A WiFi-based remote monitoring device for mine ventilation equipment

Abstract

This invention discloses a WiFi-based remote monitoring device for mine ventilation equipment, relating to the field of mine ventilation equipment operation status monitoring technology. It includes an explosion-proof box with a waist-shaped groove on its top and a wireless transmission module fixedly installed on its inner wall. The device also includes a mounting base fixedly extending through the explosion-proof box on the side furthest from the wireless transmission module, with two symmetrical supports on its surface; and a camera slidably mounted on the inner wall of the mounting base. The camera captures real-time images of the ventilation equipment and transmits the captured data to the wireless transmission module. An automatic closure explosion-proof plate automatically seals the opening on the outside of the mounting base, and magnetic attraction ensures the reliability of the seal, further enhancing the protection of the internal camera.

Description

Technical Field

[0001] This invention belongs to the field of mine ventilation equipment operation status monitoring technology, specifically relating to a WiFi-based remote monitoring device for mine ventilation equipment. Background Technology

[0002] The WiFi-based remote monitoring device for mine ventilation equipment uses WiFi wireless communication as the core of data transmission to realize online monitoring of the operating status of mine ventilation equipment, replacing manual on-site inspections and effectively improving the safety of mine ventilation system monitoring.

[0003] Patent publication number CN211603878U relates to a remote monitoring device for mine ventilation equipment, including a front-end sensor, a remote data acquisition unit, and a monitoring backend. The front-end sensor is installed on the mine ventilation equipment. The remote data acquisition unit is connected to the front-end sensor via a cable and also communicates with the monitoring backend via a 4G communication network and the Internet. It is also connected to the fan control cabinet of the mine ventilation equipment via a cable. The data acquisition unit collects relevant information about the mine ventilation equipment through the front-end sensor and transmits the collected information to the monitoring backend via the 4G communication network to achieve remote monitoring. The monitoring backend transmits control signals to the data acquisition unit via the 4G communication network, and the data acquisition unit controls the fan operation through the fan control cabinet to achieve remote control. This patented remote monitoring device can achieve unified monitoring of multiple mine ventilation equipment, thus reducing monitoring costs. Simultaneously, the monitoring backend is located in the monitoring room of the mine management area, reliably realizing the operation monitoring of the mine ventilation equipment and plugging previous monitoring and management loopholes.

[0004] In existing technologies, cameras paired with 4G communication networks can be used to remotely monitor the status of mine ventilation equipment. However, the underground environment of mines generally contains flammable and explosive gases such as methane. When the methane concentration reaches the safety threshold, the circuitry inside the camera is prone to generating electrical sparks, which can ignite the methane and cause an explosion. Therefore, the camera needs to be retracted in advance when the methane concentration rises abnormally. At the same time, in the event of an explosion, the gas detection equipment used to monitor the methane concentration will also be damaged, further increasing the equipment wear and tear costs. Summary of the Invention

[0005] This invention provides a WiFi-based remote monitoring device for mine ventilation equipment. It offers a method to automatically seal the opening on the outside of the mounting base by automatically closing the explosion-proof plate, and to ensure the reliability of the sealing by using magnetic attraction, thereby further enhancing the protection of the internal camera.

[0006] This invention discloses a WiFi-based remote monitoring device for mine ventilation equipment, implemented as follows: The device includes an explosion-proof box with a waist-shaped groove on its top. A wireless transmission module is fixedly installed on the inner wall of the explosion-proof box. It also includes: a mounting base fixedly extending through the side of the explosion-proof box away from the wireless transmission module, with two supports symmetrically arranged on its surface; a camera slidably mounted on the inner wall of the mounting base, capturing real-time images of the ventilation equipment and transmitting the captured data to the wireless transmission module; a linear drive device fixedly mounted on the bottom of the inner wall of the explosion-proof box, with its telescopic end fixedly connected to the outer wall of the camera, driving the camera to translate along the mounting base; a stop plate fixedly mounted on top of the camera, slidingly extending through the surface of the mounting base; a shaft fixedly mounted between the two supports; and an explosion-proof plate rotatably mounted on the circumferential surface of the shaft.

[0007] Furthermore, the top of the abutment plate is attached to the side of the explosion-proof plate closest to the camera, and the side of the abutment plate away from the explosion-proof box is provided with an arc surface. The arc surface of the abutment plate contacts the outer wall of the explosion-proof plate. Under the continuous drive of the linear drive device, the abutment plate applies a thrust to the explosion-proof plate.

