JPH04101232U - Closure meeting line connection device - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] The purpose of this invention is to make it possible to easily install a meeting line without changing the current underground wiring situation using closures. [Structure] A terminal block 19 for external wiring connectable to the cable inside the closure 1 and a terminal block 19 for external wiring connectable to the cable inside the closure 1 are attached to the mounting hole 3 of the valve 2 for measuring gas pressure inside the closure formed in the closure 1 used for cable connection in underground wiring. There is a meeting line connection device for a closure which is integrally attached with a valve 2 for measuring gas pressure inside the closure.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is designed to protect cable connection parts from water intrusion inside manholes, etc. The cable is usually attached to a cable connection box called a closure. The closure is integrated with the valve for measuring gas pressure inside the closure attached to the closure connection box. A meeting room for closures equipped with external wiring terminals that can be connected to the cable inside the jacket. It relates to a line connection device.

0002

[Conventional technology]

Previously, some telephone cables contained test passes used when installing or changing telephone lines. A dedicated meeting line has been set up for discussions, and is not used in areas such as overhead wiring sections or inside buildings. It was

[Problem that the idea aims to solve]

On the other hand, in underground wiring sections, cables and cable connection parts must be watertight and airtight. Since communication is required, it is necessary to install a connection point between the meeting line and the telephone equipment. This was difficult, and as a result, there was a drawback that the meeting line could not be used. Therefore, the purpose of this invention is to accommodate meeting lines without changing the current underground wiring situation. An object of the present invention is to provide a meeting line connection device for closures that can be easily installed. Ru.

0003

[Means to solve the problem]

In other words, the present invention is a watertight/airtight cable used for cable connections in underground wiring. Attach the valve for measuring gas pressure inside the closure formed on the closure of the connection box. Terminal for external wiring that can be connected to the cable inside the closure for the mounting hole for A closure assembly in which the valve and the valve for measuring the gas pressure inside the closure are integrally installed. It is located on the line connection device.

0004

[Effect] In the case of a meeting line connection device for closures configured in this way, the cable connection There is no change in the closure itself used for the telephone line, and the closure used for the telephone line remains the same as before. Although it can be used to connect the The gas pressure inside the closure is installed in the mounting hole for attaching the gas pressure measurement valve. In addition to the measurement valve, a terminal for external wiring is attached. Connect the meeting line to the terminal and use it as a test pass used when installing or changing telephone lines. Can talk easily.

[0005]

[Effect of the idea]

In this way, this invention facilitates meeting lines without changing the current underground wiring situation. can be installed to easily make test calls when installing or changing telephone lines. effective.

[0006]

【Example】

Next, the configuration of an embodiment of the present invention will be explained with reference to FIG. Claw of watertight/airtight cable connection box used for cable connection in underground wiring. A valve 2 for measuring gas pressure inside the closure 1 is attached to the closure 1. A mounting hole 3 is formed in which the flange of the T-shaped support 4 is inserted. The joint part 5 is pressed against the inner surface of the closure 1 through an O-ring 6 so as to maintain watertightness and airtightness. With the cylindrical part 7 sandwiching the earth terminal 8, attach it via the screw 9 and nut 10. The terminal screw 11 is attached to the earth terminal 8 with a washer 12 and a spring washer 13. Obsessed through. A T-shaped joint is connected to the outer end of the cylindrical portion 7 of the support body 4 via a nut 14 and an O-ring 15. A shaped hollow attachment body 16 is attached to maintain watertightness and airtightness, and the attachment body 1 The above-mentioned valve 2 for measuring gas pressure inside the closure 1 is connected to the O-ring 1 at one end of the left and right ends of the closure 1. It can be mounted to maintain watertightness and airtightness by screwing in through the mounting body 16. At the other end of the left and right side, there is a wire for connecting to the telephone line inside the closure 1 via the electric wire 18. The terminal block 19 can be screwed in through the O-ring 20 to maintain watertightness and airtightness. The insulating material block 21 of the terminal block 19 has an end for external wiring. The terminal 22 is attached by embedded molding, and the terminal 22 and the inside of the terminal block 19 are A protective cap 23 made of insulating material for protecting the connection state with the electric wire 18 is attached to the terminal 22. It is installed in a manner that prevents leakage of the corrosion prevention grease applied to the connection part with the electric wire 18. At the same time, the above-mentioned valve 2 for gas pressure measurement and the terminal block are installed at both left and right ends of the mounting body 16. A cap nut-shaped cap for keeping each lock 19 covered when not in use. 24 and 25 are attached, and a flang which communicates with the through hole 26 of the cylindrical portion 7 of the support body 4 is provided. The screw hole 27 of the screw part 5 has a grounding hole 28 through which the electric wire 18 can be inserted. terminal screws 29 are attached.

[0007] Next, the operation of this embodiment will be explained. In the case of a meeting line connection device for closures configured in this way, the cable connection There is no change in the closure 1 used for the telephone line, as before. Although it can be used to connect cables, the closure formed in closure 1 The above-mentioned closure is inserted into the mounting hole 3 for attaching the valve 2 for measuring the gas pressure inside the camera 1. In addition to the valve 2 for measuring the gas pressure inside the carrier 1, a terminal block 19 for external wiring is attached. Therefore, connect the meeting line to this external wiring terminal block 19 and connect the telephone line. Test calls used when installing or changing lines can be easily made.

[0008] Next, FIG. 2 shows another embodiment of the present invention, in which the inside of the closure 1 is Connect the gas pressure measurement valve 2 to the telephone line in the closure 1 via the electric wire 18 The terminal block 19 for Instead, it can be of any shape that corresponds to the positional relationship with surrounding equipment, etc., for example, with emphasis on workability. Other than being attached to the Y-shaped joint-shaped hollow mounting body 30, the structure, operation, and effect are the same as before. This is the same as the embodiment described above.

[Brief explanation of drawings]

FIG. 1 is a cutaway front view of an embodiment of the present invention.

FIG. 2 is a partially exploded perspective view of another embodiment of the present invention.

[Explanation of symbols]

1 Closure 2 valve 3 Mounting hole 4 Support 16 Mounting body 19 Terminal block

Claims (1)

[Scope of utility model registration request] [Claim 1] A cable inside the closure can be connected to a mounting hole formed in the closure of a watertight/airtight cable connection box used for cable connection in underground wiring for installing a valve for measuring gas pressure inside the closure. A meeting line connection device for a closure, characterized in that an external wiring terminal and the valve for measuring gas pressure inside the closure are integrally attached.