CN113865930A

CN113865930A - Soil sampling device for geological survey

Info

Publication number: CN113865930A
Application number: CN202111357368.XA
Authority: CN
Inventors: 焦裕敏; 王石; 王国瑞
Original assignee: Shandong Institute of Geological Surveying and Mapping
Current assignee: Shandong Institute of Geological Surveying and Mapping
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2021-12-31
Anticipated expiration: 2041-11-16
Also published as: CN113865930B

Abstract

The invention discloses a soil sampling device for geological exploration, and belongs to the technical field of geological exploration. The utility model provides a soil sampling device for geological survey, includes the fixing base, screw thread seat outer wall lower extreme is annular equidistant for the position of gear and has set firmly a plurality of tooth posts, it runs through and is equipped with the spliced pole to remove a seat left part, the spliced pole outer wall is annular equidistant structure for the position of gear and has seted up a plurality of tooth's sockets, the spliced pole middle part is run through and has been seted up and has rotated the groove, it is equipped with the rotation post to rotate the inslot portion, it has set firmly the fixed axle to rotate the capital face right part, the outside cover of fixed axle is equipped with the switching piece, the switching piece front end is equipped with the hydraulic stem admittedly, the spliced pole below is equipped with the sampling subassembly. The invention can not only improve the pertinence of the sample, but also ensure the integrity of the obtained sample, so that the worker can know the distribution of the soil layers more closely to the reality while surveying the geological condition accurately, and the practicability is strong.

Description

Soil sampling device for geological survey

Technical Field

The invention relates to the technical field of geological exploration, in particular to a soil sampling device for geological exploration.

Background

The geological exploration is to survey and detect geology by various means and methods, determine a proper bearing stratum, determine a foundation type according to the foundation bearing capacity of the bearing stratum, calculate the investigation and research activities of foundation parameters, find an industrially significant mineral deposit in the mineral product general survey, provide mineral product reserves and geological data required by mine construction design for finding out the quality and quantity of the mineral product and the technical conditions of exploitation and utilization, carry out investigation and research work on geological conditions such as rocks, stratums, structures, mineral products, hydrology, landforms and the like in a certain area, and in the development process of the geological exploration work, a worker needs to sample the soil in each area and immediately judge the distribution depth of the geological structure and the soil resources in the area.

In the prior art, CN102353557A is a cylindrical soil layering device, which is composed of a soil sampler and a soil sample profile layering sampler. The soil sample profile stratified sampling device of the columnar soil stratified device provided by the invention is ingenious in design, simple in structure and convenient to use. The columnar soil layering device provided by the invention can be used for uniformly and accurately layering the soil column collected by the sampler, and can be used for sampling in loose soil with difficult sample forming; the soil sampler is provided with a plurality of sampling box chambers, so that the soil samples can be finely layered, and a plurality of samples can be simultaneously sampled to realize in-situ sampling; sampling box volume and weight are certain, make things convenient for the survey of soil sample unit weight, but it is only applicable to the comparatively soft layering of drawing sample and need set up a plurality of sampling boxes.

In addition, through the retrieval, publication number CN112014146A discloses a soil sampling device and application method for geological survey, through the soil sampling section of thick bamboo that sets up, auger delivery pole, baffle, slider, fixing base (1), fixture block and clearance harrow, when the staff need get the soil of the different degree of depth, the staff can insert the soil of appointed degree of depth into the soil sampling section of thick bamboo, then carry the inboard of soil sampling section of thick bamboo through one of them transport auger stem to soil, then insert another degree of depth into the soil sampling section of thick bamboo again, send the inboard of soil sampling section of thick bamboo with another transport auger stem to soil, thereby realize once getting the soil of the different degree of depth.

Although the existing device achieves the purpose of depth-fixed sampling, the screw conveying rod is driven by the first motor to achieve the sampling effect, so that the obtained soil sample is scattered, the sample obtained by a worker is a mixed sample of soil with corresponding depth, the integrity is lacked, the soil level of the area cannot be accurately judged, and the height of the device is fixed, so that the obtaining work of the soil sample with deeper depth is difficult to carry out, the flexibility is low, and the geological exploration work of the worker is not facilitated;

in view of this, we propose a soil sampling device for geological exploration.

