Mine hidden danger investigation and inquiry method

Abstract

The invention discloses a mine hidden danger investigation and inquiry method, relates to the technical field of mine risk investigation, and aims to solve the problems that a detection sensor is exposed and is easy to collide and damage, the maintenance cost is high, the service life is short and the like and solve the problem that the gas concentration detection efficiency and the detection precision are influenced by a relatively large external environment. The mine hidden danger checking device comprises a mine hidden danger checking instrument, during checking, an air inlet pipe of a harmful gas detection assembly is pumped out, air blows fan blades to rotate and drives a fan base, the air inlet pipe and a threaded pipe of the harmful gas detection assembly to rotate together, and the rotating threaded pipe drives a camera assembly to stretch out of a shell through a gear transmission assembly; a gas sensor in the harmful gas detection assembly is used for detecting gas entering through a gas inlet pipe, and a camera shooting assembly is used for collecting images; and the background server carries out hidden danger investigation and analysis according to a gas detection result of the harmful gas detection assembly, a video image acquired by the camera assembly and distance and angle information measured by the laser ranging and angle detection assembly to obtain a hidden danger investigation result.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of mine equipment, and relates to mine risk hidden danger investigation, in particular to a mine hidden danger investigation and diagnosis method. BACKGROUND

[0002] At present, the situation of mine safety production is still severe, the main reason is that the technical force of mine enterprises is weak, the professional and technical personnel are insufficient, and in addition, the mine problem hidden danger is in constant change with the development of production, the general hidden danger is not discovered and eliminated in time, which will lead to the occurrence of production safety accidents, thereby causing life and property loss.

[0003] In order to discover and eliminate the hidden danger in time, and enhance the ability of mine enterprises to discover and eliminate the hidden danger, a portable mine hidden danger investigation instrument is developed, which can help the mine enterprises with weak technical force to discover and eliminate the hidden danger in time, and improve the level of mine essential safety production.

[0004] The invention patent application with the application number 202311780902.7 discloses an underground mine shaft and roadway inspection robot, the inspection robot is compact in structure, can move stably in the shaft and roadway according to needs, and can communicate with the shaft, the sensing unit is installed on the inspection robot, the sensing unit can perform real-time dynamic and tracking detection on the underground environment, especially through the laser ranging radar, the internal structure of different positions in the shaft and roadway can be tracked or monitored regularly, and the unstable position of the shaft and roadway is determined according to the monitoring result, so as to position the unstable area and make a prediction or warning on whether there is a collapse risk; in addition, the mobile robot can improve the data acquisition frequency and accuracy, without human intervention, and reduces the cost of shaft and roadway inspection; at the same time, the laser ranging radar also serves as an environmental perception sensor, which can cooperate with the self-navigation system built in the robot body to ensure the precise obstacle avoidance of the robot body, and can also calibrate the current position of the robot body, so as to ensure that the robot body can be located at the specified position required for detection, improve the safety of the robot body operation, and also improve the detection accuracy; it can be seen that the inspection robot of the present application is an improvement on the basis of the existing technology, which can help to understand the morphological changes of the internal structure of different positions in the shaft and roadway and perform precise positioning, and improve the safety of shaft and roadway construction.

[0005] Patent application number 202311619455.7 discloses a multi-functional safety alarm device and alarm method for coal mines based on TGIS. It includes several multi-functional safety alarm devices deployed over the longest distance in the main shaft and multiple branch shafts using 5G transmission. These multi-functional safety alarm devices are all connected via wired cables and simultaneously form a wireless communication network via 5G signals. All sensor data is transmitted simultaneously to the main and secondary servers of the mine safety monitoring center via wired and wireless networks, and then processed and displayed on the large screen of the monitoring center. The alarm method includes the following steps: Step 1: Data acquisition, using TGIS technology combined with various sensor devices to collect environmental data and safety parameters within the mine. Environmental data includes, but is not limited to, gas concentration, oxygen concentration, temperature, humidity, etc.; safety parameters include, but are not limited to, mine pressure, displacement, speed, etc.; Step 2: Data processing, processing and analyzing the collected data, using the spatial analysis and time series analysis functions of TGIS technology to extract characteristic information related to safety hazards; Step 3: Early warning module The system is structured as follows: Step 1: Model Construction. Based on historical data and safety accident cases, a mine safety early warning model is constructed using deep learning and artificial intelligence algorithms. This model can automatically issue warnings and predictions based on real-time data and feature information. Step 4: Safety Alarm. Based on the results of the early warning model, when a safety hazard is detected, a safety alarm system or device is triggered. This system or device can send alarm signals to relevant personnel through sound, light, etc. Step 5: Remote Control and Linkage. Managers can control and set the alarm through the remote control system. At the same time, the early warning system in the control center can be linked with other equipment, such as ventilation fans and water pumps, to achieve automated control. Step 6: Alarm Fault Diagnosis and Maintenance. When the alarm malfunctions or is abnormal, this method can automatically diagnose and repair the fault, or remind managers to carry out maintenance to ensure the stable operation of the alarm. Step 7: Historical Data Storage and Analysis. Historical data is stored and analyzed to provide predictions and assessments of future safety conditions. At the same time, by mining and analyzing historical data, potential safety hazards and development trends can be discovered.

