JP2005344794A - Connection joint and pipe construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve work efficiency in pipe construction by extremely facilitating work without requiring high construction accuracy when cutting an underfloor pipe of a building. <P>SOLUTION: This connection joint 3 connects an above floor pipe to the underfloor pipe of the building, and is composed of a fixing seat 5 fixedly installed on a floorboard of the building, and a sliding joint 6 vertically slidably installed on the fixing seat 5, and is constituted so that an upper side connection port 12 connected to the above floor pipe is arranged in an upper part of the sliding joint 6, and a lower side connection port 16 connected with the underfloor pipe is arranged in a lower part of the sliding joint 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a connection joint for connecting a floor pipe and a floor pipe of a building, and a piping construction method using the connection joint.

Conventionally, as a pipe joint (connecting joint) for connecting a pipe on the floor (floor pipe) and a pipe under the floor (floor pipe) A pipe joint in which a flange portion is integrally provided is generally provided (see Patent Document 1).
And when performing construction to connect the piping on the floor and the piping under the floor using the above-mentioned pipe joint, first cut the piping under the floor at the height of the floor surface, Connect the lower pipe connection part of the joint body of the pipe joint, and then fix the pipe joint by screwing the flange part to the floor. Finally, connect the pipe on the floor to the joint body of the pipe joint. Connect the upper pipe connection.

JP-A-8-261369 (page 2-4, FIG. 1)

However, in the conventional pipe joint, since the flange portion is integrally provided on the side surface portion of the joint body, the position of the joint body cannot be adjusted up and down with respect to the flange portion. Therefore, if the pipe under the floor is cut at a position lower than the height of the floor, the pipe under the floor cannot be sufficiently inserted into the joint body, and the pipe under the floor is firmly attached to the joint body. There is a problem that it cannot be connected, and there is a problem that a step is generated inside the joint body and a smooth water flow cannot be secured.
On the other hand, if the pipe under the floor is cut at a position higher than the height of the floor, the lower surface of the flange portion cannot be brought into contact with the upper surface of the floor, and the pipe joint cannot be firmly fixed to the floor. There was a problem.
Therefore, there is a problem that high construction accuracy is required when piping under the floor is cut at the height of the floor surface, and skill is required for work.

As a means for solving the above-described conventional problems, the present invention is a connection joint 3 for connecting a floor pipe 1 and a floor pipe 2 of a building, and a fixed seat 5 fixedly attached to the floor board 4 of the building. And a sliding joint 6 attached to the fixed seat 5 so as to be slidable up and down. An upper connection port 12 to which the floor pipe 1 is connected is provided at an upper portion of the sliding joint 6, A connecting joint 3 is provided in which a lower connection port 16 to which the underfloor pipe 2 is connected is provided at the lower part of the sliding joint 6.
The sliding joint 6 is attached to the fixed seat 5 so that it cannot rotate left and right, and a threaded portion 13 to which the floor pipe 1 is screwed and connected to the upper connection port 12 of the sliding joint 6. It is desirable to be provided.
Moreover, in this invention, the process 1 which cut | disconnects the underfloor pipe 2 of a building by the predetermined height from the floor surface L, the process 2 which connects the sliding joint 6 of said connection joint 3 to this cut | disconnected underfloor pipe 2, Step 3 of attaching the fixed seat 5 of the connecting joint 3 to the sliding joint 6, Step 4 of attaching and fixing the fixed seat 5 to the floor plate 4, and connecting the floor pipe 1 of the building to the sliding joint 6. A piping construction method comprising the step 5 is provided.
In the step 1, it is desirable to cut the underfloor pipe 2 of the building at a height of 0 mm to 10 mm from the floor surface L.

In the connecting joint 3 and the piping construction method of the present invention, the sliding joint 6 of the connecting joint 3 is slid up and down with respect to the fixed seat 5 to adjust the relative position between the sliding joint 6 and the fixed seat 5. can do.
For this reason, the underfloor pipe 2 of the building is cut from the floor surface L at a predetermined height, and the sliding joint 6 of the connecting joint 3 is connected to the cut underfloor pipe 2, and then the sliding joint 6 and the fixed seat are connected. The fixed seat 5 can be attached to the sliding joint 6 by adjusting the relative position to the sliding joint 6, and the lower surface of the fixed seat 5 is securely brought into contact with the upper surface of the floor plate 4. The floor plate 4 can be firmly attached and fixed.
In the present invention, since the underfloor pipe 2 is not cut at a position lower than the height of the floor surface L, the underfloor pipe 2 is sufficiently inserted into the sliding joint 6 so that the underfloor pipe 2 is While being able to connect firmly to this sliding joint 6, since a level | step difference does not arise in this sliding joint 6, the smooth water flow can be ensured.
Therefore, in the present invention, high construction accuracy is not required when cutting the underfloor pipe 2 of the building, the work becomes very easy, and the workability of the pipe construction is improved.

