An electrode type liquid level controller

By improving the structural design of the liquid level controller, flexible adjustment of the probe rod and protection of the electrode rod were achieved, solving the problems of inflexible installation of existing liquid level controllers and easy adhesion of impurities to the electrode rod, thus improving detection accuracy and equipment stability.

CN224416180UActive Publication Date: 2026-06-26ZHONGYI KECHUANG (BEIJING) AUTOMATION INSTRUMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGYI KECHUANG (BEIJING) AUTOMATION INSTRUMENT CO LTD
Filing Date
2025-07-04
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing liquid level controller probe is fixedly connected to the controller body, and the installation structure is not flexible enough. It is difficult to adjust the height of the probe according to actual needs, which affects the accuracy of liquid level detection. At the same time, impurities are easily stuck to the electrode rod in the sewage tank, affecting the measurement results.

Method used

An electrode-type liquid level controller was designed, which adopts an electrical cavity, mounting plate, probe, electrode plate, adjusting clamp, clamping bolt, connecting wire, wire placement groove, junction box, and plug interface to realize flexible adjustment of the probe and electrical connection. The accuracy and stability of detection are improved by the structure of protective tube, pressure balance hole, protective tube connecting flange, and screen.

Benefits of technology

It improves the adaptability and detection accuracy of the level controller, reduces maintenance costs, extends the service life of the probe and protective tube, and ensures the stability of the circuit connection and the reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electrode formula liquid level controller, aims at solving the problem of the existing product probe rod installation inflexible, wire arrangement is not reasonable, protection and installation are inconvenient and so on, the liquid level controller top is equipped with electrical cavity, and its lateral surface has electrical interface, and below has the mounting seat, and the mounting disc ring of electrical cavity top is equipped with the probe rod, and the bottom has the electrode sheet, and the inside of mounting disc has the adjusting clamp, and it is convenient to adjust the probe rod position interval, and the wire of probe rod top is connected with the wire connection disc plug -in interface electrically through the wire placement groove, and the control ware below's protective tube is connected with the protective tube connection flange thread connection, and the bottom is equipped with the screen, and the protective tube is stainless steel material and has the pressure balance hole, and the mounting seat below is equipped with the mounting flange for fixed, and the liquid level controller improves the liquid level detection accuracy, equipment operation stability, and the installation and maintenance are convenient, and have good application prospect.
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Description

Technical Field

[0001] This utility model belongs to the technical field of liquid level control, specifically relating to an electrode-type liquid level controller. Background Technology

[0002] Electrode-type liquid level controllers are automated devices used to monitor and control the liquid level in containers. They use electrode rods as detection elements and the conductivity of liquids to sense changes in liquid level. When the liquid level reaches the position of the electrode rod, the electrode conducts the circuit, triggering the controller to send a signal, which in turn controls the actions of actuators such as pumps and valves, thereby achieving automatic adjustment and control of the liquid level. They are characterized by simple structure, convenient installation, and rapid response, and are widely used in industrial fields such as chemical, water treatment, and food industries that require liquid level monitoring.

[0003] However, the probe of the existing liquid level controller is fixedly connected to the controller body, and the installation structure is not flexible enough. It is difficult to adjust the height of the probe according to actual needs, which affects the accuracy of liquid level detection. At the same time, the electrode rod is prone to sticking to impurities in the sewage tank, affecting the measurement results. Utility Model Content

[0004] The purpose of this invention is to provide an electrode-type liquid level controller to solve the problems mentioned in the background art, such as the probe rod being fixedly connected to the controller body, the lack of flexible installation structure, the difficulty in adjusting the height of the probe rod according to actual needs, which affects the accuracy of liquid level detection, and the easy adhesion of impurities to the electrode rod in the sewage tank, affecting the measurement results.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electrode-type liquid level controller, comprising a controller body;

[0006] An electrical cavity is provided at the top of the controller body, an electrical interface is provided on the side of the electrical cavity, and a mounting base is provided at the bottom of the controller body;

[0007] An installation plate is provided at the top of the electrical cavity, and probes are arranged in a circular array inside the installation plate. Electrode plates are provided at the bottom of the probes.

