A device for attracting and trapping insects for the control of forest pests

Abstract

The present application relates to the technical field of insect trapping devices, and discloses a forestry pest control insect trapping device, which comprises a ground support assembly and a trapping head capable of rotating around a vertical axis, wherein the trapping head is provided with a windward air inlet cover, a main wind guide channel, a tail wing, a differential pressure self-adjusting release trapping assembly, a horn-shaped inlet, a two-stage one-way door, a vertical insect falling channel and a collection cup; the upstream section of the main wind guide channel is provided with a first pressure tapping port, and the position close to the contraction throat is provided with a second pressure tapping port; after the pests enter, they pass through the two-stage one-way door, a guide falling plate and the vertical insect falling channel provided with a staggered anti-return plate in sequence and then enter the collection cup. The present application uses natural wind to complete direction alignment, differential pressure detection, release adjustment of trapping agents and odor delivery, reduces the dependence on motors, power grids and cleaning mechanisms, and helps to take into account the utilization of trapping agents, inlet guidance and anti-escape collection.

Description

Technical Field

[0001] This invention relates to the field of insect-attracting devices, specifically to an insect-attracting device for the prevention and control of forest pests and diseases. Background Technology

[0002] In the control of pests and diseases in forest areas, nurseries, and economic forests, sex pheromones, plant-derived attractants, pheromones, or light sources are commonly used to lure target pests to the vicinity of trapping devices. Existing mechanical trapping devices mostly employ a combination of a fixed lure box, a funnel inlet, and a collection bucket, or an electric net surrounding an insect-attracting lamp, followed by the removal of attached insects using brushes, scrapers, or other structures. While these structures can provide basic trapping functionality, their adaptability in environments with significant wind speed variations, limited power supply, and long-term unattended operation remains a concern.

[0003] On the one hand, the volatilization openings of conventional lure boxes are usually of a fixed area. When the wind speed in the forest is low, the air exchange around the lure is small, limiting the formation speed and propagation distance of the odor plume. On the other hand, when the wind speed increases, the fixed large-area volatilization openings cause a large amount of air to continuously sweep over the lure, easily leading to a significant increase in the rate of attractant consumption. Although using fans or heaters can actively enhance volatilization, it increases the requirements for power supply, control, and waterproofing. Moreover, their control logic is usually based on enhancing volatilization, making it difficult to make reverse mechanical adjustments to the attractant exposure area according to the strength of the natural wind.

[0004] On the other hand, some devices place the attractant inside the box or near the collection area. The odor diffuses from multiple locations such as gaps in the outer shell and ventilation holes. The location with the highest odor concentration does not completely coincide with the actual entry point for pests. After being attracted to the vicinity of the device, pests may still hover or linger along the outer shell surface, increasing the process of finding the entry point. Simply increasing the size of the funnel opening would reduce the escape-prevention effect; conversely, reducing the size of the entrance would restrict the passage of pests of different sizes.

[0005] Furthermore, when using electric nets as the main capture structure, insect bodies, scales, and secretions are easily left on the net and the insulating support parts. Subsequently, it is often necessary to brush, scrape, or wash the net, which increases the number of mechanical parts, electrical components, and maintenance operations. For devices that are dispersed in forest areas, it is necessary to further solve the problem of how to make the release of the attractant adapt to changes in natural wind conditions while minimizing the power mechanism, and how to make the odor outlet, pest entrance, and escape-proof collection path form a continuous structural relationship. Summary of the Invention

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a forestry pest and disease control insect-attracting device, comprising a ground support assembly and a trapping head disposed above the ground support assembly. Taking the device in its working state as a reference, the Z-axis is defined as the vertical direction, with the positive Z-axis pointing upwards; the direction from the windward air intake hood to the trumpet-shaped inlet is defined as the positive X-axis, and the opposite direction as the negative X-axis; the Y-axis is the left-right direction perpendicular to both the X-axis and the Z-axis.

[0007] The ground support assembly includes ground spikes, outriggers, a telescopic support rod, a rotating sleeve, and a locking knob. The ground spikes are located below the center of the device. Three sets of outriggers extend around the telescopic support rod to form a three-point support. The telescopic support rod is used to adjust the installation height of the trapping head. The rotating sleeve is fitted onto the upper end of the telescopic support rod and can rotate around the Z-axis. The locking knob is used to fix the telescopic support rod's telescopic position. The mounting frame is connected to the rotating sleeve and is used to support the various components of the trapping head.

