Bioaerosol monitoring and alarming equipment

Abstract

The utility model relates to the technical field of aerosol monitoring, in particular to a biological aerosol monitoring alarm device which comprises a device body, an air inlet pipe, an air outlet pipe, a dustproof assembly and a supporting assembly, the air inlet pipe and the air outlet pipe are connected to the front end and the rear end of the device body respectively, and the lower end face of the device body is used for being connected with the supporting assembly. The air inlet pipe is used for being connected with a dustproof assembly, the dustproof assembly comprises a protection assembly and a filtering assembly, the protection assembly is connected to the air inlet pipe, and the filtering assembly is connected to the protection assembly. In the utility model, the support assembly is unfolded to increase the distance between the equipment main body and the ground in the use state, thereby preventing the aerosol detection precision of the equipment main body from being influenced by the air inlet pipe on the equipment main body too close to the ground or too low height of the equipment main body; the filtering assembly filters dust in the air in the using state to prevent the aerosol detection precision from being affected by too much dust.

Description

Technical Field

[0001] The utility model relates to the technical field of aerosol monitoring, in particular to a bioaerosol monitoring alarm device. Background Art

[0002] Aerosols are gaseous dispersions composed of solid or liquid particles suspended in a gaseous medium. Aerosol particles can affect weather and climate in two ways: on the one hand, they reflect sunlight into space, cooling the atmosphere and reducing visibility. On the other hand, they scatter, diffuse, and absorb some solar radiation, reducing the escape of long-wave radiation from the ground and causing atmospheric warming. Aerosols also affect the human respiratory system, necessitating monitoring of aerosol concentrations.

[0003] A search revealed Chinese patent publication number CN214668408U, which discloses a portable bioaerosol monitoring and alarm device. The device comprises a housing, an air inlet pipe, an air outlet pipe, an air pump, and a circuit detection system. The circuit detection system includes a main control circuit unit, a laser detection unit, an air path system, an alarm display unit, and a host computer, as well as a power supply system for the main control circuit unit. The air inlet pipe, air pump, laser detection unit, and air outlet pipe are sequentially connected, with the air inlet and outlet pipes positioned on the outer wall of the housing, and the air pump and laser detection unit positioned within the housing. This device is compact, lightweight, easy to carry, and convenient to operate. It features an audible and visual alarm function, a built-in rechargeable battery, and self-test and automatic background update capabilities. It is used to monitor harmful microorganisms in the environment, emitting an audible and visual alarm when the bioaerosol concentration exceeds the monitoring lower limit. It can communicate with the outside world via a data interface.

[0004] However, in the above technical solution, air is only transported in and out through the air inlet and outlet pipes at the front and rear ends of the shell. When the detection equipment is in an outdoor environment, the height of the shell is relatively low, and there is a lot of dust in the outdoor environment, which makes it easy for the air pump to suck the dust into the air inlet pipe. After the dust is sucked into the air pump, it will interfere with the detection results and accuracy, resulting in a decrease in detection sensitivity and inaccurate detection results. Utility Model Content

[0005] The purpose of the utility model is to address the problems existing in the background technology and to provide a bioaerosol monitoring and alarm device.

[0006] The technical solution of the utility model is as follows: a bioaerosol monitoring and alarm device comprises a device main body, and dust-proof components for an air inlet pipe and an air outlet pipe are respectively connected to the front and rear side walls of the device main body, which are detachably connected to the air inlet pipe, and the dust-proof component comprises a protective component and a filter component, and the protective component is detachably connected to the air inlet pipe; the protective component seals the air inlet pipe to form an enclosed space when in use; the filter component is detachably connected to the protective component, and filters dust in the air when the protective component is in use to prevent excessive dust from affecting the accuracy of aerosol detection; a support component is connected to the device main body, and increases the distance between the device main body and the ground when the support component is in use.

[0007] Preferably, the protective assembly includes a dustproof cylinder, which is threadedly connected to the air inlet pipe; a dustproof cover, which is connected to one end of the dustproof cylinder away from the air inlet pipe, and the dustproof cover is rotatably connected to the dustproof cylinder.

