CN110107359B - Be applied to ventilation monitoring device in coal mine safety production - Google Patents
Be applied to ventilation monitoring device in coal mine safety production Download PDFInfo
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- CN110107359B CN110107359B CN201910399704.3A CN201910399704A CN110107359B CN 110107359 B CN110107359 B CN 110107359B CN 201910399704 A CN201910399704 A CN 201910399704A CN 110107359 B CN110107359 B CN 110107359B
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- 238000009423 ventilation Methods 0.000 title claims abstract description 56
- 239000003245 coal Substances 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000012806 monitoring device Methods 0.000 title claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 61
- 238000003825 pressing Methods 0.000 claims description 30
- 230000005484 gravity Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 10
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 239000011324 bead Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- 229920001342 Bakelite® Polymers 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Emergency Alarm Devices (AREA)
- Ventilation (AREA)
Abstract
The invention relates to a ventilation monitoring device applied to coal mine safety production, which comprises a bearing plate, wherein the bearing plate comprises a ventilation pipe body, a detection power supply, an alarm, a first detection device and a second detection assembly, wherein the first detection device and the second detection assembly are respectively connected with the detection power supply and the alarm through low-voltage wires to form a low-voltage circuit for detecting wind speed and ventilation faults. The invention has simple structure, easy operation and maintenance and strong pertinence, and two different alarm sounds are sent by the first low-voltage circuit for detecting the over-low wind speed and the second low-voltage circuit for detecting the failure of the ventilator when the over-low wind speed and the failure of the ventilator are met, so that maintenance personnel can find the problem quickly, the problem can be solved quickly, the monitoring performance of the underground ventilation system is greatly improved, the personal safety of the operation personnel is enhanced, and the safety production of a coal mine is ensured.
Description
Technical Field
The invention relates to the technical field of coal mine safety equipment, in particular to a ventilation monitoring device applied to coal mine safety production.
Background
The ventilation of the coal mine is one of the main technical means for ensuring the safe production of the coal mine, can dilute harmful gases such as underground carbon monoxide, carbon dioxide, nitrogen dioxide, sulfur dioxide, hydrogen sulfide, methane and the like and supply enough fresh air to the underground, and has important significance for ensuring the safe production, adjusting the underground climate and creating a good working environment. The ventilator is used as an important facility in a ventilation system of a coal mine, if the ventilation system is influenced by various external environmental factors to cause equipment failure, the ventilator cannot ventilate normally or the wind speed is too low, and the like, harmful gas in the coal mine can be easily discharged in time, the life of underground personnel can be threatened, and the safety production of the coal mine is influenced.
For example, chinese patent publication No. CN206530517U discloses a coal mine ventilation monitoring apparatus, which includes an installation cover, an exhaust fan, an air guiding cover, a standby power supply, an alarm lamp, a wind blocking plate, a connecting rod with a rack, a gear, a pulley, and a semicircular conductive plate, wherein the exhaust fan, the standby power supply, the alarm lamp, and the semicircular conductive plate form a series circuit through a wire, the wind blocking plate is connected to the connecting rod, and the gear is connected to the semicircular conductive plate through a connecting wire passing through the pulley. This equipment theory of operation is for rotating through the exhaust fan and producing wind-force, blow the choke disc, rack and gear engagement on the connecting rod, make two semi-circular conducting strip separations through the connecting wire, make stand-by power supply and warning light be in off-working condition, when the unexpected outage of ventilation system, lack wind-force, the choke disc resets, two semi-circular conducting strip contacts, the series circuit switch-on, stand-by power supply is exhaust fan and warning light power supply, make the colliery continue to keep the ventilation state, the warning light warns people's trouble of discharging simultaneously, maintain the circuit, guarantee workman's life safety. The problem that the ventilator cannot normally ventilate due to equipment failure can be solved, and the problem that the wind speed of the ventilator is too low can not be solved.
