Conveniently catch rice field shrimp habitat device

By adopting a first and second base plate design in the rice paddy shrimp habitat device, combined with an action mechanism, a stable connection and convenient disassembly/removal of the nest tube and hoop tube are achieved, solving the problem of unstable connection between the hoop tube and the nest tube, and improving the device's effectiveness and shrimp harvesting efficiency.

CN118044481BActive Publication Date: 2026-07-24ANHUI AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI AGRICULTURAL UNIVERSITY
Filing Date
2024-02-03
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing rice paddy shrimp habitat devices, the connection between the hoop tube and the nest tube is not stable enough, which affects the effectiveness of use.

Method used

The design employs a first and second base plate, combined with an action mechanism, to achieve locking and fixation between the nest tube and the clamp tube. The top opening is released by flipping the sealing plate, ensuring that the shrimp can smoothly enter the nest tube to inhabit.

Benefits of technology

It achieves a stable connection between the hoop tube and the nest tube, ensuring the effectiveness of the device, and is easy to assemble and disassemble, facilitating the harvesting of shrimp in rice paddies.

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Abstract

The application discloses a rice field shrimp habitat device convenient to catch, which comprises a first base plate, a second base plate and a moving mechanism, a plurality of nest tubes for rice field shrimp habitat are vertically arranged on the first base plate, the second base plate is parallelly arranged above the first base plate, a plurality of hoop tubes are vertically arranged on the second base plate, the bottom of each hoop tube is provided with a socket for inserting the top of the nest tube, the top of each hoop tube is movably provided with a sealing plate capable of sealing the top opening of the hoop tube, and the moving mechanism is arranged on the second base plate and is driven by the insertion action of the top of the nest tube in the socket at the bottom of the hoop tube, so that the locking and fixing between the nest tube and the corresponding hoop tube can be realized, and the sealing plate can be turned over and separated from the top opening of the hoop tube. The first base plate, the second base plate and the moving mechanism can realize the stable butt joint between the hoop tube and the nest tube, the disassembly and assembly are convenient, and the use effect of the rice field shrimp habitat device is ensured.
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Description

Technical Field

[0001] This invention relates to the field of rice paddy shrimp farming technology, and in particular to a convenient habitat device for catching rice paddy shrimp. Background Technology

[0002] Southern China has abundant water resources, so rice is the main grain crop. In order to increase agricultural income and make more rational use of resources, in addition to rice, various ecological aquacultures are often carried out in rice paddies, such as various aquatic products and crops. Among them, shrimp and crab farming in rice paddies is the most common. Since shrimp and crabs have higher farming value in their natural state, farmers often choose netless farming methods to maximize the restoration of the natural growth environment of shrimp and crabs. In order to prevent shrimp and crabs from burrowing and escaping, there are habitat and harvesting devices for shrimp and crabs.

[0003] The rice paddy shrimp habitat devices in related technologies have simple structures, and the hoop tubes and nest tubes are mostly directly fitted and fixed, resulting in unstable connections between the tubes and affecting the effectiveness of the rice paddy shrimp habitat devices. Summary of the Invention

[0004] To address the technical problems mentioned in the background section, the present invention provides a convenient habitat for shrimp in rice paddies.

[0005] The present invention is achieved by the following technical solution: a convenient rice paddy shrimp habitat device, comprising a first base plate, a second base plate, and an actuating mechanism. The first base plate has several nest tubes erected vertically for rice paddy shrimp to inhabit. The second base plate is arranged parallel above the first base plate, and several clamp tubes are erected vertically on the second base plate. The bottom of each clamp tube has an insertion port for inserting the top of the nest tube. A sealing plate is movably disposed at the top of each clamp tube to close its top opening. The actuating mechanism is disposed on the second base plate and is driven by the insertion of the top of the nest tube into the insertion port at the bottom of the clamp tube. This not only achieves locking and fixing between the nest tube and the corresponding clamp tube but also allows the sealing plate to flip and disengage from the top opening of the clamp tube.

[0006] As a further improvement to the above solution, a filter screen is provided at the bottom of the nest tube.

[0007] As a further improvement to the above solution, the sealing plate includes two fixed plates disposed opposite to each other on the top sides of the hoop tube. Each of the two fixed plates is rotatably provided with a baffle. When the nest tube is not inserted into the hoop tube, the two baffles are horizontally disposed inside the hoop tube to form the sealing plate.

