KR200302484Y1 - Optical cable connection apparatus - Google Patents

Abstract

According to the present invention, the cylindrical housing has a cylindrical shape in which the outer circumferential surface is cylindrical so that the bullet passes through, and the diameter thereof is expanded toward the opening side, and the planar shape is integrally formed by bending at a right angle from the opening side to the outside. It has a branch, the cover is joined to the flange portion of the cylindrical housing by a fixing bolt and nut to form a generally quadrangular shape to cover the opening of the housing, the support member extending vertically toward the outside is integrally formed An o-ring is installed between the housing and the cover to seal the internal space of the housing from the outside, and an optical fiber fixing plate is installed inside the cover to wind the lid of the optical fiber and to fix the connected optical fiber. Clamps the optical fiber by a plurality of clamp members, It is configured to fix and support the optical cable by the paper member and fix the housing and the cover to the steel tower by the mounting bracket.

Therefore, the present invention can firmly connect the optical fiber of the transmission and distribution processing ground wire installed on the steel tower, and can also connect the optical fiber of the transmission and distribution processing ground wire installed on the steel tower while maintaining waterproofness, Can be installed.

Description

Optical cable connection device {OPTICAL CABLE CONNECTION APPARATUS}

The present invention relates to an optical fiber connecting device, and in particular, it is possible to firmly connect the optical fiber of the transmission and distribution processing ground wire installed in the steel tower, and also to connect the optical fiber of the transmission and distribution processing ground wire installed in the steel tower while maintaining waterproofness. Rather, the present invention relates to an optical fiber connecting device that can be easily installed in a steel tower.

Background Art Conventionally, various types of optical fiber connection devices have been proposed and disclosed. Among the optical fiber connection devices of this kind, there is a dome type optical fiber closure disclosed in Korean Laid-Open Patent Publication No. 1998-703282.

In the dome-shaped optical fiber closure disclosed in the publication, as shown in Figs. 1 to 2, the closure 10 is composed of an outer housing and an inner frame, the housing having a first closed end and a second. A long domed main body 12 having an open end thereof, a tubular base 14 attached to the open end of the domed main body 12, and the main body 12 detachably fixed to the base 14 A latch wire 16 and a base plate or stress relief member 18 covered by the stretchable tube 20 are included. This housing structure is similar to 3M's reinsertable domed closure used for copper wire splices, with the exception of the stress relief member 18. In the figure, two cables 22, 24 are shown as entering the closure 10, but the number is variable. In the disclosed embodiment, the stress relief member 18 has six cable ports designated to receive cables of varying diameters, where one or more cables can be arranged in a single port when the diameter of the cable ports is small.

The domed body 12, the base 14 and the stress relaxation member 18 are preferably formed of a thermoplastic polymer durable material such as polypropylene that can be injection molded. The illustrated configuration is a ground closure for base splicing. The tube 20 is preferably formed of an elastomer and may be pre-inserted with both ends or one end turned outwards on the foldable core, i. After the cables are secured to the stress relief member 18, the base 14 is properly positioned relative to the member 18, and the tube 20 is placed around these two elements and the releasable PST core. The tube 20 is then folded around the base 14 and the strain relief member 18 to form an airtight and watertight seal along the interface of those elements. Ribs are provided along the outer surface of the base 14 for engaging the tube 20. Access to the interior of the closure 10 is then performed by removing the domed body 12 from the base 14 using the latch 16. The latch 16, which is preferably stainless steel, is pivotally attached to the base 14 at two pins 26, 28 formed on the base 14. The hairpin shaped portions of the latch 16 are caught in corresponding pins 28 formed in the body 12. The position of the hairpin shaped portions and the position of the pins 26 and 28 are selected such that the body 12 is forcibly pressed against the base 14 so that an airtight seal can be formed therebetween, such sealing being the base 14. The o-ring 30 is further improved by placing an o-ring 30 in an annular groove (not shown) formed on the outer surface near the top of the head. The sealing effect is improved as the diameter of the o-ring 30 matches the width of the groove 32.

