KR102789500B1 - Low-voltage processed electric wire cutting device - Google Patents

Abstract

A low-voltage overhead line branch device is disclosed. A low-voltage overhead line branch device and a construction method using the same according to one embodiment of the present invention enable workers to perform aerial branch construction safely and conveniently.

Description

{Low-voltage processed electric wire cutting device}

The present invention relates to a low-voltage overhead line branch device.

In general, situations may arise where construction is not possible in urban areas (residential areas, commercial areas, one-room apartment areas, etc.) or when roads are narrow or due to public complaints.

Referring to the attached drawings 1 and 2, for example, parking is not allowed in locations such as parking lots and commercial entrances at road intersections (narrow roads), and in the case of roads where sidewalks and roads are not separated, parking is not allowed because it may cause obstruction to the passage of vehicles and the general public.

In addition, there is an increasing trend of urban housing (one-room) sites where construction is not possible to secure a distance from local power lines. In addition, due to the current lack of construction materials for aerial branching of single-sided low-voltage branch lines, there is a lack of construction materials for aerial branching in the low-voltage span where single-sided branching is required due to on-site conditions.

Although there are construction standards for aerial branches in non-tensioned areas in the design standards for overhead distribution systems, there is an absence of specific aerial branch construction methods and construction materials.

The design standards for overhead wiring stipulate that branching of overhead wires must be carried out at the point where the wires are supported. However, in cases where it is unavoidable during construction, it is stipulated that this is excluded when installing the wires so that tension is not applied.

As an example, it explains an example of improper construction on-site of a low-pressure aerial branch.

Referring to the attached drawings 3 to 5, in the case of urban areas or narrow road sites with a large floating population, there is a risk of safety accidents, the construction quality is deteriorated due to the absence of a reference member for an aerial branch on a one-sided low-pressure overhead branch line, and there is a concern of detachment due to the burden of wind pressure and lateral load due to the construction of an aerial branch during a low-pressure span.

In addition, in the case of a 3-phase 4-wire system, equipment (racks for 4-wire + insulators, etc.) with a high load of about 10 kg is installed, so problems arise due to the burden of the load, and in places where poles cannot be installed, such as densely populated housing (one-room apartments) in urban areas or on narrow roads, installation is difficult, so a fundamental solution is needed.

The conventional aerial branch construction type is explained with reference to the drawings.

Referring to the attached Figure 6, the fuel consumption of the inlet aerial branch accounts for 60%, and it is widely used in actual fields as it has design and construction standards.

Referring to the attached Figure 7, the horizontal intermediate intersection branch accounts for 20% of the fuel consumption, and is widely used in actual fields as it has design and construction standards.

Referring to the attached Figure 8, the occupancy rate for single-sided aerial branches is in the 20% range, and there are no design and construction standards.

When performing an aerial branch on a low-pressure main line in this way, it must be done at a point where the low-pressure main line is supported, and if support for the low-pressure main line is unavoidable due to work conditions, care must be taken to ensure that no tension is applied.

Therefore, it became necessary to develop a material that could stably perform aerial branching on low-voltage overhead lines.

Republic of Korea Patent No. 10-1154493

Embodiments of the present invention aim to provide a low-voltage overhead line branch device that is easy to construct, safe, and lightweight.

A low-voltage overhead line branch device according to one embodiment of the present invention comprises: a support (100); a support clamp (200) coupled to the upper and lower sides of the support (100) and through which an overhead line (10) passes; a fastening member (300) coupled to the support clamp (200) to secure the overhead line (10); and a branch clamp (400) having one end fixed to the support clamp (200) and provided such that a branch line (20) branched from the overhead line (10) is branched in the air.

The above support (100) is made of a non-metallic material.

The above support clamp (200) further includes an insertion portion (210) provided at one end to be coupled to the support (100).

The above support clamp (200) is formed integrally with the insertion portion (210) and further includes a support holder (220) having a first groove portion (224) formed therein into which the processing wire (10) is inserted.

The above support clamp (200) further includes a first fixing member (230) that extends outwardly and has one end joined to the support holder (220) and moves forward or backward to maintain the processing wire (10) in a fixed state.

The above support holder (220) is characterized by being opened toward the upper side of the support (100).

The above support holder (220) includes a first support holder (221) formed integrally with the insertion portion (210); and a second support holder (222) positioned facing the first support holder (221) and coupled with the first fixing member (230).

In the second support holder (222), a second groove (222a) is formed at a position facing the first groove (224).

The second support holder (222) is formed with a first protrusion (222b) that protrudes outwardly on the upper and lower sides of the opposing surface facing the first support holder (221).

