Drilling sampling device for mine geological surveying and mapping

Abstract

The invention discloses a drilling sampling device for mine geological surveying and mapping, and relates to the field of geological surveying and mapping equipment.The drilling sampling device comprises a switching sampling barrel, an outer barrel is installed at the top of the switching sampling barrel, a butt joint seat is installed at the end, away from the switching sampling barrel, of the outer barrel, and a connecting column is fixedly arranged at the end of the butt joint seat; a switching soil sampling mechanism is inserted into the switching sampling cylinder, a soft soil sampling head is fixedly arranged at one end of the switching soil sampling mechanism, and a hard soil sampling head is fixedly arranged at the other end of the switching soil sampling mechanism. According to the drilling sampling device for mine geological surveying and mapping, a hard soil sampling head and a soft soil sampling head are arranged on the switching soil sampling mechanism, rigid and compact soil can be sampled through the hard soil sampling head, and soft soil can be sampled through the soft soil sampling head, so that the sampling efficiency is improved, and the sampling efficiency is improved. Special sampling heads are used for soil with different textures, and the sampling speed can be remarkably increased.

Description

Technical Field

[0001] The present invention relates to the field of geological surveying and mapping equipment, in particular to a drilling sampling device for mine geological surveying and mapping. Background Art

[0002] At present, when conducting geological exploration on mines, drilling sampling is often required so that the samples can be sent to the laboratory for detailed analysis to provide a basis for mining. However, since the samples under the drilling in the mine are mostly hard rocks, the current sampling is generally carried out by using impact methods such as percussion drills to impact the samples into fragments, and then the samples are taken out from the well. The samples extracted by this method vary in size and shape. The impact method will make the samples smaller and more fragmented, affecting the subsequent analysis ability and analysis effect of the samples.

[0003] To solve the above problems, after searching, a Chinese patent with publication number CN112627754A discloses a geological exploration drilling and sampling device for smart mines, which includes a sampling connection seat, a head seat, a central sampling drill barrel and a plurality of auxiliary knife groups, wherein one end of the sampling connection seat is detachably connected to the end of the drill rod, and the other end of the sampling connection seat is fixedly connected to the head seat with a cylindrical structure, a central cylindrical hole is provided at the center of the head seat, and the central sampling drill barrel is retractably provided in the central cylindrical hole. It is characterized in that the central sampling drill barrel can be hidden in the central cylindrical hole and the lower end can extend downward from the central cylindrical hole. A plurality of auxiliary knife groups are arranged in a circumferential array on the head seat, and the auxiliary knife groups can each move along the radial direction of the head seat so as to move toward or away from the central sampling drill barrel. Each auxiliary knife group includes a movable drive seat, a drilling disk, a drill bit and a cutting knife, wherein the movable drive seat and the head seat are slidably connected;

[0004] Although the above-mentioned device can realize rapid sampling of cylindrical samples through the sampling connecting seat, head seat, central sampling drill barrel and multiple auxiliary knife groups, and the auxiliary knife groups can each move along the radial direction of the head seat so as to move toward or away from the central sampling drill barrel, and the diameter size or model of the central sampling drill barrel can be replaced to facilitate sampling of different sample sizes as needed, but in actual use, when conducting geological surveys, it is often necessary to go to some remote areas with inconvenient transportation and complex terrain, such as deep mountains, deserts, jungles, etc.; the bulky equipment is difficult to pass through narrow mountain roads, rugged trails or swamps, etc., and may require a lot of manpower and material resources to carry, or even fail to reach the target location, thereby affecting the progress of the survey work. Summary of the Invention

[0005] The object of the present invention is to provide a drilling sampling device for mine geological mapping to solve the defects mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, a drilling sampling device for mine geological mapping is provided, including a switching sampling tube, an outer tube is installed on the top of the switching sampling tube, a docking seat is installed at the end of the outer tube away from the switching sampling tube, a connecting column is fixedly provided at the end of the docking seat, a switching soil sampling mechanism is inserted into the interior of the switching sampling tube, a soft soil sampling head is fixedly provided at one end of the switching soil sampling mechanism, a hard soil sampling head is fixedly provided at the other end of the switching soil sampling mechanism, and a force-bearing foot pedal mechanism is sleeved in the middle of the switching sampling tube.

