A soil sampling device for environmental geological exploration

Abstract

The embodiment of the present application provides a soil sampling device for environmental geological exploration, which relates to the technical field of geological exploration for water conservancy projects. A soil sampling device for environmental geological exploration includes a base frame, the top of the base frame is vertically fixedly connected to the side frames and is distributed in a triangular equidistant state, and the top of the side frames is fixedly connected to the top frame; the four sides of the outer side of the top frame are fixedly connected to piston cylinders staggered with the side frames, and the inner cavity of the top frame is provided with a pile assembly used in conjunction with the side frames, and the pile assembly includes a servo motor fixed on the top frame; a booster assembly is provided on the piston cylinder, and the booster assembly includes a three-way valve connected to the piston cylinder, the air intake of the three-way valve is connected to an air intake pipe, and a sampling assembly used in conjunction with the pile assembly is provided on the outer side of the booster assembly. Based on the premise of stable pile insertion, a multi-point sampling effect is achieved for geological soil to avoid messy contamination of the collected soil samples.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy engineering geological exploration, and in particular relates to a soil sampling device for environmental geological exploration. Background Art

[0002] Water conservancy projects are comprehensive systems involving the development, utilization, and protection of water resources. They aim to achieve goals such as flood prevention and disaster reduction, water supply security, and ecological restoration. They regulate surface water and groundwater through the construction of hydraulic structures, encompassing flood control, irrigation, power generation, water supply, and reclamation. Before construction begins, it's necessary to sample the geological soil at the construction site in order to select different construction materials.

[0003] In the prior art (Patent Application No. CN118029351A, titled "A Soil Sampling Device for Environmental Geological Exploration"), a screw sleeve drives an adjustment plate and an extrusion rod upward. The extrusion rod, through an extrusion block, squeezes the baffles, allowing the baffles on both sides to contact and block the bottom of the soil, preventing the soil from falling and affecting subsequent soil testing results. During the implementation of this technical solution, at least the following problems were discovered in the prior art:

[0004] During the geological soil sampling of the water conservancy project construction site environment, most of the time, a single pile is inserted into the ground by piling, and then the collected soil is carried out. This soil sampling method is not only inefficient, but also prone to cross-mixing of soils at different depths, resulting in messy soil samples, which is not conducive to subsequent testing. Summary of the Invention

[0005] This application aims to at least solve one of the technical problems in the prior art, which is that it cannot achieve multi-point sampling of geological soil based on stable insertion, which is inefficient and also leads to messy contamination of soil samples. To this end, this application proposes a soil sampling device for environmental geological exploration.

[0006] To achieve the above object, the specific technical solutions of the present invention are as follows:

[0007] A soil sampling device for environmental geological exploration comprises a base frame, the top of each base frame is vertically fixedly connected to a side frame and is distributed in a triangular equidistant state, and the top of each side frame is fixedly connected to a top frame;

[0008] The outer sides of the top frame are fixedly connected with piston cylinders staggered with the side frames, and the inner cavity of the top frame is provided with a pile assembly used in conjunction with the side frames, and the pile assembly includes a servo motor fixed on the top frame;

[0009] The piston cylinder is provided with a boosting assembly, and the boosting assembly includes a three-way valve connected to the piston cylinder, the air intake of the three-way valve is connected to the air intake pipe, and a sampling assembly used in conjunction with the pile assembly is provided on the outside of the boosting assembly.

[0010] Preferably: the pile insertion assembly also includes an electric push rod embedded in the output shaft of the servo motor, and the piston rod of the electric push rod is fixedly connected to the main circular gear, and the four sides of the inner cavity of the top frame are rotatably connected to the slave circular gear used in conjunction with the main circular gear, and the inner cavity of the slave circular gear is fixedly connected to a threaded thick rod that rotatably cooperates with the side frame, a threaded sleeve is threadedly connected to the threaded thick rod, and the outer side of the threaded sleeve is fixedly connected to a bracket, the outer side of the bracket is fixedly connected to a sampling pile, and the two sides of the bracket away from the sampling pile are fixedly connected to positioning piles.

[0011] Preferably: the boost assembly also includes a main bevel gear fixed on the output shaft of the servo motor, and a secondary bevel gear is meshed with the bottom of the main bevel gear, the outer side of the secondary bevel gear is fixedly connected to a cam through a fixed rod, and the outer side of the cam is movably connected to a connecting rod through a protruding head, a piston is hinged on the connecting rod and slides with the piston cylinder, and the exhaust port of the three-way valve is connected to a boost pipe, the outer end of the boost pipe is connected to a telescopic pipe, and the bottom end of the telescopic pipe is connected to a pressure relief pipe with a pressure relief valve.

