JP2018093864A - Water supply device and supply water switching mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water supply device which can be reliably operated over a long period of time, further can be constructed simply, and can be minimized.SOLUTION: A water supply device includes a water guide pipe P for discharging the water of a water source from a discharge port P2 to a cultivation land by connecting an inlet P1 to a water intake port Q provided in the water source such as a water channel, a casing 10 for housing the water guide pipe P, an elevating member 20 for supporting a supported portion P3 set on the discharge port P2 side than the inlet P1 in the water guide pipe P, and an actuator 30 for vertically moving the supported portion P3 between a water supply position A where water is discharged from the discharge port P2 and a water stop position B upper than the water supply position A by going the elevating member 20 up and down, thereby providing the actuator 30 in the casing 10.SELECTED DRAWING: Figure 2

Description

  The present invention relates to, for example, a water supply device that supplies water from a water channel to a cultivated land such as a paddy field, and a feed water switching mechanism used in the water supply device.

  As this type of water supply device, an inlet is connected to a water intake provided in the irrigation channel, and a water conduit that discharges water from the irrigation channel from the discharge port is provided, and a shutter valve provided in the water conduit is controlled. There is one configured to be able to switch between water supply and water stop.

  Further, as another configuration not using the shutter valve, as shown in Patent Document 1, a rope is attached to the above-described water conduit, and the rope is wound up by a motor provided above a support column driven into a paddy field. There is something. With such a configuration, water is discharged from the discharge port by making the discharge port of the water conduit lower than the water surface of the irrigation channel, and water is stopped by making the discharge port higher than the water surface of the irrigation channel.

  However, in the former configuration, if the shutter valve bites the weed or the like flowing in the irrigation channel, it may not operate normally, and it may not be possible to reliably switch between water supply and water stoppage.

On the other hand, in the latter configuration, the column tends to be displaced or inclined with age, and as a result, the discharge port of the water conduit cannot be lifted above the water surface of the irrigation channel, resulting in malfunction. May cause.
Furthermore, in this configuration, there is a problem that it is necessary to drive a support column and the construction of the apparatus becomes difficult, and the apparatus becomes large.

JP 2002-330647 A

  Accordingly, the present invention has been made to solve the above-described problems, and it is intended to provide a water supply device that can be reliably operated over a long period of time, and that is easy to construct and can be made compact. This is the main issue.

  That is, the water supply apparatus according to the present invention has a water inlet pipe connected to a water intake provided in a water source such as a water channel, and discharges water from the water source from the outlet to the cultivated land, and houses the water pipe. A casing, an elevating member that supports a supported portion that is set closer to the discharge port than the inflow port in the water conduit, and a water supply position where the elevating member is moved up and down to discharge water from the discharge port, and An actuator that moves the supported portion up and down between a water stop position above the water supply position, and the actuator is provided in the casing.

  In the case of the water supply device configured as described above, since a shutter valve that may cause a malfunction or a support column that tends to be tilted or displaced is not used, the water supply device can be reliably operated over a long period of time. In addition, since the work of driving the support column can be made unnecessary, the construction is simple, and the actuator is provided in the casing, so that the size can be reduced.

  In order to make the entire device more compact in the height direction than the conventional configuration in which the rope is attached to the water conduit and pulled up, the device rotates around the rotating shaft provided in the casing and is displaced to the position displaced from the rotating shaft. It is preferable that the apparatus further includes an arm member to which an elevating member is attached, and the actuator rotates the arm member to raise and lower the elevating member.

The arm member rotates around a fulcrum point, and the lifting member is attached to the point of action. The actuator is set between the fulcrum point of the arm member and the point of action. It is preferable to have a telescopic member connected to the power point.
If such a configuration, the force point location is set between the fulcrum location and the action point location, the amount of movement of the force point location is smaller than the amount of movement of the action point location when rotating the arm member, Since the expansion / contraction member is connected to this power point location, the stroke amount of the expansion / contraction member when switching between water supply and water stop can be reduced.

  As a more specific embodiment, the force point location is located above the fulcrum location and the action point location, and the expansion and contraction member expands and contracts while rotating around a rotation axis provided in the casing. The structure to do is mentioned.

