CN110567764B - Outdoor air quality monitoring device who possesses sample collection and stores function - Google Patents
Outdoor air quality monitoring device who possesses sample collection and stores function Download PDFInfo
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- CN110567764B CN110567764B CN201910885317.0A CN201910885317A CN110567764B CN 110567764 B CN110567764 B CN 110567764B CN 201910885317 A CN201910885317 A CN 201910885317A CN 110567764 B CN110567764 B CN 110567764B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- 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
- G01N33/0022—General constructional details of gas analysers, e.g. portable test equipment using a number of analysing channels
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Abstract
The invention discloses an outdoor air quality monitoring device with sample collection and storage functions, and particularly relates to the technical field of air monitoring. According to the invention, the collection cylinder is connected with the two air channels, when the electromagnetic valve is closed, the miniature air pump is started, air passes through the vent from the interior of the collection cylinder and is conveyed to the monitoring mechanism to monitor the air quality, when the air needs to be sampled, the two electric push rods are simultaneously started, the sealing rod closes the vent, the collection cylinder is sealed to collect the air, the electromagnetic valve is simultaneously opened, the air is normally transmitted from the vent pipe, the air can be uninterruptedly monitored in real time, the closing door is opened, the collected sample is taken out, the use is convenient, and compared with the prior art, the air quality can be monitored while the sample is collected and stored.
Description
Technical Field
The invention relates to the technical field of air monitoring, in particular to an outdoor air quality monitoring device with a sample collection and storage function.
Background
Air pollution has become a key object of national environmental detection, and how to detect chemical elements and harmful substances in gas is a key point for solving air pollution.
At present, two gas samplers are mainly available on the market, one is an electronic gas sampler which has the advantages of compact rhythm, small volume, stable and reliable performance and the like, but is mainly suitable for gas collection in a large uniform gas environment, and the effect of collecting gas in a small range such as second-hand smoke, automobile exhaust and the like is not ideal; the other type is a traditional needle tube type gas sampler, which has the advantages of high collection speed and simple operation, but the traditional needle tube type gas sampler cannot be used as a container for storing gas, so that the gas needs to be put into the storage container again, the collected gas is inevitably polluted in the process, the subsequent detection result is influenced, the actual use requirement cannot be met, and the air quality can not be monitored while the sample is collected and stored.
Therefore, it is necessary to provide an outdoor air quality monitoring device with sample collection and storage functions to solve the above problems.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide an outdoor air quality monitoring device with sample collection and storage functions, wherein a collection cylinder is connected to two air channels, a micro air pump is started when an electromagnetic valve is closed, air passes through a vent from the interior of the collection cylinder and is conveyed to a monitoring mechanism to monitor air quality, when air needs to be sampled, two electric push rods are simultaneously started to close the vent by a sealing rod, the collection cylinder is sealed to collect air, the electromagnetic valve is simultaneously opened to normally transmit air from a vent pipe, the air can be uninterruptedly monitored in real time, a closing door is opened to take out a collected sample, and the device is convenient to use.
