Monitoring device for coal mine gas

Abstract

The invention discloses a monitoring device for coal mine gas, and relates to the technical field of gas concentration monitoring, the monitoring device comprises a collection detection mechanism and a gas monitoring alarm installed in the collection detection mechanism, and one end of the collection detection mechanism is fixedly provided with an installation fixing mechanism; mounting bandages are symmetrically mounted on the outer side of the mounting and fixing mechanism, the collecting and detecting mechanism comprises a collecting conical barrel, a rotating annular cover is fixedly mounted at the end of the collecting conical barrel, a plurality of rotating balls are rotatably connected into the rotating annular cover, a plurality of rotating spiral blades are fixedly mounted in the collecting conical barrel, and the rotating balls are rotatably connected into the collecting conical barrel. According to the mine air monitoring device, the suction force generated by the air exhaust fan is used for absorbing air in a mine, meanwhile, under the action of the rotating spiral blade, the rotating annular cover and the rotating ball, rotation of the converging conical barrel can be achieved, the air in the mine can be converged towards the interior of the air exhaust pipe through the converging conical barrel, and therefore the air monitoring range is widened.

Description

Technical Field

[0001] The invention relates to the technical field of gas concentration monitoring, and in particular to a monitoring device for coal mine gas. Background Art

[0002] The main components of gas are alkanes, among which methane accounts for the vast majority, and there are small amounts of ethane, propane and butane. In addition, it generally contains hydrogen sulfide, carbon dioxide, nitrogen and water, as well as trace amounts of inert gases such as helium and argon. Under standard conditions, methane to butane exist in a gaseous state, and pentane and above are liquids. If they encounter an open flame, they will burn and cause a "gas" explosion, which directly threatens the lives of miners. In coal mines, for safety reasons, combustible gas monitoring alarms are usually installed in coal mines. The combustible gas monitoring alarm can monitor the gas concentration in the coal mine online. Once the gas concentration exceeds the standard, the combustible gas monitoring alarm will sound an alarm to alert relevant staff.

[0003] Announcement No. CN220894302U discloses a gas concentration monitoring device for coal mines. By turning the knob, the threaded rod is pressed against the protective pad, driving the limit block to slide along the slide groove 1 so that the movable plate pushes the sliding wheel 2, so that the clamping wheel 1 and the clamping wheel 2 are clamped, which is convenient for fixing, saving time and effort, and has a good clamping effect and is easy to disassemble. The size can be adjusted according to the diameter of pipes of different sizes, and the applicability is stronger. The monitoring position can also be adjusted at any time according to the construction position in the mine. The clamping wheel 1, the clamping wheel 2, and the protective pad are made of rubber, which can play a certain role in switching and protect the structure. However, the patent still has the following problems in actual use:

[0004] Although the gas concentration monitoring device used in coal mines can make the threaded rod support the protective pad by turning the knob, drive the limit block to slide along the slide groove 1, so that the movable plate pushes the sliding wheel 2, and the clamping wheel 1 and the clamping wheel 2 are clamped for easy fixation, but because the gas concentration monitoring device is fixedly installed inside the mine, the monitoring range is limited, and the internal gas concentration of the mine cannot be accurately monitored.

[0005] Therefore, a monitoring device for coal mine gas is proposed to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide a monitoring device for coal mine gas to solve the problem that the gas concentration monitoring device for coal mine shaft proposed in the above background technology makes the threaded rod support the protective pad by turning the knob, drives the limit block to slide along the slide groove one, so that the movable plate pushes the sliding wheel two, and the clamping wheel one and the clamping wheel two are clamped for easy fixation, but because the gas concentration monitoring device is fixedly installed inside the mine cave, the monitoring range is limited, and the internal gas concentration of the mine cave cannot be accurately monitored.

