Courtyard door box type automatic lock

Abstract

The invention relates to a courtyard door box type automatic lock. The courtyard door box type automatic lock is characterized by consisting of a front surface plate, a back surface plate, a left side plate, a right side plate, an upper cover plate and a bottom plate, wherein the lower end of the left surface plate is provided with a key hole, the lower end of the back surface plate is provided with a door staple hole, the upper end of the back surface plate is provided with an oil injection hole, the back surface plate in an inner cavity of the lock body is provided with a fixed lock bolt, a lock bolt shifting sheet, a lock bolt balance lever, a lock bolt sliding support plate and a lock bolt control sleeve, and is chiseled with a door staple hole, a door staple is made of an iron plate, and is provided with a locking hole and a door staple head inclined surface, a magic plate is provided with a magic groove and a key positioning hole, the key is provided with key teeth which are matched with the magic groove, and the magic plate is fixedly arranged in the inner side of the front surface plate; the key enters the lock, and the door can be unlocked when the key is completely matched with the magic plate; the door staple enters the lock via the door staple hole, the lock bolt enters the locking hole, and then the door can be locked; or else, the door is unlocked; the bottom plate is provided with a lubricating oil storage groove, and the four corners of the bottom plate of the lock body are respectively provided with a water outlet hole.

Description

Technical field [0001] The invention relates to a lock, in particular to a box-type automatic lock for a courtyard door. Background technique [0002] At present, the door locks used in the courtyard are all ordinary tumbler locks. This kind of lock is inconvenient to use. When opening, the lock must be opened and removed; when closing, the lock must be hung and locked, which is very troublesome; and it is waterproof Poor performance, once it rains, the rain will seep into the lock, so it is often rusted to death. There has been no good solution to the above problems. Contents of the invention [0003] Aiming at the deficiencies in the current door locks, I invented a box-type automatic lock for courtyard doors. It is characterized by a front panel, a rear panel, a left panel, a right panel, an upper cover, a bottom panel, a keyhole, a door nostril, an oil filling hole, a key, a key tooth, a magic plate, a magic-shaped slot, a key positioning hole, and a lock. Tongue, ...

AI Technical Summary

Problems solved by technology

[0002] At present, the door locks used in the courtyard are all ordinary tumbler locks. This kind of lock is inconvenient to use. When opening, the lock must be opened and removed; when closing, the lock must be hung and locked, which is very troublesome; and it is waterproof Poor performance, once it rains, the rain will seep into the lock, so it is often rusted to death

There has been no good solution to the above problems

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