Unpowered triple-cycle aquaculture system

Abstract

The invention discloses an unpowered triple-cycle aquaculture system, and belongs to the technical field of aquaculture, the unpowered triple-cycle aquaculture system comprises an aquaculture unit used for bearing a water body to realize aquaculture, and the front end of the aquaculture unit is provided with a hydrodynamic force collection and storage mechanism; the substrate primary filtering unit is used for removing harmful substances at the bottom of the water body; the floating object removing unit is used for removing harmful substances floating in the water body, a filter screen cleaning mechanism is arranged in the floating object removing unit, and a transmission mechanism is connected between the filter screen cleaning mechanism and the water power collecting and storing mechanism; the oil film removing unit is used for removing oil films and foam harmful substances on the water surface; and the combined biochemical unit is used for carrying out biochemical treatment on the water body. The culture unit is arranged to be matched with the substrate primary filtering unit, the floating object removing unit and the combined biochemical unit, three circulation loops can be formed, multi-stage purification treatment on a water body is achieved according to the fluid communication principle, and therefore it is guaranteed that the water body is clean, a filter screen is automatically cleaned, and blockage is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of aquaculture, and in particular to a non-powered three-circulation aquaculture system. Background Art

[0002] China is a major fishing country in the world where the total amount of farmed aquatic products exceeds the total amount of fishing. my country's contribution to fishery science and technology progress has exceeded 60%, and it is in a leading position in large-scale agriculture. Aquaculture has become the most efficient production method for protein conversion. Under the background of the big food concept and environmental protection, on the one hand, China's fishery has developed rapidly, and fishery technology represented by factory aquaculture will become an important path.

[0003] With the rapid development of aquaculture, traditional aquaculture systems generally have problems such as high energy consumption, environmental pollution, and difficulty in stabilizing aquaculture water quality. Especially in large-scale aquaculture, equipment such as water pumps and aeration devices that rely on electricity often result in high energy consumption and management costs. In addition, water quality management in traditional aquaculture systems often requires frequent water changes and chemical treatments, further increasing the environmental burden; therefore, we propose a non-powered three-circulation aquaculture system to solve this problem. Summary of the invention

[0004] The purpose of the present invention is to provide a non-powered three-circulation aquaculture system to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A non-powered three-circulation aquaculture system, comprising:

[0007] A breeding unit, used to carry water to achieve breeding, the front end of the breeding unit is provided with a water power collection and storage mechanism;

[0008] Substrate primary filtration unit, used to remove harmful substances at the bottom of the water body;

[0009] A floating object removal unit is used to remove harmful floating objects in the water body. A filter cleaning mechanism is provided in the floating object removal unit, and a transmission mechanism is connected between the filter cleaning mechanism and the water power collection and storage mechanism;

[0010] Oil film removal unit, used to remove oil film and foam harmful substances on the water surface;

[0011] Combined biochemical unit is used for biochemical treatment of water bodies.

[0012] Preferably, the breeding unit comprises: a breeding container and a floating object separation tube, a substrate separation box is fixedly installed at the bottom of the breeding container, a through hole is opened at the bottom of the breeding container, a substrate partition net is fixedly installed in the through hole, the floating object separation tube is fixedly installed in the substrate partition net, and an upper floating object inlet and a middle floating object inlet are opened on the outer side of the floating object separation tube;

[0013] A notch is provided on the top of one side of the breeding container, and an oil film collecting filter is fixedly installed in the notch.

[0014] Preferably, the substrate primary filtration unit comprises: a substrate filtration shell and a first filter screen, the first filter screen is fixedly installed in the substrate filtration shell, and the bottom of one side of the substrate filtration shell is connected to a substrate filtration inlet pipe, the other end of the substrate filtration inlet pipe is connected to a substrate separation box, the top of the other side of the substrate filtration shell is connected to a substrate filtration outlet pipe, and the bottom of the substrate filtration shell is connected to a first sewage valve.

[0015] Preferably, the floating object removal unit comprises a pressure filter shell and a second filter screen, the second filter screen is fixedly installed in the pressure filter shell, and the bottom of one side of the pressure filter shell is connected to a pressure filter inlet pipe, the other end of the pressure filter inlet pipe is connected to the bottom end of the floating object separation pipe, the top of the other side of the pressure filter shell is connected to a pressure filter outlet pipe, the other end of the substrate filter outlet pipe is connected to the pressure filter inlet pipe, and the bottom of the pressure filter shell is connected to a second drain valve;

[0016] A stabilizing frame and two pressure sensors are fixedly installed on one side of the pressure filter shell, a controller is fixedly connected to the top of the stabilizing frame, the pressure sensor is connected to the controller signal, and the breeding container is fixedly connected to the other end of the stabilizing frame.

[0017] Preferably, the oil film removal unit comprises: an oil film remover and a first negative pressure water pump, an oil film collection box is fixedly installed on one side of the oil film remover, the other end of the oil film collection box is connected to the breeding container, an oil film introduction pipe is connected to the top of one side of the oil film remover, a plurality of lower water-through oil-blocking plates and upper water-through countercurrent baffles are fixedly installed inside the oil film remover, a control valve is connected to the other side of the oil film remover, a first connecting pipe is connected between the oil film remover and the first negative pressure water pump, a first one-way valve is arranged on the first connecting pipe, a first air conduit is connected to the top of the first negative pressure water pump, and a first switch valve is arranged in the first air conduit;

[0018] The first negative pressure water lifter is fixedly installed on the top of the oil film remover, and the bottom of one side of the first negative pressure water lifter is connected to a first outlet pipe, and the first outlet pipe is provided with a first water valve.

[0019] Preferably, the combined biochemical unit comprises: a biochemical pool, a biochemical inner water tank and a second negative pressure water pump, an isolation plate and an isolation net are fixedly installed in the biochemical pool, the biochemical inner water tank is fixedly installed on one side of the biochemical pool, the other end of the pressure filter outlet pipe is connected to the biochemical inner water tank, a second connecting pipe is connected between the biochemical inner water tank and the second negative pressure water pump, a second one-way valve is arranged on the second connecting pipe, the second negative pressure water pump is fixedly installed on the top of the biochemical pool, a second air duct is connected to the top of the second negative pressure water pump, a second switch valve is arranged on the second air duct, a second outlet pipe is connected to the bottom of one side of the second negative pressure water pump, a second water valve is arranged on the second outlet pipe, and a water supply pipe is connected to the bottom of one side of the biochemical pool.

[0020] Preferably, it also includes: a water supply mechanism, which includes: a water pump and a U-shaped tube, the water outlet of the water pump is connected to the U-shaped tube, the two ends of the U-shaped tube are respectively connected to the first negative pressure water pump and the second negative pressure water pump, and both ends of the U-shaped tube are provided with electric control valves.

