KR100783137B1 - Device for blown fiber unit blowing installation - Google Patents

Abstract

A device for installing an optical fiber unit is provided to easily supply the optical fiber unit into a blowing head by arranging a unit guiding nipple in front of the blowing head. A driving roller unit(20) includes an inlet hole and driving rollers(21,21'), which are arranged to oppose each other with the inlet hole between them. An optical fiber unit is introduced through the inlet hole, and the optical fiber unit is pushed backwards by the driving rollers. A blowing head unit(30) includes a unit path(31), which is opposed to the inlet hole. The optical fiber passes through the unit path by an air pressure. A unit guiding member(40) is coupled with and separated from a front center of the blowing head unit. The unit guiding member guides the optical fiber from the inlet hole to the unit path. A tube fixing unit(61) is coupled with an outlet portion of the unit path and fixes a tube at a rear portion of the blowing head unit. The optical first unit is inserted into the tube.

Description

Device for blown fiber unit blowing installation

The present invention relates to an apparatus for laying an optical fiber unit, and more particularly, to an apparatus capable of further improving the laying efficiency by preventing the leakage of compressed air and improving the laying tube coupling structure.

The method of installing the gas pressure installation tube in advance at the optical fiber installation point and inserting the optical fiber unit inside the tube using the gas pressure is easy to install and remove the optical fiber unit and the construction cost is low, so the FTTH (Fiber To The It is widely used as a fiber laying technology in a narrow space such as Home.

The gas pressure laying method is a method in which a fiber-optic unit including 1 to 12 core optical fibers, commonly referred to as an ABF (Air Brown Fiber), is inserted into a tube for installation and is applied by gas pressure to proceed inside the tube. Is performed.

The conventional optical fiber unit installation apparatus has an inlet A for the inflow of the optical fiber unit supply unit 1, the optical fiber unit U continuously provided from the optical fiber unit supply unit 1, as shown in FIG. While communicating with (A), the blower head (2) having an outlet (B) to which the gas pressure laying tube (3) is coupled, and compressed air is applied to the outlet (B) of the blower head (2) and the inlet (A). ) And the optical fiber unit (U) is rotated on both sides with the pressurizing means (7) and the optical fiber unit (U) interposed therebetween so as to insert the optical fiber unit (U) introduced into the gas pressure installation tube (3). A drive roller portion 4 is provided which pushes into the pressure installation tube 3.

Further, a buckling sensor 5 is further installed in the blowing head 2, and the buckling sensor 5 detects this when the optical fiber unit U stops in the gas pressure installation tube due to an obstacle while the optical fiber unit U is in progress. To stop the installation.

In addition, the blowing head 2 is provided with a seal 6 to prevent the compressed air supplied from the pressurizing means 7 to flow back to the inlet side of the optical fiber unit.

In the conventional installation apparatus having the above configuration, the optical fiber unit U continuously introduced into the blowing head 2 is controlled by the driving roller unit 4 while the traveling speed is controlled by the pressing means 7. It is inserted and installed into the installation tube 3 by the gas pressure provided.

The conventional apparatus has a structure in which a main body of the blowing head 2 is divided into upper and lower cases as shown in FIG. In this case, although the sealing part 5 is provided in the blowing head 2, the blowing head has a form in which the upper case and the lower case are combined so that compressed air flows out into the physical separation gap generated at the mating surface, thereby lowering the installation force. There is a problem.

In addition, the installation tube coupled to the outlet (B) of the blowing head (2) is to be combined in the form of being simply inserted into the through hole of the outlet, inserting the installation tube by the external force into the through hole is not only cumbersome, Since the state is simply coupled to the through-hole, the physical coupling force is constantly receiving a force pushed to the outside by the compressed air provided continuously has a problem that can not be firmly fixed.

