Non-contact type empty box detection mechanism

Abstract

The invention relates to a non-contact type empty box detection mechanism. The non-contact type empty box detection mechanism comprises a detection box, a detector and a sound wave transmitter, wherein the detector is fixed to the detection box, and the detection box is provided with a storing groove; the sound wave transmitter is hung in the storing groove of the detection box through a flexiblebelt, and the lower end of the sound wave transmitter is centered in the detection box through a non-contact type magnetic centering structure. The detector and the sound wave transmitter are still arranged on the detection box and move synchronously, but the sound wave transmitter is hung in the storing groove of the detection box through the flexible belt and isolated from the detector in a flexible hanging mode, so that shock absorption is realized to the maximum extent, vibration interference on the detector is greatly reduced, and the misjudgment rate can be reduced; in order to reduce the swing of the lower end of the sound wave transmitter in the movement and detection processes, a non-contact magnetic force centering structure is specially designed, so that continuous stabilizing force can be provided for the lower end of the sound wave transmitter, the centering and damping effects are achieved, and the stability of the sound wave transmitter is improved.

Description

technical field [0001] The invention relates to the technical field of empty container detection, in particular to a non-contact empty container detection mechanism. Background technique [0002] When a vehicle carrying a container enters or leaves the port, real-time inspection will be carried out as needed. In the past, manual inspection was mainly used. Inspectors need to open the container door to check, and sometimes climb into the container for on-the-spot inspection, which not only consumes a lot of human resources, The efficiency is still low, the labor intensity is high, there are hidden dangers of unsafety when getting on and off the bus frequently, and it is even more difficult to handle in bad weather. It not only takes up a lot of site resources, but also causes the problem of slow customs clearance. In order to solve these problems, someone invented the use of sound waves for empty container detection. There are mainly two methods: contact type and non-contact ...

AI Technical Summary

Problems solved by technology

When the detected vehicle starts suddenly without following the command, it will damage the contact empty box detection equipment, which has obvious disadvantages, so people prefer to use non-contact empty box detection equipment, but the existing non-contact empty box detection equipment Both the acoustic wave transmitter and detector are set in the detection box and move synchronously. Since the acoustic wave transmitter vibrates greatly during operation, it will affect the detection results of the detector. The false positive rate cannot be further reduced and needs to be improved.

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