CN113607467B

CN113607467B - High-efficient automatic geotome

Info

Publication number: CN113607467B
Application number: CN202110854107.2A
Authority: CN
Inventors: 傅松玲; 黄铖; 王兆成; 刘华; 杨帆; 马玉华; 谷明远; 冯春; 黄东晨
Original assignee: Anhui Agricultural University AHAU
Current assignee: Anhui Agricultural University AHAU
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-03-25
Anticipated expiration: 2041-07-26
Also published as: CN113607467A

Abstract

The invention relates to the field of soil sampling equipment, in particular to a high-efficiency automatic soil sampler, which comprises a bottom plate, wherein the bottom plate is fixedly connected with a rack through a bracket III, a sampling cylinder is arranged on the rack and can pass through a through hole arranged on the bottom plate, and the high-efficiency automatic soil sampler also comprises: the soil sampling mechanism is arranged on the frame and is used for driving the sampling cylinder to sample soil; the driving mechanism is arranged on the rack and is in transmission connection with the soil sampling mechanism, the driving mechanism is used for driving the soil sampling mechanism to provide driving force, the reciprocating torsion mechanism is arranged on the rack and is used for driving the sampling cylinder to rotate around the central axis of the sampling cylinder in a reciprocating mode in the soil sampling process, and the reciprocating torsion mechanism is in transmission connection with the soil sampling mechanism. This kind of high-efficient automatic geotome realizes carrying out automatic sampling to soil, labour saving and time saving, and the simple operation realizes adjusting the degree of depth that the sampler barrel impressed soil according to the sample requirement of the degree of depth of difference.

Description

High-efficient automatic geotome

Technical Field

The invention relates to the field of soil sampling equipment, in particular to a high-efficiency automatic soil sampler.

Background

In agriculture, forestry and the ecological research of environment, mainly take a sample through the sampling tube that has the cutting ring when taking a sample to soil, utilize the manpower to push down the sampling tube to soil in, lift again to take a sample. This kind of sample mode is because viscous resistance is great between the outer wall of soil and sampler barrel to lead to sample intensity of labour big, waste time and energy, increase the sample degree of difficulty, be not convenient for moreover to adjust the soil sample of the different degree of depth, the operation is inconvenient, in view of this, we provide a high-efficient automatic geotome.

Disclosure of Invention

The invention aims to provide an efficient automatic soil sampler to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high-efficient automatic geotome, includes the bottom plate, through three fixed connection frames of support on the bottom plate, is provided with the sampler barrel in the frame, and the sampler barrel can pass the through-hole of seting up on the bottom plate, still includes:

the soil sampling mechanism is arranged on the frame and is used for driving the sampling cylinder to sample soil;

the driving mechanism is arranged on the rack and is in transmission connection with the soil taking mechanism, and the driving mechanism is used for driving the soil taking mechanism to provide driving force;

the reciprocating torsion mechanism is arranged on the rack and used for driving the sampling cylinder to rotate around the central axis of the sampling cylinder in a reciprocating mode in the soil sampling process, and the reciprocating torsion mechanism is in transmission connection with the soil sampling mechanism.

Preferably, the soil taking mechanism comprises a second support fixed on the rack, the upper end of the second support is connected with the middle of the swing rod in a fixed-shaft rotating mode, the rotating shaft of the swing rod is coaxially and fixedly connected with a first fluted disc, the first fluted disc is in transmission connection with the reciprocating twisting mechanism, one end of the swing rod is fixedly connected with a third arc-shaped rack, the other end of the swing rod is provided with a strip-shaped through hole, and the end, provided with the strip-shaped through hole, of the swing rod is in transmission connection with the driving mechanism.

Preferably, actuating mechanism includes that the dead axle rotates the screw rod two of connection in the frame, screw rod two runs through and the threaded connection slide, slide sliding connection is in the frame, be fixed with the pneumatic cylinder on the slide, the piston rod end of pneumatic cylinder is fixed with pin rod two, pin rod two is pegged graft in the bar through-hole, and can slide in the bar through-hole, the one end that fluted disc one was kept away from to the bar through-hole is fixed with touch switch one, pin rod two can support the knot contact with touch switch one, the cylinder wall upper end of pneumatic cylinder is fixed with touch switch two, be fixed with the depression bar on the piston rod of pneumatic cylinder, the depression bar can support the knot contact with touch switch two.

