CN107605249A - Double copies open lockset - Google Patents
Double copies open lockset Download PDFInfo
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- CN107605249A CN107605249A CN201710803298.3A CN201710803298A CN107605249A CN 107605249 A CN107605249 A CN 107605249A CN 201710803298 A CN201710803298 A CN 201710803298A CN 107605249 A CN107605249 A CN 107605249A
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Abstract
Double copies open Suo Ju Wataru and the double copies open method to spring lock, it is characterised in that；In lock body（3）With core（5）Between be provided with set the heart（4）, cover the heart（4）Marble hole in be provided with middle pellet（7）, so as to form two locking faces, that is, cover the heart（4）Interior locking face and outer locking face, configure two kinds of keys, two kinds of keys are different tooth codes, and a kind of key matches somebody with somebody the complete heart（4）Interior locking face unlock, cover the heart（4）By pellet（8）Pin, core（5）Unlocking can individually be rotated.Another key matches somebody with somebody the complete heart（4）Outer locking face unlock, core（5）With the set heart（4）By pellet（6）With middle pellet（7）It has been locked in together, common rotation is unlocked.Cover the heart（4）Interior locking face and outer locking face can not possibly can not all be opened in synchronization, it is achieved thereby that two kinds of keys, double copies open same lock, eliminate the hidden danger that lockset can not be opened.Two locking faces, have also effectively cracked various technology unlockings, improve the service life of tapered end.
Description
Technical field
Double copies open the manufacturing technology that lockset belongs to lockset, especially relate to the double copies open method of spring lock.
Background technology
For spring lock because simple in construction, production cost is low, and is widely used.But there is two for existing spring lock
Significant deficiency, 1：The ability that precautionary technology is unlocked is poor, and 2：After key and pellet abrasion, lockset can not just be opened.Often there is electricity
The U-shaped lock of motor-car is not opened, and is not walked." anxious to unlock " master worker is not driven and looked for the car door lock for meeting automobile yet.Also antitheft door
Door lock is not opened, and to ask fire fighter to be dismantled.Although in the prior art, also there is similar double copies to open lockset,
That belongs to double end lockset, this lock, there is two tapered ends, there is two lockholes, so, complicated, cost is high, and volume is big, if
It is applied on antitheft door or car door also unsightly, such as；Application number；201620420687.9 patent just belong to double-head lock
Tool.
The content of the invention.
On the premise of being unlocked in breaking techniques, there is provided a kind of structure cylinder list, good appearance, use
Long lifespan, safe and reliable new double copies open lockset.
The purpose of the present invention is realized by following scheme.
Double copies open Suo Ju Wataru and the double copies open method to spring lock, including：Bottom plate（2）, lock body（3）, cover the heart
（4）, core（5）, interior pellet（6）, middle pellet（7）, outer pellet（8）, spring（9）, key（10）, mark（11）, upper half set
（14）, key（20）, key（21）, lower half set（24）, core（5）For unlocking element, it is characterised in that；In lock body（3）With lock
The heart（5）Between be provided with one set the heart（4）, cover the heart（4）It is provided with marble hole, and and core（5）On marble hole and lock body（3）On
Marble hole alignment connection, set the heart（4）Marble hole in be provided with middle pellet（7）With middle pellet（17）, so as to form two
Independent locking face, i.e., interior locking face and outer locking face, configure two kinds of keys, and one of which key is made into interior locking face and unlocked, another key
Spoon is made into outer locking face and unlocked.
Further；There are row's pellet, all interior pellets in lock head component（6）It is round end pellet, all middle pellets（7）
It is tack pellet, all outer pellets（8）It is tack pellet, key（10）And key（20）It is the key of single cog, two kinds of keys
Spoon is different tooth code, key（10）It is made into interior locking face to unlock, key（20）Outer locking face is made into unlock.
Further；Key（21）It is the key of two sides tooth, two sides tooth is different tooth codes, the mark of key（11）Upper
When, it is made into interior locking face and unlocks, the mark of key（11）At bottom, it is made into outer locking face and unlocks.
