JP2594373B2 - Drainage basin - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a drainage basin, and more particularly, to a drainage basin used for, for example, sewer pipes.

(Prior art)

In the conventional drainage basin 1, as shown in FIG. 12, the inflow pipes 3 and 4 are formed so that their axes intersect at 45 degrees with the axis of the outflow pipe 2, and these inflow pipes 3 and 4 are formed.
The joints 5 and 6 are bonded to each other to form a 90-degree branch or a 45-degree branch.

The reason why the axis of the inflow pipes 3 and 4 is inclined (45 degrees) with respect to the axis of the outflow pipe 2 in the drainage basin 1 is as follows.
This is to prevent inflow of drainage between the inflow pipes 3 and 4.

[Problems to be solved by the invention]

In this conventional drainage basin 1, the inflow pipe 3 or 4
The branch angle was changed by changing the type of the joint to be bonded to the joint. However, when these joints are bonded in a factory, there has been a problem that the branch angle cannot be changed according to the construction situation at the site. On the other hand, when bonding is performed on site, curing is required for 2 to 3 hours or more after bonding, so that the next connection cannot be performed during that time, and there is a problem that workability is poor.

Therefore, a main object of the present invention is to provide a drainage basin capable of changing a branch angle on site and improving workability.

[Means for solving the problem]

The present invention relates to a drainage basin having an outflow pipe and an inflow pipe whose axis intersects with the axis of the outflow pipe at an angle of 45 degrees. This is a drainage basin characterized by being rotatably mounted.

[Action]

The inlet pipe is formed such that its axis intersects the axis of the outlet pipe at a 45 degree angle. Then, a receiving pipe is attached to the inflow pipe, the rotation of which changes the inflow angle of the receiving section. For example, when a receiving pipe is attached to an inflow pipe with a joint surface inclined at an angle of 22.5 degrees with respect to the axis of the outflow pipe, the inflow angle of the receiving section is reduced by rotating the receiving pipe. Can be changed between degrees and 90 degrees.

〔The invention's effect〕

According to the present invention, by rotating the receiving portion,
It is possible to change the inflow angle, that is, the branch angle of the receptacle at the site.

Moreover, since the inflow pipe and the receiving pipe are mechanically joined without using an adhesive, there is no need to wait for a curing time of two to three hours or more as in the conventional case, and therefore, the workability can be improved.

In addition, since the inflow pipe is formed so that the axis at the joint with the box body intersects the axis of the outflow pipe at an angle of 45 degrees, even when the branch angle is set to 90 degrees, for example, No inflow of drainage between pipes occurs.

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

〔Example〕

Referring to FIGS. 1A and 1B, a drainage basin 10 according to an embodiment of the first invention includes a main body 12 made of a synthetic resin such as vinyl chloride. An opening 14 for cleaning is formed in the upper part of the main body 12, and an outflow pipe 16 and an inflow pipe 18 are formed on the left and right of the main body 12. Each of the opening 14, the outflow pipe 16 and the inflow pipe 18 has an enlarged-diameter receiving port 2 for receiving a pipe end (not shown).
0, 22, and 24 are formed.

An inflow pipe 30 is formed before and after the main body 12 so that the axis 26 intersects the axis 28 of the outflow pipe 16 at an angle of 45 degrees. A receiving pipe 36 having an enlarged diameter receiving port 34 is rotatably connected to these inflow pipes 30 via a joint 32.

It should be noted that the joint surface 38 between the inflow pipe 30 and the receiving pipe 36 in the joint 32 is formed so as to be inclined at an angle of 22.5 degrees (FIG. 1A) with respect to the axis 28 of the outflow pipe 16. That is.

Referring to FIG. 2, the joint 32 includes a flange 40 whose diameter is increased in two steps from the outer peripheral surface of the end of the inflow pipe 30, and a seal ring 44 is attached to the step portion 42. And outside of this collar 40,
A fitting portion 46 formed at the end of the receiving pipe 36 is fitted. An annular projection 48 whose inner diameter is smaller than the maximum outer diameter of the flange 40 is formed on the inner peripheral surface at the end of the fitting portion 46. Therefore, at the time of joining, the fitting portion 46 is softened by heating, and the annular protrusion is formed.
48 is forcibly fitted so as to get over the collar 40.

According to the drainage basin 10, by rotating the receiving pipe 36, the inflow angle, that is, the branch angle of the receiving part can be changed between 45 degrees and 90 degrees. In, either the 45-degree branch or the 90-degree branch can be selected. Fig. 3 shows a 45 degree branch of the inlet pipe 36 (Fig.
FIG. 1B is an illustrative view showing one example of a case where the camera is turned by 180 degrees from FIG. 1A and FIG.

In addition, as a joining means of the inflow pipe 30 and the receiving pipe 36, a joint as shown in FIGS. 4 to 6A and 6B may be used.

