CN219511904U - Ambient air particulate matter sampler - Google Patents
Ambient air particulate matter sampler Download PDFInfo
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- CN219511904U CN219511904U CN202320427398.1U CN202320427398U CN219511904U CN 219511904 U CN219511904 U CN 219511904U CN 202320427398 U CN202320427398 U CN 202320427398U CN 219511904 U CN219511904 U CN 219511904U
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- air
- filter membrane
- sampler
- fixedly connected
- particulate matter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model relates to the technical field of air detection and discloses an ambient air particulate matter sampler, which comprises a sampler shell, wherein a storage battery is arranged in the sampler shell, a motor is arranged at the rear side of the storage battery, a connecting wire is electrically connected between the rear surface of the storage battery and the front surface of the motor, the output end of the motor is fixedly connected with a transmission shaft, the right end of the transmission shaft is provided with an air pump, the right end of the transmission shaft extends into the air pump to drive the air pump to work, an air flow meter is connected with the upper side air extraction pipe of the air pump in a threaded manner, an air inlet pipe is arranged on the upper surface of the sampler shell, the lower end of the air inlet pipe penetrates into the sampler shell and is in threaded connection with the upper end of the air flow meter, the total particulate content in air and the content of respiratory particulates and non-respiratory particulates can be tested simultaneously, multiple tests are required without the need of respective contents of multiple particulates, and the working efficiency of the sampler is improved.
Description
Technical Field
The utility model relates to the technical field of air detection, in particular to an ambient air particulate matter sampler.
Background
The particles in the atmosphere are the general name of all suspended particles in the air, the particles from nano-scale to micron-scale are generated and changed along with wind, so that the particles not only influence weather and change, but also have important influence on the health of people, the particles are also called dust, the particles are classified into respiratory dust and non-respiratory dust according to the harm degree to human bodies, the aerodynamic diameter of the respiratory dust is below 7.07 microns, the collection efficiency of the dust with the aerodynamic diameter of 5 microns is 50%, and the dust is respiratory dust. Respiratory dust can be deposited on alveoli, and the respiratory dust is harmful to human bodies.
The ambient air particulate matter collector is used for sampling particulate matters in the air, the particulate matter content in the sheet area is tested, most of the common samplers in the market only can be used for testing the total particulate matter content in the air, or the filter membrane is replaced, the content of one particulate matter is measured at one time, and the sampling measurement cannot be carried out on various particulate matters at the same time, so that the sampling measurement needs to be carried out for a plurality of times when the particulate matters with different diameters are required to be tested, the sampling measurement process is slower, and the efficiency is influenced.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides the ambient air particulate matter sampler which has the function of simultaneously carrying out classified sampling test on particulate matters with different diameters in the air, so that a plurality of results can be obtained by one sampling test, multiple sampling tests are not needed, and the working efficiency is greatly improved.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an ambient air particulate matter sample thief, includes the sample thief casing, the inside of sample thief casing is provided with the battery, the rear side of battery is provided with the motor, electric connection has the connecting wire between the front surface of rear surface and the motor of battery, the output fixedly connected with transmission shaft of motor, the right-hand member of transmission shaft is provided with the aspiration pump, the right-hand member of transmission shaft extends into the inside aspiration pump work that drives of aspiration pump, the upside aspiration tube threaded connection of aspiration pump has air flowmeter, the upper surface of sample thief casing is provided with the intake pipe, the lower extreme of intake pipe runs through into the inside of sample thief casing to with air flowmeter's upper end threaded connection, the upper end threaded connection of intake pipe has the sampling head.
Preferably, the sampling head comprises a first filter membrane clamp, a first filter membrane is arranged in the first filter membrane clamp, a connecting pipe is connected to the upper side of the first filter membrane clamp in a threaded manner, a second filter membrane clamp is connected to the upper side of the connecting pipe in a threaded manner, and a second filter membrane is arranged in the second filter membrane clamp.
Preferably, the upper side threaded connection of filter membrane clamp two has the protection casing, fixedly connected with bracing piece on the inner wall of connecting pipe, and the left end rotation of bracing piece is connected with the rotor, fixedly connected with blade on the surface of rotor.
Preferably, the left surface fixedly connected with lug of rotating the head, the lug sets up in the left edge position of rotating the head, fixedly connected with connecting rod on the inner wall of connecting pipe, the right-hand member cover of connecting rod is equipped with the ejector pin.
