Intelligent automatic fire preventing and extinguishing system for mine

Abstract

The invention relates to the technical field of fire extinguishing systems, in particular to a mine intelligent automatic fire preventing and extinguishing system which comprises a controller, an audible and visual alarm is installed on the controller, an evacuation indicating lamp is fixedly installed on the audible and visual alarm, a spraying device is fixedly installed at one end of the controller, and a fire extinguishing mechanism is installed on the spraying device. The fire extinguishing mechanism comprises a controller, a flame sensor is fixedly installed at the other end of the controller, a smoke sensor is installed on the flame sensor, a temperature sensor is installed on the smoke sensor, and a carbon monoxide sensor is installed on the temperature sensor. The displacement component is slidably inserted into the top end of the guiding device, the guiding device comprises button switches and a guiding transverse frame, and the button switches are fixedly installed at the two ends of the top of the guiding transverse frame. And through the arrangement of the fire extinguishing mechanism, the purposes of reciprocating displacement and uniform inert gas injection of the mine fire extinguishing system are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fire extinguishing systems, in particular to an intelligent automatic fire prevention and extinguishing system for mines. Background Art

[0002] Due to the complex environment in which coal mines are located, there are many external factors that affect actual mining, resulting in frequent fires during coal mine mining operations, posing a serious threat to the lives of miners. The automatic fire extinguishing system is an important part of coal mine safety production operations. In recent years, with the continuous improvement of society's requirements for safe operations underground in coal mines, the automatic fire extinguishing system has developed from a simple sprinkler system to an automatic fire prevention and extinguishing system. The technology of the automatic fire prevention and extinguishing system mainly focuses on early fire detection, rapid response, and the research and development of environmentally friendly fire extinguishing agents. This system can quickly control the fire in the early stages of a fire and reduce property losses and casualties.

[0003] A fire extinguishing system is a combination of equipment used to control and extinguish fires. It achieves this purpose through different fire extinguishing media and mechanisms based on the characteristics of the fire and site requirements. This type of system is composed of multiple fire extinguisher devices, which are interconnected through connectors according to pre-arranged rules to form a whole. They can start the fire extinguisher devices in the system individually, multiple times, or simultaneously according to the set activation method (such as temperature sensing, smoke sensing, etc.) to achieve a fire extinguishing effect that a single fire extinguisher device cannot achieve alone.

[0004] At present, the mine fire extinguishing systems on the market can only extinguish fires in local areas due to the use of fixed-point coverage fire extinguishing. At the same time, due to limited energy, it is impossible to extinguish fires in a large area, resulting in the inability of existing mine fire extinguishing systems to perform reciprocating displacement and uniform inert gas spraying functions. Therefore, a device is needed to improve the above problems. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides an intelligent automatic fire prevention and extinguishing system for mines.

[0006] The technical solution adopted by the present invention to solve its technical problems is: an intelligent automatic fire prevention and extinguishing system for mines, comprising a controller, a sound and light alarm is installed on the controller, an evacuation indicator light is fixedly installed on the sound and light alarm, a sprinkler device is fixedly installed on one end of the controller, a fire extinguishing mechanism is installed on the sprinkler device, a flame sensor is fixedly installed on the other end of the controller, a smoke sensor is installed on the flame sensor, a temperature sensor is installed on the smoke sensor, and a carbon monoxide sensor is installed on the temperature sensor.

[0007] Specifically, the fire extinguishing mechanism also includes a guide device and a displacement component, the displacement component is slidably inserted into the top of the guide device, the guide device includes a button switch and a guide cross frame, the button switch is fixedly installed at the top two ends of the guide cross frame, the rear end of the guide cross frame is fixedly installed with a first rack, and the rear end of the first rack is fixedly installed with two mounting plates.

[0008] Specifically, the displacement component includes a conveying device, a positioning device, an injection device and a connecting device. The conveying device is slidably placed inside the connecting device, the positioning device is fixedly installed on the top of the connecting device, the injection device is slidably inserted into the top of the connecting device, and the injection device is located in front of the positioning device.

