Mortise latch for mortise

Abstract

The present invention relates to a mortise latch coming in contact with a strike of a doorframe in opening / closing of a door to allow a left / right direction change of a first head part and perform insertion / withdrawal operation. In particular, a semicircular support protrusion protruding along the rear circumference of a hinge pin used for the left / right direction change of the head unit is included, such that left / right turning of the head unit is allowed by using the end part of the supporting protrusion in contact with the side wall part of a housing as a supporting point when the head unitis inserted, thereby preventing breakage or malfunction of a part through removal or distribution of an impact occurring during opening / closing and automatically returning the head unit to an original position before turning when being withdrawn. Accordingly, the mortice latch is able to be generally used for a sub latch and / or a larch bolt of a mortice.

Description

technical field [0001] The invention provides a bolt for a mortise lock, which contacts the door lock of the door frame when the door is opened and closed, so as to realize the conversion of the left and right directions of the first head and the action of popping in and out. More specifically, the bolt for a mortise lock includes The semicircular support block protrudes around the rear end of the hinge pin used in the conversion of the left and right directions of the head. When the head is ejected, the end of the support block touching the side of the shell is The support point realizes the swing of the head back and forth. By eliminating the impact of the door or dispersing the opening and closing, it prevents the accessories from being damaged or malfunctioning. When the head pops up, the head can return to the original position before the rotation. Therefore, the mortise lock The sub-lock or deadbolt can be widely used. Background technique [0002] Smart door locks ar...

AI Technical Summary

Problems solved by technology

[0004] The deadbolt on the mortise lock can be popped in and out through the rotation of the shaft linked with the handle. After the long-term use of the mortise lock, when the automatic reset function fails after the handle is rotated, the deadbolt cannot work normally. In this way, the door cannot be completely locked, and the there will be security issues

[0005] In recent years, there have been door locks using left and right rotary handles and push-pull handles. For example, the mortise lock of prior art 1, according to the direction of opening the door (that is, opening the door outward or pushing the door inward to open) , the operating direction of the push-pull handle will change, and thus the direction of the slope of the bolt of the mortise lock will also change (the slope faces indoors or outdoors). Therefore, the internal structure of the mortise lock becomes complicated and the production of accessories is increased. And the difficulty of assembly, there are problems such as reduced operational safety and increased failure rate

[0006] In order to solve this problem, the current development of the lock tongue is not linked with the handle, but through the contact between the lock tongue and the door lock, the lock tongue rotates left and right and changes direction to complete the ejection and ejection of the mortise lock (the following is the existing Technology 2), the mortise lock of this prior art 2 is popped in and out through the contact of the door lock buckle, and does not need the rotation of the lock tongue through the handle, but it cannot forcibly stop the lock tongue, so that the lock tongue can freely spring in and out, thus reducing The deadbolt locking function, and when the door bolt is released and the door is tried to open, the door bolt is stuck due to contact or friction between the door bolt and the door lock. Therefore, it is necessary to forcibly prevent the door from being closed. Lock tongue pop-in technology

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