KR20060014842A - Emergency equipment for optical cable - Google Patents

Abstract

Disclosed is an equipment for emergency repair of optical cables that can temporarily repair optical cables that have been broken or damaged due to various accidents. Such equipment includes a recovery optical cable 330 coated with a plurality of optical fibers, a winding bobbin 100 having a drum 110 and a fixing plate 120 to wind the recovery optical cable, and the recovery optical cable 330. At least two connection terminal boxes 310 and 320 detachably fixed to the fixing plate so that both ends of the optical cable are individually introduced to allow emergency repair of the optical fiber for the track, and a support frame for rotatably supporting the winding bobbin ( 200). The recovery optical cable is connected to an optical connector connected to an optical fiber in the connection terminal box and accommodated in the optical adapter, so that the optical connector connected to the optical fiber of the optical fiber cable for the line is received in the optical adapter and optically connected. Accordingly, it is possible to minimize the loss of the connection between the optically connected optical fibers while emergency recovery of broken or broken optical cables more quickly and accurately.

First Aid, Optical Connector, Adapter, Optical Cable

Description

Emergency equipment for optical cable {Emergency equipment for optical cable}

1 is a photograph and appearance perspective view of a conventional mechanical connector,

2 is an external perspective view of equipment for emergency repair of an optical cable according to an embodiment of the present invention;

Figure 3 is a cross-sectional view showing a state in which the winding bobbin is coupled to the support frame in the optical cable emergency repair equipment according to an embodiment of the present invention,

Figure 4a is a cross-sectional view showing a state before the fastening of the binding protrusion and the binding sphere for binding the handle to the backrest, Figure 4b is a cross-sectional view showing a state after the fastening of the binding projection and the binding sphere, Figure 4c is a moving handle in Figure 2 Is an exploded perspective view with the bend separated from the backrest with the bending direction facing forward,

Figure 5a is an exploded perspective view of the tightening bolt is removed from the left side to see the position where the braking device is applied to the optical cable emergency recovery equipment according to the invention, Figure 5b is a recovery optical cable winding bobbin during operation at the work site Is a cross-sectional view showing a coupled state of the braking device when it is unwound or wound at, and Figure 5c is a cross-sectional view showing a coupled state of the braking device before and after the work,

Figure 6 shows a rectangular optical cable for recovery applied to the optical cable emergency recovery equipment according to the present invention,

7 is a perspective view of a state in which a cover is opened to show a state in which a recovery optical cable is disposed in a connection terminal box as an example applied to the equipment according to the present invention;

8A is an exploded perspective view illustrating an example of a fixture for supporting and fixing a recovery optical cable that is inserted from a main body side of the connection terminal box, and FIG. 8B is an exploded perspective view of the fanout kit applied to the present invention. 8c is a cross-sectional view of the end of the optical cable is fixed by the fanout kit and the optical fiber is covered with a tube and drawn out, Figure 8d is an external perspective view showing a state in which the optical fiber drawn through the fanout kit is connected to the optical connector,

FIG. 9A is an exploded perspective view illustrating an on-site optical connector which can be used in combination with an optical fiber in a line optical cable at a work site, and FIG. 9B is a longitudinal cross-sectional view illustrating the inside of a case in the optical connector of FIG. 9A, and FIG. 9C. Is a cross-sectional view showing before and after the operation of fixing the optical fiber to the plug in the optical connector of Figure 9a, and

FIG. 10 schematically illustrates the state in which the optical connection is made using an optical connector at a recovery work site by an operator.

-Explanation of terms for main parts of attached drawings-

100: winding bobbin 110: drum

120: fixing plate 122: optical cable lead-out groove

126: roller 127: tightening bolt

128: elastic spring 130: wheels

200: support frame 210: support leg

230: movement handle 310, 320: connection terminal box

315b: optical connector 315c: adapter

330: optical cable 340: fan-out kit

500: shoulder strap 520: backrest

The present invention relates to the equipment for emergency repair of optical cables that can temporarily repair the optical cable disconnected or damaged due to various accidents.

With the development of communication technology, one of the core technologies of optical communication that enables faster communication speed is optical cable. Such an optical cable includes an optical fiber which is a path of an optical signal containing data, and the data transmission method using the optical fiber is widely used because of its superior data transmission speed and quality than the conventional method of transmitting data using an electric signal.

However, since the optical cable is somewhat less resistant to external forces than the conventional cable to which the electrical signal is transmitted, various contents to compensate for this are further included in the optical cable to increase its load and volume, thereby making the structure complicated.

On the other hand, the optical cable has to be repaired, such as replacing the optical cable of the line in which the accident occurred once disconnected, but because the operation is complicated and time-consuming, the optical cable for emergency recovery in case of an accident such as disconnection of the optical cable Equipment is being used to temporarily repair broken or broken optical cables. In addition, since the emergency recovery equipment is a temporary recovery equipment, it should basically be able to recover the optical cable disconnected quickly and accurately, and should be convenient to move and carry to the work area.