  Hereinafter, the present invention will be described in detail with reference to Examples 1 to 3.

The present invention will be described with reference to an embodiment shown in FIGS.
As shown in FIGS. 1 and 2, a connection joint 3 for connecting a stop cock 1 that is a floor pipe of a building and a water supply pipe 2 that is a floor pipe is fixedly attached to a floor plate 4 of the building. It comprises a seat 5 and a sliding joint 6 attached to the fixed seat 5 so as to be slidable up and down and not to rotate left and right.

  A circular flange plate 7 is provided at the lower portion of the fixed seat 5, and a hexagonal center insertion hole 8 having a polygonal shape is provided at the center of the flange plate 7. A hexagonal guide rib 9 is erected around the central insertion hole 8, and six screw insertion holes 10 are provided in the flange plate 7 outside the guide rib 9.

At the upper part of the sliding joint 6, a hexagonal columnar upper connection portion 11, which is a polygonal column shape corresponding to the shape of the central insertion hole 8 of the flange plate 7, is provided at the central portion of the upper connection portion 11. Is provided with an upper connection port 12. Inside the upper connection port 12, a screw fitting 13, which is a screw portion to which the water stop cock 1 is screwed and connected, is attached. Further, mark recesses 14 are respectively provided on the six outer peripheral surfaces of the upper connection part 11, and the upper end part of the mark recess 14 is set at a position 11 mm from the upper end part of the upper connection port 12. Yes.
In the present embodiment, the height of the upper connection portion 11 is set to be 1 mm higher than the height of the guide rib 9, and in a state where the sliding joint 6 is inserted into the fixed seat 5 at the height level of the floor surface L. The upper end of the upper connection portion 11 of the sliding joint 6 is projected from the upper end of the guide rib 9 of the fixed seat 5 by 1 mm (see FIGS. 5 and 6).

  On the other hand, a cylindrical lower connection portion 15 is provided at the lower portion of the sliding joint 6, and a lower connection port 16 to which the water supply pipe 2 is connected is provided at the center of the lower connection portion 15. Is provided. In addition, the inner peripheral surface of the lower connection port 16 has a tapered shape that spreads downward.

  When piping is performed using the connection joint 3, the water supply pipe 2 is supported and fixed under the floor by a fixture (not shown) in advance, and the water supply pipe 2 is a floor plate as shown by a broken line in FIG. 3. 4 projecting from the opening 17. And the part (dashed line part in FIG. 3) which protruded from the opening part 17 of the floor board 4 among this water supply pipe 2 is cut | disconnected from the floor L at the height of 0 mm-10 mm from the floor of a building (process 1).

  Next, as shown in FIG. 4, the lower connection port 16 of the sliding joint 6 of the connection joint 3 is externally fitted to the upper end portion of the cut water supply pipe 2 from above, and the outer peripheral surface of the water supply pipe 2 and the The sliding joint 6 is bonded to the inner peripheral surface of the lower connection port 16 with an adhesive, and the sliding joint 6 of the connecting joint 3 is connected to the water supply pipe 2 (step 2).

Then, as shown in FIG. 5, the central insertion hole 8 of the fixed seat 5 of the connection joint 3 is inserted into the upper connection portion 11 of the sliding joint 6 from above, and the connection joint 3 is inserted into the sliding joint 6. Is attached (step 3).
Thereafter, the fixed seat 5 of the connection joint 3 is slid downward with respect to the sliding joint 6, the lower surface of the flange plate 7 of the fixed seat 5 is brought into contact with the upper surface of the floor plate 4, and the flange plate 7 The screw 18 is inserted into the screw insertion hole 10 and the fixing seat 5 is fixed to the floor plate 4 by screwing (step 4).
At this time, the shape (hexagonal shape) of the central insertion hole 8 of the fixed seat 5 is a shape (hexagonal columnar shape) corresponding to the shape of the upper connection portion 11 of the sliding joint 6. The fixed seat 5 is attached to the sliding joint 6 so as to be slidable in the vertical direction and not to be rotatable in the left-right direction. Further, since hexagonal guide ribs 9 are erected around the central insertion hole 8, when the fixed seat 5 of the connection joint 3 is slid vertically with respect to the slide joint 6, The fixed seat 5 is guided by the guide rib 9.

