JP5543764B2 - Eggplant cover - Google Patents

Description

  The present invention relates to an insulator cover attached to an insulator of a utility pole installed in a coastal area.

  In general utility poles, a binding wire wound around an insulator is used when the electric wire is retained on the insulator. However, in the utility poles installed in the coastal areas, tracking occurs due to the influence of salt contained in the seawater when it rains in the rain, or when seawater is blown by sea breezes or waves from the sea. There was something to do. In such a case, the coated surface of the electric wire may be damaged, and in the worst case, it may be a factor in causing a major accident such as a fire or a power failure. Therefore, in order to prevent tracking due to salt damage, cover the top of the insulator with a resin cover, and when the salt water contained in the rain or sea breeze is sprayed on the insulator, it prevents flooding into the insulator and suppresses tracking. It was like this.

However, in the past, the cover used for other purposes was urgently attached to the insulator, so covering the umbrella at the top of the insulator would cause a decrease in the original performance of the insulator, and the tracking between the cover and the insulator contact surface It was necessary to go around in order to check whether the cover itself was damaged.
This invention is made | formed in view of the said subject, and is providing the insulator cover which can protect the joining location of the insulator and electric wire installed in a coastal part for a long term and safely.

The invention according to claim 1 of the present invention is an insulator cover that covers an insulator having an electric wire along an upper portion thereof, and the cover body includes an insulator fitting hole that fits into the upper portion of the insulator, an insulator fitting hole, A wire passage hole through which the electric wire along the insulator passes through the inside and outside of the cover body, and the wire passage hole has a wire guide portion inclined downward on both side portions where the wire is drawn out of the cover body. It is a horizontal hole that is bent or bent in a generally U shape, and when the electric wire is inserted into the electric wire through hole , each electric wire guide part guides the electric wire that is pulled out of the cover body and faces downward. It is made to incline.

  In the invention according to claim 2 of the present invention, a drainage channel parallel to the wire passage hole is provided on the upper part of the wire passage hole of the cover main body with the separation partition wall interposed therebetween. It is characterized by inclining downward along the part.

According to a third aspect of the present invention, there is provided an insulator cover for covering an insulator having an electric wire along an upper portion thereof, wherein the cover main body is in communication with the insulator fitting hole for fitting to the upper portion of the insulator, and the insulator fitting hole. And an electric wire through hole through which the electric wire along the insulator passes through the inside and outside of the cover body. The electric wire through hole guides the electric wire drawn out of the cover main body when the electric wire is inserted and faces downward. A drainage channel that is parallel to the wire passage hole with a separation wall in between is provided at the upper part of the wire passage hole of the cover body. Inclined downward along the guide portion .

  According to the invention described in claim 1 of the present invention, even if salt water adheres to the insulator cover, water droplets can be generated even if both side ends of the wire passage hole in the insulator cover are guided by the wire guide portion and directed downward. The cover body flows down smoothly with an inclination toward the lower side of both end portions of the wire passage hole. This also prevents salt water from getting inside the insulator cover, which can reduce the rate of tracking and greatly reduce the damage and deterioration of the wire covering surface. And long-term use of eggplant is possible. Furthermore, in the past, when attaching the cover, it was necessary to have the electric wire faced downward by the operator's hand, but the electric wire would face down by simply covering the upper part of the insulator along the electric wire with the insulator cover according to the present invention. As a result, the installation efficiency of the electric wire equipment work is significantly increased.

According to the second and third aspects of the present invention, the drainage passage parallel to the wire passage hole is provided on the upper side of the cover main body with the separation wall of the wire passage hole interposed therebetween, and both end portions of the drainage passage. Is inclined downward along with the wire guide, so even if salt water flows through the wall of the cover main body and flows into the drainage channel, both ends of the drainage channel are inclined downward along the cable guide Since it flows down from the opening, the effect of preventing the salt water from adhering to the electric wire and insulator can be further enhanced.

