KR20210136196A - steel crossarm adapter for live wire working - Google Patents

Abstract

The present invention relates to a support steel cross-arm adapter for live wire work. More specifically, the present invention is invented to maintain the installation state of the support steel cross-arm stably and closely in a support holder that is provided on an end of a work vehicle in process of transmission and distribution wiring construction, such as replacement of steel cross-arm of a pin type electric pole, LP replacement, and wire movement of an extra-high voltage distribution line in a live wire state. A configuration according to the present invention includes: a body (10) including a rectangular hole (14) that is provided vertically inward by connecting vertical plates (11), which has a window (12) pierced thereto, on front, rear, left, and right sides in a rectangular frame shape, and guiding a vertical bar (6) of a support iron cross-arm (5), in which wire fixing holders are installed, so as to penetrate therethrough; guide rollers (20) installed via shafts to be rotatable at positions of the window (12) perforated in the vertical plates (11) of the body (10); an elastic member (30) having one end fixed to the vertical plate (11) of the body (10) in the shape of a plate with a certain thickness and having an elastic force and a contact position adjusted through an adjustment bolt (31); and a stopper (40) installed slidably along a guide groove (13) that is provided in a "reverse-L" shape at an upper end of the vertical plate (11) of the body (10), and elastically supported by a spring (41).

Description

Auxiliary arm iron adapter for live wire work {steel crossarm adapter for live wire working}

The present invention relates to an adapter of an auxiliary arm bar for live wire work, and more particularly, a sub arm bar provided at the end of a work vehicle in the transmission and distribution wire construction process, such as replacement of a pin pole bar of an extra-high voltage distribution line in a live state, LP replacement, and wire movement. It was invented so that it can be stably and tightly installed in the support holder.

In general, the power system is divided into power generation, transmission and distribution.

Electric power distribution means supplying electric power to consumers, and wiring devices are installed on electric poles.

Wiring fixtures include arm irons, insulators, and the like.

Wancheol is fixedly installed on the upper side of the electric pole in a direction perpendicular to the electric pole, and is formed of an insulating material on the upper part, and an insulator to support the electric wire is installed.

In order to replace the arm iron including the insulator installed on the pole, an auxiliary arm iron equipped with a wire fixing holder was installed on the pole.

With the wire wrapped around the inside of the wire fixing holder, the auxiliary arm iron is moved upward using a high-place work vehicle for live wire work, and the working space is secured while the wire is lifted, and the existing arm iron and insulator are replaced. .

The lower part of the wire fixing holder is fitted with a fixing body for fixing the position while being inserted into the auxiliary arm, and a fastening bolt is screwed on the lower part of the fixed body, and the installation position is on the auxiliary arm formed long in the longitudinal direction by the tightening operation. After adjusting, the position is fixed so that it does not flow.

The wire fixing holder has a "∪" shape with an open top, and is hinge-coupled to the upper end of one side so that the lever is rotatable, and the other side is provided with a fitting hole and has a structure in which the lever can be inserted and assembled.

Accordingly, when the auxiliary arm is raised while the electric wire is positioned inside the electric wire fixing holder in a state in which the lever is rotated, the electric wire can be lifted.

1 is a photograph showing the work process of transmission and distribution wiring in a live state.

As shown in FIG. 1, a support holder is provided at the end of the high-place work vehicle dedicated to live wire wiring work, and the auxiliary arm iron, which is approximately T-shaped, penetrates the support holder and is prevented from being separated to the lower part by the wire under its own weight. do.

Several holders for fixing wires are installed on the upper part of the auxiliary arm.

Conventionally, the vertical bar of the auxiliary arm has been penetrated into the inside of the support holder provided at the end of the high-place work vehicle as it is, relying on a wire to prevent separation.

The support holder has a square hole drilled along the vertical bar shape of the auxiliary arm.

The size of the square hole drilled in the support holder and the vertical bar of the auxiliary arm are not standardized.

Therefore, for the free installation and replacement of the auxiliary arm, the square hole drilled approximately perpendicularly to the vertical bar and the support holder is generally manufactured loosely.

Auxiliary arm iron, which is penetrated through the square hole of the support holder and the wire fixing holders are installed in the upper horizontal part, continues to shake due to the loose tolerance, and rattling noise is also generated.

Therefore, during the process of installing or separating the electric wire in the fixed holder, and during the live wire wiring construction process such as lifting the electric wire, precise work was impossible, and there were problems such as making the operator feel anxious due to shaking and noise.