[0006] Similar to the aforementioned patent applications, most existing mine alarms / inspection instruments / hazard detection instruments integrate various sensors directly onto the instrument, but the installation structure of these sensors is rarely disclosed. For example, in mine hazard detection, it is usually necessary to detect the concentration of various gases in the environment to determine if there are any safety hazards. Current technologies mostly involve placing the gas sensors externally on the instrument and directly exposing them to the air to detect the concentration of various gases. However, placing the gas sensors directly in the air for concentration detection results in low detection efficiency and accuracy, given the typically large external environment.

[0007] In addition to collecting data on the concentration of various gases in the environment, mine hazard inspections also require the use of video / photography equipment to acquire environmental images and collect information such as distance and length. Most existing instruments directly mount cameras, laser rangefinders, and angle sensors externally (similar to the setup of a mobile phone camera). However, due to the typically confined space, winding shafts, and uneven walls of mines, the camera's glass surface is easily scratched when using handheld instruments to acquire image information, laser rangefinders to acquire distance information, and angle sensors to acquire angle deflection information. Furthermore, the laser rangefinder and angle sensor are easily damaged by scraping against the shaft walls or colliding with foreign objects. Given the significant dust levels inside mines, it is crucial to conceal the camera, laser rangefinder, and angle sensor within the instrument and ensure proper dust protection. Summary of the Invention

[0008] The purpose of this invention is to address the problems of exposed monitoring and detection sensors being easily damaged by impacts in narrow, winding, humid, and dusty mine tunnels, resulting in high maintenance costs and short service life. It also addresses the issues of unstable detection results and low accuracy of externally mounted sensors for detecting toxic and harmful gases in mine tunnels due to airflow disturbances. The invention provides a method for identifying and diagnosing mine hazards by embedding a gas sensor inside an instrument, allowing ambient gas to be introduced for detection, and increasing the gas flow rate.

[0009] To achieve the above objectives, the present invention specifically adopts the following technical solution: A method for investigating and diagnosing potential hazards in mines, characterized by comprising a mine hazard investigation instrument, which includes a housing, on which are mounted a laser ranging and angle detection component, a camera component, and a hazardous gas detection component; the hazardous gas detection component includes an air inlet pipe that can rotate within the housing, an end limiting plate at the end of the air inlet pipe, a fan seat fitted on the air inlet pipe, multiple fan blades circumferentially distributed on the fan seat, and a keyway hole on the inner cylindrical surface of the fan seat; a guide key is provided on the air inlet pipe near the end limiting plate, and the guide key is inserted into the keyway hole; When using a mine hazard detection instrument for investigation and diagnosis, the following steps are included: Step 1: Turn on the power switch; Step 2: Pull out the air inlet pipe of the hazardous gas detection component. The wind blows the fan blades to rotate, which in turn drives the fan base, air inlet pipe, and threaded tube of the hazardous gas detection component to rotate together. The rotating threaded tube drives the camera component to extend out of the housing through the gear transmission component. The gas sensor inside the hazardous gas detection component detects the gas entering through the air inlet pipe, and the camera component acquires images. Step 3: The active sector gear rotates and drives the driven sector gear to rotate together, which in turn drives the upper and lower sealing plates to move up and down via the first and second rockers; Synchronously, the rotating active sector gear and driven sector gear drive the first linkage mechanism and the second linkage mechanism to rotate, and the component mounting plate gradually extends out of the housing. The laser rangefinder and angle detector mounted on the component mounting plate perform distance and angle detection. Step 4: The server conducts hazard investigation and analysis based on the gas detection results of the hazardous gas detection component, the video images collected by the camera component, and the distance and angle information measured by the laser ranging and angle detection component, and obtains the hazard investigation results. Step 5: After the data detection is completed, the drive sector gear is rotated in the opposite direction, and the component mounting plate is stored in the housing and covered by the upper and lower sealing plates. The intake pipe is retracted into the housing, and the fan mount is also retracted into the housing; Step 6, investigation complete.

