JP2549261Y2 - Switch breaker lifting tool for construction - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial applications] This invention is mainly for the construction of high-voltage distribution lines,
When performing maintenance work during power outage work, reduction of the power outage range,
It is a lifting tool for installing a switchgear for construction in advance on construction span poles to shorten construction time.

[0002]

2. Description of the Related Art At the time of the above-mentioned construction, as shown in FIG. 7, a construction switch was directly arranged on a utility pole, so that the switch, a high-voltage pull-down cable,
The cable retaining fittings were lifted by itself, and the worker had to go up and down the telephone pole many times for installation work. Also, it was a live line during installation, and there was a risk of electric shock and a risk of crash.

[0003]

As described above, since there are many dangers in the installation of a construction switch, there are many dangers. Attach the lower cable and cable anchorage to a single tool, unitize them, lift them at once with a construction work vehicle, and set them on a utility pole to solve the problem. It also saves time and shortens the working time.

[0004]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail. A telephone pole fastening portion 2, an arm 3, and a switch mounting portion 4 are provided at a lower portion, and a column 6 is set up from the lower portion. 8 and a cable winding section 9.

[0005] The electric pole fastening portion 2 is obtained by welding a mounting plate 11 on the upper and lower sides of a mounting frame 1 bent in a U-shape, and turning a tightening bolt having a chain and a tightening handle on one end of the mounting plate 11. The shaft is movably fixed, and the other end of the chain receiving member is also rotatably fixed to the other end, and the upper part of the mounting frame 1 (below the upper mounting plate 11).
An arm 3 made of a square pipe is provided so as to protrude more horizontally, locking pin fitting holes 31 are provided at equal intervals on both side surfaces of the arm 3, and a stopper metal fitting 32 is provided at a distal end portion.

The switch mounting portion 4 is used by being movably inserted into the arm 3 described above. Four locking pins 42 are mounted on both side surfaces of the outer cylinder 41, and a mounting bracket for the column 6 is provided at the center. 43 is provided.

The height adjusting section 5 is formed by bending a round bar into a U-shape to form a locking pin 51, and providing an L-shaped plate 53 which is inserted through the locking pin 51 and welded at a predetermined position. The retaining pin 52 is similarly welded to the other piece of the plate 53.

The column 6 has an inner column 7. The column 6 is provided with through holes 61 of locking pins 51 of the adjusting section 5 at regular intervals, and a fitting hole of a retaining pin 52 of the locking pin 51. 62 through hole 61
Provide at equal intervals on the side surface, not on the surface. Also, through holes 71 are provided in the inner support 7 at equal intervals, and together with the through holes 61 of the support 6, the structure is such that the height of the support is adjusted by passing through the locking pin 51. The support 6 and the inner support 7 use FRP square pipes.

The cable retaining member 8 comprises a mounting plate 82 for mounting a cable receiver 81, a suspension ring 83 for hanging a lifting hook of a working vehicle, and a cap 84 which is removably mounted on the upper part of the inner support column 7. The cable receiver 81 is formed by cutting off a part of the cylindrical shape and providing a mounting flange at the center of the cylindrical shape. A total of six cable receivers 81 are mounted on the left and right mounting plates 82. The attachment plate 82 is formed by bending a steel plate into a V-shape, and the cable receiver 81 is provided on one piece, and the cap is provided on the other piece.
Welded to 84 and provided a pair of left and right The suspension ring 83 is provided between the above-mentioned mounting plates 82, and has a structure in which the surfaces of the mounting plate 82 and the cap 84 are welded and connected. Cap 84 is an inner support
It has a structure in which a square pipe large enough to accommodate 7 is used, and locking pins 85 are welded to the front and rear of the square pipe.

The cable take-up portion 9 is provided at the lower position of the cable retaining fitting 8 so as to be detachable via a mounting base 91, and is provided in a pair on the left and right sides of the inner support column 7. The mounting base 91 is provided with two upper and lower daruma holes 92, and the base is bolted to the inner support 7.
It is fixed to. The cable winding section 9 is
Stepped bolts 94 are arranged at predetermined intervals at the base end of an inverted L-shaped mounting bracket 93 obtained by bending an aluminum plate into a U-shape,
Four shaft holes 95 are provided. The shaft 96 is penetrated through the through hole 95. A spacer collar 97 is fitted into the shaft 96, the length is equal in the left and right directions in FIG. 1, and side plates 98 are provided on both sides.

