| abstract |
The utility model provides an underwater in-situ water sample collecting device which can overcome the defects that in-situ water sample in middle and bottom layers can not be collected and a sampling bottom lid can not be opened in the prior art. The technical scheme adopted by the utility model is as follows: according to the underwater in-situ water sample collecting device, a mobile base is mounted above a bottom plate; a water collecting container is arranged on the mobile base; an electronic control valve is fixed on an upper plate; during water sample collecting, the mobile base is moved upwards, so that a sealing element at one end of the outlet pipe of the electronic control valve is sealed with the circumferential surface at the top of the water colleting container all the time, and outlet pipe of the electronic control valve is communicated with the water colleting container. The underwater in-situ water sample collecting device has the advantages that the operation is simple and reliable, the depth control is accurate, the operations of opening and closing the electronic control valve are reliable, and the in-situ water sample collecting state is prevented form being interfered by upper and lower water bodies. The underwater in-situ water sample collecting device is suitable for in-situ water sample collecting for oil pollution analysis and bioanalysis. |