CN114518435A - Carbon dioxide sensor assembly for coal mine - Google Patents
Carbon dioxide sensor assembly for coal mine Download PDFInfo
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- CN114518435A CN114518435A CN202210176586.1A CN202210176586A CN114518435A CN 114518435 A CN114518435 A CN 114518435A CN 202210176586 A CN202210176586 A CN 202210176586A CN 114518435 A CN114518435 A CN 114518435A
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- carbon dioxide
- dioxide sensor
- filter screen
- air
- coal mine
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 152
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 76
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 76
- 239000003245 coal Substances 0.000 title claims abstract description 18
- 239000000523 sample Substances 0.000 claims abstract description 38
- 230000001681 protective effect Effects 0.000 claims abstract description 35
- 238000007664 blowing Methods 0.000 claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 238000005065 mining Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000002817 coal dust Substances 0.000 description 16
- 230000035945 sensitivity Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 101000801195 Homo sapiens TLE family member 5 Proteins 0.000 description 1
- 102100033766 TLE family member 5 Human genes 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 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
- 210000000056 organ Anatomy 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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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—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/004—CO or CO2
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Combustion & Propulsion (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a carbon dioxide sensor assembly for a coal mine, which comprises a carbon dioxide sensor main body, wherein a gas-sensitive probe is arranged at the bottom of the carbon dioxide sensor main body, a protective shell is arranged outside the gas-sensitive probe, a vent hole is formed outside the protective shell, an annular thread groove is formed in the bottom of the protective shell, a supporting cover is arranged on the annular thread groove, a dustproof assembly convenient for limiting and mounting is arranged on the supporting cover, and a protective assembly with a blowing cleaning function is arranged outside the protective shell; according to the invention, the plurality of vent holes are additionally arranged on the protective shell of the 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 multiple directions, the gas-sensitive probe is further protected, the carbon dioxide sensor is facilitated to be used in the coal mining environment, and thus the personal safety is ensured.
Description
Technical Field
The invention relates to the technical field of mining sensors, in particular to a carbon dioxide sensor assembly for a coal mine.
Background
The gas sensitive probe is used as an important precise component of a 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 is used for a long time to pass through the filter screen on the carbon dioxide sensor and be attached to a sensing element of the gas sensitive probe, and meanwhile, the gas sensitive probe only absorbs carbon dioxide from one direction, so that 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, wherein a plurality of vent holes are additionally formed in a protective shell of a gas-sensitive probe, carbon dioxide in a mine enters through the vent holes, the concentration detection effect of the carbon dioxide sensor is facilitated in multiple directions, a double-layer filter screen is additionally arranged on the protective shell of the gas-sensitive probe and is matched with a protective assembly, so that the gas-sensitive probe is protected, 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 purpose, the invention provides the following technical scheme: 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 support lid on the annular thread groove, the support is covered and is provided with the dustproof subassembly of the spacing installation of being convenient for, the outside of protective housing sets up the protection component who has the clearance function of blowing.
Preferably, the air vent is provided with a plurality ofly, and a plurality of air vents are the circumference around the protective housing and distribute, support the lid and be "T" type ring structure, interior external screw thread is connected between the top of supporting the lid and the annular thread groove.
Preferably, dustproof subassembly includes first filter screen and second filter screen, it is provided with the location ring channel to support to cover, the fan-shaped groove has been seted up in the outside of supporting the lid, first filter screen and second filter screen are laminated respectively in the inside and outside of protecting sheathing, first filter screen and second filter screen all cover in the air vent setting.
Preferably, the fan-shaped grooves are arranged in a plurality of numbers, the fan-shaped grooves are distributed circumferentially 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 inserted into the positioning annular groove.
Preferably, the protection component 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 the fixed seat is provided with a plurality of fixed seats and air vents which are distributed in a staggered mode.
Preferably, a moving groove is formed in the side face of the fixed seat, a guide rod is connected to the moving groove in an inserted mode, moving blocks are connected to the guide rod in an inserted mode in a sliding mode, the number of the moving blocks is two, the two moving blocks are distributed symmetrically about the center of the guide rod, and a first reset spring is connected to the guide rod in a sleeved mode and located between the moving groove and the moving blocks.
Preferably, the two sides of the fixing seat are both provided with blowing seats, the inner sides of the blowing seats are provided with sliding grooves, the outer sides of the blowing seats are provided with gas collecting holes, air ducts are arranged in the sliding grooves, and the air ducts are connected with abutting blocks in a sliding and inserting mode.
Preferably, the air duct is communicated with the air collecting hole, the abutting block is of a T-shaped structure, and a second return spring is arranged between the abutting block and the inner wall of the air duct.