[0008] Preferably, an adjusting clamp is arranged in a circular array inside the mounting plate, and a clamping bolt is arranged on the outer side of the adjusting clamp. The probe is fixedly connected to the mounting plate through the adjusting clamp.

[0009] Preferably, a connecting wire is provided at the top of the probe rod, and a wire placement groove is arranged in a ring array inside the mounting plate.

[0010] Preferably, a junction box is provided at the center of the mounting plate, and an array of plug interfaces are arranged inside the junction box. The connecting wires are electrically connected to the junction box through the plug interfaces.

[0011] Preferably, a washer ring is provided at the inner side of the adjusting clamp, and the washer ring is made of artificial rubber.

[0012] Preferably, a protective tube is provided at the lower part of the controller body, a pressure balancing hole is provided at the upper side of the protective tube, and a protective tube connecting flange is provided at the bottom of the protective tube, and the protective tube is threadedly connected to the protective tube connecting flange.

[0013] Preferably, a screen is provided at the bottom of the protective tube, and the screen is threadedly connected to the protective tube.

[0014] Preferably, a mounting flange is provided below the mounting base, and the controller body is fixed to the installation position through the mounting flange. The protective tube is made of stainless steel.

[0015] Compared with the prior art, the present invention provides an electrode-type liquid level controller, which has the following advantages:

[0016] The installation utilizes an electrical cavity, mounting plate, probe, electrode plate, adjusting clamp, clamping bolts, connecting wires, wire placement slots, junction box, connector, and gasket. The mounting plate contains an internal annular array of adjusting clamps, secured by external clamping bolts. This allows the probe to be flexibly adjusted in position and spacing on the mounting plate according to actual liquid level detection needs. This adjustability significantly improves the adaptability of the liquid level controller to different application scenarios, better meeting diverse liquid level detection requirements and enhancing detection accuracy. The connecting wires at the top of the probe can be neatly arranged along the wire placement slots in the internal annular array of the mounting plate, avoiding tangled wires. The design addresses the issue of tangled wires. Meanwhile, the wire placement slot provides a fixed routing space for the connecting wires. The junction box in the center of the mounting plate and the array of connectors allow for orderly electrical connections between the connecting wires and the junction box, ensuring the stability and reliability of the circuit connection. This facilitates equipment installation, debugging, and subsequent maintenance. The artificial rubber gasket inside the adjusting clamp acts as a buffer and protector between the probe and the adjusting clamp. The elasticity of the artificial rubber material prevents damage to the probe from hard contact when fixing it, thus extending the probe's lifespan and reducing equipment maintenance costs.

[0017] The design incorporates a protective tube, pressure balancing hole, protective tube connecting flange, and screen. The pressure balancing hole, located on the upper side of the protective tube, effectively balances the pressure inside and outside the tube. During liquid level detection, the internal pressure of the protective tube may become abnormal due to factors such as changes in liquid pressure. The pressure balancing hole ensures that the pressure inside and outside the protective tube remains consistent, avoiding detection errors caused by pressure differences and improving the accuracy and stability of liquid level detection. The protective tube is connected to the protective tube connecting flange at the bottom of the mounting flange using a threaded connection. This connection method is very convenient for installation and disassembly, allowing for quick and accurate installation of the protective tube during equipment installation. During later maintenance, if the protective tube is damaged or needs inspection, it can be easily unscrewed from the protective tube connecting flange for easy repair or replacement, reducing maintenance costs and difficulty. The screen, threaded at the bottom of the protective tube, filters the liquid entering the tube, effectively blocking impurities and particles to prevent them from entering the tube and causing blockages, thus affecting the electrode plate's detection of the liquid level. Simultaneously, the threaded connection facilitates regular disassembly, cleaning, or replacement of the screen, ensuring its filtering effect remains good and extending the service life of the entire liquid level control system. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the protective tube in this utility model.

[0020] Figure 3 This is a schematic diagram of the installation disk in this utility model.

[0021] Figure 4 This is a schematic diagram of the wire connection structure in this utility model.