The inner frame of the closure 10 may take a variety of forms, but one or more splice trays 94 each having a back plate or transition tray 92, a cover 96, and a plurality of optical fibers 102. It is advantageous to include one or more splice inserts 98 for accommodating the splice 100, which interconnects. The term splice generally refers to a part that permanently interconnects two transmission lines, as opposed to a connector, commonly referred to as a mechanism that can repeatedly attach, detach, and reattach if necessary.

By the way, the conventional dome-shaped optical fiber closure body configured as described above has a cylindrical shape and is rotated at the time of the core connection of the optical cable (optical fiber), so that the connection work of the optical cable is inconvenient, and there is a problem of poor waterproofness.

Accordingly, the present invention has been made to solve the various problems described above, and an object of the present invention is to provide an optical cable connecting device capable of firmly connecting optical fibers of a transmission / distribution processing branch line installed in a steel tower.

Another object of the present invention is to provide an optical cable connecting device capable of connecting optical fibers of a transmission / distribution processing branch line installed on a steel tower while maintaining waterproofness.

Still another object of the present invention is to provide an optical cable connecting device that can be easily installed in a steel tower.

Another object of the present invention is to provide an optical cable connection device that is safe in rain and wind and safe in temperature changes.

In order to achieve the above object, the present invention forms a tapered shape in which the outer circumferential surface is cylindrical and the diameter thereof is expanded toward the opening side so that the bullet passes through, and is bent at a right angle toward the outside from the opening side and integrally formed. Cylindrical housing having a four-sided flange portion, and detachably coupled to the flange portion of the cylindrical housing to form a generally quadrilateral shape to cover the opening of the housing, the cross section extending vertically toward the outside is a c-shape A support member is integrally formed between the cover, a tapered surface tapered along the opening of the housing, and an outer circumferential surface formed by protruding from the inner surface of the cover to seal the housing from the outside. -Detachably attached to the ring and the circular protrusion formed on the inner side of the cover An optical fiber fixing plate having a plurality of storage grooves for stopping and winding the female part of the optical fiber and holding and supporting the connected optical fiber, and a plurality of detachably fixed and clamping optical fibers fixed in the circular protrusions formed inside the cover. Two clamp members, a pair of fixed support members fixedly coupled to the support members of the cover to fix the optical cables, and mounting brackets fixed to the bolts to fix the fixed support members to fix the housing and the cover to the steel tower. It is characterized by having a.

1 is a perspective view schematically showing a conventional example,

FIG. 2 is an exploded perspective view showing an exploded view of FIG. 1;

3 is a perspective view schematically showing an optical cable connecting apparatus according to an embodiment of the present invention;

4 is an enlarged exploded perspective view showing an exploded view of FIG. 3;

5 is an enlarged perspective view of an optical cable connection fixing plate for connecting and fixing an optical cable in FIG. 4;

6 is an exploded perspective view of a clamp member fixed to a cover part to clamp an optical cable;

7 is a perspective view schematically showing an optical cable connecting apparatus according to a second embodiment of the present invention.

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

100: housing 101: fixing bolt

101a: Nut 102: Flange part

103: screw hole 120: cover

121: support member 122: circular protrusion

123: Bolt ball 130: O-ring

140: fixing plate 142 fixing bolt

143: storage groove 144: transparent cover

145: Velcro rod tape 150: Clamp member

151: clamp body 151a: protrusion pipe

151b: screw 151c: groove

152: first o-ring 153: elastic cap

153a: through hole 154: second o-ring

155: hexagon joint 155a: threaded portion

156: 3 o-ring 157: Teflon packing

157a: notch 158: hexagon bolt

158: screw portion 160: fixed support member

162: bolt 170: mounting bracket

171: Through hole 172: Square through hole

173: support lever 174: fixing bolt

174a: protrusion 175: nut

176: pressure plate 200: support bracket

202: through-hole

Hereinafter, an optical cable connecting apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a perspective view schematically showing an optical cable connecting apparatus according to an embodiment of the present invention, Figure 4 is an enlarged exploded perspective view showing an exploded exploded view of Figure 3, Figure 5 is to connect and secure the optical cable in Figure 4 6 is an exploded perspective view showing an optical cable connection fixing plate, and FIG. 6 is an exploded perspective view of a clamp member fixed to a lid part to clamp an optical cable.

