Empty container detection device based on sound waves
By using an ultrasonic wave-based detection device, which utilizes an ultrasonic detector generator and an ultrasonic receiver to detect containers, the problems of low efficiency and poor accuracy in empty container detection are solved, enabling rapid and accurate judgment of the empty container status.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2026-03-31
AI Technical Summary
In existing technologies, the efficiency and accuracy of empty container inspection are low, especially for containers with complex internal structures or small amounts of residue, making it difficult to accurately determine their empty status.
An acoustic detection device is used, which uses an ultrasonic detector and a sound wave receiver to detect containers on a conveyor belt. Combined with an electric telescopic pole and a control panel, it enables rapid detection.
It enables quick and accurate determination of whether a container is empty, improving inspection efficiency and work efficiency.
Smart Images

Figure CN224067008U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of container inspection, specifically to an empty container inspection device based on sound waves. Background Technology
[0002] In logistics, transportation, and port warehousing industries, container loading status inspection is a crucial step. Accurately determining whether a container is empty is essential for improving cargo handling efficiency, optimizing warehouse space utilization, and ensuring transportation safety. Common methods for detecting empty containers include manual visual inspection and weight verification. Manual visual inspection is inefficient and easily affected by human factors, making accuracy difficult to guarantee. While weight verification is simple and direct, it may not accurately determine the empty status of containers with complex internal structures or containing small amounts of residue, thus reducing work efficiency. Utility Model Content
[0003] The purpose of this invention is to provide an acoustic-based empty container inspection device to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an acoustic-based empty container inspection device, comprising a base frame, a conveyor belt installed in the middle of the base frame, a base fixedly connected to the bottom of the base frame, a loading platform fixedly installed on one side of the base frame, a unloading platform fixedly installed on the other side of the base frame, an inspection frame fixedly connected to one side of the top of the base frame, an electric telescopic rod fixedly installed on the top of the inspection frame, a lifting seat fixedly connected to the output end of the electric telescopic rod, a mounting base installed at the bottom of the lifting base, an ultrasonic detector generator installed at the bottom of the mounting base, an acoustic receiver installed on one side of the mounting base, and a control panel fixedly installed on the front of the inspection frame.
[0005] Preferably, the electric telescopic pole, ultrasonic detector generator, and sound wave receiver are all electrically connected to an external power supply via a control panel.
[0006] Preferably, a housing is fixedly installed on one side of the front of the base frame, and a drive motor is fixedly installed inside the housing. The output end of the drive motor is connected to a rotating shaft, and the rotating shaft is connected to a transmission roller on the conveyor belt.
[0007] Preferably, the ultrasonic detector and the acoustic receiver are both positioned above the conveyor belt.
[0008] Preferably, guide sliders are fixedly connected to both sides of the lifting seat, and the inner wall of the detection frame is provided with guide grooves corresponding to the guide sliders, and the guide sliders are slidably connected to the guide grooves.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] The container to be inspected is pushed onto the conveyor belt via the loading platform. The conveyor belt transports the container to one side of the unloading platform. As the container passes under the inspection frame, it is detected by ultrasonic detectors and receivers to determine if it is empty. The empty container can then be removed by personnel. After inspection, the container is lowered and discharged via the unloading platform. The entire empty container inspection device utilizes the rapid propagation and reflection characteristics of sound waves within the container to complete the inspection of the empty container status in a short time, improving inspection efficiency and work efficiency. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a diagram of the bottom connection structure of the lifting seat of this utility model;
[0013] Figure 3 This is a diagram showing the internal structure of the housing of this utility model;
[0014] Figure 4 This is a structural diagram showing the connection between the detection frame and the lifting seat of this utility model.
[0015] In the diagram: 1. Base frame; 2. Base; 3. Conveyor belt; 4. Loading platform; 5. Unloading platform; 6. Machine box; 7. Detection frame; 8. Control panel; 9. Electric telescopic rod; 10. Lifting seat; 11. Mounting seat; 12. Ultrasonic detector generator; 13. Sound wave receiver; 14. Drive motor; 15. Rotating shaft; 16. Guide groove; 17. Guide slider. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1-4This utility model provides an empty container inspection device based on sound waves, including a base frame 1, a conveyor belt 3 installed in the middle of the base frame 1, a base 2 fixedly connected to the bottom of the base frame 1, a loading platform 4 fixedly installed on one side of the base frame 1, a unloading platform 5 fixedly installed on the other side of the base frame 1, an inspection frame 7 fixedly connected to one side of the top of the base frame 1, an electric telescopic rod 9 fixedly installed on the top of the inspection frame 7, a lifting seat 10 fixedly connected to the output end of the electric telescopic rod 9, an installation seat 11 installed at the bottom of the lifting seat 10, an ultrasonic detector generator 12 installed at the bottom of the installation seat 11, a sound wave receiver 13 installed on one side of the installation seat 11, and a control panel 8 fixedly installed on the front of the inspection frame 7.
