Cone-shaped probe and auxiliary fixing device of drilling peeping instrument for coal mine tunnel

Abstract

The utility model discloses a conical probe and an auxiliary fixing device of a drilling peeping instrument for a coal mine tunnel. The plane camera is mounted in the center of the small-diameter end face of the probe; the plane annular lamp is located on the outer side of the plane camera. The plurality of curved-surface cameras are circumferentially and uniformly mounted at the middle section of the side surface of the probe; the curved-surface annular lamp is mounted outside the bottom of the probe side surface; the probe column body comprises a probe upper column body, a radial telescopic positioning assembly and a probe lower column body; the front end of the probe upper cylinder is fixedly connected with the large-diameter end of the probe; the radial telescopic positioning assembly is composed of a plurality of radial mounting holes annularly and uniformly formed in the cylinder body of the probe upper cylinder and a plurality of telescopic supporting mechanisms annularly and uniformly distributed and correspondingly arranged in the radial mounting holes; the number of the radial telescopic positioning assemblies is two. And the front end of the probe lower column body is rotatably connected to the rear end of the probe upper column body through a middle pivot. The device can effectively guarantee the peeping stability of a large-size drill hole, and can obtain a high-quality drill hole image.

Description

Technical Field

[0001] This utility model belongs to the technical field of borehole detection equipment, specifically relating to a conical probe and auxiliary fixing device for a borehole inspection instrument used in coal mine roadways. Background Technology

[0002] Drilling and inspection technology in coal mine roadways is one of the important means of coal mine safety monitoring and working face inspection. It involves drilling holes in the roadways and using inspection instruments or imaging equipment to monitor the development of fractures in the surrounding rock in real time. This technology not only effectively ensures the safety of miners but also provides valuable reference data for mine management.

[0003] The current borehole inspection device still has some problems, as follows: (1) The structure of the probe is mostly cylindrical. The overall outer diameter of this cylindrical structure is fixed. When facing narrow or irregular tunnels, the insertion resistance is large, and it is easy to get stuck or damaged. In addition, the alignment accuracy of this cylindrical structure is low, and the image is prone to distortion or blurring, which will affect the image quality. (2) If the size of the borehole to be inspected is strictly set according to the construction requirements, the probe is not likely to shake significantly during the operation. However, in actual implementation, due to the interference of various factors, the actual borehole size is generally much larger than the required size of the inspection probe. Thus, the probe will inevitably swing back and forth in the borehole during the inspection process, which is not conducive to the stable inspection of the borehole to be inspected. At the same time, it makes the inspection operation process extremely difficult. (3) The current borehole inspection device requires high technical experience from the user. During the process of pushing the drill rod into the depth of the borehole, the random rotation of the drill rod may cause blurring of the inspection image. Therefore, it is necessary to rely on the operator with rich technical experience to carry out the pushing operation.

[0004] Therefore, it is urgent to innovate the structure of existing peephole probes to effectively address the shortcomings of cylindrical probes, thereby ensuring the stability of large-size borehole inspection and reducing the difficulty of use for peephole users. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a conical probe and auxiliary fixing device for a borehole inspection instrument used in coal mine roadways. The device has a simple structure, good versatility, and strong stability, which can effectively ensure the stability of large-size borehole inspection and reduce the difficulty of using the inspection instrument, thus helping to obtain high-quality borehole images.

[0006] To achieve the above objectives, this utility model provides a conical probe for a borehole inspection instrument in coal mine roadways and an auxiliary fixing device, including a probe, an image acquisition component, and a probe column.

[0007] The probe is truncated cone-shaped;

[0008] The image acquisition component includes a planar camera, a planar ring light, a curved camera, and a curved ring light; the planar camera is embedded in the central area of ​​the small-diameter end face of the probe; the planar ring light is located outside the planar camera and is embedded in the edge portion of the small-diameter end face of the probe; four curved cameras are evenly distributed circumferentially and are embedded in the middle section of the side of the probe; the curved ring light is embedded in the bottom outer side of the side of the probe.

[0009] The probe column includes an upper probe column, a radial telescopic positioning component, and a lower probe column;

[0010] The outer diameter of the upper column of the probe is the same as the outer diameter of the large diameter end of the probe, and the front end of the upper column of the probe is coaxially fixedly connected to the large diameter end of the probe.

