CN102864987B - All-around locking mechanism with upper, lower, left and right sides and drawer type safe deposit box - Google Patents
All-around locking mechanism with upper, lower, left and right sides and drawer type safe deposit box Download PDFInfo
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- CN102864987B CN102864987B CN201210373418.8A CN201210373418A CN102864987B CN 102864987 B CN102864987 B CN 102864987B CN 201210373418 A CN201210373418 A CN 201210373418A CN 102864987 B CN102864987 B CN 102864987B
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- planker
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- locking mechanism
- dead bolt
- chute
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Abstract
The invention provides a full-function locking mechanism with four sides, namely an upper side, a lower side, a left side and a right side, and provides a drawer type safe deposit box using the locking mechanism. A kind of all-round locking mechanism and drawer type safe deposit box using this locking mechanism of all sides about up and down, including: the upper lock tongue and the lower lock tongue are arranged in a space formed by the door rear cover and the door plate and can be locked in the upper stop strip and the lower lock tongue hole of the box body respectively. The locking and unlocking of the upper, lower and guide rail lock tongues are realized through the gear rack, the sliding chute and the like, the locking and unlocking device is reliable and stable, and the possible jamming of a lever mechanism is avoided; the safety lock bolt is controlled independently, so that the reliability is improved; set up emergent latch mechanism, for forgetting harmless relieving the locking and facilitating behind the password, the structure is simpler.
Description
Technical field
The present invention relates to strongbox technical field, specifically, relating to a kind of four sides up and down all can latch mechanism and use the drawer type safe deposit box of this locking mechanism.
Background technology
Safe deposit box belongs to a kind of security product, for depositing valuables, as jewelry, coin, vital document etc., generally can be divided into mechanical type and electronic type two kinds, at present, electronic type occupies most of market with its safer, convenient, light and handy advantage, the utilization particularly in the safe deposit box of portable, also more general.
Traditional strongbox (cabinet) its structure mainly comprises with the casing of doorframe, matches and the pivot pin door locking mechanism that is connected to the door-plate on doorframe and door-plate and doorframe can be locked together with casing.Traditional door locked structure comprises the slide plate being arranged on the door-plate back side, front locking tongue link with slide plate, and the driving mechanism of driving slide plate movement.For strengthening the reliability of locking mechanism locking, some locking mechanisms are also provided with upper and lower slide plate, and the upper and lower locking tongue to link with upper and lower slide plate, this upper and lower slide plate can move up and down with it in slide plate horizontal sliding process, this locking mechanism not only can in front side by locking door, also can in upper and lower both direction by locking door, the fixing of locking door further strengthens.
For strengthening the locked fixing of door-plate further, strengthening the firmness be combined with each other between doorframe and door-plate, reaching good theftproof performance, therefore, on one has, lower door locked and front, the locking mechanism of back door locking is invented, and a kind of safe door structure as disclosed in the notification number a kind of safe door structure of Chinese utility model patent that is CN2613570Y, comprises door locked, lower door locked, opposite side door locked and upper, lower switch block, described is upper, lower switch block is respectively equipped with two long slot bores be mutually triangularly arranged and the fulcrum that switch block is rotated relative to door-plate, described upper door locked, lower door locked is respectively by described upper, lower switch block wherein one can provide its long slot bore moving surplus and upper, lower switch block is connected, described jam plate upper, downside is then respectively by described, another on lower switch block can provide its long slot bore moving surplus and upper, lower switch block is connected, and described opposite side door locked is connected by link gear and jam plate.Therefore, along with the rotation of lock core, when driving jam plate to move, switch block and link gear can be made accordingly action to occur, thus upper and lower door locked and side door lock are correspondingly stretched in casing surely, and door-plate four sides is incorporated on casing securely, thus add by the difficulty of prizing, strengthen the safety of strongbox, to meet the requirement of people to strongbox.
Summary of the invention
The invention provides the one all-round locking mechanism in four sides up and down, and provide a kind of drawer type safe deposit box using this kind of locking mechanism.
