JP2004060362A - Drrricking gate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a derricking gage extremely simple in structure with a small number of parts, low in cost and having excellent watertightness. <P>SOLUTION: A lower watertight rubber plate fixed to the upstream face of a lower part of a door body put in derricking motion by a rotating shaft, and to the upper face of a pressing plate used also as a bearing, is extended upstream of the pressing plate used also as the bearing, and fixed to a cut-off hardware provided at foundation concrete, to form the structure of an air bag being unrelated to watertightness. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
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 rising or falling by a rotating shaft provided at the bottom of the waterway. .
[0002]
2. Description of the Related Art Conventionally, as an undulating gate, a wire rope or a chain is attached to the head of a steel door body in which a horizontal girder or a vertical girder which is sufficiently strong against a steel plate (water blocking plate) subjected to water pressure is arranged. Then, this is taken up or unwound by a land hoist and operated to stand up or fall down, or a similar steel door is pushed up with a hydraulic jack to stand up, and the hydraulic jack is contracted to fall down Various types have been developed and used.
In recent years, a rubber cylinder reinforced with cloth has been fixed to a channel floor so as to withstand internal air pressure and external force (such as water pressure and an impact force received from a falling object), and air has been pressed into the inside thereof. Then, the rubber cylinder expands and dams the running water.On the contrary, the air having the internal pressure is opened and released by opening the on-off valve, so that the rubber cylinder is crushed flat by its own weight and the water pressure, and the rubber cylinder rises. So-called rubber weirs, through which water flows out, have been developed and widely used.
Although various types of undulating gates have been developed and used as described above, the present invention has advantages and disadvantages, and solves the technical problems and at the same time makes the cost significantly lower. In order to provide an undulating gate that can be constructed, the applicants have previously proposed a new undulating gate technology in Japanese Patent Application No. 2001-116493.
That is, the opening of an air bag made of a rubberized cloth made of a flat rectangle having three sides closed and one side opened with a vertical anchor bolt and a bearing holding plate arranged side by side across the bottom of a rectangular waterway. The air bag is fixed to the bottom of the water channel while the open side is sealed by pressing the closed side to the bottom of the water channel, and at the same time, the steel plate door This is the adoption of an undulating gate having a very simple structure in which a bearing protruding at the lower end is rotatably mounted on a rotating shaft.
In the up-and-down gate constructed as described above, the air bag made of rubberized cloth is located at the root portion downstream of the door and continuously supports the door over its entire width. No directional reinforcement girder is 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.
[0006]
In the undulating gate of Japanese Patent Application No. 2001-116493, the plate rubber forming the lower watertightness is provided on the upper surface of the bearing / holding plate and the lower upstream surface of the steel plate door. Since each is attached by a bolt and a holding plate, water leakage between both can be completely prevented. However, there is a problem that water leaks from a gap that easily occurs between both sides of the air bag and a side door.
[0007]
Therefore, in the undulating gate according to the present invention, a lower watertight plate rubber is extended in the upstream direction from the bearing / holding plate so as to extend on the upper surface of the waterproofing metal installed on the foundation concrete. Also decided to attach with bolts and holding plate.
That is, the rubber plate for forming the lower watertightness is completed by attaching bolts and presser plates to the upper surface of the water-stopping metal, the bearing presser plate, and the lower upstream surface of the door body, respectively. Let it.
With this configuration, the portion of the air bag pressed against the bottom of the water channel by the anchor bolt and the bearing / holding plate has the function of fixing the air bag and sealing the opened side. Will be sufficient and independent of watertightness.
Naturally, the dimension of the lower watertight plate rubber in the width direction of the weir accurately matches the dimension between the side doors on both banks, and the end surface of the plate rubber keeps good contact with the surface of the side door. Therefore, the continuity between the watertightness of the lower portion and the watertightness of the side surface is also improved.
[0012]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an undulating gate according to the present invention will be described below 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.
