A stratum sampling device for geological exploration and a geological exploration method

Abstract

This disclosure provides a rock stratum sampling device and method for geological exploration, including a main support. A hydraulic telescopic rod is fixedly connected to the top of the main support. The telescopic end of the hydraulic telescopic rod passes through the top side wall of the main support and is fixedly connected to a drive frame. An installation plate is slidably connected between two opposite side walls inside the main support. A secondary support is fixedly connected between the bottom side wall of the drive frame and the top side wall of the installation plate. This invention relates to the field of rock stratum sampling technology in geological exploration. In use, this invention eliminates the need to replace the drill bit. When drilling, the rock column inside the exploration drill bit contacts the conical cover, which activates the crushing component to directly crush and collect the rock at the top of the rock column into a hollow turntable. This eliminates the need to remove the rock column for crushing and the step of replacing the drill bit, improving work efficiency and reducing operating costs.

Description

Technical Field

[0001] This disclosure belongs to the field of geological exploration rock stratum sampling technology, specifically relating to a rock stratum sampling device and geological exploration method for geological exploration. Background Technology

[0002] During geological exploration, it is necessary to sample designated rock strata. After drilling the ground, the rock at the designated location can be extracted directly using the exploration drill bit. However, for some rocks, it is necessary to crush the rock during sampling and testing to facilitate the testing of the rock strata at that location.

[0003] In existing technologies, when sampling rock strata that need to be crushed, the rock needs to be removed, crushed using a crushing mechanism, and then stored in a container for subsequent testing. However, the sampling process itself takes time, and the process of removing the rock and crushing it takes a lot of time, affecting the efficiency of the exploration work. Some rock blocks also need to be broken into smaller pieces by changing the drill bit to facilitate subsequent crushing, which affects the efficiency of the drill bit and increases the cost of rock sampling. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to provide a rock stratum sampling device and a geological exploration method, which can solve the problems that require a lot of time to crush the rocks after they are removed, which affects the efficiency of the exploration work, and that directly crushing the rocks at the sampling point requires changing different drill bits, which increases the sampling cost.

[0005] To address the aforementioned problems, the present invention provides a rock stratum sampling device for geological exploration, comprising: a main support, a hydraulic telescopic rod fixedly connected to the top of the main support, the telescopic end of the hydraulic telescopic rod passing through the top side wall of the main support and fixedly connected to a drive frame, an mounting plate slidably connected between two opposite side walls inside the main support, and a secondary support fixedly connected between the bottom side wall of the drive frame and the top side wall of the mounting plate.

[0006] An exploration drill bit is embedded and rotatably connected to the bottom center of the mounting plate. The exploration drill bit contains a crushing component for crushing rock blocks at a designated location.

[0007] A drive ring is rotatably connected to the top side of the mounting plate. The bottom side wall of the drive ring is fixedly connected to the top side wall of the exploration drill bit. A transmission component is provided inside the drive ring to drive the exploration drill bit and the breaker.

[0008] The drive ring is also equipped with a discharge component for discharging crushed rock blocks;

[0009] The drive frame contains a drive component for driving the transmission components.

[0010] Furthermore, the crushing component includes a hollow turntable, which is slidably connected to the inner wall of the exploration drill bit. A conical cover is fixedly connected to the bottom of the hollow turntable. A number of receiving grooves communicating with the inside of the hollow turntable are opened on the bottom side wall of the conical cover. A crushing blade is fixedly connected to the bottom side wall of the conical cover at the edge of the receiving groove.

[0011] Furthermore, the driving component includes a driving motor, which is fixedly connected to the bottom side of the driving frame, and the output shaft of the driving motor extends into the driving ring.

[0012] Furthermore, the transmission component includes an upper sealing plate, which is rotatably connected to the top of the drive ring and rotatably connected to the output shaft of the drive motor;

[0013] An internal toothed ring is fixedly connected to the top of the inner circumference of the drive ring, and a stepped column is rotatably connected to the bottom side wall of the upper sealing plate. An upper tooth groove that meshes with the internal toothed ring is opened on the upper part of the outer circumference of the stepped column.

