CN117213911A

CN117213911A - Deep soil sampler

Info

Publication number: CN117213911A
Application number: CN202311475510.XA
Authority: CN
Inventors: 熊静; 郭丽莉; 李博; 韦云霄; 宋倩; 刘伟; 李书鹏
Original assignee: BCEG Environmental Remediation Co Ltd
Current assignee: BCEG Environmental Remediation Co Ltd
Priority date: 2023-11-08
Filing date: 2023-11-08
Publication date: 2023-12-12
Anticipated expiration: 2043-11-08
Also published as: CN117213911B

Abstract

The invention discloses a deep soil sampler, which belongs to the technical field of soil detection and comprises a bottom plate, a soil trowelling drill bit and a sampling tube, wherein a truss is fixedly connected to the upper surface of the bottom plate. According to the invention, through the use of the soil leveling drill bit, loose soil can be extruded and compacted to the periphery when the spiral drill bit drills down, so that the phenomenon that soil samples are mixed and the detection accuracy is affected due to collapse of the soil on the surface layer during deep sampling is avoided, and meanwhile, through the use of the quick-dismantling connection structure, different combined spindles, the combined spindles and the soil leveling drill bit and the combined spindles and the sampling tube can be mutually connected, so that the combined spindles can change the lengths as required to adapt to soil sampling with different depths, and the combined spindles can drive the soil leveling drill bit or the sampling tube to perform different operations.

Description

Deep soil sampler

Technical Field

The invention belongs to the technical field of soil detection, and particularly relates to a deep soil sampler.

Background

In order to reasonably utilize soil resources, protect environment and promote agricultural sustainable development, soil is often required to be detected for evaluating fertility, environment and pH value of the soil, corresponding soil improvement and fertilization schemes can be formulated according to types and characteristics of different soils through soil detection results, and the soil improvement and fertilization scheme is beneficial to improving soil structures, increasing organic matter content and promoting soil biological activity, so that soil quality and crop yield are improved. There are a number of different levels and features of soil in the vertical direction. Deep soil samples can provide more comprehensive soil attribute and composition information, helping to reveal soil vertical variability and its impact on the ecosystem, and thus deep soil sampling can provide more comprehensive and accurate soil attribute and composition information.

When deep soil samples, select the sample point according to the demand earlier, afterwards begin drilling on the sample point through boring accuse system and drill bit, and extend the degree of depth of drilling gradually, until reaching required deep, then collect soil sample through the sampling tube, can select cavity sampling tube or cutting edge's sampling tube as required, soil in the sampling tube is taken out at last, and seal and mark, avoid sample pollution and confusion, but current deep soil sampler is easy because the vibrations of drill bit fall down in the upper strata when drilling, thereby lead to shallow soil and deep soil to mix, influence the accuracy that deep soil detected.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a deep soil sampler.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a deep soil sampler, includes bottom plate, soil screeding drill bit and sampling tube, the upper surface fixedly connected with truss of bottom plate, the upper end fixedly connected with actuating mechanism of truss, it is provided with a plurality of combination formula main shafts to run through in the actuating mechanism, a plurality of through quick detach connection structure fixed connection between the combination formula main shaft, the upper end of soil screeding drill bit and sampling tube is all fixedly connected with second connector, the second square hole has all been seted up on the second connector, the upper surface of bottom plate is provided with stabilizing mean, the upper end fixedly connected with main shaft elevating system of truss, the through-hole has been seted up on the bottom plate;

through the technical scheme, the combined type main shaft can be driven to lift through the main shaft lifting mechanism, the combined type main shaft is driven to rotate through the driving mechanism, the combined type main shaft is driven to descend in a rotating mode to drive the soil trowelling drill bit to drill holes, and the soil trowelling drill bit is replaced by the sampling tube to sample deep soil.

The soil trowelling drill bit comprises a connecting seat fixed at the lower end of a second connector, one end, away from the second connector, of the connecting seat is fixedly connected with a spiral drill bit, the upper end of the connecting seat is slidably connected with a fixed lantern ring, the connecting seat is rotationally connected with a plurality of scrapers around, a plurality of supporting rods are slidably connected in the connecting seat, one end, close to the connecting seat, of the supporting rods is fixedly connected with a limiting plate, one end, away from the supporting rods, of the limiting plate is fixedly connected with a first spring, one end, away from the first spring, of the supporting rods is fixedly connected with a first connecting block, a sliding block penetrates through the first connecting block, one side, close to the connecting seat, of each scraper is provided with a first sliding groove, the upper end and the lower end in each first sliding groove are provided with a second sliding groove, each second sliding groove and each sliding block are in sliding fit, and each first connecting block and each first sliding groove are in sliding fit;

through above-mentioned technical scheme, can be when boring down, jack-up fixed lantern ring through soil, the bracing piece on the first spring promotion limiting plate outwards removes this moment, the bracing piece mutually supports with the second spout through slider on the first connecting block, jack-up the scraper blade, under the drive of combination formula main shaft, the connecting seat drives the scraper blade and rotates, the soil that loosens up when boring down with the auger bit extrudees the compaction all around, avoids the soil on top layer to collapse down when deep sampling, leads to soil sample to mix, influences detection accuracy.

