JP5396765B2 - Water distribution connection structure - Google Patents

Description

  The present invention relates to a water distribution connection structure for connecting an underfloor pipe standing on a floor surface and an above-floor pipe where a pipe port is located on the floor, and a slight play is provided between a socket and an adapter. The structure relates to a water distribution connection structure that can absorb errors and has improved workability.

  Conventionally, a method of fixing a socket to a floor surface when connecting an underfloor pipe standing on the floor surface and an on-floor pipe having a piping port on the floor is known. (For example, Patent Document 1)

  In addition, as a conventional method for connecting an underfloor pipe standing on a floor surface and an above-floor pipe having a pipe port located on the floor, a method of fixing an adapter to the floor surface and connecting the adapter and a socket is also known. (For example, Patent Document 2)

By the way, in the above technology, depending on the dimensional accuracy of the floor piping where the piping port is located on the floor connected to the socket or the construction accuracy of the starting position of the underfloor piping standing on the floor surface, the floor floor standing on the socket and floor surface There was a problem that the installation of the piping was bad and the workability was poor.

Patent 3920490 JP 2007-162306 A (page 9, FIG. 6)

In order to achieve the above object, the invention according to claim 1 is a pipe connection structure for connecting an underfloor pipe standing on a floor surface and an overfloor pipe composed of a horizontal pipe having a pipe port located on the floor, A cylindrical adapter connected to the underfloor pipe, a socket connected to the pipe port of the above floor pipe, a socket connected to the adapter and the adapter connecting portion, and interposed between the adapter and the socket to maintain watertightness. and a sealing material made of viscous gasket, the adapter includes a flange portion on a part of the outer peripheral surface, said socket being configured to connect has become elbowshaped, the floor pipes made of transverse引配pipe to underfloor pipe the adapter connector in the socket and a floor contact surface and its inside formed seal member receiving surface further distribution port formed on its inner side in contact with the floor surface, the socket And when connecting the adapter, the said floor contact surface of the socket adapter flange portion gap is provided between, the seal member receiving surface vicinity, smaller diameter than the inner diameter of said adapter falling edge The falling part is engaged with the inside of the upper part of the adapter .

According to the present invention, by providing play between the floor surface and the socket, the required dimensional accuracy of the floor piping where the piping port is located on the floor connected to the socket, and the start position of the floor piping standing on the floor surface The required construction accuracy is relaxed and the workability is improved.

A first embodiment of the present invention is shown in FIGS.

The adapter 1 shown in FIG. 1 includes a collar portion 3 provided over the entire circumference. As shown in FIG. 2, the adapter 1 has a cylindrical shape. Further, the outer diameter of the adapter 1 is substantially the same as the inner diameter of the drain pipe piped upright to the floor surface 10.

As shown in FIG. 3, the socket 2 has an elbow shape, and a pipe insertion portion 4 into which a horizontal pipe connected downstream from the drain port of the device is inserted from the lateral direction, and a floor contact surface 5 in contact with the floor surface. And a sealing material receiving surface 6 formed inside thereof, and a water distribution port 7 formed further inside thereof, and has an adapter insertion portion 8 into which the adapter 1 is inserted. Here, a part of the adapter insertion portion 8 serves as a sealing material receiving surface 6. The drain port 7 is also bent inside in accordance with the elbow shape of the socket 2.

The inner diameter of the pipe insertion portion 4 is equal to or slightly larger than the inner diameter of the horizontal pipe connected downstream from the drain port of the equipment. Further, the inner diameter of the drain port 7 is substantially equal to or slightly smaller than the inner diameter of the adapter 1.

The inner diameter of the adapter insertion portion 8 of the socket 2 is larger than the outer diameter of the flange portion 3.
When the inner diameters of the adapter 1 and the drain port 7 are the same, the inner diameter of the adapter insertion portion 8 must be smaller than the outer diameter of the flange portion 3 plus the width of the flange portion 3.
If the inner diameter of the adapter 1 and the drain port 7 is not the same, the inner diameter of the adapter insertion portion 8 must be smaller than the outer diameter of the flange 3 minus the difference between the inner diameter of the drain port 7 and the inner diameter of the adapter 1. Don't be.

