CN2187645Y - Theft-proof anti-prize lock - Google Patents

Abstract

The utility model discloses an anti-theft and anti-prizing lock. The utility model is characterized in that convex blocks are arranged on two lock tongues comprising an oblique lock tongue and a square lock tongue, and the expansion and contraction of the oblique lock tongue and the square lock tongue enable an inclined plane slide block corresponding to the convex blocks to do vertical motion via the convex blocks. A groove is arranged on the inclined plane slide block, and the groove can hook the convex block on the square lock tongue in normal times to enable the square lock tongue to retract into a lock body. When the utility model is used, the simultaneous protrusion of the two lock tongues can be accomplished by the contact of the oblique lock tongue and a lock catch, and a key is not needed. The utility model has the advantages of reasonable structure, convenient use, high safety coefficient, theft prevention, prizing prevention, etc.

Description

Theft-proof anti-prize lock

The utility model relates to a kind of double cylinder rim drawback lock.

At present, common door latch commonly used as long as one bump can be on the door lock gently, but if push the chamfered portion of dead bolt with a hard thin thing, just can be opened door very easily, does not have the anti-theft pick-proof function.In recent years, popular theftproof lock on the market (the double lock tongue lock with oblique dead bolt and Square lock bolt) is during use, close the door and can only run into the inclined-plane dead bolt, Square lock bolt then need could lock with key, uses very inconvenience, carelessness is arranged slightly, and this lock has just lost the anti-theft pick-proof function.

The purpose of this utility model is to provide a kind of and collides with snap close gently when oblique tongue, just can realize the anti-theft pick-proof door lock of two tongue lockings, easy to use, vi have high safety.

The technical solution of the utility model is: by lock body, lock core, rotating mechanism, oblique Square lock bolt.Compositions such as controlling organization, tiltedly, a projection is respectively arranged on two dead bolts of Square lock bolt, tiltedly, flexible can the making with the corresponding inclined plane slide block of projection by projection of Square lock bolt move both vertically.One groove is arranged on the slide block, the projection on the Square lock bolt can be hooked at ordinary times, thereby make Square lock bolt withdrawal lock body, be provided with spring between Square lock bolt rear end and lock body; Block is arranged on the inclined plane slide block, and block blocks mutually with retaining groove on the lock housing is corresponding, is equipped with on the inclined plane slide block to the moving spring of travelling backwards, and lock core is connected with dead bolt by rotating mechanism, controlling organization.

Accompanying drawing is a structural representation of the present utility model.

Below in conjunction with accompanying drawing the utility model is described in further detail:

Among Fig. 1,7 for end face be the oblique dead bolt on inclined-plane, 8 is Square lock bolt, tiltedly on the dead bolt 7 projection 6 is arranged, it is that two triangles that are parallel to each other are formed two inclined plane slide blocks that projection 9,4 is arranged on the Square lock bolt 8, two inclined-plane slideways of slide block 4 push up mutually with projection 6,9 oblique, Square lock bolt 7,8 respectively, and promotion is oblique, Square lock bolt moves both vertically, and wherein on the inclined-plane slideway groove 17 is arranged, and groove 17 can make the projection 9 on the Square lock bolt 8 hook to drive Square lock bolt 8 withdrawal lock bodies; Be provided with spring 12 between Square lock bolt 8 rear ends and lock body, tiltedly also there is spring dead bolt 7 rear ends, respectively there is a block 15,10 inclined plane slide block 4 both sides, block 15,10 blocks mutually with retaining groove on the lock housing is corresponding, make slide block 4 location, being equipped with on the slide block 4 can be to the moving spring 11 of travelling backwards, and lock core is connected with dead bolt by rotating mechanism, controlling organization 2, there is a clamp 18 to block (or indoor controlling organization blocks mutually with draw-in groove 16) mutually with the draw-in groove 11 of locking of dead bolt rear end on the lock control mechanism 2.3,13 is cylindrical projection on the lock body, and 15 is U type projection on the lock body, and 14 is sprue behind the spring, have on the lock housing one with the indoor controlling organization of controlling organization 2 similar shapes, can indoorly locking.

During use, when dead bolt 8 is pressed into lock body, projection 9 on the dead bolt will push slide block 4, slide block 4 will move right, when dead bolt 8 is depressed into groove 17 under the corresponding with it slide block, slide block 4 is moved to the left under the effect of spring 11, projection 9 just is stuck in groove 17 places of slide block 4, the lock body so Square lock bolt 8 is just withdrawn, at closing time, the angled end-face of dead bolt 7 is pressed into lock body, projection 6 on the dead bolt will be pushed slide block 4 to the right, and when being pushed into certain position, projection 9 will be run out of the groove control in the slide block 4, protruding under the effect of spring 12, because the inhibition that the dead bolt in the doorframe is buckled, it will just stretch out when the arrival dead bolt is smashed corresponding position, fall into dead bolt and smash, while dead bolt 1 stretches into corresponding with it dead bolt and smashs, and reaches the purpose that two dead bolts all stretch out.At this moment, the clamp 14 on the lock core blocks mutually with the notch 15 of dead bolt rear end automatically, makes dead bolt by the control assembly control that links to each other with lock core, has only the use key, and rotational lock core is opened control assembly, could open door lock.

As long as the utility model is shut the door, two dead bolts all stretch out automatically, have tamper-resistant function and two-way safeguarding function, do not need just can automatically lock, when opening the door with key, must use key to open, can not produce unsafe factor, compared with prior art, have rational in infrastructure because of ignoring locking, easy to use, vi have high safety, advantages such as pick-proof and anti-theft.

Claims (3)

1, a kind of anti-theft pick-proof lock, comprise lock body, lock core, rotation controling mechanism, oblique, Square lock bolt, it is characterized in that oblique, Square lock bolt (7,8) is provided with projection (6,9), with the inclined plane slide block (4) that projection (6,9) can make tiltedly having, Square lock bolt (7,8) moves both vertically, have on the slide block (4) and the projection (9) on the Square lock bolt (8) can be hooked, make Square lock bolt (8) enter the groove (17) of inclined plane slide block, have on the inclined plane slide block (4) and make it to be provided with spring (12) between Square lock bolt (8) rear end and lock body to the moving spring (11) of travelling backwards.

2, anti-theft pick-proof as claimed in claim 1 lock is characterized in that inclined plane slide block (4) is provided with block (15,10), and block (15,10) blocks mutually with retaining groove on the lock housing is corresponding.

3, anti-theft pick-proof lock as claimed in claim 1 is characterized in that oblique dead bolt (7) rear end handle and spring.