A high-definition peeping device for coal mine roof stratum drilling detection

Abstract

The utility model discloses a high definition peeping device for coal mine roof stratum drilling detection belongs to the mining engineering technical field, aims at solving the problem of low imaging definition of existing device, and the easy sticking damage of probe. It includes connecting rod body, anti -sticking channel steel, glass steel cover, high resolution probe, LED lamp strip and data transmission line, and the glass steel cover bottom end is connected the connecting rod body through the connecting screw, and the high resolution probe is contained in the glass steel cover, and the LED lamp strip is arranged in the probe top and the four around of cover inboard, and the anti -sticking channel steel is established on the connecting rod body, and the data transmission line one end is connected the probe. The device can high definition light supplementing imaging, avoids the sticking and damage of probe, and stably transmits data, improves the reliability of detection, and provides support for the roof stability evaluation and coal mine safety.

Description

Technical Field

[0001] This utility model belongs to the field of mining engineering technology, and in particular relates to a high-definition viewing device for drilling and detecting rock strata in the roof of coal mines. Background Technology

[0002] In underground coal mining, the stability of the roof strata directly affects the safety of underground operations. Roof collapses and other accidents can cause severe casualties and property damage. Therefore, accurately detecting the structural characteristics (such as bedding distribution, fracture development, fault structure, and the location of karst caves) and integrity of the roof strata through technical means is a core step in evaluating roof stability and developing safe support plans. Borehole imaging technology, due to its ability to directly obtain images of the internal rock strata, has become the mainstream detection method in this field.

[0003] Currently, borehole probes are widely used in the industry for top rock formation imaging detection. Domestic and foreign scholars have also conducted research and achieved certain results in areas such as probe optimization and dust protection. For example, improving the dust protection effect by improving the probe shell material and optimizing the probe lens parameters to enhance the basic imaging capability have provided technical support for the detection of the integrity of the underground rock formation structure. However, existing technologies still have significant shortcomings, making it difficult to meet the actual needs of high-definition and stable detection. On the one hand, coal mine boreholes are enclosed environments with extremely weak light. The supplementary lighting structures of traditional probes are mostly designed in a single direction or with low intensity, which easily leads to uneven illumination and insufficient light, resulting in blurred images that cannot clearly present the fine structure of the rock strata, seriously affecting the reliability of roof stability evaluation. On the other hand, existing technologies mostly focus on single-function optimization (such as only solving dust prevention or basic imaging problems), and do not adequately consider the coordinated design of "supplementary lighting-protection-anti-jamming-data transmission" required for high-definition imaging. For example, although some probes have a certain dust prevention capability, they lack a dedicated protective structure for high-definition lenses, making them susceptible to contamination or damage from underground dust, rock debris, or impacts. Furthermore, when the probe is retracted, it is prone to jamming due to uneven borehole walls and debris accumulation, further reducing detection efficiency and data integrity.

[0004] In summary, existing coal mine roof strata drilling detection technologies still have room for improvement in terms of high-definition imaging capabilities, environmental adaptability, and functional synergy. There is an urgent need for a detection device that can comprehensively solve problems such as low imaging clarity, easy probe damage, and retraction jamming, in order to improve the accuracy and stability of roof strata detection and provide more reliable technical support for safe coal mine production. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model proposes a high-definition viewing device for drilling and detecting rock strata in the roof of coal mines.

[0006] To achieve the above objectives, this utility model provides a high-definition viewing device for drilling and detecting rock strata in coal mine roofs, comprising:

[0007] Connecting rod body;

[0008] Anti-jamming steel, wherein the anti-jamming steel is disposed on the connecting rod body;

[0009] A fiberglass cover, the bottom end of which is connected to the connecting rod body via a connecting thread, and the top and sides of the fiberglass cover are transparent;

[0010] A high-resolution probe, housed inside the fiberglass enclosure, is used to acquire structural images of the roof strata in coal mines;

[0011] LED light strips are arranged on the inner wall of the fiberglass cover and are located on the top and around the high-resolution probe, respectively.

[0012] A data transmission line, one end of which is electrically connected to the high-resolution probe, is used to transmit image data acquired by the high-resolution probe.

[0013] Optionally, the LED light strips are arranged in a dense pattern inside the fiberglass cover, with the top light strip and the surrounding light strips forming a ring-shaped light source.

[0014] Optionally, a gap of 5-10mm is reserved between the inner wall of the fiberglass cover and the outer wall of the high-resolution probe.

