KR20200096885A - Emergency bridger for optical cable and emergency kit using the same - Google Patents

Abstract

The present invention relates to an optical cable emergency recovery bridger and an optical cable emergency recovery kit using the same. The optical cable emergency recovery bridger comprises: a head into which a damaged optical fiber is inserted; an adapter coupled to the head and having a space for optically connecting the damaged optical fiber and the recovery optical fiber; and a connector fastened to one end of the adapter and inputting the recovery optical fiber. The head includes a first body having an optical fiber insertion hole into which the damaged optical fiber is inserted, a push button inserted into one side of the first body and fixing the damaged optical fiber, and a second body formed to be in contact with the first body, coupled to the adapter, and having a through hole formed to communicate with the optical fiber insertion hole.

Description

An optical cable emergency recovery brigger and an optical cable emergency recovery kit using the same {EMERGENCY BRIDGER FOR OPTICAL CABLE AND EMERGENCY KIT USING THE SAME}

The present invention relates to an optical cable emergency recovery brizzer and an optical cable emergency recovery kit using the same, and to an optical cable emergency recovery brizzer capable of quick emergency recovery without fusion splicing when an optical cable is damaged, and an optical cable emergency recovery kit using the same .

An optical cable is a communication medium using optical fibers, and because it is a communication method using light, data transmission speed is several tens of times faster than a communication method using electrical signals. These optical cables are put in a sheath to protect the optical fiber to endure various external environments, and include an optical fiber, a tube surrounding the optical fiber, an inner jacket made of a steel material such as Kevlar, and an outer jacket made of plastic.

On the other hand, if the optical cable is damaged or damaged, communication will be cut off.To this end, in order to recover the disconnection, the cut part is connected with various types of connection means to reconnect the cut part, for example, by fusion splicing. Is done. Fusion splice is one of the methods of splicing optical fibers. It refers to a method of splicing optical fibers by heating and fusing the ends of the optical fibers after aligning the axis of the optical fiber with an imaging device and a small motor. Such fusion splicing can be a solution to damaged optical cables, but since fusion splicing of optical cables takes a lot of time, the optical cables must be urgently restored before splicing.

In general, an optical cable for emergency recovery for emergency recovery of an optical cable is designed to be convenient to use by connecting a common connector to both ends of an optical cable and winding it around a bobbin so that it is convenient to install a place where urgent connection is needed until the normal recovery of the damaged optical cable.

However, it is common for the optical fiber to be cut in an irregular shape, and in order to insert and fix the damaged optical cable in the recovery device for optical connection between the optical cable for emergency recovery and the damaged optical cable, it is inconvenient for the operator to continuously hold the optical cable. there was.

In addition, in the case of an optical cable composed of a plurality of optical fibers when both sides of the cut optical fiber are connected, there is a problem that it is not clearly distinguished which optical fiber for recovery is connected to the damaged optical fiber.

It is an object of the present invention to solve the above and other problems. Another object is to provide an optical cable emergency repair bridging device that can quickly recover in case of damage to an optical cable, and an optical cable emergency repair kit using the same.

According to an aspect of the present invention to achieve the above or other object, the damaged optical fiber is inserted into the head; An adapter coupled to the head and having a space for optically connecting the damaged optical fiber and the recovery optical fiber; And a connector fastened to one end of the adapter and into which the optical fiber for recovery is introduced, wherein the head includes: a first body having an optical fiber insertion hole into which the damaged optical fiber is inserted; A push button inserted into one side of the first body and fixing the damaged optical fiber; And a second body formed to be in contact with the first body, coupled to the adapter, and having a through hole formed to communicate with the optical fiber insertion hole. Can be.

According to an aspect of the present invention, the head is accommodated in the interior of the second body, and provides a matching gel accommodation space in which a matching gel is provided between the stepped interior of the second body. It may further include a cylinder-shaped cap.

According to an aspect of the present invention, a matching gel supply passage capable of refilling the matching gel in the matching gel accommodation space may be formed in the second body.

According to an aspect of the present invention, a first ferrule provided between the head and the adapter and on which the damaged optical fiber is located; A second ferrule provided between the connector and the adapter to place the recovery optical fiber; And a sleeve surrounding the first ferrule and the second ferrule, and the sleeve may have a clearance formed along a length direction.

