JPH0434191Y2 - - Google Patents

Description

[Detailed explanation of the invention] "Industrial application field" This invention relates to a gate pump used for irrigation, water intake, etc.

``Conventional technology'' Conventionally, in the case of small-scale pumping facilities, the foundation of the pump room was constructed relatively thin compared to the foundation of the water gate, so in areas with soft ground such as Saga, the foundation of the pump room was built unevenly. Cracks are often observed due to subsidence and slope. In particular, there is a problem in that a high-lift water pump is required to send water to underground pipes for irrigation, and the pump equipment cannot be made sacrificial.

``Problems to be solved by the invention'' The purpose of this invention is to easily provide a high-head pump facility at the water gate that does not require a pump room, is suitable for soft ground, and can send water to buried irrigation pipes. be.

"Means for Solving the Problems" In order to achieve the above purpose, this project supports an elevating and sliding opening/closing gate on a water gate installed in a waterway, and a submersible pump is installed on the gate, and when the water gate is closed by the gate, the above-mentioned A gate pump comprising a water pipe with a water supply port opening into a waterway that corresponds to the discharge port of the pump.A gate pump according to the above invention in which the waterway is inside a watergate.A strainer whose lower edge is in contact with the waterway bed when the watergate is closed is used as a gate pump. The gate pump according to the first or second invention, wherein the gate pump is arranged at least outside the suction port; The gate pump according to the first, second or third invention, wherein the strainer of the pump surrounds the pump and its drive motor. It consists of a gate pump.

"Function" Therefore, when the opening/closing gate 3 is lowered to keep the water gate 2 in the closed state, the water channel 1 on the upstream side of the gate 3
Water collects. The submersible pumps 4 installed at the gate 3 are submerged in the water, and the pumps 4 are connected in line with each other.
Through the discharge port 5 of the water pipe 7 and the water supply port 6 of the water pipe 7, water can be sent from the water pipe 7 to the target location by the operation of the pump 4.

At this time, foreign matter is stopped by the strainer 8 along with the suction water directed toward the suction port 10 of the pump 4, and the foreign matter is not sucked.

When the gate 3 is raised above the waterway 1, the pump 4, its discharge port 5, and strainer 8 also rise together with the gate 3, the watergate 2 is opened, and water passes through the waterway 2 and flows down. The water supply port 6 is opened, but the water supply pipe 7 is closed by an on-off valve (normal means not shown).

"Example" Water gate columns 12, 12 are erected on both walls 9', 9' of the waterway 1, and the water gate columns 12, 12 are connected by a floor material 13 on the waterway floor 9. The upper ends are connected by a cross member 14 to form the water gate 2. Door stops 15 in the waterway direction are formed on the left and right water gate columns 12, 12, respectively, and the left and right side edges of the opening/closing gate 3 are engaged with the door stops 15, 15 to support the gate 3 so that it can move up and down. . A submersible pump 4 is provided on one side of this opening/closing gate 3, and the lower edge 8' of the gate 3 is in contact with the water channel bed 9 when the lower edge of the gate 3 is in contact with the door stop 16 of the flooring 13 and the water gate 2 is closed. A box-shaped strainer 8 having the above structure is provided at the gate 3, and the submersible pump 4 and its driving motor 11 are housed within the strainer 8. The discharge port 5 of this pump 4
is provided with a flange 5' which opens laterally at its upper end via a discharge pipe 17 or a column or the like, and which slopes downward from above toward the center of the water channel 1. Then, a horizontally inclined water supply port 6 that coincides with and is detachably connected to the discharge port 5 is opened and protrudes from the wall 9' of the water channel 1.
The water pipe 7 having the water supply port 6 is buried under the ground 18, forming a buried pipe for supplying irrigation water to the rice fields, opening the supply port to the rice fields, and providing an on-off valve for each rice field. This requires a considerable supply water pressure and amount of water, so a high-head pump is used as the submersible pump 4. However, for simple water intake through the water pipe 7, a low head pump 4 may be used. The discharge port 5 and the water supply port 6 are provided in the waterway 1 as shown in FIGS. 1 and 2, but the water gate pillar 12
The water supply port 6 may be opened on the inner surface of the gate 3, and the discharge port 5 may be opened on the side surface of the gate 3. Further, the pump 4 may be provided inside the gate 3, or the pump 4 may be provided inside the gate 3.
may be provided on one side of the gate 3, and the discharge port 5 and the water supply port 6 may be provided on the other side of the gate 3. Discharge port 5
The water supply port 6 may be configured such that the discharge port 5 faces downward and the water supply port 6 faces upward, instead of the horizontally inclined one shown in the figure.
and the water supply port 6 may be arranged in a vertical plane, and the upper edge of the discharge port 5 may be provided with a semicircular downward receiver, and the lower edge of the water supply port 6 may be provided with a semicircular upward receiver. A pit 19 is formed in the water channel bed 9 surrounded by the lower edge 8' of the strainer 8, and a water gate 2 is formed.
Clean the inside of the pit 19 before closing.
The gate 3 may be of various shapes, such as a box shape, a plate shape, or a box shape with one side open. In the figure, 20 indicates a rubber packing provided at the water supply port 6, 21 indicates an engagement guide receiver provided at the upper edge of the flange 5' of the discharge port 5, and 2
2 is a pin rack for lifting and lowering provided on the opening/closing gate 3;
Reference numeral 3 designates a forward/reverse rotating device for a pinion that meshes with the pin rack 22, 24 a manual handle, 25 a strainer for the suction port of the pump 4, and 26 a positioning guide for the gate 3.

``Effects'' Since this project is configured as described above, a pump room is not required for small-scale pumping facilities such as irrigation, and a pump with a high head can be obtained.
The gate 3 can be kept open, making maintenance management of the pump easy, and the power supply equipment uses a portable generator, which can be used by leasing during the irrigation period, significantly reducing the equipment. This can be simplified.

[Brief explanation of the drawing]

Figure 1 is a front view of the proposed gate pump, Figure 2 is a partially enlarged view of Figure 1, Figure 3 is a left side view of Figure 1, and Figure 4 is an enlarged front view of the discharge port and water supply port. 5 is a side view taken along line A-A in FIG. 4. 1... Channel, 2... Sluice gate, 3... Lifting sliding opening/closing gate, 4... Submersible pump, 5... Discharge port, 6...
...Water inlet, 7...Water pipe, 8...Strainer,
8'...lower edge, 9...channel floor, 10...suction port,
11... Drive motor.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A lifting and sliding opening/closing gate is supported on a water gate provided in a waterway, a submersible pump is provided on the gate, and when the water gate is closed by the gate, a pump is provided that corresponds to the discharge port of the pump. A gate pump that has a water pipe with a water inlet opening into a waterway. (2) The gate pump according to claim (1), wherein the waterway is inside a water gate. (3) The gate pump according to claim (1) or (2), further comprising a strainer disposed at least outside the suction port of the pump, the lower edge of which contacts the waterway bed when the water gate is closed. (4) Claims (1) and (2) wherein the strainer of the pump surrounds the pump and its drive motor.
Or the gate pump described in (3).