KR20070108431A - Method to construct sliding water gate having free sliding function, and forming fishes passage - Google Patents

Abstract

A method of constructing a sliding water gate having a free sliding function and a fish passage is provided to prevent water leakage perfectly, to purify stream or river, and to protect a hydraulic cylinder and a piston rod by installing a packing member on the guide rail, teetering plates on the sliding water gate, and covers under the sliding water gate. A waterway(11) is formed between both side support structures(10) and a guide rail(12) is installed on the each support structure. A sliding water gate(20) moving along the guide rail is connected with a hydraulic cylinder to be rotated and is opened and closed by the hydraulic cylinder. A packing member(14) is installed on an upper part of the guide rail and contacted with a lower portion of the sliding water gate. Teetering plates(40,50) are installed on both upper and lower portion of the sliding water gate and hinged to a hinge axle(60) respectively. In application, an outer cover and an inner cover are installed under the sliding water gate and at a fixing bracket to protect the hydraulic cylinder and a piston rod.

Description

Method to construct sliding water gate having free sliding function, and forming fishes passage}

1 is a perspective view of the sliding door closing in accordance with the present invention.

Figure 2 is a perspective view of the sliding door opening in accordance with the present invention.

3 is a cross-sectional view of the sliding sluice in accordance with the present invention.

Figure 4 is a detailed perspective view of the seesaw operating plate sliding door according to the present invention.

Figure 5 is a cross-sectional view of the water gate according to an embodiment of the sliding gate according to the present invention.

Figure 6 is a cross-sectional view of the water gate according to another embodiment of the sliding door according to the present invention.

7 is a state diagram when closing the sliding gate according to another embodiment of the present invention.

8 is a state diagram at the time of opening the sliding gate according to another embodiment of the present invention.

*** Explanation of symbols for the main parts of the drawing ***

10: support structure 11: water channel 12: guide rail

13: fixing bracket 14: packing member 20: sluice

21: support bracket 22: guide member 23: inlet

24: outlet 25,44,54: partition 26: discharge passage

27,28: hydraulic pressure reducing plate 29: small string 30: opening and closing cylinder

31, 42, 52: piston rod 40, 50: seesaw operating plate 41, 51: operating cylinder

43,53: Operating slope 45,55: Guide slope 60: Hinge shaft

70 housing 81 outer cover 82 inner cover

The present invention relates to a method of constructing a sliding sluice capable of forming an esophagus with free sliding performance, and more particularly, to prevent a leak by making a perfect packing when the sluice is closed, and to prevent the leakage of the sluice and the sluice. By allowing the space between them to be freely sliding, and forming the fish inside the sluice to allow the fish to move freely even when the sluice is closed to restore or maintain the ecosystem.

As is well known, the sluice is installed in the dike of the dike constructed for the purpose of storing water, and the sluice is a conductive drinking water which is opened and closed as the shaft is located at the lower side of the dike and the hydro is conducted around the shaft by the hydraulic cylinder. When the door and the gate are opened, the center of rotation of the gate is located at the upper side of the bank so that it can act as a bridge to form a bridge, and the lower side of the gate is configured in various ways such as a floating gate that connects hydraulic cylinders. .

However, in the case of the above-mentioned conductive or floating hydrology, a large force is required for the hydraulic cylinder holding the hydrology to withstand the hydraulic pressure, and since the opening and closing operation is performed by rotating the hydrology, the hydraulic load and the hydraulic pressure of the hydrostatic cylinder are intact. There is a disadvantage in that the hydraulic cylinder of a larger capacity is required to be loaded on the surface, and for this reason, it is intended to reduce the capacity of the hydraulic cylinder by making the water gate hollow so as to have buoyancy, but in this case, the hydraulic door may be deformed or damaged by hydraulic pressure. There are disadvantages.

