Self-cleaning recirculating aquarium

Abstract

The utility model discloses a kind of self-cleaning circulating aquariums, including aquarium main body, the side of aquarium main body top is equipped with function button, the side close to function button is equipped with self-locking assembly;The self-locking assembly includes the cover plate rotationally connected with aquarium main body, the center position of the cover plate away from rotationally connected end is fixed with button post, the through-hole is axially opened in the button post inside, sliding sleeve is connected with button rod in the through-hole, spring is peripherally sleeved in the button rod;The recess is symmetrically opened in the inside two sides of button post bottom end, two the recess is embedded and can radially roll steel ball, the inside of steel ball and button rod lower end conical surface abut, through the high integration of mechanical self-locking mechanism, vibration cleaning, intelligent water circulation control and multistage filter device, the overall optimization of aquarium safety protection, automatic cleaning, water quality management and intelligent control is realized, the reliability, cleaning efficiency and use convenience of system are significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of aquarium equipment technology, specifically a self-cleaning circulating aquarium. Background Technology

[0002] Existing aquariums are mainly used for keeping ornamental fish, aquatic plants and other aquatic organisms. They usually consist of a transparent tank, a filtration system, lighting devices and temperature control equipment.

[0003] Aquariums are widely used in ornamental aquaculture, but traditional aquariums have many shortcomings in terms of cleaning and maintenance, water quality management, and automated operation. These shortcomings include: poor reliability of the cover locking mechanism, lack of efficient self-locking mechanism, and easy accidental opening due to external force; low efficiency of sediment removal, with traditional filter plate structures easily accumulating dirt and difficult to remove completely; reliance on manual intervention in water changes, lack of intelligent water level monitoring and automatic circulation system; and limited functionality of the filtration system, with insufficient filter media combination and backflow prevention design, affecting water quality treatment effect.

[0004] Therefore, a self-cleaning circulating aquarium is proposed to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a self-cleaning circulating aquarium to solve the problems mentioned in the background art regarding the shortcomings of traditional aquariums in terms of self-locking sealing, dirt removal, intelligent water changing, and filtration efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-cleaning circulating aquarium, including an aquarium body, wherein a function button is provided on one side of the top of the aquarium body, and a self-locking component is provided on the side near the function button;

[0007] The self-locking assembly includes a cover plate rotatably connected to the aquarium body. A button post is fixedly provided at the center position of the cover plate away from the rotatable connection end. A through hole is axially opened inside the button post. A button rod is slidably sleeved in the through hole. A spring is sleeved on the outer periphery of the button rod.

[0008] The button post has symmetrical grooves on both sides inside the bottom end. A radially rolling steel ball is embedded in the two grooves. The inner side of the steel ball abuts against the conical surface at the lower end of the button rod, and the outer side of the steel ball abuts against the inner wall of the limiting block sleeved at the bottom end of the button post.

[0009] The aquarium body has a cleaning component on the bottom inside, including a filter plate and a concave funnel that are horizontally fixed inside the aquarium body. A vibrator is fixedly connected to the bottom center of the filter plate by a cable tie. The concave funnel is located below the filter plate with its opening facing upward and is fixedly connected to the inner wall of the aquarium body on its outer side. A drain pipe is vertically connected to the bottom center of the concave funnel. A drain valve and a hose are connected in series at the outlet end of the drain pipe. The outlet end of the hose extends into the wastewater tank, and a wastewater level sensor is provided on one side of the top of the wastewater tank.

[0010] A water exchange assembly is provided on one side of the aquarium body, including a clean water storage tank that is fitted to the inner bottom of the aquarium body. The top side of the clean water storage tank is connected to the inlet of a clean water injection pump via a water pipe. The clean water injection pump is fixed to one side of the inner wall of the aquarium body and its output end is fixedly connected to a water supply pipe. The outlet of the water supply pipe extends to one side of the top of the aquarium body.

[0011] The clean water storage tank is connected to the inlet 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 a water supply pipe. The outlet of the water supply pipe is connected to the first cleaning pipe via a T-junction. The first cleaning pipe has outlet holes at both ends and is fixedly connected to the second cleaning pipe via elbows. Both the first cleaning pipe and the second cleaning pipe are fixed to the surface of the concave funnel with cable ties.

[0012] A circulating water pump is installed above the wastewater 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 outlet is connected to the inside of the aquarium body.

