CN2816262Y - Antitheft lock of preventing quick unlocking - Google Patents
Antitheft lock of preventing quick unlocking Download PDFInfo
- Publication number
- CN2816262Y CN2816262Y CN 200520063348 CN200520063348U CN2816262Y CN 2816262 Y CN2816262 Y CN 2816262Y CN 200520063348 CN200520063348 CN 200520063348 CN 200520063348 U CN200520063348 U CN 200520063348U CN 2816262 Y CN2816262 Y CN 2816262Y
- Authority
- CN
- China
- Prior art keywords
- lock
- sliding block
- dead bolt
- groove
- big dead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model provides an antitheft lock of preventing quick unlocking, which can prevent locksets from being unlocked by using illegal techniques of quick unlocking devices, etc., in order to improve antitheft effect and reduce property loss. The utility model is realized by the following structure that the antitheft lock of preventing quick unlocking comprises a lock body as a casing, and an inner cavity of the lock body is provided with a lock core, a big lock tongue, a shifting fork, a positioning slide block and a slide block spring, wherein the big lock tongue can retract into and extend from the inner cavity of the lock body; the positioning slide block is fixed to the big lock tongue, and moves together with the big lock tongue in a reciprocating mode; the shifting fork is fixed to the tail end of the lock core and rotates following the lock core; the big lock tongue is provided with one or more transmission grooves, and the shifting fork can be clamped in the transmission grooves to shift the transmission grooves so that the big lock tongue can move. Moreover, the antitheft lock is also provided with a positioning device, wherein the positioning device comprises grooves arranged in the positioning slide block, trapezoidal steps and a positioning pin.
Description
Technical field
The utility model relates to a kind of theftproof lock that prevents quickly unlocking, especially prevent that big dead bolt from returning in the lock body and the theftproof lock mechanism of the lockset that is opened under quickly unlocking inertia situation, be mainly used in household security door, burglary insurance lockset cashier's office in a shop etc., be suitable for fields such as family, hotel, office's safe-guard door lock and use.
Background technology
At present, the theftproof lock major part of being sold on the market also all be machinery have the sort of of big or small dead bolt, it is simple in structure, price is lower, and is very popular.But because the design defect of blocking mechanism, the inertia when the feasible person that illegally do not unblank can utilize quickly unlocking is once unblanked by the restriction of blocking mechanism.Concretely, common theftproof lock is made of lock body, lock core, shift fork, groove positioning sliding block, big dead bolt etc., the general billiards lock structures that adopt of lock core more, blocking lock core by pellet shot from a slingshot makes it can not rotate locking, and the mode that big dead bolt adopts segmentation to move more cooperates the lock core multi-turn to rotate to improve the ability of illegally unblanking of preventing, its principle be utilize with groove positioning sliding block that big dead bolt links to each other in a plurality of grooves, when big dead bolt telescopic moving, alignment pin repeatedly is trapped in the detent, can makes pellet shot from a slingshot in the lock core have an opportunity to check the once more legitimacy of key.The blocking mechanism of common theftproof lock adopts the groove detent mechanism of level, if lock core is turned to a certain degree with skilled unlocking, utilize quickly unlocking device or quick rotation lock core again, alignment pin is slipped over from a plurality of grooves of detent mechanism, owing to there is not the indentation limitations of detent mechanism, lock core can quick rotation, makes pellet shot from a slingshot in the lock body can't be embedded in the lock core and stops being rotated further of lock core, thereby can open theftproof lock.
Summary of the invention
The purpose of this utility model, provide a kind of theftproof lock that prevents quickly unlocking, concretely, provide a kind of improved groove detent mechanism that is used on the big dead bolt, be suitable for common theftproof lock, strengthen the theftproof performance of theftproof lock, other lock that also is fit to electromechanical can significantly reduce the possibility of technical unlocking lockset, prevents to use non-law technology such as quickly unlocking device to open lockset, improve anti-theft effect, reduce property loss.
