Eel catching device

Abstract

This utility model discloses a catching device for mitten crab farming. The key technical points are: belonging to the field of mitten crab catching, it includes a catcher with a seepage hole at its outer end, a connecting frame movably connected to the top of the catcher, a net fixedly connected to the top of the connecting frame, and receiving frames fixedly connected to both ends of the connecting frame; by setting pins and reinforcing blocks, the overall structure of this device uses a catcher with a non-mesh bottom in conjunction with a net with a mesh top. This structure can more gently capture mitten crabs into the catching device, minimizing damage to the crab's shell and body. Furthermore, when feeding crabs, simply pulling the positioning rod slidably connected inside the reinforcing block allows the captured mitten crabs inside the catcher to be easily removed, avoiding the problem of entanglement in traditional all-mesh structures. This makes the mitten crab catching device for mitten crab farming more practical and improves its catching efficiency.

Description

Technical Field

[0001] This utility model relates to the field of catching mitten crabs, and in particular to a catching device for mitten crab farming. Background Technology

[0002] The capture and harvesting of mitten crabs is very important in the process of mitten crab farming. Therefore, it is necessary to use mitten crab farming capture devices. The main function of mitten crab farming capture devices is to help farmers to capture crabs at the appropriate time and in a scientific and efficient manner, thereby ensuring the efficiency of the capture process, reducing damage to the crabs, and ensuring the quality and yield of the crabs. Chinese patent application number CN201220046154.0 provides a crab catcher. This solution has the advantages of compact structure, simple operation, convenient adjustment, and low manufacturing cost. It can achieve the functions of catching crabs without manual labor and high catching efficiency.

[0003] Existing catching devices for mitten crab farming have certain drawbacks. First, the traditional catching net design inevitably leads to the trap getting entangled in the crab's body when feeding it, which makes feeding the crab less convenient and reduces the practicality of the catching device. Therefore, we propose a catching device for mitten crab farming. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a catching device for mitten crab farming. By setting pins and reinforcing blocks, the net and connecting frame can be easily separated from the catcher, making it easier to remove the mitten crabs caught inside the catcher. This avoids the problem of easy entanglement when feeding with traditional all-net structures. Furthermore, the convenient top cover design can speed up the operation after catching and the reuse of the device, avoiding the inconvenience caused by difficult disassembly, thereby improving the work efficiency of the entire farming process.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A catching device for mitten crab farming includes a catcher with a seepage hole at its outer end. A connecting frame is movably connected to the top of the catcher, and a net is fixedly connected to the top of the connecting frame. A receiving frame is fixedly connected to both ends of the connecting frame, and a pin is fixedly connected to the bottom end of the receiving frame. Assembly blocks are fixedly connected to both ends of the catcher, and symmetrically distributed reinforcing blocks are fixedly connected to the upper end of the assembly blocks. Symmetrically distributed slots are provided at the inner end of the receiving frame, and a positioning rod is slidably connected to the inner end of the reinforcing blocks.

[0006] The capture effect of the device can be improved by installing pins and reinforcing blocks.

[0007] Furthermore, a locking block is fixedly connected to the front end of the positioning rod, and a reset ring is sleeved on the outer end of the positioning rod.

[0008] Installing a reset ring makes it easier to separate the positioning rod from the connected locking pin or the locking pin itself.

[0009] Furthermore, the inner end of the assembly block is provided with an adjustment groove, and the inner end of the adjustment groove is slidably connected to a guide block, which is fixedly connected to the outer end of the positioning rod.

[0010] By installing guide blocks, the guide blocks can move together with the adjustment of the positioning rod. The moving positioning rod and guide blocks slide at the inner end of the adjustment groove, making the positioning rod and guide blocks more stable and preventing them from falling off or shifting.

[0011] Furthermore, the inner end of the pin has symmetrically distributed slots.

[0012] By installing slots, the connecting frame and the catcher will not easily separate during use, thus improving the structural stability of the device.

