Novel anti-theft lock and key matched with same

Abstract

The invention discloses a novel anti-theft lock and a key matched with the same. The novel anti-theft lock comprises a lock shell, a lock container and a key body, a key hole is formed in the lock container, a positioning ejection bead hole and a special-shaped cavity are formed in the lock container, a special-shaped bead is arranged in the special-shaped cavity, the special-shaped bead is provided with a first special-shaped part and a second special-shaped part, a first through hole is formed in the end of the second special-shaped part in a penetrating mode, a first movable column is movably arranged in the first through hole, a flat bead hole is formed in the lock shell, a flat bead and a first spring are arranged in the flat bead hole, a second through hole is formed in the end of the flat bead in a penetrating mode, a second movable column and a second spring are movably arranged in the second through hole, a positioning ejection bead and a third spring are arranged in the positioning ejection bead hole, a third through hole is formed in the key body, and a movable piece is arranged in the third through hole. According to the novel anti-theft lock and the key matched with the same, the movable piece on the key body is matched with the special-shaped bead, and meanwhile, the teeth on the key body are matched with the first movable column, so that a second movable column can be jacked up for unlocking, and therefore, the novel anti-theft lock is high in safety coefficient, and technical opening can be more effectively prevented.

Description

【Technical field】 [0001] The invention relates to locks, in particular to a new type of anti-theft lock and its matching key. 【Background technique】 [0002] At present, the Chinese patent discloses (publication number CN201920266023.5) a floating ball anti-theft lock and its matching key, and specifically discloses the following content: when the key body is inserted into the key hole, the floating ball hole is just in line with When the first special-shaped bead hole and the positioning top bead hole are aligned, because the elastic force of the second spring is greater than that of the first spring, the second spring acts on the positioning top bead to push against the floating bead, and the special-shaped bead will be lifted during the movement of the floating bead The first special-shaped part makes the second special-shaped part prop up the flat bead to realize unlocking. When the key body is pulled out, the first spring-action flat bead pushes against the second speci...

AI Technical Summary

Problems solved by technology

[0004] It can be seen from the technical features disclosed above that this technical solution has the following defects: 1. As long as the floating ball on the key body can be adapted to the special-shaped bead when it is inserted, the special-shaped bead can lift the flat bead to realize unlocking. The safety factor of the anti-theft lock is not high, and the effect of preventing technical opening is not very good; 2. The floating ball is clamped in the floating bead hole by the upper and lower annular card edges on the key. It is difficult to process the upper ring card edge and the lower ring card edge, and the floating ball on the key will move up and down during use, which makes the floating ball easy to wear with the edge of the upper ring card edge or the edge of the lower ring card edge; And the present invention improves based on above-mentioned defect

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