[0013] The function buttons, wastewater level sensor, clean water injection pump, clean wastewater pump, and circulating water pump are all electrically connected to the circuit board located below the filter tank.

[0014] Preferably, the rotating connection end of the cover plate is rotatably connected to the aquarium body via a rotating shaft, and a lighting lamp is fixedly installed at the center of the inner side of the cover plate, and the lighting lamp is electrically connected to the circuit board.

[0015] Preferably, the side wall of the button post is fixedly connected to the inner top of the aquarium body, the limiting block is snapped and fixed to the inner wall of the aquarium body, and the inner wall of the limiting 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 radially by the conical surface of the button rod and extends outward, forming a self-locking mechanism with the limiting block.

[0016] 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.

[0017] Preferably, the surfaces of the first and second cleaning pipes are provided with two rows of water outlets, one row of which has its water outlet direction inclined toward the inner wall of the concave funnel, and the other row of which has its water outlet direction toward the filter plate.

[0018] Preferably, the filter tank is sequentially filled with an activated carbon layer, a biological filter cotton layer, and a ceramic ring layer. The bottom of the filter tank is provided with a removable and washable mesh partition, and the outlet of the filter tank is provided with an anti-backflow baffle.

[0019] Preferably, the bottom of the wastewater tank and the clean water storage tank are fitted with anti-slip rubber pads at the joints with the inner wall of the aquarium body, and the wastewater level sensor is a float sensor.

[0020] Preferably, a first water level sensor is provided at the inlet of the filter tank, and a second water level sensor is provided on the side wall of the aquarium body near the outlet of the water supply pipe. Both the first and second water level sensors are 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 outlet of the water supply pipe and higher than the upper surface of the filter plate.

[0021] Compared with existing technologies, the beneficial effects of this utility model are as follows: This self-cleaning circulating aquarium, through the high integration of a mechanical self-locking mechanism, vibration cleaning, intelligent water circulation control, and multi-stage filtration devices, achieves comprehensive optimization of aquarium safety protection, automatic cleaning, water quality management, and intelligent control, significantly improving the system's reliability, cleaning efficiency, and ease of use. The specific details are as follows:

[0022] 1. Safety Lock

[0023] The cover plate is automatically locked mechanically through an original self-locking component. It adopts a wedge-shaped mating structure of steel ball and conical button rod, combined with the arc-shaped concave design of the limit block, to form a radial self-locking effect under the action of spring preload. This significantly improves the closing stability of the cover plate and effectively prevents accidental opening caused by external impact. At the same time, the spring provides a buffer to ensure smooth operation, taking into account both safety and user experience.

[0024] 2. Highly efficient cleaning

[0025] Vibrating filter plates utilize high-frequency micro-vibration to quickly loosen and remove deposits adhering to the filter pore surface. Compared to traditional static filter plates, this method can more thoroughly prevent dirt accumulation and significantly improve cleaning efficiency. The concave funnel and inclined cleaning pipe form a vortex flushing system, with the inclined outlet design creating tangential water flow. Combined with the solenoid valve-controlled drain pipe, this system can efficiently flush and thoroughly remove sediment. Meanwhile, the wastewater tank is equipped with a float-type level sensor, enabling intelligent monitoring of wastewater volume.

[0026] 3. Water cycle management

[0027] By using dual water level sensors for collaborative monitoring (the first water level sensor monitors the water level in the filter tank, and the ultrasonic second water level sensor detects the water level in the main tank), combined with the circuitry, the triple water pumps (clean water injection pump, clean wastewater pump, and circulating water pump) are linked for coordinated control, achieving fully automated operation of the water exchange process and significantly reducing the need for manual intervention.

[0028] 4. Multifunctional filtration

[0029] The filter tank uses a three-stage filter media arrangement of activated carbon, biological filter cotton and ceramic rings, combined with a mesh baffle for easy maintenance and cleaning, and an anti-backflow baffle design to prevent water backflow, significantly improving nitrification efficiency and water quality stability.

