A mine air door system suitable for trackless haulage roadway and a method of using the same

Abstract

This invention discloses a mine ventilation door system and its usage method suitable for trackless transport roadways. The system includes a ventilation door, a ventilation door opening and closing drive mechanism, a windshield opening and closing drive mechanism, an infrared detection mechanism, a wind speed sensor, and a control module. The ventilation door is located in the middle of the roadway. The ventilation door opening and closing drive mechanism is connected to the ventilation door and controls its opening and closing actions. The ventilation door has a windshield, through which airflow can pass. The windshield opening and closing drive mechanism is connected to the windshield to adjust the opening degree of the windshield. The wind speed sensor, infrared detection mechanism, ventilation door opening and closing drive mechanism, and windshield opening and closing drive mechanism are all communicatively connected to the control module. This mine ventilation door system and its usage method for trackless transport roadways can achieve automatic opening and closing of the ventilation door, reducing the workload of personnel and facilitating precise control of the working face airflow.

Description

Technical Field

[0001] This invention relates to the field of underground mine safety construction technology, and in particular to a mine ventilation door system suitable for trackless transport roadways and its usage method. Background Technology

[0002] In underground mining operations, the ventilation system is one of the safety guarantees for mine production. Especially with the increase in mining depth, ventilation systems face many problems such as complex line structures, difficulties in air volume adjustment and distribution, and turbulent airflow in local areas underground. This can even lead to situations where fresh air cannot reach the designated working face. Air doors, as an important structure for optimizing the ventilation system, can isolate and regulate airflow, creating favorable conditions for improving the mine's ventilation environment. However, existing mine ventilation systems mostly use manual air doors, requiring on-site operation by vehicle drivers or dedicated personnel to adjust their opening and closing. On the one hand, manual operation significantly increases the labor intensity of workers, and the delayed response of the air doors can easily cause excessively long waiting times for trackless transport vehicles, reducing transportation efficiency. On the other hand, manual air doors are difficult to control precisely, resulting in significant air leakage and air volume loss, making it impossible to stably maintain the required air volume at the working face. Frequent manual adjustments further exacerbate the workload of personnel. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a mine ventilation door system and its usage method that can realize automatic opening and closing of ventilation doors, reduce the workload of personnel, and facilitate precise control of the air volume of the working face.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A mine ventilation door system suitable for trackless transport roadways includes a ventilation door, a ventilation door opening and closing drive mechanism, a ventilation window opening and closing drive mechanism, an infrared detection mechanism, a wind speed sensor, and a control module. The air door is located in the middle of the roadway, and the air door opening and closing drive mechanism is connected to the air door to control the opening and closing action of the air door. The damper is equipped with a vent, through which airflow can pass through the damper; the vent opening and closing drive mechanism is connected to the vent to adjust the opening degree of the vent. Two infrared detection mechanisms are provided, which are respectively installed on the air inlet side and air outlet side of the tunnel; Two wind speed sensors are provided, which are installed on the air inlet side and air outlet side of the tunnel, respectively; The wind speed sensor, infrared detection mechanism, damper opening and closing drive mechanism, and window opening and closing drive mechanism are all communicatively connected to the control module. The control module can send a window opening adjustment signal to the window opening and closing drive mechanism based on the wind speed information collected by each of the wind speed sensors to control the degree of window opening and closing. The control module can determine whether the target vehicle has entered or exited the alley based on the detection signals of the two infrared detection mechanisms, and send a damper opening and closing signal to the damper opening and closing drive mechanism accordingly to control the opening and closing of the damper.

[0005] As a further improvement to the above technical solution: the damper includes a door frame, a left door body, and a right door body. The door frame is fixed to the inner wall of the tunnel on all four sides. The left door body is hinged to the left side of the door frame, and the right door body is hinged to the right side of the door frame. The damper opening and closing drive mechanism is connected to the left door body and the right door body respectively to control the simultaneous opening and closing of the left door body and the right door body.

