JP4031694B2 - Seawall / breakwater - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tide / breakwater provided in a harbor, a fishing port, or the like.
[0002]
[Prior art]
Conventionally, what is shown in the following patent document 1 is known as this kind of tide and a breakwater. This will be described with reference to FIGS. In FIG. 6, the tide / breakwater 100 includes a base concrete 101 placed on the bottom of the water, a flexible film 102 formed in an airtight bag-like body, and a fixing for fixing the flexible film 102 to the base concrete 101. Unit 103, supply pipe 104 / discharge pipe 105 for supplying / discharging fluid into / from flexible membrane 102, supply / discharge equipment (not shown), and box shape disposed in flexible membrane 102 The storage unit 106 having a shape is a main component. An opening 107 for storing and unfolding the flexible membrane 102 is provided on the upper surface of the storage unit 106. The flexible film 102 is composed of a lower flexible film 108 that is in contact with the base concrete 101 and an upper flexible film 109 other than the lower flexible film 108.
[0003]
According to the tide / breakwater 100 having the above-described configuration, when the flexible membrane 102 is laid down, the air in the flexible membrane 102 is forcibly discharged via the discharge pipe 105 from the supply / discharge facility. To do. Then, the upper flexible film 109 first comes into contact with the outer surface of the storage unit 106 by water pressure. Thereafter, the upper flexible film 109 is pushed by water pressure from the left and right of the substantially central portion to come into contact with the palm, falls from the opening 107 into the storage portion 106, and is stored as shown in FIG.
[0004]
Conversely, when the flexible membrane 102 is erected, air is forcibly supplied into the flexible membrane 102 via the supply pipe 104 from the supply / discharge facility. The upper flexible film 109 of the flexible film 102 supplied with air expands from the opening 107 to the outside of the storage unit 106 due to air buoyancy, and stands up in a substantially arc shape as shown in FIG. To do. Thus, when the top of the upper flexible film 109 protrudes above the water surface, the tide / breakwater 100 can stop the flow of water and prevent waves.
[0005]
[Patent Document 1]
JP-A-62-178614 (Page 2-3, FIGS. 1 and 2)
[0006]
[Problems to be solved by the invention]
By the way, in the above-mentioned tide / breakwater 100, air is put in and out of the flexible membrane 102 so that the upper flexible membrane 109 is expanded and stored to open and close the water channel. However, when the upper flexible film 109 is stretched, the upper flexible film 109 is caught by the storage unit 106 and cannot be smoothly stretched, or when the upper flexible film 109 is stored, There is a problem that 109 may not be folded well and may not be smoothly stored into the storage unit 106 from the opening 107, and the water channel may not be smoothly opened and closed.
[0007]
The present invention has been made in view of such circumstances, and an object thereof is to provide a tide / breakwater that can quickly open and close a water channel by smoothly spreading a membrane structure. .
[0008]
[Means for Solving the Problems]
The tide / breakwater of the present invention employs the following means in order to solve the above problems .
[0015]
According to the tide / breakwater according to the present invention, since the lifting device for lifting the membrane structure is provided, the membrane structure can be smoothly extended and stored.
[0016]
The invention according to claim 1 includes a pair of locking foundations sandwiching a water channel therebetween and a membrane structure laid between the locking foundations, wherein each of the locking foundations extends in the vertical direction. A film body that closes the water channel, a plurality of cable wires that receive water pressure, and a rotary connection that is provided on both sides of the cable wires and rolls up and down in the guide grooves. And a lifting device for pulling up the membrane structure, wherein the lifting device is connected to a lower end of the membrane structure, and a puller that winds and unwinds the strip structure. Means.
[0017]
According to the tide / breakwater according to the present invention, the rotating coupling body is provided on both sides of the membrane structure, and the guide groove on which the rotating coupling body rolls in the vertical direction is provided on each locking base. Yes. Therefore, the membrane structure and the locking base can be connected to be movable in the vertical direction by connecting the rotary connecting body and the guide groove. Since the rotary coupling body moves up and down while rolling in the guide groove, the friction acting on the rotary coupling body and the guide groove is reduced. That is, when the membrane structure is stretched and stored, the working friction is reduced, and the membrane structure can be smoothly stretched and stored.
Since the lifting device for pulling up the membrane structure is provided, the membrane structure can be smoothly expanded and stored.
The membrane structure is provided with the cord body for winding and unwinding the membrane structure. Therefore, the membrane structure can be expanded and stored by winding and unwinding the membrane structure using the pulling means.
The membrane structure is accommodated when the traction means winds up the strip. Therefore, the membrane structure can be smoothly accommodated without being affected by friction and the like at the connecting portion between the membrane structure and the locking foundation.
