T-shaped roadway structure in a mine

Abstract

The utility model relates to underground structure technical field especially relates to a kind of underground T type roadway structure, it includes tunneling main roadway and blind end roadway, one end of blind end roadway is connected perpendicularly with tunneling main roadway, and tunneling main roadway is communicated with blind end roadway, by being provided with roller shutter wind guide mechanism, when staff constructs, mines in blind end roadway, make the reel of roller shutter wind guide mechanism be in stretch open state, stretch open after telescopic air deflector is located in the middle of blind end roadway, telescopic air deflector and the side wall of blind end roadway form air duct, telescopic air deflector is wind guiding, tunneling main roadway wind is guided to blind end roadway, wind is guided back flow tunneling main roadway, make wind can orderly from tunneling main roadway into blind end roadway and can orderly from blind end roadway back flow to tunneling main roadway, effectively reduce the possibility that wind flow appears turbulence state in blind end roadway, improve the air volume of blind end roadway, significantly improve the ventilation effect of blind end roadway.

Description

Technical Field

[0001] This utility model relates to the field of underground structure technology, and in particular to an underground T-shaped tunnel structure. Background Technology

[0002] During underground coal mine excavation, T-shaped roadway structures are sometimes encountered. A T-shaped roadway structure includes a main tunnel and a single-ended roadway. One end of the single-ended roadway is perpendicularly connected to the main tunnel, and the main tunnel and the single-ended roadway are interconnected. Workers need to carry out construction and mining in both the main tunnel and the single-ended roadway. Although the single-ended roadway is connected to the main tunnel and air can enter the single-ended roadway, the lack of a ventilation guide device often results in turbulent airflow in the single-ended roadway, poor circulation, and insufficient air volume. This leads to poor ventilation in the single-ended roadway and affects the safety of the workers. Utility Model Content

[0003] The technical problem solved by this utility model is to provide an underground T-shaped tunnel structure with better ventilation effect in a single-ended tunnel.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an underground T-shaped roadway structure, including a main tunnel and a single-ended roadway, one end of which is perpendicularly connected to the main tunnel and the main tunnel is connected to the single-ended roadway. It also includes a roller shutter ventilation mechanism, which includes a frame, a motor, a roller shaft and a telescopic ventilation plate. The roller shaft is rotatably mounted on the frame, the telescopic ventilation plate is wound on the roller shaft, the motor is mounted on the frame, and the output shaft of the motor is connected to one end of the roller shaft. The motor can drive the roller shaft to rotate to drive the telescopic ventilation plate to extend and retract.

[0005] The frame is detachably installed on the side wall of the main tunnel away from the dead-end tunnel. After the telescopic air guide is extended, it is perpendicular to the ventilation direction of the main tunnel. The telescopic air guide can be extended into the dead-end tunnel, and the extended telescopic air guide is located in the middle of the dead-end tunnel.

[0006] Furthermore, the extended telescopic air guide vane is located at the very center of the single-ended tunnel.

[0007] Furthermore, the frame is detachably mounted on the side wall of the main tunnel away from the single-ended tunnel using bolts.

[0008] Furthermore, the motor is a servo motor, and the system also includes a controller, with the motor and controller being electrically connected.

[0009] Furthermore, the controller is a microcontroller.

[0010] Furthermore, it also includes an air volume sensor, which is installed on the side wall of the single-ended tunnel and is electrically connected to the controller.

[0011] Furthermore, the air volume sensor is installed on the side wall of the single-ended roadway, away from the main tunnel.

