A geological exploration layered sampling device and a sampling method

Abstract

The present application relates to geological exploration technical field, specifically to a geological exploration layered sampling device and sampling method, including multiple sampling mechanisms are located above the drill bit, the sampling mechanism includes the shell, and the shell top and bottom both ends are fixedly connected with connecting rod, wherein, the connecting rod fixedly connected with the universal joint is located above, the connecting rod bottom end is provided with the thread hole, in the present application, according to the sampling depth required to select the appropriate number of sampling mechanism in turn splicing, again, multiple sampling mechanisms are adjusted by adjusting mechanism to adjust the position to form arc or spiral structure, then, multiple sampling mechanisms are sent into the silt layer according to the arc or spiral structure formed as the entry path by using the conveying mechanism, so that multiple sampling mechanisms are located at different depths of silt layer, and obstacles are avoided, the sampling range is improved, and the sampling cylinder is removed from the shell to be away from the shell, and then the silt is sucked for sampling.

Description

Technical Field

[0001] This invention relates to the field of geological exploration technology, specifically a geological exploration stratified sampling device and sampling method. Background Technology

[0002] In some construction engineering surveys, geological investigations are required, which necessitates stratified sampling of the silt layer. While piston-type soil samplers are conventionally used for sampling, they are often obstructed by rocks within the silt layer, preventing them from reaching the correct depth. Furthermore, the scraping between the sampler and the silt layer during sampling can cause disturbance, disrupting the original stratification of the silt around the sampling path and causing mixing of silt at different depths and in different physical states. This often results in the sampler drawing in nearby silt, making the process inconvenient. Summary of the Invention

[0003] The purpose of this invention is to provide a geological exploration stratified sampling device and sampling method to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A geological exploration stratified sampling device, comprising: The system comprises a drill bit, multiple sampling mechanisms arranged vertically in sequence, an adjustment mechanism for adjusting the positional relationship between two adjacent sampling mechanisms, and a conveying mechanism for transporting the multiple sampling mechanisms into the silt layer. All sampling mechanisms are located above the drill bit. Each sampling mechanism includes a housing, with connecting rods fixedly connected to both the top and bottom ends. The upper connecting rod is fixedly connected to a universal joint, and the lower connecting rod has a threaded hole at its bottom end. Screws are fixedly connected to the top of the universal joint and the top of the drill bit, and these screws engage with the threaded holes. A guide cylinder is fixedly connected to the outer wall of the housing, and the interior of the guide cylinder is connected to the interior of the housing. A sampling cylinder is slidably fitted inside the guide cylinder, and the sampling cylinder has an open end. An air pump is installed at the other end of the sampling cylinder, and the air pump is connected to the sampling cylinder via a flexible hose. The adjustment mechanism is configured to work with the multiple sampling mechanisms, and the conveying mechanism is configured to work with the adjustment mechanism.

[0005] Furthermore, a connecting block is fixedly connected to the inner side of the housing, and a pneumatic push rod is rotatably connected to the connecting block. Two support rods are fixedly connected to the other end of the sampling cylinder, and the movable end of the pneumatic push rod is rotatably connected to one end of the two support rods.

[0006] Furthermore, the regulatory mechanism includes: The ring consists of a ring body, a rotating ring, and a guide ring. Multiple supports are fixedly connected to the outer wall of the ring body. The inner wall of the rotating ring is rotatably sleeved with the outer wall of the ring body. A hydraulic cylinder is fixedly connected to the outer wall of the rotating ring. The guide ring is located below the rotating ring. A rotating rod is rotatably connected to the outer wall of the guide ring, and the top of the rotating rod is fixedly connected to the outer wall of the rotating ring. A slide rail is fixedly connected to the outer wall of the guide ring, and a slider is slidably connected inside the slide rail. The movable end of the hydraulic cylinder is rotatably connected to the slider.

