Liquid level display device

Abstract

The utility model provides a liquid level display device, and belongs to the field of liquid level measurement. The device comprises a magnetostriction liquid level meter, an LED lamp strip and a controller, the magnetostriction liquid level meter comprises a magnetic levitation ball suspended on the surface of liquid stored in a tank body, and the magnetostriction liquid level meter is used for sensing the liquid level position through the magnetic levitation ball and generating a sensing signal based on the liquid level position; and the controller is used for acquiring a sensing signal and converting the sensing signal into a control signal, so that the specific area of the LED lamp strip is controlled to be lightened through the control signal, and the amount of liquid stored in the tank body is visually displayed. By means of the liquid level display device, liquid level display of the liquid level display device is safe and stable, the service life is long, the visual degree is high, and the problems that a traditional liquid level display device is not high in display accuracy, and fault risks exist in the structural design of the traditional liquid level display device can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid level measurement, and particularly relates to a liquid level display device. Background Art

[0002] In liquid level measurement, a level gauge is an instrument used to measure the height of the liquid in a container. Traditional manual depth measurement methods are gradually being replaced by level gauges. Tanks are often used in industry to process or store liquids, and level gauges are often installed to strictly control the liquid level range. Most level gauges use a series of sealed connecting pipes to guide the internal liquid and operating conditions to a cavity or measuring instrument outside the tank. The liquid level is then measured outside the tank using a float or differential pressure level gauge.

[0003] When transferring materials from a tank truck to a storage tank or other pump, the liquid level is typically displayed using traditional level display devices such as mechanical floats, transparent glass tubes, magnetic flaps, and differential pressure gauges to display the real-time liquid level. However, these traditional level display devices often cause spills due to inaccurate display or device failure. For example, a mechanical float level display device uses a float bolt rope to display the liquid level inside the barrel through the counterweight of a fixed pulley outside the container. This device is subject to failures such as rope breakage and pulley jamming, and because it requires an open hole at the top, it cannot be used for tanks with volatile liquids. For another example, transparent glass tubes, magnetic flaps, differential pressure gauges, and other level display devices all require a connecting hole at the bottom of the tank, posing a safety hazard of leakage.

[0004] Therefore, how to solve the problems of low display accuracy and failure risk of traditional liquid level display devices and their own structural design is an urgent issue to be solved by those skilled in the art. Utility Model Content

[0005] In order to solve at least one of the above technical problems, the present invention provides a liquid level display device, which has the characteristics of accurate liquid level display and can avoid the risk of failure caused by the structural design defects of traditional liquid level display devices.

[0006] This application provides a liquid level display device for measuring the liquid level in a tank; the liquid level display device comprises:

[0007] A magnetostrictive level gauge, the measuring end of which extends into the liquid stored in the tank;

[0008] LED light strips are arranged along the height direction of the tank;

[0009] a controller electrically connected to the magnetostrictive liquid level gauge and the LED light, respectively;

[0010] Among them, the magnetostrictive liquid level gauge includes a magnetic float ball suspended on the surface of the liquid stored in the tank. The magnetostrictive liquid level gauge is used to sense the liquid level position through the magnetic float ball and generate a sensor signal based on the liquid level position; the controller is used to obtain the sensor signal and convert the sensor signal into a control signal so that a specific area of the LED light strip is controlled to light up through the control signal, thereby intuitively presenting the amount of liquid stored in the tank.

[0011] Compared to existing technologies, the present invention offers the following advantages: a controller is electrically connected to a magnetostrictive level gauge and an LED light strip, allowing the magnetic float to sense the liquid level. The magnetostrictive level gauge generates a sensor signal based on the liquid level. The controller, upon receiving the sensor signal, converts the sensor signal into a control signal, which then illuminates specific areas of the LED light strip, visually displaying the amount of liquid stored in the tank. This device provides a safe and stable liquid level display, eliminating the need for bottom openings to prevent damage to the tank's integrity. Furthermore, the control components are shielded from direct contact with the liquid, preventing corrosion and extending their service life. Furthermore, the device offers high visibility, making it suitable for nighttime or low-light work sites.

[0012] Preferably, the specific area of the LED light strip includes one of a yellow light strip, a green light strip and a red light strip; the yellow light strip, the green light strip and the red light strip are arranged in sequence from bottom to top.

[0013] Preferably, the lengths of the yellow light strip, the green light strip and the red light strip are set according to the volume of the tank.

[0014] Preferably, the length of the yellow light strip is set in the range of 0% to 30% of the tank volume, the length of the green light strip is set in the range of 31% to 80% of the tank volume, and the length of the red light strip is set in the range of 81% to 100% of the tank volume.

[0015] Preferably, the magnetostrictive liquid level gauge includes a sensor module, a waveguide tube and the magnetic float ball, wherein the magnetic float ball is arranged on the waveguide tube; one end of the waveguide tube is connected to the sensor module, and the other end thereof extends into the liquid stored in the tank.

[0016] Preferably, the magnetic levitation ball is provided on the outside of the waveguide tube, and the magnetic levitation ball is sleeve-fitted with the waveguide tube.