[0007] To achieve the above object, the present invention provides the following technical solution: a monitoring device for coal mine gas, comprising a collection detection mechanism, and a gas monitoring alarm installed inside the collection detection mechanism;

[0008] A mounting and fixing mechanism is fixedly installed at one end of the collection detection mechanism, and a mounting strap is symmetrically installed on the outer side of the mounting and fixing mechanism;

[0009] Also includes:

[0010] The convergence detection mechanism comprises a convergence cone barrel, a rotating annular cover is fixedly mounted on the end of the convergence cone barrel, and a plurality of rotating balls are rotatably connected inside the rotating annular cover;

[0011] Among them, a plurality of rotating spiral blades are fixedly installed inside the converging conical barrel, and a cleaning scraper is fixedly installed at the end of the rotating spiral blade;

[0012] The interior of the rotating ball is rotatably connected to an exhaust pipe, and a dust filter is fixedly installed on one side of the interior of the exhaust pipe.

[0013] Preferably, the dust filter is fitted and connected to the surface of the cleaning scraper, a fan bracket is fixedly installed on one side of the interior of the exhaust pipe, an exhaust fan is fixedly installed at the inner center position of the fan bracket, and a bevel gear transmission assembly is fixedly installed at the end of the exhaust fan.

[0014] Preferably, a gas monitoring alarm is fixedly installed on the top of the bevel gear transmission assembly, a monitoring tube is fixedly installed on one side of the top of the exhaust pipe, a first mounting bracket is fixedly installed inside the monitoring tube, a support plate is fixedly installed at the inner center position of the first mounting bracket, and a rotating gear ring is fixedly installed on the top of the support plate.

[0015] Preferably, a rotating main gear is fixedly installed on the top of the gas monitoring alarm, and the rotating main gear is rotatably connected to the support plate. The outer side of the rotating main gear is meshingly connected with a rotating slave gear, and the top of the rotating slave gear is rotatably connected with a rotating disk, and a rotating connecting shaft is fixedly installed at the top center position of the rotating disk.

[0016] Preferably, a rotating block is fixedly installed on the top of the rotating connecting shaft, a second mounting bracket is fixedly installed on the outer side of the bottom of the rotating block, a first rotating ring is fixedly installed on the outer side of the second mounting bracket, the first rotating ring is rotatably connected to the monitoring tube, and a mounting cover is fixedly installed on the outer side of the monitoring tube close to the first rotating ring.

[0017] Preferably, a third mounting bracket is fixedly installed around the inner side of the top of the mounting cover, a rotating sleeve is fixedly installed between the four third mounting brackets, the rotating sleeve is rotatably connected to a rotating connecting rod inside, the rotating connecting rod is fixedly installed on the top of the rotating block, and a first bevel gear is fixedly installed on the outer side of the top of the rotating connecting rod.

[0018] Preferably, a second bevel gear is fixedly installed around the top of the first bevel gear, and activated carbon flaps are fixedly installed at the ends of the four second bevel gears. A second rotating ring is rotatably connected to the outer side of the activated carbon flap, and a rotating bearing is rotatably connected to the outer side of the second rotating ring. Fixed support columns are fixedly installed around the bottom of the rotating bearing, and the fixed support columns are fixedly installed around the top of the monitoring tube.

[0019] Preferably, the mounting and fixing mechanism includes an mounting and fixing ring, which is fixedly installed on the end of the exhaust pipe, a fixing bracket is fixedly installed inside the mounting and fixing ring, and fixed slide grooves are provided around the inside of the fixing bracket, a rotating bracket is symmetrically installed on one side of the bottom of the mounting and fixing ring, and a rotating knob is rotatably connected to the outer side of the rotating bracket on one side, a rotating worm is fixedly connected to the end of the rotating knob, and a rotating turbine is rotatably connected to the top of the rotating worm, and a spiral slide groove is provided around the inside of the rotating turbine, and a spiral slider is slidably connected to the inside of the spiral slide groove, and a fixed sliding rod is fixedly connected to one end of the spiral slider, and a fixed cone is fixedly installed on the end of the fixed sliding rod.

