KR100856658B1 - Optical fiber laying method and device using vacuum pump - Google Patents

Abstract

The present invention relates to a method and apparatus for installing an optical fiber using a vacuum pump, and in particular, the inside of the tube is vacuumed by using the vacuum principle of the vacuum pump in an ABF tube installed in a multi-unit house according to the spread of FTTH, A method and apparatus for installing an optical fiber using a vacuum pump for installing an optical fiber in an ABF tube.

The present invention is composed of a fiber inlet device for introducing the optical fiber in the subscriber premises of the apartment house, and the optical fiber taking out device for extracting the optical fiber is installed next to the rack that is formed in the apartment ABB tube underground apartment, The device consists of an optical fiber drum holder for fixing the optical fiber drum, an optical fiber drum shaft support for rotating the optical fiber drum, and an ABF tube fixing guide for fixing the ABF tube.

In addition, the optical fiber extracting device for extracting the optical fiber has a vacuum pump and a vacuum gauge for numerically indicating the vacuum state in the ABF tube, and has a structure in which a vacuum tank for achieving the above-mentioned vacuum stability can be installed. . If you need to introduce the optical cable into your home, install an optical fiber inlet device for supplying the optical fiber in the subscriber's premises, and install the optical fiber withdrawal device necessary to withdraw the optical fiber in the apartment house. The effect can be laid in a way.

Description

The method and the equipment for optical fiber installation using a vaccum pump}

1 is a view showing the structure of an optical fiber insertion apparatus of the optical fiber laying apparatus using a vacuum pump according to the present invention,

2A and 2B are cross-sectional views showing an optical fiber drum fixing means of the optical fiber drawing device of the present invention, and a state in which the optical fiber drum is supported by the fixing device;

Figure 3a is a view showing the structure of the upper end of the central axis of the optical fiber insertion apparatus of the present invention,

Figure 3b is a view showing the structure of the optical fiber drum rotation shaft support of the present invention,

3C and 3D are cross-sectional views illustrating a state in which the optical fiber drum rotation shaft support of the present invention is bound to the central axis and a folded state of the optical fiber rotation shaft support;

Figure 4 is a cross-sectional view showing a rotary handle connection structure of the optical fiber drum rotation shaft of the present invention,

5a and 5b is a view showing the structure and operating state of the ABF tube fixing guide attached to the lower end of the central axis of the optical fiber insertion apparatus according to the present invention,

6a and 6b is a view showing the pedestal structure and operating state of the optical fiber insertion apparatus of the present invention,

7a and 7b is a view showing the overall structure and operation state of the optical fiber insertion apparatus according to the present invention,

8A and 8B are views showing the structure of an optical fiber drawing device of the optical fiber laying device using the vacuum pump according to the present invention;

9A and 9B illustrate a case where a vacuum tank is additionally installed in the optical fiber drawing device of FIG. 8A to protect the vacuum pump from excessive vacuum in the ABF tube.

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

10: central axis 20: optical fiber drum

30: optical fiber drum rotation axis 40: optical fiber drum rotation axis support

50: ABF tube fixing guide 60: support

70: optical fiber drum fixing means 80: ABF tube

90: vacuum tank 100: optical fiber insertion device

200: optical fiber 300: optical fiber drawing device

310: internal ABF tube 330: vacuum pump

340: vacuum tank 350: vacuum gauge

370: Valve

The present invention relates to a method and apparatus for installing an optical fiber using a vacuum pump, and more particularly, as one method for constructing an internal network of an apartment house with an optical cable (optical fiber) to realize FTTH (Fiber To The Home). Optical fiber installation method and device using vacuum pump which connects ABF tube and vacuum pump to install optical fiber in apartment building where ABF (Air Blown Fiber) tube is installed It is about.

