CN103314169B - Locking safety lock - Google Patents
Locking safety lock Download PDFInfo
- Publication number
- CN103314169B CN103314169B CN201180002561.XA CN201180002561A CN103314169B CN 103314169 B CN103314169 B CN 103314169B CN 201180002561 A CN201180002561 A CN 201180002561A CN 103314169 B CN103314169 B CN 103314169B
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- Prior art keywords
- core
- pedestal
- lock core
- pellet
- thread segment
- 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.)
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000008188 pellet Substances 0.000 claims abstract description 52
- 210000002435 tendon Anatomy 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 5
- 230000003137 locomotive effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C5/00—Fastening devices with bolts moving otherwise than only rectilinearly and only pivotally or rotatively
- E05C5/02—Fastening devices with bolts moving otherwise than only rectilinearly and only pivotally or rotatively both moving axially and turning about their axis to secure the wing
- E05C5/04—Fastening devices with bolts moving otherwise than only rectilinearly and only pivotally or rotatively both moving axially and turning about their axis to secure the wing performing both movements simultaneously, e.g. screwing into a keeper
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
- E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Patch Boards (AREA)
- Lock And Its Accessories (AREA)
Abstract
A kind of locking safety lock, comprises nut (1), light-duty elastic washer (3), pedestal (4), lock core (7).Core thread segment (701) end of lock core (7) is inserted in, through pedestal (4), is fixed, is stopped in pedestal (4) by the convex tendon (704) of lock core; The spring terminal (1001) of spring (9), button spindle (10) is inserted in the core bore of lock core (7) successively, and the bar key end (1005) of button spindle (10) is exposed to core bore; Pellet (8) one end in core bore and pedestal (4) contacted inner surfaces, crossing (1002) or the deep trouth section (1003) of the other end and button spindle (10) offset; The two ends of pellet (8) are curved respectively, and pellet (8) is provided with deep-slotted chip breaker with pedestal (4) internal diameter at pedestal (4) place of offseting.This locking safety lock is under violent vibration, and lock core (7) can not rotate, unclamp.
Description
Technical field
The present invention relates to locomotive door lock, is a kind of locking safety lock.
Background technology
Existing locomotive door lock is mainly used in the metal panels such as train, generally triangular keyhole is provided with in the pedestal of these locksets, lock core is connected with dead bolt, by triangle key rotation lock core, door-plate is opened and closed, it has the advantages that structure is simple, easy to install, cost of production is low, is widely used in various kinds of vehicles.Other locomotive door locks are installed on door-plate or doorframe, be connected with door-plate (or doorframe) by the screw thread of lock core, rotational lock core makes door-plate depart from doorframe or be connected, its screw thread by lock core and door-plate connected mode reach locking, vibrationproof, safe, stable effect, also there is the feature that structure is simple, easy to install, cost of production is low, be also widely used in various kinds of vehicles.But the lock core in above-mentioned two kinds of locomotive door lock structures is locking, vibrationproof, safety, less stable, easily lock core is caused to rotate due to lock core vibration, lock core or dead bolt is made to depart from door-plate, during especially for the vibrating type plant equipment that the vibration such as motor-car, bullet train is larger.
Summary of the invention
For overcoming above-mentioned deficiency, the object of the invention is to provide a kind of locking safety lock to this area, making it solve the technical problem of the safety in the vibrating type plant equipment such as locomotive of existing like product, less stable.Its objective is and to be achieved through the following technical solutions.
A kind of locking safety lock, this safety lock comprises nut, light-duty elastic washer, pedestal, lock core, and pedestal is provided with a thread segment and keyhole, is provided with lock core in the keyhole of pedestal, and the seat thread segment of pedestal is provided with nut and light-duty elastic washer.Pedestal is installed on locomotive door-plate by nut, light-duty elastic washer by this safety lock, and lock core is connected with dead bolt, and key inserts the keyhole of pedestal, rotational lock core, drives dead bolt to rotate, opens and closes locomotive door-plate; Or pedestal is installed on locomotive door-plate or doorframe, the screw thread of lock core aligns with the connecting hole of door-plate (or doorframe), and key inserts the keyhole of pedestal, rotational lock core, and lock core opens and closes locomotive door-plate.
