CN211262783U

CN211262783U - Soil sampler

Info

Publication number: CN211262783U
Application number: CN201922280163.0U
Authority: CN
Inventors: 赵新; 刘强; 岳丹丹; 朱文博
Original assignee: South China Agricultural University
Current assignee: South China Agricultural University
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-08-14
Anticipated expiration: 2029-12-18

Abstract

The utility model relates to the technical field of soil sampling, and discloses a soil sampler, which comprises a positioning cylinder, a sampling cylinder and a push-pull component; a first limiting piece is arranged inside the positioning cylinder to divide an inner cavity of the positioning cylinder into a first cavity and a second cavity, one end of the push-pull assembly is movably arranged in the first cavity, and the other end of the push-pull assembly passes through the first limiting piece and then is positioned in the second cavity; the sampling tube comprises a first half tube body and a second half tube body which are arranged up and down, a first inclined opening is formed in one end of the first half tube body, a second inclined opening is formed in one end of the second half tube body, the first inclined opening and the second inclined opening are arranged oppositely and are located in a second cavity, and the first half tube body and the second half tube body are connected with the other end of the push-pull assembly. The beneficial effects are that: the method can effectively overcome the adhesion between the soil sample and the cylinder wall, and successfully obtain the complete soil sample.

Description

Soil sampler

Technical Field

The utility model relates to a soil sampling technical field, concretely relates to soil sampling ware.

Background

Due to the viscosity of the soil, the collected soil sample can be adhered to the wall of the sampler and cannot fall off smoothly. The existing soil sampler usually adopts a bulldozer to directly push out a soil sample in a sampling cylinder, and the mode easily destroys the original state of the soil and is difficult to ensure the integrity of the soil sample.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the deficiencies of the prior art, providing a soil sampling ware that can open and shut that simple structure, reasonable obtained complete soil sample smoothly.

The purpose of the utility model is realized through the following technical scheme: a soil sampler comprises a positioning cylinder, a sampling cylinder and a push-pull assembly; a first limiting piece is arranged inside the positioning cylinder to divide an inner cavity of the positioning cylinder into a first cavity and a second cavity, one end of the push-pull assembly is movably arranged in the first cavity, and the other end of the push-pull assembly passes through the first limiting piece and then is positioned in the second cavity; the sampling tube comprises a first half tube body and a second half tube body which are arranged up and down, a first inclined opening is formed in one end of the first half tube body, a second inclined opening is formed in one end of the second half tube body, the first inclined opening and the second inclined opening are oppositely arranged and are both located in a second cavity, a swing space which is gradually closed along the central axis of the sampling tube is formed between the first inclined opening and the second inclined opening, a second limiting part matched with the first half tube body and the second half tube body is arranged on the inner wall of the second cavity, and the first half tube body and the second half tube body are both connected with the other end of the push-pull assembly.

Furthermore, the first semi-cylinder body and the second semi-cylinder body are provided with pin holes matched with the second limiting part, and the pin holes comprise large-diameter ends and small-diameter ends distributed along the length direction of the sampling cylinder.

Furthermore, the inner walls of one ends of the first half cylinder body and the second half cylinder body are respectively provided with a connecting block, and the other ends of the push-pull assemblies are respectively and correspondingly connected with the connecting blocks.

Further, the other end of the first half cylinder is provided with a third inclined opening, the other end of the second half cylinder is provided with a fourth inclined opening, and the third inclined opening and the fourth inclined opening are oppositely arranged to form a pointed conical end.

Furthermore, the end surfaces of the first inclined opening and the second inclined opening are abutted to the first limiting piece.

Further, the push-pull assembly comprises a transmission part, an elastic part and a connecting rod; the one end of driving medium is movably set up in first cavity, and its other end passes and lies in the second cavity behind the first locating part to be connected with first half barrel and the half barrel of second respectively through the connecting rod, the periphery of driving medium is located to the elastic component cover, just the one end and the driving medium butt of elastic component, the other end and the first locating part butt of elastic component.

