JP3095188U - Cable conduit fixing device - Google Patents

Abstract

(57) [Problem] To provide a cable conduit fixing device that does not require a space for maintaining linearity of each cable conduit, and has a small and simple configuration. SOLUTION: A fixing plate 3 having an opening 3A for penetrating and supporting a cable conduit P inserted and arranged in a waterproof tube 2 at a tube opening side of the waterproof tube 2 sealed by a waterproof device, and a fixing plate. The cable conduit P drawn out from the opening 3A of the plate 3 is locked to the opening edge of the opening 3A.
Ring 4 that is fastened and fixed with a tightening band 5
And The fixing ring 4 is formed in a half-split structure in which an annular body is divided into two symmetrical ring-shaped fixing ring pieces 4A and 4B in a bilaterally symmetrical manner. A spiral band 6 is provided on the outer periphery of both fixed ring pieces 4A and 4B so as to fasten and fix the two fixed ring pieces 4A and 4B to the cable conduit P. Is provided.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  INDUSTRIAL APPLICABILITY The present invention can be applied to various building structures such as buildings, buildings, etc. When wiring cables of the above, it is necessary to ensure waterproof treatment at the lead-in introduction site, Cable conduit seals used in cable conduit waterproofing devices made easy to obtain It relates to a fixed device.

[0002]

[Prior art]

  Conventionally, communication cables, etc. have been drawn in from various types of building structures from caverns, manholes, etc. If you do this, since the caverns, human pits, etc. are installed underground, It is waterproof and drained against the others. Prevents intrusion into building structures As described above, since it is necessary to ensure a watertight seal at the lead-in introduction part, Conventionally, various waterproofing means have been applied.

[0003]   As this waterproofing means, for example, an insertion type waterproof device has been proposed. This is an example For example, a rigid tightening plate made of iron plate at the front and rear that is inserted and arranged in the pipeline, and tightening at the front and rear Cylindrical packing material made of elastic material such as rubber interposed between the boards and tightening these After inserting cables into the board and packing material, tighten the front and rear tightening boards together. And a screw member. Insert specified cables individually into the packing material A proper number of insertion holes along the direction of the cylinder for opening one of the insertion holes to the outside. An open notch that communicates with this open notch through an insertion hole, either indirectly or directly. A connecting notch is formed to be connected to another insertion hole.

[0004]   Then, at least three cable conduits are inserted and arranged in the waterproof pipe, and the housing structure is Fixing device provided on the mouth side of the waterproof pipe sealed by the waterproof device Each cable conduit is supported by.

[0005]

[Problems to be solved by the device]   However, in such a conventionally proposed insertion type waterproof device, the mouth side of the waterproof pipe is When supporting each cable conduit with the fixing device at Space is needed to maintain the sex. Moreover, it is larger than the diameter of the cable conduit. Not only does it require a rigid and expensive fixing device, but it has traditionally been internally space-consuming. There was a problem that there was not enough room and the restrictions were severe.

[0006]   Therefore, the present invention was devised in consideration of various existing conditions such as the above, and is waterproof. Maintaining the linearity of each cable conduit when supporting each cable conduit at the mouth side of the pipe Easily connect each cable conduit at the mouth side of the waterproof pipe while eliminating the space for Supporting and fixing, and fixing cable conduit with a compact and simple structure The purpose is to provide a device.

[0007]

[Means for Solving the Problems]

  In order to achieve the above-mentioned subject, in the present invention, it is inserted and arranged in the waterproof pipe 2. Insert the cable conduit P at the tube mouth side of the waterproof tube 2 that is sealed by the waterproof device. The fixed plate 3 having an opening 3A for supporting the through hole and the opening 3A of the fixed plate 3 are pulled. A cable for locking the released cable conduit P at the opening edge of the opening 3A. With a fixing ring 4 for fastening and fixing to the conduit P via a fastening band 5 Is.   The fixing ring 4 is composed of two circular arc-shaped fixing ring pieces 4A and 4B which are symmetrical with respect to each other. It is formed in a half-divided structure so that both fixing ring pieces 4A and 4B are formed. The inner circumference of the spiral that can mesh along the spiral groove formed on the outer circumference of the cable conduit P Has two ridges 6 and has two fixing ring pieces on the outer circumference of both fixing ring pieces 4A, 4B. A ring on which a tightening band 5 can be wound so that 4A and 4B are fixed to the cable conduit P by tightening. The groove 7 can be provided.

