JPH0229619Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a weighted insulator device.

In order to reduce construction costs, insulators for power transmission lines generally use suspension devices frequently, but in this case, considering the wind pressure acting on the transmission line, Because the vertical load due to the weight of the wires, etc. may be insufficient,
In order to increase this vertical load, it is common practice to hang a weight from a suspension device to prevent excessive lateral vibration.

In addition, the weight added to the suspension device in this way is
In order to make transportation and overhead wire work easier, structures that are constructed by stacking multiple iron plates, etc. and assembling them on-site are often used.

However, with this polymerized weight, if rainwater enters between the stacked steel plates due to capillary phenomenon, it may freeze, and this repeated freezing and thawing may cause freezing. Occasionally, the iron plate would spread out, and when the ice melted, it would return to its original state, causing the problem that the bolts and nuts used to tighten the stacked weights would loosen. There was also a risk that the bolts and nuts would break due to the growth of ice.

In order to solve these problems, the present invention has been developed in a device in which a plate-shaped weight is horizontally connected to a yoke suspended from an insulator chain in a vertical arrangement. In the fastening mechanism that integrally connects the yoke, a plate spring formed in a shape bulging from the support point toward the center and a presser foot to securely support the plate spring are provided, and a presser foot is provided for suspending the yoke. By providing a long hole in the weight for suspending it on the bracket, the bolts and nuts for tightening the overlapping weights of the insulator device with a weight can be prevented from becoming loose or damaged, and the yoke and the weight can be connected together. The purpose is to improve sex.

The following drawings show an embodiment of the present invention using a V for six conductors.
The suspended insulator device will be explained.

In the figure, 1 is a V-hanging insulator string, 2 is a connecting fitting connected to the lower end of the insulator string 1, and 3 is a six-conductor yoke connected to this connecting fitting 2. This yoke 3
In this example, connecting holes 4 are provided at the upper ends of both sides of the upper yoke part 3a to connect the insulator chain 1 through the connecting fittings 2, and the upper two conductors of six conductors arranged in a hexagonal pattern are provided at the lower ends of both sides of the upper yoke part 3a. A middle stage protruding from the lower part of the narrow body part 3b hanging from the center part of the upper stage yoke part 3a to the left and right sides. Connecting holes 6 are provided at both lower ends of the yoke portion 3c to connect suspension clamps (not shown) that grip the middle two strips of the hexagonally arranged six conductors, and a lower yoke portion 3d is provided below the middle yoke portion 3c. ,
Connecting holes 7 are provided at both lower ends of the lower yoke portion 3d to connect suspension clamps (not shown) for gripping the lower two conductors of the hexagonal array of hexagonal conductors.

Further, a suspension bracket 8 for suspending a weight is provided near the upper center of the plate surface of the yoke 3 so as to protrude from both sides from the plate surface of the yoke 3. Bolt insertion holes 9 are provided on both left and right sides of the intermediate portion between the upper yoke portion 3c and the lower yoke portion 3d.

Further, the vertically arranged weights 10 attached to both sides of the yoke 3 are made by stacking a plurality of iron plates, and the yoke 3 and the weight iron plate 10 are integrated with bolts 11 and nuts 12. to combine.

That is, a long hole 13 for suspending the yoke 3 on the suspension bracket 8 is provided near the upper center of the weight iron plate 10, and bolt insertion holes 14 corresponding to the bolt insertion holes 9 of the yoke 3 are provided. . Note that stability can be increased by providing the long holes 13 in the upper part of the plate surface.

Further, reference numeral 15 indicates a leaf spring, and this leaf spring 15 is attached to the bolt 11 via a presser foot 16 between the weight 10 and the nut 12, as shown in FIGS. 3 and 4. The leaf spring 15 is formed in a shape that bulges out from the support points 17 at both ends toward the center,
The gap 1 resists the tightening force of the bolt 11 and nut 12.
It has an elastic force of 8.

Further, the presser foot 16 is used to securely support the leaf spring 15 to the bolt 11.

Also, 19 in Figure 2 is a cotter pin, and 20
is a cap for preventing corona.

It goes without saying that the insulator device of the present invention is not limited to the V-suspension shown in the above embodiment, but may also be single-suspension.

According to this insulator device, when rainwater enters between the yoke 3 and the iron plates 10 for weights stacked on each other or between the iron plates 10 for weights 10 due to capillary phenomenon, etc.
When it freezes, it tends to spread the iron plate 10, but the stress can be absorbed by the deformation of the leaf spring 15. When the ice melts, the restoring force of the leaf spring 15 restores it to its original state.

In this manner, in the device of the present invention, the resilient force of the leaf spring 15 is constantly applied in response to the tightening force of the bolt 11 and nut 12, so that the bolt 11 and nut 12 do not loosen.

In addition, the leaf spring 15 was
If the size of the gap 18 is set as
1. The nut 12 will not be damaged.

Further, the weight iron plates 10 are successively suspended on the suspension bracket 8 of the yoke 3 using the elongated holes 13 thereof, and then connected with bolts 11 and nuts 12.

Therefore, the yoke 3 and the iron plate 10 for weight can be joined together quickly.

Therefore, according to the present invention, the tightening bolt 1
There is no fear that the bolt 11 and the nut 12 will become loose or that the bolt 11 and the nut 12 will be damaged, and the weight can be installed safely and quickly, which is a practically beneficial effect.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the device of the present invention;
FIG. 2 is a side view thereof, FIG. 3 is a front view showing essential parts of the present invention, and FIG. 4 is a bottom view thereof. 1... V-hanging insulator chain, 2... Connection fittings, 3...
Yoke, 3a... Upper yoke part, 3b... Narrow body part, 3c... Middle yoke part, 3d... Lower yoke part, 4, 5, 6, 7... Connection hole, 8... Suspension bracket, 9 ... Bolt insertion hole, 10 ... Steel plate for weight, 11 ... Bolt, 12 ... Nut, 13 ...
...Long hole, 14... Bolt insertion hole, 15... Leaf spring, 16... Presser foot, 17... Support point, 18...
void.

Claims (1)

[Scope of utility model registration request] In a device in which a plate-shaped weight is laterally connected to a yoke suspended from an insulator chain in a vertical arrangement, a support point is provided in the fastening mechanism that integrally connects the yoke and the weight. A leaf spring formed in a shape bulging from the center toward the center and a presser foot to securely support the leaf spring are provided, and a long hole is provided in the weight for suspension on a suspension bracket of the yoke. An insulator device with a weight.