In addition, since the installation tube 3 is simply coupled to the hole, the compressed air supplied to the inside of the blowing head 2 is continuously introduced into the installation tube 3, and the compressed tube is introduced into the installation tube 3. Gradually pushed away from the exit (B) will cause a problem.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an optical fiber unit installation apparatus which minimizes external leakage of compressed air and which can be firmly fixed to the installation tube.

Other objects and advantages of the present invention will be described below and will be appreciated by the embodiments of the present invention. In addition, the objects and advantages of the present invention can be realized by the configuration and combination of configurations shown in the claims.

An optical fiber unit installation apparatus according to the present invention for realizing the above object is an optical fiber unit installation apparatus for installing an optical fiber unit at a gas pressure by a pressurizing means, the apparatus having an entrance port penetrated at a center thereof and facing the entrance port. A drive roller unit including a drive roller, the drive roller unit pushing the optical fiber unit from the optical fiber unit supplied from the optical fiber unit supply unit to the entrance and pushing the entered optical fiber unit to the rear side; A blowing head portion penetrating at a center thereof to face the entry port and including a unit passage through which the optical fiber unit passes at a gas pressure by a pressing means; Unit guide means for fastening and detaching at the front center of the blower head portion so as to correspond to the inlet side of the unit passage, and guiding the optical fiber unit having passed through the entrance port to the unit passage; And tube fixing means which is fastened to the outlet side of the unit passage and fixes the tube into which the optical fiber unit having passed through the unit passage is inserted at the rear of the blowing head portion.

In addition, the blowing head portion is preferably provided as an integral housing, wherein the unit guide means is composed of a polygonal nut-shaped tightening portion and a screw coupling portion formed on one side of the tightening portion, and guide holes for guiding the optical fiber unit inside. It is preferable that it consists of the formed unit guide nipple.

In another aspect of the optical fiber unit installation apparatus according to the present invention, the guide hole is formed so that the inner circumferential surface is inclined inward and the diameter of the end thereof has a diameter corresponding to the diameter of the optical fiber unit is inserted into the guide and is made of an elastic material Characterized in that made.

In addition, the blowing head or the driving roller is preferably configured to form one or more screw holes arranged at equal intervals horizontally on one side.

Furthermore, the unit guide nipple has one or more guide holes of a diameter corresponding to the one or more diameters so as to be replaced according to the diameter of the optical fiber unit inserted into the one or more diameters, and is provided with one or more screw holes in the blowing head portion. Can be.

Preferably, the tube fixing means of the optical fiber unit installation apparatus according to the present invention is coupled to the outlet side of the unit passage of the blowing head portion, the connector consisting of a screw coupling part and a connector having a life inside; A first nut is formed on the front side and a second male thread is formed on the rear side, and the first male thread is fastened to the connection part of the connection part after the tube is inserted into the inner life. A tube fixing nipple for inserting the tip of the tube into the hole of the connector; And a nipple cap that is fastened to the second male threaded portion so that the tube is firmly fixed in the tube fixing nipple.

In addition, the second male screw portion may be formed by being partially cut with a + ruler so as to be spaced outwardly, and a plurality of anti-slip protrusions are formed on an inner circumferential surface thereof so as to contact the outer circumferential surface of the tube into which the anti-slip protrusions are inserted. It can be configured to prevent the rolling phenomenon of.

Furthermore, a packing is provided between the hole of the connector and the outer circumference of the tube inserted therein, and the protrusion is formed to be inclined toward the inner diameter so that the packing is in close contact with the tube and is formed to extend to the first male screw. It is preferable to construct.

On the other hand, the unit passage is a gas inlet through which the gas flows by the pressurizing means is formed, the gas inlet is preferably formed in a form inclined in the direction of the installation of the optical fiber unit.

In addition, the driving roller portion may be formed in the rear flange portion, the blower head portion may be configured to be formed on the front surface of the flange portion that is coupled to and separated from the flange of the drive roller to enable the coupling and separation with the drive roller, The driving roller part or the blower head part may be configured to have a magnetic material on a lower surface thereof.

