Liquid level meter with high sealing performance

By designing connecting branch pipes, limiting rings, and connecting caps, the problems of cumbersome installation and poor sealing of level gauges are solved, enabling fast, stable, and sealed installation of level gauges. This design is suitable for various container types and ensures accurate readings.

CN223976712UActive Publication Date: 2026-03-06NANJING HENGXIN SENSING INSTRUMENT CO LTD
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Patent Information

Application Number
CN202520544976.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-03-06
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

Existing level gauges are cumbersome to install, especially when installed on uneven containers where poor sealing affects their performance.

Method used

The design incorporates connecting branch pipes, limit rings, and connecting caps, enabling quick installation via external threaded connections. The limit rings ensure a tight fit with the container, enhancing sealing. Additionally, the use of a farad connecting plate and sealing rings ensures the stability and applicability of the connection.

Benefits of technology

It enables quick and stable installation of the level gauge and container, improves sealing performance and accuracy, is suitable for containers of different thicknesses, prevents particulate impurities from entering, and ensures accurate readings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a liquid level meter with high sealing performance, relates to the field of liquid level meters, and aims to solve the problems that screws are screwed into a container one by one through flanges at the two ends to be mounted in the conventional liquid level meter, the operation steps are tedious, time and labor are wasted, and when the container with an uneven outer wall is mounted, the sealing performance of the connecting part of the liquid level meter is reduced by adopting flange connection, so that the sealing performance is influenced. According to the technical scheme, the liquid level meter is characterized by comprising a liquid level meter body and a container body, mounting holes are formed in the container body, connecting branch pipes are arranged on one side of the upper end and one side of the lower end of the liquid level meter body, the number of the connecting branch pipes is two, and the connecting branch pipes correspond to the mounting holes; a first limiting ring is arranged outside the connecting branch pipe, an external thread is arranged on the outer wall of the connecting branch pipe, a connecting cap is arranged outside the connecting branch pipe, a second limiting ring is arranged on one side of the connecting cap, and the second limiting ring is arranged outside the connecting branch pipe.
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Description

Technical Field

[0001] This utility model relates to the technical field of liquid level gauges, specifically a liquid level gauge with strong sealing performance. Background Technology

[0002] A level gauge is an instrument used to measure the level of a liquid. The height of a liquid medium in a container is called the liquid level. Types of level gauges include tuning fork vibrating type, magnetic levitation type, pressure type, ultrasonic type, sonar type, magnetic float type, and radar type. Magnetic float level gauges are used for detecting the liquid level in various towers, tanks, troughs, spherical containers, and boilers. Magnetic float level gauges can be used to directly observe the liquid level height in various containers. They are suitable for level indication in industries such as petroleum and chemical processing. These level gauges have a simple structure, provide intuitive and clear observation, are non-clogging and leak-proof, easy to install, and simple to maintain.

[0003] A search revealed that prior art, publication number CN220120210U, discloses a magnetic float level gauge. This gauge includes a main body, connecting branch pipes, and vibration damping components. The main body comprises a measuring main pipe and a scale dial. A magnetic float movable along a first direction is located within the measuring main pipe. The scale dial is mounted on the outer surface of the measuring main pipe, and a mounting groove is located on the side of the scale dial away from the measuring main pipe. Multiple magnetic floats arranged sequentially are rotatably arranged within the mounting groove. Graduation lines are provided along the edge of the mounting groove. Movement of the magnetic float drives the magnetic floats to rotate. Two connecting branch pipes are located at opposite ends of the measuring main pipe. The vibration damping components include damping plates and springs. The damping plates are connected to the connecting branch pipes via springs, and the outer periphery of the damping plates is spaced apart from the inner wall of the connecting branch pipes. The springs are extendable and retractable along a second direction. This invention's magnetic float level gauge incorporates vibration damping components within the connecting branch pipes, which stabilize the liquid flow within the connecting branch pipes and improve the accuracy of the magnetic float level gauge in characterizing the liquid level.

