A modular atmospheric particle monitoring and early warning device

Abstract

The present invention discloses a modular atmospheric particle monitoring and early warning device, which belongs to the technical field of atmospheric particle monitoring. The present invention comprises a cabinet, and a detection module is arranged on the inner side of the lower part of the cabinet, and an alarm is fixedly installed on the outer side of the cabinet, an external pipe is fixedly installed through the top of the cabinet, and a bellows is fixedly installed on the lower end of the external pipe, and a connecting pipe is fixedly connected to the lower end of the bellows, and a rotating pipe is sealed and rotatably connected to the upper end of the pipe arranged on the upper end of the detection module, and a movable frame is fixedly installed on the outer side of the rotating pipe; a negative pressure module is arranged between the connecting pipe and the movable frame; and a collection module is fixedly connected to the upper end of the external pipe. The modular atmospheric particle monitoring and early warning device adopts a modular structure, which is easy to disassemble and carry, and can realize multi-mode sampling by adjusting the sampling suction force, and can realize airflow flushing of the pipe after a single detection is completed to avoid residual particles affecting the accuracy of the next detection.

Description

Technical Field

[0001] The present invention relates to the technical field of atmospheric particle monitoring, and in particular to a modular atmospheric particle monitoring and early warning device. Background Art

[0002] Atmospheric particulate matter is a general term for various solid and liquid particulate matter present in the atmosphere. The pollution of particulate matter in the atmosphere has become a major environmental problem. In the process of atmospheric environment monitoring and governance, it is necessary to use atmospheric particle monitoring and early warning devices to monitor the atmospheric particles in the environment.

[0003] The prior art (application number: 202010274267.5, Chinese patent application filed on April 9, 2020) discloses a monitoring mechanism for atmospheric particulate matter concentration, the monitoring mechanism comprising at least one collection channel connected to the atmosphere and collecting particulate matter in the atmosphere; a monitoring host connected to the collection channel and monitoring the particulate matter in the collection channel to obtain monitoring data. The monitoring mechanism for atmospheric particulate matter concentration provided by the present invention is rich in functions, low in noise, and high in stability.

[0004] During the use of the prior art, after a single atmospheric collection, particulate matter in the sample atmosphere is easily attached to and retained on the internal space and inner wall of the collection channel, thereby affecting the data accuracy of the next sampling test, and there are certain usage defects. Summary of the invention

[0005] The purpose of the present invention is to provide a modular atmospheric particle monitoring and early warning device to solve the problem raised by the above background technology that the atmospheric particle monitoring and early warning devices currently on the market are easily affected by residual particles from the previous monitoring process during the monitoring process, thereby reducing the monitoring accuracy.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a modular atmospheric particle monitoring and early warning device, comprising a cabinet, a detection module is arranged on the inner side of the lower part of the cabinet, and an alarm is fixedly installed on the outer side of the cabinet, an external pipe is fixedly installed through the top of the cabinet, a bellows is fixedly installed on the lower end of the external pipe, and a connecting pipe is fixedly connected to the lower end of the bellows, a rotating pipe is sealed and rotatably connected to the upper end of the pipe arranged on the upper end of the detection module, and a movable frame is fixedly installed on the outer side of the rotating pipe, a motor is fixedly installed on the inner side of the upper part of the cabinet, and a transmission mechanism is connected between the output end of the motor and the movable frame;

[0007] A negative pressure module is provided between the connecting pipe and the movable frame, and the negative pressure module includes a reciprocatingly twisted rubber sac;

[0008] The upper end of the external tube is fixedly connected with a collection module for realizing diversified collection of atmospheric samples, and the collection module includes a first collection tube and a second collection tube that are telescopically connected, and the lower end of the first collection tube is fixedly connected to the upper end of the external tube through a nut, and a sealing adjustment component is provided on the first collection tube for adjusting the sealing between the first collection tube and the second collection tube to adjust the collection mode;

[0009] A fixing frame is symmetrically fixedly installed on the upper inner wall of the cabinet, and a guide column is vertically fixedly installed on the upper surface of the fixing frame. A slapping component is also arranged on the fixing frame to realize slapping and vibration of the rubber bag.

[0010] Preferably, the transmission mechanism includes a tooth block evenly fixedly mounted on the outer wall of the upper annular component of the movable frame, and a driving gear is fixedly mounted on the output end of the motor, and the driving gear and the tooth block are meshed and connected, and the driving gear drives the movable frame to reciprocate under the control of the motor.

