Mine ventilation safety monitoring device and regulation method thereof

Abstract

The present application relates to the technical field of mine safety monitoring, and discloses a mine ventilation safety monitoring device and a regulation and control method thereof, the device comprising a support arm installed on a roadway wall and a box body arranged at one end of the support arm, a driving motor being arranged in the box body, an output end of the driving motor being connected with a probe through a linkage mechanism, and the driving motor being capable of driving the probe to adjust the angle so as to realize the detection of air parameters in different directions in the roadway. The gear set and the multi-stage linkage structure arranged in the box body enable the output power of the driving motor to be stably transmitted to the probe position, thereby ensuring the continuity and reliability of the angle adjustment of the probe. Meanwhile, a cleaning cover is arranged outside the box body, the probe can be automatically cleaned during movement, and a dustproof structure is arranged on the box body to prevent dust from entering the inside. The device can adapt to the complex ventilation environment of the mine roadway, improve the coverage range of the ventilation monitoring and the reliability of the monitoring data, and has good practicability.

Description

Technical Field

[0001] This invention belongs to the field of mine safety monitoring technology, specifically relating to a mine ventilation safety monitoring device and its control method. Background Technology

[0002] Mine ventilation systems are crucial infrastructure for ensuring safe underground operations. The airflow within the tunnels directly affects the dilution of harmful gases, control of dust dispersion, and the personal safety of workers. To monitor ventilation conditions in real time, ventilation safety monitoring devices are typically installed on the tunnel walls or support structures, using air detection probes to detect parameters such as wind speed and gas concentration.

[0003] Most existing mine ventilation safety monitoring devices adopt a fixed installation structure, with probes typically arranged at a single angle or in a fixed direction within the roadway. In practical use, this type of structure makes it difficult to adjust the probe's detection direction according to changes in roadway cross-section, differences in airflow direction, or local ventilation conditions. This results in monitoring data that only reflects the air state in a localized or single direction, failing to comprehensively characterize the true ventilation situation within the roadway. When the airflow direction changes or complex conditions such as turbulence or backflow occur within the roadway, the fixed-direction detection method is prone to monitoring blind spots, affecting the accuracy of ventilation safety assessments.

[0004] Furthermore, the environment in mine tunnels is typically characterized by high dust content, high humidity, and frequent vibration, making monitoring devices susceptible to environmental influences during long-term operation. If the probe installation structure lacks stability, or if the probe angle cannot be adjusted during operation, the reliability of monitoring can be reduced due to limited installation location and a single detection direction. Simultaneously, prolonged exposure of the probe to a dusty environment in a fixed position can cause coal dust impurities to adhere to its surface, further affecting detection sensitivity and increasing maintenance frequency. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide a mine ventilation safety monitoring device and its control method. It can be stably installed on the wall of the mine roadway and the detection angle of the probe can be adjusted during operation, so as to improve the monitoring coverage of the air state in different directions in the roadway and the reliability of the monitoring data.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A mine ventilation safety monitoring device and its control method include a support arm installed on the roadway wall, with a box provided at one end of the support arm; The housing contains a drive motor, the output end of which is equipped with a linkage mechanism, and one end of the linkage mechanism is equipped with a probe. The probe is used to detect air inside the tunnel; The drive motor can adjust the angle of the probe through a linkage mechanism.

[0007] Furthermore, a gear set is provided inside the housing, the gear set including a driving tooth and a driven tooth rotatably disposed inside the housing, and the driving tooth and the driven tooth mesh with each other.

[0008] Furthermore, the linkage mechanism includes a first linkage seat and a second linkage seat; The first linkage seat is engaged with the drive motor, and the second linkage seat is mounted on the drive gear; The first linkage is connected to the first reversing column; The second linkage seat is movably connected to the second reversing column; One end of the second reversing column is connected to a second connector, and one end of the first reversing column is rotatably connected to a first connector. A rotatable connection exists between the first and second joints; The drive motor drives the first linkage seat to rotate, and under the linkage of the first reversing column and the second linkage seat, the second linkage seat drives the gear set to rotate inside the housing.

