Self-cleaning structure of an electric shock insect killing device

Abstract

The application discloses a self-cleaning structure of an electric shock type insect killing device and belongs to the technical field of electric shock type insect killing devices. The self-cleaning structure comprises an electric shock assembly, a driving assembly, a high-voltage generating module and a central control module. The electric shock assembly is composed of a fixed metal assembly and a movable metal assembly, both of which comprise a plurality of metal rods, and the metal rods are arranged in a ring shape in a staggered manner, and the cross section of the metal rods is a center-symmetrical convex profile arranged at an angle of 45 degrees. The movable metal assembly is driven by the driving assembly to reciprocate at a small angle, so that adjacent metal rods are alternately contacted and scraped, and the outer circumferential surface is fully covered and cleaned. The central control module coordinates the cleaning and electric shock time sequence, cuts off the high voltage before cleaning, resets the position after cleaning and restores the power supply, thereby ensuring safety. The structure does not need consumable parts, is completely cleaned, simple in structure, suitable for the electric shock type insect killing device which is used outdoors and operated for a long time, and improves the reliability and maintenance-free property of the device.

Description

Technical Field

[0001] This invention relates to the field of electric shock insecticidal equipment technology, specifically to a self-cleaning structure for an electric shock insecticidal device. Background Technology

[0002] In the fields of agricultural planting, forestry protection, and public environmental pest control, electric shock insecticides are widely used in green pest control work due to their characteristics of not requiring chemical agents and having high killing efficiency. The core working component of such equipment is the electric shock component, which forms a high-voltage electric field between metal electrodes through a high-voltage generation module. When an insect comes into contact with the electrode, a high-voltage current instantly kills it.

[0003] The existing technology has the following drawbacks: 1. Most existing insecticidal devices for plant protection use light sources to attract pests to their vicinity. When the insects come into contact with the device, they are electrocuted. However, most of the dead insects fall directly onto the device, and some even adhere to its surface. Over time, this accumulation leads to insect buildup, making cleaning difficult and affecting the device's practicality and subsequent effectiveness. 2. Existing patents cannot ensure that insect corpses accurately enter the collection area during the cleaning process. This causes insect corpses to easily fall into areas other than the collection area, affecting the cleanliness of the insecticidal lamp. To overcome the first drawback, existing technology (Chinese patent application number 202511079632.6, application date 2025-08-04) discloses an automatic cleaning mechanism for a plant protection insecticidal device. A motor drives a threaded rod to rotate, which in turn causes two sleeve rods to passively move downwards, thereby driving the corresponding... The sponge pad moves downwards. Because the lower sponge pad is a hard sponge, it can simultaneously scrape the outer walls of the electric shock net and the lamp panel, removing some dead mosquitoes attached to the surface. The upper sponge pad, being a soft sponge, can wipe the outer walls of the electric shock net and the lamp panel, thus achieving a double-layer cleaning effect and solving the first defect mentioned above. To overcome the second defect, the prior art (Chinese patent application number 202310649361.8, application date 2023-06-02) discloses an electric shock insecticidal lamp with automatic insect removal function. A rotating drive component drives each cleaning component to rotate around the circumference of the electric grid. The cleaning components clean the dead mosquitoes on the electric grid. At the same time, the cleaning components can guide and transport the collected dead mosquitoes towards the collection box, so that the cleaned dead mosquitoes can quickly enter the collection box, improving collection efficiency and cleanliness, thus solving the second defect mentioned above.

[0004] While existing technologies 1 and 2 can overcome the aforementioned shortcomings, the self-cleaning structure of existing insecticidal lamps is still relatively complex. The methods described above require additional consumable components for cleaning the electric grid, such as cleaning brushes and sponges. When these consumable components are worn out due to repeated use, their cleaning ability will decrease, making them unsuitable for long-term continuous use. Some insecticidal lamp designs utilize the relative displacement between the positive and negative electrodes of the electric shock component to clean the insect carcasses adhering between the positive and negative electrodes. However, this level of cleaning effect is limited; it can only cause the insect carcasses between the positive and negative electrodes to break off and fall off naturally. It cannot handle insect carcasses that are individually adhered to the positive or negative electrodes. Furthermore, this design relies on the natural impact of insects and wind, which introduces many uncontrollable factors, making it impossible to guarantee the cleaning effect.