(A) is the figure seen from the longitudinal direction of the electric wire about the use condition of the insulator cover by this implementation, (b) is a plane which opens the other cover structural member and shows the attachment state of a cover main body and an insulator FIG. (A) is a front view which shows the use condition of the insulator cover by this implementation, (b) and (c) expand a part which shows the state in which the drainage channel is formed when a cover structural member is closed. FIG. It is a longitudinal cross-sectional view which shows the use condition when the salt water of the insulator cover by this implementation is sprayed. (A) which shows other embodiment of the insulator cover of this invention is a front view, (b) is a longitudinal cross-sectional view.

Hereinafter, embodiments of the insulator cover according to the present embodiment will be described with reference to the drawings.
As shown in FIGS. 1A and 1B, the insulator cover according to the present embodiment is constituted by a pair of left and right cover constituent members 1a and 1b whose upper end portion can be opened and closed by the joint portion 12. Further, in each cover constituent member 1a, 1b, an insulator fitting hole 3 for fitting the upper part of the insulator 2 and an electric wire through hole 4 communicating with the upper side of the insulator fitting hole 3 and extending left and right are provided. The drainage passage 6 is provided in parallel with the separation partition walls 5a and 5b on the upper part of the wire passage hole 4. When one cover constituent member 1a and the other cover constituent member 1b are closed, the inside thereof is almost A T-shaped space is formed. And when the insulator cover by this implementation is attached to the insulator upper part 2a, the cover main body 1 covers the whole upper part of the insulator 2, and also the electric wire 7 drawn near to the upper end part of the insulator 2 is connected to the cover main body 1 from the electric wire through hole 4. It has been pulled out of.

The drainage channel 6 is formed by closing the cover constituent members 1a and 1b when the insulator cover according to the present embodiment is attached to the insulator 2. Specifically, as shown in FIG. 2 (b), a drainage channel constituting groove 6a having a substantially U-shape is formed on the upper side of one cover constituting member 1a with the separation wall (one side) 5a of the wire through hole 4 interposed therebetween. Further, the partition wall (the other side) 5b of the drainage channel constituting groove 6a of the other cover constituting member 1b protrudes substantially horizontally. And the protrusion front-end | tip part 8 of said separation partition (other side) 5b inclines a little upwards, and when one cover structural member 1a and the other cover structural member 1b are closed, FIG.2 (c). As described above, the projecting tip 8 of the separation partition wall (the other side) 5b of the other cover constituent member 1b presses the groove bottom surface 6b of the drainage channel constituent groove 6a of the one cover constituent member 1a and bends upward. While crimping. Thereby, the watertightness of the drainage channel 6 increases, so that the electric wire 7 and the insulator 2 are prevented from being flooded.
Reference numeral 14 denotes a valve, which plays a role of preventing direct inflow of salt water into the drainage channel 6.

  As described above, when the insulator cover according to the present embodiment is formed, for example, when raining in the coastal area is assumed, as shown in FIG. 3, raindrops containing salt in seawater that has fallen on the insulator cover are covered with the cover body 1. Even when the water flows into the drainage channel 6 through the inner peripheral side, the raindrops do not stay in the drainage channel 6 and stay on the electric wire 7 side because both ends of the bottom of the drainage channel 6 are inclined downward. It flows down. And it flows along the electric wire guide part 9 surrounding both ends of the electric wire passage hole 4, but since the electric wire guide parts 9 on both sides are inclined downward, the raindrops are inclined and smoothly removed from the insulator cover. To be drained. As a result, since raindrops do not stay in the insulator cover, the situation where the raindrops adhere to the contact portion of the electric wire 7 and the insulator 2 and tracking is greatly reduced, and the occurrence of an accident due to breakage of the covered surface of the electric wire 7 occurs. In addition to being suppressed, it is not necessary to replace the electric wire 7 or the insulator 2 in a short period of time. Further, the lower end of the cover body 1 is not in contact with the insulator 2 and has a structure that does not place a burden on the insulator 2 like the electric wire 7.

