Coal mine underground safety early warning equipment

Abstract

The utility model relates to the technical field of underground coal mine early warning equipment, and discloses underground coal mine safety early warning equipment which comprises a fixing base, a lower supporting disc, an upper supporting disc, a supporting vertical plate, an isolation transverse plate, a first motor, a transmission shaft, an early warning sensor and a dustproof sweeping mechanism. An isolation transverse plate is fixed to the middle of the interior of the fixing base, the first motor is arranged in a fixing base mounting groove and located below the isolation transverse plate, a transmission shaft is fixed to the output end of the first motor, and a lower supporting disc and an upper supporting disc are arranged on the top face of the fixing base from bottom to top; according to the underground coal mine safety early warning equipment, the dust accumulation problem of underground equipment is effectively solved through the dustproof sweeping mechanism comprising a second motor, a transmission rod, a dustproof net, a first gear, a second gear, a toothed chain and a brush, and the precision and long-term stable operation of the early warning sensor are guaranteed.

Description

Technical Field

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

[0002] Coal mines are complex underground working environments and are places where safety accidents are very likely to occur. Coal mine safety early warning equipment is a very effective disaster early warning device that can protect the lives of coal miners.

[0003] Common underground mine accidents include gas explosions and oxygen deficiency asphyxiation, posing significant safety hazards. To ensure the safety of coal miners, underground safety early warning equipment is crucial. However, most existing underground safety early warning devices are single-function, only capable of simple gas concentration monitoring and lacking dust prevention and cleaning capabilities. This leads to dust accumulation on the equipment, affecting the accuracy and lifespan of the early warning sensors. Furthermore, equipment maintenance is complex, requiring regular manual cleaning, increasing worker workload and safety risks. Therefore, designing an underground safety early warning device with dust prevention and cleaning capabilities, capable of real-time monitoring of the underground environment, timely warning of potential safety hazards, and automatic dust removal, improves early warning accuracy and extends equipment lifespan, has significant practical importance and application value. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a coal mine underground safety early warning device that combines dust prevention and cleaning with multi-parameter monitoring, solving the problems of easy dust accumulation and limited early warning accuracy in coal mine underground safety early warning devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A coal mine underground safety early warning device includes a fixed base, a lower support disc, an upper support disc, support vertical plates, an isolation horizontal plate, a first motor, a transmission shaft, an early warning sensor, and a dust prevention and cleaning mechanism. The fixed base has an internal mounting groove, and an isolation horizontal plate is fixed in the middle of the fixed base. The first motor is located in the mounting groove of the fixed base below the isolation horizontal plate. The output end of the first motor is fixed with a transmission shaft. The top surface of the fixed base has a lower support disc and an upper support disc arranged from bottom to top. Two symmetrically distributed support vertical plates are fixed between the lower support disc and the upper support disc. The early warning sensor is located between the two support vertical plates. The dust prevention and cleaning mechanism is located between the lower support disc and the upper support disc.

[0007] The dust-proof cleaning mechanism includes a second motor, a transmission rod, a dustproof net, a first gear, a second gear, a gear chain, and a brush. Two dustproof nets are arranged oppositely between the two supporting vertical plates. The inner walls of the four supporting vertical plates located outside the dustproof nets are fixed with upper and lower distributed second gears and first gears. Corresponding gear chains are arranged around the four sets of first gears and second gears. A brush is arranged between the outer sides of two gear chains. A transmission rod is inserted between the two opposite first gears. One end of the transmission rod passes through the supporting vertical plate and is fixed to the output end of the second motor.

[0008] As a preferred embodiment of this utility model, the end of the transmission rod away from the second motor is fixed to a support vertical plate away from the second motor.

[0009] As a preferred embodiment of this utility model, a brush fixing plate is fixed between the outer sides of the two toothed chains, a brush is fixed on the side of the brush fixing plate away from the toothed chains, and a fixing frame is fixed around the dustproof net.

