JPH0474922B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is applicable to an overhead ground wire (hereinafter referred to as a ground wire) between utility poles or steel towers on which a high voltage line (hereinafter also referred to as a live line) is actually energized. Related to overhead ground wire live wire attachment equipment used in construction works such as

(Prior art) Conventionally, for example, when installing a ground wire between utility poles or steel towers on which energized high-voltage lines are installed, so-called ringed ropes with multiple guide rings have been mainly used. has been done. That is, a guide wire is stretched above the high-voltage wire between the utility poles or steel towers, a rope with a ring is attached to the guide wire, and a ground wire or the like is inserted through the guide ring of the rope with a ring. While erecting the ground wire, etc., the looped ropes were sequentially let out.
The guide ring prevents the ground wire and the like from coming into contact with the high voltage line.

(Problem to be Solved by the Invention) However, in the case where the rope with a ring is used, the ground wire, etc. is guided by the guide ring of the rope with a ring. Since the wires are only placed at a predetermined distance from each other, the ground wire, etc. located between the guide rings of the rope inevitably tends to sag, and sometimes the sagging is so severe that it has already been This caused accidents such as coming into contact with live wires that had been installed, and the safety was not satisfactory. In addition, as mentioned above, a large number of guide rings are attached to the guide line each time, which requires a lot of effort.
This inevitably led to deterioration in workability.

Therefore, in view of the above-mentioned conventional drawbacks, the present invention makes it possible to cover the entire length of the ground wire being installed with a protective device in order as the ground wire is being installed, thereby greatly improving the safety of the installation work. The object of the present invention is to provide an overhead ground wire live wire attachment device that obtains the following.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides an installation device for installing an overhead ground wire between utility poles etc. on which live wires are installed, erecting and supporting a guide wire (for example, in this specification, it refers to a rope, etc. that has been stretched in advance between each of the utility poles, etc., and is simply referred to as a guide wire) that is stretched between the utility poles, etc. It consists of a main body, a first guide means installed on the main body and for guiding an overhead ground wire to be erected, and a second guide means for guiding and supplying a protective device surrounding the above-mentioned overhead ground wire, The protective equipment is formed from a long cylindrical sheet member having insulating properties and provided with a fastener means that opens and closes in the longitudinal direction, and the main body is provided with a fastener of the protective equipment supplied from the second guide means. An engaging means for closing the means is provided, and when the overhead ground wire is installed, the overhead ground wire to be installed is guided and supplied by the second guide means from the pre-opened opening part of the protective equipment. The gist of the present invention is that the protector is inserted through the guide wire by the guide means, and the protector is moved along the guide wire together with the overhead ground wire while the fastener means is closed by the engaging means.

(Function) A protective device with an opening in the longitudinal direction is guided and supplied to the guide wire by the second guide means, and an overhead ground wire to be constructed is inserted from the opening part by the first guide means, and the same The above-mentioned protective device is moved along the guide line while closing the opened fastener means with the overhead ground wire, and the above-mentioned overhead ground wire to be installed is connected to a live wire stretched between utility poles or steel towers. It will be constructed above.

(Example) Hereinafter, an example of the present invention will be described in accordance with the drawings.
Explain in detail.

In the figure, 10 is the main body of the mounting device of this embodiment, and a ring-shaped mounting ring 11 is formed at the bottom, which can be mounted on the upper end of the utility pole T on which the live wire W1 is stretched.
A plurality of leg pieces 12 and a strut 12a protrude from the mounting ring 11, and a support arm 13 is horizontally protruded from the plurality of leg pieces 12. An engagement member 14 that engages a movable piece 4a of a fastener member 4 in the protector 1, which will be described later, is provided at the tip of the support arm 13, and a guide roller 15 of a ground wire GW, which will be described later, is rotatable at the rear end. is supported by. Note that a guide line W is attached to the support 12a.
An engagement ring 16 for attachment is provided protrudingly.

