Mine geological detector

Abstract

This utility model relates to the field of mine geological exploration technology, and discloses a mine geological exploration instrument including a support frame and a sampling structure. The support frame has a base and a frame body, with the frame body connected to the upper surface of the base. In the sampling mechanism, a drive motor is connected to the frame body, its output shaft is connected to a threaded rod, a connector is threaded to the threaded rod and to the sampling component, the bottom end of the sliding column is connected to the base, the sliding hole of the connector is fitted into the sliding column, and the top end is connected to a fixing plate. The sampling component includes a fixed cylinder, a sampling cylinder, a lifting rod, a telescopic rod, and a contact plate. The fixed cylinder is connected to the connector, the lifting rod is connected to the fixed cylinder, and its output shaft is connected to the sampling cylinder. The sampling cylinder can extend and retract within the fixed cylinder under the drive of the lifting rod. The fixed cylinder has a through groove, the telescopic rod is installed outside the through groove, and its output shaft is connected to the contact plate. The contact plate can pass through the through groove and insert into the fixed cylinder to contact the soil inside the sampling cylinder under the drive of the telescopic rod. The drive motor drives the threaded rod to rotate, causing the connector to move, and the lifting rod and telescopic rod control the movement of the sampling cylinder and the contact plate to complete soil sampling.

Description

Technical Field

[0001] This utility model relates to the field of mine geological exploration technology, and in particular to a mine geological exploration instrument. Background Technology

[0002] Geological exploration involves investigating and exploring geology through various means and methods to determine suitable bearing strata. Geological exploration requires soil sampling, which is an indispensable part of geological exploration. Soil sampling is mainly used to obtain information such as the physical properties, chemical composition, and mechanical properties of the soil, providing necessary basis for engineering design and construction.

[0003] According to a utility model patent with Chinese patent application number 202420111798.6, a geological drilling sampling device for water conservancy engineering survey and design is described. This device can electrically extend the sampling tube into the soil for sampling, which saves the user's physical strength. However, this device does not have the function of quickly removing the sampled soil. The soil removed from the sampling tube is cylindrical and adheres to the sampling tube, which is inconvenient for the user to clean and remove the cylindrical sampled soil, affecting the next use of the sampling tube. Therefore, it is necessary to propose a mine geological detector to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a mine geological detector that has the advantages of quickly removing soil samples from the sampling tube, thus solving the problem that the prior art lacks the function of quickly removing soil samples.

[0005] To achieve the above objectives, this utility model provides a mine geological detector including a support frame and a sampling structure;

[0006] The support frame includes a base and a frame body, with the frame body fixedly connected to the upper surface of the base;

[0007] The sampling mechanism includes a drive motor, a threaded rod, a connector, a sampling component, and a slide column. The drive motor is fixedly connected to the frame, the output shaft of the drive motor is fixedly connected to the threaded rod, the connector is threadedly connected to the threaded rod, and the connector is fixedly connected to the sampling component.

[0008] The bottom end of the sliding column is fixedly connected to the base, the connector is provided with a sliding hole, the sliding hole passes through the sliding column to realize the sliding connection of the connector to the sliding column, and the top end of the sliding column is fixedly connected to the fixing plate.

[0009] The sampling components include a fixed cylinder, a sampling tube, a lifting rod, a telescopic rod, and a contact plate;

[0010] The fixed cylinder is fixedly connected to the connector;

[0011] The lifting rod is connected to the fixed cylinder, and the output shaft of the lifting rod is fixedly connected to the sampling cylinder. The sampling cylinder is located inside the fixed cylinder, and the sampling cylinder has an opening on the side facing away from the connecting rod. The sampling cylinder can retract or extend relative to the fixed cylinder under the drive of the lifting rod.

[0012] The fixed cylinder is provided with an axially extending through groove, the telescopic rod is installed outside the through groove, and the output shaft of the telescopic rod is connected to the contact plate;

[0013] Driven by the telescopic rod, the contact plate can pass through the through slot and insert into the fixed cylinder, and contact the soil located in the sampling cylinder.

[0014] Preferably, the frame also includes a fixing plate, which is fixedly connected to the top of the sliding column, and the drive motor is fixedly connected to the fixing plate. The output end of the drive motor passes through the fixing plate and is fixedly connected to the threaded rod.

