Rice field shrimp breeding and collecting device

Abstract

The utility model relates to the technical field of crayfish breeding and catching, in particular to a rice field shrimp breeding and collecting device which comprises a fixing frame, a plurality of fixing holes are evenly formed in the fixing frame, groove pipes are arranged on the fixing holes, one end of each groove pipe is open, and a filter plate is fixed to the bottom of each groove pipe. Connecting plates are symmetrically fixed to the two ends of the fixing frame, supporting shafts are arranged on the sides, close to an opening of the groove pipe, of the connecting plates, a connecting rod is further arranged above the fixing frame, the two ends of the connecting rod are connected with the supporting shafts through the fixing plates, and the supporting shafts penetrate through the tail ends of the fixing plates and are rotationally connected with the fixing plates. A hanging ring is further fixed to the connecting rod. When the device is used for catching the crayfishes, the tail end of the steel wire rope is on the bank of the rice field, the device is lifted through the steel wire rope without approaching, the crayfishes cannot be frightened to escape in advance, and when the device is lifted, the device opening faces upwards, so that the crayfishes are further prevented from jumping out of the groove pipe.

Description

Technical Field

[0001] This invention relates to the field of crayfish farming and harvesting technology, and in particular to a device for rice paddy crayfish farming and collection. Background Technology

[0002] In order to obtain better quality crayfish, farmers have gradually adopted the rice-crayfish co-culture model in recent years. This not only improves economic benefits, but also produces crayfish of better quality, which has been well received by consumers. In order to maximize the restoration of the natural growth environment of crayfish and crabs, and at the same time prevent crayfish and crabs from burrowing and escaping, artificial crayfish nests have been developed to provide habitat for crayfish and facilitate their centralized harvesting.

[0003] Patent application number CN202010910044.3 discloses a crayfish farming nest and a combined crayfish farming device having the same. The nest includes a base, an air exchange platform above the base, a nest frame connecting the base and the air exchange platform, and nest units installed on at least one side of the nest frame. The base, nest frame, and nest units are all placed in the farming water, while the air exchange platform is exposed outside the water. Each nest unit includes multiple nest bodies arranged side-by-side in both the horizontal and vertical directions with spacing between each pair. Each nest body includes a chamber and an entrance. The device consists of a passageway extending outward from the nest frame relative to the burrow chamber and connecting to the entrance. The passageway of the upper nest body extends outward from the nest frame by a shorter length than the passageway of the lower nest body. Handles are fixed on both sides of the upper end of the ventilation platform. When it is necessary to catch crayfish, the device is lifted out of the aquaculture water by lifting the handles. However, when lifting the handles, a person needs to approach the device. During this process, the crayfish are easily startled and escape before the farmer can get close to the device, reducing the catch rate of crayfish.

[0004] This invention was proposed in response to the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for rice paddy shrimp farming and collection.

[0006] This invention can be achieved through the following technical solutions:

[0007] This invention discloses a rice-shrimp farming and collection device, comprising a fixed frame with a plurality of fixed holes evenly arranged on the fixed frame, each fixed hole having a groove tube. One end of each groove tube is open, and a filter plate is fixed to the bottom of the groove tube. Connecting plates are symmetrically fixed at both ends of the fixed frame, and support shafts are provided on the connecting plates near the opening of the groove tube. A connecting rod is also provided above the fixed frame, with both ends of the connecting rod connected to the support shafts through the fixed plates. The support shafts pass through the ends of the fixed plates and are rotatably connected to the fixed plates. A lifting ring is also fixed on the connecting rod. After securing the lifting ring with a steel wire rope, the device is placed in the paddy field. The end of the steel wire rope is fixed to the paddy field bank away from the device. When catching crayfish, the device is lifted by the steel wire rope. When the device is lifted, the lifting ring is pulled inward. Since the distance from the end of the trough tube to the fixed frame is much greater than the distance from the opening of the trough tube to the fixed frame, and the support shaft is located on both sides of the opening, when the lifting ring is lifted by the steel wire rope, the fixed plate is rotatably connected to the support shaft, and the center of gravity of the device is on the side of the fixed frame closer to the end of the trough tube. When the device is lifted, the connecting plate rotates around the support shaft, so that the opening of the trough tube faces upward, allowing the device to be lifted. When catching crayfish, the end of the steel wire rope is on the paddy field bank. When lifting the device by the steel wire rope, it is not necessary to get close to the device, which will not cause the crayfish to be startled and escape prematurely. Furthermore, when the device is lifted, the opening of the device faces upward, further preventing the crayfish from jumping out of the trough tube.

