JP2006307962A - Pipe fixing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pipe fixing device capable of holding a sleeve in which a water passing pipe rising over a floor board from an underfloor space is inserted and holding and sealing the sleeve by reduced number of parts securely and having excellent construction property and high reliability. <P>SOLUTION: The sleeve 3 rising from a lower part to an upper part of a through hole 2 of the floor board 1 has a bellows shape in which recessed parts 3b and projecting parts 3c are alternately formed. The pipe fixing device A capable of holding the sleeve 3 has a fixing member 10 fixed in the through hole 2 of the floor board 1 and forming a storage chamber 17, a supporting member 20 stored in the storage chamber 17 of the fixing member 10 and forming an insertion hole 21 in which the sleeve 3 is inserted, a seal member 30 mounted on the supporting member 20 and forming an insertion hole 31 in which the sleeve 3 is inserted, and a protection member 40 mounted on the fixing member 10 and fixing the supporting member 20 and the seal member 30 in the storage chamber 17. The seal member 30 is locked in the recessed part 3b of the sleeve 3 when stopping travel of the sleeve 3 and adheres closely to it. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a pipe fixture that holds a sheath pipe through which a water pipe that has been inserted from a subfloor space into a through-hole of a floor board and is raised above the floor board is inserted.

  In general, when installing water supply and hot water supply pipes to water supply equipment such as wash basins, sinks, bathrooms, toilets, washing machines, etc. in apartment buildings, detached houses, etc. A bellows-like sheath tube is arranged in an octopus foot shape between the header and the water supply device, and a water or hot water flow tube is inserted into this sheath tube during the construction work, and the header and the water supply device There is a piping method that connects with water through a water pipe. For example, a water pipe is inserted into the sheath pipe, the water pipe is raised from the underfloor space to the upper part of the floor plate, connected to a joint member disposed at the upper part of the floor plate, and water or hot water is supplied from the joint member to the water supply device There is a configuration one. In this piping method, a pipe fixing tool that holds a sheath pipe through which a water passage pipe is inserted is used.

Briefly describing this Patent Document 1, a pipe fixture has a fixing member attached to a floor plate portion for fixing a flow rate adjusting mechanism such as a stop cock above the floor plate portion, and a downstream side connected to a joint member. A relay pipe covering the connecting portion of the resin pipe, and a resin pipe covering pipe having an upstream end connected to the fixing member and a downstream end connected to the upstream end of the relay pipe and covering the resin pipe. An O-ring is provided on the peripheral surface, and a sheath tube holder is screwed to the lower part of the fixing member. The O-ring provided on the relay pipe is positioned below the floor plate from the outer peripheral surface of the resin pipe where water drops are located above the floor plate when water leaks from the connecting portion between the stop cock and the resin pipe. The resin pipe is supported so that it does not move due to vibration or the like. The sheath tube holder is formed with a plurality of locking claws, and the locking claws hold the upstream side of the bellows-shaped sheath tube.
JP 2003-13473 A

  In Patent Document 1, when water leaks from the connecting portion between the stop cock and the resin pipe, the water pipe is prevented from transmitting to the lower part of the floor plate portion and the resin pipe does not move on the inner peripheral surface of the relay pipe. An O-ring is provided for this purpose. The sheath tube is held by a locking claw formed on the sheath tube holder. As described above, the piping fixture of Patent Document 1 needs to use different articles for preventing leakage of water leaked from the connecting portion between the water stop cock and the resin pipe to the floor and holding the sheath tube. The number of points increased, the workability during assembly was poor, and the production cost increased.

  The present invention has been made paying attention to such problems existing in the prior art. The purpose of the present invention is to provide a water pipe that is inserted from the under floor space into the through hole of the floor board and is raised above the floor board. In a pipe fixing tool for holding a inserted sheath pipe, the sheath pipe is securely held and sealed with a small number of parts, and a pipe fixing tool having high workability and high reliability is provided.

  In order to achieve the above object, according to the first aspect of the present invention, in the sheath tube which is inserted into the through-hole formed in the floor plate from the lower part and raised up, the concave part and the convex part are alternately formed on the outer peripheral surface. The pipe fixing tool having a bellows-like shape and capable of holding the sheath pipe includes a fixing member that is fixed to the through hole of the floor plate and has a storage chamber formed therein, and is accommodated in the storage chamber of the fixing member and has a water pipe. A support member in which an insertion hole for inserting the inserted sheath tube is formed, a seal member in which an insertion hole is inserted in the upper or lower portion of the support member and in which the sheath tube is inserted, and a fixing member is attached and supported. And a protective member for fixing the member and the seal member to the storage chamber, and the seal member is engaged with and closely adhered to the recess of the sheath tube when the movement of the sheath tube is stopped. is there.

  According to a second aspect of the present invention, in the pipe fixture according to the first aspect, the support member is formed with a relief portion at a position facing the seal member.

  According to claim 1 of the present invention, when the movement of the sheath pipe inserted through the through hole of the floor plate is stopped, the seal member of the pipe fixture is locked in close contact with the recess of the sheath pipe, and the seal member is made of the sheath pipe. Two functions, a holding function to the pipe fixing tool and a sealing function between the sheath pipe and the pipe fixing tool, are provided, and workability and reliability are greatly improved.