[0010] Furthermore, after the investigation is completed, press the report generation button on the casing, and the server will generate an investigation report and transmit it to the mine hazard investigation instrument; If expert advice is needed, press the expert consultation button on the casing. The server will then send the data and report to the expert, who will then generate rectification suggestions based on the expert's opinion.

[0011] Furthermore, a threaded tube is fitted onto the intake pipe, allowing the intake pipe to move along the length of the threaded tube; the threaded tube is connected to the camera assembly via a gear transmission assembly, driving the camera assembly to move up and down; the threaded tube has a tube key through hole adapted to the guide key, and the guide key passes through the seat key through hole and is inserted into the tube key through hole.

[0012] Furthermore, an air inlet is provided on the back side of the air intake pipe corresponding to the fan mount.

[0013] Furthermore, the camera assembly includes an inner sleeve, a middle inner sleeve, a middle outer sleeve, and an outer sleeve arranged sequentially from the inside out. Each of the inner, middle, middle outer, and outer sleeves has a rack on its outer sidewall. Each of the middle, middle outer, and outer sleeves has a linkage gear on its inner sidewall. The linkage gear on the inner sidewall of the outer sleeve meshes with the rack on the adjacent outer sidewall of the inner sleeve. The rack on the outer sidewall of the outer sleeve meshes with the first gear in the gear transmission assembly. The last gear in the gear transmission assembly meshes with the external thread of the threaded tube of the hazardous gas detection assembly.

[0014] Furthermore, the laser ranging and angle detection component includes an upper sealing plate, a lower sealing plate, an active sector gear, and a driven sector gear. The upper sealing plate is hinged to the inner wall of the housing via a first rocker arm and a second rocker arm arranged in parallel. The lower sealing plate is also hinged to the inner wall of the housing via a first rocker arm and a second rocker arm arranged in parallel. Two sets of guide rails are arranged one above the other inside the placement cavity. The active sector gear and the driven sector gear are installed one above the other between the two sets of guide rails and mesh with each other. A component mounting plate that can move along the length of the guide rails is arranged between the two sets of guide rails. The two ends of the component mounting plate are hinged to the inner wall of the housing via a first linkage mechanism and a second linkage mechanism, respectively.

[0015] Furthermore, the first linkage mechanism, the driving sector gear, and the second rocker arm connected to the upper sealing plate are all hinged to the inner wall of the housing via the same hinge axis, and the second linkage mechanism, the driven sector gear, and the second rocker arm connected to the lower sealing plate are all hinged to the inner wall of the housing via the same hinge axis.

[0016] Furthermore, the front of the housing is equipped with read / write input buttons, a camera button, a programming button, an expert consultation button, a report generation button, and a display screen, while the side of the housing is equipped with a power switch.

[0017] The beneficial effects of this invention are as follows: 1. In this invention, the mine hazard detection instrument can collect various data in the mine in real time, and conduct hazard detection with the help of the back-end server analysis and judgment. It can automatically generate hazard detection reports, and make rectifications by combining expert opinions, reminding the mine of its strengths and weaknesses and strengthening its shortcomings, thus greatly improving the safety performance of mine operation. In addition, during the detection process, by storing the monitoring and detection sensors and camera components inside the housing and extending them only when in use, it effectively solves the problems of easy impact and damage to the monitoring and detection sensors in narrow, winding, humid and dusty mine roadways, high maintenance costs, and short service life. It also solves the problems of unstable detection results and low detection accuracy of toxic and harmful gases detected by external sensors due to the influence of airflow disturbance in the mine roadways. The effect is significant.

