CN210293752U

CN210293752U - Gather portable sample thief of wetland original state soil

Info

Publication number: CN210293752U
Application number: CN201920807876.5U
Authority: CN
Inventors: 李亚雷; 解丽娜; 葛振鸣
Original assignee: East China Normal University
Current assignee: East China Normal University
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-04-10
Anticipated expiration: 2029-05-31

Abstract

The utility model discloses a gather portable sample thief of wetland original state soil, the utility model is suitable for an in the research to wetland soil physics and chemistry and biology nature, the soil sample of the different degree of depth is gathered to the accuracy. The utility model adopts the structure of the sub-ring piece and the main ring piece; the soil sample to be collected is wrapped in a cylindrical sampler formed by enclosing the sub-ring sheets and the mother ring sheets in a mode of pressing the sub-ring sheets and the mother ring sheets in a sub-partitioning mode, soil is retained in a pipe by using the pressure in the pipe, the sub-ring sheets and the mother ring sheets are radially propped open after the sub-ring sheets and the mother ring sheets are taken out, the complete soil sample is obtained, the interference on the soil sample is avoided, and the damage to the section of the soil sample is reduced. The utility model has the advantages of low manufacturing cost and simple sampling operation process.

Description

Gather portable sample thief of wetland original state soil

Technical Field

The utility model belongs to the technical field of the soil research technique and specifically relates to a gather portable sample thief of wetland original state soil.

Background

In the research of the physicochemical and biological properties of wetland soil, the difference of the soil properties under the soil profiles at different depths is often required to be known, and the soil samples of the soil profiles at different depths are required to be accurately collected. However, because wetland soil water content is higher, and soil texture is soft, use traditional sample thief very easily because soil water content is higher, the frictional force between earth pillar and the sample thief is less, and can't take out the earth pillar is complete, even gather the soil sample, insert the sample thief into soil sampling and cause the soil compaction very easily when pushing out the earth pillar from adopting the soil pipe with the sample thief, the natural section of soil is destroyed, can't satisfy the sampling requirement. And the traditional method for obtaining a flat soil profile by deeply digging a pit is not suitable for wetland soil with high soil water content.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough portable sample thief that a collection wetland original state soil that provides to prior art, the utility model is suitable for an in the research to wetland soil physics and chemistry and biological property, the soil sample of the different degree of depth is gathered to the accuracy. The utility model adopts the structure of the sub-ring piece and the main ring piece; the soil sample to be collected is wrapped in a cylindrical sampler formed by enclosing the sub-ring sheets and the mother ring sheets in a mode of pressing the sub-ring sheets and the mother ring sheets in a sub-partitioning mode, soil is retained in a pipe by using the pressure in the pipe, the sub-ring sheets and the mother ring sheets are radially propped open after the sub-ring sheets and the mother ring sheets are taken out, the complete soil sample is obtained, the interference on the soil sample is avoided, and the damage to the section of the soil sample is reduced.

Realize the utility model discloses the concrete technical scheme of purpose is:

a portable sampler for collecting undisturbed soil of a wetland is characterized by comprising a sub-ring piece and a main ring piece;

the sub-ring piece is an arc piece with a semicircular section, the outer side of one end of the sub-ring piece is provided with a first handle, and the end head of the other end of the sub-ring piece is provided with a first cutting edge;

the female ring piece is an arc piece with a section of a quarter of three circles, a second handle is arranged on the outer side of one end of the female ring piece, and a second cutting edge is arranged at the end head of the other end of the female ring piece;

the axial length of the female ring piece is greater than that of the sub-ring piece;

the female ring piece is wrapped at the opening at the outer side of the sub-ring piece, and the female ring piece and the sub-ring piece form a closed cylinder.

The utility model is suitable for an in the research to wetland soil physics and chemistry and biological property, the soil sample of the different degree of depth is gathered to the accuracy. The utility model adopts the structure of the sub-ring piece and the main ring piece; the soil sample to be collected is wrapped in a cylindrical sampler formed by enclosing the sub-ring pieces and the mother ring pieces in a mode of pressing the sub-ring pieces and the mother ring pieces in a sub-partitioning mode, the soil is retained in the pipe by using the pressure in the pipe, and the sub-ring pieces and the mother ring pieces are only radially propped open after being taken out, so that the complete soil sample is obtained, the interference on the profile of the soil sample is reduced, and the damage to the texture of the soil is also reduced.

The utility model discloses the soil sample of collection can be maintained under the prerequisite of soil original state, can avoid the compaction effect of collection process to the soil post, is particularly useful for gathering the soil that the water content is higher or the vegetation root system is more. The utility model has the advantages of low manufacturing cost and simple sampling operation process.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of fig. 1.

