CN214473149U - Air monitoring device for environmental evaluation - Google Patents

Abstract

The utility model discloses an air monitoring device for environmental evaluation, which comprises a shell, a sealing cover arranged on the shell, a sampling pipe arranged on the sealing cover, an air outlet arranged on the shell, an air pump arranged on the shell, an adsorption plate arranged on the shell, a steering adjusting mechanism, a flow adjusting mechanism, a sealing mechanism, an adsorption mechanism and a monitoring mechanism; flow control mechanism is including locating fixed plate on the sampling pipe, locating axis body on the fixed plate, locating regulating plate on the axis body, locating regulating handle on the regulating plate, locating first spacing groove on the regulating handle, locating setting element on the first spacing groove, locate first elastic component on the setting element, locate second spacing groove on the regulating handle, locate locking lever on the second spacing groove, locate second elastic component, water conservancy diversion subassembly and clearance subassembly on the locking lever.

Description

Air monitoring device for environmental evaluation

Technical Field

The utility model belongs to the technical field of air monitoring, especially, relate to an air monitor device is used in environmental assessment.

Background

Air monitoring refers to the fixed-point, continuous, or timed sampling and measurement of pollutants present in the air. In order to monitor air, a plurality of air monitoring points are generally set up in a city, automatic monitoring instruments are installed for continuous automatic monitoring, monitoring results are sent to a person to be retrieved periodically, and relevant data are analyzed and obtained. Items for air monitoring mainly include sulfur dioxide, nitric oxide, hydrocarbons, floating dust, and the like. The air monitoring device commonly used in the market at present does not consider the influence of the change of the environment on the air density, and only measures the air inflow singly, so that the measurement result is often not accurate enough. And under the condition that the air inlet amount is overlarge, the adsorption effect of the electronic adsorption plate on impurities in the air is influenced, and the measurement data is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide a controllable, the convenient operation's of flow air monitor device is used in evaluation of circles.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an air monitoring device for environmental evaluation comprises a shell, a sealing cover arranged on the shell, a sampling pipe arranged on the sealing cover, an air outlet arranged on the shell, an air pump arranged on the shell, an adsorption plate arranged on the shell, a steering adjusting mechanism, a flow adjusting mechanism, a sealing mechanism, an adsorption mechanism and a monitoring mechanism, wherein the air pump is arranged on the shell; the flow regulating mechanism comprises a fixed plate arranged on the sampling pipe, a shaft body arranged on the fixed plate, a regulating plate arranged on the shaft body, a regulating handle arranged on the regulating plate, a first limiting groove arranged on the regulating handle, a positioning piece arranged on the first limiting groove, a first elastic piece arranged on the positioning piece, a second limiting groove arranged on the regulating handle, a locking rod arranged on the second limiting groove, a second elastic piece arranged on the locking rod, a flow guide assembly and a cleaning assembly; a plurality of through grooves are formed in the fixing plate; a plurality of slots are formed in the adjusting plate; a plurality of positioning grooves matched with the positioning pieces are formed in the sampling pipe; the flow regulating mechanism is arranged, and the regulating handle is rotated to enable the regulating plate to rotate relative to the fixing plate, so that the through groove on the fixing plate and the open groove on the regulating plate are staggered to expose corresponding opening degrees, the air inlet amount can be conveniently regulated, the adsorption amount on the adsorption plate can be regulated, and the use is convenient; before rotating adjustment handle, need pull up the locking lever earlier, the second elastic component is compressed, and locking lever tip breaks away from the contact with the setting element, can rotate adjustment handle, and after adjustment handle rotated a locating position, the setting element received the elasticity card of first elastic component and is fixed on the constant head tank that corresponds on the sampling pipe, loosens the locking lever this moment, makes it push automatic gliding by the elasticity of second elastic component, and the card is on the setting element for the setting element is fixed, and easy operation is convenient.

Preferably, the cleaning assembly comprises an arc-shaped plate arranged on the fixed plate, a scraping strip arranged on the arc-shaped plate, a convex block arranged on the arc-shaped plate, a convex rod arranged on the convex block, a sliding rod arranged on the convex block and a third elastic piece arranged on the sliding rod; one end of the sliding rod is provided with a semicircular lug which can be clamped on the fixed plate, so that the arc-shaped plate is fixed; the scraping strips are arranged, so that when the adjusting plate is rotated, impurities on the adjusting plate can be scraped and cleaned, and influence on flow adjustment due to long-term accumulation is avoided; the pulling slide bar makes it slide toward the nose bar direction, and the third elastic component is compressed, then the arc can be followed the fixed plate and dismantled and get off and change or clear up convenient operation.