[0021] Preferably, the hydrodynamic collection and storage mechanism comprises: a fixed seat, a counterweight plate, a rotating shaft, a round shaft and two connecting shafts, the connecting shaft is rotatably mounted inside the breeding container, the outer side of the connecting shaft is fixedly sleeved with a shifting blade, the two shifting blades are respectively arranged below the bottom ends of the water delivery pipe and the first outlet pipe, the outer front end of the connecting shaft is fixedly sleeved with a first one-way bearing, the outer side of the first one-way bearing is sleeved with a first driving pulley, the rotating shaft and the round shaft are both rotatably mounted on the front side of the fixed seat, and the fixed seat is fixedly mounted on the front side of the breeding container;

[0022] The outer side of the circular shaft is fixedly sleeved with a first driven pulley and a small gear, and the first driven pulley and the two first driving pulleys are driven by the same first belt, and a ratchet, a large gear and a winding wheel are fixedly sleeved on the outer side of the rotating shaft, and the small gear and the large gear are meshed with each other, and a connecting rope is fixedly installed on the top of the counterweight plate, and the top of the connecting rope is fixedly installed on the outer side of the winding wheel. A guide rail, a U-shaped frame, an electromagnet and a second conductive sheet are fixedly installed on the front side of the fixed seat, and the counterweight plate is slidably sleeved on the outer side of the guide rail, and a positioning wheel is rotatably installed inside the U-shaped frame, and the positioning wheel abuts against the outer side of the connecting rope, and two square rods are fixedly installed on the front side of the fixed seat, and the outer sides of the two square rods are slidably sleeved with the same claw, one side of the claw movably abuts against the outer side of the ratchet, and the other side of the claw is fixedly installed with an iron sheet, a first conductive sheet and a compression spring, and the other end of the compression spring is fixedly connected to the fixed seat, and the electromagnet cooperates with the iron sheet by magnetic attraction.

[0023] Preferably, the filter cleaning mechanism comprises: a driving motor, a vertical shaft and two cylinders, the driving motor is fixedly mounted on the top of the pressure filter housing, a small bevel gear is fixedly mounted on the output shaft of the driving motor, the vertical shaft is rotatably mounted on the top of the pressure filter housing, a large bevel gear is fixedly mounted on the top of the vertical shaft, the small bevel gear and the large bevel gear are meshed with each other, a rotating plate is fixedly mounted on the bottom ends of both sides of the vertical shaft, a compression box is fixedly mounted on the other end of the rotating plate, and a piston plate is slidably mounted in the compression box;

[0024] A crankshaft is rotatably mounted in the compression box, a linkage plate is hingedly mounted on one side of the piston plate, the linkage plate is rotatably sleeved on the outer side of the crankshaft, a transmission gear is fixedly mounted on the top of the crankshaft, an inner gear ring is fixedly mounted inside the pressure filter housing, and the transmission gear and the inner gear ring are meshed with each other;

[0025] The top and bottom of the compression box are connected to an upper tube and a lower tube respectively, a third one-way valve and a fourth one-way valve are respectively arranged in the lower tube and the upper tube, the other end of the lower tube is connected to the corresponding cylinder, and the bottom of the cylinder is connected to a plurality of water spray pipes.

[0026] Preferably, a side plate is fixedly mounted on one end of the cylinder, the side plate is fixedly mounted on one side of the corresponding compression box, and a positioning ring is fixedly mounted on the bottom of the rotating plate, and the positioning ring is fixedly sleeved on the outer side of the cylinder.

[0027] Preferably, the transmission mechanism includes: a transverse shaft, a second driving pulley, a second driven pulley and a second one-way bearing, a mounting plate is fixedly installed on the top of the pressure filter housing, the transverse shaft is rotatably installed in the mounting plate, and the rear end of the transverse shaft is fixedly connected to the small bevel gear, the front end of the transverse shaft is fixedly installed with a second driven pulley, the inner ring of the second one-way bearing is fixedly sleeved on the outer side of the circular shaft, the outer ring of the second one-way bearing is fixedly installed with a second driven pulley, and the second driving pulley and the second driven pulley are transmission-installed with the same second belt.

[0028] Preferably, a bottom plate is fixedly installed on the bottom front side of the fixed seat, a fourth conductive sheet and a buffer gasket are fixedly installed on the top of the bottom plate, a fourth conductive sheet is fixedly installed on the top of the counterweight plate, a DC motor is used as the driving motor, the second conductive sheet and the fourth conductive sheet are electrically connected to the positive and negative poles of the driving motor respectively, and the first conductive sheet and the third conductive sheet are electrically connected to both ends of the power supply respectively.

[0029] The beneficial effects of the present invention are:

[0030] 1. In the present invention, the non-powered three-circulation aquaculture system is described. By closing the first water valve, the second water valve, the first sewage valve, the second sewage valve, and the control valve, water is injected into the aquaculture container to about the middle of the oil film collection filter. According to the principle of the communicating vessel, the water levels of the biochemical pool and the oil film remover are also at the same water level as the water level of the aquaculture container. By opening the electric control valve and the first switch valve and the second switch valve, and closing the first water valve and the second water valve, the water pump is started to introduce water into the first negative pressure water pump and the second negative pressure water pump through the U-shaped pipe. At this time, the first check valve and the second check valve are in a normally closed state, and water is discharged from the air connecting pipe and the air connecting pipe. The water pump stops working, and controls the electric control valve, the first switch valve, and the second switch valve to be closed, and the first water valve and the second water valve are opened. The water in the first negative pressure water pump enters the aquaculture container through the first outlet pipe under the action of gravity, and the second negative pressure water pump The water is introduced into the biochemical pool under the action of gravity, so that a vacuum state occurs in the first negative pressure water lifter and the second negative pressure water lifter. At this time, the first one-way valve and the second one-way valve are automatically opened, and the atmospheric pressure of the water in the culture container, the biochemical pool and the oil film remover will be higher than the atmospheric pressure of the first negative pressure water lifter and the second negative pressure water lifter. Under the action of pressure, the water in the culture container will pass through the upper floating object inlet and the middle floating object inlet of the floating object separation tube, and enter the pressure filter inlet pipe, the pressure filter shell, the pressure filter outlet pipe, the biochemical inner water tank, the connecting pipe, the second one-way valve, the second negative pressure water lifter, the second outlet pipe, and the second water valve in sequence to enter the biochemical pool for biochemical treatment of the water, and then flow back to the culture container through the isolation net and the water pipe to form a water cycle of the first connecting loop. During the cycle, the floating objects in the water body of the culture container continuously enter the pressure filter shell, and are filtered and purified by the second filter net during the period.