The combined main shaft comprises a shaft body, clamping grooves are formed in two ends of the shaft body, and a plurality of second grooves are formed in the outer wall of the shaft body.

Through the technical scheme, the shaft body can rotate under the drive of the protruding block on the driven gear, and simultaneously can lift and move under the clamping of the main shaft lifting mechanism.

Further, actuating mechanism is including fixing a pair of mount at the truss upper surface, a pair of the one end fixedly connected with spacing ring of truss is kept away from to the mount, the lower extreme rotation of spacing ring is connected with driven gear, first recess has been seted up to driven gear upper surface, first recess and spacing ring sliding fit each other, fixedly connected with a plurality of lugs in the driven gear, the upper surface fixedly connected with frame of truss, the upper surface fixedly connected with motor of frame, the output fixedly connected with pivot of motor, the one end fixedly connected with driving gear of motor is kept away from to the pivot, through sliding connection has the axis body in the driven gear, lug and the mutual sliding fit of second recess.

Through above-mentioned technical scheme, can make the motor drive pivot rotate, the pivot drives the driving gear and rotates, and the driving gear drives driven gear and rotates, and driven gear passes through lug and the rotation of second recess mutually support drive combination formula main shaft, and the main shaft drives soil trowelling drill bit and rotates.

Further, the main shaft elevating system is including running through a pair of first hydraulic stem of fixing in the truss upper end, the lower extreme fixedly connected with fixed plate of first hydraulic stem, the equal fixedly connected with of lower surface both sides of fixed plate is a pair of slide rail, a pair of equal sliding connection has a slip cardboard on the slide rail, the equal fixedly connected with of lower surface both ends of fixed plate is a pair of first connecting plate, a pair of equal fixedly connected with second hydraulic stem on the first connecting plate, the one end fixedly connected with second connecting plate of first connecting plate is kept away from to the second hydraulic stem, second connecting plate and slip cardboard fixed connection, slip cardboard and the mutual block cooperation of draw-in groove.

Through above-mentioned technical scheme, the second hydraulic stem passes through the second connecting plate and promotes slip cardboard along the slide rail inwards to remove, blocks the combination main shaft in vertical direction through slip cardboard card owner draw-in groove, later drives the combination main shaft through first hydraulic stem and reciprocates.

Further, the sampling tube is including fixing the body at the second connector lower extreme, the observation hole has been seted up to one side of body, the body is close to the one end sliding connection of second connector and has the movable block, one side fixedly connected with second connecting block of movable block, the one end fixedly connected with plectrum of movable block is kept away from to the second connecting block, the third recess has been seted up to one side of body, the bar hole has been seted up to the bottom of third recess.

Through above-mentioned technical scheme, can be when inserting soil, leave soil in the body and take a sample, carry out preliminary observation through the observation hole to soil sample when taking out the sampling tube.

Further, the lower extreme fixedly connected with push rod of movable block, the one end fixedly connected with piston that the movable block was kept away from to the push rod, second connecting block and the mutual sliding fit in bar hole, the mutual sliding fit of shifting block and third recess, the lower extreme of body is the chamfer setting, be provided with anti-skidding line on the shifting block.

Through above-mentioned technical scheme, through promoting the shifting block, make the shifting block drive the movable block through the second connecting block and remove, the movable block passes through the push rod and drives the piston and remove, release the soil sample in the sampling tube through the piston.

Further, quick detach connection structure is including fixing the first connector in the axis body upper end, first square hole has been seted up on the first connector, the fourth recess has been seted up to the lower extreme of axis body, the cavity has been seted up to the lower extreme both sides of axis body, the upper end sliding connection of cavity has the sliding block, the one end fixedly connected with second spring that the sliding block is close to the fourth recess, fixedly connected with first cylinder on the sliding block, the one end fixedly connected with button that the second spring was kept away from to the sliding block, the second connector is the same with first connector appearance, the second square hole is the same with first square hole size.