Disclosure of Invention

1. Technical problem to be solved

The present invention is directed to a soil sampling device for geological exploration, which solves the above problems of the prior art.

2. Technical scheme

A soil sampling device for geological exploration comprises a fixed seat, wherein a hollow cavity is formed in the fixed seat, a through groove is formed in the left portion of the fixed seat, a threaded rod is fixedly arranged at the right portion of the cavity, a moving seat is arranged at the upper portion of the cavity, a threaded seat is arranged above the right side of the moving seat in a penetrating mode, a motor is fixedly arranged in the middle of the top surface of the moving seat, the output end of the motor penetrates through the top surface of the moving seat to extend to the lower portion of the moving seat and is coaxially and fixedly connected with a gear, a plurality of tooth posts are fixedly arranged at the lower end of the outer wall of the threaded seat in an annular equidistant mode relative to the position of the gear, a connecting post is arranged at the left portion of the moving seat in a penetrating mode, a plurality of tooth grooves are formed in the outer wall of the connecting post in an annular equidistant mode relative to the position of the gear, a rotating groove is formed in the middle portion of the connecting post in a penetrating mode, a rotating post is arranged in the rotating groove, and a fixed shaft is fixedly arranged at the right portion of the top surface of the rotating post, the outside cover of fixed axle is equipped with the switching piece, the switching piece front end is equipped with the hydraulic stem admittedly, the spliced pole below is equipped with sampling component.

Preferably, remove seat and cavity sliding fit, the screw thread seat lower extreme runs through to remove a top surface and extends to the lower part and rotate with removing the seat and be connected, the screw thread seat is located same axis and threaded connection with the threaded rod, the gear is connected with the tooth post meshing, the spliced pole lower extreme runs through to remove a top surface and extends to the lower part and rotate with removing the seat and be connected, the gear is connected with the tooth's socket meshing.

Preferably, the rotating column and the rotating groove are both in a Chinese character 'zhong' shaped structure, the rotating column is in rotating fit with the rotating groove, the switching block is rotatably connected with the fixed shaft, and the rear end of the hydraulic rod extends to the front side of the top surface of the connecting column and is hinged to the top surface of the connecting column.

Preferably, the sampling subassembly is including a plurality of thief rods that are linear equidistant structure and set up, thief rod diameter size equals with spliced pole diameter size, is located the downside the thief rod below is equipped with the drill bit, the drill bit lower part is radius platform structure, drill bit outer wall lower part has set firmly broken tooth, broken tooth is the heliciform structure of transversal personally submitting the triangular prism.

Preferably, it is a plurality of equal coaxial fixedly connected with outer loop in sample thief rod bottom surface edge and spliced pole bottom surface edge, it is a plurality of annular has all been seted up for the position of outer loop in sample thief rod top surface edge and drill bit top surface edge, the cooperation of pegging graft of outer loop and annular, outer loop lateral side is the equidistant structure of annular and is equipped with a plurality of cross screws, the cross screw lateral wall is the cambered surface structure that radian and outer loop outer wall radian are the same.

Preferably, the screw has all been seted up for the position of cross screw to outer loop outer wall and annular inner wall, is located the lateral side the screw is T type structure, cross screw and screw threaded connection, the equal coaxial sample groove of having seted up in sample thief rod middle part and drill bit middle part, the sample groove is big end down's T type structure, the equal coaxial fixedly connected with inner ring of thief rod top surface and drill bit top surface, the cooperation of pegging graft of inner ring and sample groove lower part.

Preferably, the bottom surface of the connecting column is provided with a bottom groove relative to the position of the inner ring, the inner ring positioned at the uppermost side is in inserting fit with the bottom groove, the lower side of the inside of the sampling rod is provided with a circular cavity relative to the position above the inner ring, the inside of the circular cavity is provided with a plurality of partition plates in an annular equidistant structure relative to the position outside the sampling groove, and the partition plates are of a quarter-cylinder structure.

Preferably, a guide block is fixedly arranged at the bottom surface of the circular cavity relative to the middle of the bottom surface of the partition plate, a guide groove is formed in the bottom surface of the partition plate relative to the guide block, the guide block is in sliding fit with the guide groove, an extrusion groove is formed in one side of the top surface of the partition plate, an extrusion block is arranged at the inner side end of the extrusion groove, the extrusion block is of a hemispherical structure and is in sliding fit with the extrusion groove, and a rotating ring is fixedly arranged between the top surfaces of the extrusion blocks.