The utility model is realized by following structure: a kind of theftproof lock that prevents quickly unlocking, comprise lock body as shell, also be provided with lock core, big dead bolt, shift fork, positioning sliding block and sliding block spring in the inner chamber of described lock body, described big dead bolt regracting and the inner chamber that stretches out described lock body; Described positioning sliding block is fixed on the described big dead bolt, and is back and forth movable with big dead bolt; Described shift fork is fixed on the end of lock core, rotates with lock core; On the described big dead bolt one or more transmission grooves are arranged, described shift fork can snap in the described transmission groove, stirs transmission groove big dead bolt is moved; Wherein, described theftproof lock also is provided with positioner, and described positioner includes groove, terraced steps and the alignment pin of the inside setting of described positioning sliding block.
Advantage of the present utility model is: owing to be provided with terraced steps on positioning sliding block, making need afterburningly again rotate behind the moving circle of lock core revolution just to make the terraced steps of positioning sliding block pass through alignment pin, alignment pin is fallen in the groove of positioning sliding block, finish once moving of big dead bolt, avoided in common theftproof lock positioning sliding block since groove at a horizontal plane, drive the inertia that positioning sliding block produced by the quick rotation lock core, make positioning sliding block disposable arrive by alignment pin terminal, thereby make big dead bolt be fully retracted lock body and unblank.The utility model uses the disposable situation of opening theftproof lock of quickly unlocking instrument to take place after can effectively avoiding utilizing skilled unlocking, only just can improve the performance of illegally unblanking by a modular construction that changes in the former theftproof lock, and cost is low, and production and processing is easy.
Description of drawings
Fig. 1 is a kind of structural representation that prevents the theftproof lock of quickly unlocking of the utility model;
Fig. 2 is a kind of positioning sliding block structural representation that prevents the theftproof lock of quickly unlocking of the utility model;
Half schematic diagram of big dead bolt indentation among the theftproof lock embodiment that Fig. 3 prevents quickly unlocking for the utility model is a kind of;
The schematic diagram that big dead bolt is fully retracted among the theftproof lock embodiment that Fig. 4 prevents quickly unlocking for the utility model is a kind of.
Marginal data:
1 lock body, 2 lock cores, 3 big dead bolts, 4 shift forks, 5 positioning sliding blocks, 6 alignment pins, 7 sliding block springs, 8 grooves, 9 terraced steps, 10 transmission grooves
The specific embodiment
A kind of theftproof lock that prevents quickly unlocking provided by the utility model can effectively prevent technical quickly unlocking, and is simple in structure, is applicable to that theftproof lock, door lock etc. need lock core to rotate the occasion that multi-turn just can be unblanked.
Embodiment of the present utility model is: a kind of theftproof lock that prevents quickly unlocking, comprise lock body, lock core, big dead bolt, shift fork, positioning sliding block, alignment pin, and wherein, place, the location of positioning sliding block is groove and terraced steps.Fluted cooperation alignment pin activity in the described positioning sliding block, described groove and terraced steps are adjacent.Described positioning sliding block is fixed on the big dead bolt, and is back and forth movable with big dead bolt.On the described big dead bolt transmission groove is arranged, described shift fork is stirred transmission groove moves big dead bolt.Described shift fork is fixed on the end of lock core, rotates with lock core.Described lock core can be the common spring lock core.
The operating principle of the utility model embodiment is: rotational lock core drives shift fork and rotates, shift fork is absorbed in the transmission groove on the big dead bolt, driving big dead bolt moves, big dead bolt and positioning sliding block are fixed together, so driving positioning sliding block again moves, positioning sliding block under the stopping of alignment pin downwards the extruding sliding block spring and downwards and the side move, alignment pin is fallen in the groove of next positioning sliding block, finish the once mobile of big dead bolt; So repeatedly, stretch out or indentation the purpose that reaches locking and unblank fully up to big dead bolt.Because the groove of positioning sliding block is not on a horizon, be on the face of each terraced steps, all must stop in the groove of alignment pin on each terraced steps after making positioning sliding block move at every turn, must be the more afterburning shift fork that rotates could drive big dead bolt and moves, positioning sliding block is moved once more so that the terraced steps that alignment pin is crossed on the positioning sliding block reaches next groove, like this, just can prevent to produce inertia and make that alignment pin is disposable crosses grooves all in the positioning sliding block, thereby unblank because of the quick rotation shift fork.