3 and 6, the optical cable connecting apparatus according to the embodiment of the present invention has a tapered shape in which the outer circumferential surface is cylindrical and the diameter thereof is expanded toward the opening side so that the bullet can pass through, and toward the opening side. From the cylindrical housing 100 having a four-sided flange portion 102 formed integrally bent at a right angle from the outside to the screw hole 103 formed in the flange portion 102 of the cylindrical housing 100 Combined by a fixing bolt 101 and a nut (101a) to form a generally quadrangular shape to cover the opening of the housing 100, the support member 121 having a U-shaped cross section extending vertically toward the outside is integral The cover 120 is formed in a predetermined manner, the tapered surface (not shown) tapered along the opening of the housing 100 and the circular protrusion 122 protruding from the inner surface of the cover 120 It is installed between the main surface is fixed to the bolt hole 123 formed in the o-ring 130 and the circular protrusion 122 formed on the inside of the cover 120 to seal the interior space from the outside of the housing 100 The optical fiber fixing plate 140 formed with a plurality of storage grooves 143 which are fixedly supported by the bolt 142 to wind the female part of the optical fiber (not shown) and hold the connected optical fiber, and the cover 120. One side is fixed to a plurality of bolt holes 124 formed in the circular protrusion 122 formed inside of the plurality of clamp members 150 for clamping the optical fiber and the support member 121 of the cover 120 Coupling is fixed to the screwed bolt 162 fixed to the pair of fixed support member 160 for supporting the optical cable, and fixed to the bolt 162 for fixing the fixed support member 160 is fixed to the housing 100 and the cover Equipped with an installation bracket 170 for fixing the 120 to the steel tower Doing.

As shown in detail in FIG. 6, the clamp member 150 has an inlet side of the optical cable having a large diameter, and a protruding tube 151a having a small diameter at the discharge side of the optical cable is integrally formed, and the cover ( The clamp main body 151 having a threaded portion 151b formed on an outer circumferential surface of the protruding pipe 151a to be screwed into a plurality of bolt holes 124 formed in the circular protrusion 122 formed inside the 120 and the clamp main body. A first o-ring 152 inserted into the recess 151c formed in the 151 to seal the housing 100 and a protruding tube 151a of the clamp body 151 extending into the housing 100. ) And a cap 153 having a plurality of through holes 153a formed to guide a plurality of optical fiber cores to the optical fiber fixing plate 140, and disposed at the optical cable inlet side of the clamp body 151, The second o-ring 154 sealing the (100) and The screw part 155a is formed on the outer circumferential surface of the clamp main body 151 so as to be joined to the screw part (not shown) formed on the inner circumferential surface of the optical cable inlet side, and the hexagonal joint 155 having the nut part on the other inner circumferential surface thereof, The third o-ring 156 inserted into the optical cable inlet side of each joint 155 to seal the housing 100 and the outer circumferential surface of the optical cable introduced while pressing the third o-ring 156 are compressed to shrink. Flexible teflon packing 157 formed with a plurality of cutouts 157a in a circumferential direction, and a screw portion formed in the hexagonal joint 155 while pressing the teflon packing 157 toward the third o-ring 156. It consists of a hexagonal bolt 158 in which the screw part 158a was formed in the outer peripheral surface so that it may be screwed together.

The mounting bracket 170 is a through-hole 171 at the center in the longitudinal direction to be fixed to the bolt 162 fixed by the nut 164 to the through-hole 121a formed in the support member 121 of the cover 120. ) Is formed, a support lever 173 having a plurality of quadrilateral through holes 172 formed symmetrically to the left and right sides with respect to the through hole 171, and a quadruple through respectively formed in the support lever 173. It is composed of a pressing plate 176 is installed on the support lever 173 by a fixing bolt 174 and a nut 175 inserted into the hole 172 and fixed to the steel tower.

The fixing bolt 174 is formed in the rectangular through-hole 172 formed in the support lever 173 when engaging the nut 175, a rectangular protrusion 174a is formed below the head so as not to rotate. In addition, the pressing plate 176 is formed with a rectangular through-hole 176a through which the fixing bolt 174 is inserted.

