CN114518435B - Carbon dioxide sensor assembly for coal mine - Google Patents
Carbon dioxide sensor assembly for coal mine Download PDFInfo
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- CN114518435B CN114518435B CN202210176586.1A CN202210176586A CN114518435B CN 114518435 B CN114518435 B CN 114518435B CN 202210176586 A CN202210176586 A CN 202210176586A CN 114518435 B CN114518435 B CN 114518435B
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- carbon dioxide
- filter screen
- dioxide sensor
- groove
- protective shell
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/004—Specially adapted to detect a particular component for CO, CO2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a carbon dioxide sensor assembly for a coal mine, which comprises a carbon dioxide sensor main body, wherein the bottom of the carbon dioxide sensor main body is provided with a gas-sensitive probe, the outer side of the gas-sensitive probe is provided with a protective shell, the outer side of the protective shell is provided with a vent hole, the bottom of the protective shell is provided with an annular thread groove, the annular thread groove is provided with a supporting cover, the supporting cover is provided with a dustproof assembly convenient for limiting and mounting, and the outer side of the protective shell is provided with a protective assembly with a blowing and cleaning function; according to the invention, the protective shell of the gas-sensitive probe is additionally provided with the plurality of vent holes, carbon dioxide in a mine enters through the plurality of vent holes, and the concentration detection effect of the carbon dioxide sensor is facilitated in a plurality of directions, so that the gas-sensitive probe is protected, the carbon dioxide sensor is facilitated to be used in the coal exploitation environment, and the personal safety is ensured.
Description
Technical Field
The invention relates to the technical field of mine sensors, in particular to a carbon dioxide sensor assembly for a coal mine.
Background
The gas-sensitive probe is used as an important precision component of the mining carbon dioxide sensor, but the gas-sensitive probe of the carbon dioxide sensor generally adopts a single-layer filter screen to filter coal dust, the coal dust passes through the filter screen on the carbon dioxide sensor and is attached to the sensing element of the gas-sensitive probe after long-term use, and meanwhile, the gas-sensitive probe only absorbs carbon dioxide from one direction, the concentration of the carbon dioxide cannot be detected in multiple directions.
Disclosure of Invention
The invention aims to provide a carbon dioxide sensor assembly for a coal mine, which is characterized in that a plurality of vent holes are additionally arranged on a protective shell of a gas-sensitive probe, carbon dioxide in a mine enters through the plurality of vent holes, the concentration detection effect of the carbon dioxide sensor is facilitated in a plurality of directions, a double-layer filter screen is additionally arranged on the protective shell of the gas-sensitive probe, and the gas-sensitive probe is further protected by the cooperation of a protection assembly, so that the use of the carbon dioxide sensor is prevented from being influenced by impact force, and the problems in the background art are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a carbon dioxide sensor subassembly for colliery, includes the carbon dioxide sensor main part, the bottom of carbon dioxide sensor main part is provided with gas-sensitive probe, gas-sensitive probe's the outside is provided with the protective housing, the air vent has been seted up in the outside of protective housing, annular thread groove has been seted up to the bottom of protective housing, be provided with the supporting cover on the annular thread groove, the supporting is covered and is provided with the dustproof subassembly of being convenient for spacing installation, the outside of protective housing sets up the protective assembly that has the clearance function of blowing.
Preferably, the air vent is provided with a plurality of, and a plurality of air vents are circumferentially distributed around the protective housing, the supporting cover is of a T-shaped annular structure, and the top of the supporting cover is connected with the annular thread groove through internal and external threads.
Preferably, the dustproof assembly comprises a first filter screen and a second filter screen, a positioning annular groove is formed in the supporting cover, a fan-shaped groove is formed in the outer side of the supporting cover, the first filter screen and the second filter screen are respectively attached to the inner side and the outer side of the protective shell, and the first filter screen and the second filter screen are both covered on the vent holes.