[0009] Furthermore, both the drive gear and the housing are equipped with mounting bases. Both the second linkage seat and the first linkage seat are fixed by mounting brackets.

[0010] Furthermore, a probe seat is provided at one end of the second linkage seat, and a threaded post is provided at one end of the probe seat, on which a probe is installed.

[0011] Furthermore, the housing is provided with a movable window, inside which a dustproof component is installed, and soft rubber strips are symmetrically arranged inside the dustproof component.

[0012] Furthermore, a cleaning cover is provided on the outside of the box body. The cleaning cover includes an arc-shaped plate, with brush bristles inside the arc-shaped plate. A second connecting plate connected to the box body is provided on one side of the arc-shaped plate, and a through groove is provided at the bottom of the arc-shaped plate. When the probe moves inside the cleaning shroud, the bristles clean the surface of the probe.

[0013] Furthermore, a gearbox is provided at the output end of the drive motor, and a base is provided at the bottom of the gearbox.

[0014] Furthermore, the support arm includes a support rod, both ends of which are provided with first connecting plates, and one side of the support rod is provided with a reinforcing plate.

[0015] A method for controlling the mine ventilation safety monitoring device includes the following steps: S1. Fix the support arm to the wall of the mine roadway so that the box is suspended in the roadway at the predetermined monitoring position; S2. The drive motor is powered on and runs. After the output speed is adjusted by the gearbox, the power is transmitted to the first linkage. S3. During the rotation of the first linkage seat, the second linkage seat rotates synchronously through the linkage of the first reversing column, the first joint, the second joint and the second reversing column. S4. The second linkage seat drives the drive teeth to rotate, and through the meshing of the drive teeth and the driven teeth, the gear set undergoes angular transmission within the gearbox. S5. Under the action of the gear set rotation, the probe seat and the probe on it are driven to adjust the angle, so that the probe can detect the air parameters in different directions in the roadway. S6. During the process of adjusting or returning the probe angle, the probe passes through the inside of the cleaning cover, and the brush bristles are used to clean the dust adhering to the probe surface. S7. The dustproof components and soft rubber strips installed inside the movable window form a dustproof seal between the probe and the box, preventing dust from entering the box and completing the control process of mine ventilation safety monitoring.

[0016] Compared with the prior art, the beneficial effects of the present invention are: Existing mine ventilation safety monitoring devices mostly adopt fixed detection structures with probes installed in a single direction, making it difficult to adapt to changes in airflow direction and cross-sectional structure differences within the roadway. This can easily lead to monitoring blind spots under complex ventilation conditions, resulting in collected air parameters that cannot fully reflect the true ventilation status within the roadway. This solution, by installing a drive motor inside the housing and coordinating with a linkage mechanism, allows the probe to adjust its angle during operation, thereby enabling the detection of air parameters in different directions within the roadway and improving the coverage and data validity of ventilation monitoring.

[0017] To address the challenges of limited installation space and high long-term operational stability requirements in mine roadways, existing monitoring devices are susceptible to vibration and environmental factors after wall mounting, affecting monitoring accuracy and lifespan. This solution addresses these issues by implementing a support arm structure and utilizing support rods and reinforcing plates to form a stable cantilever support, ensuring reliable fixation of the housing to the roadway wall. Furthermore, by incorporating a gearbox and base structure at the drive motor output, the impact of vibration during operation is reduced, enhancing the overall operational stability of the device.

[0018] To address the problem of discontinuous angle adjustment caused by unstable rotational transmission during long-term use of fixed probes, existing technologies have simple drive structures but insufficient transmission reliability. This solution sets up a gear set inside the housing and uses a linkage seat, reversing column, and connector to form a multi-stage linkage transmission structure, enabling the output power of the drive motor to be stably and continuously transmitted to the probe position, thereby ensuring the smoothness and controllability of the probe angle adjustment process.

