CN2244585Y - Bidirectional safety anti-theft door lock - Google Patents

Abstract

The utility model discloses a bidirectional safety anti-theft door lock, comprising a lock shell 19. The lock shell is connected with a cover plate 1, the cover plate is connected with a lock head 7, and the lock head 7 is provided with a lock core 12 matched with a lock key 11. One end of the lock core 12 extends in the inner side of the cover plate 1. The bidirectional safety anti-theft door lock is characterized in that an inner end of the lock core 12 is connected with a pulling plate 2, and the pulling plate 2 is matched with a gear 17. The gear 17 is sheathed on a handle 20, the handle 20 is inserted on the lock shell 19, and the gear is engaged with a rack 18. An outer end of the rack 18 extends out of the outer part of the lock shell 19, and the cross-section of the key 11 matched with the lock core 12 is cross. The utility model has the advantages of safety, convenience, etc.

Description

The bidirectional safe safe-guard door lock

The utility model belongs to a kind of lockset, particularly a kind of bidirectional safe safe-guard door lock.

Existing security door all is to adopt two locksets, and one is to utilize common built-in lock to be loaded on the side of door, and the side and the doorframe of door are locked.Another built-in lock on the door is that the bar of wearing that drives in the door moves up and down, and makes to wear bar and stretch in the hole on the lower door frame, locks with doorframe going up of door is following.The structure of this kind built-in lock is to adopt common single face lock form, promptly the key that is complementary with lock core is a single cog, wearing bar by the dead man drive after lock core rotates moves, its shortcoming is: the very general volume of single cog key, prepare also more conveniently, the variation of profile of tooth has only about 2000 kinds, and repetitive rate is big, the yielding bending of dead man, it is easily stuck to wear bar.Also be easy in the use unplug with the iron plate of thin saw blade and so on, safety factor is little.

The purpose of this utility model provides a kind of bidirectional safe safe-guard door lock safe and reliable, easy to operate.

Technical solution of the present utility model is: a kind of bidirectional safe safe-guard door lock.It comprises lock housing 19, be connected to cover plate 1 with lock housing 19, be connected to tapered end 7 on the cover plate 1, be provided with a lock core 12 that is complementary with lock key 11 in the tapered end 7, cover plate 1 inboard is stretched in one termination of lock core 12, it is characterized in that: lock core 12 inner termination are connected to pulls out plate 2, pulling out plate 2 is complementary with gear 17, gear 17 is socketed on the handle 20, handle 20 is inserted on the lock housing 19, gear 17 and tooth bar 18 engagements, the external end head of tooth bar 18 stretches out lock housing 19 outsides, and the section of the key 11 that is complementary with described lock core 12 is a crosswise.

The utility model compared with prior art because the key section that is complementary with lock core is a crosswise, has the two sides tooth at least, and profile of tooth is changeful, can reach kind more than 20000, is difficult to preparation, the intensity height, and not yielding fracture, pick-proof is anti-to be pulled out.Owing to employing pinion and rack in it, therefore rotate flexible, convenient, nothing distortion stuck phenomenon, handle also is equipped with in the inboard, and having overcome this kind built-in lock can only will wear the shortcoming that bar stretches into lower door frame with key outdoors.

Below in conjunction with the drawings and the specific embodiments the utility model is further described:

Fig. 1 is the utility model specific embodiment structural representation;

Fig. 2 is the gear 17 shown in Figure 1 and the structural representation of tooth bar 18;

Fig. 3 is the front view of tapered end 7 shown in Figure 1;

Fig. 4 is an A-A sectional view shown in Figure 5;

Fig. 5 is a vertical view shown in Figure 3;

Fig. 6 is the front view of gear 17 shown in Figure 1;

Fig. 7 is a vertical view shown in Figure 6;

Fig. 8 is the front view that pulls out plate 2 shown in Figure 1;

Fig. 9 is the front view of key 11 shown in Figure 1;

Figure 10 is a B-B sectional view shown in Figure 9;

Figure 11 is a C-C sectional drawing shown in Figure 9;

Figure 12 is that K shown in Figure 11 is to view.

As shown in the figure: 19 is lock housing, by hollow fixed axis 4 cover plate 1 and lock housing 19 is connected as one, and hollow fixed axis quantity is 4, is distributed in the place, four angles of lock housing.Tapered end 7, be contained in (referring to Fig. 1) on the cover plate 1 with the lock core 12 of tapered end 7 coupling.Vertical three row's pellet shot from a slingshot springs 13 be housed between tapered end 7 and the lock core 12, go up pellet shot from a slingshot 14, pellet shot from a slingshot 15 and place kick 6 and back stop 5 down, become 90 ° successively.Key 11 cross sections that are complementary with lock core 12 are crosswise (referring to Fig. 9～12), and promptly three is tooth, and corresponding with following pellet shot from a slingshot 15, the termination of lock core 12, tapered end 7 is respectively equipped with lock core drilling-preventing sheet 10 and tapered end anti-drilling sheet 8, and tapered end 7 outsides are with tapered end cover 9.The inner termination of lock core 12 stretches in the lock housing 19 and is equipped with pulls out plate 2, pulls out protruding key 23 and lock core 12 couplings on plate 2 endoporus, drives when promptly lock core 12 rotates to pull out plate 2 and rotate.In the inner termination cannelure of lock core 12, be provided with a jump ring 3, in case lock core comes off.Be inserted with a handle 20 on lock housing, the inner termination of handle 20 is equipped with gear 17, and a retaining 21 is arranged on the gear 17, can stir retaining 21 driven gears 17 by protruding 22 and rotate when pulling out plate 2 rotations.Be respectively equipped with the tooth bar 18 that mates with gear 17 in the lock housing 19 up and down, stretch out from the two ends of lock housing 19 respectively the termination of tooth bar 18, when gear 17 rotates, can drive tooth bar 18 motions.This lock is contained on the door, and the termination of tooth bar 18 is fixed with wears bar, drives and wears the bar motion by pulling out plate 2, gear 17, tooth bar 18 when with key 11 rotational lock cores 12, make and wear bar and stretch in the hole on the upper and lower doorframe, reach the purpose of locking a door,, also can utilize this lock to lock a door at indoor rotation handle 20.

Claims (1)

1, a kind of bidirectional safe safe-guard door lock, it comprises lock housing [19], be connected to cover plate [1] with lock housing [19], be connected to tapered end [7] on the cover plate [1], be provided with a lock core [12] that is complementary with lock key [11] in the tapered end [7], cover plate [1] inboard is stretched in one termination of lock core [12], it is characterized in that: lock core [12] inner termination is connected to pulls out plate [2], pulling out plate [2] is complementary with gear [17], gear [17] is socketed on the handle [20], and handle [20] is inserted on the lock housing [19], gear [17] and tooth bar [18] engagement, the external end head of tooth bar [18] stretches out lock housing [19] outside, and the section of the key [11] that is complementary with described lock core [12] is a crosswise.

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