JP3281668B2 - Pit water leakage prevention method and device in piping system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a piping system laid in the soil, such as a circulating water pipe in a power plant, which is provided with a pit made of concrete almost in the middle thereof and penetrating therethrough. Equipment such as butterfly valves, exhibitions, rubber expansion joints, and instruments are installed on the pipes to be installed, and maintenance and management of these equipment is performed as necessary. In this case, water leaks from the gap between the pipe penetrating the pit and the side wall, and water accumulates inside the pit, causing a phenomenon that the installed equipment is corroded and the function thereof is deteriorated.

[0002] Pipes such as circulating water pipes are laid inside the building by penetrating the side wall of the power plant. In such a case, water leaks from the gap between the pipe and the side wall as in the case of the pit. As a result, there is a phenomenon that the equipment installed inside is damaged. The present invention relates to a method and an apparatus for preventing leakage of water from pits and the like performed to prevent water leakage from these pits and house side walls.

[0003]

2. Description of the Related Art As a conventional method for preventing water leakage, when water accumulates inside a pit, the water is discharged to the outside each time, and the leaked portion is repaired with cement or the like. Also, when water leakage was found from the side wall of the house, it was similarly repaired with cement or the like.

[0004]

However, in the repair of cement, which is a conventional method for preventing water leakage, the phenomenon of sinking of pipes and inclination of pits due to external factors, etc.
Due to the weak shielding strength of repaired cement, etc., water leaks again, water accumulates inside the pit, and the phenomenon of water intrusion into the interior of the house is repeated, and eventually damage to equipment can not be reliably prevented It is.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem in the related art, and is provided near a side wall of a building or a pit (hereinafter referred to as a pit) through which piping has penetrated. Between a pipe and the side wall, using a water-stopping device that seals and fixes a water-stopping rubber having elasticity and displacement with an appropriate member or the like, by providing a method for preventing water leakage such as a pit and the like, It is intended to solve the above problems.

The present invention provides a method for maintaining a space around a pipe,
An annular fixing member on the inner wall side of the side wall to be inserted,
Attach an annular fixing device, one or more cross-sectional waveforms
An annular ridge is provided near the center, and an annular water stop is provided at the ridge.
Gives elasticity and displacement to the rubber, and fixes the waterproof rubber end to the fixing member.
Between the pipe and the fixing device to form a waterproof
Attach an annular sediment prevention member to the outer wall of the side wall to be inserted ,
When surrounding, separate the fixing member and fixing device
Tighten the prevention member with welding or bolts and connect the waterproof rubber with adhesive
How to prevent pits from leaking in piping systems that are continuously integrated
The inner wall side of the side wall where the pipe was
-Shaped fixing member, an annular fixing device attached to the tube side,
One or more ridges with a wavy cross section are provided near the center,
The elasticity and displacement of the annular water-stop rubber in the axial direction of the tube are
Imparting the water-stop rubber end between the fixing member and the fixing device.
When holding and forming a water-stop device and surrounding it,
The fixed member and the fixing device are welded or bolted, and the waterproof rubber is bonded
This is a method for preventing pits from leaking in a piping system that is connected and integrated with materials .

[0007] The present invention also provides a method for maintaining a space around a pipe,
Is fixed on the inner wall side of the side wall where the
Is equipped with an annular fixing device, one or more
A ridge of a shape is provided near the center, and an annular stop is provided at the ridge.
Gives elasticity and displacement to the water rubber, and fixes the waterproof rubber to the fixing member.
The water stop device held between the and the fixing device, and the pipe penetrates
In a piping system with a sediment prevention member attached to the outer side of the side wall
It takes a leakage preventing device of the pits to secure the tube in transmural insertion hole
Ring-shaped fixing member on the inner wall side of the side wall, and ring-shaped on the tube side
Attaching the fixing device, ridges one or a plurality of cross-sectional wave shape
Part is provided near the center, and a pipe is formed on the annular waterproof rubber at the ridge.
It provides elasticity and displacement in the axial direction, and fixes the waterproof rubber to a fixing member.
This is a device for preventing water from leaking from a pit in a piping system by a water stop device held between the pit and a fixing device .

