Sampling machine for road geological survey

Abstract

The invention discloses a sampling machine for road geological survey, and relates to the field of geological survey, the sampling machine comprises a base placed on a supporting surface, the middle of the base is provided with a guide groove, a connecting cylinder penetrates through the guide groove, the connecting cylinder is hollow, and the lower end of the connecting cylinder is fixedly provided with a sampling head; the sampling head rotates into a soil body to feed a sample into the connecting cylinder, and the upper part of the connecting cylinder is connected with the extension cylinder which is designed to be of a hollow structure. According to the sampling machine for road geological survey, the connecting cylinder rotates and moves downwards to be matched with the sampling head, so that the sampling machine can be inserted into a soil body, a sample enters the connecting cylinder and can be kept complete, the extension cylinder can be spliced and mounted above the connecting cylinder, the connecting cylinder can continuously move downwards to sample a deeper position, repeated sampling is not needed, and the sampling efficiency is improved. And the extension cylinders can also be spliced, so that the sampling depth range is widened, and the functionality and the use flexibility of the device are improved.

Description

Technical Field

[0001] The invention relates to the technical field of geological survey, in particular to a sampling machine used for road geological survey. Background Art

[0002] During road construction, it is particularly important to survey the road geology. Through geological survey, geological information can be obtained, so that the construction plan can be designed according to the geological conditions. Geological samples can be taken out first during the geological survey.

[0003] Prior art 1 (application number CN202220488442.5, Chinese patent published on December 9, 2022) A rock and soil sampling device for geological survey of urban road engineering, comprising a frame, a hydraulic cylinder is provided on the top of the frame, a disc is provided on the hydraulic cylinder, a circular groove is provided at the bottom end of the disc, a square bar is provided on the inner wall of the top of the circular groove, a shell is in contact with the circular groove, a square groove is provided at the top end of the shell for clamping with the square bar, a servo motor is provided in the shell, a sampling rod is provided at the shaft end of the servo motor, an adjustment shaft is rotatably connected to the square bar, two translation grooves are provided on the side of the square bar, a translation bar is in sliding contact with the translation groove, a connecting block is provided on the side of the translation bar, two slot bodies are provided on the top end of the shell, a buckle groove is provided on the side wall of the slot body, and a fastener is provided on the side of the connecting block for clamping with the buckle groove. This application can facilitate the switching of rock and soil sampling devices; Prior art 2 (application number CN202410662861.X, Chinese patent published on September 17, 2024) A soil detection sampler, including a hollow frame, a drive assembly, a drill bit and a sampling barrel assembly, the drive assembly is arranged on the hollow frame, the drill bit is arranged below the drive assembly, the drill bit is located below the hollow frame, the sampling barrel assembly is arranged above the drill bit, the sampling barrel assembly includes a lower cover shell, an upper outer barrel , a lower sampling unit and an upper expansion unit, the lower cover shell is fixedly arranged on the top of the drill bit, the upper outer cylinder is fixedly arranged on the lower cover shell, the lower sampling unit is arranged in the lower cover shell, and the upper expansion unit is arranged in 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 the soil away to avoid the problem of surface soil collapse and affecting the purity of the sampled soil.

[0004] At present, when sampling and surveying geology, sampling is directly performed with a sampling tube. However, the sampling depth is limited due to the closure of the upper portion of the sampling tube. When sampling at a deeper position is required, the sample needs to be taken out linearly and then the sampling operation needs to be repeated. The sampling is less convenient and the soil is directly destroyed during sampling, which affects the integrity of the sample and is not convenient for analyzing the longitudinal section of the sample. Summary of the Invention

[0005] The purpose of the present invention is to provide a sampling machine for road geological surveys to solve the problem raised in the above-mentioned background technology that when sampling and surveying geology, sampling is directly performed using a sampling tube. Since the upper part of the sampling tube is closed, its sampling depth is limited. When sampling at a deeper position is required, the sample needs to be taken out online and then the sampling operation needs to be repeated, resulting in low sampling convenience.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sampling machine for road geological survey, comprising a base placed on a supporting surface, a guide groove being provided in the middle of the base, and a connecting tube passing through the inside of the guide groove, the connecting tube being hollow, and a sampling head being fixed at the lower end of the connecting tube, the sampling head being rotated into the soil to send the sample into the connecting tube, an extension tube being connected above the connecting tube, and the extension tube being hollow in structure, and a docking mechanism being provided between the extension tube and the connecting tube, the extension tube and the connecting tube being connected to adjust the depth of the sampling head into the soil, a fixed seat being provided on the outside of the connecting tube, a vertical control mechanism being provided on the inside of the fixed seat, providing vertical driving force for the connecting tube on the outside of the connecting tube, and a rotating mechanism being provided on the outside of the connecting tube to provide rotational power for the connecting tube.