[0020] Preferably, the mounting strap is symmetrically mounted on both sides of the mounting fixing ring, the ends of the mounting strap are respectively fixedly mounted with a strap swivel and a connecting snap-fit ​​cover, the middle part of the strap swivel is rotatably connected with a swivel shaft, the end of the swivel shaft is fixedly mounted with a connecting limit plate, a connecting pin is symmetrically mounted on one side of the connecting limit plate, the outer sides of the two connecting pins are fixedly mounted with snap-fit ​​protrusions, an mounting slot is provided inside the connecting snap-fit ​​cover, snap-fit ​​holes are provided at the top and bottom of the mounting slot, and the snap-fit ​​protrusion is snap-fitted and connected with the connecting snap-fit ​​cover through the snap-fit ​​hole.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the coal mine gas monitoring device utilizes the suction force generated by the exhaust fan to absorb the air inside the mine cave, and at the same time, under the action of the rotating spiral blade, the rotating annular cover and the rotating ball, the rotation of the converging cone barrel can be realized, and the air in the mine cave can be converged toward the inside of the exhaust pipe through the converging cone barrel, thereby increasing the range of air monitoring and improving the effect of coal mine gas monitoring. The gas monitoring device can be installed in the mine cave to monitor the gas concentration by installing and fixing the fixing ring and the fixing bracket through the fixing cone, and the gas monitoring device can be tied to the body or the safety helmet of the staff by installing the strap, so that the surrounding gas concentration can be monitored during the work of the staff, thereby improving the work safety of the staff. The specific contents are as follows:

[0022] 1. By setting up the collection detection mechanism, not only can the suction force generated by the exhaust fan be used to absorb the air inside the mine, but also the rotation of the collection cone barrel can be realized under the action of rotating spiral blades, rotating annular cover and rotating balls. The air in the mine can be gathered toward the inside of the exhaust pipe through the collection cone barrel, thereby increasing the range of air monitoring and thus improving the effect of coal mine gas monitoring. At the same time, when absorbing the air, the air in the mine can be filtered through the dust filter to prevent the dust in the air in the mine from affecting the gas monitoring alarm, thereby affecting the accuracy of coal mine gas monitoring. Under the rotation of the exhaust fan, the bevel gear transmission assembly and the gas monitoring alarm are driven to rotate. The gas concentration in the air can be monitored through the gas monitoring alarm to prevent the concentration in the mine from being too high, thereby causing gas accidents to personnel. In order to prevent the phenomenon of gas poisoning, the gas monitoring alarm drives the rotating main gear to rotate, and utilizes the meshing connection characteristics between the rotating main gear, the rotating slave gear and the rotating gear ring to make the rotating slave gear drive the rotating disk and the rotating connecting shaft to rotate, and the rotating connecting shaft drives the rotating block and the rotating connecting rod to rotate, and utilizes the meshing connection characteristics between the first bevel gear and the second bevel gear to realize the vertical rotation of the activated carbon flap. At the same time, under the action of the second rotating ring and the rotating bearing, the activated carbon flap can be rotated horizontally, and the air discharged from the inside of the installation cover can be dispersed, and the activated carbon inside the activated carbon flap can be used to absorb the gas, so as to achieve the effect of reducing the gas concentration. At the same time, when the gas concentration is too high and the gas monitoring alarm sounds an alarm, the staff can flip the monitoring tube downward to disperse and reduce the gas concentration, thereby increasing the escape time of the staff;

[0023] 2. By setting up the installation and fixing mechanism, not only can the rotating knob be used to drive the rotating worm to rotate, but also the meshing connection between the rotating worm and the rotating turbine can be utilized, and under the limiting action of the spiral slide groove, the spiral slider can drive the fixed sliding rod and the fixed cone to move relative to each other, so that the installation and fixing ring and the fixed bracket can be installed and fixed through the fixed cone, so that the gas monitoring device can be installed in the mine to monitor the gas concentration, and the gas monitoring device can be tied to the worker's body or safety helmet by installing the strap, so that the surrounding gas concentration can be monitored during the work of the worker, thereby improving the work safety of the worker, and the installation of the connecting snap cover and the connecting limit plate can be realized by the sliding connection between the connecting pin and the installing slide groove, and at the same time, the fixing of the connecting snap cover and the connecting limit plate can be realized by utilizing the characteristics of the snap connection between the snap protrusion and the snap hole, thereby realizing the connection of the installing strap. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the cross-section three-dimensional structure of the collection detection mechanism in the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the cross section of the converging cone barrel in the present invention;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the cross section of the air extraction pipe and the monitoring pipe in the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating block in the present invention;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the installation cover in the present invention;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the activated carbon flap in the present invention;

