CN113702597A - Indoor air quality detector and detection method thereof - Google Patents
Indoor air quality detector and detection method thereof Download PDFInfo
- Publication number
- CN113702597A CN113702597A CN202111111910.3A CN202111111910A CN113702597A CN 113702597 A CN113702597 A CN 113702597A CN 202111111910 A CN202111111910 A CN 202111111910A CN 113702597 A CN113702597 A CN 113702597A
- Authority
- CN
- China
- Prior art keywords
- detection
- detector
- air
- frame
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 168
- 239000002245 particle Substances 0.000 claims abstract description 50
- 239000000523 sample Substances 0.000 claims description 51
- 230000005540 biological transmission Effects 0.000 claims description 36
- 238000007789 sealing Methods 0.000 claims description 30
- 238000001914 filtration Methods 0.000 claims description 22
- 238000005516 engineering process Methods 0.000 claims description 17
- 238000000149 argon plasma sintering Methods 0.000 claims description 15
- 238000009423 ventilation Methods 0.000 claims description 15
- 240000004282 Grewia occidentalis Species 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 6
- 239000010419 fine particle Substances 0.000 claims description 6
- 241001075561 Fioria Species 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims description 2
- 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
- 238000007599 discharging Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 239000013618 particulate matter Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000011540 sensing material Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
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
-
- 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
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
- G01N33/0032—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array using two or more different physical functioning modes
-
- 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 relates to the field of air quality detection, in particular to an indoor air quality detector and a detection method thereof, wherein the indoor air quality detector comprises a detector main shell, a detector side panel, an air suction pump, an air inlet cylinder, a display screen and the like; the detector main casing right side fixed mounting has the detector side board, and detector main casing left side is provided with the aspirator pump, fixedly connected with air inlet cylinder on the aspirator pump, and detector main casing rear side top fixed mounting has the display screen. Through the arranged light detection receiver, the light detection receiver receives particles in the air, the particles are irradiated and then reflected to form flash light, and the light detection receiver measures the content of the particles through the frequency and duration of the scattered light, so that the air quality index is obtained.
Description
Technical Field
The invention relates to the field of air quality detection, in particular to an indoor air quality detector and a detection method thereof.
Background
With the development of economy and the improvement of the taste of life, more and more people begin to pay attention to health and environmental protection. After a new house is finished, except for basic measures such as ventilation and placement of plants except formaldehyde, carbon bags and the like, an air quality detector is generally adopted to comprehensively detect the air quality condition, the air quality detector is an instrument capable of detecting formaldehyde, PM2.5 and temperature and humidity in the air in real time, and the concentration of gas and inhalable particles can be accurately monitored through an internal air detection sensor, and the air quality index can be calculated.
The existing gas detector is a composite product generally, when equipment breaks down, all gas units can not be detected, and the gas detector must be returned to the factory for maintenance, so a user can select to use various portable gas detectors, mainly because the portable gas detector is convenient to use, the use frequency is not high, if maintenance and return maintenance occur, the use is not influenced, but the single-machine power consumption is large, the charging and discharging time of a battery used by a common portable instrument can be more frequent, the resistance is greatly influenced by the temperature, the inherent temperature coefficient enables the gas detector not to work in a wide temperature range, the detection error can be large due to the moisture contained in a humidity sensing material, and the detection result is influenced.
Disclosure of Invention
The invention aims to provide an indoor air quality detector and a detection method thereof, which can detect the indoor air quality, filter and separate particles in the air, detect the content of larger particles in the air, reduce errors caused by moisture contained in a humidity sensing material and facilitate the cleaning of the particles, so as to solve the problems that all gas units cannot be detected when equipment fails in the composite product provided in the background art, and a portable instrument has large detection errors caused by the moisture contained in the humidity sensing material.
The technical implementation scheme of the invention is as follows: an indoor air quality detector and a detection method thereof, which comprises a detector main shell and also comprises:
the detector side panel is fixedly arranged on the right side of the detector main shell;
the air suction pump is arranged on the left side of the main shell of the detector and used for sucking indoor air into the equipment for detection;
the air inlet cylinder is fixedly connected to the air suction pump and used for conveying air;
the display screen is fixedly arranged above the rear side of the main shell of the detector and used for displaying detection data;
the detector comprises a fixed ventilation disc, a fixed ventilation disc is arranged below a side panel of the detector and used for exhausting air in a main shell of the detector, and a four-corner sealing disc is rotationally connected to the fixed ventilation disc and used for blocking the fixed ventilation disc;
the top supporting plate is fixedly arranged above the inside of the main shell of the detector, and a storage battery is fixedly arranged in the top supporting plate and used for supplying power to equipment;
the light scattering detection technology assembly is positioned in the detector main shell and is used for detecting the content of particulate matters in the air;
the light scattering detection technology component is provided with a frictional static detection technology component which is used for detecting particles in the air;
the particle filtering component is connected to the detector main shell in a sliding mode and used for filtering and separating fine particles.
