CN201425558Y - Porous soil in-situ solution extractor - Google Patents

Abstract

The utility model discloses a porous soil in-situ solution extractor, which comprises a tube body and a syringe. There is an opening on the side wall of the upper end of the tube body, and a thin liquid suction tube passes through the opening on the side wall of the tube body and is inserted into the tube body. The bottom end of the thin liquid suction tube extends into the bottom of the tube body, and the top of the thin liquid suction tube Located outside the tube, the needle of the syringe extends into the top nozzle of the thin suction tube; there are a number of percolation holes on the annular side wall at the lower end of the tube, and a number of water inlets are opened on the tube body wrapped in filter gauze. on the annular sidewall of the hole. The utility model has the characteristics of simple structure, low cost, durability, convenient and quick sampling, etc., and can ensure the accuracy of sampling, simple operation, strong practicability and convenient maintenance, and can be widely used in sampling operations of various soil leaching solutions .

Description

Porous Soil In Situ Solution Extractor

Technical field:

The utility model mainly relates to a solution extracting solution, in particular to a porous soil in-situ solution extractor.

Background technique:

Existing soil solution extractors are mostly imported, and the price is relatively high. Generally, a foot-operated vacuum pump is used to extract soil solution. It is inconvenient to carry each sample, and the cost is high. At the same time, this foot-operated vacuum pump is easy to be dirty in rainy days.

Utility model content:

The purpose of the utility model is to make up for the defects of the prior art, and provide a porous soil in-situ solution extractor, which is economical and practical, can meet the needs of most scientific research institutes, and makes sampling more convenient.

The utility model is achieved through the following technical solutions:

The porous soil in-situ solution extractor is characterized in that: it includes a tube body and a syringe, the top nozzle of the tube body is provided with a sealing cover, and the bottom nozzle of the tube body is sealed with a filter gauze. There is an opening on the side wall of the upper end of the tube body, and a thin liquid suction tube passes through the opening on the side wall of the tube body and is inserted into the tube body. Out of the tube body, the needle of the syringe extends into the nozzle at the top of the thin suction tube; a number of percolation holes are opened on the annular side wall at the lower end of the tube body, and a number of water inlet holes are opened on the tube body wrapped in filter gauze. on the ring side wall.

The pore configuration at the bottom of the utility model and the gauze wrapping can make the leaching water in the soil enter the pipe body through two ways of side infiltration and bottom infiltration. Compared with other pipe bodies, it is more convenient and quick to collect water samples. The finally collected soil solution was drawn with a syringe.

The pipe body in the utility model adopts PVC pipe material, which is corrosion-resistant, light in weight, durable and low in price. In addition, the syringe used for extracting the soil solution in the utility model is more convenient to use and carry than a vacuum pump, and the cost is lower. The sealing cover provided at the top of the tube body can prevent rainwater and sundries from entering the tube body on the one hand and ensure accurate sampling, and on the other hand, this design is less likely to be damaged. A certain length of the pipe body is reserved between the end of the pipe body and the subsoil to prevent the soil from clogging the gauze. Between the bottom of the pipe and the soil, silica sand for filtering is laid, so that the leaching water can penetrate into the pipe body through two ways: side seepage and bottom of the pipe.

The utility model has the advantages of:

The utility model has the characteristics of simple structure, low cost, durability, convenient and quick sampling, etc., and can ensure the accuracy of sampling, simple operation, strong practicability, and convenient maintenance, and can be widely used in sampling operations of various soil leaching solutions .

Description of drawings:

Accompanying drawing is the structural representation of the utility model.

Detailed ways:

The porous soil in-situ solution extractor includes a tube body 1 and a syringe 2, a sealing cover 3 is arranged at the top nozzle of the tube body 1, and a filter gauze 4 is enclosed at the bottom nozzle of the tube body 1, There is an opening on the side wall of the upper end of the tube body 1, and a capillary liquid suction tube 5 passes through the opening on the side wall of the tube body 1 and is inserted into the tube body 1, and the bottom end of the capillary liquid suction tube 5 extends into the tube body 1 bottom, the top of the liquid suction capillary 5 is located outside the tube body 1, the needle of the syringe 2 extends into the top nozzle of the liquid suction capillary 5; the annular side wall at the lower end of the tube body 1 has a number of water inlet holes, There is a filter gauze wrapping 6 on the annular side wall that has some water inlet holes on the pipe body 1 .

The pipe body 1 has a total length of 100cm, the nozzle diameter R is 3.2cm, the length of the pipe above the ground is 10cm, the diameter of the pores at the bottom of the pipe body is 5mm, the length of the hole area is 10cm, and the length of the pipe between the hole area and the subsoil is 2.5cm , the gauze mesh is 60 mesh, and the length of the remaining middle section of the pipe is 75cm. The whole pipe body 1 is relatively light, and the material is durable and corrosion-resistant PVC pipe.

Claims (1)

1. The porous soil in-situ solution extractor is characterized in that: it includes a tube body and a syringe, the top nozzle of the tube body is provided with a sealing cover, and the bottom nozzle of the tube body is sealed with a filter gauze. There is an opening on the side wall of the upper end of the tube body, and a thin liquid-absorbing tube passes through the opening on the side wall of the tube body and is inserted into the tube body. The top is located outside the tube, and the needle of the syringe extends into the top nozzle of the thin suction tube; the annular side wall at the lower end of the tube has a number of percolation holes, and a filter gauze is wrapped on the tube to open a number of inlets. On the annular side wall of the water hole.

Images