JPH017980Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a connector cover that is attached to the connection part of an overhead electric wire or a branch part of an electric wire where a branch line is pulled out from an overhead electric wire, and in particular, it completely prevents rust and corrosion at the electric wire joint part. It is characterized by the fact that it has been devised to maintain watertightness as much as possible.

This type of connector cover, which has been known for a long time, has a gap between the wires at the part that holds the wires at both ends, and rainwater and moisture can enter the inside through this gap and become trapped, causing corrosion of the wire joints. This may cause electrical failure.

In view of these conventional shortcomings, the applicant has already filed an actual application.
No. 58-156305, he filed an application for a device in which a lid was provided at the outer end of the holding cylinder for the main wire on the drawer side, and
No. 58-14016, an application was filed for a device in which a sealing member made of a butyl rubber compound was applied to the inner side of the wire clamping portion provided at both ends to close the gap between the wire and the wire, but the former device In addition, the latter design had the problem that the compound would flow out from the gap between the wire and the wire clamping part, which would impair the watertightness.

Therefore, the present invention aims to provide a connector cover with excellent watertightness by combining and utilizing the features of the previously applied inventions. The gist is to apply a sealing member such as a butyl rubber compound to the inner surface. That is, in the present invention, an elliptical cylindrical body made of synthetic resin is divided in the longitudinal direction to form a half-split elliptical cylindrical cover body, and the cover body has an engaging piece that can be expanded freely at the outer edge of the divided part. Further, inside the cover main body, there is provided a housing section approximately in the center for accommodating the electric wire joint part covered with a sleeve, and a holding cylinder for the main wire on the inlet side is provided on one of the left and right sides of the housing section. At the same time, holding cylinders for the main wire and the branch line on the drawer side are arranged vertically in the other side of the housing part, and a lid body is provided at the outer end of each holding cylinder, and a lid body is provided at the outer end of each of the holding cylinders. forming a dividing line, and furthermore,
A sealing member made of a butyl rubber compound is coated on the inner surface of each holding cylinder, and a release paper is held between the sealing members in alignment with the dividing line of the lid. .

Embodiments of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a cover body made by dividing an elliptical cylindrical body made of a semi-rigid synthetic resin having elasticity such as polyethylene resin into half along a straight line in the longitudinal direction at one edge on the long diameter side. The cover main body 1 has engaging pieces 3a and 3b arranged opposite to each other on the outer edge of the divided portion 2. As shown in FIG. One of the engagement pieces 3a is provided with a protrusion 4a having a downward hook at the tip at the center of the inner side, and the other engagement piece 3b is provided with an upward hook at the tip at the bottom of the inner side. A protrusion 4 that detachably engages with the protrusion 4a.
It forms b.

Inside the cover body 1, a compression sleeve E was attached to the conductor wire D which was exposed by peeling off the insulation coating C of the main wire A and the branch wire B, approximately at the center in the longitudinal direction, and was tightened and fixed. A housing part 5 for housing the electric wire joint part F is provided, and a holding cylinder 7 for the main wire A on the inlet side is provided on one of the left and right sides of the housing part 5 via a tapered part 6.
At the same time, on the other side, holding tubes 8 and 9 for the main wire A and the branch wire B on the draw-out side are placed vertically and connected in a continuous manner to communicate with each other. Furthermore, lids 10, 11, 12 are provided at the outer ends of these holding cylinders 7, 8, 9, respectively.
At the same time, each lid body 10, 11, 12 is provided with a dividing line 1 corresponding to the dividing point 2 of the cover body 1.
3 will be provided. In addition, the main electric wire A is placed in the center of the lid body 10.
An insertion hole 14 is provided, and a cut line 15 is provided at the periphery of the insertion hole 14 perpendicularly to the parting line 13.

Further, on the inner wall of the cover body 1, two triangular projections are provided on the left and right sides of the housing portion 5 to form stoppers 16, 16 for preventing movement of the wire joint F and the compression sleeve E. , trapezoidal protrusions are provided oppositely to each other at positions outside these stoppers 16, 16 to support wire supports 17, 17.
form. Furthermore, a plurality of protrusions are provided on the inner wall of each of the holding cylinders 7, 8, and 9 at equal intervals in the circumferential direction to form gripping portions 18 that contact the peripheral surfaces of the main wire A and the branch wire B.

A sealing member 19 is applied to the inner surface of each holding cylinder 7, 8, and 9. This sealing member 19 is made of a butyl rubber compound with excellent weather resistance, very low gas permeability, and viscosity. It is made into a split shape, and a release paper 20 is further sandwiched between the cuts.

