JP4388494B2 - Automatic tide door equipment at Rikusu - Google Patents

Description

  The present invention relates to a tide door device for a shore that is installed on a shore of a tide embankment near a coast or a river mouth and opens and closes a shore opening.

The shore of the tide embankment is normally used as an open passage, and is closed by a movable tide door during storm surges, storm surges, or tsunamis to prevent intrusion into the tide embankment. Patent Document 1 discloses a horizontal pull type tide door. In the land with a relatively large opening width, a horizontal pulling type movable tide door shown in FIG. 11 has been installed. This tide door is a type in which the door body 11 moves laterally by a wheel on a rail 13 laid in a shape crossing the passage at the lower part of the passage, and is usually stored in the side of the passage as shown in FIG. At the time of closing, the opening is closed by moving across the passage as shown in FIG.
JP 2004-44225 A

  The opening / closing operation of the tide door is generally performed by operating a moving device provided to the door body 11, and a certain time is required for the opening / closing operation. Moreover, the operation | work which fixes the door body 11 and the door stop 12 for ensuring a water stop function with a volt | bolt etc. is required after closure.

  The door body 11 is supported by a door body supporting guide roller 14 in the middle of the closing operation. However, the supporting form immediately before closing is weak, and it is necessary to pay attention to the operation against strong winds.・ There is a structural problem that smooth opening and closing is difficult if there is a boulder.

  For this reason, special caution is required for operations during strong winds such as typhoons, and it is difficult to secure the required operation time especially when tsunamis are predicted in recent years.

  Therefore, the present invention provides a shore tide door facility that is easy to open and close and that does not require human manipulation in an emergency.

  The present invention relates to a tide tide door facility for closing and opening an opening portion of a land ridge installed on a coastal levee or a tide embankment near an estuary, and a door body storage chamber provided at a lower portion of a passage in the shore opening. In addition, a floating-type door body is installed using a lower-end hinge system, and the land is closed and opened by the standing / falling action of the floating-type door body, and the same side as the center of rotation of the door body is located on the side of the floating-type door body. A double-rod hydraulic cylinder with a drive shaft attached to the core, penetrating the drive shaft into the device chamber provided on the side of the passage, and solidifying the drive arm, with the tip of the drive arm and the tip of the rod being pin-coupled. The hydraulic circuit that is arranged in a swinging manner and that connects the hydraulic cylinder, the hydraulic pump, and the hydraulic oil tank has a directional control valve that switches the hydraulic oil supplied from the hydraulic pump to the extending direction or the contracting direction of the double rod hydraulic cylinder, Hydraulic fluid by hydraulic pump A check valve that shuts off the hydraulic oil flow from the hydraulic cylinder side to the hydraulic oil tank is arranged except when supplying oil, and the rod rod hydraulic cylinder can be freely extended or contracted except when the hydraulic pump is supplied. A bypass valve that opens and closes the circuit is arranged in the bypass circuit, and the bypass circuit is closed and the double rod hydraulic cylinder is expanded and contracted by supplying hydraulic oil from the hydraulic pump. It is characterized in that the door body has a function of automatically raising and lowering by the water pressure acting on the door body by opening and bypassing the door body and opening the bypass circuit when the hydraulic pump is stopped.

  The present invention provides an automatic tide door equipment having a function and rigidity that can be used as a passage to use the upper surface of the door body on the mechanism as a passage floor when the floating door body falls and the land is opened, Stands up without swinging due to tsunami, and has an automatic operation control function that stably and automatically closes by water pressure without requiring human power and operation in the event of a high wave or tsunami, and at the same time only standing up , And the lodging operation has a function to be performed by manual operation, and the safety of the equipment can be improved.

  Embodiments of the present invention will be described below.

  1 to 6 show an outline of the equipment. In each figure, 1 is a tide door, 1a is a door side watertight rubber, 2a is a side door, 2b is a lower door, 2c is a side device chamber, 2d is a downstream door, 2e is a lower watertight rubber, 3a is a lower support, 3b is an upper support, 4a is a water discharge pipe, 4b is a water discharge pipe screen, 5 is an auxiliary movable floor, 6 is a door support base, 7 is a drive shaft, 8 is a torque arm, 8a is a connecting pin , 9 is a double rod type hydraulic cylinder, 10 is a hydraulic cylinder bearing, 15 is an operation / control device, 40 is a tide embankment, 41 is a land wall, 42 is a door enclosure, and 43 is seawater. A indicates the inside of the bank (land) and B indicates the sea side.

  FIG. 1 is a schematic diagram of the entire facility of the present invention. FIG. 1 (a) is a state diagram in which a tide door body 1 is lying down to open a land anchor, and FIG. 1 (a) is a tide door body 1 standing upright. Then, the state diagram of closing the land anchor is shown.