[0015] Preferably, the base includes two spaced-apart base plates, and the number of sliding columns is the same as the number of base plates, with the bottom end of one sliding column fixedly connected to the corresponding base plate;

[0016] The connector has two spaced sliding holes, and corresponding sliding posts pass through the two sliding holes to allow the connector to slide along the direction of the sliding posts.

[0017] Preferably, the base also includes a balance plate, with both sides of the balance plate fixedly connected to two base plates, and the bottom end of the threaded rod abutting against the balance plate.

[0018] Preferably, the frame also includes a counterweight, one end of which is fixedly connected to a fixed plate, and the other end of which is fixedly connected to a base plate.

[0019] Preferably, the number of balance bars is the same as the number of base plates, and the two ends of each balance bar are fixedly connected to the corresponding fixed plate and the corresponding base plate, respectively.

[0020] Preferably, the support frame further includes a connecting plate, with both ends of the connecting plate fixedly connected to the two base plates respectively.

[0021] Preferably, there are multiple through slots, which are circumferentially spaced on the fixed cylinder.

[0022] Preferably, there are multiple telescopic rods, which are circumferentially spaced on the side of the fixed cylinder near the sampling cylinder. The number of contact plates corresponds one-to-one with the number of telescopic rods, and the output shaft of each telescopic rod is fixedly connected to the corresponding contact plate.

[0023] Preferably, the telescopic rod is a miniature hydraulic telescopic rod.

[0024] Compared with the prior art, the beneficial effects of this utility model embodiment of a mine geological detector are as follows:

[0025] (1) In this embodiment, the drive motor drives the threaded rod to rotate, so that the connecting part and the sampling structure connected to it can move up and down steadily along the sliding column. Combined with the sliding fit of the sliding hole and the sliding column, the stability and control accuracy of the sampling part in the vertical direction are guaranteed, thereby improving the consistency and repeatability of geological sample collection.

[0026] (2) The sampling tube can be extended and retracted relative to the fixed tube under the drive of the lifting rod, and different depths can be selected for sampling according to the needs of the detection. It is suitable for geological exploration of multi-layer soil or mineral body structure, which improves the adaptability and practicality of the equipment.

[0027] (3) By setting a through groove on the fixed tube and cooperating with the external telescopic rod to drive the contact plate, the soil sample is compressed or pushed out inside the sampling tube, which effectively prevents the sample from becoming loose or damaged during collection or transfer, and ensures the integrity and representativeness of the sample.

[0028] (4) This embodiment realizes the automation and precision of sampling operations, reduces the errors and risks caused by manual insertion, and helps to improve the overall efficiency of mine geological exploration and the safety of operators. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0030] Figure 2 This is a first-view schematic diagram of the sampling component according to an embodiment of this utility model;

[0031] Figure 3 This is a second-view schematic diagram of the sampling component according to an embodiment of this utility model;

[0032] Figure 4 This is a third-view schematic diagram of the sampling component in an embodiment of this utility model.

[0033] In the diagram, 1 represents the support frame;

[0034] 11. Base; 111. Base plate; 112. Balance plate;

[0035] 12. Frame; 121. Fixing plate; 122. Sliding column; 123. Balance diagonal bar;

[0036] 2. Sampling structure;

[0037] 21. Drive motor; 22. Threaded rod; 23. Connecting parts;

[0038] 24. Sampling component; 241. Fixing cylinder; 242. Sampling cylinder; 243. Lifting rod; 244. Contact plate; 245. Through groove; 246. Telescopic rod. Detailed Implementation

[0039] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0040] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "vertical", "horizontal", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] like Figures 1-3 As shown, a preferred embodiment of the present invention provides a mine geological detector that includes a support frame 1 and a sampling structure 2.

[0043] The support frame 1 includes a base 11 and a frame 12, with the frame 12 fixedly connected to the upper surface of the base 11;

[0044] The sampling mechanism includes a drive motor 21, a threaded rod 22, a connector 23, a sampling component 24, and a slide column 122. The drive motor 21 is fixedly connected to the frame 12, the output shaft of the drive motor 21 is fixedly connected to the threaded rod 22, the connector 23 is threadedly connected to the threaded rod 22, and the connector 23 is fixedly connected to the sampling component 24.

[0045] The bottom end of the sliding column 122 is fixedly connected to the base 11. The connector 23 is provided with a sliding hole, which passes through the sliding column 122 to realize the sliding connection of the connector 23 to the sliding column 122. The top end of the sliding column 122 is fixedly connected to the fixing plate 121.

