CN203795977U - Lock core - Google Patents
Lock core Download PDFInfo
- Publication number
- CN203795977U CN203795977U CN201420201297.3U CN201420201297U CN203795977U CN 203795977 U CN203795977 U CN 203795977U CN 201420201297 U CN201420201297 U CN 201420201297U CN 203795977 U CN203795977 U CN 203795977U
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- China
- Prior art keywords
- card
- lock
- groove
- square
- keyhole
- 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.)
- Expired - Lifetime
Links
- 239000008188 pellet Substances 0.000 claims abstract description 47
- 208000006558 Dental Calculus Diseases 0.000 claims description 10
- 239000004579 marble Substances 0.000 claims description 6
- 230000009194 climbing Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Lock And Its Accessories (AREA)
Abstract
The utility model discloses a lock core, which comprises a lock body and a key, wherein the lock body comprises a lock shell; a lock gall is mounted in the lock shell; a square locking groove is opened on the lock shell; a key hole, a card placing groove corresponding to the locking groove and a plurality of side grooves are opened on the lock gall; a side face pellet cooperated with the key is mounted in each of the side groove; a square sliding-in groove is set on a bottom portion of the side face pellet; a card and a card return spring are mounted in the card placing groove; an outer end of the card is provided with a first square card-connecting portion cooperated with the square locking groove and an inner end thereof is provided with a second square card-connecting portion cooperated with the square sliding-in groove; a card position-limiting groove communicated with the key hole and the card placing groove are formed on the lock gall; a position-limiting column capable of limiting the vertical movable position of the card is placed in the car position-limiting groove; a V-shaped clamping head is set on one end of the position-limiting column close to the key hole; and the key hole is provided with a V-shaped unlocking groove cooperated with the V-shaped clamping head. The object of the utility model is to provide a lock core that a card is not easy to slide out of grooves of a lock shell and a side face pellet.
Description
[technical field]
The present invention relates to a kind of lock core.
[background technology]
Most computer lock core can not anti-technical opening in the market, does not have anti-theft function.Especially on market, occur in recent years much unblanking with electric gun, general lock core is opened for several seconds, is to be even much also very easily unlocked by the lock core of the B of Ministry of Public Security level certification lock core.
The various lock cores with transverse sheet and side tumbler on market, are there are, lock core comprises lock housing and lock gall, side tumbler and transverse sheet are housed in lock gall, the below of side tumbler is provided with open slot, is provided with the lock slots coordinating with transverse sheet at lock-shell lining, in the time inserting correct key, the open slot of all side tumbler forms a line, one end of transverse sheet slides in this row open slot, and the lock slots that the transverse sheet other end is deviate from lock housing enters in lock gall completely, and realization is unblanked.This lock core promotes security performance to some extent.
Above-mentioned lock core generally comprises two classes, and a class is in lock housing, to be provided with V-shaped groove, is provided with the V-arrangement head being mated on transverse sheet.If notification number is CN2806678Y, name is called a kind of utility model patent of lock core.The transverse sheet of this lock core is arc near one end of lock housing, is provided with the deep-slotted chip breaker slipping into for the curved bottom of transverse sheet in lock housing, and the other end of transverse sheet is square, is provided with the square groove inserting for the squared ends of transverse sheet in the bottom of side tumbler.If notification number is CN2541562Y, name is called a kind of with the cylinder lock with balls of lateral column and the utility model patent of key, the transverse sheet of this lock core is V-arrangement near one end of lock housing, in lock housing, be provided with the V-shaped groove slipping into for the V-arrangement bottom of transverse sheet, the other end of transverse sheet is square, is provided with the square groove inserting for the squared ends of transverse sheet in the bottom of side tumbler.
Another kind of is in side tumbler, to be provided with V-shaped groove, is provided with the V-arrangement head being mated on transverse sheet.If notification number is CN2539803Y, name is called a kind of utility model patent of the cylinder lock with multiple latch-up structure, the lock housing of this patent is provided with square lock slots, side tumbler is provided with a circle V-type groove, side column one end is the squared ends coordinating with square lock slots, and the side column other end is the V-arrangement head coordinating with V-type groove.
