A filter grid for the water inlet of a fish culture pond

Abstract

The utility model relates to the technical field of filter grid, concretely is a kind of breeding pond water inlet filter grid of fish escape prevention, including frame, the surface of the frame is fixedly installed with screw rod holder, by setting screw rod, cleaning rod, spring, pressing plate, cleaning brush, scraper, utilize the synergistic effect of these structures, when motor drives screw rod rotation, screw rod block drives cleaning rod along slide rod steady movement, ensure that cleaning process is stable and without deviation, spring pushes pressing plate and makes brush piece closely adhere filter plate surface, guarantee brush piece overall contact, avoid brush leak, shovel-shaped scraper located below brush piece, can shovel stubborn impurities attached on filter plate first, then brush piece is thoroughly cleaned to residual small dirt, form the cleaning process of first shovel after brush, both can efficiently remove the plug on filter plate, and can protect filter plate from excessive wear, ensure that filter plate keeps good permeability state for a long time, effectively prevent impurity blockage and fish escape.

Description

Technical Field

[0001] This utility model relates to the field of filter grid technology, and in particular to a filter grid for the inlet of aquaculture ponds to prevent fish from escaping. Background Technology

[0002] An inlet filter grid, a device used to intercept impurities and purify water flow, is widely used in water treatment systems, industrial cooling equipment, and agricultural irrigation. It primarily functions to block solid particles, prevent pipe blockage, protect downstream equipment, and improve water quality, effectively enhancing system stability and service life. Publication number CN219815444U discloses a grid filter assembly, relating to the field of filter grid technology. It includes a horizontal plate, a vertical plate, and a grid body. A cavity box is installed on one side of the vertical plate, and a contraction spring is installed on the inner wall of the cavity box. An adjusting plate is installed at one end of the contraction spring, and a push rod is installed on the top of the adjusting plate. A convex slider is installed in front of the push rod. This bar screen filter assembly, through the arrangement of the bar screen body, cavity box, contraction spring, adjusting plate, push rod, convex slider, connecting rod, positioning slider, limiting block, mating plate, and positioning block, achieves the effect of convenient bar screen installation and disassembly. The positioning block plays a role in positioning the installation, and the elastic force of the contraction spring facilitates the positioning block to limit the position of the bar screen body, thus facilitating the installation of the bar screen body, and conversely, facilitating the disassembly of the bar screen body, thereby improving practicality. This utility model, by setting up components such as the bar screen body, cavity box, and contraction spring, makes the bar screen filter assembly convenient for bar screen installation and disassembly. However, in fish farming scenarios, impurities such as uneaten feed, fish feces, and algae in the water can easily adhere to the surface of the filter plate, causing the filter plate to become clogged, affecting water flow efficiency, and fish may experience decreased vitality or even death due to lack of oxygen. It cannot effectively clean the surface of the filter plate, so improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0004] This utility model adopts the following technical solution: a filter screen for the inlet of a fishpond to prevent fish from escaping, comprising a frame, a screw bracket fixedly installed on the surface of the frame, a motor fixedly installed on the surface of the screw bracket, a screw fixedly installed at the output end of the motor, a slide rod bracket fixedly installed on the surface of the frame, a slide rod fixedly installed inside the slide rod bracket, a screw block threadedly connected to the surface of the screw, a cleaning rod fixedly installed on the surface of the screw block, a slide rod block fixedly installed on the surface of the cleaning rod, a sliding hole formed on the surface of the slide rod, a spring groove formed on the bottom surface of the cleaning rod, a spring fixedly installed on the surface of the spring groove, a pressure plate fixedly installed at the other end of the spring, a brush fixedly installed on the surface of the pressure plate by a brush screw, and a scraper fixedly installed on the lower surface of the cleaning rod.

