Mine near danger zone alarm device

Abstract

The application discloses a mine-used alarm device for a dangerous area, and relates to the technical field of mine-used alarm devices.The mine-used alarm device comprises a mine-used intrinsic safety type optical fiber camera, a line interface fixed on the mine-used intrinsic safety type optical fiber camera, and a transmission line coupled with the line interface.The mine-used alarm device further comprises a protection assembly.The protection assembly comprises an air source device, an air pipe and a sealed bin.The sealed bin is a hollow cuboid and is fixed on the mine-used intrinsic safety type optical fiber camera, and the line interface is located in the sealed bin.A through hole is formed on the sealed bin away from the mine-used intrinsic safety type optical fiber camera, one end of the transmission line extends out of the sealed bin through the through hole, and the transmission line is sealingly connected with the through hole.An infrared temperature measuring instrument is fixed on the inner side of the sealed bin.The mine-used alarm device can inhibit the occurrence of sparks in advance before the sparks occur, high-concentration nitrogen gas is injected into the sealed bin, heat generated at a joint is absorbed, and the safety of equipment use is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mine alarm devices, in particular to a mine alarm device for a dangerous area. BACKGROUND

[0002] The mine alarm device for a dangerous area is mainly used in key dangerous areas such as a coal mine underground tunneling working face, a coal bunker, a sealing wall and a belt conveyor. The mine alarm device for a dangerous area mainly comprises a host, a mine intrinsic safety optical fiber camera, a power-off controller, an audible and visual touch sensor and an audible and visual alarm, etc. The working environment is monitored in real time by the mine intrinsic safety optical fiber camera. When a person intrudes, the audible and visual touch sensor is controlled by the host to make a safety warning or control the equipment to stop working, so as to avoid safety accidents.

[0003] The line joint of the mine intrinsic safety optical fiber camera is usually exposed to the working environment of the mine. The contact area at the joint is usually small, which leads to a large contact resistance and easily causes local heating and burning. The environment in the mine is humid, dusty and high-temperature, which leads to a decrease in the insulation performance at the line joint and an increase in the short circuit risk. When a short circuit occurs, sparks will appear, which will easily cause a fire. The environment in the mine is complex, and the fire cannot be controlled in time, which may cause a gas explosion or a harmful gas poisoning, and seriously affects the safety of the equipment use. SUMMARY

[0004] The mine alarm device for a dangerous area provided by the present application solves the problem that the short circuit risk at the line joint is large, and sparks will appear when a short circuit occurs, which easily causes a fire in the prior art.

[0005] The mine alarm device for a dangerous area provided by the present application comprises a mine intrinsic safety optical fiber camera. A line interface is fixed on the mine intrinsic safety optical fiber camera. The line interface and a transmission line are coupled and connected.

[0006] The mine alarm device for a dangerous area further comprises a protection assembly.

[0007] The protection assembly comprises an air source device, an air pipe and a sealing bin.

[0008] The sealing bin is a hollow rectangular body, and is fixed on the mine intrinsic safety optical fiber camera. The line interface is located in the sealing bin.

[0009] A through hole is formed on the sealing bin away from the mine intrinsic safety optical fiber camera. One end of the transmission line extends out of the sealing bin through the through hole, and the transmission line and the through hole are sealingly connected.

[0010] An infrared temperature measuring instrument is fixed on the inner side of the sealing bin. The infrared temperature measuring instrument is used to monitor the temperature at the joint of the transmission line and the line interface.

[0011] The ventilation pipe is fixed on the sealed cabin, one end of the ventilation pipe extends into the sealed cabin, and the other end of the ventilation pipe is connected with the gas source device;

[0012] The ventilation pipe is fixed with a gas pump, the gas pump sends the gas in the gas source device into the ventilation pipe, the gas source device is a nitrogen cylinder, and the nitrogen cylinder is used for providing nitrogen in the sealed cabin.

[0013] Further, the protection assembly further comprises a telescopic part and a support part;

[0014] The line interface is a cylindrical joint, the telescopic part is an annular rubber capsule, the telescopic part is fixed in the sealed cabin close to the line interface, and the telescopic part is located outside the line interface, the axis of the telescopic part coincides with the axis of the line interface;

[0015] The ventilation pipe is fixed with a gas pipe, the free end of the gas pipe passes through the sealed cabin and extends into the telescopic part, and a start-stop valve is fixed on the gas pipe;

[0016] The support part is connected with the transmission line, the telescopic part is inflated by the gas in the gas pipe, the support part is moved, and the transmission line is separated from the line interface.

