JPS6243032Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a corner trap drainage basin that is installed and used at the corner of a drainage channel.

Conventionally known trap drains used to remove bad odors from sewage are shown in Figures 1a and b, respectively.
Starting point trap drainage basin 100 shown in Figure 2a,
The left and right trap drainage basins 101 shown in b (only the left trap drainage basin is shown in the figure) were designed to be installed at the starting point of the drainage canal or in a straight line of the drainage canal ( In the figure, 10
2 is a trap, and 103 is a wastewater conduit).

In other words, in the past, there was no trap drainage basin that could be installed at the corner of the drainage canal, so it was necessary to attach an odor-proofing trap to the drainage basin installed near the corner of the drainage canal, or to use a conventional trap as shown in Figure 3. Instead, a trap drainage basin 106 of a simple structure, which is constructed by attaching an inverted elbow pipe 105 as a water conduit to the drainage basin main body 104, is used as a substitute.

However, when attaching an odor-prevention trap to a drainage basin, not only is it necessary to prepare an odor-prevention trap suitable for the drainage basin, but installation is generally troublesome, and it is difficult to install the odor-prevention trap as shown in Figure 3. When the trap drainage basin 106 is used, a problem arises in that the elbow pipe 105 easily becomes clogged if foreign matter is mixed in the wastewater.

The present invention was developed in view of the above circumstances, and the purpose is to provide a corner trap drainage basin with a simple structure and good stability, which can be installed at the corner of a drainage channel to remove the foul odor of sewage. This is what I did.

An embodiment of the invention will be described below with reference to the accompanying drawings. As shown in FIGS. 4 and 5, the drainage basin A of the present invention has a bending angle of approximately 90 degrees in the drainage basin main body 1. An inverted groove 2 is formed to change the flow of sewage introduced into the drainage basin A to a substantially right angle direction, and a trap reservoir is provided at the inner corner of the corner 2a of the inverted groove 2. 3. The tip of an elbow-shaped water conduit 4 is made to face the trap reservoir 3.

That is, when wastewater is led into the main body part 1 of the drainage pipe 4, it is poured into the trap reservoir 3, overflows from the trap reservoir 3, and further flows into the above-mentioned invert groove 2 through the communication passage 5. The structure is such that the water is discharged to the outside of the main body part 1 from the drain port 6 of the invert groove 2.

In addition, the side opposite to the drain port 6 of the invert groove 2 is
A water inlet 7 is formed so that wastewater flowing from the upstream side of the drainage channel is also introduced into the invert groove 2 for drainage.

However, the invented drainage basin A with such a structure
According to the method, by simply connecting the front and rear ends of the invert groove 2, that is, the water inlet 7 and the drain port 6, to the drain channel B, as shown in FIG.
can be easily installed.

If installed at the corner C of the drainage channel B, the sewage introduced into the main body 1 through the water pipe 4 will flow into the trap 3, and some of it will overflow from the trap 3 and be inverted. It flows into the groove 2 and is discharged downstream from the discharge port 6.

Therefore, due to this trapping effect, the bad odor accumulated in the main body of the drain basin will not flow back through the water conduit pipe 4.

Drainage basins that can be installed at corner C of drainage canal B by providing an inverted groove to change the flow of sewage almost at right angles are generally lighter at the inner corners of drainage canal B, There is a dislike that the drainage basin A tends to fall down towards the outside of the corner part C, but according to the drainage basin A of the present invention, a trap reservoir 3 is provided at the inner corner of the invert groove 2. Since the waste water introduced from the water pipe 4 is stored, stability is good and there is no risk of uneven settlement.

In addition, when forming the drainage basin A of the present invention, the axis of the invert groove 2 should be located outward from the center point of the basin main body 1, as shown in FIG. For example, the radius of curvature of the invert groove 2 can be increased, and the resistance to the flow of wastewater can be reduced, so there is an advantage that the wastewater can be drained smoothly.

As can be understood from the above explanation, the corner trap drainage basin of the present invention has a simple structure and good stability, can be easily installed at the corner of a drainage canal, and has a drainage function and a trap. It is useful and has high practical value as it has both functions.

[Brief explanation of the drawing]

Figures 1a and b and Figures 2a and b are views showing the structure of conventionally known trap drainage basins, and Figure 1a is a plan view of the starting point trap drainage basin;
Figure 1b is a vertical cross-sectional view of the trap, Figure 2a is a plan view of the left trap drainage basin, Figure 2b is a vertical cross-sectional view thereof, Figure 3 is a diagram showing a conventionally known simple trap drainage basin, Fig. 4 is a plan view of the corner trap drainage basin of the present invention, Fig. 5 is a partially cut away vertical sectional view thereof, and Fig. 6 is an explanatory diagram of the usage state of the drainage basin of the invention. In the explanation of symbols and figures, A is the corner trap drainage basin of the present invention, B is the drainage channel, C is its corner part, 1 is the drainage basin main body, 2 is the invert groove, 2a is the corner part, and 3 is the trap. It is a reservoir.

Claims (1)

[Scope of utility model registration request] This corner trap drainage is characterized in that an invert groove for changing the flow of sewage is provided in the main body of the drainage basin, and a trap reservoir is formed at the inner corner of the corner of the invert groove.