Intelligent liquid level detection system

The intelligent liquid level detection system, utilizing a fixed plate and adjusting screw structure combined with a capacitive liquid level sensor, solves the problem of inconvenient liquid level monitoring in waste liquid tanks and pure water tanks, achieving stable installation and accurate monitoring, and improving the service life and monitoring accuracy of the equipment.

CN224234007UActive Publication Date: 2026-05-12SHENZHEN ZHENGQI ENVIRONMENTAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN ZHENGQI ENVIRONMENTAL TECH CO LTD
Filing Date
2025-05-22
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing liquid level detection devices are inconvenient to install on waste liquid tanks and pure water tanks, resulting in poor monitoring performance. Furthermore, the sensors are susceptible to corrosion, affecting the lifespan and accuracy of the equipment.

Method used

An intelligent liquid level detection system was designed, which utilizes a fixed plate, vertical beam and adjusting screw structure, combined with a capacitive liquid level sensor to achieve stable installation and accurate monitoring, adapt to liquid storage containers of different specifications, and improve the stability of the sensor through bearings and springs.

Benefits of technology

This ensures stable sensor installation, avoids deviations caused by vibration, improves monitoring accuracy and equipment lifespan, and simplifies installation and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an intelligent liquid level detection system which comprises a cabinet body, vertical beams are arranged on the opposite faces of the two sides of the inner circumferential wall of the cabinet body in the vertical direction, and a liquid storage assembly is arranged at the bottom of an inner cavity of the cabinet body; the fixing plate is arranged at the position, corresponding to the liquid storage assembly, between the vertical beams on the two sides, the fixing plate is perpendicular to the vertical beams, a plurality of through holes are formed in the fixing plate in a penetrating mode, and threaded cylinders communicated with the through holes are arranged at the positions of the through holes; according to the utility model, the fixed plate and the vertical beam are matched with the threaded cylinder and the adjusting screw rod, so that the overall mechanical strength is improved, and a mounting interface independent from the outer wall of the barrel body is created. When vibration occurs, displacement deviation of the sensor can be avoided through the mechanical strength of the liquid level sensor, meanwhile, the liquid level sensor can be better attached to the outer surface of a waste water barrel in cooperation with the installation disc and the locking nut, and therefore the liquid level can be better monitored.
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Description

Technical Field

[0001] This utility model relates to the field of water level detection technology for water tanks in water stations, specifically an intelligent liquid level detection system. Background Technology

[0002] In modern water treatment workstations, wastewater tanks and pure water tanks serve as core liquid storage units, and their water level monitoring directly affects the safe operation and resource utilization efficiency of the water treatment system. Wastewater tanks require real-time water level monitoring to prevent overflow and environmental pollution, while pure water tanks require precise water level control to ensure water supply stability. Dynamic feedback of water level data from both tanks is of great significance for equipment linkage control, energy consumption optimization, and fault early warning.

[0003] In existing technologies, level monitoring of waste liquid tanks and pure water tanks typically relies on float-type sensors. These sensors require the probe to be embedded inside the tank or fixed to the outer wall with a bracket to capture the water level signal. However, in practice, the embedded probe method requires frequent opening and closing of the tank, leading to a complex and time-consuming liquid replacement process; the outer wall fixing method, due to limitations in the curvature and material of the tank surface, makes it difficult to ensure installation stability. More importantly, the waste liquid tank contains acidic substances, and prolonged contact can corrode the sensor's sensitive elements, resulting in increased measurement errors and a shortened equipment lifespan. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an intelligent liquid level detection system to solve the technical problem that existing liquid level detection devices are inconvenient to install and connect with the outer wall of waste liquid tanks, resulting in poor liquid level monitoring performance.

[0005] This utility model discloses an intelligent liquid level detection system, comprising: a cabinet body, wherein vertical beams are provided on opposite sides of the inner peripheral wall of the cabinet body along the vertical direction, and a liquid storage component is provided at the bottom of the inner cavity of the cabinet body; a fixing plate, wherein the fixing plate is disposed between the two vertical beams at a position corresponding to the liquid storage component, the fixing plate is perpendicular to the vertical beams, and multiple through holes are provided through the fixing plate, and threaded cylinders communicating with the through holes are provided at the multiple through holes;

[0006] The limiting assembly includes an adjusting screw threadedly connected to the threaded cylinder, a mounting plate located at one end of the adjusting screw, and a liquid level sensor mounted on the side of the mounting plate away from the adjusting screw. A locking nut is threadedly connected to the outer surface of the end of the adjusting screw away from the mounting plate. The liquid level sensor is used to monitor the water level of the liquid storage assembly.