[0014] Furthermore, the transmission component also includes a transmission gear, which is located in the middle of the top sidewall of the exploration drill bit. A transmission shaft is fixedly connected to the bottom of the transmission gear, and the bottom end of the transmission shaft extends into the exploration drill bit and is fixedly connected to the top sidewall of the hollow turntable. A lower tooth groove that cooperates with the transmission gear is opened on the bottom of the outer periphery of the stepped column, and a gap is left between the bottom of the stepped column and the top of the transmission gear.

[0015] Furthermore, the unloading component includes an inner rotating shaft, which is rotatably connected to the inner top wall of the hollow turntable. A lever is fixedly connected to the bottom outer periphery of the inner rotating shaft, and a gap is left between the bottom side wall of the lever and the inner bottom side wall of the conical cover.

[0016] Furthermore, the unloading component also includes an unloading gear, which is rotatably connected to the top of the transmission gear. A central tooth groove that meshes with the unloading gear is provided in the middle of the outer periphery of the stepped column. An unloading rod is fixedly connected to the bottom of the unloading gear, and the bottom end of the unloading rod passes through the transmission shaft and is fixedly connected to the inner rotating shaft.

[0017] Furthermore, both ends of the bottom side of the main support are V-shaped, and both ends of the bottom side of the main support are fixedly connected with tapered nails.

[0018] A method for sampling rock strata in geological exploration, used in the aforementioned rock strata sampling device for geological exploration;

[0019] The steps of this method for sampling rock strata in geological exploration are as follows:

[0020] S101: Drill a hole in the ground to the designated sampling point, fix the main support to the ground with a cone nail, and align the exploration drill bit with the sampling point;

[0021] S102: After drilling to the designated position, remove excess rock, soil and other debris from the exploration drill bit, and then continue drilling and take samples.

[0022] S103: The exploration drill bit drills a hole at the designated point, the exploration drill bit is pulled out, and then the rock column inside is taken out to complete the sampling of the rock block;

[0023] S104: When a sample needs to be crushed, the exploration drill bit does not need to be pulled out. Continue drilling downwards so that the top of the internal rock column comes into contact with the crushing piece, crushing the top of the rock column and collecting it.

[0024] S105: The exploration drill bit is then removed, and the soil and impurities inside the exploration drill bit are cleaned.

[0025] S106: Use the unloading device to discharge the crushed rock from the crusher, and use a container to collect it from the end of the exploration drill bit.

[0026] In summary, the present invention has at least one of the following beneficial technical effects:

[0027] This geological exploration rock stratum sampling device eliminates the need to replace the drill bit during use. When drilling, the rock column inside the exploration drill bit comes into contact with the conical cover, which activates the crushing component to crush the rock at the top of the rock column and collect it into the hollow turntable. This eliminates the need to remove the rock column and crush it, as well as the need to replace the drill bit. This improves work efficiency and reduces work costs.

[0028] This geological exploration rock sampling device can directly crush the rock when it is in a crushed state during drilling, eliminating the need to remove the rock and then crush it, which greatly improves the efficiency of rock crushing and sampling. Furthermore, it eliminates the need to replace the crushing drill bit, thereby reducing the cost of rock crushing.

[0029] This geological exploration rock sampling method can sample rocks according to different sampling needs. When the rocks need to be crushed, the rocks that have entered the exploration drill bit can be crushed directly and stored. The rock particles inside can then be directly removed and placed into a designated container, thus eliminating the need for subsequent crushing work and drill bit replacement, improving work efficiency, and reducing operating costs. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the internal structure of the exploration drill bit of the present invention;

[0032] Figure 3 For the present invention Figure 2 A schematic diagram of the internal front structure of an exploration drill bit.

[0033] Figure 4 For the present invention Figure 3 A schematic diagram of the internal structure of the drive ring;

[0034] Figure 5 This is a schematic diagram of the internal structure of the conical cover of the present invention;

[0035] Figure 6 This is a schematic diagram of the external structure of the conical cover of the present invention;

[0036] Figure 7 This is a schematic diagram of the unloading component structure of the present invention;

[0037] Figure 8 This is an enlarged schematic diagram of the internal structure of the conical cover of the present invention.

[0038] The reference numerals in the attached figures are as follows:

[0039] 1. Main support; 2. Hydraulic telescopic rod; 3. Drive frame; 4. Mounting plate; 5. Secondary support; 6. Exploration drill bit; 7. Crusher; 8. Drive ring; 9. Transmission component; 10. Unloading component; 11. Conical nail; 12. Drive component; 13. Hollow turntable; 14. Conical cover; 15. Collection slot; 16. Crusher blade; 17. Drive motor; 18. Upper sealing plate; 19. Internal gear ring; 20. Stepped column; 21. Upper tooth groove; 22. Transmission gear; 23. Transmission shaft; 24. Lower tooth groove; 25. Inner rotating shaft; 26. Lever; 27. Unloading gear; 28. Middle tooth groove; 29. ​​Unloading rod. Detailed Implementation

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0044] See also Figure 1-8 As shown, according to Embodiment 1 of the present invention, a rock stratum sampling device for geological exploration is provided, comprising: a main support 1, a hydraulic telescopic rod 2 fixedly connected to the top of the main support 1, the telescopic end of the hydraulic telescopic rod 2 passing through the top side wall of the main support 1 and fixedly connected to a drive frame 3, an mounting plate 4 slidably connected between two opposite side walls inside the main support 1, and a secondary support 5 fixedly connected between the bottom side wall of the drive frame 3 and the top side wall of the mounting plate 4.

[0045] An exploration drill bit 6 is embedded and rotatably connected to the bottom center of the mounting plate 4. The exploration drill bit 6 is equipped with a crushing component 7 for crushing rock blocks at a designated location.

[0046] The top side of the mounting plate 4 is rotatably connected to a drive ring 8. The bottom side wall of the drive ring 8 is fixedly connected to the top side wall of the exploration drill bit 6. A transmission component 9 is provided inside the drive ring 8 to drive the exploration drill bit 6 and the breaker 7.

[0047] The drive ring 8 is also equipped with a discharge component 10 for discharging crushed rock blocks;

[0048] A drive component 12 is provided inside the drive frame 3 for driving the transmission component 9.

[0049] In this embodiment, reference Figure 1 and Figure 2The main support 1 is placed at the sampling point where the hole has been pre-drilled. Then, the hydraulic telescopic rod 2 drives the drive frame 3 to descend, allowing the exploration drill bit 6 to move to the sampling point. Then, the drive component 12 drives the exploration drill bit 6 to rotate through the transmission component 9, allowing the rock at the sampling point to enter the exploration drill bit 6, thereby drilling the rock at that location. The exploration drill bit 6 is well known in the art, and its specific details will not be elaborated.

[0050] When the rock needs to be crushed for sampling and testing at the sampling point, the exploration drill bit 6 drills downward to allow the rock to enter the exploration drill bit 6 until the rock comes into contact with the crushing component 7. The crushing component 7 is then moved upward by the force of the contact, which causes the transmission component 9 to rotate the crushing component 7, crushing the rock at the point and collecting it. After a sufficient amount of crushed rock has been collected, the exploration drill bit 6 is removed, and the crushed rock inside the crushing component 7 is poured out using the unloading component 10. A collection container is prepared in advance at the bottom of the exploration drill bit 6 to collect the crushed rock, thus completing the sampling work of crushed rock.

[0051] This eliminates the need to replace the crushing drill bit, reduces the cost of using the sampling drill bit, and eliminates the need for subsequent crushing, thus improving work efficiency.

[0052] In a further preferred embodiment of the invention, such as Figure 1 and Figure 3 As shown, the driving component 12 includes a driving motor 17, which is fixedly connected to the bottom side of the driving frame 3. The output shaft of the driving motor 17 extends into the driving ring 8. The transmission component 9 includes an upper sealing plate 18, which is rotatably connected to the top of the driving ring 8 and rotatably connected to the output shaft of the driving motor 17.

[0053] An internal toothed ring 19 is fixedly connected to the top of the inner circumference of the drive ring 8, and a stepped column 20 is rotatably connected to the bottom side wall of the upper sealing plate 18. An upper toothed groove 21 that meshes with the internal toothed ring 19 is opened on the upper part of the outer circumference of the stepped column 20.

[0054] In this embodiment, reference 1 and Figure 3 The drive motor 17 is fixedly connected to the bottom side of the drive frame 3. When it is necessary to drive the exploration drill bit 6 to perform rotary drilling and sampling, the drive motor 17 is started. The drive motor 17 drives the stepped column 20 located at the bottom of the upper sealing plate 18 to rotate. The upper tooth groove 21 on the stepped column 20 will drive the inner tooth ring 19 at the top of the drive ring 8 to rotate, thereby driving the drive ring 8 to rotate. The rotation of the drive ring 8 will drive the rotation of the exploration drill bit 6. At the same time, the hydraulic telescopic rod 2 drives the drive frame 3 and the mounting plate 4 to descend, so that the exploration drill bit 6 can perform drilling and sampling work at the designated sampling point.

[0055] In a further preferred embodiment of the invention, such as Figures 3-6 and Figure 8 As shown, the transmission component 9 also includes a transmission gear 22, which is located in the middle of the top side wall of the exploration drill bit 6. A transmission shaft 23 is fixedly connected to the bottom of the transmission gear 22. The bottom end of the transmission shaft 23 extends into the exploration drill bit 6 and is fixedly connected to the top side wall of the hollow turntable 13. The bottom of the outer periphery of the stepped column 20 is provided with a lower tooth groove 24 that cooperates with the transmission gear 22. A gap is left between the bottom of the stepped column 20 and the top of the transmission gear 22. The crushing component 7 includes a hollow turntable 13, which is slidably connected to the inner side wall of the exploration drill bit 6. A conical cover 14 is fixedly connected to the bottom of the hollow turntable 13. A number of receiving grooves 15 communicating with the inside of the hollow turntable 13 are provided on the bottom side wall of the conical cover 14. A crushing blade 16 is fixedly connected to the bottom side wall of the conical cover 14 and located at the edge of the receiving groove 15.

[0056] In this embodiment, reference Figure 3 When rock sampling and crushing are required, the exploration drill bit 6 continues downward, allowing the rock to contact the conical cover 14. This causes the conical cover 14 to be pushed upward by the rock, simultaneously moving the hollow rotary table 13 upward. (See reference...) Figure 4 The drive shaft 23 is slidably connected to the top of the exploration head. Therefore, when the hollow turntable 13 moves upward, it will push the drive gear 22 upward through the drive shaft 23, so that the drive gear 22 meshes with the lower tooth groove 24 at the bottom of the stepped column 20. Then, when the lower tooth groove 24 meshes with the drive gear 22, the step column 20 will also drive the drive gear 22 to rotate when it rotates, which in turn drives the hollow turntable 13 and the conical cover 14 to rotate through the drive shaft 23.

[0057] refer to Figure 5 , Figure 6 and Figure 8 When the bottom of the conical cover 14 comes into contact with the rock in the rock layer, the crushing blade 16 also comes into contact with it. The rotation of the conical cover 14 will drive the crushing blade 16 to rotate, and the crushing blade 16 will crush the rock. A collection groove 15 is also opened at the bottom of the conical cover 14. The crushed rock is squeezed upward by the rock below and will be squeezed into the collection groove 15. As the amount of crushed rock gradually increases, the crushed rock particles are smaller than the width of the collection groove 15 and are gradually squeezed into the conical cover 14 and the hollow turntable 13. The bottom of the hollow turntable 13 is connected to the inside of the conical cover 14, so the crushed rock will enter the hollow turntable 13 and the conical cover 14 for collection.

[0058] This allows the rock to be directly crushed during drilling with the exploration drill bit 6 when it is in a pulverized state, eliminating the need to remove the rock and then crush it, thus greatly improving the efficiency of rock crushing and sampling. Furthermore, it eliminates the need to replace the crushing drill bit, thereby reducing the cost of rock crushing.

[0059] In a further preferred embodiment of the invention, such as Figure 4 and Figure 7 As shown, the unloading component 10 also includes an unloading gear 27, which is rotatably connected to the top of the transmission gear 22. A central tooth groove 28 that meshes with the unloading gear 27 is provided in the middle of the outer periphery of the stepped column 20. An unloading rod 29 is fixedly connected to the bottom of the unloading gear 27. The bottom end of the unloading rod 29 passes through the transmission shaft 23 and is fixedly connected to the inner rotating shaft 25. The unloading component 10 includes an inner rotating shaft 25, which is rotatably connected to the inner top wall of the hollow turntable 13. A lever 26 is fixedly connected to the outer periphery of the bottom of the inner rotating shaft 25. A gap is left between the bottom side wall of the lever 26 and the inner bottom side wall of the conical cover 14.

[0060] In this embodiment, reference Figure 4 and Figure 7 A screw is rotatably connected to the top of the upper sealing plate 18, and the bottom end of the screw is inserted into the drive ring 8 and rotatably connected to the unloading gear 27.

[0061] After the crushed rock samples are taken out, the exploration drill bit 6 is removed, the screw is turned to move the screw upward, and the unloading gear 27 is moved upward until the unloading gear 27 meshes with the middle tooth groove 28 on the stepped column 20. Then the drive motor 17 is started, the drive motor 17 drives the stepped column 20 to rotate, and then drives the unloading gear 27 to rotate, so that the unloading gear 27 drives the unloading rod 29 to rotate. The unloading rod 29 drives the inner rotating shaft 25 to rotate, and drives the lever 26 to rotate, so that the lever 26 pushes the crushed stone particles located in the conical cover 14, thereby discharging the crushed stone particles from the collection groove 15. The corresponding collection container is placed at the bottom of the exploration drill bit 6 for collection.

[0062] In a further preferred embodiment of the invention, such as Figure 1 As shown, the two ends of the bottom side of the main support 1 are both V-shaped, and the two ends of the bottom side of the main support 1 are fixedly connected with tapered nails 11.

[0063] In this embodiment, reference Figure 1 The two ends of the bottom side of the main support 1 are V-shaped, and a cone nail 11 is fixedly connected to the bottom end of the V-shaped main support 1. The cone nail 11 can be inserted into the ground of the exploration sampling point, thereby improving the stability of the main support 1 when it is fixed to the ground and preventing the main support 1 from tilting when the exploration drill bit 6 is drilling and sampling, which would affect the progress of subsequent work. Example

[0064] According to another aspect of the present invention, a method for sampling rock strata for geological exploration is provided;

[0065] The steps of this method for sampling rock strata in geological exploration are as follows:

[0066] S101: Dig a hole in the ground to the designated sampling point, fix the main support 1 to the ground using the cone nail 11, and align the exploration drill bit 6 with the sampling point;

[0067] S102: After drilling to the designated position, remove excess rock, soil and other debris from the exploration drill bit 6, and then continue drilling and take samples.

[0068] S103: Exploration drill bit 6 drills holes at designated points, then pulls out exploration drill bit 6 and removes the internal rock column to complete the sampling of rock blocks;

[0069] S104: When a sample needs to be crushed, the exploration drill bit 6 does not need to be pulled out. Continue drilling downwards so that the top of the internal rock column comes into contact with the crushing piece 7, crushing the top of the rock column and collecting it.

[0070] S105: Then the exploration drill bit 6 is removed and the soil and impurities inside the exploration drill bit 6 are cleaned.

[0071] S106: The crushed rock inside the crusher 7 is discharged using the unloading component 10 and collected from the end of the exploration drill bit 6 using a container.

[0072] In this embodiment, the method can sample rocks according to different sampling requirements. When the rocks need to be crushed, the rocks that have entered the exploration drill bit 6 can be crushed directly and stored. The rock particles inside can then be taken out and placed into a designated container, thus eliminating the need for subsequent crushing work and drill bit replacement, improving work efficiency, and reducing usage costs.

[0073] Working principle: The drive motor 17 drives the stepped column 20 located at the bottom of the upper sealing plate 18 to rotate. The upper toothed groove 21 on the stepped column 20 drives the inner toothed ring 19 at the top of the drive ring 8 to rotate, which in turn drives the drive ring 8 to rotate. The rotation of the drive ring 8 drives the rotation of the exploration drill bit 6. At the same time, the hydraulic telescopic rod 2 drives the drive frame 3 and the mounting plate 4 to descend, so that the exploration drill bit 6 can perform drilling and sampling work at the designated sampling point.

[0074] When it is necessary to sample and break the rock, the exploration drill bit 6 continues to move downward, allowing the rock to come into contact with the conical cover 14. This causes the conical cover 14 to be pushed upward by the rock, which in turn moves the hollow turntable 13 upward. The drive shaft 23 is slidably connected to the top of the exploration head. Therefore, when the hollow turntable 13 moves upward, it will push the drive gear 22 upward through the drive shaft 23. This allows the drive gear 22 to mesh with the lower tooth groove 24 at the bottom of the stepped column 20. When the lower tooth groove 24 meshes with the drive gear 22, the rotation of the stepped column 20 will also drive the drive gear 22 to rotate, which in turn drives the rotation of the hollow turntable 13 and the conical cover 14 through the drive shaft 23.

[0075] When the bottom of the conical cover 14 comes into contact with the rock in the rock layer, the crushing blade 16 also comes into contact with it. The rotation of the conical cover 14 will drive the crushing blade 16 to rotate, and the crushing blade 16 will crush the rock. A collection groove 15 is also opened at the bottom of the conical cover 14. The crushed rock is squeezed upward by the rock below and will be squeezed into the collection groove 15. As the amount of crushed rock gradually increases, the crushed rock particles are smaller than the width of the collection groove 15 and are gradually squeezed into the conical cover 14 and the hollow turntable 13. The bottom of the hollow turntable 13 is connected to the inside of the conical cover 14, so the crushed rock will enter the hollow turntable 13 and the conical cover 14 for collection.

[0076] A screw is rotatably connected to the top of the upper sealing plate 18, and the bottom end of the screw is inserted into the drive ring 8 and rotatably connected to the unloading gear 27.

[0077] After the crushed rock samples are taken out, the exploration drill bit 6 is removed, the screw is turned to move the screw upward, and the unloading gear 27 is moved upward until the unloading gear 27 meshes with the middle tooth groove 28 on the stepped column 20. Then the drive motor 17 is started, the drive motor 17 drives the stepped column 20 to rotate, and then drives the unloading gear 27 to rotate, so that the unloading gear 27 drives the unloading rod 29 to rotate. The unloading rod 29 drives the inner rotating shaft 25 to rotate, and drives the lever 26 to rotate, so that the lever 26 pushes the crushed stone particles located in the conical cover 14, thereby discharging the crushed stone particles from the collection groove 15. The corresponding collection container is placed at the bottom of the exploration drill bit 6 for collection.

[0078] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0079] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A rock strata sampling device for geological exploration, characterized in that, include: The main support (1) is fixedly connected to the top of the main support (1) with a hydraulic telescopic rod (2). The telescopic end of the hydraulic telescopic rod (2) passes through the top side wall of the main support (1) and is fixedly connected to a drive frame (3). A mounting plate (4) is slidably connected between two opposite side walls inside the main support (1). A secondary support (5) is fixedly connected between the bottom side wall of the drive frame (3) and the top side wall of the mounting plate (4). An exploration drill bit (6) is embedded and rotatably connected to the bottom center of the mounting plate (4). The exploration drill bit (6) is equipped with a crushing component (7) for crushing rock blocks at a designated location. The top side of the mounting plate (4) is rotatably connected to a drive ring (8). The bottom side wall of the drive ring (8) is fixedly connected to the top side wall of the exploration drill bit (6). A transmission component (9) is provided inside the drive ring (8) to drive the exploration drill bit (6) and the breaker (7). The drive ring (8) is also equipped with a discharge component (10) for discharging crushed rock blocks; A drive component (12) is provided inside the drive frame (3) for driving the transmission component (9); The crushing component (7) includes a hollow turntable (13), which is slidably connected to the inner wall of the exploration drill bit (6). A conical cover (14) is fixedly connected to the bottom of the hollow turntable (13). A number of storage slots (15) communicating with the inside of the hollow turntable (13) are opened on the bottom side wall of the conical cover (14). A crushing blade (16) is fixedly connected to the bottom side wall of the conical cover (14) at the edge of the storage slot (15). The drive unit (12) includes a drive motor (17), which is fixedly connected to the bottom side of the drive frame (3), and the output shaft of the drive motor (17) extends into the drive ring (8). The transmission component (9) includes an upper sealing plate (18), which is rotatably connected to the top of the drive ring (8) and rotatably connected to the output shaft of the drive motor (17); An internal toothed ring (19) is fixedly connected to the top of the inner circumference of the drive ring (8), and a stepped column (20) is rotatably connected to the bottom side wall of the upper sealing plate (18). An upper toothed groove (21) that meshes with the internal toothed ring (19) is opened on the upper part of the outer circumference of the stepped column (20). The transmission component (9) also includes a transmission gear (22), which is located in the middle of the top side wall of the exploration drill bit (6). The bottom of the transmission gear (22) is fixedly connected to a transmission shaft (23), and the bottom end of the transmission shaft (23) extends into the exploration drill bit (6) and is fixedly connected to the top side wall of the hollow turntable (13). The bottom of the outer periphery of the stepped column (20) is provided with a lower tooth groove (24) that cooperates with the transmission gear (22). There is a gap between the bottom of the stepped column (20) and the top of the transmission gear (22).

2. The rock strata sampling device for geological exploration according to claim 1, characterized in that, The unloading component (10) includes an inner rotating shaft (25), which is rotatably connected to the inner top wall of the hollow turntable (13). A lever (26) is fixedly connected to the bottom outer periphery of the inner rotating shaft (25), and a gap is left between the bottom side wall of the lever (26) and the inner bottom side wall of the conical cover (14).

3. The rock strata sampling device for geological exploration according to claim 2, characterized in that, The unloading component (10) also includes an unloading gear (27), which is rotatably connected to the top of the transmission gear (22). The middle part of the outer periphery of the stepped column (20) is provided with a middle tooth groove (28) that meshes with the unloading gear (27). The bottom of the unloading gear (27) is fixedly connected to an unloading rod (29), and the bottom end of the unloading rod (29) passes through the transmission shaft (23) and is fixedly connected to the inner rotating shaft (25).

4. A rock strata sampling device for geological exploration according to claim 3, characterized in that, The two ends of the bottom side of the main support (1) are V-shaped, and the two ends of the bottom side of the main support (1) are fixedly connected with tapered nails (11).

5. A method for sampling rock strata in geological exploration, characterized in that, The geological exploration rock strata sampling device according to any one of claims 1-4 includes the following steps: S101: Drill a hole in the ground to the designated sampling point, fix the main support to the ground with a cone nail, and align the exploration drill bit with the sampling point; S102: After drilling to the designated position, remove excess rock, soil and other debris from the exploration drill bit, and then continue drilling and take samples. S103: The exploration drill bit drills a hole at the designated point, the exploration drill bit is pulled out, and then the rock column inside is taken out to complete the sampling of the rock block; S104: When a sample needs to be crushed, the exploration drill bit does not need to be pulled out. Continue drilling downwards so that the top of the internal rock column comes into contact with the crushing piece, crushing the top of the rock column and collecting it. S105: The exploration drill bit is then removed, and the soil and impurities inside the drill bit are cleaned. S106: Use the unloading device to discharge the crushed rock from the crusher, and use a container to collect it from the end of the exploration drill bit.

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