A culture cage for eriocheir sinensis capable of effectively preventing escape
By introducing structures such as insert rods, adjustment rods, and snap-fit components into the crab farming cages, the problems of loose top covers and inconvenient disassembly have been solved, enabling convenient disassembly and stable connection, and improving the anti-escape effect and environmental adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SIJI LIANYANG AGRICULTURAL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-09
Smart Images

Figure CN224330154U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crab farming cages, and in particular to a crab farming cage that can effectively prevent escape. Background Technology
[0002] The main purpose of crab farming cages is to artificially raise crabs. They play an important role in the intensive or semi-intensive farming of crabs in freshwater areas such as ponds, lakes and reservoirs.
[0003] Chinese patent application number CN202022470170.X provides a crab farming cage. This design is convenient to place in shallow water and can be raised and lowered for removal. Specifically, the farming cage is placed in a shallow water area, the handle is cranked to lower the cultivation box to the cultivation liquid, and the device can be reset when checking the farming situation, reducing the need for manual removal and repositioning.
[0004] Existing crab farming cages have certain drawbacks. Firstly, because crabs have a strong climbing ability, the top covers of commonly used crab farming cages are mostly fixed structures or bolts. However, after long-term use, it is quite laborious to maintain the crab farming cages or remove the top covers to take out the crabs, which affects the convenience of maintenance and use. Therefore, we propose a crab farming cage that can effectively prevent escape. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a crab farming cage that can effectively prevent the crabs from escaping. By setting the plug rod and the adjustment rod, the top cover and the main body of the farming cage can have multiple positioning structures to prevent the crabs from escaping. At the same time, the disassembly and maintenance of the positioning structures are more convenient, and the risk of structural loosening or even damage caused by frequent opening of the loose cover is reduced, thus improving the practicality of the crab farming cage.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0007] A crab farming cage that effectively prevents escape includes a main body of the cage, a top cover movably connected to the top of the main body, and four insert rods fixedly connected to the bottom corners of the top cover. A slot is provided at the inner end of the main body of the cage, and elastic members are fixedly connected to the inner ends of symmetrically distributed slots within the slot. A locking head is fixedly connected to the front end of the elastic members. An adjustment groove is provided at the inner end of the main body of the cage, and an adjustment rod is slidably connected inside the adjustment groove. The outer end of the adjustment rod extends through to the outer end of the main body of the cage.
[0008] The practicality of this crab farming cage can be improved by installing insert rods and adjustment rods.
[0009] Furthermore, a snap-fit component is fixedly connected to the outer end of the adjusting rod.
[0010] By installing the snap-fit connector, which has an arc-shaped snap-fit structure, it can be snapped into the arc-shaped snap-fit groove on the upper part of the plug rod.
[0011] Furthermore, an elastic ring is sleeved on the outer end of the adjusting rod, and a guide ring is movably connected to the outer side of the elastic ring, with the guide ring fixedly connected to the outer end of the adjusting rod.
[0012] By installing elastic rings and guide rings, the position adjustment of the adjusting rod and the locking device can be made more convenient.
[0013] Furthermore, the outer end of the main body of the breeding cage is provided with a ventilation groove, and the inner end of each ventilation groove is fixedly connected with an escape-proof net.
[0014] By installing escape-proof nets, the crab farming cages are kept well-oxygenated.
[0015] Furthermore, connecting frames are fixedly connected to both ends of the top cover, and receiving frames are fixedly connected to both ends of the main body of the breeding cage.
[0016] By installing a connecting bracket, a connecting support structure can be formed at the outer end of the clamp rod, allowing the clamp rod to be stably connected to the receiving bracket.
[0017] Furthermore, a locking rod is fixedly connected to the bottom end of the connecting frame, and a threaded ring is threaded to the outer end of the locking rod.
[0018] By installing locking levers, the escape prevention effect of the crab farming cage is effectively improved.
[0019] Furthermore, a base frame is fixedly connected to the bottom of the main body of the breeding cage, and reinforcing blocks are fixedly connected to both ends of the base frame. An insert is bolted to the inner end of the reinforcing block, and a connecting cap is threaded to the top of the insert.