[0007] Furthermore, a load-bearing column is fixedly provided at the end of the connecting column. The load-bearing column is hollow. Multiple groups of load-bearing rings are evenly fixed on the circumferential outer wall of the load-bearing column. The load-bearing rings are made of rubber, and the distance between two adjacent groups of load-bearing rings is consistent.

[0008] Furthermore, a connecting rod is movably inserted into the interior of the load-bearing column, a handle is fixedly provided on the top of the connecting rod, the handle and the connecting rod are arranged in a "T" shape, and multiple groups of guard rings are evenly fixed on the outer side of the circumference of the handle, and the guard rings are annular structures made of rubber material; the connecting rod is inserted into the interior of the load-bearing column and fixed by bolts.

[0009] Furthermore, the force-bearing foot pedal mechanism includes an adjusting threaded barrel, a positioning nut A, a positioning nut B, a fixing ring, a guide seat, a limit seat and a pedal. The adjusting threaded barrel is arranged between the outer barrel and the switching sampling barrel. The outer side of the adjusting threaded barrel is sleeved with a fixing ring, and the inner diameter of the fixing ring is larger than the diameter of the adjusting threaded barrel.

[0010] Furthermore, a positioning nut A is provided on the upper side of the fixing ring, and a positioning nut B is provided on the lower side of the fixing ring. The positioning nut B and the positioning nut A are respectively screwed on the outside of the adjusting threaded barrel, and the fixing ring on the adjusting threaded barrel is positioned by the positioning nut B and the positioning nut A.

[0011] Furthermore, a pedal is fixedly provided on the circumferential outer wall of the fixing ring. The pedal is rectangular and a plurality of groups of anti-slip strips are evenly and fixedly provided on the surface of the pedal at equal intervals.

[0012] Furthermore, two groups of relatively distributed guide seats and limit seats are fixedly arranged on the circumferential inner wall of the fixed ring. The guide seats and limit seats are arranged in an arc shape. The guide seats cover the circumferential outer wall of the soft soil sampling head, and the limit seats are slidably arranged on the circumferential inner wall of the adjusting threaded cylinder.

[0013] Furthermore, switching ports are provided on both sides of the bottom of the switching sampling tube, and a locking port is provided at the bottom of the switching port. A locking platform is provided on the locking port. The sizes of the locking platform and the locking port are matched. The locking platform is clamped inside the locking port and locked by two sets of bolts. Both the locking platform and the locking port are rectangular.

[0014] Furthermore, the switching soil sampling mechanism includes a fixing seat, a locking platform, a hard soil sampling head and a soft soil sampling head. A switching port is provided on the upper side of the locking platform, and the width of the switching port is greater than the length of the locking platform; the length of the soft soil sampling head and the hard soil sampling head are the same, and the cross-sectional diameter of the soft soil sampling head and the hard soil sampling head are the same; a tip is provided at the end of the soft soil sampling head, and a sampling port is provided on the circumferential outer wall of the soft soil sampling head, and the sampling port is set in a "U" shape.

[0015] Furthermore, the fixing seat is cylindrical, a soft soil sampling head is fixedly provided at one end of the fixing seat, a hard soil sampling head is fixedly provided at the end of the fixing seat away from the soft soil sampling head, locking platforms are fixedly provided on both side walls of the fixing seat, the bottom of the locking platform is covered with an end seat, and the end seat is screwed to the bottom of the locking port.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The sampling device of the present invention mainly consists of three parts: a tubular load-bearing column, an outer cylinder, and a switching soil sampling mechanism. The light and compact design makes it easier for operators to hold or carry the device during sampling, reducing labor intensity. This is especially convenient for operators to move and operate when sampling requires long periods of time or in complex terrain environments, thereby improving sampling efficiency. The compact design is conducive to use in various spatial environments, whether in open fields, relatively narrow indoor spaces, or even in some hard-to-reach corners, and can more conveniently carry out sampling work without spatial restrictions.