[0019] To address the issues of high dust content in mine roadways and the tendency for coal dust to adhere to the probe surface, affecting detection sensitivity, existing monitoring devices typically rely on manual cleaning, resulting in frequent maintenance. This solution addresses these issues by installing a cleaning cover on the outside of the housing and incorporating a brush structure inside the cover. This allows the probe to automatically clean its surface during angle adjustment or retraction. Simultaneously, the dustproof components and soft rubber strips within the movable window create an effective dustproof seal inside the housing, reducing the impact of dust on the internal transmission structure and detection accuracy, and improving the long-term operational reliability of the device in complex underground environments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the support arm of the present invention; Figure 4 This is a schematic diagram of the cleaning cover of the present invention; Figure 5 This is a schematic diagram of the gear set of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the gear set of the present invention. Figure 2 ; Figure 7 This is a schematic diagram of the structure of the dustproof component of the present invention; Figure 8 This is a schematic diagram of the linkage mechanism of the present invention; Figure 9 This is a schematic diagram of the drive motor of the present invention.

[0021] The attached diagram lists the components represented by each number as follows: 1. Box body; 11. Movable window; 2. Support arm; 21. Support rod; 211. Reinforcing plate; 22. First connecting plate; 3. Cleaning cover; 31. Arc-shaped plate; 311. Brush bristles; 312. Through groove; 32. Second connecting plate; 4. Dustproof parts; 41. Soft rubber strips; 5. Gear set; 51. Drive gear; 511. Mounting base; 52. Driven gear; 6. Drive motor; 61. Gearbox; 611. Base; 7. Linkage mechanism; 71. First linkage seat; 72. Second linkage seat; 73. First reversing column; 731. First connector; 74. Second reversing column; 741. Second connector; 75. Probe seat; 751. Threaded column; 8. Probe. Detailed Implementation

[0022] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0023] Example 1: See Figure 1-9 A mine ventilation safety monitoring device and its control method include a support arm 2 installed on the roadway wall, and a box 1 is provided at one end of the support arm 2; Due to the complex ventilation environment in mine roadways and the frequent changes in roadway cross-section and airflow direction, existing fixed monitoring devices are difficult to meet the monitoring needs of air parameters in different directions after installation, and are prone to forming monitoring blind spots. In order to improve the structural stability and monitoring coverage of the monitoring device when installed on the roadway wall, the box 1 is suspended in the roadway by the support arm 2. The support arm 2 provides a stable installation foundation for the device, so that the box 1 is in a suitable monitoring height and position, thereby providing installation conditions for subsequent angle adjustment of the probe 8 and air detection. 1 has a drive motor 6 inside, the output end of the drive motor 6 is equipped with a linkage mechanism 7, and one end of the linkage mechanism 7 is equipped with a probe 8. Since a fixed detection direction is difficult to adapt to the variable airflow conditions in the tunnel, a drive motor 6 is installed inside the housing 1, and the output end of the drive motor 6 is connected to the linkage mechanism 7 to form a power connection, so that the rotational power output by the drive motor 6 can be transmitted to the position of the probe 8, providing a power source for the angle adjustment of the probe 8. 8. Used to detect air in tunnels; The probe 8 is placed in the airflow area of ​​the tunnel to collect air parameters and reflect the ventilation status of the tunnel. 6 can adjust the angle of probe 8 by means of linkage mechanism 7.

[0024] By cooperating with the drive motor 6 and the linkage mechanism 7, the probe 8 can rotate around the set axis at multiple angles, thereby overcoming the problem of single detection direction in the existing technology and realizing the monitoring of air conditions in different directions in the roadway.

[0025] See Figure 5-6 The housing 1 is equipped with a gear set 5, which includes a drive gear 51 and a driven gear 52 rotatably disposed in the housing 1, and the drive gear 51 and the driven gear 52 mesh with each other.

[0026] Since the output of the drive motor 6 is a single rotation direction, in order to realize the conversion of rotation direction and the stability of angle transmission during the angle adjustment of the probe 8, a gear set 5 is set in the housing 1 so that the drive gear 51 drives the driven gear 52 to rotate synchronously during the rotation, thereby forming a stable and continuous angle transmission structure inside the housing 1, providing a reliable transmission basis for the angle change of the probe 8.

