Grain depot pest trap sealing structure

By setting grooves and seals at the bottom of the lower shell of the pest trap, combined with the design of a ring-shaped light plate and pressure plate, the problem of air leakage in the sealing structure is solved, and the stable operation of the components and the trapping efficiency are improved.

CN224139973UActive Publication Date: 2026-04-21SINOGRAIN CHENGDU STORAGE RESEARCH INSTITUTE CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SINOGRAIN CHENGDU STORAGE RESEARCH INSTITUTE CO LTD
Filing Date
2025-05-26
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing sealed structure design of pest traps has the problem of dust and corrosive gases entering the control components, causing damage to the components and affecting the normal operation of the equipment.

Method used

A downward-protruding groove is provided at the bottom of the lower shell, and a first sealing element and a light source are placed in the groove. The design of the sealing element through hole and the light-transmitting hole achieves the sealing between the light source and the groove, while ensuring the transparency of the captured light. Combined with the fixing design of the ring light plate and the pressure plate, the sealing and stability are enhanced.

Benefits of technology

It effectively prevents dust and corrosive gases from entering the control components, ensuring stable operation of the components, improving trapping efficiency and equipment lifespan, and reducing operation and maintenance difficulties.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224139973U_ABST
    Figure CN224139973U_ABST
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Abstract

The utility model relates to the field of grain storage equipment, in particular to a grain depot pest trap sealing structure which can effectively improve the sealing effect of the bottom area of a lower shell and further prevent dust or corrosive gas from entering the lower shell, and a control assembly is arranged at the top of a light guide column and comprises the lower shell and a light emitting source arranged in the lower shell. Comprising a first sealing piece, the first sealing piece is arranged at the bottom of a luminous source, the first sealing piece comprises at least one sealing piece through hole, and trapping light rays emitted by the luminous source can pass through the sealing piece through hole; a groove protruding downwards is formed in the bottom of the lower shell, the first sealing piece and the luminous source are arranged in the groove, the first sealing piece seals a gap between the luminous source and the groove, the light through hole is formed in the bottom face of the groove, a through hole of the sealing piece corresponds to the light through hole, and the light guide column is fixedly arranged at the bottom of the groove. Trapping light irradiates the light guide column through the through hole of the sealing piece and the light through hole. The pest trap is particularly suitable for pest traps.
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Description

Technical Field

[0001] This utility model relates to the field of grain storage equipment, and in particular to a sealing structure for a grain depot pest trap. Background Technology

[0002] In the process of storing grain in grain depots, in addition to moisture prevention, fire prevention, and lightning protection, it is also necessary to prevent pests. As for methods of preventing pests, physically eliminating pests by setting up pest traps in the grain depot is a common approach.

[0003] The existing insect trap structure mainly includes a trap shell and a light guide column installed inside the trap shell. A control component is located at the top of the trap shell to control the on / off state of the ultraviolet light, and the lower shell of the control component is fixedly connected to the light guide column. In actual use, inside a relatively enclosed grain storage facility, the control component turns on the light source to emit attracting light. The attracting light, represented by ultraviolet light, shines through a light-transmitting hole on the lower shell of the control component onto the light guide column and is reflected, attracting insects. The insects then fly into the trap shell through the insect inlet, achieving concentrated killing of the pests. However, in actual use, due to structural defects in the sealing design of the connection between the light guide column and the lower shell, dust or corrosive gases from inside the grain storage facility often enter the control component through the light-transmitting hole between the light guide column and the lower shell, as well as the surrounding gaps, affecting the operation of the components. In severe cases, it can even damage the components inside the control component, causing the insect trap to malfunction. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a sealing structure for a grain depot pest trap that effectively improves the sealing effect of the bottom area of ​​the lower shell, thereby preventing dust or corrosive gases from entering the interior of the lower shell.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a sealed structure for a grain depot pest trap, including a light guide column, a control component at the top of the light guide column, the control component including a lower shell and a light source disposed in the lower shell, including a first sealing member, the first sealing member being disposed at the bottom of the light source, the first sealing member including at least one sealing member through hole, the sealing member through hole being used to allow the trapping light emitted by the light source to pass through; a downward protruding groove is provided at the bottom of the lower shell, the first sealing member and the light source are disposed in the groove, the first sealing member sealing the gap between the light source and the groove, a light-transmitting hole is disposed at the bottom surface of the groove, the sealing member through hole and the light-transmitting hole are correspondingly disposed, the light guide column is fixedly disposed at the bottom of the groove, and the trapping light shines onto the light guide column through the sealing member through hole and the light-transmitting hole.

[0006] Furthermore, the light source includes a ring-shaped light panel, with the LED beads of the ring-shaped light panel evenly arranged around the axis of the ring-shaped light panel, and the first sealing element is a sealing ring, with the through holes of the sealing element evenly arranged around the axis of the sealing ring.