Disclosure of Invention
Therefore, in order to solve the problems that the harmful gas in the coal mine cannot be discharged in time due to the fact that the ventilator cannot ventilate normally or the wind speed is too low due to the failure of the equipment in the background art, so that the life of underground personnel is threatened and the safety production of the coal mine is affected, the invention provides the ventilation monitoring device applied to the safety production of the coal mine.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a ventilation monitoring device applied to coal mine safety production comprises a bearing plate, wherein the bearing plate comprises a ventilation pipe body, a detection power supply, an alarm, a first detection device and a second detection assembly, wherein the first detection device and the second detection assembly are respectively connected with the detection power supply and the alarm through low-voltage wires to form a low-voltage circuit for detecting wind speed and detecting faults of a ventilator; wherein the detection power supply is provided with two, the alarm is provided with one,
the first detection device and the second detection assembly respectively comprise a light wind shield and a bottom plate which are slidably mounted in the ventilation pipe body, and a contact switch which is connected with a detection power supply and an alarm through low-voltage wires to form a low-voltage circuit.
As a further improvement of the invention, the first detection device further comprises a driving assembly matched with the light wind shield and an elastic pressing assembly arranged on the bottom plate, and the driving assembly continuously and discontinuously presses the elastic pressing assembly through a swing rod with a bump.
As a further improvement of the invention, the driving assembly comprises a driving power supply, a driving motor and a control switch which is connected with the driving power supply and the driving motor through control wires to form a complete circuit for controlling the on and off of the driving motor, wherein the control switch is matched with the light wind shield.
As a further improvement of the invention, the elastic pressing component comprises a guide rod, a first spring surrounding the guide rod, a pressing plate with an arc-shaped end surface and a top block arranged at the bottom of the pressing plate, wherein the pressing plate is sleeved on the guide rod in a sliding manner and is abutted with one end of the first spring.
As a further improvement of the present invention, the second detection assembly further comprises a self-weight block located directly above the contact switch, the self-weight block abutting against the contact switch by its own weight to form a closed circuit for the low voltage circuit for detecting the ventilation failure.
As a further improvement of the invention, the self-weight block is connected with the light wind shield through a light rope.
As a further improvement of the invention, the side wall of the interior of the ventilation pipe body is correspondingly provided with a guide sliding chute and a guide dovetail groove, wherein the light wind shield matched with the first detection device is arranged in the guide sliding chute in a sliding manner, a second spring is connected between the light wind shield and the guide sliding chute, and the light wind shield matched with the second detection assembly is arranged in the guide dovetail groove in a sliding manner.
As a further improvement of the invention, one end of the ventilation pipe body is provided with a threaded assembling hole.
As a further improvement of the invention, a lead groove is formed on the bottom plate.
The working principle is as follows: when the ventilator normally works, a first low-voltage circuit for detecting the wind speed in the ventilation pipe body on the left side and a second low-voltage circuit for detecting the ventilator fault on the right side are both in an off state.
When the wind speed of the ventilator is too low, the wind power in the ventilation pipe body is reduced, the left light wind shield slides to the rear side under the action of a second spring to stop abutting against the control switch, the control switch is turned on, a control circuit continuously formed by the driving power supply, the driving motor, the control switch and the control lead is electrified, the driving motor drives the swing rod to rotate clockwise, the lug can abut against one end of the pressing plate firstly to press the pressing plate downwards, the ejector block abuts against the left contact switch to enable the low-voltage circuit to form a closed circuit for detection, then the lug abuts against the arc-shaped end surface on the pressing plate, the ejector block continues to abut against the left contact switch, finally the ejector block is separated from the arc-shaped end surface on the pressing plate, the pressing plate resets under the action force of the first spring, the left contact switch can continuously open and close through the continuous swing of the swing rod, so that the first low-voltage circuit continuously forms a closed, therefore, the alarm in the first low-voltage circuit can give out continuous and discontinuous alarm sound to warn maintenance personnel that the wind speed is too low and inform the operation personnel to evacuate.