[0008] The mounting frame includes a tail fin, windward air intake, blade deflector, main airflow channel, first pressure tap, throat, second pressure tap, differential pressure regulating cylinder, connecting hoses, sliding baffle, attractant drawer box, and guide rail assembly. The windward air intake is located at the negative X-direction end, the flared inlet at the positive X-direction end, and the main airflow channel between them. The first pressure tap is located upstream of the main airflow channel, and the second pressure tap is located near the throat. The first and second pressure taps are connected to the pressure chambers on both sides of the differential pressure regulating cylinder via connecting hoses.

[0009] The differential pressure regulating cylinder contains a piston, piston rod, and return spring. The piston rod is connected to a sliding baffle. The attractant drawer box is located below the main airflow duct and is pulled out along the Y-axis via a guide rail assembly. The top of the attractant drawer box has a evaporation window, and the sliding baffle is located above the evaporation window. The piston rod of the differential pressure regulating cylinder drives the sliding baffle to move linearly along the X-axis or in a direction parallel to the X-axis; the guide rail assembly guides the attractant drawer box to be pulled out along the Y-axis, thus allowing the adjustment and maintenance / disassembly / removal actions to spatially intersect without interference.

[0010] The downstream end of the main airflow channel connects to the release and confluence space formed around the funnel-shaped inlet, creating a circumferential release slit between the inner and outer rings of the funnel-shaped inlet. Air carrying the attractant odor exits through the circumferential release slit after passing through the release and confluence space, ensuring the odor outlet surrounds the funnel-shaped inlet. A double-stage unidirectional barrier is located behind the funnel-shaped inlet. This barrier consists of two stages spaced apart along the direction the pests enter. The barrier is connected to the channel shell via an upper hinge shaft and is restricted from reverse rotation by a limiting part.

[0011] A guide plate is installed after the double-stage unidirectional barrier. The guide plate slopes downward and connects to the vertical insect-falling channel. Inside the vertical insect-falling channel, there are at least two staggered anti-return plates, with adjacent anti-return plates extending downward from opposite side walls. The lower end of the vertical insect-falling channel is detachably connected to the collection cup via a collection cup connecting ring.

[0012] Beneficial effects

[0013] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0014] (1) The present invention utilizes the pressure difference formed between the first pressure tap and the second pressure tap to directly drive the differential pressure regulating cylinder. It does not require a separate electronic wind speed detector and a drive motor for adjusting the attractant window. When the natural wind increases, the sliding baffle can move in the direction of reducing the effective area of ​​the evaporation window. When the natural wind decreases, the return spring makes the evaporation window increase again, which helps to reduce the contradiction between the fast consumption of attractant under strong wind conditions and the insufficient odor exchange under weak wind conditions.

[0015] (2) The present invention directs the attractant airflow to the circumferential release slit outside the funnel-shaped inlet, so that the obvious release position of the attractant odor forms a coaxial correspondence with the actual insect trapping entrance. When the pests approach the device along the odor plume, they can directly reach the vicinity of the entrance, reducing the situation where the pests still need to search for the entrance a second time after the odor is randomly dispersed from the side of the box.

[0016] (3) The present invention forms a continuous path from horizontal entry to vertical insect landing by means of a double-stage one-way barrier, a guide plate, a staggered anti-return plate and a vertical insect landing channel, so that the pests after entering need to change their movement direction multiple times to escape in the opposite direction. This structure can reduce the dependence on electric shock nets, brushing motors and cleaning mechanisms, and help reduce the power supply and maintenance burden when the forest is long-term. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first perspective;

[0018] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the overall structure of the present invention from a second perspective;

[0020] Figure 4 For the present invention Figure 3 Enlarged view of point A;

[0021] Figure 5 For the present invention Figure 3 Enlarged view of point B;

[0022] Figure 6 For the present invention Figure 3 Enlarged view of point C.

[0023] In the diagram: 1. Ground stake; 2. Leg; 3. Telescopic support rod; 4. Rotating sleeve; 5. Locking knob; 6. Mounting frame; 7. Tail fin; 8. Windward air intake cover; 9. Leaf-proof net; 10. Main wind channel; 11. First pressure tap; 12. Throat; 13. Second pressure tap; 14. Differential pressure regulating cylinder; 15. Connecting hose; 16. Sliding baffle; 17. Attractant drawer box; 18. Guide rail assembly; 19. Horn-shaped inlet; 20. Double-stage one-way barrier; 21. Drop guide plate; 22. Anti-return plate; 23. Vertical insect drop channel; 24. Collection cup connecting ring; 25. Collection cup. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0025] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0026] like Figures 1 to 6 As shown, to achieve the above objectives, the present invention adopts the following technical solution: a forestry pest and disease control insect-attracting device, comprising a ground support assembly and a trapping head disposed above the ground support assembly. Taking the device in working condition as a reference, the Z-axis is defined as the vertical direction, with the positive Z-axis pointing upwards; the direction from the windward air intake hood to the trumpet-shaped inlet is defined as the positive X-axis, and the opposite direction as the negative X-axis; the Y-axis is the left-right direction perpendicular to both the X-axis and the Z-axis.