[0008] Furthermore, a magnetic sheet is fixedly inserted through the surface of the explosion-proof plate, and a magnetic suction plate is fixedly installed on the outer wall of the mounting base. The magnetic sheet and the magnetic suction plate are in contact and are tightly attracted under the magnetic attraction.

[0009] Furthermore, a mounting box is fixedly inserted inside the explosion-proof box, and a gas detection module is fixedly inserted inside the mounting box. The gas detection module detects harmful gases such as methane in the air in real time and uploads the gas detection data to the wireless transmission module synchronously. A ventilation hole is provided on the side of the mounting box away from the linear drive device.

[0010] Furthermore, the camera is equipped with a protective device for sealing the ventilation holes of the mounting box, and the protective device is equipped with a stabilizing device for improving its stability when closed; the protective device includes a sleeve bracket, a transmission rod and a rectangular plate. The sleeve bracket is fixedly installed on the circumferential surface of the camera, and the transmission rod is fixedly installed on the surface of the sleeve bracket. When the camera moves into the explosion-proof box, the sleeve bracket fixed to it drives the transmission rod to move synchronously. The rectangular plate is fixedly installed on the side of the transmission rod away from the sleeve bracket. The rectangular plate slides through the outer wall of the mounting box, and the side of the rectangular plate away from the transmission rod is attached to the inner wall of the explosion-proof box.

[0011] Furthermore, the explosion-proof box is symmetrically equipped with two sets of support components. The support components include a mounting frame and rollers. The two rollers can provide guide support for the rectangular plate and reduce displacement friction resistance. The mounting frame is fixedly installed on the inner side wall of the explosion-proof box, and the rollers are rotatably installed on the surface of the mounting frame. The circumferential surface of the rollers is in contact with the rectangular plate.

[0012] Furthermore, the stabilizing device includes a fixed frame, a limiting strip, a frustum, a stop block, and a spring. The fixed frame is fixedly inserted through the surface of the rectangular plate. The limiting strip is fixedly installed on the inner side wall of the fixed frame. The frustum is fixedly installed at the bottom of the inner wall of the fixed frame. The rectangular plate drives the fixed frame to move synchronously. The fixed frame drives the limiting strip and the frustum to move synchronously. The stop block is slidably installed on the surface of the limiting strip. The spring is disposed between the frustum and the stop block.

[0013] Furthermore, the side of the abutment block away from the truncated cone is provided with a curved surface, the curved surface of the abutment block contacts the roller, the roller applies a continuous pressing force to the abutment block, and the abutment block is in contact with the inner side wall of the fixed frame.

[0014] This invention provides a WiFi-based remote monitoring device for mine ventilation equipment. It offers the following advantages: 1. In this invention, the ambient air in the ventilation equipment enters the housing through the ventilation holes and comes into full contact with the gas detection module. The gas detection data of the ventilation equipment is transmitted back in real time through the wireless transmission module. When the gas concentration is abnormal, a command can be sent remotely to quickly put the camera into the explosion-proof box to avoid damage to the camera in the event of an explosion or other dangerous situation. At the same time, after the explosion-proof plate loses its support, it drives the magnetic sheet to rotate under its own gravity. The explosion-proof plate is automatically closed to automatically seal the opening on the outside of the housing. The magnetic attraction is used to ensure the reliability of the seal, further enhancing the protection of the internal camera.

[0015] 2. In this invention, the curved surface of the abutment first contacts the outer wall of the explosion-proof plate, and then applies a pushing force to the explosion-proof plate. The explosion-proof plate is opened by pushing through the abutment, which can prevent the camera lens from being bumped or scratched, and effectively protect the integrity of the camera of important equipment.

[0016] 3. In this invention, the end face of the rectangular plate is attached to the inner side wall of the mounting box, blocking the contact between air and the gas detection module. The camera and the rectangular plate are moved synchronously through the linkage structure, which can quickly protect the gas detection module in case of an emergency, effectively improving the efficiency of emergency protection. At the same time, the two rollers can form a guiding support for the rectangular plate, reducing the displacement friction resistance. By symmetrically arranging the rollers, the friction resistance during the displacement of the rectangular plate is reduced, ensuring the smoothness of the displacement of the rectangular plate, and also reducing the driving burden of the linear drive device, ensuring stable and reliable drive operation.

