JP2001271333A - Gate spoiler installing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To positively obtain the vibration preventive effect of a door body by a spoiler irrespective of the erect angle of the door body of a rising/lowering gate. SOLUTION: The spoiler 2 functions to prevent vibration of the door body 1 caused by overflow water microseism by dividing overflow water flowing over the door body 1 of the rising/lowering gate, and introducing air between a water screen of the overflow water and a door body back face 12. According to an installation structure of the spoiler 2 on the door body 1, a turbulent flow member 5 for turbulizing overflow water by means of pits and projections at a front end thereof is arranged at an overflow portion of the door body 1 so as to rotatably extend via a hinge 6 in a downstream direction, and the spoiler 2 is fixed onto an upper surface of the turbulent flow member 5. Then, a leg portion 1 of the turbulent flow member 5 and a bearing 8 arranged on a downstream water bed of the door body 1 are connected together via a rod 11 coupled thereto by means of pins 9, 10, respectively. As a result, an erect position of the spoiler 2 is maintained, to thereby sufficiently divide overflow water by the spoiler 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an ups and downs gate provided in a river or a waterway for maintaining a water level or the like, by dividing overflow water of a door body, and blowing air between a water film of the overflow water and a back surface of the door body. The present invention relates to a spoiler-attached structure to a door body for preventing the vibration of the door body caused by the water vein vibration of the overflow water.

[0002]

2. Description of the Related Art Conventionally, a spoiler 2 is provided on an overflow top 1a of a door body 1 as an undulating gate as shown in FIGS.
At the required pitch in the width direction, spoiler 2
Some turbulent spoilers 3 are provided at shorter pitches. In this example, a torque shaft type door 1 is illustrated, and a mountain type spoiler 2 is illustrated.

The spoiler 2 divides the overflow water of the door 1 and introduces air between a water film of the overflow water and the rear surface of the door, thereby preventing the vibration of the door due to the vibration of the water vein of the overflow water. Things. Further, the turbulent spoiler 3 prevents a phenomenon in which, when the overflow water has a shallow depth, the water film of the overflow water has a curtain shape and fluctuates, and a low-frequency air vibration is generated due to a water vein vibration caused by the negative pressure. The turbulence of the overflow water flows.

Further, as shown in FIGS. 11 and 12, a turbulent flow plate 4 having an uneven tip is extended from the overflow top 1a of the door 1 provided with the spoiler 2 to the downstream side. In some cases, the same effect as the turbulent spoiler 3 is obtained by the plate 4. In this example, the door 1 has a horizontal main girder shape, and the spoiler 2 has a triangular pyramid shape.

[0005]

However, in the above-mentioned undulating gate, when the upright angle θ of the door 1 becomes small at the time of discharge at the intermediate opening, the spoiler 2, the turbulent spoiler 3, and the turbulent plate 4 Is tilted together with the door body 1, so that the overflow water is not sufficiently divided, so that sufficient air cannot be introduced between the overflow water film and the rear surface of the door body, and the occurrence of vibration of the door body may not be prevented. .

SUMMARY OF THE INVENTION It is an object of the present invention to provide a spoiler mounting structure capable of reliably preventing the vibration of the door body regardless of the standing angle of the door body.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention separates overflowing water from a door body of an undulating gate,
In the mounting structure of the spoiler to the door body, which introduces air between the overflow water film and the back surface of the door body to prevent the vibration of the door body caused by the water vein vibration of the overflow water, the spoiler is attached to the overflow part of the door body. A turbulence member for turbulently overflowing the water due to the unevenness of the tip is rotatably extended downstream via a hinge, and a spoiler is fixed on the upper surface of the turbulence member, The leg and the bearing provided on the water floor on the downstream side of the door body are connected to each other via rods that are rotatably joined with pins so that the door body can be raised and lowered while maintaining the upright state of the spoiler. It was.

With this configuration, even at an intermediate opening where the rising angle of the door body is small, the overflow water is sufficiently divided by the spoiler that maintains the standing state and the turbulent flow plate that extends downstream, so that the overflow water Sufficient air is introduced between the water film and the rear surface of the door, and the occurrence of vibration of the door is reliably prevented.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, the same reference numerals are given to the same components as those shown in the above-described conventional example,
The description of the function and the like is omitted.

