JPH0893025A - S-form trap - Google Patents

Abstract

PURPOSE: To provide possibility of enlarging and shrinking the vertical dimension of an S-trap by fitting a movable connection pipe by threads on a downward extension pipe part dangling at the downstream of a water seal pipe part, and rotating the connection pipe and moving in the vertical direction. CONSTITUTION: A downward extension pipe part 4 provided with male threads on the periphery is dangled at the downstream side of a water seal pipe part 5 formed in S-shape, and the body 1 of an S-trap is constructed. Then a movable connection pipe 2 provided with female threads on the bore surface is fitted on the downward extension pipe part 4, and when the pipe 2 is rotated, it moves vertically relative to the extension pipe part 4, and the vertical dimension of the S-trap is enlarged or shrunk. The S-trap is connected with a drainage pipe 3 situated lower by fitting the connection pipe 2 in the drainage pipe 3 situated lower.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an S-shaped trap provided in the middle of a drainage pipe such as a wash basin to seal off odors in the drainage pipe.

[0002]

2. Description of the Related Art Conventionally, in drainage pipes such as washbasins,
To prevent the unpleasant odor in the drain pipe from flowing back,
An S-shaped trap for water sealing the odor is provided in the middle of the drain pipe. As the S-shaped trap, for example, as shown in FIG. 3, an S-shaped water-sealed pipe portion (C) and a downwardly extended pipe portion () extending downward from the water side of the water-sealed pipe portion (C) ( The S-shaped trap consisting of (1) and (2) is generally used. This S-shaped trap connects the upper water side of the water sealing pipe (c) to the upper drain pipe directly connected to the drain of the washbasin, etc., while the lower extension pipe (a) connects to the lower drain pipe. It is used by connecting to the drainage pipe.

[0003]

However, in the conventional S-shaped trap, the distance between the upper drainage pipe and the lower drainage pipe on which the S-shaped trap is installed is smaller than the vertical dimension of the S-shaped trap. In the case of a large size, it was necessary to provide an extension pipe either above or below the S-shaped trap.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an S-shaped trap which can cope with a large distance between a higher drain pipe and a lower drain pipe. However, more specifically, the present invention provides an S-shaped trap whose vertical dimension is flexible.

[0005]

The S-shaped trap of the present invention comprises a water-sealed tube portion 5 formed in an S-shape, and this water-sealed tube portion 5.
S-shaped trap body 1 having a downwardly extending pipe portion 4 having an external thread formed on its outer peripheral surface, which hangs from the underwater side, and an inner peripheral surface that is screwed to the downwardly extending pipe portion 4 in a vertically movable manner. It is characterized in that it comprises a movable connection pipe 2 having a female screw formed on the.

[0006]

In the S-shaped trap of the present invention, when the movable connecting pipe 2 is rotated, the movable connecting pipe 2 moves up and down with respect to the downward extending pipe portion 4 to expand and contract the vertical dimension of the S-shaped trap. You can

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings shown as embodiments.

FIG. 1 (a) is a perspective view showing an example of the S-shaped trap of the present invention, and FIG. 1 (b) is a sectional view of an essential part of the S-shaped trap shown in (a). FIG. 2 is a side view showing an example of use of the S-shaped trap of the present invention.

The S-shaped trap of this embodiment has an S-shaped water sealing tube portion 5 and a downwardly extending downwardly extending male thread formed on the outer peripheral surface of the water sealing tube portion 5 which hangs from the water side of the water sealing tube portion 5. It is composed of an S-shaped trap body 1 composed of an outlet pipe portion 4 and a movable connecting pipe 2 which is internally movably screwed into the downward extension pipe portion 4 and which has an internal thread formed therein.

More specifically, the water-sealed tube portion 5 of the S-shaped trap body 1 has a shape like "S" in a horizontal direction, and a cap nut 6 is provided at the upper end of the water side opening upward. ing. A water drain plug 7 is provided in the upward U-shaped portion 8 that hangs down from the water upper end portion of the water sealing tube portion 5 and that further curves and rises upward. The upward U-shaped portion 8 of the water sealing tube portion 5 is a portion where water is always accumulated when the S-shaped trap is used.