[0008] As a further improvement to the above solution, the maximum flipping angle of the baffle is 180 degrees.

[0009] As a further improvement to the above solution, the actuating mechanism includes several sets of positioning rods fixed to the top of the first substrate. Two positioning rods in each set are symmetrically distributed about the corresponding nest tubes. The second substrate has a first positioning hole through which the positioning rods can be inserted. A first locking component is provided in the body of the second substrate. The first locking component can lock and fix the nest tube inserted into the clamp tube. A second locking component is provided on the clamp tube. The second locking component can lock and fix the first substrate and the second substrate.

[0010] As a further improvement to the above solution, the first locking component includes a movable locking block, which is slidably inserted into the body of the second base plate and can extend into the inside of the hoop tube. The second locking block has a pressure-bearing hole through which the positioning rod can pass. The wall of the pressure-bearing hole has a second slope that slides and squeezes to engage with the positioning rod after contact. The outer wall of the nest tube has a first slot that engages with the movable locking block.

[0011] As a further improvement to the above solution, the second substrate has an internal slot for inserting a movable card block, and the movable slot is perpendicularly connected to the first positioning hole.

[0012] As a further improvement to the above solution, a through groove is provided on the outer wall of the clamp tube for the movable locking block to pass through. One end of the through groove is connected to the movable groove, and the other end is connected to the inside of the clamp tube.

[0013] As a further improvement to the above solution, a spring is provided between the centrifugal end of the movable card block and the wall of the movable groove.

[0014] As a further improvement to the above solution, the second locking assembly includes two rollers disposed opposite to each other at the bottom of the inner wall of the hoop tube. Part of the roller body protrudes into the inner side of the hoop tube to contact and engage with the outer wall of the nest tube. A first sprocket is coaxially fixed on the roller, and a second sprocket is coaxially fixed on the rotating end of the baffle. The first sprocket and the second sprocket are connected by chain drive. A second positioning hole is provided on the baffle to engage with the positioning rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The present invention provides a convenient rice paddy shrimp habitat device. Through the first base plate, the second base plate, and the actuating mechanism, a stable connection between the hoop tube and the nest tube can be achieved, and the device is easy to assemble and disassemble, ensuring the effectiveness of the rice paddy shrimp habitat device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 for Figure 1 A partial cross-sectional view of the first and second substrates in an assembled state;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 for Figure 2 A partial cross-sectional view of the clamp tube on the second substrate in an unassembled state;

[0021] Figure 5 for Figure 2 A partial cross-sectional view of the nest tubes on the first substrate in an unassembled state.

[0022] Explanation of key symbols:

[0023] 1. First substrate; 2. Second substrate; 3. Nest tube; 4. Hoop tube; 5. Filter screen; 6. Positioning rod; 7. First positioning hole; 8. Movable groove; 9. Movable locking block; 10. First locking slot; 11. Pressure bearing hole; 12. Limiting plate; 13. Second locking block; 14. Second locking slot; 15. Roller; 16. First sprocket; 17. Fixing plate; 18. Second sprocket; 19. Baffle; 20. Second positioning hole; 21. Through groove; 22. First ramp; 23. Second ramp; 24. Spring. Detailed Implementation

[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Example 1

[0026] Please combine Figures 1 to 5 A convenient habitat for rice paddy shrimp includes a first base plate 1, a second base plate 2, and an actuating mechanism. Several nest tubes 3 for rice paddy shrimp to inhabit are erected on the first base plate 1. The second base plate 2 is arranged parallel above the first base plate 1 and has several clamp tubes 4 erected on it. The bottom of the clamp tube 4 has an insertion port (not shown) for the top of the nest tube 3 to be inserted. The top of the clamp tube 4 is movably provided with a sealing plate that can close its top opening. The actuating mechanism is located on the second base plate 2 and is driven by the insertion action of the top of the nest tube 3 into the insertion port at the bottom of the clamp tube 4. This not only locks the nest tube 3 and the corresponding clamp tube 4, but also allows the sealing plate to flip and disengage from the top opening of the clamp tube 4, releasing the closure of the top opening of the clamp tube 4, so that the rice paddy shrimp can easily enter the nest tube 3 from the clamp tube 4 to inhabit it.

