CN201003312Y - Theftproof lock core - Google Patents

Abstract

The utility model relates to a lock core for the burglarproof lock, aiming at providing a lock core which has a good burglarproof effect and a wide applicable scope as well as uneasiness for stealing. The technical proposal is that: the lock core for the burglarproof lock comprises a lock seat, a lock core rotationaly positioned on the lock seat. A plurality of pole holes are arranged in the lock core and each pole hole is provided with a slide pole and a pushing spring. The outside circumference surface of each slide pole is provided with a groove. A pressing block is positioned on the lock core, and the groove walls on two sides of the pressing block groove are provided with a plurality of groove pairs, and each pair of grooves is corresponding to a pole hole, and a pressing ball is arranged between each pair of grooves. A pressing block is positioned in the pressing block groove, and the pressing block makes the press transferred to the pressing ball. The slide pole is made to the tube shape, and a through hole rod is positioned in the slide pole. The inside wall of the lock seat is provided with a plurality of elastic ball holes, and each elastic ball hole is provided with an elastic ball and a spring. The size of the elastic ball is fit for the contracting port, and one part of the elastic ball is inserted to the contracting port end because of the press of the spring. The elastic ball hole is the bind hole.

Description

Anti-theft lock core

Technical field

The utility model relates to a kind of critical component of anti-theft device, specifically is the lock core of theftproof lock.

Background technology

Along with the fast development of economic construction, the increasing substantially of the wealth of society, the demand of anti-theft tool also increases day by day; Theftproof performance as leading role's one lockset of anti-theft tool has received concern especially.At present conventional lock structure can be by shown in Figure 10: lock core 3 is rotatably positioned in lock 1, is arranging in the lock core that several axis are arranged in conplane post hole 4; One end in these post holes is communicated with keyhole 9, and reducing is made in the aperture of the other end; Also be equipped with slidably traveller 2 in the described post hole 4 respectively and push away spring 5, the two ends that push away spring 5 apply pressure to the inwall of traveller 2 and post hole osculum respectively, and the middle part of the outer circumference surface of described each traveller 2 is shaped on around the whole circumference grooves distributed; One block slots 16 also is set on the lock core, and this groove is arranged in a side in post hole 4, and vertical with described each post axially bored line; Be symmetrically distributed with some on the cell wall of block slots 16 both sides to groove, the every pair of equal alignment of groove one post hole 4, also locating one between every pair of groove can be along the pressure pearl 10 of groove slip, these tops of pressing pearls respectively with each post hole 4 in traveller 2 aim at one by one so that with traveller 2 peripheries on grooves distributed cooperate as unlocking action; Also locate a briquetting 12 in the described block slots 16, in addition apply pressure to the two ends of briquetting by stage clip 11 respectively, and apply pressure to by briquetting that all press pearls.The length of described pressure pearl 10 differs, and determines according to unlock request.Lift on owing to press pearl to be subjected at least one roof pressure that plays the post outer circumference surface, and then pushing briquetting 12 makes it protrude in the some distances of plug face and insert in the groove 18 of lock 1 inwall, lockset can't be opened with regard to locked.The principle of unblanking is: after key inserted in the keyhole, the traveller 2 in each post hole was urged toward pushing away spring 5 directions and slides; Owing to specificly on the key be provided with different sags and crests, different travellers 2 have just moved different distances, thereby the groove of its outer circumference surface or periphery press pearl 10 to contact cooperation with each, make and respectively press pearl 10 also to move some distances respectively, the result makes briquetting 12 sink to the outer circumference surface that block slots 16 no longer protrudes in lock core fully, thereby eliminated the obstacle that lock core 2 rotates, lockset promptly is opened.

The defective of this kind lockset is: because the top of traveller 2 is positioned at keyhole, the robber adopts particular tool to insert easily and moves each traveller in the keyhole and make it arrive ad-hoc location, and then is able to the pirate of the open success.Thereby security performance is not high, can not satisfy instructions for use.

The utility model content

The purpose of this utility model provides a kind of improvement of anti-theft lock core, and this lock core should be able to overcome the deficiency of above-mentioned background technology, the characteristics that have good anti-theft effect, are difficult for stealing sled, and widely applicable.