FIGS. 1 and 2 show a first embodiment of the present invention. In this example, the overflow top 1a of the torque shaft type door 1
An angle-shaped turbulence member 5 is rotatably attached to the downstream side of the door body 12 via a hinge 6 slightly below the door body 12, and the mountain-shaped spoiler 2 is fixed to the upper surface of the turbulence member 5. I have. This turbulence member 5 turbulates the overflow water by the unevenness of the tip similarly to the turbulence plate 4 shown in FIGS. 11 and 12, and the lower part of the hinge 6 is the leg 7.

The leg 7 of the turbulence member 5 and the bearing 8 provided on the water floor on the downstream side of the door 1 are connected to each other via a rod 11 rotatably connected by pins 9 and 10, respectively. With this link mechanism, the door 1 rises and falls while maintaining the spoiler 2 in the upright state.

According to the above configuration, in the up / down gate for adjusting the amount of overflowing water by changing the rising angle of the door body 1, the spoiler which maintains the standing state even at the intermediate opening where the rising angle θ of the door body 1 becomes small. 2, the overflow water is sufficiently divided, so that sufficient air is introduced between the water film of the overflow water and the door body rear surface 12, and the generation of vibration of the door body 1 is reliably prevented.

Further, since the spoiler 2 is located slightly below the overflow top 1a of the door body 1 and downstream thereof,
Since the overflow is not hindered by the spoiler 2 and the turbulence member 5 is provided, the turbulence spoiler 3 as shown in FIGS. There is no reduction and no trash.

In addition, since a power source is not particularly required to maintain the upright state of the spoiler 2, the spoiler 2 can be manufactured at low cost and does not require any maintenance.

Next, a second embodiment of the present invention is shown in FIGS. In this example, a triangular pyramid-shaped spoiler 2 is attached to a horizontal main girder type door body 1 with an attachment structure similar to that of the first embodiment, and the effect is the same.

When the door 1 has a fish belly shape, as in the third and fourth embodiments shown in FIGS. 5 and 6, respectively, it can be handled by bending the rod 11.

The above-mentioned mounting structure can be applied to an up-and-down gate mounted on a two-stage roller gate, a dam flap gate, and the like.

Further, as in the fifth and sixth embodiments shown in FIGS. 7 and 8, respectively, in an undulating gate having a long span, the turbulent flow member 5 is divided into a plurality of sections in the span direction so that the door can be opened. The influence of the deflection of the body 1 on the hinge 6 can be reduced.

[0019]

As described above, according to the present invention, the spoiler is provided on the turbulent flow member extending from the overflow section of the door body to the downstream side, and the door body is raised and lowered while maintaining the upright state of the spoiler. Therefore, even at the intermediate opening where the standing angle of the door body is small, overflow water is sufficiently divided by the spoiler, and the vibration of the door body and the generation of low-frequency air vibration are reliably prevented.

Further, since the spoiler is located on the downstream side of the top of the overflow of the door, the overflow is not hindered by the spoiler, the turbulent spoiler becomes unnecessary, and the overflow rate is reduced by the turbulent spoiler. And no trash is caught.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an operation state of a first embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the above.

FIG. 3 is a schematic side view showing an operation state of a second embodiment of the present invention.

FIG. 4 is a perspective view of a main part of the above.

FIG. 5 is a schematic side view showing a third embodiment of the present invention.

FIG. 6 is a schematic side view showing a fourth embodiment of the present invention.

FIG. 7 is a schematic side view showing a fifth embodiment of the present invention.

FIG. 8 is a schematic side view showing a sixth embodiment of the present invention.

FIG. 9 is a perspective view showing a conventional example of attaching a spoiler to an up / down gate.

FIG. 10 is a schematic side view of the above.

FIG. 11 is a perspective view showing another spoiler mounting example of the above.

FIG. 12 is a schematic side view of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door body 1a Overflow top 2 Spoiler 3 Turbulence spoiler 4 Turbulence plate 5 Turbulence member 6 Hinge 7 Leg 8 Bearing 9, 10 Pin 11 Rod 12 Door back

Claims (1)

[Claims] 1. A spoiler for dividing overflow water of a door body of an up-and-down gate and introducing air between a water film of the overflow water and a rear surface of the door body to prevent vibration of the door body due to vibration of a water vein of the overflow water. In the mounting structure to the door body, in the overflow portion of the door body, a turbulence member that makes the overflow water turbulent due to the unevenness of the tip is rotatably extended toward the downstream side via a hinge, A spoiler is fixed to the upper surface of the turbulence member, and the leg of the turbulence member and a bearing provided on the water floor on the downstream side of the door body are respectively connected via rods rotatably joined with pins. A spoiler mounting structure for a gate, wherein the spoiler is connected so that the door body is raised and lowered while maintaining the upright state of the spoiler.