[0007] Furthermore, the universal joint includes: The device comprises two staggered movable parts, a sphere, and four insert rods. The lower movable part is fixedly connected to the adjacent connecting rod, and the upper movable part is fixedly connected to the adjacent screw. Both movable parts are U-shaped, and each of their two arms has a locking hole. The sphere is located between the two movable parts, and four rods are fixedly connected to the outer spherical surface of the sphere. Each of the four rods is rotatably fitted into one of the four locking holes, and each of the four rods has a locking groove at one end. The four insert rods are movably inserted into the four locking holes, and each of the four insert rods has a fixedly connected positioning rod at one end. Each of the four positioning rods is movably inserted into the four locking grooves.

[0008] Furthermore, the ring body is equipped with multiple cylinders, and all cylinders are fixedly connected to the top of the adjacent support. The multiple cylinders are distributed in a circle with the center of the ring body as the center, and the moving ends of the multiple cylinders are fixedly connected to clamps.

[0009] Furthermore, the conveying mechanism includes: The device consists of multiple positioning blocks, a toothed ring, two support arms, and two rotating shafts. Each positioning block corresponds to one of the multiple brackets, and each positioning block is fixedly connected to an adjacent bracket. The toothed ring is rotatably sleeved between the multiple positioning blocks. Two connecting shafts are fixedly connected to the outer wall of the toothed ring. The top ends of the two support arms are rotatably connected to the two connecting shafts, and one end of each of the two rotating shafts is rotatably connected to the bottom end of the two support arms. The other end of each of the two rotating shafts is fixedly connected to a plate, and a U-shaped rod is fixedly connected between the two plates. A roller is rotatably connected to one side of the U-shaped rod.

[0010] Furthermore, both ends of the bottom of one support arm are fixedly connected to a drive box, and each drive box contains a swing cylinder. The output ends of the two swing cylinders pass through the support arm, and the output ends of the two swing cylinders are fixedly connected to the rotating shaft and the connecting shaft, respectively.

[0011] Furthermore, multiple sleeve holes are provided on one side of each of the two plates, and a moving rod is slidably fitted inside each sleeve hole. An I-beam is set between two moving rods that are parallel to each other on the two plates. An electric roller is set between the I-beam and each of the two adjacent moving rods. Rotating seats are fixedly connected to both ends of the electric roller. One rotating seat is rotatably connected to one end of an adjacent moving rod, and the other rotating seat is rotatably connected to an adjacent I-beam. Electric push rods are fixedly connected to one side of each of the two plates, and connecting strips are fixedly connected to the movable ends of the two electric push rods. The connecting strips are fixedly connected to the multiple adjacent moving rods.

[0012] Furthermore, two motor housings are fixedly connected to the top of a bracket, and each motor housing contains a drive motor. The motor shafts of the two drive motors are fixedly connected to gears, and multiple gear teeth are fixedly connected to the outer wall of the rotating ring. The two gears mesh with the gear teeth on the rotating ring and the gear ring, respectively.

[0013] A sampling method for a geological exploration stratified sampling device specifically includes the following steps: Step 1: Select an appropriate number of sampling mechanisms based on the sampling depth and sampling path, and then manually assemble multiple sampling mechanisms in sequence; Step 2: Adjust the relative position of the two adjacent sampling mechanisms using the adjustment mechanism, and then fix them manually; Step 3: Use a conveying mechanism to send multiple sampling mechanisms, which are adjusted to a suitable shape, into the silt layer. When sending them into the silt layer, the entry path of the multiple sampling mechanisms is the path formed by the shapes of the multiple sampling mechanisms. Then, use the sampling mechanisms to sample the silt layer at different heights.

[0014] Compared with the prior art, the beneficial effects of the present invention are: By selecting an appropriate number of sampling mechanisms according to the required sampling depth, and then splicing multiple sampling mechanisms in sequence, the positions of multiple sampling mechanisms are adjusted by an adjusting mechanism so that the relative positional relationship between two adjacent sampling mechanisms is adjusted to form an arc or spiral structure. Then, the multiple sampling mechanisms are sent into the silt layer according to the arc or spiral structure formed by the conveying mechanism, so that multiple sampling mechanisms are located at different depths in the silt layer, avoiding obstacles and increasing the sampling range. After the sampling cylinder is moved out of the shell and away from the silt near the shell, the silt is sucked up by the sampling cylinder for sampling.

