JP3115884U - Water stop device for irrigation canals - Google Patents

Abstract

There is provided a water stop device capable of adjusting the inflow of water from a irrigation channel into a paddy field with an automatic and simple configuration without requiring an administrator to go to the paddy field.
In a irrigation channel C beside paddy field B, frame 1 is fixed opposite to the downstream position near water channel D that is drawn into paddy field B, and both side edges of water stop plate 4 are slid onto frame 1. A constant load spring 8 is fixed to the upper part of the frame 1, and the free end of the constant load spring 8 is fixed to the upper part of the water stop plate 4. The first tank 9 and the second tank 12 for fixing and storing water are provided, the first pump 10 and the second pump 13 are connected to the tanks 9 and 12, and the timer 11 for operating the first pump 10 is provided. A water level sensor 14 for operating the second pump 13 is provided in the paddy field B, the second tank 12 is placed on the upper edge of the water stop plate 4, and the first tank 9 is placed near the second tank 12 and stopped. Water device A was formed.
[Selection] Figure 1

Description

  This device is used when water is drawn into a paddy field or the like from an agricultural water channel (hereinafter simply referred to as a “water path”) flowing beside a paddy field or other cultivation pond (hereinafter simply referred to as “paddy field”). The present invention relates to a water stop device for a water canal that blocks the water flow in the water canal to raise the water level, and flows water to a water cannula provided at the top of the side wall of the water canal to draw water into a paddy field or the like. .

  Conventionally, as shown in FIG. 10, irrigation canals C are provided vertically and horizontally in the paddy field where rice 22 is cultivated, and the necessary amount of water is drawn into each paddy field B through these irrigation channels C. ing. When water is drawn into the plurality of paddy fields B from the irrigation channel C as described above, the drawing water channel D is provided on the upper part of the side wall of the irrigation channel C, and the water flow in the irrigation channel C near the drawing water channel D is blocked to prevent the water level. The water is drawn into the paddy field B through the drawing water channel D (indicated by a thick black arrow in FIG. 10). And normally, the water level of the irrigation channel C is in a position that does not reach the height of the lead-in channel D.

  The operation of damming the water flow in the irrigation channel C and drawing water into the paddy field B is specifically performed by the manager of the paddy field B (hereinafter simply referred to as “manager”) from the home. This is done by a primitive method such as going to the end and inserting a rectangular wooden plate 21 into the irrigation channel C and fixing it. And after drawing water in the paddy field B sufficiently, the said board 21 is removed and the water flow of the water channel C is returned.

However, in order to perform such a simple operation, it is extremely troublesome to go to the rice fields that are away from home every morning. However, neglecting this work every few days will adversely affect the growth of the rice and make it impossible to harvest the fully grown rice. In midsummer heat, paddy fields dry out, creating a serious crisis in rice growth, and some of them die.
Furthermore, in order to fix the plate body to the irrigation channel with water flow, it is necessary to firmly fix the front and rear sides of the plate body by inserting a support such as a sandbag into the irrigation channel. And it takes 40-50 minutes to draw water into the paddy field, and the manager has to wait for it on the spot. Moreover, it takes time and effort to remove these supports to remove the plate once fixed.

  It is also a hard work with patience to go to a paddy field away from home to find out the amount of water in the paddy field when the midsummer sun shines.

  Therefore, the present invention provides a water stop device that can adjust the inflow of water from the irrigation channel into the paddy field with an automatic and simple configuration without having to go to the paddy field. To do.

  The invention of claim 1 is an irrigation channel in which a water intake channel to a cultivation pond or a paddy field is provided at the upper part of the side wall, and the left and right frames are opposed to both side walls in the downstream position near the water channel. The left and right frames are slidably supported by these left and right frames, and the right and left frames are slidably supported by the left and right frames. It formed so that it might be located in the lower part or upper part of the space formed, and fixed load spring was fixed to the upper part of the said right-and-left frame, respectively, and the free end of each said constant load spring was fixed to the upper part of the said water stop board.

  A first tank and a second tank for storing water are provided, the first pump intake port is connected to the first tank, the second pump intake port is connected to the second tank, and the first drain hose of the first pump is connected. Connect the drainage port to the second tank, connect the drainage port of the second drainage hose of the second pump to the first tank, and provide a timer for operating the first pump. A water level sensor for operating two pumps was provided, the second tank was placed on the upper edge of the water stop plate, and the first tank was placed near the second tank to form a water stop device.

