Liquid level switch with display function

Abstract

The utility model provides a liquid level switch with a display function, which belongs to the technical field of liquid level switches and comprises a shell, a circuit board body arranged in the shell, a vibration tuning fork arranged at the bottom of the shell, a shell cover arranged at the top of the shell, a mounting seat arranged in the shell and a display screen arranged on one side of the mounting seat. The display screen is connected with the mounting base through the sealing assembly, the mounting base is connected with the shell through the protection assembly, the shell is sleeved with the connecting flange, and due to the arrangement of the sealing assembly, a user can conduct sealing protection on the display screen, and the situation that normal display and the service life of the display screen are affected due to the fact that external impurities enter the display screen is reduced; the protection performance of the device on the display screen is improved, through the arrangement of the protection assembly, the device can reduce external electromagnetic interference and buffer impacts on the device, stable and reliable operation of the device is guaranteed, and the adaptability of the device is improved.

Description

A liquid level switch with display function Technical Field

[0001] This utility model belongs to the field of liquid level switch technology, and more specifically, it relates to a liquid level switch with display function. Background Technology

[0002] In many fields such as industrial production, warehousing and logistics, and daily life, liquid level switches are widely used as a common liquid level control and monitoring device in various liquid storage containers. This allows users to monitor the liquid level status in real time and automatically control the operation of related equipment based on changes in the liquid level. However, liquid level switches on the market usually use LED light displays. To determine the status of the LED light, it is necessary to open the cover while the power is on. This operation is not only dangerous and can easily lead to electric shock or other violations, but also, the LED light display can only simply indicate whether the equipment is in normal, alarm, or fault state. The information display is too simplistic and cannot meet the user's need for a more detailed understanding of the equipment's operating status. Therefore, a liquid level switch with a display function is needed.

[0003] For example, Chinese utility model patent No. 202321630149.9 provides a tuning fork level switch with frequency display and magnet adjustment functions. This device can intuitively and conveniently determine whether the equipment is in a working state or a fault state through the frequency display screen, saving time in troubleshooting potential problems. It also provides an attached status light display function, which allows the device to determine the working status of the equipment from a distance or in rainy or foggy weather. However, existing level switches have the problem of lacking effective sealing protection for the display screen. In some humid, dusty or corrosive gas environments, the display screen is easily damaged by moisture, dust, or corrosion, affecting the normal use and status observation of the equipment. In addition, existing level switches lack protection measures for internal electronic components, which are susceptible to external environmental factors, such as electromagnetic interference, reducing the stability and service life of the equipment. Summary of the Invention

[0004] To address the aforementioned technical problems, this utility model provides a liquid level switch with a display function, thereby solving the technical problem that existing liquid level switches lack sealing protection for the display screen and effective protection for internal electronic components.

[0005] The purpose and effect of this utility model of a liquid level switch with display function are achieved by the following specific technical means:

[0006] A liquid level switch with display function includes a housing, a circuit board body disposed inside the housing, a vibrating tuning fork disposed at the bottom of the housing, a housing cover disposed at the top of the housing, a mounting base disposed inside the housing, a display screen disposed on one side of the mounting base, the display screen being connected to the mounting base via a sealing component, the mounting base being connected to the housing via a protective component, and a connecting flange being fitted onto the housing.

[0007] According to a preferred embodiment, the sealing assembly includes a connecting frame disposed within the housing, the connecting frame having multiple sets of ultrasonic wires integrally formed thereon.

[0008] According to a preferred embodiment, the multiple sets of ultrasonic wires are connected by multiple sets of adhesive strips, and both the multiple sets of adhesive strips and the ultrasonic wires are disposed within the mounting base.

[0009] According to a preferred embodiment, the display screen is disposed within the connecting frame, and a transparent window is provided on one side of the connecting frame, the transparent window being connected to the housing via a sealing ring.

[0010] According to a preferred embodiment, the protective component includes an electromagnetic shielding pad disposed at the bottom of the circuit board body, and the mounting base is connected to the housing via a buffer frame.

