CN103628739B - The groove type engineering key can used safely before and after finishing - Google Patents
The groove type engineering key can used safely before and after finishing Download PDFInfo
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- CN103628739B CN103628739B CN201310538425.3A CN201310538425A CN103628739B CN 103628739 B CN103628739 B CN 103628739B CN 201310538425 A CN201310538425 A CN 201310538425A CN 103628739 B CN103628739 B CN 103628739B
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- key
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Abstract
A kind of groove type engineering key can used safely before and after finishing, it is characterized in that, to first key of decoration worker and primary the second key of finishing back room when it comprises finishing, the upper and lower surface of the second key is equipped with the curved surface groove matched with lock core marble, the one side of described first key is provided with the curved surface groove matched with corresponding lock core marble, its another side is provided with the linear groove without unlocking function, this linear groove can not stir lock core marble, when the first key inserts corresponding keyhole, the curved surface of the curved surface groove of the first key promotes corresponding lock core marble and unblanks, the linear groove of this first key then makes corresponding lock core marble keep original state constant, when the second key inserts corresponding keyhole, the curved surface of the curved surface groove on the second key two sides is stirred corresponding lock core marble respectively and unblanks, thus change the state of the lock core marble corresponding to the first key linear groove, after making the second key unlocking, the first key just cannot be unblanked again.
Description
[technical field]
The present invention relates to key, particularly a kind of groove type engineering key can used safely before and after finishing.
[background technology]
During house decoration, usually need to decoration worker's key to pass in and out.If the key in upfitter's staff is the same with having fitted up the actual key used of rear family, potential safety hazard will certainly be caused.Therefore, people wish that the key that decoration worker's initial stage uses and the key that family finally uses are different.For solving potential safety hazard, people generally again can change lock core after finishing completes.Due to door lock install after to change lock core more cumbersome, therefore, people contemplate again another kind of solution: engineering key.Engineering key generally comprises two, and one, to decoration worker's use, is commonly called as the first key or A key; One, to landlord's use, is commonly called as the second key or B key.The principle of engineering key is that the structure of these two keys is different, as long as people to inject in lock core one turn the second key, the first key just can not have been unblanked.Existing engineering key is all for spring courage lock core, the first key and the second key difference be just that the degree of depth that they have individual pellet to cheat is different.The hoodle having filled a very minor diameter up and down between pellet of existing spring marble lock core, when use the first key, on it, pellet hole adds that the height of hoodle is just concordant with lock core, so can twist lock core with key and unblank; And when use the second key, the degree of depth of the second marble hole on the key just can eject lock core hoodle, at this moment the second key can twist lock core and unblank (principle is with primary and secondary keys system) equally, can work as after lock core turns an angle, hoodle will be subject to the effect of spring marble and fall in the blind hole set on lock core in advance, the direct diameter than hoodle of this blind hole is large, but less than the diameter of pellet, can not block lock core after hoodle is dropped.Pellet is fallen into after in blind hole and can only be rotated with lock core, can not run out of blind hole, can not have an impact to use second key.But when using the first key, owing to not had hoodle, corresponding with it pellet has been can not concordant with lock core (differing the height of hoodle), therefore cannot continue to turn lock core and unblank.Existing this engineering key, although certain anti-theft function can be played, but for slightly understanding the people of operating principle, be easy to slightly make improvements on the basis of the first key and obtain the second key (changing the degree of depth in the first key pins hole), therefore its safety is also very limited.
[summary of the invention]
The present invention is intended to solve the problem, and provides one can meet decoration requirements, can avoid again changing the next trouble of lock strap, and can improve the groove type engineering key can used safely before and after finishing of safe application performance.
For achieving the above object, the invention provides a kind of groove type engineering key can used safely before and after finishing, it is characterized in that, to first key of decoration worker and primary the second key of finishing back room when it comprises finishing, the upper and lower surface of described second key is equipped with the curved surface groove matched with lock core marble, the one side of described first key is provided with the curved surface groove matched with corresponding lock core marble, its another side is provided with the linear groove without unlocking function, this linear groove can not stir lock core marble, when the first key inserts corresponding keyhole, the curved surface of the curved surface groove of the first key promotes corresponding lock core marble and unblanks, the linear groove of this first key then makes corresponding lock core marble keep original state constant, when the second key inserts corresponding keyhole, the curved surface of the curved surface groove on the second key two sides is stirred corresponding lock core marble respectively and unblanks, thus change the state of the lock core marble corresponding to the first key linear groove, after making the second key unlocking, the first key just cannot be unblanked again.
The curve form of the curved surface groove of the upper and lower surface of described second key is not identical.
The upper and lower surface of described second key is respectively provided with two curved surface grooves, and the curved surface groove on its one side left side is consistent with the curved surface groove shape on the right of another side, and the curved surface groove on the right of it is consistent with the curved surface groove shape on the another side left side, and the second key can be unblanked by tow sides.