[0012] Preferably: the sampling assembly includes a sampling port provided on the sampling pile, and the inner cavity of the sampling pile is provided with a pressurization chamber, a sliding chamber and a first-level sample storage chamber in sequence from top to bottom, a T-shaped slide rod is slidably connected in the pressurization chamber, and a reset spring is sleeved on the T-shaped slide rod, the bottom of the T-shaped slide rod is fixedly connected to a sliding seat that slides with the sliding chamber, and support arms are hinged on all sides of the bottom of the slide seat, the other end of the support arm is hinged to a sampling plate that is clamped with the sampling port, and the sampling plate and the sampling pile are movably connected by a hinge.

[0013] Preferably: the positioning piles and sampling piles are distributed in a triangular equidistant state along the longitudinal axis of the side frame, and the side frame is provided with a slide rail groove that slides with the bracket, and the top of the sampling pile is integrally formed with a threaded end, and the outer thread of the threaded end is connected to a tightening head that is fixedly matched with the bracket.

[0014] Preferably: a large sliding sleeve that slides in cooperation with the sampling pile is fixedly connected to the outer side of the base frame close to the side frame, and small sliding sleeves that slide in cooperation with the positioning pile are fixedly connected to both sides of the base frame away from the large sliding sleeve, and scraping rings used in conjunction with the sampling pile and the positioning pile are fixedly connected on the upper and lower sides of the large sliding sleeve and the small sliding sleeve.

[0015] Preferably: a secondary sample storage chamber is provided at the bottom of the inner cavity of the sampling pile, and guide rail grooves are vertically provided around the sampling pile near the secondary sample storage chamber. The bottom of the slide passes through the primary sample storage chamber and is fixedly connected to a T-shaped push rod.

[0016] Preferably: the inner cavity of the guide rail groove is slidably connected to a guide rail bar fixedly matched with the T-shaped push rod, and the bottom of the guide rail bar is fixedly connected to a pointed cone head used in conjunction with the sampling pile, and the top of the pointed cone head is fixedly connected to a sealing convex ring that is clamped with the secondary sample storage chamber.

[0017] Preferably: a side tube staggered with the side frame is fixedly connected between the bottom frame and the top frame, and a three-stage cylinder is embedded in the inner cavity of the side tube, the piston rod of the three-stage cylinder is fixedly connected to a support foot, and mounting holes are opened around the support foot.

[0018] Preferably, a hanging frame fixedly matched with the servo motor is fixedly connected to the top of the top frame, and a three-color warning light is fixedly connected to the outside of the piston cylinder.

[0019] The soil sampling device for environmental geological exploration of the present invention has the following advantages:

[0020] 1. This soil sampling device for environmental geological exploration is first driven by a servo motor, and an electric push rod adjusts the meshing stroke between the main circular gear and three sets of slave circular gears. Then, three threaded thick rods drive the sampling piles and positioning piles on the three sets of brackets through threaded sleeves to stably insert them into the ground, thereby realizing stable insertion of geological exploration phenomena and facilitating subsequent soil sampling work.

[0021] 2. This soil sampling device for environmental geological exploration, first, the main bevel gear drives the cams on the three sets of secondary bevel gears to rotate, and the three sets of cams drive the pistons on the three connecting rods to perform reciprocating work in the three sets of piston cylinders. The boost pressure generated in the three sets of piston cylinders is supplied through the boost pipes on the three sets of three-way valves into the three telescopic tubes that follow the positioning piles to rise and fall, providing a boost air source supply for the soil sampling work on the three positioning piles. After the soil sampling is completed, the three pressure relief pipes are used to relieve the pressure, providing convenience for resetting the soil samples collected in the three positioning piles.