[0004] However, the following drawbacks still exist in this device and existing technology:

[0005] Currently, level gauges are installed by screwing screws one by one into the container through flanges at both ends. This process is cumbersome, time-consuming, and labor-intensive. When installing on containers with uneven outer walls, using flange connections reduces the sealing of the level gauge connections, affecting its performance and failing to meet usage requirements. Utility Model Content

[0006] The purpose of this invention is to provide a level gauge with strong sealing performance.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A level gauge with strong sealing performance includes a level gauge body and a container body. The container body has a mounting hole. Two connecting branch pipes are provided on one side of both the upper and lower ends of the level gauge body. One end of each connecting branch pipe is integrally connected to the level gauge body. The connecting branch pipes are corresponding to the mounting holes and are slidably connected to the container body. A first limiting ring is provided on the outside of each connecting branch pipe and is integrally formed with the connecting branch pipe. An external thread is provided on the outer wall of the connecting branch pipe. A connecting cap is provided on the outside of the connecting branch pipe and is threadedly connected to the connecting branch pipe via the external thread. A second limiting ring is provided on one side of the connecting cap and is fixedly connected to the connecting cap. The second limiting ring is located on the outside of the connecting branch pipe, and the first and second limiting rings are located on both sides of the mounting hole.

[0009] By adopting the above technical solution, the connecting branch pipe is inserted into the interior of the container from the mounting hole on the outside of the container. A portion of the first limiting ring is inserted into the mounting hole. The connecting cap is used to connect with the connecting branch pipe, allowing the level gauge to be quickly installed on containers of different thicknesses. A portion of the second limiting ring is inserted into the mounting hole. As the connecting cap rotates, pressure is applied to the first and second limiting rings, making the first and second limiting rings fit tightly against the container, thus improving the sealing performance of the level gauge and container installation.

[0010] Furthermore, a scale bar is provided on one side of the liquid level gauge body, and the scale bar is fixedly connected to the liquid level gauge body. A drain valve is provided at the lower end of the liquid level gauge body, and the drain valve is connected to the liquid level gauge body by screws.

[0011] By adopting the above technical solution, the scale bar is used to read the real-time data of the level gauge, and the drain valve is opened to drain the residual liquid in the level gauge.

[0012] Furthermore, both the first limiting ring and the second limiting ring are frustum-shaped, with the front diameter of the first limiting ring and the second limiting ring being smaller than the inner diameter of the mounting hole, and the rear diameter of the first limiting ring and the second limiting ring being larger than the inner diameter of the mounting hole.

[0013] By adopting the above technical solution, both the first limiting ring and the second limiting ring are frustum-shaped, which facilitates insertion into the mounting hole, allowing the first limiting ring and the second limiting ring to better contact the container, and can meet the installation requirements of mounting holes with a diameter smaller than the rear end diameter of the first limiting ring and the second limiting ring.

[0014] Furthermore, the connecting cap is provided with an assembly hole, and a locking bolt is provided inside the assembly hole, and the locking bolt is threadedly connected to the connecting cap.

[0015] By adopting the above technical solution, a locking bolt is installed through the assembly hole. One end of the locking bolt contacts the outer wall of the connecting branch pipe, which limits the connection cap of the connection, prevents the connection cap from loosening, and improves the connection stability between the connecting branch pipe and the container.

[0016] Furthermore, a threaded groove is provided on the inner wall of the other end of the connecting branch pipe, and a filter disc is provided on one side of the connecting branch pipe, with the filter disc corresponding to the threaded groove, and the filter disc is threadedly connected to the connecting branch pipe.

[0017] By adopting the above technical solution, the filter disc is connected to the connecting branch pipe to filter the liquid flowing into the level gauge, preventing particulate impurities in the container from entering the level gauge and ensuring the accuracy of the level gauge.

[0018] Furthermore, a farad connecting plate is provided on one side of the first limiting ring, and the farad connecting plate is in contact with the first limiting ring. The farad connecting plate is located outside the connecting branch pipe and is fixedly connected to the connecting branch pipe. A sealing ring is provided on one side of the farad connecting plate, and the sealing ring is in contact with the farad connecting plate.

