CN106121372B - A kind of lock core and key - Google Patents
A kind of lock core and key Download PDFInfo
- Publication number
- CN106121372B CN106121372B CN201610720479.5A CN201610720479A CN106121372B CN 106121372 B CN106121372 B CN 106121372B CN 201610720479 A CN201610720479 A CN 201610720479A CN 106121372 B CN106121372 B CN 106121372B
- Authority
- CN
- China
- Prior art keywords
- lock
- key
- pearl
- tartar
- transverse sheet
- 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.)
- Active
Links
- 208000006558 Dental Calculus Diseases 0.000 claims abstract description 41
- 239000008188 pellet Substances 0.000 claims abstract description 33
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 239000011324 bead Substances 0.000 claims abstract description 8
- 239000004579 marble Substances 0.000 claims description 8
- 210000002421 cell wall Anatomy 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
- E05B27/0057—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B19/00—Keys; Accessories therefor
- E05B19/0017—Key profiles
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
- E05B27/0003—Details
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
- E05B27/0003—Details
- E05B27/0017—Tumblers or pins
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
- E05B27/0032—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with both axially and radially arranged tumbler pins or balls
Abstract
The invention discloses a kind of lock core and key, lock core includes lock housing, lock gall and key, and keyhole is provided on lock gall, is equipped with front locking device at the top of lock housing and lock gall, is arranged on the side of the lock housing and lock gall and is equipped with side lock apparatus；The side lock apparatus includes side bead pressing spring, side tumbler, transverse sheet compression spring and transverse sheet, the top of the side tumbler is equipped with the key slided into for a key part and slides into slot, it is equipped with the transverse sheet slided into for a part for transverse sheet below the side tumbler and slides into slot, it is equipped on a surface of the key and coordinates the tartar being unlocked with front locking device, it is equipped with to slide into slot with the key of all side tumblers and match on another surface of key and merges the raised line that push side face pellet moves left and right, the raised line protrudes from the surface of the side tumbler and is extended along the length direction of key.The present invention has simple in structure, puts the good advantage of instigation, anti-theft performance.
Description
【Technical field】
The present invention relates to a kind of lock core and keys.
【Background technology】
Present most of lock core on the market is since its structure is relatively simple, and people are more thorough to its research, thief
It can easily be opened within short several seconds, so current lock core anti-theft performance is poor, the life to the people and property peace
Prodigious threat is brought entirely, has been unable to meet most basic antitheft requirement of the people to lock core.
Currently on the market there are three the lock core of direction setting pellet, which includes front pellet, side tumbler and bottom
Transverse sheet, the top of side tumbler equipped with bullet pin and bottom is equipped with cross plate groove, be equipped with curved groove coordinate with bullet pin on the key, this
Although the lock core of structure is to protrude from side bullet due to there is the presence of bullet pin with higher anti-theft than common lock
Son, such thief can achieve the purpose that unlocking by professional tool to instigate bullet pin, because it is necessary to further promote lock
The anti-theft performance of core.
【Invention content】
The purpose of the present invention is overcoming the shortcomings of existing lock core, a kind of simple in structure, good lock core of anti-theft performance is provided.
In order to solve above-mentioned technical problem, the present invention uses following technical proposals：
A kind of lock core includes lock housing, lock gall and key, keyhole is provided on lock gall, at the top of lock housing and lock gall
Equipped with front locking device, it is arranged on the side of the lock housing and lock gall and side lock apparatus is installed；The side locking
Device includes side bead pressing spring, side tumbler, transverse sheet compression spring and transverse sheet, is provided in lock housing bottom interior wall longitudinally disposed rectangular
Lock slots are provided with transverse sheet placing groove corresponding with rectangular lock slots in lock gall bottom, and being provided with several settings in lock gall side exists
Side channel between keyhole and transverse sheet placing groove, the side channel upper end are communicated with keyhole, side channel lower end and transverse sheet placing groove phase
It is logical；Side bead pressing spring and side tumbler described in being placed with one group in each side channel, are placed with the transverse sheet pressure in transverse sheet placing groove
Spring and transverse sheet, the top of the side tumbler is equipped with slides into slot, the side tumbler lower section for the key that a key part slides into
Slot is slided into equipped with the transverse sheet that the part for transverse sheet slides into, is equipped on a surface of the key and matches with front locking device
The tartar that is unlocked is closed, is equipped on another surface of key and slides into slot with merging push side with the key of all side tumblers
The raised line that face pellet moves left and right, the raised line protrude from the surface of the side tumbler and extend along the length direction of key
Setting.