Preferably, a position of the top surface of the circular cavity, which is opposite to the rotary ring, is provided with a limiting groove, the rotary ring is in running fit with the limiting groove, the outer wall of the rotary ring is in an annular equidistant structure, a plurality of shifting plates are fixedly arranged, a position of the interior of the sampling rod, which is opposite to the shifting plates, is provided with a plate groove, the shifting plates are in an i-shaped arc block structure, the plate groove is in an h-shaped annular structure with one-eighth radian, and the shifting plates are in running fit with the plate groove.

Preferably, dial the board top and be equipped with the dead lever, the dead lever is H type structure, dial about the board both sides outer wall and spliced pole bottom surface and all seted up the pole groove for the position of dead lever, both ends respectively with rather than adjacent upper and lower two about the dead lever the cooperation of pegging graft in pole groove, dead lever both sides outer wall all is upper and lower symmetrical structure and has set firmly two joint pieces, the joint groove has been seted up for the position of joint piece to pole inslot wall, joint piece and joint groove joint cooperation.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

1. the soil sample sampling device is provided with the sampling assembly, a worker can insert the sampling assembly into soil through the movement of the movable seat, and the sampling assembly can collect soil samples in a depth-fixed and layered manner through the driving of the fixed shaft and the rotating column by the hydraulic rod, so that the pertinence of the samples can be improved, the integrity of the obtained samples can be guaranteed, the worker can know the distribution of the soil layers more closely to the reality while accurately surveying the geological conditions, and the soil sample sampling device is high in practicability.

2. The sampling device is provided with the connecting column, the rotating column, the sampling rods, the drill bit and the fixing rod, a plurality of shifting plates can be sequentially connected and finally connected and fixed on the rotating column through the fixing rod when a worker uses the sampling device, and on the other hand, the connection and the fixation of the plurality of sampling rods can be achieved through the insertion fit of the outer ring and the annular groove and the insertion fit of the inner ring and the lower part of the collecting groove, so that the sampling assembly of the sampling device can flexibly adapt to the depth requirement of sampling work, and samples at various depth levels can be stored in different categories easily under the design of the detachable sampling rods, so that the purity of the samples is improved, and the sampling device can obtain the samples at once.

3. The soil breaking device is provided with the gear, the tooth socket and the tooth column, and a worker can rotate the gear by using the motor, so that the drill bit and the breaking teeth can rotate to break soil, and simultaneously can move downwards at a constant speed under the threaded connection of the threaded seat and the threaded rod.

Drawings

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

FIG. 2 is a front sectional view of the fixing base of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a cross-sectional structural view of the connecting column of the present invention;

FIG. 5 is a schematic view of a sample rod according to the present invention;

FIG. 6 is a schematic top sectional view of a sampling rod according to the present invention;

FIG. 7 is an exploded view of the swivel, the dial plate and the fixing rod of the present invention;

FIG. 8 is a schematic exploded view of the drill bit of the present invention;

fig. 9 is a schematic sectional structure view of the rotating column of the present invention.

The reference numbers in the figures illustrate: 1. a fixed seat; 2. a cavity; 3. a through groove; 4. a threaded rod; 5. a movable seat; 6. a threaded seat; 7. an electric motor; 8. a gear; 9. a tooth post; 10. connecting columns; 11. a tooth socket; 12. a rotating groove; 13. rotating the column; 14. a fixed shaft; 15. a transfer block; 16. a hydraulic lever; 17. a sampling assembly; 18. a sampling rod; 19. a drill bit; 20. breaking soil teeth; 21. an outer ring; 22. a ring groove; 23. a cross screw; 24. a screw hole; 25. a sampling groove; 26. an inner ring; 27. a bottom groove; 28. a circular cavity; 29. dividing the plate; 30. a guide block; 31. a guide groove; 32. extruding a groove; 33. extruding the block; 34. rotating the ring; 35. a limiting groove; 36. dialing a plate; 37. a plate groove; 38. fixing the rod; 39. a rod groove; 40. a clamping block; 41. a clamping groove.

