JPH0941349A - Fully collapsed device and multi-stage collapsed device for undulating gate - Google Patents

Abstract

(57) [Summary] (Modified) [Problem] A laying device that causes the gate to fully lie down when the water level of a waterway such as a river exceeds a predetermined water level, and to lay down the gate stepwise according to the water level of the waterway such as a river. provide. An opening / closing valve (10) for releasing the hydraulic pressure of a hydraulic cylinder drive unit (7) for maintaining the undulation gate (1) in an upright state to shift the undulation gate (1) to a laid state is provided, and is rotated downward to open and close the valve (10). The opening / closing operating rod 11 for opening the opening / closing opening is provided, the rotating disc 12 for rotating up and down is provided, and the rotating direction of the rotating disc 12 is provided in a direction substantially orthogonal to the rotating direction of the opening / closing operating rod 11. A locking groove 12a that locks at the hydraulic pressure release position is formed on the edge side of the rotary disk 12,
The balance weight 13 and the float 14 are hung from the above, and a total collapse device having a communication passage 16 that connects the float chamber 15 and the river 2 on the upstream side of the gate installation location is provided, and a multistage collapse device that undulates according to the water level is provided. .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gate collapse device mainly used for an undulating gate provided in a waterway such as a river, and more particularly, when the water level of the waterway such as a river exceeds a predetermined water level, the gate is completely closed. The present invention relates to a full laying device for undulating gates that lie down to open waterways such as rivers, and a multistage laying device for undulating gates that gradually folds the gates according to the water level of the waterways such as rivers.

[0002]

2. Description of the Related Art Conventionally, a waterway of a river or the like may be provided with a gate in order to dam the flow of the river in order to take in agricultural water from the river. An undulating gate that turns to and falls down is known.

An ups and downs gate is constructed by standing up the gate in a waterway such as a river to secure a planned water intake height, storing the amount of water required for water intake, and forcibly overturning the water in the event of an abnormal flood such as a flood. Used to expedite the flood drainage.

[0004]

By the way, since the undulating gate obstructs the flow of a waterway such as a river in the event of an abnormal flood such as a flood, in order to secure a downflow section of the waterway such as a river in the case of an abnormal flood such as a flood. In addition, it is necessary to detect the abnormal water level, and then to lay down the gate after the detection so that the abnormal water flow can flow down quickly.

The present invention has been made in view of the above problems and was devised to solve the problems. The object of the present invention is to detect the water level without power and to support the gate. A full sloping device for undulating gates that opens and closes the opening / closing valve of the operating circuit of the cylinder mechanism to collapse the gate, and when the water level of a waterway such as a river exceeds a prescribed water level, fully collapses the gate and opens the waterway of the river. Another object of the present invention is to provide a multistage sloping device of an undulating gate that gradually slops the gate according to the water level of a waterway such as a river.

[0006]

In order to achieve the above object, the invention of claim 1 extends a rotating shaft to the side of an undulating gate rotatably installed on the bottom of a waterway such as a river. Set up
The axis of the rotating shaft is substantially aligned with the extension line of the center of rotation of the undulating gate, and a torque arm for tilting is provided on the side surface of the rotating shaft with a certain inclination with respect to the undulating gate. , In a gate laying device in which a hydraulic cylinder driving unit for rotating a torque arm is arranged, the undulating gate is laid down by releasing the hydraulic pressure of the hydraulic cylinder driving unit that keeps the undulating gate upright via the torque arm. An opening / closing valve for shifting to the opening / closing valve is provided, and an opening / closing operating rod for pivoting downward to open the opening / closing valve is provided, and a base end side of the opening / closing operating rod is rotatably attached to the opening / closing valve in a vertically rotatable manner and rotated in a vertically rotatable manner. The rotating disc is provided, and the rotating direction of the rotating disc is provided in a direction substantially orthogonal to the rotating direction of the opening / closing operating rod, and the locking groove for locking the opening / closing operating rod rotated downward to the hydraulic pressure releasing position is provided. Formed on the edge side of the turntable,
A balance weight is provided on one side of the rotary disk with the center of rotation being sandwiched, and a float that is lifted up and down by buoyancy is hung on the other rotary disk with the center of rotation being sandwiched, and the float suspended on the rotary disk is lifted. It comprises means for providing a float chamber which can be freely accommodated, and for providing a communication passage for communicating the float chamber with a waterway such as a river on the upstream side of the gate installation location.

According to the invention of claim 2, a rotary shaft is extended to the side of an undulating gate rotatably installed on the bottom surface of a waterway such as a river, and the axis of the rotary shaft is undulating. A hydraulic cylinder that causes the torque arm to rotate by substantially aligning it with the extension line of the rotation center of the rotation axis, and projecting a tilting torque arm on the side surface of the rotation axis with a certain inclination with respect to the undulating gate. In a gate laying device with a drive unit, an on-off valve is provided to release the hydraulic pressure of the hydraulic cylinder drive unit that keeps the undulating gate through the torque arm to shift the undulating gate to the laid-down state. An opening / closing operating rod for rotating and opening the opening / closing valve is provided, and a base end side of the opening / closing operating rod is rotatably attached to the opening / closing valve in a vertically rotatable manner. Direction is approximately parallel to the rotation direction of the opening and closing operating rod A locking rod for supporting the opening / closing operating rod that rotates downward from below is provided at a position distant from the center of rotation of the rotary disc, and a balance weight is attached to the rotary disc on one side of the center of rotation. A float chamber that hangs the float that is lifted up and down by buoyancy on the other side of the rotating plate with the center of rotation sandwiched is provided, and a float chamber that accommodates the float that is suspended on the rotating plate is provided, and the float chamber and gate are installed. It comprises means for providing a communication passage that communicates with a waterway such as a river on the upstream side of the location.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described more specifically based on embodiments of the invention shown in the drawings.