Further, the supply water switching mechanism according to the present invention is a casing that houses a water conduit that has an inlet connected to a water intake provided in a water source such as a water channel, and that discharges water from the water source to the cultivated land. And an elevating member that supports a supported portion that is set closer to the discharge port than the inflow port in the water conduit, and a water supply position where the elevating member is moved up and down to discharge water from the discharge port, and An actuator that moves the supported portion up and down between a water stop position above the water supply position, and the actuator is provided in the casing.
If it is such a stop water switching mechanism, the same effect as the water supply apparatus mentioned above can be exhibited.

  According to the present invention configured as described above, it is possible to provide a water supply apparatus that can be reliably operated over a long period of time and that is easy to construct and can be made compact.

The figure which shows typically the use condition of the water supply apparatus of this embodiment. The figure which shows typically the structure in the water supply state of the water supply apparatus of the embodiment. The figure which shows typically the structure in the water stop state of the water supply apparatus of the embodiment. The figure which shows typically the use condition of the water supply apparatus of deformation | transformation embodiment. The figure which shows typically the use condition of the water supply apparatus of deformation | transformation embodiment. The figure which shows typically the use condition of the water supply apparatus of deformation | transformation embodiment. The figure which shows typically the use condition of the water supply apparatus of deformation | transformation embodiment.

  Hereinafter, an embodiment of a water supply apparatus according to the present invention will be described with reference to the drawings.

  1, the water supply apparatus 100 which concerns on this embodiment is arrange | positioned between water sources, such as the open water channel L, and cultivation fields, such as the paddy field Z, and supplies the water of the open water channel L to the paddy field Z, as shown in FIG. It is. The open water channel L is a type of water channel through which water flows, and the water level (water surface) varies.

  Specifically, as shown in FIG. 1, the water supply device 100 includes a water guide pipe P and a water stop water switching mechanism 101 that switches between water supply and water stop by raising and lowering part of the water guide pipe P.

The inlet pipe P1 is connected to the intake port Q provided in the open channel L, and the water conduit P discharges the water of the open channel L to the paddy field Z from the discharge port P2.
In addition, the water intake Q here is opening of the piping embed | buried under the foot of the open channel L, for example.

  As shown in FIGS. 2 and 3, the feed water switching mechanism 101 includes a casing 10 that houses the water conduit P, a lifting member 20 that supports the water conduit P, and an actuator 30 that lifts and lowers the lifting member 20. ing.

  The casing 10 has a long shape in which a housing space S for housing the water conduit P is formed, and is arranged so that the longitudinal direction is orthogonal to the open channel L. Specifically, the casing 10 is made of, for example, a metal such as stainless steel, and includes a bottom plate 11 and a pair of side plates 12 rising from the bottom plate 11 so as to sandwich the water conduit P, and is surrounded by the bottom plate 11 and the pair of side plates 12. The space thus formed is formed as the accommodation space S.

The side plate 12 here has a flange portion 13 formed at the upper end portion thereof.
The flange portion 13 includes a first flange portion 131 that is bent outward in the width direction of the casing 10 at the upper end portion of the side plate 12, and a second flange portion 132 that is bent upward from the outer end portion of the first flange portion 131. Consists of.

  The elevating member 20 supports a part (hereinafter referred to as a supported portion P3) closer to the discharge port P2 than the inflow port P1 of the water conduit P. Here, as shown in FIG. An end portion on the discharge port P2 side is a supported portion P3. The elevating member 20 has a support surface 21 that supports the supported portion P <b> 3 from below, and has a U shape when viewed from the longitudinal direction of the casing 10. Here, the support surface 21 is a curved surface that is curved along the outer peripheral surface of the water conduit P.

  As shown in FIGS. 2 and 3, the stop water switching mechanism 101 of the present embodiment rotates around a rotation shaft provided in the casing 10, and a lifting member 20 is attached at a position displaced from the rotation shaft. The arm member 40 is further provided.

