Liquid level gauge and detection structure

Abstract

This utility model relates to the technical field of liquid level measurement equipment, specifically disclosing a liquid level gauge and detection structure, including a housing assembly comprising multiple cylindrical sections, each section being detachably connected, each cylindrical section having an external threaded groove at its bottom, and a mounting bracket at the top of the uppermost cylindrical section; a detection structure comprising a sensor and a float assembly, the sensor being disposed inside the cylindrical section, and the float assembly being movably mounted outside the cylindrical section; and a display and control module comprising an LCD screen and control buttons, the LCD screen being mounted on the outer wall of the housing near the mounting bracket, facilitating adaptation to different specifications of detection equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid level measurement equipment, specifically a liquid level gauge and its detection structure. Background Technology

[0002] Accurate measurement of liquid levels is crucial in many industrial production processes and daily life. Traditional liquid level gauges have certain limitations in terms of installation, maintenance, and measurement accuracy.

[0003] For example, some level gauges have complex installation methods, making it difficult to adapt to the installation requirements of detection equipment at different depths; some level gauges, due to unreasonable structural design, experience a decrease in sealing performance during long-term use, affecting measurement accuracy; and some level gauges have low sensitivity in their detection structure, making it impossible to accurately reflect changes in liquid level.

[0004] The purpose of this invention is to provide a level gauge and detection structure to solve the problems mentioned in the background art. Utility Model Content

[0005] To achieve the above objectives, this utility model provides a level gauge, including a housing assembly comprising multiple cylindrical sections, each of which is detachably connected. Each cylindrical section has an external threaded groove at its bottom and a mounting bracket at the top of the topmost cylindrical section. The mounting bracket is used to install the level gauge on a detection device. The detachable design of the multiple cylindrical sections facilitates adjustment of the overall length of the level gauge to match the depth of the detection device or the detection requirements.

[0006] The detection structure includes a sensor and a float assembly. The sensor is disposed inside the cylinder, and the float assembly is movably mounted outside the cylinder. The float assembly can move up and down with changes in the liquid level, thereby driving the float assembly to work and realize the detection of the liquid level.

[0007] The display control module includes an LCD screen and control buttons. The LCD screen is installed on the outer wall of the housing near the mounting bracket and is used to visually display the liquid level measurement results. The control buttons can be used to set parameters and perform other operations on the liquid level gauge.

[0008] As a further improvement of this utility model, the mounting bracket includes opposing clamps, which are connected and fixed together by adjusting bolts. The opposing clamps are held on the top of the detection equipment. This design enables the opposing clamps to be held on the top of the detection equipment, thus achieving rapid installation of the level gauge.

[0009] As a further improvement of this utility model, the bottom inner wall of the detection device is provided with a threaded sleeve that connects to the external threaded groove of the cylinder. The threaded connection ensures that the level gauge is firmly connected to the detection device, facilitates the disassembly and replacement of the level gauge, and also facilitates the adjustment of the length of the level gauge.

[0010] As a further improvement of this utility model, each section of the cylinder is provided with an internal threaded annular groove at the top that matches the external threaded annular groove of the adjacent cylinder, and an O-ring is provided at the bottom of the internal threaded annular groove. This connection method not only facilitates the assembly between cylinders, but also the O-ring can effectively ensure the sealing of the connection, prevent liquid leakage, and improve the stability and measurement accuracy of the level gauge.

[0011] A level gauge detection structure includes a float assembly; the float assembly includes a hollow annular tube float and a guide rod, the guide rod being symmetrically arranged through the hollow annular tube float, the hollow annular tube float having a circular through groove at its center, a permanent magnet being provided inside the hollow annular tube float, and the guide rod being symmetrically arranged on the outer wall of the cylinder, serving to guide the hollow annular tube float to move up and down;

[0012] The sensing component includes multiple reed switches, which are evenly and vertically distributed inside the cylinder. When the hollow ring tube float rises or falls with the liquid level, the permanent magnet inside it cooperates with the reed switches. The reed switches can sense the change in the magnetic field of the permanent magnet, thereby converting the liquid level change into an electrical signal and realizing accurate measurement of the liquid level.

[0013] As a further improvement of this utility model, the hollow annular tube float is sleeved on the outer wall of the cylinder through the circular through groove, the guide rod is fixedly installed on the outer wall of the cylinder, and the inner annular wall of the hollow annular tube float is provided with a sliding groove that matches the guide rod. This design enables the hollow annular tube float to move stably up and down along the guide rod, ensuring the reliability of the detection structure.