It is V-arrangement that the transverse sheet of above-mentioned two class lock cores always has one end, in lock housing or side tumbler, be provided with the V-shaped groove coordinating with it, be exactly that the lock core of this spline structure has following common shortcoming: always 1, be V-arrangement because transverse sheet has one end, push and will skid off from V-shaped groove when transverse sheet is subject to external force.2, transverse sheet is the function that is realized locking or release by side tumbler and Spring driving, transverse sheet and key do not have matching relationship, by certain instrument, the groove of side tumbler is arranged in a row like this, due to the not restriction to transverse sheet of key, can realizes exactly the release to transverse sheet.
For this reason, the special development and Design the present invention of the applicant, to overcome above-mentioned technological deficiency.
[summary of the invention]
The present invention has overcome the deficiency of above-mentioned technology, provides a kind of card to be difficult for the lock core skidding off in the groove of lock housing and side tumbler.
For achieving the above object, the present invention adopts following technical scheme:
A kind of lockset, include lock body 1 and key 2, described lock body 1 comprises lock housing 3, the lock gall 4 that can rotate is housed in the installing hole 31 of lock housing 3, on installing hole 31 walls, have the square lock slots 32 of longitudinal setting, on lock gall 4, have keyhole 41, the card standing groove 42 corresponding with lock slots 32 and be arranged on keyhole 41 and card standing groove 42 between multiple side channels 43, described side channel 43 upper ends communicate with keyhole 41, described side channel 43 lower ends communicate with card standing groove 42, the side tumbler 5 coordinating with key 2 is housed in side channel 43, be provided with the square groove 51 that slides in side tumbler 5 bottoms, card 6 and card back-moving spring 7 are housed in card standing groove 42, the outer end of described card 6 is provided with the first square Access Division 61 coordinating with square lock slots 32, the inner of described card 6 is provided with and square the second square Access Division 62 that groove 51 coordinates that slides into, on lock gall 4, be also provided with the card stopper slot 44 that keyhole 41 and card standing groove 42 are communicated with, in described card stopper slot 44, be placed with the limited post 8 that can limit card 6 and move up and down position, described limited post 8 is provided with V-arrangement dop 81 near one end of keyhole 41, on described key 2, be provided with the V-arrangement solution locked groove 21 coordinating with described V-arrangement dop 81, described limited post 8 slides into V-arrangement solution locked groove 21 at V-arrangement dop 81 and allows described card 6 to be locked in lock gall when interior.
Described limited post 8 is formed in one with described card 6, and described limited post 8 is connected on card 6 away from one end one of keyhole 41.
Described limited post 8 and described card 6 split settings are provided with the first annular snap platform 82 on limited post 8, are provided with can block the first annular snap platform 82 and prevent that limited post 8 from deviating from the second annular snap platform 441 of card stopper slot 44 in described card stopper slot 44.
Described card stopper slot 44 is arranged between adjacent side channel 43 or side channel 43 sides.
Institute's card stopper slot 44 is substantially vertical with side channel 43, and the limited post in described card stopper slot 44 is substantially vertical with the side tumbler in side channel 43.
The opposite side that is positioned at described keyhole 41 on described lock gall 4 is also provided with the pin tumbler lock bulb hole, front 45 that at least one row communicates with keyhole 41, in lock housing 3, be provided with the front pellet locking shell hole 33 communicating with pin tumbler lock bulb hole, front 45, in pin tumbler lock bulb hole, front 45 and front pellet locking shell hole 32, be placed with front locking device 9, described front locking device 9 comprises and is placed on having front pellet 91 and being placed on flat pellet 92 in front pellet locking shell hole 33, front marble spring 93, envelope pearl 94 in pin tumbler lock bulb hole, front 45.
Be provided with bullet pin 52 at described side tumbler 5 tops, on key 2, be provided with the arc tartar coordinating with bullet pin 52.
