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Indoor door lock

A technology of door locks and lock casings, which is applied in building locks, buildings, building structures, etc., and can solve problems such as unfavorable anti-theft

Active Publication Date: 2014-05-07
WONLY SECURITY & PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is that the door lock in the prior art can be opened indoors by using the handle, which is not conducive to the problem of anti-theft. interior door lock

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 3

[0125] like Figure 1-4 The shown embodiment 3 improves the handle device on the basis of embodiment 2. The handle opening and closing assembly includes a handle shaft 300 and a handle dial sleeved on the handle shaft 300. The moving part 301, the handle shaft 300 is also provided with a safety structure, and the safety structure includes:

[0126] The safety toggle piece 302 is arranged on the handle shaft 300;

[0127] The handle safety piece 303 is formed with a central hole suitable for the handle shaft 300 to pass through. and when the handle shaft 300 rotates in the unlocking direction, the safety toggle 302 can rotate in the lost motion groove 304 without driving the handle safety piece 303 rotation, when the handle shaft 300 rotates in the opposite direction, the safety toggle piece 302 can contact the groove wall of the lost motion groove 304, and drive the handle safety piece 303 to rotate;

[0128]Handle safety sheet reset biasing part 305, said handle safety she...

Embodiment 4

[0135] like Figure 1-4 As shown, on the basis of Embodiment 3, this embodiment 4 improves the retraction drive mechanism. The retraction drive mechanism includes the first retraction drive mechanism controlled by the handle, and the second retraction drive mechanism controlled by the lock head. retract the drive mechanism, where the

[0136] The first retraction driving mechanism includes a first coupling structure 400 disposed on the side of the deadbolt plate 5 facing the lock cylinder toggle 401 , and the lock cylinder toggle 401 rotates in the unlocking direction with the lock cylinder toggle 401 . The first combining structure 400 is combined, and drives the locking bolt plate 5 to retract into the lock housing 2 under the cooperation of the locking bolt guiding structure guiding the locking bolt plate 5 in the locking or retracting direction;

[0137] The second retracting drive mechanism includes a second coupling structure 403 arranged on the side of the deadbolt pla...

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Abstract

The invention relates to an indoor door lock which comprises a lock shell, a long tongue component, a driving mechanism, a locking mechanism, an operation mechanism, a lock head opening-closing component and a handheld opening-closing component. A lock head in the lock head opening-closing component is of a double-lock-head structure which can be opened by inserting a key indoors and outdoors. The double-lock-head structure is provided with a lock cylinder stirring piece. A locking-out locking device is unlocked only by stirring of the lock cylinder stirring piece. When the lock cylinder stirring piece rotates in the unlocking direction, locking on a lock tongue from the locking-out locking device is removed first, the lock cylinder stirring piece rotates continuously, and a lock tongue plate is dragged back to the lock shell. The indoor door lock is simple and compact in structure, good in anti-theft effect, convenient to unlock and low in noise.

Description

technical field [0001] The invention relates to the field of door locks, in particular to an indoor door lock in which a key must be used indoors to safely open the lock. Background technique [0002] As a security product, door locks must be safe and stable. Safety can be measured from two aspects: one is to resist vandalism, pranks and deliberate violent damage such as prying and drilling, and the other is to prevent technical opening. As a door lock, its stability is also very important. The door cannot be opened when it should be opened, and the door cannot be closed when it should be closed, which may cause loss or inconvenience to the user. [0003] Chinese patent document CN101915029B discloses a lock-out control mechanism and a chain door lock with the mechanism, including: a lock housing, the bolt mechanism arranged in the lock housing, and a lock head opening and closing assembly and the operating mechanism of the handle opening and closing assembly; and the loc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05B63/14E05B15/00
Inventor 章瑶台支崇铮
Owner WONLY SECURITY & PROTECTION TECH CO LTD
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