JPS6198810A - Falling device for bagform weir - Google Patents

Abstract

PURPOSE:To prevent refuse from entering into a drain pipe and to facilitate removal of refuse in a side channel, by a method wherein the drain pipe is connected to a bagform weir, the side channel is installed individually from the drain pipe, and when a float chamber is fully filled with water in the side channel, water is drained through the drain pipe. CONSTITUTION:A drain pipe 4, open in a river on the downstream side of a bagform weir, is connected to the bagform weir, a side channel 10 is installed separately from the drain pipe 4. A float chamber 9 is located on the downstream of the side channel 10, and a float 8 contained in the float chamber 9 is connected to a valve body 5 through a link mechanism 7. When the water level of an upper stream river is increased to a given height, the float chamber 9 is full of water in the side channel 10, the float 8 is raised, the valve 5 is opened, and water in the weir is drained through the drain pipe 4. After the weir is falls down, water in the side channel 10 is prevented from flowing to the float chamber 9, water in the float chamber 9 flows through an outlet 9b, the float 8 is lowered, the valve 5 is closed, and the weir is fully filled with water to cause the weir to stand upright.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is a weir constructed for the purpose of taking water from a river, etc., that is, a bag for purchasing water from a river, in which air or water is injected into the river. Stand up.

This invention relates to a bag-like weir lodging device that discharges and lodges the weir.

(Prior art) Conventionally, as shown in Fig. 3, a lodging device (a) is placed inside a so-called embankment (pit) (b), and floodwater is introduced from the upstream river into the weir body by water level detection (12c). , the overflow water from above a predetermined frest is received by a container d, and its weight is transferred to a pulley e.
Then, the lodging valve gK is transmitted through the lobe f, and the lodging valve gK is opened to cause the lodging. j is a pump. However, in the conventional system, a ready-made valve g is installed between the water passage yh and the drain pipe i, so if dust gets into the pipe, it will not close, and this will be removed. In order to do this, it is necessary to disassemble it, and when it is time to stand it up again, drain the water that has accumulated in bit B, and then go down into pit B and empty it! Thirdly, the length of the piping is long, making it necessary to cut an embankment and perform large-scale renovations, which increases costs.

(Problems to be Solved by the Invention) All of the problems of the prior art are due to the fact that the valve body and the device that opens and closes it are housed in a pit, away from the river. .

Therefore, the present invention solves the above-mentioned problem by providing a valve body and a means for opening and closing the same in a river bank, and furthermore, the means for opening and closing the valve is automatically operated according to the water level. This is an attempt to solve the problem.

(Ninth Means for Solving the Problem) In order to achieve the above object, the present invention provides that when a pump for water injection is connected to the bag-shaped weir body that drains the river, dust flows into the downstream river of the weir body. A valve body is disposed at the opening of the drain pipe so that it can be opened and closed, and the float housed in the float chamber is connected to the valve body via a link mechanism, and the drain pipe is connected to the drain pipe. is provided with a notched weir that opens at a predetermined water level, and is provided with an outflow hole near the bottom of the notched weir, and is constructed so that the flow from the notched weir causes the float to float and open the valve body. (Example) An example of the present invention will be described with reference to FIGS. 1 and 2.

Weir body 1 was installed across the river. It is a bag-like object made of flexible material.

The weir body IK is connected to a submersible pump 2 through a water pipe 3, and the weir body IIi is erected by water injection. By opening the valve body 5 that is in contact with the opening at the other end of the drain pipe 4 that opens into the weir body 1, the weir body is collapsed.

The valve body 5 communicates with the river downstream of the weir body through an outlet 6, and is located in a cavity such as within the nearest seawall.

The valve body 5 is connected to a valve body 8 housed in a float chamber 9 via a link mechanism, which will be described later.
The valve body 5 is connected to the river upstream of the weir through a small outlet 9b provided at the bottom and the outlet 6 to the downstream river.As shown in FIG. The water material 5a is attached, and a counterweight 5b is provided so that it is properly seated at the opening of the drain pipe 4, and is rotated by the hinge 7a at a portion that is on the center line of the drain pipe 4 in the fully open state. It is freely connected to a link 7b, and the link 7b is rotatably supported by a hinge 7C. The upper end of the link 7b is connected to the link 7e by a hinge 7d, the other four links of the link 7e are connected to the link 7g by a hinge 7f, and the other end is rotatably supported by a fulcrum 7h. When the valve body 5 is fully open, the link 7b is parallel to the valve seat, and the links 7e and 7g are substantially straight and perpendicular to the valve seat.