The invention has the beneficial effects as follows:
1, because the movement of card is subject to limited post and key control, when this lock core is in the lock state, when inserting incorrect key, even the groove that slides into of all side tumbler is arranged in a row by certain mode, but due to the incorrect solution locked groove not coordinating with the V-arrangement dop of limited post on the key, the surface of incorrect key will withstand on the V-arrangement dop of limited post, limited post can not move to keyhole direction, and card also limited post restriction move to keyhole direction, the first square Access Division of card is still stuck in square lock slots, realizing can not release by sliding in the situation that groove is arranged in a row still of all side tumbler, greatly improve the difficulty of the unnormal unlocking of lock core.
2, because the Access Division at card two ends is all square, the groove that slides in the lock slots in the lock housing being mated and side tumbler is also square, like this, effectively prevents that card is subject to abnormal extruding and outside releasing slots.
3, because limited post and side tumbler are substantially vertical, increased the difficulty of the unnormal unlocking of lock core.
4, in the situation that not inserting correct key, be difficult in the keyhole in very little space, choose out front pellet, side tumbler, limited post simultaneously with other instruments, also just cannot unblank by rotational lock core.
[brief description of the drawings]
Fig. 1 is the decomposition chart of embodiments of the invention one;
Fig. 2 is the top view of embodiments of the invention one;
Fig. 3 is that the A-A place of Fig. 2 does not insert the sectional drawing before key;
Fig. 4 is that the B-B place of Fig. 2 does not insert the sectional drawing before key;
Fig. 5 is that the B-B place of Fig. 2 inserts the sectional drawing after key;
Fig. 6 is that embodiments of the invention one do not insert the longitudinal sectional drawing before key;
Fig. 7 is that embodiments of the invention one insert the longitudinal sectional drawing after key;
Fig. 8 is the decomposition chart of embodiments of the invention two;
Fig. 9 is the top view of embodiments of the invention two;
Figure 10 is that the C-C place of Fig. 9 does not insert the sectional drawing before key;
Figure 11 is that the D-D place of Fig. 9 does not insert the sectional drawing before key;
Figure 12 is that the D-D place of Fig. 9 inserts the sectional drawing after key;
Figure 13 is that embodiments of the invention two do not insert the longitudinal sectional drawing before key;
Figure 14 is that embodiments of the invention two insert the longitudinal sectional drawing after key.
[detailed description of the invention]
As Fig. 1-14, the invention discloses a kind of lockset, include lock body 1 and key 2, described lock body 1 comprises lock housing 3, the lock gall 4 that can rotate is housed in the installing hole 31 of lock housing 3, on installing hole 31 walls, have the square lock slots 32 of longitudinal setting, on lock gall 4, have keyhole 41, card standing groove 42, multiple side channels 43, described card standing groove 42 and side channel 43 are all the sides at keyhole, described side channel 43 and keyhole almost parallel, described card standing groove 42 is substantially vertical with keyhole, card standing groove 42 is corresponding with lock slots 32, multiple side channels 43 are arranged between keyhole 41 and card standing groove 42, described side channel 43 upper ends communicate with keyhole 41, described side channel 43 lower ends communicate with card standing groove 42.The side tumbler 5 coordinating with key 2 is housed in described side channel 43, be provided with the square groove 51 that slides in side tumbler 5 bottoms, card 6 and card back-moving spring 7 are housed in card standing groove 42, the outer end of described card 6 is provided with the first square Access Division 61 coordinating with square lock slots 32, the inner of described card 6 is provided with and square the second square Access Division 62 that groove 51 coordinates that slides into, on lock gall 4, be also provided with the card stopper slot 44 that keyhole 41 and card standing groove 42 are communicated with, card stopper slot 44 is substantially vertical with side channel, in described card stopper slot 44, be placed with the limited post 8 that can limit card 6 and move up and down position, described limited post 8 is provided with V-arrangement dop 81 near one end of keyhole 41, on described key 2, be provided with the V-arrangement solution locked groove 21 coordinating with described V-arrangement dop 81, described limited post 8 slides into V-arrangement solution locked groove 21 at V-arrangement dop 81 and allows described card 6 to be locked in lock gall when interior.
