JPH11318015A - Overhead distribution line insulating cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an overhead distribution line insulating cover whose cover members can be retained quickly, securely and, furthermore, easily. SOLUTION: An overhead distribution line insulating cover is composed of a pair of approximately cylindrical cover members 2a and 2b of both sides. The one side end parts in the longitudinal direction of the respective cover members 2a and 2b can be linked with each other via a hinge 3 so as to be opened and closed freely. The other side end parts are retained with each other with required number of retainers 4 and retaining holes 5. Required pressing support members 10 are provided on the inner surfaces of the respective cover members 2a and 2b, in order to support an overhead distribution wire with pressure. A temporary retainer 6 which is longer than the retainer 4 is formed on the retaining part of one of the cover members 2a and 2b, and a temporary retaining hole 7 which can be retained freely is formed in the retaining part of the other cover member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated cover for an overhead distribution line which is externally fitted to a connection portion or a branch portion of the overhead distribution line by an indirect hot-line method and protected.

[0002]

2. Description of the Related Art Conventionally, an insulation cover for an overhead distribution line of this type is constituted by a pair of cover members having a substantially semi-cylindrical shape on both sides, and one end in the longitudinal direction of each of the cover members. The other end portion is connected freely via a hinge via a required number of engaging pieces and engaging holes, and is imaginarily provided on the inner peripheral surface of each cover member. It is known that elastic projections having a required height are provided so as to be opposed to each other so as to be pressed against an electric wire (see Japanese Utility Model Application Laid-Open No. 58-118873 and Japanese Utility Model Application No. 59-34021).

[0003] In such a conventional insulation cover for overhead distribution lines, after the cover member is opened, the elastic protruding piece is fitted to the connection portion or the branch portion of the overhead distribution line while being fitted to the outside. Thereafter, the cover member is pressed from the outside to perform closing operation, and each engaging piece is engaged with the corresponding engaging hole to be engaged. It is to be mounted with pressure contact support.

[0004]

In the above-mentioned prior art, the cover members on both sides are closed and engaged with each other against the elastic force of the elastic projections. At the time of the closing operation, an unreasonable reaction force of the elastic protruding piece acts in accordance with the pinching force from the outside, and the adaptation to the connection portion of the overhead distribution line and the like becomes very poor, and the engaging piece and the engaging hole are further reduced. The positional relationship is easily distorted, and the engaging work is very troublesome and troublesome, and the work efficiency is extremely poor. Even more, the work of installing the insulation cover for overhead distribution lines is more generally performed by the indirect hot-line method via the insulating operation rod.

The present invention solves the problems of the prior art at once, and aims to provide an insulation cover for an overhead distribution line which can quickly, reliably and easily engage a cover member. Is what you do.

[0006]

That is, the present invention comprises a pair of cover members 2a and 2b on both sides which are substantially semi-cylindrical, and one end of each of the cover members 2a and 2b in the longitudinal direction is a hinge. 3 and the other end is free to engage with a required number of engaging pieces 4 and engaging holes 5 and is provided on the inner surfaces of the cover members 2a and 2b. Is a required pressure contact supporting member 10 to be pressed against the overhead distribution line 16.
In the insulation cover for an overhead distribution line, the temporary fixing engagement piece 6 which is longer than the engagement piece 4 at one of the engagement portions of the cover members 2a and 2b. However, on the other end, an insulating cover for overhead distribution lines is characterized in that temporary fixing engagement holes 7 are formed so as to be freely engageable.

In the insulation cover for overhead distribution lines 1 according to the present invention, the cover members 2a and 2b are opened to apply the press-contact support member 10 to the connection portion 19 between the overhead distribution line 16 and the branch line 17. After being fitted to the outside while being pressed, the engaging piece 6 for temporary fixing is engaged with the corresponding engaging hole 7 for temporary fixing and temporarily fixed, and the press-contact supporting member 10 is connected to the connecting portion 19. After fitting into the outer periphery, the engaging piece 4 is
Then, the press-contact support member 10 is fitted to the connection portion 19 of the overhead distribution line 16 by press-contact support.

[0008]

Embodiments of the present invention will be described below with reference to an embodiment shown in the drawings. 1 to 4
Shows an embodiment of the present invention. In FIG.
Reference symbol b denotes a pair of synthetic resin cover members, both sides of a flat, substantially semi-cylindrical shape constituting an insulation cover 1 for overhead distribution lines, and each of the cover members 2a and 2b has one end along its longitudinal direction. Are connected integrally by a hinge 3 so as to be freely openable and closable, and the other end is freely engageable by an engagement piece 4 and an engagement hole 5 formed on both sides thereof to face each other. Reference numeral 6 denotes a temporary fixing engagement piece formed on one cover member 2a so as to be located substantially in the middle of the both-side engaging pieces 4, and 7 denotes another cover corresponding to the temporary fixing engagement piece 6. With the temporary fixing engagement holes formed in the member 2b, the temporary fixing engagement pieces 6 are formed longer than the engagement pieces 4 on both sides. Numeral 8 denotes wide fitting holes formed at both ends of each of the cover members 2a and 2b, and 9 denotes a bird having a required height of elasticity protruding in opposition along the edge of each of the fitting holes 8. The harm prevention barrier pieces 10 are cover members 2a and 2 respectively.
The required height of the elastic projection for supporting the pressure contact, which is provided on the inner peripheral surface of the cover 2a along the longitudinal direction of the cover 2b, is a cover member 2a.
2b, the opening angle regulating member 11 includes a band-shaped regulating member 12 having an engaging hole 13 extending opposite to the edge of the both-end fitting opening 8 with the hinge 3 interposed therebetween. 14
The cover members 2a and 2 are formed by appropriately adjusting the length of each regulating piece 12 and engaging with the engaging piece 14.
The opening angle of b is adjusted appropriately.
Reference numeral 15 denotes a knob piece attached to the engaging side of one cover member 2a. In addition, 16 is an overhead distribution line, 17 is a branch line connected to the overhead distribution line 16 via a connection fitting 18,
Reference numeral 19 denotes the connection portion.