[0030] 5. Functional integration

[0031] The system integrates lighting control, cleaning system and circulation device through a unified circuit board control system, allowing users to easily interact with the machine using only function buttons. The system is responsive, simple and intuitive to operate, significantly improving ease of use and offering better overall coordination and user experience compared to traditional split designs. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0033] Figure 2 This is a schematic diagram of the internal structure of the aquarium body of this utility model;

[0034] Figure 3 This is a top view of the filter plate structure of this utility model;

[0035] Figure 4 This is a top view of the concave funnel structure of this utility model;

[0036] Figure 5 This is a front view schematic diagram of the internal structure of the aquarium body of this utility model;

[0037] Figure 6 This is a schematic diagram of the internal side view of the main body of the aquarium of this utility model;

[0038] Figure 7 This utility model Figure 6 Schematic diagram of the cross-sectional structure at point B in the middle;

[0039] Figure 8 This utility model Figure 7 Enlarged structural diagram at point A in the middle.

[0040] In the diagram: 1. Aquarium body; 2. Function buttons; 3. Self-locking assembly; 301. Cover plate; 302. Button post; 303. Through hole; 304. Button lever; 305. Spring; 306. Groove; 307. Steel ball; 308. Limiting block; 309. Lighting; 4. Cleaning assembly; 401. Filter plate; 402. Vibrator; 403. Concave funnel; 404. Drain pipe; 405. Drain valve; 406. Hose; 407. Wastewater tank; 408. Wastewater level sensor; 5. Water changing assembly; 501. Fresh water storage tank; 502. Fresh water injection pump; 503. Water inlet pipe; 504. Fresh and wastewater pump; 505. Water supply pipe; 506. First cleaning pipe; 507. Second cleaning pipe; 508. Circulating water pump; 509. Filter tank; 510. Circuit board. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Please see Figure 1-8 This utility model provides a technical solution: a self-cleaning circulating aquarium, including an aquarium body 1, a function button 2 on one side of the top of the aquarium body 1, and a self-locking component 3 on the side near the function button 2; the self-locking component 3 includes a cover plate 301 rotatably connected to the aquarium body 1, a button post 302 fixedly provided at the center position away from the rotatable connection end of the cover plate 301, a through hole 303 axially opened inside the button post 302, a button rod 304 slidably sleeved in the through hole 303, and a spring 305 sleeved on the outer periphery of the button rod 304; symmetrical grooves 306 are opened on both sides of the bottom end of the button post 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 lower conical surface of the button rod 304, and the outer side of the steel ball 307 abuts against the inner wall of the limiting block 308 sleeved on the bottom end of the button post 302;

[0043] The self-locking component 3 adopts an innovative mechanical structure design. The conical surfaces of the button post 302 and the button rod 304 drive the steel ball 307 to lock radially. Under the pre-tightening force of the spring 305, it forms a stable self-lock with the limit block 308. It has significant advantages such as high reliability, convenient operation (one-button unlocking), compact structure (modular design for easy assembly), safety and durability. It effectively solves the problems of easy failure and inconvenient operation of traditional locks, and greatly improves the safety and user experience of aquarium lids.

[0044] A cleaning component 4 is provided on the bottom side of the aquarium body 1, including a filter plate 401 and a concave funnel 403 horizontally fixed inside the aquarium body 1. A vibrator 402 is fixedly connected to the bottom center of the filter plate 401 by a cable tie. The concave funnel 403 is located below the filter plate 401 with its opening facing upward and its outer side is fixedly connected to the inner wall of the aquarium body 1. A drain pipe 404 is vertically connected to the bottom center of the concave funnel 403. A drain valve 405 and a hose 406 are connected in series at the outlet end of the drain pipe 404. The outlet end of the hose 406 extends into the sewage tank 407. A sewage level sensor 408 is provided on one side of the top of the sewage tank 407.

[0045] The cleaning component 4 employs a synergistic design of a vibrating filter plate 401 and a concave funnel 403, offering the following key advantages: High-efficiency cleaning: The vibrator 402 (model: YZUL-0.55-4 low-frequency vibration motor, rated frequency range 5-15Hz) utilizes a low-frequency motor design. The mechanical waves generated at this frequency band can create non-disturbing stimulation through the water medium, effectively avoiding disturbance to nearby fish communities. The vibrator 402 drives the filter plate to vibrate at high frequency, effectively preventing dirt adhesion and significantly improving cleaning efficiency compared to traditional static filter plates; the concave funnel 4... 03 forms a sedimentation chamber, which, together with the inclined drain pipe 404 and the electromagnetic drain valve 405, enables rapid accumulation and automatic discharge of waste; anti-clogging design: vibration keeps the filter holes unobstructed, avoiding the problem of easy clogging of traditional filter plates 401; intelligent monitoring: wastewater level sensor 408 monitors the wastewater tank capacity in real time to ensure timely cleaning; the distance between the concave funnel 403 and the filter plate 401 is optimized by fluid dynamics, making the sedimentation path of waste more reasonable; therefore, this component achieves efficient and automated cleaning of the bottom of the aquarium through the synergistic effect of vibration cleaning and sewage discharge, greatly reducing the frequency of manual maintenance;

[0046] A water exchange assembly 5 is provided on one side of the aquarium body 1, including a clean water storage tank 501 that is attached to 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 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 a water supply pipe 503. The outlet end of the water supply pipe 503 extends to one side of the top of the aquarium body 1.