Its technical essential is that the external diameter of described lock core is provided with convex tendon, the lock core external diameter of convex tendon side is provided with core thread segment, the lock core of opposite side is provided with core key end, core key end is provided with core bore, shell hole is provided with between core thread segment and convex tendon, shell hole communicates with core bore, is provided with pellet in shell hole, is provided with spring, button spindle in core bore; The spring terminal of described button spindle one end is inserted in spring, and the other end is bar key end, and the button spindle external diameter between spring terminal to bar key end is provided with crossing, deep trouth section, seal groove successively, is provided with rod seal circle in seal groove; Rod seal circle prevents dust from entering the core bore of lock core, affects the use of button spindle in core bore, pellet.The core thread segment end of described lock core is inserted in, through pedestal, fixed, be stopped in pedestal by the convex tendon of lock core; The spring terminal of spring, button spindle is inserted in the core bore of lock core successively, and the bar key end of button spindle is exposed to core bore; Pellet one end in core bore and pedestal internal diameter offset, and crossing or the deep trouth end of the other end and button spindle offset; The two ends of pellet are curved respectively, and the pedestal internal diameter at pellet and the pedestal place of offseting is provided with deep-slotted chip breaker.
Dead bolt is fixedly installed on the core thread segment of lock core, and key inserts the keyhole of pedestal, the core key end external diameter fit of key and lock core; Pressing key, spring stress generation deformation, button spindle moves inward, and the crossing of pellet and button spindle fastens the deep trouth section being changed to pellet and button spindle and fastens, and pellet departs from the deep-slotted chip breaker of pedestal internal diameter; Rotate key, key band movable lock core rotates, and lock core drives dead bolt to rotate; Extract key, spring drives button spindle to reset, and pellet comes back to the crossing of button spindle, and pellet reinserts the deep-slotted chip breaker of pedestal internal diameter, produces damping force between pellet and pedestal, even if utilize other tool into rotation lock core, lock core also can not rotate.Or omission dead bolt, the core thread segment of lock core is connected with door-plate (or doorframe), and insert key according to above-mentioned principle, rotational lock core, the core thread segment of lock core and door-plate (or doorframe) depart from, and door-plate is opened; The core thread segment of lock core is connected with door-plate (or doorframe), and door-plate cuts out.
The crossing of above-mentioned button spindle and deep trouth section, spring, the two ends arc of pellet, the deep-slotted chip breaker of pedestal internal diameter, and crossing and the design of deep trouth section of passing through pellet engages button bar, be the locking safety device of this safety lock.Make this safety lock under violent vibration by this locking safety device, lock core also can not rotate, loosen, only when with key pressing button spindle, just can rotational lock core; This locking safety device prevents the vibrating type plant equipment such as locomotive in the process run up, and loosens suddenly and the potential safety hazard that causes.Namely this safety lock is when nature, and under the action of the spring, button spindle is in lifting status, namely the bar key end of button spindle is exposed to the core bore state of lock core, and the crossing of button spindle aligns with pellet, and pellet cannot be retracted, pellet is stuck in the deep-slotted chip breaker of pedestal, and lock core can not be rotated.When button spindle is pressed, the deep trouth section of button spindle is alignd with pellet, and pellet can be free to slide; During with key rotary locking cylinder, pellet slides along the deep-slotted chip breaker of pedestal, rotates freely lock core.