Finally, as shown in FIG. 6, a screw part 19 provided at the lower part of the stop cock 1 is screwed and connected to the screw fitting 13 of the upper connection part 11 of the sliding joint 6, A saddle 20 that is externally fitted to the lower part of the faucet 1 so as to be vertically slidable is covered on the upper side of the connection joint 3 (step 5).
In this embodiment, a fixing portion (not shown) is provided on the top of the stop cock 1, and the stop cock 1 connected to the connection joint 3 is attached to the building via the fixing portion. On the other hand, sliding up and down is prevented. Accordingly, the sliding joint 6 of the connection joint 3 to which the stop cock 1 is connected slides up and down with respect to the fixed seat 5 fixed to the floor plate 4 via the fixing portion of the stop cock 1. Is prevented.

In the connecting joint 3 and the pipe construction method as described above, the sliding joint 6 of the connecting joint 3 is slid up and down with respect to the fixed seat 5, and the relative position between the sliding joint 6 and the fixed seat 5 is set. Can be adjusted.
Therefore, after cutting the water supply pipe 2 at a predetermined height from the floor L and connecting the sliding joint 6 of the connection joint 3 to the cut water supply pipe 2, the sliding joint 6 and the fixed seat 5 The fixed seat 5 can be attached to the sliding joint 6 by adjusting the relative position of the fixed seat 5, and the lower surface of the fixed seat 5 is securely brought into contact with the upper surface of the floor plate 4. The floor plate 4 can be firmly attached and fixed.
Further, since the water supply pipe 2 is not cut at a position lower than the height of the floor surface L, the water supply pipe 2 can be sufficiently inserted into the sliding joint 6, and the water supply pipe 2 is connected to the water supply pipe 2. The sliding joint 6 can be firmly connected. In addition, since no step is generated inside the sliding joint 6, a smooth water flow can be ensured.
Furthermore, the connection work between the connection joint 3 and the water supply pipe 2 and the connection work between the connection joint 3 and the water stopcock 1 can be performed from the floor of the building.
Therefore, when cutting the water supply pipe 2, high construction accuracy is not required, work becomes very easy, and workability of piping construction is improved.

Further, in this embodiment, as shown in FIG. 7, a mark concave portion 14 is provided on the outer peripheral surface of the upper connection portion 11 of the sliding joint 6 of the connection joint 3 at a position 11 mm from the upper end portion of the upper connection port 12. Since the height of the upper connecting portion 11 is set to be 1 mm higher than the height of the guide rib 9, when the water supply pipe 2 is cut from the floor surface L at a position higher than 10 mm, the sliding When the fixed seat 5 of the connecting joint 3 is attached to the joint 6, the mark recess 14 of the sliding joint 6 goes out from the upper end of the guide rib 9 of the fixed seat 5, and the mark recess 14 can be easily confirmed visually. Therefore, it is possible to prevent the water supply pipe 2 from being cut from the floor surface L at a position higher than 10 mm.
As shown in FIGS. 5 and 6, the sliding joint 6 attached to the water supply pipe 2 cut at the floor L is inserted into the fixed seat 5, and the upper connecting portion 11 of the sliding joint 6 is connected. Since the upper end protrudes 1 mm from the upper end of the guide rib 9 of the fixed seat 5, visual confirmation is easy during construction work.

Furthermore, in this embodiment, the cutting position of the water supply pipe 2 is set to a height position of 5 mm from the floor surface L, for example.
In this way, by setting the cutting position of the water supply pipe 2 to a position 5 mm from the floor L, a deviation of ± 5 mm occurs when the water supply pipe 2 is cut. The sliding joint 6 of the connecting joint 3 slides up and down with respect to the fixed seat 5 to adjust the relative position between the sliding joint 6 and the fixed seat 5 to absorb the deviation. In addition, the lower surface of the fixed seat 5 can be securely brought into contact with the upper surface of the floor plate 4 so that the fixed seat 5 can be firmly attached and fixed to the floor plate 4.

FIG. 8 shows another embodiment.
Compared to the previous embodiment shown in FIGS. 1 to 7, in the connection joint 3 of this embodiment shown in FIG. 8, the flange plate 7 at the lower portion of the fixed seat 5 is thick, and the thick flange A screw insertion hole 10 is provided in the plate 7 through a notch 21.