[0013] Furthermore, a pair of weights are provided at the bottom of the catcher.

[0014] By installing weights, the catching device can be made more stable in the water, preventing it from tilting or drifting due to water flow, waves, or crab activity, thereby reducing the risk of inaccurate catching.

[0015] Furthermore, the two ends of the catcher are fixedly connected to a catching cage, and the outer end of the connecting frame is fixedly connected to symmetrically distributed connecting buckles.

[0016] The capture efficiency of this device can be further improved by installing a capture cage.

[0017] Furthermore, an airbag is installed at the lower end of the trap, and an air duct is fixedly connected to the outer end of the airbag.

[0018] By installing an airbag, the fishing effect can be avoided due to gravity imbalance.

[0019] Furthermore, an air bladder is fixedly connected to the other end of the air duct away from the first air bladder, and an inflation tube is fixedly connected to the outer end of the first air bladder.

[0020] By installing an inflation tube, external inflation equipment can be easily connected to the first airbag for inflation, improving the ease of use of both the first and second airbags.

[0021] In summary, this utility model has the following beneficial effects: 1. By incorporating a pin and reinforcing blocks, the overall structure of this device uses a non-mesh catcher at the bottom in conjunction with a mesh net at the top. This structure allows for a gentler capture of the crabs, minimizing damage to their shells and bodies, thus preserving their vitality and quality. The net at the top of the catcher effectively prevents the crabs from escaping, ensuring they are not lost during transportation or subsequent operations. When feeding the crabs, simply pull the sliding positioning rod inside the reinforcing block. This releases the locking block from the pin, and then the pin is removed from the inner end of the assembly block, allowing the net and connecting frame to easily separate from the catcher. This facilitates the removal of the captured crabs from the catcher, avoiding the tangling problem associated with traditional all-mesh structures. Furthermore, the convenient top cover design speeds up post-catch operations and device reuse, avoiding inconvenience caused by disassembly difficulties, thereby improving the overall efficiency of the aquaculture process. 2. By setting up traps, which use the structure commonly used for fish and shrimp, the traps are connected to the catcher. By connecting the two ends of the traps to the catcher, multiple crabs can be caught at the same time within a certain range, preventing crabs from lingering or escaping in one place, thereby improving the overall efficiency of the catch. The traps are usually mesh structures or closed devices with channels, which can effectively prevent crabs from escaping, further improving the catch efficiency of the device. 3. By setting up an airbag, the multiple inflatable structures can adjust the buoyancy of the catching device by inflating or deflating it when the device is in use, so that it can work adaptively in different water environments. With the design of the weight block, the combination of the weight block and inflation can help the catching device work more effectively in different water conditions and avoid the device from affecting the fishing effect due to gravity imbalance. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure in this embodiment; Figure 2 This is in this embodiment Figure 1 A magnified three-dimensional structural diagram of point A in the middle; Figure 3 This is a schematic diagram of the side cross-section of the receiving frame in this embodiment; Figure 4 This is in this embodiment Figure 3 A magnified structural diagram of the plane at point B in the middle; Figure 5 This is a schematic diagram of the two-dimensional structure of the airbag in this embodiment.

[0023] In the diagram, 1. catching device; 2. seepage hole; 3. weight block; 4. catching cage; 5. connecting frame; 6. net bag; 7. connecting buckle; 8. airbag one; 9. air duct; 10. airbag two; 11. inflation tube; 12. receiving frame; 13. pin; 14. assembly block; 15. slot; 16. reinforcing block; 17. slot; 18. positioning rod; 19. locking block; 20. reset ring; 21. adjusting groove; 22. guide block. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] 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.

