CN102889025A - Pick-proof lock cylinder - Google Patents
Pick-proof lock cylinder Download PDFInfo
- Publication number
- CN102889025A CN102889025A CN2012103969060A CN201210396906A CN102889025A CN 102889025 A CN102889025 A CN 102889025A CN 2012103969060 A CN2012103969060 A CN 2012103969060A CN 201210396906 A CN201210396906 A CN 201210396906A CN 102889025 A CN102889025 A CN 102889025A
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- pin
- lock core
- lock cylinder
- key
- tooth
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- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 239000008358 core component Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention relates to a pick-proof lock cylinder, and belongs to the technical field of locksets. The pick-proof lock cylinder comprises a key, an inner lock cylinder and an outer lock cylinder; the inner lock cylinder is arranged in the outer lock cylinder; the key is matched with the inner lock cylinder; a spring II, a gear, a rack and a lower pin II are arranged in the inner lock cylinder; the lower pin I and the lower pin II are arranged in the inner lock cylinder by pin slots arranged at the upper inner side and the lower inner side of the inner lock cylinder; one side of the rack is connected with the inner lock cylinder by the spring II; the gear is engaged with the rack; a rack lower tooth arranged at the lower side of the rack is matched with the lower pin I; a key upper tooth arranged at the upper side of the key is matched with the lower pin II; the upper pin I, the spring I and the upper pin II are arranged in the outer lock cylinder; the upper pin I and the upper pin II are respectively arranged in the pin slots which are arranged at the upper inner side and the lower inner side of the outer lock cylinder. The pick-proof lock cylinder can prevent a lawless person with tools from directly contacting one central parts of the lock cylinder, is simple in structure, easy to manufacture and high in practicability.
Description
Technical field
The present invention relates to a kind of lock core, particularly a kind of prizing-proof lock core belongs to lock technology field.
Background technology
The corresponding lock of key, current social, lock has become people and has preserved the personal effects, antitheft important tool.When inserting key, a series of recesses on the key can be with pin to upwards pushing up to some extent, if key is not right, pin still is transverse in internal cylinder and the outer lock core on the great majority in the lock, and internal cylinder can not be rotated; Correct key can be each pin to upper top just to a position, just match (this position is called shear line) with the junction of interior outer lock core at the tie point of the upper bottom pin of this position.In other words, ejector pin is so that all upper pins are in outer lock core fully on the key, and all bottom pins rest in the internal cylinder fully simultaneously, and at this moment, without any pin with inside and outside lock core card together, internal cylinder can freely be rotated.
Some lawless persons grasp by the structural principle to lock, have found out the method for a cover picking lock.Although picklock is varied, something in common all is that instrument is inserted lockhole, utilizes the instruments such as crowbar and torque spanner to operate, to open lock.Mechanical lock of a great variety, but basic principle is similar.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can prevent effectively that the lawless person from utilizing instrument directly to contact the prizing-proof lock core of one of lock core core component, the problem of easily being opened by picklock to overcome existing lock.
The present invention realizes by following technical scheme: a kind of prizing-proof lock core comprises key 1, internal cylinder 4, outer lock core 16; Internal cylinder 4 is placed in the outer lock core 16, key 1 cooperates with internal cylinder 4, it is characterized in that: be installed on spring II 12 in the internal cylinder 4, gear, tooth bar, bottom pin I 8, bottom pin II 15, bottom pin I 8, bottom pin II 15 is installed in the internal cylinder 4 by the internal cylinder pin grooves that the inboard is provided with about in the of 4, tooth bar one side is connected with internal cylinder 4 by spring II 12, tooth bar is subject to spring force left all the time, so that key 1 is subjected to the effect of resistance when inserting, and when extracting, be subjected to the effect of thrust, the wheel and rack engagement, bottom pin I 8 is avoided in the existence of wheel and rack, upper pin I 9 is directly exposed in the lockhole, can prevent that the lawless person from utilizing instrument directly to touch one of the core component bottom pin I 8 of lock core, upper pin I 9, the tooth bar lower tooth 7 that the tooth bar downside is provided with cooperates with bottom pin I 8, the on the key tooth 2 that key 1 upside is provided with cooperates with bottom pin II 15, be installed on pin I 9 in the outer lock core 16, spring I 10, upper pin II 14, upper pin I 9, upper pin II 14 is installed in the outer lock core pin grooves that the inboard is provided with about in the of 16 by spring I 10 respectively.
