Self-cleaning circulating aquarium

Abstract

The invention discloses a self-cleaning circulating aquarium which comprises an aquarium body, a function key is arranged on one side of the top of the aquarium body, and a self-locking assembly is arranged on the side close to the function key; the self-locking assembly comprises a cover plate rotationally connected with the aquarium body, a button column is fixedly arranged at the center position, away from the rotating connecting end, of the cover plate, a through hole is axially formed in the button column, a button rod is slidably connected in the through hole in a sleeved mode, and the periphery of the button rod is sleeved with a spring. Grooves are symmetrically formed in the two sides of the interior of the bottom end of the button column, steel balls capable of rolling in the radial direction are embedded in the two grooves, and the inner sides of the steel balls abut against the conical surface of the lower end of the button rod. Comprehensive optimization of safety protection, automatic cleaning, water quality management and intelligent control of the aquarium is achieved, and the reliability, the cleaning efficiency and the use convenience of the system are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of aquaculture equipment, in particular to a self-cleaning circulating aquarium. Background Art

[0002] Existing aquariums are mainly used to raise ornamental fish, aquatic plants and other aquatic organisms, and are usually composed of a transparent box, a filtration system, a lighting device and a temperature control device.

[0003] Aquariums are currently widely used in ornamental aquaculture, but traditional aquariums have many shortcomings in cleaning and maintenance, water quality management and automated operation, mainly manifested in: poor reliability of cover locking, lack of efficient self-locking mechanism, and easy to open accidentally due to external force; low sediment cleaning efficiency, traditional filter plate structure prone to dirt accumulation and difficult to completely remove; water change process relies on manual intervention, lack of intelligent water level monitoring and automatic circulation system; the filtration system has single function, insufficient filter material combination and anti-backflow design, affecting the water quality treatment effect.

[0004] Therefore a self-cleaning circulating aquarium is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a self-cleaning circulating aquarium to solve the problems raised in the above background technology that the current traditional aquariums have deficiencies in self-locking sealing, dirt cleaning, intelligent water changing and filtration efficiency.

[0006] To achieve the above object, the present invention provides the following technical solution: a self-cleaning circulating aquarium, comprising an aquarium body, a function button being provided on one side of the top of the aquarium body, and a self-locking component being provided on a side close to the function button; The self-locking assembly includes a cover plate rotatably connected to the aquarium body, a button column fixedly provided at a center position of the cover plate away from the rotation connection end, a through hole axially opened inside the button column, a button rod slidably sleeved in the through hole, and a spring sleeved around the outer circumference of the button rod; The bottom end of the button column is symmetrically provided with grooves on both sides, and radially rolling steel balls are embedded in the two grooves. The inner sides of the steel balls abut against the conical surface at the lower end of the button rod, and the outer sides of the steel balls abut against the inner wall of the limit block sleeved on the bottom end of the button column. A cleaning assembly is provided on the bottom side of the interior of the aquarium body, including a filter plate and a concave funnel fixedly arranged horizontally inside the aquarium body, a vibrator is fixedly connected to the center of the bottom of the filter plate by a cable tie, the concave funnel is upwardly opened below the filter plate and the outer side is fixedly connected to the inner wall of the aquarium body, a sewage pipe is vertically connected to the center of the bottom of the concave funnel, a sewage valve and a hose are sequentially connected in series at the water outlet end of the sewage pipe, the water outlet end of the hose extends to the interior of the sewage tank, and a sewage level sensor is provided on one side of the top of the sewage tank; A water changing assembly is provided on one side of the aquarium body, including a clean water storage tank fitted with the inner side of the bottom of the aquarium body, a water inlet end of a clean water injection pump is connected to the top side of the clean water storage tank through a water pipe, the clean water injection pump is fixed to one side of the inner wall of the aquarium body and an upper water pipe is fixedly connected to the output end thereof, and the water outlet end of the upper water pipe extends to the top side of the aquarium body; The clean water storage tank is connected to the water inlet end of the clean water pump via a water pipe on one side adjacent to the clean water injection pump. The clean water pump is fixed to the inner wall of the aquarium body and its output end is fixedly connected to the water supply pipe. The water outlet end of the water supply pipe is connected to the first clean sewage pipe via a tee diversion. The first clean sewage pipe is provided with water outlet holes at both ends and is fixedly connected to the second clean sewage pipe via an elbow. The first clean sewage pipe and the second clean sewage pipe are both fixed to the surface of the concave funnel via a cable tie. A circulating water pump is provided above the clean and sewage pump, the circulating water pump is fixed to the inner wall of the aquarium body and its output end is connected to the filter tank through a water pipe, the outer side of the filter tank is fixedly connected to the inner wall of the aquarium body and its water outlet is communicated with the inside of the aquarium body; The function buttons, sewage level sensor, clean water injection pump, clean sewage pump and circulating water pump are all electrically connected to a circuit board arranged below the filter tank.