[0027] The ground support assembly includes ground spikes 1, outriggers 2, telescopic support rods 3, rotating sleeves 4, and locking knobs 5. Ground spikes 1 are located below the center of the device. Three sets of outriggers 2 are spread around the telescopic support rods 3 to form a three-point support. The telescopic support rods 3 are used to adjust the installation height of the trapping head. The rotating sleeves 4 are sleeved on the upper end of the telescopic support rods 3 and can rotate around the Z-axis. The locking knobs 5 are used to fix the telescopic position of the telescopic support rods 3. The mounting frame 6 is connected to the rotating sleeves 4 and is used to support the various components of the trapping head.

[0028] The mounting frame 6 is equipped with a tail fin 7, a windward air intake hood 8, a leaf guard 9, a main airflow channel 10, a first pressure tap 11, a throat 12, a second pressure tap 13, a differential pressure regulating cylinder 14, a connecting hose 15, a sliding baffle 16, an attractant drawer box 17, and a guide rail assembly 18. The windward air intake hood 8 is located at the negative X-direction end, the horn-shaped inlet 19 is located at the positive X-direction end, the main airflow channel 10 is located between the two, the first pressure tap 11 is located in the upstream section of the main airflow channel 10, and the second pressure tap 13 is located near the throat 12. The first pressure tap 11 and the second pressure tap 13 are respectively connected to the pressure chambers on both sides of the differential pressure regulating cylinder 14 through the connecting hose 15.

[0029] The differential pressure regulating cylinder 14 is equipped with a piston, piston rod, and return spring. The piston rod is connected to the sliding baffle 16. The attractant drawer box 17 is located below the main air duct 10 and is pulled out along the Y-axis direction through the guide rail assembly 18. The top of the attractant drawer box 17 is provided with a volatilization window, and the sliding baffle 16 is located above the volatilization window. The piston rod of the differential pressure regulating cylinder 14 drives the sliding baffle 16 to move linearly along the X-axis direction or in a direction parallel to the X-axis. The guide rail assembly 18 guides the attractant drawer box 17 to be pulled out along the Y-axis direction, so that the adjustment action and the maintenance disassembly action intersect each other in space without causing motion interference.

[0030] The downstream end of the main airflow channel 10 is connected to the release and confluence space formed around the funnel-shaped inlet 19. A circumferential release slit is formed between the inner and outer rings of the funnel-shaped inlet 19. Air carrying the attractant odor is discharged through the circumferential release slit after passing through the release and confluence space, so that the odor outlet is set around the funnel-shaped inlet 19. A double-stage one-way barrier 20 is provided on the rear side of the funnel-shaped inlet 19. The double-stage one-way barrier 20 includes two barriers that are spaced back and forth along the direction of pest entry. The barrier is connected to the channel shell through the upper hinge shaft and is restricted from reverse flipping by the limiting part.

[0031] A guide plate 21 is installed after the double-stage one-way barrier 20. The guide plate 21 is inclined downward and connected to the vertical insect drop channel 23. At least two anti-return plates 22 are installed inside the vertical insect drop channel 23. Adjacent anti-return plates 22 extend downward from the opposite side wall. The lower end of the vertical insect drop channel 23 is detachably connected to the collection cup 25 through the collection cup connecting ring 24.

[0032] Working principle and usage process of this invention:

[0033] When setting up the device, prioritize well-ventilated, relatively open areas in woodlands or grasslands where target pests are active. Avoid tall vegetation blocking the wind-facing air intake hood 8 and the trumpet-shaped inlet 19, and avoid locations directly impacted by strong gusts of wind. First, deploy the three sets of outriggers 2 to ensure stable contact with the ground. Then, insert the ground stakes 1 into the soil. Next, adjust the height of the trapping head using the telescopic support rod 3 and fix the height using the locking knob 5. In areas with soft soil or strong winds, connect one end of the cable to the lower part of the outrigger 2 or the telescopic support rod 3, and fix the other end to the ground anchor point. Tension the cable evenly from different directions to prevent it from restricting the rotation of the rotating sleeve 4. The ground stakes 1, outriggers 2, and cable together form a windproof and anti-tipping support. This step of stabilizing the support first is necessary because the trapping head needs to rotate around the rotating sleeve 4. If the bottom support is unstable, the wind-induced turning will cause the entire machine to shake.

