Level gauge and fish tank

Abstract

This application discloses a level gauge and a fish tank. The level gauge includes a housing, at least two detection components, and a control board. During use, the level gauge can be placed within the space of the liquid surface to be detected. The infrared emitting and receiving tubes within each detection component are arranged opposite each other, ensuring their optical axes are aligned. The level detection utilizes the infrared photoelectric principle, requiring no additional lenses or specially designed optical lenses or prisms for optical path control. It can be either contact or non-contact. Specifically, when the infrared emitting and receiving tubes are exposed to air, the infrared signal is not blocked, and the pulse signal can be normally sent to the control board. When the infrared emitting and receiving tubes are submerged in water, the water has a strong attenuation and divergence effect on infrared light, causing the receiving tube to fail to receive a sufficiently strong pulse signal. The signal output to the control board is high-level, thus distinguishing and determining the water level location.

Description

Technical Field

[0001] This application relates to the field of aquarium technology, and more particularly to a level gauge and aquarium. Background Technology

[0002] There are various existing liquid level gauge solutions, such as ultrasonic liquid level gauges, pressure liquid level gauges, capacitive liquid level gauges, float reed switch liquid level gauges, float Hall effect liquid level gauges, and infrared photoelectric liquid level gauges with optical lenses.

[0003] Ultrasonic level gauges determine liquid level by emitting ultrasonic waves and measuring the time it takes for the reflected waves to travel. However, the measurement results are significantly affected by external environmental factors. They must be installed directly above the liquid surface, making installation and debugging relatively complex and costly; therefore, they can only be made as non-contact gauges.

[0004] Pressure level gauges detect liquid levels by measuring changes in pressure on a bottom pressure sensor caused by changes in the volume of liquid within the container. This requires high-quality sensors, leading to high costs, and limits their application to contact-type gauges.

[0005] Capacitive level gauges identify liquid levels by sensing changes in capacitance. However, the dielectric constant of the measured medium is significantly affected by external environmental factors, impacting the measurement results. Furthermore, they are typically limited to non-contact methods; implementing a contact method would require conductive components, resulting in a complex structure and high cost.

[0006] Float-type reed switch or float-type Hall effect level gauges indirectly detect changes in liquid level by having a float with a built-in permanent magnet act on a reed switch or Hall effect sensor as it passes through a certain position. The float is a moving part, which reduces product reliability. It requires a larger installation size and must be a contact type.

[0007] Current infrared optical level gauges typically employ a specially designed optical lens with a refractive index close to that of the specific liquid to be installed in front of the infrared level tube. This allows for total internal reflection of infrared light when the liquid is empty and transmission of infrared light when the liquid is immersed. This method is costly, suitable only for specific liquids, and can only be used in contact applications. Utility Model Content

[0008] The present invention introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This part of the present invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0009] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0010] Therefore, the first aspect of this utility model provides a level gauge.

[0011] The second aspect of this utility model provides a fish tank.

[0012] In view of the above, a level gauge is provided according to a first aspect of the embodiments of this application, comprising:

[0013] A housing having a mounting groove formed along its height direction;

[0014] At least two sets of detection components are provided, with different detection components arranged at intervals along the height direction of the housing. Each detection component includes an infrared emitting tube and a receiving tube, both of which are connected to the inner wall of the mounting groove. The infrared emitting tube and the receiving tube in each detection component are arranged opposite to each other.

[0015] A control board is disposed on the side of the housing opposite to the mounting groove, and the detection component is connected to the control board.

[0016] In one feasible implementation, a first recess is formed at the connection between the infrared emitting tube and the inner wall of the mounting groove, and the first recess is connected to the mounting groove.

[0017] A second recess is formed at the connection between the receiving tube and the inner wall of the mounting groove, and the second recess is connected to the mounting groove.

[0018] In one feasible implementation, the level gauge further includes:

[0019] Encapsulation layer, the encapsulation layer being disposed at the connection between the infrared emitting tube and the housing and at the connection between the receiving tube and the housing; and / or

[0020] A first sealing cover is used to cover the infrared emitting tube;

[0021] The second sealing cover is used to cover the receiving tube.

