CN117451945B - High circulation structure of gas sensor - Google Patents
High circulation structure of gas sensor Download PDFInfo
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- CN117451945B CN117451945B CN202311432144.XA CN202311432144A CN117451945B CN 117451945 B CN117451945 B CN 117451945B CN 202311432144 A CN202311432144 A CN 202311432144A CN 117451945 B CN117451945 B CN 117451945B
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- gear
- wind scooper
- sliding sleeve
- fixedly connected
- guide rail
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- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 238000007790 scraping Methods 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 19
- 239000000523 sample Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 8
- 241000883990 Flabellum Species 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 11
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 54
- 239000001301 oxygen Substances 0.000 description 11
- 229910052760 oxygen Inorganic materials 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 238000010030 laminating Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- 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
- G01N33/0011—Sample conditioning
- G01N33/0021—Sample conditioning involving the use of a carrier gas for transport to the sensor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Food Science & Technology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
The application relates to a high-flow structure of a gas sensor, belonging to the technical field of sensors; the structure comprises: the sensor comprises a sensor shell, wherein a sliding sleeve is fixedly arranged on the outer wall of the sensor shell, a wind scooper is fixedly arranged at the bottom of the sensor shell, uniformly distributed flow guide holes are formed in the surface of the wind scooper, the inside of the wind scooper is rotationally connected with a net frame, and a gear ring is fixedly arranged on the inner wall of the net frame; the bottom of the sensor shell is fixedly connected with a fixed shaft, the top of the fan blade is fixedly connected with a gear sleeve, an output gear is respectively connected with a gear ring and a transmission gear in a meshed manner, the transmission gear is connected with the gear sleeve in a meshed manner, a sliding sleeve is connected in a sliding manner in the sliding groove, and a pawl in the sliding sleeve extends to the outer side of the sliding sleeve and is clamped with a ratchet; according to the application, the uniformly distributed diversion holes are arranged on the surface of the air guide cover, so that the air around the air guide cover enters in any direction, the net frame is arranged to realize air filtration, and the soft brush and the scraping plate are arranged to clean dust, and meanwhile, the ventilation in the air guide cover is realized, and the high ventilation quantity of the air in the air guide cover is improved.
Description
Technical Field
The invention relates to a high-flow structure of a gas sensor, belonging to the technical field of sensors.
Background
A gas sensor is a transducer that converts a certain gas volume fraction into a corresponding electrical signal. Japanese patent application laid-open No. 2015-200643 discloses a gas sensor including: a laminate having a plurality of oxygen ion-conductive solid electrolyte layers laminated thereon; a reference electrode formed inside the laminate, to which a reference gas is introduced from a reference gas introduction space; a measurement electrode disposed in a measured gas flow section in the laminate; measured gas side electrode: the gas-side electrode to be measured is disposed in a portion of the laminate exposed to the gas to be measured. The gas sensor detects the concentration of a specific gas in a gas to be measured based on an electromotive force generated between a reference electrode and a measurement electrode. However, when oxygen around the measured gas side electrode is sucked around the reference electrode, the detection accuracy of the specific gas is lowered regardless of whether the amount of oxygen sucked is too large or too small, and countermeasures for maintaining the detection accuracy at a high level have not been fully studied.
In view of the above, the invention patent application number 201810268623.5 discloses a gas sensor comprising: laminate: the laminate has a plurality of oxygen ion conductive solid electrolyte layers stacked, and is provided with a measured gas flow section for introducing and flowing a measured gas therein; measuring electrode: the measuring electrode is arranged on the inner peripheral surface of the measured gas circulation part; measured gas side electrode: the measured gas side electrode is arranged at a portion of the laminate exposed to the measured gas; reference electrode: the reference electrode is arranged in the laminate; porous reference gas introduction layer: a reference gas introduction layer for introducing a reference gas serving as a detection reference for a specific gas concentration of the gas to be measured and flowing the reference gas to the reference electrode; and a detection unit: the detection means detects a specific gas concentration of the gas to be measured based on an electromotive force generated between the reference electrode and the measurement electrode; reference gas adjustment unit: the reference gas adjustment means causes an oxygen inhalation current to flow between the reference electrode and the measurement target gas side electrode, and inhales oxygen from the periphery of the measurement target gas side electrode to the periphery of the reference electrode; when the average value of the oxygen inhalation current is defined as P and the limit current value of the reference gas introduction layer when oxygen is inhaled from the periphery of the reference electrode to the periphery of the measured gas side electrode is defined as Q, the ratio Q/P is 0.8-10; the reference gas adjustment pump unit circulates a control current and sucks oxygen around the reference electrode, so that it is possible to compensate for a decrease in the oxygen concentration around the reference electrode, and further, it is possible to maintain the oxygen concentration around the reference electrode at an appropriate value, so that it is possible to maintain the accuracy of detecting the NOx gas concentration at a high level.