Preferably, the fan-shaped grooves are formed in a plurality, the fan-shaped grooves are circumferentially distributed around the supporting cover, the fan-shaped grooves are communicated with the positioning annular groove, the first filter screen is abutted between the carbon dioxide sensor main body and the supporting cover, and the bottom of the second filter screen is spliced on the positioning annular groove.
Preferably, the protection assembly comprises a fixed seat, the fixed seat is welded on the outer side of the protection shell, a clamping groove is formed in the bottom of the fixed seat, the top of the second filter screen is abutted to the clamping groove, and a plurality of fixed seats and ventilation holes are distributed in a staggered mode.
Preferably, the side of fixing base has been seted up the movable groove, it has the guide bar to peg graft on the movable groove, it has the movable block to peg graft to slide on the guide bar, the movable block is provided with two, and two movable blocks are distributed about the central symmetry of guide bar, the last first reset spring that has cup jointed that is located between movable groove and the movable block of guide bar.
Preferably, the both sides of fixing base all are provided with the seat of blowing, the inboard of seat of blowing is provided with the spout, the gas collecting hole has been seted up to the outside of seat of blowing, be provided with the dryer in the spout, the slip grafting has the butt piece on the dryer.
Preferably, the air duct and the air collecting hole are communicated with each other, the abutting block is of a T-shaped structure, and a second reset spring is arranged between the abutting block and the inner wall of the air duct.
Preferably, the side of movable block is provided with the kicking block in the spout, correspond between kicking block and the butt piece and set up, two the side of movable block all articulates there is the connecting rod, two the one end of connecting rod articulates there is the guard plate, the guard plate is convex structure, and with the air vent between crisscross distribution.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the protective shell of the gas-sensitive probe is additionally provided with the plurality of vent holes, carbon dioxide in a mine enters through the plurality of vent holes, the concentration detection effect of the carbon dioxide sensor is facilitated in a plurality of directions, the protective shell of the gas-sensitive probe is additionally provided with the double-layer filter screen, and the protective assembly is matched, so that the gas-sensitive probe is protected, the sensitivity of the carbon dioxide sensor is prevented from being influenced by impact force, the carbon dioxide sensor is facilitated to be used in the coal mining environment, and the personal safety is ensured;
2. according to the invention, the first filter screen and the second filter screen are fixed in a limiting manner, so that the first filter screen and the second filter screen form a double-layer filter screen structure, coal dust is prevented from passing through the filter screen on the carbon dioxide sensor and attaching to the gas-sensitive probe sensing element, and the filtering effect of the probe of the carbon dioxide sensor is further improved;
3. according to the invention, the protection component is additionally arranged on the outer side of the protection shell, so that the omnidirectional buffer protection effect of the protection shell is realized, the protection effect of the gas-sensitive probe is facilitated, the concentrated air flow of the air duct is triggered, the air flow in the air duct is blown away through the air collecting holes, and then the coal dust adhered on the second filter screen at the vent hole is blown off, so that the entry of carbon dioxide in a mine through a plurality of vent holes is facilitated, and the sensitivity of the gas-sensitive probe of the carbon dioxide sensor is further improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an exploded view of the dust assembly of the present invention;
FIG. 3 is a schematic view of the protective assembly of the present invention;
FIG. 4 is a schematic structural view of a fixing base of the present invention;
FIG. 5 is a cross-sectional view of the support cap of the present invention;
FIG. 6 is a cross-sectional view of a mounting bracket of the present invention;
fig. 7 is an enlarged schematic view of the structure of fig. 6 a according to the present invention.