[0022] In one feasible implementation, the control panel has the following features:

[0023] An extension circuit is provided, which is arranged along the height of the housing and is connected to the infrared emitting tube and the receiving tube.

[0024] A signal amplification circuit, wherein the extension line is connected to the signal amplification circuit;

[0025] A signal conditioning circuit, wherein the signal amplification circuit is connected to the signal conditioning circuit;

[0026] The control chip, and the signal processing circuit is connected to the control chip.

[0027] In one feasible implementation, the level gauge further includes:

[0028] A first temperature sensor is mounted on the housing and connected to the control board;

[0029] Indicator lights are mounted on the housing and connected to the control board.

[0030] In one feasible implementation, a limiting slot is formed on the side of the housing opposite to the mounting groove, the control board is disposed within the limiting slot, the infrared emitting tube is connected to the control board via pins, and the receiving tube is connected to the control board via pins; and / or

[0031] The level gauge further includes a cover plate connected to the housing to enclose the control panel.

[0032] A second aspect of the embodiments of this application provides a fish tank, comprising:

[0033] Cylinder block;

[0034] The cabinet, wherein the cylinder is mounted on the cabinet;

[0035] A wastewater treatment assembly includes: a sedimentation unit, a purification unit, and a conveying unit connected in sequence. The sedimentation unit is used to receive wastewater conveyed through a tank, and the conveying unit is used to supply circulating water to the tank after the wastewater has been sedimented and purified.

[0036] As described in any of the above technical solutions, the level gauge is disposed within the conveying unit and arranged along the height direction of the conveying unit.

[0037] In one feasible implementation, the fish tank further includes: a water inlet assembly, which includes a heating unit, a filtration unit, and an external water pipe, the external water pipe being connected to the filtration unit, the output end of the filtration unit being connected to the heating unit, and the output end of the heating unit being connected to the conveying unit.

[0038] In one feasible implementation, a limiting groove is also formed on the housing, and the supply pipe of the heating unit is snapped into the limiting groove.

[0039] In one feasible implementation, the heating unit includes:

[0040] A heating element is provided, and the output end of the filter unit is connected to the heating element.

[0041] A second temperature sensor is disposed at the input end of the heating element;

[0042] A third temperature sensor is disposed at the output end of the heating tube;

[0043] The aquarium main control board is connected to the second temperature sensor, the third temperature sensor and the control board.

[0044] Compared with the prior art, the present invention has at least the following beneficial effects:

[0045] The liquid level gauge provided in this application includes a housing, at least two detection components, and a control board. During use, the liquid level gauge can be placed within the space of the liquid surface to be detected. The infrared emitting and receiving tubes within each detection component are arranged opposite each other, ensuring their optical axes are aligned. Based on the infrared photoelectric principle, no additional lenses or specially designed optical lenses or prisms are required for optical path control. It can be either contact or non-contact. Specifically, when the infrared emitting and receiving tubes are exposed to air, the infrared signal is not blocked, and the pulse signal can be normally sent to the control board. When the infrared emitting and receiving tubes are submerged in water, the strong attenuation and divergence of infrared light by water prevents the receiving tube from receiving a sufficiently strong pulse signal. The signal output to the control board is high-level (or low-level depending on the circuit design), thus distinguishing and determining the water level location. By setting multiple detection components, the liquid level gauge can have multiple detection positions, increasing its application range.

[0046] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0047] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0048] Figure 1 A schematic structural diagram of the first angle of a level gauge according to an embodiment of this application;

[0049] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0050] Figure 3 A schematic structural diagram of a level gauge from a second angle, according to one embodiment of this application;

[0051] Figure 4 A schematic structural block diagram of a level gauge according to one embodiment of this application;

[0052] Figure 5 A schematic block diagram of the circuit structure of a level gauge according to one embodiment of this application;

[0053] Figure 6 A schematic structural diagram of a fish tank according to one embodiment of this application;

[0054] Figure 7 A schematic structural diagram of an angle of the concealed portion of the cabinet of a fish tank according to an embodiment of this application;

[0055] Figure 8 A schematic structural diagram of the concealed cabinet and wastewater treatment components of a fish tank according to an embodiment of this application, taken from one angle.