[0009] Specifically, the conveying device includes a nitrogen cylinder, a connecting pipe and a limiting plate, wherein the connecting pipe is fixedly installed at the front end top of the nitrogen cylinder, the limiting plate is fixedly installed at the inner end of the connecting pipe away from the nitrogen cylinder, a discharge pipe is fixedly installed at the inner center of the limiting plate, and a sealing plug is slidably inserted at the end of the discharge pipe close to the nitrogen cylinder, and six return springs are fixedly installed between the sealing plug and the limiting plate, and the return springs are distributed in a ring shape;

[0010] When the sealing plug is squeezed by the contact air pipe, the sealing plug can be separated from the discharge pipe, and the gas inside the nitrogen cylinder can enter the inside of the contact air pipe.

[0011] Specifically, the alignment device includes a supporting top frame, an L-shaped gas cylinder, a first piston rod and a first synchronization rod, the L-shaped gas cylinder is equidistantly fixedly installed on the inner top end of the supporting top frame, the first piston rod is slidably inserted in the inner bottom end of the L-shaped gas cylinder, the first synchronization rod is fixedly installed on the bottom end of the first piston rod, a second piston rod is slidably inserted in the rear end of the L-shaped gas cylinder, a second synchronization rod is fixedly installed at the rear end of the second piston rod, a contact air pipe is fixedly installed on the front end top of the second synchronization rod, and a hose is fixedly installed on the front end of the contact air pipe;

[0012] When the first synchronous rod moves upward, the second piston rod can be driven to move toward the rear end, so that the contact air pipe can be inserted into the interior of the discharge pipe.

[0013] Specifically, the spray device includes a vertical rod, a displacement sleeve and a first gear, wherein the displacement sleeve is fixedly mounted on the top of the vertical rod, the first gear is rotatably mounted on the bottom front end of the displacement sleeve, and a nozzle is fixedly mounted on the top of the first gear;

[0014] When the vertical rod drives the displacement sleeve and the first gear to move, the first gear can rotate along the surface of the second rack.

[0015] Specifically, the connecting device includes a supporting cover plate, a placing base, an H-shaped key and a second rack, the second rack is fixedly mounted on the top front end of the supporting cover plate, a guide rod is symmetrically fixedly mounted on the top end of the supporting cover plate, a driving motor is fixedly mounted inside the supporting cover plate, the H-shaped key is fixedly mounted on the bottom front end of the supporting cover plate, the placing base is fixedly mounted on the rear bottom of the supporting cover plate, a second gear is fixedly mounted on the rear center of the driving motor, a disc is fixedly mounted on the rear end of the second gear, and a limiting round rod is fixedly mounted on the side end of the disc away from the second gear;

[0016] When the driving motor is started, the disc can be driven to rotate, so that the limiting round rod can drive the vertical rod to move left and right.

[0017] Specifically, the nitrogen cylinder is slidably placed inside the placement base, the H-type key is slidably inserted into the inside of the guide cross frame, the second gear is meshed with the first rack, the displacement sleeve is slidably sleeved on the guide rod, the first gear is meshed with the second rack, the limiting round rod is slidably inserted into the inside of the vertical rod, the end of the hose away from the contact air pipe is connected to the rear end of the nozzle, and the support top frame is fixedly installed on the top of the support covering plate.

[0018] Specifically, a card slot is provided at the inner bottom end of the guide cross frame, the connecting pipe is communicated with the inside of the nitrogen cylinder, the bottom end of the first synchronization rod is equidistantly fixed with protrusions, and the top ends of both sides of the displacement sleeve and the bottom ends of both sides of the protrusions are inclined at 45°, the interior of the L-shaped gas cylinder is hollow, and a closed cavity is formed between the first piston rod, the L-shaped gas cylinder and the second piston rod.

[0019] Specifically, a through hole is opened on the outer circle of the contact air pipe away from the hose, and the through holes are distributed in a ring shape, the contact air pipe is horizontally aligned with the discharge pipe, a movable groove is opened inside the vertical rod, circular holes compatible with the guide rods are symmetrically opened inside the displacement sleeve, and a placement groove is opened inside the placement base.

