A tube-type trap for the spruce bark beetle.
By designing a complex escape-proof channel and a self-sealing mechanism, the spruce bark beetle tube-type trap solves the problem of high escape rate of bark beetles in existing technologies, achieving efficient bark beetle collection and control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAIBEI TIBETAN AUTONOMOUS PREFECTURE GRASSLAND WORK STATION (HAIBEI TIBETAN AUTONOMOUS PREFECTURE GRASSLAND SUPERVISION STATION)
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-09
AI Technical Summary
The existing spruce bark beetle trap has a high escape rate of bark beetles during the disassembly of the insect collection container, resulting in low control efficiency and the potential spread of pests.
A trap consisting of an insect inlet tube, an insect drop tube, and a collection tube was designed. It adopts an inclined insect inlet, a double-layer funnel structure, and a self-closing mechanism. Combined with a repellent coating and reflective strips, it forms a complex escape-proof channel and an automatic closing mechanism.
It significantly reduced the escape rate of bark beetles, ensuring that no secondary escape occurred during dismantling, thus improving control efficiency and safety.
Smart Images

Figure CN224330181U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pest control technology, specifically to a tube-type trap for the spruce bark beetle. Background Technology
[0002] The bark beetle (Bark Borer spp.) is a major trunk-boring pest of spruce trees. Adults bore into the bark, creating a network of tunnels that obstruct the transport of water and nutrients, potentially causing widespread forest death. Currently, control relies primarily on pheromone trapping techniques. However, existing traps often employ a single funnel design, resulting in a high escape rate for the beetles. Furthermore, during the disassembly and maintenance of the collection container, temporary exposure of the inlet structure can lead to secondary escapes of captured beetles, reducing control efficiency and potentially causing further spread of the pest. Therefore, a tubular trap for the bark beetle is urgently needed. Utility Model Content
[0003] The purpose of this invention is to address the deficiencies and shortcomings of existing technologies by providing a reasonably designed tube-type trap for the spruce bark beetle, thus solving the aforementioned problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes an insect inlet tube, a mounting frame, and a lure core. Two mounting frames are fixedly installed inside the insect inlet tube, and the lure core is fixedly installed on the two mounting frames. Several insect inlets are opened on the side wall of the insect inlet tube.
[0005] It also includes:
[0006] Support rods, of which there are several, are distributed at the upper end of the insect inlet tube with equal rounded corners. Rain covers are fixedly installed at the upper ends of the support rods, and connecting hooks are fixedly installed on the upper part of the rain covers.
[0007] The insect drop tube is threaded to the lower end of the insect inlet tube. A mesh plate is fixedly installed at the upper opening of the insect inlet tube. A funnel No. 1 is fixedly installed on the inner wall of the insect inlet tube at the inner opening of the insect inlet. Funnel No. 2 is fixedly installed on both the upper and lower sides inside the insect drop tube.
[0008] A collection tube is threadedly connected to the lower end of the insect-falling tube, and the collection tube is equipped with a self-closing mechanism that cooperates with the insect-falling tube.
[0009] Furthermore, the self-closing mechanism includes:
[0010] A conical baffle is suspended inside the collection tube. Several vertical rods with rounded corners are distributed on the upper part of the conical baffle. The upper end of the vertical rods moves through the top wall of the collection tube and is fixedly provided with a limiting block. The limiting block is movable and abuts against the lower end of the insect-falling tube.
[0011] Several springs are movably sleeved on several vertical rods, and the upper and lower ends of the springs are fixedly connected to the limiting block and the collecting tube, respectively.
[0012] Furthermore, adjacent limiting blocks are connected by an arc-shaped rod, which is set to move and abut against the lower end of the insect-dropping tube.
[0013] Furthermore, a light-shielding sleeve is fixedly fitted on the outside of the collection tube, and a reflective strip is fixedly installed on the light-shielding sleeve.
[0014] Furthermore, the insect inlet is an inclined structure with the outer side facing downwards, and a guide plate is fixedly installed on the outer wall of the insect inlet tube above the insect inlet.
[0015] Furthermore, the No. 1 funnel has several vent holes, and the outer wall of the No. 1 funnel is provided with a repellent coating.
[0016] Compared with the prior art, the beneficial effects of this utility model are: the spruce bark beetle tube-type trap described in this utility model can not only reduce the escape rate of the beetles through the constructed escape-proof channel, but also achieve the self-sealing of the beetle collection container during the disassembly process, thus avoiding the secondary escape of the collected beetles. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is a cross-sectional view of the insect inlet tube, rain cover, and insect drop tube in this utility model.
[0019] Figure 3 yes Figure 2 Enlarged view of part A in the image.
[0020] Figure 4 yes Figure 2 Enlarged view of part B in the image.
