A sampling machine for road geological survey

Abstract

The application discloses a sampling machine for road geological survey, and relates to the field of geological survey, which comprises a base placed on a supporting surface, a guide groove is formed in the middle of the base, a connecting cylinder is penetrated into the guide groove, the connecting cylinder is hollow, a sampling head is fixed to the lower end of the connecting cylinder, the sampling head is rotated into the soil to send the sample into the connecting cylinder, and an extension cylinder is connected to the upper part of the connecting cylinder and is designed in a hollow structure. The sampling machine for road geological survey can insert the sampling head into the soil through the rotation and downward movement of the connecting cylinder, the sample is sent into the connecting cylinder, the sample can be kept intact, the extension cylinder can be spliced and installed on the upper part of the connecting cylinder, the connecting cylinder can continuously move downward to sample at a deeper position, repeated sampling is not needed, the extension cylinder can be spliced, the sampling depth range is improved, and the functionality and use flexibility of the device are improved.

Description

Technical Field

[0001] This invention relates to the field of geological exploration technology, specifically to a sampling machine for road geological exploration. Background Technology

[0002] When carrying out road construction, geological surveys are particularly important. Geological surveys can provide geological information, which can then be used to design construction plans based on the geological conditions. Geological samples can be taken out before conducting geological surveys.

[0003] Prior art 1 (Chinese patent application number CN202220488442.5, published on December 9, 2022) discloses a soil and rock sampling device for urban road engineering geological exploration, comprising a frame, a hydraulic cylinder at the top of the frame, a disc on the hydraulic cylinder, a circular groove at the bottom of the disc, a square bar on the inner wall of the top of the circular groove, a housing in contact with the circular groove, a square groove at the top of the housing engaging with the square bar, a servo motor inside the housing, a sampling rod at the shaft end of the servo motor, an adjusting shaft rotatably connected to the square bar, two translation grooves on the side of the square bar, a translation bar slidingly contacting the translation groove, a connecting block on the side of the translation bar, two grooves at the top of the housing, a fastening groove on the side wall of the groove, and a fastener engaging with the fastening groove on the side of the connecting block. This application facilitates the switching of soil and rock sampling devices; Prior art 2 (Chinese patent application number CN202410662861.X, published on September 17, 2024) describes a soil testing sampler, comprising a hollow frame, a drive assembly, a drill bit, and a sampling cylinder assembly. The drive assembly is mounted on the hollow frame, the drill bit is positioned below the drive assembly, and the sampling cylinder assembly is positioned above the drill bit. The sampling cylinder assembly includes a lower cover and an upper outer cylinder. The system comprises a lower sampling unit and an upper expansion unit. The lower cover is fixedly mounted on the top of the drill bit, and the upper outer cylinder is fixedly mounted on the lower cover. The lower sampling unit is located inside the lower cover, and the upper expansion unit is located inside the upper outer cylinder. Through the coordinated design of the upper expansion unit and the lower sampling unit, before the sampling shovel performs deep soil sampling, the upper expansion unit can generate a pushing force on the surface soil around the sampling point, thereby pushing away the soil to prevent surface soil collapse and affecting the purity of the sampled soil.

[0004] Currently, when conducting geological sampling surveys, the sampling tube is used directly. However, the sampling depth is limited because the top of the sampling tube is closed. When sampling at deeper locations is required, the sample needs to be removed and the sampling operation repeated. This method is not convenient and directly damages the soil during sampling, which affects the integrity of the sample and makes it difficult to analyze the longitudinal section of the sample. Summary of the Invention

[0005] The purpose of this invention is to provide a sampling machine for road geological surveys, in order to solve the problem mentioned in the background art that when sampling is carried out in geological surveys, the sampling depth is limited due to the closed top of the sampling tube. When sampling samples at deeper locations is required, the sample needs to be taken out and the sampling operation needs to be repeated, which is not very convenient.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sampling machine for road geological survey, comprising a base placed on a support surface, a guide groove in the middle of the base, and a connecting cylinder penetrating through the guide groove, the connecting cylinder being hollow, and a sampling head fixed at the lower end of the connecting cylinder, the sampling head rotating to enter the soil and deliver the sample into the connecting cylinder, an extension cylinder connected above the connecting cylinder, the extension cylinder being hollow, and a docking mechanism provided between the extension cylinder and the connecting cylinder to connect the extension cylinder and the connecting cylinder, adjusting the soil penetration depth of the sampling head, a fixing seat provided on the outside of the connecting cylinder, a vertical control mechanism provided on the inside of the fixing seat to provide vertical driving force to the connecting cylinder on the outside of the connecting cylinder, and a rotating mechanism provided on the outside of the connecting cylinder to provide rotational power to the connecting cylinder.