[0017] Further, the support part comprises a support;

[0018] The support has two, the two supports are parallel, and the ends close to the line interface of the two supports are connected with the telescopic part, and the ends away from the line interface between the two supports are fixed with a positioning plate;

[0019] The middle part of the positioning plate is provided with a through slot, and the transmission line passes through the through slot and is fixed with the positioning plate;

[0020] The outer part of the telescopic part is fixed with a glass fiber cloth, and the glass fiber cloth can expand and shrink along with the expansion and shrink of the telescopic part.

[0021] Further, the bottoms close to the telescopic part of the two supports are fixed with annular retaining plates two;

[0022] The telescopic part is fixed with an annular retaining plate one close to the support, and the retaining plate one and the retaining plate two are fixedly connected;

[0023] The positioning plate is fixed with a positioning block away from the retaining plate two, and a positioning seat is fixed in the sealed cabin close to the positioning block;

[0024] The cross section of the positioning seat is in the shape of a concave, and the positioning block extends into the positioning seat;

[0025] The support can clamp the positioning block in the positioning seat when moving.

[0026] Further, the support is a hollow box body, and a fire retardant is stored in the box body, and the fire retardant is used for inhibiting combustion of sparks.

[0027] The side close to the transmission line of the bracket is fixed with a plurality of nozzles for spraying the transmission line with fire retardant;

[0028] The two brackets are connected by a branch pipe, and the free end of the branch pipe is connected with the air supply pump through a pipeline.

[0029] Further, the air guide pipe is fixed on the air pipe, the free end of the air guide pipe extends into the sealed bin, and the free end of the branch pipe is connected with the extending end of the air guide pipe.

[0030] The air guide pipe is fixed with a one-way valve for preventing backflow of the fire retardant, and the fire retardant in the bracket is perfluoroacetone fire retardant.

[0031] Further, the sealed bin is externally fixed with a liquid storage box, the liquid storage box contains fire retardant, the liquid storage box is connected with a liquid injection pipe, the liquid injection pipe is fixed with a liquid pumping pump, and the outlet end of the liquid injection pipe is fixed with a plurality of shunt pipes.

[0032] The free end of one of the shunt pipes penetrates the sealed bin and extends into the bracket, and the shunt pipe and the bracket are sealingly connected.

[0033] Further, the transmission line is sleeved with an annular outer cylinder outside, the axis of the outer cylinder coincides with the axis of the transmission line, and a gap is left between the outer cylinder and the transmission line.

[0034] The outer cylinder outside the sealed bin is uniformly and spacedly provided with a plurality of micropores.

[0035] Further, the main machine, the start-stop sensor, the power supply and the sound-light touch sensor are further included, the mine intrinsic safety type optical fiber camera is electrically connected with the main machine through a circuit, and the sound-light touch sensor is used for sensing personnel and other heat sources close to the dangerous area.

[0036] The sound-light touch sensor is electrically connected with the main machine through a circuit, the main machine collects monitoring information of the mine intrinsic safety type optical fiber camera and the sound-light touch sensor, and analyzes the information.

[0037] Further, the sound-light alarm, the power-off controller and the personnel identification card are further included.

[0038] The sound-light alarm is electrically connected with the main machine through a circuit, the sound-light alarm is used for sending an alarm signal and performing voice broadcast, the power-off controller is electrically connected with the main machine through a circuit, and the power-off controller is used for cutting off power supply of the equipment.

[0039] The personnel identification card is electrically connected with the main machine through a circuit, and the personnel identification card is used for identifying personnel identity.