  When the preset time is reached, the first pump is operated in accordance with the instruction from the timer to move the water stored in the first tank into the second tank, and the second tank is filled with water. And the second tank lowers the water stop plate against the force of the constant load spring by its own weight to dam the water flow in the irrigation channel, dams the water flow and raises the water level to raise the water level. On the other hand, water was drawn into the cultivation pond or paddy field, and when the second tank was filled with water, the movement of the first pump was stopped by sensor detection or a timer.

  When the water level of the cultivation pond or paddy field rises, the water level sensor detects this, operates the second pump by the water level sensor, moves the water in the second tank into the first tank, The movement of the water reduces the weight of the second tank, and the water stop plate is pulled upward by the force of each constant load spring to restore the water flow in the irrigation channel, while water is contained in the first tank. When it is satisfied, the water stop device for the irrigation channel is configured to stop the movement of the second pump by sensor detection or a timer.

  The invention of claim 2 is such that when the water level of the cultivation pond or paddy field is high, the first pump is not operated by the instruction of the water level sensor even if the operation of the first pump is instructed by the timer. It was set as the water stop apparatus of the waterway of claim | item 1. In addition, in the invention of claim 3, instead of the timer for operating the first pump, a second water level sensor for detecting the low water level of the cultivation pond or paddy field and operating the first pump is provided in the cultivation pond or paddy field. It was set as the water stop apparatus of the waterway of the said Claim 1 provided. Furthermore, the invention of claim 4 is the water stop device for a water channel according to any one of claims 1, 2, or 3, wherein the second tank is provided integrally with the water stop plate.

  According to the invention of claim 5, the left and right frames of the water stop device are erected, horizontal frames are respectively provided at substantially middle and lower positions of the left and right frames, and the water stop device is provided in the water channel. When attaching, each horizontal frame of the left and right frames is brought into contact with each side wall of the irrigation channel, and a turnbuckle is passed between each horizontal frame in contact with each side wall of the irrigation channel. 5. The water stop device for a water channel according to claim 1, wherein the horizontal frame is pressed against each side wall of the water channel to attach the frame to the water channel.

  Further, according to the sixth aspect of the present invention, the left and right frames fixed to the side walls of the water channel are channel-types with a fixed length, and the concave portions of these frames are provided so as to face each other. In addition, a plurality of rollers or casters are rotatably provided in a direction along both side edges of the water stop plate or in a direction orthogonal to the direction along both side edges of the water stop plate. The water stop device for a water channel according to any one of claims 1, 2, 3, 4, and 5, wherein both side edges of the water stop plate are slidably fitted.

  Further, in the invention of claim 7, instead of the first pump and the second pump, one pump that can rotate forward and backward is provided, and one intake / drain port of the pump that can rotate forward and reverse is provided as the first pump. Connect to the tank, connect the other intake / drain port of the pump that can rotate forward and reverse to the second tank, and provide a timer for rotating the pump forward, and connect the pump to the cultivation pond or paddy field. A water level sensor for reverse rotation is provided.

  When the preset time is reached, the pump is rotated forward in accordance with an instruction from the timer to move water from the first tank into the second tank, and when the second tank is filled with water, a sensor When the water level of the cultivation pond or paddy field rises, the water level sensor detects this, and the water level sensor senses this, and the water level sensor causes the pump to rotate in reverse. 2. The structure according to claim 1, wherein the water in the two tanks is moved into the first tank, and when the first tank is filled with water, the reverse rotation of the pump is stopped by sensor detection or a timer. It was set as the water stop apparatus of the waterway in any one of 4,5,6.

  The invention of claim 8 is provided with a second water level sensor provided in the cultivation pond or paddy field for sensing the low water level of the cultivation pond or paddy field and operating the pump in a normal rotation instead of the timer for operating the pump. A water stop device for a water channel according to claim 7.

  The invention of claim 9 is provided with a single tank instead of the first tank and the second tank, and a single pump capable of forward and reverse rotation instead of the first pump and the second pump, One intake / drain port of a pump that can freely rotate in the forward and reverse directions is connected to the tank, the other intake / drain port of the pump is provided in the irrigation channel, a timer for operating the pump in a forward rotation is provided, and The water level sensor which reversely rotates the said pump was provided in the cultivation pond or the paddy field, and the said tank was provided in the said water stop board.

  When the preset time is reached, the pump is rotated forward according to the instruction of the timer to take water from the water channel into the tank, and when the tank is filled with water, the pump is detected by a sensor or a timer. When the water level of the cultivation pond or paddy field rises, the water level sensor detects this, and the water level sensor causes the pump to rotate in reverse, returning the water in the tank to the irrigation channel. On the other hand, when the water is filled in the tank, the reverse rotation operation of the pump is stopped by sensor detection or a timer. A water stop device was used.

