KR20070044529A - Airtight plug for cable protecting pipe - Google Patents

Abstract

The present invention relates to an improvement of a cap for sealing a cable protecting tube, and fastening and fixing the inner and outer fixing plates 300 and 400 to the inner and outer parts of the main body 200 made of a water-expandable resin, and the main body 200 and the inner and outer fixing plates 300. The through-hole configured in the 400) can be opened as needed to completely remove the sealing plug which has been inserted into the cable protection tube inlet by other needs such as cable repair work, and then the sealing stopper 100 provided by the present invention. It can be inserted simply to use, even if the main body 200 is inflated by the water during use, the inner and outer fixing plates 300, 400 located on the inner and outer sides do not expand in the inner and outer direction of the main body 200 It expands only in the rim direction so that a perfect leakage blocking effect can be expected.

Description

Cable protector sealing plug {AIRTIGHT PLUG FOR CABLE PROTECTING PIPE}

1: perspective view of the present invention

2 is an exploded perspective view of the present invention

3 is a use state diagram of the present invention

4 is a partial perspective view of the outer fixing plate used in the present invention

5 is a front configuration diagram of the outer side fixing plate used in the present invention

6 is a partial cross-sectional view of the outer fixing plate used in the present invention

7 is a partially open state of the through hole of the main body used in the present invention

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

(100)-sealing stopper (110)-axial bolt

(111) (121) (131)-Nuts (120)-Tightening Bolts

(130)-Secondary Tightening Bolt (200)-Main Body

(220)-Through Hole (221)-Incision

(230)-Central Contractor (231)-Football

(232)-Fastener (300)-Inner Fixing Plate

(310)-Internal fixation interval (311)-Semicircular recess

(312)-Insert Groove (313)-Inner Shaft

(314)-Joining Groove (315)-Inner Central Fastener

(316)-Inner fastening hole (330)-Inner rotating opening

(331)-Semicircular Concave (332)-Support

(333)-Joining Pieces (335)-Soccer

(340)-Inner through hole (400)-Outer retaining plate

(410)-outer fixed interval (411)-semicircular recess

(412)-Insert Groove (413)-Outer Shaft

(414)-Joining Groove (415)-Outer Central Fastener

(416)-External fastening (430)-External rotation

(431)-Semicircular Concave (432)-Support

(433)-Joining Pieces (435)-Athletes

(440)-Outer Through Hole (500)-Support Plate

(510)-Body

The present invention relates to an improvement of a cable protection tube sealing stopper, when a cable is installed in a cable protection tube connected between a manhole and a manhole, when a new sealing plug is to be installed after detaching the sealing plug already installed as necessary. In particular, even in the case of a newly installed plug, it is possible to completely block the leakage during use.

In general, communication cables buried underground install manholes at regular distances for smooth maintenance, maintenance, and management. A cable sheath made of synthetic resin is connected between the manhole and the manhole. do.

At this time, the inlet of the protection tube located in the manhole is fitted with a sealing plug to prevent water or other foreign matter from entering the manhole through the protection tube.

Therefore, products of various configurations are provided for the sealing plug installed at the entrance of the protective tube.

In the case of the sealing plug, the front and rear fixing plates are placed on both sides of the main body made of water-expandable rubber, and are positioned so as to be inserted at the entrance of the protective tube when the cable is first installed in the protective tube connected between the manhole after the manhole construction. The hole is drilled and the cable is fitted through the above configuration.

Therefore, even when the main body made of water-expandable rubber is inflated by water during use, there is a fixed plate in the front and rear directions so that it cannot expand, but only expands to the outer direction, that is, the inner diameter of the protective tube, so that the protective tube inlet is sealed.

In the case of the closure plug of the above configuration, the water-expandable rubber is expanded by water or moisture in the protective tube while the expansion plate is controlled by the fixed plate in the front and rear direction, and expands only in the outer direction, so that the perfection of the sealing can be expected. It was effective, but with the following disadvantages.

That is, when the sealing plug inserted in the inlet of the protective tube is removed as necessary, the necessary work is performed, and when the sealing plug is inserted in the inlet of the protective tube, it is impossible to use the sealing cap such as the configuration used for the technician.

In other words, during the initial cable installation work, one end of the cable should be inserted into the through hole drilled through the sealing plug. If the new sealing plug is to be inserted into the cable again, it cannot be inserted without cutting the cable. Therefore, the sealing plug of this configuration can be used only for the initial cable installation work and not for maintenance work. .