According to the optical fiber unit installation apparatus according to the present invention, the driving roller and the blower head unit are physically separated and the blower head unit is integrally formed, so that the compressed air supplied to the blower head unit can be prevented from leaking to the outside. This can increase the laying power of the optical fiber unit.

In addition, the unit guide nipple is installed in front of the blowing head part, so that the supply of the optical fiber unit is easy with the blowing head part, and the unit guide nipple can be immediately replaced and used according to the diameter size of the optical fiber unit. It is therefore maneuverable and efficient.

In addition, the tube can be firmly fixed through the optical fiber unit installation apparatus according to the present invention, thereby effectively overcoming the phenomenon of detachment from the apparatus.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Figure 3 is a schematic stage showing the configuration of the optical fiber unit installation apparatus according to the present invention, the optical fiber unit installation apparatus according to the present invention is the optical fiber unit supply unit 10, the drive roller unit 20, the blowing head portion 30, Pressing means 101, unit guide means and tube fixing means.

The optical fiber unit supply unit 10 is provided with a conventional gas pressure installation optical fiber unit (U) wound in a predetermined bobbin, and the optical fiber unit provided in the optical fiber unit supply unit 10 is a single or multiple drive roller unit ( 20) and the blowing head 30 is inserted into the gas pressure novel tube 80 is installed.

As shown in FIG. 3, the driving roller part 20 has a through hole 22 penetrated in the center thereof, and includes driving rollers 21 and 21 'facing up and down with the access hole 22 therebetween. One side of the body is provided with a hinge may be configured to be opened and closed for installation of the drive rollers (21, 21 ').

In particular, since the driving roller 20 is physically separated from the blowing head 30 to be described later, the flange 23 formed on the rear surface of the driving roller 20 is a plan of the blowing head 30. It is configured to be coupled to and separated from the branch 34. In addition, as shown in FIG. 10, a lower surface of the blower head unit or the driving roller unit includes a magnetic material 55 to fix the magnetic portion 57 of the base substrate 56 that can be installed according to a working environment. Embodiments are also possible, and in the case of fixing by magnetic, it is easy to install and dismantle according to the working environment.

The driving roller unit 20 has an optical fiber unit supplied from the optical fiber unit supply unit 10 enters the entrance port 22 and the optical fiber unit U entered by the driving roller to the rear side, that is, the blowing head unit 30. Push out.

The blowing head portion 30 penetrates through the center thereof, is opposed to the entry port 22, and a unit passage 31 through which the optical fiber unit U passes through the gas pressure generated therein by the pressurizing means 101 is formed. The flange portion 34 is fastened and separated from the flange portion 23 of the drive roller portion 20 so as to be coupled to and separated from the drive roller portion 20 on the front surface.

In particular, since the blower head unit 30 is blocked in all directions as shown in FIG. 4, that is, it is provided as an integrated enclosure, it is possible to fundamentally suppress the possibility that the compressed air supplied to the inside can flow out. In addition, if one side of the blowing head portion 30 is formed with a plurality of screw holes 33 to which the unit guide nipple 40 to be described later to be fastened as shown in FIG. 4 are arranged at equal intervals in the horizontal direction, the front and rear surfaces will be described later. Fastening holes 32 and 32 'are formed to fasten the unit guide nipple 40 and the connector 51 of the tube fixing means.

In addition, a supply port 35 to which a conduit 102 connected to the pressurizing means 101 for supplying compressed air into the center of one side of the blowing head part is fastened, and the pressurizing means 101 is the blowing head part 30. Compressed air is supplied to the inside of the blowing head portion 30 through a conduit 102 connected to the supply hole 35 of the blowing head portion.