Further；There is two rows pellet in lock head component, the configuration of two row's pellets is identical, all interior pellets（6）It is
Round end pellet, all middle pellets（7）It is tack pellet, all outer pellets（8）It is tack pellet, key（21）It is two sides tooth
Key, two sides tooth is different tooth codes, the mark of key（11）When upper, it is made into interior locking face and unlocks, the mark of key
（11）At bottom, it is made into outer locking face and unlocks.
Further；There is orthogonal four rows pellet in lock head component, the configuration of four row's pellets is identical, all interior pellets
（6）It is round end pellet, all middle pellets（7）It is tack pellet, all outer pellets（8）It is tack pellet, key is four sides tooth
Cross key, four sides tooth are different tooth codes, can arbitrarily select two kinds of angle configurations unlocking faces, and one of angle is made into interior
Locking face is unlocked, and another angle is made into outer locking face and unlocked.
Further；There is two rows pellet in lock head component, the configuration of two rows pellet is different, the configuration of upper row's pellet
It is；All interior pellets（6）It is round end pellet, all middle pellets（7）It is tack pellet, all outer pellets（8）It is round end pellet, under
Arranging the configuration of pellet is；All interior pellets（6）It is round end pellet, all middle pellets（7）It is round end pellet, all outer pellets（8）
It is tack pellet, key（10）It is the key of single cog, the tooth of key is made into interior locking face and unlocked, the tooth of key exists when upper
When the next, it is made into outer locking face and unlocks.
Further；There is orthogonal four rows pellet in lock head component, the configuration of two rows pellet is identical；All interior bullets
Son（6）It is round end pellet, all middle pellets（7）It is tack pellet, all outer pellets（8）It is round end pellet, the row's pellet of left and right two
Configuration it is identical；All interior pellets（6）It is round end pellet, all middle pellets（7）It is round end pellet, all outer pellets（8）It is flat
Head pellet, key（21）It is the key of two sides tooth, two sides tooth is different tooth codes, the mark of key（11）When upper, it is made into
Interior locking face is unlocked, the mark of key（11）At right position, it is made into outer locking face and unlocks.
Further；Cover the heart（4）By upper half set（14）With lower half set（24）It is put together.
Beneficial effects of the present invention.
Double copies open lockset and there was only a tapered end, a lockhole, structure cylinder list, small volume, do not influence the outward appearance of lock, have
Two independent locking faces, the difficulty of technology unlocking significantly increase, furthermore, it is possible to use two kinds of keys, be separately turned on two it is different
Locking face, double copies unlocking is realized, after eliminating key and pellet abrasion, hidden danger that lockset can not be opened, meanwhile, tapered end makes
It there has also been and significantly improve with the life-span.
Brief description of the drawings.
Fig. 1：Single-row billiard tapered end, axial partial schematic sectional view,（Interior locking face is unlocked）.
Fig. 2：Single-row billiard tapered end, axial partial schematic sectional view,（Outer locking face is unlocked）.
Fig. 3：Single-row billiard tapered end, the key of two sides tooth, axial partial schematic sectional view（Key control hole is upward）.
Fig. 4：Single-row billiard tapered end, the key of two sides tooth, axial partial schematic sectional view（Key control hole is downward）.
Fig. 5：Two row's ball lock heads, axial partial schematic sectional view（Key control hole is upward）.
Fig. 6：Two row's ball lock heads, axial partial schematic sectional view（Key control hole is downward）.
Fig. 7：Upper half covers part drawing.
Fig. 8：Lower half covers part drawing.
It is specifically described below against specific embodiment, and with reference to accompanying drawing.
In accompanying drawing；2；Bottom plate, 3；Lock body, 4；The set heart, 5；Core, 6；Interior pellet, 7；Middle pellet, 8；Outer pellet, 9；Spring,
10；Key, 11；Mark, 14；Upper half set, 20；Key, 21；Key, 24；Lower half set.
Two kinds of keys：Both it is different tooth codes including two keys, is also entered including same key with different angles
Lockhole is with lock and unlocks.
Embodiment 1.
