A portable spore trap

Abstract

The application discloses a portable spore catcher, which comprises an air pump, a spiral plate and an inner cylinder, the air pump is communicated with the inner cylinder, the side wall of the inner cylinder is provided with a ventilation groove, the spiral plate forms a spiral first airflow channel, the spiral plate comprises an inner spiral part in the center and an outer spiral part at the edge, the outer spiral part surrounds the inner spiral part at least once, the inner spiral part comprises a side plate and a filter screen membrane, the side plate is located at the inner side of the inner spiral part, the filter screen membrane is located at the side of the inner spiral part, the second airflow channel which is communicated with the ventilation groove is formed between the side plate and the filter screen membrane, and the ratio of the cross section of the first airflow channel to the cross section of the second airflow channel gradually decreases from the edge to the center of the spiral plate. The application provides a portable spore catcher, which can make the air flow through the filter screen membrane in different areas tend to be the same, the filter screen membranes in different areas can be more fully utilized, and the capturing effect of spores in the air is improved.

Description

Technical Field

[0001] This invention relates to the field of spore capture technology, and in particular to a portable spore catcher. Background Technology

[0002] Spore traps utilize an air pump to draw air into a filter membrane, which then filters out spores from the air, thus capturing them. However, in existing technologies, the filter membrane closer to the air pump experiences a higher volume of air and spores, while the area further away from the pump experiences a lower volume, resulting in inefficient use of the filter membrane. Summary of the Invention

[0003] In view of the above-mentioned prior art, the present invention provides a portable spore trap that can make the airflow through the filter membrane in different areas tend to be the same, so that the filter membrane in different areas can be more fully utilized and the effect of capturing airborne spores can be improved.

[0004] To achieve the above objectives, the technical solution of this invention is implemented as follows: A portable spore trap includes an air pump, a spiral plate, and an inner cylinder. The air pump is connected to the inner cylinder. The inner cylinder has ventilation grooves on its sidewalls. The spiral plate forms a spiral first airflow channel. The spiral plate includes an inner spiral portion at the center and an outer spiral portion at the edge. The outer spiral portion surrounds the inner spiral portion at least once. The inner spiral portion includes a side plate and a filter membrane. The side plate is located inside the inner spiral portion, and the filter membrane is located on the side of the inner spiral portion. A spiral second airflow channel communicating with the ventilation groove is formed between the side plate and the filter membrane. The ratio of the cross-section of the first airflow channel to the cross-section of the second airflow channel gradually decreases from the edge of the spiral plate towards the center.

[0005] Furthermore, the filter membrane has elastic rods at its upper and lower edges. One end of the elastic rod is fixedly connected to the side plate. The upper and lower ends of the side plate are each provided with a support block. The support block is provided with a C-shaped groove for embedding the elastic rod. The outer spiral part is provided with a clearance groove and a sliding groove. The other end of the elastic rod is slidably connected to the sliding groove. The filter membrane is in contact with the side of the clearance groove.

[0006] Furthermore, a clamping piece is hinged to the outer spiral portion above the clearance groove. The other end of the clamping piece is connected to the side plate by a snap fastener. An elastic pad is provided on the side of the clamping piece facing the outer spiral portion. The clamping piece is used to clamp the filter membrane on the side of the clearance groove.

[0007] Furthermore, both the outer spiral portion and the two sides of the side plate are smooth surfaces.

[0008] Furthermore, the air pump includes a first motor, a rotating shaft, and blades. The blades are disposed inside the inner cylinder. An exhaust port is provided above the inner cylinder, and a rain cover is provided above the exhaust port. The blades are connected to the rotating shaft. The output shaft of the first motor is provided with a connector. The connector is provided with a square groove, and the rotating shaft is engaged with the square groove.

[0009] Furthermore, the air pump, spiral plate, and inner cylinder are disposed inside the outer casing, the outer casing is provided with an air inlet, the air inlet is aligned with the first airflow channel, the outer casing is rotatably mounted on the base, and the base is provided with support legs below.

[0010] Furthermore, the base is equipped with a second motor, the output shaft of which is connected to the housing.

[0011] Furthermore, the spiral plate is provided with sealing caps at both the bottom and top, and the inner cylinder passes through the sealing cap located at the bottom to enter the center of the spiral plate.

[0012] Furthermore, the sealing cap has a groove at one end facing the spiral plate, and a shaping plate is detachably connected in the groove. The shaping plate has a spiral positioning groove, and the end of the spiral plate is engaged in the positioning groove.

