A wind suction type insect catching device with air insect diversion and infrared counting

Abstract

The application discloses a wind suction type insect catching equipment with air insect diversion and infrared counting, relates to the technical fields of infrared counting and pest monitoring, and comprises a shell, an insect inlet and an insect trapping opening are formed in the top plate surface, air outlet of the fan is vertically sealed and butt-jointed with the pressure equalizing cavity, and the rear side of the insect prevention screen is surrounded by the annular air bypass. The wind suction type insect catching equipment with air insect diversion and infrared counting is provided with the air insect diversion structure design, most of the air flow is diverted and discharged from the annular air bypass surrounding the infrared counting channel, only a small air flow carrying insects enters the narrow infrared counting channel in the center, the detection accuracy of the infrared counting module for small insects is ensured, the missing detection probability is reduced, the number and cost of sensors are not additionally increased, the total air volume required by the wind suction type insect catching is met, the problems of high back pressure, insufficient air volume, loud noise and the like caused by the narrow channel are avoided, and the insect catching effect and counting accuracy are considered.

Description

Technical Field

[0001] This invention relates to the field of infrared counting and pest monitoring technology, specifically to a wind-suction insect trapping device with air-insect diversion infrared counting. Background Technology

[0002] Existing infrared beam-based insect detection devices typically rely on insects passing through a narrow detection channel. When an insect blocks the infrared light path, the device determines its presence based on changes in the light signal. Infrared detection has a structural limitation: for larger objects, sufficient blocking area makes it easy for the infrared receiver to detect changes. However, for small flying insects like mosquitoes, their small size and fluctuating flight attitudes mean that insufficient blocking of a single or small infrared beam can lead to missed detections. To accurately detect small flying insects within a larger entry channel, a denser arrangement of infrared receivers is required. Multi-array optical paths, such as arranging multiple millimeter-scale receiver blocks within a wide channel range, significantly increase the number of sensors, signal processing complexity, and cost. Existing infrared monitoring equipment typically uses narrower channels to increase the proportion of small insects blocking the infrared optical path and reduce sensor costs. However, narrower channels conflict with air-suction insect traps: air-suction insect traps require sufficient air intake and exhaust channels to form a stable suction. If all the airflow is forcibly forced into a narrow infrared detection channel, it will cause increased back pressure, decreased airflow, increased noise, and reduced capture effect.

[0003] In the prior art, Chinese patent CN211241394U discloses a safe and environmentally friendly insect trapping device, including a main frame, a trapping source, a compressor, and a collector. A pointed tip is provided at the bottom of the main frame for easy insertion into the field. The trapping source uses a combination of air sources and light sources, with two light sources. Mosquitoes are very sensitive to the wavelength of light waves, and even a change of tens of nanometers in the frequency band of the light wave can have a significant impact on the trapping effect, or even prevent them from being trapped. The wavelength of the emitted light is selected to be a combination of 410nm and 360nm, and is installed between the compressor and the collector. Both the compressor and the collector are installed on the main frame.

[0004] Chinese Patent No. CN224267955U discloses a wind-suction insect trapping device, including a base plate, a shell fixedly connected to the lower surface of the base plate, an insect inlet hole on the upper surface of the base plate, a motor fixedly connected to the inner wall of the shell, a drive rod fixedly connected to the output end of the motor, fan blades fixedly fitted on the surface of the drive rod, a mesh frame slidably connected to the inner wall of the shell, and an electric grid fixedly connected to the inner wall of the mesh frame. When insects around the insect-attracting lamp are sucked into the shell through the insect inlet hole, they pass through the electric grid, and some fall into the insect-collecting box. When it is necessary to clean the insects adhering to the surface of the electric grid, the insert block is first pulled upwards using a lever. The upward movement of the insert block away from the slot releases the fixation of the locking block. Then, the mesh frame is pulled out using a pull groove. After cleaning the insects from the surface of the electric grid, the mesh frame is pushed back into place, thus making the device easy to install and remove the electric grid.