In a preferred embodiment of the present invention, the light scattering detection technology component includes a light cover, a light tube, a detection frame, a first lens, a second lens, a sealing plate and a light detection receiver, the light cover is fixedly installed on the front side in the main housing of the detector, the light tube is installed in the light cover, the detection frame is fixedly installed on the left side in the main housing of the detector, the first lens is installed on the front side of the detection frame, the second lens is installed on the rear side of the detection frame, the sealing plate is fixedly installed on the rear side of the detection frame, and the light detection receiver is positioned in the sealing plate.
In a preferred embodiment of the present invention, the tribo-electrostatic detection assembly comprises a detection probe, a vibration transmission rod, a probe vibration rod, a transmission line, a fixed slot plate and a return spring, wherein the detection probe is fixedly connected to the lower part of the detection frame in a uniformly arranged manner, the vibration transmission rod is slidably connected to the left side of the front side of the detection frame, the probe vibration rod is welded to the bottom end of the vibration transmission rod, the probe vibration rod is in contact with the detection probe, the transmission line is commonly connected to the detection probe, the top end of the transmission line is connected to the display screen, the transmission line passes through the main casing of the detector, the fixed slot plate is fixedly connected to the left side of the inside of the main casing of the detector, the fixed slot plate is slidably connected to the vibration transmission rod, the fixed slot plate is in contact with the suction pump, and the return spring is connected between the vibration transmission rod and the fixed slot plate.
In a preferred embodiment of the invention, the particle filtering assembly comprises a collecting frame, a fixed connecting frame, a top filtering frame and an electrostatic adsorption net, wherein the collecting frame is connected below a main shell of the detector in a sliding manner, the collecting frame is in contact with the detection frame body, the fixed connecting frame is connected above the main shell of the detector in a sliding manner, the fixed connecting frame is fixedly connected with the top surface of the collecting frame, the top filtering frame is fixedly arranged on the fixed connecting frame, the top filtering frame is in contact with the detection frame body, the top filtering frame is in contact with a top supporting plate, and the top filtering frame is provided with the three electrostatic adsorption nets.
In a preferred embodiment of the present invention, after the electrostatic absorption net is powered on, the charged body has the property of attracting light objects, so that the particles in the air are attracted and attached to the electrostatic absorption net, and the air and the particles in the air are filtered and separated.
In a preferred embodiment of the invention, the invention further comprises a capacitive humidity detection assembly, the capacitive humidity detection assembly is arranged on the side panel of the detector, the capacitive humidity detection assembly comprises an air outlet frame, a small motor, a power shaft, a power gear, a fan blade, a lifting rack, an extrusion spring, a sliding dial plate, a compression spring, a connecting rod and a capacitive humidity detector, the air outlet frame is fixedly arranged on the left side of the side panel of the detector, the small motor is fixedly arranged on the right side of the air outlet frame, the power shaft is fixedly connected with the output shaft of the small motor, the power shaft is rotatably connected with the air outlet frame, the power gear is fixedly connected with the power shaft, the fan blade is fixedly connected with the middle part of the power shaft, the lifting rack is connected to the side panel of the detector in a sliding manner, the lifting rack is meshed with the power gear, the extrusion spring is connected between the lifting rack and the side panel of the detector, the sliding dial plate is slidably connected to the lifting rack, two compression springs are connected between the sliding shifting plate and the lifting rack, a connecting rod is fixedly connected to the lifting rack, a capacitive humidity detector is welded at the left end of the connecting rod, and the capacitive humidity detector is located in the detection frame.
In a preferred embodiment of the present invention, the detecting device further comprises a triggering assembly, the triggering assembly is disposed above the lifting rack, the triggering assembly comprises a fixed triggering rod and a rotating gear, the fixed triggering rod is fixedly connected above the lifting rack, the fixed triggering rod is slidably connected with the side panel of the detecting device, and the rotating gear is fixedly connected to the four-corner sealing plate.
In a preferred embodiment of the invention, the air intake device further comprises a light shielding disc, and the light shielding disc is arranged at the top in the air intake cylinder.
In a preferred embodiment of the present invention, the light shielding plate is in a spiral arc shape, and the light shielding plate is used for shielding external light so that the detecting frame simulates a darkroom environment to detect harmful substances in air, and the light shielding plate can shield the external light and ensure that indoor air can be sucked into the air inlet cylinder.
