CN216050826U

CN216050826U - Device for taking undisturbed soil of deep soil profile in layered mode

Info

Publication number: CN216050826U
Application number: CN202122234866.7U
Authority: CN
Inventors: 陈安强; 王攀磊; 闫辉; 付斌; 胡万里; 倪明; 耿川雄
Original assignee: Institute of Agricultural Environment and Resources of Yunnan Academy of Agricultural Sciences
Current assignee: Institute of Agricultural Environment and Resources of Yunnan Academy of Agricultural Sciences
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-03-15
Anticipated expiration: 2031-09-15

Abstract

The utility model relates to a device for obtaining undisturbed soil from deep soil profiles in layers, belonging to the technical field of soil sampling equipment. A rod, a restraint ring and a circular scale; the lower end of the percussion rod is threadedly connected with the drill rod, the middle part of the transverse handle transversely passes through the percussion rod, and the two ends of the transverse handle are located on both sides of the percussion rod; The soil cover is fixedly connected with the lower end of the drill pipe, the earth borrower is connected with the earth borrow cover threadedly, the ring cutter is located in the earth borrower, the measuring rod is located on the side of the drill pipe, and is fixed on the drill pipe through the restraint ring, and the measuring pipe passes through the earth borrow cover. The through hole opened on the top is fixedly connected with the circular ruler in the ring cutter. The utility model solves the problem that the undisturbed soil column taken cannot reflect the real soil bulk density because the undisturbed soil in the ring knife is not filled or the undisturbed soil in the ring knife continues to be squeezed after it is filled, so that the taken undisturbed soil column cannot reflect the real soil bulk density, and the operation is convenient, Save labor and time.

Description

Device for taking undisturbed soil of deep soil profile in layered mode

Technical Field

The utility model belongs to the technical field of soil sampling equipment, and particularly relates to a device for taking undisturbed soil of a deep soil profile in a layering manner.

Background

With the development of intensive agriculture, after a large amount of fertilizer is applied to soil, a large amount of elements such as nitrogen and phosphorus migrate to deep soil under the leaching action, and in order to monitor the storage amount of nutrients such as nitrogen and phosphorus in a soil profile, a deep soil sample profile sample must be taken for monitoring and analysis. The soil for monitoring the nutrient content can be obtained by using a spiral soil drill to analyze and test disturbed soil in a layering mode, and the soil volume weight needs to be monitored by taking undisturbed soil. The step-by-step collection of undisturbed soil samples is mostly carried out by excavating soil profiles in a manual mode. Firstly, a soil pit with a certain depth is dug manually, then the person enters the soil pit, and an undisturbed soil sample is taken from the side surface of the soil pit by using a cutting ring, but the method for manually digging the soil section is time-consuming and labor-consuming, and has certain destructiveness on the original soil structure. Although a method for taking an undisturbed soil sample by sleeving a cutting ring on an earth drill inner sleeve is also available at present, in the method, an iron hammer is used for forcibly knocking the top end of the earth drill during sampling to wedge the cutting ring at the bottom end of the earth drill into the soil, however, the current device cannot correctly judge the proper depth of the cutting ring inserted into the soil in the earth drill, and if the depth of the cutting ring inserted into the soil in the earth drill is lower than the height of the cutting ring, the undisturbed soil in the cutting ring is not filled after the cutting ring is taken out, so that the test of the volume weight of the soil is influenced; if the depth of the cutting ring inserted into the soil in the soil drill is consistent with the height of the cutting ring, but the proper height is still not reached subjectively, the soil drill handle is knocked by external force continuously, the original soil column in the cutting ring is further squeezed, the soil column is compacted, and the real soil volume weight cannot be reflected. Therefore, there is a need for an undisturbed soil sampling device that does not damage the undisturbed soil structure and can reflect the real soil volume weight.

Disclosure of Invention

In order to overcome the problems in the background art, the utility model provides a device for taking undisturbed soil of a deep soil section in a layering manner, which can not destroy the soil layer structure in a large area.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the device for taking undisturbed soil of the deep soil section in a layered mode comprises a knocking rod 1, a drill rod 2, a transverse holding handle 3, a soil taking cover 4, a soil taking device 5, a cutting ring 6, a measuring rod 7, a binding ring 8 and a circular scale 9; the lower end of the knocking rod 1 is in threaded connection with the drill rod 2; the middle part of the horizontal holding handle 3 transversely penetrates through the knocking rod 1, and two ends of the horizontal holding handle 3 are positioned at two sides of the knocking rod 1; the soil taking cover 4 is fixedly connected with the lower end of the drill rod 2; the soil sampler 5 is in threaded connection with the soil sampling cover 4, and the side surfaces of the soil sampler and the soil sampling cover are completely overlapped after the connection; the cutting ring 6 is positioned in the soil sampler 5; the measuring rod 7 is positioned on one side of the drill rod 2 and is fixed on the drill rod 2 through a binding ring 8, and the measuring rod 7 penetrates through a through hole formed in the soil sampling cover 4 and is fixedly connected with a circular scale 9 in the cutting ring 6.

Preferably, the side wall of the drill rod 2 is provided with scale marks 10.

Preferably, the two ends of the horizontal holding handle 3 are provided with an anti-wear sleeve 11.

Preferably, the knocking rod 1 and the horizontal holding handle 3 are of an integrated structure.

Preferably, the inner diameter of the lower port of the soil sampler 5 is completely consistent with the inner diameter of the cutting ring 6, the outer diameter of the lower port of the soil sampler 5 is slightly closed, and after the cutting ring 6 is placed into the soil sampler 5 from the upper end of the soil sampler 5, the inner wall of the lower port of the soil sampler 5 is completely overlapped with the inner wall of the cutting ring 6.

The utility model has the beneficial effects that:

1. the utility model can not destroy the soil layer structure in a large area, and the taken undisturbed soil can accurately reflect the real soil volume weight, is convenient and practical, and saves labor and time.

2. According to the utility model, by arranging the circular scale and the measuring rod, the circular scale can correspondingly rise along with the height of the undisturbed soil column in the cutting ring, and simultaneously drives the measuring rod to rise, so that the depth of the soil sampler inserted into the soil can be obtained according to the scale marks on the drill rod, and the problem that the taken undisturbed soil column cannot reflect the real soil volume weight due to the fact that the undisturbed soil in the cutting ring is not filled or the soil column in the cutting ring is continuously extruded after the undisturbed soil is filled can be avoided.

Drawings

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

in the figure, 1-knocking rod, 2-drill rod, 3-horizontal grab handle, 4-soil-taking cover, 5-soil-taking device, 6-cutting ring, 7-measuring rod, 8-binding ring, 9-circular scale, 10-scale mark and 11-anti-wear sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings for the convenience of the skilled person.

As shown in fig. 1, the device for taking undisturbed soil of a deep soil section in a layered mode comprises a knocking rod 1, a drill rod 2, a transverse holding handle 3, a soil taking cover 4, a soil taking device 5, a cutting ring 6, a measuring rod 7, a binding ring 8 and a circular scale 9. The lower end of the knocking rod 1 is provided with external threads which are matched with the internal threads at the upper end of the drill rod 2, the knocking rod 1 is in threaded connection with the drill rod 2, the drill rod 2 can be further heightened through threaded connection, deeper soil layers can be obtained, and the knocking rod is convenient to disassemble and carry. The middle part of the horizontal grab handle 3 transversely passes through the knocking rod 1, the two ends of the horizontal grab handle 3 are positioned at the two sides of the knocking rod 1, the knocking rod 1 and the horizontal grab handle 3 are welded into an integral structure, and the two ends of the horizontal grab handle 3 are provided with the anti-abrasion sleeves 11, so that the worker can be prevented from slipping when holding the horizontal grab handle 3 to take soil, and the hand injury is avoided. The soil taking cover 4 is welded and fixed with the lower end of the drill rod 2, external threads are arranged on the soil taking cover 4, internal threads are arranged in the soil taking device 5, the soil taking device 5 is in threaded connection with the soil taking cover 4, the disassembly is convenient, the cutting ring 6 in the soil taking device 5 is taken out, and the side faces of the soil taking device 5 and the soil taking cover 4 are completely overlapped after the connection.

The cutting ring 6 is just placed in the soil sampler 5, the size is just required to be matched, the cutting ring 6 can be poured out of the soil sampler conveniently, and redundant soil plugs can not enter the soil sampler 5 and the cutting ring 6 during soil sampling. The inner diameter of the lower port of the soil sampler 5 is completely consistent with the inner diameter of the cutting ring 6, the outer diameter of the lower port of the soil sampler 5 is slightly closed, and after the cutting ring 6 is placed into the soil sampler 5 from the upper end of the soil sampler 5, the inner wall of the lower port of the soil sampler 5 is completely overlapped with the inner wall of the cutting ring 6. Measuring stick 7 is located 2 one sides of drilling rod, and fix on drilling rod 2 through constraint ring 8, measuring stick 7 passes the through-hole of seting up on the geotome lid 4 and the circular scale 9 fixed connection in the cutting ring 6, and be equipped with scale mark 10 on the drilling rod 2 lateral wall, in cutting ring 6 slowly inserts soil, circular scale 9 in cutting ring 6 slowly rises, it rises to drive measuring stick 7 simultaneously, according to scale mark 10 on the drilling rod 2 lateral wall, the scale that measuring stick 7 corresponds when the record is not geotome and the scale that measuring stick 7 corresponds after geotome, can obtain the degree of depth that cutting ring 6 inserted in soil, again according to the height of cutting ring 6, can understand whether the original state soil in the cutting ring 6 is filled up with.

The working process of the utility model is as follows:

when the device is used, whether the circular scale 9 is positioned at the bottom of the cutting ring 6 or not is confirmed, and then the device is placed on the surface layer of soil vertically to the ground. The top of the knocking rod 1 is knocked by a knocking hammer, the cutting ring 6 in the soil sampler 5 is slowly inserted into soil, the corresponding measuring rod 7 slowly rises, when the rising height of the measuring rod 7 is consistent with the height of the cutting ring 6 in the soil sampler 5, knocking is stopped, the soil sampler is pulled out from a soil hole, the soil sampler 5 is unscrewed, and the cutting ring 6 filled with original soil is taken out.

As a preferable technical scheme, the utility model can be used together with a threaded earth drill, and can accelerate the earth taking progress. Firstly, a threaded soil drill with a diameter slightly larger than that of the soil sampler 5 is used for drilling a soil layer with a corresponding depth, then the original soil is sampled by using the soil sampler, because the soil hole wall is uneven and the top of the soil layer is uneven, the soil in the soil hole wall and the soil at the top of the soil layer with the depth enter the cutting ring 6, so that the original soil column sampled for the first time cannot reflect the real soil volume weight, and then the original soil column sampled for the second time is sampled again, and the soil column in the cutting ring 6 for the second time can reflect the real soil volume weight of the soil layer. And after the soil layer undisturbed soil column is taken out, continuously drilling to the next layer of sampling depth along the soil hole by using a threaded soil drill, taking the undisturbed soil on the layer according to the corresponding method, and so on.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the utility model, and that, although the utility model has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the utility model as defined by the appended claims.

Claims

1. a device for obtaining deep soil profile undisturbed soil in layers, is characterized in that: the described device for obtaining deep soil profile undisturbed soil in layers comprises tapping rod (1), drill rod (2), horizontal handle ( 3), borrow cover (4), earth borrower (5), ring knife (6), measuring rod (7), restraint ring (8) and circular ruler (9); the tapping rod (1) The lower end is threadedly connected with the drill rod (2); the middle part of the horizontal handle (3) transversely passes through the knocking rod (1), and the two ends of the horizontal holding handle (3) are located on both sides of the knocking rod (1); The soil borrow cover (4) is fixedly connected with the lower end of the drill pipe (2), and the side surfaces are completely overlapped after the connection; the soil borrow device (5) is threadedly connected with the soil borrow cover (4); the ring cutter (6) is located in the earth borrower (5); the measuring rod (7) is located on one side of the drill pipe (2), and is fixed on the drill pipe (2) by the restraining ring (8), and the measuring rod (7) passes through the borrowing tool The through hole opened on the cover (4) is fixedly connected with the circular ruler (9) in the ring knife (6).

2 . The device for obtaining undisturbed soil from deep soil profiles by layers according to claim 1 , characterized in that: scale lines ( 10 ) are provided on the side walls of the drill pipe ( 2 ).

3 . The device for obtaining undisturbed soil from deep soil profiles by layering according to claim 1 , wherein the two ends of the transverse handle ( 3 ) are provided with anti-wear sleeves ( 11 ). 4 .

4 . The device for obtaining undisturbed soil from deep soil profiles by layers according to claim 1 or 3 , characterized in that the tapping rod ( 1 ) and the transverse handle ( 3 ) have an integral structure.

5. A device for taking deep soil profile undisturbed soil by layering according to claim 1, characterized in that: the inner diameter of the lower port of the soil borrower (5) is exactly the same as the inner diameter of the ring cutter (6), taking The outer diameter of the lower port of the earth tool (5) is slightly closed. After the ring knife (6) is put into the earth extractor (5) from the upper end of the earth extractor (5), the inner wall of the lower port of the earth extractor (5) and the inner wall of the ring knife (6) completely coincident.