In order to achieve the purpose, the invention provides the following technical scheme: an outdoor air quality monitoring device with sample collection and storage functions comprises a mounting substrate, wherein a placing groove is formed in the top of the mounting substrate, a power module is fixedly connected in the placing groove, a sample collection mechanism is arranged on one side of the placing groove, and a monitoring mechanism is arranged on the other side of the placing groove;
the sample collecting mechanism comprises a first box body, the bottom end in the first box body is fixedly connected with a lower clamping seat, an upper clamping seat is fixedly connected with the top end in the first box body, an acquisition cylinder is arranged between the lower clamping seat and the upper clamping seat, the lower clamping seat and the upper clamping seat are provided with clamping grooves at one side close to the collecting cylinder, clamping heads are arranged at two ends of the collecting cylinder, the two clamping grooves are respectively matched with the two clamping heads, a cavity is arranged in the lower clamping seat, a brushless fan is arranged in the cavity, air channels are arranged in the lower clamping seat and the upper clamping seat, the air channel penetrates through the lower clamping seat, the upper clamping seat and two ends of the first box body, the top of the first box body is fixedly connected with a micro air pump, a vent pipe is arranged between the cavity and an air channel in the upper clamping seat, an electromagnetic valve is arranged in one end of the vent pipe, and a closing door is hinged to the outer side of the first box body;
the collecting cylinder is characterized in that limiting grooves are formed in two ends of the collecting cylinder, a sealing ring is sleeved on the outer side of each limiting groove, the two ends of the collecting cylinder are respectively connected with the lower clamping seat and the upper clamping seat in a sealing manner through the sealing ring, two groups of limiting slide bars which are symmetrically distributed are fixedly connected to the two ends of the inner wall of the collecting cylinder, a piston is arranged between the two limiting slide bars, a linear bearing is arranged at the joint of the piston and the limiting slide bars, the piston is connected with the limiting slide bars in a sliding manner through the linear bearing, sealing rubber pads are arranged at two ends of the linear bearing, a plurality of symmetrically distributed sealing bars are fixedly connected to two ends of the inner wall of the collecting cylinder, a plurality of uniformly distributed ventilation openings are formed in the outer side of the upper surface of the piston, the sealing bars are matched with the ventilation openings, and a first spring is sleeved at one end, close to the sealing bars, on the outer sides of the limiting slide bars, the inner walls of the two air channels are fixedly connected with electric push rods, and the output ends of the electric push rods are matched with the sealing rings;
the collecting cylinder is characterized in that sliding grooves are formed in two sides of the collecting cylinder, arc-shaped latches are connected in the sliding grooves in a sliding mode, second springs are arranged at the bottoms of the sliding grooves, a pulling rod is arranged at one end of each arc-shaped latch, the second springs are sleeved on the outer side of the pulling rod, the pulling rod penetrates through the sliding grooves and the outer wall of the collecting cylinder, and air bag pieces are fixedly connected to the outer sides of the through holes of the pulling rod and the collecting cylinder.
In a preferred embodiment, the monitoring mechanism comprises a second box body, the second box body is fixedly connected to the top of the mounting substrate, a third box body is fixedly connected to the top of the second box body, a fourth box body is fixedly connected to the top of the third box body, an air passing cover is arranged at the top of the fourth box body, a first air quality sensor is arranged inside the third box body, and a second air quality sensor is arranged inside the fourth box body.
In a preferred embodiment, a display screen is arranged outside the second box body, barrier indicating lamps are arranged on two sides of the display screen, a single chip microcomputer is arranged inside the second box body, obliquely distributed dust collecting plates are fixedly connected inside the third box body and the fourth box body, dust collecting drawers are arranged at the bottom ends of the two dust collecting plates, and the two dust collecting drawers are respectively connected with the third box body and the fourth box body in a sliding mode.
In a preferred embodiment, the bottom end outside the first box body is fixedly connected with a first filter plate, the bottom of the air passing cover is provided with a second filter plate, the first filter plate is fixedly connected with a mounting substrate, the second filter plate is matched with the inner wall of the fourth box body, the cross-sectional shape of the air passing cover is a T shape, a connecting seat is arranged inside the top end of the fourth box body, a connecting rod is arranged between the connecting seat and the fourth box body, and the air passing cover is in threaded connection with the connecting seat.
In a preferred embodiment, the input end of the micro air pump is matched with the air channel at the top end of the upper clamping seat, one side of the third box body is provided with an air inlet, the output end of the micro air pump is matched with the air inlet, and the first air quality sensor and the second air quality sensor are both arranged at the top end of the dust collecting plate.
In a preferred embodiment, a heating assembly is arranged inside the first box body, the heating assembly is provided with a warm lamp, one side of the third box body is provided with an exhaust hole, and a one-way valve is arranged in the exhaust hole.