The upper and lower surface of described first key is respectively provided with a curved surface groove and linear groove, and the curved surface groove of this first key upper and lower surface is contrary with the position of linear groove, and the first key can be unblanked by tow sides.
The curved surface of the curved surface groove of described first key and the second key is concavo-convex alternate plane or cambered surface.
Favorable attributes of the present invention is, which provides a kind of novel engineering key.The present invention is arranged to strip groove by the position that the first key should be arranged originally curved surface groove, when making the first key unlocking, groove can not stir pellet, and when using two sides to be equipped with the second key unlocking of curved surface groove, originally corresponding with groove pellet just can change location status, make to only have the curved surface groove corresponding with this ad-hoc location state could promote pellet to unblank, thus make the first key forfeiture effect.Because the location status of upper and lower pellet is different, therefore cannot infers according to the curved surface groove of the first key the curved surface groove shape another side reality completely, only have and just can learn its practical structures by the second key, thus greatly promote the safety of engineering key.In addition, the present invention also has the feature that structure is simple, cost is low, easy to implement.
[accompanying drawing explanation]
Fig. 1 is the structural representation that engineering key of the present invention matches with corresponding lock core, and wherein, Figure 1A is the structural representation of the first key, and Figure 1B is the structural representation of corresponding lock core, and Fig. 1 C is the structural representation of the second key.
Fig. 2 is the second Key structure schematic diagram of the present invention.
Fig. 3 is the first Key structure schematic diagram of the present invention.
Fig. 4 is the STRUCTURE DECOMPOSITION schematic diagram of safe lock cylinder in embodiment.
Fig. 5 is the longitudinal sectional view of safe lock cylinder in embodiment.
[detailed description of the invention]
The following example is to further explanation of the present invention and supplements, and does not constitute any limitation the present invention.
As shown in Figure 1, the groove type engineering key can used safely before and after finishing of the present invention should support the use with corresponding lock core 30.In the present embodiment, the dependency structure of the safe lock cylinder 30 supporting with engineering key of the present invention is as shown in Figure 4, Figure 5: this safe lock cylinder 30 comprises lock gall 31, lock housing 32 and strip Special-shaped marble 33, lock gall 31 is provided with the marble hole 311 that two rows are equipped with Special-shaped marble 33, and lock housing 32 is provided with the movable span 321 corresponding with marble hole 311.This two rows marble hole 311 and the wider plane parallel of keyhole 312, and be communicated with keyhole 312.When Special-shaped marble 33 part is positioned at lock gall 31, when part is positioned at lock housing 32, Special-shaped marble 33 can block lock gall 31, makes it to rotate, and this is locking state.Want that lock gall 31 can be rotated to unblank, just need Special-shaped marble 33 to push completely in lock gall 31, make it to block lock gall 31.For promoting Special-shaped marble 33 by key, described Special-shaped marble 33 is provided with protruding 331, and this projection 331 extend in keyhole 312.By arranging the distance of this projection 331 relative to keyhole 312 center, unblank " password " of key just can be formed.Therefore, when the projection 331 of described Special-shaped marble 33 each apart from the distance of the central point of Special-shaped marble 33 unequal time, only have when the groove shapes of key and the projection 331 of Special-shaped marble 33 match, described protruding 331 could promote Special-shaped marble 33 makes Special-shaped marble 33 be positioned at lock gall 31 completely, thus rotatable lock gall 31 is unblanked.When the distance arrangement of projection 331 cannot learning Special-shaped marble 33, be just difficult to unblank.Based on this principle, the safe lock cylinder 30 matched with the present invention is when reset condition, and upper row's Special-shaped marble 33A is normal design, and namely a part for Special-shaped marble 33 is positioned at lock housing 32, and a part is positioned at lock gall 31 and blocks lock gall 31.Lower row's Special-shaped marble 33B is then positioned at lock gall 31 completely, and namely this lower row's Special-shaped marble 33B does not pin lock gall 31.Under reset condition, as long as upper row's Special-shaped marble 33A is driven fully in lock gall 31, just can unblank.For ensureing that lower row's Special-shaped marble 33B is positioned at lock gall 31 completely when original state, be embedded a graphite rod 40 in the bottom of lower row's Special-shaped marble 33B, the Special-shaped marble 33B being limited whole row by graphite rod 40 is positioned at lock gall 31 completely.Because graphite rod 40 is frangible, as long as there is key to touch the projection 331 of lower row's Special-shaped marble 33B, graphite rod 40 just can break broken, destroys the original location status of lower row Special-shaped marble 33B.
As shown in Figure 1, of the present invention can the groove type engineering key of safe handling before and after fitting up when comprising finishing to first key 10 of decoration worker and primary the second key 20 of finishing back room.