[0011]

[How to use] In order to use the present invention, first, the switch mounting part 4
To the hanger of the switch 10 and tighten it with the nut. Next, one end of the high-voltage pull-down cable is attached to the switch, the excess length of the central part is wound around the cable take-up part 9 up to two turns, and the other end is fitted to the cable receiver 81 of the cable retaining fitting 8. I do. Then, attach the arm 3 to the switch mounting part 4
And the locking pin 42 is inserted into the fitting hole 31 and fixed. This completes the installation on the ground.

Next, a hook suspended from the winch of the working vehicle is hung on a suspension ring 83, lifted, and firmly attached to a utility pole by a chain or the like of a utility pole fastening portion 2. This completes the installation on the utility pole.

[0013]

[Effect of the Invention] By using the tool of the present invention, it is not necessary to go up and down the telephone pole many times as in the conventional construction, and it is not necessary to lift the equipment and tools on the telephone pole many times. This reduces the risk of crashes, reduces fatigue, and reduces work at complicated pole locations, reducing the risk of electric shock, enabling safer work and reducing work processes. The time can be reduced.

[0014] In the case of conventional construction, one person on the utility pole, one person for the winch operation, and one person for holding the supporting rope when lifting the equipment. This is a lightweight case, and two people when the switch is heavy. ,
And one supervisor and four or five people were working, but using the tool of the present invention, two people worked on the ground and then one person operated the winch of the work vehicle, If another person puts the hook on the suspension ring, then climbs up to the utility pole and attaches it with the chain of the utility pole fastening part 2 of the tool that has been lifted, two people can work. In addition, the number of supervisors may be three, and there is a practical effect that the number of workers can be reduced.

[Brief description of the drawings]

FIG. 1 is a left side view of the present invention.

FIG. 2 is a partial front view of the switch mounting portion of the present invention.

FIG. 3 is a perspective view of a column height adjusting unit according to the present invention.

FIG. 4 is a partial right side view of the cable stay fitting of the present invention.

FIG. 5 is a perspective view of a cable winding section of the present invention.

FIG. 6 is a front view of the mounting state of the present invention.

FIG. 7 is a front pole diagram showing an example of conventional construction.

[Explanation of symbols]

 1 Mounting frame 2 Power pole tightening part 3 Arm 4 Switch mounting part 5 Height adjustment part 6 Post 7 Inner post 8 Cable retaining bracket 9 Cable take-up unit 10 Switch 11 Mounting plate 31 Fitting hole 32 Retaining stopper 41 Outer cylinder 42 Locking pin 43 Mounting bracket 51 Locking pin 52 Retaining pin 53 Plate 61 Through hole 62 Fitting hole 71 Through hole 72 Fitting hole 81 Cable receiver 82 Mounting plate 83 Suspension ring 84 Cap 85 Locking pin 91 Mounting Stand 92 Dharma hole 93 Mounting bracket 94 Step bolt 95 Through hole 96 Shaft 97 Spacer collar 98 Side plate

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yukio Shimizu 2-6-1 Ichibancho, Aoba-ku, Sendai City Inside Yurtec Co., Ltd. (72) Inventor Kiyoshi Ueno 2-6-1, Ichibancho, Aoba-ku, Sendai City No. 21 Inside Yutec Co., Ltd. (72) Inventor Hiroshi Furudate 2-6-1 Ichibancho, Aoba-ku, Sendai-shi Intranet Co., Ltd. (72) Koji Nakamura 2-6-1 Ichibancho, Aoba-ku, Sendai-shi (72) Inventor Hitoshi Inoue 4-62 Shimotakino, Takino-cho, Kato-gun, Hyogo Pref.

Claims (1)

(57) [Scope of request for utility model registration] An electric pole fastening portion is provided above and below a mounting frame, and an arm is protruded horizontally from the mounting frame.
The arm 3 is provided with a slidable switch mounting portion 4,
A support provided with a height adjusting part 5 on the center of the switch mounting part 4
6 and a cable support is provided at the tip of the inner support 7 of the support 6.
A switch lifting tool for construction, comprising: a cable retaining member 8 provided with a cable 81 and a suspension ring 83, which is detachably provided, and a cable winding portion 9 is detachably provided at a lower portion thereof.