[0008]

[Action] leakage prevention method and apparatus of the pits according to the present invention,
Since the fixing member hermetically sealed on the side wall of the pit and the fixing device hermetically abutting against the pipe are hermetically connected with a waterproof rubber with elasticity and displacement, the pipe will sink due to an earthquake, land subsidence, etc. Even if pits, eccentricity, torsion, etc., or pits are inclined, causing gaps or cracks in the pit penetration, water leakage into the pits can be reliably prevented. it can.

Further, a method and apparatus for preventing pit water leakage according to the present invention are provided.
The installation can be performed not only for newly installed pipes, but also for existing pipes, and its versatility is extremely large.

Also, a method and apparatus for preventing pit water leakage according to the present invention are provided.
The device surely prevents water from leaking into the inside of the pit, thereby completely preventing corrosion of the equipment disposed inside the pit and facilitating maintenance of the equipment. Further, the water stop device for preventing water leakage from the pit according to the present invention has a simple structure and is relatively easy to construct.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on a first embodiment shown in FIGS. In FIG. 1, reference numeral 1 denotes a pipe of a piping system laid in the soil, which is used for moving circulating water or the like in a power plant or the like, and 2 denotes an opposing side wall made of concrete at an appropriate position of the piping system. A pit provided with a through-hole 4 for allowing the pipe 1 to penetrate the pipe 3, 3, and any equipment 5 such as a butterfly valve, an expansion rubber expansion joint, or an instrument is installed near the center of the pipe 1 in the pit 2. Along with
Between the inner wall 3 ', 3' near the two through holes 4, 4 and the pipe 1,
Water stopping devices 6 and 6 are mounted so as to surround the pipe 1.
Reference numeral 7 denotes a sediment prevention member for preventing earth and sand from entering the inside of the pit 2 from the gap 8 between the pipe 1 and the two through holes 4 and 4.

[0012] In FIG. 2, 7 _1, the side wall 3 of the pit 2
A packing 9 of a tubular cushion material made of rubber or the like abutting on the outer periphery of the tube 1 provided outside a gap 8 between the through hole 4 provided in the tube 1 and the tube 1, and a tubular member extending at a right angle. This is a sediment prevention member comprising an annular member main body 12 having an L-shaped cross section in which the lower leg 10 presses the cushioning packing 9 and the annular prevention plate 11 abuts against the outer wall 3 ″ of the side wall 3. The main body 12 is cut and divided at an appropriate portion before attachment, and after being surrounded by the pipe 1, the cut portion is fixedly connected by welding or the like and attached.

Reference numeral 13 denotes an annular plate-shaped fixed substrate 15 buried and fixed on the inner wall 3 ' side of the side wall 3 together with the anchor bolts 14 fixed thereto, and planted at a required interval near the center of the fixed substrate 15 in the width direction. A fixing member 17 including a plurality of fixing bolts 16 for fixing a waterproof rubber is fixed to an outer periphery of the pipe 1 by welding or the like at an inner end 18 and a plurality of waterproof rubbers are attached near an outer end at required intervals. This is a fixing device including an annular plate-shaped attachment member 20 on which fixing bolts 19 are implanted. The fixed substrate 15 and the attachment member 20 are divided at appropriate locations before attachment, and after surrounding the pipe 1, the cut locations are fixedly connected by welding or the like and attached.

The ridge 21 has a wavy section 22 formed near the center in the width direction of the main body 21 'and a plurality of fixing holes 23 at required intervals, and is formed on the same horizontal plane as the main body 21'. And two side attachment portions 24, 24 'formed as described above, and formed of a material obtained by combining one or both of synthetic rubber and natural rubber with synthetic fiber, hemp, or the like as a core material. In addition, it is an annular waterproof rubber.

