CN209293595U - Electronics padlock - Google Patents
Electronics padlock Download PDFInfo
- Publication number
- CN209293595U CN209293595U CN201821228544.3U CN201821228544U CN209293595U CN 209293595 U CN209293595 U CN 209293595U CN 201821228544 U CN201821228544 U CN 201821228544U CN 209293595 U CN209293595 U CN 209293595U
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- CN
- China
- Prior art keywords
- connecting rod
- lock
- cassette holder
- padlock
- microswitch
- 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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Abstract
It the utility model relates to a kind of electronics padlock, is designed for the technical issues of internal structure design and assembly structure design be not good enough, and especially linkage component and linkage part are further improved in existing similar product is solved.Its main points is the connecting rod of the padlock and lock offsets, and the connecting rod at place is equipped with lockhole, and the lockhole of the locked groove inner end insertion connecting rod of lock draws one end of ear and tension spring to connect among connecting rod, the retention bead of lock offsets with the touch piece for latching microswitch；Motor is engaged by worm screw with the gear of cassette holder internal tooth wheel assembly, wherein another gear bottom cam of gear assembly is offseted by side salient point and the touch piece of connecting rod microswitch, the slide opening of the eccentric shaft insertion slide plate of cam bottom, the corner baffle of slide plate one end and the other end of connecting rod offset, and the distal portion of connecting rod is on the inside of the corner baffle of slide plate.I.e. connecting rod microswitch is triggered by cam, and lock microswitch passes through connecting bar locking by lock triggering, lock.
Description
Technical field
The utility model relates to padlocks, are a kind of electronics padlocks.
Background technique
A kind of lockset for making lock tongue rotation lock by hitting of padlock is widely used in telecommunications, electric power, automation control
The metal cabinet door of the industries such as system manufacture；It is equipped with lock and reduction torsion spring generally at the latch openings of shell side, that is, passes through shell
The opening of body makes the locking bolt of lock and doorframe fasten or be detached from.Wherein, some padlocks are equipped with lock pin and electromagnetic driver, such as China
The application number 201720420997.5 disclosed in patent document, authorized announcement date 2017.12.12, utility model title " motor button
Lock "；Lock microswitch, variable speed electric motors, particularly, fixing buckle, fixture block and circuit board are equipped in the shell of the padlock；Its main points is described
The motor shaft of variable speed electric motors, particularly is connect with turntable, and turntable is connected by one end of locating piece, connecting rod and fixture block, the other end of fixture block with
One end of fixing buckle fastens, and the lock shaft of fixing buckle is set to the other end of fixing buckle, and fixing buckle is equipped with the U-shaped of long short side
Mouth is detained, shell is equipped with opening at the button mouth of fixing buckle；Fixing buckle is limited by fixture block, and passes through lock shaft rotation, fixing buckle
Button mouth and shell register when open, when reset, closes；The intracorporal circuit board of shell replaces with PCB control panel, should
Padlock can be intelligent padlock, need communication signal to realize interactive correspondence, sending order unlocks and the judgement of door state.But it is above-mentioned
The component assembling of padlock is more inconvenient, and the linkage structure design of connecting rod is not good enough, and stability is not good enough, and structure needs further to be changed
Into.
Summary of the invention
To overcome above-mentioned deficiency, the purpose of this utility model is that a kind of electronics padlock is provided to this field, solves it existing
There are internal structure design and assembly structure design in similar product not good enough, especially linkage component and linkage part need further
The technical issues of improvement.The purpose is to what is be achieved through the following technical solutions.
