JPH07201504A - Arrester cover - Google Patents

Abstract

PURPOSE:To prevent a ground-fault accident due to a bird injury by covering an arrester. CONSTITUTION:A small-diameter cylinder 10 is connected to the upper end of a large-diameter cylinder 9. The cylinders 10, 9 are longitudinally split, a pair of left and right cover halves 8b in which collar pieces 11a', 11b', 12a', 12b' protrude from split edges are formed, the one piece 11a' of the cylinder 9 is openably coupled as a hinge, locking pieces 15, 15 protrude from the other piece 11b' of the cylinder 9, and an engaging hole is opened at the other. Locking pawl pieces 17, 17 protrude from the pieces 12a', 12b' of the one cover half in the cylinder 10, engaging holes are opened at the pieces of the half 8b, an engaging groove to be engaged with a rib 7 of a connector 6 with leads is formed at an inner wall of the cylinder 10, a space in contact with a cap 4 protrude from an inner peripheral wall of the cylinder 10, and an insulating tool grasping piece 22 protrude from its outer periphery.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arrester cover mounted on a so-called lightning arrester of a so-called pole-mounted device mounted on an upper portion of a utility pole.

[0002]

2. Description of the Related Art Conventionally, such an arrester has not been provided with a cover or the like for preventing a ground fault accident.

[0003]

However, in the currently used arrester, the structure between the cap attached to the charging part of the arrester and the connector with the connecting leads and between the lower end of the cap and the insulator body is used. There are upper gaps, and twigs, wires, etc. carried by birds may hit these gaps, causing a ground fault accident with the ground such as a wire. Therefore, an object of the present invention is to provide an arrester cover for solving such a problem.

[0004]

In order to achieve such an object, the arrester cover of the present invention is connected to the upper part of the arrester at the upper end of a large-diameter cylindrical portion for covering the cap attached to the charging part of the arrester. A small-diameter cylindrical part that covers the lower part of the leaded connector is connected in series, and each of these cylindrical parts is divided into two parts in the vertical direction to form a pair of left and right cover halves with flange parts protruding from each divided edge. , These cover halves are openably and closably connected to each other by using one flange piece of the large-diameter tubular portion as a hinge, and the other jaw piece of the large-diameter tubular portion is provided with a locking claw piece protruding from one side and engaged with the other side. A dowel hole is opened, and a locking claw piece is projectingly provided on each collar piece of one cover half body in the small-diameter cylindrical portion.
An engaging hole is opened in each flange piece of the other cover half body, and an engaging groove for engaging the rib of the leaded connector is provided on the inner wall surface of the small-diameter cylinder portion, and the inner peripheral wall surface of the large-diameter cylinder portion. A spacer that abuts on the cap, and a gripping piece of the insulating tool is projected on the outer peripheral surface.

[0005]

In each cover half, the hinge is used as a fulcrum to expand the divided edge, the gripping piece is sandwiched by the insulating tool, the arrester is accommodated in one cover half, and the rib of the connector with lead is fitted in the engaging groove. And position them, cover the other cover half with one cover half, sandwich the opposing brim piece with an insulating tool, and lock each locking claw piece in the engagement hole. This completes the mounting on the arrester.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the figure, 1 is an arrester, and this arrester 1 is an insulator main body 2 formed by providing protruding annular portions in a plurality of stages.
The charging part 3 is provided on the upper part of the above, and the cap 4 is attached to the charging part 3. Then, the leaded connector 6 is connected to the connecting portion 5 protruding above the cap 4. A rib 7 is provided around the lower portion of the leaded connector 6.

Reference numeral 8 is an arrester cover for covering the lower portions of the cap 4 and the connector 6 with leads. The arrester cover 8 has a large-diameter cylindrical portion 9 that covers the cap 4.
A small-diameter cylindrical portion 10 for covering the lower portion of the leaded connector 6 is connected to the upper end of each of these, and both cylindrical portions 9 and 10 are vertically divided into two halves to obtain flange pieces 11a and 11 having a required width at the divided edges.
b, 11a ', 11b' and 12a, 12b, 12
It is formed of cover halves 8a, 8b having a ', 12b' projecting therefrom.

In the large-diameter cylindrical portion 9, one flange piece 11 is provided.
a and 11a 'are connected by a hinge 13 so as to be openable and closable, and thickened portions 14, 14', 14 and 14 'are provided opposite to each other at the upper and lower positions of the other flange pieces 11b and 11b' as shown in FIG. ,
Locking claw pieces 15 and 15 are provided on the surface of one of the thick portions 14 ′ and 14 ′ facing the thick portions 14 and 14, and the other thick portion 14 and 14 has the locking claws. Engagement holes 16 and 16 are opened facing the pieces 15 and 15.

Further, in the small-diameter cylindrical portion 10, the collar pieces 12a, 1
2a ', 12b, 12b' are formed to be thick as a whole as shown in FIGS. 1 to 3, and are formed on the surfaces of one of the opposing flange pieces 12a ', 12b' facing the flange pieces 12a, 12b. The locking claw pieces 17, 17 are provided so as to project, and the collar piece 12
a, 12b facing the locking claw pieces 17, 17, the locking hole 1
Opened 8 and 18. Further, an engaging groove 19 for engaging the rib 7 of the leaded connector 6 is provided on the lower portion of the inner wall of the small-diameter cylindrical portion 10.