[0018] 2. The present invention utilizes a pedal on a force-bearing foot mechanism with adjustable height. Different operators have different heights, leg lengths, and exertion habits. This height-adjustable pedal allows each operator to adjust the pedal to the most suitable height based on their physical condition, allowing them to exert force more comfortably and naturally when stepping on it, thereby improving operational convenience and efficiency and reducing physical fatigue or inconvenience caused by an inappropriate pedal height. In different sampling environments, soil texture, hardness, and sampling depth requirements may vary.

[0019] 3. The present invention is equipped with a hard soil sampling head and a soft soil sampling head on a switching soil sampling mechanism. The hard soil sampling head can be used to sample relatively rigid and compact soils, while the soft soil sampling head can be used to sample relatively loose soils. Using specialized sampling heads for soils of different textures can significantly improve the sampling speed; different sampling heads can better adapt to the characteristics of the corresponding soils, thereby ensuring that the collected samples are more representative and complete; the hard soil sampling head can avoid deformation, damage, or incomplete sampling of the sampling head when sampling in hard soils. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view schematic diagram of the structure of the present invention;

[0021] Figure 2 A bottom view of the structure of the present invention;

[0022] Figure 3 A top view of the structure of the present invention;

[0023] Figure 4 It is a rear view of the local structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the outer cylinder and its internal structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the force-bearing pedal mechanism of the present invention;

[0026] Figure 7 The structure of the present invention Figure 5 Bottom view of

[0027] Figure 8 Schematic diagram of the structural switching soil sampling mechanism of the present invention.

[0028] [reference numerals]

[0029] 1. Handle; 2. Guard ring; 3. Connecting rod; 4. Load-bearing column; 41. Load-bearing ring; 5. Connecting column; 6. Docking seat; 7. Outer cylinder; 8. Load-bearing foot pedal mechanism; 80. Adjusting threaded cylinder; 81. Positioning nut A; 82. Positioning nut B; 83. Fixing ring; 831. Guide seat; 832. Limit seat; 84. Pedal; 9. Switching sampling cylinder; 10. Switching port; 101. Locking port; 11. End seat; 12. Switching soil sampling mechanism; 121. Fixing seat; 122. Locking platform; 123. Hard soil sampling head; 124. Soft soil sampling head; 1241. Tip; 1242. Sampling port. DETAILED DESCRIPTION

[0030] Specific implementation method 1: Please refer to Figures 1-8The present invention provides a technical solution: a drilling sampling device for mine geological surveying, comprising a switching sampling tube 9, an outer tube 7 is installed on the top of the switching sampling tube 9, a docking seat 6 is installed at the end of the outer tube 7 away from the switching sampling tube 9, a connecting column 5 is fixedly provided at the end of the docking seat 6, a switching soil sampling mechanism 12 is inserted into the interior of the switching sampling tube 9, a soft soil sampling head 124 is fixedly provided at one end of the switching soil sampling mechanism 12, a hard soil sampling head 123 is fixedly provided at the other end of the switching soil sampling mechanism 12, and a force-bearing foot pedal mechanism 8 is sleeved in the middle of the switching sampling tube 9.