[0005] The aforementioned device utilizes airflow generated by wind suction to carry insects through the detection area without separating the airflow from the insects. All airflow must pass through the narrow infrared detection channel, resulting in significant fan pressure loss and an inability to maintain stable suction. Furthermore, widening the detection channel can lead to missed detections due to insufficient coverage of small insects, making it impossible to balance the insect-catching airflow requirements with the accuracy of infrared counting. Summary of the Invention

[0006] The purpose of this invention is to provide a wind-suction insect trapping device with airflow diversion and infrared counting, in order to solve the problems mentioned in the background art, which require the airflow to pass through a narrow infrared detection channel, resulting in large wind pressure loss of the fan and inability to maintain stable suction. At the same time, if the detection channel is widened, the insufficient area covered by small insects will make it impossible to meet the requirements of insect trapping airflow and accurate infrared counting.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a wind-suction insect trapping device with airflow diversion and infrared counting, comprising a shell, a top plate fixedly installed at the top of the shell, an insect inlet and an insect attractant outlet on the surface of the top plate, and an attractant release area, a front grille, a fan, a pressure equalization chamber, a diverter, and an infrared counting channel arranged coaxially from top to bottom along the same vertical central axis in the hollow channel inside the shell; the lower air outlet of the fan is vertically sealed and connected to the pressure equalization chamber, the lower opening of the pressure equalization chamber is directly opposite the diverter, and an integrated central insect guide cone is provided on the bottom surface of the pressure equalization chamber. Vertically positioned directly above the infrared counting channel, the central insect-guiding cone is radially divided from the inside out with the vertical axis as the center into a central solid-wall insect-guiding area and an outer ring insect-proof screen bypass area. The rear side of the insect-proof screen forms an annular air bypass, which connects to the internal diversion channel of the diversion component. The annular air bypass is coaxially surrounding the outer perimeter of the infrared counting channel. Infrared counting modules are symmetrically installed on the outer walls of the left and right sides of the infrared counting channel. A backflow prevention and anti-backflow device is embedded inside the lower end of the infrared counting channel. The bottom of the backflow prevention and anti-backflow device connects to the horizontal discharge port. The diversion channel connects downward to the upper space of the insect collection chamber.

[0008] Furthermore, the central insect-guiding cone is funnel-shaped, wider at the top and narrower at the bottom. The inner radial layer of the same cone surface is a smooth, solid-walled insect-guiding area without pores, and an insect-proof screen is fixedly installed around the entire radial outer ring. The diameter of the solid-walled insect-guiding area is smaller than the inner diameter of the inner ring of the insect-proof screen.

[0009] Furthermore, the annular air bypass is radially inner against the infrared counting channel and radially outer against the inner wall of the outer casing, thus completely enclosing the infrared counting channel.

[0010] Furthermore, the infrared counting channel is vertically and coaxially arranged on the central axis of the whole machine, and the infrared counting modules are respectively located symmetrically on the left and right sides of the channel. The optical paths of the transmitting end and the receiving end horizontally cross the hollow cavity of the infrared counting channel, and the optical paths are perpendicular to the vertical falling path of the insect.

[0011] Furthermore, the anti-backflow and anti-reverse airflow component is completely embedded in the bottom cavity of the infrared counting channel and is vertically located at the junction of the infrared counting channel and the discharge port, allowing only downward one-way passage of insects and blocking airflow and upward backflow of insects.

[0012] Furthermore, one end of the discharge port is connected to the outlet of the channel below the anti-backflow and anti-reverse airflow component, and the other end is located on the upper part of the insect collection bucket. The outer surface of the anti-backflow and anti-reverse airflow component is provided with a protective shell, and the insect collection bucket is fixedly installed inside the insect collection chamber.

[0013] Furthermore, the fan is vertically positioned below the inducer release area and directly above the pressure equalization chamber. The bottom air outlet face of the fan is completely sealed to the top opening of the pressure equalization chamber, and the two are connected vertically along the same vertical line without any lateral offset.

[0014] Furthermore, the attractant release area is vertically positioned below the top plate and above the fan, and the front grille is horizontally positioned between the attractant release area and the fan, blocking the upper air intake section of the fan.

[0015] Furthermore, an adjustable baffle is installed inside the diversion channel, near the air outlet end of the air bypass. The baffle moves back and forth along the airflow direction of the diversion channel, adjusting the size of the bypass ventilation area by blocking the flow cross section.