Embodiment:
As Fig. 1, shown in Figure 2, a kind of theftproof lock that prevents quickly unlocking comprises the lock body 1 as shell, also be provided with lock core 2, big dead bolt 3, shift fork 4, positioning sliding block 5 and sliding block spring 7 in the inner chamber of described lock body 1, described big dead bolt 3 regractings and the inner chamber that stretches out described lock body 1; Described positioning sliding block 5 is fixed on the big dead bolt 3, and is back and forth movable with big dead bolt 3; Described shift fork 4 is fixed on the end of lock core 2, rotates with lock core 2; One or more transmission grooves 10 are arranged on the described big dead bolt 3, and described shift fork 4 can snap in the described transmission groove 10, stirs transmission groove 10 big dead bolt 3 is moved; Wherein, described theftproof lock also is provided with positioner, and described positioner includes groove 8, terraced steps 9 and the alignment pin 6 of the inside setting of described positioning sliding block 5.
Described terraced steps 9 is for being arranged at one or more surfaces bucking ladder terrace on the different level of being in of described positioning sliding block 5 inner chamber bottom surfaces.
Described groove 8 is for being arranged on the following concave curvatures groove at terraced steps 9 two ends, and the quantity of described groove 8 is Duoed one than the step surface number of described terraced steps 9.
Described alignment pin 6 is clamped in one of them groove 8.
Described lock core 2 is common spring lock cores.
Described lock core 2 is positioned at described big dead bolt 3 tops, and described transmission groove 10 is that upper surface from big dead bolt 3 is to recessed curved surface groove.
Described sliding block spring 7 is fixed on the lock body 1, and flexibly is supported in described positioning sliding block 5 belows.
As Fig. 3, shown in Figure 4, when using legal key normally to unblank, key rotation lock core 2 drives shift fork 4 and rotates, and shift fork 4 is absorbed in the transmission groove 10 on the big dead bolt 3, driving big dead bolt 3 moves, big dead bolt 3 is fixed together with positioning sliding block 5, moves so drive positioning sliding block 5 again, and move downwards by extruding sliding block spring 7 and downward and side under the stopping of alignment pin 6 for positioning sliding block 5, alignment pin 6 is fallen in the groove 8 of next positioning sliding block 5, finish once moving of big dead bolt 3; So repeatedly, stretch out or indentation the purpose that reaches locking and unblank fully up to big dead bolt 3.Because the groove 8 of positioning sliding block 5 is not on a horizon, be on the face of each terraced steps 9, all must make alignment pin 6 groove 8 on each terraced steps 9 in after making positioning sliding block 5 move at every turn and stop, must be the more afterburning shift fork 4 that rotates could drive big dead bolt 3 and moves, and makes positioning sliding block 5 mobile once more so that the terraced steps 9 that alignment pin 6 is crossed on the positioning sliding block 5 reaches next groove 8.Owing to use legal key, each lock core 2 rotates the rotation that can continue next time behind the circle, can not make the stuck and lock of not opening of lock core 2.
For illegal skilled unlocking, owing to do not have legal key in the lock core 2, even can make lock core 2 rotate a circle, but because the barrier effect of 9 pairs of alignment pins 6 of positioning sliding block 5 terraced steps is arranged, make big dead bolt 3 to stop at groove 8 places of next positioning sliding block 5, it is stuck to make pellet shot from a slingshot in the lock core 2 have an opportunity, and stops lock core 2 to be rotated further.Even use the instrument of quickly unlocking device and so on, though lock core 2 can be not stuck, but because stopping of positioning sliding block 5 terraced steps 9 arranged, stoped to produce inertia because of quick rotation shift fork 4 and make that alignment pin 6 is disposable to be crossed groove all in the positioning sliding block 58 and unblank.
Above-mentioned listed specific implementation is nonrestrictive, concerning the person skilled in the art of this area, in not departing from the utility model scope, can carry out various improvement and variation.
Claims (7)
1, a kind of theftproof lock that prevents quickly unlocking comprises the lock body as shell, also is provided with lock core, big dead bolt, shift fork, positioning sliding block and sliding block spring in the inner chamber of described lock body, described big dead bolt regracting and the inner chamber that stretches out described lock body; Described positioning sliding block is fixed on the described big dead bolt, and is back and forth movable with big dead bolt; Described shift fork is fixed on the end of lock core, rotates with lock core; On the described big dead bolt one or more transmission grooves are arranged, described shift fork can snap in the described transmission groove, stirs transmission groove big dead bolt is moved; It is characterized in that described theftproof lock also is provided with positioner, described positioner includes groove, terraced steps and the alignment pin of the inside setting of described positioning sliding block.