The shape of described V-arrangement solution locked groove 21 refers to the little groove in the large end of opening, and the shape of cell wall can be designed to the shape such as linear or camber line as required, as long as the little groove part in the large end of opening is the scope of V-arrangement solution locked groove 21.
In the time inserting correct key 2, arc tartar on the key coordinates with the bullet pin 52 in side tumbler 5, promote side tumbler 5 moves and finally makes the square groove 51 that slides into be arranged in a row in side channel, V-arrangement dop 81 on limited post 8 is aimed at V-arrangement solution locked groove 21 on the key, card back-moving spring 7 pushes card 6 to keyhole direction, V-arrangement dop 81 is slided in V-arrangement solution locked groove 21, the second square Access Division 62 of described card 6 slides into square the sliding in groove 51 of side tumbler simultaneously, the lock slots that now lock housing is left in first of card 6 the square Access Division 61 is retracted in card standing groove 42, remove the restriction to lock gall, rotation lock gall is realized and being unblanked.In the time extracting key, V-arrangement dop 81 can slide along 21 climbings of V-arrangement solution locked groove, limited post 8 moves towards the direction away from keyhole, limited post 8 actuating card 6 synchronizing movings, when V-arrangement dop 81 skids off after V-arrangement solution locked groove 21, the second square Access Division 62 of card departs from a row simultaneously and slides into groove 51, continue outwards to pull key, the arc tartar of key can promote side tumbler and move, extracting key trailing flank pellet is upset, the second square Access Division of card can enter in square lock slots, and lock gall is locked.
In order to protect the pellet in lockset, in the lock housing 3 of lock body 1 and lock gall 4, anti-drilling steel nail 10 is housed, avoid illegal picking lock person violence damage pellet.
Because limited post is different from card matching relationship, the present invention designs following two kinds of embodiment:
Embodiment mono-:
As Fig. 1-7, described limited post 8 is formed in one with described card 6, and described limited post 8 is connected on card 6 away from one end one of keyhole 41.
Described card stopper slot 44 is arranged between adjacent side channel 43 or side channel 43 sides.
The opposite side that is positioned at described keyhole 41 on described lock gall 4 is also provided with the pin tumbler lock bulb hole, front 45 that at least one row communicates with keyhole 41, pin tumbler lock bulb hole, front 45 is roughly vertical with keyhole, in lock housing 3, be provided with the front pellet locking shell hole 33 communicating with pin tumbler lock bulb hole, front 45, in pin tumbler lock bulb hole, front 45 and front pellet locking shell hole 33, be placed with front locking device 9, described front locking device 9 comprises and is placed on having front pellet 91 and being placed on the flat pellet 92 in front pellet locking shell hole 33 in pin tumbler lock bulb hole, front 45, front marble spring 93, envelope pearl 94.
In the time inserting correct key 2, arc tartar on the key back side coordinates with the bullet pin 52 in side tumbler 5, promote side tumbler 5 moves and finally makes the square groove 51 that slides into be arranged in a row in side channel, V-arrangement dop 81 on limited post 8 is aimed at the V-arrangement solution locked groove 21 on the key back side, card back-moving spring 7 pushes card 6 to keyhole direction, the limited post 8 being wholely set on card 6 synchronously moves to keyhole direction, until V-arrangement dop 81 slides in V-arrangement solution locked groove 21, the second square Access Division 62 of described card 6 slides into square the sliding in groove 51 of side tumbler simultaneously, the lock slots that now lock housing is left in first of card 6 the square Access Division 61 is retracted in card standing groove 42, front pellet tartar on key 2 fronts promotes a row front pellet 91 and moves, until all fronts pellet 91 is tangent with the joint of flat pellet 92 and the installing hole of lock housing, now all pellets and card, to the lock gall restriction that unlocks, rotate lock gall realization and unblank.
