JP4713910B2 - Piping fixture - Google Patents

Description

  The present invention relates to a pipe fixture that maintains a connection state between a water pipe that is inserted from a subfloor space into a through hole of a floor board and is raised on an upper part of the floor board, and a joint member that is disposed on the upper part of the floor board.

  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 placed 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. By this piping method, 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 board, and connected to a joint member arranged at the upper part of the floor board, and water or hot water is supplied from this joint member to the water supply device. As a structure to be supplied, there is one of Patent Document 1 previously filed by the present applicant.

Briefly describing Patent Document 1, in the connection structure between the water pipe and the joint member configured to supply water to each water supply device by the water pipe made of synthetic resin disposed at the lower part of the floor board of the building, A guide cylinder for inserting the water pipe is attached, the guide cylinder is a fixing member disposed on the upper surface of the floor plate, a cylindrical member that is fitted to the fixing member from above and coupled, and the inside of the fixing member And a support member for supporting the water pipe and a packing attached to the upper part of the support member for preventing water leakage to the lower part of the floor board. Moreover, a pipe joint is accommodated in the upper part of a guide cylinder, a water flow pipe is connected to this pipe joint, and the joint member which has a water stop function is connected to the other end of a pipe joint.
Japanese Patent Application No. 2004-146

  In patent document 1, when connecting a water pipe and a pipe joint, it is necessary to raise a water pipe to the upper part of a floor board so that the connection operation may be performed easily. In this case, since the support member is not firmly fixed to the inside of the fixing member, when the water pipe is pulled up, the support member is shifted in the pulling direction, that is, toward the upper portion of the floor board. Therefore, the support member must be pressed down with one hand, or after the connection work between the water pipe and the pipe joint is completed, the support member must be fixed again inside the fixing member. It was time consuming.

  The present invention has been made paying attention to such problems existing in the prior art, and its purpose is to insert a through-hole formed in the floor plate from the lower part into a water pipe that is raised at the upper part. And a joint member arranged at the upper part of the floor plate are connected, and in the pipe fixture that maintains this connection state, the support member moves even when the water pipe is pulled up to connect the pipe joint and the water stop cock. It is to provide a plumbing fixture that never happens.

In order to achieve the above-mentioned object, the invention described in claim 1 includes a water pipe that is inserted into a through-hole formed in a floor board from the lower part and is raised from the upper part, and a joint member disposed on the upper part of the floor board. Are connected at the upper part of the floor plate, and a pipe fixing tool that maintains this connection state is a fixing member that is fixed to the through hole of the floor plate, a support member that is accommodated in the fixing member and supports the water pipe, A protective member that holds the joint member and covers an outer periphery of the water pipe, and the support member includes a movement restricting unit that restricts the vertical movement from the fixing member when the water pipe is started up . Is.

According to a second aspect of the present invention, in the invention according to the first aspect, the movement restricting means includes a locking protrusion formed on one of the fixing member and the supporting member, and a locking groove formed on the other. The engagement of the locking protrusion and the locking groove restricts the movement of the support member in the vertical direction .

  According to a third aspect, in the invention according to the first or second aspect, the support member is formed with a groove part into which a tool can be inserted.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the water flow pipe is covered with a sheath pipe at a lower portion of the floor plate, and a retaining portion for holding the sheath pipe is formed on the support member. Is.

According to the first aspect of the present invention, the support member is provided with a movement restricting means for restricting the vertical movement from the fixed member, so that the support member is fixed so as not to be easily detached from the fixed member, and the attachment position of the joint member Even if the water pipe is pulled up by adjusting the height of the water pipe, it will not be lifted, and it is not necessary to re-fix the support member to the fixing member after the water pipe is pulled up as in the prior art.

According to a second aspect of the present invention, the movement restricting means includes a locking projection formed on one of the fixing member and the support member and a locking groove formed on the other, and the locking projection and the locking groove are engaged. By combining , since the movement of the support member in the vertical direction is restricted, the support member can be easily fixed to the fixing member by anyone.

