Sampling equipment for highway geological survey
By designing the highway geological survey and sampling equipment for automatic sampling modules and excavation modules, the problem of inconsistent soil sliding and sampling depth angles is solved, and the consistency and accuracy of soil sampling is achieved, which is especially suitable for sampling deep soil.
Patent Information
- Application Number
- CN202521333733.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2035-06-27
AI Technical Summary
Existing highway geological survey and sampling equipment are prone to cause soil to slide during the sampling process, and it is difficult to ensure the consistency of the depth and angle of each sampling, resulting in inconsistent sampling results, affecting the accuracy of geological survey.
A sampling device including an automatic sampling module and a digging module is designed to sandwich the soil through a reverse rotation of the drive shovel, combine the lifting beam and the extension rod to ensure consistency in sampling depth and angle, and to achieve deep sampling by quick connection modules.
Effectively prevent soil from sliding, ensure the consistency and accuracy of sampling results, improve sampling efficiency and accuracy, and is especially suitable for soil sampling in deeper locations.
Smart Images
Figure CN223179812U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of geological exploration sampling, in particular to a sampling device for highway geological exploration. Background Art
[0002] Geological exploration is the basis for highway engineering design. By conducting detailed exploration and analysis of the geological conditions at the project site, reliable geological data and parameters can be provided for the design. These data directly affect the stability, safety, and economy of the project. The results of geological exploration help engineers scientifically select design schemes, determine reasonable foundation treatment measures, and ensure the safety and reliability of the project.
[0003] In the existing sampling operations for highway geological exploration, workers often use a Luoyang shovel for soil sampling. By inserting the Luoyang shovel into the soil, rotating it, and then pulling it out, the soil deep in the ground can be brought out for sampling and exploration. However, the shape of the Luoyang shovel is fixed, and when bringing out the soil, it completely relies on the friction force of the shovel surface. Sometimes the soil will slip out of the shovel, resulting in sampling failure. Moreover, when conducting soil sampling operations at deeper positions, a very long wooden stick needs to be replaced. The sampling is not easy to operate, very laborious, and the replacement process is rather troublesome. At the same time, because the sampling operation relies on manpower, the depth and angle of each time the soil is entered cannot be fixed, and the sampling results at the same point are not coherent enough, which will cause deviations and errors in the geological layout results of geological exploration. Summary of the Invention
[0004] The technical problem to be solved by the utility model is to provide a sampling device for highway geological exploration, which can, when pulled out, through reverse rotation, make the shovel blades clamp the sampled soil to prevent the soil from slipping. At the same time, a tunneling module and an extension rod are provided, which can ensure that the depth and angle of each time the soil is tunneled are consistent, and automatically replace manpower for sampling operations.
[0005] To solve the above technical problem, the technical solution provided by the utility model is as follows:
[0006] A sampling device for highway geological exploration, comprising:
[0007] An automatic sampling module, including a transmission rod, a fixed shovel blade, and a movable shovel blade. The fixed shovel blade and the movable shovel blade are respectively arc-shaped plate structures arranged vertically, and the movable shovel blade is slidably arranged on the fixed shovel blade through a sliding clamping module. The transmission rod is rotatably arranged at the top of the fixed shovel blade and is connected to the fixed shovel blade through a positive rotation self-locking module and a reverse rotation clamping module;
[0008] A vehicle frame, provided with a gantry. A lifting beam is slidably arranged on the gantry. A tunneling module is arranged on the lifting beam. The tunneling module is connected to the automatic sampling module through an extension rod. The automatic sampling module tunnels into the soil through the tunneling module.
[0009] Furthermore, a connecting seat is provided on the top of the fixed shovel blade, and the sliding clamping module includes a sliding block that slides back and forth in the connecting seat and a flip block hinged on the sliding block, a limiting groove is provided on the flip block, and a limiting plug plate that is plugged into the limiting groove is provided on the connecting seat, and the movable shovel blade is fixed on the flip block.
