Liquid level measuring device

Abstract

The utility model discloses a liquid level measuring device which comprises a liquid level meter body and a liquid level meter probe. And the cleaning mechanism is arranged on the liquidometer body and can suck the medium in the container and clean the probe of the liquidometer by using the medium. According to the liquid level meter, the cleaning mechanism is arranged, the medium in the container is used for cleaning the probe of the liquid level meter, scum, sediment or solidified matter attached to the probe can be effectively removed, measurement errors caused by medium adhesion are avoided, and therefore the accuracy of liquid level measurement is remarkably improved.

Description

Technical Field

[0001] This application relates to the technical field of measuring devices, specifically a liquid level measuring device. Background Technology

[0002] In modern industrial production and daily life, liquid level measuring devices are widely used in various containers to monitor the liquid level. These devices are particularly important in fields such as chemical engineering, petroleum, food processing, and water treatment. The accuracy of liquid level measurement directly affects the safety and efficiency of the production process; therefore, developing high-precision liquid level measuring devices has always been a key focus for technical personnel.

[0003] Currently, there are various types of liquid level measuring devices on the market, including float-type, ultrasonic, capacitive, and radar-type. Each device has its own advantages and disadvantages and is suitable for different application scenarios. For example, float-type liquid level gauges have a simple structure and low cost, but they are prone to failure in high-viscosity liquids or liquids containing solid particles. Ultrasonic liquid level gauges can measure non-contactly and are suitable for corrosive liquids, but errors may occur in foamy or steamy environments. Radar liquid level gauges, while highly accurate, are more expensive and require complex installation and calibration in some cases.

[0004] However, regardless of the type of liquid level measuring device, a common problem may arise in practical applications: scum and mixtures in the container solidify and adhere, leading to inaccurate measurements. This is particularly common when handling liquids containing suspended solids, sediments, or easily solidifying substances. For example, in wastewater treatment, the liquid often contains a large number of suspended particles, which may adhere to the measuring probe, affecting the accuracy of the measurement results. Similarly, in the food processing industry, some liquids easily solidify at low temperatures, forming a solid layer that covers the probe, causing measurement errors. Utility Model Content

[0005] Therefore, it is necessary to propose a liquid level measuring device to address the aforementioned technical problems.

[0006] The liquid level measuring device includes: a liquid level gauge body and a liquid level gauge probe;

[0007] The cleaning mechanism, located on the level gauge body, can draw up the medium inside the container and use the medium to clean the level gauge probe.

[0008] In some embodiments, the cleaning mechanism includes:

[0009] A cleaning pump is fixed to the level gauge body;

[0010] The medium inlet pipe is fixed to the level gauge body and connected to the cleaning pump;

[0011] The medium outlet pipe is fixed to the level gauge body and connected to the cleaning pump.

[0012] In some embodiments, the cleaning mechanism further includes:

[0013] The filter, fixed to the level gauge body and connected to the medium inlet pipe, can filter impurities in the medium.

[0014] In some embodiments, the cleaning mechanism further includes:

[0015] The foamer, fixed to the level gauge body and connected to the medium outlet pipe, can generate bubbles in the medium.

[0016] In some embodiments, it also includes:

[0017] The auxiliary measurement component is fixed to the liquid level gauge body and can assist in measuring the liquid level.

[0018] In some embodiments, the auxiliary measurement component includes:

[0019] The fastener is fixed to one side of the level gauge body;

[0020] A float whose density is less than that of the medium inside the container;

[0021] A scale rod is slidably inserted into a fixed component, and one end of the scale rod is connected to a float.

[0022] The identifier is set at a preset position on the fixing component and connected to the liquid level gauge body. The identifier can obtain the current scale of the scale rod and send an electrical signal to the liquid level gauge body.

[0023] In some embodiments, the medium outlet pipe includes a first cleaning pipe and a second cleaning pipe, with the openings of the first cleaning pipe and the second cleaning pipe respectively facing the level gauge probe and the float.

[0024] In some embodiments, it also includes:

[0025] The control panel connects to the level gauge body and the cleaning mechanism. The control panel is suitable for fixing to the outside of the container and can display the level reading and control the operation of the cleaning mechanism.