[0007] Preferably, the rotatable connection end of the cover plate is rotatably connected to the aquarium body via a rotating shaft, and a lighting lamp is fixedly mounted at the inner center of the cover plate, and the lighting lamp is electrically connected to the circuit board.

[0008] Preferably, the side wall of the button column is fixedly connected to the inner side of the top of the aquarium body, the limit block is clamped and fixed to the inner wall of the aquarium body, and the inner wall of the limit block is provided with an arc-shaped concave surface that cooperates with the steel ball. When the cover is closed, the steel ball is squeezed by the conical surface of the button rod and extends radially, forming a self-locking with the limit block.

[0009] Preferably, a sedimentation chamber is formed between the filter plate and the concave funnel, a sealing ring is provided at the connection between the drain pipe and the concave funnel, and the drain valve is a solenoid valve and is electrically connected to the circuit board.

[0010] Preferably, two rows of water discharge holes are provided on the surfaces of the first and second sewage cleaning pipes, wherein the water discharge direction of one row is inclined toward the inner wall of the concave funnel, and the water discharge direction of the other row is toward the filter plate.

[0011] Preferably, the filter tank is filled with an activated carbon layer, a biological filter cotton layer and a ceramic ring layer in sequence, a detachable and cleanable mesh partition is provided at the bottom of the filter tank, and an anti-backflow baffle is provided at the water outlet of the filter tank.

[0012] Preferably, a non-slip rubber pad is provided at the joint between the bottom of the sewage tank and the clean water storage tank and the inner wall of the aquarium body, and the sewage level sensor is a float type sensor.

[0013] Preferably, a first water level sensor is provided at the water inlet of the filter tank, and a second water level sensor is provided on the side wall of the aquarium body below the water outlet end of the upper water pipe. The first water level sensor and the second water level sensor are both electrically connected to the circuit board. The second water level sensor is an ultrasonic water level sensor, and its installation height is lower than the water outlet end of the upper water pipe and higher than the upper surface of the filter plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the self-cleaning circulating aquarium achieves comprehensive optimization of aquarium safety protection, automatic cleaning, water quality management and intelligent control through the high integration of a mechanical self-locking mechanism, vibration cleaning, intelligent water circulation control and multi-stage filtration device, significantly improving the reliability, cleaning efficiency and ease of use of the system. The specific contents are as follows: 1.Safety lock The cover is mechanically locked automatically through an innovative self-locking assembly. The wedge-shaped structure of the steel ball and the conical push-button lever, combined with the arc-shaped concave design of the stopper, creates a radial self-locking effect under the action of the spring preload. This significantly improves the closing stability of the cover and effectively prevents accidental opening caused by external impact. At the same time, the spring provides a buffer to ensure smooth operation, balancing safety and user experience. 2. Efficient cleaning The vibrating filter plates utilize high-frequency micro-vibration to quickly loosen and detach sediment adhering to the filter pore surfaces. Compared to traditional static filter plates, they can more thoroughly prevent dirt accumulation and significantly improve cleaning effectiveness. The concave funnel and inclined cleaning pipe form a cyclone flushing system. The inclined design of the water outlet creates a tangential water flow. Combined with the solenoid-controlled sewage pipe, it can efficiently flush and completely remove sediment. At the same time, the sewage tank is equipped with a float-type liquid level sensor to achieve intelligent sewage capacity monitoring. 3. Water cycle management Through the coordinated monitoring of two water level sensors (the first water level sensor monitors the water level in the filter tank, and the second ultrasonic water level sensor detects the water level in the main tank), combined with the circuit to achieve the linkage control of the three water pumps (clean water injection pump, clean sewage pump, and circulating water pump), the water exchange process is fully automated, significantly reducing the need for manual intervention; 4. Multifunctional filtration The filter tank uses activated carbon, biological filter cotton and ceramic ring three-level filter materials arranged in layers, combined with mesh partitions for easy maintenance and cleaning, and anti-backflow baffle design to prevent water backflow, significantly improving nitrification efficiency and water quality stability; 5. Functional integration Through a unified circuit board control system, the lighting control, cleaning system and circulation device are highly integrated, and users can achieve convenient human-computer interaction simply by pressing the function buttons; the system responds quickly and operates simply and intuitively, significantly improving ease of use. Compared with traditional split designs, it has better overall coordination and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the aquarium body of the present invention; Figure 3 This is a schematic diagram of the structure of the filter plate of the present invention viewed from above; Figure 4 This is a schematic diagram of the top view of the concave funnel of the present invention; Figure 5 This is a schematic diagram of the internal structure of the aquarium body of the present invention; Figure 6 This is a schematic diagram of the internal side structure of the aquarium body of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the cross-sectional structure at point B in the middle; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point A in the middle.

