A fixed fire early warning device for underground coal mines

Abstract

This utility model discloses a fixed fire early warning device for underground coal mines, comprising: a fixed plate for fixing the fire early warning device; a fixed housing and a sliding housing disposed on the fixed plate, the fixed housing being connected to the fixed plate, and the sliding housing being slidably connected to the side of the fixed housing away from the fixed plate, the connection of the fixed housing and the sliding housing forming the installation area of ​​the fire early warning device; an audible and visual alarm disposed within the installation area and mounted on the fixed housing; a sensor assembly disposed on the outer surface of the sliding housing; a controller disposed on the fixed housing and electrically connected to both the audible and visual alarm and the sensor assembly; and a power supply disposed on the fixed housing, the power supply providing power to the fire early warning device and connected to an external AC power source. This invention solves the problem of using fire alarms in underground coal mines.

Description

Technical Field

[0001] This utility model relates to the field of coal mine safety technology, specifically to a fixed fire early warning device for underground coal mines. Background Technology

[0002] Underground coal mines present an extremely complex working environment, rife with various potential hazards. Among these, fire hazards are particularly prominent, stemming from multiple sources such as spontaneous combustion of coal, electrical equipment malfunctions, gas leaks, and sparks generated during operations. All these factors can act as ignition points for fires. Spontaneous combustion of coal occurs when coal is exposed to air for an extended period, causing its internal temperature to gradually rise until it reaches its ignition point and spontaneously combusts. Electrical equipment malfunctions, such as aging equipment, short circuits, or overloads, can cause sparks or arcs, leading to fires. Gas leaks are equally dangerous; methane is a flammable and explosive gas that will rapidly ignite or even explode upon contact with an open flame or high temperature.

[0003] A fire in a mine can have catastrophic consequences. High temperatures and toxic fumes spread rapidly, seriously threatening the lives of miners. When fire warning devices operate underground, they are exposed to significant amounts of smoke and dust. Traditional fire warning devices incorporate ventilation holes in their casings to improve signal transmission and sound quality. However, these ventilation holes are also susceptible to smoke and dust contamination, potentially causing internal damage and hindering timely firefighting efforts. Therefore, developing a novel fixed fire warning device for underground coal mines has become a pressing issue for those skilled in the art. Utility Model Content

[0004] This application provides a fixed fire early warning device for underground coal mines, comprising:

[0005] A mounting plate is used to securely install fire warning devices.

[0006] A fixed housing and a sliding housing are provided on the fixed plate. The fixed housing is connected to the fixed plate, and the sliding housing is slidably connected to the side of the fixed housing away from the fixed plate. The fixed housing and the sliding housing are connected together to form the fire warning device, and an installation area is formed in the fixed housing (3).

[0007] An audible and visual alarm is installed in the installation area;

[0008] A sensor assembly is disposed on the outer surface of the sliding housing;

[0009] A controller is mounted on the fixed housing and is electrically connected to the audible and visual alarm and the sensor assembly, respectively.

[0010] A power supply is mounted on a fixed housing. The power supply is used to provide electrical energy to the fire warning device and is connected to an external AC power source.

[0011] Optionally, the fixed housing has a back plate, a top plate, a left side plate, and a right side plate;

[0012] The sliding housing has an outer side plate and a bottom plate;

[0013] The outer side plate is connected to the left side plate and the right side plate by a sliding groove, which is configured as an I-shaped sliding groove.

[0014] Optionally, two sets of movable components are symmetrically arranged at the bottom of the top plate. The movable components include a servo motor and a push rod. The servo motor is fixedly installed at the bottom of the top plate, and one end of the push rod is connected to the servo motor and the other end is connected to the bottom plate.

[0015] Optionally, fans are installed on the left side plate and the right side plate respectively, and the fans are electrically connected to the controller.

[0016] Optionally, the servo motor is also electrically connected to the controller.

[0017] Optionally, the sensor assembly includes a temperature sensor, a smoke sensor, and a carbon monoxide sensor, which are electrically connected to the controller.

[0018] Optionally, a reflective coating is sprayed onto each surface of the fixed housing and the sliding housing.