[0010] As a preferred embodiment of this utility model, the early warning sensor is disposed between the lower support disc and the upper support disc and between the two dustproof nets. The early warning sensor consists of a gas concentration sensor, an oxygen concentration sensor and a temperature and humidity sensor.

[0011] As a preferred technical solution of this utility model, the end of the transmission shaft away from the first motor passes through the middle of the isolation plate and is fixed to the middle of the lower support disk and the upper support disk in sequence with the top surface of the fixed seat. A ring of balls is provided between the lower support disk and the fixed seat. The bottom surface of the lower support disk and the top surface of the fixed seat are both provided with raceways corresponding to the balls.

[0012] As a preferred embodiment of this utility model, four symmetrically distributed fixing blocks are fixed to the bottom edge of the fixing base, and bolts are fixed on the fixing blocks.

[0013] As a preferred embodiment of this utility model, a battery and a microprocessor are installed in the mounting groove of the fixed base above the isolation cross plate, and a warning light and a warning horn are installed on the top of the upper support disc.

[0014] Compared with the prior art, this utility model provides a safety early warning device for underground coal mines, which has the following beneficial effects:

[0015] This type of underground safety early warning device for coal mines effectively solves the problem of dust accumulation in underground equipment through a dust-proof cleaning mechanism including a second motor, transmission rod, dustproof net, first gear, second gear, gear chain, and brush. This ensures the accuracy and long-term stable operation of the early warning sensor. Simultaneously, the multi-parameter monitoring capability of the early warning sensor improves the accuracy and comprehensiveness of the warnings. The ball bearing design enhances the rotational flexibility of the lower support disc and reduces wear. The fixing block and bolt structure facilitates equipment installation and fixation. The battery and microprocessor ensure independent operation of the equipment. The warning light and warning horn provide an intuitive and rapid alarm method, comprehensively improving the safety level of underground coal mines. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front view of this utility model;

[0017] Figure 2 This is a side view structural diagram of the present invention;

[0018] Figure 3 This is a top view structural diagram of the present invention.

[0019] In the diagram: 1. Fixed base; 2. Lower support disc; 3. Upper support disc; 4. Support vertical plate; 5. Isolation horizontal plate; 6. First motor; 7. Drive shaft; 8. Ball bearing; 9. Second motor; 10. Drive rod; 11. Dustproof net; 12. Fixed frame; 13. Warning sensor; 14. First gear; 15. Second gear; 16. Gear chain; 17. Brush; 18. Brush fixing plate; 19. Warning light; 20. Warning horn. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "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 utility model 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 utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figure 1-3 A coal mine underground safety early warning device includes a fixed base 1, a lower support disc 2, an upper support disc 3, a support vertical plate 4, an isolation horizontal plate 5, a first motor 6, a transmission shaft 7, an early warning sensor 13, and a dust prevention and cleaning mechanism. The fixed base 1 has an installation groove inside, and the isolation horizontal plate 5 is fixed in the middle of the fixed base 1. The first motor 6 is located in the installation groove of the fixed base 1 below the isolation horizontal plate 5. The output end of the first motor 6 is fixed with the transmission shaft 7. The top surface of the fixed base 1 is provided with the lower support disc 2 and the upper support disc 3 from bottom to top. Two symmetrically distributed support vertical plates 4 are fixed between the lower support disc 2 and the upper support disc 3. The early warning sensor 13 is located between the two support vertical plates 4. The dust prevention and cleaning mechanism is located between the lower support disc 2 and the upper support disc 3.

[0024] The dust removal and cleaning mechanism includes a second motor 9, a transmission rod 10, a dustproof net 11, a first gear 14, a second gear 15, a toothed chain 16, and a brush 17. Two dustproof nets 11 are arranged opposite each other between the two supporting vertical plates 4. The second gear 15 and the first gear 14 are fixed on the inner wall of the four supporting vertical plates 4 outside the dustproof nets 11. Corresponding toothed chains 16 are arranged around the four sets of first gears 14 and second gears 15. A brush 17 is arranged between the outer sides of the two toothed chains 16. The transmission rod 10 is inserted between the two opposite first gears 14. One end of the transmission rod 10 passes through the supporting vertical plate 4 and is fixed to the output end of the second motor 9.