[0005] To address the aforementioned issues, there is an urgent need for innovative design based on existing equipment. Therefore, we have proposed a self-cleaning structure that requires no consumable parts, has a comprehensive cleaning range, and is simple and reliable in structure, in order to meet the requirements for long-term stable operation of outdoor electric shock insecticide equipment. Summary of the Invention

[0006] The purpose of this invention is to provide a self-cleaning structure for an electric shock insecticidal device, addressing the aforementioned issues. Currently available self-cleaning structures for insecticidal lamps on the market are still relatively complex. These methods require additional consumable components for cleaning the electric grid, such as cleaning brushes and sponges. When these consumable components are worn out from repeated use, their cleaning ability decreases, making long-term continuous use inconvenient. Some insecticidal lamps utilize the relative displacement between the positive and negative electrodes of the electric shock component to clean insect carcasses adhering to them. However, this level of cleaning effect is limited; it can only break off insect carcasses between the electrodes and allow them to fall off naturally, but it cannot handle insect carcasses adhering solely to the positive or negative electrode. Furthermore, this design relies on the natural impact of insects and wind, introducing many uncontrollable factors and compromising the cleaning effect.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a self-cleaning structure for an electric shock insecticidal device, comprising an electric shock component, a drive component, a high-voltage generating module, and a central control module.

[0008] The electric shock assembly includes a fixed metal assembly and a movable metal assembly, and both the fixed metal assembly and the movable metal assembly include multiple metal rods. The fixed metal assembly is fixedly installed on the support housing of the equipment, and the movable metal assembly is connected to the drive assembly for transmission.

[0009] The electric shock component is connected to the drive component via a transmission, and the central control module is electrically connected to both the drive component and the high voltage generating module to coordinate their working sequence and ensure operational safety.

[0010] The high-voltage generating module is used to apply a high voltage to the surface of the metal rod of the electric shock assembly to achieve electric shock and kill insects upon contact.

[0011] Preferably, the fixed metal component and the movable metal component have multiple metal rods with the same non-circular cross-section and are arranged in a ring array at intervals along the same circumference. The metal rods of the fixed metal component and the metal rods of the movable metal component are arranged alternately, and adjacent metal rods are close to each other in the radial direction.

[0012] Preferably, the cross-section of the metal rod has a centrally symmetrical convex profile, and its principal axis of symmetry is inclined at 45° relative to the direction of movement of the movable metal component. Assuming the metal rod extends along the Z-axis and the direction of movement of the movable metal component 3 is the X-axis, then the maximum width of the metal rod's cross-section in the XY plane is along a straight line. (i.e., at +45° to the X-axis), the minimum width direction is along a straight line. (That is, at -45° to the X-axis).

[0013] Preferably, the cross-section of the metal rod is a rotational ellipse structure, specifically an ellipse rotated counterclockwise by 45° around its center, in a local coordinate system. The equation of the ellipse is:

[0014]

[0015] Where the major axis along Direction: Rotate the ellipse counterclockwise by 45° around the origin to obtain the coordinates in the global coordinate system. The implicit equation of the contour in (x is the translation direction) is:

[0016]

[0017] Where a ranges from 3mm to 8mm, and b ranges from 1mm to 3mm.

[0018] Preferably, the cross-section of the metal rod is a rounded rhombus or spindle shape, with its four vertices located at... and The coordinate position after a 45° rotation, i.e., the actual vertex location. The four sharp corners are rounded with a radius of r, and the shape is widest in the ±45° direction and narrowest in the 0° and 90° directions.

