JPS6323488B2 - - Google Patents

Description

[Detailed Description of the Invention] Measurement of the tide level is carried out at a tide gauge station installed on the shore.

This tide gauge station has a tide gauge well fixed to something to avoid the effects of waves, allowing seawater to be introduced into the well, and measuring and recording the tide level by raising and lowering a float floating inside the well.

In this way, conventional tide gauges do not actually measure the tide offshore, but only measure it on land, and use the estimated value to determine the tide level near the center of the bay.

However, in places where the bay is quite wide and the area near the entrance of the bay is extremely narrow, the tide level may differ between the center of the bay and the area near the entrance.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is designed to actually measure the tide level on the sea, and embodiments thereof will be described with reference to the accompanying drawings.

In the present invention, a tide level gauge is installed on a moored buoy directly connected to the bottom of the water, and by setting the buoy offshore, it is possible to actually measure the tide level at that location.

As shown in Figure 1, a mooring type buoy directly connected to the seabed is a buoy that is attached to the seabed by attaching the lower end of the buoy rod 1 to a mooring ring 2 and a shackle 3, or by inserting a depth adjustment chain (not shown) between them. A buoyant body 5 is connected to the sinker 4 above, and the buoyant rod 1 is provided with a buoyant body 5, which is constantly immersed completely in the sea, and the buoyant rod is connected so that the sea level is in the middle of the buoyant rod 1 above the buoyant body 5. 1 is pulled in, and the entire buoy rod is always urged vertically using the total buoyancy of the buoyant body.

The present invention provides this type of retractable mooring type buoy with a tide gauge, thereby making it possible to accurately measure the tide level under conditions where there is no disturbance due to waves.

In order to eliminate the movement caused by waves, it would be better to bury the lower end of the buoy rod 1 directly into the seabed, but this is difficult to adopt because it requires a huge amount of construction cost, and there was no other suitable method in the past. Therefore, the present invention has discovered that the retractable mooring type buoy has a strong buoyancy (biasing force) as described above, and can maintain the buoy rod 1 vertically at all times, and has equipped this special buoy with a tide gauge. It is something.

Therefore, in the present invention, the interior of the buoy rod 1 that can reach near the bottom of the water is partitioned by the partition plate 1a at an underwater position above the buoyant body 5 and close to the sea surface, and the partition plate 1a is connected to the upper end of the pipe 6. The lower end of the pipe 6 is opened outward near the lower end of the buoy rod 1, and the lower end of the pipe 6 is opened to the outside near the lower end of the buoy rod 1. Partition plate 1a that keeps seawater out
It can be introduced into the empty chamber 1b higher up.

The lower end of the pipe 6 is always located in the sea, deep near the seabed, and the seawater flows into the chamber 1b through the pipe 6, so that the water surface is higher than that outside the pipe. equal to the height of sea level.

On the other hand, the inside of the buoy rod 1 below the partition plate 1a becomes another empty space 1c, which causes a buoyant force other than the buoyancy body 5 to be generated on the buoy rod 1, and a biasing force to make the buoy rod 1 more upright. works effectively.

A floating body 7 is installed in the empty space 1b, and this and the buoy rod 1
It communicates with the tide gauge 8 installed at the top of the.

The tide gauge 8 can be of a conventionally known Foos type.

When the height of the sea surface changes due to the ebb and flow of the tide, the floating body 7 inside the cylinder of the buoy rod 1 moves up and down following it, and the tide gauge 8 can observe and record the tide level accordingly.

In this case, the lower end of the pipe 6 opens in a deep and quiet place near the seabed, so even if the seawater outside the buoy rod 1 is agitated, there is almost no effect of wave pressure (wave pressure is deeper than the sea surface). The water within the buoy rod 1 is calm and unaffected by it, the water surface is not affected by it, the water level does not rise or fall due to waves, and the tide level is accurately indicated. Can be done.

That is, in carrying out the present invention, the lower end of the pipe 6 that communicates between the inside and outside of the cavity 1b of the buoy rod 1 is always under the sea, regardless of the tide, and is located deep near the seabed. Since the inside and outside are connected in the sea, there is no risk that the water level inside the buoy rod 1 will change suddenly due to wave pressure, and the tide gauge is less likely to malfunction.

According to the present invention, it is possible to actually measure the tide level on the sea, and the measurement results are extremely accurate.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view showing the state of use, and FIG. 2 is an enlarged vertical sectional view of a part thereof. 1...buoy rod, 1a...partition plate, 1b, 1c...
...Vacancy, 2...Mooring ring, 3...Shackle, 4...
...Sinking weight, 5... Buoyant body, 6... Pipe, 7... Floating body, 8... Tide gauge.

Claims (1)

[Claims] 1. A buoyant body 5 is installed in the middle of the buoy rod 1 that can reach near the seabed, and a mooring device is installed at the lower end of the buoy rod 1, so that the buoyant body 5 is continuously fully submerged in the sea and the sea surface is above the buoyant body 5. Pull in the buoy rod 1 so that it is in the middle of the buoy rod 1, and attach the mooring device to the sinker 4 on the seabed.
The partition plate 1a is moored to the buoy rod 1 at a position in the water above the buoyant body 5 and close to the sea surface.
The partition plate 1a communicates with the upper end of the pipe 6 and opens upward, and the lower end of the pipe 6 opens outward near the lower end of the buoy rod 1. Seawater can be constantly introduced into the cavity 1b above the partition plate 1a, and a floating body 7 with a tide gauge 8 connected to the top is installed in the cavity 1b. buoy.