JPH0687498U - Sewage basin - Google Patents

Abstract

(57) [Summary] [Purpose] An object of the present invention is to provide a sewage basin in which the upstream sewage pipe and the downstream sewage pipe are connected to each other so that sewage impurities do not adhere to the sewage basin even after long-term use. And [Structure] The inner peripheral surface 1b of the sewage basin body 1 is formed in a hemispherical shape, and the bottom surface thereof has an arc surface 4a of the inner peripheral surface 1b.
The gutter-shaped part 4 is provided continuously with the gutter-shaped part 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sewage basin used for connecting an upstream mounting pipe and a downstream mounting pipe.

[0002]

[Prior art]

 Conventionally, this type of sewage basin 11 has a recessed portion 13 which is continuous with the outflow hole 12 as shown in FIGS. The inclined surface 15 is provided to form an inner bottom portion.

[0003]

[Problems to be solved by the device]

 However, in the conventional sewage basin 11 described above, since the connecting portion between the inner peripheral surface 14 and the inclined surface 15 and the connecting portion between the concave portion 13 and the inclined surface 15 are formed to be angled and bent, When the sewage flows into the sewage basin 11, impurities contained in the sewage will adhere to the connecting portions. Therefore, when used for a long time, there is a problem that impurities adhering to each connection part accumulate and hinder the outflow of sewage.

Moreover, there is a drawback in that the work of removing impurities adhering to the inside of the sewage basin is very complicated and costly.

The present invention has been devised in view of the above problems, and an object thereof is to provide a sewage basin in which impurities do not adhere to the inside of the sewage basin even after long-term use.

[0006]

[Means for Solving the Problems]

 The technical means for solving the above problems of the present invention is that the inner peripheral surface 1b of the sewage basin body 1 is formed in a hemispherical shape, and the bottom portion thereof is connected to the circular arc surface 4a of the inner peripheral surface 1b. The gutter-shaped part 4 is provided.

[0007]

[Action]

 That is, when the sewage basin is used, the sewage basin body 1 is first buried, and then the downstream mounting pipe and the upstream mounting pipe are connected to the sewage basin body 1. If the upstream mounting pipe will be connected later, a cap should be embedded in the upstream mounting pipe connection part of the sewage basin body 1, and then the cap should be removed during upstream construction to connect the upstream mounting pipe. Becomes

As a result, the sewage that has flowed into the sewage basin body 1 through the upstream mounting pipe flows into the trough-shaped portion 4 provided at the bottom of the inner peripheral surface 1b, and is attached downstream through the trough-shaped portion 4. It will be discharged into a pipe. At this time, even if the sewage overflows the trough-like portion 4 in the sewage basin body 1 or the sewage flows from the intermediate block built on the sewage basin body 1, the inner peripheral surface 1b becomes hemispherical. Since the gutter-shaped part 4 provided at the bottom of the inner peripheral surface 1b is continuously provided by the arcuate surface 4a, sewage flows out without impurities being accumulated in the sewage basin body 1. Will be done. Therefore, impurities do not adhere and accumulate in the sewage basin body 1.

Further, when the upstream mounting pipe is connected later, since the upstream mounting pipe connecting portion of the sewage basin body 1 is closed with a cap, earth and sand, groundwater, etc. will be stored in the sewage basin body 1 at the time of burying. In addition to being able to prevent infiltration, when connecting the upstream mounting pipe, it is possible to connect by simply removing the cap, and workability is excellent.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a sewage basin body having an open upper surface in which an inner surface 1b is formed into a semi-spherical shape, and an outer peripheral surface 1a of the sewage tub body. Sockets 1C, which bulge like a lip, project backwards, and an inflow hole 2 and an outflow hole 3 having a diameter larger than that of the inflow hole 2 are bored in the socket 1C. At the bottom of the peripheral surface 1b, a trough-shaped portion 4 is formed continuously with the circular arc surface 4a of the inner peripheral surface 1b between the inflow hole 2 and the outflow hole 3.

Reference numeral 5 denotes a tubular joint for integrally connecting the inflow hole 2 and the outflow hole 3 for connecting a tubular body made of synthetic resin, and 6 blocks the opening of the inflow hole 2 side joint 5. It shows a cap that is removably fitted.

Next, the case of using the sewage basin 7 having the above structure will be described.

As shown in FIG. 4 (a), first, the downstream mounting pipe 8 is inserted into the joint 5 fixed to the outflow hole 3 of the sewage basin 7, and the band 5a is attached to the outer periphery of the end of the joint 5. By tightening, the downstream mounting pipe 8 is connected to the outflow hole 3.

Further, the cap 6 that closes the opening of the joint 5 on the inflow hole 2 side is removed, the upstream mounting pipe is inserted into the joint 5, and the band 5a is tightened at the outer peripheral portion of the end of the joint 5. By doing so, the upstream attachment pipe is connected to the inflow hole 2.

Next, the upper block 9 is appropriately stacked on the upper part of the sewage basin 7 to form the entire basin, and the upstream mounting pipe is connected to the joint 5 fixed to the inflow hole of the sewage basin 7. If it comes later, since the opening of the joint 5 is closed by the cap 6, it is possible to prevent soil, groundwater, and the like from entering the sewage basin 7 at the time of burying and after the burying.

As a block for connecting the upstream mounting pipe in the upper part of the sewage basin 7, as shown in FIGS. 3A, 3B, and 3C, the socket 10b is attached to the outer peripheral surface 10a of the cylindrical body. It bulges out in a lip shape, and the inflow hole 2 is bored in the socket 10b to form the intermediate block 10 for connecting the pipe body. Reference numeral 5 denotes a joint integrally fixed to the inflow hole 2, and 6 denotes a cap.