Described nut is provided with screw hole, is provided with interior hexagonal cone end holding screw in screw hole, and the interior hexagonal cone end cone end of holding screw engages with the seat thread segment of pedestal.The seat thread segment of pedestal is by after nut locking, and hexagonal cone end holding screw in being rotated by die nut, is made interior hexagonal bore the end cone end of holding screw and engage with the seat thread segment of pedestal and lock.Owing to seldom dismantling after nut installation, which, on nut basis, in conjunction with interior hexagonal cone end holding screw, improves the stability of this safety lock, prevents loosening of nut, reach the object that pedestal is locking.
The deep-slotted chip breaker of described pedestal is quincunx, when the quincunx design of deep-slotted chip breaker facilitates the core thread segment and door-plate (or doorframe) connected mode that adopt lock core, presses button spindle, rotated by key band movable lock core by key.
The core thread segment of described lock core adopts trapezoidal thread, and trapezoidal thread lift angle is less than angle of friction.The Design of Screw Thread of this core thread segment makes the core thread segment of lock core have self-locking performance, when preventing core thread segment and door-plate (or doorframe) connected mode adopting lock core further, because vibration causes loosening between lock core and door-plate.
The core key end of described lock core is polygon, namely the core key end as lock core is designed to triangle, the key of triangular groove end inserts pedestal, the triangular groove of key and the triangular core key end external diameter fit of lock core, namely by rotational lock core after pressing key.
Described lock core is at least provided with symmetrical shell hole more than two, and in shell hole, correspondence is provided with pellet respectively, and lock core symmetrical shell hole design more than two, improves the stability of lock core.
On described lock core, convex tendon side lock core is provided with shell hole, and the junction of convex tendon and pedestal is provided with pellet back-up ring.Above-mentioned design makes also to produce damping force between pellet back-up ring and pellet, improves the limit function of pellet on button spindle during crossing; Meanwhile, the lock core that pellet back-up ring facilitates with pellet is fitted into pedestal, improves the stability of pellet in shell hole.
Described lock core and pedestal junction are provided with a sealing ring, and seat sealing ring prevents dust from entering door-plate inside by the gap between pedestal and lock core.The keyhole internal diameter aperture of pedestal is provided with elastic spring, and elastic spring prevents lock core from taking out from pedestal.
Little spring is provided with between described pellet and the internal diameter of pedestal.When key pressing button spindle, little spring further facilitates the deep trouth section that pellet inserts button spindle; When button spindle resets, pellet is supported back original position by the crossing of button spindle, the stressed generation deformation of little spring.
The core thread segment external diameter of described lock core is provided with clamp ring, makes lock core be fixed on pedestal, and ensure the rotation of lock core by clamp ring.
The present invention is reasonable in design, and structure is simple, installs, easy to use, applied range, and safety, good stability, be applicable to the various kinds of vehicles such as motor-car, bullet train, and the similar metal door such as vibrating type plant equipment.
Accompanying drawing explanation
Fig. 1 is detonation configuration schematic diagram of the present invention.
Fig. 2 is perspective view of the present invention.
Fig. 3 is pedestal plug face structural representation of the present invention, has made A-A Section line in figure.
Fig. 4 is the A-A sectional structure schematic diagram of Fig. 3, has made B-B Section line in figure, and A, B place has done to confine, and lock core is closed condition.
Fig. 5 is the A portion structure for amplifying schematic diagram of Fig. 3.
Fig. 6 is the B portion structure for amplifying schematic diagram of Fig. 3.
Fig. 7 is the B-B sectional structure schematic diagram of Fig. 4, and in figure, C place has done to confine.
Fig. 8 is the C portion structure for amplifying schematic diagram of Fig. 7.
Fig. 9 is the lock core opening structural representation of Fig. 8.
Figure 10 is the lock core opening structural representation of Fig. 3.
Figure number and title: 1, nut, 2, interior hexagonal cone end holding screw, 3, light-duty elastic washer, 4, pedestal, 401, seat thread segment, 402, keyhole, 5, seat sealing ring, 6, pellet back-up ring, 7, lock core, 701, core thread segment, 702, core key end, 703, shell hole, 704, convex tendon, 8, pellet, 9, spring, 10, button spindle, 1001, spring terminal, 1002, crossing, 1003, deep trouth section, 1004, seal groove, 1005, bar key end, 11, rod seal circle, 12, elastic spring, 13, key.