[0010] Furthermore, the anti-rotation clamping module includes a gear arranged on the transmission rod and a U-shaped rack arranged in the connecting seat for sliding left and right. The two side rods of the U-shaped rack are arranged on both sides of the gear, and one side rod is engaged with the gear. A switching slide is provided in the sliding block, and adsorption blocks are respectively provided at the left and right ends of the switching slide. A switching block connected to the U-shaped rack is provided in the switching slide for sliding left and right, and the two ends of the switching block are respectively adsorbed with the corresponding adsorption blocks.
[0011] Furthermore, the forward-rotating self-locking module includes a ratchet wheel provided on the transmission rod, a pawl rotatably provided on the connecting seat and engaged with the ratchet wheel, and a self-locking spring is provided between the pawl and the connecting seat.
[0012] Furthermore, a quick connection module is provided on the extension rod, including a connecting rod provided at one end of the extension rod and a connecting sleeve at the other end. The connecting rod and the transmission rod are respectively plugged into the prismatic grooves provided at the bottom of the connecting sleeve, and are respectively rotated to provide connecting wheels that cooperate with the connecting sleeve threads.
[0013] Furthermore, the tunneling module includes a tunneling shell and a tunneling motor arranged on the tunneling shell. A tunneling sleeve is uprightly arranged in the tunneling shell, and the inner thread of the tunneling sleeve is matched with a tunneling screw. A spline rod is provided in the tunneling screw for sliding up and down, and the rotating shaft of the spline rod is connected to the driving shaft of the tunneling motor. A transmission joint is provided at the bottom of the tunneling screw, and a protective sleeve movably sleeved on the outside of the tunneling sleeve is provided on the transmission joint. The transmission joint is plugged into the top of the connecting rod and threadedly matched with the connecting wheel.
[0014] The advantages of this utility model compared with the prior art are:
[0015] 1. The utility model is provided with an automatic sampling module. After the excavation module rotates and excavates the soil, the movable shovel and the fixed shovel are automatically controlled to rotate in the opposite direction to clamp the sampled soil between them, so as to prevent the sampled soil from slipping when the automatic sampling module is pulled out, resulting in sampling failure. The use is more convenient and reliable.
[0016] 2. The utility model is provided with a tunneling module and a lifting beam. Through the cooperation of the two, it can ensure that the depth, squareness and angle of the soil excavated by the automatic sampling module are consistent, so that the multiple sampling results of the same point are more consistent. After the connection and combination, the sampling results are more accurate and effective, which is conducive to the accuracy of geological survey operations;
[0017] 3. The tunneling module and the automatic sampling module of the present utility model are connected by an extension rod, and different extension rods can be connected end to end through a quick connection module for extension, which is convenient for soil sampling operations at deeper depths. Moreover, the connection method of the quick connection module is simple and convenient, with stronger sampling ability and higher sampling efficiency. Brief Description of the Drawings
[0018] Figure 1 It is a schematic structural diagram of the present utility model.
[0019] Figure 2 It is an expanded schematic structural diagram of the present utility model.
[0020] Figure 3 It is a schematic structural diagram of the gantry part of the present utility model.
[0021] Figure 4 It is a schematic cross-sectional view of the tunneling module of the present utility model.
[0022] Figure 5 It is a schematic cross-sectional view of the quick connection module of the present utility model.
[0023] Figure 6 It is a schematic structural diagram of the automatic sampling module of the present utility model.
[0024] Figure 7 It is a schematic cross-sectional view of the positive rotation self-locking module of the present utility model.
[0025] Figure 8 It is a schematic cross-sectional view of the reverse rotation clamping module of the present utility model.
[0026] Figure 9 It is a schematic cross-sectional view of the fixed-point fixing module of the present utility model.
