A new type of springless blade lock
The springless blade lock, commonly known as "Fulai lock", is a relatively safe lock composed of multiple sets of blades with different angle notches, lock core, middle sleeve, locking column and outer casing. Its performance indicators are better than the eccentric lock and cross key lock of the commonly used upper and lower marble structure. Its characteristics: angle key configuration angle blade, 8 sets of blades, 7 angle difference pieces, it is difficult to find the feeling when using technology to open. In addition, it is small in size and can meet various special structural installation requirements. In the automotive field, such as "Mondeo", safe areas such as "Jiebao King" and various high-end padlocks are widely used.
Due to the wide popularity of the lock, for the needs of after-sales service, technicians who have unlocked at home and abroad have designed a tool that can adjust the angle of the corresponding blade gap after many years of research. As a result, the average freehand can be turned on within one minute. In addition, due to insufficient locking of the original design locking column, excessive keyhole, and reduced processing accuracy of the production enterprise, the lock is difficult to avoid the fate of being forced to open.
In response to the above problems, the company has designed a "safety-free blade lock" that can effectively prevent the technology from being opened and prevent the forced violence from being opened without increasing the production cost.
The specific measures are as follows:
1. The front end is equipped with a new anti-drilling piece. The anti-drilling piece is provided with a boss to prevent the tool from entering the lock cylinder.
Because the tool is made of 6-8 sets of extraction teeth, concentric tubes, and adjustment discs. The boss on the drill-proof piece can effectively block the entry of the tool. If it can enter the lock cylinder, it can also restrict it from rotating at will to change the angle of the tooth.
2. Reasonably increase the locking amount. The original locking column has a diameter of 2 mm, the theoretical locking amount is 1 mm, and now increases to a diameter of 2.5 mm to 3 mm, and the theoretical locking amount is 1.25 mm to 1.5 mm.
three. The middle sleeve is omitted, and the middle sleeve is originally punched in the outer casing; now the internal pressure nut is used to fix the lock cylinder, and the locking groove is directly processed on the outer casing. This not only enhances the impact strength, but also significantly increases the fit accuracy.
four. The groove in the key is matched with the boss in the anti-drilling piece, which has the function of improving the key insertion and extraction, increasing the difficulty of copying the key, reducing the space for the foreign matter to enter the lock core, and weakening the torsion force for forcibly opening.
Fives. An anti-drill block is added to the inner end of the lock cylinder, and the rear end of the lock core is fixed by the outer nut, and the floating anti-drill block can not be destroyed by the alloy drill bit. If there is any eventuality, the outer nut structure can still ensure that the picks are not drilled off.
The company's new high-level "springless blade lock", patent number: ZL03231948.7. At present, the lock batch is matched in many safe and cabinet manufacturers in the country, which has replaced the eccentric lock and the cross key lock of the commonly used upper and lower marble structure, and has achieved certain social benefits.
(Ningbo Zhenhai Shenzhou Lock Industry Co., Ltd. Wu Qiliang)
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