Frangible small article falling sample speed reduction device and manufacturing method thereof

Abstract

The invention discloses a fragile small article falling sample speed reduction device and a manufacturing method thereof. A line segment AB and a line segment CD double-line buffer speed reducer adopted by the invention completely avoids breakage of fragile samples, reliable and effective test data can be obtained, both the line segment AB and the line segment CD belong to fishing line structures,a fishing line exhibits good toughness and elasticity, the fishing line is also smooth and is a single core line that cannot be split, a sample can be prevented from being clamped in a buffer device,loosening is not prone to occurring after long-time use, and good elasticity is kept; by adopting the structure that the double fine lines of the line segment AB and the line segment CD are vertically designed, the uncertainty problem of the change of the movement direction of the sample after the first deceleration is effectively controlled, and the reliable falling of the sample is fully ensured; a silica gel hose is adopted, so that the fishing line is prevented from leaking, effective protection of the sample in the whole process is further ensured, and meanwhile, a plastic tube slightlyshrinks at the tube opening, so that the falling sample of the sample can be ensured to be in a test area and a central position.

Description

technical field [0001] The present invention relates to the relevant technical field of the sample automatic sampling system used for environmental monitoring, sanitation disease control, nuclear power and military automatic thermoluminescence readout equipment, in particular, relates to a sample drop deceleration device for fragile small items and its production method. Background technique [0002] Automatic thermoluminescence readout equipment is mainly used in personal radiation dose equivalent monitoring in departments such as the environment, health and disease control, nuclear power and the military. A common test sample is a square piece with a diameter of 4.5 mm and a thickness of 0.8 mm or a side length of 4.5 mm. At present, the analysis of the sample is generally completed by manual operation. The operator holds the tweezers to clamp the sample and gently puts it into the heating tray. At present, there is no fully automatic sampling device. The existing auxili...

AI Technical Summary

Problems solved by technology

At present, the analysis of the sample is generally completed by manual operation. The operator holds the tweezers to clamp the sample and gently puts it into the heating tray. There is no fully automatic sampling device at present.

The existing auxiliary sample drop device directly adopts an aluminum tube with an outer diameter of 10 mm and an inner diameter of 8 mm. The sample to be measured generally passes through an aluminum tube with an outer diameter of 10 mm and an inner diameter of 8 mm from a sample plate with a height of 320 mm. The tube falls vertically onto the heating plate for heating measurement. At this time, the test sample falls directly into the heating area without being decelerated. Since the test sample is made of fine powder pressed through a mold, it is subjected to external force or free fall During the process, the sample is directly dropped to the heating plate. During this process, the sample is particularly easy to break, smash, or the structure is loose and cannot conduct heat well, so the temperature cannot reach the actual release temperature. As a result, the experimental error is very large and even the experimental data Seriously deviate from the real results, so it is necessary to decelerate the dropped samples in the later stage of the sample drop process, and further ensure that the samples are intact and unbroken after falling into the measurement area and placed flat

[0003] For the problems in related technologies, no effective solutions have been proposed yet

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