Chemical instrument floating ball measuring device with liquid level self-adaption function

By combining reed switches and magnetic components, the problem of inaccurate measurement of liquid levels in chemical liquid level measuring devices in corrosive liquids with different densities has been solved, enabling accurate detection and signal transmission of liquid levels in chemical production.

CN224231051UActive Publication Date: 2026-05-12LINHUAN COKING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-25
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing chemical liquid level measuring devices have low measurement accuracy when dealing with corrosive chemical liquids and liquids with large density differences, and cannot meet the diverse liquid level measurement needs of chemical production.

Method used

The device employs a combination design of reed switches, disc floats, positioning sleeves, and magnetic components. The density of the disc floats is less than that of the chemical liquid, and the magnetic interaction enables precise conversion and transmission of liquid level signals, ensuring the sealing and stability of the device.

Benefits of technology

It enables precise measurement of chemical liquid levels and reliable signal transmission, improving the stability and measurement accuracy of the device and adapting to the diverse liquid level measurement needs of chemical production.

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Abstract

The utility model relates to the technical field of chemical production, in particular to a chemical instrument floating ball measuring device with a liquid level self-adaption function, which comprises a transmitter body, a transmitter positioning seat is fixedly mounted at the bottom of the transmitter body, a measuring component is arranged at the bottom of the transmitter positioning seat, and the measuring component comprises a reed switch. The reed switch is fixedly mounted at the bottom of the transmitter positioning seat, and the bottom of the reed switch is fixedly connected with a base; according to the utility model, the reed switch, the base, the disc-shaped floating ball, the positioning sleeve and other components are arranged, and the disc-shaped floating ball and the reed switch can freely slide along the axial direction, so that the disc-shaped floating ball can trigger a magnetic field induction area of the reed switch through the lifting of the disc-shaped floating ball along with the liquid level; the density of the disc-shaped floating ball is smaller than that of the measured chemical liquid, so that the disc-shaped floating ball can stably change along with the liquid level; and the positioning sleeve provides guidance for the disc-shaped floating ball, so that the effect that the device can detect the liquid level change in real time through the movement of the disc-shaped floating ball is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of chemical production technology, and in particular to a chemical instrument float measuring device with liquid level self-adaptive function. Background Technology

[0002] Early liquid level measurement methods, such as direct-reading liquid level gauges, could only achieve close-range, intuitive observation of liquid levels and could not transmit data remotely, thus limiting their application scenarios for monitoring the liquid levels of large chemical storage tanks or hazardous chemicals. Although capacitive liquid level gauges could measure liquid levels through changes in capacitance, they were easily affected by changes in medium characteristics, temperature fluctuations, and impurities in the container, resulting in low measurement accuracy. Ultrasonic liquid level gauges, when faced with chemical environments containing large amounts of steam and foam, would have their sound wave propagation affected, leading to larger measurement errors.

[0003] According to the search, Chinese Patent Publication No. CN113376214A discloses a float measuring device for an industrial wastewater pH meter. This device, based on the cooperation of the float and the outer sleeve, achieves automatic lifting and lowering without tipping over, so that the measuring range of the device is not affected by the liquid level of the water sample or the size of the pool, thereby further improving the stability and lifespan of the device.

[0004] However, while the aforementioned device, through the cooperation of the float and the outer sleeve, can achieve automatic lifting and tilt prevention, and to some extent reduce the dependence of the measurement range on the liquid level and pool size, thus improving the stability and lifespan of the device, it is primarily designed for industrial wastewater pH measurement. Its adaptability to measuring the liquid level of various corrosive chemical liquids with different densities in chemical production remains insufficient. Furthermore, the materials of the float and related components may not effectively resist the corrosion of chemical liquids, leading to device damage and affecting the continuity and accuracy of measurements. When faced with chemical liquids with significant density differences, the device may not accurately transmit signals based on liquid level changes, making it difficult to meet the diverse liquid level measurement needs of chemical production.

[0005] To address the aforementioned technical shortcomings, a solution is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a float measuring device for chemical instruments with liquid level self-adaptation function, in order to solve the aforementioned technical defects.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A chemical instrument float measuring device with liquid level adaptive function includes a transmitter body, a transmitter positioning seat fixedly installed at the bottom of the transmitter body, a measuring component at the bottom of the transmitter positioning seat, the measuring component including a reed switch, the reed switch fixedly installed at the bottom of the transmitter positioning seat, a base fixedly connected to the bottom of the reed switch, and a disc-shaped float movably sleeved on the outside of the reed switch.

