T/ZJGS 21-2023 Stacked leaf lock - Part 1: Tumbler structure

Scope

Main Technical Content: 4.1 Flexibility 4.1.1 Lock Opening Operation 4.1.1.1 When tested according to 5.2.1, the lock beam should be able to open. 4.1.1.2 When tested according to 5.2.1, the torque should not exceed 1 N·m. 4.1.2 Key Insertion and Removal Force The key insertion and removal force should not exceed 12 N. 4.1.3 Lock Beam Closing Force The lock beam closing force should not exceed 90 N. 4.2 Corrosion Resistance After the 96-hour corrosion resistance test, the torque applied to the key should not exceed 2.5 N·m, and the padlock should be able to open. 4.3 Security Performance 4.3.1 Effective Notch Count 4.3.1.1 The minimum effective notch count n of the padlock should comply with Table 2. 4.3.1.2 The same grade difference notches should account for no more than 60% of the total notch count of a single key; each key should have at least three adjacent notches of the same grade difference. 4.3.2 Key Interchangeability When tested according to 5.4.2, the padlock should not be able to open with a key that differs from the correct key by only one grade difference at the torque M1 specified in Table 2. The closest key should be defined by the manufacturer based on the notch coding system. 4.3.3 Lock Cylinder Tensile Strength When tested according to 5.4.3, the lock cylinder should withstand the tensile force F1 specified in Table 2 without separating from the lock body. 4.3.4 Lock Beam Tensile Strength When tested according to 5.4.4, the lock beam should withstand the tensile force F2 specified in Table 2 without the lock being opened. 4.3.5 Lock Beam Torsion When tested according to 5.4.5, the lock beam should withstand the torsion moment M2 specified in Table 2 without the lock being opened. 4.3.6 Lock Beam Anti-Shear When tested according to 5.4.6, the lock beam should withstand the shear force F3 specified in Table 2 without being cut. 4.3.7 Low-temperature Impact Resistance of Lock Body and Lock Beam W

Development Information

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