KR20200028215A - 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 to 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 optical connection between the damaged optical fiber and the recovery optical fiber; and a connector fastened to one end part of the adapter and allowing the recovery optical fiber to be flowed therethrough. The head has 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, fastened with the adapter, and having a through hole formed to communicate with the optical fiber insertion hole.

Description

Emergency repair kit for optical cable and emergency repair kit for optical cable using the same {EMERGENCY BRIDGER FOR OPTICAL CABLE AND EMERGENCY KIT USING THE SAME}

The present invention relates to an optical cable emergency recovery bridger and an optical cable emergency recovery kit using the same, and an optical cable emergency recovery bridger and an optical cable emergency recovery kit using the optical cable emergency recovery bridger that can be quickly and urgently repaired without fusion splicing when the optical cable is damaged. .

Since an optical cable is a communication medium using an optical fiber and is a communication method using light, data transmission speed is several tens of times faster than a communication method using an electric signal. This optical cable is made to withstand various external environments by putting it in a sheath to protect the optical fiber, and includes an optical fiber, a tube surrounding the optical fiber, an inner jacket made of plastic such as Kevlar, an inner jacket and an outer jacket made of plastic.

On the other hand, if the optical cable is damaged or damaged, communication is lost. To this end, in order to restore the disconnection, the site is connected with various types of connection means to reconnect the cut part, for example, by fusion splicing, etc. Is done. Fusion splice refers to a method of splicing optical fibers by aligning the optical fiber axis with an imaging device and a small motor and then welding the optical fiber cross-section. Such a fusion splicing may be a solution to a damaged optical cable, but since it takes a long time to fusion splice, the optical cable must be urgently restored before splicing.

In general, the emergency recovery optical cable for emergency recovery of the optical cable is designed to be conveniently used by connecting a general connector to both ends of the optical cable and then winding it on the bobbin so that it is convenient to install where it is urgently connected before normal restoration of the damaged optical cable.

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

In addition, when connecting both ends of the cut optical fiber, in the case of an optical cable composed of a plurality of optical fibers, there is a problem in that it is not clearly distinguishing what kind of recovery optical fiber is connected to the damaged optical fiber.

The present invention aims to solve the above and other problems. Another object is to provide an optical cable emergency recovery bridger and an optical cable emergency recovery kit using the optical cable emergency recovery bridger that can be quickly recovered in the event of damage to the optical cable.

According to an aspect of the present invention to achieve the above or another object, the damaged optical fiber is inserted head; An adapter coupled to the head and having a space for optical connection between the damaged optical fiber and the recovery optical fiber; And a connector that is fastened to one end of the adapter unit and the recovery optical fiber is introduced into, and the head comprises: 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 contact the first body and fastened with 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 inside the second body, and provides a matching gel accommodation space provided with a matching gel 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 through which the matching gel can be refilled 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 the damaged optical fiber is located; A second ferrule provided between the connector and the adapter to locate the recovery optical fiber; And a sleeve surrounding the first ferrule and the second ferrule, and the sleeve may have a clearance along a longitudinal direction.

According to an aspect of the present invention, a recovery optical cable that is 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 to open and close at least a portion so that the recovery optical cable is drawn out; The recovery optical cable is divided into a plurality of branch cables; And an optical cable emergency repair bridger connected to the ends of the plurality of branch cables to recover a plurality of damaged optical fibers, wherein the optical cable emergency repair bridger has an optical fiber insertion hole into which the damaged optical fiber is inserted. A first body to be inserted, a push button inserted into one side of the first body and fixing the damaged optical fiber, a penetration formed through contact with the first body, fastened with 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 optical connection between the damaged optical fiber and the recovery optical fiber; And it is fastened to one end of the adapter portion may be provided with an optical cable emergency repair kit, characterized in that it comprises a connector through which the optical fiber for recovery is introduced.

According to one aspect of the present invention, the plurality of branch cables further includes a bridge holder for fixing each, and the plurality of branch cables may be distinguished by a label consisting of a combination of color and number.

When explaining the effect of the optical cable emergency recovery bridger according to the present invention and the optical cable emergency recovery kit using the same.

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 repaired without fusion splicing.

According to at least one of the embodiments of the present invention, optical connection can be stably performed by using a matching gel even when the fiber is arbitrarily cut, and by attaching a label with a combination of color and number to each alignment bridger There is an advantage in that it is easy to distinguish multiple bridgers.

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

According to at least one of the embodiments of the present invention, since it is possible to replace the matching gel or the bridger, it can be used more than 100 times and can be used semi-permanently. It has the advantage that it can be selected according to the user's needs, even for 50m extension recovery.

Further scope of applicability of the present invention will become apparent from the following detailed description. However, various changes and modifications within the spirit and scope of the present invention may be clearly understood by those skilled in the art, and thus, it should be understood that specific embodiments such as detailed description and preferred embodiments of the present invention are given as examples only.