In a preferred embodiment, the bottom of the mounting substrate is provided with support legs, and the support legs are provided as floor type triangular supports.
In a preferred embodiment, the micro air pump, the first air quality sensor, the second air quality sensor, the single chip microcomputer, the electric push rod, the obstacle indicating lamp, the electromagnetic valve, the display screen, the brushless fan and the heating assembly are all electrically connected with the power module.
In a preferred embodiment, an a/D converter is arranged at an input end of the single chip microcomputer, a D/a converter is arranged at an output end of the single chip microcomputer, the first air quality sensor and the second air quality sensor are both electrically connected with the a/D converter, the electric push rod, the obstacle indicating lamp and the electromagnetic valve are all electrically connected with the D/a converter, and the single chip microcomputer is electrically connected with the display screen.
The invention has the technical effects and advantages that:
1. the collection cylinder is connected with two air channels, the miniature air pump is started under the condition that the electromagnetic valve is closed, air passes through the vent hole from the interior of the collection cylinder and is conveyed to the monitoring mechanism to monitor the air quality, when the air needs to be sampled, the two electric push rods are simultaneously started to enable the sealing rod to close the vent hole, the collection cylinder is sealed to collect the air in a sealing manner, the electromagnetic valve is simultaneously opened to enable the air to be normally transmitted from the vent pipe, the air can be uninterruptedly monitored in real time, the closing door is opened, the collected sample is taken out, and the collection cylinder is convenient to use;
2. the brushless fan rotates to guide air to enter, and simultaneously air is stirred to be uniformly distributed, a first air quality sensor and a second air quality sensor are respectively arranged in a third box body and a fourth box body, normal outdoor air and air quality after passing through an acquisition cylinder are detected in a contrasting manner, detection signals are converted into data signals to be sent to the single chip microcomputer, the single chip microcomputer analyzes data differences and displays the data on a display screen in real time, when the differences of the two data are larger than a set value, the single chip microcomputer controls a barrier lamp to flash for prompting, the situation can be conveniently and rapidly processed, internal cleaning can be conveniently carried out, similarly, the accuracy of data detection can be improved, and compared with the prior art, the detection accuracy is high;
3. through inside the timely heating first box of start-up heating element, reduce the detection error that leads to because of the humidity change, improve and detect the precision, first filter and second filter impurity and interception insect at two sense terminal input ports respectively, the convenient ash removal of dust collecting plate and dust collection drawer, and install overall structure compactness, convenient to detach clearance is compared with prior art, is convenient for clear up inside the equipment.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an overall front view of the present invention.
Fig. 3 is an overall top view of the present invention.
Fig. 4 is a schematic view of the internal structure of the collection cartridge of the present invention.
Fig. 5 is a top view of the piston of the present invention.
FIG. 6 is an enlarged view of the portion A of FIG. 1 according to the present invention.
FIG. 7 is an enlarged view of the portion B of FIG. 4 according to the present invention.
FIG. 8 is an enlarged view of the structure of the portion C of FIG. 1 according to the present invention.
Fig. 9 is a schematic structural diagram of a control system of the present invention.