[0009] Preferably, the top of the disc-shaped float is equipped with three axially distributed positioning sleeves, each of which is fixedly connected to the disc-shaped float, and the top of each positioning sleeve is fixedly connected with an upper sealing ring.

[0010] Preferably, a magnetic block fixing sleeve is fixedly connected to the bottom of the upper sealing ring, an axially distributed magnetic block body is fixedly installed on the outside of the magnetic block fixing sleeve, an axially distributed magnetic block fixing groove is opened inside the positioning sleeve, the magnetic block fixing groove corresponds to the position of the magnetic block body, and a lower sealing ring is fixedly installed at the bottom of the positioning sleeve.

[0011] Preferably, a sealing cover is fixedly installed on the top of the disc-shaped float, a sliding sleeve is fixedly connected to the bottom of the sealing cover, and an axially distributed magnetic positioning groove is opened through the interior of the disc-shaped float.

[0012] Preferably, a magnet body is fixedly installed inside each of the magnet positioning grooves, and the magnet body is located at the bottom of the sealing cover.

[0013] Preferably, the inner diameter of the sliding sleeve is adapted to the outer diameter of the positioning sleeve, and the sliding sleeve slides freely along the outer wall of the positioning sleeve, and the magnet body and the magnetic block body interact magnetically.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting up components such as a reed switch, a base, a disc float, and a positioning sleeve, utilizes the axially sliding cooperation between the disc float and the reed switch to allow the disc float to trigger the magnetic field sensing area of ​​the reed switch by its own movement with the rise and fall of the liquid level. The density of the disc float is less than that of the chemical liquid being measured, ensuring that it can stably change with the liquid level. The positioning sleeve provides guidance for the disc float, thereby achieving the effect of real-time detection of liquid level changes through the movement of the disc float.

[0016] 2. This utility model, by setting up components such as an upper sealing ring, a magnetic block fixing sleeve, a magnetic block body, a magnetic block fixing groove, and a lower sealing ring, integrates the upper sealing ring, the magnetic block fixing sleeve, and the lower sealing ring with the top of the disc-shaped float, ensuring sealing and stability. The magnetic block body is installed in the magnetic block fixing groove, and through the magnetic interaction with the magnet body, the reed switch can accurately convert the liquid level signal into an electrical signal. Thus, this device can accurately measure liquid level changes and accurately transmit signals through the coordinated cooperation of various components. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings;

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

[0019] Figure 2 This is a side view of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the disc-shaped float, the positioning sleeve, and the upper sealing ring in this utility model;

[0021] Figure 4 This is an exploded structural diagram of the upper sealing ring, magnetic block fixing sleeve, lower sealing ring and disc-shaped float in this utility model;

[0022] Figure 5 This is a cross-sectional structural diagram of the disc-shaped float in this utility model.

[0023] Legend: 1. Transmitter body; 2. Transmitter positioning seat; 3. Measuring component; 31. Reed switch; 32. Base; 33. Disc float; 34. Positioning sleeve; 35. Upper sealing ring; 36. Magnetic block fixing sleeve; 37. Magnetic block body; 38. Magnetic block fixing groove; 39. Lower sealing ring; 40. Sealing cover; 41. Sliding sleeve; 42. Magnet positioning groove; 43. Magnet body. Detailed Implementation

[0024] 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.

[0025] Example 1:

[0026] Please see Figure 1 - Figure 5As shown, this utility model is a chemical instrument float measuring device with liquid level adaptive function, including a transmitter body 1, a transmitter positioning seat 2 fixedly installed at the bottom of the transmitter body 1, and a measuring component 3 provided at the bottom of the transmitter positioning seat 2. The connection method between the transmitter positioning seat 2, the transmitter body 1, and the measuring component 3 ensures that the measuring component 3 can accurately transmit the liquid level signal to the transmitter body 1 when the liquid level changes.