The front locking device includes several front marble holes being arranged at the top of lock housing and lock gall, in front pellet
Envelope pearl, front compression spring, flat pearl and front pellet are equipped in hole.
The side channel is separated with front marble hole and is arranged alternately, and the tartar includes the interval coordinated with the front pellet
The tartar solution locked groove of setting and it is arranged between tartar solution locked groove for the tartar protrusion that pushes front pellet to move up and down, it is described
Raised line include it is several with for the side tumbler pushing parts that push described side tumbler or so to move back and forth and several for positioning
The side tumbler solution lock section of the side tumbler, the side tumbler pushing part and side tumbler solution lock section alternate setting,
They are linked to be curved shape, and the side tumbler solution lock section is corresponding with tartar protrusion, and the side tumbler is moved portion and unlocked with tartar
Slot corresponds to.
The key two sides is identical setting, and the two sides of the key is both provided with tartar and raised line.
The transverse sheet placing groove is V-shaped groove or U-lag, the angular range of the both sides cell wall of the transverse sheet placing groove is 90 °-
110 °, the top of the transverse sheet is V-arrangement or U-shaped；It is V-shaped groove or U-lag that the key, which slides into slot, and the key slides into slot
The angular range of both sides cell wall is 90 ° -110 °, and the raised line is V-arrangement or U-shaped.
The flat pearl includes flat pearl mother pearl and peaceful pearl pearl disposed within, and the front pellet includes that front pellet is female
Pearl and the disposed within and sub- pearl of front pellet, the lower end of the lower end peace pearl pearl of flat pearl mother pearl respectively with front pellet mother pearl
Upper end and the sub- pearl of front pellet upper end contradict, between flat pearl mother pearl peace pearl pearl be equipped with positive face compression spring.
A kind of key, including hand-held part and solution lock section are equipped with and front locking device on a surface of the key
Coordinate the tartar being unlocked, the raised line coordinated with side lock apparatus is equipped on another surface of key, the raised line is convex
Surface for the side tumbler is simultaneously extended along the length direction of key.
The tartar includes the spaced tartar solution locked groove coordinated with the front locking device and is arranged in tartar
It includes that several side tumblers push to be used to push the tartar protrusion that front locking device moves up and down, the raised line between solution locked groove
Portion and several side tumbler solution lock sections, the side tumbler pushing part and side tumbler solution lock section alternate setting, they connect
At curved shape, the side tumbler solution lock section is corresponding with tartar protrusion, and it is corresponding with tartar solution locked groove that the side tumbler moves portion.
The key two sides is identical setting, and the two sides of the key is both provided with tartar and raised line.
Compared with prior art, the invention has the advantages that：The top of the side tumbler is equipped with for a key part
The key slided into slides into slot, and being equipped with the transverse sheet slided into for a part for transverse sheet below the side tumbler slides into slot, this sample hair
Bright is under lock-out state, in the case where being not inserted into the key to match with the present invention, due to side bullet after extracting key
The bullet pin that son does not protrude, it is difficult to instigation side tumbler is carried out in little space with other tools, so this lock core anti-theft performance
It is good, it is safe to use, reliable.
【Description of the drawings】
The present invention is described in further detail with specific implementation mode below in conjunction with the accompanying drawings：
Fig. 1 is the decomposition chart of the present invention；
Fig. 2 is the structural schematic diagram of the present invention；
Fig. 3 is the stereogram of the side tumbler of the present invention；
Fig. 4 is the stereogram of the key of the present invention；
Fig. 5 is the front view of the key of the present invention.
【Specific implementation mode】
Referring to Fig. 1-5, the invention discloses a kind of lock core, lock core includes lock housing 1, lock gall 2 and key 5, on lock gall 2
It is provided with keyhole 201, front locking device 3 is equipped at the top of lock housing 1 and lock gall 2, on the side of the lock housing 1 and lock gall 2
Setting is equipped with side lock apparatus 4；When in use, key 5, under the promotion and pulling of key 5, front locking device are inserted into
3 and side lock apparatus 4 release locking to lock gall 2 simultaneously, at this moment just can rotate lock gall 2 with key 5 to unlock.