[0008]   In the cable conduit fixing device according to the present invention configured as described above, the fixing plate 3 is the mouth side of the waterproof pipe 2 which is sealed from the opening 3A by a waterproof device. The cable conduit P is pulled out and arranged at the same time, and the fixing ring of the tightening band 5 structure is also provided. 4 is fixed to the cable conduit P by fastening and fixing it to the opening 3A of the fixing plate 3. The cable conduit P pulled out from this is locked to the opening edge of the opening 3A.

[0009]   At this time, the fixing ring 4 includes two fixing ring pieces 4A and 4B forming itself. The inner circumference of each of the fixed ring pieces 4A and 4B when sandwiched between the cable conduits P The ridge portion 6 formed on the ridge is meshed with the spiral groove on the outer circumference of the cable conduit P. It Then, it is wound around the annular grooves 7 formed on the outer circumferences of both fixing rings 4, respectively. By putting the tightening band 5 in the tightened state, the cable conduit P is connected to the mouth of the waterproof pipe 2. Lock on the side. Moreover, the outer peripheral side of the cable conduit P inserted into the mouth of the waterproof pipe 2. Gap between the surface and the inner circumference of the opening 3A of the fixing plate 3 attached to the mouth side of the waterproof pipe 2. A water blocking effect is exhibited by closing the space with the fixing ring 4.

[0010]

[Embodiment of device]

  An embodiment of the present invention will be described below with reference to the drawings. No. 1 requires a waterproof treatment at the lead-in lead-in part when pulling in the cables C. Cables used for cable conduit waterproofing devices that are reliable and easy to obtain It is a conduit fixing device. This cable conduit fixing device 1 is, as shown in FIG. Both ends, which are buried in and are opened like a trumpet, are, for example, a handhole man. Insert the wall W of the box into the interior of the concrete block such as a hall Inside a certain waterproof pipe 2, for example, three flexible pipes such as a metal pipe called an EP pipe are provided. When the cable conduits P are inserted and arranged, the cable conduits P are supported and fixed. That is, it is sealed by being covered with, for example, a waterproof device having a casing structure described later. Outside the cable conduits P in order to insert and support the waterproof pipes 2 at the mouth side. For example, a thin-walled disc-shaped solid having three openings 3A having an opening diameter substantially the same as the diameter. A fixed plate 3 is provided. Then, the cable pulled out from each opening 3A of the fixed plate 3 Each of the conduits P is engaged with the opening edge of the opening 3A and drawn into the ground. Via a tightening band 5 to the cable conduit P itself in order to prevent A fixing ring 4 having a split structure that can be fastened and fixed is provided.

[0011]   As shown in FIG. 1, the fixing ring 4 has two circular arc-shaped fixing levers that are symmetrical with respect to the ring body. It is formed in a half-divided structure so as to become the ring pieces 4A and 4B. And Spiral protrusions 6 are formed on the inner circumferences of both fixing ring pieces 4A and 4B. An interlocking structure is used for the thin stainless steel plate to form a link structure with an S-shaped cross section. By using an EP tube or the like formed by adding flexibility and stretchability The protruding portion 6 can be meshed with the spiral groove formed on the outer periphery of the cable conduit P. It is designed to be. Further, two fixing rings are provided on the outer circumference of both fixing ring pieces 4A and 4B. Tightening band 5 can be wound so that the fastening pieces 4A, 4B can be fastened and fixed to the cable conduit P. It is equipped with an effective annular groove 7.

