An ultrasonic liquid level detector

Abstract

The utility model discloses an ultrasonic liquid level detector, apply in the field of detection equipment, solved the existing detector detection process easily moves and cannot guarantee the technical problem of the stability and accuracy of detection process, and its technical scheme main points are including liquid level meter body, be equipped with control block, power block, ultrasonic generation block and signal receiving block in the liquid level meter body, the end of liquid level meter body is equipped with the probe block in communication with ultrasonic generation block and signal receiving block, still be equipped with horizontal calibration subassembly on the liquid level meter body, the horizontal calibration subassembly includes the detection pressure plate of setting in the vertical direction both sides of probe block, the pressure sensing suite of setting in the liquid level meter body and the pressure sensing feedback subassembly that cooperate with detection pressure plate, the pressure sensing suite includes the pressure sensing cavity of setting in the liquid level meter body and the pressure sensing block of setting in the pressure sensing cavity, has the technical effect of being favorable to improving the stability and scientific accuracy of operation in actual detection process.

Description

Technical Field

[0001] This utility model relates to the field of detection equipment, and in particular to an ultrasonic liquid level detector. Background Technology

[0002] A level gauge is an instrument used to measure the height of liquids or gases. Its working principle involves utilizing physical phenomena and technical principles such as buoyancy, pressure, or ultrasonic waves to measure the liquid level. Level gauges are widely used in industries such as petroleum, chemical, pharmaceutical, and food to monitor and control liquid levels, ensuring production safety. Handheld level gauges are non-fixed type with a handle for easy handling and movement. In actual use, the user places the end of the handheld level gauge against the side wall of the container to be measured, and obtains the liquid level through the emission and reflection of ultrasonic signals. However, when dealing with tank storage containers with curved surfaces and large inner diameters, the ultrasonic probe is prone to slippage when in contact with the tank sidewall, leading to deviations in the actual working state of the ultrasonic probe. If the ultrasonic probe of the level gauge emits ultrasonic waves in a downward tilted position close to the sidewall of the container, it can still detect the liquid level inside the container, resulting in inaccurate detection of the liquid level height. This leads to errors in the detection of the liquid level. Users often rely on personal experience and operating habits, and cannot correct the deviations in practice in a timely manner, resulting in significant errors in the measured liquid level data inside the container. Utility Model Content

[0003] The purpose of this invention is to provide an ultrasonic liquid level detector, which has the advantage of improving the stability and scientific nature of the operation during the detection process.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an ultrasonic liquid level detector, comprising a liquid level gauge body, wherein a control block, a power supply block, an ultrasonic generator block, and a signal receiver block are provided inside the liquid level gauge body, and a probe block communicating with the ultrasonic generator block and the signal receiver block is provided at the end of the liquid level gauge body. The liquid level gauge body is characterized by the following: a horizontal calibration component is also provided on the liquid level gauge body. The horizontal calibration component includes detection pressure plates disposed on both sides of the probe block in the vertical direction, a pressure sensing kit disposed inside the liquid level gauge body and cooperating with the detection pressure plates, and a pressure sensing feedback component. The pressure sensing kit includes a pressure sensing cavity disposed inside the liquid level gauge body and a pressure sensing block disposed inside the pressure sensing cavity. The detection pressure plate is slidably connected to the pressure sensing cavity. A telescopic sensing spring is provided between one end of the detection pressure plate extending into the pressure sensing cavity and the pressure sensing block. One end of the telescopic sensing spring is sleeved with the detection pressure plate. The pressure sensing feedback component includes a vibration generator block disposed inside the liquid level gauge body away from the probe block and a warning light block installed on the liquid level gauge body. The pressure sensing feedback component is controlled by the control block. Furthermore: the end of the detection plate is provided with a limiting block for the telescopic sensing spring to engage. Furthermore: multiple telescopic sensing springs are provided, and an auxiliary pressure plate is provided at the end of each spring near the pressure sensing block. The auxiliary pressure plate has multiple spring insertion holes, and the auxiliary pressure plate abuts against the pressure sensing block. Furthermore: the bottom of the pressure sensing chamber is provided with a correction groove, and the detection plate is provided with a correction strip that slides into the correction groove. Furthermore: the end of the detection plate is provided with an elastic anti-slip pad. Furthermore: a protective sleeve is also provided on the level gauge body at one end of the probe block.

