Nondestructive adult mosquito monitoring, trapping and collecting equipment

Abstract

The utility model provides a lossless adult mosquito monitoring and trapping collection device which comprises a carbon dioxide supply system, an electric power supply system and a mosquito lossless collection system. The mosquito lossless collection system comprises a mosquito collection barrel, an axial flow fan is arranged at the bottom of the mosquito collection barrel, a mosquito separation net is arranged above the axial flow fan, a bionic luring system is arranged at the top of the mosquito collection barrel, and the carbon dioxide supply system is arranged above the mosquito collection barrel. The power supply system is used for supplying power to the axial fan, the trapping device and the carbon dioxide supply system. According to the device, mosquitoes can be sucked into the trap without fan blades, the trap structure which is provided with a heating body and can simulate the temperature of the human body is arranged at the inlet of the air duct, various sensors are organically integrated, the functions of damaging the form of the mosquitoes, simulating the temperature of the human body and the like can be achieved, and the efficiency and quality of mosquito monitoring are improved.

Description

Technical Field

[0001] The utility model relates to the field of experimental equipment, in particular to a non-destructive adult mosquito monitoring and trapping collection device. Background Art

[0002] Mosquitoes are the most important medical vectors. There are more than 3,500 known mosquito species in the world. There are about 400 species of mosquitoes in 21 genera in my country. More than 10 species are harmful to humans. They can spread malaria, yellow fever, dengue fever, West Nile fever, Zika virus disease, chikungunya fever, Japanese encephalitis and other diseases. In order to fully understand the composition, density, distribution, seasonal changes and prevention and control strategies of mosquito species, and provide a scientific basis for risk assessment, prediction and early warning, and control planning of mosquito-borne infectious diseases such as dengue fever and Zika virus disease, the National Health Commission and the Chinese Center for Disease Control and Prevention require disease control departments at all levels across the country to carry out mosquito density monitoring and collect mosquito specimens for morphological identification of species, drug resistance detection, and pathogen detection. Therefore, certain requirements are put forward for the collection of mosquito specimens, namely, high mosquito trapping efficiency, low proportion of miscellaneous insects, complete morphology, and good activity, so as to facilitate subsequent morphological observation, pathogen isolation, nucleic acid extraction and other operations. Therefore, professionals usually collect mosquitoes by trapping to achieve the above goals.

[0003] There are many ways to collect mosquito specimens. The following are several common methods and their advantages and disadvantages.

[0004] The advantage of the waving net method is that it uses a special conical insect net (silk net) for capture, which is simple to operate and convenient for use in outdoor environments. Its disadvantage is that it requires certain skills and proficiency of the operator, and the number of mosquitoes captured may be small.

[0005] The advantage of the human luring method is that mosquitoes are attracted by exposing the calves or arms, and then captured using a mosquito suction device or mosquito tube. The biting behavior of mosquitoes can be observed more intuitively. However, the disadvantage is that it requires sitting or standing for a long time, which requires a certain amount of physical strength and patience from the operator. There may be a risk of being bitten and infected, and it is greatly restricted by weather conditions.

[0006] The advantage of the animal trapping method is that it uses livestock or experimental animals to attract mosquitoes and then collects them around them, which can improve the capture efficiency. The disadvantage is that livestock or experimental animals need to be prepared in advance and may have a certain impact on the environment.

[0007] The advantage of the commonly used mosquito lamp method (carbon dioxide mosquito lamp, mosquito light trap, BG-TRAP, etc.) is that it uses odor and / or light source to attract mosquitoes, is simple to operate, does not require human intervention, and can continuously capture mosquitoes. However, the disadvantage is that it may attract other non-target insects, and the fan structure will cause varying degrees of damage to the morphology of the specimen when the mosquito enters the trap, resulting in incomplete specimens and missing important morphological features, which is not conducive to species identification and may even cause the death of mosquitoes and make subsequent live detection impossible.

[0008] The larval straw method and spoon scoop method are to obtain complete mosquito specimens by capturing mosquito larvae (mosquito larvae) and waiting for them to emerge as adults. However, the disadvantage is that it consumes manpower and material resources and breeding time, and some mosquito larvae may not emerge due to improper environment or operation, making it impossible to obtain adult mosquito specimens.