[0056] Figure 9 A schematic structural diagram of the concealed cabinet and wastewater treatment components of a fish tank according to one embodiment of this application, taken from another angle.

[0057] Figure 10 A schematic structural diagram of the water inlet assembly of a fish tank according to one embodiment of this application, taken at one angle.

[0058] Figure 11 for Figure 10 A magnified view of a portion of point B in the middle;

[0059] Figure 12 A schematic structural diagram of the hidden portion of the cabinet of the fish tank according to an embodiment of this application from another angle;

[0060] Figure 13 for Figure 12 A magnified view of a portion of point C in the middle;

[0061] Figure 14 This is a schematic structural diagram of a heating unit for a fish tank according to one embodiment of the present application.

[0062] in, Figures 1 to 14 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0063] 300 level gauge;

[0064] 310 Housing, 320 Detection Components, 330 Control Board, 340 First Temperature Sensor;

[0065] 311 Mounting slot, 312 Limiting slot, 313 Limiting groove;

[0066] 321 infrared transmitter, 322 receiver;

[0067] 331 Extension circuit, 332 Signal amplification circuit, 333 Signal conditioning circuit, 334 Control chip, 335 Indicator light;

[0068] 110 tank body, 120 cabinet, 130 wastewater treatment components, 140 water inlet components, 150 aquarium main control board;

[0069] 131 Sedimentation unit, 132 Purification unit, 133 Conveying unit, 1311 Sedimentation chamber, 1312 Inclined plate, 1321 First purification chamber, 1322 Second purification chamber, 1323 Plate, 1324 Third filtration unit, 1325 Fourth filtration unit, 1326 Fifth filtration unit, 1331 Pump chamber, 1332 Pump body, 1333 Circulation pipe;

[0070] 141 Filter unit, 142 External water pipe, 143 Heating unit;

[0071] 1431 Heating element, 1432 Second temperature sensor, 1433 Third temperature sensor. Detailed Implementation

[0072] The following description provides numerous specific details to offer a more thorough understanding of the technical solutions provided by this invention. However, it will be apparent to those skilled in the art that the technical solutions provided by this invention can be implemented without one or more of these details.

[0073] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0074] Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present invention is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0075] like Figures 1 to 5As shown, a level gauge 300 is provided according to a first aspect of the present application, comprising: a housing 310, wherein a mounting groove 311 is formed in the housing 310 along the height direction; at least two sets of detection components 320, wherein different detection components 320 are arranged at intervals along the height direction of the housing 310, each detection component 320 including an infrared emitting tube 321 and a receiving tube 322, both the infrared emitting tube 321 and the receiving tube 322 being connected to the inner wall of the mounting groove 311, and the infrared emitting tube 321 and the receiving tube 322 in each detection component 320 being arranged opposite to each other; and a control board 330, wherein the control board 330 is disposed on the side of the housing 310 opposite to the mounting groove 311, and the detection components 320 are connected to the control board 330.

[0076] The liquid level gauge 300 provided in this application embodiment includes a housing 310, at least two detection components 320, and a control board 330. During use, the liquid level gauge 300 can be placed within the space of the liquid surface to be detected. The infrared emitting tube 321 and receiving tube 322 in each detection component 320 are arranged opposite to each other, so that the optical axes of the infrared emitting tube 321 and receiving tube 322 are on a straight line. Based on the infrared photoelectric principle, no additional lens is required, and no specially designed optical lens or prism is needed for optical path control. It can be either contact or non-contact. During specific inspection, when the infrared emitting tube 321 and the receiving tube 322 are exposed to the air, the infrared signal is not blocked, and the pulse signal can be sent normally to the control board 330. When the infrared emitting tube 321 and the receiving tube 322 are submerged in water, due to the strong attenuation and divergence of infrared light by water, the receiving tube 322 cannot receive a sufficiently strong pulse signal, and the signal output to the control board is a high level (it can also be a low level signal depending on the circuit design). This allows the water level to be distinguished and determined. By setting multiple detection components 320, the level gauge 300 can have multiple detection positions, thus improving its application range.