The downward extension tube portion 4 of the S-shaped trap body 1 is
It is a straight pipe that hangs down from the water side of the water sealing pipe portion 5, and a male screw is formed on the outer peripheral surface thereof over the lower extension pipe portion 4.

The movable connecting pipe 2 is a straight pipe formed with female threads which are screwed into male threads of the downward extending pipe portion 4 and are formed above and below the inner peripheral surface, and the outer periphery of the downward extending pipe portion 4 is formed. It is screwed to the side so that it can move up and down. When the movable connecting pipe 2 is rotated, the movable connecting pipe 2 moves up and down with respect to the downward extending pipe portion 4 to expand and contract the vertical dimension of the S-shaped trap.

Next, the connection form of the S-shaped trap will be described. The S-shaped trap is, for example, as shown in FIG.
It is used by being interposed between an upper drain pipe 9 directly connected to the drain of the wash bowl of the washbasin and a lower drain pipe 3 leading to the sewer pipe.

As shown in FIG. 1 (a), the upper water drain pipe 9 is connected to the upper water end of the S-shaped trap body 1, that is, the upper water end of the water sealing pipe portion 5. At this time, a male screw is formed at the lower end of the upper drain pipe 9, and the cap nut 6 is screwed to the lower end of the upper drain pipe 9 to connect the water sealing pipe portion 5.

The movable connection pipe 2 is fitted and connected to the lower drainage pipe 3. The upper end of the lower drainage pipe 3 is the movable connection pipe 2
Has an inner diameter that allows the insertion. At this time, the distance between the lower end of the upper drain pipe 9 and the upper end of the lower drain pipe 3 is
When the distance between the upper water end and the lower water end of the S-shaped trap body 1, that is, the distance between the upper water end of the water sealing pipe portion 5 and the lower end of the downward extension pipe portion 4 is larger, the movable connecting pipe 2 is rotated to lower the downward extension pipe. When the movable connecting pipe 2 is moved so as to extend downward with respect to the portion 4, the movable connecting pipe 2 can be fitted into the lower drain pipe 3.

In the S-shaped trap connected between the upper drain pipe 9 and the lower drain pipe 3 as described above, when water is flown from the upper drain pipe 9, it passes through the S-shaped trap to the lower drain. Flows to the drainage pipe 3 of. At this time, the upward U-shaped portion 8 of the water sealing tube portion 5 of the S-shaped trap is always filled with water. Then, the water filled in the upward U-shaped portion 8 serves as a partition wall to block the ventilation from under water to above water inside the S-shaped trap. Therefore, it is possible to prevent the unpleasant odor of sewage generated in the lower drainage pipe 3 leading to the sewer pipe from flowing back to the upper drainage pipe 9 and leaking out from the drain of the wash bowl. The water accumulated in the water sealing tube portion 5 can be drained from the drain plug 7 as needed.

[0017]

The S-shaped trap of the present invention is provided with the movable connecting pipe 2
When is rotated, the movable connecting pipe 2 moves up and down with respect to the downward extending pipe portion 4, and the vertical dimension of the S-shaped trap can be expanded and contracted. Therefore, even when the distance between the upper drainage pipe and the lower drainage pipe is large, it is possible to cope with the situation.

[Brief description of drawings]

FIG. 1A is a perspective view showing an example of an S-shaped trap of the present invention, and FIG. 1B is a sectional view of an essential part of the S-shaped trap shown in FIG.

FIG. 2 is a side view showing a usage example of the S-shaped trap of the present invention.

FIG. 3 is a perspective view showing a conventional S-shaped trap.

[Explanation of symbols]

 1 S-type trap body 2 Movable connection pipe 4 Downward extension pipe part 5 Water sealing pipe part

Claims (1)

[Claims] 1. An S-shaped water-sealed pipe portion 5 and an S-shaped downwardly extending pipe portion 4 having a male screw formed on an outer peripheral surface thereof and extending downward from the water-sealed side of the water-sealed pipe portion 5. Shaped trap body 1
And an M-shaped trap having a female screw formed on the inner peripheral surface thereof, which is screwed into the downwardly extending pipe portion 4 so as to be vertically movable.