[0020] By installing inserts and connecting caps, the crab farming cages can be inserted into the mud more easily and stably.
[0021] Furthermore, each of the outer ends of the insert is bolted to a mounting block, and a reinforcing rod is fixedly connected to the inner end of each pair of mounting blocks.
[0022] By installing a reinforcing rod, a reinforcement structure can be formed between a pair of inserts, making the inserts more stable when inserted into the soil.
[0023] In summary, this utility model has the following beneficial effects:
[0024] 1. By setting up insertion rods and adjustment rods, the insertion rods have a larger diameter at the top and a smaller diameter at the bottom, and both have arc-shaped locking grooves on the outside. When the top cover needs to be disassembled from the main body of the breeding cage, simply pull the multiple T-shaped adjustment rods. The adjustment rods, in conjunction with the force of the elastic ring, will cause the locking parts to separate from the upper end of the insertion rods. Then, pull the top cover. Under the force, the elastic element will drive the locking head to adjust its position. The locking head will then separate from the lower part of the insertion rod and release the positioning. This allows the top cover and the main body of the breeding cage to have multiple positioning structures to prevent the crabs from escaping. At the same time, the disassembly and maintenance of the positioning structures are more convenient, and the risk of structural loosening or even damage due to frequent opening of the loose cover is reduced, thus improving the practicality of the crab breeding cage.
[0025] 2. By setting a snap-fit component, which is an arc-shaped snap-fit structure, it can snap into the arc-shaped snap-fit groove on the upper part of the plug rod. When it moves under external force, it is also more convenient to separate and release the positioning.
[0026] 3. By setting up the insertion tube and connecting cover, a certain amount of processing blocks or stones or other heavy objects can be placed inside the insertion tube. By connecting it with the connecting cover, the weight of the insertion tube can be adjusted, making it easier for the crab farming cage to be weighted up to adapt to different environmental conditions, and making it easier and more stable to insert the crab farming cage into the mud. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure in this embodiment;
[0028] Figure 2 This is a three-dimensional structural diagram of the insertion rod in this embodiment;
[0029] Figure 3 This is a schematic diagram of the front cross-section of the main body of the breeding cage in this embodiment;
[0030] Figure 4 This is in this embodiment Figure 2 A magnified structural diagram of the plane at point A in the middle;
[0031] Figure 5 This is in this embodiment Figure 2 A magnified schematic diagram of the plane at point B.
[0032] In the diagram, 1. Main body of the breeding cage; 2. Ventilation trough; 3. Escape prevention net; 4. Top cover; 5. Connecting frame; 6. Supporting frame; 7. Clamping rod; 8. Threaded ring; 9. Base frame; 10. Reinforcing block; 11. Insert tube; 12. Connecting cover; 13. Mounting block; 14. Reinforcing rod; 15. Inserting rod; 16. Clamping groove; 17. Elastic component; 18. Clamping head; 19. Adjusting rod; 20. Clamping component; 21. Elastic ring; 22. Adjusting groove; 23. Guide ring. Detailed Implementation
[0033] The present invention will be further described in detail below with reference to the accompanying drawings.
[0034] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.
[0035] Reference Figure 1-5 As shown, a preferred embodiment of the present invention provides a crab farming cage that can effectively prevent escape. The cage includes a main body 1, a top cover 4 movably connected to the top of the main body 1, and four insertion rods 15 fixedly connected to the bottom corners of the top cover 4. A slot 16 is provided at the inner end of the main body 1. An elastic element 17 is fixedly connected to the inner end of the symmetrically distributed slots inside the slot 16. A locking head 18 is fixedly connected to the front end of the elastic element 17. An adjustment groove 22 is provided at the inner end of the main body 1. An adjustment rod 19 is slidably connected inside the adjustment groove 22. The outer end of the adjustment rod 19 extends through to the outer end of the main body 1.
[0036] Reference Figure 3-5 As shown, the outer end of the adjusting rod 19 is further fixedly connected to a snap-fit member 20.
