Mesh cage for leech overwintering
By designing a leech wintering mesh cage with slide rails and rotating plates, the problem of the existing mesh cage box being unremovable is solved, and rapid disassembly and cleaning is achieved, reducing the casualty rate of leeches and improving survival rate.
Patent Information
- Application Number
- CN202422612925.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The existing mesh cages for leeches for wintering lack removable boxes, resulting in inconvenience in cleaning.
A mesh cage for leech wintering is designed, including components such as hanging cage, fixed plate, slide rail, L-shaped plate and rotating plate. Through the cooperation of sliding and rotating plates, the storage box can be quickly disassembled and installed.
The storage box is quickly disassembled, which is easy to clean or replace, reduces the casualty rate of leeches and improves survival rate.
Smart Images

Figure CN223286408U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of leech breeding, in particular to a net cage used for leeches to overwinter. Background Art
[0002] Leeches are annelids that live in freshwater environments and belong to the phylum Mollusca. They typically have flat, multi-segmented bodies with suction cups at their fronts, allowing them to attach to the skin of other aquatic animals or mammals to obtain blood for nutrition. Leech overwintering cages are specially designed to protect leeches during cold weather. These cages are typically constructed of corrosion-resistant stainless steel wire and plastic mesh, ensuring good water flow, maintaining a suitable water temperature and oxygen level, and protecting against predators.
[0003] When using the existing net cage for hibernating leeches, the nutrients required for hibernation by the leeches are usually placed in a box or directly in the net cage. Due to the lack of detachable box, the box is fixed in the net cage for a long time, which is inconvenient to clean. Utility Model Content
[0004] In order to make up for the above shortcomings, the utility model provides a net cage for leeches to overwinter, aiming to improve the problem that the net cage for leeches to overwinter lacks a detachable box when in use.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] The cam is fixedly connected to the upper surface of the fixed plate, and the outer wall of the slide rail is slidably connected to an L-shaped plate 1. The front outer wall of the L-shaped plate 1 is fixedly connected to a handle. The interior of the L-shaped plate 1 is slidably connected to a slide rod. Both ends of the slide rod are fixedly connected to a limit plate. The right outer wall of the L-shaped plate 1 is fixedly connected to a spring. The other end of the spring is fixedly connected to the L-shaped plate 2. The upper outer wall of the L-shaped plate 1 is rotatably connected to a rotating plate. The interior of the rotating plate is rotatably connected to a rotating shaft. The lower surface of the rotating shaft is fixedly connected to the upper surface of the fixed plate. The upper outer walls of the L-shaped plate 1 and the L-shaped plate 2 are both slidably connected to a storage box. The upper surface of the hanging cage is provided with a delivery assembly for delivering leeches.
[0007] Preferably, the delivery assembly includes a delivery port, the lower surface of the delivery port is fixedly connected to the upper surface of the cage, and the upper surface of the delivery port is provided with a shrink ring.
[0008] Preferably, the front inner portion of the rotating plate is rotatably connected to the outer wall of the second L-shaped plate, and the inner portion of the second L-shaped plate is slidably connected to the outer wall of the sliding rod.
[0009] Preferably, a hanging rope is provided inside the shrink ring.
[0010] Preferably, a platform is fixedly connected to the lower surface of the fixing plate.
[0011] Preferably, the outer wall of the platform is arranged on the inner wall of the cage.
[0012] Preferably, both ends of the cage are provided with ferrules.
[0013] Preferably, the outer wall of the delivery port is arranged on the inner wall of the ring.
[0014] The utility model has the following beneficial effects:
[0015] 1. In the present invention, by pushing the handle, the L-shaped plate 1 slides to the right, which drives the rotating plate to rotate to the right under the limit of the rotating shaft, so that the L-shaped plate 2 moves to the left. The storage box is released by sliding the L-shaped plate 1 and the L-shaped plate 2, so that the storage box can be quickly disassembled for cleaning or replacement.
[0016] 2. In the utility model, platforms are evenly arranged inside the hanging cage, and storage boxes are provided above the platforms, which provide a place for leeches preparing to overwinter to huddle together for warmth, reduce competition and aggressive behavior caused by environmental pressure, and reduce the casualty rate of leeches. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A three-dimensional diagram of a net cage for overwintering leeches proposed in the present invention;
[0018] Figure 2 A schematic diagram of a platform of a net cage for overwintering leeches proposed in the present invention;
[0019] Figure 3 The utility model is a schematic diagram of a storage box for a net cage used for overwintering leeches.
