protective pipe coupling portions 3270 and 3280. The protrusions 3271 and 3281 are formed at the outer ends of the protective pipe coupling portions 3270 and 3280.

The protrusions 3271 and 3281 are inserted into the protective pipe protecting the main line C1 or the jumper wire C2, and are caught in the concave coupling portion or the corrugated portion of the protective pipe. The protrusions 3271 and 3281 are inserted into the protective pipe and placed in the large inner diameter portion of the protective pipe, and are caught in the portion connecting the small inner diameter portion and the large inner diameter portion of the protective pipe, so that they are not separated arbitrarily.

The protrusions 3271 and 3281 include vertical protrusions 3271a and 3281a and inclined portions 3271b and 3281b.

The vertical protrusions 3271a and 3281a protrude in the vertical direction from the outer circumferential surfaces of the protective pipe coupling portions 3270 and 3280. When the protective pipe coupling portions 3270 and 3280 are inserted into the protective pipe, the vertical protrusions 3271a and 3281a are caught in a portion connecting the small inner diameter portion and the large inner diameter portion at the concave coupling portion or the corrugated portion. The dead end cover 3200 may not be arbitrarily separated from the protective pipe by the vertical protrusions 3271a and 3281a.

The inclined portions 3271b and 3281b form an outer diameter whose outer diameter gradually decreases along the direction in which the vertical protrusions 3271a and 3281a are inserted into the concave coupling portion or the corrugated portion of the protective pipe. The dead end cover 3200 can be easily inserted into the protective tube by the inclined portions 3272b and 3281b.

The inclined portions 3271b and 3281b of the protrusions 3271 and 3281 have a minimum outer diameter that is smaller than the small inner diameter portion of the concave coupling portion or the corrugated portion. Therefore, the protrusions 3271 and 3281 can be easily inserted into the protective tube. The vertical protrusions 3271a and 3281a of the protrusions 3271 and 3281 have an outer diameter larger than that of the small inner diameter portion of the concave coupling portion or the corrugated portion. Accordingly, the protrusions 3271 and 3281 may be engaged with the concave coupling portion of the building protective pipe or the corrugated portion of the jumper wire protective pipe.

When the protective pipe is press-fitted into the dead end cover 3200, the protrusions 3271 and 3281 are inserted into the protective pipe and are caught in the concave coupling part or the corrugated part. Accordingly, the dead end cover 3200 and the protective tube are not arbitrarily separated.

Although not shown in FIGS. 11 and 12, the plurality of wire coupling portions 140 described in the protective pipe coupling device 100 of the first embodiment may also be provided in the dead end cover 3200 of FIGS. 11 and 12.

The protective pipe coupling device described above, the wire equipment provided with the protective pipe coupling device, and the dead end cover provided with the protective pipe coupling function are not limited to the configuration and method of the above-described embodiments, but the embodiments are All or some of the embodiments may be selectively combined and configured so that various modifications may be made.

Claims (16)

