JPH0218881Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is a curing sheet for insulators for power transmission lines, and more specifically, when painting steel towers for installing high-voltage power transmission lines, the invention is intended to prevent paint from adhering to the insulators. This invention relates to improvements in curing sheets used to cover insulators of power transmission lines in order to prevent this.

Conventional technology Steel towers on which high-voltage power transmission lines are installed are repainted periodically (or at any time) to prevent corrosion, but when repainting towers like this, paint spills and splashes occur. If it adheres to the insulators that insulate power lines and steel towers, the insulating effect will be impaired, so the insulators are cured during painting work.

Conventionally, the method of curing an insulator is to cover the insulator with a sheet formed into a rectangular shape, and to hold it together by tying together both ends of a pair of rods attached to both ends of the sheet. method is commonly used.

Problems that the invention attempts to solve However, in the case of the conventional method as mentioned above,
The problem is that it has the following defects.

The ends of the rods are tied together manually, but since insulators for high-voltage power lines are installed over a length of 2 meters or more, even if they are short,
Although the end on the steel tower side can be tied, the end on the side away from the steel tower cannot be tied because it is impossible to reach that part. Therefore,
The sheet is only held in one place on the tower side, and if the wind blows the sheet, it will flip over.

Considering that the work is carried out at heights at the top of steel towers, tying and untying the ends of the rods is extremely dangerous and troublesome.

The present invention is an attempt to improve the above-mentioned conventional problems, and the purpose of the present invention is to make it easy to attach and remove the insulator, and to prevent the insulator from being exposed to wind. To provide a curing sheet that can be installed without being turned over. Further, specific means and actions for solving the above problems are as follows.

Means for Solving the Problems The sheet body consists of a sheet body and fasteners connecting both ends of the sheet body, and the sheet body is formed into a rectangular shape with a sufficient size to cover the insulator.

The fastener is formed by inserting a slider formed by a pair of parallel sleeve tubes into a pair of guide rods formed at both ends of the seat body so as to be able to move forward and backward.

Function By inserting the slider into a pair of guide rods formed at both ends of the sheet body, the curing sheet can be attached to the insulator, and from the state where it is inserted into the guide rods in this way. By pulling out the slider, the curing sheet can be removed.

Embodiments Specific embodiments of the present invention will be described below with reference to illustrative drawings. In Figure 1, A is a steel tower, B is a power transmission line installed on the steel tower A, and C is an insulator for insulation installed between the steel tower A and the power transmission line B. The curing sheet D according to the invention is removably covered. As shown in FIG. 2, the curing sheet D consists of a sheet body 1 and fasteners 2 that connect both ends of the sheet body.
is formed into a rectangular shape with an appropriate length so that it can cover the entire insulator C and its attachment portion.

The fastener 2 is composed of a pair of guide rods 2a, 2a provided at both ends of the seat body 1, and a plurality of sliders 2b, which are slidably inserted into the guide rods 2a, 2a.
A is formed by wrapping both ends of the sheet body 1 around a core material 1' made of a flexible material such as a rope. Also, slider 2
b is formed into an inverted triangular shape with an appropriate length dimension, and a pair of cannula tubes 3, 3 are provided in parallel on the ridged part on the upper end side. More specifically, both the mantle parts 3, 3 are formed into a long cylindrical shape with approximately the same diameter dimension as the guide rod 2a, so that the guide rods 2a, 2a can be inserted thereinto. Slits 3', 3' are provided along the direction.

Also, among the pair of adjacent sliders 2b, 2b, one end of the slider 2b has a convex fitting part 4a, and the connecting part 4 of the rope 5 is connected to the other end facing one end of the slider 2b. One end of the slider 2b has a recessed fitting part 4b and a connecting part 4 for the rope 5 is provided respectively, and both sliders 2b, 2b
are provided so that they can be detachably connected through the fitting of the convex fitting part 4a and the concave fitting part 4b. Further, a pair of adjacent sliders 2b are connected in a line by a rope 5 whose ends are moored to the connecting parts 4, 4. And like this rope 5
One end of the front end of the slider 2b connected in a line by a rope 6a is connected to the seat body 1 by a rope 6a, and from one end of the rear end, a rope 6b
will be extended for a long time.