[0005] Preferably, the screw and the slide rod are of the same length and symmetrically distributed on both sides of the frame, and the surface of the sliding hole and the surface of the slide rod are slidably connected. This design allows the cleaning rod to remain stable during movement, preventing tilting or jamming. The symmetrical distribution ensures even force distribution at both ends of the cleaning rod, guaranteeing a smooth and effective cleaning action. This, in turn, ensures a more reliable cleaning effect on the filter plate and reduces unnecessary impact on the filter plate caused by unstable operation of the cleaning components.

[0006] Preferably, the spring grooves are multiple and evenly distributed on the bottom surface of the cleaning rod, and the side of the pressure plate is slidably connected to the inner side of the cleaning rod through the extension and retraction of the spring. This allows the brush blades to always fit tightly against the filter plate surface. With the elasticity of the spring, it can flexibly adapt to any minor undulations or unevenness on the filter plate surface, ensuring that the brush blades do not miss any areas during cleaning. Simultaneously, the sliding connection between the pressure plate and the inner side of the cleaning rod provides stable guidance for the extension and retraction of the spring, preventing the brush blades from shifting under force, thereby improving the thoroughness and effectiveness of cleaning.

[0007] Preferably, the lengths of the brush, scraper, and frame are all the same, and the scraper has a shovel-shaped surface and is located directly below the brush. This design allows the brush and scraper to fully cover the length of the filter plate, ensuring thorough cleaning without any blind spots. The shovel-shaped scraper, positioned directly below the brush, can first remove stubborn impurities from the filter plate surface, followed by the brush cleaning away any remaining fine impurities. This combined approach creates a progressive cleaning process, significantly improving cleaning efficiency and ensuring the filter plate maintains good permeability at all times.

[0008] Preferably, a filter plate is fixedly mounted on the bottom surface of the frame using filter plate screws. A filter plate groove is formed on the surface of the filter plate, and a filter plate rubber ring is fixedly mounted on the surface of the filter plate groove. Similarly, a frame groove is formed on the bottom surface of the frame, and a frame rubber ring is fixedly mounted on the surface of the frame groove. Here, the filter plate screws achieve a stable connection between the filter plate and the frame, facilitating the disassembly and replacement of the filter plate. The cooperation between the filter plate groove and the filter plate rubber ring, and between the frame groove and the frame rubber ring, effectively enhances the sealing between the filter plate and the frame, preventing impurities carried by the water flow from leaking through gaps. It also avoids water leakage caused by installation gaps, ensuring the reliable function of the filter plate and further improving the effectiveness of preventing fish escape and intercepting impurities.

[0009] Preferably, the frame rubber groove is located directly above the filter plate rubber groove, and the surfaces of the frame rubber ring and the filter plate rubber ring are in close contact. This allows the frame rubber ring and the filter plate rubber ring to form a double-sealing structure. The tight fit between the two further enhances the sealing performance of the connection between the frame and the filter plate. This corresponding and close fit effectively prevents impurities in the water from seeping in through gaps, while also preventing fish in the aquaculture pond from escaping through the connection gaps. This makes the sealing effect more reliable and ensures the stable operation of the filter plate's overall escape prevention and filtration functions.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. In this utility model, by setting up a screw, cleaning rod, spring, pressure plate, cleaning brush, and scraper, the synergistic effect of these structures allows the screw to rotate when the motor drives it, and the screw block drives the cleaning rod to move smoothly along the slide bar, ensuring a stable and deviation-free cleaning process. The spring pushes the pressure plate to make the brush blades fit tightly against the surface of the filter plate, ensuring full contact of the brush blades and avoiding missed brushing. The shovel-shaped scraper located below the brush blades can first remove stubborn impurities attached to the filter plate, and then the brush blades thoroughly clean the remaining fine dirt, forming a cleaning process of first scraping and then brushing. This can not only efficiently remove the blockages on the filter plate, but also protect the filter plate from excessive wear, ensuring that the filter plate maintains a good permeability state for a long time, and effectively prevent impurities from clogging and fish from escaping.

