JPS59134213A - Automatic rising and falling device for rubber falling dam - Google Patents

Abstract

PURPOSE:To miniaturize an automatic rising and falling device, make the action of the device exact, and simplify the installation work of the device by a method in which a water stopper is opened by utilizing the weight of water beyond a falling water level, and water stored in an upper chamber is discharged to expose the lower end opening of an exhaust pipe. CONSTITUTION:When the water level of a dam rises up to a falling water level L, water drops from the water inlet 38 of a lower chamber 3 onto a working plate 5 and stays there, the working plate 5 is lowered by the weight of water, and a lever 7 is turned to remove a water stopper 10. The water in the upper chamber 2 flows out through the drain port 11 of a partition plate 4 and the lower chamber 3 to the drain port 39. When the stored water in the upper chamber 2 is discharged, the lower end opening 36 of the exhaust pipe 35 is exposed, the internal pressure of the rubber bag of the dam is discharged through the exhaust pipe 35 from an air vent tube 30 into the open air, and the rubber dam automatically falls down.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a toppling device that automatically topples a rubber undulating weir located in a river when the water level exceeds a predetermined water level.

At intake weirs installed on rivers, the gates are erected to take in the necessary amount of water when water is needed, and when the overflow depth at the intake weir exceeds a certain value, such as during a flood.
0 Rubber relief weirs, which are designed to form a weir by filling air inside a rubber bag, allow floodwaters to flow safely by lowering or removing the gate. Conventionally, when the overflow water depth exceeds a certain value, the following method has been used to remove the air inside the rubber bag of this rubber undulating weir. That is,
In this method, a float is floated on the water surface of a separate excavation and used as an actuator to actuate the collapse water level sensor and exhaust valve. That is, when the water level reaches the lodging limit, the buoyancy of the float that rises according to the water level pushes up the exhaust knob of the air pipe and opens it, releasing the air inside the rubber bag.

In conventional equipment with such a configuration, in order to obtain the force necessary to operate the exhaust valve from the buoyancy of the float, a large float is inevitably required, and therefore a large trench is built in the land far from the weir.・It was necessary to direct river water there from the weir and install a large float and exhaust pulp. Additionally, there was the technically difficult problem of having to appropriately open and close the exhaust valve in response to the movement of the float, which moves up and down depending on the water level.

The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide an automatic lodging device for a rubber undulating weir that is compact, has reliable functions, and simplifies equipment construction.

The present invention provides a water storage chamber equipped with drainage means, conducts the internal pressure of the rubber undulating weir into the upper space of the water storage chamber, and separately provides an exhaust pipe with an open end submerged in water, and furthermore, the water storage chamber is provided with a water storage chamber equipped with a drainage means, and the internal pressure of the rubber undulating weir is conducted to the upper space of the water storage chamber. This automatic toppling device for a rubber undulating weir is characterized in that an actuating means is provided which is actuated by the weight of river water, and the actuating means actuates the drainage means of the water storage chamber.

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

In Figures 1 to 3, 1 is a cylindrical device body; 2
3 is the lower chamber of the apparatus main body 1, 4 is a partition plate that separates the upper chamber 2 and the lower chamber 3, 5 is an operating plate that moves up and down in the lower chamber 3, 6 is a bar for suspending the actuating plate 5, and 7 is a lever. The bar 6 is connected to a bar 16 extending outside the room through a long hole 15 formed in the upper wall of the lower chamber 3. The hanging tool 17 is engaged with one end of the lever 7 guided to the outside of the upper chamber 2. Lever 7
is pivotally supported by a shaft 8, and is provided with a balance weight 9. Reference numeral 10 denotes a water stop valve, which is fitted into the drain port 11 provided through the partition plate 4, and is connected to the drain port 1.
Block 1. This stopcock 10 is connected to one end of the lever 7 and the chain 1
@13 connected by 2 is a stopper that comes into contact with the end of the lever 7 and prevents the lever 7 from rotating at a predetermined position.

The float valve installed in the upper chamber 2 is connected to the float 2.
1, the water supply from the water inlet n is automatically stopped. Water inlet η connects to water supply source δ via valve n and pump
It is connected to the.