An appropriate portion of the waterproof rubber 21 is cut and the pipe 1 is cut.
After the cut portion is fixedly connected with an adhesive or the like, the fixing hole 23 of the mounting portion 24 at the outer end is fitted to the fixing bolt 16, and the pressing plate 25 and the washer 26 are further fitted. The mounting portion 24 of the waterproof rubber 21 is hermetically attached to the fixing member 13 by tightening with a nut 27. Next, attachment member 2
The fixing hole 19 of the mounting portion 24 ′ at the inner end is fitted to the fixing bolt 19, and the pressing plate 25 and the washer 26 are further fitted and tightened with the nut 27 to attach the mounting portion 2 of the waterproof rubber 21.
4 ′ is hermetically attached to the fixing device 17. Fixing member 13 constitute a water stopping device ₆₁ in a fixed unit 17 and the water-shutoff rubber 21. The water stopping device ₆₁ is also mounted on the inner wall of the opposite side wall to the side wall 3.

The method and apparatus for preventing water leakage from a pit according to the present invention comprises a fixing member 13 hermetically fixed to an inner wall 3 'of a side wall 3 such as a pit 2, and a fixing device hermetically contacted to a pipe 1. 17 is hermetically connected by a waterproof rubber 21 having elasticity and displacement, so that the pipe 1 may sink, eccentric, twist, etc. due to an earthquake or land subsidence, or the pit 2 itself may be inclined. Therefore, even if a gap or a crack occurs in the portion where the pit 2 penetrates, water leakage into the pit 2 or the like can be reliably prevented.

Since the method and apparatus for preventing water leakage from the pit surely prevent water from leaking into the pit 2, the corrosion and the like of the equipment 5 disposed inside the pit 2 are completely prevented, and the equipment 5 is prevented from leaking. Facilitates maintenance. The water stop device of leakage prevention of such pits _61, the structure is the construction is relatively easy so easy, moreover is very excellent in economical efficiency because long life.

A second embodiment of the present invention will be described below in detail with reference to FIG. 13 ₁ is a lower part 29 ′ on the side wall 3 of the pit 2
A plurality of fixing bolts 29 which are embedded at a predetermined interval on the circumference and have a head 29 ″ protruding toward the inner wall 3 ′;
An annular plate-shaped packing 30 made of rubber or the like is interposed in the fixing bolt 29, a plurality of through-holes 31 formed at predetermined intervals are fitted, a taper washer 32 is further fitted, and the nut 27 is tightened. One rising piece 33 'is hermetically fixed, and the other rising piece 33 "is provided with a plurality of bolt holes 34 for attaching a waterproof rubber at required intervals. Is a fixing member.

Reference numeral 17 ₁ denotes a fixing device having the same configuration as the fixing device 17 of the first embodiment, and the names and functions of symbols are the same as those of the first embodiment. The water-stop rubber 21 similar to that of the first embodiment is cut at an appropriate location to surround the pipe 1, and then the cut location is fixedly connected with an adhesive or the like. Next, the taper washer 32 is fitted and the bolt hole 34 of the rising piece 33 ″ is formed.
The fixing hole 23 of the mounting portion 24 of the waterproof rubber 21 is fitted to the mounting bolt 35 fitted into the waterproof rubber 21, the pressing plate 25 is further fitted and tightened with the nut 27, and the outer end of the waterproof rubber 21 is the mounting portion 24 and sealed attachment to the fixed member 13 _1, followed by fitting the fixing hole 23 of the mounting portion 24 'of the water stop rubber 21 on the fixing bolt 19, and further fitting the pressure plate 25 by nuts tighten 27, to seal attaching the attachment portion 24 of the waterproofing rubber 21 'to the fixed apparatus 17 _1. Fixing member 13 _1, the water stopping device in a fixed apparatus 17 _1, and the water stop rubber 21 constitutes a 6 _2. The water stopping device 6 ₂ is mounted to the inner wall of the opposite side walls of the side walls 3. The operation and effect of the second embodiment are the same as those of the first embodiment.

A third embodiment of the present invention will be described below in detail with reference to FIG. Sediment prevention member 7 ₂ provided outside of the gap 8 between the transmural insertion hole 4 and the tube 1 of the pit 2 is exactly the same as soil prevention member ₇₁ described in the first embodiment. Also fixing member 13
₂ is exactly the same as the fixing member 13 described in the first embodiment. Names and functions for soil prevention member ₇₁ and the symbols used in the fixing member 13 ₂ is the same as that in the first embodiment.