[0022] In the diagram: 1. Controller body; 2. Mounting base; 3. Protective tube; 4. Screen; 5. Mounting flange; 6. Electrical cavity; 7. Protective tube connection flange; 8. Electrical interface; 9. Probe; 10. Mounting plate; 11. Electrode plate; 12. Connecting wire; 13. Clamp; 14. Washer ring; 15. Hoop bolt; 16. Wire placement groove; 17. Terminal block; 18. Plug interface; 19. Pressure balance hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figure 1-4 An electrode-type liquid level controller is shown, including a controller body 1;

[0025] An electrical cavity 6 is provided at the top of the controller body 1, an electrical interface 8 is provided on the side of the electrical cavity 6, and a mounting base 2 is provided at the bottom of the controller body 1;

[0026] An installation plate 10 is provided at the top of the electrical cavity 6, and probe rods 9 are arranged in a ring array inside the installation plate 10. Electrode plates 11 are provided at the bottom of the probe rods 9.

[0027] An adjusting clamp 13 is arranged in a ring array inside the mounting plate 10, and a clamping bolt 15 is arranged on the outside of the adjusting clamp 13. The probe 9 is fixedly connected to the mounting plate 10 through the adjusting clamp 13.

[0028] A connecting wire 12 is provided at the top of the probe rod 9, and a wire placement groove 16 is arranged in a ring array inside the mounting plate 10.

[0029] A junction box 17 is located in the middle of the mounting plate 10. An array of connectors 18 is arranged inside the junction box 17. The connecting wires 12 are electrically connected to the junction box 17 through the connectors 18.

[0030] A washer 14 is provided on the inner side of the adjusting clamp 13. The washer 14 is made of artificial rubber.

[0031] A protective tube 3 is provided at the lower part of the controller body 1. A pressure balance hole 19 is provided on the upper side of the protective tube 3. A protective tube connecting flange 7 is provided at the bottom of the protective tube 3. The protective tube 3 and the protective tube connecting flange 7 are threadedly connected.

[0032] A screen 4 is installed at the bottom of the protective tube 3, and the screen 4 is threadedly connected to the protective tube 3.

[0033] A mounting flange 5 is provided below the mounting base 2. The controller body 1 is fixed to the installation position through the mounting flange 5. The protective tube 3 is made of stainless steel.

[0034] In this embodiment, the specific implementation steps of an electrode-type liquid level controller are as follows: The controller body 1 with the mounting base 2 is fixed to the installation position via the mounting flange 5 below the mounting base 2. During installation, ensure that the connection between the mounting flange 5 and the installation position is stable to ensure the stable operation of the subsequent equipment. The stainless steel protective tube 3 is threaded to the protective tube connecting flange 7 at the bottom of the mounting flange 5. When connecting, pay attention to aligning the threads to ensure a tight connection. At the same time, the pressure balance hole 19 on the upper side of the protective tube 3 should be kept unobstructed to balance the pressure inside and outside the protective tube. The screen 4 is threaded to the bottom of the protective tube 3. The screen 4 can effectively block debris from entering the interior of the protective tube 3 to prevent blockage and affect the liquid level detection. According to the actual liquid level detection requirements, adjust the adjusting clamp 13 arranged in a ring array inside the mounting plate 10, loosen the clamping bolt 15, place the probe 9 inside the adjusting clamp 13, and adjust the position of the probe 9 through the adjusting clamp 13. After adjustment, tighten the clamping bolt 15 so that the probe 9 is fixedly connected to the mounting plate 10 through the adjusting clamp 13. The inner gasket 14 of the 13 is made of artificial rubber to protect the probe 9 and prevent it from being damaged by direct hard contact with the adjusting clamp 13. The connecting wire 12 at the top of the probe 9 is arranged along the wire placement groove 16 arranged in a ring array inside the mounting plate 10 to make the wires neat and orderly. Then, the connecting wire 12 is electrically connected to the plug interface 18 of the junction box 17 in the middle position inside the mounting plate 10 to ensure that the circuit connection is normal. The power is turned on through the electrical interface 8 on the side of the electrical cavity 6 to start the entire electrode liquid level controller. When the equipment is in the environment of the liquid level to be detected, the electrode plate 11 at the bottom of the protective tube 3 is in contact with the liquid. Since the liquid is conductive, when the liquid level changes, the contact between the electrode plate 11 at different positions and the liquid is different. The signal is transmitted to the relevant circuit inside the controller body 1 through the connecting wire 12 to realize the detection of the liquid level. The screen 4 at the bottom of the protective tube 3 is checked regularly. If the screen 4 is blocked by debris, it can be unscrewed from the protective tube 3 for cleaning or replacement to ensure that the inside of the protective tube 3 is unobstructed and the liquid level detection is accurate.