[0031] Figure 8 A schematic diagram of the three-dimensional structure of the first bevel gear and the second bevel gear in the present invention;

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the installation and fixing mechanism in the present invention;

[0033] Fig.10 It is a schematic diagram of the three-dimensional structure of the installation of the fixing ring and the fixing bracket in the present invention;

[0034] Fig.11 It is a schematic diagram of the three-dimensional structure of the cross section of the connecting snap-fit ​​cover in the present invention.

[0035] In the figure: 1, collection detection mechanism; 101, collection cone barrel; 102, rotating annular cover; 103, rotating ball; 104, rotating spiral blade; 105, cleaning scraper; 106, exhaust pipe; 107, dust filter; 108, fan bracket; 109, exhaust fan; 110, bevel gear transmission assembly; 111, gas monitoring alarm; 112, monitoring pipe; 113, first mounting bracket; 114, support plate; 115, rotating gear ring; 116, rotating main gear; 117, rotating slave gear; 118, rotating disk; 119, rotating connecting shaft; 120, rotating block; 121, second mounting bracket; 122, first rotating ring; 123, mounting cover; 124, third mounting bracket; 125, rotating sleeve; 126, rotating 1. movable connecting rod; 127. first bevel gear; 128. second bevel gear; 129. activated carbon flap; 130. second rotating ring; 131. rotating bearing; 132. fixed support column; 2. installation of fixing mechanism; 201. installation of fixing ring; 202. fixed bracket; 203. fixed slide groove; 204. rotating bracket; 205. rotating knob; 206. rotating worm; 207. rotating turbine; 208. spiral slide groove; 209. spiral slider; 210. fixed sliding rod; 211. fixed cone; 212. installation of binding strap; 213. binding strap swivel; 214. swivel shaft; 215. connection limit plate; 216. connection pin; 217. snap-fit ​​protrusion; 218. connection snap-fit ​​cover; 219. installation slide groove; 220. snap-fit ​​hole. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-Figure 11The present invention provides a technical solution: a monitoring device for coal mine gas, comprising a collection detection mechanism 1, and a gas monitoring alarm 111 installed inside the collection detection mechanism 1, one end of the collection detection mechanism 1 is fixedly installed with a mounting fixing mechanism 2, and the outer side of the mounting fixing mechanism 2 is symmetrically installed with a mounting strap 212, the collection detection mechanism 1 comprises a collection cone barrel 101, the end of the collection cone barrel 101 is fixedly installed with a rotating annular cover 102, the internal rotation of the rotating annular cover 102 is connected with a plurality of rotating balls 103, wherein the interior of the collection cone barrel 101 is fixedly installed with a plurality of rotating spiral leaves 104, the end of the rotating spiral leaf 104 is fixedly installed with a cleaning scraper 105, wherein the internal rotation of the rotating ball 103 is connected with an exhaust pipe 106, a dust filter 107 is fixedly installed on one side of the interior of the exhaust pipe 106, the dust filter 107 is connected to the surface of the cleaning scraper 105, and the exhaust pipe 106 is fixedly installed with a dust filter 107. The dust filter 107 is connected to the surface of the cleaning scraper 105. A fan bracket 108 is fixedly installed on one side of the interior, and an exhaust fan 109 is fixedly installed at the inner center position of the fan bracket 108. A bevel gear transmission assembly 110 is fixedly installed at the end of the exhaust fan 109, and a gas monitoring alarm 111 is fixedly installed on the top of the bevel gear transmission assembly 110. The suction force generated by the exhaust fan 109 is used to absorb the air inside the mine. At the same time, under the action of rotating spiral blades 104, rotating annular cover 102 and rotating balls 103, the rotation of the converging cone barrel 101 can be achieved. Through the converging cone barrel 101, the air in the mine can be converged toward the inside of the exhaust pipe 106, thereby increasing the range of air monitoring, thereby improving the effect of coal mine gas monitoring, and at the same time, when absorbing the air, the air in the mine can be filtered through the dust filter 107 to prevent the dust in the air in the mine from affecting the gas monitoring alarm 111, thereby affecting the accuracy of coal mine gas monitoring.

