JP2006115785A - Water intake regulator for irrigation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water intake regulator for irrigation that can be more economically provided compared with the conventional water gate, moreover can be closely shut with a high degree of tightness, more than ever before, thus can attain more exact volume regulation of the irrigation water, for example, in fields of rice plant. <P>SOLUTION: In this water intake regulator for irrigation 1, a round and straight guide pipe 3 made of vinyl chloride resin is vertically set to the block main body 2 and form a tunnel-like intake pipe 4 so as to intersect with the guide pipe 3. Further, the pipe body 5 for water volume controlling stopper is made of a round and straight vinyl chloride resin pipe same as that of the guide pipe 3 and is made elastically shrinkable by partially cutting off the pipe body 5. The resultant pipe body water volume-controlling stopper 5 is set to the guide pipe 3 so that it is made vertically slidable and rotatable in the circumferential direction. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

    The present invention includes all fields related to water intake technology for drawing irrigation water into paddy fields, fields, etc., and includes not only the field of manufacturing water intakes, but also the equipment required for the manufacture, From the field of providing and selling instruments, the field of providing materials, machinery, and parts necessary for such materials, such as wood, stone, various fibers, plastics, various metal materials, etc. In general, industrial machinery such as parts and control-related equipment that integrates them, various measuring instruments, equipment, power machinery that moves equipment, electric power that is energy, and energy that is the source of energy, oil In addition to the fields collectively referred to, the equipment and instruments are tested and researched, the fields related to the display, sales, import and export, generals, the results of their use and To the fields related to the collection and transportation of garbage debris generated by the operation of equipment and equipment for construction, the recycling field that makes it possible to efficiently recycle these garbage debris, and other new fields that cannot be envisaged at this time There are no technical fields that are not related.

(point of view)
In Japan, paddy fields and fields have been cultivated by irrigation, which has a long history of cultivating vines around the fields and collecting natural rain to cultivate crops, gradually drawing water from the river and ensuring stable water intake. In recent years, agricultural land that has been fully equipped with agricultural waterways, drainage channels and agricultural roads that make it easy to carry in large-scale agricultural machinery has been developed, even under adverse weather conditions such as drought, heavy rain, and typhoons. The foundation has been developed to ensure a more stable yield.

    In paddy fields with such irrigation and drainage facilities, fine irrigation management is carried out according to various conditions such as rice growth, weeding and fertilization, from rice planting following early spring to the midsummer and autumn harvest seasons. It is indispensable to do this, and failure to do so will cause a decrease in yield and a significant decline in rice quality, and is one of the tasks that rice farmers need to pay close attention to.

    A specific example of such irrigation and drainage equipment is a rail formed on the left and right frames by cutting a part of the shoreline on the paddy field facing the agricultural waterway and inserting concrete left and right frames between them. A sluice is provided between the grooves so that a plurality of wooden flat plates can be detachably mounted from above, and the necessary number of flat plates can be attached and detached. Cut off some of the parts installed on the shore facing the shore, or on the top and bottom of the paddy field as well as on the bottom of the paddy field, and pile up sandbags with soil in a waterproof bag and close The sandbags were removed as needed, and the amount of irrigation was adjusted.

    However, such a simple sluice up to now has a gap in the former between the concrete frame and the flat plate or at the joint between the flat plates, and in the latter, the sandbags are stacked and the gap is made with mud or the like. Although it is buried and closed, if the flow rate of irrigation water increases due to heavy rain, etc., the gap between the sandbags will be generated, or if the bad conditions overlap, the sandbag will be swept away. It was difficult to ensure the state, and it was difficult to ensure the desired flooded or drained state.

