JP7148294B2 - Water control device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a water flow control device, and more particularly to a water flow control device for controlling water supply from an open channel to a field or drainage from a field to an open channel.

An example of a conventional water flow control device of this type is disclosed in Patent Document 1. Patent Literature 1 discloses a water supply weir automatic opening/closing device (electric actuator) that is attached to an existing water supply weir (gate) to automatically open and close the water supply weir. This water supply weir automatic opening/closing device is provided with a driving force transmission mechanism that connects the output shaft of the motor and the drive shaft of the water supply weir and vertically moves the water supply weir by the driving force of the motor.

JP-A-8-70716

In the technique disclosed in Patent Document 1, water supply from an open channel to a field is controlled by vertically sliding a gate with an electric actuator. However, sand, dirt, and the like are likely to get caught in the sliding portion of the gate. If earth and sand get caught in the sliding portion, a large torque is required to move the gate up and down, and in some cases, the electric actuator cannot move the gate up and down.

SUMMARY OF THE INVENTION Therefore, a primary object of the present invention is to provide a novel water flow control device.

Another object of the present invention is to provide a water flow control device that can reduce the load on an electric actuator and can appropriately supply water to or drain water from a field.

A first invention is a water flow control device for controlling water supply from an open channel to a farm field or drainage from a farm field to an open channel, wherein water is passed through a water conduit opening formed in a wall of the open channel. a soft pipe that can be connected, an electric actuator that switches the soft pipe between a water-flowing state and a water-stopping state by deforming the soft pipe, and a cylindrical portion that is used as a connection portion with the soft pipe. It is a water flow control device equipped with a slide gate that can manually open and close the water inlet.

In the first invention, a water flow control device includes a soft tube and an electric actuator. A soft pipe is a flexible pipe such as a vinyl hose or a rubber hose, and is connected to a water conduit opening formed in the wall of the open water channel so as to allow water flow. A water flow control device deforms a soft pipe with an electric actuator to switch the soft pipe between a water flow state and a water stop state, thereby controlling water supply or drainage in a field. In addition, the water flow control device is equipped with a slide gate having a cylindrical portion that is used as a connecting portion with the soft pipe, and the user manually opens and closes the water conduit when replacing the soft pipe or when water supply is stopped for a long time. It is possible to

According to the first aspect of the invention, switching between water stoppage and water flow is performed by deforming the soft pipe, so the required torque can be reduced. In addition, unlike a device that slides a gate, the required torque does not increase due to sediment or the like getting caught. Therefore, the load on the electric actuator is reduced, and water can be properly supplied to the field. Also, the maintenance of the device becomes easier.

A second aspect of the invention is a water flow control device for controlling water supply from an open channel to a farm field or drainage from a farm field to an open channel, wherein water flows through a water conduit formed in a wall of the open channel. It has a soft pipe that can be connected and a pressing member that can move up and down. The pressing member is provided so as to pass through the inside of the semi-cylindrical restricting member, and the shape of the pressing member is a bullet shape or a tongue shape. This is a water flow control device that allows water flow by releasing the crushing of the pipe.

In the second invention, the electric actuator includes a vertically movable pressing member. Switching between water flow and water stop is performed by pressing and releasing the soft tube by the pressing member.

According to the second invention, it is possible to easily stop water by simply crushing the soft tube.

A third invention is according to the first invention, wherein the electric actuator includes a vertically movable connecting member connected to the soft pipe, the connecting member lifts the soft pipe to stop water, and the connecting member By releasing the lifting of the soft pipe, the water flow state is established.

In a third invention, the electric actuator includes a vertically movable connecting member that is connected to the soft tube. Then, switching between water flow and water stop is performed by lifting and releasing the soft pipe by the connecting member.

According to the third invention, the water can be easily stopped by simply lifting the soft tube.
A fourth invention is according to any one of the first to third inventions, wherein the soft tube is arranged to pass over the bottom wall of the U-shaped groove, and the device main body of the electric actuator is disposed over the U-shaped groove. is installed using a pedestal .

According to this invention, switching between water stoppage and water flow is performed by deforming the soft tube, so the required torque can be reduced. In addition, unlike a device that slides a gate, the required torque does not increase due to sediment or the like getting caught. Therefore, the load on the electric actuator is reduced, and water can be properly supplied to the field. Also, the maintenance of the device becomes easier.