[0013] Furthermore, the spiral plate located at the air inlet is provided with a slot for holding a glass slide.

[0014] The beneficial effects of this invention are as follows: along the airflow path, it can promote the airflow rate through the filter membrane in different areas to tend to be the same, allowing for more efficient utilization of the filter membrane in different areas and improving the capture effect of spores in the air. In this invention, the filter membrane is disposed on the side of the inner spiral portion. When spores flow in the first airflow channel, they are adsorbed onto the filter membrane due to the airflow. The correlation between the amount of spores adsorbed and the airflow rate through the filter membrane promotes more uniform adsorption of spores onto the filter membrane. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a portable spore trap according to an embodiment of this application; Figure 2 This is a schematic cross-sectional view of a portable spore trap according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the air pump, spiral plate, and inner cylinder in the embodiments of this application. Figure 1 ; Figure 4 This is a schematic diagram of the structure of the air pump, spiral plate, and inner cylinder in the embodiments of this application. Figure 2 ; Figure 5This is a schematic diagram of the structure of the sealing cap and the shaping plate in the embodiments of this application; Explanation of icon numbers: 1. Air pump, 2. Spiral plate, 3. Inner cylinder, 4. Ventilation groove, 5. First airflow channel, 6. Inner spiral part, 7. Outer spiral part, 8. Side plate, 9. Filter membrane, 10. Second airflow channel, 11. Elastic rod, 12. Support block, 13. C-shaped groove, 14. Clearance groove, 15. Sliding groove, 16. Clamping piece, 17. Buckle, 18. Elastic pad, 19. First motor, 20. Rotating shaft, 21. Blade, 22. Exhaust port, 23. Rain cover, 24. Connector, 25. Square groove, 26. Outer shell, 27. Air inlet, 28. Base, 29. Support leg, 30. Second motor, 31. Sealing cover, 32. Groove, 33. Shaping plate, 34. Positioning groove, 35. Glass slide, 36. Slot. Detailed Implementation

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0017] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0018] Example 1 See attached document Figure 1-5This application provides a portable spore trap, including an air pump 1, a spiral plate 2, and an inner cylinder 3. The air pump 1 is connected to the inner cylinder 3. When the air pump 1 is working, it discharges the air from the inner cylinder 3, creating a negative pressure in the inner cylinder 3. The side wall of the inner cylinder 3 is provided with a ventilation groove 4. The spiral plate 2 forms a spiral first airflow channel 5. The spiral plate 2 includes an inner spiral portion 6 located at the center and an outer spiral portion 7 located at the edge. The outer spiral portion 7 surrounds the inner spiral portion 6 at least once. Outside air enters from the first section of the first airflow channel 5. The inner spiral portion 6 includes a side plate 8 and a filter membrane 9. The side plate 8 is located inside the inner spiral portion 6, and the filter membrane 9 is located on the side of the inner spiral portion 6. A spiral second airflow channel 10, which communicates with the ventilation groove 4, is formed between the side plate 8 and the filter membrane 9. Outside air enters the inner cylinder 3 after passing through the first airflow channel 5, the filter membrane 9, and the ventilation groove 4. The filter membrane 9 is used to filter spores in the air. When the air passes through, the spores are filtered and remain on the filter membrane 9. The ratio of the cross-section of the first airflow channel 5 to the cross-section of the second airflow channel 10 gradually decreases from the edge of the spiral plate 2 to the center. For example, the spacing of the spiral plates 2 near the edge increases, while the spacing between the filter membrane 9 and the side plate 8 remains unchanged, so that the ratio of the cross-section of the first airflow channel 5 to the cross-section of the second airflow channel 10 gradually decreases from the edge of the spiral plate 2 to the center. During airflow, air in the first airflow channel 5 continuously passes through the filter membrane 9 into the second airflow channel 10. Because the cross-sectional area of ​​the first airflow channel 5, which is farther from the air pump 1, is larger than that of the second airflow channel 10, the airflow rate passing through the filter membrane 9 in different areas tends to be the same along the airflow path. This allows for more efficient utilization of the filter membrane 9 in different areas, improving the capture effect of spores in the air. In this invention, the filter membrane 9 is located on the outer or inner side of the inner spiral portion 6. When spores flow in the first airflow channel 5, they are adsorbed onto the filter membrane 9 due to the airflow. The correlation between the amount of spores adsorbed and the airflow rate passing through the filter membrane 9 promotes more uniform adsorption of spores onto the filter membrane 9.