[0016] Furthermore, the outer shell insect path is a single central vertical path, coaxially running from top to bottom along the outer shell through the central insect guide cone and infrared counting channel, without any lateral branches. The two airflows only converge inside the bottom insect collection bucket, and the location of the diversion component achieves complete isolation between the insect and air spaces.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) By designing the air-insect diversion structure, most of the airflow is diverted from the annular air bypass surrounding the infrared counting channel, leaving only a small stream of air carrying insects to enter the narrow central infrared counting channel. This ensures the accuracy of the infrared counting module in detecting small insects, reduces the probability of missed detection, eliminates the need to increase the number and cost of sensors, meets the total ventilation requirements of the wind-suction insect trapping method, avoids problems such as high back pressure, insufficient airflow, and high noise caused by narrow channels, and balances insect trapping effect and counting accuracy.

[0019] (2) Through the partitioned structure design of the central insect guide cone, the smooth central solid wall insect guide area can guide the insect body to fall into the infrared counting channel in the center below along the cone surface. The outer ring insect-proof screen only allows airflow to pass through, blocking the insect body from entering the bypass. This realizes the spatial pre-separation of insects and air, avoids the situation where the insect body accidentally enters the bypass and cannot be counted, and improves the counting accuracy. It is not necessary to arrange a large number of dense infrared receivers in the large diameter channel. Instead, the insects are concentrated through the small diameter detection channel by the structure guide.

[0020] (3) By designing the anti-backflow and anti-reverse airflow components, the airflow or insects can be prevented from flowing back up into the infrared counting channel, causing repeated counting, thus ensuring the accuracy of the counting results and making the overall airflow direction more stable. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the outer shell of the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the pressure equalization cavity of the present invention;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the fan of the present invention;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the air bypass of the present invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the flow divider of the present invention;

[0027] Figure 7 This is a schematic diagram of the cross-sectional structure of the central guide cone of the present invention;

[0028] Figure 8 This is a schematic diagram of the cross-sectional structure of the diversion channel of the present invention;

[0029] Figure 9 This is a three-dimensional structural diagram of the anti-backflow and anti-reverse airflow component of the present invention;

[0030] Figure 10 This is a schematic diagram of the three-dimensional structure of the insect collection bucket of the present invention.

[0031] In the diagram: 1. Outer shell; 2. Top plate; 3. Insect inlet; 4. Insect collection chamber; 5. Attractant release area; 6. Hollow channel; 7. Front grille; 8. Insect attractant inlet; 9. Fan; 10. Pressure equalization chamber; 11. Central insect guide cone; 12. Insect-proof screen; 13. Air bypass; 14. Diverter; 15. Diverter channel; 16. Infrared counting module; 17. Infrared counting channel; 18. Backflow prevention and anti-backflow component; 19. Discharge port; 20. Protective shell; 21. Insect collection bucket. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figure 1 - Figure 2The present invention provides the following technical solution: a wind-suction insect trapping device with air-insect diversion and infrared counting, comprising a shell 1, a top plate 2 fixedly installed on the top of the shell 1, an insect inlet 3 and an insect-attracting inlet 8 on the surface of the top plate 2, and an inner hollow channel 6 coaxially arranged from top to bottom along the same vertical central axis, including an attractant release area 5, a front grille 7, a fan 9, a pressure equalization chamber 10, a diverter 14, and an infrared counting channel 17; the lower air outlet of the fan 9 is vertically sealed and connected to the pressure equalization chamber 10, the lower opening of the pressure equalization chamber 10 is directly opposite the diverter 14, and an integrated central insect-guided cone 11 is provided on the bottom surface of the pressure equalization chamber 10, the central insect-guided cone 11 being vertically located in the infrared counting channel 17. Above the outer counting channel 17, the central insect guide cone 11 is divided radially from the inside to the outside into a central solid-wall insect guide area and an outer ring insect-proof screen 12 bypass area with the vertical axis as the center. The rear side of the insect-proof screen 12 forms an annular air bypass 13, which connects to the diversion channel 15 inside the diversion component 14. The annular air bypass 13 is coaxially surrounded around the outer perimeter of the infrared counting channel 17. Infrared counting modules 16 are symmetrically installed on the outer walls of the left and right sides of the infrared counting channel 17. The lower end of the infrared counting channel 17 has an embedded anti-backflow and anti-return airflow component 18, the bottom of which is connected to the horizontal discharge port 19. The diversion channel 15 connects downward to the upper space of the insect collection chamber 4.