[0009] In 1962, Sudia and others from the Centers for Disease Control and Prevention (CDC) in the United States designed a small battery-powered mosquito trap (CDC mosquito trap for short). The principle is to use white light to lure mosquitoes to the vicinity of a fan, which is then sucked down into a collector by the fan. This device is mainly used for monitoring mosquitoes and mosquito-borne viruses. This is also the original form of the CDC mosquito trap. Another important task is to introduce carbon dioxide (CO2) into the CDC mosquito trap, which becomes a carbon dioxide mosquito trap. my country's national standard for mosquito density monitoring (GB / T 23797 Methods for Monitoring Density of Vector-borne Organisms - Mosquitoes) was implemented in 2009 (revised for the first time in 2021). There are 11 methods for monitoring adult mosquito density, of which the most important and most commonly used is the carbon dioxide mosquito trap method, which has been incorporated into the National Vector-borne Organism Monitoring Program.

[0010] From the development and use of carbon dioxide mosquito traps in 1966 to their current global adoption, their main components and mechanical mechanisms have not changed substantially, but there are the following problems in their current natural and social environment applications:

[0011] 1 There are many problems with the use of these traps in wild areas, which are characterized by high temperatures, humidity, and rainfall;

[0012] 2 Excessive moisture, either from heavy rainfall or condensation in dry ice containers that serve as a source of CO2, often causes power supply problems and motor failures. Moisture in the collection containers also reduces the quality of the collected mosquitoes, affecting morphological-based species identification, DNA quality, and subsequent biological studies, which require the mosquitoes to be alive and in good condition.

[0013] 3 Most studies on mosquito traps focus on how they affect mosquito species richness and distribution, but few studies have investigated the quality of mosquito collection. Previous studies have found that the proportion of adult mosquitoes captured was too damaged, with decapitated heads, missing body scales, and damaged wing veins, to be determined by morphology.

[0014] 4 Carbon dioxide mosquito traps use carbon dioxide to attract mosquitoes from a long distance (within a range of 50 meters) to the vicinity of the trap. When mosquitoes approach the target object for blood-sucking at close range, they need to use temperature and humidity sensors to locate the biting object. However, all current traps do not consider the effect of temperature on close-range mosquito attraction. This causes mosquitoes to hover repeatedly near the trap, and it is impossible to accurately locate the specific blood-sucking point, resulting in a significant decrease in trapping efficiency. The only way is to use the suction force of the fan to suck mosquitoes that randomly appear in the air duct area into the trap. At the same time, the fan blades will also cause a high proportion (about 30%) of adult mosquitoes to be damaged. Utility Model Content

[0015] In order to solve the problems that the currently widely used carbon dioxide mosquito traps have low efficiency in close-range luring and the air duct design destroys the morphology of mosquitoes, the utility model provides a device with an improved air duct structure and bionic mosquito density monitoring and collection. The device can suck mosquitoes into the trap without passing through fan blades, and has a trap structure with a heating body at the entrance of the air duct that simulates human body temperature, which organically integrates multiple sensors and can achieve functions such as non-destructive mosquito morphology and simulation of human body temperature, thereby improving the efficiency and quality of mosquito monitoring.

[0016] To achieve the above purpose, the utility model adopts the following technical solutions.

[0017] A non-destructive adult mosquito monitoring and trapping and collection device, comprising a carbon dioxide supply system, a power supply system and a non-destructive mosquito collection system; the non-destructive mosquito collection system comprises a mosquito collecting barrel, an axial flow fan is arranged at the bottom of the mosquito collecting barrel, a mosquito isolation net is arranged above the axial flow fan, a bionic attraction system is arranged on the top of the mosquito collecting barrel, the carbon dioxide supply system is arranged above the mosquito collecting barrel, and the power supply system is used to supply power to the axial flow fan, the trapping device and the carbon dioxide supply system.

[0018] Preferably, an opening is provided at the top of the mosquito collecting barrel, and an automatically opened and closed damper is provided at the opening to prevent mosquitoes from escaping from the mosquito collecting barrel.

[0019] Preferably, a rotating shaft is installed in the middle of the damper, the rotating shaft is rotatably connected to the opening, a limiting block is installed on the opening edge on the right side of the rotating shaft, and a counterweight block is installed on the damper edge on the left side of the rotating shaft.