  The invention of claim 10 is provided with a second water level sensor in the cultivation pond or paddy field that detects the low water level of the cultivation pond or paddy field and operates the pump in a normal rotation instead of the timer that operates the pump. A water stop device for a water channel according to claim 9.

  If the water stop device of the device of claim 1 is installed in the irrigation channel, the irrigation channel can be opened and closed automatically by the water stop plate of the water stop device every day at a fixed time. You can adjust the amount of water in paddy fields and cultivation ponds without going to paddy fields. In addition, since this apparatus has a simple configuration and is inexpensive, it is easy to install the apparatus. As a result, even if it is a period of intense heat in midsummer, a paddy field or a cultivation pond far away from home, etc. It is possible to adjust and manage the amount of water in the water and contribute greatly to the steady growth of rice cultivation and other plant cultivation.

  According to the invention of claim 2, when the water level of the cultivation pond or paddy field is high, even if the operation of the first pump is instructed by the timer at the set time, the first level is instructed by the instruction of the water level sensor. Since the pump is not operated, the water supply operation due to the unnecessary operation of the first pump is not performed, and the water stop device is highly reliable. According to the invention of claim 3, since the second water level sensor for sensing the low water level of the cultivation pond or paddy field is provided in the cultivation pond or paddy field instead of the timer for operating the first pump, According to the actual water level, water can be drawn in, and a minimum water level can always be secured. According to the fourth aspect of the present invention, since the second tank is provided integrally with the water stop plate, a water stop device with a simpler configuration that is not bulky can be used. According to the fifth aspect of the present invention, since the water stop device is attached to the irrigation channel using the turnbuckle, it can be easily and surely attached by a short member.

  Furthermore, according to the invention of claim 6, the left and right frames fixed to the side walls of the water channel are channel-types of a fixed length, and the recesses of these frames are provided facing each other, A plurality of rollers or casters are rotatably provided on both side edges in a direction along both side edges of the water stop plate or in a direction orthogonal to the side edges on the water stop plate. Since the both side edges of the water stop plate are slidably fitted to each other, the resistance when the water stop plate and the empty tank are pulled up through the recesses of each frame is reduced by the constant load spring, and smooth. To the top of each frame. At this time, the rollers or casters oriented along both side edges of the water stop plate smoothly move the water stop plates vertically in the left and right frames, and the rollers or casters oriented in the perpendicular direction are pressured by water flow. Smoothly moves up and down even if it gets on the waterstop. As a result, the water flow in the irrigation channel can be dammed or restored reliably and easily.

  According to the inventions of claims 7 and 8, in place of the first pump and the second pump, one pump that can rotate forward and reverse is provided, and two intake / drain ports of the pump are connected to the first tank. According to the inventions of claims 9 and 10, respectively, a single tank is provided instead of the first tank and the second tank, and the first pump and the second pump are replaced. In addition, one pump that can rotate forward and reverse is provided, one intake / drain port of this pump is connected to the tank, and the other intake / drain port is provided in the water channel. This water stop device can be easily installed regardless of location.

  The irrigation channel to the cultivation pond or paddy field is an irrigation channel provided in the upper part of the side wall, and the left and right frames are fixed upright opposite to each other on both side walls in the downstream position near the irrigation channel of the irrigation channel. The left and right frames are slidably supported on both side edges of a water stop plate made of a rectangular flat plate from above, and the lower part of the space formed by the left and right frames facing each other or The constant load springs were fixed to the upper portions of the left and right frames, and the free ends of the constant load springs were fixed to the upper portion of the water stop plate.

  A first tank and a second tank for storing water are provided, the first pump intake port is connected to the first tank, the second pump intake port is connected to the second tank, and the first drain hose of the first pump is connected. Connect the drainage port to the second tank, connect the drainage port of the second drainage hose of the second pump to the first tank, and provide a timer for operating the first pump. A water level sensor for operating two pumps was provided, the second tank was placed on the upper edge of the water stop plate, and the first tank was placed near the second tank to form a water stop device.

  When the preset time is reached, the first pump is operated in accordance with the instruction from the timer to move the water stored in the first tank into the second tank, and the second tank is filled with water. And the second tank lowers the water stop plate against the force of the constant load spring by its own weight to dam the water flow in the irrigation channel, dams the water flow and raises the water level to raise the water level. On the other hand, water was drawn into the cultivation pond or paddy field, and when the second tank was filled with water, the movement of the first pump was stopped by sensor detection or a timer.

