Locking and shielding in the weighing display of the weighbridge means that the display is equipped with a data transmission encryption module, which can transmit and encrypt the data generated in the weighing process to ensure the security of data transmission. The lock icon indicates that the security of data transmission is locked and cannot be interfered or hijacked by the outside world, thus ensuring the authenticity and integrity of data; The icon of the shield indicates that the security of data transmission has been protected from the threat of hacking or cracking, thus ensuring the confidentiality of data. The appearance of these two symbols shows that the weighbridge weighing system adopts advanced and safe data transmission encryption technology, which is helpful to ensure the accuracy and safety of weighing data.