Ultrasonic oil drum level detection device

Abstract

The utility model discloses an ultrasonic oil drum liquid level detection equipment, ultrasonic oil drum liquid level detection equipment includes the shell, and the shell has the cavity in it, is equipped with battery support in the shell, and the left side of battery support is equipped with battery, battery spring piece double pole piece, battery spring piece anode, battery spring piece cathode, battery cover plate, and the right side of battery support is equipped with the circuit board with control unit, and the lower extreme of battery support is equipped with ultrasonic sensor, and ultrasonic sensor installs on aluminium alloy base and is fixed in the shell through aluminium alloy base, and control unit is electrically connected with ultrasonic sensor, and battery is the power supply of control unit and ultrasonic sensor. Compared with prior art, the utility model is equipped with battery group and control unit in fixed support, and ultrasonic sensor is equipped under fixed support, is adapted to different specifications oil drum and prevents filter liquid level fluctuation interference, and has battery voltage monitoring and low pressure alarm, simple structure, and installation is flexible, is applicable to a variety of oil drum types.

Description

Technical Field

[0001] This utility model relates to a detection device, and more particularly to a liquid level detection device. Background Technology

[0002] Oil drum level detection has important applications in the petrochemical, warehousing, and logistics industries. Traditional detection methods, including manual gauging, float sensors, and radar sensors, all have certain limitations. In recent years, non-contact ultrasonic detection equipment has been gradually adopted due to its advantages of simple installation and non-contact with oil, but it still suffers from low accuracy, poor adaptability, and inability to remotely monitor. Existing float-type contact sensors trigger signals by the rise and fall of a float with the liquid level, which is easily affected by the viscosity of the oil, leading to jamming and low accuracy; while non-contact radar sensors use electromagnetic waves to detect liquid levels, which are costly and poorly adaptable to foam and liquid level fluctuations; ultrasonic sensors are mostly fixed installations, lack temperature compensation and IoT connectivity, and cannot achieve remote monitoring and early warning. In summary, traditional oil drum level detection relies on manual measuring rulers or contact sensors, which suffers from large errors, low efficiency, and easy contamination of oil. Existing ultrasonic sensors are mostly designed for fixed oil drums and are difficult to adapt to different sizes of oil drums. They have poor anti-interference ability for liquid level fluctuations and foamy oil surfaces, and lack remote real-time monitoring capabilities. Ultimately, the evaporation of oil and temperature changes cause fluctuations in sound velocity, affecting measurement accuracy. Utility Model Content

[0003] The purpose of this invention is to provide an ultrasonic oil drum level detection device. The technical problem to be solved is to improve the safety of the detection and adapt to oil drums of different specifications.

[0004] This utility model adopts the following technical solution: an ultrasonic oil drum level detection device, the ultrasonic oil drum level detection device includes a shell, the shell has a cavity, a battery bracket is provided in the shell, the left side of the battery bracket is provided with a battery, a battery spring bipolar plate, a battery spring positive electrode, a battery spring negative electrode, and a battery cover plate, the right side of the battery bracket is provided with a circuit board with a control unit, the lower end of the battery bracket is provided with an ultrasonic sensor, the ultrasonic sensor is mounted on an aluminum alloy base and fixed in the shell by the aluminum alloy base, the control unit is electrically connected to the ultrasonic sensor, and the battery powers the control unit and the ultrasonic sensor.

[0005] Furthermore, the battery holder has two vertically arranged semi-circular components connected to a vertically arranged straight plate. The two semi-circular components are arranged opposite to each other on the straight plate, forming a cylindrical space. The straight plate divides the cylindrical space into two semi-cylindrical spaces. A battery slot is provided in one of the semi-cylindrical spaces on one side of the straight plate. The battery slot contains a battery spring bipolar plate, a battery spring positive electrode, and a battery spring negative electrode. A battery cover is provided on the battery slot. The battery is placed in the battery slot and makes electrical contact with the battery spring bipolar plate, the battery spring positive electrode, and the battery spring negative electrode. The circuit board is provided in the other semi-cylindrical space on the other side of the straight plate.

[0006] Furthermore, one of the semi-circular components is located at the end of the straight plate opposite to the ultrasonic sensor, and the ultrasonic sensor is opposite to the semi-circular component.

[0007] Furthermore, another semi-circular component is a semi-circular ring that spans the outside of the circuit board.

[0008] Furthermore, the outer casing is cylindrical and made of aluminum, with the battery holder, along with the circuit board containing the control unit and the battery, housed within the cylinder.

[0009] Furthermore, the dimensions of the outer shell are Φ60mm × 86.85mm.

[0010] Furthermore, the ultrasonic sensor and control unit achieve bidirectional communication via a universal asynchronous transceiver (UART).

[0011] Furthermore, the control unit communicates with the cloud server via Message Queuing Telemetry Transmission (MQTT), and the cloud server communicates with the user's APP via MQTT.