[0020] Preferably, the bionic attraction system includes a heating film and a human body odor sustained-release sheet, which can simulate human body temperature and human breath and skin odor.

[0021] Preferably, the human body odor sustained-release sheet is a 38-40°C heating sheet, which is adhered to the entrance of the mosquito collecting barrel by adhesive.

[0022] Preferably, a control board with an integrated control chip is provided at the bottom of the mosquito collecting bucket for controlling the operation of the fan.

[0023] Preferably, the air duct suction system is connected to the axial flow fan and installed at the end of the mosquito collecting barrel (box).

[0024] Preferably, a windproof and rainproof cover is provided above the mosquito collecting barrel, and a carbon dioxide release port is provided on the lower surface of the windproof and rainproof cover.

[0025] Preferably, a carbon dioxide deflector is provided below the wind and rainproof cover.

[0026] The power supply system starts the fan and at the same time turns on the bionic attraction system to release attractants to attract female mosquitoes. When the mosquitoes approach the air flow at the upper end of the air duct suction system, they are sucked into the mosquito collecting channel and directly enter the mosquito collecting barrel without passing through the fan blades, thereby achieving lossless mosquito trapping.

[0027] Compared with the prior art, the beneficial effects of the utility model are:

[0028] 1. The utility model optimizes the air duct structure of the traditional fan-driven mosquito trap and places the fan at the end of the air duct, which makes up for the shortcoming that the wind speed blades of the current mosquito trap may damage the integrity of the mosquito specimen, and comprehensively improves the applicability and efficiency of the equipment.

[0029] 2. Using the bionic lure system, on the basis of the traditional carbon dioxide as bait, a human odor slow-release structure is added, and a constant temperature film is innovatively introduced to simulate the process of mosquitoes sensing human temperature when locating blood-sucking objects at close range, thereby more effectively attracting mosquitoes to the air duct entrance, avoiding the defect of existing devices that cannot locate targets at close range, and significantly improving the trapping efficiency from the two perspectives of temperature and odor. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 This is a structural diagram of the utility model when the damper is closed;

[0032] Figure 2 yes Figure 1 A partial enlarged view of the

[0033] Figure 3 This is a structural diagram of the utility model when the damper is opened;

[0034] In the figure, 1. hanging ring, 2. wind and rainproof cover, 3. carbon dioxide release port, 4. carbon dioxide deflector, 5. hanging bracket, 6. attractant installation slot, 7. mosquito collecting bucket, 8. gauze, 9. axial flow fan, 10. damper, 11. counterweight block, 12. limit block. DETAILED DESCRIPTION

[0035] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0036] The utility model discloses a Figure 1-3 The non-destructive intelligent adult mosquito density monitoring and trapping and collection equipment shown in the figure includes three parts: a carbon dioxide supply system, a power supply system, and a mosquito non-destructive collection system. The equipment suspends the entire set of trapping and collection equipment about 1.5 meters above the ground through a hanging ring 1, and a windproof and rainproof cover 2 is set under the hanging ring 1, and a carbon dioxide release port 3 is set on the lower surface of the windproof and rainproof cover 2. Since almost all blood-sucking insects rely on the carbon dioxide released by the host to locate the host, and other non-blood-sucking pests almost do not rely on carbon dioxide to locate the host, it is basically possible to prevent non-mosquito flying insects from entering; a carbon dioxide deflector 4 with a diameter smaller than the diameter of the windproof and rainproof cover is set below the carbon dioxide release port to facilitate the formation of an attracting airflow with a stable speed and a concentration from high to low.

[0037] A hanging bracket 5 is arranged below the wind and rainproof cover 2, and the entire mosquito collecting bucket 7 is connected below the hanging bracket. There is a cylindrical opening at the top of the mosquito collecting bucket 7, which is convenient for airflow to be sucked into the bucket through the mosquitoes. At the same time, an attractant installation groove 6 is arranged at the cylindrical opening, and a constant temperature film and a human body odor sustained release tablet are placed in the installation groove. The bottom of the mosquito collecting bucket 7 is open and covered with a cylindrical ventilation gauze 8. An axial flow fan 9 is arranged below the gauze 8. The axial flow fan is powered by a mobile power supply through a cable and rotates. Through the gauze, an air duct is formed that enters from the top of the mosquito collecting bucket 7 and is output from the bottom; mosquitoes are attracted by the odor and are sucked into the mosquito collecting bucket 7 from the air duct.

