JP3546380B2 - Undulating gate - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an up / down gate used for raising or discharging flowing water in a waterway by freely standing or falling by a rotating shaft provided at the bottom of the waterway.
[0002]
[Prior art]
Conventionally, as an undulating gate, a wire rope or chain is attached to the head of a steel door body that has a horizontal girder or a vertical girder that is sufficiently strong against a steel plate (water blocking plate) subjected to water pressure, and this is mounted on land. Type that takes up or rewinds with a hoisting machine and raises or falls down, or a type that pushes up a similar steel door with a hydraulic jack, raises it, and contracts the hydraulic jack to fall down. Various types have been developed and used.
[0003]
In recent years, a rubber cylinder reinforced with cloth has been fixed to a channel floor to withstand internal air pressure and external force (water pressure and impact force from a falling object, etc.) The cylinder of the swelling expands the flowing water, and conversely, by opening the on-off valve and releasing the air having the internal pressure, the rubber cylinder is crushed flat by its own weight and the water pressure, and the water that has been raised is released. Outflow, so-called rubber weirs, have been developed and widely used.
[0004]
[Problems to be solved by the invention]
By the way, the type that raises and lowers with a wire rope or a chain attached to the head of a steel door body reinforced with horizontal and vertical girders has good operability and is stable even in an intermediate standing posture. However, this is not only unsuitable for large undulating gates, but also increases construction costs.
[0005]
In addition, a steel door body reinforced by sufficiently strong horizontal and vertical girders is pushed up with a hydraulic jack, and is an easy-to-handle undulating gate that has good operability and is stable even in an intermediate standing posture. In addition, the gate width can be considerably large as 30 to 40 m, and it is a highly safe undulating gate that is not easily damaged by earth and sand, boulders, driftwood, drift ice and the like. However, there is a disadvantage that the construction cost is high. In particular, the manufacture, transportation, and installation of thin and heavy steel doors are major causes of high construction costs. In addition, if the operating oil leaks, there is a risk that the waterway will be polluted and become a social problem.
[0006]
Another major advantage of the rubber weir is that the construction cost is lower than that of the steel gate gate. Nevertheless, when constructing a large waterway, the process of manufacturing a slender and heavy rubber tube in a factory and transporting and installing it without damage on the site requires a lot of technical difficulties and a lot of cost. Become.
[0007]
In addition, even though the rubber weir is reinforced with several layers of cloth, it is easily damaged by earth and sand, boulders, driftwood, and drifting ice that run down with water, and it is necessary to constantly monitor and repair it, which is uneconomical. .
[0008]
In addition, the flexible door of the rubber weir has a serious technical disadvantage that it is unstable in the intermediate inflated state and cannot maintain a uniform intermediate standing state over the entire width. In other words, in the intermediate inflated state, the cylindrical door body becomes unstable, and if a partial collapse occurs first, only the collapse of the location proceeds and a partially collapsed posture occurs. Out of the river and cannot maintain the water surface upstream of the gate.
[0009]
Although the present invention has developed and used a wide variety of gates as described above, it solves the technical problems while simultaneously having advantages and disadvantages, and at the same time, is constructed at a significantly lower cost. It provides a possible undulating gate.
[0010]
[Means for Solving the Problems]
That is, the undulating gate of the present invention is strong against external force (water pressure, impact force received from falling objects, etc.) of the undulating gate by the conventionally used steel door, has wear resistance, and has an intermediate standing posture. A very inexpensive, easy-to-handle undulating gate that succeeded in introducing the same economics as a rubber weir that supports the gate continuously in the width direction with air bags while taking advantage of its stability. is there.
[0011]
This will be specifically described below. That is, a vertical anchor bolt and a bearing / holding plate installed in a line across the bottom of a waterway having a rectangular cross section are a rubber having three sides closed and one side opened when air is exhausted. By pressing the open side of the airbag made of drawing cloth against the bottom of the waterway, the open side is sealed and the airbag is fixed to the bottom of the waterway, and at the same time, the bearing protruding on the downstream side of the bearing / holding plate In addition, a swelling gate having a very simple structure in which a bearing protruding from the lower end of a steel plate door is freely rotatable by a rotating shaft is employed.
[0012]
In the up-and-down gate configured as described above, the air bag made of rubber cloth is located at the root portion downstream of the door body and continuously supports the door body over its entire width. No digits are required. Therefore, it is possible to make the thickness of the door body equal to or less than the thickness of the bearing / holding plate.