[0037] Reference Figure 3-5 As shown, further, an elastic ring 21 is sleeved on the outer end of the adjusting rod 19, and a guide ring 23 is movably connected to the outer side of the elastic ring 21. The guide ring 23 is fixedly connected to the outer end of the adjusting rod 19.
[0038] By installing the insertion rod 15, which has a larger diameter at the top and a smaller diameter at the bottom and is equipped with arc-shaped locking grooves on the outside, when the top cover 4 needs to be disassembled from the main body 1 of the breeding cage, simply pull the multiple T-shaped adjustment rods 19. The adjustment rods 19, in conjunction with the force of the elastic ring 21, will cause the locking piece 20 to separate from the upper end of the insertion rod 15. The elastic ring 21 and the guide ring 23 can move together with the adjustment rod 19. The guide ring 23 slides inside the adjustment groove 22, stabilizing the adjustment rod 19. When the adjustment rod 19 loses external force, the elastic ring 21 can drive the adjustment rod... 19. Reset the top cover 4 and pull it. Under the force, the elastic element 17 drives the locking head 18 to adjust its position. The locking head 18 then separates from the lower part of the insertion rod 15 to release its positioning. The locking part 20 is an arc-shaped locking structure. It can lock with the arc-shaped locking groove on the upper part of the insertion rod 15. When it moves under external force, it is also more convenient to separate and release its positioning. This allows the top cover 4 and the main body of the breeding cage 1 to have multiple positioning structures to prevent the crabs from escaping. At the same time, it is also more convenient to disassemble and maintain the positioning structures, and reduces the risk of structural loosening or even damage caused by frequent opening of the loose cover.
[0039] Reference Figure 1-2 As shown, further, the outer end of the main body 1 of the breeding cage is provided with a ventilation groove 2, and the inner end of the ventilation groove 2 is fixedly connected with an escape prevention net 3.
[0040] Reference Figure 1 As shown, the top cover 4 is further fixedly connected to the two ends of the connecting frame 5, and the main body of the breeding cage 1 is fixedly connected to the two ends of the receiving frame 6.
[0041] Reference Figure 1 As shown, the bottom end of the connecting frame 5 is further fixedly connected to a locking rod 7, and the outer end of the locking rod 7 is threadedly connected to a threaded ring 8.
[0042] By installing multiple ventilation slots 2 in conjunction with the escape-proof net 3, the crab farming cage can effectively improve the water exchange efficiency inside and outside the cage, preventing local deterioration of water quality. The connecting frame 5 can form a connecting support structure at the outer end of the clamping rod 7, allowing the clamping rod 7 to be stably inserted into the receiving frame 6. The clamping rod 7 can be inserted and clamped inside the receiving frame 6, which can further improve the stability of the connection between the main body 1 of the farming cage and the top cover 4. Furthermore, depending on the growth or number of crabs, the threaded ring 8 can be fixed to the clamping rod 7 a second time, so that the top cover 4 and the main body 1 of the farming cage have multiple connection and positioning structures, effectively improving the escape prevention effect of the crab farming cage.
[0043] Reference Figure 1As shown, further, a base frame 9 is fixedly connected to the bottom end of the main body 1 of the breeding cage, and a reinforcing block 10 is fixedly connected to both ends of the base frame 9. An insert 11 is bolted to the inner end of the reinforcing block 10, and a connecting cover 12 is threaded to the top end of the insert 11.
[0044] Reference Figure 1 As shown, further, the outer ends of the insert 11 are all connected to mounting blocks 13 by bolts, and the inner ends of a pair of mounting blocks 13 are fixedly connected to reinforcing rods 14.
[0045] By placing certain processing blocks or stones or other heavy objects inside the insertion tube 11 and connecting it with the connecting cover 12, the weight of the insertion tube 11 can be adjusted, making it easier for the crab farming cage to be weighted to adapt to different environmental conditions. The reinforcing rod 14 can form a reinforcing structure between a pair of insertion tubes 11, making the insertion tube 11 more stable when inserted into the soil.
