A device to prevent fish from escaping in rice paddies

Abstract

This utility model discloses an escape prevention device for rice-fish farming, belonging to the field of agricultural aquaculture technology. It addresses the problems of fixed-height protective nets that cannot adapt to water level changes and the lack of sun protection mechanisms. The device includes a paddy field embankment with a fishpond inside. A protective plate corresponding to the fishpond is fixedly connected to the top of the embankment, and multiple protective nets are fixedly connected inside the protective plate. This utility model incorporates a floating barrier mechanism. The floating plate and the telescopic barrier work together to automatically raise or lower the barrier according to changes in the paddy field water level. When the water level rises, the floating plate raises the telescopic barrier to prevent fish from escaping. When the water level drops, the telescopic barrier lowers with the water level, always maintaining a suitable height, thus effectively preventing fish escape due to water level fluctuations. Simultaneously, the automated design of the floating barrier mechanism reduces reliance on manual labor, saving labor and time costs.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural aquaculture technology, specifically relating to a device for preventing fish from escaping from rice paddies. Background Technology

[0002] Rice-fish farming is an ecological agricultural model that uses rice paddy waters to raise fish. This not only improves land utilization but also helps control pests and loosen the soil through fish activity. Furthermore, fish excrement can serve as natural fertilizer for the rice paddies, creating a virtuous cycle. Escape prevention devices are an important part of this model, serving the dual purpose of preventing fish from escaping and preventing predators from entering the farming area.

[0003] A prior art patent, CN211721518U, describes a device for preventing fish escape in rice paddies. This patent includes multiple posts fixedly installed around the rice paddy embankments. A Dutch net is fixedly connected to each post, forming a protective net enclosing the rice paddy. The lower part of the protective net is covered with a nylon net, the bottom of which is connected to the rice paddy embankments. This device, by covering the lower part of the protective net with nylon netting and connecting the lower part of the nylon netting to the rice paddy embankments, can prevent small predators from entering the rice paddy, reducing the harm to the fish. Simultaneously, it prevents water from entering the paddy. Once the water level is higher than the paddy field embankment, it can prevent fish from escaping without affecting the water flow. However, in actual use, there are still the following shortcomings: From a practical point of view, the height of the protective net of this device is fixed. The water level in the paddy field usually changes due to factors such as season, rainfall or irrigation. Especially after floods or heavy rainfall, the water level will rise significantly. If the height of the protective net is fixed, it cannot be adjusted according to the changes in water level. This will allow fish to escape through higher water levels when the water level rises. At the same time, the device lacks a sun protection mechanism. When the sunlight is too strong, the water temperature will rise, which may lead to water quality deterioration and health problems such as fish lack of oxygen.

[0004] Therefore, there is a need for a rice-fish farming escape prevention device to solve the problems of existing technologies where the protective net is fixed in height and cannot adapt to water level changes and lacks sun protection mechanisms. Utility Model Content

[0005] The purpose of this invention is to provide a device to prevent fish from escaping in rice paddies, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rice paddy fish farming escape prevention device, including a paddy ridge, a breeding pond set inside the paddy ridge, a protective plate corresponding to the breeding pond fixedly connected to the top of the paddy ridge, multiple protective nets fixedly connected inside the protective plate, a door panel rotatably installed at the front end of the protective plate, a floating blocking mechanism set at the top of the protective plate, and a sun protection mechanism set at the top of the paddy ridge.

[0007] It should be noted in the solution that the floating barrier mechanism includes multiple hollow vertical slots fixedly connected to the top of the protective plate. The inner side and inner end of the multiple hollow vertical slots are provided with openings. The inner wall of the multiple hollow vertical slots is slidably connected with floating plates. The inner side and inner end of the multiple floating plates are fixedly connected with connecting strips. The bottom of the multiple connecting strips is fixedly connected with telescopic barrier nets.

[0008] It is worth noting that all of the aforementioned connecting strips are fixedly connected to the float plate through the opening.

[0009] It should be further noted that the bottom of each of the telescopic barriers is fixedly connected to the top of the protective plate.