As part of recent convergence convergence including high speed internet service, IP-TV service is in the commercialization stage. Existing copper-based track quality is limited in providing high-quality services. There is a trend of installing optical cables, and various methods have been attempted to install optical cables to subscriber homes. In particular, in the case of multi-unit houses, most of the conventional construction of the FTTH is to install the ABF tube first, and then to install the aggregated optical fiber in the ABF tube. Pneumatic laying equipment together with optical fiber is a method of laying only the aggregate optical fiber, because the scale of the equipment is complicated and expensive, it was not easy to spread widely.

Conventional pneumatic spraying method for laying aggregated optical fibers using compressed air is a technique for laying the aggregated optical fibers together with compressed air into the pre-installed ABF tube by using air pressure by a compressor. It is evaluated as an optical communication network construction technology for campus communication networks. This technology is applicable to FTTC (Fiber To The Curb), FTTH (Fiber To The Home) and is widely used worldwide.

The optical fiber laying method by the pneumatic laying device enables bidirectional laying and continuous laying by connecting the ABF tube connector, and enables long distance connectionless laying, improving the communication quality and reducing the connection cost by reducing the connection point, and removing the optical cable sheath. It is evaluated as an efficient installation method in terms of maintenance, since it is not necessary to facilitate a quick connection work, and to facilitate the dismantling and re-installation when the fiber core core is defective.

In addition, the flexibility of the small diameter of the ABF tube makes it possible to be applied to the route of a heavily curved multi-unit house, suitable for the main network and subscriber network configuration of the network infrastructure, and the fast operation at the time of connecting the optical fiber with the embossed sheath of the aggregated fiber and light weight. There is a characteristic.

However, the conventional pneumatic spraying method using the compressed air is a device that is made so that the pneumatic wrapping equipment used for laying only the aggregated optical fiber, the operation of the compressor to generate the air pressure noise is severe and cause inconvenience to the subscribers And there is a problem such as inconvenience caused during transportation due to the volume of the equipment.

Therefore, the present invention is to solve the above-mentioned conventional problems, an object of the present invention to make it easier and more convenient to construct the optical cable for the subscriber network section by using a small-sized, light-weight optical fiber entry device, and the optical fiber extraction device. In addition, the present invention provides a method and apparatus for installing an optical fiber using a vacuum pump that enables the laying of an optical fiber having a predetermined diameter in addition to the aggregated optical fiber in an apartment house in which an existing ABF tube is installed.

The optical fiber installation device using the vacuum pump of the present invention for achieving the above object to achieve the above object is to install the optical fiber in the ABF tube in the state in which the ABF tube is installed from the subscriber's house of the apartment house to the subfloor ABF tube cluster An optical fiber laying device for laying,

It consists of an optical fiber inlet device for introducing the optical fiber to the ABF tube in the subscriber's house of the apartment house, and an optical fiber taking-out device for extracting the optical fiber by being installed next to the rack in which the underground ABF tube is formed in the apartment house. The inside of the tube is formed in a vacuum state to install an optical fiber.

The optical fiber drawing device of the present invention includes a central axis having a predetermined length in the longitudinal direction, an optical fiber drum rotating shaft supporter fastened to the upper end of the central axis, and an optical fiber drum rotating shaft which is fastened to the optical fiber drum rotating shaft support laterally; An optical fiber drum fastened by the fixing means to the rotating shaft of the optical fiber drum, an ABF tube fixing guide attached to a predetermined height of the central axis in the longitudinal direction, and a supporting part which is fastened to the bottom of the central axis to support the entire apparatus. It is desirable to make it.

The optical fiber drum fixing means is made of a fastener located on both sides of the optical fiber drum, and a fixing screw for fixing the fastener to the optical fiber drum rotation shaft.

In addition, the optical fiber rotating shaft support of the optical fiber inlet device, the ABF tube fixing guide, the supporting portion, the optical fiber drum rotating handle portion connected to one side of the optical fiber drum rotating shaft has a structure that is folded in the structure based on each hinge point. By reducing, it is easy to store and to carry when moving.