[0020] Legend:
[0021] 1. Cage; 2. Platform; 3. Fixed plate; 4. Slide rail; 5. L-shaped plate (1); 6. Handle; 7. Rotating plate; 8. Rotating shaft; 9. Slide rod; 10. Limit plate; 11. Spring; 12. L-shaped plate (2); 13. Storage box; 14. Ferrule; 15. Delivery port; 16. Retractable ring; 17. Lifting rope. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] Reference Figure 1-Figure 3 The utility model provides an embodiment: a net cage for hibernating leeches, comprising a hanging cage 1 and a fixed plate 3, the upper surface of the fixed plate 3 is fixedly connected to a slide rail 4, the outer wall of the slide rail 4 is slidably connected to an L-shaped plate 5, the front outer wall of the L-shaped plate 5 is fixedly connected to a handle 6, the interior of the L-shaped plate 5 is slidably connected to a slide rod 9, both ends of the slide rod 9 are fixedly connected to a limit plate 10, the right outer wall of the L-shaped plate 5 is fixedly connected to a spring 11, and the other end of the spring 11 is fixedly connected to the L-shaped plate 2 12 The upper outer wall of the L-shaped plate 1 5 is rotatably connected to a rotating plate 7, and the interior of the rotating plate 7 is rotatably connected to a rotating shaft 8. The lower surface of the rotating shaft 8 is fixedly connected to the upper surface of the fixed plate 3. The upper outer walls of the L-shaped plate 1 5 and the L-shaped plate 2 12 are slidably connected to a storage box 13. The upper surface of the hanging cage 1 is provided with a delivery assembly for delivering leeches; the delivery assembly includes a delivery port 15, the lower surface of the delivery port 15 is fixedly connected to the upper surface of the hanging cage 1, and the upper surface of the delivery port 15 is provided with a shrink ring 16;
[0024] Specifically, the opening and closing of the delivery port 15 is controlled by utilizing the shrinking ring 16, thereby controlling the effect of the leeches. When the storage box 13 needs to be cleaned, the entire net cage is dragged to the shore and the handle 6 is pushed to drive the L-shaped plate 15 to slide to the right on the outer wall of the slide rail 4, driving the rotating plate 7 to rotate to the right under the limiting effect of the rotating shaft 8, and the L-shaped plate 2 12 is driven to move to the left by the inside of the rotating plate 7. The spring 11 is squeezed by the movement of the L-shaped plate 15 and the L-shaped plate 2 12 toward the center, so that the outer walls of the L-shaped plate 15 and the L-shaped plate 2 12 slide toward the center and no longer restrict the storage box 13, thereby achieving the effect of quickly disassembling the storage box 13, and the sliding of the L-shaped plate 15 by the slide rail 4 achieves the effect of offset limitation, and the range limitation effect of the L-shaped plate 15 and the L-shaped plate 2 12 is achieved by fixing the limiting plates 10 at both ends of the slide rod 9.
[0025] Reference Figure 2 and Figure 3 The front side of the rotating plate 7 is internally connected to the outer wall of the L-shaped plate 12, and the inner part of the L-shaped plate 12 is slidably connected to the outer wall of the slide rod 9;
[0026] Specifically, the outer wall of the slide bar 9 causes the L-shaped plate 2 12 to slide, thereby achieving the effect of limiting the deviation.
[0027] Reference Figure 1A lifting rope 17 is provided inside the shrink ring 16; the lower surface of the fixed plate 3 is fixedly connected to the platform 2; the outer wall of the platform 2 is provided on the inner wall of the cage 1; both ends of the cage 1 are provided with a ring 14; the outer wall of the delivery port 15 is provided on the inner wall of the ring 14;
[0028] Specifically, the shrink ring 16 is made of elastic material, which facilitates the control of the delivery port 15. The delivery port 15 is part of the mesh cage. The materials of the hanging cage 1 and the delivery port 15 are nylon polyester mesh cloth, which is not only durable and corrosion-resistant but also provides good water permeability and air permeability, which helps to maintain water quality and improve the survival rate of leeches. The material of the ring 14 is stainless steel wire, which effectively supports the entire mesh cage structure and prevents deformation and collapse. The hanging cage 1 is four meters long and sixty-five centimeters in diameter. The platform 2 is made of polyester mesh cloth. A platform 2 is set every one meter in the hanging cage 1, providing leeches with the effect of freely choosing the depth to rest.