[0031] 2. In the present invention, the water containing harmful substances at the bottom of the aquaculture container passes through the substrate isolation net, the substrate separation box, the substrate filter inlet pipe, the substrate primary filter, the substrate filter outlet pipe, the pressure filter inlet pipe, the pressure filter shell, the pressure filter outlet pipe, the biochemical inner water tank, the connecting pipe, the second one-way valve, the second negative pressure water pump, the second outlet pipe, and the second water valve into the biochemical pool to perform biochemical treatment on the water, and then flows back to the aquaculture container through the isolation net and the water pipe to form a water circulation of the second connecting loop. In this process, the substrate is filtered and removed by the first filtration. After running for a certain period of time, the first sewage valve is opened to discharge the dirt in the substrate primary filter shell;

[0032] 3. In the present invention, the non-powered three-circulation aquaculture system, water flows from the aquaculture container through the oil film collection filter, the oil film introduction pipe, the oil film remover, the first connecting pipe, the first one-way valve, the first negative pressure water lifter, the first outlet pipe, and the first water valve back to the aquaculture container, forming a water circulation of the third connecting loop. In the oil film remover, the oil film water passes through a plurality of lower water-through oil separators and upper water-through countercurrent separators, and flows in an "S" shape. The density difference between water and oil film foam is used to achieve oil-water stratification. The upper oil film accumulates for a period of time, and the control valve is opened to discharge the oil film foam. In the aquaculture container, the floating object introduction pipe is immersed in the water body, which isolates the oil film and foam and prevents the oil film and foam from entering the floating object separation pipe;

[0033] 4. In the present invention, the non-powered three-circulation aquaculture system, water is input into the aquaculture container through the water pipe and the first outlet pipe to drive the two toggle blades to rotate and drive the two connecting shafts to rotate clockwise, the connecting shaft drives the first driving pulley to rotate through the first one-way bearing, the first driving pulley drives the first driven pulley and the round shaft to rotate through the first belt, the round shaft drives the rotating shaft to rotate counterclockwise through the meshing transmission of the small gear and the large gear, the rotating shaft drives the winding wheel and the ratchet to rotate synchronously, when the winding wheel rotates, the connecting rope is wound up and the counterweight plate is driven to move upward, when the ratchet rotates, the claw is pushed to move horizontally and the compression spring is pressed The ratchet is compressed, and after the ratchet rotates a certain angle, the claw is reset under the action of the compression spring, thereby limiting the reversal of the ratchet. Therefore, when water is added to the breeding container, the power of the water can be converted into the potential energy of the counterweight plate for storage. During the filtering of floating objects by the second filter, the pressure on the upper and lower sides of the second filter is monitored by two pressure sensors. When the first filter is blocked by the filtered object, the pressure monitored by the lower pressure sensor is greater than the pressure monitored by the upper pressure sensor, and the signal is transmitted to the controller. The controller controls the electromagnet to start, and the electromagnet generates magnetic force to magnetically attract the iron sheet and drive the claw to move horizontally. The gear wheel is rotated by the second gear, and the second ... The gear performs circular motion, and the inner gear ring drives the transmission gear to rotate by meshing with the transmission gear, and drives the crankshaft to rotate. The crankshaft drives the piston plate to move back and forth left and right through the linkage rod. When the piston plate moves to the side away from the rotating plate, the water in the pressure filter shell enters the compression box through the upper pipe and the fourth one-way valve. When the piston plate moves in the reverse direction, the water in the compression box is introduced into the cylinder from the lower pipe and the third one-way valve, and sprayed out through the water spray pipe at the bottom of the cylinder. The second filter screen is flushed by the water pressure, and the blockage is flushed downward and deposited on the inner bottom of the pressure filter shell. The filter residue is discharged by opening the second sewage valve;

[0034] 5. In the present invention, in the non-powered three-circulation aquaculture system, when the gravitational potential energy of the counterweight plate is released, the counterweight plate returns to the initial position so that the third conductive sheet contacts the fourth conductive sheet, and when the two pressure sensors detect the pressure difference and control the electromagnet to start through the controller, the first conductive sheet contacts the second conductive sheet, so that the drive motor is powered on and automatically starts, thereby driving the small bevel gear to rotate, thereby providing power for the rotation of the vertical shaft to clean the second filter screen;

[0035] 6. In the present invention, the non-powered three-circulation aquaculture system can form three circulation loops by setting a breeding unit in conjunction with a substrate primary filtration unit, a floating object removal unit and a combined biochemical unit. The water in the breeding container is non-poweredly transported to the same height as the water surface of the breeding container by relying on the fluid communication principle, and the bottom sediment harmful substances, floating harmful substances in the water body and oil film foam harmful substances on the water surface are physically removed from the bottom of the breeding container to the water surface, and the water body is non-poweredly lifted into the biochemical pool, and the soluble harmful substances are biologically transformed through the biochemical pool, thereby realizing multi-stage purification of the water body, thereby ensuring the cleanliness of the water body and promoting the healthy growth of aquatic organisms. The hydraulic power collection and storage mechanism can convert the hydraulic impact force into the gravitational potential energy of the counterweight plate for storage during the water circulation, and the controller, the pressure sensor, the transmission mechanism and the filter cleaning mechanism can automatically clean the filter when the filter is blocked, and the electric drive is automatically switched after the energy stored in the hydraulic power collection and storage mechanism is consumed, so as to ensure the cleaning effect, make full use of energy and do not require manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the three-dimensional structure of a non-powered three-circulation aquaculture system proposed by the present invention;

[0037] Figure 2 This is a schematic cross-sectional view of a non-powered three-circulation aquaculture system proposed by the present invention;

[0038] Figure 3 This is a schematic cross-sectional view of the combined biochemical unit proposed in the present invention;

[0039] Figure 4 This is a schematic cross-sectional view of the floating object removal unit proposed in the present invention;

[0040] Figure 5 This is a schematic cross-sectional view of the breeding unit proposed by the present invention;

[0041] Figure 6 This is a schematic cross-sectional view of the oil film removal unit proposed in the present invention;

[0042] Figure 7 This is a schematic cross-sectional view of the substrate primary filtration unit proposed in the present invention;

[0043] Figure 8 This is a schematic diagram of the three-dimensional structure of the hydrodynamic collection and storage mechanism proposed by the present invention;

[0044] Fig. 9 for Figure 8 A partial enlarged view of part A;

[0045] Fig.10 for Figure 8 A partial enlarged view of part B;

[0046] Fig.11 This is a schematic diagram of the side cross-sectional structure of the breeding unit proposed by the present invention;

[0047] Fig.12 for Fig.11 A partial enlarged view of part C in the middle;

[0048] Fig.13 This is a three-dimensional structural schematic diagram of the transmission mechanism and filter cleaning mechanism proposed by the present invention;

[0049] Fig.14 It is a partial cross-sectional structural schematic diagram of the filter cleaning mechanism proposed by the present invention;

[0050] Fig.15 for Fig.14 A partial enlarged view of part D in the middle;

[0051] Fig.16 This is a circuit diagram of the drive motor proposed by the present invention.