[0011] The radial telescopic positioning assembly consists of multiple radial mounting holes evenly spaced on the upper cylindrical body of the probe, and multiple telescopic support mechanisms evenly distributed and correspondingly arranged in the radial mounting holes. Each telescopic support mechanism includes a primary sleeve, a secondary sleeve, a tertiary sleeve, a rotating roller, and a radial telescopic drive component. The primary sleeve is axially slidably mounted in the radial mounting holes. Simultaneously, a primary limiting component is provided between the primary sleeve and the radial mounting holes to limit the maximum radial displacement of the primary sleeve. The secondary sleeve is axially slidably mounted... In the primary sleeve, a secondary limiting component is provided between the secondary sleeve and the primary sleeve for limiting the maximum radial displacement of the secondary sleeve. The tertiary sleeve is axially slidably installed in the secondary sleeve, and a tertiary limiting component is provided between the tertiary sleeve and the secondary sleeve for limiting the maximum radial displacement of the tertiary sleeve. The rotating roller is installed at the outer end of the tertiary sleeve. The radial telescopic drive is located at the axis of the tertiary sleeve, with its fixed end fixedly installed at the inner end of the radial mounting hole, and its telescopic end fixedly connected to the outer end of the tertiary sleeve.

[0012] The radial telescopic positioning components are in the form of two, and are respectively located at the front and rear of the upper column of the probe;

[0013] The outer diameter of the lower column of the probe is the same as the outer diameter of the upper column of the probe, and the front end of the lower column of the probe is rotatably connected to the rear end of the upper column of the probe through a central pivot.

[0014] As a preferred embodiment, the primary limiting assembly includes an inner limiting ring and an outer limiting ring. The inner diameter of the inner limiting ring is adapted to the outer diameter of the primary sleeve, and its outer ring surface is coaxially fixedly connected to the inner side of the outer end of the radial mounting hole. The outer diameter of the outer limiting ring is adapted to the inner diameter of the radial mounting hole, and its inner ring surface is fixedly connected to the outer side of the lower end of the primary sleeve. The upper end face of the outer limiting ring and the lower end face of the inner limiting ring are in a limiting fit.

[0015] As a preferred embodiment, the secondary limiting assembly includes an inner limiting ring II and an outer limiting ring II. The inner diameter of the inner limiting ring II is adapted to the outer diameter of the secondary sleeve, and its outer ring surface is coaxially fixedly connected to the inner side of the outer end of the primary sleeve. The outer diameter of the outer limiting ring II is adapted to the inner diameter of the primary sleeve, and its inner ring surface is fixedly connected to the outer side of the lower end of the secondary sleeve. The upper end face of the outer limiting ring II is in a limiting fit with the lower end face of the inner limiting ring II.

[0016] As a preferred embodiment, the three-stage limiting assembly includes an inner limiting ring three and an outer limiting ring three. The inner diameter of the inner limiting ring three is adapted to the outer diameter of the three-stage sleeve, and its outer ring surface is coaxially fixedly connected to the inner side of the outer end of the two-stage sleeve. The outer diameter of the outer limiting ring three is adapted to the inner diameter of the two-stage sleeve, and its inner ring surface is fixedly connected to the outer side of the lower end of the three-stage sleeve. The upper end face of the outer limiting ring three is in a limiting fit with the lower end face of the inner limiting ring three.

[0017] Furthermore, in order to ensure that there is no distortion or blurring during imaging and to facilitate the acquisition of high-quality images, both the planar camera and the curved camera are self-focusing, wide-angle, high-definition cameras.

[0018] Furthermore, in order to cooperate with high-definition cameras to obtain images with higher image quality, both the planar ring light and the curved ring light are adaptive brightness adjustment lights.

[0019] As a preferred embodiment, the radial telescopic drive is a linear electric actuator, a pneumatic cylinder, or a hydraulic cylinder.

[0020] As a preferred embodiment, the number of curved cameras is four.

[0021] As a preferred embodiment, the number of telescopic support mechanisms is four.