[0031] Working principle: When conducting drilling sampling, the sampling device is mainly composed of three parts: a tubular load-bearing column 4, an outer cylinder 7 and a switching soil sampling mechanism 12. The device is light and compact, and the light shape allows the operator to hold or carry the device more easily when sampling, reducing labor intensity, especially when long-term operations or sampling in complex terrain environments, which is convenient for operators to move and operate, thereby improving sampling efficiency; the compact design is conducive to use in different spatial environments, whether in open fields or relatively narrow indoor spaces, or even in some hard-to-reach corners, sampling work can be carried out more conveniently without being restricted by space; the disturbance to the surrounding soil is small during the sampling process; in particular, the design of the tubular switching soil sampling mechanism 12 can be inserted into the soil more accurately, reducing damage to the soil structure and vegetation around the sampling point, which is beneficial to protecting the ecological environment of the sampling site, and also helps to obtain more representative soil samples; because the device is light, during placement and operation, the disturbance to the ground is small The pressure is relatively small, and it is not easy to leave obvious indentations or damage the ground in the sampling area. It is especially suitable for sampling occasions with high environmental requirements, such as nature reserves, archaeological sites, etc. The tubular load-bearing column 4 can provide stable support and guidance to ensure that the device is vertically inserted into the soil during the sampling process, avoiding sampling deviations caused by tilting or shaking, thereby improving the sampling accuracy; the lightweight and compact design uses relatively less material, which not only reduces the manufacturing cost of the device, but also saves space and costs during transportation and storage; the structure is relatively simple and the number of parts is small, making the maintenance and maintenance of the device easier; operators can more conveniently inspect, clean, repair and replace each component, reducing maintenance costs and maintenance time, and increasing the service life and reliability of the device; the design of the switching soil sampling mechanism enables the sampling method to be flexibly switched or the sampling components to be replaced according to different soil depths and types during the sampling process, which helps to obtain more accurate and representative soil samples and improve the sampling quality;

[0032] The setting of the force-bearing foot pedal mechanism 8 can facilitate the pressing of the sampling head on the switching soil sampling mechanism 12 into the soil where sampling is required. The height of the pedal 84 on the force-bearing foot pedal mechanism 8 is adjustable. The height, leg length and force habits of different operators are different. The adjustable height of the pedal 84 allows each operator to adjust the pedal 84 to the height that best suits them according to their own physical conditions, so that they can exert force more comfortably and naturally when stepping on it, thereby improving the convenience and efficiency of operation and reducing physical fatigue or inconvenience caused by inappropriate height of the pedal 84. In different sampling environments, the texture, hardness and sampling depth requirements of the soil may be different. For example, sampling in soft soil may not require too much pedaling force, and the height of the pedal 84 can be appropriately lowered to facilitate the operator to step on it easily. When sampling in hard soil, greater force is required to press the sampling head into the soil. By raising the pedal 84, the operator can use greater leg strength to step on it, and more effectively press the sampling head into the deep soil to meet the needs of different sampling scenarios; by adjusting the height of the pedal 84, the operator can find the most suitable force angle and strength, so as to more stably and accurately control the depth and position of the sampling head pressed into the soil; this helps to ensure that the sampling depth is consistent and the sampling position is accurate each time, improves the accuracy of sampling and the representativeness of the sample, and avoids deviations in the sampling depth or position due to inappropriate height of the pedal 84, which affects subsequent soil analysis and research results; the specific adjustment method of the pedal 84 is: first, after the position of the pedal 84 is determined, the positioning nut A81 and the positioning nut B82 are rotated, and the positioning nut A81 and the positioning nut B82 are screwed and fixed to the upper and lower surfaces of the pedal 84 respectively, to ensure the stability of the pedal 84 during operation and prevent it from shaking;