[0019] Preferably, the cross-section of the metal rod is a rotated hyperellipse (Lamé curve) structure, specifically a hyperellipse rotated 45° counterclockwise around its center, with the equation in the global coordinate system (x,y) as follows:

[0020]

[0021] in, The value of A ranges from 3mm to 8mm, the value of B ranges from 1mm to 3mm, and the value of n ranges from 1.2 to 3.0.

[0022] Preferably, the drive assembly includes a DC geared motor, a transmission connector, and a limit and reset structure. The DC geared motor is fixedly installed on the support housing, and its output shaft is coaxially connected to the drive ring of the movable metal assembly through the transmission connector. The DC geared motor is controlled to rotate forward and reverse, driving the movable metal assembly to reciprocate around the central axis of the annular array within a preset angle range.

[0023] Preferably, the transmission connection is a coupling, and the speed range of the DC geared motor is 5 r / min-30 r / min, with an output torque of not less than 0.5 N·m.

[0024] Preferably, the limiting and resetting structure includes a reference stop block and a positioning lug. The reference stop block is fixed on the support housing, and the positioning lug is disposed on the output shaft of the drive ring or the DC geared motor.

[0025] Preferably, the limiting and resetting structure consists of a first stop block and a second stop block fixedly connected to the support housing. The first stop block defines the limit position of forward rotation, and the second stop block defines the limit position of reverse rotation. The reference position is located at the midpoint between the two stop blocks.

[0026] Compared with the prior art, the beneficial effects of this invention are: the self-cleaning structure of this electric shock insecticidal device drives the movable metal component to reciprocate at a small angle through a drive component, causing adjacent metal rods to alternately contact and scrape, achieving full coverage cleaning of the outer circumference; the central control module coordinates the cleaning and electric shock sequence, cutting off the high voltage before cleaning and resetting the device after cleaning before restoring power supply, ensuring safety. This structure requires no consumable parts, cleans thoroughly, and has a simple structure, making it suitable for electric shock insecticidal devices that operate outdoors for extended periods, and improving the reliability and maintenance-free nature of the equipment. Specific details are as follows:

[0027] 1. This invention achieves cleaning through the structural design and relative movement of the metal rod itself, eliminating the need for consumable parts such as brushes, sponges, and scrapers. This fundamentally avoids the problem of reduced cleaning ability due to wear, aging, or blockage of consumables. At the same time, it reduces the number of moving parts, simplifies the structure, and lowers the maintenance cost and probability of failure of the equipment, making it suitable for long-term unattended outdoor scenarios.

[0028] 2. By designing the cross-section of the metal rod as a 45° inclined convex profile, and in conjunction with the reciprocating rotation of the movable metal components, adjacent metal rods alternately contact and slide against each other on both sides, achieving full coverage scraping of the entire outer circumference of the metal rod, effectively removing stubborn adhesives, and resulting in a more thorough cleaning effect.

[0029] 3. The central control module adopts the control logic of "power off before cleaning - reset after cleaning - power restored", which avoids high voltage breakdown and arcing caused by changes in spacing during the relative movement of the metal rods, or short circuit caused by energization when the metal rods come into contact. In addition, the limit reset structure ensures that the metal rods can return to the safe distance after each cleaning, maintain stable electric shock performance, and significantly improve the electrical safety and operational stability of the equipment.

[0030] 4. The movable metal component of the present invention achieves cleaning through reciprocating rotation at a small angle, without the need for axial movement space, resulting in a more compact structure. Furthermore, the ring array design of the metal rods allows for flexible adjustment of the number and cross-sectional parameters of the metal rods according to the size of the equipment, making it suitable for electric shock insecticidal devices of different power and volume. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a cross-sectional structural diagram of the supporting shell of the present invention;

[0033] Figure 3 This is an exploded structural diagram of the drive component and the movable metal component of the present invention;

[0034] Figure 4 This is a schematic diagram of the elliptical cross-section of the fixed metal component and the movable metal component of the present invention;

[0035] Figure 5 This is a schematic diagram of the spindle-shaped cross-section of the fixed metal component and the movable metal component of the present invention;

[0036] Figure 6 This is a schematic diagram of the structure of the reference stop block and the positioning lug of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the first stop block and the second stop block of the present invention;

[0038] Figure 8 This is a schematic diagram of the system structure of the present invention.

[0039] In the figure: 1. Support housing; 2. Fixed metal assembly; 3. Movable metal assembly; 4. Drive ring; 5. Drive assembly; 6. Coupling; 7. Reference stop block; 8. Positioning lug; 9. High voltage generating module; 10. Central control module; 11. First stop block; 12. Second stop block. Detailed Implementation

[0040] 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.

[0041] Example 1: Please refer to Figures 1-8 As shown, the existing self-cleaning structure of insecticidal lamps is still relatively complex. The above methods require additional consumable components for cleaning the electric grid, such as cleaning brushes and sponges. When these consumable components are worn out due to repeated use, their cleaning ability will decrease, making them unsuitable for long-term continuous use. Some insecticidal lamp designs utilize the relative displacement between the positive and negative poles of the electric shock component to clean the insect carcasses adhering between the positive and negative poles. However, this level of cleaning effect is limited. It can only break the insect carcasses between the positive and negative poles and allow them to fall off naturally. It cannot handle insect carcasses that are individually adhered to the positive or negative poles. Moreover, this design relies on the natural impact of insects and wind force, which have many uncontrollable factors, and the cleaning effect cannot be guaranteed. In order to solve this technical problem, this embodiment discloses the following technical content: an electric shock insecticidal device, including an electric shock component, a drive component 5, a high voltage generating module 9, and a central control module 10.

[0042] The electric shock assembly includes a fixed metal assembly 2 and a movable metal assembly 3, both of which include multiple metal rods. The fixed metal assembly 2 is fixedly installed on the support housing 1 of the equipment, and the movable metal assembly 3 is connected to the drive assembly 5. The electric shock assembly is connected to the drive assembly 5, and the central control module 10 is electrically connected to the drive assembly 5 and the high-voltage generating module 9 respectively to coordinate the working sequence of the two and ensure operational safety. The high-voltage generating module 9 is used to apply high voltage to the surface of the metal rods of the electric shock assembly to achieve electric shock and kill insects upon contact.

[0043] During operation, the drive assembly 5 drives the movable metal assembly 3 to rotate around the center at a certain angle (e.g., 10°-30°), causing the metal rods of the fixed metal assembly 2 and the movable metal assembly 3 to form parallel contact and relative sliding in a local area, thereby scraping away contaminants adhering to one side of their outer surfaces. Subsequently, the drive assembly 5 drives the movable metal assembly 3 to rotate in the opposite direction by the same angle, causing the metal rods of the two to form a new parallel contact area on the other side, completing the cleaning of the remaining surface. In summary, this structure can automatically clean the entire circumference surface simply by rotating the movable metal assembly 3.

[0044] It should be noted that, since the metal rods are distributed along the circumference and have a large radius of rotation, within a small angular swing range, the relative motion trajectory between adjacent rods is approximately a linear translation along a direction perpendicular to the rod axis. Therefore, it can effectively simulate the lateral translation contact effect and achieve stable, low-wear scraping cleaning.

[0045] In addition, the support shell 1 is composed of a top plate, a bottom plate and connecting columns axially distributed between them. A rain shelter is also installed at the top of the top plate to protect the drive assembly 5 from rain. An insect collection tube is also provided in the middle of the bottom plate to collect the corpses of insects killed by the electric shock assembly.

[0046] Example 2: The technical content disclosed in this example is a further improvement on the basis of Example 1 above. The technical content disclosed in this example is as follows: multiple metal rods of the fixed metal component 2 and the movable metal component 3 have the same non-circular cross-section and are arranged in a ring array at intervals along the same circumference. The metal rods of the fixed metal component 2 and the metal rods of the movable metal component 3 are arranged alternately, and two adjacent metal rods are close to each other in the radial direction.

[0047] Specifically, the cross-section of the metal rod has a centrally symmetrical convex profile, and its principal axis of symmetry is inclined at 45° relative to the direction of movement of the movable metal component 3. Assuming the metal rod extends along the Z-axis and the direction of movement of the movable metal component 3 is the X-axis, then the maximum width of the metal rod's cross-section in the XY plane is along a straight line. (i.e., at +45° to the X-axis), the minimum width direction is along a straight line. (i.e., at -45° to the X-axis), when one metal rod moves along the +X direction to contact another, the two first form a point or short line contact in the "upper left to lower right" area of ​​the cross section (such as the 135° and 315° positions); when the rod continues to move in the opposite direction along the -X direction (for example, to reset or to continue moving past the center), the contact area shifts to the "upper right to lower left" area (such as the 45° and 225° positions). In this way, through a complete reciprocating translation stroke, the entire outer circumferential surface of the two metal rods can be scraped twice to complete a thorough cleaning.

[0048] Furthermore, the specific structure of the metal rod's cross-section can be any of the following: a rotated elliptical structure, a rounded rhombus or spindle-shaped structure, or a rotated superelliptical structure, as detailed below:

[0049] Rotated elliptical structure: The cross-section is an ellipse rotated counterclockwise by 45° around the center, in the local coordinate system. The equation of the ellipse is:

[0050]

[0051] Where the major axis along Direction: Rotate the ellipse counterclockwise by 45° around the origin to obtain the coordinates in the global coordinate system. The implicit equation of the contour in (x is the translation direction) is:

[0052]

[0053] Where a ranges from 3mm to 8mm, and b ranges from 1mm to 3mm.

[0054] Rounded rhombus or spindle-shaped structure: its four vertices are located at... and The coordinate position after a 45° rotation, i.e., the actual vertex location. The four sharp corners are rounded with a radius of r to form a smooth transition convex profile. The radius r ranges from 0.5mm to 2mm, and the radius d ranges from 4mm to 10mm. This shape is widest in the ±45° direction and narrowest in the 0° and 90° directions. When translating along the X direction, contact first occurs in the left rounded corner area, and when translating in the opposite direction, it occurs in the right rounded corner area, thus achieving double-sided cleaning.

[0055] Rotated hyperellipse (Lamé curve) structure: The cross-section is a hyperellipse rotated counterclockwise by 45° around the center. Its equation in the global coordinate system (x,y) is:

[0056]

[0057] in, The value of A ranges from 3mm to 8mm, the value of B ranges from 1mm to 3mm, and the value of n ranges from 1.2 to 3.0. By adjusting the index n, the transition of the contour from a near-rhomboid shape (n≈1) to a near-elliptical shape (n=2) can be controlled to adapt to the different hardness of the adhering substances and the cleaning power requirements.

[0058] Example 3: The technical content disclosed in this example is a further improvement on the basis of Example 2 above. The technical content disclosed in this example is as follows: The drive component 5 includes a DC geared motor, a transmission connector and a limit reset structure. The DC geared motor is fixedly installed on the top plate of the support housing 1. Its output shaft is coaxially connected to the drive ring 4 of the movable metal component 3 through the transmission connector. The transmission connector is a coupling 6 or a pin. The speed range of the DC geared motor is 5r / min-30r / min, and the output torque is not less than 0.5N・m. The DC geared motor is controlled to rotate forward and reverse, driving the movable metal component 3 to reciprocate around the central axis of the annular array within a preset angle range (e.g., 10°-30°).