When the ventilator fails to exhaust air, wind power is lacked, the light wind shields on the left and right sides slide to the final end position under the action of the second spring and the self-weight block, the light wind shield on the left side is separated from the control switch, the contact switch on the left side is disconnected, and the alarm in the first low-voltage circuit does not give continuous and intermittent alarm sound any more; the dead weight block falls to the lowest point and abuts against the contact switch on the right side, so that the second low-voltage circuit forms a closed circuit, an alarm in the second low-voltage circuit sends out connected alarm sound, maintenance personnel are warned that the ventilator fails, and the operation personnel are notified to evacuate.
When two kinds of obstructed circumstances take place according to ventilation system through above-mentioned two low voltage circuit, correspond and send two kinds of different alarm sound, maintenance personal only need through the fault situation that differentiateing different alarm sound corresponds, can find out the problem place fast effectively to solve the problem fast.
The invention has the beneficial effects that:
the invention has simple structure, easy operation and maintenance and strong pertinence, and sends two different alarm sounds when meeting the conditions of over-low wind speed and ventilator failure through the first low-voltage circuit for detecting over-low wind speed and the second low-voltage circuit for detecting ventilator failure, so that maintenance personnel can quickly find problems, thereby quickly solving the problems, greatly improving the monitoring performance of the underground ventilation system, enhancing the personal safety of operation personnel and ensuring the safe production of coal mines.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;
FIG. 3 is a schematic sectional view of B-B in FIG. 1.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained in the following with the accompanying drawings and the embodiments.
As shown in fig. 1 to 3, a ventilation monitoring device applied to coal mine safety production comprises a bearing plate 1, wherein the bearing plate 1 comprises a ventilation pipe body 2, a detection power supply 6, an alarm 7, a first detection device and a second detection assembly, wherein the first detection device and the second detection assembly are respectively connected with the detection power supply 6 and the alarm 7 through low-voltage wires 5 to form a low-voltage circuit for detecting wind speed and ventilation faults; specifically, the ventilation pipe body 2 is installed on the bearing plate 1 through a support frame and a fixing screw, two detection power supplies 6 are arranged and fixed at the left side and the right side of the bottom of the ventilation pipe body 2 respectively, one alarm 7 is arranged and fixed at the middle position of the bottom of the ventilation pipe body 2, and the detection power supply 6, the first detection device and the alarm 7 on the left side are connected through a low-voltage wire 5 to form a first low-voltage circuit capable of detecting the wind speed inside the ventilation pipe body 2; the right detection power supply 6, the second detection assembly and the alarm 7 are connected through a low-voltage lead 5 to form a second low-voltage circuit capable of detecting faults of the ventilator; the two low voltage circuits share one alarm 7 but are independent of each other.
The first detection device and the second detection assembly respectively comprise a light wind shield 4 and a bottom plate 3 which are slidably mounted in the ventilation pipe body 2, and a contact switch 8 which is connected with a detection power supply 6 and an alarm 7 through low-voltage wires 5 to form a low-voltage circuit. Specifically, the two light wind shields 4 are respectively arranged in bilateral symmetry and are slidably mounted inside the ventilation pipe body 2 along the length direction of the ventilation pipe body 2, the two bottom plates 3 are respectively arranged in bilateral symmetry and are fixedly mounted on the bearing plate 1 below the ventilation pipe body 2, similarly, the two contact switches 8 are also arranged and are respectively correspondingly mounted on the two bottom plates 3, each contact switch 8 is connected with a bonding sheet 81, and the contact switches 8 are connected with the low-voltage lead 5 through the bonding sheets 81; furthermore, be located ventilation body 2 and loading board 1 still be provided with dust guard 21 all around, dust guard 21 is installed through dismantled and assembled mode, and its effect lies in preventing that the dust from falling into detection device on, reduces life and influence detection effect. In addition, the bottom plate 3 in this embodiment is a wooden plate, and plays a role of insulation.
The first detection device further comprises a driving assembly matched with the light wind shield 4 and an elastic pressing assembly arranged on the bottom plate 3, and the driving assembly performs reciprocating pressing on the elastic pressing assembly through a swing rod 13 with a lug 131.