According to an aspect of the present invention, an optical cable for recovery optically connected to a damaged optical cable; A bobbin on which the recovery optical cable is wound; A protective cover provided on one side of the bobbin and at least partially opened and closed to allow the recovery optical cable to be drawn out; The recovery optical cable is a splitter for separating into a plurality of branch cables; And an optical cable emergency recovery bridger that is connected to the ends of the plurality of branch cables to recover a plurality of damaged optical fibers, wherein the optical cable emergency recovery bridging device includes an optical fiber insertion hole into which the damaged optical fiber is inserted. A first body that is inserted into one side of the first body, and a push button that fixes the damaged optical fiber; and a penetration formed to contact the first body and fastened to the adapter, and formed to communicate with the optical fiber insertion hole A head including a second body having a hole; An adapter coupled to the head and having a space for optically connecting the damaged optical fiber and the recovery optical fiber; And a connector fastened to one end of the adapter and into which the optical fiber for recovery is introduced.

According to an aspect of the present invention, the plurality of branch cables may further include a bridge holder to which each of the branch cables is fixed, and the plurality of branch cables may be distinguished by a label composed of a combination of colors and numbers.

The effect of the optical cable emergency recovery bridging device and the optical cable emergency recovery kit using the same according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, there is an advantage in that the damaged optical cable can be quickly and urgently restored without fusion splicing.

According to at least one of the embodiments of the present invention, it is possible to stably perform optical connection by using a matching gel even when cutting an optical fiber, and by attaching a label with a combination of color and number to each alignment brizzer. There is an advantage in that it is easy to distinguish a plurality of brizzers.

According to at least one of the embodiments of the present invention, a beginner can easily use it by utilizing an optical fiber insertion hole and a push hold button, and quick and reliable recovery without using an optical core fusion splicer or an optical core dedicated cleaver There is an effect that it is possible.

According to at least one of the embodiments of the present invention, since the matching gel or brizzer can be replaced, it can be used more than 100 times and can be used semi-permanently, and a plurality of optical fibers can be connected at once, and the maximum It has the advantage of being able to select according to the user's needs up to 50m extended recovery.

Further scope of applicability of the present invention will become apparent from the detailed description below. However, since various changes and modifications within the spirit and scope of the present invention can be clearly understood by those skilled in the art, specific embodiments such as the detailed description and preferred embodiments of the present invention should be understood as being given by way of example only.

1 is a perspective view of an optical cable emergency recovery kit related to the present invention.
2 is a partially enlarged view of a branch cable according to the present invention.
Figure 3 is a perspective view of a bridger according to the present invention.
Figure 4 is an exploded perspective view of the brizzer related to the present invention.
5 is a perspective view as viewed from the rear of the optical cable emergency recovery kit related to the present invention.
6 is a cross-sectional view of a bridger according to the present invention.
7A is a bridge holder according to the present invention, and FIG. 7B is a perspective view of an optical cable mounted on the bridge holder according to the present invention.
Figure 8 shows a recovery optical cable related to the present invention.
9 is a diagram showing a number of brizzers to which the labels associated with the present invention are attached.

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same reference numerals are assigned to the same or similar elements regardless of the reference numerals, and redundant descriptions thereof will be omitted. The suffix "unit" for the constituent elements used in the following description is given or used interchangeably in consideration of only the ease of writing the specification, and does not itself have a distinct meaning or role from each other. In addition, in describing the embodiments disclosed in the present specification, when it is determined that a detailed description of related known technologies may obscure the subject matter of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are for easy understanding of the embodiments disclosed in the present specification, and the technical idea disclosed in the present specification is not limited by the accompanying drawings, and all modifications included in the spirit and scope of the present invention It should be understood to include equivalents or substitutes.

Terms including ordinal numbers, such as first and second, may be used to describe various elements, but the elements are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another component.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

In the present application, terms such as "comprises" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof does not preclude in advance.

According to an embodiment of the present invention, there is provided a brizzer 100 capable of emergency recovery in the field when an optical cable is damaged, and an optical cable emergency recovery kit 200 using the same, FIG. 1 is an optical cable emergency recovery related to the present invention It is a perspective view of the kit 200, FIG. 2 is a partially enlarged view of the branch cable 250 related to the present invention, FIG. 3 is a perspective view of the bridger 100 related to the present invention, and FIG. 4 is a bridger related to the present invention. It is an exploded perspective view of (100).

First, referring to FIG. 1, an optical cable emergency repair kit 200 (hereinafter referred to as'recovery kit 200') according to an embodiment of the present invention provides an emergency repair of a damaged optical cable by optical connection with a damaged optical cable. A recovery optical cable 210 for, a bobbin 220 on which the recovery optical cable 210 is wound, and at least a part of the bobbin 220 are opened and closed so that the recovery optical cable 210 is A protective cover 230 to be drawn out to the outside, and an optical cable emergency recovery bridger 100 (bridger) (hereinafter referred to as'Bridger' (hereinafter referred to as'Bridger') that is connected to the end of the recovery optical cable 210 to recover a number of damaged optical fibers. 100)').