(Conventional technology)
In order to eliminate these harmful effects, for example, as in the invention of “Sluice and its construction method” disclosed in Japanese Patent Application Laid-Open No. 2001-348850, there is a water stop plate integrally attached to the precast concrete bench flume. In addition, a cylindrical water pipe connected to the water stop plate and penetrating the concrete, and a lid member for opening and closing the opening of the water pipe so as to be openable and closable, disclosed in JP-A-9-327244 As can be seen in a certain "paddy water level adjusting device" invention, a folding plate with rubber plates attached to both edges is installed so as to be slidable between fixed plates to form a sluice, and the tilting angle of the folding plate is changed. The height of the sluice gate can be changed, and the rubber plate is in contact with the fixed plate by its own restoring force to keep water tight and remove mud, grass, straw debris, etc. from the sliding part. And a solar cell is operated by the electrical driving device as a power source, the drive apparatus such as those to be wireless remote control have already been developed by the Telecommunications.
(1) JP 2001-348850 A (2) JP 9-327244 A

(Awareness of problems)
However, the former sluice by “Sluice and its construction method” emphasizes the efficiency of construction work, and its components are placed on the lid member that closes the water pipe that is immersed in the water. It requires a large number of parts such as a handle and a bar member that are stretched to the right, and guide fittings for guiding them, and is expensive compared to a conventional simple sluice. In addition, the latter “paddy field level adjustment device” also has a drive source using solar cells, an electric drive device for wireless remote control, etc. In addition to being expensive, when multiple irrigation is individually controlled, the operation is complicated, and it is difficult to handle for small farmers and those who do not like complicated remote operation due to aging. End up Theft was intended to be a concern.

(Object of invention)
Therefore, the present invention can be provided at a lower cost than a conventional sluice, can be sealed with a water tightness that cannot be obtained conventionally, and the irrigation amount can be more accurately determined. Judging from whether it is possible to provide a sluice that can be adjusted, we have begun to develop and research it quickly and have repeated trials and errors over many years and many trials and experiments. The present invention has succeeded in realizing an intake controller for irrigation having a simple structure, and the configuration thereof will be described in detail below together with an embodiment representing the present invention shown in the drawings.

(Structure of the invention)
As will be clearly understood from the embodiments representing the present invention shown in the drawings, the irrigation intake regulator included in the present invention basically comprises the following configuration.
That is, a guide pipe made of a vinyl chloride round straight pipe is embedded and integrated in the vertical direction of the concrete block main body to form a hollow vertical hole, and the guide pipe has a cross-like arrangement at an appropriate position in the vertical direction. Forming a water intake pipe line having a diameter that fits in the inner diameter range of the guide pipe that communicates with the hollow vertical hole and that crosses and penetrates the block main body, and from the upper end opening of the guide pipe, Made of vinyl chloride of the same diameter or equivalent elastic material, consisting of a round straight pipe that is longer than the entire length of the guide tube, and its circumferential width is cut out over its entire length, and elastic deformation in the circumferential direction An irrigation water intake adjuster having a configuration in which the pipe body for the water amount adjusting plug that can be mounted is attached and combined so as to be slidable in the vertical direction and rotatable in the circumferential direction.

    In other words, a guide pipe made of a vinyl chloride round straight pipe is embedded in the vertical direction of the concrete block body to form a hollow vertical hole. The intake pipe line having a diameter that fits within the guide pipe inner diameter range that crosses and penetrates the block main body is formed in a cross-like arrangement at an appropriate position in the vertical direction of the guide tube. From the upper end opening of the pipe, it consists of a round straight pipe made of vinyl chloride or the same elastic material with the same diameter as that of the guide pipe, and has a length that is longer than the total length of the guide pipe. A pipe for a water amount adjusting plug that is cut and can be elastically deformed in the circumferential direction is mounted and combined so as to be slidable in the vertical direction and pivotable in the circumferential direction. It adheres to the peripheral surface It can be said that way the irrigation water intake regulator having the structure.

    In the irrigation intake adjuster having the basic configuration described above, a guide pipe made of a vinyl chloride round straight pipe is embedded in the vertical direction of the concrete block main body to form a hollow vertical hole. In addition, it forms a crossover arrangement at an appropriate position in the vertical direction of the guide pipe, communicates with the hollow vertical hole, and forms a water intake piping passage having a diameter that fits within the guide pipe inner diameter range so as to cross and penetrate the block body. On the other hand, from the upper end opening of the guide tube, the guide tube is made of a vinyl chloride having the same diameter or an equivalent elastic material, and is made of a round straight tube having a length longer than the entire length of the guide tube. Can be elastically deformed in the circumferential direction, and the pipe for the water control plug with the handle for operation at the upper end is slidable in the vertical direction and swivel in the circumferential direction. Attached to and combined with Irrigation water intake regulator of growth and the like.

