JP5822220B1 - Electrical device mounting device - Google Patents

Abstract

The present invention provides an altitude mounting device for an electrical device that can safely and easily install a heavy electrical device on the upper part of a utility pole without using an aerial work vehicle. A winch 1 attached to the lower part of a utility pole A, a lifting device 2, an arm support device 3 and a movable arm device 4 attached to the upper part of the utility pole A, and a lifting pulley 13 or movable of the winch 1 and the lifting device 2, respectively. The arm support device 3 includes a support tube 19 having an upper surface open, and the movable arm device 4 includes a support tube 19. The support 24 is rotatably inserted around the center axis as a center of rotation, and the arm 24 protrudes laterally from the support 23. An upper pulley 25 is provided at the tip of the arm 24. [Selection] Figure 5

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.
Therefore, an aerial work vehicle is usually used to install electrical equipment on the top of the utility pole.
For example, Patent Document 1 discloses that a sub arm connected to the tip of an extendable boom, a lifting part detachably provided on the sub arm, a winch that lifts the lifting part along the sub arm, and a lifting part can be connected. Thus, an aerial work vehicle including a lift table on which equipment can be placed is described.

Further, in Patent Document 2, a switch and a one-touch type band are assembled to a power pole mounting arm fixed to a power pole, and the free end of this power pole mounting arm is gripped by an arm adapter attached to a sub arm of an aerial work vehicle. Then, after the sub-arm is lifted and the one-touch type band is fixed to the utility pole, a switch mounting method for an aerial distribution line is removed by removing the free end of the utility pole mounting arm from the arm adapter.
However, there are many places where an aerial work vehicle cannot enter or where an aerial work vehicle cannot be installed stably. In such places, the above-mentioned conventional devices and construction methods cannot be adopted, and installation work is performed manually. I had to do it.

Japanese Patent Laying-Open No. 2015-19482 JP 2002-199567 A

  The problem to be solved by the present invention is to mount an electric device at a high place where a heavy electric device can be safely and easily installed on the upper part of a utility pole without using an aerial work vehicle. To provide an apparatus.

  TECHNICAL FIELD The present invention relates to a height installation device for an electric device used for installing an electric device on an upper portion of an electric pole, a winch that is detachably attached to the lower portion of the electric pole, and a lifting pulley that is detachably attached to the upper portion of the electric pole. A lifting device, an arm support device that is detachably attached to the upper portion of the utility pole, a movable arm device that is detachably attached to the arm support device and has an upper pulley, and a lifting pulley for the winch and the lifting device Or a wire connecting the upper part of the utility pole and the ground via the upper pulley of the movable arm device, the arm support device has a support cylinder having an open top surface, and the movable arm device is centered on the support cylinder A support column inserted rotatably about an axis, and an arm projecting laterally from the support column, and the upper pulley is attached to a tip of the arm. The arm support device and the movable arm device can be lifted from the ground to the upper part of the power pole by hanging the wire on the lifting pulley and winding with the winch, and the wire is hung on the upper pulley with the winch. By winding up, the said electric equipment can be lifted from the ground to the upper part of a utility pole.

An inverted conical bearing recess may be formed in the center of the bottom surface of the support cylinder, an inverted conical rotation shaft may be provided in the center of the bottom of the support column, and the rotation shaft may be rotatably engaged with the bearing recess. .
It is desirable that the length of the arm is adjustable.
An upper wire detachment prevention lid may be provided so as to be openable and closable facing the outer peripheral surfaces of the lifting pulley and the upper pulley.
It is desirable to provide an intermediate pulley that is detachably attached to the intermediate portion of the utility pole, guides the wire, and is provided so as to be able to open and close the intermediate wire detachment prevention cover facing the outer peripheral surface of the intermediate pulley.

