A drilling sampling device for mine geological mapping

Abstract

The application 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 cylinder, the top of the switching sampling cylinder is provided with an outer cylinder, the end of the outer cylinder, which is far away from the switching sampling cylinder, is provided with a docking seat, the end of the docking seat is fixedly provided with a connecting column, the inside of the switching sampling cylinder is inserted with a switching soil sampling mechanism, one end of the switching soil sampling mechanism is fixedly provided with a soft soil sampling head, and the other end of the switching soil sampling mechanism is fixedly provided with a hard soil sampling head.The drilling sampling device for mine geological surveying and mapping is provided with the hard soil sampling head and the soft soil sampling head on the switching soil sampling mechanism, the hard soil sampling head can be used for sampling the relatively rigid and compact soil, the soft soil sampling head can be used for sampling the relatively soft soil, the special sampling head is used for the soil with different textures, and the sampling speed can be obviously improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of geological surveying equipment, in particular to a drilling sampling device for mine geological surveying. BACKGROUND

[0002] At present, when carrying out geological exploration on a mine, drilling sampling is often needed so as to carry out detailed analysis on the sampled samples in the laboratory, and then provide basis for mine exploitation. However, since the samples under the drillings on the mine are mostly hard rocks, the current sampling generally uses the impact mode of impact drill to impact the samples into fragments, and then the samples are taken out from the underground. The samples extracted by this mode are of different sizes, and the shapes are irregular. The impact mode makes the samples smaller and more fragmented, which affects the subsequent analysis ability and analysis effect of the samples.

[0003] In order to solve the above problems, through retrieval, the Chinese patent with publication number CN112627754A discloses a geological exploration drilling sampling device for intelligent mine. The device includes a sampling connecting seat, a head seat, a center sampling drill cylinder and a plurality of auxiliary knife groups. One end of the sampling connecting seat is detachably connected to the end of the drill rod. The other end of the sampling connecting seat is fixedly connected with the head seat of cylindrical structure. A center cylindrical hole is arranged at the center of the head seat. The center sampling drill cylinder is arranged in the center cylindrical hole in an extendable manner. The center sampling drill cylinder can be hidden in the center cylindrical hole, and the lower end can extend out of the center cylindrical hole. A plurality of auxiliary knife groups are arranged in a circumferential array on the head seat. Each auxiliary knife group can move along the radial direction of the head seat so as to move towards or away from the center sampling drill cylinder. Each auxiliary knife group includes a moving drive seat, a drilling disc, a drill bit and a cutting knife. The moving drive seat is slidably connected with the head seat.

[0004] The above device can realize rapid sampling of cylindrical samples through the sampling connecting seat, the head seat, the center sampling drill cylinder and the plurality of auxiliary knife groups. The auxiliary knife groups can move along the radial direction of the head seat so as to move towards or away from the center sampling drill cylinder. The diameter or model of the center sampling drill cylinder can be replaced so as to sample different sample sizes according to needs. However, in actual use, when carrying out geological exploration, it is often necessary to go to some remote areas with inconvenient transportation and complex terrain, such as deep mountains, deserts and jungles. The bulky equipment is difficult to pass through narrow mountain roads, rugged paths or marshy areas, and may need to consume a lot of manpower and material resources for transportation, or even cannot reach the target location, thereby affecting the development of exploration work. SUMMARY

[0005] The drilling sampling device for mine geological mapping aims to solve the defects mentioned in the background.

[0006] To achieve the above-mentioned purpose, the drilling sampling device for mine geological mapping comprises a switching sampling cylinder, the top of the switching sampling cylinder is provided with an outer cylinder, the end of the outer cylinder away from the switching sampling cylinder is provided with a docking seat, the end of the docking seat is fixedly provided with a connecting column, the inside of the switching sampling cylinder is inserted with a switching soil sampling mechanism, one end of the switching soil sampling mechanism is fixedly provided with a soft soil sampling head, the other end of the switching soil sampling mechanism is fixedly provided with a hard soil sampling head, and the middle part of the switching sampling cylinder is sleeved with a stress foot pedal mechanism.