[0046] Specific implementation process: When using this crab farming cage, the crabs are placed inside the main body 1 of the farming cage, and then the top cover 4 is connected to the main body 1 of the farming cage. The insert rod 15 is inserted into the inner end of the slot 16. During installation, the insert rod 15 has a structure with a larger diameter at the top and a smaller diameter at the bottom, and both have arc-shaped locking grooves on the outside. Under the force, the locking head 18 and the locking part 20 are locked into the inner end of the insert rod 15, and the locking rod 7 can be inserted into the inside of the receiving frame 6, which can further improve the stability of the connection between the main body 1 of the farming cage and the top cover 4. In addition, the threaded ring 8 can be fixed to the locking rod 7 a second time according to the growth or number of crabs, so that the top cover 4 and the main body 1 of the farming cage have multiple connection and positioning structures.
[0047] When the top cover 4 and the main body of the breeding cage 1 need to be disassembled and separated, simply pull the multiple T-shaped adjustment rods 19. The adjustment rods 19, in conjunction with the force of the elastic ring 21, will cause the snap fastener 20 to separate from the upper end of the insertion rod 15. Then, pull the top cover 4. Under the force, the elastic element 17 will drive the snap head 18 to adjust its position. The snap head 18 will then separate from the lower end of the insertion rod 15 and release its positioning. This allows the top cover 4 and the main body of the breeding cage 1 to have multiple positioning structures to prevent the crabs from escaping, while also making the disassembly and maintenance of the positioning structures more convenient.
[0048] Finally, a certain amount of processing blocks or stones or other heavy objects can be placed inside the insertion tube 11 and connected with the connecting cover 12. This allows the weight of the insertion tube 11 to be adjusted, making it easier for the crab farming cage to be weighted to adapt to different environmental conditions, and making it easier and more stable to insert the crab farming cage into the soil.
[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A crab farming cage that effectively prevents escape, characterized in that: The cage includes a main body (1), a top cover (4) is movably connected to the top of the main body (1), and four corners of the bottom of the top cover (4) are fixedly connected to the insert rods (15). The inner end of the main body (1) is provided with a slot (16), and the inner end of the symmetrically distributed slots in the slot (16) is fixedly connected to an elastic element (17). The front end of the elastic element (17) is fixedly connected to a locking head (18). The inner end of the main body (1) is provided with an adjustment groove (22), and an adjustment rod (19) is slidably connected inside the adjustment groove (22). The outer end of the adjustment rod (19) extends through to the outer end of the main body (1).
2. The crab farming cage according to claim 1, characterized in that: The outer end of the adjusting rod (19) is fixedly connected to a snap-fit piece (20).
3. The crab farming cage according to claim 2, characterized in that: An elastic ring (21) is fitted on the outer end of the adjusting rod (19), and a guide ring (23) is movably connected to the outer side of the elastic ring (21). The guide ring (23) is fixedly connected to the outer end of the adjusting rod (19).
4. The crab farming cage according to claim 1, characterized in that: The outer end of the main body (1) of the breeding cage is provided with a ventilation groove (2), and the inner end of the ventilation groove (2) is fixedly connected with an escape prevention net (3).
5. The crab farming cage according to claim 1, characterized in that: The top cover (4) is fixedly connected to the two ends of the connecting frame (5), and the breeding cage body (1) is fixedly connected to the two ends of the receiving frame (6).
6. The crab farming cage according to claim 5, characterized in that: The bottom end of the connecting frame (5) is fixedly connected to a clamping rod (7), and the outer end of the clamping rod (7) is threadedly connected to a threaded ring (8).
7. A crab farming cage according to claim 5 that can effectively prevent escape, characterized in that: The bottom end of the main body (1) of the breeding cage is fixedly connected to a base frame (9), and the two ends of the base frame (9) are fixedly connected to a reinforcing block (10). The inner end of the reinforcing block (10) is connected to a tube (11) by bolts, and the top end of the tube (11) is threadedly connected to a connecting cap (12).
8. The crab farming cage according to claim 7, characterized in that: The outer ends of each insert (11) are connected to mounting blocks (13) by bolts, and the inner ends of each pair of mounting blocks (13) are fixedly connected to reinforcing rods (14).