2, a kind of theftproof lock that prevents quickly unlocking according to claim 1 is characterized in that, described terraced steps (9) is for being arranged at one or more surfaces bucking ladder terrace on the different level of being in of described positioning sliding block (5) inner chamber bottom surface.
3, a kind of theftproof lock that prevents quickly unlocking according to claim 1 and 2, it is characterized in that, described groove (8) is for being arranged on the following concave curvatures groove at terraced steps (9) two ends, and the quantity of described groove (8) is Duoed one than the step surface number of described terraced steps (9).
4, a kind of theftproof lock that prevents quickly unlocking according to claim 3 is characterized in that, described alignment pin (6) is clamped in one of them groove (8).
5, a kind of theftproof lock that prevents quickly unlocking according to claim 1 is characterized in that, described lock core (2) is the common spring lock core.
6, a kind of theftproof lock that prevents quickly unlocking according to claim 4 is characterized in that, described lock core (2) is positioned at described big dead bolt (3) top, and described transmission groove (10) is that upper surface from big dead bolt (3) is to recessed curved surface groove.
7, a kind of theftproof lock that prevents quickly unlocking according to claim 1 is characterized in that, described sliding block spring (7) is fixed on the lock body (1), and flexibly is supported in described positioning sliding block (5) below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520063348 CN2816262Y (en) | 2005-08-24 | 2005-08-24 | Antitheft lock of preventing quick unlocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520063348 CN2816262Y (en) | 2005-08-24 | 2005-08-24 | Antitheft lock of preventing quick unlocking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816262Y true CN2816262Y (en) | 2006-09-13 |
Family
ID=36996068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520063348 Expired - Lifetime CN2816262Y (en) | 2005-08-24 | 2005-08-24 | Antitheft lock of preventing quick unlocking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816262Y (en) |
-
2005
- 2005-08-24 CN CN 200520063348 patent/CN2816262Y/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2816262Y (en) | Antitheft lock of preventing quick unlocking | |
| CN2806674Y (en) | Clutch for lock and electric control lock having same | |
| CN2813837Y (en) | Door bolt mechanism on safe | |
| CN1730874A (en) | Lock with double lock pins | |
| CN2399485Y (en) | Electronic lock mechanism of anti-theft door | |
| CN101235686B (en) | Lock core structure | |
| CN2861408Y (en) | Theft-proof lock with clutch mechanism | |
| CN2361777Y (en) | Three-way automatic locking anti-theft door lock | |
| CN2707924Y (en) | Safe door sheet locking mechanism | |
| CN2531065Y (en) | Three-way three-section anti-theft fireproof emergnecy lock | |
| CN2644588Y (en) | Key self-adhesive type magnetic control lock | |
| CN2693911Y (en) | Electrical cabinet door lock | |
| CN2563260Y (en) | Card inserting mechanical lock | |
| CN1779207A (en) | Automatically and multi-directionally linkage-lockable door of banknotes delivering vehicle | |
| CN2242964Y (en) | Gear-driven four-way multi-bolt synchronous interlocking device for anti-theft door | |
| CN202000762U (en) | Lock | |
| CN2695560Y (en) | Multi-lock linkage device | |
| CN200992849Y (en) | Two-section lock core and key anti-theft lock with core-through, built-in code balls | |
| CN103485590B (en) | A kind of anti-theft gate lock | |
| CN2734926Y (en) | Linkage mechanism for quickly locking and unlocking door lock | |
| CN1216222C (en) | Hiden pile master and key with flexible driving arm | |
| CN200964731Y (en) | Double-control self-coding cipher lock | |
| CN1219960C (en) | Burglary-resisting lock capable of preventing technical unlocking | |
| CN2654802Y (en) | Antipick lock | |
| CN214697325U (en) | Multifunctional intelligent lock body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150824 Granted publication date: 20060913 |
|
| EXPY | Termination of patent right or utility model |