JPH0421920Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a drainage basin interposed in the middle of domestic gray water piping.

[Conventional technology]

When drainage from the upper floors of a multi-story building is combined with drainage flowing through a main pipe on the premises, an introduction path is provided in a drainage basin interposed in the middle of the main pipe, and the drainage point on the upper floor is led into this introduction path. The pipes are connected. Conventionally, examples of drainage basins having an inlet channel are shown in FIGS. 4 and 5. These drainage basins M have a groove-shaped straight main channel 2 penetrating the bottom of the bottomed container 1, and an introduction channel 3 formed in the groove shape at the bottom thereof at an angle of about 45 degrees, communicating with it.
A raised wall 4 is formed at a location where the main channel 2 and the introduction channel 3 communicate with each other. In the drainage basin shown in Figure 4, the entrance 5 of the main flow path 2 and the entrance 6 of the introduction path 3 are separated by about 45 degrees, while in the drainage basin shown in Figure 5, the entrance 5 of the main flow path 2 is separated by approximately 45 degrees. and the entrance 6 of the introduction path 3 are separated by about 90 degrees. In addition, Figures 4 and 5
In the figure, arrows A and B indicate the flow direction of drainage in the main channel 2 and the introduction channel 3, respectively.

Therefore, for example, as shown in Figure 6, a multi-story building H
A drainage basin M shown in Fig. 4 is interposed in the middle of the main pipe 100 in the premises of Let us consider a case in which the inlet 5 is connected to the inlet 5 of the introduction path 3 via the right-angled elbow 102 and the extraction pipe 103.

When performing piping construction like this, the downpipe 1
01, the right-angle elbow 102, and the extraction pipe 103, the direction is only changed (turned) in the right-angled direction at the right-angle elbow 102, and the wastewater coming out from the drainage point P stands up vigorously. It flows down the downpipe 101, stalls a little as it passes through the right-angled elbow 102, enters the draw-out pipe 103, and further flows into the main channel 2 through the introduction channel 3. However, since the wastewater flowing into the main flow path 2 through the introduction path 3 is stalled at only one point in the pipe, the momentum at the time of inflow is still strong. Immediately before entering the main channel 2, it collides with the raised wall 4 explained in FIG. Cheap. When the drainage water rides up on the raised wall 4 and the channel walls on both sides of the main channel 2 in this way, foreign matter in the drainage water adheres and accumulates on them, impairing the drainage function of the drainage basin M and being unfavorable from a sanitary standpoint. bring about a situation. This tendency is remarkable when the wastewater is sewage. Moreover, when the drainage collides with the raised wall 4 as mentioned above,
Drainage tends to flow back into the introduction channel 3.

Therefore, in order to make it difficult for the drainage water to run over the raised wall 4 or the channel wall, piping construction as shown in FIG. 7 or 8 has conventionally been carried out.

In the one in Figure 7, the terminal end of the extraction pipe 103 is
It is connected to the inlet 6 of the introduction passage 3 of the drainage basin M shown in FIG. 4 via a degree elbow 104. According to this, since the drainage is diverted at two points in the pipe leading from the drainage point P to the introduction path 3, the right angle elbow 102 and the 45-degree elbow 104, the introduction path 3 is different from the case shown in FIG. The force of the drainage water flowing into the main channel 2 from the introduction channel 3 is weakened, and as a result, the drainage water flowing into the main channel 2 from the introduction channel 3 becomes difficult to climb onto the raised wall 4 and the channel wall, and at the same time, it becomes difficult for the drainage water to flow back into the introduction channel 3.

The one in FIG. 8 is an example in which the drainage basin M shown in FIG. 107, and connect the down pipe 10 to this pipe 107 via a 45 degree elbow 108.
9, and attach a right angle elbow 1 to this downpipe 109.
A draw-out pipe 111 is connected through 10, and this draw-out pipe 111 is connected to the inlet 6 of the introduction passage 3 of the drainage basin A. According to this, when the wastewater coming out of the drainage point P passes through the three elbows 106, 108, and 110, it turns and gradually stalls, so the force of the wastewater flowing into the introduction path 3 is weakened compared to the case shown in FIG. It becomes difficult for wastewater to climb up on the raised wall 4 and the channel wall, and at the same time, it becomes difficult for the wastewater to flow back into the introduction channel 3.

[Problem that the invention attempts to solve]

In the conventional drainage basin M shown in FIGS. 4 and 5, the main channel 2 and the introduction channel 3 are set at approximately the same level, and are only separated by a raised wall 4. Unless the flow velocity of the wastewater flowing through the introduction path 3 is made extremely slow, it is impossible to completely eliminate the drainage from running over the raised wall 4 and the channel wall, or the backflow of the wastewater into the introduction path 3. However, in order to slow down the flow rate of wastewater, it is necessary to change the flow direction of the wastewater by bending the pipe at multiple points as explained in Figures 7 and 8. Not only are extra parts required, which lowers economic efficiency, but the more bends the pipe has, the greater the resistance to the flow of wastewater, making it difficult for the wastewater to flow smoothly.

