CN2167152Y - Automatic protector cylinder lock - Google Patents

Abstract

The utility model relates to an automatic safety type cylinder door lock, which comprises a lock body, a lock core, a columnar lock tongue, a sliding bar of a lock core, a projecting post of a stop knob, an unlocking projecting post, a lock returning spring, a lock buckling plate, a lock buckling ring, etc. The utility model also comprises an automatic lock return preventing device and an automatic safety device. The utility model which has the advantages of automatic safety, automatic lock return prevention, simple structure, simple application, security, etc. is an ideal cylinder door lock.

Description

Automatic protector cylinder lock

The utility model relates to a kind of house door insurance lock, particularly concealed door lock.

Existing concealed door lock mostly is latch at present.This being locked in when locking a door automatically locks or partly locks by closing the door.But after locking often otherwise (and without key) also door can be opened, safety can not get ensureing.

In order to address this problem, common way is to set up the purpose that reaches insurance once the available key of hook-shaped part by the reversing tapered end on the unlock chip that connects tapered end, all feel trouble and inconvenience but be people like this, yet carelessness does not easily have safety guarantee equally sometimes.

The utility model aims to provide a kind of door can voluntary insurance after locking, and can back prevent automatically after unblanking locking voluntary insurance formula pin tumbler lock simple in structure, safe and reliable.

The utility model comprises that lock body, lock core, columnar lock tongue, lock core sliding bar, protruded stigma of stop button, unlocking protruded stigma, return-locking spring, latch plate, snap close ring, snap close ring contain mouth etc.It also comprise by slider block, sliding rod hole, slide bar, slide bar spring, plug constitute automatically prevent back locking device and by safety tongue hole, safety tongue and on surrender protruded stigma, surrender protruded stigma chute, safety tongue spring, safety tongue contain the automatic safety that groove constitutes.These two kinds of devices had both stoped the rear lock core that opens the door to return lock, had played the effect of the back door lock security insurance of locking a door again.Automatically prevent back that the sliding rod hole center of locking device and snap close ring contain mouthful center on same horizon; The center that the center in the safety tongue hole of automatic safety and safety tongue contain groove is on same horizon; Surrender protruded stigma chute and safety tongue hole are perpendicular.So both satisfy structure needs of the present utility model, guaranteed its smooth work again.Below in conjunction with accompanying drawing the structure of the present utility model and the course of work are described in detail:

Accompanying drawing 1: the utility model latch plate shaft side figure.

Accompanying drawing 2: the utility model lock body structure figure.

Concrete structure of the present utility model is: lock core sliding bar 1 is housed in lock body 2, and lock core 4 slides up and down along it, and dead bolt 18 is made of one with lock core 4, then has safety tongue on lock core 4 left sides and contains groove 6, also unlocking protruded stigma 7 is housed.In lock body 1 upper right side return-locking spring 3 is housed.Slider block 9 is fixed on lock body 2 low insides and puts, and its slider block 9 bottoms are drilled with sliding rod hole 12, and slide bar 17, slide bar spring 16, plug 11 are housed in its hole.Constitute and prevent back locking device automatically.Be drilled with safety tongue hole 10 on slider block 9 tops, have surrender protruded stigma chute 15, the safety tongue spring 8 of in safety tongue hole 10, packing into, safety tongue 14, surrender protruded stigma 13, constitute automatic safety.Snap close ring 20 is made one with latch plate 21.Lock body and latch plate constitute door lock jointly.

When locking a door, when snap close ring 20 enters the snap close ring and contains mouthfuls 19, slide bar 17 is pushed in the sliding rod hole 12, to lower slider, columnar lock tongue 18 inserts in the snap close rings 20 finishes back lock to lock core 4 under the effect of return-locking spring 3.Meanwhile, safety tongue 14 is just in time aimed at safety tongue and is contained groove 6, under the promotion of safety tongue spring 8, makes safety tongue 14 enter safety tongue and contains in the groove 6, plays the voluntary insurance effect.When opening the door, key is inserted in the lockhole of lock core 4, rotational lock core 4, unlock chip promotes surrender protruded stigma 13 under the drive of lock core 4, make safety tongue 14 withdraw from safety tongue and contain groove 6, after lock core 4 surrenders, promote unlocking protruded stigma 7 again, door lock just is opened, and Men Kaihou, outdoor unlock chip promote protruded stigma of stop button 5 again and enter safety tongue and contain in the groove 6.At this moment, snap close ring 20 leaves the snap close ring and contains mouthfuls 19, slide bar 17 slide under the promotion of slide bar spring 16 columnar lock tongue 18 below, stop lock core 4 to glide.If this moment is without the stop button of hand on the indoor lock body of decorporating, and goes to close the door, and lock core 4 is to return lock (it is all very convenient that house-owner people passes in and out door).Owner be if will leave home to go out, closes the door behind the stop button as long as gently decorporate with have gentle hands, and 4 times locks of lock core, door lock again can voluntary insurance.

The utlity model has voluntary insurance, automatically back prevent locking, simple in structure, the easy advantage such as suitable, safe and reliable, be a kind of desirable cylinder drawback lock.

Claims (4)

1, a kind of voluntary insurance formula pin tumbler lock, comprise that lock body, lock core, columnar lock tongue, lock core sliding bar, protruded stigma of stop button, unlocking protruded stigma, return-locking spring, latch plate, snap close ring, snap close ring contain mouth etc., it is characterized in that, it also comprise by slider block, sliding rod hole, slide bar, slide bar spring, plug constitute automatically prevent back locking device and by safety tongue hole, safety tongue and on surrender protruded stigma, surrender protruded stigma chute, safety tongue spring, safety tongue contain the automatic safety that groove constitutes.

2, door lock according to claim 1 is characterized in that preventing back that the sliding rod hole center of locking device and snap close ring contain mouthful center on same horizon automatically.

3, door lock according to claim 1 is characterized in that the center in safety tongue hole of automatic safety and center that safety tongue contains groove are on same horizon.

4, door lock according to claim 1 is characterized in that surrender protruded stigma chute and safety tongue hole are perpendicular.

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