The above object, other objects, features and advantages of the present invention will become more apparent from the detailed description of embodiments given below with reference to the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS It is an illustration figure which shows a mode that the water flow control apparatus which is one Example of this invention was installed in the water supply side of the agricultural field. It is an illustration figure which shows a mode that the water flow control apparatus of FIG. 1 was seen in the axial direction of a soft pipe. It is an illustration figure which shows an example of the attachment used for the water flow control apparatus of FIG. FIG. 2 is an illustrative view showing a water flow state and a water stop state in the water flow control device of FIG. 1; FIG. 8 is an illustrative view showing a water flow state and a water stop state in the water flow control device of another embodiment of the present invention; FIG. 10 is an illustrative view showing a state in which a water flow control device according to still another embodiment of the present invention is installed on the drainage side of an agricultural field; FIG. 8 is an illustrative view showing a water flow state and a water stop state in a water flow control device according to still another embodiment of the present invention;

1 and 2, a water flow control device 10 according to one embodiment of the present invention includes a soft pipe 12 and an electric actuator 14, and remotely supplies water from an irrigation channel 100, which is an open channel, to a field 102. To control by operation or automatic control or the like.

The open channel referred to in the present invention may be a channel through which the water supplied to the field 102 or the water discharged from the field 102 flows with a free surface. ) and so on.

As shown in FIGS. 1 and 2, the soft pipe 12 is a water conduit that guides irrigation water supplied from the irrigation canal 100 to the farm field 102. Connected as possible. The inner diameter of soft tube 12 is, for example, 100 mm. The soft tube 12 is not particularly limited as long as it has flexibility and can be deformed and restored as described later. For example, a vinyl hose, a rubber hose, or the like available at a home center or the like may be used as the soft tube 12 .

Flexible tube 12 is connected to water conduit 104 using attachment 16 . As the attachment 16, it is preferable to use a commercially available faucet plug as shown in FIG. Briefly explained with reference to FIGS. 1 and 3, the attachment 16 includes a back plate 20 attached along the inner wall surface of the irrigation channel 100 and a cylindrical portion 22 fitted into the water conduit 104 . A water intake 24 is formed at the lower end of the back plate 20 , and a cylindrical portion 22 is provided so as to protrude from the peripheral edge of the water intake 24 . The tubular portion 22 has such an axial length that the tip protrudes from the water guide port 104 toward the farm field 102 when fitted into the water guide port 104 . The distal end portion of the cylindrical portion 22 is used as a connection portion with the soft tube 12 . For example, one end of the soft tube 12 is fitted onto the distal end of the cylindrical portion 22 and fixed with a tightening member 26 such as a band, whereby the soft tube 12 is connected to the water conduit 104 . Therefore, the flexible tube 12 can be easily replaced by removing the tightening member 26 .

Both sides of the back plate 20 are provided with slide grooves 28 extending in the vertical direction, and slide gates 30 are attached to the slide grooves 28 to open and close the water intake 24 (and thus the water conduit 104). As will be described later, in this embodiment, the water supply from the irrigation channel 100 to the field 102 is controlled by deforming the soft pipe 12, so the slide gate 30 is basically opened. Although the slide gate 30 is not always necessary, it can be used as a main valve that can be manually opened and closed by the user when replacing the soft pipe 12 or when water supply is stopped for a long period of time. improves convenience.

1 and 2, the electric actuator 14 deforms the soft tube 12 to switch the soft tube 12 between a water passing state and a water stopping state, and is operated remotely by a user or stored in advance. It is driven by automatic control based on the program.

In this embodiment, the electric actuator 14 has a pressing member 40 that can move up and down between a raised position and a lowered position. The pipe 12 is put in a water stop state, and the soft pipe 12 is put in a water flow state by releasing the crushing.

For example, the electric actuator 14 includes a rod-shaped pressing member 40 extending in a direction perpendicular to the axial direction of the soft tube 12, and an apparatus main body 42 housing a drive mechanism (not shown) for moving the pressing member 40 up and down. Prepare. The device main body 42 is installed, for example, on a U-shaped groove 44 made of concrete or the like arranged near the water conduit 104 using a pedestal 46 or the like. Also, the soft tube 12 is arranged to pass over the bottom wall of the U-shaped groove 44 , and the pressing member 40 is arranged so as to sandwich the soft tube 12 with the bottom wall of the U-shaped groove 44 .