As a solution to this problem, a sealing stopper is formed of a water-expandable resin, but a through hole into which the cable is fitted is inserted into the closing stopper, and a cutout is formed at one side of the throughhole and the closure stopper is configured through the cutout. Sealing caps have been provided to allow the cable to fit in the through hole.

The sealing plug of the above-described configuration is necessary to separate the sealing plug already installed as necessary, and then perform the necessary work, and expand the cutout formed at one side of the through hole when the new sealing plug is inserted into the protective tube inlet to seal the protective tube inlet. The cable is inserted into the through hole, and the sealing plug is inserted at the inlet of the protective tube. In the above state, the sealing plug of the water-expandable resin is expanded by water to seal the inlet of the protective tube.

Therefore, the sealing plug of the above configuration has the advantage that can be conveniently used in the maintenance work of the pre-installed cable, but also had the following disadvantages.

In other words, since it is impossible to install a separate fixing plate on the inner and outer sides of the sealing stopper after inserting the sealing stopper with the cutout part formed at the inlet of the protective pipe, the sealing stopper is over-expanded by moisture and shifted in the longitudinal direction of the protective pipe based on the cutout. When expanded, there is a risk of leaks, so that there is a problem such that the purpose of the installation of the sealing plug can not be achieved.

The present invention is to solve the conventional problems in the cable repair work to remove the pre-installed sealing plug, when you want to install a new sealing plug to ensure that the sealing plug is conveniently coupled to the outer surface of the cable at the same time The inner and outer surfaces of the stopper are provided with means for preventing lateral expansion of the closing stopper.

In order to achieve the above object, the present invention constitutes a closure cap for sealing a cable protection tube, and constitutes a closure plug body made of water-expandable resin, and fixes the inner fixing plate and the outer fixing plate by placing the inner fixing plate and the outer fixing plate inside and outside the body. The support plate is formed between the outer fixing plate and the main body is formed.

At this time, a plurality of through holes are formed in the main body and the inner and outer fixing plates, and the through holes formed in the main body communicate with the outside through the cutouts formed at one side, and the through holes configured in the inner and outer fixing plates are opened so that the through holes are opened through the rotation opening and closing intervals. It was done.

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

The drawings shown in the embodiment of the present invention will be described based on the three through-holes configured in the closure cap.

1 and 2 are a perspective view and an exploded perspective view of the closure plug 100 to be provided in the present invention, the present invention consists of an inner fixing plate 300 and an outer fixing plate 400 on the inside and outside on the basis of the main body 200 The support plate 500 is configured between the main body 200 and the outer fixing plate 400, and the main body 200 and the inner and outer fixing plates 300 and 400 and the support plate 500 are formed of a plurality of shaft bolts. The through-holes 220, 320 and 420, which are integrally formed and formed in the main body 200 and the inner and outer fixing plates 300 and 400, are provided with means for communicating with the outside.

The configuration and coupling structure of the main body 200, the inner and outer fixing plates 300, 400, and the support plate 500 will be described.

First, the configuration of the main body 200 is as follows.

As shown in FIG. 1, the main body 200 is formed of a circular body having a predetermined thickness, and the material is made of a water-expandable resin material widely used in the sealing plug 100, and a plurality of through holes are provided at equal intervals in the main body 200. A hole 220 is formed, but the through hole 220 is in communication with the outside through the cutout 221.

A central fastening hole 230 is formed in the center of the main body 200, and a large and small shaft hole 231 and a fastening hole 232 are drilled between the through holes 220.

Inner and outer sides of the main body 200, the inner fixing plate 300 and the outer fixing plate 400 injection molded with synthetic resin is located, wherein the inner and outer fixing plates 300, 400 are the same configuration.

First, the configuration of the inner fixing plate 300 will be described.

The overall shape of the inner fixing plate 300 is composed of a circular body having a predetermined thickness, such as the main body 200, the inner fixing plate 300 is composed of the inner fixing interval 310 and the inner rotation opening and closing 330 and the inner An inner through hole 340 is formed between the inner fixing part 310 and the inner rotating opening / closing 330 by forming the semicircular recesses 311 and 331 between the fixing section 310 and the inner rotating opening / closing 330. It was made.

At this time, the inner rotation opening and closing 330 is connected to one side of the inner fixing section 310 is configured to be rotational opening and closing.