[0015] By sequentially screwing multiple sampling mechanisms together, the screws on the universal joints are screwed into the threaded holes on the adjacent connecting rods. During the splicing process, the already spliced ​​sampling mechanisms are clamped and fixed using a cylinder and clamping plate. Then, the sampling mechanism to be spliced ​​is moved above the already spliced ​​sampling mechanism for manual splicing. The sampling mechanism below the already spliced ​​sampling mechanism is then transported to the silt layer using a conveying mechanism, thereby moving the already spliced ​​sampling mechanism down into the guide ring. The newly spliced ​​sampling mechanism is then fixed using a cylinder and clamping plate. The drive motor is then started to rotate the rotating ring and adjust the angle of the rotating rod. Then, the hydraulic cylinder is started to push the guide ring to deflect, thereby causing the already spliced ​​sampling mechanism to deflect using the universal joint, changing its positional relationship with the newly spliced ​​sampling mechanism. Finally, the insertion rod and positioning rod are manually inserted into the locking holes and slots to fix the universal joint, thereby fixing the relative positional relationship between the two adjacent sampling mechanisms. By starting the drive motor to rotate the gear ring, the positions of the two support arms are adjusted. Then, the two swing cylinders are started to adjust the rotation angle of the support arms and the rotation angle of the two plates, so that the abutment roller supports the adjacent shell. Then, the two hydraulic cylinders are started to drive the adjacent moving rod to move, so that the moving rod pulls the electric drum towards the shell, so that the electric drum presses the shell onto the abutment roller. Then, the electric drum is started to drive the shell to move along the angle deflected by the plate. Thus, according to the arc or spiral pattern formed by multiple sampling mechanisms, when multiple sampling mechanisms are sent into the silt layer, the entry path of multiple sampling mechanisms is also arc or spiral, reducing the disturbance to the silt layer. Once the sampling mechanism enters the silt layer, the pneumatic pusher is activated to move the adjacent sampling cylinder, causing the sampling cylinder to move out of the shell and away from the vicinity of the shell. This keeps the opening of the sampling cylinder away from the silt layer disturbed by the sampling mechanism entering the silt layer. Then, the air pump is activated to use the sampling cylinder to extract the silt near the opening of the sampling cylinder, thereby taking a sample. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the sampling mechanism structure in this invention; Figure 3 This is an exploded view of the universal joint structure in this invention; Figure 4 This is the present invention. Figure 3 Enlarged view of a portion of point A in the middle; Figure 5 This is a schematic diagram of the internal structure of the shell in this invention; Figure 6 This is a schematic diagram showing the positional relationship between the adjusting mechanism and the conveying mechanism in this invention; Figure 7 This is a schematic diagram of the adjustment mechanism structure in this invention; Figure 8 This is a schematic diagram of the rotating rod and guide ring structure in this invention; Figure 9 This is a schematic diagram of the conveying mechanism in this invention.