[0026] This invention provides an improved liquid level measuring device, which has the following advantages compared to the prior art:

[0027] Improved measurement accuracy: By incorporating a cleaning mechanism, the liquid level gauge probe is cleaned using the medium within the container. This effectively removes scum, sediment, or solidified substances adhering to the probe, avoiding measurement errors caused by medium adhesion and significantly improving the accuracy of liquid level measurements. This design is particularly suitable for scenarios involving liquids containing suspended solids, sediments, or easily solidifying liquids, such as wastewater treatment and food processing industries.

[0028] High adaptability: The cleaning mechanism is designed with components such as a cleaning pump, medium inlet pipe, and medium outlet pipe, which can flexibly use the liquid in the container as the cleaning medium, reducing dependence on external cleaning fluid and improving the adaptability of the device under complex working conditions, especially for corrosive or specific process liquid environments.

[0029] Built-in filtration function to prevent secondary pollution: The cleaning mechanism is equipped with a filter that can filter impurities in the medium before cleaning, preventing impurities from flowing back to the probe surface through the cleaning system, further improving the cleaning effect, and avoiding secondary pollution caused by the cleaning process.

[0030] Reduced maintenance costs: The cleaning mechanism adopts a built-in design, which can achieve automatic cleaning during equipment operation, avoiding the need for frequent manual cleaning of the probe, reducing the maintenance cost and workload of the device, and improving the operating efficiency and stability of the production line.

[0031] Enhancing Measurement Accuracy: The introduction of auxiliary measurement components provides an alternative method for liquid level measurement, forming a dual monitoring system with the liquid level gauge itself. Especially during probe failure or cleaning processes, the float-type auxiliary component can serve as a backup measurement method, ensuring continuous and reliable measurement. Furthermore, the combination of the scale rod and the reader makes the liquid level data more intuitive and accurate.

[0032] In summary, this liquid level measuring device, through several innovative designs including a cleaning mechanism, auxiliary measuring components, a filter, a foamer, and a control panel, solves the technical problem of inaccurate measurement under complex working conditions in existing liquid level measuring devices. It not only significantly improves the accuracy and reliability of measurement but also reduces the cost of use and maintenance, making it valuable for a wide range of industrial and domestic applications. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of an exemplary embodiment of this application.

[0034] In the diagram: 1. Level gauge body; 2. Level gauge probe; 31. Cleaning pump; 32. Medium inlet pipe; 331. First cleaning pipe; 332. Second cleaning pipe; 41. Fixing component; 42. Scale rod; 43. Float; 44. Auxiliary guide frame; 45. Identifier. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] As described in the background section, various types of liquid level measuring devices are currently available on the market, including float-type, ultrasonic, capacitive, and radar-type devices. Each of these devices has its own advantages and disadvantages and is suitable for different application scenarios. For example, float-type liquid level gauges have a simple structure and low cost, but they are prone to failure in high-viscosity liquids or liquids containing solid particles. Ultrasonic liquid level gauges can measure non-contactly and are suitable for corrosive liquids, but errors may occur in foamy or steamy environments. Radar liquid level gauges, while highly accurate, are more expensive and require complex installation and calibration in some cases. However, regardless of the type of liquid level measuring device, a common problem may be encountered in practical applications: scum and mixtures in the container solidify and adhere, leading to inaccurate measurements. This is particularly common when dealing with liquids containing suspended solids, sediments, or easily solidifying substances. For example, in wastewater treatment, the liquid often contains a large number of suspended particles, which may adhere to the measuring probe, affecting the accuracy of the measurement results. Similarly, in the food processing industry, some liquids easily solidify at low temperatures, forming a solid layer that covers the probe, leading to measurement errors.