[0020] Beneficial effects of the present invention:

[0021] First, when the present invention is started, the driving motor can drive the second gear to move on the first rack, so that the nozzle can be moved back and forth. At the same time, when the first synchronization rod is squeezed by the displacement sleeve, the first piston rod can be driven to enter the interior of the L-shaped gas cylinder, so that the second synchronization rod can drive the contact air pipe to enter the interior of the discharge pipe, so that the nitrogen cylinder can communicate with the contact air pipe. At this time, the inert gas inside the nitrogen cylinder can enter the interior of the nozzle through the contact air pipe and the hose and be discharged outward, so that the nozzle can work in different areas.

[0022] Second, when the vertical rod is displaced, the present invention can drive the first gear to displace along the surface of the second rack, so that the nozzle can rotate, so that the nozzle sprays the inert gas to the periphery while rotating, and when the second gear rotates, the disc can be driven to rotate cyclically, so that the limiting round rod can intermittently drive the vertical rod to displace left and right, so that the nozzle can rotate left and right, and the work of evenly spraying the inert gas is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the second embodiment of the fire extinguishing mechanism of the present invention from the front perspective;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the guide device of the present invention from the front perspective;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the displacement component in the present invention from a front perspective;

[0028] Figure 5 It is a partial cutaway schematic diagram of the conveying device in the present invention;

[0029] Figure 6 For the present invention Figure 5 A local enlarged schematic diagram of point A;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the alignment device in the present invention from a front perspective;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the spray device in the present invention from the front perspective;

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the connecting device of the present invention from the front perspective;

[0033] Fig.10 It is a schematic diagram of the three-dimensional structure of the connecting device in the present invention from a rear perspective.

[0034] In the figure: 1-sprinkler, 2-fire extinguishing mechanism, 3-controller, 4-sound and light alarm, 5-evacuation indicator light, 6-flame sensor, 7-smoke sensor, 8-temperature sensor, 9-carbon monoxide sensor, 10-guide device, 11-displacement component, 12-button switch, 13-guide cross frame, 14-first rack, 15-mounting plate, 16-conveying device, 17-alignment device, 18-injection device, 19-connecting device, 20-nitrogen cylinder, 21-connecting pipe, 22-sealed plug, 23-discharge Tube, 24-limiting plate, 25-reset spring, 26-hose, 27-L-type air cylinder, 28-first synchronization rod, 29-first piston rod, 30-support top frame, 31-second synchronization rod, 32-second piston rod, 33-contact air pipe, 34-nozzle, 35-displacement sleeve, 36-vertical rod, 37-first gear, 38-placing base frame, 39-support covering plate, 40-guide rod, 41-second rack, 42-drive motor, 43-H-type key, 44-second gear, 45-limiting round rod, 46-disc. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0036] The present invention is further described below in conjunction with the accompanying drawings.

[0037] Example 1

[0038] like Figure 1 As shown, an intelligent automatic fire prevention and extinguishing system for mines of the present invention comprises a controller 3, on which a sound and light alarm 4 is installed, on which an evacuation indicator light 5 is fixedly installed, on one end of the controller 3 a sprinkler device 1 is fixedly installed, on which a fire extinguishing mechanism 2 is installed, on which a flame sensor 6 is fixedly installed on the other end of the controller 3, on which a smoke sensor 7 is installed, on which a temperature sensor 8 is installed, and on which a carbon monoxide sensor 9 is installed.

