Bottom sewage discharging device for fry industrial aquaculture
By designing a fish fry factory farming bottom sludge removal device that combines scrapers and negative pressure adsorption, the problem of difficult-to-remove pollutants from the bottom of the pond has been solved, achieving efficient and automated cleaning, and ensuring the healthy growth of fish fry and stable water quality.
Patent Information
- Application Number
- CN202423153185.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-20
AI Technical Summary
During factory-style fish fry farming, pollutants at the bottom of the pond are difficult to completely remove, leading to an increase in the concentration of harmful substances in the water and affecting the health of the fish fry.
A bottom sludge removal device for fish fry factory farming was designed, which combines scraper and negative pressure adsorption technology. The scraper scrapes the pollutants at the bottom of the pond and discharges them through the negative pressure pipe. The cleaning components are driven by a fixed roller, connecting ring, scraper, rotating roller and electric motor to achieve automated cleaning.
It significantly improves the efficiency of cleaning pollutants at the bottom of the pond, maintains water quality, reduces maintenance costs, is suitable for the needs of large-scale factory-style fish fry farming, and ensures the healthy growth of fish fry.
Smart Images

Figure CN223528735U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of environmental protection technology, specifically a bottom sludge discharge device for fish fry factory farming. Background Technology
[0002] In factory-style fish fry farming, the density of fish fry is relatively high. As the fry grow and metabolize, feed residue, feces, and other organic matter continuously accumulate at the bottom of the rearing pond. If these pollutants are not removed in time, their decomposition will consume oxygen in the water, producing harmful substances such as ammonia nitrogen and nitrite, which pose a serious threat to the growth and health of the fish fry. For example, high concentrations of ammonia nitrogen can damage the gill tissue of the fish fry, affecting their respiratory function.
[0003] In existing technology, a water pump creates negative pressure at the bottom of the aquaculture pond. Under this pressure difference, wastewater and solid pollutants are discharged through a drain pipe. However, during this discharge process, it's difficult to completely remove all the waste from the bottom of the pond, and residual feed residue, feces, and other organic matter continue to decompose. This leads to a continuous increase in the concentration of harmful substances in the water; for example, the levels of ammonia nitrogen and nitrite may gradually exceed the tolerance range of the fish fry. Even if some harmful substances are diluted through water changes, as long as the pollution source exists at the bottom, the deterioration of water quality is difficult to fundamentally improve. Therefore, we propose a bottom-drainage device for factory-style fish fry aquaculture to solve the above problems. Utility Model Content
[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0005] Therefore, the technical solution adopted by this utility model is as follows:
[0006] A bottom sludge removal device for fish fry factory farming includes a farming pond. A cleaning component is installed on the bottom of the farming pond, and a driving component is installed on one side of the farming pond. The cleaning component includes a fixed roller, the bottom of which is fixedly connected to the bottom of the farming pond. A connecting ring is sleeved on the surface of the fixed roller. A fixed plate is fixedly connected to one side of the connecting ring. An assembly tube is fixedly connected to the bottom of the fixed plate. A communicating window is opened on one side of the bottom of the assembly tube. A rotating roller is built into the assembly tube. Torsion springs are sleeved at both ends of the rotating roller and placed inside the assembly tube. A connecting seat is sleeved in the middle of the rotating roller. A scraper is fixedly connected to the bottom of the connecting seat. The driving component includes a connecting rod. The bottom of the connecting rod is fixedly connected to the end of the fixed plate away from the fixed roller. A connecting plate is fixedly connected to the top of the connecting rod. A rotating ring is fixedly connected to the other end of the connecting plate. Multiple toothed grooves are opened on the outer ring wall of the rotating ring. A motor is installed on one side of the rotating ring. A driving roller is fixedly connected to the output end of the motor. A gear is fixedly connected to the top of the driving roller.
[0007] Preferably, the bottom of the aquaculture pond is provided with a waste discharge port, and a negative pressure pipe is installed at the bottom of the waste discharge port.
