JPS6242999Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a plug for curing the connection port of the piping material used when installing a water faucet to the piping material inside the wall. Relating to a plug for curing a connection port for piping material inside a wall, which is previously screwed onto a connection port of piping material at a location corresponding to the interior of the wall, and which is unscrewed when a water faucet is screwed onto the piping material after wall construction. It is something.

(Prior Art) The above-mentioned curing plug prevents damage to the faucet connection threads of the piping material before the faucet is attached to the piping material inside the wall, and prevents foreign matter from entering the piping material. As shown in FIG. 5, such a conventional plug has a male threaded portion 21 formed at the tip of a plug body 20 having a solid structure. Main body 2
A fitting part 22 such as a spanner is provided on the other end side of the 0.

Therefore, prior to construction of wall B', such plug A' is screwed into the connection port of piping material (an elbow is exemplified) 23 at a corresponding location inside the wall, and after construction of the wall, the piping material 23 is At the same time, a water faucet is screwed onto the piping material 23 after the plug is screwed off.

(Problem that the invention aims to solve) By the way, inside the piping, there are pipe chips and seal tape scraps from piping work, as well as foreign substances such as rust and sand grains. In most cases, flushing is performed by opening the faucet and passing water through it, but these foreign substances tend to clog the valve mechanism of the faucet. However, since the flow path switching part of mixer faucets that can be freely switched between showers is structurally complex, clogging with foreign matter is even more noticeable. This has led to complaints regarding replacement, etc.

The present invention has been developed in view of the above-mentioned circumstances, and it makes it possible to flush the piping before installing the faucet by a simple improvement to the connection port curing plug of the piping material. The aim is to eliminate the drawbacks of the conventional system.

(Means for solving the problem) In order to achieve the above-mentioned object, the present invention is characterized in that, in the plug for protecting a connection port for piping materials inside a wall described at the beginning, a plug body that can be attached and detached to the connection port has a first drainage flow path that communicates with a piping flow path and opens to the outside of the wall, a drainage member having a second drainage flow path that communicates with the first drainage flow path is attached to the plug body, and a valve mechanism for opening and closing the first drainage flow path is provided between the drainage member and the plug body.

(Function) By opening the valve mechanism using the drainage member, the piping can be flushed before the faucet is installed, thereby eliminating clogging of the faucet due to foreign matter in the pipe.

(Example) Hereinafter, an example of the present invention will be described based on the drawings. Fig. 1 shows a connection port curing plug A used in faucet construction, in which the first drainage channel _P1 is A plug body 1 formed therein, a drainage member ₂ formed with a second drainage passage P2 communicating with the first drainage passage _P1 , and the first drainage constructed between the two 1 and 2. It consists of a valve mechanism 3 for opening and closing the flow path _P1 , and the plug body 1 and the drainage member 2 are each made of synthetic resin or metal such as aluminum die-casting.

Specifically, the plug main body 1 has a tapered circumferential surface (it may be a straight circumferential surface with the same diameter over the entire length) S that becomes slightly smaller in diameter toward the distal end,
A removable male screw part b is provided at the tip of a connection port a of a piping material (an elbow connected to a riser pipe 4 is exemplified) 5 installed in a location corresponding to the interior of the wall,
A different diameter fitting portion 6 for fitting a spanner or the like is provided at the rear end.

Then, the first drainage channel P1 extends over the entire length of the plug body ₁ so that it communicates with the piping channel R and opens outside the wall B with the male threaded portion b screwed into the connection port a. It is formed as follows.

This first drainage flow path _P1 has a larger diameter from the middle part in the flow path direction to the rear end side, and has an internally threaded portion c formed in the large diameter flow path portion, and a stepped portion having a conical surface shape. It constitutes the valve seat d of the valve mechanism 3.

On the other hand, the drainage member 2 has a rotary operating tool 7 in the longitudinally intermediate portion, and has a male threaded portion e screwed into the female threaded portion c of the plug body 1 on the tip side, and a male threaded portion e on the rear end side. Connection portions f of the hoses 8 are formed respectively.