[0059] When the DC geared motor rotates forward, the movable metal component 3 rotates in the first direction by a first preset angle (e.g., +15°), so that the movable metal rod contacts and slides with the adjacent fixed metal rod on the first side, scraping off the adhering material on the surface of that side; then the DC geared motor rotates in reverse, and the movable metal component 3 rotates in the second direction by a second preset angle (e.g., -15°), so that the metal rod contacts and slides on the second side, completing the cleaning of the other side surface.

[0060] The preset angle is set according to the cross-sectional shape and spacing of the metal rods to ensure effective scraping contact at both extreme positions, while avoiding interference with other non-adjacent rods. The forward and reverse rotation of the DC geared motor is automatically switched by the control circuit based on timing signals or angle feedback signals. The entire cleaning cycle requires no manual intervention. In summary, this drive method has a simple structure, rapid response, and precise control. Moreover, the DC geared motor itself has a large output torque and low speed, which can directly drive the load without the need for additional deceleration or complex transmission mechanisms.

[0061] The limit reset structure includes a reference stop block 7 and a positioning lug 8. The reference stop block 7 is fixed on the top plate of the support housing 1, and the positioning lug 8 is set on the drive ring 4 or the output shaft of the DC geared motor. After each cleaning stroke of the movable metal component 3, the central control module 10 will control the DC geared motor to rotate slightly, so that the positioning lug 8 contacts the reference stop block 7, and return the movable metal component 3 to the reference position. The gap between adjacent metal rods corresponding to the reference position is maintained at 0.8cm-2cm according to the size of the insect, ensuring that the spacing between the metal rods is consistent and the electrical performance is stable before each power-on.

[0062] The limit reset structure can also be composed of a first stop block 11 and a second stop block 12 fixedly connected to the top plate of the support housing 1. The first stop block 11 limits the limit position of the movable metal component 3 in the forward rotation, and the second stop block 12 limits the limit position of the reverse rotation. The reference position is located at the midpoint between the two stop blocks. Precise centering is achieved by controlling the energizing time of the DC geared motor.

[0063] Meanwhile, the central control module 10 uses a microcontroller as the core controller, which controls the start and stop of the high voltage generating module 9 through relays or solid-state switches, and is linked with the operating status signals of the drive component 5 (such as the start and stop signals of the DC geared motor, the feedback of the limit switch or the return sensor signal) to automatically trigger the cleaning action, so as to achieve fully automatic and safe switching without intervention.

[0064] Furthermore, the control logic of the central control module 10 is as follows: before starting the drive component 5 to perform the cleaning action, the power output of the high-voltage generating module 9 is first cut off, so that the metal rod is in a de-energized state; after a delay of 0.5s-1s, the DC geared motor is controlled to rotate forward, driving the movable metal component 3 to rotate to the limit position, completing the first side scraping cleaning; after the DC geared motor rotates forward to the position, it immediately reverses, driving the movable metal component 3 to rotate in the opposite direction to the limit position, completing the second side scraping cleaning; after the DC geared motor reverses to the position, it is controlled to drive the movable metal component 3 back to the reference position; after returning to the position, after a delay of 0.5s-1s, the power supply of the high-voltage generating module 9 is reconnected, restoring the electric shock insecticidal function.

[0065] This control logic effectively avoids the following risks: the risk of high voltage breakdown or arcing caused by dynamic changes in the spacing during the relative movement of the metal rods; the risk of short circuits or equipment damage caused by energizing the movable and fixed metal rods in contact; and the risk of electrical interference to the DC geared motor caused by the cleaning mechanism operating in an energized state.

[0066] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0067] 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.

