A citrus psyllid attractant slow-release device

Abstract

The utility model discloses a citrus psylla attractant slow -release device, solve the problem that present device cannot switch sealed and release state. The device includes bottle body, the cover plate of hinged in the bottle mouth and the connecting cylinder, and the connecting cylinder is sealed through the cooperation of first sealing protrusion and bottom first limit slot when being inserted into bottle body completely, and is matched with middle part second limit slot when being half inserted, and its aeration structure and volatile hole are aligned to release attractant. The bottle mouth is equipped with volatile groove, and the cover plate connecting seat and the bottle mouth interference fit enhance the sealing property. The device switches state through the insertion depth of connecting cylinder, and is sealed and prevents leakage when transporting, and is uniformly slow -released when using, avoids the defect that traditional empty bottle transportation and release are uncontrollable, realizes "transportation seal -use release " automatic switching, promotes the operation convenience, accurately control release rate, enhances the trapping effect, is applicable to citrus psylla control.

Description

Technical Field

[0001] This utility model relates to the field of sustained-release device technology, and in particular to a sustained-release device for attractant of citrus psyllid. Background Technology

[0002] In the field of agricultural pest control, the citrus psyllid is a major pest of citrus crops. Both adults and nymphs suck sap from tender shoots and are the primary vectors for citrus Huanglongbing (HLB), causing significant damage to the citrus industry. Using attractants is a common method for controlling the citrus psyllid, and the performance of slow-release attractant devices directly affects the trapping effect.

[0003] Currently, most existing slow-release devices for citrus psyllid attractants use a bottle structure as the container, releasing the attractant through small holes in the bottle. However, this traditional design has significant drawbacks: firstly, if the bottle tipps over or is bumped during transportation, the attractant can easily leak out from the opening, leading to waste and environmental pollution. Therefore, the bottle must be empty before installation, adding to the cumbersome on-site filling process; secondly, existing devices cannot flexibly switch between sealed and release states. Once the opening is opened during use, the release continues continuously, and it cannot be dynamically adjusted according to transportation or usage scenarios. This is detrimental to agent preservation and makes it difficult to accurately control the release rate. Summary of the Invention

[0004] The technical problem to be solved by this invention is that current slow-release structures for attractant containment cannot achieve the switching between sealing and release.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a slow-release device for attracting citrus psyllids, including a bottle body, a cover plate hinged to the bottle mouth, and a connecting tube connected to the cover plate. When the connecting tube is fully inserted into the bottle body, the slow-release device is in a sealed state, and when the connecting tube is partially inserted into the bottle body, the slow-release device is in an open state.

[0006] Preferably, the movable end of the connecting cylinder is fixedly provided with a first sealing protrusion, and the bottom and middle parts of the bottle body are respectively provided with a first limiting groove and a second limiting groove. The inner sides of the first limiting groove and the second limiting groove are provided with an annular groove that matches the first sealing protrusion, and the second limiting groove is provided with a ventilation structure.

[0007] Preferably, the ventilation structure is a vertically formed connecting groove inside the second limiting groove, and the depth of the connecting groove is greater than the depth of the annular groove.

[0008] Preferably, the connecting grooves are distributed at equal angles around the axis of the second limiting groove.

[0009] Preferably, the ventilation structure is an evaporation hole disposed on the pipe body, and the evaporation hole is located between the first limiting groove and the second limiting groove.

[0010] Preferably, a first limiting groove is provided in the middle of the bottle body, and a first sealing protrusion and a second sealing protrusion are respectively provided at the movable end and the middle part of the connecting cylinder. An evaporation hole is provided between the first sealing protrusion and the second sealing protrusion, and an annular groove that can be adapted to the first sealing protrusion or the second sealing protrusion is provided inside the first limiting groove.

[0011] Preferably, the evaporation holes are arranged at equal angles around the axis of the connecting cylinder.

[0012] Preferably, the bottle body has evaporation grooves evenly spaced at the bottle mouth, and a connecting seat is fixedly connected to the cover plate. When the bottle body is in a sealed state, the connecting seat and the bottle mouth are interference-fitted.

[0013] This invention provides a slow-release device for attracting citrus psyllids, which has the following beneficial effects.

[0014] 1. When the connecting tube is fully inserted into the bottle and engages with the first limiting groove, the first sealing protrusion embeds into the annular groove to form a sealed space. Even if the bottle is tilted or bumped during transportation, the attractant will not leak from the opening, solving the problem of traditional devices requiring empty bottle transportation. This allows for direct transportation of pre-filled reagents, reducing the cumbersome steps of on-site filling. When the connecting tube is partially inserted into the bottle and engages with the second limiting groove, the venting structure (such as a connecting groove) aligns with the evaporation hole. The attractant is slowly released through the evaporation hole and the venting structure, eliminating the need for manual opening or adjustment. This achieves automatic switching between "transport sealing" and "use release," improving operational convenience.