In a preferred embodiment of the present invention, a method for detecting an indoor air quality detector includes the following steps:
s1, air quality detection: the working personnel starts the air suction pump, the air suction pump sucks indoor air into the detection frame through the air inlet cylinder, the lamp tube is started to emit a light source, the light source irradiates the air in the detection frame through the light shield and the first lens, particles in the air reflect flash after irradiation, scattered light irradiates the light detection receiver through the second lens, and the light detection receiver measures the content of the particles through the frequency and duration of the scattered light and transmits data to the display screen;
s2, filtering fine particles: fine particles in the air can float above the detection frame body, the detected air is discharged into the main shell of the detector through the electrostatic adsorption net, and the electrostatic adsorption net can adsorb the smaller particles, so that the purpose of filtering and separating the particles in the air is achieved;
s3, detecting larger particles: the large particles in the air are precipitated in the collecting frame through the detection probe, the detection probe can detect the change of charges carried in the particles and record the existence of the particles, the detection probe transmits detection data to the display screen through the transmission line, and a worker can know the detection result by observing the data in the display screen;
s4, preventing the accumulation of particulate matters: the operation of the air suction pump generates slight vibration, the air suction pump transmits the vibration to the vibration transmission rod, so that the vibration transmission rod drives the probe vibration rod to vibrate up and down in a reciprocating manner, and the probe vibration rod transmits the vibration to the detection probe, so that the detection probe shakes off particles adhered to the surface;
s5, cleaning particulate matters: after the detection is finished, the worker manually pulls out the collecting frame, the collecting frame can drive the fixed connecting frame and the upper device to move towards the direction away from the sealing plate, and the worker can clean the collecting frame and particles on the electrostatic adsorption net;
s6, detecting air humidity: the capacitive humidity detector can absorb moisture in the air in the detection frame, the dielectric constant in the capacitive humidity detector can change to change the capacitance value, so that the air humidity in the detection frame can be detected, and the capacitive humidity detector transmits humidity data to the display screen;
s7, accelerating exhaust: the staff presses the start key manually, makes the circular telegram of small-size motor function, and the rotation of small-size motor output shaft drives power shaft and the device rotation on it for the fan leaf rotates and takes out the air that finishes detecting in the detector owner shell.
Compared with the prior art, the invention has the following advantages:
through the arranged light detection receiver, the light detection receiver receives particles in the air, the particles are irradiated and then reflected to form flash light, and the light detection receiver measures the content of the particles through the frequency and duration of the scattered light, so that the air quality index is obtained.
Can detect the change of the electric charge that carries in the particulate matter through detecting probe to can carry out the record to the existence of particulate matter, simultaneously because the slight vibrations that the aspirator pump function produced transmit to detecting probe on, make detecting probe can shake off the sticky particulate matter in surface, avoid the last accumulational particulate matter of detecting probe too much, guarantee the accuracy that detects.
The great particulate matter in the air after detecting can deposit in collecting the frame, and the electrostatic absorption net can adsorb less particulate matter, reaches the purpose with the particulate matter filtration in the air and separation, releases the air to indoor again, accomplishes the circulation and detects step by step.
Through the fan leaf that sets up, the air that finishes of detection in the fan leaf rotation will be detected the detector owner shell is taken out, and the air of being convenient for is discharged in the detector owner shell fast, and the moisture in the quick combustion air current can blow away capacitanc moisture detector simultaneously, can reduce because the error that remaining moisture leads to on the capacitanc moisture detector.
The light that shelters from through setting up hides the dish, and light shelters from the dish and is used for sheltering from outside light, makes the simulation in the detection frame be located the darkroom environment and detect the harmful substance in the air, receives the accuracy nature that outside light's interference influence detected data when avoiding light detection receiver to detect air quality.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
Fig. 3 is a third perspective view of the present invention.
Fig. 4 is a schematic view of the present invention in a partially cut-away perspective structure.
FIG. 5 is a schematic perspective view, partially in section, of an assembly for light scattering detection techniques according to the present invention.
FIG. 6 is a partially cut-away, disassembled perspective view of an optical scattering detection technique assembly of the present invention.
Fig. 7 is a schematic perspective view of the sealing plate and the optical detection receiver according to the present invention.
FIG. 8 is a schematic diagram of a first partial body structure of an assembly according to the present invention.
FIG. 9 is a schematic diagram of a second partial body structure of an assembly according to the present invention.
FIG. 10 is a perspective view of a third embodiment of the triboelectric detection technique assembly of the present invention.
Fig. 11 is a perspective view of a particle filter assembly according to the present invention.
FIG. 12 is a schematic view of a first partially separated body structure of the capacitive humidity sensor assembly according to the present invention.
FIG. 13 is a schematic diagram of a second partially separated body structure of the capacitive humidity sensor assembly of the present invention.
FIG. 14 is a perspective view of a third embodiment of a capacitive humidity sensor assembly according to the present invention.
FIG. 15 is a perspective view of a fourth embodiment of a capacitive humidity sensor assembly according to the present invention.
Fig. 16 is a schematic perspective view of the trigger assembly of the present invention.
Fig. 17 is a partially disassembled perspective view of the present invention.
Fig. 18 is a schematic perspective view of the light shielding plate according to the present invention.
FIG. 19 is a flow chart illustrating the operation steps of the present invention.