[0017] In the diagram: 100, drill bit; 200, sampling mechanism; 210, housing; 220, connecting rod; 230, guide tube; 240, universal joint; 241, moving part; 2412, clasp; 242, ball; 2422, slot; 243, insertion rod; 2432, positioning rod; 250, sampling tube; 251, support rod; 260, connecting block; 261, pneumatic push rod; 300, adjusting mechanism; 310, ring; 311, bracket; 3 20. Cylinder; 321. Clamping plate; 330. Rotating ring; 331. Hydraulic cylinder; 340. Guide ring; 341. Rotating rod; 342. Slide rail; 400. Conveying mechanism; 410. Positioning block; 420. Gear ring; 430. Support arm; 431. Drive box; 440. Rotating shaft; 441. Plate; 442. Electric push rod; 443. U-shaped rod; 444. Abutment roller; 450. Moving rod; 460. I-beam; 470. Electric roller. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-9 In this embodiment of the invention, a geological exploration stratified sampling device includes a drill bit 100, a plurality of sampling mechanisms 200 arranged vertically in sequence, an adjustment mechanism 300 for adjusting the positional relationship between two adjacent sampling mechanisms 200, and a conveying mechanism 400 for conveying the plurality of sampling mechanisms 200 into a silt layer. The plurality of sampling mechanisms 200 are all located above the drill bit 100. Each sampling mechanism 200 includes a housing 210, and connecting rods 220 are fixedly connected to both the top and bottom ends of the housing 210. The upper connecting rod 220 is fixedly connected to a universal joint 240, and the lower connecting rod 220 is fixedly connected to a universal joint 240. A threaded hole is provided at the bottom of the rod 220. A screw is fixedly connected to the top of the universal joint 240 and the top of the drill bit 100. The screw is screwed into the threaded hole. A guide tube 230 is fixedly connected to the outer wall of the housing 210. The inside of the guide tube 230 is connected to the inside of the housing 210. A sampling tube 250 is slidably sleeved inside the guide tube 230. The sampling tube 250 has an open structure at one end. An air pump is provided at the other end of the sampling tube 250. The air pump is connected to the sampling tube 250 through a hose. An adjustment mechanism 300 is provided in conjunction with multiple sampling mechanisms 200. A conveying mechanism 400 is provided in conjunction with the adjustment mechanism 300.

[0020] Specifically, by selecting an appropriate number of sampling mechanisms 200 according to the required sampling depth, the screw on the universal joint 240 of any sampling mechanism 200 can be screwed into the connecting rod 220 of the upper sampling mechanism 200, and the connecting rod 220 of the lower sampling mechanism 200 can be screwed into the screw on the drill bit 100. Then, the relative positional relationship between two adjacent sampling mechanisms 200 is adjusted by relying on the universal joint 240 between two adjacent sampling mechanisms 200, so that multiple sampling mechanisms 200 form an arc or spiral structure. Then, the multiple sampling mechanisms 200 are sent into the silt layer by the conveying mechanism 400. When sent into the silt layer, if the multiple sampling mechanisms 200 form an arc or spiral structure, then the conveying path is the same as the arc or spiral structure formed by the sampling mechanisms 200, entering the silt layer in an arc or spiral path, so that multiple sampling mechanisms 200 enter the silt layer. When the sampling mechanism is in the mud layer, it is not easy to cause significant disturbance to the silt layer. It will only disturb the silt layer near the entry path. After multiple sampling mechanisms 200 enter the silt layer, they will naturally be distributed at different heights in the silt layer. Then, the sampling cylinders 250 on the multiple sampling mechanisms 200 will be pushed out, so that the opening of the sampling cylinder 250 is away from the silt layer near the entry path. Then, the air pump will be started to draw silt near the opening of the sampling cylinder 250, thereby drawing samples from silt at different heights. By forming an arc or spiral structure with multiple sampling mechanisms 200 to drill into the silt layer, obstacles in the silt layer can be avoided, and the sampling range can be expanded. The air pump can be installed inside the housing 210 for remote control, or it can be installed on the ground and the suction can be carried out by passing a hose through the housing 210. The air pump is equipped with a control system. The air pump and its control system are existing technologies and will not be described in detail here. Example 1

[0021] like Figure 5 As shown, in this embodiment, a connecting block 260 is fixedly connected to the inner side of the housing 210, and a pneumatic push rod 261 is rotatably connected to the connecting block 260. Two support rods 251 are fixedly connected to the other end of the sampling cylinder 250, and the movable end of the pneumatic push rod 261 is rotatably connected to one end of the two support rods 251. In this embodiment, the pneumatic push rod 261 is a piston rod. The stroke of the pneumatic push rod 261 can be controlled by filling or extracting compressed air into it. The pneumatic push rod 261 is inflated by an air compressor and evacuated by a suction pump. Both the air compressor and the suction pump are located on the ground and are connected to the pneumatic push rod 261 through a three-way fitting conduit. Both the air compressor and the suction pump are equipped with control systems. The air compressor, the suction pump, and their supporting systems are all existing technologies and will not be described in detail here. When the movable end of the pneumatic push rod 261 extends, it pushes the sampling cylinder 250 to slide along the guide tube 230, causing the sampling cylinder 250 to move out of the housing 210 and into the sludge layer. When the movable end of the pneumatic push rod 261 returns to its original position, it drives the sampling cylinder 250 back into the housing 210.