The driving assembly comprises a driving power supply 9, a driving motor 10 and a control switch 11 which is connected with the driving power supply 9 and the driving motor 10 through a control lead 12 to form a complete circuit for controlling the driving motor 10 to be turned on and turned off, wherein the control switch 11 is matched with the light wind shield 4. Specifically, driving power supply 9 is fixed in 2 outside bottoms of ventilation body, driving motor 10 passes through L shape hanger plate 101 and installs in 2 outside bottoms of ventilation body, control switch 11 sets up on the slip track of left side light deep bead 4 and is located slip track middle part position, control switch 11 is push type elastic switch, and when left light deep bead 4 under the condition that the wind speed was crossed lowly, it can follow the slip track and slide to the slip track middle part of backward side, with the contact of push type elastic control switch 11 and press it, make and constitute a closed circuit through control wire 12 and driving power supply 9, the circuit that driving motor 10 is connected the formation, control driving motor 10 drives the pendulum rod 13 swing, then carries out continuous intermittent type through lug 131 to the elasticity pressure subassembly and presses down.
The elastic pressing assembly comprises a guide rod 14, a first spring 15 surrounding the guide rod 14, a pressing plate 16 with an arc-shaped end face and a top block 17 arranged at the bottom of the pressing plate 16, wherein the pressing plate 16 is in sliding sleeve on the guide rod 14 and is abutted against one end of the first spring 15. Specifically, the guide rod 14 is vertically fixed on the bottom plate 3, the first spring 15 is used for resetting the pressure plate 16, and a circle center corresponding to an arc-shaped end surface on the pressure plate 16 coincides with an axis of a rotating shaft of the driving motor 10 in the front-rear direction.
The second detection assembly further comprises a self-weight block 18 positioned right above the contact switch 8, and the self-weight block 18 abuts against the contact switch 8 through self gravity to form a closed circuit for detecting a low-voltage circuit of the ventilation fault. Specifically, the self-weight 18 is a heavy weight block of thick, insulated bakelite.
Further, the self-weight 18 is connected to the light wind deflector 4 by a light cord 19. Specifically, the light weight cord 19 is a thin steel wire with high toughness, and the self-weight 18 is located at a position below the extreme end of the sliding track of the light wind deflector 4 on the right side.
The inside lateral wall of ventilation body 2 is gone up to correspond and is opened direction spout 2a, direction dovetail 2b, wherein with detection device complex light deep bead 4 slidable mounting in direction spout 2a and with be connected with No. two springs 20 between direction spout 2a, with No. two detection component complex light deep bead 4 slidable mounting in direction dovetail 2 b. Specifically, two guide chutes 2a and two guide dovetail grooves 2b are symmetrically arranged, wherein the guide chutes 2a are distributed on the upper and lower side walls on the left side of the ventilation pipe body 1, the guide dovetail grooves 2b are distributed on the upper and lower side walls on the right side of the ventilation pipe body 1, the light wind shield 4 on the left side is slidably mounted in the guide chutes 2a, and the light wind shield 4 on the right side is slidably mounted in the guide dovetail grooves 2 b.
One end of the ventilation pipe body 2 is provided with an assembly threaded hole 2 c. Specifically, the mounting threaded hole 2c is disposed at the rear end of the ventilation duct body 2, and is used for being fixedly connected with a ventilation duct in a ventilation system.
And a lead groove 3a is formed on the bottom plate 3. Specifically, each of the base plates 3 is provided with two lead grooves 3a for connecting the low-voltage lead 5 of the detection power supply 6 to the left side of the upper bonding tab 81 of the contact switch 8 and for connecting the low-voltage lead 5 of the alarm 7 to the right side of the upper bonding tab 81 of the contact switch 8 to form a complete low-voltage circuit.
When in use, the device is fixedly arranged at the air outlet of the ventilation pipeline in the ventilation system through the assembly threaded hole 2 c.
