Wireless magnetic levitation ball liquid level transmitter

Abstract

The utility model discloses a wireless magnetic suspension ball liquid level transmitter, including transmitter body, the one side fixed mounting of transmitter body has wireless transmission module, is used for the transmission of device's signal, the bottom of transmitter body is installed with connecting mechanism, is used for assembling device, the outside of connecting mechanism is sleeved with anti -interference mechanism, is used for offsetting magnetic field interference. The utility model discloses the setting of connecting mechanism makes the outer sleeve can stably install, and the threaded connection of mounting seat and outer sleeve can ensure the compactness of initial installation, avoid the equipment vibration to cause the displacement of outer sleeve, in addition, after installing in place, the plug -in rod is automatically inserted into the plug -in hole and forms secondary limit, can resist the vibration, impact and other external force in long -term operation, ensure that the outer sleeve is always in the best position, continuously play the primary magnetic shielding effect of metal material, reduce the interference of outside magnetic field to transmitter body, reduce data fluctuation risk.

Description

Technical Field

[0001] This utility model relates to the field of liquid level transmitter technology, specifically to a wireless magnetic levitation ball liquid level transmitter. Background Technology

[0002] The wireless magnetic levitation ball level transmitter is a level measurement device that combines the principles of magnetic coupling, buoyancy, and wireless communication. Its core function is to detect the liquid level in a container in real time and transmit the data wirelessly to a monitoring system, enabling remote level monitoring without wiring. Its working principle can be broken down into three key stages: level detection (magnetic levitation ball core), signal conversion, and wireless transmission.

[0003] In practical applications of wireless magnetic levitation ball level transmitters, the working environment often contains magnetic field interference of varying intensities, both internally and externally. Since the core detection principle of wireless magnetic levitation ball level transmitters relies on the magnetic coupling between the magnetic levitation ball and the internal magnetic sensing element to achieve the conversion and transmission of level signals, the presence of an additional magnetic field in the environment disrupts the transmitter's original stable magnetic coupling balance. This causes irregular fluctuations in the magnetic signal received by the element, leading to deviations in the level detection data output by the transmitter from the true value. Specifically, the detection data fluctuates frequently within a short period, failing to stabilize within the numerical range corresponding to the actual level. Ultimately, this makes it difficult to obtain accurate and reliable detection data during level testing, severely affecting the validity of the test results and potentially misleading subsequent production control or equipment maintenance work based on the test data.

[0004] Therefore, how to design a new wireless magnetic levitation ball level transmitter is a technical problem that engineers need to solve. Utility Model Content

[0005] The purpose of this invention is to provide a wireless magnetic levitation ball level transmitter to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A wireless magnetic levitation ball level transmitter includes: a transmitter body, a wireless transmission module fixedly installed on one side of the transmitter body for transmitting signals of the device, a connecting mechanism installed at the bottom of the transmitter body for assembling the device, and an anti-interference mechanism sleeved on the outside of the connecting mechanism to cancel magnetic field interference; the connecting mechanism includes a mounting base fixedly installed at the bottom of the transmitter body, an outer sleeve threaded to the bottom of the mounting base, a working structure installed inside the outer sleeve, and one end of the working structure being interconnected with the transmitter body.

[0007] Furthermore, the mounting sleeve has mounting protrusions at both ends, and the mounting protrusions at both ends of the mounting sleeve are slidably connected to the insertion rods. The insertion rods are sleeved with auxiliary springs, and the auxiliary springs are located inside the mounting sleeve. One end of each of the two insertion rods passes through the side wall of the mounting sleeve and is fixedly connected to one side of the pull ring. The bottom end of the mounting base is provided with insertion holes at equal intervals for insertion and engagement with the insertion rods.

[0008] Furthermore, a protruding ring that mates with an auxiliary spring is fixedly installed at the top of the plug rod.

[0009] Furthermore, the anti-interference mechanism includes a mounting sleeve installed outside the outer sleeve, a support frame fixedly installed inside the mounting sleeve, a plurality of mounting rings fixedly installed at equal intervals on the support frame, and coils wound on the plurality of mounting rings. A fixing seat is fixedly installed at the top of the mounting sleeve, and fastening sleeves are symmetrically fixedly installed on one side of the fixing seat. A magnetic interference detection unit is fixedly installed inside the fixing seat, and an MCU control unit is electrically connected to the magnetic interference detection unit.

