CN203684817U - Groove-shaped engineering key capable of being safely used before and after decoration - Google Patents
Groove-shaped engineering key capable of being safely used before and after decoration Download PDFInfo
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- CN203684817U CN203684817U CN201320687631.6U CN201320687631U CN203684817U CN 203684817 U CN203684817 U CN 203684817U CN 201320687631 U CN201320687631 U CN 201320687631U CN 203684817 U CN203684817 U CN 203684817U
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- key
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Abstract
The utility model relates to a groove-shaped engineering key capable of being safely used before and after decoration, which is characterized by comprising a first key and a second key, wherein the first key is used by a decoration worker in the decorating process; the second key is used by a house owner after decoration; both upper and lower surfaces of the second key are provided with curved surface grooves matched with key cylinder marbles; one surface of the first key is provided with a curved surface groove matched with the corresponding lock cylinder marble; the other surface of the first key is provided with a linear groove without an unlocking function; and the linear groove cannot shift the key cylinder marbles. When the first key is inserted into a corresponding keyhole, a curved surface of the curved surface groove of the first key pushes the corresponding lock cylinder marble to unlock and the linear groove of the first key enables the corresponding lock cylinder marble to be kept in an original state; and when the second key is inserted into a corresponding keyhole, curved surfaces of the curved surface grooves on both the surfaces of the second key respectively shift the corresponding key cylinder marbles to unlock, so that the state of the key cylinder marble corresponding to the linear groove of the first key is changed and the first key cannot carry out unlocking after the second key carries out unlocking.
Description
[technical field]
The utility model relates to key, particularly a kind of groove type engineering key that can use safely before and after finishing.
[background technology]
When house decoration, conventionally key of decoration worker need to be given so that turnover.If the key in upfitter's staff is the same with the key of having fitted up the actual use of rear family, will certainly cause potential safety hazard.Therefore, people wish that the last key using of key and family that decoration worker's initial stage is used is different.For solving potential safety hazard, people generally can again change lock core after finishing completes.Due to door lock, to change lock core after installing cumbersome again, and therefore, people have expected 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, and as long as people are one turning in the second key reeve lock core, and 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 it is different on them, having the degree of depth in individual pellet hole.Existing spring marble lock core between pellet, filled up and down a very hoodle for minor diameter, in the time using the first key, it on, pellet hole adds that the height of hoodle is lucky concordant with lock core, so can twist lock core and unblank with key; And in the time using 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 be twisted 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 setting on lock core in advance, this blind hole directly large than the diameter of hoodle, but less than the diameter of pellet, can not block lock core after hoodle is dropped.Pellet can only rotate with lock core after falling in blind hole, can not run out of blind hole, to using the second key can not exert an influence.But use when the first key, owing to not had hoodle, corresponding pellet is can not concordant with lock core (differing the height of hoodle) with it, therefore cannot continue to turn lock core and unblank.Existing this engineering key, although can play certain anti-theft function, but for the people who slightly understands 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 utility model is intended to address the above problem, and provides one can meet decoration requirements, can avoid again changing the trouble that lock strap is come, and can improve the groove type engineering key that can use safely of safe application performance before and after finishing.
For achieving the above object, the utility model provides a kind of groove type engineering key that can use safely before and after finishing, it is characterized in that, the first key of using to decoration worker when it comprises finishing and the second primary key of finishing back room, the upper and lower surface of described the second key is equipped with the curved surface groove matching with lock core marble, the one side of described the first key is provided with the curved surface groove matching with corresponding lock core marble, its another side is provided with the linear groove without unlocking function, this linear groove can not be stirred lock core marble, in the time that 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 makes corresponding lock core marble keep original state constant, in the time that the second key inserts corresponding keyhole, the curved surface of the curved surface groove on the second key two sides is stirred respectively corresponding lock core marble and is unblanked, thereby changed and the state of the corresponding lock core marble of the first key linear groove, make the second key unlocking after the first key just cannot unblank again.
The curve form of the curved surface groove of the upper and lower surface of described the second key is not identical.
The upper and lower surface of described the 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 another side the right, and the curved surface groove on its right 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 the 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 and the position opposite of linear groove, and the first key can be unblanked by tow sides.
The curved surface of the curved surface groove of described the first key and the second key is concavo-convex alternate plane or cambered surface.