[0006] As a further improvement to the above technical solution: the damper opening and closing drive mechanism includes a mounting base, a connecting rod, and a telescopic electric push rod. Two mounting bases are provided and are respectively installed on the upper edge of the left and right door bodies. The mounting base is provided with a pin, and the two pins pass through both ends of the connecting rod from bottom to top and can be rotatably engaged with the connecting rod. The two ends of the telescopic electric push rod are respectively hinged to the door frame and the connecting rod, and can swing along the width direction of the aisle through extension and retraction. The telescopic electric push rod is communicatively connected to the control module.

[0007] As a further improvement to the above technical solution: the left door body is provided with the wind window and the wind window opening and closing drive mechanism, the wind window is a louver, and the wind window opening and closing drive mechanism is used to adjust the tilt angle of the louver blades.

[0008] As a further improvement to the above technical solution: the windshield opening and closing drive mechanism includes a drive gear, a drive rack and a drive motor; The left door body is provided with a guide groove, and the drive rack is slidably engaged in the guide groove; the drive motor is mounted on the left door body, and its output shaft is coaxially and fixedly connected to the drive gear, and the drive gear meshes with the drive rack; The rotating shaft of each louver blade near the guide groove extends into the guide groove, and a linkage gear is fixedly connected to each rotating shaft, the linkage gear meshing with the drive rack; The drive motor is communicatively connected to the control module.

[0009] As a further improvement to the above technical solution: a small door for pedestrians to pass through is provided on the right side of the door, and a locking mechanism is provided on the small door.

[0010] As a further improvement to the above technical solution: the infrared detection mechanism includes a pair of infrared emitters and infrared sensors arranged opposite to each other, the infrared emitters and infrared sensors being located on the side walls of the roadway respectively, and the infrared sensors being communicatively connected to the control module.

[0011] As a further improvement to the above technical solution: the infrared detection mechanism is installed at a height higher than that of a pedestrian.

[0012] As a further improvement to the above technical solution, a monitoring camera is installed in the tunnel.

[0013] A method for using a mine ventilation door system suitable for trackless transport roadways, including ventilation window adjustment steps and automatic opening and closing steps of the ventilation door; The window adjustment steps include: A1. Wind speed sensors installed on the air intake and air outlet sides of the roadway respectively collect wind speed information in real time and transmit it to the control module; A2. The control module analyzes and judges the collected wind speed information: If the wind speed data collected by the wind speed sensors on both the air inlet and air outlet sides are within the preset reasonable wind speed range, then the opening degree of the windshield will remain unchanged. If the wind speed data collected by the air intake side wind speed sensor is within the preset reasonable wind speed range, while the wind speed data collected by the air outlet side wind speed sensor is not within the preset reasonable wind speed range, the control module sends a windshield opening adjustment signal to the windshield opening and closing drive mechanism to control the windshield opening and closing drive mechanism to adjust the opening and closing degree of the windshield until the wind speed data collected by the air outlet side wind speed sensor returns to the preset reasonable wind speed range. The automatic opening and closing steps of the damper include: B1. When a trackless transport vehicle enters the air intake side area of ​​the roadway, it triggers the infrared detection mechanism located on the air intake side of the roadway, which sends a detection signal that a vehicle has entered to the control module. B2. After receiving the detection signal, the control module sends a damper opening signal to the damper opening and closing drive mechanism, and controls the damper opening and closing drive mechanism to drive the damper to open. B3. When the trackless transport vehicle travels to the air outlet side area of ​​the tunnel, it triggers the infrared detection mechanism located on the air outlet side of the tunnel, which sends a detection signal that a vehicle has left to the control module. B4. After receiving the detection signal, the control module sends a damper closing signal to the damper opening and closing drive mechanism, and controls the damper opening and closing drive mechanism to drive the damper to close.

