A fish trap for rice fields
By designing a lantern-shaped, retractable rice paddy fish trap, and utilizing an elastic frame and fishing net structure combined with a light-attracting insect device, the problems of inconvenient storage and inconsistent bait in existing rice paddy fish traps have been solved, achieving efficient and automated fishing that is adaptable to various aquatic environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU ZHITUO BIOTECH CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-06-23
Smart Images

Figure CN224386539U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fish trap technology, specifically a fish trap for rice paddies. Background Technology
[0002] As a composite agricultural production model, the paddy field ecosystem not only has the function of rice cultivation, but also can be combined with fish farming to achieve efficient resource utilization. In the process of paddy field fish farming, fish management is a key technical link. The design of the trapping device directly affects the fishing efficiency and ease of operation. Traditional paddy field fish traps mostly adopt fixed structures or simple nets, and catch fish by manually placing bait or setting up physical obstacles. The principle is based on the foraging instinct and activity habits of fish.
[0003] However, conventional fishing devices do not have folding and storage functions, take up a lot of space, and are not conducive to storage and transportation. At the same time, the bait gradually decreases or even disappears after the initial deployment, causing the trapping effect to drop significantly over time, making it difficult to continuously attract fish into the fishing area. Therefore, a rice paddy fish trap is needed to solve the existing shortcomings. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] The purpose of this invention is to overcome the shortcomings of existing fishing devices, such as fixed structure which makes them difficult to store and store, and the fact that the bait gradually diminishes after being thrown in, making it difficult to continuously attract fish to the fishing area.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] A rice paddy fish trap, comprising:
[0009] The hollow guide column has a base fixedly connected to its bottom;
[0010] The movable ring is movably sleeved on the guide post and can move up and down along its axis;
[0011] Several elastic frames are connected at both ends between the base and the movable ring, respectively;
[0012] The fishing net is placed between the elastic frames and together with the base and the movable ring, it forms a retractable cage-like fishing space.
[0013] The fish entrance is located at the bottom of the fishing space;
[0014] A limiting mechanism is used to lock the movable ring in the working position;
[0015] A light-attracting insect device is installed at the top of the guide column to attract mosquitoes and insects, which then fall into the fishing space as bait through the hollow guide column.
[0016] Furthermore, the fish inlet is funnel-shaped, with its smaller diameter end facing the interior of the fishing space, allowing the fish to enter in one direction.
[0017] Furthermore, the movable ring movably passes through a pair of guide bars, which are fixedly connected to the outside of the guide post to restrict the movement direction of the movable ring; a positioning ring is also fixedly connected to the guide post, which is located below the movable ring and is used to restrict the movable ring to the working position.
[0018] Furthermore, a limiting hole is provided at the bottom of the guide strip, and the limiting mechanism includes two limiting pins symmetrically arranged on the moving ring. The front end of the limiting pin is adapted to the limiting hole to lock the moving ring in the working position; a pull ring is fixedly connected to the tail end of the limiting pin.
[0019] Furthermore, a funnel is fixedly connected to the top of the guide column to accommodate the light-attracting insect device; the bottom of the guide column is constructed with several slots to allow mosquitoes to fall from the funnel opening, slide down the inside of the guide column, and slide out of the slots into the fishing space.
[0020] Furthermore, the light-based insect-attracting device includes:
[0021] A limiting bracket is fixedly connected inside the funnel;
[0022] The lamp post is movably positioned at the middle of the limiting bracket;
[0023] A protective cover is fixedly attached to the top of the lamp post and is used to cover the top opening of the funnel when the trap is not in use.
[0024] Furthermore, the limiting bracket includes:
[0025] The limiting ring has a pair of limiting blocks fixedly connected inside it;
[0026] The lamp post has a pair of L-shaped limiting grooves on its outer side. The limiting blocks are adapted to the limiting grooves respectively. When the lamp post moves upward, the limiting groove moves vertically relative to the limiting block. Then, the lamp post is rotated to make the limiting groove rotate so that the limiting block is engaged in the lateral part of the limiting groove, thereby controlling the exposed state of the lamp post.
[0027] At least one connecting rod is fixedly connected to the limiting ring, and the end away from the limiting ring is fixedly connected to the inside of the funnel.
[0028] 3. Beneficial Effects
[0029] Compared with existing technologies, the advantages of this utility model are:
[0030] I. This utility model adopts a lantern-style retractable structure design, which makes the fishing space have a large fishing volume when it is unfolded, and can be quickly retracted when the fish are collected, making it convenient to store and collect. This significantly improves the fishing efficiency and facilitates the centralized removal of fish.
[0031] II. By setting up a support structure that combines an elastic frame with a fishing net, this utility model enables the device to have good flexibility and adaptability, allowing it to work stably under different water depths and terrain conditions, while effectively preventing fish from escaping.
