CN105735763A - Anti-theft lock with main safety catch restricted by limiting pin - Google Patents
Anti-theft lock with main safety catch restricted by limiting pin Download PDFInfo
- Publication number
- CN105735763A CN105735763A CN201610065034.8A CN201610065034A CN105735763A CN 105735763 A CN105735763 A CN 105735763A CN 201610065034 A CN201610065034 A CN 201610065034A CN 105735763 A CN105735763 A CN 105735763A
- Authority
- CN
- China
- Prior art keywords
- pin
- lock
- spring
- pilot hole
- main lock
- 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.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
- E05B27/0057—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
- E05B17/2007—Securing, deadlocking or "dogging" the bolt in the fastening position
- E05B17/2023—Loose pins, screws, or the like; Portable devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
- E05B27/0003—Details
- E05B27/0017—Tumblers or pins
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/14—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other
- E05B63/146—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other locks with two or more bolts, each bolt itself being a tumbler
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses an anti-theft lock with a main safety catch restricted by a limiting pin. The anti-theft lock comprises a shell, a lock core, a lock tongue and the main safety catch, and further comprises a lock-up mechanism, wherein the lock-up mechanism comprises a moving pin, a clamping pin and the limiting pin; the moving pin is arranged in the shell, and can slide forward and back; the front end of the moving pin is connected with the shell through a first spring; a guiding hole is formed in the moving pin; the clamping pin comprises a first pin column, a second pin column and a third pin column; one end of the first pin column is propped against the side wall of the lock core; the other end of the first pin column is sleeved in the guiding hole; one end of the second pin column is sleeved in the guiding hole and propped against the other end of the first pin column; one end of the third pin column is propped against the other end of the second pin column; the other end of the third pin column is connected with the shell through a second spring; the front end of the limiting pin is connected with the rear end of the moving pin through a connecting plate; and when the main safety catch is in a lock-up working state, the rear end of the limiting pin corresponds to the tail end of the main safety catch. According to the anti-theft lock provided by the invention, the lock core can be firmly and reliably locked up; and besides, the anti-theft lock is simple in structure and low in manufacturing cost.
Description
Technical field
The present invention relates to theftproof lock field, limit the theftproof lock of main lock particularly to a kind of spacer pin.
Background technology
Theftproof lock is generally made up of lock body, rotation lock core, drive mechanism, main lock and latch bolt etc..Rotating lock core is critical component, and it includes rotation lock core marble group.The action and the movement range that rotate lock core marble are determined by key, only run into correct key, rotate lock core marble and just can move to tram, and lock core just can rotate or the motion of other form, and then drives drive mechanism to complete unlocking action.Theftproof lock on market, change in any case, the design of most locksets has a common feature, namely before unlocking mechanism action, each pellet group is relevant to other to be unblanked to be in all the time between actuator and contacts with each other or certain contact status, making technical opening lockset there is probability, theftproof performance is not high.
In order to improve the protection level of theftproof lock, Most designers is all done the best and is made lock core internal structure complicate, it is novel unique to strive, strengthen size of key, its shortcoming is in that to increase required precision and manufacture difficulty, and cost also improves therewith, and do so may result in mechanical strength and reduces, need again to prevent from destroying with elevating mechanism intensity with special quality material, improve manufacturing cost further.The anti-technical opening ability of lockset also having is relatively strong, but unlocking operation process is comparatively laborious.
It is disclosed in the information of this background section and is merely intended to increase the understanding of the general background to the present invention, and be not construed as admitting or imply in any form that this information structure is for prior art that persons skilled in the art are known.
Summary of the invention
It is an object of the invention to provide a kind of spacer pin and limit the theftproof lock of main lock, thus overcoming the shortcoming that structure is complicated and manufacturing cost is higher of theftproof lock that existing protection level is high.
