RU107356U1 - SOIL Sampler - Google Patents

Abstract

 Soil sampler, consisting of a cylinder, a restrictive ring, a piston with a handle and two rotary handles, characterized in that the cylinder is made of a thin-walled stainless steel pipe with a diameter of 40-50 mm, a length of 250-300 mm and a wall thickness of 0.5-1 mm .

Description

A useful model is a soil sampler (PP) refers to the field of environmental monitoring and can be used in studies of soil pollution, namely, for sampling soil of all types except stony.

There is a device for sampling soil, which determine the physical (density) and chemical (concentration of pollutants) characteristics of the soil cover - a soil sampler-drill (Nekrasova drill), which is the prototype of this model and designed to take samples of soil, soil, bottom sediments, except clay and rocky soils. The prototype sampler is used by environmental services, geologists in everyday work, as well as for sampling various loose, crumpled chemicals. The soil-drill sampler is made of steel, and consists of a tip and a rod, which can be extended depending on the required depth of sampling. The drill is a hardened steel tip that connects to the boom using locking screws. The bar may be extended to the required length by another bar included in the kit. The rod at the end has a handle for rotating the sampler.

Specifications:

The mass of a selected single soil sample, g - about 220;

Depth of 1st sampling, mm - up to 200; Drilling depth, m - up to 2; Weight kg - 6.2; Dimensions: diameter (max.), Mm -- fifty; height (assembled), mm - 1200.

The sample is taken by rotating the sampler by the handle clockwise with simultaneous pressure. The sampler with the cutting edge directs the soil into the inner cylinder of the tip. After sampling, the drill is pulled out of the hole, the soil is poured through the slot of the tip with a knife or wooden stick into a prepared bag or container. Further, drilling and sampling of the soil continues from the subsequent depth of the same hole or at the next sampling point.

The main drawback when using the soil-drill sampler (Nekrasov drill) for soil sampling during environmental monitoring is the significant weight (6.2 kg) and dimensions, which greatly complicates the movement to the place of sampling and complicates the sampling procedure itself. The reasons for this are the design of the drill and its material, in particular.

The same reasons lead to a significant duration of one core sampling (removal of soil residues from the previous core, inconvenience when using a long handle), overweight (6.2 kg) and the dimensions of the entire device.

At the same time, for environmental monitoring tasks when sampling soil, in most cases a short, thin-walled stainless steel tube is sufficient (the required sampling depth does not exceed 0.2 m), and the main problem is the movement and delivery of the selected samples.

The objective of the proposed utility model is to increase accuracy and reduce labor costs and time of sampling the soil.

This problem is solved in that the sampler, consisting of a cylinder, rotary handles, a restrictive ring and a piston with a handle, is made of stainless steel pipe with a diameter of 40-50 mm, with a wall thickness of 0.5-1 mm and a height of 250-300 mm, while the weight of the device is less than 1 kg, and the dimensions allow it to be carried on a belt or in a large pocket.

The technical result of the proposed utility model is that:

a) soil sampling is carried out with greater accuracy due to the restrictive ring (all cores are of the same depth) and require much less effort due to the thin cylinder wall (the soil is crumpled less) and a significant reduction in the weight of the sampler;

b) the time spent by the operator on the selection of one sample is reduced due to a significantly lower need for cleaning the cylinder from the soil residue of the previous sample.

Thus, the accuracy of sampling is increased and the time spent on sampling is reduced, which, combined with a decrease in the mass of the device, significantly increases the operator’s labor productivity, especially with large volumes of work (soil survey on routes, environmental monitoring of the territory).

The proposed solution is illustrated in more detail by the attached drawing of the device, where

1 - receiving cylinder;

2 - rotary knob;

3 - a restrictive ring with lock screws;

4 - a piston with a handle;

5 - a cover of a receiving cylinder.

The receiving cylinder (1) is designed to cut the core of the soil to the required depth of the soil cover (up to 0.2 m) using the rotary knobs (2). The restrictive ring with locking screws (3) is used to adjust the depth of extraction. A piston with a handle (4) is designed to push the soil out of the cylinder. The hole in the cover of the intake cylinder (5) serves as a guide for the piston handle.

On the outside of the cylinder there is a scale for measuring the height of the core of the soil.

All parts of the sampler are made of stainless steel.

The device operates as follows.

1. On the scale applied on the outside of the cylinder, the required soil extraction depth is set using the restrictive ring and fixed with locking screws.

2. PP is installed vertically on the soil surface at the intended location.

3. PP is immersed in the soil to the required depth by pressing on the rotary knobs and, if necessary, turning slightly around its axis.

4. PP is extracted from the soil.

7. Using a piston, the sample is pushed into a plastic bag or other prepared container.

After sampling, a control inspection of the entire PP is carried out and, if necessary, its surfaces are cleaned of adhering soil.

A specific example of the device:

The cylinder body (1) is made of stainless steel 300 mm long with a diameter of 40 mm and a wall thickness of 1 mm, the cylinder end face is closed by a cover (5) - a circular disk with a hole in the center. The rotary knobs (2) are screwed into the cylinder body at the top. Inside the cylinder there is a piston (4) whose handle passes through the hole in the cylinder cover. A restrictive ring (3) with two locking screws is installed on the outside of the cylinder. All parts are made of stainless steel. The mass of the sampler is only 750 g. Sampling is carried out by vertical immersion of the cylinder in the soil to a predetermined depth.

The proposed design of the sampler improves the accuracy of determining the physical and chemical characteristics of the soil cover, facilitates and reduces the time of sampling of each sample by:

- restrictions on the depth of sampling (all core samples of exactly the same depth),

- a significant reduction in the need for cleaning the cylinder from the remains of the soil of the previous sample,

- a radical reduction in the mass and dimensions of the device (Nekrasov drill - 6.2 kg, length 1200 mm, soil sampler - 0.75 kg, length not more than 350 mm).

Claims (1)

A soil sampler consisting of a cylinder, a restrictive ring, a piston with a handle and two rotary handles, characterized in that the cylinder is made of a thin-walled stainless steel pipe with a diameter of 40-50 mm, a length of 250-300 mm and a wall thickness of 0.5-1 mm .