[0012] 2. In this utility model, by setting up a filter plate, filter plate screws, filter plate rubber rings, and frame rubber rings, the filter plate, as the core filtration component, can effectively intercept impurities in the water while preventing farmed fish from escaping. The filter plate screws firmly connect the filter plate to the frame, ensuring that the filter plate is not easily loosened or displaced under the impact of water flow, facilitating later disassembly, maintenance, or replacement. The filter plate rubber rings and frame rubber rings fit together correspondingly, forming a double sealing structure. The elastic deformation of the rubber rings fills the connection gaps, preventing impurities from leaking through the gaps and preventing fish from escaping through the installation gaps, ensuring stable filtration effect of the filter plate, making the filtration and escape prevention functions more reliable, and meeting the long-term use needs of the aquaculture pond inlet. Attached Figure Description

[0013] Figure 1 A schematic diagram of a filter screen for the inlet of a fishpond to prevent fish from escaping is provided for this utility model.

[0014] Figure 2 This utility model provides a schematic diagram of the screw structure of a filter screen at the inlet of a fish farming pond to prevent fish from escaping.

[0015] Figure 3 A schematic diagram of the cleaning structure of a filter screen at the inlet of a fishpond to prevent fish from escaping is provided for this utility model.

[0016] Figure 4This utility model provides a schematic diagram of the brush plate structure of a filter screen at the inlet of a fish farming pond to prevent fish from escaping.

[0017] Figure 5 This utility model provides a schematic diagram of the filter plate connection of the filter grid at the inlet of a fish farming pond to prevent fish from escaping.

[0018] Legend:

[0019] 1. Frame; 2. Screw bracket; 3. Slide rod bracket; 4. Motor; 5. Screw; 6. Slide rod; 7. Screw block; 8. Cleaning rod; 9. Slide rod block; 10. Sliding hole; 11. Spring groove; 12. Spring; 13. Pressure plate; 14. Brush plate screw; 15. Brush plate; 16. Scraper; 17. Filter plate screw; 18. Filter plate; 19. Filter plate rubber groove; 20. Filter plate rubber ring; 21. Frame rubber groove; 22. Frame rubber ring. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1

[0023] Please see Figure 1-4This utility model provides a technical solution: a filter screen for the inlet of a fishpond to prevent fish from escaping, including a frame 1, which serves as the basic support structure for the entire filter screen, providing an installation carrier for other components, integrating all components into a whole, and ensuring the overall stability and structural strength of the filter screen. A screw bracket 2 is fixedly installed on the surface of the frame 1 for fixing and installing a screw 5, providing stable support for the screw 5, ensuring that the screw 5 can rotate stably under the drive of the motor 4, and avoiding the screw 5 from shaking due to unstable installation. The motor 4 is fixedly installed on the surface of the screw bracket 2 as a power source, providing driving force for the rotation of the screw 5. By driving the screw 5 to rotate, the subsequent cleaning components are moved, realizing the automatic cleaning of the filter plate 18. The output end of the motor 4 is fixedly installed with the screw 5, which rotates under the drive of the motor 4. Through the threaded connection with the screw block 7, the rotational motion of the motor 4 is converted into the linear motion of the screw block 7, thereby driving the cleaning rod 8 to move. The length of the screw 5 is the same as the length of the slide rod 6 and is symmetrically distributed on both sides of the frame 1. The surface of the sliding hole 10 and the surface of the slide rod 6 are slidably connected. Here, it is possible to The symmetrical structure ensures that the cleaning rod 8 remains stable during movement, preventing tilting or jamming. This ensures even force distribution at both ends of the cleaning rod 8, guaranteeing smooth and effective cleaning. This, in turn, guarantees a more reliable cleaning effect on the filter plate 18 and reduces unnecessary impact on the filter plate 18 caused by unstable operation of the cleaning components. A slide bar frame 3 is fixedly installed on the surface of the frame 1, and a slide bar 6 is fixedly installed inside the slide bar frame 3. A screw block 7 is threadedly connected to the surface of the screw rod 5, and the cleaning rod 8 is fixedly installed on the surface of the screw block 7. A sliding block 9 is fixedly installed on the surface of the cleaning rod 8. The surface of the sliding block 9 has sliding holes 10. A spring groove 11 is formed on the bottom surface of the cleaning rod 8. Multiple spring grooves 11 are evenly distributed on the bottom surface of the cleaning rod 8. The side of the pressure plate 13 can be slidably connected to the inner side of the cleaning rod 8 through the extension and retraction of the spring 12. This allows the brush plate 15 to always be tightly fitted to the surface of the filter plate 18. With the elasticity of the spring 12, it can flexibly adapt to any slight undulations or unevenness that may exist on the surface of the filter plate 18, ensuring that the brush plate 15 does not miss any areas during the cleaning process.Meanwhile, the sliding connection between the pressure plate 13 and the inner side of the cleaning rod 8 provides a stable guide for the extension and retraction of the spring 12, preventing the brush 15 from shifting under force, thereby improving the thoroughness and effectiveness of cleaning. The spring 12 is fixedly installed on the surface of the spring groove 11, and the pressure plate 13 is fixedly installed on the other end of the spring 12. The brush 15 is fixedly installed on the surface of the pressure plate 13 via the brush screw 14. A scraper 16 is fixedly installed on the lower surface of the cleaning rod 8. The lengths of the brush 15 and scraper 16 are the same as the length of the frame 1. The scraper 16 has a shovel-shaped surface and is located directly below the brush 15. This allows the brush 15 and scraper 16 to fully cover the length of the filter plate 18, ensuring thorough cleaning. The shovel-shaped scraper 16, located directly below the brush 15, can first remove stubborn impurities from the surface of the filter plate 18, followed by the brush 15 cleaning any remaining fine impurities. This progressive cleaning process significantly improves cleaning efficiency and ensures that the filter plate 18 always maintains good permeability.