This is a kind of spring lock, referring to Fig. 1, in lock head component, lock body（3）With core（5）Between be provided with one set the heart
（4）, cover the heart（4）It is a section copper pipe, in the set heart（4）It is provided with marble hole, and and core（5）On marble hole and lock body（3）On
Marble hole alignment connection, set the heart（4）Marble hole in be provided with middle pellet（7）, so as to form two independent locking faces, i.e.,
Cover the heart（4）Interior locking face and set the heart（4）Outer locking face, locking face and outer locking face in abbreviation.There are row's pellet, interior bullet in lock head component
Son（6）, middle pellet（7）, outer pellet（8）, 3 pellets are one group, totally four groups of pellets.Interior pellet refers to can be with the bullet of key contact
Son.The configuration of pellet：Four interior pellets（6）It is round end pellet, four middle pellets（7）It is tack pellet, four outer pellets（8）
It is tack pellet.Key（10）And key（20）All it is the key of single cog, two keys are different tooth codes.Key（10）Match somebody with somebody
Unlocked into interior locking face, see Fig. 1, the method with tooth is identical with common spring lock.Key（20）It is made into outer locking face to unlock, sees Fig. 2.Lock
The heart（5）For unlocking element.
When with key（10）During unlocking, interior locking face is unlocked, and sees Fig. 1, middle pellet（7）Enter lock body（3）, cover the heart（4）Quilt
Pin.Core（5）Unlocking can individually be rotated.
When with key（20）During unlocking, outer locking face is unlocked, and sees Fig. 2, interior pellet（6）Into the set heart（4）, by core（5）With
Cover the heart（4）It has been locked in together, core（5）With the set heart（4）Unlocking can be rotated jointly.
Double copies open lockset and there was only a tapered end, a lockhole, there is two cores, including：Core（5）With the set heart（4）,
Two cores can rotate coaxially.After key and pellet use abrasion for a long time, situation about can not open also occurs, but, two
Individual independent locking face, it is impossible to it can not all be opened in synchronization, so, this is that one kind can be opened with two kinds of keys, double copies
The same new method lockset is opened, simultaneously as there are three layers of pellet in tapered end, two unlocking faces, the difficulty of technology unlocking also has
Significant increase, the detail that precautionary technology is unlocked finally illustrate.
The pellet configuration of embodiment 1, can apply to the key of two sides tooth（21）, see Fig. 3, two sides tooth is different teeth
Code, the interior only row's pellet of tapered end, when the mark of key（11）When upper, it is made into interior locking face and unlocks.When the mark of key
（11）At bottom, it is made into outer locking face and unlocks.This is that one kind can be double standby with same key , Fen Do from upper and lower both direction
Part opens the same new method lockset.
The pellet configuration of embodiment 1, the tapered end of two rows pellet can also be applied to, two rows pellet is all with implementation
The pellet configuration of example 1, with the key of two sides tooth（21）, when the mark of key（11）When upper, it is made into interior locking face and unlocks.Work as key
The mark of spoon（11）At bottom, it is made into outer locking face and unlocks.This is that one kind can use same key, and double copies open same
The new method of lockset.
The pellet configuration of embodiment 1, the tapered end of four row's pellets can also be applied to, four row's pellets are mutually perpendicular to, and often arrange bullet
Son is all configured with the pellet of embodiment 1, and lockhole is cross, with the cross key of four sides tooth, when the mark of key（11）Upper
During position, it is made into interior locking face and unlocks.When the mark of key（11）At bottom, it is made into outer locking face and unlocks.Key can have four kinds of angles
Degree enters lockhole with lock, and one of which angle is made into interior locking face and unlocked, and another angle is made into outer locking face and unlocked.This is that one kind can
To open the same new method lockset with same key, double copies.
Embodiment 2.
There is two rows pellet in lock head component, see Fig. 5, upper row's pellet there are four groups, there are 12 pellets, and lower row's pellet is also
Four groups, totally 12 pellets, a total of 24 pellets.Cover the heart（4）By upper half set（14）With lower half set（24）Combine, upper half set
（14）With lower half set（24）Marble hole is designed with, key uses the key of single cog（10）.
Above in row's marble hole, four interior pellets（6）It is round end pellet, four middle pellets（7）It is tack pellet, four
Individual outer pellet（8）It is round end pellet.In row marble hole below, four interior pellets（6）It is round end pellet, four middle pellets
（7）It is round end pellet, four outer pellets（8）It is tack pellet.The configuration of two rows pellet is different, the pellet with embodiment 1
Configuration is also different.
