Simple self-destruction device for drifting buoy

Abstract

A simple self-destruction device for a drifting buoy belongs to the technical field of drifting buoys and comprises a compression screw (1), an upper gasket (2), a temperature-sensing glass ball (3), a connecting piece (4), an electric heating wire (5), a lower gasket (6), a sealing ring (7), a spring (8) and the like, and the compression screw (1), the upper gasket (2), the temperature-sensing glass ball (3), the lower gasket (6), the sealing ring (7) and the spring (8) are sequentially mounted on the connecting piece (4) from top to bottom. And the electric heating wire (5) is wound on the temperature sensing glass ball (3). The simple self-destruction device for the drifting buoy is simple and reliable in structure, small in size, low in cost, suitable for drifting buoys made of any materials, capable of being installed above and below the water level in a sealed shell of the drifting buoy and used for ventilation and water inflow in the self-destruction process and accelerating the self-destruction process.

Description

Technical Field

[0001] The invention relates to a self-destructing device, in particular to a simple self-destructing device for a drifting buoy, belonging to the technical field of drifting buoys. Background Art

[0002] As a widely used offshore platform, drifting buoys can carry some small marine instruments and equipment to observe the marine environment, including temperature, depth, salinity, underwater noise, ocean currents and waves, etc. The drifting buoy is powered by its internal battery and does not require an external power supply. It is equipped with Iridium, GPS or Beidou for positioning and data transmission. After completing the intended mission, it can be recycled or self-destructed and sunk to the seabed to prevent being salvaged by others or becoming floating garbage in the ocean.

[0003] For drifting buoys that need to self-destruct, the following methods are usually used for self-destruction: 1. Explosion, by igniting the internal pyrotechnics to explode and destroy the sealing of the shell; 2. Thermal melting, by using an electrothermal conversion device to melt part of the shell and destroy the sealing of the shell; 3. External trigger, by starting the destruction of the shell sealing through an external trigger device. The above self-destruction devices all have certain defects: there are safety risks during the storage and transportation of pyrotechnics; there is a risk of failure when the drifting buoy shell contacts seawater and the heat melts to the contact surface between the shell and seawater; external triggers are prone to attachment of marine organisms and also have the risk of failure. Summary of the invention

[0004] In order to solve the limitations of the existing drifting buoy self-destruction devices, the present invention provides a simple self-destruction device for a drifting buoy, which realizes the communication between the inside of the shell and the external air and seawater by controlling the integrity of the temperature sensing element, and then completes the water intake of the drifting buoy shell according to the principle of communicating vessels. When the weight of the water in the shell is greater than the buoyancy of the buoy, the drifting buoy gradually sinks until it sinks to the bottom of the sea, completing self-destruction.

[0005] The present invention is realized by the following technical scheme: a simple self-destruct device for a drifting buoy is composed of a clamping screw, an upper gasket, a temperature-sensitive glass ball, a connector, a heating wire, a lower gasket, a sealing ring, a spring, etc., wherein the clamping screw, the upper gasket, the temperature-sensitive glass ball, the lower gasket, the sealing ring, and the spring are sequentially installed on the connector from top to bottom, and the heating wire is wound on the temperature-sensitive glass ball. The top of the upper gasket is a plane, and the center of the bottom is provided with an inward concave arc; the top center of the lower gasket is provided with an inward concave arc, and the bottom is a plane provided with an annular groove; the top and bottom of the connector are cylindrical, and the middle is a frame; the top of the connector is provided with a threaded hole, and the bottom is provided with a stepped hole; two annular grooves are provided at the junction of the stepped holes at the bottom of the connector, and the outer annular grooves thereof are aligned with the annular grooves at the bottom of the lower gasket; the outer side of the bottom of the connector is in the form of a thread or flange.

[0006] During assembly, first place the spring into the outer annular groove at the bottom of the connector, place the sealing ring into the inner groove at the bottom of the outer connector, place the lower gasket into the bottom of the connector, embed the spring into the annular groove at the bottom of the lower gasket, place one end of the temperature-sensitive glass ball into the center arc at the top of the lower gasket, and place the other end in contact with the center arc at the bottom of the upper gasket. Tighten the clamping screw and use the sealing ring to seal the lower gasket and the connector through the upper gasket, the temperature-sensitive glass ball, and the lower gasket to prevent air or water from entering through the through hole at the bottom of the connector.

[0007] When in use, a simple self-destruct device for a drifting buoy should be used in pairs, one installed above the water level and the other installed below the water level. A simple self-destruct device for a drifting buoy is installed on the sealed shell through the outer thread or flange at the bottom of the connector. When the self-destruction program is started, the heating wire is energized for heating. When the temperature of the heating wire reaches the breaking temperature of the temperature-sensitive glass ball, the temperature-sensitive glass ball breaks, the lower gasket pops up under the action of the spring restoring force, the sealing ring is separated from the lower gasket, and a gap is formed between the lower gasket and the connector. External air or water can enter the sealed shell through the through hole at the bottom of the connector, thereby completing the water-ingress self-destruction of the sealed shell.