[0015] 2. The connecting grooves are distributed at equal angles around the axis of the second limiting groove, and the volatilization holes are set at equal angles around the axis of the connecting cylinder. When the two are aligned, a uniform volatilization channel is formed, which can control the release rate of the attractant and avoid the problem of uneven release caused by the fixed aperture of traditional small hole release. This ensures that the attractant volatilizes continuously and stably, and enhances the trapping effect on citrus psyllids. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model.

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

[0019] Figure 3 This is a schematic diagram of the structure during installation of the first embodiment of this utility model.

[0020] Figure 4 This is a schematic diagram of the internal structure of the second embodiment of the present invention.

[0021] Figure 5 This is a structural schematic diagram of the third embodiment of the present utility model.

[0022] Figure 6 This is a schematic diagram of the internal structure of the third embodiment of the present invention.

[0023] In the diagram: 1. Bottle body; 2. Cover plate; 3. Connecting cylinder; 4. Evaporation tank; 5. Connecting seat; 6. First sealing protrusion; 7. First limiting groove; 8. Second limiting groove; 9. Connecting groove; 10. Second sealing protrusion; 11. Evaporation hole. Detailed Implementation

[0024] Example 1

[0025] like Figure 1-3 As shown, this utility model provides a slow-release device for attracting citrus psyllids, including a bottle body 1, a cover plate 2 hinged to the bottle mouth of the bottle body 1, and a connecting tube 3 connected to the cover plate 2. When the connecting tube 3 is fully inserted into the bottle body 1, the slow-release device is in a sealed state, and when the connecting tube 3 is partially inserted into the bottle body 1, the slow-release device is in an open state.

[0026] The movable end of the connecting cylinder 3 is fixedly provided with a first sealing protrusion 6. The bottom and middle part of the bottle body 1 are respectively provided with a first limiting groove 7 and a second limiting groove 8. The inner sides of the first limiting groove 7 and the second limiting groove 8 are provided with annular grooves that are adapted to the first sealing protrusion 6. A ventilation structure is provided on the second limiting groove 8.

[0027] The attractant is filled inside the bottle body 1, and the bottom of the bottle body 1 is set in an inverted cone shape. When the connecting tube 3 is fully inserted into the bottle body 1, the first sealing protrusion 6 at the end of the connecting tube 3 is adapted to the first limiting groove 7. At this time, the gap between the connecting tube 3 and the bottle body 1 is sealed by the first sealing protrusion 6. When the attractant needs to be released, the connecting tube 3 is pulled outward. During the pulling process, the first sealing protrusion 6 will contact the second limiting groove 8. After the first sealing protrusion 6 enters the annular groove inside the second limiting groove 8, the pulling is stopped. At this time, most of the gap between the connecting tube 3 and the bottle body 1 is blocked, and only the connecting groove 9 is left for the attractant to evaporate, achieving a slow release effect. The first sealing protrusion 6 and the second sealing protrusion 10 can be the protrusion structure formed when the connecting tube 3 is formed, or they can be sealing rings installed on the connecting tube 3. The sealing rings are made of silicone rubber with a hardness of 60±5 Shore A. The depth of the annular groove is 0.5mm deeper than the height of the sealing protrusion, forming an interference fit to prevent the agent from leaking.

[0028] like Figure 2As shown. The ventilation structure is a vertically formed connecting groove 9 inside the second limiting groove 8, and the depth of the connecting groove 9 is greater than the depth of the annular groove. By setting multiple connecting grooves 9, when the first sealing protrusion 6 is adapted to the annular groove of the second limiting groove 8, the connecting groove 9 is not blocked by the first sealing protrusion 6, and at this time, the attractant is released slowly through the *Clematis chinensis* 9.

[0029] As a preferred embodiment of this utility model, the connecting grooves 9 are distributed at equal angles around the axis of the second limiting groove 8. The number of connecting grooves 9 is set to 4-6, each groove is 2mm wide and 5mm deep (greater than the 2mm depth of the annular groove), and they are evenly distributed around the axis of the second limiting groove 8. The edges of the groove openings are rounded to prevent burrs from puncturing the sealing protrusion.

[0030] Example 2

[0031] like Figure 4 As shown, the ventilation structure is an evaporation hole 11 disposed on the tube body 1, and the evaporation hole 11 is located between the first limiting groove 7 and the second limiting groove 8. When the first sealing protrusion 6 moves to be adapted to the second limiting groove 8, the attractant in the tube body 1 can evaporate through the evaporation hole 11.

[0032] Example 3

[0033] like Figure 5-6 As shown, this utility model provides a slow-release device for attracting citrus psyllids, including a bottle body 1, a cover plate 2 hinged to the bottle mouth of the bottle body 1, and a connecting tube 3 connected to the cover plate 2. When the connecting tube 3 is fully inserted into the bottle body 1, the slow-release device is in a sealed state, and when the connecting tube 3 is partially inserted into the bottle body 1, the slow-release device is in an open state.