(9) is a ventilation pipe that opens to the ceiling of upper chamber 2, and the conductivity percentage
930 is connected to a vent 1g33 that supplies air from the compressor 31 to the rubber bag of the rubber undulating weir 32.

This is an exhaust pipe that is installed through the ceiling of the upper chamber 2, and its lower end opening is designed so that even if a specified internal pressure reaches the upper space of the upper chamber 2, it will not be stored in the upper chamber 2. The top end is open to the atmosphere.

039 is a drain port located below the lower chamber 3, and 039 is a drain port located below the lower chamber 3. When the plate 5 reaches its lower limit, water flowing out from the lower bulge 37 of the lower chamber 3 is discharged.

In addition, 40 and 41 are valves, 45 is a river bank, and 46 is a trench 4 provided on the river bank 45 for installing the device main body 1.
7 is a water-permeable guard plate that covers the trench 46.

This device is used as follows. First, when the pulp is opened, the float pulp addition is activated at a predetermined water level l to supply water into the upper chamber 2 of the main body 1, and after the water supply is automatically stopped,
Next, the compressor 31 is started, and air is supplied into the com water intake weir 32 to raise the internal pressure to a specified value, and the com water intake weir 32 is raised to a specified value. At the same time, the same air pressure is applied to the ventilation pipe (9)
Through this process, the water level in the upper chamber 2 of the main body 1 of the apparatus is acted upon, and the water level inside the exhaust pipe rises as shown in the figure. This completes the setting of this device.The actuating plate 5 is lifted by the balance weight 9 of the lever 7 and is at position M shown in Fig. 47 and enters the digging 46, the water falls from the water inlet opening into the lower chamber 3 of the device main body 1 and accumulates on the actuating plate 5 in the lower chamber 3, and the actuating plate 5 absorbs the weight of the water. descends by Therefore, the lever 7 is rotated in the direction of the arrow to release the water stop valve 10 connected to the other end of the lever 7. Therefore, the water in the upper chamber 2 is drained from the drain port 11 of the partition plate 4 to the lower chamber 3.
It flows out from here to the drain port 39.

By discharging the water stored in the upper chamber 2, the exhaust pipe 35
The lower end opening 36 is exposed, and therefore the lower end opening 36 is in communication with the ventilation pipes opening into the upper chamber 2 of the apparatus main body 1. Therefore, the internal pressure of the rubber bag of the rubber water intake weir 32 is discharged from the ventilation pipe side through the exhaust pipe into the air, and the rubber water intake weir 32 automatically collapses.

Note that the present invention is not limited to the above-mentioned embodiments, and various embodiments can be adopted. For example, the specific structure of the drainage means including the balance weight 9 and the lever 7, the specific structure of the operating means including the farming plate 5 and the lever 16, etc. may be appropriately changed.

As described above, the device of the present invention utilizes the weight of water that has exceeded the overflow water level to open the stop valve, drain the accumulated water, and open the exhaust pipe. It is configured to communicate with the pipe, and the air inside the rubber relief weir is discharged to cause the weir to collapse, so there is no need for large excavations or large actuators such as floats as in the past. The device can be made smaller and equipment construction that involves civil engineering work can be simplified. Also, since this device is designed to seal the air pressure inside the rubber undulation weir with water, if the air pressure becomes excessive due to some abnormality, the air pressure will Since water is blown out from the exhaust pipe, the air pressure does not exceed the water head of the exhaust pipe in the end, which prevents damage or malfunction of the rubber undulating weir due to an abnormal increase in air pressure.・

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the system of the device according to the present invention, Fig. 2 is an explanatory cross-sectional diagram of the main part, and Fig. 3 is an explanatory diagram showing the state of installation in a river. Main body, 2... Upper chamber, 3... Lower chamber, 5...
Operating plate, 10... Water stop valve, (9).
...Vent pipe, addition...Float valve＼
32...com undulation weir, ah...exhaust pipe,
Ah...Water entrance, 45...River 0

Claims (1)

[Claims] A water storage chamber equipped with drainage means is provided, and the internal pressure of the rubber relief weir is conducted to the upper space of the water storage chamber, and a separate exhaust pipe is provided with the open end submerged in water. An automatic lodging device for a rubber undulating weir, characterized in that an actuating means operated by the weight of water is provided, and the actuating means operates the drainage means of the water storage chamber.