[0016] In the figure: 1. Aquarium body; 2. Function button; 3. Self-locking component; 301. Cover; 302. Button column; 303. Through hole; 304. Button rod; 305. Spring; 306. Groove; 307. Steel ball; 308. Limit block; 309. Lighting lamp; 4. Cleaning component; 401. Filter plate; 402. Vibrator; 403. Concave funnel; 404. Drain pipe; 405. Drain valve; 406. Hose; 407. Sewage tank; 408. Sewage level sensor; 5. Water changing component; 501. Clean water storage tank; 502. Clean water injection pump; 503. Water supply pipe; 504. Clean sewage pump; 505. Water supply pipe; 506. First clean sewage pipe; 507. Second clean sewage pipe; 508. Circulating water pump; 509. Filter tank; 510. Circuit board. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0018] See also Figure 1-8 The present invention provides a technical solution: a self-cleaning circulating aquarium, comprising an aquarium main body 1, a function button 2 is provided on one side of the top of the aquarium main body 1, and a self-locking component 3 is provided on the side close to the function button 2; the self-locking component 3 comprises a cover plate 301 rotatably connected to the aquarium main body 1, a button column 302 is fixedly provided at a center position away from the rotating connection end of the cover plate 301, a through hole 303 is axially opened inside the button column 302, a button rod 304 is slidably sleeved in the through hole 303, and a spring 305 is sleeved on the outer periphery of the button rod 304; grooves 306 are symmetrically provided on both sides of the bottom end of the button column 302, and radially rolling steel balls 307 are embedded in the two grooves 306, the inner side of the steel ball 307 abuts against the conical surface of the lower end of the button rod 304, and the outer side of the steel ball 307 abuts against the inner wall of a limit block 308 sleeved on the bottom end of the button column 302; The self-locking component 3 adopts an innovative mechanical structure design. The conical surfaces of the button column 302 and the button rod 304 cooperate to drive the steel ball 307 to lock radially. Under the preload of the spring 305, it forms a stable self-locking with the limit block 308. It has significant advantages such as high reliability, convenient operation (one-button unlocking), compact structure (modular design facilitates assembly), safety and durability. It effectively solves the problems of traditional locks such as easy failure and inconvenient operation, and greatly improves the safety and user experience of the aquarium cover. A cleaning assembly 4 is provided on the bottom side of the interior of the aquarium body 1, comprising a filter plate 401 and a concave funnel 403 fixedly mounted horizontally within the aquarium body 1. A vibrator 402 is fixedly connected to the center of the bottom of the filter plate 401 via a cable tie. The concave funnel 403 opens upward and is positioned below the filter plate 401, with the outer side fixedly connected to the inner wall of the aquarium body 1. A drain pipe 404 is vertically connected to the center of the bottom of the concave funnel 403. A drain valve 405 and a hose 406 are sequentially connected in series at the outlet end of the drain pipe 404. The outlet end of the hose 406 extends into the interior of a sewage tank 407, and a sewage level sensor 408 is provided on one side of the top of the sewage tank 407. The cleaning component 4 adopts the collaborative design of the vibrating filter plate 401 and the concave funnel 403, which has the following outstanding advantages: High-efficiency cleaning: The vibrator 402 (model: YZUL-0.55-4 low-frequency vibration motor, rated frequency range 5-15Hz) adopts a low-frequency motor design. The mechanical waves generated in this frequency band can form non-scare stimulation through the water medium, effectively avoiding disturbing the fish community in the nearby range; the vibrator 402 drives the filter plate to vibrate at high frequency, effectively preventing dirt from adhering, and the cleaning efficiency is greatly improved compared with the traditional static filter plate; the concave funnel 4 03 forms a sedimentation chamber, which, in conjunction with the inclined sewage pipe 404 and electromagnetic sewage valve 405, enables rapid collection and automatic discharge of waste. Anti-clogging design: Vibration keeps the filter holes unobstructed, avoiding the clogging problem of traditional filter plates 401. Intelligent monitoring: Sewage level sensor 408 monitors the sewage tank capacity in real time to ensure timely cleaning. The distance between the concave funnel 403 and the filter plate 401 has been optimized through fluid mechanics to ensure a more reasonable sewage settling path. Therefore, through the synergistic effect of vibration cleaning and sewage discharge, this component achieves efficient and automated cleaning of the aquarium bottom, significantly reducing the frequency of manual maintenance. A water exchange assembly 5 is provided on one side of the aquarium body 1, including a clean water storage tank 501 that is fitted against the inner side of the bottom of the aquarium body 1. The top side of the clean water storage tank 501 is connected to the water inlet end of a clean water injection pump 502 via a water pipe. The clean water injection pump 502 is fixed to one side of the inner wall of the aquarium body 1 and its output end is fixedly connected to an upper water pipe 503. The water outlet end of the upper water pipe 503 extends to the top side of the aquarium body 1. The clean water storage tank 501 is nestled snugly along the bottom inner side of the aquarium body 1. Made of transparent acrylic, it facilitates observation of the water level and features anti-slip rubber pads for enhanced stability. The clean water injection pump 502 is a 12V DC, low-noise submersible pump, rigidly secured to the inner wall of the aquarium via a mounting bracket. Its output end is flange-connected to the water supply pipe 503, ensuring a secure and reliable connection. The water supply pipe 503 is arranged vertically along the inner wall of the aquarium, with its outlet extending to the top and employing a diffuser design. Combined with a flow control valve, the water injection rate can be precisely controlled, minimizing water flow impact and facilitating observation of the injection status. This component significantly improves space utilization through optimized layout, maintaining a compact and aesthetically pleasing overall structure. Rigid fixings and flange connections ensure stable water supply. The user-friendly transparent water tank design and detachable connection structure significantly enhance ease of