[0007] Further, the end of the connecting column is fixedly provided with a stress column, the stress column is hollow, a plurality of groups of stress rings are uniformly fixedly arranged on the circumferential outer wall of the stress column, the stress rings are made of rubber, and the distance between adjacent two groups of stress rings is consistent.

[0008] Further, the inside of the stress column is movably inserted with a connecting rod, the top of the connecting rod is fixedly provided with a handle, the handle and the connecting rod are arranged in a "T" shape, a plurality of groups of guard rings are uniformly fixedly arranged on the circumferential outer side of the handle, and the guard rings are annular structures made of rubber; the connecting rod is inserted into the inside of the stress column and is fixed by bolts.

[0009] Further, the stress foot pedal mechanism comprises an adjusting threaded cylinder, a positioning nut A, a positioning nut B, a fixing ring, a guide seat, a limiting seat and a pedal, the adjusting threaded cylinder is arranged between the outer cylinder and the switching sampling cylinder, the outside of the adjusting threaded cylinder is sleeved with the fixing ring, and the inner diameter of the fixing ring is greater than the diameter of the adjusting threaded cylinder.

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

[0011] Further, the circumferential outer wall of the fixing ring is fixedly provided with the pedal, the pedal is arranged in a rectangular shape, and the surface of the pedal is uniformly fixedly provided with a plurality of groups of anti-skid strips arranged at equal distances.

[0012] Further, the circumferential inner wall of the fixing ring is respectively fixedly provided with two groups of oppositely distributed guide seats and limiting seats, the guide seats and the limiting seats are arranged in an arc shape, the guide seats cover the circumferential outer wall of the soft soil sampling head, and the limiting seats are slidingly arranged on the circumferential inner wall of the adjusting threaded cylinder.

[0013] Further, the bottom of the switching sampling cylinder is provided with switching openings on both sides, the bottom of the switching opening is provided with a locking opening, the locking opening is provided with a locking table, the size of the locking table and the locking opening is matched, the locking table is clamped in the locking opening and is locked by two groups of bolts, and the locking table and the locking opening are rectangular.

[0014] Further, the switching soil sampling mechanism comprises a fixing seat, a locking table, a hard soil sampling head and a soft soil sampling head, the upper side of the locking table is provided with a switching opening, the width of the switching opening is greater than the length of the locking table, the length of the soft soil sampling head and the hard soil sampling head is consistent, the cross-sectional diameter of the soft soil sampling head and the hard soil sampling head is consistent, the end of the soft soil sampling head is provided with a pointed end, and a sampling opening is formed in the circumferential outer wall of the soft soil sampling head.

[0015] Further, the fixing seat is in a cylindrical shape, the soft soil sampling head is fixedly arranged at one end of the fixing seat, the hard soil sampling head is fixedly arranged at the end, away from the soft soil sampling head, of the fixing seat, the locking table is fixedly arranged on the two side walls of the fixing seat, and the end seat is covered on the bottom of the locking table and is screwed in the bottom of the locking opening.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1. The sampling device mainly comprises a tubular stress column, an outer cylinder and a switching soil sampling mechanism, and is light and small in shape, so that the operator can hold or carry the device more easily during sampling, thereby reducing the labor intensity, especially when long-time operation or sampling in complex terrain environment is needed, the operator can be conveniently moved and operated, and the sampling efficiency is improved; the small design is beneficial to use in different space environments, and the sampling work can be conveniently carried out in an open field or a relatively narrow indoor space, or even some difficult-to-reach corners, and is not limited by space;

[0018] 2. The height of the pedal on the stress pedal mechanism can be adjusted, the height, leg length and force habit of different operators are different; the pedal height can be adjusted to the most suitable height for each operator according to their own physical conditions, so that they can force more comfortably and naturally when stepping, thereby improving the convenience and efficiency of operation, reducing physical fatigue or inconvenience caused by improper pedal height; in different sampling environments, the texture, hardness and sampling depth of soil may be different;

[0019] 3.The present application can significantly improve the sampling speed by switching the soil sampling mechanism with a hard soil sampling head and a soft soil sampling head respectively, and using a special sampling head for different types of soil; 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 can avoid deformation, damage or incomplete samples when sampling in hard soil. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a front view of the structure of the present application;

[0021] Figure 2 is a bottom view of the structure of the present application;

[0022] Figure 3 is a top view of the structure of the present application;

[0023] Figure 4 is a rear view of the partial structure of the present application;

[0024] Figure 5 is a schematic view of the outer cylinder and its internal structure of the structure of the present application;

[0025] Figure 6 is a schematic view of the force receiving pedal mechanism of the structure of the present application;

[0026] Figure 7 is a bottom view of the structure of the present application; Figure 5

[0027] Figure 8 is a schematic view of the switching soil sampling mechanism of the structure of the present application.

