JP3131402U - Selectable working depth for dam and pond - Google Patents

Abstract

[PROBLEMS] To easily suck up and discharge water and accumulated earth and sand existing in each layer in a water storage section by a siphon effect.
SOLUTION: A first pipeline 1, a second pipeline 2, and a third pipeline 3, wherein the first pipeline 1 is installed in a sand discharge passage T, the first end of which is the first duct. A flange 14 for closing the sand discharge passage is provided at an appropriate location on the outer peripheral surface in communication with the second end of the two pipe lines. A control valve 13 for controlling the opening and closing of the first pipeline 1 is provided at the second end of the first pipeline. A first end of the second pipe line 2 communicates with a second end of the third pipe line 3, and a sand suction head 33 is provided at the first end of the third pipe line. The second pipe line and the third pipe line are connected by a universal pipe joint, and the sand suction head 33 can move to an arbitrary depth.
[Selection] Figure 1

Description

  The present invention relates to a dam and pond sediment suction device, and in particular, the working depth can be selected for dams and ponds that can easily suck up and discharge the water in the reservoir and the sediment deposited on the bottom due to the siphon effect. The present invention relates to a suction device.

In conventional dams and ponds, as shown in Fig. 3, when the water flows in, the flow velocity slows down and the sediment accumulates at the bottom of the dams and ponds. It is divided into a clear water layer W1, a muddy water layer W2, and a soil layer SL. In order to reduce the amount of accumulated sediment, it is common to provide a sand discharge passage T that leads to the bottom of a dam or pond, and the opening and closing of the sand discharge passage T is controlled at an appropriate location of the sand discharge passage T. The gate G is provided and controlled (for example, refer to Patent Document 1). Since the entrance on the water storage section side of the sand discharge passage T is always fixed at the same position, only muddy water and earth and sand near the entrance can be discharged, and the height of the entrance is constant. The earth and sand of the layer W1, the muddy water layer W2 and the earth and sand layer SL cannot be selected and discharged. Moreover, since the sand and the like easily erode the wall surface of the sand discharge passage T when passing through the sand discharge passage T, the sand discharge passage T may be broken.
Japanese Patent Laying-Open No. 2003-64649 (FIG. 5)

  The main purpose of the present invention is to select water such as fresh water layer, turbid water layer, earth and sand layer and sifted sediment by siphon effect, easily sucking up and draining from the reservoir, working depth for dam and pond It is to provide a selectable wicking device.

  The invention of the present application made to achieve the above object includes a first pipe installed in the sand discharge passage, a second pipe and a third pipe installed in the water reservoir, and the first pipe The first end of the passage communicates with the second end of the second pipeline, and a flange for closing the sand discharge passage is provided at an appropriate location on the outer peripheral surface, and the second end of the first pipeline is provided. Is provided with a control valve for controlling the opening and closing of the first pipeline, the first end of the second pipeline communicates with the second end of the third pipeline, and the first end of the third pipeline The gist of the present invention is a suction device with a selectable working depth for dams and ponds, which is provided with a sand suction head.

  In the invention of the present application, the second pipe line is supported by a lifting tool, and the sand suction head of the third pipe line is provided with a wire for controlling a sinking depth. It is a gist that it is a suction device with a selectable working depth for dams and ponds.

  In the invention of the present application, the second pipe and the third pipe are connected by a universal pipe joint, The work depth selectable dam for dam and pond according to claim 1 or 2 The gist is that it is a device.

  Since the working depth selectable suction device for dams and ponds according to the present invention is configured as described above, the following effects can be obtained.

  (B) Since the sand suction head can be swung and submerged to the depth of the work target layer (for example, the fresh water layer W1, the muddy water layer W2 or the earth and sand layer SL), the target layer on which the suction work can be performed is free. Can be selected. Therefore, there is no limitation that only the vicinity of the entrance of the sand discharge passage T can be sucked up as in the prior art.

  (B) Soil and sand can be sucked up and discharged, and fresh water and muddy water can be sucked up and discharged.