[0017] Preferably, the magnetic levitation ball is provided beside the waveguide tube, and the magnetic levitation ball is a structure without a center hole.

[0018] Preferably, the controller includes a control module, a signal conversion module and a single-chip microprocessor chip, the control module is electrically connected to the magnetostrictive liquid level gauge and the signal conversion module respectively, and the single-chip microprocessor chip is electrically connected to the signal conversion module and the LED light strip respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 A schematic diagram of a liquid level display device provided in Example 1 of the present utility model;

[0021] Figure 2 This is a schematic diagram of the liquid level display device provided in Example 1 of the present utility model (the tank body is in a cross-sectional state);

[0022] Figure 3 This is a control principle diagram of the liquid level display device provided in Example 1 of the present utility model.

[0023] Figure 4 This is a schematic diagram of the liquid level display device (the tank body is in a cross-sectional state) provided in Example 2 of the present utility model.

[0024] Description of reference numerals:

[0025] 10-magnetostrictive liquid level gauge, 11-sensor module, 12-waveguide tube, 13-the magnetic float ball.

[0026] 20-controller, 21-control module, 22-signal conversion module, 23-single chip microprocessor chip.

[0027] 30-LED light strip, 31-yellow light strip, 32-green light strip, 33-red light strip. DETAILED DESCRIPTION

[0028] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0031] Example 1

[0032] like Figure 1 As shown, this embodiment provides a liquid level display device for measuring the liquid level within a tank. Specifically, the liquid level display device includes a magnetostrictive liquid level gauge 10, a controller 20, and an LED light strip 30. The controller 20 is electrically connected to the magnetostrictive liquid level gauge 10 and the LED light strip 30, respectively. In practice, the magnetostrictive liquid level gauge 10 can be fixed above the tank via a bracket or clamping device, with its measuring end extending into the tank. The controller 20 can be positioned and mounted outside the tank via a fixing device.

[0033] Furthermore, the LED light strip 30 is composed of a yellow light strip 31, a green light strip 32 and a red light strip 33. Each color is defined as a special area, and the lights in different special areas are used to represent the storage volume of the liquid in the tank; preferably, the lengths of the yellow light strip 31, the green light strip 32 and the red light strip 33 are set according to the volume of the tank. In specific practice, the yellow light strip, the green light strip and the red light strip are arranged in sequence from bottom to top. In order to clearly illustrate the objects represented by each special area, this embodiment uses the injection of liquid into the tank to illustrate: when the yellow light strip is in the illuminated state, it indicates that the storage volume of the liquid in the tank is small, and it is a reminder that liquid still needs to be injected into the tank; when the green light strip is in the illuminated state, it indicates that the storage volume of the liquid in the tank is normal, and it is possible to stop injecting liquid or continue injecting liquid; when the red light strip is in the illuminated state, it indicates that the storage volume of the liquid in the tank is large, and it is possible to stop injecting liquid. This embodiment uses a cylindrical tank as an example to measure the amount of liquid stored in the tank. LED light strips are arranged along the height of the tank. The length of the yellow light strip is set between 0% and 30% of the tank volume, the length of the green light strip is set between 31% and 80% of the tank volume, and the length of the red light strip is set between 81% and 100% of the tank volume. In other words, when the yellow light strip is on, it indicates that the liquid level in the tank is between 0% and 30% of the total tank volume; when the green light strip is on, it indicates that the liquid level in the tank is between 31% and 80% of the total tank volume; and when the yellow light strip is on, it indicates that the liquid level in the tank is between 81% and 100% of the total tank volume.

[0034] like Figure 2 As shown, the magnetostrictive liquid level gauge 10 includes a sensor module 11, a waveguide tube 12, and a magnetic float ball 13. The sensor module 11 is mounted at the upper end of the waveguide tube 12. One end of the waveguide tube 12 is connected to the sensor module 11, and the other end extends into the liquid stored in the tank. In practice, the magnetic float ball 13 is mounted on the waveguide tube 12, constantly suspended above the liquid surface in the tank to sense the liquid level.

[0035] Furthermore, the magnetic levitation ball 13 is provided on the outside of the waveguide 12, and the magnetic levitation ball 13 is sleeved and mated with the waveguide 12. In practice, when the power is turned on, the magnetostrictive liquid level meter emits a pulsed current magnetic field through the waveguide. When the pulsed current magnetic field contacts the magnetic levitation ball, a torsional wave pulse is generated. The pulse is transmitted back to the sensor module along the waveguide at a fixed speed for feedback. The magnetostrictive liquid level meter can calculate the liquid level in the tank based on the time difference of the feedback, thereby accurately monitoring the liquid level in the tank.

[0036] like Figure 3As shown, the controller 20 includes a control module 21, a signal conversion module 22, and a single-chip microprocessor chip 23. The control module 21 is electrically connected to the sensor module 11 and the signal conversion module 22 in the magnetostrictive liquid level gauge, respectively, and the single-chip microprocessor chip 23 is electrically connected to the signal conversion module 22 and the LED light strip 30, respectively. It should be noted that the electrical connection between the control module and the magnetostrictive liquid level gauge is specifically an electrical connection with its sensor module. In specific practice, the liquid level position is sensed by a magnetic float, and the magnetostrictive liquid level gauge generates a sensor signal based on the liquid level position. The controller that obtains the sensor signal converts the sensor signal into a control signal through the signal conversion module. The single-chip microprocessor chip controls the lighting of a specific area of the LED light strip based on the acquired control signal, thereby intuitively presenting the amount of liquid stored in the tank. For example, if the tank height is set to 10 meters, the length of the LED light strip is also set to 10 meters. The sensor module in the magnetostrictive liquid level gauge is set to a sensor signal of 0-100%, corresponding to a measurement range of 0-10 meters. When the magnetic float ball of the liquid level is at a certain scale, the sensor module of the magnetostrictive liquid level gauge outputs a signal corresponding to X%, and the controller controls the LED lights in the specific area of X% to light up, thereby intuitively displaying the liquid level height in the tank.

[0037] In summary, the operating mechanism of this embodiment is as follows: Fluctuations in the liquid level within the tank cause the magnetic float to move up and down. A magnetostrictive level gauge can sense the liquid level in the tank in real time. The sensor module in the magnetostrictive level gauge generates a sensor signal based on the liquid level. A controller, which receives the sensor signal, converts it into a control signal via a signal conversion module. Based on the received control signal, the microcontroller chip illuminates specific areas of the LED light strip, thereby visually displaying the amount of liquid stored in the tank. Application of this embodiment to liquid level display within a tank eliminates the need for openings in the tank bottom, preventing damage to the tank's integrity and ensuring a safe and stable liquid level display. Furthermore, the controller and other control components are not in direct contact with the liquid within the tank, preventing corrosion and extending the device's service life. Furthermore, the high level of visualization makes it suitable for nighttime or low-light work sites, preventing operators from misjudging the liquid level due to unclear display. Furthermore, the LED light strip can be set to different colors based on the liquid level, providing timely warnings of insufficient or excessive material.

[0038] Example 2

[0039] like Figure 4As shown, this embodiment differs from Example 1 in that a magnetic levitation ball 13 is provided adjacent to the waveguide 12, and the ball 13 lacks a center hole. Because the ball lacks a center hole, under equivalent operating conditions, it can be smaller in diameter and more robust than a ball with a center hole. Furthermore, compared to a ball with a center hole, the ball has fewer welds, avoids center hole blockage, and has a lower failure rate.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A liquid level display device, used for measuring the liquid level in a tank; characterized in that: The liquid level display device comprises: A magnetostrictive level gauge, the measuring end of which extends into the liquid stored in the tank; LED light strips are arranged along the height direction of the tank; a controller electrically connected to the magnetostrictive liquid level gauge and the LED light, respectively; Among them, the magnetostrictive liquid level gauge includes a magnetic float ball suspended on the surface of the liquid stored in the tank. The magnetostrictive liquid level gauge is used to sense the liquid level position through the magnetic float ball and generate a sensor signal based on the liquid level position; the controller is used to obtain the sensor signal and convert the sensor signal into a control signal so that a specific area of the LED light strip is controlled to light up through the control signal, thereby intuitively presenting the amount of liquid stored in the tank.

2. The liquid level display device according to claim 1, characterized in that The specific area of the LED light strip includes one of a yellow light strip, a green light strip and a red light strip; the yellow light strip, the green light strip and the red light strip are arranged in sequence from bottom to top.

3. The liquid level display device according to claim 2, characterized in that: The lengths of the yellow light strip, the green light strip, and the red light strip are set according to the volume of the tank.

4. The liquid level display device according to claim 3, characterized in that: The length of the yellow light strip is set in the range of 0% to 30% of the tank volume, the length of the green light strip is set in the range of 31% to 80% of the tank volume, and the length of the red light strip is set in the range of 81% to 100% of the tank volume.

5. The liquid level display device according to claim 1, characterized in that: The magnetostrictive liquid level gauge includes a sensor module, a waveguide tube and the magnetic float ball, wherein the magnetic float ball is arranged on the waveguide tube; one end of the waveguide tube is connected to the sensor module, and the other end thereof extends into the liquid stored in the tank body.

6. The liquid level display device according to claim 5, characterized in that: The magnetic levitation ball is provided on the outside of the waveguide tube, and the magnetic levitation ball is sleeve-fitted with the waveguide tube.

7. The liquid level display device according to claim 5, characterized in that: The magnetic levitation ball is provided on the side of the waveguide tube, and the magnetic levitation ball has a structure without a central hole.

8. The liquid level display device according to any one of claims 1 to 7, characterized in that: The controller includes a control module, a signal conversion module and a single-chip microprocessor chip. The control module is electrically connected to the magnetostrictive liquid level gauge and the signal conversion module respectively, and the single-chip microprocessor chip is electrically connected to the signal conversion module and the LED light strip respectively.

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