[0028] [REFERENCE NUMERALS]

[0029] 1, handle; 2, retainer; 3, connecting rod; 4, force receiving column; 41, force receiving ring; 5, connecting column; 6, butt joint seat; 7, outer cylinder; 8, force receiving pedal mechanism; 80, adjusting threaded cylinder; 81, positioning nut A; 82, positioning nut B; 83, fixing ring; 831, guide seat; 832, limiting 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 table; 123, hard soil sampling head; 124, soft soil sampling head; 1241, pointed end; 1242, sampling port. DETAILED DESCRIPTION

[0030] Specific implementation one: please refer to Figures 1-8 ​The application provides a technical scheme: a drilling sampling device for mine geological surveying and mapping, which comprises a switching sampling cylinder 9, an outer cylinder 7 is installed at the top of the switching sampling cylinder 9, an adapter seat 6 is installed at the end of the outer cylinder 7 away from the switching sampling cylinder 9, a connecting column 5 is fixedly arranged at the end of the adapter seat 6, a switching soil sampling mechanism 12 is inserted into the switching sampling cylinder 9, a soft soil sampling head 124 is fixedly arranged at one end of the switching soil sampling mechanism 12, a hard soil sampling head 123 is fixedly arranged at the other end of the switching soil sampling mechanism 12, and a stress foot pedal mechanism 8 is sleeved at the middle part of the switching sampling cylinder 9.

[0031] Working principle: when drilling sampling is carried out, the sampling device mainly comprises a tubular stress column 4, an outer cylinder 7 and a switching soil sampling mechanism 12, and has a light and small shape, so that the operator can hold or carry the device more easily during sampling, thereby reducing the labor intensity, facilitating the movement and operation of the operator during long-time operation or sampling in a complex terrain environment, and improving the sampling efficiency; the small design is beneficial to use in different space environments, and the sampling work can be conveniently carried out in an open field or a relatively narrow indoor space, or even in some difficult-to-reach corners, without being limited by space; the disturbance to the surrounding soil is small during the sampling process; in particular, the tubular switching soil sampling mechanism 12 can be accurately inserted into the soil, thereby reducing the damage to the soil structure and vegetation around the sampling point, being beneficial to protect the ecological environment of the sampling site, and helping to obtain more representative soil samples; due to the lightness of the device, the pressure on the ground is relatively small during placement and operation, and it is not easy to leave obvious pressure marks or damage the ground in the sampling area, and the device is particularly suitable for some sampling occasions with high environmental requirements, such as nature reserves and archaeological sites; the tubular stress column 4 can provide stable support and guiding effect, so as to ensure that the device is vertically inserted into the soil during sampling, avoid sampling deviation caused by inclination or shaking, and improve the sampling accuracy; the light and small design uses relatively less material, which not only reduces the manufacturing cost of the device, but also saves space and cost during transportation and storage; the structure is relatively simple, and the number of parts is relatively small, so that the maintenance and maintenance of the device are easier; the operator can more conveniently check, clean, maintain and replace each part, thereby reducing the maintenance cost and time, improving the service life and reliability of the device; the design of the switching soil sampling mechanism enables the sampling mode to be flexibly switched or the sampling part 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 improves the sampling quality;

