CN220358688U - Live conductor distribution tool - Google Patents

Abstract

Provide a live conductor distribution tool that is not affected by rain and stabilizes electrically interrupted distribution conditions. The live conductor distribution tool (1) includes a wire puller (2) and two wire catchers (4). The cable puller (2) has a telescopic mechanism of a telescopic cylinder structure in which a rod body (2b) is accommodated in a cylindrical body (2a). The rod body (2b) constituting the wire puller (2) is provided with a gripping portion (10) integrally formed with the wire holder (6) that holds the wire (200). On the other hand, a gripping portion (12) is provided on the cylindrical body (2a) side. An insulator (8) for blocking rainwater flowing on the rod body (2b) is provided near the gripping portion (10).

Description

Live conductor distribution tool

Technical field

The utility model relates to a live conductor distribution tool used in the live conductor distribution operation in the uninterruptible power supply project of erection and maintenance of electric wires.

Background technique

During the cutting operation of electric wires in uninterruptible power supply engineering, a live conductor distribution tool is used so that the ends of the cut electric wires do not come into contact with each other. Most live conductor distribution tools have: a wire grabber to grab the wire; a wire puller to pull the grabbed wire closer; and a wire hold to hold the wire if it is pulled closer and flexes or is cut and becomes unstable. Retaining parts.

FIG. 6 is a diagram showing a conventional live conductor distribution tool 100. The live conductor distribution tool 100 is configured to include the portion of the electric wire 200 to be cut between the two wire grabbers 102 . Furthermore, by shrinking the wire puller 101 to which the two wire grippers 102 are connected, a bend is formed in the electric wire 200 . The electric wire 200 is cut in a bent state, and is set in a separated state by the two electric wire holders 103 so that the cut ends do not contact each other.

By using the live conductor distribution tool 100 as described above, it is possible to prevent electrical accidents during uninterruptible power supply projects and to perform operations safely.

The above-mentioned live conductor distribution tool is described in Patent Document 1.

existing technical documents

patent documents

Patent Document 1: Japanese Patent Application Publication No. 2008-206254

Utility model content

Technical problems to be solved by utility models

However, even when a live wire distribution tool is used, there is a possibility that rainwater may flow through the wire puller during work on a rainy day, causing the wire puller to become energized.

Therefore, in the present invention, it is an object to provide a live conductor distribution tool that is not affected by rainwater and can stabilize the distribution state of the electrically cut off.

Technical solutions adopted to solve technical problems

In order to achieve the above purpose, the live wire distribution tool of the present invention is used in uninterruptible power supply projects, and is characterized by including: a wire puller, the above-mentioned wire puller has a telescopic cylinder structure for accommodating a rod body inside the cylindrical body; two A wire grabber, the two wire grabbers are respectively connected to the two ends of the wire puller and grasp the wire; a wire holder, the wire holder is installed on the wire puller and maintains the bent wire; and is used for cutting water. two eaves portions, the two eaves portions are installed on the rod body at intervals; and a waterproof portion, the waterproof portion is provided between the two eaves portions on the rod body.

Utility model effect

As described above, according to the live conductor distribution tool of the present invention, the flow of rainwater is cut off by the two water-cutting eaves provided on the rod body constituting the telescopic mechanism of the wire puller. Accordingly, even when working on rainy days, the flow of rainwater can be cut off on the rod body to prevent the conduction of electricity between the distributed electric wires. In addition, since the waterproof portion is provided between the two eaves portions, directly falling raindrops can be prevented from connecting with each other. This makes it possible to more reliably maintain the insulation state of the area formed between the two eaves.

Description of the drawings

FIG. 1 is a front view of a live conductor distribution tool according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the live conductor distributing tool of FIG. 1 in use.

Fig. 3 shows the insulator on the cable puller. Fig. 3(a) is a front view and Fig. 3(b) is a perspective view.

Fig. 4 shows the electric wire holder and the gripping portion on the rod body. Fig. 4 (a) is a front view and Fig. 4 (b) is a perspective view.

Fig. 5 shows the gripping portion on the cylindrical main body, Fig. 5 (a) is a front view, and Fig. 5 (b) is a perspective view.

FIG. 6 is a diagram showing a conventional live conductor distribution tool.

Detailed ways

Hereinafter, the live conductor distribution tool according to the embodiment of the present invention will be described using the drawings.

FIG. 1 is a front view of the live conductor distribution tool 1 according to the embodiment of the present invention. The electric wire 200 to be worked is indicated by a dotted line.

The cable puller 2 has a telescopic cylinder structure composed of a cylindrical main body 2a and a rod body 2b accommodated in the cylindrical main body 2a. A wire gripper 4 for gripping the electric wire 200 is connected to both ends of the wire puller 2 respectively.

The wire gripper 4 has a structure that increases the gripping force of the electric wire 200 by being pulled toward the wire puller 2 side.