[0018]
The invention according to claim 2 includes a pair of locking foundations sandwiching a water channel and a membrane structure laid between the locking foundations, and each of the locking foundations extends in the vertical direction. A film body that closes the water channel, a plurality of cable wires that receive water pressure, and a rotary connection that is provided on both sides of the cable wires and rolls up and down in the guide grooves. And a lifting device for pulling up the membrane structure. The lifting device lifts and lowers the pistons provided on both sides of the membrane structure and the locking bases. And a pump for injecting and discharging liquid into the cylinder.
[0019]
According to the tide / breakwater according to the present invention, the membrane structure is provided with the piston, and the locking base includes the cylinder that moves the piston up and down, and the liquid that is injected into and discharged from the cylinder. And a pump. Therefore, by injecting and discharging liquid into the cylinder, the piston in the cylinder can be raised and lowered to expand and store the membrane structure.
The membrane structure is housed by injecting liquid into the cylinder and pushing up the piston. Therefore, the membrane structure can be smoothly accommodated without being affected by friction and the like at the connecting portion between the membrane structure and the locking foundation.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are views showing a first embodiment of the present invention.
In FIG. 1, a tide / breakwater 10 includes a membrane structure 11 that is a shield that opens and closes a water channel that connects the sea side and the port side, and an anchorage (locking foundation) 12R that locks the end of the membrane structure 11. , 12L, and breakwaters 13R, 13L extending to the left and right of anchorages 12R, 12L.
The membrane structure 11 is provided with a membrane body 14 that shields the water channel, a plurality of cable wires 15 that receive water pressure, and a floating body 16 that imparts buoyancy to the top of the membrane structure 11. A rotary coupling body 17 is provided for coupling to the anchorages 12R and 12L. The cable wires 15 are arranged along the film body 14 so as to be separated from each other by a predetermined distance, and the film body 14 is fixed so as to stick to the cable wire 15 from the sea side.
[0021]
The anchorages 12R and 12L are provided with vertical portions 18R and 18L installed in a substantially vertical direction, and horizontal portions 19R and 19L projecting along the bottom of the water from the vertical portions 18R and 18L near the bottom of the water. ing. On the horizontal portions 19R and 19L, there are provided a caterpillar (not shown) on which the rotary coupling body 17 is placed and carried to the sea side end, and a drive mechanism 20 for driving the caterpillar.
Further, in the vertical portions 18R and 18L, the guide grooves 21 are provided in the substantially vertical direction so as to face the water channel side, and in the horizontal portions 19R and 19L, the horizontal grooves 22 (guide grooves) are provided along the water bottom. It is provided to face the waterway side.
[0022]
In the tide / breakwater 10 constructed as described above, as shown in FIG. 2, when the membrane structure 11 is expanded, the rotary coupling body 17 of the cable wire 15 is utilized from the upper end opening of the guide groove 21 by using gravity. Then drop it. When the rotary coupling body 17 is dropped into the guide groove 21, the rotary coupling body 17 sinks while rolling the guide groove 21.
When the rotary connecting body 17 reaches the lower end of the guide groove 21 of the vertical portions 18R and 18L, the rotating connecting body 17 is placed on a caterpillar (not shown) driven by the drive mechanism 20, as shown in FIG. The horizontal grooves 22 of the horizontal portions 19R and 19L are carried toward the sea side.
[0023]
When the membrane structure 11 is stored, the membrane structure 11 is pulled up from the upper end opening of the guide groove 21. At this time, the rotary coupling body 17 of the membrane structure 11 is pulled upward while rolling the guide groove 21 and the horizontal groove 22.
[0024]
According to the above configuration, when the membrane structure 11 sinks due to its own weight, the rotary coupling body 17 rolls on the guide groove 21, so that the friction that acts when the membrane structure 11 sinks is reduced. At the same time, the friction acting when the membrane structure 11 is pulled up and stored is reduced. Therefore, the membrane structure 11 can smoothly expand and store the membrane structure 11 along the guide groove 21, and can smoothly open and close the water channel.
[0025]
FIG. 3 is a diagram showing a second embodiment of the present invention. The entire configuration is the same as that shown in FIG. 1, and the same components are denoted by the same reference numerals and description thereof is omitted.
In FIG. 3, the tide / breakwater 50 is provided with a winch (traction means) 51 on the anchorages 12 </ b> R and 12 </ b> L, and the winch 51 and the lower end of the membrane structure 11 are connected by a rope (strand body) 52.
[0026]
In the tide / breakwater 50 having the above-described configuration, first, the membrane structure 11 is folded on the water surface and installed between the anchorages 12R and 12L. And as shown in FIG. 3, the membrane structure 11 sinks the lower end toward the water bottom by unwinding the rope 52 from the winch 51.