[0038] A monitoring tube 112 is fixedly installed on one side of the top of the exhaust pipe 106, a first mounting bracket 113 is fixedly installed inside the monitoring tube 112, a support plate 114 is fixedly installed at the center position of the first mounting bracket 113, a rotating gear ring 115 is fixedly installed on the top of the support plate 114, a rotating main gear 116 is fixedly installed on the top of the gas monitoring alarm 111, the rotating main gear 116 is rotatably connected to the support plate 114, the outer side of the rotating main gear 116 is meshedly connected to a rotating slave gear 117, the top of the rotating slave gear 117 is rotatably connected to a rotating disk 118, and the rotating disk 118 is fixedly installed on the top of the gas monitoring alarm 111. A rotating connecting shaft 119 is fixedly installed at the top center position of the monitoring tube 112, a rotating block 120 is fixedly installed on the top of the rotating connecting shaft 119, a second mounting bracket 121 is fixedly installed on the bottom outer side of the rotating block 120, a first rotating ring 122 is fixedly installed on the outer side of the second mounting bracket 121, the first rotating ring 122 is rotatably connected to the monitoring tube 112, a mounting cover 123 is fixedly installed on the outer side of the monitoring tube 112 near the first rotating ring 122, third mounting brackets 124 are fixedly installed around the top inner side of the mounting cover 123, and a rotating bracket 124 is fixedly installed between the four third mounting brackets 124. The sleeve 125 is rotatably connected to a rotating connecting rod 126 inside the rotating sleeve 125, and the rotating connecting rod 126 is fixedly installed on the top of the rotating block 120. A first bevel gear 127 is fixedly installed on the outer side of the top of the rotating connecting rod 126, and second bevel gears 128 are fixedly installed around the top of the first bevel gear 127. The ends of the four second bevel gears 128 are fixedly installed with activated carbon flaps 129. Under the rotation of the exhaust fan 109, the bevel gear transmission assembly 110 and the gas monitoring alarm 111 are driven to rotate, and the gas monitoring alarm 111 can detect gas in the air. In order to monitor the gas concentration and avoid excessive concentration in the mine, which would cause gas poisoning to personnel, the gas monitoring alarm 111 drives the rotating main gear 116 to rotate, and utilizes the meshing connection characteristics among the rotating main gear 116, the rotating slave gear 117 and the rotating gear ring 115 to make the rotating slave gear 117 drive the rotating disk 118 and the rotating connecting shaft 119 to rotate, and the rotating connecting shaft 119 drives the rotating block 120 and the rotating connecting rod 126 to rotate, and utilizes the meshing connection characteristics between the first bevel gear 127 and the second bevel gear 128 to realize the vertical rotation of the activated carbon flap 129.

[0039] The outer side of the activated carbon flap 129 is rotatably connected to the second rotating ring 130, and the outer side of the second rotating ring 130 is rotatably connected to the rotating bearing 131. Fixed support columns 132 are fixedly installed around the bottom of the rotating bearing 131, and the fixed support columns 132 are fixedly installed around the top of the monitoring tube 112. Under the action of the second rotating ring 130 and the rotating bearing 131, the activated carbon flap 129 can be rotated horizontally, and the air discharged from the inside of the installation cover 123 can be dispersed. The activated carbon inside the activated carbon flap 129 is used to absorb the gas, thereby achieving the effect of reducing the gas concentration. At the same time, when the gas concentration is too high and the gas monitoring alarm 111 sounds an alarm, the staff can flip the monitoring tube 112 downward, which can disperse and reduce the gas concentration and increase the escape time of the staff.