[0019] By adopting the above technical solution, when the inner diameter of the mounting hole is greater than the diameter of the rear end of the first limiting ring, the first limiting ring is fully inserted into the mounting hole. The connecting branch pipe can also be connected to the container through the farad connecting plate. The sealing ring can ensure the sealing performance of the connection between the connecting branch pipe and the container, thereby improving the applicability of the level gauge.

[0020] In summary, the beneficial technical effects of this utility model are as follows:

[0021] 1. The system employs a connecting branch pipe, a first limiting ring, a connecting cap, a second limiting ring, and a locking bolt. The connecting branch pipe is inserted into the container from the mounting hole on the outside of the container. A portion of the first limiting ring is inserted into the mounting hole. The connecting cap is used to connect with the connecting branch pipe, allowing for quick installation of the level gauge onto containers of different thicknesses. A portion of the second limiting ring is inserted into the mounting hole. As the connecting cap rotates, pressure is applied to the first and second limiting rings, ensuring a tight fit between them and the container, thus improving the sealing performance of the level gauge installation. One end of the locking bolt contacts the outer wall of the connecting branch pipe, limiting the connection cap and preventing it from loosening, thereby improving the stability of the connection between the connecting branch pipe and the container. Both the first and second limiting rings are frustum-shaped, facilitating insertion into the mounting hole and meeting the installation requirements of mounting holes with diameters smaller than the rear ends of the first and second limiting rings.

[0022] 2. A farad connecting plate and a sealing ring are adopted. When the inner diameter of the mounting hole is larger than the diameter of the rear end of the first limiting ring, the first limiting ring is fully inserted into the mounting hole. The connecting branch pipe can also be connected to the container through the farad connecting plate. The sealing ring can ensure the sealing of the connection between the connecting branch pipe and the container, thus improving the applicability of the level gauge. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of this practical application;

[0025] Figure 2 This is a diagram showing the connection relationship between the main body of this practical liquid level gauge and the main body of the container;

[0026] Figure 3 This is a structural diagram of the connection between the farad connecting plate and the first limiting ring and the connecting branch pipe in this practical application.

[0027] Figure 4 This is a practical book Figure 2 A magnified view of a portion of area A.

[0028] In the diagram, 1. Level gauge body; 2. Scale bar; 3. Drain valve; 4. Connecting branch pipe; 5. Farad connecting plate; 6. First limiting ring; 7. External thread; 8. Connecting cap; 9. Second limiting ring; 10. Container body; 11. Mounting hole; 12. Filter plate; 13. Threaded groove; 14. Assembly hole; 15. Locking bolt; 16. Sealing ring. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] 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.

[0031] Please see Figure 1-4This utility model provides a technical solution: a level gauge with strong sealing performance, comprising a level gauge body 1 and a container body 10. The container body 10 is provided with mounting holes 11. Connecting branch pipes 4 are provided on one side of both the upper and lower ends of the level gauge body 1. Two connecting branch pipes 4 are provided, and one end of each connecting branch pipe 4 is integrally connected to the level gauge body 1. The connecting branch pipes 4 correspond to the mounting holes 11 and are slidably connected to the container body 10. A first limiting ring 6 is provided on the outside of each connecting branch pipe 4, and the first limiting ring 6 is integrally formed with the connecting branch pipe 4. External threads 7 are provided on the outer wall of each connecting branch pipe 4. A connecting cap 8 is provided on the outside of each connecting branch pipe 4, and the connecting cap 8 is threadedly connected to the connecting branch pipe 4 via the external threads 7. Next, a second limiting ring 9 is provided on one side of the connecting cap 8, and the second limiting ring 9 is fixedly connected to the connecting cap 8. The second limiting ring 9 is located outside the connecting branch pipe 4, and the first limiting ring 6 and the second limiting ring 9 are located on both sides of the mounting hole 11. The connecting branch pipe 4 is inserted into the interior of the container from the mounting hole 11 on the outside of the container. A part of the first limiting ring 6 is inserted into the mounting hole 11. The connecting cap 8 is used to connect with the connecting branch pipe 4, and the level gauge is quickly installed with containers of different thicknesses. A part of the second limiting ring 9 is inserted into the mounting hole 11. As the connecting cap 8 rotates, pressure is applied to the first limiting ring 6 and the second limiting ring 9, so that the first limiting ring 6 and the second limiting ring 9 are tightly fitted with the container, improving the sealing performance of the level gauge and the container installation.