Thereafter, when the membrane structure 11 reaches the bottom of the water, the membrane structure 11 is pulled toward the sea side along the horizontal groove 22 by the drive mechanism 20.
[0027]
When the membrane structure 11 is housed, the membrane structure 11 is pulled up along the guide groove 21 and the horizontal groove 22 by winding the rope 52 using the winch 51 while rotating the drive mechanism 20 in the reverse direction. .
[0028]
According to said structure, the membrane structure 11 can be expanded and accommodated by winding up and unwinding the membrane structure 11 using the winch 51. FIG. Therefore, the water channel can be opened and closed smoothly.
[0029]
Further, when the winch 51 winds up the rope 52, the membrane structure 11 is accommodated without being affected by friction or the like at the connecting portion between the membrane structure 11 and the anchorages 12R and 12L. Therefore, the membrane structure 11 can be accommodated smoothly, and the water channel can be opened and closed smoothly.
[0030]
The mechanical part for expanding and storing the membrane structure 11 is only the winch 51 provided on the upper part of the anchorages 12R and 12L. Since the winch 51 is installed on the water surface, the maintenance inspection becomes easy. Since the maintenance and inspection of the winch 51 for expanding and storing the membrane structure 11 is easy, the membrane structure 11 can be smoothly expanded and stored, and the water channel can be opened and closed smoothly.
[0031]
FIG. 4 is a diagram showing a third embodiment of the present invention. The entire configuration is the same as that shown in FIG. 1, and the same components are denoted by the same reference numerals and description thereof is omitted.
In FIG. 4, the tide / breakwater 70 is provided with a cylinder 71 extending in a substantially vertical direction in the anchorages 12R and 12L, and a pump 72 for injecting and discharging seawater into the cylinder 71 at the lower end of the cylinder 71. ing. The membrane structure 11 is provided with pistons 73 at the left and right lower ends thereof, and the piston 73 is disposed in the cylinder 71 so as to be movable in the vertical direction.
[0032]
In the tide / breakwater 70 constructed as described above, as shown in FIG. 4, when the membrane structure 11 is expanded, the seawater that has entered the left and right cylinders 71 to the vicinity of the water surface is gradually drained by the pump 72. Thus, the piston 73 floating in the cylinder 71 is gradually moved downward. By moving the piston 73 downward, the membrane structure 11 coupled to the piston 73 is expanded downward.
[0033]
Further, when the membrane structure 11 is housed, seawater is gradually injected from below the piston 73 at the bottom of the cylinder 71 that has been drained and emptied to move the piston 73 upward. When the piston 73 moves upward, the membrane structure 11 coupled to the piston 73 also moves upward and is stored.
[0034]
According to the above configuration, by injecting and discharging seawater into the cylinder 71, the piston 73 in the cylinder 71 can be moved up and down, and the membrane structure 11 can be expanded and stored. Therefore, the water channel can be opened and closed smoothly.
[0035]
By injecting seawater into the cylinder 71 and pushing up the piston 73, the membrane structure 11 can be accommodated without being affected by friction and the like at the connecting portion between the membrane structure 11 and the anchorages 12R and 12L. Therefore, the membrane structure 11 can be accommodated smoothly, and the water channel can be opened and closed smoothly.
[0036]
FIG. 5 is a diagram showing a fourth embodiment of the present invention. The entire configuration is the same as that shown in FIG. 1, and the same components are denoted by the same reference numerals and description thereof is omitted.
In FIG. 5, the tide / breakwater 90 has a support housing 91 fastened to both ends of the wire cable 15 of the membrane structure 11, and the anchorage 12R and 12L have guide grooves 92 in which the support housing 91 moves up and down, An elevator (elevating means) 93 that raises and lowers the support housing 91 is provided.
[0037]
In the tide / breakwater 90 constructed as described above, when the water channel is open, as shown in FIG. 1, the left and right support housings 91 are raised, and the membrane structure 11 is also retreated above the water channel. Yes. When closing the water channel, the support housing 91 is pulled into the guide groove 92 by the elevators 93 of the anchorages 12R and 12L. When the support housing 91 is pulled into the guide groove 92, the membrane structure 11 coupled to the support housing 91 also moves between the anchorages 12R and 12L, and closes the water channel.
[0038]
Conversely, when the support housing 91 is raised from the guide groove 92 by the elevator 93, the membrane structure 11 coupled to the support housing 91 is also raised, and the water channel between the anchorages 12R and 12L is opened.
[0039]
According to the above configuration, the membrane structure 11 is in an unfolded state and is disposed in parallel with the guide groove 92. Therefore, the resistance received from the water when the membrane structure 11 is deployed and stored in water. Is the least. That is, the membrane structure 11 can be expanded and stored smoothly, and the water channel can be opened and closed smoothly.
