RU2773842C1 - Bottom soil sampling device - Google Patents

Abstract

FIELD: sampling systems.

SUBSTANCE: invention relates to devices for the sampling bottom soils. A device for sampling bottom soils is described, consisting of handles placed on the outer surface of a cylindrical ground receiving cup, on the inner surface of which a hollow tube with a plug in the form of a cable is vertically fixed, equipped with a fixing agent, and the ground receiving cup is equipped with a removable lid and a rod with a piston containing a groove.

EFFECT: ability to carry out the rotational movement of the cup necessary for its deepening.

1 cl, 3 dwg

Description

The present invention relates to bottom soil sampling devices and can be used in environmental studies to collect bottom sediments of any consistency along the soil vertical, undisturbed layer structure in flowing and stagnant water bodies,

A similar sampling device is known containing a housing, a piston with sealing rings, a handle and a measuring scale applied to the upper part of the rod, a housing made in the form of a cylindrical cup made of tool steel with a conical profile of the outer wall, tapering from top to bottom, having a serrated cutting edge, sharpened according to the type of a longitudinal saw, two metal tubes 1.5 m long, connected to each other and the body by threaded connections and sealing rings, a collar 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 a threaded piston connections with sealing rings, and the stem is installed inside the tube. (see utility model RU 156138 IPC G01N 1/10 published on October 27, 2015).

The disadvantage of the analog is that during the extraction of the soil sample under the soil-receiving cup, a rarefaction occurs that violates the natural structure of the soil - it sucks moisture, stretches the sample, often pulls the sample out of the cup until the device is removed, reducing the percentage of sample output during their selection. In addition, when removing the device from the well, additional power is expended to overcome the force caused by rarefaction.

A similar hand-held device for taking several samples of an undisturbed structure and a constant volume along the depth of the soil is known, containing a sampling cup mounted on a hollow rod with a handle, and a piston with a rod inside the rod, equipped with an indicator of penetration into the soil of the sampling cup and a conductor made in the form of a plate, passing into a funnel with an opening enclosing the well, and the piston rod - with a holder in the upper part and a valve for closing in the extreme upper position of the rod of the cross section of the rod cavity from the side of the sampling cup, which is barrel-shaped from the outside, having between round end sections (see USSR author's certificate No. 1328719 IPC G01N 1/04 published 08/07/1987 Bulletin No. 29)

The disadvantage of the analog is that during the extraction of the soil sample under the soil-receiving cup, a rarefaction occurs that violates the natural structure of the soil - it sucks moisture, stretches the sample, often pulls the sample out of the cup until the device is removed, reducing the percentage of sample output during their selection. In addition, when removing the device from the well, additional power is expended to overcome the force caused by rarefaction.

The closest device for the same purpose to the claimed invention in terms of a set of features is a device for sampling soil, including a rod, a cylindrical dredging cup with a cover and a rod with a piston, and the dredging cup contains on its outer surface a hollow tube with a plug in the form of a cable, fixed on its outer surface, (see USSR author's certificate No. 421906 IPC G01N 1/04 published on 30.03.1974 Bulletin No. 12) taken as a prototype.

The disadvantage of the prototype is that if the dredging cup is made 600-800 mm long, the tube placed on its outer surface does not allow rotational movements necessary for deepening the dredging cup.

The technical problem is to exclude a hollow tube with a plug from the outer surface of the glass while maintaining its function.

EFFECT: possibility to carry out rotational movements of the glass necessary for its deepening

The specified technical result is achieved by the fact that in a known device for sampling, bottom soils, 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 fixing means, and the soil-receiving cup is equipped with a removable cover and a rod with a piston containing a groove.

Additionally, the invention is characterized by the fact that the fixing means is made in the form of a handle in which the cable is fixed, and two segments with threaded holes are attached to the bottom of the handle, coinciding with the holes on the side surface of the soil-receiving cup, with screws placed in them.

The figure 1 shows a device for sampling bottom soils

The figure 2 shows the removable part of the device needed to extract the sample.

In figure 3, a view along A-A

The drawings show. Cylindrical dredging cup 1, the lower edge of which is made conical 2 and equipped with teeth 3, and the upper edge is equipped with handles 4. On the inner surface of the dredging cup 1, a hollow tube 5 is vertically fixed with a plug in the form of a cable 6, the upper part of which is fixed (for example, by soldering) in the hole of the liner 7, which is fixed in the hollow handle 8. From below, two segments 9 with threaded holes 10 are welded to the handle 8 coaxial with the holes in the soil-receiving cup. Thumb screws 11 are screwed into the holes 10 (the screws are not shown in figure 1). The piston 12 has rubber seals 13 held by plates 14 with screws. On the side surface of the piston 12 there is a groove 15 for a hollow tube 5. A rod 16 is welded to the piston 12, on which the cover 17 is movably placed.

Device operation

We insert cable 6 into hollow tube 5. Segments 9 are located to the left and right of the hollow tube. The threaded holes 10 will coincide with the holes on the soil-receiving cylindrical sleeve 1 (see figure 1). Then, wing screws 11 are screwed into the threaded holes. The cylindrical soil-receiving cup 1 is pressed into the soil. Since the hollow tube is located on the inner surface of the sleeve 1, it does not interfere with the rotation of the soil-receiving sleeve. Before removing the soil-receiving cylindrical cup, we unscrew the screws 11 and by the handle 8 we remove the cable 6 from the hollow tube 5. We rotate the cup 1. We tear off the soil sample from the bottom. Since the opening of the hollow tube 5 is open, when the soil-receiving cup 1 is lifted, no vacuum occurs at the place where the soil sample is torn off. We remove the entire device from the face. To extract the soil sample from the cylindrical dredging cup 1, insert the piston 12, aligning the groove 15 with the hollow tube 5. Put the cover 17 on the trough 1. Hold the entire device by the handles 4 and press on the rod 16. The soil sample is squeezed out of the dredging cup 1

We return the parts of the device to the initial position (see figure 1), Screw in the screws 11. The device is ready for taking another sample.

Thus, the above information testifies to the fulfillment of the following set of conditions when using the claimed invention:

- a tool that embodies the claimed invention in its implementation, relates to bottom soil sampling devices and can be used in environmental studies to collect bottom sediments of any consistency along the soil vertical, undisturbed layer structure in flowing and stagnant water bodies,

- for the claimed device in the form as it is described in the independent clause of the stated claims, the possibility of its implementation using the means and methods described in the application or known before the priority date is confirmed.

- a tool that embodies the claimed invention in its implementation, capable of achieving the technical result perceived by the applicant.

The advantage of the invention lies in the fact that the absence of an outer tube on the outer surface of a long cylindrical sleeve allows it to be rotated in the face. The implementation of the rod with a piston removable creates convenience when deepening, since the rod does not loom in front of the face.

Therefore, the claimed invention meets the condition of "industrial applicability".

Claims (2)

1. A device for sampling bottom soils, consisting of handles placed on the outer surface of a cylindrical dredging cup, on the inner surface of which a hollow tube is vertically fixed with a plug in the form of a cable, equipped with a locking device, and the dredging cup is equipped with a removable cover and a rod with a piston, containing a groove. 2. The sampling device according to claim. 1, characterized in that the fixing means is made in the form of a handle in which the cable is fixed, and two segments with threaded holes are attached to the bottom of the handle, coinciding with the holes on the side surface of the soil-receiving cup, with placed in them with screws.

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