JP2007218032A - Piping structure, piping method and fixing joint used for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make working efficiency excellent by pulling up piping 12 from a floor and connecting the piping to a facility pipe of a drainage facility above the floor, and to easily pull up the piping 12 even if the tip part position of the piping 12 is offset from the position of a through hole 14 by spreading a net 56 wide. <P>SOLUTION: The net 56 is mounted to the tip part of the piping 12, and the piping 12 is laid under the floor. After spreading the net 56 wide, the floor 18 is constructed. After construction, the through hole 14 is formed in the floor 18, and a lifting tool 60 is allowed to pass through the through hole 14 from above the floor. When the lifting tool 60 is hooked to the net 56 to lift the net 56, the piping 12 is towed by the net 56 to lift the tip part of the piping 12 while bending a flexible pipe 28 of the piping 12. The lifted tip part passes through the through hole 14 and reaches above the floor, and the tip part is connected to the facility pipe of the drainage facility above the floor. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a piping structure, a piping method, and a fixed joint used therefor, and particularly, for example, a piping structure, a piping method, and a pipe connecting a pipe laid under a floor and a facility pipe laid on the floor in a detached house, and It is related with the fixed joint used for it.

  Examples of conventional piping structures are disclosed in Patent Documents 1 and 2.

  In the pipe connection structure of Patent Document 1, a pipe connection member is connected to the lower end of the floor through water distribution pipe. Then, the pipe connecting member is connected to the drain main pipe under the floor by rotating or bending the pipe connecting member with respect to the floor penetrating equipment pipe.

In the collective collective drainage system of Patent Document 2, the pipe is drained under the floor and connected to the one-touch type by removing it from the inspection hole.
JP 2005-76337 A [E03C 1/122, E03C 1/12] JP 2002-70099 A [E03C 1/12]

  In the prior art of Patent Document 1, the displacement between the drain main pipe and the floor through water distribution pipe can be absorbed by the pipe connecting member, but it is necessary to connect the pipe connecting member and the drain main pipe in a narrow space under the floor. Yes, workability is inferior.

  In the prior art of Patent Document 2, piping and drainage can be connected with a one-touch type, but it is necessary to perform these connection operations under the floor, resulting in poor workability.

  Therefore, a main object of the present invention is to provide a piping structure, a piping method, and a fixed joint used therefor, which are excellent in workability.

  The invention of claim 1 includes a pipe laid under the floor and bent at least partially, a through hole provided in the floor, and an equipment pipe laid on the floor, and the pipe is pulled up from the upper floor through the through hole onto the floor. It is a piping structure connected to the equipment pipe on the floor.

  In the first aspect of the present invention, pipes (12, 62, 96, 100: reference numerals exemplifying corresponding portions in the embodiments; the same applies hereinafter) are laid under the floor, and the pipes (12, 62, 96, 100) are connected. For example, it is lifted from the floor with a lifting jig (60). Thereby, piping (12, 62, 96, 100) bends in the part under the floor, and a tip part of piping (12, 62, 96, 100) passes through a through-hole (14), and is pulled up on the floor. Then, pipes (12, 62, 96, 100) are connected on the floor to equipment pipes (16, 116) laid on the floor.

  Thus, workability improves by pulling up the pipes (12, 62, 96, 100) from the floor and connecting the pipes (12, 62, 96, 100) to the equipment pipes (16, 116) on the floor. .

  The invention of claim 2 is a fixed joint for fixing piping extending from above the floor through the through-hole to the floor, a ring-shaped main body having a center hole and an outer diameter larger than the through-hole, and a main body The fixed joint is provided with an inner edge that surrounds the center hole, the body is fixed on the floor, and a pipe is connected to the inner edge.

  In the invention of claim 2, the pipe (12, 62, 96, 100) laid under the floor is passed through the through hole (14) and pulled up to the floor, and then the inner edge (93) of the fixed joint (74). To join. Since the inner edge portion (93) surrounds the central hole (90), the pipe (12, 62, 96, 100) can be joined to the fixed joint (74) with the opening opened. For this reason, if, for example, the equipment pipe (16, 116) is inserted into the opening of the pipe (12, 62, 96, 100), the pipe (12, 62, 96, 100) is installed in the equipment pipe (16, 116), etc. Can be easily connected to.