Preferably, the lower side fixedly connected with annular piece of ejector pin, annular piece cover is established on the surface of lug, the upper end fixedly connected with spring of ejector pin, the upper end fixedly connected with rubber head of spring.
(III) beneficial effects
Compared with the prior art, the utility model provides the ambient air particulate matter sampler, which has the following beneficial effects:
(1) This ambient air particulate matter sample thief through setting up the sampling head as a filter membrane and press from both sides an upside threaded connection connecting pipe, connecting pipe upside threaded connection filter membrane presss from both sides two, and filter membrane presss from both sides one and filter membrane presss from both sides two inside and is provided with filter membrane one and filter membrane two respectively, can make simultaneously test out air particulate matter total content, non-respiratory particulate matter content and respiratory particulate matter content when sampling test, has avoided carrying out the condition of sampling test many times, has improved work efficiency.
(2) This ambient air particulate matter sample thief through setting up the rotating head in the connecting pipe, rotating head external surface fixed sets up the blade, rotating head left side fixed setting lug, the annular piece is established to the lug surface cover, the fixed mode that sets up the ejector pin in annular piece upside can make the air current that produces when the sample thief work drive the blade rotation, the blade drives the lug and rotates, the lug drives annular piece and ejector pin up-and-down motion, the ejector pin can beat the filter membrane clamp two of upside, vibrations make filter membrane two can not cause the small particle thing to pass through filter membrane two because of particulate matter blocks up the hole, cause the circumstances that great deviation appears in the result of sampling test to appear, the accuracy of sample thief when sampling test has been improved greatly, make the final result can be more rigorous.
Drawings
FIG. 1 is a schematic view of an ambient air particulate matter sampler according to the present utility model.
Fig. 2 is a schematic diagram of the internal structure of the sampler housing according to the present utility model.
FIG. 3 is a schematic diagram of a sampling head according to the present utility model.
Fig. 4 is a schematic view of the internal structure of the connecting pipe according to the present utility model.
In the figure: 1. a sampler housing; 2. a storage battery; 21. a connecting wire; 3. a motor; 31. a transmission shaft; 4. an air extracting pump; 5. an air flow meter; 6. an air inlet pipe; 7. a sampling head; 71. a first filter membrane is clamped; 72. a first filter membrane; 73. a connecting pipe; 74. a second filter membrane clamp; 75. a second filter membrane; 76. a protective cover; 8. a support rod; 81. a rotating head; 82. a blade; 83. a bump; 9. a connecting rod; 91. a push rod; 92. an annular block; 93. a spring; 94. a rubber head.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 4, the present utility model provides a new technical solution: an ambient air particulate matter sampler comprises a sampler shell 1, a storage battery 2 is arranged in the sampler shell 1, a motor 3 is arranged at the rear side of the storage battery 2, a connecting wire 21 is electrically connected between the rear surface of the storage battery 2 and the front surface of the motor 3, a transmission shaft 31 is fixedly connected with the output end of the motor 3, an air pump 4 is arranged at the right end of the transmission shaft 31, the right end of the transmission shaft 31 extends into the air pump 4 to drive the air pump 4 to work, an air flowmeter 5 is connected with an air suction pipe at the upper side of the air pump 4 in a threaded manner, an air inlet pipe 6 is arranged on the upper surface of the sampler shell 1, the lower end of the air inlet pipe 6 penetrates into the sampler shell 1 and is in threaded manner with the upper end of the air flowmeter 5, a sampling head 7 is connected with the upper end of the air inlet pipe 6 in a threaded manner, the sampling head 7 comprises a filter membrane clamp 71, a filter membrane clamp 72 is arranged in the filter membrane clamp 71, the upper side of the first filter membrane clamp 71 is connected with a connecting pipe 73 in a threaded manner, the upper side of the connecting pipe 73 is connected with a second filter membrane clamp 74 in a threaded manner, a second filter membrane 75 is arranged in the second filter membrane clamp 74, the second filter membrane 75 is used for filtering out non-respiratory dust with larger particles in the air, the first filter membrane 72 is used for filtering out respiratory dust with smaller particles in the air, therefore, the mesh number of the second filter membrane 75 is smaller than that of the first filter membrane 72, when the first filter membrane is started to work, the sampling head 7 is firstly cleaned and disinfected so as to avoid test deviation, after parts on the sampling head 7 are cleaned and disinfected, the sampling head 7 is arranged at the upper end of the air inlet pipe 6, then the sampler is started through a control switch on the surface of the sampler shell 1, after the sampler is started, the motor 3 starts to work, power is transmitted from the output end to