[0021] 17 _2, the inner end vicinity of the annular plate substrate 36 which is in contact with the outer periphery of the inner end 18 the tube 1, the locking plate 37 of the tubular upright fixed to the substrate 36, the engaging plate 37 A plurality of tightening bolts 38 implanted at required intervals on the substrate 36 between the
And an annular plate-like tightening plate 39 fitted to the tightening bolt 38 to form a press-contact chamber 41 containing an annular waterproof packing 40 pressed against the outer periphery of the pipe 1. A plurality of fixing bolts 4 for attaching waterproof rubber near the outer end of the
2 is a fixing device composed of an annular mounting member 43 in which 2 is implanted. By tightening the tightening plate 39 with the nut 27, the water-stop packing 40 in the press-contact chamber 41 is compressed and pressed against the outer periphery of the pipe 1 to maintain the seal.

The preparative same waterproofing rubber 21 as used in the first and second embodiments, between the fixed member 13 ₂ and the stationary device 17 ₂ in the same manner performed in the first and second embodiments To wear. That is, after the water-stopping rubber 21 is surrounded by the pipe 1, the fixing hole 23 of the mounting portion 24 is fitted to the fixing bolt 16, the pressing plate 25 and the washer 26 are further fitted, and the nut 27 is tightened. the parts 24 were sealed attached to the fixed member 13 _2,
Mounting portion 24 'of the fixing hole 23 of the fitted, pressing plate 25, clamping the attachment portion 24 by a nut 27 through a washer 26' in the fixing bolt 42 of the mounting member 43 to seal attached to the fixing device 17 _2.

[0023] constituting the fixing member 13 _2, the fixing device 17 _2, and water stopping device 6 ₃ in water-shutoff rubber 21. This water stop device 6
₃ is also mounted on the inner wall side of the side wall facing the side wall 3. The water stopping device 6 _3, as in the case of the first and second embodiments in the tube 1 becomes outdated, when unable to fix the securing member 20 to the tube 1 welding or the like, or non-fume tubes such as welding ,
It is also effective for pipes such as concrete pipes. Other functions and effects of the third embodiment are the same as those of the first and second embodiments.

A fourth embodiment of the present invention will be described below in detail with reference to FIG. 7 ₃ is a sediment prevention member 7 _1, 7 ₂ exactly identical soil prevention member in the first and third embodiments. The names and functions for the related symbols are the first and third.
This is the same as in the embodiment. 13 _3, 'and the annular plate of solid substrate with 44 embedded fixed to side, at right angles to a solid substrate with a 44 wide sides 45' the inner wall 3 of the side wall 3 with the anchor bolts 14 secured to the end of the welding 45 'wide side
A fixing member comprising an annular connecting member 45 having an L-shaped cross section and having a plurality of bolt holes 46 for attaching a water-stopping rubber at required intervals on a narrow side 45 ″ parallel to.

[0025] 17 _3, the inner end via an annular packing 47 on the outer periphery of the tube 1 abutting been circular plate-shaped mounting substrate 4
8, one end of an annular partition plate 49 having an L-shaped cross section is fixed to the mounting base material 48 by welding or the like, and the other end is brought into contact with the pipe 1 via the packing 47 so that the pipe 1 A filling chamber 51 into which a sealing material 50 to be closely contacted with the outer periphery is injected is formed, and a tubular protruding plate 52 fixed upright to an outer end of the fixing substrate 48 is
A fixing device 55 comprising an annular seal member 54 provided with a plurality of bolt holes 53 for attaching a waterproof rubber at required intervals, 55
Is a flange fixed to both ends of a portion where the seal member 54 is cut at an appropriate position. After being surrounded by the pipe 1, the flange 55 is bolted and the divided seal members 54 are hermetically connected.