[0022] 3. This is a soil sampling device for environmental geological exploration. Then, under the action of the boost pressure force in the boost chamber supplied to the three positioning piles, the T-shaped slide bar is forced to slide down in the sliding chamber and compress the reset spring. The sampling plates on the three arms are then driven by the slide seat to detach from the sampling port and expand outward. After the surrounding soil falls into the primary sample storage chamber, it is first pressure-relieved through three pressure relief pipes. Then, under the action of the elastic reset force of the reset spring, the sampling plate is forced to move inward and get stuck in the sampling port to seal the primary sample storage chamber. The three positioning piles are pulled out to obtain uncontaminated soil samples, thereby improving the qualified rate of soil samples and the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a diagram showing the initial state of the structure of a soil sampling device for environmental geological exploration according to the present invention;

[0025] Figure 2 This is a diagram showing the structural stability of a soil sampling device for environmental geological exploration according to the present invention;

[0026] Figure 3 This is a diagram showing the structure of a soil sampling device for environmental geological exploration according to the present invention;

[0027] Figure 4 This is a diagram showing the structure and sampling state of a soil sampling device for environmental geological exploration according to the present invention;

[0028] Figure 5 This is a partial cross-sectional view of the structure of an environmental geological survey soil sampling device of the present invention;

[0029] Figure 6 This is a partial internal view of the structure of an environmental geological survey soil sampling device of the present invention;

[0030] Figure 7 This is a diagram showing the initial state of the plug assembly structure of the present invention;

[0031] Figure 8 This is a working state diagram of the plug assembly structure of the present invention;

[0032] Figure 9 A bottom view of the plug assembly structure of the present invention;

[0033] Figure 10 This is an exploded view of the plug assembly structure of the present invention;

[0034] Figure 11 It is a side cross-sectional view of the piston cylinder, servo motor, positioning pile, booster assembly and sampling assembly structure of the present invention;

[0035] Figure 12 A bottom-view cross-sectional view of the piston cylinder, servo motor, and booster assembly structure of the present invention;

[0036] Figure 13 A side cross-sectional view of the piston cylinder and booster assembly structure of the present invention;

[0037] Figure 14This is a cross-sectional view of the positioning pile, pressurizing assembly and sampling assembly structure of the present invention;

[0038] Figure 15 A bottom-view cross-sectional view of the positioning pile and sampling assembly structure of the present invention;

[0039] Figure 16 A top view of the sampling assembly structure of the present invention;

[0040] Figure 17 A side cross-sectional view of the positioning pile and sampling assembly structure of the present invention;

[0041] Figure 18 This is a diagram showing the initial state of the servo motor, electric push rod and stabilizing assembly structure of the present invention;

[0042] Figure 19 This is a working state diagram of the servo motor, electric push rod and stabilizing assembly structure of the present invention;

[0043] Figure 20 A top view of the stabilizing assembly structure of the present invention;

[0044] Figure 21 A bottom view of the stabilizing assembly structure of the present invention;

[0045] Figure 22 This is a side exploded view of the structure of an environmental geological exploration soil sampling device of the present invention.

[0046] Explanation of the markings in the figure: 1. bottom frame; 2. side frame; 3. top frame; 4. piston cylinder; 51. servo motor; 52. electric push rod; 53. main circular gear; 54. slave circular gear; 55. threaded thick rod; 56. threaded sleeve; 57. bracket; 58. sampling pile; 59. positioning pile; 61. main bevel gear; 62. auxiliary bevel gear; 63. cam; 64. connecting rod; 65. piston; 66. three-way valve; 67. boost pipe; 68. telescopic pipe; 69. pressure relief pipe; 71. sampling port; 72. boost chamber; 73. sliding chamber; 74. first-stage storage Sample chamber; 75, T-shaped slide bar; 76, return spring; 77, slide seat; 78, support arm; 79, sampling plate; 81, rotating sleeve; 82, rotating shaft; 83, locking groove; 84, locking head; 85, screw rack; 86, drilling head; 87, stabilizing plate; 9, slide rail groove; 10, threaded end; 11, tightening head; 12, large slide sleeve; 13, small slide sleeve; 14, secondary sample storage chamber; 15, guide rail groove; 16, T-shaped push rod; 17, guide rail; 18, pointed cone head; 19, side cylinder; 20, three-stage cylinder; 21, support leg; 22, lifting frame. DETAILED DESCRIPTION

[0047] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments:

[0048] like Figure 1-Figure 22 As shown, a soil sampling device for environmental geological exploration of the present invention includes a base frame 1, the top of the base frame 1 is vertically fixedly connected to the side frame 2 and distributed in a triangular equidistant state, and the top of the side frame 2 is fixedly connected to the top of the top frame 3, and a side tube 19 staggered with the side frame 2 is fixedly connected between the base frame 1 and the top frame 3, and the inner cavity of the side tube 19 is embedded with a three-stage cylinder 20, and the piston rod of the three-stage cylinder 20 is fixedly connected to a support leg 21, and the support leg 21 is provided with mounting holes all around, so as to facilitate adaptive lifting and lowering adjustment and fixed support of the base frame 1 and the top frame 3 as a whole;

