JPH0685485U - Drain - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object of the present invention to provide a drainage basin in which lubricating oil does not easily flow out from an annular groove and the lubricating ring is retained for a long period of time so that the multiplying ring can smoothly rotate. [Structure] Drainage basin In the drainage basin, in which the lower end of the expansion ring 2 is inserted and connected in the receiving port 13 above the body 1, the receiving plane 13 above the draining body 1 has an annular flat surface 14 facing upward. A ring-shaped flat surface 23 is provided at the lower end of the expansion ring 2 facing the flat surface 14 of the drainage body 1, and a ring-shaped groove 24 is provided in at least one of the flat surfaces 14 and 23. An O-ring 25 is inserted in the annular groove 24.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a drainage basin in which an expansion ring is inserted and connected in an upper receptacle of the main body of the drainage basin.

[0002]

[Prior art]

 Conventionally, as a drainage basin in which an expansion ring is inserted and connected in the upper receiving port of the main body of the drainage basin, the one described in Japanese Utility Model Publication No. 1-174488 is known. In the drainage basin described in Japanese Utility Model Laid-Open No. 1-174488, the lower end of the expansion ring is inserted and connected in the upper receptacle of the main body of the drainage basin, and the annular recessed groove that opens outward is provided at the lower end of the expansion ring. A seal ring is provided, and a seal ring is inserted into the annular groove, and the seal ring pressed against the inner surface of the upper receiving port of the main body for drainage keeps the water tightness in the receiving port.

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

[0004]

[Problems to be solved by the device]

 However, in the drainage basin described in Japanese Utility Model Laid-Open No. 1-174488, since the annular groove into which the seal ring is inserted opens to the side, the lubricating oil flows down along the inner surface of the receiving port. There is a drawback that it easily leaks.

The present invention has been made in view of such problems in the conventional drainage basin, and an object of the present invention is to solve the above problems and make it difficult for the lubricating oil to flow out from the annular groove. The purpose of this is to provide a drainage system that retains lubricating oil for a long period of time so that the multiplying ring can rotate smoothly.

[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 the lower end of the expansion ring is inserted and connected in the upper receptacle of the body. An annular flat surface is provided at the lower end of the expansion ring, and an annular flat surface facing the above flat surface of the drainage body is provided.An annular groove is provided on at least one of both flat surfaces. It is characterized in that an O-ring is inserted.

The main body and the expansion ring of the drainage system of the present invention are manufactured by injection molding using synthetic resin such as polyethylene, polypropylene, and hard vinyl chloride resin as a material. It is constant and preferable.

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

Further, according to the present invention, not only the so-called straight type in which the circulation groove connecting the main pipe receiving port of the main body is arranged in a straight line when viewed from above, but also the curved so-called bent type, Y-shaped It is also applicable to a so-called Y-shaped type that is branched.

[0010]

[Action]

 The drainage basin of the present invention is provided with an annular flat surface facing upward in the upper receptacle of the drainage basin body, and an annular flat surface facing the above plane of the drainage basin main body at the lower end of the expansion ring. Since the annular groove is provided on at least one of the flat surfaces and the O-ring is inserted in the annular groove, the lubricating oil supplied into the annular groove does not easily flow out from the annular groove. Therefore, the additional ring can be smoothly rotated for a long period of time.

[0011]

[Embodiments] Next, embodiments 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.

In these figures, 1 is a drainage main body, 2 is an expansion ring, and the drainage main body 1 and the expansion ring 2 are integrally molded by injection molding using low foam polyethylene. Main pipe receiving ports 11, 11 are provided on both sides of the main body 1 for drainage, and flow channels 12 communicating with these main pipe receiving ports 11, 11 are arranged in a straight line when viewed from above. A receiving port 13 is provided above the drainage basin 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 expansion ring 2, and a branch pipe 22 is projectingly provided in a middle portion of a side wall of the expansion ring 2 so that an inflow pipe (not shown) can be connected to the branch pipe 22. At the lower end of the expansion ring 2 is provided an annular flat surface 23 facing the annular flat surface 14 in the receiving port 13 of the drainage body 1, and the annular flat surface 23 is provided with an annular recessed groove 24. The O-ring 25 is inserted, and the space around the O-ring 25 is filled with the lubricating oil 26.

[Operation of Embodiment] Next, the operation of the drainage basin of the present invention shown in FIGS. In order to connect an inflow pipe (not shown) to the branch pipe 22 of the expansion ring 2, the expansion ring 2 is rotated in the direction of the arrow a with respect to the drainage main body 1. At this time, since the lubricating oil 26 is filled around the O-ring 25 in the annular groove 24, the additional ring 2 rotates smoothly with respect to the main body 1 for draining. Since the annular flat surface 23 of the expansion ring 2 and the annular flat surface 14 of the drainage main body 1 are in close contact with each other, the lubricating oil 26 does not easily flow out from the annular recessed groove 24. Therefore, the additional ring 2 can be smoothly rotated for a long period of time.

[0015]

[Effect of device]

 The drainage basin of the present invention is provided with an annular flat surface facing upward in the upper receptacle of the drainage basin body, and an annular flat surface facing the above plane of the drainage basin main body at the lower end of the expansion ring. Since the annular groove is provided on at least one of the flat surfaces and the O-ring is inserted in the annular groove, the lubricating oil supplied into the annular groove does not easily flow out from the annular groove. Therefore, the additional ring can be smoothly rotated for a long period of time.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of the drainage basin of the present invention.

FIG. 2 is a plan view of the drainage basin of the present invention shown in FIG.

[Explanation of symbols] 1 Drainage main body 11 Main pipe receiving port 12 Flow groove 13 Receiving port 14 Annular flat surface 2 Expansion ring 21 Receiving port 22 Branch pipe 23 Annular flat surface 24 Annular groove 25 O ring 26 Lubricating oil

Claims (1)

[Scope of utility model registration request] 1. In a drainage basin in which the lower end of the expansion ring is inserted and connected in the receiving opening above the main body of the drainage basin, the receiving top above the main body of the drainage basin is provided with an annular flat surface facing upward, At the lower end of the drainage basin, an annular flat surface facing the above flat surface of the main body is provided, and at least one of both flat surfaces is provided with an annular groove, and an O-ring is inserted in this annular groove. Features drainage.