A kind of water sample collecting device and using method thereof

Abstract

A water sample collection device and a method for using the same. The invention relates to the field of hydrological measurement equipment, including a shell assembly, a lining assembly, a drag assembly and a pair of opening and closing assemblies; it is used according to the following steps: manual operation: initialization, lowering, lifting, standing still, recycling, water intake; mechanical Operation: initialization, quick lowering, turning off the drive, keeping it closed, taking in the rope, taking water, and the completion; when the present invention is used, the water sample at the specified depth will enter the bottom of the floating plate from the bottom up through the water inlet hole, and after the water sample is drawn, An independent and sealed water storage space will be formed between the floating plate, water storage bucket and counterweight; so that shallow water cannot be mixed in when the water sample collection device is going up, and it has the characteristics of accurate collection position and no shallow water mixing. The purely mechanical structure of this case also has the characteristics of exquisite structure, convenient use and good underwater stability. The invention has the characteristics of fast water sample drawing speed, high working efficiency and convenient use.

Description

technical field [0001] The invention relates to the field of hydrological measuring equipment, in particular to the improvement of the water sample collecting device. Background technique [0002] At present, when testing the water quality of rivers, lakes and other water bodies in water level survey work, it is required to sample and analyze water bodies at different locations and at different depths. Most of the existing water samples are taken on the shore. There are also samples taken in ships, which can more truly reflect the actual conditions of the water body. Generally speaking, the classification can be divided into two categories: one is through circuit control, such as a Chinese patent application titled "A Water Sample Collector" published by the National Bureau on April 3, 2013, and the application number is "20121049608.4". Invention patent; it has good operation convenience and accurate measurement position; however, it also has problems such as complex struc...

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Problems solved by technology

Generally speaking, the classification can be divided into two categories: one is through circuit control, such as a Chinese patent application titled "A Water Sample Collector" published by the National Bureau on April 3, 2013, and the application number is "20121049608.4". Invention patent; it has good operation convenience and accurate measurement position; however, it also has problems such as complex structure, high production cost and poor underwater stability; A Chinese invention patent titled "Deep Water Sample Collector" with application number "2011103838412.2" announced in Japan has a simple structure and is easy to use. The piston will be opened or closed under the action of a spring. However, due to the The water pressure will change linearly with the depth. Therefore, the piston in this case will open and close slowly and gradually during use, so that the water sample is easily mixed with shallow water, which has a certain impact on the measurement accuracy.

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