The optical fiber extracting apparatus of the present invention includes an internal ABF tube having a T-shape, an ABF tube connector attached to one end of the internal ABF tube, a vacuum pump installed at the inner ABF tube side end, and the vacuum pump. The vacuum gauge is installed on the path of the inner ABF tube connected to the, characterized in that consisting of a configuration comprising a control valve for controlling the vacuum state inside the ABF tube to be blocked from the outside.

A vacuum tank may be additionally installed between the vacuum pump and the vacuum gauge.

In addition, the optical fiber installation method using the vacuum pump of the present invention for achieving the above object is in the state in which the ABF tube is installed from the subscriber premises of the apartment house to the sub-abdominal ABF tube star cluster, the optical fiber inlet device and the optical fiber extracting device By using the inside of the ABF tube in a vacuum state, characterized in that to install the optical fiber in the ABF tube.

In addition, the optical fiber installation method using the vacuum pump of the present invention for achieving the above object in the state in which the ABF tube is installed from the subscriber premises of the apartment house to the sub-abdominal ABF tube star cluster, the optical fiber inlet device and the optical fiber withdrawal of the substrate An optical fiber installation method for introducing and placing an optical fiber in the ABF tube by using a device, comprising the steps of: mounting an optical fiber drum in which the optical fiber is wound on the optical fiber introducing device; and introducing the optical fiber through the ABF tube installed in the household terminal of the subscriber. Fixing the ABF tube to the ABF tube fixing holder of the ABF tube fixing guide using the ABF tube connector to extend the device, and the tube between the optical fiber extractor and the ABF tube of the star cluster rack Connecting the ABF tube to the vacuum pump using a connector; By operating the vacuum pump of the optical fiber take-off, it characterized in that it comprises the step of laying the optical fiber is to occur.

In the above, it is preferable that the number of optical fiber drums bound to the optical fiber drum rotating shaft be mounted in at least one or more groups according to the type of system of the subscriber.

It is preferable to form a center portion of the ABF tube connector of the optical fiber drawing device with a transparent material so that it is possible to visually determine whether the laying of the optical fiber is completed.

The optical fiber extracting device of the present invention installed in the apartment house next to the ABF tube star cluster rack to extract the optical fiber has a vacuum pump connected to the ABF tube and can be equipped with a vacuum gauge for displaying the vacuum state in the ABF tube .

In addition, it is preferable to install the valve at the end of the ABF tube connected to the vacuum pump to open the valve when releasing the vacuum after the work is finished.

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

1 is a view showing the structure of an optical fiber insertion apparatus of the optical fiber laying apparatus using a vacuum pump according to the present invention,

2A and 2B are sectional views showing a state in which the optical fiber holding member and the optical fiber drum are supported by the holding member in the optical fiber drawing device of FIG.

Referring to the drawings, the optical fiber laying apparatus according to the present invention is a rack that consists of the optical fiber inlet device 100, which is a device for introducing the optical fiber to the ABF tube in the subscriber's house of the apartment house largely clustered underground ABF tube (80) It is installed by the side is divided into the optical fiber extraction apparatus 300 for taking out the optical fiber.

In the above configuration, first, the configuration of the optical fiber insertion apparatus 100 of the present invention will be described.

As shown, the optical fiber inlet device 100 of the present invention and the central axis 10 having a predetermined length in the longitudinal direction, and the optical fiber drum rotation shaft support 40 is bound to the upper end of the central axis 10 and And an optical fiber drum rotating shaft 30 which is penetrated through the optical fiber drum rotating shaft support 40 in the lateral direction, and an optical fiber drum 20 which is fastened to the optical fiber drum rotating shaft 30 by fixing means 70. ABF tube fixing guide 50 is attached to a predetermined height of the central axis 10 in the longitudinal direction, and is configured to include a pedestal 60 is attached to the bottom of the central axis 10 to support the entire device.

