Early warning device for coal safety production

Abstract

The utility model is applicable to the technical field of early warning devices, and provides an early warning device for coal safety production, which comprises a mounting box, and a motor box is fixedly connected to the center of the interior of the mounting box. According to the early warning device for coal safety production, the combustible gas sensor, the loudspeaker, the mounting frame, the controller and the prompting mechanism are arranged, so that the purpose of monitoring flammable and combustible gas in a coal mine in real time is achieved, and when the flammable and combustible gas is excessive, mining workers can be automatically prompted, so that the safety of coal production is ensured. The early warning device for coal safety production improves the safety performance, and solves the problems that although an existing early warning device for coal safety production can guarantee clear sight of a camera and then can carry out stable monitoring and early warning work, a large amount of flammable and explosive gas exists in a coal mine, the purpose of detecting the flammable and explosive gas in the coal mine is not achieved, and the safety performance is poor. And potential safety hazards exist when workers exploit coal.

Description

Technical Field

[0001] The utility model belongs to the technical field of early warning devices, and in particular relates to an early warning device for safe coal production. Background Art

[0002] Coal, also known as coal, is a combustible black or brownish-black sedimentary rock that usually occurs in rock formations or veins in coal beds or seams.

[0003] The patent document with the prior art publication number CN 219309442 U provides a wireless monitoring and early warning device for coal mine production safety, which can automatically remove dust from the camera to ensure a clear line of sight for the camera, thereby enabling stable monitoring and early warning work. Although the current early warning device for coal mine production safety can ensure a clear line of sight for the camera, thereby enabling stable monitoring and early warning work, due to the presence of a large amount of flammable and explosive gases inside the coal mine, it does not have the purpose of detecting the flammable and explosive gases in the coal mine, resulting in safety hazards for workers while mining coal. Utility Model Content

[0004] The utility model provides an early warning device for coal production safety, aiming to solve the problem that the current early warning device for coal production safety can ensure that the camera has a clear line of sight and can thus perform stable monitoring and early warning work, but due to the presence of a large amount of flammable and explosive gases inside the coal mine, it does not have the purpose of detecting the flammable and explosive gases in the coal mine, resulting in safety hazards for workers while mining coal.

[0005] The utility model is implemented as follows: an early warning device for safe coal production comprises: an installation box, a motor box is fixedly connected to the inner center of the installation box, a glass cover is fixedly connected to the bottom of the motor box; combustible gas sensors are arranged on both sides of the glass cover, the combustible gas sensors are fixedly connected to the installation box, speakers are arranged at the four corners of the installation box, a mounting frame is fixedly connected to one side of the speaker, the mounting frame is fixedly connected to the installation box, a controller is arranged on the top of the motor box, and the controller is fixedly connected to the installation box; a prompt mechanism for giving an early warning by a red flashing light is arranged inside the glass cover.

[0006] Preferably, the prompt mechanism includes: an arc-shaped reflector is arranged inside the glass cover, a circuit board is fixedly connected to the concave surface of the arc-shaped reflector, and a plurality of LED lamp beads are fixedly connected to a side of the circuit board away from the arc-shaped reflector; a first rotating shaft is fixedly connected to the bottom end of the arc-shaped reflector, the bottom end of the first rotating shaft is rotatably connected to the glass cover, a second rotating shaft is fixedly connected to the top of the arc-shaped reflector, the top end of the second rotating shaft passes through the motor box and extends to the inside of the motor box; a power mechanism for controlling the self-rotation of the arc-shaped reflector is arranged on the outer surface of the second rotating shaft located inside the motor box.

[0007] Preferably, the power mechanism includes: the outer surface of the second rotating shaft located inside the motor box is fixedly connected to a first bevel gear, and a second bevel gear is meshed on one side of the first bevel gear; the second bevel gear is fixed to the outer surface of the motor output end, and the motor is fixedly connected to the motor box.

[0008] Preferably, the motor, LED lamp beads, speaker and combustible gas sensor are all electrically connected to the controller.

[0009] Preferably, the installation box is provided with a sound expansion hole near the speaker, and a dustproof net is fixedly connected to the inside of the sound expansion hole.

[0010] Preferably, the four corners of the top of the installation box are fixedly connected with a mounting plate, the interior of the mounting plate is provided with fixing bolts, and the fixing bolts are all threadedly connected to the ceiling.

