JPS6245118B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a scuttling device that allows a buoy to be scuttled into the water by remote control or by a timer when its purpose of use is completed.

Collecting or transmitting various types of information on the water, such as in the ocean or into space,
Alternatively, a buoy equipped with appropriate equipment may be floated as a marker. It is well known that such information transmission means utilizes sound waves, radio waves, light, etc., and can be arbitrarily configured or used in combination depending on the purpose.

However, there are cases where it is difficult to retrieve the buoy after it has achieved various desired operating functions after being suspended on the ocean. For example, it is difficult to search for a floating point, it costs a considerable amount of money to set sail for a ship, or it is impossible to recover it even if you want to do so quickly. I don't mind. In such a case, scuttling the buoy by remote control or the like is prevented from becoming a hindrance.

In view of the above-mentioned points, the present invention aims to provide a scuttling device that receives a command signal from a remote or on-board timer, detects it, and introduces water into the interior of the buoy to scuttle the buoy. Therefore, the configuration of the present invention includes a hole that communicates the inside and outside of the buoy at a position that is at least below the water surface of the buoy when the buoy floats underwater, and a stopper that seals the hole watertightly from the outside. It is characterized by comprising an electromagnet inside and an opening means for pushing out the stopper and opening the hole by energizing the electromagnet. In this way, even with an extremely simple configuration, it is possible to sink the ship reliably and safely at any time without the danger of explosives. The present invention will be described below with reference to embodiments and the drawings.

Figure 1 schematically shows a cylindrical buoy 1, with a radio transmitting and receiving antenna 3 mounted on the top floating above the water surface 2.
A wireless device 4 is connected thereto, and a wireless device battery 5 is mounted below. Then, the scuttling device 6 of the present invention is installed in the main part of the position below the water surface.
is provided.

FIG. 2a schematically shows, in partial cross section, one embodiment of the invention described above. Projection part 1 of wall surface 11 of buoy 1
2 has a hole 13 that communicates between the inside and outside, and a large diameter recess 14 is formed on the outside of this hole 13. Then, an O-ring 15 is attached to the recess 14 as a packing, and a removable stopper 16 is inserted into the hole 13 from the outside. The stopper 16 is held by contact pressure with the O-ring 15 to keep the inside and outside airtight (watertight). Furthermore, when underwater, inward pressure is exerted by water pressure, so it does not naturally escape.

A linearly driven electromagnet 20 is fixed (the method is not shown) coaxially with the stopper 16 inside the buoy, and an operating shaft 2 connected to a suction operating piece 21 of this electromagnet 20
2 faces and is in contact with or close to the inside of the stopper 16 when the electromagnet is inactive.

One end of the excitation coil of the electromagnet 20 is connected to a battery 30.
The other end is connected to one pole of the battery 30 through a contact 32 of a relay 31, respectively. The operation input terminal 33 of the relay 31 is connected to the wireless device 4
It is connected to a detection device (not shown) that discriminately detects a specific command signal from. Note that the battery 30
may be the wireless device battery 5.

With the above configuration, the buoy 1 performs a prescribed operation while floating on the ocean, sends and receives various information to and from a remote aircraft, ship, ground station, etc. via the wireless device 4, and then completes its operation. , transmits a coded signal at a specific frequency for operating the scuttling device 6 from the above or other remote location. The radio device 4 of the buoy that received this radio signal detects the signal,
The relay 31 is energized and energized, and the contacts 32 are closed.
Since the electromagnet 20 is supplied with current from the battery 30, the actuating piece 21 is attracted and moved in the direction of arrow A. This state is shown in FIG. 2b.