[0027] See Figure 8-9 The linkage mechanism 7 includes a first linkage seat 71 and a second linkage seat 72; Since a reliable power transmission path needs to be established between the drive motor 6 and the gear set 5, an intermediate linkage structure is formed between the output end of the drive motor 6 and the gear set 5 by setting the first linkage seat 71 and the second linkage seat 72. The first linkage seat 71 is engaged with the drive motor 6, and the second linkage seat 72 is mounted on the drive gear 51; The first linkage seat 71 is used to receive the rotational power of the drive motor 6, and the second linkage seat 72 is used to transmit the rotational power to the drive gear 51. The first linkage seat 71 is movably connected to the first reversing column 73; The rotation direction and power transition are achieved through the first reversing column 73; The second linkage seat 72 is movably connected to the second reversing column 74; The second reversing column 74 is used to form a linkage with the first reversing column 73; One end of the second reversing column 74 is connected to the second connector 741, and one end of the first reversing column 73 is rotatably connected to the first connector 731. The first connector 731 and the second connector 741 are rotatably connected. The first connector 731 and the second connector 741 are rotatably connected; The rotatable connection structure between the first connector 731 and the second connector 741 enables flexible power transmission between different rotation axes. 6 drives the first linkage seat 71 to rotate, and under the linkage of the first reversing column 73 and the second linkage seat 72, the second linkage seat 72 drives the gear set 5 to rotate inside the housing 1.

[0028] Through the structural cooperation of the above-mentioned linkage mechanism 7, the power of the drive motor 6 can be stably transmitted to the gear set 5, so as to realize the continuous rotation of the probe 8 during the angle adjustment process.

[0029] See Figure 6-9 Both the drive gear 51 and the housing 1 are equipped with mounting bases 511. To improve the installation stability of the gear set 5 and the linkage mechanism 7 in the housing 1, a mounting base 511 is provided inside the drive gear 51 and the housing 1 to keep the relevant components in a stable position during operation. Both the second linkage seat 72 and the first linkage seat 71 are fixed by the mounting seat 511.

[0030] The first linkage seat 71 and the second linkage seat 72 are fixed by the mounting base 511 to prevent transmission deviation caused by vibration during long-term operation.

[0031] See Figure 8-9 The second linkage seat 72 is provided with a probe seat 75 at one end, and a threaded post 751 is provided at one end of the probe seat 75, and a probe 8 is installed on the threaded post 751.

[0032] Since the probe 8 needs to remain reliably installed during angle adjustment, a probe seat 75 is set at one end of the second linkage seat 72, and a threaded connection is formed between the probe 8 and the threaded post 751, so that the probe 8 can rotate synchronously with the second linkage seat 72, and at the same time, it is convenient to install and replace the probe 8.

[0033] See Figure 6-7 The housing 1 has an openable window 11, and a dustproof component 4 is installed inside the openable window 11. Soft rubber strips 41 are symmetrically arranged inside the dustproof component 4.

[0034] Due to the high dust content in the mine roadway, in order to prevent dust from entering the housing 1 and affecting the normal operation of the drive motor 6, gear set 5 and linkage mechanism 7, a movable window 11 is set on the housing 1, and a dustproof component 4 is set inside the movable window 11. The soft rubber strip 41 is used to form a tight seal on the surface of the probe 8, thereby achieving the functions of dust prevention and buffering.

[0035] See Figure 4 The outer side of the box 1 is provided with a cleaning cover 3. The cleaning cover 3 includes an arc plate 31. The inside of the arc plate 31 is provided with bristles 311. A second connecting plate 32 connected to the box 1 is provided on one side of the arc plate 31, and a through groove 312 is provided at the bottom of the arc plate 31. Since the probe 8 is prone to coal dust and impurities during long-term use, a cleaning cover 3 is set on the outside of the housing 1, and bristles 311 are set inside the arc plate 31 so that the probe 8 can contact the bristles 311 during movement. When the probe 8 moves into the cleaning cover 3, the bristles 311 can clean the surface of the probe 8.