[0007] To further optimize this technical solution, an enlarged head is provided on the outer side of the sampling head to provide downward space for the outside of the connecting cylinder.

[0008] To further optimize this technical solution, a support frame is fixed above the base, and the extension tube passes through the middle of the support frame to form a nested connection with the support frame.

[0009] To further optimize this technical solution, the docking mechanism includes a docking groove, a docking block, a locking block, a locking groove, a spring, and a release mechanism;

[0010] The mating groove is formed on the upper surface of the connecting sleeve and the extension sleeve;

[0011] The mating block is fixed on the lower surface of the extension tube, and the mating block and the mating groove form a concave-convex fit structure.

[0012] The locking block is set inside the docking block and between the docking blocks to form a telescopic structure, and the lower surface of the locking block is designed with an inclined structure.

[0013] A locking groove is formed inside the mating groove. The locking groove and the locking block are connected to lock the connection between the mating block and the mating groove.

[0014] The spring, fixedly connected to the locking block, provides thrust to the locking block;

[0015] The release mechanism is located on the outside of the locking block to control the movement of the locking block.

[0016] To further optimize this technical solution, the release mechanism includes a magnet and an attraction block. The magnet is fixed to the end of the locking block, and the attraction block is fixed inside the support frame. When the attraction block and the magnet are in opposition, the attraction magnet drives the locking block to move.

[0017] To further optimize this technical solution, the vertical control mechanism includes a toothed plate, a movable disc, a meshing gear, a first mounting shaft, and a first motor;

[0018] The toothed plate is fixed on the surface of the connecting cylinder and the extension cylinder, and the toothed plate on the surface of the extension cylinder has a vertically connected structure, with the toothed plate on the surface of the extension cylinder and the side toothed plate on the surface of the connecting cylinder mating with each other.

[0019] The movable plate is rotatably mounted inside the fixed base;

[0020] The meshing gear is located inside the movable disc, and a meshing connection is formed between the meshing gear and the toothed plate;

[0021] The first mounting shaft is fixed in the middle of the meshing gear, and a rotatable connection is formed between the first mounting shaft and the movable disk;

[0022] The first motor is connected to the first mounting shaft to provide driving force for the first mounting shaft.

[0023] To further optimize this technical solution, the toothed plate and the meshing gear are symmetrically arranged about the center line of the fixed seat. A second mounting shaft is provided on the right side of the first mounting shaft. The meshing gear is fixed on the surface of the second mounting shaft, and a synchronization mechanism is provided on the rear side of the second mounting shaft. The first mounting shaft drives the second mounting shaft to rotate through the synchronization mechanism.

[0024] To further optimize this technical solution, the synchronization mechanism includes a transmission gear, a reversing shaft, and a transmission mechanism;

[0025] The transmission gear is fixed to the rear side of the first mounting shaft;

[0026] The reversing shaft is rotatably mounted inside the movable disc, and the reversing shaft meshes with the first mounting shaft through a transmission gear;

[0027] The transmission mechanism is located on the outside of the reversing shaft, and the reversing shaft drives the second mounting shaft to rotate through the transmission mechanism.

[0028] To further optimize this technical solution, a conductive contact is fixed to the outer side of the movable disk, and a conductive ring is attached to the outer side of the conductive contact. The conductive contact and the conductive ring are electrically connected, and the conductive ring is fixed inside the fixed base in a ring structure.

[0029] To further optimize this technical solution, the rotating mechanism includes a transmission groove, a drive gear ring, a mounting block, a drive gear, and a second motor.

[0030] The transmission groove is formed on the surface of the connecting cylinder and the extension cylinder, and the transmission groove is arranged to run vertically through the surface of the extension cylinder.

[0031] The drive gear ring is fixedly connected to the movable disc, and the vertical center line of the drive gear coincides with the vertical center line of the connecting cylinder.

[0032] The mounting block is located on the outside of the transmission groove, and the mounting block and the transmission groove form an up-and-down sliding structure. The mounting block and the drive gear ring are fixedly connected.

[0033] The drive gear is positioned on the outside of the drive gear ring and forms a meshing connection with the drive gear ring;

[0034] The second motor is connected to the drive gear to provide rotational power to the drive gear.