In the conventional method, the conduit is provided in the shape of the supply port 35 and the T shape. In this case, the efficiency is lowered because the delivery direction is bisected in delivering gas pressure in the direction in which the actual optical fiber unit is installed in the tube. Can be. In order to effectively overcome this problem, the conduit is formed in an inclined form in the installation progress direction of the optical fiber unit, so that the gas pressure generated by the pressurization means can be more effectively transmitted in the direction in which the installation proceeds, thereby maximizing the installation efficiency. It becomes possible.

The unit guide means is fastened so as to correspond to the inlet side of the unit passage 31 of the blowing head portion 30, and the optical fiber unit passing through the entry port 22 of the driving roller portion 20 to the unit passage 31 of the blowing head portion. Guide.

The unit guide means is composed of a multi- or preferably hexagonal nut-shaped tightening part 41, a screw coupling part 42 formed on one side of the tightening part 41, and guide holes 43 for guiding the optical fiber unit therein. It is composed of a unit guide nipple 40 formed.

The guide hole 43 formed in the unit guide nipple 40 is formed to be inclined inward so that the optical fiber unit can easily enter the unit passage 31 as shown in FIG. 3, and is formed of an elastic material to prevent external air leakage. And a plurality of guide holes 43 having different diameters (diameters) are formed, and a plurality of screw coupling parts 42 are formed on one surface of the blower head part 30 or the driving roller part 20. It is fastened to a plurality of screw holes 33 and provided with a plurality, which is used while being replaced according to various diameters of the optical fiber unit (U) to be installed.

In addition, as shown in FIG. 5, the unit guide nipple 40 has an inner circumferential surface 46 inclined inward and includes a sealing means 45 made of an elastic material. The guide hole of the unit guide nipple 40 is shown in FIG. 5. Of course, it can be implemented in the form of coupling to (43).

On the other hand, the tube fixing means is fastened to the exit side of the unit passage 31 of the blowing head portion 30, the rear of the blowing head portion 30 through the tube 80, in which the optical fiber unit passing through the unit passage 31 is installed. As a means for fixing to the connector, it is composed of a connector 51, a tube fixing nipple 61, and a nipple cap 71.

The connector 51 is fastened to the outlet side of the unit passage 31 of the blowing head portion 30, and consists of a screwing portion 53 on one side, a connecting portion 52 having a hole 51a on the inside.

The tube fixing nipple 61 has a multiply, preferably hexagonal, nut-shaped tightening portion 62 at its central portion, a first male thread portion 63 formed at the front side thereof, and a second male screw portion at the rear side thereof. 64 is formed and the tube 80 is inserted into the inner hole 61a, and then the first male screw portion 63 is fastened to the connecting portion 52 of the connector 51 so that the tip of the tube 80 is connected to the connector 51. It is inserted into the hole 51a of ().

In addition, the second male screw portion 64 is configured to have a predetermined elastic force in a form partially cut in the + character as shown in Figure 9 so as to be fluidly spaced outward, the inner peripheral surface in Figures 6 and 7 As shown, a plurality of anti-slip protrusions 65 are formed to contact the outer circumferential surface of the tube 80 to be inserted to prevent the tube 80 from being pushed.

The nipple cap 71 is fastened to the second male threaded portion 64 so that the second male threaded portion 64 opened outward is retracted inward so that the inserted tube 80 is firmly fixed in the tube fixing nipple 61. Be sure to

In addition, the packing 90 is fastened to the tip of the tube 80 inserted into the hole 51a of the connector 51 so that the compressed air supplied to the blowing head portion 30 does not leak out. As illustrated in FIG. 8, a protrusion 66 having a distal end inclined toward an inner diameter may be extended to the first male thread part 63 so that the packing 90 is in close contact with the tube 80.

On the other hand, during the installation of the optical fiber unit, the sensor 100 detects the progress state of the optical fiber unit and detects when the optical fiber unit is stopped by an obstacle or the like and stops the driving of the driving rollers 21 and 21 '. Control to stop.

