Vertical ultra-deep hole wall image acquisition and detection system

Abstract

The invention belongs to the field of drilling detection, and provides a vertical ultra-deep hole wall image acquisition and detection system which comprises a transparent shell, an upper base, a lower base, a motor, a main shaft, a detection platform, an adjusting mechanism and a spring telescopic rod. Rotation motion is converted into lifting and rotation composite motion of the detection platform through transmission of the main shaft, it is ensured that the detection platform can cover different circumferential areas of the hole wall, the height of the detection platform can be finely adjusted, the height of the whole system is not changed, and adjacent areas are collected without lifting the whole system again; the rollers are attached to the hole wall through elastic supporting of the spring telescopic rod, the stable posture of the system in the hole is maintained, the adjusting mechanism changes the stretching length of the spring telescopic rod through mechanical transmission, and the obstacle crossing function is achieved.

Description

Technical Field

[0001] This invention belongs to the field of borehole detection, specifically relating to a vertical ultra-deep borehole wall image acquisition and detection system. Background Technology

[0002] In fields such as deep resource exploration, advanced geological prediction of large tunnels, deep foundation pit engineering investigation, and monitoring of surrounding rock in underground engineering, accurately obtaining information on the structure and geological characteristics of deep boreholes or shaft walls is crucial. This information includes the distribution of stratigraphic lithology, joint and fracture networks, location of weak structural planes, integrity of surrounding rock, and hydrogeological phenomena, serving as the core basis for engineering design and safety assessment. However, traditional detection equipment can only achieve unidirectional lifting and lowering movements, or requires external complex mechanisms to drive rotation, making it difficult to simultaneously complete lifting and rotating actions in coordination. The fixed-direction acquisition method of traditional equipment easily creates blind spots, especially when there are defects in the borehole wall, making it impossible to capture feature information from all directions. Furthermore, some equipment with rotation functions has complex transmission structures and poor sealing, making it prone to malfunction due to moisture intrusion in ultra-deep borehole environments.

[0003] To address the above problems, this invention provides a vertical ultra-deep borehole wall image acquisition and detection system, which can effectively achieve omnidirectional acquisition and detection of borehole wall images, realize coordinated lifting and rotation actions, and improve the comprehensiveness of detection. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a vertical ultra-deep borehole wall image acquisition and detection system to solve the problems in the prior art. The technical solution adopted by this invention is as follows: A vertical ultra-deep hole wall image acquisition and detection system includes a transparent shell, an upper base, a lower base, a motor, a main shaft, a detection platform, an adjustment mechanism, and a spring telescopic rod; The top and bottom of the transparent housing are respectively sealed to the upper base and the lower base; the motor is mounted on the upper base, and the upper base is connected to a traction rope; the main shaft is located inside the transparent housing, and the main shaft is rotatably connected to the upper base and the lower base; the output end of the motor is connected to the main shaft and is used to drive the main shaft to rotate. The main shaft is connected to the detection platform, which is used to acquire images of the borehole wall and measure the borehole diameter. The main shaft is used to drive the detection platform to rise and rotate. The outer sides of both the upper base and the lower base are provided with multiple spring telescopic rods, and the ends of the spring telescopic rods are rotatably connected to rollers, which are used to contact the hole wall; There are two adjustment mechanisms: an upper adjustment mechanism on the upper base and a lower adjustment mechanism on the lower base. The upper and lower adjustment mechanisms are respectively connected to corresponding spring telescopic rods for adjusting the distance between the spring telescopic rods and the hole wall.

[0005] Furthermore, it also includes a connecting mechanism, which is provided on the main shaft and the detection platform is provided on the side of the connecting mechanism. When the main shaft rotates, the connecting mechanism drives the detection platform to rise and rotate.

[0006] Furthermore, the connecting mechanism includes a lifting bushing, which is sleeved on the main shaft and threadedly connected to the main shaft. The top and bottom of the lifting bushing are provided with slide rail mechanisms to prevent the lifting bushing from rotating. The detection platform is located outside the lifting bushing.