  (C) Sediment, fresh water and muddy water discharged by suction are routed through the first pipeline 1, the second pipeline 2 and the third pipeline 3, and the inner surface of the sand discharge passage is turned into earth, sand, muddy water, etc. Since it is not exposed, there is no possibility that the wall of the sand discharge passage T is eroded and the sand discharge passage is broken.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  First, refer to FIG. The working depth selectable suction device for dams and ponds of the present invention includes a first pipeline 1, a second pipeline 2, and a third pipeline 3, wherein the first pipeline 1 is sand discharge. It is installed in the passage T. The first pipe line 1 is constituted by connecting a plurality of tubes 10, the first end 11 communicates with the second end 22 of the second pipe line 2, and sand discharge is provided at an appropriate position on the outer peripheral surface. A flange 14 for closing the entrance of the passage T is provided. A control valve 13 for controlling the opening and closing of the first pipeline 1 is provided at the second end 12 of the first pipeline.

  The second pipe line 2 is provided in the water reservoir, rises upward from the second end 22 communicating with the first pipe line, extends in the lateral direction from the middle, and is formed by connecting a plurality of tubes 20. The first end 21 communicates with the second end 32 of the third pipeline 3. The third pipe 3 is also provided in the water reservoir, and is formed by connecting a plurality of tubes 30, and a sand suction head 33 is provided at the first end 31 thereof. In order to hold the second pipe line 2 and the third pipe line 3 in water, a lifting tool 5 and a wire 4 are used, respectively. In addition, in order to enable the second pipe 2 and the third pipe 3 to turn relative to each other, a flexible pipe joint 6 or the like is provided at an appropriate position between the second pipe 2 and the third pipe 3. A movable connection means is provided.

  Next, the use state of the present invention will be described in detail with reference to FIGS. In FIG. 1, since the control valve 13 is in a closed state and the sand suction head 33 is held higher than the water surface, the first conduit 1, the second conduit 2, and the third conduit 3 are disposed inside. Does not contain any clear water, muddy water or earth and sand. Then, in order to start the siphoning operation, as shown in FIG. 2, first, the inside of the first conduit 1, the second conduit 2, and the third conduit 3 is filled with fresh water, and then the sand siphoning is performed. When the control valve is opened when the head 33 is submerged to the depth of the work target layer (for example, the water layer W1, the muddy water layer W2 or the earth and sand layer SL) to suck up the head 33, water and accumulated earth and sand are caused by the siphon effect. Can be easily sucked and discharged. It should be noted that the position of the sand suction head 33 may be controlled by being held by the control wire 7 by a person on the ship.

  As described above, the present invention has been described with reference to specific examples. However, the embodiments are illustrated for illustrative purposes only, and are not intended to limit the present invention. Those skilled in the art will recognize that changes, additions, or deletions may be made to the embodiments disclosed herein without departing from the spirit and scope of the present invention.

It is sectional drawing which shows this invention. It is sectional drawing which shows the use condition of this invention. It is sectional drawing which shows the method of discharging | emitting sand from the conventional dam and a pond.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st pipe line 10 Tube 11 1st end 12 2nd end 13 Control valve 14 Flange 2 2nd pipe line 20 Tube 21 1st end 22 2nd end 3 3rd pipe line 30 Tube 31 1st end 32 2nd end 33 Sand suction head 4 Wire 5 Lifting tool 6 Universal pipe joint

Claims (3)

  A first conduit installed in the sand discharge passage, a second conduit and a third conduit installed in the water reservoir, wherein the first end of the first conduit is the second of the second conduit A control valve that communicates with the end and has a flange for closing the sand discharge passage at an appropriate location on the outer peripheral surface thereof, and controls the opening and closing of the first conduit at the second end of the first conduit Wherein the first end of the second conduit communicates with the second end of the third conduit, and a sand suction head is provided at the first end of the third conduit. Working depth selectable suction device for dams and ponds.   The dam according to claim 1, wherein the second pipe line is supported by a lifting tool, and a sand suction head of the third pipe line is provided with a wire for controlling a sinking depth. Selectable working depth for pond.   The dam and pond working depth selectable suction device according to claim 1 or 2, wherein the second pipe line and the third pipe line are connected by a universal pipe joint.

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