[0022] In this invention, the probe is shaped like a frustum, which effectively reduces resistance during insertion and minimizes the chance of jamming. A planar camera is installed at the center of the small-diameter end face of the probe, and a planar ring light is installed around the planar camera to provide illumination, ensuring high-quality images. Multiple curved cameras are installed on the side of the probe, and a curved ring light is installed on the bottom outer side of the probe side to provide illumination for the multiple curved cameras, ensuring high-quality images. By setting a radial telescopic positioning assembly, mainly composed of multiple telescopic support mechanisms, on the outside of the upper column of the probe, the telescopic function of the multiple radial telescopic positioning assemblies can adapt to drilling holes of different diameters, thereby achieving a stable centering function for the inspection device and ensuring that the probe does not shake during operation, which is beneficial for stable inspection of the borehole. The simultaneous use of two radial telescopic positioning assemblies further improves the stability and centering ability of the inspection device, solving the problem of probe swaying back and forth during inspection of large-diameter boreholes. Each telescopic support mechanism features first, second, and third-stage sleeves, driven by a radial telescopic drive component. This allows for a significant range of radial length adjustment, effectively adapting to different borehole diameter requirements. Rotating rollers installed at the outer ends of each telescopic support mechanism act as guides, ensuring smooth advancement and retraction of the viewing device in a centered state. This helps prevent distortion or blurring during imaging, further ensuring image quality. A central pivot connects the front end of the lower probe column to the rear end of the upper probe column, creating a rotatable connection. This ensures the upper probe column remains stationary while the lower probe column rotates, preventing interference and facilitating smooth advancement. Furthermore, in conjunction with the radial telescopic positioning component, this ensures smooth operation of the viewing device, significantly reducing the difficulty of use, lowering the skill requirements for operators, and further ensuring image quality.

[0023] The device has a simple structure, good versatility, and strong stability. It can effectively ensure the stability of large-size borehole inspection and reduce the difficulty of using the inspection instrument, thus helping to obtain high-quality borehole images. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 yes Figure 1 The right view;

[0026] Figure 3 This is a schematic diagram of the probe structure in this utility model;

[0027] Figure 4 This is a schematic diagram of the radial telescopic positioning component in this utility model.

[0028] In the diagram: 1. Probe, 2. Upper column of probe, 3. Central pivot, 4. Lower column of probe, 5. Radial telescopic positioning assembly, 6. Curved camera, 7. Curved ring light, 8. Probe column, 9. Planar camera, 10. Planar ring light, 11. Telescopic support mechanism, 12. First-stage sleeve, 13. Second-stage sleeve, 14. Third-stage sleeve, 15. Rotating roller, 16. Radial mounting hole, 17. Inner limit ring one, 18. Outer limit ring one, 19. Inner limit ring two, 20. Outer limit ring two, 21. Inner limit ring three, 22. Outer limit ring three, 23. Radial telescopic drive component. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] like Figures 1 to 4 As shown, this utility model provides a conical probe and auxiliary fixing device for a borehole inspection instrument used in coal mine roadways, including a probe 1, an image acquisition component, and a probe column 8;

[0031] The probe 1 is shaped like a frustum;

[0032] The image acquisition assembly includes a planar camera 9, a planar ring light 10, a curved camera 6, and a curved ring light 7. The planar camera 9 is embedded in the central area of ​​the small-diameter end face of the probe 1. The planar ring light 10 is located outside the planar camera 9 and is embedded in the edge portion of the small-diameter end face of the probe 1. Multiple curved cameras 6 are evenly distributed circumferentially and embedded in the middle section of the side of the probe 1, with the outer surface of each curved camera 6 overlapping the side of the probe 1. The curved ring light 7 is embedded in the bottom outer side of the side of the probe 1. As a further preferred embodiment, each curved camera 6 and the planar camera 9 has a tempered glass protective cover on its outer surface.

[0033] The probe column 8 includes an upper probe column 2, a radial telescopic positioning component 5, and a lower probe column 4.

[0034] The outer diameter of the upper column 2 of the probe is the same as the outer diameter of the large diameter end of the probe 1, and the front end of the upper column 2 of the probe is coaxially fixedly connected to the large diameter end of the probe 1.

[0035] The radial telescopic positioning assembly 5 consists of multiple radial mounting holes 16 evenly spaced circumferentially on the upper column 2 of the probe, and multiple telescopic support mechanisms 11 evenly distributed circumferentially and correspondingly arranged in the multiple radial mounting holes 16. Each telescopic support mechanism 11 includes a primary sleeve 12, a secondary sleeve 13, a tertiary sleeve 14, a rotating roller 15, and a radial telescopic drive component 23. The primary sleeve 12 is axially slidably mounted in the radial mounting holes 16. Simultaneously, a primary limiting component is provided between the primary sleeve 12 and the radial mounting holes 16 for limiting the maximum radial displacement of the primary sleeve 12. The secondary sleeve 13 is axially slidably mounted... In the first-stage sleeve 12, a second-stage limiting component is provided between the second-stage sleeve 13 and the first-stage sleeve 12 for limiting the maximum radial displacement of the second-stage sleeve 13. The third-stage sleeve 14 is axially slidably installed in the second-stage sleeve 13. At the same time, a third-stage limiting component is provided between the third-stage sleeve 14 and the second-stage sleeve 13 for limiting the maximum radial displacement of the third-stage sleeve 14. The rotating roller 15 is installed at the outer end of the third-stage sleeve 14. The radial telescopic drive 23 is located at the axis of the third-stage sleeve 14, with its fixed end fixedly installed at the inner end of the radial mounting hole 16, and its telescopic end fixedly connected to the outer end of the third-stage sleeve 14.

[0036] The radial telescopic positioning component 5 is in the form of two parts, and is respectively located at the front and rear of the upper column 2 of the probe;

[0037] The outer diameter of the lower column 4 of the probe is the same as the outer diameter of the upper column 2 of the probe, and the front end of the lower column 4 of the probe is rotatably connected to the rear end of the upper column 2 of the probe via the central pivot 3.

[0038] As a preferred embodiment, the primary limiting assembly includes an inner limiting ring 17 and an outer limiting ring 18. The inner diameter of the inner limiting ring 17 is adapted to the outer diameter of the primary sleeve 12, and its outer ring surface is coaxially fixedly connected to the inner side of the outer end of the radial mounting hole 16. The outer diameter of the outer limiting ring 18 is adapted to the inner diameter of the radial mounting hole 16, and its inner ring surface is fixedly connected to the outer side of the lower end of the primary sleeve 12. The upper end face of the outer limiting ring 18 is in a limiting fit with the lower end face of the inner limiting ring 17.

[0039] As a preferred embodiment, the secondary limiting assembly includes an inner limiting ring 19 and an outer limiting ring 20. The inner diameter of the inner limiting ring 19 is adapted to the outer diameter of the secondary sleeve 13, and its outer ring surface is coaxially fixedly connected to the inner side of the outer end of the primary sleeve 12. The outer diameter of the outer limiting ring 20 is adapted to the inner diameter of the primary sleeve 12, and its inner ring surface is fixedly connected to the outer side of the lower end of the secondary sleeve 13. The upper end surface of the outer limiting ring 20 is in a limiting fit with the lower end surface of the inner limiting ring 19.

[0040] As a preferred embodiment, the three-stage limiting assembly includes an inner limiting ring 21 and an outer limiting ring 22. The inner diameter of the inner limiting ring 21 is adapted to the outer diameter of the three-stage sleeve 14, and its outer ring surface is coaxially fixedly connected to the inner side of the outer end of the two-stage sleeve 13. The outer diameter of the outer limiting ring 22 is adapted to the inner diameter of the two-stage sleeve 13, and its inner ring surface is fixedly connected to the outer side of the lower end of the three-stage sleeve 14. The upper end face of the outer limiting ring 22 is in a limiting fit with the lower end face of the inner limiting ring 21.

[0041] Preferably, both the planar camera 9 and the curved camera 6 are self-focusing, wide-angle, high-definition cameras. Meanwhile, both the planar ring light 10 and the curved ring light 7 are adaptive brightness adjustment lights. Thus, the combined use of the high-definition wide-angle camera and the adaptive brightness adjustment light effectively solves the problem of low alignment accuracy in traditional cameras, enabling the acquisition of high-quality image data.

[0042] As a preferred embodiment, the radial telescopic drive 23 is a linear electric push rod motor, a pneumatic cylinder, or a hydraulic cylinder.

[0043] As a preferred embodiment, the number of curved cameras 6 is four.

[0044] As a preferred embodiment, the number of telescopic support mechanisms 11 is four.

[0045] Instructions for use: After drilling a large-diameter borehole, flush the borehole. Connect the end of the lower column 4 of the probe in the viewing device to the front end of the push rod. Push the viewing device into the borehole using the push rod. Simultaneously, control the multiple telescopic support mechanisms in the two radial telescopic positioning components 5 to extend outwards to a position suitable for the current borehole diameter. At the same time, use rotation and rolling to press against the borehole wall to center the viewing device. Then, manually push the viewing device deeper into the borehole at a uniform speed. Simultaneously, use the planar ring light 10 to provide illumination for the planar camera 9 and the curved ring light 7 to provide illumination for the multiple curved cameras 6. Simultaneously, use the planar camera 9 and the multiple curved cameras 6 to take pictures. In this way, with the supplementary lighting of the planar ring light 10 and the curved ring light 7, and with the positioning and guiding action of the two radial telescopic positioning components 5, the planar camera 9 and the multiple curved cameras 6 can obtain high-definition images, thereby obtaining the evolution and development of fractures inside the borehole. Furthermore, the captured and recorded images can be analyzed and processed to obtain a borehole columnar section.

[0046] In this invention, the probe is shaped like a frustum, which effectively reduces resistance during insertion and minimizes the chance of jamming. A planar camera is installed at the center of the small-diameter end face of the probe, and a planar ring light is installed around the planar camera to provide illumination, ensuring high-quality images. Multiple curved cameras are installed on the side of the probe, and a curved ring light is installed on the bottom outer side of the probe side to provide illumination for the multiple curved cameras, ensuring high-quality images. By setting a radial telescopic positioning assembly, mainly composed of multiple telescopic support mechanisms, on the outside of the upper column of the probe, the telescopic function of the multiple radial telescopic positioning assemblies can adapt to drilling holes of different diameters, thereby achieving a stable centering function for the inspection device and ensuring that the probe does not shake during operation, which is beneficial for stable inspection of the borehole. The simultaneous use of two radial telescopic positioning assemblies further improves the stability and centering ability of the inspection device, solving the problem of probe swaying back and forth during inspection of large-diameter boreholes. Each telescopic support mechanism features first, second, and third-stage sleeves, driven by a radial telescopic drive component. This allows for a significant range of radial length adjustment, effectively adapting to different borehole diameter requirements. Rotating rollers installed at the outer ends of each telescopic support mechanism act as guides, ensuring smooth advancement and retraction of the viewing device in a centered state. This helps prevent distortion or blurring during imaging, further ensuring image quality. A central pivot connects the front end of the lower probe column to the rear end of the upper probe column, creating a rotatable connection. This ensures the upper probe column remains stationary while the lower probe column rotates, preventing interference and facilitating smooth advancement. Furthermore, in conjunction with the radial telescopic positioning component, this ensures smooth operation of the viewing device, significantly reducing the difficulty of use, lowering the skill requirements for operators, and further ensuring image quality.

[0047] The device has a simple structure, good versatility, and strong stability. It can effectively ensure the stability of large-size borehole inspection and reduce the difficulty of using the inspection instrument, thus helping to obtain high-quality borehole images.

Claims

1. A conical probe and auxiliary fixing device for a borehole inspection instrument used in coal mine roadways, comprising a probe (1), an image acquisition component, and a probe column (8), characterized in that... ； The probe (1) is frustum-shaped; The image acquisition component includes a planar camera (9), a planar ring light (10), a curved camera (6), and a curved ring light (7); the planar camera (9) is embedded in the central area of ​​the small-diameter end face of the probe (1); the planar ring light (10) is located outside the planar camera (9) and is embedded in the edge part of the small-diameter end face of the probe (1); multiple curved cameras (6) are evenly distributed circumferentially and are embedded in the middle section of the side of the probe (1); the curved ring light (7) is embedded in the bottom outer side of the side of the probe (1); The probe column (8) includes an upper probe column (2), a radial telescopic positioning component (5), and a lower probe column (4). The outer diameter of the upper column (2) of the probe is consistent with the outer diameter of the large diameter end of the probe (1), and the front end of the upper column (2) of the probe is coaxially fixedly connected to the large diameter end of the probe (1). The radial telescopic positioning assembly (5) consists of multiple radial mounting holes (16) uniformly opened circumferentially on the upper column (2) of the probe, and multiple telescopic support mechanisms (11) uniformly distributed circumferentially and correspondingly arranged in the multiple radial mounting holes (16); the telescopic support mechanism (11) includes a primary sleeve (12), a secondary sleeve (13), a tertiary sleeve (14), a rotating roller (15), and a radial telescopic drive component (23). The primary sleeve (12) is axially slidably installed in the radial mounting holes (16). At the same time, a primary limiting component for limiting the maximum radial displacement of the primary sleeve (12) is provided between the primary sleeve (12) and the radial mounting holes (16). The secondary sleeve (13) is axially slidably installed in the radial mounting holes (16). The first-stage sleeve (12) is installed in the first-stage sleeve (12). At the same time, a second-stage limiting component is provided between the second-stage sleeve (13) and the first-stage sleeve (12) for limiting the maximum radial displacement of the second-stage sleeve (13). The third-stage sleeve (14) is axially slidably installed in the second-stage sleeve (13). At the same time, a third-stage limiting component is provided between the third-stage sleeve (14) and the second-stage sleeve (13) for limiting the maximum radial displacement of the third-stage sleeve (14). The rotating roller (15) is installed at the outer end of the third-stage sleeve (14). The radial telescopic drive (23) is located at the axis of the third-stage sleeve (14). Its fixed end is fixedly installed at the inner end of the radial mounting hole (16), and its telescopic end is fixedly connected to the outer end of the third-stage sleeve (14). The radial telescopic positioning component (5) is in the form of two, and is respectively located at the front and rear of the upper column (2) of the probe; The outer diameter of the lower column (4) of the probe is the same as the outer diameter of the upper column (2) of the probe, and the front end of the lower column (4) of the probe is rotatably connected to the rear end of the upper column (2) of the probe through the central pivot (3).

2. The conical probe and auxiliary fixing device for a borehole inspection instrument used in coal mine roadways according to claim 1, characterized in that, The first-level limiting component includes an inner limiting ring (17) and an outer limiting ring (18). The inner diameter of the inner limiting ring (17) is adapted to the outer diameter of the first-level sleeve (12), and its outer ring surface is coaxially fixedly connected to the inner side of the outer end of the radial mounting hole (16). The outer diameter of the outer limiting ring (18) is adapted to the inner diameter of the radial mounting hole (16), and its inner ring surface is fixedly connected to the outer side of the lower end of the first-level sleeve (12). The upper end face of the outer limiting ring (18) is limited and matched with the lower end face of the inner limiting ring (17).

3. The conical probe and auxiliary fixing device for a borehole inspection instrument used in coal mine roadways according to claim 2, characterized in that, The secondary limiting assembly includes an inner limiting ring 2 (19) and an outer limiting ring 2 (20). The inner diameter of the inner limiting ring 2 (19) is adapted to the outer diameter of the secondary sleeve (13), and its outer ring surface is coaxially fixedly connected to the inner side of the outer end of the primary sleeve (12). The outer diameter of the outer limiting ring 2 (20) is adapted to the inner diameter of the primary sleeve (12), and its inner ring surface is fixedly connected to the outer side of the lower end of the secondary sleeve (13). The upper end surface of the outer limiting ring 2 (20) is limited and matched with the lower end surface of the inner limiting ring 2 (19).

4. The conical probe and auxiliary fixing device for a borehole inspection instrument used in coal mine roadways according to claim 3, characterized in that, The three-level limiting assembly includes an inner limiting ring three (21) and an outer limiting ring three (22). The inner diameter of the inner limiting ring three (21) is adapted to the outer diameter of the three-level sleeve (14), and its outer ring surface is coaxially fixedly connected to the inner side of the outer end of the two-level sleeve (13). The outer diameter of the outer limiting ring three (22) is adapted to the inner diameter of the two-level sleeve (13), and its inner ring surface is fixedly connected to the outer side of the lower end of the three-level sleeve (14). The upper end surface of the outer limiting ring three (22) is limited and matched with the lower end surface of the inner limiting ring three (21).

5. The conical probe and auxiliary fixing device for a borehole inspection instrument used in coal mine roadways according to claim 1, characterized in that, Both the planar camera (9) and the curved camera (6) are self-focusing, wide-angle, high-definition cameras.

6. The conical probe and auxiliary fixing device for a borehole inspection instrument used in coal mine roadways according to claim 1, characterized in that, Both the planar ring light (10) and the curved ring light (7) are adaptive brightness adjustment lights.

7. The conical probe and auxiliary fixing device for a borehole inspection instrument used in coal mine roadways according to claim 1, characterized in that, The radial telescopic drive (23) is a linear electric push rod motor, a cylinder, or a hydraulic cylinder.

8. The conical probe and auxiliary fixing device for a borehole inspection instrument used in coal mine roadways according to claim 1, characterized in that, The number of curved cameras (6) is four.

9. A conical probe and auxiliary fixing device for a borehole inspection instrument used in coal mine roadways according to claim 1, characterized in that, The number of telescopic support mechanisms (11) is four.

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