The first support holder (221) has a first insertion groove (221a) formed on a surface facing the first protrusion (222b) into which the first protrusion (222b) is inserted.

The above support clamp (200) is formed with a connecting hole (202) to which the above branch clamp (400) is connected.

The above branch clamp (400) is characterized in that it is maintained in a state of being spaced apart at a predetermined interval via the support clamp (200) and the wire member (500).

The above wire member (500) is made of an insulating material.

The above wire member (500) is extended to a preset length.

The above branch clamp (400) is made of an insulating material.

The above branch clamp (400) includes a branch holder part (410) to which the wire member (500) is connected on one side and through which the branch line (20) passes.

The above branch holder part (410) is extended to a predetermined length, and an extension part (412) extended to a predetermined length is formed to guide the movement direction of the branch line (20).

The above branch holder part (410) has a clamp groove (413) formed so that the above branch line (20) can be inserted.

The above branch holder part (410) further includes a second fixing member (414) provided for fixing to the branch line (20) on the upper side of the clamp groove (413).

The second fixed member (414) has an insertion groove (414b) formed at a position facing the clamp groove (413).

A pair of bolts extending outward from the lower surface of the branch holder portion (410) via the upper surface are used in the second fixed member (414).

This embodiment is used in a method for constructing an overhead wire branch using an overhead wire branch device.

Embodiments of the present invention are lighter than conventional ones, allowing workers to perform work more conveniently.

Embodiments of the present invention can be assembled with a simple configuration, thereby reducing manufacturing costs, facilitating construction and simplifying work, and preventing accidents due to electric shock during work, thereby preventing safety accidents for workers.

Figures 1 and 2 are drawings showing the construction of a conventional low-pressure aerial branch.
Figures 3 to 5 are drawings illustrating cases of improper construction of conventional low-pressure aerial branch sites.
Figures 6 to 8 are drawings illustrating conventional aerial branch construction types.
Fig. 9 is a perspective view illustrating a low-voltage overhead line branch device according to the present embodiment.
Figures 10 and 11 are drawings illustrating a support and a support clamp according to the present embodiment.
Fig. 12 is a drawing showing the state of connection of a branch clamp and a wire member according to the present embodiment.
Figures 13 to 15 are drawings illustrating a branch clamp according to the present embodiment.
Figures 16 and 17 are drawings illustrating examples of a low-voltage overhead line branch device according to the present embodiment.

The advantages and features of the present disclosure, and the methods for achieving them, will become apparent by referring to the embodiments described in detail below together with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below, but may be implemented in various different forms, and the embodiments are provided only to make the disclosure of the present disclosure complete and to fully inform those skilled in the art of the scope of the disclosure, and the present disclosure is defined only by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

When a component is referred to as being "connected to" or "coupled to" another component, it includes both the case where it is directly connected or coupled to the other component, or where there are other intervening components. On the other hand, when a component is referred to as being "directly connected to" or "directly coupled to" another component, it indicates that there are no other intervening components. "And/or" includes each and every combination of one or more of the mentioned items.

The terminology used herein is for the purpose of describing embodiments only and is not intended to be limiting of the present disclosure. As used herein, the singular includes the plural unless the context clearly dictates otherwise. The terms "comprises," and/or "comprising," as used herein, do not exclude the presence or addition of one or more other components, steps, operations, and/or elements.

Although the terms first, second, etc. are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from another.

A low-voltage overhead line branch device according to an embodiment of the present invention will be described with reference to the drawings. For reference, the attached FIG. 9 is a perspective view illustrating a low-voltage overhead line branch device according to the present embodiment, and FIGS. 10 and 11 are drawings illustrating a support and a support clamp according to the present embodiment.

Referring to the attached drawings 9 to 11, a low-voltage overhead line branch device according to the present embodiment includes a support (100), a support clamp (200) coupled to the upper and lower sides of the support (100) and through which an overhead line (10) passes, a fastening member (300) coupled to the support clamp (200) to secure the overhead line (10), and a branch clamp (400) having one end fixed to the support clamp (200) and provided so that a branch line (20) branched from the overhead line (10) is branched in the air.

In this embodiment, aerial branching can be performed without generating tension in the overhead wire (10) for the low-voltage span, thereby improving the convenience of construction, the quality of the workpiece, and the safety.

The above support (100) is made of a non-metallic material, for example, FRP or engineering plastic, so it is light in weight and convenient for workers to construct on site.

The above support (100) is not limited to the length shown in the drawing and can be changed in various ways.

The above support clamp (200) is provided with an insertion portion (210) at one end to be connected to the support (100), so that a worker can easily install it on site.