[0040] One or more technical solutions provided in the embodiments have at least the following technical effects or advantages:

[0041] By setting the protection assembly, by filling nitrogen in the sealed warehouse, the spark can be inhibited in advance before the spark occurs, by injecting high concentration of nitrogen in the sealed warehouse, the oxygen content in the sealed warehouse is reduced, the heat generated at the joint is absorbed, and the spark is extinguished faster when the spark occurs, the flame is effectively suffocated, and the safety of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 It is a side view of the structure of the mine near danger area alarm device of the application;

[0043] Figure 2 It is a back view of the structure of the mine near danger area alarm device of the application;

[0044] Figure 3 It is a structure diagram of the connection relationship between the line interface and the transmission line of the mine near danger area alarm device of the application;

[0045] Figure 4 It is a sectional view of the structure of the mine near danger area alarm device of the application;

[0046] Figure 5 It is a structure diagram of the position relationship between the infrared temperature measuring instrument and the sealed warehouse of the mine near danger area alarm device of the application;

[0047] Figure 6 It is a structure diagram of the connection relationship between the gas guide pipe and the branch pipe of the mine near danger area alarm device of the application;

[0048] Figure 7 It is a structure diagram of the position relationship between the positioning seat and the positioning block of the mine near danger area alarm device of the application;

[0049] Figure 8 It is a structure diagram of the state of the extension part driving the support to move of the mine near danger area alarm device of the application;

[0050] Figure 9 It is a structure diagram of the connection relationship between the liquid injection pipe and the shunt pipe of the mine near danger area alarm device of the application;

[0051] Figure 10 It is a structure diagram of the mine near danger area alarm device of the application Figure 9 It is a structure diagram of the mine near danger area alarm device of the application

[0052] Figure 11 It is a structure diagram of the state of the line interface and the transmission line of the mine near danger area alarm device of the application;

[0053] Figure 12It is a transmission line section structure schematic view of the mine-used alarm device for the adjacent dangerous area of the application.

[0054] Figure 13 It is a system connection structure schematic view of the mine-used alarm device for the adjacent dangerous area of the application.

[0055] In the figure: 100, the mine-used intrinsically safe optical fiber camera; 110, the line interface; 120, the transmission line; 121, the outer side cylinder;

[0056] 200, the protection assembly; 210, the air source device; 220, the air pipe; 221, the air supply pipe; 222, the air guide pipe; 2221, the branch pipe; 230, the sealed bin; 231, the infrared temperature measuring instrument; 232, the positioning seat;

[0057] 240, the telescopic part; 241, the first retaining plate;

[0058] 250, the support part; 251, the support; 2511, the nozzle; 2512, the second retaining plate; 252, the positioning plate; 2521, the positioning block;

[0059] 260, the liquid injection pipe; 261, the shunt pipe; 270, the liquid storage box. DETAILED DESCRIPTION

[0060] In order to facilitate the understanding of the application, the application will be described more fully below with reference to the accompanying drawings; the preferred embodiments of the application are shown in the drawings, however, the application can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to make the disclosure of the application more thorough and comprehensive.

[0061] It should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the application belongs; the terms used herein in the specification of the application are only for the purpose of describing the specific embodiments and are not intended to limit the application; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0063] As Figures 1 to 5As shown, the application proposes a mine near-dangerous area alarm device, which comprises a mine intrinsic safety optical fiber camera 100, the mine intrinsic safety optical fiber camera 100 is installed underground, the mine intrinsic safety optical fiber camera 100 is used for real-time monitoring of the dangerous area underground, and timely warning is given to the personnel entering the dangerous area, a line interface 110 is fixed on the mine intrinsic safety optical fiber camera 100, the line interface 110 and a transmission line 120 are coupled and connected, and the transmission line 120 and the line interface 110 are detachably connected;

[0064] Further comprising a protection assembly 200;

[0065] The protection assembly 200 comprises a gas source device 210, an air pipe 220 and a sealing bin 230;

[0066] The sealing bin 230 is a hollow cuboid, and it is fixed on the mine intrinsic safety optical fiber camera 100, the line interface 110 is located in the sealing bin 230, the sealing bin 230 is used for isolating coal powder, dust and other impurities underground, reducing the oxidation of the joint of the line interface 110 and the transmission line 120, thereby reducing the damage of these impurities to the joint of the line interface 110 and the transmission line 120;

[0067] A through hole is formed on the sealing bin 230 away from the mine intrinsic safety optical fiber camera 100, one end of the transmission line 120 extends out of the sealing bin 230 through the through hole, and the transmission line 120 and the through hole are sealingly connected, that is, coal powder, dust and other impurities are not easy to enter the sealing bin 230;

