JP3988077B2 - Air bag type undulation gate - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a steel hoisting gate that functions to dam up running water when a steel door body fixed up and down freely at the bottom of a water channel stands up, and to discharge when the steel door body falls down. The air bag type hoisting gate which performs hoisting movement by sending compressed air into the air bag provided at the base portion on the downstream side of the steel door body along with the air bag or inflating or discharging the air bag. .
[0002]
[Prior art]
In the air bag type undulation gate, the air bag is made of a rectangular rubberized cloth with three sides closed and one side open, and the length of the opened side matches the weir width of the undulation gate.
By pressing the open side of the air bag to the bottom of the channel with anchor bolts and presser plates placed side by side on the bottom of the channel, the open side is sealed to the bottom of the channel while being sealed, By connecting an air pipe and injecting air into the air bag to inflate or discharge and reduce it, it has a rotation center at a position along the anchor bolt at the bottom of the water channel and is installed at a position that covers the air bag The standing steel door body is raised or laid down.
[0003]
In such air bag type undulation gates, air bags are distributed over the entire width of the water channel, and when supporting the steel door body from the downstream side, the load is not concentrated, so the steel door body is a steel plate. The required strength can be secured with a simple structure, such as a bent steel plate or a steel plate welded with a rib in the direction of running water at a right angle to the upstream surface. is there.
[0004]
As for water tightness in such air bag type undulation gates, the air bag is made of rubberized cloth between the bottom of the water channel and the air bag or between the air bag and the presser plate, so that the contact is good and a good water tight state is obtained. .
[0005]
[Problems to be solved by the invention]
However, even if the installation is completed, a gap remains between the side end of the part pressed against the bottom of the water channel with the side presser plate that is manufactured with the air bag open and filled with liquid coking, etc. However, there may be a problem that water leakage does not stop.
This means that the amount of deformation when the side where the air bag is opened is pressed against the bottom of the water channel by the anchor bolt and the holding plate is unstable and cannot be treated with the skill of the operator, and the shape of the air bag needs to be improved. it is conceivable that.
[0006]
[Means for Solving the Problems]
Therefore, in the air bag type undulation gate of the present invention, the two edges of the open side of the rubberized fabric air bag made of a flat rectangle with three sides closed and one side opened are adhered to each other in close contact with each other. In the above, it is a flat surface with end faces arranged on both sides outside the side of the open side, and the width dimension of the part fixed to the bottom of the water channel of the air bag is matched with the weir width of the air bag type undulation gate with high accuracy. It was decided to provide a rubber protrusion.
In this way, it becomes easy to make a good close contact state with the side door hardware and the water channel bottom at both side ends of the side manufactured with the air bag open, and a good water tight state regardless of the skill of the operator Is secured.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the air bag type undulation gate of the present invention will be described in detail with reference to the drawings.
FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5 and FIG. 6 show one embodiment of this air bag type relief gate, FIG. 1 is a rear view of the air bag type relief gate, and FIG. FIG. 3 is a sectional view of the air bag type undulation gate and shows a lying state, FIG. 4 is an explanatory view of the door body, and FIG. 5 is an explanatory view of the air bag. FIG. 6 is an explanatory view of the air bag just manufactured.
[0008]
1, 2, and 3, vertical anchor bolts 2 arranged in a row across the water channel on the concrete upper surface 1 at the bottom of the water channel having a rectangular cross section discharge air by the holding plate 3 that also serves as a fixing base. By pressing the edge 5 of the open side of the rubber-filled air bag 4 which is reduced to a flat rectangle and closed on one side against the top surface 1 of the concrete at the bottom of the water channel, The air bag 4 is fixed to the upper surface 1 of the concrete at the bottom of the water channel at the same time as the open side is sealed.
[0009]
Next, one side of a rubberized cloth-made connecting plate 6 having sufficient strength is firmly fixed to the upper surface of the fixing table / holding plate 3 by a bolt 7 and a holding plate 8, and the other side is a steel plate door 9. The steel plate door body 9 is connected to the fixing table / holding plate 3 in a undulating manner, and at the same time, water leakage between the two is prevented. .
In addition, it is made of rubberized cloth having sufficient strength with one end fixed to the top surface 12 of the concrete with anchor bolts 13 and presser plates 14 installed on the concrete top surface 12 at an appropriate position downstream of the air bag 4 at the bottom of the water channel. The other end of the belt 15 is fixed to an appropriate position above the position where the air bag 4 on the downstream surface of the door body 9 is in contact with the bolt 16 and the holding plate 17 so that the door body 9 stands up to a predetermined position. When doing so, the door body 9 is stopped by the tension acting on the band 15.