Republic of Korea Patent Registration No. 10-2079472 (Registration Date February 13, 2020) Republic of Korea Patent Registration No. 10-925068 (Registration Date October 28, 2009) Republic of Korea Patent Registration No. 10-1873421 (Registration Date June 26, 2018)

The present invention is intended to solve the above problems, and in detail, an adapter for an auxiliary arm iron for live wire work that enables quiet and precise live wire work without fear of flowing or noise during operation between the vertical bar of the auxiliary arm and the vertical bar of the support holder. is to provide

Another object of the present invention is that the auxiliary arm bar for live wire work can be operated smoothly and smoothly even when the vertical bar of the auxiliary arm bar is inserted into the support holder for installation or separated for replacement, thereby promoting convenience and safety of work. of adapters are provided.

The object of the present invention as described above is that the vertical plates 11 through which the window 12 is pierced are connected in a front and rear left and right square frame shape to provide a square hole 14 vertically inside, and the square hole 14 A body (10) guiding the vertical bar (6) of the auxiliary arm (5) through which the wire fixing holders are installed;

and guide rollers 20 which are freely rotatably installed at the positions of the windows 12 drilled in the vertical plates 11 of the body 10;

An elastic member 30 having one end fixed to the vertical plate 11 of the body 10 in the shape of a plate of a certain thickness and having an elastic force and a contact position adjusted through an adjustment bolt 31;

It is characterized in that a stopper 40 is included in the upper end of the vertical plate 11 of the body 10 to prevent the body 10 from being separated to the lower part of the support holder 2 by its own weight.

Here, at the lower end of the vertical plate 11, the locking plate 50 is fixedly installed to protrude outward.

The elastic member 30 is fixedly installed on the vertical plate 11 through a fixing bolt 32 .

The stopper 40 is installed to be slidably moved along the guide groove 13 provided in a “┙” shape, and is installed to be elastically supported by a spring 41 .

The vertical plates 11 and the locking plates 50 are fastened and fixed with bolts 16 .

According to the present invention as described above, it is installed between the support holder installed at the end of the high-place work vehicle for wire work in a live wire state and the vertical bar of the auxiliary arm to prevent shaking of the auxiliary arm or noise in the process of replacing the electric wire, etc. Quiet and precise live wire work is possible.

In addition, it can be operated smoothly and smoothly when entering to install the vertical bar of the auxiliary arm into the inside of the adapter mounted on the support holder or removing it for replacement, which has the effect of promoting convenience and safety of work.

1 is a photograph showing a working process through a conventional high-altitude work vehicle for live wire work.
Figure 2 is a perspective view showing the adapter configuration of the present invention.
Figure 3 is a front view showing the adapter configuration of the present invention.
Figure 4 is a side view showing the adapter configuration of the present invention.
Figure 5 is a plan view showing the configuration of the adapter of the present invention.
Figure 6 is a side cross-sectional view partially enlarged by cutting the position of the elastic member of the present invention.
7 is a partially enlarged cross-sectional view showing a state in which the elastic member is adjusted by moving the adjusting bolt back and forth using a wrench tool.
8 is an enlarged cross-sectional view of the main part showing a state in which the stopper is switched.
Figure 9 is an enlarged front view showing a state in which the stopper is moved along the guide groove.
10 is a front view of the guide roller;
11 is a device diagram showing a state in which the adapter of the present invention is installed between the support holder and the vertical bar of the auxiliary arm.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and are common in the art to which the present invention pertains. It is provided to fully inform those with knowledge of the scope of the invention, and the present invention is only defined by the scope of the claims.

In addition, the terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention.

As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, "comprises" and/or "comprising" does not exclude the presence or addition of elements other than those mentioned.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs.

Hereinafter, in order to describe the present invention in more detail, embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

The adapter for live wire work of the present invention is interposed between the auxiliary arm iron 5 and the support holder 2 so that each part can be removed from the cause such as being severely shaken or noise generated in the work process due to play.

In some cases, the auxiliary arm (5) is equipped with a single wire fixing holder on the upper end of the vertical bar (6), and a plurality of wire fixing holders are mounted by connecting a T-shaped horizontal bar to the top of the vertical bar (6). Therefore, it is possible to carry out various tasks by lifting several wires at the same time.

The wire fixing holder has a structure in which a fixing body for attaching to the auxiliary arm convex (1) and a lever member are opened and closed at the opening position of the holder frame body fastened to the upper part of the fixing body (10).

Therefore, after the electric wire is mounted inside the holder frame with the lever member open, the lever member is rotated to lift the extra-high voltage wire in the closed state in the closed state. Transmission and distribution wiring work is performed.

A high-altitude work vehicle is required for this work, and at the end of the boom of the high-altitude work vehicle, a support holder (2) is installed to control the height and the left and right rotational position with the auxiliary arm iron (5) mounted (Fig. 11)

This support holder (2) has a square hole drilled so that it can be installed in a state where the vertical bar (6) of the auxiliary arm iron (5) is penetrated. It is installed between and the vertical bar (6) to ensure that the installed state can be maintained closely without play.