  When the water level of the cultivation pond or paddy field rises, the water level sensor detects this, operates the second pump by the water level sensor, moves the water in the second tank into the first tank, The movement of the water reduces the weight of the second tank, and the water stop plate is pulled upward by the force of each constant load spring to restore the water flow in the irrigation channel, while water is contained in the first tank. When the condition is satisfied, the movement of the second pump is stopped by sensor detection or a timer.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a water stop device A according to an embodiment of the present invention. As shown in FIGS. 2 and 3, the water stop device A includes two metal channel-type frames 1 each having a length about twice as long as the water depth of a water channel C to be attached (see FIG. 1). And as shown in FIG. 3, the recessed part 1a is made to oppose each other, and it establishes with the space | interval of the width | variety of the water channel C spaced apart. A horizontally long frame 2 made of a narrow plate is attached to the outside of the substantially middle portion of each of the left and right frames 1 that are erected so as to face each other, and from the narrow plate to the lower part of each of the left and right frames 1. A horizontal short frame 3 is attached. Through holes 2a and 3a are formed in front and rear end portions of the horizontal long frame 2 and the horizontal short frame 3, respectively.

  Formed by the left and right frames 1 erected so as to be opposed to each other, with both side edges of a wooden rectangular flat plate fitted and dropped into the recesses 1a of the respective frames 1 standing opposite to each other. A water blocking plate 4 is formed to block the lower half of the formed space, that is, the portion of the water channel C through which water flows. As shown in FIG. 4, the water stop plate 4 is provided with two casters 5 and two rollers 6 alternately on both side edges, and the caster 5 is attached to the side wall of the water stop plate 4 at the bottom. The roller 6 is provided above the caster 5 by changing the position of the caster 5 by 90 degrees, and the position of the roller 6 is changed by 90 degrees from the roller 6 in the same manner as described above. A caster 5 and a roller 6 are provided.

  The constant load springs 8 are fixed to the upper portions of the left and right frames 1, respectively, and the free ends 8 a of the constant load springs 8 are extended downward through the recesses 1 a of the frames 1 to A wood screw or the like is screwed onto the top of 4 and fixed. These constant load springs 8 have a force for pulling up the water stop plate 4 to the upper portions of the left and right frames 1 with a constant force regardless of the position of the free end 8a of the spring.

  Next, a tank for storing water will be described. Here, a so-called poly tank (hereinafter simply referred to as “tank”) containing kerosene and water, which is commercially available, is used as the first tank 9 and the second tank 12 (FIG. 1). reference). The intake port 10 a of the first pump 10 is inserted into one of the two openings provided in advance in the first tank 9, and the drain port 10 c of the first drain hose 10 b of the first pump 10 is connected to the upper part of the second tank 12. To the other opening. Similarly, the intake port 13 a of the second pump 13 is inserted into one of the two openings provided in advance in the second tank 12, and the drain port 13 c of the second drain hose 13 b of the second pump 13 is connected to the first tank 10. Connected to the other opening at the top.

  These drain outlets 10c and 13c are in contact with the water when the first tank 9 or the second tank 12 is filled up to the vicinity where the drain outlets 10c and 13c are provided. Water sensing sensors are provided (not shown). The operations of the pumps 10 and 13 are stopped by the action of these water detection sensors.

  Further, a timer 11 using a dry battery 7 as a power source for instructing the first pump 10 of the first tank 9 to be switched on is provided, and a water level sensor 14 is provided in the paddy field B. As shown in FIG. 1, in the water level sensor 14, a cylindrical mounting bracket 14e is covered on the upper portion of a rod body 14b, and switches 14c and 14d are provided via the mounting bracket 14e. By tightening the butterfly bolt 14f provided on the side surface, the rod 14b can be moved up and down to be fixed. In addition, when the rod 14b is inserted into the center and a styrofoam float 14a that can move up and down along the rod 14b is provided, and the water level in the paddy field B rises from low to high, the float 14a By raising, the switch levers of the switches 14c and 14d are pushed, and these switches are turned on.

  The first pump 10 is actuated by an instruction from the timer 11, the water stop plate 4 is lowered, water is drawn into the paddy field B, the water level in the paddy field B is raised, and the switch 14c is turned on. In the state where the switch 14c is turned on, for example, at the preset time in the morning of the next day, even if the timer 11 instructs the first pump 10 to switch on, Since there is a sufficient water level, the first pump 10 is not activated. Further, when the switch 14d is turned on, an instruction to operate the second pump 13 is given.

  Further, when the switch 14d is turned on, an instruction is given to operate the second pump 13. At this time, if the first tank 9 is already filled with water, as described above. Since the operation of the second pump 13 is stopped by the water detection sensor, the second pump 13 does not operate.

  And the 2nd tank 12 is mounted in the elongate upper end edge of the water stop board 4, and the 1st tank 9 is mounted in the vicinity of this tank 12, and the water stop apparatus A is formed.