[0033] The switching soil sampling mechanism 12 is respectively provided with a hard soil sampling head 123 and a soft soil sampling head 124. The hard soil sampling head 123 can be used to sample relatively rigid and compact soil, and the soft soil sampling head 124 can be used to sample relatively loose soil. Using special sampling heads for soils of different textures can significantly improve the sampling speed. For example, the hard soil sampling head 123 is sturdy in design and has a spiral shape, which can be manually pressed down and rotated for sampling. It has strong penetrating power and will not be difficult to insert due to the hardness of the soil when collecting compacted soil, and the sampling can be completed quickly. The soft soil sampling head 124 is provided with a pointed end 1241 at its end and a sampling port 1242 on its surface. The setting of the sampling port 1242 makes it easy to take out the soil inside the tubular soft soil sampling head 124, so that it can be gently inserted into the soft soil to be collected, preventing the soil sample from being lost during the collection process due to excessive Different sampling heads can better adapt to the characteristics of the corresponding soil, thereby ensuring that the collected samples are more representative and complete; the hard soil sampling head 123 can avoid deformation, damage or incomplete samples of the sampling head when sampling in hard soil; the soft soil sampling head 124 can prevent the loose soil from being scattered, lost or structurally destroyed during sampling, so that the collected soft soil samples maintain their original structure and composition, which is conducive to subsequent accurate analysis and research; the sampling device can be applied to a variety of different types of soil environments, whether it is compacted soil in arid areas, soft soil in humid areas, or areas with mixed soils of different textures, by switching the sampling head to perform effective sampling, expand the application range of the sampling equipment, improve the practicability and economy of the equipment, and reduce the cost of replacing different sampling equipment due to different soil textures;

[0034] The switching method of the hard soil sampling head 123 and the soft soil sampling head 124 on the soil sampling mechanism 12 is as follows: the locking platform 122 is pulled out from the inside of the locking port 101, so that the locking platform 122 moves to the inside of the switching port 10. Since the width of the switching port 10 is greater than the length of the locking platform 122, the locking platform 122 can rotate inside the switching port 10. At this time, the hard soil sampling head 123 rotates to the inside of the outer cylinder 7, and the soft soil sampling head 124 moves to the bottom of the switching sampling cylinder 9. The soft soil sampling head 124 is switched for use. The locking platform 122 can be locked inside the locking port 101 by bolts to ensure the stability of the hard soil sampling head 123 and the soft soil sampling head 124 when they are pressed down for sampling. At the same time, the locking port 101 can also be designed to be above the switching port 10, so that when the hard soil sampling head 123 and the soft soil sampling head 124 are pressed down, the locking platform 122 is pressed inside the locking port 101. While ensuring the stability of the hard soil sampling head 123 and the soft soil sampling head 124 when working, it is impossible to install bolts to fix the locking platform 122 and the locking port 101.

[0035] Specific embodiment 2: This embodiment is a further limitation of specific embodiment 1. A force-bearing column 4 is fixedly provided at the end of the connecting column 5. The force-bearing column 4 is hollow. A plurality of groups of force rings 41 are evenly fixed on the circumferential outer wall of the force column 4. The force rings 41 are made of rubber, and the distance between two adjacent groups of force rings 41 is consistent.

[0036] Specific embodiment three: This embodiment is a further limitation of specific embodiment two, a connecting rod 3 is movably inserted into the interior of the load-bearing column 4, a handle 1 is fixedly provided on the top of the connecting rod 3, the handle 1 and the connecting rod 3 are arranged in a "T" shape, and multiple groups of guard rings 2 are evenly fixed on the outer side of the circumference of the handle 1, and the guard ring 2 is a ring structure made of rubber material; the connecting rod 3 is inserted into the interior of the load-bearing column 4 and fixed by bolts.

[0037] Specific embodiment four: This embodiment is a further limitation of specific embodiment one. The force-bearing foot pedal mechanism 8 includes an adjusting threaded barrel 80, a positioning nut A81, a positioning nut B82, a fixing ring 83, a guide seat 831, a limit seat 832 and a pedal 84. The adjusting threaded barrel 80 is arranged between the outer barrel 7 and the switching sampling barrel 9. The outer side of the adjusting threaded barrel 80 is sleeved with a fixing ring 83, and the inner diameter of the fixing ring 83 is larger than the diameter of the adjusting threaded barrel 80.

[0038] Specific embodiment five: This embodiment is a further limitation of specific embodiment four. A positioning nut A81 is provided on the upper side of the fixing ring 83, and a positioning nut B82 is provided on the lower side of the fixing ring 83. The positioning nut B82 and the positioning nut A81 are respectively screwed on the outer side of the adjusting threaded barrel 80, and the fixing ring 83 on the adjusting threaded barrel 80 is positioned by the positioning nut B82 and the positioning nut A81.

