Geological mapping geological content borehole type sampling device
By introducing flexible assembly, unloading, and self-unloading mechanisms into the sampling device, the problem of difficulty in separating the sampling cylinder from the motor shaft is solved, improving sampling efficiency and equipment lifespan, reducing operating costs, and ensuring sample integrity and testing accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SICHUAN YUXIN SURVEYING & MAPPING CO LTD
- Filing Date
- 2026-02-03
- Publication Date
- 2026-05-12
AI Technical Summary
In existing geological surveying and mapping borehole sampling devices, the fixed connection between the sampling cylinder and the motor shaft makes it difficult to separate the sample after sampling. The sampling cylinder needs to be knocked to remove the material, which leads to damage to the motor shaft and equipment failure, reduces efficiency and increases operating costs.
Design a borehole sampling device for geological mapping and geological content sampling. It adopts a flexible assembly mechanism, a material distribution mechanism and a self-discharging mechanism to realize the self-assembly and separation of the rotating shaft and the sampling cylinder. The assembly is strengthened by magnetic adsorption, and the multi-faceted groove and bolts facilitate disassembly. Combined with the self-discharging mechanism, it performs split-type knocking discharging.
It improves sampling efficiency, avoids damage to the motor shaft, simplifies the operation process, extends equipment life, reduces labor costs, and ensures sample integrity and testing accuracy.
Smart Images
Figure CN121612644B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of geological sample drilling technology, specifically to a borehole sampling device for geological mapping and geological content. Background Technology
[0002] In geological surveying, geological content analysis is a core component. Borehole sampling devices, as crucial equipment for obtaining underground rock strata, soil, and other geological samples, directly impact the accuracy of geological surveying results and the economic efficiency of the work due to their sampling efficiency, sample integrity, and equipment wear and tear. Currently available borehole sampling devices for geological content analysis have gradually revealed numerous technical deficiencies that urgently need to be addressed during actual operation, with the connection and fit between the cylinder and the motor shaft being particularly prominent.
[0003] Existing borehole sampling devices typically use a fixed connection or a single nested connection between the sampling cylinder and the motor shaft. After drilling for geological samples, the cylinder cannot be independently separated from the motor shaft. The sample often adheres to the inner wall of the sampling cylinder, requiring tapping to detach the columnar sample for collection. Because the cylinder is connected to the motor shaft, the resulting vibrations are directly transmitted to the motor shaft and its internal transmission components.
[0004] Long-term, repeated impacts and vibrations can cause damage such as deformation and wear to the motor shaft, as well as compromise the fit between the shaft and components like couplings and bearings. This can lead to abnormal noises and jamming during equipment operation, and in severe cases, even loosening of internal motor coils or gear meshing failure, significantly shortening the lifespan of the motor and the entire sampling device. Furthermore, to avoid shaft damage, operators must spend extra time disassembling the connection between the cylinder and the shaft. This cumbersome disassembly process not only reduces the overall efficiency of geological sampling but also increases labor costs.
[0005] Furthermore, while some improved devices attempt to reduce vibration transmission by adding buffer components, the buffering effect is limited and cannot fundamentally solve the problem of damage to the rotating shaft caused by impact vibration. In addition, the additional buffer structure increases the overall complexity of the device and the manufacturing cost of the equipment. It may also affect the stability during the sampling process, leading to sample breakage or damage, which in turn affects the accuracy of subsequent geological content detection results. The existence of these problems seriously restricts the efficient and stable development of geological surveying work. Therefore, a borehole sampling device for geological content in geological surveying is proposed to solve the existing problems. Summary of the Invention
[0006] To address the shortcomings of existing technologies, this invention provides a borehole sampling device for geological mapping, which solves the problem that traditional sample tubes are inconvenient to separate before being struck, resulting in damage to the motor and its shaft during the sample extraction process.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a geological surveying and mapping borehole sampling device, comprising a mounting frame and a mounting bracket, wherein the mounting bracket is fixedly mounted on the top of the mounting frame, a hydraulic telescopic cylinder is fixedly connected inside the mounting bracket, a mounting shell is fixedly connected to the bottom of the extension end of the hydraulic telescopic cylinder, a first servo motor is installed inside the mounting shell, the output shaft of the first servo motor is fixedly connected to a rotating shaft via a coupling, a flexible assembly mechanism is provided inside the mounting frame, a material unloading and distribution mechanism is provided inside the mounting frame in conjunction with the flexible assembly mechanism, and a self-unloading mechanism is provided on the inner wall of the mounting frame in conjunction with the material unloading and distribution mechanism.