[0036] The channel 312 provides a discharge channel for the detached dust, preventing impurities from accumulating inside the cleaning hood 3, thereby ensuring the detection sensitivity of the probe 8.

[0037] See Figure 8-9The output end of the drive motor 6 is provided with a gearbox 61, and the bottom of the gearbox 61 is provided with a base 611.

[0038] Since the drive motor 6 needs to output stable speed and torque during operation, a gearbox 61 is set at the output end of the drive motor 6 to adjust the speed, and the gearbox 61 is supported and installed using the base 611, thereby reducing the impact of operating vibration on monitoring accuracy.

[0039] See Figure 3 The support arm 2 includes a support rod 21, both ends of which are provided with a first connecting plate 22, and a reinforcing plate 211 is provided on one side of the support rod 21.

[0040] The support arm 2 is fixed to the roadway wall by the first connecting plate 22, and the support rod 21 is reinforced by the reinforcing plate 211, so that the support arm 2 forms a stable cantilever support structure, thereby ensuring the reliability of the installation of the box 1 in the roadway.

[0041] A method for controlling the mine ventilation safety monitoring device includes the following steps: S1. Fix the support arm 2 on the wall of the mine roadway so that the box 1 is suspended in the roadway at the predetermined monitoring position; The stable installation of the housing 1 is achieved by using the support arm 2; S2. The drive motor 6 is powered on and runs. After the output speed is adjusted by the gearbox 61, the power is transmitted to the first linkage seat 71. S3. During the rotation of the first linkage seat 71, the second linkage seat 72 rotates synchronously through the linkage of the first reversing column 73, the first connector 731, the second connector 741 and the second reversing column 74. S4. The second linkage seat 72 drives the drive tooth 51 to rotate, and through the meshing of the drive tooth 51 and the driven tooth 52, the gear set 5 undergoes angular transmission within the housing 1. S5. Under the action of the gear set 5 rotation, the probe seat 75 and the probe 8 on it are driven to adjust the angle, so that the probe 8 can detect the air parameters in different directions in the roadway. S6. During the process of adjusting or returning the angle of the probe 8, the probe 8 passes through the inside of the cleaning cover 3, and the dust adhering to the surface of the probe 8 is cleaned by the brush bristles 311. S7. The dustproof component 4 and soft rubber strip 41 installed in the movable window 11 form a dustproof seal between the probe 8 and the box 1, preventing dust from entering the box 1 and completing the control process of mine ventilation safety monitoring.

[0042] Example 2: See Figures 1-9This embodiment addresses the problem mentioned in the background technology that "fixed probes have a single monitoring direction and are prone to forming monitoring blind spots," and provides a mine ventilation safety monitoring device that can achieve multi-angle adjustment of the probe.

[0043] In this embodiment, the device includes a support arm 2, a housing 1, a drive motor 6, a linkage mechanism 7, and a probe 8. The support arm 2 is made of Q235 structural steel and is fixed to the wall of the mine roadway by a first connecting plate 22. The support rod 21 and the reinforcing plate 211 are welded into an integral structure to ensure the installation stability of the housing 1. The housing 1 is made of 3mm thick steel plate welded together, and is equipped with a DC geared drive motor 6 with a rated power of 60W. The output end of the drive motor 6 is connected to the probe 8 through the linkage mechanism 7. The linkage mechanism 7 includes a first linkage seat 71, a second linkage seat 72, a first reversing column 73, a second reversing column 74, a first connector 731, and a second connector 741, wherein the first linkage seat 71 is fixed to the output shaft of the drive motor 6 by a key connection. After the drive motor 6 is powered on, it drives the first linkage seat 71 to rotate. The first reversing column 73 rotates synchronously with the first linkage seat 71 and transmits power to the second reversing column 74 through the rotational connection of the first connector 731 and the second connector 741. This drives the second linkage seat 72 to rotate, so that the probe 8 can adjust its angle around the preset axis, thereby realizing continuous detection of air parameters in different directions in the roadway.