Through the technical scheme, the button can be pressed, so that the sliding block moves inwards, and the sliding block drives the rotating rod to rotate through the first cylinder.

Further, the lower extreme sliding connection of cavity has the fixture block, fixedly connected with second cylinder on the fixture block, the cavity swivelling joint has the dwang, first slotted hole has been seted up to the upper end of dwang, first cylinder and the mutual sliding fit of first slotted hole, the second slotted hole has been seted up to the one end that the dwang kept away from first slotted hole, second slotted hole and the mutual sliding fit of second cylinder.

Through above-mentioned technical scheme, make the dwang drive the fixture block outwards remove through the second cylinder, later insert first connector or second connector in the fourth recess, after loosening the button, the slider returns under the effect of second spring to drive the fixture block return through the dwang, make the fixture block insert first square hole or second square downthehole fixed.

Further, the stabilizing mechanism comprises a conical threaded rod which is connected to the bottom plate through threads, a rotating head is fixedly connected to the upper surface of the conical threaded rod, and a rotating handle is fixedly connected to the rotating head through threads.

Through above-mentioned technical scheme, drive the rotation head through rotating the handle and rotate, the rotation head drives the rotation of taper threaded rod, makes taper threaded rod insert in the soil, and is fixed with the bottom plate.

The beneficial effects of the invention are as follows: (1) According to the invention, the rotating head is driven to rotate through the rotating handle, the rotating head drives the conical threaded rod to rotate, so that the conical threaded rod is inserted into soil, the bottom plate is fixed, the motor in the driving mechanism drives the rotating shaft to rotate, the rotating shaft drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the driven gear drives the combined main shaft to rotate through the mutual matching of the convex block and the second groove, the main shaft drives the soil leveling drill bit to rotate, the soil is perforated, meanwhile, the main shaft lifting mechanism clamps the clamping groove to drive the main shaft to descend, the plurality of main shafts are connected, the soil leveling drill bit can be drilled into the soil deep layer, then the soil leveling drill bit is lifted, the soil leveling drill bit is replaced by a sampling tube, then the main shaft is driven to descend through the main shaft lifting mechanism, deep sampling of the soil is performed, after sampling is completed, the shifting block is driven to move through the second connecting block, the shifting block is driven to move the piston through the pushing rod, the soil sample in the sampling tube is pushed out through the piston without manual pressing, and the labor intensity of operators is greatly reduced; (2) According to the invention, the plurality of scrapers are rotationally connected to the connecting seat in the soil screeding drill bit, when the soil drills down, the fixed lantern ring is propped up by the soil, at the moment, the first spring pushes the supporting rod to move outwards, the supporting rod is mutually matched with the second sliding groove through the sliding block on the first connecting block, the scrapers are propped up, the connecting seat drives the scrapers to rotate under the drive of the combined main shaft, loose soil is extruded and compacted around when the spiral drill bit drills down, and soil sample mixing caused by falling of soil on the surface layer during deep sampling is avoided, and detection accuracy is affected; (3) According to the invention, the quick-release connecting structure is arranged at the joint of the main shafts, the sliding block moves inwards by pressing the button, the sliding block drives the rotating rod to rotate through the first cylinder, the rotating rod drives the clamping block to move outwards through the second cylinder, then the first connector or the second connector is inserted into the fourth groove, after the button is released, the sliding block returns under the action of the second spring, so that the clamping block is driven to return through the rotating rod, the clamping block is inserted into the first square hole or the second square hole, and the combined main shafts, the combined main shaft, the soil leveling drill bit and the combined main shaft and the sampling tube can be connected with each other, so that the length of the combined main shaft can be changed according to requirements, the combined main shaft can adapt to soil sampling with different depths, and the combined main shaft can be conveniently stored.

Drawings

FIG. 1 is an overall block diagram of a deep soil sampler of the present invention;

FIG. 2 is an enlarged view at A of FIG. 1;

FIG. 3 is a driven gear configuration diagram of a deep soil sampler of the present invention;

FIG. 4 is a perspective view of a deep soil sampler of the present invention;

FIG. 5 is an enlarged view at B of FIG. 4;

FIG. 6 is a schematic diagram of a spindle lift mechanism of a deep soil sampler according to the present invention;

FIG. 7 is a schematic view of a combined main shaft of a deep soil sampler according to the present invention;

FIG. 8 is a perspective view of a combined spindle of a deep soil sampler according to the present invention;

FIG. 9 is a sectional view of a combined spindle of a deep soil sampler according to the present invention;

FIG. 10 is an enlarged view at C of FIG. 9;

FIG. 11 is a block diagram of a soil screeding bit of the deep soil sampler of the present invention;

FIG. 12 is a stepped cross-sectional view of a soil screeding bit of a deep soil sampler of the present invention;

fig. 13 is an enlarged view of fig. 12 at D;

FIG. 14 is a cross-sectional view of a soil screeding bit of a deep soil sampler of the present invention;

FIG. 15 is a view showing the construction of a sampling tube of a deep soil sampler according to the present invention;

FIG. 16 is a cross-sectional view of a sampling tube of a deep soil sampler of the present invention.