After the above support clamp (200) is installed on the support (100), it is maintained in a fixed state by a bolt separately provided for position fixation.

The above support clamp (200) is formed integrally with the insertion portion (210) and further includes a support holder (220) having a first groove portion (224) formed therein into which the processing wire (10) is inserted.

The above first groove (224) provides a space into which a processing wire (10) is inserted together with the second groove (222a) described later, thereby preventing the processing wire (10) installed in the support holder (220) from coming off.

The above support holder (220) is positioned to protrude upward from the support clamp (200) and is opened toward the upper side of the support (100) so that the processing wire (10) is inserted from the upper side.

The above support clamp (200) further includes a first fixing member (230) that extends outwardly and has one end joined to the support holder (220) and moves forward or backward to maintain the processing wire (10) in a fixed state.

The above first fixing member (230) is configured in the form of a bolt, for example, so that when the worker rotates it clockwise or counterclockwise, the support clamp (200) moves forward or backward toward the processing wire (10). The above first fixing member (230) maintains an axial fixing force with respect to the processing wire (10) to prevent detachment.

The above support holder (220) includes a first support holder (221) formed integrally with the insertion portion (210), and a second support holder (222) positioned facing the first support holder (221) and coupled with the first fixing member (230).

The above first support holder (221) is of a fixed type, and the second support holder (222) can be moved toward the first support holder (221) by the first fixing member (230), so that fixation to the processing wire (10) can be easily performed.

The second support holder (222) has a second groove (222a) formed at a position facing the first groove (224). The second groove (222a) provides a space into which the processing wire (10) is inserted, so when the second support holder (222) is moved closely to the first support holder (221), the first groove (224) and the second groove (222a) surround the outside of the processing wire (10), preventing it from coming off to the outside, thereby safely protecting it.

The first groove (224) and the second groove (222a) above have screw threads formed on the inside, so that when the processing wire (10) is inserted, frictional force is generated to prevent it from coming off to the outside.

The second support holder (222) is provided with a first protrusion (222b) that protrudes outwardly on the upper and lower sides of the opposing surface facing the first support holder (221), and the first support holder (221) is provided with a first insertion groove (221a) into which the first protrusion (222b) is inserted on the opposing surface facing the first protrusion (222b).

When the first protrusion (222b) is inserted into the first insertion groove (221a), the first support holder (221) and the second support holder (222) are interlocked and connected to each other, so that, in addition to the fixing force by the first fixing member (230) described above, the fixing force for the processing wire (10) and the coupling force of the first and second support holders (221, 222) can be stably maintained.

Referring to the attached drawings 12 to 17, the support clamp (200) is formed with a connecting hole (202) for coupling the branch clamp (400). The connecting hole (202) may be formed in various forms other than the form shown in the drawing.

The above branch clamp (400) is maintained at a predetermined interval by the support clamp (200) and the wire member (500), and the wire member (500) is made of an insulating material. The wire member (500) is extended to a preset length and is made of an insulating material, so that accidents to workers due to electric shock can be prevented.

The above wire member (500) can maintain a constant distance from the support (100) at all times when the branch line (20) branches off from the overhead wire (10), thereby maintaining a constant distance even when branching work is performed in the air for one or three or more phases.

Since the above branch clamp (400) is made of an insulating material, it can prevent accidents caused by electric shock during work. In addition, even when the humidity in the work area is high, it can prevent accidents caused by short circuits or electric shock, thereby improving safety.

The above branch clamp (400) includes a branch holder part (410) to which the wire member (500) is connected on one side and through which the branch line (20) passes.

The above branch holder part (410) is extended to a predetermined length, and an extension part (412) extended to a predetermined length is formed to guide the movement direction of the branch line (20).

The above branch holder part (410) has a clamp groove (413) formed so that the branch line (20) can be inserted, and thus the branch line (20) is inserted.

The above branch holder part (410) further includes a second fixing member (414) provided for fixing to the branch line (20) on the upper side of the clamp groove (413).

The second fixed member (414) above has an insertion groove (414b) formed at a position facing the clamp groove (413), so that it can be fixed to the branch line (20) together with the clamp groove (413), thereby preventing it from being detached to the outside.

The above clamp groove (413) and insertion groove (414b) have screw threads formed on the inside, so that when the processing wire (10) is inserted, frictional force is generated to prevent it from coming off to the outside.

The second fixing member (414) uses a pair of bolts that extend outside the lower surface of the branch holder part (410) via the upper surface. When the second fixing member (414) is rotated in the direction of gravity toward the ground from the upper side for fixing to the branch line (20), fixing to the branch line (20) can be conveniently performed.

