CN207892370U - Antitheft sylinder - Google Patents

Abstract

The utility model is related to a kind of antitheft sylinders comprising shell, spring lock, connecting lever, the lock core end of spring lock are equipped with the first polygon shaft of disjunctor, and connecting lever is equipped with the second polygon shaft；It further include sliding sleeve, sliding sleeve one end is equipped with and the first polygon shaft, the matched polygon sets of holes of the second polygon shaft, and spring of the setting for reset between the sliding sleeve end and shell, the sliding sleeve other end is slidably socketed lock core, lock core side wall is equipped with conducting keyhole and external chute hole, sliding limit is formed by pin between sliding sleeve and chute hole, and pin stretches into keyhole；When being inserted into correct key in the keyhole of lock core, key pushes pin that sliding sleeve is driven to be axially slided to and is sequentially connected simultaneously with the first polygon shaft, the second polygon shaft, realizes normal unlock；When being not inserted into correct key in the keyhole of lock core, the one of sliding sleeve and the first polygon shaft, the second polygon shaft, which is detached from, to be sequentially connected, and can not unlock, antitheft purpose is realized with this.

Description

Antitheft sylinder

Technical field

The utility model is related to locksets, are a kind of antitheft sylinders.

Background technology

Theftproof lock is different according to the principle of lock core, is divided into spring lock, blade lock, magnetic key operated lock, intelligent card door lock, Fingerprint Lock Deng, wherein most commonly seen on the market is spring lock, such as I-shaped lock, cross lock, computer lock etc., belong to spring lock.Bullet The principle of son lock is the cylindrical component using multiple and different height（Referred to as snap, pellet or pearl）Lock core is lockked, when being put into just After true key, each cylindrical component is pushed to sustained height, and lock core, that is, rotatable is realized and unlocked.But existing spring lock because Operation principle is simple, therefore anti-theft performance is not high, is easy to be unlocked by tool.To solve the technical problem, prior art has disclosed More scheme for example, by using multiple rows of billiards structure, or using vertical and horizontal two-way billiards structure, is opened although these structures can increase The difficulty of lock, but unlocking principle does not change still, is still easy the unlocking that is cracked.For this purpose, needing to existing theftproof lock It is improved.

Utility model content

To overcome the problems, such as that theftproof lock is easy the unlatching that is cracked in the prior art, the utility model designs a kind of anti-theft billiards Lock, adopts the following technical scheme that realization.

A kind of antitheft sylinder comprising shell, spring lock and blocking lock bolt action connecting lever, spring lock include lock core, Lock tube, lock core are equipped with keyhole, and lock core end is linked with connecting lever, and lock tube is fixed on shell, and connecting lever is rotatably positioned at shell；It is described Lock core end is equipped with the first polygon shaft of disjunctor, and it is polygon that the connecting lever is equipped with identical with the first polygon shaft section second Shape axis；The antitheft sylinder includes clutch, and clutch includes sliding sleeve, spring, and sliding sleeve one end is equipped with and described the The matched polygon sets of holes of one polygon shaft, the second polygon shaft, and setting is used for reset between the sliding sleeve end and shell Spring, the sliding sleeve other end are slidably socketed the lock core, and lock core side wall is equipped with conducting keyhole and external chute hole, sliding sleeve Sliding limit is formed by pin between chute hole, and pin stretches into the keyhole；When in the keyhole of the lock core When being inserted into correct key, key pushes pin that sliding sleeve is driven to be axially slided to and first polygon shaft, second polygon Shape axis is sequentially connected simultaneously；When being not inserted into correct key in the keyhole of the lock core, the sliding sleeve and described first The one disengaging of polygon shaft, the second polygon shaft is sequentially connected.By above structure, first is realized using the sliding of sliding sleeve The disconnection and connection of polygon shaft, the second polygon shaft, only while being inserted into key, sliding sleeve by the first polygon shaft, Second polygon shaft can realize unlocking when being reliably connected, even if can only dally if otherwise cracking spring lock, dally in spring lock In the process, even if sliding sleeve and the first polygon shaft, the second polygon shaft are sequentially connected, because rotation angle limits, can not yet Defined angular travel of unlocking is completed, still can not unlock, to greatly improve the difficulty of unlocking, be not easy the unlocking that is cracked.