[0012]   The tightening band 5 is made of a flexible band member made of, for example, thin stainless steel. Are formed in parallel with each other along the longitudinal direction of the band at equal intervals. It is provided with a plurality of locking slits 5A that are bored. And of the band One end can be engaged with any of the slit portions 5A by tightening the screw portion 5C. A band end insertion portion 5B is provided. When using the tightening band 5, After fixing the fixed ring pieces 4A and 4B around the cable conduit P, both fixing rings The tightening band 5 is wound around the annular groove 7 of the pieces 4A and 4B, and the band end side is rewound. Band end portion by inserting the screw into the band end insertion portion 5B and then tightening the screw portion 5C. The spiral strip portion of the screw portion 5C is engaged with any of the slit portions 5A on the side. Both fixing ring pieces 4A and 4B are fastened and fixed together.

[0013]   In addition, as a concrete waterproofing device having a casing structure, a lid portion is provided on one end opening side of the tubular body portion 8A. 8B is welded and fixed, and a donut-shaped flange portion 8C is welded and fixed to the opening side of the other end. With a hat-shaped casing 8 on the flat side of the flange portion 8C along the circumference at equal intervals. Has a plurality of bolt insertion holes formed in the It has three openings 9 which are bored for inserting the respective pipes P. This opening Welded a cylindrical sleeve 10 with a slightly trumpet-shaped opening at each mouth 9. And the like, which are connected to each other by means such as Q causes the cable conduit P to go out via the bushing 14 fitted on the mouth side. Fix a plurality of cables C that are installed, and make sure that the pipe mouth part is stopped. There is something that can be done.

[0014]   On the other hand, on the flat side of the trumpet-shaped waterproof flange portion 2A formed on the tube mouth side of the waterproof tube 2. A plurality of bolt insertion holes formed in the flange portion 8C of the waterproof device so as to face the plurality of bolt insertion holes. A bolt insertion hole is bored, and the waterproof flange portion 2A of the waterproof pipe 2 is assembled at the time of assembly. Between the rubber and the flange portion 8C of the waterproof device, a rubber donut-shaped packing member 11 The fixing plates 3 sandwiched by the The bolt 12 is inserted and the nut 13 is fastened and fixed from the opposite side.

[0015]   In addition, as a specific configuration of the insertion-type waterproof device Q, before being inserted and arranged in the pipeline. Between the divided outer peripheral tightening board 22 made of iron plate at the rear part and the divided outer peripheral tightening boards 22 at the front and rear parts. A cylindrical seal block body 21 made of an elastic material such as rubber and the like After inserting the cables C into the split outer peripheral clamping board 22 and the seal block body 21, the front and rear parts The divided outer peripheral tightening board 22 and the tightening bolt 23 for fixing and tightening each other. This sea An appropriate number of insertions for inserting predetermined cables C into the block body 21. Open hole that opens the hole along the column direction and connects one of the insertion holes to the outside. A recess 24 is formed.

[0016]   Specifically, the cylindrical seal block body 21 includes a power cable and a metal cable. Cable, fiber optic cable, etc. As shown in FIG. 3, for example, when three through holes of the same diameter are viewed from the front, three clover-shaped Open along the direction of the cylinder so that it has the shape of a leaf, and these through-holes are seal blocks. A communication insertion hole 25 formed by communication is formed at the open portion at the center of the casing 21. . Then, one of the communication insertion holes 25 is removed from the seal block 21. The open notch 24 that communicates with the section is formed, and the open notch 24 is forced to the left and right. To the insertion positions of the cables C in the through holes of the communication insertion hole 25. I am able to decide. Of course, the inner diameter of each through hole of the communication insertion hole 25 is different. They are different, or the arrangement of through holes is not located on the same circumference, etc. Can be variously changed.