operation and maintenance. Anti-slip rubber pads further enhance installation stability, a low-noise water pump improves user experience, and a flow control valve enables precise regulation of the water injection flow. These results enable this water exchange component to achieve efficient, stable, and environmentally friendly automated water exchange within a limited space. The clean water storage tank 501 is connected to the water inlet end of the clean water pump 504 via a water pipe on one side adjacent to the clean water injection pump 502. The clean water pump 504 is fixed to the inner wall of the aquarium body 1 and its output end is fixedly connected to the water supply pipe 505. The water outlet end of the water supply pipe 505 is connected to the first clean water pipe 506 via a three-way diversion. The first clean water pipe 506 has water outlet holes at both ends and is fixedly connected to the second clean water pipe 507 via an elbow. The first clean water pipe 506 and the second clean water pipe 507 are both fixed to the surface of the concave funnel 403 by cable ties. The clean water pump 504 uses a 24V DC corrosion-resistant submersible centrifugal pump, which is fixed to the water supply pipe 505 via a flange connection to form a stable power output system. The outlet of the water supply pipe 505 is connected to the first and second clean water pipes 506 and 507 through a three-way pipe fitting with built-in guide fins. The two clean water pipes are made of stainless steel and are firmly fixed to the surface of the concave funnel 403 with silicone-coated 304 stainless steel tie wraps, forming a circular flushing loop. The inclined water outlet holes on the clean water pipes generate tangential jets, forming a vortex effect within the concave funnel 403, effectively separating sediment from the inner wall and converging it at the sewage outlet. A three-way diverter ensures uniform water distribution, and the flange connection ensures pipeline stability. The design of sharing the clean water storage tank 501 improves space utilization. A circulating water pump 508 is provided above the clean water pump 504. The circulating water pump 508 is fixed to the inner wall of the aquarium body 1 and its output end is connected to the filter tank 509 through a water pipe. The outer side of the filter tank 509 is fixedly connected to the inner wall of the aquarium body 1 and its water outlet is connected to the inside of the aquarium body 1. The circulating filtration system achieves efficient and stable water purification through an innovative modular design. The circulating water pump 508 utilizes a variable frequency energy-saving design and is vertically mounted on a seismic-resistant bracket at a preset position above the clean and dirty water pump 504, creating a space-optimized, layered layout. Its output is connected to a pressure-resistant water pipe via a quick-release connector, forming a direct-connect water system with the filter tank 509, significantly shortening the water flow path. The filter tank 509 is constructed of transparent polycarbonate and rigidly bolted to the load-bearing frame of the housing. Inside, a 2mm-diameter 304 stainless steel mesh baffle, a ceramic ring layer, a biological filter cotton layer, and an activated carbon layer are arranged from bottom to top, forming a three-stage filtration system that synergizes physical, biological, and chemical processes. This system offers multiple advantages: high spatial integration and reduced lateral footprint; a specially designed trumpet-shaped outlet with a silicone anti-backflow baffle ensures uniform water flow and prevents backflow. Function button 2, sewage level sensor 408, clean water injection pump 502, clean sewage pump 504 and circulating water pump 508 are all electrically connected to the circuit board 510 located below the filter tank 509; The circuit board 510 is integrated into a waterproof compartment below the filter tank 509. Its surface is equipped with standardized electrical interfaces corresponding to various functional components. Function button 2 is connected to the input terminal of the circuit board 510 via a waterproof cable to transmit user commands. The sewage level sensor 408 is connected to the analog signal acquisition terminal of the circuit board 510 using a three-wire connection method. The clean water injection pump 502, clean sewage pump 504, and circulating water pump 508 are respectively connected to the power output terminal of the circuit board 510 via relay modules. The operating status of each pump is monitored in real time by the circuit board 510. The circuit board 510 has a built-in microprocessor and power management unit, which coordinate the start and stop timing and operating parameters of each actuator through a preset program. The rotatable connection end of the cover 301 is rotatably connected to the aquarium body 1 via a rotating shaft. A lighting lamp 309 is fixedly installed at the inner center of the cover 301. The lighting lamp 309 is electrically connected to the circuit board 510. The stainless steel hinge connection structure with a built-in damper not only ensures smooth and stable opening and closing of the cover 301, but also enables it to hover at any angle while avoiding the need for additional space within the aquarium. A waterproof LED light 309, integrated centrally on the inside of the cover and connected to the circuit board 510 via concealed wiring, ensures uniform light coverage of the aquarium area while effectively preventing the risk of water vapor erosion. The PWM dimming module on the circuit board 510 supports timing and gradual on / off functions, allowing users to conveniently adjust lighting parameters through a unified interface. This design seamlessly integrates the mechanical structure with the lighting system, achieving intelligent coordination between the cover opening operation and the lighting function within a limited space. This not only enhances ease of use and electrical safety, but also maintains the overall aesthetics and harmony of the aquarium. The side wall of the button column 302 is fixedly connected to the inner side of the top of the aquarium body 1, and the limit block 308 is fixedly engaged with the inner wall of the aquarium body 1. The inner wall of the limit block 308 is provided with an arc-shaped concave surface that cooperates with the steel ball 307. When the cover 301 is closed, the steel ball 307 is squeezed radially by the conical surface of the button rod 304 and forms a self-locking relationship with the limit block 308. The self-locking assembly achieves efficient and reliable locking through precise mechanical design. A 440C stainless steel