[0027] As shown in the figure: 1. Frame, 11. Cross beam, 12. Roller, 13. Cargo box, 14. Support rod, 2. Gantry, 21. Lifting beam, 22. Lifting module, 221. Lifting screw rod, 222. Lifting motor, 23. Diagonal strut, 3. Boring module, 31. Boring motor, 32. Boring housing, 33. Boring screw rod, 34. Spline rod, 35. Boring sleeve, 36. Protective sleeve, 37. Transmission joint, 4. Extension rod, 41. Quick connection module, 411. Connecting rod, 412. Prismatic groove, 413. Connecting wheel, 414. Connecting socket, 5. Automatic sampling module, 51. Fixed shovel blade, 511. Connecting seat, 52. Movable shovel blade, 53. Transmission rod, 54. Positive rotation self-locking module, 541. Ratchet wheel, 542. Pawl, 543. Self-locking spring, 55. Reverse rotation clamping module, 551. Gear, 552. U-shaped rack, 553. Switching chute, 554. Adsorption block, 555. Switching block, 56. Sliding clamping module, 561. Sliding block, 562. Flipping block, 563. Limit insertion plate, 564. Limit groove, 6. Fixed point fixing module, 61. Rotary drilling module, 611. Drilling sleeve, 612. Drilling screw rod, 613. Handwheel, 614. Outer sleeve, 62. Pressing and positioning module, 621. Pulling spring, 622. T-shaped rod, 623. Pressing pull rod, 624. Pedal, 625. Pressing abutting block, 63. Soil drilling module, 631. Drill rod, 632. Soil drilling shovel blade, 7. Positioning module, 71. Positioning ring, 72. Fixed rod. Detailed implementation mode
[0028] The following further elaborates on the present utility model in conjunction with the attached drawings.
[0029] In conjunction with the attached Figure 1 and the attached Figure 2 As shown, a sampling device for highway geological exploration includes a frame-structured vehicle frame 1, with a top-open cargo box 13 respectively arranged in the frame structures on its left and right sides, and the two are connected by a cross beam 11 arranged at the rear, and rollers 12 are arranged at the bottom. A support rod 14 is horizontally arranged front and back on the front side of the cross beam 11. A gantry 2 is vertically arranged in the middle of the vehicle frame 1. A lifting beam 21 is slidably arranged on the gantry 2, and the lifting beam 21 moves up and down through a lifting module 22 arranged on the gantry 2. Diagonal struts 23 are respectively arranged on the left and right sides of the gantry 2 and are connected to the vehicle frame 1 through the diagonal struts 23. A fixed point fixing module 6 is arranged on the support rod 14, a boring module 3 is arranged on the lifting beam 21, and an extension rod 4 and an automatic sampling module 5 are arranged at the bottom of the boring module 3.
[0030] In the above description, the front side of the vehicle frame 1 is open, facilitating the user to enter for the installation and replacement of the extension rod 4 and the automatic sampling module 5. The two side cargo boxes 13 are convenient for placing the extension rod 4, the automatic sampling module 5 and soil sampling. After the new type is pushed to the designated sampling position, the vehicle frame 1 is fixed above the sampling point through the fixed-point fixing module 6. After the automatic sampling module 5 is installed on the tunneling module 3 through the extension rod 4, the lifting beam 21 is controlled to move downward by the lifting module 22, and the automatic sampling module 5 abuts against the soil. The tunneling module 3 is started, so that the automatic sampling module 5 rotates downward and tunnels a certain distance. Then, the tunneling module 3 runs in the reverse direction, so that the automatic sampling module 5 leaves the soil and brings out the soil sample. After the lifting beam 21 is raised, the automatic sampling module 5 is unloaded and replaced. The above operations are repeated, and the number of extension rods 4 is increased as needed during the process, so as to obtain multi-segment continuous soil samples of the geological conditions at the same point.
[0031] Combined with the attached Figure 2 , attached Figure 3 As shown, a sampling positioning module 7 is provided at the bottom of the gantry 2, including a positioning ring 71 and a fixing rod 72. The positioning ring 71 is horizontally arranged directly below the automatic sampling module 5 and is connected to both ends of the bottom of the gantry 2 through the fixing rod 72. The lifting module 22 is arranged on one side of the gantry 2, including a lifting motor 222 arranged at the bottom of the gantry 2 and a lifting screw rod 221 vertically arranged inside the rod on one side of the gantry 2. One end of the lifting screw rod 221 is rotatably arranged on the gantry 2, and the other end is connected to the drive shaft of the lifting motor 222, and one end of the lifting beam 21 is threadedly sleeved on the lifting screw rod 221.
