Helical gear and rack type directional password theft-proofing ring lock

Abstract

The invention provides a helical gear and rack type directional password theft-proofing ring lock. According to the design, the helical gear and rack type directional password theft-proofing ring lock is equipped with a ring; one end of a spring is firmly welded in 90 degrees to the frame, and while the other end of the ring is welded with a fixing block; the frame is connected with a side lock block; a long groove is formed in the combined surface between the side lock block and the frame; a quadrate through hole is formed in the fixing block; the long lock block is inserted into the quadrate through hole in the fixing block and the long groove in the side lock block; an upper fixing block, a lower fixing block and an internal embedded block are positioned in the frame; a plurality of through holes are formed in the upper fixing block; a plurality of rotatable helical gears are mounted on the internal embedded block and corresponding to helical racks in directions; the helical gears rotate leftwards and rightwards; the helical gears rotate leftwards and rightwards; a group of numbers without order is etched on another half circumferential surface without teeth, of each helical gear; scale marks are arranged on interval planes of the through holes in the upper fixing block; the helical racks extend about 3mm in a flat blind hole. The helical gear and rack type directional password theft-proofing ring lock has the beneficial effects that the password is set and can be replaced, so that the lock cylinder is avoided frequent replacing, and a key is saved; the lock is firm and wearable, resistant to prying and sawing, has the double-locking function, and is convenient, safe and reliable to use, and can be widely applied to the non-motor vehicle.

Description

Technical field [0001] The invention relates to a lock, in particular to a ring-shaped helical gear rack type direction password anti-theft lock. Background technique [0002] At present, ring locks are all open single lock cylinder devices, and thieves can easily use master keys or other means to open them, which is very unsafe. Contents of the invention [0003] In order to solve this problem, the present invention provides a ring-shaped helical rack-and-pinion direction password anti-theft lock. The ring-shaped helical gear rack type anti-theft lock with directional password can not only safely lock the non-motor vehicle, but also cannot be opened by others, and does not need a key, as long as the password is memorized, it can be turned by hand. At the same time, you can constantly change your password at home to make it more secure. [0004] The technical solution adopted by the present invention to solve its technical problems is: design a frame, the frame is a cubo...

AI Technical Summary

Problems solved by technology

[0002] At present, ring locks are all open-type single lock cylinder devices, and thieves can easily use master keys or other means to open them, which is very unsafe

Images