Preferably, the flow guide assembly comprises a fixing ring arranged on the sampling pipe, a plurality of first flow guide strips arranged on the fixing ring, a sliding shaft body arranged on the shaft body, a fourth elastic element arranged on the sliding shaft body, a flow guide cap arranged on the sliding shaft body and a plurality of second flow guide strips arranged on the flow guide cap; the first flow guide strip and the second flow guide strip are arranged, so that air can smoothly pass through the fixing plate and the adjusting plate along the direction of the cambered surface of the sampling tube after entering the sampling tube and then enter the shell.

Preferably, the steering adjusting mechanism comprises a first rotating shaft arranged on the sampling tube, a first rotating member arranged on the first rotating shaft, a first clamping groove arranged on the sampling tube, a first locking member arranged on the first clamping groove, a first limiting spring arranged on the first locking member, a second rotating shaft arranged on the first rotating member, a second rotating member arranged on the second rotating shaft, an air inlet arranged on the second rotating member, a second clamping groove arranged on the second rotating member, a second locking member arranged on the second clamping groove, a second limiting spring arranged on the second locking member, and a handle assembly; the first rotating shaft is arranged and can drive the first rotating piece to carry out direction adjustment in the vertical direction; a second rotating shaft is arranged and can drive the second rotating part and the air inlet to rotate in the horizontal direction; the bidirectional adjustment rotation can enable the adjustment direction of the air inlet to be more free and flexible; the first locking piece is automatically clamped and fixed on the first rotating shaft under the pushing action of the elastic force of the first limiting spring; the second locking piece is pushed by the elastic force of the second limiting spring to be automatically clamped on the second rotating shaft for fixing, and the operation is simple and convenient.

Preferably, the handle assembly comprises a disc arranged on the first rotating shaft, a fixed rod arranged on the disc, a handle arranged on the fixed rod, a sliding block arranged on the handle and a plurality of fifth elastic pieces arranged on the sliding block; a rubber gasket is arranged on one side of the sliding block, so that the comfort level is improved; the edge of the handle is designed to be a round angle, so that the skin is prevented from being injured when the hand operates the handle; hold on the handle, the sliding block receives the extrusion, and the fifth elastic component is slowly compressed, and the sliding block slides toward the handle direction, increases the comfort level that the handle used.

Preferably, the sealing mechanism comprises an annular seat arranged on the sealing cover, an annular sleeve arranged on the annular seat, a plurality of rubber rings arranged on the annular sleeve, a third limiting groove arranged on the annular seat, a third locking piece arranged on the third limiting groove, a sixth elastic piece arranged on the third locking piece, a mandril arranged on the annular seat, a fourth limiting groove arranged on the annular seat, a limiting piece arranged on the fourth limiting groove and a third limiting spring arranged on the limiting piece; a slope is arranged on the third locking piece; push down the ejector pin, its tip supports on the slope on the third locking piece, pushes away and extrudes the third locking piece and slides toward third spacing groove direction, and the third locking piece breaks away from the contact back with the annular cover, can take out annular cover earlier, the dismantlement of the sampling pipe of being convenient for.

Preferably, the adsorption mechanism comprises a clamping piece arranged on the adsorption plate, a seventh elastic piece arranged on the clamping piece, a fixed block arranged on the adsorption plate and a gasket arranged on the fixed block; the gasket is arranged, so that when the fixing block is held by a hand, the contact area of the fixing block and the hand is increased, and the friction force is increased; the fixed block is pushed by a hand to drive the adsorption plate to rotate, the clamping piece is extruded by the side wall of the shell and slowly retracts into the groove on the adsorption plate, and the fixed block can be pulled until the clamping piece completely enters the shell, so that the adsorption plate is taken out of the shell and cleaned.

Preferably, the monitoring mechanism comprises a temperature and humidity sensor arranged on the sealing cover, a particulate matter concentration sensor arranged on the sealing cover, a storage battery arranged on the shell, a central processing unit arranged on the shell and a display screen arranged on the shell; the air enters into the inside of casing through the sampling pipe, and particulate matter, humiture and the particulate matter adsorption capacity information transfer to central processing unit in particulate matter concentration sensor, temperature and humidity sensor and the adsorption plate in with the air, through central processing unit's data processing, with information transfer to the display screen on, the visual display of being convenient for conveniently watches.