ball 307 is used in conjunction with the mirror-polished arc-shaped concave surface of a stopper 308, creating a stable surface-contact self-locking mechanism under the action of the tapered surface of the button rod 304. The innovative snap-on fixing structure and 316 stainless steel spring 305 eliminate the risk of thread loosening. The design of quickly releasing the cover 301 by pressing the button rod 304 in one direction not only conforms to ergonomic principles but also optimizes space utilization through a sidewall-fixed connection. This self-locking assembly organically combines mechanical optimization, material science, and spatial design to achieve the multiple advantages of high reliability, long life, and convenient operation in a compact structure. A sedimentation chamber is formed between the filter plate 401 and the concave funnel 403. A sealing ring is provided at the connection between the drain pipe 404 and the concave funnel 403. The drain valve 405 is a solenoid valve and is electrically connected to the circuit board 510. The sedimentation and drainage system utilizes a closed sedimentation chamber structure consisting of a filter plate 401 and a concave funnel 403. The 15° inclined sidewall design effectively promotes dirt accumulation and significantly improves solid-liquid separation. Fluororubber sealing rings are installed at the connection of the drainage pipe 404 to ensure the system maintains a reliable seal under water pressure. The intelligent electromagnetic drainage valve 405 works in conjunction with the circuit board 510, providing a fast response and supporting automatic drainage based on timed or water quality sensing. The modular quick-disassembly design facilitates maintenance and cleaning, making the sedimentation and drainage process efficient, automated, and reliable. The first cleaning pipe 506 and the second cleaning pipe 507 are provided with two rows of water discharge holes on their surfaces, one row of which is inclined toward the inner wall of the concave funnel 403, and the other row of which is inclined toward the filter plate 401; The evenly distributed water outlets on the surfaces of the first and second cleaning pipes 506 and 507 are inclined at 30 to 45 degrees. One of the outlets forms a tangential jet, generating a strong swirling effect on the inner wall of the concave funnel 403, rapidly stripping away sediment. The other outlet sprays at an angle toward the filter plate 401, backwashing the filter plate surface, clearing blockages and improving filtration efficiency. The two rows of outlets work synergistically to ensure coverage of all blind spots during the cleaning process, significantly improving the long-term operational stability of the device. Therefore, through the scientific hole layout and optimized spray angle, this cleaning pipe structure achieves a comprehensive, efficient, and energy-saving automated cleaning effect while ensuring long-term patency. The filter tank 509 is filled with an activated carbon layer, a biological filter cotton layer and a ceramic ring layer in sequence. A removable and cleanable mesh partition is provided at the bottom of the filter tank 509, and an anti-backflow baffle is provided at the water outlet of the filter tank 509. The multi-stage filtration system utilizes three layers of composite filter media: the upper layer is equipped with a high-performance activated carbon layer to effectively remove dissolved impurities in the water; the middle layer is equipped with a dual-function biological filter cotton layer, which not only physically filters suspended particles but also provides a carrier for the attachment of beneficial microorganisms; the lower layer is equipped with a porous ceramic ring layer, creating an ecological environment suitable for the reproduction of nitrifying bacteria, forming a synergistic comprehensive filtration system; the bottom is equipped with a removable mesh partition made of corrosion-resistant metal to facilitate daily maintenance operations, and the specially designed anti-backflow device at the water outlet not only protects the integrity of the filter media structure but also maintains the long-term stable filtration performance of the system. Through optimized material combination and modular structural design, this filtration system not only ensures excellent purification effect, but also greatly improves the system's ease of maintenance and operational reliability. The bottom of the sewage tank 407 and the clean water storage tank 501 are provided with anti-skid rubber pads at the joints with the inner wall of the aquarium body 1, and the sewage level sensor 408 is a float type sensor; The non-slip rubber pad effectively prevents displacement of the water storage container, ensuring stable operation of the equipment. The rubber material has excellent shock absorption and buffering properties, reducing vibration and noise during operation of the water pump. The float sensor has a simple and reliable structure, with a liquid level detection accuracy of ±1mm and is not affected by water turbidity. The sensor uses a mechanical trigger, which is more corrosion-resistant than electronic sensors and has a longer service life, ensuring long-term stable operation in humid environments. A first water level sensor is provided at the water inlet of the filter tank 509, and a second water level sensor is provided on the side wall of the aquarium body 1 below the water outlet end of the upper water pipe 503. Both the first and second water level sensors are electrically connected to the circuit board 510. The second water level sensor is an ultrasonic water level sensor, which is installed at a height lower than the water outlet end of the upper water pipe 503 and higher than the upper surface of the filter plate 401. The first water level sensor uses a photoelectric method to monitor the water inflow into the filter tank 509 in real time, and the second water level sensor (ultrasonic) detects the water level in the main box. Dual data feedback ensures accurate triggering of water replenishment and drainage actions; the second water level sensor is installed at a height lower than the water outlet end of the water supply pipe 503, which can cut off the water pump in advance when the water level rises abnormally to prevent water overflow; the second water level sensor is set above the filter plate 401 to ensure that the minimum water level always covers the filter material to prevent dry burning damage; the two sensor signals are compared and analyzed by the circuit board 510, and the start and stop timing of the clean water injection pump 502 and the circulating water pump 508 are automatically coordinated.