The technical problem that will solve required for the present invention, can be achieved through the following technical solutions:
A first aspect of the present invention, one is the all-round locking mechanism in four sides up and down, it is characterized in that, comprising: be arranged in cover behind the door and upper lock tongue in space that door-plate is formed and lower lock head tongue, upper lock tongue and lower dead bolt can be locked under seam bar and casing in dead bolt hole respectively.
In the present invention, described cover is behind the door provided with chute, motor is fixedly connected with motor planker, and can along slide, and upper lock tongue is arranged on above planker, the upper hopper chute being parallel to the upper lock tongue direction of motion is provided with in the middle part of upper planker, upper planker can slide along upper hopper chute, and upper planker is also provided with perpendicular to the vertical chute in paper direction, this vertical chute engages with the eccentric disc bearing pin on motor eccentric disc, planker tooth bar is provided with, planker rack and pinion engagement on this on the right side of upper planker.
Described lower dead bolt is arranged on below lower planker, lower planker tooth bar is provided with on the left of lower planker, this lower planker rack and pinion engagement, middle and upper part is provided with the gliding groove being parallel to the lower dead bolt direction of motion, lower planker can slide along gliding groove, lower planker middle and lower part is provided with and is parallel to paper direction and is the oblique chute of an angle with the lower dead bolt direction of motion, and the sliding pin be fixedly mounted on cross slide can slide in oblique chute.
Be provided with guide rail dead bolt on the right side of described cross slide, middle part is provided with the sideslip groove being parallel to the guide rail dead bolt direction of motion.
Installed circuit mainboard in cover behind the door, circuit mainboard is connected by wire and battery case; By electric wire and associated electric motor, by wire with comprise nixie display, the digital control device of button is connected.
In the present invention, comprise cross further to meet an urgent need lock construction, it comprises connecting pin, connecting rod, junction plate, the emergent lock of cross, fork pin, fork, and fork can rotate, the shift fork other end is rotatably connected on connecting rod one end, and the connecting pin on the connecting rod other end and upper planker is rotationally connected.
In the present invention, comprise further and prevent beaing safety lock structure, it comprises safeguard and is welded on junction plate, conus elasticus bearing pin, locating hole, stage clip, flat shim, jump ring, insurance support, safety lock latch, the safety lock pin hole of one with safeguard, is movable matching relationship between conus elasticus bearing pin and locating hole.
Have a groove in the middle part of described safety lock latch, jump ring is fastened in groove, has flat shim on the right side of jump ring, and stage clip is compressed between jump ring and jump ring insurance support.
A second aspect of the present invention, a kind of drawer type safe deposit box using above-mentioned locking mechanism.
Compared with prior art, the invention has the advantages that: the locking being realized upper and lower and guide rail dead bolt by rack-and-pinion, chute etc. with unlock, reliable and stable, that avoids leverage to exist is stuck; Independent control safety lock latch, adds reliability; Arrange emergent latch mechanism, for harmless unlocking provides convenient after forgetting Password, structure is simpler.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is drawer type safe deposit box elevation of the present invention.
Fig. 2 is side partial sectional view of the present invention.
Fig. 3 is A-A sectional view in Fig. 2.
Fig. 4 is B-B sectional view in Fig. 3.
Fig. 5 is C-C sectional view in Fig. 3.