Preferably, the mechanism of fetching earth still includes support one, and the lower extreme of support one is fixed in the sampler barrel upper end, and the lower extreme of sampler barrel is fixed with the cutting ring, and the upper end of support one is fixed with polygon pole, and the upper end wall center of sampler barrel runs through and threaded connection has screw rod one, and the inside sliding connection of sampler barrel has the push pedal, and a screw rod dead axle rotates to be connected on the push pedal.

Preferably, the downward spout that sets up is seted up to the lateral wall upper end of sampler barrel, and pegs graft in the spout and sliding connection has rack four, sets up the recess on the inside wall of sampler barrel, and the dead axle rotates in the recess and is connected with the gear, and the gear is connected with four meshing of rack, and is fixed with the nose bar on the gear, is fixed with the cylinder on the support one, the tailpiece of the piston rod of cylinder and the upper end fixed connection of rack four.

Preferably, the central axis shared by the polygonal rod and the sampling tube is arranged, the upper end dead axle of the polygonal rod is rotatably connected with the bump, the bump is fixedly connected to the lower end of the second rack, the second rack is meshed with the third rack, and the second rack is slidably connected to the fourth support fixed on the rack.

Preferably, the reciprocating torsion mechanism comprises a shaft sleeve which penetrates through and is connected to the rack in a fixed-shaft rotating mode, the two ends of the upper end of the shaft sleeve are fixedly connected with the gear ring and the limiting plate respectively, and the multi-edge rod penetrates through and is connected in the shaft sleeve in a sliding mode.

Preferably, the fixed shaft on the second support is rotatably connected with a second fluted disc, the second fluted disc is meshed with the first fluted disc, a first pin rod is fixed at a position, far away from the circle center, on the second fluted disc, the first pin rod is spliced and slidably connected onto the sliding frame, the sliding frame is vertically fixed at the upper end of the sliding rod, the sliding rod is arranged in the vertical direction, and the sliding rod is slidably connected into a guide sleeve fixed on the second support.

Preferably, a guide frame is fixed on the rack, a first rack is connected to the guide frame in a sliding mode, the first rack is meshed with the gear ring, and one end of the first rack is hinged to the lower end of the sliding rod through a connecting rod.

Preferably, the hydraulic cylinder further comprises a controller, a signal input end of the controller is electrically connected with the first touch switch and the second touch switch respectively, and an execution output end of the controller is electrically connected with the hydraulic cylinder and the air cylinder respectively.

Compared with the prior art, the invention has the beneficial effects that:

according to the soil sampling device, the driving mechanism drives the soil sampling mechanism to automatically sample soil, so that time and labor are saved, the operation is convenient, the stability of the sampling cylinder during pressing in the soil or lifting from the soil can be ensured, the accuracy of soil sampling is ensured, the depth of the sampling cylinder pressed in the soil can be adjusted according to sampling requirements of different depths, and the adjustment operation is simple and convenient.

According to the soil sampling mechanism, the soil sampling mechanism drives the reciprocating torsion mechanism to drive the sampling cylinder to rotate in a reciprocating mode in the soil sampling process, so that the sampling cylinder can be conveniently and smoothly pressed into the soil or lifted out of the soil, the soil sampling difficulty is reduced, and the sampling smoothness is ensured.

Drawings

FIG. 1 is a first schematic view of the cross-sectional structure of the final assembly of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

FIG. 4 is a schematic view of the cross-sectional structure of the final assembly of the present invention;

fig. 5 is an enlarged schematic view of the structure at C in fig. 4.