Reference numerals: 1. a bottom plate; 2. truss; 3. a driving mechanism; 31. a fixing frame; 32. a limiting ring; 33. a driven gear; 34. a bump; 35. a first groove; 36. a frame; 37. a motor; 38. a rotating shaft; 39. a drive gear; 4. a spindle lifting mechanism; 41. a first hydraulic lever; 42. a fixing plate; 43. a slide rail; 44. a sliding clamping plate; 45. a first connection plate; 46. a second hydraulic lever; 47. a second connecting plate; 5. a combined main shaft; 51. a shaft body; 52. a clamping groove; 53. a second groove; 6. soil trowelling drill bit; 61. a connecting seat; 62. a fixed collar; 63. a scraper; 64. a helical drill; 65. a support rod; 66. a limiting plate; 67. a first spring; 68. a first connection block; 69. a slide block; 610. a first chute; 611. a second chute; 7. a sampling tube; 71. a tube body; 72. an observation hole; 73. a piston; 74. a push rod; 75. a moving block; 76. a third groove; 77. a bar-shaped hole; 78. a shifting block; 79. a second connection block; 8. a quick-release connection structure; 81. a first connector; 82. a first square hole; 83. a fourth groove; 84. a cavity; 85. a rotating lever; 86. a first straight slot; 87. a sliding block; 88. a first cylinder; 89. a second spring; 810. a button; 811. a second straight slot; 812. a second cylinder; 813. a clamping block; 9. a stabilizing mechanism; 91. a conical threaded rod; 92. a rotating head; 93. rotating the handle; 10. a through hole; 11. a second connector; 12. and a second square hole.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1, a deep soil sampler of this embodiment includes a bottom plate 1, a soil screeding drill bit 6 and a sampling tube 7, wherein a truss 2 is fixedly connected to the upper surface of the bottom plate 1, a through hole 10 is provided on the bottom plate 1, the truss 2 is integrally provided for fixing, and the through hole 10 is convenient for fixing a sampling site.

As shown in fig. 2, the upper surface of the bottom plate 1 is provided with a stabilizing mechanism 9, the stabilizing mechanism 9 comprises a conical threaded rod 91 which is connected on the bottom plate 1 through a thread, a rotating head 92 is fixedly connected with the upper surface of the conical threaded rod 91, a rotating handle 93 is fixedly connected on the rotating head 92 through a penetration, the rotating head 92 is driven to rotate through the rotating handle 93, and the rotating head 92 drives the conical threaded rod 91 to move downwards in a rotating way, so that the conical threaded rod 91 is inserted into the soil for fixing.

As shown in fig. 3-5, the upper end of the truss 2 is fixedly connected with the driving mechanism 3, the driving mechanism 3 comprises a pair of fixing frames 31 fixed on the upper surface of the truss 2, one end, away from the truss 2, of each fixing frame 31 is fixedly connected with a limiting ring 32, the lower ends of the limiting rings 32 are rotatably connected with driven gears 33, first grooves 35 are formed in the upper surface of the driven gears 33, the first grooves 35 and the limiting rings 32 are in sliding fit with each other, a plurality of protruding blocks 34 are fixedly connected in the driven gears 33, a rack 36 is fixedly connected to the upper surface of the truss 2, a motor 37 is fixedly connected to the upper surface of the rack 36, the output end of the motor 37 is fixedly connected with a rotating shaft 38, one end, away from the motor 37, of each rotating shaft 38 is fixedly connected with a driving gear 39, a shaft body 51 penetrates through the inside the driven gears 33, the protruding blocks 34 are in sliding fit with the second grooves 53, the combined main shaft 5 is inserted into the driven gears 33, the protruding blocks 34 and the second grooves 53 are in one-to-one correspondence, at this time, the motor 37 drives the driving gears 39 to rotate the driven gears 33 through the rotating shafts 34, the driving gears 33, the driving gears 34 drive the combined main shaft 5 to rotate, and the driven gears 33 through the protruding blocks 34 drive the rotating the driving gears 32, the rotating the combined main shaft 5, and the driving gears 32 to rotate, and the combined main shaft 34 through the protruding blocks to rotate the driving gears 32, and the limiting rings 32 to be limited by the limiting rings.