A case where the downstream mounting pipe 8 and the upstream mounting pipe 8a are connected using the intermediate block 10 will be described.

As shown in FIGS. 4, (b) and (c), the downstream mounting pipe 8 and the upstream mounting pipe 8a are connected to the sewage basin 7 in the manner described above. Next, the intermediate block 10 is loaded on the upper part of the sewage basin 7, and the intermediate block 10 is rotated in the direction in which the other upstream mounting pipe 8a is provided, so that the intermediate block 10 can be installed in the inflow hole 2 and the upstream mounting hole. Face the tube 8a. After that, the cap of the joint 5 fixed to the inflow hole 2 is removed, the upstream attachment pipe 8a is inserted, and the band 5a is fastened at the outer peripheral portion of the end of the joint 5, so that the upstream attachment pipe 8a is inserted into the inflow hole 2. Will be connected. At this time, in the case where the direction of the upstream mounting pipe 8a is set to be, for example, a direction of approximately 135 degrees clockwise in a plan view with respect to the downstream mounting pipe 8, the intermediate block 10 is rotated by approximately 135 degrees and the upstream mounting pipe 8a is rotated. The inflow hole 2 can be connected so as to face 8a. That is, since the intermediate block 10 is rotatable 360 degrees, it is possible to deal with the upstream mounting pipe 8a provided in any direction.

Although one intermediate block 10 is loaded on the upper part of the sewage basin 7 in the above-mentioned use example, the number of intermediate blocks 10 loaded on the sewage basin 7 is not limited to this. Depending on the number of attachment pipes, multiple stages can be stacked arbitrarily, and upstream attachment pipes in all directions can be reliably connected.

When sewage flows into the sewage basin 7 through the upstream mounting pipe 8 a connected in this way, the sewage flows down in the trough-shaped portion 4 and flows through the outflow hole 3 to the downstream mounting pipe 8. It will be leaked. At this time, the inflow hole 2 or the outflow hole 3 and the joint 5 are integrally fixed, the joint 5 and the downstream mounting pipe 8 or the upstream mounting pipe 8a are connected in a water-stopped state, and the band 5a is used. Since it is fastened, it prevents external groundwater and miscellaneous water from entering the basin, and can reliably prevent sewage from leaking from the side of the mounting pipe, which is extremely effective in stopping water. . Furthermore, due to the top load applied to the upper surface of the sewage basin 7 and the uneven settlement of the ground around the sewage basin 7, impact force and the like between the sewage basin 7 and the upstream mounting pipe 8a and the downstream mounting pipe 8 may be caused. Even if displacement occurs, the impact force is absorbed by the flexible action of the joint 5 made of synthetic resin, and because it follows the displacement, the sewage basin 7 and each mounting pipe are excellent in integration, and Thus, it is possible to completely prevent the mounting tube from coming off due to an external force. Further, even if the sewage overflows the gutter-shaped portion 4 in the sewage basin 7, the gutter-shaped portion 4 is connected to the bottom surface of the inner peripheral surface 1b and the circular arc surface 4a of the inner peripheral surface 1b. The overflow sewage is collected by the arc surface 4a and flows into the trough-like portion 4 again. Moreover, since the inner peripheral surface 1b is formed in a hemispherical shape, there is no place where impurities adhere to the sewage basin 7, and all the sewage can be smoothly discharged.

Moreover, since the inner peripheral surface 1b is formed in a hemispherical shape, the sewage flowing in from the intermediate block 10 mounted above the sewage basin 7 also has impurities attached to the inner peripheral surface 1b. Without flowing, it smoothly flows into the trough-shaped portion 4 through the arc surface 4a.

Although the inflow hole 2 and the outflow hole 3 having different sizes are formed in the sewage basin in the above embodiment, the structure of the sewage basin of the present invention is not limited to this. For example, they may have the same diameter, and the size of the sewage basin itself does not matter.

[0024]

[Effect of device]

 As described above, according to the present invention, the inner peripheral surface of the sewage basin body is formed into a hemispherical shape, and the bottom portion thereof is provided with a gutter-shaped portion which is continuous with the arc surface of the inner peripheral surface. As described above, sewage can be discharged without adhering to the inside, so even if it is used for a long time, sewage can be smoothly discharged without depositing impurities on the entire surface of the sewage basin. It has a great effect. It also has the beneficial effect that maintenance and management of a series of sewer facilities does not take time.

[Brief description of drawings]

1 shows an embodiment of the present invention, (a) is a front view,
(B) is a plan view and (C) is a right side view.

2A is a cross-sectional view taken along the line AA in FIG.
1B is a sectional view taken along line BB in FIG. 1A, and FIG. 1C is an end view taken along line CC in FIG.

FIG. 3 shows an intermediate block, (a) is a front view, and (b) is a front view.
Is a plan view, and (c) is a cross-sectional view taken along the line D-D in (a).

FIG. 4 shows a usage state of the present invention, in which (a) is an enlarged cross-sectional view of a main part, (b) is a front view of a half-cut, and (c) is E in (b).
-E sectional view, (D) is an enlarged view of F portion in (A).

FIG. 5 is a sectional view showing a conventional example.

[Explanation of symbols]

 1. ・ Sewage basin body 1b ・ ・ Inner peripheral surface 4a ・ ・ Arc surface 4 ・ ・ Gutter-shaped part 7 ・ ・ Sewage basin

Claims (1)

[Scope of utility model registration request] The inner peripheral surface (1b) of the sewage basin body (1) is formed in a hemispherical shape, and a gutter-shaped portion (4) connected to the circular arc surface (4a) of the inner peripheral surface (1b) is formed at the bottom thereof. A sewage basin characterized by being provided.