[0010] In a preferred embodiment, the sun protection mechanism includes multiple support columns fixedly connected to the top of the field ridge. A top frame is fixedly connected to the top of each support column. A bidirectional threaded rod is rotatably connected to the inner walls of the front and rear ends of the top frame. A guide rod is fixedly connected to the inner walls of the front and rear ends of the top frame. Two ball bearing nut seats are rotatably connected to the outer walls of the bidirectional threaded rods. Two guide sleeves are slidably connected to the outer walls of the guide rods. A connecting plate is fixedly connected to the top of each ball bearing nut seat and the top of each guide sleeve. Telescopic sunshade curtains corresponding to the connecting plates are fixedly connected to the inner walls of the front and rear ends of the top frame. A servo motor is fixedly connected to the rear end of the top frame.

[0011] In a preferred embodiment, the inner ends of the two telescopic blackout curtains are respectively fixedly connected to corresponding connecting plates.

[0012] In one preferred embodiment, the output end of the servo motor passes through the rear end of the top frame and is fixedly connected to the bidirectional threaded rod.

[0013] Compared with the prior art, the rice-fish farming escape prevention device provided by this utility model has at least the following beneficial effects:

[0014] (1) By setting up a floating barrier mechanism, the float and the telescopic barrier work together to enable the telescopic barrier to automatically rise or fall with the changes in the field water level. When the water level rises, the float drives the telescopic barrier to rise, preventing fish from escaping due to the rising water level. When the water level falls, the telescopic barrier will fall with the water level, always maintaining a suitable height, thus effectively avoiding fish from escaping due to water level fluctuations. At the same time, the automated design of the floating barrier mechanism reduces the dependence on manual labor, saving labor and time costs.

[0015] (2) By setting up a sun protection mechanism, when the sunlight is too strong, the servo motor is turned on to drive the bidirectional threaded rod to rotate. With the cooperation of the ball nut seat and the guide sleeve, the two connecting plates drive the two telescopic light-blocking curtains to move, thereby adjusting the position of the telescopic light-blocking curtains, effectively blocking strong sunlight, reducing direct sunlight into the breeding pond, avoiding the fish from being affected by excessive sun exposure, and protecting the breeding environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial exploded view of the present invention;

[0018] Figure 3 This is a schematic diagram of the floating barrier mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the sun protection mechanism of this utility model.

[0020] In the diagram: 1. Field ridge; 2. Aquaculture pond; 3. Protective board; 4. Protective net; 5. Door panel; 6. Floating barrier mechanism; 601. Hollow vertical groove; 602. Through opening; 603. Floating plate; 604. Connecting strip; 605. Telescopic barrier net; 7. Sun protection mechanism; 701. Support column; 702. Top frame; 703. Two-way threaded rod; 704. Guide rod; 705. Ball bearing nut seat; 706. Guide sleeve; 707. Connecting plate; 708. Telescopic sunshade curtain; 709. Servo motor. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments.

[0022] Please see Figure 1-4 This utility model provides a device to prevent fish from escaping in rice paddies, including a paddy field ridge 1, a breeding pond 2 inside the paddy field ridge 1, a protective plate 3 corresponding to the breeding pond 2 fixedly connected to the top of the paddy field ridge 1, multiple protective nets 4 fixedly connected inside the protective plate 3, a door panel 5 rotatably installed at the front end of the protective plate 3, a floating blocking mechanism 6 set at the top of the protective plate 3, and a sun protection mechanism 7 set at the top of the paddy field ridge 1.

[0023] Further as Figure 3As shown, it is worth noting that the floating barrier mechanism 6 includes multiple hollow vertical grooves 601 fixedly connected to the top of the protective plate 3. Each hollow vertical groove 601 has an opening 602 on its inner side and inner end. Each hollow vertical groove 601 has a floating plate 603 slidably connected to its inner wall. Each floating plate 603 has a connecting strip 604 fixedly connected to its inner side and inner end. Each connecting strip 604 has a telescopic barrier net 605 fixedly connected to its bottom. By setting up the floating barrier mechanism 6, the floating plate 603 and the telescopic barrier net 605 cooperate to allow the telescopic barrier net 605 to automatically rise or fall with changes in the field water level. When the water level rises, the floating plate 603 raises the telescopic barrier net 605, preventing fish from escaping due to the rising water level. When the water level falls, the telescopic barrier net 605 falls with the water level, always maintaining a suitable height, thus effectively preventing fish from escaping due to water level fluctuations. At the same time, the automated design of the floating barrier mechanism 6 reduces reliance on manual labor, saving labor and time costs.

