JPS6015813Y2 - cleaning drain - Google Patents

Description

[Detailed Description of the Invention] The present invention mainly relates to an improvement of a cleaning drain for draining wastewater, which is buried in a dirt floor or floor with the upper surface exposed.

By the way, most drain pipes are currently made of synthetic resin pipes, whereas drain ports are made of metal to ensure strength since the top surface is exposed to the floor.

Therefore, when connecting a drain port to a drain pipe, as in the past, the end of the synthetic resin drain pipe is softened and expanded by heating with a torch lamp on site, and then adhesive is applied to the joint surface. As shown in FIG. 3, the drain 1 can be connected to the flanged cylindrical portion 1a and the cylindrical body 1b without having to take the trouble of inserting and fixing the cylindrical portion of the drain into the enlarged diameter opening of the drain pipe. The former cylindrical part 1a is made of metal and the latter cylindrical body 1b is made of synthetic resin, and the two members are connected in advance by inserting and fixing the cylindrical part 1a into the cylindrical body 1b. The cylinder body 1 at the drain port 1 is integrated with the drain pipe (not shown) at the site.
The connection is made by inserting and fixing b.

Therefore, the cylindrical portion 1a and the cylindrical body 1 in the conventional drain port 1
(b) can be connected by means of an adhesive 2 as shown in FIG. For example, Japanese Utility Model Publications No. 50-28058 and Publication No. 55-31109-1) are taken.

However, the above-mentioned connection A using adhesive
Since it is made of metal, the application of adhesive becomes insufficient, and over time, the watertight connection with the cylinder body 1b becomes incomplete, or it peels off due to changes in temperature. In addition, the screw connection in (B) above is
Not only do screws 3 have to be formed on both the cylinder body 1b and the cylinder body 1b, but since the cylinder body 1b is made of synthetic resin, the strength is weakened by forming the screws (the cylinder body 1b is connected to a drain pipe, so its strength is reduced). (There is a restriction that the wall thickness cannot be made too large), and the perforated plate (nest cover, not shown) fitted to the upper inner circumference of the flange portion of the cylindrical portion 1a has the disadvantage of rotating together when removed for cleaning. There is.

The present invention is intended to eliminate the above-mentioned drawbacks and adverse effects of the conventional art, and will be explained with reference to the embodiment shown in FIG.

In the figure, reference numeral 11 denotes a drain port formed by combining a cap body 12 and a cylindrical body 13 of appropriate dimensions.
A flange portion 12b is formed on the upper end of the cylindrical portion 12a that extends to the outer periphery, and a flange portion 12b (not shown) is provided on the inner periphery near the top for supporting the perforated plate (nest cover). 12c, and as in the conventional case, the cap body 12 is made of metal, and the cylindrical body 13 is made of synthetic resin.

14 is formed at an appropriate position on the outer circumferential surface of the cylinder body 13 so as to bite into the inner circumference of the cylinder body 13 made of synthetic resin when the cylinder body 13 is fitted to the outer circumference of the main body cylinder portion 12a. The groove 14 may have a shape that prevents the cylinder from moving relative to the main body cylinder portion 12a in both the axial direction and the rotational direction by engaging the flesh of the cylinder 13. Therefore, such a concave groove 14 adopts two types of joint shapes: a circumferential groove A in the cylindrical part and an axial notch in the lower half as shown in the figure, as well as a groove with a letter or a circle. It may have a shape like this.

The engagement of the concave groove 14 of the cylindrical body 13 can be achieved, for example, by heating and softening the cylindrical body 13 to enlarge the mouth portion of the cylindrical body 13.
2a and then tightening the rear cylinder body 13 with a band attached to the outer periphery, or by inserting the cap body 12 in advance into a synthetic leather resin molding mold in which the cylinder body 13 is formed. In this case, the cylindrical body 13 may be formed by an insert method on the outer periphery of the cylindrical portion 12a of the main body.

In this way, when using the drain outlet of the present invention, when inserting the cylindrical part of the metal base body into the synthetic resin cylinder and joining them together, the outer peripheral surface of the cylindrical part of the main body is Since the concave groove that can be bit into the white part of the cylinder body is formed in a shape that prevents the cylinder parts from moving in the rotational direction and the axial direction, it is possible to prevent the cylinder from moving in the rotational direction and the axial direction. This method not only eliminates the trouble of forming a screw on the periphery of a synthetic resin cylinder, but also eliminates the disadvantages of weakening the strength due to the formation of the screw, and eliminates accidental rotation in the return direction. This eliminates the need for such a process, increases the strength of the assembly, and eliminates the problem of rotational separation after assembly.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the drain outlet of the present invention, Figure 2 is an enlarged view of the main parts,
FIGS. 3A and 3B are sectional views showing separated parts of a conventional drain port. 11 is a drain port, 12 is a cap body, 12a is a cylindrical portion, 12b
12c is a flange portion, 12c is a ridge, 13 is a cylindrical body, and 14 is a groove.

Claims (1)

[Scope of utility model registration request] A flange portion 12b is provided at the upper end of the cylindrical portion 12a, and a protruding edge 12c is provided on the inner periphery slightly below the upper end.
2 is made of metal, and the cylindrical body 13 into which the cylindrical part 12a of the main body is inserted is made of synthetic resin. Therefore, in the structure of the drain port which is packed together, a concave groove is formed in the outer peripheral surface of the cylindrical part 12a in the mouthpiece body so that the flesh of the cylindrical body is bitten into it, and the circular movement of both the above-mentioned axial and rotational directions is controlled. A cleaning drainage port characterized in that it is formed in a shape that prevents the cleaning.