    Similarly, a guide pipe made of a vinyl chloride round straight pipe is embedded and integrated in the vertical direction of the concrete block main body to form a hollow vertical hole, and at the right place in the vertical direction of the guide pipe, An upper end opening of the guide tube is formed while communicating with the hollow vertical hole to form a water intake pipe line having a diameter that fits within the guide tube inner diameter range so as to traverse and penetrate the block body in a straight line. Consists of a round straight pipe made of vinyl chloride or the same elastic material with the same diameter as the guide pipe, and longer than the entire length of the guide pipe. It can be elastically deformed in the direction, and the pipe for the water control plug, which is provided with a handle for operation at the upper end, is attached and combined so that it can slide in the vertical direction and turn in the circumferential direction. Includes water intake regulator.

    And as a more desirable configuration, a guide pipe made of a vinyl chloride round straight pipe is embedded in the vertical direction of the concrete block main body, and a hollow vertical hole is formed by integrating it, and the paddy paddy bank The upper end of the guide tube when it is buried in a predetermined location is above the upper surface of the block body and is extended to the length that can be exposed and opened on the shore. An intake pipe line having a diameter that fits within the guide pipe inner diameter range that is arranged and communicated with the hollow vertical hole and that passes through and penetrates the block main body in a straight line is formed. A waterway connecting pipe can be connected to the opening on the irrigation waterway side, and a water discharge pipe can be connected to the opening on the paddy field side. On the other hand, from the upper end opening of the guide pipe, a chloride of the same diameter as that of the guide pipe can be connected. Vinyl or equivalent bullet It is made of a material and consists of a round straight pipe that is longer than the entire length of the guide pipe. A predetermined width in the circumferential direction is cut out over the entire length and elastic deformation in the circumferential direction is possible. A pipe for a water amount adjusting plug provided with a handle is mounted and combined so as to be slidable in the vertical direction and turnable in the circumferential direction, and its outer peripheral surface is brought into close contact with the inner peripheral surface of the guide tube by its own elasticity. This is the irrigation intake regulator with the above structure.

    As described above, according to the water intake adjuster for irrigation of the present invention, a guide pipe made of a vinyl chloride round straight pipe is built in a concrete block main body so as to have a substantially vertical posture and an upper end is opened. From one side outer wall, it penetrates into the inner diameter range of the guide pipe at a suitable location, and forms a water intake piping that reaches the other side outer wall. From the upper end of the guide pipe, it is made of vinyl chloride with the same outer diameter as the guide pipe A pipe for water volume control plugs obtained by processing a round straight pipe based on its originality, mounted so that the opening of the intake pipe can be adjusted vertically and slidable in the circumferential direction. As a result, the number of required parts can be greatly reduced compared to conventional sluice gates, and it can be offered to the market at a relatively low cost. Moreover, it is a straight PVC pipe with the same diameter as the guide pipe. A part of the circumference of the By using the pipe for the water adjustment plug that is elastically reduced in diameter, both the inner circumference of the guide pipe and the outer circumference of the pipe for the water adjustment plug are joined together with the help of both being made of vinyl chloride. It has a superior characteristic that it can secure high sealing performance and water level adjustment function that could not be easily obtained with conventional structure, and can adjust irrigation amount more accurately It is.

In implementing the present invention having the above-described configuration, the best or desirable mode will be described.
The block body is embedded in the paddy field so as to form an intake pipe connecting the irrigation canal side and the paddy field side. The guide tube that allows the tube body to be mounted and opened / closed can be arranged in a cross shape, and can be stably embedded in the ground, and the intake pipe and the guide tube As long as it can be firmly fixed to the proper crossover state, its material and shape are not limited, but it should preferably withstand installation workability and long-term use in the ground. It is most desirable to be made of precast concrete with built-in, and it can be an outline shape of a rough cube or a rectangular parallelepiped type without waste, but it is not limited to them, Severance It can be appropriately selected from various shapes that can be easily embedded in the cross-sectional shape of the shore such as a triangular shape or a trapezoidal side cross-section, and a lifting hook can be integrated or removed as necessary. In addition, it is possible to form an uneven shape, a trough member, or the like for firmly fixing in the dredged soil at an appropriate place on the peripheral wall surface.

