A detection sampling device for geological exploration

Abstract

The present invention relates to the field of geological exploration technology, and specifically to a detection and sampling device for geological exploration, comprising a bracket, a sliding platform is provided on the front side of the bracket for sliding up and down, a drilling rig is fixedly installed on the front side of the sliding platform, and a soil sampler is connected to the lower part of the drilling rig through a drill rod. The sampling device also includes a connecting mechanism for quickly connecting the drill rod, the soil sampler and the drilling rig. The present invention adopts a hexagonal column to be inserted into the inside of the hexagonal hole of the columnar member, so that the soil sampler and the drill rod, the drill rod and the drill rod, and the drill rod and the drilling rig are arranged coaxially, and then the moving block automatically extends into the rectangular groove of the columnar member, so that the hexagonal column and the columnar member are fixedly connected into a whole, simplifying the traditional connection process and improving the sampling efficiency. The present invention adopts a stabilizing component to automatically perform a preliminary connection between the hexagonal column and the columnar member when the hexagonal column is inserted into the inside of the hexagonal hole of the columnar member, thereby increasing the stability of the connection.

Description

Technical Field

[0001] The present invention relates to the technical field of geological exploration, in particular to a detection and sampling device for geological exploration. Background Art

[0002] The primary purpose of geological survey sampling is to obtain accurate information on underground geological conditions, mineral resource distribution, and quality. Sampling and analysis can reveal the physical and chemical properties of rocks, soil, and groundwater, assess the economic value of potential mineral resources, and provide a scientific basis for subsequent exploration and development. Existing technology typically uses a soil sampler to extract soil samples. During sampling, the sampler is mounted on a drill rig and inserted into the soil through the drill, allowing the soil sample to form a column inside the sampler. The sampler is then pulled out of the soil, completing the sampling process.

[0003] In order to extract undisturbed original soil samples, drilling rigs generally use high-frequency impact drilling, pressing the soil sampler into the soil layer by direct push. No rotary drilling is required, and it can quickly drill into soil layers, sand layers, water-containing soft soil layers and silt sediments.

[0004] When sampling deep soil, multiple drill rods are usually connected between the drill rig and the soil sampler. The penetration depth of the soil sampler is extended by connecting the drill rods one by one. However, threaded connections are generally used between drill rods and between drill rods and soil samplers, which makes the connection and disassembly process more cumbersome and reduces the efficiency of sampling. In addition, when using traditional methods to disassemble multiple connected drill rods, the drill rods need to be rotated, which easily leads to the phenomenon of multiple drill rods rotating synchronously, causing drill rods that do not need to be disassembled to become loose or even fall off. Summary of the Invention

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a detection and sampling device for geological exploration, including a bracket, a sliding platform is provided on the front side of the bracket for sliding up and down, a drilling rig is fixedly installed on the front side of the sliding platform, and the lower part of the drilling rig is connected to a soil sampler through a drill rod. The sampling device also includes a connecting mechanism for quickly connecting the drill rod, the soil sampler and the drilling rig.

[0006] The connecting mechanism includes a columnar member fixedly installed on the upper end of the soil extractor and the upper end of the drill rod, and a hexagonal column is fixedly installed on the lower end of the drilling rig and the lower end of the drill rod. A hexagonal hole for inserting the hexagonal column is opened at the upper and lower axis positions of the columnar member, and moving blocks are slidably provided on the three outer surfaces of the hexagonal column. The moving blocks slide in a direction perpendicular to the corresponding sides of the hexagonal column. The moving blocks on the same hexagonal column are arranged at equal intervals, and rectangular grooves for inserting the moving blocks are opened on the six inner surfaces of the hexagonal hole.

[0007] The connecting mechanism also includes a stabilizing assembly for assisting operators in connecting multiple drill rods, an anti-drop assembly for removing the drill rods one by one from top to bottom, and a locking assembly for controlling the movement of the moving block.

[0008] As a preferred technical solution of the present invention, the locking assembly includes a triangular rod slidably arranged inside the hexagonal column, and three outer surfaces of the triangular rod are fixedly mounted with right-angled trapezoidal blocks for pushing and pulling the moving block.