Both ends of the recovery optical cable 210 are connected to each of the brizzers 100, and more specifically, the recovery optical cable 210 is separated into a plurality of branch cables 250 by a splitter 240, , The bridger 100 is formed at an end of each branch cable 250. A moving handle 270 is formed on one side of the bobbin 220 to carry the recovery kit 200, and a pedestal 290 is provided at the lower end.

At this time, the protective cover 230 includes two plates 231 and 232 having a substantially semicircular shape, and adjacent portions of the two plates 231 and 232 are coupled by a pair of hinges 235. Of the two plates, a first plate 231 is fixed to the bobbin 220, and a second plate 232 is hinged to the first plate 231 to rotate. In addition, a rotation handle 280 for rotating the bobbin 220 is provided on one side of the upper portion of the bobbin 220.

In an embodiment of the present invention, the length of the recovery optical cable 210 is set to 50 m, so that even when the length of the damaged cable is long, it can be sufficiently used.

FIG. 2 is a view for explaining a state in which the recovery optical cable 210 is separated into a branch cable 250 while passing through the distributor 240. For example, the recovery optical cable 210 may include 24 branch cables 250. More specifically, the recovery optical cable 210 is composed of 24 cores, and the recovery optical cable 210 is branched into 24 strands through the optical cable splitter 240. Brizzers 100 are respectively coupled to ends of the plurality of branch cables 250 branched by the distributor 240. At this time, the recovery optical cable 210 may be in a single mode.

6 is a cross-sectional view of the brizzer 100 related to the present invention. Hereinafter, referring to FIGS. 2 to 4 and 6, an optical cable emergency recovery bridging device 100 according to an embodiment of the present invention will be described. do.

The brizzer 100 has a head 110 into which the damaged optical fiber 10 is inserted, and a space for optical connection between the damaged optical fiber 10 and the recovery optical fiber 101, which is coupled to the head 110 The adapter 120 is fastened to one end of the adapter 120 and includes a connector 130 into which the recovery optical fiber 101 is inserted.

The head 110, the adapter 120, and the connector 130 have a through hole formed along the same first axis X as shown in FIG. 4, and an optical fiber is inserted along the through hole.

The head 110 includes a first body 111 having an optical fiber insertion hole 113 into which the damaged optical fiber 10 is inserted, and the damaged optical fiber 10 inserted into one side of the first body 111 A push hold button 115 for fixing a through hole formed to be in contact with the first body 111 and fastened to the adapter 120 and communicated with the optical fiber insertion hole 113 It comprises a second body 117 having a. In this case, the first body 111 and the second body 117 are not specifically shown, but may be coupled to each other by a fastening member such as a bolt, the coupling method is not particularly limited.

The push hold button 115 is pushed to insert the damaged optical fiber 10 into the brizzer 100 and then held pressed while inserting the damaged optical fiber. Thereafter, the damaged optical fiber 10 is fixed by the push hold button 115 by removing an external force from the push hold button 115. More specifically, the damaged optical fiber 10 is aligned with the optical fiber insertion hole 113, and the damaged optical fiber 10 is inserted into the inside of the head 110 while the push hold button 115 is pressed and aligned, and then aligned. When this is completed, the button 115 is released. At this time, before using the brizzer 100, the coating of the damaged optical fiber 10 must be removed and connected with a stripper. The optical fiber (optical cable) damaged by this method can be aligned with the recovery optical fiber 101 by a one touch method.

In an embodiment of the present invention, a matching gel is used to enable optical connection regardless of the shape of the damaged optical fiber 10 being cut or damaged. The matching gel is for correcting the refractive index when the recovery optical cable 210 (optical fiber) and the damaged optical cable (optical fiber, 10) are connected, and the matching gel has two optical fibers 10,101 having different cross-sectional shapes and optically connected. It is used to accurately connect the two optical fibers 10 and 101 to reduce the reflection loss and insertion loss of ), and is a material that is filled in the optical fiber receiving space S. For this purpose, a matching gel accommodation space in which the brizzer 100 is accommodated inside the second body 117 and a matching gel is provided between the stepped interior of the second body 117 It further includes a cap 116 to provide (S). The second body 117 is provided with a matching gel supply passage 117a capable of refilling the matching gel in the matching gel accommodation space S, so when the matching gel is insufficient, the matching gel is newly filled to continue. And can be used. Further, although not specifically shown, a cap (not shown) may be formed to prevent foreign substances such as dust from flowing into the outside of the matching gel supply passage 117a.

