Marine-water quality sampling device

Abstract

The invention discloses a marine-water quality sampling device. The marine-water quality sampling device comprises a waterproof hood, a first motor, a first steel rope disc, a first steel rope, a second motor, a second steel rope disc, a second steel rope, a rotary-wheel sensor, a storage battery, an installing plate, vertical columns, a third motor, a fixed pulley, a pulling rope, a bottom plate,a first rotary shaft, a moving plate, a sampling box, a lifting frame, sampling bottles, a clamping plate, a piston, floating balls, motor hoods, a fourth motor, second rotary shafts and blades. Themarine-water sampling device disclosed by the invention has the beneficial effects that rubber pads are respectively arranged between the waterproof hood and the installing plate and between the motorhoods and the bottom plate, so that the connecting positions are closer; the rotary-wheel sensor is attached under the first steel rope and is connected with the first steel rope in a rolling manner,so that a sampling person can master the depth of the sampling box extending into the water level in time; pistons on the sampling bottles are connected by loose connecting ropes, and the diameter ofeach floating ball in the sampling bottle is larger than that of each bottleneck, so that collected water samples can be prevented from flowing out of the sampling bottles.

Description

technical field [0001] The invention relates to a sampling device, in particular to a marine water quality sampling device, belonging to the technical field of water environment monitoring devices. Background technique [0002] The ocean accounts for 71% of the earth's surface area, and the ocean is rich in biological resources and mineral resources. At the same time, the ocean plays an extremely important role in the ecological balance of the entire earth. Today, with the global terrestrial resources becoming increasingly tense and the environment deteriorating, countries all over the world are turning their attention to the sea. The three-dimensional monitoring and information service of the marine environment can improve the monitoring and early warning capabilities of the disastrous marine environment, and improve the operational environment protection capabilities of offshore projects. Through the monitoring of marine environmental elements, the types, quantities and co...

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Problems solved by technology

[0003] However, the current seawater sampling device is inconvenient to operate. First, remote control sampling cannot be performed, and the reflection of light on the sea surface is serious. Sampling personnel stay on the sea for a long time, which will cause a certain burden on the body. Second, it requires multiple people to coordinate work , and the sampling repeatability is high, the sampling synchronization of each layer of the water body is small, the disturbance to the water body is large, it is difficult to collect in-situ water samples, or the sampler is not automatic enough to fully meet the needs of synchronous and efficient sampling of water layers. Third, after sampling, it needs to be imported into the sampling bottle, which reduces the sampling efficiency and is not easy to carry

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