In summary, the flow regulating mechanism is arranged, the regulating handle is rotated to enable the regulating plate to rotate relative to the fixing plate, the through groove on the fixing plate and the opening groove on the regulating plate can be staggered to expose corresponding opening degrees, the air inlet amount can be conveniently regulated, the adsorption amount on the adsorption plate can be regulated, and the use is convenient; before rotating adjustment handle, need pull up the locking lever earlier, the second elastic component is compressed, and locking lever tip breaks away from the contact with the setting element, can rotate adjustment handle, and after adjustment handle rotated a locating position, the setting element received the elasticity card of first elastic component and is fixed on the constant head tank that corresponds on the sampling pipe, loosens the locking lever this moment, makes it push automatic gliding by the elasticity of second elastic component, and the card is on the setting element for the setting element is fixed, and easy operation is convenient.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a cross-sectional view taken along a-a of fig. 2.

Fig. 4 is an enlarged view at B in fig. 3.

Fig. 5 is an enlarged view at E in fig. 3.

Fig. 6 is an enlarged view at G in fig. 5.

Fig. 7 is an enlarged view at F in fig. 3.

Fig. 8 is an enlarged view at H in fig. 3.

Fig. 9 is an enlarged view at I in fig. 3.

Fig. 10 is an enlarged view at J in fig. 9.

Fig. 11 is a cross-sectional view taken along line C-C of fig. 2.

Fig. 12 is an enlarged view at D in fig. 11.

Fig. 13 is an exploded view of a part of the structure of the flow rate adjusting mechanism.

Fig. 14 is an enlarged view at K in fig. 13.

Detailed Description

As shown in fig. 1 to 14, an air monitoring device for environmental evaluation comprises a housing 11, a sealing cover 12, a sampling tube 13, an air outlet 14, an air pump 15, an adsorption plate 16, a steering adjustment mechanism, a flow adjustment mechanism, a sealing mechanism, an adsorption mechanism and a monitoring mechanism; the cover 12 is fixed on the shell 11; the sampling tube 13 is detachably connected to the cover 12; the air outlet 14 is fixed on the side wall of the shell 11; the air pump 15 is fixed on the bottom of the shell 11; the adsorption plate 16 is an existing electronic adsorption plate and is detachably connected to the housing 11.

Further, the steering adjusting mechanism includes a first rotating shaft 21, a first rotating member 22, a first engaging groove 23, a first locking member 24, a first limiting spring 25, a second rotating shaft 26, a second rotating member 27, an air inlet 28, a second engaging groove 29, a second locking member 210, a second limiting spring 211 and a handle assembly; the first rotating shaft 21 is rotatably arranged on the sampling pipe 13 in a penetrating way; the first rotating member 22 is fixedly sleeved on the first rotating shaft 21; the first clamping groove 23 is formed in the sampling tube 13; the first locking member 24 can slide relative to the first card slot 23; the first limiting spring 25 is an existing spring, one end of the first limiting spring is fixed on the first clamping groove 23, and the other end of the first limiting spring is fixed on the first locking piece 24; the second rotating shaft 26 is rotatably disposed through the first rotating member 22; the second rotating member 27 is fixedly sleeved on the second rotating shaft 26; the air inlet 28 is fixed on the second rotating member 27; the second slot 29 is opened on the second rotating part 27; the second locking member 210 can slide relative to the second locking groove 29; the second limiting spring 211 is an existing spring, one end of the second limiting spring is fixed on the second clamping groove 29, and the other end of the second limiting spring is fixed on the second locking piece 210; the first rotating shaft 21 is rotated to drive the first rotating part 22 to perform direction adjustment in the vertical direction; rotating the air inlet 28 to rotate the second rotating member 27 and the air inlet 28 in the horizontal direction relative to the second rotating shaft 26; the bidirectional adjustment rotation can enable the adjustment direction of the air inlet 28 to be more free and flexible; the first locking piece 24 is pushed by the elastic force of the first limiting spring 25 and automatically clamped and fixed on the first rotating shaft 21; the second locking member 210 is pushed by the elastic force of the second limiting spring 211 to be automatically clamped and fixed on the second rotating shaft 26, and the operation is simple and convenient.

Further, the handle assembly comprises a disc 31, a fixed rod 32, a handle 33, a sliding block 34 and a fifth elastic element 35; the disc 31 is fixed on the first rotating shaft 21; the number of the fixing rods 32 is 2, and the fixing rods are symmetrically fixed on the disc 31; the handle 33 is fixed on the fixing rod 32; the sliding block 34 can slide relative to one side of the handle 33; the fifth elastic element 35 is an existing spring, one end of the fifth elastic element is fixed on the sliding block 34, and the other end of the fifth elastic element is fixed on the handle 33; a rubber gasket is arranged on one side of the sliding block 34, so that the comfort level is improved; the edge of the handle 33 is designed to be a round angle, so that the skin is prevented from being injured when the handle 33 is operated by a hand; when the handle 33 is held by hand, the sliding block 34 is squeezed, the fifth elastic element 35 is slowly compressed, and the sliding block slides towards the handle 33, so that the comfort level of the handle 33 is improved.

Further, the flow rate adjusting mechanism comprises a fixing plate 41, a shaft body 42, an adjusting plate 43, an adjusting handle 44, a first limiting groove 45, a positioning member 46, a first elastic member 47, a second limiting groove 48, a locking rod 49, a second elastic member 410, a flow guide assembly and a cleaning assembly; the fixing plate 41 is fixed on the sampling tube 13; the shaft body 42 is fixedly arranged on the fixing plate 41 in a penetrating manner; the adjusting plate 43 is rotatably sleeved on the shaft body 42; the adjusting handle 44 is fixed on the adjusting plate 43; the first limit groove 45 is formed in the adjusting handle 44; the positioning element 46 can slide relative to the first limiting groove 45; the first elastic element 47 is an existing spring, one end of the first elastic element is fixed on the first limiting groove 45, and the other end of the first elastic element is fixed on the positioning element 46; the second limit groove 48 is formed on the adjusting handle 44; the locking rod 49 can slide relative to the second limit groove 48; the second elastic element 410 is an existing spring, one end of which is fixed on the second limiting groove 48, and the other end of which is fixed on the locking rod 49; a plurality of through grooves are formed in the fixing plate 41; a plurality of slots are formed on the adjusting plate 43; a plurality of positioning grooves matched with the positioning pieces 46 are formed in the sampling pipe 13; the adjusting handle 44 is rotated to enable the adjusting plate 43 to rotate relative to the fixing plate 41, so that the through groove on the fixing plate 41 and the open groove on the adjusting plate 43 are staggered to expose corresponding opening degrees, the air inlet amount can be conveniently adjusted, the adsorption amount on the adsorption plate 16 can be adjusted, and the use is convenient; before the adjusting handle 44 is rotated, the locking rod 49 needs to be pulled up firstly, the second elastic piece 410 is compressed, the end part of the locking rod 49 is separated from the positioning piece 46, the adjusting handle 44 can be rotated, after the adjusting handle 44 rotates to a certain position, the positioning piece 46 is clamped on the corresponding positioning groove on the sampling tube 13 by the elastic force of the first elastic piece 47 for fixation, at the moment, the locking rod 49 is loosened, the locking rod 49 is pushed by the elastic force of the second elastic piece 410 to automatically slide downwards and is clamped on the positioning piece 46, so that the positioning piece 46 is fixed, and the operation is simple and convenient.

Further, the cleaning assembly comprises an arc-shaped plate 51, a scraping strip 52, a convex block 53, a convex rod 54, a sliding rod 55 and a third elastic piece 56; the arc-shaped plate 51 is detachably connected to the fixed plate 41; the scraping strip 52 is an existing rubber strip and is fixed on the arc-shaped plate 51; the projection 53 is fixed on the arc-shaped plate 51; the protruding rod 54 is fixed on the protruding block 53; the sliding rod 55 can slide relative to the arc-shaped plate 51; the third elastic member 56 is an existing spring, one end of which is fixed on the sliding rod 55, and the other end of which is fixed on the protruding rod 54; a semicircular convex block is arranged at one end of the sliding rod 55 and can be clamped on the fixing plate 41, so that the arc-shaped plate is fixed; when the adjusting plate 43 is rotated, the scraping strip can scrape and clean impurities on the adjusting plate 43, so that the influence on flow adjustment due to long-term accumulation is avoided; the sliding rod 55 is pulled to slide towards the protruding rod 54, the third elastic element 56 is compressed, and then the arc-shaped plate 51 can be detached from the fixed plate 41 for replacement or cleaning, so that the operation is convenient.

Further, the flow guide assembly comprises a fixed ring 61, a first flow guide strip 62, a sliding shaft body 63, a fourth elastic element 64, a flow guide cap 65 and a second flow guide strip 66; the fixing ring 61 is fixed on the sampling tube 13; a plurality of first flow guide strips 62 are arranged and are fixed on the fixing ring 61 at equal intervals in an annular manner; the sliding shaft body 63 can slide relative to the shaft body 42; the fourth elastic element 64 is an existing spring, one end of the fourth elastic element is fixed on the sliding shaft body 63, and the other end of the fourth elastic element is fixed on the shaft body 42; the deflector cap 65 is fixed on the sliding shaft body 63; the second flow guide strips 66 are provided with a plurality of flow guide caps 65 which are fixed on the flow guide caps at equal intervals in an annular manner; the first and second air guide strips 62 and 66 are arranged so that air can smoothly pass through the fixing plate 41 and the adjusting plate 43 along the arc surface of the sampling tube 13 and enter the housing 11 after entering the sampling tube 13.

Further, the adsorption mechanism comprises a clamping piece 71, a seventh elastic piece 72, a fixed block 73 and a gasket 74; the card 71 can slide relative to one side of the adsorption plate 16; the seventh elastic element 72 is an existing spring, one end of which is fixed on the clamping element 71, and the other end of which is fixed on the adsorption plate 16; the number of the fixed blocks 73 is 2, and the fixed blocks are symmetrically fixed on the adsorption plate 16; the gasket 74 is an existing rubber gasket, is provided with concave-convex lines and is fixed on the fixed block 73; when the hand is held on the fixed block 73, the gasket 74 increases the contact area with the hand, and increases the friction force; the fixed block 73 is pushed by hand to drive the adsorption plate 16 to rotate, the clamping piece 71 is extruded by the side wall of the shell 11 and slowly retracts into the groove on the adsorption plate 16 until the clamping piece completely enters the groove, and then the fixed block 73 can be pulled to take out the adsorption plate 16 from the shell 11 for cleaning.

Further, the monitoring mechanism comprises a temperature and humidity sensor 81, a particulate matter concentration sensor 82, a storage battery 83, a central processing unit 84 and a display screen 85; the temperature and humidity sensor 81 is fixed on the sealing cover 12; the particulate matter concentration sensor 82 is fixed to the lid 12; the storage battery 83 is fixed on the bottom of the shell 11; the central processor 84 is fixed on the bottom of the shell 11; the display screen 85 is fixedly arranged on the outer side wall of the shell 11; the particulate matter concentration sensor 82, the temperature and humidity sensor 81 and the adsorption plate 16 are all connected with the central processing unit 84 through a display screen 85; the storage battery 83 is electrically connected with the central processing unit 84; the air enters into the inside of casing 11 through sampling pipe 13, and particulate matter, humiture and the particulate matter adsorption capacity information transfer in the air to central processing unit 84 are carried to particulate matter concentration sensor 82, temperature and humidity sensor 81 and adsorption plate 16, and on data processing through central processing unit 84, with information transfer to display screen 85, the visual display of being convenient for conveniently watches.

Further, the sealing mechanism includes an annular seat 91, an annular sleeve 92, a rubber ring 93, a third limiting groove 94, a third locking piece 95, a sixth elastic piece 96, a top rod 97, a fourth limiting groove 98, a limiting piece 99 and a third limiting spring 910; the annular seat 91 is fixed to the cover 12; the annular sleeve 92 is detachably connected to the annular seat 91; a plurality of rubber rings 93 are embedded on the annular sleeve 92 at equal intervals; the third limiting groove 94 is formed in the annular seat 91; the third locking member 95 can slide relative to the third limiting groove 94; the sixth elastic member 96 is an existing spring, and one end of the sixth elastic member is fixed to the third locking member 95, and the other end of the sixth elastic member is fixed to the third limiting groove 94; the top rod 97 can slide up and down relative to the annular seat 91; the fourth limit groove 98 is formed in the annular seat 91; the limiting member 99 can slide relative to the fourth limiting groove 98; the third limiting spring 910 is an existing spring, one end of the third limiting spring is fixed on the limiting member 99, and the other end of the third limiting spring is fixed in the fourth limiting groove 98 for sliding; a slope is arranged on the third locking piece 95; the ejector rod 97 is pressed downwards, the end part of the ejector rod is abutted to the slope of the third locking piece 95, the third locking piece 95 is pushed to slide towards the third limiting groove 94, and the annular sleeve 92 can be taken out firstly after the third locking piece 95 is separated from the annular sleeve 92, so that the sampling tube 13 can be conveniently detached.

Claims (8)

1. An air monitoring device for environmental evaluation comprises a shell (11), a sealing cover (12) arranged on the shell (11), a sampling pipe (13) arranged on the sealing cover (12), an air outlet (14) arranged on the shell (11), an air suction pump (15) arranged on the shell (11), an adsorption plate (16) arranged on the shell (11), a steering adjusting mechanism, a flow adjusting mechanism, a sealing mechanism, an adsorption mechanism and a monitoring mechanism; the method is characterized in that: flow control mechanism is including locating fixed plate (41) on sampling pipe (13), locating axis body (42) on fixed plate (41), locating regulating plate (43) on axis body (42), locating regulating handle (44) on regulating plate (43), locate first spacing groove (45) on regulating handle (44), locate locating piece (46) on first spacing groove (45), locate first elastic component (47) on locating piece (46), locate second spacing groove (48) on regulating handle (44), locate locking lever (49) on second spacing groove (48), locate second elastic component (410), water conservancy diversion subassembly and clearance subassembly on locking lever (49).

2. The air monitor device for environmental assessment according to claim 1, wherein: the cleaning assembly comprises an arc-shaped plate (51) arranged on the fixing plate (41), a scraping strip (52) arranged on the arc-shaped plate (51), a convex block (53) arranged on the arc-shaped plate (51), a convex rod (54) arranged on the convex block (53), a sliding rod (55) arranged on the convex block (53) and a third elastic piece (56) arranged on the sliding rod (55).

3. The air monitor device for environmental assessment according to claim 1, wherein: the water conservancy diversion subassembly is including locating solid fixed ring (61) on sampling pipe (13), locating a plurality of first water conservancy diversion strip (62) on solid fixed ring (61), locating slide axis body (63) on axis body (42), locate fourth elastic component (64) on the slide axis body (63), locate water conservancy diversion cap (65) on the slide axis body (63) and locate a plurality of second water conservancy diversion strip (66) on water conservancy diversion cap (65).

4. The air monitor device for environmental assessment according to claim 1, wherein: turn to adjustment mechanism including locating first pivot (21) on sampling pipe (13), locate first rotating member (22) on first pivot (21), locate first draw-in groove (23) on sampling pipe (13), locate first locking piece (24) on first draw-in groove (23), locate first spacing spring (25) on first locking piece (24), locate second pivot (26) on first rotating member (22), locate second rotating member (27) on second pivot (26), locate air inlet (28) on second rotating member (27), locate second draw-in groove (29) on the second rotating member, locate second locking piece (210) on second draw-in groove (29), locate spacing spring (211) of second and handle subassembly on second locking piece (210).

5. The air monitor device for environmental assessment according to claim 4, wherein: the handle assembly comprises a disc (31) arranged on the first rotating shaft (21), a fixing rod (32) arranged on the disc (31), a handle (33) arranged on the fixing rod (32), a sliding block (34) arranged on the handle (33) and a plurality of fifth elastic pieces (35) arranged on the sliding block (34).

6. The air monitor device for environmental assessment according to claim 1, wherein: the sealing mechanism comprises an annular seat (91) arranged on the sealing cover (12), an annular sleeve (92) arranged on the annular seat (91), a plurality of rubber rings (93) arranged on the annular sleeve (92), a third limiting groove (94) arranged on the annular seat (91), a third locking piece (95) arranged on the third limiting groove (94), a sixth elastic piece (96) arranged on the third locking piece (95), a mandril (97) arranged on the annular seat (91), a fourth limiting groove (98) arranged on the annular seat (91), a limiting piece (99) arranged on the fourth limiting groove (98) and a third limiting spring (910) arranged on the limiting piece (99).

7. The air monitor device for environmental assessment according to claim 1, wherein: the adsorption mechanism comprises a clamping piece (71) arranged on the adsorption plate (16), a seventh elastic piece (72) arranged on the clamping piece (71), a fixed block (73) arranged on the adsorption plate (16) and a gasket (74) arranged on the fixed block (73).

8. The air monitor device for environmental assessment according to claim 1, wherein: monitoring mechanism is including locating temperature and humidity sensor (81) on closing cap (12), locating particulate matter concentration sensor (82) on closing cap (12), locating battery (83) on casing (11), locating central processing unit (84) on casing (11) and locating display screen on casing (11).

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