That is, the insertion groove 312 in which the inner shaft hole 313 is drilled is formed at one side of the semi-circular concave inlet portion 311 formed in the inner fixing section 310, and the coupling groove 314 is formed at the other side.

The inner rotation opening and closing interval 330 coupled to the semi-circular concave inlet portion 311 of the inner fixing interval 310 constitutes a support piece 332 with a shaft hole 335 on one side thereof, and the support piece 332 is inside The inner shaft hole 313 formed in the insertion groove 312 and the shaft hole 335 formed in the support piece 332 are made to be coupled to the insertion groove 312 of the fixing section 310, and then the fastening shaft bolt 120 The inner rotation opening and closing 330 is rotated in the semi-circular concave inlet portion 311 of the inner fixing section 310 so that the inner through hole 340 is opened and closed, the inner rotation opening and closing 330 An end portion of the coupling piece 333 protrudes, but the coupling piece 333 is fitted into the coupling groove 314 of the inner fixing section 310 to be coupled.

An inner central fastening hole 315 is formed in the center of the inner fixing section 310, and an inner fastening hole 316 is drilled on the outer side of the inner fixing section 310, that is, one side of the inner shaft hole 313.

The configuration of the outer side fixing plate 400 configured on the outside of the main body 200 is the same as that of the inner side fixing plate 300 described above, but will be described below once again.

The overall shape of the outer fixing plate 400 is composed of a circular body having a predetermined thickness, such as the main body 200 or the inner fixing plate 300, the outer fixing plate 400 also the outer fixing interval 410 and the outer rotation opening and closing 430 The inner fixing interval 410 and the inner rotation opening and closing 430 is formed in the semicircular concave inlet portion 411, 431 while the outer penetration between the outer fixing interval 410 and the outer rotation opening and closing 430 Allow the ball 440 to form.

At this time, the outer rotary opening and closing 430 is connected to one side of the outer fixed interval 410 is configured to enable the rotation opening and closing.

That is, the insertion groove 412 having the outer shaft hole 413 is formed at one side of the semi-circular concave inlet 411 formed in the outer fixing section 310, and the coupling groove 414 is configured at the other side.

The outer rotation opening and closing interval 430 coupled to the semi-circular concave portion 411 of the outer fixed interval 410 constitutes a support piece 432 with a shaft hole 435 on one side, and the support piece 432 is outside The outer shaft hole 413 formed in the insertion groove 412 and the shaft hole 335 formed in the support piece 332 are made to be coupled to the insertion groove 412 of the fixing section 310, and then the fastening shaft bolt 120 The inner rotation opening and closing interval 430 is rotated in the semi-circular concave inlet portion 411 of the outer fixing interval 410 so that the outer fixing hole 440 is opened and closed, and the outer rotation opening and closing interval 430 An end portion of the coupling piece 433 protrudes, but the coupling piece 433 is fitted into the coupling groove 414 of the outer fixing interval 410 to be coupled.

An outer central fastening hole 415 is formed at the center of the outer fixing part 410, and an outer fastening hole 416 is drilled at one side of the outer fixing part 410, that is, the outer shaft hole 413.

The support plate 500 is located between the main body 200 and the outer fixing plate 400, the support plate 500 is composed of an iron plate and the body 510 has a concave inlet 511 at equal intervals, the outer end There are a plurality of engaging pieces 512.

A through hole 513 is drilled in the center of the body 510 of the support plate 500, and a large and small through hole 514 and 515 is drilled outward.

Therefore, the inner fixing plate 300 is positioned on the inner surface relative to the main body 200, and the support plate 500 and the outer fixing plate 400 are positioned outside, so that the through hole 220 drilled in the main body 200 and The inner and outer through holes 340 and 440 drilled in the inner and outer fixing plates 300 and 400 are matched, and the center fastening hole 230 and the inner and outer fixing plates 300 and 400 of the main body 200 are matched. The outer central fastening holes 315 and 415 coincide with each other, and the inner and outer shaft holes 313 and 413 of the shaft hole 231 and the fastening hole 232 of the main body 200 and the inner and outer fixing plates 300 and 400 and The inner and outer fastening holes 316 and 416 are coincident with each other.