[0008] Preferably, the flexible assembly mechanism includes a first chassis, which is rotatably mounted at the bottom of the inner cavity of the mounting frame. A second servo motor is fixedly connected to the top of the inner cavity of the mounting frame. The output shaft of the second servo motor is fixedly connected to a rotating roller via a coupling, and the bottom of the rotating roller is fixedly connected to the top of the first chassis. Several horizontal plates are slidably arranged around the top of the first chassis. A stepped sleeve is fixedly connected to the end of each horizontal plate. An annular cover is slidably arranged inside the stepped sleeve, and an extension shaft is rotatably arranged inside the annular cover. A sampling cylinder is installed at the bottom of the extended shaft. An assembly groove is opened inside the extended shaft. An assembly port communicating with the assembly groove is opened at the top of the extended shaft. A cylinder is fixedly connected to the bottom of the rotating shaft. An assembly insert that matches the assembly port is fixedly connected to the bottom of the cylinder. A spiral groove is opened on the inner wall of the stepped sleeve. Two spiral grooves are arranged around the inside. A sliding port communicating with the spiral groove is opened on the inner wall of the stepped sleeve. A guide roller that matches the spiral groove is rotatably arranged on the surface of the extended shaft.
[0009] Preferably, the material distribution mechanism includes a second chassis, which is rotatably disposed at the bottom of the inner cavity of the mounting frame. Both the second chassis and the first chassis have transmission ring grooves on their surfaces. A belt is connected between the first chassis and the second chassis through the transmission ring grooves. Several placement slots are equidistantly arranged around the top of the second chassis. A material collection cylinder is placed inside the placement slots. A convex ring frame is fixedly connected to the bottom of the inner cavity of the mounting frame through a bracket. A drag-reducing ring sleeve adapted to the convex ring frame is rotatably disposed on the surface of the horizontal plate.
[0010] Preferably, the self-unloading mechanism includes a chute frame, which is fixedly mounted on one side of the inner cavity of the mounting frame by a bracket. A movable support plate is slidably connected inside the chute frame. A third return spring is fixedly connected between the movable support plate and the chute frame. A striking plate is slidably mounted on one side of the chute frame. A push-pull bracket is rotatably connected between the striking plate and the movable support plate. A third servo motor is fixedly connected to the top of the chute frame. A cam that matches the movable support plate is installed at the end of the output shaft of the third servo motor.
[0011] Preferably, a plurality of limiting sleeves are fixedly connected at equal intervals around the top of the first chassis. The limiting sleeves are slidably connected to limiting posts, and the top of the limiting posts is fixedly connected to the bottom of the cross plate. A first return spring is fixedly connected between the limiting posts and the limiting sleeves. The inner wall of the limiting sleeves is provided with a vertical groove, and the surface of the limiting posts is fixedly connected to a slider that slides and adapts to the vertical groove.
[0012] Preferably, the bottom of the extension shaft has a multi-faceted groove, the top of the sampling tube is fixedly connected to a multi-faceted block, and the surfaces of the extension shaft and the sampling tube are both fixedly connected to a number of perforated ear plates, which are connected to each other on the same side by bolts.
[0013] Preferably, the inner wall of the stepped sleeve has two symmetrically formed limiting grooves, the limiting grooves are slidably connected to limiting slide plates, and the ends of the limiting slide plates are fixedly connected to the surface of the ring cover. A second return spring is fixedly connected between the limiting slide plates and the limiting grooves.
[0014] Preferably, a guide slide plate is fixedly connected to one side of the striking plate, and a guide slide plate is provided inside the slide frame to slide and adapt to the guide slide plate.