[0007] Furthermore, it includes a pressure plate, which is disposed on the top of the light source and is fixedly connected to the lower shell, thereby fixing the light source in the groove.

[0008] Furthermore, a second seal is included, which is disposed between the pressure plate and the top of the light source.

[0009] Furthermore, it includes a light guide post slot located at the bottom of the groove, with the top of the light guide post snapped into the light guide post slot.

[0010] Furthermore, including the CO2 module, the lower shell sidewall is provided with an inwardly recessed lower shell slot, and the CO2 module is disposed in the lower shell slot.

[0011] Furthermore, it includes a PoE control board module, which is located inside the lower housing. The RS485 interface and PoE interface of the PoE control board module are respectively connected to the outside through the reserved through holes on the lower housing. The reserved through holes are provided with O-rings and fastening nuts.

[0012] Furthermore, the control component includes a main housing, the bottom of which is fixedly connected to the lower housing. The main housing includes a main housing groove, and a battery pack assembly is disposed within the main housing groove.

[0013] Furthermore, the control component includes an upper shell, which is fixedly connected to the top of the main shell. A main control panel is disposed inside the upper shell, and the main control panel is electrically connected to the battery pack assembly in the groove of the main shell.

[0014] Furthermore, a handle is provided on the top of the upper shell, and a handle sealing ring is provided at the connection between the handle and the upper shell.

[0015] The beneficial effects of this utility model are as follows: 1. By setting a downward-protruding groove at the bottom of the lower shell, after the first sealing element and the light source are placed in the groove, the gaps and areas that need to be sealed are greatly reduced due to the limited space in the groove. On this basis, by setting the first sealing element to seal the gap between the light source and the groove, an ideal sealing effect can be obtained. At the same time, the first sealing element is provided with a sealing through hole, ensuring that the trapping light can still shine onto the light guide column through the sealing through hole and the light hole, without the trapping light being obstructed due to sealing, thus achieving a balance between "effective sealing" and "ensuring the passage of trapping light". 2. The setting of the ring light plate allows the trapping light emitted by the lamp beads to be more uniform. After being guided by the light guide column, the trapping light can be well dispersed into the grain depot, thereby obtaining a better trapping effect and improving trapping efficiency. 3. The pressure plate allows the light source to be stably and reliably fixed in the groove, which not only further improves the sealing performance but also improves the stability of the sealing structure. The added second seal prevents the harder pressure plate from crushing the relatively brittle ring light plate, thus protecting it. The second seal itself, when compressed, also improves sealing. Fourth, adding a battery pack assembly inside the main housing significantly extends the lifespan of the insect trap. Once the battery pack is depleted, it can be replaced with a fully charged one, reducing the operational and maintenance difficulties. Fifth, in actual use, the excellent sealing performance ensures the long-term stable operation of the components within the control assembly, guaranteeing the stability of insect identification and trapping. This provides a solid structural foundation for the timely detection and control of grain storage pests, reducing losses due to pests. Furthermore, by utilizing the phototaxis of specific insects to specific wavelengths, the ring light plate can selectively emit light at those specific wavelengths, supplemented by odor trapping, thereby enhancing precise targeted trapping and comprehensive detection and control of these specific pests. This invention is particularly suitable for insect traps. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one embodiment of the present invention after the components have been disassembled.

[0017] Figure 2 This is a schematic diagram showing the installation position relationship of the light guide column, lower shell, and ring light panel of this utility model.

[0018] Figure 3 yes Figure 2 A magnified view along direction A in the image.

[0019] Figure 4 This is a schematic diagram of the first sealing element of this utility model.

[0020] Figure 5 This is a schematic diagram of the upper shell and the surrounding structure of this utility model.

[0021] Figure 6 This is a schematic diagram showing the installation position relationship between the main housing and the battery pack assembly of this utility model.