[0077] The liquid level gauge 300 provided in this application embodiment has an infrared emitting tube 321 and a receiving tube 322 connected to the inner wall of the mounting groove 311 and arranged in the mounting groove 311. Based on this, during the detection process, when the liquid level gauge 300 is placed in the area to be detected, the liquid will flow in the mounting groove 311 as the liquid level rises and falls. The formation of the mounting groove 311 makes the detection of the liquid level more accurate and will not cause incorrect judgment of the liquid level due to the surge of the liquid level. At the same time, it can reduce the probability of foreign matter entering between the infrared emitting tube 321 and the receiving tube 322, and also facilitates the encapsulation of the infrared emitting tube 321 and the receiving tube 322.

[0078] In some examples, in addition to determining the liquid level based on the signal fed back from the receiving tube 322, the control board 330 can also control the infrared emitting tube 321 to periodically emit pulse signals. Alternatively, an externally input pulse signal can be used as the switching control signal for the infrared emitting tube 321. The frequency is primarily determined by the photoelectric conversion characteristics of the infrared emitting tube 321, typically in the range of 100Hz to 10kHz. The duty cycle is set as small as possible while ensuring normal infrared signal transmission and reliable reception to improve lifespan; for example, it can be set to 1%.

[0079] The liquid level gauge 300 provided in this application embodiment achieves low-cost, high-reliability, and high-sensitivity liquid level detection. Taking the liquid level gauge 300 including two detection components 320 as an example, the liquid level gauge 300 includes two levels. Through two integrated high-sensitivity infrared emitting tubes 321 and receiving tubes 322, as well as matching signal amplification circuits 332 and signal processing circuits 333, reliable detection of high and low liquid levels is achieved. Each channel has an infrared emitting tube 321 that emits a 1kHz infrared light pulse signal; the corresponding receiving tube 322 converts the detected pulse signal into a digital pulse signal after signal amplification and waveform processing, and sends it to the control board 330.

[0080] It is understood that, through the liquid level gauge 300 provided in this application embodiment, by selecting infrared emitting tubes 321 and receiving tubes 322 with different optical power, the distance between the two tubes can be adjusted to adapt to the differences in structural dimensions of different products. That is, a high-power infrared tube is selected when the distance is greater, and a low-power infrared tube is selected when the distance is closer. At the same time, the parameters of related devices such as current-limiting resistors are adjusted to achieve the optimal effect of photoelectric detection.

[0081] like Figures 1 to 5 As shown, in one feasible embodiment, a first recess is formed at the connection between the infrared emitting tube 321 and the inner wall of the mounting groove 311, and the first recess is connected to the mounting groove 311; a second recess is formed at the connection between the receiving tube 322 and the inner wall of the mounting groove 311, and the second recess is connected to the mounting groove 311.

[0082] In this technical solution, an arrangement of infrared emitting tube 321 and receiving tube 322 is further provided. Infrared emitting tube 321 is arranged in the first settling tank and receiving tube 322 is arranged in the second settling tank. Based on this, the infrared emitting tube 321 and receiving tube 322 can be protected by the first settling tank and the second settling tank respectively, reducing the probability of foreign matter contaminating the infrared emitting tube 321 and receiving tube 322, and reducing the impact of liquid surface surge on detection accuracy.

[0083] In one feasible embodiment, the level gauge 300 further includes an encapsulation layer disposed at the connection between the infrared emitting tube 321 and the housing 310 and at the connection between the receiving tube 322 and the housing 310.

[0084] In this technical solution, the level gauge 300 may also include an encapsulation layer. The encapsulation layer seals the connection between the infrared emitting tube 321 and the housing 310, as well as the connection between the receiving tube 322 and the housing 310, which can prevent liquid from flowing into the area where the control board 330 is located and protect the control board 330.

[0085] In some examples, the material used to prepare the encapsulation layer may include resin.

[0086] In one feasible embodiment, the level gauge 300 further includes: a first sealing cover for covering the infrared emitting tube 321; and a second sealing cover for covering the receiving tube 322.

[0087] In this technical solution, considering that in some cases the level gauge 300 may be used to detect liquids with higher temperatures or stronger corrosiveness, the level gauge 300 may also include a first sealing cover and a second sealing cover to respectively seal the infrared emitting tube 321 and the receiving tube 322, and detect the liquid level in a non-contact manner.