  Moreover, since the outer diameter of the main body (75) of the fixed joint (74) is larger than the through hole (14), the main body (75) is locked on the floor around the periphery of the through hole (14). Thereby, piping (12, 62, 96, 100) pulled up from under the floor to the floor can be easily fixed on the floor.

  The invention of claim 3 is: (a) a step of attaching a traction member to the tip of a pipe that can be bent at least partially and laying the pipe under the floor; and (b) drilling a through hole in the floor stretched above the pipe. (C) A step of pulling up the pipe onto the floor by passing the pulling jig through the through hole from the floor and pulling up the pulling member with the pulling jig, (d) Attaching the fixed joint to the pipe pulled up on the floor A piping method including a step, and (e) a step of connecting a pipe to an equipment pipe laid on the floor.

  In the invention of claim 3, the pulling member (56) is attached to the tip of the pipe (12, 62, 96, 100), and the pipe (12, 62, 96, 100) is laid under the floor. A floor is stretched above the pipe (12, 62, 96, 100), and a through hole (14) is provided in the floor. Then, the lifting jig (60) is passed through the through hole (14) from the floor, and the pulling member (56) is pulled up by the lifting jig (60). As a result, the pipes (12, 62, 96, 100) bend under the floor, and the pipes (12, 62, 96, 100) pass through the through holes (14) and are pulled up onto the floor. A fixed joint (42, 64, 74, 120) is mounted on the floor of the pipe (12, 62, 96, 100) on the floor, and then installed on the pipe (12, 62, 96, 100). Connect the tubes (16, 116).

  As described above, the pipe (12, 62, 96, 100) that can be bent at least partially is used, and the pulling member (56) is attached to the pipe (12, 62, 96, 100) in advance to raise the pipe. The tip of the pipe (12, 62, 96, 100) can be easily pulled up from the floor using the jig (60). Also, the pulled pipes (12, 62, 96, 100) can be connected to the equipment pipes (16, 116) on the floor. For this reason, it is excellent in workability.

  According to this invention, since the piping can be pulled up from the floor and connected to the equipment pipe on the floor, the workability is excellent.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

  In the piping structure 10 according to one embodiment of the present invention shown in FIG. 1, a pipe 12 is laid under the floor, and a tip portion thereof is connected to a facility pipe 16 laid on the floor through the through hole 14.

  The floor 18 is formed by laminating a floor board material 20 and a heat insulating material 22, and the floor board material 20 is made of flooring or the like. The thickness of the floor board 20 is set to 12 mm, for example, and the thickness of the heat insulating material 22 is set to 50 mm, for example.

  A through hole 14 is formed in the floor 18. The diameter of the through hole 14 is set, for example, to a size obtained by adding a clearance of about 5 mm to the diameter of the pipe 12.

  A drainage facility 24 is disposed on the floor above the through hole 14. Examples of the drainage facility 24 include a washroom, a washing machine, and a sink. The equipment pipe 16 is connected to the drainage equipment 24, and the equipment pipe 16 is laid on the floor and extends to the through hole 14.

  A pipe 12 is laid under the floor. The pipe 12 includes a first straight pipe 26, a flexible pipe 28, and a second straight pipe 30. A VU pipe or the like is used for the first straight pipe 26 and the second straight pipe 30. For the flexible tube 28, a hose or the like formed of a soft material such as an elastomer resin and having a smooth inner surface and outer surface is used.

  The first straight pipe 26 is connected at a right angle by a flexible pipe 28 and an elbow 32, and the first straight pipe 26 extends at a right angle or a substantially right angle with respect to the floor 18. The flexible tube 28 is linearly connected by the second straight tube 30 and the socket 34, and the flexible tube 28 extends in a direction parallel to the floor 18, or extends while being inclined upward toward the first straight tube 26. . The 2nd straight pipe 30 is supported by the support metal fitting 35, and the height is adjusted.

  The length of the pipe 12 in the direction parallel to the floor 18 is set to be the same as or longer than the length in the horizontal direction from a drain header to a through hole 14 described later. The diameter of the pipe 12 is set to be the same as or larger than the diameter of the equipment pipe 16.