Looking at such a conventional optical cable emergency recovery equipment, a circular optical cable of a certain length to be used for repairing a broken optical cable, a drum with fixing plates attached at both ends to wind the optical cable, and a connection terminal attached to the fixing plate for connecting the optical cable And a support frame rotatably supporting the drum by a rotating shaft so that the optical cable wound while the drum rotates can be released.

 The connection terminal box optically connects optical fibers in the optical cable to each other using a mechanical connector therein. 1A and 1B are photographs and an external perspective view showing such a conventional mechanical connector.

Referring to FIG. 1, the mechanical connector includes a capillary glass filled with a matching gel therein, and a lock nut provided to fix and insert an optical fiber at both ends of the capillary glass. The optical connection by such a mechanical connector is to fit the optical fibers to be optically connected to both ends of the capillary glass, and tightened and fastened with a lock nut to optically connect.

However, since the conventional optical cable emergency recovery equipment uses a circular optical cable, when the optical cable is wound on the drum, unnecessary space is formed between the optical cables, increasing the load, the load and the volume, and accordingly, Its size and weight were large, making it difficult to carry and move. In addition, according to the optical cable applied to the conventional emergency repair equipment, since the optical fiber in the optical cable to be connected at both ends cannot be identified, the worker had to measure and check the corresponding optical fiber in the optical cable separately at the work site, and then work with each other. This was cumbersome and the time for emergency recovery work was also inconvenient. And, it is common that the optical cable is laid so as to be protected from external shocks such as being buried in the ground. The emergency recovery optical cable is an emergency recovery type, which is released from the drum and exposed to the ground to protect it from the impact that may be applied from the outside. It was inconvenient because a separate protection measures should be taken to make it possible.

In addition, according to the conventional mechanical connector as shown in Fig. 1 to optically connect the optical cable by using the conventional optical cable emergency recovery equipment, by inserting the small optical fibers by hand one by one for the optical connection in the field, the lock nut at both ends Tightening and fixing the cable leads to difficult and cumbersome work. Also, the interconnection between the core and the clad layers of the optical fiber is not precise, so that no loss can occur and the quality of communication service by the optical cable can be degraded. There was only a limit.

Accordingly, the present invention has been made to solve the above problems, and provides an optical cable emergency repair equipment having a structure that can minimize the loss of connection between optically connected optical fibers, while quickly and accurately emergency repair of disconnected or broken optical cables. Its purpose is to.

In one embodiment according to the present invention for achieving the above object, a recovery optical cable coated with a plurality of optical fibers, the winding bobbin provided with a drum and a fixing plate for winding the recovery optical cable, and the recovery Both ends of the optical cable are individually inserted so that the emergency recovery of the optical cable including at least two connection terminal box detachably fixed to the fixing plate for emergency recovery of the optical fiber cable, and a support frame rotatably supported by the winding bobbin. In the equipment for use: The optical fiber for recovery is connected to the optical adapter connected to the optical fiber inside the connection terminal box is accommodated in the optical adapter, the optical connector connected to the optical fiber of the optical fiber cable for the line can be received and optically connected to the optical adapter Provide emergency repair equipment for optical cables.

The support frame includes a through-hole having a female thread, a roller accommodated in the through-hole and contacting the fixed plate, an elastic spring inserted to apply an elastic force to the roller, and a roller accommodated in the through-hole by pressing the elastic spring. Is preferably provided with a tightening bolt that can be screwed and screwed with the female threaded portion of the through hole to contact the fixing plate to apply a braking force. In addition, the support bobbin is mounted to the winding bobbin rotatably supported, the wheel mounted on the support leg, the backrest is attached to the support leg and the shoulder strap is mounted so that the operator can carry on the back, the operator by hand Disclosed is a support frame comprising a movable handle detachably connected to a backrest for holding, pushing or dragging. Here, a tool box may be attached to the support frame, and the front frame may include a moving handle storage portion in which the moving handle may be stored.

The winding bobbin is composed of at least two bobbins in which the recovery optical cable can be wound, and the recovery optical cable is preferably an optical cable having a rectangular cross-sectional shape.

On the other hand, it is preferable that the optical fiber of the recovery optical cable in the connection terminal box is covered with tubes of different colors. In the two connection terminal boxes, the same optical fiber of the repairing optical cable is preferably covered with tubes of the same color. The apparatus may further include a fan-out kit having an end of the recovery optical cable and a fixing frame for fixing the distribution panel into which the tube is inserted so that the optical fiber of the recovery optical cable can be inserted in the connection terminal box. have.