  FIG. 2 shows a state diagram in which the tide door body 1 stands up and closes the opening of the ridge and prevents the seawater 43 together with the tide embankment 40 from invading the inside A of the levee.

  FIG. 3 is a view showing the installation and operation of the tide door body 1. FIG. 3A is a side sectional view of the tide door body 1 lying down and opening the land, and FIG. 3A is a tide door body. 1 shows a side sectional view in which 1 stands up and closes a landlock.

  Fig. 4 shows the arrangement position of each device. Fig. 4 (a) shows a state in which the tide door body 1 has fallen and opened the land, and Fig. 4 (a) shows that the tide door body 1 stands in the middle. Fig. 2 shows a state diagram in which the land anchor is closed from below.

  As shown in FIG. 1, this facility is divided into a tide embankment 40 and is installed in a dike opening having a land wall 41 at both ends and a door storage chamber 42 at a lower part.

  As shown in FIG. 3, the tide door body 1 is installed in the door body storage chamber 42 so as to be capable of operating up and down around the lower support 3 a. The lower support 3a is fixed to the lower door latch 2b. As shown in FIG. 3A, the tide door 1 is supported by the lower support 3a and the door support 6 when the tide door 1 is lying down. Moreover, the upper surface of the tide door body 1 forms a flat passage floor together with the downstream doorhold 2d and the auxiliary movable floor 5.

  As shown in FIG. 3 (a), when the tide door body 1 is fully upright, it is supported by the lower support 3a and the soil support 3b, and transmits the water pressure from the sea side to the structure.

  The side watertight rubber 1a attached to both sides of the door body is bonded to the side door 2a and the lower watertight rubber 2e attached to the lower door 2b is pressed against the lower portion of the tide door body 1 to form a watertight portion. As shown in FIG. 2, the water flow from the sea side B to the bank side A is prevented.

  The auxiliary movable floor 5 has a structure that does not interfere with the standing operation of the tide door body 1 by being tilted and moved in accordance with the standing operation of the tide door body 1.

  In addition, the door storage chamber 42 is provided with a conduit / drainage pipe 4a penetrating to the sea side. Normally, rainwater that has infiltrated the door storage chamber 42 is drained to the sea side, and the seawater 42 rises. Seawater 42 is introduced into the door housing chamber 42.

  As shown in FIG. 4A, the device room 2c integrated with the side door cover 2a of the tide door body 1 is installed on the land wall 41, and the operation / control device 15 is arranged on the side thereof. The

  As shown in FIG. 4 (a), the side watertight rubber 1a attached to the side portion of the tide door body 1 is always pressed against the side door 2a and slid so that the tide door body 1 is in operation. Always has a watertight function below the door height.

  As shown in FIG. 1 (a), the normal tide door body 1 lies down to open the land, and the upper surface of the tide door body 1 is used as a passage floor to allow passage between the bank side A and the sea side B.

  As shown in FIG. 1 (a), the tide door body 1 stands up to close the shore, and when the sea water 43 rises as shown in FIG. Inflow).

  FIG. 5 shows an outline of the entire gate machine facility, FIG. 5 (a) shows an overall configuration diagram of the machine facility, and FIG. 5 (a) shows an arrangement configuration diagram of the driving device.

  As shown in FIG. 5 (a), the door is made up of the side door 2a, the lower door 2b, the driving device room 2c, the downstream door 2d, and the auxiliary movable floor 5 (FIG. 5 (a)) on both sides. Composed.

  As shown in FIG. 5 (a), a double rod type hydraulic cylinder 9 and a torque arm 8 installed in a swinging manner by a hydraulic cylinder bearing 10 are installed in the driving device chamber 2c.

  FIG. 6 is a connection state diagram of the tide door body 1 and the driving device.

  As shown in FIG. 6, a drive shaft 7 is attached to the side of the tide door body 1 concentrically with the rotation center of the tide door body 1, a torque arm 8 is fixed to the drive shaft 7, The tips of both rod type hydraulic cylinders 9 are pin-coupled by a connecting pin 8a.

  In the connected state shown in FIG. 6, when the double rod hydraulic cylinder 9 is extended, the tide door body 1 performs an upright operation, and conversely performs a collapse operation that performs a contraction operation.

  Since the tide door body 1 of the present invention is a completely sealed box type and has a floating structure, a certain buoyancy acts in water. Therefore, when seawater is poured into the door body storage chamber 42, a certain standing operation force due to buoyancy acts on the tide door body 1.

  FIG. 7 is a control circuit diagram of the present invention. In FIG. 7, 9a is a front oil port of the double rod type hydraulic cylinder 9, 9b is the rear oil port, 16 is a switching valve, 17 is a switching valve, 18 is a flow control valve, 19 is a check valve, and 20 is flow control. Valve, 21 is a check valve, 22a and 22b are one-way throttle valves, 23a. 23b is a check valve with a pilot, 24 is a directional control valve, 25 is a hydraulic pump, 26 is a relief valve, 27 is a filter, 28 is a stop valve, 29 is a check valve, 30 is a relief valve, 31 is a hydraulic oil tank, 32 is a pressure gauge. The stop valve 28 is always closed.