A kind of electronics padlock, the cassette holder of the padlock and box cover, which fasten, constitutes shell, be equipped in cassette holder motor, connecting rod, lock,
Circuit board, the side of cassette holder are equipped with latch openings, lock are equipped in the cassette holder at latch openings, is set at the side location hole of lock
There is a lock torsion spring, the other side of lock is equipped with u-shaped locked groove, and the outboard end of locked groove is greater than inner end, in the locked groove of lock
Connecting rod is equipped with below side, one end of connecting rod and the locked groove inner end of lock offset, one end of lock torsion spring and the locked groove of lock
Inside outer diameter fastens, and the other end of lock torsion spring and the inner wall of cassette holder offset；Its structure designing points is the connecting rod and lock
Offset place connecting rod be equipped with lockhole, lock locked groove inner end insertion connecting rod lockhole, i.e., one end of connecting rod by lockhole and lock
The locked groove inner end of button offsets, and connecting rod is fixed on cassette holder by putting ear, draws one end of ear and tension spring to connect among connecting rod, tension spring
The other end be fixed on shell；The lock of lock torsion spring and lock junction is equipped with retention bead, the retention bead and lock of lock
The touch piece of button microswitch offsets；The motor shaft of motor is equipped with worm screw, and worm screw engages with the gear of cassette holder internal tooth wheel assembly,
Another gear bottom of middle gear component is equipped with cam, the touch piece phase of the side salient point and connecting rod microswitch of cam outer diameter
It supports, the bottom of cam is equipped with eccentric shaft, the slide opening of the eccentric shaft insertion slide plate of cam, the corner baffle of slide plate one end and connecting rod
The other end offsets, and for the distal portion of connecting rod on the inside of the corner baffle of slide plate, circuit board passes through route and connecting rod microswitch, lock
Detain microswitch, motor connection.The padlock realizes that the unlock of the padlock resets by motor driven connecting rod；Its specific works is former
Manage as follows: lock is fastened by hitting with fixed fixing buckle, that is, the button hole of the outboard end insertion fixing buckle latched, motor passes through
Gear gradually drives slide plate to move up, and slide plate drives one end of connecting rod to also move up, and connecting rod is rotated by the pendulum point of pendulum ear,
The other end of connecting rod and the locked groove inner end of lock are detached from, and lock can be made to be freely rotated by lock torsion spring.When the lock of lock
When slot outboard end and fixing buckle fasten, the lockhole of connecting rod and the locked groove inner end of lockhole are fastened, which can not open.It is above-mentioned to be
The circuit board of the padlock is connected by the controlling terminal of wired or wireless way cabinet door, and communication signal realizes interactive correspondence, and leads to
Lock microswitch and connecting rod microswitch are crossed, the work of signal control motor is issued.
The corner baffle of the connecting rod and slide plate, which offsets, locates another side body of cassette holder equipped with manual vent, and the part of connecting rod is revealed
The manual vent of cassette holder out, manual vent is u-shaped, and part slide plate exposes manual vent.Consequently facilitating the padlock passes through manually
Connecting rod mode unlock is pulled, i.e., pushes the connecting rod end to move up manually, the other end of connecting rod can be with the locked groove inside of lock
End is detached from.
The connecting rod is bent in zigzag, and one end that connecting rod is bent upwards is located at the setting of fixture block and lock, and connecting rod is upward
Curved end is equipped with downward nose, and the lockhole that connecting rod is bent upwards to knee bottom is equipped with pendulum ear, and connecting rod is reclinate
One end is located at the manual vent of shell, connecting rod draw ear be located at two bending both ends between junctions, and towards pendulum ear one
Side, the past complex space for being equipped between baffle and being swung up for connecting rod is handed on the side of cassette holder inner wall and slide plate at the manual vent of connecting rod.
The structure design and Position Design of above-mentioned the connecting rod further space setting in the reasonable padlock, further reduce the padlock
Volume.
Fixture block, the lockhole that the locked groove inner end of lock passes through connecting rod are equipped with below the locked groove inner end of the lock in cassette holder
It offseting with fixture block one end, one end of the other end and fixture block torsional spring of fixture block offsets, and fixture block torsional spring is contacted with conductive shaft simultaneously,
Conductive shaft is fixed between cassette holder and box cover, and the other end of fixture block torsional spring is mutually butted on the inner wall of cassette holder, and fixture block torsional spring is fixed on shell
Body, fixture block are fixed in the fixture block set of cassette holder.To make the locking between lock and connecting rod further stablize, and connecting rod is made to exist
Pass through fixture block directional swing when swing.
