Sampling drilling machine for exploration and exploration sampling method

Abstract

The invention relates to a sampling drilling machine for exploration and an exploration sampling method. The sampling drilling machine comprises a geological drilling machine and a collecting assembly. The geological drilling rig comprises a sampling drill bit; the collecting assembly comprises a sliding seat, a sleeve, a sliding plate, a flexible bag and a limiting ring, a plurality of connecting grooves communicating with an inner cavity of the sleeve are formed in the outer wall of the sleeve, a plurality of connecting rods are arranged on the sliding plate, the connecting rods penetrate through the connecting grooves and are connected with the limiting ring, and the bottom of the flexible bag is placed on the sliding plate; the upper end of the flexible bag overturns outwards and is arranged on the connecting ring in a sleeving manner, and the flexible bag can be arranged at the lower end of the sampling drill bit in a sleeving manner. After the sampling drill bit completes sampling, the sampling drill bit is sleeved with the flexible bag, then the sampling drill bit is knocked to enable samples in the sampling drill bit to gradually fall into the flexible bag, the flexible bag also gradually descends in the process of falling into the flexible bag, and then the flexible bag is taken away after all the samples fall into the flexible bag. And the samples are not easy to break in the sample blanking process.

Description

Technical Field

[0001] The present application relates to the technical field of exploration methods, and in particular to a sampling drill for exploration and an exploration sampling method. Background Art

[0002] At present, when conducting construction or prospecting, it is usually done by drilling samples from the local soil layer. After sampling the soil and rocks, they are collected and arranged in order, and then the sampled samples are tested and analyzed to obtain the specific geological conditions of the sampling site.

[0003] When the sampling drill takes out the sample, the sample also needs to be taken out from the sampling drill. The current common practice is to place a container with an upper opening under the sampling drill, and then tap the sampling drill to vibrate the sample in the sampling drill and drop it from the sampling drill into the container. However, when the soil quality at the sampling location is special, such as when surveying a soil layer with loose geological structure and weak adhesion between particles, when the sample falls from the sampling drill, it will cause the sample to break and be difficult to splice later, resulting in the composition of each part of the sample being different from the distribution of the original material in the soil layer, thus affecting the test results.

[0004] Therefore, it is necessary to propose a new technical solution to solve the above problems. Summary of the invention

[0005] In order to prevent the sample from being easily broken when being taken out from the sampling drill bit, the present application provides a sampling drill rig for survey and a survey sampling method.

[0006] The present application provides a sampling drill for exploration, which adopts the following technical solution: A sampling drill for exploration and an exploration sampling method, comprising a geological drill and a collection component for collecting samples; The geological drilling rig includes a sampling drill bit; The collecting assembly includes a sliding seat horizontally slidingly arranged on the geological drilling rig, a sleeve fixed on the sliding seat, a sliding plate slidingly arranged in the sleeve, a flexible bag for wrapping the sample and a limiting ring for limiting the opening position of the flexible bag. The outer wall of the sleeve is provided with a plurality of connecting grooves connected with its inner cavity, and the sliding plate is provided with a plurality of connecting rods, which pass through the connecting grooves and are connected to the limiting ring. The bottom of the flexible bag is placed on the sliding plate, and the upper end of the flexible bag is turned outward and sleeved on the connecting ring. The flexible bag can be sleeved on the lower end of the sampling drill bit.

[0007] By adopting the above technical solution, after the sampling drill bit completes sampling, the sleeve is moved to the bottom of the sampling drill bit, the flexible bag is placed on the sampling drill bit, and then the sampling drill bit is knocked to make the sample inside gradually fall into the flexible bag. In the process of falling into the flexible bag, the flexible bag also gradually descends. After all the samples fall into the flexible bag, the flexible bag sinks into the sleeve. Then, the bag mouth is tightened and the sliding plate is moved upward to be pushed out of the sleeve. Then, the flexible bag is taken away. During the sample feeding process, the sample is not easy to be broken, so that the subsequent detection is not easily affected.

[0008] Optionally: a sliding elastic member is provided below the sliding plate to push the sliding plate to move upward.

[0009] By adopting the above technical solution, when the number of samples in the flexible bag gradually increases, the sliding elastic member gradually contracts and automatically moves downward.

[0010] Optionally: A clamping assembly for limiting the lower end of the flexible bag is provided on the sliding plate, and the clamping assembly includes two clamping blocks slidably provided on the sliding plate, a clamping elastic member for automatically separating the two clamping blocks, and a limiting member for keeping the two clamping blocks in a clamped state; an extension strip is provided at the lower end of the flexible bag, and the two clamping blocks approach each other and clamp the extension strip.

[0011] By adopting the above technical solution, when the upper end of the flexible bag is sleeved on the limiting ring and the sliding plate is moved downward, the clamping assembly can be used to keep the lower end of the flexible bag connected to the sliding plate, so that the overall shape of the flexible bag is not easily affected, thereby facilitating the subsequent sleeve of the flexible bag on the sampling drill bit.

[0012] Optional: The limit members are respectively arranged on both sides of the sliding direction of the clamping block, and the limit members include a connecting block slidably arranged in the sliding plate, two limit blocks arranged on the connecting block, and a limit elastic member pushing the connecting block to move toward the clamping block. The sliding direction of the connecting block is perpendicular to the sliding direction of the clamping block. The side walls of the clamping block close to the connecting block are provided with limit grooves, and the limit blocks on the same connecting block are respectively embedded in the limit grooves of the two clamping blocks.

[0013] By adopting the above technical solution, after the two clamping blocks are brought close to each other, the limit block can be inserted into the limit groove, so that the two clamping blocks remain in a clamped state, so that the clamping block can stably limit the position of the extension strip, thereby limiting the lower end position of the flexible bag.

[0014] Optionally: two reset rods are provided at the bottom of the sleeve, and the reset rods respectively push a limit block to move. A guide slope is provided at the upper end of the reset rod, and the end of the guide slope away from the abutment position of the clamping block is inclined downward. The upper end of the reset rod can be passed through the sliding plate, and the guide slope can abut against the connecting block and push the connecting block away from the clamping block.

[0015] By adopting the above technical solution, the sliding plate is moved downward so that the upper end of the reset rod contacts the connecting block, thereby causing the connecting block to move in a direction away from the clamping block, so that the position of the clamping block is no longer limited and the two clamping blocks are moved away from each other, thereby achieving automatic separation of the clamping block and the flexible bag.

[0016] Optionally: a positioning assembly for limiting the upward movement of the sliding plate is also provided in the sleeve, the positioning assembly includes a positioning block slidably provided on the sleeve and a positioning elastic member for pushing the positioning block to move toward the sliding plate, a positioning groove is coaxially provided on the outer wall of the sliding plate, the positioning groove passes through the upper end of the sliding plate, a contact block is provided on the end face of the positioning block close to the sliding plate, the lower end of the contact block can abut against the lower end face of the positioning groove, and a pushing inclined surface is provided on the upper end of the abutting block, the pushing inclined surface is inclined downward close to one end of the sliding plate, and the pushing inclined surface can abut against the sliding plate.

[0017] By adopting the above technical solution, after the sample enters the flexible bag, the position of the sliding plate is limited by moving the sliding plate to under the positioning block, and then the opening of the flexible bag is tightened. During the process of tightening the bag opening of the flexible bag, the position of the flexible bag can still be limited, making the tightening process of the bag opening of the flexible bag more convenient.

[0018] Optionally: one end of the connecting block away from the clamping block extends out of the sliding plate, and a reset slope is provided on the end surface of the connecting block extending out of the sliding plate, the upper end of the reset slope is inclined toward the direction of the clamping block, and the reset slope can simultaneously abut against the positioning block and the abutment block to push the positioning block away from the sliding plate.

[0019] By adopting the above technical solution, after the clamping block no longer clamps the extension strip, the reset slope on the connecting block can abut against the positioning block and the abutment block, thereby driving the positioning block to move away from the clamping block, so that the sliding plate can move to the top of the positioning assembly.

[0020] A survey sampling method comprises the following steps: S1. Insert the extension strip of the flexible bag between the two clamping blocks, pinch the two clamping blocks to bring them close to each other so that the limit block is inserted into the limit groove to limit the positions of the two clamping blocks, so that the clamping blocks clamp the extension strip; S2, turning the bag mouth of the flexible bag outward and putting it on the limiting ring; S3, after the drilling rig completes sampling and the sampling drill bit is retracted upward, the limit ring is pressed downward so that the upper end of the limit ring is lower than the lower end surface of the sampling drill bit, and then the sleeve is moved to the bottom of the sampling drill bit, so that the limit ring rises and is sleeved outside the sampling rotation; S4, tap the sampling drill bit to move the sample in the sampling drill bit downward into the flexible bag, and gradually push the limit ring downward. When all the samples in the sampling drill bit fall into the flexible bag, press the fiber ring downward to move the sliding plate below the positioning block; S5, move the sliding seat in a direction away from the sampling drill bit, remove the bag opening of the flexible bag from the limiting ring and tie it tightly; S6. Press the limit ring downward until the reset rod is inserted into the sliding plate to push the limit block out of the limit groove, gradually reduce the downward pressure on the limit ring, the sliding plate moves upward until it stops, and remove the flexible bag from the sliding plate and store it.

[0021] By adopting the above technical solution, when the sample escapes from the sampling drill bit, it can be received by the flexible bag, so that the sample is not easily broken, and the subsequent detection process of the sample is not easily affected.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. After the sampling drill bit completes sampling, the sleeve is moved to the bottom of the sampling drill bit, and the flexible bag is placed on the sampling drill bit. Then the sampling drill bit is knocked to make the sample inside gradually fall into the flexible bag. In the process of falling into the flexible bag, the flexible bag also gradually drops. After all the samples fall into the flexible bag, the flexible bag is completely sunk into the sleeve. Then the bag mouth is tied and the sliding plate is moved upward to push the flexible bag out of the sleeve. Then the flexible bag is taken away. In the process of sample feeding, the sample is not easy to be broken, so that the subsequent detection is not easily affected; 2. When the upper end of the flexible bag is sleeved on the limiting ring and the sliding plate is moved downward, the clamping assembly can be used to keep the lower end of the flexible bag connected to the sliding plate, so that the overall shape of the flexible bag is not easily affected, thereby facilitating the subsequent sleeve of the flexible bag on the sampling drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application; Figure 2 This is a schematic diagram for illustrating the structure of a collection component according to an embodiment of the present application; Figure 3 for Figure 2 A magnified view of part A; Figure 4 This is a schematic diagram for illustrating the structure of a clamping block according to an embodiment of the present application; Figure 5This is a schematic diagram for illustrating the matching structure of the connecting block and the positioning block according to an embodiment of the present application; Figure 6 for Figure 4 Enlarged view of part B.

[0024] In the figure, 1, geological drilling rig; 11, sampling drill bit; 12, mounting frame; 2, collecting assembly; 21, sliding seat; 22, sleeve; 221, connecting groove; 23, sliding plate; 231, positioning groove; 24, flexible bag; 241, extension strip; 25, limiting ring; 26, connecting rod; 27, sliding elastic member; 28, cover plate; 281, mounting groove; 29, reset rod; 291, guide slope; 3, clamping assembly; 31, clamping block; 311, pushing groove; 332, limiting groove; 32, clamping elastic member; 33, limiting member; 331, connecting block; 3311, reset slope; 332, limiting block; 333, limiting elastic member; 4, positioning assembly; 41, positioning block; 42, positioning elastic member; 43, abutting block; 431, pushing slope; 44, abutting sleeve. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with the accompanying drawings.

