CN110439372A - A kind of intelligent padlock by memory wire driving unlock - Google Patents
A kind of intelligent padlock by memory wire driving unlock Download PDFInfo
- Publication number
- CN110439372A CN110439372A CN201910690674.1A CN201910690674A CN110439372A CN 110439372 A CN110439372 A CN 110439372A CN 201910690674 A CN201910690674 A CN 201910690674A CN 110439372 A CN110439372 A CN 110439372A
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- Prior art keywords
- metal wire
- memory metal
- shape memory
- unlock
- lock
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- 239000002184 metal Substances 0.000 claims abstract description 60
- 229910052751 metal Inorganic materials 0.000 claims abstract description 60
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000004904 shortening Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 238000012795 verification Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0009—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with thermo-electric actuators, e.g. heated bimetals
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B67/00—Padlocks; Details thereof
- E05B67/06—Shackles; Arrangement of the shackle
- E05B67/22—Padlocks with sliding shackles, with or without rotary or pivotal movement
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B67/00—Padlocks; Details thereof
- E05B67/38—Auxiliary or protective devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0057—Feeding
- E05B2047/0058—Feeding by batteries
Landscapes
- Lock And Its Accessories (AREA)
Abstract
The present invention relates to lock technology field, especially a kind of intelligent padlock by memory wire driving unlock.The intelligence padlock, including lock bridge, lock body, be contained in the lock body for the lock bridge cooperation locking sticking department, be used for and the sticking department cooperation Rotational Cylindrical, the Rotational Cylindrical can turn to unlocked position from latched position, the intelligence padlock further includes the driving mechanism for driving the Rotational Cylindrical rotation, the driving mechanism includes shape memory metal wire, one end of the shape memory metal wire is connect with the lock body, and the other end of the shape memory metal wire is connect with the Rotational Cylindrical；The shape memory metal wire pulls the Rotational Cylindrical rotation to realize unlock for being heated shortening.Intelligent pad lock structure by memory wire driving unlock of the invention is simple, and the electromagnet driving device of the prior art is replaced using shape memory metal wire, driving method is changed, reduces costs.
Description
Technical field
The present invention relates to lock technology field, especially a kind of intelligent padlock by memory wire driving unlock.
Background technique
Electronic lock currently on the market is mainly the following classification: keyswitch type electronic lock, dial-type electronic lock, electronics key
Key electronic lock, touch type electronic lock, biological characteristic formula electronic lock.Compared with traditional mechanical lock, above-mentioned several electronic locks
Feature is: work safety, reliably, confidentiality are extremely strong.But current electronic lock all has electromagnet, does not only result in that structure is complicated,
Production cost is also increased, and the task driven of electromagnet is also required to the biggish power supply of power.
Shape memory metal wire can be elongated up to 8% in low temperature, go back resilient after the heating, but in relatively smaller number
Round-trip (such as 100 times) will failure after the period.In order to there is our a round-trip reliabilities of acceptable high reps, when low temperature
The elongation of Memorability metal wire preferably must be held in the low percentage point of its overall length.In general, elongating 5-6%, the service life of line can
Up to tens of thousands of round-trip；3-4%, hundreds of thousands of times；2% hereinafter, millions of times.
Referring to Figure 1, the Chinese invention patent of notification number CN100547213 is disclosed with one or more snippets with memory metal
Line segment is the electromechanical lock using shape memory metal wire of " electricity --- machine " energy converter.Electronic control circuit injects a current into memory
Metal wire is allowed to heat and shrink.The position of the stop set by the action of shape memory metal wire allows or stops to influence to unlock
The movement of the locking bolt of locking, but the electromechanical lock of the structure is used to realize unlock, knot by shape memory metal wire pull lever
Structure is relative complex；Shape memory metal wire is architectural limitation its length, it is more difficult to reach its optimal use state.
Summary of the invention
Rotational Cylindrical rotation is driven to realize the intelligent padlock unlocked by memory wire it is an object of that present invention to provide a kind of,
Structure is simple, easy for installation and at low cost, long service life.
In order to achieve the above-mentioned advantages, the intelligent padlock provided by the invention by memory wire driving unlock includes lock bridge, lock
Body, be contained in the lock body for lock bridge cooperation locking sticking department, be used for and the Rotational Cylindrical of sticking department cooperation,
The Rotational Cylindrical can turn to unlocked position from latched position, and the intelligence padlock further includes for driving the Rotational Cylindrical to rotate
Driving mechanism, the driving mechanism includes shape memory metal wire, and one end of the shape memory metal wire is connect with the lock body, described
The other end of shape memory metal wire is connect with the Rotational Cylindrical；The shape memory metal wire pulls the Rotational Cylindrical for being heated shortening
Rotation is to realize unlock.