It offsets at the discount of the lock and the build of fixture block, forms status signal switch, i.e. circuit board, conductive shaft, card
Signal circuit route is connected to form by electric wire between block torsional spring, fixture block, and is referred to by the work that circuit board connects controlling terminal
Show that lamp, the cassette holder at motor rear portion are equipped with string holes sheath.When moving down to fixture block, fixture block drives fixture block torsional spring to move down,
Fixture block torsional spring and conductive shaft disconnect, and signal circuit route disconnects, and the corresponding work light of controlling terminal lights.
The circuit board is equipped with battery, microswitch signal transceiver and status signal transceiver, circuit board and passes through fine motion
Switching signal transceiver and status signal transceiver wireless connection control terminal.To which the padlock is monitored in real time by controlling terminal
Unlocking condition, and control are unlocked and are shut.
Interior shell block is equipped in the cassette holder, worm screw, motor, gear assembly, connecting rod microswitch are set to interior shell block, latch
Microswitch is set to the circuit board at interior shell block bottom end angle, and slide plate is set to the interior shell block end angle bottom of circuit board diagonally opposing corner,
Slide plate is triangular in shape, and the slide opening two sides of slide plate are symmetrically arranged with the cunning muscle of protrusion, and box cover is equipped with limit column sleeve, limit at the bevel edge of slide plate
Muscle column corresponding cassette holder in position is equipped with limit rib column, and limit rib column is located at the limiting groove at interior shell block edge, and interior shell block is equipped with three
The mounting hole of triangular pitch.Assembly that above structure is further convenient for the padlock inner part and interior shell block are in cassette holder
Installation.
Strut is equipped in the cassette holder, one end of strut is offseted by the spring in cassette holder stretches out cassette holder side, strut
Elongation end is located above the latch openings of cassette holder.Above-mentioned strut is for the further locking and opening between the padlock and doorframe.
The gear assembly is tertiary gear group, and the first gear wheel is engaged with worm screw, the first pinion gear of the first gear wheel
It is engaged with the second gear wheel, the second pinion gear of the second gear wheel is engaged with third gear wheel, and the bottom axis of third gear wheel is flat
The center flat key hole fitting of key and cam.Above structure further reduces the power and volume of motor, meets making for the padlock
With requiring to further decrease with volume.
The structure design of the utility model is reasonable, small volume, using, it is easy to assembly, safety, stability are good, convenient for remote
Range monitoring has manually and automatically two kinds of forms；It is suitable as control equipment screen and controls the door lock use of bin, Yi Jitong
The structure of class product is improved.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure one of the utility model, omits box cover in figure.
Fig. 2 is the schematic diagram of internal structure two of the utility model, omits cassette holder, strut and fixing buckle in figure.
Fig. 3 is the schematic diagram of internal structure two of Fig. 2.
Fig. 4 is the schematic diagram of internal structure three of the utility model, omits cassette holder in figure.
Fig. 5 is the structural schematic diagram one of the utility model.
Fig. 6 is the structural schematic diagram two of the utility model.
Figure number and title: 1, strut, 2, spring, 3, lock microswitch, 4, worm screw, 5, motor, 6, gear assembly,
7, connecting rod microswitch, 8, connecting rod, 801, pendulum ear, 802, drawing ear, 9, tension spring, 10, fixture block, 1001, build, 11, fixture block torsional spring,
12, conductive shaft, 13, fixing buckle, 14, lock, 1401, discount, 15, lock torsion spring, 16, cassette holder, 17, interior shell block, 18, circuit
Plate, 19, cam, 20, slide plate, 21, box cover, 22, string holes sheath.