1, 2 and 3, a vertical anchor bolt 2 installed in a line across the waterway is fixed on a concrete upper surface 1 at the bottom of the waterway having a rectangular cross section by a bearing press plate 3. By pressing the edge 5 of the open side of the air bladder 4 against the concrete upper surface 1 at the bottom of the water channel, the open side of the air bladder 4 is sealed and, at the same time, the air bladder 4 is fixed to the concrete upper surface 1.
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.
Further, a bearing 10 projecting downstream of the bearing / holding plate 3 is combined with a rotating shaft 13 in a concave portion 12 at a lower end of the door body 11, and a bearing 14 projecting at the lower end of the door body 11 is simultaneously provided with a bearing / holding presser. The door body 11 is freely rotatable with respect to the bearing holding plate 3 because the door body 11 is combined with the rotating shaft 13 in the concave portion 15 on the downstream side of the plate 3.
On the other hand, one side of one rubber plate 16 is fixed to the upper surface of the water-stopping metal 20 provided on the upstream foundation concrete 19 along the bearing / holding plate 3 by the holding plate 17 and the bolt 18. Is fixed to the upper surface of the lower part of the door body 11 by the holding plate 21 and the bolt 22, and is fixed to the upper surface of the bearing / holding plate 3 by the holding plate 23 and the bolt 24 in the middle thereof. Water leakage between the provided water-stopping hardware 20, the bearing / holding plate 3 and the door body 11 is prevented.
In addition, a belt 28 made of a rubberized cloth having sufficient strength and having one end fixed to the upper surface 27 of the concrete by an anchor bolt 25 and a holding plate 26 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 29 and the holding plate 30, when the door body 11 stands up to a predetermined position, The door 11 is stopped by the tension acting on the door 28.
Next, the bent portion 31 of the head of the door body 11 guides the water flowing over the door body 11 to the downstream side when standing up, so that the overflowing water and the driftwood and the like flowing down together with the air bag are bladded. 4 and the belt 28 are protected from hitting. In addition, at the time of falling down, the tip of the bent portion 31 of the head of the door body 11 is supported by the support base 32, and a necessary space is formed by the upper surface 1 of the concrete, the upper surface 27 of the downstream concrete, and the downstream surface of the door 11. As a result, the air bag 4 and the band 28 are not crushed by the door 11.
As shown in FIG. 4, a bearing 10 protruding from the downstream edge of the bearing / holding plate 3 is combined with a rotary shaft 13 in a concave portion 12 at the lower end of the door body 11, and at the same time, is protruded from the lower end of the door body 11. Reference numeral 14 is combined with the rotating shaft 13 at the concave portion 15 at the downstream edge of the bearing / holding plate 3 and is free to rotate with respect to each other.
The bearing / holding plate 3 is provided with a hole 33 with a counterbore corresponding to the anchor bolt 2 and a female screw 34 corresponding to the bolt 24 for fixing the middle of the rubber plate 16.
Further, the door body 11 is provided with a female screw 35 corresponding to the bolt 22 for fixing the other end of the rubber plate 16 and a hole 36 corresponding to the bolt 29 for fixing one end of the band 28.
As shown in FIG. 5, when the air is exhausted, the air bag 4 manufactured to have a flat rectangular shape has an open side slightly smaller than the gate width, and has a direction perpendicular to the gate width. , Have dimensions sufficient to push up the door 11 when inflated.
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 37 through which the anchor bolt 2 penetrates passes through the edges 5 of the two rubberized cloths in parallel with the folded portion 7. A base 38 is attached near the center of the rubberized cloth on the lower side of the air bag 4.
With the above construction, the air pipe 39 connected to the base 38 at the lower part of the air bag 4 is buried in the concrete of the waterway or the like, and is led to the land. 1, 2 and 3 are connected to a flow rate control valve 41, an exhaust / discharge unit 42, an air supply opening / closing valve 43, a flow rate control valve 44, and an air compressor 45.