Further, the transmission part comprises a pressure plate, a push rod and a connector; the pressure disk is movably arranged in the first cavity, one end of the push rod is connected with the pressure disk, the other end of the push rod penetrates through the first limiting part and then is located in the second cavity, the connector is installed at the other end of the push rod, and the connector is connected with the first half cylinder and the second half cylinder through the connecting rod respectively.

Further, the positioning cylinder includes fixed disk and both ends open-ended sleeve, telescopic inside is provided with first locating part to separate into first cavity and second cavity with telescopic inner chamber, the fixed disk is installed in the periphery of first cavity open end, the fixed disk is opened there is the bolt hole, the internal diameter of second cavity open end increases progressively from inside to outside.

Further, the sleeve includes half barrel of third and the half barrel of fourth that sets up from top to bottom, the fixed disk is the semicircular, the fixed disk is all installed to the periphery of half barrel of third and the half barrel of fourth one end, the internal diameter of the other end of half barrel of third and the half barrel of fourth gradually increases progressively from inside to outside.

Further, the device also comprises a cushion block; one side of the first limiting piece, which is close to the second cavity, is provided with a concave part and a convex part which are distributed in a step mode, the cushion block is arranged on the inner wall of the second cavity and close to the concave part of the first limiting piece, and the first inclined opening and the second inclined opening are respectively abutted to the corresponding convex part and the cushion block.

Further, the first limiting part is a semi-annular protruding block, and the second limiting part is a columnar protruding block.

The principle of the utility model is that: the soil sampler adopts the bionics principle in the aspects of acquiring, releasing soil and removing residual soil on the cylinder wall, and designs a unique sampling cylinder openable structure by using the kinematics of grabbing articles by hands for reference. The sampling tube comprises a first half tube body and a second half tube body which are arranged from top to bottom, a first inclined opening is formed in one end of the first half tube body, a second inclined opening is formed in one end of the second half tube body, and the first half tube body and the second half tube body can be opened and closed through the first inclined opening and the second inclined opening. After gathering soil sample, the exogenic action transmits this exogenic force to first half barrel and the half barrel of second on the pressure disk for first half barrel and the automatic opening of the half barrel of second acquire the soil sample of gathering smoothly.

Compared with the prior art, the utility model have following advantage:

1. this soil sampling ware reasonable in design, it is with low costs, through setting up half barrel of first barrel that has first slope open-ended and half barrel of second that has second slope open-ended, realize opening and shutting of sampler barrel under push-and-pull subassembly's effect. Convenient operation among the sampling process, better the pristine condition that has kept soil sample and the integrality of soil, can acquire soil sample smoothly, be convenient for wash the sampling tube moreover, reduce intensity of labour. Set up first locating part in the location section of thick bamboo in this soil sampling ware, it can cooperate with push-and-pull subassembly, first half barrel and the half barrel of second, guarantees stable in structure and simple operation.

2. The soil sampler has the advantages that one end of the first half cylinder body and one end of the second half cylinder body penetrating into soil are designed into the pointed cone ends, so that the soil resistance can be effectively overcome, and the sampling efficiency is improved. The positioning cylinder in the soil sampler adopts a split design, so that the soil sampler is convenient to install and disassemble, and is convenient for later maintenance and cleaning.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of a soil sampler according to the present invention;

fig. 2 shows a schematic external structural view of a soil sampler according to the present invention;

fig. 3 shows a front view of a second half-cylinder according to the invention;

fig. 4 shows a top view of a second half-cylinder according to the present invention;

fig. 5 is a top view of the connection between the pressing plate and the pushing rod according to the present invention;

fig. 6 shows a top view of a fourth half cylinder according to the present invention;

