A release device for a rhynchophorus ferinus field population

Abstract

The utility model provides a kind of flower velvet aphid forest population release device, it is related to forestry management technical field, it includes shell, release cavity and containing cavity for placing flower velvet aphid adult are set in shell, containing cavity side is connected with guide channel, rotatable pivot is set in containing cavity, pull belt is wound on pivot, pull belt end portion is worn to shell outside along guide channel, and with the shell other side away from guide channel can be detachably connected.The design, through the release cavity of shell provides relatively closed containing space for flower velvet aphid adult, so that it can smoothly fly from release cavity and complete population release task.Containing cavity is set in shell inside, pull belt is wound in containing cavity, pull belt can extend outward and connect to the other end of shell, so that shell can be fixed on host plant by pull belt embracing or hanging mode, avoid damage to bark and wood structure and other tissues.

Description

Technical Field

[0001] This utility model relates to the field of forestry management technology, and in particular to a release device for inter-species populations of *Hypericum fasciatum* in forests. Background Technology

[0002] The flower-tailed parasitic beetle is a natural enemy of forest pests such as longhorn beetles and bark beetles. Biological control through the artificial release of adult flower-tailed parasitic beetles can effectively reduce the use of chemical pesticides, aligning with the development needs of modern forestry's green ecological pest control, and is widely used in integrated pest management in forests. Current technologies for releasing flower-tailed parasitic beetles generally utilize release containers to provide them with a temporary survival environment and fix them in the pest's activity area on trees.

[0003] Currently, most existing methods for releasing the parasitic beetle involve structural designs such as opening notches in the tree trunk to place containers or directly nailing them to the trunk. These methods have certain drawbacks. For example, the operation of opening notches and nailing directly damages the tree bark and other tissues, creating mechanical wounds that may damage the tree's vascular tissues. This mechanical damage can also create entry points for pathogens and borers, which may lead to weakened tree growth or death in the long run, thus affecting the health of the forest ecosystem to some extent. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a release device for *Hypericum fasciatum* populations in forests.

[0005] The technical solution to the technical problem solved by this utility model is as follows: This utility model proposes a release device for a population of *Hymenochrysis elegans* in a forest, comprising a shell, a release chamber for placing adult *Hymenochrysis elegans* beetles inside the shell; a receiving chamber located inside the shell, one side of which is connected to a guide channel; a rotatable shaft is provided inside the receiving chamber, a pull strap is wound on the shaft, and the end of the pull strap extends out along the guide channel to the outside of the shell and is detachably connected to the other side of the shell away from the guide channel.

[0006] Preferably, the rotating shaft is a damped rotating shaft.

[0007] Preferably, the open end of the receiving cavity is arranged facing upwards, and a cover plate is detachably connected to the top of the receiving cavity.

[0008] Preferably, the bottom of the receiving cavity is provided with an insertion port, and the inner side of the housing is provided with a threaded hole, the threaded hole passing through the insertion port and perpendicular to the insertion port; the bottom of the rotating shaft is connected to an insertion plate, the insertion plate having a through hole, after the insertion plate is fitted and inserted into the insertion port, the through hole and the threaded hole are coaxial; it also includes a positioning bolt, the positioning bolt being fitted and connected to the threaded hole and passing through the through hole, positioning the insertion plate in the insertion port.

[0009] Preferably, an clearance hole is provided above the cover plate, and a screw head is connected above the rotating shaft. The screw head freely passes through the clearance hole and is placed above the cover plate.

[0010] Preferably, an clearance hole is provided above the cover plate, a spline shaft is connected to the rotating shaft, the spline shaft passes through the clearance hole and is positioned above the clearance hole, and a slidable spline cap is fitted on the spline shaft; a limit groove is provided above the cover plate, a limit block is fixed at the bottom of the spline cap, and the limit block is adapted to the limit groove for insertion.

[0011] Preferably, an anti-detachment disc is fixedly connected to the top of the spline shaft, the anti-detachment disc slides vertically inside the anti-detachment cap, and the inner diameter of the anti-detachment disc is larger than the inner diameter of the spline shaft; an anti-detachment ring is connected to the bottom of the spline cap, and the inner ring of the anti-detachment ring has spline teeth that are adapted to the spline shaft.