The configuration for often arranging pellet only has three kinds, and interior pellet must be round end pellet, and the configuration of remaining pellet is respectively；1；In
Pellet and outer pellet are all tack pellets, 2；Middle pellet is tack pellet, outer pellet round end pellet, 3；Middle pellet is Round nose
Son, outer pellet tack pellet.
Key（10）Tooth when upper, two rows pellet, be all made into interior locking face and unlock, referring to Fig. 3, upper row's is hit by a bullet
Son（7）With the outer pellet of lower row（8）Shift up, eight pellets are jointly by upper half set（14）With lower half set（24）It has been locked in lock body
（3）On, core（5）Individually rotation is unlocked.When abrasion can not open for a long time for key and pellet, four middle pellets of lower row
（7）It is round end pellet, core will not be pinned（5）, here it is the middle pellet of lower row（7）Use the basic reason of round end pellet.
Key（10）Tooth at bottom, two rows pellet, be all made into outer locking face and unlock, referring to Fig. 4, four of upper row
Middle pellet（7）Into core（5）, by upper half set（14）And core（5）It has been locked in together, four interior pellets of lower row（6）Into
Lower half set（24）, upper half set（14）, lower half set（24）, core（5）Three rotates unlocking jointly.When key and pellet are ground for a long time
When damage can not open, four outer pellets（8）It is round end pellet, will not also pins upper half set（14）With lower half set（24）And core
（5）, here it is four outer pellets（8）Use the basic goal of round end pellet.
This is that one kind can open same the new of lockset with same key , Fen Do from upper and lower both direction, double copies
Method.Two rows pellet works independently in tapered end, not only realizes double copies unlocking, also improves the service life of tapered end
One times.
The pellet configuration of embodiment 2, the tapered end of four row's pellets can also be applied to, four row's pellets are mutually perpendicular to, and lockhole is
Cross, two rows pellet is configured using identical pellet, all interior pellets（6）It is round end pellet, all middle pellets
（7）It is tack pellet, all outer pellets（8）It is round end pellet, the row's pellet of left and right two is configured using identical pellet, all
Interior pellet（6）It is round end pellet, all middle pellets（7）It is round end pellet, all outer pellets（8）It is tack pellet, with two
The key of face tooth（21）, two sides tooth is different tooth codes.When the mark of key（11）In upper entrance lockhole, interior locking face is made into
Unlock.When the mark of key（11）In right position（Key is horizontal）During into lockhole, it is made into outer locking face and unlocks.This is that one kind can be used
Same key, double copies open the same new method lockset.
In the present embodiment, the heart is covered（4）By upper half set（14）With lower half set（24）Combine.Fig. 7 is upper half set（14）'s
Part drawing.Left view is sectional view, will cover the heart（4）Stage casing undercut, for placing lower half set（24）.Fig. 8 is lower half set
（24）Part drawing, two part combinations are into a complete set heart（4）.Two lower half sets can also be used（24）Piece together one
Cover the heart（4）.
The present invention is the new method that double copies open lockset, unrelated with using a few row's pellets or several groups of pellets, with a few row's bullets
Angle between son is unrelated.All embodiments, in bitting, it can arbitrarily select one of which key to be made into interior locking face and open
Lock, another key are made into outer locking face and unlocked.
Present invention can apply to all kinds of locksets.The present invention is applied to a variety of keys.
Present invention dramatically increases the difficulty of technology unlocking.Double copies open the unlocking of lockset, it is necessary to meet two conditions,
1；All interior locking faces are unlocked, and 2；All outer locking faces are unlocked.Various technology unlocking methods, all it is difficult to meet the two conditions.
" single to hook point pearl sensation method " in technology unlocking method, when instigateeing pellet one by one, having plenty of interior locking face opens, and has
Be that outer locking face is opened, lockset can not be opened.
With " tinfoil unlocking method ", also occur " pellet having is that interior locking face is opened, and some pellets are that outer locking face is opened "
Situation, lockset still can not be opened.
Pellet used in all embodiments, can be common pellet, can be I-shaped pellet or
The pellet of dried mushroom type, can also be magnetic bullet, for example, middle pellet（7）Using permanent magnetism pellet, interior pellet（6）With outer pellet（8）
Using ferromagnetic pellet.One group of three pellet can firmly be pulled together in the presence of the permanent magnetism pellet of centre, Ke Yiyou
Prevent to effect " hitting spoon unlocking ".
