JPH0439881Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention is a double-sheathed pipe structure that is laid under the floor of a building, and attached equipment such as water faucets, gas taps, faucets, and heat exchangers are connected to the fluid supply pipe that is pulled out from the sheathed pipe and rises above the floor. This invention relates to an above-the-floor connection for double piping.

[Conventional technology]

The conventionally known double piping connection uses a curved pipe joint (elbow pipe) 1 as shown in FIG.
The fixing rings 3 and 4 attached to the inner and outer surfaces of the pipe fitting 1 are fitted into the window hole 2a of the partition 2, and a plastic such as polyethylene inserted into the sheath pipe 5 is inserted into the hidden side opening 1a of the pipe joint 1. The fluid supply pipe 6 is connected by a cap nut 7, and an accessory 8 such as a faucet can be attached to the exposed side opening 1b of the pipe joint 1, and the pipe joint 1 and the sheath are connected together. tube 5
The connection with the fluid supply pipe 6 inserted through is a hidden connection within the partition part 2.

[Problem that the invention attempts to solve]

For example, when installing a water supply connection using a fluid supply pipe with a double piping structure on the floor of a washroom, flush toilet, etc., even if the conventionally known connection described above is applied, the pipe joint 1 and sheath pipe 5 Inserted fluid supply pipe 6
It is inevitable that the connection will be hidden under the floor. With such a concealed connection, fluid leakage from the connection cannot be confirmed from the outside, and repair work in the event of a leak or work to replace the fluid supply pipe 6 with a new one may destroy part of the floor. The maintenance and maintenance work is very complicated, and it also poses a big problem in terms of cost.

[Means to solve the problem]

This invention solves the above problems, and
The purpose is to insert the fluid supply pipe laid under the floor into the sheath pipe and pull it out onto the floor, and then insert the rising part into the support pipe set up on the floor, so that the upper end side of the support pipe is exposed above the floor. The purpose of the present invention is to provide an above-the-floor connection part for double piping that allows connection of a fluid supply pipe on the side. Therefore, the above object of the present invention is to fix a curved pipe joint under the floor, the upper end of which faces the floor and the lower end of which is connected to a sheath pipe laid under the floor, and to fix the curved pipe joint under the floor. A support tube is connected to the support tube, and a fluid supply tube is inserted from the sheath tube through the pipe joint into the support tube that stands up on the floor, and the connection port of the fluid supply tube pulled out from the support tube is inserted under the connection fitting. This is achieved by an above-the-floor connection part of the double piping, which is connected to the side port part and fixed to the support pipe by means of a fixing nut screwed onto the mouth end of the support pipe.

[Effect]

The fluid supply pipe whose sheath pipe is laid under the floor is held by inserting the rising part above the floor into the support pipe, and the connecting fitting that connects the fluid supply pipe to the lower mouth part is screwed into the support pipe with the fixing fitting. By attaching it firmly to the support pipe, it is possible to form an above-the-floor connection part of the fluid supply pipe whose standing state is stable.