[0012] Preferably, the pull strap extends out of the guide channel and is connected to a plug; a positioning groove is provided on the side of the housing away from the guide channel, and the plug is adapted to the positioning groove for insertion.

[0013] Preferably, the plug and the positioning groove are connected by magnetic attraction and / or snap-fit ​​connection.

[0014] Preferably, an adhesive plate is connected to the inner side of the housing.

[0015] The above technical solution has the following advantages or beneficial effects: 1. In this invention, the release cavity of the shell provides a relatively enclosed and safe containment space for the adult flower beetle, creating a suitable survival environment so that it can successfully fly out of the release cavity to complete the population release task. A containment cavity is provided inside the shell, and a pull strap is wound inside the containment cavity. The pull strap can extend outward and connect to the other end of the shell, allowing the shell to be fixed to the host plant by the pull strap wrapping around or suspending it, thus avoiding damage to the bark and woody structures.

[0016] 2. In this utility model, the rotating shaft, through its assembly design, can be detachably placed inside the receiving cavity, thereby reducing the difficulty of processing and manufacturing. In subsequent maintenance stages, if the rotating shaft or other components inside the receiving cavity malfunction, simply unscrew the positioning bolts to pull the insert plate out of the socket, thereby allowing the rotating shaft to be disassembled, repaired, or replaced individually.

[0017] 3. In this utility model, a spline shaft is connected above the rotating shaft. After the spline shaft passes through the cover plate, a slidable spline sleeve is connected. The spline sleeve can be inserted and fixed above the cover plate, thereby realizing real-time adjustment of the extension length of the pull strap. During the installation process, the pull strap is tightened by screwing on the spline cap, thereby enhancing the tightness of the embrace around the trunk or branches and preventing slight loosening due to wind and rain shaking or external force contact. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0019] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of the receiving cavity in Embodiment 1 of this utility model.

[0021] Figure 3 This is a partially enlarged view of the connection between the pull strap and the positioning groove of this utility model.

[0022] Figure 4 This is a schematic diagram of the shell of this utility model being connected to the host plant by means of a pull strap.

[0023] Figure 5 This is a three-dimensional structural diagram of Embodiment 2 of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of Embodiment 3 of the present utility model.

[0025] Figure 7 This is a schematic diagram of the internal structure of the three accommodating cavities in the embodiments of this utility model.

[0026] Figure 8 This is an exploded structural diagram of three spline shafts and spline caps according to embodiments of this utility model.

[0027] Explanation of reference numerals in the attached figures: 1. Housing; 2. Release chamber; 3. Receiving chamber; 4. Guide channel; 5. Rotating shaft; 6. Pull strap; 7. Cover plate; 8. Socket; 9. Threaded hole; 10. Insert plate; 11. Positioning bolt; 12. Clearance hole; 13. Tightening head; 14. Splined shaft; 15. Splined cap; 16. Limiting groove; 17. Limiting block; 18. Anti-detachment disc; 19. Anti-detachment ring; 20. Plug; 21. Positioning groove; 22. Adhesive plate; 23. Vent hole. Detailed Implementation

[0028] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0029] It should be noted that in the description of this invention, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0030] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Example 1 like Figures 1 to 4 As shown, this embodiment proposes a release device for a population of *Hymenochrysis elegans* in a forest, including a shell 1. A release chamber 2 for placing *Hymenochrysis elegans* is provided inside the shell 1. Several ventilation holes 23 are provided on the outside of the shell 1, and these ventilation holes 23 are connected to the release chamber 2 to ensure the ventilation needs of the adult *Hymenochrysis elegans* in the release chamber 2. A receiving chamber 3 is provided inside the shell 1. A guide channel 4 is connected to one side (left side) of the receiving chamber 3, and a rotatable shaft 5 is provided inside the receiving chamber 3. A pull strap 6 is wound around the shaft 5, and the end of the pull strap 6 extends along the guide channel 4 to the outside of the shell 1, and is detachably connected to the other side (right side) of the shell 1 away from the guide channel 4.