When the optical fiber unit installation apparatus according to the present invention is installed at the optical fiber installation point, the flange portion 23 of the rear side of the driving roller portion 20 and the front flange portion 34 of the blowing head portion 30 are fastened with bolts and nuts. By connecting the drive roller portion and the blowing head portion, the entry path of the drive roller portion and the unit passage 31 of the blowing head portion are opposed in parallel.

Then, the unit guide nipple 40 having a guide hole 43 corresponding to the diameter of the optical fiber unit, that is, the diameter of the optical fiber unit whose diameter is changed by varying the number of cores from 1 to 12 cores, is provided in the blowing head portion or the driving roller portion. A corresponding one of the plurality of unit guide nipples fastened is selected and fastened to the fastening holes 32 and 32 'formed on the front surface of the blowing head portion.

The connector 51 is fastened to the rear surface of the blower head portion 30, and the first male screw portion 63 of the tube fixing nipple 61 is fastened to the connector 52 at the connector 51.

Then, after loosely fastening the nipple cap 71 to the second male threaded portion 64 of the tube fixing nipple 61, the tube 80 is fastened to the hole 51a of the connector 51, and the nipple cap 71. Is completely tightened to the second male screw portion 64 so that the second male screw portion 64 is in contact with the tube 80 so that the tube 80 is securely fixed to the rear of the blowing head portion 30.

At this time, the anti-slip projection 65 formed on the inner circumferential surface of the second male thread portion 64 is in contact with the outer circumferential surface of the tube 80 as shown in FIG. 6 to more effectively prevent the tube 80 from being pushed back do.

After the assembly is performed, the operation for laying the optical fiber unit is started. First, the optical fiber unit is input from the optical fiber unit supply unit 10 to the entrance port 22 of the driving roller unit 20.

When the optical fiber unit is supplied to the entry port 22 of the driving roller 20, the driving rollers 21 and 21 'are rotated with the optical fiber unit interposed therebetween, pushing the optical fiber unit toward the blowing head portion. The front end of the optical fiber unit passing through the entry port 22 enters the guide through-hole 43 of the unit guide nipple 40, and the inclined direction of the guide through-hole 43 even when the front end of the optical fiber unit is biased upward or downward. Guided along the surface can be easily inserted into the guide hole, the inserted optical fiber unit is inserted in close contact with the guide hole.

The optical fiber unit U inserted in the guide hole 43 opens the unit passage 31 of the blowing head portion 30 by the gas pressure by the compressed air supplied to the blowing head portion 30 by the pressurizing means 101. While passing quickly, the installation proceeds into the tube 80 fixed to the rear of the blowing head portion 30.

Compressed air supplied to the blowing head portion 30 is provided with an integrated enclosure in which the blowing head portion is blocked in all directions, and the optical fiber unit is inserted into the guide through-hole 43 of the unit guide nipple 40 to be in close contact with the tube 80. Since the packing 90 is provided at the front end of the c), the packing 90 is introduced into the inside of the tube 80 instead of flowing out of the blower head 30.

As described above, the optical fiber unit installation apparatus according to the present invention for installing the optical fiber unit has the following advantages.

First, the driving roller unit and the blower head unit are physically separated, and the blower head unit is provided as an integrated enclosure that is blocked in all directions so that the compressed air supplied to the blower head unit can be introduced into the tube without ever leaking to the outside. The laying force of the optical fiber unit is increased by the gas pressure.

That is, in the related art, since a driving roller is provided inside the blower head and the blower head must be provided in a separable type so that the blower head can be opened and closed in order to install the drive roller, a gap is generated by a boundary end where the upper and lower parts abut the compressed air supplied to the blower head. In the present invention, the blower head unit 30 is physically separated from the driving roller unit 20 and is provided as an integrated enclosure, so the compressed air supplied to the inside cannot be leaked to the outside. Have characteristics.