Specific embodiment
Now in conjunction with attached drawing, the utility model structure and use are further described.As shown in figs 1 to 6, the padlock
Cassette holder 16 and box cover 21, which fasten, constitutes shell, motor 5, connecting rod 8, lock 14, circuit board 18 is equipped in cassette holder, the side of cassette holder is set
There are latch openings, lock is equipped in the cassette holder at latch openings, is equipped with lock torsion spring 15 at the side location hole of lock, lock
The other side is equipped with u-shaped locked groove, and the outboard end of locked groove is greater than inner end, is equipped with connecting rod below the locked groove inner end of lock,
One end of connecting rod and the locked groove inner end of lock offset, and outer diameter fastens on the inside of one end of lock torsion spring and the locked groove of lock, lock
The other end of torsional spring and the inner wall of cassette holder offset.Its specific structure is as follows: connecting rod and the connecting rod for latching the place that offsets are equipped with lockhole, lock
The lockhole of the locked groove inner end insertion connecting rod of button, i.e. one end of connecting rod are offseted by the locked groove inner end of lockhole and lock, connecting rod
It is fixed on cassette holder by putting ear 801, the drawing ear 802 among connecting rod is connect with one end of tension spring 9, and the other end of tension spring is fixed on shell
Body；The lock of lock torsion spring and lock junction is equipped with retention bead, the retention bead of lock and the touch of lock microswitch 3
Piece offsets；The motor shaft of motor is equipped with worm screw 4, and worm screw engages with the gear of cassette holder internal tooth wheel assembly 6, and wherein gear assembly is another
One gear bottom is equipped with cam 19, and the side salient point of cam outer diameter offsets with the touch piece of connecting rod microswitch 7, the bottom of cam
Equipped with eccentric shaft, the slide opening of the eccentric shaft insertion slide plate 20 of cam, the corner baffle of slide plate one end and the other end of connecting rod offset,
The distal portion of connecting rod on the inside of the corner baffle of slide plate, circuit board by route and connecting rod microswitch, lock microswitch,
Motor connection.Strut 1 is equipped in cassette holder, one end of strut is offseted by the spring 2 in cassette holder stretches out cassette holder side, and strut is stretched
Long end is located above the latch openings of cassette holder.
Wherein, the corner baffle of connecting rod and slide plate, which offsets, locates another side body of cassette holder equipped with manual vent, the part of connecting rod
Expose the manual vent of cassette holder, manual vent is u-shaped, and part slide plate exposes manual vent.Connecting rod is bent in zigzag, connecting rod
The one end being bent upwards is located at the setting of fixture block and lock, and the end that connecting rod is bent upwards is equipped with downward nose, and connecting rod is upward
Curved lockhole to knee bottom is equipped with pendulum ear, and the reclinate one end of connecting rod is located at the manual vent of shell, connecting rod
Ear is drawn to be located at the junctions between two bending both ends, and towards pendulum ear side, cassette holder inner wall and cunning at the manual vent of connecting rod
It hands over and is equipped with the past complex space that connecting rod is swung up between baffle in the side of plate.Fixture block is equipped with below the locked groove inner end of lock in cassette holder
10, the locked groove inner end of lock is offseted by the lockhole of connecting rod with fixture block one end, and fixture block torsional spring connects with conductive shaft 12 simultaneously
Touching, conductive shaft is fixed between cassette holder and box cover, and one end of the other end and fixture block torsional spring 11 of fixture block offsets, fixture block torsional spring it is another
One end is mutually butted on the inner wall of cassette holder, and fixture block torsional spring is fixed on shell, and fixture block is fixed in the fixture block set of box cover.Meanwhile lock
It offsets at discount 1401 and the build 1001 of fixture block, forms status signal switch, i.e. circuit board, conductive shaft, fixture block torsional spring, fixture block
Between signal circuit route is connected to form by electric wire, and the work light of controlling terminal is connected by circuit board, after motor
The cassette holder in portion is equipped with string holes sheath 22.Interior shell block 17, worm screw, motor, gear assembly, the setting of connecting rod microswitch are equipped in cassette holder
In interior shell block, the circuit board that microswitch is set to interior shell block bottom end angle is latched, slide plate is set to the interior of circuit board diagonally opposing corner
Shell block end angle bottom, slide plate is triangular in shape, and the slide opening two sides of slide plate are symmetrically arranged with the cunning muscle of protrusion, and box cover is set at the bevel edge of slide plate
There is limit column sleeve, the corresponding cassette holder of limit rib column is equipped with limit rib column, and limit rib column is located at the limiting groove at interior shell block edge, interior
Shell block sets the mounting hole there are three triangular pitch.Gear assembly is tertiary gear group, and the first gear wheel is engaged with worm screw, first
First pinion gear of gear wheel is engaged with the second gear wheel, and the second pinion gear of the second gear wheel is engaged with third gear wheel, the
The bottom axis flat key of three gear wheels and the center flat key hole fitting of cam.The circuit board of the above-mentioned padlock passes through electric wire and cabinet door
Controlling terminal connection.