Next, to explain the use of the connector cover of the present invention formed in this way, FIGS. 8 and 9 show that a branch wire is attached at a point where the insulation coating C in the middle of the main wire A is peeled off and the conductor D is exposed. This shows an example of use for a wire joint F covered with a compression sleeve E while the conductor D of B is in contact with the wire joint F.
a, 3b in the front-rear direction to open the dividing point 2, and after peeling off the release paper 20 sandwiched between the sealing member 19 applied to the inner surface of each holding cylinder 7, 8, 9, remove the connector cover. The engaging piece 3 is placed over the electric wire joint part F and the electric wire joint part F is housed in the housing part 5.
If a and 3b are aligned and the protrusions 4a and 4b are pressed into engagement with each other, a wire joint F is formed as shown in FIG.
Both ends of the compression sleeve E are prevented from sliding by stoppers 16, 16 provided on both left and right sides of the housing portion 5,
The main wire A is supported by the support part 17 and the holding cylinders 7 and 9, and the branch line B is supported by the support part 17 and the holding cylinder 8. While being held between the grips 18 made up of a plurality of protrusions, the gap is filled and sealed with a viscous sealing member 19 to maintain watertightness.
Then, the sealing member 19 that becomes surplus by sandwiching the main wire A or the branch wire B is spread with its own viscosity and fills each holding cylinder 7, 8, 9, but if there is any surplus It is filled in the corner portion 6 and the like. Also, at this time, the sealing member 19 is
1 and 12 and does not protrude outside the holding cylinders 7, 8, and 9, the watertightness described above will not be impaired, and the outside will not become dirty or look unsightly.

In addition, in the usage example in which the main wire A and the branch wire B are joined as shown in FIGS. 10 and 11, the holding cylinder 9 that is not used is closed by the lid 12,
Furthermore, since the inside is filled with the sealing member 19, rainwater, moisture, etc. do not enter.

As described above, the connector cover of the present invention is split in half and can be expanded freely, and the electric wires are attached to the outer ends of each holding tube that holds the electric wires, which is provided on both the left and right sides of the housing section that accommodates the electric wire joints. A lid body with a dividing line that can be taken in and out is provided, a sealing member made of a butyl rubber compound is applied inside each holding cylinder, and a release paper is sandwiched between the sealing members. By peeling off the paper pattern and sandwiching the electric wire between the sealing members, the gap between the electric wire and the holding cylinder is sealed with the sealing member to make it watertight, and the outer end of each holding cylinder is further closed with a lid body. This has the advantage that it prevents the infiltration of rainwater and moisture, thereby preventing the electric wire joints from rusting or corroding and causing electrical failure, and provides sufficient protection.

[Brief explanation of the drawing]

The figures relate to an embodiment of the present invention, and Fig. 1 is a perspective view from the drawer side, Fig. 2 is a perspective view from the drawer side, Fig. 3 is a front view, Fig. 4 is a left side view, and Fig. 4 is a left side view. Figure 5 is a right side view, Figure 6 is a front sectional view, Figure 7 is a third
8 is a front view of the used condition, FIG. 9 is a sectional view of the same as above, FIG. 10 is a front view of the used condition where only the branch line is drawn out, and FIG. 11 is a sectional view of the same as above. be. 1...Cover body, 2...Divided part, 3a, 3
b...Engagement piece, 5...Accommodation part, 7, 8, 9...Holding tube, 10, 11, 12...Lid body, 13...Parting line, 19...Sealing member, 20...Separation Pattern, A...
Main wire, B...branch line, E...compression sleeve,
F...Electric wire joint.

Claims (1)

[Scope of utility model registration request] An elliptical cylinder made of synthetic resin is divided in the longitudinal direction to form a half-split elliptical cylinder-shaped cover body, and an engaging piece is provided oppositely to the outer edge of the divided part so as to be freely expandable, and Inside the cover main body, there is provided a housing section approximately in the center for accommodating the electric wire joint part covered with a sleeve, and a holding cylinder for the main wire on the inlet side is provided extending from one of the left and right sides of the housing section, and Holding cylinders for the main wire and branch wire on the drawer side are arranged vertically in the other side of the storage part, and a lid is provided at the outer end of each holding cylinder to form a dividing line on the lid. Furthermore, a sealing member made of a butyl rubber compound is coated on the inner surface of each holding cylinder, and a release paper is held in the sealing member in alignment with the parting line of the lid. Features a connector cover.