  The rear end of the pipe 12, that is, one end of the second straight pipe 30 is connected to the drain header 36 or the like. The drainage header 36 is disposed on the foundation 38 and connected to a drainage main pipe 40 penetrating the foundation 38. The drainage main pipe 40 is connected to a house mushroom (not shown).

  The tip of the pipe 12, that is, the end of the first straight pipe 26 passes through the through hole 14 and is connected to the equipment pipe 16 of the drainage equipment 24 by the fixed joint 42 shown in FIG.

  The fixed joint 42 has a flange portion 44, an upper cylindrical portion 46, and a lower cylindrical portion 48, which are integrally formed.

  The collar portion 44 is formed to project outward from the lower cylindrical portion 48 and the upper cylindrical portion 46, and has a ring shape having a center hole 44a at the center thereof. The diameter of the central hole 44a is set to be equal to or larger than the inner diameter of the first straight pipe 26 and the equipment pipe 16, and the central hole 44a communicates the first straight pipe 26 and the equipment pipe 16.

  The outer diameter of the flange 44 is set larger than the diameter of the through hole 14. For this reason, the collar portion 44 is fixed on the floor around the periphery of the through hole 14, thereby preventing the tip portion of the pipe 12 from falling. The flange portion 44 is provided with a screw hole 50, and the fixed joint 42 is fixed to the floor 18 by a screw 52 passed through the screw hole 50.

  The upper cylindrical portion 46 extends upward from the flange portion 44, and the hollow portion of the upper cylindrical portion 46 communicates with the center hole 44a. The deodorizing socket 54 is fitted on the upper part, and the equipment pipe 16 passes through the upper cylindrical portion 46 and the deodorizing socket 54.

  The deodorant socket 54 has a main body 51 and a cylindrical holding portion 53 that is screwed onto the upper portion of the main body 51, and the inner surface of the holding portion 53 is screwed to the outer surface of the upper portion of the main body 51. A groove is formed by the upper portion of the main body 51 and the holding portion 53, and a waterstop material such as a rubber packing 55 is attached to the groove. When the holding portion 53 is tightened to the upper portion of the main body 51, the rubber packing 55 is crushed and spreads to the inner surface side of the holding portion 53, and is in close contact with the outer surface of the equipment pipe 16. The lower inner surface of the main body 51 is in close contact with the outer surface of the upper cylindrical portion 46. As a result, the main body 51 and the rubber packing 55 block the opening between the upper cylindrical portion 46 and the equipment pipe 16, and it is possible to prevent the bad smell in the equipment pipe 16 from leaking outside.

  The lower cylindrical portion 48 extends downward from the flange portion 44 in the through hole 14, and the hollow portion of the lower cylindrical portion 48 communicates with the center hole 44a. The inner diameter is set to be the same as or substantially the same as the outer diameter of the first straight pipe 26. The distal end portion of the pipe 12 is inserted inside the lower cylindrical portion 48, and the outer surface of the pipe 12 is fixed to the inner surface of the lower cylindrical portion 48 with an adhesive or the like. As a result, the lower cylindrical portion 48 is connected to the pipe 12.

  In such a piping method of the piping structure 10, as shown in FIG. 3, the first straight pipe 26 and the flexible pipe 28 are first connected by the elbow 32, and the flexible pipe 28 and the second straight pipe 30 are connected to the socket 34. The pipe 12 is prepared by connecting them. Then, the rear end of the pipe 12 is connected to the drain header 36 to which the drain main pipe 40 is connected. A pulling member is attached to the tip of the pipe 12.

  An annular string or a net 56 shown in FIGS. 1 and 4 is used as the pulling member. The net 56 is formed by combining strings 58 in a lattice shape and has a plurality of rectangular holes 59. For the string 58, a resin having flexibility and tensile strength such as nylon is used. The length of the net 56 is set to 50 cm, for example, and the length of the rectangular hole 59 is set to 5 cm, for example.

  Then, the pipe 12 to which the net 56 is attached is laid so that the tip end of the pipe 12 is disposed below the planned position of the drainage facility 24. Then, as shown in FIGS. 3 and 4, the net 56 is widely expanded from the tip end portion of the pipe 12.

  A floor 18 is stretched above the pipe 12, the floor 18 is perforated, and a through hole 14 is formed at a position where a drainage facility 24 is to be disposed. Under the through hole 14 formed at the predetermined position, the tip end portion of the pipe 12 and the net 56 are located.