Then, air is injected into the air bag 4 from the air compressor 45 via the air supply flow control valve 44, the air supply opening / closing valve 43, and the air pipe 39, so that the door 11 rises. FIG. 2 is a cross-sectional view showing a state in which the bent portion 31 of the head of the door body 11 functions to guide the overflowing water downstream so as not to hit the air bag 4 or the band 28. 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.
On the other hand, the air compressor 45 is stopped, the air supply on-off valve 43 is closed, and the exhaust on-off valve 40 is opened, so that the air having the pressure inside the air bag 4 is released by the exhaust flow control valve 41. FIG. 3 is a cross-sectional view showing a state in which the door body 11 is completely laid down as a result of release into the atmosphere from the exhaust discharge section 42 while controlling.
In this state, the earth and sand may flow down the bottom of the waterway violently. Therefore, the water stop metal 20 installed on the foundation concrete 19 immediately upstream along the bearing / holding plate 3 is used to reinforce the drop of the foundation concrete 19. It also has a function.
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, showing an upright state, and FIG. FIG. 8 is an explanatory view of an assembled state of a bearing / holding plate, a rotating shaft, and a door body, and FIG. 9 is an explanatory view of an air bag.
6 and 7, at the bottom of a channel having a rectangular cross section, a bolt 63 screwed into a vertical female screw 62 provided in a row of anchor metal members 61 installed across the channel has a bearing / holding plate 3. By pressing the edge 5 of the open side of the air bag 4 by the convex part 64 on the bearing side of the anchor against the convex part 65 on the downstream side of the anchor hardware 61, the open side of the air bag 4 is sealed and 4 is fixed to the anchor 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.
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 further the bolt 63 is screwed, the more the bearing / pressing plate 3 is screwed. Since the convex portion 64 on the bearing side of 3 presses the edge 5 of the open side of the air bag 4 more strongly, the sealing and fixing of the open side of the air bag 4 are ensured.
Further, the bearing 10 protruding from the downstream edge 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 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.
On the other hand, one side of one rubber plate 16 is fixed to the upper surface of the water stopping portion 73 of the anchor hardware 61 by the holding plate 17 and the bolt 18, and the other side is fixed to the door 11 by the holding plate 21 and the bolt 22. At the same time as the upper surface of the lower plate, and at the middle thereof, the upper surface of the bearing and holding plate 3 by means of the holding plate 23 and the bolt 24, thereby preventing water leakage between the bearing and holding plate 3 and the door body 11.
In addition, a belt 28 made of a rubberized cloth having sufficient strength and having one end fixed to the upper surface 27 of the concrete with an anchor bolt 25 and a holding plate 26 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 29 and the holding plate 30, 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 28.
Next, since the bent portion 31 of the head of the door body 11 guides the water flowing over the door body 11 downstream and drops it when standing up, the overflowing water and the garbage flowing down together with It protects the driftwood and the like from directly hitting the air bag 4 and the belt 28. Further, at the time of falling down, the tip of the bent portion 31 of the head of the door body 11 is supported by the support hardware 32 to secure a necessary space between the upper surface 27 of the concrete and the door body 11. 28 is not crushed by the door 11.
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 to the upstream surface of the door body 11 by welding in a direction perpendicular to the flow of water at a right angle. At a necessary place in the reinforcing steel plate 70, the connection steel plate 72 is extended to above the bent portion 31, and is connected to the spoiler 71 protruding at the tip of the bent portion 31. The spoiler 71 prevents low-frequency noise that may be generated when water flowing over the door body 11 falls from the bending portion 31. 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.
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 rotary shaft 13, and the holding plate 3 serving as a bearing.
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.
With the above construction, the air pipe 39 connected to the base 38 at the lower part of the air bag 4 is buried in the concrete of the waterway and led to the land, and the exhaust opening / closing valve 40 of the air operating device, As shown in FIGS. 6 and 7, the air flow control valve 41, the exhaust discharge section 42, the air supply opening / closing valve 43, the air supply flow control valve 44, and the air compressor 45 are connected.
