CN203846891U - Anti-theft idle door lock - Google Patents

Abstract

The utility model discloses an anti-theft idle door lock which comprises a lock cylinder (1) and an idle component. The idle component comprises an outer lock sleeve (6), an inner lock sleeve (3), a sliding lock (4) and a stirring disc (5). The sliding lock (4) is in a circular shape. Two outer-protruding idle limiting ribs (8) are distributed on the periphery. Two idle limiting grooves (7) are evenly formed in the inner wall of the outer lock sleeve (6). The sliding block (4) and the outer lock sleeve (6) are matched through a climbing angle of 50 degrees. Under the prepressing effect of a pressing torsional spring, the sliding block can only carry out climbing and rotating under the situation that torsion reaches a certain value, after the sliding block rotates through the idle limiting grooves, the stirring disc is separated from the lock cylinder under pushing of the sliding block, a connecting plate cannot be driven, the door lock cannot be opened, at the time, the door lock cylinder achieves idling, lock cylinder breaking caused by the fact that an unmatched key is inserted can be effectively avoided, or door lock failure caused by key braking can be avoided, and the anti-theft idle door lock can be used for theft resistance of other door locks.

Description

Antitheft idle running door lock

Technical field

The utility model belongs to lockset, relates to particularly a kind of antitheft idle running door lock.

Background technology

Door lock of the prior art is antitheft, is mainly to adopt lock core to do easily broken dot structure, in the time inserting non-matching key rotation lock core, lock core or key all can cause fracture, and after lock core fracture, the later stage is inserted valid key, door lock also cannot normally use, and causes a whole set of full lock to scrap.

Summary of the invention

The purpose of this utility model is to provide a kind of antitheft idle running door lock, and this door lock has idle running modular construction, utilizes this structure, can effectively prevent from inserting the lock core fracture that non-matching key causes, or key ruptures and cause door lock to lose efficacy.

The purpose of this utility model and solve its technical problem underlying be come by the following technical solutions real: a kind of antitheft idle running door lock, comprise lock core and idle running assembly, it is characterized in that, described idle running assembly is made up of exterior lock tube, interior lock tube, slide block and driver plate, slide block is circular, distribute on the circumference idle running limit rib of two evaginations, is uniformly distributed two idle running stopper slots at the inwall of exterior lock tube; Slide block coordinates by the ramp angle of 50 ° with exterior lock tube.

When use, in the time that valid key is inserted, the idle running limit rib of slide block coordinates with the idle running stopper slot of exterior lock tube, presses torsion spring to be delivered to slide block in axial power by driver plate, unblanks; In the time that non-matching key inserts, slide block coordinates by the ramp angle of 50 ° with exterior lock tube, exerts pressure by the pressure torsion spring of lock core assembly afterbody, and in the time that external force reaches certain value, door lock is realized idle running, does not open, and does not also damage.

The utility model compared with prior art has obvious advantage and beneficial effect.From above technical scheme, the utlity model has idle running modular construction, between slide block and exterior lock tube, have certain ramp angle, pressing under the precompressed effect of torsion spring, slide block need to could climbed and rotate in the situation that torsion reaches certain, when slide block rotated after idle running stopper slot, driver plate, under the promotion of slide block, departs from lock core, cannot drive junction plate and opens door lock, at this moment, lock core is realized idle running; Can effectively prevent from inserting the lock core fracture that non-matching key causes, or key ruptures and cause door lock to lose efficacy.Also can be for other door locks antitheft.

Brief description of the drawings

Fig. 1 is the utility model figure structure schematic representation,

Fig. 2 is the utility model lock tube schematic diagram,

Fig. 3 is the utility model slide block schematic diagram,

Fig. 4 is the left view of Fig. 3,

Fig. 5 is the utility model idle running modular construction schematic diagram,

Fig. 6 is the sectional view of Fig. 5.

Mark in figure: 1. lock core, 2. press torsion spring, 3. interior lock tube, 4 slide blocks, 5. driver chuck, 6. exterior lock tube, 7. idle running stopper slot, 8. idle running limit rib.

Detailed description of the invention

Below in conjunction with accompanying drawing and preferred embodiment, to antitheft idle running door lock detailed description of the invention, feature and effect thereof according to the utility model proposes, be described in detail as follows.

Referring to Fig. 1-5, a kind of antitheft idle running door lock, comprise lock core 1 and idle running assembly, it is characterized in that, described idle running assembly is made up of exterior lock tube 6, interior lock tube 3, slide block 4 and driver plate 5, slide block 5 is circular, and the idle running limit rib 8 of two evaginations that distribute on circumference is uniformly distributed two idle running stopper slots 7 at the inwall of exterior lock tube 6; Slide block 4 coordinates by the ramp angle of 50 ° with exterior lock tube 6.

When use, in the time that valid key is inserted, the idle running limit rib 8 of slide block 4 coordinates with the idle running stopper slot 7 of exterior lock tube 6, presses torsion spring 2 to be delivered to slide block 4 in axial power by driver plate 5, unblanks; In the time that non-matching key inserts, slide block 4 coordinates by the ramp angle of 50 ° with exterior lock tube 6, exerts pressure by the pressure torsion spring 2 of lock core assembly afterbody, and in the time that external force reaches certain value, door lock is realized idle running, does not open, and does not also damage.

The utlity model has idle running modular construction, between slide block 4 and exterior lock tube 6, there is certain ramp angle, pressing under the precompressed effect of torsion spring 2, slide block 4 need to could climbed and rotate in the situation that torsion reaches certain, and when slide block 4 rotated after idle running stopper slot 7, driver plate 5 is under the promotion of slide block 4, depart from lock core, cannot drive junction plate and open door lock, at this moment, lock core is realized idle running; Can effectively prevent from inserting the lock core fracture that non-matching key causes, or key ruptures and cause door lock to lose efficacy.Also can be for other door locks antitheft.

The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, any technical solutions of the utility model content that do not depart from, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, all still belong in the scope of technical solutions of the utility model.

Claims (1)

1. an antitheft idle running door lock, comprise lock core (1) and idle running assembly, it is characterized in that: described idle running assembly is made up of exterior lock tube (6), interior lock tube (3), slide block (4) and driver plate (5), slide block (5) is circular, distribute on the circumference idle running limit rib (8) of two evaginations, is uniformly distributed two idle running stopper slots (7) at the inwall of exterior lock tube (6); Slide block (4) coordinates by the ramp angle of 50 ° with exterior lock tube (6).