[0010] Furthermore, the mounting sleeve is hollow, which is used to support the mounting sleeve and the support frame during installation.

[0011] Furthermore, the mounting sleeve has equidistant protrusions inside for supporting the mounting of the support frame.

[0012] Furthermore, the fixing seat has a groove on the side near the mounting sleeve that is fitted with the mounting sleeve, and both the fixing seat and the fastening sleeve have rubber pads on one side.

[0013] The technical solution provided by this utility model can include the following beneficial effects: 1. In this example, the connection mechanism allows for stable installation of the outer sleeve. The threaded connection between the mounting base and the outer sleeve ensures tightness during initial installation, preventing displacement of the outer sleeve due to equipment vibration. Furthermore, after installation, the plug rod automatically inserts into the plug hole to form a secondary limit, which can resist external forces such as vibration and impact during long-term operation, ensuring that the outer sleeve is always in the optimal position and continuously exerts the primary magnetic shielding effect of the metal material, reducing interference from external magnetic fields on the transmitter body and lowering the risk of data fluctuations.

[0014] 2. In this example, the magnetic interference detection unit in the anti-interference mechanism can monitor the strength and direction of the ambient magnetic field in real time. When the interference magnetic field exceeds the threshold, the MCU control unit can accurately output a reverse compensation current to drive the corresponding coil to generate a compensation magnetic field with "opposite direction and equal strength" to directly cancel the external interference. The active compensation mechanism can ensure the stability of the "effective magnetic signal" between the float magnet and the Hall element inside the working structure, avoid measurement errors and data jumps caused by magnetic signal deviation, and ensure the reliability of the core measurement and monitoring functions of the equipment.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a first-person perspective schematic diagram of the overall structure of this utility model; Figure 2 This is a second-view schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the connection mechanism structure of this utility model; Figure 4 This is a schematic diagram of the anti-interference mechanism structure of this utility model; Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Transmitter body; 2. Wireless transmission module; 3. Connection mechanism; 4. Anti-interference mechanism; 5. Mounting base; 6. Outer sleeve; 7. Working structure; 8. Mounting sleeve; 9. Plug rod; 10. Auxiliary spring; 11. Pull ring; 12. Plug hole; 13. Mounting sleeve; 14. Support frame; 15. Mounting ring; 16. Coil; 17. Fixing base; 18. Fastening sleeve; 19. Magnetic interference detection unit; 20. MCU control unit. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, 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 a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. The preferred embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. Although the preferred embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this utility model more thorough and complete, and to fully convey the scope of this utility model to those skilled in the art.

[0020] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0021] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] The technical solution of the present invention (Embodiment 1) is described in detail below with reference to the accompanying drawings.

[0023] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The wireless magnetic levitation ball level transmitter specifically includes: a transmitter body 1, a wireless transmission module 2 fixedly installed on one side of the transmitter body 1 for transmitting signals of the device, a connecting mechanism 3 installed at the bottom of the transmitter body 1 for assembling the device, and an anti-interference mechanism 4 sleeved on the outside of the connecting mechanism 3 for canceling magnetic field interference; the connecting mechanism 3 includes a mounting base 5 fixedly installed at the bottom of the transmitter body 1, an outer sleeve 6 threadedly connected to the bottom of the mounting base 5, a working structure 7 installed inside the outer sleeve 6, and one end of the working structure 7 being interconnected with the transmitter body 1.

[0024] Specifically, the connecting mechanism 3 further includes a mounting sleeve 8 fixedly installed on the outside of the top of the outer sleeve 6. The mounting sleeve 8 has mounting protrusions at both ends inside. Insertion rods 9 are slidably connected inside the mounting protrusions at both ends of the mounting sleeve 8. An auxiliary spring 10 is sleeved on the outside of the insertion rods 9 and is located inside the mounting sleeve 8. One end of each of the two insertion rods 9 passes through the side wall of the mounting sleeve 8 and is fixedly connected to one side of the pull ring 11. Insertion holes 12 are equidistantly opened at the bottom of the mounting base 5 to engage with the insertion rods 9.

[0025] Specifically, a protruding ring that mates with the auxiliary spring 10 is fixedly installed at the top of the plug rod 9.