[0011] Preferably, the negative pressure module includes an upper plate seat and a lower plate seat which are respectively fixedly mounted on the upper and lower ends of the rubber bladder body, and the lower plate seat is keyed to the upper end of the movable frame, and the movable frame drives the lower plate seat to rotate synchronously during rotation, and at the same time, the left and right openings of the upper plate seat are sleeved on the outside of the guide column, and fixed pipes are passed through the center positions of the lower plate seat and the upper plate seat, and the pipes on the lower plate seat and the upper plate seat are fixedly connected by fixing nuts, rotating tubes and connecting tubes.

[0012] Preferably, the lower plate seat cooperates with the upper plate seat to twist and restore the rubber bladder during the reciprocating rotation process. During the twisting process of the rubber bladder, the upper plate seat is driven to slide downward on the outside of the guide column. Air passages are respectively opened at the center positions of the upper and lower ends of the rubber bladder, and the two air passages at the upper and lower ends of the rubber bladder are respectively sealed and connected to the pipes on the upper and lower plate seats. At the same time, a first sealing rubber film is sealed and fitted in the air passages at the upper and lower ends of the rubber bladder to form a one-way valve structure. When the rubber bladder is twisted, exhaust is achieved through the air passage at its lower end, and when the rubber bladder is restored and expanded, air is inhaled through the air passage at its upper end.

[0013] Preferably, a positioning pin is elastically and telescopically connected through the upper portion of the first collection tube, and a positioning groove of an annular structure is provided on the lower outer wall of the second collection tube, and the positioning pin and the positioning groove constitute a clamping limit structure.

[0014] Preferably, the sealing adjustment assembly includes a guide seat fixedly mounted on the inner side of the lower end of the first collection tube, and a movable plate is slidably arranged on the inner side of the guide seat, and an air storage bag is fixedly connected between the two ends of the movable plate and the inner wall of the lower end of the guide seat, and the movable plate moves downward and squeezes the air storage bag under the action of the sampling negative pressure.

[0015] Preferably, a sealing bag with an annular structure is embedded and fixedly mounted on the upper inner wall of the first collection tube, and the sealing bag and the air storage bag are connected to each other through an air guide tube for gas transmission, and the sealing bag is inflated and fits against the lower outer wall of the second collection tube.

[0016] Preferably, the upper end of the first collection tube is evenly provided with air holes, and a second sealing film is fitted on the inner wall of the upper end of the first collection tube, and the positions of the second sealing film and the air holes correspond to each other and seal the air holes, and the second sealing film will deform under the action of air pressure to release the seal on the air holes.

[0017] Preferably, the slapping assembly includes a sliding ring sleeved on the outside of the guide column, and a spring is connected between the sliding ring and the fixed frame, and the sliding ring is located below the upper plate seat, and a slapping piece is elastically rotatably installed below the fixed frame, and a traction rope is wrapped around the shaft of the slapping piece, and the upper end of the traction rope is fixedly connected to the outside of the sliding ring. At the same time, during the upward movement of the sliding ring, the slapping piece is pulled by the traction rope to rotate elastically to slap the rubber bag.

[0018] Preferably, a partition is provided between the upper and lower parts of the cabinet, and a one-way air inlet pipe is symmetrically fixedly installed on the partition, and a filter is provided on the one-way air inlet pipe. At the same time, the cabinet door on the upper part of the cabinet remains sealed after closing, and an electromagnetic valve is provided on the connecting pipe. At the same time, when the rubber bladder is twisted, the one-way air inlet pipe automatically draws hot air near the detection module.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the modular atmospheric particle monitoring and early warning device adopts a modular structure, is easy to disassemble and carry, can realize multi-mode sampling by adjusting the sampling suction force, and can realize air flow flushing of the pipe after a single detection is completed, so as to avoid residual particles affecting the accuracy of the next detection. The specific contents are as follows;

[0020] 1. A lower plate seat, an upper plate seat and a first collection tube are provided. Through the nuts on the lower plate seat and the upper plate seat, the connection tube and the rotating tube can be conveniently disassembled and assembled, and the first collection tube can be conveniently disassembled and assembled with the external tube through the nuts, so as to realize the disassembly, assembly and maintenance of the negative pressure module and the collection module, and effectively improve the flexibility of the equipment;

