JPS6016712Y2 - One trap - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a one-trap used in bathrooms, washrooms, etc., which is connected to the drain pipe and used to block bad odors from below.

As shown in FIG. 1 of the attached drawings, a one-trap normally has an inner cylinder 2' with open upper and lower ends that communicates with a drain pipe 1 to form a water storage space 3 around the inner cylinder 2'. An outer cylinder 4' with an open upper end and a closed lower end integrally provided with the inner cylinder 2' so as to surround the inner cylinder 2', and the inner cylinder 2' and the outer cylinder 4'.
It is composed of a one-piece body 5 with an open lower end and a closed upper end, which is arranged as a cannula with respect to the inner cylinder 2' so as to be located between the inner cylinder 2' and the inner cylinder 2'.

In this case, in the conventional one-trap, as shown in FIG. It had a structure that extended downwards.

Then, with the extending portion 7 of the inner cylinder 2' extending downward from the bottom part 6' of the outer cylinder 4' inserted into the drain pipe 1, the bottom part 6' of the outer cylinder 4' is inserted into the drain pipe 1. By placing it on the upper end, the entire one-trap was configured to be locked and held.

Therefore, the installation of this one trap is related to construction work.
There were the following problems.

That is, since the bottom part 6' of the outer cylinder 4' is placed on the upper end of the drain pipe 1 and retained, it is natural that
The upper end of the drain pipe 1 must be located below the outer surface 9 of the floor 8.

Therefore, during construction, the upper end of the drain pipe 1 must be cut at a preset position.

After that, the floor 8 is constructed, but due to errors during construction, the upper surface 9 of the floor 8 often becomes lower or higher than the set height.

When the upper surface 9 of the floor 8 becomes lower than the set height, the upper end of the outer cylinder 4' and the perforated plate 10 rise and protrude upward from the upper surface 9 of the floor 8, as shown in FIG. The drawback was that the appearance was extremely poor.

Conversely, when the upper surface 9 of the floor 8 becomes higher, a gap is created between the bottom part 6' of the outer cylinder 4' and the upper end of the drain pipe 1, and there is a risk that water may flow out of the drain pipe 1 through this gap.

In order to eliminate such defects, the upper surface 9 of the floor 8 must be precisely finished to a set height, which is the reason why the floor 8 is thick and difficult to construct.

The present invention was developed by focusing on these conventional shortcomings, and provides a new and useful one-trap that can easily and easily install floors in bathrooms, etc. with just a few structural improvements. This is what I am trying to do.

The embodiment of the present invention will be explained with reference to FIGS. 2 to 4 of the attached drawings. In the figure, 2 is an inner cylinder with an open top end, and on the outside of this inner cylinder 2, there is an inner cylinder. An outer cylinder 4 having an open upper end and a closed lower end is disposed so as to surround the outer cylinder 2 .

This outer cylinder 4 is formed integrally with the inner cylinder 2 through its bottom 6, and a water storage space 3 surrounding the inner cylinder 2 is formed between the inner cylinder 2 and the outer cylinder 4. It is configured.

The functions of the inner cylinder 2 and outer cylinder 4 are not particularly different from the conventional ones, but the noteworthy point is that the outer cylinder 4
The outer diameter of the drain pipe 1 is slightly smaller than the inner diameter of the drain pipe 1.

Another difference from the conventional one is that the lower end of the inner cylinder 2 does not extend below the bottom 6 of the outer cylinder 4, but in this regard, there is no particular need to extend it. , as in the conventional case, there is no problem even if it extends below the bottom part 6 of the outer cylinder 4.

Further, reference numeral 5 denotes a one-piece body with an open bottom end and a closed top end, and a perforated plate 10 is fixed to the upper part of the one-piece body 5 via screws 11.

This perforated plate 10 is locked and held by a locking ring 12 provided on the inner surface of the outer cylinder 4, so that the one body 5 can be
It is configured to be placed over the inner cylinder 2 and suspended between the inner cylinder 2 and the outer cylinder 4, but in this respect there is no particular difference from the conventional one.

Further, a locking flange portion 13 that extends outward in the radial direction of the outer tube 4 is integrally connected to the upper end portion of the outer tube 4, and this flange portion 13 is connected to the upper surface 9 of the floor 8. By placing it on the trap, the entire one-trap is locked and held.

Next, we will talk about the construction work involved in installing this one-trap, as well as the related construction methods such as the floor 8.
As shown in FIG. 3, various types of drain pipes 1 such as VU pipes and VP pipes are positioned higher than the upper surface 9 of the floor 8.

After that, the floor 8 is constructed, and then the drain pipe 1 is cut at a height that substantially coincides with the upper surface 9 of the floor 8.

Regarding this cutting operation, since the cutting is performed at a height that substantially coincides with the upper surface 9 of the floor 8, the cutting can be easily performed.

Thereafter, as shown in FIG. 4, the entire one-trap is assembled from above, and as shown in FIG. It will be placed in contact with the upper surface 9, and then finishing such as pasting tiles 20 on the upper surface 9 will be performed.

Therefore, even if the upper surface 9 of the floor 8 becomes somewhat lower or higher, the upper end of the outer cylinder 4 and the perforated plate 10 will not rise above the upper surface 9 of the floor 8, making it easy to construct the floor 8. It can be done.

As is clear from the above explanation, the one-trap according to the present invention has an outer cylinder with an open top end and a closed bottom end with a diameter smaller than the inside diameter of the drain pipe, and a diameter Since it is provided with a locking flange that extends outward in the direction, it has a simple structure that requires only slight modification to the conventional one-trap, and the flange is brought into close contact with the upper surface of the floor. It can be reliably locked and held.

Therefore, there is no problem even if the top surface of the floor becomes a little lower or higher, and construction work such as floors can be easily done.
It came to be possible to do it easily.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a conventional structure, FIG. 2 is a partially cutaway perspective view showing an embodiment of the one-trap of the present invention, and FIG.
4 and 4 are cross-sectional views showing the procedure for installation of the one-trap of the present invention. 1... Drain pipe, 2... Inner cylinder, 3...
...Water storage space, 4...Outer cylinder, 5...
One body, 13...flange part.

Claims (1)

[Scope of utility model registration request] an inner cylinder that communicates with the drain pipe; an outer cylinder with an open top and a closed bottom that is integrally provided with the inner cylinder so as to surround the inner cylinder to form a water storage space around the inner cylinder; A one-trap consisting of a one-piece body with an open lower end and a closed upper end, which is arranged as a mantle with respect to the inner cylinder so as to be located between the outer cylinder and the inner cylinder,
The outer diameter of the outer cylinder is configured to be smaller than the inner cylinder of the drain pipe, and the upper end of the outer cylinder is provided with a locking flange part that extends outward in the radial direction of the outer cylinder. One trap characterized by this.