[0047] The water storage tank 501 is tightly fitted to the inner bottom of the aquarium body 1. It is made of transparent acrylic material for easy observation of the water level and is enhanced by anti-slip rubber pads to improve installation stability. The water injection pump 502 is a 12V DC low-noise submersible pump, which is rigidly fixed to the inner wall of the tank by a mounting bracket. Its output end is connected to the water inlet pipe 503 by a flange to ensure a firm and reliable connection. The water inlet pipe 503 is arranged vertically along the inner wall of the tank, with the outlet extending to the top and adopting a diffuser design. With the flow regulating valve, the water injection speed can be precisely controlled, which reduces water flow impact and makes it easy to observe the water injection status.

[0048] This component significantly improves space utilization through optimized layout while maintaining a compact and aesthetically pleasing overall structure; rigid fixing and flange connection ensure water supply stability; the user-friendly transparent water tank design and detachable connection structure greatly enhance operation and maintenance convenience; anti-slip rubber pads further enhance installation stability; low-noise water pump improves user experience; and flow regulating valve enables precise control of water flow, allowing this water changing component to achieve efficient, stable, and environmentally friendly automated water changing functions within a limited space.

[0049] The clean water storage tank 501 is connected to the inlet of the clean water pump 504 via a water pipe on the 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 outlet of the water supply pipe 505 is connected to the first cleaning pipe 506 via a three-way branch. The first cleaning pipe 506 has water outlet holes at both ends and is fixedly connected to the second cleaning pipe 507 via elbows. Both the first cleaning pipe 506 and the second cleaning pipe 507 are fixed to the surface of the concave funnel 403 by cable ties.

[0050] The wastewater pump 504 is a 24V DC corrosion-resistant submersible centrifugal pump, which is fixedly mounted on the water supply pipe 505 through a flange connection to form a stable power output system. The outlet end of the water supply pipe 505 is connected to the first cleaning pipe 506 and the second cleaning pipe 507 through a three-way fitting with built-in guide fins. The two cleaning pipes are made of stainless steel and are firmly fixed to the surface of the concave funnel 403 with silicone-coated 304 stainless steel cable ties to form a ring flushing circuit. The inclined outlet holes on the cleaning pipe generate tangential jets, which create a swirling effect in the concave funnel 403, so that the sediment can be efficiently removed from the inner wall and collected towards the sewage outlet. The three-way diverter achieves uniform water distribution, the flange connection ensures pipeline stability, and the design of a shared clean water storage tank 501 improves space utilization.

[0051] Above the wastewater pump 504, there is a circulating water pump 508. 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 outlet is connected to the inside of the aquarium body 1.

[0052] The circulating filtration system achieves efficient and stable water purification through an innovative modular design. The circulating water pump 508 adopts a variable frequency energy-saving design and is vertically installed above the wastewater pump 504 at a pre-set position via an anti-vibration bracket, forming a space-optimized layered layout. Its output end connects to a pressure-resistant water pipe via a quick-release interface, forming a direct-connection water system with the filter tank 509, significantly shortening the water flow path. The filter tank 509 is made of transparent polycarbonate and is rigidly fixed to the load-bearing frame of the housing with bolts. Internally, from bottom to top, it consists of a 2mm pore size 304 stainless steel mesh partition, a ceramic ring layer, a biological filter cotton layer, and an activated carbon layer, forming a three-stage filtration system with synergistic physical, biological, and chemical effects. This system has multiple advantages: high space integration, reducing lateral occupancy; and a specially designed horn-shaped outlet combined with a silicone anti-backflow baffle, ensuring uniform water flow back while preventing backflow.

[0053] Function button 2, wastewater level sensor 408, clean water injection pump 502, clean wastewater pump 504 and circulating water pump 508 are all electrically connected to circuit board 510 located below filter tank 509.