The side lock apparatus 4 includes side bead pressing spring 41, side tumbler 42, transverse sheet compression spring 43 and transverse sheet 44,
It is provided with longitudinally disposed rectangular lock slots 101 in 1 bottom interior wall of lock housing, is provided in lock gall bottom opposite with rectangular lock slots 101
The transverse sheet placing groove 202 answered is provided with several side channels being arranged between keyhole 201 and transverse sheet placing groove 202 in lock gall side
203,203 upper end of the side channel is communicated with keyhole 201, and 203 lower end of side channel is communicated with transverse sheet placing groove 202；In each side channel
203 be placed with one group described in side bead pressing spring 41 and side tumbler 42, the transverse sheet compression spring 43 is placed in transverse sheet placing groove 202
With transverse sheet 44, the top of the side tumbler 42 is equipped with slides into slot 421, the side tumbler for the key that a key part slides into
42 lower sections are equipped with the transverse sheet that slides into of a part for transverse sheet 44 and slide into slot 422, be equipped on a surface of the key 5 with just
Face locking device 3 coordinates the tartar 51 being unlocked, and the key with all side tumblers 42 is equipped on another surface of key 5
The raised line 52 that slot 421 is moved left and right with merging push side face pellet 42 is slided into, the raised line protrudes from the side tumbler 42
Surface is simultaneously extended along the length direction of key.The present invention after extracting key be lock-out state under, be not inserted into
In the case of the key that the present invention matches, the bullet pin that is not protruded due to side tumbler, it is difficult to other tools in very little sky
Between carry out instigation side tumbler, it is safe to use, reliable so this lock core anti-theft performance is good.
The front locking device 3 includes several front marble holes being arranged at the top of lock housing 1 and lock gall 2, in front
Envelope pearl 31, front compression spring 32, flat pearl 33 and front pellet 34 are equipped in marble hole.
The side channel 203 is separated with front marble hole and is arranged alternately, and the tartar 51 includes matching with the front pellet 34
The spaced tartar solution locked groove 511 closed and setting are used to that front pellet be pushed to move up and down between tartar solution locked groove 511
Tartar protrusion 512, the raised line 52 include it is several with for the side tumblers that push described side tumbler or so to move back and forth
Pushing part 521 and several side tumbler solution lock sections 522 for positioning the side tumbler, the side tumbler pushing part 521
Setting is alternated with side tumbler solution lock section 522, they are linked to be curved shape, the side tumbler solution lock section 522 and tartar
Protrusion 512 corresponds to, and it is corresponding with tartar solution locked groove 511 that the side tumbler moves portion 521.
In order to which positive and negative insertion key can unlock, the key two sides is identical setting, and the two sides of the key is all provided with
It is equipped with tartar 51 and raised line 52.
The transverse sheet placing groove 202 is V-shaped groove or U-lag, the angular range of the both sides cell wall of the transverse sheet placing groove 202
It is 90 ° -110 °, the transverse sheet（44）Top be V-arrangement or U-shaped；It is V-shaped groove or U-lag, institute that the key, which slides into slot 421,
The angular range for stating the both sides cell wall that key slides into slot 421 is 90 ° -110 °, the raised line（52）For V-arrangement or U-shaped.
The flat pearl 33 includes flat pearl mother pearl 331 and peaceful pearl pearl 332 disposed within, the front pellet 34 include
Front pellet mother pearl 341 and the disposed within and sub- pearl 342 of front pellet, the lower end peace pearl pearl 332 of flat pearl mother pearl 331
Lower end is contradicted with the upper end of front pellet mother pearl 341 and the upper end of the sub- pearl of front pellet 342 respectively, in 331 peace of flat pearl mother pearl
Positive face compression spring 330 is equipped between pearl pearl 332.
In lock-out state, its bottom under the action of transverse sheet compression spring 43 of transverse sheet 44 falls into the rectangular lock slots positioned at lock housing 1
In 101.In the locked state, the transverse sheet in the side tumbler 42 slides into slot 422 and is staggered, when injecting key 5, thereon
Raised line so that side tumbler 42 is moved horizontally while compressing side bead pressing spring 41, the transverse sheet in last side tumbler 42 slides into slot
422 just form a line, and the transverse sheet in side tumbler 42 slides into slot 422 with transverse sheet 44 to just, at this moment rotating key 5, cross
Piece 44 under the pressure effect of transverse sheet compression spring 43 toward the movement of lock gall 2 center position and some enter the transverse sheet of side tumbler 42
It slides into slot 422, until the bottom of transverse sheet 44 and 2 outer diameter of lock gall are tangent, lock gall 2 can be rotated arbitrarily at this time, to reach
The purpose of opening lock master.