[0032] Traditional methods of releasing velvet beetles often involve inserting soft clips into the trunk through notches or directly attaching them to the trunk, resulting in mechanical damage to the bark and other parts of the tree. This method not only damages the tree's vascular tissue but also creates entry points for pathogens and borers, which can lead to weakened or dead trees in the long run, thus affecting the health of the forest ecosystem.

[0033] Based on this, in the design of this application, the release force of the shell 1 provides a relatively closed and safe containment space for the adult flower beetle, creating a suitable survival environment so that it can successfully fly out of the release chamber 2 to complete the population release task. The shell 1 is fixed to the host plant by the binding method of the strap 6, avoiding damage to the bark and wood structure.

[0034] During installation, first pull one end of the pull strap 6 out from inside the rotating shaft 5 along the guide channel 4, wrap it around the tree trunk or branch, and then connect it to the other side of the housing 1. No tools or complicated operations are required during the process, improving the efficiency of forest release operations. (Reference) Figure 4 With the help of the design of the pull strap 6, the three installation methods can be used to securely install the pull strap 6 by wrapping or hanging it, regardless of whether it is a trunk of different thickness or a branch of different shape, through appropriate binding points.

[0035] In this embodiment, the rotating shaft 5 is a damping rotating shaft. The characteristics of the damping rotating shaft allow the pull strap 6 to be pulled out only when an external force is applied during the release process. When the pull strap 6 is positioned at the target location, the resistance generated by the damping rotating shaft can form a certain degree of locking effect, effectively preventing the pull strap 6 from loosening when it wraps around tree branches or trunks, thereby ensuring the stability of the housing 1. The damping rotating shaft has a base end and a rotating end, which can rotate relative to each other. The base end is connected to the receiving cavity 3, and the rotating end is located above the base end. The pull strap 6 is wound around its outside, and its rotational characteristics are used to release or retrieve the pull strap 6.

[0036] refer to Figure 1 In this embodiment, the open end of the receiving cavity 3 faces upward, and a cover plate 7 is detachably connected to the top of the receiving cavity 3. The detachable cover plate 7 creates a closed space inside the receiving cavity 3, preventing insects and debris from entering and thus avoiding interference or damage to components such as the starting shaft 5 and the pull strap 6. Furthermore, the detachable nature of the cover plate 7 allows it to be removed during device release and retraction. The shaft 5 can be manually screwed down to rewind the pull strap 6 back into the receiving cavity 3, facilitating placement or reuse. Specifically, the cover plate 7 and the receiving cavity 3 can be detached and secured using screws, snap-fit ​​connections, or other methods.

[0037] refer to Figure 2 In this embodiment, an insertion port 8 is provided at the bottom of the receiving cavity 3, and a threaded hole 9 is provided inside the housing 1. The threaded hole 9 passes through the insertion port 8 and is perpendicular to it. A mounting plate 10 is connected to the bottom of the rotating shaft 5. The mounting plate 10 has a through hole. After the mounting plate 10 is fitted into the insertion port 8, the center lines of the through hole and the threaded hole 9 are on the same axis. A positioning bolt 11 is also included. During the fitting and connection of the positioning bolt 11 with the threaded hole 9, it passes through the aforementioned through hole, thereby positioning the mounting plate 10 inside the insertion port 8.

[0038] During the manufacturing stage, the assembly connection between the aforementioned rotating shaft 5 and the receiving cavity 3 significantly reduces processing difficulty, and the assembly effect is far superior to traditional welding methods, making it suitable for large-scale production needs. In the subsequent maintenance stage, if components such as the rotating shaft 5 malfunction, simply unscrew the positioning bolt 11 to pull the insert plate 10 out of the insertion port 8, thereby allowing the rotating shaft 5 to be disassembled, repaired, or replaced individually, thus reducing usage costs.

[0039] In this embodiment, the pull strap 6 extends out of the guide channel 4 and is connected to a plug 20; a positioning groove 21 is provided on the side of the housing 1 away from the guide channel 4, and the plug 20 is adapted to the positioning groove 21 for insertion, thereby enabling the other end of the pull strap 6 to be fixed.