Detailed description of the invention
Now by reference to the accompanying drawings, assembling of the present invention and use are further described.As shown in Figure 1, Figure 2, Figure 4 shows, light-duty elastic washer 3, nut 1 are inserted in pedestal from the seat thread segment 401 of pedestal 4 one end successively, and the nut being provided with interior hexagonal cone end holding screw 2 screws in the seat thread segment of pedestal.The seat thread segment aperture of pedestal internal diameter arranges a sealing ring 5, the convex tendon 704 side core thread segment 701 side lock core of lock core 7 is arranged with shell hole 703 respectively, in shell hole, pellet 8 is set respectively, pellet back-up ring 6 is inserted in lock core from core thread segment, the convex tendon of pellet back-up ring and lock core fastens, and pellet is fixed on lock core.Rod seal circle 11 is inserted in the seal groove 1004 of button spindle 10 external diameter, the spring terminal 1001 of spring 9, button spindle inserts the core bore of core key end 702 on lock core successively, with the lock core of spring, button spindle, be inserted in, through pedestal from the core thread segment of lock core, the core thread segment of lock core exposes pedestal, lock core, and is fixed by the convex tendon of lock core, be stopped in pedestal.Because core bore communicates with shell hole, after lock core loads pedestal, button spindle on pressing lock core, when hearing a sound of " touching ", the arcwall face of pellet one end inserts the deep-slotted chip breaker of pedestal internal diameter, the arcwall face of the other end inserts crossing 1002 or the deep trouth section 1003 of button spindle, and the bar key end 1005 of button spindle is exposed to the core bore of lock core, and this lock core can be fixed in pedestal.Finally, as shown in Figure 6, arrange elastic spring 12 in keyhole 402 aperture of pedestal, this safety lock gets final product installation.
Be connected with the door-plate (or doorframe) of locomotive by the core thread segment of lock core for this safety lock.During installation, take off the light-duty elastic washer on pedestal and nut, pedestal is inserted the installing hole of door-plate (or doorframe), the seat thread segment of pedestal is inserted in light-duty elastic washer, and screws in nut.After pedestal is fixed on door-plate (or doorframe) by light-duty elastic washer, nut, by hexagonal cone end holding screw in die nut tightening nut, the interior hexagonal cone end cone end of holding screw and the seat thread segment of pedestal lock.Now, the core thread segment of lock core aligns, as shown in Fig. 4, Fig. 5, Fig. 7, Fig. 8 with the connecting hole of door-plate (or doorframe), the arc tips of pellet one end inserts the deep-slotted chip breaker of pedestal internal diameter, the arcwall face of the other end inserts the crossing of button spindle, even if locomotive high vibration, lock core also cannot rotate.Key 13 inserts pedestal, and the groove of key is inserted in the core key end external diameter of lock core, continues pressing key, as shown in Figure 9, Figure 10, the bar key end that button spindle exposes core bore inserts core bore, spring generation deformation, and pellet is by the deep trouth section of the crossing then insertion button spindle that insert button spindle.Now, by key rotation lock core, pellet slides at the quincunx deep-slotted chip breaker of pedestal internal diameter, and the connecting hole of the core thread segment of lock core and door-plate (or doorframe) departs from, and door-plate is opened; The core thread segment of lock core is connected with the connecting hole of door-plate (or doorframe), and door-plate cuts out.Extract key, as shown in Fig. 4, Fig. 5, Fig. 7, Fig. 8, spring drives button spindle to reset, and pellet reinserts the crossing of button spindle, and the state that opens or closes of door-plate remains unchanged.