[0035] Compared with the prior art, the beneficial effects of the present invention are:

[0036] The connecting cylinder rotates and moves downwards in conjunction with the sampling head, allowing it to be inserted into the soil. The sample enters the connecting cylinder and remains intact. Furthermore, extension cylinders can be spliced ​​and installed above the connecting cylinder, enabling it to continuously move downwards for sampling at deeper locations without the need for repeated sampling. Extension cylinders can also be spliced ​​to increase the sampling depth range, thereby enhancing the functionality and flexibility of the device.

[0037] The extension tube and the connecting tube are connected by a docking mechanism, which is convenient and quick to insert. After docking, it can maintain good stability. The extension tube can also be removed from the connecting tube, and the sample can be segmented to facilitate the exploration of samples at different depths.

[0038] The non-contact control method reduces the structural setup on the outside of the locking block. When the joint of the extension tube moves to the attraction block on the support frame, the locking block is automatically moved in coordination with its attraction effect, making it easy to disassemble the extension tube.

[0039] The rotating meshing gears and toothed plates provide vertical driving force for the connecting cylinder and the extension cylinder. After the extension cylinder is spliced, it can also provide continuous control. After sampling, it can also control the extension cylinder to move upward, making it easier to pull out the sample. At the same time, the meshing gears can rotate with the rotation of the connecting cylinder, so that the subsequent connecting cylinder can rotate stably.

[0040] The drive gear ring, in conjunction with the mounting block, provides rotational power to the connecting cylinder and the extension cylinder. The mounting block can slide within the transmission groove without affecting the subsequent vertical movement of the extension cylinder. Attached Figure Description

[0041] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0042] Figure 2 This is a schematic diagram of the structure of the present invention from a bottom view;

[0043] Figure 3 This is a top view of the support frame structure of the present invention;

[0044] Figure 4 This is a schematic diagram of the connection structure between the connecting cylinder and the extension cylinder of the present invention;

[0045] Figure 5 This is a schematic diagram of the three-dimensional structure of the extension tube of the present invention;

[0046] Figure 6 This is a top view of the fixed base structure of the present invention;

[0047] Figure 7 This is a schematic diagram of the connection structure between the docking block and the docking groove of the present invention;

[0048] Figure 8 This is a schematic diagram of the main cross-sectional structure of the fixing seat of the present invention;

[0049] Figure 9 This is a top view schematic diagram of the meshing gear structure of the present invention;

[0050] Figure 10 This is a schematic diagram of the three-dimensional structure of the drive gear ring of the present invention.

[0051] In the diagram: 1. Base; 2. Support frame; 3. Connecting cylinder; 4. Sampling head; 5. Expanding head; 6. Guide groove; 7. Fixed seat; 8. Extension cylinder; 9. Docking groove; 10. Docking block; 11. Locking block; 12. Locking groove; 13. Spring; 14. Magnet; 15. Attraction block; 16. Transmission groove; 17. Gear plate; 18. Movable disc; 1801. Auxiliary ring; 19. Meshing gear; 20. First mounting shaft; 21. First motor; 22. Second mounting shaft; 23. Transmission gear; 24. Reversing shaft; 25. Transmission mechanism; 26. Conductive contact; 27. Conductive ring; 28. Drive gear ring; 29. ​​Mounting block; 30. Drive gear; 31. Second motor. Detailed Implementation

[0052] 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.

[0053] Please see Figures 1-10Example 1: The present invention provides the following technical solution: a sampling machine for road geological survey, including a base 1 placed on a support surface, a guide groove 6 in the middle of the base 1, and a connecting cylinder 3 penetrating through the guide groove 6, the connecting cylinder 3 being hollow, and a sampling head 4 fixed at the lower end of the connecting cylinder 3, the sampling head 4 rotating into the soil to deliver the sample into the connecting cylinder 3, an extension cylinder 8 connected above the connecting cylinder 3, the extension cylinder 8 being hollow, and a docking mechanism provided between the extension cylinder 8 and the connecting cylinder 3 to connect the extension cylinder 8 and the connecting cylinder 3, adjusting the soil penetration depth of the sampling head 4, a fixing seat 7 provided on the outside of the connecting cylinder 3, a vertical control mechanism provided on the inside of the fixing seat 7 to provide vertical driving force to the connecting cylinder 3 on the outside of the connecting cylinder 3, and a rotating mechanism provided on the outside of the connecting cylinder 3 to provide rotational power to the connecting cylinder 3.

