Mud sampler

Abstract

The invention provides a mud sampler, and belongs to the field of underwater sampling equipment. The mud sampler comprises a supporting frame, counterweight devices, a driving device, a linkage mechanism and a grabbing mechanism, wherein the supporting frame is set into a quadrangular pyramid structure; connecting rods are arranged on at least four corners of the bottom of the supporting frame; the counterweight devices are connected with the connecting rods; a connecting bracket is arranged on the supporting frame; the grabbing mechanism is hinged to the connecting bracket through a rotatingshaft; the driving device can control opening or closing of the grabbing mechanism through the linkage mechanism. The supporting frame adopts the quadrangular pyramid structure, so that influence of an underwater undercurrent can be reduced; the counterweight devices are arrange at the bottom of the supporting frame, so that the weight distribution of the whole mud sampler is dispersed, the overall stability can be greatly enhanced, and the mud sampler can be guaranteed to be vertically lowered to the water bottom; the driving device can control opening or closing of the grabbing mechanism through the linkage mechanism, so that the working difficulty and the working intensity of an operator are reduced and semi-automatic mud sampling operation in a water area with certain depth is achieved.

Description

technical field [0001] The invention relates to the field of underwater sampling equipment, in particular to a mud extractor. Background technique [0002] Benthic organisms (benthos) refer to organisms that inhabit the bottom or surface of oceans or inland waters, and are an important ecological type of aquatic organisms. Therefore, the use of benthos to study water ecology has been greatly developed. [0003] At present, most of the popular mud extractors on the market rely on manual manipulation of mechanical equipment for sampling. The operation process is, firstly, rely on the winch rope or its own gravity to land on the bottom of the water, and then take samples by professionals relying on skilled operation skills. [0004] The problems that need to be solved are: [0005] 1. High requirements for manpower operation: the sampling of existing mud extractors basically relies on manpower to operate the process of putting the bucket-taking mud-rising, and the steps are c...

AI Technical Summary

Problems solved by technology

[0005] 1. High requirements for manpower operation: the sampling of existing mud extractors basically relies on manpower to operate the bucket-taking-mud-lifting process, the steps are complicated and require high requirements for operators

[0006] 2. The stability of the device is low: the general grab dredger has a simple design and structure, and is vulnerable to the impact of the underwater undercurrent, causing the device to deviate from the predetermined drop point

However, this kind of underwater robot has high precision and technical requirements, resulting in high cost, and is not suitable for practical research that is generally only at the bottom of ponds and lakes.

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