The connection joint 3 can also achieve the same effects as those of the thirteenth embodiment. In addition, in this embodiment, the flange portion 7 of the fixed seat 5 is thick, so that the rigidity of the fixed seat 5 is increased. Therefore, it is possible to prevent the fixing seat 5 from being deformed by the tightening torque when the lower threaded portion 19 of the water stopcock 1 is screwed to the threaded fitting 13 of the upper connecting portion 11 of the sliding joint 6. be able to.

FIG. 9 shows still another embodiment.
Compared to the previous embodiment shown in FIGS. 1 to 7, in the connection joint 3 of this embodiment shown in FIG. 9, the flange plate 7 at the lower part of the fixed seat 5 is thick, and the thick flange A screw insertion hole 10 is provided in the plate 7.

The connection joint 3 described above can also provide the same operational effects as the first embodiment. Moreover, since the flange portion 7 of the fixed seat 5 is thick like the second embodiment, Therefore, the fixing seat 5 is prevented from being deformed by the tightening torque when the lower screw portion 19 of the water stopcock 1 is screwed to the screw fitting 13 of the upper connection portion 11 of the sliding joint 6. can do.

The embodiments of the present invention have been described above by way of examples. However, the scope of the present invention is not limited to these embodiments, and can be changed or modified in accordance with the purpose within the scope of the claims. It is.
For example, other than the present embodiment, the building floor pipe 1 may be a drain pipe (not shown) from an indoor drainage facility, and the floor pipe 2 may be a floor drain pipe (not shown).
Further, the threaded portion 13 provided in the upper connection port 12 of the sliding joint 6 of the connection joint 3 and connected to the building floor pipe 1 by screwing may be provided integrally with the sliding joint 6. Good.
Further, other than the present embodiment, the floor pipe 1 may be a single threaded pipe.
Furthermore, when the floor pipe 1 is a floor pipe 1 made of a resin such as vinyl chloride resin, the upper connection port 12 of the sliding joint 6 may be an adhesive port or a rubber ring port.

  The present invention eliminates the need for high construction accuracy when cutting underfloor pipes in buildings, makes the work very easy, and improves the workability of piping construction. It can be used above.

It is a disassembled perspective view of a connection joint. It is an exploded side sectional view of a connection joint. It is explanatory side sectional drawing of the process 1 of a piping construction method. It is explanatory side sectional drawing of the process 2 of a piping construction method. It is explanatory side sectional drawing of the process 3 and the process 4 of a piping construction method. It is explanatory side sectional drawing of the process 5 of a piping construction method. It is explanatory side sectional drawing which shows a mode that the connection coupling was attached to the underfloor pipe cut | disconnected by predetermined height from the floor surface. It is a disassembled perspective view of the connection coupling of another Example. It is a disassembled perspective view of the connection coupling of another Example.

Explanation of symbols

1 Floor pipe (water stopcock)
2 Underfloor pipe (water supply pipe)
3 Connection Joint 4 Floor Board 5 Fixed Seat 6 Sliding Joint 12 Upper Connection Port 13 Threaded Part (Screw Fitting)
16 Lower connection port L Floor

Claims (4)

  A connection joint for connecting an upper floor pipe and an underfloor pipe of a building, comprising a fixed seat fixedly attached to the floor plate of the building, and a sliding joint attached slidably up and down with respect to the fixed seat The upper connection port to which the floor pipe is connected is provided at the upper part of the sliding joint, and the lower connection port to which the lower floor pipe is connected is provided at the lower part of the sliding joint. A featured connection joint.   The sliding joint is attached to the fixed seat so as not to rotate left and right, and an upper connection port of the sliding joint is provided with a threaded portion to which the floor pipe is screwed and connected. The connection joint according to 1.   A step 1 of cutting the underfloor pipe of the building at a predetermined height from the floor surface, a step 2 of connecting the sliding joint of the connecting joint according to claim 1 or 2 to the cut underfloor pipe, and the sliding A step 3 of attaching the fixed seat of the connecting joint according to claim 1 or 2 to the dynamic joint, a step 4 of attaching and fixing the fixed seat to the floor plate, and a step of connecting a floor pipe of a building to the sliding joint 5. A piping construction method characterized by comprising:   The piping construction method according to claim 3, wherein in the step 1, the underfloor pipe of the building is cut at a height of 0 mm to 10 mm from the floor surface.

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