Lever handle push-pull lock

Abstract

The invention discloses a lever handle push-pull lock. A lever handle is pushed and pulled to realize locking and unlocking. A lock body is indirectly connected with the handle through eight lock body return springs; the handle is connected with a lock latch through a rod; the lock latch can be placed in a groove of a lock tongue; and the lock tongue has a symmetrical tongue shape structure and is connected with the lock body through one lock tongue return spring. When a door is closed, the handle is pushed or pulled so as to move the lock latch out of the groove of the lock tongue, tangential force of the outer wall of a lock hole on a door frame is applied to the lock tongue so that the lock tongue is retracted inward; when the handle is pushed continuously, the lock tongue crosses the outer wall of the lock hole on the door frame to reach the position of the lock hole on the door frame and is extended into the lock hole; and when a hand is loosened, the lock latch returns to the groove of the lock tongue and then the door is locked. When the door is opened, the handle is pulled to move the lock latch out of the groove on the lock tongue, tangential force of an inner wall of the lock hole on the door frame is applied to the lock tongue so that the lock tongue is retracted inward, the door continuously advances, the lock tongue crosses the inner wall of the lock hole on the door frame to reach the position out of the lock hole on the door frame and is extended outward, and the lock is unlocked. The novel lever handle push-pull lock can be used for dormitories, households and the like.

Description

technical field [0001] The invention relates to a door lock, in particular to a handle push-pull lock. Background technique [0002] The handle lock is a commonly used indoor lock at present. Its appearance is beautiful, practical and convenient. In order to improve safety, the handle lock is often equipped with a bolt tongue and a square tongue at the same time in the lock body. The common method is to control the movement of the bolt bolt with the handle, and Square tongue is realized by the rotation of the lock core that is located on the lock body driven by the key. The handle usually controls the latch tongue by twisting, but frequent use is likely to cause fatigue damage to the internal structure, and the more times of twisting, the greater the force required to unscrew it, and eventually there may be a problem that it cannot be unscrewed. It can be repaired or reinstalled. Whether the handle lock is a left handle, a right handle or a two-way handle, there are many ...

AI Technical Summary

Problems solved by technology

The handle usually controls the latch tongue by twisting, but frequent use is likely to cause fatigue damage to the internal structure, and the more times of twisting, the greater the force required to unscrew it, and eventually there may be a problem that it cannot be unscrewed. Can repair lock or reinstall

Whether it is a left handle, a right handle or a two-way handle, the handle lock has the disadvantages of numerous parts, complex structure, cumbersome handle reversing, inconvenient use, high production cost, and difficult production

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