[0017] 4. In this invention, the deformable spring applies an elastic thrust to the frustum. This elastic thrust acts on the rectangular plate through the frustum and the fixed frame. By applying opposing elastic thrusts to both sides of the rectangular plate, the stability of the rectangular plate when it is attached to the inner wall of the mounting box can be improved, effectively ensuring the reliability of the gas detection module protection. At the same time, the spring that is deformed by pressure resets, pushing the stop block to reset along the limit strip. Through the elastic reset action of the spring, the stop block automatically resets after disengaging from the roller, restoring the roller's guiding support for the rectangular plate, effectively ensuring the smoothness of the overall linkage operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of the explosion-proof box provided in the embodiments of this application; Figure 3 This is a structural schematic diagram of the bonding state between the abutment and the explosion-proof plate provided in an embodiment of this application; Figure 4 This is a structural schematic diagram showing the positions of the mounting base and the support plate provided in an embodiment of this application; Figure 5 This is a structural diagram showing the positions of the mounting box and the rectangular plate provided in an embodiment of this application; Figure 6 This is a structural schematic diagram showing the location of the gas detection module provided in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of the fixed frame provided in an embodiment of this application.

[0019] Figure label: 1. Explosion-proof box; 2. Wireless transmission module; 3. Mounting base; 4. Camera; 5. Linear drive device; 6. Support plate; 7. Shaft; 8. Explosion-proof plate; 9. Magnetic sheet; 10. Magnetic suction plate; 11. Mounting box; 12. Gas detection module; 21. Sleeve bracket; 22. Transmission rod; 23. Rectangular plate; 24. Mounting frame; 25. Roller; 31. Fixing frame; 32. Limiting strip; 33. Frustum; 34. Support block; 35. Spring. Detailed Implementation

[0020] 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 only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1 - Figure 5One embodiment of the present invention is: a WiFi-based remote monitoring device for mine ventilation equipment, comprising an explosion-proof box 1, with a waist-shaped groove on the top of the explosion-proof box 1, and a wireless transmission module 2 fixedly installed on the inner wall of the explosion-proof box 1; further comprising: a mounting base 3, which is fixedly inserted through the side of the explosion-proof box 1 away from the wireless transmission module 2, with two supports symmetrically arranged on the surface of the mounting base 3; a camera 4, which is slidably installed on the inner wall of the mounting base 3; a linear drive device 5, which is fixedly installed at the bottom of the inner wall of the explosion-proof box 1, with its telescopic end fixedly connected to the outer wall of the camera 4, and is used to drive the camera 4 to perform translational movement along the mounting base 3; a stop plate 6, which is fixedly installed on the top of the camera 4 and slides through the surface of the mounting base 3; a shaft 7, which is fixedly installed between the two supports; and an explosion-proof plate 8, which is rotatably installed on the circumferential surface of the shaft 7, and can quickly retract the camera 4 into the explosion-proof box 1 by remotely sending commands to avoid damage to the camera 4 in the event of an explosion or other dangerous situation.

[0022] The top of the back plate 6 is attached to the side of the explosion-proof plate 8 closest to the camera 4. The side of the back plate 6 away from the explosion-proof box 1 is provided with an arc surface. The explosion-proof plate 8 can be opened by pushing the back plate 6, which can prevent the lens of the camera 4 from being bumped or scratched, and effectively protect the important equipment camera 4 from damage.

[0023] A magnetic sheet 9 is fixedly inserted through the surface of the explosion-proof plate 8, and a magnetic suction plate 10 is fixedly installed on the outer wall of the mounting base 3. The magnetic attraction is used to ensure the reliability of the sealing and further enhance the protection of the internal camera 4.

[0024] The explosion-proof box 1 has a mounting box 11 fixedly running through it. The mounting box 11 has a gas detection module 12 fixedly running through it. The mounting box 11 has a ventilation hole on the side away from the linear drive device 5. The gas detection data of the ventilation equipment is transmitted back in real time through the wireless transmission module 2, and the gas data of the environment where the ventilation equipment is located can be remotely monitored.