That is, the joint 50 shown in FIG. 4 has a plurality of slits 52 distributed in the circumferential direction of the fitting portion 46 so that the fitting portion 46 can be fitted without heating and softening. The joint 54 shown in FIG. 5 is such that the flange 40 and the fitting portion 46 are brought into contact with each other, and the two are joined by a split ring 56. 6A and 6B form a projection 60 only on a part of the inner peripheral surface of the fitting portion 46, while the flange 40
The fitting piece 62 is formed only on a part of the outer peripheral surface of the receiving pipe, and the fitting piece 62 is passed through the part where the protrusion 60 is not formed, so that the receiving pipe is formed.
The inlet pipe 36 is brought into contact with the inlet pipe 36, and the receiving pipe 36 is rotated in this state to join them as shown in FIGS. 6A and 6B.

Referring to FIG. 7, a drainage basin 70 according to an embodiment of the second invention is described.
The inflow pipe 74 in which the axis 72 at the joint (inflow section) with the main body 12 intersects the axis 28 of the outflow pipe 16 at an angle of 45 degrees.
including. A curved portion 76 is formed at the inflow side end of the inflow pipe 74 with a predetermined curvature about the curvature center O. An annular projection 78 is formed on the inner peripheral surface of the inflow side end of the inflow pipe 74. Then, the receiving pipe 82 is inserted into the curved portion 76 of the inflow pipe 74 via the seal ring 80.

The receiving pipe 82 is bent at the same curvature as the bending portion 76 about the center of curvature O. In addition, an annular projection 84 is formed on the outer peripheral surface of the end of the receiving pipe 82, and the annular projection 84 is brought into contact with the annular projection 78 of the inflow pipe 74, so that the receiving pipe 82 can be removed. Is prevented (FIG. 8).

According to this embodiment, the branch angle can be changed by adjusting the insertion length of the receiving tube 82, and particularly, there is an advantage that the branch angle can be finely adjusted in the same plane. FIG. 8 is an illustrative view showing one example in a case where the receiving pipe 82 is pulled out to the maximum and the branch angle is set to 90 degrees.

It should be noted that a straight pipe portion 86 may be formed at the joint between the inflow pipe 74 and the main body 12, as can be clearly understood from FIG.

As means for preventing the receiving pipe 82 from coming off,
A separate stopper 88 may be attached to the end of the inflow pipe 74 as shown in FIG. 10, and a projection 90 is formed on the outer surface of the receiving pipe 82 as shown in FIG. However, the inflow pipe 74 may be formed with a locking member 92 that fits with the projection 90 so that the inflow pipe 74 is prevented from coming off.

[Brief description of the drawings]

1A and 1B are illustrative views showing one embodiment of the first invention, wherein FIG. 1A is a partially sectional plan view and FIG. 1B is a front view. FIG. 2 is an illustrative view showing a joint in the embodiment of FIGS. 1A and 1B. FIG. 3 shows the branch angle in the embodiment of FIGS. 1A and 1B.
FIG. 9 is an illustrative view showing one example when set to 90 degrees; FIG. 4 is an illustrative view showing a modified example of the joint. FIG. 5 is an illustrative view showing another modification of the joint. 6A and 6B are illustrative views showing other modified examples of the joint. FIG. 6A is a partially sectional front view, and FIG. 6B is a sectional view taken along line VIB-VIB in FIG. 6A. FIG. 7 is an illustrative view showing one embodiment of the second invention. FIG. 8 is an illustrative view showing one example when the branch angle is set to 90 degrees in the embodiment of FIG. FIG. 9 is an illustrative view showing one example of a case where a straight pipe portion is provided at a joint between the inflow pipe and the main body. FIG. 10 and FIG. 11 are illustrative views showing modified examples of the means for preventing the receiving tube from coming off. FIG. 12 is an illustrative view showing a conventional technique. In the figure, 10, 70 is a drainage basin, 12 is a main body, 14 is an opening, 16
Is the outflow pipe, 18, 30, 74 is the inflow pipe, 26, 28, 72 is the axis, 32 is the joint, 36, 82 is the receiving pipe, 44, 80 is the seal ring, 76 is the curved part, and O is the center of curvature. Show.

Continued on the front page (56) References Japanese Utility Model Showa 61-94690 (JP, U) Japanese Utility Model Showa 64-18697 (JP, U) Japanese Utility Model Showa 62-46893 (JP, U) Japanese Utility Model Showa 56-125588 (JP) , U)

Claims (1)

(57) [Claims] 1. A drainage basin having an outflow pipe and an inflow pipe whose axis intersects with the axis of the outflow pipe at an angle of 45 degrees, wherein the inflow angle of a receiving portion changes by turning the inflow pipe. A drainage basin characterized by a rotatable receiving pipe.