However, the gas flow rate also affects the measurement accuracy. The sensor can not ensure high flow rate of gas, so that the detection precision is further improved and is restricted, the high flow rate can be accompanied by more air impurities, the gas can be accumulated at the position of the probe after being used for a long time, and the detection precision is also affected.
Disclosure of Invention
The invention aims at the problems, and designs a high-circulation structure of a gas sensor, which not only can ensure high circulation of gas during detection, but also can solve the problem that air impurities influence detection precision.
The purpose of the invention is realized in the following way:
A gas sensor high flow-through structure comprising:
The sensor comprises a sensor shell, wherein a sliding sleeve is fixedly arranged on the outer wall of the sensor shell, a pawl is rotationally connected inside the sliding sleeve, and the pawl is connected with the inside of the sliding sleeve through a spring which is distributed in an inclined mode;
The wind scooper is fixedly arranged at the bottom of the sensor shell, uniformly distributed flow guide holes are formed in the surface of the wind scooper, a tilted edge is formed on the wind scooper on one side of the flow guide holes, the inside of the wind scooper is rotationally connected with the net frame, and a gear ring is fixedly arranged on the inner wall of the net frame; the sensor is characterized in that the bottom of the sensor shell is fixedly connected with a fixed shaft, the surface of the fixed shaft is fixedly connected with a bearing, the bearing is rotationally connected with the inside of the fan blade, the top of the fan blade is fixedly connected with a gear sleeve, an output gear is arranged in the gear ring, the output gear is respectively connected with the gear ring and a transmission gear in a meshed manner, and the transmission gear is connected with the gear sleeve in a meshed manner;
the guide rail, the spout has been seted up to the inside guide rail that is located the spout inside wall is equipped with the ratchet, the inside sliding connection of spout has the sliding sleeve, just the inside pawl of sliding sleeve extends to the sliding sleeve outside and with the ratchet joint.
In this technical scheme, sensor housing lateral wall fixed mounting has display screen and control button respectively, the sensor housing is equipped with the sliding sleeve that corresponds in guide rail one side, the sliding sleeve cross-section is U-shaped structure, the sliding sleeve both ends all are equipped with the flange that is located the guide rail inside, the inside pawl that is equipped with a plurality of evenly distributed of sliding sleeve, every the pawl all inclines to distribute to the sliding sleeve inside.
In this technical scheme, the guide rail middle part is equipped with the spout of T shape structure, the inside ratchet that is equipped with evenly distributed of spout, the inside sliding sleeve of guide rail and ratchet surface sliding connection, the equal fixedly connected with installation piece in guide rail both ends, the inside grafting that runs through of installation piece has the bolt that is used for the guide rail is fixed.
In this technical scheme, the wind scooper is spherical structure, the wind scooper surface is equipped with a plurality of crescent water conservancy diversion hole, wind scooper inner wall fixedly connected with arc structure's soft hair brush, the soft hair brush sets up for the slope structure between wind scooper and the screen frame, the slope direction and the water conservancy diversion hole air inlet direction parallel distribution of soft hair brush, the soft hair brush is connected with the screen frame surface laminating, soft hair brush bottom corresponds to be provided with and installs the scraper blade of wind scooper inner wall, the scraper blade is connected with screen frame bottom surface laminating, just wind scooper bottom outer wall still fixedly connected with and the connecting pipe that the scraper blade corresponds the distribution.
