Anti-clogging liquid level transmitter
By adopting a slidable filter plate structure and a settling chamber scraper design in the level transmitter, the problems of cumbersome disassembly and clogging of fixed filter plates are solved, enabling rapid replacement of filter plates and efficient operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HECHUANG AUTOMATIC CONTROL INSTR CO LTD
- Filing Date
- 2025-10-11
- Publication Date
- 2026-07-14
AI Technical Summary
The filter plates of existing level transmitters are usually fixed, which is cumbersome to disassemble and replace, has poor flexibility, and is easily blocked by viscous substances or particles, affecting the continuity and accuracy of the measurement.
A clog-resistant level transmitter was designed, which adopts a slidable filter plate structure. Combined with pull rings, connecting frames and limiting blocks, it enables quick installation and removal of the filter plate. The settling chamber and scraper structure reduce impurity deposition and extend the equipment life.
It enables quick replacement and cleaning of filter plates, reduces the risk of clogging, improves the flexibility of the equipment, the continuity and accuracy of measurements, and extends the service life of the equipment.
Smart Images

Figure CN224499624U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid level transmitter technology, and in particular to an anti-clogging liquid level transmitter. Background Technology
[0002] A level transmitter is an instrument used to continuously measure the height of liquids, particles, or slurries and converts the measured value into a standard electrical signal output for use by control systems or display devices. During the use of level transmitters, they are easily adhered to by viscous substances. In order to avoid clogging of the measuring element by viscous, easily crystallizing, or particulate media, and to ensure long-term stable and accurate measurement under harsh working conditions, reduce maintenance downtime, and extend equipment life, an anti-clogging level transmitter is required.
[0003] A clog-resistant level transmitter, through its structural design, effectively prevents clogging of the sensing components by silt, suspended solids, or viscous substances in the medium, ensuring the continuity, accuracy, and long-term reliability of level measurement, while reducing maintenance costs and downtime risks. Anti-clogging measures for level transmitters typically use filter plates to filter impurities; however, in existing technologies, filter plates are usually fixed, making disassembly and replacement cumbersome and inflexible. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides an anti-clogging level transmitter, which aims to improve the problem that filter plates are usually fixed, making disassembly and replacement cumbersome and inflexible.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-clogging level transmitter, comprising a delivery pipe, a level transmitter body fixedly connected to the outer wall of the delivery pipe, a fixing ring fixedly connected to the inner wall of the delivery pipe, a filter plate slidably connected to the inner wall of the fixing ring, a support block fixedly connected to the inside of the filter plate, a connecting frame slidably connected to one side of the support block, the other side of the connecting frame slidably connected to the inside of the fixing ring, a pull ring fixedly connected to the outer wall of the connecting frame, a rotating frame rotatably connected to one end of the connecting frame, a slider rotatably connected to the other end of the rotating frame, the slider slidably connected to the inside of the support block, a limit block fixedly connected to the outer wall of the slider, the limit block slidably connected to the inside of the support block, the limit block being engaged with the inside of the delivery pipe, a spring II fixedly connected to one end of the connecting frame, the other end of the spring II fixedly connected to the inside of the support block, and a storage component provided on the outer wall of the fixing ring.
[0006] Preferably, the storage assembly includes a connecting pipe, the outer wall of the fixing ring is attached to the inner wall of the connecting pipe, the outer wall of the connecting pipe is fixedly connected to the outer wall of the conveying pipe, and a material bucket is fixedly connected to the outer wall of the connecting pipe.
[0007] Preferably, the outer wall of the conveying pipe is provided with a sealing ring, and the outer wall of the sealing ring is attached to the inner wall of the connecting pipe.
[0008] Preferably, the connecting pipe has a settling chamber inside, a plug is threaded to the bottom of the settling chamber, a fixing block is fixedly connected to the lower surface of the plug, a motor is fixedly connected inside the fixing block, and a rotating shaft is fixedly installed at the output end of the motor.
[0009] Preferably, the outer wall of the rotating shaft is rotatably connected to the inside of the fixed block and the plug, and a support disk is fixedly connected to the outer wall of the rotating shaft. The lower surface of the support disk is slidably connected to the upper surface of the plug.