drive the transmission shaft 31 to synchronously rotate, and the device inside the suction pump 4 is synchronously rotated, the air pump 4 starts to pump air, external air starts to be sucked, the air firstly passes through the sampling head 7, the sampling head 7 collects particles in the air, the filtered air enters the air flowmeter 5 through the sampling head 7, the air flowmeter 5 detects the air inflow so as to adjust, in this way, the air particulate matters around the equipment can be detected, the air flowmeter 5 displays the air inflow on the display interface of the sampler shell 1 in real time, a worker can obtain a test result according to the air inflow and the air pumping time, two filter membrane clamps and filter membranes are placed up and down, the mesh size represents the number of filter holes of the filter membranes, the larger the mesh size is, the more the filter holes are, the smaller the filtered particles are, the filter membranes with small mesh size are placed on the upper side, the filter membranes with large mesh size are placed on the lower side, the total particle content in the air and the content of respiratory particles and the content of non-respiratory particles can be tested at the same time, multiple tests are required without the respective contents of multiple particles, and the working efficiency of the sampler is improved.
The upper side of the second filter membrane clamp 74 is connected with a protective cover 76 through threads, the inner wall of the connecting pipe 73 is fixedly connected with a supporting rod 8, the left end of the supporting rod 8 is rotationally connected with a rotating head 81, the outer surface of the rotating head 81 is fixedly connected with a blade 82, the left surface of the rotating head 81 is fixedly connected with a bump 83, the bump 83 is arranged at the left edge position of the rotating head 81, the inner wall of the connecting pipe 73 is fixedly connected with a connecting rod 9, the right end of the connecting rod 9 is sleeved with a push rod 91, the lower side of the push rod 91 is fixedly connected with an annular block 92, the annular block 92 is sleeved on the outer surface of the bump 83, the upper end of the push rod 91 is fixedly connected with a spring 93, the upper end of the spring 93 is fixedly connected with a rubber head 94, when the sampler starts working, the air pump 4 simultaneously performs air suction working, the air flow starts to form air flow, and the blade 82 rotates, the blade 82 drives the rotating head 81 to synchronously rotate, the rotating head 81 drives the lug 83 to circularly move by taking the center of the rotating head 81 as the center, the lug 83 drives the annular block 92 to vertically move, the annular block 92 drives the ejector rod 91 to synchronously move up and down, the ejector rod 91 drives the spring 93 to synchronously move up and down, the spring 93 drives the rubber head 94 to synchronously move up and down, the rubber head 94 impacts the second filter membrane clamp 74, the impact of the rubber head 94 can prevent the holes on the second filter membrane 75 from being blocked, so that the respiratory dust can smoothly pass through the second filter membrane 75, in this way, the holes on the second filter membrane 75 can not be blocked by the dust with larger particles, the small particle dust which passes through the second filter membrane 75 is blocked on the second filter membrane 75, the measuring result can be more accurate, and the occurrence of measurement errors caused by filter membrane blockage is avoided.
Working principle: when the air pump starts to work, firstly, the sampling head 7 is cleaned and disinfected to avoid test deviation, after parts on the sampling head 7 are cleaned and disinfected, the sampling head 7 is arranged at the upper end of the air inlet pipe 6, then, the sampler is started through a control switch on the surface of the sampler shell 1, after the sampler is started, the motor 3 starts to work, power is transmitted from the output end to drive the transmission shaft 31 to synchronously rotate, the transmission shaft 31 drives devices inside the air pump 4 to synchronously rotate, the air pump 4 starts to pump air, external air starts to be inhaled, the air firstly passes through the sampling head 7, the sampling head 7 collects particles in the air, the filtered air enters the air flowmeter 5 through the sampling head 7, the air flowmeter 5 detects the air inflow to adjust, through the mode, the peripheral air particulate matters of the equipment can be detected, the air flow meter 5 displays the air inflow on the display interface of the sampler shell 1 in real time, a worker can obtain a test result according to the air inflow and the air suction time, the two filter membrane clamps and the filter membranes are placed up and down, the mesh size represents the number of filter holes of the filter membranes, the larger the mesh size is, the more the filter holes are, the smaller the filtered particles are, the filter membranes with small mesh size are placed on the upper side, the filter membranes with large mesh size are placed on the lower side, the total particle content in the air and the contents of respiratory particles and non-respiratory particles can be tested at the same time, multiple tests are required without the need of respective contents of various particles, and the working efficiency of the sampler is improved.