At this time, the fixing plate 500 is the concave inlet 511 configured in the body 510 is located in the through-hole 220 of the main body 200, the fastening hole 230, the small through hole 515 and the large of the fixing plate 500 The through hole 514 is coincided with the central fastening hole 230, the shaft hole 231, and the fastening hole 232 configured in the main body 200.

In the above state, the shaft bolt 110 has an inner central fastening hole 315 of the inner fixing plate 300 and a central fastening hole 230 of the main body 200, a fastening hole 513 of the support plate 500, and an outer fixing plate ( Fasten the outer center fastening hole 415 of the 400 in turn and then fasten with the nut 111 to fasten the inner fixing plate 300 and the support plate 500 and the outer fixing plate 400 side by side to the inner and outer parts of the main body 200. To be.

At the same time, the inner shaft hole 313 of the inner fixing plate 300 by inserting the fastening shaft bolt 120, the shaft hole 231 of the main body 200, the small through hole 515 of the support plate 500 and the outer shaft hole of the outer fixing plate 400 The 413 is sequentially penetrated, and then fastened to the nut 121.

In addition, the inner fastening hole 316 of the inner fixing plate 300 by inserting the auxiliary shaft bolt 130 of the fastening hole 232 of the main body 200 and the large through hole 514 of the support plate 500 and the outer fixing plate 400 The outer fastening hole 416 is sequentially penetrated and then fastened and fastened by a nut 131, thereby completing the configuration of the sealing stopper 100 to be provided in the present invention.

Reference numeral 600 is a manhole wall, 610 is a cable sheath, 620 is a cable.

In the use of the present invention configured as described above, a cable protection tube 610 is installed between the manhole and the manhole, the cable 620 is fitted in the cable protection tube 610, and the cable is inserted into the inlet at the entrance part as necessary. 620 needs to be repaired or the sealing plug is removed from the cable protection tube 610, and after the maintenance work is completed, the new sealing plug is used because the separated sealing plug cannot be reused. The closure plug 100 to be provided by the present invention may be conveniently used at this time.

That is, in the prior art, when the cable 620 or other necessary maintenance work is to be combined by inserting a sealing plug into the inlet of the cable protection tube 610, it is sealed using only a main body made of water-expandable resin without inner and outer fixing plates or support plates. Since it has been used as a stopper, various problems such as leakage has been caused, but the sealing stopper 100 to be provided in the present invention can solve this problem.

The use of the sealing stopper 100 to be provided in the present invention is as follows.

That is, as shown in FIG. 1, a cable protection tube 610 in which a cable 620 is fitted with a sealing plug 100 composed of a main body 200 made of a water-expandable resin, an inner and outer fixing plate 300, 400, and a support plate 500. Place the inlet and then rotate the inner and outer rotary opening and closing 330, 430 configured in the inner and outer fixing plates 300, 400 to open the inner and outer through holes 340, 440, and at the same time the main body 200 Holding the cutout 221 configured in one side of the through-hole 220 and rotating to one side, the through-hole 220 of the main body 200 is completely opened.

In the above state, the cable 620 is fitted into the inner and outer through holes 340 and 440 and the through hole 220 through the openings of the inner and outer fixing plates 300 and 400 and the main body 200, and the through holes. When the cable is fully inserted in the body 200, holding the cutout 221 of the main body 200 to release the part rotated to one side by the self-elastic force to the body 200 is wrapped around the outer surface of the cable 620, so eventually the cable 620 Is located in the through hole 220 of the main body 200.

At the same time, by rotating the inner and outer rotation opening and closing 330, 430 of the inner and outer fixing plates 300, 400 reversely to seal the inner and outer through holes 340 and 440, the cable 620 is simply inner and outer Inner and outer through-holes 340 and 440 of the fixing plate 300, 400 is located, wherein the engaging pieces 333, 433 protruded at the end of the inner and outer rotation opening and closing 330, 430 is the inner Inner and outer rotation opening and closing 330 of the inner and outer fixing plate 300, 400 even if the main body 200 is expanded by the water during use because it is coupled to the coupling grooves 314, 414 of the outer fixing section 310, 410 ) 430 is firmly coupled on the inner and outer fixed intervals 310 and 410 without being separated.

When the coupling of the cable 620 in each through hole is completed in the same manner as described above, the sealing plug 100 is pushed into the cable protection tube 610 inlet, and the sealing plug 100 is connected to the cable protection tube ( 610 is located at the inlet.