in the figure, 1 is a positioning cylinder; 2 is a sampling tube; 3 is a connecting rod; 4 is a first limiting member; 5 is a first chamber; 6 is a second chamber; 7 is a first half cylinder; 8 is a second half cylinder; 9 is a first inclined opening; 10 is a second inclined opening; 11 is a second limiting part; 12 is a pin hole; 13 is a large-diameter end; 14 is a small diameter end; 15 is a connecting block; 16 is a third inclined opening; 17 is a fourth inclined opening; 18 is an elastic member; 19 is a pressure plate; 20 is a push rod; 21 is a connecting head; 22 is a fixed disc; 23 is a sleeve; 24 is an inclined plane; 25 is a fourth half cylinder; and 26 is a cushion block.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example 1:

the soil sampler shown in figures 1-4 comprises a positioning cylinder 1, a sampling cylinder 2 and a push-pull assembly; a first limiting piece 4 is arranged inside the positioning cylinder 1 to divide an inner cavity of the positioning cylinder 1 into a first cavity 5 and a second cavity 6, one end of the push-pull assembly is movably arranged in the first cavity 5, and the other end of the push-pull assembly passes through the first limiting piece 4 and then is positioned in the second cavity 6; the sampling tube 2 comprises a first half tube body 7 and a second half tube body 8 which are arranged up and down, a first inclined opening 9 is formed in one end of the first half tube body 7, a second inclined opening 10 is formed in one end of the second half tube body 8, the first inclined opening 9 and the second inclined opening 10 are arranged oppositely and are located in the second cavity 6, a swing space which is gradually closed along the central axis of the sampling tube 2 is formed between the first inclined opening 9 and the second inclined opening 10, a second limiting part 11 matched with the first half tube body 7 and the second half tube body 8 is arranged on the inner wall of the second cavity 6, and the first half tube body 7 and the second half tube body 8 are connected with the other end of the push-pull assembly. The swing space is gradually closed along the opening end of the first limiting member 4 to the second cavity 6, that is, the first inclined opening 9 and the second inclined opening 10 are both gradually reduced to be closed along the opening end of the first limiting member 4 to the second cavity 6. The first and second

inclined openings

9 and 10 are arranged such that one end of the first and second half cylinders 7 and 8 can oscillate in the second chamber 6. Under the push of the push-pull assembly, the first inclined opening 9 and the second inclined opening 10 are close to each other, so that the other ends of the first half cylinder 7 and the second half cylinder 8 are opened. The original state of the soil sample and the integrity of the soil sample can be maintained by designing the openable and closable sampling cylinder.

The end faces of the first inclined opening 9 and the second inclined opening 10 are abutted against the first stopper 4. Can guarantee the installation stability of first half barrel 7 and second half barrel 8 through this setting, prevent that it from rocking when gathering soil sample, influence sampling efficiency and sampling effect.

The first semi-cylinder body 7 and the second semi-cylinder body 8 are both provided with pin holes 12 matched with the second limiting piece 11, the pin holes 12 comprise a large-diameter end 13 and a small-diameter end 14 which are distributed along the length direction of the sampling tube 2, wherein the large-diameter end 13 is positioned at the opening end close to the first inclined opening 9 or the second inclined opening 10, and the small-diameter end 14 is far away from the opening end of the first inclined opening 9 or the second inclined opening 10. When the pin is used, the second limiting piece is a columnar protruding block which is equivalent to a plug pin and is inserted into the pin hole. When the sampling cylinder is fixed or penetrates into soil for sampling, the second limiting piece is always positioned at the small-diameter end 14 of the pin hole 12, so that the first half cylinder body 7 and the second half cylinder body 8 are in a closed state; when the push-pull assembly pushes the first half cylinder 7 and the second half cylinder 8, the second limiting member slides from the small-diameter end to the large-diameter end, thereby facilitating the opening of the sampling tube 2. The stability of the first half cylinder 7 and the second half cylinder 8 can be guaranteed through the arrangement, and the opening and closing of the sampling cylinder 2 are realized.

