CN111982769A - Rotatory detection device in turn of beta-ray method atmospheric particulates - Google Patents
Rotatory detection device in turn of beta-ray method atmospheric particulates Download PDFInfo
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- CN111982769A CN111982769A CN202010891054.7A CN202010891054A CN111982769A CN 111982769 A CN111982769 A CN 111982769A CN 202010891054 A CN202010891054 A CN 202010891054A CN 111982769 A CN111982769 A CN 111982769A
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
- G01N15/0618—Investigating concentration of particle suspensions by collecting particles on a support of the filter type
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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 invention discloses a beta-ray method atmospheric particulate rotation alternate detection device which comprises a detection device main body, a beta-ray generation device and a beta-ray receiving device, wherein a base is arranged in the detection device main body, a rotary rod extending to the upper side of the detection device main body is arranged in the middle of the base, four triangular columns are arranged at the upper end of the rotary rod in an equiangular mode, a rotary disc is arranged at the bottom of the rotary rod, four filter plate clamping openings are arranged at the equiangular mode on the rotary disc, and fixing bolts are arranged on the lower side surface of the rotary disc and the filter plate clamping openings in a riveting mode. The invention has the beneficial effects that: the device is through the filtration mode of admitting air in turn to particulate matter detects in turn in the atmosphere in the static mode of filter plate, has avoided causing the atmospheric particulates to detect data inaccurate because of reasons such as the filter plate vibration or the filterable directionality of adsorption is relatively poor, has improved the precision to the atmospheric particulates detection.
Description
Technical Field
The invention relates to the technical field of atmospheric detection, in particular to a beta-ray method atmospheric particulate rotation alternate detection device.
Background
In present atmospheric particulates detection's application, particulate matter detection's mode in the atmosphere is used comparatively extensively through the ray, usable ray absorption principle carries out quantitative analysis to PM10 and PM2.5, has important effect to the prevention and cure of atmospheric pollution, the ray detection method that uses usually now is mostly beta-ray method paper tape filtration detection, because absorb the analysis in the continuous transportation process of paper tape, lead to in continuous circulation testing process, because during paper tape vibration and transport, get into the sampling room by the air inlet and redeposit or adsorb the particulate matter on the paper tape, can be lower than particulate matter concentration data etc. that contain in the atmosphere under the actual conditions, cause the inaccurate condition of detected data, the accuracy of data has been influenced to a certain extent.
Disclosure of Invention
The invention aims to provide a beta-ray method atmospheric particulate rotation alternate detection device, which aims to overcome the defects in the prior art provided by the background art.
The invention discloses a beta-ray method atmospheric particulate rotation alternate detection device, which comprises a detection device main body, a beta-ray generation device and a beta-ray receiving device, wherein a base is arranged in the detection device main body, a rotary rod extending to the upper side of the detection device main body is arranged in the middle of the base, four triangular columns are arranged at the upper end of the rotary rod in an equiangular mode, a rotary disc is arranged at the bottom of the rotary rod, four filter plate clamping openings are arranged at the upper angle of the rotary disc in an equiangular mode, a fixed bolt is riveted with a filter plate clamping opening on the lower side surface of the rotary disc, an arc-shaped supporting arm I is connected to the fixed bolt, a sleeve is sleeved on the fixed bolt, a supporting arm II symmetrical to the supporting arm I is arranged on the sleeve, a pair of driving mechanisms for driving the rotary disc is symmetrically, a beta ray detection mechanism for detecting particles is arranged on the left side of the rotating rod, and a supporting cylinder is arranged on the right side of the rotating rod;