[0025] In this embodiment, the mine ventilation equipment is remotely monitored via WiFi. Camera 4 captures real-time images of the ventilation equipment and transmits the captured data to the wireless transmission module 2. Simultaneously, the ambient air in the ventilation equipment enters the housing 11 through the ventilation holes and comes into full contact with the gas detection module 12. The gas detection module 12 detects harmful gases such as methane in the air in real time and uploads the gas detection data to the wireless transmission module 2. The wireless transmission module 2 then sends the live images and gas detection data to the monitoring center, realizing online monitoring of the mine ventilation equipment. When the gas data received by the monitoring center shows an abnormal upward trend in gas concentration, the monitoring center immediately issues an early warning and remotely starts the linear drive device 5. Its output end drives the camera 4 to move into the explosion-proof box 1. The camera 4 drives the back plate 6 to move synchronously. The gas detection data of the ventilation equipment is transmitted back in real time through the wireless transmission module 2. When the gas concentration is abnormal, a command can be sent remotely to quickly put the camera 4 into the explosion-proof box 1 to avoid damage to the camera 4 in the event of an explosion or other dangerous situation. As the abutment plate 6 moves with the camera 4, its contact surface with the explosion-proof plate 8 gradually separates. When the camera 4 and the abutment plate 6 have completely moved into the internal space of the explosion-proof box 1 and the mounting base 3, the abutment plate 6 and the explosion-proof plate 8 are completely separated. After the explosion-proof plate 8 loses its support, it drives the magnetic sheet 9 to rotate around the shaft 7 under its own gravity. After rotating into position, the explosion-proof plate 8 is attached to the outer wall of the mounting base 3, and the magnetic sheet 9 is in contact with the magnetic suction plate 10. Under the magnetic attraction, they are tightly attracted, thereby sealing the outer opening of the mounting base 3. By automatically closing the explosion-proof plate 8, the outer opening of the mounting base 3 is automatically sealed, and the magnetic attraction is used to ensure the reliability of the sealing, further enhancing the protection capability of the internal camera 4. After the ventilation equipment is in a safe environment, the linear drive device 5 is remotely activated. Its output end drives the camera 4 to move outward from the explosion-proof box 1. The camera 4 drives the support plate 6 to move synchronously. During the movement, the arc surface of the support plate 6 contacts the outer wall of the explosion-proof plate 8. Under the continuous drive of the linear drive device 5, the support plate 6 applies a pushing force to the explosion-proof plate 8. The explosion-proof plate 8 drives the magnetic sheet 9 to rotate upward around the shaft 7, causing the magnetic sheet 9 to detach from the magnetic suction plate 10. After the camera 4 moves to the working position, the image monitoring operation can be resumed. The explosion-proof plate 8 can be opened by pushing with the support plate 6, which can prevent the camera lens from being bumped or scratched, effectively protecting the integrity of the important equipment camera 4.

[0026] Please see Figure 1 - Figure 7 Based on the above embodiments, in another embodiment of the present invention, the camera 4 is provided with a protective device for sealing the ventilation holes of the mounting box 11, and the protective device is provided with a stabilizing device for improving its stability after it is closed; the protective device includes a sleeve bracket 21, a transmission rod 22 and a rectangular plate 23. The sleeve bracket 21 is fixedly installed on the circumferential surface of the camera 4, the transmission rod 22 is fixedly installed on the surface of the sleeve bracket 21, and the rectangular plate 23 is fixedly installed on the side of the transmission rod 22 away from the sleeve bracket 21. The rectangular plate 23 slides through the outer wall of the mounting box 11, and the side of the rectangular plate 23 away from the transmission rod 22 is attached to the inner wall of the explosion-proof box 1. The camera 4 and the rectangular plate 23 are moved synchronously through the linkage structure, which can quickly protect the gas detection module 12 in case of an emergency and effectively improve the efficiency of emergency protection.

[0027] The explosion-proof box 1 has two sets of support components symmetrically arranged inside. The support components include a mounting frame 24 and rollers 25. The mounting frame 24 is fixedly installed on the inner side wall of the explosion-proof box 1, and the rollers 25 are rotatably installed on the surface of the mounting frame 24. The circumferential surface of the rollers 25 is in contact with the rectangular plate 23. By symmetrically arranging the rollers 25, the frictional resistance when the rectangular plate 23 is displaced is reduced, and the smoothness of the displacement of the rectangular plate 23 is ensured.