Embodiment 1 of the Invention Here, FIG. 1 is an overall perspective view of a hoisting type gate and a tilting device, FIG. 2 is a schematic view of a hopping device for a hoisting type gate, and FIG. 4 is a front view of the all-tilt device, FIG. 4 is a side view of the all-tilt device of the undulating gate, FIGS. 5A and 5B are operation diagrams of the all-tilt device of the undulating gate, and FIGS. FIG. 8 is an operation diagram of the all-up-and-down device of the undulating gate.

In the figure, an ups and downs gate 1 is a gate installed in the river 2 or the like in order to stop the flow of the river 2 and take in agricultural water or the like from the river 2, and crosses the flow direction of the river 2. Installed in the direction. The undulation gate 1 normally functions to block the flow of the river 2 and to prevent the river 2 from flooding by falling when the water level exceeds a predetermined level such as during a flood.

The undulating gate 1 is constructed by vertically and horizontally arranging vertical girders and horizontal girders to form a skeleton of the gate, and a skin plate attached to the skeleton. In order to prevent water leakage from the side and lower portions of the undulating gate 1, the side watertight body 1a and the lower watertight body made of watertight rubber, a pressing plate, a mounting bracket, etc. Installed on.

The lower end of the undulating gate 1 is rotatably connected to the bottom surface of the river 2 via a pin structure 3 of a main shaft 3a and a bearing 3b. The undulating gate 1 is attached so as to lie down toward the downstream side of the river 2 with the main shaft 3a of the pin structure 3 at the lower end as the center of rotation. Further, the bottom surface of the river 2 to which the lower end of the undulating gate 1 is connected is stepped and lowered so that the water on the upstream side flows to the downstream side in a completely laid state.

On the side of the undulating gate 1, an operating device 4 for the undulating gate is provided. The operating device 4 of the undulating gate forcibly tilts the undulating gate 1 toward the downstream side of the river 2, and the fully laid-down type gate laid device 4 includes a rotating shaft 5, a torque arm 6, and a cylinder drive section. 7, a total laying mechanism 8 as the laying device 4a, and the like. Each of the components that make up the full-tilt type gate laying device 4 is housed in a housing chamber 9 that is constructed in the side wall surface of the river 2.

One end of the rotary shaft 5 is fixed to the lower side surface of the side watertight body 1a integrally attached to the end of the undulating gate 1 on the gate side. It has been extended. The axis of the rotating shaft 5 is the undulating gate 1.
Is aligned with the center of rotation of the pin structure 3 that rotatably connects the lower end of the to the bottom of the river 2. The axis of the rotating shaft 5 is in the same direction as the side surface of the undulating gate 1. The rotating shaft 5 is rotatably supported by the bearing 5a so as to be rotatable in the forward and reverse directions. Therefore, when the undulating gate 1 is tilted and rotated by the pin structure 3, the rotary shaft 5 rotates integrally with the tilting and rotation of the undulating gate 1.

A rotary shaft 5 extending laterally from the undulating gate 1.
A torque arm 6 is provided on the side surface of the. The torque arm 6 is attached at a right angle to the side surface of the rotating shaft 5. The torque arm 6 is attached to the rotary shaft 5 with a certain inclination with respect to the undulating gate 1. This constant inclination requires an angle to such an extent that the tip side surface of the torque arm 6 is pressed by the contracting piston 7a of the cylinder drive portion 7 to rotate in a state in which the undulating gate 1 is completely laid down on the downstream side A. To be done. The torque arm 6 has a concave groove formed at the tip end side, and the tip end side of the piston 7a is pivotally connected to the inside of the concave groove by pin connection.

The cylinder drive unit 7 has a structure for maintaining the undulating gate 1 in an upright state when the water level of the river 2 is below a predetermined water level. That is, due to the water pressure, a force to collapse the undulating gate 1 in the upright state to the downstream side A is exerted, so that the torque arm 6 operatively connected to the undulating gate 1 via the rotating shaft 5 also has the downstream side A. Although the rotational force to rotate the cylinder drive portion 7 acts, the piston 7a, which is extending the cylinder drive portion 7, blocks the rotation of the torque arm 6 and prevents the hoisting gate 1 from falling. .

Further, the cylinder drive unit 7 has a structure for canceling the standing maintaining state when the water level of the river 2 exceeds a predetermined water level. That is, the torque exerted by the rotational force due to the water pressure acting on the undulating gate 1 in the upright state due to the decrease in the hydraulic pressure of the expanding piston 7a that holds the torque arm 6 on the upstream side B. The undulating gate 1 is collapsed by contracting without being able to resist the pressing force from the arm 6.

Furthermore, the cylinder drive section 7 provides a driving force for raising the undulating gate 1 in the laid state. That is, the contracted piston 7a of the cylinder drive unit 7 extends to push and rotate the torque arm 6 to the upstream side B, thereby erecting the undulating gate 1 in the laid state. The cylinder drive unit 7 is arranged on the downstream side A which is the front side in the rotating direction of the torque arm 6. The cylinder drive unit 7 is installed in a storage chamber 9 formed in a side wall surface of the river 2 with its piston 7a facing the upstream side B on the rear side.