The adapter of the auxiliary arm iron for live wire work of the present invention for this role is largely composed of a body 10 forming a frame, a guide roller 20, an elastic member 30, and a stopper 40.

The body 10 is made of a metal plate of a certain thickness, and four vertical plates 11 through which the windows 12 are drilled, respectively, are connected in a front and rear left and right rectangular frame shape.

A vertical rectangular hole 14 is provided inside the four vertical plates 11 connected to guide the vertical bar 6 of the auxiliary arm iron 5 to which the wire fixing holders are installed.

The body 10 is mounted inside the support holder 2 provided at the end of the boom 1 of the high-place work vehicle, and the upper end of the support holder 2 is provided by a stopper 40 and a locking plate 50 to be described later. and the lower end, respectively, so that it cannot be moved vertically and can be securely mounted.

In each vertical plate 11 constituting the body 10, windows 12 are drilled in a state of maintaining a distance up and down, and guide rollers 20 are installed rotatably to the position of the window 12, respectively. .

10 is a front view of the guide roller 20, the shaft 21 having a diameter on both sides is freely assembled into the vertical plate 11, and has a diameter larger than the thickness of the vertical plate 11 The central guide roller 20 is axially installed in a state that slightly protrudes into the inside of the square hole 14 .

Therefore, when the vertical bar 6 of the auxiliary arm 5 is inserted into the square hole 14, the guide roller 20 is in close contact with the upper and lower two places at approximately the middle position of the vertical bar 6, so the vertical bar (6) can be prevented from flowing.

And, since the guide roller 20 is freely rotatably installed, the vertical bar 6 comes into contact with it when it enters from the top to the bottom through the square hole 14 and then rotates so that the movement can be made smoothly.

In addition, even when the vertical bar 6 is to be separated from the lower part to the upper direction, it can be moved smoothly while in contact with the guide roller 20 and rotated.

On the other hand, the elastic member 30 is installed on one side of the guide roller 20 is installed, and the elastic force and the contact position are adjusted through the adjusting bolt 31 .

The elastic member 30 is formed of a plate-shaped spring steel of a certain thickness, and one end is fixed to the vertical plate 11 through a fixing bolt 32 .

Then, the adjustment bolt 31 is screwed to the vertical plate 11 on the other side at a position deviated from the fixing direction of the fixing bolt 32 .

A hexagonal groove is dug in the head direction toward the inside of the square hole 14, and the adjustment bolt 31 is moved forward and backward according to the rotational direction through the L wrench (a).

And, one end of the adjustment bolt 31 is in contact with the inner surface of the elastic member (30).

Accordingly, the lower end of the elastic member 30 protrudes more toward the outside according to the adjustment state for moving the adjustment bolt 31 to finely adjust the contact position as well as the elastic force in contact with the inner wall of the support holder 2 . there will be a number

When the elastic member 30 comes into contact with the inner wall of the support holder 2 due to the elasticity of the elastic member 30, the body 10 is supported so that it does not flow even if a gap is generated in a state in which the body 10 is fitted to the inner wall of the support holder 2 .

A stopper 40 is provided to prevent the body 10 from falling or detaching due to its own weight in a state in which the body 10 is fitted inside the support holder 2 .

That is, a guide groove 13 having a structure in which a vertical hole and a horizontal hole are connected in a "┙" shape is formed at the upper end of the vertical plate 11 of the body 10 .

The stopper 40 is bent in a "B" shape and is installed to be slidably moved along the guide groove 13 , and is elastically supported by a spring 41 at the end thereof.

Therefore, in the assembled state of inserting the rectangular frame-shaped body 10 from the inside of the support holder 2 to the top for the adapter installation according to the present invention, the head of the stopper 40 is in the vertical portion of the guide groove 13 . It is placed in a standing state (FIGS. 3 and 4).

Then, in order to prevent the body 10 from completely entering the end of the support holder 2 and then falling out by its own weight, the stopper 40 is placed along the vertical hole approximately at right angles from the position of the guide groove 13 on the ground. When rotated to the horizontal position, the spring 41 moves along the guide groove 13 to the end along the horizontal hole again due to the elasticity of the spring 41 .

As such, the stopper 40 moved to the end position of the horizontal hole of the guide groove 13 by the spring 41 elasticity cannot be retracted unless an external force is applied, and is also prevented from being erected vertically. ) is caught on the upper end of the support holder 2 to prevent the lowering of the body 10 ( FIGS. 7 and 8 ).

