WO2001051714A1

WO2001051714A1 - Elevating gate

Info

Publication number: WO2001051714A1
Application number: PCT/JP2001/000178
Authority: WO
Inventors: Akio Iida; Yoshio Iida
Original assignee: Akio Iida; Yoshio Iida
Priority date: 2000-01-12
Filing date: 2001-01-12
Publication date: 2001-07-19
Also published as: JPWO2001051714A1; AU2001225524A1

Abstract

A gate operating device having a door body of a gate installed in a water channel and an operating means operating the door body in vertical direction, characterized by comprising a pressure receiving plate installed on the door body through an operating bar, upper and lower side air bags disposed on the upper and lower sides of the pressure receiving plate, an air compressor for feeding air to each of the upper and lower side air bags, and a selector valve and a flow control valve disposed between the upper and lower air bags and the air compressor and switching or regulating the air fed to the upper and lower air bags, wherein compressed air is fed to the air bags to move the pressure receiving plate so as to move the door body in vertical direction in order to open and close the door body, whereby a mechanism can be extremely simplified because air is used as media and the operating bar is driven by the pressure of the air fed to the air bags.

Description

Specification

Undulating gate

Technical field

This description relates to an up-and-down gate used for raising or discharging flowing water in a waterway by standing or falling down by a rotating shaft provided at the bottom of the waterway. Background art

Conventionally, as an undulating gate, a wire rope or chain is attached to the head of a steel door body that has a sufficiently strong horizontal girder or a vertical girder against a steel plate (water stoppage plate) subjected to water pressure. This type is used to wind up or rewind it with a land hoist to raise or lower it, or a similar steel door is pushed up with a hydraulic jack to raise it, and the hydraulic jack is contracted to fall down Have been developed and used.

In recent years, a rubber cylinder reinforced with cloth has been fixed to the channel floor to withstand internal air pressure and external force (such as water pressure and impact force from a falling object). The rubber cylinder swells to rise the running water, and conversely, by opening the on-off valve and releasing the air with the internal pressure, the rubber cylinder collapses flatly due to its own weight and the water pressure, so that the rubber can be damped. So-called rubber weirs, which drain water, have been developed and widely used.

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 cross beams and stringers has good operability and has an intermediate standing position. Although the posture is stable, it is not suitable for large undulating gates and construction costs are high.

In addition, a type that pushes up a steel door reinforced with sufficiently strong horizontal and vertical girders with a hydraulic jack has good operability and is safe even in the middle standing position. It is a rugged gate that is easy to handle and has a gate width of 30 to 40 m, which can be considerably large, as well as sediment, boulders, driftwood, drift ice, etc. This is a highly safe undulating gate that is less likely to be damaged by damage. However, there is a disadvantage that the construction cost is high. In particular, the manufacture, transportation and installation of the slender and heavy 5 steel doors are the main causes of high construction costs.

In addition, if operating oil leaks, it can pollute waterways and pose a social problem.

Another major advantage of rubber weirs is that construction costs are lower than steel door undulating gates. Nevertheless, when constructing a large waterway, the process of manufacturing a slender, heavy rubber tube at the factory and transporting and installing it without damage at the site requires a lot of technical difficulties and a large amount of cost. become.

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 flowing down with water, so it is necessary to constantly monitor and carry out _1B repair work, which is uneconomical. It is.

In addition, the flexible door of the rubber weir has a serious technical disadvantage that it is unstable in the intermediate expansion 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 the collapse of one part precedes, only the collapse of that part proceeds and the part becomes a safe collapse position, so the water that has been dammed up The spill from that point cannot maintain the water surface upstream of the gate.

As described above, a variety of gates have been developed and used in the present invention.However, the present invention has advantages and disadvantages, but solves the technical problems and at the same time makes the invention much more inexpensive. It provides an undulating gate that can be built

^ Yes. Disclosure of the invention

That is, the undulating gate of the present invention is strong against external force (water pressure, impact force from falling objects, etc.) of the undulating gate by the conventionally used steel door, and has abrasion resistance. However, while taking advantage of the advantage of being stable even in an intermediate standing position, the airbag was able to introduce the same economic efficiency as a rubber weir, which continuously supports external forces in the gate width direction. It is an inexpensive gate that is inexpensive and easy to handle.

This will be specifically described below. In other words, use of an air bag pressed down with a protective cloth.

When the undulating gate is fully upright, the angle between the reference line of the door and the horizontal line is designed to be between 70 ° and 90 °, and it is freely mounted on the water floor by the rotating shaft. When is almost horizontal, it is referred to as a falling posture.

In this way, an ideal type of operating device utilizing the pressure of fluid such as air pressure, which supports the door of an undulating gate with a horizontal rotating shaft on the channel floor on the back side (anti-hydraulic side) of the gate. In the cross section that is continuous in the width direction of the gate and is orthogonal to the rotation axis, it is conceivable that the position where the door is supported and the width thereof are constant.

If such an operating device can be used, external forces acting on the steel door body (such as water pressure and impact force from falling objects) will be dispersed and supported over a wide area (because large loads are not concentrated at one location). This is very economical because it can be used without reinforcing the steel plate (without attaching much horizontal and vertical beams).

If such an operating device is used, the force that the steel door receives from the operating device is

It can be easily calculated by [fluid pressure (air pressure, etc.)] X [area of contact between the door and the operating device]. The pressure (fluid pressure, etc.) of the fluid required to counteract the impact force (eg, air pressure) can be easily calculated, making the design and manufacture of the operating device very easy.

An airbag having a cross section like a half-open fan can be conceived as an example that meets the above purpose. In other words, when the rotation axis of the door is considered to be the pivot of the fan, a means for using an air bag having a cross section like a paper portion of a half-open fan is required.

As a means for responding to such a technical need, in the first undulating gate of the present invention, the air bag is pressed by a protective cloth. In other words, put the air bag in the space surrounded by the three members, the back of the door, the upper surface of the base concrete, and the protective cloth stretched with both ends attached at positions approximately the same distance from the rotation axis of both. The protective bag limits the deformation of the air bag, while the air bag contacts the back of the door to support the door. When the door is completely upright, the shape of the air bag will be close to the ideal shape. That is, in a completely upright posture, the moment about the rotation axis of the force acting on the door body is:

a) Moment of force that air bag pushes the door

b) Moment due to the weight of the door

c) Moment of external force such as water pressure acting on the door

d) Moment due to tension acting on the protective cloth

The four elements are balanced, and the door is stationary.

a) balances the extra amount by d) than b) + c) .The larger d) is, the closer the protective cloth is to the plane, and the smaller d) is, the more the protective cloth is shaped like a cylinder with a large radius. And it is close to the ideal form. Even in this case, the shape of the portion of the air bag close to the rotation axis is different from the ideal shape, but the performance of pushing the door is strongly controlled by the shape of the portion far from the rotation axis, so good operation is possible. Functions as a device. When the door is in a half-open or downturned position, the protective cloth bends with a small radius, and the shape of the air bag is not ideal. However, the air bag adheres to the back surface of the protective cloth due to the air pressure inside, so the surface that the air bag contacts the back of the door body and supports the door body increases while preserving the contact surface when fully standing. I do.

Therefore, the shape of the contact surface when calculating the strength of the air pressure required for the air bag to support the door is on the safe side (side) when fully upright. Is very simple.

Also, the second undulating gate of the present invention is a flat unit rubber tube having a height that changes like a piece of paper on a fan, which is connected to a presser foot and a bolt while sandwiching the entire shape holding plate therebetween. Uses elastic flexible tubes that are stacked in layers and integrated.

When the up / down gate is fully upright, the angle between the reference line of the door and the horizontal line is designed to be between 70 ° and 90 °, and the gate is freely mounted on the waterway floor by the rotating shaft. A horizontal position is defined as a falling posture.

In this way, an ideal operating device utilizing the pressure of fluid such as air pressure, which supports the undulating gate door with a horizontal rotation axis on the channel floor on the back side (anti-hydraulic side) of the gate. In a section that is continuous in the width direction of the gate and is orthogonal to the rotation axis, it is conceivable that the position where the door is supported and the width thereof are constant.