[0014] Compared with the prior art, the advantages of the present invention are as follows: This invention uses infrared detection mechanisms installed on the air intake and exhaust sides of the tunnel to accurately detect when a target vehicle enters or exits the tunnel. The control module then sends control signals to the door opening and closing drive mechanism to automatically complete the opening and closing of the door, eliminating the need for manual operation by on-site personnel and significantly reducing labor intensity. At the same time, it completely avoids the problem of delayed door opening and closing response caused by manual operation, reduces the waiting time of trackless transport vehicles, and effectively improves the efficiency of transport operations. This invention, by installing wind speed sensors on the intake and exhaust sides of the roadway, allows the control module to precisely adjust the opening and closing degree of the air vents based on the collected wind speed information. This achieves precise control of the airflow passing through the air vents, solving the problems of significant air leakage and severe airflow loss caused by the difficulty in precisely controlling the opening and closing degree of traditional manual air vents. It can stably maintain the required airflow at the working face, ensuring the reliability of the mine ventilation environment. Furthermore, the air vent design allows airflow to continue even when the air vent is closed, preventing airflow turbulence in local areas of the roadway. This facilitates the stable delivery of fresh air to the designated working face, avoids frequent adjustments to the opening and closing degree of the air vents which could affect their sealing performance, and reduces air leakage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the mine ventilation door system applicable to trackless transport roadways according to the present invention.

[0016] Figure 2 This is a front view schematic diagram of the ventilation door of the mine ventilation door system applicable to trackless transport roadways according to the present invention.

[0017] Figure 3 This is a side view schematic diagram of the ventilation door of the mine ventilation door system applicable to trackless transport roadways according to the present invention.

[0018] Figure 4 This is a schematic diagram of the information flow of the control module of the mine ventilation door system applicable to trackless transport roadways according to the present invention.

[0019] The labels in the diagram represent: 1. Air damper; 11. Door frame; 12. Left door body; 13. Right door body; 131. Small door; 132. Small glass window; 2. Air damper opening and closing drive mechanism; 21. Mounting base; 211. Pin; 22. Connecting rod; 23. Telescopic electric push rod; 3. Infrared detection mechanism; 31. Infrared transmitter; 32. Infrared sensor; 4. Wind speed sensor; 5. Control module; 51. Integrated control box; 52. Visual automatic control platform; 6. Lane; 7. Air window; 8. Air window opening and closing drive mechanism; 81. Drive gear; 82. Drive rack; 83. Drive motor; 84. Guide slide; 85. Linkage gear; 9. Monitoring camera. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] Example 1 Figures 1 to 4 An embodiment of the present invention applicable to a mine ventilation door system for trackless transport roadways is shown, such as... Figure 1 and Figure 2 As shown, the mine ventilation door system applicable to trackless transport roadways in this embodiment includes a ventilation door 1, a ventilation door opening and closing drive mechanism 2, a ventilation window opening and closing drive mechanism 8, an infrared detection mechanism 3, a wind speed sensor 4, and a control module 5. The air door 1 is located in the middle of the roadway 6. The air door opening and closing drive mechanism 2 is connected to the air door 1 and is used to control the opening and closing action of the air door 1. The damper 1 is equipped with a window 7, through which airflow can pass through the damper 1; the window opening and closing drive mechanism 8 is connected to the window 7 to adjust the opening and closing degree of the window 7; Two infrared detection units 3 are provided, installed on the air inlet side and air outlet side of the tunnel 6 respectively; Two wind speed sensors 4 are provided, which are installed on the air inlet side and air outlet side of the tunnel 6 respectively; The wind speed sensor 4, infrared detection mechanism 3, damper opening and closing drive mechanism 2, and window opening and closing drive mechanism 8 are all communicatively connected to the control module 5. The control module 5 can send a window opening adjustment signal to the window opening and closing drive mechanism 8 based on the wind speed information collected by each wind speed sensor 4 to control the opening and closing degree of the window 7. The control module 5 can determine whether the target vehicle has entered or exited the alleyway 6 based on the detection signals of the two infrared detection mechanisms 3, and send a damper opening and closing signal to the damper opening and closing drive mechanism 2 accordingly to control the opening and closing of the damper 1.