[0018] 2. In this invention, the laser ranging and angle detection component, the harmful gas detection component, and the camera component all adopt a retractable structure. Each component can be stored as a whole inside the instrument, which effectively avoids damage to the relevant components due to the narrowness of the mine shaft and the components installed inside the mine shaft during the investigation of potential mine hazards.

[0019] 3. In this invention, the air inlet pipe of the hazardous gas detection component can be pulled in and out, and after the air inlet pipe is pulled out, the wind can blow the fan base to rotate, thereby driving the camera component to rise through the threaded pipe and gear transmission component; realizing the linkage lifting and lowering of the hazardous gas detection component and the camera component, and improving the lifting and lowering efficiency of the hazardous gas detection component and the camera component.

[0020] 4. In this invention, the upper and lower sealing plates in the laser ranging and angle detection component can move in opposite directions and drive the component mounting plate to extend out of the housing for ranging, angle measurement and other processing; then the upper and lower sealing plates move towards each other, the component mounting plate is stored in the housing and covered by the upper and lower sealing plates, effectively shielding the component mounting plate and preventing damage to it; and throughout the process, the extension and retraction of the component mounting plate into the housing is highly efficient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the three components in this invention when they are retracted; Figure 3 This is a schematic diagram of the structure when the three components of this invention are extended; Figure 4 This is a schematic diagram of the structure of the harmful gas detection component in this invention; Figure 5 yes Figure 3 A schematic diagram of the structure at point I; Figure 6 This is a schematic diagram of the structure of the laser ranging and angle detection component in this invention; The attached figures are labeled as follows: 1. Read / write input button; 2. Photo button; 3. Programming button; 4. Expert consultation button; 5. Report generation button; 6. Housing; 7. Power switch; 8. Display screen; 9. Laser ranging and angle detection component; 10. Harmful gas detection component; 11. Gear transmission component; 12. Camera component; 9-1. First rocker arm; 9-2. Upper sealing plate; 9-3. Guide rail; 9-4. Second rocker arm; 9-5. First linkage mechanism; 9-6. Driving sector gear; 9-7. Component mounting plate; 9-8. Driven sector gear; 9-9. Second linkage mechanism; 9-10. Lower sealing plate; 10-1. End limiter; 10-2. Fan blade; 10-3. Air inlet pipe; 10-4. Threaded pipe; 10-5. Pipe key through hole; 10-6. Seat key through hole; 10-7. Fan seat; 10-8. Guide key; 10-9. Air inlet; 12-1. Inner sleeve; 12-2. Outer sleeve; 12-3. Outer sleeve; 12-4. Rack; 12-5. Linkage gear. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0023] Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0024] Example 1 This embodiment provides a method for investigating and diagnosing potential hazards in mines, which includes a mine hazard investigation instrument used to investigate potential hazards in mines. It includes a housing 6, on which are mounted a laser ranging and angle detection component 9 for ranging and angle detection, a camera component 12 for capturing real-time images or videos of the mine, and a hazardous gas detection component 10 for detecting the concentration of toxic and harmful gases in the mine.

[0025] The hazardous gas detection assembly 10 includes an intake pipe 10-3 for air intake, which can rotate and move within the housing 6. One end of the intake pipe 10-3 is connected to a gas sensor inside the housing 6, and the other end is a free end. Multiple guide keys 10-8 are provided on the outer cylindrical surface of the free end of the intake pipe 10-3, and these guide keys 10-8 are evenly arranged along the circumference of the intake pipe 10-3. An end limiting plate 10-1 is provided at the free end of the intake pipe 10-3. When the intake pipe 10-3 retracts inward, the end limiting plate 10-1 adheres tightly to the side of the housing 6 and prevents the intake pipe 10-3 from continuing to retract inward. A fan holder 10-7 is fitted onto the air intake pipe 10-3. Multiple fan blades 10-2 are circumferentially distributed on the outer surface of the fan holder 10-7. Furthermore, a keyway 10-6 is formed on the inner cylindrical surface of the fan holder 10-7. The keyway 10-6 corresponds to a guide key 10-8 on the air intake pipe 10-3, with the guide key 10-8 passing through the corresponding keyway 10-6. When the fan holder 10-7 is pulled out along with the air intake pipe 10-3, it rotates under the influence of external wind. The direction of rotation of the fan blades 10-2 on the fan holder 10-7 indicates the wind direction, facilitating the alignment of the air intake port of the air intake pipe 10-3 with the incoming air direction during subsequent gas sampling, thereby increasing the air intake volume and improving gas detection efficiency and effectiveness.