[0007] Furthermore, the connecting mechanism also includes a rotating sleeve and a limiting block; the outer surface of the main shaft is provided with an opening along its axis, the limiting block is slidably located in the opening, the rotating sleeve is rotatably sleeved on the lifting shaft sleeve, and the rotating sleeve is connected to the limiting block; when the main shaft rotates, the lifting shaft sleeve drives the limiting block to rotate, causing the rotating sleeve to move and rotate along the main shaft, thereby causing the detection platform to rise, fall, and rotate.

[0008] Furthermore, the outer surface of the lifting bushing is provided with an annular groove, and a bearing is fitted inside the annular groove. The outer ring of the bearing is connected to the rotating sleeve by connecting bolts.

[0009] Furthermore, the slide rail mechanism includes a connecting rod, a slide rail, and a slider; the slide rail is fixedly connected to the inner side of the transparent housing, the slider is slidably mounted on the slide rail, and the slider is fixedly connected to the connecting rod; Multiple slide rail mechanisms are provided and symmetrically distributed on the upper and lower sides of the connecting mechanism. The connecting rod of the upper slide rail mechanism is fixedly connected to the top of the lifting bushing, and the connecting rod of the lower slide rail mechanism is rotatably connected to the bottom of the rotating sleeve.

[0010] Furthermore, the upper slider is fixedly connected to the first pressure ring, and the lower slider is fixedly connected to the second pressure ring. Both the first and second pressure rings can be slidably sleeved on the main shaft. The adjustment mechanism includes a drive assembly, which includes a push rod, a limiting ring, a spring, a rack, and an arc-shaped gear ring. Both the upper and lower bases are provided with sliding holes adapted to the push rod. One end of the push rod is slidably disposed within a corresponding slider, and the other end of the push rod is spaced apart from the first and second pressure rings. The upper and lower bases each have a cavity. The limiting ring is fixedly connected to the side of the push rod, and the limiting ring is located within the cavity. The spring is disposed above and below the limiting ring. The rack is fixedly connected to the side of the push rod. Both the upper base and the lower base have annular notches on their outer surfaces. The end of the spring telescopic rod away from the roller is rotatably disposed in the annular notch. The end of the spring telescopic rod located in the annular notch is fixedly connected to the arc-shaped toothed ring, and the arc-shaped toothed ring meshes with the rack. The first pressure ring and the second pressure ring are used to push the corresponding top rod to move, so that the rack drives the arc-shaped gear ring to rotate, so that the spring telescopic rod rotates to adjust the distance between the roller and the corresponding upper base and lower base, thereby realizing the obstacle crossing function; The drive components are provided in multiple ways, and the multiple drive components are distributed circumferentially around the main shaft, while the upper and lower adjustment mechanisms are symmetrically distributed.

[0011] Furthermore, the side of the annular notch is provided with a limiting hole coaxial with the sliding hole, and the end of the push rod is slidably disposed in the corresponding limiting hole.

[0012] The present invention has the following beneficial effects: The present invention transforms the rotational motion into a combined lifting and rotating motion of the detection platform through the transmission of the main shaft, ensuring that the detection platform can cover different circumferential areas of the borehole wall, and can finely adjust the height of the detection platform without changing the height of the entire system, so as to collect data from adjacent areas without raising or lowering the entire system again; the elastic support of the spring telescopic rod makes the roller fit against the borehole wall, maintaining the stable posture of the system in the borehole, and the adjustment mechanism changes the extension length of the spring telescopic rod through mechanical transmission to achieve the obstacle crossing function. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram showing the distribution of the seven detection platforms; Figure 4 yes Figure 1 Enlarged diagram of point B in the middle. Detailed Implementation