[0032] Third, by installing light-based insect-attracting devices on top and using mosquitoes as bait, combined with the foraging habits of fish, the trapping process is automated, eliminating the need for manual feeding, reducing labor intensity and increasing the success rate of trapping. Attached Figure Description
[0033] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0034] Figure 2 This is a schematic cross-sectional view of the present invention.
[0035] Figure 3 This is a schematic diagram of the guide post and limiting mechanism of this utility model;
[0036] Figure 4 This is a schematic diagram of the structure of the light-attracting insect device of this utility model.
[0037] In the diagram: 1. Guide post; 2. Base; 3. Moving ring; 4. Elastic frame; 5. Fishing net; 6. Fish entrance; 7. Light-attracting insect device; 701. Light post; 702. Protective cover; 703. Limiting ring; 704. Connecting rod; 705. Limiting block; 8. Guide strip; 9. Positioning ring; 10. Limiting hole; 11. Limiting pin; 12. Pull ring; 13. Funnel; 14. Through groove; 15. Limiting groove. Detailed Implementation
[0038] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0039] like Figure 1-4As shown, this utility model provides a technical solution: a rice paddy fish trap, mainly used to efficiently attract fish in aquatic environments such as rice paddies. The device has a lantern-shaped overall structure with a retractable fishing space. It combines light to attract insects and the foraging habits of fish to achieve automated trapping.
[0040] The trap mainly includes a hollow guide column 1, a base 2, a movable ring 3, an elastic frame 4, a fishing net 5, a fish inlet 6, a limiting mechanism, and a light-attracting insect device 7. The base 2 is fixedly connected to the bottom of the guide column 1 to support the entire device and maintain its stability in the water. The movable ring 3 is movably sleeved on the guide column 1 and can move up and down along its axis. Several elastic frames 4 (ten in this embodiment) are evenly distributed between the movable ring 3 and the base 2, with one end hinged to the movable ring 3 and the other end hinged to the base 2, forming a deformable support structure. The fishing net 5 covers the space between the elastic frames 4, forming a closed fishing space. The fish inlet 6 is located at the bottom of the base 2 and is funnel-shaped, making it easy for fish to enter but difficult for them to escape. The limiting mechanism is set on the guide column 1 to fix the position of the movable ring 3. The light-attracting insect device 7 is installed on the top of the guide column 1 to attract mosquitoes as bait.
[0041] like Figure 1 and Figure 3 As shown, the limiting mechanism is used to lock the moving ring 3 in the working position to ensure that the fishing space remains in the unfolded state. Specifically, the moving ring 3 moves through a pair of guide bars 8, which are fixedly connected to the outside of the guide post 1 to limit the movement direction of the moving ring 3. A positioning ring 9 is also fixedly connected to the guide post 1, located below the moving ring 3, to limit the moving ring 3 in the working position. A limiting hole 10 is opened at the bottom of the guide bar 8. The limiting mechanism includes two limiting pins 11 symmetrically arranged on the moving ring 3. The ends of the limiting pins 11 are automatically inserted into the limiting holes 10 under the action of the springs on them, thereby locking the moving ring 3. Conversely, the limiting pins 11 are pulled outward by the pull ring 12, thereby separating the ends of the limiting pins 11 from the limiting holes 10, so that the moving ring 3 can move upward.
[0042] In terms of material selection, the guide post 1 and base 2 are made of high-strength, corrosion-resistant PVC or aluminum alloy to adapt to the damp and muddy environment of paddy fields and extend their service life. The elastic frame 4 can be made of glass fiber or carbon fiber, which has good elasticity and fatigue resistance and can be repeatedly stretched and contracted without deformation. The fishing net 5 is recommended to be made of nylon or polyethylene. The mesh size is set according to the target fish species, generally 1 to 2 cm, to balance the fishing efficiency and bait drop. The moving ring 3 and the limiting mechanism should be made of stainless steel or engineering plastic, which has anti-rust and wear-resistant properties to ensure smooth sliding and locking even after long-term use.
[0043] like Figure 1 and Figure 4As shown in this application, the limiting bracket includes a limiting ring 703 and four connecting rods 704. A pair of limiting blocks 705 are fixedly connected inside the limiting ring 703. A pair of L-shaped limiting grooves 15 are constructed on the outside of the lamp post 701. The limiting blocks 705 are respectively adapted to the limiting grooves 15. When the lamp post 701 moves upward, the limiting grooves 15 move vertically relative to the limiting blocks 705. Then, the lamp post 701 is rotated to make the limiting grooves 15 rotate so that the limiting blocks 705 are engaged in the lateral part of the limiting grooves 15, thereby controlling the exposed state of the lamp post 701. The connecting rods 704 are all fixedly connected to the limiting ring 703, and the other end is fixedly connected to the inside of the funnel 13 to maintain the stability of the limiting bracket. In addition, when the lamp post 701 is completely stored in the funnel 13, the protective cover 702 covers the opening of the funnel 13 to facilitate the storage of the trapping device.