[0027] A filter screen 5 is installed at the bottom of the nest tube 3 to maintain water flow between the inside of the nest tube 3 and the paddy field ditch.

[0028] The sealing plate includes two fixed plates 17 that are oppositely arranged on both sides of the top of the clamp tube 4. Each fixed plate 17 is rotatably equipped with a baffle 19. When the nest tube 3 is not inserted into the clamp tube 4, the two baffles 19 are horizontally arranged inside the clamp tube 4 to form a sealing plate, so as to close the opening at the top of the clamp tube 4.

[0029] The maximum flip angle of baffle 19 is 180 degrees.

[0030] The actuation mechanism includes several sets of positioning rods 6 fixed to the top of the first substrate 1. Two positioning rods 6 in each set are symmetrically distributed about the corresponding nest tube 3. The second substrate 2 has a first positioning hole 7 through which the positioning rods 6 can be inserted. The second substrate 2 has a first locking component inside the plate. The first locking component can lock and fix the nest tube 3 inserted into the clamp tube 4. The clamp tube 4 has a second locking component. The second locking component can lock and fix the first substrate 1 and the second substrate 2.

[0031] The first locking assembly includes a movable locking block 9, which is slidably inserted into the body of the second base plate 2 and can extend into the inside of the clamp tube 4. The second locking block 9 has a pressure-bearing hole 11 through which the positioning rod 6 can pass. The hole wall of the pressure-bearing hole 11 has a second slope 23 that slides and squeezes in contact with the positioning rod 6. The outer wall of the nest tube 3 has a first slot 10 that engages with the movable locking block 9.

[0032] When the top of the positioning rod 6 touches the second ramp 23, the movable locking block 9 can move toward the inside of the clamp tube 4 (spring stretching deformation) so that the movable locking block 9 can be locked into the first locking groove 10 on the outer wall of the nest tube 3, so as to achieve mutual fixation between the top of the nest tube 3 and the bottom of the clamp tube 4.

[0033] The top wall of the first slot 10 has a first ramp 22. The first ramp 22 provides sufficient clearance for the movable block 9 when it is necessary to separate the nest tube 3 and the clamp tube 4, so as to avoid interfering with the separation and movement between the clamp tube 4 and the nest tube 3.

[0034] The second substrate 2 has an internal movable slot 8 for inserting the movable card block 9, and the movable slot 8 is perpendicularly connected to the first positioning hole 7.

[0035] The outer wall of the clamp 4 is provided with a through groove 21 for the movable locking block 9 to pass through. One end of the through groove 21 is connected to the movable groove 8, and the other end is connected to the inside of the clamp 4.

[0036] A spring (not shown) is installed between the centrifugal end of the movable block 9 and the wall of the movable groove 8. When the spring is not deformed, the centripetal end of the movable block 9 is located inside the through groove 21.

[0037] The second locking assembly includes two rollers 15 disposed opposite to each other at the bottom of the inner wall of the hoop tube 4. Part of the roller 15 protrudes into the inner side of the hoop tube 4 to contact and engage with the outer wall of the nest tube 3. A first sprocket 16 is coaxially fixed on the roller 15, and a second sprocket 18 is coaxially fixed on the rotating end of the baffle 19. The first sprocket 16 and the second sprocket 18 are connected by a chain drive. A second positioning hole 20 is provided on the baffle 19 to engage with the positioning rod 6.

[0038] In this embodiment, the user moves the second substrate 2 toward the first substrate 1 along the positioning rod 6, so that the top of the nest tube 3 is inserted into the bottom of the clamp tube 4. This will first cause the outer wall of the nest tube 3 to contact the friction roller 15, causing the roller 15 to drive the first sprocket 16 to rotate, and the first chain 16 to drive the second chain 18 and the baffle 19 to rotate. As the nest tube 3 moves upward, the baffle 19 can be deflected outward by 180 degrees to a horizontal position, releasing the closed state of the top of the clamp tube 4, so that the rice paddy shrimp can enter the nest tube 3 to inhabit. The positioning rod 6 will pass through the first positioning hole 7. During this process, the positioning rod 6 will touch the second slope 23 of the movable block 9, forcing the movable block 9 to gradually lock into the first slot 10 of the nest tube 3, realizing the mutual fixation between the nest tube 3 and the clamp tube 4. After passing through the first positioning hole 7, the positioning rod 6 will lock into the second positioning hole 20 of the baffle 19 to realize the locking and fixation between the second substrate 2 and the first substrate 1.