Description of reference numerals is as follows: 1, casing; 2, door-plate; 3, shake hands; 4, cross is met an urgent need lockhole; 5, oval thin film switch; 6, nixie display; 7, button; 8, USB interface; 9, trade mark lid is decorated; 10, upper lock tongue; 11, upper seam bar; 12, dead bolt hole under casing; 13, outer guide; 14, nut; 15, vertical columns; 16, countersunk head screw; 17, cover behind the door; 18, installing hole; 19, circuit mainboard, 20, electric wire; 21, travel switch; 22, spring leaf; 23, motor; 24, chute; 25, motor planker; 26, eccentric disc; 27, chute; 28, guide finger; 29, flat shim; 30, jump ring; 31, upper planker tooth bar; 32, upper planker; 33, gear; 34, alignment pin; 35, lower planker tooth bar; 36, lower planker; 37, guide finger; 38, chute; 39, battery case; 40, wire; 41, the sliding ball of guide rail; 42, interior guide rail; 43, guide rail dead bolt hole; 44, guide rail dead bolt; 45, cross slide; 46, chute; 47, guide finger; 48, lower dead bolt; 49, sliding pin; 50, chute; 51, connecting pin; 52, connecting rod; 53, junction plate; 54, the emergent lock of cross; 55, fork pin; 56, fork, 57, alignment pin; 58, bearing pin is connected; 59, Phillips-head screws; 60, safeguard; 61, conus elasticus bearing pin; 62, locating hole; 63, stage clip; 64, flat shim; 65, jump ring; 66, support is insured; 67, safety lock latch, 68, safety lock pin hole; 69, wire; 70, bearing pin is connected; 71, Phillips-head screws; 72, countersunk head screw; 73, drawer; 74, riveting nut; 75, bayonet lock; 76, countersunk head screw; 77, wire; 78, USB socket; 79, USB wiring board; 80, Phillips-head screws; 81, connecting stud; 82, key guiding jack; 83, guide strip; 84, Phillips-head screws; 85, Phillips-head screws; 86, shift fork draw-in groove; 87, cover stud behind the door; 88, Phillips-head screws; 89, safe deposit box installing hole; 90, eccentric disc bearing pin; 91, chute; 92, upper planker switch baffle plate.
Detailed description of the invention
In order to make technological means of the present invention, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, set forth the present invention further.
With reference to Fig. 1, Fig. 2 and Fig. 5, door-plate 2 is arranged on drawer 73, and handle 3 is arranged on door-plate with Phillips-head screws 85; Oval thin film switch 5 door-plate 2 is also equipped with, oval thin film switch 5 is provided with transparent display window, transmission display window can see the nixie display 6 be assemblied in door, and nixie display is for pointing out the latch mechanism duty, prompting input password etc. of electronic installation.Oval thin film switch 5 is also provided with button 7, lockhole 4 is met an urgent need in cross, the part such as USB interface 8 and decoration trade mark lid 9.
Be side partial sectional view of the present invention with reference to Fig. 2, Fig. 2, the all-round latch mechanism in four sides is arranged on and covers in 17 behind the door and in space that door-plate 2 is formed, cover 17 behind the door and pass through cover stud 87 He behind the door up and down.Philip's head screw 88 is fixed.Upper lock tongue 10 and lower dead bolt 48 can be locked under seam bar 11 and casing in dead bolt hole 12.The drawer 73 with guide rail in casing slides along the outer guide 13 of casing.Outer guide is fixed on casing 1 by nut 14, vertical columns 15, countersunk head screw 16.
With reference to Fig. 3, Fig. 4 and Fig. 5, Fig. 3 is A-A sectional view in Fig. 2, also the sectional view of the i.e. all-round latch mechanism in four sides up and down, and Fig. 4 is B-B sectional view in Fig. 3, and Fig. 5 is C-C sectional view in Fig. 3.As shown in Figure 3, cover in 17 behind the door and circuit mainboard 19, motor 23 and motor planker 25 have been installed, lock construction met an urgent need in upper planker 32, lower planker 36, cross slide 45, cross and have anti-ly beaten safety lock structure.
Wherein circuit mainboard 19 is connected by wire 40 and battery case 39; Be connected by electric wire 20 and motor 23, by wire 69 with comprise nixie display 6, the digital control device of button 7 is connected.
Motor 23 is fixedly connected with motor planker 25, and can slide along chute 24, is fixed on the alignment pin 57 covered on 17 behind the door and is inserted in chute 24.
Be provided with upper lock tongue 10 above upper planker 32, middle part is provided with the upper hopper chute 27 being parallel to the upper lock tongue direction of motion, and upper planker can slide along upper hopper chute 27.Upper planker is also provided with perpendicular to the vertical chute 91 in paper direction, this vertical chute 91 engages with the eccentric disc bearing pin 90 on motor eccentric disc 26.Be provided with planker tooth bar 31 on the right side of upper planker, on this, planker tooth bar 31 engages with gear 33.