Next, a procedure for attaching the insulator cover according to the present embodiment will be described with reference to FIG.
First, as a first procedure, one cover constituent member 1 a is applied to the insulator 2, an electric wire is inserted into the electric wire through hole 4, and an upper portion of the insulator 2 is inserted into the insulator fitting hole 3.
As a second procedure, the other cover constituent member 1b is closed to the side of one cover constituent member 1a fitted to the insulator 2, and the male and female portions 10a provided at the lower ends of the cover constituent members 1a and 1b. , 10b is inserted to make it impossible to remove the insulator cover from the insulator 2.
As a third procedure, a waterproof tape (not shown) is wrapped to conceal the gap between the opening 9a of the waterproofing margin 13 continuously attached to the tip of the wire guide 9 and the wire 7 extracted from the opening 9a. .
As described above, through the above first to third procedures, the contact portion between the insulator 2 and the electric wire 7 in the insulator cover according to the present embodiment maintains high watertightness, so that the joint portion between the electric wire 7 and the insulator 2 is maintained. Will be protected from salt water.

  In the above embodiment, the cover main body 1 according to the present invention has a configuration in which the insulator 2 is sandwiched and attached by two cover constituent members 1a and 1b that can be opened and closed in a pair. As shown, the cover body 1 may be integrally formed in a bowl shape, and the cover body 1 may be configured to fit the upper part 2a of the insulator 2 even when the electric wire 7 is attached to the insulator 2. . Specifically, the present embodiment is provided with a notch portion 11 that communicates from the lower end of the cover body 1 to the wire passage hole 4, and from the upper side of the insulator 2 and the electric wire 7, the electric wire 7 passes through the notch portion 11 and the cover body on the upper portion of the insulator 2. The mode which covers is made. In addition, as long as the drainage channel 6 is provided in parallel along the wire passage hole 4, the size of the space occupied by the drainage channel 6 in the cover body 1, the cross-sectional shape, and the like are not particularly limited. In addition, since the wire guide portion 9 has a space for allowing the wire 7 to pass outside the cover body 1 and can guide the wire 7 to be extracted to the outside of the cover body 1 so as to be inclined downward, the above-described implementation In addition to the cylindrical shape as in the form, the direction may be changed by sandwiching the electric wire 7 from both sides with a clamp or the like. Further, the angle at which the wire guide portion 9 is inclined downward from the cover body 1 is not particularly limited, but may be an extreme angle that applies a strong deformation force to the wire 7.

DESCRIPTION OF SYMBOLS 1 Cover body 2 Insulator 2a Insulator upper part 3 Insulator fitting hole 4 Electric wire through-hole 5a, 5b Separation partition 7 Electric wire 9 Electric wire guide part

Claims (3)

An insulator cover for covering an insulator with an electric wire along the top, the cover main body being an insulator fitting hole that fits into the upper portion of the insulator, and an electric wire that is in communication with the insulator fitting hole and along the insulator The wire passage hole has a wire guide portion inclined downward on both sides where the wire is drawn out of the cover body , so that the wire passage hole is bent in a generally U-shape. An insulator cover, which is a bent horizontal hole, wherein each electric wire guide portion guides an electric wire drawn out of the cover body and tilts downward when the electric wire is inserted into the electric wire through hole .   At the top of the wire passage hole in the cover body, there is a drainage channel parallel to the wire passage hole across the separation wall, and both side ends of the drainage channel are inclined downward along the wire guide part The insulator cover according to claim 1. An insulator cover for covering an insulator with an electric wire along the top, the cover main body being an insulator fitting hole that fits into the upper portion of the insulator, and an electric wire that is in communication with the insulator fitting hole and along the insulator The wire passage hole has a wire guide part that guides the wire drawn out of the cover body and inclines downward when the wire is inserted. In the upper part of the wire passage hole of the cover body, a drainage channel is provided in parallel with the wire passage hole with the separation wall interposed therebetween, and both end portions of the drainage channel are inclined downward along the wire guide portion. An insulator cover characterized by that.

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