Trash fish prevention device for water inlet of rice field shrimp culture

Abstract

The utility model belongs to the technical field of rice field shrimp culture, and particularly relates to a trash fish preventing device for a rice field shrimp culture water inlet, which comprises a shell, a filter cartridge is detachably connected inside the shell, a fish inlet is fixedly connected to one side outside the filter cartridge, a partition plate is fixedly connected to one side outside the fish inlet, and first filter screens are arranged inside the partition plate at equal intervals. A scraping plate is fixedly connected to one side, close to the partition plate, outside the filter cartridge; the utility model provides a fish-preventing device at a water inlet for rice field shrimp culture, and solves the problems that in the prior art, an external river water source needs to be pumped into a rice field during rice field shrimp culture, but the external river water source contains more trash fishes and impurities, and in the prior art, the trash fishes and the impurities are easily pumped into the rice field along with water flow; the problems that trash fishes fight for feed with cultured shrimps, so that the feeding cost is increased, garbage impurities can reduce the culture water quality, the living environment of the cultured shrimps is affected, and the culture cost of culture personnel is increased are solved.

Description

Technical Field

[0001] The utility model belongs to the field of rice field shrimp farming, and specifically relates to a device for preventing miscellaneous fish at the water inlet of rice field shrimp farming. Background Art

[0002] Rice field shrimp farming is an agricultural method that combines rice and shrimp farming, also known as "shrimp-rice co-culture" or "rice field shrimp-crab symbiotic farming". This farming method utilizes the rice field ecosystem and realizes the efficient utilization of resources and increases the output value of farmland by simultaneously farming shrimp in the rice field.

[0003] When carrying out rice field shrimp farming, it is necessary to pump external river water sources into the rice field. However, the external river water sources contain more miscellaneous fish and impurities. In traditional technologies, it is easy to pump miscellaneous fish and impurities into the rice field along with the water flow. The miscellaneous fish will compete with the farmed shrimp for feed, resulting in an increase in feeding costs. The garbage and impurities will reduce the breeding water quality, affecting the living environment of the farmed shrimp, thus increasing the breeding costs of the breeders. Content of the Utility Model

[0004] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a device for preventing miscellaneous fish at the water inlet of rice field shrimp farming.

[0005] The technical solution of the utility model is as follows: A device for preventing miscellaneous fish at the water inlet of rice field shrimp farming includes a housing. A filter cylinder is detachably connected inside the housing. An inlet for fish is fixedly connected to one side of the outside of the filter cylinder. A partition is fixedly connected to the outside of the inlet for fish. A first filter screen is equidistantly arranged inside the partition. A scraper is fixedly connected to the side of the outside of the filter cylinder close to the partition. Water inlet holes are equidistantly opened inside the scraper. A second filter screen is equidistantly arranged inside the filter cylinder. A disassembly mechanism is arranged on the side of the outside of the filter cylinder far from the scraper.

[0006] As a preferred embodiment, the disassembly mechanism includes a fixed block and a clamping groove. The fixed block is fixedly connected to both sides of the outside of the filter cylinder. The clamping groove is opened on both sides of the inner wall of the housing. A clamping block that cooperates with the clamping groove is slidably connected inside the fixed block. The bottom of the clamping block extends into the filter cylinder and is fixedly connected to a sliding rod. The sliding rod is slidably connected inside the filter cylinder. A spring is arranged inside the fixed block and at the bottom of the clamping block. One side of the outside of the sliding rod extends to the outside of the filter cylinder and is fixedly connected to a connecting rod. A handle is fixedly connected to the outside of the connecting rod. The connecting rod is slidably connected to the inner wall of the filter cylinder.

[0007] As a preferred embodiment, water outlet holes are equidistantly opened on the outside of the housing. A rotary cover is arranged on the side of the outside of the housing far from the inlet for fish.

[0008] As a preferred embodiment, a water outlet pipe is detachably connected to one side of the outside of the housing, and clamping blocks are symmetrically and fixedly connected to one side of the outside of the housing close to the water outlet pipe, and bolts are symmetrically and threadedly connected between the two outer sides of the two clamping blocks.