[0032] The force-bearing foot pedal mechanism 8 facilitates pressing the sampling head on the soil sampling mechanism 12 into the soil to be sampled. The foot pedal 84 on the force-bearing foot pedal mechanism 8 is height-adjustable. Different operators have different heights, leg lengths, and force application habits. Adjustable foot pedal 84 height allows each operator to adjust it to their most suitable height based on their physical condition, enabling them to exert force more comfortably and naturally when stepping, thereby improving operational convenience and efficiency and reducing physical fatigue or operational inconvenience caused by unsuitable foot pedal height. In different sampling environments, the texture, hardness, and sampling depth requirements of the soil may vary. For example, sampling in soft soil may not require much stepping force, and the foot pedal 84 height can be appropriately lowered for easy stepping. However, sampling in hard soil requires greater force to press the sampling head into the soil. The pedal 84 can be raised to allow operators to use greater leg strength to press the sampling head deeper into the soil, meeting the needs of different sampling scenarios. By adjusting the height of the pedal 84, operators can find the most suitable angle and force, thereby more stably and accurately controlling the depth and position of the sampling head in the soil. This helps ensure consistent sampling depth and accurate sampling position, improving sampling accuracy and sample representativeness, and avoiding deviations in sampling depth or position due to unsuitable pedal 84 height, which could affect subsequent soil analysis and research results. The specific adjustment method for the pedal 84 is as follows: After determining the position of the pedal 84, rotate the positioning nuts A81 and B82 to screw them onto the upper and lower surfaces of the pedal 84 respectively, ensuring the stability of the pedal 84 during operation and preventing it from shaking.

[0033] The hard soil sampling head 123 and the soft soil sampling head 124 are respectively arranged on the switching soil sampling mechanism 12. The hard soil sampling head 123 can be used for sampling relatively rigid and compact soil, and the soft soil sampling head 124 can be used for sampling relatively soft soil. Special sampling heads are used for different types of soil, which can significantly improve the sampling speed. For example, the hard soil sampling head 123 is designed to be firm and has a spiral shape, which can be manually pressed and rotated for sampling. The penetration force is strong, and when collecting compact soil, the hard soil sampling head 123 will not be difficult to insert due to the hardness of the soil, and the sampling can be quickly completed. The soft soil sampling head 124 is provided with a sharp end 1241 at the end, and a sampling port 1242 is formed on the surface. The sampling port 1242 is arranged to facilitate the removal of the soil inside the tubular soft soil sampling head 124, which can be gently inserted into the soft soil to be collected, preventing the soil sample from deforming due to excessive extrusion or disturbance during the sampling process, and also improving the sampling efficiency. 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 the deformation, damage or incomplete sample of the sampling head when sampling in hard soil. The soft soil sampling head 124 can prevent the problem of scattering, loss or structure damage of soft soil during sampling, so that the collected soft soil sample maintains the original structure and composition, which is conducive to subsequent accurate analysis and research. The sampling device can be applied to various types of soil environments. Whether it is compact soil in arid areas, soft soil in humid areas, or areas with mixed soil of different types, the sampling head can be switched to effectively perform sampling work, expand the application range of the sampling equipment, improve the practicality and economy of the equipment, and reduce the cost of replacing different sampling equipment due to different soil types.

[0034] The switching mode 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 table 122 is pulled out from the inside of the locking port 101, so that the locking table 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 table 122, the locking table 122 can rotate in the inside of 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 switching soft soil sampling head 124 is used for work. The locking table 122 can be locked in the inside of the locking port 101 by a bolt, so as to ensure the stability of the hard soil sampling head 123 and the soft soil sampling head 124 when sampling. At the same time, the locking port 101 can also be designed at the upper position of the switching port 10, so that the hard soil sampling head 123 and the soft soil sampling head 124 are pressed when the locking table 122 is pressed in the inside of the locking port 101. At the same time, the locking table 122 and the locking port 101 cannot be fixed by adding a bolt.

[0035] Specific embodiment two: the embodiment is a further limitation of the specific embodiment one. The end of the connecting column 5 is fixedly provided with a stress column 4. The stress column 4 is hollow. A plurality of groups of stress rings 41 are uniformly fixedly arranged on the circumferential outer wall of the stress column 4. The stress rings 41 are made of rubber. The distance between the adjacent two groups of stress rings 41 is consistent.

[0036] Specific embodiment three: the embodiment is a further limitation of the specific embodiment two. The inside of the stress column 4 movably penetrates the connecting rod 3. The top of the connecting rod 3 is fixedly provided with a handle 1. The handle 1 and the connecting rod 3 are arranged in a “T” shape. A plurality of groups of guard rings 2 are uniformly fixedly arranged on the circumferential outer side of the handle 1. The guard rings 2 are annular structures made of rubber. The connecting rod 3 is inserted into the inside of the stress column 4 and is fixed by a bolt.