In the figure: 1. a base plate; 2. a through hole; 3. pushing the plate; 4. a first screw rod; 5. a first rack; 6. a multi-edged pole; 7. a bump; 8. a second rack; 9. a third rack; 10. a carriage; 11. a guide frame; 12. a connecting rod; 13. A first bracket; 14. a cylinder; 15. a rack four; 16. a sampling tube; 17. cutting with a ring cutter; 18. a first fluted disc; 19. A second fluted disc; 20. a first pin rod; 2l, a guide sleeve; 22. a slide bar; 23. a second bracket; 24. a pin rod II; 25. a strip-shaped through hole; 26. a first touch switch; 27. a pressure lever; 28. a second touch switch; 29. a hydraulic cylinder; 30. a slide base; 31. a second screw; 32. a frame; 33. a third bracket; 34. a ring gear; 35. a shaft sleeve; 36. a limiting plate; 37. a chute; 38. a gear; 39. a nose bar; 40. a groove; 41. a swing rod; 42. And a fourth bracket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by workers skilled in the art without creative efforts based on the embodiments of the present invention, belong to the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: the utility model provides a high-efficient automatic geotome, includes bottom plate 1, through three 33 fixed connection frames 32 of support on the bottom plate 1, is provided with a sampler barrel 16 in the frame 32, and sampler barrel 16 can pass through the through-hole 2 of seting up on bottom plate 1, its characterized in that: further comprising:

the soil sampling mechanism is arranged on the frame 32, the sampling cylinder 16 is arranged on the soil sampling mechanism, and the soil sampling mechanism is used for driving the sampling cylinder 16 to sample soil;

the driving mechanism is arranged on the rack 32 and is in transmission connection with the soil taking mechanism, and the driving mechanism is used for driving the soil taking mechanism to provide driving force;

the reciprocating torsion mechanism is arranged on the frame 32 and is used for driving the sampling cylinder 16 to rotate around the central axis of the sampling cylinder in a reciprocating manner in the soil sampling process, and the reciprocating torsion mechanism is in transmission connection with the soil sampling mechanism.

In the embodiment, as shown in fig. 1 and 4, the soil sampling mechanism includes a second support 23 fixed on the frame 32, the upper end of the second support 23 is connected to the middle of a swing rod 41 in a fixed-axis rotating manner, a first toothed disc 18 is coaxially and fixedly connected to a rotating shaft of the swing rod 41, the first toothed disc 18 is in transmission connection with the reciprocating torsion mechanism, one end of the swing rod 41 is fixedly connected to a third circular-arc-shaped rack 9, the other end of the swing rod 41 is provided with a strip-shaped through hole 25, the center of the third rack 9 coincides with the center of the first toothed disc 18, and one end of the swing rod 41 provided with the strip-shaped through hole 25 is in transmission connection with the driving mechanism, the soil sampling mechanism further includes a first support 13, the lower end of the first support 13 is fixed to the upper end of the sampling cylinder 16, the lower end of the sampling cylinder 16 is fixed with a circular knife 17, the upper end of the first support 13 is fixed with a multi-edge rod 6, the center of the upper end wall of the sampling cylinder 16 is in threaded connection with a first screw rod 4, the sampling cylinder 16 is slidably connected with a push plate 3, and screw rod 4 dead axle rotates to be connected on push pedal 3, takes out soil sample at sampling tube 16 after, rotates screw rod 4 and makes screw rod 4 drive push pedal 3 through screw thread transmission and move down for push pedal 3 releases the soil sample of taking out inside sampling tube 16, labour saving and time saving.