In the time extracting key, V-arrangement dop 81 can slide along 21 climbings of V-arrangement solution locked groove, card 6 moves towards the direction away from keyhole, when V-arrangement dop 81 skids off after V-arrangement solution locked groove 21, the second square Access Division 62 of card departs from a row simultaneously and slides into groove 51, continues outwards to pull key, and the arc tartar of key can promote side tumbler and move, extract key trailing flank pellet and upset, the second square Access Division of card can enter in square lock slots; Front pellet 91 moves towards keyhole under the effect of front marble spring 93, a part for front pellet stretches in keyhole, the bullet pin of front pellet and side tumbler is misplacing and is blocking mutually along keyhole length direction, and flat pellet 92 is stuck between lock gall and lock housing, and realization is locked.
Embodiment bis-:
As Fig. 8-14, described limited post 8 and described card 6 split settings, on limited post 8, be provided with the first annular snap platform 82, in described card stopper slot 44, be provided with and can block the first annular snap platform 82 and prevent that limited post 8 from deviating from the second annular snap platform 441 of card stopper slot 44.
Described card stopper slot 44 is arranged between adjacent side channel 43 or side channel 43 sides.
The opposite side that is positioned at described keyhole 41 on described lock gall 4 is also provided with the pin tumbler lock bulb hole, front 45 that at least one row communicates with keyhole 41, pin tumbler lock bulb hole, front 45 is roughly vertical with keyhole, in lock housing 3, be provided with the front pellet locking shell hole 33 communicating with pin tumbler lock bulb hole, front 45, in pin tumbler lock bulb hole, front 45 and front pellet locking shell hole 33, be placed with front locking device 9, described front locking device 9 comprises and is placed on having front pellet 91 and being placed on the flat pellet 92 in front pellet locking shell hole 33 in pin tumbler lock bulb hole, front 45, front marble spring 93, envelope pearl 94.
In the time inserting correct key 2, arc tartar on the key back side coordinates with the bullet pin 52 in side tumbler 5, promote side tumbler 5 moves and finally makes the square groove 51 that slides into be arranged in a row in side channel, V-arrangement dop 81 on limited post 8 is aimed at the V-arrangement solution locked groove 21 on the key back side, card back-moving spring 7 pushes card 6 to keyhole direction, card 6 promotes limited post 8 and moves to keyhole direction, until V-arrangement dop 81 slides in V-arrangement solution locked groove 21, the second square Access Division 62 of described card 6 slides into square the sliding in groove 51 of side tumbler simultaneously, the lock slots that now lock housing is left in first of card 6 the square Access Division 61 is retracted in card standing groove 42, front pellet tartar on key 2 fronts promotes a row front pellet 91 and moves, until all fronts pellet 91 is tangent with the joint of flat pellet 92 and the installing hole of lock housing, now all pellets and card, to the lock gall restriction that unlocks, rotate lock gall realization and unblank.
In the time extracting key, V-arrangement dop 81 can slide along 21 climbings of V-arrangement solution locked groove, limited post 8 moves towards the direction away from keyhole, limited post 8 actuating cards 6 are moved to the lock slots of lock housing, when V-arrangement dop 81 skids off after V-arrangement solution locked groove 21, the second square Access Division 62 of card 6 departs from a row simultaneously and slides into groove 51, continue outwards to pull key, the arc tartar of key can promote side tumbler and move, extract key trailing flank pellet and upset, the second square Access Division of card can enter in square lock slots; Front pellet 91 moves towards keyhole under the effect of front marble spring 93, a part for front pellet stretches in keyhole, the bullet pin of front pellet and side tumbler is misplacing and is blocking mutually along keyhole length direction, and flat pellet 92 is stuck between lock gall and lock housing, and realization is locked.
Above-described embodiment is only preferred embodiment of the present utility model; can not limit protection domain of the present utility model with this, the variation of any unsubstantiality that those skilled in the art does on basis of the present utility model and replacement all belong to protection domain of the present utility model.