In addition, the hydraulic cylinder that provides the power to open and close the water gate can not only be located in the vertical reservoir space, the failure occurred easily, in consideration of this, the hydraulic cylinder inside the water gate to prevent the failure by preventing the contact of the hydraulic cylinder and water. In some cases, the hydraulic cylinder is located on the side wall of the embankment. In this case, the hydraulic cylinder is very difficult to install, and thus, the workability is reduced. When the hydraulic cylinder failed, the hydraulic cylinder had to be dismantled and dismantled.

In addition, there was a disadvantage that can not be used in a deep water channel due to the structural limitations of the conductive or floating hydrological.

In view of this, the present applicant provides a water gate between each of the levees so as to open and close the drainage channel formed in the middle of the levee in Patent Application No. 2006-36540, wherein the levee is formed to be inclined in an upward direction and the water gate on the surface thereof. And a guide rail slid, and the water gate is positioned in contact with the guide rail in a state in which a stainless steel cover is placed on a concrete body, and the piston rod is fixed to each upper portion of the embankment while fixing hydraulic cylinders. Although the sliding door for mass storage has been disclosed by being rotatably connected to both upper sides of the water gate, the sliding door according to Patent Application No. 2006-36540 has not been properly packed between the guide rail and the water gate. Water pressure causes leakage between the guide rail and the hydrologic gate. Had a disadvantage, in the sluice is closed, there were problems that the fish can not move upstream caused the destruction of the ecosystem.

In addition, Patent No. 571724 includes a water gate installed in the opening of the levee, a rail installed from both sides of the opening to the side of the waterway, and a cylinder installed on one side of the waterway and connected to the watergate to slide the watergate along the rail. The sliding gate is configured to open and close the waterway as the sliding gate slides along the rail according to the expansion and contraction of the cylinder. However, the sliding gate according to Patent No. 571724 also has no packing action, so the gap between the gate and the rail Water leakage is inevitable, and foreign substances floating together as water is discharged from the reservoir is caught between the rails, which makes it difficult for the sliding action of the floodgate to be performed smoothly, and the fish cannot move upstream when the floodgate is closed. Having all the problems that can destroy Respectively.

The present invention has been proposed in view of this point, and the rails are provided on both side support structures forming the waterway, and the water gates are configured to slide along these rails, and the packing is provided between the water gates and the rails and the water gates are closed. By pressing the gate, the water can be completely packed between the gate and the rail to prevent water leakage. When the gate is opened, the gate is lifted so that the sliding movement of the gate can be made freely without interference with the packing. It is to provide a method of forming a sliding sluice that can form the fish while having a free sliding performance that frees the movement of fish even when the sluice is closed.

Hereinafter, the present invention will be described in detail with reference to the disclosed embodiments and accompanying drawings.

Figure 1 is a simplified perspective view of the sliding sluice gate according to the invention, Figure 2 is a simplified perspective view of the sliding sluice gate according to the invention, Figure 3 is a cross-sectional view of the sliding sluice gate according to the invention, Figure 4 Fig. 5 is a detailed perspective view of the seesaw operation plate of the sliding gate according to the present invention, and FIG. 5 is a cross-sectional view of the gate according to an embodiment of the sliding gate according to the present invention, and FIG. 6 is a cross-sectional view of the gate according to another embodiment of the sliding gate according to the present invention.

As shown, in the sliding gate to which the present invention is applied, waterways 11 are formed between the support structures 10 on both sides, and the guide rails 12 are provided on the support structures 10 on both sides, respectively. The sluice gate 20 is provided to be mounted and guided on the rail 12, and the piston rods 31 of the opening and closing cylinders 30 are rotatably connected to the support brackets 21 installed on both lower sides of the sluice gate 20, respectively. Each of the opening and closing cylinders 30 is rotatably connected to fixing brackets 13 installed on both sides of the bottom of the support structure 10, respectively, and the channel 11 is provided through the water gate 20 according to the expansion and contraction of each cylinder 30. It is configured to open and close).