[0026] Specifically, the anti-interference mechanism 4 includes an installation sleeve 13 installed outside the outer sleeve 6. A support frame 14 is fixedly installed inside the installation sleeve 13. A plurality of installation rings 15 are fixedly installed at equal intervals on the support frame 14. A coil 16 is wound around the plurality of installation rings 15. A fixing seat 17 is fixedly installed at the top of the installation sleeve 13. Fastening sleeves 18 are symmetrically fixedly installed on one side of the fixing seat 17. A magnetic interference detection unit 19 is fixedly installed inside the fixing seat 17. An MCU control unit 20 is electrically connected to the magnetic interference detection unit 19.

[0027] Specifically, the mounting sleeve 13 is hollow and is used to support and install the mounting sleeve 13 and the support frame 14.

[0028] Specifically, the mounting sleeve 13 has equidistant protrusions inside for supporting and mounting the support frame 14.

[0029] Specifically, the fixed seat 17 has a slot on the side near the mounting sleeve 13 for mounting and fitting with the mounting sleeve 13, and both the fixed seat 17 and the fastening sleeve 18 have rubber pads on one side.

[0030] In this embodiment, when the device is operating, it is subject to external magnetic field interference, which can cause data fluctuations in the transmitter body 1 during operation. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 5 The specific implementation method is as follows: During the normal operation of the device, magnetic field interference in the external environment can significantly affect the stability of the equipment operation, especially causing data fluctuations in the transmitter body 1. These fluctuations not only affect the accuracy of real-time monitoring, but may also indirectly lead to deviations in subsequent control links, posing potential risks to production operations or equipment operation safety. An outer sleeve 6 made of metal is specially fitted around the outside of the working structure 7. The excellent magnetic shielding properties of metal are used to achieve primary magnetic field shielding, effectively blocking most of the external magnetic field from penetrating the internal structure and significantly reducing the frequency of data fluctuations. In the installation of the outer sleeve 6, firstly, the end of the outer sleeve 6 is connected to the top of the transmitter body 1... The initial connection via threads ensures the outer sleeve 6 has basic stability during the initial installation stage, preventing displacement due to equipment vibration and ensuring effective shielding. After the outer sleeve 6 is installed in place, the insertion rod 9 inside the mounting sleeve 8 extends and inserts into the pre-set insertion hole 12 at the bottom of the mounting base 5, forming a secondary restraint structure. This effectively resists external forces such as vibration and impact during long-term equipment operation, ensuring the outer sleeve 6 remains in the optimal installation position and continuously provides stable magnetic field shielding. This prevents shielding failure due to loosening of the outer sleeve 6, which could lead to data fluctuations in the transmitter body 1. Furthermore, the design also considers convenience and operability in the disassembly and maintenance of the outer sleeve 6. When disassembling the outer sleeve 6 is necessary, the operator simply pulls down the insertion rod 9 using the pull ring 11 at the end. This compresses the auxiliary spring 10 sleeved on the insertion rod 9, allowing it to smoothly disengage from the insertion hole 12 and release the secondary restraint. Subsequently, the staff only needs to rotate the outer sleeve 6 in the opposite direction to remove it from the top of the transmitter body 1. The whole process does not require complicated tools, the operation steps are simple and efficient, which can greatly shorten the maintenance time, reduce the operation difficulty of the staff, and at the same time avoid damage to the equipment structure due to improper disassembly, ensuring the normal installation and operation of subsequent equipment.

[0031] In this embodiment, how to perform active magnetic field shielding is described in reference [reference needed]. Figure 4The specific implementation method is as follows: To further enhance the magnetic field protection effect of the device, a magnetic interference detection unit 19 is specially configured on the anti-interference mechanism 4. It can capture the intensity change and direction characteristics of the magnetic field in the environment in real time. When the intensity of the interference magnetic field exceeds the preset threshold, the system will immediately trigger the active compensation mechanism. The MCU control unit 20 calculates and outputs a reverse compensation current to the coil 16 at the corresponding position according to the direction of the interference magnetic field fed back by the magnetic interference detection unit 19. The reverse compensation current can drive the coil 16 to generate a compensation magnetic field that is "opposite in direction and equal in intensity" to the interference magnetic field. Through the mutual cancellation principle between magnetic fields, the influence of the external interference magnetic field on the inside of the device is directly weakened or even eliminated. It can ensure that the "effective magnetic signal" between the key components inside the working structure 7—the float magnet and the Hall element—remains stable. In order to achieve omnidirectional magnetic field protection, the anti-interference mechanism 4 also builds a ring structure of several coils 16 through the coordinated cooperation of the support frame 14 and the mounting ring 15, which further enhances the stability and anti-interference capability of the device operation.

[0032] It should be noted that the magnetic interference detection unit 19 is model TMR8112NLite. Through phase-sensitive detection of weak magnetic signal modulation technology, it converts the passband weak magnetic signal into a narrowband measurement, which can accurately capture the weak magnetic field changes at the nanotesla level, ensuring high-resolution signal output and reflecting the strength changes of the magnetic field quickly and accurately.

[0033] The MCU control unit 20 is model LPC1100, which supports a 32-bit instruction set, provides rich instruction operations, improves code execution efficiency, has an efficient interrupt handling mechanism, supports fast interrupt response and low interrupt latency, and can handle external events in a timely manner to ensure the real-time performance and stability of the system.

[0034] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the present invention embodiments can be adjusted, combined, and deleted according to actual needs, and the structure in the device of the present invention embodiments can be combined, divided, and deleted according to actual needs. The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A wireless magnetic levitation ball level transmitter, characterized in that, include: Transmitter body (1), a wireless transmission module (2) is fixedly installed on one side of the transmitter body (1) for transmitting signals of the device, a connecting mechanism (3) is installed at the bottom of the transmitter body (1) for assembling the device, and an anti-interference mechanism (4) is sleeved on the outside of the connecting mechanism (3) for canceling magnetic field interference. The connecting mechanism (3) includes a mounting base (5) fixedly installed at the bottom of the transmitter body (1). The bottom end of the mounting base (5) is threadedly connected to an outer sleeve (6). A working structure (7) is installed inside the outer sleeve (6), and one end of the working structure (7) is connected to the transmitter body (1).

2. The wireless magnetic levitation ball level transmitter according to claim 1, characterized in that: The connecting mechanism (3) also includes a mounting sleeve (8) fixedly installed on the outside of the top of the outer sleeve (6). The mounting sleeve (8) has mounting protrusions at both ends inside. The mounting protrusions at both ends of the mounting sleeve (8) are slidably connected to the insertion rods (9). An auxiliary spring (10) is sleeved on the outside of the insertion rods (9), and the auxiliary spring (10) is located inside the mounting sleeve (8). One end of each of the two insertion rods (9) passes through the side wall of the mounting sleeve (8) and is fixedly connected to one side of the pull ring (11). The bottom end of the mounting base (5) is provided with insertion holes (12) that are equidistant from each other to engage with the insertion rods (9).

3. The wireless magnetic levitation ball level transmitter according to claim 2, characterized in that: The top end of the plug rod (9) is fixedly fitted with a protruding ring that cooperates with the auxiliary spring (10).

4. The wireless magnetic levitation ball level transmitter according to claim 3, characterized in that: The anti-interference mechanism (4) includes an installation sleeve (13) installed outside the outer sleeve (6). A support frame (14) is fixedly installed inside the installation sleeve (13). Several installation rings (15) are fixedly installed at equal intervals on the support frame (14). A coil (16) is wound around the several installation rings (15). A fixing seat (17) is fixedly installed at the top of the installation sleeve (13). A fastening sleeve (18) is fixedly installed symmetrically on one side of the fixing seat (17). A magnetic interference detection unit (19) is fixedly installed inside the fixing seat (17). An MCU control unit (20) is electrically connected to the magnetic interference detection unit (19).

5. A wireless magnetic levitation ball level transmitter according to claim 4, characterized in that: The mounting sleeve (13) is hollow and is used to support and install the mounting sleeve (13) and the support frame (14).

6. A wireless magnetic levitation ball level transmitter according to claim 5, characterized in that: The mounting sleeve (13) has equidistant protrusions inside for supporting the mounting of the support frame (14).

7. A wireless magnetic levitation ball level transmitter according to claim 6, characterized in that: The fixed seat (17) has a slot on the side near the mounting sleeve (13) for mounting and fitting with the mounting sleeve (13), and both the fixed seat (17) and the fastening sleeve (18) have rubber pads on one side.

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