According to the present invention, if a lightweight lifting device is installed on the top of the utility pole, the lifting device and the winch lift the arm support device and the movable arm device to the top of the utility pole, and the lifted movable arm device and winch are used. Heavy electric equipment can be lifted, and after installing the electric equipment, the arm support device and the movable arm device can be lowered to the ground using the lifting device and winch. Even without it, it is possible to easily install heavy electrical equipment on top of the utility pole.
In addition, the upper pulley supporting the wire connecting the electric device rotates around the distance from the electric pole, so that the electric device can be easily attached to the armrest protruding in various directions with respect to the mounting position of the movable arm device, and Can be installed safely.

According to the invention of claim 2, the movable arm device rotates smoothly and stably.
According to the invention which concerns on Claim 3, it is easy to install an electric equipment in the brace of the different length protruding from a utility pole.
According to the invention which concerns on Claim 4, it is hard to remove a wire unexpectedly from a lifting pulley and an upper pulley, and the safety | security of work increases.
According to the invention which concerns on Claim 5, a wire can be moved along the stable track | truck which is easy to work with an intermediate pulley, and a wire does not remove | deviate from an intermediate pulley.

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 in the 5th step of the electric equipment installation process of the utility pole which concerns on the Example of this invention. It is a perspective view of the winch which concerns on the Example of this invention, a fastening band, and a winch fixing plate. 1 is a side view of a lifting device according to an embodiment of the present invention. It is a top view of the lifting apparatus which concerns on the Example of this invention. It is a side view of the arm support device concerning the example of the present invention. It is sectional drawing of the support cylinder which concerns on the Example of this invention. It is a side view of the movable arm device concerning the example of the present invention. It is the side view which fractured | ruptured a part of arm support apparatus and support cylinder which concern on the Example of this invention. It is a top view of the intermediate pulley which concerns on the Example of this invention. FIG. 5 is a perspective view of a fastening band, an auxiliary frame, and a winch fixing plate according to another embodiment of the present invention. It is a perspective view of the auxiliary | assistant frame which concerns on the other Example of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 5, this embodiment relates to an altitude mounting apparatus used for installing an electric device composed of a high-pressure air switch C on a brace B provided so as to extend in the horizontal direction on the top of a utility pole A. 4, a winch 1, a lifting device 2, an arm support device 3, a movable arm device 4, a wire 5, and an intermediate pulley 6 are provided.

The winch 1 has a drum 7 for winding the wire 5, and winds and rewinds the wire 5 by manually turning a handle 8 connected to the drum 7, and includes two fastening bands 9. Is detachably attached to the lower part of the utility pole A.
As shown in FIG. 6, a number of bolt insertion holes 9 a are formed in the fastening band 9 at appropriate intervals in the longitudinal direction, and a nut 10 a is fixed to the outer surface of one end of the fastening band 9. Then, the fastening band 9 can be formed in an annular shape with a desired diameter by screwing the hooked bolt 10b locked to any one of the bolt insertion holes 9a into the nut 10a. The two fastening bands 9 are slidably attached to the upper and lower ends of the back surface of the winch fixing plate 11, and the winch 1 is fixed to the surface of the winch fixing plate 11 with bolts.

As shown in FIGS. 7 and 8, the lifting device 2 includes a vertical tube 12, a lifting pulley 13 provided at the upper end of the vertical tube 12, and a lateral position from a vertically spaced position below the vertical tube 12. Two brackets 14 projecting to the top and a fastening band 15 attached to the tip of the bracket 14 are provided.
The vertical pipe 12 is composed of a square pipe having a height of about 1500 mm to 1800 mm, and a pair of left and right parallel support plates 16 project from the upper end portions of both sides so as to face each other. 13 is installed rotatably. An upper wire detachment prevention lid 17 is provided between the tips of the support plates 16 so as to face the outer peripheral surface of the lifting pulley 13 so as to be opened and closed.

The tightening band 15 is formed by connecting a pair of semicircular bands 15a so as to be openable and closable. By tightening tightening screws 18 screwed into both ends of the semicircular band 15a, the diameter of the tightening band 15 can be reduced. ing.
Then, the bracket 14 is brought into contact with the electric pole A and the fastening band 15 is wound around the upper outer periphery of the electric pole A so that the lifting device 2 can be attached to and detached from the electric pole A so that the vertical pipe 12 extends upward in parallel with the electric pole A. It is attached. Further, since the bracket 14 is interposed between the fastening band 15 and the vertical tube 12, the vertical tube 12 is erected at a position slightly away from the utility pole A while avoiding an obstacle.