Lock is limited by connecting rod in above structure, and when slide plate drives link rotatable, connecting rod and lock are detached from, lock
Unscrew or closing.The specific working principle is as follows: in use, lock by lock torsion spring reset, the retention bead of lock and
Microswitch triggering is latched, starting lock microswitch passes through simultaneously to offset at the discount of lock and the clamp of fixture block, forms shape
State signaling switch；Then, circuit board starting motor work, motor are rotated by worm screw by gear assembly band moving cam, cam
Eccentric shaft drive slide plate while move up, slide plate drives one end of connecting rod to also move up, and the salient point of cam, which triggers, to be connected
Bar microswitch, when connecting rod swing, the other end and lock of connecting rod are detached from, and the lockhole of connecting rod enters in fixture block；At this point, lock with
When fixing buckle is detached from process, lock rotates, and the retention bead and lock microswitch of lock are detached from, and lock microswitch closes
It closes.When lock with fixing buckle completely disengage when, lock automatically reset by lock torsion spring, the retention bead of lock again with lock
Microswitch triggering, is again started up lock microswitch.When lock is completely disengaged with fixing buckle, connecting rod passes through motor, gear
Component and slide plate are reset to original state, and the locked groove inner end of lock and the buckle end of connecting rod offset, and lock passes through lock torsion spring certainly
Dynamic to reset, the retention bead of lock can not latch microswitch and be in off state again with lock microswitch triggering.
Claims (9)
1. a kind of electronics padlock, the cassette holder (16) of the padlock and box cover (21) fasten and constitute shell, be equipped in cassette holder motor (5),
Connecting rod (8), lock (14), circuit board (18), the side of cassette holder are equipped with latch openings, are equipped with lock in the cassette holder at latch openings
Button is equipped with lock torsion spring (15) at the side location hole of lock, and the other side of lock is equipped with u-shaped locked groove, locked groove it is outer
Side is greater than inner end, is equipped with connecting rod below the locked groove inner end of lock, and one end of connecting rod and the locked groove inner end of lock offset,
Outer diameter fastens on the inside of one end of lock torsion spring and the locked groove of lock, and the other end of lock torsion spring and the inner wall of cassette holder offset；It is special
Sign be the connecting rod (8) and latch (14) offset place connecting rod be equipped with lockhole, lock locked groove inner end insertion connecting rod lock
Hole, i.e. one end of connecting rod are offseted by the locked groove inner end of lockhole and lock, and connecting rod is fixed on cassette holder by putting ear (801), even
Drawing ear (802) among bar is connect with one end of tension spring (9), and the other end of tension spring is fixed on shell；Lock torsion spring (15) and lock
The lock for detaining junction is equipped with retention bead, and the retention bead of lock and the touch piece of lock microswitch (3) offset；Motor
(5) motor shaft is equipped with worm screw (4), and worm screw engages with the gear of cassette holder (16) internal tooth wheel assembly (6), and wherein gear assembly is another
One gear bottom is equipped with cam (19), and the side salient point and the touch piece of connecting rod microswitch (7) of cam outer diameter offset, cam
Bottom is equipped with eccentric shaft, the slide opening of eccentric shaft insertion slide plate (20) of cam, the corner baffle of slide plate one end and connecting rod it is another
End offsets, and for the distal portion of connecting rod on the inside of the corner baffle of slide plate, circuit board (18) passes through route and connecting rod microswitch, lock
Detain microswitch, motor connection.
2. electronics padlock as described in claim 1, it is characterised in that the connecting rod (8) and the corner baffle of slide plate (20) offset
Locate cassette holder (16) another side body and be equipped with manual vent, the manual vent of cassette holder is exposed in the part of connecting rod, and manual vent is in U-shaped
Shape, part slide plate expose manual vent.