[0019] Working Principle: Before using this self-cleaning circulating aquarium, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 8 As shown, the circuit board 510 integrates the control function button 2, the water level sensor, the water pump and the drain valve, realizing one-touch operation; the user can select the cleaning, water changing or circulation mode through the function button 2, and the system automatically adjusts the start and stop of the water pump, the opening and closing of the drain valve and the switch of the lighting 309 according to the sensor feedback, realizing intelligent management of the whole process and significantly reducing the need for manual intervention; When the bottom of the aquarium body 1 needs to be cleaned: the filter plate 401 generates high-frequency micro-vibration driven by the vibrator 402, so that the dirt attached to the surface of the filter hole is loosened and falls off, avoiding the problem of easy clogging of traditional static filter plates; the fallen dirt settles into the concave funnel 403 under the action of gravity, forming a sedimentation chamber; when cleaning, the clean water pump 504 is started, and the water flows through the water supply pipe 505 to the first cleaning pipe 506 and the second cleaning pipe 507, and forms a vortex through the inclined water outlet to flush the inner wall of the concave funnel 403, accelerating the accumulation of dirt; after the drain valve 405 is opened, the dirt is discharged into the sewage tank 407 through the drain pipe 404 and the hose 406; the sewage level sensor 408 monitors the sewage tank level in real time. When the set threshold is reached, the system prompts to clean the sewage, ensuring the intelligent sewage discharge process; At the same time, the water exchange process is collaboratively controlled by the clean water injection pump 502, the clean water pump 504, and the circulating water pump 508. When the second water level sensor (ultrasonic) detects that the aquarium water level is lower than the set value, the clean water injection pump 502 starts to inject water from the clean water storage tank 501 into the aquarium through the water supply pipe 503. When the water level is too high, the clean water injection pump 502 stops working, while the circulating water pump 508 continuously pumps the water in the aquarium to the filter tank 509. After multi-stage filtration through the activated carbon layer, biological filter cotton layer, and ceramic ring layer, the purified water flows back to the aquarium through the anti-backflow baffle, forming a circulating purification system. The first water level sensor monitors the water level in the filter tank to prevent the water pump from drying out, ensuring safe operation of the system. Secondly, the cover 301 is rotatably connected to the aquarium body 1 through a rotating shaft. When closed, the button rod 304 is pre-tightened by the spring 305, and the conical surface at its lower end pushes the steel ball 307 to move radially outward, so that the steel ball 307 is in close contact with the arc-shaped concave surface of the inner wall of the limit block 308, forming a mechanical self-locking; when the cover needs to be opened, press the button rod 304, and when the steel ball 307 loses the extrusion of the conical surface and retracts into the groove 306, the self-locking state is released, and the cover can be flipped freely; this structure ensures that the cover has a high impact resistance in the closed state, prevents accidental opening by external force, and is easy to operate, combining safety and user experience.

