JPH08120650A - Surface water-intake apparatus - Google Patents

Abstract

PURPOSE: To prevent floating dirt or the like from flowing into an intake case, and to simplify the structure while reducing cost. CONSTITUTION: In a surface water-intake apparatus that floats on the surface of the water with floats 2 and is equipped with an intake case 3 connected at its lower end opening 6 to an outlet pipe through an intake hose 8, an intake opening 3A on the upper end of the intake case 3 is surrounded at its periphery with the floats 2, and a screen 4 is provided between the intake opening 3A and the floats 2. A screen 5 is provided to the inside of the intake opening 3A, and thereby floating dirt or the like can be prevented from flowing into the intake case 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for taking in surface water from a reservoir or the like.

[0002]

2. Description of the Related Art Heretofore, as this kind of water intake device, there has been known one having a water intake cylinder which floats above the water surface by a float and has a lower end opening connected to a water discharge pipe through a flexible pipe. A float is provided in the upper center (see, for example, Japanese Utility Model Publication No. 39-2714).

[0003]

In the above-mentioned prior art, however, there is a risk that dust floating in the pond may flow in through the upper water intake opening of the water intake cylinder, resulting in troublesome processing and high cost. is there. The present invention has been made in view of the problems as described above, and an object thereof is to prevent the inflow of floating debris from the water intake opening, and to facilitate the production and reduce the cost of surface water. To provide a water intake device.

[0004]

In order to achieve the above object, the present invention takes the following means. That is, the present invention
In a surface water intake device that is floated to the water surface by a float and has a water intake pipe whose lower end opening is connected to a water discharge pipe through a water hose, the outer periphery of the upper water intake opening of the water intake pipe is surrounded by the float, and the water intake is performed. The feature is that floating garbage is prevented from flowing into the opening.

Further, the present invention is characterized in that a floating debris inflow preventing screen is provided between the float and the water intake opening and / or at the water intake opening. Further, the present invention provides
The float is provided with a buoyancy adjusting pouring / draining port.

[0006]

According to the present invention, the debris floating on the surface of a reservoir or the like is blocked by the float, and the pond water passes under the float and flows into the intake opening. Therefore, the inflow of debris should be prevented. You can Further, by providing a screen for preventing inflow of floating debris, it is possible to prevent inflow of floating debris in water.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, 1 is a reservoir, 2 is a float, 3 is a cylindrical water intake cylinder with a bottom, 4 is a connecting body also serving as a screen, 5 is a screen provided at an upper water intake opening 3A of the water intake cylinder 3, and 6
Is an opening provided in the bottom portion 3B of the water intake cylinder 3 and is a flange 7A.
An attached pipe 7 is connected, and a flexible water intake hose 8 is detachably connected to the flange 7A via a flange 8A.

The lower end of the water intake hose 8 is connected to a connecting pipe 10 through an opening / closing valve 9, and the connecting pipe 10
The lower end of is connected to the inside of the water discharge pipe 11, and the opening / closing valve 9 can be operated by the spindle 12 from above the reservoir 1. 13 is float 2 and eye nut 1
A mooring wire rope connected via 4 allows the float 2 to be moored to the pond bottom or pond wall (pond bank).

The float 2 is formed by connecting a pipe (commercially available) made of vinyl chloride, stainless steel or FRP in a rectangular shape, and the processing man-hours are drastically reduced, and the cost can be drastically reduced. The float 2 is provided with a pouring / draining port 15 for adjusting buoyancy, and a socket 17 with a plug 16 is fixed to the pouring / draining port 15. By pouring water into the float 2 or draining the float 2, By adjusting the buoyancy of No. 2, the distance from the water surface at the upper end of the water intake opening 3A can be adjusted.

The connecting body 4 also serving as a screen is formed into a square in plan view by combining flat bars 4A in a grid pattern at a predetermined pitch, and the inner end of the connecting body 4 is fixed to the outer peripheral surface of the water intake cylinder 3. , The float 2 on the outer peripheral end of the connector 4.
Are mounted and connected. The screen 5 is also constructed by fixing the flat bars 5A in parallel to the water intake cylinder 3 at a predetermined pitch.

According to the above embodiment, the pond water passes under the float 2 and flows into the upper part of the water intake cylinder 3 surrounded by the float 2 as shown by the arrow in FIG. It is taken into the inside of the pipe 3, and is guided to the water discharge pipe 11 through the water intake hose 8. Therefore, the dusts floating on the outer peripheral water surface of the float 2 are not blocked by the float 2 and flow into the water intake opening 3A. In addition, refuse floating in water below the float 2 is prevented from flowing into the water intake cylinder 3 by the screen-connecting body 4 and further blocked by the screen 5.

Further, in the above-mentioned embodiment, the screen is composed of the connecting body 4, but it may be separately provided in a suspended manner at the lower part of the float 2. Further, a vertically movable gate may be provided at the upper end of the water intake cylinder 3 so that the amount of water intake can be adjusted. The present invention is not limited to the above embodiment, for example, the plane shape of the float,
The shape can be triangular, pentagonal, hexagonal, octagonal, polygonal or circular, and the design can be changed as appropriate by adopting a flexible pipe as the water intake hose.

[0013]

As described above, according to the present invention, the outer circumference of the upper intake opening of the intake pipe is surrounded by a float so that the floating dust does not flow into the intake opening. It is possible to prevent the water from being blocked due to clogging of water, which facilitates production and reduces cost.

Further, the present invention is characterized in that a screen is provided between the float and the water intake opening and / or at the water intake opening. Can be prevented from flowing in.

Further, the present invention is characterized in that the float is provided with a pouring / draining port for adjusting the buoyancy. Therefore, by pouring or discharging pond water or the like into the float, the upper end water intake can be obtained. The amount of water intake can be changed / adjusted by changing / adjusting the distance of the opening from the water surface.

[Brief description of drawings]

FIG. 1 is an overall front view showing an embodiment of the present invention.

FIG. 2 is an enlarged plan view of an essential part of the embodiment.

3 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 Reservoir 2 Float 3 Water intake tube 3A Upper water intake opening 4 Screen combined connector 5 Screen 6 Lower end opening 8 Water intake hose 11 Water discharge pipe 15 Buoyancy adjusting water outlet

Claims (3)

[Claims] 1. A surface water intake device which comprises a water intake cylinder which floats above the water surface by a float and which has a lower end opening connected to a water discharge pipe through a water supply hose, wherein the float has an outer periphery of an upper end water intake opening of the water intake cylinder. The surface water intake device is characterized by being surrounded by, so as to prevent floating debris from flowing into the intake opening. 2. The surface water intake device according to claim 1, wherein a floating dust inflow prevention screen is provided between the float and the intake opening and / or at the intake opening. 3. The surface water intake device according to claim 1, wherein the float is provided with a buoyancy adjusting pouring / draining port.