  According to the third aspect of the present invention, since the groove portion into which the tool can be inserted is formed in the support member, the support member can be easily rotated by using a tool such as a screwdriver, and the fixing member and the support member can be easily formed. Can be fixed to.

  In Claim 4, since the water flow pipe is covered with the sheath pipe at the lower part of the floor plate, and the retaining member is formed on the support member to hold the sheath pipe, the pipe fixture also serves to hold the sheath pipe. There is no need to prepare another article for holding the tube, and the number of parts can be reduced to reduce the cost.

  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 part of the through hole 2, and the water pipe 4 inserted into the inside of the sheath tube 3 passes through the through hole 2. Then, it is raised on the top of the floor board 1. Further, a pipe joint 50 is coupled to the tip of the water pipe 4, and the pipe joint 50 is connected to the joint member 60 by a fixing bracket 70 at the upper part of the floor plate 1. The pipe fixture A is fixed to the periphery of the through hole 2 of the floor board 1, and the water pipe 4 and the pipe joint 50 rising from the floor board 1 are covered with the pipe fixture A and are not exposed to the outside.

  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, a polybutene pipe or the like made of a synthetic resin that can be easily bent. The downstream end of the floor plate 1 is connected to a header, and the downstream end is connected to the joint member 60 via a pipe joint 50. The water pipe 4 is covered with the sheath pipe 3 and protected from the outside by being inserted into the insertion hole 3a of the bellows-shaped sheath pipe 3 previously disposed in the lower part of the floor board 1. The water pipe 4 The downstream side is exposed from the sheath tube 3, rises vertically from the through hole 2 of the floor plate 1 toward the upper portion, and is exposed from the upper end of the pipe fixture A at the upper portion of the floor plate 1.

  As shown in FIGS. 1 and 2, the pipe fixing tool A includes a fixing member 10 fixed to the periphery of the through hole 2 formed in the floor plate 1, and a water pipe 4 accommodated in the fixing member 10. A supporting member 20 for supporting, a packing 30 for preventing water leakage to the lower part of the floor board 1, and a protective member 40 that is attached to the fixing member 10 and protects the outer periphery of the water pipe 4 are fixed. The member 10 and the support member 20 are provided with movement restriction means for restricting the movement of the support member 20 in the vertical direction.

  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, and a plurality of locking projections 18 for restricting the vertical movement of the support member 20 are provided on the inner peripheral surface of the storage chamber 17. (2 in this embodiment) are formed. The locking protrusion 18 is formed in an arc shape, and a restricting piece 18a protrudes downward at one end thereof. The fixing member 10 has a pair of holes formed in the flange portion 11 in a state in which the sealing protrusion 19 is disposed below the flange portion 11 and the lower protrusion 14 is inserted into the through hole 2. Screws 5 and 5 are respectively screwed into the screw holes 12 and 12 from the top of the floor plate 1 to be fixed to the floor plate 1.

  The support member 20 is made of a synthetic resin, and includes a first divided body 20a formed in a substantially semi-disc shape and a second divided body 20b formed in a substantially semi-disk shape, and both divided bodies 20a and 20b are The two combined members 20a and 20b are overlapped from the left and right to form a substantially cylindrical shape. The support member 20 has a second cylindrical shape. An insertion hole 21 is provided. As shown in FIG. 3, the divided bodies 20 a and 20 b include a large-diameter portion 22 having an outer diameter substantially the same as the inner diameter of the upper protrusion 15 of the fixing member 10, and a lower portion with a slightly smaller diameter than the large-diameter portion 22. The small-diameter portion 24 is formed on the upper surface of the large-diameter portion 22. A plurality (two in this embodiment) of convex portions 25 are formed on the outer periphery in the vicinity of the upper end of the small diameter portion 24, and are formed between the convex portion 25 and the large diameter portion 22. A locking groove 26 is formed.