According to the present invention, in the sliding gate, each guide rail 12 is configured to protrude upward, and the guides 12 are inserted into the respective guide rails 12 at the lower both sides of the gate 20 to prevent separation. The members 22 are installed in the vertical direction of the sluice 20, respectively, and the packing members 14 are attached to the upper sides of the waterways of the guide rails 12 so as to be in contact with the bottom surface of the sluice 20. Both sides of the upper and lower sides of the seesaw operation while pressing or lifting the water gate to each of the two seesaw operating plate (40, 50) is installed rotatably on the hinge shaft (60), each seesaw operation plate (40, 50) The inclined operation surfaces 43 and 53 formed at the distal ends of the piston rods 42 and 52 and the outer ends of the respective seesaw operation plates 40 and 50 are contacted with each other on both outer sides of the seesaw operation plate 40. The upper seesaw operating plate 40 of the 50 is rotated downward while the lower seesaw operating plate 50 is upward. It is fixed to the two by two working cylinders 41, 51 to be rotated, respectively. In FIG. 1 and FIG. 2, the operation cylinders 41 and 51 are omitted in brief, but are shown in detail in FIG. 3.

"형상으로 구성한 것을 예로 하여 도시하였다.At this time, the shape of the guide rail 12 and the guide member 22 can be configured in any shape as long as the structure corresponding to each other, the guide member 22 is to prevent the water gate 20 from being separated from the guide rail 12 by water pressure It is preferable to have a structure to be fitted to the guide rail 12, the guide rail 12 is configured in the "tt" shape on the drawing, the guide member 22 is to be caught on the lower side of both sides of the guide rail 12 "

"It is shown by the example which comprised in shape.

In addition, the partitions 44 and 54 are provided to intersect with each other to the inside of each of the seesaw operation plates 40 and 50 to prevent the inflow of foreign substances and at the same time, the gap between the seesaw operation plates 40 and 50. The hinge shaft 60 is eccentrically positioned outward from the center of each seesaw operation plate 40 and 50 so that each seesaw operation plate 40 and 50 is always inclined toward the sluice 20. The partitions 44 and 54 are preferably made of a material having a slight elasticity so as to be in close contact with each other even when the seesaw operation plates 40 and 50 are rotated.

In addition, the operation inclined surface 43 formed at the distal end of the piston rod 42 of the upper operation cylinder 41 of the operation cylinders 41 and 51 is inclined downward to form an outer lower portion of the upper seesaw operation plate 40. The inclined surface 53 formed at the tip of the piston rod 52 of the lower operation cylinder 51 of the operation cylinders 41 and 51 is configured to be inclined upwardly so as to be in contact with the lower seesaw operating plate 50. It is configured to be in contact with the outer top, the hydrological introduction portion of each seesaw operating plate 40, 50, the water gate 20 is in contact with the water gate 20 to the space between each seesaw operating plate 40, 50 Guide slopes 45 and 55 inclined inwardly between the spaces of the seesaw operation plates 40 and 50 so as to be guided, respectively.

In addition, an inlet 23 through which the water in the reservoir is introduced is formed at the upper side of the water reservoir 20, and an outlet 24 through which the water introduced through the inlet 23 is discharged from the lower side of the discharge gate 20. Is formed, a discharge passage 26 in which the partition 25 is blocked in a zigzag shape is formed between the inner inlet 23 and the outlet 24 of the water gate 20, and the discharge passage 26 is formed of the discharged water. A plurality of hydraulic pressure reducing plate for reducing the pressure and the small string 29 for fixing the fish is fixed, wherein the pressure reducing plate is a plurality of plate-type hydraulic pressure fixed at equal intervals in the upper and lower portions of the discharge passage It may be composed of a reduction plate 27, or may be composed of a plurality of trumpet-type hydraulic pressure reducing plate 28 fixed in the middle of the discharge passage (26) in the shape of a trumpet, with its large diameter portion facing the discharge side. To reduce water pressure One thing is applicable to all or any forms.

Reference numeral 70 in the drawings denotes a housing fixed to the support structure 10 to cover the operation cylinders 41 and 51, the seesaw operating plate 40 and 50, and the hinge shaft 60.

Referring to the operation of the sliding gate according to the present invention configured as described above are as follows.