[0038] A damper 10 is rotatably installed at the upper opening of the mosquito collecting bucket 7, a rotating shaft is installed in the middle of the damper, a limit block 12 is installed at the opening edge on the right side of the rotating shaft, and a counterweight block 11 is installed at the damper edge on the left side of the rotating shaft. Under the action of the negative pressure formed by the rotation of the fan, the damper rotates clockwise to open the channel, and mosquitoes enter the mosquito collecting bucket. After the collection work is completed, the fan stops rotating, and the damper is reset under the action of the counterweight block to close the opening.

[0039] The device also provides a spectral or specific attractant installation slot 6 for mosquitoes to meet different monitoring requirements.

[0040] The utility model integrates a bionic attracting system consisting of a heating film (38-40℃ heating sheet), carbon dioxide, human body odor, etc. on the mosquito attracting device, and improves the air duct to prevent mosquitoes from being destroyed by the fan, thereby solving the problem of low trapping efficiency caused by the difficulty in accurately locating the air duct after mosquitoes are lured to the vicinity of the trap by carbon dioxide over a long distance, resulting in random flight, thereby improving the objectivity and reliability of mosquito monitoring. The system does not use light trapping, because the presence of light does not significantly increase the collection of mosquitoes, but reduces the trapping of non-mosquito flying insects, greatly simplifying the classification, counting and identification of mosquitoes.

[0041] In short, this non-destructive adult mosquito monitoring and trapping collection equipment simulates and organically integrates the mosquito's chemical perception system for odors and heat sources, which can significantly improve the efficiency of mosquito trapping and ensure the integrity of specimens. Ultimately, it can monitor and evaluate the species and numbers of mosquitoes more objectively and accurately.

[0042] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A non-destructive adult mosquito monitoring and trapping equipment, characterized in that: The invention comprises a carbon dioxide supply system, an electric power supply system and a non-destructive mosquito collection system; the non-destructive mosquito collection system comprises a mosquito collecting barrel (7), an axial flow fan (9) is arranged at the bottom of the mosquito collecting barrel, a mosquito isolation net is arranged above the axial flow fan, a bionic attracting system is arranged at the top of the mosquito collecting barrel, the carbon dioxide supply system is arranged above the mosquito collecting barrel, and the electric power supply system is used to supply power to the axial flow fan, the trapping device and the carbon dioxide supply system.

2. The non-destructive adult mosquito monitoring and trapping equipment according to claim 1, characterized in that: An opening is provided at the top of the mosquito collecting bucket, and an automatically opening and closing damper (10) is arranged at the opening.

3. The non-destructive adult mosquito monitoring and trapping equipment according to claim 2, characterized in that: A rotating shaft is installed in the middle of the damper, and the rotating shaft is rotatably connected to the opening. A limit block (12) is installed on the opening edge on the right side of the rotating shaft, and a counterweight block (11) is installed on the damper edge on the left side of the rotating shaft.

4. The non-destructive adult mosquito monitoring and trapping equipment according to claim 1, characterized in that: The bionic attraction system comprises a heating film and a human body odor sustained-release sheet.

5. The non-destructive adult mosquito monitoring and trapping equipment according to claim 4, characterized in that: The human body odor sustained-release sheet is a 38-40° C. heating sheet, which is attached to the entrance of the mosquito collection barrel by adhesive.

6. The non-destructive adult mosquito monitoring and trapping equipment according to claim 1, characterized in that: A control board with an integrated control chip for controlling the operation of a fan is arranged at the bottom of the mosquito collecting bucket.

7. The non-destructive adult mosquito monitoring and trapping equipment according to claim 1, characterized in that: A windproof and rainproof cover (2) is arranged above the mosquito collecting barrel, and a carbon dioxide release port (3) is arranged on the lower surface of the windproof and rainproof cover.

8. The non-destructive adult mosquito monitoring and trapping equipment according to claim 7, characterized in that: A carbon dioxide deflector cover (4) is arranged below the wind and rainproof cover.

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