JPH03219194A - Water discharge measure - Google Patents

Abstract

PURPOSE:To enable the easy insertion and takeout of a jig by providing a cylinder receiving part above a measure body and a projected connection port at the side thereof, and connecting the lower end inner surface of the cylinder receiving part to the inner surface of the base end upper part of the connection port via the inner surface of a structure like an inverted funnel form. CONSTITUTION:A cylinder receiving part 12 for connecting a rising cylindrical body 2 as a cleaning opening 21 is erected above a measure body 1 having a water passage at the bottom thereof. Also, connection ports 14 and 14 for connecting sewage pipes 3 are projected from the sides of the body 1. The lower end inner surface 12a of the cylinder receiving part 12 is continuous to the inner surfaces 14a and 14a of the base upper part of the connection ports 14 and 14 via the inner surface 16 of a structure like an inverted funnel form as part of the outer wall of the body 1. The outer wall portion 16 of the body 1 is positioned between the roughly half portion of the cylinder receiving part 12 and the upper half part of the connection port 14, and has an edge of circular arc section. According to the aforesaid construction, a cleaning jig insertion work can be smoothly performed with a small force.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a drainage basin interposed in a sewage pipe through which domestic gray water discharged from plumbing areas such as bathrooms and kitchens of residences flows.

[Conventional technology]

When it is necessary to install an inspection port or a cleaning port for domestic gray water sewer pipes in a narrow space, recently it is necessary to connect a rising cylinder with a diameter of about 100 to 250 mm to the cleaning port (or inspection port). It is often used as a compact small drainage tank. Figure 3 shows such a small drainage basin.

This product has a cylinder receiving part 1 to which the lower end of the rising cylinder 2 is connected to the upper part of a square main body 1 having a water passage 11 at the bottom.
2 protrudes, and a connection port 14 is connected to a sewage pipe 3 at a location corresponding to the water passage 11 on the side of the main body 1.
...is highlighted. The lower end inner surface 12a of the cylindrical body receiving portion 12 and the base end upper inner surface 14a of the connection port portion 14 intersect at a substantially right angle to form a protruding corner portion 15.

On the other hand, in such a small drainage basin, the connection port 1
4 is often smaller than the diameter of the cleaning port (or inspection port) 21, and the height H of the cleaning port (or inspection port) is generally set to about 300 mm. Often, but in some cases 600~
The height may be set to 1000 mm.

When cleaning a sewer pipe or the inside of a drainage basin using the cleaning opening 21 of the drainage basin, a jig 100 as shown in FIG. 3 is used. This jig 100 has a head 120 such as a spiral part or a jet water jet nozzle at the tip of a wire 110 that is strong and has spring properties, such as a steel wire. Insert the wire rod 110 from the ground through the cleaning port 21 and guide it into the sewage pipe 3.
By moving the head 120 in and out, the head 120 is moved back and forth to remove solid matter adhering to the inner surface of the sewage pipe.

[Problems to be Solved by the Invention] However, in the conventional small drainage basin, the diameter of the cleaning port 21 is as small as 100 to 250 mm, as described above, and the diameter of the sewage pipe 3 is larger than the diameter of the cleaning port 210. is even smaller, and in addition, the height of the rising cylinder 2 is 300~
Since the length is set to about 1000 mm, when inserting the head 120 of the jig 110 into the sewer pipe 3, the protruding corner 15 of the drainage basin exists, making it difficult to insert it easily. There was a problem.

In addition, when the head 120 is inserted into the sewage pipe 3, the wire 110 is pushed by the protruding corner portion 15 and bent in a curved manner. It hits the corner part 15 strongly, and the wire rod 110
When the wire rod 110 and the protruding corner portion 15 rub against each other for cleaning by taking the wire in and out, there is a problem in that it is difficult to take the wire in and out smoothly, and the protruding corner portion 15 is easily damaged.

Therefore, attempts have been made to make the inner surface of the protruding corner portion 15 a curved rounded surface as shown in FIG. 3 so that the wire rod 110 can easily slide on the protruding corner portion 15. However, even if this is done, the wire rod 110 will still be inserted in a curved manner, so the above-mentioned problem will not be improved much.

The present invention has been made in view of the above problems, and by making the main body of the square have a structure different from that of the conventional one, it eliminates the protruding corners that get in the way of inserting jigs and taking out and taking out the wire.
To provide a drainage basin in which a jig can be inserted and taken out easily and smoothly.

[Problem to be solved by the invention]

In the drainage basin of the present invention, a cylindrical body receiving part to which a rising cylinder having a cleaning port is connected is protruded from the top of the basin main body which has a water passage at the bottom, and corresponds to the water passage on the side of the basin main body. A connection port to which a sewage pipe is connected is protruded at the location, and the inner surface of the lower end of the cylindrical body receiving portion and the inner surface of the upper base end of the connection port have a downwardly expanding shape formed on the outer wall of the main body. It is characterized by being connected through the inner surface of the body.

[For production]

According to the drainage basin having this configuration, the protruding corner portion described in the conventional example is eliminated. The wire rod of the jig inserted through the cleaning port connects the inner surface of the lower end of the cylindrical body receiver and the inner surface of the upper proximal end of the connection port, and the inner surface of the downwardly expanding shape formed on the outer wall of the main body. It can be bent in a gentle curve along the

[Embodiment] FIG. 1 is a sectional view of a drainage basin according to an embodiment of the present invention in use. This drainage basin is a small drainage basin as explained at the beginning, and is a sewage pipe with a small diameter of 75 to 150 mm, which is usually derived from a general household bath, kitchen, laundry, washroom, etc. It is interposed in the sewage pipe for residential land formed by, and the overall shape is extremely compact to match such a small diameter sewage pipe 3.

The drainage basin is made of synthetic resin such as polyvinyl chloride resin or polypropylene resin, and has a cleaning port (also useful as a pipe inspection port) 21 at the top of the basin main body l, which has a water passage 11 at the bottom. A cylindrical body receiving part 12 to which the rising cylindrical body 2 is connected is protruded, and a connection port part 14 to which the sewage pipe 3 is connected to a part corresponding to the above-mentioned water passage 11 on the side thereof.
．． 14 is protruding. The lower end inner surface 12a of the cylindrical body receiving portion 12 and the base end upper inner surface 14a, 14a of the connection port 14.14 are connected via a downwardly expanding inner surface 16 formed on the outer wall of the main body 1. ing. More specifically, the outer wall portion 16 of the square main body 1 forming the inner surface 16a with a downwardly expanding shape is connected to the cylindrical body receiving portion 1
2 and the upper half of the proximal end of the connection port 14, and the cut end shape along line A-A is semicircular or semielliptical. .

According to this drainage basin, the protruding corner 15 explained in Figure 3
Because there is no head 120 of the cleaning jig 100 inside the sewage pipe 3, the wire 110 draws a gentle curve along the downwardly expanding inner surface 16a of the outer wall portion 16 and rises up into the cylindrical body. 2 or inside the sewage pipe 3.

Therefore, it is easy to guide the head 120 into the inside of the sewage pipe 3, and when cleaning, the wire rod 110 can be taken in and out smoothly without any difficulty.
The inner surface of the main body 1 is less likely to be damaged because it does not rub so strongly against the inner surface of the main body 1.

By the way, drainage basins are not limited to straight sections of sewage pipes.
It is also installed at gathering and branching sections of sewage pipes, and the connection port on the sewage inflow side and the connection port on the sewage outflow side of drainage basins installed at the collection section, etc. are in different directions. An embodiment in which the present invention is applicable to such a drainage basin is shown by a solid line in FIG. In this device, the sewage pipe on the inflow side is connected to the connection port 14 on one side, and the sewage pipe on the outflow side is connected to the connection port 14 on the other side, and the orientation of both connection ports is It is set at a right angle.

Comparing the drainage basin according to the present invention shown in Fig. 2 with the conventional drainage basin shown in phantom lines in the same figure, the former has an outer wall portion 16 having a downwardly expanding inner surface, and its connection The protruding width of the mouth portion 14.14 is larger than that of the conventional example.

Therefore, the radius of curvature of the sewage passage formed by the connection port portions 14, 14, which are perpendicular to each other, and the water passage 11 formed at the bottom of the box body l is larger than that of the conventional example, and the sewage passage is This has the advantage that sewage can flow more easily. Even in the conventional example, the connection port 14.14
A similar advantage can be obtained by increasing the protrusion width of the cell, but if the conventional example is changed in this way, the distance from the cell main body 1 to the sewage pipe 3 connected to the connection port 14 becomes long (which is wasteful). .

The drainage basin of the present invention can be molded from synthetic resin such as polyvinyl chloride resin or polypropylene resin.

As a method of molding with a synthetic resin that can be bonded with adhesive, such as polyvinyl chloride resin, half-shaped members that are divided into two along the plane including the cylinder receiving part 12 and the connection port part 14, 14 are each integrally molded. However, there is a method of joining these half-shaped members together with an adhesive after molding. Alternatively, the whole may be integrally molded by injection molding using a divided core for molding the outer wall portion 16, or the RIM method (Re
action injection molding
Method). When molding with a synthetic resin such as polypropylene resin that is unsuitable for bonding with an adhesive, the latter two are preferred.

The downwardly expanding inner surface 16a of the outer wall portion 16 may be an inclined surface that is flat in the direction of inclination, or may be an inclined surface that is curved in the direction of inclination. Further, the optimum inclination angle is about 45 degrees, but even if the inclination angle is larger or smaller, it is sufficient as long as the wire 110 of the jig 100 can easily follow the inner surface 16a of the jig 100. It is not limited to 45 years. The height of the rising cylinder 2 is 300-
The horizontal width of the inner surface 16a when the sewage pipe 3 is thinner than the upright cylinder 2 is about 1000 mm! is cylinder body receiving part 1
It is preferable to set the relationship D/8≦2≦D/2 for the diameter of 2. Horizontal width! If D/8>f, then
It becomes necessary to bend the wire rod (steel wire having spring properties) 110 of the jig 100 in a sharp curve, and the way the wire rod is bent tends to be unreasonable. If the horizontal width l is f>D/2, the protruding width of the connection port 14 will become too large, making the drainage basin larger, and the advantage of a small drainage basin suitable for installation in a narrow space may be lost. Furthermore, when the molding method is used to use the core described above, it is likely to be difficult to remove the core after molding. Although the requirements explained above define a preferable range, the drainage basin of the present invention is not limited to a configuration that satisfies the requirements. That is, there are differences in the buried depths of drainage basins, and therefore differences in the heights of the rising cylinders 2. Even if the above requirements are not met depending on the height of the rising cylinders 2, the wire rod 110 of the jig 100 This is because there are cases where it is possible to insert it without difficulty.

〔Effect of the invention〕

According to the drainage basin of the present invention, it is possible to smoothly insert a cleaning jig or take the jig in and out when cleaning with a small force, and at the same time, the wire of the jig can drain water. The main bodies of the drain basins are less likely to be damaged due to rubbing against each other. Therefore, the present invention can be extremely advantageously applied to small-sized drainage basins as explained at the beginning.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a drainage basin according to an embodiment of the present invention in use, FIG. 2 is a plan view of a modified example, and FIG. 3 is a sectional view of a conventional example in use. DESCRIPTION OF SYMBOLS 1... Masu body, 2... Standing cylindrical body, 3... Sewage pipe, 11... Water passage, I2... Cylinder receiving part, 12a
...Inner surface of the lower end of the cylindrical body receiving part, 14...Connection port part, 14
a...Inner surface of the upper base end of the connection port, 16...Outer wall portion of the main body, 16a...Inner surface of downwardly expanding shape, 21.
・Cleaning port.

Claims (1)

[Claims] 1. A cylindrical body receiving part to which a rising cylindrical body having a cleaning port is connected is protruded from the top of the main body having a water passage at the bottom, and a sewage pipe is connected to the side of the main body at a location corresponding to the water passage. The connecting port portion to be connected is protruded, and the inner surface of the lower end of the cylindrical body receiving portion and the inner surface of the upper proximal end of the connecting port portion are connected through the downwardly expanding inner surface formed on the outer wall of the main body. A drainage basin characterized by being connected.