In this technical scheme, connecting pipe tip and movable tube screw thread cup joint, movable tube rotates with fixed tube surface to be connected, fixed tube and collection box top fixed connection, fixed tube and connecting pipe diameter are the same and laminating each other, just the collection box corresponds to set up in guide rail one side.
In this technical scheme, screen frame surface fixed mounting has a plurality of evenly distributed's filter screen, the filter screen surface is connected with the laminating of soft brush, the filter screen corresponds to be set up in the scraper blade top, just the scraper blade corresponds to be set up in connecting pipe one side, the hollow sphere structure of round hole has been seted up for both sides to the screen frame, the equal fixedly connected with sealing strip in screen frame both ends surface, the sealing strip is annular structure and is connected with the laminating of wind scooper inner wall, circular structure's gas outlet has been seted up to the wind scooper bottom, the gas outlet be evagination form set up in the wind scooper below.
In this technical scheme, wind scooper bottom inner wall and a plurality of evenly distributed's fixed block fixed connection, every fixed block top all is connected with stopper fixed connection, fixed block top surface is connected with the laminating of net frame edge, the ring channel that distributes corresponding with the stopper has been seted up to net frame bottom.
In this technical scheme, sensor housing bottom fixed mounting has the micro motor that is located the wind scooper inside, micro motor output and pivot fixed connection, pivot bottom and one of them fixed block rotate to be connected, just pivot both ends are all with output gear fixed connection.
In this technical scheme, the net frame both ends just are located the round hole inboard and all are equipped with two ring gears, two the ring gear is the ring structure, every the inside all with output gear meshing of ring gear is connected, output gear diameter is less than the drive gear diameter, the drive gear diameter is greater than gear sleeve diameter, just drive gear rotates with sensor housing bottom and is connected.
In this technical scheme, fixed axle bottom rigid coupling has the test probe that is used for gaseous detection, test probe is located the wind scooper middle part, flabellum and gear cover all cup joint with fixed axle surface activity, just the flabellum corresponds the setting in drive gear below.
On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the invention.
The invention has the beneficial effects that: the sensor probe is characterized in that the air guide cover is arranged at the bottom of the sensor shell, air entering at the sensor probe is achieved, evenly distributed air guide holes are formed in the surface of the air guide cover, air entering around the air guide cover is achieved in any direction, the net frame is arranged inside the air guide cover, air filtering is achieved, the soft brush and the scraping plate are arranged between the air guide cover and the net frame, the soft brush is used for cleaning dust on the surface of the net frame, the dust cleaned by rotation of the net frame is collected, a connecting pipe is arranged on one side of the scraping plate, collected dust is intensively treated, dust is prevented from accumulating at the detection probe, air circulation in the air guide cover is achieved by rotation of the net frame, vortex is formed in the air guide cover by air, air is discharged from the lower portion of the air guide cover, and air circulation speed in the air guide cover is improved.
Drawings
Fig. 1 is a schematic perspective view of a high-flow structure of a gas sensor according to the present invention.
Fig. 2 is a schematic diagram of the internal front view structure of the wind scooper.
FIG. 3 is a schematic diagram of the external side view of the high flow structure of the gas sensor of the present invention.
FIG. 4 is a schematic top view of the gas sensor of the present invention.
Fig. 5 is a schematic view of a partial enlarged structure at a in fig. 2.
Fig. 6 is a schematic top view of the wind scooper.
Fig. 7 is a schematic top view of the structure of the screen frame.
Fig. 8 is a schematic perspective view of a fixed shaft.
Fig. 9 is a schematic view of a partial perspective structure of the sliding sleeve.
Fig. 10 is a schematic view of a partial perspective structure at a guide rail.
Fig. 11 is a schematic perspective view of the collecting box.
In the figure: 101. sensor housing, 102, sliding sleeve, 103, pawl, 104, spring, 105, display screen, 106, control button, 201, wind scooper, 202, flow guiding hole, 203, edge lifting, 204, fixed block, 205, stopper, 206, screen frame, 207, sealing strip, 208, filter screen, 209, fixed shaft, 210, detection probe, 211, bearing, 212, fan blade, 213, gear sleeve, 214, drive gear, 215, micro motor, 216, spindle, 217, output gear, 218, gear ring, 219, scraper blade, 220, connecting tube, 221, movable tube, 222, fixed tube, 223, collection box, 224, brush, 225, air outlet, 301, guide rail, 302, chute, 303, ratchet, 304, mounting block, 305, bolt.