    The guide tube is capable of guiding the pipe for adjusting the amount of water to the intake pipe formed in a substantially tunnel shape in the block body so as to be able to advance and retreat in a cross shape and is elastic toward the outside in the diameter direction. The block body is designed to be able to secure a liquid-tight state over the joint range by closely joining the inner peripheral wall surface to the outer peripheral wall surface of the water amount adjusting plug tube to be expanded. In addition to being able to penetrate from the appropriate location on the upper wall surface to the appropriate location on the lower wall surface, as shown in the examples, it is also possible to have a bottomed structure in which a concrete thick portion remains in the vicinity of the lower wall surface. Yes, the diameter dimension and its diameter range position match the diameter dimension and its diameter range position of the intake pipe crossing part, or the diameter dimension is larger than the diameter dimension of the crossing part of the intake pipe line, and the diameter dimension Range is for water intake It should be set so that the diameter dimension range of the passage is included, and the peripheral wall surface corresponding to the penetrating portion of the water intake piping passage should have a through hole for water passage, and a predetermined standard (for example, It should be made of vinyl chloride round straight pipes manufactured according to JIS standards and sold widely, and guides the pipe for the water control plug in a posture in which the block body is embedded and installed in the cage. Although it is desirable to form the service pipe so as to have a substantially vertical posture, it is not impossible to form the pipeline in a somewhat inclined posture.

    The pipe for the water amount adjusting plug is moved back and forth in a cross shape with respect to the intake pipe line formed in a substantially tunnel shape in the block body, so that the cross-sectional area of the intake pipe line is fully closed and fully opened. The flow rate can be adjusted freely, and the outer peripheral wall surface can be expanded toward the outside in the diametrical direction to exert elasticity and press against the inner peripheral wall surface of the guide tube. The guide tube is made of a vinyl chloride round straight tube with the same diameter as or slightly larger in diameter than the guide tube. The outer diameter of the pipe is cut to the outer diameter, the outer diameter is elastically reduced to a possible shape, and the length is set to a length that exceeds the inner diameter of the intake pipe. It is desirable to provide a handle for the operation as appropriate. If it is taken into consideration, it is convenient to set it to a length that exceeds the total length of the guide tube, but in a closed state it is set as short as possible so that it is stored in the guide tube so that it does not protrude unnecessarily on the shore. It is also possible to extend the handle part or its handle part upward so that it protrudes from the upper end of the guide tube, and the handle part part is folded and stored after the operation is completed. Or can be removed and removed so that it can be stored separately.

The water intake pipeway connects the irrigation waterway side and the paddy field side with the wall thickness of the block body to enable water intake from the irrigation waterway. The diameter of the crossing part is fulfilled by the fact that the pipe is crossed and the opening is adjusted as the pipe for the water amount adjustment plug moves forward and backward, and the cross-sectional area of the flow path can be freely changed. Is equal to the diameter size of the guide tube, and the diameter size range of the crossing portion is equal to the diameter size range of the guide tube, or the diameter size of the crossing portion is smaller than the diameter size of the guide tube. The diameter of the crossing section should be crossed so that it falls within the diameter dimension of the guide tube. In consideration of manufacturing workability and installation workability, a substantially horizontal and straight pipe is installed in the block body. It is desirable to use a road, but it is buried in the cage. In the block body when installed, it is possible to make a pipe shape that is inclined to some extent in the vertical and horizontal directions, or bent in a staircase shape. The shape of the pipe can be L-shaped or J-shaped, or the shape of a plane that joins or branches in the middle can be Y-shaped or T-shaped. When the pipe shape is adopted, each of the branched pipes can be provided with guide pipes each having a water amount adjusting plug pipe attached thereto. The opening end of the irrigation canal side that opens to the outer side wall is stretched and formed to a length that protrudes to some extent from the underground part of the shore to the paddy field side, and the opening end on the paddy field side reaches the irrigation canal. To be stretched An ability can be made which has extended by connecting the manufactured vinyl chloride pipe of suitable length and shape corresponding to the open end of each.
In the following, the structure of the present invention will be described in detail together with an embodiment representative of the present invention shown in the drawings.