  According to the second aspect of the present invention, when the sheath tube passes through the insertion hole of the pipe fixing tool, the seal member bends to the escape portion, and the sheath pipe can be smoothly inserted into the pipe fixing tool.

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

  In the present invention, the pipe fixture A is arranged near a wash basin, a sink, a bathroom, a toilet, etc., where a water supply device such as a mixing faucet is provided in a house, as shown in FIG. The floor plate 1 is fixed so as to rise upward from the through hole 2 formed in the floor plate 1. A bellows-shaped sheath tube 3 is arranged at the lower part of the floor plate 1 from a header (not shown) toward the lower portion of the through hole 2. The sheath tube 3 and the water pipe 4 inserted into the inside of the sheath tube 3 are Then, the through hole 2 is inserted and raised to the upper part of the floor board 1. Further, a joint member (not shown) such as a pipe joint is coupled to the tip of the water pipe 4, and the water pipe 4 is connected to the water supply device via this joint member. The pipe fixing tool A is fixed to the periphery of the through hole 2 of the floor board 1 and holds the sheath pipe 3 rising from the floor board 1 and prevents the drop of water that has been transmitted around the outer circumference of the sheath pipe 3 due to water leakage or the like from dropping under the floor. It is.

  The water pipe 4 supplies water or hot water from the header to the water supply device, and is formed of a crosslinked polyethylene pipe made of a synthetic resin, a polybutene pipe, or the like that can be easily bent. It is connected to the header arranged at the lower part of the floor board 1, and the downstream end is connected to the water supply device via a joint member such as a pipe joint. The water conduit 4 is covered with the sheath tube 3 and protected from the outside by being inserted into the insertion hole 3a of the bellows-shaped sheath tube 3.

  As shown in FIGS. 2 and 3, the pipe fixture A includes a fixing member 10 that is fixed to the periphery of the through hole 2 formed in the floor plate 1, and a sheath tube 3 that is accommodated inside the fixing member 10. A support member 20 for always supporting in the center, a seal member 30 mounted on the upper portion of the support member 20, and a support member 20 mounted on the fixed member 10 and preventing the support member 20 and the seal member 30 from coming off from the fixed member 10. And a protective member 40.

  The fixing member 10 is substantially disk-shaped, is disposed on the upper surface of the floor board 1, and has a flange portion 11 provided with a first insertion hole 13 penetrating vertically, and a through-hole of the floor board 1 protruding downward from the flange portion 11. 2 and an annular upper protrusion 15 protruding upward from the flange portion 11 and having a slightly larger diameter than the lower protrusion 14, and an outer periphery of the upper protrusion 15. Is formed with a male screw 16. The fixing member 10 is formed with a storage chamber 17 for storing the support member 20. The fixing member 10 has a plurality of holes formed in the flange portion 11 in a state in which the lower projecting portion 14 is inserted into the through hole 2 after the sealing packing 18 is disposed below the flange portion 11. The screws 5 are fixed to the floor plate 1 by screwing the screws 5 from the upper portion of the floor plate 1 to the (three in this embodiment) screw holes 12.

  The support member 20 is made of synthetic resin, and is formed by combining cylindrical bodies having different diameters. The cylindrical small-diameter portion 22 having a diameter substantially the same as the inner diameter of the storage chamber 17 of the fixing member 10, and the small-diameter portion A large-diameter portion 24 is formed on the upper portion 22 and has a diameter larger than that of the small-diameter portion 22, and a second insertion hole 21 penetrating vertically is formed at the center. The small diameter portion 22 has a plurality of thin plate-like supports 23 so that the sheath tube 3 is always positioned at the center of the second insertion hole 21 when the sheath tube 3 is inserted into the second insertion hole 21. Is formed to protrude inward. An annular relief portion 22 a is formed on the upper surface of the small diameter portion 22. The escape portion 22 a is formed at a position facing the seal member 30 in order to bend the seal member 30 when the sheath tube 3 passes through the second insertion hole 21.

  The seal member 30 is made of, for example, an elastic body such as rubber, and is formed in a thin plate shape with a third insertion hole 31 provided in the center, and is mounted above the support member 10. In this embodiment, the seal member is mounted above the support member, but the seal member 30 may be mounted below the support member. In this case, it is preferable to form the relief portion on the bottom surface of the support member so that the seal member bends to the relief portion. The sheath tube 3 has a bellows shape, and the recesses 3b and the projections 3c are alternately formed along the longitudinal direction of the outer peripheral surface. The sheath tube 3 is located above or below the third insertion hole 31 of the seal member 30. In the moving state, as shown in FIG. 4, the inner peripheral surface of the seal member 30 gets over the convex portion 3a from the concave portion 3b. In the state where the movement of the sheath tube 3 is stopped, as shown in FIG. 3, the inner peripheral surface of the seal member 30 gets over the convex portion 3c and is elastically engaged with the concave portion 3b. Is held so as not to easily come out of the pipe fixture A. In addition, the inner peripheral surface of the seal member 30 is pressed against the recess 3b of the sheath tube 3 so as to be in watertight contact with each other. For example, in a joint member such as a pipe joint connected to the tip of the water supply device or the water pipe 4, water leaks. Even if water droplets are transmitted to the outer periphery of the sheath tube 3 and fall on the seal member 30, the water droplets are blocked by the seal member 30 and do not fall below the seal member 30. Water is prevented from entering.