[0011] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0012] By setting up combustible gas sensors, speakers, mounting brackets, controllers and prompting mechanisms, the purpose of real-time monitoring of flammable and explosive gases in coal mines can be achieved. When flammable and explosive gases are excessive, the mining workers can be automatically prompted, thereby improving safety performance and solving the problem that the current early warning device for coal production safety can ensure a clear line of sight for the camera and thus be able to perform stable monitoring and early warning work, but due to the presence of a large amount of flammable and explosive gases inside the coal mine, it does not have the purpose of detecting flammable and explosive gases in the coal mine, resulting in safety hazards for workers while mining coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the installation box of the utility model;

[0015] Figure 3This is a schematic diagram of the internal structure of the glass cover of the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of the arc-shaped reflective plate of the utility model.

[0017] In the figure: 1. Installation box; 2. Motor box; 3. Glass cover; 4. Combustible gas sensor; 5. Speaker; 6. Mounting bracket; 7. Controller; 8. Prompt mechanism; 9. Arc reflector; 10. Circuit board; 11. LED lamp beads; 12. First rotating shaft; 13. Second rotating shaft; 14. Power mechanism; 15. First bevel gear; 16. Second bevel gear; 17. Motor; 18. Sound expansion hole; 19. Dust net; 20. Installation plate; 21. Fixing bolts; 22. Ceiling. DETAILED DESCRIPTION

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0019] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] The utility model embodiment provides an early warning device for coal production safety, such as Figure 1-4 As shown, it includes: an installation box 1, a motor box 2 is fixedly connected to the inner center of the installation box 1, and a glass cover 3 is fixedly connected to the bottom of the motor box 2; combustible gas sensors 4 are arranged on both sides of the glass cover 3, and the combustible gas sensors 4 are fixedly connected to the installation box 1, speakers 5 are arranged at the four corners of the installation box 1, and a mounting frame 6 is fixedly connected to one side of the speaker 5, and the mounting frame 6 is fixedly connected to the installation box 1, a controller 7 is arranged on the top of the motor box 2, and the controller 7 is fixedly connected to the installation box 1; a prompt mechanism 8 for warning by red flashing light is arranged inside the glass cover 3.

[0021] It should be noted that the user can set the maximum threshold of the data through the controller 7, and then monitor the flammable and explosive gases in the coal mine in real time through the combustible gas sensor 4. The combustible gas sensor 4 transmits the monitoring data to the inside of the controller 7. When the data is greater than or equal to the maximum threshold inside the controller 7, the controller 7 starts the speaker 5 and the prompt mechanism 8, thereby achieving the purpose of real-time monitoring of the flammable and explosive gases in the coal mine by prompting the miners through sound and light, and when the flammable and explosive gases are excessive, the miners can be automatically prompted, thereby improving the safety performance and solving the problem that the current early warning device for coal production safety can ensure that the camera has a clear line of sight and can perform stable monitoring and early warning work, but due to the presence of a large amount of flammable and explosive gases inside the coal mine, it does not have the purpose of detecting the flammable and explosive gases in the coal mine, resulting in safety hazards for workers while mining coal.

[0022] In a further preferred embodiment of the present invention, Figure 1 , 3 As shown in Figure 4, the prompt mechanism 8 includes: an arc-shaped reflector 9 is arranged inside the glass cover 3, the concave surface of the arc-shaped reflector 9 is fixedly connected with a circuit board 10, and a side of the circuit board 10 away from the arc-shaped reflector 9 is fixedly connected with a plurality of LED lamp beads 11; the bottom end of the arc-shaped reflector 9 is fixedly connected with a first rotating shaft 12, the bottom end of the first rotating shaft 12 is rotatably connected to the glass cover 3, the top of the arc-shaped reflector 9 is fixedly connected with a second rotating shaft 13, the top end of the second rotating shaft 13 passes through the motor box 2 and extends to the inside of the motor box 2; the outer surface of the second rotating shaft 13 located inside the motor box 2 is provided with a power mechanism 14 for controlling the arc-shaped reflector 9 to rotate.

[0023] In this embodiment, when the monitoring data of the combustible gas sensor 4 is greater than or equal to the maximum threshold value inside the controller 7, the controller 7 starts the LED lamp bead 11 on the circuit board 10, so that the LED lamp bead 11 emits red light, and controls the arc reflector 9 to rotate through the power mechanism 14, so that miners in all directions can see the flashing red light.

[0024] In a further preferred embodiment of the present invention, Figure 1 , 2 As shown, the power mechanism 14 includes: the outer surface of the second rotating shaft 13 located inside the motor box 2 is fixedly connected to the first bevel gear 15, and a second bevel gear 16 is meshed on one side of the first bevel gear 15; the second bevel gear 16 is fixed to the outer surface of the output end of the motor 17, and the motor 17 is fixedly connected to the motor box 2.