[0014] The following will be based on embodiments of the present invention. Figures 1-4 The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0015] like Figures 1-3 A vertical ultra-deep hole wall image acquisition and detection system includes a transparent shell 2, an upper base 9, a lower base 12, a motor 10, a main shaft 8, a detection platform 7, an adjustment mechanism, and a spring telescopic rod 14. The top and bottom of the transparent outer shell 2 are respectively sealed and connected to the upper base 9 and the lower base 12; the motor 10 is installed on the upper base 9, the upper base 9 is connected to the traction rope 13, the main shaft 8 is located inside the transparent outer shell 2, and the main shaft 8 is rotatably connected to the upper base 9 and the lower base 12; the output end of the motor 10 is connected to the main shaft 8 to drive the main shaft 8 to rotate. The main shaft 8 is connected to the detection platform 7, which is used to acquire images of the borehole wall 1 and measure the borehole diameter. The main shaft 8 is used to drive the detection platform 7 to rise and rotate. The outer sides of the upper base 9 and the lower base 12 are provided with a plurality of spring telescopic rods 14, and the ends of the spring telescopic rods 14 are rotatably connected to rollers, which are used to contact the hole wall 1. There are two adjustment mechanisms: an upper adjustment mechanism 15 on the upper base 9 and a lower adjustment mechanism 16 on the lower base 12. The upper adjustment mechanism 15 and the lower adjustment mechanism 16 are respectively connected to corresponding spring telescopic rods 14 to adjust the distance between the spring telescopic rods 14 and the hole wall 1.

[0016] The transparent outer shell 2 can be made of glass, plastic, or other materials. The transparent outer shell 2 is sealed to the upper base 9 and lower base 12, creating a closed space to protect the internal components such as the motor 10, main shaft 8, and detection platform 7 from moisture and dust corrosion within the ultra-deep hole. The top of the traction rope 13 can be connected to equipment such as a winch to raise and lower the entire system. The entire system is slowly lowered into the hole via the traction rope 13. During the lowering process, the spring telescopic rod 14 extends under its own elasticity, causing the end rollers to tightly fit against the hole wall 1, thus limiting the system's position. The motor 10 can be connected to a corresponding battery or powered by a cable leading to the ground. The top of the main shaft 8 passes through the upper base 9 and is fixedly connected to the output end of the motor 10. During detection and data acquisition, motor 10 is started, driving the main shaft 8 to rotate. The detection platform 7 rises and rotates synchronously with the main shaft 8. During the movement, the detection platform 7 continuously acquires image data of the hole wall 1 and measures the hole diameter. The roller at the end of the spring telescopic rod 14 can adaptively overcome smaller obstacles under the extension and retraction of the spring telescopic rod 14. However, when encountering obstacles such as large protrusions or sudden changes in the inner diameter of the hole wall 1, the roller cannot pass smoothly, and the entire system cannot continue to descend. At this time, the lower adjustment mechanism 16 is activated first to adjust the distance between the corresponding spring telescopic rod 14 and the hole wall 1, allowing the roller to pass smoothly over the obstacle. Then, the upper adjustment mechanism 15 allows the upper roller to pass over the obstacle, realizing the obstacle-crossing function. After the detection is completed, the system is retrieved outside the hole by the traction rope 13.

[0017] This invention transforms rotational motion into a combined lifting and rotating motion of the detection platform 7 via the transmission of the main shaft 8. This ensures that the detection platform 7 can cover different circumferential areas of the borehole wall 1 and can finely adjust the height of the detection platform 7 without changing the overall system height, thus collecting data from adjacent areas without raising or lowering the entire system again. The elastic support of the spring telescopic rod 14 keeps the rollers in contact with the borehole wall 1, maintaining the stable posture of the system within the borehole. The adjustment mechanism changes the extension length of the spring telescopic rod 14 through mechanical transmission, thereby achieving obstacle-crossing functionality.

[0018] like Figure 3Multiple detection platforms 7 are evenly arranged in a ring, with at least two platforms. Cameras, laser rangefinders, ultrasonic detectors, infrared thermal imagers, and other equipment can be mounted on each detection platform 7; preferably, cameras and laser rangefinders are used, with one camera mounted on one of the detection platforms 7; multiple laser rangefinders can be mounted on various detection platforms 7. During one rotation of the detection platform 7, the platform rises and falls slightly, a height difference that does not affect the camera's image acquisition. During the rising, falling, and rotating process, the laser rangefinders collect distance data and convert it into aperture data. The average of the data measured by each laser rangefinder is used to obtain the average inner diameter of the aperture. The change in distance measured by each laser rangefinder reflects the taper and unevenness of the aperture wall 1. During the rising, falling, and rotating process, each laser rangefinder measures the aperture in a spiral manner. Compared to traditional circumferential rotation and axial movement measurements, this invention provides a larger measurement surface and more comprehensive data.

[0019] In addition, the spring telescopic rod 8 is existing technology, including a sleeve, a telescopic rod, and a built-in spring. The elastic force of the built-in spring provides an outward thrust to the telescopic rod, making the roller fit tightly against the hole wall 1. The motor 10 can be installed in the motor housing 11, which is fixedly connected to the upper base 9, and the traction rope 13 is fixedly connected to the top of the motor housing 11.

[0020] Furthermore, it also includes a connecting mechanism 6, which is provided on the main shaft 8, and the detection platform 7 is provided on the side of the connecting mechanism 6. When the main shaft 8 rotates, the connecting mechanism 6 drives the detection platform 7 to rise and rotate.

[0021] Motor 10 drives main shaft 8 to rotate, and main shaft 8 transmits motion to connecting mechanism 6. Connecting mechanism 6 converts the rotational motion of main shaft 8 into its own lifting and rotational motion through internal transmission structure, thereby driving the side detection platform 7 to rise and rotate synchronously, so that detection platform 7 can perform axial and circumferential image acquisition and aperture measurement on hole wall 1.

[0022] Furthermore, the connecting mechanism 6 includes a lifting bushing 601, which is sleeved on the main shaft 8 and threadedly connected to the main shaft 8. The top and bottom of the lifting bushing 601 are provided with slide rail mechanisms to prevent the lifting bushing 601 from rotating. The detection platform 7 is located outside the lifting bushing 601.

[0023] The lifting sleeve 601 is threadedly connected to the main shaft 8, and the slide rail mechanism restricts the lifting sleeve 601 to rotate synchronously with the main shaft 8. The rotational motion of the main shaft 8 is converted into the linear lifting motion of the lifting sleeve 601 along the axis of the main shaft 8 through the threaded connection. When the lifting sleeve 601 lifts and lowers, it drives the outer detection platform 7 to lift and lower synchronously, so as to realize the detection and image acquisition of the hole wall 1 at different depths.

[0024] Furthermore, the connecting mechanism 6 also includes a rotating sleeve 602 and a limiting block 605; the outer side of the main shaft 8 is provided with an opening 801 along its axis, the limiting block 605 is slidably located in the opening 801, the rotating sleeve 602 is rotatably sleeved on the lifting shaft sleeve 601, and the rotating sleeve 602 is connected to the limiting block 605; when the main shaft 8 rotates, the lifting shaft sleeve 601 drives the limiting block 605 to rotate, causing the rotating sleeve 602 to move and rotate along the main shaft 8, thereby causing the detection platform 7 to rise, fall, and rotate.

[0025] When the motor 10 drives the main shaft 8 to rotate, the main shaft 8 causes the lifting sleeve 601 to rise and fall axially through the threaded transmission. The lifting sleeve 601 drives the rotating sleeve 602 to rise and fall synchronously. The opening 801 of the main shaft 8 drives the limiting block 605 to rotate synchronously in the circumferential direction. The limiting block 605 further drives the rotating sleeve 602 to rotate circumferentially around the lifting sleeve 601. The rotating sleeve 602 completes the lifting and rotation movements at the same time, thereby driving the detection platform 7 to realize the composite movement of lifting and rotation, and to perform all-round detection and image acquisition on the hole wall 1.

[0026] It should be noted that the spindle 8 is first machined with external threads, and then openings 801 are cut on both sides to form discontinuous threads. The width of the openings 801 should be small so as not to affect the threaded rotation of the lifting bushing 601.

[0027] Furthermore, the outer side of the lifting bushing 601 is provided with an annular groove, and a bearing 603 is sleeved in the annular groove. The outer ring of the bearing 603 is connected to the rotating sleeve 602 by a connecting bolt 604.

[0028] The outer ring of bearing 603 can be fixedly connected to a protrusion, which is connected to connecting bolt 604 to fix the position of rotating sleeve 602 and rotate it with lifting shaft sleeve 601. Multiple bearings 603 can be provided. Rotating sleeve 602 and limiting block 605 can be connected by bolts.