Reference numeral 17 indicates that the protective equipment 1, which will be described later, is attached to the support arm 13.
The bracket 18 is a guide member that guides and supplies the guide to the distal end side of the bracket 18, which is approximately U-shaped in plan.
A part of the bracket 18 is fixed to the leg piece 12 in a direction opposite to the direction in which the support arm 13 projects.

Reference numeral 20 denotes a guide member that guides and supplies a ground wire GW, which will be described later, to the tip side of the support arm 13, and includes a substrate 21 whose side surface is approximately U-shaped;
A support plate 21a protrudes horizontally from the support plate 21a, and a guide tube 2 protrudes vertically through the support plate 21a.
2, and the live wire W1 on the utility pole T
The U-shaped board 2 is connected to the crosspiece T1 that supports the
1 is fitted and fixed with bolts or the like.

Protective equipment 1 used in the mounting device of this example
As shown in FIGS. 3 to 5, it consists of a large number of guide rings 2 to 2 forming its framework, a sheet member 3 wound around the outer periphery of the guide ring, and a fastener member 4. It has a long, substantially cylindrical shape and is foldable by the sheet member 3.

Each of the guide rings 2 to 2 is made of an insulating material such as a synthetic resin, and is formed into a substantially C-shaped ring shape, and one side thereof is opened by a predetermined width to form an opening 5.

A large number of these guide rings 2 to 2 are arranged at predetermined intervals with the openings 5 aligned on the same straight line, and a sheet member made of an insulating material is provided over each of the guide rings 2 to 2. 3 is wound along its outer periphery, leaving a portion corresponding to the opening 5, to form a long cylindrical shape. Thus, the sheet member 3 is opened at both end surfaces thereof, and an open section 3a is formed over the entire length in the longitudinal direction at a portion corresponding to the opening section 5.

The sheet member 3 and each of the guide rings 2 to 2 are attached to each other by attaching an appropriate number of locations on the upper and lower portions and the other side of each guide ring to the same sheet member 3 through auxiliary members 6 to 6. They are each fixed by means such as sewing.

Thus, this sheet member 3 is configured to be foldable between each guide ring 2.

A fastener member 4 is attached to both end faces of the release portion 3a of the sheet member 3 over its entire length by means of sewing or the like, and the seat member 3 is secured to the release portion 3a of the sheet member 3 by means of sewing or the like. is configured so that it can be opened and closed. This fastener member 4 is configured to be separable so as to completely open the open portion 3a of the sheet member 3. Furthermore, a holding portion 2a and a holding bolt 2b for inserting and holding approximately the front end portion of the ground wire GW to be installed are formed inside the lower part of the guide ring 2, which is positioned first when looking at the entire protective equipment 1. There is.

It should be noted that when the protective equipment 1 is used, the fastener member 4 is opened and wound by a winding drum means (not shown), and the ground wire GW is also wound by a winding drum (not shown). It is in a wound state by means of a take-up drum.

This embodiment is constructed as described above, and its usage will be explained.

Now, to explain the case where the ground wire GW is installed between the utility poles T on which the live wire W1 is installed, as shown in FIGS. Attach and fix to the upper end. Then, the guide wire W is attached to the engagement ring 16 formed on the support column 12a, and the guide wire W is stretched between the utility poles T. Thereafter, the sheet member 3 opens the fastener member 4 in the open part 3a to release the open part 3a, and the entire protective device 1 in the rolled state by the winding drum means and the fastener member 4 in the open part 3a are opened. The ground wire GW to be installed in a wound state is positioned below the utility pole T on one side.

Then, the protector 1 is pulled upward along the utility pole T, passed through the large-diameter guide roller 19 of the guide member 17, and positioned at the tip of the support arm 13, and then connected to the first guide ring 2 from the side with the guide line. After passing through W, the fastener member 4 in the open state is brought into a partially closed state, and its movable piece 4a is engaged with the engaging member 14 of the support arm 13. Furthermore, one end of the ground wire GW to be constructed is attached and fixed to the crosspiece T1 of the utility pole T, and is inserted into the guide tube 22 of the guide member 20, and is also inserted into the holder 1 from the open part via the guide roller 15, It is fixed to the holding portion 2a of the first guide ring 2 with a holding bolt 2b, and its end is tied to a tow rope attached to the first guide ring 2.