[0010]
Next, the bending portion 18 at the head of the door body 9 guides the water that overflows the door body 9 to the downstream side when standing up, so that the water that overflows and the driftwood that flows down together with the air bag 4 or the belt. Protect against hitting 15 mag.
Further, at the time of falling down, the tip of the bending portion 18 at the head of the door body 9 is supported by the support base 19, and the necessary space is secured by the upper surface 1 of concrete, the upper surface 12 of concrete, and the door body 9. The bag 4 and the band 15 are not crushed by the door body 9.
[0011]
As shown in FIG. 4, the steel plate door body 9 has a width direction dimension slightly smaller than the weir width and a length necessary for securing a standing height required for standing up. A bent portion 18 is formed at the head of the door body 9 and the lower end thereof is welded with a round steel bar 20 having a diameter substantially equal to the thickness of the fixing plate / holding plate 3 to cause the door body 9 to move up and down. The lower end of the door body 9 makes the upper surface 21 of the air bag 4 easy to slide. Further, a female screw 22 for screwing the bolt 10 for fixing the connecting plate 6 is arranged in a line in a portion along the round bar steel 20 of the steel plate door body 9, and above the bolt 16 for fixing the belt 15. There are combined bolt holes 23.
[0012]
As shown in FIG. 5, when the air is discharged, the width of the air bag 4 manufactured to be a flat rectangle is slightly smaller than the gate width, and in the direction perpendicular to this, the door is when inflated. It has sufficient dimensions to push up the body 9.
The rubberized cloth is continuously bent and closed on the three sides other than the side that has been opened and is to be pressed by the fixed base / holding plate 3. Moreover, the edge 5 of the two rubberized cloth which opposes is crimped | bonded by the open edge | side. In the open side, the width dimension is slightly increased due to the crimping of the edge 5, and the width dimension of the portion fixed to the bottom of the water channel of the air bag is a flat surface having an end face outside the side end portion. A rubber protrusion 24 is provided for accurately matching (B) with the weir width of the undulating gate.
A hole 25 through which the anchor bolt 2 penetrates passes through the edges 5 of the two rubberized cloths in parallel with the edges 5 of the crimped open and manufactured sides. A base 26 is attached near the center of the rubberized cloth below the air bag 4.
[0013]
With this configuration, the air pipe 27 connected to the base 26 at the bottom of the air bag 4 is led to land by burying it in the concrete of the water channel, etc., and the exhaust control valve 28 of the air operating device, the exhaust flow rate control 2 and 3 are connected to the valve 29, the exhaust discharge part 30, the supply air on-off valve 31, the air supply flow rate adjustment valve 32, and the air compressor 33.
[0014]
Then, as a result of press-fitting air into the air bag 4 from the air compressor 33 via the air supply flow rate adjustment valve 32, the air supply opening / closing valve 31, and the air pipe 27, the door body 9 is in a standing state. The sectional view is FIG. 2, and the bending portion 18 of the head of the door body 9 functions so as to guide the overflowing water downstream and not hit the air bag 4 or the band 15.
FIG. 1 shows this state viewed from the downstream side, and the air bag 4 is located at the base portion on the downstream side of the door body 9 and supports the door body 9 in almost the entire width.
[0015]
On the other hand, the air compressor 33 is stopped, the supply on / off valve 31 is closed, the exhaust on / off valve 28 is opened, and the air having the pressure inside the air bag 4 is controlled by the exhaust flow control valve 29. FIG. 3 is a cross-sectional view showing a state in which the door body 9 is completely laid down as a result of being released from the exhaust emission part 30 into the atmosphere.
In this state, earth and sand or the like may drastically flow down the bottom of the water channel, and therefore, an angle steel 35 is provided for reinforcement at the head of the water channel bottom 34 immediately upstream along the fixing plate / holding plate 3.
[0016]
FIG. 6 is an explanatory diagram of the air bag just manufactured. The air bag 4 made of rubberized cloth is arranged in a plate-shaped core with a raw rubber sheet and reinforcing yarns arranged in parallel without gaps and bonded with raw rubber according to the design, and the shape is adjusted with a vulcanizing can. Pressurized and heated to create a flat air bag made of rubberized cloth.