Detailed Description

Referring to fig. 1-9, the present invention provides a technical solution:

a soil sampling device for geological exploration comprises a fixed seat 1, a hollow cavity 2 is formed in the fixed seat 1, a through groove 3 is formed in the left portion of the fixed seat 1, a threaded rod 4 is fixedly arranged at the right portion of the cavity 2, a moving seat 5 is arranged at the upper portion of the cavity 2, a threaded seat 6 is arranged above the right side of the moving seat 5 in a penetrating mode, a motor 7 is fixedly arranged in the middle of the top surface of the moving seat 5, the output end of the motor 7 extends to the lower portion through the top surface of the moving seat 5 and is coaxially and fixedly connected with a gear 8, a plurality of tooth posts 9 are fixedly arranged at annular equal intervals at the lower end of the outer wall of the threaded seat 6 relative to the position of the gear 8, a connecting post 10 is arranged at the left portion of the moving seat 5 in a penetrating mode, a plurality of tooth grooves 11 are formed in the outer wall of the connecting post 10 relative to the position of the gear 8 in an annular equal interval mode, a rotating groove 12 is formed in the middle portion of the connecting post 10 in a penetrating mode, a rotating post 13 is fixedly arranged at the right portion of the top surface of the rotating post 13, the outside of the fixed shaft 14 is sleeved with a switching block 15, the front end of the switching block 15 is fixedly provided with a hydraulic rod 16, and a sampling assembly 17 is arranged below the connecting column 10.

Specifically, remove

seat

5 and 2 sliding fit of cavity, 6 lower extremes of screw thread seat run through and remove 5 top surfaces of seat and extend to the lower part and with remove 5 rotations of seat and be connected, screw thread seat 6 and threaded rod 4 are located same axis and threaded connection, gear 8 is connected with the meshing of tooth post 9, and the spliced pole 10 lower extreme runs through and removes 5 top surfaces of seat and extend to the lower part and with remove 5 rotations of seat and be connected, gear 8 and the meshing of tooth's socket 11 are connected.

Furthermore, the rotating column 13 and the rotating groove 12 are both in a Chinese character 'zhong' shape, the rotating column 13 is in rotating fit with the rotating groove 12, the switching block 15 is rotatably connected with the fixed shaft 14, and the rear end of the hydraulic rod 16 extends to the front side of the top surface of the connecting column 10 and is hinged to the top surface of the connecting column 10.

Furthermore, the sampling assembly 17 comprises a plurality of sampling rods 18 arranged in a linear equidistant structure, the diameter of each sampling rod 18 is equal to that of the connecting column 10, a drill bit 19 is arranged below the sampling rod 18 at the lowest side, the lower part of the drill bit 19 is of an inverted circular truncated cone structure, a ground breaking tooth 20 is fixedly arranged at the lower part of the outer wall of the drill bit 19, the ground breaking tooth 20 is of a spiral structure with a triangular prism cross section, when a worker obtains a soil sample for geological exploration, the worker can move the device to a position to be sampled, the sampling assembly 17 in the device corresponds to a selected sampling point, the motor 7 is further used for driving the gear 8 to rotate, the threaded seat 6 and the connecting column 10 in the device respectively rotate under the meshing connection of the gear 8 and the tooth column 9 and the meshing connection of the gear 8 and the tooth groove 11 when the gear 8 rotates, and the sampling assembly 17 can also move downwards at the same time of rotating, and with the arrangement of the drill bit 19 and the ground breaking teeth 20 in the sampling assembly 17, the sampling assembly 17 can be more easily drilled into the ground.

Still further, 18 bottom surface edges of a plurality of thief rods and the equal coaxial fixedly connected with outer loop 21 in spliced pole 10 bottom surface edge, annular 22 has all been seted up for outer loop 21's position in 18 top surface edges of a plurality of thief rods and 19 top surface edges of drill bit, outer loop 21 pegs graft with annular 22 and cooperates, outer loop 21 lateral side is the equidistant structure of annular and is equipped with a plurality of cross screws 23, cross screw 23 lateral wall is the cambered surface structure that radian and outer loop 21 outer wall radian are the same.

