JP4096708B2 - Rolling gate - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to an undulation gate used for the purpose of weiring or discharging flowing water by allowing a steel door body having a rotation center on the upper surface of foundation concrete to stand up or fall freely.
[0002]
[Prior art]
Conventionally, as a undulation gate, a wire rope or chain is attached to the head of a steel door body with a sufficiently strong cross or vertical girder against a steel plate subjected to water pressure, and this is rolled up on land. Various types have been developed, such as a type that winds up or rewinds with a machine to stand up or falls, and a similar steel door body is pushed up by a hydraulic jack to stand up, or a hydraulic jack is shrunk to fall down Have been used.
[0003]
Recently, anchor bolts and presser plates placed side by side on the bottom of the water channel have been installed on the bottom of the water channel while sealing the open side of the rubber-filled air bag made of a flat rectangle with three sides closed and one side open. By pressing, the open side of the air bag is sealed and fixed to the bottom of the water channel, so that the undulation movement can be freely performed by the rotation center located along the downstream edge of the press plate and on the upper side of the air bag. A pneumatic hoisting gate is also widely used, in which the installed steel plate door body is inflated by sending compressed air into the air bag, or by discharging air with internal pressure and shrinking. It became so.
[0004]
This type of relief gate is strong against the load on the relief gate by the steel door body that has been used in the past, is wear resistant, and is stable even in an intermediate standing posture. Therefore, it is an undulating gate that has the characteristics of being economically excellent because it supports the gate continuously in the width direction, and is very inexpensive and easy to handle.
[0005]
[Problems to be solved by the invention]
By the way, in these undulating gates, the length of the foundation concrete in the direction of water flow at the place of installation is required to be about 1.5 times the height of the water to be weired. That is, since the angle at which the steel door body stands is 60 ° to 70 ° with respect to the horizontal, the oblique length of the steel door body is about 1.2 times the height of the weir water, When the space for constituting the rotation center is included, the required dimension in the water flow direction when the steel door body is overlaid is about 1.5 times the height of the weir water. The undulation gate provided in the river is provided with a downstream water hammer and an upstream / downstream protective floor, so that the river work is generally 5 to 10 times longer than the height of the water to be dammed.
[0006]
These hoisting gates are now installed at the top of the side wall of the irrigation canal and kept standing at all times, and if necessary, lie down at the top of an artificial structure such as lying down and diverting to the side of the canal. When installing a gate, the length of the foundation concrete in the direction of water flow increases the necessary site and limits the installation, and the construction becomes large due to the large structure. It was a cause and a malfunction.
[0007]
[Means for Solving the Problems]
Therefore, in the relief gate of the present invention, a steel door having a substantially L-shaped cross section in which two steel plates are joined is used.
[0008]
That is, one side of the substantially L-shape shares the function of weiring or discharging water as a conventional steel door body, and the other side is continuously supported by an air bag to control the air pressure. It has a function to convert it into an operating force that moves the body up and down. If it does in this way, the back surface of the side wall of the canal will fulfill the function of supporting the air bag that performs the operation of raising or lowering the steel door body having a substantially L-shaped cross section and the bearing plate by expansion and contraction. As a result, the effect of significantly reducing the horizontal dimension of the gate structure can be obtained.
[0009]
However, in this case, since the contracted air bag hangs down along the back surface of the side wall, a drop on the downstream side of the gate is required to accommodate this.
In other words, it succeeded in switching the required dimension for the installation of the gate horizontally deployed in the direction of the water flow to the vertical direction.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a pneumatic undulation gate according to the present invention will be described below in detail with reference to the drawings.
1, FIG. 2, FIG. 3, FIG. 4 and FIG. 5 show one embodiment of this pneumatic relief gate, FIG. 1 is a front view of the pneumatic relief gate, and FIG. 2 is a cross section of the pneumatic relief gate. FIG. 3 is a sectional view of a pneumatic undulation gate and shows a lying state, FIG. 4 is an explanatory view of a door body and a bearing plate, and FIG. 5 is an explanatory view of an air bag.
[0011]
1, 2, and 3, the vertical anchor bolts 2 arranged in a row on the flat surface 1 at the top of the water channel wall are closed on the three sides by the presser plate 3 of the air bag, and one side is opened. By pressing the edge 5 of the open side of the air bag 4 made of rubberized fabric made into a flat rectangle against the flat surface 1 at the top of the water channel wall, the water channel wall is sealed while sealing the open side of the air bag 4 Secure to the flat surface 1 of the top of the top.