  In the circuit of FIG. 7, by closing the switching valve 16, the double rod hydraulic cylinder 9 can be freely expanded and contracted by operating the hydraulic pump 25 and the direction control valve 24.

  In the present invention, the rod diameters before and after the double rod type hydraulic cylinder 9 are assumed to be equal, and therefore, the discharge / suction hydraulic oil amount of the double rod type hydraulic cylinder 9 during the rod expansion / contraction operation is equal.

  As shown in FIG. 8, when the switching valve 16 is opened and the switching valve 17 is closed, the hydraulic oil from the front oil port 9a to the rear oil port 9b when the double rod hydraulic cylinder 9 is extended by an external force. A flow arrow is possible. In this case, the hydraulic oil flow arrow A is controlled by the flow control valve 20.

  As shown in FIG. 9, when the switching valve 16 and the switching valve 17 are opened simultaneously, the operating oil flow arrow from the front oil port 9b to the rear oil port 9a when the double rod hydraulic cylinder 9 is contracted by an external force. It becomes possible. In this case, the hydraulic oil flow arrow A is controlled by the flow control valve 18.

  The hydraulic oil flow arrow a and the arrow i during the expansion / contraction operation by the external force action of the double rod hydraulic cylinder 9 are limited to the paths illustrated by the check valves 19 and 21 and the pilot check valves 23a and 23b.

  With the above circuit function, in this control circuit, by closing the switching valve 16, the tide door 1 is freely raised and tilted by the pump 25, and the switching valve 16 is opened and the switching valve 17 is closed. Thus, only the automatic standing operation by the water pressure of the tide door body 1 can be performed, and the tide door body 1 can be automatically erected and automatically laid down by opening both the switching valves 16 and 17.

  In a tide door facility that closes the shore against storm surges, high waves, or tsunamis, stability against strong waves is more important than an automatic opening function that responds to a drop in water level.

  In the control circuit of the present invention, the switching valve 16 is normally opened and the switching valve 17 is closed.

  When the occurrence of storm surges and high waves is predicted in advance and sufficient operation time is secured, the switching valve 16 is closed, and the tide door 1 is automatically erected by operating the direction control valve 24 and the hydraulic pump 25 to閘 Close the opening.

  The switching valve 16 and the switching valve 17 are sequentially opened in a state where it is determined that there is no danger that the sea-side water level is lowered, and the tide door body 1 is opened by an automatic overturning operation by its own weight. At this time, the tide door 1 is inclined at a speed adjusted by the flow control valve 18. After the lodging is completed, only the switching valve 17 is closed.

  When the hydraulic pressure remains in the circuit between the check valve 21 and the rear oil port 9b depending on the content of the operation, the stop valve 28 is temporarily opened to extract the hydraulic pressure in the circuit.

  FIG. 10 shows an automatic erection operation function when it is difficult to erect the tide door body 1 in advance when a tsunami or the like occurs.

  FIG. 10A shows a state in which seawater is injected into the door body storage chamber 42 through the water guide pipe 4a when the seaside water level rises with the tide door body 1 lying down. The door housing chamber 42 is closed by the tide door 1 when the tide door 1 is fully lying down.

  FIG. 10A shows a state in which the door body storage chamber 42 is filled with seawater, and thus the initial standing operation is started by the buoyancy generated by the tide door 1. By the initial standing operation of the tide door 1, the door storage chamber 42 is opened to the sea side B.

  FIG. 10C is a state diagram in which the seawater 43 rapidly rises and the tide door body 1 is further automatically erected by its hydraulic pressure.

  In the operating state of FIG. 10C, a strong water pressure acts on the tide door body 1. As a result, the tide door 1 performs a relatively fast standing operation to prevent tide infiltration.

  FIG. 10D shows a state in which the tide door body 1 is fully upright and prevents the seawater 43 from entering the levee.

  A series of automatic upright operations from FIG. 10 (a) to FIG. 10 (work) depends on the rising speed of the seawater 43, but can have a capacity of about 1 minute at the maximum by designing the amount of drainage of the tide door 1 and the like. It is possible to deal with tsunamis that reach a high speed when they arrive.

  The door body opening / closing mode of this type is also strongly influenced by the wind according to the standing of the tide door body 1.

  However, it does not pose a big problem because it can stand up by a hydraulic load that greatly exceeds the wind load at the time of automatic standing, and it can resist the wind load by a driving device at any operation.