Further, the large-diameter cylindrical portion 9 has a spacer 20 for keeping a space from the cap 4 at an intermediate height position on the side surface of the inner wall.
Is horizontally provided, and a gripping piece 22 sandwiched by the insulating tool 21 is provided at a position near the collar piece 11b on the outer peripheral surface. The large-diameter cylindrical portion 9 has a length such that its lower end is located below the cap 4 that covers the uppermost charging portion 3 of the insulator main body 2 of the arrester 1.

Next, a method of attaching the arrester cover 8 thus constructed will be described. As for the arrester cover 8, as shown in FIG. 6, the cover halves 8a and 8b are opened, and the gripping piece 22 provided on the outer peripheral surface of the arrester cover 8 is sandwiched and lifted by an insulating tool 21 called a hot stick,
When one cover half body 8a is covered on the half body of the arrester 1 and the rib 7 of the leaded connector 6 is fitted into the engagement groove 19 provided in the small diameter cylindrical portion 10 of the arrester cover 8 for positioning as shown in FIG. At the same time, the arrester cover 8 is suspended in suspension from the arrester 1. By this positioning, the small-diameter cylindrical portion 10 covers the half body of the leaded connector 6, the lower end of the large-diameter cylindrical portion 9 covers the upper half of the projecting annular portion of the insulator body 2, and the spacer 20 provided in the middle is provided. Cap 4
The half of the circle is sandwiched and the half of the arrester 1 is covered by the cover half 8a.

Therefore, the cover half body 8a is covered with the other cover half body 8b in the same manner as described above, and the thick portions 14, which are opposed to each other,
As shown in FIG. 8, 14 ′ is sandwiched between insulating tools 20 and the locking claw pieces 15, 15 are locked in the engaging holes 16, 16.
(See FIG. 9) In addition, the collar pieces 12b and 12b 'are attached to the insulating tool 2
It is sandwiched by 1 and the locking claw piece 17 is locked in the engagement hole 16. Then, the arrester cover 8 is attached 18 with the insulating tool 21.
Rotate it by 0 degree, sandwich the brim pieces 12a and 12a 'with the insulating tool 21, and lock the locking claw piece 17 in the locking hole 18,
Installation is complete.

[0013]

As described above, the arrester cover of the present invention can be installed while electricity is being applied by using an insulating tool as in the embodiment, and the arrester cover of the embodiment is 4
It can be easily fixed by locking the locking claw pieces in the engaging holes at some places. Then, the space between the lower part of the connector with leads connected to the arrester and the protruding annular part at the top of the insulator body is completely covered to hide the structural gap above and below the cap, and the bird can be carried into this gap. It is possible to prevent a ground fault accident caused by a twig, a wire or the like being touched.

[Brief description of drawings]

FIG. 1 is a front view of an arrester cover of the present invention.

FIG. 2 is a side view mainly showing a joint portion of the arrester cover.

FIG. 3 is a plan view of an arrester cover.

FIG. 4 is a front view of a half of the arrester cover.

FIG. 5 is a front view showing a usage state of the arrester cover.

FIG. 6 is a perspective view showing a mounting order of arrester covers.

FIG. 7 is a perspective view showing a mounting order of arrestor covers.

FIG. 8 is a perspective view showing a mounting order of arrester covers.

FIG. 9 is a perspective view showing the order of mounting the arrester cover.

[Explanation of symbols]

 1 arrester 3 charging part 4 cap 6 connector with lead 7 rib 8 arrester cover 8a, 8b cover half body 9 large-diameter tubular part 10 small-diameter tubular part 11a, 11a 'flange piece 11b, 11b' collar piece 12a, 12a 'collar piece 12b , 12b 'Collar piece 13 Hinge 15,15 Locking claw piece 16,16 Engagement hole 17,17 Locking claw piece 18,18 Engagement hole 19 Engaging groove 20 Spacer 21 Insulating tool 22 Gripping piece

Claims (2)

[Claims] 1. A small-diameter cylindrical portion for covering a lower portion of a leaded connector connected to an upper portion of the arrester is connected to an upper end of a large-diameter cylindrical portion for covering a cap attached to a charging portion of the arrester. Each of the cylinders is divided into two parts in the vertical direction, and a pair of left and right cover halves are formed by projecting flange pieces at the divided edges, and these cover halves hinge one collar piece of the large diameter cylinder part. As a large diameter cylinder part, the other flange part of the large diameter cylinder part is provided with a locking claw piece on one side and an engagement hole is opened on the other side. A projecting locking claw piece on each of the collar pieces, an engaging hole is formed on each of the collar pieces of the other cover half body, and a rib of the leaded connector is engaged with the inner wall surface of the small-diameter tubular portion. Ares characterized in that a mating groove is provided, and a gripping piece of the insulating tool is projectedly provided on the outer peripheral surface. Tar cover. 2. The arrester cover according to claim 1, wherein a spacer that abuts against the cap is provided on an inner peripheral wall surface of a large-diameter cylindrical portion that covers the cap attached to the charging portion of the arrester.