In this embodiment, as shown in fig. 1 and 4, the driving mechanism includes a second screw 31 rotatably connected to the frame 32, the second screw 31 penetrates and is in threaded connection with the sliding seat 30, the sliding seat 30 is slidably connected to the frame 32, a hydraulic cylinder 29 is fixed to the sliding seat 30, a second pin 24 is fixed to a piston rod end of the hydraulic cylinder 29, the second pin 24 is inserted into the strip-shaped through hole 25 and can slide in the strip-shaped through hole 25, a first touch switch 26 is fixed to one end of the strip-shaped through hole 25 away from the first toothed disc 18, the second pin 24 can be in abutting contact with the first touch switch 26, a second touch switch 28 is fixed to an upper end of a cylinder wall of the hydraulic cylinder 29, a pressure rod 27 is fixed to the piston rod of the hydraulic cylinder 29, the pressure rod 27 can be in abutting contact with the second touch switch 28, when soil of different depths needs to be sampled, the second screw 31 is rotated to drive the sliding seat 30 to move left and right on the frame 32 through threaded transmission, thereby make slide 30 move about driving pneumatic cylinder 29 in step, and then adjust the initial position of round pin pole two 24 in bar through-hole 25 inside, namely, change the drive arm length of pendulum rod 41, thereby change the turned angle of pendulum rod 41, change the moving stroke that rack three 9 drives rack two 8, and then change the degree of depth of the soil of impressing to sampler barrel 16 and adjust, realize according to the sample requirement of the degree of depth of difference, adjust the degree of depth that sampler barrel 16 impresses soil, it is simple and convenient to adjust the operation.

In this embodiment, as shown in fig. 3 and 5, a downward sliding groove 37 is formed at the upper end of the side wall of the sampling cylinder 16, a rack bar four 15 is inserted and slidably connected in the sliding groove 37, a groove 40 is formed on the inner side wall of the sampling cylinder 16, a gear 38 is rotatably connected in the groove 40, the gear 38 is engaged with the rack bar four 15, a protruding rod 39 is fixed on the gear 38, an air cylinder 14 is fixed on a bracket one 13, a piston rod end of the air cylinder 14 is fixedly connected with the upper end of the rack bar four 15, the sampling cylinder 16 is ready to move upwards while a pin rod two 24 is in abutting contact with a touch switch one 26, and the controller controls the air cylinder 14 to extend out of the piston rod, so that the piston rod drives the rack bar four 15 to move downwards in the sliding groove 37, as shown in fig. 3 and 5, the rack bar four 15 drives the gear 38 to rotate anticlockwise, so that the gear 38 drives the protruding rod 39 to rotate against the hour hand, thereby play the effect of upwards bracketing to the soil in the sampler barrel 16, avoid the in-process that shifts up at the sampler barrel 16 to lead to soil roll-off from the sampler barrel 16 in, thereby ensure the reliable and stable nature of sample, many arriss pole 6 and the setting of sampler barrel 16 sharing central axis, the upper end dead axle of many arriss pole 6 rotates connection lug 7, and lug 7 fixed connection is at the lower extreme of two 8 racks, two 8 racks and three 9 meshing of rack are connected, two 8 sliding connection of rack are on being fixed in four 42 of support on the frame 32.

In this embodiment, as shown in fig. 1, 2 and 4, the reciprocating torsion mechanism includes a shaft sleeve 35 penetrating through and fixed in rotation on the frame 32, two ends of the upper end of the shaft sleeve 35 are respectively fixedly connected with a gear ring 34 and a limit plate 36, a multi-edge rod 6 penetrates through and is slidably connected in the shaft sleeve 35, a second toothed disk 19 is rotatably connected on a fixed shaft on the second bracket 23, the second toothed disk 19 is engaged with the first toothed disk 18, a first pin rod 20 is fixed on the second toothed disk 19 at a position away from the center of circle, the first pin rod 20 is inserted and slidably connected on the carriage 10, the carriage 10 is vertically fixed on the upper end of a sliding rod 22, the sliding rod 22 is vertically arranged, the sliding rod 22 is slidably connected in a guide sleeve 21 fixed on the second bracket 23, a guide frame 11 is fixed on the frame 32, a first rack 5 is slidably connected on the guide frame 11, the first rack 5 is engaged with the gear ring 34, one end of the first rack 5 is hinged with the lower end of the sliding rod 22 through a connecting rod 12, in the process of soil sampling, the rotation synchronous belt of the swing rod 41 drives the first fluted disc 18 to rotate, the first fluted disc 18 drives the second fluted disc 19 to rotate, the second fluted disc 19 drives the first pin rod 20 to rotate synchronously, the first pin rod 20 drives the sliding rack 10 and the sliding rod 22 to move up and down in the guide sleeve 21, the sliding rod 22 further drives the first rack 5 to move left and right in the guide frame 11 through the connecting rod 12, the first rack 5 drives the shaft sleeve 35 to rotate in a reciprocating mode around the central axis of the first rack through the gear ring 34, the shaft sleeve 35 drives the sampling cylinder 16 to rotate in a reciprocating mode in the sampling process through the first multi-edge rod 6 and the first support 13, the sampling cylinder 16 can be smoothly pressed into or lifted out from the soil conveniently, the soil sampling difficulty is reduced, and the sampling smoothness of the sampling is ensured.