As shown in fig. 6, the upper end of the truss 2 is fixedly connected with the spindle lifting mechanism 4, the spindle lifting mechanism 4 comprises a pair of first hydraulic rods 41 penetrating and fixed at the upper end of the truss 2, the lower ends of the first hydraulic rods 41 are fixedly connected with a fixed plate 42, two sides of the lower surface of the fixed plate 42 are fixedly connected with a pair of sliding rails 43, the sliding rails 43 are fixedly connected with a sliding clamping plate 44, two ends of the lower surface of the fixed plate 42 are fixedly connected with a pair of first connecting plates 45, the first connecting plates 45 are fixedly connected with a second hydraulic rod 46, one ends of the second hydraulic rods 46 far away from the first connecting plates 45 are fixedly connected with a second connecting plate 47, the second connecting plates 47 are fixedly connected with the sliding clamping plates 44, the sliding clamping plates 44 are matched with clamping grooves 52 in a mutually clamping mode, the second hydraulic rods 46 push the sliding clamping plates 44 to move inwards along the sliding rails 43, the main clamping grooves 52 are clamped with the sliding clamping plates 44 in the vertical direction, and the combined spindle 5 can be driven to ascend or descend along with the extension or shortening of the first hydraulic rods 41.

As shown in fig. 11 and 15, the upper ends of the soil leveling drill bit 6 and the sampling tube 7 are fixedly connected with a second connector 11, the second connector 11 is provided with a second square hole 12, the second connector 11 is identical to the first connector 81 in shape, the second square hole 12 is identical to the first square hole 82 in size, and the soil leveling drill bit 6 or the sampling tube 7 can be respectively fixedly connected with the combined main shaft 5 through the second connector 11.

As shown in fig. 7-10, a plurality of combined spindles 5 are arranged in the driving mechanism 3 in a penetrating manner, the combined spindles 5 are fixedly connected through a quick-release connecting structure 8, each combined spindle 5 comprises a spindle body 51, clamping grooves 52 are formed in two ends of the spindle body 51, a plurality of second grooves 53 are formed in the outer wall of the spindle body 51, the driven gears 33 drive the combined spindles 5 to rotate through sliding fit between the second grooves 53 and the protruding blocks 34, and the combined spindles 5 are driven to lift through sliding clamping plates 44 and the clamping grooves 52.

The quick-dismantling connection structure 8 comprises a first connection head 81 fixed at the upper end of the shaft body 51, a first square hole 82 is formed in the first connection head 81, a fourth groove 83 is formed in the lower end of the shaft body 51, cavities 84 are formed in two sides of the lower end of the shaft body 51, the upper ends of the cavities 84 are slidably connected with sliding blocks 87, one ends, close to the fourth groove 83, of the sliding blocks 87 are fixedly connected with second springs 89, first cylinders 88 are fixedly connected onto the sliding blocks 87, one ends, far away from the second springs 89, of the sliding blocks 87 are fixedly connected with buttons 810, the buttons 810 are pressed, the sliding blocks 87 move inwards, and the sliding blocks 87 are matched with the first straight groove holes 86 through the first cylinders 88 to drive the rotating rods 85 to rotate.

The lower extreme sliding connection of cavity 84 has fixture block 813, fixedly connected with second cylinder 812 on the fixture block 813, cavity 84 swivelling joint has dwang 85 in the rotation, first slotted hole 86 has been seted up to the upper end of dwang 85, first cylinder 88 and first slotted hole 86 sliding fit each other, the second slotted hole 811 has been seted up to the one end that dwang 85 kept away from first slotted hole 86, second slotted hole 811 and the mutual sliding fit of second cylinder 812, the second slotted hole 811 of the other end of dwang 85 drives the outside removal of second cylinder 812, second cylinder 812 drives fixture block 813 outwards removal, at this moment with first connector 81 or second connector 11 insert in the fourth recess 83 of combined type main shaft 5 lower extreme in, after release button 810, under the effect of second spring 89, promote slider 87 outwards removal, thereby drive fixture block 813 inwards move through dwang 85, accomplish the fixing in inserting first square hole 82 or the second square hole 12.