Detailed Description

Referring to fig. 1 and 2, the present invention includes a sub-ring plate 1 and a main ring plate 2;

the sub-ring piece 1 is an arc piece with a semicircular section, the outer side of one end of the sub-ring piece is provided with a first handle 11, and the end head of the other end of the sub-ring piece is provided with a first cutting edge 12;

the female ring piece 2 is an arc piece with a section of a quarter of three circles, the outer side of one end of the female ring piece is provided with a second handle 21, and the end head of the other end of the female ring piece is provided with a second cutting edge 22;

the axial length of the female ring piece 2 is larger than that of the sub-ring piece 1.

Referring to fig. 1 and 2, the female ring piece 2 is wrapped at the opening at the outer side of the sub-ring piece 1, and the female ring piece 2 and the sub-ring piece 1 form a closed cylinder.

The utility model discloses a make like this:

a stainless steel thin-walled tube is selected, the wall thickness is 1-1.2 mm, and the tube diameter is 5 cm.

Manufacturing a sub-ring sheet: cutting a thin-walled pipe with the length of 40 cm, cutting the pipe along the axial direction, and keeping a semicircular arc piece; a first handle 11 is welded at the position 5 cm away from one end of the outer side of the sub-ring piece 1; and (3) polishing the end head at the other end of the sub-ring sheet 1 to form a first cutting edge 12.

Manufacturing a mother ring piece: cutting a thin-wall pipe with the length of 50 cm, axially cutting, and reserving arc-shaped pieces of three quarters of a circle; a second handle 11 is welded at a position 15 cm away from one end of the outer side of the mother ring piece 2; and (3) polishing the end head of the other end of the female ring plate 2 to form a second cutting edge 22.

The mother ring piece 2 is wrapped at the opening on the outer side of the son ring piece 1, and the mother ring piece 2 and the son ring piece 1 form a closed cylinder.

The utility model discloses a work like this:

taking the soil sample collection of the utility model in the seashore reed wetland as an example, after the sampling area is selected, force is applied to the first handle 11, the first cutting edge 12 of the sub-ring piece 1 is vertically inserted into the soil, the depth is 30 cm, and the sub-ring piece is reserved on the soil surface by 10 cm;

then wrap up female ring piece 2 at the opening part in the sub-ring piece 1 outside, form and seal the drum, to the application of force of second handle 21, insert soil with the second blade 22 of female ring piece 2 perpendicularly slowly, the degree of depth is 30 cm, and female ring piece 2 and sub-ring piece 1 at this moment cut out a cylindrical soil sample, then hold first handle 11 and second handle 21 of female ring piece 2 and sub-ring piece 1 with the hand, will the utility model discloses take out with soil sample together. The main ring piece 2 and the sub ring piece 1 are sequentially broken from the ends of the first handle 11 and the second handle 21, and a soil sample with the height of 30 cm and the diameter of 5 cm can be obtained.

Because the utility model discloses a stainless steel thin wall tubular product preparation, and be equipped with sharp first blade 12 and second blade 22, consequently, can cut off the root system between soil sample and the soil easily at the acquisition in-process.

Because the utility model discloses a female ring piece 2 and sub-ring piece 1 are the split ring, and when the surface of rip cutting soil, the resistance that needs to overcome is less, has reduced the compaction effect to soil sample, and furthest maintains the original appearance of soil to rip cutting out a relatively complete soil post, obtain the soil sample of ideal.

Because the utility model discloses a stainless steel thin wall tubular product preparation, female ring piece 2 and sub-ring piece 1 all have elasticity, take out the soil sample back, do benefit to female ring piece 2 and sub-ring piece 1 elastic action by oneself and resume the deformation, both reduced the interference to the soil sample section, do benefit to again the utility model discloses a reuse.

The utility model discloses to the characteristics of wetland soil is more moist, soft, traditional sample thief in sampling process, the easy landing of soil sample, and the utility model discloses by the synthetic drum of female ring piece 2 and sub-ring piece 1, utilize the pressure in the section of thick bamboo, take out the column sample.

The utility model discloses a stainless steel can alleviate the corrosion to the sample thief because of the water content and the salinity of wetland soil.

The utility model discloses a surface is smooth, be convenient for wash, is also convenient for take out soil sample.

Claims

1. A portable sampler for collecting undisturbed soil of a wetland is characterized by comprising a sub-ring piece (1) and a main ring piece (2);

the sub-ring piece (1) is an arc piece with a semicircular section, the outer side of one end of the sub-ring piece is provided with a first handle (11), and the end head of the other end of the sub-ring piece is provided with a first cutting edge (12);

the female ring piece (2) is an arc piece with a section of a quarter of three circles, a second handle (21) is arranged on the outer side of one end of the female ring piece, and a second cutting edge (22) is arranged at the end head of the other end of the female ring piece;

the axial length of the female ring piece (2) is greater than that of the sub-ring piece (1);

the mother ring piece (2) is wrapped at the opening on the outer side of the sub ring piece (1), and the mother ring piece (2) and the sub ring piece (1) form a closed cylinder.