[0035] like Figure 1-4As shown, a mounting plate 10 is provided at the top of the electrical cavity 6. A probe rod 9 is arranged in a ring array inside the mounting plate 10. An electrode plate 11 is provided at the bottom of the probe rod 9. An adjusting clamp 13 is arranged in a ring array inside the mounting plate 10. A clamping bolt 15 is provided on the outer side of the adjusting clamp 13. The probe rod 9 is fixedly connected to the mounting plate 10 through the adjusting clamp 13. A connecting wire 12 is provided at the top of the probe rod 9. A wire placement groove 16 is arranged in a ring array inside the mounting plate 10. A terminal block 17 is provided in the middle of the mounting plate 10. A plug interface 18 is arranged in an array inside the terminal block 17. The connecting wire 12 is electrically connected to the terminal block 17 through the plug interface 18. A gasket 14 is provided on the inner side of the adjusting clamp 13. The gasket 14 is made of artificial rubber.

[0036] Preferably, the mounting plate 10 has an internal annular array of adjusting clamps 13, which are fixed by external clamping bolts 15. This allows the probe 9 to be flexibly adjusted in position and spacing on the mounting plate 10 according to actual liquid level detection needs. This adjustability greatly improves the adaptability of the liquid level controller to different application scenarios, better meets diverse liquid level detection requirements, and improves detection accuracy. The connecting wire 12 at the top of the probe 9 can be neatly arranged along the wire placement groove 16 in the internal annular array of the mounting plate 10, avoiding the problem of messy and tangled wires. At the same time, the wire placement groove 16 provides a fixing for the connecting wire 12. The wiring tray 17 in the middle of the mounting plate 10 and the array of plug interfaces 18 allow the connecting wires 12 to be electrically connected to the wiring tray 17 through the plug interfaces 18 in an orderly manner, ensuring the stability and reliability of the circuit connection and facilitating the installation, debugging and later maintenance of the equipment. The artificial rubber pad ring 14 set on the inner side of the adjusting clamp 13 plays a buffering and protective role between the probe rod 9 and the adjusting clamp 13. The artificial rubber material has a certain degree of elasticity, which can prevent the adjusting clamp 13 from damaging the probe rod 9 due to hard contact when fixing the probe rod 9, thereby extending the service life of the probe rod 9 and reducing the maintenance cost of the equipment.

[0037] like Figure 1 and Figure 2 As shown, a protective tube 3 is provided at the lower part of the controller body 1, a pressure balance hole 19 is provided at the upper side of the protective tube 3, a protective tube connecting flange 7 is provided at the bottom of the protective tube 3, the protective tube 3 is threadedly connected to the protective tube connecting flange 7, and a screen 4 is provided at the bottom of the protective tube 3, the screen 4 is threadedly connected to the protective tube 3.