[0021] Figure 5 This is an exploded view of the vertical rod, the limiting block, and the arc rod in this utility model.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Insect inlet tube, 1-1. Mounting frame, 2. Lure core, 3. Support rod, 4. Rain cover, 5. Connecting hook, 6. Insect drop tube, 7. Net plate, 8. Funnel No. 1, 9. Funnel No. 2, 10. Collection tube, 11. Self-closing mechanism, 12. Conical baffle, 12-1. Vertical rod, 12-2. Limiting block, 12-3. Spring, 12-4. Light-blocking sleeve, 13. Reflective strip, 14. Guide plate, 15. Ventilation hole, 16. Arc rod, 17. Detailed Implementation
[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] like Figures 1-5 As shown, this specific embodiment adopts the following technical solution: It includes an insect inlet tube 1, a mounting frame 2, and a lure 3. Two mounting frames 2 are fixedly installed inside the insect inlet tube 1, and the lure 3 is fixedly installed on the two mounting frames 2. Several insect inlets 1-1 are opened on the side wall of the insect inlet tube 1. The insect inlets 1-1 are inclined structures with the outside facing downward, which can provide a guiding effect for rainwater splashed into the insect inlets 1-1 to be discharged outward. A guide plate 15 is fixedly installed on the outer wall of the insect inlet tube 1 above the insect inlets 1-1. The guide plate 15 can guide rainwater and other substances sliding down the outer wall of the insect inlet tube 1, and prevent rainwater from sliding down the insect inlet tube 1 into the insect inlets 1-1.
[0026] It also includes:
[0027] Support rod 4, there are several support rods 4, which are distributed at the upper end of the insect inlet tube 1 with equal rounded corners. Rain cover 5 is fixedly installed at the upper end of the several support rods 4, and connecting hook 6 is fixedly installed on the upper part of the rain cover 5.
[0028] The insect-dropping tube 7 is threadedly connected to the lower end of the insect-inlet tube 1. A mesh plate 8 is fixedly installed at the upper opening of the insect-inlet tube 1. A funnel 9 is fixedly installed on the inner side opening of the insect-inlet 1-1 on the inner wall of the insect-inlet tube 1. The funnel 9 has several ventilation holes 16. A repellent coating is provided on the outer wall of the funnel 9. The ventilation holes 16 can reduce the obstruction of the funnel 9 to the pheromone released by the lure 3. The repellent coating contains fipronil. The silane coupling agent and repellent coating can cause the bark beetles in contact with the outer wall of the first funnel 9 to have a repulsion reaction, preventing the bark beetles that enter the insect inlet tube 1 from crawling on the first funnel 9 and finding the exit. The second funnel 10 is fixedly installed on both the upper and lower sides inside the insect drop tube 7. The second funnel 10 located vertically inside the insect drop tube 7, together with the first funnel 9 on the side, can form a more complex escape prevention channel, which can greatly reduce the escape rate of bark beetles compared with the single funnel structure.
[0029] The collection tube 11 is threadedly connected to the lower end of the insect-falling tube 7. The collection tube 11 is equipped with a self-closing mechanism 12 that cooperates with the insect-falling tube 7. A light-shielding sleeve 13 is fixedly fitted on the outside of the collection tube 11. A reflective strip 14 is fixedly installed on the light-shielding sleeve 13. The light-shielding sleeve 13 can cover the collection tube 11, forcibly triggering the negative phototaxis of the beetles, so that they lose their initiative to escape upwards after entering. The reflective properties of the reflective strip 14 can play a guiding role at night, making it easier for the trap to be found by the staff.
[0030] The self-closing mechanism 12 includes:
[0031] A conical baffle 12-1 is suspended inside the collection tube 11. Several vertical rods 12-2 are distributed at the upper part of the conical baffle 12-1 with equal rounded corners. The upper end of the vertical rod 12-2 moves through the top wall of the collection tube 11 and is fixedly provided with a limiting block 12-3. The limiting block 12-3 is moved and abuts against the lower end of the insect-falling tube 7.
[0032] Several springs 12-4 are movably sleeved on several vertical rods 12-2. The upper and lower ends of the springs 12-4 are fixedly connected to the limiting blocks 12-3 and the collecting tube 11, respectively. After the collecting tube 11 is removed from the insect-falling tube 7, the conical baffle 12-1 in the self-closing mechanism 12 will move upward to close the inner side of the opening of the collecting tube 11, preventing the insects collected in the collecting tube 11 from escaping. Adjacent limiting blocks 12-3 are connected by arc-shaped rods 17. The arc-shaped rods 17 are movably abutted against the lower end of the insect-falling tube 7. The arc-shaped rods 17 can make several limiting blocks 12-3 and several vertical rods 12-2 form a whole, thereby improving the stability of the movement of the conical baffle 12-1.