[0028] The stabilizing device includes a fixed frame 31, a limiting strip 32, a frustum 33, a stop block 34, and a spring 35. The fixed frame 31 is fixedly inserted through the surface of the rectangular plate 23. The limiting strip 32 is fixedly installed on the inner side wall of the fixed frame 31. The frustum 33 is fixedly installed on the bottom of the inner wall of the fixed frame 31. The stop block 34 is slidably installed on the surface of the limiting strip 32. The spring 35 is disposed between the frustum 33 and the stop block 34. By applying opposing elastic thrusts to both sides of the rectangular plate 23, the stability of the rectangular plate 23 when it is in contact with the inner side wall of the mounting box 11 can be improved, effectively ensuring the reliability of the protection of the gas detection module 12.

[0029] The side of the abutment 34 away from the truncated cone 33 has a curved surface. The abutment 34 fits against the inner wall of the fixed frame 31. Through the elastic reset action of the spring 35, the abutment 34 automatically resets after disengaging from the roller 25, restoring the roller 25's guiding support for the rectangular plate 23.

[0030] In this embodiment, when the camera 4 moves into the explosion-proof box 1, the sleeve bracket 21 fixed to it drives the transmission rod 22 to move synchronously, and the transmission rod 22 drives the rectangular plate 23 to move synchronously. When the camera 4 moves to the preset position, the end face of the rectangular plate 23 fits against the inner wall of the box 11, blocking the air from contacting the gas detection module 12. When the camera 4 moves to the outside of the explosion-proof box 1, the sleeve bracket 21 drives the transmission rod 22 to reset, and the transmission rod 22 drives the rectangular plate 23 to reset synchronously. During this process, the end face of the rectangular plate 23 is separated from the inner wall of the mounting box 11, and the air and gas detection module 12 are restored to contact. The camera 4 and the rectangular plate 23 are moved synchronously through the linkage structure, which can quickly protect the gas detection module 12 in case of emergency and effectively improve the efficiency of emergency protection. When the rectangular plate 23 is displaced, the roller 25 that is in contact with its outer wall rotates synchronously with the rectangular plate 23 due to the friction of the rectangular plate 23. At the same time, the rectangular plate 23 is displaced between two symmetrically arranged rollers 25. The two rollers 25 can form a guide support for the rectangular plate 23, reduce the displacement friction resistance, make the displacement of the rectangular plate 23 smoother, and thus reduce the driving burden of the linear drive device 5. By symmetrically arranging the rollers 25, the friction resistance of the rectangular plate 23 during displacement is reduced, ensuring the smoothness of the displacement of the rectangular plate 23, and the driving burden of the linear drive device 5 is reduced, ensuring stable and reliable drive operation. When the rectangular plate 23 moves toward the mounting box 11, the rectangular plate 23 drives the fixed frame 31 to move synchronously. The fixed frame 31 drives the limiting strip 32 and the frustum 33 to move synchronously. The limiting strip 32 drives the abutment block 34 to move synchronously. During the movement, the curved surface of the abutment block 34 contacts the roller 25. As the rectangular plate 23 gradually adheres to the inner wall of the mounting box 11, the roller 25 applies a continuous squeezing force to the abutment block 34. Driven by the squeezing force, the abutment block 34 moves along the limiting strip 32 toward the frustum 33. At the same time, it squeezes the spring 35 to make it elastically deform. The deformed spring 35 applies an elastic thrust to the frustum 33. This elastic thrust is applied to the rectangular plate 23 through the frustum 33 and the fixed frame 31. Combined with the elastic thrust of the spring 35 on the other side, the rectangular plate 23 is subjected to opposing elastic thrusts. By applying opposing elastic thrusts to both sides of the rectangular plate 23, the stability of the rectangular plate 23 when it adheres to the inner wall of the mounting box 11 can be improved, effectively ensuring the reliability of the gas detection module 12 protection. When the rectangular plate 23 drives the fixed frame 31 to reset, the fixed frame 31 drives the limiting strip 32 and the frustum 33 to move synchronously. The limiting strip 32 drives the abutment block 34 to move synchronously. During the displacement, the curved surface of the abutment block 34 gradually separates from the roller 25, and the squeezing force applied to it by the roller 25 decreases accordingly. The spring 35, which is deformed by pressure, resets at this time, pushing the abutment block 34 to reset along the limiting strip 32. Through the elastic reset action of the spring 35, the abutment block 34 automatically resets after separating from the roller 25, restoring the guiding support of the roller 25 for the rectangular plate 23, effectively ensuring the stability of the overall linkage operation.