Detailed Description
The following will make further details of the present invention by means of the accompanying drawings.
The high-flow structure of the gas sensor in this embodiment, as shown in fig. 1 to 11, includes:
the sensor comprises a sensor shell 101, wherein a sliding sleeve 102 is fixedly arranged on the outer wall of the sensor shell 101, a pawl 103 is rotatably connected inside the sliding sleeve 102, and the pawl 103 is connected with the inside of the sliding sleeve 102 through a spring 104 which is distributed in an inclined mode;
The wind scooper 201 is fixedly installed at the bottom of the sensor housing 101, uniformly distributed wind scooper 202 are formed on the surface of the wind scooper 201, a tilted edge 203 is formed on the wind scooper 201 on one side of the wind scooper 202, the inside of the wind scooper 201 is rotationally connected with the net frame 206, and a gear ring 218 is fixedly installed on the inner wall of the net frame 206; the bottom of the sensor housing 101 is also fixedly connected with a fixed shaft 209, the surface of the fixed shaft 209 is fixedly connected with a bearing 211, the bearing 211 is rotationally connected with the inside of the fan blade 212, the top of the fan blade 212 is fixedly connected with a gear sleeve 213, an output gear 217 is arranged in the gear ring 218, the output gear 217 is respectively meshed and connected with the gear ring 218 and a transmission gear 214, and the transmission gear 214 is meshed and connected with the gear sleeve 213;
The guide rail 301, the inside spout 302 that has seted up of guide rail 301 is located the guide rail 301 of spout 302 inside wall is equipped with ratchet 303, the inside sliding connection of spout 302 has sliding sleeve 102, just the inside pawl 103 of sliding sleeve 102 extends to the sliding sleeve 102 outside and with ratchet 303 joint.
In this technical scheme, sensor housing 101 lateral wall fixed mounting has display screen 105 and control button 106 respectively, sensor housing 101 is equipped with the sliding sleeve 102 that corresponds in guide rail 301 one side, the sliding sleeve 102 cross-section is U-shaped structure, sliding sleeve 102 both ends all are equipped with the flange that is located guide rail 301 inside, sliding sleeve 102 inside is equipped with a plurality of evenly distributed's pawl 103, every pawl 103 all slope distributes to sliding sleeve 102 inside, and sliding sleeve 102 is used for driving sensor housing 101 and removes in guide rail 301 inside, and sliding sleeve 102 both ends set up the flange and can make it spacing and realize vertical removal in guide rail 301 inside to can carry out the joint spacing with the ratchet 303 of guide rail 301 inside through setting up a plurality of pawls 103, from top to bottom with sliding sleeve 102 move to guide rail 301 inside during the installation, realize the quick location after the removal through the cooperation of ratchet 303 and pawl 103.
By adopting such scheme, the middle part of guide rail 301 is equipped with the spout 302 of T shape structure, the inside ratchet 303 that is equipped with of spout 302, the inside sliding sleeve 102 of guide rail 301 and ratchet 303 surface sliding connection, the equal fixedly connected with installation piece 304 in guide rail 301 both ends, the inside grafting of running through of installation piece 304 has the bolt 305 that is used for guide rail 301 is fixed, and guide rail 301 is installed fixedly through the bolt 305 on the installation piece 304, makes guide rail 301 can realize the removal of sliding sleeve 102, and then carries out high adjustment to sensor housing 101, and the auto-lock of pawl 103 and ratchet 303 realizes high fast adjustment.