[0039] To address the aforementioned problems, this application proposes a liquid level measuring device, referring to... Figure 1 The device mainly includes: a level gauge body 1, a level gauge probe 2, a cleaning mechanism, an auxiliary measurement component, and a control panel (not shown in the figure). The cleaning mechanism can draw up the medium from the container and use it to clean the level gauge probe 2 and the auxiliary measurement component, preventing scum and mixtures in the medium from solidifying and adhering to the probe, which could lead to inaccurate measurements. The auxiliary measurement component forms a dual monitoring system with the level gauge body 1. Especially during probe measurement failure or cleaning, the float-type auxiliary measurement component can serve as a backup measurement method, ensuring the continuity and reliability of measurements. The control panel improves the ease of reading and operation of the device.

[0040] Specifically, in the exemplary embodiment, the level gauge body 1 is the core structural component of the entire level measurement device, used to install level measurement-related components and provide the system's operation and control interface.

[0041] Furthermore, in the exemplary embodiment, the level gauge body 1 is made of high-strength engineering plastic, which has the characteristics of corrosion resistance, high temperature resistance, and pressure resistance, so as to adapt to various complex working environments such as chemical industry, food processing, and sewage treatment. Its outer surface is treated with an anti-corrosion coating to enhance the durability of the equipment.

[0042] Furthermore, in the exemplary embodiment, the level gauge body 1 is fixedly connected to the inner wall of the container via a flange, thread or other standard interface, and a sealing gasket or O-ring is provided at the interface to ensure good sealing performance in high-pressure or liquid evaporation environments.

[0043] Furthermore, in the exemplary embodiment, the outer shell of the level gauge body 1 is provided with a variety of installation interfaces, including: a probe installation interface for installing the level gauge probe 2 and ensuring that the probe can accurately extend into the container for measurement; a cleaning mechanism interface for fixing components such as the cleaning pump 31, the medium inlet pipe 32, and the medium outlet pipe, facilitating the installation and operation of the cleaning system; and an auxiliary measurement component interface for installing auxiliary components such as the float 43, the scale rod 42, and the identifier 45, forming a collaborative working mechanism with the level measurement probe.

[0044] Furthermore, in the exemplary embodiment, the level gauge body 1 integrates a circuit board for processing electrical signals from the probe and auxiliary measurement components, and for transmitting the level information to an external control panel in real time via a data transmission module (such as a wireless communication module). Additionally, the body is equipped with a power interface to provide stable power to the cleaning pump 31 and other components.

[0045] Specifically, in the exemplary embodiment, the level gauge probe 2 employs a radar principle, utilizing electromagnetic waves or microwaves to perform non-contact measurement of the liquid surface within the container. This probe is suitable for various media, including corrosive liquids, high-viscosity liquids, and mixtures containing suspended particles. The probe housing is made of polytetrafluoroethylene (PTFE), stainless steel, or other corrosion-resistant materials to prevent performance degradation due to media corrosion or temperature variations during long-term use.

[0046] Furthermore, in the exemplary embodiment, the level gauge body 1 and the level gauge probe 2 are tightly connected via internal electrical connections and mounting interfaces. After the probe collects level data, it immediately transmits the signal to the processing module of the level gauge body 1. After data processing, the signal is output to the control panel or other terminals. The level gauge body 1 provides mechanical and electrical support for the level gauge probe 2 and maintains the cleanliness of the probe surface through the periodic operation of the cleaning mechanism, thereby improving the overall stability and measurement accuracy of the device.

[0047] Specifically, in the exemplary embodiment, the cleaning mechanism is a key component of the liquid level measuring device, responsible for keeping the liquid level gauge probe 2 clean to ensure high-precision liquid level measurement. It includes a cleaning pump 31, a media inlet pipe 32, a media outlet pipe, a filter (not shown in the figure), a foamer (not shown in the figure), and a nozzle.

[0048] Furthermore, in the exemplary embodiment, the cleaning pump 31 is the core component of the cleaning mechanism, typically an electric pump capable of rapidly drawing and spraying liquid. This pump is manufactured using corrosion-resistant materials, such as stainless steel or a Teflon coating, to withstand various corrosive liquids. The pump incorporates a high-efficiency motor, capable of adjusting the current to achieve different flow rates to meet the needs of different liquids and working environments. The cleaning pump 31 is equipped with a flow sensor for real-time monitoring of the cleaning flow rate, ensuring that the dirt on the surface of the level gauge probe 2 is thoroughly cleaned during the cleaning process.