[0034] By dividing the airflow into two paths—the insect-carrying airflow and the bypass airflow—the insect-carrying airflow falls along the solid-walled insect-guiding area of ​​the central insect-guiding cone 11 and is guided into the narrow-diameter central infrared counting channel 17. The total airflow is small but the flow rate is stable, confining the insects within the narrow channel and effectively blocking the light path of the infrared counting module 16, significantly reducing the probability of missed detection of small flying insects. Meanwhile, most of the airflow generated by the fan 9 passes through the outer insect-proof screen 12 and is directly discharged to the insect collection chamber 4 below via the annular air bypass and diversion channel 15, bypassing the narrow infrared counting channel 17. This ensures sufficient total exhaust airflow from the fan 9 and stable suction at the inlet, while reducing the back pressure of the fan 9 and decreasing the noise of the equipment. It resolves the contradiction between insufficient airflow in traditional narrow-channel infrared detection and high missed detection rates in wide-channel detection, eliminating the need for additional infrared sensors. The arrangement of the insect traps reduces the signal processing complexity and manufacturing cost of the equipment. The insect trapping device uses a 13.3cm axial flow fan. A circular pressure equalization chamber 10 is set downstream of the fan. Below the pressure equalization chamber 10, a 45° central insect guide cone 11 is set. The outer ring of the central insect guide cone 11 is an insect-proof screen 12 with a mesh size of 0.6-0.8mm and a screen area of ​​about 100cm². The central area of ​​the central insect guide cone 11 is a smooth solid-walled insect guide area with a diameter of about 50mm. The center is connected to a 30mm diameter infrared counting channel 17. When the fan is working, the insects enter the pressure equalization chamber 10 with the airflow. Some air passes through the outer ring insect-proof screen 12 and enters the annular bypass chamber behind the screen, thereby reducing the back pressure. The insects are blocked by the insect-proof screen 12 and move along the cone-shaped surface to the center. They enter the 30mm infrared counting channel 17 through the central solid-walled insect guide area.

[0035] Example 2: Based on Example 1, this example solves the problem of existing insect-catching devices' inability to achieve airborne insect diversion. Please refer to [link to example]. Figure 2 - Figure 7 The air bypass 13 was also disclosed, and its specific structure is as follows: The central insect-guiding cone 11 is funnel-shaped with a wider top and a narrower bottom. The radial inner layer of the same cone surface is a smooth, non-porous, solid-walled insect-guiding area. An insect-proof screen 12 is fixedly installed in the radial outer ring. The diameter of the solid-walled insect-guiding area is smaller than the inner inner diameter of the annular area of ​​the insect-proof screen 12. The annular air bypass 13 is closely attached to the infrared counting channel 17 on the radial inner side and abuts against the inner wall of the outer shell 1 on the radial outer side. The entire structure is closed around the infrared counting channel 17. The infrared counting channel 17 is vertically and coaxially arranged on the central axis of the whole machine. The infrared counting modules 16 are symmetrically located on the left and right sides of the channel. The light paths of the transmitting end and the receiving end horizontally cross the hollow inner cavity of the infrared counting channel. The light paths are perpendicular to the vertical falling path of the insects. The anti-backflow and anti-reverse airflow component 18 is completely embedded in the inner cavity at the bottom of the infrared counting channel 17 and is vertically located at the junction of the infrared counting channel 17 and the discharge port 19. It only allows the insects to pass downward in one direction, blocking the airflow and preventing the insects from flowing upward.