Next, the water stop device A is actually attached to the water channel C.
As shown in FIG. 9, this water stop apparatus A is attached to the water channel C in which the drawing-in water channel D to the paddy field B is provided in the upper part of the side wall. The left and right frames 1 of the water stop device A are erected from the bottom surface with the respective recesses 1a facing each other on both side walls in the downstream position near the drawing water channel D of the water channel C (see FIG. 1).

  In attaching the left and right frames 1 in the irrigation channel C, the horizontal long frames 2 provided at substantially the middle portions of the left and right frames 1 are brought into contact with the opposite inner walls on both sides of the irrigation channel C, As shown in FIG. 8, each one end part of the turnbuckle 15 is inserted in the through-holes 2a before and after the horizontally long frames 2 facing each other. Near each one end of each turnbuckle 15, a nut 15 a is screwed in a state where each end is slightly projected in advance.

  Thereafter, the length adjusting portion 15b at the center of each turnbuckle 15 is turned to extend each turnbuckle 15, and each horizontal length frame 2 is moved to the inside of the water channel C by a nut 15a at each end of each turnbuckle 15. Each turnbuckle 15 is fixed to the water channel C by pressing against the wall. Similarly, the horizontal short frame 3 of each frame 1 is brought into contact with the opposed inner walls of the lower portion of the water channel C and fixed using the turnbuckle 15. Thus, the left and right frames 1 of the water stop device A are attached to the water channel C.

  And the both-sides edge of the water stop plate 4 is inserted and provided in each recessed part 1a of each left and right flame | frame 1 which stood up facing the recessed part 1a. The second tank 12 is placed and fixed to the elongated upper end edge of the water stop plate 4 in an empty state. At this time, the water stop plate 4 is in the position of the upper half of each frame 1 by the action of the constant load spring 8 connected to each frame 1 and the water stop plate 4. Moreover, as shown in FIG. 5, the board 17 is passed over the opening part of the water channel C near this tank 12, and the 1st tank 9 is mounted in the state filled with water on this. Furthermore, as shown in FIG. 1, the lower part of the rod 14b of the water level sensor 14 is inserted into the soil in the paddy field B, and the water level sensor 14 is attached. In this way, the water stop device A is attached to the water channel C.

  In the morning, when the time set by the timer 11 is reached, if the switch 14c of the water level sensor 14 is not turned on, the switch of the first pump 10 of the first tank 9 is turned on, and the water in the first tank 9 is turned on. Is moved into the second tank 12. At this time, as the water in the first tank 9 is transferred into the second tank 12, the water stop plate 4 descends against the force of the constant load spring 8 due to the increase in the weight of the second tank 12. The bottom of C is reached and the water flow in the canal C is blocked. Due to the blocking of the water flow, the water level in the irrigation canal C at this location rises, eventually reaching the position of the draw-in irrigation channel D provided at the upper part of the side wall of the irrigation canal C, and as shown in FIG. Water flows in the drawing water channel D and flows into the paddy field B. At this time, when the second tank 12 is filled with water, a water sensor provided in the drain port 10c senses the water and stops the operation of the first pump 10.

  Thereafter, when a certain amount of water flows into the paddy field B and the water level in the paddy field B reaches a certain level, the switch 14d of the water level sensor 14 is turned on, and the second pump 13 of the second tank 12 is turned on. Is activated, the water in the second tank 12 is transferred into the first tank 9. In this way, when the water in the second tank 12 is transferred, the lightweight second tank 12 and the water stop plate 4 are pulled up by the action of the constant load spring 8 provided in each frame 1, and the water channel Open C to restore water flow. Further, when the first tank 9 is filled with water, a water detection sensor provided at the drain port 13c detects the water and stops the operation of the second pump 13. Further, when the switch 14d of the water level sensor 14 is turned on, the switch 14c is turned on at the same time, thereby giving an instruction not to operate the first pump 10 and preventing the first pump 10 from malfunctioning.

  At this time, since a plurality of casters 5 and rollers 6 are provided on both side surfaces of the water stop plate 4, the constant load spring 8 passes through the recess 1 a of each frame 1 and the empty water stop plate 4 and the empty water stop plate 4. The resistance when the tank 12 is pulled up is reduced, and the tank 12 is smoothly pulled up to the upper part of each frame 1. At this time, the casters 5 smoothly move the water stop plates 4 in the left and right frames 1 up and down, and the rollers 6 smoothly move up and down even when pressure due to the water flow is applied to the water stop plates 4.

  Furthermore, once the water stop device A is attached to the irrigation channel C, it is often maintained in the attached state for a long period of time, but during that time, it is exposed to wind and rain, and it is irrevocably illuminated by sunlight. . As a result, each part of the water stop device A is damaged, causing a failure. Furthermore, if the water stop device A is exposed on the water channel C, it may be mischievous or broken.