[0022] like Figures 3-4 and Figure 8 As shown, in this embodiment, the adjusting mechanism 300 includes a ring body 310, a rotating ring 330, and a guide ring 340. Multiple supports 311 are fixedly connected to the outer wall of the ring body 310. The inner wall of the rotating ring 330 is rotatably sleeved with the outer wall of the ring body 310. A hydraulic cylinder 331 is fixedly connected to the outer wall of the rotating ring 330. The guide ring 340 is located below the rotating ring 330. A rotating rod 341 is rotatably connected to the outer wall of the guide ring 340, and the top end of the rotating rod 341 is fixedly connected to the outer wall of the rotating ring 330. A slide rail 342 is fixedly connected to the outer wall of the guide ring 340, and a slider is slidably connected inside the slide rail 342. The movable end of the hydraulic cylinder 331 is rotatably connected to the slider. The universal joint 240 includes two staggered movable parts 241, a ball 242, and four insert rods 243. The lower movable part 241 is fixedly connected to the adjacent connecting rod 220, and the upper movable part 241... 1. It is fixedly connected to the adjacent screw. Both movable parts 241 are U-shaped, and both arms of the two movable parts 241 are provided with locking holes 2412. The ball 242 is located between the two movable parts 241. Four rods are fixedly connected to the outer spherical surface of the ball 242, and the four rods are respectively rotatably sleeved in the four locking holes 2412. One end of each of the four rods is provided with a locking groove 2422. Four insert rods 243 are respectively movably inserted into the four locking holes 2412. One end of each of the four insert rods 243 is fixedly connected with a positioning rod 2432, and the four positioning rods 2432 are respectively movably inserted into the four locking grooves 2422. The ring body 310 is equipped with multiple cylinders 320, and the multiple cylinders 320 are fixedly connected to the top of the adjacent bracket 311. The multiple cylinders 320 are distributed in a circle with the center of the ring body 310 as the center, and the movable ends of the multiple cylinders 320 are fixedly connected with clamping plates 321.

[0023] In specific implementation, the hydraulic cylinder 331 is equipped with a control system, and the multiple cylinders 320 are equipped with a synchronization control system. The hydraulic cylinder 331 and its control system, as well as the multiple cylinders 320 and their synchronization control system, are existing technologies and will not be elaborated upon here. After connecting two adjacent sampling mechanisms 200, the multiple cylinders 320, in conjunction with the clamping plate 321, can clamp and fix the upper housing 210, and position the lower housing 210 inside the guide ring 340. The rotating rod 341 and the hydraulic cylinder 331 are located on opposite sides of the guide ring 340. By rotating the rotating ring 330, the guide ring 340 is driven to rotate synchronously, thereby adjusting the specific position of the rotating rod 341. Then, the hydraulic cylinder 331 is activated to abut the slider. The slider slides within the slide rail 342. Based on the positional change of the slider within the slide rail 342, the guide ring 340 naturally rotates and tilts around the hinge point with the rotating rod 341 as the axis. This causes the guide ring 340 to drive the lower housing 210 to deflect synchronously. The lower housing 210 will naturally cause the relative positional relationship of the two movable parts 241 on the universal joint 240 to change. Then, the insertion rod 243 and the positioning rod 2432 are manually inserted into the locking hole 2412 and the locking groove 2422 on the universal joint 240 to fix the relative positional relationship of the two movable parts 241 on the universal joint 240, thereby fixing the relative position between the two adjacent housings 210. The deflection direction of the guide ring 340 can be changed according to the specific position of the rotating rod 341.

