A drilling sampling device with sample anti-falling function

Abstract

The present application relates to the technical field of soil layer drilling, and particularly relates to a drilling sampling device with a sample anti-falling function. The drilling sampling device comprises a drilling sampling machine and a sampling tube. The sampling tube is used for docking with the interface of the drilling sampling machine. A sleeve is installed on the sampling tube. Two annular partitions are installed on the inner side of the sleeve. An iron ring is slidably arranged on the outer side of one of the annular partitions. The present application realizes the automatic lifting function of the drilling sampling machine by arranging a supporting frame, a guide rail frame and a lifting mechanism. The problem that an operator needs to hold the traditional handheld drilling equipment for a long time is avoided. Not only the work burden of the operator is reduced, but also the risk of hand and upper limb injury caused by equipment vibration is effectively reduced. The safety and comfort of operation are improved. In addition, the iron ring, the shielding cloth, the rubber ring and the blocking ring are cooperated to automatically block the sample by using the shielding cloth and the baffle when the sampling tube is pulled out of the soil layer, so that the sample is effectively prevented from falling.

Description

Technical Field

[0001] This invention relates to the technical field of soil drilling, and more particularly to a drilling and sampling device with a sample anti-drop function. Background Technology

[0002] Drilling sampling equipment is a specialized device used to collect samples of soil, rock, or other geological materials from underground. It is widely used in fields such as geological exploration, environmental monitoring, mineral resource surveys, and construction engineering surveys. It is an important tool for obtaining stratigraphic information, conducting geological analysis, and assessing underground conditions.

[0003] Traditional drilling sampling devices are mostly handheld, requiring operators to manually support them during operation to ensure the sampling tube is successfully driven into the formation for sampling. However, this method has several drawbacks: First, the equipment generates significant vibrations during drilling, and prolonged handheld operation not only results in high labor intensity but also easily causes vibration-related injuries to the hands and upper limbs. Long-term use may lead to occupational diseases such as "vibration-induced white finger," affecting the operator's health and work efficiency. Second, during the sampling process and when pulling the sampling tube out of the formation, the lack of an effective anti-drop structure allows the sample inside the tube to easily slip from the bottom, leading to sample loss and affecting the accuracy of subsequent analysis. Summary of the Invention

[0004] In view of this, the present invention provides a drilling sampling device with a sample anti-drop function, which can solve the problems of traditional drilling sampling devices that are mostly handheld, which not only result in high labor intensity for operators, but also easily cause vibration damage to the hands and upper limbs. In addition, the sampling tube in traditional drilling sampling devices is prone to slipping from the bottom when it is pulled out of the formation.

[0005] The technical solution of the present invention is as follows: a drilling sampling device with sample anti-drop function, comprising a drilling sampling machine and a sampling tube, the sampling tube being used to dock with the interface of the drilling sampling machine, a sleeve being installed on the sampling tube, and two annular partitions being installed on the inner side of the sleeve, one of the annular partitions having an iron ring slidably arranged on the outer side, a shielding cloth being connected to the iron ring, a rubber ring being connected to the end of the shielding cloth, a baffle and an adsorption mechanism being provided on the shielding cloth, the adsorption mechanism being used to limit the baffle, the other annular partition having a blocking ring slidably arranged on the outer side, a first spring being connected between the blocking ring and the sleeve, movable blocks being symmetrically arranged on the drilling sampling machine, a guide rail frame being slidably arranged between the two movable blocks, a lifting mechanism being provided on the guide rail frame for driving the drilling sampling machine to rise and fall, a first gear being symmetrically arranged on the guide rail frame, a support frame being rotatably arranged on the first gear, a fixing mechanism, an adjusting mechanism and a locking mechanism being installed on the support frame, the fixing mechanism being used to fix the support frame, and the adjusting mechanism and the locking mechanism being used to adjust and lock the orientation of the drilling sampling machine, respectively.

[0006] As a preferred embodiment of the present invention, the adsorption mechanism includes a first magnetic plate and a second magnetic plate. The first magnetic plate is connected to the shielding cloth, and the second magnetic plate is connected to the baffle. The second magnetic plate is used to adsorb onto the first magnetic plate.