As shown in FIG. 2A, the optical fiber drum fixing means 70 includes the fasteners 71 positioned at both sides of the optical fiber drum 20, and the fasteners 71 fixed to the optical fiber drum rotating shaft 30. It consists of a set screw (73).

The optical fiber drum 20 is attached to the optical fiber drum rotating shaft 30 by the fastener 71, and the optical fiber drum 20 is located at the center of the fastener 71 on both sides thereof, and is fixed by the fastening screw 73. Its position is fixed.

Figure 3a is a view showing the structure of the upper end of the central axis 10 of the optical fiber insertion apparatus of the present invention, Figure 3b is a view showing the structure of the optical fiber drum rotation shaft support 40 of the present invention, Figures 3c and 3d It is sectional drawing which shows the state in which the optical fiber drum rotation shaft support 40 of the present invention is attached to the central axis 10, and the folded state of the optical fiber rotation shaft support 40. As shown in FIG.

In addition, Figure 4 is a cross-sectional view showing a rotation handle connection structure of the optical fiber drum rotation shaft of the present invention.

As shown in FIG. 3A, the central shaft 10 of the present invention has a bracket having a predetermined shape, for example, a middle-shaped groove 13 formed therein, capable of rotating and binding the optical fiber drum rotating shaft support 40 at an upper end thereof. 11) is formed in a structure, the through-hole 15 is formed on the side of the bracket 11 is configured to pass through the binding screw 17. The bottom fixing portion 41 of the optical fiber drum rotation shaft support 40 is inserted into the cisoidal groove 13 in the center, and the optical fiber drum rotation shaft support 40 is folded by rotating the binding screw 17 on the side to the rotation shaft. Form a structure.

As shown in FIG. 3B, the optical fiber drum rotary shaft support 40 of the present invention has a body portion 43 formed therein with a through hole 45 through which the optical fiber drum rotary shaft 30 passes, and the body portion ( It extends to the bottom of the 43 is composed of a binding portion 41 is fixed to the upper end of the central axis (10). In the present embodiment, the body portion 43 is formed in a cylindrical shape having a predetermined length in the transverse direction, the lower binding portion 41 is formed in a straight portion to be inserted into the citron groove 13 of the upper end of the central axis (10). do.

A through hole 47 is also formed at the side of the bottom binding portion 41 of the optical fiber drum rotating shaft support 40, and the fixing screw passes through the through hole 15 at the upper end of the central shaft through the through portion 47. (17) will pass.

In particular, as shown in Figure 3d, by using the fixing screw 17 as the central axis of rotation, the upper side of the optical fiber drum rotation shaft support 40 is formed in a structure that is folded and folded within a 90 degree range is easy to store It has the advantage of being convenient to carry when moving.

On the other hand, as shown in Figure 4, one side end of the optical fiber drum rotating shaft 30 is connected to the rotary handle (31 of Figure 4) to facilitate the rotation of the optical fiber drum 20 when the optical fiber is laid.

The bearing is mounted inside the optical fiber drum rotating shaft support 40 supporting the optical fiber drum rotating shaft 30 to allow the optical fiber drum rotating shaft 30 to be flexibly rotated.

5a and 5b is a view showing the structure of the ABF tube fixing guide 50 attached to the lower end of the central axis 10 of the optical fiber insertion apparatus 100 according to the present invention, Figure 5a is a cross-sectional view, Figure 5b is The front book is shown.

As described above, the ABF tube fixing guide 50 is attached to the central axis 10 of the optical fiber insertion device of the present invention, and the ABF tube fixing guide 50 is attached to the guide fastening member which is bound on the central axis 10. (51), the guide member (53) which is fixed to one side of the guide fastening member (51) and extends a predetermined length in the lateral direction, and a fixing screw on the connection portion of the guide fastening member (51) and the guide member (53). (18) is inserted. In addition, the ABF tube fixing holder 55 is installed at the middle portion of the guide member 53. As shown in FIG. 5B, the grips 55a and 55b holding the ABF tube 80 inserted therein are provided. It is formed in a zigzag shape. The grips 55a and 55b serve to hold the ABF tube 80 with a predetermined strength within a range in which the ABF tube 80 can be moved.

