JPS6243004B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gate mounting structure for a water stop weir that allows a gate in flowing water to be raised while receiving pressure from running water by only having one end supported by a door groove provided on the embankment side. be.

In general, a cut-off weir has a gate 4 inserted into the groove of a column 2 planted in the river and the groove of a column 3 planted on the embankment side, as shown in Fig. 1. A water stop gate elevating device 1 that is raised and lowered by a lifting device 6 placed on a member 5 horizontally suspended between the upper end of the column 2 and the upper end of the column 3 is provided at the end of the water stop gate. By closing 4, water is taken from the dam water intake, and is used for irrigation, etc. Furthermore, since the water stop weir causes sediment to accumulate on the riverbed, the gate 4 of the water stop gate device 1 provided at the end of the water stop weir is opened to discharge the earth and sand. In particular, when the water rises due to a muddy stream or heavy rain causing a lot of sediment, etc. to flow down, the gate 4 is left open to allow the sediment, etc. to pass through, and the gate 4 is opened.
The power of running water is used to move the sediment that accumulated during the closure down.

However, when the water level rises and the gate 4 is open when the water rises, and the water level of the flowing water exceeds the lower end of the gate 4 and the lower end is submerged, the column 2 becomes an obstacle to the flowing water, and the flowing water etc. There was a drawback that the floating objects were stopped by the gate 4 or the column 2 and filled the opening of the gate 4. Furthermore, there is a problem in that planting the pillars 2 on the riverbed lengthens the construction period, which increases construction costs.

In addition, with overturning gates that move the entire door up and down by rotation, there is a risk that it will stop working due to malfunctions in the hydraulic power source, the electrical system, or the operating parts of the mechanism, making it extremely dangerous when the water rises. One drawback was that regular maintenance was a pain.

Therefore, the present invention aims to install a gate that can be raised and lowered with only one end supported by a door groove provided on the embankment, without having to plant a column with a gate groove on the riverbed, and that can be pulled up to the embankment when the water rises. It provides structure.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to FIGS. 2 to 6 of the accompanying drawings. Figure 2 shows
A perspective view showing a gate mounting structure in a water stop weir.
This is composed of a water stop weir 10 and a gate lifting device 20. The cut-off weir 10 includes a river bed 11, a fixed weir 12, an embankment 13, a gate 16, and a water intake 17. The fixed weir 12 is provided on the river bed 11 perpendicular to the water flow direction A, and forms an opening 14 between the fixed weir end surface 12a and the embankment 13 on the riverbank side that is substantially perpendicular to the fixed weir 12. At the same time, a door groove 1 is provided on the fixed weir end surface 12a of the opening 14.
2b is formed. Embankment wall surface 13 of the opening 14
A is a substantially cross-shaped door groove 15 that is bored downward from the upper surface of the embankment 13, and one side thereof forms a door groove 15a that is open in the vertical direction. The water stop gate 16 includes a longitudinal portion 16a and protruding portions 16b, 16b protruding from the longitudinal portion 16a near one end of the longitudinal portion 16a.
, one end surface of the longitudinal portion 16a and the protruding portion 16
The roller 16 attached to both end surfaces of b and 16b
d, 16d, and 16d. (See FIG. 5) Furthermore, the water stop gate 16 has a pair of hook-shaped rods 16e, 16e planted on its upper surface. Note that the protrusions 16b, 16b may be attached to the roller 1 if necessary.
It may be wider than 6d or 16d or may be semi-cylindrical, and there will be no problem if the door groove 15 is also made to have a shape similar to these. A lifting device 20 for lifting and lowering the water stop gate 16 includes a support column 21 and a beam member 2.
2, a hoist 23, and the support column 2
1 is planted on the top surface of embankment 13. (See FIG. 3) The beam member 22 is provided so as to project from the support column 21, and is slidably suspended from the hoist 23. A lifting beam 24 is suspended from the hook 23a of the hoist 23. The lifting beam 24 includes a longitudinal portion 24a and a longitudinal portion 24a.
A T-shaped portion 24C and rollers 24d, 2 formed at one end in substantially the same shape as the cross-shaped end and rollers 16d, 16d, 16d of the water stop gate.
4d, 24d, and a pair of hooking rods 24e, 24e made of steel bars or the like, which are vertically installed by bolting or welding at a certain position below the longitudinal portion 24a, and the tip of the hooking rod 24e. The hook-shaped rod 16e of the water stop gate 16 is hooked by a hook ring 24f formed in the water stop gate 16, thereby suspending the water stop gate 16. (See FIG. 4) The water stop gate 16 is raised and lowered by the lifting device 20 with its cross-shaped ends and rollers 16d, 16d, 16d mounted in the cross-shaped groove 15.