  As shown in FIG. 4, the support member 20 is coupled to the water passage pipe 4 that rises upward from the through hole 2 of the floor plate 1 by moving horizontally from the side, and is connected to the second insertion hole 21. 4 is inserted into the fixing member 10. At this time, the support member 20 inserts a tool such as a screwdriver into the groove portion 23 after inserting the convex portion 25 between the respective locking protrusions 18 formed on the fixing member 10, and locks it with one end of the convex portion 25. By rotating the protrusion 18 until it comes into contact with the restricting piece 18a, the locking protrusion 18 of the fixing member 10 and the locking groove 26 of the support member 20 are engaged, and the support member 20 is moved in the vertical direction. Movement is restricted.

  Further, the support member 20 is for supporting the water pipe 4 so as not to vibrate inside the pipe fixture A, and for holding the sheath pipe 3 at the lower part of the inner peripheral surface thereof. The retaining portion 27 is formed so as to protrude toward the inner peripheral side. 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 inserted into the second insertion hole 21 of the support member 20 from below. Then, the retaining portion 27 gets over the convex portion 3c and is elastically engaged with the concave portion 3b so as not to come out of the pipe fixture A. In addition, although the support member of a present Example integrates two division bodies which consist of a substantially semi-cylindrical type by a connection part, it is good also as a separate body, without couple | bonding a division body.

  The packing 30 is made of an elastic body such as rubber, and is a disk type provided with a third insertion hole 31 in the center. A slit 32 is formed from the inner peripheral edge of the third insertion hole 31 toward the outer peripheral edge. By forming the slit 32, as shown in FIG. 4, the water pipe 4 can be moved from the side in the horizontal direction and coupled to be attached to the upper portion of the support member 20. When the water pipe 4 is inserted into the third insertion hole 31, the packing 30 is pressed against the outer peripheral surface of the water pipe 4 so as to be watertight, and for example, between the water pipe 4 and the pipe joint 50. Even if water leakage occurs and water drops fall on the packing 30, the water drops are blocked by the packing 30 and do not fall below the packing 30, so that water does not enter the lower part of the floor board 1.

  The protective member 40 is composed of a lower cone 41 and an upper body 42, and an accommodation chamber 43 penetrating vertically is formed inside. The cone 41 has an outer diameter that can cover the flange portion 11 of the fixing member 10, and an annular body 44 is formed on the inner peripheral surface thereof as shown in FIG. 1. A female screw 45 that is screwed into a male screw 16 formed on the outer peripheral surface of the upper protrusion 15 of the member 10 is formed. The storage chamber 43 of the protection member 40 has an outer diameter into which the water pipe 4 and the pipe joint 50 are inserted with a margin, and the support member 20 and the packing 30 are overlapped vertically inside the conical body 41. Installed. The protective member 40 is decorated with plating, coloring, or the like.

  The pipe joint 50 is provided with a substantially cylindrical main body 51 to which the tip of the water flow pipe 4 is connected, a nut 56 to be screwed to the main body 51, and a tip of the nut 56. And a retainer 57 for holding the water pipe 4 inserted between them.

  The main body 51 of the pipe joint 50 has a substantially cylindrical shape. A flange 52 and a fitting portion 53 at the tip of the flange 52 are further formed integrally with the top end of the pipe joint 50. Annular grooves 54 and 54 are formed, and sealing members 55 and 55 for sealing are respectively attached to the annular grooves 54 and 54.

  The joint member 60 is provided with a handle 61. By rotating the handle 61, the water stop valve 62 is moved to stop water, hot water supplied from the water pipe 4 to the water supply device, water flow and flow rate adjustment. A flange 64 for mounting the fixing fitting 70 is formed in an annular shape at the tip of the inlet portion 63 opened at one end, and this flange 64 has the same diameter as the flange 52 of the pipe joint 50. It overlaps vertically. In addition, although the joint member of a present Example accommodates the water stop valve in an inside, even if it contains functional parts, such as a non-return valve, a strainer, a pressure regulation valve, and a water hammer prevention valve, not only a water stop valve. Good.

  The fixing metal fitting 70 is used to connect the pipe joint 50 and the joint member 60 with one touch, and is formed by bending a single metal plate having elasticity as shown in FIG. Then, the locking portions 72, 72 bulging outward from both ends of the base portion 71 in a substantially square shape, and the leg portions 73, 73 opened outward in a generally square shape at the tips of the locking portions 72, 72; An insertion portion 74 through which the fitting portion 53 of the pipe joint 50 and the end portion of the joint member 60 are inserted is formed between the both leg portions 73 and 73. From the base 71 to the legs 73, 73, both flanges 52, 64 can be elastically inserted with a vertical width corresponding to the thickness of the two flanges 52, 64 of the pipe joint 50 and the joint member 60 overlapped. A horizontally long slit 75 is opened, and the fixture 70 can be elastically deformed in the direction of expansion and contraction with the base 71 as a fulcrum. The material of the fixing metal 70 is preferably a metal plate having elasticity, but may be a synthetic resin material.

  The cover 80 covers the fixing fitting 70 that connects the pipe fitting 50 and the fitting member 60, and maintains a stable mounting state of the fitting member 60 and the fixing fitting 70, and is a semi-cylindrical first shape having the same shape. It consists of the cover part 81 and the 2nd cover part 82, and the mutual cover parts 81 and 82 can be combined facing each other from right and left. A holding portion 83 that holds the base portion 71, the locking portion 72, and the leg portion 73 of the fixing bracket 70 is formed in an annular shape on the inner peripheral surfaces of the cover portions 81 and 82. Here, there are many types of fixing metal fittings 70 for connecting the pipe joint 50 and the joint member 60, but the appearance shape is the same regardless of the product of the fixing metal fittings 70. Therefore, by forming the holding portion 83 on the inner peripheral surface of the cover 80 in accordance with the external shape of the fixing bracket 70, the fixing bracket 70 can be stably held inside the cover 80. The outer diameter of the cover 80 is slightly larger than the outer peripheral surface of the protection member 40, and the cover 80 is fixed by fitting the groove 84 formed on the bottom surface of the cover 80 to the upper part of the protection member 40. Can do.

Below, the procedure which inserts the water flow pipe 4 in the through-hole 2 from the lower part of the floor board 1, and connects to the coupling member 60 arrange | positioned at the upper part of the floor board 1 is demonstrated.
First, as shown in FIG. 4, the fixing member 10 of the pipe fixture A is fixed to the floor board 1 with screws 5. Then, the water pipe 4 is inserted into the through hole 2 from the lower part of the floor plate 1 and the water pipe 4 is inserted into the first insertion hole 13 of the fixing member 10, and the water pipe 4 joins the pipe joint 50 to the tip thereof. At this time, the water flow pipe 4 and the pipe joint 50 are connected so as not to be easily detached by the stopper 57 provided in the pipe joint 50. The coupling of the pipe joint 50 to the water pipe 4 may be performed either before the water pipe 4 is inserted into the through hole 2 of the floor board 1 or after being inserted and exposed to the upper part of the floor board 1.

  Next, the fixing member 10 is mounted in a state where the supporting member 20 is horizontally attached to the water pipe 4 exposed on the upper portion of the floor plate 1 from the side, and the water pipe 4 is inserted into the second insertion hole 21 of the supporting member 20. In the storage chamber 17. At this time, as shown in FIG. 5A, after the convex portions 25 of the support member 20 are inserted between the locking protrusions 18 formed on the fixing member 10, a screwdriver or the like is inserted into the groove portion 23 of the support member 20. 5 is inserted and rotated until one end of the convex portion 25 and the restricting piece 18a of the locking projection 18 come into contact with each other, as shown in FIG. 5B, the locking projection 18 of the fixing member 10 and the support are supported. The locking groove 26 of the member 20 is engaged.

  Next, the packing 30 is attached horizontally to the water pipe 4 from the side, and the water pipe 4 is inserted through the third insertion hole 31 of the packing 30. Then, after the packing 30 is mounted on the upper portion of the support member 20, the protection member 40 is screwed and fixed to the fixing member 10 from above as shown in FIG. 6, and the water pipe 4 is accommodated in the storage chamber of the protection member 40. 43.