[0024] Example 2

[0025] Please see Figure 5A filter plate 18 is fixedly installed on the bottom surface of frame 1 using filter plate screws 17. The screws secure the filter plate 18 to the bottom surface of frame 1, achieving a stable connection between the filter plate 18 and frame 1, preventing the filter plate 18 from loosening or shifting under water flow impact, and facilitating the disassembly and maintenance of the filter plate 18. A filter plate groove 19 is provided on the surface of the filter plate 18 to provide installation space for the filter plate rubber ring 20, positioning and fixing the rubber ring 20, ensuring accurate installation and preventing it from easily falling off. A filter plate rubber ring 20 is fixedly installed on the surface of the filter plate groove 19. It is installed inside the filter plate groove 19 and fits snugly against the frame rubber ring 22 to form a seal, enhancing the sealing performance of the connection between the filter plate 18 and the frame 1, preventing impurities and fish from passing through gaps. A frame rubber groove 21 is provided on the bottom surface of the frame 1 for fixing and installing the frame rubber ring 22, providing an installation position for the frame rubber ring 22, ensuring stable installation of the frame rubber ring 22, and performing its sealing function. The frame rubber ring 22 is fixedly installed on the surface of the frame rubber groove 21. Here, the filter plate... Screw 17 securely connects the filter plate 18 to the frame 1, facilitating the disassembly and replacement of the filter plate 18. The cooperation between the filter plate groove 19 and the filter plate rubber ring 20, and between the frame groove 21 and the frame rubber ring 22, effectively enhances the sealing between the filter plate 18 and the frame 1, preventing impurities carried by the water flow from leaking through the gaps. It also avoids water leakage caused by installation gaps, ensuring the reliable filtration function of the filter plate 18 and further improving the effect of preventing fish escape and intercepting impurities. The frame rubber groove 21 is located within the filter plate groove 19. At the top, the surface of the frame rubber ring 22 and the surface of the filter plate rubber ring 20 are in contact. Here, the frame rubber ring 22 and the filter plate rubber ring 20 form a double sealing structure. Through the tight contact between the two, the sealing performance of the connection between the frame 1 and the filter plate 18 is further enhanced. The corresponding and close-fitting arrangement can effectively prevent impurities in the water from seeping in through the gaps, and at the same time prevent fish in the aquaculture pond from escaping through the connection gaps, making the sealing effect more reliable and ensuring the stable operation of the overall anti-escape and filtration functions of the filter plate 18.