[0026] To increase the air intake volume, an air inlet 10-9 can be opened on the back side of the air intake pipe 10-3 corresponding to the fan seat 10-7 or the fan blade 10-2. When the air intake pipe 10-3 is blown and rotated by the wind, the gas after being reversed by the fan blade 10-2 can be poured into the air inlet 10-9, thereby greatly increasing the air intake volume during gas detection.

[0027] To enable the hazardous gas detection component 10 and the camera component 12 to work together, both extend out of the housing and retract into it, a threaded tube 10-4 is fitted onto the intake pipe 10-3. The intake pipe 10-3 can move along the length of the threaded tube 10-4. The threaded tube 10-4 has a tube key through hole 10-5 that matches the guide key 10-8. The guide key 10-8 passes through the seat key through hole 10-6 and is inserted into the tube key through hole 10-5, making it easy to pull out the intake pipe 10-3. The threaded tube 10-4 meshes with the rack in the camera assembly 12 via the gear transmission assembly 11. Specifically, the rack in the camera assembly 12 meshes with the first gear in the gear transmission assembly 11, and the last gear in the gear transmission assembly 11 meshes with the external thread of the threaded tube 10-4. Thus, by rotating the threaded tube 10-4 (i.e., under the action of wind, the fan seat 10-7, the air inlet pipe 10-3, and the threaded tube 10-4 rotate together), the camera assembly 12 is driven to rise and fall, thereby realizing the linkage of the camera assembly 12 and the harmful gas detection assembly 10 in extending and retracting the housing 6.

[0028] The camera assembly 12 includes an inner sleeve, a middle inner sleeve 12-1, a middle outer sleeve 12-2, and an outer sleeve 12-3, which are sequentially arranged from the inside out. A rack 12-4 is provided on the outer side wall of the inner sleeve, the middle inner sleeve 12-1, the middle outer sleeve 12-2, and the outer sleeve 12-3, and a linkage gear 12-5 is provided on the inner side wall of the middle inner sleeve 12-1, the middle outer sleeve 12-2, and the outer sleeve 12-3. In the two adjacent sleeves, the linkage gear 12-5 on the inner wall of the outer sleeve meshes with the rack 12-4 on the outer wall of the adjacent inner sleeve (that is, the rack on the outer wall of the inner sleeve meshes with the gear on the inner wall of the middle inner sleeve 12-1, the rack on the outer wall of the middle inner sleeve 12-1 meshes with the gear on the inner wall of the middle outer sleeve 12-2, and the rack on the outer wall of the middle outer sleeve 12-2 meshes with the gear on the inner wall of the outer sleeve 12-3). The rack 12-4 on the outer wall of the outer sleeve 12-3 meshes with the first gear in the gear transmission assembly 11, and the last gear in the gear transmission assembly 11 meshes with the external thread of the threaded tube 10-4 of the hazardous gas detection assembly 10.