[0032] In the above description, the positioning ring 71 is arranged directly below the automatic sampling module 5. The specific position of the sampling point can be determined through the positioning ring 71, making the sampling data more accurate and the positioning more convenient. The lifting beam 21 is driven by the lifting module 22. After the lifting motor 222 is started, the lifting screw rod 221 rotates to drive the lifting beam 21 to move up and down.
[0033] Combined with the attached Figure 5 , attached Figure 6As shown, the automatic sampling module 5 includes a transmission rod 53, a fixed shovel blade 51 and a movable shovel blade 52. The fixed shovel blade 51 and the movable shovel blade 52 are respectively arc-shaped plate structures arranged vertically. A connecting seat 511 is provided at the top of the fixed shovel blade 51. The movable shovel blade 52 is slidably arranged on the connecting seat 511 through a sliding clamping module 56. The transmission rod 53 is rotatably arranged at the top of the fixed shovel blade 51 and is connected to the fixed shovel blade 51 through a positive rotation self-locking module 54 and a reverse rotation clamping module 55. After the transmission rod 53 rotates forward, the fixed shovel blade 51 and the movable shovel blade 52 are driven by the positive rotation self-locking module 54 to rotate synchronously, so as to enter the soil more conveniently. After the transmission rod 53 rotates backward, the movable shovel blade 52 is controlled by the reverse rotation clamping module 55 to slide towards the fixed shovel blade 51, so as to clamp the soil sampling between the two, preventing the sampled soil from slipping during the process of the automatic sampling module 5 withdrawing from the soil and remaining at the sampling point. Specifically:
[0034] Combined with the attached Figure 5 , attached Figure 6 , attached Figure 7 As shown, the sliding clamping module 56 includes a sliding block 561 slidably arranged back and forth in the connecting seat 511 and a turning block 562 hinged to the sliding block 561. A limiting groove 564 is provided on the turning block 562, and a limiting insertion plate 563 inserted and matched with the limiting groove 564 is provided on the connecting seat 511. The movable shovel blade 52 is fixed on the turning block 562.
[0035] In the above description, the movable shovel blade 52 is connected to the sliding block 561 slidably arranged back and forth in the connecting seat 511 through the turning block 562. After the limiting insertion plate 563 is inserted and matched in the limiting groove 564, the turning block 562 cannot turn and moves with the sliding block 561, so that the movable shovel blade 52 makes relative or opposite movements with the fixed shovel blade 51. And after the limiting insertion plate 563 is separated from the limiting groove 564, the movable shovel blade 52 follows the turning block 562 to turn around the hinge, so as to completely expose the soil sampling, facilitating the investigation and transfer thereof.
[0036] Combined with the attached Figure 5 , attached Figure 7 , attached Figure 8 As shown, the reverse rotation clamping module 55 includes a gear 551 arranged on the transmission rod 53 and a U-shaped rack 552 slidably arranged left and right in the connecting seat 511. The two side rods of the U-shaped rack 552 are respectively arranged on both sides of the gear 551, and the rack on the inner side of one of the side rods is meshed with the gear 551. A switching chute 553 is arranged in the sliding block 561, and magnetic adsorption blocks 554 are respectively arranged at the left and right ends of the switching chute 553. A switching block 555 connected to the U-shaped rack 552 is slidably arranged left and right in the switching chute 553, and both ends of the switching block 555 are made of a metal material adsorbed to the corresponding adsorption blocks 554.
[0037] In the above description, the toggle switch block 555 is toggled so that one end thereof is adsorbed to the corresponding adsorption block 554, and the racks on the same side of the U-shaped rack 552 are engaged with the gear 551. When the gear 551 rotates following the transmission rod 53, the slider 561 is pushed by the U-shaped rack 552, causing the moving shovel blade 52 and the fixed shovel blade 51 to move relatively or away from each other, thereby realizing the clamping and releasing of the sampled soil by the automatic sampling module 5.
