Manual-depth-setting water sampling device

Abstract

The invention discloses a manual-depth-setting water sampling device. The manual-depth-setting water sampling device comprises an inner cylinder and an outer cylinder, wherein the inner cylinder is arranged at the center of the outer cylinder, the lower portion of the inner cylinder is fixedly connected with the bottom of the outer cylinder, a cylinder cover is arranged on the outer cylinder, the right end of the cylinder cover is rotationally connected with the outer cylinder through a torsional spring, a threading hole is formed in each of the left side and the right side of the outer cylinder, a switch is arranged on the upper portion of the inner cylinder, a horizontal shaft is arranged in the switch, two ends of the horizontal shaft are fixedly connected with the inner wall of the inner cylinder, the switch is rotationally connected with the horizontal shaft, a floating block is arranged in the inner cylinder and below the horizontal shaft, the inner cylinder is provided with through holes, a base is mounted below the outer cylinder, and a counter weight is mounted in the base. The manual-depth-setting water sampling device has the advantages that the device is reasonable in structural design, convenient to use, and the like; meanwhile, after the device is filled with water, the cylinder cover can automatically close, water does not spill during lifting, and work efficiency is increased.

Description

technical field [0001] The invention belongs to the technical field of water sample collection devices, in particular to a manual depth-fixed water sample collection device. Background technique [0002] In the hydrogeological survey work, in order to find out the hydraulic connection of each aquifer and the current situation of the groundwater environment, it is necessary to sample the specified aquifer at a fixed depth. Generally, groundwater samples are collected through hydrogeological boreholes. There are many ways to collect water, such as pump water, electric control water, vacuum suction, etc. However, the above methods have problems such as high cost, inconvenient to carry, difficult to repair in time, and not suitable for mountainous areas. Moreover, the traditional water sample collection device does not have an automatic sealing function after it is filled with water. Due to the inevitable shaking during the lifting process, there is often only a small amount of...

AI Technical Summary

Problems solved by technology

However, the above methods have problems such as high cost, inconvenient to carry, difficult to repair in time, and not suitable for mountainous areas.

Moreover, the traditional water sample collection device does not have an automatic sealing function after it is filled with water. Due to the inevitable shaking during the lifting process, there is often only a small amount of water in the cylinder after it is raised, and repeated collection is required.

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