At this time, the air bag made into a flat rectangle is inflated into a shape close to a cylindrical shape with air being injected into the inside, and it is necessary for the reinforcing yarn to act effectively in this state. The basic unit is a pair of directions inclined at an angle of about 54 ° with respect to the open side.
Accordingly, the rubberized cloth is continuously bent and closed on the three sides of the air bag 4 made into a flat rectangle, but one side is opened for the removal of the core.
In other words, the edges 5 of the two rubberized cloths facing each other are separated by the thickness of the plate-shaped core on the side that is produced by opening.
The air edge of the present invention shown in FIG. 5 is provided with rubber protrusions 24 provided on the outer sides of both sides, after the edge 5 of the side manufactured by opening is brought into a state of being crimped by the holding plate / holding plate 3. It is the air bag 4 of a bag type relief gate.
[0017]

【The invention's effect】
According to the air bag type undulation gate of the present invention, the open sides of the rubber-filled air bag made of a flat rectangle with three sides closed and one side opened are pressure-bonded and sealed and bonded to both sides. by providing the projections of the rubber of the plane end face on the outer side is equipped end, it is possible to accurately match the width dimension of the portion secured to the waterway bottom of the air bladder in dam width undulations gate Therefore, an air bag type undulation gate with stable performance that completely prevents water leakage from the side end of the rubber bag made of air bag was realized.
[0018]
In addition, the side of the air bag that has been opened as described above is crimped, sealed, and bonded, and then a rubber protrusion is provided on the outside of the side end, and the width of that part is set to the width of the relief gate. Since the width of the other part of the air bag is accurately matched to the weir width because it is accurately matched to the weir width, the side edge of the closed side of the air bag is the side door when the air bag expands and contracts. It was also possible to prevent malfunctions coming into contact.
In addition, the air bag that is in close contact and bonded in the factory before installation improves the sealing of the side that is manufactured, and even if it is pressed with anchor bolts and presser plates, the creep phenomenon causes looseness and leakage. Could also be reduced.
[0019]
As described above, the air bag type undulation gate of the present invention can surely improve the water tightness of the conventional air bag type undulation gate excellent in safety, durability, economy and the like.
[Brief description of the drawings]
FIG. 1 is a rear view of an air bag type undulation gate according to an embodiment of the present invention in a state where the air bag type undulation gate is raised.
FIG. 2 is a cross-sectional view of a state in which an air bag type undulation gate is raised.
FIG. 3 is a cross-sectional view of a state in which the air bag type undulation gate is overlaid.
FIG. 4 is an explanatory view of a door body of an air bag type undulation gate.
FIG. 5 is an explanatory diagram of an air bag according to the present invention.
FIG. 6 is an explanatory diagram of an air bag just manufactured.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Top surface of concrete 2 Anchor bolt 3 Fixing board / holding plate 4 Air bag 5 Edge of open side 6 Tie plate 7 Bolt 8 Press plate 9 Door body 10 Bolt 11 Press plate 12 Upper surface 13 Anchor bolt 14 Press plate 15 Band 16 Bolt 17 Presser plate 18 Bending portion 19 Support base 20 Round bar steel 21 Upper surface 22 Female screw 23 Bolt hole 24 Projection portion 25 Hole 26 Base 27 Air pipe 28 Exhaust on-off valve 29 Exhaust flow control valve 30 Exhaust discharge portion 31 Air supply On-off valve 32 Air supply flow control valve 33 Air compressor 34 Channel bottom 35 Yamagata steel

Claims (1)

An air bag is formed by pressing the open side of an air bag made of rubberized cloth made into a flat rectangle with three sides closed and one side open by anchor bolts and presser plates placed side by side on the bottom of the channel. By sealing the open side of the airway and fixing it to the bottom of the water channel, connecting an air pipe from an air operating device on land and inflating by injecting air into the air bag, or by reducing it by discharging In the air bag type undulation gate that has a center of rotation at a position along the anchor bolt at the bottom of the water channel, and the steel door body that is installed at a position that covers the air bag is raised or laid down, the open side of the air bag is It is a flat surface with the end faces arranged on both sides outside the side of the side that is manufactured by opening and manufacturing after being sealed and fixed while being sealed at the bottom of the water channel, and fixed to the water channel bottom of the air bag. the width of the part caused that By providing the projections of the rubber to be precisely matched to the weir width of the gate, the air bag type relief gates, characterized in that a good watertight side end portion of air bag.

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