[0008] Preferably, the inner ring wall of the connecting ring is rotatably connected to the fixed roller, and the bottom of the scraper is in contact with the bottom of the inner cavity of the aquaculture tank.
[0009] Preferably, one end of the torsion spring is fixedly connected to the inner wall of the assembly tube, and the other end of the torsion spring is fixedly connected to the rotating roller.
[0010] Preferably, one end of the connecting seat is fixedly connected to the rotating roller, and the other end of the connecting seat extends through the communicating window to the bottom of the fixed plate.
[0011] Preferably, the bottom of the rotating ring contacts and is rotatably connected to the aquaculture pond.
[0012] Preferably, the plurality of tooth grooves are evenly distributed around the axis of the rotating ring, and the gear and the rotating ring are connected by meshing tooth grooves.
[0013] Preferably, a fixing seat is fitted onto the surface of the motor, and the end of the fixing seat away from the motor is fixedly connected to the outer surface of the aquaculture pond.
[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0015] This invention comprises a breeding pond, a sludge inlet, a negative pressure pipe, a cleaning component, and a drive component. The sludge inlet at the bottom of the breeding pond is connected to the negative pressure pipe. Activating the negative pressure device generates suction, drawing sludge from the pond bottom towards the sludge inlet. The drive component includes a connecting rod, a connecting seat, a rotating ring, and a motor. The motor drives a gear to rotate, which meshes with the teeth of the rotating ring, thereby moving the connected fixed plate. The fixed roller of the cleaning component is fixed to the pond bottom, and its surface is connected to the fixed plate via a connecting ring. A rotating roller is located inside the mounting tube under the fixed plate. The rotating roller is connected to a scraper via the connecting seat. The scraper's bottom contacts the pond bottom, and torsion springs at both ends of the rotating roller allow the scraper to flip over when encountering hard objects, preventing damage and allowing it to reset and continue working. This device combines scraping and negative pressure suction, resulting in a significantly better cleaning effect than a single method. It efficiently and centrally removes impurities, uneaten feed, and feces from the pond bottom, ensuring the cleanliness of the breeding pond and promoting the healthy growth of fish fry. The scraper's anti-damage design enhances durability and reduces maintenance costs. Automated operation saves manpower, and cleaning at set times and frequencies facilitates management. It meets the needs of large-scale factory-style fish fry farming, effectively improving farming efficiency and quality, and contributing to the development of the fish fry farming industry. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the assembly structure of the aquaculture pond and cleaning components of this utility model.
[0018] Figure 3 This is a schematic diagram of the cleaning component structure of this utility model.
[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0020] Figure 5 This is a schematic diagram of the drive component structure of this utility model.
[0021] In the diagram: 1. Aquaculture pond; 101. Waste outlet; 102. Negative pressure pipe; 2. Cleaning assembly; 201. Fixed roller; 202. Connecting ring; 203. Fixed plate; 204. Assembly pipe; 205. Connecting window; 206. Rotating roller; 207. Torsion spring; 208. Connecting seat; 209. Scraper; 3. Drive assembly; 301. Connecting rod; 302. Connecting plate; 303. Rotating ring; 304. Gear; 305. Motor; 306. Fixed seat; 307. Drive roller; 308. Gear. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example: Figures 1-5 As shown, this utility model provides a bottom sludge removal device for fish fry factory farming, including a farming pond 1. A sludge outlet 101 is provided at the bottom of the farming pond 1, and a negative pressure pipe 102 is installed at the bottom of the sludge outlet 101. When the relevant negative pressure equipment is activated, a suction force is generated at the sludge outlet 101 through the negative pressure pipe 102, which can attract sludge and other impurities from the bottom of the farming pond 1 to the sludge outlet 101, preparing for subsequent discharge.