Also " mashed up method " is can use to crack " hitting spoon to unlock "., can optional two in row's pellet by taking embodiment 1 as an example
Group pellet carries out mashed up, middle pellet（7）Configure permanent magnetism pellet, outer pellet（8）Configure ferromagnetic pellet, interior pellet（6）Still copper is used
Pellet, remaining several groups of pellet configuration common spring, for example, configuration copper marble.According to the spring rule of pellet, hit
When, the outer pellet of ball subgroup（8）It can be flicked, this is that outer locking face is unlocked, and middle pellet（7）Configure permanent magnetism pellet, outer bullet
Son（8）Configure two groups of pellets of ferromagnetic pellet, when being hit, middle pellet（7）With outer pellet（8）It is pulled together by bullet
Open, this is that interior locking face is unlocked, and can not meet unlocking condition, can effectively be cracked " hitting spoon unlocking ".
There is a method in which it can also crack " hitting spoon unlocking ".By taking embodiment 1 as an example, in outer pellet（8）Outside set up again
One ricochet, i.e. every group of four pellets, according to the spring rule of pellet, when being hit, only outermost ricochet
It can be flicked, its excess-three pellet will not substantially separate, so " hitting spoon unlocking " can effectively be cracked.
Double copies open Suo Ju Wataru and the double copies open method to spring lock, cover the heart（4）With middle pellet（7）Two formed
Individual independent unlocking face, various technology unlockings can be effectively prevented, the double copies for realizing lockset again are opened, structure cylinder list, outside
Shape is attractive in appearance, service life length, securely and reliably, the specific embodiment, all have effectively achieved the purpose of the present invention.
Claims (8)
1. double copies open Suo Ju Wataru and the double copies open method to spring lock, including：Bottom plate（2）, lock body（3）, cover the heart
（4）, core（5）, interior pellet（6）, middle pellet（7）, outer pellet（8）, spring（9）, key（10）, mark（11）, upper half set
（14）, key（20）, key（21）, lower half set（24）, core（5）For unlocking element, it is characterised in that；In lock body（3）With lock
The heart（5）Between be provided with one set the heart（4）, cover the heart（4）It is provided with marble hole, and and core（5）On marble hole and lock body（3）On
Marble hole alignment connection, set the heart（4）Marble hole in be provided with middle pellet（7）With middle pellet（17）, so as to form two
Independent locking face, i.e., interior locking face and outer locking face, configure two kinds of keys, and one of which key is made into interior locking face and unlocked, another key
Spoon is made into outer locking face and unlocked.
2. double copies according to claim 1 open lockset, it is characterised in that；There is row's pellet in lock head component, own
Interior pellet（6）It is round end pellet, all middle pellets（7）It is tack pellet, all outer pellets（8）It is tack pellet, key
Spoon（10）And key（20）It is the key of single cog, two kinds of keys are different tooth codes, key（10）It is made into interior locking face to unlock, key
Spoon（20）Outer locking face is made into unlock.
3. the double copies according to claim 1,2 open lockset, it is characterised in that；Key（21）It is the key of two sides tooth,
Two sides tooth is different tooth codes, key（21）Mark（11）When upper, it is made into interior locking face and unlocks, key（21）Mark
（11）At bottom, it is made into outer locking face and unlocks.
4. double copies according to claim 1 open lockset, it is characterised in that；There is two rows pellet in lock head component,
The configuration of two row's pellets is identical, all interior pellets（6）It is round end pellet, all middle pellets（7）It is tack pellet, it is all
Outer pellet（8）It is tack pellet, key（21）It is the key of two sides tooth, two sides tooth is different tooth codes, key（21）Mark
（11）When upper, it is made into interior locking face and unlocks, key（21）Mark（11）At bottom, it is made into outer locking face and unlocks.
5. double copies according to claim 1 open lockset, it is characterised in that；There is orthogonal four row in lock head component
Pellet, the configuration of four row's pellets is identical, all interior pellets（6）It is round end pellet, all middle pellets（7）It is tack pellet, owns
Outer pellet（8）It is tack pellet, key is the cross key of four sides tooth, and four sides tooth is different tooth codes, can arbitrarily select two
Kind angle configurations unlocking face, one of angle are made into interior locking face and unlocked, and another angle is made into outer locking face and unlocked.