Furthermore, the outer wall of the outer ring 21 and the inner wall of the ring groove 22 are provided with screw holes 24 corresponding to the cross screws 23, the screw holes 24 on the outer side are T-shaped structures, the cross screws 23 are in threaded connection with the screw holes 24, the middle parts of the sampling rod 18 and the drill 19 are coaxially provided with sampling grooves 25, the sampling grooves 25 are T-shaped structures with small upper parts and large lower parts, the top surfaces of the sampling rod 18 and the drill 19 are coaxially and fixedly connected with inner rings 26, the inner rings 26 are in inserting fit with the lower parts of the sampling grooves 25, when the uppermost sampling rod 18 in the sampling assembly 17 is submerged under the ground, a worker can judge whether to start the collection operation of the sample according to the requirement of the sampling depth, if the depth does not reach the predetermined standard, the cross screws 23 can be screwed out by using an external screwdriver from the outer side wall of the outer ring 21 on the uppermost side, so that the connecting column 10 is disconnected from the uppermost sampling rod 18, the worker only needs to operate the motor 7 to rotate reversely, the movable base 5 can be lifted up, and then a new sampling rod 18 is added between the uppermost sampling rod 18 and the connecting column 10, when the new sampling rod 18 is installed, the worker needs to firstly insert a plurality of fixing rods 38 into a rod groove 39 positioned at the upper side along the top surface of the uppermost sampling rod 18 and the top surface of the newly added sampling rod 18, under the clamping matching of a clamping block 40 and a clamping groove 41, the fixing columns are connected and fixed with the upper ends of corresponding shifting plates 36, at the moment, the newly added sampling rod 18 can be connected with the original uppermost sampling rod 18 along the positions where an inner ring 26 is in a splicing matching with a sampling groove 25 and an outer ring 21 is in a splicing matching with a ring groove 22, before splicing, the worker needs to pay attention to the rod groove 39 positioned at the bottom surface of the shifting plate 36 to correspond to the upper part of the lower fixing rod 38, so that the fixing rods 38 can connect and fix the upper and lower shifting plates 36 at the same position, wait to insert and to twist into cross screw 23 again after accomplishing and can accomplish the connection of two thief rods 18 fixed, newly add the fixed operation that also can follow the same principle of being connected between the most superior thief rod 18 and the spliced pole 10, through such design staff alright let the required degree of depth of taking a sample of length adaptation of this device sampling component 17 completely.

Still further, the bottom surface of the connecting column 10 is provided with a bottom groove 27 corresponding to the position of the inner ring 26, the inner ring 26 located at the uppermost side is in inserting fit with the bottom groove 27, the lower side inside the sampling rod 18 is provided with a circular cavity 28 corresponding to the position above the inner ring 26, the inside of the circular cavity 28 is provided with a plurality of partition plates 29 in an annular equidistant structure corresponding to the position outside the sampling groove 25, and the partition plates 29 are in a quarter-cylinder structure.

It is worth introducing that a guide block 30 is fixedly arranged at the bottom surface of the circular cavity 28 relative to the middle part of the bottom surface of the partition plate 29, a guide groove 31 is formed at the bottom surface of the partition plate 29 relative to the guide block 30, the guide block 30 is in sliding fit with the guide groove 31, an extrusion groove 32 is formed at one side of the top surface of the partition plate 29, an extrusion block 33 is arranged at the inner side end of the extrusion groove 32, the extrusion block 33 is of a hemispherical structure, the extrusion block 33 is in sliding fit with the extrusion groove 32, and a rotating ring 34 is fixedly arranged between the top surfaces of the extrusion blocks 33.

It is worth to be noted that, a position of the top surface of the circular cavity 28 corresponding to the rotary ring 34 is provided with a limiting groove 35, the rotary ring 34 is rotationally matched with the limiting groove 35, the outer wall of the rotary ring 34 is provided with a plurality of shifting plates 36 in an annular equidistant structure, a position of the interior of the sampling rod 18 corresponding to the shifting plates 36 is provided with a plate groove 37, the shifting plates 36 are in an i-shaped arc block structure, the plate groove 37 is in an h-shaped annular structure with one eighth of a circular arc, and the shifting plates 36 are rotationally matched with the plate groove 37.