[0040] Furthermore, the plug 20 and the positioning groove 21 are connected by magnetic attraction and / or snap-fit. This connection method ensures a tight fit between the plug 20 and the positioning groove 21, preventing the pull strap 6 from loosening or falling off due to external force. This quick-connect method eliminates the need for other tools; simply align the plug 20 with the positioning groove 21 and gently push or attach it to quickly fix the pull strap 6, significantly reducing installation and disassembly time.

[0041] In some embodiments, an adhesive plate 22 is connected to the inner wall of the housing 1, and a peel-off sticker is attached to the inner wall of the adhesive plate 22. During installation, the adhesive plate 22 can be used for auxiliary positioning, facilitating installation by a single person. Specifically, after the pull strap 6 is pulled outward to a certain length, the inner wall of the housing 1 is adhered to the host plant installation area via the adhesive plate 22. Then, the pull strap 6 is further pulled out, wraps around the trunk or branches, and connects to the positioning groove 21 on the other side, thereby achieving rapid installation and fixation of the housing 1.

[0042] Example 2 like Figure 5 As shown, in this embodiment, based on embodiment 1, an avoidance hole 12 is provided above the cover plate 7, and a screw head 13 is connected above the rotating shaft 5. The screw head 13 only passes through the avoidance hole 12 and is placed above the cover plate 7.

[0043] In Example 1, due to the inherent characteristics of the rotating shaft 5, it lacks an automatic rotation function. Adjusting the length of the pull belt 6 requires opening the cover plate 7 and then manually rotating the shaft 5, which is cumbersome. Especially during the installation of the pull belt 6, if it is stretched too long, causing loosening and preventing a tight, secure fit, the cover plate 7 must be repeatedly opened for adjustment. Retracting the pull belt 6 also requires opening the cover. Therefore, this embodiment utilizes an exposed rotating head 13, allowing direct rotation of the rotating shaft 5 without disassembling the cover plate 7, enabling real-time adjustment of the pull belt 6's extension length. Simultaneously, during the retraction phase, the pull belt 6 can be quickly wound into the receiving cavity 3 for easy storage or reuse.

[0044] The pull strap 6 can be adjusted directly via the screw head 13 without disassembling the cover plate 7, eliminating the steps of opening, adjusting, and closing the cover. When installing in batches in the forest, it can quickly correct the problem of the pull strap 6 being too long, ensuring a tight embrace and fixation of the trunk or branches; during retrieval, the pull strap 6 can also be directly wound up, greatly shortening the operation time of the device, and is especially suitable for the needs of efficient operations in the forest.

[0045] Example 3 like Figures 6 to 8 As shown, in this embodiment, based on embodiment 1, an avoidance hole 12 is provided above the cover plate 7, and a spline shaft 14 is connected above the rotating shaft 5. The spline shaft 14 freely passes through the avoidance hole 12 and is placed above the avoidance hole 12. A slidable spline cap 15 is sleeved on the spline shaft 14, and a limit block 17 is fixedly connected to the bottom of the spline cap 15. The limit block 17 is adapted to the limit groove 16 for insertion.

[0046] In this design, the hinge 5 can be rotated by rotating the keycap without opening the cover plate 7, thereby adjusting the length of the pull strap 6. After adjustment, the spline cap 15 is slid downwards, allowing the limiting block 17 to insert into the limiting groove 16, thus locking the hinge 5 in its current state. In the above embodiment, although the damping hinge itself has a certain self-locking capability, long-term exposure to the forest environment, especially when using a wraparound installation, may result in slight loosening due to wind and rain, shaking, or external force.

[0047] In this embodiment, the pull strap 6 can be further tightened by the spline cap 15. After the ideal tightness is achieved, the spline cap 15 is pressed down to make the limiting block 17 and the limiting groove 16 engage, forming a complete lock on the rotating shaft 5, thereby avoiding problems such as the pull strap 6 coming loose.