[0044] Compared with traditional fixed-installation mine ventilation monitoring devices, where the probes are only arranged in a single direction, the monitoring data fluctuates significantly when there is airflow deflection or local backflow in the roadway, and cannot accurately reflect the overall ventilation status. In contrast, this embodiment achieves multi-angle adjustment of the probe 8 through the cooperation of the drive motor 6 and the linkage mechanism 7, which significantly expands the coverage of monitoring data and verifies the feasibility of the technical solution.

[0045] Example 3: See Figure 3 , Figure 8 , Figure 9 This embodiment addresses the problem of "large vibrations in mine roadways and insufficient stability of equipment operation" mentioned in the background art, and provides an installation and driving scheme with higher structural stability.

[0046] In this embodiment, the support rod 21 in the support arm 2 adopts a rectangular steel tube structure, and the reinforcing plate 211 is a steel plate with a thickness of 5mm welded to one side of the support rod 21 to improve the overall bending resistance. The output end of the drive motor 6 is equipped with a gearbox 61. The gearbox 61 adopts a planetary reduction structure with a reduction ratio of 1:20. The bottom of the gearbox 61 is fixedly mounted on the inner bottom plate of the housing 1 via a base 611. The base 611 is made of cast aluminum material. The vibration generated during the operation of the drive motor 6 is buffered by the gearbox 61 and dispersed to the housing 1 via the base 611, thereby reducing the impact of vibration on the angle adjustment accuracy of the probe 8 and ensuring that the linkage mechanism 7 maintains a stable working state during long-term operation.

[0047] Compared with the direct-drive structure without gearbox 61 and base 611, the probe angle deviates during continuous operation testing; after adopting the structure of this embodiment, the drive motor 6 runs smoothly and the angle adjustment accuracy of the probe 8 remains stable, proving that the structural design has good engineering feasibility.

[0048] Example 4: See Figures 5-9 This embodiment addresses the problem of "unstable transmission during probe angle adjustment" mentioned in the background art, and provides a structural solution with higher transmission reliability.

[0049] In this embodiment, a gear set 5 is provided inside the housing 1. The gear set 5 includes a driving gear 51 and a driven gear 52. Both the driving gear 51 and the driven gear 52 are made of 20CrMnTi alloy steel and have undergone carburizing and quenching treatment. The drive gear 51 is rotatably mounted on the inner wall of the housing 1 via the mounting base 511, and the second linkage seat 72 is fixedly mounted on the drive gear 51. The drive motor 6 drives the drive gear 51 to rotate through the linkage mechanism 7. The drive gear 51 meshes with the driven gear 52 to realize angle transmission amplification, making the angle adjustment process of the probe 8 more stable and continuous.

[0050] Compared with the direct linkage structure without gear set 5, there is a jamming phenomenon during the rotation of the probe; after adopting the gear set 5 structure in this embodiment, the transmission process is continuous and smooth, verifying the reliability of the solution under actual working conditions.

[0051] Example 5: See Figure 4 , Figure 6 , Figure 7 This embodiment addresses the problem of "dust adhesion affecting probe sensitivity and high maintenance frequency" mentioned in the background art, and provides a structural solution with automatic cleaning and dust prevention functions.

[0052] In this embodiment, a cleaning cover 3 is provided on the outside of the box 1. The cleaning cover 3 is fixedly connected to the box 1 through the second connecting plate 32. Nylon bristles 311 are provided on the inner side of the arc plate 31. A through groove 312 is provided at the bottom of the arc plate 31. The housing 1 is provided with a movable window 11, and a dustproof component 4 is provided inside the movable window 11. The dustproof component 4 is made of rubber material and has soft rubber strips 41 symmetrically arranged inside. During the process of adjusting or returning the angle of probe 8, probe 8 passes through the inside of cleaning cover 3. The brush bristles 311 brush away the coal dust attached to the surface of probe 8, while the soft rubber strip 41 forms a tight seal on probe 8 to prevent dust from entering the inside of housing 1.