  The protective member 40 includes a first cylindrical portion 41 on the lower side and a second cylindrical portion 42 on the upper side, and a fourth insertion hole 43 penetrating vertically is formed inside. A female screw 45 is formed on the inner peripheral surface of the first cylinder portion 41, and the female screw 45 is screwed into a male screw 16 formed on the outer peripheral surface of the upper protrusion 15 of the fixing member 10. The protective member 40 is decorated with plating, coloring, or the like.

Below, the procedure in which the sheath pipe 3 is inserted into the through-hole 2 from the lower part of the floor board 1 and is held by the pipe fixture A will be described.
First, the pipe fixing tool A stores the support member 20 in the storage chamber 17 of the fixing member 10, and the seal member 30 is mounted on the upper portion of the support member 20. In this state, the female screw 44 of the protection member 40 is screwed into the male screw 16 of the fixing member 10, and the support member 20 and the seal member 30 are fixed to the fixing member 10, and the pipe fixture A is assembled.

  Next, after the packing 18 is disposed below the flange portion 11 of the fixing member 10, each screw hole 12 of the flange portion 11 is inserted with the lower protrusion 14 of the fixing member 10 inserted into the through hole 2. On the other hand, screws 5 are respectively screwed from the upper part of the floor board 1 to fix the pipe fixture A to the floor board 1.

  Next, the sheath tube 3 is inserted into the through-hole 2 from the lower part of the floor plate 1, and the sheath tube 3 is inserted into the respective insertion holes 13, 21, 31, 43 of the pipe fixture A. When the sheath tube 3 is moved upward or downward, as shown in FIG. 4, the seal member 30 fixed inside the pipe fixture A is bent to the relief portion 22 a of the support member 20, The inner peripheral surface gets over the convex portion 3 c from the concave portion 3 b of the sheath tube 3. When the movement of the sheath tube 3 is stopped, the sealing member 30 is elastically engaged with the recess 3b of the sheath tube 3 as shown in FIG. It is held so as not to easily escape from A. Moreover, the inner peripheral surface of the seal member 30 is pressed against the concave portion 3b of the sheath tube 3 so as to be in watertight contact, so that, for example, a joint such as a water joint or a pipe joint connected to the tip of the water conduit 4 Even if water leakage occurs in the member and the water droplet is transmitted to the outer periphery of the sheath tube 3 and falls to the seal member 30, the water droplet is blocked by the seal member 30 and does not fall below the seal member 30. Water does not enter the lower part of 1.

  And after raising the water pipe 4 inserted in the insertion hole 3a of the sheath pipe 3 to the upper part of the floor board 1, a joint member, such as a pipe joint, is couple | bonded with the front-end | tip of this water pipe 4, and this joint member is passed through. Connect to a water supply.

  As described above, when the pipe fixture of the present invention stops the movement of the sheath pipe inserted through the through hole of the floor plate, the seal member of the pipe fixture is elastically engaged with the concave portion of the sheath pipe, and the seal member The inner peripheral surface of the sleeve is brought into close contact with the concave portion of the sheath tube, thereby having two functions of holding the sheath tube to the pipe fixing tool and sealing function of the sheath pipe and the pipe fixing tool. Preparation and workability and reliability are greatly improved.

It is explanatory drawing which shows the state which attached the piping fixing tool of this invention to the floor board. It is a disassembled perspective view of a piping fixture. It is explanatory drawing which shows the state which has stopped the movement of a sheath pipe with respect to the piping fixture. It is explanatory drawing which shows the state which is moving the sheath pipe with respect to a piping fixing tool.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1: Floor board 2: Through-hole 3: Sheath pipe 3b: Concave part 3c: Convex part 10: Fixing member 20: Support member 22a: Relief part 21: 2nd insertion hole 30: Seal member 31: 3rd insertion hole 40: Protection member A: Piping fixture

Claims (2)

  The sheath pipe that is inserted into the through-hole formed in the floor plate from the bottom and raised up is a bellows shape in which concave and convex portions are alternately formed on the outer peripheral surface, and pipe fixing that can hold the sheath pipe The tool includes a fixing member that is fixed to the through hole of the floor plate and has a receiving chamber formed therein, and a support member that has an insertion hole that is inserted into the housing tube that is received in the receiving chamber of the fixing member and through which the water pipe is inserted. A seal member that is attached to the upper or lower portion of the support member and has an insertion hole through which the sheath tube is inserted, and a protective member that is attached to the fixing member and fixes the support member and the seal member to the storage chamber. The pipe fixture according to claim 1, wherein the seal member is locked in close contact with the concave portion of the sheath pipe when the movement of the sheath pipe is stopped. The piping fixture according to claim 1, wherein an escape portion is formed in the support member at a position facing the seal member.

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