[0054] The circuit board 510 is integrated into the waterproof compartment below the filter tank 509, and its surface is provided with standardized electrical interfaces corresponding to each functional component. The function button 2 is connected to the input terminal of the circuit board 510 through a waterproof cable to realize the transmission of user commands. The sewage level sensor 408 is connected to the analog signal acquisition terminal of the circuit board 510 using a three-wire wiring method. The clean water injection pump 502, the clean sewage pump 504, and the circulating water pump 508 are respectively connected to the power output terminal of the circuit board 510 through a relay module. The working 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 coordinates the start-stop sequence and operating parameters of each actuator through a preset program.

[0055] The rotating connection end of the cover plate 301 is rotatably connected to the aquarium body 1 through a rotating shaft. A lighting lamp 309 is fixedly installed on the inner center of the cover plate 301, and the lighting lamp 309 is electrically connected to the circuit board 510.

[0056] The stainless steel hinge connection structure with built-in dampers ensures smooth and stable opening and closing of the cover 301, allowing it to hover at any angle while avoiding additional space occupation within the aquarium. The waterproof LED light 309, centrally integrated inside the cover, is connected to the circuit board 510 via concealed wiring, ensuring even light coverage of the aquarium area and effectively preventing moisture damage. The PWM dimming module on the circuit board 510 supports timed and gradual brightening / fading functions, allowing users to easily adjust lighting parameters through a unified interface. This design perfectly integrates the mechanical structure and lighting system, achieving intelligent coordination between lid opening and lighting functions within a limited space. This not only improves ease of use and electrical safety but also maintains the overall aesthetic harmony of the aquarium.

[0057] The side wall of the button post 302 is fixedly connected to the inner top of the aquarium body 1, and the limiting block 308 is snapped and fixed to the inner wall of the aquarium body 1. The inner wall of the limiting 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 radially by the conical surface of the button rod 304 and forms a self-locking with the limiting block 308.

[0058] The self-locking assembly achieves a highly efficient and reliable locking function through a precise mechanical structure design. The assembly uses a 440C stainless steel ball 307 that engages with a mirror-polished limiting block 308 with its concave surface, forming a stable surface contact self-locking mechanism under the action of the conical surface of the button lever 304. The innovative snap-fit ​​fixing structure and the use of a 316 stainless steel spring 305 avoid the risk of thread loosening. The design allows for quick release of the cover plate 301 with a one-way press of the button lever 304, conforming to ergonomic principles and optimizing space utilization through a side-wall fixed connection. This self-locking assembly organically combines mechanical optimization, materials science, and spatial design, achieving multiple advantages such as high reliability, long lifespan, and convenient operation within a compact structure.

[0059] 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.

[0060] The sedimentation and sludge discharge system adopts a closed sedimentation chamber structure composed of filter plate 401 and concave funnel 403. The 15° inclined sidewall design effectively promotes the accumulation of dirt and significantly improves the solid-liquid separation effect. The connection of the sludge discharge pipe 404 is equipped with a fluororubber sealing ring to ensure that the system maintains reliable sealing under water pressure. The intelligent electromagnetic sludge discharge valve 405 works in conjunction with the circuit board 510, which has a fast response effect and supports timed or water quality sensing automatic sludge discharge. The modular quick-release structure design makes maintenance and cleaning more convenient. It realizes the high efficiency, automation and reliability of the sedimentation and sludge discharge process.

[0061] The first cleaning pipe 506 and the second cleaning pipe 507 are provided with two water outlets. One row of water outlets is inclined towards the inner wall of the concave funnel 403, and the other row of water outlets is inclined towards the filter plate 401.

[0062] The water outlets evenly distributed on the surfaces of the first cleaning pipe 506 and the second cleaning pipe 507 are inclined at 30° to 45°. One of the water outlets forms a tangential jet and generates a strong swirling effect on the inner wall of the concave funnel 403, which rapidly removes deposits. The other water outlet sprays water at an angle toward the filter plate 401, which can backwash the surface of the filter plate, remove filter hole blockage, and improve filtration efficiency. The two water outlets work together to ensure that the cleaning process has no dead corners, which significantly improves the long-term operational stability of the device. Therefore, this cleaning pipe structure, through scientific hole layout and optimized spray angle, achieves a comprehensive, efficient and energy-saving automated cleaning effect while ensuring long-term unobstructed flow.