[0039] The working principle of embodiment 1 is as follows: when in use, the flame sensor 6 monitors whether there is ultraviolet light in the spectrum range of 180-260nm in the central substation based on the UV flame spectrum detection principle, the detection angle is ≥120 degrees, the response time is ≤5ms, and the detection distance is ≥25m. The smoke sensor 7 monitors whether the smoke concentration in the central substation exceeds 5%obs / m based on the gas sensitive resistor change principle. The temperature sensor 8 monitors the temperature changes of important electrical equipment, high-load cables, and the environment in the central substation at multiple points through digital sensor elements based on the thermal resistor change principle. The carbon monoxide sensor 9 monitors whether the concentration of toxic and harmful gases in the central substation exceeds the human safety limit of 24ppm based on the gas sensitive resistor change principle, or monitors whether there is a potential gas explosion risk in the central substation. The sound and light alarm 4 reminds the personnel in the central substation of a fire, On-site personnel need to evacuate immediately. The evacuation indicator light 5 indicates the direction of the safe passage for personnel in the central substation to guide them to escape quickly. When the fire extinguishing mechanism 2 is started, it should be able to completely submerge the central substation to achieve the purpose of rapid fire extinguishing. The spraying lag time of the fire extinguishing mechanism 2 is ≤15ms, the spraying efficiency is ≥90%, and the spraying completion time is ≤150ms. The controller 3 is used as the control host of the system to interact with various connected sensors and process various collected parameters. Through big data analysis, high-speed processing, and internal algorithm optimization, differentiated processing is performed according to different situations. In different scenarios, the controller 3 can independently control the output of the evacuation indicator light 5, the output of the sound and light alarm 4, the output of the sprinkler device 1, and the output of the fire extinguishing mechanism 2. The controller 3 can upload various real-time data, alarm events, manual operations and other information to the remote monitoring center through Ethernet or other industrial ring networks.

[0040] Example 2

[0041] On the basis of Example 1, Figure 2 and Figure 3 As shown, the fire extinguishing mechanism 2 also includes a guide device 10 and a displacement component 11. The displacement component 11 is slidably inserted into the top of the guide device 10. The guide device 10 includes a button switch 12 and a guide cross frame 13. The button switch 12 is fixedly mounted on both ends of the top of the guide cross frame 13. A first rack 14 is fixedly mounted on the rear end of the guide cross frame 13. Two mounting plates 15 are fixedly mounted on the rear end of the first rack 14.

[0042] like Figure 4The displacement component 11 includes a conveying device 16, an alignment device 17, an injection device 18 and a connecting device 19. The conveying device 16 is slidably placed inside the connecting device 19, the alignment device 17 is fixedly installed on the top of the connecting device 19, and the injection device 18 is slidably inserted into the top of the connecting device 19. The injection device 18 is located in front of the alignment device 17, which can support the conveying device 16, the alignment device 17 and the injection device 18 to work.

[0043] like Figure 5 and Figure 6 The conveying device 16 includes a nitrogen cylinder 20, a connecting pipe 21 and a limiting plate 24. The connecting pipe 21 is fixedly installed at the front end top of the nitrogen cylinder 20. The limiting plate 24 is fixedly installed at the inner end of the connecting pipe 21 away from the nitrogen cylinder 20. A discharge pipe 23 is fixedly installed at the inner center of the limiting plate 24. A sealing plug 22 is slidably inserted at the end of the discharge pipe 23 close to the nitrogen cylinder 20. Six return springs 25 are fixedly installed between the sealing plug 22 and the limiting plate 24, and the return springs 25 are distributed in an annular shape. The elasticity of the return spring 25 drives the sealing plug 22 to seal the inside of the discharge pipe 23 to prevent the inert gas inside the nitrogen cylinder 20 from leaking when it remains in a normal state.

[0044] When the sealing plug 22 is squeezed by the contact gas pipe 33 , the sealing plug 22 can be separated from the discharge pipe 23 , and the gas inside the nitrogen cylinder 20 can enter the inside of the contact gas pipe 33 .