In above-mentioned antitheft sylinder, the aperture of the polygon sets of holes of the sliding sleeve is less than sliding sleeve itself set internal orifice dimension, The length of polygon sets of holes is more than the length of second polygon shaft, and one end diameter of axle is equipped between the second polygon shaft and connecting lever Less than the shaft part of the second polygon shaft.With this configuration, make the condition that sliding sleeve is sequentially connected with the second polygon shaft more tight Lattice, sliding sleeve slided position or do not slided can not realize transmission with the second polygon shaft in place.

In above-mentioned antitheft sylinder, the polygon sets of holes inner wall of the sliding sleeve forms the annular groove of indent, and annular groove Groove width be more than second polygon shaft length.With this configuration, it further increases sliding sleeve and the second polygon shaft passes The difficulty of dynamic connection, that is, increase the difficulty for cracking unlocking.

In above-mentioned antitheft sylinder, the chute hole that the lock core is provided symmetrically, the sliding sleeve is correspondingly connected with A pair of of pin, and one of pin is only used for sliding limit.With this configuration, the stability of sliding sleeve sliding is improved.

In above-mentioned antitheft sylinder, the pin is offseted with the teeth portion of the key.It with this configuration, can be according to key Teeth portion structure is different, designs the pin of different length.

The utility model has the advantage of the difficulty for greatly improving lockset and cracking unlocking, improve the safety of lockset, especially It is suitable for the lockset of 90 ° of unlockings of corner.

Description of the drawings

Fig. 1 is the original state structural schematic diagram of the utility model.

Fig. 2 is the unlock state structure diagram of the utility model.

Serial number and entitled in figure：1, lock core, the 101, first polygon shaft, 2, lock tube, 3, sliding sleeve, 301, annular groove, 4, spring, 5, connecting lever, the 501, second polygon shaft, 6, shell.

Specific implementation mode

In conjunction with attached drawing, the utility model is described as follows.

As shown in Figure 1 and Figure 2, which includes the connecting lever 5 of shell 6, spring lock and blocking lock bolt action, pellet Lock includes lock core 1, lock tube 2, and lock core 1 is equipped with keyhole, and 1 end of lock core is linked with connecting lever 5, and lock tube 2 is fixed on shell 6, connecting lever 5 It is rotatably positioned at shell 6.1 end of lock core is equipped with the first polygon shaft 101 of disjunctor, and connecting lever 5 is equipped with and first polygon shaft Identical second polygon shaft in 101 sections 501.The antitheft sylinder includes clutch, and clutch includes sliding sleeve 3, bullet Spring 4,3 one end of sliding sleeve are equipped with and the first polygon shaft 101,501 matched polygon sets of holes of the second polygon shaft, and sliding sleeve The aperture of spring 4 of the setting for reset between 3 ends and shell 6, polygon sets of holes is less than sliding sleeve 3 itself set internal orifice dimension, The length of polygon sets of holes is more than the length of the second polygon shaft 501, and one end is equipped between the second polygon shaft 501 and connecting lever 5 The diameter of axle is less than the shaft part of the second polygon shaft 501, and the polygon sets of holes inner wall of sliding sleeve 3 forms the annular groove 301 of indent, and ring The groove width of shape slot 301 is more than the length of the second polygon shaft 501.3 other end sliding sleeve 3 of sliding sleeve connects lock core 1,1 side wall of lock core Equipped with conducting keyhole and the external symmetrically arranged chute hole of a pair, pass through a pair of of pin shaped between sliding sleeve 3 and chute hole It is limited at sliding, and a pin stretches into keyhole, another pin is only used for sliding limit.When in the keyhole of lock core 1 When being inserted into correct key, the teeth portion of key pushes pin that sliding sleeve 3 is driven to be axially slided to and the first polygon shaft 101, the Two polygon shafts 501 are sequentially connected simultaneously；When being not inserted into correct key in the keyhole of lock core 1, sliding sleeve 3 and more than first The one disengaging of side shape axis 101, the second polygon shaft 501 is sequentially connected.