[0038] Combined with the attached Figure 5 , attached Figure 7 , attached Figure 8 As shown, the positive rotation self-locking module 54 includes a ratchet wheel 541 provided on the transmission rod 53, a pawl 542 rotatably provided on the connecting seat 511 and engaged with the ratchet wheel 541, and a self-locking spring 543 provided between the pawl 542 and the connecting seat 511.
[0039] In the above description, after the transmission rod 53 rotates forward, the pawl 542 of the positive rotation self-locking module 54 is engaged with the ratchet wheel 541, thereby forming a lock and driving the connecting seat 511 to rotate synchronously, so that the fixed shovel blade 51 and the moving shovel blade 52 can more conveniently enter the soil. After the transmission rod 53 rotates reversely, the ratchet wheel 541 rotates freely, and the transmission rod 53 controls the moving shovel blade 52 to slide towards the fixed shovel blade 51 through the reverse rotation clamping module 55. Until the soil sampling between the two is completely clamped, the fixed shovel blade 51, the moving shovel blade 52 and the soil sampling are driven to rotate, thereby preventing the sampled soil from slipping during the process of the automatic sampling module 5 withdrawing from the soil and taking it out more completely.
[0040] Combined with the attached Figure 5 , attached Figure 6 As shown, a quick connection module 41 is provided on the extension rod 4, including a connecting rod 411 provided at one end of the extension rod 4 and a connecting socket 414 at the other end. The ends of the connecting rod 411 and the transmission rod 53 are both provided as hexagonal prism structures, and are both inserted and matched with the prism groove 412 provided at the bottom of the connecting socket 414. At the same time, connecting wheels 413 threadedly engaged with the connecting socket 414 are rotatably provided on the connecting rod 411 and the transmission rod 53 respectively.
[0041] In the above description, the transmission rod 53 and the extension rod 4 or between two extension rods 4 can be connected through the quick connection module 41. And only by inserting the transmission rod 53 or the connecting rod 411 into the prism groove 412 of another extension rod 4 and rotating the connecting wheel 413 to make it threadedly engaged with the connecting socket 414, the transmission rod 53 and the extension rod 4 or between two extension rods 4 can be connected. And after connection, the two are not affected by tensile force and torque, and the tensile force, pressure and torque are transmitted.
[0042] Combined with the attached Figure 3 , attached Figure 4 , attached Figure 5As shown in the figure, the tunneling module 3 includes a tunneling housing 32 and a tunneling motor 31 arranged on the tunneling housing 32. A tunneling sleeve 35 is vertically arranged inside the tunneling housing 32, and a tunneling screw 33 is in threaded fit with the inside of the tunneling sleeve 35. A spline rod 34 is slidably arranged up and down inside the tunneling screw 33, and the spline rod 34 is rotationally connected to the drive shaft of the tunneling motor 31. A transmission joint 37 is arranged at the bottom of the tunneling screw 33. A protective sleeve 36 is movably sleeved outside the tunneling sleeve 35. The protective sleeve 36 is slidably arranged inside the bottom wall of the tunneling housing 32 and is connected to the top of the transmission joint 37. The transmission joint 37 is in threaded fit with the connecting wheel 413, and a prism groove 412 for plugging and matching with the top of the connecting rod 411 is arranged at the bottom.
[0043] In the above description, the automatic sampling module 5 and the extension rod 4 can both be connected to the bottom of the tunneling module 3 through the transmission joint 37. After the connection is completed, start the tunneling motor 31 to make the spline rod 34 drive the tunneling screw 33 to rotate. Under the threaded fit with the tunneling sleeve 35, the tunneling screw 33 moves downward and drives the automatic sampling module 5 to move downward, so as to pass through the center of the positioning ring 71 and rotate in the soil for tunneling to take samples of the soil. After the tunneling motor 31 rotates in the reverse direction, it will drive the tunneling screw 33 to move upward, drive the transmission rod 53 to rotate in the reverse direction, make the automatic sampling module 5 clamp, and move upward to leave the soil and take out the sampled soil.