In the technical proposal, the wind scooper 201 is of a spherical structure, a plurality of crescent-shaped diversion holes 202 are arranged on the surface of the wind scooper 201, a soft brush 224 of an arc structure is fixedly connected with the inner wall of the wind scooper 201, the soft brush 224 is arranged between the wind scooper 201 and the screen frame 206 in an inclined structure, the inclined direction of the soft brush 224 and the air inlet direction of the diversion holes 202 are parallel, the soft brush 224 is in fit connection with the surface of the screen frame 206, a scraper 219 arranged on the inner wall of the wind scooper 201 is correspondingly arranged at the bottom of the soft brush 224, the scraper 219 is in fit connection with the outer surface of the bottom of the screen frame 206, a connecting pipe 220 which is correspondingly distributed with the scraper 219 is also fixedly connected with the outer wall of the bottom of the wind scooper 201, when the external air flow passes through the air guide cover 201, the air flow in any direction can enter from the air guide hole 202 with a crescent structure, the air flow contacts the detection probe 210 to detect the air after passing through the filter screen 208 on the surface of the screen frame 206, and the inclined distribution of the soft brush 224 is arranged, so that the soft brush 224 can sweep dust on the surface of the filter screen 208, and the air inlet direction of the soft brush 224 is parallel to the air guide hole 202, so that the soft brush 224 can not influence the normal circulation of the air flow, and when the dust swept by the soft brush 224 falls to the bottom of the screen frame 206, the relative rotation of the screen frame 206 and the air guide cover 201 enables the scraper 219 to collect the dust to one side, and the collected dust just falls from the connecting pipe 220 to collect.
By adopting such a scheme, the end of the connecting pipe 220 is in threaded connection with the movable pipe 221, the movable pipe 221 is rotationally connected with the surface of the fixed pipe 222, the fixed pipe 222 is fixedly connected with the top of the collecting box 223, the diameters of the fixed pipe 222 and the connecting pipe 220 are the same and are mutually attached, the collecting box 223 is correspondingly arranged on one side of the guide rail 301, the collecting box 223 is arranged between the wind scooper 201 and the guide rail 301, the movable pipe 221 is in threaded connection with the surface of the connecting pipe 220, the connecting pipe 220 and the fixed pipe 222 are mutually spliced, dust falling from the connecting pipe 220 enters the collecting box 223 from the fixed pipe 222 for collecting, and periodic cleaning of dust in the collecting box 223 can be realized only by unscrewing the movable pipe 221.
In this technical scheme, screen frame 206 surface mounting has a plurality of evenly distributed's filter screen 208, filter screen 208 surface and soft brush 224 laminating are connected, filter screen 208 corresponds the setting in scraper blade 219 top, just scraper blade 219 corresponds and sets up in connecting pipe 220 one side, screen frame 206 is the hollow sphere structure that the round hole was seted up to both sides, the equal fixedly connected with sealing strip 207 in screen frame 206 both ends surface, sealing strip 207 is circular structure and is connected with the laminating of wind scooper 201 inner wall, circular structure's gas outlet 225 has been seted up to wind scooper 201 bottom, gas outlet 225 be the evagination form set up in wind scooper 201 below, screen frame 206 can rotate in wind scooper 201 inside to set up sealing strip 207 realize closely laminating with wind scooper 201 inner wall, set up the air current that gets into wind scooper 201 through guiding hole 202 department and the gas outlet 225 discharge from wind scooper 201 below, when the air current that is located wind scooper 201 flows, make wind scooper 201 inside form negative pressure, and then improve wind scooper 201 inner air current flow efficiency.
By adopting such a scheme, the inner wall of the bottom of the wind scooper 201 is fixedly connected with a plurality of uniformly distributed fixed blocks 204, each fixed block 204 is fixedly connected with a limiting block 205, the top surface of each fixed block 204 is connected with the edge of a net frame 206 in a fitting way, an annular groove which is correspondingly distributed with the limiting block 205 is formed in the bottom of the net frame 206, the net frame 206 is supported by arranging the fixed blocks 204, the limiting blocks 205 are arranged to limit the net frame 206, the net frame 206 horizontally rotates in the wind scooper 201, vertical rotation cannot occur, and the net frame 206 can stably rotate in the wind scooper 201 through the cooperation of the limiting blocks 205 and the annular groove.