[0007] To further optimize the technical solution, a reaming head is provided on the outside of the sampling head to provide downward movement space for the outside of the connecting tube.

[0008] To further optimize the 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 between the support frames.

[0009] Further optimizing the technical solution, the docking mechanism includes a docking groove, a docking block, a locking block, a locking groove, a spring and a release mechanism; The docking groove is provided on the upper surface of the connecting tube and the extension tube; The docking block is fixed on the lower surface of the extension tube, and a concave-convex matching structure is formed between the docking block and the docking groove; The locking block is arranged inside the docking block and between the docking blocks to form a telescopic structure, and the lower surface of the locking block is designed in an inclined structure; A locking groove is provided inside the docking groove, and the locking groove is connected to the locking block to lock the connection between the docking block and the docking groove; The spring is fixedly connected to the locking block to provide thrust for the locking block; The releasing mechanism is arranged on the outer side of the locking block to control the movement of the locking block.

[0010] To further optimize this technical solution, the release mechanism includes a magnet and an attraction block, the magnet is fixed at the end of the locking block, and the attraction block is fixed inside the support frame. When the attraction block and the magnet are relative, the attraction magnet drives the locking block to move.

[0011] Further optimizing the technical solution, the vertical control mechanism includes a gear plate, a movable disk, an engaging gear, a first mounting shaft and a first motor; The tooth plate is fixed on the surface of the connecting tube and the extension tube, and the tooth plate is designed to be connected up and down on the surface of the extension tube. The tooth plate on the surface of the extension tube and the tooth plate on the side of the surface of the connecting tube are butted against each other. The movable plate is rotatably mounted inside the fixed seat; The meshing gear is arranged inside the movable plate, and the meshing gear and the tooth plate form a meshing connection; A first mounting shaft is fixed to the middle portion of the meshing gear, and a rotational connection is formed between the first mounting shaft and the movable disk; The first motor is connected to the first installation shaft to provide driving force for the first installation shaft.

[0012] To further optimize this technical solution, the tooth plate and the meshing gear are arranged symmetrically about the center line of the fixed seat, a second mounting shaft is arranged on the right side of the first mounting shaft, a meshing gear is fixed on the surface of the second mounting shaft, and a synchronization mechanism is arranged on the rear side of the second mounting shaft, and the first mounting shaft drives the second mounting shaft to rotate through the synchronization mechanism.

[0013] Further optimizing the technical solution, the synchronization mechanism includes a transmission gear, a reversing shaft and a transmission mechanism; a transmission gear fixed to the rear side of the first mounting shaft; A reversing shaft is rotatably mounted inside the movable disk, and the reversing shaft is meshed with the first mounting shaft via a transmission gear; The transmission mechanism is arranged on the outside of the reversing shaft, and the reversing shaft drives the second installation shaft to rotate through the transmission mechanism.

[0014] To further optimize this technical solution, a conductive contact is fixed to the outer side of the movable disk, 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 seat in an annular structure.

[0015] Further optimizing the technical solution, the rotating mechanism includes a transmission slot, a drive gear ring, a mounting block, a drive gear and a second motor; The transmission groove is provided on the surface of the connecting tube and the extension tube, and the transmission groove is provided on the surface of the extension tube in a vertically penetrating shape; The driving gear ring is fixedly connected to the movable plate, and the vertical center line of the driving gear and the vertical center line of the connecting cylinder are arranged to coincide with each other; The mounting block is arranged on the outside of the transmission groove, and an up-and-down sliding structure is formed between the mounting block and the transmission groove, and the mounting block is fixedly connected to the driving gear ring; A driving gear is arranged on the outer side of the driving gear ring and is meshed with the driving gear ring; The second motor is connected to the driving gear to provide rotational power to the driving gear.

[0016] Compared with the prior art, the present invention has the following beneficial effects: By rotating and moving the connecting tube downward, the sampling head can be inserted into the soil, and the sample enters the connecting tube. The sample can remain intact, and the extension tube can be spliced and installed above the connecting tube, so that the connecting tube can continue to move downward to sample at a deeper position, without the need for repeated sampling, and the extension tube can also be spliced, thereby improving its sampling depth range and increasing the functionality and flexibility of the device.

[0017] The extension tube and the connecting tube are connected by a docking mechanism, which is convenient and fast to plug in. After docking, they can maintain good stability. The extension tube can be removed from the connecting tube later, and the sample can be divided into sections, which is convenient for the survey of samples at different depths.