As the electric actuator 14, a known actuator can be appropriately used as long as it can move the pressing member 40 up and down. As an example, the one disclosed in Japanese Patent Application Laid-Open No. 2017-193914 by the present applicant can be used.

In such a water flow control device 10, as shown in FIG. 4A, when the pressing member 40 of the electric actuator 14 is in the raised position, the soft pipe 12 is in a substantially cylindrical water flow state, and the water flow from the irrigation channel 100 Water is supplied to the field 102 . On the other hand, as shown in FIG. 4(B), when the pressing member 40 is in the lowered position, the soft tube 12 is crushed by the pressing member 40, and the internal water channel is closed, resulting in a water stop state. As a result, water supply from the irrigation channel 100 to the field 102 is stopped. Further, when the pressing member 40 moves to the raised position again and the crushing of the soft tube 12 is released, the soft tube 12 is restored to a substantially cylindrical shape by the self-restoring force and the force of the water flowing through the internal water channel. It returns to the water-permeable state as shown in 4(A).

As described above, according to this embodiment, by deforming the soft tube 12, that is, by crushing and releasing the soft tube 12, switching between water stoppage and water flow (water supply) is performed. The torque required for this switching can be suppressed to a low level because it is sufficient that there is mainly a force that crushes the soft tube 12 . Moreover, since the soft tube 12 is used, the necessary torque does not increase due to sediment being caught in the gate, unlike the device that slides the gate. Therefore, the load on the electric actuator 14 is reduced, and the water supply to the field 102 can be performed appropriately. In addition, maintenance of the water flow control device 10 is facilitated.

It should be noted that specific configurations such as the arrangement of the soft tube 12 and the shape of the pressing member 40 can be appropriately changed as long as the soft tube 12 can be pressed and released by the pressing member 40 . For example, as shown in FIG. 5, the soft tube 12 can be arranged so as to pass through a restricting member 48 formed in a semi-cylindrical shape, etc., to prevent lateral displacement of the soft tube 12 . In this case, the pressing member 40 is preferably bullet-shaped or tongue-shaped so that the soft tube 12 is crushed between the pressing member 40 and the restricting member 48 .

Although not shown in the drawings, a guide member may be provided to regulate lateral displacement of the pressing member 40, guide the vertical movement of the pressing member 40, and protect the pressing member 40. FIG.

Further, not all of the water conduits extending from the irrigation channel 100 to the farm field 102 need to be the soft pipes 12. If at least the portion deformed by the electric actuator 14 is the soft pipe 12, some of the water conduits may include hard pipes. It doesn't matter if The fact that not all of the water pipes need to be soft pipes 12 is the same for other embodiments described later.

Also, in the above embodiment, an example of the water flow control device 10 provided on the water supply side of the farm field 102 has been described, but the water flow control device 10 can also be installed on the water drainage side of the farm field 102 . Hereinafter, another embodiment of the water flow control device 10 will be described with reference to FIG. , common parts are given the same reference numerals, and redundant descriptions are omitted or simplified.

As shown in FIG. 6, the water flow control device 10 of this embodiment includes a soft tube 12 and an electric actuator 14 to control drainage from a field 102 to a drainage channel 106. As shown in FIG. The soft pipe 12 is connected to a water conduit 110 formed in the wall of the falling water box 108 so as to allow water flow. In addition, the falling water box 108 is a water channel which constitutes a part of the drainage channel 106 which is an open channel.

The electric actuator 14 includes a pressing member 40 that can move up and down. By pressing the soft tube 12 from the outside with the pressing member 40, the soft tube 12 is brought into a water-stop state, and the soft tube 12 is made soft by releasing the pressing. The pipe 12 is turned on. By crushing the soft pipe 12 to stop water, the drainage from the farm field 102 to the drainage channel 106 via the falling water box 108 is stopped. In addition, by releasing the crushing of the soft pipe 12 and putting the soft pipe 12 into a water-flowing state, the water in the farm field 102 is discharged to the drainage channel 106 via the falling water box 108 .

Since the embodiment shown in FIG. 6 also has the same effect as the embodiment shown in FIG. 1, the load on the electric actuator 14 is reduced, and the drainage from the field 102 can be performed appropriately. In addition, maintenance of the water flow control device 10 is facilitated.