If such an operating device is used, the force that the steel door receives from the operating device is [Fluid pressure (air pressure, etc.)] X [Area where the door contacts the operating device] It can be easily calculated, so it resists external forces acting on the door (water pressure, impact force received from falling objects, etc.) The required fluid pressure (eg, air pressure) can be easily calculated, making the design and manufacture of operating devices very easy.

An operation device such as a fan is suitable for the above purpose. In other words, the pivot of the fan is the rotation axis of the door, and each piece of fan paper is an elastic flexible tube, and the bone of the fan connects the elastic flexible tube and the axis of rotation of the door. The holding plate and the end plate of the fan are assumed to be doors. Placing the closed fan horizontally, pulling up the end plate and opening the fan will raise the door, and conversely pushing down the fan end plate and closing the fan will cause the door to fall down.

Since the operating device is conceived in this way, when the elastic flexible tube expands, the cross-sectional shape of the unit rubber tube is flat and the height increases as the distance from the rotation axis increases. The shape is the same (the shape of the closed fan is the same). Also, the elastic flexible tube, which is formed by stacking unit rubber tubes having such a cross-sectional shape while adhering them while ensuring mutual air flow, has a cross-sectional shape like a half-open fan. When the air having the pressure is introduced, the middle part of the elastic flexible tube tends to deform away from the rotation axis. Therefore, the whole shape retaining plate sandwiched between the unit rubber tubes is pulled down near the rotating shaft to prevent this deformation.

At this time, not only a tensile force acts on the entire shape holding plate, but also a metal plate having sufficient strength is preferably used because it is involved in maintaining the shape of the elastic flexible tube. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 shows an embodiment of the undulating gate of the present invention, and is a schematic sectional view of a state where the undulating gate is upright. Figure 2 shows an outline of the state where the undulating gate is lying down. It is a schematic sectional drawing. FIG. 3 is a schematic sectional view showing another embodiment of the undulating gate according to the present invention, in a state where the undulating gate is erected. FIG. 4 is a schematic cross-sectional view showing a state in which the undulating gate is lying down. FIG. 5 shows another embodiment of the undulating gate according to the present invention, and is a schematic sectional view showing a state where the undulating gate is upright. Fig. 6 is a schematic cross-sectional view of the state where the undulating gate is lying down. FIG. 7 shows still another embodiment of the undulating gate according to the present invention, and is a schematic sectional view showing a state where the undulating gate is upright. FIG. 8 is a schematic cross-sectional view showing a state in which the undulating gate is lying down. FIG. 9 is a plan view of the whole shape holding plate. FIG. 10 shows another embodiment of the undulating gate of the present invention, and is a schematic sectional view showing a state where the undulating gate is upright. FIG. 11 is a schematic cross-sectional view showing a state in which the undulating gate is lying down. FIG. 12 is a plan view of the whole shape holding plate. FIG. 13 shows another embodiment of the undulating gate according to the present invention, and is a schematic sectional view showing a state where the undulating gate is upright. FIG. 14 is a schematic cross-sectional view showing a state in which the undulating gate is lying down. FIG. 15 is a plan view of the whole shape holding plate. FIG. 16 is a cross-sectional view showing an upright state of the undulating gate. FIG. 17 is a cross-sectional view showing the undulating gate in a laid state. FIG. 18 is a plan view of the whole shape holding plate. FIG. 19 is a plan view of the mounting plate. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the first undulating gate of the present invention will be described in detail with reference to the drawings.

1 and 2 show an embodiment of the undulating gate according to the present invention. FIG. 1 is a sectional view of the undulating gate and shows an upright state, and FIG. 2 is a sectional view of the undulating gate. The figure shows the falling state.

In FIGS. 1 and 2, the lower horizontal girder 3 of a rectangular cross section at the lower end of a steel plate door 2 having a bent portion 1 including a portion which becomes substantially horizontal when the head is raised. The bearing 4 mounted on the shaft support 6 is rotatably connected to a shaft support 6 by a rotating shaft 5. The shaft support 6 is attached to an assembly girder 8 by bolts 7, and the assembly girder 8 is fixed to a foundation concrete 10 at the bottom of the waterway by an anchor 9. Therefore, the door body 2 is stably supported by the rotating shaft 5 located at the bottom of the waterway, and can be freely raised or lowered.

At the upper part on the back side (anti-hydraulic side) of this door body 2, the upper ends 12 and 13 of the V-shaped airtight sheet 11 and the bent both ends 15 and 16 of the upper airtight sheet 14 are placed. A V-shaped air bag (1 1, 1 2) constructed by superimposing, that is, superposing the upper end 12 and both ends 15, and superposing the upper end 13 and both ends 16 and bonding them together Attach the upper fixing part 18 of the protective cloth 17 together with the upper end part 1 2 and both end parts 15 of 14 4) with the holding plate 19 and bolts 20, and install it on the base concrete 10. Attach the lower fixing part 22 of the protective cloth 17 together with the upper end part 13 and both ends 16 to the fixing material 21 with the holding plate 23 and the bolt 24.

In this way, the space surrounded by the door 2, the protective cloth 17 and the upper surface 25 of the foundation concrete 10 is composed of the V-shaped airtight sheet 11 and the upper airtight sheet 14 A V-shaped air bag (11, 14) is stored, and an air pipe 26 is connected to the bottom.

The air pipe 26 is led to the land by burying it in the foundation concrete 10, etc., and the on-off valve 27 for exhaust, the flow control valve 28 for exhaust, the exhaust discharge section 29, the open / close valve 30 for air supply, Connect them to the air supply flow control valve 31 and the air compressor 32 as shown in Fig. 1 and Fig. 2.

With this configuration, the air compressor (32) passes through the air bag (11, 14) through the air supply flow control valve (31), the air supply on-off valve (30), and the air pipe (26). FIG. 1 is a cross-sectional view showing a state in which the door body 2 stands up as a result of pressurizing air into the container. In Fig. 1, the protective cloth 17 controls the standing posture of the door 2 at the same time as it presses the air bag (11, 14) that is going to move away from the rotating shaft 5 due to the internal air pressure. In addition, the air bag (11, 14) enclosed inside protects the air bag (11, 14) from wind, rain, sunlight, flowing water, driftwood, drift ice, sediment, etc. flowing down the undulating gate. Therefore, it is manufactured using a material that has sufficient tensile strength, weather resistance, wear resistance, and flexibility at low temperatures.

Since the air bag (11, 14) is pressed against the protective cloth 17 by the internal air pressure, the contact between the door body 2 and the upper surface 25 of the base concrete 10 is made by the protective cloth 17 As a result, the air bag (1 1, 14) pushes the door 2, which is advantageous because the air bag (11, 14) is biased toward the portion close to the upper fixing portion 18 and the lower fixing portion 22. In particular, the V-shaped airtight sheet 11 is fixed while being tightly attached to the back of the door 2, so that the upper end of the contact surface of the back of the door 2 and the V-shaped airtight sheet 11 is determined.

Further, the bent portion 1 including a surface that is substantially horizontal when the head of the door body 2 stands up functions so that water flowing over the undulating gate does not directly hit the protective cloth 17. At this time, the bent part 1 of the head includes a surface that is almost horizontal when standing, so that if the door height is the same, the V-shaped air bag (11, 14) or the protective cloth 17 It is possible to move the mounting position to the upper side. In other words, when the door body 2 is completely laid down, the door body 2 that stores and protects the bent V-shaped air bag (11, 14) and the protective cloth 17, the bent part 1, and the basic concrete 1 The position of the V-shaped air bladder (11, 14) and the protective cloth 17 attached to the door 2 can be moved upward while maintaining the function of the upper surface 25 of 0. This has the economic effect of obtaining the required reduction in air pressure. Furthermore, the lower watertight rubber 33 is attached to the lower part of the door body 2 by the holding plate 34 and the bolt 35, and at the same time, is attached to the assembly beam 8 by the holding plate 36 and the bolt 37. To prevent water leakage.

In addition, the air compressor 32 is stopped, the air supply on-off valve 30 is closed, and the exhaust on-off valve 27 is opened, and the air having the pressure inside the air bag (11, 14) is exhausted. FIG. 2 is a cross-sectional view showing a state in which the door body 2 is completely laid down as a result of being discharged into the atmosphere from the exhaust discharge section 29 while being controlled by the flow control valve 28. The bent part 1 including the surface that becomes almost horizontal when the head of the door body 2 stands up is supported by the support member 38 fixed to the basic concrete 10 and reduced to the bent protective cloth 17. The air bladders (11, 14) are stored and protected by the door 2, the bent part 1 of the head, and the upper surface 25 of the base concrete 10.