[0031] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A WiFi-based remote monitoring device for mine ventilation equipment, characterized in that, The explosion-proof box (1) has a waist-shaped groove on its top, and a wireless transmission module (2) is fixedly installed on the inner wall of the explosion-proof box (1). It also includes: Mounting base (3), which is fixedly inserted through the side of the explosion-proof box (1) away from the wireless transmission module (2), and two supports are symmetrically arranged on the surface of the mounting base (3); Camera (4), which is slidably mounted on the inner wall of the mounting base (3); Linear drive device (5), the linear drive device (5) is fixedly installed on the bottom of the inner wall of the explosion-proof box (1), the telescopic end of the linear drive device (5) is fixedly connected to the outer wall of the camera (4), the linear drive device (5) is used to drive the camera (4) to make translational movements along the mounting base (3); A stop plate (6) is fixedly installed on the top of the camera (4) and slides through the surface of the mounting base (3); Shaft (7), which is fixedly installed between two supports; Explosion-proof plate (8), which is rotatably mounted on the circumferential surface of shaft (7).

2. The WiFi-based remote monitoring device for mine ventilation equipment according to claim 1, characterized in that, The top of the abutment (6) is attached to the side of the explosion-proof plate (8) near the camera (4), and the side of the abutment (6) away from the explosion-proof box (1) is provided with an arc surface.

3. The WiFi-based remote monitoring device for mine ventilation equipment according to claim 2, characterized in that, The explosion-proof plate (8) has a magnetic sheet (9) fixedly inserted through its surface, and the outer wall of the mounting base (3) has a magnetic suction plate (10) fixedly installed.

4. The WiFi-based remote monitoring device for mine ventilation equipment according to claim 3, characterized in that, The explosion-proof box (1) has a mounting box (11) fixedly inserted inside, and a gas detection module (12) is fixedly inserted inside the mounting box (11). A ventilation hole is provided on the side of the mounting box (11) away from the linear drive device (5). The camera (4) is provided with a protective device for sealing the ventilation hole of the mounting box (11), and the protective device is provided with a stabilizing device for improving its stability after it is closed.

5. A WiFi-based remote monitoring device for mine ventilation equipment according to claim 4, characterized in that, The protective device includes a sleeve bracket (21), a transmission rod (22), and a rectangular plate (23). The sleeve bracket (21) is fixedly installed on the circumferential surface of the camera (4). The transmission rod (22) is fixedly installed on the surface of the sleeve bracket (21). The rectangular plate (23) is fixedly installed on the side of the transmission rod (22) away from the sleeve bracket (21). The rectangular plate (23) slides through the outer wall of the housing (11). The side of the rectangular plate (23) away from the transmission rod (22) is attached to the inner wall of the explosion-proof box (1).

6. A WiFi-based remote monitoring device for mine ventilation equipment according to claim 5, characterized in that, The explosion-proof box (1) is symmetrically provided with two sets of support components. The support components include a mounting frame (24) and a roller (25). The mounting frame (24) is fixedly installed on the inner side wall of the explosion-proof box (1). The roller (25) is rotatably installed on the surface of the mounting frame (24). The circumferential surface of the roller (25) is in contact with the rectangular plate (23).

7. A WiFi-based remote monitoring device for mine ventilation equipment according to claim 6, characterized in that, The stabilizing device includes a fixed frame (31), a limiting strip (32), a frustum (33), a stop block (34), and a spring (35). The fixed frame (31) is fixedly inserted through the surface of the rectangular plate (23). The limiting strip (32) is fixedly installed on the inner side wall of the fixed frame (31). The frustum (33) is fixedly installed at the bottom of the inner wall of the fixed frame (31). The stop block (34) is slidably installed on the surface of the limiting strip (32). The spring (35) is disposed between the frustum (33) and the stop block (34).

8. A WiFi-based remote monitoring device for mine ventilation equipment according to claim 7, characterized in that, The abutment (34) has a curved surface on the side away from the frustum (33), and the abutment (34) is in contact with the inner wall of the fixed frame (31).

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