[0088] Understandably, the first and second sealing covers need to be made of infrared-transparent materials, such as glass.

[0089] like Figures 1 to 5 As shown, in one feasible embodiment, the control board 330 includes: an extension circuit 331, which is arranged along the height direction of the housing 310 and connected to the infrared emitting tube 321 and the receiving tube 322; a signal amplification circuit 332, to which the extension circuit 331 is connected; a signal processing circuit 333, to which the signal amplification circuit 332 is connected; and a control chip 334, to which the signal processing circuit 333 is connected.

[0090] In this technical solution, the circuit structure of the control board 330 is further provided. The control board 330 may include an extension line 331, a signal amplification circuit 332, a signal processing circuit 333, and a control chip 334. During use, the extension line 331 is connected to the infrared emitting tube 321 and the receiving tube 322. The extension line 331 is used to receive the level signal fed back by the receiving tube 322. Then, the signal amplification circuit 332 amplifies the analog pulse signal generated by the receiving tube 322 to improve the signal-to-noise ratio. After that, the signal processing circuit 333 converts the amplified analog signal into a standard level digital signal, which is beneficial to signal transmission. Finally, the control chip 334 can determine the liquid level based on the signal emitted by the signal processing circuit 333.

[0091] It is understood that the signal amplification circuit 332 includes, but is not limited to, transistor or MOSFET amplification circuits, comparator circuits, etc., and the signal conditioning circuit 333 includes, but is not limited to, logic gate circuits, Schmitt triggers, etc.

[0092] like Figures 1 to 5 As shown, in one feasible embodiment, the level gauge 300 further includes: a first temperature sensor 340, which is disposed on the housing 310 and connected to the control board 330; and an indicator light 335, which is disposed on the housing 310 and connected to the control board 330.

[0093] In this technical solution, the level gauge 300 may also include a first temperature sensor 340. The first temperature sensor 340 can be used to detect the temperature of the liquid, enriching the functions of the level gauge 300 and enabling the level gauge 300 to have more application scenarios.

[0094] In this technical solution, the level gauge 300 may also include an indicator light 335. The indicator light 335 can indicate the operating status of the level gauge 300. The 1KHz control signal of the infrared emitting tube 321 can be reused to illuminate the indicator light 335. The brightness of the indicator light 335 can be changed by the difference in the duty cycle of the control signal (1% duty cycle when there is no liquid level trigger, and the duty cycle can be set to 3% to 10% when there is a liquid level trigger), achieving the effect of low-cost level gauge 300 status indication. In addition, through logical judgment of the two liquid level states, a fault alarm can be triggered in abnormal states (such as no water at low water level, water at high water level; or any signal being abnormally low or high level), and the user will be notified by the flashing of the level gauge 300 indicator light 335 and the motherboard buzzer.

[0095] In some examples, indicator light 335 uses an LED to indicate the operating status of level gauge 300 or to provide a fault alarm.

[0096] In some examples, the first temperature sensor 340 can be an NTC temperature sensor, which typically uses various encapsulation forms such as metal housing and epoxy resin, and different types and sizes of models can be selected according to specific circumstances.

[0097] like Figures 1 to 5 As shown, in one feasible embodiment, the housing 310 forms a limiting slot 312 on the side opposite to the mounting groove 311, the control board 330 is disposed in the limiting slot 312, the infrared emitting tube 321 is connected to the control board 330 through pins, the receiving tube 322 is connected to the control board 330 through pins; and / or the level gauge 300 further includes: a cover plate, the cover plate is connected to the housing 310 to close the control board 330.

[0098] In this technical solution, the housing 310 is further provided with a design. The housing 310 forms a limiting groove 312 on the side opposite to the mounting groove 311. The control plate 330 is set in the limiting groove 312, which makes the fixation of the control plate 330 more reliable and reduces the probability of the control plate 330 loosening. By sealing the housing 310 with a cover plate, the probability of liquid contamination of the control plate 330 can be reduced, making the use of the level gauge 300 more reliable.