[0052] In the figure: 1. aquaculture unit; 101. aquaculture container; 102. substrate separator; 103. substrate separation box; 104. floating object separation pipe; 1041. upper floating object inlet; 105. oil film collection filter; 1042. middle floating object inlet; 2. oil film removal unit; 201. oil film remover; 202. first negative pressure water pump; 203. first connecting pipe; 204. first non-return valve; 205. first air duct; 206. control valve; 207. first water valve; 208. first outlet pipe; 209. oil film collection box; 210. oil film introduction pipe; 211. lower water oil separator; 212. upper water countercurrent separator; 214. first switch valve; 3. combined biochemical unit; 301. biochemical pool; 3 02, biochemical inner water tank; 303, second negative pressure water pump; 304, second connecting pipe; 305, second one-way valve; 306, second air duct; 307, second switch valve; 308, second outlet pipe; 309, second water valve; 310, isolation net; 311, isolation plate; 312, water pipe; 4, floating object removal unit; 401, pressure filter shell; 402, second filter screen; 403, pressure filter inlet pipe; 404, pressure filter outlet pipe; 405, second sewage valve; 406, pressure sensor; 407, stabilizing frame; 408, controller; 5, substrate primary filtration unit; 501, substrate filter shell; 502, substrate filter inlet pipe; 503, substrate filter outlet pipe; 504, first filter screen; 505, first a sewage valve; 6, water supply mechanism; 601, water pump; 602, U-shaped pipe; 603, electric control valve; 7, water power collection and storage mechanism; 701, connecting shaft; 702, toggle blade; 703, first one-way bearing; 704, first belt; 705, first driven pulley; 706, large gear; 707, ratchet; 708, claw; 709, first conductive sheet; 710, second conductive sheet; 711, fixed seat; 712, electromagnet; 713, compression spring; 714, iron sheet; 715, U-shaped frame; 716, connecting rope; 717, first active pulley; 718, rotating shaft; 719, winding wheel; 720, round shaft; 721, small gear; 722, counterweight plate; 723, bottom plate; 724, third guide electric sheet; 725, fourth conductive sheet; 726, buffer gasket; 727, guide rail; 8, transmission mechanism; 801, second driven pulley; 802, second belt; 803, second driving pulley; 804, second one-way bearing; 805, horizontal axis; 806, mounting plate; 9, filter cleaning mechanism; 901, drive motor; 902, vertical axis; 903, small bevel gear; 904, large bevel gear; 905, inner gear ring; 906, rotating plate; 907, cylinder; 908, water spray pipe; 909, lower tube; 910, third one-way valve; 911, compression box; 912, piston plate; 913, fourth one-way valve; 914, linkage plate; 915, transmission gear; 916, upper tube; 917, crankshaft; 918, side plate. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0054] Reference Figure 1 - Fig.16 , a non-powered three-circulation aquaculture system, comprising:

[0055] The breeding unit 1 is used to carry water to achieve breeding. The front end of the breeding unit 1 is provided with a water power collection and storage mechanism 7;

[0056] The substrate primary filtration unit 5 is used to remove harmful substances at the bottom of the water body;

[0057] The floating object removal unit 4 is used to remove harmful floating objects in the water body. A filter cleaning mechanism 9 is provided in the floating object removal unit 4. A transmission mechanism 8 is connected between the filter cleaning mechanism 9 and the water power collection and storage mechanism 7.

[0058] Oil film removal unit 2, used to remove oil film and foam harmful substances on the water surface;

[0059] The combined biochemical unit 3 is used for biochemical treatment of water.

[0060] In this embodiment, the breeding unit 1 includes: a breeding container 101 and a floating object separation tube 104, a substrate separation box 103 is fixedly installed at the bottom of the breeding container 101, a through hole is opened at the bottom of the breeding container 101, a substrate partition net 102 is fixedly installed in the through hole, the floating object separation tube 104 is fixedly installed in the substrate partition net 102, and an upper floating object inlet 1041 and a middle floating object inlet 1042 are opened on the outer side of the floating object separation tube 104;

[0061] A notch is provided on the top of one side of the culture container 101, and an oil film collecting filter 105 is fixedly installed in the notch.

[0062] In this embodiment, the substrate primary filtration unit 5 includes: a substrate filtration shell 501 and a first filter screen 504, the first filter screen 504 is fixedly installed in the substrate filtration shell 501, and the bottom of one side of the substrate filtration shell 501 is connected to a substrate filtration inlet pipe 502, the other end of the substrate filtration inlet pipe 502 is connected to a substrate separation box 103, the top of the other side of the substrate filtration shell 501 is connected to a substrate filtration outlet pipe 503, and the bottom of the substrate filtration shell 501 is connected to a first sewage valve 505.

[0063] In this embodiment, the floating object removing unit 4 includes a pressure filter housing 401 and a second filter screen 402, the second filter screen 402 is fixedly installed in the pressure filter housing 401, and the bottom of one side of the pressure filter housing 401 is connected with a pressure filter inlet pipe 403, the other end of the pressure filter inlet pipe 403 is connected with the bottom end of the floating object separation pipe 104, the top of the other side of the pressure filter housing 401 is connected with a pressure filter outlet pipe 404, the other end of the substrate filter outlet pipe 503 is connected with the pressure filter inlet pipe 403, and the bottom of the pressure filter housing 401 is connected with a second drain valve 405;

[0064] A stabilizing frame 407 and two pressure sensors 406 are fixedly installed on one side of the pressure filter shell 401 . A controller 408 is fixedly connected to the top of the stabilizing frame 407 . The pressure sensor 406 is signal-connected to the controller 408 . The breeding container 101 is fixedly connected to the other end of the stabilizing frame 407 .

[0065] In this embodiment, the oil film removal unit 2 includes: an oil film remover 201 and a first negative pressure water pump 202, an oil film collection box 209 is fixedly installed on one side of the oil film remover 201, and the other end of the oil film collection box 209 is connected to the breeding container 101. The top of one side of the oil film remover 201 is connected to an oil film introduction pipe 210, and a plurality of lower water-through oil-blocking plates 211 and upper water-through countercurrent baffles 212 are fixedly installed inside the oil film remover 201. The other side of the oil film remover 201 is connected to a control valve 206, and a first connecting pipe 203 is connected between the oil film remover 201 and the first negative pressure water pump 202, and a first one-way valve 204 is arranged on the first connecting pipe 203. The top of the first negative pressure water pump 202 is connected to a first air duct 205, and a first switch valve 214 is arranged in the first air duct 205;

[0066] The first negative pressure water lifter 202 is fixedly installed on the top of the oil film remover 201 . The bottom of one side of the first negative pressure water lifter 202 is connected to a first outlet pipe 208 , and a first water valve 207 is provided on the first outlet pipe 208 .

[0067] In this embodiment, the combined biochemical unit 3 includes: a biochemical pool 301, a biochemical inner water tank 302 and a second negative pressure water pump 303, an isolation plate 311 and an isolation net 310 are fixedly installed in the biochemical pool 301, the biochemical inner water tank 302 is fixedly installed on one side of the biochemical pool 301, the other end of the pressure filter outlet pipe 404 is connected to the biochemical inner water tank 302, and the biochemical inner water tank 302 and the second negative pressure water pump 303 are connected by a second connecting pipe 304, and the second connecting pipe 311 is fixedly installed in the biochemical pool 301. 04 is provided with a second one-way valve 305, the second negative pressure water pump 303 is fixedly installed on the top of the biochemical pool 301, the top of the second negative pressure water pump 303 is connected with a second air duct 306, the second air duct 306 is provided with a second switch valve 307, the bottom of one side of the second negative pressure water pump 303 is connected with a second outlet pipe 308, the second outlet pipe 308 is provided with a second water valve 309, and the bottom of one side of the biochemical pool 301 is connected with a water pipe 312.

[0068] In this embodiment, it also includes: a water supply mechanism 6, which includes: a water pump 601 and a U-shaped tube 602, the water outlet of the water pump 601 is connected to the U-shaped tube 602, the two ends of the U-shaped tube 602 are respectively connected to the first negative pressure water pump 202 and the second negative pressure water pump 303, and both ends of the U-shaped tube 602 are provided with electric control valves 603.

[0069] In this embodiment, the hydrodynamic collection and storage mechanism 7 includes: a fixed seat 711, a counterweight plate 722, a rotating shaft 718, a circular shaft 720 and two connecting shafts 701, the connecting shaft 701 is rotatably mounted inside the breeding container 101, the outer side of the connecting shaft 701 is fixedly sleeved with a shifting blade 702, the two shifting blades 702 are respectively arranged below the bottom ends of the water delivery pipe 312 and the first outlet pipe 208, the outer front end of the connecting shaft 701 is fixedly sleeved with a first one-way bearing 703, the outer side of the first one-way bearing 703 is sleeved with a first driving pulley 717, the rotating shaft 718 and the circular shaft 720 are both rotatably mounted on the front side of the fixed seat 711, and the fixed seat 711 is fixedly mounted on the front side of the breeding container 101;

[0070] The outer side of the circular shaft 720 is fixedly sleeved with a first driven pulley 705 and a pinion 721, and the first driven pulley 705 and the two first driving pulleys 717 are driven and installed with the same first belt 704. The outer side of the rotating shaft 718 is fixedly sleeved with a ratchet 707, a large gear 706 and a winding wheel 719, and the small gear 721 and the large gear 706 are meshed with each other. The top of the counterweight plate 722 is fixedly installed with a connecting rope 716, and the top of the connecting rope 716 is fixedly installed on the outer side of the winding wheel 719. The front side of the fixed seat 711 is fixedly installed with a guide rail 727, a U-shaped frame 715, an electromagnet 712 and The second conductive sheet 710 and the counterweight plate 722 are slidably mounted on the outer side of the guide rail 727. A positioning wheel is rotatably installed inside the U-shaped frame 715, and the positioning wheel abuts against the outer side of the connecting rope 716. Two square rods are fixedly installed on the front side of the fixed seat 711. The outer sides of the two square rods are slidably mounted with the same claw 708. One side of the claw 708 is movably abutted against the outer side of the ratchet 707. The other side of the claw 708 is fixedly mounted with an iron sheet 714, a first conductive sheet 709 and a compression spring 713. The other end of the compression spring 713 is fixedly connected to the fixed seat 711. The electromagnet 712 cooperates with the iron sheet 714 by magnetic attraction.

[0071] In this embodiment, the filter cleaning mechanism 9 includes: a driving motor 901, a vertical shaft 902 and two cylinders 907. The driving motor 901 is fixedly installed on the top of the pressure filter housing 401. A small bevel gear 903 is fixedly installed on the output shaft of the driving motor 901. The vertical shaft 902 is rotatably installed on the top of the pressure filter housing 401. A large bevel gear 904 is fixedly installed on the top of the vertical shaft 902. The small bevel gear 903 and the large bevel gear 904 are meshed with each other. The bottom ends of both sides of the vertical shaft 902 are fixedly installed with a rotating plate 906. The other end of the rotating plate 906 is fixedly installed with a compression box 911, and a piston plate 912 is slidably installed in the compression box 911.

[0072] A crankshaft 917 is rotatably installed in the compression box 911, a linkage plate 914 is hinged on one side of the piston plate 912, and the linkage plate 914 is rotatably sleeved on the outer side of the crankshaft 917. A transmission gear 915 is fixedly installed on the top of the crankshaft 917, and an inner gear ring 905 is fixedly installed inside the pressure filter housing 401, and the transmission gear 915 and the inner gear ring 905 are meshed with each other;

[0073] The top and bottom of the compression box 911 are connected to an upper tube 916 and a lower tube 909 respectively. A third one-way valve 910 and a fourth one-way valve 913 are respectively provided in the lower tube 909 and the upper tube 916. The other end of the lower tube 909 is connected to the corresponding cylinder 907. The bottom of the cylinder 907 is connected to multiple water spray pipes 908.

[0074] In this embodiment, a side plate 918 is fixedly installed at one end of the cylinder 907, and the side plate 918 is fixedly installed on one side of the corresponding compression box 911. A positioning ring is fixedly installed at the bottom of the rotating plate 906, and the positioning ring is fixedly sleeved on the outer side of the cylinder 907.

[0075] In this embodiment, the transmission mechanism 8 includes: a transverse shaft 805, a second active pulley 803, a second driven pulley 801 and a second one-way bearing 804. A mounting plate 806 is fixedly installed on the top of the pressure filter housing 401. The transverse shaft 805 is rotatably installed in the mounting plate 806. The rear end of the transverse shaft 805 is fixedly connected to the small bevel gear 903. The front end of the transverse shaft 805 is fixedly installed with the second driven pulley 801. The inner ring of the second one-way bearing 804 is fixedly sleeved on the outer side of the circular shaft 720. The second driven pulley 801 is fixedly installed on the outer ring of the second one-way bearing 804. The second active pulley 803 and the second driven pulley 801 are transmission-installed with the same second belt 802.

[0076] In this embodiment, a bottom plate 723 is fixedly installed at the bottom of the front side of the fixing seat 711, a fourth conductive sheet 725 and a buffer washer 726 are fixedly installed at the top of the bottom plate 723, and a fourth conductive sheet 725 is fixedly installed at the top of the counterweight plate 722. The driving motor 901 adopts a DC motor. The DC motor generates current in the armature through an external voltage to realize output end driving. When the power is off, the magnetic field in the motor disappears, and the armature is no longer driven by the current, so that the small bevel gear 903 can rotate freely.

[0077] The second conductive sheet 710 and the fourth conductive sheet 725 are electrically connected to the positive and negative electrodes of the driving motor 901 , respectively. The first conductive sheet 709 and the third conductive sheet 724 are electrically connected to two ends of a power source, respectively.