[0014] As a further improvement of this utility model, the permanent magnet is symmetrically installed on the inner wall of the hollow ring tube float and is positioned close to the inner ring. The reed switch sensor is fixedly installed on the inner wall of the cylinder. The permanent magnet and the reed switch sensor cooperate with each other. When the liquid level changes, the hollow ring tube float drives the permanent magnet to move. The magnetic field of the permanent magnet acts on the reed switch sensor, causing it to generate a corresponding change in electrical signal, thereby realizing accurate measurement of the liquid level.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The liquid level gauge housing assembly of this utility model adopts a multi-section cylindrical detachable connection method, which facilitates installation, maintenance and transportation. When it is necessary to replace some parts or upgrade the liquid level gauge, it can be easily disassembled and assembled, reducing the use cost and maintenance difficulty. The design of the mounting bracket clamp and adjusting bolts enables quick installation. The multi-section cylindrical design also makes it easy to adapt to the needs of detection equipment at different depths by disassembling or assembling multiple sections of cylinder, which improves the adaptability of this device. The cylinders are connected by internal and external threaded annular grooves and are equipped with O-ring seals, which effectively ensures the sealing performance of the liquid level gauge, avoids the impact of liquid leakage on the measurement results, and improves the stability and measurement accuracy of the liquid level gauge.

[0017] 2. The float assembly and sensing assembly in the detection structure of this utility model work together to accurately sense minute changes in liquid level through the action of permanent magnet and reed switch sensor, thereby improving the sensitivity and accuracy of liquid level measurement. A guide rod is provided on the outer wall of the shell to facilitate the hollow ring float in the float assembly to slide up and down along the shell, which helps to improve the stability of the float movement, improve detection accuracy, and ensure the reliability of the detection structure. Attached Figure Description

[0018] Figure 1 This is a diagram showing the separation of the level gauge and the threaded sleeve of this utility model.

[0019] Figure 2 This is a schematic diagram showing the connection between the level gauge and the detection equipment of this utility model.

[0020] Figure 3 This is a breakdown diagram of the components of the level gauge of this utility model.

[0021] Figure 4 This is a schematic diagram of the internal structure of the hollow ring tube float of this utility model.

[0022] In the diagram: 1. Outer shell assembly; 11. Cylinder; 12. External threaded annular groove; 13. Internal threaded annular groove; 14. Mounting bracket; 141. Clamping plate; 142. Adjusting bolt; 2. Detection structure; 21. Float assembly; 211. Hollow annular tube float; 212. Guide rod; 213. Circular through groove; 214. Slide groove; 215. Permanent magnet; 22. Reed switch sensor; 3. Display control module; 31. LCD screen; 32. Control button; 4. Detection equipment; 41. Threaded sleeve. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Please see Figure 1-4 This utility model provides a level gauge, including a housing assembly 1; it includes multiple cylindrical sections 11, each of which is detachably connected. The bottom of each cylindrical section 11 is provided with an external threaded annular groove 12, and the top of the topmost cylindrical section 11 is provided with a mounting bracket 14. The mounting bracket 14 is used to install the level gauge on a detection device 4. The detachable design of the multiple cylindrical sections 11 facilitates the adjustment of the overall length of the level gauge according to the depth of the detection device 4 or the detection requirements.

[0027] The detection structure 2 includes a sensor and a float assembly 21. The sensor is disposed inside the cylinder 11, and the float assembly 21 is movably installed outside the cylinder 11. The float assembly 21 can move up and down with the change of liquid level, thereby driving the float assembly 21 to work and realize the detection of liquid level.

[0028] Display control module 3 includes an LCD screen 31 and control buttons 32. The LCD screen 31 is installed on the outer wall of the housing near the mounting bracket 14 and is used to display the liquid level measurement results intuitively. The control buttons 32 can be used to set parameters of the liquid level gauge and perform other operations.

[0029] The mounting bracket 14 includes opposing clamping plates 141, which are connected and fixed together by adjusting bolts 142. The opposing clamping plates 141 are clamped on the top of the detection device 4. This design enables the opposing clamping plates 141 to be clamped on the top of the detection device 4, thus achieving rapid installation of the level gauge.

[0030] The bottom inner wall of the detection device 4 is provided with a threaded sleeve 41 that is connected to the external threaded groove 12 of the cylinder 11. The threaded connection ensures that the level gauge is firmly connected to the detection device 4, and also facilitates the disassembly and replacement of the level gauge, as well as the adjustment of the length of the level gauge.

[0031] Each section of the cylinder 11 has an internal threaded groove 13 at its top that matches the external threaded groove 12 of the adjacent cylinder 11, and each internal threaded groove 13 has an O-ring at its bottom. This connection method not only facilitates the assembly of the cylinders 11, but also ensures the sealing of the connection by the O-ring, preventing liquid leakage and improving the stability and measurement accuracy of the level gauge.

[0032] Working principle:

[0033] In use, firstly, according to the height of the testing equipment 4, assemble each section of cylinder 11 sequentially through the engagement of the internal threaded annular groove 13 and the external threaded annular groove 12. After assembling each section of cylinder 11, ensure that O The sealing ring is installed correctly to ensure the sealing of the connection until it is assembled to the desired length. Further, when installing the last section of cylinder 11, it is threadedly connected to the threaded sleeve 41 on the inner wall of the bottom of the detection device 4 to ensure a firm connection. Then, the clamping plate 141 of the mounting bracket 14 is adjusted to a suitable spacing using adjusting bolts 142, so that it can be tightly clamped to the top of the detection device 4. In this embodiment, it is formed by multiple sections of cylinder 11, which not only allows for flexible adjustment according to the internal depth of the detection device 4, but also facilitates the disassembly, maintenance, or replacement of individual cylinder sections 11. This not only improves the adaptability of the level gauge but also increases the maintenance efficiency of the equipment. Existing level gauges are often limited in application due to complex installation procedures and specific adaptation requirements. However, the level gauge housing assembly 1 of this application adopts a multi-section cylinder 11 detachable connection process. During installation, each section of cylinder 11 can be flexibly assembled without complex tools or professional skills. Furthermore, the cylinders 11 of this level gauge are seamlessly connected through carefully developed internal threaded annular grooves 13 and external threaded annular grooves 12, and a high-performance O-ring is embedded. O-rings ensure a secure connection while effectively preventing liquid leakage. The special rubber material of the O-ring has excellent sealing and aging resistance properties, maintaining a good sealing effect even after long-term use. This ensures stable operation of the level gauge, reduces measurement errors and equipment failures caused by sealing problems, and extends service life.

[0034] Please see Figure 2-4A level gauge detection structure includes a float assembly 21; the float assembly 21 includes a hollow annular tube float 211 and a guide rod 212, the guide rod 212 being symmetrically arranged through the hollow annular tube float 211, the hollow annular tube float 211 having a circular through groove 213 at its center, the hollow annular tube float 211 having a permanent magnet 215 inside, and the guide rod 212 being symmetrically arranged on the outer wall of the cylinder 11, serving to guide the hollow annular tube float 211 to move up and down;

[0035] The sensing component includes multiple reed switch sensors 22, which are uniformly and vertically distributed inside the cylinder 11. When the hollow ring tube float 211 rises or falls with the liquid level, the permanent magnet 215 inside it cooperates with the reed switch sensors 22. The reed switch sensors 22 can sense the change in the magnetic field of the permanent magnet 215, thereby converting the liquid level change into an electrical signal and realizing accurate measurement of the liquid level.

[0036] The hollow annular tube float 211 is sleeved on the outer wall of the cylinder 11 through the circular through groove 213. The guide rod 212 is fixedly installed on the outer wall of the cylinder 11. The inner annular wall of the hollow annular tube float 211 is provided with a sliding groove 214 that matches the guide rod. This design enables the hollow annular tube float 211 to move stably up and down along the guide rod 212, ensuring the reliability of the detection structure 2.

[0037] The permanent magnets 215 are symmetrically mounted on the inner wall of the hollow annular tube float 211 and are positioned close to the inner ring. The reed switch sensor 22 is fixedly mounted on the inner wall of the cylinder 11. The permanent magnets 215 and the reed switch sensor 22 cooperate with each other. When the liquid level changes, the hollow annular tube float 211 drives the permanent magnets 215 to move. The magnetic field of the permanent magnets 215 acts on the reed switch sensor 22, causing it to generate a corresponding electrical signal change, thereby achieving accurate measurement of the liquid level.

[0038] Working principle:

[0039] When the liquid level changes, the hollow ring tube float 211 in the float assembly 21 moves up and down along the guide rod 212 on the outer wall of the cylinder 11 as the liquid level rises or falls. The permanent magnet 215 inside the hollow ring tube float 211 also moves accordingly. When the permanent magnet 215 moves to the position corresponding to the reed switch sensor 22 inside the cylinder 11, the reed switch sensor 22 is affected by the magnetic field of the permanent magnet 215, and its internal contacts will change from closing to opening, thereby generating an electrical signal. Multiple uniformly vertically distributed reed switch sensors 22 transmit signals of different liquid level positions to the display control module 3. After processing these signals, the display control module 3 displays the accurate liquid level value on the LCD screen 31. The user can also perform calibration operations on the liquid level gauge through the control button 32. Compared with the existing liquid level gauge detection structure 2, which has low sensitivity and is difficult to meet the requirements of high-precision measurement, the detection structure 2 of this application has a float assembly 21 The hollow ring tube float 211 is made of lightweight, high-strength material. The hollow internal space further reduces the weight of the hollow ring tube float 211. It contains a permanent magnet 215 with an optimized magnetic field distribution. The guide rod 212 symmetrically runs through the hollow ring tube float 211 and has a smooth and wear-resistant surface. With the precise matching of the sliding groove 214 on the inner ring wall of the hollow ring tube float 211, the hollow ring tube can move smoothly along the guide rod 212. Multiple carefully calibrated and evenly vertically distributed reed switch sensors 22 inside the cylinder 11 are manufactured using advanced technology and can accurately capture changes in the magnetic field of the permanent magnet 215. When the liquid level changes, the hollow ring tube float 211 drives the permanent magnet 215 to move. The magnetic field accurately acts on the reed switch sensor 22, triggering the precise action of the internal contacts and accurately converting the liquid level change into an electrical signal. Compared with the traditional detection structure 2, it can sensitively detect subtle changes in liquid level and greatly improve measurement accuracy. It has obvious advantages in industrial production processes with extremely high requirements for liquid level accuracy.

[0040] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A level gauge, characterized in that: The housing assembly (1) includes multiple cylindrical sections (11), each of which is detachably connected to the other. Each of the cylindrical sections (11) has an external threaded groove (12) at its bottom and a mounting bracket (14) at the top of the uppermost cylindrical section (11). The detection structure (2) includes a sensor and a float assembly (21), wherein the sensor is disposed inside the cylinder (11) and the float assembly (21) is movably mounted outside the cylinder (11); The display control module (3) includes a liquid crystal display screen (31) and control buttons (32), wherein the liquid crystal display screen (31) is mounted on the outer wall of the housing near the mounting bracket (14).

2. The level gauge according to claim 1, characterized in that: The mounting bracket (14) includes opposing clamps (141), which are connected and fixed together by adjusting bolts (142). The opposing clamps (141) are clamped on the top of the testing equipment (4).

3. A level gauge according to claim 2, characterized in that: The bottom inner wall of the testing device (4) is provided with a threaded sleeve (41) that is connected to the external threaded annular groove (12) of the cylinder (11).

4. A level gauge according to claim 1, characterized in that: Each section of the cylinder (11) has an internal threaded annular groove (13) at the top that matches the external threaded annular groove (12) of the adjacent cylinder (11), and each internal threaded annular groove (13) has an O-ring at the bottom.

5. A detection structure for a level gauge, for mounting on the cylinder (11) of the level gauge according to any one of claims 1 to 4, characterized in that: Includes a float assembly (21); the float assembly (21) includes a hollow annular tube float (211) and a guide rod (212), the guide rod (212) is symmetrically arranged through the hollow annular tube float (211), the hollow annular tube float (211) has a circular through groove (213) at the center, the hollow annular tube float (211) has a permanent magnet (215) inside, and the guide rod (212) is symmetrically arranged on the outer wall of the cylinder (11); The sensing component includes a plurality of reed switches (22), which are uniformly and vertically distributed inside the cylinder (11).

6. The detection structure of a level gauge according to claim 5, characterized in that: The hollow annular tube float (211) is sleeved on the outer wall of the cylinder (11) through the circular through groove (213), the guide rod (212) is fixedly installed on the outer wall of the cylinder (11), and the inner annular wall of the hollow annular tube float (211) is provided with a sliding groove (214) matching the guide rod.

7. The detection structure of a level gauge according to claim 6, characterized in that: The permanent magnet (215) is symmetrically installed on the inner wall of the hollow ring tube float (211) and is located close to the inner ring. The reed switch sensor (22) is fixedly installed on the inner wall of the cylinder (11). The permanent magnet (215) and the reed switch sensor (22) cooperate with each other.

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