First, when the opening and closing cylinders 30 are extended in the state in which the water gate 20 is open, the guide member 22 of the water gate 20 can move along the guide rails 12, and each seesaw operation plate 40 is provided. The 50 is maintained at regular intervals by the partitions 44 and 54, and each of the seesaw operating plates 40 and 50 is formed with guide slopes 45 and 55, respectively, toward the inward direction of the space between them. When the top gate of each seesaw operation plate 40 and 50 and the water gate 20 meet while the water gate 20 moves, the water gate 20 is naturally guided between the seesaw operation plates 40 and 50. And, when the opening and closing cylinder 30 as far as possible the water gate 20 is able to move to the closed position.

When the water gate 20 moves to the closed position and the upper operation cylinder 41 is extended, an operation inclined surface 43 formed to be inclined downward toward the distal end of the piston rod 42 has an upper slope of the upper seesaw operation plate 40. While contacting the outer lower end portion to rotate the water gate contact portion of the upper seesaw operating plate 40 in the downward direction of the water gate 20, each upper seesaw operating plate 40 is lowered the water gate 20 in accordance with this rotational movement Pressing in the direction is completely sealed between the lower surface of the sluice 20 and the packing member 14, the leak is completely blocked.

When the upper actuating cylinder 41 is contracted and the lower actuating cylinder 51 is elongated in the closed state of the water gate 20, the actuating slope 53 formed to be inclined upwardly at the distal end of the piston rod 52 has a lower seesaw. The water contact area of the upper seesaw operating plate 50 is rotated upward of the water gate 20 while being in contact with the outer upper end of the operating plate 50, and each lower seesaw operating plate 50 is rotated according to this rotational movement. The water gate 20 is lifted upward so that the space between the bottom surface of the water gate 20 and the packing member 14 is lifted.

Therefore, when the water gate 20 is lifted up only by the lower operation cylinder 51 as described above without moving the water gate 20, the lower water of the reservoir space is discharged into the space between the water gate 20 and the packing member 14. Foreign substances such as sedimentary sludge that accumulate on the lower side of the space are discharged together to purify the river water.

In addition, when the opening and closing cylinder 30 to operate the water gate 20 in the state of lifting the water gate 20 as described above, the guide member 22 of the water gate 20 is fitted to the guide rail 12 The waterway 11 is opened while moving along the guide rails 12. Since the bottom surface of the waterway 20 and the packing member 14 are excited during the movement of the waterway 20, the packing member 14 may be viscous. Even if it has, the water gate 20 can move freely without interference of the packing member 14, and since the pressure is not applied to the packing member 14 when the water gate 20 is opened, the life of the packing member 14 can be extended. Will be.

By the way, the guide rail 12 is not always formed in a straight line, but may have a curved path, and since the sluice 20 is a straight line, when the sluice 20 moves the curved circumference of the guide rail 12. The water gate 20 is lifted from the guide rail 12 and at the same time the upper seesaw operating plate 40 can be pushed upward and rotated, the hinge shaft 60 forming the center of rotation of the upper seesaw operating plate 40 The eccentric position is located outward from the center of the upper seesaw operating plate 40, the force acting to descend in the direction of the constant water gate 20 is applied, and thus the upper seesaw operating plate 40 is rotated upwards and then free It naturally returns to the original position while inclining in the direction of the sluice 20 and is no longer rotated in the direction of the lower seesaw operating plate 50 by the partition 44 so that the gap between each seesaw operating plate 40 and 50 is maintained. Will keep .

In addition, the lower seesaw operating plate 50 also has a hinge axis (60) constituting the rotation center is eccentrically positioned outward from the central portion of the lower seesaw operating plate 50, the force acts to lower in the direction of the constant water gate (20), When the lower actuating cylinder 51 is extended and contracted, the lower seesaw actuating plate 50 is free and returns to its original position, and the piston rod 52 of the lower actuating cylinder 51 is operated at the distal end thereof. Since the inclined surface 53 is in contact with the outer upper end of the lower seesaw operating plate 50, the lower seesaw operating plate 50 is in a horizontal position, and thus the lower seesaw operating plate 50 is always maintained in a horizontal state.