[0009] As a preferred embodiment, the clamping block is made of elastic sheet material, and a sealing gasket is arranged at the joint between the inner wall of the housing and the water outlet pipe, and the sealing gasket is made of rubber material.

[0010] As a preferred embodiment, the screw cap is threadedly connected to the housing, a rotating handle is fixedly connected to one side of the outside of the screw cap, and a third filter screen is arranged inside the water outlet.

[0011] The beneficial effects of the present utility model are as follows:

[0012] The device can filter and collect small fish in the discharged water flow while filtering and purifying the water flow, which not only prevents small fish from following the water flow into the paddy field to compete with the cultured shrimps for feed, but also ensures the cleanliness of the cultured water quality, provides great convenience for the breeders and reduces the breeding cost. Description of the Drawings

[0013] The following further describes the present utility model with reference to the drawings.

[0014] Figure 1 is a perspective view of the present utility model;

[0015] Figure 2 is a cross-sectional view of the housing in the present utility model;

[0016] Figure 3 is a cross-sectional view of the filter cartridge in the present utility model;

[0017] Figure 4 is the Figure 3 enlarged view at A in the present utility model;

[0018] Figure 5 is the Figure 2 enlarged view at B in the present utility model.

[0019] In the figure: 1. housing; 2. filter cartridge; 3. fish inlet; 4. partition; 5. first filter screen; 6. scraper; 7. second filter screen; 8. fixing block; 9. clamping block; 10. clamping groove; 11. spring; 12. sliding rod; 13. handle; 14. water outlet; 15. screw cap; 16. water outlet pipe; 17. clamping block; 18. bolt. Detailed Embodiments

[0020] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please refer to Figures 1-5 Figures 1-5 , a device for preventing miscellaneous fish at the water inlet of rice field shrimp farming, comprising a housing 1, characterized in that a filter cylinder 2 is detachably connected inside the housing 1, a fish inlet 3 is fixedly connected to one side of the outside of the filter cylinder 2, a partition plate 4 is fixedly connected to one side of the outside of the fish inlet 3, a first filter screen 5 is equidistantly arranged inside the partition plate 4, a scraper 6 is fixedly connected to one side of the outside of the filter cylinder 2 close to the partition plate 4, water inlet holes are equidistantly formed inside the scraper 6, a second filter screen 7 is equidistantly arranged inside the filter cylinder 2, and a disassembly mechanism is arranged on one side of the outside of the filter cylinder 2 away from the scraper 6.

[0022] Specifically, the disassembly mechanism includes a fixed block 8 and a clamping groove 10. The fixed block 8 is fixedly connected to both sides of the outside of the filter cylinder 2, the clamping groove 10 is formed on both sides of the inner wall of the housing 1, a clamping block 9 matched with the clamping groove 10 is slidably connected inside the fixed block 8, the bottom of the clamping block 9 extends into the inside of the filter cylinder 2 and is fixedly connected with a sliding rod 12, the sliding rod 12 is slidably connected inside the filter cylinder 2, a spring 11 is arranged inside the fixed block 8 and at the bottom of the clamping block 9, one side of the outside of the sliding rod 12 extends to the outside of the filter cylinder 2 and is fixedly connected with a connecting rod, a handle 13 is fixedly connected to the outside of the connecting rod, and the connecting rod is slidably connected to the inner wall of the filter cylinder 2.