In addition, the field optical connector connected to the optical fiber of the optical fiber for the recovery optical cable and the field optical connector connected to the optical fiber of the optical fiber for the line are each received by the optical adapter in the connection terminal box and the optical connection is made by the optical connection, the field optical connector Cylindrical-type ferrol F in which the optical fiber was exposed to the edge part; A case in which an optical fiber matching gel (M.G) connected to the optical fiber of the ferrol is formed and a passage is formed to connect the optical fiber of the optical fiber cable for the line with the matching gel; An optical fiber support having an optical fiber passage formed so that the optical fiber of the optical fiber cable for the line can pass through and a wedge groove formed so that the optical fiber passage can be expanded when the wedge is fitted on the side, and the optical fiber support is elastically wrapped The rat is made of an outer shell formed of an elastic body and a wedge insertion hole to protect and protect the elastic body and to be inserted into the wedge groove, the plug being connected to the case to fix the optical fiber of the optical fiber cable for the line from the outside; Boots for guiding and protecting the optical fiber of the optical fiber cable for the line; And a housing for wrapping and fixing the case and being accommodated in an adapter.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is an external perspective view of the emergency repair equipment of the optical cable as an embodiment according to the present invention, Figure 3 shows a state in which the winding bobbin is coupled to the support frame in the optical cable emergency repair equipment according to an embodiment of the present invention. One cross section.

2 and 3, as an embodiment according to the present invention, the emergency repair equipment 10 has a winding bobbin 100 of a structure in which a recovery optical cable of a considerable length that can be used in an emergency repair section can be wound. And connection terminal boxes 310 and 320 fixed to the winding bobbin 100 for connection of the optical cable, a support frame 200 for rotatably supporting the winding bobbin 100, and a tool for repairing the damaged optical cable. It is provided with a tool box 600 attached to the support frame 200 to store the. Here, the tool box 600 is convenient because it can reduce the inconvenience caused by individually holding a tool used for the optical cable recovery.

The winding bobbin 100 includes a first bobbin as a main bobbin to which most optical cables can be wound, and a second bobbin 121 as an auxiliary bobbin provided on the side of the first bobbin.

The first bobbin and the second bobbin 121, the diameter of the drum is extended to both ends of the drum so that the optical cable is wound around the drum 110 and the recovery optical cable 330 wound on the drum 110 is not separated It consists of a fixed plate 120 attached to have a shape. Here, the illustrated example shows an example in which the winding bobbin 100 is divided into two regions, but may be formed of only one winding bobbin 100 without the auxiliary bobbin 121. However, since at least one of both ends of the optical cable wound on the winding bobbin is buried as the optical cable is wound on the winding bobbin and cannot be released, when there is no auxiliary bobbin 121, work such as the case where it is installed in the air or underground at the work site The entire equipment must be moved for recovery in the environment. However, in the case of providing the auxiliary bobbin 121 according to the present invention, since the optical cable on one end side of the optical cable to be wound and buried in the main bobbin can be wound around a certain length, it may be placed in the same position as the air or underground. Even if you need to work, simply unwind the optical cable can be moved and work is very beneficial.

The fixing plate 120 is provided with an optical cable lead-out groove 122 having a shape cut in a predetermined width so that the optical cable wound on the drum can be easily pulled out laterally. In addition, a rotating shaft 430 is attached to the outer fixing plate 120 so that the winding bobbin 100 may be rotatably supported by the support leg 210. In addition, the rotating shaft 430 is attached to the rotary handle 400 so that the operator can easily rotate in a state mounted on the support leg (210). Accordingly, the operator can rotate the take-up bobbin 100 by holding and rotating the rotary knob 430 to facilitate an operation such as winding or unwinding the optical cable 330. Here, the rotary knob 430 may be of various shapes and structures, but it is advantageous in the case of the moveable or storage such that the foldable structure. The handle includes a first arm 410 attached to the rotating shaft and a second arm 420 hingedly connected to the first arm. Here, the first arm 410, it is more preferable that the charging groove 411 is formed in a portion overlapping with the second arm 320.

The support frame 200, the winding bobbin 100 is seated and rotated so that the optical cable 330 can be unwound or wound so that the support leg 210 made of a straight bent in the reverse "V" shape, and the worker Wheel 130 is mounted on the support legs to facilitate the movement of the equipment on a flat surface, and the shoulder strap 500 is mounted so that the operator can be carried back on the uneven ground, etc. It consists of a backrest 520 connected to 210 and a moving handle 230 connected to the backrest 520 so that an operator can hold and push by hand. Here, the tool box 600 is a backrest so that the worker can easily access when working with the equipment 10 is located on the ground, etc. without touching the body, such as the head of the worker when the worker carrying the shoulder strap 500, etc. (520) It is preferable to attach the upper end and the winding bobbin 100 to face forward.

The support leg 210 has a bearing (not shown) is mounted on the upper side, the rotating shaft 430 and the support leg 210 attached to the fixing plate 120 of the take-up bobbin 100 via the bearing. Are combined with each other. Accordingly, the rotating shaft 430 may be supported while being supported by the bearing so that the optical bobbin 100 may be unwound or wound as the winding bobbin 100 rotates.

The moving handle 230 is bent to be inclined backward from the backrest 520 so that the operator can easily grab or push or pull from the rear, if you want to move the equipment 10 according to the invention on a flat surface By pressing the handle so that the center of gravity is placed on the wheel 130 and pushing or dragging the wheel, the equipment 10 can be easily moved. However, in a work environment such as an uneven surface, when the worker wants to move against the back using the shoulder strap 500 of the backrest 520, the moving handle 230 is bent backwards, which is rather inconvenient. In order to alleviate this inconvenience, the handle 230 is preferably detachably connected to the backrest 520 is detachable, there can be a variety of such detachable manners with reference to Figures 4a to 4c As an example, let's look.