[0029] The laser ranging and angle detection component 9 includes an upper sealing plate 9-2, a lower sealing plate 9-10, a driving sector gear 9-6, and a driven sector gear 9-8. The upper sealing plate 9-2 and the lower sealing plate 9-10 are symmetrically arranged on the housing 6, one above the other. The upper sealing plate 9-2 is hinged to the inner wall of the housing 6 through the parallel first rocker arm 9-1 and the second rocker arm 9-4 (that is, the upper sealing plate 9-2, the first rocker arm 9-1, and the second rocker arm 9-4 (as the active member, driven by the motor) form a planar four-bar linkage mechanism, and the upper sealing plate 9-2 will translate when a certain rocker arm is rotated). The lower sealing plate 9-10 is hinged to the inner wall of the housing 6 through the parallel first rocker arm 9-1 and the second rocker arm 9-4 (that is, the upper sealing plate 9-2 and the lower sealing plate 9-10 are connected by two independent sets of first rocker arms 9-1 and second rocker arms 9-4 respectively; and the lower sealing plate 9-10, the first rocker arm 9-1, and the second rocker arm 9-4 (as the active member, driven by the motor) form another planar four-bar linkage mechanism, and the lower sealing plate 9-10 will translate when a certain rocker arm is rotated). Two sets of guide rails 9-3 are arranged one above the other inside the placement cavity. The driving sector gear 9-6 and the driven sector gear 9-8 are installed one above the other between the two sets of guide rails 9-3 and mesh with each other. The driving sector gear 9-6 is driven by a motor. A component mounting plate 9-7 that can move along the length of the guide rails 9-3 is arranged between the two sets of guide rails 9-3. The two ends of the component mounting plate 9-7 are respectively hinged to the inner wall of the housing 6 through the first linkage mechanism 9-5 and the second linkage mechanism 9-9 (that is, the first linkage mechanism 9-5 and the second linkage mechanism 9-9 are both composed of two linkages hinged together). In use, first rotate the two sets of second rocker arms 9-4, which will drive the upper sealing plate 9-2 and the lower sealing plate 9-10 to move backwards through the two sets of planar four-bar linkages, exposing the holes of the corresponding component mounting plate 9-7 on the housing 6. Then drive the first linkage mechanism 9-5 and the second linkage mechanism 9-9 to rotate backwards, and the component mounting plate 9-7 will move outwards along the guide rail 9-3 and extend out of the housing 6.

[0030] To ensure linkage between the upper sealing plate 9-2, lower sealing plate 9-10, and component mounting plate 9-7, the first linkage mechanism 9-5, the driving sector gear 9-6, and the second rocker arm 9-4 connected to the upper sealing plate 9-2 are all hinged to the inner wall of the housing 6 via the same hinge axis, allowing them to rotate synchronously. Similarly, the second linkage mechanism 9-9, the driven sector gear 9-8, and the second rocker arm 9-4 connected to the lower sealing plate 9-10 are also hinged to the inner wall of the housing 6 via the same hinge axis, allowing them to rotate synchronously. In this structure, only the driving sector gear 9-6 is needed as the driving component, which is driven by a motor.

[0031] In addition, to enrich the functions of the mine hazard investigation instrument, the front of the housing 6 is equipped with a read / write input button 1, a shooting button 2, a programming button 3, an expert consultation button 4, a report generation button 5, and a display screen 8. The side of the housing 6 is also equipped with a power switch 7.

[0032] This mine hazard detection instrument can also be combined with a main control system to form a hazard detection system. The main control system may include modules such as a data transmission module, an analysis and diagnosis module, and a result feedback module. The mine hazard detection instrument mainly consists of a display screen, a switch, a camera probe, toxic and harmful gas sensors (including CO, SH2, and NO2 sensors), a laser ranging and angle sensor, a rechargeable battery pack, and the display screen. It is primarily used to detect toxic and harmful gases in mines, measure relevant geometric parameters, provide power, and display related information. The main control system is primarily used for inputting and storing mine physical and mechanical parameters, mine design parameters, mine safety regulations, relevant laws, regulations, local documents, and historical hazard records. It also stores mine expert information (including but not limited to expert names, contact information, titles, specializations, and areas of expertise), and compares and analyzes the current mine conditions (important parameters such as mine elements and toxic / hazardous gas composition) with mine design parameters, legal regulations, and document requirements. This identifies non-compliance, determines existing problems and hazards, and provides corresponding rectification suggestions. For complex issues, an expert consultation button allows users to consult relevant experts for corresponding rectification advice. After acquiring relevant data through the mine hazard detection instrument, the main control system can conduct hazard investigation and analysis based on relevant mine standards and documents, generating related reports. Those skilled in the art can directly select applicable reports based on their knowledge in the field, without requiring creative effort.

[0033] When using the aforementioned mine hazard detection instrument for investigation and diagnosis, the following steps are included: Step 1, turn on the power switch 7; Step 2: Pull out the air inlet pipe 10-3 of the hazardous gas detection component 10. The wind blows the fan blade 10-2 to rotate, which in turn drives the fan base 10-7, the air inlet pipe 10-3, and the threaded pipe 10-4 of the hazardous gas detection component 10 to rotate together. The rotating threaded pipe 10-4 drives the camera component 12 to extend out of the housing 6 through the gear transmission component 11. The gas sensor in the hazardous gas detection component 10 detects the gas entering through the air inlet pipe 10-3, and the camera component 12 acquires images. Step 3: The active sector gear 9-6 rotates and drives the driven sector gear 9-8 to rotate together, which in turn drives the upper sealing plate 9-2 and the lower sealing plate 9-10 to move up and down through the first rocker arm 9-1 and the second rocker arm 9-4. Synchronously, the rotating active sector gear 9-6 and driven sector gear 9-8 drive the first linkage mechanism 9-5 and the second linkage mechanism 9-9 to rotate, and the component mounting plate 9-7 gradually extends out of the housing 6. The laser rangefinder and angle detector mounted on the component mounting plate 9-7 perform distance and angle detection. Step 4: The server performs hazard investigation and analysis based on the gas detection results of the hazardous gas detection component 10, the video images collected by the camera component 12, and the distance and angle information measured by the laser ranging and angle detection component 9, and obtains the hazard investigation results. Step 5: After the data detection is completed, rotate the drive sector gear 9-6 in the reverse direction. The component mounting plate 9-7 is stored in the housing 6 and covered by the upper sealing plate 9-2 and the lower sealing plate 9-10. The intake pipe 10-3 is stored inside the housing 6, and the fan seat 10-7 is also stored inside the housing 6. Step 6, investigation complete.

[0034] After the investigation is completed, press the report generation button 5 on the housing 6, and the server will generate an investigation report and transmit it to the mine hidden danger investigation instrument; If expert opinions are needed, press the expert consultation button 4 on the casing 6. The server will send the data and report to the expert, who will then generate rectification opinions based on the expert's comments.

Claims

1. A method for investigating and diagnosing potential hazards in mines, characterized in that, The equipment includes a mine hazard detection device, which includes a housing (6), a laser ranging and angle detection component (9), a camera component (12), and a hazardous gas detection component (10) on the housing (6); the hazardous gas detection component (10) includes an air inlet pipe (10-3) that can rotate inside the housing (6), an end limiting plate (10-1) at the end of the air inlet pipe (10-3), a fan seat (10-7) sleeved on the air inlet pipe (10-3), multiple fan blades (10-2) distributed circumferentially on the fan seat (10-7), and a key hole (10-6) for the seat body is opened on the inner cylindrical surface of the fan seat (10-7); a guide key (10-8) is provided on the air inlet pipe (10-3) near the end limiting plate (10-1), and the guide key (10-8) is inserted into the key hole (10-6); When using this mine hazard detection instrument for hazard identification, the specific steps are as follows: Step 1, turn on the power switch (7); Step 2: Pull out the air inlet pipe (10-3) of the hazardous gas detection component (10). The wind blows the fan blade (10-2) to rotate, and drives the fan base (10-7), air inlet pipe (10-3), and threaded pipe (10-4) of the hazardous gas detection component (10) to rotate together. The rotating threaded pipe (10-4) drives the camera component (12) to extend out of the housing (6) through the gear transmission component (11). The gas sensor in the hazardous gas detection component (10) detects the gas entering through the air inlet pipe (10-3), and the camera component (12) acquires images. Step 3: The driving sector gear (9-6) rotates and drives the driven sector gear (9-8) to rotate together. The first rocker arm (9-1) and the second rocker arm (9-4) drive the upper sealing plate (9-2) and the lower sealing plate (9-10) to move up and down. Synchronously, the rotating active sector gear (9-6) and driven sector gear (9-8) drive the first linkage mechanism (9-5) and the second linkage mechanism (9-9) to rotate, and the component mounting plate (9-7) gradually extends out of the housing (6). The laser rangefinder and angle detector mounted on the component mounting plate (9-7) perform distance and angle detection. Step 4: The server conducts hazard investigation and analysis based on the gas detection results of the hazardous gas detection component (10), the video images collected by the camera component (12), and the distance and angle information measured by the laser ranging and angle detection component (9), and obtains the hazard investigation results. Step 5: After the data detection is completed, the active sector gear (9-6) is rotated in the opposite direction, and the component mounting plate (9-7) is stored in the housing (6) and covered by the upper sealing plate (9-2) and the lower sealing plate (9-10). The intake pipe (10-3) is stored inside the housing (6), and the fan seat (10-7) is also stored inside the housing (6); Step 6, investigation complete.

2. The method for investigating and diagnosing potential hazards in mines as described in claim 1, characterized in that: After the investigation is completed, press the report generation button (5) on the housing (6), and the server will generate an investigation report and transmit it to the mine hidden danger investigation instrument; If expert opinions are needed, press the expert consultation button (4) on the housing (6) again. The server will send the data and report to the expert, and the expert will generate rectification opinions based on the expert opinions.

3. The method for investigating and diagnosing potential hazards in mines as described in claim 1, characterized in that: In the mine hazard investigation instrument, the air inlet pipe (10-3) is also fitted with a threaded pipe (10-4), and the air inlet pipe (10-3) can move along the length of the threaded pipe (10-4); the threaded pipe (10-4) is connected to the camera component (12) through the gear transmission assembly (11) and drives the camera component (12) to move up and down; the threaded pipe (10-4) is provided with a tube key through hole (10-5) that matches the guide key (10-8), and the guide key (10-8) passes through the seat key through hole (10-6) and is inserted into the tube key through hole (10-5).

4. The method for investigating and diagnosing potential hazards in mines as described in claim 1, characterized in that: In the mine hazard detection instrument, an air inlet (10-9) is provided on the back side of the air inlet pipe (10-3) corresponding to the fan seat (10-7).

5. The method for investigating and diagnosing potential hazards in mines as described in claim 1, characterized in that: In the mine hazard detection instrument, the camera component (12) includes an inner sleeve, a middle inner sleeve (12-1), a middle outer sleeve (12-2), and an outer sleeve (12-3) arranged sequentially from the inside out. A rack (12-4) is provided on the outer wall of each of the inner sleeve, middle inner sleeve (12-1), middle outer sleeve (12-2), and outer sleeve (12-3). The middle inner sleeve (12-1), middle outer sleeve (12-2), and outer sleeve (12-3)... All inner walls are provided with linkage gears (12-5). The linkage gear (12-5) on the inner wall of the outer sleeve meshes with the rack (12-4) on the outer wall of the inner sleeve. The rack (12-4) on the outer wall of the outer sleeve (12-3) meshes with the first gear in the gear transmission assembly (11). The last gear of the gear transmission assembly (11) meshes with the external thread of the threaded tube (10-4) of the harmful gas detection assembly (10).

6. The method for investigating and diagnosing potential hazards in mines as described in claim 1, characterized in that: In the mine hazard detection instrument, the laser ranging and angle detection component (9) includes an upper sealing plate (9-2), a lower sealing plate (9-10), a driving sector gear (9-6), and a driven sector gear (9-8). The upper sealing plate (9-2) is hinged to the inner wall of the housing (6) through the parallel first rocker arm (9-1) and the second rocker arm (9-4). The lower sealing plate (9-10) is hinged to the inner wall of the housing (6) through the parallel first rocker arm (9-1) and the second rocker arm (9-4). The upper part of the cavity is provided with two sets of guide rails (9-3) arranged one above the other. The driving sector gear (9-6) and the driven sector gear (9-8) are installed between the two sets of guide rails (9-3) and mesh with each other. A component mounting plate (9-7) that can move along the length of the guide rail (9-3) is provided between the two sets of guide rails (9-3). The two ends of the component mounting plate (9-7) are respectively hinged to the inner wall of the housing (6) through the first linkage mechanism (9-5) and the second linkage mechanism (9-9).

7. The method for investigating and diagnosing potential hazards in mines as described in claim 6, characterized in that: In the mine hazard detection instrument, the first linkage mechanism (9-5), the driving sector gear (9-6), and the second rocker arm (9-4) connected to the upper sealing plate (9-2) are all hinged to the inner wall of the housing (6) through the same hinge shaft. The second linkage mechanism (9-9), the driven sector gear (9-8), and the second rocker arm (9-4) connected to the lower sealing plate (9-10) are all hinged to the inner wall of the housing (6) through the same hinge shaft.

8. The method for investigating and diagnosing potential hazards in mines as described in claim 1, characterized in that: In the mine hazard investigation instrument, the front of the housing (6) is also equipped with a read / write input button (1), a shooting button (2), a programming button (3), an expert consultation button (4), a report generation button (5), and a display screen (8), and the side of the housing (6) is also equipped with a power switch (7).

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