The preparative same waterproofing rubber 21 as that used in the first to third embodiment, between the fixed member 13 ₃ and the stationary unit 17 ₃ in the first to third similar conducted in Example technique To wear. That is, after the waterproof rubber 21 is surrounded by the pipe 1, the fixing member 1
3 to ₃ attachment bolts 35 inserted in bolt holes 46 of the fixing holes 23 of the mounting portion 24 is fitted, further pressing plate 25,
The washer 26 is fitted by tightening the nut 27, and sealed attach the attachment portion 24 to the fixing member 13 _3, the fixing device 17 ₃
Mounting bolt 3 inserted into the bolt hole 53 of the projection plate 52 of FIG.
5, the mounting portion 24 'fixing hole 23 of the pressing plate 25 and a washer 26 are sequentially fitted by tightening the nut 27, the mounting portion 24' to seal fixed to the fixed unit 17 _3.

The fixing member 13 _3, the fixing device 17 _3, and constitute the waterproofing device 6 ₄ by the water-shutoff rubber 21. The water stop device 6 ₄ by press-fitting the sealing member 50 from provided appropriate places pressure inlet of the filling chamber 51 after attached to form a seal between the tube 1 and the stationary unit 17 _3. The water stop device 6 ₄ is attached to the inner wall of the opposite side walls of the side walls 3. 4th
The operation and effect of this embodiment are the same as those of the third embodiment.

A fifth embodiment of the present invention will be described below with reference to FIG. 7 _4, the tubular cushion made of rubber which is provided outside the gap 8, in contact with the outer periphery of the penetrated tube 1 inside the gap 8 between the transmural insertion hole 4 and the tube 1 of the pit 2 sidewall 3 Earth and sand prevention comprising a member 9 'and an annular member body 12' having a T-shaped cross section in which a prevention plate 11 'fixed to the middle of a lower leg 10' which is in close contact with the cushion material 9 'is brought into contact with the outer wall 3 ". The attachment method of the member main body 12 'is the same as that of the member main body 12 of the first embodiment.

[0029] 13 ₄ is embedded and fixed to the inner wall 3 'of the side wall 3 of the pit 2, a circular ring-shaped fixing substrate 57 a plurality of fixing bolts 56 are implanted at predetermined intervals, the transmural insertion hole 4 An anchor bolt 14 fixed to the peripheral wall is embedded in the side wall 3, and one end is fixed to the prevention plate 11 ′ and the other end is fixed to the inner end of the fixed substrate 57, respectively. 58 and a fixing member.

[0030] 17 ₄ is fixed to the outer periphery of the tube 1 the inner end 18 welding or the like, a plurality of water stop rubber preparative worn bolt holes 60 at predetermined intervals in the extension plate 59 which is bent to the outer end at a right angle The fixing device 62 provided with an annular fixing member 61 having an inverted L-shaped cross-section is provided. Are formed of the same material as the water-stopping rubber 21, which is provided with mounting portions 65, 65 ′ at both ends formed so as to stand upright with respect to the main body 62 ′. It is an annular waterproof rubber.

An appropriate portion of the waterproof rubber 62 is cut and the pipe 1 is cut.
After the cut portion is fixedly connected with an adhesive or the like, the fixing hole 23 of the mounting portion 65 is fitted to the fixing bolt 56, and the pressing plate 25 and the washer 26 are further fitted and tightened with the nut 27. Te, seals attaching the attachment portion 65 of the water stop rubber 62 on the fixed member 13 _4. Next, the fixing hole 23 of the mounting portion 65 ′, the pressing plate 25, and the washer 26 are sequentially fitted to the mounting bolt 35 inserted into the bolt hole 60 of the fixing material 61, and tightened with the nut 27 to stop water. Mounting part 6 for rubber 62
5 'seals attached to the fixed unit 17 _4.

The fixing member 13 _4, constitutes a water stop device 6 ₅ fixed unit 17 ₄ and the water shut-off rubber 62. This water stop device 6 ₅
Is also mounted on the inner wall side of the side wall facing the side wall 3. The operation and effect of the fifth embodiment are the same as those of the first and second embodiments.