Claims (8)
1. a kind of lock core includes lock housing (1), lock gall (2) and key (5), keyhole (201) is provided on lock gall (2), is being locked
The top of shell (1) and lock gall (2) is equipped with front locking device (3), and installation is arranged on the side of the lock housing (1) and lock gall (2)
There is side lock apparatus (4)；It is characterized in that the side lock apparatus (4) includes side bead pressing spring (41), side tumbler
(42), transverse sheet compression spring (43) and transverse sheet (44) are provided with longitudinally disposed rectangular lock slots (101) in lock housing (1) bottom interior wall,
It is provided with transverse sheet placing groove (202) corresponding with rectangular lock slots (101) in lock gall bottom, several settings are provided in lock gall side
Side channel (203) between keyhole (201) and transverse sheet placing groove (202), side channel (203) upper end and keyhole (201)
It communicates, side channel (203) lower end is communicated with transverse sheet placing groove (202)；Side bead pressing spring described in being placed with one group in each side channel (203)
(41) and side tumbler (42) the transverse sheet compression spring (43) and transverse sheet (44), the side, are placed in transverse sheet placing groove (202)
The top of face pellet (42) is equipped with slides into slot (421) for the key that a key part slides into, and is set below the side tumbler (42)
There is the transverse sheet that the part for transverse sheet (44) slides into slide into slot (422), is equipped with and front on a surface of the key (5)
Locking device (3) coordinates the tartar (51) being unlocked, and is equipped with and all side tumblers (42) on another surface of key (5)
Key slide into slot (421) and protrude from described with push side face pellet (42) raised line (52) for moving left and right, the raised line is merged
The surface of side tumbler (42) is simultaneously extended along the length direction of key, and the transverse sheet placing groove (202) is V-shaped groove or U
The angular range of shape slot, the both sides cell wall of the transverse sheet placing groove (202) is 90 ° -110 °, and the top of the transverse sheet (44) is V
Shape or U-shaped；It is V-shaped groove or U-lag that the key, which slides into slot (421), and the key slides into the folder of the both sides cell wall of slot (421)
Angular region is 90 ° -110 °, and the raised line (52) is V-arrangement or U-shaped.
2. a kind of lock core according to claim 1, it is characterised in that the front locking device (3) includes being arranged in lock housing
(1) and several front marble holes at the top of lock gall (2) envelope pearl (31), front compression spring (32), flat, is equipped in the marble hole of front
Pearl (33) and front pellet (34).
3. a kind of lock core according to claim 2, it is characterised in that the side channel (203) separates with front marble hole to be replaced
Setting, the tartar (51) include the spaced tartar solution locked groove (511) coordinated with the front pellet (34) and setting
For pushing the tartar protrusion (512) that front pellet moves up and down, the raised line (52) to include between tartar solution locked groove (511)
It is several with for the side tumbler pushing part (521) that pushes described side tumbler or so to move back and forth and several for described in positioning
The side tumbler solution lock section (522) of side tumbler, between the side tumbler pushing part (521) and side tumbler solution lock section (522)
Every being arranged alternately, they are linked to be curved shape, and the side tumbler solution lock section (522) is corresponding with tartar protrusion (512), the side
Face pellet pushing part (521) is corresponding with tartar solution locked groove (511).
4. a kind of lock core according to claim 2 or 3, it is characterised in that the key two sides is identical setting, the key
The two sides of spoon is both provided with tartar (51) and raised line (52).
5. a kind of lock core according to claim 2 or 3, the flat pearl (33) includes flat pearl mother pearl (331) and disposed within
The sub- pearl of flat pearl (332), the front pellet (34) includes front pellet mother pearl (341) and pellet pearl in front disposed within
(342), the lower end of the lower end peace pearl pearl (332) of flat pearl mother pearl (331) respectively with the upper end of front pellet mother pearl (341) and
The upper end of the sub- pearl of front pellet (342) contradicts, and positive face compression spring is equipped between the peaceful pearl pearl (332) of flat pearl mother pearl (331)
(330)。
6. a kind of key, including hand-held part and solution lock section, it is characterised in that be equipped with and power on a surface of the key (5)
Profit requires front locking device (3) in one of 1-5 lock cores to coordinate the tartar (51) being unlocked, in the another of key (5)
Surface is equipped with the raised line (52) coordinated with side lock apparatus (4) in one of the claim 1-5 lock cores, and the raised line is convex
Surface for the side tumbler (42) in one of the claim 1-5 lock cores is simultaneously set along the extension of the length direction of key
It sets, the raised line (52) is V-arrangement or U-shaped.