When the sampler starts to work, the air pump 4 simultaneously pumps air, air starts to form air flow, the air flow drives the blades 82 to rotate, the blades 82 drive the rotating heads 81 to synchronously rotate, the rotating heads 81 drive the bumps 83 to circularly move with the center of the rotating heads 81 as the circle center, the bumps 83 drive the annular blocks 92 to vertically move, the annular blocks 92 drive the ejector rods 91 to synchronously move up and down, the ejector rods 91 drive the springs 93 to synchronously move up and down, the springs 93 drive the rubber heads 94 to synchronously move up and down, the rubber heads 94 impact the second filter membrane clamp 74, the impact of the rubber heads 94 can enable holes on the second filter membrane 75 not to be blocked, so that respirable dust can smoothly pass through the second filter membrane 75, in this way, the holes on the second filter membrane 75 can not be blocked by dust with larger particles, small particle dust which passes through the second filter membrane 75 can be blocked on the second filter membrane 75, the measurement result can be more accurate, and measurement errors caused by blocking the second filter membrane can be avoided.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An ambient air particulate matter sampler comprising a sampler housing (1), characterized in that: the inside of sampler casing (1) is provided with battery (2), the rear side of battery (2) is provided with motor (3), electric connection has connecting wire (21) between the rear surface of battery (2) and the front surface of motor (3), the output fixedly connected with transmission shaft (31) of motor (3), the right-hand member of transmission shaft (31) is provided with aspiration pump (4), the right-hand member of transmission shaft (31) extends into aspiration pump (4) inside and drives aspiration pump (4) work, the upside aspiration tube threaded connection of aspiration pump (4) has air flowmeter (5), the upper surface of sampler casing (1) is provided with intake pipe (6), the lower extreme of intake pipe (6) runs through the inside of into sampler casing (1) to with the upper end threaded connection of air flowmeter (5), the upper end threaded connection of intake pipe (6) has sampling head (7).
2. An ambient air particulate matter sampler as claimed in claim 1, wherein: the sampling head (7) comprises a first filter membrane clamp (71), a first filter membrane (72) is arranged in the first filter membrane clamp (71), a connecting pipe (73) is connected to the upper side of the first filter membrane clamp (71) in a threaded mode, a second filter membrane clamp (74) is connected to the upper side of the connecting pipe (73) in a threaded mode, and a second filter membrane (75) is arranged in the second filter membrane clamp (74).
3. An ambient air particulate matter sampler as claimed in claim 2, wherein: the upper side threaded connection of filter membrane clamp two (74) has protection casing (76), fixedly connected with bracing piece (8) on the inner wall of connecting pipe (73), and the left end rotation of bracing piece (8) is connected with rotation head (81), fixedly connected with blade (82) on the surface of rotation head (81).
4. An ambient air particulate matter sampler according to claim 3, wherein: the left surface of the rotating head (81) is fixedly connected with a lug (83), the lug (83) is arranged at the left edge position of the rotating head (81), the inner wall of the connecting pipe (73) is fixedly connected with a connecting rod (9), and the right end of the connecting rod (9) is sleeved with a push rod (91).
5. An ambient air particulate matter sampler as claimed in claim 4, wherein: the lower side fixedly connected with annular piece (92) of ejector pin (91), annular piece (92) cover is established on the surface of lug (83), and the upper end fixedly connected with spring (93) of ejector pin (91), the upper end fixedly connected with rubber head (94) of spring (93).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320427398.1U CN219511904U (en) | 2023-03-08 | 2023-03-08 | Ambient air particulate matter sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320427398.1U CN219511904U (en) | 2023-03-08 | 2023-03-08 | Ambient air particulate matter sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219511904U true CN219511904U (en) | 2023-08-11 |
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ID=87530751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320427398.1U Active CN219511904U (en) | 2023-03-08 | 2023-03-08 | Ambient air particulate matter sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219511904U (en) |
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2023
- 2023-03-08 CN CN202320427398.1U patent/CN219511904U/en active Active
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