JP2019201447A - High-place mounting device for electric apparatus - Google Patents

Abstract

To provide a high-place mounting device for an electric apparatus which is capable of safely and easily install an electric apparatus in the upper part of an electric pole with a small number of workers without using a high-place work vehicle, further, reduces the number of components, reduces cost and is lightweight and easy to be handled.SOLUTION: A high-place mounting device for an electric apparatus comprises: multiple support fixing brackets 1 mounted in the upper part of an electric pole A in a removable manner and including support mounting parts 8a and 8b which are disposed side by side in a vertical direction at the time of mounting; a support 2 which is mounted to the support mounting parts 8a and 8b in a rotatable/fixable manner with a central axis defined as a rotation center; an arm 3 which is expanded laterally from the support 2 and in which a pulley 17 is provided in a distal end; a winch 4 which is installed in the intermediate part of the arm 3; and a wire 5 connecting the upper part of the electric pole A with the ground via the winch 4 and the pulley 17. The wire 5 is wound up by the winch 4, such that an electric apparatus C is lifted upwards from the ground to the upper part of the electric pole A.SELECTED DRAWING: Figure 3

Description

  TECHNICAL FIELD The present invention relates to an electric device mounting device for use in installing an electric device such as a high-pressure air switch (PAS) at a high location such as an upper portion of a utility pole.

The height of the power pole is about 10 m to 12 m, and there is a danger in the work of installing the electrical equipment on the top of the power pole. In particular, since the high-pressure air switch (PAS) has a weight of about 60 kg, it is very difficult to carry it up to the top of the utility pole manually.
Usually, an aerial work vehicle is used to install electrical equipment on the top of a utility pole.
However, there are many places where an aerial work vehicle cannot enter and there are many places where an aerial work vehicle cannot be installed stably, and in such a place, all installation work has to be done manually.

Therefore, the inventor of the present invention firstly, a winch attached to the lower part of the utility pole, a lifting device attached to the upper part of the utility pole and having a lifting pulley, an arm support device attached to the upper part of the utility pole, and an arm support device And a movable arm device having an upper pulley and a wire for connecting the upper part of the utility pole and the ground via the lifting pulley of the winch and the lifting device or the upper pulley of the movable arm device. The movable arm device has a support column inserted into the support tube so as to be rotatable about the central axis, and an arm projecting sideways from the support column. By installing a pulley, hanging the wire on the pulley and winding it with a winch, the arm support device and the movable arm device are lifted from the ground to the top of the power pole, By winding up by winch over a yer in upper pulley proposed a high place mounting device for electrical equipment in lifting the electrical equipment from the ground to the top of a utility pole (see Patent Document 1).
If this apparatus is used, a heavy electrical apparatus can be safely and easily installed on the upper part of the utility pole without using an aerial work vehicle.

Japanese Patent No. 5822220

However, the above-described conventional mounting device for an electric device has a large number of parts and is heavy, so that it takes a relatively long time to mount and remove, and it cannot be said that the cost reduction is sufficient.
The problem to be solved by the present invention is that it is possible to safely and easily install heavy electrical equipment on the upper part of the utility pole without using an aerial work vehicle, and the number of parts is small and the cost is low. An object of the present invention is to provide an altitude mounting device for an electric device that is inexpensive, lightweight, and easy to handle.

  The present invention relates to an electrical device height mounting apparatus used for installing an electrical device on an upper portion of a utility pole, and includes a plurality of support fixtures, support posts, arms, winches, and wires, and the plurality of support posts. The fixing bracket is detachably attached to the upper portion of the utility pole with a vertical interval, and has a column mounting portion arranged side by side in the vertical direction at the time of mounting, and the column includes the plurality of column fixing brackets. The arm is inserted into the support post so that it can be rotated and fixed around the center axis. The arm projects sideways from the support, a pulley is provided at the tip, and the winch is attached to the intermediate part of the arm. The wire connects the upper part of the power pole and the ground via the winch and the pulley, and winds up the wire with the winch, so that the electric device connected to the wire is removed from the ground. It can be lifted to the top of the pillar.

The support column of the lowermost column fixing bracket is a support tube that opens upward, and the column mounting portion of the other column fixing bracket is disposed above the support tube and opens in the vertical direction. The support column is inserted into the support tube and the support cylinder, an inverted conical bearing recess is formed at the center of the bottom surface of the support cylinder, and an inverted cone rotation shaft is provided at the center of the bottom surface of the support column. The rotating shaft may be rotatably engaged with the bearing recess.
It is desirable that the length of the arm is adjustable.
In this case, the arm includes an outer pipe projecting from the support column, and an inner pipe that is slidably and internally fitted from the distal end surface of the outer pipe, and the pulley has a distal end portion of the small-diameter pipe. And the winch may be attached to the large-diameter pipe.

