Novel anti-clogging sand riverbed sand sampling system

Abstract

The invention provides a novel anti-clogging sand riverbed sand sampling system, which comprises a sampling cylinder, wherein a dividing plate is arranged in the sampling cylinder along an axial direction, and divides the sampling cylinder into an upper part and a lower part; one end of the sampling cylinder is sealed; the other end of the sampling cylinder is a sampling end, and the end face is an inclined plane; sampling ports are respectively formed in the upper surface part and the lower surface part of a sampling section, and no baffle plate is arranged at the upper half part; a water outlet is formed in a position, close to a baffle plate, above the sampling cylinder; a first communication hole is formed in the sealed end of the sampling cylinder, so that the upper part and the lower part of the sampling cylinder are communicated; an inhaul fixing device is arranged at the outer side of the sampling cylinder, and bypasses a rolling wheel of a river bottom signal instrument through a first inhaul so as to be fixed with a ship through a second inhaul; the rolling wheel of the river bottom signal instrument is connected with a sensor; the sensor is connected with a heavy punch through a third inhaul; a second communication hole is formed in the dividing plate along an axial direction; the first communication hole and the second communication hole are respectively provided with a filter washer.

Description

technical field [0001] The invention relates to the field of hydrology, in particular to a novel blocked sandy river bed sand sampling system. Background technique [0002] With the promotion and popularization of automatic flow measurement system, automatic flow measurement system has played an important role in the daily work of hydrological stations. The river bed quality sampler is an instrument for collecting sediment samples at a certain depth on or below the bed surface. At present, there are three types of known sand samplers for moving sandy riverbeds: dragging type (such as dragging sand barrel), digging type (such as bucket type sampler, etc.) and drilling type (such as piston type sampler, etc.) . [0003] Such as figure 1 As shown, the traditional bucket-type sandy river bed sand sampler includes a sampling cylinder 1, and a partition plate 2 is arranged in the sampling cylinder along the axial direction, and the partition plate 2 divides the sampling cylinde...

AI Technical Summary

Problems solved by technology

[0004] Yet, because the traction applied to the guideline fixing device 8 by the guideline by the traveling ship is obliquely upward, this will cause the sampling port 4 to tilt and cannot be close to the riverbed, resulting in failure to sample normally.

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