CN2221082Y - Multifunctional door lock - Google Patents

Abstract

The utility model relates to a multifunctional door lock which is an improvement on the basis of a multifunctional door lock of which the patent number is 91205287.2. The utility model comprises a lock body, a lock cap and a lock key, wherein, the surface of the lock body is provided with a lock bolt, a lock core, an outdoor locking knob and a crown bar used for indoor unlocking. A slide plate and a pull spring are arranged in an inner cavity of the lock body. The lock bolt is fixed on the front end of the slide plate. A rocker arm which can block off the slide plate and can lead the slide plate to be kept at a lock position is arranged at the back of the slide plate. The rocker arm is fixed on the lock body by a shaft. Both ends of the rocker arm respectively contact the lock core and the crown bar. The multifunctional door lock of the utility model can be unlocked and locked indoors and outdoors and has the characteristics of reliable locking performance.

Description

Multi-function door lock

It is essential that the utility model relates to the human lives, is a kind of multi-function door lock.

Number of patent application is a kind of multi-function door lock of 91205287.2, after repeatedly using, exists the problem of auto-unlocking in the sharp pounding environment.

The purpose of this utility model provides the reliable multi-function door lock of a kind of improved locking.

The purpose of this utility model is to realize like this, multi-function door lock has lock body, lock nut, key three parts, surface of lock body is provided with dead bolt, core, outdoor locking turn-knob and is used for indoor push rod of unblanking, be provided with slide plate and extension spring in the lock body inner chamber, dead bolt is fixed on the nose, the rear of slide plate is provided with can be blocked slide plate and make slide plate remain on the rocking arm of lock-bit, and rocking arm is fixed on the lock body by axle, and the two ends of rocking arm contact with push rod with core respectively.

Narration now is of the present utility model to be unblanked, block action.At ordinary times, after slide plate was pulled to by extension spring, dead bolt was retracted into lock body, is unlocking condition; When locking turn-knob outside the turning cell or indoor locking turn-knob, slide plate is dialled forward, and dead bolt stretches out lock body and enters in the lock nut, and rocking arm is arrived lock-bit by spring pulling retaining in the slide plate back, unclamp turn-knob this moment; In the time of need unblanking, the outdoor use key is pressed before inserting and continuing behind the core, pushes rocking arm open, and after slide plate was pulled to by extension spring, dead bolt withdraws from unblanked, and pushes rocking arm open and unblanks at the indoor push rod that then can press.

Compare with 91205287.2 door lock, multi-function door lock of the present utility model moves to the dead astern with rocking arm from the slide plate side, reaches the reliable purpose of locking.

Characteristics of the present utility model are: locking is reliable.

Further specify the utility model below in conjunction with accompanying drawing.

Embodiment 1: referring to Fig. 1, and 2,3,4, be typical structure of the present utility model.Fig. 1 is installed in outward appearance diagrammatic sketch on the door for the utility model, and lock body 1 is installed on the door 15, can see dead bolt 4, core 11 and outdoor locking turn-knob 12.Fig. 2 is a rear elevation of the present utility model, lock nut 2 is installed on the doorframe upper lock body can see dead bolt 4, the position of indoor locking turn-knob 5 and push rod 6, for can increase the cavity of adorning electric pair of part, Fig. 3 is the location diagram of slide plate and rocking arm in the air-vent 14, this moment, slide plate 7 was at locked position of coupler; rocking arm 9 retainings are in the slide plate back, and Fig. 4 is for controlling the configuration diagram that rocking arm is unblanked, and core 11 or push rod 6 are pressed into Shi Junneng makes rocking arm rotate compression springs 10 around axle 10; slide plate is retracted by extension spring 8, finish and unblank.Lock body, lock nut are the steel plate compression molding with thick 0.8mm; Slide plate, rocking arm then are the compression molding of 2mm steel plate, and push rod is made with the copper bar of Φ 5mm, and other each part all adopts standard component.

Embodiment 2, adorn electric pair of part for increasing on the basis of embodiment 1, thereby have the electric alarm anti-theft feature; Increase the installation tool and pay part, thus have can not unblank in the control room outside with indoor can not unlocking function, these pairs part all is arranged in the lock body inner chamber.

Claims (1)

1, multi-function door lock has lock body 1, lock nut 2, key 3 three parts, and surface of lock body is provided with dead bolt 4, core 11, it is characterized in that:

Surface of lock body also is provided with outdoor locking turn-knob 12, indoor locking turn-knob 5 and is used for the indoor push rod of unblanking 6;

Be provided with slide plate 7 and extension spring 8 in the lock body inner chamber, dead bolt is fixed on the nose, and the rear of slide plate is provided with can be blocked slide plate and make slide plate remain on the rocking arm 9 of lock-bit, and rocking arm is fixed on the lock body by axle 10, and the two ends of rocking arm contact with push rod with core respectively.

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