FIGS. 3 and 4 show another embodiment of the undulating gate according to the present invention. FIG. 3 shows a sectional view of the undulating gate in an upright state, and FIG. 4 shows the undulating gate. FIG. 3 is a cross-sectional view showing a lying state.

In FIGS. 3 and 4, there are several points in the lower cross girder 40 of the lower end of the Z-shaped cross section at the lower end of the steel plate door 2 having a bent part 1 including a surface that is substantially horizontal when the head is raised. The mounted bearing 4 is rotatably connected to a shaft support 6 by a rotating shaft 5. The shaft support 6 is attached to an assembly girder 8 by bolts 7, and the assembly girder 8 is fixed to a foundation concrete 10 at the bottom of the waterway by an anchor 9. Therefore, the door body 2 is stably supported by the rotating shaft 5 located at the bottom of the water channel, and can stand up or down freely.

At the upper part on the back side (anti-hydraulic side) of this door body 2, the upper fixing part 18 of the protective cloth 17 is attached with the holding plate 19 and bolts 20, and the fixing material 21 provided on the foundation concrete 10 Attach the lower fixing section 22 of the protective cloth 17 to the fixing cloth 23 with the holding plate 23 and the bolt 24.

At the same time, the door 2, the protective cloth 17 and the upper surface 25 of the base concrete 10 Select a position to divide the enclosed space into two equal parts in the horizontal direction, attach the dividing cloth 41 to the back of the protective cloth 17 and attach the opposite side to the flange 42 of the Z-shaped lower cross beam 40 Attach it with holding plate 4 3 and bolts 4 4.

In this way, the air bags 45, 46 that fit into each of the spaces surrounded by the door 2, the protective cloth 17 and the upper surface 25 of the base concrete 10 that are almost equally divided into two parts are formed by the protective cloth. At the same time, a part of the air bag is adhered to the back surface of the air bag 17, and the air flow is secured by the air flow tube 47, and the air tube 26 is connected to the lower part of the air bag 46.

The air pipe 26 is led to the land by burying it in the foundation concrete 10, etc., and the on-off valve 27 for exhaust, the flow control valve 28 for exhaust, the exhaust discharge section 29, the open / close valve 30 for air supply, Fig. 3 and Fig. 3 show the air supply flow control valve 31 and the air compressor 32.

4 Connect as shown in the figure.

With this configuration, the air compressor 32 feeds the air supply flow control valve 31, the air supply opening / closing valve 30, the air pipe 26 to the inside of the air bag 46, FIG. 3 is a cross-sectional view showing a state in which the door 2 is erected as a result of pressurizing air from the air bladder 46 through the air bladder 46 via the air bag 47.

In FIG. 3, the protective cloth 17 and the divided cloth 41 function to press the air bladders 45, 46 which are to be moved away from the rotation shaft 5 by the internal air pressure. In addition, the protective cloth 17 functions to regulate the standing posture of the door body 2, and in addition, the air bags 45, 46 enclosed in the upper part can be used to protect the airbags 45, 46 from wind, rain, sunlight, and flowing water or driftwood flowing down the undulating gate. Since it has taken on the role of protecting against drift ice, earth and sand, etc., it should be manufactured using a material that has sufficient tensile strength, weather resistance, abrasion resistance, and flexibility at low temperatures. The split cloth 41 is also made of the same material as the protective cloth 17.

Since the air bags 45 and 46 are pressed against the protective cloth 17 by the internal air pressure, the contact between the door 2 and the air bag 45 is fixed on the protective cloth 17. As a result, the contact between the upper surface 25 of the base concrete 10 and the air bag 46 is shifted to the lower fixing portion 22 of the protective cloth 17, and the air bag 4 5 , 46 is convenient for pushing up the door 2 of the undulating gate.

In addition, the bent portion 1 including a surface that is almost horizontal when the head of the door body 2 stands up functions so that water flowing over the up / down gate does not directly hit the protective cloth 17. Further, the lower watertight rubber 33 is attached to the lower part of the door 2 by the holding plate 34 and the bolts 35, and at the same time, is attached to the assembly beam 8 by the holding plate 36 and the bolts 37, and water leaks out. Has been prevented.

Also, stop the air compressor 32, close the air supply on-off valve 30 and open the exhaust on-off valve 27 to adjust the air with the pressure inside the air bags 45, 46 to the exhaust flow rate. FIG. 4 is a cross-sectional view showing a state in which the door 2 is completely laid down as a result of being discharged from the exhaust discharge section 29 to the atmosphere while being controlled by the valve 28. The bent part 1 including the surface that becomes almost horizontal when the head of the door body 2 stands up is supported by the support member 38 fixed to the basic concrete 10 and reduced to a bent protective cloth 1 mm. The air bladders 45, 46, and the divided cloth 41 are stored and protected by the door body 2, the bent portion 1 of the head, and the base concrete 10.

In this embodiment, the bending of the protective cloth 17 is doubled because of the divided cloth 41, so that the protective cloth 17 can be accommodated in a small storage space. Therefore, the mounting part of the door body 2 and the upper fixing part 18 of the protective cloth 17 can be closer to the bent part 1 of the head of the door body 2, and the result of using a large-sized air bag ,

A) The bending moment generated in the door body 2 is reduced.

B) Air pressure required for operation is reduced.

There are advantages such as. . 5 and 6 show still another embodiment of the undulating gate according to the present invention. FIG. 5 shows a cross-sectional view of the undulating gate in an upright state, and FIG. 6 shows the undulating gate. The cross-sectional view shows the lying state.

In FIGS. 5 and 6, a door 2 having a bent portion 1 including a surface that is substantially horizontal when the head is standing up is provided with a round bar steel having a sufficiently large diameter at the lower end by welding. 0, and the stiffener 51 attached vertically to the surface of the door 2 in a direction perpendicular to the rotation axis 50 on the hydraulic side of the door 2 and attached by welding. The strength is supplemented.

The rotating shaft 50 is supported by bearings 52 having substantially semicircular concave portions provided at several places (about 2 to 5 places). The bearing 52 is attached to the assembling girder 53, and the assembling girder 53 is fixed to the foundation concrete 10 by an anchor 9 and is stable. In addition, a floating and upper prevention plate 54 for preventing the rotating shaft 50 from dropping off from the bearing 52 is firmly attached to the assembly beam 53 with bolts 55. Therefore, the door body 2 is stabilized by the rotating shaft 50 located at the bottom of the water channel, and can be freely raised or lowered.

In addition, a lower watertight rubber 56 is attached to the tip of the floating prevention plate 54 by a holding plate 57 and a bolt 58, and is made to adhere to the rotating shaft 50 to prevent water leakage.

The upper fixing part 60 of the protective cloth 59, which also serves as a part of the air bag, is attached to the upper part of the rear side (anti-hydraulic side) of the door body 2 with the holding plate 19 and bolts 20, and the base concrete Attach the lower fixing part 6 1 of the protective cloth 5 9 to the fixing material 21 provided at 10 with the holding plate 23 and the bolt 24. The rotating shaft side portion 62 of the air bag firmly attached near the upper fixing portion 60 and the lower fixing portion 61 on the back of the protective cloth 5 9 that also serves as a part of the air The sheet is in contact with the upper surface 25 of the REIT 10, and the air pipe 26 is connected to the lower part. Thus, the protective cloth 5 9 and the rotating shaft side 6 2 Together constitute an air bag.

In addition, the air pipe 26 is led to the land by burying it in the foundation concrete 10, etc., and the exhaust on-off valve 27, the exhaust flow control valve 28, the exhaust discharge section 29, the air supply on-off valve 3 0, Connect the air supply flow control valve 31 and the air compressor 32 as shown in Fig. 5 and Fig. 6.

With this configuration, the protective cloth 59 and the rotating shaft side part 6 2 are supplied from the air compressor 32 through the air flow control valve 31, the air supply opening / closing valve 30, and the air pipe 26. FIG. 5 is a cross-sectional view showing a state in which the door body 2 is erected as a result of pressurizing air into the inside of the air bag.

