Push-pull lock

Abstract

The invention provides a push-pull lock which belongs to mechanical technical field, and solves the problems about how to improve convenience during reversing and reduce operation requirements. The push-pull lock comprises a housing and a push-pull handle, the lower end of which is hinged onto the housing, wherein the upper end of the push-pull handle can get close to or get away from the housingalong a hinged point; the lower end of the push-pull handle is equipped with a cylindrical connecting part; a movable rod is connected on the cylindrical connecting part in a sleeving mode; a positioning column is arranged in the housing; a reversing gear is arranged on the positioning column in the sleeving mode; the end part of the positioning column is in threaded connection to a fixing screw for preventing the reversing gear from dropping; an avoiding hole is formed in the outer side of the housing in a penetrating mode; teeth which can be engaged with any rack are distributed on one halfof the peripheral surface of the reversing gear; and the reversing gear is positioned in the avoiding hole, and the hole diameter of the avoiding hole is greater than the biggest outer diameter of thereversing gear. The push-pull lock has the advantages of being simpler, more convenient, and the like in reversing.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a push-pull lock. Background technique [0002] At present, traditional doors basically use mechanical locks and use the rotating handle as the way to open the door. After the bolt of the lock body is retracted, the door will not be fixed. For this reason, push-pull locks have appeared on the market. . The push-pull lock is equipped with a push-pull mechanism, and the part protected by the small bolt is added to the lock body of the lock. After the lock body of the lock is unlocked, the user's power is transmitted to the square steel shaft through the push-pull mechanism, and the square steel shaft drives the small lock. The tongue stretches to realize the unlocking action of the small deadbolt, which is equivalent to forming a secondary protection for the door. Generally speaking, push-pull locks have four unlocking methods: "left push", "left pull", "right push" and "right pul...

AI Technical Summary

Problems solved by technology

[0004] But above-mentioned push-pull lock also has some deficiencies: when needing the unblanking mode of pushing to the left, need to unload the first connector and the first rack and unload the second connecting member; Remove the first connecting piece and the first rack and remove the third connecting piece; when you need to push the unlock method to the right, you need to remove the fourth connecting piece and the second rack and remove the second connecting piece; you need to pull right When using the unlocking method, it is necessary to remove the fourth connecting piece and the second rack and remove the third connecting piece

However, both the first rack and the second rack are located in the housing, and the housing is fixed in the lock body. When changing the unlocking method, the lock body and the housing part need to be removed first, and then the lock body and the housing part need to be removed. The corresponding parts can only be disassembled after part of the gear assembly is disassembled. After the disassembly is completed, each part needs to be reinstalled one by one. Only experienced professionals can operate, and it is more difficult for users without installation experience

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