  Next, a lifting jig 60 is prepared. As the lifting jig 60, a tool that can hook the net 56 such as a rod-like member bent at an acute angle is used. The lifting jig 60 is passed through the through hole 14 from above the floor, hooked on the net 56, and then pulled up to the floor. Thereby, as shown in FIG. 5, the net 56 is pulled up, and the flexible pipe 28 of the pipe 12 is bent along with this, whereby the pipe 12 is pulled up. The tip of the pipe 12 passes through the through hole 14 and extends on the floor.

  And the inclination of the piping 12 under the floor is adjusted. For example, when the inclination of the pipe 12 is small under the floor, the tip of the pipe 12 is cut and pulled up to increase the inclination of the pipe 12 under the floor.

  The distal end portion of the pipe 12 is fitted inside the lower cylindrical portion 48 of the fixed joint 42 shown in FIG. 2 to bond the inner surface of the lower cylindrical portion 48 and the outer surface of the pipe 12. And after locking the collar part 44 on the floor of the periphery of the through-hole 14, the screw 52 is inserted in the screw hole 50, the screw 52 is struck against the floor 18, and the fixed joint 42 is fixed.

  Then, the drainage facility 24 shown in FIG. Further, as shown in FIG. 2, the equipment tube 16 is inserted into the deodorization socket 54 and the upper cylindrical portion 46 while the deodorization socket 54 is fitted on the upper portion of the upper cylindrical portion 46, and the deodorization socket 54 is attached to the equipment tube 16. Fix it. Thereby, the installation pipe | tube 16 and the piping 12 are connected via the fixed coupling 42, and piping work is complete | finished.

  In this way, the pipe 12 that is partially bent is used, and the net 56 is attached to the tip of the pipe 12 in advance. Thereby, even after construction of the floor 18, if the through hole 14 is drilled and the lifting jig 60 is passed therethrough, the pipe 12 can be easily pulled up from the floor and connected to the equipment pipe 16 on the floor. . For this reason, it is excellent in workability | operativity and leads to shortening of work time.

  In addition, as shown in FIG. 6, even if the position of the through hole 14 is deviated from the position of the distal end portion of the pipe 12, if the net 56 is expanded widely, a part of the net 56 is below the through hole 14. Located in. For this reason, when the lifting jig 60 is passed through the through hole 14 and the net 56 is pulled up, the pipe 12 bends not only in the vertical direction but also in the horizontal direction as shown in FIG. Raised on the street floor. Therefore, by using the pipe 12 that is partially bent, the net 56 is widely expanded and disposed below the through hole 14, so that the net 56 absorbs the positional deviation between the through hole 14 and the tip end of the pipe 12. Can do.

  Further, an adhesive or the like is used to connect the pipe 12 and the equipment pipe 16, and even if the solvent is volatilized from the adhesive or the like, the work can be ventilated on the floor. For this reason, the working environment is improved.

  In FIG. 1, a hose formed of a soft material and having a smooth inner surface and outer surface is used for the flexible tube 28. Alternatively, a tube having irregularities formed on the outer peripheral surface may be used. A corrugated tube made of polyethylene resin or the like and having a smooth inner surface is used for the tube having the irregularities formed on the outer peripheral surface.

  In FIG. 2, the pipe 12 is fitted inside the lower cylindrical part 48, but the pipe 12 can be fitted outside the lower cylindrical part 48. In this case, the outer diameter of the lower cylindrical portion 48 is set to be the same as or substantially the same as the inner diameter of the pipe 12.

  A piping structure 10 according to another embodiment of the present invention shown in FIG. 8 is substantially the same as the piping structure 10 shown in FIG. 1, but the piping and the fixed joint are different. Since the other parts are the same as those of the piping structure 10 shown in the embodiment of FIG. 1, the same numbers are assigned to the common parts, and the explanation of the numbers is omitted.

  The pipe 62 includes the second straight pipe 30 and the flexible pipe 28. The flexible tube 28 is linearly connected by the second straight tube 30 and the socket 34, and the flexible tube 28 extends in a direction parallel to the floor 18, or extends while being inclined upward toward the first straight tube 26. . The second straight pipe 30 is supported by the support fitting 35 and extends parallel or substantially parallel to the floor 18. The length of the pipe 62 in the direction parallel to the floor 18 is set to be the same as or longer than the length in the horizontal direction from the drain header 36 to the through hole 14. The diameter of the pipe 62 is set to be the same as or larger than the diameter of the equipment pipe 16.

