A top hole fast imaging trajectory detection device

Abstract

This application relates to a rapid imaging trajectory detection device for top holes, comprising: a mobile frame including a frame base, casters mounted on the bottom of the frame base, and a winding turntable rotatably connected to the top of the frame base; a detection component including a rigid cable wound on the winding turntable, and a probe connected to one end of the rigid cable for acquiring drilling information; and a pushing mechanism fixed to the mobile frame, wherein the rigid cable passes through and is clamped within the pushing mechanism and moves with the pushing mechanism. In this application, the rigid cable is released from the winding turntable and then passes through and is clamped within the pushing mechanism, moving with the pushing mechanism. The pushing mechanism is used to wind or unwind the rigid cable, thereby pushing the rigid cable to drive the probe to continuously and uniformly acquire images of the borehole wall within the borehole, thus eliminating misjudgments or omissions of key information caused by image blurring. Furthermore, it achieves automated pushing instead of manual pushing, increasing the number of boreholes detected per day.

Description

Technical Field

[0001] This application relates to the field of coal mine gas control technology, and in particular to a rapid imaging trajectory detection device for top holes. Background Technology

[0002] In fields such as coal mining and geological exploration, borehole inspection is a crucial step in ensuring construction safety and project quality. It requires the use of specialized equipment to obtain data such as borehole wall images and trajectory parameters in order to determine the geological structure, fracture distribution, and drilling accuracy within the borehole.

[0003] Currently, the commonly used mining borehole imaging trajectory detection devices can achieve basic detection functions, but due to limitations in manual pushing, traditional transmission and counting technologies, they are gradually failing to meet the high-precision detection requirements in complex underground environments in terms of image quality, data accuracy, and operational efficiency, thus restricting the reliability of detection results and the efficiency of engineering progress.

[0004] In related technologies, the mining borehole imaging trajectory detection device mainly consists of a main unit, a probe, a depth encoder, and stainless steel or carbon fiber push rods. During operation, the probe's built-in white LED illuminates the borehole wall, while a color low-light camera captures an image of the borehole wall. Simultaneously, a high-performance three-dimensional electronic compass within the probe measures the borehole azimuth and inclination angles at the probe's location. The video signals, control signals, and compass digital signals from the probe are transmitted to the main unit via an intrinsically safe mining communication cable. The depth encoder records the depth of the probe's movement within the borehole. The host computer receives signals from the probe and depth pulse signals from the depth encoder to calculate the probe's depth position. The host computer processes the video signal through image recording, matching, and stitching. As the probe advances deeper into the borehole, the image of the entire borehole wall is automatically matched and stitched into a complete planar unfolded image. During this process, recording and image matching / stitching occur simultaneously. The host computer can also display real-time monitoring images and the stitched unfolded image while processing the images, and can switch between displaying a borehole trajectory projection.

[0005] However, the core reason for image blurring is the manual, segment-by-segment pushing method using stainless steel or carbon fiber pushers for the probe. During manual pushing, the pusher is typically 1 meter long, requiring a reconnection after each probe is pushed. This frequent reconnection severely impacts work efficiency and can cause probe rotation and shaking, affecting image quality. These shortcomings become even more pronounced when there are a large number of upward-facing inspection holes. Furthermore, variations in operator physical strength and differences in control over the pushing rhythm cause frequent fluctuations in the pusher's speed, making it impossible to maintain uniform pushing.

[0006] The imaging effect of the built-in camera of the probe is directly related to the stability of relative motion. Uneven speed will cause the camera to form irregular relative motion with the hole wall (when the speed is fast, the imaging position of the hole wall will shift at the moment of exposure; when the speed is slow, the image in the same area is prone to redundant superposition), which will eventually cause the image to be blurred, and the blur rate is >20%. Image blur often leads to misjudgment or omission of key information. Summary of the Invention

[0007] This application provides a top hole rapid imaging trajectory detection device to solve the problem of image blurring caused by the manual segment-by-segment pushing of the probe using stainless steel or carbon fiber push rods in related technologies.

[0008] This application provides a top hole rapid imaging trajectory detection device, including: A mobile frame, comprising a frame base, casters mounted on the bottom of the frame base, and a winding turntable rotatably connected to the top of the frame base; The detection component includes a rigid cable wound on the winding turntable and a probe connected to one end of the rigid cable for acquiring drilling information. A pushing mechanism is fixed on the mobile frame, and a rigid cable passes through and clamps the pushing mechanism and moves with the pushing mechanism.

