CN210037263U

CN210037263U - Undisturbed soil volume weight sampler

Info

Publication number: CN210037263U
Application number: CN201920576797.8U
Authority: CN
Inventors: 牛钰杰; 朱会敏; 杨思维; 花立民
Original assignee: Gansu Agricultural University
Current assignee: Gansu Agricultural University
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-02-07
Anticipated expiration: 2029-04-25

Abstract

The utility model discloses an undisturbed soil volume weight sampler, which comprises a ring knife handle, a ring knife cover and a steel knife; the annular cutter handle comprises a cutter handle at the upper end, a sampling cylinder at the lower end and a cutting edge at the bottom end, a semicircular annular cutter groove is formed in the middle of the sampling cylinder, and the annular cutter is movably arranged in the annular cutter groove; the ring knife handle is provided with scales along the height direction. The utility model has simple structure and convenient use, and the cutting ring movably arranged in the cutting ring groove can not cause the cutting ring to fall and be misplaced, thereby improving the sampling efficiency; the cutter handle is lengthened, the depth scale is marked, and the lower-layer soil can be directly obtained without digging a large pit when the lower-layer soil is obtained, so that the sampling is simpler; a certain space is reserved in the sampling cylinder at the upper end of the cutting ring groove, so that the situation that the soil in the cutting ring is extruded due to the fact that the soil is contacted with the top end of the sampling cylinder and the real volume weight of the soil is affected is avoided, and the situation that the original volume weight soil is obtained is guaranteed.

Description

Undisturbed soil volume weight sampler

Technical Field

The utility model relates to a sampler especially relates to a original state soil unit weight sampler, belongs to the soil collection field.

Background

The volume weight of soil is the dry weight of soil per unit volume of soil in the natural state, and is usually expressed in g/cm³And (4) showing. The content of organic matters in the soil, the texture condition of the soil and the quality of the soil structure can be estimated through the volume weight of the soil. Therefore, the volume weight of soil is an important index which is often required to be measured in the fields of soil physics, agricultural science and the like.

At present, the soil volume weight is mainly determined at home and abroad by adopting a cutting ring method, in the soil volume weight measuring process, a cutting ring with a certain volume is vertically inserted into soil to be measured in a natural state, so that a soil sample is filled in the soil sample, and after drying, the weight of dry soil is weighed and the weight of the dried soil in unit volume is calculated.

In the prior art, a circular cutter handle (the length of the circular cutter handle is about 10cm) is directly and rigidly connected with a circular cutter so as to obtain the volume weight of soil; in the process of obtaining the volume weight, the cutting ring is easy to separate and dislocate from the cutting ring handle, and the downward knocking by a hammer is easy to cause the injury of a hand holding the handle; because the circular cutter handle is short, when soil of a soil layer of 20-30cm is obtained, a soil pit needs to be cut open, a large area of natural soil is damaged, and the depth of a soil layer is not directly marked; the annular cutter handle is directly connected with the annular cutter, and when the hammer is used for knocking downwards to obtain the volume weight of soil, the soil in the annular cutter is contacted with the annular cutter handle to cause the obtained soil to be extruded, so that the real volume weight of the soil is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing an original state soil unit weight sampler, this sampler is strikeed downwards with the hammer and is difficult to cause the hand of controlling the handle to be injured by a crashing object, and the degree of depth of ability direct marking soil can guarantee to acquire normal position unit weight soil.

In order to realize the above purpose, the utility model discloses a technical scheme:

an undisturbed soil volume weight sampler comprises a ring cutter handle, a ring cutter cover and a steel cutter;

the annular cutter handle comprises a cutter handle at the upper end, a sampling cylinder at the lower end and a cutting edge at the bottom end, a semicircular annular cutter groove is formed in the middle of the sampling cylinder, and the annular cutter is movably arranged in the annular cutter groove;

the annular knife handle is provided with scales along the height direction.

In the utility model, the cutting ring is embedded in the cutting ring groove, the cutting edge end of the cutting ring is not needed, no cutting edge is arranged at both ends, and the sampler mainly cuts soil by the cutting edge at the bottom end of the cutting ring handle; the annular cutter groove is positioned in the middle of the sampling cylinder, and a certain space is reserved on the sampling cylinder at the upper end of the annular cutter groove, so that the phenomenon that the soil in the annular cutter is contacted with the top end of the sampling cylinder to cause the extrusion of the obtained soil and influence on the real volume weight of the soil is avoided; the annular knife handle is provided with scales along the height direction, so that the soil layer depth can be directly marked during use, and convenience and rapidness are realized.

Further, a cutting ring clamping position is arranged at the inner end of the cutting ring groove, and the depth of the cutting ring clamping position is equal to the thickness of the cutting ring. The cutting ring screens mainly play a limiting role to the cutting ring, the depth of the cutting ring screens is equal to the thickness of the cutting ring, and after the cutting ring is embedded into the cutting ring groove, the two inner walls are tightly matched.