[0019] The beneficial effects of this application are as follows:

[0020] 1. This utility model provides a fire early warning device that is fixedly installed by a fixed plate, and the combination of the fixed shell and the sliding shell forms an installation area. The sliding connection makes the installation of the device and the maintenance of the internal equipment more convenient. For example, the sliding shell and the fixed shell are connected by an I-shaped groove, which facilitates disassembly and installation.

[0021] 2. This utility model provides an active component (servo motor and push rod) set at the bottom of the top plate, which can automatically adjust the position of the sliding housing as needed, and may play a role in some special situations (such as equipment maintenance, avoiding equipment damage, etc.); the fixed housing and the sliding housing are coated with reflective coatings on each side, which is conducive to the identification and location of the device in the dim environment of underground coal mines, and improves safety.

[0022] 3. This utility model provides fans installed on the left and right side plates that are electrically connected to the controller, which can ventilate and dissipate heat inside the device, ensuring that the internal devices such as the sound and light alarm and the controller work in a suitable temperature environment, thereby improving the stability and service life of the device. Attached Figure Description

[0023] Figure 1 A schematic diagram of the fire early warning device provided by this utility model in a stretched state.

[0024] Figure 2 A schematic diagram of the fire early warning device provided by this utility model in a combined state;

[0025] Figure 3 A schematic diagram of the internal structure of the fire early warning device provided by this utility model;

[0026] Figure 4 A schematic diagram of the internal front view structure of the fire early warning device provided by this utility model;

[0027] Figure 5 This is a schematic diagram of the sliding groove position provided by this utility model;

[0028] In the diagram: 1. Fixed plate; 2. Fire warning device; 3. Fixed housing; 4. Sliding housing; 5. Installation area; 6. Audible and visual alarm; 7. Sensor assembly; 8. Controller; 9. Power supply; 10. Back plate; 11. Top plate; 12. Left side plate; 13. Right side plate; 14. Outer side plate; 15. Base plate; 16. Sliding groove; 17. Movable component; 18. Servo motor; 19. Push rod; 20. Fan; 21. Temperature sensor; 22. Smoke sensor; 23. Carbon monoxide sensor. Detailed Implementation

[0029] 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.

[0030] Please refer to Figures 1 to 5 As shown, a fixed fire early warning device for underground coal mines includes:

[0031] Fixing plate 1, used for fixing and installing fire warning device 2;

[0032] The fixed plate 1 is provided with a fixed housing 3 and a sliding housing 4. The fixed housing 3 is connected to the fixed plate 1, and the sliding housing 4 is slidably connected to the side of the fixed housing 3 away from the fixed plate 1. After the fixed housing 3 and the sliding housing 4 are connected, they together form the fire warning device 2, and an installation area 5 is formed in the fixed housing 3.

[0033] Each surface of the fixed housing 3 and the sliding housing 4 is coated with a reflective coating. This reflective coating improves the visibility of the device in coal mines, especially in low-light or dimly lit environments, ensuring that workers can quickly and accurately identify the location of the fire warning device and take timely countermeasures. Furthermore, the sliding connection between the fixed housing 3 and the sliding housing 4 not only facilitates the installation and disassembly of the fire warning device 2 but also allows for adjustment of the size of the installation area 5 to accommodate different models of fire warning devices.

[0034] The fixed housing 3 has a back plate 10, a top plate 11, a left side plate 12 and a right side plate 13;

[0035] Two sets of movable components 17 are symmetrically arranged at the bottom of the top plate 11. Each movable component 17 includes a servo motor 18 and a push rod 19. The servo motor 18 is fixedly arranged at the bottom of the top plate 11. One end of the push rod 19 is connected to the servo motor 18, and the other end is connected to the bottom plate 15.

[0036] Fans 20 are respectively installed on the left side plate 12 and the right side plate 13, and the fans 20 are connected to the controller 8.

[0037] The servo motor 18 is also electrically connected to the controller 8.

[0038] It should be noted that when the fire warning device 2 is operating, if the sensor assembly 7 detects an abnormal increase in underground temperature or an excessive smoke concentration, the controller 8 will immediately activate the alarm system and accelerate air circulation via the fan 20 to help dissipate heat or remove harmful gases. Simultaneously, after receiving a signal from the controller 8, the servo motor 18 will drive the push rod 19 to ensure that the audible and visual alarm 6 is in optimal working condition within the installation area 5. This automatic adjustment function not only improves the accuracy and response speed of fire warnings but also effectively extends the service life of the warning device.