[0026] Reference Figure 1-5 As shown, a preferred embodiment of the present invention provides a catching device for mitten crab farming, comprising a catcher 1, a seepage hole 2 at the outer end of the catcher 1, a connecting frame 5 movably connected to the top of the catcher 1, a net bag 6 fixedly connected to the top of the connecting frame 5, a receiving frame 12 fixedly connected to both ends of the connecting frame 5, a pin 13 fixedly connected to the bottom end of the receiving frame 12, an assembly block 14 fixedly connected to both ends of the catcher 1, a symmetrically distributed reinforcing block 16 fixedly connected to the upper end of the assembly block 14, a symmetrically distributed slot 17 at the inner end of the receiving frame 12, and a positioning rod 18 slidably connected to the inner end of the reinforcing block 16.

[0027] Reference Figure 2-4 As shown, the front end of the positioning rod 18 is further fixedly connected to a locking block 19, and the outer end of the positioning rod 18 is fitted with a reset ring 20.

[0028] Reference Figure 3-4 As shown, the inner end of the assembly block 14 is provided with an adjustment groove 21, and the inner end of the adjustment groove 21 is slidably connected to a guide block 22, which is fixedly connected to the outer end of the positioning rod 18.

[0029] Reference Figure 3-4 As shown, the inner end of the pin 13 is further provided with symmetrically distributed slots 15.

[0030] By installing the pin 13 and the reinforcing block 16, the overall structure of this device uses a non-mesh bottom catcher 1 in conjunction with a mesh top net 6. This structure can gently capture the crabs into the device, minimizing damage to their shells and bodies, thus preserving their vitality and quality. Furthermore, the net 6 at the top of the catcher 1 effectively prevents the crabs from escaping, ensuring that the caught crabs are not lost during transportation or subsequent operations. When feeding the crabs, simply pull the positioning rod 18, which is slidably connected inside the reinforcing block 16. The reset ring 20 adjusts simultaneously with the movement of the positioning rod 18. When the positioning rod 18 loses external force, the reset ring 20 allows the positioning rod 18 to reset. The guide block 22 moves along with the adjustment of the positioning rod 18. The moving positioning rod 18 and guide block 22 are in the adjustment groove 21. The inner end slides, allowing the positioning rod 18 and guide block 22 to adjust and make the locking block 19 more stable. The moving positioning rod 18 releases the locking block 19 from the positioning restriction of the pin 13, and then moves the pin 13 out from the inner end of the assembly block 14. In use, the slot 15 can engage with the locking block 19, so that the two ends of the pin 13 can form a positioning restriction, making the pin 13 more stable inside the assembly block 14. This prevents the connecting frame 5 from easily separating from the catcher 1 during use, allowing the net 6 and the connecting frame 5 to easily separate from the catcher 1. This makes it easier to remove the caught crabs inside the catcher 1, which is different from the problem of easy tangling when feeding the traditional full net structure. The convenient top cover design can speed up the operation after the catch and the reuse of the device, avoiding the inconvenience caused by the difficulty of disassembly.

[0031] Reference Figure 1 As shown, a pair of weights 3 are further provided at the bottom of the catcher 1.

[0032] Reference Figure 1 As shown, further, the two ends of the catcher 1 are fixedly connected to the catcher cage 4, and the outer end of the connecting frame 5 is fixedly connected to the connecting buckles 7 that are symmetrically distributed.

[0033] Reference Figure 1 and Figure 5 As shown, further, an airbag 8 is installed at the lower end of the catcher 1, and an air duct 9 is fixedly connected to the outer end of the airbag 8.

[0034] Reference Figure 5 As shown, further, the other end of the air duct 9 away from the airbag 8 is fixedly connected to the second airbag 10, and the outer end of the airbag 8 is fixedly connected to the inflation tube 11.

[0035] By installing the trap 4, which uses a common trap structure for fish and shrimp, and connecting the trap 4 to the catcher 1, multiple crabs can be caught simultaneously within a certain range. This prevents crabs from lingering or escaping in one place, thereby improving the overall efficiency of the catch. The trap 4 is usually a mesh structure or a closed device with channels, which can effectively prevent crabs from escaping. When the device is in use, the multiple inflatable structures can adjust the buoyancy of the catcher by inflating or deflating, allowing it to adapt to different water environments. With the design of the weight block 3, the combination of the weight block 3 and the inflatable structure can help the catcher work more effectively under different water conditions and avoid the catch effect being affected by the imbalance of gravity.