The wire holder 6 for holding the wire 200 is respectively attached to the cylindrical main body 2a and the rod body 2b of the wire puller 2. The electric wire holder 6 is used in order to stably hold the bent end portion of the electric wire 200 before cutting and the electric wire 200 after cutting. In addition, it is also used to distribute the ends of the cut electric wire 200 to each other. If the cylindrical main body 2a and rod body 2b of the wire puller 2 are centered and the cut ends are spaced apart from each other in the opposite pole direction by the electric wire holder 6, contact during work can be prevented, thereby enabling safe work.

In addition, gripping portions 10 and 12 are respectively provided on the cylindrical main body 2a and the rod body 2b of the cable puller 2. A gripping portion 10 is provided in the rod body 2b at a position close to the connection side connected to the thread catcher 4, and a gripping portion 10 is provided in the cylindrical body 2a at a position close to the connection side connected to the thread catcher 4. Department 12. These gripping parts 10 and 12 are configured to be easily gripped by a gripping tool (to be described later using FIG. 2 ) such as a vise for remote operation. In addition, the gripping portion 10 has a structure that can be formed integrally with the electric wire holder 6 .

FIG. 2 is a perspective view showing the live conductor distributing tool 1 of FIG. 1 in use. In contrast to FIG. 1 , the electric wire 200 is shown as a solid line, as is the gripping tool 201 for supporting the live conductor distribution tool 1 . In FIG. 2 , the state in which the two gripping tools 201 grip the gripping parts 10 and 12 respectively and the electric wire 200 is accommodated in the two electric wire holders 6 is shown. The two wire grabbers 4 grab the wire 200 respectively. The live conductor distribution operation using such a live conductor distribution tool 1 is as follows.

First, two operators respectively support the live conductor distribution tool 1 with the gripping tool 201 and arrange the electric wire 200 to be accommodated in the electric wire holder 6 . In this case, there may be a case where the electric wire 200 is accommodated in the wire catcher 4 at the same time, or a case where the electric wire 200 is temporarily accommodated in the wire holder 6 and then the electric wire 200 is accommodated in each wire catcher 4 method.

Next, by contracting the wire puller 2 , the electric wire 200 grasped by the wire catcher 4 is pulled closer to the center side to form a deflection (dent). At this time, the electric wire 200 is stably held by the electric wire holder 6 .

The electric wire 200 thus formed to be bent is cut. In this case, there is a method of cutting after peeling off the covering of the cut portion, and a method of peeling off the covering before reconnecting after cutting. In the former case, a stripper capable of peeling off the coating of the central portion of the electric wire 200 is required. In addition, in the latter case, a stripper capable of peeling off the coating from the end is required.

The ends of the cut electric wires 200 are isolated into mutually different states facing the opposite pole position by rotating one of the electric wire holders 6 about the axis center of the wire puller 2 . By isolating in this way, accidents caused by power supply can be prevented, and work can be performed safely. Here, when the electric wire holder 6 is rotated around the axis of the wire puller 2 , the grasping parts 10 and 12 are grasped by the grasping tool 201 , so that the work can be performed stably.

After the operation, in the case of connecting the ends of the cut electric wires 200 to each other, the reverse process to the above-mentioned steps is performed.

First, one side of the electric wire holder 6 holding the end portion of the electric wire 200 is rotated around the axis of the wire puller 2 and returned to the original position.

Then, the ends of the electric wires 200 whose coating has been peeled off are connected to each other, and the coating is repaired. In the repair of this coating, a sleeve cover that can be absorbed by shrinkage is often used.

After being connected in this way, the telescopic mechanism composed of the cylindrical main body 2a and the rod body 2b of the wire puller 2 is gradually stretched until the tension returns to the electric wire 200.

After the tension is returned to the wire 200, the grip achieved by the wire catcher 4 is released and the wire holder 6 is detached from the wire 200.

Next, the structure of each part is explained.

Figure 3 shows the insulator 8 on the cable puller 2. (a) of FIG. 3 is a view seen from the front side of the insulator 8, and (b) of FIG. 3 is a perspective view. In FIG. 3(a) , for convenience of explanation, the waterproof portion 8 b that has been subjected to waterproof processing is hatched to distinguish it from other portions.

The two eaves portions 8a constituting the insulator 8 are arranged facing each other so as to sandwich the waterproof portion 8b inside. A groove is formed on the outer periphery of each eaves portion 8b, and is configured so that rainwater flowing along the rod body 2b of the cable puller 2 (see Fig. 1) does not pass through the inner waterproof portion 8b. That is, a structure is formed in which rainwater flowing and spreading from the rod body 2b along the outer surface of the eaves 8a collects in the groove formed on the outer periphery of the eaves 8a and easily drips downward. In addition to such a structure of the eaves portion 8a, the insulator 8 of this embodiment is provided with a waterproof portion 8b inside. Since the waterproof portion 8b prevents raindrops from spreading over a wide range, it is possible to prevent rainwater from continuously connecting between the two eaves portions 8a. In this way, since the transmission of rainwater is doubly prevented, it is possible to reliably prevent the conduction of electricity on both sides of the wire puller 2 even when working on rainy days.