[0054] In use, the base 1 can be placed at the geological exploration sampling location. The vertical control mechanism and the rotary drive mechanism control the rotation and downward movement of the connecting cylinder 3, so that the sampling head 4 is inserted into the soil and the sample enters the interior of the connecting cylinder 3. When it is necessary to continue sampling deeper after the connecting cylinder 3 has moved to its maximum position, the extension cylinder 8 can be installed above the connecting cylinder 3. Then, the connecting cylinder 3 and the extension cylinder 8 can continue to be controlled to move downward and rotate. The extension cylinder 8 can be connected above the extension cylinder 8 to achieve flexible adjustment and control of the sampling depth. The sample is always kept inside the extension cylinder 8 and the connecting cylinder 3, which can also reduce pollution to the surrounding environment. When the connecting cylinder 3 and the extension cylinder 8 are pulled out later, the sample can be completely preserved, which is convenient for subsequent sample analysis.

[0055] Example 2: Based on Example 1, a support frame 2 is fixed above the base 1. An extension tube 8 passes through the middle of the support frame 2, forming a nested connection. The docking mechanism includes a docking groove 9, a docking block 10, a locking block 11, a locking groove 12, a spring 13, and a release mechanism. The docking groove 9 is formed on the upper surfaces of the connecting tube 3 and the extension tube 8. The docking block 10 is fixed on the lower surface of the extension tube 8, and the docking block 10 and the docking groove 9 form a convex-concave fit structure. The locking block 11 is disposed inside the docking block 10, forming a telescopic structure between the docking block 10 and the docking block 12. The lower surface of 1 has an inclined structure design. The locking groove 12 is opened inside the docking groove 9. The locking groove 12 is connected to the locking block 11 to lock the connection between the docking block 10 and the docking groove 9. The spring 13 is fixedly connected to the locking block 11 to provide a pushing force to the locking block 11. The release mechanism is set on the outside of the locking block 11 to control the movement of the locking block 11. The release mechanism includes a magnet 14 and an attraction block 15. The magnet 14 is fixed to the end of the locking block 11, and the attraction block 15 is fixed inside the support frame 2. When the attraction block 15 and the magnet 14 are opposite each other, the attraction magnet 14 drives the locking block 11 to move.

[0056] When installing the extension tube 8, the connecting block 10 can be inserted into the connecting groove 9. The inclined surface of the locking block 11 is compressed and contracts. After the locking block 11 moves to the position of the locking groove 12, it connects with the locking groove 12 under the action of the spring 13, locking the connection between the connecting block 10 and the connecting groove 9, thus completing the installation of the connecting tube 8. When the connecting tube 8 needs to be disassembled later, the connection point of the extension tube 8 can be moved to the inside of the support frame 2, so that the magnet 14 at the outer end of the locking block 11 and the attraction block 15 are opposite each other. The attraction block 15 attracts the magnet 14, causing the locking block 11 to move, releasing the connection between the locking block 11 and the locking groove 12. The connecting block 10 can then be pulled out from the connecting groove 9, making disassembly and assembly convenient and quick.