[0015] Optionally, the number of anti-jamming channel steels is 2-4, and they are evenly distributed along the circumferential direction of the connecting rod.

[0016] Optionally, the data transmission line is wrapped with a double-layer shielding structure, which includes an inner copper mesh shielding layer and an outer aluminum foil shielding layer, and is wrapped with a wear-resistant insulating sleeve.

[0017] Optionally, the high-resolution probe has a resolution of not less than 1080P and a lens viewing angle range of 90°-120°.

[0018] Optionally, it also includes an adaptive lighting adjustment module, which includes several miniature photosensitive sensors, a miniature constant current driving chip, and a miniature control module. The miniature photosensitive sensors are distributed around the circumference of the high-resolution probe to collect ambient light intensity data and transmit it to the miniature control module. The LED light strip is electrically connected to the miniature control module through the miniature constant current driving chip. The miniature control module outputs a signal based on the light intensity data to control the miniature constant current driving chip to adjust the operating current of the LED light strip, thereby achieving adaptive brightness adjustment.

[0019] Optionally, the data transmission line is equipped with mine signal surge arresters at both ends to resist electromagnetic interference.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects:

[0021] The top and sides are made of transparent fiberglass, which not only protects the high-resolution probe from dust and debris to ensure stable operation, but also provides unobstructed view. The LED light strips on the top and sides of the probe can effectively supplement the light and greatly improve the image clarity. The anti-jamming channel steel is set on the connecting rod to prevent the probe from getting stuck when it is retracted. The connecting rod also provides stable support for the whole device. The data transmission line can reliably transmit the image data collected by the probe. The whole device achieves high-definition, stable and anti-jamming drilling detection of coal mine roof rock strata. Attached Figure Description

[0022] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0023] Figure 1 This is a schematic diagram of the high-definition viewing device for drilling and detecting rock strata in the roof of a coal mine, according to this utility model.

[0024] In the diagram: 1. Connecting rod; 2. Anti-jamming steel; 3. Connecting thread; 5. Fiberglass cover; 6. High-resolution probe; 7. LED light strip; 8. Data transmission line. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Reference Figure 1 As shown, this embodiment provides a high-definition viewing device for drilling and detecting rock strata in coal mine roofs, comprising:

[0028] Connecting rod 1;

[0029] Anti-jamming steel 2 is provided on the connecting rod body 1;

[0030] The fiberglass cover 5 has its bottom end connected to the connecting rod 1 via a connecting thread 3, and the top and sides of the fiberglass cover 5 are transparent.

[0031] High-resolution probe 6, housed inside fiberglass cover 5, is used to acquire structural images of the roof strata in coal mines.

[0032] LED light strip 7 is arranged on the inner wall of the fiberglass cover 5 and is located on the top and around the high-resolution probe 6 respectively.

[0033] Data transmission line 8, one end of which is electrically connected to high-resolution probe 6, is used to transmit image data acquired by high-resolution probe 6.

[0034] The top and sides are made of transparent fiberglass cover 5, which not only protects the high-resolution probe 6 from dust and debris to ensure stable operation, but also provides unobstructed view. The LED light strips on the top and sides of the probe can effectively supplement the light and greatly improve the image clarity. The anti-jamming channel steel 2 is set on the connecting rod 1 to prevent the probe from getting stuck when it is retracted. The connecting rod 1 also provides stable support for the whole device. The data transmission line 8 can reliably transmit the image data collected by the probe. The whole device achieves high-definition, stable and anti-jamming drilling detection effect in coal mine roof rock strata.

[0035] In some alternative implementations, the LED light strips 7 are arranged in a dense pattern inside the fiberglass cover 5, and the top light strip and the surrounding light strips form a ring light source.

[0036] The dense arrangement ensures the output intensity of the light source and avoids dark areas in the imaging caused by weak local light. The surrounding layout can cover the detection field of view from the top and all sides of the probe, eliminating blind spots. Combined with the transparency of the fiberglass cover 5, the high-resolution probe 6 can obtain uniform and sufficient illumination when acquiring rock layer images, regardless of the detection direction. This effectively avoids blurring of rock layer details caused by uneven light, further improving the clarity and detail of the imaging. This provides more reliable image data support for accurately judging the structural characteristics and integrity of the roof rock layer and for subsequent evaluation of roof stability.