The operation principle of the utility model is：Under original state, sliding sleeve 3 is only passed with the first polygon shaft 101 of lock core 1 Dynamic connection, is not sequentially connected with the second polygon shaft 501, can not be passed between the first polygon shaft 101 and the second polygon shaft 501 It is dynamic.When being inserted into correct key in the keyhole of lock core 1, the teeth portion of key pushes pin, and drive sliding sleeve 3 slide into First polygon shaft 101, the second polygon shaft 501 are sequentially connected, at this point, rotation key, you can realize unlocking operation.Work as lock core When being not inserted into correct key in 1 keyhole, the teeth portion of key is difficult to push pin that sliding sleeve 3 is driven to slide, or even if pushes away Dynamic sliding sleeve 3 slides, and sliding sleeve 3 crosses position sliding or slides the second polygon shaft of the connecting lever 5 not in place that still can not be sequentially connected 501, i.e., it can not complete to unlock, realize antitheft purpose.

Claims (5)

1. a kind of antitheft sylinder comprising shell（6）, spring lock and blocking lock bolt action connecting lever（5）, spring lock includes lock Core（1）, lock tube（2）, lock core（1）Equipped with keyhole, lock core（1）End and connecting lever（5）Linkage, lock tube（2）It is fixed on shell （6）, connecting lever（5）It is rotatably positioned at shell（6）；It is characterized in that the lock core（1）End is equipped with the first polygon shaft of disjunctor （101）, the connecting lever（5）Equipped with first polygon shaft（101）Identical second polygon shaft in section（501）；This is antitheft Spring lock includes clutch, and clutch includes sliding sleeve（3）, spring（4）, sliding sleeve（3）One end is equipped with and described first Polygon shaft（101）, the second polygon shaft（501）Matched polygon sets of holes, and sliding sleeve（3）The end and shell（6）Between Spring for reset is set（4）, sliding sleeve（3）Other end sliding sleeve（3）Connect the lock core（1）, lock core（1）Side wall is equipped with and leads Logical keyhole and external chute hole, sliding sleeve（3）Sliding limit is formed by pin between chute hole, and pin stretches into institute It states in keyhole；When the lock core（1）Keyhole in be inserted into correct key when, key push pin drive sliding sleeve（3） It is axially slided to and first polygon shaft（101）, the second polygon shaft（501）It is sequentially connected simultaneously；When the lock core（1） Keyhole in when being not inserted into correct key, the sliding sleeve（3）With first polygon shaft（101）, the second polygon Axis（501）One be detached from be sequentially connected.

2. antitheft sylinder according to claim 1, it is characterised in that the sliding sleeve（3）Polygon sets of holes aperture Less than sliding sleeve（3）The length of itself set internal orifice dimension, polygon sets of holes is more than second polygon shaft（501）Length, Two polygon shafts（501）With connecting lever（5）Between be equipped with one end diameter of axle be less than the second polygon shaft（501）Shaft part.

3. antitheft sylinder according to claim 2, it is characterised in that the sliding sleeve（3）Polygon sets of holes inner wall shape At the annular groove of indent（301）, and annular groove（301）Groove width be more than second polygon shaft（501）Length.

4. antitheft sylinder according to claim 1, it is characterised in that the lock core（1）The cunning being provided symmetrically Slot, the sliding sleeve（3）It is correspondingly connected with a pair of of pin, and one of pin is only used for sliding limit.

5. antitheft sylinder according to claim 1, it is characterised in that the pin is offseted with the teeth portion of the key.