The technical solution adopted in the utility model is: anti-theft lock core comprises lock, is rotatably positioned the lock core on lock; Arranging in the lock core that several axis are arranged in conplane post hole, an end in these post holes is communicated with keyhole, and reducing is made in the aperture of the other end; Also be equipped with slidably traveller in described each post hole respectively and push away spring, the two ends that push away spring apply pressure to the inwall of traveller and the reducing of post hole respectively, and the middle part of the outer circumference surface of described each traveller is shaped on around the whole circumference grooves distributed; One block slots also is set on the lock core, and this groove is arranged in a side in post hole, and vertical with described each post axially bored line; Be symmetrically distributed with somely to groove on the cell wall of block slots both sides, a pressure pearl that can slide along groove is also located in the every pair of equal alignment of groove one post hole between the every pair of groove, these ends of pressing pearls respectively with each post hole in traveller aim at one by one; Also locate a briquetting in the described block slots, the two ends of briquetting are subjected to the pressure of a stage clip respectively, and pressure is passed to the tail end that all press pearl; Described traveller is made tubulose, and other has a punching bar to be positioned slidably in the endoporus of tubulose traveller; Be shaped on the inwall of lock and several hoodle holes one to one, described post hole, locate slidably a hoodle and a spring in each hoodle hole respectively, the reducing in the size in hoodle hole and described post hole is close, and the part of the size of hoodle and reducing fit and hoodle is inserted the necking end in post hole owing to spring pressure.

Described hoodle hole is a blind hole.

Use the utility model, after key inserts reliably pushing traveller and punching bar move together, thereby open lockset; Wherein the motion between traveller-pressure pearl-briquetting is identical with existing lockset, and the motion of punching bar is the necking end that the pushing hoodle leaves the post hole, eliminates the locking action of hoodle to lock core.So design greatly reduces the possibility of robber's pirate of the open-because even stealer adopts particular tool, when stirring each traveller, be difficult to the punching bar in traveller and the traveller is set correctly simultaneously to ad-hoc location, and then can't open lockset; And each lock core is provided with three to five pairs of travellers and punching bar, and the possibility of all setting correctly is bordering on zero.

The utility model is by to the structural change of lock core, makes lock core have double locking function-be that briquetting locking and hoodle lock, and the possibility of pirate of the open reduces greatly, and theftproof performance is promoted significantly; Can be configured to various locksets with this lock core, and be widely used in various important places, to satisfy instructions for use, to social stability and stable contributing.

Description of drawings

Fig. 1 is a main TV structure schematic diagram of the present utility model.

Fig. 2 is that the A-A of Fig. 1 is to the sectional structure schematic diagram.

Fig. 3 is the main TV structure schematic diagram (the left apparent direction of Fig. 1) of the lock core in the utility model.

Fig. 4 is the external structure schematic diagram of lock core in the right apparent direction of Fig. 3.

Fig. 5 is the main TV structure schematic diagram of the briquetting in the utility model.

Fig. 6 is the left TV structure schematic diagram of briquetting.

Fig. 7 is the structure for amplifying schematic diagram of the traveller in the utility model.

Fig. 8 is the structural representation of the traveller housing among Fig. 7.

Fig. 9 is the structural representation of the punching bar in Fig. 7 traveller.

Figure 10 is the structural representation of existing lockset.

The specific embodiment

As shown in the figure, anti-theft lock core comprises lock 1, (lock core is shaped on latch, is shaped on the elongated slot that extends along the inner periphery direction on the lock to be rotatably positioned lock core 3 on lock, latch is inserted in and makes lock core to rotate in the elongated slot, and this is the conventional structure of general lockset); Arranging in the lock core that several axis are arranged in conplane post hole 4, an end in these post holes is communicated with keyhole 9, and reducing (reduced in aperture is positioned in the post hole so that push away spring 5 to less than the external diameter that pushes away spring 5) is made in the aperture of the other end; Also be equipped with slidably traveller 2 in described each post hole respectively and push away spring 5 and (only in a post hole, show traveller and push away spring, traveller in all the other each post holes and push away spring omit do not draw), the two ends that push away spring apply pressure to the inwall of traveller and the reducing of post hole respectively, and the middle part of the outer circumference surface of described each traveller is shaped on around whole circumference grooves distributed 2-1; One block slots 16 also is set on the lock core, and this groove is arranged in a side in post hole, and vertical with described each post axially bored line; Be symmetrically distributed with some on the cell wall of block slots both sides to groove 15, the every pair of equal alignment of groove one post hole, location one can be along the pressure pearl 10 of groove slip between every pair of groove, the arc surface of groove with press pearl periphery fit, these tops of pressing pearls respectively with each post hole in traveller (outer circumference surface of traveller) aim at one by one; Also locate a briquetting 12 in the described block slots, the two ends of briquetting are subjected to exerting pressure of a stage clip 11 respectively, and pressure is passed to described pressure pearl (apply pressure to all press the tail end of pearls); The pressure of stage clip is less than the thrust that pushes away spring, and when guaranteeing lock-out state (when no key inserts), briquetting can pressurized protrudes in the periphery of lock core and inserts groove 18 on lock 1 inner peripheral surface, makes lock core to rotate; Stage clip 11 is positioned on the lock core by stator 11-1 (being welded on the lock core).Said structure is the general structure of existing lock core.