According to the present invention, a small number of lightweight and small components can be installed on the top of a utility pole, and a heavy electrical device can be lifted using a winch. It can be installed safely and easily on the top of the utility pole.
In addition, since the number of parts and the weight of parts are small, the price is low, and the labor required for attachment and removal can be reduced.
In addition, since the support fixture for supporting the support is divided into a plurality of parts, it can be installed avoiding various devices installed on the utility pole, and sufficient support strength can be obtained.
The pulley that supports the wire connected to the electric device can be adjusted in position according to the extending direction of the arm metal to which the electric device is attached by rotating the support column.
The worker at the top of the utility pole installs electrical equipment and operates the winch, so there is no need to communicate with the top of the utility pole and on the ground, making it easy to adjust the winch.

According to the invention of claim 2, the movable arm device rotates smoothly and stably.
According to the invention which concerns on Claim 3 and 4, it is easy to install an electric equipment in the brace of the different length protruding from a utility pole.

It is a side view in the 1st step of the electric equipment installation process of the utility pole which concerns on the Example of this invention. It is a side view in the 2nd step of the electric equipment installation process of the utility pole which concerns on the Example of this invention. It is a side view in the 3rd step of the electric equipment installation process of the utility pole which concerns on the Example of this invention. It is a side view in the 4th step of the electric equipment installation process of the utility pole which concerns on the Example of this invention. It is a side view of the support | pillar fixing metal fitting which concerns on the Example of this invention. It is a top view of the lowest support | pillar fixing metal fitting which concerns on the Example of this invention. It is sectional drawing of the support cylinder which concerns on the Example of this invention. It is a side view of the support | pillar and arm which concern on the Example of this invention. It is the side view which fractured | ruptured a part of support | pillar, arm, and support | pillar fixing metal fitting which concern on the Example of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 4, this embodiment relates to an altitude mounting apparatus used for installing an electric device composed of a high-pressure air switch C on an arm metal B provided to extend in the horizontal direction above the utility pole A. As shown in FIG. 3, a plurality of (three in this embodiment) column fixing brackets 1, columns 2, arms 3, winches 4, and wires 5 are provided.

The strut fixing bracket 1 has a structure different between the bottom strut fixing bracket 1a and the other strut fixing bracket 1b. Each of the strut fixing bracket 1 and the fastening band 6 for attaching to the utility pole A and the tightening band 6 to the side. A bracket 7 that extends and a support mounting portion provided at the tip of the bracket 7 are provided.
As shown in FIGS. 5 and 6, the tightening band 6 is formed by connecting a pair of semicircular bands 9 so as to be openable and closable by tightening tightening screws 10 screwed into both ends of the semicircular band 9. The diameter of the band 6 can be reduced.
A bracket 7 extends laterally from the center of the outer peripheral surface of one semicircular band 9.

The strut mounting portion of the lowermost column fixing bracket 1a is a support tube 8a having a circular cross section opened upward, and the column mounting portions of the other column fixing brackets 1b are support tubes having a circular cross section opening in the vertical direction. 8b.
The support cylinder 8a and the support tube 8b have the same height and diameter, and an inverted conical bearing recess 11 is formed at the center of the bottom surface of the support cylinder 8a (FIG. 7). Further, fixing screws 12 are screwed into the side surfaces of the support cylinder 8a and the support tube 8b from the outer peripheral side to the inner side.
Then, as shown in FIG. 1, a pair of semi-circular bands 9a are fitted around the outer periphery of the utility pole A, and the fastening screw 10 is tightened to wrap the fastening band 6 around the upper outer periphery of the utility pole A. The fixing bracket 1 is attached to the utility pole A with a vertical interval.
At this time, the support cylinder 8a and the support tube 8b of the column fixing bracket 1 are arranged side by side in the vertical direction.

The support column 2 has a length of 1200 mm to 1400 mm and is formed of a circular pipe having an outer diameter slightly smaller than the inner diameter of the support cylinder 8a and the support pipe 8b, and rotates around the central axis of the support cylinder 8a and the support pipe 8b. -It inserts so that fixation is possible (FIGS. 2-4).
Further, an inverted conical rotation shaft 13 is provided at the center of the bottom surface of the support column 2, and this rotation shaft 13 is rotatably engaged with the bearing recess 11 of the support cylinder 8a (FIG. 9).
By engaging the rotary shaft 13 of the support column 2 with the bearing recess 11 of the support cylinder 8a in this way, the support column 2 is not subjected to great resistance in the support cylinder 8a and the support tube 8b, and is smooth without rattling. The support column 2 is fixed by rotating the screw 2 and screwing the fixing screw 12.

As shown in FIG. 8, the arm 3 includes an outer pipe 14 that protrudes laterally from the upper end portion of the column 2, and an inner pipe 15 that is slidably and fixedly fitted to the inside from the distal end surface of the outer pipe 14. The length can be adjusted in the range of 650 mm to 850 mm by sliding the inner pipe 15. The joint corner between the support column 2 and the outer pipe 14 is reinforced by a corner reinforcing plate 16.
A pulley 17 is rotatably installed on the top surface of the inner pipe 15, a winch 4 is attached to the top surface of the outer pipe 14, and the wire 5 wound around the drum of the winch 4 hangs down through the outer periphery of the pulley 17. Yes.
That is, the wire 5 connects the upper part of the utility pole A with the ground via the winch 4 and the pulley 17, and the wire 5 is wound and unwound by turning the handle connected to the drum of the winch 4 by hand. it can.
A lifting bracket 18 is provided on the upper surface of the base end portion of the outer pipe 14 to hang a rope when the support 2 and the arm 3 are pulled up onto the utility pole A.