Fig. 4 shows the electric wire holder 6 and the gripping portion 10 on the rod body 2b of the wire puller 2 (see Fig. 1). (a) of FIG. 4 is a front view, and (b) of FIG. 4 is a perspective view. As described above, the gripping portion 10 is formed with the wire holder mounting groove 10b so that the wire holding portion 6 can be integrally mounted. Furthermore, in addition to the two flanges 10a forming the electric wire holder mounting groove 10b, a flange 10a is also formed on the end portion of the side gripped by a gripping tool or the like. By providing these flanges 10a, the swing of the wire holder 6 in the telescopic direction relative to the wire puller 2 becomes stable. In addition, when gripping is performed using the gripping tool 201 or the like shown in FIG. 2 , even when the gripping tool 201 is tilted relative to the cable puller 2 , the movement can be restricted by the flange 10 a. This allows the gripping tool 201 to work safely without being detached from the gripping part 10 . In remote operation, since the feeling of grasping is not easily transmitted from the grasping tool 201 to the operator, the grasping force may be partially lost without the operator paying attention. However, even in this case, the restriction by the flange 10a prevents slipping and falling off, so safety can be ensured.

As shown in FIG. 4( b ), the electric wire holder 6 can be widely opened laterally by the closing member 7 provided so as to be slidable up and down. Since the eye nut 7a is provided above the closure 7, the opening and closing operation can be easily performed by hooking it to a remote operation tool. A through hole 7b is formed in the closure 7 so as to extend in the longitudinal direction. The guide pin 6a of the electric wire holder 6 is disposed to penetrate the through hole 7b and is slidably held in the closure 7 and prevents the closure 7 from falling off. The closure 7 stabilizes the sliding direction by the guide pin 6a and the guide groove 6b formed below the guide pin 6a. The lower end of the closing member 7 is fixed by the fixing pin 6c, and the closed state is stable. The fixing pin 6 c may be a screw that fastens the lower end of the closure member 7 , or a plunger that applies pressure to the lower end of the closure member 7 .

FIG. 5 shows the gripping portion 12 on the cylindrical main body 2a of the cable puller 2 (see FIG. 1). (a) of FIG. 5 is a front view, and (b) of FIG. 5 is a perspective view. Here, for convenience of explanation, structures other than the gripping portion 12 are shown and distinguished by dotted lines.

The gripping part 12 is formed in a cylindrical shape covering the cylindrical body 2a. Like the grip portion 10 shown in FIG. 4 , the grip portion 12 is also formed with a flange 12 a. Due to this configuration, when gripping with the gripping tool 201 shown in FIG. 1 , even when the gripping tool 201 slides, the flange 12 a is restricted by the end portion, so the operation is stable.

The above-described structure is an example of the present invention, and the following modifications are also included.

(1) In the above embodiment, a structure in which a groove is formed on the outer periphery of the eaves 8 a constituting the insulator 8 is taken as an example. However, this slot is not a necessary configuration.

(2) In the above-described embodiment, a structure is shown as an example in which the eaves portion 8a and the waterproof portion 8b constituting the insulator 8 are arranged to be connected. However, the eaves portion 8a and the waterproof portion 8b do not need to be formed integrally. What is necessary is that the waterproof part 8b is disposed between at least the pair of eaves 8a, and a gap may be formed between the eaves 8a and the waterproof part 8b.

(3) In the above-mentioned embodiment, the structure is shown as an example in which the closing member 7 of the electric wire holder 6 is opened by sliding upward. However, it may be a structure that is opened by sliding downward. In addition, instead of sliding, an opening and closing mechanism that rotates around the guide pin 6a may be used.

Symbol Description

1 live conductor distribution tool;

2 cable puller;

2a cylindrical body;

2b rod body;

4 thread catcher;

6 wire retainers;

6a guide pin;

6b guide groove;

6c fixing pin;

7 closure;

7a eye nut;

7b through hole;

8 insulator;

8a eaves;

8b waterproof part;

10 gripping part;

10a flange;

10b Wire retainer installation slot;

12 gripping part;

12a flange;

100 live conductor distribution tool (existing);

101 cable puller (existing);

102 thread catcher (existing);

103 Wire retainer (existing);

200 wire;

201 Gripping tools.

Claims (1)

1. A live conductor distribution tool, which is used in uninterruptible power supply projects, and is characterized in that it includes: A cable puller having a telescopic cylinder structure in which a rod is accommodated inside the cylindrical body; Two wire grabbers, the two wire grabbers are respectively connected to the two ends of the wire puller and grasp the wire; a wire holder installed on the wire puller and retaining the flexed wire; Two eaves for cutting water, the two eaves are installed at intervals on the rod body; and A waterproof part is provided between the two eaves on the rod body.