When the body 10 is to be separated from the support holder 2, the stopper 40 is moved in the horizontal direction of the guide groove 13 in the horizontal direction of the guide groove 13 and stood up by a force greater than the elastic force of the spring 41 to release the lock. (10) can be separated toward the bottom.

In this state, since the stopper 40 is supported by the elasticity of the spring 41, it cannot be rotated or moved by a slight impact before the user operates it.

Here, at the lower end of the vertical plate 11, the locking plate 50 is fixedly installed to protrude from both sides toward the outside.

The locking plate 50 is the maximum assembly position by hanging with the lower surface of the support holder 2 when assembling from the bottom to the top to fit the body 10 of the rectangular frame structure into the inside of the support holder 2 . will be limited

Therefore, in the state in which the body 10 is mounted inside the support holder 2, the upper part is caught by the stopper 40, and the lower part is not able to flow up and down because the position is interrupted by the locking plate 50. It is possible to maintain a solid installation state.

The elastic member 30 is positionally fixed to the vertical plate 11 through a fixing bolt 32 .

The above-described vertical plates 11 are connected in a rectangular frame shape and then screwed through a plurality of bolts 16 to maintain the shape of the body 10 .

In addition, the locking plates 50 are positioned at the lower end of the vertical plate 11 and then fastened with bolts 16 .

When the vertical bar 6 of the auxiliary arm 5 is assembled into the body 10, it blocks the fall through the wire 3, and by adjusting the length of the wire 3, the auxiliary arm 5 ) can also be adjusted in height. (FIG. 11)

According to this configuration of the present invention, the vertical bar 6 of the auxiliary arm iron 5 fitted into the body 10 by the guide rollers 20 is supported and limited so that the entry can be made smoothly. .

In addition, the body 10 flows on the inner wall surface of the support holder 2 by the elastic member 30 made of a leaf spring structure in a state to prevent vertical movement by the stopper 40 and the locking plate 50 . It is possible to maintain a tight installation state to prevent it from happening.

In this state, if the auxiliary arm bar (5) installed with the wire fixing holders is moved upwards for transmission and distribution wiring work, such as replacing the insulator including the arm bar for the live wire installed on the electric pole, the wire can be lifted and replaced. there will be a number

The auxiliary arm 5 is a T-shape of a structure in which a vertical bar 6 is connected to the center, and three wire fixing holders are positioned on the horizontal bar while maintaining a distance, respectively, and are mainly used for three-phase live wire work.

In addition, it may be mainly used for one-phase live wire work by fixing and installing one wire fixing holder on the upper part of the auxiliary arm iron (5) made only of the vertical bar (6).

The live wire work is carried out by a work vehicle equipped with a telescopic device of the boom frame (1) structure with one or a plurality of auxiliary arms installed on the auxiliary arm rails 5, respectively, and the auxiliary arm rails are shaken in the process of replacing wires, etc. It is possible to prevent noise and noise in advance, enabling quiet and precise live wire work.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, but this is only for explaining the invention, and various modifications or equivalents from the detailed description of the invention to those of ordinary skill in the art to which the present invention pertains It will be appreciated that one embodiment is possible.

Therefore, the true scope of the present invention should be determined by the technical spirit of the claims.

10 - body
11 - vertical plate
12 - window
13 - Information Home
14 - square hole
20 - guide roller
30 - elastic member
31 - adjusting bolt
40 - stopper
41 - spring
50 - jam plate

Claims (5)

The vertical plates 11 through which the window 12 is pierced are connected in a front and rear left and right rectangular frame shape, and a rectangular hole 14 is provided vertically inside, and the auxiliary wire fixing holders are installed through the rectangular hole 14. A body (10) guiding the vertical bar (6) of the arm (5) through;
and guide rollers 20 which are freely rotatably installed at the positions of the windows 12 drilled in the vertical plates 11 of the body 10;
An elastic member 30 having one end fixed to the vertical plate 11 of the body 10 in the form of a plate of a certain thickness and having an elastic force and a contact position adjusted through an adjustment bolt 31;
Adapter of auxiliary arm iron for live wire work, characterized in that a stopper 40 is installed at the upper end of the vertical plate 11 of the body 10 to prevent the body 10 from being separated into the lower part of the support holder 2 by its own weight. .
The adapter according to claim 1, wherein a locking plate (50) is fixedly installed at the lower end of the vertical plate (11) so as to protrude outward.
The adapter of claim 1, wherein the elastic member (30) is fixed to the vertical plate (11) through a fixing bolt (32).
The adapter of claim 1, wherein the stopper (40) is slidably installed along the guide groove (13) provided in a "┙" shape, and is elastically supported by a spring (41).
The adapter of claim 1, wherein the vertical plates (11) and the locking plates (50) are fastened with bolts (16).

Images