[0026] Working Principle: In fish farming scenarios, uneaten feed, fish feces, algae, and other impurities in the water easily adhere to the surface of the filter plate 18, causing blockage and affecting water flow efficiency. When effective cleaning of the filter plate 18 is required, the motor 4 is started. The motor 4 drives the screw 5 to rotate, and the screw 5 drives the cleaning rod 8 to move smoothly along the slide rod 6. During the movement of the cleaning rod 8, the scraper 16 first contacts the surface of the filter plate 18 to remove the attached impurities. Then, the brush 15 connected to the bottom of the cleaning rod 8 by the spring 12 and the pressure plate 13 fits tightly against the surface of the filter plate 18 under the elastic action of the spring 12, cleaning the impurities remaining after the scraper 16 has removed them. The pressure plate 13 provides stable guidance for the extension and retraction of the spring 12, ensuring thorough cleaning. After cleaning is completed, the motor 4 reverses and drives the cleaning rod 8 to reset, waiting for the next cleaning operation. Through the coordinated operation of this series of components, the filter plate 18 is kept clear, ensuring water flow efficiency.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A filter grid for the inlet of a fish farming tank to prevent fish from escaping, comprising a frame (1), characterised in that: A screw frame (2) is fixedly installed on the surface of the frame (1). A motor (4) is fixedly installed on the surface of the screw frame (2). A screw (5) is fixedly installed at the output end of the motor (4). A slide bar frame (3) is fixedly installed on the surface of the frame (1). A slide bar (6) is fixedly installed inside the slide bar frame (3). A screw block (7) is threadedly connected to the surface of the screw (5). A cleaning rod (8) is fixedly installed on the surface of the screw block (7). A slide bar block (9) is fixedly installed on the surface of the cleaning rod (8). A sliding hole (10) is opened on the surface of the slide bar block (9). A spring groove (11) is opened on the bottom surface of the cleaning rod (8). A spring (12) is fixedly installed on the surface of the spring groove (11). A pressure plate (13) is fixedly installed on the other end of the spring (12). A brush (15) is fixedly installed on the surface of the pressure plate (13) by a brush screw (14). A scraper (16) is fixedly installed on the lower surface of the cleaning rod (8).

2. The fish escape prevention filter screen for aquaculture ponds according to claim 1, characterized in that: The screw (5) and the slide rod (6) are of the same length and are symmetrically distributed on both sides of the frame (1). The surface of the sliding hole (10) and the surface of the slide rod (6) are slidably connected.

3. The fish escape prevention filter screen for aquaculture ponds according to claim 1, characterized in that: The spring grooves (11) are multiple and evenly distributed on the bottom surface of the cleaning rod (8), and the side of the pressure plate (13) can be slidably connected to the inner side of the cleaning rod (8) through the extension and retraction of the spring (12).

4. The fish escape prevention filter screen for aquaculture ponds according to claim 1, characterized in that: The length of the brush (15), the length of the scraper (16), and the length of the frame (1) are all the same. The scraper (16) has a shovel-shaped surface and is located directly below the brush (15).

5. The fish escape prevention filter screen for aquaculture ponds according to claim 1, characterized in that: The bottom surface of the frame (1) is fixedly installed with a filter plate (18) by a filter plate screw (17). A filter plate groove (19) is opened on the surface of the filter plate (18). A filter plate rubber ring (20) is fixedly installed on the surface of the filter plate groove (19). A frame groove (21) is opened on the bottom surface of the frame (1). A frame rubber ring (22) is fixedly installed on the surface of the frame groove (21).

6. The fish escape prevention filter screen for aquaculture ponds according to claim 5, characterized in that: The frame adhesive groove (21) is located directly above the filter plate adhesive groove (19), and the surface of the frame adhesive ring (22) and the surface of the filter plate adhesive ring (20) are in contact.

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