It should be noted that the fixing rod 38 is disposed above the shifting board 36, the fixing rod 38 is of an H-shaped structure, the outer walls of the upper and lower sides of the shifting board 36 and the bottom surface of the connecting column 10 are respectively provided with a rod groove 39, the upper and lower ends of the fixing rod 38 are respectively in inserting fit with the upper and lower adjacent rod grooves 39, the outer walls of the two sides of the fixing rod 38 are respectively provided with two clamping blocks 40 in an up-down symmetrical structure, the inner wall of the rod groove 39 is provided with a clamping groove 41 in a position corresponding to the clamping block 40, the clamping block 40 is in clamping fit with the clamping groove 41, after the worker calculates the position of the drill bit 19 and drills to a specified depth, the fixing shaft 14 can be driven to move by the extension of the hydraulic rod 16, because the fixing shaft 14 is fixedly connected with the rotating column 13, the rotating column 13 is rotatably fitted with the rotating groove 12, and the lower portion of the rotating column 13 is connected with the shifting boards 36 through the fixing rod 38, thus, during extension of hydraulic rod 16, hydraulic rod 16 changes its angle to adapt its action as rotary column 13 rotates, when the plate is extended to the maximum length, the rotating column 13 drives the shifting plate 36 to rotate to the other end of the plate groove 37, at this time, the plurality of rotating rings 34 are also driven by the plurality of shifting plates 36 to rotate in an eighth radian, and then under the extrusion effect of the extrusion blocks 33 on the bottom surfaces of the rotating rings 34, the plurality of dividing plates 29 in the circular cavity 28 are gathered to the middle part, and because the dividing plates 29 are arranged in a quarter-cylinder structure, the collecting groove and the circular cavity 28 are divided into an upper part and a lower part by taking the boundary as the inner ends of the plurality of dividing plates 29 are gathered, the soil corresponding to the position of the dividing plate 29 is compacted into the soil on both upper and lower sides by the pressing of the dividing plate 29, the corresponding level of soil is thus trapped inside the collection trough of the sampling rod 18 and laterally inside the inner ring 26 of the sampling rod 18.

When a worker obtains a soil sample for geological exploration, the worker can move the device to a position to be sampled, a sampling assembly 17 in the device corresponds to a selected sampling point position, and then the motor 7 is used for driving the gear 8 to rotate, when the gear 8 rotates, the threaded seat 6 and the connecting column 10 in the device respectively rotate under the meshing connection of the gear 8 and the toothed column 9 and the meshing connection of the gear 8 and the toothed groove 11, so that the sampling assembly 17 can rotate and move downwards, and under the arrangement of a drill bit 19 and a soil breaking tooth 20 in the sampling assembly 17, the sampling assembly 17 can more easily dig into the ground, and after a sampling rod 18 positioned at the uppermost side in the sampling assembly 17 also sinks into the ground, the worker can judge whether to start collecting operation of the sample according to the requirement of sampling depth, if the depth does not reach the predetermined standard, the plurality of cross screws 23 can be screwed out from the outer side wall of the uppermost outer ring 21 by using an external screwdriver, so that the connection column 10 is disconnected from the uppermost sampling rod 18, a worker can lift the movable base 5 by operating the motor 7 to rotate reversely and then add a new sampling rod 18 between the uppermost sampling rod 18 and the connection column 10, when installing the new sampling rod 18, the worker needs to insert a plurality of fixing rods 38 into the rod groove 39 positioned at the upper side along the top surface of the uppermost sampling rod 18 and the top surface of the newly added sampling rod 18, the fixing rods are fixedly connected with the upper ends of the corresponding shifting plates 36 under the clamping fit of the clamping blocks 40 and the clamping grooves 41, and at the moment, the new sampling rod 18 can be connected with the original uppermost sampling rod 18 along the positions where the inner ring 26 is in the inserting fit with the sampling groove 25 and the outer ring 21 is in the inserting fit with the ring groove 22, before plugging, a worker needs to pay attention to the fact that a rod groove 39 positioned on the bottom surface of the shifting plate 36 corresponds to the upper portion of a lower fixing rod 38, so that the fixing rod 38 can connect and fix the upper and lower shifting plates 36 at the same position, the cross screw 23 is screwed in after the plugging is completed to complete the connection and fixation of the two sampling rods 18, the connection and fixation between the newly added uppermost sampling rod 18 and the connecting column 10 can also be operated according to the same principle, the worker can enable the length of the sampling assembly 17 of the device to be completely adapted to the required sampling depth through the design, after the worker calculates the position of the drill bit 19 and drills to the designated depth, the fixed shaft 14 can be driven to move by the extension of the hydraulic rod 16, as the fixed shaft 14 is connected and fixed with the rotating column 13, the rotating column 13 is rotationally matched with the rotating groove 12, and the lower portion of the rotating column 13 is connected with the shifting plates 36 which are mutually connected and fixed through the fixing rod 38, therefore, during the extension process of the hydraulic rod 16, the hydraulic rod 16 changes its angle to adapt its action along with the rotation of the rotating column 13, when it extends to the maximum length, the rotating column 13 will drive the shifting plate 36 to rotate to the other end of the plate slot 37, at this time, the rotating rings 34 will also rotate in one eighth of a circular arc under the drive of the shifting plates 36, and then under the squeezing effect of the squeezing blocks 33 on the bottom surface of the rotating rings 34, the dividing plates 29 in the circular cavity 28 will be gathered to the middle, because the dividing plates 29 are arranged in a quarter-cylinder structure, when the inner ends of the dividing plates 29 are gathered together, the collecting slot and the circular cavity 28 will be divided into upper and lower two parts as a boundary, the soil corresponding to the position of the dividing plate 29 will be compacted into the soil on the upper and lower two sides under the squeezing of the dividing plates 29, so that the soil corresponding to the layer is trapped inside the collecting slot of the sampling rod 18 and the inner ring 26 of the sampling rod 18, by the aid of the working personnel, the motor 7 can be operated to rotate reversely to lift the sampling assembly 17 out of the ground, then the sampling rods 18 can be sequentially detached and samples inside the sampling rods can be taken out and stored, the effect of depth-fixed sampling is achieved, and integrity of soil samples can be guaranteed.

