JPH061486U - Insert for drainage basin inlet - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an inlet insertion tool capable of adapting an inlet of a drainage basin to an inlet pipe of three sizes. [Structure] An outer bushing 3 which is formed so as to be capable of being fitted into an inlet 11 of a cell body 1, an inner bushing 4 which is fitted inside the outer bushing 3, and a cap 5 which is fitted inside the inner bushing 4. It is composed of.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an inlet insertion tool that is fitted to an inlet of a drainage basin provided in the middle of a drainage pipe.

[0002]

[Prior art]

 As a drainage basin, such as a straight type and an L type, one inlet and one outlet are formed and used for the straight part and the bent part of the drainage pipe, as well as the T type and the Y type. There are two inflow ports that are used at the confluence of drainage pipes, and they are used properly.

By the way, in recent years, a drainage basin in which the inflow port is closed by an insertion tool has been publicly known (Shokai 60-14185). In this drainage basin, the main body of the basin is formed in a Y shape, and an insertion tool is detachably fitted to one of the inlets of the drainage basin. Like the drainage basin, it can be used at the confluence of the drainage pipe, and by using the insertion tool while it is fitted, it can be used at the bend of the drainage pipe like the L-shaped drainage basin. You can do it.

However, in such a drainage basin, since the inflow port and the outflow port are formed with the same diameter, it is not possible to directly connect the inflow pipe and the outflow pipe having different calibers. Therefore, the applicant of the present application has proposed an insertion tool including a bushing in which an outer tubular portion and an inner tubular portion are provided in an inner and outer double, and one end between the outer tubular portion and the inner tubular portion is closed by a bottom wall. By constructing the inner cylindrical portion of the bushing with a cap that can be closed, the above-mentioned problem has been successfully solved. In other words, if only the cap is removed from the inlet of the drainage basin, the inner tube of the bushing left at the inlet is opened, so that the inflow pipe can be inserted and connected in this inner tube. It has become.

[0005]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in such a conventional drainage basin, since it is possible to deal only with an inflow pipe having a diameter of 2 sizes, it is desired to be able to deal with an inflow pipe having a larger size. Was requested.

In order to meet the above-mentioned demands, the present invention aims to provide an insertion tool capable of adapting an inlet of a drainage basin to an inlet pipe having a size of 3 sizes.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the drainage channel inlet insert of the present invention comprises an outer bushing that can be fitted into the drainage channel inlet and an inner bushing that is fitted inside the outer bushing. , And a cap fitted inside the inner bushing.

[0008]

[Action]

 For the inlet of the drainage basin fitted with the inlet insert of the present invention, remove only the cap of the inlet insert and remove the inlet pipe inside the inner bushing left at the inlet. Can be inserted and connected. It is also possible to remove the inner bushing integrally with the cap of the inlet insertion tool from the inlet, and insert and connect the inlet pipe inside the outer bushing left at the inlet. Further, it should be understood that the inflow pipe can be connected to the inside of the inflow port by removing the outer bushing integrally with the cap and the inner bushing from the inflow port. In other words, an inflow pipe with an outer diameter approximately equal to the inner diameter of the inner bushing, an inflow pipe with an outer diameter substantially equal to the inner diameter of the outer bushing, an inflow pipe with an outer diameter approximately equal to the inner diameter of the inlet, and an inflow pipe with these three sizes are available. Can connect.

[0009]

【Example】

 Hereinafter, the structure of the drainage basin inlet insert of the embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a sectional view showing an inlet insertion tool of an embodiment, FIG. 2 is a sectional view of a drainage basin in which the inlet insertion tool of the present embodiment is fitted to an inlet, and FIGS. 3 and 4 are the drainage basins. Is a cross-sectional view showing a processed state, in which 1 is a basin body.

The basin body 1 is an injection-molded product using a synthetic resin such as polypropylene resin or polyvinyl chloride resin, and an inflow port 11 and an outflow port 12 are formed in the peripheral wall 1a. The inflow port 11 and the outflow port 12 are provided at positions facing each other, and have substantially the same diameter. Further, on the inner circumference of the inflow port 11, there is formed a step part 13 which serves as a stopper for positioning the end of an inflow pipe (not shown) inserted into the inflow port 11.

The inlet insert 2 of the present embodiment includes an outer bushing 3 fitted into the inlet 11 of the basin body 1 and an inner bushing 4 fitted inside the outer bushing 3. A cap 5 fitted inside the inner bushing 4 is formed. The outer bushing 3, the inner bushing 4, and the cap 5 are formed so that their axial centers are coaxially arranged.

The outer bushing 3 has an outer cylinder portion 31 having an outer diameter substantially equal to the inner diameter of the inflow port 11 of the container body 1, and an inner cylinder portion provided inside the outer cylinder portion 31. 32 and a bottom wall 33 that is provided by closing one end between the outer tubular portion 31 and the inner tubular portion 32. The bottom wall 33 includes the peripheral wall 1a of the pallet body 1 and It is formed into a curved surface that is continuous with the bottom wall 1b at a gentle slope. Further, an O-ring 34 is attached to the outer circumference of the outer cylindrical portion 31 to maintain the watertightness between the outer bushing 3 and the inflow port 11, and the inner circumference of the inner cylindrical portion 32 has an inner circumference as shown in FIG. A step portion 35 serving as a stopper for positioning the end portion of the inflow pipe P2 inserted into the inner cylindrical portion 32 is formed.