  The arm member 40 extends along the longitudinal direction of the casing 10, the elevating member 20 is attached to an action point location 41 set at one end, and a rotating shaft is provided at a fulcrum location 42 set at the other end. The uniaxial member X1 penetrates, and the action point location 41 rotates around the fulcrum location 42. Here, a pair of arm members 40 are provided, and the upper side of the support surface 21 of the elevating member 20 is attached to the point of action 41 of each arm member 40.

More specifically, the through hole h1 is formed at the action point 41 of the arm member 40, and the through hole h2 is formed above the support surface 21 of the elevating member 20, and the through hole of the arm member 40 is formed. In a state where h1 and the through hole h2 of the elevating member 20 are overlapped, the second shaft member X2 orthogonal to the longitudinal direction of the casing 10 is passed through the through holes h1 and h2. Thereby, the raising / lowering member 20 is attached to the action | operation point location 41 of the arm member 40 in the state which can rotate by making the 2nd shaft member X2 into a rotating shaft.
A plurality of through holes h1 and h2 are formed along the height direction, and the height of the elevating member 20 can be changed by changing the through holes h1 and h2 that penetrate the second shaft member X2. is there.

On the other hand, the first shaft member X1 penetrated through the fulcrum portion 42 of the arm member 40 extends in a direction orthogonal to the longitudinal direction of the casing 10, and the through holes h3 formed in the pair of side plates 12 constituting the casing 10, respectively. To penetrate. Thereby, the arm member 40 is attached to the casing 10 in a state in which the arm member 40 can rotate about the first shaft member X1 as a rotation axis.
Here, a plurality of through holes h3 are formed in the flange portion 13 (specifically, the second flange portion 132) along the longitudinal direction of the casing 10, and the through holes h3 through which the first shaft member X1 passes. The position of the elevating member 20 along the longitudinal direction of the casing 10, that is, the distance of the elevating member 20 from the paddy field Z can be changed.

As shown in FIG. 1, the actuator 30 raises and lowers the elevating member 20, so that the supported portion P <b> 3 of the water conduit P is discharged from the discharge port P <b> 2 and the water supply position A and the water supply position A are stopped above It moves up and down between water positions B.
The water supply position A is a position where the discharge port P2 of the water conduit P is lower than the water surface of the open channel L, and the water stop position B is a position where the discharge port P2 of the water conduit P is higher than the water surface of the open channel L. It is.

  In the present embodiment, the actuator 30 is attached to the casing 10. More specifically, the actuator 30 is attached to the casing 10 via a third shaft member X3 provided in the casing 10, and is rotatably provided with the third shaft member X3 as a rotation axis.

The third shaft member X3 extends in a direction orthogonal to the longitudinal direction of the casing 10 as in the first shaft member X1 described above, and is a through hole formed in the side plate 12 (specifically, the second flange portion 132). It penetrates h4.
Here, a plurality of through holes h4 are formed in the second flange portion 132 along the longitudinal direction of the casing 10, and by changing the through holes h4 through which the third shaft member X3 passes, The position of the actuator 30 along the longitudinal direction can be changed.

  A specific configuration of the actuator 30 includes an expansion / contraction member 31 that can expand and contract in a linear direction. Here, the actuator 30 is an electric cylinder that includes a motor that expands and contracts the expansion / contraction member 31.

  The expansion / contraction member 31 is expandable / contractible with respect to the third shaft member X3 described above, and moves between the extended position a and the contracted position b contracted from the extended position a as shown in FIG. . The expansion / contraction member 31 is connected to a force point location 43 set between the action point location 41 and the fulcrum location 42 of the arm member 40.

  More specifically, the arm member 40 of the present embodiment has an arch shape protruding upward, and the force point location 43 is located above the action point location 41 and the fulcrum location 42. Then, the fourth shaft member X4 is bridged between the power point locations 43 of each of the pair of arm members 40, and the fourth shaft member X4 is passed through the distal end portion of the telescopic member 31, thereby the power point of the telescopic member 31 and the arm member 40. The point 43 is connected.

  With the above-described configuration, the arm member 40 rotates around the fulcrum location 42 by expanding and contracting the expansion / contraction member 31 connected to the power point location 43. Thereby, the raising / lowering member 20 attached to the action point location 41 of the arm member 40 rotates in conjunction with the arm member 40, and the supported portion P <b> 3 of the water conduit P moves between the water supply position A and the water stop position B. Moving.