In addition, the guide member 53, to which the ABF tube fixing holder 55 is attached, is formed in a structure in which the folding is performed by rotating around the coupling part with the fastening member 51, so that it is easy to store when not in use and due to the folding when moving. Reduced volume has the advantage of easy to carry.

And ABF tube fixing guide 50 is configured to adjust the height so that the appropriate height is maintained according to the working environment. For example, by using the height adjusting screw 17, the guide fastening member 51 is brought into close contact with the central axis 10, or by releasing the close contact state, the position can be adjusted up and down.

6a and 6b is a view showing the structure and the operating state of the support portion 60 of the optical fiber insertion apparatus 100 according to the present invention,

7A and 7B are views showing the overall structure and operating state of the optical fiber insertion apparatus 100 according to the present invention.

Support portion 60 of the optical fiber insertion apparatus 100 of the present invention is located in the upper center and the upper link member 66 is formed with a predetermined size space into which a predetermined length of the central axis 10 is inserted, and the link A plurality of pedestals 61 extending from the member 66 while keeping a predetermined interval downward, and one end is connected to the middle portion of each pedestal 61 to connect the pedestal 61 and the pedestal 61 The pedestal connecting member 63 and the other end of the pedestal connecting member 63 is bound to one side, and consists of a configuration including a pedestal balance shaft 65 to move in the vertical direction in accordance with the opening and closing of the pedestal 61.

Therefore, when the support portion 60 of the present invention is used, the pedestal 61 is opened and at the same time the pedestal balance shaft 65 in the center is lowered, and when not in use, the pedestal 61 is the upper link member 66. In the case of forming a straight line around the center of the pedestal balance shaft 65 is moved upward.

Referring to FIG. 7B, the optical fiber drum rotating shaft support 30, the optical fiber drum rotating handle 31, and the ABF tube fixing guide 50 intermediate the central shaft 10 are folded as well as the supporting part 60, respectively. It can be seen that the entire volume of the pulling device 100 is reduced.

8A to 9B are views illustrating the structure of the optical fiber drawing device 200 among the optical fiber laying devices using the vacuum pump according to the present invention.

8A is a schematic diagram showing the overall structure of the optical fiber drawing device 300,

FIG. 8B is a view illustrating a state in which the optical fiber 200 is drawn out to the vacuum pump side by connecting the ABF tube 80 to the optical fiber drawing device 300 of FIG. 8A.

As shown, the optical fiber drawing device 300 according to the present invention is an internal ABF tube 310 of the tee (T) shape, and the ABF tube connector 390 which is bound to one end of the inner ABF tube 310. And a vacuum pump 330 installed at an end portion of the inner ABF tube 310 that is bent in a tee shape, and a vacuum gauge 350 installed in a path on the inner ABF tube 310 connected to the vacuum pump 330. It consists of a configuration including a control valve 370 for adjusting the internal vacuum state of the ABF tube 310 to be blocked from the outside.

In the above configuration, when the number of floors of the multi-family house or the length of the ABF tube 80 is long and the efficiency of the vacuum pump 330 decreases, the vacuum tank 340 may be additionally installed together with the vacuum pump 330.