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

Hereinafter, exemplary embodiments disclosed herein will be described in detail with reference to the accompanying drawings, but the same reference numerals will be assigned to the same or similar elements regardless of the reference numerals, and overlapping descriptions thereof will be omitted. The suffix "part" for the components used in the following description is given or mixed only considering the ease of writing the specification, and does not have a meaning or a role distinguished from each other in itself. In addition, in describing the embodiments disclosed in this specification, detailed descriptions of related well-known technologies are omitted when it is determined that the gist of the embodiments disclosed in this specification may be obscured. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed herein, and the technical spirit disclosed in the specification is not limited by the accompanying drawings, and all changes included in the spirit and technical 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 components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from other components.

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

In this application, the terms "comprises" or "have" are intended to indicate the presence of features, numbers, steps, actions, components, parts or combinations thereof described herein, one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

According to an embodiment of the present invention, there is provided a bridger 100 and an optical cable emergency repair kit 200 using the same for emergency repair in the event of damage to the optical cable. A perspective view of the kit 200, FIG. 2 is a partially enlarged view of a 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 Figure 1, the optical cable emergency repair kit 200 according to an embodiment of the present invention (hereinafter referred to as 'recovery kit 200') is to recover the damaged optical cable by optical connection with the damaged optical cable For the recovery optical cable 210, the recovery optical cable 210 is wound bobbin (220, bobbin), and is provided on one side of the bobbin 220, at least a portion is opened and closed the recovery optical cable 210 is A protective cover 230 to be pulled out, and an optical cable emergency recovery bridger 100 (bridger) (hereinafter referred to as a 'bridger', which is connected to an end of the recovery optical cable 210 to recover a plurality of damaged optical fibers) 100) will be referred to as').

The bridgers 100 are respectively connected to both ends of the recovery optical cable 210, and more specifically, the recovery optical cable 210 is separated into a plurality of branch cables 250 by a distributor 240. , The bridger 100 is formed at the end of each branch cable 250. A moving handle 270 is formed on one side of the bobbin 220 to transport the recovery kit 200, and a pedestal 290 is provided at the bottom.

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

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

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. As an example, the recovery optical cable 210 may include 24 branch cables 250. More specifically, the recovery optical cable 210 is composed of 24 strands, and the recovery optical cable 210 is branched into 24 strands through the optical cable distributor 240. Bridgers 100 are coupled to ends of the plurality of branch cables 250 branched by the distributor 240, respectively. In this case, the recovery optical cable 210 may be a single mode.

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

The bridger 100 is provided with a head 110 into which the damaged optical fiber 10 is inserted, a space in which the damaged optical fiber 10 and the recovery optical fiber 101 are optically connected to the head 110 and coupled to the head 110. It comprises an adapter 120 and a connector 130 that is fastened to one end of the adapter 120 and into which the optical fiber 101 for recovery is inserted.

The head 110, the adapter 120 and the connector 130, as shown in Figure 4, is formed through-hole along the same first axis (X), the optical fiber is inserted along the through-hole.

The head 110 is 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 Push hold button (115) for fixing the, through hole formed to be in contact with the first body 111 and fastened with the adapter 120, the through hole formed to communicate with the optical fiber insertion hole 113 It comprises a second body 117 having a. In this case, although the first body 111 and the second body 117 are not specifically illustrated, they may be coupled to each other by a fastening member such as a bolt, and the coupling method is not particularly limited.

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

In one embodiment of the present invention, a matching gel is used to enable optical connection regardless of the type of the damaged optical fiber 10 being cut or damaged. The matching gel is for correcting the refractive index when connecting the recovery optical cable 210 (optical fiber) and a damaged optical cable (optical fiber, 10), and the matching gel has two optical fibers 10,101 having different cross-sectional shapes ) Is used to accurately connect the two optical fibers (10,101) to reduce the reflection loss and insertion loss, and is a material filled in the optical fiber receiving space (S). To this end, the bridger 100 is accommodated in the interior of the second body 117, a matching gel accommodation space provided with a matching gel between the stepped interior of the second body 117 The cap 116 which provides (S) is further included. 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 that when the matching gel is insufficient, the matching gel is newly filled to continue. Can be used. In addition, although not specifically shown, a cap (not shown) for preventing foreign matter such as dust from entering the outside of the matching gel supply passage 117a may be formed.

The cap 116 is a cylinder shape having 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 optical fiber It is buried at the tip of (10), and when the damaged optical fiber (10) is arranged to face the optical fiber (101) for repair, the optical connection is made smoothly.

In addition, the bridger 100 in one embodiment of the present invention includes a ferrule for guiding the movement of the damaged optical cable 210 and the damaged optical cable, wherein the ferrules 118a and 118b are the heads. The first ferrule (118a, ferrule) is formed across the 110 and the adapter 120 and the damaged optical fiber 10 is located, and is formed across the connector 130 and the adapter 120. And 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 protective materials made of a ceramic material having a polished connection surface. At this time, the optical fiber 101 of the recovery optical cable 210 passes through the second ferrule 118b and is located at the end, pushing the damaged optical fiber 10 through the first ferrule 118a to the end. When inserted, the optical connection of two adjacent optical fibers 10 and 101 is made.