[0049] The outer sides of the top frame 3 are fixedly connected with piston cylinders 4 that are staggered with the side frames 2. The top of the top frame 3 is fixedly connected with a lifting frame 22 that is fixedly matched with a servo motor 51, which is convenient for lifting and moving the bottom frame 1 and the top frame 3 as a whole. A three-color alarm light is fixedly connected to the outer side of the piston cylinder 4 to provide an early warning of the operating status. The inner cavity of the top frame 3 is provided with a pile plugging assembly used in conjunction with the side frames 2. The pile plugging assembly includes a servo motor 51 fixed on the top frame 3, which realizes stable pile plugging of geological exploration phenomena and facilitates subsequent soil sampling work.

[0050] A booster assembly is provided on the piston cylinder 4, and the booster assembly includes a three-way valve 66 connected to the piston cylinder 4. The suction port of the three-way valve 66 is connected to the suction pipe, which provides convenience for resetting the soil samples collected in the three positioning piles 59. A sampling assembly used in conjunction with the pile assembly is provided on the outside of the booster assembly to obtain uncontaminated soil samples, thereby improving the qualification rate and sampling efficiency of the soil samples.

[0051] like Figure 7-Figure 17 As shown, the pile driving assembly also includes an electric push rod 52 embedded in the output shaft of the servo motor 51, and the piston rod of the electric push rod 52 is fixedly connected to the main circular gear 53, and the four sides of the inner cavity of the top frame 3 are rotatably connected to the slave circular gear 54 used in conjunction with the main circular gear 53. The servo motor 51 provides a unified driving source, and the electric push rod 52 adjusts the meshing stroke between the main circular gear 53 and the three sets of slave circular gears 54, and the inner cavity of the slave circular gear 54 is fixedly connected to the threaded part of the side frame 2 for rotation. Thick rod 55, threaded thick rod 55 is threadedly connected with threaded sleeve 56, and the outer side of threaded sleeve 56 is fixedly connected with bracket 57, the outer side of bracket 57 is fixedly connected with sampling pile 58, and both sides of bracket 57 away from sampling pile 58 are fixedly connected with positioning pile 59, and then three threaded thick rods 55 drive the sampling pile 58 and positioning pile 59 on three groups of brackets 57 to be stably inserted into the ground through threaded sleeve 56, so as to realize stable insertion of geological exploration phenomena and provide convenience for subsequent soil sampling work;

[0052] The positioning piles 59 and the sampling piles 58 are distributed in a triangular equidistant state along the longitudinal axis of the side frame 2, and a slide rail groove 9 is provided on the side frame 2 to slide with the bracket 57, which plays a role of sliding support for the bracket 57 and improves the lifting stability of the bracket 57. The top of the sampling pile 58 is integrally formed with a threaded end 10, and the outer thread of the threaded end 10 is connected to a tightening head 11 fixedly matched with the bracket 57, which is convenient for disassembly and assembly of the sampling pile 58. The bottom frame 1 is fixedly connected to the outer side of the side frame 2 with a sliding connection with the sampling pile 58. The large sliding sleeve 12 is matched with the base frame 1, and the two sides of the base frame 1 away from the large sliding sleeve 12 are fixedly connected with small sliding sleeves 13 that slide in cooperation with the positioning pile 59, which respectively play the role of sliding support for the sampling pile 58 and the positioning pile 59, further improving the pile insertion stability of the sampling pile 58 and the positioning pile 59 and preventing them from tilting and shifting. The upper and lower sides of the large sliding sleeve 12 and the small sliding sleeve 13 are fixedly connected with scraping rings used in conjunction with the sampling pile 58 and the positioning pile 59 to scrape off the soil adhering to the sampling pile 58 and the positioning pile 59.

[0053] The boost assembly also includes a main bevel gear 61 fixed to the output shaft of the servo motor 51, and the bottom of the main bevel gear 61 is meshed with a sub-bevel gear 62. The outer side of the sub-bevel gear 62 is fixedly connected to a cam 63 through a fixed rod. The main bevel gear 61 drives the cams 63 on the three groups of sub-bevel gears 62 to rotate, and the outer side of the cam 63 is movably connected to a connecting rod 64 through a convex head. The connecting rod 64 is hinged with a piston 65 that slides with the piston cylinder 4. The three groups of cams 63 drive the pistons 65 on the three connecting rods 64 to perform reciprocating work in the three groups of piston cylinders 4. The exhaust port of the three-way valve 66 is connected to a boosting pipe 67, and the outer end of the boosting pipe 67 is connected to a telescopic pipe 68. The boosted pressure generated in the three groups of piston cylinders 4 is supplied to the three telescopic pipes 68 that rise and fall with the positioning piles 59 through the boosting pipes 67 on the three groups of three-way valves 66, providing a boosted air source supply for the soil sampling work on the three positioning piles 59. The bottom end of the telescopic pipe 68 is connected to a pressure relief pipe 69 with a pressure relief valve. After the soil sampling is completed, the pressure is relieved by the three pressure relief pipes 69, providing a convenient reset for the soil samples collected in the three positioning piles 59.