In the optical fiber extracting apparatus 300 of the present invention configured as described above, the inner ABF tube 310 inside the vacuum state using the vacuum pump 330 to withdraw the optical fiber 200 in the ABF tube 80 in a vacuum state Make. At this time, the front end portion 210 of the optical fiber 200 to form a bundle having a size similar to the inner diameter of the ABF tube (80). For example, by enclosing the corresponding portion in the inlet tip portion 210 of the optical fiber with a Teflon tape round to form a bundle similar to the inner diameter of the ABF tube 80 by minimizing the free space generated due to the difference in size between the ABF tube 80 and the inner diameter during insertion When the optical fiber 200 is drawn in, more efficient laying can be performed. At the same time as the operation of the optical fiber drawing device 300, the laying of the optical fiber is made, and at this time, the optical fiber 200 wound on the optical fiber drum 20 can be smoothly introduced into the ABF tube 80.

Along with this, the optical fiber drum rotation handle 31 connected to the optical fiber drum rotating shaft 30 by hand may be used to facilitate the optical fiber insertion.

9A and 9B illustrate a state in which the vacuum tank 340 is additionally installed on the inner ABF tube 310 in FIGS. 8A and 8B.

That is, Figure 9a is a view showing a case where the vacuum tank 340 is additionally installed to protect the vacuum pump 330 from the excessive vacuum in the ABF tube 310 in the optical fiber extraction apparatus 300 of the present invention,

9B is a view illustrating a state in which the optical fiber 200 is drawn out by the vacuum pump 330 by connecting the ABF tube 80 to the optical fiber drawing device 300 of FIG. 9A.

As shown, the vacuum pump 330 is installed to vacuum the inside of the ABF tube 80, and the optical fiber 200 in the ABF tube 80 connected to the ABF tube connector 390 is pulled out by the vacuum pressure. To do that.

The method of installing the optical fiber by using the optical fiber insertion device 100 and the optical fiber extraction device 300 of the present invention having the above-described configuration, the generation of households in the apartment house subscribers to install the optical cable in the premises network section of the apartment house It is an easy way to install various types of optical fibers in the ABF tube installed from the terminal box or the outlet to the ABF star cluster rack.

Hereinafter, a process of laying the optical fiber in the ABF tube by using the two optical fiber insertion device 100 and the optical fiber laying device 300 will be described.

First, in the state in which the ABF tube 80 is installed from the subscriber's house in the apartment house to the subfloor ABF tube cluster, the optical fiber drum is wound around the optical fiber inlet device 100 installed in the subscriber's house to install the optical fiber. (20). At this time, the optical fiber drum 20 is fixed using the optical fiber drum fixing means 70 so as not to be separated. The fixing means 70 is composed of two optical fiber drum fixture 71 and the fixing screw 73, the fixing screw 73 is the optical fiber drum 20 together with the fixture 71, the optical fiber drum rotating shaft 30 It is fixed by close contact with.

When the fixing of the optical fiber drum 20 is completed, the ABF tube fixing of the ABF tube fixing guide 50 is fixed by using the ABF tube connector to extend the ABF tube 80 installed in the subscriber home generation terminal box to the optical fiber inlet device 100. The ABF tube 80 is fixed to the holder (55 in FIG. 5A). The ABF tube fixing holder 55 prevents the ABF tube 80 from moving in a range where a force of a predetermined size or more is not applied by the zigzag grips 55a and 55b formed therein.

The support part 60 of the optical fiber insertion device 100 is configured to be easily folded by moving the pedestal balance shaft (65 in FIG. 6A) upward.

Before placing the optical fiber in the ABF tube 80 in the optical fiber drum 20 of the optical fiber inlet device 100, there is a possibility that a certain amount of space exists in the inner diameter of the ABF tube 80, so that air can be introduced from the outside during the internal vacuum. There is this. In order to prevent this, as shown in FIG. 8B, the optical fiber 200 is wound with a predetermined material, such as teflon tape, on the starting end of the optical fiber 200 to have a volume similar to the inner diameter of the ABF tube 80. At the time of introduction, the space with the inner diameter of the ABF tube 80 is minimized so that the fiber is laid more efficiently.