As shown in FIG. 9, the arm support device 3 includes a support cylinder 19 having a circular cross section attached to the upper part of the utility pole A and a fastening band 20 attached to the upper and lower parts of the support cylinder 19. Become.
The length of the support cylinder 19 is 500 mm to 600 mm. As shown in FIG. 10, the upper surface of the support cylinder 19 is open, and an inverted conical bearing recess 21 is formed at the center of the bottom surface of the support cylinder 19. Has been.
The fastening band 20 has a structure similar to that of the fastening band 15 of the lifting device 2 and is attached to the outer periphery of the support cylinder 19 by a fixing band 22 having the same structure. The arm support device 3 is detachably attached to the upper portion of the utility pole by winding the fastening band 20 around the outer periphery of the upper portion of the utility pole A.

As shown in FIG. 11, the movable arm device 4 includes a column 23, an arm 24, an upper pulley 25, and a guide pulley 26.
The support column 23 has a length of 1200 mm to 1400 mm and is composed of a pipe having a circular cross section having an outer diameter slightly smaller than the inner diameter of the support cylinder 19 of the arm support device 3. The support cylinder 19 can be rotated about the central axis of the support cylinder 19. Inserted. A rotation ring 28 is fixed to the outer peripheral surface of the support column 23 at positions corresponding to the upper end portion and the lower end portion of the support cylinder 19. The outer diameter of the rotating ring 28 is slightly smaller than the inner diameter of the support cylinder 19.
Further, an inverted conical rotating shaft 27 is provided at the center of the bottom surface of the support column 23, and the rotating shaft 27 is rotatably engaged with the bearing recess 21 of the support cylinder 19 (FIG. 12).
As described above, the rotation ring 28 is fixed to the outer peripheral surface of the support column 23, and the rotation shaft 27 of the support column 23 is engaged with the bearing recess 21 of the support tube 19. Rotates smoothly without rattling.

The arm 24 includes an outer pipe 29 that protrudes laterally from the upper part of the column 23, and an inner pipe 30 that is slidably and fixedly fitted to the inside from the tip surface of the outer pipe 29. By moving it, the length can be adjusted in the range of 650 mm to 850 mm.
A corner portion of the support 23 and the outer pipe 29 is reinforced by a corner reinforcing plate 34.
Two parallel support plates 16 ′ are erected on the upper surface of the distal end portion of the inner pipe 30, and the upper pulley 25 is rotatably mounted between the support plates 16 ′. An upper wire detachment prevention lid 17 ′ is provided between the upper ends of the support plates 16 ′ so as to face the outer peripheral surface of the upper pulley 25 so as to be opened and closed.
The guide pulley 26 is installed on the side surface opposite to the protruding direction of the arm 24 in the upper end surface of the column 23 and the upper part of the column 23. The mounting structure of the guide pulley 26 is the same as the mounting structure of the upper pulley 25 and the lifting pulley 13.

As shown in FIG. 13, the intermediate pulley 6 includes a tightening band 31 for detachably attaching to the intermediate portion of the utility pole A. The fastening band 31 has the same structure as the fastening band 9 for attaching the winch 1, and is provided on the back surface of the fixed frame 32.
A pair of left and right support plates 16 "protrude from the surface of the fixed frame 32 and the intermediate pulley 6 is rotatably supported between the support plates 16". Further, between the tips of the support plates 16 ", an intermediate wire detachment prevention lid 17" is provided so as to be openable and closable, facing the outer peripheral surface of the intermediate pulley 6. The depth dimensions of the fixed frame 32 and the support plate 16 ″ are desirably 70 to 100 mm and 90 to 100 mm, respectively, so that the intermediate pulley 6 is disposed at a position away from the utility pole A while avoiding an obstacle. .
As shown in FIGS. 2 and 4, the wire 5 wound around the winch 1 extends upward to engage with the intermediate pulley 6, and further extends upward to raise the lifting pulley 13 or the movable arm of the lifting device 2. Engage with the guide pulley 26 and the upper pulley 25 of the device 4 and then extend downward to communicate the upper part of the utility pole A with the ground.