[0037] In some alternative implementations, a gap of 5-10 mm is provided between the inner wall of the fiberglass cover 5 and the outer wall of the high-resolution probe 6.

[0038] This gap serves as a buffer space, preventing direct collisions between the probe and the fiberglass cover 5 due to vibrations during underground exploration or retraction. This protects the lens and internal components of the high-resolution probe 6 from damage, ensuring imaging stability. Simultaneously, the gap accommodates the thermal expansion and contraction differences between the fiberglass cover 5 and the probe caused by temperature variations in the underground environment, preventing deformation due to expansion and compression, maintaining the integrity of the transparent structure of the fiberglass cover 5 and the accuracy of the probe's acquisition angle. Furthermore, any dust that accidentally enters the cover can be temporarily stored within the gap, reducing the probability of direct adhesion to the probe lens and indirectly ensuring image clarity. This provides structural adaptability support for stable, high-definition detection of coal mine roof rock strata.

[0039] In some alternative implementations, the number of anti-jamming channel steels 2 is 2-4, and they are evenly distributed along the circumference of the connecting rod body 1.

[0040] The setting of 2-4 units avoids both insufficient anti-jamming coverage due to too few units and excessive units that increase the overall size of the device and the frictional resistance between the device and the borehole wall. The evenly distributed layout along the connecting rod 1 allows the anti-jamming channel steel 2 to form a comprehensive protective support around the device, blocking or pushing away protruding rock blocks and accumulated debris in the borehole from different directions. This prevents the probe and fiberglass cover 5 from being stuck due to localized force during retraction or advancement, while ensuring that the device maintains a stable central position in the borehole, reducing direct collisions with the borehole wall. This not only improves the smoothness of the detection operation but also indirectly protects the internal high-resolution probe 6 and fiberglass cover 5, providing structural support for the efficient detection of coal mine roof strata.

[0041] In some alternative implementations, the data transmission line 8 is wrapped with a double-layer shielding structure, which includes an inner copper mesh shielding layer and an outer aluminum foil shielding layer, and is wrapped with a wear-resistant insulating sleeve.

[0042] The double-layer shielding structure forms a highly efficient anti-interference barrier. The inner copper mesh shielding layer is highly effective at shielding against low-frequency electromagnetic interference, such as signal interference from other electrical equipment underground. The outer aluminum foil shielding layer effectively blocks high-frequency electromagnetic interference. Together, they ensure that the rock strata image data acquired by the high-resolution probe 6 is transmitted without interruption or distortion, guaranteeing the accuracy of the detection data. Meanwhile, the outer wear-resistant insulating sleeve can resist mechanical damage to the transmission line caused by rock friction and debris scraping underground, preventing the core from being exposed. On the other hand, it can isolate the underground moisture, dust, and potential leakage risks, extending the service life of the data transmission line 8 and ensuring the safety of equipment operation and personnel operation, providing reliable support for stable data transmission of drilling exploration of coal mine roof strata.

[0043] In some optional implementations, the high-resolution probe 6 has a resolution of not less than 1080P and a lens viewing angle range of 90°-120°.

[0044] With a high-definition resolution of at least 1080P, it can clearly capture the fine structural features of rock strata such as fissures, bedding, and karst caves, avoiding misjudgments of rock strata integrity caused by blurred images due to traditional low-resolution probes. This provides accurate image detail support for roof stability evaluation. The 90°-120° lens field of view can cover a large detection area inside the borehole, reducing the problem of low detection efficiency caused by frequent probe position adjustments due to a narrow field of view. It can also avoid image edge distortion caused by an excessively large field of view, ensuring the authenticity and integrity of rock strata images within the detection field of view, and further guaranteeing the reliability of coal mine roof rock strata structure detection results and the efficiency of detection operations.

[0045] In some optional implementations, an adaptive lighting adjustment module is also included. The adaptive lighting adjustment module includes several miniature photosensitive sensors, a miniature constant current driving chip, and a miniature control module. The several miniature photosensitive sensors are distributed around the circumference of the high-resolution probe 6 to collect ambient light intensity data and transmit it to the miniature control module. The LED light strip 7 is electrically connected to the miniature constant current driving chip and the miniature control module outputs a signal according to the light intensity data to control the miniature constant current driving chip to adjust the operating current of the LED light strip 7, thereby achieving adaptive brightness adjustment.

