Magnetic floater liquid level meter with anti-blocking function
By introducing a filtration and cleaning mechanism into the magnetic float level gauge, the problem of impurity clogging is solved, and impurities are filtered and removed, ensuring the accuracy and continuity of measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-31
AI Technical Summary
Magnetic float level gauges are prone to clogging by impurities during measurement, which affects the accuracy of the measurement.
A magnetic float level gauge with a filtration and cleaning mechanism was designed, including a filter screen and a scraper. The filter cylinder moves back and forth by rotating a drive screw. The filter screen filters impurities, and the scraper removes impurities from the surface of the filter screen to prevent clogging.
It effectively prevents impurities from entering the magnetic float guide tube, ensuring the accuracy and continuity of measurement. The scraper of the cleaning mechanism removes impurities from the filter screen, avoiding blockage and keeping the filtration process smooth.
Smart Images

Figure CN224066195U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid level gauge technology, specifically a magnetic float liquid level gauge with anti-clogging function. Background Technology
[0002] A magnetic float level gauge is a high-precision instrument for measuring liquid levels. It offers advantages such as intuitive display, no power requirement, easy installation, and minimal maintenance. It operates on the principle of magnetic coupling; a permanent magnet inside the float moves up and down with changes in liquid level, causing an external magnetic indicator to flip due to the magnetic force, thus displaying the corresponding liquid level. Magnetic float level gauges are suitable for various industrial fields, such as chemical, petroleum, and pharmaceutical industries, and can measure a variety of liquids, including corrosive and high-temperature media.
[0003] During solution measurement, impurities are inevitably encountered. These impurities may enter the interior of the magnetic float conduit through the connecting port. Over time, if a large amount of impurities accumulate on the inner wall of the magnetic float conduit, these impurities will interfere with the normal operation of the magnetic float. Specifically, when the liquid level changes, the magnetic float should move up and down accordingly to reflect the change in liquid level, but excessive impurities on the inner wall will hinder this process, thus affecting the accuracy of the measurement. To address this, a magnetic float level gauge with anti-clogging function is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a magnetic float level gauge with anti-clogging function to solve the problem of blockage in the magnetic float conduit in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a magnetic float level gauge with anti-clogging function, comprising a magnetic float guide tube, a flap box fixedly installed on the magnetic float guide tube, connecting ports fixedly installed at the upper and lower edges of the magnetic float guide tube, connecting flanges fixedly installed on the connecting ports, a filter mechanism installed at the connecting ports of the magnetic float guide tube, the filter mechanism comprising a screw seat fixedly installed on the magnetic float guide tube, a drive screw threaded on the screw seat, a filter cylinder fixedly installed at the end of the drive screw, a filter screen fixedly installed on the filter cylinder, and a cleaning mechanism fixedly installed on the outside of the filter cylinder.
[0006] Preferably, a handwheel is fixedly installed at the end of the drive screw, sealing filler is filled at both ends of the screw seat, sealing plugs are threadedly installed at both ends of the screw seat, and a sealing ring is provided at the connection between the connecting port and the filter cylinder.
[0007] Preferably, the screw seat has a threaded hole, and the drive screw is installed in the screw seat through the threaded hole.
[0008] Preferably, the sealing packing is restricted at both ends of the screw seat by a sealing plug, the filter cylinder is movably installed in the communication port by a drive screw, the filter cylinder has an installation port, and the filter screen is installed on the filter cylinder through the installation port.
[0009] Preferably, the cleaning mechanism includes a positioning ring seat fixedly installed on the outside of the filter cylinder. The outer wall of the positioning ring seat is provided with an installation thread, and a positioning sleeve is fixedly installed on the inner wall of the positioning ring seat. A spring is provided inside the positioning sleeve, and a movable seat is movably installed on the positioning sleeve. A telescopic rod is fixedly installed on the movable seat, and a scraper is fixedly installed at the end of the telescopic rod.
[0010] Preferably, the positioning sleeve has a through hole at its end, and the telescopic rod extends out of the positioning sleeve through the through hole.
[0011] Preferably, one end of the spring is connected to the bottom of the positioning sleeve, and the other end of the spring is connected to the movable seat. The telescopic rod is movably installed inside the positioning sleeve through the movable seat, and the scraper is movably installed on both sides of the filter cylinder through the telescopic rod.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. In this application, under the action of a rotating drive screw, the screw moves forward, thereby pushing the filter cylinder forward and allowing it to enter the container. At this time, the solution in the container flows through the filter screen into the magnetic float conduit. The magnetic float moves up and down with the liquid level, realizing the function of liquid level measurement. The function of the filter screen is to filter the solution and prevent impurities from entering the magnetic float conduit. Furthermore, the user can rotate the filter cylinder to move it backward; at this time, a scraper will remove impurities from the surface of the filter screen to avoid clogging.