[0009] In some embodiments: the top of the frame base is provided with a turntable bracket that rotatably supports the winding turntable, the winding turntable is rotatably connected to the turntable bracket via a rotating shaft, and a bearing is connected between the turntable bracket and the rotating shaft.

[0010] In some embodiments: the mobile frame further includes a handle located at one end of the frame base, the handle extending upward at an angle away from the winding turntable, and the casters including fixed casters and swivel casters, the swivel casters being located at the end closer to the handle, and the fixed casters being located at the end away from the handle.

[0011] In some embodiments, the rigid cable includes conductors arranged from the inside out, a fiberglass reinforcement layer, and a polyethylene protective layer. The conductors include signal lines and power lines, both of which are connected to the probe.

[0012] In some embodiments, the probe includes a probe tube, and any one or more of the following located within the probe tube: a trajectory measurement module, a gas concentration sensor, a gas pressure measurement module, a camera, and a light source.

[0013] In some embodiments, the pushing mechanism includes a rotating wheel that clamps the rigid cable and rotates it, and an explosion-proof motor that drives the rotating wheel to rotate. The rotating wheel is equipped with a counter for detecting the number of rotations of the rotating wheel.

[0014] In some embodiments: the pushing mechanism includes a frame, the rotating wheel and the explosion-proof motor are both mounted on the frame, the frame is connected to the mobile frame, and the output shaft of the explosion-proof motor is connected to a drive sprocket; The rotating wheel is fixedly connected to a driven sprocket, and the driving sprocket and the driven sprocket are connected by a chain. The counter is a photoelectric counter, which is used to detect the number of rotations of the driven sprocket.

[0015] In some embodiments: the pushing mechanism is connected to a control box, the control box being provided with a motor control switch for controlling the speed and / or direction of the explosion-proof motor, and a probe control switch for controlling the probe operation.

[0016] In some embodiments: the frame includes a rotating end rotatably connected to the mobile frame, and an angle adjusting end for adjusting the pitch angle of the frame on the mobile frame, the angle adjusting end being slidably connected to the mobile frame and having a locking mechanism.

[0017] In some embodiments, the device further includes an intrinsically safe power supply and a control unit, and the probe is connected to the intrinsically safe power supply and the control unit respectively via the rigid cable.

[0018] The beneficial effects of the technical solution provided in this application include: This application provides a top hole rapid imaging trajectory detection device. The device includes a mobile frame comprising a frame base with casters mounted on the bottom and a winding turntable rotatably connected to the top; a detection component including a rigid cable wound on the winding turntable and a probe connected to one end of the rigid cable for acquiring drilling information; and a pushing mechanism fixed to the mobile frame, with the rigid cable passing through and clamping the pushing mechanism and moving with it.

[0019] Therefore, the top hole rapid imaging trajectory detection device of this application has a winding turntable on the mobile frame, and the detection component has a rigid cable wound on the winding turntable, and a probe connected to one end of the rigid cable for acquiring borehole information. After being released from the winding turntable, the rigid cable passes through and is clamped in the pushing mechanism and moves with the pushing mechanism. The pushing mechanism is used to wind or release the rigid cable, thereby pushing the rigid cable to drive the probe to continuously and uniformly acquire images of the borehole wall inside the borehole, thereby eliminating misjudgment or omission of key information caused by image blurring. Furthermore, it realizes automated pushing instead of manual pushing, reduces the number of pushing personnel, and improves the stability and continuity of pushing speed, increases the number of boreholes detected per day, and better meets the needs of large-scale detection and emergency scenarios in coal mines. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0022] Figure label: 11. Chassis base; 12. Casters; 13. Winding turntable; 14. Rigid cable; 15. Probe; 16. Rotary wheel; 17. Explosion-proof motor; 18. Frame; 19. Counter; 20. Intrinsically safe power supply; 21. Control box; 22. Hand handle; 23. Main unit. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] This application provides a top hole rapid imaging trajectory detection device, which can solve the problem of image blurring caused by the manual segment-by-segment pushing of the probe using stainless steel or carbon fiber push rods in related technologies.

[0025] See Figure 1 As shown, this application provides a top hole rapid imaging trajectory detection device, including: The mobile frame includes a frame base 11, with casters 12 mounted on the bottom of the frame base 11 and a winding turntable 13 rotatably connected to the top of the frame base 11. The mobile frame serves as a mobile support mechanism for the detection component and the pushing mechanism, making it easy to move to the designated work position during use.

[0026] The detection assembly includes a rigid cable 14 wound on a winding turntable 13. The rigid cable 14 is a continuous cable of a set length, with a certain axial support stiffness and radial bending deflection, so that it can both push the probe 15 axially and bend and wind around the winding turntable 13 radially. The probe 15 is connected to one end of the rigid cable 14 for obtaining drilling information.

[0027] A pushing mechanism is fixed on a mobile frame. A rigid cable 14 passes through and is clamped within the pushing mechanism and moves with it. The pushing mechanism is used to clamp and continuously drive the rigid cable 14 at a constant speed, thereby enabling the probe 15 to continuously and uniformly acquire borehole wall image information within the borehole.

[0028] The top hole rapid imaging trajectory detection device of this application embodiment has a winding turntable 13 on a mobile frame, and a detection component has a rigid cable 14 wound on the winding turntable 13, and a probe 15 connected to one end of the rigid cable 14 for acquiring drilling information. After being released from the winding turntable 13, the rigid cable 14 passes through and is clamped in the pushing mechanism and moves with the pushing mechanism.

[0029] The pushing mechanism is used to reel in or unwind the rigid cable 14, thereby driving the rigid cable 14 to move the probe 15 within the borehole at a uniform speed and continuously acquire images of the borehole wall, thus eliminating misjudgments or omissions of key information caused by image blurring. Furthermore, it automates the pushing process, replacing manual pushing, reducing the number of personnel required, while improving the stability and continuity of the pushing speed, increasing the number of boreholes inspected per day, and better meeting the needs of large-scale inspections and emergency scenarios in coal mines.

[0030] In some alternative embodiments: see Figure 1 As shown, this application embodiment provides a top hole rapid imaging trajectory detection device. The top of the frame base 11 of the top hole rapid imaging trajectory detection device is provided with a turntable bracket for rotating and supporting the winding turntable 13. The winding turntable 13 is rotatably connected to the turntable bracket through a rotating shaft, and a bearing is connected between the turntable bracket and the rotating shaft.

[0031] In this embodiment, a turntable bracket for rotating and supporting the winding turntable 13 is provided on the top of the frame base 11, allowing the winding turntable 13 to rotate freely on the turntable bracket, thereby facilitating the winding and unwinding of the rigid cable 14. The winding and unwinding actions of the rigid cable 14 can be freely controlled by a pushing mechanism, or a motor for driving the winding turntable 13 can be independently installed on the turntable bracket to achieve the winding and unwinding of the rigid cable 14.

[0032] In some alternative embodiments: see Figure 1 As shown, this application embodiment provides a top hole rapid imaging trajectory detection device. The mobile frame of the top hole rapid imaging trajectory detection device also includes a hand handle 22 located at one end of the frame base 11. The hand handle 22 extends upward at an angle away from the winding turntable 13.

[0033] The casters 12 include fixed casters and swivel casters. The swivel casters are located at the end closer to the handle 22, and the fixed casters are located at the end further away from the handle 22. The handle 22 is used to facilitate manual pushing of the mobile frame, thereby moving the device to the set work position. The swivel casters are located at the end closer to the handle 22, facilitating adjustment of their direction of movement during movement.

[0034] In some alternative embodiments: see Figure 1 As shown in the figure, this application embodiment provides a top hole rapid imaging trajectory detection device. The rigid cable 14 of the top hole rapid imaging trajectory detection device includes a conductor, a glass fiber reinforcement layer, and a polyethylene protective layer arranged from the inside out. The conductor includes a signal line and a power line, both of which are connected to the probe 15.

[0035] The signal line is used to transmit control and detection signals to the functional devices inside the probe 15, and the power line is used to supply power to the functional devices inside the probe 15. The glass fiber reinforcement layer has good rigidity and bending resistance, while also meeting the requirements for coiling and bending performance, allowing it to both axially push the probe 15 and radially bend and wind around the winding turntable 13. The polyethylene protective layer has a smooth and robust surface, can resist harsh environments, and improves the service life of the rigid cable 14.

[0036] In some alternative embodiments: see Figure 1 As shown, this application embodiment provides a top hole rapid imaging trajectory detection device. The probe 15 of the top hole rapid imaging trajectory detection device includes a probe tube, and any one or more of the following located inside the probe tube: a trajectory measurement module, a gas concentration sensor, a gas pressure measurement module, a camera, and a light source.

[0037] The trajectory measurement module is used to measure the azimuth and inclination of the borehole, the gas concentration sensor is used to measure the gas concentration inside the borehole, the air pressure measurement module is used to measure the negative pressure during gas extraction, the camera is used to acquire image information of the borehole wall, and the light source is used to illuminate the image information acquired by the camera.