[0017]   At the opening end of the communication insertion hole 25, each cable inserted in the communication insertion hole 25 With the circumference of C in contact with each other along the longitudinal direction, the outer circumference of each cable C is A cylindrical outer jacket that sticks tightly is projected, and this outer jacket is made of metal, which will be described later. It is also intended to improve the adhesiveness with each of the divided outer peripheral clamping boards 22.

[0018]   The seal block body 21 itself is compressed and reduced to the main body portion of the seal block body 21. The plurality of bolt insertion holes for inserting the compression root bolts 23 having a square root structure are cylindrical. It is drilled along the direction. In addition, in the circumferential direction of the seal block body 21, A plurality of pieces are divided along the proper number, for example, three pieces in front and behind in the figure. The divided outer peripheral tightening board 22 made of metal is arranged so as to cover the front and rear surfaces of the seal block body 21. Has been. These divided outer peripheral tightening boards 22 are made of a rigid material such as iron. It is made of metal material such as SS400, and the The lock block body 21 is firmly fixed to the front and rear surface portions.

[0019]   As shown in FIG. 3, the divided outer peripheral clamping plate 22 is basically fan-shaped when viewed from the front. The divided radial line edge has a front surface corresponding to each through hole of the communication insertion hole 25. A fitting insertion portion having a substantially semicircular shape as viewed from the above is cut out. And at the bolt insertion hole position Correspondingly, an engaging hole formed in a square hole shape along the radial direction of the divided outer peripheral tightening board 22 itself is formed. It has been opened. The divided outer peripheral tightening board 22 includes front and rear surfaces of the seal block body 21 itself. Which is fixed to the side, the tightening bolt 23 to be fixed, the nut 26 through the washer The entire sealing block body 21 is compressed in the cylindrical direction by screwing with Accordingly, the seal block body 21 expands in the radial direction, and the inner peripheral side surface of the sleeve 10 The outer peripheral surfaces of the cables C are watertightly pressed against each other.

[0020]   The seal block body 21 is made of chloroprene having a hardness of about 45 degrees. In some cases, the outer peripheral side surface of the seal block body 21 is joined to the inner peripheral side surface of the cable conduit P. Since there is a possibility that a gap will be created in the The sealing material made of synthetic resin material is injected into this gap and it is sealed tightly. It needs to be plugged.

[0021]   Next, an example of use of the embodiment configured as described above will be described. , Communication cables in various building structures (not shown) from, for example, cave parts, human pits, etc. In the case of lead-in wiring, etc., first of all, it is buried in the ground and the pipe mouth side at both ends is Insert the box wall W into the interior of concrete blocks such as halls and manholes At least three cables such as an EP pipe are provided inside the waterproof pipe 2 which is made to face. And the cable conduits P are covered with a waterproof device having a housing structure. To seal in a watertight state.

[0022]   That is, between the waterproof flange portion 2A of the waterproof pipe 2 and the flange portion 8C of the waterproof device. The fixing plate 3 sandwiched by the rubber donut-shaped packing member 11 is interposed and distributed. The cable conduit P is pulled out a little longer from the opening 3A of the fixed plate 3 . At this time, the two fixing ring pieces 4A and 4B of the fixing ring 4 are placed around the cable conduit P. Then, the tightening band 5 is wound around the annular grooves 7 of both the fixed ring pieces 4A and 4B. The end part of the band that has been rewound and rewound, and insert it into the band end part 5B By tightening the portion 5C, the threaded portion 5C is attached to one of the slit portions 5A on the band end side. Will be engaged, and both fixing ring pieces 4A and 4B will be fastened and fixed to each other. like this By doing so, each of the cable conduits P drawn out from each opening 3A of the fixed plate 3 It can be locked to the opening edge of the opening 3A and prevented from returning to the underground side and being pulled in. State.