[0049] Furthermore, in the exemplary embodiment, the medium inlet pipe 32 and the medium outlet pipe are important components of the level gauge body 1. Both are made of corrosion-resistant materials to ensure they are not easily damaged in harsh environments. The medium inlet pipe 32 is used to transport the liquid inside the container to the cleaning pump 31. A pre-installed filter structure inside the pipe effectively filters suspended particles, preventing them from entering the pump and causing damage. The medium outlet pipe is divided into two parts: a first cleaning pipe 331 and a second cleaning pipe 332, both of which are equipped with nozzles at their ends. The nozzle of the first cleaning pipe 331 faces the level gauge probe 2, releasing the medium onto the probe surface under high pressure for cleaning. The nozzle of the second cleaning pipe 332 faces the float 43 of the auxiliary cleaning component, thereby cleaning the auxiliary cleaning component and preventing inaccurate measurement results.

[0050] Furthermore, in the exemplary embodiment, a filter is installed between the media inlet pipe 32 and the cleaning pump 31, capable of efficiently capturing particulate matter and impurities in the fluid. It is typically made of stainless steel mesh or polypropylene to enhance corrosion resistance. The filter is designed with a detachable structure for easy cleaning and maintenance, ensuring the purity of the cleaning fluid, thereby improving the cleaning effect and avoiding measurement errors caused by impurities.

[0051] Furthermore, in the exemplary embodiment, the foamer is connected to the inlet of the media outlet pipe, which mixes the liquid with bubbles to form foam, enhancing the cleaning effect. The foamer has a gas channel that allows air or other suitable gases to be introduced to generate microbubbles. The impact force of the bubbles in the liquid flow can more effectively break through dirt on the probe surface, enhancing the cleaning power and, in some cases, helping to disperse difficult-to-clean substances such as grease.

[0052] Furthermore, in the exemplary embodiment, the control panel is electrically connected to the cleaning pump 31, enabling the opening and closing of the cleaning pump 31 and the setting of the cleaning cycle through the control panel. The control panel is located externally to the equipment, making it easy to operate. Users can adjust the cleaning frequency and duration according to actual usage to achieve the best cleaning effect. LED indicators on the control panel can display the real-time operating status of the cleaning pump 31, facilitating user operation and monitoring.

[0053] Specifically, in the exemplary embodiment, the auxiliary measurement component in the liquid level measuring device is an important innovative design. Its purpose is to provide a backup, reliable liquid level measurement method to ensure that accurate liquid level data can still be obtained even if the main measurement system fails or is being cleaned. It includes a fixing element 41, a float 43, a scale rod 42, an auxiliary guide frame 44, and a reader 45.

[0054] Furthermore, in the exemplary embodiment, the fastener 41 is typically made of a corrosion-resistant material (e.g., plastic or stainless steel) and has a robust structure that secures the entire auxiliary measuring assembly to one side of the level gauge body 1. The assembly is designed to ensure that it will not shift due to vibration or external impact during operation. The fastener 41 is designed with pre-drilled mounting holes for quick installation and removal, facilitating maintenance and component replacement.

[0055] Furthermore, in the exemplary embodiment, the float 43 is the core component of the auxiliary measurement assembly. Its density is lower than that of the liquid being measured, allowing it to float up and down with changes in liquid level. The float 43 is spherical in shape with a smooth surface to reduce liquid adhesion. The interior of the float 43 can be filled with foam material to increase buoyancy and ensure it does not easily tilt when the liquid level changes. Simultaneously, the material chosen for the float 43 should have good corrosion resistance to meet the needs of different liquids, such as using polyethylene or polytetrafluoroethylene (PTFE).

[0056] Furthermore, in the exemplary embodiment, the embossed or laser-engraved scale rod 42 is slidably mounted on the fixing member 41, and can indicate the liquid level height in real time according to the floating of the float 43. The scale rod 42 should be designed to have good chemical corrosion resistance, be able to adapt to the requirements of the liquid medium, and prevent deformation or damage in high temperature, low temperature or corrosive environments.

