SU1280463A1 - Device for sampling ground - Google Patents

Abstract

The invention relates to a device for sampling soil, can be used in geological exploration and allows to increase the reliability of operation and the quality of sampling. The device contains a kernonriem pipe 1 with a valve 2 and a tip 7. Inside the pipe there is a piston 3 with a through hole and a hollow rod 4 equipped with a valve 5 In the cavity of the rod 4 there is an elastic sleeve 6. The lower end of the latter is attached to the cutting tip of the pipe 1 and the top one is free. A ball lock 9 and a valve 8 are mounted in the piston 3. A contact pin 10 is rigidly mounted in the lower part of the pipe 1. 1 sludge. about ssu 00 "aap and

Description

one

This invention relates to soil sampling.

The purpose of the invention is to increase the reliability of work and the quality of soil samples.

The use of a stem cavity for a core tube allows obtaining a well-packed sample, since the causes of the rupture and wedging of the sleeve are eliminated, improves the sample insertion characteristics, since it is not necessary to increase the thickness to accommodate the sleeve. walls of the core tube; no additional equipment is required to hold the sleeve in the folded position.

The drawing shows the device section.

The soil sampling device consists of a core-receiver pipe 1 with a valve 2, a piston 3 with a through hole, a hollow rod 4 equipped with a valve 5, an elastic sleeve 6 placed in the cavity of the rod 4, a tip 7, a valve 8, a ball lock 9 and a contact plug 10. The lower end of the elastic sleeve 6 is attached to the cutting tip of the core-receiving pipe 1 using the tip 7, and the upper end is free. .

The device works as follows.

Before starting work, the cavity is pumped out of the cavity between the core lifter tube 1 and the stem 4 through valve 2.

Editor N.Gorvat

Compiled by V.Rusin Tehred V.Kadar

Order 7058/46 Circulation 778 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

. Production and printing company, Uzhgorod, Projecto st., 4

804632

I air to increase penetration depth.

When the bottom is touched by the contact tip 10, the ball lock 9 is activated, fixing the position of the core receiver tube 1 relative to the piston 3. The core receiver tube 1. goes down into the ground under the action of hydrostatic pressure, the piston 3 with the rod 4 remains in place, the sleeve 6 is pulled out from the cavity of the stem 4 and filled with a core. When overpressure occurs, valve 5 is activated, releases air and water from the cavity of stem 4, and closes at the end of the insertion. The valve 8 keeps the core from falling out.

The proposed design allows to increase the efficiency of work and

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core quality, as well as reduce operating costs by increasing the reliability of the device.

Claims (1)

This invention relates to soil sampling. The purpose of the invention is to increase the reliability of work and the quality of soil samples. The use of a stem cavity for a core tube allows obtaining a well-packed sample, since the causes of the rupture and wedging of the sleeve are eliminated, and it improves the insertion characteristics of the sampler, since it is not necessary to increase the thickness to accommodate the sleeve; walls of the core tube; no additional equipment is required to hold the sleeve in the folded position. The drawing shows the device section. The soil sampling device consists of a core-receiver tube with a valve 2, a piston 3 with a through hole, a hollow rod 4, fitted with a valve 5, an elastic sleeve 6 placed in the cavity of the rod 4, a tip 7, a valve 8, a ball lock 9 and a contact plug 10. The lower end of the elastic sleeve 6 is attached to the cutting tip of the core-receiving pipe 1 using the tip 7, and the upper end is free. . The device works the next time. Before starting work, air is pumped out of the cavity between the core-borne pipe 1 and the rod 4 through the valve 2 to increase the penetration depth. When the bottom is touched by the contact tip 10, the ball lock 9 is activated, fixing the position of the core receiver tube 1 relative to the piston 3. The core receiver tube 1. goes deeper into the ground under the action of hydrostatic pressure, the piston 3 with the rod 4 remains in place, the sleeve 6 is pulled out rod 4 and filled with a core. When overpressure occurs, valve 5 is activated, releases air and water from the cavity of stem 4, and closes at the end of the insertion. The valve 8 keeps the core from falling out. The proposed design allows to improve the efficiency and quality of the core, as well as reduce operating costs by increasing the reliability of the device. An invention of a soil sampling device, including a core receiver tube with a cutting tip, a piston with a rod, an elastic sleeve for receiving the core, characterized in that, in order to improve reliability and improve the quality of soil samples, the piston and rod are hollow, an elastic sleeve placed in the cavity of the stem and attached to the lower end of the cutting tip of the core tube, and the upper end of the stem is equipped with a bypass valve.