[0023]   Then, at the same time as covering the tube opening of the waterproof tube 2 with a waterproof device, After the conduit P is made to go out, the waterproof flange portion 2A of the waterproof pipe 2 and the flange of the waterproof device Insert the bolts 12 into the respective bolt insertion holes of the portion 8C and insert the nuts 1 from the opposite side. Fasten and fix with 3. A cable is inserted into the sleeve 10 via an insertion-type waterproof device Q. Fix the type C and make sure that the pipe mouth is stopped. That is, the seal block The divided outer peripheral tightening board 22 is disposed so as to abut on the back surface of the hook body 21. Inserting and engaging the compression bolt 23 of the square root structure from the engaging hole of, and inserting the bolt insertion hole. And the tip screw portion is allowed to go out to the front surface of the seal block body 21. So open cut A predetermined case is placed in the communication insertion hole 25 of the seal block body 21 opened by the portion 24. Insert the cable C and slide it so that the back side of the seal block 21 is located at the back. It is pushed and placed in the tube 10. At this time, the cables C are twisted and entangled. Even if the twisted state is not returned, the seal block body 21 is inserted into the communication insertion hole 25. It suffices to insert each cable C, and the seal block body 21 itself Since it is pushed in about half at the tube mouth of the sleeve 10, the subsequent work is easy. You can get sex.

[0024]   Next, the other divided outer peripheral tightening board 22 is brought into contact with the front surface of the seal block body 21. The cables C are placed in the fitting insertion portion, and the compression bolt 2 is inserted in the communication insertion hole 25. Align the screw parts of No. 3 with each other, and insert the respective engaging holes into the screws of the tightening bolt 23. Align with each section. Then, the tightening bolt 23 is fitted with a nut through a washer. After loosely screwing in 26, re-three up to the divided outer peripheral clamping board 22 on the front side. Insert it into the sleeve 10 and push it in until it reaches the installation position.

[0025]   At least from the open notch 24 formed in the seal block body 21 as described above. Each cable is placed in a communication insertion hole 25 formed by three through holes communicating with each other through the open portion. The seals C are inserted and arranged on the front and rear surfaces of the seal block body 21. Between the plurality of divided outer peripheral tightening boards 22 which are fastening members, such as a tightening bolt 23 and a nut 2. The seal block body 21 is clamped and fixed in the sleeve 10 by screwing with 6. It should be inserted and arranged. At this time, the entire seal block body 21 is in the cylindrical direction. When the seal block body 21 is compressed, the seal block body 21 expands in the radial direction, and the sleeve 1 0 inner peripheral side surface and cables C outer peripheral surface are pressure-tightly fixed in a watertight manner (Fig. 4). reference).

[0026]   And, if necessary, seal the open parts formed between the cables C. Inject sealing material such as concealant to seal and wait for curing over time. I'm good. Further, the outer peripheral side surface of the seal block body 21 and the inner peripheral side surface of the sleeve 10 are pressed against each other. The parts are also made of synthetic resin material such as silicone sealant as needed. The above sealing material is injected and tightly closed tightly.

[0027]   In the present embodiment, the seal blocks 21 are arranged on the front and rear surfaces, respectively. Tightening bolts 23 and nuts 26 which are fastening members between the plurality of divided outer circumferential fastening boards 22. The seal block body 21 is clamped and fixed by screwing with the Although the sealing material is injected after it is placed in the container, it is not limited to this. Predetermined in the communication insertion hole 2 of the seal block body 21 opened by the cutout portion 24. So that the back side of the seal block body 21 is located at the back. The sealing material may be injected immediately before being pushed and placed in the sleeve 10. Yes. For example, open the cables C by about 2 mm, inject the sealing material, and seal the surroundings. After applying the rubbing material, the seal block body 21 is pressed and fixed as it is, and the sleeve 10 It is inserted and arranged inside.

[0028]

[Effect of device]

  Since the present invention is configured as described above, each cable on the pipe mouth side of the waterproof pipe 2 is A space for maintaining the linearity of each cable conduit P when supporting the conduits P. Easily and securely support and fix each cable conduit P on the mouth side of the waterproof tube 2 even though it is unnecessary In addition, it is possible to achieve a compact and simple structure.