As shown in fig. 11-14, the soil screeding drill bit 6 comprises a connecting seat 61 fixed at the lower end of the second connector 11, one end fixedly connected with spiral drill bit 64 of the connecting seat 61, the upper end sliding connection of the connecting seat 61 is provided with a fixed lantern ring 62, a plurality of scrapers 63 are rotationally connected around the connecting seat 61, a plurality of supporting rods 65 are slidably connected in the connecting seat 61, one end fixedly connected with limiting plates 66 of the supporting rods 65, one end fixedly connected with a first spring 67 of the limiting plates 66, which is far away from the supporting rods 65, one end fixedly connected with a first connecting block 68 of the supporting rods 65, which is far away from the first spring 67, a first sliding groove 610 is formed in one side of the connecting seat 61, which is close to the connecting seat 61, second sliding grooves 611 are formed in the upper and lower ends of the first sliding grooves 610, the second sliding grooves 611 are in sliding fit with the sliding connection with the sliding grooves 69, when the combined main shaft 5 pushes the soil screeding drill bit 6 to move downwards while rotating, the fixed lantern ring 62 of the soil is pushed by the soil, the fixed lantern ring 68 pushes the first sliding grooves 68 to the first sliding blocks 68 to the sliding down, and the soil is prevented from being mixed with the sliding blocks 67 when the sliding down the first sliding blocks 67, and the soil is pushed down by the sliding blocks to the first sliding blocks 67, thereby the soil is prevented from being mixed with the sliding blocks.

As shown in fig. 15 and 16, the sampling tube 7 includes a tube body 71 fixed at the lower end of the second connector 11, an observation hole 72 is formed in one side of the tube body 71, the collected soil is primarily observed through the observation hole 72, a moving block 75 is slidably connected in one end of the tube body 71 close to the second connector 11, a second connecting block 79 is fixedly connected to one side of the moving block 75, a shifting block 78 is fixedly connected to one end of the second connecting block 79 far away from the moving block 75, a third groove 76 is formed in one side of the tube body 71, a strip-shaped hole 77 is formed in the bottom end of the third groove 76, a push rod 74 is fixedly connected to the lower end of the moving block 75, a piston 73 is fixedly connected to one end of the push rod 74 far away from the moving block 75, the second connecting block 79 and the strip-shaped hole 77 are in sliding fit with each other, the shifting block 78 and the third groove 76 are in sliding fit with each other, a chamfer is formed in the lower end of the tube body 71, an anti-skid pattern is formed in the shifting block 78, the shifting block 78 is pushed, the shifting block 78 is driven to move the moving block 75 downwards through the second connecting block 79, the shifting block 78, the piston 73 is driven to move through the push rod 74, the piston 73, and the piston 73 is pushed out of the soil in the tube 71.

