CN2080539U

CN2080539U - Antipicking door lock cover

Info

Publication number: CN2080539U
Application number: CN 90213517
Authority: CN
Inventors: 张清林
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-06-30
Filing date: 1990-06-30
Publication date: 1991-07-10

Abstract

The utility model relates to an accessory of antipicking door lock, comprising a number lock, a turn knob, a safety cover, an illuminating lamp and a switch, which are respectively fixed on a circular-shaped base. The back face of the turn knob is provided with a driving lever and a shifting fork. Because a shifting pin is driven to move right and left by the rotating of the turn knob and the safety cover is opened by the control of the number lock, the utility model has the advantages of simple structure, good anti-prizing performance, high safety owing to the fixing of the utility model by a screw bolt.

Description

Antipicking door lock cover

The utility model is a kind of accessory of pick-proof door lock.

Present employed door lock and market sale all kinds are newly locked, mostly be that lock core is exposed outside, outside lock is installed, do not have the accessory of other lock and the safeties of its strick precaution, its shortcoming be can be directly with accordingly key operated or with other instrument directly the lock core damage to reach the purpose of unlatching.Sometimes foreign material are put into the keyhole of lock core under its individual cases, to destroy the normal use of lock, because the lock security reliability of above structure types is poor, the pick-proof performance is bad, does not have the effect of strick precaution sometimes.

For solving above deficiency, the utility model provides a kind of pick-proof locking closure, utilize the rotation of combination lock control handle, drive the unlatching that the lock fork is controlled protecting cap above the lock core by driving lever, thereby make lock core under a kind of closed state, have only by combination lock and just can open protecting cap, thereby reach the purpose of safety precaution.

Design scheme of the present utility model is in the base of a bowl type dome combination lock to be housed, the inside of combination lock is a combination lock chuck that is made of the compound steel sheet, a breach is arranged on every layer of chuck, when having only the number position alignment, the chuck breach could align consistent, corresponding gap position has shift fork, shift fork is driven by driving lever can be in the interior move left and right of making a detour of oneself, driving lever and knob post are fixed as one and at the back side of knob post, the shift fork that manually also can drive by knob is made move left and right, the shift fork left side is that sharp type can stretch in the breach of combination lock chuck just, the shift fork right-hand member is a forked type, lucky biasing post corresponding to protecting cap, biasing post is fixed on the eccentric position on the protecting cap, protecting cap is the styletable type of circle, just can put into the breach of depression corresponding above the lock core with protecting cap, protecting cap enters in the breach, the volume stem of the intrinsic nut in end, the back side stretches out, just pinned by shift fork, after shift fork was removed, spring was equipped with in intrinsic nut in the end of eccentric shaft and the inside on the protecting cap, and protecting cap is removed and can be ejected automatically and can rotate around eccentric shaft, to be provided with illuminating lamp and luminous lamp switch in the side of protecting cap so that use night so that keyhole is revealed.

Its course of work: move knob with hand-screw after aiming at the combination lock number, stretch in the breach of dialing chuck by knob post, driving lever drive shift fork, the shift fork right-hand member withdraws from simultaneously, effect by the biasing post spring is ejected protecting cap automatically, doing suitable rotation can unblank, otherwise lock core is closed, and is safe and reliable.

The advantage of the utility model be simple in structure, pattern is trendy, the pick-proof performance is good, safe and reliable.

The accompanying drawings embodiment:

Fig. 1 is a kind of pick-proof door lock lid Facad structure figure;

Fig. 2 is a kind of pick-proof door lock lid reverse side structure chart;

Know by Fig. 1,1 is the combination lock dial, 2 is knob, rotate in order to the rotation driving lever, 3 is protecting cap, just fasten the lock core window and can enter above the lock core in the recessed latent breach, can't transfer to, 4 is lock core, 5 is illuminating lamp, 6 is switch, for night lighting is used, 7 is the pick-proof lock cover base, other element all is fixed in the above, and is placed with four bolts 11 on every side and is fixed on the door, is known by Fig. 2,8 is shift fork, 9 is driving lever, driving lever is fixed on the knob post 10, but shift fork 8 can be with the rotation move left and right of knob 2, and 13 is the eccentric shaft end nut on the protecting cap 3, protecting cap 3 can pivot, after protecting cap 3 fell into above the lock core, nut is outstanding was just nipped by shift fork 8 ends, and be locking-in state this moment, 12 is the combination lock chuck, after aiming at number, shift fork 8 enters in the breach, and the protecting cap biasing post ejects automatically owing to spring action, be opening, whole locking closure can be fixed on the door by bolt 11 on every side.

Claims

1, a kind of pick-proof door lock lid is characterized in that being fixed with on the locking closure base 7 of combination lock 1 knob 2 that has knob post 10, the protecting cap 3 that band eccentric shaft 13 is housed on lock core 4 is housed, and illuminating lamp 5 and luminous lamp switch 6 are housed in its side.

2, according to the described pick-proof door lock of claim 1 lid, it is characterized in that being fixed with driving lever 9 at the back side of knob post 10, shift fork by dead man drive can be in the track of oneself move left and right.

3, according to the described pick-proof door lock lid of claim 1, it is characterized in that spring is equipped with in the intrinsic nut in end and the inside of eccentric shaft 13 on protecting cap 3, protecting cap 3 is removed and can be ejected automatically and can rotate around eccentric shaft 13.