[0039] Specific embodiment six: This embodiment is a further limitation of specific embodiment five. A pedal 84 is fixedly provided on the circumferential outer wall of the fixing ring 83. The pedal 84 is rectangular, and a plurality of groups of equidistant anti-slip strips are evenly fixed on the surface of the pedal 84.

[0040] Specific embodiment seven: This embodiment is a further limitation of specific embodiment six. Two groups of relatively distributed guide seats 831 and limit seats 832 are fixedly provided on the circumferential inner wall of the fixing ring 83. The guide seats 831 and the limit seats 832 are arranged in an arc shape. The guide seat 831 covers the circumferential outer wall of the soft soil sampling head 124, and the limit seat 832 is slidably provided on the circumferential inner wall of the adjusting threaded cylinder 80.

[0041] Specific embodiment eight: This embodiment is a further limitation of specific embodiment one. Switching ports 10 are provided on both sides of the bottom of the switching sampling cylinder 9. A locking port 101 is provided at the bottom of the switching port 10. A locking platform 122 is provided on the locking port 101. The sizes of the locking platform 122 and the locking port 101 are adapted to each other. The locking platform 122 is clamped inside the locking port 101 and is locked by two sets of bolts. The locking platform 122 and the locking port 101 are both rectangular.

[0042] Specific embodiment nine: This embodiment is a further limitation of specific embodiment one. The switching soil sampling mechanism 12 includes a fixing seat 121, a locking platform 122, a hard soil sampling head 123 and a soft soil sampling head 124. A switching port 10 is provided on the upper side of the locking platform 122, and the width of the switching port 10 is greater than the length of the locking platform 122; the length of the soft soil sampling head 124 and the hard soil sampling head 123 are the same, and the cross-sectional diameter of the soft soil sampling head 124 and the hard soil sampling head 123 are the same; a tip 1241 is provided at the end of the soft soil sampling head 124, and a sampling port 1242 is provided on the circumferential outer wall of the soft soil sampling head 124, and the sampling port 1242 is "U"-shaped.

[0043] Specific embodiment ten: This embodiment is a further limitation of specific embodiment nine. The fixing seat 121 is cylindrical, and a soft soil sampling head 124 is fixedly provided at one end of the fixing seat 121, and a hard soil sampling head 123 is fixedly provided at the end of the fixing seat 121 away from the soft soil sampling head 124. Locking platforms 122 are fixedly provided on both side walls of the fixing seat 121, and the bottom of the locking platform 122 is covered with an end seat 11, which is screwed to the bottom of the locking port 101.

Claims

1. A drilling sampling device for mine geological surveying, comprising a switching sampling cylinder (9), characterized in that: An outer cylinder (7) is installed on the top of the switching sampling cylinder (9), a docking seat (6) is installed at one end of the outer cylinder (7) away from the switching sampling cylinder (9), a connecting column (5) is fixedly provided at the end of the docking seat (6), a switching soil sampling mechanism (12) is inserted into the interior of the switching sampling cylinder (9), a soft soil sampling head (124) is fixedly provided at one end of the switching soil sampling mechanism (12), a hard soil sampling head (123) is fixedly provided at the other end of the switching soil sampling mechanism (12), and a force-bearing pedal mechanism (8) is sleeved on the middle part of the switching sampling cylinder (9).

2. A drilling sampling device for mine geological surveying and mapping according to claim 1, characterized in that: A load-bearing column (4) is fixedly provided at the end of the connecting column (5); the load-bearing column (4) is hollow; a plurality of groups of load-bearing rings (41) are evenly fixedly provided on the circumferential outer wall of the load-bearing column (4); the load-bearing rings (41) are made of rubber material; and the distance between two adjacent groups of load-bearing rings (41) is consistent.