In FIG. 5, the protective cloth 59 tries to move away from the rotary shaft 50 by the internal air pressure together with the rotary shaft side portion 62, but is attached to the door body 2 by the upper fixing portion 60, It does not move because it is attached to the fixing material 21 provided in the base concrete 10 by the fixing unit 61. In addition, the contact portion between the rotating shaft side portion 62 of the air bag and the door 2 is offset to the upper attachment portion 60 of the protective cloth 59, and similarly, the upper surface 25 of the base concrete 10 and the rotating shaft of the air bag. The contact portion with the side portion 62 is offset to the lower fixing portion 61 of the protective cloth 59, which is convenient for pushing up the door 2 of the undulating gate.

The protective cloth 59 functions to suppress the movement of itself due to the internal air pressure, and at the same time, regulate the standing posture of the door body 2 .In addition, wind, rain, sunlight, drifting water, driftwood, drifting ice, Since it is not damaged by earth and sand and also constitutes a part of the air bag, it is manufactured using a material that has sufficient tensile strength, weather resistance, abrasion resistance, flexibility at low temperatures, and airtightness. You.

The rotating shaft side portion 62 of the air bag is made of a material having sufficient tensile strength and airtightness.

In the bent part 1 of the head of the door body 2, the water flowing over the undulating gate is covered with a protective cloth. It works so that you do not hit 5 9 directly.

Further, the air compressor 32 is stopped, the on-off valve 30 for the air supply is closed, and the on-off valve 27 for the exhaust is opened to open the air bag formed by the protective cloth 59 and the rotating shaft side part 62. FIG. 6 is a cross-sectional view showing a state in which the door 2 is completely laid down as a result of discharging air into the atmosphere from the exhaust discharge section 29 while controlling the air having pressure by the exhaust flow control valve 28.

The bent portion 1 including the surface that is substantially horizontal when the head of the door body 2 stands up is supported by the support member 38 fixed to the base concrete 10, and the bent protective cloth 59 The reduced rotating shaft side part 62 is stored and protected by the door body 2, the bent part 1 of the head, and the base concrete 10.

In this embodiment, the height of the undulating gate is increased, and the pressure of the air used is also increased. As a result, it is required that the material for forming the air bag has high strength. This structure is adopted because it is cheaper and easier to handle if it is made integrally rather than separately manufactured and partly bonded.

Embodiments of the second undulating gate of the present invention will be described in detail with reference to the drawings. In FIGS. 7 and 8, a steel door 3 having a bent portion 1 and a water splitting member 2 at its head is provided at several locations (about 2 to 4 locations) on a cross beam 4 at the lower end. It has a rotating shaft 6 supported by a shaft support 5. On the other hand, the rotating shaft 6 is stable because it is supported by the steel plate 8 on the upper surface of the foundation concrete 7 and the bearing 10 attached to the anchoring girder 9. Therefore, the door body 3 is stabilized by the rotating shaft 6 located at the bottom of the waterway, and can be freely raised or lowered.

On the back side (anti-hydraulic side) of this door body 3, attach the mounting flange 1 2 at the upper end of the elastic flexible tube 1 1 with the presser foot 13 and the port 14 and Attach the mounting flange 15 at the lower end to the steel plate 8 on the upper surface of the base concrete 7 with the presser foot 16 and the bolt 17.

The stretchable flexible tube 11 is firmly secured to the assembling flanges 20 and 21 of the unit rubber tubes 18 and 19 by the presser fittings 23 and 24 and the bolt 25 while sandwiching the entire shape holding plate 22 therebetween. The mounting surface of the mounting flange 1 2 and the back of the door 3, the mounting flange 1 5 and the steel plate 8, the assembly flanges 20 and 2 1 and the entire contact surface of the shape holding plate 2 2 are completely airtight. In addition, since the whole shape holding plate 22 is provided with an appropriate number of ventilation holes 26 as shown in FIG. 9, air flow in the entire interior of the elastic flexible tube 11 is appropriately secured. .

By the way, as shown in FIG. 7, the cross-sectional shapes of the unit rubber tubes 18 and 19 are formed so as to increase with distance from the rotating shaft 6 like a closed fan. The overall cross-sectional shape is like a half-open fan.

Accordingly, since the entire elastic flexible tube 11 is deformed in the direction away from the rotating shaft 6 as it is, the retaining rod 27 attached to the lower end of the whole shape retaining plate 22 is rotated by the retaining ring 28 to rotate the rotating shaft 6. To prevent this.

As shown in FIGS. 7 and 8, when the steel plate door 3 rises and falls, the elastic flexible tube 11 expands and contracts, so that the entire shape holding plate 22 is also horizontal. Move while changing the tilt angle. Therefore, connecting the retaining rod 27 at the lower end of the overall shape holding plate 22 to the rotating shaft 6 via the anchoring ring 28 has the effect of smoothing the movement of the overall shape holding plate 22. In particular, when the number of the whole shape holding plates 22 is two or more, the effect is remarkable.

The material of the unit rubber tubes 18 and 19 is flexible, has a predetermined strength, and is impermeable to air. The door body 3 and the presser foot 13, 16 are made of ordinary steel or stainless steel plate, but the overall shape holding plate 22 and the presser foot 23, 24 are preferably light weight. Use reinforced plastic. After being constructed in this way, an air pipe 29 connected to the lower end of the elastic flexible pipe 11 1 is buried in the foundation concrete 7 and led to the land, and the exhaust on-off valve 30 and the exhaust flow control valve are provided. 3 1, exhaust discharge section 32, air supply on-off valve 33, air supply flow control valve 34, and air compressor 35 are connected as shown in Fig. 7 and Fig. 8.

Then, air was injected from the air compressor 35 into the elastic flexible pipe 11 via the air supply flow control valve 34, the air supply opening / closing valve 33, and the air pipe 29. Fig. 7 is a cross-sectional view of the door body 3 with the door body 3 standing.The bent portion 1 of the head of the door body 3 functions so that the overflowing water does not hit the elastic flexible tube 11. The lower watertight rubber 36 is attached to the door body 3 by the holding plate 37 and the port 38, and simultaneously attached to the anchor girder 9 by the holding plate 39 and bolts 40 to prevent water leakage. .

At the top of the door 3, the anchoring part 4 3 above the anchor cord 4 2 is attached with the holding plate 4 4 and the bolt 4 5, and the lower anchoring part 4 6 is attached to the steel plate 8 with the holding plate 4 7. As a result of mounting with the bolts 48, the tension cords 42 generate tension at positions where they do not contact the unit rubber tubes 18 and 19, and regulate the maximum standing posture of the door body 3. In addition, the retaining cord 42 is connected to the distal end 49 of the whole shape retaining plate 22, and the deformation at the time of falling down is also restricted.

On the other hand, the air compressor 35 is stopped, the on-off valve 33 for air supply is closed, the on-off valve 30 for exhaust is opened, and the air having the pressure inside the elastic flexible tube 11 is discharged to the exhaust flow rate. FIG. 8 is a cross-sectional view showing a state in which the door 3 is completely laid down as a result of being discharged into the atmosphere from the exhaust discharge section 32 while being controlled by the control valve 31. The bent part 1 of the head of the door body 3 is fixed to the steel plate 8 on the upper surface of the foundation concrete 7. It is supported by the fixed support material 4 1, and is connected to the contracted elastic flexible tube 1 1 and the tip 4 9 of the whole shape holding plate 2 2. It is housed and protected by the bent part 1 of the section and the steel plate 8 on the upper surface of the foundation concrete 7.

The embodiment shown in FIG. 7 and FIG. 8 shows the basic structure of the present invention, and has a simple structure, and is made of a stretchable flexible unit composed of unit rubber tubes 18 and 19 and an overall shape holding plate 22. The positional relationship between the flexible tube 11 and the door 3, the rotating shaft 6, and the steel plate 8 is also good.

According to FIG. 7, the cross-sectional shape of the elastic flexible tube 11 becomes a half-open fan, the unit rubber tubes 18 and 19 are stacked neatly to support the door 3, and the whole shape holding plate You can understand the situation where 22 works effectively.