The reference signs are: the device comprises a mounting base plate 1, a power supply module 2, a collection mechanism 3, a monitoring mechanism 4, a first box 5, a lower clamping seat 6, an upper clamping seat 7, a collection cylinder 8, a clamping head 9, a brushless fan 10, a miniature air pump 11, a vent pipe 12, an electromagnetic valve 13, a sealing ring 14, a limiting slide rod 15, a piston 16, a sealing rod 17, a vent hole 18, a first spring 19, an electric push rod 20, an arc-shaped lock catch 21, a second spring 22, a pull rod 23, an air bag piece 24, a second box 25, a third box 26, a fourth box 27, an air passing cover 28, a first air quality sensor 29, a second air quality sensor 30, a display screen 31, a barrier indicating lamp 32, a single chip 33, a dust collection plate 34, a dust collection drawer 35, a first filter plate 36, a second filter plate 37, a connecting seat 38, a heating assembly 39, a one-way valve 40 and supporting legs 41.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The outdoor air quality monitoring device with the sample collection and storage functions shown in fig. 1-7 comprises a mounting substrate 1, wherein a placing groove is formed in the top of the mounting substrate 1, a power module 2 is fixedly connected in the placing groove, a sample collection mechanism 3 is arranged on one side of the placing groove, and a monitoring mechanism 4 is arranged on the other side of the placing groove;
the sample collection mechanism 3 comprises a first box body 5, a lower clamping seat 6 is fixedly connected to the bottom end inside the first box body 5, an upper clamping seat 7 is fixedly connected to the top end inside the first box body 5, a collection cylinder 8 is arranged between the lower clamping seat 6 and the upper clamping seat 7, clamping grooves are respectively formed in one sides, close to the collection cylinder 8, of the lower clamping seat 6 and the upper clamping seat 7, clamping heads 9 are respectively arranged at two ends of the collection cylinder 8, the two clamping grooves are respectively matched with the two clamping heads 9, a cavity is arranged inside the lower clamping seat 6, a brushless fan 10 is arranged in the cavity, air channels are respectively arranged inside the lower clamping seat 6 and the upper clamping seat 7, the air channels penetrate through the lower clamping seat 6, the upper clamping seat 7 and two ends of the first box body 5, a miniature air pump 11 is fixedly connected to the top of the first box body 5, and a miniature air pump 12 is arranged between the cavity and the air channels inside the upper clamping seat 7, an electromagnetic valve 13 is arranged in one end of the vent pipe 12, and a closing door is hinged to the outer side of the first box body 5;
the collecting cylinder 8 is provided with limiting grooves at two ends, a sealing ring 14 is sleeved outside the limiting grooves, two ends of the collecting cylinder 8 are respectively connected with the lower clamping seat 6 and the upper clamping seat 7 in a sealing manner through the sealing ring 14, two groups of limiting slide bars 15 which are symmetrically distributed are fixedly connected at two ends of the inner wall of the collecting cylinder 8, the number of the limiting slide bars 15 in each group is two, a piston 16 is arranged between the two limiting slide bars 15, a linear bearing is arranged at the joint of the piston 16 and the limiting slide bars 15, the piston 16 and the limiting slide bars 15 are connected in a sliding manner through the linear bearing, sealing rubber pads are arranged at two ends of the linear bearing, a plurality of symmetrically distributed sealing bars 17 are fixedly connected at two ends of the inner wall of the collecting cylinder 8, a plurality of uniformly distributed ventilation openings 18 are arranged outside the upper surface of the piston 16, the sealing bars 17 are matched with the ventilation openings 18, and a first spring 19 is sleeved at one end, which is close to the sealing bars 17, outside the limiting slide bars 15, the inner walls of the two air channels are fixedly connected with electric push rods 20, and the output ends of the electric push rods 20 are matched with the sealing rings 14;
sliding grooves are formed in two sides of the collecting cylinder 8, an arc-shaped lock catch 21 is connected in the sliding grooves in a sliding mode, a second spring 22 is arranged at the bottom of the sliding groove, a pulling rod 23 is arranged at one end of the arc-shaped lock catch 21, the second spring 22 is sleeved on the outer side of the pulling rod 23, the pulling rod 23 penetrates through the sliding grooves and the outer wall of the collecting cylinder 8, and an air sac piece 24 is fixedly connected to the outer side of a through hole of the pulling rod 23 and the outer side of the collecting cylinder 8;
the implementation mode is specifically as follows: the collecting cylinder 8 is clamped between a lower clamping seat 6 and an upper clamping seat 7 through a clamping head 9 and a clamping groove in a matching manner, the collecting cylinder 8 is connected with two air channels through a sealing ring 14 in a sealing manner, when an electromagnetic valve 13 is closed, a miniature air pump 11 is started, air passes through a vent 18 and passes through the inside of the collecting cylinder 8, and is conveyed to a monitoring mechanism 4 for monitoring the air quality, when the air needs to be sampled, two electric push rods 20 are started simultaneously, the output end of each electric push rod 20 pushes two pistons 16 to slide on two groups of limiting slide rods 15, so that a sealing rod 17 closes the vent 18, an arc-shaped lock catch 21 slides in a sliding groove, and is clamped at the rear end of the piston 16 under the resilience force of a second spring 22 after the piston 16 is extruded and moved, an air bag sheet 24 seals the through hole to avoid air leakage, the collecting cylinder 8 is sealed to collect the air, the electromagnetic valve 13 is started simultaneously, so that the air is normally conveyed from an air vent pipe 12, can carry out incessant real-time supervision to the air, open the closing door, will gather the sample and take out, facilitate the use, this embodiment has specifically solved the monitoring air quality problem when can not satisfy the sample collection and store that exists among the prior art.