As shown in fig. 1, 3 and 4, the inner walls of one ends of the first half cylinder 7 and the second half cylinder 8 are respectively provided with a connecting block 15, and the two connecting rods 3 are respectively connected with the connecting blocks 15 correspondingly. Through setting up connecting block 15, be convenient for connecting rod 3 and first half barrel 7 or the half barrel 8 of second are connected, can effectively control the swing angle of first slope opening 9 and second slope opening 10, realize opening and shutting of first half barrel 7 and the half barrel 8 of second. When the connecting rod 3 is made of rigid material, the connecting rod cannot deform in the pushing and pulling process of the pressure plate 19, and two ends of the connecting rod 3 are respectively hinged with the connecting block 15 and the connecting head 21. When the connecting rod 3 is made of elastic material, such as spring steel, it can deform during the pushing and pulling process of the pressure plate 19, and the two ends of the connecting rod 3 are respectively fixedly connected with the connecting block 15 and the connecting head 21.

As shown in fig. 1, 3 and 4, the other end of the first half cylinder 7 has a third inclined opening 16, the other end of the second half cylinder 8 has a fourth inclined opening 17, and the third inclined opening 16 and the fourth inclined opening 17 are oppositely arranged to form a pointed end. The included angle between the third inclined opening 16 and the fourth inclined opening 17 and the horizontal direction is 15 degrees, and by arranging the pointed cone ends, the soil resistance in the sample process can be effectively overcome, so that the sampling is smoothly carried out.

As shown in fig. 1 and 5, the push-pull assembly comprises a transmission piece, an elastic piece 18 and a connecting rod 3; one end of the transmission member is movably arranged in the first cavity 5, the other end of the transmission member passes through the first limiting member 4 and then is located in the second cavity 6, and is respectively connected with the first half cylinder 7 and the second half cylinder 8 through the connecting rod 3, the elastic member 18 is sleeved on the periphery of the transmission member, one end of the elastic member 18 is abutted to the transmission member, and the other end of the elastic member 18 is abutted to the first limiting member 4.

The transmission piece comprises a pressure plate 19, a push rod 20 and a connector 21; the pressure plate 19 is movably arranged in the first cavity 5, one end of the push rod 20 is connected with the pressure plate 19, the other end of the push rod 20 penetrates through the first limiting part 4 and then is located in the second cavity 6, the connector 21 is installed at the other end of the push rod 20, and the connector 21 is connected with the first half cylinder 7 and the second half cylinder 8 through the connecting rod 3 respectively. The elastic member 18 is a spring, and the opening and closing of the first half cylinder 7 and the second half cylinder 8 are controlled by the acting force between the spring and the pressure plate 19. An outward pushing force acts on the pressure plate 19, the first half cylinder 7 and the second half cylinder 8 are driven to move towards the outside of the second chamber 6 by pushing the pressure plate 19, and meanwhile the first inclined opening 9 and the second inclined opening 10 are close to each other, so that the sampling cylinder 2 outside the second chamber 6 is opened, and a soil sample is conveniently obtained. After the external thrust disappears, under the action of the elastic member 18, the pressure plate returns to the original position, so as to drive the first half cylinder 7 and the second half cylinder 8 to retract into the second chamber 6, and simultaneously, the first inclined opening 9 and the second inclined opening 10 are far away from each other, so that the sampling cylinder 2 outside the second chamber 6 is closed.

The locating cylinder 1 comprises a fixed disc 22 and a sleeve 23 with two open ends, a first limiting part 4 is arranged inside the sleeve 23 to divide an inner cavity of the sleeve 23 into a first cavity 5 and a second cavity 6, the fixed disc 22 is installed on the periphery of the open end of the first cavity 5, the fixed disc 22 is provided with bolt holes, and the inner diameter of the open end of the second cavity 6 is gradually increased from inside to outside. The sampler is fixed on the sampling carrier through the fixed disc 22, so that the application range of the sampler is widened. The internal diameter of 6 open ends of second chamber increases progressively from inside to outside to make the open end of second chamber 6 be the inclined plane 24 of opening crescent, the first half barrel 7 of being convenient for and the outside swing of the half barrel 8 of second realize opening and shutting of sampler barrel 2. The sleeve 23 is provided with a through hole for connecting the connector 21 with the connecting rod 3.