A sixth embodiment of the present invention will be described below in detail with reference to FIG. 13 ₅ is buried 'lower portion 66 on the side of' the inner wall 3 of the side wall 3 of the pit 2 is projected the head 66 "to the inner wall 3 'side, plurality of juxtaposed arranged at predetermined intervals on the circumference , And a packing 67 made of rubber or the like is sandwiched between the two mounting bolts 66, 66 to form a washer 26.
And a ring-shaped fixing board 69 in which a plurality of fixing bolts 68 are planted at required intervals near the center in the width direction.

[0034] 17 _5, a tubular lower leg 71 which is fixed to the inner end 18 periphery in a tubular packing 70 made of rubber surrounds the tube 1 is pressed against, the inner end vicinity of the annular substrate 72, the substrate 72 A locking plate 73 fixed upright on the base plate, a tightening bolt 74 planted on the base plate 72 in the middle of the locking plate 73 and the tube 1, and an annular plate-shaped tightening fitted to the tightening bolt 74. Board 7
5 to form a press-contact chamber 76 for enclosing the annular waterproof packing 40 to be pressed against the outer periphery of the pipe 1.
This is a fixing device comprising an annular fixing member 79 provided with a plurality of bolt holes 78 for attaching a waterproof rubber at a required interval on a tubular projecting plate 77 which is fixed upright to an outer end of the fixing member.

When the nut 27 is tightened, the water-stop packing 40 is pressed against the outer periphery of the pipe 1 as in the third embodiment to maintain the seal. Numerals 80 are flanges fixed to both ends of a portion where the fixing member 79 is appropriately cut. After being surrounded by the tube 1, the flange 80 is bolted and the divided fixing members 79 are hermetically connected.

The waterproof rubber in the sixth embodiment has the same material and structure as the waterproof rubber 62 of the fifth embodiment, and the names and functions of the used symbols are the same as those in the fifth embodiment. As in the case of the fifth embodiment, the waterproof rubber 62 surrounding the pipe 1 is fixed to the fixing bolt 68 by the fixing hole 2 of the mounting portion 65.
3, the pressing plate 25 and a washer 26 are sequentially fitted to tighten the nut 27, and sealed attach the mounting portion 65 to the fixing member 13 _5, a washer 26 is interposed in the bolt hole 78 of the projecting plate 77 fitted The fixing hole 23 of the mounting portion 65 ′, the pressing plate 25, and the washer 26 are sequentially fitted to the mounting bolt 35 thus obtained,
Tighten with the nut 27 to fix the mounting portion 65 'to the fixing device 17 ₅
And sealed.

The fixing member 13 _5, constituting the waterproofing device 6 ₆ fixed device 17 ₅ and water stop rubber 62. This water stop device 6 ₆
Is also mounted on the inner wall side of the side wall facing the side wall 3. The operation and effect of the sixth embodiment are the same as those of the first to fifth embodiments.

In each of the above embodiments, the waterproof rubber 21,
In the case of 62, one ridge 22 is provided at the center in the width direction of the main bodies 21 'and 62', but if great elasticity and displacement are required, a plurality of ridges may be provided. Water-stop rubber 62
Is a mounting portion 65 that stands upright with respect to the main body 62 'at one side end.
However, if necessary, a mounting portion may be provided in which both ends are upright with respect to the main body 62 '. Also, the fixing members 13, 13
And _{1-13 5,} the combination of the fixed device 17, 17 ₁ to 17 ₅ is not intended to be bound by the combination in each example,
Other combinations may be performed depending on the purpose of use.

In each of the embodiments, the pipe 1 is described as a steel circular pipe. However, concrete pipes, fume pipes and the like may be used in practice. In such a case, the fixing device of the third, fourth, and sixth embodiments is used. Each of the fixing devices 1 is used for any one of tubes 17 ₂ , 17 ₃ , and 17 ₅ , and for a tube having a rectangular cross section that is not circular.
The inner end of 7, 17 _{1-17 5} be shaped commensurate therewith not been俟the argument. The fixed unit 17 _3, 17 ₅ in the fourth and sixth embodiments, by fixing the respective flanges 55,80 to cut both ends, has been sealed connection by tightening it, without the use of flanges 55,80 Alternatively, a method of fixing directly to the surface by welding or the like may be used. Matatome water systems 6 ₁
6 ₆ has been respectively attached to the inner wall 3 'of the opposite side wall 3 inside the pit 2, in the case of walls with a transmural insertion hole 4 of the power plants, the logical it may be a single water stop device I don't know.