Furthermore, in a state in which the male threaded portion e is screwed into the female threaded portion c of the plug body 1, the first drainage channel
Seal material g, g that is in close contact with the inner surface of the large diameter flow path part of _P1
, and the second drainage flow path P ₂ is formed in a T-shape so as to communicate with the large diameter flow path portion of the first drainage flow path P ₁ .

A valve body 9 that comes into contact with the valve seat d is attached to the distal end of the drainage member 2, and as the drainage member 2 is rotated by the rotary operating tool 7, the first drainage channel P is connected to the valve body 9. A valve mechanism 3 that opens and closes _{the valve 1} is configured.

As shown in FIG. 2, prior to the construction of wall B, curing plugs A, A, and curing plugs are inserted into the respective connection ports a, a of the piping materials 5, 5 for hot water supply and water supply, respectively, located inside the wall. A is screwed onto the wall B, and a position regulating member 10 for regulating the relative position of the connection ports a and a is installed between the plug body 1 and the drainage member 2 across both plugs A, A, and will be constructed.

After the construction of wall B is completed, the position regulating member 10 is taken out and the valve mechanism 3 is closed, and then the main valve (not shown) is opened and any curing plug A is opened. The valve mechanism 3 is opened to flush the piping up to the curing plug A.

After this flushing is completed, the valve mechanism 3 and the main valve are closed, and the curing plug A is screwed off from the piping material 5, and the plug A can be freely switched to the both piping materials 5, 5 after the plug is unscrewed, for example. The faucet installation work is completed by screwing on the hot water mixer faucet C.

In addition, the hose 8 is connected to the drainage member 2 so that the water discharge position can be changed arbitrarily, but as shown in FIG. Alternatively, as shown in FIG. 4, an L-shaped second drainage channel may be connected to the drainage member 2 so that the drainage is always directed downward regardless of whether the drainage member 2 is rotated. _P2 , and the drainage member 2 is provided to be rotatable and slidable in the axial direction with respect to the plug body 1, and the valve mechanism 3 is closed by contacting the flange 12 connected to the drainage member 2. A valve operation member 13 that can be maintained in a valve state is screwed onto the plug body 1, so that the drainage direction can be set at any position around the horizontal axis, and the valve mechanism 3 can be opened and closed in that position. It's okay to do that.

In addition, in the embodiment, a case is illustrated in which a hot water mixing faucet C is attached to piping materials 5 and 5 for hot water supply and water supply, but the invention is not limited to this, and various types of faucets with a single valve structure are attached. Needless to say, the plug of the present invention can be used for.

(Effect of the invention) As explained above, by using the connection port curing plug according to the invention, it is possible to flush the pipes with the plug attached, and after this flushing, the water faucet can be attached. By doing so, it is possible to avoid clogging of the faucet due to foreign objects in the pipe, and even if clogging occurs in the valve mechanism of the curing plug, this will not cause any practical problems and will be used next time. All you have to do is repair it in the meantime, and overall, by making a simple improvement by equipping the connection port curing plug with a valve mechanism,
It has become possible to flush the pipes before installing the faucet, which in turn has made it possible to prevent the faucet from clogging due to foreign objects in the pipe.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal cross-sectional view of a connection port curing plug, Fig. 2 is a perspective view showing the plug installed state before faucet installation, and Figs. 3 and 4.
The figures are cross-sectional views of plugs of different embodiments. FIG. 5 is a sectional view of a curing plug having a conventional structure. 1... Plug body, 2... Drainage member, 3...
Valve mechanism, 5... Piping material, a... Connection port, C...
Faucet, R...Piping channel, _P1 , _P2 ...Drain channel.

Claims (1)

[Scope of utility model registration request] Connection port curing for piping material inside the wall that is screwed into the connection port of the piping material at a location corresponding to the interior of the wall prior to wall construction, and that is unscrewed when a faucet is screwed onto the piping material after wall construction. a plug body which is detachable from the connection port, and has a first drainage channel that communicates with the piping channel and opens outside the wall, and a first drainage channel that communicates with the first drainage channel. A drainage member in which a second drainage channel is formed is attached to the plug body, and a valve mechanism for opening and closing the first drainage channel is provided between the drainage member and the plug body. Features: A plug for curing connection ports for piping materials inside walls.