The transparent cover 144 made of synthetic resin is fixed by the Velcro rod tape 145 on the front surface of the storage groove 143 storing the optical fiber length of the fixing plate 140.

In the above description, only one optical fiber fixing plate 140 is installed on the inner side of the cover 120, and described as an example, but a plurality of support brackets 200 are provided below the optical fiber fixing plate 140 of the present invention. Of course, a plurality of optical fiber fixing plate 140 may be installed in each of the through holes 202.

Next, the operation and effects of the optical cable connection device according to the embodiment of the present invention configured as described above will be described.

First, fixing the lower portion of the support (140a) installed on both sides of the optical fiber fixing plate 140 in the bolt hole 123 formed in the circular protrusion 122 of the cover 120 to the adjustment bolt 142, the fixing plate ( Cover the upper portion (or front) of the storage groove 143 for fixing the connection portion of the optical fiber of 140 with the transparent plate 144, and then push the Velcro rod tape 145 into the through hole 140b formed in the fixing plate 140 When the two ends of the Velcro rod tape 145 are inserted and combined on the transparent plate 144, the transparent plate 144 is fixed to the optical fiber fixing plate 140.

Next, the protruding pipe 151a of the optical cable clamp member 150 at the outside (lower in FIG. 4) of the cover 120 in the plurality of bolt holes 124 formed in the circular protrusion 122 of the cover 120. The screw portions 151b formed on the outer circumferential surface thereof are screwed together to fix the optical cable clamp member 150 to the cover 120.

Then, one side of the bolt 162 for coupling and fixing the optical cable fixing support member 160 is inserted into the through hole 121a of the support member 121 formed integrally with the cover 120, and the mounting bracket ( The mounting bracket 170 is fixed to the support member 121 of the cover 120 by tightening the nut 164 through the through hole 171 formed in the longitudinal center of the support lever 173 of the 170. On both ends of the support lever 173 of the mounting bracket 170, the pressing plate 176 is fixed by a fixing bolt 174 and a nut 175 to fix the optical cable connecting device of the present invention to a steel tower (not shown). It is fixedly installed.

As described above, the optical fiber fixing plate 140 is fixedly installed on the inner side of the lid 120, and the outer optical cable clamp member 150 of the lid 120 is installed and installed on the support member 121 of the lid 120. The o-ring 130 is disposed on the outer circumferential surface of the circular protrusion 122 protruding from the inner circumferential surface of the cover 120 on which the bracket 170 is installed, and the circular protrusion 122 of the cover 120 is formed, specifically, Insert the optical fiber fixing plate 140 into the hollow portion of the housing 100, the screw hole formed in the four-sided flange portion 102 formed bent toward the outside vertically from the opening of the cylindrical housing ( 103 and the fixing bolt 101 is pushed into the screw hole (120a) formed near the corner of the cover 120 and the nut (101a) is coupled to the screw portion of the fixing bolt 101, the cylindrical housing 100 And cover 120 are combined.

In this case, the inside and the outside of the housing 100 are sealed by an inclined surface formed to be inclined in the opening of the housing 100 and an o-ring 130 disposed on an outer circumferential surface of the circular protrusion 122 inside the cover of the cover 120. Therefore, moisture does not penetrate into the housing 100 from the outside.

In order to fix the optical cable connecting device of the present invention assembled in this way to a steel tower, a fixing bolt 174 and a nut 175 for fixing the pressing plate 176 to the support lever 173 of the mounting bracket 170 is appropriate. The gap between the support lever 173 and the pressure plate 176 is separated to loosen, and then the angle of the steel tower (not shown) is supported by the pressure plate 176 installed on the left side of the support lever 173 of the mounting bracket 170. While sandwiching between the lever 173 and pushing the fixing bolt 174 into the square through-hole 172 formed in the support lever 173 while tightening the nut 175, another angle of the steel tower mounting bracket 170 The pressure plate 176 installed on the right side of the support lever 173 and the support lever 173, and push the fixing bolt 174 into the rectangular through hole 172 formed in the support lever 173. When 175 is tightened, the protrusion 174a formed under the head of the fixing bolt 174 is abutted by the square through-hole 172, Fixing bolt 174 is fixed location, can be easily secured position the nut 175 to the fixing bolt 174. The

After fixing the optical cable connection device of the present invention in the steel tower as described above, the optical cable used as the processing ground wire is inserted into the recess 160a of the fixed support member 160, and the bolt 162 and the nut 162 are tightened. It is firmly positioned by the fixed support member 160.