[0068] An infrared temperature measuring instrument 231 is fixed on the inner side of the sealing bin 230, and the infrared temperature measuring instrument 231 is used for monitoring the temperature of the joint of the transmission line 120 and the line interface 110;

[0069] The air pipe 220 is fixed on the sealing bin 230, one end of the air pipe 220 extends into the sealing bin 230, and the other end of the air pipe 220 is connected with the gas source device 210;

[0070] A gas pump is fixed on the air pipe 220, the gas pump sends the gas in the gas source device 210 into the air pipe 220, the gas source device 210 is a nitrogen cylinder and is used for providing nitrogen in the sealing bin 230, the concentration of the nitrogen is not less than 97%, a placing cabinet is installed underground, the gas source device 210 is fixed in the placing cabinet, and the gas supply in the sealing bin 230 is not affected.

[0071] It should be noted that the transmission line 120 is close to the line joint of the line interface 110, and when the temperature of the joint reaches above 70 DEG C, short circuit and spark are prone to occur. The infrared thermometer 231 is used to monitor the joint, and when the temperature approaches 70 DEG C, nitrogen is filled in the sealed bin 230 in advance to prevent the spark from occurring before the spark occurs.

[0072] Specifically, as shown in Figures 3 to 5 The protection assembly 200 further comprises a telescopic part 240 and a support part 250.

[0073] The line interface 110 is a cylindrical joint, the telescopic part 240 is an annular rubber capsule, and the telescopic part 240 is fixed in the sealed bin 230 close to the line interface 110. The telescopic part 240 is located outside the line interface 110, the axis of the telescopic part 240 coincides with the axis of the line interface 110, and the telescopic part 240 and the line interface 110 are not connected to each other.

[0074] The air supply pipe 221 is fixed on the air pipe 220, the free end of the air supply pipe 221 penetrates the sealed bin 230 and extends into the telescopic part 240, the air supply pipe 221 and the sealed bin 230 are sealingly connected, and the connection between the air supply pipe 221 and the telescopic part 240 is airtight. The air supply pipe 221 is a flexible pipe and can adapt to the expansion and contraction of the telescopic part 240. The air supply pipe 221 is provided with an on-off valve for controlling the air inlet amount of the air supply pipe 221.

[0075] The support part 250 is connected with the transmission line 120, and the air in the telescopic part 240 is supplied through the air supply pipe 221 to make the telescopic part 240 expand and push the support part 250 to move, so that the transmission line 120 is separated from the line interface 110.

[0076] It should be noted that when the joint temperature is too high and sparks occur, timely cutting off the connection between the transmission line 120 and the line interface 110 can reduce the fire, the telescopic part 240 is rapidly inflated, the telescopic part 240 rapidly expands along the axis direction, so that the transmission line 120 is pulled out from the line interface 110, and the loss is reduced.

[0077] Specifically, as shown in Figures 3 to 5 The support part 250 comprises a support 251.

[0078] The support 251 has two, the two supports 251 are parallel, and the end of the two supports 251 close to the line interface 110 is connected with the telescopic part 240. The end of the two supports 251 away from the line interface 110 is fixed with a positioning plate 252.

[0079] The positioning plate 252 has a through slot in the middle, and the transmission line 120 passes through the through slot and is fixed with the positioning plate 252, that is, the bracket 251 can drive the transmission line 120 to be separated from the line interface 110 when the bracket 251 moves;

[0080] The outer part of the telescopic part 240 is fixed with a glass fiber cloth, which can expand and contract along with the expansion and contraction of the telescopic part 240.

[0081] It should be noted that the glass fiber cloth can withstand a temperature as high as 550°C and does not burn, and at the same time, the tensile strength of the glass fiber cloth is high, and it can expand and contract along with the expansion and contraction of the telescopic part 240.

[0082] Specifically, as shown in Figures 3 to 6 The two brackets 251 have annular retaining plates two 2512 fixed on the bottom near the telescopic part 240;

[0083] The telescopic part 240 has an annular retaining plate one 241 fixed near the bracket 251, and the retaining plate one 241 and the retaining plate two 2512 are fixedly connected, which can increase the contact force and make the transmission line 120 better separated from the line interface 110;

[0084] The positioning plate 252 has a positioning block 2521 fixed away from the retaining plate two 2512, and the sealing chamber 230 has a positioning seat 232 fixed near the positioning block 2521;

[0085] The positioning seat 232 has a concave cross section, and the positioning block 2521 extends into the positioning seat 232;

[0086] The bracket 251 can clamp the positioning block 2521 in the positioning seat 232 when the bracket 251 moves.