[0024] It should be noted that since the airflow in tunnel 6 usually comes from the ventilation fans, the air volume required at the work face is adjusted by regulating the power of the ventilation fans. If the wind speed sensor 4 is only installed on one side of tunnel 6, the following problems exist: If the wind speed sensor 4 is only installed on the outlet side, even if the wind speed is normal, it cannot detect the power redundancy of the ventilation fan at the inlet side. In reality, it may not be necessary to maintain high power operation. Simply increasing the opening of the air window 7 can meet the air volume requirement of the work face, resulting in a waste of electricity and equipment. If the wind speed sensor 4 is only installed on the inlet side, although it can monitor the inlet air volume, it cannot grasp the actual air volume transfer efficiency on the outlet side. Once the air door 1 leaks air, the opening of the air window 7 is not well adapted, or the tunnel 6 is partially blocked, the actual air volume at the work face may be far lower than the required value. The system will still mistakenly judge that the air volume is sufficient, resulting in insufficient ventilation at the work face. At the same time, blindly increasing the fan power may further aggravate the waste of energy. Setting up two wind speed sensors 4 on the air inlet and air outlet sides helps to avoid insufficient ventilation at the working face caused by misjudgment of air volume under a single wind speed sensor 4 configuration, ensuring ventilation safety in underground operations. It can also meet the air volume requirements of the working face and, in conjunction with the dynamic adjustment of the opening of the air window 7, avoid the ventilation fan from maintaining unnecessary high power operation, effectively reduce power consumption and unnecessary losses of ventilation equipment, and extend the service life of the equipment.

[0025] Further, see Figures 1 to 3 In this embodiment, the damper 1 includes a door frame 11, a left door body 12, and a right door body 13. The door frame 11 is fixed to the inner wall of the tunnel 6. The left door body 12 is hinged to the left side of the door frame 11, and the right door body 13 is hinged to the right side of the door frame 11. The damper opening and closing drive mechanism 2 is connected to the left door body 12 and the right door body 13 respectively to control the simultaneous opening and closing of the left door body 12 and the right door body 13. The damper opening and closing drive mechanism 2 drives the left door body 12 to open to the left and the right door body 13 to open to the right, leaving a middle space for vehicle passage. Preferably, the door frame 11 is embedded in the surrounding rock of the inner wall of the tunnel 6.

[0026] Further, see Figures 1 to 3In this embodiment, the damper opening and closing drive mechanism 2 includes a mounting base 21, a connecting rod 22, and a telescopic electric push rod 23. Two mounting bases 21 are provided and respectively installed on the upper edges of the left door body 12 and the right door body 13. The mounting base 21 is provided with pins 211, which pass through both ends of the connecting rod 22 from bottom to top and can rotate with the connecting rod 22. The two ends of the telescopic electric push rod 23 are hinged to the door frame 11 and the connecting rod 22 respectively, and can swing along the width direction of the aisle 6 through extension and retraction. The telescopic electric push rod 23 is communicatively connected to the control module 5. When it is necessary to open the damper 1, the control module 5 sends a damper opening signal (i.e., an extension command) to the telescopic electric push rod 23. The telescopic electric push rod 23 extends, applying a thrust to the connecting rod 22, thereby driving the two mounting bases 21 to cause the left door body 12 and the right door body 13 to extend outward in opposite directions synchronously with the door frame 11 until the damper 1 is fully opened, meeting the passage or ventilation requirements. When the damper needs to be closed, the control module 5 sends a damper closing signal (i.e., a retraction command) to the telescopic electric push rod 23. The telescopic electric push rod 23 retracts along the width of the tunnel 6, applying tension to the connecting rod 22 and driving the two mounting seats 21 to reset the left door body 12 and the right door body 13, thus completing the closure of the damper 1. Of course, in other embodiments, the telescopic electric push rod 23 can also be replaced by other telescopic components that can receive telescopic command signals, such as a telescopic hydraulic rod equipped with a dedicated electromagnetic reversing valve. The electromagnetic reversing valve is controlled by the control module 5, and the same technical effect as this embodiment can be achieved by switching the flow direction of hydraulic oil to drive the hydraulic rod to extend and retract.