According to the outdoor air quality monitoring device with the sample collection and storage functions shown in fig. 1-9, the monitoring mechanism 4 includes a second box 25, the second box 25 is fixedly connected to the top of the mounting substrate 1, a third box 26 is fixedly connected to the top of the second box 25, a fourth box 27 is fixedly connected to the top of the third box 26, an air cover 28 is arranged at the top of the fourth box 27, a first air quality sensor 29 is arranged inside the third box 26, and a second air quality sensor 30 is arranged inside the fourth box 27;
a display screen 31 is arranged outside the second box body 25, barrier indicating lamps 32 are arranged on two sides of the display screen 31, a single chip microcomputer 33 is arranged inside the second box body 25, obliquely distributed dust collecting plates 34 are fixedly connected inside the third box body 26 and the fourth box body 27, dust collecting drawers 35 are arranged at the bottom ends of the two dust collecting plates 34, and the two dust collecting drawers 35 are respectively connected with the third box body 26 and the fourth box body 27 in a sliding manner;
the miniature air pump 11, the first air quality sensor 29, the second air quality sensor 30, the single chip microcomputer 33, the electric push rod 20, the barrier indicating lamp 32, the electromagnetic valve 13, the display screen 31, the brushless fan 10 and the heating assembly 39 are all electrically connected with the power module 2;
the input end of the single chip microcomputer 33 is provided with an A/D converter, the output end of the single chip microcomputer 33 is provided with a D/A converter, the first air quality sensor 29 and the second air quality sensor 30 are both electrically connected with the A/D converter, the electric push rod 20, the barrier indicating lamp 32 and the electromagnetic valve 13 are all electrically connected with the D/A converter, and the single chip microcomputer 33 is electrically connected with the display screen 31;
the type of the single chip microcomputer 33 is set as M68HC16, the types of the first air quality sensor 29 and the second air quality sensor 30 are both set as TGS2600, the micro air pump 11, the first air quality sensor 29, the second air quality sensor 30, the single chip microcomputer 33, the electric push rod 20, the barrier indicating lamp 32, the electromagnetic valve 13, the display screen 31, the brushless fan 10, the heating assembly 39 and the power module 2 are all existing products, and according to the prior art, circuit connection can be achieved and normal use can be achieved;
the implementation mode is specifically as follows: set up the rotatory guide air admission of brushless fan, stir simultaneously the air and make it evenly distributed, set up first air mass sensor 29 and second air mass sensor 30 in third box 26 and fourth box 27 respectively, the contrast detects the air quality behind normal outdoor air and the collection section of thick bamboo 8, convert detected signal into data signal and send to singlechip 33, singlechip 33 analysis data difference and with data show 31 real-time, when two data difference are greater than the setting value, singlechip 33 control pilot lamp 32 scintillation suggestion, be convenient for the rapid processing condition and carry out inside clearance, it is same, can improve the accuracy that data detected, this embodiment has specifically solved the big problem of detection data error that exists among the prior art.