The improvement that the utility model is done is, described traveller 2 is made tubulose, in addition a punching bar 2-2 is positioned in the tubulose endoporus of traveller slidably; Be shaped on the inwall of lock that (blind hole is made in this hole in several hoodle holes 8 one to one with described post hole, openend is aimed at lock core, to improve anti-theft effect), locate slidably hoodle 6 and a spring 7 (only show hoodle 6 and spring 7 in a hoodle hole, hoodle all the other each hoodle holes in and spring omission are not drawn) in each hoodle hole respectively; The reducing in the size in hoodle hole and described post hole is close, the diameter of hoodle is slightly smaller than the aperture of reducing, make the part of hoodle insert the necking end in post hole owing to spring pressure, the other end of hoodle is subjected to the restriction of punching bar again, can not all inject the post hole, can only be positioned between lock core and the lock, and keep this lock-out state that lock core is made to rotate (being no key insertion state this moment).The length of punching bar determines that as required general requirements is that the punching bar is subjected to the roof pressure of key after key inserts, and the other end pushes up hoodle 6 from the post hole (the resilience hole of bead, top) just, thereby has eliminated the locking action to lock core, has reached the purpose of unblanking.General, the length of described punching bar is less than the length in post hole.

After like this improvement, to the not influence that opens the lock with the key, pushing traveller and punching bar move together simultaneously afterwards in the key insertion; The difficulty that stealer is unblanked then significantly increases, because stealer even if can stir traveller, also can't be stirred the punching bar when adopting special tool to steal unlocking tool; Steal action thereby effectively stoped.

Adopt the formulated theftproof lock of the utility model, making lockset have double locking function one is briquetting locking and hoodle locking, thereby has intact theftproof performance, and is fit to make various special-purpose theft-proof lock tools.For example, the tire theftproof lock that adopts the utility model to be mixed with has reliable antitheft effect.

Claims (2)

1, anti-theft lock core comprises lock (1), is rotatably positioned the lock core (3) on lock; Arranging in the lock core that several axis are arranged in conplane post hole (4), an end in these post holes is communicated with keyhole (9), and reducing is made in the aperture of the other end; Also be equipped with slidably traveller (2) in described each post hole respectively and push away spring (5), the two ends that push away spring apply pressure to the inwall of traveller and the reducing of post hole respectively, and the middle part of the outer circumference surface of described each traveller is shaped on around whole circumference grooves distributed (2-1); One block slots (16) also is set on the lock core, and this groove is arranged in a side in post hole, and vertical with described each post axially bored line; Be symmetrically distributed with somely to groove (15) on the cell wall of block slots both sides, a pressure pearl (10) that can slide along groove is also located in the every pair of equal alignment of groove one post hole between the every pair of groove, these ends of pressing pearls respectively with each post hole in traveller aim at one by one; Also locate a briquetting (12) in the described block slots, the two ends of briquetting are subjected to the pressure of a stage clip (11) respectively, and pressure is passed to the tail end that all press pearl; It is characterized in that described traveller makes tubulose, other has a punching bar (2-2) to be positioned slidably in the endoporus of tubulose traveller; Be shaped on the inwall of lock and several hoodle holes (8) one to one, described post hole, locate slidably a hoodle (6) and a spring (7) in each hoodle hole respectively, the reducing in the size in hoodle hole and described post hole is close, and the part of the size of hoodle and reducing fit and hoodle is inserted the necking end in post hole owing to spring pressure.

2, anti-theft lock core according to claim 1 is characterized in that described hoodle hole (8) is a blind hole.

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