[0024] like Figure 6 and Figure 9 As shown, in this embodiment, the conveying mechanism 400 includes multiple positioning blocks 410, a toothed ring 420, two support arms 430, and two rotating shafts 440. Each positioning block 410 corresponds one-to-one with a plurality of supports 311, and each positioning block 410 is fixedly connected to an adjacent support 311. The toothed ring 420 is rotatably sleeved between the multiple positioning blocks 410. Two connecting shafts are fixedly connected to the outer wall of the toothed ring 420. The top ends of the two support arms 430 are rotatably connected to the two connecting shafts, and one end of each of the two rotating shafts 440... The two shafts 440 are rotatably connected to the bottom ends of the two support arms 430 respectively. The other ends of the two shafts 440 are fixedly connected to the plates 441, and the two plates 441 are fixedly connected to the U-shaped rod 443. The U-shaped rod 443 is rotatably connected to the roller 444 on one side. The two ends of the bottom end of one support arm 430 are fixedly connected to the drive box 431, and the two drive boxes 431 are equipped with swing cylinders. The output ends of the two swing cylinders pass through the support arm 430, and the output ends of the two swing cylinders are fixedly connected to the shaft 440 and the connecting shaft respectively.

[0025] In specific implementation, the two swing cylinders are each equipped with a control system. The swing cylinders and their control systems are existing technologies and will not be described in detail here. The sampling mechanism 200, which has a fixed relative position, passes through the conveying mechanism 400 in sequence, so that the housing 210 is supported by the abutment roller 444. The two support arms 430 can be rotated synchronously by rotating the gear ring 420 to adjust the specific position of the two support arms 430. The upper swing cylinder can be activated to drive the support arm 430 to deflect, and the lower swing cylinder can be activated to drive the two plates 441 and the abutment roller 444 to deflect, so that the abutment roller 444 is adapted to the housing 210 it passes through, and the abutment roller 444 and the housing 210 it passes through are in a vertical distribution.

[0026] like Figure 9 As shown, in this embodiment, multiple sleeve holes are provided on one side of each of the two plates 441, and movable rods 450 are slidably sleeved inside each sleeve hole. An I-beam plate 460 is provided between two parallel movable rods 450 located on the two plates 441. An electric roller 470 is provided between the I-beam plate 460 and each of the two adjacent movable rods 450. Rotating seats are fixedly connected to both ends of the electric roller 470. One rotating seat is rotatably connected to one end of an adjacent movable rod 450, and the other rotating seat is rotatably connected to an adjacent I-beam plate 460. Electric push rods 442 are fixedly connected to one side of each of the two plates 441, and connecting strips are fixedly connected to the movable ends of the two electric push rods 442. The connecting strips are fixedly connected to the multiple adjacent movable rods 450.

[0027] In specific implementation, multiple electric rollers 470 are equipped with a synchronous control system, and two electric push rods 442 are also equipped with a synchronous control system. The electric rollers 470, electric push rods 442, and their synchronous control systems are all existing technologies and will not be described in detail here. When the housing 210 is supported by the abutment roller 444, the two electric push rods 442 can be activated to pull the moving rod 450 to move, so that the multiple electric rollers 470 press the housing 210 onto the abutment roller 444. Then, the electric rollers 470 are activated to drive the housing 210 to move, thereby causing the housing 210 to be moved by the electric rollers 470, so that the other sampling mechanisms 200 and drill bits 100 below the housing 210 are pushed into the silt layer. When each housing 210 passes through the conveying mechanism 400, the conveying mechanism 400 will adaptively change its position according to the distribution of the housing 210, and then the electric rollers 470 are used to drive the housing 210 to move, so that the other sampling mechanisms 200 and drill bits 100 below the housing 210 can drill into the silt layer.