the driving mechanism comprises a driven wheel, an arc-shaped rail I and an arc-shaped rail II, wherein the driven wheel is in contact with the outer ring of the rotating disc, a fixed shaft I is arranged on the lower side of the driven wheel, a connecting ring is sleeved on the fixed shaft I, a connecting arm I is hinged to the connecting ring, a connecting shaft is arranged in the middle of the connecting arm I, a connecting arm II is hinged to the lower end of the connecting shaft, and an included angle formed between the connecting arm I and the connecting arm II is;
the sliding block comprises an arc-shaped rail I and an arc-shaped rail II, a sliding chute I is arranged in the arc-shaped rail I and the arc-shaped rail II, a sliding block is arranged in the sliding chute I, an extending part I is arranged on the right side of the sliding block, a plurality of clamping teeth are arranged on the left side of the sliding block, a sliding chute II is arranged on the left side of the sliding chute I, a fixed shaft II is arranged between the sliding chute I and the sliding chute II, a reed is connected to the fixed shaft II, a sliding card clamped with the clamping teeth is arranged in the sliding chute II and comprises a sliding card fixed plate and a clamping card, a fixed shaft III is arranged on the right side of the sliding card fixed plate, a clamping card is arranged on the right;
i rear end of arc rail and II front ends of arc rail are provided with the stationary blade, the stationary blade middle part is run through and is provided with the spring axle, the epaxial cover of spring is equipped with spring II, the reed end extends to stationary blade one side, and the reed end is provided with triangle-shaped extension II, when the axial outside of spring removed, can extrude extension II gradually, makes the reed to extrude one side deformation.
Preferably, the mechanism of admitting air includes the intake pipe, is used for laminating the rubber seat and the air extractor of rolling disc, the rubber seat upside is provided with and extends in the intake pipe of detection device main part upside, the intake pipe upper end is provided with sealed gum cover, sealed gum cover front side is provided with bayonet socket II, II upsides of bayonet socket are provided with support I, sealed gum cover inboard is provided with the air inlet, be provided with filter plate I that is used for filtering atmospheric particulates in the air inlet, the connection of I front side of filter plate is provided with the fixing clip, and the fixing clip goes up and down to block in bayonet socket II, the fixing clip front side is provided with the connecting plate, the connecting plate upside is provided with the spring III of being connected with support I, rubber seat downside is provided with and is used for carrying.
Preferably, the beta ray detection mechanism comprises a beta ray generating device and a beta ray receiving device, a support II is connected to the left of the base, the beta ray generating device is fixedly arranged on the support II, the beta ray receiving device fixed on the base is arranged on the lower side of the beta ray generating device, and the rotating disc is located between the beta ray generating device and the beta ray receiving device.
Preferably, be provided with a plurality of filter plate II in the support section of thick bamboo, filter plate II can correspond with II positions of bayonet socket and fall into bayonet socket II in, and II thicknesses of filter plate are the same with the rolling disc thickness.
Preferably, the triangular prism is located the connecting plate position department, and when the rotary rod drove the triangular prism and rotates, the triangular prism prizes the connecting plate to the upside.
Preferably, I rear end of linking arm is connected with the slip joint of arc rail I is articulated, II rear ends of linking arm are connected with the slip joint of arc rail II is articulated, just arc rail I sets up with II subtend settings of arc rail.
Preferably, the extension part I of the arc-shaped rail I can be contacted with the sleeve, and the extension part I of the arc-shaped rail II can be contacted with the fixing bolt.
The invention has the beneficial effects that:
1. the triangular prism is located at the position of the connecting plate, when the rotating rod drives the triangular prism to rotate, the triangular prism prizes the connecting plate to the upper side, the filter plate I and the fixing clamp slide to the upper side along the bayonet II to rise, and atmospheric gas enters the air inlet pipe.
2. Through being provided with a plurality of filter plate II in the support cylinder, filter plate II can correspond with II positions of bayonet socket and fall into bayonet socket II, and II thicknesses of filter plate are the same with rolling disc thickness, when making the filter plate block mouth of rolling disc rotate to support cylinder below, make filter plate II fall into in the filter plate block mouth.