Next, operation | movement of the water supply apparatus 100 of this embodiment is demonstrated.
In addition, the stop water by the water supply apparatus 100 is controlled by a control device (not shown), specifically, a method of switching the stop water based on a detection water level of a water level sensor (not shown) provided in the paddy field Z, Examples include a method of switching the water supply based on a preset time interval and time, a method of switching the water supply stop by wireless remote control, and the like.

First, it is assumed that the water supply apparatus 100 is in a water stop state where water is not supplied to the paddy field Z.
When supplying water from the open channel L to the paddy field Z from this state, a control device (not shown) transmits a water supply start signal to the actuator 30 and extends the expansion / contraction member 31 of the actuator 30 from the contracted position b toward the extended position a. . Then, in conjunction with the extension of the telescopic member 31, the actuator 30 rotates about the third shaft member X3 and the elevating member 20 rotates about the first shaft member X1. Thereby, the supported part P3 of the water conduit P moves from the water stop position B toward the water supply position A, the supported part P3 and the discharge port P2 are lowered below the water surface of the open channel L, and water supply starts. Is done.

  Next, when water supply is stopped, a control device (not shown) transmits a water supply stop signal to the actuator 30 to contract the expansion / contraction member 31 of the actuator 30 from the expansion position a toward the contraction position b. Then, in conjunction with the contraction of the telescopic member 31, the actuator 30 rotates about the third shaft member X3, and the elevating member 20 rotates about the first shaft member X1. As a result, the supported part P3 of the water conduit P moves from the water supply position A toward the water stop position B, the supported part P3 and the discharge port P2 rise above the water surface of the open channel L, and water supply stops. Is done.

  As shown in FIG. 1, the water supply device 100 of the present embodiment is configured such that the elevating member 20 crushes the supported portion P3 when the supported portion P3 of the water conduit P is in the water stop position B. .

  More specifically, here, the water guide pipe P is made of a flexible material that easily deforms, such as a vinyl hose, and is deformed according to the amount of water flowing inside. Thereby, in the water supply state in which the supported part P3 of the water conduit P is in the water supply position A, the shape of the water conduit P is maintained in a tubular shape by the internal pressure of the water flowing through the water conduit P.

On the other hand, when the supported portion P3 of the water conduit P moves from the water supply position A toward the water stop position B, the amount of water flowing through the water conduit P gradually decreases, so the internal pressure of the water conduit P decreases and the water conduit P Is deformed.
When the supported portion P3 reaches the water stop position B, the discharge port P2 side of the water conduit P than the supported portion P3 hangs down from the elevating member 20, and the supported portion P3 is crushed by the edge of the elevating member 20. As a result, the internal flow path of the water conduit P is closed.
Thereby, for example, after a day with a lot of precipitation, even if the water surface of the irrigation channel is located slightly above the discharge port P2 of the water conduit P, the water can be stopped.

  According to the water supply apparatus 100 according to the present embodiment configured as described above, a shutter valve that may cause a malfunction or a support column that is liable to tilt or shift is not used, and thus operates reliably over a long period of time. be able to. In addition, since the work of driving the struts can be made unnecessary, the construction is simple and the actuator 30 is provided in the casing 10, so that the entire apparatus can be made compact in the height direction.

  Moreover, since the to-be-supported part P3 of the water guide pipe P can be moved between the water supply position A and the water stop position B by extending / contracting the expansion / contraction member 31 connected to the arm member 40, the water guide pipe is conventionally used. Compared to the configuration in which the rope is attached to the cable and pulled up, the entire apparatus can be made more compact in the height direction.

  Furthermore, since the expansion / contraction member 31 is connected to the power point location 43 set between the action point location 41 and the fulcrum location 42 of the arm member 40, the water guide pipe P is moved between the water supply position A and the water stop position B. The stroke amount of the expansion / contraction member 31 can be reduced, and the actuator 30 can be downsized.

  In addition, since the elevating member 20 supports the water conduit P from below, when the supported portion P3 of the water conduit P is moved from the water supply position A to the water stop position B, the water conduit P is not lifted from above. , Lift from below. Thereby, even if a soft material such as a vinyl hose is used as the water conduit P, the water conduit P can be moved to the water stop position without being damaged. Thereby, what is cheap and easy to handle can be used as the water conduit P, and workability at the time of attaching or removing the water conduit P can be improved, and cost can be reduced.

  The present invention is not limited to the above embodiment.

For example, the water conduit P is not limited to a vinyl hose but may be a deformable material such as rubber or a flexible material such as a bellows.
Further, the water conduit P does not necessarily need to be crushed as in the above-described embodiment. As shown in FIG. 4, in the water stop state, the discharge port P <b> 2 extends from the water surface of the open channel L without being crushed. May also be located above.

Although the casing 10 has a long metal shape in the above-described embodiment, the material may be a resin or the like, and the shape is not necessarily long.
Moreover, although the casing 10 of the said embodiment was provided with the flange part 13 in the upper end part of the side plate 12, as the casing 10, the flange part 13 does not necessarily need to be provided.

The elevating member 20 supports the water conduit P from below in the above embodiment, but may be configured to support from above using a rope or the like, for example. In this case, the part attached to the water conduit P among ropes is an elevating member.
Moreover, although the raising / lowering member 20 of the said embodiment supported the discharge port P2 side of the water conduit P, it may support the center part and the inflow port P1 side of the water conduit P. That is, the supported portion P3 may be appropriately changed as long as it is on the discharge port P2 side with respect to the inflow port P1.

The actuator 30 moves the water guide pipe P from the water supply position A to the water stop position B by moving the expansion / contraction member 31 from the expansion position a to the contraction position b, and the expansion / contraction member 31 moves from the contraction position b to the expansion position a. Thus, the water guide pipe P is configured to move from the water stop position B to the water supply position A, but the reverse configuration may be used.
That is, the actuator 30 moves the water guide pipe P from the water stop position B to the water supply position A by moving the expansion / contraction member 31 from the expansion position a to the contraction position b, and the expansion / contraction member 31 moves from the contraction position b to the expansion position a. You may be comprised so that the water conduit P may be moved from the water supply position A to the water stop position B by moving. As such a specific example, as shown in FIG. 5, it is conceivable that the water supply device 100 is disposed in the front-rear direction opposite to the embodiment.
Further, the actuator 30 is not limited to the electric cylinder of the above-described embodiment, and an actuator using an air cylinder, a rack and pinion mechanism, or the like may be used.

Furthermore, although the arm member 40 of the above-described embodiment has an arch shape protruding upward, it may be an arch shape protruding downward or a linear shape.
Moreover, in the arm member 40 of the said embodiment, although the power point location 43 was set between the action point location 41 and the fulcrum location 42, one end side and others other than the action point location 41 set to the one end part. You may set the power spot location 43 in the other end side further than the fulcrum location 42 set to the edge part.

A more specific embodiment of the modification of the arm member 40 will be described. As shown in FIG. 6, a single arm member 40 may be used. The material of the arm member 40 is preferably an inexpensive and lightweight material such as aluminum or resin, but other materials may be used.
The arm member 40 has a rod-like shape, and, similarly to the above-described embodiment, an action point location 41 is set at one end portion, and a fulcrum location 42 is set at the other end portion. And the power point location 43 is set between the fulcrum locations 42.

  If the supply water switching mechanism 101 is configured as described above, the single arm member 40 is used, so that it can be made cheaper than the above embodiment.

In the embodiment shown in FIG. 6, one end of a string-like member 50 such as a wire or rope is attached to the action point 41 and the other end of the string-like member 50 is attached to the elevating member 20. A lifting member 20 is suspended from 41.
The elevating member 20 here is different from the shape of the above embodiment and has a cylindrical shape, specifically, a cylindrical shape, but a rectangular cylindrical shape or a polygonal cylindrical shape. It doesn't matter. With this shape, the elevating member 20 has a holding surface 22 that opposes the support surface 21 and presses the water conduit P from above. When the elevating member 20 descends, the pressing surface 22 pushes the water conduit P down. It is comprised so that it may push down below.