[0020] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A self-cleaning circulating aquarium, comprising an aquarium body (1), characterized in that: A function button (2) is provided on one side of the top of the aquarium body (1), and a self-locking component (3) is provided on the side close to the function button (2); The self-locking assembly (3) comprises a cover plate (301) rotatably connected to the aquarium body (1); a button column (302) is fixedly provided at a central position of the cover plate (301) away from the rotation connection end; a through hole (303) is axially opened inside the button column (302); a button rod (304) is slidably sleeved in the through hole (303); and a spring (305) is sleeved around the outer periphery of the button rod (304); Grooves (306) are symmetrically provided on both sides of the bottom of the button column (302), and radially rolling steel balls (307) are embedded in the two grooves (306). The inner sides of the steel balls (307) abut against the conical surface of the lower end of the button rod (304), and the outer sides of the steel balls (307) abut against the inner wall of a limit block (308) sleeved on the bottom end of the button column (302); A cleaning assembly (4) is provided on the bottom side of the aquarium body (1), comprising a filter plate (401) and a concave funnel (403) fixedly arranged horizontally inside the aquarium body (1); a vibrator (402) is fixedly connected to the center of the bottom of the filter plate (401) via a tie; the concave funnel (403) is opened upward and is arranged below the filter plate (401) and the outer side is fixedly connected to the inner wall of the aquarium body (1); a sewage pipe (404) is vertically connected to the center of the bottom of the concave funnel (403); a sewage valve (405) and a hose (406) are sequentially connected in series at the water outlet end of the sewage pipe (404); the water outlet end of the hose (406) extends to the inside of the sewage tank (407); and a sewage level sensor (408) is provided on one side of the top of the sewage tank (407); A water changing assembly (5) is provided on one side of the aquarium body (1), comprising a clean water storage tank (501) arranged in contact with the inner side of the bottom of the aquarium body (1); a water inlet end of a clean water injection pump (502) is connected to the top side of the clean water storage tank (501) via a water pipe; the clean water injection pump (502) is fixed to one side of the inner wall of the aquarium body (1) and an output end thereof is fixedly connected to an upper water pipe (503); and a water outlet end of the upper water pipe (503) extends to the top side of the aquarium body (1); The clean water storage tank (501) is connected to the water inlet of a clean water pump (504) via a water pipe on one side adjacent to the clean water injection pump (502). The clean water pump (504) is fixed to the inner wall of the aquarium body (1) and its output end is fixedly connected to a water supply pipe (505). The water outlet of the water supply pipe (505) is connected to a first clean water pipe (506) via a three-way diversion. Both ends of the first clean water pipe (506) are provided with water outlet holes and are fixedly connected to a second clean water pipe (507) via an elbow. The first clean water pipe (506) and the second clean water pipe (507) are both fixed to the surface of the concave funnel (403) via a cable tie. A circulating water pump (508) is provided above the clean water pump (504), the circulating water pump (508) being fixed to the inner wall of the aquarium body (1) and having its output end connected to a filter tank (509) via a water pipe, the outer side of the filter tank (509) being fixedly connected to the inner wall of the aquarium body (1) and having its water outlet communicating with the interior of the aquarium body (1); The function button (2), the sewage level sensor (408), the clean water injection pump (502), the clean sewage pump (504) and the circulating water pump (508) are all electrically connected to a circuit board (510) provided below the filter tank (509).