For achieving the above object, the invention provides a kind of spacer pin and limit the theftproof lock of main lock, it includes housing, lock core, dead bolt and main lock, wherein, also include a locking mechanism, described locking mechanism includes: removable pin, and it is can be arranged in described housing in the way of slide anteroposterior, and this removable pin is parallel to described lock core；The front end of this removable pin and described housing are attached by one first spring；This removable pin is provided with a pilot hole being perpendicular to its axis；Bayonet lock, comprising: the first pin, its one end acts against on the sidewall of described lock core, and the other end of this first pin is movably set in described pilot hole；Second pin, its one end is movably set in described pilot hole and acts against the other end of described first pin；The other end of this second pin stretches out in outside described pilot hole；The length of this second pin is at least equal to the length of described pilot hole；And the 3rd pin, its one end acts against the other end of described second pin, and the other end of the 3rd pin is attached by one second spring with described housing；And spacer pin, it is can be arranged in described housing in the way of slide anteroposterior, and the rear end of the front end of this spacer pin and described removable pin is attached by a plate；When described main lock is in locking duty, the rear end of this spacer pin is corresponding with the tail end of described main lock.
Preferably, in technique scheme, being provided with a movable cotter way and a card cotter way vertical with described movable cotter way in described housing, described movable cotter way is used for installing described removable pin and described first spring, and described card cotter way is used for installing described bayonet lock and described second spring.
Preferably, in technique scheme, one end of the rear end of described removable pin and described connecting plate is fixedly connected by nut, and the other end of the front end of described spacer pin and described connecting plate is fixedly connected by nut.
Compared with prior art, there is advantages that
The present invention is when lock core is subjected to displacement by external force destruction, spacer pin is driven to be moved rearwards by by removable pin, the tail end of main lock is withstood thereby through spacer pin, main lock just can not be retreated by locked, so that dead bolt can not retreat, various unlocking tools will be unable to play a role, with can be solid and reliable locked dead bolt.The present invention sets up locking mechanism in common locking, its simple in construction and low cost of manufacture, is suitable for batch production.It addition, the present invention does not limit to is applied to antitheft door, safety cabinet, national treasury etc. other lock and be environmentally used as.
Accompanying drawing explanation
Fig. 1 is the structural representation of the locking mechanism of the theftproof lock limiting main lock according to present invention spacer pin.
Main lock is carried out locked structural representation by the spacer pin that Fig. 2 is according to the present invention.
Fig. 3 is the structural representation of the removable pin according to the present invention.
Main Reference Numerals illustrates:
1-housing, 11-activity cotter way, 12-card cotter way；2-lock core；3-dead bolt, 31-dead bolt axle, 32-latch bolt spring, 33-block, 34-pulling block；The main lock of 4-；5-lever；6-locking mechanism, 61-removable pin, 611-pilot hole, 62-the first spring, 63-bayonet lock, 631-the first pin, 632-the second pin, 633-the 3rd pin, 64-the second spring, 65-spacer pin, 66-connecting plate, 67-nut.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, it is to be understood that protection scope of the present invention is not by the restriction of detailed description of the invention.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " includes " or its conversion will be understood to comprise the element or ingredient stated at such as " comprising " or " including " etc., and does not get rid of other element or other ingredient.
Fig. 1 to Fig. 3 shows that a kind of according to the preferred embodiment of the present invention spacer pin limits the structural representation of the theftproof lock of main lock, this theftproof lock limiting main lock with spacer pin includes housing 1, lock core 2, dead bolt 3, main lock 4 and locking mechanism 6, with reference to Fig. 1 and Fig. 2, the housing 1 of theftproof lock, lock core 2, dead bolt 3 and coordinating of main lock 4 lock the same of setting with conventional, dead bolt 3 is provided with dead bolt axle 31, latch bolt spring 32, block 33, pulling block 34, it is connected by lever 5 between dead bolt 3 with main lock 4, key controls dead bolt 3 by lock core 2 and main lock 4 stretches out or returns.