[0026] The present application discloses a sampling drill for surveying, such as Figure 1 and Figure 2As shown, it includes a geological drill 1 and a collection assembly 2 arranged on the geological drill 1 for collecting samples. The geological drill 1 includes a sampling drill bit 11 for drilling. The sampling drill bit 11 is inserted into the soil or rock to collect the rock or soil in the sampling drill bit 11. Then the sampling drill bit 11 retracts to collect the sample in the sampling drill bit 11. The collection assembly 2 includes a sliding seat 21 slidably arranged on the geological drill rig, a sleeve 22 fixed on the sliding seat 21, a sliding plate 23 slidably arranged in the sleeve 22, a flexible bag 24 for wrapping the sample, and a limit ring 25 for limiting the opening position of the flexible bag 24. A mounting frame 12 is installed on the body of the geological machine. The mounting frame 12 is arranged outside the sampling drill bit 11, and the sampling drill bit 11 passes through the mounting frame 12 for sampling. The sliding seat 21 is slidably arranged on the mounting frame 12 through the guide rail. The sliding seat 21 is arranged on the side of the sampling drill bit 11 away from the body. The sliding seat 21 can be moved to the bottom of the sampling drill bit 11 after being lifted, and can also be moved to a position away from the sampling drill bit 11. The sleeve 22 is arranged with an upper opening, and its inner diameter is larger than the inner diameter of the sampling drill bit 11. The sliding plate 23 slides vertically in the sampling drill bit 11, and the outer wall of the sliding plate 23 is kept in contact with the inner wall of the sleeve 22. A plurality of connecting grooves 221 communicating with its inner cavity are circumferentially opened on the outer wall of the sleeve 22, and the connecting grooves 221 are arranged parallel to the axis of the sleeve 22. A plurality of connecting rods 26 are arranged on the outer wall of the sliding plate 23. The connecting rods 26 pass through the connecting grooves 221 and are fixed to the limiting rings 25. The connecting rods 26 are arranged in an L shape. The horizontal part of the connecting rods 26 passes through the connecting grooves 221 and is slidably matched with the connecting grooves 221. The upper end of the vertical part of the connecting rods 26 is fixed to the limiting rings 25. The inner diameter of the limiting rings 25 is larger than the outer diameter of the sampling drill bit 11, so that the limiting rings 25 can be sleeved outside the sampling drill bit 11 and a gap is left between the limiting rings 25 and the sampling drill bit 11. The flexible bag 24 can be placed in the sleeve 22, and the lower end of the flexible bag 24 abuts against the upper end of the sliding plate 23. The opening of the flexible bag 24 is flipped outward and sleeved on the limiting ring 25, so that after the sliding plate 23 and the limiting ring 25 move upward, the flexible bag 24 can be directly sleeved on the outside of the sampling drill bit 11, and then the sampling drill bit 11 is knocked to make the sample in the sampling drill bit 11 move downward and fall into the flexible bag 24. In the process of the sample falling into the flexible bag 24, the flexible bag 24 gradually moves downward, so that the sample can always be supported by the flexible bag 24, so that the sample is not easily broken.

[0027] A sliding elastic member 27 is also provided in the sleeve 22 to push the sliding plate 23 upward. In this embodiment, the sliding elastic member 27 is a spring. One end of the sliding elastic member 27 abuts against the lower end of the sliding plate 23, and the other end of the sliding elastic member 27 abuts against the bottom surface of the inner cavity of the sleeve 22. Therefore, when the flexible bag 24 needs to be sleeved on the limiting ring 25, the sliding plate 23 can be pushed by the sliding elastic member 27 to approach the upper end opening of the sleeve 22, so that the lower end of the flexible bag 24 can better abut against the sliding plate 23.

[0028] like Figure 3 and Figure 4As shown, when the flexible bag 24 is sleeved on the limiting ring 25, the lower end of the flexible bag 24 is difficult to be stably placed on the sliding plate 23. Therefore, a clamping assembly 3 for limiting the lower end of the flexible bag 24 is also provided on the sliding plate 23. The clamping assembly 3 includes two clamping blocks 31 slidably provided on the sliding plate 23, a clamping elastic member 32 for driving the two clamping blocks 31 to automatically separate, and a limiting member 33 for keeping the two clamping blocks 31 in a clamped state. The clamping elastic member 32 is a spring in this embodiment, and the clamping elastic member 32 is provided between the two clamping blocks 31 so as to push the two clamping blocks 31 away from each other. The sliding plate 23 is open at the top, and a cover plate 28 is installed at the upper end of the sliding plate 23 to close the opening. The cover plate 28 is provided with a mounting groove 281 that penetrates the cover plate 28. Two clamping blocks 31 are both arranged in the sliding plate 23 and move along the radial direction of the sliding plate 23. The upper ends of the two clamping blocks 31 abut against the lower end of the cover plate 28 and always close the mounting groove 281. The upper ends of the two clamping blocks 31 are both provided with a pushing groove 311, and the lower ends of the flexible bag 24 are both provided with an extension bar 241. By applying force to the pushing groove 311, the two clamping blocks 31 are driven to approach each other and clamp the extension bar 241. Two limiting members 33 are respectively arranged on both sides of the clamping block 31, and the limiting members 33 include a connecting block 331 slidably arranged in the sliding plate 23, two limiting blocks 332 arranged on the connecting block 331, and a limiting elastic member 333 that pushes the connecting block 331 to move toward the clamping block 31. The sliding direction of the connecting block 331 is perpendicular to the sliding direction of the clamping block 31. The limit block 332 is arranged on the end face of the connecting block 331 close to the clamping block 31. The end face of the clamping block 31 close to the limit block 332 is provided with a limit groove 332. The two limit blocks 332 on the same connecting block 331 can be respectively inserted into the limit grooves 332 on the clamping block 31 abutting against each other. The end face of the limit block 332 close to the clamping block 31 is also provided with a chamfer. After the two clamping blocks 31 clamp the extension strip 241, the limit block 332 is inserted into the limit groove 332 to limit the relative position of the two clamping blocks 31. The lower end of the connecting block 331 is also provided with a transmission block. The limit elastic member 333 is a spring in this embodiment. One end of the limit elastic member 333 abuts against a side wall of the transmission block away from the clamping block 31, and the other end of the limit elastic member 333 abuts against the inner wall of the sliding plate 23.

[0029] like Figure 5As shown, in order to allow the clamping blocks 31 to move away from each other when the flexible bag 24 needs to be taken out, two reset rods 29 are also provided at the bottom of the sleeve 22. One reset rod 29 can push a connecting block 331 to move. A guide slope 291 is provided at the upper end of the reset rod 29. The end of the guide slope 291 close to the transmission block connected thereto is inclined downward. The upper end of the reset rod 29 is inserted into the sliding plate 23, and the guide slope 291 abuts against the end of the transmission block close to the clamping block 31, thereby pushing the limit block 332 out of the limit groove 332.

[0030] like Figure 6 As shown, since the opening of the flexible bag 24 needs to be tied before the flexible bag 24 is taken out of the sleeve 22, if the sliding plate 23 moves upward directly, the overall position of the flexible bag 24 cannot be well defined, and it is more troublesome to tie the opening of the bag. Therefore, a positioning assembly 4 is also provided in the sleeve 22 to limit the upward movement of the sliding plate 23. The positioning assembly 4 is respectively provided on both sides of the sliding plate 23 and is provided close to the limiter 33. The positioning assembly 4 includes a positioning block 41 slidably provided in the sleeve 22 and a positioning elastic member 42 that pushes the positioning block 41 to move toward the sliding plate 23. The two positioning blocks 41 are circumferentially provided on the sleeve 22. The positioning block 41 is passed through the sleeve 22 and slides horizontally. The end surface of the positioning block 41 close to the sliding plate 23 is provided with an abutting block 43, and the upper end of the sliding plate 23 is coaxially provided with a positioning groove 231, which penetrates the side wall of the positioning block 41, so that the positioning block 41 can abut against the side wall of the sliding plate 23, and the lower end of the abutting block 43 can abut against the bottom surface of the positioning groove 231. A pushing inclined surface 431 is also provided on the upper end surface of the abutting block 43, and one end of the pushing inclined surface 431 close to the sliding plate 23 is inclined downward, so that when the sliding plate 23 moves downward, the sliding plate 23 can abut against the pushing inclined surface 431, thereby pushing the positioning block 41 away from the sliding plate 23, so that the sliding plate 23 can move below the positioning block 41. In this embodiment, the positioning elastic member 42 is a spring. An anti-slip block is provided at one end of the positioning block 41 away from the sliding plate 23. One end of the positioning elastic member 42 abuts against the anti-slip block. An abutment sleeve 44 is also threadedly connected to the outer wall of the sleeve 22. The abutment sleeve 44 is sleeved outside the positioning block 41. The other end of the positioning elastic member 42 abuts against the inner wall of the abutment sleeve 44.

[0031] like Figure 5As shown, the end of the connecting block 331 away from the clamping block 31 can extend out of the sliding plate 23, and when the limit block 332 is inserted into the limit groove 332, the end of the connecting block 331 away from the clamping block 31 is located in the sliding plate. The end of the connecting block 331 away from the clamping block 31 is provided with a reset slope 3311, and the upper end of the reset slope 3311 is inclined toward the direction of the clamping block 31. After the connecting block 331 extends out of the sliding plate 23, the reset slope 3311 of the connecting block 331 is located outside the sliding plate 23 and the limit block 332 abuts against the side wall of the clamping block 31, so that the position of the connecting block 331 relative to the sliding plate 23 is limited. Then the sliding plate 23 moves upward, and the reset slope 3311 abuts against the bottom of the positioning block 41 abutting against the sliding plate 23, thereby pushing the positioning block 41 away from the sliding plate 23. Then the reset slope 3311 continues to contact the abutting block 43 to push the abutting block 43 away from the sliding plate 23, so that the sliding plate 23 can move to the top of the positioning assembly 4.

[0032] The implementation principle of this embodiment is as follows: insert the extension strip 241 at the lower end of the flexible bag 24 between the two clamping blocks 31, then pinch the clamping blocks 31 to bring the two close together to clamp the extension strip 241, then align the limit block 332 with the limit groove 332 so that the limit block 332 is inserted into the limit groove 332 under the push of the spring to complete the limiting of the clamping block 31, turn the upper end of the flexible bag 24 outward and sleeve it on the limit ring 25, press the sliding plate 23 downward to make the upper end of the limit ring 25 lower than the sampling drill bit 11 and higher than the positioning component 4, then move the sleeve 22 to below the sampling drill bit 11, and move the fiber ring upward to It is sleeved outside the sampling drill bit 11, and the sampling drill bit 11 is knocked to make the sample fall into the flexible bag 24. After the collection is completed, the sliding plate 23 is moved downward and contacts with the positioning component 4, the sleeve 22 is moved away from the sampling drill bit 11, the bag mouth of the flexible bag 24 is tightened, and the sliding plate 23 is pressed downward to make the reset rod 29 contact with the connecting block 331, thereby driving the limit block 332 to disengage from the clamping block 31, and the clamping blocks 31 move away from each other, and the connecting block 331 extends out of the sliding plate 23 and contacts with the positioning block 41, thereby pushing the positioning block 41 away from the sliding plate 23, and the flexible bag 24 can be taken out after the sliding plate 23 moves upward.

[0033] A survey sampling method comprises the following steps: S1, insert the extension strip 241 of the flexible bag 24 between the two clamping blocks 31, pinch the two clamping blocks 31 to bring the clamping blocks 31 closer to each other so that the limiting block 332 is inserted into the limiting groove 332 to limit the positions of the two clamping blocks 31, so that the clamping blocks 31 clamp the extension strip 241; S2, turning the opening of the flexible bag 24 outward and sleeve it on the limiting ring 25; S3, after the drilling rig completes sampling and the sampling drill bit 11 is retracted upward, the limit ring 25 is pressed downward to make the upper end of the limit ring 25 lower than the lower end surface of the sampling drill bit 11, and then the sleeve 22 is moved to the bottom of the sampling drill bit, so that the limit ring 25 rises and is sleeved outside the sampling rotation; S4, tapping the sampling drill bit 11 to move the sample in the sampling drill bit 11 downward into the flexible bag 24, and gradually pushing the limit ring 25 downward. When all the samples in the sampling drill bit 11 fall into the flexible bag 24, the fiber ring is pressed downward to move the sliding plate 23 to below the positioning block 41; S5, move the sliding seat 21 in a direction away from the sampling drill bit 11, remove the bag opening of the flexible bag 24 from the limiting ring 25 and tie it up; S6. Press the limit ring 25 downward until the reset rod 29 is inserted into the sliding plate 23 to push the limit block 332 out of the limit groove 332, gradually reduce the downward pressure on the limit ring 25, and the sliding plate 23 moves upward to stop, and remove the flexible bag 24 from the sliding plate 23 and store it.

[0034] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sampling drill for exploration, characterized in that: It comprises a geological drilling machine (1) and a collection component (2) for collecting samples; The geological drilling rig (1) comprises a sampling drill bit (11); The collecting assembly (2) comprises a sliding seat (21) horizontally slidingly arranged on a geological drilling rig, a sleeve (22) fixed on the sliding seat (21), a sliding plate (23) slidingly arranged in the sleeve (22), a flexible bag (24) for wrapping a sample, and a limiting ring (25) for limiting the opening position of the flexible bag (24); a plurality of connecting grooves (221) communicating with an inner cavity of the sleeve (22) are provided on the outer wall of the sleeve (22); a plurality of connecting rods (26) are provided on the sliding plate (23); the connecting rods (26) pass through the connecting grooves (221) and are connected to the limiting ring (25); the bottom of the flexible bag (24) is placed on the sliding plate (23); the upper end of the flexible bag (24) is turned outward and sleeved on the connecting ring; the flexible bag (24) can be sleeved on the lower end of the sampling drill bit (11).

2. A sampling drill for exploration according to claim 1, characterized in that: A sliding elastic member (27) is provided below the sliding plate (23) for pushing the sliding plate (23) to move upward.

3. A sampling drill for exploration according to claim 1, characterized in that: The sliding plate (23) is provided with a clamping assembly (3) for limiting the lower end of the flexible bag (24), the clamping assembly (3) comprising two clamping blocks (31) slidably arranged on the sliding plate (23), a clamping elastic member (32) for automatically separating the two clamping blocks (31), and a limiting member (33) for keeping the two clamping blocks (31) in a clamped state, the lower end of the flexible bag (24) is provided with an extension strip (241), and the two clamping blocks (31) are close to each other and clamp the extension strip (241).

4. A sampling drill for exploration according to claim 3, characterized in that: The limiting member (33) is respectively arranged on both sides of the sliding direction of the clamping block (31), and the limiting member (33) comprises a connecting block (331) slidably arranged in the sliding plate (23), two limiting blocks (332) arranged on the connecting block (331), and a limiting elastic member (333) for pushing the connecting block (331) to move toward the clamping block (31); the sliding direction of the connecting block (331) is perpendicular to the sliding direction of the clamping block (31); the side walls of the clamping block (31) close to the connecting block (331) are provided with limiting grooves (332); the limiting blocks (332) on the same connecting block (331) are respectively embedded in the limiting grooves (332) of the two clamping blocks (31).

5. A sampling drill for exploration according to claim 4, characterized in that: Two reset rods (29) are arranged at the bottom of the sleeve (22), and the reset rods (29) respectively push a limit block (332) to move. A guide slope (291) is provided at the upper end of the reset rod (29), and one end of the guide slope (291) away from the abutment position of the clamping block (31) is inclined downward. The upper end of the reset rod (29) can be inserted into the sliding plate (23), and the guide slope (291) can abut against the connecting block (331) and push the connecting block (331) away from the clamping block (31).

6. A sampling drill for exploration according to claim 5, characterized in that: A positioning assembly (4) for limiting the upward movement of the sliding plate (23) is also provided in the sleeve (22), and the positioning assembly (4) includes a positioning block (41) slidably provided on the sleeve (22) and a positioning elastic member (42) for pushing the positioning block (41) to move toward the sliding plate (23); a positioning groove (231) is coaxially provided on the outer wall of the sliding plate (23), and the positioning groove (231) passes through the upper end of the sliding plate (23); an abutment block (43) is provided on the end face of the positioning block (41) close to the sliding plate (23), and the lower end of the abutment block (43) can abut against the lower end face of the positioning groove (231); a pushing inclined surface (431) is provided on the upper end of the abutment block (43), and the pushing inclined surface (431) is inclined downward near one end of the sliding plate (23), and the pushing inclined surface (431) can abut against the sliding plate (23).

7. A sampling drill for exploration according to claim 6, characterized in that: One end of the connecting block (331) away from the clamping block (31) extends out of the sliding plate (23); a reset slope (3311) is provided on the end surface of the connecting block (331) extending out of the sliding plate (23); the upper end of the reset slope (3311) is inclined toward the clamping block (31); the reset slope (3311) can simultaneously abut against the positioning block (41) and the abutting block (43), thereby pushing the positioning block (41) away from the sliding plate (23).

8. A survey sampling method, using the sampling drill for survey according to any one of claims 1 to 7, characterized in that: The steps include: S1, inserting the extension strip (241) of the flexible bag (24) between the two clamping blocks (31), pinching the two clamping blocks (31) to bring the clamping blocks (31) closer to each other so that the limiting block (332) is inserted into the limiting groove (332) to limit the positions of the two clamping blocks (31), so that the clamping blocks (31) clamp the extension strip (241); S2, turning the bag opening of the flexible bag (24) outward and sleeve it on the limiting ring (25); S3, after the drilling rig completes sampling and the sampling drill bit (11) is retracted upward, the limit ring (25) is pressed downward to make the upper end of the limit ring (25) lower than the lower end surface of the sampling drill bit (11), and then the sleeve (22) is moved to the bottom of the sampling drill bit, so that the limit ring (25) rises and is sleeved outside the sampling rotation; S4, tapping the sampling drill bit (11) to move the sample in the sampling drill bit (11) downward into the flexible bag (24), and gradually pushing the limit ring (25) downward. When all the samples in the sampling drill bit (11) fall into the flexible bag (24), the fiber ring is pressed downward to move the sliding plate (23) below the positioning block (41); S5, moving the sliding seat (21) in a direction away from the sampling drill bit (11), removing the bag opening of the flexible bag (24) from the limiting ring (25) and tying it tightly; S6. Press the limit ring (25) downward until the reset rod (29) is inserted into the sliding plate (23) to push the limit block (332) out of the limit groove (332), gradually reduce the downward pressure on the limit ring (25), the sliding plate (23) moves upward until it stops, and remove the flexible bag (24) from the sliding plate (23) and store it.

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