[0025] In this embodiment, the motor 17 is started, and the output end of the motor 17 drives the second bevel gear 16, the second bevel gear 16 drives the first bevel gear 15, the first bevel gear 15 drives the second rotating shaft 13, the second rotating shaft 13 drives the arc reflector 9, and the arc reflector 9 rotates by the cooperation of the first rotating shaft 12.

[0026] In a further preferred embodiment of the present invention, Figure 1 As shown, the motor 17 , the LED lamp bead 11 , the speaker 5 and the combustible gas sensor 4 are all electrically connected to the controller 7 .

[0027] In this embodiment, when the detection data is greater than the maximum threshold value inside the controller 7, the controller 7 starts the motor 17, the LED lamp bead 11 and the speaker 5 at the same time, so that the device reminds the miners by making sounds and emitting flashing red light at the same time, thereby improving practicality.

[0028] In a further preferred embodiment of the present invention, Figure 1 , 2 As shown, the installation box 1 is provided with a sound expansion hole 18 near the speaker 5 , and a dustproof net 19 is fixedly connected inside the sound expansion hole 18 .

[0029] In this embodiment, the dustproof performance at the sound expansion hole 18 is improved to prevent a large amount of dust from entering the interior of the loudspeaker 5 and causing damage to the loudspeaker 5 .

[0030] In a further preferred embodiment of the present invention, Figure 1 , 2 As shown, the four corners of the top of the installation box 1 are fixedly connected with a mounting plate 20 , and the interior of the mounting plate 20 is provided with fixing bolts 21 , and the fixing bolts 21 are threadedly connected to the ceiling 22 .

[0031] In this embodiment, the stability of the device when installed in a coal mine is improved.

[0032] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0033] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0034] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0035] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. An early warning device for coal production safety, comprising: An installation box (1), wherein a motor box (2) is fixedly connected to the center of the installation box (1), and a glass cover (3) is fixedly connected to the bottom of the motor box (2); The invention is characterized in that combustible gas sensors (4) are arranged on both sides of the glass cover (3), the combustible gas sensors (4) are fixedly connected to the installation box (1), speakers (5) are arranged at the four corners of the installation box (1), one side of the speaker (5) is fixedly connected to a mounting frame (6), the mounting frame (6) is fixedly connected to the installation box (1), and a controller (7) is arranged on the top of the motor box (2), and the controller (7) is fixedly connected to the installation box (1); A prompting mechanism (8) for giving an early warning by means of a red flashing light is arranged inside the glass cover (3).

2. An early warning device for coal production safety according to claim 1, characterized in that: The prompting mechanism (8) comprises: An arc-shaped reflector (9) is arranged inside the glass cover (3); a circuit board (10) is fixedly connected to the concave surface of the arc-shaped reflector (9); and a plurality of LED lamp beads (11) are fixedly connected to a surface of the circuit board (10) away from the arc-shaped reflector (9); The bottom end of the arc-shaped reflective plate (9) is fixedly connected to a first rotating shaft (12), the bottom end of the first rotating shaft (12) is rotatably connected to the glass cover (3), the top end of the arc-shaped reflective plate (9) is fixedly connected to a second rotating shaft (13), the top end of the second rotating shaft (13) passes through the motor box (2) and extends to the inside of the motor box (2); The outer surface of the second rotating shaft (13) located inside the motor box (2) is provided with a power mechanism (14) for controlling the arc-shaped reflective plate (9) to rotate.

3. An early warning device for coal production safety as claimed in claim 2, characterized in that: The power mechanism (14) comprises: The outer surface of the second rotating shaft (13) located inside the motor box (2) is fixedly connected to a first bevel gear (15), and a second bevel gear (16) is meshed on one side of the first bevel gear (15); The second bevel gear (16) is fixed to the outer surface of the output end of the motor (17), and the motor (17) is fixedly connected to the motor box (2).

4. An early warning device for coal production safety as claimed in claim 3, characterized in that: The motor (17), the LED lamp bead (11), the speaker (5) and the combustible gas sensor (4) are all electrically connected to the controller (7).

5. The early warning device for coal production safety according to claim 1, characterized in that: The installation box (1) is provided with a sound expansion hole (18) near the speaker (5), and a dustproof net (19) is fixedly connected to the inside of the sound expansion hole (18).

6. The early warning device for coal production safety according to claim 1, characterized in that: The four corners of the top of the installation box (1) are fixedly connected to a mounting plate (20), and the interior of the mounting plate (20) is provided with fixing bolts (21), and the fixing bolts (21) are threadedly connected to the ceiling (22).

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