Security antitheft lock and unlocking and locking method

Abstract

The invention discloses a security antitheft lock. The security antitheft lock comprises a shell, an arc-shaped lock bar, a blocking piece and a thumb wheel, wherein a locking boss of the blocking piece is clamped in a locking opening of the lock bar to realize locking; a driving lever arranged on the thumb wheel pushes the blocking piece to deflect around a shaft to realize unlocking; a security stopping block is arranged on one side of the thumb wheel; one end of the security stopping block is pivotally connected to the shell; a lug is arranged above an extension section of the security stopping block; a stopping block step surface is formed between the lug and the extension section; a thumb wheel step surface is formed on the thumb wheel; in a locking state, the bottom surface of the extension section of the security stopping block is positioned on the lower plane of the thumb wheel; and the tail end, which is away from the shaft, of the blocking piece is positioned above the extension section and is limited by the stopping block step surface. The tail end of the blocking piece is limited during locking, so that the lock is prevented from being unlocked mistakenly when subjected to impact vibration; and before unlocking, the thumb wheel pushes the security stopping block away and then pushes the blocking piece to unlock the lock, and therefore, security is relieved automatically. The security antitheft lock is exquisite in structure and reasonable in action; and security antitheft property and usability of the lock are improved effectively.

Description

technical field [0001] The invention relates to the field of vehicle locks, in particular to a safe and anti-theft car lock and an opening and closing method. Background technique [0002] The locks of vehicles such as bicycles and motorcycles need to have the characteristics of safety and anti-theft. The Chinese patent 2016100268014 applied by the applicant discloses a hand-closed and electrically-opened lock rim-shaped bicycle lock, which uses a motor to drive an eccentric lever to make an arc-shaped trajectory movement, and the deflection movement of the toggle plate, and the locking boss is released from the lock The locking port of the rod can be quickly and automatically unlocked under the action of elastic force. However, in actual use, because the retainer still has a certain degree of freedom under the action of elastic pressure, if it is subjected to vibrations such as knocking and impact in the locked state, the deflection of the retainer will cause the locking b...

AI Technical Summary

Problems solved by technology

However, in actual use, since the baffle still has a certain degree of freedom under the action of elastic pressure, if it is subjected to vibrations such as knocking and impact in the locked state, the baffle will deflect and cause the locking boss to break away from the locking lever. Opening the door will also cause unlocking, so it cannot meet the requirements of security and anti-theft

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