[0007] As a further improvement of this utility model, the mounting plate and the adjusting screw are connected by a bearing, the outer surface of the adjusting screw is connected to the inner wall of the inner ring of the bearing, and the mounting plate is connected to the outer peripheral wall of the outer ring of the bearing.

[0008] As a further improvement of this utility model, the adjusting screw includes a threaded section and a plug-in section. The threaded section is located on one side of the threaded cylinder, and the plug-in section is located on the other side of the threaded cylinder. After the locking nut is threadedly connected to the threaded section, one side of it is in contact with the outer surface of the fixing plate.

[0009] As a further improvement of this utility model, a spring is sleeved on the outer surface of the adjusting screw, the spring is located on the outer surface of the insertion section of the adjusting screw, and the two ends of the spring are limited between the opposing surfaces of the threaded cylinder and the bearing.

[0010] As a further improvement of this utility model, the liquid storage component includes three waste liquid tanks and two pure water tanks. The waste liquid tanks and pure water tanks are the same size, and the waste liquid tanks and pure water tanks are arranged at the bottom of the inner cavity of the cabinet body.

[0011] There are five liquid level sensors, three of which are attached to the outer surface of the three waste liquid tanks near the top, and two of which are attached to the outer surface of the two pure water tanks near the bottom.

[0012] As a further improvement of this utility model, a limiting plate is provided at the bottom of the inner cavity of the cabinet body at a position corresponding to the waste liquid tank and the pure water tank. The side view of the limiting plate is a right-angled triangle and is used to limit and fix the bottom of the waste liquid tank and the pure water tank on both sides.

[0013] As a further improvement of this utility model, the fixing plate is provided with connecting plates on both sides near the vertical beam, and each connecting plate is provided with mounting holes. The fixing plate is connected and fixed to the vertical beam by bolts through the connecting plates and mounting holes.

[0014] As a further improvement of this utility model, the opposing surfaces of the vertical beams on both sides are designed with concave structures, the thickness of the fixing plate plus the width of the connecting plate is less than the width of the groove in the vertical beam, and multiple screw holes are provided at the bottom of the groove in the vertical beam.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In this invention, the overall mechanical strength is enhanced by the fixed plate and vertical beam combined with the threaded cylinder and adjusting screw, and an installation interface independent of the outer wall of the tank is created. When vibration occurs, its mechanical strength prevents sensor displacement deviation. Simultaneously, the mounting plate and locking nut ensure better contact between the liquid level sensor and the outer surface of the wastewater tank, thereby improving liquid level monitoring. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model after it has been opened from the front.

[0019] Figure 2 This is a schematic diagram of the overall side sectional view of the present invention;

[0020] Figure 3 This is a side sectional view of the adjusting screw structure of this utility model;

[0021] Figure 4 This is a schematic diagram of one side of the three-dimensional structure of the fixing plate of this utility model;

[0022] Figure 5 This is a schematic diagram of the other side of the three-dimensional structure of the fixing plate of this utility model.

[0023] In the diagram: 1. Cabinet body; 11. Vertical beam; 12. Limiting plate; 2. Fixing plate; 21. Through hole; 22. Threaded cylinder; 23. Connecting plate; 24. Mounting hole; 3. Limiting assembly; 31. Adjusting screw; 32. Bearing; 33. Mounting plate; 34. Liquid level sensor; 35. Spring; 36. Locking nut; 4. Liquid storage assembly; 41. Waste liquid tank; 42. Pure water tank. Detailed Implementation

[0024] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this technology, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0027] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] Please see Figure 1-5 The present invention discloses an intelligent liquid level detection system, comprising: a cabinet body 1, wherein vertical beams 11 are provided on opposite sides of the inner peripheral wall of the cabinet body 1 along the vertical direction, and a liquid storage component 4 is provided at the bottom of the inner cavity of the cabinet body 1; a fixing plate 2, wherein the fixing plate 2 is located between the two vertical beams 11 and at a position corresponding to the liquid storage component 4, the fixing plate 2 is perpendicular to the vertical beams 11, and multiple through holes 21 are provided through the fixing plate 2, and a threaded cylinder 22 communicating with the through hole 21 is provided at each of the multiple through holes 21;

[0029] The limiting component 3 includes an adjusting screw 31 threadedly connected to the threaded cylinder 22, a mounting plate 33 located at one end of the adjusting screw 31, and a liquid level sensor 34 mounted on the side of the mounting plate 33 away from the adjusting screw 31. A locking nut 36 is threadedly connected to the outer surface of the end of the adjusting screw 31 away from the mounting plate 33. The liquid level sensor 34 is used to monitor the water level of the liquid storage component 4. The liquid level sensor 34 is a capacitive liquid level sensor 34, and its model number is C2010NO.