The inner bushing 4 has an outer cylindrical portion 41 having an outer diameter substantially equal to the inner diameter of the inner cylindrical portion 32 of the outer bushing 3, and an inner cylindrical portion 42 provided inside the outer cylindrical portion 41. And a bottom wall 43 provided by closing one end between the outer tubular portion 41 and the inner tubular portion 42. The bottom wall 43 is loose from the bottom wall 31 of the outer bushing 3. It is formed into a curved surface that is continuous with an inclination. Further, an O-ring 44 is attached to the outer circumference of the outer cylinder part 41 to maintain water tightness between the inner bushing 4 and the outer bushing 3, and the inner circumference of the inner cylinder part 42 is shown in FIG. A step portion 45 serving as a stopper for positioning the end portion of the inflow pipe P1 inserted in the inner cylinder portion 42 is formed on the inner surface of the inner pipe portion 42.

The cap 5 includes a cylindrical portion 51 whose outer diameter is formed to be approximately equal to the inner diameter of the inner cylindrical portion 42 of the inner bushing 4, and a bottom wall 52 which closes one end of the cylindrical portion 51. The bottom wall 52 is formed into a curved surface that is continuous with the bottom wall 43 of the inner bushing 4 at a gentle inclination. An O ring 53 is attached to the outer periphery of the cylindrical portion 51 to maintain the water tightness between the cap 5 and the inner bushing 4.

Next, the operation of this embodiment will be described. In the drainage basin in which the inflow port insertion tool 2 of this embodiment is fitted into the inflow port 11 of the basin body 1, as shown in FIG. 3, only the cap 5 of the inflow port insertion tool 2 is attached to the basin body 1. The inflow pipe P1 can be inserted into the inner tubular portion 42 of the inner bushing 4 left at the inflow port 11 and connected to the inflow pipe P1. Further, as shown in FIG. 4, the inner bushing 4 is also removed from the inflow port 11 of the main body 1 together with the cap 5 of the inflow port insertion tool 2 so that the inner bushing 4 is placed inside the outer bushing 3 left in the inflow port 11. The inflow pipe P2 can be inserted and connected. Further, as a matter of course, if the outer bushing 3 is integrally removed with the cap 5 and the inner bushing 4 from the inflow port 11 of the container body 1, the inflow pipe can be connected to the inner side of the inflow port 11. That is, an inflow pipe P2 having an outer diameter substantially equal to the inner diameter of the inner bushing 4, an inflow pipe P1 having an outer diameter substantially equal to the inner diameter of the outer bushing 3, and an inflow pipe having an outer diameter substantially equal to the inner diameter of the inlet 11 of the rod body 1. (Not shown), inflow pipes of these three sizes can be connected. Therefore, it is not necessary to produce a large number of small quantities of the inflow port insertion tool 2, and thus costs such as mold manufacturing costs can be reduced.

Although the embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and there are design changes and the like within a range not departing from the gist of the present invention. Also included in the present invention. For example, in the embodiment, the inlet bushing insert is formed such that the outer bushing, the inner bushing, and the cap axis are all arranged coaxially. The core may be deviated to the bottom wall side of the container body with respect to the axis of the outer bushing. When the shaft center of the inner bushing is offset to the bottom wall side of the basin body, the bottom of the inflow pipe inserted inside the outer bushing and the bottom of the outflow pipe inserted in the outflow port of the basin body Since the step difference is smaller than before by the amount of deviation of the inner bushing shaft center, foreign matter such as dust is not caught and the flow of fluid from the inflow pipe to the outflow pipe is smooth. If the axial center of the cap is eccentric to the bottom wall side of the basin body, the step between the bottom of the outflow pipe inserted inside the inner bushing and the bottom of the outflow pipe becomes smaller, so the same The effect is obtained. Further, the outer bushing and the inner bushing may have ribs formed between the outer tubular portion and the inner tubular portion.

[0017]

[Effect of device]

 As described above, in the drainage channel inlet insertion device of the present invention, the drainage channel inlet has an inlet pipe having an outer diameter substantially equal to the inner diameter of the inner bushing and an outer diameter substantially equal to the inner diameter of the outer bushing. The effect that it can correspond to the pipe, the inflow pipe having the outer diameter substantially equal to the inner diameter of the inflow port, and the inflow pipe having the caliber of these three sizes can be obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an inlet insertion tool for a drainage basin of this embodiment.

FIG. 2 is a cross-sectional view of a drainage basin in which the inflow port insertion tool of this embodiment is fitted in the inflow port.

FIG. 3 is a cross-sectional view showing a construction state of the drainage basin.

FIG. 4 is a cross-sectional view showing a construction state of the drainage basin.

[Explanation of symbols]

 1 Masu body 11 Inlet 2 Inlet insert 3 Outer bushing 4 Inner bushing 5 Cap

Claims (1)

[Scope of utility model registration request] 1. An outer bushing formed so as to be fitted to an inlet of a drainage basin, an inner bushing fitted to the inner side of the outer bushing, and a cap fitted to the inner side of the inner bushing. An insertion tool for the inlet of a drainage basin, which is characterized in that