[0018] In this embodiment, when the container passes under the detection frame 7, the ultrasonic detector 12 and the sound wave receiver 13 can perform sound wave detection on the container to detect whether the container is empty, thus improving work efficiency.
[0019] See Figure 1-4 The electric telescopic rod 9, ultrasonic detector 12, and sound wave receiver 13 are all electrically connected to an external power supply via the control panel 8. A housing 6 is fixedly installed on one side of the front of the base frame 1. A drive motor 14 is fixedly installed inside the housing 6. The output end of the drive motor 14 is connected to a rotating shaft 15. The rotating shaft 15 is connected to the transmission roller on the conveyor belt 3. The ultrasonic detector 12 and the sound wave receiver 13 are both positioned above the conveyor belt 3. Guide sliders 17 are fixedly connected to both sides of the lifting seat 10. The inner wall of the detection frame 7 is provided with guide grooves 16 corresponding to the guide sliders 17. The guide sliders 17 and guide grooves 16 are slidably connected.
[0020] In practical use, this invention, an empty container detection device based on sound waves, involves pushing the container to be detected onto the conveyor belt 3 via the loading platform 4. The drive motor 14 is then started to move the conveyor belt 3, transporting the container to one side of the unloading platform 5. As the container passes under the detection frame 7, the ultrasonic detector 12 and the sound wave receiver 13 can detect whether the container is empty. Personnel can then remove the empty container. After detection, the container is lowered and discharged via the unloading platform 5. The entire empty container detection device utilizes the rapid propagation and reflection characteristics of sound waves within the container to quickly detect the empty status of the container, improving detection efficiency and work efficiency.
[0021] Although the present invention 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 the present invention should be included within the protection scope of the present invention.
Claims
1. A sound wave based empty container detection apparatus comprising a base frame (1), characterized in that: The middle part of the base frame (1) is provided with a conveying belt (3), the bottom of the base frame (1) is fixedly connected with a base (2), one side of the base frame (1) is fixedly provided with a feeding table (4), the other side of the base frame (1) is fixedly provided with a discharging table (5), one side of the top of the base frame (1) is fixedly connected with a detection frame (7), the top of the detection frame (7) is fixedly provided with an electric telescopic rod (9), the output end of the electric telescopic rod (9) is fixedly connected with a lifting seat (10), the bottom of the lifting seat (10) is provided with a mounting seat (11), the bottom of the mounting seat (11) is provided with an ultrasonic detection generator (12), one side of the mounting seat (11) is provided with a sound wave receiver (13), and the front of the detection frame (7) is fixedly provided with a control panel (8).
2. The detection device of claim 1, wherein: The electric telescopic rod (9), the ultrasonic detection generator (12) and the sound wave receiver (13) are electrically connected with the external power supply through the control panel (8).
3. The detection device of claim 1, wherein: One side of the front of the base frame (1) is fixedly provided with a machine box (6), the inside of the machine box (6) is fixedly provided with a driving motor (14), the output end of the driving motor (14) is connected with a rotating shaft (15), and the rotating shaft (15) is connected with a transmission roller on the conveying belt (3).
4. The detection device of claim 1, wherein: The ultrasonic detection generator (12) and the sound wave receiver (13) correspond to the upper side of the conveying belt (3).
5. The detection device of claim 1, wherein: Both sides of the lifting seat (10) are fixedly connected with guide sliding blocks (17), the inner wall of the detection frame (7) is provided with guide grooves (16) corresponding to the guide sliding blocks (17), and the guide sliding blocks (17) are slidably connected with the guide grooves (16). Both sides of the lifting seat (10) are fixedly connected with guide sliding blocks (17), the inner wall of the detection frame (7) is provided with guide grooves (16) corresponding to the guide sliding blocks (17), and the guide sliding blocks (17) are slidably connected with the guide grooves (16).