[0008] Preferably, counterweights are fixed to the ends of the bottom row of grooved tubes. The counterweights further ensure that the center of gravity of the device is on the side of the fixed frame closer to the end of the grooved tube.

[0009] Preferably, multiple limiting blocks are also fixed above the fixed frame, and magnets that cooperate with the connecting rod are fixed on the limiting blocks. The connecting rod, made of metal, is attracted by the magnets so that it is positioned above the fixed frame before the crayfish are caught.

[0010] Preferably, the distance from the opening of the trough to the fixed frame gradually decreases from bottom to top. One end of the trough opening forms a stepped slope from bottom to top, making it easier for crayfish to climb.

[0011] Preferably, the grooved tube passes through and slidably connects to the fixing hole. Triangular positioning blocks are fixed to both sides of the grooved tube. Multiple positioning plates are evenly fixed to the upper and lower ends of the fixing frame. Each positioning plate has a through-hole. The upper and lower positioning plates of the fixing frame are connected by a screw. The screw passes through the fixing hole on the lower positioning plate of the fixing frame and exits through the fixing hole on the upper positioning plate. A nut is threadedly connected to the end of the screw. When fixing the grooved tube to the fixing frame, after the grooved tube passes through the fixing hole, the positioning block on the grooved tube abuts against one side of the fixing frame. The screw passes through the fixing hole on the lower positioning plate of the fixing frame and exits through the fixing hole on the upper positioning plate. The screw passes between adjacent grooved tubes, and after the screw presses against the positioning block, it fixes the grooved tube. After the grooved tube is fixed, a nut is fixed to the threaded end of the screw. Rotating the nut causes the bottom of the nut to press against the positioning plate, thus fixing the grooved tube. The screws fix each grooved tube, facilitating the replacement of damaged grooved tubes.

[0012] Compared with existing technologies, the present invention has the following advantages:

[0013] When using this device to catch crayfish, the end of the steel wire rope is on the bank of the rice paddy. When lifting the device with the steel wire rope, there is no need to get close to the device, which will not cause the crayfish to be startled and escape in advance. Furthermore, when lifting the device, the opening of the device faces upward, which further prevents the crayfish from jumping out of the tank tube. Attached Figure Description

[0014] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure from another angle of the present invention;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] In the diagram: 1. Fixed frame; 2. Fixed hole; 3. Groove tube; 4. Opening; 5. Filter plate; 6. Counterweight; 7. Connecting plate; 8. Support shaft; 9. Connecting rod; 10. Fixed plate; 11. Lifting ring; 12. Positioning plate; 13. Positioning hole; 14. Screw; 15. Nut; 16. Limiting block; 17. Magnet; 18. Positioning block; Detailed Implementation

[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0020] Example 1:

[0021] like Figures 1 to 3As shown, this embodiment discloses a rice-shrimp farming and collection device, including a fixed frame 1. The fixed frame 1 is evenly provided with a plurality of fixed holes 2. Each fixed hole 2 is provided with a trough tube 3. One end of the trough tube 3 is open 4. A filter plate 5 is fixed at the bottom of the trough tube 3. Connecting plates 7 are symmetrically fixed at both ends of the fixed frame 1. Support shafts 8 are provided on the side of the connecting plates 7 near the opening 4 of the trough tube 3. A connecting rod 9 is also provided above the fixed frame 1. Both ends of the connecting rod 9 are connected to the support shafts 8 through the fixed plates 10. The support shafts 8 pass through the end of the fixed plates 10 and are rotatably connected to the fixed plates 10. A lifting ring 11 is also fixed on the connecting rod 9. After securing the lifting ring 11 with a steel wire rope, the device is placed in the paddy field. The end of the steel wire rope is fixed to the paddy field bank away from the device. When catching crayfish, the device is lifted by the steel wire rope. When the device is lifted by the steel wire rope, the lifting ring 11 is subjected to force. Since the distance from the end of the trough tube 3 to the fixed frame 1 is much greater than the distance from the opening 4 of the trough tube 3 to the fixed frame 1, and the support shaft 8 is located on both sides of the opening 4, when the steel wire rope lifts the lifting ring 11, the fixed plate 10 is rotatably connected to the support shaft 8, and the center of gravity of the device is on the side of the fixed frame 1 near the end of the trough tube 3. When the device is lifted, the connecting plate 7 rotates around the support shaft 8, so that the opening 4 of the trough tube 3 faces upwards, and the device is lifted. When this device is catching crayfish, the end of the steel wire rope is on the paddy field bank. When the device is lifted by the steel wire rope, it is not necessary to get close to the device, so as not to cause the crayfish to be startled and escape in advance. Furthermore, when the device is lifted, the opening 4 of the device faces upwards, which further prevents the crayfish from jumping out of the trough tube 3.