  The distal end portion of the pipe 62, that is, the end portion of the flexible tube 28 passes through the through hole 14 and is connected to the facility pipe 16 of the drainage facility 24 by the fixed joint 64.

  As shown in FIG. 9, the fixed joint 64 has a flange portion 44, an upper cylindrical portion 46, and a lower cylindrical portion 66, which are integrally formed.

  The lower cylindrical portion 66 extends downward from the flange portion 44 in the through-hole 14, and the hollow portion of the lower cylindrical portion 48 communicates with the center hole 44a. The outer diameter is set to be the same as or substantially the same as the outer diameter of the first straight pipe 26. The lower cylindrical portion 66 is formed in a bamboo shoot shape, and a plurality of corrugated protrusions 68 are provided on the outer peripheral surface thereof. The corrugated protrusion 68 rises at an obtuse angle from the lower end side of the lower cylindrical portion 66 and rises at a right angle or an acute angle from the upper end side of the lower cylindrical portion 66. The flexible tube 28 is fitted to the outside of the lower cylindrical portion 66, and a SUS band 70 or the like is wound around the outer peripheral surface of the flexible tube 28. Thereby, the lower cylindrical portion 66 is connected to the pipe 62.

  In such a pipe construction method of the pipe structure 10, as shown in FIG. 10, first, the flexible pipe 28 and the second straight pipe 30 are connected by the socket 34 to prepare the pipe 62. Then, the rear end of the pipe 62 is connected to the drain header 36 to which the drain main pipe 40 is connected. A net 56 is attached to the tip of the pipe 62. The pipe 62 is laid so that the tip of the pipe 62 is disposed below the planned position of the drainage facility 24. Then, the net 56 is expanded widely from the tip of the pipe 62.

  Next, the floor 18 is stretched above the pipe 62 and the floor 18 is drilled. If the through hole 14 is formed at the planned position of the drainage facility 24, the tip end of the pipe 62 and the net 56 are positioned under the through hole 14. Then, the lifting jig 60 is passed through the through hole 14 from the floor and hooked on the net 56. When the floor 56 is pulled up in this state, the net 56 is pulled up as shown in FIG. Along with this, the flexible tube 28 of the pipe 62 bends, and the tip of the pipe 62 passes through the through hole 14 and is pulled up on the floor.

  And the front-end | tip part of the piping 62 is cut | disconnected as needed, and the inclination of the piping 62 under a floor is adjusted. After the distal end portion of the pipe 62 is fitted to the outside of the lower cylindrical portion 66 shown in FIG. 9, a SUS band 70 or the like is wound around the outer peripheral surface of the flexible tube 28 to tighten the flexible tube 28. 66. Then, in a state where the flange portion 44 is locked to the floor 18, the screw 52 is inserted into the screw hole 50 of the flange portion 44, and the screw 52 is driven against the floor 18 to fix the fixed joint 64.

  Then, the drainage facility 24 shown in FIG. 8 is disposed on the through hole 14. Further, as shown in FIG. 9, the equipment pipe 16 is inserted into the deodorizing socket 54 and the upper cylindrical portion 46 while the deodorizing socket 54 is fitted on the upper cylindrical portion 46, and the deodorizing socket 54 is inserted into the upper cylindrical portion 46. Secure to the top of the. Thereby, the installation pipe | tube 16 and the piping 62 are connected via the fixed coupling 64, and piping work is complete | finished.

  In FIG. 9, the pipe 62 is fitted outside the lower cylindrical portion 66, but the pipe 62 can be fitted inside the lower cylindrical portion 66. In this case, the inner diameter of the lower cylindrical portion 66 is set to be the same as or substantially the same as the outer diameter of the pipe 62.

  Further, in FIG. 8, the flexible tube 28 using a hose is used for the pipe 62. However, as shown in FIG. 14, the flexible pipe using a pipe having an uneven surface on the outer peripheral surface similar to the above as shown in FIG. 72 can also be used. In this case, a fixed joint 74 shown in FIG. 12 is used instead of the fixed joint 64 shown in FIG.

