Sampling tube fixing and sample ejecting device and sample ejector including same

Abstract

The invention provides a sampling tube fixing and sample ejecting device used for a rock-soil sample ejector and a rock-soil sample ejector facility using the device. The device has a liftable self-adaptive sampling tube fixing system, can perfectly fix sampling tubes of different diameters and can be cooperatively used with the sampling tubes of different diameters through replacing of ejecting discs of different specifications, and a specially designed structure of the device enables the inner wall of the sampling tube to be cleaned during usage. The sampling tube fixing and sample ejecting device provided by the invention can effectively reduce system height, is applicable to sampling tubes of different height, enables convenient, simple and fast fastening and connection to be realized, greatly improves efficiency and system suitability, is convenient to maintain and clean and eliminates potential risks in operation.

Description

technical field [0001] The invention relates to a geotechnical instrument and equipment, in particular to a sample jack accessory. Background technique [0002] In order to obtain high-quality undisturbed samples in geotechnical engineering, thin-wall samplers using seamless sample cylinders are often used. When taking the sample, press the original sample into the seamless sample cylinder. When carrying out rock and soil testing, it is necessary to use a sample jack to take out the rock and soil sample from the seamless sample cylinder. The structure and working principle of the sample ejector directly affect the quality and work efficiency of taking samples out of the sample cylinder. [0003] In the prior art, manual or electric vertical or horizontal sample ejectors are mostly used. The disadvantage of the manual sample ejector is that the operator has high labor intensity and low work efficiency; the defect of the electric sample ejector is that the mechanical wear i...

AI Technical Summary

Problems solved by technology

Existing sample ejectors generally use a turnbuckle structure to fix the sample cylinder, and the fixed parts are difficult to clean and are prone to rust; High reaction force frame, narrow operating space, difficult to handle and transport, there are also dangers of crushing and bruising during operation

There is a gap between the sample ejecting device of the existing sample ejector and the inner wall of the sample cylinder, and waste samples will remain on the inner wall of the sample cylinder after ejecting the sample, which is difficult to remove

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