Next, how to use it will be explained.

(1) When attaching the curing sheet D to the insulator C As shown in Fig. 4, first, place one end of the rear end of the sheet body 1 on the tower A side of the insulator C so that the guide rods 2a, 2a are Slider 2b at the tip with a loop shape from the bottom so that it is facing upwards.
and the guide rods 2a, 2a via the mantles 3, 3.
Then, the second and third sliders 2b are added by fitting the convex fitting part 4a and the concave fitting part 4b provided at the ends thereof, and the guide rods 2a, 2a are inserted in the same manner as above. By fitting the sheet body 1 into the body, a state is obtained in which both ends of the sheet body 1 are connected in a cylindrical shape with the insulator C held therein.
Then, with both ends of the seat body 1 connected in a cylindrical shape, the seat body 1 is attached to the guide rod 2.
By rotating the insulator 180 degrees so that a and 2a are on the lower side of the insulator C, the installed state as shown in FIGS. 1 and 3 can be obtained.

(2) When removing the curing sheet D from the insulator C As shown in Fig. 5, each slider 2b is fitted in a convex manner by pulling the rope 6b connected to the slider 2b at the tip diagonally downward from the steel tower A side. The fitting between the portion 4a and the recessed fitting portion 4b allows the guide rods 2a, 2a to be pulled out in sequence while being released from the connected state. And like this, guide rod 2
By pulling out each slider 2b from a, 2a, the seat body 1 is released from the state in which its both ends are connected by the fasteners 2. In this way, both ends of the seat body 1 are By further pulling the rope 6b in the released state, the sheet body 1 can be removed from the insulator C.

The above explanation of how to use the seat body 1 describes the easiest way to install and remove the seat body 1, and does not necessarily mean that it cannot be installed or removed unless it is carried out as described above. .

For example, when installing the seat body 1, the seat body 1 is placed over the insulator C from the beginning so that the guide rods 2a, 2a are on the lower side of the insulator C, and then Slider 2
It is also possible to insert the rope 6b, and when removing the seat body 1, the rope 6b can be inserted as described above.
It is also possible to directly grip and pull out the slider 2b without using the slider 2b. Further, in the above embodiment, the slider 2b is divided into a plurality of pieces, and both ends of the seat body 1 are connected by the plurality of sliders 2b.
The seat body 1 is moved by a single long slider.
It is also possible to connect both ends of the .

Effects of the invention The present invention is constructed as described above. By having the construction as described above, the operation of attaching and removing the curing sheet to the insulator is simple and easy when working at high places at the top of the steel tower. Moreover, it has become possible to install the curing sheet without it being turned over by the wind.

[Brief explanation of the drawing]

Figure 1 is a front view showing the entire high-voltage power transmission line installation tower to which the protective sheet of the present invention is attached, Figure 2 is an external perspective view of the protective sheet, and Figure 3 is the state in which the protective sheet is attached to an insulator. An enlarged cross-sectional view showing
FIGS. 4 and 5 are explanatory views of how to use the device. A... Steel tower, B... Power line, C... Insulator, D...
...Curing sheet, 1... Sheet body, 1'... Core material,
2... Fastener, 2a... Guide rod, 2b...
Slider, 3...Tube, 3'...Slit, 4
...Connection part, 4a...Convex fitting part, 4b...Concave fitting part,
5... Rope, 6a, 6b... Rope.

Claims (1)

[Claims for Utility Model Registration] (1) A pair of guide rods are provided in parallel along both ends of the sheet body covering the insulator, and formed into a long cylindrical shape so that it can be inserted into both guide rods. A curing sheet for an insulator for a power transmission line, which is provided with a slider having a pair of jacket tubes, and the slider is inserted into the guide rod so as to be movable forward and backward. (2) The insulator for power transmission lines as set forth in claim 1 of the utility model registration claim, wherein the slider is divided into a plurality of pieces, and each slider is provided with a rope interposed between them so that they can be connected and separated. curing sheet.