Figure 4a is a cross-sectional view showing a state before the fastening of the binding protrusion and the binding sphere for binding the handle to the backrest, Figure 4b is a cross-sectional view showing a state after the fastening of the binding projection and the binding sphere, Figure 4c is a moving handle in Figure 2 An exploded perspective view showing a state in which the bending direction is forward while being separated from the backrest.

4A to 4C, at least a lower end of the moving handle 230 is formed of a protruding bar 231, and the protruding bar 231 of the moving handle 230 is fitted to the backrest 520. Insertion groove 211 is provided. Then, after the protrusion bar 231 is fitted into the insertion groove 211, the operator grabs the moving handle 230 and the moving handle 230 and the moving handle 230 so as not to fall out of the backrest 520 when dragging. The backrest 520 is provided with a binding protrusion 232 and a binding hole 240 that are coupled to each other and fixed. The binding protrusion 232 and the binding hole 240 may be made in a variety of forms, but looking at the example shown in Figure 3a and 3b in more detail, the binding protrusion on the protrusion bar 231 of the lower end of the moving handle 230 232 is attached, and the binding port 240 is attached to the backrest 520. Here, the fastener 240 is a fixing table 241 attached to the upper end of the backrest, a rotating piece 242 connected to the fixing table 241 so as to be rotatable via the first hinge shaft 242a, and the rotating piece 242. ) And a pull ring 243 rotatably connected to each other via the second hinge shaft 242b. Accordingly, in the state where the pull ring 243 is caught by the binding protrusion 232 of the moving handle, the pivoting piece 242 may be rotated downward to be fixed to each other. In addition, when the moving handle 230 is to be separated from the backrest 520, the pivoting piece 242 may be rotated upward in the opposite direction to release the pull ring 243 from the binding protrusion 232.

According to such a configuration, in the case of holding and sliding or dragging the movement knob 230 using a wheel as in a flat ground, the bending direction of the movement knob 230 is inclined backward as shown in FIG. 2. On the uneven surface and the work environment, as shown in FIG. 4C, the moving handle 230 is detached from the backrest 520, and the bending direction of the moving handle 230 is inclined forward so as to protrude from the bottom of the handle 230. In the state in which the bar 231 is inserted into the insertion groove 211 of the backrest 520, the operator can carry the shoulder strap 500 of the backrest 520 more comfortably and move it. Here, the moving handle 230 is provided with a separate protrusion bar receiving groove 250 as a moving handle storage portion in the front lower portion of the backrest 520, by separating the moving handle 230, the protrusion bar receiving groove 250 By keeping it in place) the position of the moving handle 230, which would have carried the emergency repair equipment 10 according to the present invention is lowered to eliminate the inconvenience that may occur by touching the operator's head by the moving handle 230 It is advantageous.

On the other hand, the winding bobbin 100 should not be freely released from the support frame 200 after the recovery optical cable 330 is wound or after being used for the optical connection at the recovery site. However, since the optical cable emergency repair equipment 10 according to the present invention is for emergency repair of a damaged or disconnected optical transmission line, it is generally disposed to be exposed on the ground, and accordingly, to a passerby or an operator in nearby work. It can be caught or pulled by. In this case, the optical cable 300 may be damaged due to tension, so that even after the optical transmission line is recovered, the winding bobbin 100 may be pulled out by a predetermined or more external interference so that the recovery optical cable 330 may be released. It is desirable to have a braking device having a structure that can cushion an external impact. This will be described with reference to FIGS. 5A to 5C.

Figure 5a is an exploded perspective view of the tightening bolt is removed from the left side to see the position where the braking device is applied to the optical cable emergency recovery equipment according to the invention, Figure 5b is a recovery optical cable winding bobbin during operation at the work site Fig. 5 is a cross-sectional view showing the engaged state of the braking device when it is unwound or wound up, and Fig. 5C is a cross-sectional view showing the engaged state of the braking device before and after the work.

5A to 5C, the braking device according to the present invention includes a through hole 223a having a female thread 111 formed in the support leg 210, and a roller 126 such as a ball accommodated in the through hole 223a. ), An elastic spring 128 inserted to apply an elastic force to the roller 126, and a roller 126 accommodated in the through hole 223a by pressing the elastic spring 128 in contact with the support leg 210. It is provided with a tightening bolt 127 that can be screwed and screwed with the female threaded portion 111 of the through hole 223a so that the braking force can be applied in the state.

According to this configuration, when the worker wants to repair the optical fiber cable for the track at the work site, when the work such as loosening or winding the recovery optical cable 330 from the winding bobbin 100 (fastening bolt ( Loosen 127 to allow the roller 126 accommodated in the through hole 223a to relax on the support leg 210 (see FIG. 5B), and before or after the emergency repair operation, the optical fiber 330 for recovery is wound on the winding bobbin 100. When the wound state is to be maintained, the tightening bolt 127 is tightened to the through hole 223a to be braked to the support leg 210 (see FIG. 5C). Accordingly, after restoring the optical transmission line by using the optical cable emergency recovery equipment 10 according to the present invention, the optical cable 330 is caught by the foot of the pedestrian or by other tools while moving or working. Even when this tension is applied, the external force of the braking force of the braking device applied to the present invention can be attenuated by rotation of the winding bobbin 100, so that it is possible to effectively cope with undesired external interference or impact on a weak optical cable.