The full tilting mechanism 8 is a mechanism for releasing the hydraulic pressure of the hydraulic cylinder drive section 7 for maintaining the undulating gate 1 in the upright state via the torque arm 6 and shifting the undulating gate 1 to the upright state. Valve 10, open / close operating rod 11, turntable 12,
Locking groove 12a, balance weight 13, float 14,
It is composed of a float chamber 15 and the like.

The on-off valve 10 is provided in the middle of the flexible hose 7b for supplying hydraulic pressure to the hydraulic cylinder drive section 7. The opening / closing valve 10 is opened by the operation of an opening / closing operating rod 11 which will be described later, and releases the hydraulic pressure of the hydraulic cylinder drive unit 7 that maintains the undulating gate 1 in the upright state via the torque arm 6.

When the hydraulic pressure of the hydraulic cylinder drive unit 7 is released, the piston 7a during expansion of the hydraulic cylinder drive unit 7 is opened.
Cannot contract the rotational moment of the undulating gate 1 to the downstream side A due to water pressure, and contracts. By contracting the piston 7a during the expansion of the hydraulic cylinder drive unit 7, the undulating gate 1 can be shifted to the laid state. A check valve, for example, is used as the opening / closing valve 10.

The open / close operating rod 11 is for opening / closing the open / close valve 10, is formed of an elongated rod-like body, and is attached so as to open downward to open the open / close valve 10. That is, the base end of the opening / closing rod 11 is attached to the lower portion of the opening / closing valve 10 so as to be vertically rotatable.

A balance weight 11a is mounted in the middle of the open / close operating rod 11, and the balance weight 11a can be used to adjust the rotational moment of downward rotation about the base end side of the open / close operating rod 11 as the center of rotation. It is like this. That is, by adjusting the weight of the balance weight 11a, or by adjusting the distance of the balance weight 11a from the base end side of the opening / closing operation rod 11, it is possible to adjust the downward rotating moment of the opening / closing operation rod 11. It has become.

A cylindrical sliding roller 11b is externally mounted around the side peripheral surface of the opening / closing operation rod 11 near the front end thereof so as to rotate in the forward and reverse directions. The sliding roller 11b is a turntable 12 described later.
Is attached to the side peripheral surface of the opening / closing actuating rod 11 at a position where it is locked in the locking groove of the rotating disk 12, and makes contact with the outer peripheral surface of the rotating disk 12, which spins on the outer surface of the rotating disk 12. The force in the left-right direction acting on the opening / closing rod 11 is released by friction.

The turntable 12 is rotated to the left or right side by utilizing the change in the balance between the balance weight 13 and the float 14, and locks the downward opening / closing operating rod 11 at the hydraulic pressure releasing position. It is a thing. The rotating plate 12 is formed with a locking groove 12a for locking the sliding roller 11b of the opening / closing operating rod 11 which is rotated downward. Locking groove 12
The a is formed as an elongated U-shaped notch that is curved in an oblique direction slightly deviated from the center of rotation from a predetermined position on the outer peripheral surface of the turntable 12.

The balance weight 13 and the float 1 are provided at predetermined locations on the outer peripheral surface of the turntable 12 where the locking grooves 12a are formed.
4 is a position closer to the mounting side of the float 14 than the center of the arcuate outer peripheral surface when 4 is balanced. That is, the float 14 receives buoyancy and becomes lighter, and while the turntable 12 rotates toward the balance weight 13, the locking groove 12
a is configured to appear at the uppermost position of the rotating turntable 12, and the sliding roller 11b portion of the opening / closing actuating rod 11 that is always provided on the uppermost position of the turntable 12 appears at the uppermost position. It is adapted to fall into the groove 12a and be locked.

The turntable 12 is mounted so as to rotate forward and backward in a direction orthogonal to the axial center direction of the opening / closing operating rod 11. That is, the turntable 12 is attached such that the axis of the rotary shaft thereof is parallel to the axis of the opening / closing operation rod 11.
In addition, the rotary table 12 is mounted so that the shaft center of the turntable 12 is located directly below the shaft center line of the opening / closing operation rod 11.

A 180-degree fan-shaped semi-circular disk is used as the rotary disk 12, and a rotary shaft 12b is attached to the center of the semi-circular circle of the rotary disk 12. The rotary shaft 12b of the rotary disk 12 is rotatably supported by a vertically mounted bearing plate 12c so as to rotate in the forward and reverse directions. Rotating shaft 12b on bearing plate 12c
Semi-circular turntable 12 that is rotatably supported in the forward and reverse directions via
Is mounted at a height such that the outer peripheral surface of the uppermost end thereof abuts the lower surface of the opening / closing operating rod 11 in the horizontal state. That is, the rotary disc 12 is mounted at a height such that the open / close operating rod 11 is horizontal when the open / close operating rod 11 is not locked in the locking groove 12a, that is, in contact with the outer peripheral surface of the rotary disc 12. ing.

A guide plate 12c is formed on the bearing plate 12c, on which the turntable 12 is rotatably supported in the forward and reverse directions via a rotary shaft 12b, downward from its upper end. Bearing plate 12
c is higher than the turntable 12, and this guide groove 12d
The tip end side of the opening / closing operating rod 11 is inserted from above, and the opening / closing operating rod 11 is mounted in the guide groove 12d so as to rotate in the vertical direction. The open / close operating rod 11 is prevented from swinging in the left-right direction by the guide groove 12d. The groove depth of the guide groove 12d is formed to a depth that does not hinder the opening / closing operation rod 11 from rotating downward and entering the locking groove 12a.

