Underwater releasing and recovering device at regular time

Abstract

The invention discloses an underwater releasing and recovering device at regular time. The underwater releasing and recovering device at regular time comprises a box body and a computer connected with the control panel; a storage battery is arranged at the bottom in the box body; an installation plate is arranged in the middle of the box body; the upper part of the installation plate is provided with a control panel and an electromagnet; the control panel is connected with a plug through an electric cable; a cover plate is mounted at the top of the box body through a static seal ring; a moving shaft penetrates through the electromagnet; one end of the moving shaft is provided with a baffle block; the moving shaft which is positioned between the baffle block and the outer end surface of the electromagnet is provided with a spring; the head part of the moving shaft is provided with a releasing rod through a connecting pin; the releasing rod penetrates through the side wall of the box body; the outer wall surface of the box body is also provided with a seal groove through which the releasing rod passes; the seal groove is internally provided with a seal ring which is locked by a spacing block; the outer wall of the box body is also provided with two spacing baffle plates; a floating ball cable rope and an instrument cable rope are respectively fixed on the bottom of the box body; the floating ball cable rope passes through a releasing circular ring and is connected with a floating ball; and the instrument cable rope is fixed on a recovered device. The working efficiency is high.

Description

Technical field [0001] The present invention relates to the technical field of water treatment auxiliary equipment, in particular to an underwater timed release recovery device used for salvaging and recovering measuring instruments or objects under lake or shallow sea water. Background technique [0002] Lakes are water bodies formed by stagnant water on land, with relatively wide water areas and slow commutation. They are not only an important part of global water resources, but also important land resources. They can regulate river runoff, develop irrigation, and provide industry and drinking water. Various functions, such as the water source, the reproduction of aquatic organisms, the communication and shipping, the improvement of the regional ecological environment and the development of minerals, play an important role in the development of the national economy. Lakes and their basins are important places for human survival. The lakes themselves are sensitive to global chan...

AI Technical Summary

Problems solved by technology

[0005] The first is the method of inserting markers: inserting markers such as bamboo poles that can be exposed to the water surface at the underwater measuring instrument to directly indicate the position of the underwater measuring instrument. Its advantage is that it is simple and easy, and its disadvantage is that it can only be used for Shallow water and soft bottom areas, and poor reliability, easy to lose, such as being often damaged by fishermen or passing ships and blown down by wind and waves to fail

[0006] The second is the tethered buoy method, in which a floating ball that can float to the water surface is attached to the underwater measuring instrument to indicate its position underwater. It will drive the underwater measuring instrument to move with the movement of waves, waves or currents and affect the underwater measurement, resulting in invalid measurement data

[0008] (1) The submersible and retrievable buoy (Patent No. CN1258256) is mainly suitable for shallow seas. Its disadvantage is that the release structure is complicated, resulting in poor reliability and inconvenient use. When working underwater, it is directly connected to the underwater measuring instrument, which will have a greater impact on the underwater measurement, just like the tethered buoy method

[0009] (2) The device for salvaging and recovering underwater objects (patent number CN201235915), using inflated high-pressure gas cylinders, the entire release device is large in size, inconvenient to use and used in shallow water areas, and there are potential safety hazards when using high-pressure gas cylinders

[0010] (3) Underwater salvage and recovery device (patent number CN201686000), using explosive bolts for release, which can only be used once and the cost of explosive bolts is expensive. At the same time, the explosion fragments will affect the surrounding water and environment, and may even damage the measuring instruments

[0011] (4) The deep-sea timing release device (patent number CN201864030), its transmission structure is complicated, and it is easy to cause malfunction due to external force, and the magnetic field generated by the magnet used will affect the normal operation of the timing device, resulting in the timing accuracy cannot be guaranteed

[0012] It can be seen from the above that the methods or devices commonly used for the salvage and recovery of underwater objects are not suitable for the salvage and recovery of instruments used for underwater measurement in lakes or shallow seas.

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