[0099] like Figures 1 to 14 As shown, a fish tank is provided according to a second aspect of the embodiments of this application, including: a tank body 110; a cabinet 120, the tank body 110 being disposed on the cabinet 120; a sewage treatment assembly 130, the sewage treatment assembly 130 including: a sedimentation unit 131, a purification unit 132 and a conveying unit 133 connected in sequence, the sedimentation unit 131 being used to receive sewage conveyed via the tank body 110, the conveying unit 133 being used to obtain circulating water after the sewage has been settled and purified and supplied to the tank body 110; and a level gauge 300 as in any of the above technical solutions, the level gauge 300 being disposed in the conveying unit 133 and arranged along the height direction of the conveying unit 133.

[0100] The fish tank provided in this application embodiment includes a level gauge 300 as described in any of the above technical solutions, and therefore the fish tank possesses all the beneficial effects of the level gauge 300 described in the above technical solutions.

[0101] The fish tank provided in this application embodiment includes a tank body 110, a cabinet 120, a sewage treatment component 130, and a level gauge 300. The sewage treatment component 130 includes a water inlet component 140. The sewage treatment component 130 includes a sedimentation unit 131, a purification unit 132, and a conveying unit 133 connected in sequence. The tank body 110 is used to hold water and raise fish. As the fish are raised for a longer period of time, dirt will be generated in the tank body 110, such as excess fish food and fish waste. As water is added to the tank body 110, the dirt in the tank body 110 will be conveyed to the sewage treatment component 130. The sewage can be first conveyed to the sedimentation unit 131 to achieve preliminary solid-liquid separation after sedimentation. Then the liquid is purified by the purification unit 132. After that, the liquid can be sent back to the tank body 110 through the conveying unit 133. In this way, the sewage circulation treatment of the tank body 110 can be completed, which can reduce the maintenance frequency of the fish tank.

[0102] According to the embodiments of this application, by setting a level gauge 300 inside the conveying unit 133, it is convenient to detect and know the liquid level in the conveying unit 133, so as to control the replenishment of water from the conveying unit 133 to the cylinder 110 and to control the replenishment of external water to the conveying unit 133.

[0103] like Figures 6 to 14 As shown, in one feasible embodiment, the sedimentation unit 131 includes: a sedimentation chamber 1311; an inclined plate 1312, the inclined plate 1312 being inclinedly disposed in the sedimentation chamber 1311; wherein, the sedimentation space is used to receive the sewage output through the cylinder 110, and after the sewage is settled in the sedimentation chamber 1311 by the inclined plate 1312, the liquid overflows into the purification unit 132.

[0104] In this technical solution, the structure of the sedimentation unit 131 is further provided. The sedimentation unit 131 may include a sedimentation chamber 1311 and an inclined plate 1312. Based on this, the sewage overflowing from the fish tank can be supplied to the sedimentation chamber 1311 first, and come into contact with the inclined plate 1312 of the sedimentation chamber 1311. The inclined plate 1312 guides the output water flow. On the one hand, it can transport the overflow water from the fish tank to the bottom of the sedimentation chamber 1311 to facilitate sedimentation. On the other hand, the inclined plate 1312 can suppress the surge of overflow water and reduce noise generation. As sewage is transported into the sedimentation chamber 1311, solid dirt in the sewage can be settled in the sedimentation chamber 1311 under the guidance of the inclined plate 1312. Then, as more sewage is transported, the sedimented overflow water will enter the purification unit 132 for further treatment. The sedimentation unit 131 can remove large particles and high-density impurities from the sewage.

[0105] like Figures 6 to 10As shown, in one feasible embodiment, the purification unit 132 includes: a first purification chamber 1321 and a second purification chamber 1322 connected in sequence, the first purification chamber 1321 being used to receive liquid overflowing from the sedimentation chamber 1311; a plate 1323 having multiple through holes and being disposed on top of the first purification chamber 1321; a third filter unit 1324 disposed at the connection between the first purification chamber 1321 and the sedimentation chamber 1311; a fourth filter unit 1325 and a fifth filter unit 1326 stacked on top of the first purification chamber 1321 and located at the bottom of the plate 1323.