[0008] The beneficial effects of the present invention are as follows: a simple self-destruction device for a drifting buoy has a simple and reliable structure, a small size, and a low cost, is suitable for drifting buoys of any material, can be installed above and below the water level line in the sealed shell of the drifting buoy, and is used for ventilation and water intake during self-destruction to accelerate the self-destruction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a cross-sectional view of the present invention.

[0010] Figure 2 It is an installation schematic diagram of the present invention.

[0011] Among them, 1 is a clamping screw, 2 is an upper gasket, 3 is a temperature-sensitive glass ball, 4 is a connecting piece, 5 is a heating wire, 6 is a lower gasket, 7 is a sealing ring, and 8 is a spring. DETAILED DESCRIPTION

[0012] The present invention is described below in conjunction with embodiments.

[0013] A simple self-destruct device for a drifting buoy is composed of a clamping screw 1, an upper gasket 2, a temperature-sensitive glass ball 3, a connector 4, a heating wire 5, a lower gasket 6, a sealing ring 7 and a spring 8. The clamping screw 1, the upper gasket 2, the temperature-sensitive glass ball 3, the lower gasket 6 and the spring 8 are sequentially installed on the connector 4 from top to bottom, the sealing ring 7 is installed between the lower gasket 6 and the connector 4, and the heating wire 5 is wound around the outside of the temperature-sensitive glass ball 3.

[0014] When assembling a simple self-destruct device for a drifting buoy, first place the spring 8 in the outer annular groove at the bottom of the connecting piece 4, place the sealing ring 7 in the inner annular groove at the bottom of the connecting piece 4, place the lower gasket 6 on the spring 8, the annular groove at the bottom of the lower gasket 6 coincides with the spring 8, and the temperature-sensitive glass ball 3 is vertically placed in the arc at the top of the lower gasket 6, and the other end is connected to the arc at the bottom of the upper gasket 2. The top of the upper gasket 2 is connected to the clamping screw 1. By tightening the clamping screw 1, the spring 8 between the lower gasket 6 and the connecting piece 4 is compressed, so that the lower gasket 6, the sealing ring 7 and the connecting piece 4 are tightly combined, so that the lower gasket 6 seals the through hole at the bottom of the connecting piece 4 to ensure the airtightness of the device.

[0015] When in use, a drifting buoy is used in pairs with a simple self-destruct device, one is placed below the water level line of the sealed shell, and the other is placed above the water level line of the sealed shell.

[0016] When the drifting buoy receives the self-destruction command, the heating wire 5 starts to work. When the temperature of the heating wire 5 reaches the rupture temperature of the temperature-sensitive glass ball 3, the temperature-sensitive glass ball 3 shatters, the support between the upper gasket 2 and the lower gasket 6 is lost, and the lower gasket 6 is separated from the connecting piece 4 under the action of the spring 8, and the sealing ring 7 loses its function. Air can enter the sealed shell from the through hole at the bottom of the connecting piece 4 of a simple self-destruction device for a drifting buoy installed above the water level line, ensuring that the pressure inside the sealed shell is connected to the atmosphere. Seawater can enter the sealed shell from the through hole at the bottom of the connecting piece 4 of a simple self-destruction device for a drifting buoy installed below the water level line. Under the action of the communicating vessel principle, seawater continuously enters the sealed shell from the simple self-destruction device for a drifting buoy installed below the water level line until the overall weight inside the sealed shell is greater than the buoyancy of the sealed shell, and then it begins to sink until it finally sinks to the bottom of the sea and completes self-destruction.

Claims

1. A simple self-destruct device for a drifting buoy comprises a clamping screw (1), an upper gasket (2), a temperature-sensitive glass ball (3), a connecting piece (4), a heating wire (5), a lower gasket (6), a sealing ring (7), a spring (8), etc., wherein the clamping screw (1), the upper gasket (2), the temperature-sensitive glass ball (3), the lower gasket (6), the sealing ring (7), and the spring (8) are sequentially installed on the connecting piece (4) from top to bottom, and the heating wire (5) is wound around the temperature-sensitive glass ball (3).

2. A simple self-destruction device for a drifting buoy according to claim 1, Its characteristics are: The top of the upper gasket (2) is a plane, and the center of the bottom is provided with a concave arc.

3. A simple self-destruction device for a drifting buoy according to claim 1, Its characteristics are: The top center of the lower gasket (6) is provided with an inwardly concave arc, and the bottom is a plane with an annular groove.

4. A simple self-destruction device for a drifting buoy according to claim 1, Its characteristics are: The top and bottom of the connecting piece (4) are in the form of a cylinder, and the middle is in the form of a frame. The top of the connecting piece (4) is provided with a threaded hole, and the bottom is provided with a stepped hole.

5. A simple self-destruction device for a drifting buoy according to claim 1, Its characteristics are: Two annular grooves are provided at the junction of the stepped holes at the bottom of the connecting piece (4), and the outer annular grooves thereof are aligned with the annular grooves at the bottom of the lower gasket (6).

6. A simple self-destruction device for a drifting buoy according to claim 1, Its characteristics are: The outer side of the bottom of the connecting piece (4) is in the form of a thread or a flange.

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