Non-disturbance bottom sealing device for oceanic box type sampler

Abstract

The invention provides a non-disturbance bottom sealing device for an oceanic box type sampler, and relates to the technical field of deep ocean sampling. The non-disturbance bottom sealing device comprises a box body, two slide slots, two slide rods, two guide slots and two symmetrical square seals, wherein the bottom surface of the box body is provided with an opening; the two slide slots are respectively positioned in opposite two side surfaces of the box body; the slide slots are perpendicular to the top of the box body and are parallel to each other; the two slide rods are respectively positioned in two side surfaces of the box body on which the two slide slots are located; the slide rods are connected with a drive device which can drive the slide rods to move up and down along the slide slots; the two guide slots are arranged in another two side surfaces of the box body, the two guide slots are positioned on the same plane and are parallel to each other; the two symmetrical square seals are positioned on the inner part of the box body, are respectively connected to the tail ends of the two slide rods, and can slide along the two guide slots until the opening is sealed. According to the non-disturbance bottom sealing device, a hanger rope is connected to the drive device, and the hanger rope is pulled upwards for downwards sliding the slide rods through the drive device to drive the seals to downwards slide along the guide slots until the bottom opening of the box body is sealed; and water flow on the bottom of the box body is uniform in stress, so that the non-disturbance sampling effect is achieved.

Description

technical field [0001] The invention relates to the technical field of deep sea sampling, in particular to a non-disturbance bottom sealing device for an ocean box sampler. Background technique [0002] The marine box sampler is an effective means of seabed sediment sampling. The sample obtained by the box sampler is preferably complete, so as to provide a good condition for the accuracy of scientific research and detection of the sample. Among them, the undisturbed sampling technology is The essential. At present, there is a lack of undisturbed sealing devices suitable for ocean box samplers. For example, the sampling scheme of Chinese patent CN203949805 is to use the overall gravity of the sealing shovel to freely fall back to the sealing place to complete the sealing action, but the momentum at the moment the shovel falls back will be The integrity of the sampling is destroyed, and the effect of undisturbed sealing sampling cannot be achieved. Contents of the invention...

AI Technical Summary

Problems solved by technology

At present, there is a lack of disturbance-free sealing devices suitable for marine box samplers. For example, the sampling scheme of Chinese patent CN203949805 uses the overall gravity of the sealing shovel to freely fall back to the sealing place to complete the sealing action, but the momentum of the moment the shovel falls back will be Destroy the integrity of the sampling, unable to achieve the effect of undisturbed sealing sampling

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