Wherein the figures include the following reference numerals: 1. a main housing of the detector, 2, a side panel of the detector, 3, a suction pump, 31, an air inlet cylinder, 4, a display screen, 5, a fixed ventilation disk, 51, a four-corner sealing disk, 6, a top supporting plate, 7, a storage battery, 8, a light scattering detection technology component, 81, a light cover, 82, a lamp tube, 83, a detection frame body, 84, a first lens, 85, a second lens, 86, a sealing plate, 87, a light detection receiver, 9, a friction static electricity detection technology component, 91, a detection probe, 92, a vibration transmission rod, 93, a probe vibration rod, 94, a transmission line, 95, a fixed groove plate, 96, a reset spring, 10, a particle filtering component, 101, a collection frame, 102, a fixed connection frame, 103, a top filtering frame, 104, an electrostatic adsorption net, 11, a capacitance humidity detection component, 111, an air outlet frame, 112, a small motor, 113, a power shaft, 114, a power gear, 1141 and a fan blade, 115. lifting rack, 116, extrusion spring, 117, sliding dial plate, 118, compression spring, 119, connecting rod, 1120, capacitance type moisture detector, 12, trigger component, 121, fixed trigger rod, 122, rotary gear, 13 and light shielding plate.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Example 1
An indoor air quality detector and a detection method thereof are disclosed, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 16 and fig. 17, comprising a detector main shell 1, a detector side panel 2, an air suction pump 3, an air inlet cylinder 31, a display screen 4, a fixed ventilation disk 5, a four-corner sealing disk 51, a top supporting plate 6, a storage battery 7, a light scattering detection technical assembly 8, a friction static detection technical assembly 9 and a particle filtering assembly 10, wherein the detector side panel 2 is fixedly installed on the right side of the detector main shell 1, the air suction pump 3 for sucking indoor air into the device is arranged on the left side of the detector main shell 1, the air inlet cylinder 31 is fixedly connected to the air suction pump 3, the display screen 4 for displaying detection data is fixedly installed above the rear side of the detector main shell 1, the fixed ventilation disk 5 is arranged below the detector side panel 2, fixed ventilation disk 5 is last the rotation type be connected with four corners sealing disk 51, four corners sealing disk 51 is used for keeping off fixed ventilation disk 5, top fixed mounting has top layer board 6 in the detector owner shell 1, fixed mounting has battery 7 in the top layer board 6, light scattering detection technology subassembly 8 is located detector owner shell 1, light scattering detection technology subassembly 8 is used for detecting the room air quality, be provided with the friction electrostatic detection technology subassembly 9 that is arranged in the particulate matter of detection air on the light scattering detection technology subassembly 8, the slip type is connected with particle filtration subassembly 10 on the detector owner shell 1.
The light scattering detection technical component 8 comprises a light shade 81, a lamp 82, a detection frame body 83, a first lens 84, a second lens 85, a sealing plate 86 and a light detection receiver 87, wherein the light shade 81 is fixedly installed on the front side in the detector main shell 1, the lamp 82 is arranged in the light shade 81, the detection frame body 83 is fixedly installed on the left side in the detector main shell 1, the detection frame body 83 is used for detecting air, the first lens 84 is arranged on the front side of the detection frame body 83, the second lens 85 is arranged on the rear side of the detection frame body 83, the sealing plate 86 is fixedly installed on the rear side of the detection frame body 83, the light detection receiver 87 is positioned in the sealing plate 86, and the light detection receiver 87 is used for detecting the content of particles.
The friction electrostatic detection technical component 9 comprises a detection probe 91, a vibration transmission rod 92, a probe vibration rod 93, a transmission line 94, a fixed slot plate 95 and a return spring 96, wherein the detection probe 91 is fixedly connected with the detection probe 91 at the lower part in the detection frame body 83 in an evenly arranged mode, the detection probe 91 is used for detecting the change of charges carried in particles, the vibration transmission rod 92 is connected with the left position of the front side of the detection frame body 83 in a sliding mode, the probe vibration rod 93 is welded at the bottom end of the vibration transmission rod 92, the probe vibration rod 93 is contacted with the detection probe 91, the detection probe 91 is commonly connected with the transmission line 94, the top end of the transmission line 94 is connected with the display screen 4, the transmission line 94 penetrates through the main casing 1 of the detector, the fixed slot plate 95 is fixedly connected with the left side in the main casing 1 of the detector, the fixed slot plate 95 is connected with the vibration transmission rod 92 in a sliding mode, the fixed slot plate 95 is contacted with the suction pump 3, the suction pump 3 is used for transmitting the vibration generated by itself to the fixed slot plate 95, a return spring 96 is connected between the vibration transmission rod 92 and the fixed groove plate 95.
Particle filtration subassembly 10 is including collecting frame 101, fixed connection frame 102, top filter frame 103 and electrostatic absorption net 104, detector owner shell 1 below sliding connection has the collection frame 101 that is used for collecting great particulate matter, collect frame 101 and the contact of detection framework 83, detector owner shell 1 top sliding connection has fixed connection frame 102, fixed connection frame 102 and the fixed surface building of collection frame 101, fixed connection frame 102 goes up fixed mounting has top filter frame 103, top filter frame 103 and the contact of detection framework 83, top filter frame 103 and top layer board 6 inter contact, be provided with three electrostatic absorption nets 104 on the filter frame 103 of top, electrostatic absorption net 104 is used for adsorbing less particulate matter.
When the device is used for detecting harmful substances in indoor air, the device is placed indoors, a worker manually starts the air suction pump 3, the air suction pump 3 sucks the indoor air into the detection frame body 83 through the air inlet cylinder 31, the worker presses a start key to start the lamp 82 to emit light, the light source irradiates the air in the detection frame body 83 through the light shield 81 and the first lens 84, particles in the air are irradiated and then reflected to form flash light, scattered light is irradiated onto the light detection receiver 87 through the second lens 85, the light detection receiver 87 converts the light signal into an electric signal, then the electric signal is amplified by the electronic circuit and then is restored into an original signal, the light detection receiver 87 measures the content of the particles through the frequency and duration of the scattered light and transmits data to the display screen 4, and the detection operation of the air quality is completed.
