JPH10208571A - Tension resistant insulator protective cover and method for using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate mounting work at a high site on an electric pole of a tension resistance insulator, lessen work at a working site, and prevent damage of the tension resistance insulator by forming a cover main body by a synthetic resin based half- divided cylindrical body and openably providing a hinge part at an intermediate part, and opposing an engagement part at an open end opposed to the hinge part. SOLUTION: A cover main body 8 of a tension resistant insulator protection cover A is made of synthetic resin and consists of a half-divided cylindrical body openably linked via a hinge part 9. A tab piece 14 is erected to the outside, a lock piece 12 is released from an engagement hole 15, the cover main body 8 is expanded, a magnetic insulation body of the tension resistant insulator is fitted, covered, and protected. The tension resistant insulator in which the tension resistant insulator protection cover A is attached to a bracket on the ground is mounted, this is fitted to the top part of the electric pole, the bracket is fixed to the electric pole, a distribution wire is connected, after which the tension resistant insulator protection cover A is removed. Thereby, mounting work of the tension resistant insulator to the bracket at a high site is eliminated, and the magnetic insulation body can be protected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective cover for preventing a porcelain insulator of a tension insulator used on a power pole from being damaged, and a method of using the protective cover.

[0002]

2. Description of the Related Art Conventionally, tension insulators used by being attached to a crosspiece on a telephone pole are taken in a net bag in order to prevent a porcelain insulator having a step portion from being damaged during storage or transportation. I was trying to handle it. In addition, these tension insulators were attached to the crosspieces one by one by working at heights on utility poles.

[0003]

As described above, the former net bag containing the tension insulator is removed after the tension insulator is taken out at the construction site, and most of the net bag is discarded, generating garbage and conserving resources. Wasted. In addition, the installation of the tension insulators on the telephone poles is a dangerous operation at a high place, and it takes time and effort to mount them one by one by hand. Accordingly, an object of the present invention is to provide a tension insulator protection cover and a method of using the tension insulator protection cover which can solve the problems found in the conventional technology.

[0004]

In order to achieve the above object, a tension insulator protective cover according to the present invention has a cover main body formed of a half-cylindrical cylindrical body made of synthetic resin, and the cover main body is provided at an intermediate portion. A hinge portion is provided so as to be openable and closable, and an engaging portion is provided opposite to the open end opposite to the hinge portion so as to be removably engaged with the open end. It is attached to the insulator made of and made to attach by engaging the locking portion.

[0005] Further, as a method of using the cover, the tension insulator protective cover is mounted on a porcelain insulator of the tension insulator, and a required number of tension insulators having the tension insulator protective cover mounted on the ground are placed on the ground. Lift the arm on which the tension insulator is placed, lift it up on the pole, attach it to the pole, and fix it.After stretching the transmission and distribution line on the tension insulator between the opposite poles, By removing the tension insulator protective cover from the insulator, installation work of the tension insulator at a high place on the power pole is eliminated, and work at the construction site is reduced. Further, the tension insulator is protected by the tension insulator protection cover and is not damaged until the transmission and distribution lines have been installed. And
The protective cover for the used insulator that has been used and removed from the insulator is collected and collected for reuse.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a tension insulator protective cover according to the present invention will be described below with reference to the drawings. Tension insulator 1
As shown in FIG. 5, a bifurcated portion 3 is formed on the head of a substantially conical supporting bracket 2 and a connecting pin 4 is penetrated through the bifurcated portion 3 in a detachable manner. The support rod 5 is projected from the center of the bottom of the support fitting 2. An annular ring 6 is formed at the tip of the support rod 5. Then, a ceramic insulator 7 is attached to and fixed to the support rod 5 by being connected to the bottom of the support fitting 2. The porcelain insulator 7 is formed in a cylindrical body having an uneven outer peripheral surface.

Reference numeral 8 denotes a cover body which is attached to the peripheral surface of the ceramic insulator 7 of the tension insulator 1 to prevent breakage. The cover main body 8 is formed by integral molding of a synthetic resin such as a special polyethylene, for example, and is formed of a half-split cylinder body that is openably and closably connected via a hinge portion 9 as shown in FIG. A plurality of grooves 10 and ridges 11 are formed around the porcelain insulator 7 of the upholstery insulator 1 so as to conform to the uneven surface provided on the peripheral surface.

The cover body 8 has a locking piece 12 projecting from the center of one open end, and a hook 13 is bent at the tip of the locking piece 12. At the center of the other open end, an engaging hole 15 is formed at the base of the knob 14 so that the knob 14 protrudes outward, and the locking member 12 is removably engaged with the knob. The knob 14 has flexibility, and is provided with a non-slip surface on both front and back surfaces. Further, positioning pieces 16, 16 are formed on both sides of the knob piece 14 to facilitate the engagement of the locking piece 12 with the engagement hole 15. One end face 17 is provided on both side faces of the cover body 8.
A large opening 18 is provided at the center of the support fitting 2 so as to fit the bottom of the support fitting 2 and one end of the porcelain insulator 7, and the other end face 1
9, a through hole 20 for the support rod 5 is opened in the center.