The balance weight 1 is provided on one side of the rotary disk 12 with the rotary shaft 12b serving as the center of rotation thereof being sandwiched therebetween.
3 is provided, and the float 14 is suspended by the chain 14a on the other side with the rotating shaft 12b serving as the center of rotation interposed therebetween. The balance weight 13 and the float 14 have the same weight, and the balance weight 13 and the float 14 on the left and right keep a balance when the float 14 is not floating on the water surface, that is, in the state of being suspended in the air. Therefore, the turntable 12 is held in a stopped state in which it does not rotate right and left.

The float 14 has a structure in which the inside is hollow or is made of a material having a specific gravity smaller than that of water, and floats above the water surface to raise the water level by buoyancy, and when the water level falls, it descends in conjunction with the water level. Has become. Undulating gate 1
The length of the chain 14a for suspending the float 14 is adjusted so that the float 14 is suspended in the air and the buoyancy does not act when the water level on the upstream side B of the installation position is below a predetermined water level.

The float chamber 15 is connected to the turntable 12 by the chain 1
It is a chamber for accommodating the float 14 suspended by 4a so that it can be raised and lowered, and is formed from a vertically extending space. Below the float chamber 15, a communication passage 16 that connects the float chamber 15 and the upstream side B where the undulating gate 1 is installed.
Is provided. By this communication passage 16, the water level of the float chamber 15 is always the same as the water level of the upstream side B where the undulating gate 1 is installed, and when the water level of the upstream side B changes, the water level of the float chamber 15 also changes in conjunction with this. It will be.

Due to the fluctuation of the water level in the float chamber 15, buoyancy acts on the float 14 in the float chamber 15. That is, when the water level rises, buoyancy begins to act on the float 14 suspended in the air, the weight on the side of the float 14 becomes lighter, the balance of the weight with the balance weight 13 is broken, and the turntable 12 rotates toward the balance weight 13 side. Move. Then, when the locking groove 12a of the rotating turntable 12 comes to a position directly below the opening / closing operating rod 11, the opening / closing operating rod 11 rotates downward by its own weight to enter the locking groove 12a and is locked. The opening / closing valve 10 is opened by the downward rotation of the operating rod 11 and the hydraulic pressure of the cylinder drive unit 7 is released.

Next, the operation based on the configuration of the first embodiment of the present invention will be described below. When the water level on the upstream side B of the installation location of the undulating gate 1 becomes higher than a predetermined water level at the time of flood and it is necessary to collapse the undulating gate 1 to quickly discharge a large amount of water, the undulating gate 1 will be fully collapsed. By the action of, the robot will automatically fall all over toward the downstream side A.

That is, the upstream side B of the installation location of the undulating gate 1
When the water level of the water becomes higher than the predetermined water level, the upstream side B and the communication passage 1
The water level in the float chamber 15 communicating through 6 also rises. When the water level in the float chamber 15 rises, the float chamber 1
The float 14 suspended in 5 starts to exert buoyancy due to the rising water level. When buoyancy acts on the float 14, the float 14 becomes lighter, and the balance weight 13 that keeps balance with the weight of the float 14 suspended in the air is
It is relatively heavier than the float 14 on which buoyancy acts,
The balance between the two is broken.

When the balance between the two is broken and the balance weight 13 side becomes relatively heavy, the turntable 12 starts to rotate toward the balance weight 13 side. An engaging groove 12a is formed on a part of the outer peripheral surface of the rotating turntable 12, and when the engaging groove 12a is rotated to a position directly below the opening / closing operating rod 11, the opening / closing operating rod 11 is opened. The sliding roller 1 of the opening / closing operation rod 11 rotates downward by its own weight with the base end side as a fulcrum.
1b is the guide groove 12d of the bearing plate 12c at the mounting location.
Along the direction, it falls into the locking groove 12a and is locked.

When the open / close operating rod 11 is rotated downward and locked in the locking groove 12a, the open / close valve 10 is opened by the downward rotation of the open / close operating rod 11 so that the hydraulic pressure of the cylinder drive unit 7 is released. Open. At this time, the turntable 12 has the locking groove 1
The open / close operating rod 11 sandwiched between the guide groove 12a and the guide groove 12d prevents the balance weight 13 from rotating toward the balance weight 13 and is in a stopped state.

In the cylinder drive section 7, when the hydraulic pressure is released, the piston 7a in the expanded state, which presses and holds the undulating gate 1 in the standing state against the rotational moment of the torque arm 6, releases the hydraulic pressure. The pressing force disappears, the rotational moment of the torque arm 6 cannot be resisted, and the piston 7a in the expanded state begins to contract, and the torque arm 6 begins to rotate toward the downstream side A due to the rotational moment.

Interlocking with the rotation of the torque arm 6, the rotary shaft 5 is also rotated in the same direction, and by the rotation of the rotary shaft 5, the undulating gate 1 to which one end of the rotary shaft 5 is connected. By rotating in the same direction, that is, on the downstream side A, the undulating gate 1 falls and the river 2 is completely opened. Since the river 2 has no gate that prevents the flow of water due to the collapse of the undulation gate 1, the water of the river 2 on the upstream side B of the installation location of the undulation gate 1 flows toward the downstream side A, and the water level on the upstream side B Therefore, it is possible to prevent the flood of the river 2 on the upstream side B from being inundated.

