JP2585017Y2 - Drain - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage basin in which an extension ring is inserted and connected in an upper receptacle of a drainage basin body.

[0002]

2. Description of the Related Art Conventionally, a drainage trough in which an additional ring is inserted and connected into an upper receiving port of a drainage trough main body is disclosed in
The one described in 174488 is known. In the drainage basin described in Japanese Utility Model Laid-Open No. 1-174488, the lower end of the additional ring is inserted and connected into the upper receptacle of the main body of the drainage basin, and the lower end of the additional ring has an annular concave groove that opens outward. A seal ring is provided in the annular groove, and the watertightness in the receiving port is maintained by the seal ring pressed against the inner surface in the upper receiving port of the drainage body.

In the drainage basin described in Japanese Utility Model Laid-Open Publication No. 1-174488, a seal ring is required to smoothly rotate the extension ring in order to arbitrarily set a connection direction with the drainage inflow pipe. It is desirable that the lubricating oil is stored in the inserted annular groove.

[0004]

However, in the drainage basin described in Japanese Utility Model Laid-Open Publication No. 1-174488, since the annular groove into which the seal ring is inserted is open to the side, lubricating oil is not received. There is a disadvantage that it easily flows down along the inner surface of the mouth and flows out.

The present invention has been made in view of such problems in the conventional drainage basin, and aims at solving the above problems and making it difficult for lubricating oil to flow out of the annular groove. An object of the present invention is to provide a drainage basin in which lubricating oil is retained for a long period of time so that an additional ring can be smoothly rotated.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the drainage basin of the present invention is a drainage basin in which a lower end portion of an extension ring is inserted and connected into a receiving port above the drainage basin. An upper receiving surface is provided with an annular flat surface facing upward, and a lower end portion of the extension ring is provided with an annular flat surface facing the above flat surface of the drainage body, and an annular concave groove is formed in at least one of both flat surfaces. Is provided, and an O-ring is inserted into the annular groove, so that the O-ring is located halfway along the side wall of the extension ring.
A branch pipe is protruded from the portion, and the branch pipe serves as an inflow port .

The main body and the extension ring of the drainage basin of the present invention are manufactured by injection molding using a synthetic resin such as polyethylene, polypropylene or hard vinyl chloride resin. Is preferable.

When polyethylene or polypropylene is used as the material, it is preferable to use a low foam of about 5 to 10 times in order to reduce weight and save material.

In the present invention, not only a so-called straight type in which the flow grooves connecting the main pipe receiving ports of the main body are arranged in a straight line as viewed from above, but also a so-called curved type or a Y-shaped branch. Also, the present invention can be applied to a so-called Y-shaped type.

[0010]

[Function] The drainage basin of the present invention is provided with an annular flat surface facing upward at the upper port of the drainage basin body, and an annular flat surface facing the above flat surface of the drainage body at the lower end of the extension ring. Since the annular groove is provided in at least one of the two planes, and the O-ring is inserted into the annular groove, the lubricating oil supplied into the annular groove does not easily flow out of the annular groove. . Therefore, the extension ring can be smoothly rotated over a long period of time. Also, in the middle of the side wall of the extension ring
Has a protruding branch pipe, which flows into the branch pipe.
The pipe can be connected and the extension ring can be rotated.
You can freely change the direction of the branch pipe, any direction
Can be connected to the inflow pipe from

[0011]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing an example of the drainage basin of the present invention, and FIG. 2 is a plan view of the drainage basin of the present invention shown in FIG.

[0012] In these figures, 1 is a drain body,
Reference numeral 2 denotes an extension ring, and the drainage body 1 and the extension ring 2 are integrally formed by injection molding using low-foaming polyethylene. Main pipe sockets 11 are protrudingly provided on both sides of the drain main body 1, and flow grooves 12 communicating with these main pipe sockets 11, 11 are arranged in a straight line when viewed from above. A receiving port 13 is provided above the drainage body 1, and an annular flat surface 14 facing upward is provided in the receiving port 13.

A receiving port 21 is provided above the additional ring 2, and a branch pipe 22 is protruded from a middle portion of a side wall of the additional ring 2 so that an inflow pipe (not shown) can be connected to the branch pipe 22. At the lower end of the extension ring 2, an annular flat surface 23 facing the annular flat surface 14 in the receiving port 13 of the drainage body 1 is provided, and the annular flat surface 23 is provided with an annular concave groove 24. An O-ring 25 is inserted, and a space around the O-ring 25 is filled with a lubricating oil 26.

Next, the operation of the drainage trough shown in FIGS. 1 and 2 will be described. In order to connect an inflow pipe (not shown) to the branch pipe 22 of the additional ring 2, the additional ring 2 is drained and turned relative to the main body 1 in the direction of arrow a. At this time, O
Since the circumference of the ring 25 is filled with the lubricating oil 26, the additional ring 2 is drained and smoothly rotates with respect to the main body 1. Since the annular plane 23 of the extension ring 2 and the annular plane 14 of the drainage body 1 are in close contact, the lubricating oil 26 does not easily flow out of the annular groove 24. Therefore, the extension ring 2 can be smoothly rotated over a long period.

[0015]

[Effect of the invention] The drainage basin of the present invention is provided with an annular flat surface facing upward in the upper port of the drainage basin, and an annular flat surface facing the above flat surface of the drainage basin at the lower end of the extension ring. Provided, an annular groove is provided in at least one of the two planes, and an O-ring is inserted into this annular groove, so that the lubricating oil supplied into the annular groove can be easily removed from the annular groove. Does not leak. Therefore, the extension ring can be smoothly rotated over a long period of time. Also in the side wall of the extension ring
A branch pipe that serves as an inflow port protrudes from the
Can be connected to the inflow pipe and rotate the extension ring
Can freely change the direction of the branch pipe,
Can be connected to the inflow pipe from the direction. Therefore,
The flexibility of piping is increased, and it can be used for piping in constricted areas.
You.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a drainage trough according to the present invention.

FIG. 2 is a plan view of the drainage gutter shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drain main body 11 Main pipe inlet 12 Distribution groove 13 Receptacle 14 Annular plane 2 Extension ring 21 Receptacle 22 Branch pipe 23 Annular plane 24 Annular groove 25 O-ring 26 Lubricating oil

Claims (1)

(57) [Scope of request for utility model registration] 1. A drainage mast in which a lower end portion of an extension ring is inserted and connected into an upper opening of a drainage body, wherein a receiving upper surface of the drainage body is provided with an annular flat surface facing upward. An annular flat surface is provided at the lower end of the drainage body facing the above flat surface of the main body, and an annular groove is provided in at least one of the two planes. An O-ring is inserted into this annular groove, and an additional ring is formed. Branch pipe in the middle of the side wall
The drainage is characterized by the fact that this branch pipe is an inlet .