[0063] The filter tank 509 is sequentially filled with an activated carbon layer, a biological filter cotton layer and a ceramic ring layer. The bottom of the filter tank 509 is equipped with a removable and washable mesh partition, and the outlet of the filter tank 509 is equipped with an anti-backflow baffle.

[0064] The multi-stage filtration system employs a three-layer composite filter medium: the upper layer is equipped with a high-performance activated carbon layer to effectively remove dissolved impurities from the water; the middle layer is set with a dual-function biological filter cotton layer, which can both physically filter suspended particles and provide an attachment carrier for beneficial microorganisms; the lower layer is arranged with a porous ceramic ring layer to create an ecological environment suitable for the reproduction of nitrifying bacteria, forming a synergistic comprehensive filtration system; the bottom uses a removable mesh baffle made of corrosion-resistant metal material for easy daily maintenance and operation, and together with a specially designed anti-backflow device at the outlet, it protects the integrity of the filter medium structure and maintains the long-term stable filtration performance of the system; through optimized material combination and modular structural design, this filtration system significantly improves the maintainability and operational reliability of the system while ensuring excellent purification effect;

[0065] The bottom of the wastewater tank 407 and the clean water storage tank 501 are fitted with anti-slip rubber pads at the joints with the inner wall of the aquarium body 1, and the wastewater level sensor 408 is a float sensor.

[0066] Anti-slip rubber pads effectively prevent water storage container displacement, ensuring equipment operational stability. The rubber material has excellent shock absorption and buffering performance, reducing vibration and noise during water pump operation. The float sensor has a simple and reliable structure, with a liquid level detection accuracy of ±1mm, and is unaffected by water turbidity. The sensor uses mechanical triggering, which is more corrosion-resistant and has a longer service life than electronic sensors, ensuring long-term stable operation in humid environments.

[0067] A first water level sensor is provided at the inlet of the filter tank 509, and a second water level sensor is provided on the side wall of the aquarium body 1 near the outlet of the water supply 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, and its installation height is lower than the outlet of the water supply pipe 503 and higher than the upper surface of the filter plate 401.

[0068] The first water level sensor uses photoelectric real-time monitoring of the water inlet of the filter tank 509, while the second water level sensor (ultrasonic) detects the water level in the main tank. 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 outlet of the water inlet pipe 503, which can cut off the water pump in advance when the water level rises abnormally, preventing water from overflowing. The second water level sensor is set above the filter plate 401 to ensure that the minimum water level always covers the filter material, preventing dry burning damage. The signals from the two sensors are compared and analyzed by the circuit board 510 to automatically coordinate the start and stop sequence of the clean water injection pump 502 and the circulating water pump 508.

[0069] Working principle: Before using this self-cleaning circulating aquarium, it is necessary to check the overall condition of the device to ensure it can function properly. Figure 1 - Figure 8 As shown, the circuit board 510 integrates control function button 2, water level sensor, water pump and drain valve to realize one-button operation; users can select cleaning, water change or circulation mode through function button 2. The system automatically adjusts the start and stop of water pump, opening and closing of drain valve and switching of lighting 309 according to sensor feedback to realize intelligent management of the whole process and greatly reduce the need for manual intervention.

[0070] 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, which loosens and removes the dirt attached to the surface of the filter holes, avoiding the problem of easy clogging of traditional static filter plates; the removed dirt settles into the concave funnel 403 under the action of gravity, forming a sedimentation chamber; during cleaning, the wastewater 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 swirling flow 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 wastewater tank 407 through the drain pipe 404 and the hose 406; the wastewater level sensor 408 monitors the wastewater tank level in real time, and when the set threshold is reached, the system prompts to clean the wastewater, ensuring that the wastewater discharge process is intelligent;

[0071] Meanwhile, the water change process is controlled collaboratively by the clean water injection pump 502, the clean water and wastewater pump 504, and the circulating water pump 508. When the second water level sensor (ultrasonic type) detects that the aquarium water level is lower than the set value, the clean water injection pump 502 starts, injecting water from the clean water storage tank 501 into the aquarium through the water inlet pipe 503. When the water level is too high, the clean water injection pump 502 stops working, and the circulating water pump 508 continuously pumps water from 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 burning dry and ensure the safe operation of the system.