The cap 116 has a cylindrical shape with a through hole formed therein, and forms a matching gel accommodation space S by a step inside the second body 117. The damaged optical fiber 10 is introduced into the head 110 through the optical fiber insertion hole 113 of the first body 111, and the matching gel provided in the matching gel accommodation space S is damaged. It is buried at the tip of (10), and when the damaged optical fiber 10 is disposed to face the recovery optical fiber 101, the optical connection is made smoothly.

In addition, the brizzer 100 in an embodiment of the present invention includes a ferrule for guiding the movement of the optical cable 210 for recovery and the damaged optical cable, the ferrules 118a and 118b being the head A first ferrule (118a, ferrule) formed across 110 and the adapter 120 and in which the damaged optical fiber 10 is located, and formed across the connector 130 and the adapter 120, the It includes a second ferrule (118b) on which the recovery optical fiber 101 is located. The first ferrule 118a and the second ferrule 118b are optical fiber protectors made of ceramic material with a precisely polished connection surface. At this time, the optical fiber 101 of the recovery optical cable 210 passes through the second ferrule 118b and is positioned to the end, and the damaged optical fiber 10 penetrates the first ferrule 118a and pushes it to the end. When inserted, optical connection between two adjacent optical fibers 10 and 101 is made.

At this time, the first ferrule 118a may be polished in an APC (Angled Physical Contact) form, and the second ferrule 118b may be polished in an UPC (Ultra Physical Contact) form, and the first ferrule The 118a and the second ferrule 118b are wrapped by a sleeve 119 having gaps 119a and clearance formed at both ends along the first axis X. In this way, by forming the gap 119a, it is possible to actively respond to the size of the inserted ferrules 118a and 118b. More specifically, the sleeve 119 may be made of a ceramic material such as zirconia (ZrO ₂ ), and is the same as a part cut along the first axis direction in the shape of a cylinder, and both ends facing each other do not touch and are spaced apart. The first ferrule 118a and the second ferrule 118b can be inserted into the sleeve 119 without much difficulty. In this way, the sleeve 119 is cut along the longitudinal direction so that it can actively cope with the diameters of the first ferrule 118a and the second ferrule 118b.

6 is a cross-sectional view of the bridging device 100 related to the present invention. Referring to FIG. 6, ends of the first ferrule 118a and the second ferrule 118b are formed to contact each other, and the first ferrule ( A portion of the abutting portion of the 118a) and the second ferrule 118b is formed to be inclined toward the center, and a portion is wrapped by a sleeve 119.

On the other hand, insertion loss (IL) refers to the amount of light lost in the middle due to splicing or intrinsic dispersion characteristics of the optical fiber when light flows through the optical fiber. Subtracted value, that is,'insertion loss = incident light-received light', and return loss (RL) is a material having another refractive index that can cause light reflection at the junction of two optical fibers. It refers to the loss that the light reflected from the junction surface due to the difference flows back into the optical fiber.

The optical insertion loss may vary depending on conditions such as wavelength, type of cutting tool, skill level, etc., and is 0.5 dB or less in the brizzer 100 according to an embodiment of the present invention, and 0.3 dB or less when cut with a cleaver. Was.

Referring to FIG. 4 together with FIG. 6, the adapter 120 includes an adapter body 121 having a thread 121a formed therein so that the distal end of the second body 117 is inserted, and the adapter body 121 A protrusion 124 protruding toward the connector 130 from the end of the protrusion 124 is formed, and a thread is formed outside the protrusion 124 so that it can be coupled to the connector 130. In addition, the connector 130 includes a connector body 131 having a thread 131a formed therein, and a connector core 135 inserted into the connector body 131 and fitted into the protrusion 124. And the second ferrule 118b is formed through the inside of the connector body 131 and the connector core 135. The adjacent portions of the connector core 135 and the protruding portion 124 are formed with irregularities, so that they are engaged with each other.

Figure 5 is a perspective view as viewed from the rear of the optical cable emergency recovery kit related to the present invention, Figure 7a is a bridge holder 260 related to the present invention, Figure 7b is for recovery mounted on the brizzer 100 related to the present invention It is a perspective view of the optical cable 210. 5, 7A, and 7B, the recovery kit 200 according to an embodiment of the present invention further includes a bridge holder 260 for fixing the bridge 100, and a damaged optical cable While not recovering, the bridge holder 260 is mounted on a moving handle 270 formed on one side of the bobbin 220.