[0044] Combined with the attached Figure 1 、attached Figure 2 、attached Figure 9 As shown in the figure, the fixed-point fixing module 6 includes a rotary down-drilling module 61, a downward pressure positioning module 62 and a soil drilling module 63. The rotary down-drilling module 61 includes a down-drilling sleeve 611 vertically arranged at the front end of the support rod 14. A down-drilling screw 612 is arranged inside the down-drilling sleeve 611. The down-drilling screw 612 is in threaded fit with the top of the down-drilling sleeve 611 and is connected to the soil drilling module 63 at the lower end. A handwheel 613 is arranged at the upper end. An outer sleeve 614 is movably sleeved outside the down-drilling sleeve 611, and the top of the outer sleeve 614 is connected to the bottom of the handwheel 613.
[0045] Combined with the attached Figure 9 As shown in the figure, the downward pressure positioning module 62 includes a T-shaped rod 622 which is horizontally arranged. The front end is slidably arranged on the down-drilling screw 612, and a tension spring 621 is arranged between the T-shaped rod 622 and the bottom surface of the support rod 14. Downward pressure pull rods 623 are arranged at the bottoms of the left and right ends. Pedals 624 are respectively rotatably arranged at the bottoms of the downward pressure pull rods 623. The pedals 624 are horizontally arranged. A downward pressure abutting block 625 is arranged on the down-drilling sleeve 611 below the T-shaped rod 622. The soil drilling module 63 includes a drill rod 631 which is movably sleeved inside the down-drilling sleeve 611, is connected to the down-drilling screw 612 at the top, and is provided with a drill bit at the bottom. Drill soil shovels 632 are arranged on both sides of the drill bit, and the drill soil shovels 632 are arranged in a spiral and inclined shape.
[0046] In the above description, after rotating the pedals 624 on both sides to face the rear side, step on the pedals 624 to press the T-bar 622 downward and contact the top surface of the downward pressing block 625, thereby preventing the frame 1 from bouncing up, turn the hand wheel 613, and the lower drill screw 612 drives the drill rod 631 to rotate and move downward under the threaded cooperation with the lower drill sleeve 611, and the drill rod 631 drills into the soil. After the drilling shovel 632 rotates and cuts into the soil, the upper and lower surfaces respectively contact the soil together, leaving the pedals 624, and the pedals 624 are lifted under the action of the tension spring 621, and the frame 1 is firmly fixed to the ground through the drilling shovel 632.
[0047] In the specific implementation of this embodiment:
[0048] The present invention is used for highway geological survey and sampling: the present invention is pushed to the designated sampling position, and after the sampling position is determined by the positioning ring 71, the pedal 624 is stepped on and the hand wheel 613 is turned to make the soil drilling module 63 enter the soil, and the vehicle frame 1 is firmly fixed on the ground. The automatic sampling module 5 and the extension rod 4 are taken out from the cargo boxes 13 on both sides, and the automatic sampling module 5 and the extension rod 4 are loaded, unloaded and replaced from the front side of the gantry 2. After the installation is completed, the lifting beam 21 is controlled to move downward by the lifting module 22, and the bottom of the automatic sampling module 5 is against the soil, and the excavation module 3 is started. After the automatic sampling module 5 rotates downward and excavates a certain distance, the excavation module 3 is reversed to make the automatic sampling module 5 automatically clamp and leave the soil, thereby taking out the soil sample. After the lifting beam 21 is raised, the automatic sampling module 5 is removed and replaced, and the above operation is repeated. In the process, the number of extension rods 4 is increased as needed, so as to obtain multiple continuous soil samples of the same geological point.