[0046] The circumferentially distributed miniature photosensitive sensors can comprehensively collect real-time light intensity data from all directions around the probe, avoiding misjudgments caused by local light anomalies from a single sensor. The miniature control module dynamically adjusts the operating current of the LED light strips based on the light intensity data through a miniature constant current drive chip. This allows the LED light strips to automatically increase brightness in dimly lit areas to eliminate dark areas in the imaging, and automatically decrease brightness in areas with excessive light, such as reflective areas, to avoid image overexposure. The system can maintain optimal illumination throughout the detection process without manual intervention, ensuring that the high-resolution probe 6 can always acquire clear and realistic rock layer images. It also reduces unnecessary energy consumption of the LED light strips, extends their battery life and service life, and further improves the adaptability and reliability of the device in complex downhole environments.

[0047] In some optional implementations, both ends of the data transmission line 8 are equipped with mine signal surge arresters to resist electromagnetic interference.

[0048] The mine-use signal surge arrester can specifically suppress various electromagnetic interference signals from entering the high-resolution probe 6 or equipment acquisition end through the data transmission line 8, avoiding interference that could cause interruption, distortion, or noise in image data transmission, thus ensuring the integrity and accuracy of rock structure image data. At the same time, the "mine-use" characteristic ensures that the surge arrester is suitable for the special environment of underground mines, which is humid, dusty, and has potential explosion-proof requirements. It can stably play an anti-interference role without being easily damaged, further improving the reliability of data transmission of the entire device under complex working conditions in coal mines, and providing continuous and reliable image data support for subsequent roof rock stability evaluation.

[0049] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0050] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A high-definition viewing device for drilling and detecting rock strata in coal mine roofs, characterized in that, include: Connecting rod (1); Anti-jamming steel (2), the anti-jamming steel (2) is provided on the connecting rod body (1); A fiberglass cover (5) is provided, the bottom end of which is connected to the connecting rod (1) via a connecting thread (3), and the top and sides of the fiberglass cover (5) are transparent. A high-resolution probe (6) is housed inside the fiberglass cover (5) and is used to acquire structural images of the roof strata (4) of the coal mine. LED light strip (7), the LED light strip (7) is arranged on the inner side wall of the fiberglass cover (5), and is located on the top and around the high-resolution probe (6); A data transmission line (8) is provided, one end of which is electrically connected to the high-resolution probe (6) for transmitting image data acquired by the high-resolution probe (6).

2. The high-definition viewing device for drilling and detecting rock strata in coal mine roofs according to claim 1, characterized in that, The LED light strips (7) are arranged in a dense pattern inside the fiberglass cover (5), and the top light strip and the surrounding light strips form a ring light source.

3. The high-definition viewing device for drilling and detecting rock strata in coal mine roofs according to claim 1, characterized in that, A gap of 5-10mm is reserved between the inner wall of the fiberglass cover (5) and the outer wall of the high-resolution probe (6).

4. The high-definition viewing device for drilling and detecting rock strata in coal mine roofs according to claim 1, characterized in that, The number of anti-jamming groove steels (2) is 2-4, and they are evenly distributed along the circumference of the connecting rod (1).

5. The high-definition viewing device for drilling and detecting rock strata in coal mine roofs according to claim 1, characterized in that, The data transmission line (8) is wrapped with a double-layer shielding structure, which includes an inner copper mesh shielding layer and an outer aluminum foil shielding layer. The double-layer shielding structure is wrapped with a wear-resistant insulating sleeve.

6. The high-definition viewing device for drilling and detecting rock strata in coal mine roofs according to claim 1, characterized in that, The high-resolution probe (6) has a resolution of not less than 1080P and a lens viewing angle range of 90°-120°.

7. The high-definition viewing device for drilling and detecting rock strata in coal mine roofs according to claim 1, characterized in that, It also includes an adaptive lighting adjustment module, which includes several miniature photosensitive sensors, a miniature constant current driving chip, and a miniature control module; the several miniature photosensitive sensors are distributed around the circumference of the high-resolution probe (6) to collect ambient light intensity data and transmit it to the miniature control module; the LED light strip (7) is electrically connected to the miniature control module through the miniature constant current driving chip, and the miniature control module outputs a signal according to the light intensity data to control the miniature constant current driving chip to adjust the working current of the LED light strip (7) to achieve adaptive brightness adjustment.

8. The high-definition viewing device for drilling and detecting rock strata in coal mine roofs according to claim 1, characterized in that, The data transmission line (8) is equipped with mine signal surge arresters at both ends to resist electromagnetic interference.

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