[0048] refer to Figures 7 to 8 Furthermore, an anti-detachment disc 18 is fixedly connected to the top of the splined shaft 14. The anti-detachment disc 18 slides vertically within the anti-detachment cap, and its inner diameter is larger than that of the splined shaft 14. An anti-detachment ring 19 is connected to the bottom of the splined cap 15, and the inner ring of the anti-detachment ring 19 has spline teeth that are adapted to the splined shaft 14. In this design, the anti-detachment disc 18 is always within the space between the anti-detachment cap and the anti-detachment ring 19, thereby preventing the splined cap 15 from detaching from the splined shaft 14 and ensuring that the splined cap 15 always maintains a fit with the splined shaft 14.

[0049] Although the specific embodiments of the utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the utility model. Based on the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the utility model.

Claims

1. A release device for *Hypericum floridum* species in forests, characterized in that, include: The shell (1) has a release cavity (2) inside for placing adult flower velvet beetles. A receiving cavity (3) is opened inside the housing (1), and a guide channel (4) is connected to one side of the receiving cavity (3); a rotatable shaft (5) is provided inside the receiving cavity (3), and a pull strap (6) is wound on the shaft (5). The end of the pull strap (6) extends out along the guide channel (4) to the outside of the housing (1) and is detachably connected to the other side of the housing (1) away from the guide channel (4).

2. The inter-forest population release device for *Hypericum fasciatus* according to claim 1, characterized in that, The rotating shaft (5) is a damping rotating shaft.

3. The inter-forest population release device for *Hypericum fasciatum* according to claim 1, characterized in that, The open end of the receiving cavity (3) is arranged facing upwards, and a cover plate (7) is detachably connected to the top of the receiving cavity (3).

4. The inter-forest population release device for *Hypericum fasciatum* according to claim 1, characterized in that, The bottom of the receiving cavity (3) is provided with an insertion port (8), and the inner side of the housing (1) is provided with a threaded hole (9). The threaded hole (9) passes through the insertion port (8) and is perpendicular to the insertion port (8). The bottom of the rotating shaft (5) is connected to a plate (10). The plate (10) has a through hole. After the plate (10) is fitted and inserted into the insertion port (8), the through hole and the threaded hole (9) are coaxial. The shaft (5) also includes a positioning bolt (11). The positioning bolt (11) is fitted and connected to the threaded hole (9) and passes through the through hole to position the plate (10) in the insertion port (8).

5. The inter-forest population release device for *Hypericum fasciatus* according to claim 3, characterized in that, An avoidance hole (12) is provided above the cover plate (7), and a screw head (13) is connected above the rotating shaft (5). The screw head (13) freely passes through the avoidance hole (12) and is placed above the cover plate (7).

6. The inter-forest population release device for *Hypericum fasciatum* according to claim 3, characterized in that, An clearance hole (12) is provided above the cover plate (7). A spline shaft (14) is connected to the rotating shaft (5). The spline shaft (14) passes through the clearance hole (12) and is placed above the clearance hole (12). A slidable spline cap (15) is fitted on the spline shaft (14). A limit groove (16) is provided above the cover plate (7). A limit block (17) is fixed at the bottom of the spline cap (15). The limit block (17) is adapted to the limit groove (16) and is inserted into it.

7. A forest population release device for *Hypericum fasciatus* according to claim 6, characterized in that, The top of the spline shaft (14) is fixedly connected to an anti-detachment disc (18), which slides vertically inside the anti-detachment cap. The inner diameter of the anti-detachment disc (18) is larger than the inner diameter of the spline shaft (14). The bottom of the spline cap (15) is connected to an anti-detachment ring (19), and the inner ring of the anti-detachment ring (19) has spline teeth that are compatible with the spline shaft (14).

8. The inter-forest population release device for *Hypericum fasciatum* according to claim 1, characterized in that, The pull strap (6) extends out of the guide channel (4) and is connected to a plug (20); a positioning groove (21) is provided on the side of the housing (1) away from the guide channel (4), and the plug (20) is adapted to the positioning groove (21) for insertion.

9. A forest population release device for *Hypericum fasciatus* according to claim 8, characterized in that, The plug (20) and the positioning groove (21) are connected by magnetic attraction and / or snap-fit ​​connection.

10. A forest population release device for *Hypericum fasciatus* according to claim 1, characterized in that, An adhesive plate (22) is connected to the inner side of the housing (1).

Images