[0037] Specific embodiment four: the embodiment is a further limitation of the specific embodiment one. The stress pedal mechanism 8 includes an adjusting threaded cylinder 80, a positioning nut A 81, a positioning nut B 82, a fixed ring 83, a guide seat 831, a limiting seat 832, and a pedal 84. The adjusting threaded cylinder 80 is arranged between the outer cylinder 7 and the switching sampling cylinder 9. The outer side of the adjusting threaded cylinder 80 is sleeved with the fixed ring 83. The inner diameter of the fixed ring 83 is greater than the diameter of the adjusting threaded cylinder 80.

[0038] Specific implementation five: this implementation is a further limitation of the fourth specific implementation, the upper side of the fixed ring 83 is provided with a positioning nut A81, the lower side of the fixed ring 83 is provided with a positioning nut B82, the positioning nut B82 and the positioning nut A81 are screwed on the outside of the adjusting threaded cylinder 80, the fixed ring 83 on the adjusting threaded cylinder 80 is positioned by the positioning nut B82 and the positioning nut A81.

[0039] Specific implementation six: this implementation is a further limitation of the fifth specific implementation, the circumferential outer wall of the fixed ring 83 is fixedly provided with a pedal 84, the pedal 84 is rectangularly arranged, and the surface of the pedal 84 is uniformly provided with a plurality of groups of anti-skid strips arranged at equal intervals.

[0040] Specific implementation seven: this implementation is a further limitation of the sixth specific implementation, the circumferential inner wall of the fixed ring 83 is fixedly provided with two groups of oppositely distributed guide seats 831 and limiting seats 832 respectively, the guide seats 831 and the limiting seats 832 are arc-shaped, the guide seats 831 cover the circumferential outer wall of the soft soil sampling head 124, and the limiting seats 832 are slidingly arranged on the circumferential inner wall of the adjusting threaded cylinder 80.

[0041] Specific implementation eight: this implementation is a further limitation of the first specific implementation, the bottom of the switching sampling cylinder 9 is provided with a switching port 10 on both sides, the bottom of the switching port 10 is provided with a locking port 101, the locking port 101 is provided with a locking table 122, the size of the locking table 122 and the locking port 101 is matched, the locking table 122 is clamped in the locking port 101 and is locked by two groups of bolts, and the locking table 122 and the locking port 101 are rectangularly arranged.

[0042] Specific implementation nine: this implementation is a further limitation of the first specific implementation, the switching soil sampling mechanism 12 comprises a fixed seat 121, a locking table 122, a hard soil sampling head 123 and a soft soil sampling head 124, the locking table 122 is provided with a switching port 10 on the upper side, and the width of the switching port 10 is greater than the length of the locking table 122; the length of the soft soil sampling head 124 and the hard soil sampling head 123 is consistent, and the cross-sectional diameter of the soft soil sampling head 124 and the hard soil sampling head 123 is consistent; the end of the soft soil sampling head 124 is provided with a sharp end 1241, and the circumferential outer wall of the soft soil sampling head 124 is provided with a sampling port 1242, and the sampling port 1242 is arranged in a "U" shape.

[0043] Specific implementation ten: this implementation is further limited to specific implementation nine, the fixed seat 121 is cylindrically arranged, one end of the fixed seat 121 is fixedly provided with a soft soil sampling head 124, the end of the fixed seat 121 away from the soft soil sampling head 124 is fixedly provided with a hard soil sampling head 123, the two side walls of the fixed seat 121 are both fixedly provided with a locking table 122, the bottom of the locking table 122 is covered with an end seat 11, and the end seat 11 is screwed at the bottom of the locking port 101.