According to the outdoor air quality monitoring device with the sample collection and storage functions shown in fig. 1, 2 and 8, the bottom end outside the first box 5 is fixedly connected with a first filter plate 36, the bottom of the air passing cover 28 is provided with a second filter plate 37, the first filter plate 36 is fixedly connected with the mounting substrate 1, the second filter plate 37 is matched with the inner wall of the fourth box 27, the cross-sectional shape of the air passing cover 28 is set to be T-shaped, the top end inside the fourth box 27 is provided with a connecting seat 38, a connecting rod is arranged between the connecting seat 38 and the fourth box 27, and the air passing cover 28 is in threaded connection with the connecting seat 38;
the input end of the miniature air pump 11 is matched with an air channel at the top end of the upper clamping seat 7, one side of the third box body 26 is provided with an air inlet, the output end of the miniature air pump 11 is matched with the air inlet, and the first air quality sensor 29 and the second air quality sensor 30 are both arranged at the top end of the dust collecting plate 34;
a heating component 39 is arranged in the first box body 5, the heating component 39 is set as a warm lamp, an exhaust hole is formed in one side of the third box body 26, a one-way valve 40 is arranged in the exhaust hole, normal exhaust is achieved, and the situation that the pressure in the third box body 26 is too high is avoided;
the bottom of the mounting substrate 1 is provided with supporting legs 41, and the supporting legs 41 are floor type triangular supports, so that the outdoor mounting and use are facilitated;
the implementation mode is specifically as follows: set up inside the timely first box 5 of heating element 39 heating, reduce the detection error that leads to because of the humidity change, improve and detect the precision, first filter 36 and second filter 37 filter impurity and interception insect at two sense terminal input ports respectively, and convenient the ash removal of dust collection board 34 and dust collection drawer 35, and install overall structure compactness, convenient to detach clears up, and the problem that the outdoor testing equipment that exists is not convenient for to clear up among the prior art has specifically been solved to this embodiment.
The working principle of the invention is as follows:
referring to the attached drawings 1-7 of the specification, a collection cylinder 8 is clamped between a lower clamping seat 6 and an upper clamping seat 7 in a matching mode through a clamping head 9 and a clamping groove, the collection cylinder 8 is connected with two air channels through a sealing ring 14 in a sealing mode, when an electromagnetic valve 13 is closed, a miniature air pump 11 is started, air passes through a vent 18, passes through the interior of the collection cylinder 8 and is conveyed to a monitoring mechanism 4 to monitor the air quality, when the air needs to be sampled, two electric push rods 20 are started simultaneously, the output ends of the electric push rods 20 push two pistons 16 to slide on two groups of limiting slide rods 15, a sealing rod 17 closes the vent 18, an arc-shaped lock catch 21 slides in a sliding groove and is clamped at the rear end of the piston 16 under the action of the resilience force of a second spring 22 after the piston 16 is extruded and moves, an air bag sheet 24 seals the through hole, the collection cylinder 8 seals and collects the air, and simultaneously the electromagnetic valve 13 is opened, the air is normally transmitted from the vent pipe 12, the air can be continuously monitored in real time, the closing door is opened, and the collected sample is taken out;
referring to the attached drawings 1-9 of the specification, a brushless fan rotates to guide air to enter, meanwhile, air is stirred to be uniformly distributed, a first air quality sensor 29 and a second air quality sensor 30 are respectively arranged in a third box body 26 and a fourth box body 27, the air quality of normal outdoor air and the air quality of the air passing through a collecting cylinder 8 are detected in a contrasting mode, detection signals are converted into data signals to be sent to a single chip microcomputer 33, the single chip microcomputer 33 analyzes data differences and displays the data on a display screen 31 in real time, and when the differences of the two data are larger than a set value, the single chip microcomputer 33 controls an obstacle indicating lamp 32 to flash for prompting;
