A sampling device for a rock strata exploration project

Abstract

The application belongs to the technical field of core sampling, in particular to a sampling device for rock stratum exploration engineering, which comprises a machine base; the end surface of the machine base is slidably connected with a sampling frame through a No. 1 hydraulic cylinder, and a plurality of limiting grooves are formed in the sampling frame; the sampling frame is arranged to store the core samples taken from different areas, thereby reducing the risk of sample confusion and the probability of subsequent exploration work rechecking, and ensuring the accuracy of the data of the exploration area; the sampling frame is arranged to store a plurality of samples in sequence according to the detection order of the exploration area, thereby reducing the time for searching for samples, realizing flow production, and improving the work efficiency; the sampling frame is used to store the plurality of samples in order, which not only can reasonably utilize the space, reduce the disorderly stacking of the samples, and avoid the disorder of the working environment, but also can increase the electronic recording equipment, and make the data management more standardized, scientific, and efficient.

Description

Technical Field

[0001] This invention belongs to the field of core sampling technology, specifically a sampling device for rock strata exploration engineering. Background Technology

[0002] Sampling equipment in rock strata exploration engineering is a specialized device used to obtain undisturbed or representative samples from underground rock strata. It typically consists of a core drill bit, a core tube, a drill rod, and auxiliary tools. The core drill bit cuts through the rock strata by rotation to form a cylindrical core, while the core tube is used to contain and protect the core, preventing it from breaking or becoming contaminated during the extraction process.

[0003] The outer tube of the dual-tube coring device rotates to break the rock, while the inner tube remains stationary to protect the core structure. The semi-combined tube and liner design facilitates the recovery of samples from loose and broken strata. In addition, the directional coring device can record the in-situ orientation of the core for geological structural analysis. The sampling device needs to be used in conjunction with a flushing system to cool the drill bit and remove rock cuttings to ensure the quality and efficiency of the coring. The core samples obtained are ultimately used for geological research, rock strata exploration, and engineering testing.

[0004] In the process of core sampling during rock strata exploration, although traditional sampling devices can effectively take multiple samples in the exploration area, their main problem lies in the labeling and management of the samples after collection. If the samples are not clearly labeled and classified in a timely manner after each sampling, the risk of sample confusion will increase, which is the so-called cross-contamination phenomenon. This phenomenon not only easily leads to the loss of accuracy of data in the exploration area, but also brings additional re-inspection burden to subsequent exploration work, prolongs the overall exploration time and increases costs.

[0005] Therefore, the present invention provides a sampling device for rock strata exploration engineering. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: A sampling device for rock strata exploration engineering according to the present invention includes a base; a sampling frame is slidably connected to the end face of the base through a hydraulic cylinder, and the sampling frame is provided with multiple limiting grooves; two baffles are fixedly connected to each other in the limiting grooves on the sampling frame; a sampling tube is provided in each of the multiple limiting grooves of the sampling frame; a drill bit is fixedly connected to the bottom end of the sampling tube; and a shielding frame is fixedly connected to the base.

[0008] Preferably, the inner wall of the sampling frame has a limited sliding groove, and the limited sliding groove is located in the middle of the limiting groove; the inner wall of the limited sliding groove of the sampling frame is rotatably connected to a rotating shaft by a torsion spring; a sleeve plate is fixedly connected to the outer wall of the rotating shaft, and the inner wall of the sleeve plate is provided with anti-slip protrusions.

[0009] Preferably, the inside of the sampling frame is provided with a bottom plate, and the bottom plate is located at the bottom of the limiting groove; the end face of the bottom plate is fixedly connected with a rubber block, and the end face of the rubber block is provided with a conical column, and the outer wall of the rubber block is relatively provided with two intercepting grooves; the inner wall of the limiting groove of the sampling frame is fixedly connected with two limiting rods in pairs, and the limiting rods correspond to the intercepting grooves.

[0010] Preferably, the inner wall of the sampling frame and located at the bottom of the limiting groove is slidably connected with a sliding plate; the sliding plate is provided with two grooves; the sliding plate is fixedly connected with an elastic rope, and the end of the elastic rope away from the sliding plate is fixedly connected to the outer wall of the bottom plate.

[0011] Preferably, the two sides of the sampling frame are fixedly connected with a plurality of elastic sheets, and the plurality of elastic sheets on the two sides of the sampling frame are oppositely arranged; the end of the elastic sheet away from the sampling frame is fixedly connected with a knocking block.

[0012] Preferably, the knocking block is fixedly connected with a magnetic block; the sampling tube can be magnetically attracted to the magnetic block.

[0013] Preferably, the end face of the machine base is fixedly connected with a rack; the rack is slidably connected with a lifting frame through a second hydraulic cylinder; the bottom end of the lifting frame is slidably connected with a sliding seat through an electric sliding block; the bottom end of the sliding seat is fixedly connected with a servo motor; the output end of the servo motor is fixedly connected with a connecting rod.

[0014] Preferably, the outer wall of the connecting rod is fixedly connected with a plurality of clamping blocks, and the cross section of the clamping block is L-shaped; the top end of the sampling tube is provided with a plurality of clamping grooves, and the shapes of the clamping blocks and the clamping grooves correspond.

[0015] Preferably, the end face of the machine base is fixedly connected with a cylinder seat; the top end of the cylinder seat is fixedly connected with a scraper.

[0016] Preferably, the top end of the sampling tube is fixedly connected with a first guide cylinder; the scraper is fixedly connected with a second guide cylinder.

[0017] The beneficial effects of the present application are as follows:

[0018] 1. The sampling device of the rock stratum exploration engineering, the core of different areas is stored by the sampling frame, the risk of sample confusion and the probability of subsequent exploration work review are reduced, the accuracy of the data of the exploration area is ensured; the sampling frame capable of storing multiple samples is arranged, the samples are stored in sequence according to the detection order of the exploration area, the time of searching the samples is reduced, the flow operation is realized, and the work efficiency is improved; the multiple samples are stored in order by the sampling frame, the space is reasonably utilized, the working environment disorder caused by disordered stacking is reduced, the electronic recording equipment is added, and the data management is more standardized, scientific and efficient; the drill bit is assembled with the sampling tube in advance, the position of the sampling device is only moved a short distance during sampling, the power equipment is directly assembled with the sampling tube for sampling, the time and action of repeated assembly of the sampling tube and the drill bit are reduced, and the integrity of the samples is ensured.

[0019] 2. The sampling device of the rock stratum exploration engineering, the sampling tube is inclined by the sleeve plate rotating with the rotating shaft, the core in the sampling tube can be taken out and stored after the sampling tube is inclined, the sampling is taken calmly, and the precision and the integrity of the samples are ensured; when the sampling tube is inclined, the two opposite knocking blocks on both sides of the limiting groove can be knocked, the upper and lower areas of the sampling tube are knocked by the two knocking blocks respectively, the sheet metal is deformed and bent in the process of knocking the knocking blocks, the sampling tube and the knocking blocks are repeatedly knocked and vibrated, and the core in the sampling tube can be quickly detached. BRIEF DESCRIPTION OF DRAWINGS

[0020] The application will be further described below with reference to the drawings.

[0021] Figure 1 is a perspective view of the application;

[0022] Figure 2 is a structural schematic view of the sliding seat in the application;

[0023] Figure 3 is a structural schematic view of the sleeve plate in the application;

[0024] Figure 4 is a structural schematic view of the sampling frame in the application;

[0025] Figure 5 is a structural schematic view of the clamping groove in the application;

[0026] Figure 6 is a structural schematic view of the clamping block in the application.