[0038] In some alternative embodiments: see Figure 1 As shown, this application embodiment provides a top hole rapid imaging trajectory detection device. The pushing mechanism of the top hole rapid imaging trajectory detection device includes a rotating wheel 16 that clamps a rigid cable 14 and rotates. The rotating wheel 16 is provided with at least two sets to clamp the rigid cable 14, and an explosion-proof motor 17 that drives the rotating wheel 16 to rotate. The rotating wheel 16 is provided with a counter 19 for detecting the number of rotations of the rotating wheel 16.

[0039] The pushing mechanism also includes a frame 18, with a rotating wheel 16 and an explosion-proof motor 17 all mounted on the frame 18, which is connected to a mobile frame. The output shaft of the explosion-proof motor 17 is connected to a drive sprocket, and the rotating wheel 16 is fixedly connected to a driven sprocket. The drive sprocket and the driven sprocket are connected by a chain. The counter 19 is a photoelectric counter used to detect the number of rotations of the driven sprocket.

[0040] In this embodiment, an explosion-proof motor 17 is used as the power mechanism for continuously pushing the rigid cable 14. The explosion-proof motor 17 is connected to the rotating wheel 16 through a drive sprocket, a driven sprocket and a chain, thereby adjusting the spatial arrangement of the explosion-proof motor 17 and the rotating wheel 16, making the structure of the top hole rapid imaging trajectory detection device more stable and occupying less space.

[0041] The counter 19 can determine the number of rotations of the wheel 16 by detecting the number of rotations of the driven sprocket. Since the diameter of the wheel 16 is known, the length of the rigid cable 14 moved by the wheel 16 in one rotation can be obtained by calculating the circumference of the wheel 16.

[0042] In some alternative embodiments: see Figure 1 As shown, this application embodiment provides a top hole rapid imaging trajectory detection device. The pushing mechanism of the top hole rapid imaging trajectory detection device is connected to a control box 21. The control box 21 is provided with a motor control switch for controlling the speed and / or direction of the explosion-proof motor 17, and a probe control switch for controlling the operation of the probe 15.

[0043] The motor control switch is used to control the start and stop of the explosion-proof motor 17, as well as its speed and direction of rotation, thereby controlling the moving speed and direction of the probe 15 during operation. The probe control switch is used to control the working status of each functional module, thus enabling the measurement of borehole information according to actual needs.

[0044] It also includes an intrinsically safe power supply 20 and a control host 23. The probe 15 is connected to the intrinsically safe power supply 20 and the control host 23 respectively via a rigid cable 14. The counter 19 is connected to the control host 23 via a cable. After receiving the detection signal sent by the probe 15 and the depth signal sent by the counter 19, the control host 23 performs image recording, matching and stitching and other processing on the video signal. As the probe 15 moves forward, it automatically matches and stitches the image of the entire borehole wall into a complete planar unfolded image. At the same time, it displays the real-time monitoring image and the borehole trajectory projection image, realizing the functions of full borehole wall imaging, recording and trajectory measurement.

[0045] In some alternative embodiments: see Figure 1 As shown, this application embodiment provides a top hole rapid imaging trajectory detection device. The frame 18 of the top hole rapid imaging trajectory detection device includes a rotating end that is rotatably connected to a mobile frame, and an angle adjustment end that adjusts the pitch angle of the frame 18 on the mobile frame. The angle adjustment end is slidably connected to the mobile frame and is provided with a locking mechanism.

[0046] The angle of the adjustable frame 18 can be adjusted in pitch, allowing it to be adjusted according to the actual borehole opening direction. After the angle of the adjustable frame 18 is adjusted, it is locked by a locking mechanism to maintain the current angle. The pitch adjustment of the adjustable frame 18 facilitates the smooth insertion of the probe 15 and rigid cable 14 into the borehole, enabling flexible on-site operation and reducing the difficulty of borehole inspection.

[0047] Working principle This application provides a top hole rapid imaging trajectory detection device. The device includes a mobile frame comprising a frame base 11, casters 12 mounted on the bottom of the frame base 11, and a winding turntable 13 rotatably connected to the top of the frame base 11; a detection component including a rigid cable 14 wound on the winding turntable 13, and a probe 15 connected to one end of the rigid cable 14 for acquiring drilling information; and a pushing mechanism fixed to the mobile frame, with the rigid cable 14 passing through and clamping within the pushing mechanism and moving with it.

[0048] Therefore, the top hole rapid imaging trajectory detection device of this application has a winding turntable 13 on the mobile frame, and the detection component has a rigid cable 14 wound on the winding turntable 13, and a probe 15 connected to one end of the rigid cable 14 for acquiring borehole information. After being released from the winding turntable 13, the rigid cable 14 passes through and is clamped in the pushing mechanism and moves with the pushing mechanism. The pushing mechanism is used to wind or release the rigid cable 14, thereby pushing the rigid cable 14 to drive the probe 15 to uniformly and continuously acquire images of the borehole wall inside the borehole, thereby eliminating misjudgment or omission of key information caused by image blurring. Furthermore, it realizes the automated pushing of the probe 15 to replace manual pushing, reducing the number of pushing personnel, while improving the stability and continuity of the pushing speed, increasing the number of boreholes detected per day, and better meeting the needs of large-scale coal mine detection and emergency scenarios.

[0049] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0050] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A top hole quick imaging trajectory detection device, characterized in that, include: The mobile frame includes a frame base (11), with casters (12) mounted on the bottom of the frame base (11) and a winding turntable (13) rotatably connected to the top of the frame base (11). The detection component includes a rigid cable (14) wound on the winding turntable (13) and a probe (15) connected to one end of the rigid cable (14) for acquiring drilling information. The push mechanism is fixed on the mobile frame, and the rigid cable (14) passes through and clamps the push mechanism and moves with the push mechanism.

2. The top hole rapid imaging trajectory detection device as described in claim 1, characterized in that: The top of the frame base (11) is provided with a turntable bracket that rotatably supports the winding turntable (13). The winding turntable (13) is rotatably connected to the turntable bracket via a rotating shaft. A bearing is connected between the turntable bracket and the rotating shaft.

3. The top hole rapid imaging trajectory detection device as described in claim 2, characterized in that: The mobile frame also includes a hand handle (22) located at one end of the frame base (11), the hand handle (22) extending upward at an angle away from the winding turntable (13), the casters (12) include fixed casters and swivel casters, the swivel casters are located at the end close to the hand handle (22), and the fixed casters are located at the end away from the hand handle (22).

4. The top hole rapid imaging trajectory detection device as described in claim 1, characterized in that: The rigid cable (14) includes a conductor arranged from the inside out, a glass fiber reinforcement layer and a polyethylene protective layer. The conductor includes a signal line and a power line, both of which are connected to the probe (15).

5. The top hole rapid imaging trajectory detection device as described in claim 1, characterized in that: The probe (15) includes a probe tube, and any one or more of the following located inside the probe tube: a trajectory measurement module, a gas concentration sensor, a gas pressure measurement module, a camera, and a light source.

6. The top hole rapid imaging trajectory detection device as described in claim 1, characterized in that: The pushing mechanism includes a rotating wheel (16) that clamps the rigid cable (14) and rotates, and an explosion-proof motor (17) that drives the rotating wheel (16) to rotate. The rotating wheel (16) is provided with a counter (19) for detecting the number of rotations of the rotating wheel (16).

7. The top hole rapid imaging trajectory detection device as described in claim 6, characterized in that: The pushing mechanism includes a frame (18), the rotating wheel (16) and the explosion-proof motor (17) are both mounted on the frame (18), the frame (18) is connected to the mobile frame, and the output shaft of the explosion-proof motor (17) is connected to a drive sprocket; The rotating wheel (16) is fixedly connected to a driven sprocket. The driving sprocket and the driven sprocket are connected by a chain. The counter (19) is a photoelectric counter, which is used to detect the number of rotations of the driven sprocket.

8. A rapid imaging trajectory detection device for top holes as described in claim 6 or 7, characterized in that: The pushing mechanism is connected to a control box (21), which is equipped with a motor control switch for controlling the speed and / or direction of the explosion-proof motor (17) and a probe control switch for controlling the operation of the probe (15).

9. The top hole rapid imaging trajectory detection device as described in claim 7, characterized in that: The frame (18) includes a rotating end that is rotatably connected to the mobile frame, and an angle adjusting end that adjusts the pitch angle of the frame (18) on the mobile frame. The angle adjusting end is slidably connected to the mobile frame and is provided with a locking mechanism.

10. The top hole rapid imaging trajectory detection device as described in claim 1, characterized in that: It also includes an intrinsically safe power supply (20) and a control host (23), and the probe (15) is connected to the intrinsically safe power supply (20) and the control host (23) respectively via the rigid cable (14).

Images