[0106] In this technical solution, the structure of the purification unit 132 is further provided. The purification unit 132 may include a first purification chamber 1321 and a second purification chamber 1322 connected in sequence. After sedimentation, the wastewater can overflow from the sedimentation chamber 1311 into the first purification chamber 1321. During this process, the wastewater can first flow through the third filtration unit 1324, and then be conveyed to the fourth filtration unit 1325 and the fifth filtration unit 1326 through multiple through holes on the plate 1323. Based on this, the third filtration unit 1324 can further remove solid particles from the wastewater, and the plate 1323 can play a role in water equalization. This allows the liquid to be evenly distributed across the fourth filter unit 1325 and the fifth filter unit 1326, and finally flows into the first purification chamber 1321. In this case, most of the solid particles in the liquid delivered to the first purification chamber 1321 will be purified. The liquid will then first pass through the first purification chamber 1321, overflow, and then enter the second purification chamber 1322. The first and second purification chambers 1321 can be filled with purification particles to sterilize the liquid. The liquid after being treated by the first and second purification chambers 1321 can be reused for fish farming. The purified liquid can be overflowed and delivered to the delivery unit 133.

[0107] like Figures 6 to 10 As shown, in one feasible embodiment, the delivery unit 133 includes: a pump chamber 1331 for receiving liquid output via the purification unit 132; a pump body 1332 disposed in the pump chamber 1331; and a circulation pipe 1333, one end of which is connected to the pump body 1332 and the other end of which is connected to the cylinder 110.

[0108] In this technical solution, the structural composition of the conveying unit 133 is further provided. The conveying unit 133 may include a pump chamber 1331, a pump body 1332, and a circulation pipe 1333. Based on this, the reusable liquid after sedimentation and purification can be supplied to the pump chamber 1331 through overflow. Then, by turning on the pump body 1332, the purified liquid can be sent back to the tank 110 through the circulation pipe 1333, thereby reducing the maintenance frequency of the aquarium and making the water quality of the aquarium more balanced, which is conducive to improving the survival rate of fish.

[0109] In some examples, the level gauge 300 is connected to the pump compartment 1331.

[0110] like Figures 6 to 14 As shown, in one feasible embodiment, the fish tank further includes: a water inlet assembly 140, which includes a heating unit 143, a filter unit, and an external water pipe. The external water pipe is connected to the filter unit, the output end of the filter unit is connected to the heating unit 143, and the output end of the heating unit 143 is connected to the conveying unit 133.

[0111] In this technical solution, the fish tank also includes a water inlet assembly 140, which includes a filter unit 141 and an external water pipe 142. During use, the external water pipe 142 can be connected to the user's tap water pipe. When the fish tank needs water replenishment or replacement, the water inlet assembly 140 can be turned on. After the external water passes through the filter unit 141 to remove particulate matter and residual chlorine, it can be transported to the transport unit 133, which then transports the replenished liquid into the tank body 110. Therefore, the fish tank provided in this embodiment allows for water circulation and purification during normal use. When water needs replenishment or replacement, it can be directly replenished through the water inlet assembly 140, providing water that meets the needs of fish husbandry. This makes the fish tank more convenient to use, highly automated, and requires less maintenance.

[0112] In this technical solution, the water inlet assembly 140 also includes a heating unit 143. The water filtered by the filtration unit can be heated by the heating unit 143 to reach the temperature required for fish farming before being supplied to the conveying unit 133, which makes fish farming more convenient.

[0113] like Figure 3 As shown, in one feasible embodiment, a limiting groove 313 is also formed on the housing 310, and the supply pipe of the heating unit 143 is snapped into the limiting groove 313. This arrangement makes the fixing of the output end of the heating unit 143 more reliable and the delivery of heated water into the delivery unit 133 more stable.

[0114] In one feasible embodiment, the heating unit 143 includes: a heating tube 1431, the output end of the filter unit 141 being connected to the heating tube 1431; a second temperature sensor 1432, the second temperature sensor 1432 being disposed at the input end of the heating tube 1431; a third temperature sensor 1433, the third temperature sensor 1433 being disposed at the output end of the heating tube 1431; and a fish tank main control board 150, the fish tank main control board 150 being connected to the second temperature sensor 1432, the third temperature sensor 1433, and the control board 330.