  The fixed joint 74 has a main body 75. The main body 75 includes a first member 76 and a second member 78, and each member 76, 78 has a half ring shape. As shown in FIG. 13, a groove 86 extending in the circumferential direction is provided on the inner peripheral surface 80 of each member 76, 78, and a water stop material 88 or the like is attached to the groove 86. Each member 76, 78 has a projecting first engaging portion 82 on one end face, and a recessed second engaging portion 84 on the other end face. A screw hole 50 is provided through each member 76 and 78.

  As shown in FIG. 12, the first engagement portion 82 of the first member 76 is fitted into the second engagement portion 84 of the second member 78, and the first engagement portion 82 of the second member 78 is engaged with the first member 76. The main body 75 is formed by fitting the second engaging portion 84. The main body 75 has a ring shape having a center hole 90. As shown in FIG. 14, the outer diameter of the main body 75 is set larger than the diameter of the through hole 14, the diameter of the center hole 90 is larger than the diameter of the concave portion 92 of the flexible tube 72, and the convex portion of the flexible tube 72. It is set smaller than the diameter of 94.

  When this fixed joint 74 is used, the distal end portion of the flexible tube 72 is passed through the through hole 14 and pulled up on the floor, and the concave portion 92 is sandwiched between the first member 76 and the second member 78. Then, as shown in FIG. 12, the first engagement portion is fitted into the second engagement portion 84 to couple the first member 76 and the second member 78 together. As a result, as shown in FIG. 14, the pipe 62 passes through the center hole 90, and the inner edge portion 93 is sandwiched between two adjacent convex portions 94. As a result, the inner edge portion 93 is connected to the pipe 62.

  Since the main body 75 attached to the pipe 62 is larger than the through hole 14, the main body 75 is fixed on the floor around the periphery of the through hole 14, thereby preventing the pipe 62 from falling. Then, the screw 52 is inserted into the screw hole 50 of the flange portion 44 and the screw 52 is driven against the floor 18. Thereby, the piping 62 pulled up from under the floor to the floor can be fixed on the floor. Then, the deodorizing socket 54 is fitted to the tip of the pipe 62, and the equipment pipe 16 is inserted into the deodorizing socket 54 and the pipe 62. Thereby, the pipe 62 is connected to the equipment pipe 16.

  15 is substantially the same as the piping structure 10 shown in FIG. 1, but the piping is different. Since the other portions are the same as those of the piping structure 10 shown in FIG. 1 embodiment, the same numbers are assigned to the common portions of the piping structure 10 and the description of the numbers is omitted.

  The pipe 100 includes a first straight pipe 26, an expansion / contraction rotary joint 102, a flexible pipe 28, and a second straight pipe 30. The expansion / contraction rotation joint 102 includes an expansion / contraction portion 104 and a rotation portion 106. The expansion / contraction part 104 expands / contracts its length in the axial direction, and the rotation part 106 rotates around the axis.

  The first straight pipe 26 is connected to the telescopic rotary joint 102 at a right angle by an elbow 32, and the first straight pipe 26 extends at a right angle or a substantially right angle with respect to the floor 18. The expansion / contraction rotary joint 102 is linearly connected to the flexible pipe 72 by the socket 34, the flexible pipe 72 is linearly connected to the second straight pipe 30 by the socket 34, and the second straight pipe 30 is connected to the floor 18. Extending in parallel. The expansion / contraction rotary joint 102 and the flexible tube 72 extend parallel to the floor 18 or extend while inclining upward toward the first straight tube 26 side. The length of the pipe 100 in the direction parallel to the floor 18 is set to be the same as or shorter than the length in the horizontal direction from the drain header 36 to the through hole 14. The diameter of the pipe 100 is set to be the same as or larger than the diameter of the equipment pipe 16.

  When the pipe structure 10 using such a pipe 100 is formed, if a net 56 is attached to the tip of the pipe 100 as shown in FIG. 16, as shown in FIGS. Since it is similarly piped, its detailed description is omitted.