[0027] Please see Figure 2 - Figure 5 As shown, the measuring assembly 3 includes a reed switch 31, a base 32, a disc float 33, a positioning sleeve 34, an upper sealing ring 35, a magnetic block fixing sleeve 36, a magnetic block body 37, a magnetic block fixing groove 38, and a lower sealing ring 39. The reed switch 31 is fixedly installed at the bottom of the transmitter positioning seat 2. The base 32 is fixedly connected to the bottom of the reed switch 31. The disc float 33 is movably sleeved on the outside of the reed switch 31. Three axially distributed positioning sleeves 34 are installed on the top of the disc float 33. The positioning sleeves 34 are all fixedly connected to the disc floats 33. The top of the positioning sleeve 34 is fixedly connected to the upper sealing ring 35. The bottom of the upper sealing ring 35 is fixedly connected to the magnetic block fixing sleeve 36. The outer side of the magnetic block fixing sleeve 36 is fixedly installed with axially distributed magnetic block bodies 37. The inside of the positioning sleeve 34 is provided with axially distributed magnetic block fixing grooves 38. The magnetic block fixing grooves 38 correspond to the positions of the magnetic block bodies 37. The bottom of the positioning sleeve 34 is fixedly installed with the lower sealing ring 39.

[0028] The measuring assembly 3 also includes a sealing cover 40, a sliding sleeve 41, a magnet positioning groove 42, and a magnet body 43. The sealing cover 40 is fixedly installed on the top of the disc float 33, and the sliding sleeve 41 is fixedly connected to the bottom of the sealing cover 40. The disc float 33 has an axially distributed magnet positioning groove 42 that runs through it. The magnet body 43 is fixedly installed inside the magnet positioning groove 42 and is located at the bottom of the sealing cover 40.

[0029] The disc float 33 is connected to the reed switch 31 in such a way that it can slide freely along the axis of the reed switch 31, and the disc float 33 is made of a corrosion-resistant material with a density lower than that of the chemical liquid being measured.

[0030] The positioning sleeve 34, the upper sealing ring 35, the magnetic block fixing sleeve 36, and the lower sealing ring 39 are an integrated structure, and the connection between this integrated structure and the top of the disc float 33 ensures sealing and stability.

[0031] The inner diameter of the sliding sleeve 41 is adapted to the outer diameter of the positioning sleeve 34, and the sliding sleeve 41 can slide freely along the outer wall of the positioning sleeve 34.

[0032] The magnetic interaction between the magnet body 43 and the magnetic block body 37, and the design of the magnet positioning groove 42 and the magnetic block fixing groove 38, ensure that the magnet body 43 and the magnetic block body 37 are accurately installed in the corresponding positions and remain stable.

[0033] The fixed connection between the reed switch 31 and the base 32 ensures the stability and reliability of the reed switch 31 during the measurement process, and the base 32 provides protection for the reed switch 31.

[0034] Further explanation is needed:

[0035] The density of the disc float 33 is less than that of the measured chemical liquid, allowing it to move up and down sensitively with the rise and fall of the liquid level. The reed switch 31 is fixed to the bottom of the transmitter positioning seat 2, and the disc float 33 can slide freely along the axial direction of the reed switch 31. When the disc float 33 changes position with the liquid level, the change in its position will trigger the magnetic field sensing area of ​​the reed switch 31. The positioning sleeve 34 provides a stable guide for the movement of the disc float 33, ensuring that the disc float 33 always slides smoothly along the axial direction, ensuring the accuracy and stability of the liquid level detection, thereby realizing real-time tracking and sensing of liquid level changes.

[0036] The upper sealing ring 35, the magnetic block fixing sleeve 36, and the lower sealing ring 39 form an integrated structure, which is tightly connected to the top of the disc float 33. This not only ensures the sealing of the device and effectively prevents chemical liquids from entering and affecting the measurement, but also enhances the stability of the overall structure. The magnetic block body 37 is installed in the magnetic block fixing groove 38 and interacts magnetically with the magnet body 43 at the bottom of the sealing cover 40. This interaction enables the reed switch 31 to accurately convert the liquid level signal caused by the change in position of the disc float 33 into an electrical signal, which is then transmitted to the transmitter body 1 for further processing, ultimately achieving accurate measurement of liquid level changes and reliable signal transmission.

[0037] The working process and principle of this utility model are as follows:

[0038] Because the density of the disc float 33 is less than that of the chemical liquid being measured, when the liquid level changes, the disc float 33 can respond quickly and move up and down stably with the rise and fall of the liquid level, thereby achieving a preliminary perception of the liquid level change.

[0039] The reed switch 31 is fixed at the bottom of the transmitter positioning seat 2. The disc float 33 and the reed switch 31 are in a state of being able to slide freely along the axial direction. As the disc float 33 moves due to the rise and fall of the liquid level, the change in its position will directly trigger the magnetic field sensing area of ​​the reed switch 31. This step completes the conversion from liquid level change to magnetic field sensing change.

[0040] The positioning sleeve 34 provides precise guidance for the movement of the disc float 33, ensuring that the disc float 33 always slides smoothly along the axis of the reed switch 31, avoiding shaking or deviation, ensuring the accuracy and stability of liquid level detection, and further consolidating the reliability of liquid level detection.

[0041] The upper sealing ring 35, the magnetic block fixing sleeve 36, and the lower sealing ring 39 form an integrated structure and are tightly connected to the top of the disc float 33. This structure ensures the sealing of the device and prevents chemical liquids from entering and interfering with the measurement. On the other hand, it enhances the stability of the overall structure. Meanwhile, the magnetic block body 37 is installed in the magnetic block fixing groove 38 and interacts magnetically with the magnet body 43 at the bottom of the sealing cover 40. This interaction enables the reed switch 31 to accurately convert the magnetic field change caused by the liquid level change into an electrical signal.

[0042] Finally, the converted electrical signal is transmitted to the transmitter body 1 through the transmitter positioning seat 2. The transmitter body 1 performs subsequent processing and analysis on these signals, ultimately achieving accurate measurement of liquid level changes and accurate signal transmission, providing reliable data support for liquid level monitoring in chemical production processes.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A chemical instrument float measuring device with adaptive liquid level function, comprising a transmitter body (1), characterized in that, A transmitter positioning seat (2) is fixedly installed at the bottom of the transmitter body (1). A measuring component (3) is provided at the bottom of the transmitter positioning seat (2). The measuring component (3) includes a reed switch (31). The reed switch (31) is fixedly installed at the bottom of the transmitter positioning seat (2). A base (32) is fixedly connected to the bottom of the reed switch (31). A disc-shaped float (33) is movably sleeved on the outside of the reed switch (31).

2. The chemical instrument float measuring device with liquid level adaptive function according to claim 1, characterized in that, The top of the disc-shaped float (33) is equipped with three axially distributed positioning sleeves (34), all of which are fixedly connected to the disc-shaped float (33), and the top of the positioning sleeves (34) is fixedly connected with an upper sealing ring (35).

3. A chemical instrument float measuring device with liquid level adaptive function according to claim 2, characterized in that, A magnetic block fixing sleeve (36) is fixedly connected to the bottom of the upper sealing ring (35). A magnetic block body (37) with an axial distribution is fixedly installed on the outside of the magnetic block fixing sleeve (36). A magnetic block fixing groove (38) with an axial distribution is opened inside the positioning sleeve (34). The magnetic block fixing groove (38) corresponds to the position of the magnetic block body (37). A lower sealing ring (39) is fixedly installed at the bottom of the positioning sleeve (34).

4. A chemical instrument float measuring device with liquid level adaptive function according to claim 1, characterized in that, The top of the disc-shaped float (33) is also fixedly installed with a sealing cover (40), and the bottom of the sealing cover (40) is fixedly connected with a sliding sleeve (41). The interior of the disc-shaped float (33) is provided with axially distributed magnetic positioning grooves (42).

5. A chemical instrument float measuring device with liquid level adaptive function according to claim 4, characterized in that, The magnet body (43) is fixedly installed inside the magnet positioning groove (42), and the magnet body (43) is located at the bottom of the sealing cover (40).

6. A chemical instrument float measuring device with liquid level adaptive function according to claim 5, characterized in that, The inner diameter of the sliding sleeve (41) is adapted to the outer diameter of the positioning sleeve (34), and the sliding sleeve (41) slides freely along the outer wall of the positioning sleeve (34). The magnet body (43) and the magnet block body (37) interact magnetically.