a seal lock

Abstract

The invention relates to a novel imprinting lock which comprises a key, a lock shell, a number dial, an upper lock bead, a lower lock bead, a compressed spring, a plug column and a lock shell. A key groove is formed in the number dial, and the key groove face and the key end face are oppositely provided with a convex portion and a concave portion which are mutually matched. A through hole or a gap is formed in the end face of the number dial, the upper lock bead is arranged in the through hole or the gap, the compressed spring and the lower lock bead are arranged in the lock shell, the lower lock bead stretches into the through hole or the gap of the number dial and abuts against the upper lock bead under the action of the compressed spring, and the lower lock bead stops the number dial from rotating. When the key is inserted, if the concave portion in the key end face and the convex portion of the key groove are same in shape, and the inserting portion is correct, the key can be stretched in continuously and ejects the lower lock bead out, and successful unlocking is achieved; if the inserting portion is wrong, the key can just idle. The novel imprinting lock is high in unlocking capacity, the lock core can be protected against violence damage, the production process is simple, the cost is low, the mutual opening rate is low, and individuation making can be achieved.

Description

technical field [0001] The invention relates to an anti-theft lock, which is different from common blade locks and tumbler locks on the market, and is a imprint lock with a new structure. Background technique [0002] Existing mechanical anti-theft locks can be divided into tumbler locks, blade locks, and magnetic locks according to the different lock core principles. [0003] The tumbler lock is the most common lock structure. The principle is that there are several holes radially distributed on the surface of the cylindrical lock core of the marble structure, which correspond to the holes on the lock body and ensure the necessary concentricity. These holes are filled with upper and lower rows of cylindrical pins, that is, upper pins and lower pins. In general, the upper pin in the lock body hole is inserted into the lock cylinder hole, or the lower pin in the lock core is inserted into the lock body hole, so that the lock core cannot be rotated arbitrarily. After the ke...

AI Technical Summary

Problems solved by technology

The anti-theft ability of the anti-theft lock mainly lies in the structure of the lock cylinder. The more complex the structure, the better the ability to prevent technical opening, but the corresponding cost will also increase.

Therefore, the more expensive the anti-theft lock, the better the anti-theft ability, but it is precisely the expensive price that prevents the user's desire to buy, and the price of hundreds or even thousands is often not considered by the user.

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