  The protrusion height from the floor surface of the adapter 1 is shorter than the height of the sealing material receiving surface 6 from the floor contact surface 5 of the socket 2.

A flat packing is inserted as a sealing material in a space existing between the sealing material receiving surface 6 and the flange portion 3, and the socket 2 is fixed to the floor surface 10 by a fixing member such as a screw or a nail.

In order to fix the socket 2 to the floor surface 10, screw through holes 9 are provided on the floor contact surface 5 of the socket 2, and screw receiving holes are provided on the floor surface 10.
The inner diameter of the screw through hole 9 is formed to be larger than the diameter of the screw inserted into the floor surface 10 through the screw through hole 9.

FIG. 4 shows a construction example of the first embodiment. The adapter 1 is inserted into a drain pipe piped upright to the floor surface 10, and the adapter 1 and the drain pipe piped upright to the floor surface 10 are bonded. At this time, the flange 3 abuts against the floor surface 10.
In the pipe insertion portion 4 of the socket 2, a horizontal piping connected downstream from the drain port of the device is inserted.

Cover the adapter insertion portion 8 of the adapter 1 socket 2 protruding above the floor. At this time, a flat packing is inserted between the adapter 1 and the socket 2.
The socket 2 is screwed to the floor using the drilled screw through hole 9.
Even after the construction, the socket 1 itself can be detached by removing the screws.

The effect of stabilizing the adapter 1 is obtained when the collar portion 3 abuts against the floor surface 10.

Since the socket 2 has an elbow-like structure, it is possible to connect the horizontal piping connected downstream from the drainage groove of the device to the drainage pipe that is erected up to the floor surface 10.
In addition, since the inner diameter of the drain port 7 is intermediate between the inner diameter of the horizontal piping connected downstream from the drain port of the device and the inner diameter of the adapter, it flows from the horizontal piping connected downstream from the drain groove of the device. Thus, the drained water can flow out to the drain pipe that is erected up to the floor surface 10 without hindering the flow.

  The inner diameter of the adapter insertion portion 8 of the socket 2 is larger than the outer diameter of the flange portion 3. With such a structure, play is generated between the adapter 1 and the socket 2 fixed to the floor surface 10, and the construction position of the drain pipes installed upright to the adapter 1 and the floor surface 10, the drainage of the equipment. The required accuracy regarding the length of the horizontal pipe connected downstream from the groove is relaxed, and the workability is improved.

  At this time, if the amount of play existing between the adapter 1 and the socket 2 is within the above-described range, the drain outlet 7 of the socket 2 is within the range of the adapter 1 including the flange 3. The probability of water leakage is low.

The protrusion height of the adapter 1 from the floor surface is shorter than the height of the sealing material receiving surface 6 from the floor contact surface 5 of the socket 2, so that there is play between the adapter 1 fixed to the floor surface 10 and the socket 2. Therefore, the required accuracy for the smoothness of the floor surface 10 and the smoothness of the cross section of the drain pipe piped upright to the floor surface 10 is eased, and the workability is improved.

  By fixing the socket 2 to the floor surface 10 with screws using the screw through holes 9 shown in FIG. 5, the watertight sealability of the sealing material inserted between the adapter 1 and the socket 2 is improved. In addition to screws, double-sided tape, nails, adhesives, and the like can be considered as fixing members, but with screws, a sufficient tightening load can be obtained, and at the same time, the socket 2 itself can be detachably fixed. When a trouble such as clogging occurs for some reason in the drain pipe piped upright to the floor surface 10, there is an effect that the drain pipe piped upright to the floor surface 10 can be easily observed and treated. can get.

  Further, by setting the diameter of the screw through hole 9 of the socket 2 to be larger than the outer diameter of the screw to be used, a degree of freedom is generated with respect to the mounting position of the screw receiving hole provided on the floor surface and the socket 2, and the screw receiving The required accuracy of the hole construction position is relaxed and workability is improved.

In this embodiment, the construction is completed only by work by simple mechanical engagement other than screw fixing of the socket 2 to the floor surface 10. Since special work and tools are not required, workability on site is improved.