[0040]
In addition, since the support casing 91 that is long in the vertical direction is moved up and down along the guide groove 92 that is also long in the vertical direction, the membrane structure 11 is not easily affected by frictional resistance or the like at the connecting portions with the anchorages 12R and 12L. Therefore, the membrane structure 11 can be smoothly expanded and stored, and the water channel can be opened and closed smoothly.
[0041]
Since the membrane structure 11 is supported on both sides by the support housing 91, the membrane structure 11 is not folded. Therefore, the membrane structure 11 can be smoothly expanded and stored without requiring time for folding or opening. Therefore, the water channel can be opened and closed smoothly.
[0042]
In addition, said 4th embodiment is suitable embodiment used for the entrance / exit of a fishing port etc. whose distance between anchorage 12R, 12L is about 30m-50m.
[0043]
【The invention's effect】
As described above, according to the first aspect of the present invention, the rotary coupling body moves up and down while rolling in the guide groove, so that friction acting between the rotary coupling body and the guide groove is generated. Get smaller. Therefore, even when the membrane structure is expanded and stored, the working friction is reduced, the film structure can be smoothly expanded and stored, and the water channel can be opened and closed smoothly.
[0046]
Since provided with a lifting device to raise the front Kimaku structure, the membrane structure smoothly stretched, can be housed smoothly advantageously possible to open and close the waterway.
[0047]
By returning hoisting and winding said film structure by using a pre-Symbol traction means, said membrane structure stretched, can be accommodated. Therefore, there is an effect that the water channel can be opened and closed smoothly.
[0048]
In addition, since the membrane structure is wound up using the pulling means, the membrane structure is smoothly accommodated without being affected by friction or the like at the connecting portion between the membrane structure and the locking base. be able to. Therefore, there is an effect that the water channel can be closed smoothly.
[0049]
According to the invention which concerns on Claim 2 , the said piston in the said cylinder can be raised-lowered by injecting / discharging the liquid to the said cylinder, and the said membrane structure can be expanded and accommodated. Therefore, there is an effect that the water channel can be opened and closed smoothly.
[0050]
In addition, by injecting liquid into the cylinder and pushing up the piston, the membrane structure can be smoothly stored without being affected by friction or the like at the connecting portion between the membrane structure and the locking base. can do. Therefore, there is an effect that the water channel can be closed smoothly.
[Brief description of the drawings]
FIG. 1 is a plan view showing a first embodiment of a tide / breakwater according to the present invention.
FIG. 2 is a side view showing a first embodiment of a tide / breakwater according to the present invention.
FIG. 3 is a side view showing a second embodiment of the tide / breakwater according to the present invention.
FIG. 4 is a side view showing a third embodiment of a tide / breakwater according to the present invention.
FIG. 5 is a side view showing a fourth embodiment of a tide / breakwater according to the present invention.
FIG. 6 is a cross-sectional view showing an example of a conventional tide / breakwater.
FIG. 7 is a cross-sectional view showing an example of a conventional tide / breakwater.
[Explanation of symbols]
10, 50, 70, 90 Seawall / breakwater 11 Membrane structure 12R, 12L Anchorage (locking foundation)
14 Film body 17 Rotating coupling body 21 Guide groove 22 Horizontal groove (guide groove)
51 winch (traction means)
52 Rope
71 Cylinder 72 Pump 73 Piston 91 Supporting housing 92 Guide groove 93 Elevator (elevating means)

Claims (2)

A pair of locking foundations sandwiching the water channel, and a membrane structure constructed between these locking foundations,
Each of the locking foundations includes a guide groove extending in the vertical direction,
The membrane structure includes a membrane body that closes the water channel, a plurality of cable wires that receive water pressure, and a rotary coupling body that is provided on both sides of the cable wire and rolls up and down in the guide grooves. ,
A lifting device for lifting the membrane structure;
The tidal / breakwater is characterized in that the lifting device includes a rope connected to the lower end of the membrane structure, and traction means for winding and unwinding the rope. A pair of locking foundations sandwiching a water channel, and a membrane structure erected between the locking foundations, each locking foundation including a guide groove extending in the vertical direction, A membrane body that closes the water channel, a plurality of cable wires that receive water pressure, and a rotary coupling body that is provided on both sides of the cable wire and rolls up and down in the guide grooves. Further equipped with a lifting device for lifting objects,
The lifting device includes a piston provided on both sides of the membrane structure, a cylinder provided on each locking base side for raising and lowering the piston, and a pump for injecting and discharging liquid into the cylinder. A tide and breakwater characterized by that.

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