Carrying type box sampler

Abstract

The invention discloses a carrying type box sampler, which adopts a carrying type integral structure to simplify and optimize the installation and butt joint with an upper-layer host and a driving mechanism, so as to achieve the design purpose of adapting to more substrate environments and improving the sampling efficiency. The carrying type box sampler mainly comprises a box body and a set of scraper knife mechanisms, wherein the box body is provided with an upper opening and a lower opening; the scraper knife mechanisms are arranged on the side portion of the box body and used for sealing the opening at the bottom part of the box body; each scraper knife mechanism comprises a cross beam used for being upwardly connected with a driving mechanism and a vertical pull rod, the bottom end ofthe pull rod is connected with a set of pull plates by means of pivots, and the end portions of the pull plates are connected with scraper knives by means of the pivots; and the side portion of the box body is connected with upper racks, each upper rack comprises a side bracket and a guide pipe, and the pull rods vertically penetrate the guide pipes. According to the carrying type box sampler, thebox body in the middle is used for storing samples after sampling, the cross beams of the scraper knife mechanisms can be used for connecting and installing the driving mechanism, the scraper knifesare opened and closed by pulling a connecting rod by means of the driving mechanism (such as an oil cylinder) above, and the pull plates and the scraper knifes are sequentially linked by means of thepull rods, so that the scraper knifes can repeatedly open and close the opening at the bottom part of the box body in a reciprocating manner, namely the single-stroke and multi-time sampling operationis realized.

Description

technical field [0001] The invention is a novel carrying box-type sampler applied to deep-sea sediment sampling operation, which belongs to the technical field of marine observation. Background technique [0002] At present, in the field of ocean observation and research, various sampling devices are widely used to collect seabed sediment and rock samples. After sampling, conduct preliminary observations and experiments based on the material composition, structure, and structure of the samples to assist in the study of the geological distribution of the seabed. [0003] A common sampling device is a box sampler, that is, the sampling tube or sampling cylinder is in a square or rectangular box structure. When the box sampler reaches the seabed, the sampling cylinder is inserted into the seabed sediment by its own gravity, and the sediment is cut and stored in the cylinder by closing the blade to rotate. [0004] Such as the following prior patent application, application nu...

AI Technical Summary

Problems solved by technology

[0005] The existing box-type sampler as described in the above-mentioned prior application has the following disadvantages and deficiencies: 1. Although it is portable as a whole, it can only work independently and cannot carry out joint operations with other deep-sea observation platforms or equipment.

2. Relying on the mechanical trigger mechanism to complete the sampling, due to the uncertainty of the seabed environment, it is impossible to achieve controllable triggering, resulting in a low sampling rate; at the same time, the quality of the samples obtained is also difficult to control, and it is difficult to obtain ideal samples

3. The bucket of the existing box-type sampler can only be opened and closed once, that is, the trigger mechanism is used to drive the bucket to close after the self-weight touches the bottom, and it cannot be opened after closing

It is impossible to realize multiple sampling operations in a single trip, and the work efficiency and accuracy need to be further improved

4. Due to the poor sealing effect of the existing box-type sampler, it is difficult to sample liquid samples; moreover, during the process of closing the bucket, there must be a certain distance between the bucket and the box, otherwise it is easy to scratch the box , the sealing performance between the bucket and the box is low, and the sample is easy to leak

5. There are problems such as poor adaptability to the deep seabed environment, single sampling environment, small sampling capacity, and low success rate

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