[0057] Furthermore, in the exemplary embodiment, the auxiliary guide frame 44 is slidably mounted on the fixing member 41, and the lower end of the auxiliary sliding frame is fixedly connected to the side of the float 43, thereby improving the stability of the float 43 during movement.

[0058] Furthermore, in the exemplary embodiment, the identifier 45 is a key component of the entire auxiliary measurement assembly. It is fixed to a preset position of the fixing member 41 and connected to the level gauge body 1. The identifier 45 is typically composed of a sensor or potentiometer, which can detect the current scale of the scale rod 42 and convert it into an electrical signal to be sent to the level gauge body 1.

[0059] Furthermore, in the exemplary embodiment, the design of the identifier 45 includes the following aspects: sensor type, which can be a magnetostrictive sensor, photoelectric sensor, or resistive sensor, selecting the most suitable technology according to the application scenario; installation position, the identifier 45 is fixed at a preset position on the fixing member 41 to ensure that it is aligned with the movement trajectory of the scale rod 42 to accurately obtain the position of the float 43; data processing, the identifier 45 transmits the acquired position signal to the level gauge body 1 in analog or digital mode, and displays it on the control panel after processing; additional functions and intelligent design, in some advanced designs, the auxiliary measurement components can integrate intelligent functions. For example, a temperature sensor is set to monitor the liquid temperature and combine it with the liquid level data for analysis to enable environmental adaptability adjustment. Or a fault alarm function is set, when the float 43 fails to float effectively or the identifier 45 malfunctions, the system can automatically issue an alarm to notify the user to check.

[0060] With the auxiliary measurement component, the liquid level measuring device achieves a dual measurement mechanism, significantly improving its stability and reliability. Even when the main measurement system malfunctions, this component can still provide users with accurate liquid level data, ensuring the safety and continuity of the production process. Simultaneously, the introduction of intelligent design provides users with a more convenient and efficient operating experience, demonstrating broad application potential and value.

[0061] Specifically, in the exemplary embodiment, in the liquid level measuring device, the control panel is the main interactive interface between the user and the device, undertaking the functions of operation control, data monitoring and information feedback. The control panel is connected to the liquid level gauge body 1 and the cleaning mechanism, and the control panel is suitable for being fixed to the outside of the container.

[0062] Furthermore, in the exemplary embodiments, the control panel typically adopts an ergonomic design, featuring a simple, intuitive appearance and ease of operation. The panel material is selected from corrosion-resistant and aging-resistant plastics or metals, possessing excellent waterproof and dustproof properties to ensure long-term stable operation in various industrial environments. The panel surface is treated with scratch-resistant materials to enhance durability and aesthetics. The design takes user habits into account, resulting in a rational panel layout and clearly defined functional areas.

[0063] Furthermore, in the exemplary embodiment, the control panel's user interface employs a graphical design, equipped with a clear digital display and indicator lights, capable of intuitively displaying information such as liquid level status, cleaning cycle, and operating status. The display is typically of LCD or LED type, offering high visibility and a wide viewing angle, ensuring clear visibility under various lighting conditions.

[0064] Furthermore, in the exemplary embodiment, the liquid level display area of ​​the control panel updates the measurement results of the liquid level gauge probe 2 in real time. In addition to the basic liquid level height, the liquid level change trend can be displayed through digital charts or bar graphs, allowing users to quickly grasp the dynamic situation of the liquid. Moreover, when the auxiliary measurement component locates the liquid level, the control panel displays dual data simultaneously to ensure data accuracy.

[0065] Furthermore, in the exemplary embodiment, the control panel's operating area is equipped with multiple buttons and switches, each used for the following functions: Start / Stop button: Used to control the opening and closing of the cleaning pump 31 to clean the level gauge probe 2 and ensure the accuracy of real-time measurements. Cleaning cycle adjustment: Through a knob or digital input, the user can set the working time and interval of the cleaning pump 31 to adapt to different liquid environments and cleaning needs. Fault reset and alarm button: Used to reset faults after system self-checking and to promptly handle abnormal situations. When the system detects probe obstruction or an abnormal state of the float 43, the control panel will issue an audible and visual alarm, allowing the user to quickly troubleshoot the problem using this button.