[0015] Preferably, the front and rear sides of the assembly block are provided with magnets, and the two magnets are staggered.
[0016] Preferably, several electric telescopic rods are fixedly connected to both sides of the mounting frame via brackets, and a pulley assembly is installed at the bottom of the extension ends of several electric telescopic rods on the same side.
[0017] This invention provides a borehole sampling device for geological mapping and geological content sampling. Compared with existing technologies, it has the following advantages:
[0018] (1) The geological surveying and mapping geological content borehole sampling device, by setting a flexible assembly mechanism, a material distribution mechanism and a self-discharging mechanism inside the mounting frame, enables the device to easily assemble and separate the rotating shaft and the sampling cylinder through the coordinated cooperation of the flexible assembly mechanism, the material distribution mechanism and the self-discharging mechanism, thereby improving the convenience of assembly between the rotating shaft and the sampling cylinder. After the rotating shaft and the sampling cylinder are separated, the empty sampling cylinder can be quickly switched into the sampling area through the material distribution mechanism, thereby improving the overall sampling efficiency. In this process, the sampling cylinder containing the sample is moved to the corresponding collection cylinder for separate knocking and discharging, thereby further improving the overall efficiency of the device while avoiding direct integrated knocking that affects the first servo motor and the rotating shaft, and promoting the orderly alternation of different sampling steps.
[0019] (2) The geological surveying and mapping geological content drilling sampling device, by staggering the magnetic pieces on the two wide surfaces of the assembly block, enables the assembly block to adhere to the inner wall of the assembly groove through the magnetic pieces when it is cross-limited with the assembly opening, thereby improving the assembly firmness.
[0020] (3) The geological surveying and mapping geological content drilling sampling device, by setting multi-faceted grooves, multi-faceted blocks, perforated ear plates and bolts on the extended shaft and sampling tube, makes it easy to disassemble and replace the sampling tube individually after the service life expires through the above-mentioned combination. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the external structure of the present invention;
[0022] Figure 2 This is a schematic diagram of the bottom structure of the inner cavity of the mounting frame of the present invention;
[0023] Figure 3 This is a schematic diagram of the material dispensing and distributing mechanism structure of the present invention;
[0024] Figure 4 This is a schematic diagram of the internal structure of the limiting sleeve of the present invention;
[0025] Figure 5 This is a schematic diagram of the internal structure of the stepped sleeve of the present invention;
[0026] Figure 6 This is a schematic diagram of the internal structure of the stepped sleeve of the present invention from another perspective;
[0027] Figure 7 This is a schematic diagram of the spiral groove and sliding through-hole structure of the present invention;
[0028] Figure 8 This is a schematic diagram of the internal structure of the assembly inner groove of the present invention;
[0029] Figure 9This is a schematic diagram (a) of the self-unloading mechanism structure of the present invention;
[0030] Figure 10 This is a schematic diagram (II) of the self-unloading mechanism structure of the present invention;
[0031] Figure 11 This is an unfolded view of the extended shaft and sampling cylinder structure of the present invention.