[0045] like Figure 7 The alignment device 17 includes a supporting top frame 30, an L-shaped air cylinder 27, a first piston rod 29 and a first synchronization rod 28. The L-shaped air cylinder 27 is fixedly installed at an equidistant position on the inner top of the supporting top frame 30. The first piston rod 29 is slidably inserted into the inner bottom end of the L-shaped air cylinder 27. The first synchronization rod 28 is fixedly installed at the bottom end of the first piston rod 29. A second piston rod 32 is slidably inserted into the rear end of the L-shaped air cylinder 27. A second synchronization rod 31 is fixedly installed at the rear end of the second piston rod 32. A contact air pipe 33 is fixedly installed at the top of the front end of the second synchronization rod 31. A hose 26 is fixedly installed at the front end of the contact air pipe 33. The weight of the first synchronization rod 28 is greater than the total weight of the second piston rod 32, the second synchronization rod 31 and the contact air pipe 33, so that the first synchronization rod 28 will move downward when it loses the restriction of the displacement sleeve 35.

[0046] When the first synchronization rod 28 moves upward, the second piston rod 32 can be driven to move toward the rear end, so that the contact air pipe 33 can be inserted into the discharge pipe 23 .

[0047] like Figure 8The spray device 18 includes a vertical rod 36, a displacement sleeve 35 and a first gear 37. The displacement sleeve 35 is fixedly mounted on the top of the vertical rod 36. The first gear 37 is rotatably mounted on the bottom front end of the displacement sleeve 35. The top of the first gear 37 is fixedly mounted with a nozzle 34. When the displacement sleeve 35 is displaced, the first gear 37 can be driven to displace along the second rack 41.

[0048] When the vertical rod 36 drives the displacement sleeve 35 and the first gear 37 to move, the first gear 37 can rotate along the surface of the second rack 41 .

[0049] like Fig. 9 and Fig.10 The connecting device 19 includes a supporting cover plate 39, a placing base frame 38, an H-shaped key 43 and a second rack 41. The second rack 41 is fixedly mounted on the top front end of the supporting cover plate 39. A guide rod 40 is symmetrically fixedly mounted on the top of the supporting cover plate 39. A driving motor 42 is fixedly mounted inside the supporting cover plate 39. The H-shaped key 43 is fixedly mounted on the bottom front end of the supporting cover plate 39. The placing base frame 38 is fixedly mounted on the rear bottom of the supporting cover plate 39. A second gear 44 is fixedly mounted at the rear center of the driving motor 42. A disc 46 is fixedly mounted on the rear end of the second gear 44. A limiting round rod 45 is fixedly mounted on the side end of the disc 46 away from the second gear 44. The disc 46 moves in the slot inside the guide cross frame 13 through the H-shaped key 43, so that the supporting cover plate 39 can move in a straight line.

[0050] When the driving motor 42 is started, the disc 46 can be driven to rotate, so that the limiting round rod 45 can drive the vertical rod 36 to move left and right.

[0051] The nitrogen cylinder 20 is slidably placed inside the placement base frame 38, the H-type key 43 is slidably inserted into the inside of the guide cross frame 13, the second gear 44 is meshed with the first rack 14, the displacement sleeve 35 is slidably sleeved on the guide rod 40, the first gear 37 is meshed with the second rack 41, the limiting round rod 45 is slidably inserted into the inside of the vertical rod 36, the end of the hose 26 away from the contact air pipe 33 is connected to the rear end of the nozzle 34, the support top frame 30 is fixedly installed on the top of the support cover plate 39, the inner bottom end of the guide cross frame 13 is provided with a card slot, the connecting pipe 21 is interconnected with the inside of the nitrogen cylinder 20, and the first synchronization rod The bottom end of 28 is fixedly installed with protrusions at equal distances, and the top ends of both sides of the displacement sleeve 35 and the bottom ends of both sides of the protrusions are inclined at 45°. The interior of the L-shaped air cylinder 27 is hollow, and a closed cavity is formed between the first piston rod 29, the L-shaped air cylinder 27 and the second piston rod 32. A through hole is opened on the outer circle of the contact air pipe 33 away from the hose 26, and the through holes are distributed in a ring shape. The contact air pipe 33 is horizontally aligned with the discharge pipe 23, and a movable groove is opened inside the vertical rod 36. The interior of the displacement sleeve 35 is symmetrically provided with circular holes adapted to the guide rod 40, and the interior of the placement base 38 is provided with a placement groove.