Claims

1. A self-cleaning structure for an electric shock insecticidal device, characterized in that, It includes an electric shock assembly, a drive assembly (5), a high voltage generating module (9), and a central control module (10). The electric shock assembly includes a fixed metal assembly (2) and a movable metal assembly (3), and both the fixed metal assembly (2) and the movable metal assembly (3) include multiple metal rods. The fixed metal assembly (2) is fixedly installed inside the support housing (1) of the equipment, and the movable metal assembly (3) is connected to the drive assembly (5) in a transmission manner. The electric shock assembly is connected to the drive assembly (5) by transmission, and the central control module (10) is electrically connected to the drive assembly (5) and the high voltage generating module (9) respectively, in order to coordinate the working sequence of the two and ensure operational safety; The high voltage generating module (9) is used to apply a high voltage to the surface of the metal rod of the electric shock component to achieve electric shock and kill insects when they come into contact with it; the multiple metal rods of the fixed metal component (2) and the movable metal component (3) have the same non-circular cross-section and are arranged in a ring array at intervals along the same circumference; the metal rods of the fixed metal component (2) and the metal rods of the movable metal component (3) are arranged alternately, and the adjacent two metal rods are close to each other in the radial direction; The cross-section of the metal rod has a centrally symmetrical convex profile, and its main axis of symmetry is inclined at 45° relative to the direction of movement of the movable metal component (3). Assuming the metal rod extends along the Z-axis and the direction of movement of the movable metal component (3) is the X-axis, the maximum width of the metal rod's cross-section in the XY plane is along a straight line. That is, at +45° to the X-axis, the minimum width direction is along a straight line. That is, it is at -45° to the X-axis; the drive component (5) includes a DC geared motor, a transmission connector and a limit reset structure. The DC geared motor is fixedly installed on the support housing (1). Its output shaft is coaxially connected to the drive ring (4) of the movable metal component (3) through the transmission connector. The DC geared motor is controlled to rotate forward and reverse, driving the movable metal component (3) to reciprocate around the central axis of the ring array within a preset angle range.

2. The self-cleaning structure of the electric shock insecticidal device according to claim 1, characterized in that: The cross-section of the metal rod is a rotating elliptical structure, specifically an ellipse rotated 45° counterclockwise around its center, in the local coordinate system. The equation of the ellipse is: ； Where the major axis along Direction: Rotate the ellipse counterclockwise by 45° around the origin to obtain the coordinates in the global coordinate system. The outline in the figure, where x is the translation direction, has the following implicit equation: ； Where a ranges from 3mm to 8mm, and b ranges from 1mm to 3mm.

3. The self-cleaning structure of the electric shock insecticidal device according to claim 1, characterized in that: The cross-section of the metal rod is a rounded rhombus or spindle shape, with its four vertices located at... and The coordinate position after a 45° rotation, i.e., the actual vertex location. The four sharp corners are rounded with a radius of r, and this shape is widest in the ±45° direction and narrowest in the 0° and 90° directions.

4. The self-cleaning structure of the electric shock insecticidal device according to claim 1, characterized in that: The cross-section of the metal rod is a rotated hyperellipse structure, specifically a hyperellipse rotated 45° counterclockwise around its center. Its equation in the global coordinate system (x, y) is: ； Where A ranges from 3mm to 8mm, B ranges from 1mm to 3mm, and n ranges from 1.2 to 3.

0.

5. The self-cleaning structure of an electric shock insecticide device according to claim 1, characterized in that: The transmission connection is a coupling (6), and the speed range of the DC geared motor is 5r / min-30r / min, with an output torque of not less than 0.5N・m.

6. The self-cleaning structure of the electric shock insecticidal device according to claim 1, characterized in that: The limiting and resetting structure includes a reference stop block (7) and a positioning lug (8). The reference stop block (7) is fixed on the support housing (1), and the positioning lug (8) is disposed on the drive ring (4) or the output shaft of the DC geared motor.

7. The self-cleaning structure of an electric shock insecticide device according to claim 1, characterized in that: The limiting and resetting structure consists of a first stop block (11) and a second stop block (12) fixedly connected to the support housing (1). The first stop block (11) limits the maximum position of the movable metal component (3) in the forward rotation, and the second stop block (12) limits the maximum position of the reverse rotation. The reference position is located at the midpoint between the two stop blocks.

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