Preferably, the side surfaces of the moving blocks are located in the sliding grooves and are provided with ejector blocks, the ejector blocks and the abutting blocks are correspondingly arranged, the side surfaces of the two moving blocks are hinged with connecting rods, one ends of the two connecting rods are hinged with protection plates, and the protection plates are of arc-shaped structures and are distributed in the air holes in a staggered mode.
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 multiple directions, the double-layer filter screen is additionally arranged on the protective shell of the gas-sensitive probe and the protection component is matched, so that the gas-sensitive probe is protected, the influence of impact on the sensitivity of the carbon dioxide sensor is avoided, the carbon dioxide sensor is favorably 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 limited and fixed, and form a double-layer filter screen structure, so that coal dust is prevented from passing through the filter screen on the carbon dioxide sensor and being attached to the sensing element of the gas-sensitive probe, and the filtering effect of the probe of the carbon dioxide sensor is further improved;
3. according to the invention, the protection assembly 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 airflow of the air cylinder is triggered, the airflow in the air cylinder is blown off through the air collecting holes, and then the coal dust adhered to the second filter screen at the air vent is blown off, the carbon dioxide in a mine is facilitated to enter through the plurality of air vents, and the sensitivity of the gas-sensitive probe of the carbon dioxide sensor is further improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is an exploded view of the dust cap assembly of the present invention;
FIG. 3 is a schematic view of the structure of the shield assembly of the present invention;
FIG. 4 is a schematic view of the 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 the mounting bracket of the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 6 at A according to the present invention.
In the figure: a carbon dioxide sensor main body 1; a gas sensitive probe 2; a protective shell 3; a vent hole 4; an annular thread groove 5; a support cover 6; a positioning ring groove 61; a sector groove 62; a first sieve 7; a second screen 8; a fixed seat 9; a card slot 91; a moving groove 92; a guide rod 93; moving block 94; a first return spring 95; a blowing base 96; a chute 961; a gas collection 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 guard plate 99.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present 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 casing body, the back lid, the GRG5 module, the handle, parts such as bee calling organ, carbon dioxide sensor main part 1's bottom fixed mounting has gas sensitive probe 2, protective housing 3 is installed in gas sensitive probe 2's the outside, air vent 4 has been seted up in protective housing 3's the outside, air vent 4 is provided with a plurality ofly, a plurality of air vents 4 are the circumference around protective housing 3 and distribute, a plurality of air vents 4 are favorable to 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 detected two kinds of ization carbon.
The bottom of the protective shell 3 is provided with an annular thread groove 5, a support cover 6 is fixedly arranged on the annular thread groove 5, the support cover 6 is of a T-shaped structure, the top of the support cover 6 is in internal and external thread connection with the annular thread groove 5, the support cover 6 is convenient to be fixedly connected with the protective shell 3, a dustproof assembly convenient for limiting installation is arranged on the support cover 6 and comprises a first filter screen 7 and a second filter screen 8, a positioning ring groove 61 is arranged on the support cover 6, a fan-shaped groove 62 is arranged on the outer side of the support cover 6, a plurality of fan-shaped grooves 62 are circumferentially distributed around the support cover 6, the fan-shaped grooves 62 are communicated with the positioning ring groove 61, coal dust conveniently falls into the positioning ring groove 61 and the fan-shaped grooves 62 through the second filter screen 8, the coal dust is further stored, the coal dust only needs to incline the carbon dioxide sensor main body 1 and fall onto the ground under the action of gravity, thereby facilitating the cleaning of coal dust.
The first filter screen 7 and the second filter screen 8 are respectively attached to the inner side and the outer side of the protective shell 3, the first filter screen 7 and the second filter screen 8 are both of annular structures, the first filter screen 7 and the second filter screen 8 are both covered on the vent holes 4, the first filter screen 7 is abutted between the carbon dioxide sensor main body 1 and the supporting cover 6 so as to be convenient for limiting and fixing the first filter screen 7, the bottom of the second filter screen 8 is inserted in the positioning annular groove 61 so as to be convenient for positioning the second filter screen 8, thereby facilitating the disassembly and assembly of the first filter screen 7 and the second filter screen 8, the first filter screen 7 and the second filter screen 8 form a double-layer filter screen structure, preventing coal dust from passing through the filter screen on the carbon dioxide sensor and being attached to the sensing element of the gas sensitive probe, further improving the filtering effect at the probe of the carbon dioxide sensor, thereby protecting the gas sensitive probe 2 and being beneficial to the use of the carbon dioxide sensor in the coal mining environment.
