JPH062426Y2 - Entry port device in drop line tube column - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a lead-in port device in a pipe column for a lead-in wire such as a power line or a communication line.

[Conventional technology]

When a power line or a communication line is drawn from a utility pole set up at the end of a road to a customer, as shown in FIG. 5, a drop-in pipe pillar P is buried in the lower part and set up at the customer's yard, and a drop wire W is formed at the upper part of the pipe pillar. It is introduced from the side entrance into the pipe pillar P, and underground wiring is performed from the lower part of the pipe pillar to the customer via the instrument box M.

Conventionally, in order to draw a service wire W into a pipe pillar of this kind, it is temporarily fastened to the pipe pillar P by using an anchoring band B, a metal fitting S, etc., and then introduced into the pipe pillar through an inlet port device A. There is.

[Problems to be solved by the device]

Conventionally, as described above, in order to draw the service wire W into the pipe pillar P, the withdrawal band B, the metal fitting S, etc., and the service entrance device A for preventing rainwater from entering the pipe pillar P and protecting the service wire W are provided. Two kinds of members were needed.

Since the service entrance device of the present invention has been devised in view of the above points, it is an object of the invention to provide a service entrance device having a function of retaining the service wire W, prevention of intrusion of rainwater into the pipe column, and protection of the service wire. And

[Means for Solving the Problems]

The present invention provides a waterproof cover having an opening communicating with a lead-in port formed on a side surface of a drop-in pipe column, a cover mounting member for supporting the waterproof cover from the back side of the drop-in pipe column, the waterproof cover and the cover. A lead-in port device for a drop-in pipe column, comprising: a fixing member for fixing a mounting member to the drop-in pipe column and a supporting member for supporting a retractable fitting of the drop-in line.

[Action]

With the above configuration, the service wire is temporarily retained by the retaining metal fittings supported by the fastener, and introduced into the interior of the service wire tube column from the lower surface side opening of the waterproof cover through the service inlet.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a drop-in pipe column P equipped with a drop-in port device 1 of the present invention.
And FIG. 2 is an enlarged perspective view of a part thereof.

Reference numeral 2 is a waterproof cover, and 3 is a cover mounting member, both of which are made of synthetic resin or the like, and are paired to be attached to the service wire tube column P in a substantially umbrella shape. Reference numeral 4 denotes a fixture, which comprises a bolt 4a and a nut 4b, and by fastening them, the waterproof cover 2 and the cover mounting member 3 are fixed to the pipe column P.

As shown in FIGS. 3 and 4, the waterproof cover 2 has a lead-in port H.
Has an opening 5 communicating with the lower surface side and is formed so as to be in close contact with a substantially half circumference of the drop-in pipe column P. Reference numeral 6 denotes a flange portion having a curved surface, which is fitted over the entire circumference of the lead-in port H and prevents the lead-in port W from being damaged by the lead-in port H.

The cover mounting member 3 has substantially the same shape and size as the waterproof cover 2, and is closely attached to the waterproof cover 2 from the opposite side with the service wire tube column P interposed therebetween.

Numerals 7 and 8 are mounting holes provided respectively at a mating portion of the waterproof cover 2 and the cover mounting member 3, and the holes 7 and 8 are fixed to the drop-in pipe column P with bolts 4a and nuts 4b.
The gap 9 on one side of the mating portion is formed to be large, and the bolt 4
The hook portion S1 of the detention metal fitting S is hooked on a and the lead-in wire W is temporarily retained.

The shape of the cover mounting member 3 need not be substantially the same as that of the waterproof cover 2, and may be, for example, a belt shape. Also, only one set of the fasteners 4 may be used, and the other end may be connected by an arbitrary one, for example, a hinge.

[Effect of device]

Since the service entrance device of the present invention is configured as described above, it is possible to obtain a service entrance device having a function of retaining the service wire without using a retaining band of the service wire as in the conventional case.

The upper part of the drop-in pipe column is simplified and the appearance is improved.

[Brief description of drawings]

FIG. 1 is a side view of a pipe column for a service wire equipped with a service entrance device of the present invention, FIG. 2 is an enlarged perspective view of a part thereof, and FIG. 3 is a partially cutaway plan view of the service entrance device of the present invention. FIG. 4 is a sectional view taken along line IV-IV in FIG. 3, and FIG. 5 is a side view of a conventional inlet device. 1 is a lead-in port device, 2 is a waterproof cover, 3 is a cover mounting member, 4 is a fixing tool, 5 is an opening, W is a lead-in wire, P is a lead-in pipe column, H is a lead-in opening, and S is a retaining fitting for the lead-in wire W.

Claims (1)

[Scope of utility model registration request] 1. A waterproof cover having an opening communicating with a lead-in port formed on a side surface of a drop-in pipe column, a cover mounting member for supporting the waterproof cover from the back side of the drop-in pipe column, and the waterproof cover, A lead-in device for a drop-in pipe column, which comprises a fastener for fixing a cover mounting member to the drop-in pipe column and for supporting an anchorage fitting of the drop-in line.