A spore capture device

Abstract

The utility model relates to plant pathogenic fungi detection technical field, concretely relates to a spore trapping equipment, including the casing, the upper end of casing is equipped with the air inlet, the lower end intercommunication of air inlet is provided with the upper hopper, the lower end intercommunication of upper hopper is provided with the negative pressure air pipe, the lower end of negative pressure air pipe is equipped with the lower hopper, the lower end of lower hopper is equipped with the negative pressure equipment for generating the negative pressure suction spore, the inside of lower hopper is equipped with the adhesion equipment, the lower end export of lower hopper passes through the lower exhaust pipe casing inside middle lower part, compared with the traditional single collection mode of relying on airflow or gravity, the equipment can more effectively collect the spore in air, the lower hopper focuses air, forms a more concentrated airflow, and blows the airflow to the adhesion equipment with the adhesion capacity, when the airflow containing spore contacts the adhesion equipment, the spore will be adhered on the adhesion equipment, thereby completes the collection function of spore, avoids the dissipation of spore in the collection process, improves the accuracy and reliability of collection.

Description

Technical Field

[0001] This utility model relates to the field of plant pathogen detection technology, specifically to a spore capture device. Background Technology

[0002] In the field of plant pathogen detection, accurately collecting airborne plant pathogen spores is a crucial prerequisite for subsequent pathogen analysis, prediction, and control. However, existing spore-capturing devices on the market have significant shortcomings in spore collection, and the inability to collect spores has become a pressing issue that the industry urgently needs to address. The tiny size of spores and their dispersed distribution in the air, coupled with the presence of numerous other impurities, greatly increase the difficulty of accurate spore collection.

[0003] Existing equipment often relies solely on the gravity settling method of hollow tubes for collection, resulting in low collection efficiency and inaccurate results, which seriously affects the detection and control of plant pathogens. Therefore, developing a device that can efficiently and accurately collect plant pathogen spores is of great practical significance. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a spore-capturing device to solve the above-mentioned problems.

[0005] The purpose of this utility model is achieved as follows: a spore-capturing device includes a housing, an air inlet at the upper end of the housing, an upper funnel at the lower end of the air inlet, a negative pressure duct at the lower end of the upper funnel, a lower funnel at the lower end of the negative pressure duct, a negative pressure device for generating negative pressure to attract spores at the lower end of the lower funnel, an adhesion device with adhesion ability inside the lower funnel, and the lower outlet of the lower funnel passes through the lower middle part of the housing of the lower exhaust duct.

[0006] Preferably, the negative pressure device is a negative pressure fan, and the negative pressure fan forms an airflow channel with the upper funnel, the lower funnel and the negative pressure duct.

[0007] Preferably, both the upper and lower funnels are inverted frustum-shaped.

[0008] Preferably, the adhesion device is a polyester film tape.

[0009] Preferably, the surface of the polyester film tape is coated with a silicon-based adhesive coating with a thickness of 5-10 micrometers.

[0010] This utility model has the following beneficial effects:

[0011] 1. This spore-capturing device, upon activation of the negative pressure system, creates a negative pressure environment at the lower funnel and its rear end. This environment draws air in through the air inlet at the top of the casing. On one hand, spores tend to sink due to gravity; on the other hand, the negative pressure generated by the device further attracts spores, guiding them more effectively to the pointed outlet at the end of the upper funnel. This dual-action mechanism significantly increases the likelihood of spores entering the device. Compared to traditional methods relying solely on airflow or gravity, this method more effectively collects airborne spores. The lower funnel focuses the air, creating a concentrated airflow that is directed towards an adhesive device. When the spore-containing airflow contacts the adhesive device, the spores adhere to it, thus completing the spore collection process. This prevents spore loss during collection and improves the accuracy and reliability of the collection.

[0012] 2. The adhesion device is a polyester film tape. The polyester film tape utilizes its own adhesive surface. When the airflow containing spores passes through the lower funnel, the spores come into contact with the tape surface and are adhered and fixed, thereby achieving spore collection. The tape can be directly removed for microscopic observation or laboratory analysis without complicated sample transfer steps, improving detection efficiency. The surface of the polyester film tape is coated with a silicon-based adhesive coating with a thickness of 5-10 micrometers. The silicon-based coating has high adhesion and weather resistance. The thickness of 5-10 micrometers ensures sufficient adhesion to adsorb spores without causing excessive surface viscosity due to excessive coating thickness. Moreover, the adhesion of the silicon-based coating is better than that of ordinary tape, which can enhance adhesion performance and more firmly capture microspores, even showing good adhesion effect to hydrophobic spores. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 for Figure 1 Enlarged view of point A;

[0016] The labels in the attached diagram are:

[0017] 1. Air inlet; 2. Upper funnel; 3. Negative pressure duct; 4. Lower funnel; 5. Negative pressure fan; 6. Lower exhaust duct; 7. Polyester film tape; 8. Housing. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the technical solutions in the specific embodiments of this utility model are clearly and completely described below to further illustrate this utility model. Obviously, the specific embodiments described are only a part of the embodiments of this utility model, and not all of them.

[0019] The following is in conjunction with the appendix Figure 1-2 The present invention will be described in further detail below.

[0020] Example 1:

[0021] A spore-capturing device includes a housing 8, an air inlet 1 at the upper end of the housing 8, an upper funnel 2 at the lower end of the air inlet 1, a negative pressure duct 3 at the lower end of the upper funnel 2, a lower funnel 4 at the lower end of the negative pressure duct 3, a negative pressure device for generating negative pressure to attract spores at the lower end of the lower funnel 4, an adhesion device with adhesion ability inside the lower funnel 4, and the lower outlet of the lower funnel 4 is through a lower exhaust duct 6 in the lower middle part of the housing 8.