6. double copies according to claim 1 open lockset, it is characterised in that；There is two rows pellet in lock head component,
The configuration of two rows pellet is different, and the configuration of upper row's pellet is；All interior pellets（6）It is round end pellet, all middle pellets（7）
It is tack pellet, all outer pellets（8）It is round end pellet, the configuration of lower row's pellet is；All interior pellets（6）It is round end pellet,
All middle pellets（7）It is round end pellet, all outer pellets（8）It is tack pellet, key（10）It is the key of single cog, key
Tooth is made into interior locking face and unlocked when upper, and the tooth of key is made into outer locking face and unlocked at bottom.
7. double copies according to claim 1 open lockset, it is characterised in that；There is orthogonal four row in lock head component
Pellet, the configuration of two rows pellet are identical；All interior pellets（6）It is round end pellet, all middle pellets（7）It is tack pellet,
All outer pellets（8）It is round end pellet, the configuration of the row's pellet of left and right two is identical；All interior pellets（6）It is round end pellet, Suo Youzhong
Pellet（7）It is round end pellet, all outer pellets（8）It is tack pellet, key（21）It is the key of two sides tooth, two sides tooth is different
Tooth code, key（21）Mark（11）When upper, it is made into interior locking face and unlocks, key（21）Mark（11）At right position,
Outer locking face is made into unlock.
8. double copies according to claim 1 open lockset, it is characterised in that；Cover the heart（4）By upper half set（14）And lower half
Set（24）It is put together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710803298.3A CN107605249A (en) | 2017-09-08 | 2017-09-08 | Double copies open lockset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710803298.3A CN107605249A (en) | 2017-09-08 | 2017-09-08 | Double copies open lockset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107605249A true CN107605249A (en) | 2018-01-19 |
Family
ID=61063196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710803298.3A Pending CN107605249A (en) | 2017-09-08 | 2017-09-08 | Double copies open lockset |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107605249A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386074A (en) * | 2018-03-15 | 2018-08-10 | 胡鲁平 | Double copies open the method that tapered end prevents technology unlocking |
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|---|---|---|---|---|
| CN2050861U (en) * | 1989-07-07 | 1990-01-10 | 邓铿 | Ball lock being able to change key |
| CN2072569U (en) * | 1990-06-08 | 1991-03-06 | 矫进国 | Double control sleeve core special lock |
| CN2088146U (en) * | 1990-12-01 | 1991-11-06 | 祁广社 | Lock capable of changing-over key |
| FR2699216A1 (en) * | 1992-12-11 | 1994-06-17 | Ronis Sa | Pin tumbler lock - has master key and servant keys of same length, with master key moving end tumblers |
| CA2257765A1 (en) * | 1999-01-07 | 2000-07-07 | James F. Glazier | Key retaining lock apparatus |
| CN202645155U (en) * | 2012-07-04 | 2013-01-02 | 烟台三环挂锁有限公司 | Key and lock mechanism thereof |
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2017
- 2017-09-08 CN CN201710803298.3A patent/CN107605249A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050861U (en) * | 1989-07-07 | 1990-01-10 | 邓铿 | Ball lock being able to change key |
| CN2072569U (en) * | 1990-06-08 | 1991-03-06 | 矫进国 | Double control sleeve core special lock |
| CN2088146U (en) * | 1990-12-01 | 1991-11-06 | 祁广社 | Lock capable of changing-over key |
| FR2699216A1 (en) * | 1992-12-11 | 1994-06-17 | Ronis Sa | Pin tumbler lock - has master key and servant keys of same length, with master key moving end tumblers |
| CA2257765A1 (en) * | 1999-01-07 | 2000-07-07 | James F. Glazier | Key retaining lock apparatus |
| CN202645155U (en) * | 2012-07-04 | 2013-01-02 | 烟台三环挂锁有限公司 | Key and lock mechanism thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386074A (en) * | 2018-03-15 | 2018-08-10 | 胡鲁平 | Double copies open the method that tapered end prevents technology unlocking |
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Application publication date: 20180119 |