[0046] The sampling component 24 includes a fixed cylinder 241, a sampling cylinder 242, a lifting rod 243, a telescopic rod 246, and a contact plate 244;

[0047] The fixed cylinder 241 is fixedly connected to the connector 23;

[0048] The lifting rod 243 is connected to the fixed cylinder 241. The output shaft of the lifting rod 243 is fixedly connected to the sampling cylinder 242. The sampling cylinder 242 is located inside the fixed cylinder 241. The sampling cylinder 242 has an opening facing the side away from the connecting rod. The sampling cylinder 242 can retract or extend relative to the fixed cylinder 241 under the drive of the lifting rod 243.

[0049] The fixed cylinder 241 is provided with a through groove 245 extending along the axial direction, the telescopic rod 246 is installed outside the through groove 245, and the output shaft of the telescopic rod 246 is connected to the contact plate 244.

[0050] Driven by the telescopic rod 246, the contact plate 244 can pass through the through slot 245 and be inserted into the fixed cylinder 241, and contact the soil located in the sampling cylinder 242.

[0051] Based on the above scheme, the working process of this utility model is as follows: First, the geological detector is placed on the mine surface where sampling is required. The stability of the support frame 1 is adjusted to ensure that the base 11 is in stable contact with the ground, and the opening of the sampling component 24 faces the target soil area. The drive motor 21 on the frame 12 is started, and its output shaft drives the threaded rod 22 to rotate. Since the connecting part 23 is threadedly connected to the threaded rod 22, the connecting part 23 moves downward along the threaded axis under the action of screw transmission. At the same time, the sliding hole on the connecting part 23 slides and engages with the sliding column 122 to ensure that it descends smoothly only in the vertical direction, preventing lateral swaying or deviation. When the connecting part 23 and its fixed cylinder 241 descend to the preset sampling depth, the electric lifting rod 243 is controlled to work, driving its output shaft to push the sampling cylinder 242 to extend axially relative to the fixed cylinder 241, so that one end of the sampling cylinder 242 is inserted into the target soil layer and a soil sample is collected through the bottom opening. After soil sample collection, to ensure sample compaction within the tube or facilitate subsequent transfer, the telescopic rod 246 installed on one side of the fixed tube 241 can be activated. Its output shaft drives the contact plate 244 through a slot 245 axially located on the outer shell of the fixed tube 241, inserting the contact plate 244 into the fixed tube 241 to compact or eject the sample in the sampling tube 242, ensuring sample integrity. After sampling, the lifting rod 243 is reversed, causing the sampling tube 242 to retract back into the fixed tube 241. Subsequently, the drive motor 21 is reversed to rotate the threaded rod 22, causing the connecting piece 23 to move upwards, allowing the sampling piece 24 to rise as a whole and detach from the sampling area. After the rising action is complete, the operator can remove the sample from the fixed tube 241 for labeling, component analysis, or subsequent experiments, providing a basis for mine geological structure assessment and engineering design.

[0052] In this embodiment, the drive unit 21 is a motor.

[0053] Based on the above scheme, this embodiment uses a drive motor 21 to rotate the threaded rod 22, causing the connecting piece 23 and its connected sampling structure 2 to rise and fall stably along the sliding column 122. Combined with the sliding fit between the sliding hole and the sliding column 122, the stability and control accuracy of the sampling piece 24's vertical movement are ensured, thereby improving the consistency and repeatability of geological sample collection. The sampling cylinder 242, driven by the lifting rod 243, is telescopically adjustable relative to the fixed cylinder 241, allowing for sampling at different depths according to exploration needs. This is suitable for geological exploration of multi-layered soil or ore body structures, improving the equipment's adaptability and practicality. By setting a through groove 245 on the fixed cylinder 241 and cooperating with an external telescopic rod 246 to drive the contact plate 244, the soil sample is compressed or pushed out within the sampling cylinder 242, effectively preventing the sample from loosening or being damaged during collection or transfer, ensuring the integrity and representativeness of the sample. This embodiment achieves automated and precise sampling operations, reducing errors and risks associated with manual insertion and removal, and improving the overall efficiency of mine geological exploration and the safety of operators.

[0054] Furthermore, the frame 12 also includes a fixing plate 121, which is fixedly connected to the top of the sliding column 122. The drive motor 21 is fixedly connected to the fixing plate 121, and the output end of the drive motor 21 passes through the fixing plate 121 and is fixedly connected to the threaded rod 22.