[0025] In this embodiment, the end of the transmission rod 10 away from the second motor 9 is fixed to the support vertical plate 4 away from the second motor 9. This design ensures the stability of the transmission rod 10 and prevents shaking or deviation caused by uneven force during operation, thereby ensuring the overall smooth operation of the dust removal and cleaning mechanism.

[0026] In this embodiment, a brush fixing plate 18 is fixed between the outer sides of the two toothed chains 16, and a brush 17 is fixed on the side of the brush fixing plate 18 away from the toothed chains 16. A fixing frame 12 is fixed around the dustproof net 11. The fixing frame 12 enhances the structural strength of the dustproof net 11 and prevents it from deforming or being damaged during use.

[0027] In this embodiment, the early warning sensor 13 is set between the lower support disk 2 and the upper support disk 3 and between the two dustproof nets 11. The early warning sensor 13 is composed of a gas concentration sensor, an oxygen concentration sensor and a temperature and humidity sensor. The combination of multiple sensors enables the equipment to more accurately judge the safety status of the coal mine.

[0028] In this embodiment, the end of the drive shaft 7 away from the first motor 6 passes through the middle of the isolation plate and is fixed to the middle of the lower support disk 2 and the upper support disk 3 in sequence with the top surface of the fixed base 1. A ring of balls 8 is provided between the lower support disk 2 and the fixed base 1. The bottom surface of the lower support disk 2 and the top surface of the fixed base 1 are provided with raceways corresponding to the balls 8. The cooperation between the balls 8 and the raceways greatly reduces friction and wear, and improves the operating efficiency and life of the equipment.

[0029] In this embodiment, four symmetrically distributed fixing blocks are fixed to the bottom edge of the fixing base 1, and bolts are fixed on the fixing blocks. This fixing method enables the equipment to be firmly installed in a suitable position in the coal mine, and it is not easy to shake or fall off, thus ensuring the stability and safety of the equipment.

[0030] In this embodiment, a battery and a microprocessor are installed in the mounting slot of the fixed base 1 above the isolation horizontal plate 5. A warning light 19 and a warning horn 20 are installed on the top of the upper support disc. The warning light 19 and the warning horn 20 provide an intuitive and rapid alarm method. When abnormal data is detected, an alarm can be issued immediately to remind staff to take appropriate measures.

[0031] This type of underground safety early warning device for coal mines effectively solves the problem of dust accumulation in underground equipment through a dust-proof cleaning mechanism including a second motor 9, a transmission rod 10, a dustproof net 11, a first gear 14, a second gear 15, a gear chain 16, and a brush 17. This ensures the accuracy and long-term stable operation of the early warning sensor 13. Simultaneously, the multi-parameter monitoring capabilities of the early warning sensor 13 (gas, oxygen, temperature, and humidity) enhance the accuracy and comprehensiveness of the early warning. The ball bearing 8 design enhances the rotational flexibility of the lower support disc 2 and reduces wear. The fixing block and bolt structure facilitates equipment installation and fixation. The battery and microprocessor ensure independent operation of the equipment. The early warning light 19 and the early warning horn 20 provide an intuitive and rapid alarm method, comprehensively improving the safety level of underground coal mines.

