Portable tidal flat geological sampler
A sampler and portable technology, which is applied in the field of portable tidal flat geological sampler and sampling device, can solve the problems of failure, unsuitable tidal flat manual carrying, operation sampling, and easy failure sampling of metal petals, so as to save sampling cost and shorten sampling time Effect
Inactive Publication Date: 2018-01-05
THE FIRST INST OF OCEANOGRAPHY SOA
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Problems solved by technology
[0003] The present invention aims to solve the problem that the existing marine sampler is complex and bulky in structure, unsuitable for manual portability and operation of sampling in tidal flats, the metal petals are prone to failure and sampling failure, and the suction force formed between the piston and sampling is difficult to adjust, resulting in the obtained samples Deformation and stretching, when the sample tube is lifted, a negative pressure is formed under the knife edge of the sampling point to generate resistance, and a portable tidal flat geological sampler with a simple structure, easy to operate, and reliable work is provided
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Embodiment Construction
[0019] What is shown in the accompanying drawings is an embodiment of the present invention.
[0020] The spring petal 2 of the present embodiment is composed of a hollow cylinder and a petal elastic sheet. The petal elastic sheet is made of 0.2mm H62 brass skin. The upper part of the brass skin is made of eight approximately triangular petals at even intervals. The brass skin is rolled into a cylinder, and the lower part is set in a stainless steel hollow cylinder. riveted. The sample storage liner 3 of the present embodiment is made of PVC plastic sewer pipe material. The upper and lower ends of the four stainless steel sampler guards 4 are respectively welded on the top guard 5 and the knife edge 1, and are evenly arranged. The bottom plate of the sampler guard 4 is lath-shaped, and a stainless steel tube is welded on the bottom plate along the length direction. 8. The lower opening of the hollow pipe of the stainless steel pipe 8 is at the knife edge 1, and the upper ope...
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The utility model relates to a portable tidal flat geological sampler belonging to a sampling device in the field of geological surveying and testing, and is used for geological sampling of tidal flats. The present invention adopts the protective frame of the sampler to fixedly connect the knife edge and the top guard. The lower opening of the hollow pipe of the sampler protective frame is at the knife edge, and the upper opening is exposed above the ground. The top is opposite, and the hollow cylinder is respectively sealed with the sample storage liner and the knife-edge detachable seal. The upper end of the sample storage liner is in the inner hole of the top protection. The knife-edge technical solution solves the problem that the existing ocean sampler has a complex and bulky structure, which is not suitable for manual portability and sampling in tidal flats. The opening and closing of the metal petals is easy to fail, and the suction force formed by the piston is difficult to adjust, which makes the sample deformed and stretched. The technical problem that negative pressure is formed below the knife edge to generate resistance during the device.
Description
technical field [0001] The invention belongs to a sampling device in the field of geological surveying and testing, in particular to a portable tidal flat geological sampler. Background technique [0002] There are not many geological samplers dedicated to tidal flats. In view of the particularity of waters such as rivers, lakes and seas, the geological samplers used in waters for geological sampling in tidal flats have the disadvantages of being bulky, complex in structure, poor in sampling effect, or even unusable. Chinese utility model patent, authorized announcement number CN2360587Y "Long Rock Core Gravity Piston Sampler" discloses a fully-enclosed nozzle seal with a combination of a sample tube, a release system, a lifting tube weight, a tail rudder, and a knife edge, and a belt with adjustable pressure. A marine sediment long core sampler composed of a pressure limiting valve ball valve piston. The sampler is usually released and collected by a shipboard winch. When ...
Claims
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IPC IPC(8): G01N1/08
Inventor 任军李平丰爱平杜军
Owner THE FIRST INST OF OCEANOGRAPHY SOA