[0055] By setting a fixing plate 121 in the frame 12 and fixing the fixing plate 121 to the top of the sliding column 122, the drive motor 21 can be stably installed at a high position through the fixing plate 121. This further ensures that the vibration generated by the drive motor 21 during operation will not affect the axial stability of the threaded transmission system, which helps to improve the linear accuracy and reliability of the sampling structure 2 during vertical movement. The output end of the drive motor 21 passes through the fixing plate 121 and is directly connected to the threaded rod 22, eliminating the need for additional coupling devices or transition parts, reducing assembly complexity, and reducing transmission losses, thereby improving the power utilization efficiency and response accuracy of the entire drive transmission system.

[0056] Furthermore, the base 11 includes two spaced-apart base plates 111, and the number of sliding columns 122 is the same as that of the base plates 111, with the bottom end of one sliding column 122 fixedly connected to the corresponding base plate 111.

[0057] The connector 23 is provided with two spaced sliding holes, and the two sliding holes are respectively inserted through the corresponding sliding post 122 so that the connector 23 can slide along the direction of the sliding post 122.

[0058] By designing the base 11 to include two spaced-apart base plates 111, and fixing the bottom of each sliding column 122 to the corresponding base plate 111, not only is the support spacing of the sliding columns 122 increased, but the anti-eccentric load and anti-deformation capacity of the entire slide rail structure in the sampling motion direction is also enhanced, which helps to ensure the balance and stability of the sampling mechanism when it moves up and down.

[0059] Furthermore, the connector 23 is provided with two sliding holes, which are respectively inserted into the corresponding sliding column 122 to form a double-guide sliding structure. This effectively avoids the possible offset, skewness or jamming of the single sliding column 122 structure during operation, so that the connector 23 and the sampling component 24 driven by it can move smoothly and linearly along the axis of the sliding column 122, thereby improving the vertical accuracy of sampling positioning.

[0060] Furthermore, the base 11 also includes a balance plate 112, with the two sides of the balance plate 112 fixedly connected to the two base plates 111 respectively, and the bottom end of the threaded rod 22 abutting against the balance plate 112.

[0061] By setting a balance plate 112 between the two base plates 111 and fixing both ends of the balance plate 112 to the two base plates 111 respectively, a stable closed frame structure is constructed, which can effectively enhance the overall rigidity and seismic resistance of the base 11, and maintain a firm structure and stable operation in vibration environments such as mines.

[0062] Furthermore, the bottom end of the threaded rod 22 forms an abutment relationship with the balance plate 112, which can provide stable support and lower end limiting function during the driving process, preventing the threaded rod 22 from sinking, deforming or misaligning due to gravity or impact load, thereby ensuring its transmission accuracy and improving the positioning reliability and service life of the sampling mechanism.

[0063] Furthermore, the frame 12 also includes a balance bar 123, one end of which is fixedly connected to the fixed plate 121, and the other end of which is fixedly connected to the base plate 111.

[0064] By setting a balancing diagonal brace 123 between the fixed plate 121 and the base plate 111, a triangular support structure is formed, which not only improves the overall structural stability and bending stiffness of the frame 12, but also effectively resists the lateral swaying or vibration generated during the operation of the drive motor 21. The diagonal brace connection forms a triangular mechanical support unit, which can evenly transfer the load borne by the fixed plate 121 to the base plate 111, effectively avoiding structural loosening, tilting or overturning caused by long-term load concentration or equipment shaking. The setting of the balancing diagonal brace 123 makes the entire support frame 1 have a good force transmission path and force symmetry in both the vertical and horizontal directions, which is especially suitable for geological exploration operations in confined spaces and vibration-prone environments such as mines, further improving the safety and reliability of the equipment.

[0065] Furthermore, the number of balance bars 123 is the same as the number of base plates 111, and the two ends of each balance bar 123 are fixedly connected to the corresponding fixed plate 121 and the corresponding base plate 111, respectively.

[0066] By setting multiple balancing diagonal braces 123 corresponding to the number of base plates 111, and connecting each diagonal brace to the corresponding fixed plate 121 and base plate 111, a multi-point symmetrical support structure is formed, further enhancing the overall force balance and torsional stiffness of the support frame 1. This also effectively suppresses structural deformation or tilting caused by equipment eccentric loading, displacement, or impact during detection operations. This multi-diagonal brace arrangement can achieve even load distribution and multi-directional stable support during operation, improving the equipment's stability and anti-interference capabilities in complex geological environments. The multiple triangular structures formed between the balancing diagonal braces 123 possess excellent spatial stability, ensuring the mine geological detector maintains structural stability and working accuracy during lowering, sampling, or lifting operations. This significantly reduces the failure rate and the need for human intervention, improving the equipment's practicality and engineering reliability.