[0009] As a preferred technical solution of the present invention, the inclined surface of the right-angled trapezoidal block gradually tilts toward the outside from top to bottom, and the inner side of the moving block is an inclined surface gradually tilted toward the inside from bottom to top. The inclined surface of the right-angled trapezoidal block is slidably connected with the inclined surface of the moving block at the corresponding position.

[0010] As a preferred technical solution of the present invention, an electric push rod is fixedly installed inside the shaft of the drilling rig, and a spring telescopic rod is fixedly installed at the lower part of the telescopic section of the electric push rod. The lower end of the telescopic section of the spring telescopic rod is inserted into the lower part of the hexagonal column connected to the drilling rig, and a through hole is opened in the upper and lower parts of the triangular rod inside the hexagonal column connected to the drilling rig for the insertion of the telescopic section of the spring telescopic rod.

[0011] As a preferred technical solution of the present invention, the lower side of the hexagonal column and the upper side of the hexagonal hole are both chamfered, a push spring is provided between the lower side of the right-angled trapezoidal block and the hexagonal column, and the lower outer side of the moving block is chamfered.

[0012] As a preferred technical solution of the present invention, the stabilizing assembly includes a locking rod arranged inside each rectangular groove along the radial sliding of the columnar member, a compression spring is arranged between the locking rod and the columnar member, the inward end of the locking rod is a dome-shaped structure, and hemispherical grooves for inserting the locking rod are provided on the three surfaces of the outside of the hexagonal column without moving blocks.

[0013] As a preferred technical solution of the present invention, an insertion hole for inserting the locking rod is opened on the outer surface of the moving block. When the dome structure of the locking rod is inserted into the hemispherical groove, the compression spring is in a naturally extended state.

[0014] As a preferred technical solution of the present invention, the anti-drop component includes a moving rod that slides up and down inside the drill rod. The length of the moving rod is equal to that of the drill rod. A coil spring is provided between the moving rod and the drill rod to push the upper end of the moving rod to be flush with the upper end of the drill rod. The upper part of the moving rod and the upper part of the drill rod are jointly provided with a limiting part for locking the position of the moving rod.

[0015] As a preferred technical solution of the present invention, the limiting part includes two symmetrically arranged limiting blocks that are arranged inside the drill rod for left and right sliding. A tension spring is arranged between the limiting blocks and the drill rod, and two symmetrically arranged follower blocks are fixedly installed on the upper outer side of the drill rod.

[0016] As a preferred technical solution of the present invention, the limiting part also includes two square rods arranged symmetrically on the left and right inside the drill rod for sliding up and down. The lower part of the square rod is an inclined surface that gradually tilts from top to bottom toward the outside, and the lower part of the hexagonal column connected to the drilling rig is provided with a clearance groove for the square rod to move upward.

[0017] The beneficial effects of the present invention are: 1. The present invention uses a hexagonal column to be inserted into the hexagonal hole of the columnar member, so that the soil sampler and the drill rod, the drill rod and the drill rod, and the drill rod and the drilling rig are arranged coaxially, and then the moving block automatically extends into the rectangular groove of the columnar member, so that the hexagonal column and the columnar member are fixedly connected into a whole, simplifying the traditional connection process and improving the efficiency of sampling.

[0018] 2. The present invention adopts a stabilizing assembly that can automatically perform a preliminary connection between the hexagonal column and the columnar member when the hexagonal column is inserted into the hexagonal hole of the columnar member, thereby increasing the stability of the connection; and when the moving block extends into the rectangular groove, the locking rod in the stabilizing assembly can also be inserted into the moving block, thereby further enhancing the connection stability of the moving block inside the rectangular groove.

[0019] 3. The present invention adopts an anti-drop component in conjunction with a locking component to lock the connection of the drill rods at the bottom among multiple drill rods connected together, so that when the uppermost drill rod is not removed, the drill rods below the uppermost drill rod are fixedly connected into a whole. When removing the drill rods, the drill rods can only be removed one by one from top to bottom, thereby preventing the drill rods that do not need to be removed from loosening or even falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and examples.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the local structure when the drill rod and the soil sampler are separated in the present invention.

[0023] Figure 3 It is a partial cross-sectional view of the drill rod and the earth sampler when they are connected together in the present invention.

[0024] Figure 4 It is a partial cross-sectional view of the drill rod, columnar member, hexagonal column, triangular rod, right-angled trapezoidal block, moving block and locking rod in the present invention.

[0025] Figure 5 It is a structural schematic diagram of the drill rod and the connecting mechanism thereon in the present invention.

[0026] Figure 6 It is a fracture cross-sectional view of the hexagonal column pushing the square rod in the present invention.

[0027] Figure 7 It is a partial cross-sectional view of a hexagonal column connected to a drilling rig making way for a counterpart rod through a making way groove in the present invention.

[0028] Figure 8 It is a partial cross-sectional view of the drilling rig, electric push rod, spring telescopic rod, hexagonal column, triangular rod and clearance groove in the present invention.

[0029] In the figure: 1. bracket; 2. sliding table; 3. drilling rig; 4. drill rod; 5. soil sampler; 6. connecting mechanism; 61. columnar member; 62. hexagonal column; 63. hexagonal hole; 64. moving block; 65. rectangular groove; 66. stabilizing component; 67. anti-drop component; 68. locking component; 69. electric push rod; 661. locking rod; 662. hemispherical groove; 663. insertion hole; 671. moving rod; 672. limiting part; 681. triangular rod; 682. right-angle trapezoidal block; 691. spring telescopic rod; 6721. limiting block; 6722. follower block; 6723. square rod; 6724. clearance groove. DETAILED DESCRIPTION

[0030] The following embodiments of the present invention are described in detail. The embodiments described below are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, the techniques or conditions described in the literature in the art or in the product specifications shall be followed.

[0031] See Figure 1 and Figure 5 A detection and sampling device for geological exploration includes a bracket 1, a sliding platform 2 is provided on the front side of the bracket 1 for sliding up and down, a drilling rig 3 is fixedly installed on the front side of the sliding platform 2, and a soil sampler 5 is connected to the lower part of the drilling rig 3 through a drill rod 4. The sampling device also includes a connecting mechanism 6 for quickly connecting the drill rod 4, the soil sampler 5 and the drilling rig 3.

[0032] When soil sampling is required, the bracket 1 is first fixedly installed at the designated sampling position, so that the bracket 1 drives the drill rig 3 through the sliding platform 2 to be located directly above the sampling position, and then the drill rod 4 is connected to the soil sampler 5 through the connecting mechanism 6 according to the sampling depth requirement, and then the drill rod 4 is connected to the drill rig 3 through the connecting mechanism 6, and then the drill rod 4 is pushed by the drill rig 3 to insert the soil sampler 5 into the soil.

[0033] Then the drilling rig 3 is separated from the drill rod 4, and a drill rod 4 is fixedly connected to the lower end of the drilling rig 3 through the connecting mechanism 6. Then the moving drilling rig 3 is connected to the uppermost drill rod 4 through the connecting mechanism 6, and then the drill rod 4 is pushed downward by the drilling rig 3 again to drive the soil sampler 5 to move downward.

[0034] The above process is repeated until the soil sampler 5 is inserted into the specified depth of the soil, and then the sliding platform 2 is moved upward. The sliding platform 2 drives the drill rod 4 and the soil sampler 5 to move upward synchronously through the drilling rig 3. Then, the drill rods 4 are removed one by one from top to bottom, so that the drill rods 4 pull the soil sampler 5 out of the soil, and then the soil is sampled.

[0035] See Figure 1 、 Figure 2 、 Figure 3 and Figure 5 The connecting mechanism 6 includes a columnar member 61 fixedly mounted on the upper end of the soil extractor 5 and the upper end of the drill rod 4. A hexagonal column 62 is fixedly mounted on the lower end of the drill rig 3 and the lower end of the drill rod 4. A hexagonal hole 63 for inserting the hexagonal column 62 is provided at the upper and lower axis positions of the columnar member 61. Moving blocks 64 are slidably provided on the three outer surfaces of the hexagonal column 62. The moving blocks 64 slide in a direction perpendicular to the corresponding edge of the hexagonal column 62. The moving blocks 64 on the same hexagonal column 62 are arranged at equal intervals. Rectangular grooves 65 for inserting the moving blocks 64 are provided on the six inner surfaces of the hexagonal hole 63.

[0036] See Figure 1 、 Figure 3 and Figure 4 The connecting mechanism 6 also includes a locking assembly 68 for controlling the movement of the movable block 64. The locking assembly 68 includes a triangular rod 681 that slides up and down inside the hexagonal column 62. The three outer surfaces of the triangular rod 681 are fixedly mounted with right-angled trapezoidal blocks 682 for pushing and pulling the movable block 64.

[0037] See Figure 4 The inclined surface of the right-angled trapezoidal block 682 gradually tilts outward from top to bottom, and the inner side of the moving block 64 is an inclined surface that gradually tilts inward from bottom to top. The inclined surface of the right-angled trapezoidal block 682 is slidably connected to the inclined surface of the moving block 64 at the corresponding position. Specifically, a protrusion with an isosceles trapezoidal cross-section is provided on the inclined surface of the right-angled trapezoidal block 682, and a sliding groove with an isosceles trapezoidal cross-section is provided on the inclined surface of the moving block 64. Through the sliding cooperation between the sliding groove and the protrusion, the right-angled trapezoidal block 682 and the moving block 64 can slide relative to each other along the inclined surface, but cannot slide relative to each other in the horizontal direction.

[0038] See Figure 2 、 Figure 3 and Figure 4The lower side of the hexagonal column 62 and the upper side of the hexagonal hole 63 are both provided with chamfers, a push spring is provided between the lower side of the right-angled trapezoidal block 682 and the hexagonal column 62, and the lower outer side of the moving block 64 is provided with a chamfer.

[0039] When it is necessary to connect the earth picker 5 to the drill rod 4, the operator lifts the drill rod 4 by hand-held or lifting equipment, so that the end of the drill rod 4 connected to the hexagonal column 62 is facing downward, and then the operator places the end of the earth picker 5 connected to the columnar member 61 upward and directly below the drill rod 4, while making the drill rod 4 directly below the drilling rig 3. Then the operator lowers the height of the drill rod 4, so that the drill rod 4 drives the hexagonal column 62 thereon to be inserted into the hexagonal hole 63 of the columnar member 61 on the earth picker 5.

[0040] The chamfers provided on the lower side of the hexagonal column 62 and the upper side of the hexagonal hole 63 facilitate the rapid alignment of the hexagonal column 62 and the hexagonal hole 63, thereby increasing the speed of insertion of the hexagonal column 62 and the hexagonal hole 63 and improving sampling efficiency.

[0041] The hexagonal column 62 drives the moving block 64 thereon to move synchronously, so that the upper edge of the hexagonal hole 63 contacts the chamfer on the moving block 64, so that the hexagonal hole 63 pushes all the moving blocks 64 on the hexagonal column 62 inward. While the moving block 64 moves, it pushes the right-angled trapezoidal block 682 downward. When the right-angled trapezoidal block 682 drives the triangular rod 681 to move downward synchronously, the push spring is compressed.

[0042] When the hexagonal column 62 is fully inserted into the interior of the hexagonal hole 63, the hexagonal column 62 drives the movable block 64 thereon to the position corresponding to the rectangular groove 65 on the columnar member 61, and then the push spring pushes the right-angled trapezoidal block 682 upward to the initial position through its own elastic force. The right-angled trapezoidal block 682 drives the movable block 64 to extend outward to the position of the rectangular groove 65, thereby fixing the hexagonal column 62 inside the hexagonal hole 63, and thereby fixing the drill rod 4 and the soil extractor 5 into a whole.

[0043] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6 The connecting mechanism 6 also includes a stabilizing assembly 66 for assisting the operator in connecting multiple drill rods 4. The stabilizing assembly 66 includes a locking rod 661 that is arranged inside each rectangular groove 65 along the radial sliding direction of the columnar member 61. A compression spring is provided between the locking rod 661 and the columnar member 61. The inward end of the locking rod 661 is a dome-shaped structure. The three surfaces on the outside of the hexagonal column 62 without the moving block 64 are provided with hemispherical grooves 662 for inserting the locking rod 661.

[0044] See Figure 3 and Figure 4An insertion hole 663 for inserting the locking rod 661 is provided on the outer surface of the moving block 64. When the dome structure of the locking rod 661 is inserted into the hemispherical groove 662, the compression spring is in a naturally extended state.

[0045] In the initial state, the compression spring is in a naturally extended state, and the compression spring drives the dome structure of the locking rod 661 to extend to the outside of the rectangular groove 65 in the direction close to the axis of the columnar member 61. When the hexagonal column 62 moves downward along the hexagonal hole 63 until it contacts the dome structure of the locking rod 661, the hexagonal column 62 pushes the locking rod 661 in the direction away from the axis of the columnar member 61 through the chamfer at its lower part.

[0046] When the hexagonal column 62 is fully inserted into the hexagonal hole 63, the locking rod 661 moves to the initial state under the push of the compression spring force, so that the dome structure of the locking rod 661 without the corresponding moving block 64 is inserted into the hemispherical groove 662 of the hexagonal column 62, and at the same time, the dome structure of the locking rod 661 corresponding to the moving block 64 is inserted into the insertion hole 663 of the moving block 64, and as the moving block 64 moves outward to extend into the rectangular groove 65, the locking rod 661 corresponding to the moving block 64 extends into the insertion hole 663, thereby further enhancing the connection stability between the hexagonal column 62 and the columnar member 61.

[0047] See Figure 7 and Figure 8 An electric push rod 69 is fixedly installed inside the shaft of the drilling rig 3, and a spring telescopic rod 691 is fixedly installed at the lower part of the telescopic section of the electric push rod 69. The lower end of the telescopic section of the spring telescopic rod 691 is inserted into the lower part of the hexagonal column 62 connected to the drilling rig 3, and a through hole is opened in the upper and lower parts of the triangular rod 681 inside the hexagonal column 62 connected to the drilling rig 3 for the telescopic section of the spring telescopic rod 691 to be inserted.

[0048] In the initial state, the telescopic section of the electric push rod 69 is in a retracted state, so that the lower end of the spring telescopic rod 691 is located at a position flush with the lower side surface of the hexagonal column 62 connected to the drilling rig 3.

[0049] When the drill rod 4 and the soil extractor 5 are fixedly connected together, the sliding platform 2 is moved downward, and the sliding platform 2 drives the drill rig 3 to move downward synchronously, so that the drill rig 3 drives the hexagonal column 62 thereon to insert into the columnar part 61 at the upper end of the uppermost drill rod 4. The principle is the same as above, thereby connecting the drill rig 3 and the drill rod 4 together, and then moving the sliding platform 2 downward to cooperate with the drill rig 3 to perform high-frequency impact on the drill rod 4, so that the drill rod 4 drives the soil extractor 5 to move deep into the soil.

[0050] See Figure 1 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 7The connecting mechanism 6 also includes an anti-drop component 67 for disassembling the drill rod 4 one by one from top to bottom. The anti-drop component 67 includes a moving rod 671 that is slidable up and down inside the drill rod 4. The length of the moving rod 671 is equal to that of the drill rod 4. A coil spring is provided between the moving rod 671 and the drill rod 4 to push the upper end of the moving rod 671 to be flush with the upper end of the drill rod 4. A convex plate is provided on the side wall of the moving rod 671, and a groove is provided inside the drill rod 4. The coil spring is fixedly installed between the convex plate and the groove. The upper part of the moving rod 671 and the upper part of the drill rod 4 are jointly provided with a limiting portion 672 for locking the position of the moving rod 671.

[0051] See Figure 4 、 Figure 6 and Figure 7 The limiting part 672 includes two symmetrically arranged limiting blocks 6721 that are set inside the drill rod 4 for left and right sliding. A tension spring is set between the limiting blocks 6721 and the drill rod 4. Two symmetrically arranged follower blocks 6722 are fixedly installed on the upper outer side of the moving rod 671.

[0052] See Figure 4 、 Figure 6 、 Figure 7 and Figure 8 The limiting portion 672 also includes two symmetrically arranged square rods 6723 that are slidably arranged inside the drill rod 4. The lower part of the square rod 6723 is an inclined surface that gradually tilts from top to bottom toward the outside. The lower part of the hexagonal column 62 connected to the drilling rig 3 is provided with a clearance groove 6724 for the square rod 6723 to move upward.

[0053] In the initial state, the coil spring pushes the moving rod 671 by its own elastic force, so that the upper end of the moving rod 671 is flush with the upper end of the drill rod 4, and at the same time, the lower end of the moving rod 671 is flush with the lower end of the drill rod 4. The tension spring pulls the limit block 6721 in the direction away from the axis of the drill rod 4 by its own tension, so that the limit block 6721 is located on the side of the follower block 6722 away from the axis of the drill rod 4. At the same time, the limit block 6721 pushes the square rod 6723 upward, so that the upper end of the square rod 6723 extends upward to the upper part of the drill rod 4.

[0054] When the hexagonal column 62 connected to the drilling rig 3 is fully inserted into the columnar part 61 on the uppermost drill rod 4, the drilling rig 3 drives the lower end of the spring telescopic rod 691 through the electric push rod 69 to rest against the upper end of the moving rod 671 inside the uppermost drill rod 4. At the same time, the upper part of the square rod 6723 extends into the makeshift groove 6724 of the hexagonal column 62 connected to the drilling rig 3, preventing the hexagonal column 62 connected to the drilling rig 3 from pushing the square rod 6723.

[0055] When the lower part of the drill rod 4 connected to the drilling rig 3 is mostly inserted into the soil, the telescopic section of the electric push rod 69 is extended, so that the electric push rod 69 drives the spring telescopic rod 691 to move downward, and the telescopic section of the spring telescopic rod 691 pushes the moving rod 671 inside the uppermost drill rod 4 downward, and the moving rod 671 pushes the triangular rod 681 on the same drill rod 4 downward, so that the triangular rod 681 drives the right-angled trapezoidal block 682 to move downward, and then the right-angled trapezoidal block 682 pulls the moving block 64 slidingly connected to its inclined surface to retract into the inside of the hexagonal column 62.

[0056] However, since the lower part of the soil extractor 5 is against the soil at this time, and the dome structure of the locking rod 661 at the corresponding position is still inserted into the hemispherical groove 662 and the insertion hole 663, the soil extractor 5 will not separate from the drill rod 4, and then continue to extend the telescopic section of the electric push rod 69. Since the hexagonal column 62 can no longer move downward, the moving rod 671 blocks the telescopic section of the spring telescopic rod 691, and the telescopic section of the spring telescopic rod 691 shrinks into the inside of its sleeve. Then the lower end face of the sleeve of the spring telescopic rod 691 is against the upper end face of the triangular rod 681 inside the hexagonal column 62 connected to the drilling rig 3.

[0057] The electric push rod 69 pushes downward the triangular rod 681 inside the hexagonal column 62 connected to the drilling rig 3, and the triangular rod 681 drives the moving block 64 to retract into the inside of the hexagonal column 62 connected to the drilling rig 3. Then the operator fixes the uppermost drill rod 4 through the existing drill rod clamp, and then moves the sliding table 2 upward. The sliding table 2 drives the hexagonal column 62 connected to the drilling rig 3 to be pulled out from the columnar member 61 connected to the uppermost drill rod 4, thereby separating the drilling rig 3 from the uppermost drill rod 4, and then retracts the telescopic section of the electric push rod 69 to the initial position.

[0058] Then the operator connects the new drill rod 4 to the upper end of the original uppermost drill rod 4 again, using the same principle as above, thereby increasing the overall length of the drill rod 4. At this time, the hexagonal column 62 on the upper drill rod 4 pushes the square rod 6723 on the lower drill rod 4, so that the square rod 6723 pushes the limit block 6721 to move to the lower side of the follower block 6722, so that all the moving rods 671 at the bottom of the uppermost drill rod 4 cannot move downward, thereby making all the drill rods 4 except the uppermost drill rod 4 stably connected to each other, and the lowermost drill rod 4 is stably connected to the soil extractor 5.

[0059] Then release the existing drill rod clamp, and then move the sliding platform 2 downward again, so that the drilling rig 3 is connected to the uppermost drill rod 4. The principle is the same as above, and then push the soil extractor 5 deeper into the soil again, and then repeat the above process of increasing the number of drill rods 4 until the soil extractor 5 moves to the specified depth of the soil, and then move the sliding platform 2 upward to pull the soil extractor 5 through the drill rod 4.

[0060] When the uppermost drill rod 4 is completely located above the soil, the second drill rod 4 from the top is clamped and fixed by the existing drill rod clamp, and then the telescopic section of the electric push rod 69 is extended to make the moving block 64 on the uppermost drill rod 4 shrink to the inside of the hexagonal column 62 at the corresponding position, and then the sliding table 2 is moved up again, so that the drilling rig 3 drives the uppermost drill rod 4 to separate from the second drill rod 4 from the top. Then the operator fixes the drill rod 4 connected to the drilling rig 3 by lifting equipment, and extends the telescopic section of the electric push rod 69 again to separate the drilling rig 3 from the drill rod 4 connected thereto.

[0061] Then repeat the above steps and pull out the soil sampler 5 to complete the soil sampling.

[0062] See Figures 1-8 When sampling soil at a specified depth, the present invention also includes the following steps: First, the bracket 1 is fixedly installed at the specified sampling position, and the operator lifts the drill rod 4 by hand-held or lifting equipment. Then, the operator places the end of the soil sampler 5 connected to the columnar member 61 upward and directly below the drill rod 4, and at the same time, the drill rod 4 is directly below the drilling rig 3.

[0063] In the second step, the operator lowers the height of the drill rod 4 so that the drill rod 4 drives the hexagonal column 62 thereon to be inserted into the hexagonal hole 63 of the columnar part 61 on the earth picker 5, and inserts the movable block 64 into the rectangular groove 65 corresponding to the columnar part 61, so that the drill rod 4 and the earth picker 5 are fixedly connected as a whole.

[0064] The third step is to move the sliding table 2 downward to drive the drill rig 3 to move downward synchronously, so that the drill rig 3 drives the hexagonal column 62 on it to insert into the columnar part 61 at the upper end of the uppermost drill rod 4, thereby connecting the drill rig 3 and the drill rod 4 together. Then, move the sliding table 2 downward to cooperate with the drill rig 3 to perform high-frequency impact on the drill rod 4, so that the drill rod 4 drives the soil extractor 5 to move deep into the soil.

[0065] In the fourth step, the telescopic section of the electric push rod 69 is extended, so that the triangular rod 681 on the drill rod 4 drives the moving block 64 thereon to retract into the inside of the hexagonal column 62, and then the telescopic section of the electric push rod 69 is continued to be extended, so that the moving block 64 on the drilling rig 3 is retracted into the inside of the hexagonal column 62.

[0066] In the fifth step, the operator fixes the uppermost drill rod 4 through the existing drill rod clamp, and then moves the sliding table 2 upward. The sliding table 2 drives the hexagonal column 62 connected to the drilling rig 3 to be pulled out from the inside of the columnar member 61 connected to the uppermost drill rod 4, thereby separating the drilling rig 3 from the uppermost drill rod 4, and then retracts the telescopic section of the electric push rod 69 to the initial position.

[0067] In the sixth step, the operator once again connects the new drill rod 4 to the upper end of the original uppermost drill rod 4, thereby increasing the overall length of the drill rod 4, and making all drill rods 4 except the uppermost drill rod 4 stably connected to each other, and the lowermost drill rod 4 stably connected to the soil sampler 5.

[0068] In the seventh step, release the existing drill rod clamp, then move the sliding platform 2 downward again so that the drilling rig 3 is connected to the uppermost drill rod 4, and then push the soil extractor 5 deeper into the soil again. Then repeat the above process of increasing the number of drill rods 4 until the soil extractor 5 moves to the specified depth of the soil, and then move the sliding platform 2 upward to lift the soil extractor 5 through the drill rod 4.

[0069] In the eighth step, when the uppermost drill rod 4 is completely located above the soil, the second drill rod 4 from the top is clamped and fixed by the existing drill rod clamp, and then the telescopic section of the electric push rod 69 is extended to make the moving block 64 on the uppermost drill rod 4 shrink to the inside of the hexagonal column 62 at the corresponding position, and then the sliding table 2 is moved up again, so that the drilling rig 3 drives the uppermost drill rod 4 to separate from the second drill rod 4 from the top.

[0070] In the ninth step, the operator fixes the drill rod 4 connected to the drilling rig 3 through the lifting equipment, and extends the telescopic section of the electric push rod 69 again to separate the drilling rig 3 from the drill rod 4 connected thereto, and then repeats the above steps to pull out the soil sampler 5 to complete the soil sampling.

[0071] It should be noted that the soil samples taken need to be analyzed and tested, and the mechanical properties of the soil need to be tested using mechanical sensors. For example, if a compression test is performed on the soil, a compression instrument is needed. The pressure sensor on the compression instrument can monitor the pressure acting on the soil in real time. At the same time, the displacement sensor on the compression instrument can measure the compression deformation of the soil under pressure to evaluate the compressibility and settlement of the soil.

[0072] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention, which are still covered by the scope of protection of the present invention.

Claims

1. A sampling device for geological exploration, comprising a bracket, a sliding platform is provided on the front side of the bracket for sliding up and down, and a drilling rig is fixedly installed on the front side of the sliding platform, characterized in that: The lower part of the drilling rig is connected to a soil sampler through a drill rod, and the sampling device also includes a connecting mechanism for quickly connecting the drill rod, the soil sampler and the drilling rig; The connecting mechanism includes a columnar member fixedly mounted on the upper end of the soil extractor and the upper end of the drill rod, a hexagonal column fixedly mounted on the lower end of the drill rig and the lower end of the drill rod, a hexagonal hole for inserting the hexagonal column is opened through the upper and lower axis positions of the columnar member, and movable blocks are slidably arranged on the three outer surfaces of the hexagonal column, and the movable blocks slide in a direction perpendicular to the corresponding sides of the hexagonal column. The movable blocks on the same hexagonal column are arranged at equal intervals, and rectangular grooves for inserting the movable blocks are opened on the six inner surfaces of the hexagonal hole; The connecting mechanism also includes a stabilizing assembly for assisting an operator in connecting multiple drill rods, an anti-drop assembly for removing the drill rods one by one from top to bottom, and a locking assembly for controlling the movement of the moving block; The anti-drop assembly includes a moving rod that is slidably arranged inside the drill rod up and down, the length of the moving rod is equal to that of the drill rod, and a limiting portion for locking the position of the moving rod is provided on the upper part of the moving rod and the upper part of the drill rod. The limiting portion includes two symmetrically arranged limiting blocks that are slidably arranged inside the drill rod left and right, a tension spring is provided between the limiting block and the drill rod, and two symmetrically arranged follower blocks are fixedly installed on the upper outer side of the moving rod; The locking assembly includes a triangular rod that is slidably arranged inside the hexagonal column, and three outer surfaces of the triangular rod are fixedly mounted with right-angled trapezoidal blocks for pushing and pulling the moving block; An electric push rod is fixedly installed inside the shaft of the drilling rig, and a spring telescopic rod is fixedly installed at the lower part of the telescopic section of the electric push rod. The lower end of the telescopic section of the spring telescopic rod is inserted into the lower part of the hexagonal column connected to the drilling rig, and a through hole for the telescopic section of the spring telescopic rod to be inserted is opened vertically through the interior of the triangular rod inside the hexagonal column connected to the drilling rig; A push spring is provided between the lower side of the right-angled trapezoidal block and the hexagonal column, and a coil spring is provided between the moving rod and the drill rod to push the upper end of the moving rod to be flush with the upper end of the drill rod; The limiting part also includes two symmetrically arranged square rods that slide up and down inside the drill rod. The lower part of the square rod is an inclined surface that gradually tilts outward from top to bottom. The lower part of the hexagonal column connected to the drilling rig is provided with a clearance groove for the square rod to move upward.

2. A geological exploration sampling device according to claim 1, characterized in that: The inclined surface of the right-angled trapezoidal block gradually tilts outward from top to bottom, and the inner side of the moving block is an inclined surface gradually tilted inward from bottom to top. The inclined surface of the right-angled trapezoidal block is slidably connected with the inclined surface of the moving block at the corresponding position.

3. A geological exploration sampling device according to claim 1, characterized in that: The lower side of the hexagonal column and the upper side of the hexagonal hole are both provided with chamfers, and the lower outer side of the moving block is also provided with a chamfer.

4. A geological exploration sampling device according to claim 1, characterized in that: The stabilizing assembly includes a locking rod that slides radially along the columnar member and is arranged inside each rectangular groove. A compression spring is arranged between the locking rod and the columnar member. The inward end of the locking rod is a dome-shaped structure. Hemispherical grooves for inserting the locking rod are provided on the three surfaces of the outside of the hexagonal column without a moving block.

5. A geological exploration sampling device according to claim 4, characterized in that: An insertion hole for inserting the locking rod is provided on the outer surface of the moving block. When the dome structure of the locking rod is inserted into the hemispherical groove, the compression spring is in a naturally extended state.

6. A geological exploration sampling device according to claim 1, characterized in that: A convex plate is arranged on the side wall of the moving rod, a groove is opened inside the drill rod, and a coil spring is fixedly installed between the convex plate and the groove.

Images