[0012]
On the upper surface 6 of the presser plate 3 of the air bag, an intermediate portion of a rubberized cloth-made connecting plate 7 having a sufficient strength is firmly fixed by a holding plate holding plate 8 and bolts 9 and the downstream edge thereof is fixed. It is firmly fixed by a bolt 11 and a presser plate 12 to the lower part of the upstream surface of the steel plate door body 10 having a width direction dimension slightly smaller than the weir width and a length necessary for securing the standing height required for standing. The steel plate door body 10 is connected to the air bag holding plate 3 in a undulating manner, and the upstream side of the connecting plate 7 is provided along the air bag holding plate 3 at the top of the water channel wall. The water metal 13 is fixed by bolts 14 and a holding plate 15 to prevent water leakage between the water stopping metal 13 at the top of the water channel wall, the air bag holding plate 3 and the steel door 10.
[0013]
In addition, at the lower end on the downstream side of the steel plate door body 10, the door body is attached with a steel plate bearing plate 16 that protrudes at an angle of approximately 90 ° and is interposed between the air bag 4 and the door body 10. 10 and the bearing plate 16 have a substantially L-shaped cross section as a whole, and the air bag 4 expands or contracts while contacting the bearing plate 16 made of steel plate, so that the bearing plate 16 and the door body 10 are brought together. Try to stand or surrender.
[0014]
With this configuration, the air pipe 18 connected to the base 17 at the bottom of the air bag 4 is led to a high place by burying it in the concrete of the water channel wall, etc. The flow control valve 20, the exhaust discharge part 21, the supply air on / off valve 22, the supply air flow control valve 23, and the air compressor 24 are connected.
[0015]
Then, as a result of press-fitting air from the air compressor 24 into the air bag 4 via the air supply flow rate adjustment valve 23, the air supply on-off valve 22, the air pipe 18, and the base 17, the door body 10 is erected. FIG. 1 is a front view of this state, and FIG. 2 is a cross-sectional view thereof. As a result of the inflated air bag 4 pushing up the bearing plate 16 to a substantially horizontal posture, the door body 10 which is coupled to the bearing plate 16 at an angle of about 90 ° and is substantially L-shaped as a whole has a substantially vertical posture. Thus, the water inside the water channel is prevented from flowing out.
[0016]
At this time, at the lower part of the door body 10, the connecting plate 7 also functions as a watertight rubber to prevent water leakage between the water stop fitting 13, the air bag retainer plate 3, and the door body 10, and the side end of the door body 10. Then, the side watertight rubber 25 is attached by a presser plate 26 and a bolt 27, and the tip of the side watertight rubber 25 keeps an appropriate contact with the side wall surface 28, thereby preventing water leakage at this portion.
In addition, a stop projection 29 protrudes from the side wall surface 28 and comes into contact with the presser plate 26 to prevent further standing.
[0017]
On the other hand, the air compressor 24 is stopped, the air supply on-off valve 22 is closed, the exhaust on-off valve 19 is opened, and the air having the pressure inside the air bag 4 is controlled by the exhaust flow control valve 20. FIG. 3 is a cross-sectional view showing a state in which the door body 10 has completely fallen down as a result of being released from the exhaust emission part 21 into the atmosphere.
In this state, the outer surface 30 of the water channel wall supports the pressure-bearing plate 16 via the contracted air bag 4, and at the same time, since the connecting plate 7 anchors the door body 10, it is generally joined in an L-shape. The door body 10 and the pressure bearing plate 16 are in a posture in which the door body 10 is inclined downward, and the water inside the water channel is likely to flow out to the outside of the water channel.
[0018]
FIG. 4 is an explanatory diagram of the door body 10 and the bearing plate 16. In order to improve the bending rigidity in the lateral direction, the bearing plate 16 joined at an angle of 90 ° at the lower end of the downstream surface of the door body 10 having the bent portion 31 at the front end portion is bent in the lateral direction in the same manner as the door body 10. In order to improve the rigidity, a 90 ° bent portion 32 is provided at the tip.
Further, along the lower end of the door body 10, there are bolt holes 33 matched with the bolts 11 for fixing the connecting plate 7, and along both side ends there are female threads 34 matched with the bolts 27 for fixing the side watertight rubber.