[0039] The adjusted device is placed into the paddy field, and an appropriate number of shrimp larvae are released near the device. The shrimp larvae can choose to enter the nest tube 3 to inhabit. When the harvest season arrives, farmers can go to the area where the device is placed to harvest the paddy field shrimp in the nest tube 3.

[0040] Example 2

[0041] In this embodiment, two horizontal limiting plates 12 are arranged opposite each other on the inner side of the clamp tube 4. Two second locking blocks 13 are provided at the bottom of the two limiting plates 12. The top wall of the nest tube 3 is provided with a second locking groove 14 that engages with the second locking blocks 13. Through the engagement between the second locking blocks 13 and the second locking groove 14, the connection between the top of the nest tube 3 and the bottom of the clamp tube 4 can be made more stable.

[0042] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A convenient shrimp habitat device for rice paddies, characterized in that, The device includes a first base plate, a second base plate, and an actuating mechanism. The first base plate has several nest tubes erected on it for rice paddy shrimp to inhabit. The second base plate is arranged parallel above the first base plate and has several hoop tubes erected on it. The bottom of each hoop tube has an insertion port for inserting the top of the nest tube. The top of each hoop tube is movably provided with a sealing plate that can close its top opening. The actuating mechanism is disposed on the second base plate and is driven by the insertion action of the top of the nest tube into the insertion port at the bottom of the hoop tube. This not only enables the nest tube to be locked and fixed with the corresponding hoop tube, but also enables the sealing plate to flip and disengage from the top opening of the hoop tube. The sealing plate includes two fixed plates disposed opposite to each other on both sides of the top of the hoop tube. Each of the two fixed plates is rotatably provided with a baffle. When the nest tube is not inserted into the hoop tube, the two baffles are horizontally disposed inside the hoop tube to form the sealing plate. The actuation mechanism includes several sets of positioning rods fixed to the top of the first substrate. Two positioning rods in each set are symmetrically distributed about the corresponding nest tube. The second substrate has a first positioning hole through which the positioning rods can be inserted. A first locking component is provided in the body of the second substrate. The first locking component can lock and fix the nest tube inserted into the clamp tube. A second locking component is provided on the clamp tube. The second locking component can lock and fix the first substrate and the second substrate. The first locking component includes a movable locking block, which is slidably inserted into the body of the second base plate and can extend into the inside of the hoop tube. The movable locking block has a pressure-bearing hole through which a positioning rod can pass. The wall of the pressure-bearing hole has a second slope that slides and presses against the positioning rod after contact. The outer wall of the nest tube has a first slot that engages with the movable locking block. The second locking assembly includes two rollers disposed opposite to each other at the bottom of the inner wall of the hoop tube. Part of the roller body protrudes into the inner side of the hoop tube to contact and engage with the outer wall of the nest tube. A first sprocket is coaxially fixed on the roller, and a second sprocket is coaxially fixed on the rotating end of the baffle. The first sprocket and the second sprocket are connected by a chain drive. A second positioning hole is provided on the baffle to engage with the positioning rod. Two horizontal limiting plates are provided on the inner side of the hoop tube, and two second locking blocks are provided at the bottom of the two limiting plates. A second locking groove is provided on the top wall of the nest tube to engage with the second locking blocks.

2. The rice paddy shrimp habitat device for convenient harvesting as described in claim 1, characterized in that, A filter screen is installed at the bottom of the nest tube.

3. The rice paddy shrimp habitat device for convenient harvesting as described in claim 1, characterized in that, The maximum flip angle of the baffle is 180 degrees.

4. The rice paddy shrimp habitat device for convenient harvesting as described in claim 3, characterized in that, The second substrate has an internal slot for inserting a movable card block, and the movable slot is perpendicularly connected to the first positioning hole.

5. The rice paddy shrimp habitat device for convenient harvesting as described in claim 4, characterized in that, The outer wall of the clamp tube is provided with a through groove for the movable locking block to pass through. One end of the through groove is connected to the movable groove, and the other end is connected to the inside of the clamp tube.

6. The rice paddy shrimp habitat device for convenient harvesting as described in claim 4, characterized in that, A spring is provided between the centrifugal end of the movable card block and the wall of the movable groove.