[0054] The sampling assembly includes a sampling port 71 provided on the sampling pile 58, and the inner cavity of the sampling pile 58 is provided with a pressurized chamber 72, a sliding chamber 73 and a first-level sample storage chamber 74 from top to bottom. A T-shaped slide bar 75 is slidably connected to the pressurized chamber 72, and a return spring 76 is sleeved on the T-shaped slide bar 75. Under the action of the pressurized pressure in the pressurized chamber 72 supplied to the three positioning piles 59, the T-shaped slide bar 75 is forced to slide down in the sliding chamber 73 and compress the return spring 76. The bottom of the T-shaped slide bar 75 is fixedly connected to a slide seat 77 that slides with the sliding chamber 73, and the bottom of the slide seat 77 is hinged with support arms 78 on all sides. The support arms 78 The other end is hinged with a sampling plate 79 that is engaged with the sampling port 71, and the sampling plate 79 and the sampling pile 58 are movably connected by a hinge. The sampling plate 79 on the three supporting arms 78 is driven by the slide 77 to separate from the sampling port 71 and expand outward, and the surrounding soil falls into the primary sample storage chamber 74. After completing a soil sample collection, it is first pressure-relieved through the three pressure-relief pipes 69, and then the elastic restoring force of the restoring spring 76 forces the sampling plate 79 to move inward and be stuck in the sampling port 71 to seal the primary sample storage chamber 74. The three positioning piles 59 can be pulled out to obtain a contaminated soil sample, thereby improving the qualified rate of soil samples and the sampling efficiency.

[0055] A secondary sample storage chamber 14 is provided at the bottom of the inner cavity of the sampling pile 58, and guide rail grooves 15 are vertically provided on all sides of the sampling pile 58 near the secondary sample storage chamber 14. The bottom of the slide 77 passes through the primary sample storage chamber 74 and is fixedly connected to a T-shaped push rod 16. The inner cavity of the guide rail groove 15 is slidably connected to a guide rail bar 17 fixedly matched with the T-shaped push rod 16, and the bottom of the guide rail bar 17 is fixedly connected to a pointed cone head 18 used in conjunction with the sampling pile 58, so that the soil at the bottom of the sampling pile 58 is collected again to increase the soil collection volume. The top of the pointed cone head 18 is fixedly connected to a sealing convex ring that is engaged with the secondary sample storage chamber 14, which plays a sealing role between the sampling pile 58 and the pointed cone head 18 in the sealed state to prevent the re-collected soil sample from falling off.

[0056] like Figures 18-21As shown, during the soil sampling at the geological survey site, the sampling equipment needs to be positioned, and most of the time it is manually supported with the help of supporting tools, which is rather troublesome. A stabilizing component is provided at the bottom of the base frame 1, and the stabilizing component includes a rotating sleeve 81 fixed to the inner side of the side frame 2, the inner cavity of the rotating sleeve 81 is rotatably connected to a rotating shaft 82 that rotates with the base frame 1, and a locking groove 83 is provided at the top of the inner cavity of the rotating shaft 82, and a locking head 84 used in conjunction with the locking groove 83 is fixedly connected to the center of the bottom of the main circular gear 53, and the bottom of the rotating shaft 82 is fixedly connected to a spiral frame 85, and the bottom of the spiral frame 85 is fixedly connected There is a drilling head 86, and stabilizing plates 87 are fixed on all sides of the spiral frame 85 in an interlaced manner with the spiral leaves. The electric push rod 52 first drives the locking head 84 through the main circular gear 53 to insert it into the locking groove 83 on the rotating shaft 82, and then the servo motor 51 drives the rotating shaft 82 to rotate in the rotating sleeve 81 through the locking head 84 that is clamped in place. The rotating shaft 82 drives the spiral frame 85 and the drilling head 86 to drill into the ground, and the stabilizing plates 87 expand the supporting area of ​​the spiral frame 85 and reversely resist the soil on the surface, thereby providing auxiliary stabilization for the base frame 1 and the top frame 3 as well as the whole, which is conducive to the smooth implementation of pile insertion and sampling work at the geological exploration site.

