JPH0315659Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a new composite drainage basin used in sewage piping work, and particularly to a drainage basin suitably used when there is a large head difference between the indoor plumbing level and the sewage pipe level.

Generally, when wastewater used at home is discharged into a sewer pipe, miscellaneous wastewater from the kitchen is first introduced into a trap pit to remove impurities, and then led to a confluence pit where it is combined with wastewater from the bathroom, etc. , piping has been constructed so that the water is discharged into the sewer pipe. However, if the road where the sewer pipe is buried is located far below the site and the drop to the sewer pipe is quite large, the slope from the confluence pipe to the sewer pipe will be too large, and the downstream side of the confluence pipe will be further removed. It becomes necessary to provide a drop box. Therefore, in piping work where the head to the sewer pipe is large, at least three pipes, a trap pipe, a merging pipe, and a drop pipe, are required, which increases the labor and cost of the construction work.

The present invention was developed in view of the above circumstances, and its purpose is to provide an extremely convenient composite drainage basin that combines the functions of three basins: a trap basin, a merging basin, and a drop basin.

That is, in order to achieve this object, the present invention integrally forms a trap section into which the tip of the first water conduit pipe is immersed and a drop section on both sides of the overflow wall, and This relates to a composite drainage basin with an open top end, in which a connection port for a second water pipe is provided on the side wall of the section at a position lower than the top end of the overflow wall, and a connection port for a drain pipe is provided in the bottom wall; This will be explained in detail below using examples.

Fig. 1 is a perspective view of an embodiment of the composite drainage basin of the present invention, Fig. 2 is a longitudinal cross-sectional view of the embodiment, and Fig. 3 is an explanatory diagram of the usage state of the embodiment. The drainage basin 1 has a circular upper end, and a fitting groove 2 is formed at the edge of the upper opening, and a cylindrical adjuster 9 for height adjustment is installed in the fitting groove 2 as shown in FIG. It is designed to be fitted and placed.

An overflow wall 3 is provided approximately at the center of the drainage basin 1, and a trap basin part 4 and a drop basin part 5 are integrally formed on both sides of the overflow wall 3.
The overflow wall 3 is a double wall formed by convexly curving the bottom wall of the basin, and is configured such that its upper end is lower than the upper opening edge of the basin. The trap section 4 on one side of the overflow wall 3 is formed into a cylindrical shape with a bottom, and as shown in FIG. The miscellaneous wastewater is temporarily stored. On the other hand, the drop box part 5 is formed in a bottomless cylindrical shape,
The side wall 6 has a socket-shaped connection port 7 connected to the overflow wall 3.
It is provided at a lower position than the upper end of the pipe, and as shown in FIG. 3, the second water conduit pipe 11 is inserted and connected thereto. Furthermore, a socket-shaped connection port 8 is also provided at the bottom of the drop basin portion 5, into which a drain pipe 12 can be inserted and connected as shown in FIG.

Note that the overflow wall 3 may be formed of a single plate, and by attaching this to the inside of the basin and dividing the inside of the basin into two, one side may be used as the trap basin part 4 and the other side as the drop basin part 5. Further, in FIG. 2, reference numerals 71 and 81 are stoppers for preventing excessive insertion of the water pipe and drain pipe, respectively.

When performing piping work using such a composite drainage basin 1 of the present invention, as shown in Fig. 3, first install this pipe to match the level of the second water pipe 11 that introduces wastewater from a bathroom, etc. A composite drainage basin 1 is buried in the soil, and the second water conduit 11 is inserted into the connection port 7 on the side wall of the drop basin part 5 and connected, and the upper end of the drain pipe 12 leading to a sewer pipe (not shown) is connected to the drop basin. Connect by inserting it into the connection port 8 at the bottom of the section 5. Then, the adjuster 9 for height adjustment is fitted into the fitting groove 2 at the upper opening edge of the composite drainage basin 1, and the tip of the first water conduit pipe 10 that introduces miscellaneous water from the kitchen etc. is connected to the adjuster. The adjuster 9 is inserted into the trap box part 4, and the upper end opening of the adjuster 9 exposed to the ground is covered with a box lid 13.

In this way, miscellaneous wastewater from the kitchen etc. is introduced into the trap pit 4 through the first water conduit pipe 10 and is temporarily stored therein, and the solids in the miscellaneous wastewater settle to the bottom of the trap pit 4 and are removed. Only the supernatant water flows over the overflow wall 3 and into the drop basin 5. and,
It joins with the wastewater that has flowed into the drop basin section 5 from the bathroom or the like through the second water pipe 11, and is discharged through the drain pipe 12 to the sewer pipe. In that case, the second water pipe 1
Since the first connection port 7 is provided at a lower position than the upper end of the overflow wall 3, even if wastewater flows in forcefully from the second water conduit 11, the wastewater collides with the overflow wall 3 and flows downward. Water is drained from the drain pipe 12. Therefore, the wastewater from the second water pipe 11 flows into the trap 4 over the overflow wall 3, and the wastewater in the trap 4 is agitated and solidified. There is no need for objects to float and flow over the overflow wall 3 into the drain pipe 12. Further, since the composite drainage basin 1 has a circular opening at the upper end, the trap basin part 4 and the drop basin part 5 can be easily cleaned by removing the basin lid 13.

As can be understood from the above explanation, the composite drainage basin of the present invention can collect miscellaneous wastewater from the kitchen, etc. and wastewater from the bathroom, etc. by just burying it in the drop basin section 5.
The trap 4 can prevent the odor from flowing back into the kitchen etc. through the first water pipe 10. Therefore, when the difference in head to the sewer pipe is large, trap pipes and
There is no need to install a total of three pipes, a confluence pipe and a drop pipe, and therefore the labor and cost of piping work can be significantly reduced. Moreover, by providing the connection port of the second water conduit at a lower position than the upper end of the overflow wall, the structure is configured such that wastewater from the second water conduit does not flow into the trap receptacle. The miscellaneous wastewater accumulated in the basin is disturbed and the settled solids do not flow over the overflow wall into the drain pipe, and since the upper end is open, the inside of the basin can be easily cleaned. Effects can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the composite drainage basin of the present invention, FIG. 2 is a longitudinal sectional view of the embodiment, and FIG. 3 is an explanatory diagram of the embodiment in use. 1... Composite drainage basin, 3... Overflow wall, 4... Trap basin, 5... Drop basin, 6... Side wall,
7, 8...Connection port.

Claims (1)

[Scope of utility model registration request] On both sides of the overflow wall, a trap section into which the tip of the first water conduit is immersed and a drop section are integrally formed, and a connection port for the second water conduit is connected to the side wall of the drop channel. A composite drainage basin with an open upper end, which is provided at a position lower than the upper end of an overflow wall and has a connection port for a drain pipe at the bottom of the drop basin part.