JPS5934592Y2 - Variable weir installation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for mounting a deformable weir formed of a water-impermeable flexible sheet.

Conventionally, variable-form weirs have been installed by (1) drilling holes in the impermeable flexible sheet that forms the weir body, passing bolts through the holes and tightening and fixing them with nuts, and (2) fixing the sheets with nuts. A method has been proposed in which various types of clamp fittings with uneven surfaces are pressed and fixed using bolts and nuts.

However, in such conventional means, the seat is perforated and the uneven parts of the clamp fittings are crimped, so the fixed part of the seat is easily damaged by large external forces such as water pressure and buoyancy applied to the weir body. However, there was a drawback that the airtightness and watertightness required for variable weirs were impaired.

Therefore, the present invention has been devised for the purpose of providing a device that eliminates the drawbacks of such conventional means, and allows the seat to be securely mounted without forming holes in the seat or using clamp fittings for fixing the seat. The present invention provides a device for installing a variable weir that can be fixed to the river bed, and the more external force is applied to the weir body, the more firmly the weir is fixed to the river bed, increasing airtightness and water tightness. .

Hereinafter, embodiments of the present invention will be explained in accordance with the drawings. A mounting device is installed in this recess 2.

This installation is performed using a bottom plate 3 disposed at the bottom of the recess 2, and a front plate 4 and a rear plate 5 erected at the front and rear parts of the bottom plate 3. A holding member 5 having a circular cross section is attached, and bolts 7 are attached to the front surface of the rear plate 5.

Further, a nut 8 that engages with the bolt 7 is fixed to a movable plate 9 located between the front plate 4 and the rear plate 5, and when the bolt 7 is rotated, the movable plate 9 is translated back and forth. There is.

A presser member 10 having a circular cross section is fixed to the top of the movable plate 9 so as to protrude forward.

A core 12 is fitted between the front plate 4 and the movable plate 9, in which the end portion of a water-impermeable flexible sheet 11' formed of a cloth-filled rubber sheet is wound and overlapped. .

This sheet 11' forms the weir body 11.

Now, in order to attach the weir body 11 to the river bed 1, first rotate the bolt 7 to move the movable plate 9 backward (toward the rear plate 5 side), widen the gap between the movable plate 9 and the front plate 4, and then The core 12 is inserted into the core 12 by wrapping the ends of the sheets 11' overlappingly.

Next, rotate the bolt 7 in the opposite direction and move the moving plate 9.
is moved to the front plate 4 side.

Then, the overlapping part a of the sea 411' is the presser material 6 and the pressing material 1.
It is clamped and fixed from the front and back by the protruding peripheral surface of 0.

In this case, if the protruding peripheral surface of the holding member 6 and the pressing member 10 is made to be a smooth circumferential surface as shown in the figure, the sheet 11' will not be damaged even if the sheet 11' is strongly pressed.

Further, by ensuring a slight difference t between the holding material 6 and the pressing material 10, the sheet 11' can be more firmly fixed to the art material 6.degree. 10.

Since the device according to the present invention is configured as described above,
There is no need to form holes in the seat 11' for installation, and there is no need for clamp fittings with unevenness, so even if a large external force such as hydrostatic pressure or buoyancy is applied to the weir body 11, the fixed part of the seat 11 will remain intact. will not be damaged.

In addition, hydrostatic pressure acts on the weir body 11 from the upstream side, and buoyancy occurs when the water overflows, but in this device, if such external force acts and the weir body 11 tries to move forward or float upward, The winding prevents the core 12 from moving upward as well, and the sheet 11' is more strongly tightened between the presser material 6 and the presser material 10, resulting in even greater airtightness and watertightness. It increases.

Furthermore, since this device can be completely housed in the recess 2 formed in the riverbed 1, there are various advantages such as the device does not protrude above the riverbed 1 when installed.

[Brief explanation of the drawing]

The figure is a side view of an embodiment of the present invention. 1... River bed, 2... Concavity, 6...
... Pressing material, 10 ... Pressing material, 11 ...
...Weir body, 11'... Sheet, 12...
- Wrapping is around the core.

Claims (1)

[Scope of utility model registration request] A holding material is arranged in a recess formed in the riverbed, and a pressing material that can move forward and backward is placed behind the holding material, and an impermeable material that forms a weir body between the holding material and the pressing material is arranged. The device is used to install a variable weir in which the end of a flexible sheet is wound around a core.