Grabbing superficial deposit sampler
A surface sediment and sampler technology, which is applied in the field of environmental science, can solve the problems of sample falling, sampling depth is difficult to control, and the effect is not good, and achieves the effect of preventing sediment falling, easy to carry and maintain, and convenient to operate.
Inactive Publication Date: 2011-11-16
NANKAI UNIV
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Problems solved by technology
At present, the more commonly used surface sediment sampler is the clam sampler. The main characteristics and existing problems of this sampler are: 1) relying on artificial throwing and inserting the sampler into the sediment with the help of the sampler's own weight, this sampling method will It makes it difficult to control the sampling depth and has a certain degree of blindness; 2) The opening and closing of the sampler is realized by rope traction and the weight of the sampler itself. Medium sample fall back
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[0027] The present invention can be further described in detail through the following embodiments combined with the accompanying drawings, but the technical content described in this embodiment is illustrative rather than restrictive, and should not be used to limit the protection scope of the present invention.
[0028] A pick-and-grab surface sediment sampler is composed of a sampling bucket, a support system, a lifting system and an extension system;
[0029] Sampling hopper is a cavity that is made of prism 6, the fifth shaft support 14, the fifth rotating shaft 31, rotating drum 28 and pyramid, and prism 6 is cylinder-shaped and has no upper bottom and lower bottom, and the cone apex of pyramid faces downward and No bottom, the prism 6 and the pyramid have equal base number and base length, and the bottom middle position of each side wall of the prism 6 is provided with a "gate" shaped fifth shaft support 14, three pieces of the fifth shaft support 14 Plates all verticall...
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Abstract
A dig-grap type surface deposition sampler, comprised of a sampling bucket, a supporting system, a lifting system and a lengthen system; the sampling bucket is a cavity composed of a prism and a pyramid, the pyramid is formed by triangular cone flanks, the cone flanks are connected with side walls of the prism via a revolving drum, a revolving shaft and a shaft support, capable of revolving around the shaft; the supporting system is composed of a supporting rod, a bush, a first extending plate, a pressure-bearing rod and an upright rod, providing supporting effect to the sampling bucket; the lifting system is composed of a coupling rod, a lifting plate, a lifting rod, a second extending plate and a revolving rod, capable of controlling opening and closing of the sampling bucket via the supporting system, the lengthening system is composed of a lengthening bush and a lengthening lifting rod, capable of lengthening the bush and the lifting rod simultaneously which enables the sampler toadapt different water depth. This sampler has excellent performance with simple structure, convenient operation, low costs and portability and maintenance.
Description
technical field [0001] The invention relates to the sediment collection technology of rivers, lakes, reservoirs and shallow seas in the field of environmental science, in particular to a pick-and-grab surface sediment sampler. Background technique [0002] Sediment is an important part of water bodies such as rivers, lakes, reservoirs, and oceans. It can exchange materials with the overlying water body through various channels such as precipitation-dissolution, adsorption-desorption, etc. Transformation and benthic organisms play an important role, so sediment monitoring is an important part of water environmental investigation and scientific research. Sediment sample collection is a necessary prerequisite for the realization of sediment monitoring. At present, the more commonly used surface sediment sampler is the clam sampler. The main characteristics and existing problems of this sampler are: 1) relying on artificial throwing and inserting the sampler into the sediment w...
Claims
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IPC IPC(8): G01N1/12
Inventor 郝永俊祝凌燕田胜燕常春
Owner NANKAI UNIV