Locking mechanism 6 is for locking main lock 4.With continued reference to Fig. 1, locking mechanism 6 includes removable pin 61, bayonet lock 63 and spacer pin 65, removable pin 61 is being arranged in housing 1 in the way of slide anteroposterior, and removable pin 65 is parallel to lock core 2, the front end of removable pin 61 is attached by one first spring 62 with housing 1, with reference to Fig. 3, removable pin 61 is provided with a pilot hole 611 being perpendicular to its axis.Bayonet lock 63 includes the first pin the 631, second pin 632 and the 3rd pin 633, the sidewall of lock core 2 is the face of cylinder, one end of first pin 631 acts against on the sidewall of lock core 2, and first the other end of pin 631 be movably set in pilot hole 611, one end of second pin 632 is movably set in pilot hole 611, and the second pin 632 one end of being set in pilot hole 611 acts against the other end of the first pin 631.The other end of the second pin 632 stretches out in outside pilot hole 611, and the length of the second pin 632 is at least equal to the length of pilot hole 611.3rd pin 633 one end acts against the other end of the second pin 632, and the other end of the 3rd pin 633 is attached by one second spring 64 with housing 1.Preferably, being provided with movable cotter way 11 and a card cotter way 12 vertical with movable cotter way 11 in housing 1, movable cotter way 11 is for installation activity pin 61 and the first spring 62, and the first spring 62 is located between the front end of removable pin 61 and the bottom land of movable cotter way 11.Card cotter way 12 is used for installing bayonet lock 63 and the second spring 64, and the second spring 64 is located between the other end of the 3rd pin 633 and a groove lid, and groove lid is sealed on the notch place of card cotter way 12.
With continued reference to Fig. 1, spacer pin 65 is can be arranged in housing 1 in the way of slide anteroposterior, and the rear end of the front end of spacer pin 65 and removable pin 61 is attached by a plate 66.Preferably, one end of the rear end of removable pin 61 and connecting plate 66 is fixedly connected by nut 67, and the other end of the front end of spacer pin 65 and connecting plate 66 is fixedly connected also by nut 67.With continued reference to Fig. 2, when main lock 4 is in locking duty, the rear end of spacer pin 65 is corresponding with the tail end of main lock 4, if now spacer pin 65 is moved rearwards by, just acting against the tail end of main lock 4, main lock 4 just cannot be return, to be maintained at locking duty.Preferably, the diameter of spacer pin 65 is 3mm, and the diameter of removable pin 61 is also 3mm, and the length of the second pin 632 also takes 3mm, and pilot hole 611 is arranged on removable pin 61, and its length is slightly less than the diameter of spacer pin 65, is namely slightly less than 3mm.
The present invention is when normal operating condition, lock core 2 is just to the first pin 631, second spring 64 is in compressive state, and first pin 631 and the second pin 632 part be sheathed in the pilot hole 611 of removable pin 61, first spring 62 is also at compressive state, the rear end of spacer pin 65 is positioned at the front of main lock 4, and it does not contact with main lock 4, does not affect the normal operation of main lock 4.When dead bolt 3 and main lock 4 be in locking duty under lock core 2 destroyed by force by external force time, lock core 2 can offset, thus being no longer aligned with the first pin 631, then the second spring 64 will eject three pins together to the side at lock core 2 place, when 632 the first pins 631 of the second pin eject pilot hole 611 completely, under the effect of the first spring 62, removable pin 61 is just moved rearwards by together with the second pin 632, spacer pin 65 is also with being moved rearwards by, to act against the tail end of main lock 4, thus locked main lock 4, to avoid lock to be forcibly opened, reach antitheft purpose.Therefore, the present invention is stuck in the tail end of main lock 4 by spacer pin 65, and main lock 4 and dead bolt 3 just can not be return, and to be maintained at locking state, various unlocking tools will be unable to play a role, and it can be maintained at locking state solid and reliablely.
The present invention sets up the locking mechanism 6 for locked main lock 4, its simple in construction and low cost of manufacture in common locking, and is suitable for batch production.It addition, the present invention does not limit to is applied to antitheft door, safety cabinet, national treasury etc. other lock and be environmentally used as.