In addition, the guide hole 43 of the unit guide nipple 40 is inserted into the optical fiber unit is in close contact with the strong, the end portion of the tube 80 is fixed to the rear end of the packing 90 is provided where the gap can occur In addition, by improving the sealing function has the advantage of increasing the installation power of the optical fiber unit.

Second, since the unit guide nipple 40 having the guide hole 43 inclined inward is provided in front of the blowing head portion, the optical fiber unit inserted into the blowing head portion 30 can be easily carried out without leaving the unit passage of the blowing head portion. Can be inserted.

Accordingly, since the driving roller part and the blowing head part are separated, the entry port 22 and the unit passage 31 through which the optical fiber unit proceeds are separated by a certain distance, thereby effectively overcoming the problem that the smooth supply of the optical fiber unit may be somewhat difficult. The fiber optic unit can be guided to facilitate smooth laying.

Third, since a plurality of unit guide nipples 40 having guide holes 43 having different diameters are provided on one side of the blowing head portion 30 or the driving roller portion 20, the nipples for unit guides are made according to the diameter of the optical fiber unit. (40) can be replaced and used, and can be replaced immediately by removing from the blower head 30 or the driving roller part, thereby reducing the time required to replace the unit guide nipple, loss of the unit guide nipple, etc. It can effectively prevent the effect of saving the installation time as well.

Fourth, since the tube fixing means consisting of the connector 51, the tube fixing nipple 61, the nipple cap 71 is provided to fix the tube 80 fixed to the rear of the blowing head portion 30 very firmly Can be.

That is, in the past, when fixing the tube to the blowing head, it was simply a method of relying on the physical frictional force by simply inserting the tube into the hole, the present invention is inserted into the tube 80 after fastening the tube fixing means to the rear of the blowing head portion When the nipple cap 71 is fastened to the second male threaded portion 64 of the tube fixing nipple 61, the inner circumferential surface of the second male threaded portion 64 is completely in contact with the tube 80 so that the tube 80 is firmly fixed. There is an advantage that can be.

In addition, since a plurality of anti-slip protrusions 65 are formed on the inner circumferential surface of the second male thread portion 64 of the tube fixing nipple 61, the anti-slip protrusions 65 are formed when the nipple cap 71 is tightened. In contact with the gas pressure can be fixed more firmly without being easily pushed back, there is an advantage that can be fixed very firmly the tube (80).

Fifth, since the second male screw portion 64 formed on the tube fixing nipple 61 of the tube fixing means is formed in a cut shape in a + shape so as to be fluidly opened in and out, the tube 80 when the tube 80 is inserted. At the same time, the nipple cap 71 can be easily coupled and separated.

The following drawings, which are attached to this specification, illustrate exemplary embodiments of the present invention, and together with the detailed description of the present invention serve to further understand the technical spirit of the present invention, the present invention includes matters described in such drawings. It should not be construed as limited to.

1 is a schematic view showing the configuration of a conventional optical fiber unit installation apparatus;

Figure 2 is a schematic perspective view showing the appearance of the blowing head of the conventional optical fiber unit installation apparatus,

3 is a cross-sectional view showing the configuration of an optical fiber unit installation apparatus according to the present invention;

4 is a perspective view showing the configuration of an optical fiber unit installation apparatus according to the present invention;

5 is a sectional view of a nipple for a unit guide according to the present invention;

6 is a partially cutaway perspective view of a portion of the tube fixing nipple according to the present invention;

7 is a partially enlarged sectional view showing a part of the tube fixing means according to the present invention;

8 is a cross-sectional view of another side of the tube fixing means according to the invention;

9 is a side view showing a second male screw portion of the tube fixing nipple according to the present invention;

10 is a view showing an embodiment of the fixing means of the present invention.