In addition, the installation of the optical fiber 200 is performed at the same time as the operation of the optical fiber drawing device 300, wherein the optical fiber drum rotating handle 31 connected to the optical fiber drum rotating shaft 30 by hand, the optical fiber drum 20 ) Can be introduced into the ABF tube 80 more smoothly.

After the preparation of the optical fiber drawing device 100 in the subscriber's premises, the ABF tube using the tube connector (390 in FIG. 8A) between the optical fiber drawing device 300 and the ABF tube 80 of the star cluster rack in the ABF tube star cluster rack in the apartment house basement. The tube 80 is prepared to be connected to the vacuum pump 330. At this time, the valve 370 attached to the inner ABF tube 310 end of the vacuum pump 330 should be in a locked state.

When the optical fiber insertion device 100 in the subscriber's premises for installing the optical fiber and the optical fiber extraction device 300 in the basement of the apartment house are installed, the operation switch of the vacuum pump 330 of the optical fiber extraction device 300 is operated. At the same time, the optical fiber insertion device 100 in the subscriber's home introduces the optical fiber 200 into the ABF tube 80 and installs the optical fiber drum rotating handle 31 while rotating together. When two pairs of optical fibers are to be installed at the same time according to the system type of the subscriber, two optical fiber drums 20 may be mounted on the optical fiber drum rotating shaft 30.

After a certain time, the optical fiber 200 installed in the ABF tube 80 is drawn out into the internal ABF tube 310 inside the vacuum pump side of the apartment house, and the extracted optical fiber 200 is the optical fiber from the optical fiber inlet device 100. By reaching the drawing device 300, the optical fiber laying work is completed.

On the other hand, when the center portion of the ABF tube connector 390 of the optical fiber drawing device 300 of the present invention is made transparent, it is possible to visually determine whether the laying of the optical fiber is completed.

When the laying operation of the optical fiber is completed, by folding each part of the optical fiber insertion apparatus 100 of the present invention to reduce the volume to be convenient to transport.

In the optical fiber insertion apparatus 100 of the present invention, the foldable components are the optical fiber rotating shaft support 40, the ABF tube fixing guide 50, the supporting part 60, and the optical fiber drum rotating handle 31, as described above. .

Subsequently, the vacuum pump 330 of the optical fiber extractor 300 is turned off to terminate the operation of the vacuum pump 330, and the valve 370 of the tube end is opened to release the vacuum in the internal ABF tube 310. Let's do it.

Since the ABF tube 80 from the internal ABF tube 310 connected to the optical fiber drawing device 300 to the ABF tube 80 point of the optical fiber drawing device 100 in the subscriber's home is sealed, the ABF tube (at the same time as the vacuum pump 330 is operated) 80, the inside is in a vacuum state, and the optical fiber 200 introduced from the optical fiber inlet device 100 is installed up to the internal ABF tube 310 connected to the vacuum pump 330 along the ABF tube 80.

After the completion of the optical fiber installation, the subscriber premises remove the ABF tube 80 fixed to the ABF tube fixing guide 50 to form an optical fiber, and the ABF tube connector ( If the optical fiber is formed after removing the ABF tube 80 connected to 390, the optical fiber laying work in the subscriber network section in the apartment house is completed.

As described above, when the optical fiber is installed using the vacuum pump according to the technique of the present invention, the inside of the ABF tube is vacuumed with the vacuum pump, and then the optical fiber is introduced, so that the optical fiber can be safely and conveniently installed. Since the fiber is drawn in by rotating the fiber drum in the house, the fiber loss due to the influence of the tensile force on the fiber can be reduced.

In addition, regardless of the type of optical fiber, not only the aggregate optical fiber applied to the existing pneumatic spraying method but also the optical fiber having a diameter of 900 μm can be laid, and at the same time, two sets of optical fibers can be laid. Exert.