[0021] 2. A rubber sac is provided. Through the reciprocating rotation of the movable frame, the movable frame can drive the rubber sac to twist and restore reciprocally. During the twisting process of the rubber sac, the inhaled air sample can be transported to the detection module through the air channel at the lower end thereof for detection. When the rubber sac is restored, the air channel at the upper end thereof can cooperate with the first collection tube and the second collection tube to automatically collect the air sample;

[0022] 3. A first collection tube, a second collection tube and a sealing bag are provided. When the twisting speed of the rubber bag is fast, the negative pressure at the lower end of the first collection tube is large, so that the movable plate can move downward and squeeze the air storage bag. After the air storage bag is pressurized, part of the gas is transported to the sealing bag. At this time, the sealing bag will expand and seal the connection between the first collection tube and the second collection tube, so that the device can only inhale the atmospheric sample through the top of the first collection tube. When the twisting speed of the rubber bag is low, the negative pressure at the lower end of the first collection tube is small, so that the movable plate remains stationary. At this time, the sealing bag cannot seal the connection between the first collection tube and the second collection tube, so that the second sealing film will bend elastically under the action of air pressure to open the pores. At this time, the atmospheric sample can be synchronously absorbed through the top of the first collection tube and the pores, thereby realizing diversified collection and monitoring;

[0023] 4. A rubber bladder, a striking piece and a one-way air inlet pipe are provided. As the rubber bladder recovers after being twisted, the upper plate seat will automatically move up. At the same time, the sliding ring will move up under the action of the spring force, and the striking piece will be pulled by the traction rope to rotate elastically, so that the striking piece will hit the rubber bladder to avoid residual atmospheric particles inside the rubber bladder. As the rubber bladder is twisted, the cabinet door on the upper part remains sealed after closing, so that the one-way air inlet pipe can absorb hot air near the detection module under the action of negative pressure. After the monitoring is completed, the solenoid valve is opened to allow the hot air on the inner side of the upper part of the cabinet to enter the connecting pipe through the solenoid valve, thereby realizing air flow flushing of the rubber bladder, the first collection tube and the second collection tube to avoid residual atmospheric particles affecting the subsequent monitoring accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the rubber bladder installation structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the installation structure of the movable frame and the rubber bladder of the present invention;

[0028] Figure 5 This is a schematic diagram of the split structure of the negative pressure module of the present invention;

[0029] Figure 6 This is a schematic cross-sectional structural diagram of a negative pressure module of the present invention;

[0030] Figure 7 This is a schematic diagram of the connection structure between the first collection tube and the second collection tube of the present invention;

[0031] Figure 8This is a schematic diagram of the cross-sectional structure of the first collection tube and the second collection tube of the present invention;

[0032] Fig. 9 For the present invention Figure 8 The enlarged structural diagram at A in the middle;

[0033] Fig.10 For the present invention Figure 8 Enlarged structural diagram at B in the middle.

[0034] In the figure: 1. cabinet; 2. alarm; 3. external pipe; 4. bellows; 5. connecting pipe; 501. solenoid valve; 6. rotating pipe; 7. movable frame; 8. gear block; 9. lower plate seat; 10. rubber bladder; 1001. first sealing film; 11. upper plate seat; 12. motor; 13. driving gear; 14. first collection tube; 1401. positioning pin; 1402. air hole; 1403. second sealing film; 15. second collection tube; 16. guide seat; 17. movable plate; 18. air storage bag; 19. sealing bag; 20. air guide tube; 21. fixed frame; 22. guide column; 23. sliding ring; 24. slapping piece; 25. traction rope; 26. one-way air inlet pipe. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figure 1-Figure 3 and Figure 5-Figure 10 As shown, the existing atmospheric particle monitoring and early warning device has a single sampling mechanism and cannot achieve diverse atmospheric sampling. In order to solve this technical problem, this embodiment discloses the following technical content;

[0037] A modular atmospheric particle monitoring and early warning device comprises a cabinet 1, wherein a detection module is arranged on the inner side of the lower part of the cabinet 1, and an alarm 2 is fixedly installed on the outer side of the cabinet 1, an external pipe 3 is fixedly installed through the top of the cabinet 1, and a bellows 4 is fixedly installed on the lower end of the external pipe 3, and a connecting pipe 5 is fixedly connected to the lower end of the bellows 4, a rotating pipe 6 is sealed and rotatably connected to the upper end of the pipe arranged on the upper end of the detection module, and a movable frame 7 is fixedly installed on the outer side of the rotating pipe 6, a motor 12 is fixedly installed on the inner side of the upper part of the cabinet 1, and a transmission mechanism is connected between the output end of the motor 12 and the movable frame 7; a negative pressure module is arranged between the connecting pipe 5 and the movable frame 7, and the negative pressure module comprises a reciprocatingly twisted rubber capsule 10;

[0038] The upper end of the external tube 3 is fixedly connected with a collection module for realizing diversified collection of atmospheric samples, and the collection module includes a first collection tube 14 and a second collection tube 15 which are telescopically connected, and the lower end of the first collection tube 14 is fixedly connected to the upper end of the external tube 3 through a nut, and a sealing adjustment component is provided on the first collection tube 14 for adjusting the sealing between the first collection tube 14 and the second collection tube 15 to adjust the collection mode;

[0039] The transmission mechanism includes a gear block 8 evenly fixedly mounted on the outer wall of the upper annular component of the movable frame 7, and a driving gear 13 is fixedly mounted on the output end of the motor 12, and the driving gear 13 is meshedly connected with the gear block 8. At the same time, the driving gear 13 drives the movable frame 7 to reciprocate under the drive control of the motor 12.

[0040] The negative pressure module includes an upper plate seat 11 and a lower plate seat 9 which are respectively fixedly installed on the upper and lower ends of the rubber bladder 10, and the lower plate seat 9 is keyed to the upper end of the movable frame 7, and the movable frame 7 drives the lower plate seat 9 to rotate synchronously during rotation. At the same time, the left and right openings of the upper plate seat 11 are sleeved on the outside of the guide column 22. Fixed pipes are passed through the center positions of both the lower plate seat 9 and the upper plate seat 11, and the pipes on the lower plate seat 9 and the upper plate seat 11 are fixedly connected by fixing nuts, rotating tubes 6 and connecting tubes 5 respectively.

[0041] During the reciprocating rotation of the lower plate seat 9, the upper plate seat 11 is cooperated to twist and restore the rubber bladder 10. During the twisting process of the rubber bladder 10, the upper plate seat 11 is driven to slide downward on the outside of the guide column 22, and airways are respectively opened at the center positions of the upper and lower ends of the rubber bladder 10, and the two airways at the upper and lower ends of the rubber bladder 10 are respectively sealed and connected to the pipes on the upper plate seat 11 and the lower plate seat 9. At the same time, the first sealing film 1001 is sealed and fitted in the airways at the upper and lower ends of the rubber bladder 10 to form a one-way valve structure. When the rubber bladder 10 is twisted, exhaust is achieved through the airway at its lower end, and when the rubber bladder 10 is restored and expanded, air is inhaled through the airway at its upper end.

[0042] A positioning pin 1401 is elastically and telescopically connected to the upper part of the first collecting tube 14 , and a positioning groove of an annular structure is provided on the lower outer wall of the second collecting tube 15 , and the positioning pin 1401 and the positioning groove constitute a locking and limiting structure.

[0043] The sealing adjustment assembly includes a guide seat 16 fixedly installed on the inner side of the lower end of the first collection tube 14, and a movable plate 17 is slidably arranged on the inner side of the guide seat 16, and an air storage bag 18 is fixedly connected between the two ends of the movable plate 17 and the inner wall of the lower end of the guide seat 16, and the movable plate 17 moves downward and squeezes the air storage bag 18 under the action of the sampling negative pressure.

[0044] A sealing bag 19 with an annular structure is embedded and fixedly mounted on the upper inner wall of the first collection tube 14 , and the sealing bag 19 and the air storage bag 18 are connected for gas transmission via an air guide tube 20 , and the sealing bag 19 is inflated and attached to the lower outer wall of the second collection tube 15 .

[0045] The upper end of the first collection tube 14 is evenly provided with air holes 1402, and the inner wall of the upper end of the first collection tube 14 is fitted with a second sealing film 1403, and the positions of the second sealing film 1403 and the air holes 1402 correspond to each other and seal the air holes 1402. At the same time, the second sealing film 1403 will deform under the action of air pressure to release the blockage of the air holes 1402.

[0046] By adopting the above technical solution, when the equipment needs to be used, the lower plate seat 9 is keyed to the inner side of the movable frame 7, and the pipeline on the lower plate seat 9 is fixedly sealed and connected by a nut and a rotating tube 6, and then the opening on the upper plate seat 11 is sleeved on the outer side of the guide column 22, and the pipeline on the upper plate seat 11 is fixedly connected by a nut and a connecting tube 5, and then the lower end of the first collection tube 14 and the upper end of the external tube 3 are fixedly connected by a nut, and then the first collection tube 14 and the second collection tube 15 are telescopically adjusted, so that the positioning pin 1401 on the first collection tube 14 is elastically telescopically inserted into the positioning groove at the lower end of the second collection tube 15, and when it is necessary to monitor the atmospheric particles, the motor 12 is started so that the motor 1 2 drives the driving gear 13 to rotate back and forth quickly, so that the driving gear 13 and the tooth block 8 on the outer side of the movable frame 7 are meshed, and then the movable frame 7 drives the lower plate seat 9 to rotate synchronously. Since the upper plate seat 11 is limited by the guide column 22, the lower plate seat 9 and the upper plate seat 11 are axially rotated. At this time, the two can reciprocate and twist and restore the rubber capsule 10. When the rubber capsule 10 is twisted, it will exhaust through the air channel at the lower end. At this time, the first sealing film 1001 in the air channel at the lower end of the rubber capsule 10 will undergo elastic deformation, and the gas will be transported to the detection module through the rotating tube 6. When the rubber capsule 10 is restored and expanded, the gas in the rubber capsule 10 will pass through its upper end. The first sealing film 1001 in the upper airway of the rubber bladder 10 is deformed and opened. At this time, the rubber bladder 10 can extract the air in the first collection tube 14 through the external tube 3, the bellows 4, and the connecting tube 5, so that the movable plate 17 on the inner side of the lower end of the first collection tube 14 moves down along the guide seat 16 under the action of wind pressure, thereby squeezing the air storage bag 18, so that the gas in the air storage bag 18 enters the sealing bag 19 through the air guide pipe 20, so that the annular sealing bag 19 expands and deforms. The expanded sealing bag 19 fits the upper inner wall of the first collection tube 14 and the lower inner wall of the second collection tube 15, thereby achieving the sealing of the connection between the two. At this time, the atmospheric sample only passes through the second collection tube 1 5. When it is necessary to extract atmospheric samples at different heights at the same time, the rotation speed of the driving gear 13 is reduced, so that the twisting speed of the rubber bladder 10 is reduced, thereby reducing the air suction rate of the rubber bladder 10, and further reducing the wind pressure on the movable plate 17. At this time, the sealing bag 19 does not expand, so that there is a gap between the upper part of the first collection tube 14 and the lower part of the second collection tube 15. At the same time, the second sealing film 1403 on the upper part of the first collection tube 14 will be elastically deformed under the action of air pressure, so that the air hole 1402 is opened. At this time, the equipment simultaneously intakes air through the air hole 1402 and the upper end of the second collection tube 15, so as to realize the collection of atmospheric particulate matter at different heights and achieve a diversified sampling effect.

[0047] Embodiment 2: The technical content disclosed in this embodiment is a further improvement on the above embodiment 1. In the use of the existing atmospheric particle monitoring and early warning device, it is inconvenient to clean the atmospheric particles remaining on the inner side of the pipe, which easily affects the subsequent monitoring accuracy. In order to further solve this technical problem, this embodiment discloses the following technical content, such as Figure 2-Figure 7 As shown;

[0048] A fixing frame 21 is symmetrically fixedly mounted on the upper inner wall of the cabinet 1 , and a guide column 22 is vertically fixedly mounted on the upper surface of the fixing frame 21 . A striking component is also provided on the fixing frame 21 to achieve striking and vibration of the rubber bladder 10 .

[0049] The slapping assembly includes a sliding ring 23 sleeved on the outside of the guide column 22, and a spring is connected between the sliding ring 23 and the fixing frame 21, and the sliding ring 23 is located below the upper plate seat 11, and a slapping member 24 is elastically rotatably installed below the fixing frame 21, and a traction rope 25 is wound around the shaft of the slapping member 24, and the upper end of the traction rope 25 is fixedly connected to the outside of the sliding ring 23, and at the same time, the traction rope 25 pulls the slapping member 24 to rotate elastically during the upward movement of the sliding ring 23 to slap the rubber capsule 10;

[0050] A partition is arranged between the upper and lower parts of the cabinet 1, and a one-way air inlet pipe 26 is symmetrically fixedly installed on the partition, and a filter is arranged on the one-way air inlet pipe 26. At the same time, the cabinet door on the upper part of the cabinet 1 remains sealed after closing, and an electromagnetic valve 501 is arranged on the connecting pipe 5. At the same time, when the rubber bag 10 is twisted, the one-way air inlet pipe 26 automatically extracts hot air near the detection module.

[0051] By adopting the above technical solution, when the rubber bladder 10 is installed, the cabinet door of the cabinet 1 is closed so that the upper part of the cabinet 1 remains sealed, and then the rubber bladder 10 is controlled to twist and restore back and forth. When the rubber bladder 10 is twisted, the air pressure inside the upper part of the cabinet 1 is reduced, so that the one-way air inlet pipe 26 can draw the filtered gas into the upper part of the cabinet 1, so that the air pressure inside the upper part of the cabinet 1 is increased, and then the solenoid valve 501 is controlled to open, so that the gas inside the cabinet 1 can be discharged, thereby realizing the pre-replacement and cleaning of the air inside the cabinet 1. In the subsequent monitoring process, the rubber bladder 10 is controlled to twist and restore, so that the cabinet 1 again filters and extracts the hot air near the detection module through the one-way air inlet pipe 26. At the same time, during the twisting process of the rubber bladder 10, it will drive the upper plate seat 11 along the guide column 2 2 slides down, thereby pushing the sliding ring 23 to move down synchronously. At this time, the traction rope 25 is relaxed, and the slapping piece 24 will elastically rotate away from the rubber sac 10. When the rubber sac 10 recovers, the sliding ring 23 will elastically move up under the action of the spring, so that the sliding ring 23 will pull the slapping piece 24 through the traction rope 25 to rotate elastically, so that the slapping piece 24 knocks the side wall of the rubber sac 10, thereby knocking and vibrating the rubber sac 10, and causing the residual particles attached to the inner wall of the rubber sac 10 to fall off and be discharged. After the monitoring is completed, the solenoid valve 501 is opened, so that the clean air sucked into the inner side of the cabinet 1 will enter the connecting pipe 5 through the solenoid valve 501, thereby realizing the air flushing of the rubber sac 10, the first collection pipe 14 and the second collection pipe 15, and avoiding the residual particles from affecting the accuracy of the next monitoring.

[0052] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0053] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A modular atmospheric particle monitoring and early warning device, comprising a cabinet (1), wherein a detection module is arranged on the inner side of the lower part of the cabinet (1), and an alarm (2) is fixedly installed on the outer side of the cabinet (1), characterized in that: An external pipe (3) is fixedly installed through the top of the cabinet (1), and a bellows (4) is fixedly installed at the lower end of the external pipe (3), and a connecting pipe (5) is fixedly connected to the lower end of the bellows (4); the upper end of the pipeline arranged at the upper end of the detection module is sealed and rotatably connected to a rotating pipe (6), and a movable frame (7) is fixedly installed on the outer side of the rotating pipe (6); a motor (12) is fixedly installed on the inner side of the upper part of the cabinet (1), and a transmission mechanism is connected between the output end of the motor (12) and the movable frame (7); A negative pressure module is arranged between the connecting tube (5) and the movable frame (7), and the negative pressure module includes a reciprocatingly twisted rubber sac (10), and the negative pressure module also includes an upper plate seat (11) and a lower plate seat (9) respectively fixedly mounted on the upper and lower ends of the rubber sac (10), and the lower plate seat (9) is key-connected to the upper end of the movable frame (7), and the movable frame (7) drives the lower plate seat (9) to rotate synchronously during rotation, and at the same time, the left and right openings of the upper plate seat (11) are sleeved on the outer side of the guide column (22), and the central positions of the lower plate seat (9) and the upper plate seat (11) are penetrated by a fixedly arranged pipeline, and the pipelines on the lower plate seat (9) and the upper plate seat (11) are respectively connected by a fixing nut and a rotating tube (6) and a coupling. The connecting pipe (5) is fixedly connected, and the lower plate seat (9) cooperates with the upper plate seat (11) to twist and restore the rubber bladder (10) during the reciprocating rotation. During the twisting of the rubber bladder (10), the upper plate seat (11) is driven to slide downward on the outside of the guide column (22), and the pipes on the upper plate seat (11) and the lower plate seat (9) are respectively sealed and connected to the air passages respectively opened at the center positions of the upper and lower ends of the rubber bladder (10). At the same time, the air passages at the upper and lower ends of the rubber bladder (10) are sealed and fitted with a first sealing film (1001) to form a one-way valve structure. When the rubber bladder (10) is twisted, exhaust is achieved through the air passage at its lower end, and when the rubber bladder (10) is restored and expanded, air is achieved through the air passage at its upper end. The upper end of the external tube (3) is fixedly connected to a collection module for realizing diversified collection of atmospheric samples, and the collection module comprises a first collection tube (14) and a second collection tube (15) which are telescopically connected, and the lower end of the first collection tube (14) is fixedly connected to the upper end of the external tube (3) through a nut, and a sealing adjustment component is provided on the first collection tube (14) for adjusting the sealing between the first collection tube (14) and the second collection tube (15) to adjust the collection mode, and the sealing adjustment component comprises a guide seat (16) fixedly installed on the inner side of the lower end of the first collection tube (14), and a movable plate (17) is slidably provided on the inner side of the guide seat (16), and an air storage bag (18) is fixedly connected between the two ends of the movable plate (17) and the inner wall of the lower end of the guide seat (16), and the movable plate (17) Under the action of the sampling negative pressure, the first collection tube (14) moves downward and squeezes the air storage bag (18); the upper inner wall of the first collection tube (14) is embedded with a sealing bag (19) fixedly installed with a ring structure, and the sealing bag (19) and the air storage bag (18) are connected for gas transmission through an air guide tube (20), and the sealing bag (19) is inflated and fits against the lower outer wall of the second collection tube (15); the upper end of the first collection tube (14) is evenly provided with air holes (1402), and the upper inner wall of the first collection tube (14) is fitted with a second sealing film (1403), and the positions of the second sealing film (1403) and the air holes (1402) correspond to each other and achieve the blocking of the air holes (1402), and the second sealing film (1403) will deform under the action of air pressure to release the blocking of the air holes (1402).

2. A modular atmospheric particle monitoring and early warning device according to claim 1, characterized in that: The transmission mechanism comprises a tooth block (8) evenly fixedly mounted on the outer wall of the upper annular component of the movable frame (7), and a driving gear (13) is fixedly mounted on the output end of the motor (12), and the driving gear (13) and the tooth block (8) are meshingly connected, and the driving gear (13) drives the movable frame (7) to reciprocate under the driving control of the motor (12).

3. A modular atmospheric particle monitoring and early warning device according to claim 1, characterized in that: A positioning pin (1401) is elastically and telescopically connected to the upper portion of the first collection tube (14), and a positioning groove of an annular structure is provided on the lower outer wall of the second collection tube (15), and the positioning pin (1401) and the positioning groove constitute a locking and limiting structure.

4. A modular atmospheric particle monitoring and early warning device according to claim 1, characterized in that: A fixing frame (21) is symmetrically fixedly mounted on the upper inner wall of the cabinet (1), and a guide column (22) is vertically fixedly mounted on the upper surface of the fixing frame (21). A striking component is also provided on the fixing frame (21) for striking and vibrating the rubber bladder (10).

5. A modular atmospheric particle monitoring and early warning device according to claim 4, characterized in that: The striking assembly comprises a sliding ring (23) sleeved on the outside of the guide column (22), a spring being connected between the sliding ring (23) and the fixing frame (21), and the sliding ring (23) being located below the upper plate seat (11), a striking member (24) being elastically rotatably mounted below the fixing frame (21), a traction rope (25) being wound around the shaft of the striking member (24), and an upper end of the traction rope (25) being fixedly connected to the outside of the sliding ring (23), and when the sliding ring (23) moves upward, the traction rope (25) pulls the striking member (24) to rotate elastically, so as to strike the rubber bag (10).

6. A modular atmospheric particle monitoring and early warning device according to claim 1, characterized in that: A partition is provided between the upper and lower parts of the cabinet (1), and a one-way air inlet pipe (26) is symmetrically fixedly mounted on the partition, and a filter is provided on the one-way air inlet pipe (26), and a cabinet door on the upper part of the cabinet (1) is kept sealed after closing, and a solenoid valve (501) is provided on the connecting pipe (5), and when the rubber bag (10) is twisted, the one-way air inlet pipe (26) automatically extracts hot air near the detection module.

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