[0078] It should be noted that the conduction directions of the first one-way valve 204 and the second one-way valve 305 are both from bottom to top, and the conduction directions of the third one-way valve 910 and the fourth one-way valve 913 are both from top to bottom, so as to realize the one-way conduction of water flow. The first one-way bearing 703 can realize the one-way power transmission between the connecting shaft 701 and the first driving pulley 717. The counterclockwise rotation of the connecting shaft 701 will not drive the first driving pulley 717 to rotate. The second one-way bearing 804 can realize the one-way power transmission between the circular shaft 720 and the second driving pulley 803, that is, the counterclockwise rotation of the circular shaft 720 can drive the second driving pulley 803 to rotate, and the circular shaft 720 will not drive the second driving pulley 803 to rotate when it rotates clockwise. When the slave blade 702 rotates clockwise under the action of the water flow power, it will not drive the second driving pulley 803 to rotate, thereby not driving the vertical shaft 902 to rotate.

[0079] In this embodiment, by closing the first water valve 207, the second water valve 309, the first sewage valve 505, the second sewage valve 405, and the control valve 206, the culture container 101 is filled with water to about the middle of the oil film collection filter 105. According to the principle of communicating vessels, the water levels of the biochemical pool 301 and the oil film remover 201 are also at the same water level as the water level of the culture container 101. By opening the electric control valve 603 and the first switch valve 214 and the second switch valve 307, and closing the first water valve 207 and the second water valve 309, the water pump 601 is started to introduce water into the first negative pressure water pump 202 and the second negative pressure water pump 303 through the U-shaped pipe 602. At this time, the first check valve 204 and the second check valve 305 are in a normally closed state, and the air connecting pipe and the air The air connecting pipe discharges water, the water pump 601 stops working, and the electric control valve 603, the first switch valve 214, and the second switch valve 307 are controlled to be closed, the first water valve 207 and the second water valve 309 are opened, and the water in the first negative pressure water pump 202 enters the breeding container 101 through the first outlet pipe 208 under the action of gravity, and the water in the second negative pressure water pump 303 is introduced into the biochemical pool 301 under the action of gravity, so that a vacuum state appears in the first negative pressure water pump 202 and the second negative pressure water pump 303. At this time, the first check valve 204 and the second check valve 305 are automatically opened, and the atmospheric pressure of the water in the breeding container 101, the biochemical pool 301 and the oil film remover 201 will be higher than the atmospheric pressure of the first negative pressure water pump 202 and the second negative pressure water pump 303. Under the action of pressure, the water in the culture container 101 will pass through the upper floating inlet 1041 and the middle floating inlet 1042 of the floating separation tube 104, and enter the pressure filter inlet pipe 403, the pressure filter shell 401, the pressure filter outlet pipe 404, the biochemical inner water tank 302, the connecting pipe, the second one-way valve 305, the second negative pressure water pump 303, the second outlet pipe 308, and the second water valve 309 in sequence to enter the biochemical pool 301 for biochemical treatment of the water body, and then flow back to the culture container 101 through the isolation net 310 and the water pipe 312 to form a water circulation of the first connecting loop. During the circulation, the floating objects in the water body of the culture container 101 continuously enter the pressure filter shell 401, and are filtered and purified by the second filter net during the period. The water containing harmful substances at the bottom of the tank passes through the substrate isolation net 310, the substrate separation box 103, the substrate filter inlet pipe 502, the substrate primary filter, the substrate filter outlet pipe 503, the pressure filter inlet pipe 403, the pressure filter shell 401, the pressure filter outlet pipe 404, the biochemical inner water tank 302, the connecting pipe, the second one-way valve 305, the second negative pressure water pump 303, the second outlet pipe 308, and the second water valve 309. After the water is biochemically treated, it flows back to the breeding container 101 through the isolation net 310 and the water pipe 312 to form a water circulation of the second connecting loop. In this process, the substrate is filtered and removed by the first filtration. After running for a certain period of time, the first sewage valve 505 is opened to discharge the dirt in the substrate primary filter shell.The water flows from the aquaculture container 101 through the oil film collection filter 105, the oil film introduction pipe 210, the oil film remover 201, the first connecting pipe 203, the first non-return valve 204, the first negative pressure water pump 202, the first outlet pipe 208, and the first water valve 207 back to the aquaculture container 101, forming a water circulation of the third connecting loop. In the oil film remover 201, the oil film water passes through a plurality of lower water-through oil separators 211 and upper water-through countercurrent separators 212, and flows in an "S" shape. The density difference between water and oil film foam is used to achieve oil-water stratification. The upper oil film accumulates for a period of time, and the control valve 206 is opened to discharge the oil film foam. In the aquaculture container 101, the floating object introduction pipe is immersed in the water, which isolates the oil film and foam and prevents the oil film and foam from entering the floating object separation pipe 104;