referring to the description of the drawings, fig. 1, 2 and 8, the heating unit 39 heats the inside of the first box 5 at a proper time, the first filter plate 36 and the second filter plate 37 filter impurities and intercept insects at the input ports of the two detection terminals, respectively, and the dust collecting plate 34 and the dust collecting drawer 35 facilitate dust removal.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. The utility model provides an outdoor air quality monitoring device who possesses sample collection and store function, includes mounting substrate (1), its characterized in that: a placing groove is formed in the top of the mounting base plate (1), a power module (2) is fixedly connected in the placing groove, a sample collecting mechanism (3) is arranged on one side of the placing groove, and a monitoring mechanism (4) is arranged on the other side of the placing groove;
the sample collection mechanism (3) comprises a first box body (5), the bottom end inside the first box body (5) is fixedly connected with a lower clamping seat (6), the top end inside the first box body (5) is fixedly connected with an upper clamping seat (7), a collection cylinder (8) is arranged between the lower clamping seat (6) and the upper clamping seat (7), one sides of the lower clamping seat (6) and the upper clamping seat (7) close to the collection cylinder (8) are respectively provided with a clamping groove, two ends of the collection cylinder (8) are respectively provided with a clamping head (9), the two clamping grooves are respectively matched with the two clamping heads (9), a cavity is arranged inside the lower clamping seat (6), a brushless fan (10) is arranged in the cavity, air channels are respectively arranged inside the lower clamping seat (6) and the upper clamping seat (7), the air channels penetrate through the lower clamping seat (6), the upper clamping seat (7) and two ends of the first box body (5), the top of the first box body (5) is fixedly connected with a miniature air pump (11), a vent pipe (12) is arranged between the cavity and an air channel in the upper clamping seat (7), an electromagnetic valve (13) is arranged in one end of the vent pipe (12), and a closing door is hinged to the outer side of the first box body (5);
the collecting cylinder is characterized in that two ends of the collecting cylinder (8) are respectively provided with a limiting groove, a sealing ring (14) is sleeved on the outer side of the limiting groove, two ends of the collecting cylinder (8) are respectively in sealing connection with the lower clamping seat (6) and the upper clamping seat (7) through the sealing ring (14), two groups of symmetrically distributed limiting slide bars (15) are fixedly connected with two ends of the inner wall of the collecting cylinder (8), the number of the limiting slide bars (15) in each group is two, a piston (16) is arranged between the two limiting slide bars (15), a linear bearing is arranged at the joint of the piston (16) and the limiting slide bars (15), the piston (16) is in sliding connection with the limiting slide bars (15) through the linear bearing, sealing rubber pads are arranged at two ends of the linear bearing, a plurality of symmetrically distributed sealing bars (17) are fixedly connected with two ends of the inner wall of the collecting cylinder (8), and a plurality of uniformly distributed ventilation openings (18) are formed in the outer side of the upper surface of the piston (16), the sealing rod (17) is matched with the ventilation opening (18), one end, close to the sealing rod (17), of the outer side of the limiting slide rod (15) is sleeved with a first spring (19), the inner walls of the two air channels are fixedly connected with electric push rods (20), and the output ends of the electric push rods (20) are matched with the sealing ring (14);
gather a section of thick bamboo (8) both sides and all seted up the spout, sliding connection has arc hasp (21) in the spout, the spout bottom is equipped with second spring (22), arc hasp (21) one end is equipped with dead lever (23), and second spring (22) cover is established in the dead lever (23) outside, dead lever (23) run through the spout and gather a section of thick bamboo (8) outer wall, dead lever (23) and the through hole outside fixedly connected with gasbag piece (24) of gathering a section of thick bamboo (8).
