Geological soil sampling and detecting equipment for mineral exploration

Abstract

The invention relates to the technical field of soil sampling detection, in particular to geological soil sampling detection equipment for mineral exploration, which comprises a conveying mechanism, an isolation cylinder, a compaction mechanism and a sampling mechanism, the conveying mechanism is connected with the drill bit; the isolation cylinder is arranged on the drill bit outer ring; the compaction mechanism is arranged on the inner wall of the isolation cylinder; the sampling mechanism is rotationally mounted on the outer wall of the isolation cylinder; soil drilled by a drill bit is conveyed into an isolation cylinder, and in the conveying process, the soil is pressed into a waste cavity to apply air pressure to the upper portion of an inner ring of the isolation cylinder, so that the soil drilled by the drill bit moves to the upper portion in the isolation cylinder to prevent the drilled soil from reaching the outer portion of the isolation cylinder, and the isolation cylinder compacts the hole wall; after compaction, the sampling mechanism is used for sampling the soil on the hole wall, so that the soil is prevented from collapsing and mixing in the sampling process; the problem that soil with different depths is mixed due to the fact that a drill bit needs to be used for drilling hard soil during mineral exploration is solved.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling and detection, and in particular to geological soil sampling and detection equipment used for mineral exploration. Background Art

[0002] Soil sampling and testing equipment is an important equipment used in mineral exploration, agriculture, engineering construction and other fields. At present, soil sampling is mainly divided into manual sampling and mechanical sampling. When sampling shallow or soft soil, spiral drills, hollow tube drills and shovels are usually used. For deep soil or mineral exploration, hydraulic or pneumatic samplers are usually used for sampling.

[0003] When used for mineral exploration, it is usually necessary to sample deep soil and analyze the mineral distribution of the soil profile. For hard soil, an electric drill is usually used for sampling. However, during the drilling process of the drill, the collected soil will be mixed, so that the soil at different depths will be mixed, and it is impossible to accurately detect and analyze the mineral distribution in the soil at different depths. The prior art has proposed a good solution to this problem, such as a sampling device for geological mineral exploration with patent publication number CN115791269B; through the design of an arc sampling plate and a guide groove, the drill is first drilled to the required depth, and then the sampling is performed on the wall of the drilled hole. During sampling, the arc sampling plate extends out to scrape the soil on the hole wall, and the soil is pushed into the sampling bin through the scraping mechanism. The arc sampling bin cooperates with the scraping mechanism to reduce the damage to the soil structure and realize the layered collection of soil at different depths. Finally, the sampling bin filled with samples is automatically moved out of the rotating cylinder by the material taking mechanism, and the detection is immediate to improve efficiency.

[0004] Although the prior art solves the problem that soils at different depths will be mixed during the drilling process of the drill bit, the following problems still exist: when sampling the hole wall formed during the drilling process of the drill bit, part of the upper soil will be brought to the lower layer during the drilling process of the drill bit, and the lower soil will be pushed upward. When the hole wall is formed, the soil brought down from the upper layer by the drill bit will be distributed on the hole wall at different heights due to the vibration and extrusion generated during the drilling process, and the soil pushed from the lower layer to the upper layer will also be pressed onto the hole wall at different heights, which will lead to deviations in the sampling results when sampling the hole wall.

[0005] In view of the above situation, in order to overcome the above technical problems, the present invention designs a geological soil sampling and testing equipment for mineral exploration. Summary of the invention

[0006] The present invention provides a geological soil sampling and testing equipment for mineral exploration, which solves the problem that when exploring for minerals, it is necessary to use a drill bit to drill holes in harder soil, which causes mixing of soils at different depths. By arranging an isolation tube and a conveying mechanism, the soil drilled by the drill bit is conveyed to the inside of the isolation tube, and the soil is pressed into a waste cavity during the conveying process to apply air pressure to the top of the inner circle of the isolation tube, so that the soil drilled by the drill bit moves upward to the inside of the isolation tube to avoid the drilled soil reaching the outside of the isolation tube, and the isolation tube will compact the hole wall under the compaction effect of the drilling vibration force and the eccentric pressure of the counterweight ball. After compaction, the sampling mechanism samples the soil on the hole wall to avoid loosening and mixing during the soil sampling process, thereby improving the accuracy of the sampling result detection.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A geological soil sampling and testing equipment for mineral exploration, comprising a support frame and a drill bit, and also comprising a conveying mechanism, an isolation tube, a compacting mechanism and a sampling mechanism; the conveying mechanism is connected to the drill bit; the isolation tube is arranged on the outer ring of the drill bit, and when the conveying mechanism rotates, it drives the drill bit to rotate and transports the soil from the lower part of the inner ring of the isolation tube to the upper position; the compacting mechanism is arranged on the inner wall of the isolation tube, and when the soil moves upward under the action of the conveying mechanism, the gas in the isolation tube is squeezed upward to form a vortex and cooperate with the drilling to generate vibration force so that the isolation tube squeezes the soil at its outer wall, and the gas forming the vortex in the compacting mechanism is discharged from the lower part of the isolation tube in an oblique upward direction to push the soil above the center of the isolation tube; the sampling mechanism is rotatably installed on the outer wall of the isolation tube, and when the sampling mechanism rotates, the soil at the outer wall of the isolation tube is dug into the wall of the isolation tube.

[0009] Preferably, the surface of the drill bit is provided with a material guide thread; the conveying mechanism includes a driving motor, a material guide screw, a connecting bearing and a waste material chamber; the driving motor is connected to the support frame; the material guide screw is connected to the driving motor; the connecting bearing is connected between the material guide screw and the insulating cylinder; the waste material chamber is opened in the insulating cylinder.

[0010] In the above scheme, the drilled soil is lifted by the surface threads of the drill bit and the guide screw when they rotate into the soil, and the drilled soil is transported to the waste chamber, so as to prevent the waste from being mixed and compacted onto the hole wall where sampling is required during the discharge process. The guide screw and the insulating barrel are connected by connecting bearings, so that the guide screw and the insulating barrel can perform synchronous axial movement, and the guide screw can drive the drill bit to perform normal rotational movement while performing axial movement.

[0011] Preferably, the material guide screw includes a driving rod and a sliding rod; the driving rod is connected to the driving motor, and a driving sliding tooth is arranged on the outer wall of the driving rod; the sliding rod is sleeved on the outer side of the driving rod, and a sliding tooth groove meshing with the driving sliding tooth is opened on the inner wall of the sliding rod, a conveying thread is arranged on the outer wall of the sliding rod, and the sliding rod is rotatably installed in the insulating cylinder through a connecting bearing; a downward pressure spring is connected between the insulating cylinder and the support frame.

[0012] In the above scheme, the rotational force of the driving rod can be transmitted to the sliding rod through the cooperation between the driving sliding teeth and the sliding tooth grooves, so that the sliding rod can smoothly drive the drill bit to rotate, and at the same time, the driving sliding teeth and the sliding tooth grooves can slide axially relative to each other. Under the downward pressure of the downward pressure spring, the insulating tube will move downward, and at this time it will drive the sliding rod to move downward together. During the movement, the meshing action of the driving sliding teeth and the sliding tooth grooves can ensure that the sliding rod continues to drive the drill bit to rotate and drill.

[0013] Preferably, a downward pressure shovel surface is provided below the insulating tube, and the plane where the bottom of the insulating tube is located is lower than the plane where the bottom of the drill bit is located.

[0014] In the above scheme, the formed hole wall and the soil discharged outward during the drilling process can be isolated by the isolation tube, so as to prevent the drilled and discharged soil from adhering to the hole wall where sampling is required, and the isolation tube will squeeze the hole wall formed at its outer wall position at a high frequency as the drill bit generates vibration during the drilling process, making the hole wall more solid, thereby avoiding the problem of hole collapse, and facilitating subsequent sampling after the soil is compacted, so as to prevent the soil from being too loose during the sampling process, resulting in soil loosening and mixing of soils at different heights, and the downward pressure shovel surface under the isolation tube can be more easily embedded in the soil, so that it can be easily pressed down during the drilling process, and the lower end of the isolation tube protrudes beyond the drill bit, so as to ensure that the place where the hole needs to be formed at the position drilled by the drill bit is isolated first during the drilling process, thereby ensuring that the drill bit will not mix the soil brought down from above into the side wall position during the drilling process.

[0015] Preferably, the compacting mechanism includes a swirl slot, a deflection slot, an air curtain slot and a counterweight ball; the swirl slot is opened at the top of the waste chamber; the deflection slot is opened at the outer circle of the swirl slot; the air curtain slot is opened at the lower part of the deflection slot, and the bottom cross-section of the air curtain slot is an upward curved hook structure; the counterweight ball is rotatably installed in the deflection slot.

[0016] In the above scheme, when the soil is transported to the waste chamber by the conveying mechanism, the soil will gradually accumulate on the conveying thread of the outer wall of the sliding rod to form a sealing effect. At this time, the air in the waste chamber will be squeezed, so that the air will form a vortex from the vortex groove mouth and be discharged to the deflection groove. The counterweight ball in the deflection groove will further enhance the compaction effect of the isolation tube on the hole wall under the action of the vibration force and the thrust of the vortex air. The gas that passes through the deflection groove and enters the air curtain groove will change the outflow direction under the hook-shaped structure at the bottom, thereby forming an oblique rising airflow, which pushes the soil drilled by the drill bit to move upward, and prevents the drilled soil from reaching the outside of the isolation tube.

[0017] Preferably, the sampling mechanism includes a sampling trough, a sampling arc shovel and an isolation sealing plate; the sampling trough is opened on the side wall of the isolation tube; the sampling arc shovel is rotatably installed in the sampling trough; the isolation sealing plate and the sampling arc shovel are rotatably connected, and the curvature radius of the outer wall of the isolation sealing plate is equal to the radius of the isolation tube.

[0018] In the above scheme, after drilling to a depth where sampling can be carried out, the sampling arc shovel is rotated, and the sampling arc shovel is rotated out from the side wall of the isolation tube to sample the soil on the hole wall. After rotating 180 degrees, the unmixed soil on the outer wall of the isolation tube will be dug between the sampling arc shovel and the isolation sealing plate.

[0019] Preferably, the isolation sealing plate includes a plate body, a rotating shaft and a torsion spring; the plate body is rotatably inserted at the opening position of the sampling arc shovel; the rotating shaft is connected between the plate body and the sampling rotating groove, and an adsorption iron block is arranged on the upper part of the rotating shaft; the torsion spring is connected between the rotating shaft and the sampling rotating groove; and an adsorption magnetic block is arranged on the upper end of the sampling arc shovel.

[0020] In the above scheme, when the sampling arc shovel is rotated out of the sampling trough, the isolation sealing plate will not rotate due to the limiting effect of the torsion spring, and the sampling arc shovel will shovel the soil at the hole wall position. When the sampling arc shovel and the isolation sealing plate are rotated to form a closed state again, the sampling process will be completed. During shoveling, since the soil has been compacted in the previous drilling process, it can be ensured that the hole wall will not collapse due to shoveling under the support of the outer wall of the isolation tube, and since the sampling arc shovel is rotated on a fixed horizontal plane, the shoveling process will not cause mixing of soils at different depths. After the sampling is completed, the adsorption iron block and the adsorption magnetic block will produce an adsorption effect, so that the sampling arc shovel and the isolation sealing plate maintain the same rotation action. At this time, when the sampling arc shovel is rotated back into the sampling trough, the isolation sealing plate will rotate together. At this time, the isolation sealing plate and the sampling arc shovel will keep the sampled soil compacted and place the soil on the inner wall of the isolation tube, and will not be affected in the subsequent drilling process, thereby ensuring that the soil at different depths of the sampled soil will not be mixed.

[0021] Preferably, the adsorption iron block and the adsorption magnetic block are arranged at an interval of 180 degrees, and the adsorption force between the adsorption iron block and the adsorption magnetic block is greater than the torsion force of the torsion spring.

[0022] In the above scheme, the adsorption iron block and the adsorption magnetic block are set at an interval of 180 degrees, which can ensure that adsorption will occur between the adsorption iron block and the adsorption magnetic block only after the sampling arc shovel rotates to form a closed space between the isolation sealing plate during the sampling process, thereby avoiding the sampling space not being in a fully closed and compressed state, causing the sampled soil to become loose or exposed during the subsequent drilling process, thereby causing the sampled soil at different depths to be mixed.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Compared with the existing soil sampling equipment for mineral exploration, the present invention provides an isolation cylinder on the outside of the drill bit and a conveying mechanism. During the drilling process, the soil will be conveyed to the waste cavity in the isolation cylinder, thereby avoiding the problem of soil drilled during the drilling process reaching the outer wall of the isolation cylinder, resulting in the mixing of soil at different depths in the sampled soil. In addition, during the drilling process, the isolation cylinder will be compacted by the drilling vibration to form a hole wall, so that there will be no loosening and collapse during the subsequent soil sampling process, thereby ensuring that the sampled soil at different depths will not be mixed, making the subsequent detection results more accurate and reliable.

[0025] 2. The present invention sets a compaction mechanism, and when the conveying mechanism conveys soil into the waste chamber, the soil will gradually accumulate and form a sealing effect, so that the air in the waste chamber is squeezed, and the airflow will form a vortex when passing through the vortex groove. At this time, the counterweight ball will rotate in the isolation tube, and the vibration force during drilling will further enhance the compaction effect of the isolation tube on the hole wall. After the airflow vortex is ejected downward through the hook-shaped structure of the air curtain groove, the soil drilled by the drill bit will be blown to the waste chamber position, thereby preventing the drilled soil from reaching the outside of the isolation tube, thereby ensuring that the soil sampled at different depths at the hole wall position will not be mixed.

[0026] 3. The present invention arranges a sampling mechanism to perform sampling on the hole wall compacted by the isolation tube. Since the soil at different depths at the hole wall is not mixed, the detection result after sampling will be more accurate, and the sampling arc shovel rotates on a fixed horizontal plane, so the shoveling process will not cause mixing of soils at different depths. After the sampling is completed, the isolation sealing plate and the sampling arc shovel will keep the sampled soil compacted and place the soil in the inner wall of the isolation tube, which will not be affected in the subsequent drilling process, thereby ensuring that the soil at different depths of the sampled soil will not be mixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is the overall structure diagram of the present invention;

[0029] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0030] Figure 3 It is a cross-sectional view of the insulating tube of the present invention;

[0031] Figure 4 for Figure 3 A magnified view of the structure at center;

[0032] Figure 5 for Figure 3 A magnified view of the structure at B in the middle;

[0033] Figure 6 It is an overall cross-sectional view of the present invention;

[0034] Figure 7 for Figure 6 A magnified view of the structure at C in the middle;

[0035] Figure 8 It is a schematic diagram of the structure of the sampling mechanism of the present invention;

[0036] Fig. 9 It is a cross-sectional view of the sampling mechanism of the present invention;

[0037] Fig.10 It is a schematic diagram of the sampling arc shovel of the present invention being rotated out;

[0038] In the figure: 1. support frame; 2. drill bit; 21. material guide thread; 3. conveying mechanism; 31. driving motor; 32. material guide screw; 321. driving rod; 3211. driving sliding tooth; 322. sliding rod; 3221. sliding tooth groove; 3222. conveying thread; 33. connecting bearing; 34. waste material chamber; 4. isolation cylinder; 41. downward pressure spring; 42. downward pressure shovel surface; 5. compacting mechanism; 51. swirl notch; 52. deflection groove; 53. air curtain groove; 54. counterweight ball; 6. sampling mechanism; 61. sampling rotating groove; 62. sampling arc shovel; 621. adsorption magnetic block; 63. isolation sealing plate; 631. plate body; 632. rotating shaft; 6321. adsorption iron block; 633. torsion spring. DETAILED DESCRIPTION

[0039] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0040] See also Figures 1 to 8 The present invention provides a geological soil sampling and detection equipment for mineral exploration, and the technical scheme is as follows:

[0041] As a specific embodiment of the present invention, refer to Figure 1 , Figure 2 and Figure 3 , a geological soil sampling and testing equipment for mineral exploration, including a support frame 1 and a drill bit 2, and also including a conveying mechanism 3, an isolation tube 4, a compacting mechanism 5 and a sampling mechanism 6; the conveying mechanism 3 is connected to the drill bit 2; the isolation tube 4 is arranged on the outer ring of the drill bit 2, and when the conveying mechanism 3 rotates, it drives the drill bit 2 to rotate and transports the soil from the lower part of the inner ring of the isolation tube 4 to the upper position; the compacting mechanism 5 is arranged on the inner wall of the isolation tube 4, and the soil squeezes the gas in the isolation tube 4 upward during the upward movement under the action of the conveying mechanism 3, and then forms a vortex and cooperates with the drilling soil to generate vibration force so that the isolation tube 4 squeezes the soil at its outer wall, and the gas forming the vortex in the compacting mechanism 5 is discharged from the lower part of the isolation tube 4 in an oblique upward direction to push the soil above the center of the isolation tube 4; the sampling mechanism 6 is rotatably installed on the outer wall of the isolation tube 4, and when the sampling mechanism 6 rotates, the soil at the outer wall position of the isolation tube 4 is dug into the wall of the isolation tube 4.

[0042] As a specific embodiment of the present invention, refer to Figure 1 , Figure 2 and Figure 3 The surface of the drill bit 2 is provided with a material guide thread 21; the conveying mechanism 3 includes a driving motor 31, a material guide screw 32, a connecting bearing 33 and a waste chamber 34; the driving motor 31 is connected to the support frame 1; the material guide screw 32 is connected to the driving motor 31; the connecting bearing 33 is connected between the material guide screw 32 and the insulating tube 4; the waste chamber 34 is opened in the insulating tube 4. The drill bit 2 and the material guide screw 32 rotate into the soil to lift the drilled soil through the surface threads, and the drilled soil is transported to the waste chamber 34, so as to avoid the waste being mixed and compacted onto the hole wall where sampling is required during the discharge process. The material guide screw 32 and the insulating tube 4 are connected by the connecting bearing 33, so that the material guide screw 32 and the insulating tube 4 can perform synchronous axial movement, and the material guide screw 32 can drive the drill bit 2 to perform normal rotational movement while performing axial movement.

[0043] As a specific embodiment of the present invention, refer to Figure 2 , Figure 3 and Figure 4The guide screw 32 includes a driving rod 321 and a sliding rod 322; the driving rod 321 is connected to the driving motor 31, and a driving sliding tooth 3211 is arranged on the outer wall of the driving rod 321; the sliding rod 322 is sleeved on the outer side of the driving rod 321, and a sliding tooth groove 3221 engaged with the driving sliding tooth 3211 is opened on the inner wall of the sliding rod 322, and a conveying thread 3222 is arranged on the outer wall of the sliding rod 322, and the conveying thread 3222 can change from large to small from bottom to top, so as to ensure that the soil can be gradually accumulated during the conveying process, so that the soil can be compacted, so that the waste cavity 3 4, and the sealing performance can be further improved when the soil is compacted, thereby ensuring that the compacting mechanism 5 can work smoothly, and the sliding rod 322 is rotatably installed in the isolation tube 4 through the connecting bearing 33; a downward pressure spring 41 is connected between the isolation tube 4 and the support frame 1. During the drilling process, the support frame 1 is pressed against the ground, and the soil is transported to the waste chamber 34 through the drilling effect of the drill bit 2. Then, the isolation tube 4 can be automatically pressed down under the downward pressure of the downward pressure spring 41, and the sliding rod 322 can be driven to move downward during the downward pressure. By driving the cooperation between the sliding teeth 3211 and the sliding tooth grooves 3221, the rotational force of the driving rod 321 can be transmitted to the sliding rod 322, so that the sliding rod 322 can smoothly drive the drill bit 2 to rotate. At the same time, the driving sliding teeth 3211 and the sliding tooth grooves 3221 can slide axially relative to each other. Under the downward pressure of the downward pressure spring 41, the insulating tube 4 will move downward, and at this time, the sliding rod 322 will be driven to move downward together. During the movement, the meshing action of the driving sliding teeth 3211 and the sliding tooth grooves 3221 can ensure that the sliding rod 322 continues to drive the drill bit 2 to rotate and drill.

[0044] As a specific embodiment of the present invention, refer to Figure 2 and Figure 3 , a downward pressure shovel surface 42 is provided below the isolation tube 4, and the plane where the bottom of the isolation tube 4 is located is lower than the plane where the bottom of the drill bit 2 is located. The isolation tube 4 can isolate the formed hole wall and the soil discharged outward during the drilling process, thereby preventing the soil discharged from the drill from adhering to the hole wall where sampling is required, and the isolation tube 4 will squeeze the hole wall formed at its outer wall position at a high frequency with the vibration generated by the drilling of the drill bit 2 during the drilling process, making the hole wall more solid, thereby avoiding the problem of hole collapse, and facilitating subsequent sampling after the soil is compacted, avoiding the soil being too loose during the sampling process, resulting in the soil collapsing during the sampling process and mixing the soil at different heights, the downward pressure shovel surface 42 below the isolation tube 4 can be more easily embedded in the soil, so that it can be easily pressed down during the drilling process, and the lower end of the isolation tube 4 exceeds the drill bit 2, which can ensure that the place where the drill bit 2 needs to form a hole is isolated first during the drilling process, thereby ensuring that the drill bit 2 will not mix the soil brought down from above to the side wall position during the drilling process.

[0045] As a specific embodiment of the present invention, refer to Figure 5 , Figure 6 and Figure 7 The compacting mechanism 5 includes a swirl slot 51, a deflection slot 52, an air curtain slot 53 and a counterweight ball 54; the swirl slot 51 is opened at the top of the waste chamber 34; the deflection slot 52 is opened at the outer circle of the swirl slot 51; the air curtain slot 53 is opened at the lower part of the deflection slot 52, and the bottom cross-section of the air curtain slot 53 is an upward curved hook structure; the counterweight ball 54 is rotatably installed in the deflection slot 52. When the soil is transported to the waste chamber 34 by the conveying mechanism 3, the soil will gradually accumulate on the conveying thread 3222 of the outer wall of the sliding rod to form a sealing effect. At this time, the air in the waste chamber 34 will be squeezed, so that the air will form a swirl from the swirl slot 51 and be discharged to the deflection slot 52. The counterweight ball 54 in the deflection slot 52 will further improve the compaction effect of the isolation tube 4 on the hole wall under the action of vibration force and swirl air thrust; and the gas entering the air curtain slot 53 through the deflection slot 52 will change the outflow direction under the hook-shaped structure at the bottom, thereby forming an oblique rising airflow, pushing the soil drilled by the drill bit 2 to move upward, preventing the drilled soil from reaching the outside of the isolation tube 4, and a rubber material seal that can only allow one-way opening and closing can be set at the slot position of the air curtain slot 53, so that when the gas is not discharged to the outside, the soil will not block the slot of the air curtain slot 53, and at the same time, the pressure of the discharged gas can be increased, so that the thrust for drilling the soil can be further increased.

[0046] As a specific embodiment of the present invention, refer to Figure 8 , Fig. 9 and Fig.10 The sampling mechanism 6 includes a sampling rotating groove 61, a sampling arc shovel 62 and an isolation sealing plate 63; the sampling rotating groove 61 is opened on the side wall of the isolation tube 4; the sampling arc shovel 62 is rotatably installed in the sampling rotating groove 61; the isolation sealing plate 63 and the sampling arc shovel 62 are rotatably connected, and the curvature radius of the outer wall of the isolation sealing plate 63 is equal to the radius of the isolation tube 4. After drilling to a depth where sampling can be performed, the sampling arc shovel 62 is rotated, and the sampling arc shovel 62 is rotated out from the side wall of the isolation tube 4 to sample the soil on the hole wall. After rotating 180 degrees, the soil that has not been mixed on the outer wall of the isolation tube 4 will be dug between the sampling arc shovel 62 and the isolation sealing plate 63.

[0047] As a specific embodiment of the present invention, refer to Figure 8 , Fig. 9 and Fig.10The isolation sealing plate 63 includes a plate body 631, a rotating shaft 632 and a torsion spring 633; ​​the plate body 631 is rotatably inserted at the opening position of the sampling arc shovel 62; the rotating shaft 632 is connected between the plate body 631 and the sampling rotating groove 61, and an adsorption iron block 6321 is arranged on the upper part of the rotating shaft 632; the torsion spring 633 is connected between the rotating shaft 632 and the sampling rotating groove 61; the upper end of the sampling arc shovel 62 is provided with an adsorption magnetic block 621. When the sampling arc shovel 62 rotates out of the sampling rotating groove 61, the limiting effect of the torsion spring 633 can prevent the isolation sealing plate 63 from rotating, and the sampling arc shovel 62 will shovel the soil at the hole wall position. When the sampling arc shovel 62 and the isolation sealing plate 63 are rotated to form a closed state again, the sampling process will be completed. During shoveling, since the soil has been compacted in the previous drilling process, it can be ensured that the hole wall will not collapse due to shoveling under the support of the outer wall of the isolation tube 4. Moreover, since the sampling arc shovel 62 rotates on a fixed horizontal plane, the shoveling process will not cause different depths. The soil of different degrees will be mixed; after the sampling is completed, the adsorption iron block 6321 and the adsorption magnetic block 621 will produce an adsorption effect, so that the sampling arc shovel 62 and the isolation sealing plate 63 maintain the same rotation action. At this time, when the sampling arc shovel 62 is turned back into the sampling rotating groove 61, the isolation sealing plate 63 will rotate together. At this time, the isolation sealing plate 63 and the sampling arc shovel 62 will keep the sampled soil pressed and place the soil on the inner wall of the isolation tube 4, and will not affect it during the subsequent drilling process, thereby ensuring that the soil at different depths of the sampled soil will not be mixed.

[0048] As a specific embodiment of the present invention, refer to Figure 8 , Fig. 9 and Fig.10 The adsorption iron block 6321 and the adsorption magnetic block 621 are arranged at an interval of 180 degrees, and the adsorption force between the adsorption iron block 6321 and the adsorption magnetic block 621 is greater than the torsion of the torsion spring 633. The adsorption iron block 6321 and the adsorption magnetic block 621 are arranged at an interval of 180 degrees, which can ensure that the adsorption iron block 6321 and the adsorption magnetic block 621 will be adsorbed only after the sampling arc shovel 62 rotates to form a closed space between the isolation sealing plate 63 during the sampling process, so as to avoid the sampling space not being in a fully closed and compressed state, resulting in the loosening or tilting of the sampled soil during the subsequent drilling process, thereby causing the sampled soil at different depths to be mixed.

[0049] Working process: fix the support frame 1 on the ground, start the driving motor 31 to drive the drill bit 2 and the guide screw 32 to rotate, after the drill bit 2 drills the soil, the isolation tube 4 is subjected to the pressure of the downward pressure spring 41, driving the drill bit 2 to move downward together, and the soil in the isolation tube 4 is transported to the waste chamber 34 through the guide screw 32, and the soil entering the waste chamber 34 presses the gas in the waste chamber 34 into the air curtain groove 53, and blows the soil drilled by the drill bit 2 to the guide screw 32 through the air curtain groove 53, and the isolation tube 4 compacts the hole wall position under the vibration force, and when the drilling reaches the set height, the sampling mechanism 6 is rotated to store the soil sample into the wall of the isolation tube 4.

[0050] Specifically, the support frame 1 is pressed and fixed on the ground. At this time, the downward pressure spring 41 will press down the isolation tube 4, and the downward pressure shovel surface 42 at the lower end of the isolation tube 4 is manually inserted into the soil. The isolation tube 4 will drive the drill bit 2 to be pressed down, and the drill bit 2 contacts the ground. The drive motor 31 is started to drive the drive rod 321 to rotate. Through the cooperation between the driving sliding teeth 3211 and the sliding tooth grooves 3221 of the drive rod 321, the rotational force of the drive rod 321 can be transmitted to the sliding rod 322, so that the sliding rod 322 can smoothly drive the drill bit 2 to rotate, and at the same time drive the sliding teeth 3211 and the sliding tooth grooves 3221 The drill bit 2 and the isolation tube 4 can slide relative to each other axially. Under the downward pressure of the downward pressure spring 41, after the drill bit 2 drills through the soil, the drill bit 2 and the isolation tube 4 will move downward together (if the soil is hard, you can manually press down and cooperate with the downward pressure spring 41 to ensure the drilling effect). During the movement, the meshing action of the driving sliding teeth 3211 and the sliding tooth grooves 3221 can ensure that the sliding rod 322 continues to drive the drill bit 2 to rotate and drill. The drilled soil will be transported to the waste cavity 34 under the action of the guide thread 21 on the surface of the drill bit 2 and the conveying thread 3222 on the outer side of the sliding rod 322, and the soil will be transported to the waste cavity 34 under the action of the guide thread 21 on the surface of the drill bit 2 and the conveying thread 3222 on the outer side of the sliding rod 322. During the drilling process, the soil will be gradually compacted (i.e., the soil distribution on the conveying thread 3222 becomes gradually denser from bottom to top), thereby sealing the lower port of the waste chamber 34. At this time, the gas in the waste chamber 34 will be compressed, and the compressed gas will enter the deflection groove 52 through the swirl groove 51. Under the action of the swirl force of the compressed gas, the counterweight ball 54 will be pushed to rotate. During the drilling process, the isolation tube 4 will cooperate with the counterweight ball 54 to compact the hole wall formed at the outer wall position of the isolation tube 4 under the vibration force generated by drilling, so that the hole wall is not easy to loosen during the subsequent sampling process, ensuring that no loosening will occur during sampling. The soil at different depths is mixed, and the isolation tube 4 can be pressed down more smoothly in the subsequent process without bringing the soil from the upper layer to the lower layer; the gas entering the deflection groove 52 continues to swirl downward into the air curtain groove 53, and under the action of the hook-shaped structure at the bottom of the air curtain groove 53, the gas is blown from the lower side of the drill bit 2 to the position of the sliding rod 322, so that the soil drilled by the drill bit 2 is blown to the conveying mechanism 3, so as to prevent the soil drilled by the drill bit 2 from moving from the inside of the isolation tube 4 to the outside of the isolation tube 4, thereby preventing the soil sampled by the sampling mechanism 6 from being mixed soil at different depths;

[0051] When the isolation tube 4 and the drill bit 2 reach the specified depth, the sampling arc shovel 62 is rotated to take samples, and rotated 180 degrees to make the adsorption magnetic block 621 and the adsorption iron block 6321 on the isolation sealing plate 63 adsorb each other. At this time, the sampling arc shovel 62 is rotated 180 degrees, and the sampling arc shovel 62 will drive the isolation sealing plate 63 to rotate together, and the sampled soil is clamped between the sampling arc shovel 62 and the isolation sealing plate 63. The sampling arc shovel 62 rotates on a fixed horizontal plane, so the shoveling process will not cause mixing of soils at different depths, and in the subsequent process of lifting the drill, it will not affect the sampled soil. After completing the drilling work, you only need to rotate the isolation sealing plate 63 to completely remove the soil.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A geological soil sampling and testing device for mineral exploration, comprising a support frame (1) and a drill bit (2), characterized in that: The invention also comprises a conveying mechanism (3), an isolation tube (4), a compacting mechanism (5) and a sampling mechanism (6); the conveying mechanism (3) is connected to the drill bit (2); the isolation tube (4) is arranged on the outer ring of the drill bit (2); when the conveying mechanism (3) rotates, the drill bit (2) is driven to rotate to convey soil from the lower part of the inner ring of the isolation tube (4) to the upper part; the compacting mechanism (5) is arranged on the inner wall of the isolation tube (4); when the soil moves upward under the action of the conveying mechanism (3), the gas in the isolation tube (4) is squeezed upward to form a vortex and cooperates with the drilling to generate vibration force so that the isolation tube (4) squeezes the soil at its outer wall; the gas forming the vortex in the compacting mechanism (5) is discharged from the lower part of the isolation tube (4) toward the center of the isolation tube (4) to push the soil; the sampling mechanism (6) is rotatably mounted on the outer wall of the isolation tube (4); when the sampling mechanism (6) rotates, the soil at the outer wall of the isolation tube (4) is dug into the wall of the isolation tube (4).

2. The geological soil sampling and testing equipment for mineral exploration according to claim 1, characterized in that: The surface of the drill bit (2) is provided with a material guide thread (21); the conveying mechanism (3) comprises a driving motor (31), a material guide screw (32), a connecting bearing (33) and a waste material chamber (34); the driving motor (31) is connected to the support frame (1); the material guide screw (32) is connected to the driving motor (31); the connecting bearing (33) is connected between the material guide screw (32) and the insulating cylinder (4); and the waste material chamber (34) is opened in the insulating cylinder (4).

3. The geological soil sampling and testing equipment for mineral exploration according to claim 2 is characterized in that: The material guide screw (32) comprises a driving rod (321) and a sliding rod (322); the driving rod (321) is connected to the driving motor (31), and a driving sliding tooth (3211) is provided on the outer wall of the driving rod (321); the sliding rod (322) is sleeved on the outer side of the driving rod (321), and a sliding tooth groove (3221) meshing with the driving sliding tooth (3211) is provided on the inner wall of the sliding rod (322); a conveying thread (3222) is provided on the outer wall of the sliding rod (322), and the sliding rod (322) is rotatably mounted in the isolation cylinder (4) via a connecting bearing (33); a downward pressure spring (41) is connected between the isolation cylinder (4) and the support frame (1).

4. The geological soil sampling and testing equipment for mineral exploration according to claim 3 is characterized in that: A downward pressure shovel surface (42) is provided below the insulating cylinder (4), and the plane where the bottom of the insulating cylinder (4) is located is lower than the plane where the bottom of the drill bit (2) is located.

5. The geological soil sampling and testing equipment for mineral exploration according to claim 2, characterized in that: The compacting mechanism (5) comprises a swirl notch (51), a deflection groove (52), an air curtain groove (53) and a weight ball (54); the swirl notch (51) is provided at the top of the waste chamber (34); the deflection groove (52) is provided at the outer ring of the swirl notch (51); the air curtain groove (53) is provided at the lower part of the deflection groove (52), and the bottom cross-section of the air curtain groove (53) is an upward curved hook-shaped structure; and the weight ball (54) is rotatably installed in the deflection groove (52).

6. The geological soil sampling and testing equipment for mineral exploration according to claim 1, characterized in that: The sampling mechanism (6) comprises a sampling rotating groove (61), a sampling arc shovel (62) and an isolation sealing plate (63); the sampling rotating groove (61) is formed on the side wall of the isolation cylinder (4); the sampling arc shovel (62) is rotatably mounted in the sampling rotating groove (61); the isolation sealing plate (63) is rotatably connected to the sampling arc shovel (62), and the curvature radius of the outer wall of the isolation sealing plate (63) is equal to the radius of the isolation cylinder (4).

7. The geological soil sampling and testing equipment for mineral exploration according to claim 6 is characterized in that: The isolation sealing plate (63) comprises a plate body (631), a rotating shaft (632) and a torsion spring (633); the plate body (631) is rotatably inserted at the opening position of the sampling arc shovel (62); the rotating shaft (632) is connected between the plate body (631) and the sampling rotating groove (61), and an adsorption iron block (6321) is arranged on the upper part of the rotating shaft (632); the torsion spring (633) is connected between the rotating shaft (632) and the sampling rotating groove (61); and an adsorption magnetic block (621) is arranged on the upper end of the sampling arc shovel (62).

8. The geological soil sampling and testing equipment for mineral exploration according to claim 7, characterized in that: The adsorption iron block (6321) is arranged 180 degrees apart from the adsorption magnetic block (621) when no sampling is being performed, and the adsorption force between the adsorption iron block (6321) and the adsorption magnetic block (621) is greater than the torsion force of the torsion spring (633).

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