3. electronics padlock as claimed in claim 2, it is characterised in that the connecting rod (8) is bent in zigzag, and connecting rod is bent upwards
One end be located at fixture block (10) and latch at the setting of (14), end that connecting rod is bent upwards is equipped with downward nose, and connecting rod is upward
Curved lockhole to knee bottom is equipped with pendulum ear (801), and the reclinate one end of connecting rod is located at the manual vent of shell, even
The drawing ear (802) of bar is located at the junctions between two bending both ends, and towards pendulum ear side, cassette holder at the manual vent of connecting rod
(16) the past complex space for being equipped between baffle and being swung up for connecting rod is handed on the side of inner wall and slide plate.
4. electronics padlock as described in claim 1, it is characterised in that cassette holder below the locked groove inner end of the lock (14)
(16) fixture block (10) are equipped in, the locked groove inner end of lock is offseted by the lockhole of connecting rod with fixture block one end, the other end of fixture block
It offsets with one end of fixture block torsional spring (11), and fixture block torsional spring is contacted with conductive shaft (12) simultaneously, conductive shaft is fixed on cassette holder
(16) between box cover (21), the other end of fixture block torsional spring is mutually butted on the inner wall of cassette holder (16), and fixture block torsional spring is fixed on shell, card
Block is fixed in the fixture block set of cassette holder (16).
5. electronics padlock as claimed in claim 4, it is characterised in that the discount (1401) of the lock (14) and fixture block (10)
Build (1001) at offset, form status signal switch, i.e. circuit board (18), conductive shaft (12), fixture block torsional spring (11), fixture block
Between signal circuit route is connected to form by electric wire, and pass through the work light that circuit board connects controlling terminal, motor (5)
The cassette holder (16) at rear portion is equipped with string holes sheath (22).
6. electronics padlock as claimed in claim 5, it is characterised in that the circuit board (18) is equipped with battery, microswitch signal
Transceiver and status signal transceiver, circuit board are wirelessly connected control by microswitch signal transceiver and status signal transceiver
Terminal processed.
7. electronics padlock as described in claim 1, it is characterised in that be equipped with interior shell block (17) in the cassette holder (16), worm screw
(4), motor (5), gear assembly (6), connecting rod microswitch (7) are set to interior shell block, and lock microswitch (3) is set to inner casing
The circuit board (18) at seat bottom end angle, slide plate (20) are set to the interior shell block end angle bottom of circuit board diagonally opposing corner, and slide plate is in triangle
Shape, the slide opening two sides of slide plate are symmetrically arranged with the cunning muscle of protrusion, and box cover (21) is equipped with limit column sleeve, limit rib column at the bevel edge of slide plate
Corresponding cassette holder is equipped with limit rib column, and limit rib column is located at the limiting groove at interior shell block edge, and interior shell block is equipped with three triangles
The mounting hole of arrangement.
8. electronics padlock as described in claim 1, it is characterised in that it is equipped with strut (1) in the cassette holder (16), the one of strut
End is offseted by the spring (2) in cassette holder stretches out cassette holder side, and the elongation end of strut is located above the latch openings of cassette holder.
9. electronics padlock as described in claim 1, it is characterised in that the gear assembly (6) is tertiary gear group, and first is big
Gear is engaged with worm screw (4), and the first pinion gear of the first gear wheel is engaged with the second gear wheel, the small tooth of the second of the second gear wheel
Wheel is engaged with third gear wheel, the bottom axis flat key of third gear wheel and the center flat key hole fitting of cam (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821228544.3U CN209293595U (en) | 2018-08-01 | 2018-08-01 | Electronics padlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821228544.3U CN209293595U (en) | 2018-08-01 | 2018-08-01 | Electronics padlock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209293595U true CN209293595U (en) | 2019-08-23 |
Family
ID=67650649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821228544.3U Active CN209293595U (en) | 2018-08-01 | 2018-08-01 | Electronics padlock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209293595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113443A (en) * | 2018-08-01 | 2019-01-01 | 宁波生久柜锁有限公司 | Electric motor type electronics padlock |
-
2018
- 2018-08-01 CN CN201821228544.3U patent/CN209293595U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113443A (en) * | 2018-08-01 | 2019-01-01 | 宁波生久柜锁有限公司 | Electric motor type electronics padlock |
| CN109113443B (en) * | 2018-08-01 | 2023-09-22 | 宁波生久科技有限公司 | Motor type electronic lock |
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