3. Through I and II subtend settings of arc rail to and I rear end of linking arm and the articulated connection of the slide card of arc rail I, II rear ends of linking arm are connected with the articulated connection of slide card of arc rail II, make when driving the go-between to carry out the circular motion from the driving wheel, linking arm I carries out the two-way motion with the slider that II difference blocks of linking arm drove arc rail I and arc rail II.
4. The slider through arc rail I and arc rail II carries out two-way motion and extension I of arc rail I can contact with the sleeve pipe, extension I of arc rail II can contact with the gim peg, makes the slider of arc rail I and arc rail II contact friction sleeve pipe and gim peg respectively at the in-process that carries out two-way motion, makes support arm I and II outside upsets of support arm, and II laterals of filter plate that have atmospheric particulates drop.
5. Set up the symmetry through the rotary rod front side and have a pair of actuating mechanism who is used for driving the rolling disc, make support arm I and support arm II that overturn to the outside fall in the filter plate II downside that have atmospheric particulates, reverse contact friction sleeve pipe and gim peg make support arm I and support arm II reset.
6. Extend to stationary blade one side through the reed end, and the reed end is provided with triangle-shaped extension II, when the spring axial outside removed, can extrude extension II gradually, make the reed to extrusion one side deformation, extrude card to slide card fixed plate one side through bayonet socket I, make the card short-lived relieve with the block of block tooth, receive the elastic support of spring II simultaneously, make the slider receive to promote and restore fast.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the internal structure of the present invention.
Fig. 3 is a schematic view of the structure of the sealing glove of the present invention.
FIG. 4 is a schematic bottom view of the rotatable plate of the present invention.
FIG. 5 is a schematic top view of the rotary plate of the present invention.
Fig. 6 is a schematic structural diagram of the driving mechanism of the present invention.
Fig. 7 is a schematic view of the structure of the driven wheel of the present invention.
FIG. 8 is a schematic view of a slide card structure according to the present invention.
Fig. 9 is a schematic structural diagram of an arc rail i of the invention.
FIG. 10 is a schematic view of the fastening sheet of the present invention.
Fig. 11 is a schematic plane structure diagram of an arc rail I of the invention.
Illustration of the drawings: 1. the detection device comprises a detection device body, 2, a base, 3, a rotating rod, 4, a triangular column, 5, a rotating disk, 6, a filter plate clamping opening, 7, a fixing bolt, 8, a support arm I, 9, a sleeve, 10, a support arm II, 11, a driving mechanism, 12, an air inlet mechanism, 13, a beta ray detection mechanism, 14, a support barrel, 15, a driven wheel, 16, an arc rail I, 17, an arc rail II, 18, a fixing shaft I, 19, a connecting ring, 20, a connecting arm I, 21, a connecting shaft, 22, a connecting arm II, 23, a sliding chute I, 24, a sliding block, 25, an extension part I, 26, clamping teeth, 27, a sliding chute II, 28, a fixing shaft II, 29, a reed, 30, a sliding card, 31, a sliding card fixing plate, 32, a clamping card, 33, a fixing shaft III, 34, a spring I, 35, a bayonet I, 36, a fixing plate, 37, a spring shaft, a spring 38, a spring, 41. the device comprises a rubber seat, 42, an air extractor, 43, a sealing rubber sleeve, 44, bayonets II, 45, supports I, 46, an air inlet, 47, filter plates I, 48, a fixing clamp, 49, a connecting plate, 50, springs III, 51, a beta ray generating device, 52, a beta ray receiving device, 53, supports II, 54 and a filter plate II.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