[0024] Furthermore, its drive assembly 3 includes a connecting rod 301. The bottom of the connecting rod 301 is fixedly connected to the end of the fixed plate 203 away from the fixed roller 201. A connecting plate 302 is fixedly connected to the top of the connecting rod 301. A rotating ring 303 is fixedly connected to the other end of the connecting plate 302. The bottom of the rotating ring 303 contacts and is rotatably connected to the aquaculture pond 1. The outer ring wall of the rotating ring 303 has a toothed groove 304. A motor 305 is provided on one side of the rotating ring 303. A fixed seat 306 is sleeved on the surface of the motor 305. The end of the fixed base 306 away from the motor 305 is fixedly connected to the outer surface of the aquaculture tank 1. A drive roller 307 is fixedly connected to the output end of the motor 305. A gear 308 is fixedly connected to the top of the drive roller 307. The outer ring wall of the rotating ring 303 has evenly distributed tooth grooves 304. The gear 308 and the rotating ring 303 are meshed and connected through the tooth grooves 304. When the motor 305 in the drive assembly 3 is working, the gear 308 fixedly connected to the output end of the motor 305 will drive the rotating ring 303 that meshes with it to rotate. The rotating ring 303 is connected to the fixed plate 203 through the connecting base 208 and the connecting rod 301, so it will drive the fixed plate 203 to move. The assembly tube 204 fixedly connected to one side of the fixed plate 203 will move together. A scraper 209 is fixed in the middle of the rotating roller 206 inside the assembly tube 204 through the connecting base 208. The bottom of the scraper 209 is in contact with the bottom of the inner cavity of the aquaculture tank 1. During the movement of the assembly pipe 204, the scraper 209 will slide along the bottom of the breeding tank 1, scraping the sludge at the bottom towards the sludge outlet 101. Combined with the suction generated by the negative pressure pipe 102, the sludge is discharged from the breeding tank 1 more efficiently through the sludge outlet 101.
[0025] Furthermore, a cleaning component 2 is installed at the bottom of the aquaculture pond 1, and a driving component 3 is installed on one side of the aquaculture pond 1. The cleaning component 2 includes a fixed roller 201, the bottom of which is fixedly connected to the bottom of the aquaculture pond 1. A connecting ring 202 is sleeved on the surface of the fixed roller 201, and the inner ring wall of the connecting ring 202 is rotatably connected to the fixed roller 201. A fixing plate 203 is fixedly connected to one side of the connecting ring 202, and an assembly tube 204 is fixedly connected to the bottom of the fixing plate 203. A communicating window 205 is opened on one side of the bottom of the assembly tube 204, and a rotating roller 206 is built into the assembly tube 204. Torsion springs 207 are sleeved at both ends of the rotating roller 206. Inside the assembly tube 204, one end of the torsion spring 207 is fixedly connected to the inner wall of the assembly tube 204, and the other end of the torsion spring 207 is fixedly connected to the rotating roller 206. A connecting seat 208 is sleeved in the middle of the rotating roller 206. One end of the connecting seat 208 is fixedly connected to the rotating roller 206, and the other end of the connecting seat 208 extends through the connecting window 205 to the bottom of the fixing plate 203. A scraper 209 is fixedly connected to the bottom of the connecting seat 208. The bottom of the scraper 209 contacts the bottom of the inner cavity of the breeding pond 1. Torsion springs 207 are sleeved at both ends of the rotating roller 206. One end of the torsion spring 207 is fixedly connected to the inner wall of the assembly tube 204, and the other end is fixedly connected to the rotating roller 206. When the scraper 209 encounters hard objects or other obstacles at the bottom of the aquaculture pond 1, the scraper 209 can be flipped at a certain angle by the action of the torsion spring 207. After passing the obstacle, it can return to its original position by the elasticity of the torsion spring 207 and continue to scrape the dirt. This ensures that the scraper 209 can continuously clean the bottom of the aquaculture pond 1, and also prevents the scraper 209 from being damaged by hard collisions.