[0027] Further, see Figure 1 and Figure 2In this embodiment, the left door 12 is provided with a louver 7 and a louver opening and closing drive mechanism 8. The louver 7 is a louver, and the louver opening and closing drive mechanism 8 is used to adjust the tilt angle of the louver blades. Specifically, the louver opening and closing drive mechanism 8 includes a drive gear 81, a drive rack 82, and a drive motor 83. The left door 12 is provided with a guide groove 84, and the drive rack 82 is slidably engaged in the guide groove 84. The drive motor 83 is mounted on the left door 12, and its output shaft is coaxially and fixedly connected to the drive gear 81. The drive gear 81 meshes with the drive rack 82. The rotating shaft of each louver blade near the guide groove 84 extends into the guide groove 84, and a linkage gear 85 is fixedly connected to each rotating shaft. The linkage gear 85 meshes with the drive rack 82. The drive motor 83 is communicatively connected to the control module 5. After the drive motor 83 starts, it drives the coaxially fixed drive gear 81 to rotate. The drive gear 81 meshes with the drive rack 82, thereby controlling the drive rack 82 to slide back and forth in a straight line within the guide groove 84. After the control module 5 sends a window opening adjustment signal to the drive motor 83, during the sliding process of the drive rack 82, it synchronously drives the meshing linkage gears 85 to rotate. Since the linkage gears 85 are fixedly connected to the rotating shaft of the louver blades, when the rotating shaft rotates with the linkage gears 85, it will cause the louver blades to change their tilt angle around the rotating shaft: when the angle between the blade and the door plane increases, the ventilation gap between adjacent blades expands accordingly, and the ventilation volume per unit time increases; when the angle decreases, the ventilation gap between adjacent blades narrows synchronously, and the ventilation volume decreases accordingly; when the blade rotates to the fully closed position, the edges of adjacent blades overlap each other, achieving a sealed partition of the window 7 and blocking the airflow. Once the data transmitted by the wind speed sensor 4 is within a reasonable range, the control module 5 sends a stop signal to the drive motor 83. The drive motor 83 stops running, the drive rack 82 stops sliding, and the louver blades maintain their current tilt angle position, completing one adjustment action of the windshield 7.

[0028] Further, see Figure 1 and Figure 2 In this embodiment, a small door 131 for pedestrians is provided on the right side of the door 13. The small door 131 is equipped with a locking mechanism and a small glass window 132. When staff need to pass through the air door 1, it is not necessary to open the entire air door 1, which is convenient and also allows for easy observation of the other side of the alleyway 6 through the small glass window 132.

[0029] Further, see Figure 1In this embodiment, the infrared detection mechanism 3 includes a pair of infrared emitters 31 and infrared sensors 32 arranged opposite to each other. The infrared emitters 31 and infrared sensors 32 are located on the side walls of the tunnel 6 respectively, and the infrared sensors 32 are communicatively connected to the control module 5. When the infrared sensor 32 on the air intake side does not receive the infrared light emitted by its opposite infrared emitter 31, it can be determined that a vehicle has entered the tunnel 6. When the infrared sensor 32 on the air outlet side does not receive the infrared light emitted by its opposite infrared emitter 31, it can be determined that a vehicle has exited the tunnel 6.

[0030] Furthermore, in this embodiment, the infrared detection mechanism 3 is installed at a height higher than that of a pedestrian. This avoids accidental opening of the damper 1 due to pedestrians passing by, reduces unnecessary actions of the damper opening and closing drive mechanism 2, lowers energy consumption, and extends the overall service life of the equipment.

[0031] Further, see Figure 1 In this embodiment, a monitoring camera 9 is installed in the tunnel 6 to monitor the situation in the tunnel 6 in real time. This is helpful to keep track of the vehicle traffic and the status of the air door 1 in the tunnel 6. When abnormal situations such as the air door 1 getting stuck, vehicle congestion, or people crossing the road illegally occur, the staff of the monitoring center can discover and dispatch the situation immediately.