In this embodiment, the controller further includes a controller, signal input ends of the controller are electrically connected to the first touch switch 26 and the second touch switch 28, respectively, and an execution output end of the controller is electrically connected to the hydraulic cylinder 29 and the air cylinder 14, respectively.

The invention has the advantages that: this kind of high-efficient automatic geotome is when carrying out the soil sample, and the working process is as follows:

as shown in fig. 1 and 4, fig. 1 is an initial state, at this time, the swing rod 41 is in a horizontal state, the press rod 27 is in abutting contact with the second touch switch 28, and at this time, the air cylinder 14 is in a contracted state, the protruding rod 39 is located inside the groove 40, then the through hole 2 of the base plate 1 is aligned with the soil position to be sampled, the hydraulic cylinder 29 is controlled by the controller to operate, the hydraulic cylinder 29 drives the second pin 24 to apply an upward thrust to the right end of the swing rod 41 by extending the piston rod, and the swing rod 41 rotates counterclockwise around the connecting shaft of the swing rod 41 and the second bracket 23, so that the swing rod 41 drives the third rack 9 to rotate around the center of the first fluted disc 18 in the reverse direction, so that the third rack 9 drives the second rack 8 to move downward, the downward movement of the second rack 8 drives the multi-edged rod 6 to move downward by the bump 7, and further the multi-edged rod 6 drives the sampling cylinder 16 to move downward by the first bracket 13, when the second pin rod 24 is in abutting contact with the first touch switch 26, the sampling cylinder 16 is pressed into the soil through the through hole 2, and simultaneously the first touch switch 26 transmits a touch signal of the second pin rod 24 to the controller, so that the controller controls the hydraulic cylinder 29 to contract the piston rod thereof, so that the second pin rod 24 applies a downward pressure to the right end of the swing rod 41, the swing rod 41 drives the third rack 9 to rotate clockwise, the third rack 9 drives the second rack 8 to move upwards, the second rack 8 drives the polygonal rod 6 to move upwards through the bump 7, the polygonal rod 6 drives the sampling cylinder 16 to move upwards through the first bracket 13, and synchronously drives the soil sample to move upwards, when the press rod 27 is in abutting contact with the second touch switch 28, the sampling cylinder 16 resets at the moment, and the second touch switch 28 transmits a touch signal of the press rod 27 to the controller, the pneumatic cylinder 29 stop work is controlled to the controller to make a screw rod 4 move down through screw transmission drive push pedal 3 through rotating a screw rod 4, make the push pedal 3 with the inside soil sample who takes out of sampling tube 16 release can, realize the automatic sampling to soil, labour saving and time saving, the simple operation, and can ensure the stability of sampling tube 16 when pressing into soil or lifting from soil, thereby ensure the accuracy of soil sampling.

When the soil of the different degree of depth is sampled to needs, through rotating second screw rod 31, make second screw rod 31 pass through screw transmission and drive slide 30 and remove about in frame 32, thereby make slide 30 remove about moving hydraulic cylinder 29, and then adjust the initial position of pin rod two 24 inside bar through-hole 25, namely, change the drive power arm length of pendulum rod 41, thereby change the turned angle of pendulum rod 41, change the removal stroke that drives rack two 8 to rack three 9, and then change the regulation to the depth of the soil of impressing to sampler barrel 16, realize the sampling requirement according to the degree of depth of difference, adjust the degree of depth of soil that the sampler barrel 16 impressed, it is convenient to adjust easy operation.