In one embodiment of the invention, the lock body, which is rotatably connected to, is used to support the shape memory metal wire and makes it be in
Multiple support wheels that reasonable track is shunk.
In one embodiment of the invention, the lock bridge offers locking notch, and the sticking department is that a pair is symmetrically set
The part respectively set can be contained in lock tongue or steel ball in the locking notch.
In one embodiment of the invention, the Rotational Cylindrical is equipped with the press section for squeezing the lock tongue and is used for solid
The fixed part of the fixed memory metal color, the press section is the plate body upwardly extended, and the fixed part extends downwardly
Column structure, the press section rotate its two sides and squeeze the symmetrical lock tongue respectively, make the symmetrical lock tongue relative motion
It is detached from the unlock that the locking notch realizes padlock.
Or, the Rotational Cylindrical be equipped with protrusion part for the steel ball to be limited in the locking notch and be used for for
The steel ball provides the barbed portion for being detached from the locking notch space, and the Rotational Cylindrical is partially toward the locking of the steel ball from the protrusion
Position turns to unlocked position of the barbed portion towards the steel ball, to allow the steel ball and the locking notch to be kept completely separate realization
The unlock of padlock.
In one embodiment of the invention, the Rotational Cylindrical side is equipped with limiting groove, and the lock body is fixed with part
The limited post being contained in the limiting groove, the limiting groove and limited post cooperation limit the rotation model of the shifting block
It encloses.
In one embodiment of the invention, the shape memory metal wire, which is connected with, drives its power supply device that deformation occurs.
In one embodiment of the invention, the power supply device includes the power supply module connecting with the shape memory metal wire
And the control module of the control power supply module energization period.
In one embodiment of the invention, the power supply module includes battery, the both ends difference of the shape memory metal wire
It is connect by electric wire with the positive and negative anodes of the battery, the battery, the shape memory metal wire, the electric wire form an electricity and return
Road；The electrical circuit is provided with the switch for making the electrical circuit be turned on or off, and the switch is electrically connected with the control module；
When the electrical circuit is connected, the shape memory metal wire is heated shortening；When the electrical circuit disconnects, the shape memory metal wire is cooling
Restore length.
In one embodiment of the invention, the control module includes information collection portion and verification information portion, described to test
Card information portion is verified, controls for will be compared from the unlocking information in the information collection portion with set information
Electrical circuit described in the switch conduction is for a period of time.
In one embodiment of the invention, the information collection portion be Bluetooth antenna, code keyboard, fingerprint sensor,
One or more of data-interface.
Intelligent pad lock structure by memory wire driving unlock of the invention is simple, is replaced using shape memory metal wire existing
There is the electromagnet driving device of technology, change driving method, reduce costs, it is only necessary to which the driving power of very little makes
The service life of battery extends；The length that shape memory metal wire is arranged by support wheel support is longer to be easier to make shape memory metal wire
It elongates and is maintained at 2% or less its overall length and is shunk along reasonable track, to make the long service life of intelligent padlock.
Detailed description of the invention
Fig. 1 show one or more snippets existing use with memory metal line segment for " electricity --- machine " energy converter and remembers
The structural schematic diagram of the electromechanical lock of metal wire.
Fig. 2 show the structural representation of the intelligent padlock by memory wire driving unlock of first embodiment of the invention
Figure.
Fig. 3 show the schematic cross-sectional view of the intelligent padlock of Fig. 2.
Fig. 4 show the explosive view of the intelligent padlock of Fig. 2.
Fig. 5 show the sticking department of the intelligent padlock of Fig. 4, Rotational Cylindrical, driving mechanism cooperation structural schematic diagram.
Fig. 6 show the structural schematic diagram of the sticking department of Fig. 4.
Fig. 7 show the structural schematic diagram of the Rotational Cylindrical of Fig. 4.
Fig. 8 show the structural representation of the intelligent padlock by memory wire driving unlock of second embodiment of the invention
Figure.
Fig. 9 show the top view of the Rotational Cylindrical of the intelligent padlock of Fig. 8.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to specific embodiment, structure, feature and its effect is proposed according to the present invention, detailed description is as follows.