[0032] Working principle:

[0033] The fixed base 1 is installed in a suitable position in the coal mine through a fixing block and bolt structure on the bottom edge. The first motor 6 is started in the mounting groove of the fixed base 1, and drives the lower support disc 2 and the upper support disc 3 to rotate through the transmission shaft 7. At the same time, the ball bearings 8 roll in the raceway to reduce friction and wear. The early warning sensor 13 continuously monitors the gas concentration, oxygen concentration and temperature and humidity. The data is transmitted in real time to the microprocessor in the mounting groove of the fixed base 1 for analysis. When abnormal data is detected, the microprocessor triggers the early warning mechanism, controls the early warning light 19 to flash and the early warning horn 20 to sound an alarm. When the equipment is working, the second motor 9 will be started periodically, and drive the brush 17 to move on the surface of the dustproof net 11 through the transmission rod 10, the first gear 14, the second gear 15 and the toothed chain 16 to clean the accumulated dust, ensuring the transparency of the dustproof net 11 and the monitoring accuracy of the early warning sensor 13.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coal mine underground safety early warning device, comprising a fixed base (1), a lower support disc (2), an upper support disc (3), a support vertical plate (4), an isolation horizontal plate (5), a first motor (6), a transmission shaft (7), an early warning sensor (13), and a dust removal mechanism. The fixed base (1) has an installation groove inside. An isolation horizontal plate (5) is fixed in the middle of the fixed base (1). The first motor (6) is located in the installation groove of the fixed base (1) below the isolation horizontal plate (5). The output end of the first motor (6) is fixed with a transmission shaft (7). The top surface of the fixed base (1) is provided with a lower support disc (2) and an upper support disc (3) from bottom to top. Two symmetrically distributed support vertical plates (4) are fixed between the lower support disc (2) and the upper support disc (3). The early warning sensor (13) is located between the two support vertical plates (4). The dust removal mechanism is located between the lower support disc (2) and the upper support disc (3). characterized in that The dust removal and cleaning mechanism includes a second motor (9), a transmission rod (10), a dustproof net (11), a first gear (14), a second gear (15), a toothed chain (16), and a brush (17). Two dustproof nets (11) are arranged opposite to each other between the two support vertical plates (4). The inner walls of the four support vertical plates (4) located outside the dustproof nets (11) are fixed with the upper and lower distributed second gears (15) and first gears (14). Corresponding toothed chains (16) are arranged around the four sets of first gears (14) and second gears (15). A brush (17) is arranged between the outer sides of the two toothed chains (16). The transmission rod (10) is inserted between the two opposite first gears (14). One end of the transmission rod (10) passes through the support vertical plate (4) and is fixed to the output end of the second motor (9).

2. The coal mine underground safety early warning device according to claim 1, characterized in that: The end of the transmission rod (10) away from the second motor (9) is fixed to the support vertical plate (4) away from the second motor (9).

3. The coal mine underground safety early warning device according to claim 1, characterized in that: A brush fixing plate (18) is fixed between the outer sides of the two toothed chains (16), and a brush (17) is fixed on the side of the brush fixing plate (18) away from the toothed chains (16). A fixing frame (12) is fixed around the dustproof net (11).

4. The underground safety early warning device for coal mines according to claim 1, characterized in that: The early warning sensor (13) is set between the lower support disk (2) and the upper support disk (3) and between the two dustproof nets (11). The early warning sensor (13) consists of a gas concentration sensor, an oxygen concentration sensor and a temperature and humidity sensor.

5. The coal mine underground safety early warning device according to claim 1, characterized in that: The end of the drive shaft (7) away from the first motor (6) passes through the middle of the isolation plate and is fixed to the middle of the lower support disc (2) and the upper support disc (3) in sequence with the top surface of the fixed seat (1). A ring of balls (8) is provided between the lower support disc (2) and the fixed seat (1). The bottom surface of the lower support disc (2) and the top surface of the fixed seat (1) are both provided with raceways corresponding to the balls (8).

6. The coal mine underground safety early warning device according to claim 1, characterized in that: The bottom edge of the fixing base (1) is fixed with four axis-symmetrically distributed fixing blocks, and bolts are fixed on the fixing blocks.

7. The coal mine underground safety early warning device according to claim 1, characterized in that: The fixed seat (1) installation groove is above the isolation cross plate (5) and is provided with a battery and a microprocessor, and the top of the upper support disc is provided with a warning light (19) and a warning horn (20).

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