Be provided with lower dead bolt 48 below lower planker 36, left side is provided with lower planker tooth bar 35, and this lower planker tooth bar 35 engages with gear 33.Middle and upper part is provided with the gliding groove 38 being parallel to the lower dead bolt direction of motion, and lower planker can slide along gliding groove 38.Lower planker 36 middle and lower part is provided with and is parallel to paper direction and is the oblique chute 50 of an angle with the lower dead bolt direction of motion, and the sliding pin 49 be fixedly mounted on cross slide 45 can slide in oblique chute 50.
Be provided with guide rail dead bolt 44 on the right side of cross slide 45, middle part is provided with the sideslip groove 46 being parallel to guide rail dead bolt 44 direction of motion.
Cross is met an urgent need, and lock construction comprises connecting pin 51, the parts such as lock 54, fork pin 55, fork 56 met an urgent need in connecting rod 52, junction plate 53, cross,
Thus fork 56 can be rotated, shift fork 56 other end is rotatably connected on connecting rod 52 one end, and the connecting pin 51 on connecting rod 52 other end and upper planker is rotationally connected.
The anti-safety lock structure that beats comprises safeguard 60 and is welded on junction plate 53, conus elasticus bearing pin 61, locating hole 62, stage clip 63, flat shim 64, jump ring 65 integrally with safeguard 60, insures the parts such as support 66, safety lock latch 67, safety lock pin hole 68.It is movable matching relationship between conus elasticus bearing pin 61 and locating hole 62.
Have a groove in the middle part of safety lock latch 67, jump ring 65 is fastened in groove, has flat shim on the right side of jump ring 65, and stage clip 63 is compressed between jump ring 65 and jump ring insurance support 66.
Operating principle of the present invention and process as follows:
The first, normal switch gate, works as follows:
During use, first 73 are pulled the drawer out, 4 joint 5# batteries are loaded in the battery case 39 covered behind the door on 17, after again 73, drawer being closed, by the 3-6 figure place password of 7 oneself setting of key system input, after pressing the confirmation of # keyboard again, circuit mainboard 19 starter motor 23, eccentric disc 26 is driven to rotate counterclockwise (as shown in Figure 4 arrow N), eccentric disc is provided with eccentric disc bearing pin 90, eccentric disc bearing pin 90 is fastened in the chute 91 on planker 32, eccentric disc bearing pin 90 rotates thus drives upper planker 32 to move upward by chute 91, upper lock tongue 10 moves upward to the angle locking position door-plate of seam bar 11, upper planker 32 moves upward simultaneously, and upper planker tooth bar 31 moves upward simultaneously, promotes gear 33 and rotates clockwise, thus drives lower planker tooth bar 35 and lower planker 36 to move downward, and lower dead bolt 48 to be locked under casing in dead bolt hole 12, in the process that above-mentioned lower planker 36 moves downward, the oblique chute 50 established on lower planker 36 creates the thrust of a horizontal direction in the process moved downward, promote sliding pin 49 and do horizontal movement to the right, sliding pin 49 drives cross slide 45 along chute 46, guide finger 47 slides to the right, thus guide rail dead bolt 44 is locked in guide rail lockhole 43.The time that all mechanisms automatically lock above is about 1.3 seconds, have rotated 1.3 seconds with rear motor 23 just stopping automatically when circuit mainboard 19 controls motor 23.All dead bolt lockings, by door locked.
When user opens the door, after input proper password, circuit mainboard 19 starter motor 23, drive eccentric disc 26 to rotate clockwise (as shown in Figure 4 arrow S), drive upper planker 32 to move downward together with upper lock tongue 10, when the upper planker switch baffle plate 92 on upper planker 32 encounters spring leaf 22 downwards by eccentric disc bearing pin 90 and chute 91, travel switch 21 will send signal makes motor 23 stop operating, meanwhile, upper lock tongue 10 has been retracted into downwards and has covered in 17 behind the door, completes unlocking action; While planker tooth bar 31 moves downward on above-mentioned, promote gear 33 and rotate counterclockwise, thus drive lower planker tooth bar 35 and lower planker 36 to move upward, drive lower dead bolt 48 to move up to be retracted into cover in 17 behind the door simultaneously and complete unlocking action; While above-mentioned lower planker 36 moves upward, lower planker 36 drives cross slide 45 to slide along chute 46 left by oblique chute 50 and sliding pin 49, thus drives guide rail dead bolt 44 to be retracted into cover in 17 behind the door and to complete unlocking action.All dead bolts unlock, and are unblanked by door.