[0044] The lamp post 701 integrates an LED light source and a light control sensor module. The power supply module uses a rechargeable lithium battery and is installed at the bottom of the lamp post 701 or the top of the guide post 1. The LED light source emits ultraviolet light with a wavelength of 365–400 nanometers, which is highly attractive to mosquitoes. The light control sensor module is used to automatically turn on the LED light source when the ambient light is below a set threshold and automatically turn it off when the light recovers, enabling unattended operation around the clock. The lamp post 701 also has a charging port on its side, which can charge the lithium battery through an external power source. When the light is turned on, mosquitoes are attracted to the funnel 13 and fall into the guide post 1, finally sliding down through the slot 14 into the fishing space, continuously providing food for the rice paddy fish.
[0045] In terms of safety protection design, the flared edge of the fish entrance 6 is rounded to prevent fish from being injured during entry. The outer shell of the light-attracting insect device 7 should have a protection level to prevent birds or other animals from touching it and causing short circuits or damage. The device as a whole should have a certain ability to resist wind and waves to ensure stable operation in severe weather.
[0046] In use, place the device in the preset position in the paddy field, push the moving ring 3 downward to the working position, so that the elastic frame 4 opens and the fishing net 5 is spread to form a lantern-shaped fishing space. Then operate the limiting mechanism to lock the moving ring 3 in the working position, turn on the light insect-attracting device 7 at the top to attract mosquitoes and make them fall into the fishing space as bait through the guide column 1. At the same time, take advantage of the feeding habits of the fish to lure and catch them through the funnel-shaped fish inlet 6 at the bottom. When collecting the fish, release the limiting mechanism, pull the moving ring 3 upward, and the elastic frame 4 returns to its extended state, so that the fishing space contracts and the captured fish are concentrated at the bottom for easy removal.
[0047] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A rice paddy fish trap, characterized in that, include: A hollow guide column (1) has a base (2) fixedly connected to its bottom; The movable ring (3) is movably sleeved on the guide post (1) and can move up and down along its axis; Several elastic frames (4) are connected at both ends between the base (2) and the movable ring (3); Fishing net (5) is placed between the elastic frame (4) and together with the base (2) and the moving ring (3) it forms a retractable cage-like fishing space; Fish entrance (6) is located at the bottom of the fishing space; A limiting mechanism is used to lock the moving ring (3) in the working position; The light-attracting insect device (7) is set on the top of the guide column (1) to attract mosquitoes and insects and drop them into the fishing space as bait through the hollow guide column (1).
2. The rice paddy fish trap according to claim 1, characterized in that: The fish inlet (6) is funnel-shaped, with its smaller diameter end facing the interior of the fishing space, allowing the fish to enter in one direction.
3. The rice paddy fish trap according to claim 1, characterized in that: The moving ring (3) moves through a pair of guide bars (8), which are fixedly connected to the outside of the guide post (1) to restrict the moving direction of the moving ring (3); a positioning ring (9) is also fixedly connected to the guide post (1), which is located below the moving ring (3) and is used to restrict the moving ring (3) to the working position.
4. The rice paddy fish trap according to claim 3, characterized in that: The guide bar (8) has a limiting hole (10) at the bottom. The limiting mechanism includes two limiting pins (11) symmetrically arranged on the moving ring (3). The front end of the limiting pin (11) is adapted to the limiting hole (10) to lock the moving ring (3) in the working position. The tail end of the limiting pin (11) is fixedly connected to a pull ring (12).
5. The rice paddy fish trap according to claim 1, characterized in that: The top of the guide post (1) is fixedly connected to a funnel (13) for accommodating the light insect-attracting device (7); the bottom of the guide post (1) is constructed with several through slots (14) so that mosquitoes fall from the opening of the funnel (13), slide down along the inside of the guide post (1) and slide out of the through slots (14) into the fishing space.
6. The rice paddy fish trap according to claim 5, characterized in that: The light-based insect-attracting device (7) includes: A limiting bracket is fixedly connected inside the funnel (13); The lamp post (701) is movably positioned in the middle of the limiting bracket; A protective cover (702) is fixedly connected to the top of the lamp post (701) and is used to cover the top opening of the funnel (13) when the trap is not in use.
7. The rice paddy fish trap according to claim 6, characterized in that: The limiting bracket includes: A limiting ring (703) has a pair of limiting blocks (705) fixedly connected inside it; The lamp post (701) has a pair of L-shaped limiting grooves (15) on its outer side. The limiting blocks (705) are respectively adapted to the limiting grooves (15). When the lamp post (701) moves upward, the limiting grooves (15) move vertically relative to the limiting blocks (705). Then, the lamp post (701) is rotated to make the limiting grooves (15) rotate so that the limiting blocks (705) are engaged in the lateral part of the limiting grooves (15), thereby controlling the exposed state of the lamp post (701). At least one connecting rod (704) is fixedly connected to the limiting ring (703), and the end away from the limiting ring (703) is fixedly connected to the inside of the funnel (13).