[0028] A sampling method for a geological exploration stratified sampling device specifically includes the following steps: Step 1: Select an appropriate number of sampling mechanisms 200 according to the sampling depth and sampling path, and then manually splice multiple sampling mechanisms 200 in sequence; Step 2: Adjust the relative position of the two adjacent sampling mechanisms 200 using the adjustment mechanism 300, and then fix them manually; Step 3: Use the conveying mechanism 400 to send multiple sampling mechanisms 200, which are adjusted to a suitable shape, into the silt layer. When sending them into the silt layer, the entry path of the multiple sampling mechanisms 200 is the path formed by the shapes of the multiple sampling mechanisms 200. Then, use the sampling mechanisms 200 to sample the silt layer at different heights. Example 2

[0029] Based on Embodiment 1, two drive motors are provided to facilitate the adjustment of the rotation angle of the rotating ring 330 and the gear ring 420.

[0030] like Figures 6-7 As shown, in this embodiment, two motor housings are fixedly connected to the top of a bracket 311, and a drive motor is installed inside each of the two motor housings. Gears are fixedly connected to the motor shafts of the two drive motors. Multiple gear teeth are fixedly connected to the outer wall of the rotating ring 330, and the two gears mesh with the gear teeth on the rotating ring 330 and the gear ring 420, respectively.

[0031] In practice, each of the two drive motors is equipped with a control system. The drive motors and their control systems are existing technologies and will not be described in detail here. By starting the two drive motors, the rotating ring 330 or the gear ring 420 can be rotated through the gears, thereby adjusting the rotation angle of the rotating ring 330 and the gear ring 420. Furthermore, the two drive motors are equipped with electromagnetic brakes, which can self-lock the motor shaft to stop rotating when the drive motors are not started.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A geological exploration stratified sampling device, characterized in that, include: Drill bit (100); Multiple sampling mechanisms (200) arranged vertically in sequence are located above the drill bit (100). Each sampling mechanism (200) includes a housing (210), and connecting rods (220) are fixedly connected to both the top and bottom ends of the housing (210). The upper connecting rod (220) is fixedly connected to a universal joint (240), and the lower connecting rod (220) has a threaded hole at its bottom end. The top of the universal joint (240) and the top of the drill bit (100) are both fixedly connected to a screw, which is screwed into the threaded hole. A guide tube (230) is fixedly connected to the outer wall of the housing (210), and the inside of the guide tube (230) is connected to the inside of the housing (210). A sampling tube (250) is slidably sleeved inside the guide tube (230), and the sampling tube (250) has an open structure at one end. An air pump is provided at the other end of the sampling tube (250), and the air pump is connected to the sampling tube (250) through a hose. An adjustment mechanism (300) is provided in conjunction with a plurality of the sampling mechanisms (200); The conveying mechanism (400) is configured in conjunction with the adjusting mechanism (300).

2. The geological exploration stratified sampling device according to claim 1, characterized in that, A connecting block (260) is fixedly connected to the inner side of the housing (210), and a pneumatic push rod (261) is rotatably connected to the connecting block (260). Two support rods (251) are fixedly connected to the other end of the sampling cylinder (250), and the movable end of the pneumatic push rod (261) is rotatably connected to one end of the two support rods (251).

3. The geological exploration stratified sampling device according to claim 1 or 2, characterized in that, The universal joint (240) includes: Two staggered movable parts (241), wherein the lower movable part (241) is fixedly connected to the adjacent connecting rod (220), and the upper movable part (241) is fixedly connected to the adjacent screw. Both movable parts (241) are U-shaped, and both arms of the two movable parts (241) are provided with locking holes (2412). The sphere (242) is located between the two movable parts (241). Four rods are fixedly connected to the outer spherical surface of the sphere (242), and the four rods are respectively rotated and sleeved inside the four locking holes (2412). A locking groove (2422) is opened at one end of each of the four rods. Four insert rods (243) are movably inserted into four slots (2412), and one end of each of the four insert rods (243) is fixedly connected to a positioning rod (2432), and the four positioning rods (2432) are movably inserted into four slots (2422).