In this way, conventional methods have been used to reduce the force of drainage by making it difficult for the drainage to flow in the pipe from the drainage point to the introduction path of the drainage basin, thereby reducing the flow of drainage into the raised walls of the drainage basin and the channel walls. Because the system prevents overflow and backflow, there were problems such as lower economic efficiency due to the increased number of piping parts, and problems that the smoothness of drainage was hindered.

This idea was created in view of the above problems.
The purpose is to eliminate the need to reduce the flow velocity of wastewater and eliminate any room for drainage to run over or backflow by devising a drainage basin itself.

[Means for solving problems]

The drainage basin of the present invention includes a groove-shaped straight main channel penetrating the bottom of the bottomed container, and an introduction channel for introducing wastewater into the main channel, and the introduction channel has an inlet portion for the wastewater into the main channel. The inlet portion is characterized in that the inlet portion communicates via a tubular turning portion with an outlet portion extending parallel to the main flow path and opening at the upper portion of the main flow path.

[Effect]

According to the drainage basin of the present invention, the waste water that has flowed into the inlet part of the introduction channel reaches the outlet part through the diversion part, and flows into the main flow channel at the lower part of the outlet part through the opening of the outlet part.

〔Example〕

FIG. 1 is a plan view of a drainage basin according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line - in FIG. A groove portion 1a is formed on the outer periphery of the upper end of the container 1, which has a bottomed dish shape or a bottomed cylindrical shape, into which a manhole cover or an adjuster (cylindrical member) for adjusting the burial depth is attached. Further, the container 1 includes a groove-shaped straight main channel 2 passing through the bottom thereof, and an introduction channel 3 for introducing waste water into the main channel 2. Inlet channel 3 is main channel 2
, and one example of its inlet portion extends in a direction perpendicular to the main flow path 2 . Further, an outlet portion 12 is communicated with the inlet portion 10 of the introduction passage 3 via a tubular turning portion 11 bent at right angles. This outlet portion 12 extends parallel to the main channel 2 and opens at the top of the main channel 2. Reference numeral 13 denotes an opening formed at the terminal end of the outlet portion, the peripheral edge of which is an inclined edge slanting upward. In addition, 14
1 is the inlet of the introduction channel 3, 15 is the inlet of the main channel 2, 1
Reference numeral 6 denotes an outlet of the main flow path 2, and in the illustrated drainage basin, the inlet 14 of the introduction channel 3 is separated from the inlet 15 of the main flow path 2 by about 90 degrees. This separation angle may be 45 degrees or any other angle.

FIG. 3 shows the above-mentioned drainage basin in use. As shown in the figure, the pipe connecting the drainage point P on the upper floor of the multi-story building H and the drainage basin M is the 6th pipe.
Like the one explained in the figure, it has the simplest conduit structure without the downpipe 101, right angle elbow 102, and outgoing pipe 103. According to this, the waste water discharged from the drainage point P flows forcefully into the introduction path 3 through a conduit consisting of a down pipe 101, a right-angled elbow 102, and a pull-out pipe 103. Then, it passes through the inlet portion 10, turning portion 11, and outlet portion 12 of the introduction channel 3, and is dropped into the main channel 2 from the opening 13. In this case, since the flow direction of the wastewater flowing into the main flow path 2 from the introduction channel 3 is the same as the extending direction of the main flow path, even if the force of the wastewater is not attenuated, the flow of wastewater flows into the flow paths on both sides of the main flow path 2. Don't climb up the wall.

[Effect of idea]

In the drainage basin of the present invention, the outlet part of the introduction passage extends parallel to the main passage, and the exit part opens at the top of the main passage, so that the drainage water that has passed through the introduction passage is formed into a drainage basin. It falls into the main channel without colliding with any wall part. Therefore, even if the wastewater flows into the introduction channel with force, there is no room for the problem of drainage overflowing as described in the conventional example, and at the same time, there is no backflow of wastewater into the introduction channel, and the drainage flow is smoother. gender is ensured.

[Brief explanation of the drawing]

Figure 1 is a plan view of a drainage basin according to an embodiment of the present invention, Figure 2 is a sectional view taken along the - line in Figure 1, Figure 3 is a schematic perspective view showing the usage status of the drainage basin of the invention, and Figure 4. Figures 6 and 5 are plan views of conventional examples;
FIG. 8 is a schematic perspective view showing a conventional drainage basin in use. 1...Container, 2...Main channel, 3...Introduction channel, 1
0...Inlet part, 11...Turning part, 12...Exit part, 13...Opening, M...Drainage.

Claims (1)

[Scope of utility model registration request] A straight channel-shaped main channel penetrating the bottom of the bottomed container, and an introduction channel for introducing wastewater into the main channel, the introduction channel extending in a direction in which an inlet portion of the wastewater intersects the main channel, The inlet portion is in communication with an outlet portion extending parallel to the main flow path and opening at the top of the main flow path via a tubular turning portion.