Further, the water stop gate 16 is lowered, and the other end of the longitudinal part 16a of the water stop gate 16 is a fixed weir door groove 12b.
to close the opening 14. (See Figure 5) In the present invention having the above-described structure, in normal times, the opening 14 is closed with the water stop gate 16 in order to take in the necessary amount of water from the water intake 17, but the water stops when water increases. Sometimes, the water stop gate 16 is raised quickly to prevent water from flowing through the opening 14 in order to maximize the flow of water and to avoid the risk of the water stop gate 16 being damaged or buried by sediment flowing on the riverbed. It is also designed to spit out dirt and sand. Lifting of the water stop gate 16 when the water increases is carried out by hooking the hook rod 24e of the lifting beam 24 to the hook-shaped rod 16e on the water stop gate 14. However, when the hooking rod 24e enters flowing water, there is a risk that it will be swept downstream by the pressure of the flowing water, so that the T-shaped portion 24c of the lifting beam 24 and the rollers 24d, 24d, 24d may be exposed to the T-shaped portion 24c of the lifting beam 24 during the descent. is attached to the cross-shaped door groove 15 so as not to be affected by the pressure of running water. Then, the hook rod 24e hooks with the hook-shaped rod 16e of the water stop gate 16 in flowing water, and the water stop gate 16 is lifted up by the lifting device 20. The water stop gate 16 comes off the fixed weir groove 12b during its pulling up and is supported by only one end, receiving a large water flow pressure in the B direction. (6th
(See figure) However, the water flow pressure is caused by the rollers 16 attached to the protruding members 16b, 16b of the water stop gate
d, 16d, and the longitudinal portion 16a of the water stop gate 16.
It acts on the roller 16d attached to one end surface, but these act on the cross-shaped door groove 1 bored in the embankment 13.
Each inner wall surface of 5 is received. Therefore, the water cutoff gate 16, which is separated from the fixed weir groove 12b and supported by only one end, can be reliably raised even if it receives large water pressure during a flood. The raised water stop gate 16 is moved to the pillar body 2 side by the hoist 23 and is rested on a fixing member (not shown).

As described above in detail, the present invention allows the water stop gate to be raised easily and quickly even in the case of a sudden increase in water due to heavy rain.
In addition, there is no need to install a column for a doorway or a gate-shaped structure having the column in the river, and the construction is easy, the construction period is shortened, and the construction cost can be reduced.
Additionally, since there are no gutter pillars or gates in the river, when the water rises, the flow of water is maximized to prevent flooding, allowing driftwood and other debris to flow downstream, making maintenance of the cutoff weir extremely easy. be.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a conventional gate mounting structure for a water stop weir, FIG. 2 is a perspective view showing a gate mounting structure for a water stop weir according to the present invention, and FIG.
FIG. 4 is a front view showing the relationship between the water stop gate and the lifting device in the event of a flood, and FIG. 5 is a front view showing the water stop gate raised by the lifting device.
The plan view of the water stop gate in the closed state, Figure 6, is as follows:
The top view which shows the state of a water stop gate when it rises in response to flowing water pressure is shown. 1...Water stop gate lifting device, 2...Column body, 3...
...Column, 4...Gate, 5...Horizontal member, 6...
Lifting device, 10... Water stop weir, 11... Riverbed, 1
2... Fixed weir, 12a... End surface, 12b... Door groove, 13... Embankment, 13a... Wall surface, 14... Opening, 15... Cross-shaped door groove, 15a... Door groove, 1
6...Water stop gate, 16a...Longitudinal part, 16b...
...Protrusion, 16d...Roller, 16e...Hooked rod, 17...Water intake, 20...Elevating device for water stop gate, 21...Support column, 22...Beam member, 23...
... Hoist, 23a ... Hook, 24 ... Lifting beam, 24a ... Longitudinal part, 24b ... Projection part, 24c ... T-shaped part, 24d ... Roller, 24e ... Hooking rod, 24f ... Hook Stop ring.

Claims (1)

[Claims] 1. A fixed weir installed on the riverbed perpendicular to the water flow direction, an opening formed between the embankment wall facing the fixed weir and the end face of the fixed weir, and a method for closing the opening. In the water cutoff weir, which is composed of a water cutoff gate and a water intake provided on the upstream side of the fixed weir, one of the approximately cruciform grooves protruding downward from the upper surface of the embankment is connected to the embankment wall surface. A substantially cross-shaped door groove having vertical openings, a longitudinal part, a protruding part drilled in the longitudinal part near one end of the longitudinal part, and attached to one end surface of the longitudinal part and the end face of the protruding part. At the same time, the other end of the longitudinal member of the water stop gate is installed in a door groove formed on the end face of the fixed weir to stop water. A gate mounting structure for a water stop weir.