2. The self-cleaning circulating aquarium according to claim 1, characterized in that: The rotating connection end of the cover plate (301) is rotatably connected to the aquarium body (1) via a rotating shaft. A lighting lamp (309) is fixedly mounted at the inner center of the cover plate (301), and the lighting lamp (309) is electrically connected to the circuit board (510).

3. The self-cleaning circulating aquarium according to claim 1, characterized in that: The side wall of the button column (302) is fixedly connected to the inner side of the top of the aquarium body (1), and the limit block (308) is fixedly engaged with the inner wall of the aquarium body (1). The inner wall of the limit block (308) is provided with an arc-shaped concave surface that cooperates with the steel ball (307). When the cover plate (301) is closed, the steel ball (307) is squeezed by the conical surface of the button rod (304) and extends radially, forming a self-locking relationship with the limit block (308).

4. The self-cleaning circulating aquarium according to claim 1, characterized in that: A sedimentation chamber is formed between the filter plate (401) and the concave funnel (403), a sealing ring is provided at the connection between the sewage pipe (404) and the concave funnel (403), and the sewage valve (405) is a solenoid valve and is electrically connected to the circuit board (510).

5. The self-cleaning circulating aquarium according to claim 1, characterized in that: Two rows of water discharge holes are provided on the surface of the first cleaning pipe (506) and the second cleaning pipe (507), wherein the water discharge direction of one row is inclined toward the inner wall of the concave funnel (403), and the water discharge direction of the other row is toward the filter plate (401).

6. The self-cleaning circulating aquarium according to claim 1, characterized in that: The filter tank (509) is filled with an activated carbon layer, a biological filter cotton layer, and a ceramic ring layer in sequence. A removable and cleanable mesh partition is provided at the bottom of the filter tank (509), and an anti-backflow baffle is provided at the water outlet of the filter tank (509).

7. The self-cleaning circulating aquarium according to claim 1, characterized in that: Anti-skid rubber pads are provided at the joints between the bottoms of the sewage tank (407) and the clean water storage tank (501) and the inner wall of the aquarium body (1), and the sewage level sensor (408) is a float-type sensor.

8. The self-cleaning circulating aquarium according to claim 1, characterized in that: A first water level sensor is provided at the water inlet of the filter tank (509), and a second water level sensor is provided on the side wall of the aquarium body (1) below the water outlet end of the upper water pipe (503). The first water level sensor and the second water level sensor are both electrically connected to the circuit board (510). The second water level sensor is an ultrasonic water level sensor, and its installation height is lower than the water outlet end of the upper water pipe (503) and higher than the upper surface of the filter plate (401).

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