  In order to prevent the occurrence of such a situation, it is safe to cover the water stop device A with a cover 18 made of a box having no bottom as shown in FIGS. The cover 18 has a lid 18a on the top surface, and the lid 18a can be opened and closed by a hinge 18b. Therefore, the state of the water stop device A can be viewed at any time. Usually, it is closed with a padlock 18c.

  In the above embodiment, the timer 11 is used to start the first pump 10 when the water in the first tank 9 of the water stop device A is transferred to the second tank 12, and the amount of water in the paddy field B is constant. When the water level sensor 14 is reached, the water level sensor 14 is used for starting the second pump 13 when the water in the second tank 12 is transferred to the first tank 9. For starting both the first pump 10 and the second pump 13, Of course, the timer 11 may be used. Alternatively, sensors for detecting the upper and lower water levels may be provided, and the pumps 10 and 13 may be operated by these sensors.

  As such a water level sensor, for example, two water level sensors 14 are prepared, and one is a first water level that detects only the high water level of the paddy field B by providing only one switch of the mounting bracket of the water level sensor 14. The other one is a second water level sensor that detects only the low water level of paddy field B by providing only one switch of the mounting bracket by fixing the mounting bracket 14e by lowering the butterfly bolt 14f and lowering it to the lower part. (Not shown).

  Thereby, when the water level in the paddy field B is low and the switch of the second water level sensor is turned on, the first pump 10 of the first tank 9 is activated, and the water moves into the second tank 12. Thus, the water stop plate 4 is lowered and water is drawn into the paddy field B. Thereafter, when the water level in the paddy field B rises and the switch of the first water level sensor is turned on, the second pump 13 of the second tank 12 is activated, and the water moves into the first tank 9 and stops. The water plate 4 is raised, the drawing of water into the paddy field B is stopped, and the water flow in the irrigation channel C is returned.

  Further, in place of the second tank 12, similarly to the second tank 12, the water stop plate 4 is improved so that water can be stored therein, and the second pump is provided in the water stop plate 4. 13 intake ports 13a and the drainage port 10c of the first drainage hose 10b can also be connected (not shown). In this case, the configuration is simpler.

  Furthermore, the water stop apparatus E of another Example can also be used. As shown in FIG. 9, the water stop device E is replaced with the first tank 9 and the second tank 12, and a single tank 19 is prepared, and the first pump 10 and the second pump 13 are replaced. A single pump 20 that can rotate forward and backward is prepared. In this case, one intake / drain port 20 a of the pump 20 is connected to one of the openings of the tank 19, and the other intake / drain hose 20 b of the pump 20 is disposed in the water channel C. Then, a timer 11 for operating the pump 20 in a normal rotation is provided, and a water level sensor 14 for operating the pump 20 in a reverse rotation is provided in the paddy field B.

  When the tank 19 is placed on the upper edge of the water stop plate 4 and a preset time is reached, the pump 19 is rotated forward in accordance with an instruction from the timer 11 to supply water from the water channel C into the tank 19. When the tank 19 is filled with water, the tank 19 lowers the water stop plate 4 against the force of the constant load spring 8 due to its own weight and stops the water flow in the water channel C. By blocking this water flow, the water level is raised and water is drawn into the paddy field B through the drawing water channel D. When the tank 19 is filled with water, the movement of the forward rotation operation of the pump 19 is stopped by a water detection sensor provided near the intake / drain port 20a.

  When the water level of the paddy field B rises, the water level sensor 14 detects this, and the water level sensor 14 reversely operates the pump 19 to return the water in the tank 19 to the water channel B. The weight of the tank 19 is reduced and the water stop plate 4 is pulled upward by the force of each constant load spring 8 to restore the water flow in the water channel C.

  In the other embodiment, a single tank 19 is prepared in place of the first tank 9 and the second tank 12, and the first pump 10 and the second pump 13 are replaced by a forward and reverse rotatable one. The two pumps 20 are prepared and used. However, as in the above-described embodiment, the first tank 9 and the second tank 12 are used, and only the pump is replaced with the first pump 10 and the second pump 13. A single pump 20 that can rotate forward and backward may be used.

  In addition, in the said Example, in order to attach the water stop apparatus A to the water channel C, the turntable 15 is provided and fixed to the horizontal long frame 2 and the horizontal short frame 3 which were provided in each right and left frame 1 of the water stop apparatus A. However, the means for attaching the water stop device A to the water channel C is not limited to this, and an appropriate method may be used. For example, a plurality of square members or the like may be passed and fixed to the opening of the water channel C, and the water stop device A may be fixed to the opening (not shown). In FIG. 1, the first tank 9 is provided on the side of the irrigation channel C for convenience of explanation. However, in actual use, as shown in FIG. In order to achieve this, both the first tank 9 and the second tank 12 are arranged side by side on the water channel C.