[0040]

The method and apparatus for preventing pit water leakage according to the present invention.
The fixed member is fixedly connected to the inner wall of the pit, and the fixing device that is in contact with the pipe is sealed and connected with waterproof and elastic rubber that has elasticity and displacement. Even so, it is possible to reliably prevent water from leaking into the pit.

Also, since water leakage into the pit is reliably prevented, maintenance and management of the equipment disposed inside is facilitated.
Management costs can be reduced. In addition to the new pipes, the existing pipes can be used for the old pipes, so that the versatility is extremely large. In addition, the water stop device has a simple structure, is relatively easy to construct, and has a long life, so that facility costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic view of a main part with a front notch for explaining a method and an apparatus for preventing water leakage from a pit or the like according to the present invention.

A A vertical sectional view - Figure 2 partially cutaway with the A of the first embodiment of the present invention.

A A vertical sectional view - [3] A partially cut away and in a second embodiment of the present invention.

A A vertical sectional view - [4] A partially cut away and in a third embodiment of the present invention.

A A vertical sectional view - [5] A partially cut away and the fourth embodiment of the present invention.

A A vertical sectional view - [6] A partially cut away the fifth embodiment of the present invention.

A A vertical sectional view - 7 A partially cut away and the sixth embodiment of the present invention.

[Explanation of symbols]

1 tube 2 pit third sidewall 3 'in wall 3' outer wall 4 consistent insertion hole 5 devices 6,6 _and 62 _{through 65,} 6 ₆ waterproofing device 7,7 _1, 7 _2, 7 _3, 7 ₄ sediment prevention member 8 intervals 9,30,47,67,70 packing 10, 10 'lower leg 11, 11' preventing plate 12, 12 'member body 13 _1, 13 ₂ to 13 ₅ fixed member 14 anchor bolts 15 fixing substrate 16 , 19,29,42,56,68 fixing bolts 17 _1, 17 ₂ to 17 ₅ fixed apparatus 18 inner end 20 securing member 21,62 waterproofing rubber 21 ', 62' the body 22 ridges 23 fixing hole 24, 24 ', 65, 65' Mounting part 29 ', 66' Lower part 29 ", 66" Head 31 Through hole 33 Connection member 33 ', 33 "Rising piece 34, 46, 53, 60, 64, 78 Bolt hole 35 Mounting bolt 36, 72 Substrate 37, 73 Locking plate 38,74 Tightening bolt 39,75 Tightening plate 40 Waterproof packing 41,76 Pressing chamber 43 Mounting member 44 Fixed substrate 45 Connecting member 45 'Wide side 45 "Narrow side 48 Mounting base material 49 Separator plate REFERENCE SIGNS LIST 50 sealing material 51 filling chamber 52 projecting plate 54 sealing member 57 fixing substrate 58 supporting form 59 extending plate 61 mounting material 66 mounting bolt 69 mounting substrate 76 press-contact chamber 77 protruding plate 79 fixing member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F16L 5/02-5/14 E02D 29/12

Claims (9)