A beta-ray method atmospheric particulate rotation alternate detection device comprises a detection device main body 1, a beta-ray generation device 51 and a beta-ray receiving device 52, wherein a base 2 is arranged in the detection device main body 1, a rotary rod 3 extending to the upper side of the detection device main body 1 is arranged in the middle of the base 2, four triangular columns 4 are arranged at the upper end of the rotary rod 3 in an equiangular mode, the triangular columns 4 are located at the position of a connecting plate 49, when the rotary rod 3 drives the triangular columns 4 to rotate, the triangular columns 4 pry the connecting plate 49 upwards to enable filter plates I47 and fixing clips 48 to slide upwards along bayonets II 44 to enable atmospheric gas to enter an air inlet pipe 40, a rotary disc 5 is arranged at the bottom of the rotary rod 3, four filter plate clamping ports 6 are arranged at the upper equal angles of the rotary disc 5, fixing bolts 7 are riveted with the filter plate clamping ports 6 on the lower side face of the rotary disc, the fixing bolt 7 is sleeved with a sleeve 9, a support arm II 10 which is symmetrical to the support arm I8 is arranged on the sleeve 9, a pair of driving mechanisms 11 for driving the rotating disc 5 is symmetrically arranged on the front side of the rotating rod 3, and the support arm I8 and the support arm II 10 which turn outwards are in reverse contact with the friction sleeve 9 and the fixing bolt 7 after the filter plate II 54 with the atmospheric particulate matter falls downwards, so that the support arm I8 and the support arm II 10 are reset;
the rear side of the rotating rod 3 is provided with an air inlet mechanism 12, the air inlet mechanism 12 comprises an air inlet pipe 40, a rubber seat 41 and an air extractor 42 which are used for being attached to the rotating disc 5, the upper side of the rubber seat 41 is provided with an air inlet pipe 40 extending to the upper side of the detection device main body 1, the upper end of the air inlet pipe 40 is provided with a sealing rubber sleeve 43, the front side of the sealing rubber sleeve 43 is provided with a bayonet II 44, the upper side of the bayonet II 44 is provided with a support I45, the inner side of the sealing rubber sleeve 43 is provided with an air inlet 46, a filter plate I47 used for filtering atmospheric particulates is arranged in the air inlet 46, the front side of the filter plate I47 is connected with a fixing clamp 48, the fixing clamp 48 is lifted and clamped in the bayonet II 44, the front side of the fixing clamp 48 is provided with a connecting;
a beta ray detection mechanism 13 for detecting particles is arranged on the left side of the rotating rod 3, the beta ray detection mechanism 13 comprises a beta ray generating device 51 and a beta ray receiving device 52, the left part of the base 2 is connected with a bracket II 53, the bracket II 53 is fixedly provided with the beta ray generating device 51, the lower side of the beta ray generating device 51 is provided with the beta ray receiving device 52 fixed on the base 2, and the rotating disc 5 is positioned between the beta ray generating device 51 and the beta ray receiving device 52;
a support cylinder 14 is arranged on the right side of the rotary rod 3, a plurality of filter plates II 54 are arranged in the support cylinder 14, the filter plates II 54 can correspond to the positions of the bayonets II 44 and fall into the bayonets II 44, the thickness of the filter plates II 54 is the same as that of the rotary disc 5, and when the filter plate clamping port 6 of the rotary disc 5 rotates to the position below the support cylinder 14, the filter plates II 54 fall into the filter plate clamping port 6;
the driving mechanism 11 comprises a driven wheel 15, an arc-shaped rail I16 and an arc-shaped rail II 17 which are contacted with the outer ring of the rotating disc 5, a fixed shaft I18 is arranged at the lower side of the driven wheel 15, a connecting ring 19 is sleeved on the fixed shaft I18, a connecting arm I20 is hinged on the connecting ring 19, the rear end of the connecting arm I20 is hinged with a sliding card 30 of the arc-shaped rail I16, the rear end of a connecting arm II 22 is hinged with the sliding card 30 of the arc-shaped rail II 17, the arc-shaped rail I16 and the arc-shaped rail II 17 are oppositely arranged, when the driven wheel 15 drives