[0036] Specific implementation process: When using this device, first place the bait inside the device, and then place the entire device into the aquaculture area. During use, the multiple inflatable structures can adjust the buoyancy of the catching device by inflating or deflating, allowing it to adapt to different aquatic environments. With the design of the weight block 3, the combination of the weight block 3 and the inflation helps the catching device work more effectively under different aquatic conditions. The catching trap 4 uses the trap structure commonly used for fish and shrimp. Connecting the catching trap 4 to the catcher 1 allows multiple crabs to be caught simultaneously within a certain range, preventing crabs from lingering or escaping in one place.

[0037] The device uses a non-mesh catcher 1 at the bottom in conjunction with a mesh net 6 at the top. This structure gently captures the crabs without damaging their shells or bodies, preserving their vitality and quality. The net 6 at the top of the catcher 1 effectively prevents the crabs from escaping, ensuring they are not lost during transport or subsequent operations. After a certain period of capture, the device is removed, and the positioning rod 18, which is slidably connected inside the reinforcing block 16, is pulled. The positioning rod 18 releases the locking block 19 from the positioning restriction of the pin 13. Then, the pin 13 is removed from the inner end of the assembly block 14, allowing the net 6 and connecting frame 5 to easily separate from the catcher 1. This makes it easier to remove the captured crabs from the catcher 1, avoiding the problem of tangling during unloading with traditional all-mesh structures. The convenient top cover design also speeds up post-capture operations and device reuse, avoiding inconvenience caused by difficult disassembly, making the capture and unloading operations of this device more convenient.

[0038] 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 trapping device for mitten crab farming, characterized in that: The device includes a catcher (1), with a seepage hole (2) at the outer end of the catcher (1), a connecting frame (5) movably connected to the top of the catcher (1), a net bag (6) fixedly connected to the top of the connecting frame (5), a receiving frame (12) fixedly connected to both ends of the connecting frame (5), a pin (13) fixedly connected to the bottom end of the receiving frame (12), an assembly block (14) fixedly connected to both ends of the catcher (1), a symmetrically distributed reinforcing block (16) fixedly connected to the upper end of the assembly block (14), a symmetrically distributed slot (17) opened at the inner end of the receiving frame (12), and a positioning rod (18) slidably connected to the inner end of the reinforcing block (16).

2. The device according to claim 1, wherein the device is characterized in that: The front end of the positioning rod (18) is fixedly connected to a locking block (19), and the outer end of the positioning rod (18) is fitted with a reset ring (20).

3. The device according to claim 1, wherein the device is characterized in that: An adjustment groove (21) is provided at the inner end of the assembly block (14), and a guide block (22) is slidably connected to the inner end of the adjustment groove (21). The guide block (22) is fixedly connected to the outer end of the positioning rod (18).

4. The device according to claim 1, wherein the device is characterized in that: The inner end of the pin (13) is provided with symmetrically distributed slots (15).

5. The device according to claim 1, wherein the device is characterized in that: The bottom of the catcher (1) is provided with a pair of weights (3).

6. The device according to claim 5, wherein the device is characterized in that: The two ends of the catcher (1) are fixedly connected to the catch cage (4), and the outer end of the connecting frame (5) is fixedly connected to the connecting buckles (7) that are symmetrically distributed.

7. The device according to claim 6, characterized in that: The lower end of the trap (1) is equipped with an airbag (8), and the outer end of the airbag (8) is fixedly connected with an air duct (9).

8. The device according to claim 7, characterized in that: The air duct (9) is fixedly connected to the other end of the airbag (8) away from the first airbag (8), and the outer end of the first airbag (8) is fixedly connected to the inflation tube (11).

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