JPH0329955Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention [Industrial field of application] This invention is intended for installing overhead ground wires on utility poles that are stretched above the distribution lines on utility poles to allow the induced current caused by lightning to escape underground. Regarding the connecting post hardware attached to the upper end of the

[Conventional technology]

Conventionally, ground wire insulators are attached directly upward to the top of utility poles via metal fittings, or the insulators are attached to rod-shaped supports fixed to the top of utility poles to support the ground wire.

[Problem that the invention attempts to solve]

However, since the distribution lines on utility poles differ depending on the topography, etc., there are cases where the ground wire is generally located at a constant height above the extension of the utility pole, where there are alternating ground wires and where one of the ground wires is desired to be higher, or when the distribution line When it is on the side, it is necessary to make it a ground line with a spear sticking out.

The object of the present invention is to obtain a column for supporting an overhead ground wire that can easily carry out the above-mentioned three types of ground wire tensioning.

B. Structure of the invention [Means for solving the problem] The invention consists of four L-shaped members 1a, 1a, 1b,
Lower four pillar part A with 1b arranged at the corners of a square
and an upper prismatic cylindrical column part B formed by forming a prismatic cylinder 2 by gradually narrowing the upper four L-shaped members from the lower part A and abutting them at the upper part. Two members 1a, 1a, 1b, and 1b are welded together at the abutting surface 3 of the upper rectangular cylindrical column B to form a pair of columns, and the above-mentioned pair is united with a bolt 4 at the bottom of the upper rectangular cylindrical column B. A pair of L-shaped members 1 are connected and split telephone pole bands 5a and 5b are attached to the inside of the upper part of the lower four pillars A.
a, 1a, 1b, 1b, and attach the branch band 7 to the lower four pillars A at intervals to attach the horizontal arms 6 for power distribution lines below the utility pole bands 5a, 5b.
The upper end of the upper rectangular cylinder column B is used as a mounting part for an overhead ground wire insulator mounting bracket 8, and the hole 10 for the mounting bolt 9 is provided in the pair of pillars. The inner space 2a of the column B is connected to the support tube 1 of the height adjustment tube 11 of the overhead ground wire and the support arm 12 of the overhead ground wire.
3 to fit together, and the mounting bolt 9 and hole 10 are configured to be able to be used also for mounting the cylindrical pipes 11 and 13. This is a connecting pole metal fitting for a utility pole that supports an overhead ground wire, in which members 1a and 1b are provided with bolt holes 14 for attaching horizontal arms.

[Effect]

A pair of columns on the L-shaped members 1a, 1a side and 1b, 1b side are joined with bolts 4 and nuts ₄₁ by butting the upper square cylindrical column portion B, and the lower four column portions A are connected as shown in Fig. 1. is fitted onto the top of the utility pole P via the utility pole bands 5a, 5b, and the bands are attached to the bolts and nuts 15, 1.
5 Tighten with ₁ . By tightening the lower ends of the members 1a and 1b with the branch band 7, the column body 1 is stably attached to the utility pole P.

Separately prepared ground wire insulator mounting brackets 8, height-adjusting pipes 11, and projecting arms 12 are selected according to the situation at the construction site and are commonly attached to the upper end of the upper rectangular column part B of the column body 1. bolts/nuts 9, 9 ₁ , bolt holes 10
By attaching it using the above-mentioned three methods of ground wire tensioning can be done easily.

〔Example〕

On the inner surface of the upper end of the upper rectangular cylindrical column part B of the column 1, a base 17 having a shape to hold the cylindrical tubes 11 and 13 is provided in order to stably fit and support the cylindrical tubes 11 and 13. 18 is the hole 19, 20 of the connecting bolt 4 below the base 17.
Notches 18 that receive the lower ends of the cylindrical pipes 11 and 13 at positions
This is a support metal fitting formed with ₁ .

The cylindrical pipes 11 and 13 are firmly held between the metal fittings 17 and 18, and the fitting depth is determined by the metal fitting 18, and the mounting holes 11 ₁ and 13 ₁ match the mounting bolt holes 10. It can be fixed immediately with bolts and nuts 9, ₉₁ .