When the water level of the river 2 on the upstream side B of the installation location of the undulating gate 1 becomes below a predetermined water level, there is no fear of flooding of the river 2, and when the undulating gate 1 in the collapsed state is to be erected, a turntable is used. The opening / closing operation rod 11 that has been locked in the locking groove 12a of 12 is pushed up and removed from the locking groove 12a. When the open / close operating rod 11 is pushed up to a horizontal state, the open / close valve 1
0 is closed, and the hydraulic pressure generated by the operating device 4 is guided to the cylinder drive portion 7 without flowing around by the laying device 4a,
The piston 7a is extended. After the extension of the piston 7a, if the on-off valve 10 of the fall device 4a is kept closed, the hydraulic pressure of the cylinder drive unit 7 is maintained and the extended piston 7a resists the rotational moment of the torque arm 6. It will be.

That is, when the piston 7a is extended, the tip of the piston 7a contacts the upper side surface of the torque arm 6,
The torque arm 6 is pressed to the upstream side B. Then, the torque arm 6 rotates to the upstream side B by the piston 7a that extends while pressing. The rotary shaft 5 is rotated in the same direction in conjunction with the rotation of the torque arm 6, and the rotary gate 5 is also rotated in the same direction by the rotation of the rotary shaft 5. That is, the undulating gate 1 rises up by rotating to the upstream side B, and the upstream side B of the undulating gate 1 is completely closed. Thereby, the outflow of water on the upstream side B of the undulating gate 1 is blocked, and the amount of water required for water intake can be stored in the upstream side B of the installation location of the undulating gate 1.

[Embodiment 2] Here, FIG. 7 is a schematic view of a multistage laying device for an undulating gate, FIG. 8 is a side view of a multistage laying device for an undulating gate, and FIG. FIG. 10 is a front view of the multistage laying device, FIG. 10 is an operation diagram of the multistage laying device of the undulating gate, and FIG. 11 is an action diagram of the multistage laying device of the undulating gate.

The second embodiment of the present invention is a multistage laying mechanism 2 instead of the full laying mechanism 8 of the first embodiment of the invention.
2 are used. The other configurations are similar to those of the first embodiment of the present invention, and therefore, the same reference numerals are given to the same configurations and the description thereof will be omitted.

On the side of the undulating gate 1, an undulating gate operating device 4 is provided. Control device for undulating gate 4
Is a device for forcibly tilting the undulating gate 1 toward the downstream side of the river 2 in multiple stages, and the operating device 4 of the undulating gate includes a rotating shaft 5, a torque arm 6, a cylinder drive unit 7, and a laying device 4a. It is composed of a multistage laying mechanism 22 and the like. Each of the parts constituting the operating device 4 of these undulating gates is stored in a storage chamber 9 built in one side wall surface of the river 2.

The multi-stage tumbling mechanism 22 releases the hydraulic pressure of the hydraulic cylinder drive unit 7 for maintaining the undulating gate 1 in the upright state via the torque arm 6 to shift the undulating gate 1 to the laid state in multiple stages. Then, the open / close valve 10, the open / close operating rod 11,
It is composed of a turntable 23, a locking rod 23a, a balance weight 13, a float 14, a float chamber 15, and the like.

The turntable 23 is rotated forward or backward with respect to the front opening / closing valve 10 by utilizing the change in the balance between the balance weight 13 and the float 14, and is opened and closed stepwise downward. The operating rod 11 is locked to gradually release the hydraulic pressure of the cylinder drive unit 7. On the side surface of the turntable 23, a locking rod 23a is provided so as to project and hold the tip end side portion of the opening / closing operation rod 11 which is rotated downward and which is always supported from below. A cylindrical roller is used for the locking rod 23a, and the locking rod 23a is attached to the side surface of the rotating disk 23 so as to be rotatable in the forward and reverse directions.

The turntable 23 is mounted so as to rotate forward and reverse in a direction parallel to the axial direction of the opening / closing rod 11. The turntable 23 is different in angle from the turntable 12 of the first embodiment. There is. That is, the turntable 23 is mounted so that the axis of the rotary shaft 23b is at right angles to the axis of the opening / closing rod 11, and is located directly below the axis of the opening / closing rod 11. Locking rod 23 provided on the side surface of 23
It is attached so that the axis of a is orthogonal.

A 180 ° fan-shaped semi-circular disc is used as the rotary disc 23, and a rotary shaft 23b is attached to the center of the semi-circular circle of the rotary disc 23. A rotary shaft 23b of the rotary disk 23 is rotatably supported by a bearing 23c such that it can rotate forward and backward. That is, the turntable 23 has the locking rod 23a of the turntable 23.
It is mounted at a height such that the open / close operating rod 11 is horizontally supported in a state where the open / close operating rod 11 does not open the open / close valve 10.

Similar to Embodiment 1 of the present invention, the turntable 23 is provided with a balance weight 13 on one side of the rotary shaft 23b, which is the center of rotation, and also serves as the center of rotation. The float 14 is suspended by a chain 14a on the other side of the rotary shaft 23b. The balance weight 13 and the float 14 have the same weight, and the balance weight 13 and the float 14 on the left and right keep a balance when the float 14 is not floating on the water surface, that is, in the state of being suspended in the air. Therefore, the turntable 23 is held in a stopped state in which it does not rotate right and left.

The balance weight 13, the float 14, the chain 14a, and the float chamber 1 in which the float 14 is housed
5 and the structure of the communication passage 16 are the same as those in the embodiment of the invention.
1 and the description is omitted.