The second, emergency key switch gate, works as follows:
Run into special circumstances, if battery is without electricity or after losing password, key to be met an urgent need lockhole 4 facing to cross, is inserted into cross and meets an urgent need in lock 54, then rotate clockwise cross and to meet an urgent need lock 54, fork 56 will be driven to rotate clockwise, shift fork 56 drivening rod 52 by connecting pin 51, drive motor planker 25 together with motor 23 along chute 24 slide downward, meanwhile, motor 23 is moved downward by planker 32 on eccentric disc bearing pin 90 and chute 91 direct pull, and all dead bolts unlock.Meanwhile, when upper planker switch baffle plate 92 move downward encounter spring leaf 22 time, travel switch 21 will send unlocking signal, circuit mainboard 19 will record the signal of key door lock just now automatically simultaneously, so that administrative staff need the record case of consulting key unlocking from electronic control system according to real work.
3rd, anti-safety lock structure operating principle of beaing is as follows:
As run into thief firmly beat cross meet an urgent need lock 54 time, the meet an urgent need junction plate 53 of lock of 54 crosses is housed run into and will produce certain position to internal strain after brute force is beaten and move, the safeguard 60 be now welded on junction plate 53 also synchronously can inwardly produce certain position and move, after above beaing deforms more than the numerical value of design code, locating hole 62 on safeguard 60 has departed from the annexation with conus elasticus bearing pin 61 because position is just now moved, now safety lock latch 67 has been rapidly inserted in safety lock pin hole 68 left under the elastic force effect of stage clip 63, thus together with interior guide rail 42 and outer guide 13 being locked in tightly, at this very moment, drawer safe deposit box just completes anti-permanent lock out action of beaing safety lock structure.At this time, thief just again cannot adopt the method for beaing to open drawer safe deposit box.
On only just preferred embodiment of the present invention be described, but can not be interpreted as it is limitations on claims.The present invention is not only confined to above embodiment, and its concrete structure allows to change.In a word, all various changes done in the protection domain of independent claims of the present invention are all in protection scope of the present invention.
Claims (5)
1. the all-round locking mechanism in four sides up and down, it is characterized in that, comprise: be arranged on the upper lock tongue in covering behind the door and in the space of door-plate formation and lower dead bolt, upper lock tongue and lower dead bolt can be locked under seam bar and casing in dead bolt hole respectively, described cover is behind the door provided with chute, motor is fixedly connected with motor planker, and can along slide, upper lock tongue is arranged on above planker, the upper hopper chute being parallel to the upper lock tongue direction of motion is provided with in the middle part of upper planker, upper planker can slide along upper hopper chute, upper planker also arranges vertical chute, this vertical chute engages with the eccentric disc bearing pin on motor eccentric disc, planker tooth bar is provided with on the right side of upper planker, planker rack and pinion engagement on this, described lower dead bolt is arranged on below lower planker, lower planker tooth bar is provided with on the left of lower planker, this lower planker rack and pinion engagement, middle and upper part is provided with the gliding groove being parallel to the lower dead bolt direction of motion, lower planker can slide along gliding groove, the setting of lower planker middle and lower part and the lower dead bolt direction of motion are the oblique chute of an angle, the sliding pin be fixedly mounted on cross slide can slide in oblique chute, guide rail dead bolt is provided with on the right side of described cross slide, middle part is provided with the sideslip groove being parallel to the guide rail dead bolt direction of motion, in described cover behind the door, circuit mainboard is installed, circuit mainboard is connected by wire and battery case, by electric wire and associated electric motor, by wire with comprise nixie display, the digital control device of button is connected.
2. the all-round locking mechanism in four sides up and down according to claim 1, it is characterized in that: comprise cross and to meet an urgent need lock construction, described cross lock construction of meeting an urgent need comprises connecting pin, connecting rod, junction plate, the emergent lock of cross, fork pin, fork, fork can rotate, the shift fork other end is rotatably connected on connecting rod one end, and the connecting pin on the connecting rod other end and upper planker is rotationally connected.