[0019] Optionally, the filter membrane 9 is disposed on the outer side of the inner spiral part 6, which can prevent spores from being adsorbed onto the filter membrane 9 due to centrifugal force when flowing in the first airflow channel 5, thereby improving the correlation between the amount of spores adsorbed and the airflow passing through the filter membrane 9.

[0020] Specifically, the filter membrane 9 has elastic rods 11 on its upper and lower edges. One end of each elastic rod 11 is fixedly connected to the side plate 8. Support blocks 12 are provided at both the upper and lower ends of the side plate 8. Each support block 12 has a C-shaped groove 13 for embedding the elastic rod 11. The support block 12 supports the elastic rod 11, and embedding the elastic rod 11 into the C-shaped groove 13 improves its stability. The position of the elastic rod 11 can be adjusted by adjusting the curvature of the spiral plate 2 as needed. The outer spiral part 7 has a clearance groove 14 and a sliding groove 15. The other end of the elastic rod 11 is slidably connected to the sliding groove 15. The filter membrane 9 is in contact with the side of the clearance groove 14. After adjusting the curvature of the spiral plate 2, the filter membrane 9 can slide into the clearance groove 14. The elastic rod 11 can be inserted into the sliding groove 15 of the outer spiral part 7, ensuring a stable connection between one end of the elastic rod 11 and the spiral plate 2.

[0021] Specifically, a clamping piece 16 is hinged to the outer spiral portion 7 above the clearance groove 14. The other end of the clamping piece 16 is connected to the side plate 8 via a snap fastener 17, stably fastening the clamping piece 16 to the outer spiral portion 7, thereby clamping the filter membrane 9 and promoting airflow through the filter membrane 9. Preferably, an elastic pad 18 is provided on the side of the clamping piece 16 facing the outer spiral portion 7. The clamping piece 16 is used to clamp the filter membrane 9 on the side of the clearance groove 14. Using the elastic pad 18 to clamp the filter membrane 9 can prevent damage to the clamping piece 16 and also improve the sealing effect on the edge of the filter membrane 9.

[0022] Specifically, both sides of the outer spiral portion 7 and the side plate 8 are smooth surfaces. Smooth surfaces reduce air resistance and prevent spores from adhering to the surfaces of the outer spiral portion 7 and the side plate 8.

[0023] Specifically, the air pump 1 includes a first motor 19, a rotating shaft 20, and blades 21. The blades 21 are located inside the inner cylinder 3. An exhaust port 22 is located above the inner cylinder 3, and a rain shield 23 is located above the exhaust port 22 to prevent rainwater from entering the inner cylinder 3. The blades 21 are connected to the rotating shaft 20. The output shaft of the first motor 19 has a connector 24. When the first motor 19 rotates, it drives the connector 24 to rotate. The connector 24 has a square groove 25, and the rotating shaft 20 is engaged with the square groove 25. The rotating shaft 20 can be detachably connected to the connector 24, making it convenient to remove the spiral plate 2 that captures spores for spore collection. When the motor rotates, it drives the fan blades to rotate through the connector 24 and the rotating shaft 20. The rotation of the fan blades pushes air out of the exhaust port 22, while outside air flows in from the ventilation slot 4 to replenish it, thereby forming an airflow to capture spores.

[0024] Specifically, the air pump 1, the spiral plate 2, and the inner cylinder 3 are located inside the outer shell 26. The outer shell 26 serves as a protective enclosure. The outer shell 26 is provided with an air inlet 27, which is aligned with the first airflow channel 5. The outer shell 26 is rotatably mounted on the base 28. The position of the air inlet 27 can be adjusted by rotating the outer shell 26, thereby facilitating the capture of spores from different directions. The base 28 is provided with support legs 29 for easy placement of the device.

[0025] Specifically, the base 28 is equipped with a second motor 30, the output shaft of which is connected to the outer casing 26. The second motor 30 drives the outer casing 26 to rotate slowly, capturing spores from different directions.

[0026] Specifically, the spiral plate 2 is provided with sealing caps 31 at both the bottom and top, and the inner cylinder 3 enters the center of the spiral plate 2 through the sealing cap 31 located at the bottom. The sealing caps 31 cover the top and bottom of the spiral plate 2, ensuring that outside air enters the inner cylinder 3 through the first airflow channel 5 and the second airflow channel 10.