The aforementioned description to the specific illustrative embodiment of the present invention illustrates that and the purpose of illustration.These describe and are not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned instruction, it is possible to carry out much changing and change.Purpose exemplary embodiment selected and describe is in that to explain the certain principles of the present invention and practical application thereof, so that those skilled in the art is capable of and utilizes the various different exemplary of the present invention and various different selection and change.The scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (3)
1. limit a theftproof lock for main lock with spacer pin, it includes housing, lock core, dead bolt and main lock, it is characterised in that also including a locking mechanism, described locking mechanism includes:
Removable pin, it is can be arranged in described housing in the way of slide anteroposterior, and this removable pin is parallel to described lock core；The front end of this removable pin and described housing are attached by one first spring；This removable pin is provided with a pilot hole being perpendicular to its axis；
Bayonet lock, comprising:
First pin, its one end acts against on the sidewall of described lock core, and the other end of this first pin is movably set in described pilot hole；
Second pin, its one end is movably set in described pilot hole and acts against the other end of described first pin；The other end of this second pin stretches out in outside described pilot hole；The length of this second pin is at least equal to the length of described pilot hole；And
3rd pin, its one end acts against the other end of described second pin, and the other end of the 3rd pin is attached by one second spring with described housing；And
Spacer pin, it is can be arranged in described housing in the way of slide anteroposterior, and the rear end of the front end of this spacer pin and described removable pin is attached by a plate；When described main lock is in locking duty, the rear end of this spacer pin is corresponding with the tail end of described main lock.
2. spacer pin according to claim 1 limits the theftproof lock of main lock, it is characterized in that, a movable cotter way and a card cotter way vertical with described movable cotter way it is provided with in described housing, described movable cotter way is used for installing described removable pin and described first spring, and described card cotter way is used for installing described bayonet lock and described second spring.
3. spacer pin according to claim 1 limits the theftproof lock of main lock, it is characterized in that, one end of the rear end of described removable pin and described connecting plate is fixedly connected by nut, and the other end of the front end of described spacer pin and described connecting plate is fixedly connected by nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610065034.8A CN105735763B (en) | 2016-01-29 | 2016-01-29 | A kind of theftproof lock that main lock is limited with spacer pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610065034.8A CN105735763B (en) | 2016-01-29 | 2016-01-29 | A kind of theftproof lock that main lock is limited with spacer pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105735763A true CN105735763A (en) | 2016-07-06 |
| CN105735763B CN105735763B (en) | 2017-10-20 |
Family
ID=56247006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610065034.8A Active CN105735763B (en) | 2016-01-29 | 2016-01-29 | A kind of theftproof lock that main lock is limited with spacer pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105735763B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1144137A (en) * | 1997-07-29 | 1999-02-16 | Miwa Lock Co Ltd | Lock device |
| CN2420387Y (en) * | 2000-05-17 | 2001-02-21 | 刘福财 | Interlocking mechanism for alarm anti-theft door |
| CN201460453U (en) * | 2009-08-14 | 2010-05-12 | 刘胜忠 | Staggered anti-theft lock and key thereof |
| CN104727651A (en) * | 2015-01-20 | 2015-06-24 | 余虹仪 | Magnetic electromechanical interlocking anti-theft alarm lock |
| CN104847172A (en) * | 2015-06-12 | 2015-08-19 | 杨振勇 | Lock cylinder with limited posts |
-
2016
- 2016-01-29 CN CN201610065034.8A patent/CN105735763B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1144137A (en) * | 1997-07-29 | 1999-02-16 | Miwa Lock Co Ltd | Lock device |
| CN2420387Y (en) * | 2000-05-17 | 2001-02-21 | 刘福财 | Interlocking mechanism for alarm anti-theft door |
| CN201460453U (en) * | 2009-08-14 | 2010-05-12 | 刘胜忠 | Staggered anti-theft lock and key thereof |
| CN104727651A (en) * | 2015-01-20 | 2015-06-24 | 余虹仪 | Magnetic electromechanical interlocking anti-theft alarm lock |
| CN104847172A (en) * | 2015-06-12 | 2015-08-19 | 杨振勇 | Lock cylinder with limited posts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105735763B (en) | 2017-10-20 |
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