[0005] In summary, this utility model has the following beneficial effects:

[0006] 1. Through the auxiliary setting of the horizontal calibration component, the horizontal detection status can be adjusted and corrected in real time during the use of the detector. Relying on the pressure contact between the detection plate and the side of the actual detection tank and the data feedback analysis, the pressure sensing feedback component helps the user to use the detection instrument efficiently and ensures the scientific accuracy of the final detection results. Attached Figure Description

[0007] Figure 1 is a cross-sectional schematic diagram showing the internal structure of the liquid level detector in the embodiment;

[0008] Figure 2 is an enlarged view of A in Figure 1.

[0009] Reference numerals in the attached diagram: 1. Level gauge body; 2. Control block; 3. Power supply block; 4. Ultrasonic generator block; 5. Signal receiver block; 6. Probe block; 7. Detection plate; 8. Pressure sensing chamber; 9. Pressure sensing block; 10. Telescopic sensing spring; 11. Vibration generator block; 12. Warning light block; 13. Limiting block; 14. Auxiliary pressure plate block; 15. Spring socket; 16. Correction groove; 17. Correction strip block; 18. Elastic anti-slip pad block; 19. Protective cover. Detailed Implementation

[0010] The present invention will be further described in detail below with reference to the accompanying drawings.

[0011] Example: An ultrasonic liquid level detector, as shown in Figures 1 and 2, includes a liquid level gauge body 1. The liquid level gauge body 1 is equipped with a control block 2, a power supply block 3, an ultrasonic generator block 4, and a signal receiver block 5. The end of the liquid level gauge body 1 is equipped with a probe block 6 that communicates with the ultrasonic generator block 4 and the signal receiver block 5. The user holds the probe block 6 close to the side of the large liquid storage tank by hand, controls the control block 2 to output commands, uses the ultrasonic generator block 4 to emit ultrasonic waves, and the signal receiver block 5 to collect and analyze the reflected ultrasonic waves to determine and obtain the liquid level position information inside the tank.

[0012] Because existing detectors are prone to deviations in the acquired ultrasonic information due to horizontal positional errors, the level gauge body 1 is equipped with a horizontal calibration component. This component includes detection plates 7 on both sides of the probe block 6 in the vertical direction, a pressure sensing kit that cooperates with the detection plates 7 inside the level gauge body 1, and a pressure sensing feedback component. By utilizing the operation of the horizontal calibration component, timely action correction is achieved during the actual detection process to ensure the horizontal accuracy of the detection process and the accuracy and reliability of the final measurement results.

[0013] The pressure sensing kit includes a pressure sensing chamber 8 located within the liquid level gauge body 1 and a pressure sensing block 9 located within the pressure sensing chamber 8. A detection plate 7 is slidably connected to the pressure sensing chamber 8. A telescopic sensing spring 10 is provided between the end of the detection plate 7 extending into the pressure sensing chamber 8 and the pressure sensing block 9. When the operator places the detector against the side of the tank, the detection plate 7 is compressed, causing it to slide into the pressure sensing chamber 8. At the same time, the telescopic sensing spring 10 is squeezed, creating pressure on the pressure sensing block 9. The pressure sensing block 9 converts the pressure generated by the detection plate 7 on the opposite side into electrical signal parameters and transmits them to the control block 2. The control block 2 determines whether the detector maintains a horizontal contact action with the side of the tank being measured based on the pressure data of the vertical detection plate 7 on the opposite side.

[0014] To improve the accuracy and reliability of the deformation feedback process of the telescopic sensing spring 10, one end of the telescopic sensing spring 10 is sleeved with the detection pressure plate 7. The end of the detection pressure plate 7 is provided with a limiting block 13 for the telescopic sensing spring 10 to be sleeved, ensuring smooth force transmission between the detection pressure plate 7 and the telescopic sensing spring 10 under pressure, reducing the phenomenon of unstable deformation of the telescopic sensing spring 10 under force. In addition, there are multiple telescopic sensing springs 10, and the end of each telescopic sensing spring 10 near the pressure sensing block 9 is provided with an auxiliary pressure plate block 14. The auxiliary pressure plate block 14 is provided with multiple spring insertion holes 15. The telescopic sensing spring 10 is stably inserted into the spring insertion hole 15 at one end of the detection pressure plate 7. The auxiliary pressure plate block 14 and the pressure sensing block 9 are pressed together, forming a stable transmission of the received pressure to the pressure sensing block 9 for electrical signal conversion, ensuring the reliability and accuracy of real-time force feedback data.

[0015] The pressure sensing feedback component includes a vibration generating block 11 located inside the level gauge body 1 at the end furthest from the probe block 6, and a warning light block 12 mounted on the level gauge body 1. The pressure sensing feedback component is controlled by a control block 2. When the control block 2 receives a partial signal indicating an excessive pressure deviation between the two detection plates 7, it outputs an electrical signal to control the vibration generating block 11 to vibrate, alerting the operator holding the detector to correct their actions promptly. Simultaneously, the warning light block 12 provides signal feedback, helping the operator obtain real-time detection conditions. Since determining the liquid level position inside the tank requires repeated exploration and vertical movement, the end of the detection plate 7 is equipped with an elastic anti-slip pad 18 to ensure stable contact between the detection plate 7 and the side wall of the tank being tested during vertical sliding adjustment and to enhance wear resistance during the sliding exploration process. Furthermore, to improve the immediacy and accuracy of pressure feedback during the sliding of the detection plate 7 along the side of the tank with the handheld detector, a correction groove 16 is provided at the bottom of the pressure sensing chamber 8. A correction strip 17 is provided on the detection plate 7 to slide and engage with the correction groove 16, improving the consistency of the pressure-bearing movement of the detection plate 7 and reducing pressure feedback deviations caused by possible displacement of the detection plate 7. Simultaneously, a protective sleeve 19 is fitted onto the level gauge body 1 at one end of the probe block 6. When the detector is not in use, the protective sleeve 19 provides protection for the probe block 6 and the detection plate 7, preventing damage to the detection plate 7 and internal pressure sensing components due to improper daily handling and storage, thus ensuring reliable daily use of the detector.

[0016] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An ultrasonic liquid level detector, comprising a liquid level gauge body (1), wherein the liquid level gauge body (1) is provided with a control block (2), a power supply block (3), an ultrasonic generator block (4) and a signal receiving block (5), and the end of the liquid level gauge body (1) is provided with a connection to the ultrasonic generator block (4). The probe block (6) connected to the signal receiving block (5) is characterized by: The level gauge body (1) is also provided with a horizontal calibration component. The horizontal calibration component includes a detection pressure plate (7) on both sides of the probe block (6) in the vertical direction, a pressure sensing kit that cooperates with the detection pressure plate (7) in the level gauge body (1), and a pressure sensing feedback component. The pressure sensing kit includes a pressure sensing cavity (8) in the level gauge body (1) and a pressure sensing block (9) in the pressure sensing cavity (8). The detection pressure plate (7) is slidably connected to the pressure sensing cavity (8). A telescopic sensing spring (10) is provided between the end of the detection pressure plate (7) that extends into the pressure sensing cavity (8) and the pressure sensing block (9). One end of the telescopic sensing spring (10) is sleeved with the detection pressure plate (7). The pressure sensing feedback component includes a vibration generating block (11) in the level gauge body (1) away from the probe block (6) and a warning light block (12) installed on the level gauge body (1). The pressure sensing feedback component is controlled by the control block (2).

2. The ultrasonic liquid level detector according to claim 1, characterized in that: The end of the detection plate (7) is provided with a limiting block (13) for the telescopic sensing spring (10) to be sleeved.

3. The ultrasonic liquid level detector according to claim 1, characterized in that: Multiple telescopic sensing springs (10) are provided. Each of the multiple telescopic sensing springs (10) has an auxiliary pressure plate block (14) at one end near the pressure sensing block (9). The auxiliary pressure plate block (14) has multiple spring holes (15) and abuts against the pressure sensing block (9).

4. The ultrasonic liquid level detector according to claim 1, characterized in that: The bottom of the pressure sensing chamber (8) is provided with a correction groove (16), and the detection pressure plate (7) is provided with a correction strip (17) that slides and inserts into the correction groove (16).

5. An ultrasonic liquid level detector according to claim 1, characterized in that: The end of the detection plate (7) is provided with an elastic anti-slip pad (18).

6. The ultrasonic liquid level detector according to claim 1, characterized in that: A protective sleeve (19) is also fitted on the level gauge body (1) at one end of the probe block (6).

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