[0027] In the diagram: 1. Base; 11. Sampling frame; 12. Baffle; 13. Sampling tube; 14. Drill bit; 15. Shielding frame; 2. Rotating shaft; 21. Sleeve plate; 3. Base plate; 31. Rubber block; 32. Limiting rod; 4. Slide plate; 41. Groove; 42. Elastic rope; 5. Spring piece; 51. Striking block; 6. Magnetic block; 7. Frame; 71. Lifting frame; 72. Sliding seat; 73. Servo motor; 74. Connecting rod; 8. Locking block; 81. Locking slot; 9. Cylinder seat; 91. Scraper; 92. No. 1 guide cylinder; 93. No. 2 guide cylinder. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0029] like Figures 1 to 5 As shown in the embodiment of the present invention, a sampling device for rock strata exploration includes a base 1; a sampling frame 11 is slidably connected to the end face of the base 1 via a hydraulic cylinder, and the sampling frame 11 has multiple limiting grooves; two baffles 12 are fixedly connected to each other in the limiting grooves on the sampling frame 11; sampling tubes 13 are provided in each of the multiple limiting grooves of the sampling frame 11; a drill bit 14 is fixedly connected to the bottom end of the sampling tube 13; a shielding frame 15 is fixedly connected to the base 1; during the process of core sampling in rock strata exploration, the base 1 serves as the main support for the sampling device in rock strata exploration. The base 1 is placed in a flat area, and the sampling tube 13, together with the drill bit 14, is installed on the power equipment for sampling and penetrates into the rock strata for core sampling. After the core is removed, the hydraulic cylinder drives the sampling frame 11 to slide to the power source. Below the equipment, the sampling tube 13 and drill bit 14 are inserted into a single limiting slot of the sampling frame 11. Two opposing baffles 12 block and limit the bottom of the single limiting slot. Then, the connection between the sampling tube 13 and the power equipment is disconnected. The power equipment is moved to the top of another empty sampling tube 13 on the sampling frame 11. The empty sampling tube 13 is connected to the power equipment to continue the sampling work again. The power equipment refers to the machine that drives the sampling tube 13 to take the core. By repeating the sampling, the rock cores sampled from different areas can be stored on the sampling frame 11. The shielding frame 15 shields the area around the multiple sampling tubes 13 to reduce the entry of external impurities into the multiple sampling tubes 13. This serves to separate and store the rock core samples from multiple locations, reduce the risk of sample confusion and the probability of re-inspection in subsequent exploration work, and ensure the accuracy of the data in the exploration area.

[0030] By setting up a sampling rack 11 that can store multiple samples, and storing them sequentially according to the detection order of the exploration area, the time for finding samples can be reduced, realizing streamlined operation and thus improving work efficiency.

[0031] The multiple samples are sequentially stored by the sampling frame 11, which can reasonably utilize the space, reduce the disorder stacking to cause the working environment confusion, and increase the electronic recording equipment, so that the data management is more standardized, scientific and efficient.

[0032] The drill bit 14 is assembled with the sampling tube 13 in advance, and the sampling device only needs to be moved for a short distance to assemble the power equipment with the sampling tube 13 for sampling, so that the time and action of repeated assembly of the sampling tube 13 and the drill bit 14 are reduced, and the integrity of the sample is ensured.

[0033] The inner wall of the sampling frame 11 is provided with a limiting sliding groove, and the limiting sliding groove is located in the middle of the limiting groove; the inner wall of the limiting sliding groove of the sampling frame 11 is rotationally connected with a rotating shaft 2 through a torsion spring; the outer wall of the rotating shaft 2 is fixedly connected with a sleeve plate 21, and the inner wall of the sleeve plate 21 is provided with anti-skid convex points; when the sampling tube 13 is inserted into the limiting groove of the sampling frame 11, the sampling tube 13 is simultaneously inserted into the middle of the sleeve plate 21, so that the sleeve plate 21 is located at the center of the sampling tube 13; after the sampling work in the rock stratum exploration site is completed, the samples in the multiple sampling tubes 13 are uniformly taken out, and are sequentially pushed from the end of the sampling tube 13 to the opposite direction of the rotating shaft 2; the sampling tube 13 is tilted with the rotating shaft 2 in cooperation with the sleeve plate 21, the anti-skid convex points can prevent the sampling tube 13 from slipping off the sleeve plate 21, the torsion spring is stressed, the sleeve plate 21 is rotated in the limiting sliding groove, and the rock core in the sampling tube 13 can be taken out and saved after the sampling tube 13 is tilted, so that the sampling can be taken calmly, and the precision and integrity of the sample are ensured.

[0034] After the sample in the sampling tube 13 is taken out, the torsion spring can drive the sampling tube 13 to reset, and the multiple sampling tubes 13 are still inserted into the sampling frame 11, which plays a role in storing the multiple sampling tubes 13.

[0035] The center end face of the sleeve plate 21 is provided with a rounded corner, which can be smoothly inserted into the middle of the sleeve plate 21 when the sampling tube 13 is inserted into the limiting groove, and plays a role in guiding the insertion of the sampling tube 13.

[0036] The sampling frame 11 has a base plate 3 inside, which is located at the bottom of the limiting groove. A rubber block 31 is fixed to the end face of the base plate 3, and a conical column is provided on the end face of the rubber block 31. Two interception grooves are opened opposite each other on the outer wall of the rubber block 31. Two limiting rods 32 are fixed to the inner wall of the limiting groove of the sampling frame 11, and the limiting rods 32 correspond to the interception grooves. When the sample is stored in the sampling tube 13 on the sampling frame 11, the base plate 3 is first placed at the bottom of the limiting groove, the rubber block 31 and its conical column stand upright on the end face of the base plate 3, and after the sampling tube 13 and the drill bit 14 are inserted into the limiting groove, the conical column of the rubber block 31 fits into the hollow interior of the drill bit 14. The rubber block 31 can seal the bottom of the sampling tube 13, thereby reducing the occurrence of the rock core slipping out of the sampling tube 13 and ensuring the integrity of the sampling.

[0037] During sampling, the base plate 3 is pulled out of the limiting groove. The rubber block 31 deforms due to the rotation and compression of the sampling tube 13 and the drill bit 14 until the sampling tube 13 tilts. The operator holds the base plate 3 and pulls the rubber block 31 out of the drill bit 14 to collect the sample, which reduces the risk of the rock core falling off prematurely during sampling. After sampling, the base plate 3 and the rubber block 31 are reinserted into the drill bit 14. Then the sampling tube 13 rotates, causing the base plate 3 and the rubber block 31 to reset. The two limiting rods 32 are positioned in the two intercepting grooves respectively, that is, the sampling tube 13 is reset. After the sampling tube 13 is connected to the power equipment, the sampling tube 13 is lifted and sent for sampling. The two limiting rods 32 intercept the base plate 3 at the intercepting groove, so that the rubber block 31 on the base plate 3 can be separated from the drill bit 14, which plays the role of automatic separation of the rubber block 31 from the drill bit 14.

[0038] The inner wall of the sampling frame 11 is slidably connected to a slide plate 4 at the bottom of the limiting groove; the slide plate 4 has two grooves 41; an elastic rope 42 is fixedly connected to the slide plate 4, and the end of the elastic rope 42 away from the slide plate 4 is fixedly connected to the outer wall of the base plate 3; when sampling the sample in the sampling tube 13, first grasp the two grooves 41 and pull the slide plate 4 out, so that the base plate 3 and the bottom of the limiting groove form a rotation gap, then the slide plate 4, together with the elastic rope 42, pulls the base plate 3, so that the entire sampling tube 13 rotates and tilts with the rotating shaft 2. After sampling, first reset the sampling tube 13 and the base plate 3, and finally insert the slide plate 4 between the base plate 3 and the bottom of the limiting groove, which facilitates rapid sampling of the rock core.

[0039] like Figures 1 to 4As shown, multiple spring pieces 5 are fixed to both sides of the sampling frame 11, and the multiple spring pieces 5 on both sides of the sampling frame 11 are arranged in opposite directions; a striking block 51 is fixed to the end of the spring piece 5 away from the sampling frame 11; when sampling the rock core in the sampling tube 13, the sampling tube 13 can strike the two opposite striking blocks 51 on both sides of the limiting groove when tilted. The two striking blocks 51 strike the upper and lower areas of the sampling tube 13 respectively. During the process of striking the striking blocks 51, the spring piece 5 deforms and bends. The sampling tube 13 rotates back and forth and strikes the striking blocks 51 multiple times, which can help the rock core in the sampling tube 13 to fall out quickly.

[0040] A magnetic block 6 is fixed to the striking block 51; the sampling tube 13 can be magnetically attracted to the magnetic block 6; when the rock core inside the sampling tube 13 falls out, the magnetic blocks 6 on the two striking blocks 51 can magnetically attract the outer wall of the sampling tube 13. At this time, the force of the torsion spring is less than the magnetic attraction force of the two magnetic blocks 6, so that the two magnetic blocks 6 keep the angle of the sampling tube 13 tilted, thereby facilitating stable sampling. When the rock core is difficult to detach, additional force is applied to separate the two magnetic blocks 6 from the sampling tube 13, and the outer wall of the sampling tube 13 is repeatedly struck to accelerate the detachment of the rock core.

[0041] like Figure 1 , Figure 2 and Figure 6 As shown, a frame 7 is fixedly connected to the end face of the base 1; a lifting frame 71 is slidably connected to the frame 7 via a second hydraulic cylinder; a sliding seat 72 is slidably connected to the bottom end of the lifting frame 71 via an electric slider; a servo motor 73 is fixedly connected to the bottom end of the sliding seat 72; a connecting rod 74 is fixedly connected to the output end of the servo motor 73; when core sampling is performed deep into the rock strata, the electric slider drives the sliding seat 72 to slide above the sampling frame 11, and the second hydraulic cylinder drives the lifting frame 71 on the frame 7 to rise and fall, thus... The connecting rod 74 can be inserted into a sampling tube 13. Then, the drill bit 14 is fixedly connected to the sampling tube 13. The lifting frame 71, together with the sliding seat 72, pulls the connected sampling tube 13 and the drill bit 14 out of the limiting groove and moves them to the sampling point. The output end of the servo motor 73 drives the sampling tube 13 and the drill bit 14 to rotate in the forward direction to perform sampling. After sampling is completed, the lifting frame 71 drives the sliding seat 72 to send the sampling tube 13 to the sampling frame 11 for separation and storage, which serves the purpose of assembling and sampling the sampling tube 13.

[0042] Multiple locking blocks 8 are fixed to the outer wall of the connecting rod 74, and the cross-sectional shape of the locking blocks 8 is L-shaped. Multiple slots 81 are provided at the top of the sampling tube 13, and the shapes of the locking blocks 8 and slots 81 correspond to each other. When the connecting rod 74 and the sampling tube 13 are assembled, the sliding seat 72 moves the connecting rod 74 directly above the sampling tube 13, and the lifting frame 71 moves the multiple locking blocks 8 on the connecting rod 74 to be inserted into the multiple slots 81 of the sampling tube 13. Subsequently, the output end of the servo motor 73 drives the multiple locking blocks... 8 rotates forward, causing the L-shaped locking block 8 to engage in the slot 81, allowing the sampling tube 13 to be removed from the sampling frame 11 for core sampling; when storing the sample, the sampling tube 13 is inserted into the limiting slot of the sampling frame 11, and the output end of the servo motor 73 rotates in the reverse direction, causing multiple locking blocks 8 to separate from multiple slots 81, and the connecting rod 74 can be pulled out from the top of the sampling tube 13, thus achieving automated sampling. The shape-locking method between the locking block 8 and the slot 81 can improve the assembly efficiency of the sampling tube 13 and the equipment.

[0043] like Figures 1 to 5 As shown, a cylinder seat 9 is fixedly connected to the end face of the base 1; a scraper 91 is fixedly connected to the top of the cylinder seat 9; when the sampling tube 13 moves to the sampling point, the lifting frame 71 drives the sampling tube 13 into the cylinder seat 9, and the sampling tube 13 passes through the scraper 91. The scraper 91 can scrape against the outer wall of the sampling tube 13, reducing the adhesion of impurities on the outer wall of the sampling tube 13, thereby reducing the risk of cross-contamination between samples. After the impurities on the outer wall of the sampling tube 13 are scraped off, they can fall down the slope of the scraper 91.

[0044] A first guide cylinder 92 is fixedly connected to the top end of the sampling tube 13; a second guide cylinder 93 is fixedly connected to the scraper 91; when the connecting rod 74 is assembled with the sampling tube 13, the first guide cylinder 92 fixed at the top end of the sampling tube 13 can guide the connecting rod 74 to offset, so that the connecting rod 74 can be smoothly inserted into the top of the sampling tube 13; when the sampling tube 13 is inserted into the scraper 91, the second guide cylinder 93 is fixed on the scraper 91 to guide the drill bit 14 at the bottom of the sampling tube 13, reducing the occurrence of the sampling tube 13 being tilted and difficult to enter the tube seat 9 during sampling.

[0045] Working Process: During rock core sampling in rock strata exploration, the base 1 serves as the main support for the sampling device. The base 1 is placed on a flat area. The sampling tube 13, along with the drill bit 14, is installed on the sampling power equipment and penetrates deep into the rock strata for core sampling. After the core is extracted, the first hydraulic cylinder drives the sampling frame 11 to slide below the power equipment. The sampling tube 13 and drill bit 14 are inserted into a single limiting slot of the sampling frame 11. Two opposing baffles 12 block and limit the bottom of the single limiting slot. Then, the connection between the sampling tube 13 and the power equipment is disassembled. The power equipment moves to above another empty sampling tube 13 on the sampling frame 11. The empty sampling tube 13 is then connected to the power equipment to continue sampling. The equipment refers to the machinery that drives the sampling tube 13 to extract cores. Repeated sampling allows core samples from different areas to be stored on the sampling rack 11. The shielding frame 15 shields the multiple sampling tubes 13, reducing the entry of external impurities into them. This separates and stores core samples from multiple locations, reducing the risk of sample confusion and the probability of subsequent re-examination in exploration work, thus ensuring the accuracy of data from the exploration area. By setting up a sampling rack 11 capable of storing multiple samples, and storing them sequentially according to the detection order of the exploration area, the time spent searching for samples can be reduced, enabling streamlined operations and improving work efficiency. Utilizing the sampling rack 11 to store multiple samples in an orderly manner not only makes reasonable use of space but also reduces the working environment caused by disorderly stacking. In chaotic situations, electronic recording equipment can be added, making data management more standardized, scientific, and efficient. By pre-assembling the drill bit 14 with the sampling tube 13, sampling only requires moving the short-distance sampling device to directly assemble the power equipment with the sampling tube 13, reducing the time and effort of repeated assembly and assembly of the sampling tube 13 and drill bit 14, thus ensuring sample integrity. After the sampling tube 13 is inserted into the limiting slot of the sampling frame 11, it is simultaneously inserted into the middle of the sleeve plate 21, placing the sleeve plate 21 at the center of the sampling tube 13. After sampling is completed at the rock stratum exploration site, samples from multiple sampling tubes 13 are extracted and pushed sequentially from the end of the sampling tube 13 towards the opposite direction of the rotating shaft 2. When the sampling tube 13 is inserted, it is tilted as the shaft 2 rotates with the sleeve 21. The anti-slip protrusions prevent the sampling tube 13 from slipping off the sleeve 21. At this time, the torsion spring is stressed, and the sleeve 21 rotates in the slip-limiting groove. After the sampling tube 13 is tilted, the rock core inside can be taken out and stored, so that sampling can be carried out smoothly and the accuracy and integrity of the sample can be guaranteed. After the sample in the sampling tube 13 is taken out, the torsion spring can drive the sampling tube 13 to return to its original position. Multiple sampling tubes 13 are still inserted on the sampling frame 11, which serves to store multiple sampling tubes 13. The center end face of the sleeve 21 is rounded. When the sampling tube 13 is inserted into the limiting groove, it can be smoothly inserted into the middle of the sleeve 21 by relying on the rounded corners of the sleeve 21, which serves to guide the insertion of the sampling tube 13.

[0046] When the sample is located inside the sampling tube 13 and stored on the sampling frame 11, the base plate 3 is first placed at the bottom of the limiting groove. The rubber block 31 and its conical column stand upright on the end face of the base plate 3. After the sampling tube 13 and the drill bit 14 are inserted into the limiting groove, the conical column of the rubber block 31 fits into the hollow interior of the drill bit 14. The rubber block 31 can seal the bottom of the sampling tube 13, thereby reducing the possibility of the rock core slipping out of the sampling tube 13 and ensuring the integrity of the sampling. During sampling, the base plate 3 is pulled out of the limiting groove. The rubber block 31 deforms due to the rotation and compression of the sampling tube 13 and the drill bit 14 until the sampling tube 13 tilts. The operator holds the base plate 3 and pulls the rubber block 31 out of the drill bit 14 to collect the sample, which can reduce the risk of the rock core falling out prematurely during sampling. After sampling, the base plate 3 and the rubber block 31 are reinserted into the drill bit 14, and then the sample is collected. The rotation of the sampling tube 13 drives the base plate 3 and rubber block 31 to reset. The two limiting rods 32 are positioned in the two interception slots respectively, thus completing the reset of the sampling tube 13. After the sampling tube 13 is connected to the power equipment, the sampling tube 13 is lifted and sent for sampling. The two limiting rods 32 intercept the base plate 3 at the interception slot, so that the rubber block 31 on the base plate 3 can be separated from the drill bit 14, thus achieving the function of automatic separation of the rubber block 31 from the drill bit 14. When sampling the sample in the sampling tube 13, first grasp the two grooves 41 and pull out the slide plate 4, so that the base plate 3 and the bottom of the limiting slot form a rotation gap. Then, the slide plate 4, together with the elastic rope 42, pulls the base plate 3, so that the entire sampling tube 13 tilts with the rotation of the shaft 2. After the sampling is completed, first reset the sampling tube 13 and the base plate 3, and finally insert the slide plate 4 between the base plate 3 and the bottom of the limiting slot, which facilitates rapid sampling of the rock core.

[0047] When sampling the rock core inside the sampling tube 13, the tilted sampling tube 13 can strike two opposite striking blocks 51 on both sides of the limiting groove. The two striking blocks 51 strike the upper and lower areas of the sampling tube 13 respectively. During the impact of the striking blocks 51, the spring 5 deforms and bends. The repeated rotation of the sampling tube 13 and the repeated impact and vibration with the striking blocks 51 can help the rock core inside the sampling tube 13 to fall off quickly. When the rock core inside the sampling tube 13 falls off, the magnetic blocks 6 on the two striking blocks 51 can magnetically attract the outer wall of the sampling tube 13. At this time, the force of the torsion spring is less than the magnetic attraction force of the two magnetic blocks 6, so that the two magnetic blocks 6 keep the angle of the sampling tube 13 tilted, thereby facilitating stable sampling. If the rock core is difficult to detach, additional force is applied to separate the two magnetic blocks 6 from the sampling tube 13. Repeatedly striking the outer wall of the sampling tube 13 can accelerate the detachment of the rock core.

[0048] When core sampling is performed deep into the rock strata, the electric slider drives the sliding seat 72 to slide above the sampling frame 11. The second hydraulic cylinder drives the lifting frame 71 on the frame 7 to raise and lower, allowing the connecting rod 74 to be inserted into a sampling tube 13. Then, the drill bit 14 is fixedly connected to the sampling tube 13. The lifting frame 71, in conjunction with the sliding seat 72, pulls the connected sampling tube 13 and drill bit 14 out of the limiting groove and moves them to the sampling point. The output end of the servo motor 73 drives the sampling tube 13 and drill bit 14 to rotate forward for sampling. After sampling, the lifting frame 71 drives the sliding seat 72 to send the sampling tube 13 to the sampling frame 11 for separation and storage, which serves the purpose of assembling the sampling tube 13 for sampling. When assembling the connecting rod 74 and the sampling tube 13, the sliding seat 72... The connecting rod 74 is positioned directly above the sampling tube 13. The lifting frame 71 then drives multiple locking blocks 8 on the connecting rod 74 to be inserted into multiple slots 81 of the sampling tube 13. Subsequently, the output end of the servo motor 73 drives the multiple locking blocks 8 to rotate forward, so that the L-shaped locking blocks 8 are locked into the slots 81. The sampling tube 13 can then be removed from the sampling frame 11 for core sampling. When storing the sample, the sampling tube 13 is inserted into the limiting groove of the sampling frame 11, and the output end of the servo motor 73 rotates in the opposite direction, so that the multiple locking blocks 8 are separated from the multiple slots 81. The connecting rod 74 can then be pulled out from the top of the sampling tube 13. This achieves the function of automated sampling. By using the locking method of the locking blocks 8 and the slots 81, the assembly efficiency of the sampling tube 13 and the equipment can be improved.

[0049] After the sampling tube 13 moves to the sampling point, the lifting frame 71 drives the sampling tube 13 into the cylinder seat 9, and the sampling tube 13 passes through the scraper 91. The scraper 91 can scrape against the outer wall of the sampling tube 13, reducing the adhesion of impurities on the outer wall of the sampling tube 13, thereby reducing the risk of cross-contamination between samples. After the impurities on the outer wall of the sampling tube 13 are scraped off, they can fall down the slope of the scraper 91. When the connecting rod 74 is assembled with the sampling tube 13, the first guide cylinder 92 is fixed at the top of the sampling tube 13 and can offset and guide the connecting rod 74, so that the connecting rod 74 can be smoothly inserted into the top of the sampling tube 13. When the sampling tube 13 is inserted into the scraper 91, the second guide cylinder 93 is fixed on the scraper 91 and guides the drill bit 14 at the bottom of the sampling tube 13, reducing the possibility of the sampling tube 13 being tilted and unable to enter the cylinder seat 9 during sampling.

[0050] The foregoing has shown and described 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. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for rock strata exploration engineering, characterized in that: The device includes a base; a sampling frame is slidably connected to the end face of the base via a hydraulic cylinder, and the sampling frame has multiple limiting grooves; two baffles are fixedly connected to each other in the limiting grooves of the sampling frame; a sampling tube is provided in each of the multiple limiting grooves of the sampling frame; a drill bit is fixedly connected to the bottom end of the sampling tube; and a shielding frame is fixedly connected to the base. The sampling rack has a limited sliding groove on its inner wall, and the limited sliding groove is located in the middle of the limiting groove; the inner wall of the limited sliding groove of the sampling rack is rotatably connected to a rotating shaft by a torsion spring; a sleeve plate is fixed to the outer wall of the rotating shaft, and the inner wall of the sleeve plate is provided with anti-slip protrusions. Multiple spring clips are fixed to both sides of the sampling frame, and the multiple spring clips on both sides of the sampling frame are arranged in opposite directions; a striking block is fixed to the end of the spring clip away from the sampling frame. A magnetic block is fixed to the striking block; the sampling tube is magnetically attracted to the magnetic block.

2. The sampling device for rock strata exploration engineering according to claim 1, characterized in that: The sampling rack has an internal base plate located at the bottom of the limiting groove. A rubber block is fixed to the end face of the base plate, and a conical column is provided on the end face of the rubber block. Two interception grooves are opened opposite each other on the outer wall of the rubber block. Two limiting rods are fixed to the inner wall of the limiting groove of the sampling rack, and the limiting rods correspond to the interception grooves.

3. A sampling device for rock strata exploration engineering according to claim 2, characterized in that: The inner wall of the sampling frame is slidably connected to a sliding plate located at the bottom of the limiting groove; two grooves are provided on the sliding plate; an elastic rope is fixedly connected to the sliding plate, and the end of the elastic rope away from the sliding plate is fixedly connected to the outer wall of the base plate.

4. A sampling device for rock strata exploration engineering according to claim 1, characterized in that: A frame is fixedly connected to the end face of the base; a lifting frame is slidably connected to the frame via a second hydraulic cylinder; a sliding seat is slidably connected to the bottom end of the lifting frame via an electric slider; a servo motor is fixedly connected to the bottom end of the sliding seat; and a connecting rod is fixedly connected to the output end of the servo motor.

5. A sampling device for rock strata exploration engineering according to claim 4, characterized in that: The outer wall of the connecting rod is fixed with multiple locking blocks, and the cross-sectional shape of the locking blocks is L-shaped; the top of the sampling tube is provided with multiple slots, and the shapes of the locking blocks and slots correspond to each other.

6. A sampling device for rock strata exploration engineering according to claim 1, characterized in that: A cylindrical base is fixedly connected to the end face of the machine base; a scraper is fixedly connected to the top end of the cylindrical base.

7. A sampling device for rock strata exploration engineering according to claim 6, characterized in that: The top end of the sampling tube is fixedly connected to a first guide tube; the scraper is fixedly connected to a second guide tube.

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