Next, the hexagonal bolt 158, the Teflon packing 157, the third o-ring 156, the hexagonal joint of the optical cable clamp member 150 fixed to the bolt hole 124 of the cover 120 155 and the second o-ring 154 and the clamp body 151 are sequentially inserted into the outer peripheral surface of the optical cable, and then the o-ring 154 is pushed into the through hole formed in the clamp body 151, and the Screw the threaded portion 155a formed on the outer circumferential surface of the hexagonal joint 155 to the threaded portion formed on the inner circumferential surface of the clamp body 151, and push the third o-ring 156 into the hexagonal joint 155, and When the Teflon packing 157 is inserted into the hexagonal bolt 158 and the hexagonal bolt 158 is tightened to the hexagonal joint 155, the cutout portion 157a of the teflon packing 157 is directed toward the center. At the same time as it is contracted and sealed by the third o-ring 156 and the second o-ring 154, external water cannot penetrate into the housing 100 through the inside of the optical cable clamp member 150. In addition, the first o-ring 152 is formed in the groove 151c formed between the clamp main body 151 and the thread 151b formed on the outer circumferential surface of the protruding tube 151a integrally formed on the clamp main body 151. ) Is disposed so that water does not penetrate into the housing 100 through the clamp body 151 and the cover 120.

In addition, in the housing 100, a plurality of optical fiber cores (not shown) of the optical cable exiting from the protruding tube 151a of the clamp main body 151 are formed on the elastic cap 153 covered by the protruding tube 151a. Guides the optical fiber fixing plate 140 to the bracket of the optical fiber fixing plate 140 through the through hole 153a of the optical fiber fixing plate 140, and is connected to the optical fiber core for drawing. Position length is fixed to the storage groove (143).

7 is a perspective view schematically showing an optical cable connecting apparatus according to a second embodiment of the present invention. The difference between the optical cable connecting device according to the second embodiment of the present invention shown in FIG. 7 and the optical cable connecting device according to the embodiment of the present invention shown in FIGS. 3 to 6 is different from the four optical cable clamp members in one embodiment. Although 150 is attached to the outside of the cover 120, in the second embodiment, two optical cable clamp members 150 are attached to the outside of the cover 120, four bolt holes formed in the cover 120 The difference between the optical cable clamp member 150 and the other two bolt holes 124 which are not screwed is sealed by the hexagonal bolts 206 in 124.

Therefore, according to the optical cable connecting device of the present invention, it is possible to firmly connect the optical fibers of the transmission and distribution processing ground wires installed in the steel tower, and to connect the optical fibers of the transmission and distribution processing ground wires installed in the steel tower while maintaining waterproofness. In addition, the connection portion of the optical fiber can be easily installed in the steel tower, and is located in a space enclosed by the housing 100 and the cover 120, and the optical cable is clamped by the optical cable clamp member 150 and the fixed support member 160. While being firmly positioned and secured to the steel tower by the mounting bracket 170, it is safe to rain and wind and safe to temperature changes.

In the above description, although illustrated and described with reference to specific embodiments, the present invention is not limited to this, for example, by those of ordinary skill in the art without departing from the concept of the present invention Of course, the design can be changed in various ways.

As described above, according to the optical cable connecting device of the present invention, the cylindrical housing has a cylindrical shape in which the outer circumferential surface is cylindrical so that the bullet passes through, and the diameter is expanded toward the opening side, and is bent at a right angle from the opening side to the outside. And an integrally formed quadrangular flange portion, the cover is joined to the flange portion of the cylindrical housing by a fixing bolt and a nut to form a generally quadrangular shape to cover the opening of the housing, and extends vertically outward. The support member is integrally formed, and an o-ring is provided between the housing and the cover to seal the interior space from the outside, and the inside of the cover is wound around the optical fiber, and the connected optical fiber Optical fiber fixing plate is installed to support the The optical fiber of the transmission / distribution processing line installed in the steel tower is constructed by clamping the optical fiber by ash, fixing the optical cable by a pair of fixed support members, and fixing the housing and the cover to the steel tower by the mounting bracket. It can be connected firmly, and it can not only connect the optical fiber of the transmission / distribution processing ground wire installed on the steel tower while maintaining waterproofness, but also can be easily installed in the steel tower and connect the optical fiber in the space enclosed by the housing and the cover. It is located at the side, and the optical cable is firmly fixed by the optical cable clamp member and the fixing support member, and the optical cable is firmly fixed to the steel tower by the mounting bracket, so it is very safe for rain and wind and safe against temperature changes. have.