As shown in Figure 2, the upper and lower surface of described second key 20 is equipped with the curved surface groove 21 matched with the projection 331 of described Special-shaped marble 33, namely the curved surface of the curved surface groove 21 of this second key 20 can promote the projection 331 of described Special-shaped marble 33, and makes Special-shaped marble 33 be positioned at lock gall 31 completely.Unblank for convenience of tow sides, in the present embodiment, the upper and lower surface of described second key 20 is respectively provided with two curved surface grooves 21, and the curved surface groove on this second key 20 above left side is consistent with the curved surface groove shape on the right below it, and the curved surface groove on the right of above it is consistent with the curved surface groove shape on the left side below.For improving safety, the projection 331 of the two rows Special-shaped marble 33 of described safe lock cylinder 30 arranges difference, correspondingly, on the second key 20, the shape of two the curved surface grooves 21 in left and right of the same face is also different, and it matches with the projection 331 of two rows Special-shaped marble 33 respectively.Due to the Special-shaped marble 33 of safe lock cylinder 30 projection 331 apart from Special-shaped marble 33 central point distance not etc., therefore, the curved surface of the curved surface groove 21 of described second key 20 is concavo-convex alternate plane or cambered surface.In the present embodiment, it is concavo-convex alternate plane, and projection 331 position of its concavo-convex degree and Special-shaped marble 33 matches, thus make when the second key 20 inserts keyhole 312 completely, described Special-shaped marble 33 can be pushed into completely in lock gall 31 and unblank.
As shown in Figure 3, the one side of described first key 10 is provided with the curved surface groove 11 matched with the projection 331 of upper row's Special-shaped marble 33A, and its another side is provided with the linear groove 12 without unlocking function.The position of this linear groove 12 corresponding with in a state of nature under the projection 331 of lower row's Special-shaped marble 33B.The width of described linear groove 12 is greater than the width of the projection 331 of lower row's Special-shaped marble 33B, the projection 331 that the degree of depth of this linear groove 12 is greater than lower row's Special-shaped marble 33B stretches into the degree of depth of keyhole 312, thus make instantly to arrange Special-shaped marble 33B when being positioned at lock gall 31 completely under the restriction of graphite rod 40, the linear groove 12 of described first key 10 can not touch the projection 331 of lower row's Special-shaped marble 33B, thus can not destroy the original location status of lower row's Special-shaped marble 33B.Be similarly and be convenient to upper and lower surface and unblank, in the present embodiment, the upper and lower surface of described first key 10 is respectively provided with a curved surface groove 11 and linear groove 12, and the curved surface groove 11 of this first key 10 upper and lower surface is contrary with the position of linear groove 12, when making it not distinguish key positive and negative, just can insert keyhole 312 and make the corresponding projection 331 to upper corresponding Special-shaped marble 33 of corresponding curved surface groove 11 and linear groove 12.
Before not inserting the second key 20, time namely during finishing, decoration worker can unblank with the first key 10.When unblanking, the curved surface groove 11 of this first key 10 mates with the projection 331 of upper row's Special-shaped marble 33A and pushes in lock gall 31 completely by upper row's Special-shaped marble 33A, because the second key 20 is be positioned at lock gall 31 completely under reset condition, as long as therefore the curved surface groove 11 of the first key 10 matches and just can directly unblank.Before and after unblanking, the linear groove 12 of this first key 10 can not produce any impact to lower row's Special-shaped marble 33B.After finishing completes, when homeowners uses the second key 20 to unblank, the curved surface groove 21 of these the second key 20 two rows just can promote the projection 331 of two rows Special-shaped marble 33 simultaneously, the graphite rod 40 arranging Special-shaped marble 33B under this limit just can break broken, and two rows Special-shaped marble 33 enters completely in lock gall 31 and just can unblank under the promotion of the second key 20.When the second key 20 is extracted out, the curved surface groove 21 below it can drive lower row's Special-shaped marble 33B to move, and makes lower row's Special-shaped marble 33B cannot be positioned at lock gall 31 completely thus block lock gall 31.Now, the second key 20 only having projection 331 position of lower row's Special-shaped marble 33B with this to match can be unblanked, and the first key 10 is not owing to having to arrange the curved surface groove 11 corresponding with lower row's Special-shaped marble 33B position, only be provided with linear groove 12 (although the same face of the first key had both been provided with curved surface groove 11, be provided with again linear groove 12, but when inserting keyhole, a groove is only had to be corresponding with the raised position of Special-shaped marble, another is that Key upper and lower surface is unblanked), therefore the projection 331 of lower row's Special-shaped marble 33B cannot again be promoted, lower row's Special-shaped marble 33B is made to be positioned at lock gall 31 completely, thus lose the function of unblanking.And due to the projection 331 of described safe lock cylinder 30 two rows Special-shaped marble 33 distance arrangement different, therefore be also difficult to according to the existing curved surface groove 11 of the first key 10 shape inferring the curved surface groove matched with lower row's Special-shaped marble 33B, thus greatly can improve safety in utilization.