Claims

1. The utility model provides a soil sampling device for geological survey, includes fixing base (1), its characterized in that: the hollow cavity (2) is formed in the fixed seat (1), the penetrating groove (3) is formed in the left portion of the fixed seat (1), the threaded rod (4) is fixedly arranged at the right portion of the cavity (2), the moving seat (5) is arranged at the upper portion of the cavity (2), the threaded seat (6) is arranged above the right side of the moving seat (5) in a penetrating mode, the motor (7) is fixedly arranged in the middle of the top surface of the moving seat (5), the output end of the motor (7) penetrates through the top surface of the moving seat (5) and extends to the lower portion of the top surface of the moving seat and is fixedly connected with the gear (8) coaxially, the plurality of tooth posts (9) are fixedly arranged at equal intervals in an annular mode at the lower end of the outer wall of the threaded seat (6) relative to the position of the gear (8), the connecting post (10) is arranged in a penetrating mode at the left portion of the moving seat (5), the outer wall of the connecting post (10) is of an annular equal interval structure relative to the position of the gear (8) and is provided with a plurality of tooth grooves (11), spliced pole (10) middle part is run through and has been seted up and rotate groove (12), it rotates post (13) to rotate inside being equipped with of groove (12), it has fixed axle (14) to rotate post (13) top surface right part to set firmly, fixed axle (14) outside cover is equipped with switching piece (15), switching piece (15) front end is equipped with hydraulic stem (16) admittedly, spliced pole (10) below is equipped with sampling component (17).

2. The soil sampling device for geological survey of claim 1, wherein: remove seat (5) and cavity (2) sliding fit, screw thread seat (6) lower extreme runs through to remove seat (5) top surface and extends to the lower part and rotate with removing seat (5) and be connected, screw thread seat (6) and threaded rod (4) are located same axis and threaded connection, gear (8) are connected with tooth post (9) meshing, spliced pole (10) lower extreme runs through to remove seat (5) top surface and extends to the lower part and rotate with removing seat (5) and be connected, gear (8) are connected with tooth's socket (11) meshing.

3. The soil sampling device for geological survey of claim 1, wherein: rotate post (13) and rotation groove (12) and be well style of calligraphy structure, rotate post (13) and rotation groove (12) normal running fit, adapter block (15) and fixed axle (14) are rotated and are connected, position that hydraulic stem (16) rear end extended to spliced pole (10) top surface front side and articulated with spliced pole (10) top surface.