As is clear from figure b, the actuating piece 21 is the electromagnet 2.
When aspirated to 0, the actuating shaft 22 will push outward the stopper 16 at its tip, which will cause the stopper 16 to
Since the contact engagement with the ring 15 is released and the protrusion 12 is pushed out as shown in the figure, the inside and outside of the buoy are communicated through the recess 14 and the hole 13, so water ( seawater) flows in. Seawater continues to flow through the hole 13 while discharging the air inside the buoy through this hole, and eventually the buoy loses its buoyancy and sinks into the water. Note that when the stopper 16 is pushed out from the protrusion 12, it falls and leaves. In the above example, the scuttling device was installed at one location below the water surface of the buoy, but
This can be installed in multiple locations, even on the top exposed above the water surface, and in these cases each can be connected in parallel with one battery/relay, which will further reduce the flow of water into the buoy. The inflow speed is accelerated. Particularly in the latter case, the internal air can be discharged stably, so that water can flow in extremely quickly.

Another embodiment of the present invention is shown in FIG. 3 in its installed state a and in its operating state b, but this embodiment differs from FIG. 2 in that instead of using a linear drive type electromagnet, A rotary electromagnet (rotary solenoid) 25 is arranged at a distance apart (the fixing means is not shown), and an arm 27 is fixed to the suction rotary body 26 of the electromagnet 25 and a connecting rod connected to the tip of the arm 27. 2
8 is in contact with the inner side of the stopper 16.

In this case as well, the effect is the same as described above, and by energizing the electromagnet 25, the rotating body 26 and the arm 27 are rotated in the direction of arrow B. This state is shown in Figure b, where the connecting rod 28 pushes out the stopper 16.

The present invention is also not limited to the above-mentioned embodiments; for example, pushing out the cap does not utilize direct electromagnetic force, but instead uses a combination of a spring and a link (lever) to bias and lock the cap in the closing direction. Then, the locking part is released by the action of an electromagnet to open the bottle. Alternatively, the closure may be biased inward with an appropriate spring force to prevent the closure from being opened accidentally or due to internal pressure during storage before the buoy is placed in water. The same applies to the shape and purpose of the buoy, and the location of the scuttling device can be arbitrary as long as it is on the bottom or any other position below the water surface, and includes implementation in combination with an exposed part above the water surface as described above. . Transmission of the signal is not limited to space, but may also be from underwater, and may be effected by, for example, a sound wave signal. Furthermore, the scuttling command signal of the present invention is not limited to being generated by remote control from the outside, and may be activated by energization after a predetermined time when the buoy is thrown in using a suitable timer. A relay for energizing can be implemented instead of, for example, a semiconductor device. This can also be achieved by forming a thin plate with a stopper attached, and opening the stopper by piercing it with a movable part of an electromagnet or a connecting rod.

As mentioned above, the buoy scuttling device according to the present invention can push out and open the stopper by energizing the internal electromagnet, allowing water to flow in, causing the buoy to lose its buoyancy and scuttling. It is safe and reliable, and since it does not require multiple configurations, it is also low cost and practical.

[Brief explanation of the drawing]

Fig. 1 is an external side view of an example of a buoy, Fig. 2a is a schematic diagram of a partial cross-sectional configuration of an embodiment of the present invention, Fig. 2b
3 is an explanatory diagram of its operation, FIG. 3a is a schematic diagram of another embodiment, and FIG. 3b is an explanatory diagram of its operation. In the figure, 1 is a buoy, 2 is a water surface, 3 is an antenna, 4 is a wireless device, 5 is a battery, 11 is a side wall, 12
13 is a hole, 14 is a recess, 15 is an O-ring, 16 is a stopper, 20 is a linear drive type electromagnet, 21
is an actuation piece, 22 is an actuation shaft, 25 is a rotating shaft electromagnet,
26 is a rotating body, 27 is an arm, 28 is a connecting rod, 3
0 is a battery, 31 is a relay, 32 is a contact, and 33 is a terminal.

Claims (1)

[Claims] 1. A hole that communicates the inside and outside of the buoy at least at a position below the water surface of the buoy when the buoy floats underwater, a stopper that seals the hole watertightly from the outside, and an electromagnet inside the buoy that connects the electromagnet. A buoy scuttling device characterized by comprising an opening means for pushing out the stopper and opening the hole by applying electricity.