A kind of artificial tamping assisted gravity columnar sediment collector

Abstract

The invention relates to a manual ramming assisted gravity type cylindrical sediment collector. The manual ramming assisted gravity type cylindrical sediment collector comprises a blocking mechanism, a counterweight ramming mechanism and a collecting mechanism, the blocking mechanism comprises a sealing plug sleeve, a sealing plug and a pull bar sleeve, the collecting mechanism comprises a collecting tube connected to the bottom of the sealing plug sleeve, the counterweight ramming mechanism comprises a counterweight block movably sleeved outside the pull bar sleeve and positioned between a blocking triggering device and the seal plug sleeve, and the counterweight block comprises a lower portion for ramming the sealing plug sleeve and an upper portion for triggering the blocking device to decrease the seal plug. In the invention, the lower portion of the counterweight block is used to assist the ramming of the sealing plug sleeve to make the collecting tube have an ideal penetration depth in the sediment, so the constant depth collection is realized; the upper portion of the counterweight block is used to trigger the blocking device, and the sealing plug is used to block a channel between a water outlet and the collecting tube, so the manual sealing of the collecting tube is realized, and the falling of the sediment in the rising process of the collecting tube is prevented; and the collector has the advantages of convenient operation, strong operation stability and high collection success rate. The collector can be used for sampling water sediments.

Description

Technical field [0001] The invention relates to a water body sediment sampler, in particular to an artificial ramming assisted gravity columnar sediment collector. Background technique [0002] The gravity-type columnar sediment sampler is currently a sampling instrument commonly used to collect lake or ocean columnar sediments at home and abroad. However, the previous gravity-type columnar sediment sampler only relied on the gravity of its own weight to collect, and it was difficult to collect more depth. Large sediments, and the depth of their collection is often very random and not stable enough, requiring repeated collection for many times, which brings inconvenience to collection. [0003] At the same time, in order to automatically lock the sampling nozzle and prevent the sediment from falling off during the ascent of the sampler, the sampler generally needs to use a locking device. In the past, the locking device mainly locked the sampling nozzle automatically after the loc...

AI Technical Summary

Problems solved by technology

But this kind of locking device needs to be very careful to prevent the lock arm from accidentally detaching, and the lock arm may also be naturally detached when the sampler falls under the action of water flow, and the sampling tube is closed in advance, resulting in unstable use. Need staff to repeat multiple collections, thus reducing the efficiency of sampling work

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