  Next, although the pipe joint 50 and the joint member 60 are connected, the water flow pipe 4 is pulled up to the hand of a builder so that this connection work may be performed easily. At this time, the support member 20 is fixed so as not to be easily detached from the fixing member 10 by the movement restricting means including the locking protrusion 18 of the fixing member 10 and the locking groove 26 of the supporting member 20, and the water pipe 4 is pulled up. However, the support member 20 does not float.

  Then, the fitting part 53 of the pipe joint 50 is inserted into the inlet part 63 of the joint member 60 so that the flanges 52 and 64 of the pipe joint 50 and the joint member 60 overlap each other. By fitting the slits 75 of the fixing bracket 70 into the flanges 52 and 64, the pipe joint 50 and the joint member 60 are connected with one touch. Thereafter, the cover 80 is attached to the fixing metal 70. At this time, the base 71, both locking portions 72 and 72, and both leg portions 73 and 73 of the fixture 70 are elastically held by the holding portion 83 of the cover 80, and do not vibrate. The cover 80 is detachably supported with respect to the pipe fixture A by fitting a groove 84 formed on the bottom surface to the upper part of the protective member 40.

As described above, the fixing member and the supporting member of the pipe fixing tool are fixed so as not to be easily removed by the movement restricting means. Therefore, even if the water pipe is pulled up by adjusting the attachment position of the joint member, the supporting member is not Workability is improved without lifting up.
Further, the movement restricting means includes a locking protrusion formed on one of the fixing member and the support member and a locking groove formed on the other, and is configured to engage the locking protrusion. Anyone can easily fix the fixing member and the support member. Furthermore, the support member can be easily rotated by inserting a tool such as a screwdriver into the groove, and the fixing member and the support member can be easily fixed. And since a pipe fixing tool serves as holding | maintenance of a sheath pipe, it is not necessary to prepare another articles | goods for holding a sheath pipe, and can reduce a number of parts and can aim at cost reduction.

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 which shows the relationship between a pipe fixing tool, a water flow pipe, a pipe joint, and a coupling member. It is an expansion disassembled perspective view of a fixing member and a supporting member. It is explanatory drawing which shows the state which mounts a supporting member and packing with respect to a water flow pipe. FIGS. 2A and 2B are cross-sectional views taken along line XX in FIG. 1, in which FIG. 1A shows a non-engaged state between the fixing member and the supporting member, and FIG. 1B shows an engaged state between the fixing member and the supporting member. It is explanatory drawing at the time of connecting a pipe joint and a coupling member with a fixing metal fitting, and attaching a fixing metal fitting to a cover.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1: Floor board 2: Through-hole 10: Fixing member 18: Locking protrusion 18a: Restriction piece 20: Support member 23: Groove part 26: Locking groove 27: Stopping part 40: Protection member 50: Pipe joint 70: Fixing metal fitting 60: Joint member A: Piping fixture

Claims (4)

A water pipe that is inserted into the through hole formed in the floor plate from the bottom and is raised at the top, and a joint member disposed on the top of the floor plate is connected at the top of the floor plate, and a pipe fixture that maintains this connection state Includes a fixing member fixed to the through hole of the floor plate, a supporting member that is accommodated in the fixing member and supports the water pipe, and a protective member that holds the joint member and covers the outer periphery of the water pipe. And the support member is provided with movement restriction means for restricting movement in the vertical direction from the fixing member when the water pipe is started up . The movement restricting means includes a locking projection formed on one of the fixing member and the support member and a locking groove formed on the other, and the locking projection and the locking groove are engaged with each other. The pipe fixture according to claim 1 , wherein movement of the support member in the vertical direction is restricted.   The pipe fixture according to claim 1 or 2, wherein a groove portion into which a tool can be inserted is formed in the support member.   The piping fixture according to any one of claims 1 to 3, wherein the water pipe is covered with a sheath pipe at a lower portion of the floor plate, and a retaining portion for holding the sheath pipe is formed on the support member. .

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