JP2007028959A - Automatic water feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an automatic water feeder facilitating its installing work, maintenance work, or the like. <P>SOLUTION: The water feeder is integrally provided with a conduit which is connected to an opened waterway, a means for changing the position of the conduit which changes the position of a water introduction port opened on the end of the conduit, a control means for controling the means for changing the position of the conduit, and a water level detecting means which is connected to the control means and detects the water level of a rice field. The conduit is detachably connected to the opened waterway. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an automatic water supply apparatus that automatically supplies water to paddy fields.

  Conventionally, as one form of an automatic water supply device, a diversion channel is formed by branching to an open water channel, and a diversion weir is arranged in the diversion channel so that it can be raised and lowered. In addition, a control means is connected to the control means, and a water level detection means is connected to the control means (for example, see Patent Document 1).

In this way, the water level of the paddy field is detected by the water level detection means, and the control means moves the water weir up and down through the lifting means based on the detection result of the water level detection means, The water supply control to be performed at the same time can be automatically performed.
JP-A-8-70716

  However, in the above-described automatic water supply apparatus, since the water guide weir is arranged so as to be movable up and down in the water guide channel formed by branching to the open water channel, and the water guide weir is moved up and down by the elevator means, When a trouble occurs in the water weir, maintenance and repairs must be performed in the vicinity of the open water channel that is the place, and these operations are complicated.

  Therefore, in the present invention, a water conduit that is connected to the open water channel, a water conduit portion position changing unit that changes the position of the water guide port portion that is opened at the tip of the water conduit, and the water guide port portion changing means are provided. The control means for controlling and the water level detecting means for detecting the water level in the paddy field connected to the control means are integrally provided, and the water conduit is detachably connected to the open water channel. An automatic water supply device is provided.

  Further, in the present invention, the water conduit has the base end portion connected to the open water channel, and the front end portion of the water conduit is disposed so as to intersect the axis of the base end portion, and the axis of the base end portion. It is possible to rotate around the water stop position where the water inlet port opened at the tip is located above the water surface in the open water channel, and the water inlet port is below the water surface in the open water channel. The position can be freely changed to the arranged water conveyance position, and based on the detection result of the water level detection means, the control means automatically changes the position of the water conveyance port via the water conveyance pipe position change means. Also has features.

  (1) In the present invention described in claim 1, a water guide pipe that is connected to the open water channel, a water guide port position changing means that changes the position of the water guide port portion opened at the tip of the water guide pipe, A control means for controlling the water inlet position changing means and a water level detection means for detecting the water level in the paddy field connected to the control means are integrally provided, and the water conduit is detachably connected to the open water channel. It is possible.

  In this way, the automatic water supply apparatus according to the present invention is integrated, and the water guide pipe can be detachably connected to the open water channel so that the work for attaching the automatic water supply apparatus, the maintenance work, etc. are open. A desired work can be easily and reliably performed at a place separated from the open water channel by connecting and removing the water guide tube which is detachably connected to the water channel. As a result, the efficiency of the above work can be improved.

  (2) In the present invention described in claim 2, the water conduit has a base end portion connected to the open water channel, and a distal end portion of the water conduit is disposed in a state intersecting with the axis of the base end portion, and And a water stop position in which the water inlet opening opened at the distal end is arranged above the water surface in the open water channel, and the water inlet is located in the open water channel. It is possible to change the position of the water inlet position below the water surface, and the control means automatically changes the position of the water inlet port via the water pipe position changing means based on the detection result of the water level detecting means. Like to do.

  In this way, the water supply from the open channel to the paddy field is stopped by simply rotating the tip of the water conduit and changing the position of the water inlet at the tip to the water stop position and the water guide position. Or water can be introduced.

  At this time, since the water guide pipe can be switched between water stoppage and water supply without providing an on-off valve, foreign substances contained in the water of the open water channel damage the inner surface of the valve body, etc. It is possible to avoid the problem of shortening the life of the valve body. As a result, it is possible to reduce maintenance work and costs of the water conduit.

  Moreover, since only the water guide pipe is rotated, the structure can be simplified, and the trouble of valve closing adjustment and the like can be eliminated.

  A shown in FIG. 1 is an automatic water supply apparatus according to the present invention. The automatic water supply apparatus A is formed from a side of a paddy field 2 on a water guide section 3 formed by projecting from an open water channel 1 to a paddy field 2 side in a square shape. Based on the result of detecting the water level of the paddy field 2, the water W in the open water channel 1 can be automatically introduced into the paddy field 2 and supplied.