In addition, the hinge 7fK is connected with the rod 71 being substantially orthogonal to the two links of the pond, and the upper end of the rod 7f is connected to the almost horizontal arm 7klC by the hinge 7j.
A shift float 8 is suspended from a hinge 7m at one end of the arm 7, and a counterway h7n is attached to the other end.

is slightly higher than the downstream river water level, so that the top surface matches the upstream river water level when fully open. Further, the height of the frest of the weir 9a of the float chamber 9 matches the upstream river water level when it should be automatically lowered in response to a flood, and the outlet 9b is located at the bottom of the float chamber. In addition, a short pipe or hole for attaching the artificial lodging 4Pn is provided on the upstream surface of the 70-tot chamber 9, and is opened into the water of the side waterway 10.

Next, the effect will be explained.

First, when the upstream river water level reaches a predetermined height, the control channel lO
The water inside flows over the cutout weir 9a, the float chamber 9 becomes full of water, and buoyancy acts on the float 8.

The 70-toe 8 is weighted so that it has a slight electric light even in the water, so the rod suspending it will not break due to its buoyancy.

Therefore, the hinge 7m is lifted and the hinge 7f is pushed down via the link 71, but since the link 7g is supported by the fulcrum 7h, the hinge 7d is pulled down and the link 7b is supported by the fulcrum 7C.

-C/+ -7t bar Reli ζS ri^l/F a1 辶r-tsui Blood Lr5 becomes a fully open collar, and 111 bodies collapse. This condition is shown by the two-dot chain line in Figure 1.

When the weir body 11 begins to fall down, no water flows into the float chamber 9, and on the other hand, water flows from the outflow hole 9b, so the water level in the chamber gradually decreases, but the hole 9 is only a small one. , the drop in water m1 is tm. After completion of the row formation, the water level in the float chamber 9 gradually decreases with sufficient time. Accordingly, the valve body 5 is also gradually lowered, and each link $1 moves in the opposite direction to the above-mentioned opening, and the valve body 5 is completely closed.

Furthermore, before giving a supplementary explanation of the operation, first of all, since the valve body 5 is rotatably supported by the hinge 7a, the valve body 5 is not constrained to be diagonal around 1 of the link 7b, and is uniformly layered on the valve seat, so that it can be rotated with a small force. In addition, the float 8 is located in a float chamber 9 that is empty at all times and is filled with water when it is tipped over, so the stroke can be increased and a large operating energy can be obtained despite the small size. be able to. ′! lfr, When the link mechanism 7 is close to being fully closed, a slight force applied from the rod 71 urges the link 7b toward the valve body using the fulcrum 7h as support,
On the other hand, in other cases, a slight movement of the float 8 causes the valve body 5 to
There is no need to waste the energy of the float as it opens and closes widely.

Note that by manually opening the artificial overturning valve 11, the weir body can be lowered at any time other than during floods.

At this time, all the parts that operate when the building automatically collapses during a flood are activated, so it is possible to comprehensively check for abnormalities at any time.

(Effects) As mentioned above, the device according to the present invention does not cause any trouble due to debris when the weir body is collapsed, and it is extremely easy to remove the debris that would be a hindrance when the weir body is raised, and moreover, it is compact. ! Because it can be constructed as a four-piece structure, construction costs can be reduced, and because of its structure, it can be installed inside the seawall near the gorge, resulting in significant savings in piping and civil engineering costs. .

[Brief explanation of the drawing]

Fig. 1 is an f1 + cross-sectional view showing the main parts of the present invention, Fig. 2 is a schematic diagram showing the entirety of the original equipment, and Fig. 3 is a conventional equipment JI.
LD 砥 abbreviation i prayer picture de roll 1 ~ warm body, 2 ~ pump, 4 ~
Drain pipe, 5-valve body, 7-link mechanism, 8-70-t, 9
~70-Toto chamber, 9a~Notch weir, 9b~Outflow hole, 1
0~side waterway. (1 other person) Figure 2 Teitomerine 1 @ Seisho (Method) February 3, 1985

Claims (1)

[Claims] A pump for water injection is connected to the bag-shaped weir body that crosses the river, and a drain pipe that opens into the river downstream of the weir body is connected, and a valve body is disposed at the opening of the drain pipe so that it can be opened and closed. The float stored in the float chamber and the valve body are connected through a link mechanism, and the float chamber is provided with a cut-out weir that opens at a predetermined water level, and an outflow hole is provided near the bottom of the weir. A bag-shaped weir lodging device characterized by: