SU1555640A1 - Device for taking samples of bottom ground - Google Patents

Abstract

The invention relates to devices for sampling, in particular for sampling of bottom soil, and can be applied in geotechnical and geological exploration at the bottom of reservoirs. The purpose of the invention is to improve the convenience of operation and safety. The device comprises a carrier frame with guides, a movable traverse, a core tube and a vibratory pile driver. The supporting frame is provided with rotary legs, made in the form of hydraulic cylinders, with a piston cavity connected to the surrounding environment. The guide is provided with a spring-loaded latch, and the column tube is supported by a base plate, the traverse is kinematically connected to the legs, and the latch with a traverse is installed with the possibility of alternate interaction with the base plate of the core pipe. 1 hp f-ly, 2 ill.

Description

The invention relates to devices for sampling, in particular for sampling of bottom soil, and can be used in geotechnical and geological exploration at the bottom of reservoirs.

The purpose of the invention is to improve the convenience of operation and safety.

FIG. 1 shows the installation before descending to the bottom, general view; in fig. 2 - the same at the moment of descent to the bottom.

The device consists of a carrier frame 1 with guides 2, on which a column tube 3 with a vibratory driver 4 is fixed. On the carrier frame 1 by means of hinges 5 are mounted

Kid legs 6, which are in a vertical position, interact with locking elements 7, made in the form of spring-loaded floats 8. Folding legs 6 are connected by a flexible link 9 with a movable cross member 10 located in the upper part of the guides 2. Guides 2, below the traverse 10, spring-loaded latches 11 are installed, the latter and the traverse 10 being installed with the possibility of alternating interaction with the support plate 12 of the core pipe 3. The paws 6 are made in the form of hydraulic cylinders, which have over-piston cavities 13 communicate with the environment through channels 14, and the sliding part of the 15 legs

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The device works as follows.

The device on the deck of the ship is in the position indicated in FIG. 1. In this case, the paws 6 are in a vertical position and are kept from turning around the hinges 5 by the locking elements 7, which, under the action of the spring and its own weight, are in the lowest position. Retractable parts of the 15 legs as much as possible pushed under the action of the weight of the installation. The support plate 12 of the core tube 3, mounted on the vibrator pitch K, is located below the latch 11. The cross member 10 is in the lower position, and the flexible threads are weakened. When the device is lowered into the water, the carrier frame 1 with the guides 2 and the legs 6 hangs on the latches 11. After the device is transferred through the bulwarks, it is passed so that the spring-loaded floats 8 are buried in the water. Under the effect of pushing force, they compress the springs, unplug the paws 6. Then release the latches 11. The base plate 12 interacts with the cross member 10 and, pulling the flexible connections 9, opens the paws 6. Under the action of the hydrostatic pressure of the water entering the supra piston cavity 13 through the channels I, parts of the 15 legs are advanced, increasing the bearing surface and, consequently, the stability of the installation. In the position shown in FIG. 2, the device is placed on the bottom, the vibrator head A is turned on and a sample is taken. In the selection process, the plate 12 is lowered below the latches 11, the yoke 10 is lowered, and the flexible connections are relaxed. When lifting the device, the paws 6, turning around in the hinges 5, occupy an upright position. Pos

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When the springs are removed from the water, the locking elements 7 are returned to the lower position, the stopper of the paw 6 from turning. Retractable parts of the 15 legs return to their original position, for example, under the action of the weight of the device when placing it on the working platform, while reducing the dimensions of the device.

The application of the proposed device will increase the convenience of operation by reducing the transverse dimensions of the supporting frame, which will allow for more efficient use of the working area of the vessel and increase the safety of operations when the vessel is rough and rolling.

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formula of invention

Claims (2)

1. A device for sampling of bottom soil, including a carrier frame with guides, a traverse, a core tube, a vibratory driver and a cargo cable, characterized in that, in order to improve operating convenience and operational safety, it is provided with supporting legs mounted on a carrier frame with the possibility of rotation and fixation in a vertical position; the column tube is provided with a support plate placed in its upper part, the traverse is mounted on the guides with the possibility of vertical movement and is kinematically connected to porous legs, and the guides are provided with spring-loaded latches, the spring-loaded latches and the traverse being installed with the possibility of sequential interaction with the support plate of the core pipe. f 2. The device is pop.1, which differs from the fact that the support legs are made in the form of hydraulic cylinders, the supra-piston cavities of which are communicated with the external environment. go 9 ship 1