Although by above embodiment to invention has been announcement, scope of the present invention is not limited thereto, and under the condition not departing from the present invention's design, above each component can be replaced with the similar or equivalent element that art personnel understand.
Claims (5)
1. the groove type engineering key can used safely before and after finishing, it is characterized in that, to first key (10) of decoration worker and primary the second key (20) of finishing back room when it comprises finishing, the upper and lower surface of described second key (20) is equipped with the curved surface groove (21) matched with lock core (30) pellet, the one side of described first key (10) is provided with the curved surface groove (11) matched with corresponding lock core (30) pellet, its another side is provided with the linear groove (12) without unlocking function, this linear groove (12) can not stir lock core (30) pellet, when the first key (10) inserts corresponding keyhole (312), the curved surface of the curved surface groove (11) of the first key (10) promotes corresponding lock core (30) pellet and unblanks, the linear groove (12) of this first key (10) then makes corresponding lock core (30) pellet keep original state constant, when the second key (20) inserts corresponding keyhole (312), the curved surface of the curved surface groove (21) on the second key (20) two sides is stirred corresponding lock core (30) pellet respectively and unblanks, thus changing the state of corresponding lock core (30) pellet with the first key (10) linear groove (12), after the second key (20) is unblanked, the first key (10) just cannot be unblanked again.
2. the groove type engineering key can used safely before and after finishing as claimed in claim 1, it is characterized in that, the curve form of the curved surface groove (21) of the upper and lower surface of described second key (20) is not identical.
3. the groove type engineering key can used safely before and after finishing as claimed in claim 2, it is characterized in that, the upper and lower surface of described second key (20) is respectively provided with two curved surface grooves, the curved surface groove on its one side left side is consistent with the curved surface groove shape on the right of another side, curved surface groove on the right of it is consistent with the curved surface groove shape on the another side left side, and the second key (20) can be unblanked by tow sides.
4. the groove type engineering key can used safely before and after finishing as claimed in claim 3, it is characterized in that, the upper and lower surface of described first key (10) is equipped with a curved surface groove (11) and linear groove (12), and the curved surface groove (11) of this first key (10) upper and lower surface is contrary with the position of linear groove (12), the first key (10) can be unblanked by tow sides.
5. as described in as arbitrary in Claims 1 to 4 can the groove type engineering key of safe handling before and after finishing, it is characterized in that, the curved surface groove (11) of described first key (10) and the second key (20), the curved surface of (21) are concavo-convex alternate plane or cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310538425.3A CN103628739B (en) | 2013-11-01 | 2013-11-01 | The groove type engineering key can used safely before and after finishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310538425.3A CN103628739B (en) | 2013-11-01 | 2013-11-01 | The groove type engineering key can used safely before and after finishing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103628739A CN103628739A (en) | 2014-03-12 |
| CN103628739B true CN103628739B (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310538425.3A Expired - Fee Related CN103628739B (en) | 2013-11-01 | 2013-11-01 | The groove type engineering key can used safely before and after finishing |
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| Country | Link |
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| CN (1) | CN103628739B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401296A (en) * | 2015-07-27 | 2017-02-15 | 黄伟敏 | Novel blade lock and key |
| CN106555511A (en) * | 2015-09-29 | 2017-04-05 | 黄伟敏 | A kind of blade locking head |
| CN106930606A (en) * | 2015-12-30 | 2017-07-07 | 黄伟敏 | A kind of tapered end |
| CN105863382B (en) * | 2016-05-31 | 2018-11-16 | 浙江钜士安防科技股份有限公司 | A kind of structure of the AB upgrading by blade control side column |
| CN107023223B (en) * | 2017-05-15 | 2022-11-08 | 李明金 | Blade type anti-theft lock |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6481255B2 (en) * | 1999-09-01 | 2002-11-19 | International Security Products, Inc. | High security side bar lock |
| SE524645C2 (en) * | 2002-01-23 | 2004-09-14 | Winloc Ag | Combination of high security locks and key blades |
| CN103046809B (en) * | 2012-12-19 | 2015-09-16 | 陈洁庄 | A kind of AB multifunctional vane lock and A, B key be mated |
| CN203066651U (en) * | 2013-01-10 | 2013-07-17 | 侯洪兵 | Idling vane lockset |
| CN203684817U (en) * | 2013-11-01 | 2014-07-02 | 贺立平 | Groove-shaped engineering key capable of being safely used before and after decoration |
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2013
- 2013-11-01 CN CN201310538425.3A patent/CN103628739B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN103628739A (en) | 2014-03-12 |
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Granted publication date: 20160302 Termination date: 20211101 |