3. the all-round locking mechanism in four sides up and down according to claim 1, it is characterized in that: comprise and prevent beaing safety lock structure, the described anti-safety lock structure that beats comprises safeguard and is welded on junction plate, conus elasticus bearing pin, locating hole, stage clip, flat shim, jump ring, insurance support, safety lock latch, the safety lock pin hole of one with safeguard, is movable matching relationship between conus elasticus bearing pin and locating hole.
4. the all-round locking mechanism in four sides up and down according to claim 3, it is characterized in that: have a groove in the middle part of described safety lock latch, jump ring is fastened in groove, has flat shim on the right side of jump ring, stage clip is compressed between jump ring and insurance support.
5. one kind uses the drawer type safe deposit box of arbitrary described all-round locking mechanism in four sides up and down in claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210373418.8A CN102864987B (en) | 2012-09-27 | 2012-09-27 | All-around locking mechanism with upper, lower, left and right sides and drawer type safe deposit box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210373418.8A CN102864987B (en) | 2012-09-27 | 2012-09-27 | All-around locking mechanism with upper, lower, left and right sides and drawer type safe deposit box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102864987A CN102864987A (en) | 2013-01-09 |
| CN102864987B true CN102864987B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210373418.8A Active CN102864987B (en) | 2012-09-27 | 2012-09-27 | All-around locking mechanism with upper, lower, left and right sides and drawer type safe deposit box |
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| Country | Link |
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| CN (1) | CN102864987B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612491A (en) * | 2014-12-15 | 2015-05-13 | 广西大学 | Safe lockset |
| CN106272300B (en) * | 2016-08-30 | 2018-10-09 | 台州市金算子知识产权服务有限公司 | The article-storage device of four-way open-close |
| CN106193839B (en) * | 2016-08-31 | 2018-07-20 | 常州市凯程精密汽车部件有限公司 | Automobile tail gate locking system |
| CN106995100B (en) * | 2016-12-21 | 2018-11-30 | 泰兴市智谷科技孵化器中心 | A kind of novel box for material circulation locking device |
| CN106995099B (en) * | 2016-12-21 | 2019-02-19 | 柳州申通汽车科技有限公司 | A kind of modified box for material circulation locking device |
| CN108798361A (en) * | 2018-07-17 | 2018-11-13 | 武邑县多吉柜业有限公司 | Intelligent sliding door safety cabinet |
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| CN2613570Y (en) * | 2003-03-07 | 2004-04-28 | 宁波永发集团有限公司 | Safe door structure |
| CN101915028A (en) * | 2010-08-10 | 2010-12-15 | 德阳市盛堡锁业有限责任公司 | Lock with four-way bolt |
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| CN102654001A (en) * | 2012-05-25 | 2012-09-05 | 宣建民 | Anti-theft door |
| CN202899884U (en) * | 2012-09-27 | 2013-04-24 | 宁波万金现代钣金有限公司 | Drawer type safety-deposit box |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090151407A1 (en) * | 2007-12-13 | 2009-06-18 | San Lin | Door lock with automatic locking of deadbolt |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613570Y (en) * | 2003-03-07 | 2004-04-28 | 宁波永发集团有限公司 | Safe door structure |
| CN101956502A (en) * | 2009-07-13 | 2011-01-26 | 曹海康 | Latch mechanism for safe cabinet |
| CN101915028A (en) * | 2010-08-10 | 2010-12-15 | 德阳市盛堡锁业有限责任公司 | Lock with four-way bolt |
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| Publication number | Publication date |
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| CN102864987A (en) | 2013-01-09 |
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Address after: 315121 Hongshu Industrial Park, Dongqian Lake Tourist Resort, Ningbo, Zhejiang Province (No. 10, Shuangyu Road) Patentee after: Ningbo Wanjin Precision Technology Co.,Ltd. Address before: 315121 Hongshu Industrial Park, Dongqian Lake Tourist Resort, Ningbo, Zhejiang Province (No. 10, Shuangyu Road) Patentee before: NINGBO WANJIN MODERN SHEET METAL Co.,Ltd. |