[0032] Further, see Figure 1 and Figure 4 In this embodiment, the control module 5 includes an integrated control box 51 and a visual automatic control platform. The integrated control box 51 is equipped with a service switch, which has multiple data ports. It uses optical fiber to connect the monitoring camera 9, wind speed sensor 4, infrared detection mechanism 3, air door opening and closing drive mechanism 2, and air window opening and closing drive mechanism 8. It also has a manual air door switch button and an audible and visual alarm mechanism. The integrated control box 51 collects multi-source data, which is converted and processed by the service switch before being transmitted to the visual automatic control platform 52. The visual automatic control platform 52 mainly displays the following content: downhole 3D model, air door 1 installation position, infrared sensor 32 abnormal alarm, wind speed sensor 4 monitoring data, adjustment of air window 7 opening and closing angle, real-time video monitoring image, air door 1 control interface, etc. It has functions such as interface display, data interaction, data storage, voice intercom, emergency alarm, user management, system operation, and command control. The visual automatic control platform 52 can automatically send damper opening and closing signals to damper opening and closing drive mechanism 2 and window opening adjustment signals to damper opening and closing drive mechanism 2 based on the information transmitted from wind speed sensor 4 and infrared detection mechanism 3. Of course, it can also manually send damper opening and closing signals and window opening adjustment signals according to actual needs.

[0033] When the vehicle enters the tunnel 6, it triggers the infrared detection mechanism 3 on the air intake side. However, if the air door 1 does not open after the predetermined time, the visual automatic control platform 52 will trigger an alarm to remind staff to go down into the well for maintenance. At the same time, the audible and visual alarm mechanism of the integrated control box 51 will also sound an alarm to remind the driver to get out of the vehicle or a dedicated member to press the manual air door switch button to open the air door 1. After the vehicle passes through the air door 1, the driver or dedicated member returns to the integrated control box 51 and presses the air door switch button again to close the air door.

[0034] When the visual automatic control platform 52 sends a windshield opening adjustment signal to the windshield opening and closing drive mechanism 8, but the windshield opening and closing drive mechanism 8 does not adjust the opening of the windshield 7, the visual automatic control platform 52 will trigger an alarm to remind personnel to go down into the well for maintenance. The relevant personnel will manually adjust the opening of the windshield 7 until the wind speed data collected by the wind speed sensor 4 on the air outlet side returns to the preset reasonable wind speed range.

[0035] Example 2 This embodiment discloses a method for using a mine ventilation door system suitable for trackless transport roadways, including a ventilation window adjustment step and an automatic opening and closing step of the ventilation door 1; The steps for adjusting the windshield include: A1. Wind speed sensors 4, respectively installed on the air intake side and air outlet side of the roadway 6, collect wind speed information in real time and transmit it to the control module 5. A2. Control module 5 analyzes and judges the collected wind speed information: If the wind speed data collected by the wind speed sensors 4 on both the air inlet and air outlet sides are within the preset reasonable wind speed range, then the opening degree of the wind vent 7 will remain unchanged. If the wind speed data collected by the air inlet side wind speed sensor 4 is within the preset reasonable wind speed range, while the wind speed data collected by the air outlet side wind speed sensor 4 is not within the preset reasonable wind speed range, the control module 5 sends a windshield opening adjustment signal to the windshield opening and closing drive mechanism 8 to control the windshield opening and closing drive mechanism 8 to adjust the opening and closing degree of the windshield 7 until the wind speed data collected by the air outlet side wind speed sensor 4 returns to the preset reasonable wind speed range. The automatic opening and closing steps of the damper include: B1. When a trackless transport vehicle enters the air intake side area of ​​lane 6, it triggers the infrared detection mechanism 3 located on the air intake side of lane 6. The infrared detection mechanism 3 sends a detection signal that a vehicle has entered to the control module 5. B2. After receiving the detection signal, the control module 5 sends a damper opening signal to the damper opening and closing drive mechanism 2, and controls the damper opening and closing drive mechanism 2 to drive the damper 1 to open. B3. When the trackless transport vehicle travels to the air outlet side area of ​​the lane 6, it triggers the infrared detection mechanism 3 located on the air outlet side of the lane 6. The infrared detection mechanism 3 sends a detection signal that a vehicle has left to the control module 5. B4. After receiving the detection signal, the control module 5 sends a damper closing signal to the damper opening and closing drive mechanism 2, and controls the damper opening and closing drive mechanism 2 to drive the damper 1 to close.