[0057] Example 3: Based on Example 2, a reaming head 5 is provided on the outer side of the sampling head 4 to provide downward space for the outside of the connecting cylinder 3. The vertical control mechanism includes a toothed plate 17, a movable disk 18, a meshing gear 19, a first mounting shaft 20, and a first motor 21. The toothed plate 17 is fixed on the surfaces of the connecting cylinder 3 and the extension cylinder 8, and the toothed plate 17 on the surface of the extension cylinder 8 has a vertically connected structure. The toothed plate 17 on the surface of the extension cylinder 8 and the toothed plate 17 on the surface of the connecting cylinder 3 are mutually connected. The movable disk 18 is rotatably mounted inside the fixed base 7. The meshing gear 19 is located inside the movable disk 18, and the meshing gear 19 and the toothed plate 17 form a meshing connection. A first mounting shaft 20 is fixed to the middle of the meshing gear 19. A rotatable connection is formed between the first mounting shaft 20 and the movable disk 18. A first motor 21 is connected to the first mounting shaft 20 to provide driving force. The gear plate 17 and the meshing gear 19 are symmetrically arranged about the center line of the fixed seat 7. A second mounting shaft 22 is located on the right side of the first mounting shaft 20. The meshing gear 19 is fixed to the surface of the second mounting shaft 22, and a synchronization mechanism is located on the rear side of the second mounting shaft 22. The first mounting shaft 20 drives the second mounting shaft 22 to rotate through the synchronization mechanism. The synchronization mechanism includes a transmission gear 23, a reversing shaft 24, and a transmission mechanism 25. 3. A reversing shaft 24 is fixed to the rear side of the first mounting shaft 20 and rotatably mounted inside the movable disk 18. The reversing shaft 24 meshes with the first mounting shaft 20 through a transmission gear 23. A transmission mechanism 25 is located on the outside of the reversing shaft 24. The reversing shaft 24 drives the second mounting shaft 22 to rotate through the transmission mechanism 25. A conductive contact 26 is fixed to the outside of the movable disk 18. A conductive ring 27 is attached to the outside of the conductive contact 26. The conductive contact 26 and the conductive ring 27 are electrically connected. The conductive ring 27 is fixed inside the fixed seat 7 in a ring structure. The rotating mechanism includes a transmission groove 16, a drive gear ring 28, a mounting block 29, a drive gear 30, and a second electric... The machine 31 has a transmission groove 16 formed on the surface of the connecting cylinder 3 and the extension cylinder 8, and the transmission groove 16 is arranged vertically through the surface of the extension cylinder 8. The drive gear ring 28 is fixedly connected to the movable disk 18, and the vertical center line of the drive gear 30 coincides with the vertical center line of the connecting cylinder 3. The mounting block 29 is set on the outside of the transmission groove 16, and the mounting block 29 and the transmission groove 16 form a vertical sliding structure. The mounting block 29 is fixedly connected to the drive gear ring 28. The drive gear 30 is set on the outside of the drive gear ring 28 and forms a meshing connection with the drive gear ring 28. The second motor 31 is connected to the drive gear 30 to provide rotational power for the drive gear 30.

[0058] During drilling and sampling, the second motor 31 can control the drive gear 30 to rotate, which in turn drives the drive gear ring 28 to rotate through meshing with it. The drive gear ring 28 drives the connecting cylinder 3 to rotate through the mounting block 29, and simultaneously drives the movable disk 18 to rotate. The movable disk 18 rotates within the fixed seat 7 through the auxiliary ring 1801. At the same time, the first motor 21 can be started to drive the first mounting shaft 20 to rotate. The first mounting shaft 20 drives the reversing shaft 24 to rotate through the transmission gear 23. The reversing shaft 24 drives the second mounting shaft 22 to rotate through the transmission mechanism 25. The transmission mechanism 25 can adopt a pulley structure. The first mounting shaft 20 and the second mounting shaft 22 drive the meshing gear 19 to rotate. The meshing gear 19 drives the connecting cylinder 3 to move vertically through meshing with the toothed plate 17, thereby realizing the drilling and sampling operation.

[0059] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0060] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0061] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sampling machine for road geological survey, comprising a base (1) placed on a supporting surface; characterized in that A guide groove (6) is formed in the middle of the base (1), and a connecting cylinder (3) penetrates the inside of the guide groove (6), the connecting cylinder (3) is hollow, and a sampling head (4) is fixed to the lower end of the connecting cylinder (3), the sampling head (4) rotates into the soil to send the sample into the connecting cylinder (3), a lengthening cylinder (8) is connected to the upper side of the connecting cylinder (3), the lengthening cylinder (8) is designed in a hollow structure, and a docking mechanism is arranged between the lengthening cylinder (8) and the connecting cylinder (3) to connect the lengthening cylinder (8) and the connecting cylinder (3), adjust the soil penetration depth of the sampling head (4), a fixing seat (7) is arranged on the outer side of the connecting cylinder (3), a vertical control mechanism is arranged on the inner side of the fixing seat (7), and the outer side of the connecting cylinder (3) provides vertical driving force for the connecting cylinder (3), a rotating mechanism is arranged on the outer side of the connecting cylinder (3) to provide rotating power for the connecting cylinder (3), and the vertical control mechanism comprises a toothed plate (17), a movable disc (18), an engaging gear (19), a first mounting shaft (20) and a first motor (21). The toothed plate (17) is fixed to the surface of the connecting cylinder (3) and the lengthening cylinder (8), and the toothed plate (17) on the surface of the lengthening cylinder (8) is designed in an up-down communication structure, and the toothed plate (17) on the surface of the lengthening cylinder (8) and the toothed plate (17) on the surface of the connecting cylinder (3) are in abutment with each other. The movable disc (18) is rotatably installed in the inside of the fixing seat (7). The engaging gear (19) is arranged in the inside of the movable disc (18), and the engaging gear (19) and the toothed plate (17) are in meshing connection. The first mounting shaft (20) is fixed in the middle of the engaging gear (19), and the first mounting shaft (20) and the movable disc (18) are in rotating connection. The first motor (21) is connected with the first mounting shaft (20) to provide driving force for the first mounting shaft (20). The rotating mechanism comprises a transmission groove (16), a driving gear ring (28), a mounting block (29), a driving gear (30) and a second motor (31). The transmission groove (16) is formed in the surface of the connecting cylinder (3) and the lengthening cylinder (8), and the transmission groove (16) is arranged in an up-down through structure on the surface of the lengthening cylinder (8). The driving gear ring (28) is fixedly connected with the movable disc (18), and the vertical center line of the driving gear (30) and the vertical center line of the connecting cylinder (3) are arranged in coincidence. The mounting block (29) is arranged on the outer side of the transmission groove (16), and the mounting block (29) and the transmission groove (16) are in up-down sliding structure, the mounting block (29) is fixedly connected with the driving gear ring (28). The driving gear (30) is arranged on the outer side of the driving gear ring (28) and in meshing connection with the driving gear ring (28). The second motor (31) is connected with the driving gear (30) to provide rotating power for the driving gear (30).