[0019]
FIG. 5 is an explanatory diagram of the air bag 4. The air bag 4 is made into a flat rectangle with three sides closed and one side opened by a rubberized cloth. The three closed sides have an appropriate bending radius because the rubber and the reinforcing fiber bend while maintaining an integral joint without difficulty. On the side where the air bag 4 is open, a hole 35 through which the anchor bolt 2 passes passes through two rubberized cloths. Further, the base 17 is attached by selecting a place that always contacts the water channel wall near the open side.
[0020]
6, FIG. 7, FIG. 8, FIG. 9 and FIG. 10 show another embodiment of the pneumatic relief gate according to the present invention. FIG. 6 is a front view of the pneumatic relief gate, and FIG. 8 is a sectional view showing a lying state, FIG. 9 is an explanatory view of a square steel pipe functioning as a door body and a bearing plate, and FIG. 10 is an explanatory view of an air bag.
[0021]
6, 7, and 8, the vertical anchor bolts 2 arranged in a row on the flat surface 1 at the top of the channel wall are closed by the holding plate 8 of the connecting plate, and three sides are closed and one side is opened. The edge 5 of the open side of the air bag 4 made of rubberized cloth made into a flat rectangle and the middle part of the rubberized cloth connecting plate 7 having sufficient strength are overlapped together to flatten the top of the channel wall. The air bag 4 and the intermediate portion of the connecting plate 7 are fixed to the flat surface 1 at the top of the water channel wall while sealing the open side of the air bag by pressing against the flat surface 1. A suitable position on the downstream side of the connecting plate 7 is a rectangular steel pipe door body / supporting plate having a length in the width direction slightly smaller than the weir width and a side length necessary for securing a standing height required for standing. 51 is firmly fixed to the lower part of the surface 55 for controlling the flowing water by the bolt 11 and the presser plate 12, and the door body / supporting pressure plate 51 is connected to the flat surface 1 at the top of the water channel wall so as to be raised and lowered. The side on the downstream side of the connecting plate 7 extended to the top is fixed to the side 52 which becomes the top end of the door body / supporting plate 51 made of square steel pipe by the bolt 53 and the holding plate 54. In addition, the upstream side of the connecting plate 7 is parallel to the row of anchor bolts 2 and fixed to a water stop fitting 13 provided at the top end of the water channel wall with a bolt 14 and a holding plate 15 to fix the top end of the water channel wall. Water leakage between the water stop fitting 13 and the square steel pipe door body / supporting pressure plate 51 is prevented.
[0022]
Now, the surface 55 for controlling the flowing water of the door body / bearing plate 51 made of square steel pipe and the surface 56 in contact with the air bag 4 are joined at an angle of 90 °. Therefore, when the air bag 4 is inflated, if the surface 56 is pushed up to a horizontal posture, the surface 55 becomes a vertical posture, and the water inside the water channel can be prevented from flowing out. That is, the surface 55 functions as a door and the surface 56 functions as a pressure bearing plate.
[0023]
One of the features of this embodiment is that the function of the presser plate 3 of the air bag and the presser plate 8 of the connecting plate in the embodiment described with reference to FIGS. 1 to 5 is secured by one of the presser plates 8 of the connecting plate. is there. In this case, although the effect of sealing the open side of the air bag 4 is weakened, the mechanism of the anchor bolt 2 and the air bag presser plate 3 and the connecting plate presser plate 8 is simplified, and in addition to the economic efficiency, the anchor bolt There is an advantage that retightening work is easy, and it is effectively used in a small pneumatic undulation gate.
[0024]
Another feature of this embodiment is that the side door latch 58 that protrudes from the side wall surface 28 and is fixed by the anchor bolt 57 has a function of watertightness at the time of standing as well as a function of watertightness at the time of standing up. The stability of the door / bearing pressure plate 51 is improved because the door / supporting plate 51 at the time of falling is supported by the support 60 at the time of falling fixed by protruding from the side wall 28 with the bolt 59.
[0025]
That is, as shown in FIG. 6 and FIG. 7, when the air bag 4 pushes the surface 56 to erect the door body / supporting plate 51, the bolt 11 and the presser are placed below the surface 55 that controls the flowing water of the door / supporting plate 51. After being fixed to the plate 12, the connecting plate 7 and the surface 55 of the door body / supporting plate 51, which are extended along the surface 55 and fixed to the side 52 which becomes the top end by the bolt 53 and the holding plate 54, are provided. Since both side end portions of the side plate 58 come into contact with the side door 58 and the downstream side surface of the presser plate 8 of the connecting plate, the door body / supporting plate 51 stops the standing motion by the reaction force received from the side door 58 and simultaneously connects the connecting plate. 7 and the downstream face of the side door 58 are in close contact with each other, thereby preventing water leakage between them.