  In this case, the flexible tube 28 can be bent in the vertical direction as indicated by an arrow 108 to pull up the tip of the pipe 100 or to adjust the inclination of the pipe 100. Further, the length of the pipe 100 can be expanded and contracted by the expansion / contraction part 104 of the expansion / contraction rotary joint 102 as indicated by an arrow 110, so that the position of the tip of the pipe 100 can be matched with the position of the through hole 14. The rotation portion 106 of the expansion joint 102 is rotated with respect to the second straight pipe 30 of the first straight pipe 26 as indicated by the arrow 112, and the position of the tip of the pipe 100 is adjusted to the position of the through hole 14. Can do. For this reason, if the flexible tube 72 and the expansion / contraction rotary joint 102 are used for the piping 100, the shift | offset | difference of the position of the front-end | tip part of the piping 100 and the position of the through-hole 14 can be absorbed.

  In addition, although the expansion / contraction rotary joint 102 having the expansion / contraction part 104 and the rotation part 106 is used, instead of this, the expansion part 106 without the rotation part 106 and having the expansion / contraction part 104 can also be used.

  Further, although the flexible tube 28 is used for the pipe 100 in FIG. 15, the flexible tube 72 can also be used for the pipe 100.

  A piping structure 10 according to another embodiment of the present invention shown in FIG. 17 is substantially the same as the piping structure 10 shown in FIG. 8, but the piping is different. Since the other portions are the same as the piping structure 10 shown in the embodiment of FIG. 8, the same numbers are assigned to the common portions, and the description of the numbers is omitted.

  The pipe 96 is formed by the flexible tube 28. The diameter of the pipe 96 is set equal to or larger than the diameter of the equipment pipe 16, and the length thereof is set longer than the length from the drain header 36 to the through hole 14. The rear end of the pipe 96 is connected to the drainage header 36 and the like. The distal end portion of the pipe 96 passes through the through hole 14 and is connected to the equipment pipe 16 of the drainage equipment 24 by a fixed joint 64.

  In the construction of such a piping structure 10, if the net 56 is attached to the tip of the piping 96, as shown in FIGS. 8 to 11, piping is performed in the same manner as in the embodiment of FIG. To do.

  In FIG. 17, the flexible pipe 28 is used for the pipe 96, but the flexible pipe 72 can also be used for the pipe 96. In this case, a fixed joint 74 shown in FIG. 12 is used instead of the fixed joint 64 shown in FIG.

  In FIG. 17, a pipe 96 is connected to the equipment pipe 16 connected to the drainage equipment 24, and this pipe 96 is used as a drain pipe. On the other hand, instead of the drainage equipment 24, the water supply equipment 114 or the hot water supply equipment shown in FIG. 18A is used, and the pipe 96 is connected to the equipment pipe 116 connected to the water supply equipment 114 or hot water supply equipment. It can also be used as a tube. In this case, similarly to FIGS. 10 and 11, the net 56 is attached to the distal end portion of the pipe 96, and the distal end portion of the pipe 96 is passed through the through hole 14 and pulled up onto the floor. Then, the pipe 96 and the equipment pipe 116 are connected by the fixed joint 120 using the fixed joint 120 in which the flange 122 and the lower cylindrical part 124 are integrally formed as shown in FIG.

  In the embodiment shown in FIGS. 1 and 15, the pipes 12 and 100 are fixed by the fixed joint 42, but may be fixed by the fixed joint 126 shown in FIG. 19. The fixed joint 126 has a ring shape having a central hole 128 and has a screw hole 50. The outer diameter of the fixed joint 126 is set larger than the diameter of the through hole 14, and the screw portion 130 is provided on the inner peripheral surface of the center hole 128. Further, a screw portion 132 is provided on the inner peripheral surface of the deodorant socket 54.

  When the fixed joint 74 is used, first, a threaded portion 134 that is screwed into the threaded portions 130 and 132 is formed at the distal ends of the pipes 12 and 100. Then, the distal ends of the pipes 12 and 100 are fitted into the center hole 128, the screw part 134 is fitted into the screw part 130, and the fixed joint 126 is attached to the pipes 12 and 100. Since the fixed joint 126 is larger than the through hole 14, the fixed joint 126 is fixed on the floor around the through hole 14, and the pipes 12 and 100 are prevented from dropping. Then, the screw 52 is inserted into the screw hole 50, and the screw 52 is driven against the floor 18 to fix the fixed joint 126 on the floor. Then, the deodorant socket 54 is fitted to the ends of the pipes 12 and 100, and the screw portion 132 is fitted to the screw portion 134, so that the deodorant socket 54 is fixed to the tips of the pipes 12 and 100. Finally, if the equipment pipe 16 is passed through the hole of the deodorant socket 54, the pipes 12 and 100 are connected to the equipment pipe 16.

