JPS644979Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a scaffold that is used by being attached to an insulator and a power transmission line during power line tensioning work.

Conventionally, this type of work scaffolding has a structure in which one side of the scaffold is fixed to a steel tower and the other side is hooked to a power transmission line, allowing work to be carried out near the insulator. However, in recent years, as power transmission capacity has increased, equipment such as steel towers has become larger, and the length of insulator chains has also become longer. For this reason, conventional work scaffolding had to be quite long in order to be attached to the steel tower, making it unstable to work near the tip of the insulator or the tower arm, and there was a problem with strength, so it was necessary to add weight to reinforce it. It had the disadvantage of being heavy.

The purpose of the present invention is to improve such drawbacks and provide a stable scaffold for tensioning work that can be attached to an insulator.An embodiment of the present invention is shown in the accompanying drawings. An example will be detailed.

As shown in the figure, the present invention has a semicircular fitting part 1 at the lower center, a chain insertion hole 27 and a locking hole 28 at the upper part.
A side plate 7 having mounting bolts 5 and an oblong sliding hole 6 on the outer side of a plurality of frames 4 to which chain fasteners 3 having chains 2 are attached.
The insulator mounting body 9 is formed by attaching the frames 4, 4 and slidably connecting the frames 4 with a horizontal rod 8 having a pin 11 at both ends for preventing removal. In addition, there is an oval mounting hole 10 at the top and an angle adjustment bolt 12 at the bottom.
The mounting plate 13 provided with the above is attached to the upper part of a plurality of columns 14, and the two columns 14, 14 are connected with a horizontal beam to form a column body 15, and a frame 16 arranged in parallel.
A ladder body 24 is formed by providing a stopper 19 covered with a rubber cover for protecting jumper wires at one end of a ladder 18 having a horizontal bar 17 in the middle thereof, and a hook member 20 at the other end. This hooking member 20 is a hook 21 for hooking a power line to a rope 23 attached to a ladder 18.
and a third ring 22 for length adjustment. The column body 15 is attached to the tips of the frames 16, 16 of the ladder body 24 so as to be rotatable back and forth and left and right by a universal joint 31.
and the ladder body 24 are connected by auxiliary pipes 26 each equipped with a length adjuster 25, and the mounting bolts 5 of the insulator mounting body 9 are inserted into the mounting holes 10 of the mounting plate 13 of the column body 15, and the mounting plate Bolt 1 installed in 13
It has a structure in which the two are connected and fixed by tightening the two.

To use the present invention, first, attach the fitting part 1 of the insulator mounting body 9 to the neck of the insulator 30 near the tip of the insulator chain.
1 from above, chain 2 and insulator 3
Wrap it around the neck of 0 and insert it into the chain insertion hole 27,
Fit into the link locking hole 28 of the chain 2 with an appropriate length. Then, by tightening the chain fastener 3, the insulator attachment body 9 is attached to the insulator. After attaching the insulator mounting body 9 to the insulator 30 as described above,
The power transmission line 29 is cordoned off. Then, in this state, the ladder body 24 is lifted up, and the hook member 2 provided at one end of the ladder body 24 is lifted up.
0 hook 21 to the power transmission line 29, insert the mounting bolt 5 of the insulator mounting body 9 into the mounting hole 10 of the mounting plate 13 of the support column 15 provided at the other end, and attach the mounting plate 1.
By tightening the bolt 12 provided at 3, the ladder body 24 and the insulator attachment body 9 are connected. And the auxiliary pipe 2 connecting the ladder body 24 and the support column 15
The length adjusting tool 25 of 6 and the third ring 22 for adjusting the length of the hook member 20 suspending the ladder body 24 are adjusted so that the ladder body 24 is set almost horizontally. In this state, the worker performs work such as clamping and line work on the upper part of the ladder body 24.

In this way, the present invention is relatively short because it is attached to the insulators and power lines, rather than being directly fixed to the steel tower members like conventional work scaffolding. It is stable and can be used safely because it is fixed by placing it on top. In addition, since a contact stop 19 covered by a rubber cover is provided at the end of the ladder body 24, the jumper wire will not be damaged even if it comes into contact with the contact stop 19 during jumper wire installation work after wire tensioning work. . Furthermore, since the present invention has a structure in which the insulator mounting portion 9 and the ladder body 24 can be separated, mounting or removal work can be easily performed. In addition, the pillar body 15
The ladder body 24 moves in any direction, forward, backward, left or right.
The installation work of attaching the insulator 30 to the insulator 30 or the removal work can be easily performed.

[Brief explanation of the drawing]

Figure 1 is a front view of the work scaffold of the present invention, Figure 2 is its top view, Figure 3 is its left side view, and Figure 4 is its left side view.
The figure is a front view of the insulator mounting member, FIG. 5 is a right side view thereof, and FIG. 6 is a plan view thereof. In the figure, 1 is a fitting part, 2 is a chain, 3 is a chain fastener, 4 is a frame, 5 is a mounting bolt,
6 is a sliding hole, 7 is a side plate, 8 is a horizontal rod, 9 is an insulator mounting body, 10 is a mounting hole, 12 is a bolt, 13 is a mounting plate, 14 is a column, 15 is a column body, 16 is a frame, 17 18 is a horizontal bar, 18 is a ladder, 19 is a stopper, 20 is a hook member, and 24 is a ladder body.

Claims (1)

[Scope of utility model registration request] A semicircular fitting part 1 at the lower center and a chain insertion hole 27 and a locking hole 28 at the upper part are provided in communication with each other, and a chain fastener 3 having a chain 2 is attached to the outer side of a plurality of frames 4. A mounting bolt 5 and a side plate 7 having an oblong sliding hole 6 are attached to the frame 4, and the frames 4 are slidably connected by a horizontal rod 8 having pins 11 at both ends to prevent the insulator from coming off. A mounting plate 13 with an oblong mounting hole 10 at the top and an angle adjustment bolt 12 at the bottom is attached to the support 14.
A ladder 18 is attached to the upper part of the frame 16, and the two pillars 14, 14 are connected with a horizontal crosspiece to form a support body 15, and a horizontal crosspiece 17 is provided in the middle part of a frame 16 arranged in parallel.
A ladder body 24 is formed by providing a stop 19 covered with a rubber cover for protecting the jumper wire at one end and a hook member 20 at the other end, and a strut body is provided at the tip of the frames 16, 16 of the ladder body 24. 15 is rotatably attached, and the support 15 and the ladder 24 are connected by an auxiliary pipe 26 each having a length adjuster 25, and the mounting hole 10 of the mounting plate 13 of the support 15 is connected.
A working scaffold characterized by a structure in which a mounting bolt 5 of an insulator mounting body 9 is inserted into the insulator mounting body 9, and a bolt 12 provided on a mounting plate 13 is tightened to connect and fix the two.