JPH0639579Y2 - Drainage pipe mounting device for seat pond - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a drainage pipe mounting device for a seat pond intended to connect a drainage pipe to the bottom of a seat pond composed of a sheet material such as a tarpaulin sheet. Regarding

(Prior Art) Conventionally, as a pond for cultivating fish or the like, a seat pond in which a bottom and a side wall are made of a sheet material such as a tarpaulin sheet and a waterproof cloth sheet is known. When cultivating fish or the like in this sheet pond, it is necessary to manage the seawater or freshwater contained inside, and fresh seawater or freshwater is constantly replenished or regularly replaced.

Therefore, the structure is such that the drainage pipe is connected to the bottom of the seat pond.

(Problems to be solved by the invention) Since the drainage port and the connection flange cannot be provided at the bottom of the seat pond at the connection part of the bottom of the seat pond and the drainage pipe, conventionally, the drainage is performed at the opening of the bottom seat. An annular flange provided at the pipe end was applied from the outside, an annular flange was applied from the inside of the bottom sheet, the opening edge of the sheet was sandwiched between the flanges, and both flanges were tightened with bolts and nuts to connect. .

Therefore, at the time of connecting the drainage pipe, it is necessary to dispose a tool for the bolt or the nut on the lower side of the bottom of the seat pond, which makes the work difficult.

In particular, when the sheet pond has a bottomed cylindrical shape (diameter 8 to 10 m), the drainage pipe is connected to the center of the bottom, so that there is a problem that only a large number of people can work.

The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a drainage pipe fitting for a seat pond, which can easily connect a drainage pipe to the bottom of the seat pond.

(Means for Solving the Problem) That is, the present invention is to provide an annular collar on the outside of the other end of the elbow pipe to which a drainage pipe can be connected at one end, leaving at least a space for fitting an annular flange. The collar is provided with a screw hole for a tightening bolt, and an annular flange having a bolt hole is fitted to the other end of the elbow pipe body, and a seat opening edge portion is sandwiched between the annular flange and the annular flange. Screw the tightening bolt,
In the seat pond drainage pipe mounting device, one end of an overflow pipe is detachably fitted into the other end of the elbow pipe body.

In the above description, the bolt hole of the annular flange is a through hole having an inner diameter through which the bolt can be inserted.

(Operation) According to the seat pond drainage pipe fitting of the present invention, after matching the end of the pipe body connected to the drainage pipe with the opening formed in the bottom of the seat pond, By aligning the annular flange from the inside with the annular flange on the tubular body side, pinching the opening edge of the seat pond, and then screwing the bolt inserted into the bolt insertion hole of the annular flange into the bolt hole of the annular flange. Since the drain pipe and the bottom of the seat pond can be connected, it is not necessary to dispose a tightening member such as a nut or a tool outside the seat pond.

(Embodiment) The present invention will be described below based on an embodiment shown in the drawings.

FIG. 1 shows that the seat pond 1 and the drain pipe 2 are connected by a drain pipe connecting device 4 composed of an elbow pipe 3 so that seawater or fresh water in the seat pond 1 can be drained to a drainage channel 5.

As shown in FIG. 2, the drainage pipe connecting device 4 is provided with an annular flange 7 on the outer side of the end of the rising pipe 6 of the elbow pipe 3, and the annular flange 7 has a plurality of tightening bolt screw holes 8. 8 are provided at equal intervals on the same circumference, and bolt insertion holes 10, 10 facing the screw holes 8, 8 for bolts are provided in an annular flange 9 fitted on the end of the rising pipe 6. Has been done.

The work of connecting the seat pond 1 and the drain pipe 2 using the drain pipe connector 4 can be performed as follows.

That is, at the other end of the drain pipe 2 with one end facing the drainage path 5,
After the end portion of the horizontal pipe 6a of the elbow pipe 3 is fitted and connected so that the rising pipe 6 of the elbow pipe 3 faces upward, the opening 12 formed in the bottom sheet 11 of the seat pond 1 in the rising pipe 6 And the seat pond 1 is installed. After that, the annular flange 9 is fitted to the end of the rising pipe 6 protruding from the opening 12 of the bottom sheet 11, and the edge of the opening 12 is sandwiched between the annular flange 9 and the annular collar 7, Bolt insertion hole 10 of the annular flange 9,
Insert the tightening bolt 13 into the 10 and screw the bolt hole 8 of the annular collar 7.
The connection is completed by screwing and tightening. In the figure, 14 is a packing interposed between the head of the tightening bolt 13 and the annular flange 9. Water leakage along the tightening bolt 13 is prevented by the interposition of the packing 14 and the screwing structure of the annular collar 7 and the tightening bolt 13.

In FIG. 1, 15 is a rising pipe 6 of the elbow pipe 3 at the lower end.
Seated pond 1
The water level of the seawater or the fresh water 16 inside is kept at the height of the overflow pipe 15. When the overflow pipe 15 is pulled out from the rising pipe 6, all the seawater or fresh water 16 in the seat pond 1 can be drained.

(Effects of the Invention) As described above, according to the seat pond drainage pipe mounting device of the present invention, the bottom of the seat pond and the drainage pipe can be connected from the inside of the seat pond only by tightening and tightening the tightening bolts. Since it is possible, there is an effect that connection work can be performed easily and quickly. Further, since the elbow pipe is used, drainage or overflow can be smoothly guided to the drainage channel. Further, there is an effect that the opening portion of the bottom sheet can be securely sandwiched and strengthened.

[Brief description of drawings]

FIG. 1 is a sectional view showing a usage state of an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of an embodiment of the present invention. 1 ... Sheet pond, 2 ... Drainage pipe 3 ... Elbow pipe, 4 ... Drainage pipe connection device 6 ... Rise pipe, 7 ... Annular collar 8 ... Bolt screw hole, 9 ... Annular flange 10 ... … Bolt insertion hole, 13 …… Tightening bolt

Claims (1)

[Scope of utility model registration request] 1. An annular flange is provided on the outside of the other end of an elbow pipe to which a drainage pipe can be connected at one end, leaving at least a space for fitting an annular flange, and the annular flange is provided with a screw for a tightening bolt. While providing a hole, an annular flange having a bolt hole is fitted to the other end of the elbow tube body, a seat opening edge portion is sandwiched between the annular flange and the annular flange, and a tightening bolt is screwed, A drainage pipe mounting device for a seat pond, wherein one end of an overflow pipe is detachably fitted into the other end of the elbow pipe body.