[0022] The components are marked as follows: Main shell 1, battery pack assembly 11, main shell groove 12, main shell upper positioning post 13, main shell lower positioning post 14, upper shell 2, handle 21, main control panel 22, power connector 24, plastic part 25, handle sealing ring 26, lower shell 3, CO2 module 31, CO2 sensor 311, silicone sleeve 312, cover plate 313, PoE control board module 32, PoE interface 321, RS485 interface 322, ring light board 33, first seal 331, second seal 332, seal through hole 333, pressure plate 34, lower shell slot 35, groove 36, light hole 361, light guide post slot 362, light guide post 4, trap shell 5, trap shell tip bottom 51, insect inlet 52, trap shell top cover 53. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 6 The diagram illustrates one embodiment of a sealing structure for a grain depot pest trap. The external structure of the sealing structure, from top to bottom, is primarily composed of an upper shell 2, a main shell 1, a lower shell 3, and a trapping shell 5. The trapping shell 5 is cylindrical, with a pointed bottom 51 at its base. In use, the pointed bottom 51 is inserted into the surface of the stored grain, thus fixing the trapping shell 5 to the grain pile. The upper shell 2, main shell 1, and lower shell 3 are positioned above the grain pile. The sidewalls of the trapping shell 5 have light-transmitting holes. While ensuring that the trapped pests do not escape from the trapping shell 5, the light from the light guide column 4 passes through these holes, thereby expanding the range of pest trapping. The light guide column 4 is positioned inside the trapping shell 5 along its axial direction. A top cover 53 can be provided between the trapping shell 5 and the lower shell 3. The insect inlet 52 of the trapping shell 5 is located on the top cover 53. The bottom of the top cover 53 and the top of the trapping shell 5 are engaged by a rotating snap-fit. The top of the top cover 53 is positioned in a matching groove on the bottom of the lower shell 3 by an upwardly protruding positioning post. The positioning post and the matching groove on the bottom of the lower shell 3 can be fastened together by screws. The insect inlet 52 communicates with the inside of the trapping shell 5, allowing the trapped pests to enter the trapping shell 5 through the insect inlet 52. The upper shell 2, the main shell 1, and the lower shell 3 together constitute the outer shell of the control component.

[0025] Figures 2 to 4The diagram shows the fit between the lower shell 3 and the light guide post 4, as well as the corresponding sealing structure inside the lower shell 3. At the bottom of the lower shell 3, a downward-protruding groove 36 is provided. The space inside the groove 36 is used to house the annular lamp plate 33, the first sealing element 331, and the second sealing element 332. The groove 36 has a circular cross-sectional shape. Several light-transmitting holes 361 are evenly arranged around the bottom surface of the groove 36 along its axis. A light guide post slot 362 is provided near the center of the bottom surface of the groove 36. The light guide post slot 362 protrudes downward from the bottom surface of the groove 36. The top of the light guide post 4 is located inside the slot 362, thus fixing the light guide post 4 to the bottom surface of the groove 36. The light-transmitting holes 361 are arranged around the circumference of the light guide post 4, allowing the captured light to illuminate the light guide post 4 and to propagate downwards and diverge outwards along the light guide post 4.

[0026] The internal space of the downward-protruding groove 36 at the bottom of the lower shell 3 is a cylindrical cavity. The second seal 332, the annular lamp plate 33, and the first seal 331 are stacked sequentially from top to bottom. The first seal 331 and the second seal 332 can be made of sealing silicone. The first seal 331 and the second seal 332 are annular, and their specific size is adapted to the annular lamp plate 33. The lamp beads of the annular lamp plate 33 are evenly arranged around the axis of the annular lamp plate 33, and the sealing through holes 333 of the first seal 331 are evenly arranged around the axis of the sealing ring. The downward-protruding lamp beads of the annular lamp plate 33 are set in the sealing through holes 333, and the sealing through holes 333 are evenly arranged around the axis of the first seal 331. The sealing through holes 333 and the light-transmitting holes 361 are arranged one-to-one. The depth of the sealing through-hole 333 is greater than the height of the downward-protruding LED bead in the annular light plate 33. Therefore, in addition to preventing the LED bead from being crushed, the sealing through-hole 333 also ensures that the trapping optical fiber emitted by the LED bead can pass through the sealing through-hole 333 to illuminate the light-passing hole 361 and then the light guide post 4. The sealing between the annular light plate 33 and the inner wall of the groove 36 by the first sealing element 331 achieves good sealing performance. A pressure plate 34 is provided on the second sealing element 332. The pressure plate 34 is fixed to the bottom of the lower shell 3 by screws, thereby stably setting the second sealing element 332, the annular light plate 33, and the first sealing element 331 in the inner cavity of the groove 36. At the same time, it can further compress the first sealing element 331 and the second sealing element 332, improving the sealing effect.

[0027] The lower shell 3 has an inwardly recessed lower shell slot 35 on its side wall, within which a CO2 module 31 is housed. The CO2 module 31 sequentially includes a CO2 sensor 311, a silicone sleeve 312, and a cover plate 313. The CO2 sensor 311 is electrically connected to a connector on the lower shell slot 35. The silicone sleeve 312 seals the lower shell slot 35 and prevents the CO2 sensor 311 from being crushed by external force. A PoE control board module 32 is housed inside the lower shell 3, positioned above a pressure plate 34. Due to the excellent sealing performance of the pressure plate 34, the PoE control board module 32 enjoys a good sealing environment. The RS485 interface 322 and the PoE interface 321 of the PoE control board module 32 pass through pre-drilled holes on the lower shell 3, communicating with the outside. O-rings and fastening nuts are installed at these pre-drilled holes to ensure the sealing effect of the lower shell 3.

