CN110940549A

CN110940549A - Desertification soil sampler

Info

Publication number: CN110940549A
Application number: CN201911104398.2A
Authority: CN
Inventors: 陈妍
Original assignee: Xi'an Chongguangguangchen Testing Technology Co Ltd
Current assignee: Xi'an Chongguangguangchen Testing Technology Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-03-31

Abstract

The invention discloses a desertification soil sampler which comprises an iron pipe, wherein 2-4 handles are uniformly distributed on the periphery of the top end of the iron pipe, and a drill bit is fixedly connected to the bottom end of the iron pipe; the interior of the iron pipe is divided into a buffer cavity and a sampling cavity from top to bottom; a plurality of sampling units are sequentially arranged in the sampling cavity from top to bottom. The sandy soil sampler is chiseled by the drill bit, so that the sampling unit can sample better conveniently; through setting up the iron pipe and being connected with the drill bit, the unsafe phenomenon of sampling that avoids the soil sample random flow to cause when the sampling of digging a pit, through successive layer's boss width that advances one by one, guarantee can be according to the accurate sample of gathering of soil sample degree of depth, through the whereabouts baffle, guarantee that the soil sample of each soil layer does not pollute each other, simple structure has fine practical value.

Description

Desertification soil sampler

Technical Field

The invention belongs to the technical field of sampling equipment, and particularly relates to a desertification soil sampler.

Background

On the basis of knowing a pollution source, a pollution mode and pollution history and current situation, the sampling points are arranged by comprehensively considering the conditions of soil types, soil matrix, terrain, natural vegetation or crops and the like. If the field is not large and the shape is regular, the diagonal method and the quincunx method can be used; for example, the shape of the field piece is irregular, the terrain is changed, or the area is larger, and a checkerboard method or a snake-shaped method can be used. The circumstances in which the sampling point is sought can represent the prevailing soil type and its degree of contamination.

The distribution of pollutants in soil has horizontal difference caused by the distance from a pollution source and vertical difference caused by different time and other factors, and therefore soil samples are collected in layers according to the soil profile. The soil profile layering needs to consider the occurrence layers of various soils, consider different mechanical compositions, structures, organic matter contents and the like of the soils, and select the most representative uniform layer part for collecting the soil sample. Sometimes, in order to completely reflect the distribution characteristics of the pollutants in the section, a continuous sampling method is adopted.

Because desertification soil viscosity diminishes, and mobility is good, and very big hole is dug in traditional sample, sometimes the soil is loose to drop, confuses easily, especially soil microorganism soil sample collection is from down up layering sample, often can take place to collapse and lead to the inaccurate scheduling problem of soil layering sample. Therefore, it is necessary to develop a sampling instrument which can accurately and time-saving take soil, and especially has small damage to the soil surface. And (3) collecting a surface soil sample of the farm land or the wasteland, wherein a small iron shovel can be used. The cutting ring can be used for researching general physical properties of soil, such as soil volume weight, porosity, water retention property and the like. The cutting ring is a cylinder with openings at two ends, the lower opening is provided with a blade, and the height and the diameter of the cylinder are both about 5 cm. The most common sampling tool is an earth auger.

Disclosure of Invention

The invention aims to provide a desertification soil sampler, which solves the problems of complex structure, low sampling efficiency and inaccurate sampling of the existing desertification soil sampler.

The invention adopts the technical scheme that the desertification soil sampler comprises an iron pipe, wherein 2-4 handles are uniformly distributed on the periphery of the top end of the iron pipe, and a drill bit is fixedly connected to the bottom end of the iron pipe; the interior of the iron pipe is divided into a buffer cavity and a sampling cavity from top to bottom; a plurality of sampling units are sequentially arranged in the sampling cavity from top to bottom.

The present invention is also characterized in that,

the sampling unit comprises an annular boss located on the inner wall of the iron pipe, a baffle is arranged on the boss, and a plurality of feeding grooves are formed in the circumferential direction of the inner wall of the iron pipe.

The number of the feeding grooves is 3-5.

The widths of the corresponding bosses in the sampling units from top to bottom are increased in sequence.

The inner wall of the buffer cavity is also provided with a fixing column, and the fixing column is in threaded connection with the inner wall of the buffer cavity.

The iron pipe corresponding to the buffer cavity is also provided with a gap.

The invention has the beneficial effects that: the sandy soil sampler is chiseled by the drill bit, so that the sampling unit can sample better conveniently; through setting up the iron pipe and being connected with the drill bit, the unsafe phenomenon of sampling that avoids the soil sample random flow to cause when the sampling of digging a pit, through successive layer's boss width that advances one by one, guarantee can be according to the accurate sample of gathering of soil sample degree of depth, through the whereabouts baffle, guarantee that the soil sample of each soil layer does not pollute each other, simple structure has fine practical value.

Drawings

FIG. 1 is a schematic diagram of a sandy soil sampler of the invention;

FIG. 2 is a schematic structural diagram of a sampling unit in a desertification soil sampler according to the present invention;

FIG. 3 is a schematic diagram of a sandy soil sampler according to the present invention.