At this time, the outer engaging piece 512 of the support plate 500 located between the main body 200 and the outer fixing plate 400 is slightly bent in the outward direction and is inserted into the inner surface of the cable protection tube 610 so that it is strongly using external force. The sealing plug 100 is not separated from the cable protection tube 610 unless it is pulled out.

As described above, when water is buried in the main body 200 in a state where the sealing plug 100 is located at the inlet of the cable protection tube 610, the water-expandable resin is expanded.

In this case, the inner and outer fixing plates 300 and 400 are fixedly installed on the inner and outer sides of the main body 200 so that the inner and outer fixing plates 300 and 400 do not expand in the inner and outer directions and expand only in the direction of the outer circumferential surface of the circle. 610 the inlet is completely sealed, and thus it is possible to prevent leakage through the cable protection tube 610.

In constructing the sealing stopper 100 of the present invention, even if the main body 200 is expanded, the inner and outer fixing plates 300 and 400 are firmly supported by the inner and outer parts of the main body 200 in the main body 200. Since the inner and outer fixing plates 300 and 400 fixed to the outer side support them with a total of seven shaft bolts of one shaft bolt 110, three fastening shaft bolts 120, and the auxiliary shaft bolt 120, respectively. As the main body 200 expands, there is no phenomenon that the inner and outer fixing plates 300 and 400 are pushed in the inner and outer directions.

At this time, the fastening shaft bolt 120 is an essential configuration because it functions to support the inner and outer rotation opening and closing intervals (330, 430) from the inner and outer fixing sections (310, 410) of the inner and outer fixing plates (300) and (400). The auxiliary shaft bolt 130 may be omitted in some cases to reduce the cost and manpower according to the assembly.

As described above, the present invention constitutes a cable protection tube sealing plug, and fixes the inside and the outside fixing plate to the inside and the outside of the main body, and configures the through-holes formed in the main body and the inside and outside fixing plate so as to be opened as needed. By other needs, the sealing plug inserted in the cable protection tube inlet is separated and repaired, and after the repairing, the inlet can be simply sealed using the sealing plug to be provided by the present invention. Even when the main body expands due to water, it does not expand inward and outward by the inner and outer fixing plates located in the inner and outer parts, and expands only in the rim direction, that is, the outer direction of the main body, so that perfect leakage blocking can be expected. It works.

Claims (3)

In forming a cable protection tube closure cap, the main body 200 is made of water-expandable resin, but the cutout part 221 is formed at one side of the through hole 220 formed in the main body 200, and the inner and outer parts of the main body 200 are formed. Inner and outer through-hole 340, 440 is formed in the inner and outer fixing plate 300, 400 is positioned and then fastened with a shaft bolt to fix them integrally, but the inner and outer fixing plate 300, 400 is The inner and outer fixed sections 310, 410 and the inner and outer rotation opening and closing 330, 430 by separating configuration, the inner and outer rotation opening and closing 330, 430 of the inner and outer fixed intervals 310, 410 Cable protection tube sealing stopper, characterized in that the inner and outer through-holes (340, 440) to be opened and closed while being rotated on one side. The semicircular recesses 311 and 411 are formed in the inner and outer fixing sections 310 and 410 constituting the inner and outer fixing plates 300 and 400, and the semicircular recesses 311 ( 411) one side of the inner and outer shaft holes 316, 416 constitutes the insertion groove 312, 412, the insertion grooves 312, 412 in the inner and outer rotation opening and closing 330, 430 on one side The supporting pieces 332 and 432 are fitted, and then fastened with the fastening shaft bolts 120 so that the inner and outer rotation opening and closing sections 330 and 430 are rotatable from the inner and outer fixing sections 310 and 410. In addition, the inner and outer rotation opening and closing intervals 330, 430 by configuring the semi-circular indents 331, 431 to be combined with the semi-circular indents 311, 411 of the inner and outer fixing intervals 310, 410 The outer through holes 340 and 440 are formed, and the coupling grooves 314 and 414 are formed at the other side of the semicircular recesses 311 and 411 of the inner and outer fixing sections 310 and 410, respectively. The coupling pieces 333 and 433 of the rotary opening and closing 330, 430 is fitted to be coupled Cable protection pipe sealing stopper. The method of claim 1, wherein the support plate 500 is formed between the main body 200 and the outer fixing plate 400, the concave inlet 511 and the engaging piece 512 is inserted into a coupling configuration, characterized in that the closure of the cable protection tube. .

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