JPS5825034Y2 - Connection pipe for flush toilet - Google Patents

Description

[Detailed description of the invention] This invention relates to a connecting pipe that connects the drain port of a flush toilet, such as a seated toilet bowl, to a drain pipe. The purpose is to provide a connecting pipe that requires fewer parts compared to construction.

Conventionally, when connecting a drain pipe to a seated toilet, as shown in Fig. 2, a lead pipe 2 is inserted into a tapered pipe 1' of a flange 1 fixed to the floor surface, expanded, and tightly engaged with the inner surface of the tapered pipe. , a toilet bowl 3 is placed inside the tapered cylinder 1' of the flange 1.
The toilet bowl 3 is fixed to the flange 1 with bolts and nuts by fitting the drain port 3', and then the lower end of the lead pipe 2, which has a small diameter that matches the lower end of the lead pipe 2 that protrudes downward from the lower end of the tapered pipe 1' of the flange 1, is fitted. A large diameter drain pipe 6 is connected to the pipe 4 via a socket 5.

Therefore, the lead pipe 2 attached to the flange 1 and the large diameter drain pipe 6
In order to connect the pipes, a small-diameter pipe 4 and a socket 5 were required, and the piping construction was troublesome.

Therefore, the present invention solves the above-mentioned conventional inconveniences and makes it possible to connect a large-diameter drain pipe directly to a lead pipe attached to a flange. and a lead pipe having a diameter that closely engages with the inner surface of the drain pipe, whose upper half in the longitudinal direction is narrowed to a diameter that fits into the tapered cylinder, and a ring-shaped recess into which the lower edge of the tapered cylinder fits. The lower edge of the tapered cylinder is fitted into the concave part of the lead pipe, and the upper half of the lead pipe is expanded outward to tightly engage the inner surface of the tapered cylinder, and the lower half of the lead pipe is fitted into the concave part of the tapered cylinder. It is characterized in that it protrudes further downward and can be freely fitted and connected to a drain pipe.

Hereinafter, one embodiment of the present invention will be described based on the drawings.
Reference numeral 7 designates a flange that is fixed on the floor surface, and a tapered tube 7' inclined in a cradle shape is integrally formed on this flange, and a lead pipe 8 is integrally and securely attached to this tapered tube 7'. be.

One end of the lead pipe 8 is inserted into the tapered pipe 7' of the flange 7, and is expanded outward to tightly engage the tapered pipe 7', and the lead pipe 8 is folded outward at the lower edge of the tapered pipe 7'. At the same time, it is raised upward to surround the lower part of the tapered tube 7' from the inside and outside, and the raised part hangs downward to be connected to the drain pipe 6.

That is, the lead pipe 8 has a diameter that is fitted inside the drain pipe 6 for close engagement, and its upper half in the longitudinal direction is formed into a tapered pipe 7'.
At the same time, the diameter is narrowed down to a diameter that fits inside the pipe, and a ring-shaped recess 9 is formed into which the lower edge of the tapered tube 7' fits, and the inner side (upper half) forming the recess 9 is expanded outward. The flange 7 is opened and tightly engaged with the inner surface of the tapered tube 7' to integrate the flange 7 and the lead pipe 8, and the lower half of the lead pipe 8 is made to protrude downward from the tapered tube 7' to connect the drain pipe 6. It can be freely mated and connected.

With the above configuration, the drain pipe 6 can be directly connected to the lead pipe 8.

Incidentally, in FIG. 2, members denoted by the same reference numerals as in FIG. 1 indicate the same members.

By having the flush toilet connection pipe of the present invention configured as described above, a large-diameter drain pipe can be fitted and connected to a lead pipe integrated with a flange as it is, and piping construction can be performed very easily.

Therefore, the small-diameter pipes and sockets used to connect the small-diameter pipes and the large-diameter drain pipes that were used in the past are completely unnecessary, reducing the number of parts required for piping, and reducing the number of connection points. This makes it possible to create piping that is

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, with FIG. 1 being a longitudinal sectional view with a portion cut away, and FIG. 2 being a sectional view showing a conventional structure. In the diagram, 3: Toilet bowl, 3': Toilet bowl drain port, 6: Drain pipe, 7
: Flange, 7': Part of taper, 8: Lead pipe.

Claims (1)

[Scope of utility model registration request] A connecting pipe that is installed and fixed on the floor to connect the drain outlet of a toilet bowl and a drain pipe that is piped under the floor. It is composed of a lead pipe that has a diameter that tightly engages with the inner surface of the pipe, and the upper half of the length in the longitudinal direction is narrowed to a diameter that fits into the tapered cylinder, and a ring-shaped recess into which the lower edge of the tapered cylinder fits is formed. Then, the lower edge of the tapered cylinder is fitted into the concave part of the lead pipe, and the upper half of the lead pipe is expanded outward to tightly engage the inner surface of the tapered cylinder, and the lower half of the lead pipe is positioned below the tapered cylinder. A connecting pipe for flush toilets that protrudes and can be freely fitted and connected to a drain pipe.