[0057] The working principle of a soil sampling device for environmental geological exploration is as follows: first, the bottom frame 1 and the top frame 3 and their entirety are hoisted to the geological exploration site through the hoisting frame 22 with the help of hoisting equipment, and then the three legs 21 are fixed to the site by bolts. Then, the electric push rod 52 is controlled to open and the locking head 84 is driven to move downward and inserted into the locking groove 83 on the rotating shaft 82 through the main circular gear 53. Then, the servo motor 51 is controlled to open and the locking head 84 that is clamped in place is used to drive the rotating shaft 82 to rotate in the rotating sleeve 81. The rotating shaft 82 drives the spiral frame 85, the drilling head 86 and the stabilizing plate 87 to rotate synchronously. At the same time, , control the three-stage cylinder 20 in the three side tubes 19 to move linearly downward. Since the three supporting legs 21 are fixed to the ground, the three-stage cylinder 20 that moves linearly downward drives the bottom frame 1 and the top frame 3 and their entirety to move downward, and the spiral frame 85 and the drilling head 86 also drill into the ground immediately, and the stabilizing plate 87 expands the contact area between the spiral frame 85 and the ground, and reversely resists the soil in the drilled area until the bottom frame 1 is in stable contact with the ground. First, control the servo motor 51 to pause, then control the electric push rod 52 to turn off, and drive the locking head 84 to move upward through the main circular gear 53 to disengage the locking groove 83 on the rotating shaft 82 to the initial position;

[0058] Next, the electric push rod 52 is controlled to turn on and drive the main circular gear 53 to move down and get into engagement with the three groups of circular gears 54. Then, the servo motor 51 is controlled to turn on again and the main circular gear 53 engaged in engagement drives the threaded thick rods 55 on the three groups of circular gears 54 to rotate. The three threaded thick rods 55 drive the brackets 57 on the three groups of threaded sleeves 56 to move down accordingly. The three groups of brackets 57 drive the three groups of sampling piles 58 and positioning piles 59 in a triangular equidistant state to be inserted downward into the ground surface. The positioning piles 59 provide stable support for the sampling piles 58. After the three groups of sampling piles 58 are inserted into the ground surface to a predetermined depth, the servo motor 51 is controlled to pause first, and then the electric push rod 52 is controlled to turn off and drive the main circular gear 53 to move up and get out of engagement with the three groups of circular gears 54 to the initial position. At this point, the stable insertion of the three groups of sampling piles 58 and positioning piles 59 is completed.

[0059] Then, the servo motor 51 is controlled to be continuously turned on and the cams 63 on the three groups of auxiliary bevel gears 62 are driven to rotate through the main bevel gear 61. The three groups of cams 63 drive the pistons 65 on the three connecting rods 64 to reciprocate in the three groups of piston cylinders 4. After the boost pressure is generated in the three groups of piston cylinders 4, the boost pipes 67 on the three groups of three-way valves 66 are supplied to the boost chamber 72 above them through the telescopic tubes 68 that follow the rise and fall of the three sampling piles 58. Then, the boost pressure is continuously supplied. Under the action of the boost pressure, the three T-shaped slide bars 75 are forced to slide down in the sliding chamber 73 and compress the three return springs 76. The three T-shaped slide bars 75 drive the three groups of slide seats 77 to slide down. The seat 77 drives the sampling plates 79 on the three groups of support arms 78 to separate from the sampling port 71 and expand outward to be inserted into the surrounding soil. At this time, the three sampling piles 58 are inserted into the soil to a predetermined depth and fall into the primary sample storage chamber 74 due to the stress. At the same time, the three groups of slide seats 77 drive the three T-shaped push rods 16 to move downward under the sliding limit cooperation of the guide rails 17 and the guide grooves 15 on the conical heads 18. The three T-shaped push rods 16 drive the three groups of conical heads 18 to be inserted downward through the three groups of guide rails 17, so that the three groups of guide rails 17 are exposed below the three sampling piles 58. At this time, the three sampling piles 58 are inserted into the soil to a predetermined depth and fall into the space formed between the three groups of guide rails 17 and the conical heads 18 exposed to the outside.