[0032] In the diagram: 1. Mounting frame; 2. Mounting bracket; 3. Hydraulic telescopic cylinder; 4. Mounting shell; 5. First servo motor; 6. Rotating shaft; 7. Flexible assembly mechanism; 701. First chassis; 702. Second servo motor; 703. Rotating roller; 704. Horizontal plate; 705. Stepped sleeve; 706. Ring cover; 707. Extended shaft; 708. Sampling cylinder; 709. Assembly inner groove; 710. Assembly port; 711. Assembly insert; 712. Spiral groove; 713. Sliding port; 714. Guide roller; 715. Cylindrical column; 8. Unloading and distributing mechanism; 801. Second chassis; 802. Transmission ring groove; 803. Belt; 804. Placement groove; 805. 806. Material collecting cylinder; 807. Convex ring frame; 808. Drag-reducing ring sleeve; 9. Self-unloading mechanism; 901. Slide frame; 902. Movable support plate; 903. Third return spring; 904. Striking plate; 905. Push-pull frame; 906. Third servo motor; 907. Cam; 10. Limiting sleeve; 11. Limiting post; 12. First return spring; 13. Slider; 14. Vertical groove; 15. Multi-faceted groove; 16. Multi-faceted block; 17. Ear plate with holes; 18. Bolt; 19. Limiting slide groove; 20. Limiting slide plate; 21. Second return spring; 22. Guide slide plate; 23. Guide slide groove; 24. Magnet piece; 25. Electric telescopic rod; 26. Pulley assembly. Detailed Implementation
[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
[0034] Please see Figures 1-11 The present invention provides a technical solution: a geological surveying and mapping geological content drilling sampling device, including a mounting frame 1 and a mounting bracket 2. The mounting bracket 2 is fixedly set on the top of the mounting frame 1. A hydraulic telescopic cylinder 3 is fixedly connected inside the mounting bracket 2. A mounting shell 4 is fixedly connected to the bottom of the extension end of the hydraulic telescopic cylinder 3. A first servo motor 5 is installed inside the mounting shell 4. The output shaft of the first servo motor 5 is fixedly connected to a rotating shaft 6 through a coupling. Several electric telescopic rods 25 are fixedly connected to both sides of the mounting frame 1 through brackets. A pulley assembly 26 is installed at the bottom of the extension end of several electric telescopic rods 25 on the same side.
[0035] In a preferred embodiment, to facilitate the automatic assembly and separation of the rotating shaft 6 and the sampling cylinder 708, a flexible assembly mechanism 7 is provided inside the mounting frame 1. The flexible assembly mechanism 7 includes a first chassis 701, which is rotatably mounted at the bottom of the inner cavity of the mounting frame 1. A second servo motor 702 is fixedly connected to the top of the inner cavity of the mounting frame 1. The output shaft of the second servo motor 702 is fixedly connected to a rotating roller 703 via a coupling, and the bottom of the rotating roller 703 is fixedly connected to the top of the first chassis 701. Several horizontal plates 704 are slidably arranged around the top of the first chassis 701. A stepped sleeve 705 is fixedly connected to the end of each horizontal plate 704. An annular cover 706 is slidably arranged inside the stepped sleeve 705, and an extension shaft 707 is rotatably arranged inside the annular cover 706. A sampling cylinder 708 is installed at the bottom of the shaft 707. An assembly groove 709 is opened inside the extended shaft 707. An assembly port 710 connected to the assembly groove 709 is opened at the top of the extended shaft 707. A cylinder 715 is fixedly connected to the bottom of the rotating shaft 6. An assembly block 711 adapted to the assembly port 710 is fixedly connected to the bottom of the cylinder 715. A spiral groove 712 is opened on the inner wall of the stepped sleeve 705. Two spiral grooves 712 are arranged around the shaft. A sliding port 713 connected to the spiral groove 712 is opened on the inner wall of the stepped sleeve 705. A guide roller 714 adapted to the spiral groove 712 is rotatably arranged on the surface of the extended shaft 707. Magnet pieces 24 are provided on the front and rear sides of the assembly block 711, and the two magnet pieces 24 are staggered.
[0036] The top of the first chassis 701 is equidistantly fixedly connected with several limiting sleeves 10. The inside of the limiting sleeve 10 is slidably connected to a limiting post 11, and the top of the limiting post 11 is fixedly connected to the bottom of the horizontal plate 704. A first return spring 12 is fixedly connected between the limiting post 11 and the limiting sleeve 10. The inner wall of the limiting sleeve 10 is provided with a vertical groove 14. The surface of the limiting post 11 is fixedly connected with a slider 13 that slides and adapts to the vertical groove 14. The inner wall of the stepped sleeve 705 is symmetrically provided with two limiting slide grooves 19. The inside of the limiting slide groove 19 is slidably connected to a limiting slide plate 20, and the end of the limiting slide plate 20 is fixedly connected to the surface of the ring cover 706. A second return spring 21 is fixedly connected between the limiting slide plate 20 and the limiting slide groove 19.