Claims (11)

An optical fiber laying apparatus for laying an optical fiber in an ABF tube in a state in which an ABF tube is installed from a subscriber's home of a multi-family house to an ABF tube cluster in a winter park, An optical fiber inlet device for introducing an optical fiber to an ABF tube in a subscriber's house It is installed next to the rack where the ABF tube of the multi-unit housing is formed and includes an optical fiber drawing device for drawing the optical fiber. The optical fiber laying apparatus using the vacuum pump, characterized in that to form an optical fiber by forming the inside of the ABF tube in a vacuum state using the vacuum pump of the optical fiber extraction device. The method of claim 1, The optical fiber insertion device includes a central axis having a predetermined length in a longitudinal direction, an optical fiber drum rotating shaft supporter fastened to an upper end of the central axis, an optical fiber drum rotating shaft fastened through the optical fiber drum rotating shaft support transversely, and the optical fiber drum An optical fiber drum fastened by a fixing means to a rotating shaft, an ABF tube fixing guide attached to a predetermined height of the central axis in the longitudinal direction, and a supporting part fastened to the bottom of the central axis to support the entire apparatus. Optical fiber laying device using a vacuum pump. The method of claim 2, The optical fiber drum fixing means is a fiber optic installation device using a vacuum pump, characterized in that consisting of a fastener which is located on both sides of the optical fiber drum, and a fixing screw for fixing the fastener to the optical fiber drum rotation axis. The method of claim 2, The optical fiber rotating shaft support of the optical fiber inlet device, the ABF tube fixing guide, the supporting portion, the optical fiber drum rotating handle portion connected to one side of the optical fiber drum rotating shaft is a vacuum structure, characterized in that the folding is made based on each hinge point Optical fiber laying device using pump. The method of claim 1, The optical fiber drawing device includes an internal ABF tube having a T-shape, an ABF tube connector attached to one end of the inner ABF tube, a vacuum pump installed at an end of the inner ABF tube, and an internal connection with the vacuum pump. And a vacuum gauge installed on a path of an ABF tube, and a control valve for controlling a vacuum state inside the ABF tube to be blocked from the outside. The method of claim 5, wherein Optical fiber laying apparatus using a vacuum pump, characterized in that the vacuum tank is further installed between the vacuum pump and the vacuum gauge. In the state where the ABF tube is installed from the subscriber's premises of the apartment house to the subfloor ABF tube cluster, the inside of the ABF tube is made into a vacuum state using the optical fiber introducing device of claim 2 and the optical fiber drawing device of claim 5, An optical fiber laying method using a vacuum pump, characterized in that the optical fiber is installed inside the ABF tube. With the ABF tube installed from the subscriber's premises of the apartment house to the subfloor ABF tube cluster, the optical fiber introducing device of claim 2 and the optical fiber extracting device of claim 5 are used to draw and install the optical fiber in the ABF tube. As a fiber laying method, Mounting an optical fiber drum in which an optical fiber is wound on the optical fiber insertion device; Fixing the ABF tube to the ABF tube fixing holder of the ABF tube fixing guide by using the ABF tube connector to extend the ABF tube installed in the subscriber home generation terminal box to the optical fiber drawing device; Connecting the ABF tube to the vacuum pump by using a tube connector between the optical fiber extraction device and the ABF tube of the star rack in the ABF tube star cluster rack in the apartment house; And operating the vacuum pump of the optical fiber extracting device so that the optical fiber is laid. The method of claim 8, And the number of optical fiber drums bound to the optical fiber drum rotating shaft is installed in at least one or more groups according to the type of system of the subscriber. The method of claim 8, The center portion of the ABF tube connector of the optical fiber drawing device is formed of a transparent material, so that it is possible to visually determine whether the installation of the optical fiber, characterized in that the optical fiber using a vacuum pump. The method of claim 8, In the optical fiber insertion apparatus of the subscriber premises, when the optical fiber is introduced into the ABF tube, the optical fiber installation method using a vacuum pump, characterized in that for rotating the optical fiber drum rotating handle connected to one side of the optical fiber drum rotation axis.

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