[0022] When using this device, after the negative pressure equipment is activated, a negative pressure environment is created in the lower funnel 4 and its rear end, causing air to be drawn in from the air inlet 1 at the top of the casing 8. On the one hand, spores tend to sink downwards due to gravity; on the other hand, the negative pressure generated by the negative pressure equipment further attracts spores, allowing them to be more effectively guided to the pointed outlet at the end of the upper funnel 2. This dual-action mechanism greatly increases the likelihood of spores entering the device. Compared to traditional collection methods that rely solely on airflow or gravity, it can more effectively collect spores from the air. The lower funnel 4 focuses the air, forming a relatively concentrated airflow, and blows this airflow toward the adhesive device with adhesion capabilities. When the airflow containing spores comes into contact with the adhesive device, the spores are adhered to the adhesive device, thus completing the spore collection function, avoiding spore loss during the collection process, and improving the accuracy and reliability of the collection.

[0023] In this embodiment, the negative pressure device is a negative pressure fan 5. The negative pressure fan 5 forms an airflow channel with the upper funnel 2, the lower funnel 4 and the negative pressure air duct 3. The negative pressure fan 5 provides continuous and controllable negative pressure power to ensure stable airflow speed and ensure that spores are effectively sucked into the lower funnel 4 with the airflow. The closed and sealed characteristics of the airflow channel reduce air resistance and eddies, making it easier for spores to be guided to the adhesion device in the airflow and improving the capture success rate.

[0024] In this embodiment, both the upper funnel 2 and the lower funnel 4 are inverted frustum shapes. The inverted frustum structure causes the airflow channel to gradually narrow from the wide opening at the top to the narrow opening at the bottom. According to the principles of fluid mechanics, the airflow speed will gradually increase as it passes through, forming an acceleration effect, reducing spore escape caused by airflow dispersion, and improving the capture rate.

[0025] In this embodiment, the adhesion device is a polyester film tape 7. The polyester film tape 7 utilizes its own adhesive surface. When the airflow containing spores passes through the lower funnel 4, the spores come into contact with the tape surface and are adhered and fixed, thereby realizing the collection of spores. The tape can be directly removed for microscopic observation or laboratory analysis without complicated sample transfer steps, thus improving detection efficiency.

[0026] In this embodiment, the surface of the polyester film tape 7 is coated with a silicon-based adhesive coating (not shown in the figure) with a thickness of 5-10 micrometers. The silicon-based coating has high adhesion and weather resistance. The thickness of 5-10 micrometers can ensure sufficient adhesion to adsorb spores without causing excessive surface viscosity due to excessive coating thickness. Moreover, the adhesion of the silicon-based coating is better than that of ordinary tape, which can enhance the adhesion performance, capture microspores more firmly, and even have a good adhesion effect on hydrophobic spores.

[0027] The working principle of this utility model is as follows: The spore capturing device includes a shell 8, with an air inlet 1 at the upper end of the shell 8, an upper funnel 2 connected to the lower end of the air inlet 1, a negative pressure air duct 3 connected to the lower end of the upper funnel 2, a lower funnel 4 at the lower end of the negative pressure air duct 3, a negative pressure device for generating negative pressure to attract spores at the lower end of the lower funnel 4, and an adhesion device with adhesion ability inside the lower funnel 4. The lower outlet of the lower funnel 4 is through the lower exhaust air duct 6 in the middle and lower part of the shell 8. When using this device, after the negative pressure device is started, a negative pressure environment is formed in the lower funnel 4 and its rear end, causing air to be drawn in from the air inlet 1 at the upper end of the shell 8. On the one hand, the spores tend to sink downwards due to gravity; on the other hand, the negative pressure generated by the negative pressure device further attracts the spores, so that the spores can be more effectively guided to the pointed outlet at the end of the upper funnel 2. This dual-action mechanism significantly increases the likelihood of spores entering the device. Compared to traditional collection methods that rely solely on airflow or gravity, it can more effectively collect airborne spores. The lower funnel 4 focuses the air, forming a more concentrated airflow, which is then directed towards the adhesive device. When the spore-containing airflow comes into contact with the adhesive device, the spores adhere to it, thus completing the spore collection function. This avoids spore loss during collection and improves the accuracy and reliability of the collection.

[0028] It should be noted that, depending on the implementation needs, the various components described in the embodiments of this utility model can be divided into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of this utility model. The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A spore-capturing device, comprising a housing (8), characterized in that: The upper end of the housing (8) is provided with an air inlet (1), the lower end of the air inlet (1) is connected to an upper funnel (2), the lower end of the upper funnel (2) is connected to a negative pressure air duct (3), the lower end of the negative pressure air duct (3) is provided with a lower funnel (4), the lower end of the lower funnel (4) is provided with a negative pressure device for generating negative pressure to attract spores, the lower funnel (4) is provided with an adhesion device with adhesion ability, and the lower end outlet of the lower funnel (4) is connected to the lower middle part of the housing (8) through the lower exhaust air duct (6).

2. The spore-capturing device according to claim 1, characterized in that: The negative pressure device is a negative pressure fan (5), and the negative pressure fan (5) forms an airflow channel with the upper funnel (2), the lower funnel (4) and the negative pressure duct (3).

3. The spore-capturing device according to claim 1, characterized in that: Both the upper funnel (2) and the lower funnel (4) are inverted frustum shapes.

4. The spore-capturing device according to claim 1, characterized in that: The adhesion device is a polyester film tape (7).

5. The spore-capturing device according to claim 4, characterized in that: The surface of the polyester film tape (7) is coated with a silicon-based adhesive coating with a thickness of 5-10 micrometers.

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