[0060] After the three soil samples are taken, the pressure relief valves on the three pressure relief pipes 69 are first controlled to open, and the pressurized gas source in the pressurized chamber 72 of the three sampling piles 58 is discharged through the three pressure relief pipes 69. After the pressure is released, the three T-shaped slide bars 75 are forced to slide upward under the elastic restoring force of the three return springs 76, forcing the three sets of slide seats 77 to slide upward and drive the sampling plates 79 on the three sets of support arms 78 to move inward and be stuck in the sampling port 71, so as to collect the gas in the primary storage chamber 74. At the same time, the three sets of slides 77 that slide upward drive the three sets of guide rails 17 and the pointed cone heads 18 on the three T-shaped push rods 16 to pull upward, forcing the three sets of guide rails 17 and the pointed cone heads 18 to pull up to the secondary sample storage chamber 14 in the three sampling piles 58, and the three sets of pointed cone heads 18 block the bottoms of the three sampling piles 58, so that the soil collected in the space formed between the three sets of guide rails 17 and the pointed cone heads 18 is temporarily stored in the secondary sample storage chamber In the chamber 14, the three sampling piles 58 are first controlled to be pulled out of the ground to the initial position, and then the spiral frame 85, the drilling head 86 and the stabilizing plate 87 are controlled to reverse and separate from the ground. At the same time, the three three-stage cylinders 20 also drive the bottom frame 1 and the top frame 3 as a whole to move up to the initial position. At this time, the boost pressure generated in the three groups of piston cylinders 4 is controlled to be re-supplied into the boost chamber 72 in the three reset state sampling piles 58. Similarly, the three groups of sampling plates 79 are forced to extend outward and separate from the sampling port 71, exposing the first-level sample storage chamber 74. After the three groups of guide bars 17 and the three groups of conical heads 18 move downward and separate from the second-level sample storage chamber 14, the soil samples in the first-level sample storage chamber 74 and the soil samples in the three groups of guide bars 17 and the three groups of conical heads 18 after separating from the second-level sample storage chamber 14 are taken out respectively. After all three collected soil samples are taken out, the three groups of sampling plates 79 and the conical heads 18 are reset to wait for the next soil sampling work.

[0061] It should be noted that the specific models and specifications of the servo motor 51, the electric push rod 52 and the three-stage cylinder 20 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be repeated in detail.

[0062] The power supply circuits of the servo motor 51 , the electric push rod 52 , the three-stage cylinder 20 , and various valves are clear to those skilled in the art and will not be described in detail here.

[0063] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A soil sampling device for environmental geological exploration, comprising a base frame (1), characterized in that: The top of the bottom frame (1) is vertically fixedly connected to the side frames (2) and is distributed in a triangular equidistant state, and the top of the side frames (2) is fixedly connected to the top frame (3); The outer sides of the top frame (3) are fixedly connected with piston cylinders (4) staggered with the side frames (2), and the inner cavity of the top frame (3) is provided with a pile assembly used in conjunction with the side frames (2), and the pile assembly includes a servo motor (51) fixed on the top frame (3); The piston cylinder (4) is provided with a booster assembly, and the booster assembly includes a three-way valve (66) connected to the piston cylinder (4), the air intake of the three-way valve (66) is connected to the air intake pipe, and a sampling assembly used in conjunction with the pile assembly is provided on the outside of the booster assembly, the sampling assembly includes a sampling port (71) opened on the sampling pile (58), and the inner cavity of the sampling pile (58) is provided with a booster chamber (72), a sliding chamber (73) and a first-level sample storage chamber (74) from top to bottom, the booster chamber (72) is slidably connected with a T-shaped slide rod (75), and the T-shaped slide rod (75) is provided with a reset spring (76), the bottom of the T-shaped slide rod (75) is fixedly connected with a slide seat (77) that slides with the sliding chamber (73), and the bottom of the slide seat (77) is hinged with support arms (78) on all sides. The other end of the support arm (78) is hingedly connected to a sampling plate (79) that is clamped to the sampling port (71), and the sampling plate (79) and the sampling pile (58) are movably connected via a hinge. A stabilizing assembly is provided at the bottom of the base frame (1), and the stabilizing assembly includes a rotating sleeve (81) fixed to the inner side of the side frame (2). The inner cavity of the rotating sleeve (81) is rotatably connected to a rotating shaft (82) that is rotatably matched with the base frame (1), and a locking groove (83) is provided at the top of the inner cavity of the rotating shaft (82). A locking head (84) used in conjunction with the locking groove (83) is fixedly connected to the center of the bottom of the main circular gear (53), and a spiral frame (85) is fixedly connected to the bottom of the rotating shaft (82). The bottom of the spiral frame (85) is fixedly connected to a drilling head (86), and the spiral frame (85) is fixedly fixed with stabilizing plates (87) interlaced with the spiral leaves on all sides.

