JPH0533367A - Simplified water intake equipment - Google Patents

Abstract

PURPOSE:To obtain an unattended simplified intake equipment with easy maintenance and without motors. CONSTITUTION:A conduit 4 connected to an intake pipe is fixed to be set in the vertical direction along natural ground. At required interval positions in the vertical direction of the intake conduit 4, intakes 6 are arranged to be opened. To the respective intakes 6, pour spouts 9 are continuously set. With the pour spouts 9, opening or closing valves contrived to be operated to be opened or closed by a link mechanism are combined. On the link mechanism, a float 10 for operating the link mechanism is fitted. When a dam water-level is changed, then the float 10 is moved upward or downward, and the opening or closing valves are opened or closed via the link mechanism. By opening the opening or closing valves, the surface layer water of a dam flows into the intake pipe through the intake conduit 4 from the pour spouts 9. When the opening or closing valves are closed, then water-intake is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water intake facility for small-scale living dams and a simplified water intake facility used as other small and medium-sized intake facilities.

[0002]

2. Description of the Related Art A small-scale living dam requires a facility for constantly taking surface water as living water regardless of the dam water level.

In the water intake facility, the lower end of an intake pipe having a plurality of drinking cups at vertical required intervals is connected to the upstream end of an intake pipe laid so as to open at the bottom of the dam, and The lid placed on the drinking cup can be opened and closed by driving a driving device such as a motor, and the lid of the drinking cup at the location corresponding to the dam water level is opened to take in surface water, or the dam bottom At the upstream opening end of the intake pipe opened at the upper end, the lower end of the intake pipe having a drinking mouth at the upper end is rotatably connected in the vertical direction by a hinge, and by the action of a float attached near the drinking water inlet A non-powered system that allows the surface water to be taken from the drinking mouth by constantly positioning the drinking mouth on the surface layer of the water surface and rotating the intake conduit up and down following the dam water level even if the dam water level changes. Ceremony, etc. A.

[0004]

However, in the case of the above-mentioned conventional power intake facility, when the water level of the dam changes, it is necessary to open and close the dowel cover at a position corresponding to the dam water level. Maintenance is difficult, and in the case of an unpowered water intake facility, the vibration stress concentrates on the hinge in the event of an earthquake, etc., so the hinge part may be damaged.

Therefore, the present invention is easy to maintain and does not concentrate stress at one point even when an earthquake or the like occurs, and is suitable for use as a small-scale life dam intake facility or other small- and medium-sized intake facilities. It is intended to provide a simplified water intake facility.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is directed to an upstream end portion of an intake pipe opened at the bottom of a dam, of an intake pipe vertically arranged along the ground. The lower end is connected to fix the water intake conduit to the ground, and a plurality of water intake ports are opened at required vertical positions of the water intake conduit. The lower end of the mouth pipe incorporating the open / close valve is continuously provided, and a float is arranged near each of the mouth pipes, and the open / close valve is opened / closed by elevating the float between the float and the open / close valve. The link mechanism is arranged to intervene.

[0007]

When the dam water level is above the float, the on-off valve is maintained in the closed position via the link mechanism by the buoyancy of the float, and the non-water intake state is maintained. Since the float is also lowered when the dam water level is lowered, the open-close valve is opened via the link mechanism, so that the surface water is swallowed from the drinking mouth pipe and the intake is started. Further, when the dam water level drops to below the float, the on-off valve will be fully opened, and water will be taken by fully opening the on-off valve.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show an embodiment of the present invention, in which the upstream side opening of the intake pipe 3 laid in the natural ground 2 so that the upstream end of the dam 1 is open. The lower end of the water intake conduit 4 vertically arranged along the dam forming wall surface 2a of the natural ground 2 is connected to the end, and the water intake conduit 4 is connected to the dam forming wall surface 2a of the natural ground 2 via the pillar 5 or the like. A plurality of (five in the embodiment) water intakes 6 are opened at the required vertical positions in the water intake conduit 4, and each of the water intakes 6 is covered with a dust screen 7 on the outer periphery of the upper end. The lower end of the drinking mouth pipe 9 formed with the drinking mouth 8 is continuously provided so that the dam water swallowed from the drinking mouth 8 is taken in through the drinking mouth pipe 9, the intake conduit 4, and the intake pipe 3. In addition, a lever 11 having a float 10 attached to the upper end thereof is arranged in the vertical direction in the vicinity of each of the vial pipes 9, and at the lower portion of the lever 11, two links 12a, 12b, one for the upper and one for the lower link, are arranged in parallel. Each end is pivotally attached, and on the other hand, a butterfly valve 13 is incorporated as an opening / closing valve in the middle of each of the drinking pipes 9, and the opening / closing shaft 14 of the butterfly valve 13 protruding to the outside of the drinking pipe 9 and the intake conduit 4 are provided. The support shaft 15 protruding at a predetermined position on the outer wall has the above-mentioned 2
The other ends of the links 12a and 12b of the book are connected, and the lever 11 and the link 12 are connected by the buoyancy acting on the float 10.
The butterfly valve 13 is opened and closed by displacing the link mechanism composed of a and 12b in the vertical direction so as to make a parallelogram link motion, and the fully open position of the butterfly valve 13 is indicated by the double-dot chain line in FIG. 2, the lever 11 and the links 12a and 12b are set to the position where they are lowered to the lowermost portion by their own weight, and the fully closed position of the butterfly valve 13 is set to the lever 1 as shown by the solid line in FIG.
1 and the links 12a and 12b are set to the positions where they are raised to the top by the buoyancy of the float 10. In the figure, 16 is a discharge valve provided at the downstream end of the water intake pipe 3, 17 is an air pipe erected at the upper end of the water intake conduit 4 so as to open above the water surface, W.
L. Indicates the dam water level.