[0034] After fixing, select the lure according to the target pest. When a single lure is placed in the lure drawer box 17, the single lure releases an attractant odor that matches a specific target pest, achieving targeted attraction. When multiple target pests need to be attracted, after confirming that different lures can be used in combination, place multiple lures corresponding to different target pests at intervals in the lure drawer box 17. Multiple lures release different attractant odors at the same time to expand the range of pests attracted. After the lures are placed, push the lure drawer box 17 back to the working position along the guide rail assembly 18 and confirm that the collection cup 25 is installed in place through the collection cup connecting ring 24, so that the attractant release path and the insect collection path are in working condition.

[0035] After the natural wind acts on the tail fin 7, the tail fin 7 generates a rotational torque on one side of the rotation axis, causing the mounting frame 6, together with the windward air intake 8, the main air passage 10 and the horn-shaped inlet 19, to rotate around the Z-axis until the windward air intake 8 is basically facing the direction of the wind. This action first establishes a stable air intake direction, which creates a basis for the subsequent formation of repeatable pressure tapping conditions in the main air passage 10, while making the horn-shaped inlet 19 located on the relatively leeward side.

[0036] Subsequently, natural wind enters the main wind channel 10 through the windward air intake hood 8 and the leaf guard 9, creating a velocity and pressure difference between the main body section and the throat 12. The first pressure tap 11 and the second pressure tap 13 respectively transmit the pressure at the two positions to both sides of the differential pressure regulating cylinder 14 via the connecting hose 15. When the wind speed is high, the pressure difference between the two pressure chambers increases, and the piston drives the sliding baffle 16 to increase the coverage of the evaporation window. When the wind speed decreases, the return spring pushes the sliding baffle 16 back, and the evaporation window increases. The stable windward direction formed in the previous step allows the pressure difference change here to correspond more directly to the change of external natural wind.

[0037] Part of the airflow passing through the evaporation window sweeps over one or more lures in the attractant drawer box 17 and carries the attractant odor into the downstream release confluence space, and finally exits from the circumferential release slits around the funnel-shaped inlet 19; a single lure forms an odor plume targeting one type of pest, and multiple lures form an odor plume containing multiple attractant odors, thereby achieving specific trapping or trapping multiple pests respectively; since the odor outlet is around the insect trapping inlet, pests can directly reach the funnel-shaped inlet 19 when they approach along the odor plume, without having to search for the inlet again on the side wall of the device;

[0038] After the pests enter the funnel-shaped entrance 19, they push open the double-stage one-way barrier 20 in sequence. After the first barrier closes, it forms the first escape barrier. The pests continue to enter and push open the second barrier. The joints of the two barriers are staggered, so that even if the pests turn around, it is not easy for them to return in a straight line. After passing through the second barrier, the guide plate 21 guides the pests from horizontal movement to the vertical insect dropping channel 23, creating conditions for gravity collection.

[0039] When pests move downwards along the vertical insect-falling channel 23, they successively bypass the staggered anti-return plates 22 and fall into the collection cup 25. If pests attempt to return upwards, they need to repeatedly change direction to bypass the anti-return plates 22 and then pass through two levels of one-way barriers 20. The return path is significantly increased. Combined with the side wall restriction of the collection cup 25, the pests are kept within the collection area. During inspection, staff remove the collection cup 25 through the collection cup connecting ring 24, clean and dispose of the pests in the cup, and pull out the attractant drawer box 17 from the side of the guide rail assembly 18. When the attractant reaches the marked expiration date or the attraction effect significantly decreases, it should be replaced. Waste attractants should be collected and disposed of in accordance with the product instructions and local waste management requirements. They must not be discarded, buried, burned, or poured into water bodies.