[0030] It is important to explain the technical feature that the fixed plate 2 has multiple through holes 21, and each of the multiple through holes 21 is provided with a threaded cylinder 22 that communicates with the through hole 21. This feature indicates that the threaded cylinder 22 is not an additional part independent of the fixed plate 2, but is coaxially connected to the through hole 21 through welding, interference fit or other means, so that each through hole 21 is provided with a complete internal thread channel, thereby realizing the axial positioning function of the adjusting screw 31.

[0031] This design allows for precise control of the vertical position of the sensor probe through a threaded engagement structure. The locking nut 36 ensures that the adjusted position is fixed, enabling the same detection system to be adapted to different specifications of liquid storage containers. It also facilitates batch installation and maintenance, improving the versatility and installation efficiency of the detection system.

[0032] Please see Figure 3 and Figure 4 In this embodiment, the mounting plate 33 and the adjusting screw 31 are connected by a bearing 32, the outer surface of the adjusting screw 31 is connected to the inner wall of the inner ring of the bearing 32, and the mounting plate 33 is connected to the outer peripheral wall of the outer ring of the bearing 32.

[0033] This design prevents the level sensor 34 and the mounting plate 33 from rotating simultaneously when the adjusting screw 31 is turned, thus preventing the connecting wires on the level sensor 34 from getting tangled in itself when the adjusting screw 31 is turned.

[0034] The adjusting screw 31 includes a threaded section and a plug-in section. The threaded section is located on one side of the threaded cylinder 22, and the plug-in section is located on the other side of the threaded cylinder 22. After the locking nut 36 is threadedly connected to the threaded section, one side of it is in contact with the outer surface of the fixing plate 2. This design allows the adjusting screw 31 to be better limited and fixed through the threaded cylinder 22 and the locking nut 36, thereby more stably limiting and fixing the liquid level sensor 34 and preventing it from shifting.

[0035] A spring 35 is sleeved on the outer surface of the adjusting screw 31. The spring 35 is located on the outer surface of the insertion section of the adjusting screw 31. The two ends of the spring 35 are limited between the opposing surfaces of the threaded cylinder 22 and the bearing 32. This design can further limit the stability of the adjusting screw 31 to a certain extent through the rebound force of the spring 35, making the liquid level sensor 34 more stable.

[0036] Please see Figure 1 and Figure 2 It should be noted that the liquid storage component 4 includes three waste liquid tanks 41 and two pure water tanks 42. The waste liquid tanks 41 and pure water tanks 42 are the same size, and the waste liquid tanks 41 and pure water tanks 42 are arranged at the bottom of the inner cavity of the cabinet body 1.

[0037] There are five liquid level sensors 34. Three of them are attached to the outer surface of the three waste liquid tanks 41 near the top, and two of them are attached to the outer surface of the two pure water tanks 42 near the bottom. This design allows the liquid level sensors near the top of the waste liquid tanks 41 to detect when the wastewater is about to overflow and issue an alarm to remind the staff to drain the water. At the same time, when the water in the pure water tanks 42 is about to run out, the liquid level sensors near the bottom of the tanks 42 can detect when the water is about to run out and issue an alarm to remind the staff to add water.

[0038] A limiting plate 12 is provided at the bottom of the inner cavity of the cabinet body 1, corresponding to the positions of the waste liquid tank 41 and the pure water tank 42. The side view of the limiting plate 12 is a right-angled triangle, and it is used to limit and fix the bottom sides of the waste liquid tank 41 and the pure water tank 42. This design allows the waste water tank and the pure water tank 42 placed in the cabinet body 1 to be better limited and fixed by the limiting plate 12, making them more stable and preventing the water in the waste water tank and the pure water tank 42 from shaking and affecting the liquid level monitoring.