When the water level in the float chamber 15 rises, buoyancy begins to act on the float 14 suspended in the air, and the float 14 is suspended.
The weight on the side becomes lighter, the balance of the weight with the balance weight 13 is broken, and the turntable 23 becomes the balance weight 13.
Pivot to the side. Then, the locking rod 2 of the rotating turntable 23
By changing the height of 3a, the opening degree of the opening / closing valve 10 is adjusted by the downward rotation angle of the opening / closing operating rod 11 supported by the locking rod 23a, and the hydraulic pressure release state of the cylinder drive unit 7 is also adjusted. Will be adjusted. As a result, the piston 7a of the cylinder drive unit 7 that opposes the torque arm 6
By adjusting the amount of contraction, the fall angle of the undulating gate 1 can be controlled in multiple stages.

Next, the operation based on the configuration of the second embodiment of the present invention will be described below. When the water level on the upstream side B of the installation location of the undulating gate 1 becomes higher than a predetermined water level at the time of flood and it becomes necessary to collapse the undulating gate 1 to immediately discharge a large amount of water, the undulating gate 1 is provided with a multi-stage laid mechanism 22.
By the action of, the robot automatically falls on the downstream side A in multiple stages.

That is, the upstream side B of the installation location of the undulating gate 1
When the water level of the water becomes higher than the predetermined water level, the upstream side B and the communication passage 1
The water level in the float chamber 15 communicating through 6 also rises. When the water level in the float chamber 15 rises, the float chamber 1
The float 14 suspended in 5 starts to exert buoyancy due to the rising water level. When buoyancy acts on the float 14, the float 14 becomes lighter, and the balance weight 13 that keeps balance with the weight of the float 14 suspended in the air is
It is relatively heavier than the float 14 on which buoyancy acts,
The balance between the two is broken.

When the balance between the two is broken and the balance weight 13 side becomes relatively heavy, the turntable 23 starts to rotate toward the balance weight 13 side. A locking rod 23a is attached to the side surface of the rotating turntable 23 so as to project therefrom, and this locking rod 23a also turns together with the turning turntable 23. A part of the tip end side of the opening / closing operation rod 11 is always supported by the rotating locking rod 23a, and the rotating locking rod 23a is rotated.
The mounting position of a becomes lower as it rotates.

As a result, the tip end side of the opening / closing operation rod 11 supported by the locking rod 23a also lowers, the opening / closing operation rod 11 rotates downward by a certain angle, and the base end side of the opening / closing operation rod 11 opens and closes. The valve 10 is slightly opened, and the hydraulic pressure of the cylinder drive unit 7 is slightly released. When the hydraulic pressure is released a little, the piston 7a
As the hydraulic pressure is released, it cannot withstand the rotational moment of the torque arm 6 and contracts, and the torque arm 6 rotates toward the downstream side A by an angle θ ₁ corresponding to the contracted amount of the piston 7a.

Interlocking with the rotation of the torque arm 6, the rotary shaft 5 is also rotated in the same direction, and by the rotation of the rotary shaft 5, also the undulating gate 1 to which one end of the rotary shaft 5 is connected. In the same direction, that is, by rotating by θ ₁ angle to the downstream side A, the undulating gate 1 falls down by θ ₁ angle and opens the river 2 a little. Due to the θ ₁ angle of the undulation gate 1, the water at the high water level position of the river 2 on the upstream side B where the undulation gate 1 is installed flows toward the downstream side A, and the water level on the upstream side B can be lowered. The flood of the river 2 on the upstream side B can be prevented.

Further, the undulating gate 1 having only the above θ ₁ angle
When the water level of the river 2 on the upstream side B of the installation location of the undulation gate 1 further rises, the float 14 on which the buoyancy in the float chamber 15 acts increases due to the water level rise. In response to the rise of the float 14, the turntable 23 further turns to the balance weight 13 side.

When the turntable 23 further rotates toward the balance weight 13, the locking rod 2 attached to the turntable 23 is attached.
The mounting position of 3a is further lowered, and the tip end side of the opening / closing operating rod 11 supported by the locking rod 23a is further rotated downward by that amount to further open the opening / closing valve 10.

When the on-off valve 10 is further opened, the hydraulic pressure of the cylinder drive section 7 is further released. The piston 7a cannot further withstand the rotational moment of the torque arm 6 by the amount that the hydraulic pressure is further released and further contracts, and the torque arm 6 is further contracted by the angle θ ₂ corresponding to the amount of further contraction of the piston 7a on the downstream side A. Further turn toward.

Interlocking with the rotation of the torque arm 6, the rotary shaft 5 is also rotated in the same direction, and by the rotation of the rotary shaft 5, also the undulating gate 1 to which one end of the rotary shaft 5 is connected. In the same direction, that is, by further rotating by θ ₂ angle to the downstream side A, the undulating gate 1 is rotated by θ
Proceed further by _two angles and open River 2 further. When the undulating gate 1 further falls, the water at the high water level position of the river 2 on the upstream side B where the undulating gate 1 is installed further flows toward the downstream side A.

In this way, in response to the fluctuation of the water level,
The undulating gate 1 can be laid down in multiple stages. Then, the undulating gate 1 can be laid down in multiple stages in response to fluctuations in the water level to lower the water level on the upstream side B and prevent the flooding of the river 2 on the upstream side B.

When the water level of the river 2 on the upstream side B of the installation location of the undulation gate 1 becomes a predetermined water level or less and there is no fear of flooding of the river 2 and the undulation gate 1 in the collapsed state is erected, a cylinder drive is performed. The piston 7a of the part 7 is extended.
When the piston 7a is extended, the tip of the piston 7a contacts the upper side surface of the torque arm 6 and presses the torque arm 6 toward the upstream side B. Then, the torque arm 6 rotates to the upstream side B by the piston 7a that extends while pressing.