[0115] In this technical solution, the structure of the heating unit 143 is further provided. The heating unit 143 may include a heating tube 1431, a second temperature sensor 1432, and a third temperature sensor 1433. After external water is filtered, it can be transported through the heating tube 1431. During this process, the heating tube 1431 heats the water. By setting the second temperature sensor 1432 and the third temperature sensor 1433 at the input and output ends of the heating tube 1431 respectively, it is convenient to detect the heating effect of the heating unit 143. The second temperature sensor 1432 and the third temperature sensor 1433 are combined with the first temperature sensor 340 set above the level gauge 300 to detect the temperature of the incoming water, the temperature of the heated water, and the temperature of the water transported into the tank 110, so that the water temperature control of fish farming is more precise.

[0116] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0117] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0118] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0119] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A level gauge, characterized in that, include: A housing having a mounting groove formed along its height direction; At least two sets of detection components are provided, with different detection components arranged at intervals along the height direction of the housing. Each detection component includes an infrared emitting tube and a receiving tube, both of which are connected to the inner wall of the mounting groove. The infrared emitting tube and the receiving tube in each detection component are arranged opposite to each other. A control board is disposed on the side of the housing opposite to the mounting groove, and the detection component is connected to the control board.

2. The level gauge according to claim 1, characterized in that, A first recessed groove is formed at the connection between the infrared emitting tube and the inner wall of the mounting groove, and the first recessed groove is connected to the mounting groove. A second recess is formed at the connection between the receiving tube and the inner wall of the mounting groove, and the second recess is connected to the mounting groove.

3. The level gauge according to claim 1, characterized in that, Also includes: An encapsulation layer is disposed at the connection between the infrared emitting tube and the housing, and at the connection between the receiving tube and the housing; and / or A first sealing cover is used to cover the infrared emitting tube; The second sealing cover is used to cover the receiving tube.

4. The level gauge according to claim 1, characterized in that, The control panel has the following features: An extension circuit is provided, which is arranged along the height of the housing and is connected to the infrared emitting tube and the receiving tube. A signal amplification circuit, wherein the extension line is connected to the signal amplification circuit; A signal conditioning circuit, wherein the signal amplification circuit is connected to the signal conditioning circuit; The control chip, and the signal processing circuit is connected to the control chip.

5. The level gauge according to any one of claims 1 to 4, characterized in that, Also includes: A first temperature sensor is mounted on the housing and connected to the control board; Indicator lights are mounted on the housing and connected to the control board.

6. The level gauge according to any one of claims 1 to 4, characterized in that, The housing forms a limiting slot on the side opposite to the mounting groove. The control board is disposed within the limiting slot. The infrared emitting tube is connected to the control board via pins, and the receiving tube is connected to the control board via pins; and / or The level gauge further includes a cover plate connected to the housing to enclose the control panel.

7. A fish tank, characterized in that, include: Cylinder block; The cabinet, wherein the cylinder is mounted on the cabinet; A wastewater treatment assembly includes: a sedimentation unit, a purification unit, and a conveying unit connected in sequence. The sedimentation unit is used to receive wastewater conveyed through a tank, and the conveying unit is used to supply circulating water to the tank after the wastewater has been sedimented and purified. The level gauge as described in any one of claims 1 to 6 is disposed within the conveying unit and arranged along the height direction of the conveying unit.

8. The fish tank according to claim 7, characterized in that, It also includes: a water inlet assembly, which includes a heating unit, a filtration unit and an external water pipe, the external water pipe being connected to the filtration unit, the output end of the filtration unit being connected to the heating unit, and the output end of the heating unit being connected to the conveying unit.

9. The fish tank according to claim 8, characterized in that, A limiting groove is also formed on the housing, and the supply pipe of the heating unit is snapped into the limiting groove.

10. The fish tank according to claim 8, characterized in that, The heating unit includes: A heating element is provided, and the output end of the filter unit is connected to the heating element. A second temperature sensor is disposed at the input end of the heating element; A third temperature sensor is disposed at the output end of the heating tube; The aquarium main control board is connected to the second temperature sensor, the third temperature sensor and the control board.

Images