[0087] It is easy to understand that when the transmission line 120 is separated from the line interface 110, the positioning block 2521 is clamped in the positioning seat 232 by using the friction force as the positioning plate 252 moves, which provides support force for the separated transmission line 120 and is not easy to fall off. When the transmission line 120 is separated, no spark occurs, and because the sealing chamber 230 is filled with nitrogen, the temperature of the transmission line 120 is reduced. When the transmission line 120 is not damaged, after the nitrogen filling is completed, the air in the air pipe 220 is pumped out by the air pump, and the air in the telescopic part 240 is pumped out by the air pipe 221, so that the telescopic part 240 is contracted and the bracket 251 is moved, so that the positioning block 2521 is separated from the positioning seat 232, and the transmission line 120 is inserted into the line interface 110 again. The line is quickly maintained.

[0088] In the above embodiment, the joint is monitored by the infrared thermometer 231, when the temperature of the joint approaches 70℃, the nitrogen in the gas source device 210 is sent into the air pipe 220 by the air pump, the nitrogen in the sealed warehouse 230 is filled in advance, the spark can be suppressed in advance before the spark occurs, the high concentration of nitrogen is injected into the sealed warehouse 230, so as to reduce the oxygen content in the sealed warehouse 230, and absorb the heat generated at the joint;

[0089] When the transmission line 120 near the joint spark, open the on-off valve on the gas pipe 221, make the gas into the telescopic part 240, with the gas into the telescopic part 240, the telescopic part 240 expands and drives the support 251 to move outward quickly, separates the transmission line 120 and the line interface 110, and the positioning block 2521 is embedded in the positioning seat 232 to fix the support 251, then close the on-off valve on the gas pipe 221 to stop the gas, which can quickly separate the transmission line 120 and the line interface 110 when the spark occurs, avoid larger fire, reduce the damage degree of the equipment, facilitate better extinguishing the spark, prevent the rekindling, and improve the safety of the equipment.

[0090] In some embodiments of the present application, as shown in Figures 3 to 8 The support 251 is a hollow box body, and the inside of the support 251 contains a fire retardant, which is used to suppress the combustion of the spark;

[0091] The side of the support 251 close to the transmission line 120 is fixed with a plurality of nozzles 2511, the nozzles 2511 are used to spray the fire retardant to the transmission line 120;

[0092] Two supports 251 are connected by a branch pipe 2221, the branch pipe 2221 is a flexible pipe and can adapt to the movement of the support 251, the free end of the branch pipe 2221 is connected with the air pump through the pipeline, the air pump is fixed outside the sealed warehouse 230, and the air pump increases the fire retardant in the support 251 through the branch pipe 2221, so that the fire retardant is sprayed from the nozzles 2511.

[0093] It should be noted that when the spark occurs at the transmission line 120, the nitrogen is filled in the sealed warehouse 230, and the fire retardant is sprayed from the nozzles 2511 to extinguish the spark, which can more quickly and efficiently suppress the spark, achieve the effect of fire extinguishing and fire retardant at the same time.

[0094] Specifically, as shown in Figures 3 to 8 The air pipe 220 is fixed with an air guide pipe 222, the free end of the air guide pipe 222 extends into the sealed warehouse 230, the air guide pipe 222 and the sealed warehouse 230 are sealingly connected, and the free end of the branch pipe 2221 is connected with the extending end of the air guide pipe 222, that is, the branch pipe 2221 and the air guide pipe 222 are connected in communication;

[0095] The one-way valve is fixed on the air guide pipe 222 and is used for preventing the backflow of the fire retardant. When the air is extracted in the telescopic part 240, the fire retardant in the support 251 does not flow. The fire retardant in the support 251 is perfluoro ketone fire retardant. The perfluoro ketone fire retardant can be used in cooperation with nitrogen, and the fire extinguishing effect is better.