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, the winch 1 is attached to the lower part of the electric pole A, the intermediate pulley 6 is attached to the same side as the winch 1 in the middle part of the electric pole A, and the lifting device 2 is installed on the upper part of the electric pole A. Then, the wire 5 wound around the winch 1 is bridged from above to the lifting pulleys 13 on both sides of the lifting device 2 through the outer surface of the intermediate pulley 6 and further extended toward the ground. In this way, the wire 5 is lifted from above and is laid on the pulley 13 to widen the width of the wire 5 so that the wire 5 does not hit an obstacle.
The winch 1 is attached to the side opposite to the lifting side of the utility pole A so that there is no danger to the operator who operates the winch 1 even if a fall accident occurs during the lifting work with the wire 5.
Further, the lifting device 2 is attached so that the worker carries it over the utility pole A and the vertical pipe 12 extends upward from the upper end of the utility pole A.

Next, the arm support device 3 is connected to the tip of the wire 6 and the handle 8 of the winch 1 is operated, and the arm support device 3 is attached to the upper part of the utility pole A as shown in FIG.
Next, the wire 6 is rewound again, the movable arm device 4 is connected to the tip of the wire 6 on the ground, and the movable arm device 4 is lifted on the upper part of the electric pole A and fitted into the arm support device 3 as shown in FIG. Include. The length of the arm 24 of the movable arm device 4 is adjusted in advance according to the length of the arm metal B on which the high-pressure air switch C is to be installed.

After that, as shown in FIG. 4, the wire 6 is removed from the lifting pulley 13 and is sequentially passed over the guide pulley 26 and the upper pulley 25 of the movable arm device 4. Also in this case, the wire 5 runs around the guide pulley 26 and the upper pulley 25 from above. Then, the high-pressure air switch C is connected to the tip of the rewinded wire 6 and lifted.
At this time, the movable arm device 4 is rotated in the horizontal direction, and the projecting direction of the arm 24 is adjusted in accordance with the position of the arm metal B.
Further, as shown in FIG. 5, a high-pressure in-air switch C suspended on the upper part of the utility pole A is attached to the brace B.

When the installation of the high-pressure air switch C is completed, the movable arm device 4 removed from the utility pole A by switching the wire 6 from the guide pulley 26 and the upper pulley 25 of the movable arm device 4 to the lifting pulley 13 of the lifting device 2 again. And the arm support device 3 are sequentially suspended from the ground.
Next, the worker removes the lifting device 2 from the utility pole A and carries it down to the ground, and removes the intermediate pulley 6 and the winch 1 from the utility pole A.

As shown in FIG. 14, when the winch fixing plate 11 ′ has a groove shape in cross section and the leg plates 33 whose tips are in contact with the power pole A are provided on both sides of the back surface, an obstacle such as a rising conduit is provided below the power pole A. In this case, the winch 1 can be attached to a position away from the outer surface of the utility pole A while avoiding an obstacle.
Further, when there are obstacles at a plurality of positions below the utility pole A, one or more auxiliary frames 35 may be interposed between the utility pole A and the fastening band 9.
As shown in FIG. 15, the auxiliary frame 35 is formed by providing band locking clips 37 on the upper and lower portions of the outer surface of the rectangular tube 36. The rectangular cylindrical body 36 has substantially the same vertical dimension as the winch fixing plate 11 ′, and the band locking clip 37 is a metal fitting having an inverted U-shaped cross section that opens downward.
The auxiliary frame 35 is disposed between the utility pole A and the fastening band 9 adjacent to the portion where the obstacle is provided, the inner side surface of the rectangular tube 36 is applied to the utility pole A, and the upper and lower fastening bands are arranged. By tightening 9 to the band locking clip 37, the tightening band 9 can be tightened in a state of floating from the utility pole A.

