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A columnar sediment gravity sampler for deep sea cableless sampling and its application

A sampler and sediment technology, applied in the field of cableless submarine sediment layer sampler and submarine sediment layer sampler, can solve the problems of ultra-deep sea sampling technology hindering deep-sea geological and life science research, etc., to reduce the risk of loss and stabilize Strong, low-cost effect

Active Publication Date: 2019-06-21
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The shortage of ultra-deep-sea sampling technology has seriously hindered the study of deep-sea geology and life sciences

Method used

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  • A columnar sediment gravity sampler for deep sea cableless sampling and its application
  • A columnar sediment gravity sampler for deep sea cableless sampling and its application
  • A columnar sediment gravity sampler for deep sea cableless sampling and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A cableless gravity sampler substantially comprising a recovery unit and a discard unit;

[0029] Such as figure 1 As shown, the recovery unit includes a hook mechanism 1 that can be connected to the floating body and a sampler inner tube 4; the bottom of the hook mechanism 1 is fixedly connected to the top of the sampler inner tube 4; the discarding unit includes a sampler outer tube 5, a counterweight 6. Stabilizing fin 7 and trigger unlocking mechanism 8; the counterweight 6 is arranged circumferentially on the upper part of the outer wall of the sampler outer tube 5; the trigger unlocking mechanism 8 is sleeved on the sampler outer tube below the counterweight 6 5 on the outer wall; the stabilizer fin 7 is sleeved on the outer wall of the sampler outer tube 5 above the counterweight 6;

[0030] Such as figure 2 As shown, the two ends of the sampler outer tube 5 are open, the sampler inner tube 4 is sleeved in the sampler outer tube 5 and can slide axially in the ...

Embodiment 2

[0034] A cableless gravity sampler substantially comprising a recovery unit and a discard unit;

[0035] Such as figure 1 As shown, the recovery unit includes a hook mechanism 1 that can be connected to the floating body and a sampler inner tube 4; the bottom of the hook mechanism 1 is fixedly connected to the top of the sampler inner tube 4; the discarding unit includes a sampler outer tube 5, a counterweight 6. Stabilizing fin 7 and trigger unlocking mechanism 8; the counterweight 6 is arranged circumferentially on the upper part of the outer wall of the sampler outer tube 5; the trigger unlocking mechanism 8 is sleeved on the sampler outer tube below the counterweight 6 5 on the outer wall; the stabilizer fin 7 is sleeved on the outer wall of the sampler outer tube 5 above the counterweight 6;

[0036] Such as figure 2 As shown, the two ends of the sampler outer tube 5 are open, the sampler inner tube 4 is sleeved in the sampler outer tube 5 and can slide axially in the ...

Embodiment 3

[0039] A kind of cableless gravity sampler, its overall structure is identical with embodiment 1, difference is, as Figure 6 As shown, the hook mechanism 1 is composed of a release hook, an electronic timing bin 102, a watertight socket 103, a watertight cable 104 and a fusible cable 105; the release hook includes a fixed piece 1011 and a rotating piece 1012, and the described The top of the sampling inner tube 4 is fixedly connected to the bottom of the electronic timing bin 102, and the top of the electronic timing bin 102 is fixedly connected to the bottom of the fixed piece 1011; one end of the rotating piece 1012 is hinged on the top of the fixed piece 1011, and the other end can be The hinge point is that the shaft rotates to open the hook; the hook mechanism 1 is also provided with a blocking lever 1013 that can prevent the opening of the rotating piece; The hook cannot be turned and opened; the electronic timing compartment 102 is provided with a mechanical timing dev...

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Abstract

The invention provides a cableless gravity sampler, comprising a recovery unit and a discarding unit, wherein the recovery unit comprises a hook connected with a floating body, and an inner pipe of the sampler; the hook is connected with the bottom of the floating body and the top of the inner pipe of the sampler; the discarding unit comprises an outer pipe of the sampler, a balancing weight and a trigger unlocking mechanism; the trigger unlocking mechanism is in sleeve connection with the outer wall of the outer pipe of the sampler under the balancing weight; the outer pipe of the sampler sleeves the inner pipe of the sampler, and the inner pipe of the sampler can slide along the axial direction in the outer pipe of the sampler; at least two locking through holes are evenly formed along the circumferential direction of the middle section of the wall of the outer pipe of the sampler; the outer wall of the inner pipe of the sampler is provided with a locking groove or diameter expansion locking holes; locking beads are arranged in the locking through holes and the locking groove; bead exit grooves are formed in the middle part of the inner wall of an unlocking sleeve; the bead exit grooves are positioned under the locking beads, and the distance between the upper end of the unlocking sleeve and the lower edge of the balancing weight is greater than those between the bead exit grooves and the locking beads. The cableless gravity sampler is higher in reliability and safety, and lower in cost.

Description

technical field [0001] The invention relates to a marine detection device, in particular to a seabed sediment layer sampler, in particular to a cableless seabed sediment layer sampler. Background technique [0002] Deep-sea earth and life science is currently a major international frontier scientific field, and its development is closely dependent on breakthrough innovations in deep-sea technology. Obtaining seabed sediments is one of the most common and important means in the process of deep sea research, which is of great significance to the study of geology, paleoclimate and microbial information in sediments. Throughout the history of seabed sediment research, it is not difficult to find that so far, research on seabed sediments in ultra-deep (water depth greater than 7,000 meters) sea areas such as the sea bucket abyss is very weak. There are 25 trenches in the world with a depth greater than 7,000 meters, of which 18 are in the Pacific Ocean, including the Mariana Tre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/08G01N1/10
CPCG01N1/08G01N1/10G01N2001/1012
Inventor 孙兆华林间黄健龙杨小秋曾信周璇
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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