Also includes a cushion block 26; one side of the first limiting piece 4 close to the second cavity 6 is provided with a concave portion and a convex portion which are distributed in a step shape, wherein the concave portion is close to the inner wall of the second cavity 6, the cushion block 26 is arranged on the inner wall of the second cavity 6 and close to the concave portion of the first limiting piece 4, and the first inclined opening 9 and the second inclined opening 10 are respectively abutted to the corresponding convex portion and the cushion block 26. Can improve the installation stability of first half barrel 7 and second half barrel 8 in second cavity 6 through setting up cushion 26, prevent that it from taking place to rock when the sample of ingrowing and influence the sample effect, can also effectively control the interval between first slope opening 9 and the second slope opening 10 to realize the closure of sampler barrel 2.

As shown in fig. 6, the first limiting member 4 is a semi-annular protruding block, and the second limiting member 11 is a columnar protruding block. By adopting the design, the first limiting part 4 and the second limiting part 11 are simple in structure and convenient to process.

When in specific use: the first half cylinder 7 and the second half cylinder 8 are arranged in the second chamber, the connecting rod 3 is connected with the connecting head 21 through the through hole, and the fixed disc 22 is connected with the sampling carrier. During sampling, the pointed cone end of the sampling cylinder 2 penetrates into soil, and the second limiting part 11 is located at the small-diameter end of the pin hole 12, so that the closed state of the first half cylinder body 7 and the second half cylinder body 8 is guaranteed. When the sampling tube 2 is penetrated to a predetermined depth, after a soil sample is obtained, the sampling tube is lifted upwards to a predetermined position, external force acts on the pressure plate 19, so that the connecting rod 3 is pushed to drive the first half cylinder 7 and the second half cylinder 8 to move outwards, the first inclined opening 9 and the second inclined opening 10 are gradually close to each other while the second limiting part 11 moves towards the large-diameter end 13, and the part of the sampling tube 2, which is positioned outside the second cavity 6, is gradually opened to obtain a complete soil sample. After the external force disappears, under the action of the elastic part 18, the pressure plate 19, the connecting rod 3, the first half cylinder 7, the second half cylinder 8 and the like are restored to the original state to prepare for next sampling.

Example 2:

the present example is the same as example 1 except for the following technical features:

as shown in fig. 1 and 6, a location section of thick bamboo 1 includes fixed disk 22 and both ends open-ended sleeve 23, sleeve 23 includes the half barrel of third and the half barrel 25 of fourth that set up from top to bottom, fixed disk 22 is the semicircular in shape, fixed disk 22 is all installed to the periphery of the half barrel of third and the half barrel 25 one end of fourth, the internal diameter of the other end of the half barrel of third and the half barrel 25 of fourth is from inside to outside progressively increased up. The sampler is fixed on the sampling carrier through the fixed disc 22, so that the application range of the sampler is widened. The internal diameter of the other end of the third half cylinder and the fourth half cylinder 25 gradually increases from inside to outside, so that the other end of the third half cylinder and the fourth half cylinder 25 forms an inclined plane 24 with gradually increasing opening, the first half cylinder 7 and the second half cylinder 8 can swing outwards conveniently, and the opening and closing of the sampling cylinder 2 are realized.

During the specific use, will half first barrel 7 and half second barrel 8 amalgamate earlier, install half third barrel and half fourth barrel 25 in half first barrel 7 and half second barrel 8's the outside respectively again for the second locating part is located the path end of pinhole 12, and first slope opening 9 and second slope opening 10 all with first locating part butt, pass through the bolt hole with two fixed disks 22 again and fix on the sampling carrier, accomplish the installation promptly.