Refer to Fig. 2-5, the intelligent padlock by memory wire driving unlock of first embodiment of the invention, including lock
Beam 1, lock body 2, be contained in lock body 2 for the cooperation locking of lock bridge 1 sticking department 3, be used for and Rotational Cylindrical that sticking department 3 cooperates
4, the driving mechanism and power supply device 6 for driving Rotational Cylindrical 4 to rotate.
Lock bridge 1, lock body 2 realize the locking or unlatching of padlock by cooperation.Sticking department 3, Rotational Cylindrical 4, driving mechanism, power supply
Device 6 is contained in lock body 2.Rotational Cylindrical 4 can turn to unlocked position from latched position.Driving mechanism includes memory metal
One end of line 51, shape memory metal wire 51 is connect with lock body 2, and the other end of shape memory metal wire 51 is connect with Rotational Cylindrical 4.Memory gold
Belong to line 51 and pulls the rotation of Rotational Cylindrical 4 to realize unlock for being heated shortening.
Lock bridge 1 offers locking notch 10.There is lock bridge pressure spring 1t between lock bridge 1 and lock body 2.Further, lock bridge 1 includes
The connecting rod 13 of long locking bar 11, short locking bar 12, connection long locking bar 11 and short locking bar 12, long locking bar 11 and short locking bar 12 are opened respectively
Equipped with locking notch 10, lock bridge pressure spring 1t is equipped between long locking bar 11 and lock body 2, long locking bar 11 is equipped with spacing breach 110.
Lock body 2, which is rotatably connected to, is used to support multiple support wheels 20 that shape memory metal wire 51 shrinks it in reasonable track.
Specifically, lock body 2 includes lock housing 21, mounting rack 22, locking closure 23.Lock housing 21 and locking closure 23 form a closed space.Lock housing
21 offer accommodating chamber corresponding with sticking department 3, Rotational Cylindrical 4, mounting rack 22 respectively.Mounting rack 22 is for fixing 4 He of Rotational Cylindrical
Power supply device 6, mounting rack 22 are equipped with the positioning column 221 for installing power supply device 6 and support wheel 20.Lock housing 21 offers and believes
Cease acquisition portion 62, the corresponding window 212 of prompting device 63, window 213.
Further, the quantity of support wheel 20 is four, and one end of shape memory metal wire 51 and one of support wheel 20 connect
It connects, then is successively connect around the other end of shape memory metal wire 51 after remaining several support wheel 20 with the fixed part 42 of Rotational Cylindrical 4.
Fig. 6 is referred to, sticking department 3 is that a pair of symmetrically arranged part respectively can be contained in the lock tongue in locking notch 10,
Lock tongue is equipped with transmission protrusion 31 and occlusion portion 32 corresponding with locking notch 10.The transmission protrusion of occlusion portion 32 and another lock tongue
It is equipped between 31 and resets compressed spring 2t, reset compressed spring 2t for keeping 32 snap-lock notch 10 of occlusion portion.
Transmission protrusion 31 offers the blind hole 311 that accommodating portion resets compressed spring 2t on the end face of occlusion portion, stings
The upper surface in conjunction portion 32 is the guide surface 321 tilted down towards 10 direction of locking notch.Lock tongue further includes connection occlusion portion 32
With the connecting column 33 of transmission protrusion 31, the section of occlusion portion 32 is greater than the section of connecting column 33.
Fig. 7 is referred to, Rotational Cylindrical 4 is equipped with for squeezing the press section 41 of lock tongue and for the fixation of fixed memory metallochrome
Portion 42.Press section 41 rotates its two sides and squeezes symmetrical lock tongue respectively, and symmetrical lock tongue relative motion is made to be detached from locking notch
Realize the unlock of padlock.4 side of Rotational Cylindrical is equipped with limiting groove 43, and lock body 2, which is fixed with, to be partially accommodated in limiting groove 43
Limited post 24, the rotating range of limiting groove 43 and the cooperation limitation Rotational Cylindrical 4 of limited post 24.
Further, press section 41 is the plate body upwardly extended, and fixed part 42 is the column structure extended downwardly.It squeezes
Portion 41 rotates its two sides and squeezes corresponding transmission protrusion 31 respectively, and the occlusion portion 32 of lock tongue is made to be detached from the locking notch of lock bridge 1
10。
Shape memory metal wire 51 is connect with its power supply device that deformation occurs 6 is driven.Power supply device 6 includes and shape memory metal wire
The power supply module of 51 connections and the control module for controlling power supply module energization period.Power supply mould can be set by control module
The powers duration of block, such as powers duration are set as 0.1 second, i.e. power supply module can power off after being powered 0.1 second.