[0010] Preferably, a rotating column is rotatably connected inside the support disk, and a fixing plate is fixedly connected to the outer wall of the rotating column.
[0011] Preferably, a fixing column is fixedly connected inside the fixing plate, and a scraper is fixedly connected to the outer wall of the fixing column.
[0012] Preferably, the top end of a spring is fixedly connected to the lower surface of the fixing plate, and the bottom end of the spring is fixedly connected to the upper surface of the support plate.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, the filter plate can filter impurities in the liquid. Through the cooperation between the pull ring, connecting frame, limiting block and spring, the limiting block can move inside the conveying pipe to achieve the effect of engaging or disengaging from the conveying pipe, thereby achieving quick installation and disassembly of the filter plate, better replacement and cleaning of the filter plate, ensuring the high filtration efficiency of the filter plate and improving flexibility.
[0015] 2. In this utility model, the settling chamber allows larger impurity particles to settle, reducing the workload of subsequent filtration. The drive motor, through the cooperation of the rotating shaft, rotating column, fixed plate, spring, fixed column, and scraper, allows the scraper to clean the inner wall of the settling chamber, reducing the adhesion of impurities to the inner wall of the settling chamber and extending its service life. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of an anti-clogging level transmitter proposed in this utility model;
[0017] Figure 2 This is a partial structural diagram of the fixing ring of an anti-clogging level transmitter proposed in this utility model;
[0018] Figure 3This is a cross-sectional view of the internal structure of the filter plate of an anti-clogging level transmitter proposed in this utility model.
[0019] Figure 4 This is a cross-sectional view of the internal structure of the support block of an anti-clogging level transmitter proposed in this utility model;
[0020] Figure 5 This is a partial structural diagram of the scraper of an anti-clogging level transmitter proposed in this utility model.
[0021] Legend:
[0022] 1. Material bucket; 2. Connecting pipe; 3. Conveying pipe; 4. Fixing ring; 5. Sealing ring; 6. Filter plate; 7. Support block; 8. Connecting frame; 9. Pull ring; 10. Rotating frame; 11. Sliding block; 12. Limiting block; 13. Liquid level gauge body; 14. Settling chamber; 15. Plug; 16. Fixing block; 17. Motor; 18. Rotating shaft; 19. Rotating column; 20. Fixing plate; 21. Spring 1; 22. Fixing column; 23. Scraper; 24. Support plate; 25. Spring 2. Detailed Implementation
[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model provides: an anti-clogging level transmitter, including a delivery pipe 3, a level transmitter body 13 fixedly connected to the outer wall of the delivery pipe 3, a fixing ring 4 fixedly connected to the inner wall of the delivery pipe 3, a filter plate 6 slidably connected to the inner wall of the fixing ring 4, a support block 7 fixedly connected to the inside of the filter plate 6, a connecting frame 8 slidably connected to one side of the support block 7, the other side of the connecting frame 8 slidably connected to the inside of the fixing ring 4, a pull ring 9 fixedly connected to the outer wall of the connecting frame 8, a rotating frame 10 rotatably connected to one end of the connecting frame 8, a slider 11 rotatably connected to the other end of the rotating frame 10, a slider 11 slidably connected to the outer wall of the slider 11 inside the support block 7, a limit block 12 fixedly connected to the outer wall of the slider 11, a limit block 12 slidably connected to the outer wall of the limit block 12 inside the support block 7, the limit block 12 being snapped into the inside of the delivery pipe 3, a spring 25 fixedly connected to one end of the connecting frame 8, the other end of the spring 25 fixedly connected to the inside of the support block 7, and a storage component provided on the outer wall of the fixing ring 4;
[0025] Specifically, the level transmitter body 13 is a differential pressure level transmitter. The delivery pipe 3 fixes the level transmitter body 13, ensuring its stability and preventing numerical calculation errors. The delivery pipe 3 also fixes the fixing ring 4, and the filter plate 6 fixes the support block 7. The filter plate 6 can fix the support block 7. The connecting frame 8 is generally C-shaped, so one side of the connecting frame 8 is slidably connected to the inside of the delivery pipe 3, and the other side is slidably connected to the inside of the support block 7. The pull ring 9 is fixed to the outer wall of the connecting frame 8, and the connecting frame 8 can fix and support the pull ring 9. At the same time, the pull ring 9 can be used to pull the connecting frame 8 to move it. The lower surface of the other end of the connecting frame 8 has a protrusion, and the other side of the connecting frame 8 is connected to the second spring 25 through this protrusion. When the pull ring 9 is pulled to move the connecting frame 8, the other side of the connecting frame 8 will pull the second spring 25. The connecting frame 8 and the slider 11 support the rotating frame 10. The support block 7 supports and limits the slider 11 and the limiting block 12, so that the slider 11 and the limiting block 12 can only move left and right inside the support block 7. When the connecting frame 8 moves, it will drive the rotating frame 10 to move and rotate. Since the slider 11 can only move left and right, when the rotating frame 10 moves, it will drive the slider 11 to move left and right inside the support block 7. The slider 11 has a fixing function on the limiting block 12. When the slider 11 moves, it will drive the limiting block 12 to move left and right. The left and right movement of the limiting block 12 can achieve the function of engaging inside the conveying pipe 3 to limit the offset and disengaging from inside the conveying pipe 3 to achieve the effect of contact offset limitation. The movement of the limiting block 12 can achieve the effect of quick installation and disassembly of the filter plate 6, which is convenient for the replacement and cleaning of the filter plate 6.
[0026] Reference Figure 1 and Figure 2 The storage component includes a connecting pipe 2, the outer wall of a fixing ring 4 is attached to the inner wall of the connecting pipe 2, the outer wall of the connecting pipe 2 is fixedly connected to the outer wall of the conveying pipe 3, and a material bucket 1 is fixedly connected to the outer wall of the connecting pipe 2; a sealing ring 5 is provided on the outer wall of the conveying pipe 3, and the outer wall of the sealing ring 5 is attached to the inner wall of the connecting pipe 2.
[0027] Specifically, the material tank 1 is used to store liquid. The material tank 1 has a fixing function for the connecting pipe 2. The liquid inside the material tank 1 can flow into the conveying pipe 3 through the connecting pipe 2, thereby performing liquid level calculation. The connecting pipe 2 and the conveying pipe 3 are fixed by a flange to ensure the stability of the connection. At the same time, the filter plate 6 between the connecting pipe 2 and the conveying pipe 3 can further ensure the sealing between the connecting pipe 2 and the conveying pipe 3.
[0028] Reference Figure 1 and Figure 5The connecting pipe 2 has a settling chamber 14 inside. A plug 15 is threaded to the bottom of the settling chamber 14. A fixing block 16 is fixedly connected to the lower surface of the plug 15. A motor 17 is fixedly connected inside the fixing block 16. A rotating shaft 18 is fixedly installed at the output end of the motor 17. The outer wall of the rotating shaft 18 is rotatably connected to the inside of the fixing block 16 and the plug 15. A support plate 24 is fixedly connected to the outer wall of the rotating shaft 18. The lower surface of the support plate 24 is slidably connected to the upper surface of the plug 15. A rotating column 19 is rotatably connected inside the support plate 24. A fixing plate 20 is fixedly connected to the outer wall of the rotating column 19. A fixing column 22 is fixedly connected inside the fixing plate 20. A scraper 23 is fixedly connected to the outer wall of the fixing column 22.
[0029] Specifically, the connecting pipe 2 fixes the settling chamber 14, ensuring its stability. By utilizing gravity, the settling chamber 14 allows larger impurities to settle inside, reducing the workload of the subsequent filter plate 6. The settling chamber 14 supports the plug 15, and the settling chamber 14 and the plug 15 support are connected by threads. The plug 15 fixes the fixing block 16, and the outer wall of the fixing block 16 has a protrusion that allows the fixing block 16 to be rotated, thus enabling the plug 15 to be disassembled. The fixing block 16 also fixes the motor 17, which drives the rotating shaft 18 to rotate. The rotating shaft 18 fixes the support plate 24. The rotation of the support plate 24 causes the support plate 24 to rotate synchronously. The plug 15 supports the support plate 24, and a rotating sealing rubber ring is installed between the plug 15 and the support plate 24 to effectively reduce leakage. The support plate 24 supports the rotating column 19, which can rotate inside the support plate 24. The rotating column 19 supports the fixing plate 20, which in turn supports the fixing column 22. The fixing column 22 fixes the scraper 23. The rotation of the support plate 24 causes the fixing plate 20 to rotate via the rotating column 19, which in turn causes the fixing column 22 to drive the scraper 23 to rotate on the inner wall of the settling chamber 14, thus cleaning the inner wall of the settling chamber 14 and reducing the adhesion of high-viscosity impurities to the inner wall of the settling chamber 14, which can lead to scaling. This effectively improves the service life of the chamber.
[0030] Reference Figure 5 The top end of spring 21 is fixedly connected to the lower surface of the fixed plate 20, and the bottom end of spring 21 is fixedly connected to the upper surface of the support plate 24.
[0031] Specifically, the support plate 24 supports and fixes the spring 21. When the scraper 23 needs to be removed, pulling the handle below the fixing block 16 outwards can move the scraper 23 outwards. During the movement, since the settling chamber 14 has a conical design that is larger at the top and smaller at the bottom, the bottom of the settling chamber 14 squeezes the fixing column 22. The compression of the fixing column 22 will cause the fixing plate 20 to rotate inwards through the rotating column 19. The spring 21 is set between the fixing plate 20 and the support plate 24. When the fixing plate 20 rotates, it will squeeze the spring 21. After the compression contact, the spring 21 will generate a rebound force, which will reset the fixing plate 20. Through the action of the spring 21, the fixing plate 20 will rotate, thereby making the fixing column 22 achieve the effect of expanding outwards and contracting inwards. By contracting inwards, the scraper 23 can be removed at the same time as the plug 15 is removed. By expanding, the scraper 23 can be inserted into the settling chamber 14 and fit against the inner wall of the settling chamber 14.
[0032] Working principle: When needed, first pull the pull ring 9 to move the left side of the connecting frame 8 and drive the rotating frame 10 to move. When the pull ring 9 is pulled, the pull ring 9 will drive the spring 25 to stretch. The movement of the rotating frame 10 will cause the slider 11 to slide inside the support block 7. The sliding of the slider 11 will drive the limiting block 12 to move into the support block 7. Then, place the filter plate 6 on the inner wall of the fixing ring 4. At the same time, slide the other side of the connecting frame 8 into the inside of the fixing ring 4. Then release the pull ring 9. At this time, the spring 25 will use the contraction force to make the pull ring 9 return to its original position, thereby causing the limiting block 12 to move outward inside the support block 7 and lock into the inside of the conveying pipe 3, achieving quick installation of the filter plate 6. Then, the fixing ring 4 is placed on the inner wall of the connecting pipe 2. Then, the flange is fixed between the connecting pipe 2 and the conveying pipe 3, so that the liquid enters the liquid level sensor body 13 from the inside of the material tank 1 through the connecting pipe 2 and then through the conveying pipe 3 to detect the liquid level.
[0033] As the liquid flows through the connecting pipe 2, larger particles of impurities will settle inside the settling chamber 14 due to gravity. The settling chamber 14 reduces the filtration pressure on the subsequent filter plate 6. When the particles accumulate to a certain height, the impurities need to be discharged. At this time, the motor 17 is started, causing the rotating shaft 18 to rotate. The rotation of the rotating shaft 18 causes the support plate 24 to rotate, which in turn causes the rotating column 19 to rotate the fixed plate 20. The rotation of the fixed plate 20 then causes the fixed column 22 to rotate. During the rotation of the fixed column 22, the scraper 23 rotates, scraping away impurities from the inner wall of the settling chamber 14. This prevents high-viscosity impurities from adhering to the inner wall of the settling chamber 14 and forming scale. After scraping is completed... Rotate the fixed block 16 to remove the scraper 23 for sewage discharge. During the removal of the scraper 23, due to the conical design of the settling chamber 14 (larger at the top and smaller at the bottom), the scraper 23 will be squeezed at the bottom of the settling chamber 14. The scraper 23 will rotate inward under the pressure, causing the fixed plate 20 to squeeze the spring 21, thus achieving the effect of removal. This device can not only filter liquid impurities through the filter plate 6 to prevent clogging, but also quickly install the filter plate 6 for easy replacement and cleaning, improving flexibility. At the same time, the design of the settling chamber 14 can effectively reduce the amount of impurities entering the interior of the conveying pipe 3, reducing the occurrence of clogging. By scraping and cleaning the inner wall of the settling chamber 14, the adhesion and scaling of impurities can be avoided, extending the service life.
[0034] 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. A clog-resistant level transmitter, comprising a delivery pipe (3), characterized in that: The outer wall of the delivery pipe (3) is fixedly connected to a level gauge body (13), the inner wall of the delivery pipe (3) is fixedly connected to a fixing ring (4), the inner wall of the fixing ring (4) is slidably connected to a filter plate (6), the inside of the filter plate (6) is fixedly connected to a support block (7), the inside of the support block (7) is slidably connected to one side of a connecting frame (8), the other side of the connecting frame (8) is slidably connected to the inside of the fixing ring (4), the outer wall of the connecting frame (8) is fixedly connected to a pull ring (9), and the inside of the connecting frame (8) is rotatably connected to one end of a rotating frame (10). The other end of the rotating frame (10) is rotatably connected to a slider (11). The outer wall of the slider (11) is slidably connected to the inside of the support block (7). The outer wall of the slider (11) is fixedly connected to a limit block (12). The outer wall of the limit block (12) is slidably connected to the inside of the support block (7). The outer wall of the limit block (12) is snapped into the inside of the conveying pipe (3). The outer wall of the connecting frame (8) is fixedly connected to one end of a second spring (25). The other end of the second spring (25) is fixedly connected to the inside of the support block (7). The outer wall of the fixing ring (4) is provided with a storage component.
2. The anti-clogging level transmitter according to claim 1, characterized in that: The storage assembly includes a connecting pipe (2), the outer wall of the fixing ring (4) is attached to the inner wall of the connecting pipe (2), the outer wall of the connecting pipe (2) is fixedly connected to the outer wall of the conveying pipe (3), and a material bucket (1) is fixedly connected to the outer wall of the connecting pipe (2).
3. The anti-clogging level transmitter according to claim 2, characterized in that: The outer wall of the conveying pipe (3) is provided with a sealing ring (5), and the outer wall of the sealing ring (5) is attached to the inner wall of the connecting pipe (2).
4. The anti-clogging level transmitter according to claim 3, characterized in that: The connecting pipe (2) is provided with a settling chamber (14) inside. A plug (15) is threaded to the bottom of the settling chamber (14). A fixing block (16) is fixedly connected to the lower surface of the plug (15). A motor (17) is fixedly connected inside the fixing block (16). A rotating shaft (18) is fixedly provided at the output end of the motor (17).
5. The anti-clogging level transmitter according to claim 4, characterized in that: The outer wall of the rotating shaft (18) is rotatably connected to the inside of the fixed block (16) and the plug (15). The outer wall of the rotating shaft (18) is fixedly connected to the support plate (24), and the lower surface of the support plate (24) is slidably connected to the upper surface of the plug (15).
6. The anti-clogging level transmitter according to claim 5, characterized in that: The support plate (24) is rotatably connected to a rotating column (19), and a fixing plate (20) is fixedly connected to the outer wall of the rotating column (19).
7. The anti-clogging level transmitter according to claim 6, characterized in that: The fixing plate (20) is internally fixedly connected to a fixing column (22), and the outer wall of the fixing column (22) is fixedly connected to a scraper (23).
8. The anti-clogging level transmitter according to claim 7, characterized in that: The top end of spring 1 (21) is fixedly connected to the lower surface of the fixed plate (20), and the bottom end of spring 1 (21) is fixedly connected to the upper surface of the support plate (24).