    The example shown in the perspective view of the irrigation intake regulator in FIG. 1 and the sectional view of the irrigation intake regulator embedded in the shore of FIG. 2 is from the upper wall surface of the concrete block body 2 to the lower wall surface. A guide pipe 3 made of a vinyl chloride round straight pipe is vertically penetrated and integrated into the wall thickness hung on the wall, and one end of the side wall is opened in the block body 2. The other end is opened at the other end, and a tunnel-like water intake pipe passage 4 is formed integrally at an appropriate place in the middle of the guide pipe 3 in a crossing manner. The water volume adjustment is made of a round straight pipe made of vinyl chloride having the same diameter as the pipe 3, and a predetermined width range of the peripheral wall is cut between both ends of the round straight pipe so that the outer diameter can be elastically reduced. The stopper pipe body 5 has its outer peripheral surface made to its inner peripheral surface by its own elastic force. It illustrates an embodiment representative of the irrigation water intake regulator as attached to formed by the present invention in pressure contact with the tight manner and vertically slidably and circumferentially pivotable.

    The irrigation water intake regulator 1 is formed in a substantially rectangular parallelepiped shape having a side of about 200 to 250 mm, and has a block body 2 made of precast concrete in which reinforcing bars (not shown) are arranged. From the outer wall, to the depth position where the tens of mm thickness of the lower center outer wall is left, a hollow guide tube 3 made of a vinyl chloride round straight tube having an inner diameter of around 132 mm is vertically embedded, integrated, and the upper end thereof is integrated. It is assumed that the block main body 2 protrudes from the outer wall of the upper surface by about several hundred mm vertically upward.

    Inside the wall thickness of the block main body 2, an inner diameter of about 110 mm extends from the approximate center of one side outer wall through the middle part of the guide tube 3 to the approximate center of the other side outer wall on the opposite side. An intake pipe 4 having a substantially horizontal and straight tunnel shape is formed, and the center of the pipe is arranged so as to intersect with the center of the pipe of the guide pipe 3 substantially orthogonally. When installing in the soil, the end opening on the side facing the paddy field 6 of the water intake piping 4 is made of a vinyl chloride round straight pipe having an inner diameter of about 107 mm, and the water discharge is appropriately set in dimensions. The pipe 41 and the end opening on the side facing the irrigation water channel 7 side at the time of installation are made of a vinyl chloride round straight pipe set to the same inner diameter of about 107 mm as the water discharge pipe 41, The pipes 42 for connecting water passages having appropriate dimensions are integrally connected to each other.

    The guide pipe 3, the water discharge pipe 41 and the water channel connection pipe 42 are previously connected and integrated in a cross shape, and can be integrated at the stage of the concrete molding process of the block body. After molding the block main body having holes, it is possible to attach and integrate them through an adhesive or other coupling structure, and the water discharge pipe 41 and the water channel connecting pipe 42 are installed at the installation location. It is desirable to make it possible to make a retrofit connection after adjusting the length, pipe shape, etc. by appropriately processing such as cutting or connecting according to conditions.

    The upper end opening of the guide tube 3 is made of a vinyl chloride round straight tube having the same diameter as the guide tube 3 and is set to have a length of about 600 to 700 mm exceeding the total length of 400 to 500 mm. , By pressing a predetermined width range of an appropriate place on the peripheral wall surface, for example, about 20 to 100 mm, between both ends (full length) of the vinyl chloride tube and cutting the circumferential end portions of the cut portion 51 closer to each other. The outer diameter over the entire length is made into a shape that is elastically reduced, and an extra portion is secured in advance at the stage of determining and cutting the entire length of the vinyl chloride round straight pipe, The handle portions 52 and 52 are integrally formed by processing so as to leave a rod-like handle portion at two locations that are substantially balanced and facing each other, and folding each other about 90 ° inward. When The water amount adjustment stopper for tube 5 consisting Te, it is assumed that the vertical direction slidably and circumferentially pivotally is mounted from the lower side.