The specific structure of the height mounting device of the present invention is not limited to the above embodiment.
For example, the tightening band for attaching the winch, the intermediate pulley, the lifting device, or the arm support device to the utility pole may be any tightening band that does not loosen the periphery of the utility pole.
In addition, the upper pulley of the movable arm device can be installed on the lower surface of the distal end of the arm, and in this case, the position of the guide pulley is appropriately changed according to the position of the upper pulley.
If the aerial work vehicle can be used, the movable arm device 4 is installed at the tip of the boom of the aerial work vehicle and the winch 1 is attached to the movable arm device 4. Then, the movable arm device 4 and the winch 1 are lifted together with the tip of the boom, and the operator riding on the bucket of the aerial work vehicle manually operates the winch 1 to use the movable arm device 4 and the winch 1 as they are. Thus, the high-pressure air switch C can be lifted by an aerial work vehicle.

A Telephone pole B Arm metal C High pressure air switch (PAS)
DESCRIPTION OF SYMBOLS 1 Winch 2 Lifting device 3 Arm support device 4 Movable arm device 5 Wire 6 Intermediate pulley 7 Drum 8 Handle 9 Tightening band 9a Bolt insertion hole 10a Nut 10b Hook bolt 11, 11 'Winch fixing plate 12 Vertical tube 13 Lifting pulley 14 Bracket DESCRIPTION OF SYMBOLS 15 Tightening band 15a Semicircle band 16, 16 ', 16 "Support plate 17, 17' Upper wire removal prevention lid 17" Middle part wire removal prevention lid 18 Tightening screw 19 Support cylinder 20 Tightening band 21 Bearing recessed part 22 Fixing band 23 Post 24 Arm 25 Upper pulley 26 Guide pulley 27 Rotating shaft 28 Fixing ring 29 Outer pipe 30 Inner pipe 31 Tightening band 32 Fixed frame 33 Leg plate 34 Corner reinforcing plate 35 Auxiliary frame 36 Square cylinder 37 Band locking clip

Claims (5)

A device for mounting at a height of an electric device used to install an electric device on the top of a power pole,
A winch that is detachably attached to the bottom of the utility pole,
A lifting device removably attached to the top of the utility pole, and having a lifting pulley;
An arm support device detachably attached to the upper part of the utility pole;
A movable arm device detachably attached to the arm support device and having an upper pulley;
A wire connecting the upper part of the utility pole and the ground via the winch and the lifting pulley of the lifting device or the upper pulley of the movable arm device;
The arm support device has a support cylinder having an open top surface, and the movable arm device is inserted into the support cylinder so as to be rotatable about a central axis as a rotation center, and projects from the support column to the side. The arm support device and the movable arm device can be lifted from the ground to the upper part of the power pole by having an arm, providing the upper pulley at the tip of the arm, and hanging the wire on the lifting pulley and winding it with the winch A device for attaching an electric device to an altitude, wherein the electric device can be lifted from the ground to the upper part of a power pole by hanging the wire on the upper pulley and winding it with the winch.   An inverted conical bearing recess is formed in the center of the bottom surface of the support cylinder, an inverted conical rotation shaft is provided in the center of the bottom surface of the support column, and the rotation shaft is rotatably engaged with the bearing recess. The device for mounting at a high place of electrical equipment according to claim 1.   The height mounting device for an electric device according to claim 1 or 2, wherein the length of the arm is adjustable.   The apparatus for attaching a height to an electric device according to any one of claims 1 to 3, wherein an upper wire detachment prevention lid is provided so as to be openable and closable facing the outer peripheral surfaces of the lifting pulley and the upper pulley.   An intermediate pulley that is detachably attached to an intermediate portion of the utility pole, guides the wire, and faces the outer peripheral surface of the intermediate pulley, and is provided with an intermediate wire detachment prevention lid that can be opened and closed. Item 5. A mounting device for an electric device according to any one of Items 1 to 4.

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