3. The drilling sampling device for mine geological surveying according to claim 2, characterized in that: A connecting rod (3) is movably inserted into the interior of the load-bearing column (4); a handle (1) is fixedly provided on the top of the connecting rod (3); the handle (1) and the connecting rod (3) are arranged in a "T" shape; a plurality of groups of retaining rings (2) are evenly fixedly provided on the outer circumference of the handle (1); the retaining rings (2) are annular structures made of rubber material; the connecting rod (3) is inserted into the interior of the load-bearing column (4) and fixed by bolts.

4. The drilling sampling device for mine geological surveying according to claim 1, characterized in that: The force-bearing pedal mechanism (8) comprises an adjusting threaded barrel (80), a positioning nut A (81), a positioning nut B (82), a fixing ring (83), a guide seat (831), a limiting seat (832) and a pedal (84). The adjusting threaded barrel (80) is arranged between the outer barrel (7) and the switching sampling barrel (9). The outer side of the adjusting threaded barrel (80) is sleeved with a fixing ring (83), and the inner diameter of the fixing ring (83) is larger than the diameter of the adjusting threaded barrel (80).

5. The drilling sampling device for mine geological surveying according to claim 4, characterized in that: A positioning nut A (81) is provided on the upper side of the fixing ring (83), and a positioning nut B (82) is provided on the lower side of the fixing ring (83). The positioning nut B (82) and the positioning nut A (81) are respectively screwed onto the outer side of the adjusting threaded barrel (80). The fixing ring (83) on the adjusting threaded barrel (80) is positioned by the positioning nut B (82) and the positioning nut A (81).

6. The drilling sampling device for mine geological surveying according to claim 5, characterized in that: A pedal (84) is fixedly provided on the circumferential outer wall of the fixing ring (83), the pedal (84) is rectangular, and a plurality of groups of anti-slip strips arranged at equal intervals are evenly fixedly provided on the surface of the pedal (84).

7. The drilling sampling device for mine geological mapping according to claim 6, characterized in that: Two groups of relatively distributed guide seats (831) and limit seats (832) are fixedly arranged on the circumferential inner wall of the fixing ring (83), respectively. The guide seats (831) and the limit seats (832) are arranged in an arc shape. The guide seats (831) cover the circumferential outer wall of the soft soil sampling head (124), and the limit seats (832) are slidably arranged on the circumferential inner wall of the adjusting threaded cylinder (80).

8. The drilling sampling device for mine geological surveying according to claim 1, characterized in that: The switching sampling cylinder (9) is provided with a switching port (10) on both sides of the bottom thereof, a locking port (101) is provided at the bottom of the switching port (10), a locking platform (122) is provided on the locking port (101), the sizes of the locking platform (122) and the locking port (101) are adapted to each other, the locking platform (122) is clamped inside the locking port (101) and is locked by two sets of bolts, and the locking platform (122) and the locking port (101) are both rectangular.

9. The drilling sampling device for mine geological surveying and mapping according to claim 1, characterized in that: The switching soil sampling mechanism (12) comprises a fixing seat (121), a locking platform (122), a hard soil sampling head (123) and a soft soil sampling head (124); a switching port (10) is provided on the upper side of the locking platform (122); the width of the switching port (10) is greater than the length of the locking platform (122); the lengths of the soft soil sampling head (124) and the hard soil sampling head (123) are the same; the cross-sectional diameters of the soft soil sampling head (124) and the hard soil sampling head (123) are the same; a tip portion (1241) is provided at the end of the soft soil sampling head (124); a sampling port (1242) is provided on the circumferential outer wall of the soft soil sampling head (124); and the sampling port (1242) is arranged in a "U" shape.

10. The drilling sampling device for mine geological surveying and mapping according to claim 9, characterized in that: The fixing seat (121) is cylindrical, a soft soil sampling head (124) is fixedly provided at one end of the fixing seat (121), a hard soil sampling head (123) is fixedly provided at one end of the fixing seat (121) away from the soft soil sampling head (124), locking platforms (122) are fixedly provided on both side walls of the fixing seat (121), the bottom of the locking platform (122) is covered with an end seat (11), and the end seat (11) is screwed to the bottom of the locking port (101).

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