Figure 6 shows a rectangular recovery optical cable applied to the optical cable emergency recovery equipment according to the present invention.

Referring to FIG. 6, the repairing optical cable 330 includes a plurality of optical fibers 331, tensile lines 332 positioned around the optical fiber to resist external forces, and optical fibers 331 and tensile lines 332. The shell 333 is formed of a rectangular cross-sectional shape.

The rectangular optical cable 330 is sequentially wound from one end corresponding to the start point to the other end corresponding to the end point in the winding drum 110. At this time, since the optical cable 330 is composed of a square optical cable 330 having a rectangular cross-sectional shape, the gap between the optical cables 330 wound can be minimized, and thus the optical cables 330 wound on the drum 110 are mutually As the number of turns per unit area is increased, the size of the equipment 10 can be reduced and compact.

In addition, one end corresponding to the start point of the optical cable 330 and the other end corresponding to the end point are accommodated in the connection terminal box as shown in FIG. 2.

7 is a perspective view of a state in which a cover is opened to show a state in which a recovery optical cable is disposed in a connection terminal box as an example applied to the equipment according to the present invention. Here, two connection terminal boxes are arranged on the fixing plate as shown in FIG. 2, and one connection terminal box is accommodated at one end corresponding to the starting point of the optical fiber for recovery to optically connect with one end of the disconnected line optical cable. The other connection terminal box accommodates the other end corresponding to the end point of the recovery optical cable so as to be optically connected to the other end of the disconnected line optical cable. Hereinafter, one connection terminal box will be described in order to avoid duplication of description among two connection terminal boxes.

Referring to FIG. 7, the connection terminal box 310 includes two inlets 312c and 312d provided to allow the optical cable 330 to be inserted therein, and is detachable to the outer side of the fixing plate as shown in FIG. 2. The main body 312 is fixed with a screw, and the cover 312a which is hinged to the main body to open and close. Although not shown here, the main body 312 and the cover 312a are attached to separate binding or binding rings that are paired with each other to maintain the closed state on the main body to protect the inside thereof.

The main body 312 has an adapter 315c for accommodating and optically connecting the optical connector 315b, and an adapter fixing hole 314a for removably fixing the adapter 315c. An adapter mounting bracket 314 welded or screwed therein and a fixture 311 for fixing the optical cable 330 introduced through the inlets 312 and 312d.

The equipment according to the present invention utilizes a fanout kit 340 and an optical connector 315b in the junction box to effectively combine and arrange the ends of the optical fiber for recovery. As described above, a state in which the recovery optical cable is accommodated in the connection terminal box and connected to the fanout kit 340 and the optical connector 315b will be described with reference to FIGS. 7 to 8D.

First, one end of the recovery optical cable 330 wound on the winding bobbin is received inside through the inlet 312d of the main body 312, and the fixing of the optical cable 330 at the inlet 312d is made by the fixture 311. , The fixture 311 may be made in various ways and forms, such as using a hot water pipe or two to three tightening nuts, but will be described with reference to Figure 8a as an example.

FIG. 8A is an exploded perspective view illustrating an example of a fixture for supporting and fixing a recovery optical cable introduced from a main body side of the connection terminal box. FIG.

Referring to FIG. 8A, the optical cable fixing unit 311 includes an optical cable accommodation bolt 311f having a hollow shape and a packing 311b fitted to the optical cable accommodation bolt 311f so that the optical cable 330 can pass therethrough. It is provided with a tightening nut (311a) for holding and fixing the optical cable 330 by screwing the optical cable receiving bolt (311f).

The optical cable accommodating bolt 311f includes a head portion (not shown), one end of which is fixed to the inside of the main body, a screw portion 311e having a thread formed on an outer circumferential surface thereof, and a cone or spherical cross-sectional shape at the other end thereof. It is made of a gripper (311d) having a shape in which the diameter is reduced inside and formed by cutting a predetermined length in the horizontal direction.

The tightening nut 311a has a female thread formed therein to be screwed with the screw portion 311e of the optical cable accommodation bolt 311f, and an end thereof is screwed with the optical cable accommodation bolt 311f. Pressing the grabper 311d of the receiving bolt 311f moves the center of the grabper 311d to tighten the optical cable 330, thereby reducing the diameter inside thereof so that the optical cable 330 can be fixed.

Here, the reference numeral "330a", which is not described, is processed to have a circular cross section using a heat shrink tube or the like so that the optical cable 330 of the rectangular cross-sectional shape applied to the present invention can be more tightly fixed to the packing and the optical cable accommodation bolt. It is a processing part.

Next, the optical cable 330 accommodated inside the main body 312 is peeled off the outer shell to receive the exposed optical fiber 331 in the fanout kit 340 is wrapped in a tube 234 of different colors and then the optical connector ( 315b), which will be described with reference to FIGS. 8B to 8D.