[0080] The water is input into the breeding container 101 through the water pipe 312 and the first outlet pipe 208, which can push the two shifting blades 702 to rotate and drive the two connecting shafts 701 to rotate clockwise. The connecting shaft 701 drives the first driving pulley 717 to rotate through the first one-way bearing 703. The first driving pulley 717 drives the first driven pulley 705 and the circular shaft 720 to rotate through the first belt 704. The circular shaft 720 drives the rotating shaft 718 to rotate counterclockwise through the meshing transmission of the small gear 721 and the large gear 706. The rotating shaft 718 drives the winding wheel 719 and the ratchet 707 to rotate synchronously. When the winding wheel 719 rotates, it winds up the connecting rope 716 and drives the counterweight plate 722 to move upward. When the ratchet 707 rotates, it pushes the claw 708 to move horizontally and presses the compression spring 721. 13 is compressed, and after the ratchet 707 rotates a certain angle, the claw 708 is reset under the action of the compression spring 713, thereby limiting the reversal of the ratchet 707, so that when water is added to the breeding container 101, the power of the water can be converted into the potential energy of the counterweight plate 722 for storage. During the filtering process of the floating objects by the second filter 402, the pressures on the upper and lower sides of the second filter 402 are monitored by the two pressure sensors 406. When the first filter 504 is blocked by the filtered objects, the pressure monitored by the lower pressure sensor 406 is greater than the pressure monitored by the upper pressure sensor 406, and the signal is transmitted to the controller 408. The controller 408 controls the electromagnet 712 to start, and the electromagnet 712 generates a magnetic force to magnetically attract the iron sheet 714, and drives the claw 708 to start. The claw 708 moves horizontally until the first conductive sheet 709 contacts the second conductive sheet 710, so that the claw 708 is disengaged from the ratchet 707, that is, the fixation of the ratchet 707 is released, and the counterweight plate 722 moves downward under the action of gravity, and drives the winding wheel 719 and the rotating shaft 718 to rotate through the connecting rope 716, and the rotating shaft 718 drives the circular shaft 720 to rotate counterclockwise through the meshing of the large gear 706 and the small gear 721, and the circular shaft 720 drives the second driving pulley 803 to rotate through the second one-way bearing 804, and the second driving pulley 803 drives the second driven pulley 801 to rotate through the second belt 802, and the second driven pulley 801 drives the small bevel gear 903 to rotate through the horizontal shaft 805, and the small bevel gear 903 rotates by engaging with the large bevel gear 9 04 meshing drives the vertical shaft 902 to rotate. While the vertical shaft 902 rotates, it drives the compression box 911 and the transmission gear 915 to perform circular motion through the rotating plate 906. The inner gear ring 905 drives the transmission gear 915 to rotate by meshing with the transmission gear 915, and drives the crankshaft 917 to rotate. The crankshaft 917 drives the piston plate 912 to move back and forth left and right through the linkage rod. When the piston plate 912 moves to the side away from the rotating plate 906, the water in the pressure filter shell 401 enters the compression box 911 through the upper tube 916 and the fourth one-way valve 913. When the piston plate 912 moves in the reverse direction, the water in the compression box 911 is introduced into the cylinder 907 through the lower tube 909 and the third one-way valve 910, and is sprayed out through the water spray pipe 908 at the bottom of the cylinder 907.The second filter screen 402 is flushed by water pressure, and the blockage is flushed downward and deposited on the inner bottom of the pressure filter housing 401. The filter residue is discharged by opening the second drain valve 405. When the gravity potential energy of the counterweight plate 722 is released, the counterweight plate 722 returns to the initial position so that the third conductive sheet 724 contacts the fourth conductive sheet 725. When the two pressure sensors 406 monitor the pressure difference and control the electromagnet 712 to start through the controller 408, the first conductive sheet 709 contacts the second conductive sheet 710, so that the drive motor 901 is powered on and automatically started, thereby driving the small bevel gear 903 to rotate, thereby providing power for the rotation of the vertical shaft 902 to achieve the cleaning of the second filter screen 402.

[0081] It should be further noted that the directions of up, down, left, right, top and bottom mentioned in this document are all in accordance with the instructions. Figure 1 The clockwise and counterclockwise mentioned in this article are based on the instructions. Figure 1 Based on the normal perspective.

[0082] The above is a detailed introduction to a non-powered three-circulation aquaculture system provided by the present invention. Specific embodiments are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A non-powered three-circulation aquaculture system, characterized in that: include: A breeding unit (1) is used to carry water to achieve breeding, and a water power collection and storage mechanism (7) is provided at the front end of the breeding unit (1); A substrate primary filtration unit (5) is used to remove harmful substances at the bottom of the water body; A floating object removal unit (4) is used to remove harmful floating objects in the water body. A filter cleaning mechanism (9) is provided in the floating object removal unit (4). A transmission mechanism (8) is connected between the filter cleaning mechanism (9) and the water power collection and storage mechanism (7); The oil film removal unit (2) is used to remove the oil film and foam harmful substances on the water surface; The combined biochemical unit (3) is used for biochemical treatment of water.

2. The unpowered three-circulation aquaculture system according to claim 1, characterized in that: The breeding unit (1) comprises: a breeding container (101) and a floating object separation pipe (104); a substrate separation box (103) is fixedly installed at the bottom of the breeding container (101); a through hole is opened at the bottom of the breeding container (101); a substrate separation net (102) is fixedly installed in the through hole; the floating object separation pipe (104) is fixedly installed in the substrate separation net (102); and an upper floating object inlet (1041) and a middle floating object inlet (1042) are opened on the outer side of the floating object separation pipe (104); A notch is provided at the top of one side of the culture container (101), and an oil film collecting filter (105) is fixedly installed in the notch.

3. The unpowered three-circulation aquaculture system according to claim 2, characterized in that: The substrate primary filtration unit (5) comprises: a substrate filtration shell (501) and a first filter screen (504), wherein the first filter screen (504) is fixedly installed in the substrate filtration shell (501), and the bottom of one side of the substrate filtration shell (501) is connected to a substrate filtration inlet pipe (502), the other end of the substrate filtration inlet pipe (502) is connected to a substrate separation box (103), the top of the other side of the substrate filtration shell (501) is connected to a substrate filtration outlet pipe (503), and the bottom of the substrate filtration shell (501) is connected to a first sewage valve (505).

4. The unpowered three-circulation aquaculture system according to claim 3 is characterized in that: The floating object removing unit (4) comprises a pressure filter housing (401) and a second filter screen (402), wherein the second filter screen (402) is fixedly installed in the pressure filter housing (401), and a pressure filter inlet pipe (403) is connected to the bottom of one side of the pressure filter housing (401), and the other end of the pressure filter inlet pipe (403) is connected to the bottom end of the floating object separation pipe (104), and a pressure filter outlet pipe (404) is connected to the top of the other side of the pressure filter housing (401), and the other end of the substrate filter outlet pipe (503) is connected to the pressure filter inlet pipe (403), and the bottom of the pressure filter housing (401) is connected to a second sewage valve (405); A stabilizing frame (407) and two pressure sensors (406) are fixedly installed on one side of the pressure filter shell (401), a controller (408) is fixedly connected to the top of the stabilizing frame (407), the pressure sensor (406) is signal-connected to the controller (408), and the breeding container (101) is fixedly connected to the other end of the stabilizing frame (407).

5. The non-powered three-circulation aquaculture system according to claim 4, characterized in that: The oil film removal unit (2) comprises: an oil film remover (201) and a first negative pressure water pump (202); an oil film collection box (209) is fixedly installed on one side of the oil film remover (201); the other end of the oil film collection box (209) is connected to the breeding container (101); the top of one side of the oil film remover (201) is connected to an oil film introduction pipe (210); a plurality of lower water-through oil isolation plates (211) and upper water-through oil isolation plates (212) are fixedly installed inside the oil film remover (201); a countercurrent baffle (212); the other side of the oil film remover (201) is connected to a control valve (206); a first connecting pipe (203) is connected between the oil film remover (201) and the first negative pressure water pump (202); a first one-way valve (204) is arranged on the first connecting pipe (203); a first air conduit (205) is connected to the top of the first negative pressure water pump (202); a first switch valve (214) is arranged in the first air conduit (205); The first negative pressure water lifter (202) is fixedly installed on the top of the oil film remover (201), and a first outlet pipe (208) is connected to the bottom of one side of the first negative pressure water lifter (202), and a first water valve (207) is arranged on the first outlet pipe (208).