Claims

1. A borehole sampling device for mine geological mapping, comprising a switching sampling cartridge (9), characterized in that: The top of the switching sampling cylinder (9) is provided with an outer cylinder (7), the end of the outer cylinder (7) away from the switching sampling cylinder (9) is provided with a docking seat (6), the end of the docking seat (6) is fixedly provided with a connecting column (5), the inside of the switching sampling cylinder (9) is inserted with a switching soil sampling mechanism (12), one end of the switching soil sampling mechanism (12) is fixedly provided with a soft soil sampling head (124), the other end of the switching soil sampling mechanism (12) is fixedly provided with a hard soil sampling head (123), the middle of the switching sampling cylinder (9) is sleeved with a stress foot pedal mechanism (8); The stress foot pedal mechanism (8) comprises an adjusting threaded cylinder (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 cylinder (80) is arranged between the outer cylinder (7) and the switching sampling cylinder (9), the outer side of the adjusting threaded cylinder (80) is sleeved with the fixing ring (83), the inner diameter of the fixing ring (83) is larger than the diameter of the adjusting threaded cylinder (80); the upper side of the fixing ring (83) is provided with the positioning nut A (81), the lower side of the fixing ring (83) is provided with the positioning nut B (82), the positioning nut B (82) and the positioning nut A (81) are respectively screwed on the outer side of the adjusting threaded cylinder (80), and the fixing ring (83) on the adjusting threaded cylinder (80) is positioned by the positioning nut B (82) and the positioning nut A (81); the circumferential outer wall of the fixing ring (83) is fixedly provided with the pedal (84), the pedal (84) is arranged in a rectangular shape, and a plurality of groups of anti-skid strips arranged at equal distances are uniformly fixed on the surface of the pedal (84); the circumferential inner wall of the fixing ring (83) is fixedly provided with two groups of oppositely distributed guide seats (831) and limiting seats (832), the guide seats (831) and the limiting 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 limiting seats (832) are slidingly arranged on the circumferential inner wall of the adjusting threaded cylinder (80); the switching soil sampling mechanism (12) comprises a fixing seat (121), a locking table (122), a hard soil sampling head (123) and a soft soil sampling head (124), the upper side of the locking table (122) is provided with a switching port (10), and the width of the switching port (10) is greater than the length of the locking table (122); the lengths of the soft soil sampling head (124) and the hard soil sampling head (123) are consistent, and the cross-sectional diameters of the soft soil sampling head (124) and the hard soil sampling head (123) are consistent; the end of the soft soil sampling head (124) is provided with a pointed end (1241), and a sampling port (1242) is formed in the circumferential outer wall of the soft soil sampling head (124), and the sampling port (1242) is arranged in a "U" shape.

2. The borehole sampling device for mine geological mapping of claim 1, wherein: The end of the connecting column (5) is fixedly provided with a stress column (4), the stress column (4) is hollow, and a plurality of groups of stress rings (41) are uniformly fixed on the circumferential outer wall of the stress column (4), the stress rings (41) are made of rubber, and the distances between adjacent two groups of stress rings (41) are consistent.

3. The borehole sampling device for mine geological mapping of claim 2, wherein: The inside of the force column (4) is movably inserted with a connecting rod (3), the top of the connecting rod (3) is fixedly provided with a handle (1), the handle (1) and the connecting rod (3) are provided in a T shape, a plurality of guard rings (2) are uniformly fixedly arranged on the circumferential outer side of the handle (1), the guard ring (2) is an annular structure made of rubber material; the connecting rod (3) is inserted into the inside of the force column (4) and is fixed by bolts.

4. The borehole sampling device for mine geological mapping of claim 1, wherein: The bottom of the switching sampling barrel (9) is provided with switching ports (10) on both sides, the bottom of the switching port (10) is provided with a locking port (101), the locking port (101) is provided with a locking table (122), the locking table (122) and the locking port (101) are matched in size, the locking table (122) is clamped in the locking port (101) and is locked by two groups of bolts, and the locking table (122) and the locking port (101) are both provided in a rectangular shape.

5. The borehole sampling device for mine geological mapping of claim 1, wherein: The fixed seat (121) is provided in a cylindrical shape, one end of the fixed seat (121) is fixedly provided with a soft soil sampling head (124), the end of the fixed seat (121) away from the soft soil sampling head (124) is fixedly provided with a hard soil sampling head (123), the two side walls of the fixed seat (121) are both fixedly provided with a locking table (122), the bottom of the locking table (122) is covered with an end seat (11), and the end seat (11) is screwed on the bottom of the locking port (101).

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