In this embodiment, work on one phase or three phases can be conveniently and safely performed through a support clamp (200) and a branch clamp (400).

In addition, in this embodiment, since the branch line (20) branching off from the processing wire (10) can branch off to the right as shown in FIG. 16 or conveniently branch off to the right as shown in FIG. 17, workers can safely perform work in various work environments using the support clamp (200), the branch clamp (400), and the wire member (500).

This embodiment is used in a method for constructing overhead wire branching using an overhead wire branching device. Compared to the difficulty of aerial branching work due to various existing restrictions, this embodiment greatly improves convenience by allowing workers to safely and correctly perform aerial branching work.

Above, although one embodiment of the present invention has been described, it will be apparent to those skilled in the art that various modifications and changes to the present invention can be made by adding, changing, deleting or adding components, etc., within the scope of the invention as described in the claims, and this is also included within the scope of the present invention.

10: Overhead wire
20: Branch line
100: Support
200: Support Clamp
210: Insert
220: Support Holder
221: 1st support holder
221a: First insertion groove
222: 2nd support holder
222a: 2nd home section
224: Home 1
300: Fastening member
400: Branch Clamp
500: No wire

Claims (22)

Support (100);
A support clamp (200) connected to the upper and lower sides of the above support (100) and through which a processing wire (10) passes;
A fastening member (300) that is coupled to the above support clamp (200) and secures the above processing wire (10); and
It includes a branch clamp (400) that is fixed at one end to the above support clamp (200) and is provided so that a branch line (20) branched from the above-mentioned overhead line (10) is branched in the air.
The above support clamp (200) further includes an insertion portion (210) provided at one end to be coupled to the support (100),
The above support clamp (200) is formed integrally with the insertion portion (210) and further includes a support holder (220) having a first groove portion (224) formed into which the processing wire (10) is inserted inside.
The above support clamp (200) further includes a first fixing member (230) that extends outwardly by being connected at one end to the support holder (220) and moves forward or backward to maintain the processing wire (10) in a fixed state.
The above support holder (220) includes a first support holder (221) formed integrally with the insertion portion (210), and a second support holder (222) positioned facing the first support holder (221) and coupled with the first fixing member (230).
A low-voltage overhead line branch device in which the second support holder (222) has first protrusions (222b) formed on the upper and lower sides of the opposing surface facing the first support holder (221), respectively, protruding outward.
In the first paragraph,
The above support (100) is a low-voltage overhead line branch device made of a non-metallic material.
delete delete delete In the first paragraph,
A low-voltage overhead line branch device characterized in that the above support holder (220) is opened toward the upper side of the support (100).
delete In the first paragraph,
A low-voltage overhead wire branch device in which a second groove (222a) is formed in the second support holder (222) at a position facing the first groove (224).
delete In the first paragraph,
A low-voltage overhead wire branch device in which a first insertion groove (221a) is formed on the first support holder (221) so that the first protrusion (222b) is inserted into the opposing surface facing the first protrusion (222b).
In the first paragraph,
The above support clamp (200) is a low-voltage overhead line branch device having a connecting port (202) formed to allow the branch clamp (400) to be connected.
In Article 11,
The above branch clamp (400) is a low-voltage overhead line branch device in which a state of being spaced apart at a predetermined interval is maintained via the above support clamp (200) and the wire member (500).
In Article 12,
The above wire member (500) is a low-voltage overhead wire branch device made of insulating material.
In Article 13,
The above wire member (500) is a low-voltage overhead wire branch device extended to a preset length.
In the first paragraph,
The above branch clamp (400) is a low-voltage overhead wire branch device made of insulating material.
In Article 12,
The above branch clamp (400) is a low-voltage overhead line branch device including a branch holder part (410) to which the wire member (500) is connected on one side and through which the branch line (20) passes.
In Article 16,
A low-voltage overhead line branch device in which the branch holder part (410) is extended to a predetermined length and an extension part (412) extended to a predetermined length is formed to guide the movement direction of the branch line (20).
In Article 17,
The above branch holder part (410) is a low-voltage overhead line branch device in which a clamp groove (413) is formed so that the branch line (20) can be inserted.
In Article 18,
A low-voltage overhead line branch device in which the branch holder part (410) further includes a second fixing member (414) provided for fixing the branch line (20) to the upper side of the clamp groove (413). In Article 19,
The above second fixed member (414) is a low-voltage overhead wire branch device having an insertion groove (414b) formed at a position facing the clamp groove (413).
In Article 19,
A low-voltage overhead line branch device in which a pair of bolts extending from the upper surface to the outer surface of the lower surface of the branch holder portion (410) are used for the second fixed member (414).
delete