Prying-resistant lock

Abstract

The invention discloses a prying-resistant lock. An accommodating cavity is formed in a lock shell of the prying-resistant lock, and an inclined tongue opening is formed in a lock body panel; a prying-resistant locking dog structure matched with the inclined tongue opening is arranged in the accommodating cavity; the prying-resistant locking dog structure comprises an inclined tongue and a pushing-resistant piece, wherein the pushing-resistant piece is arranged at one end portion of the inclined tongue; the pushing-resistant piece is provided with a plane end which is adjacent to a inclined plane area of the inclined tongue and is parallel to a plane area of the inclined tongue; and the pushing-resistant piece is further provided with a blocking end, the blocking end is adjacent to the thick end area, close to the interior of the lock shell, of the inclined tongue, and the blocking end is used for blocking outside when the pushing-resistant piece is pushed. When the inclined tongue ispushed with a sheet-like object through a crack of a door by someone maliciously, the sheet-like object contacts with the pushing-resistant piece before contacting the inclined plane area of the inclined tongue, the blocking end of the pushing-resistant piece is blocked outside at the same time, so that the sheet-like object can be prevented from contacting the inclined plane area of the inclinedtongue and forcing on the inclined tongue more, and the possibility of illegally entering a room caused by pushing the inclined tongue through the sheet-like object is avoided.

Description

technical field [0001] The invention relates to the field of locks, in particular to an anti-picking lock. Background technique [0002] With the development of technology, lock products are also constantly changing. Basically, the existing locks have oblique tongues, such as anti-theft locks and inner door locks, which have oblique tongues. The oblique tongues have oblique areas and flat areas; Baffle, under the action of closing force. The latch tongue is temporarily compressed back to the lock body. After the door is closed, the latch bolt relies on the force of the spring in the lock body to automatically pop out into the latch bolt hole of the retainer to keep the door closed. At this time, the flat area of ​​the latch tongue is in contact with the retainer. . [0003] However, there is a possibility of illegal entry into the room due to the oblique area of ​​the latch tongue being pulled out by card or other sheet-like objects through the crack of the door, so that t...

AI Technical Summary

Problems solved by technology

[0003] However, there is a possibility of illegal entry into the room due to the oblique area of ​​the latch bolt being pulled out by a card or other sheet-like objects through the door gap, so that the latch bolt retracts into the lock body

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