[0029]   That is, the present invention prevents the cable conduit P inserted and arranged in the waterproof pipe 2 from being protected. Opening 3A for insertion and support at the mouth side of the waterproof tube 2 sealed by the water device The fixed plate 3 having the holes opened, and the cable conduit P drawn out from the opening 3A of the fixed plate 3. Tightening band to the cable conduit P so as to engage with the opening edge of the opening 3A. This is because it is provided with a fixing ring 4 for fastening and fixing via 5, Uses a split structure fixing ring 4 and a tightening band 5 for fastening the fixing ring 4. A small and simple structure for fixing the cable conduit P and the fixing plate 3 of the waterproof pipe 2 to each other. The cable conduit fixing device according to the present invention can be provided.

[0030]   The fixing ring 4 is composed of two circular arc-shaped fixing ring pieces 4A and 4B which are symmetrical with respect to each other. It is formed in a half-divided structure so that both fixing ring pieces 4A and 4B are formed. The inner circumference of the spiral that can mesh along the spiral groove formed on the outer circumference of the cable conduit P Has two ridges 6 and has two fixing ring pieces on the outer circumference of both fixing ring pieces 4A, 4B. A ring on which a tightening band 5 can be wound so that 4A and 4B are fixed to the cable conduit P by tightening. Since the groove 7 is provided, the two fixing ring pieces 4A, 4A, By placing 4B between cable conduits P, the cable can be easily and reliably The bull conduit P can be locked at the mouth side of the waterproof tube 2. Moreover, the tube of waterproof tube 2 It is attached to the outer peripheral side surface of the cable conduit P inserted into the mouth and the mouth side of the waterproof pipe 2. The gap between the fixed plate 3 and the inner circumference of the opening 3A of the fixed plate 3 is surely closed by the fixing ring 4. Therefore, the water-stopping effect can be sufficiently exerted.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view of the same usage state.

FIG. 3 is a partially cutaway front view of the same usage state.

4 is a sectional view taken along line XX in FIG.

[Explanation of symbols]

C ... Cables P ... Cable conduit Q ... Insertion type waterproof device W ... Box wall 1 ... Cable conduit fixing device 2 ... Waterproof pipe 2A ... Waterproof flange part 3 ... Fixing plate 3A ... Opening part 4 ... Fixing rings 4A, 4B ... Fixing Ring piece 5 ... Tightening band 5A ... Slit portion 5B ... Band end insertion portion 5C ... Screw portion 6 ... Projection portion 7 ... Annular groove 8 ... Housing 8A ... Cylindrical body portion 8B ... Lid portion 8C ... Flange portion 9 ... Aperture 10 ... Sleeve 11 ... Packing member 12 ... Bolt 13 ... Nut 14 ... Bushing 21 ... Seal block body 22 ... Divided outer peripheral clamping board 23 ... Pressing bolt 24 ... Open notch 25 ... Communication insertion hole 26 ...

Claims (2)

[Scope of utility model registration request] 1. A fixing plate having an opening for allowing a cable conduit inserted and arranged in a waterproof pipe to be inserted and supported at a pipe mouth side of a waterproof pipe sealed by a waterproof device, and an opening of the fixing plate. And a fixing ring for fastening and fixing the cable conduit drawn out from the cable conduit to the opening edge of the opening via a tightening band. 2. The fixing ring is formed in a half-divided structure in which the ring body is divided in half so as to be two symmetrically fixed arc-shaped fixing ring pieces, and a cable is provided on the inner circumference of both fixing ring pieces. It has a spiral ridge that can be engaged along the spiral groove formed on the outer circumference of the conduit, and a clamping band to clamp the two fixing ring pieces to the cable conduit on the outer circumference of both fixing ring pieces. The cable conduit fixing device according to claim 1, further comprising an annular groove in which the cable can be wound.