The working principle is as follows: when the ventilator normally works, the two light wind shields 4 are positioned at the foremost positions of the corresponding guide sliding chutes 2a and the corresponding guide dovetail grooves 2b under the action of wind force, the second spring 20 is compressed, and a first low-voltage circuit for detecting the wind speed in the ventilator body 2 from the left side and a second low-voltage circuit for detecting the ventilator fault from the right side are both in an off state;
when the wind speed of the ventilator is too low, the wind power in the ventilator body 2 is reduced, the left light wind shield 4 slides to the rear side under the action of the second spring 20 to be abutted with the control switch 11 and stop, the control switch 11 is opened through the pressing of the left light wind shield 4, a control circuit formed by the driving power supply 9, the driving motor 10, the control switch 11 and the control lead 12 is electrified, the driving motor 10 drives the swing rod 13 to rotate clockwise, the swing rod 13 presses the pressing plate 16 downwards through the abutting of the lug 131 and one end of the pressing plate 16 in the rotating process, the ejector block 17 abuts against the left contact switch 8, the low-voltage circuit forms a closed circuit for detection, the lug 131 abuts against the arc-shaped end surface on the pressing plate 16, the ejector block 17 continues to abut against the left contact switch 8, finally the ejector block 17 is separated from the arc-shaped end surface on the pressing plate 16, the pressing plate 16 is reset under the acting force of the first spring 15, therefore, through the continuous swing of the swing rod 13, the top block 17 can be abutted with the left contact switch 8 continuously and discontinuously, so that a closed circuit is formed continuously and discontinuously in the first low-voltage circuit, the alarm 7 in the first low-voltage circuit gives out continuous and discontinuous alarm sound, and maintenance personnel are warned that the wind speed is too low and notified to evacuate.
When the ventilator fails to exhaust air, wind power is lacked, the light wind shields 4 on the left and right sides slide to the final end positions of the corresponding guide sliding groove 2a and the corresponding guide dovetail groove 2b under the action of the second spring 20 and the self-weight block 18, wherein the light wind shield 4 on the left side is separated from the control switch 11, the contact switch 8 on the left side is disconnected, and the alarm 7 in the first low-voltage circuit does not give continuous intermittent alarm sound any more; and along with the light wind shield 4 on the right side slides to the rearmost end position of the guide dovetail groove 2b, the self-weight block 18 descends to the lowest point and abuts against the contact switch 8 on the right side, so that the second low-voltage circuit forms a closed circuit, the alarm 7 in the second low-voltage circuit sends out a connected alarm sound, and maintenance personnel are warned that the ventilator fails and are informed of evacuation of operators.
When two kinds of obstructed circumstances take place according to ventilation system through above-mentioned two low voltage circuit, correspond and send two kinds of different alarm sound, maintenance personal only need through the fault situation that differentiateing different alarm sound corresponds, can find out the problem place fast effectively to quick solution problem has guaranteed the operation personnel life safety in the pit and has guaranteed the colliery safety in production.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The utility model provides a ventilation monitoring device for among coal mine safety production, includes loading board (1), its characterized in that: the bearing plate (1) comprises a ventilation pipe body (2), a detection power supply (6), an alarm (7), a first detection device, a second detection assembly and a third detection assembly, wherein the first detection device is connected with the detection power supply (6) and the alarm (7) through low-voltage leads (5) to form a low-voltage circuit for detecting wind speed, and the second detection assembly is connected with the detection power supply (6) and the alarm (7) through the low-voltage leads (5) to form a low-voltage circuit for detecting ventilation fan faults;
the first detection device and the second detection assembly respectively comprise a light wind shield (4) which is slidably arranged in the ventilation pipe body (2), a bottom plate (3) and a contact switch (8) which is connected with a detection power supply (6) and an alarm (7) through a low-voltage lead (5) to form a low-voltage circuit; the second detection assembly further comprises a self-weight block (18) positioned right above the contact switch (8), and the self-weight block (18) abuts against the contact switch (8) through self gravity to form a closed circuit for a low-voltage circuit for detecting the ventilation fault;