[0053] Compared with the monitoring device without the cleaning cover 3 and dustproof component 4, the probe surface accumulates a lot of dust after long-term operation; after adopting the structure of this embodiment, the probe 8 surface remains clean and the stability of the monitoring data is significantly improved, proving that the technical solution has practical application value.

[0054] Working principle of the invention: When in use, the support arm 2 is fixedly installed on the wall of the mine roadway through the first connecting plate 22 at its end. The support rod 21 forms a stable cantilever support structure under the reinforcement of the reinforcing plate 211, so that the box 1 can be stably suspended in the designated monitoring position in the roadway, thereby ensuring the installation reliability and use safety of the monitoring device in the complex underground environment.

[0055] The housing 1 is equipped with a drive motor 6. After being powered on, the drive motor 6 drives the gearbox 61 through its output end. The gearbox 61 reduces the output speed of the drive motor 6 and amplifies the torque. It is stably installed by the base 611 at its bottom to avoid vibration during motor operation from affecting the monitoring accuracy.

[0056] The output power of the drive motor 6 is transmitted through the first linkage seat 71. The first linkage seat 71 rotates under the drive of the motor, and the first commutator 73, which is movably inserted into the first linkage seat 71, rotates synchronously. One end of the first commutator 73 forms a rotatable connection structure with the second connector 741 on the second commutator 74 through the first connector 731, so that the power can be flexibly transmitted between different directions.

[0057] The second reversing column 74 is connected to the second linkage seat 72, which is mounted on the drive gear 51. Under the linkage action of the first linkage seat 71 and the first reversing column 73, the second linkage seat 72 drives the drive gear 51 to rotate. The drive gear 51 and the driven gear 52 mesh with each other, so that the gear set 5 forms a stable and continuous transmission process inside the housing 1, realizing the amplification of angle transmission and direction conversion.

[0058] As the gear set 5 rotates, the probe seat 75 installed at one end of the second linkage seat 72 changes angle accordingly. The threaded post 751 on the probe seat 75 is used to connect and fix the probe 8 with the threaded connection, so that the probe 8 can be adjusted around the set axis at multiple angles under the control of the drive motor 6, so as to realize the detection of air parameters in different directions in the roadway.

[0059] The side of the housing 1 has an movable window 11, and the movable window 11 is equipped with a dustproof component 4. The soft rubber strips 41 arranged symmetrically inside the dustproof component 4 form a flexible fit on the surface of the probe 8 during the extension or retraction process, thereby playing a role in dustproof sealing and vibration damping, and preventing underground dust from entering the housing 1 and affecting the normal operation of the gear set 5 and the drive motor 6.

[0060] During the periodic angle adjustment or return process of probe 8, when probe 8 moves to the area where cleaning cover 3 is located, the bristles 311 on the arc plate 31 inside cleaning cover 3 brush off the coal dust or impurities attached to probe 8 by contacting the probe 8 surface; the through groove 312 provided at the bottom of arc plate 31 provides a discharge path for the fallen dust, preventing impurities from accumulating inside cleaning cover 3, thereby ensuring the detection sensitivity and long-term stability of probe 8.

[0061] Through the coordinated operation of the above structures, the present invention realizes the automatic angle adjustment, dust protection and self-cleaning functions of the probe 8 in the mine roadway, enabling the monitoring device to operate stably for a long time in the complex and dusty underground environment, and improving the reliability and accuracy of mine ventilation safety monitoring.

[0062] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A mine ventilation safety monitoring device and its control method, characterized in that: Includes a support arm (2) installed on the tunnel wall, with a box (1) provided at one end of the support arm (2); The housing (1) is equipped with a drive motor (6), the output end of the drive motor (6) is equipped with a linkage mechanism (7), and one end of the linkage mechanism (7) is equipped with a probe (8). The probe (8) is used to detect the air in the tunnel; The drive motor (6) can drive the probe (8) to adjust the angle through the linkage mechanism (7).

2. The mine ventilation safety monitoring device and its control method according to claim 1, characterized in that: The housing (1) is provided with a gear set (5), which includes a drive tooth (51) and a driven tooth (52) rotatably disposed in the housing (1), and the drive tooth (51) and the driven tooth (52) mesh with each other.

3. The mine ventilation safety monitoring device and its control method according to claim 1, characterized in that: The linkage mechanism (7) includes a first linkage seat (71) and a second linkage seat (72); The first linkage seat (71) is engaged with the drive motor (6), and the second linkage seat (72) is mounted on the drive gear (51); The first linkage seat (71) is movably connected to the first reversing column (73); The second linkage seat (72) is movably connected to the second reversing column (74); One end of the second reversing column (74) is connected to the second connector (741), and one end of the first reversing column (73) is rotatably connected to the first connector (731). The first connector (731) and the second connector (741) are rotatably connected; The drive motor (6) drives the first linkage seat (71) to rotate, and under the linkage of the first reversing column (73) and the second linkage seat (72), the second linkage seat (72) drives the gear set (5) to rotate inside the housing (1).

4. The mine ventilation safety monitoring device and its control method according to claim 3, characterized in that: Both the drive gear (51) and the housing (1) are provided with mounting bases (511). Both the second linkage seat (72) and the first linkage seat (71) are fixed by the mounting seat (511).

5. The mine ventilation safety monitoring device and its control method according to claim 4, characterized in that: The second linkage seat (72) is provided with a probe seat (75) at one end, and a threaded post (751) is provided at one end of the probe seat (75), and a probe (8) is installed on the threaded post (751).

6. The mine ventilation safety monitoring device and its control method according to claim 1, characterized in that: The box (1) is provided with an movable window (11), and a dustproof component (4) is provided inside the movable window (11). Soft rubber strips (41) are symmetrically arranged inside the dustproof component (4).

7. The mine ventilation safety monitoring device and its control method according to claim 6, characterized in that: The outer side of the box (1) is provided with a cleaning cover (3), the cleaning cover (3) includes an arc plate (31), the inside of the arc plate (31) is provided with bristles (311), a second connecting plate (32) connected to the box (1) is provided on one side of the arc plate (31), and a through groove (312) is provided at the bottom of the arc plate (31). When the probe (8) moves into the cleaning shroud (3), the bristles (311) clean the surface of the probe (8).

8. The mine ventilation safety monitoring device and its control method according to claim 1, characterized in that: The output end of the drive motor (6) is provided with a gearbox (61), and the bottom of the gearbox (61) is provided with a base (611).

9. The mine ventilation safety monitoring device and its control method according to claim 1, characterized in that: The support arm (2) includes a support rod (21), both ends of which are provided with a first connecting plate (22), and a reinforcing plate (211) is provided on one side of the support rod (21).

10. A method for controlling a mine ventilation safety monitoring device, characterized in that, Includes the following steps: S1. Fix the support arm (2) on the wall of the mine roadway so that the box (1) is suspended in the roadway at the predetermined monitoring position; S2. The drive motor (6) is powered on and runs. After the output speed is adjusted by the gearbox (61), the power is transmitted to the first linkage seat (71). S3. During the rotation of the first linkage seat (71), the second linkage seat (72) rotates synchronously through the linkage of the first reversing column (73), the first connector (731), the second connector (741) and the second reversing column (74). S4. The second linkage seat (72) drives the drive tooth (51) to rotate, and through the meshing of the drive tooth (51) and the driven tooth (52), the gear set (5) undergoes angular transmission in the housing (1). S5. Under the rotation of the gear set (5), the probe seat (75) and the probe (8) on it are driven to adjust the angle so that the probe (8) can detect the air parameters in different directions in the roadway. S6. During the process of adjusting or returning the angle of the probe (8), the probe (8) passes through the inside of the cleaning cover (3) and the dust adhering to the surface of the probe (8) is cleaned by the brush (311). S7. The dustproof parts (4) and soft rubber strips (41) installed in the active window (11) form a dustproof seal between the probe (8) and the box (1) to prevent dust from entering the box (1) and complete the control process of mine ventilation safety monitoring.

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