In addition, since the partitions 44 and 54 of each of the seesaw operation plates 40 and 50 are configured to intersect with each other as described above, foreign matter does not flow into the space between the seesaw operation plates 40 and 50 and thus, It is possible to improve the reliability of the seesaw operation of the seesaw operation plate 40, 50, and because the guide rail 12 is formed to protrude upward, foreign matter may be caught on the guide rail 12 when discharging water in the reservoir space. There is no concern that there is also an advantage that can improve the reliability of the sluice 20 operation.

On the other hand, when the water level rises up to the inlet 23 of the reservoir 20 in the state in which the water gate 20 is closed, the water in the upper portion of the reservoir space flows through the inlet 23 and is zigzag by the partition 25. It moves along the discharge passage 26 formed in the shape and can be discharged through the discharge port 24 on the discharge side of the sluice 20 so that the low water level can be stably maintained without opening the sluice 20 as well as the reservoir space. Foreign matter suspended in the upper part can also be discharged together to purify the river water.

In addition, the fish enters through the discharge port 24 formed on the discharge side of the sluice 20 and moves along the discharge passage 26 formed in a zigzag shape, and then upstream through the inlet 23 on the water sluice 20 reservoir side. The discharge passage 26 is provided with a plurality of plate-type hydraulic pressure reducing plate 27 or a plurality of trumpet-type hydraulic pressure reducing plate 28 to reduce the pressure of the discharged water to the extent that the fish can be burned. In addition, the zigzag-shaped discharge passage 26 is provided with a plurality of small strings 29 are fixed so that the fish moves through the zigzag-shaped discharge passage 26 and the fins of their fins The rest of the fish can be more restrained by being rested on (29), and relying on the small string (29).

That is, according to the present invention can discharge the upper reservoir water without opening the sluice 20 to maintain the low water level, as well as to clean the river water, the discharge passage formed in the fish sluice 20 ( 26) it can be moved upstream to restore or maintain ecosystems.

In addition, in the present invention, the opening and closing cylinders 30 are illustrated as being rotatably connected to both lower sides of the sluice 20, but each opening and closing cylinder 30 may be rotatably connected to both upper sides of the sluice 20. Is self-explanatory, by connecting the rope to the end of the piston rod 31 of the opening and closing cylinder 30 to open and close the water gate 20, or by connecting the wire rope to the water gate 20 and winding the water gate 20 by All such embodiments are well known in the art, and thus, only the power transmission method of the sliding gate without changing the gist of the present invention is naturally within the scope of the present invention.

In addition, in the drawings of the present invention by showing an example that the opening and closing cylinder 30 for opening and closing the water gate 20 is composed of a multi-stage cylinder, instead of such a multi-stage cylinder, a long stroke of the general cylinder may be applied, and thus this modified It is obvious that the embodiments also fall within the scope of the present invention.

In addition, in the drawings of the present invention, the small string 29 is disposed in the middle portion of the discharge passage 26, and the pressure reducing plates 27 and 28 are alternately arranged around the upper and lower centers, as an example. The arrangement of the small string 29 or the pressure reducing plates 27 and 28 is not fixed in a predetermined pattern, and can be changed as many times as necessary for the situation at that time, and the pressure reducing plates 27 and 28 or small wounds may be used. Since the string 29 can be applied to any shape as long as it can perform the original function, the present invention can be used to simply change the shape or arrangement of the hydraulic pressure reducing plate 27, 28 or the small string 29. It is natural that they fall within the scope of their rights.

In addition, in the present invention, the guide inclined surface 45, 55 is formed on each of the seesaw operating plate 40, 50 positioned above and below the water gate 20, but each seesaw operating plate 40, 50 has a shape It is also possible to leave without change without changing the guide inclined surface on each of the seesaw operating plate contact portion of the gate 20, and therefore it is natural that this modified embodiment also falls within the scope of the present invention.

