SU1536238A1 - Device for taking samples of ground - Google Patents

Abstract

The invention relates to a technique for sampling soil from an aircraft and improves the reliability and reliability of sampling operations. The device includes a body (K) 1 of the submersible, installed in the cavity K 1 with the possibility of translational movement of the piston (P) 2 with the rod 3, the flexible link (GB) 5, connecting the submersible with the aircraft (VS) in the working position 6. Submersible drive are weights (G) 11 discharged from BC 6, made in the form of hollow cylinders with an inclined through-slot with respect to the longitudinal axis of 11. When installing the submersible on the soil surface, P 2 is placed in the lowest position in the cavity K 1, then dropped from 6 g 11 buried (immersed) in g Run K 1. At the beginning of the lifting of the grunt on board the aircraft 6 in the piston cavity 9, a vacuum is created that holds the soil sample in K 1. Then the grouser is raised on the board of the aircraft 6, removed from GZ 5 G 11, while through-slots allow you to remove 11 anywhere in GZ 5. 1 zp ff, 1 ill.

Description

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tonos installed in the cavity K 1 with the possibility of translational movement of the piston (P) 2 with the rod 3, the flexible link (HZ) 5, connecting in the working position the groundwater carrier with the aircraft (BC) B, the Groundwater drive is discharged from the Aircraft 6 ( D) 11, made in the form of hollow cylinders with an inclined through slot relative to the longitudinal axis of D 11. When installing the submersible on the surface

soil P 2 is placed in the lowest position in the cavity K 1, then dropped from the aircraft 6 G 11, buried (immersed) in the groove K 1. At the beginning of the lifting of the submersible on board the sun 6 in the piston cavity 9, a vacuum is created that holds the soil sample in K 1. Then the groundwater carrier is raised aboard VS 6,

they are removed from the GB 5 G 11, while the through slots make it possible to reduce G 11 anywhere on the GB 5. 1 s.p. f-ly, 1 ill.

The invention relates to devices for sampling, namely, for sampling of soil made from an aircraft.

The aim of the invention is to increase the reliability of the device in operation and simplify the installation of cylindrical weights on flexible Even.

The proposed design of the soil carrier allows it to have a range of travel of its body towards the surface of the soil with a tight rope weight with a piston rod, and the design of the load allows it to be put on the rope in any place.

The drawing shows the device in the working position.

The device for sampling the soil includes a glass-like submersible housing 1, in the upper part of the strip of which the piston 2 with the rod 3 is placed with the possibility of translational movement. The latter is connected with a flexible link 5 (rope) lowered from the side of the aircraft 6 through a cable lock 4 The second end of the rope interacts with a lifting mechanism — a winch installed on board the vessel (not shown).

On the piston 2 there is a sealing (rubber) ring 7 separating the body cavity into the rod 8 and piston 9 cavities, the rod cavity being in communication with the environment by the radial channels 10. The device also includes cylindrical weights 11, which are made on the wall inclined through the slot 12 to the longitudinal axis.

The device works as follows.

Aircraft 6 hangs over the area from which it is necessary to take

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the soil sample, and the subsequent winch with the rope from the vessel, the ground drops until the contact of its hull 1 with the soil surface. But then the rope continues to lower the appearance of weakness in it, after which the rope slack is chosen. Thus, the piston 2 is installed in the lowest position with the formation of the minimum volume of the piston cavity 9 and the maximum volume of the rod end 8,

Onboard the vessel 6, the load 11 is put on the rope through the slot 12 and is dropped on the body 1, which is buried in the ground under the impact of the cargo, while due to the presence of channels 10 in the rod cavity 8, there is no excessive air pressure that prevents the free movement of the body 1 relative to the piston 2. The length of the housing 1 is selected in such a way that after the maximum possible penetration into the ground between the piston 2 and the upper end of the housing there always remains a rod cavity 8, i.e. There is always a stroke reserve of the piston 2 relative to the body 1.

At the beginning of the lifting of the submersible on board the vessel, the piston 2 moves upwards relative to the hull 1 and a vacuum is created in cavity 9, which in most cases holds the soil sample in the lower cavity of the submersible without the presence of a special soil-holding unit.

Claims (2)

1. A soil sampling device, jra, including a submersible, associated flexible link with the aircraft, and grounder drive in the form of shreds loads discharged along the flexible link, characterized in that, in order to increase the reliability of the device in operation, the flexible link is equipped with a plumb, made in the form of a piston rod with a piston located in the upper cavity of the primer with the possibility of translational movement, with the upper part of the cavity The submersible is made with radial channels for communication with the environment. 2. The device according to claim 1, characterized in that, in order to simplify the installation of cylindrical weights on the flexible link, the wall of each of the weights is made with a through-slit inclined relative to its longitudinal axis.