[0066] Furthermore, in the exemplary embodiment, the control panel is equipped with multiple indicator lights for real-time feedback on the device status. Different colored indicator lights (such as green, red, and yellow) indicate normal operation, malfunction, and warning status, respectively. In particular, when a malfunction occurs, the control panel will continuously flash or illuminate a red indicator light, accompanied by an audible alert, to ensure timely intervention.

[0067] Furthermore, in the exemplary embodiment, the control panel design should consider future scalability, typically equipped with one or more communication interfaces (such as serial ports, USB interfaces, Ethernet interfaces, etc.) to facilitate data interaction and integration with external control systems or monitoring platforms. Users can use these interfaces for remote monitoring, data logging, and device configuration, thereby enhancing the system's intelligence level.

[0068] Furthermore, in exemplary embodiments, some advanced designs may include a control panel equipped with a built-in microcontroller that supports custom settings and program execution. For example, users can adjust the cleaning frequency and set measurement parameters as needed. Simultaneously, data recording and analysis can be performed via the panel's built-in software, and historical data storage facilitates subsequent process optimization and fault analysis.

[0069] The control panel, with its logical functional layout, intuitive user interface, and rich intelligent design, provides a convenient, safe, and efficient operating experience, enabling users to easily monitor and manage the liquid level measurement device in real time. The panel's design philosophy not only enhances the ease of operation but also provides strong support for users' production activities under complex conditions.

[0070] In summary, this liquid level measuring device, through several innovative designs including a cleaning mechanism, auxiliary measuring components, a filter, a foamer, and a control panel, solves the technical problem of inaccurate measurement under complex working conditions in existing liquid level measuring devices. It not only significantly improves the accuracy and reliability of measurement but also reduces the cost of use and maintenance, making it valuable for a wide range of industrial and domestic applications.

[0071] Finally, it should be noted that the above are merely preferred embodiments of this application and are not intended to limit this application. Although this application 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 this application should be included within the protection scope of this application.

Claims

1. A liquid level measuring device, characterized in that... ,include: Level gauge body and level gauge probe; A cleaning mechanism, disposed on the level gauge body, is capable of drawing up the medium from the container and using the medium to clean the level gauge probe; the cleaning mechanism includes: A cleaning pump is fixed to the level gauge body; The medium inlet pipe is fixed to the liquid level gauge body and connected to the cleaning pump; A medium outlet pipe is fixed to the liquid level gauge body and connected to the cleaning pump; the medium outlet pipe includes a first cleaning pipe and a second cleaning pipe, with the opening of the first cleaning pipe facing the liquid level gauge probe. The filter, fixed to the level gauge body and connected to the medium inlet pipe, is capable of filtering impurities in the medium.

2. The liquid level measuring device according to claim 1, characterized in that... The cleaning mechanism further includes: A foam generator, fixed to the level gauge body and connected to the medium outlet pipe, is capable of generating bubbles in the medium.

3. The liquid level measuring device according to claim 2, characterized in that... It also includes: An auxiliary measurement component, fixed to the liquid level gauge body, can assist in measuring the liquid level.

4. The liquid level measuring device according to claim 3, characterized in that... The auxiliary measurement component includes: A fixing component is attached to one side of the level gauge body; A float with a density less than that of the medium inside the container, and the opening of the second cleaning tube is positioned facing the float; A scale rod is slidably inserted into the fixing member, and one end of the scale rod is connected to the float. The identifier is set at a preset position on the fixing component and connected to the liquid level gauge body. The identifier can obtain the current scale of the scale rod and send an electrical signal to the liquid level gauge body.

5. The liquid level measuring device according to claim 4, characterized in that... It also includes: A control panel is connected to the level gauge body and the cleaning mechanism. The control panel is suitable for fixing to the outside of the container, and can display the level reading and control the operation of the cleaning mechanism.

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