In the figure: a carbon dioxide sensor body 1; a gas sensitive probe 2; a protective case 3; a vent 4; an annular thread groove 5; a support cover 6; positioning the annular groove 61; a fan-shaped groove 62; a first screen 7; a second screen 8; a fixed seat 9; a card slot 91; a moving groove 92; a guide rod 93; a moving block 94; a first return spring 95; a blowing seat 96; a chute 961; a gas collecting hole 962; an air duct 963; an abutment block 964; a second return spring 965; a top block 97; a connecting rod 98; and a shielding plate 99.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 7, the present invention provides a technical solution: the utility model provides a carbon dioxide sensor subassembly for colliery, including carbon dioxide sensor main part 1, carbon dioxide sensor main part 1 includes infrared carbon dioxide sensor, the main part body, the back lid, GRG5 module, the handle, components such as bee calling organ, the bottom fixed mounting of carbon dioxide sensor main part 1 has gas-sensitive probe 2, protective housing 3 is installed in the outside of gas-sensitive probe 2, vent 4 has been seted up in the outside of protective housing 3, vent 4 is provided with a plurality ofly, a plurality of vent 4 are circumferentially distributed around protective housing 3, a plurality of vent 4 are favorable to the carbon dioxide in the mine to get into carbon dioxide sensor's gas-sensitive probe 2 from a plurality of directions, thereby guarantee the sensitivity that carbon dioxide sensor detects the two appearance carbons.
The annular thread groove 5 has been seted up to the bottom of protective housing 3, fixed mounting has the supporting cover 6 on the annular thread groove 5, the supporting cover 6 is "T" type annular structure, internal and external threaded connection between the top of supporting cover 6 and the annular thread groove 5, be convenient for support and between cover 6 and the protective housing 3 fixed connection, be provided with the dustproof subassembly of being convenient for spacing installation on the supporting cover 6, dustproof subassembly includes first filter screen 7 and second filter screen 8, the location ring channel 61 has been seted up on the supporting cover 6, fan-shaped groove 62 has been seted up in the outside of supporting cover 6, fan-shaped groove 62 is provided with a plurality of, fan-shaped groove 62 is circumferentially distributed around supporting cover 6, communicate between fan-shaped groove 62 and the location ring channel 61, be convenient for the coal dust falls to in location ring channel 61 and the fan-shaped groove 62 through second filter screen 8, and then to the storage of coal dust, only need slope carbon dioxide sensor main part 1 coal dust falls to the ground under the action of gravity, thereby the clearance of coal dust of being convenient for.
The first filter screen 7 and the second filter screen 8 laminate respectively in the inside and outside of protective housing 3, first filter screen 7 and second filter screen 8 are annular structure, first filter screen 7 and second filter screen 8 all cover in air vent 4 setting, first filter screen 7 butt is between carbon dioxide sensor main part 1 and supporting lid 6, the spacing of first filter screen 7 of being convenient for is fixed, the bottom of second filter screen 8 is pegged graft on location ring channel 61, be convenient for fix a position second filter screen 8, and then make things convenient for the dismouting of first filter screen 7 and second filter screen 8, first filter screen 7 and second filter screen 8 form double-deck filter screen structure, prevent that the coal dust from passing through the filter screen on the carbon dioxide sensor and attaching on the gas-sensitive probe sensing element, further improved the probe department filter effect of carbon dioxide sensor, and then protection gas-sensitive probe 2 is favorable to carbon dioxide sensor to using under the environment of coal exploitation.
The outside of protective housing 3 sets up the protective component that has the clearance function of blowing, protective component includes fixing base 9, fixing base 9 welding is on the outside of protective housing 3, fixing base 9 is provided with a plurality ofly, crisscross distribution between a plurality of fixing bases 9 and the air vent 4, the setting of a plurality of fixing bases 9 is convenient for follow-up protective component is to the omnidirectional buffering protection effect of protective housing 3, be favorable to the guard action of gas-sensitive probe 2, draw-in groove 91 has been seted up to the bottom of fixing base 9, the top butt of second filter screen 8 is on draw-in groove 91, the butt between second filter screen 8 passes through fixing base 9 and the supporting cover 6, the spacing of second filter screen 8 of being convenient for is fixed, avoid the random removal of second filter screen 8 to influence the filter effect of air vent 4, with first filter screen 7 butt on carbon dioxide sensor main body 1, with second filter screen 8 butt on draw-in groove 91, through screwing up supporting cover 6 on annular thread groove 5, thereby realize spacing of first filter screen 7 and second filter screen 8.