In this technical solution, the bottom of the sensor housing 101 is fixedly provided with the micro motor 215 located inside the wind scooper 201, the output end of the micro motor 215 is fixedly connected with the rotating shaft 216, the bottom of the rotating shaft 216 is rotationally connected with one of the fixed blocks 204, and both ends of the rotating shaft 216 are fixedly connected with the output gear 217, when the micro motor 215 is used for driving the rotating shaft 216 to rotate on the fixed block 204 and the output gear 217 on the rotating shaft 216 is driven to rotate, the output gear 217 drives the gear ring 218 to drive the screen frame 206 to rotate so as to enable the filter screen 208 to contact with the soft brush 224, and meanwhile, the output gear 217 drives the gear sleeve 213 to rotate through the transmission gear 214, so that the gear sleeve 213 drives the fan blades 212 below the gear sleeve to rotate on the fixed shaft 209, thereby improving airflow circulation efficiency.
In this technical scheme, two ends of the mesh frame 206 and located inside the circular hole are respectively provided with two ring gears 218, two ring gears 218 are respectively in a circular ring structure, each ring gear 218 is connected with an output gear 217 in a meshed manner, the diameter of the output gear 217 is smaller than that of the transmission gear 214, the diameter of the transmission gear 214 is larger than that of the gear sleeve 213, the transmission gear 214 is rotationally connected with the bottom of the sensor housing 101, the transmission of the output gear 217 and the transmission gear 214 drives the gear sleeve 213 to rotate, the gear sleeve 213 and the output gear 217 keep similar rotation speeds to rotate, and the large rotation speed ratio of the ring gears 218 and the output gear 217 enables the ring gears 218 to slowly rotate.
In this technical scheme, the bottom of the fixed shaft 209 is fixedly connected with a detection probe 210 for detecting gas, the detection probe 210 is located in the middle of the wind scooper 201, the fan blades 212 and the gear sleeve 213 are movably sleeved on the surface of the fixed shaft 209, the fan blades 212 are correspondingly arranged below the transmission gear 214, and when the fan blades 212 rotate, the air flow flows from top to bottom, so that the air flow is fully contacted with the detection probe 210.
The present invention is not limited to the above-described embodiments, and any changes in shape or structure thereof are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims, and those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and spirit of the present invention, but these changes and modifications fall within the scope of the present invention.
Claims (1)
1. A high flow-through structure for a gas sensor, comprising:
the sensor comprises a sensor shell (101), wherein a sliding sleeve (102) is fixedly arranged on the outer wall of the sensor shell (101), a pawl (103) is rotatably connected inside the sliding sleeve (102), and the pawl (103) is connected with the inside of the sliding sleeve (102) through a spring (104) which is distributed in an inclined mode;
The wind scooper (201), the wind scooper (201) is fixedly mounted to the bottom of the sensor shell (101), uniformly distributed diversion holes (202) are formed in the surface of the wind scooper (201), a tilted edge (203) is formed on the wind scooper (201) on one side of the diversion holes (202), the inside of the wind scooper (201) is rotationally connected with the net frame (206), and a gear ring (218) is fixedly mounted on the inner wall of the net frame (206); the sensor is characterized in that a fixed shaft (209) is fixedly connected to the bottom of the sensor shell (101), a bearing (211) is fixedly connected to the surface of the fixed shaft (209), the bearing (211) is rotationally connected with the inside of a fan blade (212), the top of the fan blade (212) is fixedly connected with a gear sleeve (213), an output gear (217) is arranged in a gear ring (218), the output gear (217) is respectively connected with the gear ring (218) and a transmission gear (214) in a meshed manner, and the transmission gear (214) is connected with the gear sleeve (213) in a meshed manner;
The guide rail (301), the inside of the guide rail (301) is provided with a chute (302), the guide rail (301) positioned on the inner side wall of the chute (302) is provided with a ratchet (303), the inside of the chute (302) is connected with a sliding sleeve (102) in a sliding way, and a pawl (103) in the sliding sleeve (102) extends to the outside of the sliding sleeve (102) and is clamped with the ratchet (303);
The sensor comprises a sensor shell (101), wherein a display screen (105) and a control button (106) are respectively and fixedly arranged on the side wall of the sensor shell (101), a sliding sleeve (102) corresponding to one side of a guide rail (301) is arranged on the sensor shell (101), the cross section of the sliding sleeve (102) is of a U-shaped structure, flanges positioned in the guide rail (301) are arranged at two ends of the sliding sleeve (102), a plurality of evenly distributed pawls (103) are arranged in the sliding sleeve (102), and each pawl (103) is obliquely distributed in the sliding sleeve (102);