In this embodiment, since the side surface 28 and the door body / supporting pressure plate 51 and the connecting plate 7 are not in direct contact with each other, no frictional force is generated between the side body 28 and the door body / supporting pressure plate 51 during the undulation motion. The certainty of operation is improved.
[0026]
With this configuration, the air pipe 18 connected to the base 17 at the bottom of the air bag 4 is led to a high place by burying it in the concrete of the water channel wall, etc. The flow control valve 20, the exhaust discharge part 21, the supply air on / off valve 22, the supply air flow control valve 23, and the air compressor 24 are connected.
[0027]
Then, as a result of press-fitting air from the air compressor 24 into the air bag 4 through the air supply flow rate adjustment valve 23, the air supply on-off valve 22, the air pipe 18, and the base 17, the door body / supporting pressure plate is obtained. FIG. 6 is a front view of the state in which 51 stands up, and FIG. 7 is a sectional view thereof.
As a result of the inflated air bag 4 pushing up the surface 56 of the door body / pressure plate 51 that contacts the air bag 4 to be horizontal, the running water of the door body / pressure plate 51 forms an angle of 90 ° with the surface 56. The controlled surface 55 is in a vertical posture, preventing water inside the water channel from flowing out.
[0028]
On the other hand, the air compressor 24 is stopped, the air supply on-off valve 22 is closed, the exhaust on-off valve 19 is opened, and the air having the pressure inside the air bag 4 is controlled by the exhaust flow control valve 20, FIG. 8 is a cross-sectional view of the state in which the air bag 4 is pushed and contracted by the surface 56 of the door body / supporting pressure plate 51 and the door body / supporting pressure plate 51 is completely laid down as a result of the release from the exhaust emission part 21 into the atmosphere. .
In this state, since the support base 60 at the time of lying down supports both end portions of the surface 62 of the door / supporting plate 51, the door / supporting plate 51 is stable in its posture.
[0029]
FIG. 9 is an explanatory diagram of the door body / supporting pressure plate 51. The lower part of the surface 55 for controlling the flowing water of the door body / supporting pressure plate 51 using a square steel pipe to improve the bending rigidity in the lateral direction as a whole has a bolt hole 33 matched to the bolt 11 for fixing the connecting plate 7, A surface 56 forming an angle of 90 ° along this is a surface 56 with which the air bladder 4 is in contact, and functions as a pressure bearing plate. In addition, a surface 52 that forms an angle of 90 ° with the surface 55 in the upper portion of the surface 55 away from the bolt hole 33 is a side 52 that becomes the top end when standing.
On the surface 52, female screws 61 aligned with bolts 53 for fixing the downstream side of the connecting plate are arranged in a line. The surface 62 is supported by the support platform 60 when lying down.
[0030]
FIG. 10 is an explanatory diagram of the air bag 4. The air bag 4 is made of a rubberized cloth in a flat rectangle with three sides closed and one side open. On the three closed sides, the rubber and the reinforcing fiber have an appropriate bending radius for bending while maintaining an integral joint without difficulty. Further, at the opened side, a hole 35 through which the anchor bolt 2 penetrates penetrates two rubberized cloths. Further, a base 17 is attached at a position close to the open side near the center of the width and always in contact with the channel wall.
[0031]
【The invention's effect】
According to the pneumatic undulation gate of the present invention, a separate steel plate in which the door body that controls the flowing water and the pressure bearing plate that receives the force that supports the door body by contacting the air bag are combined at an angle of about 90 ° is used. This makes it possible to install a pneumatic undulation gate at the top of a flat structure with a narrow width like the top of the channel wall.
[0032]
Such pneumatic undulation gates are limited to small ones with an effective height of about 1 m or less, but they are very economical to be used when adding spillways or diversion gates to existing waterways. It provides excellent construction technology.
[Brief description of the drawings]
FIG. 1 is a front view of a pneumatic undulation gate according to an embodiment of the present invention in a state where the undulation gate is raised.
FIG. 2 is a cross-sectional view of a state in which a relief gate is raised.
FIG. 3 is a cross-sectional view of a state in which the undulating gate has fallen down.
FIG. 4 is an explanatory diagram of a door body and a bearing plate of a hoisting gate.
FIG. 5 is an explanatory diagram of an air bag.
FIG. 6 shows another embodiment of the pneumatic undulation gate according to the present invention, and is a front view of the undulation gate standing upright.
FIG. 7 is a cross-sectional view of a state in which the undulating gate is raised.