The working principle of this embodiment is that the bottom plate 1 is placed on the soil to be sampled, the through hole 10 is aligned to the sampling point, the rotating head 92 is driven to rotate by the rotating handle 93, the rotating head 92 drives the tapered threaded rod 91 to rotate and move downwards, the tapered threaded rod 91 is inserted into the soil to be fixed, then the button 810 is pressed, the sliding block 87 moves inwards, the sliding block 87 is matched with the first straight slot hole 86 through the first cylinder 88 to drive the rotating rod 85 to rotate, the second straight slot hole 811 at the other end of the rotating rod 85 drives the second cylinder 812 to move outwards, the second cylinder 812 drives the clamping block 813 to move outwards, at this moment, the second connector 11 on the soil leveling drill bit 6 is inserted into the fourth groove 83 at the lower end of the combined spindle 5, after the button 810 is released, the sliding block 87 is driven to move outwards under the action of the second spring 89, the clamping block 813 is driven to move inwards by the rotating rod 85, the second connecting rod 813 is inserted into the second square hole 12 to finish fixing, then the first connector 81 at the upper end of the combined spindle 5 is inserted into the second combined spindle 5, the fourth groove 83 is matched with the first connecting rod 81 through the first connecting rod 88, the second connecting rod is driven by the second connecting rod 811, at this moment, the second connecting rod is driven by the second connecting rod 33 is driven to rotate the second connecting rod 33, the combined spindle 5 is driven to rotate by the second connecting rod 33, the combined spindle 33 is driven to rotate by the second connecting rod through the second connecting rod 33, and the combined spindle 33 is driven by the driving spindle 33, and the combined spindle 33 is driven to rotate by the driving spindle 33, and the combined spindle 33 is driven by the driving spindle 33, and is driven by the driving spindle through the driving spindle 33, and is driven to rotate through the driving spindle 33 to rotate, and is driven to rotate. The combined main shaft 5 is clamped in the vertical direction by clamping the main clamping groove 52 by the sliding clamping plate 44, along with the extension of the first hydraulic rod 41, the combined main shaft 5 drives the soil leveling drill bit 6 to descend for drilling, when the first hydraulic rod 41 extends to the limit, the second hydraulic rod 46 contracts, the sliding clamping plate 44 is opened, then the first hydraulic rod 41 shortens, the fixed plate 42 moves to the position of the other clamping groove 52 above, the second hydraulic rod 46 extends, the sliding clamping plate 44 is clamped in the other clamping groove 52, then the first hydraulic rod 41 extends, the combined main shaft 5 continues to descend, the length of the combined main shaft 5 above the driven gear 33 is reduced to a certain range value every time, other combined main shafts 5 can be installed on the combined main shaft 5 in the driven gear 33, so that the length of the combined main shaft 5 can be changed, deep layers can be reached, and when the soil leveling drill bit 6 rotates, the screw drill 64 drills, when the combined main shaft 5 pushes the soil leveling drill 6 to move downwards while rotating, the soil lifts the fixed collar 62 of the fixed scraping plate 63, the supporting rod 65 pushes the first connecting block 68 to move outwards under the pushing of the first spring 67, the first connecting block 68 pushes the scraping plate 63 to turn outwards through the matching of the sliding block 69 and the second sliding groove 611, so that loose soil is squeezed and leveled around when the soil leveling drill 6 rotates at the descending side, when the soil is prevented from being drilled deep, the soil on the surface layer collapses, the soil is mixed with deep soil to affect sampling, then the first hydraulic rod 41 is contracted, the main shaft lifting mechanism 4 drives the combined main shaft 5 to lift, then the button 810 is pressed, the clamping block 813 is pushed out of the second square hole 12, the soil leveling drill 6 is dismounted and replaced by the sampling tube 7, the second connector 11 on the sampling tube 7 is inserted into the fourth groove 83, the button 810 is released, the clamping block 813 is inserted into the second square hole 12, the sampling tube 7 is inserted into the deep and lifted out through the same steps of drilling, then the shifting block 78 is pushed, the shifting block 78 drives the moving block 75 to move downwards through the second connecting block 79, the moving block 75 drives the piston 73 to move through the push rod 74, and the piston 73 pushes out soil in the tube body 71, so that sampling is completed.

The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. The utility model provides a deep soil sampler, includes bottom plate (1), soil trowelling drill bit (6) and sampling tube (7), its characterized in that: the soil leveling device is characterized in that a truss (2) is fixedly connected to the upper surface of the bottom plate (1), a driving mechanism (3) is fixedly connected to the upper end of the truss (2), a plurality of combined spindles (5) are arranged in the driving mechanism (3) in a penetrating manner, the combined spindles (5) are fixedly connected through a quick-release connecting structure (8), a second connector (11) is fixedly connected to the upper ends of the soil leveling drill bit (6) and the sampling tube (7), second square holes (12) are formed in the second connector (11), a stabilizing mechanism (9) is arranged on the upper surface of the bottom plate (1), a spindle lifting mechanism (4) is fixedly connected to the upper end of the truss (2), and a through hole (10) is formed in the bottom plate (1);

the soil screeding drill bit (6) comprises a connecting seat (61) fixed at the lower end of a second connector (11), one end, away from the second connector (11), of the connecting seat (61) is fixedly connected with a spiral drill bit (64), the upper end of the connecting seat (61) is connected with a fixed sleeve ring (62) in a sliding mode, a plurality of scraping plates (63) are rotationally connected around the connecting seat (61), a plurality of supporting rods (65) are connected in the connecting seat (61) in a sliding mode, one end, close to the connecting seat (61), of the supporting rods (65) is fixedly connected with a limiting plate (66), one end, away from the supporting rods (65), of the limiting plate (66) is fixedly connected with a first spring (67), one end, away from the first spring (67), of the supporting rods (65) is fixedly connected with a first connecting block (68), a sliding block (69) is fixedly connected with through the first connecting block (68), one side, close to the connecting seat (61), of the scraping plates (63) is provided with a plurality of sliding grooves (610), the upper end and the lower end, close to the connecting block (611) of the first sliding block (610) is provided with a second sliding block (611);

the combined main shaft (5) comprises a shaft body (51), clamping grooves (52) are formed in two ends of the shaft body (51), and a plurality of second grooves (53) are formed in the outer wall of the shaft body (51).