7. a kind of key according to claim 6, which is characterized in that the tartar (51) includes being filled with the front locking
It sets the spaced tartar solution locked groove (511) of (3) cooperation and is arranged between tartar solution locked groove (511) for pushing positive lock
Determine the tartar protrusion (512) that device (3) moves up and down, the raised line (52) include several side tumbler pushing parts (521) and if
Dry side tumbler solution lock section (522), the side tumbler pushing part (521) and side tumbler solution lock section (522) are alternated and are set
It sets, they are linked to be curved shape, and the side tumbler solution lock section (522) is corresponding with tartar protrusion (512), and the side tumbler pushes away
Dynamic portion (521) are corresponding with tartar solution locked groove (511).
8. a kind of key described according to claim 6 or 7, it is characterised in that the key two sides is identical setting, the key
The two sides of spoon is both provided with tartar (51) and raised line (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610720479.5A CN106121372B (en) | 2016-08-25 | 2016-08-25 | A kind of lock core and key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610720479.5A CN106121372B (en) | 2016-08-25 | 2016-08-25 | A kind of lock core and key |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106121372A CN106121372A (en) | 2016-11-16 |
| CN106121372B true CN106121372B (en) | 2018-08-21 |
Family
ID=57273781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610720479.5A Active CN106121372B (en) | 2016-08-25 | 2016-08-25 | A kind of lock core and key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106121372B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165482B (en) * | 2017-06-15 | 2023-06-27 | 中山市创芯安防科技有限公司 | Novel safety lock core |
| CN107130845A (en) * | 2017-06-20 | 2017-09-05 | 亚萨合莱保德安（台州）安防科技有限公司 | A kind of angle marble lock |
| CN110630102A (en) * | 2019-09-30 | 2019-12-31 | 中山市皇鼎五金制品有限公司 | Anti-theft lock core and key thereof |
| CN110607947B (en) * | 2019-09-30 | 2024-03-22 | 中山市基信锁芯有限公司 | Lock cylinder structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014210393A1 (en) * | 2014-06-03 | 2015-12-03 | Aug. Winkhaus Gmbh & Co. Kg | lock cylinder |
| CN104314374B (en) * | 2014-10-15 | 2016-08-31 | 冯伟坚 | Lock core and adaptive key |
| CN205976764U (en) * | 2016-08-25 | 2017-02-22 | 中山火炬开发区坚诚达五金加工厂 | Lock cylinder and key |
-
2016
- 2016-08-25 CN CN201610720479.5A patent/CN106121372B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106121372A (en) | 2016-11-16 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170601 Address after: 528400, one of the first second storey factories in the mausoleum Village Industrial Zone, Torch Development Zone, Guangdong, Zhongshan Applicant after: ZHONGSHAN TIANZHUO HARDWARE TECHNOLOGY Co.,Ltd. Address before: 528400, Guangdong, Zhongshan Province Torch Development Zone, Ling Gang Industrial Zone second, the first floor to the East Applicant before: ZHONGSHAN TORCH DEVELOPMENT ZONE JIANCHENGDA HARDWARE PROCESSING FACTORY |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Lock cylinder and key Effective date of registration: 20191118 Granted publication date: 20180821 Pledgee: Science and Technology Branch of Torch Development Zone of Zhongshan Rural Commercial Bank Co.,Ltd. Pledgor: ZHONGSHAN TIANZHUO HARDWARE TECHNOLOGY Co.,Ltd. Registration number: Y2019980000631 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230516 Granted publication date: 20180821 Pledgee: Science and Technology Branch of Torch Development Zone of Zhongshan Rural Commercial Bank Co.,Ltd. Pledgor: ZHONGSHAN TIANZHUO HARDWARE TECHNOLOGY Co.,Ltd. Registration number: Y2019980000631 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A lock cylinder and key Effective date of registration: 20230608 Granted publication date: 20180821 Pledgee: Science and Technology Branch of Torch Development Zone of Zhongshan Rural Commercial Bank Co.,Ltd. Pledgor: ZHONGSHAN TIANZHUO HARDWARE TECHNOLOGY Co.,Ltd. Registration number: Y2023980043196 |