FIGS. 10, 11 and 12 show another embodiment of the undulating gate of the present invention. FIG. 10 is a sectional view of the undulating gate and shows an upright state. Fig. 11 is a cross-sectional view of the undulating gate, showing the undulating state. FIG. 12 is a plan view of the whole shape holding plate.

In FIGS. 10 and 11, a steel door 3 having a bent portion 1 and a water splitting member 2 at its head is provided with a rotating shaft 6 having a predetermined diameter at a lower end. On the other hand, the rotating shaft 6 is supported by the steel plate 8 on the upper surface of the foundation concrete 7 and the bearing 10 attached to the anchoring girder 9, and the floating is prevented by the bolt 103 and the holding plate 104. Stable from. Therefore, the door body 3 is stabilized by the rotating shaft 6 located at the bottom of the waterway, and can be freely raised or lowered.

At the back side (anti-hydraulic side) of the door body 3, attach the mounting flange 1 2 at the upper end of the elastic flexible tube 1 1 with the presser foot 13 and the bolt 14, and mount the lower end. Flange 1 5 Is attached to the steel plate 8 on the upper surface of the base concrete 7 with the presser foot 16 and the bolt 17. The elastic flexible tube 11 is formed by holding the assembling flanges 20 and 21 of the unit rubber tubes 18 and 19 with the presser fittings 23 and 24 and the bolts 25 while sandwiching the entire shape holding plate 22 therebetween. The mounting surface of the mounting flange 12 and the back of the door 3, the mounting flange 15 and the steel plate 8, the assembly flanges 20 and 21 and the whole The contact surface of the shape retaining plate 22 is completely airtight. In addition, since the whole shape holding plate 22 is provided with an appropriate number of ventilation holes 26 as shown in FIG. 12, the flow of air through the entire inside of the elastic flexible tube 11 is moderate. Secured.

By the way, as shown in Fig. 10, the cross-sectional shapes of the unit rubber tubes 1 8 and 1 9 are made to increase as they move away from the rotating shaft 6 like closed fans. 1 1 The overall cross-sectional shape is like a half-open fan.

Therefore, the entire stretchable flexible tube 11 is deformed in the direction away from the rotating shaft 6 as it is, and thus a securing guide 27 provided on the rotating shaft 6 with a securing rod 27 attached to the lower end of the whole shape holding plate 22 is provided. It is connected to the guide groove 102 of the plate 101 to prevent this.

As shown in FIG. 10 and FIG. 11, when the door 3 made of steel plate rises or falls down, the elastic flexible tube 11 expands and contracts, so that the whole shape retaining plate 2 2 is also horizontal. It moves while changing the inclination angle with respect to. Therefore, connecting the retaining rod 27 at the lower end of the overall shape retaining plate 22 to the rotating shaft 6 with the retaining guide plate 101 interposed therebetween has the effect of smoothing the movement of the overall shape retaining plate 22. is there. In particular, the effect is remarkable when the number of the whole shape substrates 22 is two or more.

The material of the unit rubber tubes 18 and 19 is flexible, has a predetermined strength, and is impermeable to air.

The door 3, the rotating shaft 6, and the presser foot 13, 16 are made of ordinary steel or stainless steel plate, but the overall shape retaining plate 22 and the presser foot 23, 24 Since it is preferable to use a lighter one, use an aluminum alloy or reinforced plastic.

With this configuration, the air tube connected to the lower end of the elastic flexible tube 11

2 9 is buried in the foundation concrete 7 and led to land, and the exhaust on-off valve 30, the exhaust flow control valve 31, the exhaust discharge section 32, the air supply on-off valve 33, the air supply flow control Connect the valve 34 and the air compressor 35 as shown in Fig. 10 and Fig. 11.

On top of that, from the air compressor 35, the air supply flow control valve 34, the air supply opening / closing valve

33, Fig. 10 is a cross-sectional view of the state in which the door 3 is raised as a result of pressurizing air into the inside of the elastic flexible tube 11 via the air pipe 29, and FIG. The bent part 1 functions so that the overflowing water does not hit the elastic flexible tube 11, and the lower watertight rubber 36 is taken to the door 3 by the holding plate 37 and the bolt 38. At the same time, it is attached to the anchor girder 9 by the holding plate 39 and the bolt 40 to prevent leakage of water.

At the top of the door 3, the anchoring part 4 3 above the anchor cord 4 2 is attached with the holding plate 4 4 and the bolt 4 5, and the lower anchoring part 4 6 is attached to the steel plate 8 with the holding plate 4 7. bolt

As a result of attachment at 48, the tension cord 42 generates tension at a position where it does not contact the unit rubber tubes 18 and 19, and regulates the maximum standing posture of the door body 3. In addition, the retaining cord 42 is connected to the distal end 49 of the whole shape retaining plate 22, and the deformation at the time of falling down is also restricted.

On the other hand, the air compressor 35 is stopped, the on-off valve 33 for air supply is closed, the on-off valve 30 for exhaust is opened, and the air having the pressure inside the elastic flexible tube 11 is discharged to the exhaust flow rate. FIG. 11 is a cross-sectional view showing a state in which the door 3 is completely laid down as a result of being discharged from the exhaust discharge section 32 into the atmosphere while being controlled by the control valve 31. The bent part 1 of the head of the door body 3 is supported by a support member 41 fixed to a steel plate 8 on the upper surface of the base concrete 7, and has a reduced elastic flexible tube 1 1 Since it is connected to the tip 4 9 of the body shape holding plate 2 2, the bent strap 4 2 is stored by the door body 3, the bent part 1 of the head, and the steel plate 8 on the top surface of the base concrete 7. , Protected.

In this embodiment, since the diameter of the rotating shaft 6 is large, the shape of the door body 3 is stable and easy to handle, and after the rotating shaft 6 is placed on the bearing 10 in the installation work, the holding plate 104 is removed. Since it is fixed with bolts 103 to prevent lifting, the structure is suitable for large and heavy undulating gates.

FIGS. 13 and 14, and FIG. 15 show still another embodiment of the undulating gate of the present invention, and FIG. 13 is a sectional view of the undulating gate. FIG. 14 is a cross-sectional view of the undulating gate, showing the undulating state. FIG. 15 is a plan view of the whole shape holding plate.

In Figs. 13 and 14, the steel door 3 with the bent part 1 and the water splitting material 2 on the head is provided at several places (about 2 to 4 places) on the cross beam 4 at the lower end. A rotating shaft 6 supported by a shaft support 5. On the other hand, the rotating shaft 6 is stable because it is supported by the steel plate 8 on the upper surface of the foundation concrete 7 and the bearing 10 attached to the anchoring girder 9. Therefore, the door body 3 is stabilized by the rotating shaft 6 located at the bottom of the water channel, and can be freely raised or lowered.

On the back side (anti-hydraulic side) of this door body 3, attach the mounting flange 12 at the upper end of the elastic flexible tube 1 1 with the holding hardware 13 and bolts 14, and press the mounting flange 15 at the lower end. It is attached to the steel plate 8 on the upper surface of the foundation concrete 7 by hardware 16 and bolts 17.

The elastic flexible tube 11 is assembled into one body by bonding the unit rubber tubes 18 and 19 to the connecting portion 200, and the connecting portion 200 is used as a reinforcing material for the whole shape holding plate 22. The mounting flange 12 and the rear of the door 3 and the contact surface between the mounting flange 15 and the steel plate 8 are completely airtight. It is dense. In addition, since the whole shape holding plate 22 is provided with air holes 202 as shown in FIG. 15, a large air flow inside the elastic flexible tube 11 is ensured.

By the way, as shown in Fig. 13, the cross-sectional shape of the unit rubber tubes 18 and 19 is made like a closed fan so as to increase as the distance from the rotating shaft 6 increases. 1 The cross-sectional shape of the whole is like a half-open fan.

As shown in FIGS. 13 and 14, when the steel plate door 3 rises or falls, the elastic flexible tube 11 expands and contracts, so that the entire shape retaining plate 2 2 is also horizontal. It moves while changing the inclination angle with respect to. Therefore, connecting the retaining rod 27 at the lower end of the overall shape retaining plate 22 to the rotating shaft 6 with the retaining ring 28 interposed has the effect of smoothing the movement of the overall shape retaining plate 22. . In particular, when the number of the whole shape holding plates 22 is two or more, the effect is remarkable.