[0024] Further as Figure 3 As shown, it is worth noting that multiple connecting strips 604 are fixedly connected to the float plate 603 through the opening 602, which ensures that the float plate 603 remains stable during use and can withstand water flow and external pressure, preventing the float plate 603 from shifting or displacing, thereby improving the stability and service life of the overall structure. This design allows the float plate 603 and the connecting strips 604 to move together, thus simplifying the operation of the adjustment mechanism. The through structure of the connecting strips 604 facilitates the adjustment and maintenance of the float plate 603 and other components, reducing complex disassembly work.

[0025] Further as Figure 3 As shown, it is worth noting that the bottoms of multiple telescopic barriers 605 are all fixedly connected to the top of the protective plate 3, ensuring that the telescopic barriers 605 remain stable during use and will not shift or loosen due to external forces or water flow impacts. This structure improves the overall durability of the device, enabling it to withstand the pressure and impact from inside and outside the pool for extended periods.

[0026] As can be seen from the above working process, by setting up the floating barrier mechanism 6, the float 603 and the telescopic barrier net 605 work together to enable the telescopic barrier net 605 to automatically rise or fall with the changes in the field water level. When the water level rises, the float 603 drives the telescopic barrier net 605 to rise, preventing fish from escaping due to the rising water level. When the water level falls, the telescopic barrier net 605 will fall with the water level, always maintaining a suitable height, thus effectively avoiding fish escaping due to water level fluctuations. At the same time, the automated design of the floating barrier mechanism 6 reduces the dependence on manual labor, saving labor and time costs.

[0027] Further as Figure 4As shown, it is worth noting that the sun protection mechanism 7 includes multiple support columns 701 fixedly connected to the top of the field ridge 1. A top frame 702 is fixedly connected to the top of each support column 701. A bidirectional threaded rod 703 is rotatably connected to the inner walls of the front and rear ends of the top frame 702. A guide rod 704 is fixedly connected to the inner walls of the front and rear ends of the top frame 702. Two ball bearing nut seats 705 are rotatably connected to the outer wall of the bidirectional threaded rod 703. Two guide sleeves 706 are slidably connected to the outer wall of the guide rod 704. The tops of the corresponding ball bearing nut seats 705 and guide sleeves 706 are... Each part is fixedly connected to a connecting plate 707. The inner walls of the front and rear ends of the top frame 702 are fixedly connected to telescopic light-blocking curtains 708 corresponding to the connecting plates 707. A servo motor 709 is fixedly connected to the rear end of the top frame 702. By setting up a sun protection mechanism 7, when the sunlight is too strong, the two connecting plates 707 drive the two telescopic light-blocking curtains 708 to move, thereby adjusting the position of the telescopic light-blocking curtains 708, effectively blocking strong sunlight, reducing direct sunlight into the aquaculture pond 2, avoiding the fish from being affected by excessive sun exposure, and protecting the aquaculture environment.

[0028] Further as Figure 4 As shown, it is worth noting that the inner ends of the two telescopic blackout curtains 708 are fixedly connected to the corresponding connecting plates 707, ensuring that the telescopic blackout curtains 708 can move with the connecting plates 707, thereby adjusting the size of the blackout area.

[0029] Further as Figure 4 As shown, it is worth noting that the output end of the servo motor 709 passes through the rear end of the top frame 702 and is fixedly connected to the bidirectional threaded rod 703, ensuring that the servo motor 709 can drive the bidirectional threaded rod 703 to rotate, thereby providing driving force for the connecting plate 707 to move the telescopic blackout curtain 708.

[0030] This solution has the following working process: In actual use, when the water level rises, the float 603 drives the telescopic barrier 605 to rise, preventing fish from escaping due to the rising water level. When the water level drops, the telescopic barrier 605 will drop with the water level, always maintaining a suitable height. When the sunlight is too strong, the servo motor 709 is turned on to drive the bidirectional threaded rod 703 to rotate. With the cooperation of the ball nut seat 705 and the guide sleeve 706, the two connecting plates 707 drive the two telescopic light-blocking curtains 708 to move, thereby adjusting the position of the telescopic light-blocking curtains 708 and effectively blocking the strong sunlight.

[0031] In summary: By setting up the floating barrier mechanism 6, the float 603 and the telescopic barrier 605 work together to allow the telescopic barrier 605 to automatically rise or fall with changes in the field water level. When the water level rises, the float 603 raises the telescopic barrier 605 to prevent fish from escaping due to the rising water level. When the water level falls, the telescopic barrier 605 falls with the water level, always maintaining a suitable height, thus effectively preventing fish from escaping due to water level fluctuations. At the same time, the automated design of the floating barrier mechanism 6 reduces reliance on manual labor, saving labor and time costs. By setting up the sun protection mechanism 7, when the sunlight is too strong, the two connecting plates 707 move the two telescopic sunshade curtains 708 to adjust the position of the telescopic sunshade curtains 708, effectively blocking strong sunlight and reducing direct sunlight into the aquaculture pond 2, preventing fish from being affected by excessive sun exposure and protecting the aquaculture environment.

[0032] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

Claims

1. A fish farming and escape prevention device for rice fields, comprising a dike (1), characterized in that: The field ridge (1) is equipped with a breeding pond (2). The top of the field ridge (1) is fixedly connected with a protective plate (3) corresponding to the breeding pond (2). Multiple protective nets (4) are fixedly connected inside the protective plate (3). A door panel (5) is rotatably installed at the front end of the protective plate (3). A floating barrier mechanism (6) is provided on the top of the protective plate (3). A sun protection mechanism (7) is provided on the top of the field ridge (1).

2. The fish -paddy field preventing escape device according to claim 1, characterized in that: The floating barrier mechanism (6) includes multiple hollow vertical grooves (601) fixedly connected to the top of the protective plate (3). The inner side and inner end of the multiple hollow vertical grooves (601) are provided with openings (602). The inner walls of the multiple hollow vertical grooves (601) are slidably connected with floating plates (603). The inner side and inner end of the multiple floating plates (603) are fixedly connected with connecting strips (604). The bottom of the multiple connecting strips (604) is fixedly connected with telescopic barrier nets (605).

3. The fish -rice farming anti -escape device according to claim 2, characterized in that: All of the connecting strips (604) are fixedly connected to the float plate (603) through the through-hole (602).

4. The fish -paddy field preventing escape device according to claim 2, characterized in that: The bottom of each of the telescopic barriers (605) is fixedly connected to the top of the protective plate (3).

5. The rice-fish farming escape prevention device according to claim 1, characterized in that: The sun protection mechanism (7) includes multiple support columns (701) fixedly connected to the top of the field ridge (1). A top frame (702) is fixedly connected to the top of the multiple support columns (701). A bidirectional threaded rod (703) is rotatably connected to the inner wall of the front and rear ends of the top frame (702). A guide rod (704) is fixedly connected to the inner wall of the front and rear ends of the top frame (702). Two ball nut seats (705) are rotatably connected to the outer wall of the bidirectional threaded rod (703). Two guide sleeves (706) are slidably connected to the outer wall of the guide rod (704). A connecting plate (707) is fixedly connected to the top of the corresponding ball nut seat (705) and the top of the guide sleeve (706). A telescopic sunshade curtain (708) corresponding to the connecting plate (707) is fixedly connected to the inner wall of the front and rear ends of the top frame (702). A servo motor (709) is fixedly connected to the rear end of the top frame (702).

6. The fish -paddy field preventing escape device according to claim 5, characterized in that: The inner ends of the two telescopic blackout curtains (708) are respectively fixedly connected to the corresponding connecting plates (707).

7. The fish -paddy field preventing escape device according to claim 5, characterized in that: The output end of the servo motor (709) passes through the rear end of the top frame (702) and is fixedly connected to the bidirectional threaded rod (703).

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