the first detection device further comprises a driving assembly matched with the light wind shield (4) in the first detection device and an elastic pressing assembly arranged on the bottom plate (3), and the driving assembly continuously and discontinuously presses the elastic pressing assembly through a swing rod (13) with a lug (131);
the driving assembly comprises a driving power supply (9), a driving motor (10) and a control switch (11) which is connected with the driving power supply (9) and the driving motor (10) through a control lead (12) to form a closed circuit for controlling the driving motor (10) to be turned on and turned off, and the control switch (11) is matched with the light wind shield (4) in the first detection device;
the elastic pressing assembly comprises a guide rod (14), a first spring (15) surrounding the guide rod (14), a pressing plate (16) with an arc-shaped end face and a top block (17) arranged at the bottom of the pressing plate (16), and the pressing plate (16) is in sliding sleeve on the guide rod (14) and is abutted against one end of the first spring (15);
the self-weight block (18) is connected with a light wind shield (4) in the second detection assembly through a light rope (19);
a guide sliding groove (2a) and a guide dovetail groove (2b) are correspondingly formed in the side wall of the inner part of the ventilation pipe body (2), wherein a light wind shield (4) matched with the first detection device is slidably mounted in the guide sliding groove (2a), a second spring (20) is connected between the light wind shield and the guide sliding groove (2a), and the light wind shield (4) matched with the second detection assembly is slidably mounted in the guide dovetail groove (2 b);
one end of the ventilation pipe body (2) is provided with an assembly threaded hole (2 c);
the bottom plate (3) is provided with a lead groove (3 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910399704.3A CN110107359B (en) | 2019-05-14 | 2019-05-14 | Be applied to ventilation monitoring device in coal mine safety production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910399704.3A CN110107359B (en) | 2019-05-14 | 2019-05-14 | Be applied to ventilation monitoring device in coal mine safety production |
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| CN110107359A CN110107359A (en) | 2019-08-09 |
| CN110107359B true CN110107359B (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910399704.3A Active CN110107359B (en) | 2019-05-14 | 2019-05-14 | Be applied to ventilation monitoring device in coal mine safety production |
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| CN (1) | CN110107359B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111412007B (en) * | 2020-04-07 | 2022-10-18 | 河南工程学院 | Mine ventilation device |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1084459A1 (en) * | 1982-08-11 | 1984-04-07 | Bernadskij Vadim G | Method and apparatus for automatic control of air distribution in ventilation mains of mines |
| JPH10266799A (en) * | 1997-03-28 | 1998-10-06 | Toshiba Corp | Tunnel control device |
| JPH11303600A (en) * | 1998-04-24 | 1999-11-02 | Kumagai Gumi Co Ltd | Laying structure of signal cable for blower |
| CN201486594U (en) * | 2009-07-23 | 2010-05-26 | 费江海 | Air pressure alarm device of transducer of forced air-cooled mine |
| CN103104531B (en) * | 2013-01-15 | 2015-08-12 | 莱芜钢铁集团有限公司 | A kind of fault detection method of blower fan undercapacity and device |
| CN203430572U (en) * | 2013-07-24 | 2014-02-12 | 襄垣县树元电器有限公司 | Working state detection and alarm device for mine air supply system |
| CN103671190B (en) * | 2013-09-18 | 2016-04-06 | 北京工业大学 | The early stage mine fan online system failure diagnosis of a kind of intelligence |
| CN103883343B (en) * | 2014-03-24 | 2016-01-20 | 中国矿业大学 | Based on the coal mine main ventilator not blowing-out method of falling machine of adjusting rotor blade |
| CN104179529B (en) * | 2014-08-26 | 2016-05-11 | 中国矿业大学 | Mine Ventilator intelligent monitoring and fault diagnosis system based on Internet of Things and cloud computing |
| CN206530517U (en) * | 2017-03-12 | 2017-09-29 | 杜刚 | A kind of coalmine ventilation monitoring device |
| CN207554395U (en) * | 2017-10-25 | 2018-06-29 | 广东电网有限责任公司惠州供电局 | A kind of transformer cooler fan operation status indicator |
| CN208546340U (en) * | 2018-05-30 | 2019-02-26 | 天津平高智能电气有限公司 | Fan operation monitors system and blower fan system |
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