Tiny particulate matter in the air can float to detecting frame 83 top, and the air after the detection passes through electrostatic absorption net 104 and discharges to detector main casing 1 in, and electrostatic absorption net 104 can be with less particulate matter absorption, reaches the purpose with particulate matter filtration and separation in the air. The great particulate matter in the air can deposit in collecting frame 101, and the great particulate matter in the air deposits the in-process and can pass through detection probe 91, and detection probe 91 can detect the change of the electric charge that carries in the particulate matter to can record the existence of particulate matter, detection probe 91 passes through transmission line 94 and will detect data transfer to display screen 4 in, and the staff knows the testing result through the data of observing in the display screen 4.
Can produce slight vibrations when getter pump 3 operates, getter pump 3 can transmit vibrations to vibrations transfer rod 92 on to vibrations transfer rod 92 can drive probe vibrations pole 93 vibrations reciprocal from top to bottom, and then probe vibrations pole 93 can transmit vibrations to detecting probe 91 on, makes detecting probe 91 shake off the sticky particulate matter of surface adhesion, and it is too much to avoid accumulational particulate matter on detecting probe 91, guarantees the accuracy that detects.
Repeat above-mentioned operation, gradually accomplish the circulation and detect, detect the completion back, staff's manual rotation four corners sealing disc 51 for four corners sealing disc 51 no longer blocks fixed ventilative dish 5, make the air discharge in from detector main casing 1 through fixed ventilative dish 5, staff is manual will collect frame 101 and pull out, collect frame 101 and can drive fixed connection frame 102 and the last device and move towards keeping away from shrouding 86 direction, the staff can clear up collecting frame 101 and the particulate matter on the electrostatic absorption net 104.
Example 2
Based on embodiment 1, as shown in fig. 11, 12, 13, 14 and 15, the humidity measuring device further includes a capacitive humidity detecting assembly 11, the capacitive humidity detecting assembly 11 is disposed on the side panel 2 of the measuring instrument, the capacitive humidity detecting assembly 11 is used for detecting the air humidity in the measuring frame 83, the capacitive humidity detecting assembly 11 includes an air outlet frame 111, a small motor 112, a power shaft 113, a power gear 114, a fan blade 1141, a lifting rack 115, a pressing spring 116, a sliding dial plate 117, a compression spring 118, a connecting rod 119 and a capacitive humidity detector 1120, the left side of the side panel 2 of the measuring instrument is fixedly installed with the air outlet frame 111, the right side of the air outlet frame 111 is fixedly installed with the small motor 112 for driving, an output shaft of the small motor 112 is fixedly connected with the power shaft 113, the power shaft 113 is connected with the air outlet frame 111, the power shaft 113 is fixedly connected with the power gear 114, fan blade 1141 rigid coupling is in power shaft 113 middle part, fan blade 1141 is used for taking out the air that finishes detecting in the detector main casing 1, lifting rack 115 sliding connection is on detector side board 2, lifting rack 115 and power gear 114 intermeshing, be connected with extrusion spring 116 between lifting rack 115 and the detector side board 2, sliding connection has the slip to dial board 117 on lifting rack 115, be connected with two compression spring 118 between slip dial board 117 and the lifting rack 115, fixedly connected with connecting rod 119 on lifting rack 115, the welding of connecting rod 119 left end has capacitanc moisture detector 1120, capacitanc moisture detector 1120 is used for detecting the air humidity in the detection framework 83, capacitanc moisture detector 1120 is located the detection framework 83.
When the device is operated, the capacitive humidity detector 1120 absorbs moisture in the air in the detection frame 83, the dielectric constant of the capacitive humidity detector 1120 changes to change the capacitance value, so as to detect the air humidity in the detection frame 83, and the capacitive humidity detector 1120 transmits the humidity data to the display 4. When the device is operated, a worker manually presses the start key to electrify the small motor 112 to operate, the output shaft of the small motor 112 rotates to drive the power shaft 113 and the upper device to rotate, the fan 1141 rotates to draw out the air detected in the main casing 1 of the detector, so that the air can be discharged from the main casing 1 of the detector rapidly, meanwhile, the rotation of the power gear 114 drives the lifting rack 115 to move downwards, and through the action of the sliding dial plate 117 and the compression spring 118, so that the lifting rack 115 and the devices thereon are always in a downward movement state, the downward movement of the capacitive moisture detector 1120 no longer detects the air in the detection frame 83, the air flow can blow away the moisture on the capacitive humidity detector 1120 when the air in the main housing 1 of the detector is rapidly exhausted, so as to avoid the moisture remaining on the capacitive humidity detector 1120 during the subsequent detection, further, an error due to moisture remaining on the capacitive humidity detector 1120 can be reduced.
Example 3
On the basis of embodiment 2, as shown in fig. 16 and 17, the four-corner sealing device further includes a trigger assembly 12, the trigger assembly 12 is disposed above the lifting rack 115, the trigger assembly 12 is used for rotating the four-corner sealing disc 51 to open the fixed vent disc 5, the trigger assembly 12 includes a fixed trigger rod 121 and a rotating gear 122, the fixed trigger rod 121 is fixedly connected above the lifting rack 115, the fixed trigger rod 121 is slidably connected with the side panel 2 of the measuring instrument, and the rotating gear 122 is fixedly connected to the four-corner sealing disc 51.