the connecting ring 19 to do circular motion, the connecting arm I20 and the connecting arm II 22 are respectively clamped and drive a sliding block 24 of the arc-shaped rail I16 and the arc-shaped rail II 17 to do bidirectional motion, a connecting shaft 21 is arranged in the middle of the connecting arm I20, the lower end of the, the extension part I25 of the arc-shaped rail II 17 can be in contact with the fixing bolt 7, so that the slide blocks 24 of the arc-shaped rail I16 and the arc-shaped rail II 17 are respectively in contact with the friction sleeve 9 and the fixing bolt 7 in the process of bidirectional movement, the support arm I8 and the support arm II 10 are turned over outwards, and the filter plate II 54 with atmospheric particulates falls downwards;
a sliding groove I23 is arranged in each of the arc-shaped rails I16 and the arc-shaped rails II 17, a sliding block 24 is arranged in each sliding groove I23, an extending part I25 is arranged on the right side of each sliding block 24, a plurality of clamping teeth 26 are arranged on the left side of each sliding block 24, a sliding groove II 27 is arranged on the left side of each sliding groove I23, a fixing shaft II 28 is arranged between each sliding groove I23 and each sliding groove II 27, a reed 29 is connected onto each fixing shaft II 28, a sliding card 30 clamped with the clamping teeth 26 is arranged in each sliding groove II 27, each sliding card 30 comprises a sliding card fixing plate 31 and a clamping sheet 32, a fixing shaft III 33 is arranged on the right side of each sliding card fixing plate 31, a clamping sheet 32 is arranged on the right side of each fixing shaft III 33;
the rear end of the I16 arc-shaped rail and the front end of the II 17 arc-shaped rail are provided with fixing pieces 36, the middle part of each fixing piece 36 is provided with a spring shaft 37 in a penetrating mode, a spring II 38 is sleeved on each spring shaft 37, the tail end of each reed 29 extends to one side of each fixing piece 36, the tail end of each reed 29 is provided with a triangular extending part II 39, when the spring shafts 37 move outwards, the extending parts II 39 can be gradually extruded, each reed 29 deforms to one side of extrusion, the clamping pieces 32 are extruded to one side of the sliding clamp fixing plate 31 through bayonets I35, the clamping pieces 32 are temporarily released from the clamping teeth 26, meanwhile, elastic support of the springs II 38 is received, and the sliding blocks 24.
The invention provides a beta-ray method atmospheric particulate rotation alternate detection device, which comprises the following steps:
the method comprises the following steps: in the initial state, the air pump 42 is started to enable atmospheric gas to enter the air inlet pipe 40 after being filtered by the filter plate I47, and at the moment, the gas in the air inlet pipe 40 does not contain particulate matters after being filtered by the filter plate I47.
Step two: the handheld rotary rod 3 top carries out 90 rotations, at rotary rod 3 pivoted in-process, triangular prism 4 prizes connecting plate 49 and makes fixing clip 48 drive filter plate I47 to the upside prize, do not pass through in the filterable atmospheric gas of filter plate I47 gets into intake pipe 40, after accomplishing 90 rotations, atmospheric gas that the filter plate I47 nature whereabouts got into in the intake pipe 40 again filters, the extraction of the unfiltered gas in the intake pipe 40 by the air extractor 42 to the downside, make the particulate matter that contains in the atmosphere filter to filter plate II 54 on the rolling disc 5 on the surface.
Step three: after the operation is continued according to the second step, the filter plate II 54 with the particulate matters enters between the beta-ray generating device 51 and the beta-ray receiving device 52, the beta-ray emitted by the beta-ray generating device 51 passes through the filter plate II 54, and the beta-ray receiving device 52 detects the particulate matters on the filter plate II 54, so as to judge the size, the type, the concentration and the like of the particulate matters contained in the current atmosphere.
Step four: with the continuous implementation of the second step and the third step, the rotating disc 5 drives the driven wheel 15 to rotate, the driven wheel 15 drives the connecting ring 19 to perform circular motion, the connecting arm I20 and the connecting arm II 22 are respectively clamped with the sliding blocks 24 which drive the arc-shaped rails I16 and II 17 to perform bidirectional motion, the supporting arms I8 and II 10 are enabled to overturn towards the outside, the filter plate II 54 with particles is not supported by the supporting arms I8 and II 10 and then drops towards the lower side, and the supporting arms I8 and II 10 which overturn towards the outside are enabled to reset due to the fact that the pair of driving mechanisms 11 rub against the fixing bolts 7 and the sleeve 9 and are in reverse contact with the friction sleeve 9 and the fixing bolts 7.
Step five: when the filter plate card closes a mouthful 6 and rotates to support a section of thick bamboo 14 below, filter plate II 54 naturally falls into filter plate card and closes mouthful 6 in and receive the support of support arm I8 and support arm II 10 to stop in filter plate card closes mouthful 6, and it is rotatory along with the continuous operation of rotary rod 3, can carry out the alternate detection of circulating to the particulate matter in the atmosphere.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions are considered to be within the protective scope of the present invention.
Claims (7)
1. The utility model provides a rotatory detection device in turn of beta-ray method atmospheric particulates, includes detection device main part (1), beta ray generating device (51) and beta ray receiving arrangement (52), a serial communication port, be provided with base (2) in detection device main part (1), base (2) middle part is provided with rotary rod (3) that extend to detection device main part (1) upside, rotary rod (3) upper end isogonic is provided with four triangular prism (4), rotary rod (3) bottom is provided with rolling disc (5), the isogonic is provided with four filter plate block mouth (6) on rolling disc (5), it is provided with gim peg (7) to locate the riveting with filter plate block mouth (6) on rolling disc (5) downside, it is provided with convex support arm I (8) to connect on gim peg (7), the cover is equipped with sleeve pipe (9) on gim peg (7), a support arm II (10) which is symmetrical to the support arm I (8) is arranged on the sleeve (9), a pair of driving mechanisms (11) for driving the rotating disc (5) is symmetrically arranged on the front side of the rotating rod (3), an air inlet mechanism (12) is arranged on the rear side of the rotating rod (3), a beta-ray detection mechanism (13) for detecting particles is arranged on the left side of the rotating rod (3), and a support barrel (14) is arranged on the right side of the rotating rod (3);
the driving mechanism (11) comprises a driven wheel (15), an arc-shaped rail I (16) and an arc-shaped rail II (17), wherein the driven wheel (15) is in contact with the outer ring of the rotating disc (5), a fixed shaft I (18) is arranged on the lower side of the driven wheel (15), a connecting ring (19) is sleeved on the fixed shaft I (18), a connecting arm I (20) is hinged to the connecting ring (19), a connecting shaft (21) is arranged in the middle of the connecting arm I (20), a connecting arm II (22) is hinged to the lower end of the connecting shaft (21), and an included angle formed between the connecting arm I (20) and the connecting arm II (22;
a sliding chute I (23) is arranged in the arc-shaped rail I (16) and the arc-shaped rail II (16), a sliding block (24) is arranged in the sliding chute I (23), an extending part I (25) is arranged on the right side of the sliding block (24), a plurality of clamping teeth (26) are arranged on the left side of the sliding block (24), a sliding chute II (27) is arranged on the left side of the sliding chute I (23), a fixing shaft II (28) is arranged between the sliding chute I (23) and the sliding chute II (27), a reed (29) is connected to the fixing shaft II (28), a sliding clamp (30) clamped with the clamping teeth (26) is arranged in the sliding chute II (27), the sliding clamp (30) comprises a sliding clamp fixing plate (31) and a clamping plate (32), a fixing shaft (33) is arranged on the right side of the sliding clamp fixing plate III (31), a clamping plate (32) is arranged on the right side of the fixing shaft III (33), and a spring I (, the middle part of the card (32) is provided with a bayonet I (35) for clamping the reed (29);
arc rail I (16) rear end and arc rail II (17) front end are provided with stationary blade (36), stationary blade (36) middle part is run through and is provided with spring axle (37), the cover is equipped with spring II (38) on spring axle (37), reed (29) end extends to stationary blade (36) one side, and reed (29) end is provided with triangle-shaped extension II (39), when spring axle (37) move to the outside, can extrude extension II (39) gradually, makes reed (29) to extrude one side deformation.
2. The rotary and alternative detection device for the atmospheric particulates by the beta-ray method according to claim 1, characterized in that the air inlet mechanism (12) comprises an air inlet pipe (40), a rubber seat (41) for being attached to the rotary disc (5) and an air extractor (42), the air inlet pipe (40) extending to the upper side of the detection device main body (1) is arranged on the upper side of the rubber seat (41), a sealing rubber sleeve (43) is arranged at the upper end of the air inlet pipe (40), a bayonet II (44) is arranged on the front side of the sealing rubber sleeve (43), a support I (45) is arranged on the upper side of the bayonet II (44), an air inlet (46) is arranged on the inner side of the sealing rubber sleeve (43), an air filter plate I (47) for filtering the atmospheric particulates is arranged in the air inlet (46), a fixing clamp (48) is connected to the front side of the filter plate I (47), and the fixing clamp (48), fixing clip (48) front side is provided with connecting plate (49), connecting plate (49) upside is provided with spring III (50) of being connected with support I (45), rubber seat (41) downside is provided with and is used for bleeding air extractor (42) of intake pipe (40).
3. The rotation alternation detection device for atmospheric particulates by beta-ray method according to claim 1, characterized in that the beta-ray detection mechanism (13) comprises a beta-ray generation device (51) and a beta-ray receiving device (52), a bracket II (53) is connected to the left part of the base (2), the beta-ray generation device (51) is fixedly arranged on the bracket II (53), the beta-ray receiving device (52) fixed on the base (2) is arranged on the lower side of the beta-ray generation device (51), and the rotating disc (5) is positioned between the beta-ray generation device (51) and the beta-ray receiving device (52).
4. The rotation alternation detection device for atmospheric particulates by beta-ray method according to claim 1, characterized in that a plurality of filter plates II (54) are arranged in the support cylinder (14), the filter plates II (54) can correspond to the positions of the bayonets II (44) and fall into the bayonets II (44), and the thickness of the filter plates II (54) is the same as that of the rotating disc (5).
5. The rotary alternation detection device for atmospheric particulates by beta-ray method according to claim 1, characterized in that the triangular prism (4) is located at the position of the connecting plate (49), and when the rotary rod (3) drives the triangular prism (4) to rotate, the triangular prism (4) prizes the connecting plate (49) upwards.
6. The rotary alternation detection device for atmospheric particulates by beta-ray method according to claim 1, characterized in that the rear end of the connecting arm I (20) is hinged with the slide card (30) of the arc-shaped rail I (16), the rear end of the connecting arm II (22) is hinged with the slide card (30) of the arc-shaped rail II (17), and the arc-shaped rail I (16) and the arc-shaped rail II (17) are oppositely arranged.
7. The rotary alternation detector for atmospheric particulates by beta-ray method according to claim 1, wherein the extension I (25) of the arc-shaped rail I (16) can be contacted with the sleeve (9), and the extension I (25) of the arc-shaped rail II (17) can be contacted with the fixing bolt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010891054.7A CN111982769B (en) | 2020-08-30 | 2020-08-30 | Beta-ray method atmospheric particulate rotating alternate detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010891054.7A CN111982769B (en) | 2020-08-30 | 2020-08-30 | Beta-ray method atmospheric particulate rotating alternate detection device |
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| CN111982769A true CN111982769A (en) | 2020-11-24 |
| CN111982769B CN111982769B (en) | 2023-07-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763661A (en) * | 2020-12-29 | 2021-05-07 | 葛建华 | Outdoor moving platform with protection function for atmospheric environmental pollution monitoring |
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