[0007] As a preferred embodiment of the present invention, the lifting mechanism includes a second spring, a first motor, a winding wheel, a guide wheel, and a connecting rope. The second spring connects the movable block and the guide rail frame. The first motor is symmetrically mounted on the drilling and sampling machine. The winding wheel is connected to the output shaft of the first motor. The guide wheel is symmetrically rotatably mounted on the guide rail frame. One end of the connecting rope is connected to the winding wheel, and the other end of the connecting rope passes around the guide wheel and connects to the movable block.

[0008] As a preferred embodiment of the present invention, the fixing mechanism includes a first electric push rod and a drilling column. The first electric push rod is mounted on a support frame, and the drilling column is connected to the telescopic rod of the first electric push rod. The drilling column is used to insert into the stratum.

[0009] As a preferred embodiment of the present invention, the adjustment mechanism includes a second motor and a second gear. The second motor is mounted on the support frame, and the output shaft of the second motor is connected to the second gear, which meshes with the first gear.

[0010] As a preferred embodiment of the present invention, the locking mechanism includes a second electric push rod and a rack. The second electric push rod is mounted on the support frame, and a rack is connected to the telescopic rod of the second electric push rod. The rack is used to restrict the rotation of the first gear.

[0011] As a preferred embodiment of the present invention, it further includes a reinforcement mechanism, which includes a third electric push rod, an insert rod, a slider, and a guide plate. The third electric push rod is provided inside the drilling column, and the insert rod is slidably provided inside the drilling column. The slider is connected to the insert rod, and the guide plate is connected to the telescopic rod of the third electric push rod. The slider is slidably connected to the guide plate.

[0012] As a preferred embodiment of the present invention, it also includes a handle, which is installed on the guide rail frame and is used to lift the guide rail frame.

[0013] The beneficial effects are as follows: 1. By setting up a support frame, guide rail frame and lifting mechanism, the present invention realizes the automatic lifting function of the drilling sampling machine, avoiding the problem that traditional handheld drilling equipment requires operators to support it for a long time. This not only reduces the workload of operators, but also effectively reduces the risk of hand and upper limb injuries caused by equipment vibration, and improves the safety and comfort of operation. Moreover, through the cooperation of iron rings, shielding cloth, rubber rings and blocking rings, the shielding cloth and baffle can be used to block the sample when the sampling tube is pulled out of the soil layer, effectively preventing the sample from slipping.

[0014] 2. Through the coordinated action of the adjustment mechanism and the locking mechanism, this invention enables flexible adjustment and precise locking of the orientation of the drilling sampler, allowing the device to be adjusted to the optimal drilling angle according to different geological conditions and sampling requirements, thereby improving the applicability and work efficiency of the equipment.

[0015] 3. The fixing mechanism of the present invention can fix the support frame to the ground to prevent the equipment from shifting or shaking during the drilling process. In addition, the reinforcement mechanism can further enhance the grip of the drilling column and significantly improve the stability of the entire device, thereby ensuring the smoothness of the drilling process and the accuracy of sampling. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a structural separation diagram of the drilling sampling machine, sampling tube, and casing of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the annular partition, iron ring, and blocking ring of the present invention.

[0019] Figure 4 This is a structural separation diagram of the annular partition, iron ring, and blocking ring of the present invention.

[0020] Figure 5 This is a structural separation diagram of the rubber ring, baffle, and blocking ring of the present invention.

[0021] Figure 6This is a three-dimensional structural diagram of the movable block, guide rail frame, and handle of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the lifting mechanism of the present invention.

[0023] Figure 8 This is a three-dimensional structural diagram of the fixing mechanism of the present invention.

[0024] Figure 9 This is a three-dimensional structural diagram of the adjusting mechanism and locking mechanism of the present invention.

[0025] Figure 10 This is a three-dimensional structural diagram of the reinforcement mechanism of the present invention.