2. A sampling machine for road geological survey according to claim 1, characterized in that: The outer side of the sampling head (4) is provided with a reaming head (5) to provide a downward space for the outside of the connecting cylinder (3).

3. A sampling machine for road geological survey according to claim 1, characterized in that: The upper part of the base (1) is fixed with a support frame (2), and the extension barrel (8) penetrates the middle part of the support frame (2) and the support frame (2) to form a nested connection.

4. A sampling machine for road geological survey according to claim 3, characterized in that: The docking mechanism comprises a docking groove (9), a docking block (10), a locking block (11), a locking groove (12), a spring (13) and a release mechanism. The docking groove (9) is arranged on the upper surface of the connecting barrel (3) and the extension barrel (8). The docking block (10) is fixed on the lower surface of the extension barrel (8), and the docking block (10) and the docking groove (9) form a concave-convex matching structure. The locking block (11) is arranged in the docking block (10) and forms a telescopic structure with the docking block (10), and the lower surface of the locking block (11) is designed in an inclined structure. The locking groove (12) is arranged in the docking groove (9), and the locking groove (12) and the locking block (11) are connected to lock the connection between the docking block (10) and the docking groove (9). The spring (13) is fixedly connected with the locking block (11) to provide a thrust force for the locking block (11). The release mechanism is arranged on the outside of the locking block (11) to control the movement of the locking block (11).

5. A sampling machine for road geological survey according to claim 4, characterized in that: The release mechanism comprises a magnet (14) and an attracting block (15), the magnet (14) is fixed on the end of the locking block (11), and the attracting block (15) is fixed in the inside of the support frame (2). When the attracting block (15) and the magnet (14) are opposite, the attracting block (15) drives the magnet (14) to move.

6. A sampling machine for road geological survey according to claim 1, characterized in that: The tooth plate (17) and the meshing gear (19) are symmetrically arranged about the center line of the fixed seat (7), the right side of the first mounting shaft (20) is provided with a second mounting shaft (22), the surface of the second mounting shaft (22) is fixed with the meshing gear (19), and the rear side of the second mounting shaft (22) is provided with a synchronous mechanism, and the first mounting shaft (20) drives the second mounting shaft (22) to rotate through the synchronous mechanism.

7. A sampling machine for road geological survey according to claim 6, characterized in that: The synchronous mechanism comprises a transmission gear (23), a reversing shaft (24) and a transmission mechanism (25). The transmission gear (23) is fixed on the rear side of the first mounting shaft (20). The reversing shaft (24) is rotatably installed in the inside of the movable disc (18), and the reversing shaft (24) is engaged with the first mounting shaft (20) through the transmission gear (23). The transmission mechanism (25) is arranged on the outside of the reversing shaft (24), and the reversing shaft (24) drives the second mounting shaft (22) to rotate through the transmission mechanism (25).

8. A sampling machine for road geological survey according to claim 1, characterized in that: The movable disc (18) is fixed with a conductive contact (26) on the outside, and the conductive contact (26) is attached with a conductive ring (27) on the outside. The conductive contact (26) and the conductive ring (27) are electrically connected, and the conductive ring (27) is fixed in the inside of the fixed seat (7) in an annular structure.

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