[0067] Furthermore, the support frame 1 also includes a connecting plate, the two ends of which are fixedly connected to the two base plates 111 respectively.

[0068] The connection plate, with its two ends fixedly connected to the two base plates 111, helps to enhance the overall structural stability and deformation resistance of the support frame 1. As a lateral connecting component, the connection plate prevents relative displacement or torsional deformation between the two base plates 111 when the base 11 is subjected to force or vibration, thereby maintaining the stability of the entire machine and ensuring sampling accuracy. The addition of the connection plate creates a closed frame structure at the bottom of the support frame 1, effectively improving the compressive bearing capacity of the bottom and preventing equipment tilting or shifting due to uneven ground or underground vibration, thus improving the adaptability and reliability of the geological detector in complex mining environments.

[0069] Furthermore, there are multiple through slots 245, which are circumferentially spaced on the fixed cylinder 241.

[0070] Multiple through slots 245 are arranged at circumferential intervals along the fixed cylinder 241, which improves the multi-point contact and uniform action capability of the sampling structure 2. Driven by the telescopic rod 246, the multiple through slots 245 can respectively accommodate the corresponding contact plates 244 to penetrate into the fixed cylinder 241, contacting and compacting the soil sample in the sampling cylinder 242 simultaneously or sequentially from multiple directions. This effectively avoids off-center loading or sample displacement caused by single-point compression, ensuring that the sampled samples are more representative and complete.

[0071] Furthermore, there are multiple telescopic rods 246, which are circumferentially spaced on the side of the fixed cylinder 241 near the sampling cylinder 242. The number of contact plates 244 corresponds one-to-one with the number of telescopic rods 246, and the output shaft of each telescopic rod 246 is fixedly connected to the corresponding contact plate 244.

[0072] Multiple telescopic rods 246 are evenly distributed circumferentially, allowing the contact plate 244 to contact the soil inside the sampling cylinder 242 from multiple angles, forming a ring-shaped fixing structure. This effectively prevents soil from falling off due to gravity or vibration during sampling, significantly improving the integrity and representativeness of the sample. The multiple telescopic rods 246 also distribute pressure, preventing excessive force at a single point from causing localized deformation or damage to the sampling cylinder 242, thus extending the equipment's service life.

[0073] Furthermore, the telescopic rod 246 is a miniature hydraulic telescopic rod.

[0074] The miniature hydraulic telescopic rod 246 provides stable and precisely adjustable pressure, ensuring that the force applied when the contact plate 244 contacts the soil is just right. This effectively secures the soil to prevent it from falling off while avoiding damage to the original soil structure due to excessive pressure, making it particularly suitable for collecting high-precision geological samples. The hydraulic telescopic rod 246 features rapid extension and retraction, enabling quick soil fixation and release, significantly improving sampling efficiency. It is especially suitable for mine geological exploration operations requiring continuous multi-point sampling.

[0075] In summary, this embodiment of the utility model provides a mine geological detector. In this embodiment, the drive motor 21 rotates the threaded rod 22, causing the connecting piece 23 and its connected sampling structure 2 to rise and fall stably along the sliding column 122. Combined with the sliding fit between the sliding hole and the sliding column 122, the stability and control accuracy of the sampling piece 24's vertical movement are ensured, thereby improving the consistency and repeatability of geological sample collection. The sampling cylinder 242, driven by the lifting rod 243, is telescopically adjustable relative to the fixed cylinder 241, allowing for sampling at different depths according to detection needs. This is suitable for geological exploration of multi-layered soil or ore bodies, improving the adaptability and practicality of the equipment. By setting a through groove 245 on the fixed cylinder 241 and cooperating with the external telescopic rod 246 to drive the contact plate 244, the soil sample is compressed or pushed out within the sampling cylinder 242, effectively preventing the sample from loosening or being damaged during collection or transfer, ensuring the integrity and representativeness of the sample. This embodiment automates and refines the sampling process, reducing errors and risks associated with manual sampling, and improving the overall efficiency of mine geological exploration and the safety of workers. The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and substitutions without departing from the principles of this utility model, and these improvements and substitutions should also be considered within the scope of protection of this utility model.