  Moreover, although the some caster 5 and the roller 6 are provided in the both sides | surfaces of the water stop board 4, and the cover 18 covered on the water stop apparatus A is used, these structures are not the essential requirements of this device. Furthermore, although the water stop plate 4 is made of wood, the water stop plate 4 is not limited to wood and may be made of metal or plastic. In addition, as the tanks 9 and 12, so-called plastic tanks that are commercially available are used, but the tanks 9 and 12 are not limited to this, and water is stored inside and the shape is stable. Anything can be used.

  Further, although the paddy field is used as a place to draw water by the water stop device A, the water is not limited to the paddy field, but may be a cultivation pond such as a pond in which lotus is cultivated. Further, the configuration of the water level sensor 14 and other water level sensors is not limited to the above description. Further, although each frame 1 is a channel type, the present invention is not limited thereto, and a frame having an appropriate shape such as an L-shaped section or an H-shaped section may be used.

  Further, in the above embodiment, the operation stop of the first pump 10 is detected by the water sensor provided in the drain port 10c of the second tank 12, and the operation stop of the second pump 13 is detected by the drain port of the first tank 9. However, the operation is not limited to this, and the operation can be stopped by a motion detection sensor of the water stop plate 4 with respect to the frame 1 or a timer. Moreover, since the timer 11, each pump 10,13, each sensor 14, etc. are operated with the dry cell 7, this water stop apparatus A and E can be used even in the place without a commercial power source.

It is explanatory drawing of the state which act | operates the water stop apparatus provided in the water channel beside the paddy field of the Example of this invention, and has drawn water in the paddy field. It is a front view of the state which provided the water stop board between each frame on which the water stop apparatus of the Example of this invention stood upright. It is a side view of the state which provided the water stop board between each frame on which the water stop apparatus of the Example of this invention stood upright. It is a front view of the water stop board of the water stop apparatus of the Example of this device. It is a top view of the state which attached the water stop apparatus of the Example of this invention on the water channel. It is a front view of the cover of the water stop apparatus of the Example of this device. It is the side view of the state which attached the water stop apparatus of the Example of this invention on the waterway, and also covered the cover from it. It is an expanded partial sectional view of the state which has attached the water stop apparatus of the Example of this invention on the waterway by the turnbuckle. It is explanatory drawing of the state which operates the water stop apparatus provided in the water channel beside the paddy field of the other Example of this invention, and has drawn water in the paddy field. It is a perspective view which shows the state in which the plate body was inserted in the conventional canal provided at the side of the paddy field, the water flow was dammed up, and the water level was raised by this, and the water was drawn in from the pull-in canal to the paddy field.

Explanation of symbols

A water stop device B paddy field C water channel D lead-in water channel 1 frame 2 horizontal long frame 3 horizontal short frame 4 water stop plate 5 caster 6 roller 8 constant load spring 9 first tank 10 first pump 10a first tank intake port 10b first tank One drain hose 10c First drain hose drain 11 Timer 12 Second tank 13 Second pump 13a Second tank intake 13b Second drain hose 13c Second drain hose drain 14 Water level sensor 15 Turnbuckle 15a Nut 19 Tank 20 Pump

Claims (10)