Described outer lock core 16 is connected by the steady pin 11 that is installed in the outer lock core 16 with internal cylinder 4, separates with outer lock core 16 when steady pin 11 is used for preventing internal cylinder 4 rotation.Tooth 5 meshes with the key lower tooth 3 that key 1 downside is provided with on the gear teeth that described gear upside is provided with.Tooth 6 meshes with the gear lower tooth 13 that the gear downside is provided with on the tooth bar that described tooth bar upside is provided with.Described bottom pin I 8 one ends are connected with spring I 10, and the other end contacts with upper pin I 9, and bottom pin II 15 1 ends are connected with spring I 10, and the other end contacts with upper pin II 14.Described tooth bar left side is provided with the unnecessary gear teeth, when preventing that the lawless person from using picklock or incorrect key unlocking, the distance of tooth bar move left and right is indefinite, and tooth bar is dropping place correctly, and the tie point of upper and lower pin and the junction of interior outer lock core are not matched.
A kind of operating principle of prizing-proof lock core is: when using correct key unlocking, insert key 1, a series of recesses of tooth 2 are with bottom pin II 15 upwards top in various degree on the key, key 1 can just upward push up each bottom pin II 15 to a position, and the upper pin II 14 of this position, bottom pin II 15 tie points just match with the junction of interior outer lock core, namely on the key on the tooth 2 top bottom pin II 15 so that on all pin II 14 be in fully in the outer lock core 16, simultaneously, all bottom pin II 15 rest in the internal cylinder 4 fully.At this moment, without any bottom pin II 15 with inside and outside lock core card together; Meanwhile, tooth 5 rotates on key lower tooth 3 driven gears, the effect that tooth 5 overcomes the spring force of spring II 12 on the gear rotates counterclockwise, so that the effect that tooth 6 overcomes (left) spring force on the gear lower tooth 13 fluctuation tooth bars moves right, thereby tooth bar lower tooth 7 cooperates with each bottom pin I 8, control bottom pin I 8, the position of upper pin I 9 in pin grooves, so that in the bottom pin I 8 of this position, upper pin I 9 tie points just match with the junction of interior outer lock core, even pin I 9 is in the outer lock core 16 fully on all, all bottom pin I 8 rest in the internal cylinder 4 fully, at this moment, without any bottom pin I 8 with inside and outside lock core card together.In addition, the tooth bar left side is designed with the unnecessary gear teeth, only have when using correct key 1 to unblank, the distance of the move left and right of tooth bar is fixed, tooth bar is dropping place correctly, and the tie point of bottom pin and the junction of interior outer lock core are matched, and pin I 9, upper pin II 14 are in the outer lock core 16 fully on all at this moment, all bottom pin I 8, bottom pin II 15 rest in the internal cylinder 4 fully, and internal cylinder 4 is free to rotate.
If when using incorrect key 1 to unblank, upper pin I 9, upper pin II 14 still are transverse in internal cylinder 4 and the outer lock core 16, and internal cylinder 4 can not be rotated; Simultaneously, because the tooth bar left side is designed with the unnecessary gear teeth, the distance of tooth bar move left and right is indefinite, tooth bar is dropping place correctly, make at the tie point of the upper bottom pin of this position and the junction of interior outer lock core and do not match, namely go up pin I 9, upper pin II 14 still is transverse in internal cylinder 4 and the outer lock core 16, and internal cylinder 4 can not be rotated.
The present invention has following beneficial effect:
1, the existence of wheel and rack can avoid the lawless person to utilize instrument directly to touch one of core component of lock core;
2, the unnecessary gear teeth that are provided with on the left of the tooth bar can't be unblanked in the time of can avoiding inapplicable correct key;
3, simple in structure, easy manufacturing, practical.
Description of drawings
Fig. 1 is that key of the present invention inserts the pre-structure schematic diagram;
Fig. 2 is structural representation after key of the present invention inserts.
Each label is among the figure: 1: key, 2: tooth, 3 on the key: key lower tooth, 4: inner lock core, 5: tooth, 6 on the gear: tooth, 7 on the tooth bar: tooth bar lower tooth, 8: bottom pin I, 9: upper pin I, 10: spring I, 11: steady pin, 12: spring II, 13: gear lower tooth, 14: upper pin II, 15: bottom pin II, 16: outer lock core.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described, but content of the present invention is not limited to described scope.