  That is, as shown in FIGS. 2 and 3, the automatic water supply apparatus A includes a casing body 9, a water conduit 10 provided at the lower portion of the casing body 9 and connected to the open water channel 1, and the water conduit 10. The water inlet position changing means 11 for changing the position of the water inlet opening 10a opened at the tip, the control means 12 for controlling the water inlet position changing means 11, and the paddy field 2 connected to the control means 12 A water level detecting means 13 for detecting the water level inside is integrally provided.

  And the casing body 9 is formed in the square box shape extended in an up-down direction.

  Further, the water conduit 10 has a communicating pipe 14 projecting substantially horizontally from the water guiding section 3 formed in the open water channel 1 toward the paddy field 2, and the cylindrical base of the guiding pipe 10 is formed on the outer peripheral surface of the projecting section of the communicating pipe 14. The inner peripheral surface of the end portion 10b is fitted to form an inner / outer double tube state, and in this state, it is detachably connected through a connecting screw 26.

  Here, the water conduit 10 has a cylindrical base end portion 10b extending in the left-right direction, and one side end portion of a cylindrical intermediate portion 10c bent in an L shape on the outer peripheral surface of the cylindrical base end portion 10b. The inner peripheral surface of 10d is fitted and is rotatable around the axis C of the cylindrical base end portion 10b, and the other end portion of the cylindrical intermediate portion 10c is extended to extend the cylindrical distal end portion 10e. Forming.

  In this way, the cylindrical distal end portion 10e is arranged in a state intersecting with the axis C of the cylindrical proximal end portion 10b, in a state of being substantially orthogonal in the present embodiment, and around the axial line of the cylindrical proximal end portion 10b. The water stop position (a) in which the water inlet 10a that opens to the cylindrical tip 10e is disposed above the water surface in the open water channel 1 (in this embodiment, the water inlet (A position where 10a is directed directly above) and a water introduction position (b) in which the water introduction port portion 10a is arranged substantially parallel to the water surface in the open water channel 1 (in this embodiment, the water introduction port portion 10a is directed substantially in the horizontal direction) The position can be changed freely.

  Moreover, the water inlet 10a is arranged above the level L of the top end face 1a of the open water channel 1 at the water stop position (A).

  In this way, since the water inlet 10a is disposed at a position above the level L of the top end surface 1a of the open water channel 1 at the water stop position (A), the water guide port 10a is separated from the open water channel 1 by a heavy rain or the like. Even in a situation where the water W overflows, it is possible to easily prevent the water from overflowing from the water inlet 10a into the paddy field with a simple structure.

  The water inlet position changing means 11 is provided with a support 15 at the upper part in the casing body 9, a drive motor 16 is attached to the support 15, and an output shaft 18 is moved rearward to the drive motor 16 via a speed reduction case 17. The output pulley 19 is attached to the output shaft 18 while being attached to the outer peripheral surface of the cylindrical base end portion 10b so as to be fitted with the driven pulley 20, and the transmission wire 21 is connected between the pulleys 19 and 20. It is configured by winding.

  The left and right stop switches 22 and 23 such as limit switches are arranged in the vicinity of the upper left and right sides of the transmission wire 21, respectively, while the left and right switch action pieces 24 and 23 are disposed in the left and right middle portions of the transmission wire 21, respectively. 25 is installed.

  The control means 12 connects the left / right stop switches 22 and 23 described above to the input side and a water level detection means 13 described later, and connects the drive motor 16 described above to the output side.

  In this way, the water level in the paddy field 2 is always detected by the water level detection means 13 described later, and when the detection result is lower than the preset water level, the control means 12 sends a drive signal to the drive motor 16. Then, the drive motor 16 is driven, and the output shaft 18 is rotated forward via the deceleration case 17.

  Then, the positive rotational force is transmitted from the output shaft 18 to the output pulley 19 → the transmission wire 21 → the driven pulley 20 → the cylindrical base end portion 10b → the cylindrical intermediate portion 10c → the cylindrical tip portion 10e, and the cylindrical tip portion 10e is repositioned to the water introduction position (b).

  At this time, when the cylindrical tip 10e is rotated to the water guiding position (b), the left switch action piece 24 attached to the transmission wire 21 acts on the left stop switch 22 to turn on the left stop switch 22. The stop signal of the left stop switch 22 is input to the control means 12, and the drive of the drive motor 16 is stopped.