[0008] Preferably, the dustproof cylinder is composed of a plurality of identical fixed cylinders, and the fixed cylinders are detachably connected to each other via threads.

[0009] Preferably, one end of the dust cover is connected to a support shaft, which is rotatably connected to a groove provided on the dust tube. One end of the dust cover is connected to a magnetic part, which is magnetically connected to a metal part on the dust tube.

[0010] Preferably, an anti-slip ring is provided on the outer side of the support shaft.

[0011] Preferably, the filter assembly includes a filter cartridge with a filter screen connected to its inner wall; a plurality of dovetail blocks distributed around the circumference, the dovetail blocks being connected to the outer circumferential wall of the filter cartridge, and the dovetail blocks being slidably connected to the dovetail grooves provided on the inner circumferential wall of the dustproof cartridge.

[0012] Preferably, the support assembly includes two rotating frames, which are symmetrically arranged and rotatably connected to symmetrically arranged receiving grooves opened on the equipment body; and extension assemblies, which are symmetrically arranged at both ends of the rotating frame and extend the width of the rotating frame when the extension assembly is in use.

[0013] Preferably, the extension component includes a moving rod, which is slidably connected in the sliding grooves opened at both ends of the rotating frame; a pull rod, the number of which is affected by the moving rod, the pull rod is connected to the side wall of the moving rod, and the pull rod is slidably connected to the moving groove opened on the side wall of the sliding groove; an elastic member, the two ends of which are respectively connected to the moving rod and the inner wall of the sliding groove.

[0014] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0015] In the utility model, the support component is unfolded when in use to increase the distance between the device body and the ground, preventing the air intake pipe on the device body from being too close to the ground or the height of the device body from being too low, which affects the accuracy of the device body in detecting aerosols. The protective component is used to seal the air intake pipe to form an enclosed space to prevent external dust from entering the device body through the air intake pipe and causing damage to the device. The filter component is used to filter dust in the air to prevent excessive dust from affecting the accuracy of aerosol detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram from above;

[0018] Figure 3 for Figure 1 A cross-sectional schematic diagram;

[0019] Figure 4 This is a cross-sectional exploded view of the dustproof cylinder;

[0020] Figure 5 Schematic diagram of the turret cross section.

[0021] Figure numerals: 1. Equipment body; 2. Air inlet pipe; 3. Air outlet pipe; 4. Dustproof cylinder; 5. Dust cover; 6. Fixed cylinder; 7. Support shaft; 8. Magnetic part; 9. Metal part; 10. Anti-slip ring; 11. Filter cylinder; 12. Filter net; 13. Dovetail block; 14. Dovetail groove; 15. Rotating frame; 16. Moving rod; 17. Pull rod; 18. Elastic part. DETAILED DESCRIPTION

[0022] Example 1

[0023] like Figure 1-Figure 5As shown, the utility model proposes a bioaerosol monitoring and alarm device, including a device body 1, an air inlet pipe 2, an air outlet pipe 3, a dustproof component and a support component, the air inlet pipe 2 and the air outlet pipe 3 are respectively connected to the air inlet and air outlet at the front and rear ends of the device body 1; the upper end face of the device body 1 is connected with a handle; the lower end face of the device body 1 is used to connect the support component; the support component is unfolded when in use to increase the distance between the device body 1 and the ground, to prevent the accuracy of the device body 1 detecting aerosols from being affected by being close to the ground or the height of the device body 1 being too low; the air inlet pipe 2 is used to connect the dustproof component, the dustproof component includes a protective component and a filter component, and the protective component is detachably connected to the air inlet pipe 2; when the protective component is in use, the air inlet pipe 2 is sealed to form an enclosed space to prevent external dust from entering the device body 1 through the air inlet pipe 2 and causing damage to the equipment; the filter component is detachably connected to the protective component; when the filter component is in use, it filters dust in the air to prevent excessive dust from affecting the aerosol detection accuracy.

[0024] Example 2

[0025] like Figure 2-Figure 4 As shown, the present invention proposes a bioaerosol monitoring and alarm device. Compared with the first embodiment, this embodiment records the detailed structure of the protection component. The protection component includes a dustproof cylinder 4 and a dustproof cover 5. The dustproof cylinder 4 is detachably connected to the air inlet pipe 2 through a thread.

[0026] In an optional embodiment, the dustproof cylinder 4 is composed of a plurality of identical fixed cylinders 6, which are detachably connected by threads; increasing the number of fixed cylinders 6 increases the number of filter components and enhances the filtering effect;

[0027] The dust cover 5 is rotatably connected to the dust cylinder 4 , and the dust cover 5 and the dust cylinder 4 are in close contact with each other.

[0028] In an optional embodiment, one end of the dust cover 5 is connected to a support shaft 7, and the support shaft 7 is rotatably connected to a groove opened on the dust tube 4. One end of the dust cover 5 is connected to a magnetic part 8; the magnetic part 8 is selected from but not limited to a permanent magnet; the magnetic part 8 is magnetically connected to a metal part 9 on the dust tube 4; the metal part 9 is selected from but not limited to an iron block.

[0029] In an optional embodiment, an anti-slip ring 10 is provided on the outer side of the support shaft 7; the anti-slip ring 10 is a rubber ring to enhance the friction with the support shaft 7 and prevent it from rotating at will.

[0030] Example 3

[0031] like Figure 4As shown, the present invention proposes a bioaerosol monitoring and alarm device. Compared with the second embodiment, the present embodiment records the detailed structure of the filter component. The filter component includes a filter cartridge 11, a filter screen 12 and a dovetail block 13. The inner wall of the filter cartridge 11 is used to connect the filter screen 12. The dovetail blocks 13 distributed in a circle with the central axis of the filter cartridge 11 as the center are connected to the outer wall of the filter cartridge 11. The dovetail blocks 13 are slidably connected to the dovetail grooves 14 opened on the inner wall of the fixed cylinder 6. The number of the dovetail grooves 14 corresponds to the number of the dovetail blocks 13.

[0032] Example 4

[0033] like Figure 2 、 Figure 5 As shown, the present invention proposes a bioaerosol monitoring and alarm device. Compared with the third embodiment, the present embodiment records the detailed structure of the support assembly. The support assembly includes a rotating frame 15 and an extension assembly. The lower end surface of the device body 1 is used to open a symmetrically arranged receiving groove, and the shape of the receiving groove fits the shape of the rotating frame 15; the rotating frame 15 is U-shaped; the rotating frame 15 is rotatably connected to the receiving groove through a pin shaft, and the extension assembly is slidably connected to both ends of the rotating frame 15; when the extension assembly is in use, the width of the rotating frame 15 is increased to increase its contact area with the ground.

[0034] The extension assembly includes a moving rod 16, a pull rod 17 and an elastic member 18. Sliding grooves for accommodating the moving rod 16 are provided at both ends of the rotating frame 15, and the two ends of the elastic member 18 are respectively connected to the inner wall of the sliding groove and one end of the moving rod 16; the elastic member 18 is selected from but not limited to a spring; the pull rod 17 passes through the side wall of the rotating frame 15 and is connected to the outer wall of the moving rod 16, and a moving groove for the pull rod 17 to slide is provided on the rotating frame 15.

[0035] In summary, when the present invention is used, the handle on the device body 1 is pulled to move the device body 1 to the test site. When the device body 1 is outdoors or in an environment with poor ground conditions, the rotating frame 15 is pulled, and the rotating frame 15 rotates into an eight-shaped shape in the receiving groove to support the device body 1 to a certain height to prevent the dust on the ground from affecting its detection results. At the same time, when the rotating frame 15 is rotated out, the moving rod 16 in the rotating frame 15 moves synchronously, and the elastic member 18 automatically rebounds to push the moving rod 16 out of the sliding groove on the rotating frame 15. The moving rod 16 increases the contact area between the rotating frame 15 and the ground to prevent it from tipping over and tilting. When gluing, start the device main body 1 to allow the external gas to enter the device main body 1 from the air inlet pipe 2 for testing. When the test is qualified, it is discharged normally through the air outlet pipe 3. When the test is unqualified, an alarm is sounded through the buzzer on the device main body 1. When air is taken in by the air inlet pipe 2, first rotate the dust cover 5 to keep it away from the dust cylinder 4. The dust cover 5 rotates with the support shaft 7 as the center of the circle. The anti-slip ring 10 on the outside of the support shaft 7 can prevent the dust cover 5 from automatically resetting. The gas enters the dust cylinder 4 formed by multiple fixed cylinders 6. According to different needs, fixed cylinders 6 and filters 12 can be added to enhance the filtering effect. The gas is filtered by the filter 12 to remove dust and then enters the device main body 1 for testing.

[0036] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A bioaerosol monitoring and alarm device, characterized in that: include The device body (1) has an air inlet pipe (2) and an air outlet pipe (3) connected to the front and rear side walls of the device body (1) respectively; A dustproof component is detachably connected to the air intake pipe (2), and includes a protective component and a filter component. The protective component is detachably connected to the air intake pipe (2); when the protective component is in use, the air intake pipe (2) is sealed to form a closed space; the filter component is detachably connected to the protective component, and when the filter component is in use, it filters dust in the air to prevent excessive dust from affecting the accuracy of aerosol detection; The support component is connected to the device body (1), and when the support component is in use, it increases the distance between the device body (1) and the ground.

2. A bioaerosol monitoring and alarm device according to claim 1, characterized in that: Protection components include A dustproof cylinder (4) is threadedly connected to the air inlet pipe (2); The dust cover (5) is connected to one end of the dust cover cylinder (4) away from the air inlet pipe (2), and the dust cover (5) is rotatably connected to the dust cover cylinder (4).

3. The bioaerosol monitoring and alarm device according to claim 2, characterized in that: The dustproof cylinder (4) is composed of a plurality of identical fixing cylinders (6), and the fixing cylinders (6) are detachably connected to each other via threads.

4. The bioaerosol monitoring and alarm device according to claim 2, characterized in that: One end of the dust cover (5) is connected to a support shaft (7), which is rotatably connected to a groove provided on the dust cover cylinder (4). One end of the dust cover (5) is connected to a magnetic member (8), which is magnetically connected to a metal member (9) on the dust cover cylinder (4).

5. The bioaerosol monitoring and alarm device according to claim 4, characterized in that: The outer side of the support shaft (7) is sleeved with an anti-slip ring (10).

6. The bioaerosol monitoring and alarm device according to claim 2, characterized in that: Filter components include A filter cartridge (11) having an inner sidewall connected to a filter screen (12); A plurality of dovetail blocks (13) are distributed around the circumference. The dovetail blocks (13) are connected to the outer peripheral wall of the filter cylinder (11). The dovetail blocks (13) are slidably connected to dovetail grooves (14) provided on the inner peripheral wall of the dustproof cylinder (4).

7. The bioaerosol monitoring and alarm device according to claim 1, characterized in that: Support components include Two rotating racks (15) are symmetrically arranged, and the rotating racks (15) are rotatably connected to symmetrically arranged receiving grooves opened on the device body (1); The extension components are symmetrically arranged at both ends of the rotating frame (15), and the extension components extend the width of the rotating frame (15) when in use.

8. The bioaerosol monitoring and alarm device according to claim 7, characterized in that: Extension kit includes A moving rod (16) is slidably connected to a sliding groove provided at both ends of the rotating frame (15); The number of the pull rods (17) is affected by the moving rods (16), the pull rods (17) are connected to the side wall of the moving rod (16), and the pull rods (17) are slidably connected to the moving grooves provided on the side walls of the sliding grooves; The elastic member (18) has two ends connected to the moving rod (16) and the inner wall of the sliding groove respectively.

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