According to structure and the operation instruction of this safety lock above-mentioned, in conjunction with the architectural feature of existing machinery lock, little spring is set between pellet and pedestal, or makes the core thread segment of lock core be fixed on pedestal by clamp ring, also belong to protection scope of the present invention.Meanwhile, according to the description of the invention described above, the apparent ground structure of those skilled in the art is made to the present invention and improves, also will fall into protection scope of the present invention.
Claims (3)
1. a locking safety lock, this safety lock comprises nut (1), light-duty elastic washer (3), pedestal (4), lock core (7), pedestal is provided with a thread segment (401) and keyhole (402), be provided with lock core in the keyhole of pedestal, the seat thread segment of pedestal is provided with nut and light-duty elastic washer; It is characterized in that:
The external diameter of described lock core (7) is provided with convex tendon (704), the lock core external diameter of convex tendon side is provided with core thread segment (701), the lock core of opposite side is provided with core key end (702), core key end is provided with core bore, shell hole (703) is provided with between core thread segment and convex tendon, shell hole communicates with core bore, is provided with pellet (8) in shell hole, is provided with spring (9), button spindle (10) in core bore;
The spring terminal (1001) of described button spindle one end is inserted in spring, the other end is bar key end (1005), button spindle external diameter between spring terminal to bar key end is provided with crossing (1002), deep trouth section (1003), seal groove (1004) successively, is provided with rod seal circle (11) in seal groove;
The core thread segment end of described lock core is inserted in, through pedestal (4), fixed, be stopped in pedestal by the convex tendon of lock core; The spring terminal of spring, button spindle is inserted in the core bore of lock core successively, and the bar key end of button spindle is exposed to core bore; Pellet one end in core bore and pedestal internal diameter offset, and crossing or the deep trouth end of the other end and button spindle offset; The two ends of pellet are curved respectively, and the pedestal internal diameter at pellet and the pedestal place of offseting is provided with deep-slotted chip breaker;
Described nut (1) is provided with screw hole, is provided with interior hexagonal cone end holding screw (2) in screw hole, and the interior hexagonal cone end cone end of holding screw engages with the seat thread segment (401) of pedestal (4);
The deep-slotted chip breaker of described pedestal (4) is quincunx;
The core thread segment (701) of described lock core (7) adopts trapezoidal thread, and trapezoidal thread lift angle is less than angle of friction;
The core key end (702) of described lock core (7) is in polygon;
Described lock core (7) is at least provided with symmetrically arranged shell hole (703) more than two, and in shell hole, correspondence is provided with pellet (8) respectively;
Upper convex tendon (704) the side lock core of described lock core (7) is provided with shell hole (703), and the junction of convex tendon and pedestal (4) is provided with pellet back-up ring (6);
Described lock core (7) and pedestal (4) junction are provided with a sealing ring (5), and keyhole (402) the internal diameter aperture of pedestal is provided with elastic spring (12).
2. locking safety lock according to claim 1, is provided with little spring between the internal diameter that it is characterized in that described pellet (8) and pedestal (4).
3. locking safety lock according to claim 1, is characterized in that core thread segment (701) external diameter of described lock core (7) is provided with clamp ring.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/000271 WO2012113094A1 (en) | 2011-02-22 | 2011-02-22 | Loosening prevention safe lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103314169A CN103314169A (en) | 2013-09-18 |
| CN103314169B true CN103314169B (en) | 2015-08-19 |
Family
ID=46720062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180002561.XA Active CN103314169B (en) | 2011-02-22 | 2011-02-22 | Locking safety lock |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103314169B (en) |
| WO (1) | WO2012113094A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2538696A (en) * | 2015-02-13 | 2016-11-30 | Rsbp Ltd | Panel lock |
| CN108266071B (en) * | 2017-12-12 | 2019-10-11 | 宁波生久柜锁有限公司 | Skirtboard screw fastening |
| CN110145170A (en) * | 2019-07-02 | 2019-08-20 | 林旭文 | Lockset with door handle clutch structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2738649B2 (en) * | 1994-03-18 | 1998-04-08 | 株式会社サンポウロック | Handle lock |
| CN2437801Y (en) * | 2000-08-17 | 2001-07-04 | 戴立强 | Anti-theft lock |
| DE20102793U1 (en) * | 2001-02-14 | 2001-07-19 | Jul. Niederdrenk GmbH & Co.KG, 42553 Velbert | Cylinder lever lock |
| CN2755233Y (en) * | 2004-12-07 | 2006-02-01 | 林雨彤 | Cylinder lock with identification device |
| CN201262000Y (en) * | 2008-09-27 | 2009-06-24 | 姚春良 | Rotating tightening type electric cabinet lock |
| CN101942933A (en) * | 2010-08-20 | 2011-01-12 | 青岛澳柯玛股份有限公司 | Safety lock |
-
2011
- 2011-02-22 CN CN201180002561.XA patent/CN103314169B/en active Active
- 2011-02-22 WO PCT/CN2011/000271 patent/WO2012113094A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2738649B2 (en) * | 1994-03-18 | 1998-04-08 | 株式会社サンポウロック | Handle lock |
| CN2437801Y (en) * | 2000-08-17 | 2001-07-04 | 戴立强 | Anti-theft lock |
| DE20102793U1 (en) * | 2001-02-14 | 2001-07-19 | Jul. Niederdrenk GmbH & Co.KG, 42553 Velbert | Cylinder lever lock |
| CN2755233Y (en) * | 2004-12-07 | 2006-02-01 | 林雨彤 | Cylinder lock with identification device |
| CN201262000Y (en) * | 2008-09-27 | 2009-06-24 | 姚春良 | Rotating tightening type electric cabinet lock |
| CN101942933A (en) * | 2010-08-20 | 2011-01-12 | 青岛澳柯玛股份有限公司 | Safety lock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103314169A (en) | 2013-09-18 |
| WO2012113094A1 (en) | 2012-08-30 |
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Owner name: NINGBO SHENGJIU DRAWER LOCK CO., LTD. Free format text: FORMER OWNER: YAO CHUNLIANG Effective date: 20150703 |
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Effective date of registration: 20150703 Address after: 315423, Zhejiang City, Ningbo province Yuyao City, great saphenous town Ba Bridge Village Applicant after: Ningbo Shengjiu Cabinets Lock Co., Ltd. Address before: 315423, Ningbo, Zhejiang province Yuyao City, great saphenous town bachelor Bridge Village Ningbo long cabinet lock Co., Ltd. Applicant before: Yao Chunliang |
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Effective date of registration: 20180605 Address after: 266000 unit 1, unit 3, building 280, Tai Liu Road, Shibei District, Qingdao, Shandong, 1 Units Patentee after: Qingdao Sheng long railway track equipment Co., Ltd. Address before: 315423 Ningbo County, Zhejiang province Yuyao City Patentee before: Ningbo Shengjiu Cabinets Lock Co., Ltd. |
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Effective date of registration: 20210409 Address after: 315423 No.1, Shengjiu Road, industrial park, Dayin Town, Yuyao City, Ningbo City, Zhejiang Province Patentee after: Ningbo Shengjiu Cabinet Lock Co.,Ltd. Address before: 266000 unit 1, unit 3, building 280, Tai Liu Road, Shibei District, Qingdao, Shandong, 1 Units Patentee before: QINGDAO SHENGJIU RAILWAY TRACK EQUIPMENT Co.,Ltd. |
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Address after: 315423 No.1, Shengjiu Ring Road, industrial park, Dayin Town, Yuyao City, Ningbo City, Zhejiang Province Patentee after: Ningbo Shengjiu Technology Co.,Ltd. Address before: 315423 No.1, Shengjiu Road, industrial park, Dayin Town, Yuyao City, Ningbo City, Zhejiang Province Patentee before: Ningbo Shengjiu Cabinet Lock Co.,Ltd. |