[0036] When the equipment is running normally, after the fan 9 starts, a stable negative pressure is formed at the insect inlet 3 at the top of the outer casing 1. Insects attracted to the insect inlet 3 by the attractant are carried downwards by the airflow through the attractant release area 5, through the front grille 7, and into the fan 9. Then, they are discharged from the air outlet of the fan 9 into the lower equalizing chamber 10. The airflow inside the equalizing chamber 10 is diverted by the central insect guide cone 11 on the bottom surface. Most of the airflow passes directly through the outer insect screen 12 into the annular air bypass 13, and then through the diversion channel 15 into the bottom insect collection chamber 4, maintaining the smooth exhaust of the fan 9 and ensuring the stable suction of the insect inlet 3. The airflow carrying insects slides down the cone surface of the central insect guide cone 11 to the central solid wall insect guide area, and then falls along the insect guide area into the narrow-diameter infrared counting channel 17 set vertically in the center below. During the fall, the insects cross the horizontal light path of the infrared counting module 16, blocking the light path and triggering the counting signal. This system accurately counts the insects passing through. After counting, the insects continue to fall downwards, pushing aside the anti-backflow and anti-reverse airflow device 18 before falling into the discharge port 19 and finally entering the insect collection bucket 21 at the bottom for collection. Throughout the process, the airflow is diverted, so it does not need to be fully forced into the narrow infrared detection channel 17. This ensures that the infrared detection meets the requirements for channel narrowness, improves the detection accuracy of small insects, and reduces the missed detection rate. At the same time, it does not require an additional number of infrared sensors, thus controlling the manufacturing cost and signal processing difficulty of the equipment. In addition, adjustable baffles are set in the bypass area or bypass cavity outlet of the insect screen 12 to adjust the proportion of air passing through the screen bypass. The bypass opening can be set to 0%, 25%, 50%, 75%, etc. When the back pressure of the infrared counting channel 17 is high, the bypass opening can be increased. When there is a risk of insects staying or being missed at the bypass screen, the bypass opening can be decreased.

[0037] Example 3: Based on Example 1, this example solves the problem of clogging in existing insect-catching devices. Please refer to [link / reference]. Figure 3 - Figure 10 The infrared counting channel 17 was also disclosed, with the following specific structure: one end of the discharge port 19 is connected to the channel outlet below the anti-backflow and anti-reverse airflow component 18, and the other end is located above the insect collection bucket 21. A protective shell 20 is provided on the outer surface of the anti-backflow and anti-reverse airflow component 18. The insect collection bucket 21 is fixedly installed inside the insect collection chamber 4. The fan 9 is vertically positioned below the attractant release area 5 and directly above the pressure equalization chamber 10. The bottom air outlet end face of the fan 9 is completely sealed to the top opening of the pressure equalization chamber 10. The two are vertically connected along the same vertical line without lateral offset. The attractant release area 5 is vertically positioned below the top plate 2 and above the fan 9. The front grille 7 is horizontally placed between the attractant release area 5 and the fan 9, blocking the upper air intake section of the fan 9. An adjustable baffle is installed inside the diversion channel 15 near the air bypass 13. The baffle moves back and forth along the airflow direction of the diversion channel 15, and the size of the bypass ventilation area is adjusted by blocking the flow section. The insect path of the outer shell 1 is a single central vertical path, which runs coaxially from top to bottom through the central insect guide cone 11 and the infrared counting channel 17 without any lateral branches. The two airflows only converge inside the bottom insect collection bucket 21. The diversion component 14 achieves complete isolation between the insect and air spaces.

[0038] The central insect guide cone 11 achieves initial diversion of air and insects. The insects are blocked and restricted in the central area by the insect-proof screen 12, and will not be diverted in advance by the bypass airflow. This ensures that all insects can enter the central infrared counting channel 17 to complete the counting. The anti-backflow device 18 downstream of the infrared counting channel 17 can be a TPU cross membrane, silicone split soft curtain or lightweight flap. This anti-backflow device opens when the fan 9 is working and closes when the fan 9 stops or when backflow occurs in the insect collection bucket 21. After the insects enter the insect collection bucket 21, they rotate along the bucket wall and sink to the bottom of the bucket. The air is discharged from the fine mesh at the top of the bucket. This structure avoids the insects directly impacting the exhaust net and reduces the risk of the exhaust net being blocked.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wind-suction insect trapping device with airflow diversion infrared counting, comprising a housing (1), wherein a top plate (2) is fixedly installed on the top of the housing (1), characterized in that: The top plate (2) has an insect inlet (3) and an insect attractant inlet (8) on its surface. The hollow channel (6) inside the outer shell (1) is arranged coaxially from top to bottom with an attractant release area (5), a front grille (7), a fan (9), a pressure equalization chamber (10), a diverter (14), and an infrared counting channel (17). The lower air outlet of the fan (9) is vertically sealed and connected to the pressure equalization chamber (10). The lower opening of the pressure equalization chamber (10) is directly opposite the diverter (14). An integrated central insect guide cone (11) is provided on the bottom surface of the pressure equalization chamber (10). The central insect guide cone (11) is vertically located directly above the infrared counting channel (17). The central insect guide cone (11) is divided radially from the inside to the outside with the vertical axis as the center into a central solid wall insect guide area and an outer ring insect-proof screen (12) bypass area. The insect-proof screen (12) forms an annular air bypass (13) on its rear side. The air bypass (13) is connected to the diversion channel (15) inside the diversion component (14). The annular air bypass (13) is coaxially surrounded around the outer periphery of the infrared counting channel (17). Infrared counting modules (16) are symmetrically installed on the outer walls of the left and right sides of the infrared counting channel (17). A backflow prevention and anti-backflow component (18) is embedded in the lower end of the infrared counting channel (17). The bottom of the backflow prevention and anti-backflow component (18) is connected to the horizontal discharge port (19). The diversion channel (15) is connected downward to the upper space of the insect collection chamber (4).