[0036] Furthermore, in this embodiment, if the wind speed data collected by the air inlet side wind speed sensor 4 is less than the preset reasonable wind speed range, it is necessary to check the wind speed allocated to the nearby alleyway 6 and increase the power of the corresponding ventilation fan if necessary; if the wind speed data collected by the air inlet side wind speed sensor 4 is greater than the preset reasonable wind speed range, as long as the wind speed data collected by the air outlet side wind speed sensor 4 is within the preset reasonable wind speed range, it is not necessary to change the opening degree of the vent 7; otherwise, the opening degree of the vent 7 is adjusted until the wind speed data collected by the air outlet side wind speed sensor 4 is within the preset reasonable wind speed range.

[0037] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A mine ventilation door system suitable for trackless transport roadways, characterized in that, It includes a damper (1), a damper opening and closing drive mechanism (2), a window opening and closing drive mechanism (8), an infrared detection mechanism (3), a wind speed sensor (4), and a control module (5); The air door (1) is located in the middle of the roadway (6), and the air door opening and closing drive mechanism (2) is connected to the air door (1) to control the opening and closing action of the air door (1); The damper (1) is provided with a wind window (7), through which airflow can pass through the damper (1); the wind window opening and closing drive mechanism (8) is connected to the wind window (7) to adjust the opening degree of the wind window (7); The infrared detection mechanism (3) has two parts, which are respectively installed on the air inlet side and air outlet side of the tunnel (6); Two wind speed sensors (4) are provided, which are respectively installed on the air inlet side and air outlet side of the tunnel (6); The wind speed sensor (4), infrared detection mechanism (3), damper opening and closing drive mechanism (2), and windshield opening and closing drive mechanism (8) are all connected to the control module (5). The control module (5) can send a windshield opening adjustment signal to the windshield opening and closing drive mechanism (8) based on the wind speed information collected by each of the wind speed sensors (4) to control the opening and closing degree of the windshield (7). The control module (5) can determine whether the target vehicle enters or exits the alleyway (6) based on the detection signals of the two infrared detection mechanisms (3), and send a damper opening and closing signal to the damper opening and closing drive mechanism (2) to control the opening and closing of the damper (1).

2. The mine ventilation door system for trackless transport roadways according to claim 1, characterized in that, The damper (1) includes a door frame (11), a left door body (12), and a right door body (13). The door frame (11) is fixed to the inner wall of the alley (6). The left door body (12) is hinged to the left side of the door frame (11), and the right door body (13) is hinged to the right side of the door frame (11). The damper opening and closing drive mechanism (2) is connected to the left door body (12) and the right door body (13) respectively to control the simultaneous opening and closing of the left door body (12) and the right door body (13).

3. The mine ventilation door system for trackless transport roadways according to claim 2, characterized in that, The damper opening and closing drive mechanism (2) includes a mounting base (21), a connecting rod (22), and a telescopic electric push rod (23). The mounting base (21) has two parts and is installed on the upper edge of the left door body (12) and the right door body (13) respectively. The mounting base (21) is provided with a pin (211). The two pins (211) pass through the two ends of the connecting rod (22) from bottom to top and can rotate with the connecting rod (22). The two ends of the telescopic electric push rod (23) are hinged to the door frame (11) and the connecting rod (22) respectively, and can swing along the width direction of the lane (6) by telescopic extension. The telescopic electric push rod (23) is communicatively connected to the control module (5).

4. The mine ventilation door system for trackless transport roadways according to claim 2, characterized in that, The left door (12) is provided with the wind window (7) and the wind window opening and closing drive mechanism (8). The wind window (7) is a louver, and the wind window opening and closing drive mechanism (8) is used to adjust the tilt angle of the louver blades.

5. The mine ventilation door system for trackless transport roadways according to claim 4, characterized in that, The windshield opening and closing drive mechanism (8) includes a drive gear (81), a drive rack (82), and a drive motor (83). The left door body (12) is provided with a guide groove (84), and the drive rack (82) is slidably engaged in the guide groove (84); the drive motor (83) is installed on the left door body (12), and its output shaft is coaxially and fixedly connected to the drive gear (81), and the drive gear (81) meshes with the drive rack (82); The rotating shaft of each louver blade near the guide groove (84) extends into the guide groove (84), and a linkage gear (85) is fixedly connected to each rotating shaft, and the linkage gear (85) meshes with the drive rack (82); The drive motor (83) is communicatively connected to the control module (5).

6. The mine ventilation door system for trackless transport roadways according to claim 2, characterized in that, The right-side door (13) is provided with a small door (131) for pedestrians to pass through, and the small door (131) is provided with a locking mechanism.

7. A mine ventilation door system for trackless transport roadways according to any one of claims 1 to 6, characterized in that, The infrared detection mechanism (3) includes a pair of infrared emitters (31) and infrared sensors (32) arranged opposite to each other. The infrared emitters (31) and infrared sensors (32) are located on the side walls of the roadway (6) respectively. The infrared sensors (32) are communicatively connected to the control module (5).

8. A mine ventilation door system for trackless transport roadways according to any one of claims 1 to 6, characterized in that, The infrared detection mechanism (3) is installed at a height higher than that of a pedestrian.

9. A mine ventilation door system for trackless transport roadways according to any one of claims 1 to 6, characterized in that, The alleyway (6) is equipped with a surveillance camera (9).

10. The method of using a mine ventilation door system for trackless transport roadways according to any one of claims 1 to 9, characterized in that, This includes the window adjustment procedure and the automatic opening and closing procedure of the damper; The window adjustment steps include: A1. Wind speed sensors (4) installed on the air intake and air outlet sides of the roadway (6) collect wind speed information in real time and transmit it to the control module (5). A2. The control module (5) analyzes and judges the collected wind speed information: If the wind speed data collected by the wind speed sensors (4) on both the air inlet and air outlet sides are within the preset reasonable wind speed range, then the opening degree of the wind window (7) remains unchanged. If the wind speed data collected by the air inlet side wind speed sensor (4) is within the preset reasonable wind speed range, while the wind speed data collected by the air outlet side wind speed sensor (4) is not within the preset reasonable wind speed range, the control module (5) sends a windshield opening adjustment signal to the windshield opening and closing drive mechanism (8) to control the windshield opening and closing drive mechanism (8) to adjust the opening and closing degree of the windshield (7) until the wind speed data collected by the air outlet side wind speed sensor (4) returns to the preset reasonable wind speed range; The automatic opening and closing steps of the damper include: B1. When a trackless transport vehicle enters the air intake side area of ​​the lane (6), it triggers the infrared detection mechanism (3) located on the air intake side of the lane (6), which sends a detection signal that a vehicle has entered to the control module (5). B2. After receiving the detection signal, the control module (5) sends a damper opening signal to the damper opening and closing drive mechanism (2) and controls the damper opening and closing drive mechanism (2) to drive the damper (1) to open. B3. When the trackless transport vehicle travels to the air outlet side area of ​​the lane (6), it triggers the infrared detection mechanism (3) located on the air outlet side of the lane (6), which sends a detection signal that a vehicle has left to the control module (5). B4. After receiving the detection signal, the control module (5) sends a damper closing signal to the damper opening and closing drive mechanism (2) and controls the damper opening and closing drive mechanism (2) to drive the damper (1) to close.

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