[0026] The markings in the diagram are as follows: 1-Drilling sampler, 2-Sampling tube, 3-Casing, 4-Annular partition, 5-Iron ring, 6-Shielding cloth, 7-Rubber ring, 8-Baffle, 901-First magnetic plate, 902-Second magnetic plate, 10-Blocking ring, 11-First spring, 12-Moving block, 13-Guide rail frame, 1401-Second spring, 1402-First motor, 1403-Winding wheel, 1404-Guide wheel, 1405-Connecting rope, 15-First gear, 16-Support frame, 1701-First electric push rod, 1702-Drilling column, 1801-Second motor, 1802-Second gear, 1901-Second electric push rod, 1902-Rack, 20-Third electric push rod, 21-Insertion rod, 22-Slider, 23-Guide rail plate, 24-Handle. Detailed Implementation

[0027] Example: A drilling sampling device with sample drop prevention function, see below. Figures 1-9 As shown, it includes a drilling sampler 1 and a sampling tube 2; the bottom of the drilling sampler 1 is provided with an interface that connects with the sampling tube 2. The sampling tube 2 consists of two half-pipes and a connector. The two half-pipes are joined together to form a tube body. The top of the tube body is threaded with a connector, which is used to connect with the interface at the bottom of the drilling sampler 1. The sampling tube 2 is used to insert into the soil layer for sampling.

[0028] It also includes a sleeve 3, annular partitions 4, iron rings 5, shielding cloth 6, rubber rings 7, baffles 8, adsorption mechanism, blocking ring 10, first spring 11, movable block 12, guide rail frame 13, lifting mechanism, first gear 15, support frame 16, fixing mechanism, adjusting mechanism, and locking mechanism; the bottom end of the sampling tube 2 is threaded with a sleeve 3; two annular partitions 4 are installed inside the sleeve 3, the two annular partitions 4 are distributed vertically, and the two annular partitions 4 are separated by a certain distance; an iron ring 5 is slidably arranged on the outer side of the upper annular partition 4, the iron ring 5 is located between the inner side of the sleeve 3 and the outer side of the upper annular partition 4. The bottom of the iron ring 5 is connected to a shielding cloth 6, which is annular and made of iron, so that the operator can use a magnetic ring to attract the iron ring 5 to the outside of the sleeve 3 for resetting. A rubber ring 7 is connected to the bottom of the shielding cloth 6. A baffle 8, made of rubber, is provided on the lower right side of the shielding cloth 6. An adsorption mechanism is provided on the shielding cloth 6 to limit the position of the baffle 8. A blocking ring 10 is slidably provided on the outside of the lower annular partition 4. The blocking ring 10 is located between the inside of the sleeve 3 and the outside of the lower annular partition 4. The blocking ring 10 is used to block the gap between the two annular partitions 4. The upper inner side of ring 10 is provided with an annular plate, which is used to contact the sample inside the casing 3. When the operator pulls the sampling tube 2 and casing 3 out of the soil layer, the sample inside the casing 3 will press against the annular plate, causing the annular plate to be subjected to sample pressure, which prevents the blocking ring 10 from rising with the casing 3. Then, as the annular partition 4 moves upward with the casing 3, the blocking ring 10 will gradually loosen the gap between the two annular partitions 4. The blocking ring 10 is made of iron so that the operator can use a magnetic ring to attract the blocking ring 10 on the outside of the casing 3 for movement. The bottom of the blocking ring 10 is connected to the bottom of the inner casing 3 by a first Spring 11; movable blocks 12 are symmetrically arranged on the left and right sides of the drilling and sampling machine 1; guide rail frame 13 is slidably arranged between the two movable blocks 12; a lifting mechanism is provided on the guide rail frame 13, which is used to drive the drilling and sampling machine 1 to move up and down; first gears 15 are symmetrically arranged on the lower part of the guide rail frame 13; support frames 16 are rotatably arranged on both first gears 15; a fixing mechanism, an adjusting mechanism and a locking mechanism are installed on the support frame 16, the fixing mechanism is used to fix the support frame 16, the adjusting mechanism is used to adjust the orientation of the drilling and sampling machine 1, and the locking mechanism is used to lock the orientation of the drilling and sampling machine 1.

[0029] See Figures 4-5 As shown, the adsorption mechanism includes a first magnetic plate 901 and a second magnetic plate 902; the first magnetic plate 901 is connected to the lower left side of the shielding cloth 6; the second magnetic plate 902 is connected to the lower side of the baffle 8, and the second magnetic plate 902 is used to adsorb onto the first magnetic plate 901, thereby limiting the position of the baffle 8.

[0030] See Figure 6 and Figure 7As shown, the lifting mechanism includes a second spring 1401, a first motor 1402, a winding wheel 1403, a guide wheel 1404, and a connecting rope 1405; the second spring 1401 is connected between the top of the movable block 12 and the top of the inner side of the guide frame 13; the first motors 1402 are symmetrically mounted on the top of the drilling sampler 1; the output shafts of the two first motors 1402 are each connected to a winding wheel 1403, and the two winding wheels 1403 are rotatably connected to the top of the drilling sampler 1; the four guide wheels 1404 are symmetrically rotatably mounted on the top of the inner side of the guide frame 13; the connecting rope 1405 is wound on the two winding wheels 1403, one end of the connecting rope 1405 is connected to the winding wheel 1403, and the other end of the connecting rope 1405 passes over the two guide wheels 1404 on the same side and is connected to the top of the movable block 12.

[0031] See Figure 8 and Figure 9 As shown, the fixing mechanism includes a first electric push rod 1701 and a drilling column 1702; two first electric push rods 1701 are installed on the lower side of each of the two support frames 16; the drilling column 1702 is connected to the telescopic rod of the first electric push rod 1701, and the bottom end of the drilling column 1702 is in the shape of a cone so that the drilling column 1702 can be inserted into the stratum, thereby fixing the support frame 16 to the ground.

[0032] See Figure 9 As shown, the adjustment mechanism includes a second motor 1801 and a second gear 1802; the second motor 1801 is mounted on the upper rear side of the two support frames 16; the output shafts of the two second motors 1801 are each connected to a second gear 1802, and the two second gears 1802 mesh with the two first gears 15 respectively.

[0033] See Figure 9 As shown, the locking mechanism includes a second electric push rod 1901 and a rack 1902; the second electric push rod 1901 is installed on the side of each of the two support frames 16 that is far apart from each other; the rack 1902 is connected to the telescopic rod of the second electric push rod 1901, and the rack 1902 is slidably connected to the support frame 16. The rack 1902 is used to restrict the rotation of the first gear 15.

[0034] In the initial state, the blocking ring 10 blocks the gap between the two annular partitions 4, causing the rubber ring 7 to be in an expanded deformed state on the outside of the blocking ring 10 (e.g., Figure 3 (as shown); and the movable block 12 is pulled by the connecting rope 1405, causing the second spring 1401 to be in a compressed state; and the rack 1902 contacts the first gear 15, so that the rack 1902 locks the first gear 15;

[0035] In use, first, the guide rail frame 13 is carried to the sampling position. Then, the guide rail frame 13 is lowered so that the bottom of the support frame 16 contacts the ground, and the sampling position is below the drilling sampler 1. Next, the drilling column 1702 is driven downward by the first electric push rod 1701, so that the drilling column 1702 is inserted into the soil layer, thereby limiting the support frame 16 and fixing it to the ground. Then, the half-pipe and connector forming the sampling tube 2 are assembled. Then, the sleeve 3 is screwed into the bottom end of the sampling tube 2. Then, the sleeve 3 is placed at the sampling position, and the orientation of the sleeve 3 and the sampling tube 2 is adjusted as needed so that the sleeve 3 and the sampling tube 2 can be inserted into the soil layer at the required angle. Then, the rack 1902 is driven downward by the second electric push rod 1901. The rack 1902 is disengaged from the first gear 15, thus releasing the lock on the first gear 15. Then, the second motor 1801 drives the second gear 1802 to rotate or reverse, causing the second gear 1802 to drive the first gear 15, guide rail frame 13, movable block 12, and drilling sampler 1 to rotate or reverse, thereby adjusting the orientation of the drilling sampler 1 until its interface faces the sampling tube 2. After adjustment, the second electric push rod 1901 drives the rack 1902 upwards to reset, causing the rack 1902 to mesh with the first gear 15, thus locking the first gear 15. This locks the orientation of the guide rail frame 13, movable block 12, and drilling sampler 1. Next, the first motor 1402 drives the winding wheel. Rotation of 1403 causes the winding wheel 1403 to unwind the connecting rope 1405, thus loosening the connecting rope 1405. As the connecting rope 1405 loosens, it gradually loosens the movable block 12. At this time, under the elastic force of the second spring 1401, the second spring 1401 will drive the movable block 12 and the drilling and sampling machine 1 to move downwards, causing the drilling and sampling machine 1 to gradually approach the sampling tube 2. After the interface of the drilling and sampling machine 1 is connected to the joint of the sampling tube 2, the drilling and sampling machine 1 will press the sampling tube 2 firmly onto the ground. Then, the casing 3 is released, and the drilling and sampling machine 1 is restarted, causing the drilling and sampling machine 1 to gradually press the sampling tube 2 and casing 3 into the soil layer through vibration, thereby allowing the sampling tube 2 and casing 3 to be gradually inserted into the soil layer for sampling. The sampling continues until sampling tube 2 and casing 3 are inserted into the soil layer to complete sampling. Then, the drilling and sampling machine 1 is shut down, and the first motor 1402 drives the winding wheel 1403 to reverse, causing the winding wheel 1403 to wind up the connecting rope 1405, thus straightening the connecting rope 1405. Once straightened, the connecting rope 1405 pulls the movable block 12 and the drilling and sampling machine 1 upwards to reset. The second spring 1401 is compressed, disconnecting the interface of the drilling and sampling machine 1 from the connector of sampling tube 2. The operator then removes sampling tube 2 and casing 3 from the soil layer, causing sampling tube 2, casing 3, annular partition 4, first spring 11, and blocking ring 10 to move upwards. When the top of the ring plate inside the blocking ring 10 contacts the sample inside the casing 3...The sample inside the sleeve 3 presses against the annular plate inside the blocking ring 10, stopping the blocking ring 10 from moving upwards. Then, as the sampling tube 2, sleeve 3, annular partition 4, and first spring 11 continue to move upwards, the first spring 11 compresses, and the blocking ring 10 gradually releases the gap between the two annular partitions 4. Once the gap between the two annular partitions 4 is released, the rubber ring 7 contracts and recovers through the gap between the two annular partitions 4. When the rubber ring 7 contracts to contact the sample inside the sleeve 3:

[0036] If the sample is loose, the rubber ring 7 will pass through the sample, causing the rubber ring 7 to pull the shielding cloth 6 to unfold through the gap between the two annular partitions 4. This allows the shielding cloth 6 to form a barrier inside the sleeve 3, thereby blocking the sample in the sampling tube 2 and the sleeve 3 (using the shielding cloth 6 allows it to block only solid particles in the sample, while liquids can flow out through it). Furthermore, the shielding cloth 6 will cause the first magnetic plate 901 on it to move closer to the baffle 8. As the first magnetic plate 901 and the second magnetic plate 902 on the baffle 8 gradually approach each other, the first magnetic plate 901 and the second magnetic plate 902 will attract each other due to magnetic force until the second magnetic plate 902 is attracted to the first magnetic plate 901. Thus, the baffle 8 is limited by magnetic force and the baffle 8 blocks the area in the middle of the rubber ring 7. Thus, the baffle 8 and the shielding cloth 6 together form a blockage inside the sleeve 3. In this way, the baffle 8 and the shielding cloth 6 can be used to block the sample in the sampling tube 2 and the sleeve 3, preventing the sample in the sampling tube 2 and the sleeve 3 from falling out.

[0037] If the sample is relatively hard or intact, the rubber ring 7 will tighten on the outer wall of the sample, thereby tightening the sample and limiting its position. The sample will also block the other samples in the sampling tube 2 and sleeve 3, preventing the samples in the sampling tube 2 and sleeve 3 from falling out.

[0038] Then, the sampling tube 2, sleeve 3, annular partition 4, and first spring 11 move upwards. The first spring 11 will drive the blocking ring 10 to move upwards together until the sampling tube 2 and sleeve 3 are completely removed from the soil layer. Then, the sleeve 3 is twisted off from the sampling tube 2, and the sample inside the sleeve 3 is taken out. Next, the sampling tube 2 is disassembled, and the sample inside is taken out. In this way, the sample can be removed from the soil layer. Then, a magnetic ring is used to attract the blocking ring 10 and move it downwards, thereby releasing the gap between the two annular partitions 4 to the maximum. Then, another magnetic ring is used to attract the iron ring 5 from the outside of the sleeve 3 and move it upwards to reset it. This allows the iron ring 5 to retract the shielding cloth 6 from the gap between the two annular partitions 4, thereby causing the shielding cloth 6 to pull the rubber ring 7 back to the open state, until the rubber ring 7 is removed from the gap between the two annular partitions 4. When the shielding cloth 6 retracts from the gap between the two annular partitions 4, the shielding cloth 6 will cause the first magnetic plate 901 on it to move away from the baffle 8 and reset, so that the first magnetic plate 901 separates from the second magnetic plate 902 on the baffle 8. Then, the magnetic ring of the adsorption blocking ring 10 is removed, so that the first spring 11 returns to its original state. The first spring 11 drives the blocking ring 10 to move upward and reset, so that the blocking ring 10 blocks the gap between the two annular partitions 4 again. Then, the magnetic ring of the adsorption iron ring 5 can be removed. In this way, the iron ring 5, the shielding cloth 6 and the rubber ring 7 can be reset for the next use. Then, the drilling column 1702 is driven upward and reset by the first electric push rod 1701, so that the drilling column 1702 leaves the soil layer, thereby releasing the limit on the support frame 16. Finally, the guide rail frame 13 is carried away.

[0039] See Figure 10 As shown, it also includes a reinforcement mechanism, which includes a third electric push rod 20, a plug rod 21, a slider 22, and a guide rail plate 23; the third electric push rod 20 is installed at the top inside the drilling column 1702; two plug rods 21 are slidably installed on the lower side inside the drilling column 1702, and the two plug rods 21 are inclined; the upper end of the plug rod 21 is connected to the slider 22; the guide rail plate 23 is connected to the telescopic rod of the third electric push rod 20, and the slider 22 is slidably connected to the guide rail plate 23.

[0040] By setting up a reinforcement mechanism, after the drilling column 1702 is inserted into the soil, the guide rail plate 23 can be driven downward by the third electric push rod 20, so that the guide rail plate 23 applies pressure to the slider 22, thereby causing the slider 22 to squeeze the insertion rod 21 out of the drilling column 1702, and then insert the insertion rod 21 into the soil. This improves the grip of the drilling column 1702 by inserting the insertion rod 21 into the soil, thereby further improving the stability of the support frame 16. When it is necessary to remove the drilling column 1702 from the soil, the guide rail plate 23 is first driven upward by the third electric push rod 20 to reset, so that the guide rail plate 23 applies a pulling force to the slider 22, thereby causing the slider 22 to pull the insertion rod 21 back into the drilling column 1702, and then the insertion rod 21 is removed from the soil. After that, the drilling column 1702 can be removed from the soil.

[0041] See Figure 6 As shown, it also includes a handle 24; the top of the guide rail frame 13 is equipped with a handle 24, which is used to lift the guide rail frame 13.

[0042] By setting handle 24, the operator can move the guide rail frame 13 by lifting handle 24, which makes it convenient for the operator to carry the guide rail frame 13 for movement.

Claims

1. A drilling sampling device with sample anti-drop function, comprising a drilling sampling machine (1) and a sampling tube (2), wherein the sampling tube (2) is used to dock with the interface of the drilling sampling machine (1), characterized in that, A sleeve (3) is installed on the sampling tube (2). Two annular baffles (4) are installed inside the sleeve (3). An iron ring (5) is slidably arranged on the outside of one of the annular baffles (4). A shielding cloth (6) is connected to the iron ring (5). A rubber ring (7) is connected to the end of the shielding cloth (6). A baffle (8) and an adsorption mechanism are provided on the shielding cloth (6). The adsorption mechanism is used to limit the baffle (8). A blocking ring (10) is slidably arranged on the outside of the other annular baffle (4). A first spring (11) is connected between the blocking ring (10) and the sleeve (3). The drilling sampling machine (1) The upper part is symmetrically provided with movable blocks (12), and a guide frame (13) is slidably provided between the two movable blocks (12). The guide frame (13) is provided with a lifting mechanism for driving the drilling sampler (1) to move up and down. The guide frame (13) is symmetrically provided with a first gear (15), and a support frame (16) is rotatably provided on the first gear (15). The support frame (16) is equipped with a fixing mechanism, an adjusting mechanism and a locking mechanism. The fixing mechanism is used to fix the support frame (16), and the adjusting mechanism and the locking mechanism are used to adjust and lock the orientation of the drilling sampler (1) respectively.

2. The drilling sampling device with sample anti-drop function as described in claim 1, characterized in that, The adsorption mechanism includes a first magnetic plate (901) and a second magnetic plate (902). The first magnetic plate (901) is connected to the shielding cloth (6), and the second magnetic plate (902) is connected to the baffle (8). The second magnetic plate (902) is used to adsorb onto the first magnetic plate (901).

3. The drilling sampling device with sample anti-drop function as described in claim 1, characterized in that, The lifting mechanism includes a second spring (1401), a first motor (1402), a winding wheel (1403), a guide wheel (1404), and a connecting rope (1405). The second spring (1401) is connected between the movable block (12) and the guide rail frame (13). The first motor (1402) is symmetrically installed on the drilling sampler (1). The winding wheel (1403) is connected to the output shaft of the first motor (1402). The guide wheel (1404) is symmetrically rotated on the guide rail frame (13). One end of the connecting rope (1405) is connected to the winding wheel (1403), and the other end of the connecting rope (1405) passes around the guide wheel (1404) and is connected to the movable block (12).

4. A drilling sampling device with sample anti-drop function as described in claim 1, characterized in that, The fixing mechanism includes a first electric push rod (1701) and a drilling rod (1702). The first electric push rod (1701) is mounted on the support frame (16). The drilling rod (1702) is connected to the telescopic rod of the first electric push rod (1701). The drilling rod (1702) is used to be inserted into the formation.

5. A drilling sampling device with sample anti-drop function as described in claim 1, characterized in that, The adjustment mechanism includes a second motor (1801) and a second gear (1802). The second motor (1801) is mounted on the support frame (16). The output shaft of the second motor (1801) is connected to the second gear (1802). The second gear (1802) meshes with the first gear (15).

6. A drilling sampling device with sample anti-drop function as described in claim 1, characterized in that, The locking mechanism includes a second electric push rod (1901) and a rack (1902). The second electric push rod (1901) is mounted on the support frame (16). The rack (1902) is connected to the telescopic rod of the second electric push rod (1901). The rack (1902) is used to restrict the rotation of the first gear (15).

7. A drilling sampling device with sample anti-drop function as described in claim 4, characterized in that, It also includes a reinforcement mechanism, which includes a third electric push rod (20), a plug rod (21), a slider (22) and a guide plate (23). The third electric push rod (20) is installed inside the drilling column (1702), the plug rod (21) is slidably installed inside the drilling column (1702), the slider (22) is connected to the plug rod (21), the guide plate (23) is connected to the telescopic rod of the third electric push rod (20), and the slider (22) is slidably connected to the guide plate (23).

8. A drilling sampling device with sample anti-drop function as described in claim 1, characterized in that, It also includes a handle (24), which is installed on the guide rail frame (13) and is used to lift the guide rail frame (13).

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