A wire protection unit formed in a cylindrical shape to surround the electric wire and having a cutout portion along the length direction to be coupled to the live wire;
A dead-end cover coupling part formed at one end of the wire protection part and enclosing the main wire coupling part or the jumper wire coupling part of the dead end cover, or being inserted into the main wire coupling part or the jumper wire coupling part; And
It is formed at the other end of the electric wire protection unit, and is inserted into the protective pipe protecting the electric wire and includes a protrusion protruding in a radial direction along the outer circumferential surface of the electric wire protection unit so as to be caught in the concave coupling portion or the corrugated portion of the protective pipe,
The protrusion,
In a state that is inserted into the protective pipe and caught on the concave coupling portion or the corrugated portion of the protective pipe, perpendicular to the outer circumferential surface of the electric wire protection part to limit movement in a direction opposite to the direction inserted into the protective pipe A vertical protrusion protruding in the direction and caught on the concave coupling portion or the corrugated portion of the protective pipe; And
A protective pipe coupling device comprising: a slope portion forming an outer diameter gradually decreasing along a direction inserted into the concave coupling portion or the corrugated portion of the protective pipe from the vertical protrusion. The method of claim 1,
The outer diameter of the wire protection unit is a protective pipe coupling device, characterized in that smaller than the outer diameter of the dead end cover coupling portion and the outer diameter of the protrusion. The method of claim 1,
The protective pipe coupling device, characterized in that the cutout extends to a position where the dead end cover coupling portion and the protrusion portion are formed. The method of claim 1,
The dead end cover coupling portion is formed to surround the main line coupling portion or the jumper wire coupling portion of the dead end cover, and has an inner diameter gradually increasing in a direction away from the wire protection portion. The method of claim 4,
The dead end cover coupling unit has a smallest inner diameter at the boundary with the wire protection unit, and the smallest inner diameter of the mall is smaller than the outer diameter of the main wire coupling portion or jumper wire coupling portion of the dead end cover. The method of claim 1,
The dead end cover coupling portion is formed to be inserted into the main line coupling portion or the jumper wire coupling portion of the dead end cover, the protective pipe coupling device, characterized in that protruding in a radial direction along the outer peripheral surface of the wire protection portion. The method of claim 1,
The wire protection unit,
A first protection unit having an inner diameter smaller than an inner diameter of the main line coupling portion or an inner diameter of the jumper wire coupling portion so as to be inserted into the main line coupling portion or jumper wire coupling portion of the dead end cover; And
And a second protection unit having an outer diameter larger than the inner diameter of the main line coupling portion or the inner diameter of the jumper wire coupling portion to set the coupling position of the protective pipe coupling device. delete The method of claim 1,
The concave coupling portion or the corrugated portion of the protective pipe has a small inner diameter portion and a large inner diameter portion alternately arranged,
The outer diameter of the vertical protrusion is larger than the inner diameter of the small inner diameter portion, and the minimum outer diameter of the inclined portion is smaller than the inner diameter of the small inner diameter portion. The method of claim 1,
The protective pipe coupling device further includes a plurality of wire coupling portions protruding toward the opposite side of the wire protection portion based on the protrusion,
The plurality of wire coupling units are disposed to be spaced apart from each other along the circumference of the protrusion, and are formed to be inclined with respect to a boundary with the protrusion so as to gather or unfold. The method of claim 10,
The cut-out portion is a protective pipe coupling device, characterized in that extending between any two wire coupling portions of the plurality of wire coupling portions so as to cross the protective pipe coupling device in the longitudinal direction. Electrically insulating suspension insulators formed to support electric wires;
A dead end cover coupled to the suspension insulator and protecting a connection portion between a main line connected to the suspension insulator and a jumper wire branched from the main line;
A protective pipe surrounding the main line and the jumper line to protect the main line and the jumper line; And
An electric wire installation comprising the protective pipe coupling device according to any one of claims 1 to 7 and 9 to 11, which is formed so as to fix the protective pipe to the dead end cover. A body part surrounding the connection part to protect the connection part between the main line and the jumper wire;
A suspension insulator coupling portion formed on one side of the body portion and coupled with a suspension insulator;
A main line coupling part formed on the other side of the main body part and formed to surround a main wire connected to the suspension insulator;
A jumper wire coupling part formed between the suspension insulator coupling part and the main wire coupling part and formed to surround a jumper wire branched from the main wire; And
The main line coupling portion or the outermost portion of the jumper wire coupling portion including a protective pipe coupling portion protruding along the extension direction of the main line or the jumper wire to surround the main line or the jumper wire,
The protective pipe coupling portion is inserted into the protective pipe protecting the main line or the jumper wire, and includes a protrusion protruding in a radial direction along the outer circumferential surface of the protective pipe coupling portion so as to be caught on the concave coupling portion or the corrugated portion of the protective pipe,
The protrusion,
In a state that is inserted into the protective pipe and caught on the concave coupling portion or the corrugated portion of the protective pipe, perpendicular to the outer peripheral surface of the protective pipe coupling portion to limit movement in a direction opposite to the direction inserted into the protective pipe A vertical protrusion protruding in one direction and being caught on the concave coupling portion or the corrugated portion of the protective pipe; And
Dead end cover, characterized in that it comprises an inclined portion forming an outer diameter gradually decreasing along the direction of insertion of the concave coupling portion or the corrugated portion of the protective pipe from the vertical protrusion. delete The method of claim 13,
The concave coupling portion or the corrugated portion of the protective pipe has a small inner diameter portion and a large inner diameter portion alternately arranged,
An outer diameter of the vertical protrusion is larger than an inner diameter of the small inner diameter portion, and a minimum outer diameter of the inclined portion is smaller than an inner diameter of the small inner diameter portion. The method of claim 13,
The dead end cover further includes a plurality of wire coupling portions formed on the opposite side of the main line coupling portion or the jumper wire coupling portion based on the protective pipe coupling portion,
The plurality of wire coupling portions are disposed to be spaced apart from each other along the circumference of the protrusion, and the dead end cover is formed to be inclined based on a boundary with the protrusion so as to gather or unfold.

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