When the second pin rod 24 is in abutting contact with the first touch switch 26, the sampling cylinder 16 is ready to move upwards, and the controller controls the air cylinder 14 to extend out of the piston rod, so that the piston rod drives the fourth rack 15 to move downwards in the sliding groove 37, as shown in fig. 3 and 5, the fourth rack 15 drives the gear 38 to rotate anticlockwise, the gear 38 drives the convex rod 39 to rotate anticlockwise, an upward supporting effect on soil in the sampling cylinder 16 is achieved, the soil is prevented from sliding out of the sampling cylinder 16 in the process of moving upwards the sampling cylinder 16, and stability and reliability of sampling are guaranteed.

When the pressure lever 27 is in abutting contact with the second touch switch 28, the soil sample needs to be taken out of the sampling cylinder 16, the controller controls the hydraulic cylinder 29 to stop working and also controls the air cylinder 14 to contract the piston rod of the air cylinder, the rack four 15 moves upwards and resets, the rack four 15 moves upwards and simultaneously drives the gear 38 to rotate clockwise, the gear 38 drives the convex rod 39 to rotate clockwise and is accommodated in the groove 40, and therefore the blocking is not applied to the soil sample inside the sampling cylinder 16, the soil sample can be taken out of the sampling cylinder 16 smoothly, and the sampling smoothness is ensured.

As shown in fig. 1, 2 and 4, in the soil sampling process, the rotation of the swing rod 41 synchronously drives the first fluted disc 18 to rotate, the first fluted disc 18 drives the second fluted disc 19 to rotate, so that the second fluted disc 19 synchronously drives the first pin rod 20 to rotate, the first pin rod 20 drives the sliding frame 10 and the sliding rod 22 to move up and down in the guide sleeve 21, the sliding rod 22 drives the first rack 5 to move left and right in the guide frame 11 through the connecting rod 12, the first rack 5 drives the shaft sleeve 35 to rotate around the central axis of the first rack 5 in a reciprocating manner through the gear ring 34, so that the shaft sleeve 35 drives the sampling cylinder 16 to rotate in a reciprocating manner in the sampling process through the multi-edge rod 6 and the first bracket 13, and the sampling cylinder 16 is conveniently and smoothly pressed into or lifted out of the soil, thereby reducing the soil sampling difficulty and ensuring the smooth sampling.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides a high-efficient automatic geotome, includes bottom plate (1), through three (33) fixed connection frames (32) of support on bottom plate (1), be provided with sampler barrel (16) on frame (32), and sampler barrel (16) can pass through-hole (2) of seting up on bottom plate (1), its characterized in that: further comprising:

the soil sampling mechanism is arranged on the soil sampling mechanism, the soil sampling mechanism is used for driving the soil sampling barrel (16) to sample soil, and the soil sampling mechanism is arranged on the rack (32);

the driving mechanism is arranged on the rack (32) and is in transmission connection with the soil taking mechanism, and the driving mechanism is used for driving the soil taking mechanism to provide driving force;

the reciprocating torsion mechanism is arranged on the rack (32) and is used for driving the sampling cylinder (16) to rotate around the central axis of the sampling cylinder in a reciprocating manner in the soil sampling process, and the reciprocating torsion mechanism is in transmission connection with the soil sampling mechanism;