[0027] Specifically, the sealing cap 31 has a groove 32 at one end facing the spiral plate 2. A shaping plate 33 is detachably connected to the groove 32. The shaping plate 33 has a spiral positioning groove 34, and the end of the spiral plate 2 is engaged in the positioning groove 34. Different shaping plates 33 can be selected as needed, and the upper and lower ends of the spiral plate 2 are engaged in the positioning groove 34 of the shaping plate 33 to fix the shape of the spiral plate 2. When using filter membranes 9 with different pore sizes, a suitable shaping plate 33 is used to ensure that the filter membrane 9 can pass through the air evenly in different areas, making full use of the filter membrane 9 to capture spores.

[0028] Optionally, the spiral plate 2 located at the air inlet 27 is provided with a slot 36 for holding a glass slide 35. When it is necessary to collect spores for microscopic observation, the glass slide 35 is inserted into the slot 36. When the airflow passes through the air inlet 27, the spores can adhere to the glass slide 35. Then, the glass slide 35 with the spores attached is placed under the microscope for observation, making the operation more convenient.

[0029] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A portable spore trap, characterized in that, The device includes an air pump, a spiral plate, and an inner cylinder. The air pump is connected to the inner cylinder. The side wall of the inner cylinder is provided with a ventilation groove. The spiral plate includes an inner spiral portion located at the center and an outer spiral portion located at the edge. The outer spiral portion of the spiral plate forms a spiral first airflow channel. The outer spiral portion surrounds the inner spiral portion at least once. The inner spiral portion includes a side plate and a filter membrane. The side plate is located inside the inner spiral portion, and the filter membrane is located outside the inner spiral portion. A spiral second airflow channel communicating with the ventilation groove is formed between the side plate and the filter membrane. The bottom and top of the spiral plate are provided with sealing caps. The sealing caps seal the bottom and top of the spiral plate, allowing outside air to enter the first airflow channel and the second airflow channel sequentially. The ratio of the cross-section of the first airflow channel to the cross-section of the second airflow channel gradually decreases from the edge of the spiral plate towards the center.

2. The portable spore trap according to claim 1, characterized in that, The filter membrane has elastic rods at its upper and lower edges. One end of the elastic rod is fixedly connected to the side plate. The upper and lower ends of the side plate are provided with support blocks. The support blocks are provided with C-shaped grooves that are embedded in the elastic rods. The outer spiral part is provided with a clearance groove and a sliding groove. The other end of the elastic rod is slidably connected to the sliding groove. The filter membrane is in contact with the side of the clearance groove.

3. A portable spore trap according to claim 1, characterized in that, The outer spiral part is hinged with a clamping piece above the clearance groove. The other end of the clamping piece is connected to the side plate by a snap fastener. The clamping piece is provided with an elastic pad on the side facing the outer spiral part. The clamping piece is used to clamp the filter membrane on the side of the clearance groove.

4. A portable spore trap according to claim 1, characterized in that, The outer spiral section and both sides of the side plate are smooth surfaces.

5. A portable spore trap according to claim 1, characterized in that, The air pump includes a first motor, a rotating shaft, and blades. The blades are disposed inside the inner cylinder. An exhaust port is provided above the inner cylinder. A rain cover is provided above the exhaust port. The blades are connected to the rotating shaft. The output shaft of the first motor is provided with a connector. The connector is provided with a square groove. The rotating shaft is engaged with the square groove.

6. A portable spore trap according to claim 1, characterized in that, The air pump, spiral plate, and inner cylinder are housed inside the outer casing. The outer casing has an air inlet aligned with the first airflow channel. The outer casing is rotatably mounted on a base, and a support leg is provided below the base.

7. A portable spore trap according to claim 6, characterized in that, The base is equipped with a second motor, and the output shaft of the second motor is connected to the outer casing.

8. A portable spore trap according to claim 1, characterized in that, The inner cylinder passes through the sealing cap located at the bottom and enters the center of the spiral plate.

9. A portable spore trap according to claim 8, characterized in that, The sealing cap has a groove at one end facing the spiral plate, and a shaping plate is detachably connected in the groove. The shaping plate has a spiral positioning groove, and the end of the spiral plate is engaged in the positioning groove.

10. A portable spore trap according to claim 6, characterized in that, The spiral plate located at the air inlet is provided with a slot for holding a glass slide.

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