[0039] The sliding housing 4 has an outer side plate 14 and a bottom plate 15;

[0040] The outer side plate 14 is connected to the left side plate 12 and the right side plate 13 via a sliding groove 16. The sliding groove 16 is designed as an I-shaped groove, allowing the sliding housing 4 to slide stably on the fixed housing 3, enhancing the stability and reliability of the structure. The I-shaped groove design not only ensures smooth sliding but also effectively prevents the sliding housing 4 from falling off in case of accidents, further improving the safety of the device. Furthermore, the base plate 15 not only provides support for the fire warning device 2 but also seals the bottom of the installation area 5, preventing dust and moisture from the well from corroding the internal components of the warning device.

[0041] An audible and visual alarm 6 is installed inside the installation area 5 and is mounted on the fixed housing 3.

[0042] The sensor assembly 7 is disposed on the outer side of the sliding housing 4. The sensor assembly 7 includes a temperature sensor 21, a smoke sensor 22, and a carbon monoxide sensor 23. The temperature sensor 21, the smoke sensor 22, and the carbon monoxide sensor 23 are electrically connected to the controller 8.

[0043] The controller 8 is mounted on the fixed housing 3 and is electrically connected to the audible and visual alarm 6 and the sensor assembly 7 respectively.

[0044] A power supply 9 is installed on the fixed housing 3. The power supply 9 is used to provide power to the fire warning device 2. The power supply 9 is connected to an external AC power source.

[0045] The above description is merely a few embodiments of this application and is not intended to limit this application in any way. Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any changes or modifications made by those skilled in the art without departing from the scope of the technical solution of this application using the disclosed technical content are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A fixed fire early warning device for underground coal mines, characterized in that, include: Fixed plate (1) is used to fix and install fire warning device (2); A fixed housing (3) and a sliding housing (4) are provided on the fixed plate (1). The fixed housing (3) is connected to the fixed plate (1). The sliding housing (4) is slidably connected to the side of the fixed housing (3) away from the fixed plate (1). After the fixed housing (3) and the sliding housing (4) are connected, they together form the fire warning device (2), and an installation area (5) is formed in the fixed housing (3). An audible and visual alarm (6) is installed in the installation area (5); The sensor assembly (7) is disposed on the outer surface of the sliding housing (4); The controller (8) is mounted on the fixed housing (3) and is electrically connected to the audible and visual alarm (6) and the sensor assembly (7) respectively. A power supply (9) is installed on the fixed housing (3), and the power supply (9) is used to provide electrical energy to the fire warning device (2).

2. The fixed fire early warning device for underground coal mines according to claim 1, characterized in that, The fixed housing (3) has a back plate (10), a top plate (11), a left side plate (12), and a right side plate (13). The sliding housing (4) has an outer side plate (14) and a bottom plate (15). The outer side plate (14) is connected to the left side plate (12) and the right side plate (13) by a sliding groove (16), which is configured as an I-shaped sliding groove.

3. A fixed fire early warning device for underground coal mines according to claim 2, characterized in that, Two sets of movable components (17) are symmetrically arranged at the bottom of the top plate (11). The movable components (17) include a servo motor (18) and a push rod (19). The servo motor (18) is fixedly arranged at the bottom of the top plate (11). One end of the push rod (19) is connected to the servo motor (18), and the other end is connected to the bottom plate (15).

4. A fixed fire early warning device for underground coal mines according to claim 3, characterized in that, Fans (20) are installed on the left side plate (12) and the right side plate (13), respectively, and the fans (20) are connected to the controller (8).

5. A fixed fire early warning device for underground coal mines according to claim 4, characterized in that, The servo motor (18) is also electrically connected to the controller (8).

6. A fixed fire early warning device for underground coal mines according to claim 5, characterized in that, The sensor assembly (7) includes a temperature sensor (21), a smoke sensor (22), and a carbon monoxide sensor (23), which are electrically connected to the controller (8).

7. A fixed fire early warning device for underground coal mines according to claim 6, characterized in that, A reflective coating is sprayed on each surface of the fixed housing (3) and the sliding housing (4).

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