The ground wire insulator mounting bracket 8 is attached to the bottom surface of the top plate ₈₁ .
Box-shaped insulator pin attachment part 8 ₂ and members 1a, 1a
and _{a contact surface 84 on} the inner surface of the members 1b, 1b for the base 17.The bolt 9 is placed on the top surface of the square tube 2, and the bolt 9 is passed through the hole ₈₅ . Pass the bolts 9 through the bolt holes 8 ₆ of ₃ and 8 ₄ and the hole 10 of the rectangular tube 2, and tighten them with nuts 9 ₁ to install them.

The insulator mounting bracket 8 is also attached to the upper end of the height-adjusting tube 11 as shown in FIG. 3.

When installing the horizontal armrest 6, members 1a and 1b
A bolt 22 is passed through the hole 14 from the inside as shown in FIG. Attach the arm mounting bracket 23 and the horizontal arm 6 to the left and right bolts 22 _{, 22} .
It is passed through the elongated hole 6 ₁ , the presser metal fitting 24 is applied, and the nut 22 ₁ is tightened and fixed.

In Fig. 2, S is a branch line, and 7 ₁ is an L-shaped member 1a, 1b.
This is a recess for positioning the branch line band formed at the lower end. Note that each of the bolts mentioned above is a square root bolt, and the corresponding screw hole is made square to constitute a rotation stopper.

C. Effect of the invention Since the structure is as described above, the pole body 1 is connected to the utility pole band 5.
a, 5b, and can be easily and firmly attached to the utility pole P by the branch band 7. When transporting and storing the pillar, it can be separated into two parts to reduce the volume and make it easier to handle.

At the upper end of the upper square cylindrical column part B, replace the ground wire insulator mounting bracket 8, ground wire height adjustment tube 11, and arm support tube for ground wire projection 13 with the same tightening bolts and nuts 9, 9. Since it is configured so that it can be installed in step ₁ , it is possible to easily carry out ground wire tensioning work in three ways, insulators G ₁ , G ₂ , and G ₃ shown in Figure 1, depending on the site situation.

Conventionally, when installing the horizontal arm 6 for power distribution, an arm mounting band, an arm tie, and an arm tie band were required, but the product of the present invention does not require these because the members 1a and 1b serve to prevent the arm from tilting. parts are no longer required, construction is cheaper and construction time can be shortened.
It is also preferable from an aesthetic point of view.

[Brief explanation of the drawing]

Figure 1 is a front view of the utility pole fitting used to support the overhead ground wire of the present invention, and Figure 2 shows the column body and
An exploded perspective view of the ground wire insulator mounting bracket, Figure 3 is a perspective view of the height adjustment tube for the overhead ground wire, Figure 4 is a perspective view of the arm for protruding the overhead ground wire, and Figure 5 is for power distribution. FIG. 1 is a cross-sectional plan view taken along the line shown in FIG. 1 of the horizontal arm mounting portion. 1 is a column body, A is a lower four column part, B is an upper square cylindrical column part, 3 is a butt weld part, 4 is a connecting bolt, 5a,
5b is a power pole band, 6 is a horizontal arm, 7 is a branch line band, 8 is a ground wire insulator mounting bracket, 11 is a tube for adjusting the ground wire height, 12 is an arm for extending the ground wire, and 13 is its support tube. tube.

Claims (1)

[Claim for Utility Model Registration] A lower four pillar part in which four L-shaped members are arranged at the corners of a square, and each of the L-shaped members is gradually narrowed from the lower four pillar parts upwards and butted at the upper part. A column consisting of an upper rectangular cylindrical column and an upper square cylindrical column, two of the L-shaped members are welded at the abutting surfaces of the upper square cylindrical column to form a pair of columns, and the upper rectangular tube is The above pairs are joined together with bolts at the bottom of the pillars, and a split power pole band is welded to each pair of L-shaped members inside the upper part of the lower four pillar parts, and a horizontal line for distribution lines is placed below the power pole band. A branch wire band is provided on the outer periphery of the four lower pillars at intervals for attaching armrests, and the upper end of the upper square cylindrical pillar is used as a mounting part for the overhead ground wire insulator mounting bracket, and the hole for the mounting bolt is provided on a pair of columns, and the inner space of the upper square column is formed so as to fit the height adjustment tube of the overhead ground wire and the support tube of the arm for arming the above-mentioned mounting. The L bolts and holes are configured so that they can also be used for mounting the cylinder pipe, and the L
A connecting pole hardware for utility poles that supports overhead ground wires with bolt holes for installing horizontal arms in the shaped member.