4. The soil sampling device for geological survey of claim 1, wherein: sampling subassembly (17) are including a plurality of thief rod (18) that are linear equidistant structure and set up, thief rod (18) diameter size equals with spliced pole (10) diameter size, is located the downside thief rod (18) below is equipped with drill bit (19), drill bit (19) lower part is radius platform structure, drill bit (19) outer wall lower part has set firmly broken ground tooth (20), broken ground tooth (20) are the transversal heliciform structure who personally submits the triangular prism.

5. A soil sampling device for geological survey according to claim 4, characterized in that: a plurality of equal coaxial fixedly connected with outer loop (21) in thief rod (18) bottom surface edge and spliced pole (10) bottom surface edge, it is a plurality of thief rod (18) top surface edge and drill bit (19) top surface edge have all seted up annular (22) for the position of outer ring (21), outer ring (21) and annular (22) cooperation of pegging graft, outer ring (21) lateral is the equidistant structure of annular and is equipped with a plurality of cross screw (23), cross screw (23) lateral wall is the arc surface structure that radian and outer ring (21) outer wall radian are the same.

6. A soil sampling device for geological survey according to claim 5, characterized in that: outer ring (21) outer wall and annular (22) inner wall have all seted up screw (24) for the position of cross screw (23), are located outside screw (24) are T type structure, cross screw (23) and screw (24) threaded connection, sample rod (18) middle part and drill bit (19) middle part are all coaxial to have seted up sample groove (25), sample groove (25) are big-end-up's T type structure, equal coaxial fixedly connected with inner ring (26) of sample rod (18) top surface and drill bit (19) top surface, inner ring (26) and sample groove (25) lower part are pegged graft the cooperation.

7. A soil sampling device for geological survey according to claim 6, characterized in that: bottom slot (27) have been seted up for the position of inner ring (26) to spliced pole (10) bottom surface, are located the top inner ring (26) and bottom slot (27) cooperation of pegging graft, round chamber (28) have been seted up for the position of inner ring (26) top to the inside downside of sample rod (18), round chamber (28) are inside to be annular equidistant structure for the position of sample groove (25) lateral side and are equipped with a plurality of partition plates (29), partition plate (29) are quarter cylinder structure.

8. The soil sampling device for geological survey of claim 7, wherein: the round cavity structure is characterized in that a guide block (30) is fixedly arranged at the bottom surface of the round cavity (28) relative to the middle of the bottom surface of the partition plate (29), a guide groove (31) is formed in the bottom surface of the partition plate (29) relative to the guide block (30), the guide block (30) is in sliding fit with the guide groove (31), an extrusion groove (32) is formed in one side of the top surface of the partition plate (29), an extrusion block (33) is arranged at the inner side end of the extrusion groove (32), the extrusion block (33) is of a hemispherical structure, the extrusion block (33) is in sliding fit with the extrusion groove (32), and a rotating ring (34) is fixedly arranged between the top surfaces of the extrusion blocks (33).

9. The soil sampling device for geological survey of claim 8, wherein: the position of the top surface of the round cavity (28) relative to the rotating ring (34) is provided with a limiting groove (35), the rotating ring (34) is in running fit with the limiting groove (35), the outer wall of the rotating ring (34) is in an annular equal-interval structure, a plurality of shifting plates (36) are fixedly arranged, the position of the inner part of the sampling rod (18) relative to the shifting plates (36) is provided with a plate groove (37), the shifting plates (36) are I-shaped arc block structures, the plate groove (37) is in an I-shaped annular structure with one eighth radian, and the shifting plates (36) are in running fit with the plate groove (37).

10. A soil sampling device for geological survey according to claim 9, wherein: dial board (36) top and be equipped with dead lever (38), dead lever (38) are H type structure, dial board (36) upper and lower both sides outer wall and spliced pole (10) bottom surface and all seted up pole groove (39) for the position of dead lever (38), both ends respectively with rather than adjacent upper and lower two about dead lever (38) pole groove (39) cooperation of pegging graft, dead lever (38) both sides outer wall all is upper and lower symmetrical structure and has set firmly two joint pieces (40), joint groove (41) have been seted up for the position of joint piece (40) to pole groove (39) inner wall, joint piece (40) and joint groove (41) joint cooperation.