JPS5948245B2 - Trapezoidal overturning weir - Google Patents

Description

[Detailed description of the invention] The present invention raises the weir by erecting a door body having the same shape as the cross section of a river Jll or waterway in an overturning weir, and operates while retaining water when half open, and when it is overthrown, the weir is raised. The cross-section of the river channel and the gate body are made to match, eliminating any obstructions in the waterway and providing a stable weir under rising water flow.

A general river channel cross section is a trapezoidal cross section formed by a flat riverbed and sloped surfaces on both sides.

Therefore, conventionally, when installing a rectangular movable weir, the width of the waterway was widened,
In order to install walls on both sides of the vertical plane, and to avoid turbulence and the generation of gravel and sediment, it is necessary to install a guide wall on the waterway, which serves as a side wall, at a certain angle from the weir upper wall in the downstream direction. Ta.

An object of the present invention is to satisfy the following items.

A Trapezoidal movable weir, cross section of the waterway at the top of the weir is shown above.

It is made to match the cross section of the downstream waterway, eliminates the need for a side wall and a guide wall extending downstream above it, and also eliminates the need to provide a storage pit for hydraulic equipment etc. deep near the river bed, making civil engineering work easier. By reducing the amount, construction costs can be greatly reduced.

B. A trapezoidal weir that can be raised to a predetermined water level when erected, measures the water level when half-open, and matches the cross section of the waterway when it is collapsed, eliminating any obstructions to the waterway.

C. In order to avoid damage caused by falling objects and abnormal dams caused by blocking falling objects, and to facilitate inspection and maintenance, drive machinery such as hydraulic equipment, wire ropes, etc.
The structure shall not include power transmission devices such as chains and spindles underwater.

The details of one embodiment of the present invention will be described below with reference to the drawings.

In Figures 1, 2, and 3, A is a river, 1 is a flat bottom river bed, and 2 is a river bed with a side slope.

The direction of flow is indicated by an arrow.

A trapezoidal overturning weir B according to the present invention is provided on the riverbeds 1 and 2.

This trapezoidal overturning weir B consists of slope door bodies 3, 3 made of right-angled triangular steel plates that are erected on the slope riverbeds 2, 2 of both measuring sections, respectively, tilting downstream at a slight angle, and slope gate bodies 3, 3 made of steel plates in the shape of a right triangle, and the bottom riverbed in the center. 1
A central door body 4 made of a rectangular steel plate is provided on the same plane as the slope door body 3.3 with a slight inclination toward the downstream direction. is,
It is made of a substantially isosceles triangular steel plate that closes the space (hatched range of imaginary line B') that occurs between the slope door bodies 3, 3 and the central door body 4 when it is collapsed, and one end is fixed to the rod 18 described later. It consists of auxiliary door bodies 5, 5.

The lower end of the slope door body 3.3 has a rotary shaft 7.7 rotatably fitted to a plurality of bearing hardware 6 fixed to the slope river bed 2, 2.
The lower end of the center door body 4 is similarly fixed to a rotating shaft 8 provided in the bottom river bed 1.

It is assumed that the axes of the rotating shafts 7, 7 and 8 intersect at a point C, respectively.

A connecting portion between the slope door bodies 3, 3 and the slope river bed 2, 2, and
The connecting portion between the central door body 4 and the bottom river bed 1 is connected to each river bed 2, as shown in FIGS. 4 and 5. 2. Each rotating shaft 7. 7. A watertight rubber 10 sliding on the outer surface of the weir 8 is used to ensure watertightness at the bottom of the weir, and a watertight rubber 11 is installed at the side end of the sloped door 3 at the contact area between the auxiliary gates 5, 5 and the sloped door 3. By installing and sliding the outer surface of the auxiliary door body 5.5, the amount of water in the height direction of the weir is measured and water leakage from the trapezoidal overturning weir B is prevented.

Also, each door body 3. 3. Reinforcing girders are appropriately provided at the upper end, side end, and inside of each of the parts 4 and 4.

A girder 12 fixedly installed orthogonally to the rotating shaft 8 extends to the upper part of the side end of the central door body 4, and a bearing metal fitting 13 is fixedly installed at the tip.

As shown in FIGS. 6 and 7, the bearing hardware 13 has a shape that projects outward from the upper end of the central door body 4. As shown in FIGS.