[0072] Secondly, the cover plate 301 is rotatably connected to the aquarium body 1 via a pivot. When closed, the button lever 304 is subjected to the pre-tightening force of the spring 305, and its lower conical surface pushes the steel ball 307 to move radially outward, so that the steel ball 307 is tightly abutted against the arc-shaped concave surface of the inner wall of the limiting block 308, forming a mechanical self-locking mechanism. When it is necessary to open the cover plate, press the button lever 304. When the steel ball 307 loses the conical surface pressure and retracts into the groove 306, the self-locking state is released, and the cover plate can be freely flipped. This structure ensures that the cover plate has high impact resistance when closed, preventing accidental opening by external force, while being easy to operate and combining safety and user experience.

[0073] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-cleaning circulating aquarium, comprising an aquarium body (1), characterized in that: The aquarium body (1) has a function button (2) on one side of its top, and a self-locking component (3) is provided on the side near the function button (2). The self-locking assembly (3) includes a cover plate (301) rotatably connected to the aquarium body (1). A button post (302) is fixedly provided at the center position away from the rotatable connection end of the cover plate (301). A through hole (303) is axially opened inside the button post (302). A button rod (304) is slidably sleeved in the through hole (303). A spring (305) is sleeved on the outer periphery of the button rod (304). The button post (302) has symmetrical grooves (306) on both sides of its bottom end. A radially rolling steel ball (307) is embedded in the two grooves (306). The inner side of the steel ball (307) abuts against the lower conical surface of the button rod (304), and the outer side of the steel ball (307) abuts against the inner wall of the limiting block (308) sleeved at the bottom end of the button post (302). The aquarium body (1) has a cleaning component (4) on the bottom side inside, including a filter plate (401) and a concave funnel (403) horizontally fixed inside the aquarium body (1). A vibrator (402) is fixedly connected to the bottom center of the filter plate (401) by a cable tie. The concave funnel (403) is located below the filter plate (401) with its opening facing upward and its outer side is fixedly connected to the inner wall of the aquarium body (1). A drain pipe (404) is vertically connected to the bottom center of the concave funnel (403). A drain valve (405) and a hose (406) are connected in series at the outlet end of the drain pipe (404). The outlet end of the hose (406) extends into the sewage tank (407). A sewage level sensor (408) is provided on one side of the top of the sewage tank (407). A water exchange assembly (5) is provided on one side of the aquarium body (1), including a clean water storage tank (501) that is attached to 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 inlet end of a clean water injection pump (502) through 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 a water supply pipe (503). The outlet end of the water supply pipe (503) extends to one side of the top of the aquarium body (1). The clean water storage tank (501) is connected to the inlet of the clean water pump (504) via a water pipe on the 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 outlet end of the water supply pipe (505) is connected to the first cleaning pipe (506) via a three-way branch. The first cleaning pipe (506) has water outlet holes at both ends and is fixedly connected to the second cleaning pipe (507) via elbows. The first cleaning pipe (506) and the second cleaning pipe (507) are both fixed to the surface of the concave funnel (403) by cable ties. A circulating water pump (508) is provided above the wastewater 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 outlet is connected to the inside of the aquarium body (1). The 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).

2. The self-cleaning circulating aquarium according to claim 1, characterized in that: The rotating connection end of the cover plate (301) is connected to the aquarium body (1) through a rotating shaft. A lighting lamp (309) is fixedly installed on 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 post (302) is fixedly connected to the inner top of the aquarium body (1). The limiting block (308) is snapped and fixed to the inner wall of the aquarium body (1). The inner wall of the limiting 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 radially by the conical surface of the button rod (304) and forms a self-locking mechanism with the limiting block (308).

4. A 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 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).

5. A self-cleaning circulating aquarium according to claim 1, characterized in that: The first cleaning pipe (506) and the second cleaning pipe (507) are provided with two water outlets. One of the outlets is inclined towards the inner wall of the concave funnel (403), and the other outlet is inclined towards the filter plate (401).

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

7. A self-cleaning circulating aquarium according to claim 1, characterized in that: The bottom of the sewage tank (407) and the clean water storage tank (501) are fitted with anti-slip rubber pads at the joints with the inner wall of the aquarium body (1), and the sewage level sensor (408) is a float sensor.

8. A self-cleaning circulating aquarium according to claim 1, characterized in that: A first water level sensor is provided at the 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 outlet of the water supply 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, and its installation height is lower than the outlet of the water supply pipe (503) and higher than the upper surface of the filter plate (401).

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