Next, with reference to FIG. 7, a water flow control device 10, which is still another embodiment of the present invention, will be described. The embodiment shown in FIG. 7 is different from the embodiment shown in FIG. 1 in that water is stopped by lifting the soft tube 12 instead of crushing it. Other than that, it is the same as the embodiment shown in FIG. 1, so the same reference numerals are given to the common parts, and redundant explanations are omitted.

As shown in FIG. 7, the water flow control device 10 of this embodiment includes a soft pipe 12 and an electric actuator 14, and controls water supply from the irrigation channel 100 to the field 102. As shown in FIG. In this embodiment, the electric actuator 14 is provided with a connecting member 60 that can move up and down and is connected to the soft tube 12. The connecting member 60 lifts the soft tube 12 to stop the water flow. By canceling the lifting of the soft tube 12, the soft tube 12 is brought into a water-flowing state.

For example, the electric actuator 14 has a ring-shaped connecting member 60 that is connected to the distal end of the soft tube 12 . The connecting member 60 is connected to a rope 62 extending from a winch (not shown) provided in the apparatus main body 42, and the soft tube 12 can be lifted by winding the rope 62 using the winch. In addition, the device main body 42 is installed on a frame 64, and the soft pipe 12 can be lifted by the connecting member 60 until the tip opening of the soft pipe 12 or part of the internal water channel is at a position higher than the water surface of the irrigation channel 100. It is possible.

In such a water flow control device 10, when the connecting member 60 of the electric actuator 14 is in the lowered position as shown in FIG. Water is supplied to 102 . On the other hand, as shown in FIG. 7B, when the connecting member 60 of the electric actuator 14 is moved to the raised position, the soft tube 12 is lifted by the pressing member 40 so as to curve upward. As a result, water supply from the irrigation channel 100 to the field 102 is stopped. Further, when the connecting member 60 moves to the lowered position again and the lifting of the soft pipe 12 is released, the soft pipe 12 returns to the straight pipe-like water-permeable state.

According to the embodiment shown in FIG. 7, by deforming the soft tube 12, that is, by lifting and releasing the soft tube 12, switching between water stoppage and water flow is performed. The torque required for this switching can be suppressed to a low level because it is sufficient to have a force to lift the soft tube 12 . In addition, the required torque does not increase due to sediment or the like getting caught. Therefore, the load on the electric actuator 14 is reduced, the water supply to the field 102 can be appropriately performed, and maintenance of the water flow control device 10 is facilitated.

It is also possible to install a water flow control device 10 of a type that stops water by lifting a soft pipe 12 as shown in FIG.

In addition, the specific numerical values such as the dimensions and the specific shapes given above are merely examples, and can be appropriately changed according to the needs such as the specifications of the product.

DESCRIPTION OF SYMBOLS 10... Water flow control apparatus 12... Soft tube 14... Electric actuator 16... Attachment 40... Pressing member 60... Connecting member 100... Irrigation channel 102... Field 106... Drainage channel 108... Falling box

Claims (4)

A water flow control device for controlling water supply from an open channel to a field or drainage from a field to an open channel,
A soft pipe connected to a water conduit formed in the wall of the open channel so as to allow water flow;
It has an electric actuator that switches the soft pipe between a water-flowing state and a water-stop state by deforming the soft pipe, and a cylindrical portion that is used as a connecting portion with the soft pipe, and manually opens and closes the water conduit. Water flow control device with slide gate that can be used. A water flow control device for controlling water supply from an open channel to a field or drainage from a field to an open channel,
It has a soft pipe that is connected to a water guide opening formed in the wall of the open channel so that water can flow through it, and a pressing member that can move up and down. Equipped with an electric actuator that switches between the water state and the water stop state,
The soft tube is provided so as to pass through a semi-cylindrical restricting member,
The shape of the pressing member is a bullet shape or a tongue shape,
A water flow control device, wherein the water stop state is established by pressing the soft pipe from the outside by the pressing member, and the water flow state is established by canceling the pressing of the soft pipe by the pressing member. The electric actuator includes a vertically movable connecting member that is connected to the soft tube,
2. The water flow control device according to claim 1, wherein the water cutoff state is established by lifting the soft pipe by the connecting member, and the water flow state is established by canceling the lifting of the soft pipe by the connecting member. The flexible tube is arranged to pass over the bottom wall of the U-shaped groove,
4. The water flow control device according to any one of claims 1 to 3 , wherein a device main body of said electric actuator is installed on said U-shaped groove using a pedestal.

Images