Figure 8b is an exploded perspective view of the fanout kit applied to the present invention, Figure 8c is a cross-sectional view of the end of the optical cable is fixed by the fanout kit and the optical fiber is covered with a tube pulled out, Figure 8d is a fanout kit It is a perspective view showing a state in which the optical fiber drawn through the connected to the optical connector.

Referring to FIGS. 8B and 8C, the fanout kit 340 may include a distribution panel having a plurality of through-holes parallel to each other so that tubes 234 having different colors may be individually inserted and fixed with an adhesive or the like. 343 and the recovery optical cable end and distribution panel so that the fragile optical fiber 331 in the recovery optical cable 330 can be smoothly withdrawn from the optical cable end through the tube 234 fixed to the distribution panel 343. Fixing frames 341 and 342 for fixing 343 are provided. Here, 6 to 12 through holes 343a of the distribution panel 343 may be formed according to the number of optical fibers in the optical cable.

The fixing frames 341 and 342 may have various shapes and structures. However, the fixing frames 341 and 342 may be divided into a lower main body 341 and an upper cover 342 and combined with a screw. The lower body 341 and the upper cover 342 are combined with the optical cable fixing part 341a which can receive and fix the optical cable ends, and the optical cable fixing part 341a so as to guide the optical fiber 331 smoothly. The distribution panel fixing part 341b may be provided to be spaced apart from each other to fix the distribution panel 343. Here, the side surface of the distribution panel 343 and the inner surface of the lower body 341 and the upper cover 342 of the fixing frame to be fixed to each other by providing an uneven portion to be coupled to each other. When the distribution panel 343 and the fixing frames 341 and 342 are mutually assembled, the tubes 234 of different colors are inserted into the through holes 343a in the distribution panel 343 and fixed with adhesive. After the finish processing such as cutting out the excess tube 234 that comes out from one side with a knife, and the distribution panel 343 in the lower panel 341 to the distribution panel fixing portion 341b and the optical cable fixing portion 341a. And the optical cable 330 are arranged to each other by tightening the upper cover 342 with a screw 344 to each other.

In addition, referring to FIG. 8D, the optical fiber 331, which is covered by the tube 234 through the fanout kit 340, is connected to the optical connector 315b, and the optical connector 315b may be used in various optical transmission fields. Shaped optical connectors may be used, for example SC type optical connectors may be utilized. Here, the structure of the SC-type optical connector and the connection method with the optical fiber are the same as those of the general single-core optical jumper code using the SC-type optical connector, and are omitted to avoid duplication of description.

Then, after being connected with the optical connector, it is accommodated in the adapter 315c fixed to the adapter mounting bracket 314 (see Fig. 7).

By using the optical cable emergency repair equipment according to the present invention as described above, the operator can be used more easily and quickly in the emergency repair site will be described as follows.

First, referring to FIG. 2, one of the two connection terminal boxes 310 and 320 fixed to the fixing plate with screws on the outer surface of the winding bobbin 100 in the equipment according to the present invention corresponds to the point of time of the repair optical cable. One end is inserted, and referring to FIG. 7, the optical fiber 331 therein is covered with tubes 234 of different colors while passing through the fanout kit 340 and connected to the optical connector 315b to connect the adapter mounting bracket. It is housed in an adapter 315c that is secured to the kit 314. Referring to FIG. 2, such a repairing optical cable is wound on the second bobbin as a secondary bobbin 121 in the winding bobbin 100, and then passes through the cable outlet groove 122 to the first bobbin as the main bobbin. For example, the length required for emergency recovery of the optical transmission line in a section, for example, 100 m of the recovery optical cable is wound in sequence, and the other end corresponding to the end of the recovery optical cable passes through the cable outlet groove 122 again It is inserted into another connection terminal box which is screwed to the fixing plate, and as shown in FIG. 7, the optical fiber 331 therein is covered with tubes 234 of different colors while passing through the fanout kit 340. It is received by an adapter 315c connected to the optical connector and fixed to the adapter hub bracket 314. Here, it is preferable that the optical fibers forming the same optical transmission line in the optical fiber of the repairing optical cable are covered with the tubes 234 of the same color.

The worker moves with the equipment 10 according to the present invention in case of emergency recovery by disconnection or breakage on the optical transmission line of a certain section. When moving on a flat surface, the wheel 130 and the moving handle ( In the environment to move by using a 230, such as uneven ground or holding the back support 520 and the binding port 240 that binds the handle 230 from the binding ring to release the moving handle 230 The shoulder strap 500 of the backrest 520 is carried on the back in a state in which it is separated from the 520 and rotated so that the bending direction is turned to the front and stored in the backrest 520.

After the worker arrives at the working position where the optical cable on the line is disconnected, the worker prepares by connecting a separate field optical connector to each of the optical fibers in the disconnected line optical cable. There may be various such field optical connectors. A brief description will be made with reference to FIGS. 9A to 9C.