Furthermore, the open side of the airbag made of a rectangular rubber cloth having three sides closed and the one side opened is pressed against the bottom of the waterway, and the airbag is fixed to the bottom of the waterway while hermetically sealing the airbag. Therefore, the rotating shaft and the bearing can be provided with necessary functions with small dimensions.
That is, in this structure, the bearing / holding plate fixed to the water channel bottom by one row of anchor bolts is a) sealing and fixing the air bag;
b) Undulating fixing of the door body,
c) fixation of the lower watertight rubber,
By combining these three functions, a very simple structure was made possible.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of an undulating gate according to the present invention will be described in detail with reference to the drawings. 1, 2, 3, 4, and 5 show one embodiment of an undulating gate according to the present invention. FIG. 1 is a rear view of the undulating gate, and FIG. 2 is a sectional view of the undulating gate. FIG. 3 is a sectional view of the up-and-down gate, showing an upright state, FIG. 4 is an explanatory view of an assembled state of a bearing / holding plate, a rotating shaft, and a door body, and FIG. 5 is an explanatory view of an air bag. is there.
[0014]
1, 2 and 3, vertical anchor bolts 2 installed in a row across the water channel are provided on a concrete upper surface 1 at the bottom of the water channel having a rectangular cross section, and an air bag 4 is provided by a bearing / pressing plate 3. Of the open side of the water channel is pressed against the concrete upper surface 1 at the bottom of the water channel, thereby sealing the open side of the air bag 4 and fixing the air bag 4 to the concrete upper surface 1 at the same time.
At the end of the edge 5 of the open side of the air bag 4, there is a folded portion 7 of the reinforcing fiber protected by a resin rod 6 so that the bending radius of the reinforcing fiber does not become too small. Of the open side of the air bladder 4 and the corner 5 upstream of the concrete upper surface 1 so as to prevent the edge 5 of the open side of the air bladder 4 from being pulled out by the tension acting on the air bladder 4.
[0015]
Further, the bearing 10 projecting downstream of the bearing / holding plate 3 is combined with the rotating shaft 13 in the concave portion 12 at the lower end of the door body 11, and at the same time, the bearing 14 projecting at the lower end of the door body 11 is formed by the bearing 14. Since the door body 11 is combined with the rotating shaft 13 in the concave portion 15 on the downstream side, the door body 11 is freely rotatable with respect to the bearing / holding plate 3.
[0016]
On the other hand, one side of one rubber plate 16 is fixed to the upper surface of the bearing / holding plate 3 by the holding plate 17 and the bolt 18, and the other side is located on the upstream surface of the lower part of the door body 11 by the holding plate 19 and the bolt 20. By fixing, water leakage between the bearing / holding plate 3 and the door body 11 is prevented.
In addition, a belt 23 made of a rubberized cloth having sufficient strength and having one end fixed to the upper surface 26 of the concrete with an anchor bolt 21 and a holding plate 22 installed at an appropriate position downstream of the air bag 4 at the bottom of the water channel. By fixing the end to an appropriate position on the downstream surface of the door body 11 above the position where the air bag 4 comes into contact with the bolt 24 and the holding plate 25, when the door body 11 stands up to a predetermined position, The door 11 is stopped by the tension acting on the door 23.
[0017]
Next, the bent part 27 of the head of the door body 11 guides the water flowing over the door body 11 to the downstream side at the time of standing, so that the overflowing water or the driftwood flowing down together with the air bag 4 or the belt is formed. Protect from hitting 23 etc. In addition, at the time of falling down, the tip of the bent portion 27 of the head of the door body 11 is supported by the support base 28, and a necessary space is provided by the upper surface 1 of the concrete, the upper surface 26 of the downstream concrete, and the downstream surface of the door 11. As a result, the air bag 4 and the belt 23 are not crushed by the door 11.
[0018]
As shown in FIG. 4, a bearing 10 protruding from the downstream edge of the bearing / holding plate 3 is combined with a rotating shaft 13 in a concave portion 12 at the lower end of the door body 11, and a bearing 14 protruding from the lower end of the door body 11 is simultaneously provided with a bearing. In the recess 15 at the downstream edge of the dual-purpose presser plate 3, it is combined with the rotating shaft 13 and can rotate freely with each other.
The bearing / holding plate 3 is provided with a counterbore hole 38 corresponding to the anchor bolt 2 and a female screw 39 corresponding to the bolt 18 for fixing one end of the rubber plate 16.
Further, the door body 11 is provided with a female screw 40 corresponding to the bolt 20 for fixing the other end of the rubber plate 16 and a hole 41 corresponding to the bolt 24 for fixing one end of the belt 23.
[0019]
As shown in FIG. 5, when the air is discharged, the air bag 4 manufactured to have a flat rectangular shape has an open side slightly smaller than the gate width, and expands in a direction perpendicular to the gate width. Sometimes it has dimensions sufficient to push up the door 11.
On three sides other than the open side to be pressed by the bearing / holding plate 3, the rubberized cloth is continuously bent and closed. On the open side, there is a folded portion 7 of the reinforcing fiber, which is protected by a resin rod 6 so that the bending radius of the reinforcing fiber is not too small, at the ends of the edges 5 of the two rubberized cloths facing each other. . Further, a hole 29 through which the anchor bolt 2 penetrates runs through the edges 5 of the two rubberized cloths in parallel with the folded portion 7. A base 30 is attached to the lower side of the air bag 4 near the center of the rubberized cloth.
[0020]
With this configuration, the air pipe 37 connected to the base 30 at the lower part of the air bag 4 is buried in the concrete of the waterway and led to the land. As shown in FIGS. 1, 2 and 3, the valve 32, the exhaust / emission unit 33, the air supply on-off valve 34, the air supply flow rate control valve 35, and the air compressor 36 are connected.
[0021]
Then, air is injected into the air bag 4 from the air compressor 36 via the air supply flow control valve 35, the air supply opening / closing valve 34, and the air pipe 37. FIG. 2 is a cross-sectional view, in which the bent portion 27 of the head of the door body 11 functions to guide the overflowing water downstream and not hit the air bag 4 or the belt 23. FIG. 1 shows this state viewed from the downstream side. The air bag 4 is on the back side of the door body 11 and supports the door body 11 over almost the entire width.
[0022]
On the other hand, the air compressor 36 is stopped, the air supply on-off valve 34 is closed, the exhaust on-off valve 31 is opened, and the air having the pressure inside the air bag 4 is controlled by the exhaust flow control valve 32. FIG. 3 is a cross-sectional view showing a state in which the door body 11 is completely laid down as a result of discharge from the exhaust discharge section 33 to the atmosphere.
In this state, since earth and sand may flow down the bottom of the water channel violently, an angle iron 43 is provided for reinforcement at the head of the water channel bottom 42 immediately upstream of the bearing / holding plate 3.
[0023]
FIGS. 6, 7, 8 and 9 show another embodiment of the undulating gate according to the present invention. FIG. 6 is a sectional view of the undulating gate and shows an upright state, and FIG. FIG. 8 is a view showing a state in which the bearing is down, FIG. 8 is an explanatory view of an assembled state of a bearing / holding plate, a rotary shaft, and a door body, and FIG. 9 is an explanatory view of an air bag.
[0024]
6 and 7, at the bottom of a water channel having a rectangular cross section, a bolt 63 screwed into a vertical female screw 62 provided in a row of anchor hardware 61 installed across the water channel is provided on the bearing side of the bearing / holding plate 3. By pressing the edge 5 of the open side of the air bag 4 by the convex portion 64 of the air bag 4 against the convex portion 65 on the downstream side of the anchor hardware 61, the open side of the air bag 4 is sealed, and at the same time, the air bag 4 is anchored. It is fixed to hardware 61.
At the end of the edge 5 of the open side of the air bag 4, there is a folded portion 7 of the reinforcing fiber protected by a resin rod 6 so that the bending radius of the reinforcing fiber does not become too small. The edge 5 of the open side of the air bag 4 is applied to the air bag 4 at the upstream corner 66 of the projection 64 on the bearing side and the upstream corner 67 of the projection 65 on the downstream side of the anchor hardware 61. Functions so as not to be pulled out.
[0025]
Further, when the bearing / pressing plate 3 is pressed by the bolt 63, the convex portion 68 at the upstream end thereof is supported by the convex portion 69 on the upstream side of the anchor hardware 61. The side convex portion 64 more strongly presses the edge 5 of the open side of the air bag 4, so that the open side of the air bag 4 is securely sealed and fixed.
Further, the bearing 10 protruding from the downstream edge of the bearing / pressing plate 3 is combined with the rotating shaft 13 in the concave portion 12 at the lower end of the door body 11, and at the same time, the bearing 14 protruding from the lower end of the door body 11 is provided by the bearing 14. Since the door body 11 is engaged with the rotating shaft 13 in the concave portion 15 on the downstream edge, the door body 11 is freely rotatable with respect to the bearing / holding plate 3 and can stand up or down freely.
[0026]
On the other hand, one side of one rubber plate 16 is fixed to the upper surface of the bearing / holding plate 3 by the holding plate 17 and the bolt 18, and the other side is located on the upstream surface of the lower part of the door body 11 by the holding plate 19 and the bolt 20. By fixing, water leakage between the bearing / holding plate 3 and the door body 11 is prevented.
In addition, a belt 23 made of a rubberized cloth having sufficient strength and having one end fixed to the upper surface 26 of the concrete with an anchor bolt 21 and a holding plate 22 installed at an appropriate position downstream of the air bag 4 at the bottom of the waterway. Is fixed to an appropriate position on the downstream surface of the door body 11 above the position where the air bag 4 comes into contact with the bolt 24 and the holding plate 25, so that when the door body 11 stands up to a predetermined posture, The door 11 is stopped by the tension acting on the band 23.
[0027]
Next, when the bent portion 27 of the head of the door body 11 rises, the water flowing over the door body 11 is guided downstream and then dropped, so that the water flowing over and the garbage and driftwood flowing down together are removed. The air bag 4 and the belt 23 are protected from being hit directly. Further, at the time of falling down, the tip of the bent portion 27 of the head of the door body 11 is supported by the support hardware 28 to secure a necessary space between the upper surface 26 of the concrete and the door body 11. 23 is not crushed by the door 11.
[0028]
Further, in order to enhance the bending rigidity of the door body 11 in the height direction, an elongated reinforcing steel plate 70 is attached by welding in a direction perpendicular to the upstream surface of the door body 11 in a direction parallel to the flow of water. At a necessary place in the reinforcing steel plate 70, the connecting steel plate 72 is extended to a position above the bent portion 27, and is connected to the spoiler 71 protruding at the tip of the bent portion 27. The spoiler 71 prevents low-frequency noise that may be generated when water flowing over the door body 11 falls from the bending portion 27. When the spoiler 71 and the reinforcing steel plate 70 are connected by the connecting steel plate 72, there is an effect of preventing a situation in which the litter does not fall on the spoiler 71 at the time of standing or falling down.
[0029]
FIG. 8 shows the configuration of the door 11, the reinforcing steel plate 70, and the like described above, and also shows the combination of the door 11, the rotating shaft 13, and the bearing presser plate 3.
FIG. 9 is an explanatory view of the air bag 4 in this embodiment. In this embodiment, since the bolt 63 for pressing the bearing / holding plate 3 does not penetrate the air bag 4, there is no need to make a hole in the edge 5 of the open side, so that sealing is more reliable and advantageous.
[0030]
With this configuration, the air pipe 37 connected to the base 30 at the lower part of the air bag 4 is buried in the concrete of the waterway and led to the land. As shown in FIGS. 6 and 7, the valve 32, the exhaust discharge section 33, the air supply opening / closing valve 34, the air supply flow control valve 35, and the air compressor 36 are connected.
[0031]
Then, air is injected into the air bag 4 from the air compressor 36 via the air supply flow control valve 35, the air supply opening / closing valve 34, and the air pipe 37. FIG. 6 is a cross-sectional view, and the bent portion 27 of the head of the door body 11 functions to guide the overflowing water downstream and not hit the air bag 4 or the belt 23.
[0032]
On the other hand, the air compressor 36 is stopped, the air supply on-off valve 34 is closed, the exhaust on-off valve 31 is opened, and the air having the pressure inside the air bag 4 is controlled by the exhaust flow control valve 32. FIG. 7 is a cross-sectional view showing a state where the door body 11 is completely laid down as a result of discharge from the exhaust discharge section 33 to the atmosphere.
In this state, since earth and sand may flow down the bottom of the water channel violently, an angle iron 43 is provided for reinforcement at the head of the water channel bottom 42 immediately upstream of the bearing / holding plate 3.
[0033]
【The invention's effect】
According to the undulating gate of the present invention, the bearing / holding plate 3 is a) sealing and fixing the air bag.
b) Undulating fixing of the door body,
c) fixation of the lower watertight rubber,
Since these are used as components that achieve the three main functions, a gate with a very small number of components and a very simple structure can be obtained.
Further, the door body almost continuously supported in the width direction by the air bag is a steel sheet door body with a low workability, which is also a factor that makes the gate extremely inexpensive.
[0034]
In addition, as an effect of adopting the bearing / holding plate 3, there is an economic effect that a required head between the upstream and downstream of the undulating gate is reduced, and the concrete structure is simple and small.
Further, in the undulating gate according to the present invention, the steel door body always protects the air bag and the belt, so that it is as strong and durable as the steel undulating gate against falling earth and sand, boulders, driftwood, drift ice and the like. Property is obtained.
[0035]
As described above, the undulating gate of the present invention is very economical, and has the same strength and durability as the conventional steel undulating gate.
[Brief description of the drawings]
FIG. 1 is a rear view showing an embodiment of an undulating gate according to the present invention, in a state where the undulating gate is erected.
FIG. 2 is a cross-sectional view illustrating a state where an undulating gate is erected.
FIG. 3 is a cross-sectional view showing a state where an undulating gate is laid down.
FIG. 4 is a schematic diagram of an assembled state of a door body, a rotating shaft, and a bearing / holding plate of an up / down gate;
FIG. 5 is a schematic view of an air bag according to the present invention.
FIG. 6 is a sectional view showing another embodiment of the undulating gate according to the present invention, in a state where the undulating gate is erected.
FIG. 7 is a cross-sectional view showing a state in which an undulating gate is laid down.
FIG. 8 is an explanatory diagram of a door body, a rotating shaft, and a bearing / holding plate of the undulating gate.
FIG. 9 is a schematic view of an air bag.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Upper surface 2 Anchor bolt 3 Bearing / holding plate 4 Air bag 5 Edge of open side 6 Rod 7 Folding portion 8, 9 Corner 10 Bearing 11 Door body 12 Depression 13 Rotary shaft 14 Bearing 15 Depression 16 Rubber plate 17 Pressing plate 18 Bolt Reference Signs List 19 holding plate 20 bolt 21 anchor bolt 22 holding plate 23 band 24 bolt 25 holding plate 26 upper surface 27 bent portion 28 support base 29 hole 30 base 31 exhaust opening / closing valve 32 exhaust flow regulating valve 33 exhaust discharging portion 34 air supply On-off valve 35 Air supply flow control valve 36 Air compressor 37 Air tube 38 Hole 39 Female screw 40 Female screw 41 Hole 42 Water channel bottom 43 Angle iron 61 Anchor hardware 62 Female screw 63 Bolt 64, 65 Convex portion 66, 67 Square 68, 69 Convex Part 70 Reinforced steel plate 71 Spoiler 72 Connected steel plate

Claims (4)

a) Vertical anchor bolts and bearing / holding plates installed in a row across the bottom of a rectangular channel with a rectangular cross-section, when the air is exhausted, a flat rectangular shape is obtained. By pressing the open side of the airbag made of drawing cloth against the bottom of the waterway, the airbag is fixed to the bottom of the waterway while sealing the open side.
b) The bearing protruding downstream of the bearing / holding plate is provided with a door member made of a steel plate having a dimension in the width direction slightly smaller than the weir width and a length necessary to secure an erect height required for erecting. A bearing protruding from the lower end of the shaft is freely rotatable by a rotating shaft.
c) On the other hand, one rubber plate is attached to the upper surface of the bearing / holding plate and the lower portion of the upstream surface of the steel plate door by means of bolts and holding plates, respectively. To prevent water leakage during
d) Connect the other end of a rubber-made cloth band having sufficient strength, one end of which is fixed with an anchor bolt and a holding plate installed at an appropriate position downstream of the air bag at the bottom of the water channel, and the other end of the belt made of steel plate. By fixing with a bolt and a holding plate at an appropriate position above the contact of the air bag on the surface, when the door body stands up to the predetermined posture, the door body stops due to the tension acting on this band. .
With this configuration, an air pipe is connected from the air operating device on land to the air bag, and if compressed air is sent from the air operating device into the air bag, the air bag expands and the door body rises. An up / down gate, characterized in that when air is discharged from the air bag, the air bag is crushed flat and the door body falls down. 2. The undulating gate according to claim 1, wherein a single row of vertical female screws is provided on an anchor hardware installed across the bottom of the waterway, instead of the vertical anchor bolts installed in one row across the bottom of the waterway. The bolt and the bearing presser plate are crushed into a flat rectangle when the air is exhausted. An undulating gate characterized by fixing air bags to anchor hardware while sealing the sides. In the undulating gate according to claim 1 or 2, an elongated steel plate is provided on an upstream surface of the door body in a posture perpendicular to the surface and in parallel with the flow of water for the purpose of enhancing bending rigidity in a height direction of the door body. An undulating gate, which is attached by welding in various directions. The undulating gate according to any one of claims 1 to 3, wherein the undulating gate having a small gate width (about 2 to 3 m) is arranged side by side in a direction in which the rotation axis of the door body extends, so as to have a large width (about 10 to 200 m). ) An undulating gate characterized by being an undulating gate of a waterway.

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