[0034] The bottle body 1 has a first limiting groove 7 in the middle. The movable end and the middle part of the connecting cylinder 3 are respectively provided with a first sealing protrusion 6 and a second sealing protrusion 10. An evaporation hole 11 is provided between the first sealing protrusion 6 and the second sealing protrusion 10. The inner side of the first limiting groove 7 is provided with an annular groove that can be adapted to the first sealing protrusion 6 or the second sealing protrusion 10.

[0035] When the connecting tube 3 is fully inserted into the bottle body 1, the second sealing protrusion 10 on the connecting tube 3 is adapted to the annular groove on the inner side of the first limiting groove 7. Through the adaptation of the second sealing protrusion 10 and the first limiting groove 7, the gap between the connecting tube 3 and the bottle body 1 is sealed, and the bottle body is in a sealed state. By pulling the connecting tube 3 outward until the first sealing protrusion 6 is adapted to the first limiting groove 7, the evaporation hole 11 moves above the first limiting groove 7. Through the evaporation hole 11, the inside of the bottle body 1 is in a state of communication with the outside, which can realize the slow release of the attractant.

[0036] In a preferred embodiment of this utility model, the evaporation holes 11 are arranged at equal angles around the axis of the connecting cylinder 3. The number of evaporation holes 11 is set to 6-8, the hole diameter is 1.5mm, they are evenly distributed around the axis of the connecting cylinder 3, and the center of the hole is 30mm away from the lower end face of the connecting cylinder 3.

[0037] like Figure 1 , Figure 3 and Figure 4 As shown in the diagram, evaporation grooves 4 are equidistantly arranged at the bottle mouth of the bottle body 1. A connecting seat 5 is fixedly connected to the cover plate 2. When the bottle body 1 is in a sealed state, the connecting seat 5 and the bottle mouth 1 are in an interference fit. When the cover plate 2 is closed to the bottle mouth of the bottle body 1, the connecting seat 5 is inserted into the bottle mouth. Since the outer diameter is slightly larger than the inner diameter of the bottle mouth, the two form a compression interference fit with a clearance ≤0.1mm. At this time, the cover plate 2 is not easily opened to prevent the slow-release device from being opened during transportation.

Claims

1. A slow-release device for attracting citrus psyllids, characterized in that: Includes a bottle body (1), a cover plate (2) hinged to the bottle mouth of the bottle body (1), and a connecting tube (3) connected to the cover plate (2). When the connecting tube (3) is fully inserted into the bottle body (1), the slow-release device is in a sealed state, and when the connecting tube (3) is half inserted into the bottle body (1), the slow-release device is in an open state. The movable end of the connecting tube (3) is fixedly provided with a first sealing protrusion (6). The bottom and middle part of the bottle body (1) are respectively provided with a first limiting groove (7) and a second limiting groove (8). The inner sides of the first limiting groove (7) and the second limiting groove (8) are both provided with an annular groove that matches the first sealing protrusion (6). A ventilation structure is provided between the second limiting groove (8) and the first limiting groove (7).

2. The citrus psyllid attractant slow-release device as described in claim 1, characterized in that: The ventilation structure is a vertically formed connecting groove (9) inside the second limiting groove (8), and the depth of the connecting groove (9) is greater than the depth of the annular groove.

3. The citrus psyllid attractant slow-release device as described in claim 2, characterized in that: The connecting groove (9) is distributed at equal angles around the axis of the second limiting groove (8).

4. The citrus psyllid attractant slow-release device as described in claim 1, characterized in that: The ventilation structure is an evaporation hole (11) provided on the bottle body (1), and the evaporation hole (11) is located between the first limiting groove (7) and the second limiting groove (8).

5. The citrus psyllid attractant slow-release device as described in claim 1, characterized in that: The bottle body (1) has a first limiting groove (7) in the middle. The movable end and the middle part of the connecting cylinder (3) are respectively provided with a first sealing protrusion (6) and a second sealing protrusion (10). An evaporation hole (11) is provided between the first sealing protrusion (6) and the second sealing protrusion (10). An annular groove that can be adapted to the first sealing protrusion (6) or the second sealing protrusion (10) is provided on the inner side of the first limiting groove (7).

6. The citrus psyllid attractant slow-release device as described in claim 5, characterized in that: The evaporation holes (11) are set at equal angles around the axis of the connecting cylinder (3).

7. A slow-release device for attracting citrus psyllids as described in any one of claims 1-6, characterized in that: The bottle body (1) has evaporation grooves (4) evenly spaced at the bottle mouth, and a connecting seat (5) is fixedly connected to the cover plate (2). When the bottle body (1) is in a sealed state, the connecting seat (5) and the bottle mouth of the bottle body (1) are interference fit.

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