Useful contribution of the present utility model is, it provides a kind of novel engineering key.The utility model is by being arranged to strip groove by former the first key position that curved surface groove should be set, while making the first key unlocking, groove can not stirred pellet, and in the time using two sides to be equipped with the second key unlocking of curved surface groove, originally the pellet corresponding with groove just can change location status, make to only have the curved surface groove corresponding with this ad-hoc location state could promote pellet and unblank, thereby make the first key forfeiture effect.Due to the location status difference of upper and lower pellet, therefore cannot infer according to the curved surface groove of the first key the curved surface groove shape that another side reality completely, only have by the second key and just can learn its practical structures, thereby greatly promote the safety of engineering key.In addition, the utility model also has feature simple in structure, cost is low, easy to implement.
[brief description of the drawings]
Fig. 1 is the structural representation of the first key.
Fig. 2 is the structural representation that engineering key of the present utility model matches with corresponding lock core.
Fig. 3 is the structural representation of the second key.
Fig. 4 is the second Key structure schematic diagram of the present utility model.
Fig. 5 is the first Key structure schematic diagram of the present utility model.
Fig. 6 is the STRUCTURE DECOMPOSITION schematic diagram of safe lock cylinder in embodiment.
Fig. 7 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 utility model and supplements, the utility model is not constituted any limitation.
As shown in FIG. 1 to 3, the groove type engineering key that can use safely before and after finishing of the present utility model should support the use with corresponding lock core 30.In the present embodiment, with the dependency structure of the supporting safe lock cylinder 30 of engineering key of the present utility model as shown in Figure 6, Figure 7: this safe lock cylinder 30 comprises lock gall 31, lock housing 32 and strip Special-shaped marble 33, lock gall 31 is provided with two rows and is equipped with the marble hole 311 of Special-shaped marble 33, and lock housing 32 is provided with the movable span corresponding with marble hole 311 321.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 parts are 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 to make lock gall 31 to rotate and 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, on described Special-shaped marble 33, be provided with projection 331, this projection 331 extend in keyhole 312.By the distance of this projection 331 with respect to keyhole 312 centers is set, just can form unblank " password " of key.Therefore, when the projection 331 of described Special-shaped marble 33 each when unequal apart from the distance of the central point of Special-shaped marble 33, only have in the time that 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, thereby rotatable lock gall 31 is unblanked.In the time of the distance arrangement of projection 331 that cannot learn Special-shaped marble 33, be just difficult to unblank.Based on this principle, the safe lock cylinder 30 matching with the utility model is in the time of reset condition, and upper row's Special-shaped marble 33A is normal design, and 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 positioned at lock gall 31 completely, and 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 pushed in lock gall 31 completely, just can unblank.For ensureing that lower row's Special-shaped marble 33B is positioned at lock gall 31 when the original state completely, be embedded a graphite rod 40 in the bottom of lower row's Special-shaped marble 33B, the Special-shaped marble 33B that is 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, just that graphite rod 40 can break is broken, destroy the original location status of lower row Special-shaped marble 33B.
As shown in Figure 1, Figure 3, the first key 10 of using to decoration worker when the groove type engineering key that can use safely before and after finishing of the present utility model comprises finishing and the second primary key 20 of finishing back room.
As shown in Figure 4, the upper and lower surface of described the second key 20 is equipped with the curved surface groove 21 matching with the projection 331 of described Special-shaped marble 33, 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 the second key 20 is respectively provided with two curved surface grooves 21, and this second key 20 above curved surface groove on the 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 is arranged different, 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 projection 331 of the Special-shaped marble 33 of safe lock cylinder 30 apart from the central point distance of Special-shaped marble 33 not etc., therefore, the curved surface of the curved surface groove 21 of described the second key 20 is concavo-convex alternate plane or cambered surface.In the present embodiment, it is concavo-convex alternate plane, and projection 331 positions of the degree that it is concavo-convex and Special-shaped marble 33 match, thereby make in the time that 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 5, the one side of described the first key 10 is provided with the curved surface groove 11 matching 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, thereby when making instantly to arrange Special-shaped marble 33B be positioned at lock gall 31 completely under the restriction of graphite rod 40, the linear groove 12 of described the first key 10 can not touch the projection 331 of lower row's Special-shaped marble 33B, thereby 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 the first key 10 is respectively provided with a curved surface groove 11 and linear groove 12, and the curved surface groove 11 of these the first key 10 upper and lower surfaces and the position opposite of linear groove 12, while making it not distinguish key positive and negative, just can insert keyhole 312 and make the corresponding projection 331 with upper corresponding Special-shaped marble 33 of corresponding curved surface groove 11 and linear groove 12.
Not inserting before the second key 20, during finishing time, decoration worker can unblank with the first key 10.While unblanking, the curved surface groove 11 of this first key 10 mates and upper row's Special-shaped marble 33A is pushed in lock gall 31 completely with the projection 331 of upper row's Special-shaped marble 33A, because the second key 20 is to be positioned at lock gall 31 completely under reset condition, therefore as long as the curved surface groove 11 of the first key 10 matches just and 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 house owner 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 of the lower row's Special-shaped marble of now restriction 33B 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.In the time that the second key 20 is extracted out, the curved surface groove 21 below it can drive lower row's Special-shaped marble 33B motion, blocks lock gall 31 thereby make lower row's Special-shaped marble 33B cannot be positioned at lock gall 31 completely.Now, only have the second key 20 matching with projection 331 positions of this lower row's Special-shaped marble 33B to unblank, and the first key 10 is owing to there is no to arrange the curved surface groove 11 corresponding with lower row's Special-shaped marble 33B position, both be provided with curved surface groove 11 although be only provided with the same face of linear groove 12(the first key, be provided with again linear groove 12, but while inserting keyhole, it is corresponding with the raised position of Special-shaped marble only having a groove, another is that Key upper and lower surface is unblanked), therefore again cannot promote the projection 331 of lower row's Special-shaped marble 33B, make lower row's Special-shaped marble 33B be positioned at lock gall 31 completely, thereby lose the function of unblanking.And because the distance of the projection 331 of described safe lock cylinder 30 two rows Special-shaped marbles 33 is arranged different, therefore be also difficult to infer the shape of the curved surface groove matching with lower row's Special-shaped marble 33B according to the existing curved surface groove 11 of the first key 10, thereby can greatly improve safety in utilization.
Although the utility model is disclosed by above embodiment, but scope of the present utility model is not limited to this, do not departing under the condition of the utility model design, the similar or equivalent element that above each member can be understood with affiliated technical field personnel is replaced.
Claims (5)
1. the groove type engineering key that can use safely before and after finishing, it is characterized in that, the first key (10) of using to decoration worker when it comprises finishing and primary the second key (20) of finishing back room, the upper and lower surface of described the second key (20) is equipped with the curved surface groove (21) matching with lock core (30) pellet, the one side of described the first key (10) is provided with the curved surface groove (11) matching 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 be stirred lock core (30) pellet, in the time that 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) makes corresponding lock core (30) pellet keep original state constant, in the time that 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 respectively corresponding lock core (30) pellet and is unblanked, thereby changed and the state of corresponding lock core (30) pellet of the first key (10) linear groove (12), the second key (20) is unblanked after the first key (10) just cannot unblank again.
2. the groove type engineering key that can use safely before and after finishing as claimed in claim 1, is characterized in that, the curve form of the curved surface groove (21) of the upper and lower surface of described the second key (20) is not identical.
3. the groove type engineering key that can use safely before and after finishing as claimed in claim 2, it is characterized in that, the upper and lower surface of described the 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 another side the right, the curved surface groove on its right 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 that can use safely before and after finishing as claimed in claim 3, it is characterized in that, the upper and lower surface of described the 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 and the position opposite of linear groove (12), can unblank by tow sides the first key (10).
5. the groove type engineering key that can use safely before and after finishing as described in as any in claim 1～4 one, it is characterized in that, the curved surface groove (11) of described the 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 |
|---|---|---|---|
| CN201320687631.6U CN203684817U (en) | 2013-11-01 | 2013-11-01 | Groove-shaped engineering key capable of being safely used before and after decoration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687631.6U CN203684817U (en) | 2013-11-01 | 2013-11-01 | Groove-shaped engineering key capable of being safely used before and after decoration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203684817U true CN203684817U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320687631.6U Withdrawn - After Issue CN203684817U (en) | 2013-11-01 | 2013-11-01 | Groove-shaped engineering key capable of being safely used before and after decoration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203684817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628739A (en) * | 2013-11-01 | 2014-03-12 | 贺立平 | Groove-shaped engineering key capable of being safely used before and after decoration |
-
2013
- 2013-11-01 CN CN201320687631.6U patent/CN203684817U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628739A (en) * | 2013-11-01 | 2014-03-12 | 贺立平 | Groove-shaped engineering key capable of being safely used before and after decoration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140702 Effective date of abandoning: 20160302 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |