JPS6139012Y2 - - Google Patents

Description

[Detailed description of the invention] (1) Technical field of the invention The invention relates to a sewage basin, and relates to a joint structure for connecting drain pipes such as gray water.

(2) Conventional technology and its problems Conventional basins are made of concrete, which is heavy and takes time to manufacture.Also, there are sewage basins molded from vinyl chloride resin, but they maintain strength. It is necessary to form it thickly due to the problem of storage and molding, which has the disadvantage of increasing material costs. For this reason, sewage basins made of polypropylene resin have come to be used. This sewage basin molded from polypropylene resin is lightweight and easy to handle, but polypropylene resin does not have an adhesive, and when connecting drain pipes molded from vinyl chloride resin, it cannot be bonded with adhesive, so fill the connection part with adhesive. However, the connection work is complicated and workability is poor, and the connection cannot be made safely and liquid-tight, causing water leakage. It was difficult to connect to the cesspit.

(3) Purpose of the invention In view of the above-mentioned problems, the present invention provides a reliable system by simply inserting a connected pipe made of vinyl chloride resin into the connection port of the sewage basin body made of polypropylene resin. To provide a sewage basin that is connected, does not leak water, and can easily connect a pipe to be connected made of vinyl chloride resin to a sewage basin body made of polypropylene resin, which is difficult to bond, without using adhesives. .

(4) Structure of the invention The structure of the invention is that a cylindrical socket is integrally formed at the connection port of the basin body molded from polypropylene resin.
A short synthetic resin tube having an annular protrusion that engages with the inner circumferential surface of the socket on the outer periphery of the inner end and an annular groove on the inner periphery of the outer end is press-fitted into the socket;
A rubber ring is fitted into the annular groove of the short tube.

(5) Embodiment of the invention Next, the configuration of an embodiment of the invention will be explained with reference to the drawings.

Reference numeral 1 denotes a sewage basin body made of foamed polypropylene resin, which is formed into a hollow cylindrical body with an open top and a bottom.A cylindrical socket 3 is connected to a connecting port 2 opened at a position relative to the circumferential surface of the main body 1. The protrusion is formed by integral molding. Reference numeral 4 denotes a short tube molded from vinyl chloride resin, and a hook-shaped annular projection 5 is provided on the outer periphery of one end of the short tube 4, and this projection 5 allows the socket 3 to be completely cooled. When the short tube 4 is press-fitted into the socket 3 before the short tube 4 is inserted, the protrusion 5 is bitten and locked. Further, an annular groove 6 is formed on the other end of the short tube 4 so as to bulge out in an annular shape on the outer periphery and open on the inner periphery. A rubber ring 7 is fitted into this annular groove 6. Further, support legs 8 are protruded from several locations around the lower end of the main body 1, and a flange 10 forming an annular recess 9 is integrally formed on the upper outer periphery of the peripheral wall.

Further, 11 is a connecting body made of a hollow cylindrical body molded from foamed polypropylene and opened at the top and bottom,
The lower end is supported in an annular groove 6 in the upper part of the main body 1 via an annular sealing material 12 . Further, a flange 14 is integrally formed on the upper outer periphery of the connecting body 11 so as to form an annular recess 13 . Furthermore, a plurality of thin opening portions 15 having different diameters are formed on the peripheral wall of the connecting body 11 .

Next, 16 is a lid molded from synthetic resin, and an annular projection 17 formed on the periphery closes the upper opening of the connecting body 11.

Next, the operation of this embodiment will be explained.

When the pipe to be connected 18 molded from vinyl chloride resin is inserted into the socket 3 of the main body 1, the rubber ring 7 built into the socket 3 comes into close contact with the outer periphery of the pipe to be connected 18 and is inserted into the annular groove 6. It is crimped to prevent water from leaking and escaping. Note that an adhesive may be interposed between the socket 3 and the connected pipe 18 in order to further ensure water leakage prevention.

Next, connect the connector 11 so that the opening thin part 15 of the connector 11 is aligned with, for example, a drain pipe of a rain barrel.
The thin wall portion 15 is opened by adjusting the position, and the drain pipe is communicated with this opening. At this time, the diameters of the plurality of thin portions 15 having different diameters are selected appropriately.

In addition, the short tube 4 press-fitted into the socket 3 of the main body 1 has a hook-shaped protrusion 5 crimped onto the inner peripheral surface of the socket 3 so that one end is press-fitted to the inside end, which prevents water from leaking and prevents it from coming out. This prevents it from coming off.

(6) Effects of the invention According to the invention, an annular protrusion is formed on the outer periphery of the inner end of the connection port of the sewage basin body molded from polypropylene resin, and an annular recess into which a rubber ring is fitted is formed on the inner periphery of the 56-end side. Since the short tube with the groove is integrally formed, when the short tube press-fitted into the connection port of the main body is connected by inserting the pipe to be connected made of PVC resin, the elasticity of the rubber ring prevents it from coming out and prevents water from coming out. It has a leak-preventing effect, and the pipes to be connected can be reliably connected by simply inserting them without using adhesives.The short tube and the socket are connected liquid-tightly and are prevented from coming off, and are bonded with polypropylene resin. Suitable for connecting connected pipes molded from vinyl chloride resin, which is difficult to connect, and also allows for easy connection work.Since the main body is made of polypropylene resin, it is robust even when formed thin, and is lightweight and compact. can be measured.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of a sewage basin showing an embodiment of the present invention, and FIG. 2 is an enlarged longitudinal sectional side view of the same receptacle. 1...Body, 2...Connection port, 3...Socket, 4...
...Short tube, 5...Annular protrusion, 6...Annular groove, 7...
...Rubber ring.

Claims (1)

[Scope of utility model registration request] A cylindrical socket is integrally formed at the connection port of the basin body molded from polypropylene resin, and an annular projection that engages with the inner peripheral surface of the socket is formed on the outer periphery of the inner end of the socket. A sewage basin characterized in that a short tube made of synthetic resin having an annular groove formed on the inner periphery of the outer end is press-fitted, and a rubber ring is fitted into the annular groove of the short tube.