[0029] Working principle: When using the net cage, the contraction ring 16 is expanded by releasing the hanging rope 17, and the leeches ready for wintering are released from the release port 15. When the entire net cage is placed in water, the leeches can freely choose the depth from the water surface to four meters underwater. By pushing the handle 6, the inner wall of the L-shaped plate 1 5 slides to the right on the outer wall of the slide rail 4, driving the rotating plate 7 to rotate to the right under the limit of the rotating shaft 8. The rotating plate 7 drives the L-shaped plate 2 12 to move to the left, squeezing the spring 11. The inner wall of the storage box 13 is put on the upper outer wall of the L-shaped plate 1 5 and the L-shaped plate 2 12, and the release handle 6 drives the upper outer wall of the L-shaped plate 1 5 and the L-shaped plate 2 12 to move to both sides under the elastic force of the spring 11, and the inner wall of the storage box 13 is clamped to achieve a quick fixation effect. The sliding of the L-shaped plate 1 5 and the L-shaped plate 2 12 is limited by the fixed limit plates 10 at both ends of the slide rod 9 to achieve the effect of offset limitation. During the wintering period, the activity of leeches is low and the food intake is reduced, but a The leeches can obtain sufficient nutrition to maintain their life activities, and food is stored inside the storage box 13 to ensure that the leeches can still obtain sufficient nutrition in winter, thereby preventing the leeches from being hungry due to lack of food and improving their survival rate. At the same time, the storage box 13 provides a place for the leeches to huddle together for warmth, reducing the stress response of the leeches caused by low temperature, thereby reducing the mortality rate. The platform 2 arranged inside the hanging cage 1 provides a resting place for the leeches in the water. The hanging cage 1 provides an activity range for the leeches, which is convenient for breeders or researchers to monitor their health status and regularly check the aggregation and activity status of the leeches within the activity range. During use, the net cage not only achieves the effect of quickly fixing and disassembling the storage box 13, which is convenient for cleaning or replacing it according to needs, but also provides a resting place for the leeches, which is conducive to the leeches huddling together for warmth, thereby reducing competition and aggressive behavior caused by environmental pressure and reducing the casualty rate.
[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A net cage for overwintering leeches, comprising a hanging cage (1) and a fixing plate (3), characterized in that: The upper surface of the fixed plate (3) is fixedly connected to a slide rail (4), the outer wall of the slide rail (4) is slidably connected to an L-shaped plate (5), the front outer wall of the L-shaped plate (5) is fixedly connected to a handle (6), the interior of the L-shaped plate (5) is slidably connected to a slide rod (9), both ends of the slide rod (9) are fixedly connected to a limit plate (10), the right outer wall of the L-shaped plate (5) is fixedly connected to a spring (11), the other end of the spring (11) is fixedly connected to the left outer wall of the L-shaped plate (5). It is fixedly connected with L-shaped plate 2 (12), the upper outer wall of the L-shaped plate 1 (5) is rotatably connected with a rotating plate (7), the interior of the rotating plate (7) is rotatably connected with a rotating shaft (8), the lower surface of the rotating shaft (8) is fixedly connected to the upper surface of the fixed plate (3), the upper outer walls of the L-shaped plate 1 (5) and the L-shaped plate 2 (12) are both slidably connected with a storage box (13), and the upper surface of the hanging cage (1) is provided with a delivery assembly, which is used to deliver leeches.
2. A net cage for overwintering leeches according to claim 1, characterized in that: The delivery assembly comprises a delivery port (15), the lower surface of the delivery port (15) is fixedly connected to the upper surface of the cage (1), and the upper surface of the delivery port (15) is provided with a shrink ring (16).
3. The net cage for overwintering leeches according to claim 1, characterized in that: The front side of the rotating plate (7) is internally connected to the outer wall of the second L-shaped plate (12) in a rotatable manner, and the inside of the second L-shaped plate (12) is connected to the outer wall of the slide rod (9) in a slidable manner.
4. The net cage for overwintering leeches according to claim 2, characterized in that: A suspension rope (17) is provided inside the shrink ring (16).
5. The net cage for overwintering leeches according to claim 1, characterized in that: The lower surface of the fixed plate (3) is fixedly connected to the platform (2).
6. A net cage for overwintering leeches according to claim 5, characterized in that: The outer wall of the platform (2) is arranged on the inner wall of the cage (1).
7. The net cage for overwintering leeches according to claim 1, characterized in that: Both ends of the cage (1) are provided with ferrules (14).
8. The net cage for overwintering leeches according to claim 2, characterized in that: The outer wall of the delivery port (15) is arranged on the inner wall of the ferrule (14).