FIG. 9A is an exploded perspective view illustrating an on-site optical connector which can be used in combination with an optical fiber in a line optical cable at a work site, and FIG. 9B is a longitudinal cross-sectional view illustrating the inside of a case in the optical connector of FIG. 9A, and FIG. 9C. Figure 9a is a cross-sectional view showing before and after the operation of fixing the optical fiber to the plug in the optical connector of FIG.

9A and 9B, the optical connector 315a has a cylindrical shape in which a hole through which an optical fiber is exposed is formed, and the ferrule F and the ferrol F are made of a ceramic material. And a path through which the optical fiber 331 passes through is formed at both sides, and is connected to the case C having the optical fiber matching gel MG in the middle of the path, and connected to the case C. A plug P, a boot B for guiding and protecting the external optical fiber 331 to the plug P, and a housing for wrapping and fixing the case C and being accommodated in the adapter 315c. (H) is provided. Here, the optical fiber 331a is embedded between the matching gel (M.G) at the end of the ferrol (F).

Referring to (a) of FIG. 9C, the plug P has a structure for fixing the optical fiber in a state in which the optical fiber is inserted from the outside, and for this purpose, an optical fiber through-hole formed so that the optical fiber can pass through the center portion thereof. ) And an elastic body that elastically wraps around the outer circumferential surface of the optical fiber support (P3) and the optical fiber support (P3) having a wedge groove (P4) formed so as to expand when the wedge (W) is fitted to the side (P2) and the outer cover (P1) is formed to wrap and protect the elastic body (P2) and the wedge insertion hole (P5) is formed so that the wedge (W) can be fitted into the wedge groove (P4). Here, the outer shell P1 is attached to the case C and fixed.

Referring to (b) of FIG. 9C, when the wedge W is inserted into the wedge insertion hole P5 of the shell P1 and the wedge groove P4 of the optical fiber support P3 from the outside, the optical fiber support P3 is opened to open the optical fiber. When the passage is extended and the wedge W is pulled out of the wedge groove P4 while the optical fiber is inserted into the optical fiber hole, the optical fiber support P3 presses the outer peripheral surface of the elastic body P2. The optical fiber is fixed while the optical fiber passes through the optical fiber.

Using the field optical connector 315a having the structure as described above, the worker peels the outer skin from the optical fiber cable for the wire disconnected at the repair work site, and then inserts the wedge (W) into the plug (P) to pass the optical fiber through the plug (P). By expanding the holes, the exposed optical fiber is accommodated in the matching gel (MG) of the boot (B), the plug (P), and the case (C), so that each optical fiber at the end of the optical fiber cable for the line can be easily connected with an optical connector. have.

After the operator connects each of the field optical connectors 315a to the optical fibers in the disconnected line optical cable OC, the fixed plate is connected to the one terminal box corresponding to the time point among the terminal boxes applied to the equipment 10 according to the present invention. After opening the cover by detaching the sensor from FIG. 10, as shown in FIG. 10, the field optical connector 315a is connected to the adapter 315c which receives the optical connector connected to the optical fiber end coated with a certain color in the connection terminal box 312. Optically connected to each other. At this time, the disconnected optical cable (OC) can not move with the entire equipment according to the present invention, such as air or underground, by unscrewing the fixing plate to remove the connection terminal box to loosen the recovery optical cable wound on the auxiliary bobbin Take the junction box and move it to the disconnected position for optical connection. Here, FIG. 10 shows a state in which an optical connection is made by using an optical connector at a recovery work site by an operator.

After the connection of the optical cable for one line is completed on the optical transmission line, the worker releases the braking device, that is, the tightening bolt 127, applied to the present invention so that the winding bobbin 100 can freely rotate. In addition, the operator should move to the other optical fiber connection position of the other cable to be connected on the optical transmission line, and for this purpose, the other connection terminal box corresponding to the end point of the optical fiber for recovery is separated from the fixing plate, and then the rotary knob is used. By rotating the winding bobbin 100 so that the recovery optical cable is released, it moves to the connection position of the optical fiber cable for connection. After the worker moves to the working position, the cover of the junction box 312 is opened in the manner described with reference to FIG. 10, and the optical connector connected to the optical fiber coated with a certain color inside the junction box is found and the optical connector is connected to the adapter ( 315c) to optically connect the optical fiber (OC) for the optical fiber line and the optical fiber for recovery (330) to complete the emergency recovery on the optical transmission line. When the emergency recovery is completed, the operator locks the fastening bolt of the fixing plate so that a constant braking force is applied to the winding bobbin 100 so as to alleviate this when sudden external force is applied to the repaired optical cable 330.