The bridge holder 260 is provided with a bridging groove 261 as many as the number of branched optical cables, and the bridging groove 261 has a shape corresponding to the outer shape of the brizzer 100. It is formed, and is formed in two rows of top and bottom, so when there are a number of damaged optical cables, the convenience of use is increased by mounting a plurality of brizzers 100 on the brizzer holder 260.

And, Figure 8 shows a recovery optical cable 210 related to the present invention, as shown in Figure 8, at both ends of the recovery optical cable in an embodiment of the present invention a pair of brizzers (100a, Since 100b) is connected, the brizzers 100a and 100b are respectively connected to both sides of the damaged optical cable to allow optical connection.

In addition, FIG. 9 shows a plurality of brizzers 100 to which a label related to the present invention is attached. As shown in FIG. 9, numbers and colors are combined to clearly distinguish the plurality of brizzers 100 Thus, a label 215 was attached to the branch cable 250 connected to each of the brizzers 100. As a result, it is easy to distinguish each of the alignment bridgers 100.

The above detailed description should not be construed as restrictive in all respects and should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

10: damaged optical fiber, 100: brizzer, 101: optical fiber for recovery, 110: head, 111: first body, 113: optical fiber insertion hole, 115: push button, 116: cap, 117: second body, 118a: first 1 ferrule, 118b: second ferrule, 119: sleeve, 120: adapter, 121: adapter body, 124: protrusion, 130: connector, 131: connector body, 135: connector core, 200: optical cable emergency repair kit, 210: recovery For optical cable, 215: label, 220: bobbin, 230: protective cover, 240: divider, 250: branch cable, 260: bridging holder, 270: moving handle, 280: rotating handle, S: matching gel storage space

Claims (5)

A head into which the damaged optical fiber is inserted;
An adapter coupled to the head and having a space for optically connecting the damaged optical fiber and the recovery optical fiber; And
It is fastened to one end of the adapter and includes a connector through which the recovery optical fiber is introduced,
The head,
A first body having an optical fiber insertion hole into which the damaged optical fiber is inserted;
A push button inserted into one side of the first body and fixing the damaged optical fiber; And
A second body formed to be in contact with the first body and fastened with the adapter, and having a through hole formed to communicate with the optical fiber insertion hole,
A first ferrule provided between the head and the adapter and on which the damaged optical fiber is located;
A second ferrule provided between the connector and the adapter to place the recovery optical fiber; And
Including a sleeve (sleeve) surrounding the first ferrule and the second ferrule,
The sleeve is an optical cable emergency recovery bridger, characterized in that a clearance is formed along a length direction so that opposite ends are spaced apart from each other. The method of claim 1,
The head,
It characterized in that it further comprises a cylinder-shaped cap that is accommodated in the inside of the second body and provides a matching gel accommodation space in which a matching gel is provided between the stepped interior of the second body. Fiber optic emergency repair bridging. The method of claim 2,
An optical cable emergency recovery bridging device, wherein a matching gel supply passage through which the matching gel can be refilled is formed in the second body in the matching gel accommodation space. An optical cable for recovery optically connected to the damaged optical cable;
A bobbin on which the recovery optical cable is wound;
A protective cover provided on one side of the bobbin and at least partially opened and closed to allow the recovery optical cable to be drawn out;
The recovery optical cable is a splitter for separating into a plurality of branch cables; And
It is connected to the end of the plurality of branch cables and includes an optical cable emergency repair bridging device capable of repairing a plurality of damaged optical fibers,
The optical cable emergency recovery brizzer,
A first body having an optical fiber insertion hole into which the damaged optical fiber is inserted, a push button inserted into one side of the first body and fixing the damaged optical fiber, and formed to contact the first body and fastened with the adapter A head including a second body having a through hole formed to communicate with the optical fiber insertion hole;
An adapter coupled to the head and having a space for optically connecting the damaged optical fiber and the recovery optical fiber;
A connector fastened to one end of the adapter and into which the recovery optical fiber is introduced;
A first ferrule provided between the head and the adapter and on which the damaged optical fiber is located;
A second ferrule provided between the connector and the adapter to place the recovery optical fiber; And
Including a sleeve (sleeve) surrounding the first ferrule and the second ferrule,
The sleeve is an optical cable emergency repair kit, characterized in that the gap (clearance) is formed along the length direction of the opposite ends are spaced apart from each other. The method of claim 4,
The plurality of branch cables further include a brizzer cradle to which each is fixed,
Optical cable emergency repair kit, characterized in that the plurality of branch cables are identified by a label consisting of a combination of color and number.

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