[0040] The mounting and fixing mechanism 2 includes a mounting and fixing ring 201, which is fixedly mounted on the end of the exhaust pipe 106, a fixing bracket 202 is fixedly mounted inside the mounting and fixing ring 201, and fixed slide grooves 203 are arranged around the inside of the fixing bracket 202, a rotating bracket 204 is symmetrically mounted on one side of the bottom of the mounting and fixing ring 201, and a rotating knob 205 is rotatably connected to the outer side of the rotating bracket 204 on one side, a rotating worm 206 is fixedly connected to the end of the rotating knob 205, and a rotating turbine 207 is rotatably connected to the top of the rotating worm 206, and a spiral slide groove 208 is arranged around the inside of the rotating turbine 207. A spiral slider 209 is internally slidably connected, one end of the spiral slider 209 is fixedly connected to a fixed sliding rod 210, and a fixed cone 211 is fixedly installed on the end of the fixed sliding rod 210. The rotating knob 205 is used to drive the rotating worm 206 to rotate. By utilizing the characteristics of the meshing connection between the rotating worm 206 and the rotating turbine 207, and under the limiting action of the spiral slide groove 208, the spiral slider 209 drives the fixed sliding rod 210 and the fixed cone 211 to move relative to each other, so that the fixed ring 201 and the fixed bracket 202 are installed and fixed through the fixed cone 211, and the gas monitoring device can be installed in a mine to monitor the gas concentration.

[0041] The mounting straps 212 are symmetrically mounted on both sides of the mounting fixing ring 201, and the ends of the mounting straps 212 are respectively fixedly mounted with strap swivels 213 and connecting snap-fit ​​covers 218, and the middle part of the strap swivel 213 is rotatably connected with a swivel shaft 214, and a connecting limit plate 215 is fixedly mounted on the end of the swivel shaft 214, and a connecting plug 216 is symmetrically mounted on one side of the connecting limit plate 215, and snap-fit ​​protrusions 217 are fixedly mounted on the outer sides of the two connecting plugs 216, and a mounting slot 219 is provided inside the connecting snap-fit ​​cover 218, and snap-fit ​​holes 220 are provided on the top and bottom of the mounting slot 219, and the snap-fit ​​protrusions 217 pass through the snap-fit ​​protrusions 217. Through the snap-fitting connection with the connecting snap-fitting cover 218 through the snap-fitting hole 220, the gas monitoring device can be tied to the worker's body or safety helmet by installing the strap 212, so that the surrounding gas concentration can be monitored during the work of the worker, thereby improving the work safety of the worker. Through the sliding connection between the connecting pin 216 and the installing slide groove 219, the installation of the connecting snap-fitting cover 218 and the connecting limit plate 215 can be realized. At the same time, by utilizing the snap-fitting connection between the snap-fitting protrusion 217 and the snap-fitting hole 220, the connecting snap-fitting cover 218 and the connecting limit plate 215 can be fixed, thereby realizing the connection of the installing strap 212.

[0042] Working principle: Before using this coal mine gas monitoring device, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Fig.11 As shown, first, the rotating knob 205 is used to drive the rotating worm 206 to rotate, and the meshing connection between the rotating worm 206 and the rotating turbine 207 is utilized, and under the limiting action of the spiral slide 208, the spiral slider 209 drives the fixed sliding rod 210 and the fixed cone 211 to move relative to each other, so that the fixing ring 201 and the fixed bracket 202 are installed and fixed through the fixed cone 211, so that the gas monitoring device can be installed in the mine to monitor the gas concentration, and the gas monitoring device can be tied to the worker's body or safety helmet by installing the strap 212, so that the surrounding gas concentration can be monitored during the work of the worker, thereby improving the work safety of the worker, and the connection between the connecting pin 216 and the installation slide 219 can realize the installation of the connecting clamping cover 218 and the connecting limit plate 215, and at the same time, the connection between the clamping protrusion 217 and the clamping hole 220 can be used to fix the connecting clamping cover 218 and the connecting limit plate 215, thereby realizing the connection of the installation strap 212.