In addition, although not described in the present invention, the material constituting the sluice 20 is preferably composed of a metal material or a concrete structure having a certain weight, but in some cases, a synthetic resin material and a metal material may be mixed, Or it can be configured only with a material or synthetic resin material combined with concrete, it does not place a special limitation on the material of the sluice 20.

On the other hand, Figures 7 and 8 show a sliding gate according to another embodiment of the present invention, the outer cover 81 and the inner cover 82 which is inserted into the double pipe between the gate 20 and the opening and closing cylinder 30 ) Is rotatably fixed to the lower end of the sluice 20 and the fixing bracket 13, respectively, and when the opening and closing cylinder 30 is extended in this state, the sluice 20 enters a closed state and at the same time the outer cover 81 ) And the inner cover 82 is opened to cover the opening and closing cylinder 30, the piston rod 31 can keep the appearance neat, and when the opening and closing cylinder 30 is contracted, the water gate 20 is opened and the outer cover 81 ) Moves in the overlapping direction with the inner cover 82 and overlaps each other, and the opening and closing cylinder 30 and the piston rod 31 are completely covered by the outer cover 81 and the inner cover 82. 11) is open and foreign matters are discharged together with the water filled in the reservoir. The material does not come into direct contact with the open / close cylinder 30 and the piston rod 31 to protect the open / close cylinder 30 and the piston rod 31, which are very important power means for transmitting power to the sluice 20. .

At this time, the material of the outer cover 81 and the inner cover 82 does not occur well even if it is in contact with water, of course, should have a certain degree of rigidity, so it is preferable to be composed of a non-ferrous metal material or stainless steel material, but as a synthetic resin material It is also configurable, and the material is not particularly limited.

In addition, although not shown in the drawings, the outer cover 81 and the inner cover 82 are fastened to each other by configuring the guide grooves and the guide protrusions corresponding to each other in the length direction so as not to be separated from each other. It may be, of course, that such modified embodiments also fall within the scope of the present invention.

As described above, in the present invention, since the packing member is attached to the guide rail for slidably guiding the water gate, and the seesaw operating plates are positioned at both the upper and lower sides of the water gate at the closed position of the water gate, The seesaw operation plate on the upper side presses the water gate so that the water seal and the packing member are completely in contact with each other so that the water can be completely blocked.The seesaw operation plate lifts the water gate before opening the water gate, As it can be discharged, it can purify the river water, and it is moved to open the waterway in the state of lifting the water gate, so that it can move freely without interference of the packing member, and foreign matter because the guide rail is formed to protrude upward. There is also an advantage that you do not have to worry about this guide rail.

In addition, an inlet is formed in the upper part of the water reservoir, an outlet is formed in the lower part of the discharge side of the water gate, and a discharge passage in a zigzag is formed in the inner space of the water gate to maintain a low level even when the water gate is closed. In addition, the fish can move in the order of the outlet, the discharge passage, the inlet in order to restore or maintain the ecosystem as the fish can move upstream.

Claims (9)