The lifting rack 115 moves downwards to drive the fixed trigger rod 121 to move downwards, the fixed trigger rod 121 drives the rotary gear 122 and the four-corner sealing disc 51 to rotate, the four-corner sealing disc 51 does not block the fixed vent disc 5, and the trouble of manually rotating the four-corner sealing disc 51 is avoided.
Example 4
On the basis of embodiment 3, as shown in fig. 1 and 18, the air intake tube 31 further includes a light shielding plate 13, the top of the air intake tube 31 is provided with the light shielding plate 13, and the light shielding plate 13 is used for shielding external light.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an indoor air quality detector, is including detector owner shell (1), its characterized in that, still including: the detector side panel (2) is fixedly arranged on the right side of the detector main shell (1); the air suction pump (3) is arranged on the left side of the detector main shell (1), and the air suction pump (3) is used for sucking indoor air into the equipment for detection;
the air suction pump (3) is fixedly connected with an air inlet cylinder (31), and the air inlet cylinder (31) is used for conveying air;
the display screen (4) is fixedly arranged above the rear side of the detector main shell (1), and the display screen (4) is used for displaying detection data;
the detector comprises a fixed ventilation disc (5), wherein the fixed ventilation disc (5) is arranged below a side panel (2) of the detector, the fixed ventilation disc (5) is used for discharging air in a main shell (1) of the detector, a four-corner sealing disc (51) is rotatably connected to the fixed ventilation disc (5), and the four-corner sealing disc (51) is used for blocking the fixed ventilation disc (5);
the detector comprises a top supporting plate (6), wherein the top supporting plate (6) is fixedly arranged above the inside of a main shell (1) of the detector, a storage battery (7) is fixedly arranged in the top supporting plate (6), and the storage battery (7) is used for supplying power to equipment;
the light scattering detection technology assembly (8), the light scattering detection technology assembly (8) is positioned in the detector main shell (1), and the light scattering detection technology assembly (8) is used for detecting the content of particulate matters in the air;
the light scattering detection technology component (8) is provided with a frictional static detection technology component (9), and the frictional static detection technology component (9) is used for detecting particles in the air;
the particle filtering component (10) is connected to the detector main shell (1) in a sliding mode, and the particle filtering component (10) is used for filtering and separating fine particles.
2. The indoor air quality detector according to claim 1, wherein the light scattering detection technology assembly (8) comprises a light shield (81), a lamp tube (82), a detection frame (83), a first lens (84), a second lens (85), a sealing plate (86) and a light detection receiver (87), the light shield (81) is fixedly installed on the front side in the detector main shell (1), the lamp tube (82) is installed in the light shield (81), the detection frame (83) is fixedly installed on the left side in the detector main shell (1), the first lens (84) is installed on the front side of the detection frame (83), the second lens (85) is installed on the rear side of the detection frame (83), the sealing plate (86) is fixedly installed on the rear side of the detection frame (83), and the light detection receiver (87) is positioned in the sealing plate (86).
3. The indoor air quality detector according to claim 2, wherein the friction electrostatic detection assembly (9) comprises detection probes (91), a vibration transmission rod (92), a probe vibration rod (93), a transmission line (94), a fixed slot plate (95) and a return spring (96), the detection probes (91) are fixedly connected to the lower portion of the detection frame body (83) in a uniformly arranged manner, the vibration transmission rod (92) is slidably connected to the left portion of the front side of the detection frame body (83), the probe vibration rod (93) is welded to the bottom end of the vibration transmission rod (92), the probe vibration rod (93) is in contact with the detection probes (91), the transmission line (94) is commonly connected to the detection probes (91), the top end of the transmission line (94) is connected to the display screen (4), the transmission line (94) penetrates through the detector main casing (1), the fixed slot plate (95) is fixedly connected to the left portion of the inside the detector main casing (1), the fixed groove plate (95) is connected with the vibration transmission rod (92) in a sliding mode, the fixed groove plate (95) is in contact with the air suction pump (3), and a return spring (96) is connected between the vibration transmission rod (92) and the fixed groove plate (95).
4. The indoor air quality detector according to claim 3, wherein the particle filter assembly (10) comprises a collection frame (101), a fixed connection frame (102), a top filter frame (103) and an electrostatic adsorption net (104), the collection frame (101) is slidably connected below the detector main shell (1), the collection frame (101) is in contact with the detection frame body (83), the fixed connection frame (102) is slidably connected above the detector main shell (1), the fixed connection frame (102) is fixedly connected with the top surface of the collection frame (101), the top filter frame (103) is fixedly installed on the fixed connection frame (102), the top filter frame (103) is in contact with the detection frame body (83), the top filter frame (103) is in contact with the top support plate (6), and the three electrostatic adsorption nets (104) are arranged on the top filter frame (103).