The side of fixing base 9 has been seted up and has been moved groove 92, it has guide bar 93 to peg graft on the groove 92, it has movable block 94 to peg graft on the guide bar 93, movable block 94 is provided with two, two movable blocks 94 are distributed about the central symmetry of guide bar 93, first reset spring 95 has been cup jointed between groove 92 and the movable block 94 to be located on the guide bar 93, the spring force effect of first reset spring 95 plays the cushioning effect to the removal of two movable blocks 94, the both sides of fixing base 9 have all welded the seat 96 of blowing, spout 961 has been seted up to the inboard of seat 96 of blowing, gas collecting hole 962 has been seted up in the outside of seat 96 of blowing, the direction of gas collecting hole 962 is towards air vent 4.
The air duct 963 is welded in the sliding groove 961, the air duct 963 is of a block hollow structure, the air duct 963 is connected with the abutting blocks 964 in a sliding manner, the air duct 963 is communicated with the air collecting holes 962, the abutting blocks 964 are of a T-shaped structure, a second reset spring 965 is fixedly connected between the abutting blocks 964 and the inner wall of the air duct 963, the side faces of the moving blocks 94 are positioned in the sliding groove 961, the top blocks 97 are welded in the sliding groove 961, the top blocks 97 and the abutting blocks 964 are correspondingly arranged, the side faces of the two moving blocks 94 are hinged with the connecting rods 98, one ends of the two connecting rods 98 are hinged with the protecting plates 99, the protecting plates 99 are of a circular arc-shaped structure and are distributed with the air holes 4 in a staggered manner, when the two moving blocks 94 move to the two sides of the fixed seat 9, the top blocks 97 squeeze the abutting blocks 964 to move towards the air duct 963, air flow in the moment is pushed by the abutting blocks 964 to blow off the air collecting holes 962, and then coal dust adhered on the second filter screen 8 at the air holes 4 is blown down, carbon dioxide in a mine is facilitated to enter through the plurality of the air holes 4, the air sensors are further improved in sensitivity of the carbon dioxide sensor 2.
When the carbon dioxide sensor is actually used, carbon dioxide in a mine enters a protective shell 3 of the carbon dioxide sensor from multiple directions when the carbon dioxide sensor main body 1 works, a buzzer alarms to remind workers of the concentration of the carbon dioxide detected by the gas-sensitive probe 2, the concentration detection effect of the carbon dioxide sensor is facilitated in multiple directions, a first filter screen 7 and a second filter screen 8 are additionally arranged on the protective shell 3 of the gas-sensitive probe 2, the first filter screen 7 is abutted to the carbon dioxide sensor main body 1, the second filter screen 8 is abutted to a clamping groove 91, and a supporting cover 6 is screwed on an annular thread groove 5, so that limiting fixation of the first filter screen 7 and the second filter screen 8 is realized, the first filter screen 7 and the second filter screen 8 form a double-layer filter screen structure, coal dust is prevented from passing through the filter screen on the carbon dioxide sensor and adhering to a sensing element of the gas-sensitive probe, the filtering effect of the probe of the carbon dioxide sensor is further improved, and the gas-sensitive probe 2 is further protected, and the carbon dioxide sensor is facilitated to be used in a coal exploitation environment; when the carbon dioxide sensor is impacted in the complex mine environment, the protection plate 99 is touched at first, the protection plate 99 moves towards the direction close to the protection shell 3 under the action of external force, at this moment, the protection plate 99 pushes the two connecting rods 98 to be unfolded and moved, the two moving blocks 94 move towards the two sides of the fixed seat 9, the buffer effect is achieved on the movement of the two moving blocks 94 under the action of the elastic force of the first reset spring 95, and then the protection shell 3 is buffered and protected, the protection assembly is convenient for protecting the protection shell 3 in an all-directional buffer protection effect, the sensitivity of the carbon dioxide sensor gas-sensitive probe 2 is prevented from being influenced by impact force, in the process, when the two moving blocks 94 move towards the two sides of the fixed seat 9, the top block 97 presses the abutting block 964 to move towards the inner direction of the air cylinder 963, and the air current in the air cylinder 963 is pushed by the abutting block 964 at this moment to blow off through the air collecting holes 962, and then coal dust adhered on the second filter screen 8 at the air vent 4 is blown off, carbon dioxide in the mine is facilitated to enter through the plurality of air vents 4, the coal dust falls to the positioning filter 8 and the fan-shaped probe 62 through the second filter screen 8, the sensitivity of the carbon dioxide sensor gas-sensitive probe 2 is prevented from being influenced by impact force, and the sensitivity of the carbon dioxide sensor gas-sensitive probe 2 is further improved, and the coal dust is required to be cleaned down in the air-sensitive to the main body.