[0018] The non-contact control method can reduce the structural settings on the outside of the locking block. When the docking point of the subsequent extension tube moves to the attraction block on the support frame, the locking block is automatically controlled to move in conjunction with its attraction effect, making it convenient to split the extension tube.

[0019] The rotation of the meshing gear and the toothed plate can provide vertical driving force for the connecting tube and the extension tube. It can also provide continuous control after the extension tube is spliced. After the sampling is completed, the extension tube can be controlled to move upward to facilitate pulling out the sample. At the same time, the meshing gear can rotate with the rotation of the connecting tube, so that the subsequent connecting tube can rotate stably.

[0020] The driving gear ring cooperates with the mounting block to provide rotational power for the connecting tube and the extension tube, and the mounting block can slide in the transmission groove without affecting the subsequent vertical movement of the extension tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention when viewed from above; Figure 3 This is a schematic diagram of the top view of the support frame of the present invention; Figure 4 This is a schematic diagram of the connection structure between the connecting tube and the extension tube of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the extension tube of the present invention; Figure 6 This is a schematic diagram of the top view of the fixing seat of the present invention; Figure 7 This is a schematic diagram of the connection structure of the docking block and the docking groove of the present invention; Figure 8 This is a schematic diagram of the main cross-sectional structure of the fixing seat of the present invention; Figure 9 This is a schematic diagram of the top view of the meshing gear structure of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure of the driving gear ring of the present invention.

[0022] In the figure: 1. base; 2. support frame; 3. connecting tube; 4. sampling head; 5. reaming head; 6. guide groove; 7. fixing seat; 8. extension tube; 9. docking groove; 10. docking block; 11. locking block; 12. locking groove; 13. spring; 14. magnet; 15. attraction block; 16. transmission groove; 17. tooth plate; 18. movable disk; 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. conduction ring; 28. drive gear ring; 29. mounting block; 30. drive gear; 31. second motor. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1-10 The present invention provides the following technical solutions: a sampling machine for road geological survey, comprising a base 1 placed on a supporting surface, a guide groove 6 is opened in the middle of the base 1, and a connecting tube 3 is passed through the guide groove 6, the connecting tube 3 is hollow, and a sampling head 4 is fixed at the lower end of the connecting tube 3, the sampling head 4 rotates into the soil to send the sample into the connecting tube 3, an extension tube 8 is connected above the connecting tube 3, and the extension tube 8 is hollow, and a docking mechanism is provided between the extension tube 8 and the connecting tube 3, the extension tube 8 and the connecting tube 3 are connected, and the depth of the sampling head 4 into the soil is adjusted, a fixing seat 7 is provided on the outside of the connecting tube 3, and a vertical control mechanism is provided on the inside of the fixing seat 7, a vertical driving force is provided for the connecting tube 3 on the outside, and a rotating mechanism is provided on the outside of the connecting tube 3 to provide rotational power for the connecting tube 3.

[0025] When in use, the base 1 can be placed at the geological survey sampling position, and the connecting tube 3 is controlled to rotate and move downward through the vertical control mechanism and the rotation drive mechanism, so that the sampling head 4 is inserted into the soil and the sample enters the interior of the connecting tube 3. When the connecting tube 3 moves down to the maximum position and needs to continue sampling to a deeper depth, the extension tube 8 can be installed above the connecting tube 3, and then the connecting tube 3 and the extension tube 8 are continued to be controlled to move down and rotate, and the extension tube 8 can continue to be connected to the top of the extension tube 8 to achieve flexible adjustment and control of the sampling depth. The sample is always kept inside the extension tube 8 and the connecting tube 3, and the pollution to the surrounding environment can also be reduced. When the connecting tube 3 and the extension tube 8 are subsequently pulled out, the sample can be completely retained, which is convenient for subsequent analysis of the sample.

[0026] Example 2: On the basis of Example 1, a support frame 2 is fixed on the top of the base 1, and the extension tube 8 passes through the middle of the support frame 2 and forms a nested connection between the support frame 2. 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 opened on the upper surface 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 a concave-convex matching structure is formed between the docking block 10 and the docking groove 9. The locking block 11 is arranged inside the docking block 10 and between the docking block 10 to form a telescopic structure, and the locking block 11 is arranged inside the docking block 10 and between the docking block 10 to form a telescopic structure, and the locking block 11 is arranged inside the docking block 10 and between the docking block 10 to form a telescopic structure. 1 has an inclined structural design, and a locking groove 12 is provided 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 thrust 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. 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 to the inside of the support frame 2. When the attraction block 15 and the magnet 14 are relative, the magnet 14 is attracted to drive the locking block 11 to move.

