JPS5931784Y2 - Regular use gate for drinking mouth - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a flow rate regulating gate installed at one mouth of a spillway for land use provided on a dam wall or the like.

Conventionally, the overland spillway installed on the dam wall is equipped with a preliminary gate for opening and closing, a sector gate for adjusting the flow rate, etc. During maintenance, the preliminary gate is closed to control the flow inside the spillway. However, since the sector gate is installed in the middle of the spillway, it is not only difficult to maintain, but the structure inside the spillway is complicated, making construction work difficult. The problem was that it was difficult.

This invention was developed to eliminate the above-mentioned drawbacks of the conventional system, and allows the opening area of the gate to be varied, allowing for the opening and closing of the spillway and the adjustment of the flow rate, as well as ease of maintenance. The purpose is to provide a gate for regular use at the mouth of the waterway for Yusuisha.

In order to achieve the above object, the present invention provides a gate main body consisting of left and right side frames and plate-shaped shielding parts connected to the lower ends of both side frames, and and an upper end frame portion arranged to form an opening with the gate main body, the opening facing the mouth of the water discharge channel, and allowing vertical movement of the gate main body. A first guide rail is provided on the wall of the dam to allow vertical movement of the upper end frame, and a second guide rail is provided on the wall of the dam that allows the upper end frame to move in the vertical direction and also regulates the lowering limit position of the upper end frame. A stopper is provided on the upper edge of the spout, and although the structure is simple, the flow rate of the waterway can be easily adjusted.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

In the drawing, reference numeral 1 denotes the mouth of a waterway waterway 2 provided at the level of the dam's full water level, and 3 denotes a gate for regular use at the mouth, which is disposed close to the periphery of the mouth.

This gate 3 consists of an upper end frame portion 4 and a gate main body 6, and an opening portion 7 is formed by the upper end frame portion 4 and the gate main body 6.

That is, the left and right side frames 5, 5 corresponding to the street half 6a of the gate body 6, the upper edge of the plate-shaped shielding part corresponding to the substantially lower half 6b of the gate body 6, and the left and right side frames 5. , 5, and a rectangular opening 7 is formed between the upper end frame 4 and the upper end frame 4 disposed between the opening 7 and the upper end frame 4 disposed between the upper end frame 4 and the upper end frame 4 disposed between the upper end frame 4 and the upper end frame 4 disposed between the upper end frame 4 and the upper end frame 4 disposed between the upper end frame 4 and the upper end frame 4, which forms a rectangular opening 7.
is coming.

8 is a gate body 6 for raising and lowering the gate body 6;
A wire is hung on a pulley 9 provided at the upper end, that is, the upper end of the left and right side frame parts 5, and 10 is a guide rail provided vertically on the dam wall surface 11 to guide the raising and lowering of the gate body 6. The guide rails 10 are located on the left and right sides a little apart from both sides of the spout 1, and rollers 12 that come into contact with the guide rails 10 are provided at appropriate positions on the back surface of the gate body 6.

The length of the guide rails 10, 10 is determined by the length required for the gate body 6 to open and close the spout 1, and the length that allows the gate body 6 to be pulled up to the top of the dam during maintenance.

Reference numeral 13 denotes a wall surface 1 at a position above the mouth part 1 and corresponding to the left and right sides of the upper end frame part 4 of the dam so that the upper end frame part 4 can be pulled up to the upper part of the dam during maintenance.
A guide rail 13 is provided in the vertical direction on 1, and a roller (
(not shown), and the upper end frame portion 4 is engaged with a stopper 15 provided at the upper edge of the spout portion 1 to restrict its lowering limit position.

As shown in the drawings, the opening 7 of the gate 3 has a bell mouth shape centered on the spout 1 side, and the upper end frame 4, the left and right side frames 5 of the gate body 6, and the upper part of the shielding part. The edges are formed so as to be gradually inclined from the upper and lower and left and right dam sides toward the spout 1 side.

This rectifies the water.

Reference numeral 14 denotes an air supply path formed to open into the mouthpiece 1.

In the above configuration, when the spout 1 is fully opened, the gate main body 6 is lowered along the guide rail 10 by the wire 8 to the lower limit with the upper end frame 4 locked by the stopper 15. As shown in the figure, the opening 7 formed by the upper end frame 4 and the gate main body 6 perfectly matches the spout 1, and the spout 1 is fully opened. A large amount of surplus water can be discharged from the
Further, by pulling up the gate body 6 a little as shown in FIG. 6, the opening 7 becomes smaller, and the lower part of the spout 1 is closed by the shielding part of the gate body 6, leaving only the upper part of the spout 1 open. Thereby, the amount of water discharged from the spout 1 can be adjusted to a small amount.

At this time, the opening 7 maintains its bell mouth shape.
Only the opening area is reduced.

When the spout 1 is completely closed, the gate body 6 is pulled up as shown by the two-dot chain line in FIG. 7 disappears, the spout 1 is completely closed by the shielding part of the gate body 6, and water discharge from the spout 1 can be stopped.

In addition, when performing maintenance, when the water level in the dam drops below the mouth part 1, by pulling up the gate body 6 with the wire 8, the upper end frame part 4 will also be pulled up all at once, and the upper part of the dam of the gate 3 will be pulled up. It can be easily raised up to that point.

As described above, according to the commonly used gate at the mouth of the present invention, not only can a single gate be used to open and close the spillway, but also to adjust the opening degree (flow rate adjustment) of the spillway by changing the opening area of the gate. The configuration can be simplified compared to the conventional case where spare gates, sector gates, etc. are provided.

Particularly when installing conventional sector gates, etc., the structure inside the spillway is complicated, making construction work difficult and maintenance difficult. This can be easily done by pulling up the gate when the water level in the dam drops.

Furthermore, the gate of the present invention has the advantage that when opening/closing the waterway and adjusting the opening, the upper end frame does not move up and down, and only the gate body needs to be moved up and down, so it requires less power. have

In addition, since the opening/closing and opening degree adjustment of the Yusuisha drainage channel is done by varying the opening area of the gate, the lower end surface of the upper end frame, the left and right side frames of the gate body, and the upper edge of the shielding part. If both are formed into a bellmouth shape, the bellmouth shape can be maintained even if the opening area is changed, and water can always flow into the spillway in a rectified state. .

[Brief explanation of drawings]

The drawings show an example of the implementation of the present invention, and FIG. 1 is a front view, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, and FIG. 3 is a cross-sectional view taken along line B-B in FIG. 4 is a sectional view taken along line CC in FIG. 1, FIG. 5 is a sectional view taken along line DD in FIG. 1, and FIG. 6 is a longitudinal sectional view showing a state during flow rate adjustment.

Claims (1)

[Scope of utility model registration request] A gate body consisting of left and right side frames and plate-shaped shielding parts connected to the lower ends of both side frames, and an opening between the gate body and the gate body, which is disposed between the left and right side frames of the gate body. A first guide rail is provided on the dam wall surface, the opening portion facing the mouth of the spillway and the upper end frame portion forming a top end frame portion, and allowing the vertical movement of the gate body. , characterized in that a second guide rail that allows the upper end frame to move in the vertical direction is provided on the wall of the dam, and a stopper that restricts the lowering limit position of the upper end frame is provided on the upper edge of the spout. A gate for regular use at the mouth of the drinker.