[0052] When implementing this embodiment, the bolts can be passed through the mounting holes inside the mounting plate 15, and the guide cross frame 13 can be installed on the wall as a whole. At the same time, the nitrogen cylinder 20 can be placed inside the placement base frame 38, and there is a signal connection with the controller 3 through the drive motor 42. When the controller 3 issues a fire extinguishing command, the drive motor 42 is turned on. At this time, the drive motor 42 can drive the second gear 44 to rotate, and the second gear 44 is engaged with the first rack 14, so that when the second gear 44 rotates, it can drive the support cover plate 39 to move as a whole on the first rack 14. At this time, the H-type card key 43 slides in the card groove inside the guide cross frame 13, so that the support cover plate 39 can move in a straight line, and when the second gear 44 rotates , can drive the disc 46 to rotate at the same time, and when the disc 46 rotates, it can drive the limiting round rod 45 to rotate, and the vertical rod 36 is slidably sleeved on the limiting round rod 45 through the movable groove inside the vertical rod 36, so that when the limiting round rod 45 rotates, it can drive the vertical rod 36 to move back and forth, and the vertical rod 36 is connected to the displacement sleeve 35, so that when the vertical rod 36 is displaced, it can drive the displacement sleeve 35 to move, and the circular hole inside the displacement sleeve 35 is slidably sleeved on the guide rod 40, so that the displacement sleeve 35 can be supported to rotate, and when the displacement sleeve 35 is displaced, it can contact the protrusion at the bottom end of the first synchronous rod 28, and the top of both sides of the displacement sleeve 35 and the bottom of the protrusion at the bottom end of the first synchronous rod 28 are all inclined at 45 degrees, so that the displacement sleeve 35 and the first When the convex block at the bottom end of the synchronization rod 28 contacts, the first synchronization rod 28 can be squeezed to move upward, so that the first piston rod 29 enters the interior of the L-shaped gas cylinder 27. At this time, the second piston rod 32 can drive the second synchronization rod 31 to move to the rear end, thereby driving the contact gas pipe 33 to insert into the interior of the discharge pipe 23. When the contact gas pipe 33 enters the interior of the discharge pipe 23, the sealing plug 22 can be squeezed to move to the rear end. When the sealing plug 22 is out of contact with the discharge pipe 23, the through hole at the rear end of the outer circle of the contact gas pipe 33 can penetrate the rear end of the discharge pipe 23, so that the inert gas in the nitrogen cylinder 20 can enter the interior of the contact gas pipe 33 through the connecting pipe 21. At the same time, the contact gas pipe 33 is connected to the hose 26, and the hose 26 is connected to the nozzle 34, so that the inert gas in the nitrogen cylinder 20 can enter the interior of the contact gas pipe 33 through the connecting pipe 21. The inert gas can be discharged to the outside through the nozzle 34, and when the displacement sleeve 35 is displaced left and right, it can also drive the first gear 37 to displace along the surface of the second rack 41, so that the first gear 37 can drive the nozzle 34 to rotate left and right. The length of the hose 26 is sufficient to deflect the direction of the nozzle 34, so that the nozzle 34 can be prevented from getting stuck. At the same time, when the supporting cover plate 39 is displaced as a whole, the nozzle 34 can also swing left and right, so as to increase the injection angle of the inert gas, and the second gear 44 is displaced along the surface of the first rack 14, so that the supporting cover plate 39 can be driven to continuously displace until the supporting cover plate 39 contacts the button switch 12, and the button switches 12 at both ends of the guide cross frame 13 are respectively forward and reverse switches.When the support cover plate 39 is displaced to the left and right ends to the extreme positions, they can contact the button switch 12. The button switch 12 is electrically connected to the drive motor 42, so that the drive motor 42 can rotate forward and reverse, which is convenient for the support cover plate 39 to move back and forth on the first rack 14. When the device is in use, when the displacement sleeve 35 passes the convex block at the bottom end of the first synchronization rod 28, the first synchronization rod 28 will lose the extrusion force. At this time, the first piston rod 29 can be driven to move downward by the self-weight of the first synchronization rod 28, so that the second piston rod 32 can drive the second synchronization rod 31 to move toward the front end. Moreover, when the second synchronous rod 31 moves to the front end, it can drive the contact air pipe 33 to be drawn out from the inside of the discharge pipe 23. At the same time, the sealing plug 22 will lose the restriction of the contact air pipe 33, and the elasticity of the reset spring 25 will drive the sealing plug 22 to quickly reset until the sealing plug 22 can close the discharge pipe 23 again, avoiding the rapid loss of the inert gas inside the nitrogen cylinder 20. The displacement sleeve 35 passes through the four protrusions at the bottom end of the first synchronous rod 28 in turn, so that the inert gas inside the nitrogen cylinder 20 can be released intermittently, avoiding the inert gas from being released all at once, and completing the work.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent automatic fire prevention and extinguishing system for a mine, comprising a controller (3), a sound and light alarm (4) installed on the controller (3), an evacuation indicator light (5) fixedly installed on the sound and light alarm (4), a spray device (1) fixedly installed on one end of the controller (3), a fire extinguishing mechanism (2) installed on the spray device (1), characterized in that: A flame sensor (6) is fixedly mounted on the other end of the controller (3); a smoke sensor (7) is mounted on the flame sensor (6); a temperature sensor (8) is mounted on the smoke sensor (7); and a carbon monoxide sensor (9) is mounted on the temperature sensor (8).

2. The intelligent automatic fire prevention and extinguishing system for mines according to claim 1 is characterized in that: The fire extinguishing mechanism (2) further comprises a guide device (10) and a displacement component (11), wherein the displacement component (11) is slidably plugged into the top end of the guide device (10), and the guide device (10) comprises a button switch (12) and a guide cross frame (13), wherein the button switch (12) is fixedly mounted at both ends of the top of the guide cross frame (13), a first rack (14) is fixedly mounted at the rear end of the guide cross frame (13), and two mounting plates (15) are fixedly mounted at the rear end of the first rack (14).

3. The intelligent automatic fire prevention and extinguishing system for mines according to claim 2 is characterized by: The displacement component (11) comprises a conveying device (16), an alignment device (17), an injection device (18) and a connecting device (19); the conveying device (16) is slidably placed inside the connecting device (19); the alignment device (17) is fixedly mounted on the top of the connecting device (19); the injection device (18) is slidably inserted into the top of the connecting device (19), and the injection device (18) is located in front of the alignment device (17).

4. The intelligent automatic fire prevention and extinguishing system for mines according to claim 3 is characterized by: The conveying device (16) comprises a nitrogen cylinder (20), a connecting pipe (21) and a limiting plate (24), wherein the connecting pipe (21) is fixedly mounted on the front end of the nitrogen cylinder (20), the limiting plate (24) is fixedly mounted on an inner end of the connecting pipe (21) away from the nitrogen cylinder (20), a discharge pipe (23) is fixedly mounted at the inner center of the limiting plate (24), a sealing plug (22) is slidably inserted at an end of the discharge pipe (23) close to the nitrogen cylinder (20), and six return springs (25) are fixedly mounted between the sealing plug (22) and the limiting plate (24), and the return springs (25) are distributed in a ring shape; When the sealing plug (22) is squeezed by the contact air pipe (33), the sealing plug (22) can be separated from the discharge pipe (23), and the gas inside the nitrogen cylinder (20) can enter the inside of the contact air pipe (33).

5. The intelligent automatic fire prevention and extinguishing system for mines according to claim 4 is characterized in that: The alignment device (17) comprises a supporting top frame (30), an L-shaped gas cylinder (27), a first piston rod (29) and a first synchronization rod (28); the L-shaped gas cylinder (27) is fixedly mounted at an equidistant position on the inner top of the supporting top frame (30); the first piston rod (29) is slidably inserted into the inner bottom of the L-shaped gas cylinder (27); the first synchronization rod (28) is fixedly mounted on the bottom end of the first piston rod (29); a second piston rod (32) is slidably inserted into the rear end of the L-shaped gas cylinder (27); a second synchronization rod (31) is fixedly mounted on the rear end of the second piston rod (32); a contact air pipe (33) is fixedly mounted on the front end top of the second synchronization rod (31); and a hose (26) is fixedly mounted on the front end of the contact air pipe (33); When the first synchronization rod (28) moves upward, it can drive the second piston rod (32) to move toward the rear end, so that the contact air pipe (33) can be inserted into the interior of the discharge pipe (23).

6. The intelligent automatic fire prevention and extinguishing system for mines according to claim 5 is characterized by: The spraying device (18) comprises a vertical rod (36), a displacement sleeve (35) and a first gear (37); the displacement sleeve (35) is fixedly mounted on the top of the vertical rod (36); the first gear (37) is rotatably mounted on the bottom front end of the displacement sleeve (35); and a nozzle (34) is fixedly mounted on the top of the first gear (37); When the vertical rod (36) drives the displacement sleeve (35) and the first gear (37) to move, the first gear (37) can rotate along the surface of the second rack (41).

7. The intelligent automatic fire prevention and extinguishing system for mines according to claim 6 is characterized by: The connecting device (19) comprises a supporting cover plate (39), a placing base frame (38), an H-shaped key (43) and a second rack (41), wherein the second rack (41) is fixedly mounted on the top front end of the supporting cover plate (39), a guide rod (40) is symmetrically fixedly mounted on the top end of the supporting cover plate (39), a driving motor (42) is fixedly mounted inside the supporting cover plate (39), the H-shaped key (43) is fixedly mounted on the bottom front end of the supporting cover plate (39), the placing base frame (38) is fixedly mounted on the rear bottom of the supporting cover plate (39), a second gear (44) is fixedly mounted at the rear center of the driving motor (42), a disc (46) is fixedly mounted on the rear end of the second gear (44), and a limiting round rod (45) is fixedly mounted on the side end of the disc (46) away from the second gear (44); When the driving motor (42) is started, it can drive the disc (46) to rotate, so that the limiting round rod (45) can drive the vertical rod (36) to move left and right.

8. The intelligent automatic fire prevention and extinguishing system for mines according to claim 7 is characterized by: The nitrogen cylinder (20) is slidably placed inside the placement base frame (38), the H-shaped key (43) is slidably inserted inside the guide cross frame (13), the second gear (44) is meshed with the first rack (14), the displacement sleeve (35) is slidably sleeved on the guide rod (40), the first gear (37) is meshed with the second rack (41), the limiting round rod (45) is slidably inserted inside the vertical rod (36), the end of the hose (26) away from the contact air pipe (33) is connected to the rear end of the nozzle (34), and the support top frame (30) is fixedly installed on the top of the support cover plate (39).

9. The intelligent automatic fire prevention and extinguishing system for mines according to claim 8 is characterized by: A slot is provided at the inner bottom end of the guide cross frame (13); the connecting pipe (21) is interconnected with the interior of the nitrogen cylinder (20); a protrusion is fixedly installed at an equal distance at the bottom end of the first synchronization rod (28); the top ends of both sides of the displacement sleeve (35) and the bottom ends of both sides of the protrusion are inclined at 45 degrees; the interior of the L-shaped gas cylinder (27) is hollow; and a closed cavity is formed between the first piston rod (29), the L-shaped gas cylinder (27) and the second piston rod (32).

10. The intelligent automatic fire prevention and extinguishing system for mines according to claim 9, characterized in that: The contact air pipe (33) is provided with through holes on its outer ring away from the hose (26), and the through holes are distributed in a ring shape. The contact air pipe (33) is horizontally aligned with the discharge pipe (23). A movable groove is provided inside the vertical rod (36). Circular holes that are compatible with the guide rod (40) are symmetrically provided inside the displacement sleeve (35). A placement groove is provided inside the placement base (38).

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