(Operation of Example)
As shown in FIG. 2, the irrigation intake regulator 1 of the present invention configured as described above is embedded in the soil of the shore 61 of the paddy field 6 and formed in the block body 2. The water discharge pipe 41 is connected to the opening on the paddy field 6 side of the pipe line 4, and the end thereof is exposed from the soil of the paddle 61 and opened to the paddy field 6 side. A guide pipe projecting from the upper surface of the block body 2 is connected to the opening on the side of the irrigation canal 7 so that the end of the pipe 42 is exposed in the irrigation canal 7 and opens below the surface of the water. 3 The upper end of the paddy field 61 is exposed by the upper end of the paddle 61 being exposed, and the pipe 5 for the water amount adjusting plug is attached to the upper end opening of the guide pipe 3 from the lower end side. Complete the installation work at the location.

    The irrigation intake regulator 1 can be installed in the same manner on the shores 61 and 61 on both the water supply side and the drainage side of the paddy field 6. Can be adjusted individually, and when taking water, as shown in FIG. 2, the pipe 5 for water intake is opened by pulling up the pipe body 5 for adjusting the amount of water. 2, a desired amount of water can be allowed to flow from the irrigation canal 7 to the paddy field 6 as indicated by the white arrows in FIG. In addition, it is possible to adjust the water intake accurately, and the outer peripheral wall surface of the water amount adjusting stopper tube body 5 is tightly joined to the inner peripheral wall surface of the guide tube 3 by its elastic restoring force. It eliminates unnecessary water leakage at any stage from the state to the fully closed state. Ya Kana water intake regulation becomes a thing to be achieved.

(Effect of Example)
In addition to the features described in the section of the effect of the present invention, the irrigation water intake adjuster 1 of the embodiment having the above-described configuration is provided with a vinyl chloride round opening at the opening on the paddy field 6 side of the water intake piping 4. By connecting the water discharge pipe 1 made of a pipe and the same water channel connecting pipe 42 to the opening on the irrigation water channel 7 side, free piping can be performed according to the conditions of the installation location. It is possible to freely set the direction of intake flow that cannot be obtained by the conventional sluice gate at the stage of installation work, and provide it as an installation structure more in line with the intention of the intake manager. The advantage of being able to do is obtained.

    Further, the handle portion 52 for operation of the water amount adjusting plug tube body 5 is formed by cutting it into two integral rods from a vinyl chloride round straight tube and bending them inward. Therefore, it is possible to perform an operation to make the water amount adjusting stopper pipe body 5 slidable in the vertical direction and turnable in the circumferential direction without adding or combining new parts. The component structure is a block body 2 made of precast concrete with a built-in reinforcing bar, a guide pipe 3 made of a round straight pipe made of vinyl chloride, a pipe 5 for a water amount adjusting plug, a water discharge pipe 1 for a water intake pipe line 4, a water path By restricting to the connecting pipe 42 only, bolts, nuts and other metal fittings that were indispensable in the conventional sluice gate are not required, and there is little damage due to rust or wear, and excellent durability. It has to have a characteristic that can be made to stage economic.

(Conclusion)
As described above, the irrigation intake regulator according to the present invention can achieve the intended purpose evenly by its novel configuration, is easy to manufacture, and is in comparison with the conventional sluice. The number of parts used can be greatly reduced, and it is realized as a simple combination of a concrete block body and a vinyl chloride pipe, making it extremely economical, and fine irrigation Will be highly appreciated by rice farmers and horticultural farmers who are obsessed with water intake management in paddy fields, and are expected to be widely used and spread. The

The drawings show a typical embodiment that embodies the technical idea of the irrigation water intake regulator of the present invention.
It is a perspective view which shows the structure of the water intake regulator for irrigation. It is sectional drawing which shows the installation state of the water intake regulator for irrigation.

Explanation of symbols

1 Irrigation intake regulator 2 Block body 3 Guide pipe 4 Intake pipe
41 Same water discharge piping
42 Same pipe connection pipe 5 Pipe for water control valve
51 Same excised part
52 Handle part for the operation 6 Paddy field
61 Wharf 7 Irrigation channel

Claims (5)

