SU588483A1 - Sampler - Google Patents

Description

(54) SAMPLIFIER

one

The invention relates to the design of devices for sampling solid materials and, in particular, can be used for sampling soil from wells.

A sampler for collecting soil samples is known, which includes a housing, scrapers, a sampling receiver and a drive for scrapers 1. But it is designed to receive only one soil sample and if several samples are taken in a known sampler, it is necessary to repeat the sampling operations many times. It is not possible to use it in watered soils, since in this case it is necessary to use casing.

A sampler is also known, which includes a housing with a chamber and windows made therein, a conveyor belt and a tape drive; a mechanism 2. A disadvantage of the known sampler is the difficulty of extracting samples due to the in-separability of the housing.

In order to improve the process of sampling soil from wells, the conveyor belt is made with eyelets with oval windows, and the casing is made with a longitudinal groove in which the conveyor belt is placed.

FIG. 1 shows a general view of the sampler with a partial section before sampling; in fig. 2 is a longitudinal section of the sampler during the sampling period.

The sampler includes a housing 1 with a chamber 2 and windows 3 made therein, a conveyor belt 4 and a tape drive mechanism 5. The conveyor belt 4 is made with lugs 6 and oval windows 7, and the case 1 has a longitudinal groove 8 in which the conveyor belt 4 is placed The housing 1 is provided with a conical tip 9 and a longitudinal lid 10. Conveyor belt

4 by the upper end through the lugs 6 is connected to the spring 11, and by the lower end, the passage through the rollers 12 is connected to the tape drive mechanism 5. The chamber 2 is divided into sections using partitions 13 and 14, welded to

housing 1. In the lower part of housing 1, there is a window 15 for accommodating the tape-making mechanism 5.

The sampler works as follows.

Using a surface vibro-hammer or vibrator, the sampler is immersed. During the immersion process, the spring II is in the compressed position; window

3 of the housing 1 is covered with flat sections of the tape 4, it is located between its windows 7, the outer lever of the tape drive mechanism 5 occupies the upper extreme position.

The first section of the sampler builds up a second section, which then; immersed in the ground, etc.

After the end of the immersion, the entire sampler rises up by an amount equal to the length of the oval window 7 in the belt 4. At the same time, the external lever of the tape mechanism 5 is rotated in a vertical plane to the horizontal position by the pressure of the overlying soil, the internal lever of the belt mechanism 5 and moves the tape 4 relative to the housing 1 by the length of the oval window 7. The spring 11 is stretched, the oval windows of the housing 1 and the ribbon 4 are aligned. The sampler is then secured near the wellhead to limit movement of the sampler to the downhole side of the well. The vibro hammer is turned on. Under the action of vibration, the soil through the oval windows 3 of the housing 1 and the oval windows 7 of the tape 4 fills all the sections of the sampler.

The sampler rises from the well. In this case, the outer arm of the tape

The mechanism 5 occupies the lower extreme position and with the help of an internal lever the tape 4 covers all the windows 3 of the housing 1. The longitudinal flap 10 separates from the housing 1 and the soil is sampled from the sampler sections.

Claims (2)

1. Vasiliev, A.V. Sampling of rocks during engineering geological studies, M., Nedra, 1970. 2. The patent of Germany No. 1252942, cl. 42 /, 17, 1967. scho sz