Power supply module includes battery 61, and the both ends of shape memory metal wire 51 pass through electric wire respectively and the positive and negative anodes of battery 61 connect
It connects, battery 61, shape memory metal wire 51, electric wire form an electrical circuit.Electrical circuit is provided with opening of making electrical circuit be turned on or off
It closes, switch is electrically connected with control module.
When electrical circuit is connected, the heating of shape memory metal wire 51, which is shortened, pulls the extruding lock tongue of Rotational Cylindrical 4 to be moved to unlocked position.Electricity
When circuit disconnects, shape memory metal wire 51 is cooling to restore length, and Rotational Cylindrical 4 is under the active force for resetting compressed spring 2t by lock tongue band
It is dynamic to reset.
In other embodiments of the invention, the both ends of shape memory metal wire 51 can also pass through electric wire and external power supply respectively
Positive and negative anodes connection.
Control module includes information collection portion 62 and verification information portion, and verification information portion is used for will be from information collection portion
62 unlocking information is compared with set information, is verified then control switch and electrical circuit is connected for a period of time.Control module
It is also connected with the prompting device 63 for prompting user's padlock state.
Information collection portion 62 is one or more of Bluetooth antenna, code keyboard, fingerprint sensor, data-interface.In
In the present embodiment, information collection portion 62 is fingerprint sensor 621 and data-interface 622.Fingerprint sensor 621 passes through fixed plate
623 are fixed on mounting rack 22.Data-interface can be used for connecting the charging of power supply power supply pond and/or connection external equipment setting verifying
Information.
Fig. 8-9 is referred to, in the intelligent padlock by memory wire driving unlock of second embodiment of the invention, lock
Determining portion 3 is that a pair of symmetrically arranged part respectively can be contained in the steel ball in locking notch 10.Rotational Cylindrical 4 is equipped with for by steel ball
The protrusion part 45 that is limited in locking notch 10 and for providing the barbed portion 46 for being detached from 10 space of locking notch for steel ball.
Protrusion reduction torsion spring 3t of the part 45 towards steel ball for keeping Rotational Cylindrical 4 is equipped between lock body 2 and Rotational Cylindrical 4.
When electrical circuit is connected, the heating of shape memory metal wire 51, which is shortened, pulls Rotational Cylindrical 4 to make Rotational Cylindrical 4 from protrusion 45 direction of part
The latched position of steel ball turns to unlocked position of the barbed portion 46 towards steel ball, to allow steel ball to be kept completely separate with locking notch
Realize the unlock of padlock.
When electrical circuit disconnects, shape memory metal wire 51 is cooling to restore length, Rotational Cylindrical 4 under the active force of reduction torsion spring 3t from
The unlocked position of barbed portion 46 towards steel ball turns to the lock that protrusion part 45 realizes padlock towards the latched position of steel ball
It is fixed.
Intelligent pad lock structure by memory wire driving unlock of the invention is simple, is replaced using shape memory metal wire existing
There is the electromagnet driving device of technology, change driving method, reduce costs, it is only necessary to which the driving power of very little makes
The service life of battery extends；The length that shape memory metal wire is arranged by support wheel support is longer to be easier to make shape memory metal wire
It elongates and is maintained at 2% or less its overall length and is shunk along reasonable track, to make the long service life of intelligent padlock.
More than, it is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, although this
Invention has been disclosed in a preferred embodiment above, and however, it is not intended to limit the invention, any person skilled in the art, In
It does not depart within the scope of technical solution of the present invention, when the technology contents using the disclosure above make a little change or are modified to equivalent
The equivalent embodiment of variation, but without departing from the technical solutions of the present invention, according to the technical essence of the invention to the above reality
Any simple modification, equivalent variations and modification made by example are applied, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. it is a kind of by memory wire driving unlock intelligent padlock, including lock bridge, lock body, be contained in the lock body for
The sticking department of lock bridge cooperation locking is used for and the Rotational Cylindrical of sticking department cooperation, which can be from latched position
Turning to unlocked position, which is characterized in that the intelligence padlock further includes the driving mechanism for driving the Rotational Cylindrical rotation,
The driving mechanism includes shape memory metal wire, and one end of the shape memory metal wire is connect with the lock body, the shape memory metal wire
The other end connect with the Rotational Cylindrical；The shape memory metal wire pulls the Rotational Cylindrical rotation to real for being heated shortening
Now unlock.
2. the intelligent padlock according to claim 1 by memory wire driving unlock, which is characterized in that the lock body
It is rotatably connected to and is used to support multiple support wheels that the shape memory metal wire shrinks it in reasonable track.