The protection assembly with the blowing cleaning function is arranged on the outer side of the protection shell 3 and comprises a plurality of fixing seats 9, the fixing seats 9 are welded on the outer side of the protection shell 3, the plurality of fixing seats 9 are distributed between the plurality of fixing seats 9 and the vent holes 4 in a staggered mode, the arrangement of the plurality of fixing seats 9 is convenient for the buffer protection effect of the subsequent protection assembly on the protection shell 3 in all directions, the protection effect of the gas sensitive probe 2 is facilitated, the bottom of the fixing seat 9 is provided with a clamping groove 91, the top of the second filter screen 8 is abutted against the clamping groove 91, the second filter screen 8 is abutted against the supporting cover 6 through the fixing seats 9, the limiting and fixing of the second filter screen 8 are facilitated, the filtering effect of the vent holes 4 is prevented from being influenced by the random movement of the second filter screen 8, the first filter screen 7 is abutted against the carbon dioxide sensor main body 1, the second filter screen 8 is abutted against the clamping groove 91, the supporting cover 6 is screwed on the annular thread groove 5, thereby realizing the spacing fixed of first filter screen 7 and second filter screen 8.
Moving slot 92 has been seted up to the side of fixing base 9, it has guide bar 93 to peg graft on the moving slot 92, it has the movable block 94 to slide to peg graft on the guide bar 93, movable block 94 is provided with two, two movable blocks 94 are about the central symmetric distribution of guide bar 93, it has first reset spring 95 to cup joint between moving slot 92 and the movable block 94 to lie in on the guide bar 93, the elastic action of first reset spring 95 plays the cushioning effect to the removal of two movable blocks 94 down, the seat 96 of blowing has all been welded to the both sides of fixing base 9, spout 961 has been seted up to the inboard of seat 96 of blowing, gas collection hole 962 has been seted up to the outside of seat 96 of blowing, the direction of gas collection hole 962 is towards air vent 4.
An air duct 963 is welded in the chute 961, the air duct 963 is of a block-shaped hollow structure, a butting block 964 is inserted on the air duct 963 in a sliding manner, the air duct 963 is communicated with the gas collecting hole 962, the butting block 964 is of a T-shaped structure, a second reset spring 965 is fixedly connected between the butting block 964 and the inner wall of the air duct 963, a top block 97 is welded in the chute 961 on the side surface of the moving block 94, the top block 97 and the butting block 964 are correspondingly arranged, connecting rods 98 are hinged on the side surfaces of the two moving blocks 94, a protection plate 99 is hinged on one end of each connecting rod 98, the protection plates 99 are of an arc-shaped structure and are distributed in a staggered manner with the vent holes 4, when the two moving blocks 94 move towards two sides of the fixed seat 9, the top block 97 presses the butting block 964 to move towards the air duct 963, the butting block 964 pushes the air flow in the air duct 963 to blow off through the gas collecting hole 962 at the moment, and further blows off coal dust adhered to the second dust filter screen 8 at the vent holes 4, the carbon dioxide in the mine can enter the mine through the plurality of vent holes 4, and the sensitivity of the gas sensitive probe 2 of the carbon dioxide sensor is further improved.
When the carbon dioxide sensor main body 1 works in practice, carbon dioxide in a mine enters the protective shell 3 of the carbon dioxide sensor from multiple directions, the gas-sensitive probe 2 detects the concentration of the carbon dioxide, a buzzer alarms to remind workers, the multiple directions are favorable for the concentration detection effect of the carbon dioxide sensor, the protective shell 3 of the gas-sensitive probe 2 is additionally provided with the first filter screen 7 and the second filter screen 8, the first filter screen 7 is abutted against the carbon dioxide sensor main body 1, the second filter screen 8 is abutted against the clamping groove 91, the first filter screen 7 and the second filter screen 8 are limited and fixed by screwing the supporting cover 6 on the annular thread groove 5, 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 screens on the carbon dioxide sensor and attaching to the sensing element of the gas-sensitive probe, and the filtering effect of the probe of the carbon dioxide sensor is further improved, thereby protecting the gas sensitive probe 2 and being beneficial to the use of the carbon dioxide sensor in the coal mining environment; when the carbon dioxide sensor is impacted in a complex mine environment, firstly the carbon dioxide sensor touches the protection plate 99, the protection plate 99 moves towards the direction close to the protective shell 3 under the action of external force, at the moment, the protection plate 99 pushes the two connecting rods 98 to expand and move, the two moving blocks 94 move towards the two sides of the fixed seat 9, the movement of the two moving blocks 94 under the action of the elastic force of the first reset spring 95 has a buffering effect, so that the protective shell 3 is buffered and protected, the arrangement of the protection plates 99 is convenient