[0049] Toggle the switch block 555 and manually rotate the transmission rod 53 to disengage the fixed shovel blade 51 and the movable shovel blade 52 until the limit plate 563 is separated from the limit groove 564, and the movable shovel blade 52 follows the flip block 562 to flip around the hinge, thereby completely exposing the soil sample and facilitating the investigation and transfer of the soil sample.
[0050] When the present invention is implemented, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.
Claims
1. A sampling device for highway geological exploration, characterized in that, Comprising: An automatic sampling module (5), including a transmission rod (53), a fixed shovel blade (51) and a movable shovel blade (52). The fixed shovel blade (51) and the movable shovel blade (52) are respectively arc-shaped plate structures arranged vertically. The movable shovel blade (52) is slidably arranged on the fixed shovel blade (51) through a sliding clamping module (56). The transmission rod (53) is rotatably arranged on the top of the fixed shovel blade (51) and is connected to the fixed shovel blade (51) through a positive rotation self-locking module (54) and a reverse rotation clamping module (55). A vehicle frame (1) is provided with a gantry (2). A lifting beam (21) is slidably arranged on the gantry (2). An excavation module (3) is arranged on the lifting beam (21). The excavation module (3) is connected to the automatic sampling module (5) through an extension rod (4). The automatic sampling module (5) excavates into the soil through the excavation module (3).
2. The sampling device for highway geological exploration according to claim 1, characterized in that: A connecting seat (511) is arranged on the top of the fixed shovel blade (51). The sliding clamping module (56) includes a sliding block (561) slidably arranged back and forth in the connecting seat (511) and a turning block (562) hinged to the sliding block (561). A limiting groove (564) is arranged on the turning block (562), and a limiting insertion plate (563) inserted and matched with the limiting groove (564) is arranged on the connecting seat (511). The movable shovel blade (52) is fixed on the turning block (562).
3. The sampling device for highway geological exploration according to claim 2, wherein: The reverse rotation clamping module (55) includes a gear (551) arranged on the transmission rod (53) and a U-shaped rack (552) slidably arranged left and right in the connecting seat (511). The two side rods of the U-shaped rack (552) are arranged on both sides of the gear (551), and one of the side rods is meshed with the gear (551). A switching chute (553) is arranged in the sliding block (561), and adsorption blocks (554) are respectively arranged at the left and right ends of the switching chute (553). A switching block (555) connected to the U-shaped rack (552) is slidably arranged left and right in the switching chute (553), and both ends of the switching block (555) are adsorbed to the corresponding adsorption blocks (554).
4. The sampling device for highway geological exploration according to claim 2, characterized in that: The positive rotation self-locking module (54) includes a ratchet (541) arranged on the transmission rod (53). A pawl (542) meshed with the ratchet (541) is rotatably arranged on the connecting seat (511), and a self-locking spring (543) is arranged between the pawl (542) and the connecting seat (511).
5. A sampling device for highway geological exploration according to claim 1, characterized in that: A quick connection module (41) is arranged on the extension rod (4), including a connecting rod (411) arranged at one end of the extension rod (4) and a connecting socket (414) arranged at the other end. The connecting rod (411) and the transmission rod (53) are respectively inserted and matched with a prism groove (412) arranged at the bottom of the connecting socket (414), and connecting wheels (413) threadedly matched with the connecting socket (414) are respectively rotatably arranged.
6. The sampling device for highway geological exploration according to claim 5, characterized in that: The tunneling module (3) includes a tunneling housing (32) and a tunneling motor (31) arranged on the tunneling housing (32). A tunneling sleeve (35) is vertically arranged inside the tunneling housing (32), and a tunneling screw (33) is in threaded fit with the tunneling sleeve (35). A spline rod (34) is arranged to slide up and down inside the tunneling screw (33), and the rotating shaft of the spline rod (34) is connected to the drive shaft of the tunneling motor (31). A transmission joint (37) is arranged at the bottom of the tunneling screw (33).
7. The sampling device for highway geological exploration according to claim 6, characterized in that: The transmission joint (37) is in plug-in fit with the top of the connecting rod (411) and in threaded fit with the connecting wheel (413).