    A guide pipe made of a vinyl chloride round straight pipe is embedded and integrated in the vertical direction of the concrete block body to form a hollow vertical hole, and the guide pipe has a cross-like arrangement at an appropriate position in the vertical direction. While forming a water intake piping path having a diameter that fits within the guide tube inner diameter range that communicates with the hollow vertical hole and that crosses and penetrates the block main body, the upper end opening of the guide tube Made of vinyl chloride of the same diameter or an equivalent elastic material, it consists of a round straight pipe that is longer than the entire length of the guide tube. The predetermined width in the circumferential direction is cut out over the entire length, allowing elastic deformation in the circumferential direction. An irrigation water intake adjuster characterized in that the pipe body for the water amount adjusting plug is attached and combined so as to be slidable in the vertical direction and rotatable in the circumferential direction.     A guide pipe made of a vinyl chloride round straight pipe is embedded and integrated in the vertical direction of the concrete block body to form a hollow vertical hole, and the guide pipe has a cross-like arrangement at an appropriate position in the vertical direction. While forming a water intake piping path having a diameter that fits within the guide tube inner diameter range that communicates with the hollow vertical hole and that crosses and penetrates the block main body, the upper end opening of the guide tube Made of vinyl chloride of the same diameter or an equivalent elastic material, it consists of a round straight pipe that is longer than the entire length of the guide tube. The predetermined width in the circumferential direction is cut out over the entire length, allowing elastic deformation in the circumferential direction. The pipe for the water amount adjustment plug is attached and combined so as to be slidable in the vertical direction and turnable in the circumferential direction, and its outer peripheral surface is brought into close contact with the inner peripheral surface of the guide tube by its own elasticity. For irrigation Water regulator.     A guide pipe made of a vinyl chloride round straight pipe is embedded and integrated in the vertical direction of the concrete block body to form a hollow vertical hole, and the guide pipe has a cross-like arrangement at an appropriate position in the vertical direction. While forming a water intake piping path having a diameter that fits within the guide tube inner diameter range that communicates with the hollow vertical hole and that crosses and penetrates the block main body, the upper end opening of the guide tube Made of vinyl chloride of the same diameter or an equivalent elastic material, it consists of a round straight pipe that is longer than the entire length of the guide tube. The predetermined width in the circumferential direction is cut out over the entire length, allowing elastic deformation in the circumferential direction. An irrigation characterized in that a pipe for a water amount adjusting plug having an operating handle at an appropriate position on the upper end is attached and combined so as to be slidable in the vertical direction and pivotable in the circumferential direction. Water intake regulator.     A guide pipe made of a vinyl chloride round straight pipe is embedded in the vertical direction of the concrete block body and integrated to form a hollow vertical hole, and the guide pipe is arranged orthogonally at an appropriate place in the vertical direction. The pipe is connected to the hollow vertical hole, and forms a water intake piping passage having a diameter that fits within the guide tube inner diameter range that passes through and penetrates the block body in a straight line. The guide tube is made of vinyl chloride of the same diameter or the same elastic material, and consists of a round straight tube that is longer than the total length of the guide tube. It is possible to be elastically deformed, and a pipe for a water amount adjusting plug provided with a handle for operation at an appropriate position on the upper end is attached and combined so as to be slidable in the vertical direction and rotatable in the circumferential direction. Characteristic irrigation intake adjustment . A guide pipe made of a vinyl chloride round straight pipe is embedded in the vertical direction of the concrete block body and integrated into a hollow vertical hole. Is above the upper surface of the block main body and is exposed on the shore and extended to the length that can be opened, and communicates with the hollow vertical hole in an orthogonal arrangement at an appropriate position in the vertical direction of the guide tube. In addition, a water intake pipe line having a diameter that fits within a guide pipe inner diameter range that passes through and penetrates the block body in a straight line is formed, and an opening on the irrigation water channel side of the water intake pipe line is connected to the water channel. The pipe, and the opening on the paddy side can be connected to a water discharge pipe, respectively, while the upper end opening of the guide pipe is made of vinyl chloride having the same diameter as the guide pipe or an equivalent elastic material, Length longer than the guide tube A pipe for a water amount adjusting plug, which is made of a round straight pipe and whose circumferential width is cut out over its entire length and can be elastically deformed in the circumferential direction. Irrigation intake adjustment, characterized in that it is mounted and combined so as to be slidable in the vertical direction and turnable in the circumferential direction, and its outer peripheral surface is brought into close contact with the inner peripheral surface of the guide tube by its own elastic force vessel.

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