JPH0244965B2 - JOMIZUHAIKANNIOKERUYUNITSUTOKANTSUGITENOKOZO - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) This invention relates to improvements in pipe joints that connect hot and cold water mixing faucets and other faucet bodies to water supply sources or buried or exposed piping leading to hot water sources. It is something.

(Prior art) Conventionally, when installing a hot water mixing faucet to a new or existing water supply pipe, as shown in Figure 4A, the water supply side pipe B and the hot water supply side pipe C were buried pipes. If the pipes are placed abnormally close to each other due to a mistake at the time, or are misaligned vertically or horizontally, the connecting pipes 30 and 30' may collide with each other during installation and may cause the threads to match. If the connection pipe 30 is screwed in, it may collide with the bathtub or counter D, etc., and the faucet may be damaged due to the limited space at the installation location, as shown in Figure 4 B. There was no end to problems that made construction impossible. As a solution to this problem, the applicant devised the
There is one in Figure 2 of No. 7474 (Figure 4 C of the drawings of the present application).

To briefly explain about FIG. The connecting portion 34 is rotatably connected to the connecting pipe 31 via a cap nut 38 provided outside the communication port 33, and the connecting portion 37 is provided outside the connecting portion 37. It is detachably connected to the mounting pipe 35 via a cap nut 39.

In the case of the above, only the mounting pipe 35 should be screwed into the pipe inside the wall beforehand, and then,
Loosen the cap nut 38 of the faucet part 32 to allow the connecting pipe 31 to rotate left and right, and attach it to the mounting pipe 35 buried in the wall via the cap nut 39, and then tighten the cap nut 38 for construction. Because of this, it has the advantage of being quick and easy to install and is easy to work with. However, the connecting pipe itself is special compared to commonly used ones, and it cannot be used with existing connecting pipes. It had the disadvantage of poor compatibility.

(Problems to be solved by the present invention) The problems to be solved by the present invention are disadvantageous conditions such as mistakes during piping construction, limited space at the faucet installation location, and problems such as buried piping or exposed piping. Regardless,
To easily and reliably perform the installation work of faucet bodies.

(Means for Solving the Problems) The technical means taken by the present invention to solve the above problems is to attach a connecting pipe having a flange to one end of the connecting pipe via a cap nut, This joint pipe is connected to the hot water side and water side buried pipes buried in the wall at the construction location, and a pre-installed mounting pipe with a stopper is connected to the above pipe via a cap nut. It is.

(Function of the invention) When connecting hot water side or water side buried piping buried in a construction wall to a hot/cold water mixing faucet or other faucet body, the connection is pre-installed on the faucet body. By simply rotating the cap nut from the outside of the wall to connect the faucet body to the pipe without rotating the pipe and screwing it in, the faucet body can be connected by simply rotating the cap nut. The purpose is to quickly and easily connect to buried piping.

(Example) Hereinafter, one example of the present invention will be described in detail based on the drawings.

As shown in FIGS. 1, 2, and 3, the pipe joint A of this embodiment is made up of a mounting pipe 1, a joint pipe 6, and a cap nut 8, which are formed separately.
has a water supply source or hot water source at one end (both illustrations omitted)
A male threaded part 4 is provided to screw with a female threaded part 3 provided inside the buried pipe 2 in the wall W leading to the wall W, and a detent part 5 having a hexagonal or other polygonal cross section is formed on the outside of the other end. It has a substantially cylindrical shape with a female threaded portion 7 provided inside the rotation preventing portion 5 to be screwed into a connecting pipe 6, which will be described later. Further, the cap nut 8 has a rotation preventing portion 9 having a hexagonal or other polygonal cross section formed on the outside, and a main body 1 of a faucet such as a hot water mixer faucet or other faucet on the inside.
0 is provided with a relatively long female threaded portion 13 that is approximately the same length as the male threaded portion 12 of the connecting pipe 11 that is attached during construction, and the female threaded portion 13 has a flange that annularly projects inward on the end surface opposite to the screw opening. 14 is installed protrudingly. The connecting pipe 6 has a male threaded part 15 at one end that engages with the female threaded part 7 of the attachment pipe 1, and an outward facing collar part 16 which engages with the inward facing collar part 14 of the cap nut 8 at the other end. It is provided. The pipe joint 6 is provided with a through hole 17 having a hexagonal cross section or a polygonal cross section on the inside to engage a tool (not shown) or the like, thereby forming a pipe joint A.