[0027] When the extension tube 8 is installed, the docking block 10 can be inserted into the docking groove 9, and the inclined surface of the locking block 11 is compressed and contracted. After the locking block 11 moves to the position of the locking groove 12, it is connected to the locking groove 12 under the action of the spring 13, and the connection between the docking block 10 and the docking groove 9 is locked, completing the installation of the docking tube 8. When the docking tube 8 needs to be disassembled later, the connection 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 is opposite to the attraction block 15, and the attraction block 15 attracts the magnet 14 to drive the locking block 11 to move, and the connection between the locking block 11 and the locking groove 12 is released, and the docking block 10 can be pulled out from the docking groove 9, which is convenient and quick to disassemble.

[0028] Example 3: On the basis of Example 2, it is disclosed that a reaming head 5 is provided on the outside of the sampling head 4 to provide downward space for the outside of the connecting tube 3. The vertical control mechanism includes a tooth plate 17, a movable disk 18, a meshing gear 19, a first mounting shaft 20 and a first motor 21. The tooth plate 17 is fixed on the surface of the connecting tube 3 and the extension tube 8, and the tooth plate 17 is designed to be connected up and down on the surface of the extension tube 8. The tooth plate 17 on the surface of the extension tube 8 and the tooth plate 17 on the side of the surface of the connecting tube 3 are connected to each other. The movable disk 18 is rotatably mounted on the inside of the fixed seat 7. The meshing gear 19 is arranged on the inside of the movable disk 18, and a meshing connection is formed between the meshing gear 19 and the tooth plate 17. , the first mounting shaft 20 is fixed to the middle of the meshing gear 19, and a rotation connection is formed between the first mounting shaft 20 and the movable disk 18. The first motor 21 is connected to the first mounting shaft 20 to provide driving force for the first mounting shaft 20. The toothed plate 17 and the meshing gear 19 are arranged symmetrically about the center line of the fixed seat 7. A second mounting shaft 22 is provided on the right side of the first mounting shaft 20. The meshing gear 19 is fixed on the surface of the second mounting shaft 22, and a synchronization mechanism is provided 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. The transmission gear 2 3, fixed on the rear side of the first mounting shaft 20, the reversing shaft 24, rotatably mounted inside the movable disk 18, and the reversing shaft 24 is meshed with the first mounting shaft 20 through the transmission gear 23, the transmission mechanism 25, arranged 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, the outer side of the movable disk 18 is fixed with a conductive contact 26, the outer side of the conductive contact 26 is attached with a conducting ring 27, the conductive contact 26 and the conducting ring 27 are electrically connected, and the conducting ring 27 is annularly fixed to the inside of the fixed seat 7, the rotating mechanism includes a transmission groove 16, a driving gear ring 28, a mounting block 29, a driving gear 30 and a second electrical The machine 31 and the transmission groove 16 are provided on the surface of the connecting tube 3 and the extension tube 8, and the transmission groove 16 is arranged in an up and down through shape on the surface of the extension tube 8. The driving gear ring 28 is fixedly connected to the movable disk 18, and the vertical center line of the driving gear 30 coincides with the vertical center line of the connecting tube 3. The mounting block 29 is arranged on the outside of the transmission groove 16, and an up and down sliding structure is formed between the mounting block 29 and the transmission groove 16. The mounting block 29 is fixedly connected to the driving gear ring 28. The driving gear 30 is arranged on the outside of the driving gear ring 28 and is meshed with the driving gear ring 28. The second motor 31 is connected to the driving gear 30 to provide rotational power for the driving gear 30.

[0029] When controlling drilling and sampling, the driving gear 30 can be controlled to rotate by the second motor 31, so that it drives the driving gear ring 28 to rotate through the engagement between it and the driving gear ring 28. The driving gear ring 28 drives the connecting tube 3 to rotate through the mounting block 29, and at the same time drives the movable disk 18 to rotate. The movable disk 18 rotates in 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 tube 3 to move vertically through the engagement with the tooth plate 17, thereby realizing drilling and sampling operations.