5. The indoor air quality detecting instrument according to claim 4, wherein after the electrostatic absorption net (104) is electrified, the charged body has the property of attracting light and small objects, and the particles in the air are attracted and attached to the electrostatic absorption net (104), so that the air and the particles in the air are filtered and separated.
6. The indoor air quality detector according to claim 4, further comprising a capacitive humidity detection assembly (11), wherein the capacitive humidity detection assembly (11) is disposed on the detector side panel (2), the capacitive humidity detection assembly (11) comprises an air outlet frame (111), a small motor (112), a power shaft (113), a power gear (114), a fan blade (1141), a lifting rack (115), an extrusion spring (116), a sliding dial plate (117), a compression spring (118), a connecting rod (119) and a capacitive humidity detector (1120), the air outlet frame (111) is fixedly mounted on the left side of the detector side panel (2), the small motor (112) is fixedly mounted on the right side of the air outlet frame (111), the power shaft (113) is fixedly connected to an output shaft of the small motor (112), and the power shaft (113) is rotatably connected to the air outlet frame (111), last fixed connection of power axle (113) has power gear (114), fan leaf (1141) rigid coupling in power axle (113) middle part, lifting rack (115) sliding connection is on detector side board (2), lifting rack (115) and power gear (114) intermeshing, be connected with extrusion spring (116) between lifting rack (115) and the detector side board (2), sliding connection has the slip to dial board (117) on lifting rack (115), be connected with two compression spring (118) between slip dial board (117) and lifting rack (115), fixedly connected with connecting rod (119) on lifting rack (115), connecting rod (119) left end welding has capacitanc moisture detector (1120), capacitanc moisture detector (1120) are located detection framework (83).
7. The indoor air quality detector according to claim 6, further comprising a trigger assembly (12), wherein the trigger assembly (12) is arranged above the lifting rack (115), the trigger assembly (12) comprises a fixed trigger rod (121) and a rotating gear (122), the fixed trigger rod (121) is fixedly connected above the lifting rack (115), the fixed trigger rod (121) is slidably connected with the side panel (2) of the detector, and the rotating gear (122) is fixedly connected to the four-corner sealing disc (51).
8. The indoor air quality detector according to claim 7, further comprising a light shielding plate (13), wherein the light shielding plate (13) is arranged at the top of the air inlet cylinder (31).
9. The indoor air quality detecting instrument and the detecting method thereof according to claim 8, wherein the light shielding plate (13) is in a spiral arc shape, the light shielding plate (13) is used for shielding external light so that harmful substances in the air can be detected in a darkroom environment simulated in the detecting frame body (83), and the light shielding plate (13) can shield the external light and ensure that the indoor air can be sucked into the air inlet cylinder (31).
10. A detection method of an indoor air quality detector is characterized by comprising the following working steps:
s1, air quality detection: the method comprises the following steps that a worker starts an air suction pump (3), the air suction pump (3) sucks indoor air into a detection frame body (83) through an air inlet cylinder (31), a lamp tube (82) is started to emit a light source, the light source irradiates the air in the detection frame body (83) through a light shield (81) and a first lens (84), particles in the air are irradiated and then reflected to form flash, scattered light irradiates a light detection receiver (87) through a second lens (85), and the light detection receiver (87) measures the content of particles through the frequency and duration of the scattered light and transmits data to a display screen (4);
s2, filtering fine particles: fine particles in the air can float above the detection frame body (83), the detected air is discharged into the detector main shell (1) through the electrostatic adsorption net (104), and the electrostatic adsorption net (104) can adsorb the small particles to achieve the purpose of filtering and separating the particles in the air;
s3, detecting larger particles: the large particles in the air are precipitated in the collection frame (101) through the detection probe (91), the detection probe (91) can detect the change of charges carried in the particles and record the existence of the particles, the detection probe (91) transmits detection data to the display screen (4) through the transmission line (94), and a worker can know the detection result by observing the data in the display screen (4);
s4, preventing the accumulation of particulate matters: the operation of the air suction pump (3) generates slight vibration, the air suction pump (3) transmits the vibration to the vibration transmission rod (92), so that the vibration transmission rod (92) can drive the probe vibration rod (93) to vibrate up and down in a reciprocating manner, and the probe vibration rod (93) transmits the vibration to the detection probe (91), so that particles with sticky surfaces can be shaken off by the detection probe (91);
s5, cleaning particulate matters: after the detection is finished, the worker manually pulls out the collecting frame (101), the collecting frame (101) can drive the fixed connecting frame (102) and the device on the fixed connecting frame to move towards the direction far away from the sealing plate (86), and the worker can clean the particles on the collecting frame (101) and the electrostatic adsorption net (104);