2. The wind-suction insect trapping device with airflow diversion and infrared counting as described in claim 1, characterized in that: The central insect-guiding cone (11) is funnel-shaped with a wider top and a narrower bottom. The inner radial layer of the same cone surface is a smooth, solid-walled insect-guiding area without holes. An insect-proof screen (12) is fixedly installed around the entire radial outer ring. The diameter of the solid-walled insect-guiding area is smaller than the inner diameter of the annular area of ​​the insect-proof screen (12).

3. The wind-suction insect trapping device with airflow diversion and infrared counting as described in claim 1, characterized in that: The annular air bypass (13) is radially inner against the infrared counting channel (17) and radially outer against the inner wall of the outer shell (1), thus completely enclosing the infrared counting channel (17).

4. The wind-suction insect trapping device with airflow diversion and infrared counting as described in claim 3, characterized in that: The infrared counting channel (17) is vertically and coaxially arranged on the central axis of the whole machine. The infrared counting modules (16) are located symmetrically on the left and right sides of the channel. The optical paths of the transmitting end and the receiving end horizontally cross the hollow cavity of the infrared counting channel, and the optical paths are perpendicular to the vertical falling path of the insect.

5. A wind-suction insect trapping device with airflow diversion and infrared counting as described in claim 1, characterized in that: The anti-backflow and anti-reverse airflow component (18) is completely embedded in the bottom cavity of the infrared counting channel (17) and is located vertically at the junction of the infrared counting channel (17) and the discharge port (19). It only allows the insect body to pass downward in one direction, blocking the airflow and preventing the insect from flowing upward.

6. A wind-suction insect trapping device with airflow diversion and infrared counting as described in claim 5, characterized in that: One end of the discharge port (19) is connected to the channel outlet below the anti-backflow and anti-return component (18), and the other end is located on the upper part of the insect collection bucket (21). The outer surface of the anti-backflow and anti-return component (18) is provided with a protective shell (20), and the insect collection bucket (21) is fixedly installed inside the insect collection chamber (4).

7. A wind-suction insect trapping device with airflow diversion and infrared counting as described in claim 1, characterized in that: The fan (9) is vertically positioned below the inducer release area (5) and directly above the equalizing chamber (10). The bottom air outlet of the fan (9) is completely sealed to the top opening of the equalizing chamber (10). The two are connected vertically along the same vertical line without any lateral offset.

8. A wind-suction insect trapping device with airflow diversion and infrared counting as described in claim 1, characterized in that: The inducer release area (5) is vertically located below the top plate (2) and above the fan (9). The front grille (7) is horizontally placed between the inducer release area (5) and the fan (9), blocking the upper air intake section of the fan (9).

9. A wind-suction insect trapping device with airflow diversion and infrared counting as described in claim 1, characterized in that: An adjustable baffle is installed inside the diversion channel (15) near the air outlet of the air bypass (13). The baffle moves back and forth along the airflow direction of the diversion channel (15) to adjust the size of the bypass ventilation area by blocking the flow cross section.

10. A wind-suction insect trapping device with airflow diversion and infrared counting as described in claim 1, characterized in that: The insect path of the outer shell (1) is a single central vertical path, which runs coaxially from top to bottom through the central insect guide cone (11) and infrared counting channel (17) of the outer shell (1), without any lateral branches. The two airflows only converge inside the bottom insect collection bucket (21), and the insect and air space are completely isolated at the position of the diversion component (14).

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