[0012] The beneficial effects of this utility model are as follows: By setting up a roller shutter air guide mechanism, when workers are constructing or excavating in a single-ended roadway, the roller shutter air guide mechanism is in an extended state. The extended telescopic air guide plate is located in the middle of the single-ended roadway. The telescopic air guide plate and the side wall of the single-ended roadway form an air duct. The telescopic air guide plate plays a guiding role, directing the air from the main roadway to the single-ended roadway and then guiding the air back into the main roadway. This allows the air to enter the single-ended roadway from the main roadway in an orderly manner and to return to the main roadway in an orderly manner. This effectively reduces the possibility of turbulent airflow in the single-ended roadway, increases the air volume in the single-ended roadway, and significantly improves the ventilation effect of the single-ended roadway. When workers are not working or mining in the single-ended roadway, the roller shutter ventilation mechanism is in a retracted state, which has almost no impact on the ventilation of the main roadway. When the work or mining in the single-ended roadway is completed, the entire roller shutter ventilation mechanism can be disassembled and reused to improve resource utilization. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention;

[0014] Figure 2 yes Figure 1 Schematic diagram at point A in the middle;

[0015] Figure 3 This is a schematic diagram of the air guide mechanism for the roller shutter;

[0016] Figure 4 This is a schematic diagram of the control principle of this utility model;

[0017] The components, parts and numbers in the diagram are as follows: 1. Main tunnel; 2. Single-ended tunnel; 3. Roller curtain ventilation mechanism; 31. Frame; 32. Motor; 33. Roller shaft; 34. Telescopic ventilation vane; 4. Air volume sensor. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the T-shaped tunnel structure of this utility model includes a main tunnel 1 and a single-ended tunnel 2. One end of the single-ended tunnel 2 is perpendicularly connected to the main tunnel 1, and the main tunnel 1 and the single-ended tunnel 2 are connected. It also includes a roller shutter ventilation mechanism 3. The roller shutter ventilation mechanism 3 includes a frame 31, a motor 32, a roller 33 and a telescopic ventilation plate 34. The roller 33 is rotatably mounted on the frame 31. The telescopic ventilation plate 34 is wound on the roller 33. The motor 32 is mounted on the frame 31. The output shaft of the motor 32 is connected to one end of the roller 33. The motor 32 can drive the roller 33 to rotate so as to drive the telescopic ventilation plate 34 to extend and retract.

[0020] The frame 31 is detachably installed on the side wall of the main tunnel 1 away from the single-ended tunnel 2. After the telescopic air guide 34 is extended, it is perpendicular to the ventilation direction of the main tunnel 1. The telescopic air guide 34 can be extended into the single-ended tunnel 2, and the extended telescopic air guide 34 is located in the middle of the single-ended tunnel 2.

[0021] For example Figure 1 As shown, when workers are constructing or mining in the single-ended tunnel 2, the roller 33 is in the extended state. Figure 1 The arrows indicate the wind direction. The extended telescopic air guide 34, when extended, is located in the middle of the single-ended tunnel 2. The telescopic air guide 34 and the sidewall of the single-ended tunnel 2 form an air duct. The telescopic air guide 34 guides the air from the main tunnel 1 into the single-ended tunnel 2, and then guides the air back into the main tunnel 1. This ensures that the air can flow orderly from the main tunnel 1 into the single-ended tunnel 2 and back orderly from the single-ended tunnel 2 into the main tunnel 1, effectively reducing the possibility of turbulent airflow in the single-ended tunnel 2, increasing the air volume in the single-ended tunnel 2, and significantly improving the ventilation effect of the single-ended tunnel 2. When workers are not working or mining in the single-ended tunnel 2, the roller 33 is in a retracted state, having almost no impact on the ventilation of the main tunnel 1. When the work or mining in the single-ended tunnel 2 is completed, the entire roller curtain air guide mechanism 3 can be disassembled and reused, improving resource utilization.

[0022] Specifically, the roller shutter ventilation mechanism 3 is similar to a roller shutter door structure. The working principle of the roller shutter ventilation mechanism 3 is as follows: the motor 32 operates, causing its output shaft to rotate. The rotation of the motor 32's output shaft drives the roller shaft 33 to rotate, which in turn causes the telescopic ventilation vane 34 to be in an extended or retracted state. Furthermore, the extension length of the telescopic ventilation vane 34 can be adjusted by controlling the amount of extension, allowing the roller shutter ventilation mechanism 3 to be applicable to single-ended tunnels 2 of different depths.