In the embodiment constructed as described above, the opening angles of the cover members 2a and 2b are appropriately adjusted by the opening angle restricting member 11, and the connecting portion 19 between the overhead distribution line 16 and the branch line 17 is elastically projecting. The piece 10 is externally fitted while being applied.
Thereafter, the pressure is pressed from the outside by an insulating operating rod or the like having a holding piece at the tip, and the engaging piece 6 for temporary fixing is engaged with the corresponding engaging hole 7 for temporary fixing to temporarily fix (FIG. 5). reference). At this time, since the engaging pieces 4 on both sides are in the non-engaged state as shown in FIG. 6, the elastic protruding pieces 10 lightly press the outer peripheral surface of the connecting portion 19 respectively. The cover member 2a
Since the fitting opening 8 of 2b is formed in a wide width, not only the connecting portion 19 but also the branch curved portion of the branch line 17 can be sufficiently fitted to the outside.

When the temporary fixing of the cover members 2a and 2b is completed, the cover members 2a and 2b are insulated by an insulating operating rod or the like.
The elastic protrusion 10 is adapted to the outer peripheral surface of the connecting portion 19 while swinging b forward and reverse, and the excessive reaction force of the elastic protrusion 10 caused by the pressing force at the time of the temporary fixing is reduced to be pressed against the smooth. . Thereafter, the engaging pieces 4 on both sides are respectively engaged with the corresponding engaging holes 5 (see FIG. 9). At this time, at the time of temporary fixing, since the elastic protruding piece 10 is adapted to the connecting portion 19 in advance to reduce an unreasonable reaction force, the engaging piece 4 and the engaging hole 5 can be extremely easily positioned without being displaced. Can be engaged.
When the engaging pieces 4 on both sides are engaged with the engaging holes 5, the temporarily fixing engaging pieces 6 are disengaged through the temporarily fixing engaging holes 7 as shown in FIG. Present state. Then, the engaging pieces 4 on both sides are engaged with the corresponding engaging holes 5 to cover the cover members 2a.
Attachment of the insulation cover 1 for overhead distribution lines is completed when the 2b is engaged (see FIGS. 7 and 10).

In the above-described embodiment, the temporary fixing engagement piece 6 and the temporary fixing engagement hole 7 are formed one at the engaging portion of the cover members 2a and 2b. Alternatively, the number may be increased. Also,
Although the elastic protruding piece 10 is shown as a press-contact support member of the overhead distribution line 16, the present invention is not limited to this, and an elastic press-contact support member such as a rubber / synthetic resin foam can be adopted and used.

[0012]

As described above, according to the present invention, one of the engagement portions of the cover members 2a and 2b constituting the insulation cover 1 for the overhead distribution line is formed to be longer than the engagement piece 4 on one of the engagement portions. The temporary fixing engagement piece 6 and the temporary fixing engagement hole 7 are formed on the other side so as to be freely engageable with each other, so that the insulation cover 1 for the overhead distribution line is connected to the overhead distribution line 16 and the branch line. In order to attach the cover members 2a and 2b to the connecting portions 19, the engaging pieces 6 for temporary fixing are engaged with the engaging holes 7 for temporary fixing.
As the cover members 2a and 2b are swung, the press-contact supporting member 10 is adapted to the outer periphery of the connecting portion 19, and the unreasonable reaction force of the press-contact supporting member 10 is reduced. The cover members 2a and 2b can be very easily pressed against the smooth without causing any misalignment between the engaging piece 4 and the engaging hole 5.
In addition, it is possible to quickly and surely engage the work efficiently.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is a sectional view taken along line AA of FIG.

FIG. 5 is a sectional view of an essential part showing a temporarily fixed state of the cover members 2a and 2b.

FIG. 6 is a sectional view showing the position of the engagement piece 4 when the cover members 2a and 2b are temporarily fixed.

FIG. 7 is a front view showing a state in which the insulation cover for overhead distribution lines-1 is attached to a connection portion 19 between the overhead distribution line 16 and the branch line 17.

FIG. 8 is a sectional view taken along line BB of FIG. 7;

FIG. 9 is a sectional view taken along line CC of FIG. 7;

FIG. 10 is a sectional view taken along line DD of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulation cover for overhead distribution lines 2a and 2b Cover member 3 Hinge 4 Engagement piece 5 Engagement hole 6 Temporary fixation engagement piece 7 Temporary fixation engagement hole 10 Elastic protrusion 16 Overhead distribution wire 19 Connection part

Claims (1)

[Claims] 1. A pair of cover members 2 each having a substantially semi-cylindrical shape on both sides.
a and 2b, one end of each of the cover members 2a and 2b in the longitudinal direction is openably and closably connected via a hinge 3, and the other end thereof has a required number of engaging pieces 4 and engaging holes. 5 and an insulation cover for an overhead distribution line having a required pressure contact support member 10 provided on the inner surface of each of the cover members 2a and 2b so as to press and support the overhead distribution line 16.
In one of the engaging portions of the cover members 2a and 2b, an engaging piece 6 for temporary fixing made longer than the engaging piece 4 is provided on one of the engaging parts, and an engaging hole for temporary fixing is provided on the other. 7. An insulating cover for overhead distribution lines, wherein each of the insulating covers 7 is formed so as to be freely engageable.