(57) [Claims] An interval (8) is maintained around the tube (1),
An annular fixing portion is provided on the inner wall (3 ') side of the side wall through which the pipe is inserted.
Material (13 _2, 13 _3, 13 _4), annular shape to the tube side
The fixing device (17, 17 _2, 17 _3, 17 ₄₎ Attach the
Only, near ridges of one or a plurality of cross-sectional wave shape (22) Central
In order to prepare for the water stop rubber (21, 62)
Gives elasticity and displacement, and fixes the waterproof rubber end to a fixing member
Waterproofing apparatus is held between the device (6, 6 _3, 6 _4,
6 ₅₎ to form the outer wall tube transmural interpolating sidewall (3 ') side sediment prevention of annularly
Member (7 _1, 7 _2, 7 _3, 7 ₄₎ attached to, when the surrounding fixation device and sediment and divided fixing member
Tighten the prevention member with welding or bolts and connect the waterproof rubber with adhesive
A method for preventing pits from leaking in a piping system that is subsequently integrated . 2. The side on which the pipe (1) is fixed by the through hole (4).
On the inner wall (3 ') side of the wall, an annular fixing member (13 ₁ , 1
3 _5), the fixing device of the annular shape in the tube side (17 _1, 17 ₅₎
And attach one or more ridges (22) with a wavy cross section near the center.
In order to prepare for the water stop rubber (21, 62)
Gives elasticity and displacement in the axial direction of the pipe, and fixes the waterproof rubber end
The water stop device (6 ₂ ,
6 ₆₎ is formed, when the surrounding, divided fixing member and the fixing device is welded or volume
Piping to connect and integrate waterproof rubber with adhesive
How to prevent pits from leaking in the system. (3)Fixing device on pipe (1) side (17 _Two , 17
_Five ) Is the substrate (36, 72) of the fixing device and the clamping plate (3).
9, 75) to form a pressure contact chamber (76), The waterproof packing (40) provided on the contact surface with the pipe is
3. The piping system according to claim 1, wherein the piping system is in pressure contact with a sandwiching pipe surface.
To prevent pits from leaking water. 4. A fixing device (17 ₃ ) on the pipe (1) side ,
The mounting base material (48) and the partition plate (49) constituting the fixing device
A filling chamber (51) is formed between the two, and a sealing material (50) is injected into the filling chamber to cover the tube surface.
Prevention of pit water leakage in the piping system according to claim 1 or 2.
Stop method. 5. A tube (1) having a circular or square cross section.
And the inner end of the member circumscribing the pipe has a corresponding shape.
Item 1. How to prevent pits from leaking in a piping system according to item 1 or 2.
Law. 6. A space (8) is maintained around the pipe (1),
An annular fixing is provided on the inner wall (3 ') side of the side wall through which the pipe passes.
Member (13, 13 _2, 13 _3, 13 _4), a circular annular tube side
The fixing device (17, 17 _2, 17 _3, 17 ₄₎ Attach the
Only, near ridges of one or a plurality of cross-sectional wave shape (22) Central
In order to prepare for the water stop rubber (21, 62)
It provides elasticity and displacement, and attaches the waterproof rubber to a fixing member and a fixing device.
Waterproofing apparatus is held between the location (6,6 _3, 6 _4, 6 ₅₎
A sediment prevention member is provided on the outer wall (3 ″) side of the side wall through which the pipe penetrates.
(7 _1, 7 _2, 7 _3, 7 ₄₎ to the pipe system fitted with a
Pit water leakage prevention device. 7. The side on which the pipe (1) is fixed by the through hole (4).
On the inner wall (3 ') side of the wall, an annular fixing member (13 ₁ , 1
3 _5), the fixing device of the annular shape in the tube side (17 _1, 17 ₅₎
And attach one or more ridges (22) with a wavy cross section near the center.
In order to prepare for the water stop rubber (21, 62)
Provides elasticity and displacement in the axial direction of the pipe,
Water stop device held between the wood and the fixing device (6 _2, 6 ₆₎
Pit water leakage prevention device in piping system. 8. A fixing device (17 ₂ , 1 ) on the tube 1 side.
7 _5), clamping plate and the substrate (36,72) of the fixing device
(39, 75) form a pressure contact chamber (76), and
The watertight packing (40) provided on the surface is sandwiched
8. The pipe in the piping system according to claim 6,
Water leakage prevention device. 9. A fixing device (17 ₃ ) on the pipe (1) side.
Next, the mounting base material (48) and the partition plate (4
9) and a filling chamber (5) in which a sealing material (50) is injected.
The piping system according to claim 6, wherein 1) is formed.
Pit water leakage prevention device.