RU220836U1 - Core sampler of bottom sediments of reservoirs - Google Patents

Abstract

The utility model relates to the technique of collecting bottom sediments and soils and can be used in environmental studies to collect semi-liquid, soft and dense bottom sediments of any consistency along the vertical soil in flowing and stagnant reservoirs of small depth. Technical result: obtaining a simple device for sampling cores of bottom sediments, convenient for use in field conditions. The core sampler for bottom sediments of reservoirs includes a cylindrical body 1 with side handles 5 and a measuring scale 3 printed on the surface, a cutting narrowed edge 2 at the lower end, while the body 1 at the upper end is equipped with a removable cover 6 with an internal sealing lip 7. In addition, the body 1 is additionally equipped with a side longitudinal transparent or translucent insert 4. In addition, the cover 6 is additionally equipped with an internal source of artificial directional light, is made with an upper handle 8 and the possibility of hanging on a flexible connection 9 to the body 1. 2 ill.

Description

The utility model relates to the technique of collecting bottom sediments and soils and can be used in environmental studies to collect semi-liquid, soft and dense bottom sediments along the vertical ground in flowing and stagnant reservoirs of small depth.

A device for sampling bottom soils is known (see RU No. 2773842, class G01N 1/02, publ. 06/14/2022), consisting of handles placed on the outer surface of a cylindrical soil-receiving cup, on the inner surface of which a hollow tube with a plug is vertically fixed in the form of a cable equipped with a locking means, while the soil receiving cup is equipped with a removable cover and a rod with a piston containing a groove.

The known device is quite bulky, which makes it inconvenient to use in field conditions.

A device for sampling bottom sediments is also known according to patent RU No. 58218 (cl. G01N 1/14, published on November 10, 2006), containing a soil collection container in the form of a hollow cylinder, one end of which is equipped with a cutting edge, and the other is threaded to a cartridge - a weight in which a locking valve is installed, made in the form of a soft rubber tube, fixed at the lower end in a cartridge.

This device has a complex design, consisting of a considerable number of parts connected during assembly, which also creates inconvenience for use in field conditions. In addition, the capabilities of the device may be redundant when conducting studies of small and shallow water bodies.

The bottom sediment sampler (see RU No. 156138, class G01N 1/10, published 10/27/2015) contains a body, a piston with sealing rings, a handle and a measuring scale applied to the top of the rod, while the body is made in the form of a cylindrical glass made of tool steel with a conical profile of the outer wall, tapering from top to bottom, with a serrated cutting edge sharpened like a rip saw, two metal tubes 1.5 m long, connected to each other and the body with threaded connections and o-rings, a knob and a sealing collar located in the end part on one of the metal tubes, two parts of the rod, connected to each other and the piston by threaded connections with O-rings, and the rod is installed inside the tube.

The known analogue is difficult to manufacture, has increased weight, has low reliability in use and is intended primarily for research into deep water bodies with dense bottom sediments.

The objective of the claimed utility model is to ensure reliable operation of the device while maintaining the representativeness of the sample taken.

The technical result obtained in solving the problem is expressed in the simplification of the device for sampling cores of bottom sediments, convenient for use in field conditions for research in flowing and stagnant reservoirs of small depth.

To solve the problem, a core sampler for bottom sediments of reservoirs, including a cylindrical body with side handles and a measuring scale applied along the side surface, cutting with a narrowed edge at the lower end, is characterized in that the body at the upper end is equipped with a removable cover with an internal sealing collar. In addition, the body is additionally equipped with a side longitudinal transparent or translucent insert. In addition, the cover is additionally equipped with an internal source of artificial (electric) directional light, is made with an upper handle and can be hung on a flexible connection to the body.

A comparative analysis of the features of the claimed solution with the features of analogues indicates that the claimed solution meets the “novelty” criterion.

The set of features of the utility model provides a solution to the stated technical problem and consists in the possibility of taking samples of bottom sediments from the bottom of flowing and still water bodies, containing, among other things, plant residues, living roots, various soil impurities, in a volume sufficient to ensure the reliability of the results of quantitative and high-quality analytical control, reducing the time spent by the researcher on one sample by performing simple operations during selection, in addition, the device has a simple design containing a minimum number of parts, characterized by reliability when used in field conditions.

The claimed device is illustrated in the drawings, where figure 1 schematically shows a general view of the core sampler device with a lid, figure 2 shows a cross-sectional view of the core sampler device.

The bottom sediment core sampler includes a thin-walled cylindrical body 1 with a narrowed edge 2 at the lower end, on the side surface of which a scale 3 is applied for measuring the depth of immersion in the soil, with the beginning of the scale located on the side of edge 2. Edge 2 can additionally be made with cutting elements, for example, teeth, necessary when used, for example, in reservoirs containing plant debris, living roots, etc. In this case, if the body 1 is made of an opaque material, a ) longitudinal transparent (or translucent) insert 4 next to scale 3, allowing visual control of the power of the sample taken. The body 1 and insert 4 can be made of durable plastic, for example, polypropylene (see Fig. 1, 2).

The body 1 of the device contains auxiliary side handles 5, which make it easy to manually load the device into the soil of bottom sediments or pull out the sampler with a sample without violating the integrity of the core layers.

The housing 1 is tightly closed on the upper side with a lid 6 equipped with an internal sealing lip 7 (see Fig. 2). For ease of use, the cover 6 can additionally be made with an upper handle 8 and the possibility of hanging on a flexible connection 9 (rope, cable, chain, etc.) to the body 1. In addition, the cover 6 can be additionally equipped with a directional light source of a standard device installed in the internal cavity and including, for example, an electric light bulb with a reflector, a switch and a source of electricity (not shown in the drawings).

The core sampler for bottom sediments of reservoirs works as follows.

For experimental work, a sampling device with a body length of 1000 mm and an internal diameter of 50 mm was used. At the research site, the user, using handles 5, manually vertically immerses the body 1 of the sampler with the cover 6 removed into the soil (bottom sediments) to the required depth. To control the depth of immersion, use the scale 3 printed on the body 1 and record the power of the sample taken through the insert 4 of the body 1. In this case, the researcher, if there is a lack of natural light, can additionally use an artificial light source to illuminate the internal cavity of the housing 1, for example, an external flashlight, or a light source installed in the lid 6, for which the lid 6 with the light source is applied from the top side housing 1 and illuminate its internal cavity.

If the power of the sample being taken is sufficient, housing 1 is tightly closed with lid 6, after which the device is carefully lifted vertically upward and pulled out. In this case, by reducing the effect of atmospheric pressure on the sample inside housing 1, the selected bottom sediments remain in the device after its vertical removal from the ground. The selected core is sent for further examination, for which the sample is carefully removed from body 1 using known methods, for example, by extruding and dividing into layers of the required thickness.

The simplicity of the claimed device for sampling cores of bottom sediments of reservoirs when using the declared utility model makes it possible to simplify and speed up the processes of sampling cores from shallow water bodies, the device is light in weight and unpretentious during storage and transportation, which creates favorable conditions for use in field conditions, in addition for manufacturing devices require accessible and inexpensive materials.

Claims (3)

1. A core sampler for bottom sediments of reservoirs, including a cylindrical body with side handles, a cutting edge at the lower end and a measuring scale printed on the surface, characterized in that the body at the upper end contains a removable cover equipped with an internal sealing collar. 2. A core sampler for bottom sediments of reservoirs according to claim 1, characterized in that the body is additionally equipped with a side longitudinal transparent or translucent insert. 3. Core sampler for bottom sediments of reservoirs according to paragraphs. 1 and 2, characterized in that the lid is additionally equipped with an internal source of artificial light.