Furthermore, steel knife insertion grooves are formed in the top end and the bottom end of the annular knife groove, so that after sampling is facilitated, the steel knives are inserted into the steel knife insertion grooves, soil at the top end and the bottom end of the annular knife is cut flat, and the annular knife filled with the soil can be taken out conveniently.

Furthermore, a soil observation port communicated with the steel knife insertion groove is formed in the upper side of the steel knife insertion groove at the upper end, so that whether soil touches the top end of the cutting ring or not can be observed conveniently.

Further, a cutter handle support is arranged at the top end of the cutter handle, so that the hard soil can be conveniently obtained by knocking with an iron hammer; a grab handle is arranged on the side wall of the middle part, so that the knife handle can be conveniently grabbed; the grab handle is made of rubber.

Further, the steel cutter comprises a semicircular cutter at the front end, a square cutter in the middle and a cutter handle at the rear end, so that soil in the cutting ring and soil in the sampling cylinder can be conveniently separated.

Furthermore, the cutting ring handle is integrally formed, so that the separation of the handle and the sampling cylinder is avoided.

Further, the height of the annular cutter groove is 4-6 cm; the height of the sampling cylinder at the upper end of the annular cutter groove is 4-4.5cm, and the height of the sampling cylinder at the lower end of the annular cutter groove is 0.5-1 cm; the height of the sampling cylinder at the upper end of the annular cutter groove is 4-4.5cm, so that enough space is reserved, and the original volume weight soil can be obtained.

Furthermore, the length of the cutter handle is 20-30cm, the cutter handle is lengthened, and the marked scales are combined, so that lower-layer soil can be directly obtained without digging a large soil pit when the lower-layer soil is obtained.

The utility model has the advantages that:

the utility model has simple structure and convenient use, and the cutting ring movably arranged in the cutting ring groove can not cause the cutting ring to fall and be misplaced, thereby improving the sampling efficiency; the cutter handle is lengthened, the depth scale is marked, and the lower-layer soil can be directly obtained without digging a large pit when the lower-layer soil is obtained, so that the sampling is simpler; a certain space is reserved in the sampling cylinder at the upper end of the cutting ring groove, so that the situation that the soil in the cutting ring is extruded due to the fact that the soil is contacted with the top end of the sampling cylinder and the real volume weight of the soil is affected is avoided, and the situation that the original volume weight soil is obtained is guaranteed.

Drawings

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

FIG. 2 is a front view of the ring-shaped knife handle of the present invention;

FIG. 3 is a rear view of the ring-shaped knife handle of the present invention;

FIG. 4 is a schematic structural view of the cutting ring of the present invention;

FIG. 5 is a schematic view of the ring knife cover of the present invention;

in the figure: 1. a circular knife handle; 11. a knife handle; 12. a sampling tube; 13. cutting edges; 14. a circular cutter groove; 15. clamping the cutting ring; 16. inserting a steel knife into the groove; 17. a soil viewing port; 18. a tool shank support; 19. a handle; 2. cutting with a ring cutter; 3. a cutter ring cover; 4. a steel knife; 41. a semicircular cutter; 42. a square cutter; 43. a knife handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further explained with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

An undisturbed soil volume weight sampler, as shown in figures 1-5, comprises a circular knife handle 1, a circular knife 2, a circular knife cover 3 and a steel knife 4;

the annular knife handle 1 comprises a knife handle 11 at the upper end, a sampling cylinder 12 at the lower end and a cutting edge 13 at the bottom end, a semicircular annular knife groove 14 is formed in the middle of the sampling cylinder 12, and the annular knife 2 is movably arranged in the annular knife groove 14;

the ring knife handle 1 is provided with scales along the height direction.

As the optimization scheme of the utility model, the ring sword groove 14 the inner is provided with cutting ring screens 15, and the degree of depth of cutting ring screens 15 equals with the thickness of cutting ring 2.

As the optimization scheme of the utility model, the top and the bottom of ring sword groove 14 all are provided with steel sword insertion groove 16.

As the optimization scheme of the utility model, the upper side of the steel knife insertion groove 16 at the upper end is provided with a soil observation opening 17 communicated with the steel knife insertion groove 16.

As an optimized proposal of the utility model, the top end of the knife handle 11 is provided with a knife handle support 18, the middle side wall is provided with a grab handle 19, and the material of the grab handle 19 is rubber.

As the optimization scheme of the utility model, the steel knife 4 comprises a semi-circular cutter 41 at the front end, a middle square cutter 42 and a handle 43 at the rear end.

As an optimized proposal of the utility model, the cutting ring handle 1 is integrally formed.

As an optimized proposal of the utility model, the height of the annular cutter groove 14 is 4-6 cm; the height of the sampling cylinder 12 at the upper end of the annular cutter groove 14 is 4-4.5cm, and the height of the sampling cylinder 12 at the lower end of the annular cutter groove 14 is 0.5-1 cm; in this embodiment, the height of the annular cutter groove 14 is 5 cm; the height of the sampling tube 12 at the upper end of the ring cutter groove 14 is 4cm, and the height of the sampling tube 12 at the lower end of the ring cutter groove 14 is 1 cm.

As the optimization scheme of the utility model, the length of the knife handle 11 is 20-30cm, and the length of the knife handle is 20 cm.

For better understanding, the utility model discloses, following is to the theory of operation of the utility model make a complete description:

after the soil profile is selected in the test area, a sampler is used for sampling the middle part of each layer from top to bottom according to the depth of the volume weight of the obtained soil profile. If only the volume weight of the surface soil is measured, the soil section can be avoided, the surface of the sampling layer is planed by an iron shovel, plants on the surface are removed, the ring cutter 2 is embedded in the ring cutter groove 14, the cutting edge 13 at the bottom end of the ring cutter handle 11 faces downwards, the cutter handle support 18 at the top end of the ring cutter handle 11 is pressed downwards, and the sampling cylinder 12 is vertically pressed into the soil.

If the soil is hard, the grab handle 19 on the annular knife handle 11 is grabbed by one hand, the knife handle support 18 of the annular knife handle 11 is lightly tapped by the hammer by the other hand, whether the soil surface touches the top of the annular knife 2 or not can be observed through the soil observation port 17 on the upper side of the annular knife groove 14, and the pressing is stopped when the whole annular knife 2 is completely pressed into the soil.

The cutter handle 43 of the steel cutter 4 is held by hand, and the semicircular cutter 41 at the front end of the steel cutter 4 extends into the steel cutter insertion grooves 16 at the top end and the bottom end of the annular cutter groove 14 to cut the soil at the top end and the bottom end of the annular cutter 2 so as to separate the soil from the soil in the sampling cylinder 12; then, taking out the cutting ring 2 by hand, and finishing the soil in the top end and the bottom end of the cutting ring by using a steel cutter 4 after taking out the cutting ring so as to enable the soil to be flush with two ports of the cutting ring 2; and finally, covering the two ends of the cutting ring 2 filled with soil by using a cutting ring cover 3 to preserve the soil.

If the volume weight of the soil at the lower layer is continuously measured, a larger soil pit does not need to be dug, the depth can be directly measured through the scales marked on the cutting ring handle 1, and the volume weight of the soil can be obtained downwards by the same method.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an undisturbed soil unit weight sampler which characterized in that: comprises a circular knife handle (1), a circular knife (2), a circular knife cover (3) and a steel knife (4);

the annular knife handle (1) comprises a knife handle (11) at the upper end, a sampling cylinder (12) at the lower end and a cutting edge (13) at the bottom end, a semicircular annular knife groove (14) is formed in the middle of the sampling cylinder (12), and the annular knife (2) is movably arranged in the annular knife groove (14);

the ring knife handle (1) is provided with scales along the height direction.

2. The undisturbed soil bulk density sampler of claim 1 wherein: a cutting ring position clip (15) is arranged at the inner end of the cutting ring groove (14), and the depth of the cutting ring position clip (15) is equal to the thickness of the cutting ring (2).

3. The undisturbed soil bulk density sampler of claim 1 wherein: and steel knife inserting grooves (16) are formed in the top end and the bottom end of the annular knife groove (14).

4. A undisturbed soil bulk density sampler as claimed in claim 3 wherein: a soil observation port (17) communicated with the steel knife insertion groove (16) is arranged at the upper side of the steel knife insertion groove (16) at the upper end.

5. The undisturbed soil bulk density sampler of claim 1 wherein: the tool handle is characterized in that a tool handle support (18) is arranged at the top end of the tool handle (11), a grab handle (19) is arranged on the side wall in the middle of the tool handle, and the grab handle (19) is made of rubber.

6. The undisturbed soil bulk density sampler of claim 1 wherein: the steel knife (4) comprises a semicircular cutter (41) at the front end, a square cutter (42) in the middle and a knife handle (43) at the rear end.

7. The undisturbed soil bulk density sampler of claim 1 wherein: the annular knife handle (1) is integrally formed.

8. The undisturbed soil bulk density sampler of claim 1 wherein: the height of the annular cutter groove (14) is 4-6 cm; the height of the sampling cylinder (12) at the upper end of the annular cutter groove (14) is 4-4.5cm, and the height of the sampling cylinder (12) at the lower end of the annular cutter groove (14) is 0.5-1 cm.

9. The undisturbed soil bulk density sampler of claim 1 wherein: the length of the knife handle (11) is 20-30 cm.