Claims (3)

The outer circumferential surface is cylindrical so that the bullet passes through, and the tapered shape is expanded in diameter toward the opening side, and the flange portion 102 integrally formed by bending at a right angle from the opening side toward the outside is integrally formed. The cylindrical housing 100 and a flange portion 102 of the cylindrical housing 100 are detachably coupled to form a generally quadrangular shape to cover the opening of the housing 100 and extend vertically outward. A cover 120 having an integrally formed cross-section of a U-shaped support member 121, a tapered surface tapered along an opening of the housing 100, and a circular protrusion formed by protruding from an inner surface of the cover 120. (122) O-ring 130 is installed between the outer circumferential surface to seal the interior space from the outside, and detachable in the circular protrusion 122 formed on the inside of the cover 120 The optical fiber fixing plate 140 formed with a plurality of storage grooves 143 for holding and supporting the optical fiber and holding the connected optical fiber at the same time, and the circular protrusion 122 formed inside the cover 120. A plurality of clamp members 150 detachably fixed and clamped to fix the optical fiber, and a pair of fixed support members 160 fixedly coupled to the support member 121 of the cover 120 to fix the optical cable; And an installation bracket 170 fixed to the bolt 162 for fixing the fixed support member 160 to fix the housing 100 and the cover 120 to the steel tower. Device. The method of claim 1, wherein the clamp member 150 is formed in the inlet side of the optical cable having a large diameter, the discharge side of the optical cable is integrally formed with a protruding tube (151a) made of a small diameter, the cover 120 The clamp main body 151 and the clamp main body 151 having a threaded portion 151 b formed on the outer circumferential surface of the protruding pipe 151 a so as to be screwed into and fixed to a plurality of bolt holes 124 formed in the circular protrusion 122 formed on the inner side thereof. A first o-ring 152 inserted into a recess 151c formed in the cuff) to seal the housing 100, and a protruding tube 151a of the clamp body 151 extending inwardly of the housing 100. The elastic cap 153 has a plurality of through-holes 153a formed to guide the plurality of optical fiber cores to the optical fiber fixing plate 140, and is disposed at the optical cable inlet side of the clamp main body 151 and the housing 100. A second o-ring (154) for sealing A threaded portion 155a is formed on the outer circumferential surface to be screwed into the threaded portion formed on the inner circumferential surface of the optical cable inlet side of the sieve 151, and a hexagonal joint 155 having a nut portion on the other inner circumferential surface, and the optical cable inlet side of the hexagonal joint 155 A plurality of cutouts in a circumferential direction to tighten the third o-ring 156 and the outer peripheral surface of the optical cable to be inserted while pressing the third o-ring 156 to press the third o-ring 156 to seal the housing 100. 157a is formed on the outer circumferential surface of the flexible teflon packing 157 and the teflon packing 157 to the thread formed on the hexagonal joint 155 while pressing the teflon packing 157 toward the third o-ring 156 side. Optical cable connection device, characterized in that consisting of the formed hexagonal bolts (158). According to claim 1, wherein the mounting bracket 170 in the longitudinal direction to be fixed to the bolt 162 is fixed to the through hole 121a formed in the support member 121 of the cover 120 by the nut 164 A through hole 171 is formed at a center thereof, and a support lever 173 having a plurality of quadrangular through holes 172 symmetrically formed at right and left sides of the through hole 171 and the support lever 173. It is characterized in that it is composed of a pressing plate 176 which is installed on the support lever 173 by the fixing bolt 174 and the nut 175 fitted in each of the rectangular through-hole 172 formed in the fixed to the steel tower Optical cable connector.