So, when you pull the towline from the other side of the utility pole,
In response to the tension, the upper part of the guide ring 2 of the protector 1 is engaged with and held by the guide line W in the space formed by the sheet member 3, and moves along the guide line W, and the lower part of the protector 1 is moved along the guide line W. While holding the ground wire GW to be constructed, the ground wire GW is sequentially unwound from the winding drum means via the large-diameter guide roller 19 of the guide member 17, and at the same time, the fastener member 4 is pulled out by the movable piece 4a that is locked. Since the opening portions 3a of the sheet member 3 are sequentially closed, the opening portions 3a of the sheet member 3 are sequentially closed.

In the feeding operation of this protective equipment 1,
Each guide ring 2 of the protective device 1 is sequentially engaged and held with respect to the guide wire W using its opening 5, and the ground wire GW to be installed is fed out from the winding drum means and The guide tube 22 and the guide roller 15 are sequentially positioned from the open section 3a of the sheet member 3 into the space thereof.

In this way, connect the ground wire GW to the live wire W
1, and the mounting device of this example is installed while protecting the entire ground wire GW to be installed by sequentially covering it with the protector 1, so that the ground wire GW does not hang down. This is to prevent accidents such as contact with the live wire W1. In addition, even if the fastener member 4 in the protective equipment 1 should break down, the lower part of each guide ring 2 is covered by the sheet member 3, so as mentioned above, contact with a live wire due to hanging of the ground wire GW, etc. This is to prevent this from happening.

In addition, in this example, the protective equipment 1 used
, a holding part 2 is attached to the upper part of the inner surface of the first guide ring 2.
It is also possible to form a retractable ring part for guiding the guide wire W similar to that in a, and to guide the bus W through the guide wire W through the retractable ring part. A guide roller may be provided to guide the guide line W along the guide roller within the open/close ring portion.

Further, in this embodiment, the case where the protective equipment is used for constructing the ground wire GW has been described, but it goes without saying that the protective equipment can also be used as a protective equipment for the high voltage line when the high voltage line is constructed.

(Effects) As described above, the present invention allows the ground wire to be installed to be installed while sequentially covering its entire length with a protective equipment, and the safety of the installation work can be greatly improved. It has the advantage of being simple and easy to handle, saving the labor of working personnel, and reliably improving workability.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, with FIG. 1 being a front view showing the entire mounting device of this example, and FIG. 2 being a plan view.
FIG. 3 is a front view showing the entire protective equipment, FIG. 4 is a sectional view taken along the line -- in FIG. 3, and FIG. 5 is a partially cutaway perspective view showing the state in which it is used. DESCRIPTION OF SYMBOLS 1... Protective equipment, 3... Sheet member, 4... Fastener member, 10... Mounting device main body, 17... Guide member, 20... Guide member, W... Bus bar, W1...
...Live wire, GW...Ground wire.

Claims (1)

[Claims] 1. A mounting device for installing an overhead ground wire between utility poles, etc. on which live wires are installed, which includes a main body for installing and supporting a guide wire that is installed on the utility pole, etc. and stretched between the utility poles, etc.; The first guide means is installed in the main body and guides and supplies an overhead ground wire to be erected, and the second guide means guides and supplies a protective device surrounding the above-mentioned overhead ground wire. , formed from a long cylindrical sheet member having insulation and provided with a fastener means that opens and closes in the longitudinal direction, and the main body is provided with a fastener means of the protective equipment supplied from the second guide means. An operating engagement means is provided, and when the overhead ground wire is installed, the overhead ground wire to be installed is guided and supplied by the second guide means from the opening portion opened in advance of the protective device, and the overhead ground wire is moved by the first guide means. 1. An overhead ground wire live line attachment device, characterized in that the above-mentioned protective device is inserted through the overhead ground wire and moved along the guide wire while closing the fastener means by engaging means.