2. The outdoor air quality monitoring device with the sample collection and storage functions as claimed in claim 1, wherein: monitoring mechanism (4) include second box (25), second box (25) fixed connection is at mounting substrate (1) top, second box (25) top fixedly connected with third box (26), third box (26) top fixedly connected with fourth box (27), fourth box (27) top is equipped with air cover (28), third box (26) inside is equipped with first air quality sensor (29), fourth box (27) inside is equipped with second air quality sensor (30).
3. The outdoor air quality monitoring device with the sample collection and storage functions as claimed in claim 2, wherein: second box (25) outside is equipped with display screen (31), display screen (31) both sides all are equipped with pilot lamp (32), second box (25) inside is equipped with singlechip (33), inside equal fixedly connected with slope distribution's of third box (26) and fourth box (27) collection dirt board (34), two collection dirt board (34) bottom all is equipped with album dirt drawer (35), two collection dirt drawer (35) respectively with third box (26) and fourth box (27) sliding connection.
4. The outdoor air quality monitoring device with the sample collection and storage functions as claimed in claim 2, wherein: first box (5) outside bottom fixedly connected with first filter (36), cross gas lid (28) bottom and be equipped with second filter (37), first filter (36) and mounting substrate (1) fixed connection, second filter (37) and fourth box (27) inner wall phase-match, the cross sectional shape of crossing gas lid (28) sets up to T shape, fourth box (27) top inside is equipped with connecting seat (38), be equipped with the connecting rod between connecting seat (38) and fourth box (27), cross gas lid (28) and connecting seat (38) threaded connection.
5. The outdoor air quality monitoring device with the sample collection and storage functions as claimed in claim 3, wherein: the air pump is characterized in that the input end of the miniature air pump (11) is matched with an air channel at the top end of the upper clamping seat (7), an air inlet is formed in one side of the third box body (26), the output end of the miniature air pump (11) is matched with the air inlet, and the first air quality sensor (29) and the second air quality sensor (30) are arranged at the top end of the dust collecting plate (34).
6. The outdoor air quality monitoring device with the sample collection and storage functions as claimed in claim 5, wherein: the heating assembly (39) is arranged inside the first box body (5), the heating assembly (39) is arranged to be a warm lamp, an exhaust hole is formed in one side of the third box body (26), and a one-way valve (40) is arranged in the exhaust hole.
7. The outdoor air quality monitoring device with the sample collection and storage functions as claimed in claim 1, wherein: the bottom of the mounting base plate (1) is provided with supporting legs (41), and the supporting legs (41) are floor type triangular supports.
8. The outdoor air quality monitoring device with the sample collection and storage functions as claimed in claim 6, wherein: the miniature air pump (11), the first air quality sensor (29), the second air quality sensor (30), the single chip microcomputer (33), the electric push rod (20), the obstacle indicating lamp (32), the electromagnetic valve (13), the display screen (31), the brushless fan (10) and the heating assembly (39) are all electrically connected with the power module (2).
9. The outdoor air quality monitoring device with the sample collection and storage functions as claimed in claim 3, wherein: the input of singlechip (33) is equipped with the AD converter, the output of singlechip (33) is equipped with the DA converter, first air quality sensor (29) and second air quality sensor (30) all with AD converter electric connection, electric putter (20), show barrier lamp (32) and solenoid valve (13) all with DA converter electric connection, singlechip (33) and display screen (31) electric connection.
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| CN201910885317.0A CN110567764B (en) | 2019-09-19 | 2019-09-19 | Outdoor air quality monitoring device who possesses sample collection and stores function |
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| CN110567764B true CN110567764B (en) | 2022-03-08 |
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| CN113791175B (en) * | 2021-07-28 | 2023-11-21 | 武汉神动汽车电子电器股份有限公司 | Automatic detection device for automobile air quality sensor |
| CN113777239A (en) * | 2021-09-13 | 2021-12-10 | 深圳市瑞和铭科技有限公司 | Convection type environment-friendly air detection device |
| CN115656420B (en) * | 2022-08-15 | 2024-04-16 | 北京华创维想科技开发有限责任公司 | Air quality monitoring instrument |
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