[0023] The telescopic air guide plate 34 is made of a fireproof material that has a certain degree of elasticity and strength when extended. To improve the stability of the telescopic air guide plate 34, slide rails can be installed on the side walls of the main tunnel 1 and the single-ended tunnel 2 on both the upper and lower sides of the telescopic air guide plate 34, with the telescopic air guide plate 34 set in the slide rails. More preferably, the slide rails are installed on the upper side of the telescopic air guide plate 34.

[0024] To improve the automation level of the roller shutter air guide mechanism 3 and facilitate its use, the motor 32 is preferably a servo motor, and a controller is also included. The motor 32 is electrically connected to the controller, and the operation and shutdown of the motor 32 are controlled by the controller. To ensure the effectiveness of the controller, a microcontroller is preferably used.

[0025] To further improve the performance of the roller shutter air guide mechanism 3, for example... Figure 1 , Figure 4 As shown, this utility model also includes an air volume sensor 4, which is installed on the side wall of the single-ended tunnel 2. The air volume sensor 4 is electrically connected to the controller. Preferably, the air volume sensor 4 is installed on the side wall of the single-ended tunnel 2 away from the main tunnel 1. The air volume sensor 4 is used to measure the air volume around its installation location, which represents the air volume in the single-ended tunnel 2. The air volume sensor 4 transmits the measured data to the controller. After receiving and analyzing the data, the controller automatically controls whether the roller shutter air guide mechanism 3 works and controls the extension amount of the telescopic air guide vane 34 to ensure that the air volume in the single-ended tunnel 2 is within the set range.

[0026] To further improve the air guiding effect of the telescopic air guide 34, the extended telescopic air guide 34 is located at the center of the single-ended tunnel 2.

[0027] To facilitate the installation and disassembly of the roller shutter ventilation mechanism 3, the frame 31 is detachably mounted on the side wall of the main tunnel 1 away from the single-ended tunnel 2 by bolts, preferably expansion bolts.

Claims

1. An underground T-shaped tunnel structure, comprising a main tunnel (1) and a single-ended tunnel (2), one end of the single-ended tunnel (2) being perpendicularly connected to the main tunnel (1), and the main tunnel (1) and the single-ended tunnel (2) being interconnected, characterized in that: It also includes a roller shutter air guide mechanism (3), which includes a frame (31), a motor (32), a roller (33) and a telescopic air guide plate (34). The roller (33) is rotatably mounted on the frame (31), and the telescopic air guide plate (34) is wound on the roller (33). The motor (32) is mounted on the frame (31), and the output shaft of the motor (32) is connected to one end of the roller (33). The motor (32) can drive the roller (33) to rotate so as to drive the telescopic air guide plate (34) to extend and retract. The frame (31) is detachably installed on the side wall of the main tunnel (1) away from the single-ended tunnel (2). After the telescopic air guide (34) is extended, it is perpendicular to the ventilation direction of the main tunnel (1). The telescopic air guide (34) can be extended into the single-ended tunnel (2), and the extended telescopic air guide (34) is located in the middle of the single-ended tunnel (2).

2. The underground T-shaped tunnel structure as described in claim 1, characterized in that: The extended telescopic air guide (34) is located at the middle of the single-ended tunnel (2).

3. The underground T-shaped tunnel structure as described in claim 1, characterized in that: The frame (31) is detachably mounted on the side wall of the main tunnel (1) away from the single-ended tunnel (2) by bolts.

4. The underground T-shaped tunnel structure as described in any one of claims 1 to 3, characterized in that: The motor (32) is a servo motor, and a controller is also included. The motor (32) is electrically connected to the controller.

5. The underground T-shaped tunnel structure as described in claim 4, characterized in that: The controller is a microcontroller.

6. The underground T-shaped tunnel structure as described in claim 4, characterized in that: It also includes an air volume sensor (4), which is installed on the side wall of the single-ended roadway (2) and is electrically connected to the controller.

7. The underground T-shaped tunnel structure as described in claim 6, characterized in that: The air volume sensor (4) is installed on the side wall of the single-ended roadway (2) away from the main tunnel (1).

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