Next, a state in which the tension insulator protection cover A thus formed is mounted on the tension insulator 1 will be described. Pick 1
The cover body 8 is expanded as shown in FIG. 5 by raising the locking piece 12 to the outside so that the locking piece 12 is disengaged from the engagement hole 15, and the ceramic insulator 7 of the tension insulator 1 is provided on one side of the expanded body. Is fitted to the other side of the opening, and the locking piece 12 is engaged with the engaging hole 15 so as to protect the tension insulator protection cover A as shown in FIG.
Can protect the porcelain insulator 7 of the tension insulator 1, and if the tension insulator 1 is stored or transported as it is, the porcelain insulator 7 is not damaged and can be handled safely. be able to. When removing the tension insulator protection cover A from the tension insulator 1, as described above, the tab 14 is used.
Is raised outward, the locking piece 12 is disengaged from the engagement hole 15, and the cover body 8 is expanded.

Next, a method of using the tension insulator protective cover according to the present invention will be described. As shown in FIG. 6, the ring 6 at the tip of the support rod 5 of the tension insulator 1 with the tension insulator protection cover A is attached to the support bracket 2 of the tension insulator 1a with the other tension insulator protection cover A attached. And one end of the connecting member 21 is pivotally supported 22 on the ring 6 at the tip of the supporting rod 5 of the connected tensile insulator 1a. Then, an attachment member 23 is attached to the connection pin 4 at the end of the support fitting 2 of the tension insulator 1 located on the upper side of the joint, and the arm member 24 is connected via the attachment member 23 as shown in FIG.
Attach to the required location.

As shown in FIG. 8, a plurality of sets of the connected tension insulators 1 and 1a are suspended and supported by a pole 26 which is erected above a lift 25 of an aerial work vehicle as shown in FIG. And raise it. Then, the lift 25 is raised to a high position as shown in FIG. 9 and is passed to a worker 28 waiting on the utility pole 27, and the arm 24 is mounted and fixed on the utility pole 27. Next, a transmission / distribution line (not shown) is stretched using the connecting member 21 at the tip of each tension insulator 1a. After being stretched on the transmission and distribution line in this way, each of the tension insulators 1 and 1a
The protective cover A for the insulator is detached and collected.

When the tension insulator protection cover of the present invention is used, the porcelain insulator 7 of each tension insulator 1, 1a attached to the arm arm 24 is connected to each tension insulator 1a by the transmission and distribution line. Until the tensioning is completed, it is covered with the tension insulator protection cover A and protected without being damaged.

[0013]

As described above, the tension insulator protective cover according to the present invention has a simple structure formed in a half-cylindrical body by a synthetic resin material, and is easily detachably attached to the tension insulator. To protect the porcelain insulator without damage. Further, as a method of using the tension insulator protection cover of the present invention, a predetermined number of tension insulators with the tension insulator protection cover attached to the arm above the ground are attached, lifted to the upper part of the pole, and the arm is fixed to the pole. Since the tension insulator protection cover is removed after the transmission and distribution lines are connected to the tension insulator, the porcelain insulator can be continuously covered and protected until the tension insulator is used. In some cases, the protection cover for the tension insulator removed from the tension insulator can be collected and collected for reuse.

[Brief description of the drawings]

FIG. 1 is a perspective view of a tension insulator protective cover according to the present invention.

FIG. 2 is a perspective view of the back side surface of FIG. 1;

FIG. 3 is a sectional view of FIG. 1;

FIG. 4 is a perspective view showing an expanded state at an open end.

FIG. 5 is a perspective view showing a state in which a tension insulator is mounted.

FIG. 6 is a perspective view showing a state in which the mounting of the tension insulator is completed.

FIG. 7 is a perspective view illustrating a method of using the present invention.

FIG. 8 is a perspective view illustrating a method of using the present invention.

FIG. 9 is a perspective view illustrating a method of using the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1a Tensile insulator 7 Porcelain insulator 8 Cover body 9 Hinge part 12 Locking piece 15 Engagement hole 24 Arm bar 27 Power pole A Tensile insulator protection cover

Claims (2)

[Claims] 1. A protective cover to be attached to an outer periphery of a porcelain insulator provided with a step portion of a tension insulator, wherein a cover main body is formed of a synthetic resin half cylinder having a step portion. A cover body provided with a hinge portion at an intermediate portion so as to be openable and closable, and an engaging portion for engaging and disengaging with an open end opposite to the hinge portion facing the hinge portion; . 2. A protection insulator according to claim 1, which is attached to a porcelain insulator of said insulator, and a required number of such insulators having said protection insulator mounted on said ground. Lift the arm on which the tension insulators are arranged, lift them up on the pole, attach them to the pole, and fix the tension insulators between the opposite poles. A method for using a tension insulator protective cover, comprising: removing the tension insulator protective cover from the cover.