[0028] like Figure 1 and Figure 6 As shown, the top of the lower shell 3 is connected to the bottom of the main shell 1. The bottom of the main shell 1 has a downwardly protruding lower positioning post 14, which aligns with the corresponding hole on the top of the lower shell 3 for better connection stability. The main shell 1 has a rectangular parallelepiped structure, and a recess 12 is provided inside the main shell 1. The opening of the recess 12 faces the side of the main shell 1, and the battery pack assembly 11 is positioned into the recess 12 from the side. The recess 12 is electrically connected to the power connector 24 of the main control panel 22 inside the upper shell 2 through a channel on the top of the main shell 1.

[0029] like Figure 1 , Figure 5 and Figure 6 As shown, the top of the main housing 1 is provided with an upwardly protruding positioning post 13. The positioning post 13 aligns with the corresponding hole at the bottom of the upper housing 2, achieving better connection stability. The main control panel 22 inside the upper housing 2 includes a power connector 24 and a plastic part 25. The plastic part 25 is located at the bottom of the power connector 24 and is used to make the connection more stable and provide a certain degree of insulation when the power connector 24 is electrically connected to the battery pack assembly 11. The top of the upper housing 2 is provided with a handle 21, and the connection between the handle 21 and the top of the upper housing 2 is provided with a handle sealing ring 26 to enhance the sealing effect.

Claims

1. A sealed structure for a grain depot pest trap, comprising a light guide column (4), a control component being provided at the top of the light guide column (4), the control component comprising a lower shell (3) and a light source disposed within the lower shell (3), characterized in that: It includes a first seal (331), which is disposed at the bottom of the light source. The first seal (331) includes at least one sealing through hole (333), which is used to allow the trapping light emitted by the light source to pass through. The bottom of the lower shell (3) is provided with a downward protruding groove (36). The first sealing element (331) and the light source are disposed in the groove (36). The first sealing element (331) seals the gap between the light source and the groove (36). The light-passing hole (361) is disposed on the bottom surface of the groove (36). The sealing element through hole (333) is disposed corresponding to the light-passing hole (361). The light guide column (4) is fixedly disposed at the bottom of the groove (36). The trapping light is irradiated onto the light guide column (4) through the sealing element through hole (333) and the light-passing hole (361).

2. The grain bin pest trap seal of claim 1, wherein: The light source includes a ring lamp plate (33), the lamp beads of the ring lamp plate (33) are evenly arranged around the axis of the ring lamp plate (33), the first sealing element (331) is a sealing ring, and the sealing element through hole (333) is evenly arranged around the axis of the sealing ring.

3. The grain bin pest trap seal of claim 2, wherein: Includes a pressure plate (34), which is disposed on the top of the light source. The pressure plate (34) is fixedly connected to the lower shell (3) and the pressure plate (34) fixes the light source in the groove (36).

4. The grain bin pest trap seal of claim 3, wherein: Includes a second seal (332), which is disposed between the pressure plate (34) and the top of the light source.

5. The grain bin pest trap seal structure of any of claims 1 to 4, wherein: Includes a light guide post slot (362) set at the bottom of the groove (36), and the top of the light guide post (4) is snapped into the light guide post slot (362).

6. The grain bin pest trap seal structure of any of claims 1 to 4, wherein: Includes a CO2 module (31), and the side wall of the lower shell (3) is provided with an inwardly recessed lower shell slot (35), in which the CO2 module (31) is disposed.

7. The grain bin pest trap seal structure of any of claims 1 to 4, wherein: The Poe control board module (32) is located inside the lower shell (3). The RS485 interface (322) and POE interface (321) of the Poe control board module (32) pass through the reserved through holes on the lower shell (3) to communicate with the outside. The reserved through holes are provided with O-ring seals and fastening nuts.

8. The grain bin pest trap seal structure of any of claims 1 to 4, wherein: The control component includes a main housing (1), the bottom of which is fixedly connected to the lower housing (3). The main housing (1) includes a main housing groove (12), and a battery pack assembly (11) is disposed in the main housing groove (12).

9. The grain bin pest trap seal of claim 8, wherein: The control component includes an upper shell (2), which is fixedly connected to the top of the main shell (1). A main control panel (22) is provided inside the upper shell (2), and the main control panel (22) is electrically connected to the battery pack assembly (11) in the groove (12) of the main shell.

10. The grain bin pest trap seal structure of claim 9, wherein: A handle (21) is provided on the top of the upper shell (2), and a handle sealing ring (26) is provided at the connection between the handle (21) and the upper shell (2).