  As a result, the water inlet 10a of the cylindrical tip 10e is arranged at a position lower than the water surface in the open water channel 1, and the water W in the open water channel 1 passes through the communication pipe 14 from the water guide 3 and the water inlet port. Water is introduced into paddy field 2 from 10a.

  Further, when water is introduced into the paddy field 2 and the water level in the paddy field 2 rises and the water level detection means 13 detects a preset water level, the detection result is input to the control means 12, and the control means 12 outputs a drive signal to the drive motor 16 to drive the drive motor 16 and reversely rotate the output shaft 18 via the deceleration case 17.

  Then, the reverse rotational force is transmitted from the output shaft 18 to the output pulley 19 → the transmission wire 21 → the driven pulley 20 → the cylindrical base end portion 10b → the cylindrical intermediate portion 10c → the cylindrical tip portion 10e, and the cylindrical tip portion 10e is repositioned to the water stop position (I).

  At this time, when the cylindrical tip 10e is rotated to the water stop position (A), the right switch action piece 25 attached to the transmission wire 21 acts on the right stop switch 23, and the right stop switch 23 is turned on. Then, the stop signal of the right stop switch 23 is input to the control means 12, and the drive of the drive motor 16 is stopped.

  As a result, the water inlet 10a of the cylindrical tip 10e is arranged at a position higher than the water surface in the open water channel 1, and the water W in the open water channel 1 passes through the communication pipe 14 from the water guide 3 and the cylindrical base. Although guided to the end portion 10b, the water is stopped in the cylindrical midway portion 10c or the cylindrical tip portion 10e, and water is not introduced into the paddy field 2 from the water inlet port portion 10a.

  The water level detection means 13 detects the water level in the paddy field 2 and can electrically output the detection result to the control means 12. 29 is a connection cord.

  In the present embodiment, a battery 27 is disposed in the upper part of the casing body 9, and the battery 27 is a control means 12, a water level detection means 13, a drive motor 16, Used as a power source for the left and right stop switches 22,23.

  In addition, a solar cell 28 attached to the ceiling portion 9a of the casing body 9 is connected to the battery 27 so that the electricity collected by the solar cell 28 can be stored in the battery 27.

  4 and 5 show an automatic water supply apparatus A as another embodiment, and the automatic water supply apparatus A has the same basic structure as the automatic water supply apparatus A described above.

  That is, as shown in FIGS. 4 and 5, the automatic water supply device A is positioned above the casing body 30, the water inlet 31 provided at the lower end of the casing 30, and the water inlet 31. The communication port portion 32 provided at the lower part of the casing body 30, the valve body 33 that blocks and communicates with the communication port portion 32 and the water conveyance port portion 31, and the valve body 33 with the blocking position (c) and the communication position ( D) a valve body position changing means 34 for changing the position, a control means 12 for controlling the valve body position changing means 34, and a water level detecting means 13 for detecting the water level in the paddy field 2 connected to the control means 12; Are provided integrally.

  The casing body 30 is formed in a cylindrical box shape that extends in the vertical direction and is open at the lower end.

  Further, the water inlet 31 is formed by opening circular holes in front, rear, left and right sides of the lower end of the peripheral wall 30a forming the casing body 30, respectively.

  The communication port portion 32 is formed by opening a circular hole in the lower part of the peripheral wall rear portion 30b of the casing body 30, and the front end edge portion of the connection pipe 35 extending in the front-rear direction at the peripheral portion of the communication port portion 32. The connecting pipe 35 is integrally connected, and the inner peripheral surface of the connecting pipe 35 is fitted to the outer peripheral face of the communicating pipe 14 protruding from the water guide portion 3 so that the connecting pipe 35 can be connected in a detachable manner.

  The valve body 33 is interlocked and connected to the valve body position changing means 34, and a peripheral edge portion 33a is slidably brought into contact with the lower part of the inner peripheral surface of the casing body 30 so that the valve body position changing means 34 can slide down. It is also possible to dispose the water guide port 31 and the communication port portion 32 at a shut-off position (c). It can also be placed in the communication position (d) where 32 can communicate.

  The valve body position changing means 34 is provided with a support body 15 in the upper part of the casing body 30, a drive motor 16 is attached to the support body 15, and the output shaft 18 is directed downward through the speed reduction case 17 to the drive motor 16. The upper end portion of the male screw rod 36 extending in the vertical direction is interlocked and connected to the output shaft 18, while the lower end portion of the male screw rod 36 is connected to the female screw portion 38 formed at the upper end portion of the valve body support frame 37. Is screwed. Reference numeral 39 denotes a rod insertion hole formed in the support 15.

  In this way, the water level in the paddy field 2 is constantly detected by the water level detection means 13, and when the detection result is lower than the preset water level, the control means 12 outputs a drive signal to the drive motor 16. Then, the drive motor 16 is driven, and the output shaft 18 is rotated forward via the deceleration case 17.

  Then, the positive rotational force is transmitted from the output shaft 18 to the male screw rod 36 → the female screw portion 38 → the valve body support frame 37, and the valve body 33 is moved to the communication position (d) via the valve body support frame 37. The position is changed.

  At this time, when the valve body 33 is slid up to the communication position (d), the upper switch action piece (not shown) attached to the valve body support frame 37 is attached to the peripheral wall 30a of the casing body 30. Acting on a stop switch (not shown), the same ascending / stopping switch is turned on, a stop signal of the same ascending / stopping switch is input to the control means 12, and the drive of the drive motor 16 is stopped.

  As a result, the valve body 33 is disposed at a position higher than the communication port portion 32, and the water W in the open water channel 1 is communicated from the water guide portion 3 to the communication pipe 14, the connection pipe 35, the communication port portion 32, and the casing body 30. The water is introduced into the paddy field 2 through the water inlet 31.

  Further, when water is introduced into the paddy field 2 and the water level in the paddy field 2 rises and the water level detection means 13 detects a preset water level, the detection result is input to the control means 12, and the control means 12 outputs a drive signal to the drive motor 16 to drive the drive motor 16 and reversely rotate the output shaft 18 via the deceleration case 17.

  Then, the reverse rotational force is transmitted from the output shaft 18 to the male screw rod 36 → the female screw portion 38 → the valve body support frame 37, and the valve body 33 is moved to the blocking position (c) via the valve body support frame 37. The position is changed.

  At this time, when the valve body 33 is slid down to the shut-off position (c), the lower switch action piece (not shown) attached to the valve body support frame 37 is lowered to the peripheral wall 30a of the casing body 30. Acting on a stop switch (not shown), the right stop switch 23 is turned ON, and a stop signal of the right stop switch 23 is input to the control means 12, and the drive of the drive motor 16 is stopped.

  As a result, the valve body 33 is disposed between the water inlet 31 and the communication port 32, and the water W in the open water channel 1 is communicated from the water guide 3 to the communication pipe 14 → the connection pipe 35 → the communication port 32. → Although guided to the lower part of the casing body 30, the water is stopped by the valve body 33 and the water is not introduced into the paddy field 2 from the water inlet 10 a.

The perspective explanatory view which shows the use condition of the automatic water supply apparatus which concerns on this invention. Sectional side explanatory drawing of the automatic water supply apparatus. Cross-sectional front explanatory drawing of the automatic water supply apparatus. Cross-sectional side explanatory drawing of the automatic water supply apparatus as other embodiment. Cross-sectional front explanatory drawing of the automatic water supply apparatus.

Explanation of symbols

A Automatic water supply device 1 Open water channel 2 Paddy field 3 Water guide 9 Casing body
10 Water conduit
11 Means for changing position of water inlet
12 Control means
13 Water level detection means

Claims (2)

  A water conduit connected to the open water channel, a water inlet position changing means for changing the position of the water inlet opening opened at the tip of the water conduit, and a control means for controlling the water inlet position changing means, An automatic water supply apparatus characterized in that a water level detecting means for detecting the water level in the paddy field is provided integrally with the control means, and the water conduit is detachably connected to an open water channel. .   The water conduit has a base end portion connected to the open water channel, and a distal end portion of the water conduit tube is disposed so as to intersect the axis of the base end portion, and is rotatable about the axis of the base end portion. Nonetheless, a water stop position in which the water inlet port opened at the tip is disposed above the water surface in the open water channel, and a water guide position in which the water inlet port is disposed below the water surface in the open water channel. 2. The position can be freely changed, and the control means automatically changes the position of the water inlet through the water pipe position changing means based on the detection result of the water level detecting means. The automatic water supply apparatus described.

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