[0043] Secondly, the suction force generated by the exhaust fan 109 is used to absorb the air inside the mine. At the same time, under the action of the rotating spiral blades 104, the rotating annular cover 102 and the rotating ball 103, the convergence cone barrel 101 can be rotated. The converging cone barrel 101 can converge the air in the mine toward the inside of the exhaust pipe 106, thereby increasing the range of air monitoring and thus improving the effect of coal mine gas monitoring. At the same time, when absorbing the air, the air in the mine can be filtered through the dust filter 107 to prevent the dust in the air in the mine from affecting the gas monitoring alarm 111, thereby affecting the accuracy of coal mine gas monitoring. Under the rotation of the exhaust fan 109, the bevel gear transmission assembly 110 and the gas monitoring alarm 111 are driven to rotate. The gas concentration in the air can be monitored through the gas monitoring alarm 111 to prevent the concentration in the mine from being too high, thereby causing gas poisoning to personnel.

[0044] Finally, the main rotating gear 116 is driven to rotate by the gas monitoring alarm 111, and the meshing connection between the main rotating gear 116, the rotating slave gear 117 and the rotating gear ring 115 is utilized to make the rotating slave gear 117 drive the rotating disk 118 and the rotating connecting shaft 119 to rotate, and the rotating connecting shaft 119 drives the rotating block 120 and the rotating connecting rod 126 to rotate, and the meshing connection between the first bevel gear 127 and the second bevel gear 128 is utilized to realize the vertical rotation of the activated carbon flap 129. At the same time, under the action of the second rotating ring 130 and the rotating bearing 131, the horizontal rotation of the activated carbon flap 129 can be realized, and the air discharged from the inside of the mounting cover 123 can be dispersed, and the activated carbon inside the activated carbon flap 129 can be used to absorb the gas, thereby achieving the effect of reducing the gas concentration. At the same time, when the gas concentration is too high and the gas monitoring alarm 111 sounds an alarm, the staff can flip the monitoring tube 112 downward to disperse and reduce the gas concentration, thereby increasing the time for the staff to escape.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coal mine gas monitoring device, comprising a collection detection mechanism (1), and a gas monitoring alarm (111) installed inside the collection detection mechanism (1); A mounting and fixing mechanism (2) is fixedly mounted on one end of the collection detection mechanism (1), and a mounting strap (212) is symmetrically mounted on the outer side of the mounting and fixing mechanism (2); It is characterized in that Also includes: The convergence detection mechanism (1) comprises a convergence cone barrel (101), a rotating annular cover (102) is fixedly mounted on the end of the convergence cone barrel (101), and a plurality of rotating balls (103) are rotatably connected inside the rotating annular cover (102); A plurality of rotating spiral blades (104) are fixedly installed inside the converging conical barrel (101), and a cleaning scraper (105) is fixedly installed at the end of the rotating spiral blade (104); The interior of the rotating ball (103) is rotatably connected to an exhaust pipe (106), and a dustproof filter (107) is fixedly installed on one side of the interior of the exhaust pipe (106).

2. A coal mine gas monitoring device according to claim 1, characterized in that: The dustproof filter (107) is fitted and connected to the surface of the cleaning scraper (105); a fan bracket (108) is fixedly installed on one side of the interior of the exhaust pipe (106); an exhaust fan (109) is fixedly installed at the center position of the interior of the fan bracket (108); and a bevel gear transmission assembly (110) is fixedly installed at the end of the exhaust fan (109).

3. A coal mine gas monitoring device according to claim 2, characterized in that: A gas monitoring alarm (111) is fixedly mounted on the top of the bevel gear transmission assembly (110); a monitoring tube (112) is fixedly mounted on one side of the top of the exhaust pipe (106); a first mounting bracket (113) is fixedly mounted inside the monitoring tube (112); a support plate (114) is fixedly mounted at the inner center position of the first mounting bracket (113); and a rotating gear ring (115) is fixedly mounted on the top of the support plate (114).