[0039] Please see Figure 2 and Figure 5 Specifically, the fixing plate 2 is provided with connecting plates 23 on both sides near the vertical beam 11. The connecting plates 23 are provided with mounting holes 24. The fixing plate 2 is connected and fixed to the vertical beam 11 by bolts through the connecting plates 23 and mounting holes 24.

[0040] Both sides of the vertical beams 11 have concave structures on their opposite sides. The thickness of the fixing plate 2 plus the width of the connecting plate 23 is less than the width of the groove in the vertical beam 11. Multiple screw holes are provided at the bottom of the groove in the vertical beam 11.

[0041] This design allows the fixing plate 2 to be better installed and connected with the vertical beam 11. First, insert the connecting plates 23 on both sides of the fixing plate 2 into the grooves on the vertical beam 11, align the mounting holes 24 with the screw holes, and then screw in the screws to fix it.

[0042] The above description is merely an embodiment of this utility model and is 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, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. An intelligent liquid level detection system, characterized in that, include: The cabinet body (1) has vertical beams (11) on both sides of the inner peripheral wall of the cabinet body (1) in the vertical direction, and a liquid storage component (4) is provided at the bottom of the inner cavity of the cabinet body (1). A fixing plate (2) is located between the two vertical beams (11) and at a position corresponding to the liquid storage component (4). The fixing plate (2) is perpendicular to the vertical beam (11). Multiple through holes (21) are provided on the fixing plate (2). A threaded cylinder (22) communicating with the through hole (21) is provided at each of the multiple through holes (21). The limiting component (3) includes an adjusting screw (31) threadedly connected to the threaded cylinder (22), a mounting plate (33) located at one end of the adjusting screw (31), and a liquid level sensor (34) mounted on the side of the mounting plate (33) away from the adjusting screw (31). A locking nut (36) is threadedly connected to the outer surface of the end of the adjusting screw (31) away from the mounting plate (33). The liquid level sensor (34) is used to monitor the water level of the liquid storage component (4).

2. The intelligent liquid level detection system according to claim 1, characterized in that: The mounting plate (33) and the adjusting screw (31) are connected by a bearing (32). The outer surface of the adjusting screw (31) is connected to the inner wall of the inner ring of the bearing (32), and the mounting plate (33) is connected to the outer peripheral wall of the outer ring of the bearing (32).

3. The intelligent liquid level detection system according to claim 1, characterized in that: The adjusting screw (31) includes a threaded section and a plug section. The threaded section is located on one side of the threaded cylinder (22), and the plug section is located on the other side of the threaded cylinder (22). After the locking nut (36) is threadedly connected to the threaded section, one side of it is in contact with the outer surface of the fixing plate (2).

4. The intelligent liquid level detection system according to claim 3, characterized in that: A spring (35) is sleeved on the outer surface of the adjusting screw (31). The spring (35) is located on the outer surface of the insertion section of the adjusting screw (31). The two ends of the spring (35) are limited between the opposing surfaces of the threaded cylinder (22) and the bearing (32).

5. The intelligent liquid level detection system according to claim 1, characterized in that: The liquid storage component (4) includes three waste liquid tanks (41) and two pure water tanks (42). The waste liquid tanks (41) and the pure water tanks (42) are the same size. The waste liquid tanks (41) and the pure water tanks (42) are arranged at the bottom of the inner cavity of the cabinet body (1). There are five liquid level sensors (34), three of which are attached to the outer surface of the three waste liquid tanks (41) near the top, and two of which are attached to the outer surface of the two pure water tanks (42) near the bottom.

6. The intelligent liquid level detection system according to claim 5, characterized in that: The cabinet body (1) has a limiting plate (12) at the bottom of the inner cavity corresponding to the waste liquid tank (41) and the pure water tank (42). The side view of the limiting plate (12) is a right triangle and is used to limit and fix the bottom of the waste liquid tank (41) and the pure water tank (42) on both sides.

7. The intelligent liquid level detection system according to claim 1, characterized in that: The fixing plate (2) is provided with connecting plates (23) on both sides near the vertical beam (11). The connecting plates (23) are provided with mounting holes (24). The fixing plate (2) is connected and fixed to the vertical beam (11) by bolts through the connecting plates (23) and mounting holes (24).

8. The intelligent liquid level detection system according to claim 7, characterized in that: The opposing surfaces of the vertical beams (11) on both sides are designed with concave structures. The thickness of the fixing plate (2) plus the width of the connecting plate (23) is less than the width of the groove in the vertical beam (11). Multiple screw holes are provided at the bottom of the groove in the vertical beam (11).