2. The deep soil sampler according to claim 1, characterized in that the driving mechanism (3) comprises a pair of fixing frames (31) fixed on the upper surface of the truss (2), one end of each fixing frame (31) far away from the truss (2) is fixedly connected with a limiting ring (32), the lower end of each limiting ring (32) is rotationally connected with a driven gear (33), a first groove (35) is formed in the upper surface of each driven gear (33), the first groove (35) and each limiting ring (32) are in sliding fit with each other, a plurality of protruding blocks (34) are fixedly connected in each driven gear (33), a rack (36) is fixedly connected with the upper surface of each truss (2), a motor (37) is fixedly connected with the upper surface of each rack (36), the output end of each motor (37) is fixedly connected with a rotating shaft (38), one end of each rotating shaft (38) far away from each motor (37) is fixedly connected with a driving gear (39), a shaft body (51) is connected in a penetrating and sliding manner in each driven gear (33), and the protruding blocks (34) are in sliding fit with a second groove (53).

3. The deep soil sampler according to claim 1, wherein the main shaft lifting mechanism (4) comprises a pair of first hydraulic rods (41) penetrating and fixed at the upper end of the truss (2), the lower ends of the first hydraulic rods (41) are fixedly connected with a fixing plate (42), two sides of the lower surface of the fixing plate (42) are fixedly connected with a pair of sliding rails (43), a pair of sliding clamping plates (44) are fixedly connected to the sliding rails (43), two ends of the lower surface of the fixing plate (42) are fixedly connected with a pair of first connecting plates (45), two ends of the lower surface of the fixing plate (42) are fixedly connected with second hydraulic rods (46), one ends, far away from the first connecting plates (45), of the second hydraulic rods (46) are fixedly connected with second connecting plates (47), the second connecting plates (47) are fixedly connected with the sliding clamping plates (44), and the sliding clamping plates (44) are mutually clamped and matched with clamping grooves (52).

4. The deep soil sampler according to claim 1, characterized in that the sampling tube (7) comprises a tube body (71) fixed at the lower end of the second connector (11), an observation hole (72) is formed in one side of the tube body (71), a moving block (75) is slidably connected in one end, close to the second connector (11), of the tube body (71), a second connecting block (79) is fixedly connected to one side of the moving block (75), a shifting block (78) is fixedly connected to one end, far away from the moving block (75), of the second connecting block (79), a third groove (76) is formed in one side of the tube body (71), and a strip-shaped hole (77) is formed in the bottom end of the third groove (76).

5. The deep soil sampler according to claim 4, characterized in that the lower end of the moving block (75) is fixedly connected with a push rod (74), one end of the push rod (74) away from the moving block (75) is fixedly connected with a piston (73), the second connecting block (79) is in sliding fit with the strip-shaped hole (77), the shifting block (78) is in sliding fit with the third groove (76), the lower end of the pipe body (71) is in inclined cutting arrangement, and anti-skid patterns are arranged on the shifting block (78).

6. The deep soil sampler according to claim 1, characterized in that the quick-release connection structure (8) comprises a first connector (81) fixed at the upper end of the shaft body (51), a first square hole (82) is formed in the first connector (81), a fourth groove (83) is formed in the lower end of the shaft body (51), cavities (84) are formed in two sides of the lower end of the shaft body (51), sliding blocks (87) are slidably connected to the upper ends of the cavities (84), one ends, close to the fourth grooves (83), of the sliding blocks (87) are fixedly connected with second springs (89), first cylinders (88) are fixedly connected to the sliding blocks (87), one ends, far away from the second springs (89), of the sliding blocks (87) are fixedly connected with buttons (810), the second connectors (11) are identical to the first connectors (81), and the second square holes (12) are identical to the first square holes (82).

7. The deep soil sampler according to claim 6, characterized in that a clamping block (813) is slidably connected to the lower end of the cavity (84), a second cylinder (812) is fixedly connected to the clamping block (813), a rotating rod (85) is rotationally connected to the cavity (84), a first straight slot hole (86) is formed in the upper end of the rotating rod (85), the first cylinder (88) and the first straight slot hole (86) are slidably matched with each other, a second straight slot hole (811) is formed in one end, far away from the first straight slot hole (86), of the rotating rod (85), and the second straight slot hole (811) and the second cylinder (812) are slidably matched with each other.

8. The deep soil sampler according to claim 1, characterized in that the stabilizing mechanism (9) comprises a conical threaded rod (91) connected to the bottom plate (1) through threads, a rotating head (92) is fixedly connected to the upper surface of the conical threaded rod (91), and a rotating handle (93) is fixedly connected to the rotating head (92) through threads.