[0096] It is worth noting that when the air pump sends air into the air pipe 220, the telescopic part 240 expands and drives the transmission line 120 to separate from the line interface 110. At the same time, nitrogen enters the support 251, and the nozzle 2511 sprays the perfluoro ketone fire retardant containing nitrogen. The perfluoro ketone fire retardant used in cooperation with nitrogen can better suppress the flame and cover the transmission line 120 with a layer of fire-retardant protective layer, so as to isolate the contact between air and the fire source. At the same time, the sprayed fire retardant can cool and retard the fire at the line interface (110) after falling, further preventing the spread of the fire and ensuring the safety of the equipment.

[0097] Specifically, as shown in Figures 8 to 10 The sealing bin 230 is externally fixed with a liquid storage box 270. The liquid storage box 270 contains fire retardant. The liquid storage box 270 is connected with a liquid injection pipe 260. The liquid injection pipe 260 is fixed with a liquid extraction pump. The liquid extraction pump is used for sending the fire retardant in the liquid storage box 270 into the shunt pipe 261. The outlet end of the liquid injection pipe 260 is fixed with a plurality of shunt pipes 261. The shunt pipe 261 is a flexible pipe and can adapt to the movement of the support 251.

[0098] One end of the shunt pipe 261 passes through the sealing bin 230 and extends into the support 251. The shunt pipe 261 is sealingly connected with the support 251.

[0099] It is easy to understand that the liquid storage box 270 can supplement the fire retardant in the support 251 in time. The liquid extraction pump sends the fire retardant in the liquid storage box 270 into the shunt pipe 261, and the shunt pipe 261 supplements the fire retardant in the support 251 in time, thereby improving the fire extinguishing effect.

[0100] On the basis of the above embodiment, when the flame appears at the joint, the one-way valve on the air guide pipe 222 is opened. With the air in the air pipe 220, nitrogen can enter the branch pipe 2221 from the air guide pipe 222, enter the support 251 through the branch pipe 2221, and pressurize the fire retardant in the support 251. The nozzle 2511 sprays the misty fire retardant containing nitrogen on the surface of the transmission line 120. The fire retardant containing nitrogen can be continuously sprayed during the separation of the transmission line 120 and the line interface 110, and the flame at the transmission line 120 can be extinguished. Not only can the contact between oxygen and the surface of the transmission line 120 be inhibited, but also the burning speed of the flame can be slowed down. A layer of fire-retardant layer is wrapped on the surface of the transmission line 120, which can avoid the extinguished flame from covering again, prevent the flame from further eroding the transmission line 120, reduce the spread of the fire, and ensure the safety of the equipment.

[0101] As shown in some embodiments of the present application, Figure 11 and Figure 12 The transmission line 120 is sleeved with an annular outer cylinder 121 outside, the axis of the outer cylinder 121 coincides with the axis of the transmission line 120, and a gap is left between the outer cylinder 121 and the transmission line 120;

[0102] The outer cylinder 121 outside the sealed chamber 230 is uniformly spaced on the side with a plurality of micropores with a diameter of 0.3nm to 0.5nm, and the outer cylinder 121 inside the sealed chamber 230 is not provided with micropores, that is, before the transmission line 120 and the line interface 110 are separated, nitrogen gas is not easy to enter the gap between the outer cylinder 121 and the transmission line 120, and the amount of nitrogen gas entering the gap is small, which does not affect the effect of the nitrogen gas injected into the sealed chamber 230, and the nitrogen gas in the sealed chamber 230 can achieve the effect of extinguishing fire.

[0103] In the above embodiment, after the transmission line 120 and the line interface 110 are separated, the nitrogen gas in the sealed chamber 230 can enter the gap between the outer cylinder 121 and the transmission line 120, and when the amount of nitrogen gas in the gap is relatively large, the nitrogen gas can overflow from the micropores to form a protective layer around the transmission line 120, which not only can play a role in reducing temperature, but also can reduce the spread of fire.

[0104] As shown in some embodiments of the present application, Figure 13 Further comprising a host computer, an opening and stopping sensor, a power supply and an audible and light touch sensor, the mine intrinsic safety type optical fiber camera 100 is electrically connected to the host computer through a circuit, the mine intrinsic safety type optical fiber camera 100 performs character recognition, and the audible and light touch sensor is used for sensing personnel and other heat sources close to the dangerous area;

[0105] The opening and stopping sensor is used for detecting the running state of the equipment in the mine, and the power supply is used for supplying power to the electronic equipment of the mine alarm device near the dangerous area;

[0106] The audible and light touch sensor is electrically connected to the host computer through a circuit, and the host computer collects monitoring information of the mine intrinsic safety type optical fiber camera 100 and the audible and light touch sensor, and analyzes the information.

[0107] It should be noted that various adjustments of the host computer are completed by an infrared remote controller, and the audible and light touch sensor monitors the human body or other heat sources close to the dangerous area through a heat release infrared human body sensing technology.

[0108] Specifically, as shown in some embodiments of the present application, Figure 13 Further comprising an audible and light alarm, a power-off controller and a personnel identification card;

[0109] The sound and light alarm is electrically connected with the host computer through a circuit, and is used for sending an alarm signal and voice broadcasting.

[0110] The personnel identification card is electrically connected with the host computer through a circuit, and is used for reading relevant information through a card reader electrically connected with the host computer, and for specifying the identity of personnel, permitting the personnel entering the dangerous area, and sending an alarm or cutting off the power supply of the equipment to prevent personnel from being injured when the personnel not entering the system approach the dangerous area.

[0111] It is worth noting that the warning made by the personnel approaching the dangerous area is divided into two levels, the first level warning is a sound and light safety alarm, and the second level warning is a power-off control.

[0112] In the above embodiment, the mine intrinsically safe optical fiber camera 100 is used for real-time monitoring of the picture of the dangerous area in the mine, and the mine intrinsically safe optical fiber camera 100 and the sound and light touch sensor are used in cooperation, when the sound and light touch sensor senses that the personnel approach within 5m of the dangerous area, the monitoring information is transmitted to the host computer, and the host computer analyzes and judges the monitoring information;

[0113] When the host computer analyzes and judges that the personnel approaching needs to be warned at the first level, the host computer drives the sound and light alarm to send a safety alarm, and voice broadcasts "dangerous area, please leave as soon as possible", when the personnel continue to approach the equipment after hearing the warning, the host computer drives the sound and light alarm and the power-off controller, and the power-off controller cuts off the power supply of the equipment, which can avoid safety accidents.

[0114] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and the present application can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made in the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mine-used alarm device for a vicinity of a dangerous area, characterized by, The application relates to a mine-used intrinsic safety optical fiber camera (100), which is provided with a line interface (110) fixed on the mine-used intrinsic safety optical fiber camera (100), and the line interface (110) is coupled with a transmission line (120); The application further relates to a protection assembly (200); The protection assembly (200) comprises an air source device (210), an air pipe (220) and a sealed bin (230); The sealed bin (230) is a hollow cuboid, and the sealed bin (230) is fixed on the mine-used intrinsic safety optical fiber camera (100); the line interface (110) is located in the sealed bin (230); A through hole is formed on the sealed bin (230) away from the mine-used intrinsic safety optical fiber camera (100); one end of the transmission line (120) penetrates through the through hole and extends out of the sealed bin (230); and the transmission line (120) is in sealing connection with the through hole; An infrared temperature detector (231) is fixed on the inner side of the sealed bin (230); the infrared temperature detector (231) is used for monitoring the temperature of the joint between the transmission line (120) and the line interface (110); The air pipe (220) is fixed on the sealed bin (230); one end of the air pipe (220) extends into the sealed bin (230); and the other end of the air pipe (220) is connected with the air source device (210); An air pump is fixed on the air pipe (220); the air pump is used for sending the gas in the air source device (210) into the air pipe (220); the air source device (210) is a nitrogen cylinder, and the air source device (210) is used for providing nitrogen for the sealed bin (230); The protection assembly (200) further comprises an expansion part (240) and a supporting part (250); The line interface (110) is a cylindrical joint; the expansion part (240) is an annular rubber capsule, and the expansion part (240) is fixed in the sealed bin (230) and close to the line interface (110); the expansion part (240) is located outside the line interface (110); and the axis of the expansion part (240) coincides with the axis of the line interface (110); An air feeding pipe (221) is fixed on the air pipe (220); the free end of the air feeding pipe (221) penetrates through the sealed bin (230) and extends into the expansion part (240); and a start-stop valve is fixed on the air feeding pipe (221); The supporting part (250) is connected with the transmission line (120); the air feeding pipe (221) feeds the air into the expansion part (240), so that the expansion part (240) expands and pushes the supporting part (250) to move, and the transmission line (120) is separated from the line interface (110).