3. the intelligent padlock according to claim 1 by memory wire driving unlock, which is characterized in that the lock bridge
Locking notch is offered, the sticking department is that a pair of symmetrically arranged part respectively can be contained in the lock tongue in the locking notch
Or steel ball.
4. the intelligent padlock according to claim 3 by memory wire driving unlock, which is characterized in that the rotation
Column is equipped with fixed part for squeezing the press section of the lock tongue and for fixing the memory metal color, the press section be to
The plate body of upper extension, the fixed part are the column structure extended downwardly, which rotates its two sides and squeeze institute respectively
Symmetrical lock tongue is stated, the symmetrical lock tongue relative motion is made to be detached from the unlock that the locking notch realizes padlock.
Or, the Rotational Cylindrical is equipped with the protrusion part for the steel ball to be limited in the locking notch and is used for as the steel
Ball provides the barbed portion for being detached from the locking notch space, and the Rotational Cylindrical is partially toward the latched position of the steel ball from the protrusion
Unlocked position of the barbed portion towards the steel ball is turned to, to allow the steel ball and the locking notch to be kept completely separate realization padlock
Unlock.
5. the intelligent padlock according to claim 4 by memory wire driving unlock, which is characterized in that the rotation
Column side is equipped with limiting groove, and the lock body is fixed with the limited post being partially accommodated in the limiting groove, the limiting groove
The rotating range of the shifting block is limited with limited post cooperation.
6. the intelligent padlock according to claim 1 by memory wire driving unlock, which is characterized in that the memory
Metal wire, which is connected with, drives its power supply device that deformation occurs.
7. the intelligent padlock according to claim 6 by memory wire driving unlock, which is characterized in that the power supply
Device includes the control module of the power supply module connecting with the shape memory metal wire and the control power supply module energization period.
8. the intelligent padlock according to claim 7 by memory wire driving unlock, which is characterized in that the power supply
Module includes battery, and the both ends of the shape memory metal wire pass through electric wire respectively and connect with the positive and negative anodes of the battery, the battery,
The shape memory metal wire, the electric wire form an electrical circuit；The electrical circuit, which is provided with, makes the electrical circuit be turned on or off
Switch, the switch is electrically connected with the control module；When the electrical circuit is connected, the shape memory metal wire is heated contracting
It is short；When the electrical circuit disconnects, the shape memory metal wire is cooling to restore length.
9. the intelligent padlock according to claim 8 by memory wire driving unlock, which is characterized in that the control
Module includes information collection portion and verification information portion, and the verification information portion is used for will be from the unlocking in the information collection portion
Information is compared with set information, is verified, and controls electrical circuit described in the switch conduction for a period of time.
10. the intelligent padlock according to claim 9 by memory wire driving unlock, which is characterized in that the letter
Ceasing acquisition portion is one or more of Bluetooth antenna, code keyboard, fingerprint sensor, data-interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910690674.1A CN110439372A (en) | 2019-07-29 | 2019-07-29 | A kind of intelligent padlock by memory wire driving unlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910690674.1A CN110439372A (en) | 2019-07-29 | 2019-07-29 | A kind of intelligent padlock by memory wire driving unlock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110439372A true CN110439372A (en) | 2019-11-12 |
Family
ID=68432080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910690674.1A Pending CN110439372A (en) | 2019-07-29 | 2019-07-29 | A kind of intelligent padlock by memory wire driving unlock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110439372A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472621A (en) * | 2020-05-13 | 2020-07-31 | 武汉盛硕电子有限公司 | Electric control lock based on shape memory metal wire |
| CN112864656A (en) * | 2021-01-19 | 2021-05-28 | 国网山东省电力公司莱西市供电公司 | Novel electricity-testing grounding device |
| WO2022021723A1 (en) * | 2020-07-30 | 2022-02-03 | 浙江浦江梅花锁业集团有限公司 | Fingerprint lock cylinder replacement structure for padlock |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472621A (en) * | 2020-05-13 | 2020-07-31 | 武汉盛硕电子有限公司 | Electric control lock based on shape memory metal wire |
| WO2022021723A1 (en) * | 2020-07-30 | 2022-02-03 | 浙江浦江梅花锁业集团有限公司 | Fingerprint lock cylinder replacement structure for padlock |
| CN112864656A (en) * | 2021-01-19 | 2021-05-28 | 国网山东省电力公司莱西市供电公司 | Novel electricity-testing grounding device |
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