At this time, the first ferrule 118a may be polished in the form of an APC (Angled Physical Contact), and the second ferrule 118b may be polished in the form of an UPC (Ultra Physical Contact), and the first ferrule (118a) and the second ferrule (118b) are wrapped by a sleeve (119) in which clearances (119a, clearance) are formed at both ends along the first axis (X). In this way, the gap 119a is formed, and thus it is possible to actively respond to the size of the ferrules 118a and 118b inserted. 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 the opposite ends are spaced apart from each other. By forming as possible, the first ferrule 118a and the second ferrule 118b can be inserted into the sleeve 119 without excessive force. In this way, the sleeve 119 is cut along the longitudinal direction so as to actively cope with the diameters of the first ferrule 118a and the second ferrule 118b.

6 is a cross-sectional view of the bridger 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 the sleeve 119 (sleeve).

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

The optical insertion loss may vary depending on conditions such as wavelength, type of cutting tool, and skill, and is less than 0.5 dB in the bridger 100 according to an embodiment of the present invention, and less than 0.3 dB in the case of cutting with a cleaver. It was.

Referring to FIG. 4 together with FIG. 6, the adapter 120 includes an adapter body 121 having a thread 121a formed therein so as to insert a tip portion of the second body 117, and the adapter body 121 A protrusion 124 protruding toward the connector 130 from the end of the is formed, and a thread is formed outside the protrusion 124 so as to be coupled with 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 with the protrusion 124. Including, the second ferrule 118b is formed through the inside of the connector body 131 and the connector core 135. The connector core 135 and the adjacent portions of the protrusions 124 are formed with irregularities so as to mesh with each other.

5 is a perspective view as viewed from the rear of the optical cable emergency repair kit related to the present invention, FIG. 7a is a bridger holder 260 related to the present invention, and FIG. 7b is for recovery mounted on the bridger 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 bridger holder 260 for fixing the bridger 100, and damages the optical cable. During recovery, the bridger holder 260 is mounted on the moving handle 270 formed on one side of the bobbin 220.

The bridger holder 260 has a bridger receiving groove 261 corresponding to the number of branched optical cables, and the bridger receiving groove 261 has a shape corresponding to the external shape of the bridger 100. It is formed, and is formed by two rows of upper and lower, and when there are multiple damaged optical cables, the convenience of use is increased by mounting a plurality of bridgers 100 on the bridger holder 260.

And, Figure 8 shows a recovery optical cable 210 related to the present invention, as shown in Figure 8, a pair of bridgers (100a, at both ends of the recovery optical cable in one embodiment of the present invention, 100b) are connected, so that the bridging machines 100a and 100b are connected to both sides of the damaged optical cable, so that the optical connection is made.

In addition, FIG. 9 illustrates a plurality of bridgers 100 to which the label related to the present invention is attached, as shown in FIG. 9, a combination of numbers and colors to clearly distinguish the plurality of bridgers 100 Thus, a label 215 was attached to the branch cable 250 connected to each bridger 100. This made it easy to distinguish each of the align bridgers 100 (align bridger).

The above detailed description should not be construed as limiting in all respects, but should be considered illustrative. The scope of the present invention should be determined by rational 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 fiber, 100: bridger, 101: repair fiber, 110: head, 111: first body, 113: optical fiber insertion hole, 115: push button, 116: cap, 117: second body, 118a: product 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: bridge holder, 270: moving handle, 280: rotating handle, S: matching gel storage space

Claims (6)

A head into which a damaged optical fiber is inserted;
An adapter coupled to the head and having a space for optical connection between the damaged optical fiber and the recovery optical fiber; And
It is fastened to one end of the adapter portion and includes a connector through which the recovery optical fiber flows,
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
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. According to claim 1,
The head,
It is accommodated in the interior of the second body, characterized in that it further comprises a cylinder-shaped cap for providing a matching gel receiving space provided with a matching gel (matching gel) between the stepped interior of the second body, characterized in that it further comprises Fiber optic emergency recovery bridger. According to claim 2,
An optical cable emergency recovery bridger, wherein a matching gel supply passage through which the matching gel is refilled is formed in the matching gel accommodation space in the second body. According to claim 2,
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 locate the recovery optical fiber; And
It includes a sleeve surrounding the first ferrule and the second ferrule (sleeve),
The sleeve is an optical cable emergency recovery bridger, characterized in that a clearance (clearance) is formed along the longitudinal direction. A recovery optical cable that is 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 to open and close at least a portion so that the recovery optical cable is drawn out;
The recovery optical cable is divided into a plurality of branch cables; And
And an optical cable emergency recovery bridger connected to the ends of the plurality of branch cables to recover a plurality of damaged optical fibers,
The optical cable emergency recovery bridger,
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, 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 optical connection between the damaged optical fiber and the recovery optical fiber; And
Emergency repair kit of the optical cable, characterized in that it comprises a connector that is fastened to one end of the adapter portion and the recovery optical fiber is introduced. The method of claim 5,
The plurality of branch cables further include a bridge holder to which each is fixed,
The plurality of branch cables are separated by a label consisting of a combination of color and number Optical fiber emergency repair kit.

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