【Example】

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2, the upper end opening 12 of the curved pipe fitting (elbow pipe) 11 facing the floor f is open, and the lower end opening 13 of the pipe fitting 11 has a sheath pipe laid under the floor. 14 tip openings 15 are connected. A support pipe 16, which is a decorative pipe such as a chrome-plated pipe, is connected to the upper end opening 12 of the pipe joint 11 in a state that stands up vertically from the floor surface f, and the connection is made by a female thread provided on the side of the pipe joint 11. 12a and support tube 16
This is achieved by screwing with a male screw 16a provided on the side. Note that the pipe joint 11 and the sheath pipe 14 are connected to the connecting ring 1.
7, and the pipe joint 11 is fixed to the structure under the floor using a support fitting 18.
18a is the screw hole for fixing it. A fluid supply pipe 19 is inserted into the support pipe 16 from the sheath pipe 14 through the pipe joint 11, and the connection port 19a of the fluid supply pipe 19 is connected to the lower port 22 of the connection fitting 21. Upper mouth part 2 of 21
Attachment 20 such as a faucet is connected to 3. A flange portion 24 is provided at the center portion of the connection fitting 21. A fixing nut 25 is loosely fitted into the connecting fitting 21, and this fixing nut 25 is screwed into a male thread 16b provided on the mouth end side of the support tube 16. The connecting fitting 21 is tightened by the edge 25 a to couple the connecting fitting 21 to the support tube 16 , and the fluid supply tube 19 is supported on the supporting tube 16 together with the connecting fitting 21 . To explain the connection between the fluid supply pipe 19 and the connection fitting 21 in more detail, the connection port 1 of the fluid supply pipe 19
9a is strongly clamped by an inner core 26 and a tightening ring 27. A cap nut 28 is fitted into this clamped portion, and the cap nut 28 is attached to the connecting fitting 21.
When the male thread 22a provided on the outer periphery of the lower opening 22 is screwed together and tightened, the connecting opening 19a of the fluid supply pipe 19 connects to the inner core 26 and the tightening ring
The fluid supply pipe 19 and the connecting fitting 21 are tightly connected to each other by being tightened into the lower opening 22 of the connecting fitting 21 through the connecting fitting 21 . In this connected state, tighten the bag nut 28.
When the support tube 16 and the connecting fitting 21 are brought into contact with the mouth end of the support tube 16 and the connecting fitting 21 is tightened with the fixing nut 25 as described above, the supporting tube 16 and the connecting fitting 21 are firmly connected. Note that the fluid supply pipe 19 is made of a plastic pipe such as polyethylene, and a shoulder 22b is provided on the inner side of the lower opening 22 of the connection fitting 21, and this shoulder 22b and the support pipe 16 A sealing gasket (not shown) is attached to the joint between the mouth end of the cap nut 28 and the cap nut 28.

[Effect of the idea]

The present invention is as described above, in which a support pipe is connected in an upright state to a pipe joint whose upper end opening faces the floor surface, and fluid is supplied through this support pipe to a sheath pipe laid under the floor. Because the tube can be inserted,
Laying the fluid supply pipe and connecting it to the connecting fittings can be done without exposing it on the floor, and the rising part of the fluid supply pipe above the floor is inserted into the support pipe, making it stable and making the connection with the connecting fittings easy. Not only can it be made easily and firmly, but there is no fear of water droplets adhering to the support pipe, and an aesthetically pleasing on-floor connection part can be provided. In addition, there is no need for on-site insulation work, and maintenance and maintenance work is easy.
Its practical value is enormous.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view showing an embodiment of the present invention;
The figure is an exploded perspective view of the main parts of the same as above, and FIG. 3 is a side sectional view showing a conventional connection part. In the figure, 11 is a pipe joint, 12 is an upper end port, 13 is a lower end port, 14 is a sheath pipe, 16 is a support pipe, 16b is a male thread, 19 is a fluid supply pipe, 19a is a connection port thereof, and 21 is a Connection fittings, 22 is a lower opening, 22a is a male screw, 25 is a fixing nut, 26 is an inner core, 27 is a tightening ring, 28 is a cap nut, f
is the floor surface.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A curved pipe joint whose upper end faces the floor and whose lower end is connected to a sheath pipe laid under the floor is fixed under the floor, and A support tube is connected to the end port, and a fluid supply tube is inserted from the sheath tube through the pipe joint into the support tube that stands up on the floor, and the connection port of the fluid supply tube pulled out from the support tube is connected to a fitting. 1. An above-floor connection part for double piping, characterized in that the connection fitting is connected to the lower mouth of the support pipe and fixed to the support pipe by a fixing nut screwed onto the mouth end of the support pipe. (2) The connecting port of the fluid supply pipe is clamped by the inner core and the tightening ring, and this clamped part is inserted into the lower opening of the connection fitting to form a bag that is screwed into the lower opening. The above-mentioned on-floor connection part for double piping according to claim 1 of the above-mentioned utility model registration, characterized in that the connection port part is connected to a connection fitting by a nut.