  For example, if the water conduit P is made of a flexible material such as a vinyl hose that is easily deformed, the lift member 20 is lowered while the water supply and the water stop are repeated simply by supporting the water conduit P from below with the lift member 20. Even if the guide pipe P is deformed, it may not come down as it is deformed. With the above-described configuration, the holding surface 22 pushes the guide pipe P downward by lowering the elevating member 20, so the guide pipe P is lowered. Can be taken down reliably.

Further, in FIG. 6 and the embodiment, an electric cylinder is used as the actuator 30, but a motor may be used as the actuator 30 as shown in FIG. 7.
In this embodiment, the motor as the actuator 30 is provided integrally with the casing 10, and winds or sends out the string-like member 50 attached to the elevating member 20. The string-like member 50 is hooked on, for example, a pulley provided on the support column and positioned above the elevating member 20.
With this configuration, the motor 30 moves the supported portion P3 of the water guide pipe P from the water supply position A toward the water stop position B by winding the string member 50 attached to the elevating member 20, and this string shape By sending out the member 50, the supported portion P3 of the water conduit P is moved from the water stop position B toward the water supply position A.

  When the elevating member 20 is suspended by the string-like member 50 as described above, even if the string-like member 50 is sent out, if the elevating member 20 is not lowered by its own weight, the string-like member 50 is only loosened and the water guide pipe P is not lowered. . Therefore, in the embodiment shown in FIG. 7, a weight is attached to the lifting member 20. Thereby, the raising / lowering member 20 can be forcedly lowered by the weight by sending out the string-like member 50, and the water conduit P can be reliably lowered. If the elevating member 20 is suspended by a bar-like member that is not slack instead of the string-like member 50, the elevating member 20 can be forcibly lowered without providing a weight for the elevating member 20.

The water supply apparatus 100 may be entirely or partially covered with a box or the like from the viewpoint of being buried in the ground or waterproofing.
Moreover, although the water supply apparatus 100 of the said embodiment was demonstrated as what is used with the water conduit P, the water supply apparatus 100 is good also as a thing provided with the water conduit P.

  Furthermore, the water supply apparatus 100 according to the present invention may be used not only for supplying water to the paddy field Z but also for supplying water to, for example, a field or a garden. A tank or pipeline may be used as a water source.

  In addition, it goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 100 ... Water supply apparatus 101 ... Stop water switching mechanism Z ... Paddy field L ... Open channel P ... Water guide pipe 10 ... Casing 20 ... Lifting member 30 ... Actuator 31 ..Expandable members

Claims (5)

An inlet is connected to a water intake provided in a water source such as a water channel, and a water conduit that discharges water from the water source to the cultivated land from the discharge port;
A casing for housing the water conduit;
An elevating member for supporting a supported portion set on the discharge port side with respect to the inflow port in the water conduit;
An actuator for moving the supported portion up and down between a water supply position where water is discharged from the discharge port and a water stop position above the water supply position by raising and lowering the elevating member;
The water supply apparatus in which the said actuator is provided in the said casing. An arm member that rotates about a rotation axis provided in the casing and that is attached to the lifting member at a position displaced from the rotation axis;
The water supply apparatus according to claim 1, wherein the actuator rotates the arm member to raise and lower the elevating member. The arm member rotates around a fulcrum point, and the lifting member is attached to the point of action.
The water supply device according to claim 2, wherein the actuator has an expansion / contraction member connected to a force point location set between the fulcrum location and the action location location of the arm member. The force point location is located above the action point location and the fulcrum location,
The water supply device according to claim 3, wherein the expansion and contraction member expands and contracts while rotating around a rotation axis provided in the casing. A casing that houses a water conduit that is connected to an intake port provided in a water source such as a water channel, and that discharges water from the water source from the discharge port to the cultivated land;
An elevating member for supporting a supported portion set on the discharge port side with respect to the inflow port in the water conduit;
An actuator for moving the supported portion up and down between a water supply position where water is discharged from the discharge port and a water stop position above the water supply position by raising and lowering the elevating member;
A feed water switching mechanism in which the actuator is provided in the casing.