A hinge receiving fitting 16 that fits the upper end pin 14 into the bearing fitting 13 and fixes the lower end hinge fitting 15 to the side end of the rotating shaft 7.
A rod 18 is provided which is connected by a pin 17.

The axis of the pin 17 is orthogonal to the axes of the rotating shaft 7 and the pin 14, and the rotating shaft 7.8 and the axes of the pins 14 and 17 are arranged so as to intersect at the point C.

The rod 18 rotates with respect to the center door body 4 by the angle of the gradient of the slope riverbed 2, and connects the auxiliary gate bodies 5, 5 fixed thereto to the central door body 4 in a plane parallel to the slope door body 3.3. At the outside along the side edges, it rises and falls together with the central door body 4, but at the same time, the rotational torque is transmitted to the rotating shaft 7 at the connecting part of the hinge metal fitting 15, hinge receiving metal fitting 16, and pin 17, and each door body 3°4 .5 is made to undulate.

As shown in FIG. 9, one end of a torque arm 19 is fixedly attached to the upper end of the rotating shaft 7, which is a water drainage part, and the other end of this torque arm 19 has the tip of a ram 21 of a hydraulic cylinder 20 pivoted thereon. It is worn.

Next, the operation of this trapezoidal overturning weir B will be explained.

When the ram 21 of the hydraulic cylinder 20 is linearly moved from the standing state shown in FIGS. 1 and 2, the rotating shaft 7 is rotated by the torque arm 19 in the direction of the arrow 22 in FIG. 5, and this rotational force is The hinge bracket 16→rod 18→bearing hardware 13→girder 12→rotating shaft 8, and each center, slope, and auxiliary door body 4. 3. 5 in the downstream direction of the river A, and finally each door body 4. 3. 5 is laid down to the bottom riverbed 1 and slope riverbed 2 positions, and the soil water is discharged.

Conversely, when the ram 21 of the hydraulic cylinder 20 is extended, the rotating shaft 7 rotates in the direction opposite to the arrow 22 in FIG.
In the same manner as in the case of lodging, the rotational force is transmitted in the opposite direction to each door body 4. 3. 5 is erected and the earth is buried.

Thus, according to the present application, the above A and B.

This invention can be said to be a useful invention that can exhibit the effect of C.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and Fig. 1 is a perspective view of a trapezoidal overturning weir, Fig. 2 is a plan view, Fig. 3 is a rear view, and Fig. 4 is a view taken along the X-X axis in Fig. 3. Fig. 5 is an enlarged sectional view along the Y-Y axis of Fig. 3, Fig. 6 is a partially enlarged view of Fig. 2, Fig. 7 is a partially enlarged view of Fig. 3E, and Fig. 8 is a rotational force. FIG. 9 is a perspective view showing the transmission mechanism, and FIG. 9 is an enlarged sectional view taken along the Z-Z axis in FIG. 1...Bottom flat river bed, 2...Slope river bed, 3...Slope door body, 4...Center door body,
5...Auxiliary door body, 6...Bearing hardware, 7
, 8... Rotating shaft, 9... Threshold hardware, 1
0, 11... Watertight rubber, 12... Digit,
13...Bearing hardware, 14...Pin, 1
5... Hinge metal fitting, 16... Hinge receiving metal fitting, 17... Pin, 18... Rod, 19... Torque arm, 20 ... Hydraulic cylinder, 21 ... Ram, 22 ...
・Arrow, A...River JIL B...Trapezoidal overturning weir, B'...Virtual line indicating weir collapse state, C
・・・・・・Intersection of rotation axis and pin axis. Figure 6

Claims (1)

[Claims] 1. In a river with a substantially trapezoidal river cross section, a right triangular double slope door body with a rotation axis along both river bed slopes at the lower end, which is erected in the river flow direction, and a rotation axis also along the bottom river bed surface. A rectangular central door body having a lower end, and a central door body side of the sloped door body have approximately 2 holes that go in and out of the sloped door body.
An auxiliary door body having an equilateral triangular shape is provided, and the lower part of the rod pivoted to the outside of the upper end of the central door body is placed at the side end of the rotation axis of the slope door body, and is orthogonal to the pivot axis and the axis of the rotation axis of the slope door body. The trapezoidal overturning weir is characterized in that the central door body is pivoted so as to have a pivot axis that intersects with the axis of the rotation axis of the central door body, and the respective door bodies are connected and raised and lowered.