The door 3 and the presser foot 13, 16 are made of ordinary steel or stainless steel plate, but the overall shape holding plate 22 is preferably light. Therefore, use aluminum alloy or reinforced plastic.

With this configuration, an air pipe 29 connected to the lower end of the elastic flexible pipe 11 1 is buried in the base concrete 7 and guided to the land, and the exhaust on-off valve 30, the exhaust flow rate Control valve 3 1, Exhaust discharge section 3 2, On-off valve for air supply 3 3, Connect the air supply flow control valve 34 and the air compressor 35 as shown in Fig. 13 and Fig. 14.

3 3. A cross-sectional view of the state in which the door body 3 stands up as a result of pressurizing air into the inside of the elastic flexible pipe 11 via the air pipe 29 is shown in FIG. 13, and the head of the door body 3 is shown in FIG. The bent part 1 of the part functions so that the overflowing water does not hit the elastic flexible tube 11, and the lower watertight rubber 36 is attached to the door body 3 by the holding plate 37 and bolts 38. At the same time, it is attached to the anchoring girder 9 by the holding plate 39 and the bolt 40 to prevent water leakage.

On the other hand, the air compressor 35 is stopped, the on-off valve 33 for air supply is closed, the on-off valve 30 for exhaust is opened, and the air having the pressure inside the elastic flexible tube 11 is discharged to the exhaust flow rate. FIG. 14 is a cross-sectional view showing a state in which the door 3 is completely laid down as a result of being discharged into the atmosphere from the exhaust discharge section 32 while being controlled by the control valve 31. The bent part 1 of the head of the door body 3 is supported by a support member 4 1 fixed to a steel plate 8 on the upper surface of the foundation concrete 7, and has a reduced elastic flexible tube 1 1 and an overall shape holding plate 2. Since it is connected to the tip 49 of 2, the bent anchor cord 42 is stored and protected by the door body 3, the bent part 1 of the head, and the steel plate 8 on the upper surface of the base concrete 7.

In this embodiment, the height of the undulating gate was increased and the pressure of the air used was also increased. As a result, it is more expensive and easier to handle the unit rubber tubes 18 and 19 than to separately manufacture and assemble them with a bolt. It was done.

FIGS. 16 to 19 show another embodiment of the undulating gate according to the present invention. FIG. 16 shows a sectional view of the undulating gate in an upright state, and FIG. In the sectional view of FIG. FIG. 18 is a plan view of the whole shape holding plate, and FIG. 19 is a plan view of the mounting plate.

In FIGS. 16 and 17, a steel plate door 3 having a bent portion 1 and a water splitting member 2 on its head is provided at several locations (about 2 to 4 locations) on a cross beam 4 at the lower end. A rotating shaft 6 supported by a shaft support 5. On the other hand, the rotating shaft 6 is stable because it is supported by the steel plate 8 on the upper surface of the foundation concrete 7 and the bearing 10 attached to the anchoring girder 9. Therefore, the door body 3 is stabilized by the rotating shaft 6 located at the bottom of the water channel, and can be freely raised or lowered.

A stiffener 301 in the direction perpendicular to the rotation axis is attached to the front side (hydraulic side) of the door 3 to increase the bending strength of the door 3 in the height direction. Since 0 1 is perpendicular to the rotation axis, it does not hinder the flow of water, earth and sand, boulders, etc.

Also, on the back side (anti-hydraulic side) of the door body 3, the mounting flange 12 at the upper end of the elastic flexible tube 11 is attached with the presser fitting 13 and the bolt 14, and the mounting flange 15 at the lower end is attached. Attach it to the mounting plate 302 with the presser foot 16 and the bolt 17, and attach this mounting plate 302 to the steel plate 8 on the upper surface of the base concrete 7 while maintaining the airtightness with the seal 304 with the bolt 303. The stretchable flexible tube 11 is firmly secured to the assembling flanges 20 and 21 of the unit rubber tubes 18 and 19 by the presser fittings 23 and 24 and the bolts 25 while sandwiching the entire shape holding plate 22 therebetween. The mounting flange 1 2 and the back of the door 3 Surface, mounting flange 15 and mounting plate 302, mounting plate 302 and seal 304, and steel plate 8, contact surfaces of assembly flanges 20 and 21 and overall shape retaining plate 22 are completely airtight. In addition, since the whole shape holding plate 22 and the installation 扳 302 are provided with a ventilation hole 26 which also serves as a working hole as shown in FIG. A large flow of air throughout the interior is ensured.

By the way, as shown in Fig. 16, the cross-sectional shapes of the unit rubber tubes 18 and 19 are made to increase as they move away from the rotating shaft 6 like closed fans. 1 The cross-sectional shape of the whole is like a half-open fan.

As shown in FIGS. 16 and 17, when the door 3 made of steel plate rises or falls down, the elastic flexible tube 11 expands and contracts, so that the whole shape retaining plate 2 2 is also horizontal. It moves while changing the inclination angle with respect to. Therefore, connecting the retaining rod 27 at the lower end of the overall shape retaining plate 22 to the rotating shaft 6 with the retaining ring 28 interposed has the effect of smoothing the movement of the overall shape retaining plate 22. . In particular, when the number of the whole shape holding plates 22 is two or more, the effect is remarkable.

The door 3, the presser foot 13, 16, and the mounting plate 302 are made of ordinary steel or stainless steel plate, but the overall shape retention plate 22 is preferably light. Use

With this configuration, the air tube connected to the lower end of the elastic flexible tube 11 2 9 is buried in the foundation concrete 7 and led to land, and the exhaust on-off valve 30, the exhaust flow control valve 31, the exhaust discharge section 32, the air supply on-off valve 33, the air supply flow control Connect the valve 34 and the air compressor 35 as shown in Fig. 16 and Fig. 17.

33, Fig. 6 is a cross-sectional view of the state in which the door 3 is raised as a result of pressurizing air into the inside of the elastic flexible tube 11 via the air pipe 29, and the head of the door 3 The bent section 1 functions so that the overflowing water does not hit the elastic flexible tube 1 1, and the lower watertight rubber 36 is attached to the door 3 by the holding plate 37 and the bolt 38. At the same time, it is attached to the anchor girder 9 by the holding plate 39 and the bolt 40 to prevent water leakage.

On the other hand, the air compressor 35 is stopped, the on-off valve 33 for air supply is closed, the on-off valve 30 for exhaust is opened, and the air having the pressure inside the elastic flexible tube 11 is discharged to the exhaust flow rate. FIG. 17 is a cross-sectional view showing a state in which the door 3 is completely laid down as a result of being discharged into the atmosphere from the exhaust discharge section 32 while being controlled by the control valve 31. The bent part 1 of the head of the door body 3 is supported by a support member 41 fixed to a steel plate 8 on the upper surface of the base concrete 7, and has a reduced elastic flexible tube 11 and an overall shape. Since it is connected to the front end 49 of the plate 22, the bent strap 4 2 is stored and protected by the door 3, the bent portion 1 of the head, and the steel plate 8 on the upper surface of the foundation concrete 7. In the embodiment shown in FIGS. 16 to 19, especially in the case of a large undulating gate, a stiffener 301 in the direction perpendicular to the rotation axis is provided on the front side (hydraulic side) of the door body 3. In addition, the bending strength in the height direction of the door body 3 is increased. Also, since the tension acting on the rubber cloth of the unit rubber tubes 18 and 19 becomes large, avoid bending the mounting flanges 12 and 15 and the assembly flanges 20 and 21 and presser feet 1 and 3. 16, 23, and 24 were provided inside the elastic flexible tube 11. As a result, the shape of the unit rubber tubes 18 and 19 became simple and reasonable, but working holes for assembling were required, and the ventilation holes 2 for the whole shape holding plate 22 and the mounting plate 302 were required. 6 was given enough size to double as a working hole. Also, in order to install the elastic flexible tube 11, the number of components such as the mounting plate 302, the bolt 303, the seal 3Q4, etc. increases, but it is unavoidable. Industrial applicability

According to the first undulating gate of the present invention, it has the same strength and durability as a steel plate door against falling earth and sand, boulders, driftwood, drifting ice, etc., has a simple structure, and is manufactured, transported, and installed. In addition, it has become possible to provide new undulating gates that are inexpensive in general, easy to inspect, maintain and repair, and that do not have to worry about polluting the environment. That is,

(1) Use of protective cloth to hold air bag

Place the air bag in the space surrounded by the three members, the protective cloth stretched by attaching the ends at the same distance from the back of the door body, the upper surface of the base concrete, and the rotation axis of both. As a result of adopting a structure in which the air bag that is about to move away from the rotating shaft by the air pressure is pressed by the protective cloth, the following effects were obtained.

