Stratified sampling device for water at any depth

Abstract

The invention relates to a stratified sampling device for a water body at any depth. The stratified sampling device effectively solves the problem that multiple layers of water samples at any depth cannot be taken at a time. According to the technical scheme, the device comprises a vertical plate, a plurality of water collecting tanks are fixed to the front side face of the vertical plate, pistonsare installed in the water collecting tanks, and vertically-through through grooves are formed in piston rods; a first shifting rod is hinged to the left end face of the water collecting tank, a groove is formed in the piston rod, a guide rod is installed on the left side of each vertical plate, and a compression spring enabling the guide rod to reset downwards is installed at the lower end of each guide rod; a plurality of protruding blocks are mounted on the guide rods; the distance between the protruding blocks and the piston rods is sequentially reduced from top to bottom. The upper endsof the guide rods are connected with ropes, and a plurality of buoys of which the positions can be randomly adjusted are arranged on the ropes; by moving the position of each buoy, the submerging depth is adjusted, the water collecting depth of each water collecting tank can be freely adjusted, meanwhile, sampling is accurate, and samples cannot be polluted.

Description

technical field [0001] The invention relates to the field of water resources, in particular to a layered sampling device for water bodies at any depth. Background technique [0002] At present, when conducting research and analysis on deep water, it is necessary to use a sampler for sampling. Existing samplers can only take water samples of one depth at a time when sampling, and the operation is relatively cumbersome; some samplers use water pressure at different depths to control the opening and closing of sampling bottles, but the sensitivity of water pressure operation is not enough , the depth error is relatively large; in addition, the relationship between gravity and buoyancy is used for sampling, but it is often an arithmetic depth sampling, which cannot achieve sampling at any depth, which brings inconvenience to the actual sampling work. Of course, there are still some electronically controlled methods such as sensors and remote lights for sampling. On the one hand...

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Problems solved by technology

[0003] In view of the above situation, in order to solve the problems existing in the prior art, the purpose of the present invention is to provide a layered sampling device for water bodies at any depth, which can effectively solve the problem that it is impossible to take multiple layers of water samples at any depth at one time.

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