for the protective component to buffer and protect the protective shell 3 in all directions, the influence of impact force on the sensitivity of the gas-sensitive probe 2 of the carbon dioxide sensor is avoided, in the process, when the two moving blocks 94 move towards the two sides of the fixed seat 9, the top block 97 extrudes the abutting block 964 to move towards the direction in the air duct 963, and at the moment, the abutting block 964 pushes the air flow in the air duct 963 to blow away through the air collecting hole 962, and then blow off the coal dust that adheres on the second filter screen 8 of air vent 4 department, be favorable to the carbon dioxide in the mine to get into through a plurality of air vents 4, the coal dust falls to positioning ring groove 61 and fan-shaped groove 62 in through second filter screen 8, and then to the storage of coal dust, only need slope carbon dioxide sensor main part 1 coal dust fall on the ground under the action of gravity to the clearance of coal dust is convenient for, further improves the sensitivity of carbon dioxide sensor gas sensitive probe 2.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A carbon dioxide sensor assembly for a coal mine, comprising a carbon dioxide sensor body, characterized in that:
the carbon dioxide sensor is characterized in that a gas-sensitive probe is arranged at the bottom of the carbon dioxide sensor main body, a protective shell is arranged on the outer side of the gas-sensitive probe, an air vent is formed in the outer side of the protective shell, an annular threaded groove is formed in the bottom of the protective shell, a supporting cover is arranged on the annular threaded groove, a dustproof assembly convenient for limiting installation is arranged on the supporting cover, and a protection assembly with a blowing cleaning function is arranged on the outer side of the protective shell.
2. A carbon dioxide sensor assembly for a coal mine according to claim 1 wherein: the air vent is provided with a plurality ofly, and a plurality of air vents are the circumference around the protective housing and distribute, it is "T" type loop configuration to support the lid, support interior external screw thread connection between the top of lid and the annular thread groove.
3. A carbon dioxide sensor assembly for a coal mine according to claim 1 wherein: the dustproof assembly comprises a first filter screen and a second filter screen, a positioning annular groove is formed in the support cover, a fan-shaped groove is formed in the outer side of the support 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 in the vent hole.
4. A carbon dioxide sensor assembly for a coal mine according to claim 3 wherein: the carbon dioxide sensor is characterized in that the fan-shaped grooves are arranged in a plurality of numbers, the fan-shaped grooves are distributed circumferentially 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 inserted into the positioning annular groove.
5. A carbon dioxide sensor assembly for a coal mine according to claim 1 wherein: the protection component 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 the fixed seat is provided with a plurality of fixed seats and vent holes which are distributed in a staggered mode.
6. A carbon dioxide sensor assembly for a coal mine according to claim 5 wherein: the side of the fixed seat is provided with a moving groove, the moving groove is spliced with a guide rod, the guide rod is spliced with moving blocks in a sliding mode, the number of the moving blocks is two, the two moving blocks are symmetrically distributed about the center of the guide rod, and a first reset spring is sleeved between the moving groove and the moving blocks on the guide rod.
7. A carbon dioxide sensor assembly for a coal mine according to claim 5 wherein: the improved air-blowing fan is characterized in that air-blowing seats are arranged on two sides of the fixing seat, sliding grooves are formed in the inner sides of the air-blowing seats, air collecting holes are formed in the outer sides of the air-blowing seats, air cylinders are arranged in the sliding grooves, and abutting blocks are inserted on the air cylinders in a sliding mode.
8. A carbon dioxide sensor assembly for a coal mine according to claim 7 wherein: the air duct is communicated with the air collecting hole, 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.
9. A carbon dioxide sensor assembly for a coal mine according to claim 6 wherein: the side surfaces of the moving blocks are located in the sliding grooves and are provided with ejector blocks, the ejector blocks and the abutting blocks are correspondingly arranged, the side surfaces of the two moving blocks are hinged with connecting rods, one ends of the two connecting rods are hinged with protection plates, and the protection plates are of arc-shaped structures and are distributed in a staggered mode with the air vents.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210176586.1A CN114518435B (en) | 2022-02-25 | 2022-02-25 | Carbon dioxide sensor assembly for coal mine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210176586.1A CN114518435B (en) | 2022-02-25 | 2022-02-25 | Carbon dioxide sensor assembly for coal mine |
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| CN114518435A true CN114518435A (en) | 2022-05-20 |
| CN114518435B CN114518435B (en) | 2023-07-14 |
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