[0037] The bottom of the extended shaft 707 has a multi-faceted groove 15, and the top of the sampling cylinder 708 is fixedly connected to a multi-faceted block 16. Several perforated ear plates 17 are fixedly connected to the surfaces of both the extended shaft 707 and the sampling cylinder 708. The perforated ear plates 17 on the same side are connected by bolts 18.
[0038] In a preferred embodiment, to facilitate quick replacement of the sampling cylinder 708 and distribution of the sample-containing sampling cylinder 708 to the collection cylinder 805, the mounting frame 1 is provided with a material dispensing mechanism 8 that is compatible with the flexible assembly mechanism 7. The material dispensing mechanism 8 includes a second base plate 801, which is rotatably disposed at the bottom of the inner cavity of the mounting frame 1. The surfaces of the second base plate 801 and the first base plate 701 are provided with transmission ring grooves 802. The first base plate 701 and the second base plate 801 are connected by a belt 803 through the transmission ring grooves 802. The top of the second base plate 801 is provided with several placement slots 804 at equal intervals. The collection cylinder 805 is placed inside the placement slots 804. The bottom of the inner cavity of the mounting frame 1 is fixedly connected to a convex ring frame 806 by a bracket. The surface of the horizontal plate 704 is rotatably provided with a drag-reducing ring sleeve 807 that is adapted to the convex ring frame 806.
[0039] In a preferred embodiment, to facilitate individual vibration unloading of the sampling cylinder 708, the inner wall of the mounting frame 1 is provided with a self-unloading mechanism 9 that is used in conjunction with the unloading distribution mechanism 8. The self-unloading mechanism 9 includes a slide frame 901, which is fixedly mounted on one side of the inner cavity of the mounting frame 1 by a bracket. A movable support plate 902 is slidably connected inside the slide frame 901. A third return spring 903 is fixedly connected between the movable support plate 902 and the slide frame 901. A striking plate 904 is slidably mounted on one side of the slide frame 901. A push-pull bracket 905 is rotatably connected between the striking plate 904 and the movable support plate 902. A third servo motor 906 is fixedly connected to the top of the slide frame 901. A cam 907 that is used in conjunction with the movable support plate 902 is installed at the end of the output shaft of the third servo motor 906. A guide slide plate 22 is fixedly connected to one side of the striking plate 904. A guide slide groove 23 that is slidably adapted to the guide slide plate 22 is opened inside the slide frame 901.
[0040] The specific operating steps are as follows:
[0041] Geological sample drilling: The first servo motor 5 and the rotating shaft 6 are lowered by the hydraulic telescopic cylinder 3. The lowering of the rotating shaft 6 drives the assembly insert 711 into the stepped sleeve 705. After entering the stepped sleeve 705, the assembly insert 711 immediately enters the assembly inner groove 709 through the assembly port 710. Subsequently, the assembly insert 711 presses the extension shaft 707 down through the assembly inner groove 709. The extension shaft 707 drives the guide roller 714 down. The guide roller 714 descends along the spiral groove 712 and rotates down into the sliding port 713. The downward rotation of the guide roller 714 drives the extension shaft. 707 and the inner assembly groove 709 rotate half a turn, causing the inner assembly groove 709 and the assembly insert 711 to form a cross-shaped limit. Finally, the assembly insert 711 continues to press the extension shaft 707 down. The extension shaft 707 is guided by the trajectory of the guide roller 714 and the sliding passage 713, causing the guide roller 714 to disengage from the sliding passage 713. As the guide roller 714 descends and disengages from the sliding passage 713, the extension shaft 707 will drive the sampling cylinder 708 closer to the ground. Then, the first servo motor 5 drives the sampling cylinder 708 to rotate and drill through the rotating shaft 6 and the extension shaft 707.