2. The soil sampling device for environmental geological exploration according to claim 1, characterized in that: The pile insertion assembly also includes an electric push rod (52) embedded in the output shaft of the servo motor (51), and the piston rod of the electric push rod (52) is fixedly connected to the main circular gear (53), and the inner cavity of the top frame (3) is rotatably connected to the slave circular gear (54) used in conjunction with the main circular gear (53), and the inner cavity of the slave circular gear (54) is fixedly connected to a threaded thick rod (55) that rotatably cooperates with the side frame (2), the threaded thick rod (55) is threadedly connected to a threaded sleeve (56), and the outer side of the threaded sleeve (56) is fixedly connected to a bracket (57), the outer side of the bracket (57) is fixedly connected to a sampling pile (58), and both sides of the bracket (57) away from the sampling pile (58) are fixedly connected to positioning piles (59).

3. The soil sampling device for environmental geological exploration according to claim 2, characterized in that: The boost assembly further comprises a main bevel gear (61) fixed on the output shaft of the servo motor (51), and a secondary bevel gear (62) is meshed at the bottom of the main bevel gear (61), the outer side of the secondary bevel gear (62) is fixedly connected to a cam (63) via a fixed rod, and the outer side of the cam (63) is movably connected to a connecting rod (64) via a protruding head, a piston (65) is hinged on the connecting rod (64) and is slidably matched with the piston cylinder (4), and the exhaust port of the three-way valve (66) is connected to a boost pipe (67), the outer end of the boost pipe (67) is connected to a telescopic pipe (68), and the bottom end of the telescopic pipe (68) is connected to a pressure relief pipe (69) with a pressure relief valve.

4. The soil sampling device for environmental geological survey according to claim 3, characterized in that: The positioning piles (59) and the sampling piles (58) are distributed in a triangular equidistant state along the longitudinal axis of the side frame (2), and a slide rail groove (9) is provided on the side frame (2) for slidingly cooperating with the bracket (57), and the top of the sampling pile (58) is integrally formed with a threaded end (10), and the outer side of the threaded end (10) is connected to a tightening head (11) fixedly cooperating with the bracket (57).

5. The soil sampling device for environmental geological survey according to claim 4, characterized in that: The outer side of the base frame (1) close to the side frame (2) is fixedly connected to a large sliding sleeve (12) that is slidably matched with the sampling pile (58), and the two sides of the base frame (1) away from the large sliding sleeve (12) are fixedly connected to small sliding sleeves (13) that are slidably matched with the positioning pile (59), and the upper and lower sides of the large sliding sleeve (12) and the small sliding sleeve (13) are fixedly connected to scraping rings used in conjunction with the sampling pile (58) and the positioning pile (59).

6. The soil sampling device for environmental geological survey according to claim 5, characterized in that: A secondary sample storage chamber (14) is provided at the bottom of the inner cavity of the sampling pile (58), and guide rail grooves (15) are vertically provided on all sides of the sampling pile (58) near the secondary sample storage chamber (14). The bottom of the sliding seat (77) passes through the primary sample storage chamber (74) and is fixedly connected to a T-shaped push rod (16).

7. The soil sampling device for environmental geological survey according to claim 6, characterized in that: The inner cavity of the guide rail groove (15) is slidably connected to a guide rail bar (17) fixedly matched with the T-shaped push rod (16), and the bottom of the guide rail bar (17) is fixedly connected to a pointed cone head (18) used in conjunction with the sampling pile (58), and the top of the pointed cone head (18) is fixedly connected to a sealing convex ring that is clamped with the secondary sample storage chamber (14).

8. The soil sampling device for environmental geological survey according to claim 7, characterized in that: A side tube (19) staggered with the side frame (2) is fixedly connected between the bottom frame (1) and the top frame (3), and a three-stage cylinder (20) is embedded in the inner cavity of the side tube (19). The piston rod of the three-stage cylinder (20) is fixedly connected to a support foot (21), and mounting holes are opened around the support foot (21).

9. The soil sampling device for environmental geological survey according to claim 8, characterized in that: The top of the top frame (3) is fixedly connected to a hanging frame (22) fixedly matched with the servo motor (51), and the outer side of the piston cylinder (4) is fixedly connected to a three-color warning light.

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