(a) The air bag should move far from the axis of rotation due to the internal air pressure. As a result, the air bladder comes in close contact with the back of the protective cloth, the back of the door, and the top of the foundation concrete, close to the protective cloth mounting part.

Therefore, the primary moment around the rotation axis of the area where the air bag comes into contact with the back of the door and transmits the internal air pressure increases, and it is necessary to raise and support the steel plate door. This is advantageous because the air pressure can be reduced. In other words, the area where the air bag comes in contact with the back of the door and transmits the internal air pressure is distributed over a wide area of about 80% of the width of the door and about 20% of the height. The air pressure is very small.

For example, since the pressure of the water depth 2 m is 0. ² kgf Zcm 2, air pressure required to operate the relief gate of depth 2 m is according to the study of the general, 0.. 4 kgf Zc m ² approximately It is enough. Therefore, the required horsepower of the air compressor is small, and the piping and control equipment are inexpensive.

(b) For the reason explained in (a) above, a door made of steel plate can be made. In other words, the steel door, which receives the impact of water pressure and falling objects as a load, and the weight of the door itself, is supported by the air bag that comes in contact with a large area, so that the concentration of stress is small and the cross beam Since it does not require much reinforcement by girder and stringers, it is possible to use an inexpensive steel plate door that is light in weight and requires little processing.

(c) The appearance of the protective cloth on the back of the up-and-down undulating gate is almost a cylindrical surface around the rotation axis of the door body, and is beautiful.

(2) Effect of steel sheet door protecting air bag

Steel doors are directly affected by the pressure of the water stored by the undulating gates, and are also directly impacted by falling sand, boulders, driftwood, and drifting ice, and have sufficient rigidity, strength, and wear resistance. This has the effect of protecting the air bag, not only improving the safety and reliability of the undulating gate, but also advantageously using an inexpensive air bag because no extra reinforcement is required for the air bag.

(3) Effect of arranging small undulating gates side by side In the undulating gate according to the present invention, the components of the undulating gate are divided into two parts: a steel plate door that is directly subjected to the impact of hydraulic pressure and a falling object, and an operating device formed by an air bag surrounded by a protective cloth. Since each of them has a free structure that can be extended or shortened in the width direction of the gate, an undulating gate with a small gate width (about 2-3 m) is manufactured as a unit undulating gate, and Because it is easy to line up, it has become easier to construct undulating gates in large waterways (eg, 10 to 20 Om).

As a result, the following effects can be obtained.

(a) Standardization of undulating gates is now possible. In other words, by designing several combinations of protective cloth and air bag of various heights in response to changes in gate height, it is necessary to determine the appropriate range of the height of the steel plate door for each of these combinations. However, depending on the width and height of the installation site, the work of design calculation performed each time can be omitted, and the period is shortened and the cost is reduced.

(b) When standardized, the combination of protective cloth and air bag, as well as the door and bearing made of steel plate, have the same specifications and the same dimensions. As a result, production costs are greatly reduced.

(c) When undulating gates with a small gate width are installed side by side, it is very easy to manufacture, transport, and install, and the cost is lower than when all parts are made and installed together. Help me. In addition, it can be carried in mountainous areas without wide roads, and can be transported and installed by helicopter, greatly expanding the possibilities of application.

(d) Since the components that make up the undulating gate have been standardized, it has become possible to reduce the size and weight of the gate. t, construction of the period is now possible.

(4) The air used for operation can be used freely and free of charge, which is not only effective in reducing costs but also pollutes the environment if leaked or released. No need to worry about dyeing.

Next, according to the second undulating gate of the present invention, it has the same strength and durability as a steel plate door against flowing earth and sand, boulders, driftwood, drifting ice, etc., has a simple structure, and is manufactured and transported. In addition, it has become possible to provide a new undulating gate that is inexpensive for installation as a whole, easy to inspect, maintain and repair, and has no fear of polluting the environment.

That is,

(1) Adoption of an elastic flexible tube having a whole shape retention plate

A flat unit rubber tube with several fans closed is stacked, and in addition, the gate of the elastic flexible tube is rolled up and down by the whole shape holding plate sandwiched between the unit rubber tubes. As a result of adopting the structure of retaining in the axial direction, the following effects were obtained.

(a) Since the unit rubber tube is flat and small, the reinforced rubber cloth constituting the unit rubber tube may have low strength and is inexpensive.

(b) A unit consisting of a rubber cloth with an arc length in contact with the three members, with the whole shape holding plate placed at a position that equally divides the angle between the back of the standing door body and the top of the foundation concrete. By stacking rubber tubes and assembling them with presser foot and bolts, the unit rubber tubes become flat.

This means that the area where compressed air pushes on the back of the door to support the standing door can be designed to be large, so the air pressure required to raise and support the steel plate door Can be advantageously reduced. For example, since the pressure at a depth of 2 m is 0.2 kgfcm ² , the air pressure required to operate the undulating gate at a depth of 2 m is approximately 0.4 kgf / cm ² according to a general study. Is sufficient, technically easy, and economically very advantageous.

(c) For the same reason as in (b) above, a steel door can be used. You. In other words, the steel door that receives the impact of water pressure and falling objects as a load, and the weight of the door itself is supported by compressed air that touches over a large area, so that stress concentration is low, and horizontal and vertical beams are used. Since the reinforcement can be reduced, a lightweight and extremely inexpensive steel door can be used.

(d) The effect of the appropriately sized ventilation holes (vents) provided on the overall shape holding plate when stacking unit rubber tubes is that the expansion and contraction speed of the entire elastic flexible tube can be controlled. In particular, in the present invention, since the pressure of air is low, even if one unit rubber tube ruptures, the contraction speed of the other unit rubber tubes is limited. Since the shrinkage is moderate, it is possible to avoid a rapid determination of the undulating gate.

(e) The overall shape of the stretchable flexible tube viewed from the back side of the door when supporting an upright door is generally cylindrical with the center of rotation of the door as the center, though there are some irregularities. Beautiful from.

(2) The effect of the steel door to protect the flexible tube

The door made of steel plate is directly affected by the pressure of the water stored by the undulating gate, and is also directly impacted by flowing earth and sand, boulders, driftwood, and drifting ice, and has sufficient rigidity, strength, wear resistance, etc. It has the effect of protecting the stretchable flexible tube, not only improving the safety and reliability of the undulating gate, but also reducing the cost of the stretchable flexible tube because it does not require extra reinforcement. Available and advantageous. (3) Effect of arranging small undulating gates side by side

In the undulating gate of the present invention, the components of the undulating gate are directly connected to an operating device using a flexible steel tube having a door body made of a steel plate which is directly subjected to a hydraulic pressure or an impact of a falling object and an elastic tube having an overall shape holding plate. The gates are extended and shortened in the width direction of the gate. Because of the free structure, undulating gates with a small gate width (about 2-3 m) are manufactured as unit undulating gates. It is possible to construct an undulating gate in a wide (e.g., 10 to 20 Om) waterway It became easier.

As a result, the following effects can be obtained.

(a) Standardization of undulating gate is now possible. In other words, by designing several types of stretchable flexible tubes corresponding to changes in the gate height and determining the appropriate range of the height of the steel plate door for each of these, Depending on the width and height of the installation site, the work of design calculation performed each time can be omitted, and the period is shortened and the cost is reduced.

(b) When standardized, elastic flexible tubes, steel doors and bearings, etc., have the same specifications and the same dimensions, are produced in large quantities at factories, and used as needed. Production costs are greatly reduced.