Next, a second embodiment of the present invention is shown in FIGS.

As shown in FIG. 6, the socket 2 is provided with a falling portion 11. As shown in FIG. 7, the upper portion of the adapter 1 is engaged with the falling portion 11, so that the inner diameter is slightly smaller than or substantially equal to the outer diameter of the falling portion 11.
At this time, the engagement between the falling portion 11 and the adapter 1 is provided with play similar to the flange portion 3 and the adapter insertion portion 8.

In the present embodiment, a viscous gasket is used as a sealing material between the sealing material receiving surface 6 and the flange 3. In this embodiment, the viscous gasket is made of a polypropylene compound, but any other material can be used as long as the material can be water-tightly sealed and has viscoplasticity and adhesiveness.

  The other configurations including the adapter 1 are the same as those in the first embodiment, and the same reference numerals represent the same elements.

  By using a viscous gasket as a sealant between the adapter 1 and the socket 2, it is not necessary to always apply a tightening load as compared with the case of using a packing. Further, even if there is a slight shift between the sealing material receiving surface 6 to be sealed and the flange portion 3, the sealing can be performed without any problem. As a result, the required accuracy with respect to the screw receiving hole construction position, the floor surface 10 and the smoothness of the cross section of the drain pipe piped upright to the floor surface 10, and the length of the horizontal pipe connected downstream from the drain groove of the equipment. It is relaxed and workability is improved.

  Since the falling part 11 is provided in the socket 2, the viscous gasket that has been crushed and has lost its place of flow protrudes toward the center of the cylindrical part, and leaks into the drain pipe that is plumbed up to the floor 10. Can be avoided.

  Further, by providing play in this portion, the same effect as play between the adapter insertion portion 8 and the collar portion 3 can be obtained.

In both embodiments, the socket 2 is an L-shaped elbow, but the socket 2 may have any shape such as a straight pipe or a U-shape. In addition, it is also possible to utilize this invention in the connection of not only a drain pipe but another kind of water distribution pipes, such as a water supply pipe. Further, in addition to the flat packing and the viscous gasket, various packings, another sealing member capable of watertight sealing the gasket, the putty, the O-ring and the like may be used.

It is sectional drawing of the adapter in the Example of this invention. It is a top view of the adapter in the Example of this invention. . It is sectional drawing of the socket in a 1st Example. It is sectional drawing of the construction example of a 1st Example. It is a bottom view of the socket in the first embodiment. It is sectional drawing of the socket in a 2nd Example. It is sectional drawing of the construction example of a 2nd Example.

Explanation of symbols

1 ... Adapter
2 ... Socket 3 ... Bridge 4 ... Pipe insertion part 5 ... Floor contact surface
6 ... Sealing material receiving surface 7 ... Drain port 8 ... Adapter insertion portion 9 ... Screw through hole 10 ... Floor surface 11 ... Falling portion 12 ... Water pipe 13 erected up to the floor surface ... Drainage connected to equipment Horizontal piping connected downstream from the mouth

Claims (1)

A pipe connection structure that connects an underfloor pipe that stands on the floor surface and an overfloor pipe that consists of a horizontal pipe with a pipe port located on the floor,
A cylindrical adapter connected to the underfloor piping;
A socket connected to the piping port of the floor piping, and connected to the adapter and the adapter connecting portion,
Interposed between said adapter socket, and a sealing material made of viscous gasket to hold the watertight,
The adapter includes a collar on a part of the outer peripheral surface,
The socket is in the shape of an elbow, and is configured to connect an upper floor pipe made of a horizontal pipe to an under floor pipe,
The adapter connection portion in the socket includes a floor contact surface that contacts the floor surface, a seal material receiving surface formed on the inside thereof, and a water distribution port formed on the inside thereof.
When the socket and the adapter are connected, a gap is provided between the floor contact surface of the socket and the adapter flange,
In the vicinity of the sealing material receiving surface, a falling portion having a diameter smaller than the inner diameter of the adapter is provided,
The water distribution connection structure characterized in that the falling part is engaged with the inside of the upper part of the adapter .

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