Now, to assemble pipe joint A, use cap nut 8.
The connecting tube 6 is placed inside the cap nut 8 so that the flange 14 of the connecting tube 6 engages with the flange 16 of the connecting tube 6, and the connecting tube 6 is made to protrude to the outside from the flange 16 of the cap nut 8. After applying an adhesive to the portion 15 or wrapping a sealant around it, the joint pipe 6 is connected to the female threaded portion 7 of the attachment pipe 1 in a watertight manner. In this case, the cap nut 8 and the connecting pipe 6 are connected to each other's flanges 14 and 1.
They are rotatably connected by 6. To attach the faucet main body 10 to the buried pipe 2 via the pipe joint A assembled as described above, first attach the pipe joint A to the rotation stopper 5 of the attachment pipe 1 of the pipe joint A. It is hung and screwed into the buried pipe 2, and then an annular packing 18 is pushed into the end face of the flange part 16 of the connecting pipe 6. Subsequently, the male threaded part 12 of the connecting pipe 11 is exposed to the female threaded part 13 of the cap nut 8, and the cap nut 8 is rotated in the tightening direction to connect the connecting pipe 11 to the pipe joint A in a freely flowing manner.
After that, connect the connecting pipe 11 with its cap nut 19,
It is combined with the faucet main body 10 to complete the construction.

(Effects of the Invention) Since the present invention is constructed as described above, it has the following advantages.

(1) In this pipe joint, a connecting pipe with a flange is attached to the anti-rotation side of the attached pipe, and a cap nut with a symmetrical flange is rotatably connected to the flange. Even if there is a mistake in the buried piping or there are spatial restrictions on the installation location, the cap nut with a small turning radius allows for quick installation without any problems.

(2) Since the cap nut has a female thread that engages with the male thread of the connecting pipe (note: this thread is unified by the standard), there is no need for special parts like in the past. Compatible with all faucets for easy installation.

(3) Compared to the conventional method, which required rotating connecting pipes with a large rotation radius, which caused many problems, piping work can be easily performed even if there are spatial restrictions on the installation location.
And it can be done quickly.

[Brief explanation of drawings]

Figure 1 is an enlarged side cross-sectional view of the pipe joint of the present invention installed on piping, Figure 2 is an enlarged side cross-sectional view with a portion of the pipe joint omitted, and Figure 3 is an enlarged side cross-sectional view of the pipe joint A installed. Front view of the main body of the faucet in this case, Fig. 4A,
B and C are explanatory diagrams of the prior art. (Explanation of symbols of main parts), 1...Mounting pipe, 2
...Buried pipe, 4...Male thread part, 6...Connection pipe,
7, 13... Female thread part, 8... Cap nut, 10...
...Faucet body, 11... Connection pipe, 14, 16...
Flange, 17...through hole, A...pipe joint.

Claims (1)

[Claims] 1 It has a male threaded part 4 that is screwed into the buried pipe 2 leading to the hot water source and the water supply source, and has a female threaded part 7 only at the mouth end.
A mounting tube 1 is formed with a through hole 17 having a polygonal cross section on the inside, and a flange 14 at one end.
A cap nut 8 having a flange 16 symmetrical to the flange 14 of the flange 6 is provided, and the cap nut 8 and the flange 6 are connected to each other's flange 14 , 1 .
6, and by fixedly screwing the connecting pipe 6 into the female threaded portion 7,
The cap nut 8 is freely rotatably connected to the joint pipe 6 to form a pipe joint A, and the buried pipe 2 and the connecting pipe 11 leading to the faucet body 10 are connected in a watertight manner through the pipe joint A. The structure of a unit pipe joint in water supply piping characterized by the fact that it is connected.