KR200226975Y1 - Optical fiber cable splice closure - Google Patents

Abstract

The present invention relates to a splice junction box having a plug that can secure the optical fiber cable to the splice junction box in a simple manner.

The splice junction box has a main body in which the tray is mounted, a cover for closing the upper surface of the main body, and a plurality of cable entry ports formed on the side of the main body. In addition, the splice junction box is provided in the cable entry port, and is provided with a cable fixing plug which can block the inside and the outside of the junction box and fix the optical fiber cable. The cable anchoring plug has one end open and the other end closed, and the closed end can be cut to receive the cable. Therefore, the cable fixing plug is detachable from the splice junction box and is convenient to use. The cable anchoring plug and the cable inserted therein are preferably enclosed in a heated or non-heat shrinkable tube so that no space is created between the inner circumferential surface of the plug and the outer circumferential surface of the cable.

Description

Fiber Optic Cable Splice Junction {OPTICAL FIBER CABLE SPLICE CLOSURE}

The present invention relates to an optical cable splice connection box, and more particularly to a splice connection box having a plug that can be fixed to the splice connection box in a simple manner.

Optical fibers are widely used in various fields such as communication and data transmission. As a result, optical fiber networks must have multiple splices for optically connecting optical fibers.

The optical fiber is generally spliced inside a junction box or a housing (hereinafter referred to as a splice junction box). This splice junction box protects the optical fiber from moisture or prevents quality degradation due to other environmental factors. In particular, it is important to protect the cable entry into the splice junctions from moisture ingress. Most of this work is carried out with the cable fixed in the Spirace splice, making it difficult and risking cable damage. In addition, such splice junctions can be splice connections from strain or torque imposed on a portion of the outer fiber optic cable of the splice junction box to maintain proper alignment and spacing therebetween and to prevent improper signal attenuation. It is desirable to protect the optical fiber inside the box.

Splice junction boxes generally have one or more brackets mounted internally or externally to provide strain relief or torsional relief to the optical fiber. In particular, the fiber optic cable reinforcement member may be attached to a bracket mounted inside the splice junction box. Therefore, no strain or torque imposed on the optical fiber cable outside the splice junction box shall be transmitted to the bracket mounted inside the splice junction box.

Referring to FIG. 1, the splice junction box 10 has a plurality of ports 18, 20, 22, 24 through which the fiber optic cable 26 passes. Because each port of the splice junction box 10 communicates with the atmosphere inside the junction box, ports that do not contain fiber optic cables have end plugs to prevent moisture or other material from penetrating through them. It is common to be shielded with a plug;

The end plug 40 has both ends closed, and an elastic sealing ring 44 is mounted on the outer circumferential surface of the front end portion inserted into the port 24, and the handle 42 is exposed at the rear end exposed from the port 24. Is formed.

This end plug 40 is removed from the port 24 of the splice junction box 10 when the cable is mounted and discarded and replaced with the fiber optic cable plug 60. In the figure, for simplicity, the optical fiber cable plug 60 to be replaced is shown mounted on another port 20.

The optical fiber cable plug 60 is provided with an elastic sealing member (not shown) to remove the difference between the outer diameter of the optical fiber cable to be inserted and the inner diameter of the optical fiber cable plug to prevent moisture or the like from penetrating from the outside. The elastic sealing member is forcibly fitted inside the optical fiber cable plug with the optical fiber cable pressed. Therefore, the elastic sealing member is manufactured so that its outer diameter matches the inner diameter of the optical fiber cable plug. However, since the outer diameter varies depending on the type of optical fiber cable used, the worker usually has an elastic sealing member having various inner diameters.

In addition, the optical fiber cable plug is provided with a plurality of parts (not shown) to impart strain relief or torsion relief to the optical fiber.

As mentioned above, in general, in the case of optical fiber cable splice junction boxes, unused ports for cables should be closed with end plugs, and in use, the end plugs should be discarded and the optical fiber cable plugs installed in place.

At this time, since the optical fiber cable plug is supplied to a plurality of parts, there is a hassle that an operator must assemble in a number of steps in the field.