the soil sampling mechanism comprises a second support (23) fixed on the rack (32), the upper end of the second support (23) is fixedly connected with the middle part of a swing rod (41) in a rotating mode through a fixed shaft, a first fluted disc (18) is coaxially and fixedly connected with the rotating shaft of the swing rod (41), the first fluted disc (18) is in transmission connection with the reciprocating torsion mechanism, one end of the swing rod (41) is fixedly connected with a third arc-shaped rack (9), the other end of the swing rod is provided with a strip-shaped through hole (25), and one end, provided with the strip-shaped through hole (25), of the swing rod (41) is in transmission connection with the driving mechanism; the driving mechanism comprises a second screw rod (31) which is connected with the frame (32) in a fixed-shaft rotating way, the second screw rod (31) penetrates through and is in threaded connection with the sliding seat (30), the sliding seat (30) is in sliding connection with the rack (32), a hydraulic cylinder (29) is fixed on the sliding seat (30), a pin rod II (24) is fixed at the piston rod end of the hydraulic cylinder (29), the pin rod II (24) is inserted in the strip-shaped through hole (25), and can slide in the strip-shaped through hole (25), one end of the strip-shaped through hole (25) far away from the fluted disc I (18) is fixed with a touch switch I (26), the second pin rod (24) can be in abutting contact with the first touch switch (26), the second touch switch (28) is fixed at the upper end of the cylinder wall of the hydraulic cylinder (29), a piston rod of the hydraulic cylinder (29) is fixedly provided with a pressure lever (27), and the pressure lever (27) can be in abutting contact with a second touch switch (28); the soil sampling mechanism further comprises a first support (13), the lower end of the first support (13) is fixed to the upper end of the sampling cylinder (16), a cutting ring (17) is fixed to the lower end of the sampling cylinder (16), a multi-edge rod (6) is fixed to the upper end of the first support (13), a first screw rod (4) penetrates through the center of the upper end wall of the sampling cylinder (16) and is in threaded connection with the center of the upper end wall of the sampling cylinder, a push plate (3) is connected to the inside of the sampling cylinder (16) in a sliding mode, and the first screw rod (4) is fixedly and rotatably connected to the push plate (3); the upper end of the side wall of the sampling cylinder (16) is provided with a downward sliding groove (37), the sliding groove (37) is internally inserted and connected with a rack four (15) in a sliding manner, the inner side wall of the sampling cylinder (16) is provided with a groove (40), a rotating shaft in the groove (40) is rotatably connected with a gear (38), the gear (38) is meshed and connected with the rack four (15), a convex rod (39) is fixed on the gear (38), an air cylinder (14) is fixed on the support I (13), and the piston rod end of the air cylinder (14) is fixedly connected with the upper end of the rack four (15); polygonal pole (6) and sampler barrel (16) sharing the central axis setting, the upper end dead axle of polygonal pole (6) rotates connection lug (7), and lug (7) fixed connection is at the lower extreme of rack two (8), rack two (8) are connected with rack three (9) meshing, rack two (8) sliding connection is on being fixed in support four (42) on frame (32).

2. The efficient automatic soil sampler as claimed in claim 1, wherein: reciprocating torsion mechanism is including running through and dead axle rotation connection axle sleeve (35) on frame (32), the upper end both ends of axle sleeve (35) are fixed connection ring gear (34), limiting plate (36) respectively, polygon pole (6) pass and sliding connection in axle sleeve (35).

3. The efficient automatic soil sampler as claimed in claim 2, wherein: dead axle rotation is connected with fluted disc two (19) on support two (23), and fluted disc two (19) and fluted disc one (18) meshing connection, the position of keeping away from the centre of a circle on fluted disc two (19) is fixed with round pin pole one (20), round pin pole one (20) are pegged graft and sliding connection on balladeur train (10), balladeur train (10) vertical fixation is in the upper end of slide bar (22), and slide bar (22) vertical direction sets up, slide bar (22) sliding connection is in uide bushing (21) that is fixed in on support two (23).

4. A high efficiency automatic soil sampler as claimed in claim 3 wherein: the guide frame (11) is fixed on the rack (32), a first rack (5) is connected to the guide frame (11) in a sliding mode, the first rack (5) is connected with the gear ring (34) in a meshed mode, and one end of the first rack (5) is hinged to the lower end of the sliding rod (22) through the connecting rod (12).

5. The automatic soil sampler of claim 2, wherein: the device is characterized by further comprising a controller, wherein the signal input end of the controller is electrically connected with the first touch switch (26) and the second touch switch (28), and the execution output end of the controller is electrically connected with the hydraulic cylinder (29) and the air cylinder (14).