Claims (7)
1. a lockset, include lock body (1) and key (2), described lock body (1) comprises lock housing (3), the lock gall (4) that can rotate is housed in the installing hole (31) of lock housing (3), it is characterized in that having the square lock slots (32) of longitudinal setting on installing hole (31) wall, on lock gall (4), have keyhole (41), the card standing groove (42) corresponding with lock slots (32) and be arranged on keyhole (41) and card standing groove (42) between multiple side channels (43), described side channel (43) upper end communicates with keyhole (41), described side channel (43) lower end communicates with card standing groove (42), the side tumbler (5) coordinating with key (2) is housed in side channel (43), be provided with the square groove (51) that slides in side tumbler (5) bottom, card (6) and card back-moving spring (7) are housed in card standing groove (42), the outer end of described card (6) is provided with the first square Access Division (61) coordinating with square lock slots (32), the inner of described card (6) is provided with and square the second square Access Division (62) that groove (51) coordinates that slides into, on lock gall (4), be also provided with the card stopper slot (44) of keyhole (41) and card standing groove (42) connection, in described card stopper slot (44), be placed with the limited post (8) that can limit card (6) and move up and down position, described limited post (8) is provided with V-arrangement dop (81) near one end of keyhole (41), on described key (2), be provided with the V-arrangement solution locked groove (21) coordinating with described V-arrangement dop (81), described limited post (8) allows described card (6) to be locked in lock gall in V-arrangement dop (81) slides into V-arrangement solution locked groove (21) time.
2. a kind of lockset according to claim 1, it is characterized in that described limited post (8) and described card (6) are formed in one, described limited post (8) is connected on card (6) away from one end one of keyhole (41).
3. a kind of lockset according to claim 1, it is characterized in that described limited post (8) and described card (6) split setting, on limited post (8), be provided with the first annular snap platform (82), in described card stopper slot (44), be provided with and can block the first annular snap platform (82) and prevent that limited post (8) from deviating from the second annular snap platform (441) of card stopper slot (44).
4. according to a kind of lockset described in claim 2 or 3, it is characterized in that described card stopper slot (44) is arranged between adjacent side channel (43) or side channel (43) side.
5. according to a kind of lockset described in claim 2 or 3, it is characterized in that institute's card stopper slot (44) is substantially vertical with side channel (43), the limited post in described card stopper slot (44) is substantially vertical with the side tumbler in side channel (43).
6. according to a kind of lockset described in claim 2 or 3, it is characterized in that the opposite side that is positioned at described keyhole (41) on described lock gall (4) is also provided with the pin tumbler lock bulb hole, front (45) that at least one row communicates with keyhole (41), in lock housing (3), be provided with the front pellet locking shell hole (33) communicating with pin tumbler lock bulb hole, front (45), in pin tumbler lock bulb hole, front (45) and front pellet locking shell hole (32), be placed with front locking device (9), described front locking device (9) comprises and is placed on having front pellet (91) and being placed on the flat pellet (92) in front pellet locking shell hole (33) in pin tumbler lock bulb hole, front (45), front marble spring (93), envelope pearl (94).
7. according to a kind of lockset described in claim 2 or 3, it is characterized in that being provided with bullet pin (52) at described side tumbler (5) top, on key (2), be provided with the arc tartar coordinating with bullet pin (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201297.3U CN203795977U (en) | 2014-04-23 | 2014-04-23 | Lock core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201297.3U CN203795977U (en) | 2014-04-23 | 2014-04-23 | Lock core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203795977U true CN203795977U (en) | 2014-08-27 |
Family
ID=51378201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420201297.3U Expired - Lifetime CN203795977U (en) | 2014-04-23 | 2014-04-23 | Lock core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203795977U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899152A (en) * | 2014-04-23 | 2014-07-02 | 中山市基信锁芯有限公司 | Lock cylinder |
| CN105113860A (en) * | 2015-09-17 | 2015-12-02 | 中山市基信锁芯有限公司 | Technological opening prevention lock cylinder |
-
2014
- 2014-04-23 CN CN201420201297.3U patent/CN203795977U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899152A (en) * | 2014-04-23 | 2014-07-02 | 中山市基信锁芯有限公司 | Lock cylinder |
| CN103899152B (en) * | 2014-04-23 | 2016-08-24 | 中山市基信锁芯有限公司 | A kind of lock core |
| CN105113860A (en) * | 2015-09-17 | 2015-12-02 | 中山市基信锁芯有限公司 | Technological opening prevention lock cylinder |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |