A sampling device and sampling method for geological exploration

Abstract

The invention relates to the technical field of geological exploration sampling, and discloses a sampling device and a sampling method for geological exploration, comprising a supporting component, a drilling component, a discharging component and a sampling component. The supporting component drives the drilling component to move, and the drilling component realizes the drilling work. When the spiral cleaning knife in the discharging component rotates, it not only has the function of crushing the soil to prevent the soil from agglomerating, but also can use the characteristics of its own spiral to squeeze the soil to the feed inlet, and as the amount of soil increases, the squeezing force becomes stronger, thereby ensuring that the soil subsequently turned up by the spiral drilling knife can be blocked and transported to a storage tank, having a benign drainage effect on the soil, providing convenience for the sampling of the sampling component, preventing the soil from accumulating and covering the sampling component so that the sampling component collects non-genuine soil samples during sampling, and fundamentally solving the problem of soil collection errors.

Description

Technical Field

[0001] The invention relates to the technical field of geological exploration sampling, and in particular to a sampling device and a sampling method for geological exploration. Background Art

[0002] In geological survey work, it is generally necessary to use a drilling machine to drill the land, and then take samples of the soil below the ground for testing, which requires the use of a sampling device.

[0003] In a sampling device and sampling method for geological exploration with application number CN202310192838.4, soil samples of different depths can be obtained as needed. Multiple loading tubes are isolated from each other and do not touch the soil, ensuring the accuracy of subsequent detection. After soil sampling, the pushing component is extended to push the loading tube into the storage tank for timely preservation; in a sampling device and sampling method for geological and mineral exploration with application number CN202310054685.7, the sampling mechanism is arranged inside the drill barrel and can sample through the sampling slot; the cleaning mechanism is arranged on the outer wall of the rotating drum and is used to seal and open multiple sampling slots. Through the cooperation of the mobile vehicle, the drill barrel and the sampling mechanism, multiple sampling can be carried out at different depths, and the samples can be transported by the conveying mechanism, so that continuous sampling can be carried out.

[0004] Although the above patent can achieve the purpose of sampling at different depths and ensure the independence of sampling, in the actual drilling process, when the drill bit is smaller than the diameter of the sampling tube, the drilling work cannot be realized. When the diameter of the drill bit and the sampling tube are the same, the sampling tube cannot continue to go deeper due to the squeezing effect of the soil and becomes stuck. Therefore, during the drilling work, the diameter of the drill bit must be larger than the diameter of the sampling tube. However, when the drill bit is working, the soil will inevitably be flipped up and accumulated on the outer wall of the sampling tube. However, it will be flipped up from the bottom to the top. The soil is not discharged in time, which results in the sampling mechanism actually sampling the turned-up soil when it extends out for sampling, rather than the real soil sample at that depth. This leads to sampling errors and seriously affects the sampling accuracy. In addition, during the rotary drilling process of the drill bit, when the soil is turned up from bottom to top, as the depth increases, the turned-up soil accumulates and must be a state of mixing of soils at different depths. This will further increase the sampling error rate. Therefore, in actual use, it is difficult to accurately obtain soil samples at each depth.

[0005] Therefore, the present invention solves the above-mentioned problems through a sampling device and a sampling method for geological exploration. Summary of the invention

[0006] The object of the present invention is to provide a sampling device and a sampling method for geological exploration to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a sampling device for geological exploration, comprising:

[0008] A support assembly, wherein the support assembly provides stable support for the entire device;

[0009] A drilling assembly, the drilling assembly being mounted on the support assembly and being driven by the support assembly to move in a height direction;

[0010] A discharge assembly is mounted on the drilling assembly, and the discharge assembly is used to first block the soil during the drilling process, and then collect the soil in real time and quickly discharge it from the drilling assembly, so as to avoid the influence of the soil during the drilling work on the actual soil sampling;

[0011] The sampling components are arranged in multiple groups and are evenly arranged inside the drilling component. The sampling components perform sampling operations on soil at different depths after the discharge component blocks and collects the soil.

[0012] Preferably, the support assembly includes two groups of bases arranged in parallel, and the top of the two groups of bases are integrally formed with a fixed frame, two groups of hydraulic telescopic rods are fixed symmetrically inside the fixed frame, a slide is fixed to the output end of each group of the hydraulic telescopic rods, an installation frame is fixed between the two groups of slides, and a guide seat for guiding and limiting the drilling assembly is fixed on the fixed frame.

[0013] Preferably, the drilling assembly includes a driving motor fixed inside the mounting frame, a protective box is fixedly installed on the output end of the driving motor, a drilling barrel is fixed to the bottom of the protective box, the drilling barrel is sleeved and installed inside the guide seat, a drilling head is integrally provided at the bottom of the drilling barrel, a spiral drilling knife is integrally provided on the outer side wall of the drilling head, the spiral drilling knife has a counterclockwise spiral direction, and a storage hopper is provided inside the drilling head.

[0014] Preferably, the discharge assembly includes a swivel rotatably mounted on the lower portion of the outer wall of the drilling barrel, and an electromagnetic locking assembly is nested between the swivel and the drilling barrel, a spiral cleaning knife is integrally formed on the outer wall of the swivel, and the spiral cleaning knife has a clockwise direction, and three groups of feed ports are opened at the bottom of the outer wall of the drilling barrel along the circumferential direction.

[0015] Preferably, the discharge assembly also includes a material storage trough opened at the bottom of the inner cavity of the drilling barrel, and the material storage trough is connected to the feed port and the storage hopper, a longitudinal material guide channel is opened in the middle of the drilling barrel, the material guide channel is connected to the material storage trough, a first servo motor is fixed inside the protective box, the output end of the first servo motor extends to the material guide channel and is fixedly equipped with a rotating shaft, a feeding auger is integrally formed on the outer side wall of the rotating shaft, and the bottom end of the feeding auger extends into the material storage trough.

[0016] Preferably, the protection box and the drilling barrel are integrally connected, and the bottom of the protection box is sealed, a semicircular discharge port corresponding to and connected to the material guide channel is opened on the top of the drilling barrel, and a discharge hopper is fixedly arranged at the discharge port, and the diameter of the feed auger matches the material guide channel.

[0017] Preferably, the sampling assembly includes a storage tank opened inside the drilling barrel, and an upper hinged baffle and a lower hinged baffle corresponding to the storage tank are hingedly assembled on the outer wall of the drilling barrel through a torsion spring, and a first electric telescopic rod is fixed on the inner wall of the storage tank, and the output end of the first electric telescopic rod is fixedly connected to a protective box, a second servo motor is fixed inside the protective box, and the output end of the second servo motor is fixedly assembled with a sampling barrel.

[0018] Preferably, the end of the sampling barrel is hingedly equipped with four groups of spliced ​​sampling claws through a pin shaft, and the four groups of sampling claws are combined into a conical packaging cover, and the conical packaging cover matches the sampling barrel, and an annular storage groove is opened in the sampling barrel, and a second electric telescopic rod corresponding to the four groups of sampling claws is hingedly installed on the inner side wall of the storage groove, and the output end of the single group of second electric telescopic rods is hingedly assembled on the inner side wall of the sampling claw through a pin shaft.

[0019] Preferably, the inner cavity of the sampling tube is configured as a sample collecting groove, a driving member is fixed on a side of the sample collecting groove away from the opening, and a pushing member matching the driving member is slidably mounted in the sample collecting groove.

[0020] The present invention provides a geological exploration sampling method, which is implemented by using the geological exploration sampling device as described above. The steps of the sampling method are:

[0021] S1: The device is transported to a preset location using a transport device and unloaded. The support assembly provides a stable support force for the device, and when the drilling assembly is in motion, it drives the drill head to rotate, and cooperates with the retraction of the hydraulic telescopic rod to give the drill head a force to insert into the ground, so that the drill head rotates and is inserted into the soil to be sampled, which is convenient for subsequent sampling work;

[0022] S2: When the drilling head on the drilling tube rotates, the spiral drilling knife completes the soil breaking work, and as the drilling tube goes deeper, the drilled soil will turn up along with the rotating spiral drilling knife on the drilling head, and the above operation is continued to perform the drilling operation;

[0023] S3: While the spiral drilling knife is breaking the soil, the spiral cleaning knife on the discharge assembly blocks the turned-up soil to prevent the turned-up soil from accumulating at the sampling assembly. Since the spiral cleaning knife and the spiral drilling knife have opposite spiral directions, the spiral drilling knife transports the soil upward to achieve the purpose of breaking the soil and drilling during the process of the spiral cleaning knife and the spiral drilling knife rotating in the same direction, and the spiral cleaning knife has the function of blocking and squeezing downward, ensuring that the soil after rotary excavation will not pass over the spiral cleaning knife and move up to the sampling assembly, and at the same time, the soil is prompted to enter the storage hopper and storage tank through the feed port for collection, without affecting the drilling work of the drilling head;

[0024] S4: When the discharge assembly is in motion, the first servo motor drives the feed auger on the rotating shaft to rotate, and transports the soil in the storage tank upward to the discharge hopper for storage. The operation of the discharge assembly does not affect the operation of the drilling assembly, and can ensure that there is storage space at the drilling head, so that the soil excavated by subsequent drilling has space to move upward, and the drilling and cleaning can be achieved, so as to prevent the soil from accumulating and covering the sampling assembly, so that the sampling assembly collects non-genuine soil samples during sampling, and solves the problem of soil collection errors at the root.

[0025] S5: When the preset depth is reached, the drilling component stops, and the sampling component starts sampling. In this way, the soil collected by the sampling component truly represents the soil sample at the depth, ensuring the accuracy of sample collection.

[0026] Technical effects and advantages of the present invention:

[0027] 1. In the present invention, while the spiral drilling knife is breaking the soil, the spiral cleaning knife on the discharge assembly blocks the turned-up soil to prevent the turned-up soil from accumulating at the sampling assembly. Since the spiral cleaning knife and the spiral drilling knife have opposite spiral directions, during the process in which the spiral cleaning knife and the spiral drilling knife rotate in the same direction, the spiral drilling knife transports the soil upward to achieve the purpose of breaking the soil and drilling, while the spiral cleaning knife has the function of blocking and squeezing downward.

[0028] 2. When the spiral cleaning knife in the present invention rotates, it not only has the function of crushing the soil and preventing the soil from agglomerating, but also can use its own spiral characteristics to squeeze the soil to the feed port, and as the amount of soil increases, the squeezing force becomes stronger, thereby ensuring that the soil subsequently turned up by the spiral drilling knife can be blocked and transported to the storage tank, which has a benign drainage effect on the soil, provides convenience for the sampling of the sampling component, prevents the soil from accumulating and covering the sampling component, so that the sampling component collects non-real soil samples during sampling, and solves the problem of soil collection errors at the root. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the support assembly structure of the present invention;

[0031] Figure 3 It is a schematic diagram of the overall structure of the drilling assembly of the present invention;

[0032] Figure 4 It is a schematic diagram of the longitudinal cross-sectional structure of the drilling assembly of the present invention;

[0033] Figure 5 It is a schematic diagram of the enlarged structure of part A of the present invention;

[0034] Figure 6 This is a schematic diagram of the structure of the sampling assembly of the present invention;

[0035] Figure 7 It is a schematic diagram of the horizontal cross-sectional structure of the drilling assembly of the present invention.

[0036] In the figure: 100, support assembly; 101, base; 102, fixed frame; 103, hydraulic telescopic rod; 104, slide plate; 105, installation frame; 106, guide seat;

[0037] 200, drilling assembly; 201, driving motor; 202, protection box; 203, drilling tube; 204, drilling head; 205, spiral drilling tool; 206, storage hopper;

[0038] 300, discharging assembly; 301, rotating ring; 302, spiral cleaning knife; 303, feeding port; 304, material storage tank; 305, material guide channel; 306, first servo motor; 307, rotating shaft; 308, feeding auger; 309, discharging hopper;

[0039] 400, sampling assembly; 401, storage tank; 402, upper hinged baffle; 403, lower hinged baffle; 404, first electric telescopic rod; 405, protective box; 406, second servo motor; 407, sampling cylinder; 408, sampling claw; 409, storage tank; 410, second electric telescopic rod; 411, driving member; 412, pushing member; 413, sample collecting tank. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] Embodiment 1:

[0042] This embodiment provides Figures 1 to 7 A sampling device for geological exploration is shown, comprising:

[0043] The support assembly 100 provides stable support for the entire device.

[0044] The drilling assembly 200 is installed on the supporting assembly 100 and is driven by the supporting assembly 100 to move in a height direction.

[0045] The discharge assembly 300 is assembled on the drilling assembly 200. The discharge assembly 300 first blocks the soil during the drilling process, and then collects the soil in real time and quickly discharges the drilling assembly 200 to avoid the influence of the soil on the actual soil sampling during the drilling work.

[0046] The sampling components 400 are arranged in multiple groups and are evenly arranged inside the drilling component 200. The sampling components 400 perform sampling operations on the soil at different depths after the discharge component 300 blocks and collects the soil.

[0047] Controller that enables integrated control of the entire device.

[0048] Specifically:

[0049] See also Figure 1 and Figure 2The support assembly 100 includes two sets of bases 101 arranged in parallel, and the tops of the two sets of bases 101 are integrally formed with a fixed frame 102. Two sets of hydraulic telescopic rods 103 are fixed symmetrically inside the fixed frame 102. A slide plate 104 is fixed to the output end of each set of hydraulic telescopic rods 103, and an installation frame 105 is fixed between the two sets of slide plates 104. A guide seat 106 for guiding and limiting the drilling assembly 200 is fixed on the fixed frame 102. In actual use, the two sets of hydraulic telescopic rods 103 move synchronously, which can provide power supply for the drilling assembly 200, so as to facilitate the insertion of the drilling assembly 200 into the soil.

[0050] See also Figure 3 and Figure 4 The drilling assembly 200 includes a driving motor 201 fixed inside the mounting frame 105, a protective box 202 is fixedly installed at the output end of the driving motor 201, a drilling tube 203 is fixed at the bottom of the protective box 202, the drilling tube 203 is sleeved and installed inside the guide seat 106, a drilling head 204 is integrally formed at the bottom of the drilling tube 203, a spiral drilling knife 205 is integrally formed on the outer wall of the drilling head 204, the spiral drilling knife 205 is counterclockwise, and a storage hopper 206 is arranged in the drilling head 204.

[0051] In actual use, since the drive motor 201 is fixed in the installation frame 105, the position of the drive motor 201 is relatively fixed. When the controller controls the drive motor 201 to work, the drive motor 201 drives the protection box 202 and the drilling tube 203 to rotate synchronously, so that when the drilling head 204 on the drilling tube 203 rotates, the spiral drilling knife 205 completes the ground breaking work, and as the drilling tube 203 goes deeper, the drilled soil will turn up with the rotating spiral drilling knife 205 on the drilling head 204, and the above operation is continued to perform the drilling operation, which can ensure the basic ground breaking operation and facilitate soil sampling.

[0052] See also Figure 1-Figure 7 The discharge assembly 300 includes a swivel 301 rotatably mounted on the lower portion of the outer wall of the drilling barrel 203, and an electromagnetic locking assembly is nested between the swivel 301 and the drilling barrel 203. A spiral cleaning knife 302 is integrally formed on the outer wall of the swivel 301, and the spiral cleaning knife 302 is clockwise. Three groups of feed ports 303 are provided at the bottom of the outer wall of the drilling barrel 203 along the circumferential direction. The discharge assembly 300 also includes a storage trough 304 provided at the bottom of the inner cavity of the drilling barrel 203, and the storage trough 304 is connected to the feed port 303 and the storage hopper 206.

[0053] While the spiral drilling knife 205 is breaking the soil, the spiral cleaning knife 302 on the discharge assembly 300 blocks the turned-up soil to prevent the turned-up soil from accumulating at the sampling assembly 400. Since the spiral cleaning knife 302 and the spiral drilling knife 205 have opposite spiral directions, during the process of the spiral cleaning knife 302 and the spiral drilling knife 205 rotating in the same direction, the spiral drilling knife 205 transports the soil upward to achieve the purpose of breaking the soil and drilling, while the spiral cleaning knife 302 has the function of blocking and squeezing downward.

[0054] It is worth mentioning that, at the beginning of the ground-breaking operation, the amount of soil crushed by the spiral drilling knife 205 is relatively small, and the storage hopper 206 and the storage trough 304 can meet the soil storage needs. Therefore, the electromagnetic locking assembly is not locked at this time, and there is no need to increase the squeezing force on the soil. In this way, when the drilling tube 203 rotates, the swivel 301 and the spiral cleaning knife 302 will not rotate with the drilling tube 203. At this time, the spiral cleaning knife 302 and the drilling hole are relatively stationary, so that the spiral cleaning knife 302 can ensure that the soil after being rotary dug will not pass over the spiral cleaning knife 302 and move up to the sampling assembly 400. At the same time, when the drilling head 204 moves downward, the spiral cleaning knife 302 prompts the turned-up soil to pass through the feed port 303 and enter the storage hopper 206 and the storage trough 304 for collection, which does not affect the drilling work of the drilling head 204.

[0055] See also Figure 4 A longitudinal material guiding channel 305 is provided in the middle of the drilling barrel 203, and the material guiding channel 305 is connected to the material storage trough 304. A first servo motor 306 is fixed inside the protection box 202, and the output end of the first servo motor 306 extends to the material guiding channel 305 and is fixedly equipped with a rotating shaft 307. A material feeding auger 308 is integrally formed on the outer wall of the rotating shaft 307, and the bottom end of the material feeding auger 308 extends into the material storage trough 304. The protection box 202 and the drilling barrel 203 are integrally formed and connected, and the bottom of the protection box 202 is sealed. A semicircular discharge port corresponding to and connected to the material guiding channel 305 is provided on the top of the drilling barrel 203, and a discharge hopper 309 is fixedly provided at the discharge port, and the diameter of the material feeding auger 308 matches the material guiding channel 305.

[0056] As the drilling depth of the drilling probe 204 increases, the amount of soil stored in the storage tank 304 increases, resulting in an increase in the resistance of subsequent soil entering the storage tank 304 through the feed port 303. Therefore, in order to improve the soil discharge capacity, the controller controls the action of the electromagnetic locking assembly to enable the swivel 301 and the drilling tube 203 to be limited and installed. In this way, when the drilling tube 203 rotates, the swivel 301 rotates synchronously. In this way, when the spiral cleaning knife 302 rotates, it not only has the function of crushing the soil and preventing the soil from agglomerating, but also can use its own spiral characteristics to squeeze the soil to the feed port 303. Moreover, as the amount of soil increases, the squeezing force becomes stronger, thereby ensuring that the soil subsequently turned up by the spiral drilling knife 205 can be blocked and transported to the storage tank 304, which has a benign drainage effect on the soil and provides convenience for sampling by the sampling component 400.

[0057] It is worth mentioning that when the electromagnetic locking assembly is locked, the controller synchronously controls the first servo motor 306 to start synchronously, and the first servo motor 306 drives the feed auger 308 on the rotating shaft 307 to rotate, transporting the soil in the storage trough 304 upward to the discharge hopper 309 for storage, and finally centralized cleaning.

[0058] The operation of the discharge assembly 300 does not affect the operation of the drilling assembly 200, and can ensure that there is storage space at the drill head 204, so that the soil excavated by subsequent drilling has space to move upward, and cleaning can be achieved while drilling, preventing soil accumulation from covering the sampling assembly 400 and causing the sampling assembly 400 to collect non-genuine soil samples during sampling, thereby solving the problem of soil collection errors at the root.

[0059] See also Figure 4-Figure 7 The sampling assembly 400 includes a storage tank 401 opened inside the drilling tube 203, and an upper hinged baffle 402 and a lower hinged baffle 403 corresponding to the storage tank 401 are hingedly assembled on the outer wall of the drilling tube 203 through a torsion spring, and a first electric telescopic rod 404 is fixed on the inner wall of the storage tank 401, and the output end of the first electric telescopic rod 404 is fixedly connected to a protective box 405, and a second servo motor 406 is fixed inside the protective box 405, and a sampling tube 407 is fixedly assembled on the output end of the second servo motor 406.

[0060] When the preset depth is reached, the drilling assembly 200 stops, and the sampling assembly 400 starts sampling. In this way, the soil collected by the sampling assembly 400 truly represents the soil sample at this depth, ensuring the accuracy of sample collection. That is, the controller controls the first electric telescopic rod 404 to extend outward, prompting the protective box 405 and the sampling tube 407 to move outward synchronously, pushing the upper hinged baffle 402 to flip and move out of the storage tank 401, and starting sampling through the sampling tube 407.

[0061] See also Figure 6The end of the sampling barrel 407 is hingedly assembled with four groups of spliced ​​sampling claws 408 through a pin shaft, and the four groups of sampling claws 408 are combined into a conical packaging cover, and the conical packaging cover and the sampling barrel 407 match, and an annular storage groove 409 is opened in the sampling barrel 407, and a second electric telescopic rod 410 corresponding to the four groups of sampling claws 408 is hingedly installed on the inner wall of the storage groove 409, and the output end of the single group of second electric telescopic rods 410 is hingedly assembled on the inner wall of the sampling claw 408 through a pin shaft.

[0062] The controller controls the second electric telescopic rod 410 to extend outward, which can push the sampling claw 408 to synchronously turn outward and open the entrance of the sampling tube 407. Since the second electric telescopic rod 410 is hingedly mounted on the inner wall of the storage groove 409, when the second electric telescopic rod 410 is extended, it can push the sampling claw 408 to rotate, and there will be no motion interference, thereby ensuring the normal sampling. After the four groups of sampling claws 408 are opened synchronously, the first electric telescopic rod 404 continues to extend outward, prompting the sampling claw 408 and the sampling tube 407 to be inserted into the soil at this depth. When the four groups of second electric telescopic rods 410 are synchronously retracted and drive the sampling claw 408 to reset, the soil can be naturally sealed in the sample collecting groove 413, thereby realizing the storage of soil samples and completing the sealing.

[0063] It is worth noting that when the drilling tube 203 penetrates to a deeper position, the soil hardness is relatively large. At this time, while the first electric telescopic rod 404 is extended, the second servo motor 406 rotates, which can drive the sampling tube 407 to start rotating. In this way, with the extension of the first electric telescopic rod 404, the sampling claw 408 can easily break through the soil and drive the sampling tube 407 to be inserted into the soil at a preset depth, thereby improving the convenience of sampling.

[0064] See also Figure 6 The inner cavity of the sampling tube 407 is set as a sample collecting groove 413, and a driving member 411 is fixed on the side of the sample collecting groove 413 away from the opening. A pushing member 412 matching the driving member 411 is slidably assembled in the sample collecting groove 413. The driving member 411 is an electromagnet, and the pushing member 412 is an armature plate.

[0065] When it is necessary to increase the sample volume at this depth, after the controller controls the first electric telescopic rod 404 to retract into the storage tank 401, it controls the four groups of second electric telescopic rods 410 to extend outward again to open the entrance of the sampling tube 407. At this time, the controller controls the electromagnet to be energized, which can generate a thrust to push the armature plate to move in the sample collecting tank 413. As the current introduced into the electromagnet increases, the thrust also gradually increases, and the sample in the sample collecting tank 413 can be pushed into the storage tank 401, so as to clean the soil inside the sample collecting tank 413. At the same time, the sample storage at this depth is realized through the storage tank 401. Then the controller controls the sampling component 400 to perform the sampling operation again with the same operation until the sampling volume meets the usage requirements.

[0066] It is worth mentioning that three groups of sampling components 400 are arranged on the same horizontal plane of the drilling tube 203, and the sampling components 400 are arranged in multiple groups along the length direction of the drilling tube 203 (the number of sampling components 400 is set according to the actual sampling needs), which can perform sampling needs of different depths and different positions at the same time. At the same time, due to the existence of the discharge component 300, an excellent sampling environment without interference from other soils can be provided for the sampling component 400, thereby ensuring the purity of the sampled soil and improving accuracy.

[0067] Embodiment 2:

[0068] This embodiment provides a geological exploration sampling method, which is implemented using the geological exploration sampling device as described above. The steps of the sampling method are:

[0069] S1: The device is transported to a preset location using a transport device and unloaded. The support assembly 100 provides a stable support force for the device, and when the drilling assembly 200 is in motion, it drives the drilling head 204 to rotate, and cooperates with the retracting action of the hydraulic telescopic rod 103 to give the drilling head 204 a force to insert into the ground, so that the drilling head 204 rotates and is inserted into the soil to be sampled, which is convenient for subsequent sampling work;

[0070] S2: When the drilling head 204 on the drilling tube 203 rotates, the spiral drilling knife 205 completes the soil breaking work, and as the drilling tube 203 goes deeper, the drilled soil will turn up along with the spiral drilling knife 205 rotating on the drilling head 204, and the above operation is continued to perform the drilling operation;

[0071] S3: While the spiral drilling knife 205 is breaking the soil, the spiral cleaning knife 302 on the discharge assembly 300 blocks the turned-up soil to prevent the turned-up soil from accumulating at the sampling assembly 400. Since the spiral cleaning knife 302 and the spiral drilling knife 205 have opposite spiral directions, during the process of the spiral cleaning knife 302 and the spiral drilling knife 205 rotating in the same direction, the spiral drilling knife 205 transports the soil upward to achieve the purpose of breaking the soil and drilling, and the spiral cleaning knife 302 has the function of blocking and squeezing downward, ensuring that the soil after rotary excavation will not pass over the spiral cleaning knife 302 and move up to the sampling assembly 400, and at the same time, the soil is prompted to enter the storage hopper 206 and the storage tank 304 through the feed port 303 for collection, without affecting the drilling work of the drilling head 204;

[0072] S4: When the discharge assembly 300 is in motion, the first servo motor 306 drives the feeding auger 308 on the rotating shaft 307 to rotate, and transports the soil in the storage tank 304 upward to the discharge hopper 309 for storage. The operation of the discharge assembly 300 does not affect the operation of the drilling assembly 200, and can ensure that there is storage space at the drilling head 204, so that the soil excavated by subsequent drilling has space to move upward, and the cleaning is realized while drilling, so as to prevent the soil from accumulating and covering the sampling assembly 400, so that the sampling assembly 400 collects non-genuine soil samples during sampling, and solves the problem of soil collection errors at the root.

[0073] S5: When the preset depth is reached, the drilling assembly 200 stops, and the sampling assembly 400 starts sampling. In this way, the soil collected by the sampling assembly 400 truly represents the soil sample at the depth, ensuring the accuracy of sample collection.

[0074] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sampling device for geological exploration, characterized in that: include: A support assembly (100), wherein the support assembly (100) provides stable support for the entire device; A drilling assembly (200), wherein the drilling assembly (200) is mounted on the support assembly (100) and is driven by the support assembly (100) to move in a height direction; A discharge assembly (300), wherein the discharge assembly (300) is assembled on the drilling assembly (200), and the soil in the drilling process is first blocked by the discharge assembly (300), and then the soil is collected in real time and quickly discharged from the drilling assembly (200), so as to avoid the influence of the soil during the drilling work on the actual soil sampling; A sampling assembly (400) is provided in a plurality of groups and is evenly arranged inside the drilling assembly (200), wherein the sampling assembly (400) performs a sampling operation on soil at different depths after the discharge assembly (300) blocks and collects the soil; The support assembly (100) comprises two groups of bases (101) arranged in parallel, the tops of the two groups of bases (101) are integrally formed with a fixing frame (102), two groups of hydraulic telescopic rods (103) symmetrically arranged on the inside of the fixing frame (102), a slide plate (104) is fixed to the output end of each group of the hydraulic telescopic rods (103), an installation frame (105) is fixed between the two groups of the slide plates (104), and a guide seat (106) for guiding and limiting the drilling assembly (200) is fixed on the fixing frame (102); The drilling assembly (200) comprises a driving motor (201) fixed inside the mounting frame (105); a protection box (202) is fixedly mounted on the output end of the driving motor (201); a drilling tube (203) is fixedly mounted on the bottom of the protection box (202); the drilling tube (203) is sleeved and mounted inside the guide seat (106); a drilling head (204) is integrally formed at the bottom of the drilling tube (203); a spiral drilling knife (205) is integrally formed on the outer wall of the drilling head (204); the spiral drilling knife (205) is counterclockwise in spiral direction; and a storage hopper (206) is provided inside the drilling head (204); The discharge assembly (300) comprises a swivel (301) rotatably mounted on the lower part of the outer wall of the drilling tube (203), and an electromagnetic locking assembly is nested between the swivel (301) and the drilling tube (203); a spiral cleaning knife (302) is integrally formed on the outer wall of the swivel (301), and the spiral direction of the spiral cleaning knife (302) is clockwise; and three groups of feed ports (303) are provided at the bottom of the outer wall of the drilling tube (203) along the circumferential direction; The material discharge assembly (300) further comprises a material storage trough (304) provided at the bottom of the inner cavity of the drilling tube (203), and the material storage trough (304) is connected to the material feed port (303) and the material storage hopper (206); a longitudinal material guide channel (305) is provided in the middle of the drilling tube (203), and the material guide channel (305) is connected to the material storage trough (304); a first servo motor (306) is fixed inside the protection box (202); an output end of the first servo motor (306) extends to the material guide channel (305) and is fixedly equipped with a rotating shaft (307); a material feeding auger (308) is integrally formed on the outer side wall of the rotating shaft (307), and the bottom end of the material feeding auger (308) extends into the material storage trough (304); The protection box (202) and the drilling tube (203) are integrally connected, and the bottom of the protection box (202) is sealed. The top of the drilling tube (203) is provided with a semicircular discharge port that corresponds to and is connected to the material guide channel (305), and a discharge hopper (309) is fixedly provided at the discharge port. The diameter of the feed auger (308) matches the material guide channel (305).

2. The sampling device for geological exploration according to claim 1, characterized in that: The sampling assembly (400) includes a storage tank (401) opened inside a drilling tube (203); an upper hinged baffle (402) and a lower hinged baffle (403) corresponding to the storage tank (401) are hingedly mounted on the outer wall of the drilling tube (203) through a torsion spring; a first electric telescopic rod (404) is fixed on the inner wall of the storage tank (401); an output end of the first electric telescopic rod (404) is fixedly connected to a protective box (405); a second servo motor (406) is fixed inside the protective box (405); and a sampling tube (407) is fixedly mounted on the output end of the second servo motor (406).

3. The sampling device for geological exploration according to claim 2, characterized in that: The end of the sampling barrel (407) is hingedly mounted with four groups of sampling claws (408) assembled in a spliced ​​manner via a pin shaft, and the four groups of sampling claws (408) are combined into a conical packaging cover, and the conical packaging cover matches the sampling barrel (407), and an annular storage groove (409) is provided in the sampling barrel (407), and second electric telescopic rods (410) corresponding to the four groups of sampling claws (408) are hingedly mounted on the inner side wall of the storage groove (409), and the output end of a single group of second electric telescopic rods (410) is hingedly mounted on the inner side wall of the sampling claw (408) via a pin shaft.

4. The sampling device for geological exploration according to claim 3, characterized in that: The inner cavity of the sampling cylinder (407) is configured as a sample collecting groove (413), a driving member (411) is fixed on a side of the sample collecting groove (413) away from the opening, and a pushing member (412) matching the driving member (411) is slidably mounted in the sample collecting groove (413).

5. A geological exploration sampling method, which is implemented by using the geological exploration sampling device as claimed in claim 4, characterized in that: The steps of the sampling method are: S1: The device is transported to a preset location using a transport device and unloaded. The support assembly (100) provides a stable support force for the device, and when the drilling assembly (200) is in motion, it drives the drilling head (204) to rotate, and cooperates with the retracting action of the hydraulic telescopic rod (103) to give the drilling head (204) a force to insert into the ground, so that the drilling head (204) rotates and is inserted into the soil to be sampled, thereby facilitating subsequent sampling work; S2: When the drilling head (204) on the drilling tube (203) rotates, the spiral drilling knife (205) completes the soil breaking work, and as the drilling tube (203) goes deeper, the drilled soil will turn up along with the spiral drilling knife (205) rotating on the drilling head (204), and the above operation is continued to perform the drilling operation; S3: While the spiral drilling knife (205) is breaking the soil, the spiral cleaning knife (302) on the discharge assembly (300) blocks the turned-up soil, preventing the turned-up soil from accumulating at the sampling assembly (400). Since the spiral cleaning knife (302) and the spiral drilling knife (205) have opposite spiral directions, during the process of the spiral cleaning knife (302) and the spiral drilling knife (205) rotating in the same direction, the spiral drilling knife (205) transports the soil upward to achieve the purpose of breaking the soil and drilling, while the spiral cleaning knife (302) has the function of blocking and squeezing downward, ensuring that the soil after being rotary excavated will not pass over the spiral cleaning knife (302) and move upward to the sampling assembly (400), and at the same time, the soil is prompted to pass through the feed port (303) and enter the storage hopper (206) and the storage trough (304) for collection, without affecting the drilling work of the drilling head (204); S4: When the discharge assembly (300) is in motion, the first servo motor (306) drives the feed auger (308) on the rotating shaft (307) to rotate, and transports the soil in the storage tank (304) upward to the discharge hopper (309) for storage. The operation of the discharge assembly (300) does not affect the operation of the drilling assembly (200), and can ensure that there is storage space at the drilling head (204), so that the soil excavated by subsequent drilling has space to move upward, and cleaning can be achieved while drilling, so as to prevent soil from accumulating and covering the sampling assembly (400), so that the sampling assembly (400) collects non-genuine soil samples during sampling, thereby solving the problem of soil collection errors at the root. S5: When the preset depth is reached, the drilling assembly (200) stops, and the sampling assembly (400) starts sampling. In this way, the soil collected by the sampling assembly (400) is a soil sample that truly represents the depth, thereby ensuring the accuracy of sample collection.

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