Interlocking with the rotation of the torque arm 6, the rotary shaft 5 is also rotated in the same direction, and by the rotation of the rotary shaft 5, also the undulating gate 1 to which one end of the rotary shaft 5 is connected. The undulating gate 1 rises by rotating in the same direction, that is, the upstream side B, and the upstream side B of the undulating gate 1 is completely closed. As a result, the outflow of water on the upstream side B of the undulating gate 1 is blocked, and the amount of water required for water intake can be stored in the upstream side B of the installation location of the undulating gate 1.

At this time, if the water level on the upstream side B becomes low,
The buoyancy acting on the float 14 disappears, and the lighter float 14 becomes heavier again. Therefore, the turntable 23, which has been rotated to the balance weight 13 side, is reversely rotated to the float 14 side and is in a balanced state. Return to. Turntable 23
Is rotated to the side of the float 14 in reverse, so that the locking rod 2
The mounting position of 3a rises, and the tip end side of the opening / closing operation rod 11 supported by the ascending lock rod 23a pivots upward and returns to the horizontal state. When the open / close operating rod 11 returns to the horizontal state, the open / close valve 10 is closed, and the hydraulic pressure generated by the operating device 4 is guided to the cylinder drive unit 7 without being circulated by the fall device 4a. Therefore, the piston 7a after extension resists the rotational moment of the torque arm 6.

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

[0066]

As is clear from the above description, according to the sloping device for undulating gates of the first aspect of the present invention, when the water level on the upstream side of the undulating gate exceeds the set water level, it is connected to the upstream side. Similarly, the water level of the float chamber communicating through the passage also rises, and the float suspended in this float chamber is lightened by the buoyancy due to the elevated water level.
The balance weight side of the turntable, which balances the weight of the suspended float, loses balance with the float lightened by buoyancy, and the turntable rotates to the balance weight side, forming a part of the outer circumference of the rotating turntable. When the formed locking groove comes to a position directly below the tip end side of the opening / closing operation rod, the tip end side of the opening / closing operation rod rotates downward and falls into the locking groove. By rotating the tip side of the opening / closing actuating rod downward, the opening / closing valve that opens / closes the hydraulic pressure of the cylinder drive is opened, the hydraulic pressure of the cylinder drive is released, and the hydraulic pressure acting on the undulating gate of the torque arm is used. The extended piston that held the undulating gate in the upright state against the rotational moment loses the pressing force due to the release of hydraulic pressure, and cannot contract the rotational moment of the torque arm, causing the extended piston to contract. First, the torque arm starts to rotate toward the downstream side due to the rotational moment caused by the water pressure acting on the upright undulating gate, and in conjunction with the rotation of the torque arm, the rotating shaft is rotated in the same direction to rotate. Due to the rotation of the moving shaft, the undulating gate, to which one end of the rotating shaft is connected, also rotates in the same direction, that is, on the downstream side, and the undulating gate is completely laid down to completely open a waterway such as a river. Due to the full collapse of the undulating gate, there is no gate to prevent the flow of water in the waterways such as rivers, so the water in the waterways such as rivers upstream of the location where the undulation gates are installed flows toward the downstream side. In this way, when the water level on the upstream side of the undulating gate exceeds the set water level, the undulating gate can be completely laid down automatically and automatically to lower the water level on the upstream side. Can prevent flooding.

Further, according to the multistage laid device of the undulating gate according to the invention of claim 2, when the water level on the upstream side of the undulating gate exceeds the set water level, the float chamber of the float chamber communicating with the upstream side through the communication passage is formed. The water level rises as well, and the float suspended in this float chamber becomes buoyant due to the elevated water level and becomes lighter, and the balance weight side of the turntable that balances the weight of the float suspended in the float chamber has buoyancy. The balance with the lightened float is broken, the turntable rotates to the balance weight side, and when the locking rod protruding from the side of the rotating turntable moves in the lower direction due to rotation,
The tip end side of the opening / closing operation rod locked to the locking rod also rotates downward in conjunction with the movement of the locking rod. By rotating the tip side of this opening / closing actuating rod downward, the on-off valve that opens and closes the hydraulic pressure of the cylinder drive part is opened a little, and a part of the hydraulic pressure of the cylinder drive part is released, and the undulating gate of the torque arm is opened. The piston in the extended state that pressed and held the undulating gate in the upright state against the rotational moment due to the acting water pressure,
The partial release of hydraulic pressure causes the torque arm to withstand the rotational moment due to the water pressure acting on the undulating gate in the upright state of the torque arm, and the torque arm contracts, and the torque arm corresponds to the amount of contraction of the piston. Rotate toward the downstream side by the angle that The rotation shaft is rotated in the same direction in conjunction with the rotation of the torque arm, and the rotation gate also causes the undulating gate to which one end of the rotation shaft is connected in the same direction, that is, in the downstream side. The undulating gate turns down by a certain angle and turns a certain angle to open a waterway such as a river. Due to the undulation of the undulating gate by a certain angle, the water at the high water level position of the waterway such as a river on the upstream side of the installation location of the undulating gate flows toward the downstream side. When the water level on the upstream side further rises, the turntable further rotates to the balance weight side, the position of the locking rod further lowers, and the tip side of the opening / closing operating rod moves further downward in conjunction with the movement of the locking rod. By rotating, the on-off valve is further opened, and the hydraulic pressure of the cylinder drive part is further reduced. As a result, the piston of the cylinder drive unit cannot further resist the rotational moment of the torque arm, and further contracts, and the torque arm rotates toward the downstream side to tilt the undulating gate further toward the downstream side. In this way, when the water level on the upstream side of the undulating gate exceeds the set water level, it is possible to lower the water level on the upstream side by automatically and gradually tumbling the undulating gate steplessly and automatically. It has extremely new and beneficial effects such as the prevention of flooding of waterways such as rivers.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an undulating gate and a laying device showing an embodiment of the present invention.