[0030] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] In the description of this application, it should be noted that, unless otherwise specified or limited, the terms "dispose," "install," and other conjunctions should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sampling machine for road geological survey, comprising a base (1) placed on a support surface; Its characteristics are: A guide groove (6) is provided in the middle of the base (1), and a connecting tube (3) is passed through the inside of the guide groove (6). The connecting tube (3) is hollow, and a sampling head (4) is fixed at the lower end of the connecting tube (3). The sampling head (4) rotates into the soil to send the sample into the connecting tube (3). An extension tube (8) is connected above the connecting tube (3), and the extension tube (8) is hollow in structure. A docking mechanism is provided between the extension tube (8) and the connecting tube (3). The extension tube (8) and the connecting tube (3) are connected to adjust the depth of the sampling head (4) into the soil. A fixed seat (7) is provided on the outside of the connecting tube (3), and a vertical control mechanism is provided on the inside of the fixed seat (7). A vertical driving force is provided for the connecting tube (3) on the outside of the connecting tube (3). A rotating mechanism is provided on the outside of the connecting tube (3) to provide rotating power for the connecting tube (3).

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

3. The sampling machine for road geological survey according to claim 1, characterized in that: A support frame (2) is fixed above the base (1), and the extension tube (8) passes through the middle of the support frame (2) to form a nested connection between the support frame (2).

4. The 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; A docking groove (9) is provided on the upper surfaces of the connecting tube (3) and the extension tube (8); A docking block (10) is fixed to the lower surface of the extension tube (8), and a concave-convex matching structure is formed between the docking block (10) and the docking groove (9); A locking block (11) is arranged inside the docking block (10) and between the docking blocks (10) to form a telescopic structure, and the lower surface of the locking block (11) is designed to be inclined; A locking groove (12) is provided inside 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 to the locking block (11) to provide thrust for the locking block (11); The releasing mechanism is arranged on the outside of the locking block (11) and controls the movement of the locking block (11).

5. The sampling machine for road geological survey according to claim 4, characterized in that: The release mechanism comprises a magnet (14) and an attraction block (15), wherein 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 relative to each other, the magnet (14) is attracted to drive the locking block (11) to move.

6. The sampling machine for road geological survey according to claim 1, characterized in that: The vertical control mechanism includes a gear plate (17), a movable disk (18), an engaging gear (19), a first mounting shaft (20) and a first motor (21); The tooth plate (17) is fixed on the surface of the connecting tube (3) and the extension tube (8), and the tooth plate (17) is designed to be connected to the surface of the extension tube (8) in an upper and lower manner, and the tooth plate (17) on the surface of the extension tube (8) and the tooth plate (17) on the side surface of the connecting tube (3) are connected to each other; A movable disk (18) is rotatably mounted inside the fixed seat (7); A meshing gear (19) is disposed inside the movable disk (18), and a meshing connection is formed between the meshing gear (19) and the toothed plate (17); A first mounting shaft (20) is fixed to the middle of the meshing gear (19), and a rotational connection is formed between the first mounting shaft (20) and the movable disk (18); The first motor (21) is connected to the first installation shaft (20) to provide driving force for the first installation shaft (20).

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

8. The sampling machine for road geological survey according to claim 6, characterized in that: The synchronization mechanism includes a transmission gear (23), a reversing shaft (24) and a transmission mechanism (25); A transmission gear (23) is fixed to the rear side of the first mounting shaft (20); A reversing shaft (24) is rotatably mounted inside the movable disk (18), and the reversing shaft (24) is meshed with the first mounting shaft (20) via a transmission gear (23); The transmission mechanism (25) is arranged outside the reversing shaft (24), and the reversing shaft (24) drives the second installation shaft (22) to rotate through the transmission mechanism (25).

9. The sampling machine for road geological survey according to claim 6, characterized in that: A conductive contact (26) is fixed on the outer side of the movable disk (18), and a conducting ring (27) is attached to the outer side of the conductive contact (26). The conductive contact (26) and the conducting ring (27) are electrically connected, and the conducting ring (27) is fixed inside the fixing seat (7) in an annular structure.

10. The sampling machine for road geological survey according to claim 6, characterized in that: The rotating mechanism comprises a transmission slot (16), a driving gear ring (28), a mounting block (29), a driving gear (30) and a second motor (31); A transmission groove (16) is provided on the surface of the connecting tube (3) and the extension tube (8), and the transmission groove (16) is provided on the surface of the extension tube (8) in a vertically penetrating manner; The driving gear ring (28) is fixedly connected to the movable plate (18), and the vertical center line of the driving gear (30) and the vertical center line of the connecting cylinder (3) are arranged to coincide with each other; A mounting block (29) is arranged outside the transmission groove (16), and an up-and-down sliding structure is formed between the mounting block (29) and the transmission groove (16), and the mounting block (29) and the driving gear ring (28) are fixedly connected; A driving gear (30) is arranged on the outer side of the driving gear ring (28) and is meshed with the driving gear ring (28); The second motor (31) is connected to the driving gear (30) to provide rotational power for the driving gear (30).

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