FIG. 8 is a cross-sectional view of a state in which the undulation gate has fallen down.
FIG. 9 is an explanatory diagram of a square steel pipe that functions as a door body and a bearing plate of an undulating gate.
FIG. 10 is an explanatory diagram of an air bag.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Flat surface 2 Anchor bolt 3 Air bag presser plate 4 Air bag 5 Edge 6 Upper surface 7 Connecting plate 8 Connecting plate presser plate 9 Bolt 10 Door body 11 Bolt 12 Presser plate 13 Water stop fitting 14 Bolt 15 Presser plate 16 Support Pressure plate 17 Base 18 Air pipe 19 Exhaust on / off valve 20 Exhaust flow control valve 21 Exhaust discharge part 22 Supply air on / off valve 23 Supply air flow control valve 24 Air compressor 25 Side watertight rubber 26 Press plate 27 Bolt 28 Side wall surface 29 Standing Protrusion 30 Surface 31 Bent Part 32 Bent Part 33 Bolt Hole 34 Female Screw 35 Hole 51 Door Body / Supporting Pressure Plate 52 Side 53 as a Top End Bolt 54 Presser Plate 55 Face 56 Face 57 Anchor Bolt 58 Side Door Tooth 59 Anchor Bolt 60 Supporting Base 61 at Overlay 61 Female Screw 62 Surface

Claims (4)

An open side of an air bag made of rubberized cloth made into a flat rectangle with three sides closed and one side opened by an anchor bolt and air bag retainer placed side by side on the flat surface at the top of the water channel. By pressing against the top of the wall, the open side of the air bag is sealed and fixed to the top of the channel wall.
After firmly fixing the intermediate part of the connecting plate made of rubberized cloth having sufficient strength on the upper surface of the holding plate of the air bag with the holding plate and the bolt of the connecting plate, the downstream edge is slightly smaller than the weir width The air bag retainer is firmly fixed to the lower part of the upstream surface of the steel door with the dimensions in the width direction and the length required to secure the standing height required for standing by bolts and a retainer plate. A steel plate door is connected to the plate in a undulating manner, and at the same time, the upstream edge of the rubberized cloth connecting plate is bolted to a water stop fitting provided at the top of the water channel wall along the holding plate of the air bag. By fixing with the presser plate, water leakage between the water stop hardware at the top of the water channel wall, the presser plate of the air bag and the steel plate door body is prevented.
In addition, a steel plate bearing plate that protrudes at an angle of about 90 ° to the lower end of the downstream side of the steel plate door body and is interposed between the air bag and the steel plate door body is joined to form a substantially L The air bag is inflated or contracted while being in contact with the steel plate bearing plate so as to have a letter-shaped cross section, so that the bearing plate and the door body stand up or fall together.
With this configuration, if an air tube is connected from the air operating device on land to the air bag, and compressed air is fed into the air bag from the air operating device, the air bag expands to support the steel plate. If the steel plate door is erected through the pressure plate, and the air is discharged from the air bag, the air bag is bent into a flat rectangular shape while being folded, and between the back wall of the channel wall and the steel plate bearing plate. Pneumatic type undulation gate, characterized in that the door made of steel plate is overlaid. 2. The pneumatic undulation gate according to claim 1, wherein the open side of the air bag and the middle part of the connecting plate are overlapped by the anchor bolts arranged side by side on the flat surface of the top of the channel wall and the holding plate of the connecting plate. The air is characterized in that the air bag and the middle part of the connecting plate are fixed to the top of the water channel wall while sealing the open side of the air bag by pressing against the top of the water channel wall together. Pressure relief gate. The pneumatic undulation gate according to claim 1 or 2, wherein when the door body and the support plate stand upright on the side wall surface that determines the gate weir width, the side end portion on the upstream side of the door body is supported and further The side doors that come into contact with each other to prevent standing motion and prevent water leakage between the door body side edge and the side wall are projected, and in addition, when the door body and the bearing plate fall down, the side edge of the door body or bearing plate The support base at the time of lying down that supports the section and prevents further lying down movement is projected, and a strip-shaped flat rubber is stuck on the part that contacts the side door when the upstream surface of the side edge of the door rises Pneumatic undulation gate characterized by improved side water tightness. In the pneumatic undulation gate according to any one of claims 1 to 3, the door body and the bearing plate connected so as to have a substantially L-shaped cross section as a whole are made into a square steel pipe door body and bearing plate. Features a pneumatic relief gate.

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