As described above, according to the equipment according to the present invention, since the optical cable is a square-shaped square optical cable is utilized, it is possible to compact the winding bobbin and downsizing the equipment, and the moving handles are detachably attached to each other and the backrest is not used. It is stored separately in the work place and the convenience of movement using the backrest is increased, and after the emergency recovery work, the winding bobbin can have a structure that can be buffered against external force above a certain braking force. It is possible to prevent the loss of the repairing optical cable in the cable.Because the winding bobbin is divided into the main bobbin and the auxiliary bobbin, the end of the optical cable corresponding to the point of time when the recovery optical cable is wound on the winding bobbin is wound by the auxiliary bobbin. Need to move the entire machine to the location In addition, it is convenient to remove and operate only the terminal box in the working environment where the whole equipment is difficult to move, and it is convenient to connect the optical fiber to the existing simple optical connector at both ends of the recovery optical cable and to be accommodated in the adapter in advance. Therefore, it is easy to connect and disconnect, precise optical connection is possible, connection loss can be reduced, and emergency efficiency can be improved by reducing emergency recovery time because it can be connected to another optical connector in the field and then simply plugged into the corresponding adapter. Furthermore, because the optical fiber in the recovery optical cable is covered with a tube, the weak optical fiber is protected and at the same time the workability is improved and the maintenance is also beneficial, and each tube has a different color for identification by the operator. Because they are connected to each other It is advantageous that emergency repair can be done more quickly and simply by checking whether the colors of tubes are the same without requiring separate square ratio to identify the optical fiber.

Claims (11)

A recovery optical cable coated with a plurality of optical fibers, a winding bobbin provided with a drum and a fixing plate to wind the recovery optical cable, and both ends of the recovery optical cable are individually introduced to provide emergency repair of a line optical cable. In the equipment for the emergency repair of the optical cable comprising at least two connection terminal box detachably fixed to the fixing plate so as to support, and a support frame rotatably supported by the winding bobbin: The recovery optical cable, Emergency connection of the optical cable, characterized in that the optical connector is connected to the optical connector inside the connection terminal box is accommodated in the optical adapter, so that the optical connector connected to the optical fiber of the optical cable for the line is accommodated in the optical adapter to be optically connected. equipment. The method of claim 1, The support frame, A through hole formed with a female thread, a roller accommodated in the through hole and contacting the fixed plate, an elastic spring inserted to apply an elastic force to the roller, and a roller accommodated in the through hole by pressing the elastic spring to contact the fixed plate Equipment for emergency repair of the optical cable, characterized in that it has a tightening bolt that can be screwed into the female threaded portion of the through hole so that the braking force can be applied. The method of claim 1, The support frame, Equipment for emergency repair of the optical cable, characterized in that the tool box is attached. The method of claim 1, The support frame, A support leg on which the take-up bobbin is seated and rotatably supported, a wheel mounted on the support leg, a backrest with a shoulder strap connected to the support leg to allow the worker to carry on his back, and a worker to hold and push Equipment for emergency repair of an optical cable, characterized in that it comprises a movable handle detachably connected to the backrest to turn on or off. The method of claim 4, wherein In front of the backrest, Emergency recovery equipment of the optical cable, characterized in that it comprises a moving handle storage that can be stored in the moving handle. The method of claim 1, The winding bobbin, Emergency repair equipment for an optical cable, characterized in that consisting of at least two bobbins that can be wound the recovery optical cable. The method of claim 1, The recovery optical cable is. The optical fiber having a rectangular cross-sectional shape having a plurality of optical fibers disposed at the center, a tensile line disposed to resist external forces on the side of the optical fiber, and an outer shell covering the optical fiber and the tensile line and having an outer circumferential surface formed of a rectangular polyhedron. Equipment for emergency repair of optical cable, characterized in that. The method according to claim 1, wherein The optical fiber of the recovery optical cable in the connection terminal box, Equipment for emergency repair of optical cables, characterized in that they are covered with tubes of different colors. The method of claim 8, In the two connection terminal box, The same optical fiber of the recovery optical cable, Emergency repair equipment for an optical cable, characterized in that the tubes of the same color are covered with each other. The method of claim 8, In the junction box, Emergency recovery of the optical cable further comprises a fan-out kit having an end of the repairing optical cable, and a fixing frame for fixing the distribution panel into which the tube is inserted so that the optical fiber of the repairing optical cable can be fitted equipment. The method of claim 8, An optical connector connected to the optical fiber of the recovery optical cable and an optical fiber connector connected to the optical fiber of the line optical cable are respectively accommodated in the optical adapter in the connection terminal box and optically connected to each other for emergency recovery; The field optical connector, A cylindrical ferrol F in which an optical fiber is exposed at an end thereof; A case in which an optical fiber matching gel (M.G) connected to the optical fiber of the ferrol is formed and a passage is formed to connect the optical fiber of the optical fiber cable for the line with the matching gel; An optical fiber support part P3 having an optical fiber path formed so that the optical fiber of the optical fiber cable for the line can pass through and a wedge groove P4 formed so that the optical fiber path can be expanded when the wedge W is fitted to the side; An outer shell in which the elastic body P2 elastically surrounds the optical fiber support body P3 and the wedge insertion hole P5 is formed to wrap and protect the elastic body P2 and to allow the wedge W to be inserted into the wedge groove P4 ( P1) and plug (P) is connected to the case and can be fixed to the optical fiber of the optical fiber cable for the line from the outside; Boots (B) for guiding and protecting the optical fiber of the line optical cable with a plug; Emergency housing of the optical cable comprising a; housing (H) for wrapping and fixing the case to be accommodated in the adapter.

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