[0038] Preferably, the pressure balancing hole 19 located on the upper side of the protective tube 3 can effectively balance the pressure inside and outside the protective tube 3. During the liquid level detection process, the internal pressure of the protective tube may become abnormal due to factors such as changes in liquid pressure. The pressure balancing hole 19 can keep the pressure inside and outside the protective tube consistent, avoiding detection errors caused by pressure differences and improving the accuracy and stability of liquid level detection. The protective tube 3 and the protective tube connecting flange 7 at the bottom of the mounting flange 5 are connected by threads. This connection method is very convenient for installation and disassembly. During equipment installation, the installation of the protective tube 3 can be completed quickly and accurately. During later maintenance, if the protective tube 3 is damaged or needs to be inspected, it can be easily unscrewed from the protective tube connecting flange 7 for easy repair, replacement, and other operations, reducing maintenance costs and difficulty. The screen 4 connected by threads at the bottom of the protective tube 3 can filter the liquid entering the protective tube 3. It can effectively block impurities, particles, and other substances in the liquid, preventing them from entering the protective tube and causing blockage, which would affect the detection of liquid level by the electrode plate. At the same time, the threaded connection method facilitates the periodic disassembly, cleaning, or replacement of the screen 4, ensuring that its filtration effect is always good and extending the service life of the entire liquid level control system.

[0039] like Figure 1-4 As shown, a mounting flange 5 is provided below the mounting base 2. The controller body 1 is fixed to the installation position through the mounting flange 5. The protective tube 3 is made of stainless steel.

[0040] Optionally, a mounting flange 5 is provided below the mounting base 2, allowing the controller body 1 to be easily and quickly fixed to the installation location via the mounting flange 5. The mounting flange 5 provides a standard installation interface, which is highly adaptable to various installation environments. It can be easily installed in different locations such as tanks and pipelines. At the same time, this connection method ensures the stability of the controller body 1. During equipment operation, it is not easy to loosen due to vibration or other factors, ensuring that the liquid level controller can work stably and reliably. The protective tube 3 is made of stainless steel. Stainless steel has excellent corrosion resistance. In the liquid level detection environment, it often comes into contact with various corrosive liquids. The stainless steel protective tube 3 can effectively resist the corrosion of these liquids, greatly extending the service life of the protective tube 3 and reducing equipment failure and maintenance costs caused by protective tube corrosion damage. In addition, the high strength of stainless steel can provide reliable protection for internal components such as electrodes, ensuring the integrity and stability of the entire liquid level controller structure.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electrode-type liquid level controller, comprising a controller body (1); An electrical cavity (6) is provided at the top of the controller body (1), an electrical interface (8) is provided at the side of the electrical cavity (6), and a mounting base (2) is provided at the bottom of the controller body (1). characterized in that An installation plate (10) is provided at the top of the electrical cavity (6), and a probe rod (9) is arranged in a ring array inside the installation plate (10). An electrode plate (11) is provided at the bottom of the probe rod (9).

2. An electrode level controller according to claim 1, characterised in that: An adjusting clamp (13) is arranged in a ring array inside the mounting plate (10), and a clamping bolt (15) is arranged on the outside of the adjusting clamp (13). The probe (9) is fixedly connected to the mounting plate (10) through the adjusting clamp (13).

3. An electrode level controller according to claim 2, wherein: A connecting wire (12) is provided at the top of the probe (9), and a wire placement groove (16) is arranged in a ring array inside the mounting plate (10).

4. An electrode level controller according to claim 3, wherein: A junction box (17) is provided in the middle of the installation plate (10), and an array of plug interfaces (18) is provided in the middle of the junction box (17). The connecting wire (12) is electrically connected to the junction box (17) through the plug interfaces (18).

5. An electrode-type liquid level controller according to claim 4, characterized in that: A washer (14) is provided on the inner side of the adjusting clamp (13), and the washer (14) is made of artificial rubber.

6. The electrode-type liquid level controller according to claim 1, characterized in that: A protective tube (3) is provided at the lower part of the controller body (1), a pressure balance hole (19) is provided at the upper side of the protective tube (3), and a protective tube connecting flange (7) is provided at the bottom of the protective tube (3). The protective tube (3) is threadedly connected to the protective tube connecting flange (7).

7. An electrode-type liquid level controller according to claim 6, characterized in that: A screen (4) is provided at the bottom of the protective tube (3), and the screen (4) is threadedly connected to the protective tube (3).

8. An electrode-type liquid level controller according to claim 7, characterized in that: An installation flange (5) is provided below the mounting base (2). The controller body (1) is fixed to the installation position through the installation flange (5). The protective tube (3) is made of stainless steel.