[0029] Furthermore, the slide rail mechanism includes a connecting rod 5, a slide rail 3, and a slider 4; the slide rail 3 is fixedly connected to the inner side of the transparent outer shell 2, the slider 4 is slidably disposed on the slide rail 3, and the slider 4 is fixedly connected to the connecting rod 5; Multiple slide rail mechanisms are provided and symmetrically distributed on the upper and lower sides of the connecting mechanism 6. The connecting rod 5 of the upper slide rail mechanism is fixedly connected to the top of the lifting bushing 601, and the connecting rod 5 of the lower slide rail mechanism is rotatably connected to the bottom of the rotating sleeve 602.

[0030] The bottom of the rotating sleeve 602 is rotatably connected to a rotating ring 606, which is fixedly connected to the connecting rod 5 located below. When the lifting sleeve 601 moves up and down along the main shaft 8, it drives the connecting rod 5 of the upper slide rail mechanism to move up and down synchronously. The connecting rod 5 drives the slider 4 to slide axially along the slide rail 3. The circumferential rotation of the lifting sleeve 601 is restricted by the cooperation between the slide rail 3 and the slider 4. When the rotating sleeve 602 rotates circumferentially, the lower connecting rod 5 and slider 4 only move up and down without rotating due to the rotational cooperation of the rotating ring 606. Therefore, the circumferential constraint of the lifting sleeve 601 is provided by the upper slide rail mechanism, while the lower slide rail mechanism only serves to stabilize the entire structure.

[0031] Furthermore, the upper slider 4 is fixedly connected to the first pressure ring 17, and the lower slider 4 is fixedly connected to the second pressure ring 18. Both the first pressure ring 17 and the second pressure ring 18 can be slidably sleeved on the main shaft 8. like Figure 4 The adjustment mechanism includes a drive assembly, which includes a push rod 151, a limiting ring 152, a spring 153, a rack 154, and an arc-shaped gear ring 155. Both the upper base 9 and the lower base 12 are provided with sliding holes adapted to the push rod 151. One end of the push rod 151 is slidably disposed within a corresponding slider, and the other end of the push rod 151 is spaced apart from the first pressure ring 17 and the second pressure ring 18. The upper base 9 and the lower base 12 are each provided with a cavity. The limiting ring 152 is fixedly connected to the side of the push rod 151, and the limiting ring 152 is located within the cavity. The spring 153 is disposed above and below the limiting ring 152. The rack 154 is fixedly connected to the side of the push rod 151. Both the upper base 9 and the lower base 12 have annular notches 157 on their outer sides. The end of the spring telescopic rod 14 away from the roller is rotatably disposed in the annular notch 157. The end of the spring telescopic rod 14 located in the annular notch 157 is fixedly connected to the arc-shaped toothed ring 155. The arc-shaped toothed ring 155 meshes with the rack 154. The first pressure ring 17 and the second pressure ring 18 are used to push the corresponding top rod 151 to move, so that the rack 154 drives the arc-shaped gear ring 155 to rotate, so that the spring telescopic rod 14 rotates to adjust the distance between the roller and the corresponding upper base 9 and lower base 12, thereby realizing the obstacle crossing function. Multiple drive components are provided, and the multiple drive components are distributed around the main shaft 8 in a circumferential manner, with the upper and lower adjustment mechanisms symmetrically distributed.

[0032] It should be noted that the stroke of the lifting bushing 601 includes the normal detection stroke and the maximum stroke. During the detection and acquisition process, the lifting bushing 601 moves within the upper and lower detection strokes, and the first and second pressure rings do not contact the top rod 151. When it is necessary to overcome an obstacle, the detection platform 7 stops detection and acquisition. At this time, when the lifting bushing 601 moves to the maximum stroke, the first and second pressure rings push the corresponding top rod 151.

[0033] The sleeve end of the spring telescopic rod 14 is fixedly connected to an arc-shaped toothed ring 155, and its sleeve is rotatably connected to a rotating shaft, which is fixedly connected inside the annular notch 157. Specifically, when the system encounters obstacles such as protrusions in the hole wall 1, the lifting sleeve 601 first rises to its maximum upward stroke. At this time, the upper slider 4 drives the first pressure ring 17 to rise, and the first pressure ring 17 pushes the upper push rod 151 to rise. The push rod 151 slides along the axis of the sliding hole. When the push rod 151 moves, it drives the rack 154 to move synchronously. The rack 154 meshes with the arc-shaped gear ring 155, driving the arc-shaped gear ring 155 to rotate around its rotation center. This causes the spring telescopic rod 14 to rotate around its end in the annular notch 157, thereby increasing the distance between the roller and the outer side of the upper base 9, creating a gap between the roller and the hole wall 1. Then, the entire system is lowered by the traction rope 13, allowing the upper roller to smoothly pass over the obstacle. The lifting sleeve 601 moves downward to its maximum downward stroke, repeating the above steps to rotate the lower spring telescopic rod 14, creating a gap between the lower roller and the hole wall 1. Then, the traction rope 13 lowers the entire system, allowing the lower roller to pass over the obstacle, and the entire system completes the obstacle crossing. After overcoming the obstacle, the lifting bushing 601 returns to its normal detection stroke, the spring telescopic rod 14 returns to its original position, and the roller re-engages with the hole wall 1. The springs 153 above and below the limit ring 152 function as reset mechanisms, allowing the spring telescopic rod 14 to return to a horizontal position.

[0034] Furthermore, the side of the annular notch 157 is provided with a limiting hole 156 coaxial with the sliding hole, and the end of the push rod 151 is slidably disposed in the corresponding limiting hole 156.

[0035] In this invention, the adjustment mechanism includes at least three drive components, which are evenly distributed around the corresponding upper base 9 and lower base 12. Three spring telescopic rods 14 are correspondingly arranged on the outer sides of the upper base 9 and lower base 12. The upper adjustment mechanism is a first adjustment mechanism 15, and the lower adjustment mechanism is a second adjustment mechanism 16. The first adjustment mechanism 15 and the second adjustment mechanism 16 have the same structure and are symmetrically arranged.

[0036] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, alterations, substitutions, or variations made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A vertical ultra-deep borehole wall image acquisition and detection system, characterized in that, It includes a transparent shell (2), an upper base (9), a lower base (12), a motor (10), a main shaft (8), a detection platform (7), an adjustment mechanism, and a spring telescopic rod (14). The top and bottom of the transparent outer shell (2) are respectively sealed and connected to the upper base (9) and the lower base (12); the motor (10) is installed on the upper base (9), the upper base (9) is connected to the traction rope (13), the main shaft (8) is located inside the transparent outer shell (2), and the main shaft (8) is rotatably connected to the upper base (9) and the lower base (12); the output end of the motor (10) is connected to the main shaft (8) to drive the main shaft (8) to rotate; The main shaft (8) is connected to the detection platform (7), which is used to acquire images of the borehole wall (1) and measure the borehole diameter. The main shaft (8) is used to drive the detection platform (7) to rise and rotate. The outer sides of the upper base (9) and the lower base (12) are provided with a plurality of spring telescopic rods (14), and the ends of the spring telescopic rods (14) are rotatably connected to rollers, which are used to contact the hole wall (1). There are two adjustment mechanisms: an upper adjustment mechanism (15) on the upper base (9) and a lower adjustment mechanism (16) on the lower base (12). The upper adjustment mechanism (15) and the lower adjustment mechanism (16) are respectively connected to the corresponding spring telescopic rods (14) to adjust the distance between the spring telescopic rods (14) and the hole wall (1).

2. The vertical ultra-deep borehole wall image acquisition and detection system according to claim 1, characterized in that, It also includes a connecting mechanism (6), which is provided on the main shaft (8). The detection platform (7) is provided on the side of the connecting mechanism (6). When the main shaft (8) rotates, the connecting mechanism (6) drives the detection platform (7) to rise and rotate.

3. The vertical ultra-deep borehole wall image acquisition and detection system according to claim 2, characterized in that, The connecting mechanism (6) includes a lifting bushing (601), which is sleeved on the main shaft (8). The lifting bushing (601) is threadedly connected to the main shaft (8). The top and bottom of the lifting bushing (601) are provided with slide rail mechanisms, which are used to prevent the lifting bushing (601) from rotating. The detection platform (7) is located outside the lifting bushing (601).

4. The vertical ultra-deep borehole wall image acquisition and detection system according to claim 3, characterized in that, The connecting mechanism (6) further includes a rotating sleeve (602) and a limiting block (605); the outer side of the main shaft (8) is provided with an opening (801) along its axis, the limiting block (605) is slidably located in the opening (801), the rotating sleeve (602) is rotatably sleeved on the lifting shaft sleeve (601), and the rotating sleeve (602) is connected to the limiting block (605); when the main shaft (8) rotates, the lifting shaft sleeve (601) drives the limiting block (605) to rotate, so that the rotating sleeve (602) moves and rotates along the main shaft (8), so that the detection platform (7) rises and rotates.

5. The vertical ultra-deep borehole wall image acquisition and detection system according to claim 4, characterized in that, The outer side of the lifting bushing (601) is provided with an annular groove, and a bearing (603) is sleeved in the annular groove. The outer ring of the bearing (603) is connected to the rotating sleeve (602) by a connecting bolt (604).

6. The vertical ultra-deep borehole wall image acquisition and detection system according to claim 4, characterized in that, The slide rail mechanism includes a connecting rod (5), a slide rail (3), and a slider (4); the slide rail (3) is fixedly connected to the inner side of the transparent shell (2), and the slider (4) is slidably arranged on the slide rail (3), and the slider (4) is fixedly connected to the connecting rod (5). Multiple slide rail mechanisms are provided and symmetrically distributed on the upper and lower sides of the connecting mechanism (6). The connecting rod (5) of the upper slide rail mechanism is fixedly connected to the top of the lifting bushing (601), and the connecting rod (5) of the lower slide rail mechanism is rotatably connected to the bottom of the rotating sleeve (602).

7. The vertical ultra-deep borehole wall image acquisition and detection system according to claim 6, characterized in that, The upper slider (4) is fixedly connected to the first pressure ring (17), and the lower slider (4) is fixedly connected to the second pressure ring (18). Both the first pressure ring (17) and the second pressure ring (18) can be slidably sleeved on the main shaft (8). The adjustment mechanism includes a drive assembly, which includes a push rod (151), a limiting ring (152), a spring (153), a rack (154), and an arc-shaped gear ring (155). The upper base (9) and the lower base (12) are both provided with sliding holes adapted to the push rod (151). One end of the push rod (151) is slidably disposed in the corresponding slider, and the other end of the push rod (151) is spaced apart from the first pressure ring (17) and the second pressure ring (18). The upper base (9) and the lower base (12) are respectively provided with cavities. The side of the push rod (151) is fixedly connected to the limiting ring (152), and the limiting ring (152) is located in the cavity. The spring (153) is provided above and below the limiting ring (152). The side of the push rod (151) is fixedly connected to the rack (154). Both the upper base (9) and the lower base (12) have annular notches (157) on their outer sides. The end of the spring telescopic rod (14) away from the roller is rotatably disposed in the annular notch (157). The end of the spring telescopic rod (14) located in the annular notch (157) is fixedly connected to the arc-shaped toothed ring (155), and the arc-shaped toothed ring (155) meshes with the rack (154). The first pressure ring (17) and the second pressure ring (18) are used to push the corresponding top rod (151) to move, so that the rack (154) drives the arc-shaped gear ring (155) to rotate, so that the spring telescopic rod (14) rotates, thereby adjusting the distance between the roller and the corresponding upper base (9) and lower base (12) to achieve the function of overcoming obstacles; The drive components are provided in multiple ways, and the multiple drive components are distributed around the main shaft (8) in a circumferential manner, and the upper and lower adjustment mechanisms are symmetrically distributed.

8. The vertical ultra-deep borehole wall image acquisition and detection system according to claim 7, characterized in that, The side of the annular notch (157) is provided with a limiting hole (156) coaxial with the sliding hole, and the end of the push rod (151) is slidably disposed in the corresponding limiting hole (156).

Images