(A) is a state diagram in which the tide door body is lying down and opening the land anchor, and (a) is a state diagram in which the tide door body is standing up and the land anchor is closed. It is a state diagram in which a tide door body stands up and closes a ridge, and both tide embankments prevent seawater from invading the inside of the levee. (A) is a side sectional view in which the tide door body is lying down to open the land anchor, and (I) is a side sectional view in which the tide door body is raised to close the land anchor. (A) is a device arrangement state diagram when the tide door body is lying down and opening the land anchor, (A) is a state diagram where the tide door body is standing upright and the land anchor is closed from below. . (A) is an overall configuration diagram of the mechanical equipment, and (A) is an arrangement configuration diagram of the driving device. It is a connection state figure of a tide door body and a drive device. It is an operation control circuit diagram. It is a control circuit diagram at the time of automatic standing operation. It is a control circuit diagram at the time of automatic lodging operation. (A) Automatic operation state Fig. 1 (Tide of the tide door body), (A) Automatic operation state Fig. 2 (Initial erection of the tide door body), (C) Automatic operation state Fig. 3 (Tide of the tide door body) FIG. 4 is an automatic operation state diagram 4 (the tide door body is fully erected). (A) is a horizontal drawing gate fully opened state figure, (a) is a horizontal drawing gate fully closed state figure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tide door 1a Side watertight rubber 2a Side door 2b Lower door 2c Side device room 2d Downstream door 2e Lower watertight rubber 3a Lower support 3b Upper support 4a Lead / drain pipe 4b Lead / drain pipe screen 5 Auxiliary movable Floor 6 Door support base 7 Drive shaft 8 Torque arm 8a Connecting pin 9 Double rod type hydraulic cylinder 9a Front oil chamber 9b of double rod type hydraulic cylinder Rear oil chamber 10 of double rod type hydraulic cylinder 10 Cylinder bearing 11 Horizontal pull gate door 12 Horizontal pulling gate door 13 Gate moving rail 14 Door support guide roller 15 Operation control device 16 Switching valve 17 Switching valve 18 Flow rate adjusting valve 19 Check valve 20 Flow rate adjusting valve 21 Check valves 22a and 22b One-way Throttle valves 23a, 23b Check valve with pilot 24 direction control valve 25 Hydraulic pump 26 Relief valve 27 Filter 28 Stop valve 29 Check valve 3 The relief valve 31 showing the hydraulic oil tank 32 pressure gauge 40 tide embankment 41 Riku閘 structural wall 42 door body storage chamber 43 sea water symbol A tide embankment inner (land side).
Symbol B Indicates the outer side of the levee (sea side).
Arrow a Hydraulic oil flow during automatic erection (cylinder extension operation) Arrow a Hydraulic oil flow during automatic overturning operation (cylinder contraction operation)

Claims (4)

In the shore tide door facility that closes and opens the opening of the shore levee or the shore levee near the river mouth,
A floating body door is installed in the door storage chamber provided in the lower part of the passageway of the land opening with a lower-end hinge method, and the land is closed and opened by the standing / slanting operation of the floating body. At the same time, the drive shaft is mounted on the side of the floating door body, concentric with the center of rotation of the door body. A double rod hydraulic cylinder with a pin connected to the tip of the rod is arranged in a swinging manner, and the hydraulic fluid that connects the hydraulic cylinder, hydraulic pump, and hydraulic oil tank is supplied with hydraulic oil supplied from the hydraulic pump. A directional control valve that switches to the extending or contracting direction of the hydraulic cylinder, and a check valve that shuts off the hydraulic oil flow from the hydraulic cylinder side to the hydraulic oil tank except when hydraulic oil is supplied by a hydraulic pump; and Hydraulic pump The bypass circuit has a bypass circuit that enables free extension or contraction of the double rod hydraulic cylinder except for the time, and the bypass circuit is closed by disposing a switching valve that opens and closes the circuit. By supplying hydraulic oil from the hydraulic pump, the double rod hydraulic cylinder is expanded and contracted to raise and lower the door body. When the hydraulic pump is stopped, the bypass body is opened and the door body is automatically driven by the water pressure acting on the door body. An automatic tide door facility for terrestrial land, which has a function to move up and down.   2. The automatic tide door apparatus for land according to claim 1, wherein when the floating door body falls down and the land is opened, the upper surface of the door is used as a passage floor.   3. The bypass circuit of the double rod type hydraulic cylinder is provided with a circuit for each of standing and falling of the floating door body, and speed adjustment of each of standing and falling is possible. Automatic tide door equipment at Rikusui. The bypass circuit of the double rod type hydraulic cylinder is provided with a separate circuit for standing and overturning of the floating door body, and it is possible to adjust the speed of each standing and overturning, and open and shut off the entire bypass circuit. 4. The automatic tide door equipment for a land anchor according to claim 1, further comprising a switching valve that opens and shuts off only the lodging circuit in addition to the switching valve.

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