Claims

1. A mine geological detection instrument, characterized in that, It includes a support frame (1) and a sampling structure (2); The support frame (1) includes a base (11), a frame (12), and a sliding column (122). The frame (12) is fixedly connected to the upper surface of the base (11). The bottom end of the sliding column (122) is fixedly connected to the base (11). The connector (23) is provided with a sliding hole. The sliding hole passes through the sliding column (122) to realize that the connector (23) is slidably connected to the sliding column (122). The top end of the sliding column (122) is fixedly connected to the fixing plate (121). The sampling mechanism includes a drive motor (21), a threaded rod (22), a connector (23), and a sampling component (24). The drive motor (21) is fixedly connected to the frame (12), the output shaft of the drive motor (21) is fixedly connected to the threaded rod (22), the connector (23) is threadedly connected to the threaded rod (22), and the connector (23) is fixedly connected to the sampling component (24). The sampling component (24) includes a fixed cylinder (241), a sampling cylinder (242), a lifting rod (243), a telescopic rod (246), and a contact plate (244); The fixed cylinder (241) is fixedly connected to the connector (23); The lifting rod (243) is connected to the fixed cylinder (241), and the output shaft of the lifting rod (243) is fixedly connected to the sampling cylinder (242). The sampling cylinder (242) is located inside the fixed cylinder (241). The sampling cylinder (242) has an opening facing away from the connecting rod. The sampling cylinder (242) can retract or extend relative to the fixed cylinder (241) under the drive of the lifting rod (243). The fixed cylinder (241) is provided with a through groove (245) extending along the axial direction, the telescopic rod (246) is installed outside the through groove (245), and the output shaft of the telescopic rod (246) is connected to the contact plate (244). Driven by the telescopic rod (246), the contact plate (244) can pass through the through groove (245) and be inserted into the fixed cylinder (241) and contact the soil located in the sampling cylinder (242).

2. The mine geophysical prospecting apparatus according to claim 1, wherein The frame (12) also includes a fixing plate (121), which is fixedly connected to the top of the sliding column (122). The drive motor (21) is fixedly connected to the fixing plate (121), and the output end of the drive motor (21) passes through the fixing plate (121) and is fixedly connected to the threaded rod (22).

3. The mine geophysical prospecting apparatus according to claim 2, wherein The base (11) includes two spaced-apart base plates (111), and the number of sliding columns (122) is the same as that of the base plates (111). The bottom end of one of the sliding columns (122) is fixedly connected to the corresponding base plate (111). The connector (23) is provided with two spaced sliding holes, and the two sliding holes are respectively inserted through the corresponding sliding post (122) so that the connector (23) can slide along the direction of the sliding post (122).

4. The mine geophysical prospecting apparatus according to claim 3, wherein The base (11) also includes a balance plate (112), with the two sides of the balance plate (112) fixedly connected to the two base plates (111), and the bottom end of the threaded rod (22) abutting against the balance plate (112).

5. The mine geophysical prospecting apparatus according to claim 4, wherein The frame (12) also includes a balance bar (123), one end of which is fixedly connected to the fixed plate (121), and the other end of which is fixedly connected to the base plate (111).

6. The mine geophysical prospecting apparatus according to claim 5, wherein The number of the balance diagonal bars (123) is the same as the number of the base plates (111), and the two ends of each balance diagonal bar (123) are fixedly connected to the corresponding fixed plate (121) and the corresponding base plate (111).

7. The mine geophysical prospecting apparatus according to claim 3, wherein The support frame (1) also includes a connecting plate, the two ends of which are fixedly connected to the two base plates (111).

8. The mine geophysical prospecting apparatus according to claim 1, wherein The number of through slots (245) is multiple, and the multiple through slots (245) are circumferentially spaced on the fixed cylinder (241).

9. The mine geophysical prospecting apparatus according to claim 8, wherein, The telescopic rods (246) are multiple in number, and the multiple telescopic rods are circumferentially spaced on the side of the fixed cylinder (241) near the sampling cylinder (242). The number of the contact plates (244) corresponds one-to-one with the number of the telescopic rods (246). The output shaft of each telescopic rod (246) is fixedly connected to the corresponding contact plate (244).

10. The mine geophysical prospecting apparatus according to claim 9, wherein, The telescopic rod (246) is a miniature hydraulic telescopic rod.

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