[0014] 2. In this application, the spring applies a pushing force to the movable seat, causing the movable seat to move forward. As the movable seat moves forward, it drives the telescopic rod forward, which in turn pushes the scraper forward, ensuring that the end of the scraper is in close contact with the filter screen surface, thereby enhancing the cleaning effect. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a partial structural schematic diagram of the present invention;
[0017] Figure 3 This is a schematic diagram of the filtration mechanism of this utility model;
[0018] Figure 4 This is a schematic diagram of the cleaning mechanism of this utility model.
[0019] The following are the labeling elements in the diagram: 1. Magnetic float guide tube; 2. Flip-plate box; 3. Connecting port; 4. Docking flange; 5. Filtering mechanism; 501. Handwheel; 502. Screw seat; 503. Sealing packing; 504. Sealing plug; 505. Drive screw; 506. Sealing ring; 507. Filter cartridge; 508. Filter screen; 6. Cleaning mechanism; 601. Positioning ring seat; 602. Mounting thread; 603. Positioning sleeve; 604. Scraper; 605. Telescopic rod; 606. Movable seat; 607. Spring. Detailed Implementation
[0020] 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.
[0021] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a magnetic float level gauge with anti-clogging function, including a magnetic float guide tube 1, a flap box 2 fixedly installed on the magnetic float guide tube 1, connecting ports 3 fixedly installed at the upper and lower edges of the magnetic float guide tube 1, connecting flanges 4 fixedly installed on the connecting ports 3, a filter mechanism 5 installed at the connecting ports 3 on the magnetic float guide tube 1, and a cleaning mechanism 6 fixedly installed on the outside of the filter cylinder 507. The filter screen 508 can prevent impurities from entering the magnetic float guide tube 1, and the filter mechanism 5 and the cleaning mechanism 6 work together to clean impurities on the surface of the filter screen 508 and prevent the filter screen 508 from clogging.
[0022] like Figure 2 and Figure 3 As shown, the filter mechanism 5 includes a screw seat 502 fixedly installed on the magnetic float guide tube 1. A drive screw 505 is threadedly installed inside the screw seat 502. A filter cylinder 507 is fixedly installed at the end of the drive screw 505. A filter screen 508 is fixedly installed on the filter cylinder 507. A handwheel 501 is fixedly installed at the end of the drive screw 505. Sealing filler 503 is filled at both ends of the screw seat 502. Sealing plugs 504 are threadedly installed at both ends of the screw seat 502. A sealing ring 506 is provided at the connection between the connecting port 3 and the filter cylinder 507. A threaded hole is provided inside the screw seat 502. The drive screw 505 is installed inside the screw seat 502 through the threaded hole.
[0023] Specifically, when the rotary drive screw 505 moves forward, it drives the filter cylinder 507 forward, allowing it to smoothly enter the container. Once the filter cylinder 507 is inside the container, the solution flows through the filter screen 508 into the magnetic float conduit 1. The magnetic float conduit 1 contains a magnetic float that moves up and down with changes in the liquid level, enabling precise measurement of the liquid level. The filter screen 508 filters out impurities from the solution, ensuring that only clean solution enters the magnetic float conduit 1, thus preventing contamination of the inside of the magnetic float conduit 1. Furthermore, the user can also activate the scraping function of the scraper 604 by rotating the filter cylinder 507 backward. When the filter cylinder 507 rotates backward, the scraper 604 scrapes the surface of the filter screen 508, effectively removing impurities and preventing clogging, ensuring smooth filtration.
[0024] like Figure 2 and Figure 4 As shown, the cleaning mechanism 6 includes a positioning ring seat 601 fixedly installed on the outside of the filter cylinder 507. The outer wall of the positioning ring seat 601 is provided with an installation thread 602. A positioning sleeve 603 is fixedly installed on the inner wall of the positioning ring seat 601. A spring 607 is provided inside the positioning sleeve 603. A movable seat 606 is movably installed on the positioning sleeve 603. A telescopic rod 605 is fixedly installed on the movable seat 606. A scraper 604 is fixedly installed at the end of the telescopic rod 605. A through hole is opened at the end of the positioning sleeve 603. The telescopic rod 605 extends out of the positioning sleeve 603 through the through hole.
[0025] Specifically, spring 607 applies a continuous pushing force to movable seat 606. This pushing force causes movable seat 606 to move forward, and during this forward movement, movable seat 606 drives telescopic rod 605 to move forward simultaneously. This forward movement of telescopic rod 605 further drives scraper 604 to move forward. When scraper 604 moves forward, its end comes into close contact with the surface of filter screen 508. Through this close contact, scraper 604 can effectively remove impurities and dirt from the surface of filter screen 508, thereby significantly improving the cleaning effect.
[0026] Working principle: In use, first connect the connecting port 3 to the detection port of the container through the docking flange 4, and then install the positioning ring seat 601 inside the detection port of the container through the installation thread 602. Then, the drive screw 505 can be rotated to move forward. After the drive screw 505 moves forward, it will drive the filter cylinder 507 to move forward, thereby moving the filter cylinder 507 into the container. After the filter cylinder 507 moves into the container, the solution in the container will enter the magnetic float conduit 1 through the filter screen 508. The magnetic float moves up and down with the liquid level, thereby measuring the liquid level. The filter screen 508 can filter the solution entering the magnetic float conduit 1, thereby preventing impurities from entering the magnetic float conduit 1. At the same time, the user can rotate the filter cylinder 507 to move backward. When the filter cylinder 507 moves backward, the scraper 604 can scrape off the impurities on the surface of the filter screen 508 to prevent the filter screen 508 from clogging. Spring 607 applies a pushing force to movable seat 606, causing movable seat 606 to move forward. When movable seat 606 moves forward, it drives telescopic rod 605 to move forward. After telescopic rod 605 moves forward, it drives scraper 604 to move forward, so that the end of scraper 604 tightly abuts against the surface of filter screen 508, thereby improving the cleaning effect.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A magnetic float level gauge with anti-clogging function, comprising a magnetic float guide tube (1), a flap box (2) fixedly installed on the magnetic float guide tube (1), and connecting ports (3) fixedly installed at the upper and lower edges of the magnetic float guide tube (1), and connecting flanges (4) fixedly installed on the connecting ports (3), characterized in that: The filter mechanism (5) is installed at the communicating port (3) of the magnetic floater conduit (1), the filter mechanism (5) comprises a screw rod base (502) fixedly installed on the magnetic floater conduit (1), a driving screw rod (505) screwedly installed in the screw rod base (502), a filter cylinder (507) fixedly installed at the end of the driving screw rod (505), a filter screen (508) fixedly installed on the filter cylinder (507), and a cleaning mechanism (6) fixedly installed outside the filter cylinder (507).
2. The magnetic floater liquid level meter with anti-blocking function according to claim 1, characterized in that: The end of the driving screw rod (505) is fixedly installed with a hand wheel (501), the both ends of the screw rod base (502) are filled with sealing filler (503), and the both ends of the screw rod base (502) are screwedly installed with sealing plugs (504); and the connecting part of the communicating port (3) and the filter cylinder (507) is provided with a sealing ring (506).
3. The magnetic floater liquid level meter with anti-blocking function according to claim 2, characterized in that: The screw rod base (502) is provided with a threaded hole, and the driving screw rod (505) is installed in the screw rod base (502) through the threaded hole.
4. The magnetic floater liquid level meter with anti-blocking function according to claim 3, characterized in that: The sealing filler (503) is limited at the both ends of the screw rod base (502) through the sealing plugs (504), the filter cylinder (507) is movably installed in the communicating port (3) through the driving screw rod (505), the filter cylinder (507) is provided with a mounting port, and the filter screen (508) is installed on the filter cylinder (507) through the mounting port.
5. The magnetic floater liquid level meter with anti-blocking function according to claim 4, characterized in that: The cleaning mechanism (6) comprises a positioning ring base (601) fixedly installed outside the filter cylinder (507), the outer wall of the positioning ring base (601) is provided with a mounting thread (602), the inner wall of the positioning ring base (601) is fixedly installed with a positioning sleeve (603), the positioning sleeve (603) is provided with a spring (607), the positioning sleeve (603) is movably installed with a movable seat (606), the movable seat (606) is fixedly installed with an extension rod (605), and the end of the extension rod (605) is fixedly installed with a scraper (604).
6. The magnetic floater liquid level meter with anti-blocking function according to claim 5, characterized in that: The end of the positioning sleeve (603) is provided with a through hole, and the extension rod (605) extends out of the positioning sleeve (603) through the through hole.
7. The magnetic floater liquid level meter with anti-blocking function according to claim 6, characterized in that: One end of the spring (607) is connected to the bottom of the positioning sleeve (603), the other end of the spring (607) is connected to the movable seat (606), the extension rod (605) is movably installed in the positioning sleeve (603) through the movable seat (606), and the scraper (604) is movably installed on both sides of the filter cylinder (507) through the extension rod (605).