s6, detecting air humidity: the capacitance type humidity detector (1120) absorbs moisture in the air in the detection frame body (83), the dielectric constant in the capacitance type humidity detector (1120) changes to change the capacitance value, so that the humidity of the air in the detection frame body (83) can be detected, and the capacitance type humidity detector (1120) transmits humidity data to the display screen (4);
s7, accelerating exhaust: the staff presses the start key manually, makes small-size motor (112) circular telegram operation, and small-size motor (112) output shaft rotates and drives power shaft (113) and the device rotation on it for fan leaf (1141) rotates and takes out the air that finishes detecting in detector owner shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111111910.3A CN113702597A (en) | 2021-09-18 | 2021-09-18 | Indoor air quality detector and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111111910.3A CN113702597A (en) | 2021-09-18 | 2021-09-18 | Indoor air quality detector and detection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113702597A true CN113702597A (en) | 2021-11-26 |
Family
ID=78661527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111111910.3A Pending CN113702597A (en) | 2021-09-18 | 2021-09-18 | Indoor air quality detector and detection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113702597A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166100A (en) * | 2021-12-01 | 2022-03-11 | 烟台景上科技有限公司 | Flatness detection device for project supervision and use method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101952709A (en) * | 2007-11-15 | 2011-01-19 | 爱克斯崔里斯科技有限公司 | Particle detection |
| KR101801087B1 (en) * | 2017-07-10 | 2017-11-27 | 동우옵트론 주식회사 | Particle measuring apparatus using light scattering |
| CN107884317A (en) * | 2016-09-29 | 2018-04-06 | 香港城市大学 | Particulate matter sensors |
| CN110595967A (en) * | 2019-08-02 | 2019-12-20 | 张家界航空工业职业技术学院 | Dust concentration detector |
| CN210953970U (en) * | 2019-09-27 | 2020-07-07 | 长沙致微检测技术服务有限公司 | Air quality detection device for processing plant |
| CN111398114A (en) * | 2020-05-08 | 2020-07-10 | 国网内蒙古东部电力有限公司呼伦贝尔供电公司 | Fine particle detection device and method based on light scattering principle |
| CN211785464U (en) * | 2020-04-15 | 2020-10-27 | 杨鼎 | Indoor air detector |
-
2021
- 2021-09-18 CN CN202111111910.3A patent/CN113702597A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101952709A (en) * | 2007-11-15 | 2011-01-19 | 爱克斯崔里斯科技有限公司 | Particle detection |
| CN107884317A (en) * | 2016-09-29 | 2018-04-06 | 香港城市大学 | Particulate matter sensors |
| KR101801087B1 (en) * | 2017-07-10 | 2017-11-27 | 동우옵트론 주식회사 | Particle measuring apparatus using light scattering |
| CN110595967A (en) * | 2019-08-02 | 2019-12-20 | 张家界航空工业职业技术学院 | Dust concentration detector |
| CN210953970U (en) * | 2019-09-27 | 2020-07-07 | 长沙致微检测技术服务有限公司 | Air quality detection device for processing plant |
| CN211785464U (en) * | 2020-04-15 | 2020-10-27 | 杨鼎 | Indoor air detector |
| CN111398114A (en) * | 2020-05-08 | 2020-07-10 | 国网内蒙古东部电力有限公司呼伦贝尔供电公司 | Fine particle detection device and method based on light scattering principle |
Non-Patent Citations (1)
| Title |
|---|
| 周鑫: "光散射法PM2.5传感器的性能比对及优化", 环境与健康杂志, vol. 33, no. 08, pages 739 - 743 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166100A (en) * | 2021-12-01 | 2022-03-11 | 烟台景上科技有限公司 | Flatness detection device for project supervision and use method thereof |
| CN114166100B (en) * | 2021-12-01 | 2023-09-22 | 浙江宏宝项目管理咨询有限公司 | Flatness detection device for engineering supervision and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104545699B (en) | Robot cleaner and its dust detection method | |
| CN206818569U (en) | A kind of portable air pollution detection means | |
| CN113702597A (en) | Indoor air quality detector and detection method thereof | |
| CN114594031A (en) | Tape type air particulate matter concentration continuous measurement device based on differential pressure method | |
| CN208621586U (en) | Air detecting device with self-cleaning function | |
| CN104297119A (en) | Method for giving alarm on out-of-limit concentration of inhalable particulate matter (PM) in air | |
| CN104282117B (en) | A kind of air inspirable particle concentration off-limit alarm device | |
| CN208636288U (en) | A kind of automated environment monitoring device | |
| CN109024425A (en) | A kind of height-adjustable vacuum sweeper | |
| CN213780038U (en) | Air quality detection device | |
| CN108872038A (en) | Indoor environment monitoring system based on internet of things | |
| CN211148156U (en) | Domestic forced ventilation type particulate matter detector | |
| CN211258766U (en) | Diesel engine DPF carbon-loading testing device | |
| CN112545389B (en) | Novel cleaning robot | |
| CN213422927U (en) | Mask particulate matter filtration efficiency and respiratory resistance detection device | |
| CN110420507B (en) | Device capable of automatically absorbing smoke and using method | |
| CN212167054U (en) | Monitoring device for environmental protection detection | |
| CN214251928U (en) | Mine dust detection sensor | |
| CN210427149U (en) | Low-flow air sampling device | |
| CN2220075Y (en) | Small radon continuous automatic monitor | |
| CN112485168A (en) | Leave appearance area and droplet concentration real-time supervision device | |
| CN112873232A (en) | Multi-angle monitoring robot for underground pipe gallery | |
| CN218445371U (en) | Indoor formaldehyde detector | |
| CN206848123U (en) | A kind of air suspended particulate detection means | |
| CN219519903U (en) | Cleaning instrument and analysis system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |