Aerosol sampler inspiration filtering device

Abstract

The utility model discloses an aerosol sampler inspiration filtering device, which comprises a biological aerosol filtering structure, an equipment box and a lower shell, the equipment box is fixedly arranged on the side wall of the top of the lower shell, the biological aerosol filtering structure is arranged at the top of the equipment box, and a clamping groove is arranged at the top of the equipment box. The biological aerosol filtering structure comprises an upper shell, a clamping block, an air guide plate, a first mounting block, a first mounting groove, a second mounting groove, an air guide pipe and a second mounting block, the clamping block is fixedly mounted at the bottom of the upper shell, and the air guide plate is mounted in the center of the interior of the upper shell. According to the device, a biological aerosol filter structure and a second filter screen are designed on the air suction filter device of the biological aerosol sampler, so that impurities contained in the biological aerosol can be reduced while the biological aerosol is collected, and the accuracy of the subsequent biological aerosol after detection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air samplers, in particular to an air suction filter device of an aerosol sampler. Background Art

[0002] For application number 202010326565.4, named "A microbial aerosol sampler", a microbial aerosol sampler with large flow rate, which can be used under low and high temperature conditions and has little impact on microorganisms has been developed. It has the advantages of large flow rate and little impact on microorganisms, but because the equipment does not have a certain filtering effect during use, the collected bioaerosol has certain impurities, such as dust, etc., and the staff will subsequently have to separate the bioaerosol. If no separation is performed, the accuracy of the bioaerosol detection may be reduced.

[0003] Therefore, in response to the above problems, we propose an aerosol sampler air filter device to solve the above problems. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In order to solve the technical problems existing in the background technology, the utility model proposes an aerosol sampler air filter device. The device has a simple structure and a novel design. By designing a bioaerosol filtration structure and a second filter on the bioaerosol sampler air filter device, the bioaerosol can be collected while reducing the impurities contained in the bioaerosol, thereby improving the accuracy of subsequent bioaerosol detection. Therefore, the device is suitable for wide promotion.

[0006] (II) Technical solution

[0007] The utility model provides an aerosol sampler air intake filter device, comprising a bioaerosol filtering structure, an equipment box and a lower shell, wherein the equipment box is fixedly mounted on the top side wall of the lower shell, the bioaerosol filtering structure is located at the top of the equipment box, a card slot is provided on the top of the equipment box, the bioaerosol filtering structure comprises an upper shell, a card block, an air guide plate, a first mounting block, a first mounting slot, a second mounting slot, an air guide duct and a second mounting block, wherein the card block is fixedly mounted on the bottom of the upper shell, the air guide plate is mounted at the inner center of the upper shell, the first mounting slot and the second mounting slot are respectively opened on the top side wall and the bottom side wall of the air guide plate and the two are of the same size, the first mounting block is carded inside the first mounting slot, the second mounting block is carded inside the second mounting slot, the air guide duct is located inside the air guide plate and the two ends of the air guide duct are respectively connected to the first mounting slot and the second mounting slot.

[0008] Preferably, the first mounting block and the second mounting block are of the same size, are rectangular frames and are made of rubber, the size of the first mounting block is slightly larger than the first mounting groove, and the four groups of side walls of the first mounting block and the second mounting block are all installed with the second filter screen, the first mounting groove and the second mounting groove are vertically distributed up and down, and the first mounting block and the second mounting block are used to collect dust on the surface of the second filter screen.

[0009] Preferably, the number of the air guide ducts is four groups, and the air guide ducts are semicircular in shape as a whole. The air guide ducts connect the first mounting groove and the second mounting groove to form an air duct.

[0010] Preferably, the sizes of the card block and the card slot are adapted to each other, the card block and the card slot are both rectangular, the upper shell is fixedly connected to the equipment box through the card block and the card slot, and the card block and the card slot facilitate the installation and disassembly of the bioaerosol filtering structure.

[0011] Preferably, an equipment slot is provided on the upper surface of the equipment box inside the card slot, a fan is installed inside the equipment slot, connecting pipes are fixed on both sides of the fan, and air outlets are provided on the outer walls on both sides of the equipment box close to the connecting pipes, the air outlets are connected to the connecting pipes, and the air outlets and the connecting pipes play a role in circulating the gas inside the fan with the outside world.

[0012] Preferably, a frame is provided between the equipment box and the upper shell, a sealing strip is installed at the bottom of the frame, a first filter is installed inside the frame, and a sealing groove matched with the sealing strip is opened on the top of the equipment box. The sealing strip can reduce the leakage of gas flowing through the first filter and is also used for the installation of the first filter.

[0013] Preferably, a switch is fixedly mounted on the front side wall of the lower shell, indicator lights are mounted on both sides of the switch, a communication interface is provided on the front side wall of the lower shell at the lower end of the switch, a charging interface is provided at the lower end of the communication interface, a battery is contained in the charging interface, a control module is installed inside the lower shell, the communication interface and the charging interface are respectively used for external control and power replenishment of the device, and the switch, indicator light and fan are electrically connected through the control module.

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

[0015] The device can filter the collected bioaerosols, reduce the content of impurities in microorganisms, and improve the detection accuracy of subsequent microorganisms after subsequent cultivation and detection by designing a bioaerosol filtering structure composed of an upper shell, a card block, an air guide plate, a first mounting block, a first mounting groove, a second mounting groove, an air guide pipe, a second mounting block and a first filter screen on the bioaerosol sampler air suction filter device.

[0016] In summary, by designing a bioaerosol filtration structure and a second filter on the bioaerosol sampler air filter device, the bioaerosol can be collected while reducing the impurities contained in the bioaerosol, thereby improving the accuracy of subsequent bioaerosol detection. Therefore, the device is suitable for wide promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the overall structure of the aerosol sampler air suction filter device.

[0018] Figure 2 This is a schematic diagram of the internal structure of the equipment box of the aerosol sampler air suction filter device proposed by the utility model.

[0019] Figure 3 This is a schematic diagram of the bioaerosol filtration structure of the aerosol sampler air suction filtration device proposed by the utility model.

[0020] Figure 4 This is a schematic diagram of the separation structure of the bioaerosol filtration structure of the aerosol sampler air suction filtration device proposed by the utility model.

[0021] Figure 5 This is a schematic diagram of the internal structure of the air guide plate of the aerosol sampler air suction filter device proposed by the utility model.

[0022] Figure 6 This is a schematic diagram of the first filter structure of the aerosol sampler air filter device proposed in the utility model.

[0023] Attached figure numbers: 1. Bioaerosol filtering structure; 101. Upper shell; 102. Card block; 103. Air guide plate; 104. First mounting block; 105. First mounting slot; 106. Second mounting slot; 107. Air guide duct; 108. Second mounting block; 109. Second filter; 2. Equipment box; 3. Card slot; 4. Equipment slot; 5. Fan; 6. Connecting pipe; 7. Air outlet; 8. Frame; 9. First filter; 10. Sealing strip; 11. Lower shell; 12. Switch; 13. Indicator light; 14. Communication interface; 15. Charging interface. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0025] Embodiment 1:

[0026] like Figure 1-6 As shown, the aerosol sampler air filter device proposed in the utility model includes a bioaerosol filtering structure 1, an equipment box 2 and a lower shell 11, the equipment box 2 is fixedly installed on the top side wall of the lower shell 11, the bioaerosol filtering structure 1 is located at the top of the equipment box 2, and a card slot 3 is opened on the top of the equipment box 2. The bioaerosol filtering structure 1 includes an upper shell 101, a card block 102, an air guide plate 103, a first mounting block 104, a first mounting slot 105, a second mounting slot 106, an air guide pipe 107 and a second mounting slot 108. The mounting block 108, wherein the clamping block 102 is fixedly mounted on the bottom of the upper shell 101, the air guide plate 103 is mounted at the center of the upper shell 101, the first mounting groove 105 and the second mounting groove 106 are respectively opened on the top side wall and the bottom side wall of the air guide plate 103 and the two are of the same size, the first mounting block 104 is clamped in the first mounting groove 105, the second mounting block 108 is clamped in the second mounting groove 106, the air guide duct 107 is located in the air guide plate 103 and the two ends of the air guide duct 107 are respectively connected to the first mounting groove 105 and the second mounting groove 106 are respectively connected to the second mounting groove 106. The first mounting groove 105 and the second mounting groove 106, the first mounting block 104 and the second mounting block 108 are of the same size, the first mounting block 104 and the second mounting block 108 are rectangular frames and made of rubber, the size of the first mounting block 104 is slightly larger than the first mounting groove 105, the first mounting block 104 and the second mounting block 108 are all equipped with a second filter screen 109, the first mounting groove 105 and the second mounting groove 106 are vertically distributed up and down, the first mounting block 104 and the second mounting block 108 are It is used to collect dust on the surface of the second filter screen 109; there are four groups of air ducts 107, which are semicircular in shape as a whole. The air ducts 107 connect the first mounting slot 105 and the second mounting slot 106 to form an air duct; the sizes of the block 102 and the slot 3 are adapted to each other, and the block 102 and the slot 3 are both rectangular. The upper shell 101 is fixedly connected to the equipment box 2 through the block 102 and the slot 3, and the block 102 and the slot 3 facilitate the installation and disassembly of the bioaerosol filtering structure 1.

[0027] Embodiment 2:

[0028] like Figure 2As shown, on the basis of the first embodiment, an equipment slot 4 is provided on the upper surface of the equipment box 2 inside the card slot 3, a fan 5 is installed inside the equipment slot 4, connecting pipes 6 are fixed on both sides of the fan 5, and air outlets 7 are provided on the outer walls of the equipment box 2 on both sides close to the connecting pipes 6, and the air outlets 7 are connected to the connecting pipes 6, and the air outlets 7 and the connecting pipes 6 play a role in circulating the gas inside the fan 5 and the outside; a frame 8 is provided between the equipment box 2 and the upper shell 101, a sealing strip 10 is installed at the bottom of the frame 8, a first filter screen 9 is installed inside the frame 8, and a sealing groove adapted to the sealing strip 10 is provided on the top of the equipment box 2, and the sealing strip 10 It can reduce the leakage of gas flowing through the first filter 9, and is also used for the installation of the first filter 9; a switch 12 is fixedly installed on the front side wall of the lower shell 11, and indicator lights 13 are installed on both sides of the switch 12. A communication interface 14 is opened on the front side wall of the lower shell 11 at the lower end of the switch 12, and a charging interface 15 is opened at the lower end of the communication interface 14. The charging interface 15 contains a battery. A control module is installed inside the lower shell 11. The communication interface 14 and the charging interface 15 are respectively used for external control and power replenishment of the device. The switch 12, the indicator light 13 and the fan 5 are all electrically connected through the control module.

[0029] In the utility model, when the switch 12 is in the stop position, the two indicator lights 13 are off, and the aerosol sampler does not work at this time. When the switch 12 is in the position where the battery and the control circuit board are powered on, the two indicator lights 13 are on, indicating that the power-on is completed. Then the switch 12 is adjusted to the working position, and the fan 5 is powered on and starts to work. The fan 5 draws the outside air into the upper shell 101 through the first installation groove 105, the second installation groove 106 and the air guide 107 of the gas channel on the upper shell 101. Before the outside air enters the upper shell 101, it will first pass through the second filter 109. Most of the impurities in the bioaerosol will be captured by the second filter 109, and the remaining bioaerosols will pass through the second filter 109 to reach the first filter 9 to complete the capture, thereby completing the capture of bioaerosol particles. This capture method can reduce impurities such as dust contained in bioaerosol particles, and the fan 5 is used to extract the outside air through the first filter 9 and the second filter 109 to capture and sample the bioaerosol particles. The flow rate is large, which can shorten the time required for sampling.

[0030] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. An aerosol sampler air filter device, comprising a bioaerosol filter structure (1), an equipment box (2) and a lower shell (11), characterized in that: The device box (2) is fixedly mounted on the top side wall of the lower shell (11); the bioaerosol filtering structure (1) is located at the top of the device box (2); a card slot (3) is provided on the top of the device box (2); the bioaerosol filtering structure (1) comprises an upper shell (101), a card block (102), an air guide plate (103), a first mounting block (104), a first mounting slot (105), a second mounting slot (106), an air guide pipe (107) and a second mounting block (108); wherein the card block (102) is fixedly mounted on the bottom of the upper shell (101); the air guide plate (103) is mounted at the inner center of the upper shell (101); the first mounting slot (105) and the second mounting slot (106) are respectively provided on the top side wall and the bottom side wall of the air guide plate (103) and the two are of the same size; The mounting block (104) is clamped inside the first mounting groove (105), the second mounting block (108) is clamped inside the second mounting groove (106), the air guide pipe (107) is located inside the air guide plate (103), and two ends of the air guide pipe (107) are respectively connected to the first mounting groove (105) and the second mounting groove (106), the first mounting block (104) and the second mounting block (108) are of the same size, the first mounting block (104) and the second mounting block (108) are rectangular frames and made of rubber, the size of the first mounting block (104) is slightly larger than the first mounting groove (105), the four groups of side walls of the first mounting block (104) and the second mounting block (108) are all installed with a second filter screen (109), and the first mounting groove (105) and the second mounting groove (106) are vertically distributed up and down.

2. The aerosol sampler air filter device according to claim 1, characterized in that: The number of the air guide ducts (107) is four, and the air guide ducts (107) are semicircular in shape as a whole.

3. The aerosol sampler air filter device according to claim 1, characterized in that: The sizes of the card block (102) and the card slot (3) are matched, the card block (102) and the card slot (3) are both rectangular, and the upper shell (101) is fixedly connected to the equipment box (2) through the card block (102) and the card slot (3).

4. The aerosol sampler air filter device according to claim 1, characterized in that: An equipment slot (4) is provided on the upper surface of the equipment box (2) inside the card slot (3), a fan (5) is installed inside the equipment slot (4), connecting pipes (6) are fixed on both sides of the fan (5), and air outlets (7) are provided on the outer walls of both sides of the equipment box (2) close to the connecting pipes (6), and the air outlets (7) are connected to the connecting pipes (6).

5. The aerosol sampler air filter device according to claim 1, characterized in that: A frame (8) is provided between the device box (2) and the upper shell (101), a sealing strip (10) is installed at the bottom of the frame (8), a first filter (9) is installed inside the frame (8), and a sealing groove compatible with the sealing strip (10) is opened at the top of the device box (2).

6. The aerosol sampler air filter device according to claim 1, characterized in that: A switch (12) is fixedly mounted on the front side wall of the lower shell (11), indicator lights (13) are mounted on both sides of the switch (12), a communication interface (14) is provided on the front side wall of the lower shell (11) at the lower end of the switch (12), a charging interface (15) is provided at the lower end of the communication interface (14), a storage battery is contained in the charging interface (15), and a control module is mounted inside the lower shell (11).

Images