Then, air is injected into the air bag 4 from the air compressor 45 via the air supply flow control valve 44, the air supply opening / closing valve 43, and the air pipe 39, and as a result, the door 11 is raised. FIG. 6 is a cross-sectional view showing a state in which the bent portion 31 of the head of the door body 11 functions to guide the overflowing water downstream and not hit the air bag 4 or the band 28.
On the other hand, the air compressor 45 is stopped, the air supply on-off valve 43 is closed, the exhaust on-off valve 40 is opened, and the air having the pressure inside the air bag 4 is released by the exhaust flow control valve 41. FIG. 7 is a cross-sectional view showing a state in which the door body 11 is completely laid down as a result of release into the atmosphere from the exhaust discharge section 42 while controlling.
[0033]
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,
It is used as a part that achieves three main functions. In addition, a rubber plate for forming the lower watertightness is extended in the upstream direction from the bearing / holding plate 3 and attached to the upper surface of the waterproof metal fitting 20 installed on the foundation concrete 19 with bolts and a holding plate, so that the air bag is closed to the lower watertightness. Because of the unrelated structure, it was possible to obtain an undulating gate that can easily secure watertightness while having a very simple structure with a small number of parts and an inexpensive structure.
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.
In addition, as an effect of adopting the bearing / holding plate 3, there is an economic effect that the 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.
As described above, the undulating gate of the present invention is very economical, has the same strength and durability as the conventional steel undulating gate, and has good watertightness.
[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 19 foundation concrete 20 water stop metal 21 holding plate 22 bolt 23 holding plate 24 bolt 25 anchor bolt 26 holding plate 27 upper surface 28 band 29 bolt 30 holding plate 31 bending part 32 support base 33 hole 34 female screw 35 female screw 36 hole 37 hole 38 Base 39 Air pipe 40 Exhaust on-off valve 41 Exhaust flow control valve 42 Exhaust discharge unit 43 Air supply on-off valve 44 Air supply flow control valve 45 Air compressor 61 Anchor hardware 62 Female screw 63 Bolt 64, 65 Convex part 66, 67 corner 68,69 convex part 70 reinforcing steel plate 71 spoiler 72 connecting steel plate 73 water shut off part

Claims (4)

a) A vertical anchor bolt and a bearing presser plate, which are installed side by side across the bottom of a waterway having a rectangular cross section, are made of an air bag made of a rubberized cloth made of a flat rectangular shape with three sides closed and one side open. By pressing the open side against the bottom of the waterway, the airbag is fixed to the bottom of the waterway while sealing the open side.
b) The bearing projecting downstream from the bearing / holding plate has 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, the lower part of the upstream surface of the steel plate door, and the upper surface of the water stopping metal provided on the upstream foundation concrete along the bearing / holding plate. It is attached with a bolt and a holding plate, respectively, to prevent water leakage between the bearing / holding plate, the door made of steel plate and the waterproofing metal of the foundation concrete.
d) Connect the other end of the 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, to the downstream side of the steel plate door. By fixing with a bolt and a holding plate at an appropriate position above the contact of the air bag on the surface, the door body is stopped by the tension acting on this band when the door body stands up to a predetermined posture. .
With this configuration, an air pipe is connected to the air bag from the air operating device on land and the 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 flattened and the door body falls down. 2. The undulating gate according to claim 1, wherein a bolt and a screw which are screwed into a vertical female screw provided side by side on an anchor hardware installed across the bottom of the channel instead of the vertical anchor bolt provided side by side across the bottom of the channel. The holding plate is made into a flat rectangular shape, with three sides closed and one side open, and the open side of an airbag made of rubberized cloth is pressed against an anchor hardware to seal the open side and remove air. An undulating gate, wherein the bag is fixed to an anchor hardware. 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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