A water channel 11 is formed between the support structures 10 on both sides, and the guide rails 12 are respectively installed on the support structures 10 on both sides, and the water gate 20 mounted on the guide rails 12 is guided. The opening and closing cylinder 30 is rotatably connected, and the opening and closing cylinder 30 is fixed to one side of the support structure 10 and the water passage through the water gate 20 according to the expansion and contraction of the opening and closing cylinder 30 In the sliding gate that opens and closes (11), Each of the guide rails 12 is formed in a shape projecting toward the upper direction, and the guide member 22 is inserted into each of the guide rails 12 on both lower sides of the sluice 20 to prevent separation. It is installed in the vertical direction of the water gate 20, and the packing member 14 is attached to each of the upper sides of the waterway of the guide rail 12 to be in contact with the bottom surface of the water gate 20, and the The seesaw operation on both sides is installed on the hinge shaft 60, each of the seesaw operating plate 40, 50 to press or lift the water gate 20 while the seesaw operation, respectively, the seesaw operation plate 40 On both outer sides of the 50, the operation inclined surfaces 43 and 53 formed at the distal end portions of the piston rods 42 and 52 and the outer ends of the seesaw operating plates 40 and 50 are contacted with each other. The upper seesaw operating plate 40 of the seesaw operating plates 40 and 50 is rotated downward while The operation plate 50 fixes the two operation cylinders 41 and 51 to rotate in the upward direction, and presses the water gate 20 when the water gate 20 is closed to seal the packing member 14. And close contact between the gate 20 and, when the gate 20 is opened, the gate 20 is lifted so that the sliding action of the gate 20 is free without interference of the packing member 14. A method of constructing a sliding sluice that can form an island while having a free sliding performance, characterized in that to be made. The method of claim 1, The partitions 44 and 54 are provided to intersect with each other to the inside of each of the seesaw operation plates 40 and 50 to prevent the inflow of foreign substances and at the same time, the gap between the seesaw operation plates 40 and 50. Method of constructing a sliding sluice capable of forming an island while having a free sliding performance, characterized in that configured to maintain. The method of claim 1, The hinge shaft 60 is eccentrically positioned outward from the center of each of the seesaw operation plates 40 and 50 so that the seesaw operation plates 40 and 50 are inclined in the direction of the sluice 20 at all times. A method of constructing a sliding sluice capable of forming an esophagus while having a free sliding performance characterized by. The method of claim 1, The operation inclined surface 43 formed at the front end of the piston rod 42 of the upper operation cylinder 41 of the operation cylinders 41 and 51 is inclined downward so as to form an outer lower portion of the upper seesaw operation plate 40. Configured to be contacted, The operation inclined surface 53 formed at the front end of the piston rod 52 of the lower operation cylinder 51 of the operation cylinders 41 and 51 is configured to be inclined in an upward direction so as to form an outer upper side of the lower seesaw operation plate 50. A method of constructing a sliding sluice capable of forming an fish while having a free sliding performance, characterized in that it is configured to contact. The method of claim 1, The water gate introduction portion of each of the seesaw operating plates 40 and 50 may be guided to the space between the seesaw operating plates 40 and 50 when the water gate 20 comes into contact with the water gate 20. Constitution of a sliding sluice that can form an esophagus with free sliding performance, characterized in that guide inclined surfaces 45 and 55 inclined inwardly in the space between the seesaw operation plates 40 and 50 respectively. Way. The method of claim 1, An inlet 23 through which the water in the reservoir is introduced is formed at an upper portion of the reservoir 20, and an outlet through which the water introduced through the inlet 23 is discharged from the lower side of the discharge gate 20. 24 is formed, a discharge passage 26 in which the partition 25 is blocked in a zigzag shape is formed in the space between the inner inlet and the outlet of the water gate 20, and the discharge passage 26 receives the water pressure of the discharged water. A method of constructing a sliding sluice capable of forming an esophagus with free sliding performance, characterized in that the plurality of hydraulic pressure reducing plates for reducing and a small string (29) for helping the small wound of the fish are fixed. The method of claim 6, The pressure reducing plate is formed of a plurality of plate-type hydraulic pressure reducing plate 27 fixed at equal intervals on the upper and lower portions of the discharge passage (26) of the sliding sluice that can form the fish while having free sliding performance How to configure. The method of claim 6, The pressure reducing plate has a free-form sliding performance, characterized in that it consists of a plurality of trumpet-type hydraulic pressure reducing plate 28 fixed in the middle of the discharge passage 26 so that its large diameter portion is made to the discharge side. A method of constructing a sliding sluice that can form an island. The method of claim 1, The outer cover 81 and the inner cover 82 which are inserted in a double pipe between the water gate 20 and the opening and closing cylinder 30 are rotatable to the lower end of the water gate 20 and the fixing bracket 13, respectively. Method of constructing a sliding sluice that can form the fish while having a free sliding performance, characterized in that made to be fixed.

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