(c) When undulating gates with small gate width are installed side by side, it is very easy to manufacture, transport and install, and the cost is lower than when all parts are made and installed together. Help me. In addition, it can be carried in mountainous areas without wide roads, and can be transported and installed by helicopter, greatly expanding the possibilities of application.

(d) The components that make up the undulating gate have been standardized, and their size and weight have been reduced. Short-term construction is now possible.

(4) The air used for operation can be used freely and free of charge, so it is not only effective in reducing costs, but also does not have to worry about polluting the environment if leaked or released.

Claims

The scope of the claims

1. A single steel plate that has a rotating shaft at the bottom of the water channel and can be raised or lowered freely is used as the door of the undulating gate,

On the back side (anti-hydraulic side) of this door body, the upper end of the V-shaped airtight sheet and the upper end of the upper airtight sheet are bent up, overlapped, and bonded to one end of a V-shaped air bladder. The V-shaped air bag and the lower end of the protective cloth together with the upper end of the protective cloth, and the upper end of the protective cloth. An air pipe for press-fitting and discharging the air inside is connected via a foundation concrete to make an operating device for the up / down gate.

The protective cloth and the air bladder are bonded to the parts that are in constant contact with each other to stabilize the mutual positional relationship, and at the same time, their dimensions in the width direction are made as large as possible so that they can be supported over almost the entire width of the door. On the other hand, their dimensions in the height direction should be large enough not to impede the flow of water flowing over the top of the undulating gate.

An air compressor is connected to the air pipe connected to the air bag configured as described above via an on-off valve and a flow control valve, and air is pressed into the air bag by the air compressor, thereby opening and closing the door of the up / down gate. Raise the body, open the exhaust on-off valve connected to the air bag via the air pipe, and release air with the pressure inside the air bag to the atmosphere via the exhaust flow control valve. An undulating gate characterized by having the door of the undulating gate fall down.

2. In the undulating gate set forth in claim 1, at the position where the dimension of the protective cloth in the height direction is substantially equally divided, the other end of the divided cloth attached to the back surface of the protective cloth is positioned close to the rotation axis. By fixing to the provided split cloth fixing material, the space surrounded by the door body, the protective cloth, and the base concrete is divided, At the same time that air bags are placed in each of the divided spaces, air flows between the air bags are ensured by ventilation pipes, and air is injected into these air bags and the air inside is discharged. An undulating gate characterized by connecting pipes via a base concrete.

3. In the undulating gate of claims 1 or 2, the door

An undulating gate characterized by attaching a stiffener perpendicular to the rotation axis to the hydraulic side of the steel sheet in order to increase the bending strength in the height direction of the door of the undulating gate of one steel sheet. .

4. In the undulating gate according to any one of Claims 1 to 3, the protective cloth and air bag are protected from water flowing over the door body, earth and sand, boulders, driftwood, drift ice, etc. flowing down with the water. In addition, the door has a bend that has a generatrix parallel to the axis of rotation on the head so as to form a storage space for bent protective cloth and a reduced air bag when the door falls down. Up and down gate.

5. In the undulating gate according to any one of claims 1 to 4, the lower end of the steel plate used as the door body has a thick round bar (diameter of 1Z10 ^ 1 of the gate height).

(Approximately Z20) to the entire gate width to form a rotating shaft. This rotating shaft is housed in a bearing with a semi-circular recess provided at several locations at the upper end of the basic concrete. An undulating gate characterized by holding the rotating shaft from above.

6. The undulating gate according to any one of claims 1 to 5, characterized in that water or hydraulic oil is used instead of air as the pressure medium.

7. In the undulating gate according to any of claims 1 to 6, the gate width is small (about 2 to 3 m). By arranging the undulating gates side by side, An undulating gate characterized by being applied to large (approximately 100 m to 200 m) waterways.

8. In the undulating gate according to any one of claims 1 to 7, the protective cloth and the air bladder are integrally manufactured by using a part of the protective cloth and the air bladder which is in constant contact as one component. Undulating gate characterized by:

9. A single steel plate that has a rotating shaft at the bottom of the water channel and can be freely raised or lowered is used as the door of the undulating gate,

The upper end of the elastic flexible tube is attached to the back side (anti-hydraulic side) of this door, and the lower end is fixed to the upper surface of the base concrete, and then air is injected into the elastic flexible tube. And an air pipe that discharges the air inside is connected via a foundation concrete to form an operating device for the undulating gate.

The width of the undulating gate of the elastic flexible tube is made as large as possible so that it can be supported over almost the entire width of the door body. Is large enough so as not to impede the flow of water over the top of the undulating gate,

In addition, this stretchable flexible tube requires only a rubberized cloth that is flexible and has sufficient tensile strength so that the dimension in the height direction increases like a closed fan away from the axis of rotation of the undulating gate. After assembling into a short tube with a round or rectangular cross section with a bending allowance, the unit rubber tube provided with mounting flanges at both ends is connected with a presser foot and bolts while sandwiching the whole shape holding plate between them. The whole shape holding plate has ventilation holes, so that the air flow inside the elastic flexible tube is properly secured.

On the other hand, the whole shape retaining plate is attached to a stay fitting provided near the rotation axis so as to be able to rotate in accordance with expansion and contraction of the entire extensible flexible tube and to slightly move the end point. The intermediate portion of the elastic flexible tube is prevented from being largely deformed in a direction away from the rotation axis during the operation of raising and lowering the undulating gate, An air compressor is connected to the air pipe connected to the elastic flexible pipe configured as described above via an on-off valve and a flow rate regulating valve, and air is injected into the elastic flexible pipe by the air compressor. This raises the door of the up-and-down gate, and opens the exhaust on-off valve connected to the air pipe connected to the elastic flexible pipe via the exhaust flow control valve. An undulating gate, characterized in that air having an internal pressure is released into the atmosphere so that the door of the undulating gate falls down.

10. In the undulating gate set forth in claim 1, in order to increase the bending strength in the height direction of the door body of the one steel undulating gate serving as the door body, the rotation axis is perpendicular to the rotation axis. The stiffener is attached to the hydraulic side of the steel plate.

1 1. In the undulating gate according to claim 1 or 2, the elastic flexible tube is protected from water flowing over the door body, earth and sand, boulders, driftwood, drifting ice, etc., flowing down with the water. An up-and-down gate characterized by performing a bending process having a generatrix parallel to the rotation axis on the head of the door so as to form a storage space for the elastic flexible tube reduced when the door falls down. G.

12. In the undulating gate according to any one of claims 1 to 3, a thick round bar (the diameter is 1/1/10 of the gate height) (Approximately 0) is attached to the entire gate width to form a rotating shaft. This rotating shaft is housed in a bearing with a semi-circular recess provided at several locations at the upper end of the base concrete, and furthermore, the rotating shaft is prevented by a floating prevention plate. An up-and-down gate characterized by pressing down from above. .

13. An undulating gate according to any one of claims 1 to 4, characterized in that water or hydraulic oil is used instead of air as the pressure medium.

14. In the undulating gate according to any one of claims 1 to 5, By arranging undulating gates with a small gate width (about 2 to 3 m) side by side, it is applied to a large (about 10π! To 200 m) waterway. Gate.

15. In the undulating gate according to any one of claims 1 to 6, the highest standing posture of the undulating gate anchored to the upper surface of the base concrete at several upper portions of the steel door. By attaching a tie cord that limits the deformation of the tie string when the up-and-down gate falls down, the tie cord is connected to the unit rubber tube of the elastic flexible tube or the whole shape holding plate. An undulating gate characterized by being stored in a storage space at the head of a steel plate door.

16. In the undulating gate according to any one of Claims 1 to 7, the other end of the weather-resistant, equal-strength protective cloth attached to the entire width of the gate on the upper part of the steel door is connected to the base concrete. A function to limit the maximum standing posture of the undulating gate by anchoring to the upper surface of the ridge, and stretch from water vein overflowing from the upper end of the steel plate door, driftwood falling along with water, drift ice, etc. The function to protect the flexible tube and the scenic view function to simplify the appearance of the back of the undulating gate,

In addition, by appropriately connecting this protective cloth to the unit rubber tube of the elastic flexible tube and the overall shape holding plate, deformation of the protective cloth when the up-and-down gate falls down is limited, and the steel cloth door is used for storage. An undulating gate characterized by being stored in a space.