Embodiment 1: shown in Fig. 1-2, a kind of prizing-proof lock core comprises key 1, internal cylinder 4, outer lock core 16; Internal cylinder 4 is placed in the outer lock core 16, key 1 cooperates with internal cylinder 4, it is characterized in that: be installed on spring II 12 in the internal cylinder 4, gear, tooth bar, bottom pin I 8, bottom pin II 15, bottom pin I 8, bottom pin II 15 is installed in the internal cylinder 4 by the internal cylinder pin grooves that the inboard is provided with about in the of 4, tooth bar one side is connected with internal cylinder 4 by spring II 12, the wheel and rack engagement, the tooth bar lower tooth 7 that the tooth bar downside is provided with cooperates with bottom pin I 8, the on the key tooth 2 that key 1 upside is provided with cooperates with bottom pin II 15, be installed on pin I 9 in the outer lock core 16, spring I 10, upper pin II 14, upper pin I 9, upper pin II 14 is installed in the outer lock core pin grooves that the inboard is provided with about in the of 16 by spring I 10 respectively.
Claims (6)
1. a prizing-proof lock core comprises key (1), internal cylinder (4), outer lock core (16); Internal cylinder (4) is placed in the outer lock core (16), key (1) cooperates with internal cylinder (4), it is characterized in that: be installed on spring II (12) in the internal cylinder (4), gear, tooth bar, bottom pin I (8), bottom pin II (15), bottom pin I (8), bottom pin II (15) by internal cylinder (4) up and down the inboard pin grooves that is provided be installed in the internal cylinder (4), tooth bar one side is connected with internal cylinder (4) by spring II (12), the wheel and rack engagement, the tooth bar lower tooth (7) that the tooth bar downside is provided with cooperates with bottom pin I (8), the on the key tooth (2) that key (1) upside is provided with cooperates with bottom pin II (15), be installed on pin I (9) in the outer lock core (16), spring I (10), upper pin II (14), upper pin I (9), upper pin II (14) is installed in outer lock core (16) pin grooves that the inboard is provided with up and down by spring I (10) respectively.
2. prizing-proof lock core according to claim 1, it is characterized in that: described outer lock core (16) is connected by the steady pin (11) that is installed in the outer lock core (16) with internal cylinder (4).
3. prizing-proof lock core according to claim 1 is characterized in that: key lower tooth (3) engagement that tooth (5) and key (1) downside are provided with on the gear teeth that described gear upside is provided with.
4. prizing-proof lock core according to claim 1 is characterized in that: gear lower tooth (13) engagement that tooth (6) and gear downside are provided with on the tooth bar that described tooth bar upside is provided with.
5. prizing-proof lock core according to claim 1, it is characterized in that: described bottom pin I (8) one ends are connected with spring I (10), the other end contacts with upper pin I (9), and bottom pin II (15) one ends are connected with spring I (10), and the other end contacts with upper pin II (14).
6. prizing-proof lock core according to claim 1 is characterized in that: be provided with the unnecessary gear teeth on the left of the described tooth bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210396906.0A CN102889025B (en) | 2012-10-18 | 2012-10-18 | Pick-proof lock cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210396906.0A CN102889025B (en) | 2012-10-18 | 2012-10-18 | Pick-proof lock cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102889025A true CN102889025A (en) | 2013-01-23 |
| CN102889025B CN102889025B (en) | 2014-12-31 |
Family
ID=47532689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210396906.0A Expired - Fee Related CN102889025B (en) | 2012-10-18 | 2012-10-18 | Pick-proof lock cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102889025B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5265452A (en) * | 1991-09-20 | 1993-11-30 | Mas-Hamilton Group | Bolt lock bolt retractor mechanism |
| CN201343901Y (en) * | 2009-02-16 | 2009-11-11 | 魏彦卯 | Anti-theft lock cylinder and key |
| CN201474422U (en) * | 2009-08-14 | 2010-05-19 | 陈世权 | Simple and practical lockset |
| CN202850638U (en) * | 2012-10-18 | 2013-04-03 | 昆明理工大学 | Anti-picking lock cylinder |
-
2012
- 2012-10-18 CN CN201210396906.0A patent/CN102889025B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5265452A (en) * | 1991-09-20 | 1993-11-30 | Mas-Hamilton Group | Bolt lock bolt retractor mechanism |
| CN201343901Y (en) * | 2009-02-16 | 2009-11-11 | 魏彦卯 | Anti-theft lock cylinder and key |
| CN201474422U (en) * | 2009-08-14 | 2010-05-19 | 陈世权 | Simple and practical lockset |
| CN202850638U (en) * | 2012-10-18 | 2013-04-03 | 昆明理工大学 | Anti-picking lock cylinder |
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| Publication number | Publication date |
|---|---|
| CN102889025B (en) | 2014-12-31 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20161018 |