The irrigation channel to the cultivation pond or paddy field is an irrigation channel provided in the upper part of the side wall, and the left and right frames are fixed upright opposite to each other on both side walls in the downstream position near the irrigation channel of the irrigation channel. The left and right frames are slidably supported on both side edges of a water stop plate made of a rectangular flat plate from above, and the lower part of the space formed by the left and right frames facing each other or It is formed so as to be located at the upper part, and fixed load springs are fixed to the upper parts of the left and right frames, respectively, and the free ends of the constant load springs are fixed to the upper part of the water stop plate,
A first tank and a second tank for storing water are provided, the first pump intake port is connected to the first tank, the second pump intake port is connected to the second tank, and the first drain hose of the first pump is connected. Connect the drainage port to the second tank, connect the drainage port of the second drainage hose of the second pump to the first tank, and provide a timer for operating the first pump. Provide a water level sensor to operate two pumps,
The second tank is provided on the water stop plate, the first tank is placed near the second tank to form a water stop device,
When the preset time is reached, the timer is instructed to operate the first pump to move the water stored in the first tank into the second tank, and the second tank is filled with water. And the second tank lowers the water stop plate against the force of the constant load spring by its own weight to dam the water flow in the irrigation channel, dams the water flow and raises the water level to raise the water level. While drawing water into the cultivation pond or paddy field through, when the second tank is filled with water, the movement of the first pump is stopped by the detection of a sensor or a timer,
When the water level of the cultivation pond or paddy field rises, the water level sensor detects this, operates the second pump by the water level sensor, moves the water in the second tank into the first tank, The movement of the water reduces the weight of the second tank, and the water stop plate is pulled upward by the force of each constant load spring to restore the water flow in the irrigation channel. A water stop device for an irrigation channel, characterized in that when it is satisfied, the movement of the second pump is stopped by sensor detection or a timer. When the water level of the cultivation pond or paddy field is high, the first pump is not operated by the instruction of the water level sensor even if the operation of the first pump is instructed by the timer. A water stop device for a water channel according to claim 1. In place of the timer for operating the first pump, a second water level sensor for detecting the low water level of the cultivation pond or paddy field and operating the first pump is provided in the cultivation pond or paddy field, The water stop apparatus for the water channel according to claim 1. The water stop device for an irrigation channel according to any one of claims 1, 2, or 3, wherein the second tank is provided integrally with the water stop plate. The left and right frames of the water stop device are erected, and horizontal frames are respectively provided at substantially intermediate and lower positions of the erected left and right frames,
When attaching the water stop device to the irrigation channel, the horizontal frames of the left and right frames are brought into contact with the side walls of the irrigation channel, and a turnbuckle is placed between the horizontal frames in contact with the side walls of the irrigation channel. The horizontal frame is pressed against each side wall of the irrigation channel with these turnbuckles, and the frame is attached to the irrigation channel. Water stop device for irrigation canals. Each of the left and right frames fixed to each side wall of the irrigation channel is a fixed-length channel type, and the recesses of each of these frames are provided facing each other,
A plurality of rollers or casters are rotatably provided on both side edges of the water stop plate in a direction along both side edges of the water stop plate or in a direction orthogonal to the direction along both side edges of the water stop plate, The water stop of the irrigation channel according to any one of claims 1, 2, 3, 4 or 5, wherein both side edges of the water stop plate are slidably fitted in each recess of each frame. apparatus. Instead of the first pump and the second pump, a single forward / reverse rotatable pump is provided, one intake / drain port of the forward / reverse rotatable pump is connected to the first tank, and the forward / reverse rotation is performed. Connect the other intake and drainage port of the free pump to the second tank, provide a timer for forward rotation of the pump, and provide a water level sensor for reverse rotation of the pump in the cultivation pond or paddy field,
When the preset time is reached, the pump is rotated forward in accordance with an instruction from the timer to move water from the first tank into the second tank, and when the second tank is filled with water, a sensor Stop the normal rotation of the pump by detecting or timer,
When the water level of the cultivation pond or paddy field rises, the water level sensor senses this, and the water level sensor moves the water in the second tank into the first tank by operating the pump in reverse rotation, The structure according to any one of claims 1, 2, 4, 5 and 6, wherein when the first tank is filled with water, the reverse rotation operation of the pump is stopped by sensor detection or a timer. The water stop device of the irrigation canal described. In place of the timer for operating the pump, a second water level sensor that senses the low water level of the cultivation pond or paddy field and operates the pump in a normal rotation is provided in the cultivation pond or paddy field. Item 8. A water stop device for a water channel according to item 7. In place of the first tank and the second tank, a single tank is provided, and in place of the first pump and the second pump, a single pump capable of forward and reverse rotation is provided, and the tank can be rotated forward and backward. Connect one intake / drain port of the pump, provide the other intake / drain port of the pump in the irrigation channel, provide a timer for operating the pump in the forward direction, and also supply the pump to the cultivation pond or paddy field. Is provided with a water level sensor for reverse rotation operation, the tank is provided on the water stop plate,
When the preset time is reached, the pump is rotated forward according to the instruction of the timer to take water from the water channel into the tank, and when the tank is filled with water, the pump is detected by a sensor or a timer. Stops the forward rotation of the
When the water level of the cultivation pond or paddy field rises, the water level sensor detects this, and the water level sensor causes the pump to rotate in reverse, returning the water in the tank to the irrigation channel, while the water in the tank The water stop device for a water channel according to any one of claims 1, 2, 4, 5, or 6, wherein the reverse rotation operation of the pump is stopped by sensor detection or a timer when the condition is satisfied. In place of the timer for operating the pump, a second water level sensor that senses the low water level of the cultivation pond or paddy field and operates the pump in a normal rotation is provided in the cultivation pond or paddy field. Item 10. A waterway stop device according to Item 9.