[0033] When using this invention, the trap is hung on a spruce tree using the connecting hook 6. The pheromone released by the lure 3 diffuses outward through the insect inlet 1-1, attracting bark beetles. The bark beetles then enter the insect inlet tube 1 through the insect inlet 1-1 and the first funnel 9. Due to gravity and negative phototaxis, the bark beetles descend through the insect drop tube 7 and the second funnel 10 into the collection tube 11, thus collecting the bark beetles. When it is necessary to process the trapped bark beetles, the collection tube 11 can be rotated to disengage it from the threaded connection with the insect drop tube 7, and the limiting block 12-3 also disengages from the insect drop tube 7. At this time, the spring 12-4 extends, pushing the limiting block 12-3 upwards. The limiting block 12-3 is then connected to the vertical rod... 12-2 moves the conical baffle 12-1 upward, causing it to abut against the inner top wall of the collection tube 11, thus sealing the opening of the collection tube 11 and preventing any wood-boring insects from escaping. Then, the collection tube 11 can be connected to the collection equipment carried by the staff. Next, the limiting block 12-3 is pushed downward, compressing the spring 12-4. The limiting block 12-3, through the vertical rod 12-2, causes the conical baffle 12-1 to detach from the inner top wall of the collection tube 11, allowing the collection tube 11 to connect with the collection equipment carried by the staff. Finally, the wood-boring insects in the collection tube 11 can be poured into the collection equipment carried by the staff, completing the cleaning of the wood-boring insects in the collection tube 11.
[0034] Compared with the prior art, the beneficial effects of this utility model are:
[0035] The composite channel formed by funnel 9 and double funnel 10 can significantly reduce the escape rate of bark beetles. In addition, the repellent coating can further inhibit the bark beetles from crawling backward on the outer wall of funnel 9, forming a dual escape prevention mechanism of physical barrier and chemical repellency.
[0036] The self-sealing mechanism 12 inside the collection tube 11 automatically seals the tube opening during disassembly through the linkage of the conical baffle 12-1, the spring 12-4 and the vertical rod 12-2, thus completely solving the problem of insect escape during the maintenance of traditional traps.
[0037] The collection tube 11 can be covered by the light-blocking sleeve 13, which forcibly triggers the negative phototaxis of the bark beetles, causing them to lose their initiative to escape upwards after entering. The reflective properties of the reflective strip 14 can play a guiding role at night, making it easier for staff to find the trap.
[0038] The use of the arc-shaped rod 17 allows several limiting blocks 12-3 and several vertical rods 12-2 to form a whole, thereby improving the stability of the movement of the conical baffle 12-1.
[0039] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A tube-type trap for the spruce bark beetle, comprising an inlet tube (1), a mounting frame (2) and a lure (3), wherein two mounting frames (2) are fixedly installed inside the inlet tube (1), and the lure (3) is fixedly installed on the two mounting frames (2), and several inlet ports (1-1) are opened on the side wall of the inlet tube (1). Its features are, It also includes: Support rod (4), there are several support rods (4), which are distributed at the upper end of the insect inlet tube (1) with equal rounded corners. Rain cover (5) is fixedly installed on the upper end of several support rods (4), and a connecting hook (6) is fixedly installed on the upper part of the rain cover (5). The insect drop tube (7) is connected to the lower end of the insect inlet tube (1) by a thread. A mesh plate (8) is fixedly installed at the upper opening of the insect inlet tube (1). A funnel (9) is fixedly installed on the inner side of the insect inlet (1-1) on the inner wall of the insect inlet tube (1). A funnel (10) is fixedly installed on both the upper and lower sides inside the insect drop tube (7). The collection tube (11) is connected to the lower end of the insect-falling tube (7) by a thread. The collection tube (11) is provided with a self-closing mechanism (12) that cooperates with the insect-falling tube (7).
2. The spruce bark beetle tube-type trap according to claim 1, characterized in that: The self-closing mechanism (12) includes: A conical baffle (12-1) is suspended inside the collection tube (11). Several vertical rods (12-2) are distributed at the upper part of the conical baffle (12-1) with equal rounded corners. The upper end of the vertical rod (12-2) moves through the top wall of the collection tube (11) and is fixedly provided with a limiting block (12-3). The limiting block (12-3) is moved and abuts against the lower end of the insect-falling tube (7). Spring (12-4), there are several springs (12-4), which are movably sleeved on several vertical rods (12-2). The upper and lower ends of the springs (12-4) are fixedly connected to the limiting block (12-3) and the collecting tube (11) respectively.
3. The spruce bark beetle tube-type trap according to claim 2, characterized in that: Adjacent limiting blocks (12-3) are connected by an arc-shaped rod (17), which is set to move and abut against the lower end of the insect drop tube (7).
4. The spruce bark beetle tube-type trap according to claim 1, characterized in that: The outside of the collection tube (11) is fixedly fitted with a light-shielding sleeve (13), and a reflective strip (14) is fixedly installed on the light-shielding sleeve (13).
5. A tube-type trap for the spruce bark beetle according to claim 1, characterized in that: The insect inlet (1-1) is an inclined structure with the outside facing downwards, and a guide plate (15) is fixedly installed on the outer wall of the insect inlet tube (1) above the insect inlet (1-1).
6. The spruce bark beetle tube-type trap according to claim 1, characterized in that: The No. 1 funnel (9) has several vent holes (16) and a repellent coating is provided on the outer wall of the No. 1 funnel (9).