[0022] The fixed frame 1 is also equipped with multiple limiting blocks 16, and each limiting block 16 is equipped with a magnet 17 that works with the connecting rod 9. The connecting rod 9 is positioned above the fixed frame 1 before the crayfish are caught by attracting the metal connecting rod 9 with the magnet 17.

[0023] The distance from the opening 4 of the trough tube 3 to the fixed frame 1 gradually decreases from bottom to top. One end of the opening 4 of the trough tube 3 forms a stepped slope from bottom to top, which makes it easier for crayfish to climb.

[0024] The groove tube 3 passes through the fixing hole 2 and is slidably connected to the fixing hole 2. Triangular positioning blocks 18 are fixed on both sides of the groove tube 3. Multiple positioning plates 12 are evenly fixed at the upper and lower ends of the fixing frame 1. Positioning holes 13 are provided on the positioning plates 12. The upper and lower positioning plates 12 of the fixing frame 1 are connected by a screw 14. The screw 14 passes through the fixing hole 2 on the lower positioning plate 12 of the fixing frame 1 and then passes out through the fixing hole 2 on the upper positioning plate 12. A nut 15 is also provided at the end of the screw 14 and is threadedly connected to the screw 14. When the slotted tube 3 is fixed to the fixed frame 1, after the slotted tube 3 passes through the fixed hole 2, the positioning block 18 on the slotted tube 3 abuts against one side of the fixed frame 1. The screw 14 passes through the fixed hole 2 on the positioning plate 12 below the fixed frame 1 and then through the fixed hole 2 on the positioning plate 12 above. The screw 14 passes between adjacent slotted tubes 3. After the screw 14 holds the positioning block 18, it fixes the slotted tube 3. After the slotted tube 3 is fixed, the nut 15 is fixed at the threaded end of the top of the screw 14. The nut 15 is rotated, and the bottom of the nut 15 is pressed against the positioning plate 12 to fix the slotted tube 3. Each slotted tube 3 is fixed by the screw 14, which makes it convenient to replace the damaged slotted tube 3.

[0025] Example 2:

[0026] This embodiment discloses a rice-shrimp farming and collection device. Based on the structure and principle of Embodiment 1, this embodiment has a counterweight 6 fixed to the end of each of the bottom row of trough pipes 3. The counterweight 6 further ensures that the center of gravity of the device is on the side of the fixed frame 1 near the end of the trough pipe 3.

[0027] The above are merely preferred embodiments of the present invention. It should be noted that, for those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be considered within the scope of protection of the present invention.

Claims

1. A rice paddy shrimp farming and collection device, characterized in that, The device includes a fixed frame with multiple evenly distributed fixing holes. Each fixing hole has a grooved tube with one end open. A filter plate is fixed to the bottom of the grooved tube. Connecting plates are symmetrically fixed at both ends of the fixed frame. Support shafts are provided on the connecting plates near the opening of the grooved tube. A connecting rod is also provided above the fixed frame. Both ends of the connecting rod are connected to the support shafts through the fixing plates. The support shafts pass through the ends of the fixing plates and are rotatably connected to the fixing plates. A lifting ring is also fixed on the connecting rod.

2. The rice-shrimp farming and collection device according to claim 1, characterized in that, The bottom row of grooves is equipped with counterweights at the ends.

3. The rice-shrimp farming and collection device according to claim 1, characterized in that, The distance from the opening of the groove to the fixed frame gradually decreases from bottom to top.

4. The rice-shrimp farming and collection device according to claim 1, characterized in that, The grooved tube passes through the fixing hole and is slidably connected to the fixing hole. Triangular positioning blocks are fixed on both sides of the grooved tube. Multiple positioning plates are also evenly fixed at the upper and lower ends of the fixing frame. Each positioning plate is provided with a positioning hole that penetrates the positioning plate. The upper and lower positioning plates of the fixing frame are connected by a screw. The screw passes through the fixing hole on the lower positioning plate of the fixing frame and then passes out through the fixing hole on the upper positioning plate. A nut that is threadedly connected to the screw is also provided at the end of the screw.

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