[0012] Furthermore, the control unit is equipped with a temperature acquisition unit.

[0013] Furthermore, the control unit is equipped with a low-power module.

[0014] Compared with the prior art, this utility model has a battery pack and control unit inside the fixed bracket, and an ultrasonic sensor under the fixed bracket. It is compatible with oil drums of different specifications and prevents interference from fluctuations in the filtered liquid level. It also has battery voltage monitoring and low-pressure alarm functions. The structure is simple, the installation is flexible, and it is suitable for various types of oil drums. Attached Figure Description

[0015] Figure 1 This is the circuit block diagram of this utility model.

[0016] Figure 2 This is a schematic diagram of the working process of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of this utility model.

[0018] Figure 4 This is the front view of this utility model.

[0019] Figure 5 yes Figure 4 Front view.

[0020] Figure 6 yes Figure 4 Rear view.

[0021] Figure 7 yes Figure 6 A schematic diagram showing the battery cover after it is installed.

[0022] Figure 8 This is a perspective view (one) of this utility model.

[0023] Figure 9 This is a perspective view (II) of this utility model. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0025] like Figures 3 to 8 As shown, the ultrasonic oil drum liquid level detection device (equipment) of this utility model includes:

[0026] The outer shell 10 of the cylinder has a cavity inside and through holes at both ends;

[0027] The battery holder 8 is disposed within the housing 10. The battery holder 8 includes a straight plate with two vertically arranged semi-circular components positioned opposite each other. One semi-circular component is plate-shaped and positioned at one end of one side of the straight plate. The other semi-circular component is a semi-circular ring, which can be positioned at any position on the other side of the straight plate. The two semi-circular components form a cylindrical space, and the straight plate divides the cylindrical space into two semi-cylindrical spaces. The semi-cylindrical space with the plate-shaped semi-circular component... A battery slot is provided on one side of the straight plate, and a battery spring bipolar plate 9, a battery spring positive electrode 3, and a battery spring negative electrode 4 are embedded in the battery slot. A battery 7 is also provided in the battery slot. The battery 7 is electrically contacted and connected to the battery spring bipolar plate 9, the battery spring positive electrode 3, and the battery spring negative electrode 4. A battery cover plate 6 is provided on the battery slot and is snapped to the battery slot by a snap-fit ​​method. A circuit board with a control unit 8 is provided in the semi-cylindrical space of the semi-circular part being a semi-circular ring on the other side of the straight plate.

[0028] An ultrasonic sensor 2 is located at the lower end of the plate-shaped semi-circular part of the battery bracket 5. The ultrasonic sensor 2 is mounted on the aluminum alloy base 1, and the aluminum alloy base 1 is interference-fitted with the through hole at this end of the outer casing 10.

[0029] The control unit 8 is electrically connected to the ultrasonic sensor 4 via a wire, and the battery 7 powers the control unit 8 and the ultrasonic sensor 2.

[0030] The outer casing 10 is made of aluminum alloy, with external threads on both its upper and lower outer walls. The ultrasonic sensor 2 is fixed to one end of the outer casing 10 via a circular aluminum alloy base 1, extending beyond the casing 10. The other end of the casing 10 has an outer cover 11 with internal threads, which are threaded together to secure the outer cover 11 to the external threads on the casing 10. The casing is compact, small in size, and easy to install inside different types of oil drums. In this embodiment, the external dimensions of the outer casing 10 are Φ60mm × 86.85mm.

[0031] like Figure 1 As shown, the ultrasonic sensor 2 and the control unit 8 achieve bidirectional communication through a universal asynchronous transceiver (UART, serial communication protocol).

[0032] The control unit 8 communicates with the cloud server and the cloud server communicates with the detector's APP (user APP) using Message Queue Telemetry Transmission (MQTT).

[0033] The ultrasonic sensor 2 includes a probe, a microcontroller (MCU) unit, a communication unit, a signal processing unit, and a transmitter / receiver unit. In this embodiment, the ultrasonic sensor 2 uses an existing ultrasonic sensor technology.

[0034] The control unit 8 includes a core control MCU, a distribution network module, a communication unit, a temperature acquisition unit (temperature control), a WIFI module, a low-power processing system (low-power module), and a status display unit. In this embodiment, the core control MCU, distribution network module, communication unit, temperature acquisition unit (temperature sensor), WIFI module, low-power processing system, and status display unit all adopt existing technologies.

[0035] The ultrasonic sensor and control unit constitute the device end. The ultrasonic sensor and temperature sensor are located at the device end.

[0036] The power supply system uses battery 7.

[0037] The working process of this utility model is as follows: Ultrasonic sensor 2 periodically collects the liquid level in the oil tank, the equipment temperature, and the battery charge. The ultrasonic sensor emits sound waves and receives the echoes, calculating the liquid level based on the time difference. The data is then sent to the control unit via UART, where the control unit performs temperature compensation to ensure accurate sound velocity. The data is then reported to the cloud server according to the MQTT protocol. The data is also uploaded to the cloud server via a WiFi communication module, enabling remote monitoring. After data reporting is complete, the device enters a low-power mode. The cloud server receives the data reported by the device, stores it, analyzes it, and performs anomaly detection, supporting historical data queries and alarm push notifications.

[0038] The mobile client communicates with the cloud server via the MQTT protocol to view real-time data on liquid level, temperature, and power, receive alarm information, and remotely configure equipment parameters.

[0039] This invention integrates an ultrasonic sensor and a temperature sensor at the device end, making it suitable for oil drums of various sizes. It provides non-contact measurement, avoiding oil contamination, offering convenience, flexibility, and improved testing safety. Automatic temperature compensation from the temperature sensor enhances measurement accuracy. A low-power control circuit and a timed reporting mechanism extend battery life. An IoT communication architecture based on the MQTT protocol supports remote monitoring and alarms. It adapts to different oil drum sizes and prevents interference from liquid level fluctuations, while also providing battery voltage monitoring and low-pressure alarms. The device has a simple structure, flexible installation, and is suitable for various oil drum types.

[0040] To address the shortcomings of existing technologies, such as lack of remote real-time monitoring and anomaly early warning functions, inability to adapt to different specifications of oil drums, inability to effectively filter liquid level fluctuations and foam interference, lack of temperature compensation mechanism, and significant impact of environmental influence on measurement accuracy, this utility model features non-contact ultrasonic measurement, automatic temperature compensation, IoT remote data transmission, and anomaly alarm functions, and can be adapted to different specifications of oil drums.

Claims

1. An ultrasonic oil drum liquid level detection device, characterized in that: The ultrasonic oil drum level detection device includes a housing (10), which has a cavity. A battery bracket (5) is provided in the housing (10). A battery (7), a battery spring bipolar plate (9), a battery spring positive electrode (3), a battery spring negative electrode (4), and a battery cover plate (6) are provided on the left side of the battery bracket (5). A circuit board with a control unit (8) is provided on the right side of the battery bracket (5). An ultrasonic sensor (2) is provided at the lower end of the battery bracket (5). The ultrasonic sensor (2) is mounted on an aluminum alloy base (1) and fixed in the housing (10) through the aluminum alloy base (1). The control unit (8) is electrically connected to the ultrasonic sensor (2). The battery (7) supplies power to the control unit (8) and the ultrasonic sensor (2).

2. The ultrasonic oil drum level detection device according to claim 1, characterized in that: The battery bracket (5) has two semi-circular parts arranged vertically. The two semi-circular parts are connected to a vertically arranged straight plate. The two semi-circular parts are arranged opposite to each other on the straight plate. The two semi-circular parts form a cylindrical space. The straight plate divides the cylindrical space into two semi-cylindrical spaces. A battery slot is provided in one of the semi-cylindrical spaces and on one side of the straight plate. The battery slot is embedded with a battery spring bipolar plate (9), a battery spring positive electrode (3), and a battery spring negative electrode (4). A battery cover plate (6) is set on the battery slot. The battery (7) is set in the battery slot and is in electrical contact with the battery spring bipolar plate (9), the battery spring positive electrode (3), and the battery spring negative electrode (4). The circuit board is set in the other semi-cylindrical space and on the other side of the straight plate.

3. The ultrasonic oil drum level detection device according to claim 2, characterized in that: One of the semi-circular parts is located at the end of the straight plate opposite to the ultrasonic sensor (2), and the ultrasonic sensor (2) is opposite to the semi-circular part.

4. The ultrasonic oil drum level detection device according to claim 3, characterized in that: The other semi-circular component is a semi-circular ring that spans the outside of the circuit board.

5. The ultrasonic oil drum level detection device according to claim 4, characterized in that: The outer casing (10) is a cylinder made of aluminum, and the battery holder (5), together with the circuit board containing the control unit (8) and the battery (7) inside the cylinder, are arranged inside the cylinder.

6. The ultrasonic oil drum level detection device according to claim 5, characterized in that: The dimensions of the outer shell (10) are Φ60mm×86.85mm.

7. The ultrasonic oil drum level detection device according to claim 1, characterized in that: The ultrasonic sensor (2) and the control unit (8) communicate bidirectionally via a universal asynchronous transceiver (UART).

8. The ultrasonic oil drum level detection device according to claim 7, characterized in that: The control unit (8) communicates with the cloud server via Message Queue Telemetry Transmission (MQTT), and the cloud server communicates with the user APP via Message Queue Telemetry Transmission (MQTT).

9. The ultrasonic oil drum level detection device according to claim 8, characterized in that: The control unit (8) is equipped with a temperature acquisition unit.

10. The ultrasonic oil drum level detection device according to claim 9, characterized in that: The control unit (8) is equipped with a low-power module.

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