[0042] The sample is pulled up, and the rotating shaft 6 separates from the sampling cylinder 708. After drilling is completed, the rotating shaft 6 returns to its original height. When the rotating shaft 6 returns to its original height, the rotating shaft 6 drives the extended shaft 707 and the sampling cylinder 708 to rise through the cross-shaped limit of the assembly insert 711 and the assembly port 710. The rise of the extended shaft 707 drives the guide roller 714 into the interior of the sliding port 713. The guide roller 714 will enter the interior of the spiral groove 712 as it continues to rise, causing the guide roller 714 to drive the extended shaft 707 to rotate upward and return to its original position. The extended shaft 707 simultaneously drives the assembly inner groove 709 and the assembly port 710 to rotate and return to their original position, so that the assembly port 710 and the assembly insert 711 are aligned. This causes the rotating shaft 6 to disconnect from the extended shaft 707 during subsequent lifting, until the rotating shaft 6 carries the assembly insert 711 to the top of the stepped sleeve 705.
[0043] Sample cylinder quick change: After the front sampling cylinder 708 obtains the sample and disconnects from the rotating shaft 6, the first chassis 701 is driven to rotate at equal intervals by the second servo motor 702, causing the first chassis 701 to change the next stepped sleeve 705 and sampling cylinder 708 to the front sampling area. At the same time, the front horizontal plate 704, stepped sleeve 705 and sampling cylinder 708 will rotate to the right side. During the rotation of the front horizontal plate 704, the horizontal plate 704 will be supported by the high point of the convex ring frame 806, causing the horizontal plate 704 to carry the stepped sleeve 705 and sampling cylinder 708 in the lifting state and rotate to the top of the corresponding position collection cylinder 805.
[0044] Secondly, the rotation of the first chassis 701 synchronously drives the rotation of the second chassis 801 through the transmission ring groove 802 and the belt 803. The rotation of the second chassis 801 will synchronously transfer the unloaded collection cylinder 805 to the bottom of the sampling cylinder 708 on the right side.
[0045] Split-type vibrating material: After the front sampling cylinder 708 obtains the sample and disconnects from the rotating shaft 6, and rotates to the right side, the third servo motor 906 is started. The third servo motor 906 drives the cam 907 to rotate. The cam 907 presses the movable tray 902 repeatedly, causing the movable tray 902 to push the striking plate 904 repeatedly through the push-pull bracket 905 to strike the sampling cylinder 708 on the right side until the sampling cylinder 708 drops the columnar sample into the corresponding collection cylinder 805.
Claims
1. A geological surveying and mapping borehole sampling device, comprising a mounting frame (1) and a mounting bracket (2), wherein the mounting bracket (2) is fixedly disposed on the top of the mounting frame (1), characterized in that: The mounting frame (2) is fixedly connected to a hydraulic telescopic cylinder (3), and the bottom of the extension end of the hydraulic telescopic cylinder (3) is fixedly connected to a mounting shell (4). The mounting shell (4) is installed inside a first servo motor (5), and the output shaft of the first servo motor (5) is fixedly connected to a rotating shaft (6) through a coupling. The mounting frame (1) is provided with a flexible assembly mechanism (7), and the mounting frame (1) is provided with a material unloading and distribution mechanism (8) that is used in conjunction with the flexible assembly mechanism (7). The inner wall of the mounting frame (1) is provided with a self-unloading mechanism (9) that is used in conjunction with the material unloading and distribution mechanism (8). The flexible assembly mechanism (7) includes a first chassis (701), which is rotatably mounted on the bottom of the inner cavity of the mounting frame (1). A second servo motor (702) is fixedly connected to the top of the inner cavity of the mounting frame (1). The output shaft of the second servo motor (702) is fixedly connected to a rotating roller (703) via a coupling. The bottom of the rotating roller (703) is fixedly connected to the top of the first chassis (701). Several horizontal plates (704) are slidably arranged around the top of the first chassis (701). A stepped sleeve (705) is fixedly connected to the end of the horizontal plate (704). An annular cover (706) is slidably arranged inside the stepped sleeve (705). An extension shaft (707) is rotatably arranged inside the annular cover (706). The bottom of the extension shaft (707) is... The part is equipped with a sampling cylinder (708), the inside of the extended shaft (707) is provided with an assembly groove (709), the top of the extended shaft (707) is provided with an assembly port (710) that communicates