[0011] According to a preferred embodiment, both the electromagnetic shielding pad and the circuit board body are disposed within the mounting base, the buffer frame is connected to the mounting base through multiple sets of sponge pads, and the housing is filled with explosion-proof adhesive.

[0012] According to a preferred embodiment, a mesh is detachably connected to the bottom of the housing, the vibrating tuning fork is disposed within the mesh through the connecting flange, and multiple sets of reinforcing columns are disposed within the mesh.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model, through the setting of the sealing component, enables users to seal and protect the display screen, preventing external moisture, dust and other impurities from entering and affecting the normal display and service life of the display screen, thus improving the protective performance of the device for the display screen; after the sealing component is installed, users can use the protective component to resist external electromagnetic interference and buffer possible impacts, ensuring the stable and reliable operation of the liquid level switch in complex electromagnetic environments or working conditions that may be subject to vibration and impact, thus improving the adaptability of the device.

[0015] 2. When using this device, the user can filter larger particles of impurities in the medium through the screen, preventing these impurities from contacting and damaging the vibrating tuning fork. This reduces the number of times the user needs to clean or repair the vibrating tuning fork, thus improving the device's operational stability. Furthermore, the reinforcing columns enhance the structural strength of the screen, making it less prone to deformation and damage when subjected to long-term media impacts. This extends the screen's service life, reduces the frequency of screen replacement, lowers maintenance costs, and improves the overall durability of the device. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the assembled structure of this utility model;

[0017] Figure 2 is a schematic diagram of the exploded structure of this utility model;

[0018] Figure 3 is a side view of the structure of this utility model;

[0019] Figure 4 is a schematic diagram of the sealing structure of this utility model;

[0020] Figure 5 is a schematic diagram of the structure of region A in Figure 4 of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 11. Housing; 12. Circuit board body; 13. Vibrating tuning fork; 14. Housing cover; 15. Mounting base; 16. Display screen; 17. Partition mesh; 21. Connecting frame; 22. Ultrasonic wire; 23. Adhesive strip; 24. Transparent window; 25. Sealing ring; 31. Electromagnetic shielding gasket; 32. Buffer frame; 33. Sponge pad; 34. Explosion-proof glue. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0024] Example:

[0025] As shown in Figures 1 to 3, this utility model provides a liquid level switch with display function, including a housing 11. The housing 11 provides a stable external frame for the device, allowing the user to properly place the internal components, thus improving the overall stability and reliability of the device. A circuit board body 12 is installed inside the housing, enabling the user to control the circuit and process signals of the liquid level switch. This allows the device to accurately detect the liquid level and provide corresponding feedback, improving its functionality and intelligence, and enhancing the user's ability to detect liquid levels. A vibrating tuning fork 13 is installed at the bottom of the housing, which uses its vibration characteristics to respond sensitively to changes in liquid level, allowing the user to perceive the liquid level and improving the sensitivity and accuracy of the device's liquid level detection. A cover 14 is installed at the top of the housing, allowing the user to seal and protect the components inside the housing 11, preventing the intrusion of external dust, moisture, and other impurities. This effectively protects the internal environment of the device, improving its sealing and protection capabilities, and enhancing the user's ability to protect the internal components.

[0026] A connecting flange is fitted onto the housing 11, which allows for easy connection and fixation of the device to external pipes or equipment. This enables users to easily install the device into different systems, improving its ease of installation and versatility. A mesh 17 is detachably connected to the bottom of the housing 11. The vibrating tuning fork 13 passes through the connecting flange and is housed within the mesh 17. The mesh 17 allows users to filter larger particles of impurities in the medium flowing through the level switch, reducing damage to the vibrating tuning fork 13 and ensuring stable operation of the device. This improves the device's adaptability and enhances the user's ability to cope with different working environments. Multiple sets of reinforcing columns are installed within the mesh 17, which strengthens the structure of the mesh 17, making it less prone to deformation and damage, reducing the frequency of mesh 17 replacement, and improving the durability of the mesh 17. This, in turn, improves the service life and stability of the device.

[0027] As shown in Figures 2 and 5, a mounting base 15 is provided inside the housing, and a display screen 16 is provided on one side of the mounting base 15. The mounting base 15 provides a stable fixed position for the display screen 16, allowing users to easily fix the display screen 16 in a suitable position inside the housing 11, thus improving the convenience and stability of the installation of the display screen 16. Users can obtain liquid level information through the display screen 16, enabling the device to present liquid level data in a visual way, improving the intuitiveness of the information display and the convenience of users to read liquid level information. The display screen 16 is connected to the mounting base 15 through a sealing component. The sealing component effectively protects the display screen 16 from external moisture, dust, etc., improving the protective performance of the device for the display screen 16. The sealing component includes a connecting frame 21, which is disposed inside the housing 11. The connecting frame 21 tightly connects the display screen 16 and the mounting base 15, ensuring that the display screen 16 is securely installed on the mounting base 15. This enhances the stability of the device's connection structure. The connecting frame 21 has multiple ultrasonic lines 22 integrally formed on it. These ultrasonic lines enhance the sealing performance of the connecting frame 21, reducing the intrusion of external moisture and dust during use. This improves the sealing effect of the device's sealing components and further enhances the protection of the display screen 16.

[0028] Multiple ultrasonic wires 22 are connected by multiple sets of adhesive strips 23. This connection of adhesive strips 23 further enhances the integrity and sealing of the ultrasonic wires 22, allowing the sealing components to better resist the intrusion of external impurities during device operation, thus improving the protective performance of the device's sealing components. The multiple sets of adhesive strips 23 and ultrasonic wires 22 are all housed within the mounting base 15, while the display screen 16 is housed within the connecting frame 21. The connecting frame 21 provides a stable support structure for the display screen 16, ensuring its stability during operation and preventing shaking or displacement, thereby improving the installation of the display screen 16. To ensure robustness, a transparent window 24 is provided on one side of the connecting frame 21, allowing users to clearly observe the content on the display screen 16. This ensures that the device can guarantee the sealed protection of the display screen 16 without affecting the user's ability to read liquid level information, thus improving the convenience of information acquisition. The transparent window 24 is connected to the housing 11 through a sealing ring 25. The connection of the sealing ring 25 forms an additional sealing barrier between the connecting frame 21 and the housing 11, further enhancing the overall sealing of the device and preventing external factors from affecting the display screen 16 and internal circuitry, thereby improving the overall protection capability of the device.

[0029] The mounting base 15 is connected to the housing 11 via a protective component. This structure provides protection for the mounting base 15, reducing the impact of external interference factors and improving the overall stability and reliability of the device. The protective component includes an electromagnetic shielding pad 31, which effectively shields external electromagnetic interference, improving the device's resistance to electromagnetic interference. The electromagnetic shielding pad 31 is located at the bottom of the circuit board body 12. This structure protects the circuit board body 12 from electromagnetic interference, allowing users to ensure the stable operation of the liquid level switch and improving the electromagnetic protection effect of the device on the circuit board body 12. Both the electromagnetic shielding pad 31 and the circuit board body 12 are located within the mounting base 15, allowing users to fully utilize the space of the mounting base 15 to achieve a compact protective layout, improving the rationality and integration of the device's internal space layout.

[0030] The mounting base 15 is connected to the housing 11 via a buffer frame 32. The buffer frame 32 acts as a buffer, effectively protecting the mounting base 15 and its components when the device is subjected to vibration or impact, thus enhancing the device's ability to withstand vibration and impact. The buffer frame 32 is connected to the mounting base 15 via multiple sets of sponge pads 33, which can be used to enhance the buffering effect. This allows the device to effectively mitigate impact forces when faced with vibrations or impacts of varying degrees, improving the efficiency of the device's buffer structure and enhancing its protective capabilities. The housing is filled with explosion-proof adhesive 34, which forms an explosion-proof barrier inside the device, suppressing the spread of device fragments after an explosion, reducing the damage to the device and the surrounding environment, improving the device's explosion-proof safety, and ensuring the safety of the user and the integrity of the device.

[0031] The specific usage and function of this embodiment are as follows:

[0032] When installing this level switch, the user first connects the housing 11 to external pipes or equipment via the connecting flange, enabling installation in different systems. The cover 14 is tightly installed on the top of the housing 11, providing a sealed protection for internal components, reducing the intrusion of impurities, and ensuring a stable internal environment. During level detection, the vibrating tuning fork 13 responds to changes in the liquid level using its vibration characteristics, transmitting the liquid level information to the circuit board body 12. The circuit board body 12 detects the liquid level and provides corresponding feedback, demonstrating the functionality and intelligence of the device and helping the user accurately grasp the liquid level. Simultaneously, the mesh 17 filters the flowing medium, blocking larger particles of impurities, protecting the vibrating tuning fork 13, improving the adaptability of the device in different working environments, reducing malfunctions caused by impurities, reinforcing the structure of the mesh 17, extending its service life, reducing replacement frequency, and ensuring long-term stability of the device. During operation, users can obtain liquid level information through the display screen 16. The transparent window 24 ensures that while the display screen 16 is sealed and protected, users can easily read the data. The connecting frame 21, ultrasonic wire 22, rubber strip 23, and sealing ring 25 in the sealing assembly work together to provide multiple protections for the display screen 16, effectively blocking the intrusion of external impurities, improving protection performance and connection stability. In an electromagnetic environment, the electromagnetic shielding gasket 31 plays a role in shielding external electromagnetic interference, protecting the circuit board body 12, and ensuring the stable operation of the liquid level switch. When the device is subjected to vibration or impact, the buffer frame 32 and multiple sets of sponge pads 33 work together to effectively buffer and reduce shock, protecting the mounting base 15 and its components. The explosion-proof rubber 34 filled inside the shell forms an explosion-proof barrier when facing the risk of explosion, inhibiting the spread of explosion fragments, reducing damage to the device and the surrounding environment, and ensuring user safety and device integrity.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A liquid level switch having a display function, characterized by: The device includes a housing (11), a circuit board body (12) inside the housing (11), a vibrating tuning fork (13) at the bottom of the housing (11), a cover (14) at the top of the housing (11), a mounting base (15) inside the housing (11), a display screen (16) on one side of the mounting base (15), the display screen (16) being connected to the mounting base (15) via a sealing assembly, the mounting base (15) being connected to the housing (11) via a protective assembly, and a connecting flange fitted on the housing (11).

2. The liquid level switch with display function according to claim 1, characterized in that: The sealing assembly includes a connecting frame (21), which is disposed inside the housing (11), and multiple sets of ultrasonic wires (22) are integrally formed on the connecting frame (21).

3. A liquid level switch with display function according to claim 2, characterized in that: Multiple sets of ultrasonic wires (22) are connected by multiple sets of adhesive strips (23), and the multiple sets of adhesive strips (23) and ultrasonic wires (22) are all disposed in the mounting base (15).

4. The liquid level switch with display function according to claim 3, characterized in that: The display screen (16) is disposed within the connecting frame (21), and a transparent window (24) is provided on one side of the connecting frame (21). The transparent window (24) is connected to the housing (11) through a sealing ring (25).

5. The liquid level switch with display function according to claim 1, characterized in that: The protective component includes an electromagnetic shielding pad (31), which is disposed at the bottom of the circuit board body (12), and the mounting base (15) is connected to the housing (11) through a buffer frame (32).

6. A liquid level switch with display function according to claim 5, characterized in that: The electromagnetic shielding pad (31) and the circuit board body (12) are both disposed in the mounting base (15). The buffer frame (32) is connected to the mounting base (15) through multiple sets of sponge pads (33). The housing (11) is filled with explosion-proof glue (34).

7. The liquid level switch with display function according to claim 1, characterized in that: The bottom of the housing (11) is detachably connected to a mesh (17), and the vibrating tuning fork (13) passes through the connecting flange and is disposed in the mesh (17). Multiple sets of reinforcing columns are disposed in the mesh (17).

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