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A carbon dioxide sensor assembly for a coal mine comprising a carbon dioxide sensor body, characterized in that: the bottom of the carbon dioxide sensor main body is provided with a gas-sensitive probe, the outer side of the gas-sensitive probe is provided with a protective shell, the outer side of the protective shell is provided with vent holes, the bottom of the protective shell is provided with an annular thread groove, the annular thread groove is provided with a supporting cover, the supporting cover is provided with a dustproof component convenient for limiting installation, the dustproof component comprises a first filter screen and a second filter screen, the supporting cover is provided with a positioning annular groove, the outer side of the supporting cover is provided with a fan-shaped groove, the first filter screen and the second filter screen are respectively attached to the inner side and the outer side of the protective shell, the first filter screen and the second filter screen are both covered on the vent holes, the fan-shaped groove is provided with a plurality of fan-shaped grooves which are circumferentially distributed around the supporting cover, the fan-shaped grooves are communicated with the positioning annular groove, the first filter screen is abutted between the carbon dioxide sensor main body and the supporting cover, the bottom of the second filter screen is inserted on the positioning annular groove, the outer side of the protective shell is provided with a protection component with a blowing cleaning function, the protection component comprises a fixed seat, the fixed seat is welded on the outer side of the protective shell, a clamping groove is formed in the bottom of the fixed seat, the top of the second filter screen is abutted on the clamping groove, a plurality of fixed seats and vent holes are distributed in a staggered manner, two sides of the fixed seat are respectively provided with a blowing seat, the inner side of the blowing seat is provided with a sliding groove, the outer side of the blowing seat is provided with a vent hole, an air duct is arranged in the sliding groove, an abutting block is inserted on the air duct in a sliding manner, the air duct is communicated with the vent hole, and the abutting block is of a T-shaped structure, and a second reset spring is arranged between the abutting block and the inner wall of the air duct.
2. A carbon dioxide sensor assembly for a coal mine as claimed in claim 1, wherein: the utility model discloses a support cover, including the protective housing, the air vent is provided with a plurality of, and a plurality of air vents are circumferentially distributed around the protective housing, the support cover is "T" type annular structure, internal and external threaded connection between the top of support cover and the annular thread groove.
3. A carbon dioxide sensor assembly for a coal mine as claimed in claim 1, wherein: the side of fixing base has been seted up the shifting chute, it has the guide bar to peg graft on the shifting chute, it has the movable block to peg graft on the guide bar to slide, the movable block is provided with two, and two movable blocks are distributed about the central symmetry of guide bar, be located between shifting chute and the movable block on the guide bar and cup jointed first reset spring.
4. A carbon dioxide sensor assembly for a coal mine as claimed in claim 3, wherein: the side of movable block is provided with the kicking block in being located the spout, correspond the setting between kicking block and the butt piece, two the side of movable block all articulates there is the connecting rod, two the one end of connecting rod articulates there is the guard plate, the guard plate is convex structure, and with the ventilation hole between crisscross distribution.
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| CN202210176586.1A CN114518435B (en) | 2022-02-25 | 2022-02-25 | Carbon dioxide sensor assembly for coal mine |
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| CN202210176586.1A CN114518435B (en) | 2022-02-25 | 2022-02-25 | Carbon dioxide sensor assembly for coal mine |
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