2. The mine proximity hazard area warning device of claim 1, wherein, The supporting part (250) comprises a support (251); There are two supports (251), and the two supports (251) are parallel; one end of the two supports (251) close to the line interface (110) is connected with the expansion part (240); and a positioning plate (252) is fixed on the other end of the two supports (251) away from the line interface (110); A through slot is formed in the middle of the positioning plate (252); the transmission line (120) penetrates through the through slot and is fixed with the positioning plate (252); A glass fiber cloth is fixed outside the expansion part (240); the glass fiber cloth expands and shrinks along with the expansion part (240).

3. The mine proximity hazard area warning device of claim 2, wherein, Two said bracket (251) on the bottom near the telescopic part (240) is fixed with annular retainer plate two (2512); The telescopic part (240) is fixed with annular retainer plate one (241) near the bracket (251), and the retainer plate one (241) and the retainer plate two (2512) are fixedly connected; The positioning block (2521) is fixed on the positioning plate (252) away from the retainer plate two (2512), and the positioning seat (232) is fixed in the sealing bin (230) near the positioning block (2521); The cross section of the positioning seat (232) is concave, and the positioning block (2521) extends into the positioning seat (232); The bracket (251) can clamp the positioning block (2521) in the positioning seat (232) when moving.

4. The mine proximity hazard area warning device of claim 2, wherein, The bracket (251) is a hollow box body, and the inside of the bracket (251) contains a fire retardant, which is used to suppress the combustion of sparks; The side of the bracket (251) near the transmission line (120) is fixed with a plurality of nozzles (2511), and the nozzles (2511) are used to spray the fire retardant on the transmission line (120); Two said bracket (251) between through a branch pipe (2221) connection, branch pipe (2221) spare end through pipeline with gas sending pump connection.

5. The mine proximity hazard area alerting device of claim 1, wherein, The air guide pipe (222) is fixed on the air guide pipe (222), and the spare end of the air guide pipe (222) extends into the sealing bin (230), and the spare end of the branch pipe (2221) is connected with the extending end of the air guide pipe (222). The air guide pipe (222) is fixed with a one-way valve, which is used to prevent the backflow of fire retardant, and the fire retardant in the bracket (251) is perfluoro ketone fire retardant.

6. The mine proximity hazard area alerting device of claim 1, wherein, The sealing bin (230) is fixed with a liquid storage box (270) outside, the liquid storage box (270) contains fire retardant, the liquid storage box (270) is connected with a liquid injection pipe (260), the liquid injection pipe (260) is fixed with a liquid pump, and a plurality of shunt pipes (261) are fixed on the outlet end of the liquid injection pipe (260); The spare end of one said shunt pipe (261) penetrates through the sealing bin (230) and extends into the bracket (251), and the shunt pipe (261) and the bracket (251) are sealingly connected.

7. The mine proximity hazard area alerting device as defined in claim 1 wherein, The transmission line (120) is sleeved with an annular outer cylinder (121) outside, the axis of the outer cylinder (121) coincides with the axis of the transmission line (120), and a gap is left between the outer cylinder (121) and the transmission line (120); The outer cylinder (121) is uniformly and spacedly provided with a plurality of micropores on the side surface outside the sealing bin (230).

8. The mine proximity hazard area alerting device as defined in claim 1, wherein, It also includes a host computer, an opening and stopping sensor, a power supply and an audible and light touch sensor, the mine intrinsic safety optical fiber camera (100) is electrically connected with the host computer through a circuit, and the audible and light touch sensor is used to sense the personnel and other heat sources close to the dangerous area; The audible and light touch sensor is electrically connected with the host computer through a circuit, and the host computer collects the monitoring information of the mine intrinsic safety optical fiber camera (100) and the audible and light touch sensor, and analyzes the information.

9. The mine proximity hazard area alerting device of claim 1, wherein, It also includes an audible and light alarm, a power-off controller and a personnel identification card. The sound-light alarm is electrically connected with the host computer through a circuit, and is used for sending an alarm signal and voice broadcasting; the power-off controller is electrically connected with the host computer through a circuit, and is used for cutting off power supply of the equipment; The personnel identification card is electrically connected with the host computer through a circuit, and is used for identifying personnel identity.

Images