FIG. 2 is a schematic view of an all-up-and-down device for a hoisting type gate according to the embodiment of the present invention.

FIG. 3 is a front view of the fully retracting device for the undulating gate according to the embodiment of the present invention.

FIG. 4 is a side view of the fully retracting device for the undulating gate according to the embodiment of the present invention.

FIG. 5 (A) is a side view of the operation of the all-up / down device for the undulating gate showing the embodiment of the present invention. FIG. 3B is a front view of the operation of the all-tilt device for the undulating gate according to the embodiment of the present invention.

FIG. 6 (A) is a side view of the operation of the all-up / down device for the undulating gate showing the embodiment of the present invention. FIG. 3B is a front view of the operation of the all-tilt device for the undulating gate according to the embodiment of the present invention.

FIG. 7 is a schematic view of a multistage sloping device for a swelling type gate showing an embodiment of the present invention.

FIG. 8 is a side view of a multistage tumbling device for an undulating gate showing an embodiment of the present invention.

FIG. 9 is a front view of a multistage tumbling device for an undulating gate showing an embodiment of the present invention.

FIG. 10 is an operation view of the multistage sloping device for the undulating gate showing the embodiment of the present invention.

FIG. 11 is an operation diagram of a multistage sloping device for an undulating gate showing an embodiment of the present invention.

[Explanation of symbols]

 1 undulating gate 1a side watertight body 2 river 3 pin structure 3a main shaft 3b bearing 4 undulating gate operating device 4a tilting device 5 rotating shaft 5a bearing 6 torque arm 7 cylinder drive unit 7a piston 7b flexible hose 8 total tilting mechanism 9 Storage chamber 10 Open / close valve 11 Open / close actuating rod 11a Balance weight 11b Sliding roller 12 Rotating disc 12a Locking groove 12b Rotating shaft 12c Bearing plate 12d Guide groove 13 Balance weight 14 Float 14a Chain 15 Float chamber 16 Communication path 22 Multi-stage collapse mechanism 23 Rotating plate 23a Locking rod 23b Rotating shaft 23c Bearing

Claims (2)

[Claims] 1. A rotary shaft is extended to the side of an undulating gate rotatably installed on the bottom of a waterway such as a river, and the axis of the rotary shaft is on an extension line of the rotary center of the undulating gate. To match
In a gate collapse device, a torque arm for collapse is projected on a side surface of a rotating shaft with a certain inclination with respect to an undulating gate, and a hydraulic cylinder drive unit for rotating the torque arm is arranged. An opening / closing valve that opens the opening / closing valve by opening the opening / closing valve by opening the opening / closing valve by releasing the hydraulic pressure of the hydraulic cylinder drive part that keeps the rising / lowering gate in the upright state via the At the same time, the base end side of the opening / closing operating rod is attached to the opening / closing valve so as to be vertically rotatable.
A rotating disc that rotates up and down is provided, and the rotating direction of the rotating disc is provided in a direction substantially orthogonal to the rotating direction of the opening / closing operating rod, and the opening / closing operating rod rotated downward is locked at the hydraulic pressure release position. A locking groove is formed on the edge side of the rotary disk, and a balance weight is provided on the rotary disk on one side with the center of rotation interposed therebetween.
A float chamber that hangs up and down by buoyancy is hung on the other side of the rotating disk across the center of rotation, and a float chamber is installed to accommodate the float that is suspended on the rotating disk. An all-up / down device for undulating gates, characterized by having a communication passage that connects to the waterway of the river on the side. 2. A rotating shaft is extended to the side of an undulating gate rotatably installed on the bottom of a waterway such as a river, and the axis of the rotating shaft is on an extension line of the center of rotation of the undulating gate. To match
In a gate collapse device, a torque arm for collapse is projected on a side surface of a rotating shaft with a certain inclination with respect to an undulating gate, and a hydraulic cylinder drive unit for rotating the torque arm is arranged. An opening / closing valve that opens the opening / closing valve by opening the opening / closing valve by opening the opening / closing valve by releasing the hydraulic pressure of the hydraulic cylinder drive part that keeps the rising / lowering gate in the upright state via the At the same time, the base end side of the opening / closing operating rod is attached to the opening / closing valve so as to be vertically rotatable.
Provided is a turntable that rotates up and down, the rotation direction of the turntable is provided in a direction substantially parallel to the rotation direction of the opening / closing operation rod, and a locking rod that supports the opening / closing operation rod that rotates downward from below is provided. It is provided so as to project from a position away from the center of rotation of the turntable, and a balance weight is provided on one side of the turntable with the center of rotation being sandwiched between the turntable and the other side of the turntable by buoyancy. A float chamber is provided for suspending the float, and the float suspended on the turntable is installed so that it can be moved up and down, and a communication passage for communicating the float chamber with a waterway such as a river upstream of the gate installation location is provided. A characteristic multi-step sloping device with undulating gates.