4. A coal mine gas monitoring device according to claim 3, characterized in that: A rotating main gear (116) is fixedly mounted on the top of the gas monitoring alarm (111), and the rotating main gear (116) is rotatably connected to the support plate (114). A rotating slave gear (117) is meshedly connected to the outer side of the rotating main gear (116), and a rotating disk (118) is rotatably connected to the top of the rotating slave gear (117). A rotating connecting shaft (119) is fixedly mounted at the top center position of the rotating disk (118).

5. A coal mine gas monitoring device according to claim 4, characterized in that: A rotating block (120) is fixedly mounted on the top of the rotating connecting shaft (119); a second mounting bracket (121) is fixedly mounted on the outer side of the bottom of the rotating block (120); a first rotating ring (122) is fixedly mounted on the outer side of the second mounting bracket (121); the first rotating ring (122) is rotatably connected to the monitoring tube (112); and a mounting cover (123) is fixedly mounted on the outer side of the monitoring tube (112) close to the first rotating ring (122).

6. A coal mine gas monitoring device according to claim 5, characterized in that: A third mounting bracket (124) is fixedly mounted around the inner side of the top of the mounting cover (123); a rotating sleeve (125) is fixedly mounted between the four third mounting brackets (124); a rotating connecting rod (126) is rotatably connected inside the rotating sleeve (125); the rotating connecting rod (126) is fixedly mounted on the top of the rotating block (120); and a first bevel gear (127) is fixedly mounted on the outer side of the top of the rotating connecting rod (126).

7. A coal mine gas monitoring device according to claim 6, characterized in that: A second bevel gear (128) is fixedly mounted around the top of the first bevel gear (127), and activated carbon flaps (129) are fixedly mounted on the ends of the four second bevel gears (128). A second rotating ring (130) is rotatably connected to the outer side of the activated carbon flap (129), and a rotating bearing (131) is rotatably connected to the outer side of the second rotating ring (130). Fixed support columns (132) are fixedly mounted around the bottom of the rotating bearing (131), and the fixed support columns (132) are fixedly mounted around the top of the monitoring tube (112).

8. The coal mine gas monitoring device according to claim 1, characterized in that: The mounting and fixing mechanism (2) comprises a mounting and fixing ring (201), the mounting and fixing ring (201) being fixedly mounted on the end of the exhaust pipe (106), a fixing bracket (202) being fixedly mounted inside the mounting and fixing ring (201), a fixing slide groove (203) being provided around the inside of the fixing bracket (202), a rotating bracket (204) being symmetrically mounted on one side of the bottom of the mounting and fixing ring (201), and a rotating knob (205) being rotatably connected to the outer side of the rotating bracket (204) on one side, The end of the rotating knob (205) is fixedly connected to a rotating worm (206), the top of the rotating worm (206) is rotatably connected to a rotating turbine (207), a spiral groove (208) is provided around the inside of the rotating turbine (207), a spiral slider (209) is slidably connected inside the spiral groove (208), one end of the spiral slider (209) is fixedly connected to a fixed sliding rod (210), and a fixed cone (211) is fixedly installed at the end of the fixed sliding rod (210).

9. A coal mine gas monitoring device according to claim 8, characterized in that: The mounting strap (212) is symmetrically mounted on both sides of the mounting fixing ring (201); the ends of the mounting strap (212) are respectively fixedly mounted with a strap swivel (213) and a connecting snap-fit ​​cover (218); the middle part of the strap swivel (213) is rotatably connected with a swivel shaft (214); the end of the swivel shaft (214) is fixedly mounted with a connecting limit plate (215); one side of the connecting limit plate (215) is symmetrically mounted with a connecting pin (216); the outer sides of the two connecting pins (216) are both fixedly mounted with snap-fit ​​protrusions (217); an mounting slide groove (219) is provided inside the connecting snap-fit ​​cover (218); the top and bottom of the mounting slide groove (219) are both provided with snap-fit ​​holes (220); the snap-fit ​​protrusions (217) are snap-fitted and connected with the connecting snap-fit ​​cover (218) through the snap-fit ​​holes (220).

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