[0040] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A forestry pest and disease control insect-attracting device, comprising a telescopic support rod (3), characterized in that: The telescopic support rod (3) is provided with a rotating sleeve (4) at its upper end. The rotating sleeve (4) is provided with a mounting frame (6) at its top end. The mounting frame (6) is provided with a windward air intake hood (8) at one end. The windward air intake hood (8) is provided with a leaf-proof net (9) inside. The mounting frame (6) is provided with a tail fin (7) at its top end. The windward air intake hood (8) is provided with a main airflow channel (10) at one end. The main airflow channel (10) is provided with a throat (12) at one end. The main airflow channel (10) is provided with a first pressure tap (11) on the outside. The throat (12) is provided with a second pressure tap (13) on the outside. The main airflow channel (10) is provided with a differential pressure regulating cylinder (14) at its bottom end. The differential pressure regulating cylinder (14) is connected to the first pressure tap (11) and the second pressure tap (13) by a connecting hose (1). 5) Connect the components. One end of the differential pressure regulating cylinder (14) is provided with a sliding baffle (16). The bottom end of the main air channel (10) is provided with an attractant drawer box (17). The two sides of the attractant drawer box (17) are provided with guide rail assemblies (18). The end of the main air channel (10) away from the windward air intake hood (8) is provided with a horn-shaped inlet (19). One end of the horn-shaped inlet (19) is provided with a double-stage one-way barrier (20). The bottom end of the double-stage one-way barrier (20) is provided with a guide plate (21). The bottom end of the guide plate (21) is provided with a vertical insect drop channel (23). The inside of the vertical insect drop channel (23) is provided with an anti-return plate (22). The bottom end of the vertical insect drop channel (23) is provided with a collection cup connecting ring (24). The bottom end of the collection cup connecting ring (24) is provided with a collection cup (25).

2. The insect-attracting device for forestry pest and disease control according to claim 1, characterized in that: The telescopic support rod (3) has a ground nail (1) at its bottom end. Three sets of support legs (2) are provided on the outer side of the bottom end of the telescopic support rod (3). The three sets of support legs (2) are arranged around the telescopic support rod (3). A locking knob (5) is provided on the outer side of the telescopic support rod (3).

3. The insect-attracting device for forestry pest and disease control according to claim 1, characterized in that: The rotating sleeve (4) is sleeved on the outer side of the upper end of the telescopic support rod (3), the mounting frame (6) is set at the top of the rotating sleeve (4), and the tail wing (7) is set on the outer side of the mounting frame (6), so that the mounting frame (6) can rotate relative to the telescopic support rod (3) through the rotating sleeve (4).

4. The insect-attracting device for forestry pest and disease control according to claim 1, characterized in that: The first pressure tap (11) is located on the side of the main air passage (10) near the windward air intake hood (8), and the second pressure tap (13) is located outside the throat (12). The first pressure tap (11) and the second pressure tap (13) are respectively connected to the differential pressure regulating cylinder (14) through connecting hoses (15).

5. The insect-attracting device for controlling forest pests and diseases according to claim 1, characterized in that: The differential pressure regulating cylinder (14) is connected to the sliding baffle (16), which is located above the attractant drawer box (17). The attractant drawer box (17) is provided with guide rail assemblies (18) on both sides, and the attractant drawer box (17) can be pulled out and moved along the guide rail assemblies (18).

6. The insect-attracting device for forestry pest and disease control according to claim 1, characterized in that: The opening area of ​​the windward air intake hood (8) at the end away from the main wind channel (10) is larger than the opening area at the end close to the main wind channel (10), and the leaf-proof net (9) is set between the windward air intake hood (8) and the main wind channel (10).

7. The insect-attracting device for controlling forest pests and diseases according to claim 1, characterized in that: The throat (12) is located between the main air passage (10) and the horn-shaped inlet (19). The flow cross-sectional area of ​​the throat (12) is smaller than that of the main air passage (10). The periphery of the horn-shaped inlet (19) is provided with a release slit for discharging the airflow carrying the attractant odor.

8. The insect-attracting device for forest pest and disease control according to claim 1, characterized in that: The double-stage one-way barrier (20) is set between the trumpet-shaped entrance (19) and the vertical insect drop channel (23). The double-stage one-way barrier (20) includes two sets of barriers that are spaced apart along the direction in which the pests enter. The guide plate (21) is inclined at the bottom of the double-stage one-way barrier (20) and is inclined downward toward the direction of the vertical insect drop channel (23).

9. The insect-attracting device for forest pest and disease control according to claim 1, characterized in that: The vertical insect-falling channel (23) is provided with at least two sets of anti-return plates (22). The two sets of anti-return plates (22) are respectively inclined downward from the inner walls of opposite sides of the vertical insect-falling channel (23), and the two sets of anti-return plates (22) are staggered with each other along the vertical direction of the vertical insect-falling channel (23).

10. The insect-attracting device for controlling forest pests and diseases according to claim 1, characterized in that: The collecting cup connecting ring (24) is located at the bottom of the vertical insect drop channel (23), and the collecting cup (25) is located at the bottom of the collecting cup connecting ring (24). The collecting cup (25) is detachably connected to the vertical insect drop channel (23) through the collecting cup connecting ring (24).

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