The above-mentioned specific implementation is the preferred embodiment of the present invention, can not be right the utility model discloses the limit, any other does not deviate from the technical scheme of the utility model and the change or other equivalent replacement modes of doing all contain within the scope of protection of the utility model.

Claims

1. A soil sampler, its characterized in that: comprises a positioning cylinder, a sampling cylinder and a push-pull component; a first limiting piece is arranged inside the positioning cylinder to divide an inner cavity of the positioning cylinder into a first cavity and a second cavity, one end of the push-pull assembly is movably arranged in the first cavity, and the other end of the push-pull assembly passes through the first limiting piece and then is positioned in the second cavity; the sampling tube comprises a first half tube body and a second half tube body which are arranged up and down, a first inclined opening is formed in one end of the first half tube body, a second inclined opening is formed in one end of the second half tube body, the first inclined opening and the second inclined opening are oppositely arranged and are both located in a second cavity, a swing space which is gradually closed along the central axis of the sampling tube is formed between the first inclined opening and the second inclined opening, a second limiting part matched with the first half tube body and the second half tube body is arranged on the inner wall of the second cavity, and the first half tube body and the second half tube body are both connected with the other end of the push-pull assembly.

2. The soil sampler of claim 1, wherein: the first semi-cylinder body and the second semi-cylinder body are both provided with pin holes matched with the second limiting parts, and the pin holes comprise large-diameter ends and small-diameter ends which are distributed along the length direction of the sampling cylinder.

3. The soil sampler of claim 1, wherein: the inner walls of one ends of the first half cylinder body and the second half cylinder body are respectively provided with a connecting block, and the other ends of the push-pull assemblies are respectively connected with the connecting blocks correspondingly.

4. The soil sampler of claim 1, wherein: the other end of the first half cylinder body is provided with a third inclined opening, the other end of the second half cylinder body is provided with a fourth inclined opening, and the third inclined opening and the fourth inclined opening are oppositely arranged to form a pointed conical end.

5. The soil sampler of claim 1, wherein: the end faces of the first inclined opening and the second inclined opening are abutted to the first limiting piece.

6. The soil sampler of claim 1, wherein: the push-pull assembly comprises a transmission part, an elastic part and a connecting rod; the one end of driving medium is movably set up in first cavity, and its other end passes and lies in the second cavity behind the first locating part to be connected with first half barrel and the half barrel of second respectively through the connecting rod, the periphery of driving medium is located to the elastic component cover, just the one end and the driving medium butt of elastic component, the other end and the first locating part butt of elastic component.

7. The soil sampler of claim 6, wherein: the transmission part comprises a pressure plate, a push rod and a connector; the pressure disk is movably arranged in the first cavity, one end of the push rod is connected with the pressure disk, the other end of the push rod penetrates through the first limiting part and then is located in the second cavity, the connector is installed at the other end of the push rod, and the connector is connected with the first half cylinder and the second half cylinder through the connecting rod respectively.

8. The soil sampler of claim 1, wherein: the utility model discloses a positioning cylinder, including the fixed disk, both ends open-ended sleeve, telescopic inside is provided with first locating part to separate into first cavity and second cavity with telescopic inner chamber, the fixed disk is installed in the periphery of first cavity open end, the fixed disk is opened there is the bolt hole, the internal diameter of second cavity open end increases progressively from inside to outside.

9. The soil sampler of claim 8, wherein: the sleeve includes half barrel of third and the half barrel of fourth that sets up from top to bottom, the fixed disk is the semicircular, the fixed disk is all installed to the periphery of half barrel of third and half barrel of fourth one end, the internal diameter of the other end of half barrel of third and half barrel of fourth gradually increases progressively from inside to outside.

10. The soil sampler of claim 1, wherein: also comprises a cushion block; one side of the first limiting piece, which is close to the second cavity, is provided with a concave part and a convex part which are distributed in a step mode, the cushion block is arranged on the inner wall of the second cavity and close to the concave part of the first limiting piece, and the first inclined opening and the second inclined opening are respectively abutted to the corresponding convex part and the cushion block.