[0026] The scraping action of the scraper 209 at the bottom of the aquaculture pond 1, combined with the negative pressure adsorption of the negative pressure pipe 102, can thoroughly clean the sludge at the bottom of the aquaculture pond 1. Compared with relying solely on negative pressure adsorption or manual cleaning, it can more effectively concentrate and discharge impurities, uneaten feed, feces, and other sludge scattered throughout the pond bottom, maintaining a clean environment at the bottom of the aquaculture pond 1, which is beneficial to the healthy growth of fish fry. The scraper 209 is connected to the rotating roller 206 inside the assembly pipe 204 via the torsion spring 207, and has a flipping function. It can flexibly flip when encountering hard objects, avoiding damage to the scraper 209 due to direct collision, improving the overall durability of the cleaning component 2, reducing maintenance costs such as equipment repair and scraper 209 replacement, and can stably clean the bottom sludge of the aquaculture pond 1 for a long time without the need for continuous manual operation of the scraper 209, saving labor costs. It can also perform regular cleaning work according to set time and frequency, which is convenient for management and operation during the aquaculture process, and is more suitable for large-scale factory-style fish fry aquaculture.
[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A bottom sludge removal device for factory-scale fish fry aquaculture, characterized in that, The system includes a breeding pond (1), a cleaning assembly (2) installed at the bottom of the breeding pond (1), and a driving assembly (3) installed on one side of the breeding pond (1). The cleaning assembly (2) includes a fixed roller (201), the bottom of which is fixedly connected to the bottom of the breeding pond (1). A connecting ring (202) is sleeved on the surface of the fixed roller (201). A fixing plate (203) is fixedly connected to one side of the connecting ring (202). An assembly tube (204) is fixedly connected to the bottom of the fixing plate (203). A communicating window (205) is opened on one side of the bottom of the assembly tube (204). A rotating roller (206) is built into the assembly tube (204). Torsion springs (207) are sleeved at both ends of the rotating roller (206). The torsion springs (207) are placed in the assembly tube (204). Inside, a connecting seat (208) is sleeved in the middle of the rotating roller (206), and a scraper (209) is fixedly connected to the bottom of the connecting seat (208). The driving assembly (3) includes a connecting rod (301). The bottom of the connecting rod (301) is fixedly connected to one end of the fixed plate (203) away from the fixed roller (201). A connecting plate (302) is fixedly connected to the top of the connecting rod (301). A rotating ring (303) is fixedly connected to the other end of the connecting plate (302). Multiple toothed grooves (304) are opened on the outer ring wall of the rotating ring (303). A motor (305) is provided on one side of the rotating ring (303). A driving roller (307) is fixedly connected to the output end of the motor (305). A gear (308) is fixedly connected to the top of the driving roller (307).
2. The fish fry factory farming bottom sludge discharge device according to claim 1, characterized in that, The bottom of the aquaculture pond (1) is provided with a waste inlet (101), and a negative pressure pipe (102) is installed at the bottom of the waste inlet (101).
3. The fish fry factory farming bottom sludge discharge device according to claim 1, characterized in that, The inner ring wall of the connecting ring (202) is rotatably connected to the fixed roller (201), and the bottom of the scraper (209) is in contact with the bottom of the inner cavity of the aquaculture pond (1).
4. The bottom sludge discharge device for factory-scale fish fry aquaculture according to claim 1, characterized in that, One end of the torsion spring (207) is fixedly connected to the inner wall of the assembly tube (204), and the other end of the torsion spring (207) is fixedly connected to the rotating roller (206).
5. A bottom sludge removal device for factory-scale fish fry aquaculture according to claim 1, characterized in that, One end of the connecting seat (208) is fixedly connected to the rotating roller (206), and the other end of the connecting seat (208) extends through the connecting window (205) to the bottom of the fixing plate (203).
6. The fish fry factory farming bottom sludge discharge device according to claim 1, characterized in that, The bottom of the rotating ring (303) is in contact with and rotatably connected to the aquaculture pond (1).
7. The fish fry factory farming bottom sludge discharge device according to claim 1, characterized in that, The multiple tooth grooves (304) are evenly distributed around the axis of the rotating ring (303), and the gear (308) and the rotating ring (303) are connected by meshing through the tooth grooves (304).
8. The bottom sludge removal device for factory-scale fish fry aquaculture according to claim 1, characterized in that, A fixing seat (306) is fitted onto the surface of the motor (305), and the end of the fixing seat (306) away from the motor (305) is fixedly connected to the outer surface of the aquaculture pond (1).