In the figure, 1, an iron pipe, 2, a handle, 3, a drill bit, 4, a boss, 5, a baffle, 6, a feeding groove, 7, a fixing column and 8, a gap are arranged.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The invention relates to a desertification soil sampler, which comprises an iron pipe 1, wherein 2-4 handles 2 are uniformly distributed on the top end of the iron pipe 1 in a circle, and a drill bit 3 is fixedly connected to the bottom end of the iron pipe 1; the interior of the iron pipe 1 is divided into a buffer cavity and a sampling cavity from top to bottom; a plurality of sampling units are sequentially arranged in the sampling cavity from top to bottom.

As shown in fig. 2, the sampling unit comprises an annular boss 4 located on the inner wall of the iron pipe 1, a baffle 5 is arranged on the boss 4, and a plurality of feeding grooves 6 are also arranged along the circumferential direction of the inner wall of the iron pipe 1.

The number of feed chutes 6 is 3-5.

The widths of the corresponding bosses 4 in the sampling unit from top to bottom are increased in sequence, and the boss 4 at the bottommost is matched with the baffle 5 with the largest inner diameter.

The inner wall of the buffer cavity is further provided with a fixing column 7, and the fixing column 7 is in threaded connection with the inner wall of the buffer cavity. After the soil desertification, the general condition ization, compare with normal soil, its viscosity diminishes, the mobility grow, the operator just can bore 3 drill bits into soil with the cooperation of drill bit 3 and handle 2 inside, but when the great or 3 chisel of drill bit depth of viscosity of soil was great, can install fixed column 7 one end at the cushion chamber inner wall, other one end is installed in other can guarantee the device that fixed column 7 does not move on soil upper portion, provide power for the operator, the convenient continuation is chiseled into.

The iron pipe 1 corresponding to the buffer cavity is also provided with a notch 8, and the purpose of the notch 8 is to feed the baffle 5 in the sampling process, so that the baffle 5 can fall on the corresponding boss 4; the size of the gap 8 enables the baffle 5 with the largest inner diameter to fall.

The working process of the desertification soil sampler comprises the following steps:

measuring and selecting a soil sample position to be measured, starting a drill bit 3, starting the drill bit 3 to chisel into the lower part of soil, slowly chiseling downwards when the soil sample position reaches a bottommost sampling unit, sampling for 2-3 minutes, waiting for the soil sample to enter the iron pipe 1 from a feed chute 6, putting a baffle 5 into the iron pipe through a notch 8, allowing the baffle 5 to fall to a widest boss 4, and circulating the subsequent sampling units in the same way, as shown in figure 3, when the viscosity of the soil is high or the chiseling depth of the drill bit 3 is large, mounting one end of a fixed column 7 on the inner wall of a buffer cavity through threaded connection, and mounting the other end of the fixed column 7 in other devices on the upper part of the soil to provide power for an operator so as to facilitate continuous chiseling.

The sandy soil sampler disclosed by the invention is chiseled through the drill bit 3, so that a sampling unit can conveniently and better sample; through setting up iron pipe 1 and being connected with drill bit 3, avoid the unsafe phenomenon of sampling that the soil sample random flow caused when the sampling of digging a pit, through 4 width of boss that successive layer is advanced, guarantee can be according to the accurate sample of gathering of soil sample degree of depth, through whereabouts baffle 5, guarantee that the soil sample of each soil layer does not pollute each other, avoided current desertification soil sampling ware structure complicated, sampling efficiency is low, the unsafe problem of taking a sample.

Claims

1. The desertification soil sampler is characterized by comprising an iron pipe (1), wherein 2-4 handles (2) are uniformly distributed on the top end of the iron pipe (1) in a circle, and a drill bit (3) is fixedly connected to the bottom end of the iron pipe (1); the interior of the iron pipe (1) is divided into a buffer cavity and a sampling cavity from top to bottom; and a plurality of sampling units are sequentially arranged in the sampling cavity from top to bottom.

2. The sandy soil sampler according to claim 1, wherein the sampling unit comprises an annular boss (4) located on the inner wall of the iron pipe (1), the boss (4) is provided with a baffle (5), and a plurality of feeding grooves (6) are further arranged along the circumferential direction of the inner wall of the iron pipe (1).

3. A sandy soil sampler as claimed in claim 2, wherein the number of feed chutes (6) is 3 to 5.

4. A sandy soil sampler as claimed in claim 2, wherein the width of the respective bosses (4) in the sampling unit from top to bottom is progressively greater.

5. The sandy soil sampler according to claim 1, wherein the inner wall of the buffer chamber is further provided with a fixing column (7), and the fixing column (7) is in threaded connection with the inner wall of the buffer chamber.

6. The sandy soil sampler according to claim 1, wherein the iron pipe (1) corresponding to the buffer cavity is further provided with a notch (8).