[0032] Please see Figure 1 and Figure 2 A scale bar 2 is provided on one side of the liquid level gauge body 1, and the scale bar 2 is fixedly connected to the liquid level gauge body 1. A drain valve 3 is provided at the lower end of the liquid level gauge body 1, and the drain valve 3 is connected to the liquid level gauge body 1 by screws. The scale bar 2 is used to read the real-time data of the liquid level gauge. The drain valve 3 is opened to drain the residual liquid in the liquid level gauge.

[0033] Please see Figure 1 , Figure 2 and Figure 3 The first limiting ring 6 and the second limiting ring 9 are both frustum-shaped. The diameter of the front end of the first limiting ring 6 and the second limiting ring 9 is smaller than the inner diameter of the mounting hole 11, and the diameter of the rear end of the first limiting ring 6 and the second limiting ring 9 is larger than the inner diameter of the mounting hole 11. The frustum-shaped design of the first limiting ring 6 and the second limiting ring 9 facilitates insertion into the mounting hole 11, allowing the first limiting ring 6 and the second limiting ring 9 to better contact the container and meet the installation requirements of the mounting hole 11, which has a diameter smaller than the rear end diameter of the first limiting ring 6 and the second limiting ring 9.

[0034] Please see Figure 2 and Figure 4The connecting cap 8 is provided with an assembly hole 14, and a locking bolt 15 is provided inside the assembly hole 14. The locking bolt 15 is threadedly connected to the connecting cap 8. The locking bolt 15 is installed through the assembly hole 14. One end of the locking bolt 15 contacts the outer wall of the connecting branch pipe 4 to limit the connection of the connecting cap 8, prevent the connecting cap 8 from loosening, and improve the connection stability between the connecting branch pipe 4 and the container.

[0035] Please see Figure 2 and Figure 3 A threaded groove 13 is provided on the inner wall of the other end of the connecting branch pipe 4. A filter plate 12 is provided on one side of the connecting branch pipe 4, and the filter plate 12 is correspondingly provided with the threaded groove 13. The filter plate 12 is threadedly connected to the connecting branch pipe 4. The filter plate 12 is connected to the connecting branch pipe 4 to filter the liquid flowing into the level gauge, prevent particulate impurities in the container from entering the level gauge, and ensure the accuracy of the level gauge.

[0036] Please see Figure 1 , Figure 2 and Figure 3 A farad connecting plate 5 is provided on one side of the first limiting ring 6, and the farad connecting plate 5 is in close contact with the first limiting ring 6. The farad connecting plate 5 is located outside the connecting branch pipe 4, and the farad connecting plate 5 is fixedly connected to the connecting branch pipe 4. A sealing ring 16 is provided on one side of the farad connecting plate 5, and the sealing ring 16 is in close contact with the farad connecting plate 5. When the inner diameter of the mounting hole 11 is larger than the diameter of the rear end of the first limiting ring 6, the first limiting ring 6 is fully inserted into the mounting hole 11. The connecting branch pipe 4 can also be connected to the container through the farad connecting plate 5. The sealing ring 16 can ensure the sealing performance of the connection between the connecting branch pipe 4 and the container, thereby improving the applicability of the level gauge.

[0037] Working principle: The connecting branch pipe 4 is inserted into the container through the mounting hole 11 on the outside of the container. A portion of the first limiting ring 6 is inserted into the mounting hole 11. The connecting cap 8 is used to connect to the connecting branch pipe 4, quickly installing the level gauge to containers of different thicknesses. A portion of the second limiting ring 9 is inserted into the mounting hole 11. As the connecting cap 8 rotates, pressure is applied to the first limiting ring 6 and the second limiting ring 9, tightly fitting them to the container. The locking bolt 15 is inserted into the assembly hole 14, with one end of the locking bolt 15 contacting the outer wall of the connecting branch pipe 4, limiting the connection of the connecting cap 8. The first limiting ring 6 and the second limiting ring 9 are both frustum-shaped, making it easy to insert into the mounting hole 11. This allows the first limiting ring 6 and the second limiting ring 9 to better contact the container, meeting the installation requirements of the mounting hole 11, which has a diameter smaller than the rear end diameter of the first limiting ring 6 and the second limiting ring 9. When the inner diameter of the mounting hole 11 is larger than the rear end diameter of the first limiting ring 6, the first limiting ring 6 is fully inserted into the mounting hole 11. The connecting branch pipe 4 can also be connected to the container through the farad connecting plate 5. The filter plate 12 is connected to the connecting branch pipe 4 to filter the liquid flowing into the level gauge, preventing particulate impurities in the container from entering the level gauge.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A liquid level gauge having high sealing property, comprising a liquid level gauge main body (1) and a container main body (10), characterized in that: The container body (10) is provided with a mounting hole (11), one side of the upper and lower ends of the liquid level meter body (1) is provided with a connecting branch pipe (4), the connecting branch pipe (4) is provided with two, and one end of the connecting branch pipe (4) is connected with the liquid level meter body (1) as a whole, the connecting branch pipe (4) is correspondingly provided with the mounting hole (11), and the connecting branch pipe (4) is slidably connected with the container body (10) in penetration, the outer portion of the connecting branch pipe (4) is provided with a first limiting ring (6), and the first limiting ring (6) is integrally arranged with the connecting branch pipe (4), the outer wall of the connecting branch pipe (4) is provided with an external thread (7), the outer portion of the connecting branch pipe (4) is provided with a connecting cap (8), and the connecting cap (8) is threadedly connected with the connecting branch pipe (4) through the external thread (7), one side of the connecting cap (8) is provided with a second limiting ring (9), and the second limiting ring (9) is fixedly connected with the connecting cap (8), the second limiting ring (9) is arranged outside the connecting branch pipe (4), and the first limiting ring (6) and the second limiting ring (9) are arranged on both sides of the mounting hole (11).

2. The liquid level meter with strong sealing according to claim 1, characterized in that: One side of the liquid level meter body (1) is provided with a scale bar (2), and the scale bar (2) is fixedly connected with the liquid level meter body (1), and the lower end of the liquid level meter body (1) is provided with a liquid discharge valve (3), and the liquid discharge valve (3) is connected with the liquid level meter body (1) through a screw.

3. The liquid level meter with strong sealing according to claim 1, characterized in that: The first limiting ring (6) and the second limiting ring (9) are both arranged in the shape of a circular truncated cone, the front end diameter of the first limiting ring (6) and the second limiting ring (9) is smaller than the inner diameter of the mounting hole (11), and the rear end diameter of the first limiting ring (6) and the second limiting ring (9) is larger than the inner diameter of the mounting hole (11).

4. The liquid level meter with strong sealing according to claim 1, characterized in that: The connecting cap (8) is provided with an assembly hole (14), and the assembly hole (14) is provided with a locking bolt (15) inside, and the locking bolt (15) is threadedly connected with the connecting cap (8).

5. The liquid level meter of claim 1, wherein: The inner wall of the other end of the connecting branch pipe (4) is provided with a threaded groove (13), one side of the connecting branch pipe (4) is provided with a filter disc (12), and the filter disc (12) is correspondingly arranged with the threaded groove (13), and the filter disc (12) is threadedly connected with the connecting branch pipe (4).

6. The liquid level meter of claim 1, wherein: One side of the first limiting ring (6) is provided with a faraday connection disc (5), and the faraday connection disc (5) is attached to the first limiting ring (6), the faraday connection disc (5) is arranged outside the connecting branch pipe (4), and the faraday connection disc (5) is fixedly connected with the connecting branch pipe (4), one side of the faraday connection disc (5) is provided with a sealing ring (16), and the sealing ring (16) is attached to the faraday connection disc (5).

Citation Information

Patent Citations

  • Magnetic flap liquid level meter

    CN220120210U