  In all of the above-described embodiments, a rod-like member bent at an acute angle is used for the lifting jig 60 and a net 56 or the like that is hooked on the pulling jig 60 by the lifting jig 60 is used. The tool and the traction member are not limited to this. The lifting jig extends from the floor through the through-hole to the floor and is connected to the pulling member under the floor by an operation on the floor. The pulling member is connected to the lifting jig under the floor and is lifted by the lifting jig. Anything can be used if it can be raised. For example, a string with a magnet attached to the lifting jig can be used, and a magnet can be used for the pulling member. In this case, if the magnet of the lifting jig is passed through the through-hole 14 and hung under the floor, attached to the magnet of the pulling member, and the string is lifted up, the pulling member and the pipe are pulled up on the floor accordingly.

  Further, the specific numerical values of the angles and dimensions given above are merely examples, and can be appropriately changed as necessary.

It is an illustration figure which shows the piping structure of one Example of this invention. It is sectional drawing which shows the state which connected piping to the equipment pipe via the fixed joint. It is an illustration figure which shows the state which attached | installed the net | network at the front-end | tip part of piping, and laid piping under the floor. It is an illustration figure which shows the state which attached | installed the net | network at the front-end | tip part of piping, and laid piping under the floor. It is an illustration figure which shows the state which hooked on the net with the lifting jig | tool and pulled up piping through the through-hole. It is an illustration figure which shows the state which attached | installed the net | network at the front-end | tip part of piping, and laid piping under the floor. It is an illustration figure which shows the state which match | combined the front-end | tip part of piping of FIG. 6 with the position of the through-hole. It is an illustration figure which shows the piping structure of another Example of this invention. It is sectional drawing which shows the state which connected piping to the equipment pipe via the fixed joint. It is an illustration figure which shows the state which attached | installed the net | network at the front-end | tip part of piping, and laid piping under the floor. It is an illustration figure which shows the state which hooked on the net with the lifting jig | tool and pulled up piping through the through-hole. It is a perspective view which shows the fixed joint used for the piping structure of another Example of this invention. It is a perspective view which shows the 1st member or 2nd member used for the fixed joint of FIG. It is sectional drawing which shows a part of piping structure of another Example of this invention. It is an illustration figure which shows the piping structure of another Example of this invention. It is an illustration figure which shows the state which attached | installed the net | network at the front-end | tip part of piping, and laid piping under the floor. It is an illustration figure which shows the piping structure of another Example of this invention. (A) is an illustration figure which shows the piping structure of another Example of this invention, (B) is sectional drawing which shows the state which connected piping to the installation pipe | tube via the fixed joint. It is sectional drawing which shows the piping structure of another Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Piping structure 12, 62, 96, 100 ... Piping 14 ... Through-hole 16, 116 ... Equipment pipe 18 ... Floor 56 ... Net 60 ... Lifting jig 74 ... Fixed joint 75 ... Main body 90 ... Center hole 93 ... Inner edge

Claims (3)

Piping laid under the floor and bent at least partially,
With through-holes on the floor, and equipment pipes laid on the floor,
A piping structure in which the piping is pulled up from the upper side of the floor through the through hole onto the floor and connected to the equipment pipe on the floor. A fixed joint for fixing a pipe extending from the bottom of the floor through the through hole to the floor,
A ring-shaped main body having a center hole and having an outer diameter larger than that of the through hole; and an inner edge provided on the main body and surrounding the center hole,
A fixed joint, wherein the main body is fixed on the floor, and the pipe is connected to the inner edge. (a) attaching a traction member to the tip of a pipe that can be bent at least partially, and laying the pipe under the floor;
(b) drilling a through hole in the floor stretched above the pipe;
(c) a step of pulling up the piping onto the floor by passing a pulling jig from the floor through the through hole and pulling up the pulling member with the lifting jig;
(d) attaching a fixed joint to the pipe pulled up on the floor; and
(e) A piping method including the step of connecting the pipe to an equipment pipe laid on the floor.

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