4. The geological exploration stratified sampling device according to claim 3, characterized in that, The adjustment mechanism (300) includes: The outer wall of the ring (310) is fixedly connected with multiple brackets (311); The inner wall of the rotating ring (330) is rotatably sleeved with the outer wall of the ring body (310), and a hydraulic cylinder (331) is fixedly connected to the outer wall of the rotating ring (330). A guide ring (340) is located below the rotating ring (330). A rotating rod (341) is rotatably connected to the outer wall of the guide ring (340), and the top end of the rotating rod (341) is fixedly connected to the outer wall of the rotating ring (330). A slide rail (342) is fixedly connected to the outer wall of the guide ring (340), and a slider is slidably connected inside the slide rail (342). The movable end of the hydraulic cylinder (331) is rotatably connected to the slider.

5. The geological exploration stratified sampling device according to claim 4, characterized in that, The ring body (310) is equipped with multiple cylinders (320), and the multiple cylinders (320) are fixedly connected to the top of the adjacent bracket (311). The multiple cylinders (320) are distributed in a circle with the center of the ring body (310) as the center, and the movable end of the multiple cylinders (320) is fixedly connected to a clamp (321).

6. The geological exploration stratified sampling device according to claim 4, characterized in that, The conveying mechanism (400) includes: Multiple positioning blocks (410) correspond one-to-one with multiple brackets (311), and each of the multiple positioning blocks (410) is fixedly connected to the adjacent bracket (311); A toothed ring (420) is rotatably sleeved between multiple positioning blocks (410), and two connecting shafts are fixedly connected to the outer side wall of the toothed ring (420); Two support arms (430) are rotatably connected at their top ends to the two connecting shafts respectively; Two rotating shafts (440) are rotatably connected at one end to the bottom of the two support arms (430), and the other end of the two rotating shafts (440) is fixedly connected to a plate (441). A U-shaped rod (443) is fixedly connected between the two plates (441), and a roller (444) is rotatably connected to one side of the U-shaped rod (443).

7. The geological exploration stratified sampling device according to claim 6, characterized in that, A drive box (431) is fixedly connected to both ends of the bottom of a support arm (430), and a swing cylinder is provided inside the two drive boxes (431). The output ends of the two swing cylinders pass through the support arm (430), and the output ends of the two swing cylinders are fixedly connected to the rotating shaft (440) and the connecting shaft, respectively.

8. The geological exploration stratified sampling device according to claim 7, characterized in that, Multiple sleeve holes are provided on one side of each of the two plates (441), and a moving rod (450) is slidably sleeved inside each sleeve hole. An I-beam (460) is provided between two moving rods (450) located on the two plates (441) and parallel to each other. An electric roller (470) is provided between the I-beam (460) and the two adjacent moving rods (450). Rotating seats are fixedly connected to both ends of the electric roller (470). One rotating seat is rotatably connected to one end of the adjacent moving rod (450), and the other rotating seat is rotatably connected to the adjacent I-beam (460). An electric push rod (442) is fixedly connected to one side of each of the two plates (441), and a connecting strip is fixedly connected to the movable end of each of the two electric push rods (442). The connecting strip is fixedly connected to the multiple adjacent moving rods (450).

9. The geological exploration stratified sampling device according to claim 8, characterized in that, Two motor housings are fixedly connected to the top of a bracket (311), and a drive motor is installed inside each of the two motor housings. Gears are fixedly connected to the motor shafts of the two drive motors. Multiple gear teeth are fixedly connected to the outer wall of the rotating ring (330), and the two gears mesh with the gear teeth on the rotating ring (330) and the gear ring (420) respectively.

10. The sampling method of the geological exploration stratified sampling device according to claim 9, characterized in that, Specifically, the following steps are included: Step 1: Select an appropriate number of sampling mechanisms (200) according to the sampling depth and sampling path, and then manually splice multiple sampling mechanisms (200) in sequence; Step 2: Adjust the relative positional relationship between the two adjacent sampling mechanisms (200) using the adjustment mechanism (300), and then fix them manually; Step 3: Use the conveying mechanism (400) to send multiple sampling mechanisms (200) adjusted to a suitable shape into the silt layer. When sending into the silt layer, the entry path of the multiple sampling mechanisms (200) is the path formed by the shape of the multiple sampling mechanisms (200). Then, use the sampling mechanism (200) to sample the silt layer at different heights.

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