Dam water level W. L. However, for example, when the float 10 is submerged above any one of the floats 10 and a large buoyancy acts on the submerged float 10, the lever 11 and the link 12 are applied.
The a and 12b are lifted upward by the buoyancy of the float 10 and displaced to the set uppermost position as shown by the solid line in FIG. 2, and the butterfly valve 13 connecting the link 12a and the opening / closing shaft 14 is It is held in the fully closed state. Therefore, in this state, the dam water is not swallowed from the mouth 8 of the mouth pipe 9 and becomes a non-water intake state (this state corresponds to the lower two-stage mouth pipe 9 in FIG. 1). .. On the other hand, dam water level W. L. Due to the change, the float 10 that has been submerged until now appears on the water surface, or the float 10 that protrudes above the water surface is located on the water surface, and in this state the water level lowers and the float 10 gradually descends. Lever 11 and link 12
Since a and 12b are displaced downwards accordingly, the butterfly valve 13 is opened halfway, and the dam water swallowed from the swallow 8 depending on the opening thereof is taken from the swallow pipe 9 to the intake conduit 4, the intake pipe 4. Water will be taken in through the water pipe 3 (this state corresponds to the mouth pipe 9 in the middle portion in FIG. 1). Furthermore, the dam water level W. L. When the float 10 continues to descend and the float 10 cannot descend any further, buoyancy does not act on the float 10 at all. The butterfly valve 13 is fully opened by being displaced to the position by its own weight. Therefore, in this state, water intake is performed by fully opening the butterfly valve 13 (this state is shown in FIG.
The mouth pipe 9 up to the stage corresponds to this). It should be noted that in FIG. 1, the float 10 of the drinking pipe 9 located at the uppermost stage
However, the buoyancy is not acting at all, and the butterfly valve 13 is fully open, but the dam water level W. L. Is located below the position of the drinking cup 8, so dam water is not swallowed.

Thus, the dam water level W. L. The float valve 10 is moved up and down in accordance with the change of the position, and the butterfly valve 13 is automatically opened and closed through the displacement of the lever 11 and the links 12a and 12b, so that the butterfly valve 13 is opened from the dovetail 8 of the dovetail pipe 9. Surface water can be taken.

In the above description, the butterfly valve 13 can be a commercially available product, and the cup 8, the float 10, the lever 11 and the links 12a, 12b and the like can be standardized according to the amount of water taken, thus reducing the manufacturing cost. In addition to being able to suppress the cost and provide an inexpensive water intake facility, it is also unmanned, unpowered, and maintenance-free (made of SUS), so maintenance costs are also low. Furthermore, since the water intake conduit 4 can be easily installed on the natural ground 2 by using the pillars 5 or the like, civil engineering work costs can be suppressed,
It is possible to avoid an increase in installation cost. Further, as described above, since the water intake conduit 4 is fixed to the ground 2, the stress does not concentrate at one point even if an earthquake or the like occurs, and a safe design can be achieved.

The present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

[0014]

As described above, according to the simplified water intake equipment of the present invention, the drinking pipe incorporating the open / close valve is connected to each intake of the vertical intake pipe fixed to the ground, and Since the on-off valve has a configuration that can be opened and closed by operating the link mechanism that uses lifting and lowering of the float, surface water is supplied from the dovetail pipe at a position according to the dam water level in an unmanned, unpowered, and maintenance-free state. It is possible to reliably take in water, which facilitates maintenance and management, and because the intake pipe is fixed to the ground, it is safe without concentrating stress even at earthquakes and small-scale living. Adopted as dam water intake equipment and other small and medium water intake equipment, which is extremely advantageous,
Exerts an excellent effect.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of a simplified water intake facility of the present invention.

FIG. 2 is a partially cut enlarged side view showing details of a mouthpiece tube portion.

[Explanation of symbols]

 1 Dam 2 Ground 3 Intake pipe 4 Intake conduit 6 Intake port 8 Drinking mouth 9 Drinking pipe 10 Float 11 Lever (link mechanism) 12a, 12b Link (link mechanism) 13 Butterfly valve (opening / closing valve)

Claims (1)

Claim: What is claimed is: 1. A lower end of an intake pipe vertically arranged along the ground is connected to an upstream end of the intake pipe opened at the bottom of the dam to connect the intake pipe. The lower end of the dowel pipe which is fixed to the ground and has a plurality of water intakes opened at required vertical positions of the water intake conduit, and each of the water intakes has a dowel at the upper end and an opening / closing valve in the middle part. In addition, a float is arranged in the vicinity of each mouth pipe, and a link mechanism is arranged between the float and the on-off valve to open and close the on-off valve by raising and lowering the float. A simplified water intake facility having a configuration.