6. The unpowered three-circulation aquaculture system according to claim 5, characterized in that: The combined biochemical unit (3) comprises: a biochemical pool (301), a biochemical inner water tank (302) and a second negative pressure water pump (303); an isolation plate (311) and an isolation net (310) are fixedly installed in the biochemical pool (301); the biochemical inner water tank (302) is fixedly installed on one side of the biochemical pool (301); the other end of the pressure filtration outlet pipe (404) is connected to the biochemical inner water tank (302); a second connecting pipe (304) is connected between the biochemical inner water tank (302) and the second negative pressure water pump (303); the second connecting pipe (304) ) is provided with a second one-way valve (305), the second negative pressure water pump (303) is fixedly installed on the top of the biochemical pool (301), the top of the second negative pressure water pump (303) is connected to a second air duct (306), the second air duct (306) is provided with a second switch valve (307), the bottom of one side of the second negative pressure water pump (303) is connected to a second outlet pipe (308), the second outlet pipe (308) is provided with a second water valve (309), and the bottom of one side of the biochemical pool (301) is connected to a water supply pipe (312).

7. The unpowered three-circulation aquaculture system according to claim 6, characterized in that: Also includes: A water supply mechanism (6), the water supply mechanism (6) comprising: a water pump (601) and a U-shaped tube (602), the water outlet of the water pump (601) being connected to the U-shaped tube (602), the two ends of the U-shaped tube (602) being respectively connected to a first negative pressure water pump (202) and a second negative pressure water pump (303), and both ends of the U-shaped tube (602) being provided with electric control valves (603).

8. The non-powered three-circulation aquaculture system according to claim 7, characterized in that: The hydrodynamic collection and storage mechanism (7) comprises: a fixed seat (711), a counterweight plate (722), a rotating shaft (718), a circular shaft (720) and two connecting shafts (701); the connecting shaft (701) is rotatably mounted inside the culture container (101); a shifting blade (702) is fixedly sleeved on the outer side of the connecting shaft (701); the two shifting blades (702) are respectively arranged below the bottom ends of the water delivery pipe (312) and the first outlet pipe (208); a first one-way bearing (703) is fixedly sleeved on the outer front end of the connecting shaft (701); a first driving pulley (717) is sleeved on the outer side of the first one-way bearing (703); the rotating shaft (718) and the circular shaft (720) are both rotatably mounted on the front side of the fixed seat (711); and the fixed seat (711) is fixedly mounted on the front side of the culture container (101); The outer side of the circular shaft (720) is fixedly sleeved with a first driven pulley (705) and a pinion (721); the first driven pulley (705) and the two first driving pulleys (717) are drivenly mounted with the same first belt (704); the outer side of the rotating shaft (718) is fixedly sleeved with a ratchet (707), a large gear (706) and a winding wheel (719); the small gear (721) and the large gear (706) are meshed with each other; the top of the counterweight plate (722) is fixedly mounted with a connecting rope (716); the top of the connecting rope (716) is fixedly mounted on the outer side of the winding wheel (719); the front side of the fixed seat (711) is fixedly mounted with a guide rail (727), a U-shaped frame (715), an electromagnet (712 ) and a second conductive sheet (710), the counterweight plate (722) is slidably sleeved on the outer side of the guide rail (727), a positioning wheel is rotatably installed inside the U-shaped frame (715), and the positioning wheel abuts against the outer side of the connecting rope (716), two square rods are fixedly installed on the front side of the fixed seat (711), and the outer sides of the two square rods are slidably sleeved with the same claw (708), one side of the claw (708) is movably abutted against the outer side of the ratchet (707), and the other side of the claw (708) is fixedly installed with an iron sheet (714), a first conductive sheet (709) and a compression spring (713), the other end of the compression spring (713) is fixedly connected to the fixed seat (711), and the electromagnet (712) is magnetically matched with the iron sheet (714).

9. The non-powered three-circulation aquaculture system according to claim 8, characterized in that: The filter screen cleaning mechanism (9) comprises: a driving motor (901), a vertical shaft (902) and two cylinders (907); the driving motor (901) is fixedly mounted on the top of the pressure filter housing (401); a small bevel gear (903) is fixedly mounted on the output shaft of the driving motor (901); the vertical shaft (902) is rotatably mounted on the top of the pressure filter housing (401); a large bevel gear (904) is fixedly mounted on the top of the vertical shaft (902); the small bevel gear (903) and the large bevel gear (904) are meshed with each other; rotating plates (906) are fixedly mounted on the bottom ends of both sides of the vertical shaft (902); a compression box (911) is fixedly mounted on the other end of the rotating plate (906); a piston plate (912) is slidably mounted in the compression box (911); A crankshaft (917) is rotatably mounted inside the compression box (911), a linkage plate (914) is hingedly connected to one side of the piston plate (912), the linkage plate (914) is rotatably sleeved on the outside of the crankshaft (917), a transmission gear (915) is fixedly mounted on the top of the crankshaft (917), an inner gear ring (905) is fixedly mounted inside the pressure filter housing (401), and the transmission gear (915) and the inner gear ring (905) are meshed with each other; The top and bottom of the compression box (911) are respectively connected to an upper tube (916) and a lower tube (909), and a third one-way valve (910) and a fourth one-way valve (913) are respectively arranged in the lower tube (909) and the upper tube (916). The other end of the lower tube (909) is connected to the corresponding cylinder (907), and the bottom of the cylinder (907) is connected to a plurality of water spray pipes (908).

10. The non-powered three-circulation aquaculture system according to claim 9, characterized in that: A side plate (918) is fixedly mounted on one end of the cylinder (907), and the side plate (918) is fixedly mounted on one side of the corresponding compression box (911). A positioning ring is fixedly mounted on the bottom of the rotating plate (906), and the positioning ring is fixedly sleeved on the outside of the cylinder (907); The transmission mechanism (8) comprises: a transverse shaft (805), a second driving pulley (803), a second driven pulley (801) and a second one-way bearing (804); a mounting plate (806) is fixedly mounted on the top of the pressure filter housing (401); the transverse shaft (805) is rotatably mounted in the mounting plate (806); the rear end of the transverse shaft (805) is fixedly connected to the small bevel gear (903); the front end of the transverse shaft (805) is fixedly mounted with the second driven pulley (801); the inner ring of the second one-way bearing (804) is fixedly sleeved on the outer side of the circular shaft (720); the second driven pulley (801) is fixedly mounted on the outer ring of the second one-way bearing (804); and the second driving pulley (803) and the second driven pulley (801) are transmission-mounted with the same second belt (802); A bottom plate (723) is fixedly mounted on the front bottom of the fixing seat (711), a fourth conductive sheet (725) and a buffer gasket (726) are fixedly mounted on the top of the bottom plate (723), a fourth conductive sheet (725) is fixedly mounted on the top of the counterweight plate (722), a drive motor (901) is a DC motor, the second conductive sheet (710) and the fourth conductive sheet (725) are electrically connected to the positive and negative poles of the drive motor (901), and the first conductive sheet (709) and the third conductive sheet (724) are electrically connected to two ends of a power supply, respectively.

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