The novel sliding guide is characterized in that a sliding groove (302) with a T-shaped structure is arranged in the middle of the guide rail (301), ratchets (303) which are uniformly distributed are arranged in the sliding groove (302), a sliding sleeve (102) in the guide rail (301) is connected with the surfaces of the ratchets (303) in a sliding mode, mounting blocks (304) are fixedly connected to two ends of the guide rail (301), and bolts (305) used for fixing the guide rail (301) are inserted in the mounting blocks (304) in a penetrating mode;
The wind scooper (201) is of a spherical structure, a plurality of crescent diversion holes (202) are formed in the surface of the wind scooper (201), a soft brush (224) of an arc structure is fixedly connected to the inner wall of the wind scooper (201), the soft brush (224) is arranged between the wind scooper (201) and the net frame (206) in an inclined structure, the inclined direction of the soft brush (224) and the air inlet direction of the diversion holes (202) are distributed in parallel, the soft brush (224) is in fit connection with the surface of the net frame (206), a scraping plate (219) mounted on the inner wall of the wind scooper (201) is correspondingly arranged at the bottom of the soft brush (224), the scraping plate (219) is in fit connection with the outer surface of the bottom of the net frame (206), and connecting pipes (220) which are distributed correspondingly to the scraping plate (219) are fixedly connected to the outer wall of the bottom of the wind scooper (201).
The end part of the connecting pipe (220) is in threaded sleeve joint with the movable pipe (221), the movable pipe (221) is in rotary connection with the surface of the fixed pipe (222), the fixed pipe (222) is fixedly connected with the top of the collecting box (223), the diameters of the fixed pipe (222) and the connecting pipe (220) are the same and are mutually attached, and the collecting box (223) is correspondingly arranged on one side of the guide rail (301);
The novel air conditioner is characterized in that a plurality of evenly distributed filter screens (208) are fixedly arranged on the surface of the screen frame (206), the surfaces of the filter screens (208) are connected with the soft brushes (224) in a fitting mode, the filter screens (208) are correspondingly arranged above the scraping plates (219), the scraping plates (219) are correspondingly arranged on one side of the connecting pipe (220), the screen frame (206) is of a hollow sphere structure with round holes formed in two sides, sealing strips (207) are fixedly connected to the surfaces of two ends of the screen frame (206), the sealing strips (207) are of a circular ring structure and are connected with the inner wall of the air guide cover (201) in a fitting mode, air outlets (225) of a circular structure are formed in the bottom of the air guide cover (201), and the air outlets (225) are arranged below the air guide cover (201) in an outer protruding mode;
The inner wall of the bottom of the wind scooper (201) is fixedly connected with a plurality of uniformly distributed fixed blocks (204), the top of each fixed block (204) is fixedly connected with a limiting block (205), the top surface of each fixed block (204) is in fit connection with the edge of a screen frame (206), and annular grooves which are distributed corresponding to the limiting blocks (205) are formed in the bottom of the screen frame (206);
The sensor comprises a sensor shell (101), wherein a micro motor (215) positioned in a wind scooper (201) is fixedly arranged at the bottom of the sensor shell, the output end of the micro motor (215) is fixedly connected with a rotating shaft (216), the bottom of the rotating shaft (216) is rotationally connected with one of the fixed blocks (204), and both ends of the rotating shaft (216) are fixedly connected with an output gear (217);
two ends of the net frame (206) and positioned at the inner sides of the round holes are respectively provided with two gear rings (218), the two gear rings (218) are of circular ring structures, the inside of each gear ring (218) is in meshed connection with an output gear (217), the diameter of each output gear (217) is smaller than that of a transmission gear (214), the diameter of each transmission gear (214) is larger than that of a gear sleeve (213), and the transmission gears (214) are in rotary connection with the bottom of the sensor shell (101);
The utility model discloses a gas detection's detection probe (210) is fixed on fixed axle (209) bottom rigid coupling, detection probe (210) are located wind scooper (201) middle part, flabellum (212) and gear sleeve (213) all cup joint with fixed axle (209) surface activity, just flabellum (212) correspond to be set up in drive gear (214) below.
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