[0023] Through the above technical scheme, the device is first installed on the outside of the water outlet pipe 16. When water is discharged through the water outlet pipe 16, the water flows into the interior of the shell 1, and the miscellaneous fish in the water flow enter the interior of the filter cartridge 2 through the fish inlet 3, and then the water flows into the interior of the shell 1 through the first filter screen 5. The first filter screen 5 can prevent the miscellaneous fish from following the water flow into the interior of the shell 1. After the water flows into the interior of the shell 1, it flows out through the water outlet 14 inside the shell 1, and the third filter screen in the water outlet 14 can perform secondary filtration on impurities such as gravel and garbage in the water flow, which can effectively prevent impurities such as gravel and garbage from following the water flow into the rice field, thereby ensuring the quality of aquaculture water. When it is necessary to clean the miscellaneous fish and the first filter screen 5 and the second filter screen 7 in the filter cartridge 2, first open the rotary cover 15, and then press the handles 13 on both sides toward the middle with one hand, so that the two handles 13 drive the corresponding slides. The rod 12 slides inside the filter cartridge 2, and the slide rod 12 drives the corresponding block 9 to slide inside the fixed block 8 until the block 9 is out of the slot 10. At this time, the filter cartridge 2 can be disassembled by pulling it outward with the two handles 13. While pulling the filter cartridge 2 to move outward, the third filter screen inside the water outlet 14 can be scraped by the scraper 6 outside the filter cartridge 2, so as to clean the third filter screen, thereby improving the practicality of the device. After the cleaning of the miscellaneous fish and the first filter screen 5 and the second filter screen 7 is completed, the filter cartridge 2 can be reinstalled in the above manner. The device can filter and collect the miscellaneous fish in the outlet water flow while filtering and purifying the water flow, which not only prevents the miscellaneous fish from following the water flow into the rice field and competing with the farmed shrimp for feed, but also ensures the cleanliness of the aquaculture water quality, provides greater convenience for the aquaculture personnel and reduces the aquaculture cost.

[0024] Specifically, water outlets 14 are equidistantly provided on the outside of the shell 1 , and a screw cap 15 is provided on the side of the outside of the shell 1 away from the fish inlet 3 .

[0025] Through the above technical solution, the water outlet 14 is provided to facilitate the discharge of water.

[0026] Specifically, a water outlet pipe 16 is detachably connected to one side of the outer shell 1, a clamp block 17 is symmetrically fixedly connected to one side of the outer shell 1 near the water outlet pipe 16, and bolts 18 are symmetrically threadedly connected between the outer sides of the two clamp blocks 17.

[0027] Through the above technical solution, by putting the shell 1 on the outside of the water outlet pipe 16 and then tightening the bolts 18 on both sides, the device can be fastened to the outside of the water outlet pipe 16 to prevent loosening and falling off during use.

[0028] Specifically, the clamping block 17 is made of an elastic sheet material, and a sealing gasket is provided at the joint between the inner wall of the housing 1 and the water outlet pipe 16, and the sealing gasket is made of a rubber material.

[0029] Through the above technical solution, the provided sealing pad prevents water and miscellaneous fish from leaking out.

[0030] Specifically, the rotary cover 15 is threadedly connected to the housing 1 , a rotating handle is fixedly connected to an outer side of the rotary cover 15 , and a third filter is disposed inside the water outlet 14 .

[0031] Through the above technical solution, the screw cap 15 connected by thread can be quickly disassembled by rotating the handle, thereby improving practicality.

[0032] When in use, first install the device on the outside of the water outlet pipe 16. When water is discharged through the water outlet pipe 16, the water flows into the interior of the shell 1, and the miscellaneous fish in the water flow enters the interior of the filter cartridge 2 through the fish inlet 3, and then the water flows into the interior of the shell 1 through the first filter screen 5. The first filter screen 5 can prevent the miscellaneous fish from following the water flow into the interior of the shell 1. After the water flows into the interior of the shell 1, it flows out through the water outlet 14 inside the shell 1, and the third filter screen in the water outlet 14 can perform secondary filtering on impurities such as gravel and garbage in the water flow, which can effectively prevent impurities such as gravel and garbage from following the water flow into the rice field, thereby ensuring the quality of aquaculture water. When it is necessary to clean the miscellaneous fish and the first filter screen 5 and the second filter screen 7 in the filter cartridge 2, first open the rotary cover 15, and then press the handles 13 on both sides toward the middle with one hand, so that the two handles 13 drive the corresponding slide rods 12 to slide inside the filter cartridge 2, and the slide rods 12 then drive the The corresponding block 9 slides toward the inside of the fixed block 8 until the block 9 is out of the card slot 10. At this time, the filter cartridge 2 can be pulled outward by the two handles 13 to complete the disassembly. While pulling the filter cartridge 2 to move outward, the scraper 6 outside the filter cartridge 2 can scrape the third filter screen inside the water outlet 14, so as to clean the third filter screen, thereby improving the practicality of the device. After the cleaning of the debris and the first filter screen 5 and the second filter screen 7 is completed, the filter cartridge 2 can be reinstalled again in the above-mentioned manner. The water outlet 14 is provided to facilitate the discharge of water flow. By sleeved the shell 1 on the outside of the water outlet pipe 16 and then tightening the bolts 18 on both sides, the device can be fastened to the outside of the water outlet pipe 16 to prevent loosening and falling off during use. The provided sealing gasket prevents water flow and debris from leaking out. The screw cap 15 connected by a thread can be used in conjunction with the rotating handle for easy and quick disassembly, thereby improving practicality.