Below, the procedure for installing the high-pressure air switch C on the arm metal B of the utility pole A using this high-place mounting device will be described.
First, as shown in FIG. 1, a worker who has climbed the utility pole A attaches a plurality of support fixtures 1 to the upper part of the utility pole A with an interval in the vertical direction. At this time, the fastening band 6 of the column fixing bracket 1 is attached while avoiding various devices such as a wiring bracket installed on the utility pole A. Further, the support cylinders 8a and the support tubes 8b of the plurality of support fixtures 1 are arranged so as to be aligned in the vertical direction.
Next, a rope is hung on the lifting bracket 18 and the support 2 and the arm 3 are lifted on the utility pole A.

Next, as shown in FIG. 2, the support column 2 is inserted into the support tube 8a and the support tube 8b of the support fixture 1 from above, and the rotating shaft 13 of the support column 2 is engaged with the bearing recess 11 of the support tube 8a.
Further, the length of the arm 3 is adjusted in accordance with the position where the high pressure air switch C of the arm metal B is attached, the projecting direction of the arm metal B is aligned with the projecting direction of the arm 3, and the fixing screw 12 is screwed in. Fix the column 2.
Next, the wire 5 is rewound, the high-pressure air switch C is connected to the tip of the wire 5 on the ground, and the wire 5 is wound up using the winch 4 as shown in FIG. lift.
Thereafter, as shown in FIG. 4, the high-pressure air switch C suspended above the utility pole A is attached to the brace B.

At this time, since the attachment of the high-pressure air switch C and the operation of the winch 4 are both performed on the utility pole A, the installation position of the high-pressure air switch C is not communicated between the utility pole A and the ground. The winding position by the winch 4 can be finely adjusted according to.
When the installation of the high-pressure air switch C is completed, the column 2 is removed from the support cylinder 8a and the support tube 8b, the column 2 and the arm 3 are lowered to the ground, and then the column fixing bracket 1 is removed from the utility pole A and lowered.

The specific structure of the height mounting device of the present invention is not limited to the above embodiment.
For example, the fastening band for attaching the pole fixing bracket to the utility pole may be any fastening band that does not loosen the periphery of the utility pole.
Moreover, the number of support | pillar fixing metal fittings can be suitably changed with the kind and weight of an electric equipment.
Furthermore, when lifting the pole and arm with a rope, another pulley for hanging the rope on the utility pole may be attached.

A Telephone pole B Arm metal C High pressure air switch (PAS)
DESCRIPTION OF SYMBOLS 1 support | pillar fixing bracket 2 support | pillar 3 arm 4 winch 5 wire 6 clamping band 7 bracket 8a support cylinder 8b support tube 9 semicircular band 10 clamping screw 11 bearing recessed part 12 fixing screw 13 rotating shaft 14 outer pipe 15 inner pipe 16 corner reinforcing plate 17 Pulley 18 Lifting bracket

Claims (4)

An electrical device height installation device used to install an electrical device on top of a utility pole, comprising a plurality of support fixtures, support posts, arms, winches, and wires,
The plurality of support fixing brackets are attached to the upper portion of the utility pole so as to be detachable at intervals in the vertical direction, and have support support mounting portions arranged side by side in the vertical direction at the time of installation,
The support column is inserted into the support mounting part of the plurality of support fixtures so that it can be rotated and fixed around the center axis.
The arm protrudes laterally from the column, and a pulley is provided at the tip.
The winch is attached to an intermediate portion of the arm;
The wire connects the upper part of the utility pole and the ground via the winch and the pulley,
An apparatus for mounting at a height of an electric device, wherein the electric device connected to the wire can be lifted from the ground to the upper part of a power pole by winding the wire with the winch.   The column mounting portion of the column fixing bracket located at the bottom is a support tube that opens upward, and the column mounting portions of the other column fixing brackets are arranged above the support tube and open in the vertical direction. The support column is inserted into the support tube and the support cylinder, an inverted conical bearing recess is formed at the center of the bottom surface of the support cylinder, and an inverted cone rotation shaft is provided at the center of the bottom surface of the support column. 2. The apparatus for mounting at a height of an electric apparatus according to claim 1, wherein the rotary shaft is rotatably engaged with the bearing recess.   The height-adjusting device for an electric device according to claim 1 or 2, wherein the arm is adjustable in length.   The arm includes an outer pipe that protrudes from the support column, and an inner pipe that is slidably / fixedly fitted to the inside from the tip surface of the outer pipe, and the pulley is provided at a tip portion of the inner pipe. 4. The apparatus for attaching a height of an electric device according to claim 3, wherein the winch is attached to the outer pipe.

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