<Description of main reference numerals in the drawings>

10: optical fiber unit supply part 20: drive roller part

21,21 ': driving roller 22: entrance

23: flange portion 30: blowing head portion

31: unit passage 32: fastening hole

33: screw hole 34: flange

40: unit guide nipple 43: guide hole

51: connector 61: tube fixing nipple

62: tightening part 63: first male thread part

64: second male thread 65: non-slip protrusion

71: nipple cap 80: tube

90 packing 100 sensor

101: pressurizing means

Claims (14)

In the optical fiber unit installation apparatus for installing the optical fiber unit by the gas pressure by the pressing means, A drive roller provided oppositely with the entrance port penetrated through the center and the entrance port interposed therebetween, wherein the optical drive unit supplied from the optical fiber unit supply part enters the entrance port, and the drive roller pushes the optical fiber unit entered to the entrance port to the rear side; A roller part; A blowing head portion penetrating at a center thereof to face the entry port and including a unit passage through which the optical fiber unit passes at a gas pressure by a pressing means; Unit guide means for fastening and detaching at the front center of the blower head portion so as to correspond to the inlet side of the unit passage, and guiding the optical fiber unit having passed through the entrance port to the unit passage; And And tube fixing means fixed to a rear side of the blower head unit to which the optical fiber unit which is fastened to the outlet side of the unit passage and inserted into the unit passage is inserted. The blower head unit is an optical fiber unit installation apparatus, characterized in that provided as an integrated enclosure. delete The method of claim 1, wherein the unit guide means, An optical fiber unit installation apparatus comprising a unit nut having a polygonal nut shape and a screw coupling part formed at one side of the tightening part, and a guide hole formed therein for guiding the optical fiber unit. The method of claim 3, wherein the guide hole, An optical fiber unit installation apparatus, characterized in that the inner peripheral surface is formed to be inclined inwardly and the diameter of the end is formed to have a diameter corresponding to the diameter of the optical fiber unit is inserted into the guide and made of an elastic material. According to claim 4, wherein the blowing head portion or the driving roller portion, At least one screw hole is formed in the side of the optical fiber unit installation apparatus. The nipple for the unit guide according to claim 5, It is provided with one or more fastened to the screw hole of the blowing head portion or the driving roller portion having a guide through diameter of the diameter corresponding to the one or more diameters so that the replacement can be used according to the diameter of the optical fiber unit is inserted into one or more diameters Optical fiber unit installation apparatus. The method of claim 3 or 6, wherein the tube fixing means, A connector configured to be connected to an outlet side of the unit passage of the blowing head portion and having a screwing portion on one side and a connecting portion having a hole in the inner side; A first nut is formed at the front side and a second thread is formed at the rear side, and the tube is inserted into the inner hole. A tube fixing nipple for inserting the tip of the tube into the hole of the connector; And And a nipple cap that is fastened to the second male threaded portion so that the tube is firmly fixed in the tube fixing nipple. The method of claim 7, wherein the second male thread portion, An optical fiber unit installation apparatus, characterized in that formed by being partially cut with a + ruled to be spaced outward. The method of claim 8, wherein the second male thread portion, And a plurality of anti-slip protrusions formed on an inner circumferential surface thereof so as to contact an outer circumferential surface of the tube into which the non-slip protrusions are inserted to prevent the tube from being pushed. The method of claim 7, wherein And a packing is provided between the hole of the connector and the outer circumference of the tube inserted therein. The method of claim 10, And a protrusion having an end portion inclined toward an inner diameter such that the packing is in close contact with the tube, and extending from the first male screw portion. The method of claim 1, wherein the unit passage, And a conduit through which gas is introduced by the pressurizing means is formed, and the conduit is inclined in a direction in which the optical fiber unit is installed. The method of claim 1, wherein the drive roller unit, The flange is formed on the back side, The blower head unit is an optical fiber unit installation apparatus, characterized in that the flange portion which is coupled to and separated from the flange of the drive roller portion to be coupled to and separated from the drive roller portion formed on the front. The method of claim 1, wherein the drive roller unit or the blowing head portion, The optical fiber unit installation apparatus, characterized in that the magnetic material is provided on the lower surface.

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