with the assembly groove (709), the bottom of the rotating shaft (6) is fixedly connected with a cylinder (715), the bottom of the cylinder (715) is fixedly connected with an assembly insert (711) that matches the assembly port (710), the inner wall of the stepped sleeve (705) is provided with a spiral groove (712), two spiral grooves (712) are arranged around it, the inner wall of the stepped sleeve (705) is provided with a sliding port (713) that communicates with the spiral groove (712), and the surface of the extended shaft (707) is rotatably provided with a guide roller (714) that matches the spiral groove (712). The material distribution mechanism (8) includes a second chassis (801), which is rotatably disposed at the bottom of the inner cavity of the mounting frame (1). The surfaces of the second chassis (801) and the first chassis (701) are provided with transmission ring grooves (802). A belt (803) is connected between the first chassis (701) and the second chassis (801) through the transmission ring grooves (802). The top of the second chassis (801) is provided with several placement grooves (804) at equal intervals. A collection cylinder (805) is placed inside the placement grooves (804). A convex ring frame (806) is fixedly connected to the bottom of the inner cavity of the mounting frame (1) through a bracket. A drag-reducing ring sleeve (807) that is adapted to the convex ring frame (806) is rotatably disposed on the surface of the horizontal plate (704). The self-unloading mechanism (9) includes a slide frame (901), which is fixedly mounted on one side of the inner cavity of the mounting frame (1) by a bracket. A movable support plate (902) is slidably connected inside the slide frame (901). A third return spring (903) is fixedly connected between the movable support plate (902) and the slide frame (901). A striking plate (904) is slidably mounted on one side of the slide frame (901). A push-pull bracket (905) is rotatably connected between the striking plate (904) and the movable support plate (902). A third servo motor (906) is fixedly connected to the top of the slide frame (901). A cam (907) that is used in conjunction with the movable support plate (902) is installed at the end of the output shaft of the third servo motor (906).
2. The geological mapping and geological content drilling sampling device according to claim 1, characterized in that: The top of the first chassis (701) is equidistantly connected with several limiting sleeves (10). The inside of the limiting sleeve (10) is slidably connected with a limiting post (11), and the top of the limiting post (11) is fixedly connected to the bottom of the horizontal plate (704). A first reset spring (12) is fixedly connected between the limiting post (11) and the limiting sleeve (10). The inner wall of the limiting sleeve (10) is provided with a vertical groove (14). The surface of the limiting post (11) is fixedly connected with a slider (13) that slides and adapts to the vertical groove (14).
3. The geological surveying and mapping borehole sampling device according to claim 2, characterized in that: The bottom of the extended shaft (707) has a multi-faceted groove (15), and the top of the sampling tube (708) is fixedly connected to a multi-faceted block (16). Several perforated ear plates (17) are fixedly connected to the surfaces of the extended shaft (707) and the sampling tube (708). The perforated ear plates (17) on the same side are connected by bolts (18).
4. A borehole sampling device for geological mapping and geological content sampling according to claim 3, characterized in that: The inner wall of the stepped sleeve (705) has two symmetrically opened limiting grooves (19). The limiting grooves (19) are slidably connected to the limiting slide plate (20), and the end of the limiting slide plate (20) is fixedly connected to the surface of the ring cover (706). A second return spring (21) is fixedly connected between the limiting slide plate (20) and the limiting groove (19).
5. A borehole sampling device for geological mapping and geological content sampling according to claim 4, characterized in that: A guide slide plate (22) is fixedly connected to one side of the striking plate (904), and a guide slide groove (23) is provided inside the slide frame (901) to slide and adapt to the guide slide plate (22).
6. A borehole sampling device for geological mapping and geological content sampling according to claim 5, characterized in that: The assembly insert (711) is provided with magnet pieces (24) on both the front and rear sides, and the two magnet pieces (24) are staggered.
7. A borehole sampling device for geological mapping and geological content sampling according to claim 6, characterized in that: Both sides of the mounting frame (1) are fixedly connected to several electric telescopic rods (25) by brackets, and the bottom of the extension ends of several electric telescopic rods (25) on the same side are jointly installed with pulley assemblies (26).