Multi-point and multi-depth water body sampling equipment and sampling method thereof

Abstract

The invention discloses multi-point and multi-depth water body sampling equipment and a sampling method thereof. The equipment comprises a mounting plate, first group of water sample collecting devices are arranged on the mounting block and a sliding block; a handle is fixedly arranged on a cord-winding column, one end, far away from the cord-winding column, of an extension cord is fixed on the water sample collection box; a cylinder two switch is arranged at the top of an upper convex part, a floating ball is fixedly arranged on a push rod, a filter screen is fixedly arranged in a water inlettank formed at the side convex part, a baffle plate is fixedly arranged at a top surface of an output end of the cylinder two, and a hairbrush is fixedly arranged at one side, far away from the fixedplate, of a recess plate. The invention provides the multi-point and multi-depth water body sampling equipment, and has the function of automatically opening when reaching a specified depth, automatically closing after sampling, automatically coiling the cord after closing, and automatically cleaning the attached aquatic plant and moss in the upward movement of the cord coiling. The invention further discloses a sampling method of the multi-point and multi-depth water body sampling equipment, the operation is simple, and the equipment is worthy of popularizing.

Description

technical field [0001] The invention relates to the technical field of water sampling equipment, in particular to multi-point and multi-depth water sampling equipment and a sampling method thereof. Background technique [0002] In the prior art, the application number is "201820070104.3", a multi-layer depth sampling device for water environment monitoring. Its composition includes: a cylindrical sleeve, a top cover and a bottom cover. Connection, the bottom cover is connected with the bottom of the cylindrical sleeve through the thread structure, the first sampling cylinder, the second sampling cylinder and the third sampling cylinder are arranged in the cylindrical sleeve, the top of the first sampling cylinder is fixed with a threaded sleeve, the thread The sleeve is connected with the plunger, and the top of the plunger is fixedly connected with the bottom of the rotating part. [0003] However, there are still relatively obvious defects in its use: 1. The above-mention...

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Problems solved by technology

[0003] However, there are still relatively obvious defects in its use: 1. The above-mentioned device can only collect water bodies at different depths in the same vertical direction, but the collection at only one vertical direction has a large error. Affect the representativeness of sampling; 2. The sampling cylinders in the above device are connected by connecting rods, but the length of the connecting rods cannot be adjusted, indicating that this device can only sample water bodies at a fixed depth, and the applicable conditions are extremely limited; 3. After the sampling is completed, the above-mentioned device prevents water from continuing to enter the sampling cylinder by rotating the rotary member. However, when the sampling device goes deep into the water for sampling, the operator cannot intuitively observe whether the sampling cylinder has completed sampling, even if the sampling has been completed. Closing is also relatively cumbersome; 4. When sampling the water body, there may be rotten aquatic plants and moss covering the filter screen of the sampling port in the water body. If it is not cleaned in time, it will not only affect the accuracy of sampling in the next use, but also Cause equipment fouling and reduce service life

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