[0033] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present utility model.

[0035] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The protection scope claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A device for preventing miscellaneous fish from entering the water inlet of a paddy field shrimp farm, including a housing (1), characterized in that, A filter cartridge (2) is detachably connected inside the housing (1). One side of the outside of the filter cartridge (2) is fixedly connected with a fish inlet (3). One side of the outside of the fish inlet (3) is fixedly connected with a partition plate (4). A first filter screen (5) is equidistantly arranged inside the partition plate (4). One side of the outside of the filter cartridge (2) close to the partition plate (4) is fixedly connected with a scraper (6). Water inlet holes are equidistantly opened inside the scraper (6). A second filter screen (7) is equidistantly arranged inside the filter cartridge (2). A disassembly mechanism is arranged on one side of the outside of the filter cartridge (2) far from the scraper (6).

2. The anti-small-fish device for the water inlet of paddy field shrimp farming according to claim 1, characterized in that, The disassembly mechanism includes a fixed block (8) and a clamping groove (10). The fixed block (8) is fixedly connected to both sides of the outside of the filter cartridge (2). The clamping grooves (10) are opened on both sides of the inner wall of the housing (1). A clamping block (9) that is matched with the clamping groove (10) is slidably connected inside the fixed block (8). The bottom of the clamping block (9) extends into the inside of the filter cartridge (2) and is fixedly connected with a sliding rod (12). The sliding rod (12) is slidably connected inside the filter cartridge (2). A spring (11) is arranged inside the fixed block (8) and at the bottom of the clamping block (9). One side of the outside of the sliding rod (12) extends to the outside of the filter cartridge (2) and is fixedly connected with a connecting rod. A handle (13) is fixedly connected to the outside of the connecting rod. The connecting rod is slidably connected to the inner wall of the filter cartridge (2).

3. The anti-small-fish device for the water inlet of paddy field shrimp farming according to claim 2, characterized in that, Water outlet holes (14) are equidistantly opened on the outside of the housing (1). A rotary cover (15) is arranged on one side of the outside of the housing (1) far from the fish inlet (3).

4. The anti-small-fish device for the water inlet of rice field shrimp farming according to claim 3, characterized in that, A water outlet pipe (16) is detachably connected to one side of the outside of the housing (1). Clamping blocks (17) are symmetrically and fixedly connected to one side of the outside of the housing (1) close to the water outlet pipe (16). Bolts (18) are symmetrically and threadedly connected between both sides of the outside of the two clamping blocks (17).

5. The anti-small-fish device for the water inlet of rice field shrimp farming according to claim 4, characterized in that The clamping blocks (17) are made of elastic sheet materials. A sealing gasket is arranged at the joint between the inner wall of the housing (1) and the water outlet pipe (16). The sealing gasket is made of rubber materials.

6. The anti-small-fish device for the water inlet of rice field shrimp farming according to claim 5, wherein, The rotary cover (15) is threadedly connected to the housing (1). A rotating handle is fixedly connected to one side of the outside of the rotary cover (15). A third filter screen is arranged inside the water outlet hole (14).

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