An object of the present invention is to solve the problems of the end and the optical fiber cable plugs mounted in the conventional optical fiber cable splice junction box, in particular, to provide an optical fiber cable plug having both the function of the end plug and the optical fiber cable plug, The removable cable plug and the shrinkable tube are used together for ease of use.

1 is a perspective view of an optical fiber cable splice junction box with a conventional end and cable plug and a cable fixing plug of the present invention shown.

2 is a cross-sectional view of the cable fixing plug of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: splice junction box

18, 20, 22, 24: port

26: fiber optic cable

40: end plug

60: fiber optic cable plug

80: cable fixed plug

In order to achieve the above and other objects of the present invention, according to an embodiment of the present invention, the main body is mounted on the tray, the cover for closing the upper surface of the main body, a plurality of formed on one side of the main body An optical fiber cable splice connection box having a cable entry port, wherein the optical fiber cable splice includes a cable fixing plug mounted to the cable entry port to block the inside and the outside of the junction box and to fix the optical fiber cable. A junction box is provided.

The cable retaining plug is detachably detachable from the splice junction box, one end is open and the other end is closed, and the closed end can be cut to receive the cable. The cable anchoring plug and the cable inserted therein are preferably enclosed with a shrinkable tube so that no space is generated between the inner circumferential surface of the plug and the outer circumferential surface of the cable.

Hereinafter, an optical fiber cable splice connection box according to an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

Referring to FIG. 1, the optical fiber cable splice junction box 10 includes a main body 14 having a tray mounted therein, a cover 12 closing an upper surface of the main body, and a plurality of formed on one side of the main body. Includes cable entry ports 18, 20, 22, and 24. The main body 14 has a latch 16 hingedly connected to the left and right sides to fix the cover 12.

The fiber optic cable splice junction box 10 also has a cable retaining plug 80 mounted to the cable entry port.

The fixing plug 80 has a cylindrical shape in which one end is open and the other end 82 is closed, as shown in FIG. 2, and a flange 86 formed on the outer circumference thereof to match the geometry of the port. do.

Since the cable fixing plug 80 according to the present invention is closed at one end, the cable fixing plug 80 performs a conventional end plug function when mounted at the cable inlet port 22. And, like the conventional end plug, the cable fixing plug of the present invention is provided with an elastic sealing ring 44 mounted on its outer peripheral surface to block between the inner peripheral surface of the cable inlet port and the outer peripheral surface of the cable fixing plug.

When the cable inlet port equipped with the cable fixing plug 80 needs to be used, the cable inlet port is detachable. Therefore, the cable fixing plug is detached from the splice junction box to cut the end portion 82, and the cable is inserted to the cut end portion. do. Then, the cable fixing plug is completed by enclosing a part of the cable and the end portion of the cable fixing plug with a heating or non-heat shrinkable tube or the like.

Of course, there is also an operation for fixing the optical cable tension line to the tension line fixing kit 32, which is well known in the art, so a detailed description thereof will be omitted.

The completed cable fixing plug 80 is mounted to the cable entry port 18 of the optical fiber cable splice junction box as shown in FIG.

The cable fixing plug according to the present invention described above is simple in structure, and is detachably configured to be used separately from the splice junction box, and thus can perform both a conventional end plug function and a cable plug function. The cost of installing it is very reduced.

In addition, unlike conventional cable plugs, the work time is greatly shortened by using a detachable method and an easy-to-use shrinkable tube without having to assemble separate means or parts for fixing the cable inside the plug.

Claims (3)

In the optical fiber cable splice connection having a main body with a tray mounted therein, a cover for closing the upper surface of the main body, and a plurality of cable entry ports formed on the side of the main body, And a detachable cable fixing plug which is attached to the cable entry port and blocks the inside and the outside of the junction box and which can fix the optical fiber cable. The optical fiber cable splice junction box according to claim 1, wherein the detachable cable fixing plug is open at one end and closed at the other end, and the closed end can be cut to receive the cable. The optical fiber cable splice connection box according to claim 2, wherein the detachable cable fixing plug and the cable inserted therein are surrounded by a shrinking tube so that no space is generated between the inner circumferential surface of the plug and the outer circumferential surface of the cable.