CN103556881B - Ring latch device - Google Patents
Ring latch device Download PDFInfo
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- CN103556881B CN103556881B CN201310533389.1A CN201310533389A CN103556881B CN 103556881 B CN103556881 B CN 103556881B CN 201310533389 A CN201310533389 A CN 201310533389A CN 103556881 B CN103556881 B CN 103556881B
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- screens
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- locking device
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Abstract
The invention relates to the field of a high voltage switch cabinet, in particular to a ring latch device. The ring latch device comprises a lock body and a linkage mechanism, a linkage driver and a control circuit which are positioned in the lock body; the lock body is provided with a key interface; and the key interface is used for receiving matching information or unlocking command information transmitted by an electronic key and then sending the information to the control circuit, can implement electronic matching with an external associated electricity testing device and can drive the linkage mechanism to actuate and implement unlocking of the ring latch device by the control circuit and the linkage driver. By matching between the key interface and the electronic key, accurate transfer of the information can be completed; the ring latch device is safe and reliable to use; and the ring latch device is independent of the high voltage swith cabinet, does not need to be arranged on the high voltage switch cabinet and is convenient to use.
Description
Technical field
The present invention relates to high-tension switch cabinet field, particularly relate to a kind of hanging locking device.
Background technology
At present, in the industrial production, electric five anti-refer to: prevent by mistake point, falsely close circuit breaker,
On-load switch, catalyst；Prevent on-load from dividing, close disconnecting switch；Prevent from closing in charged mistiming
Earthed switch；Chopper, on-load switch is closed when preventing earthed switch in the close position；Anti-
Only mistakenly entering into charged room.Electric five anti-require that high-tension switch cabinet is in the case of electrification in high voltage can not
Open cabinet door, it is necessary to forced blocking, prevent maloperation.So, before unblanking, need priori
Electricity.
In order to meet above-mentioned requirements, existing conventional design be on cabinet door install electroscopic device and
Unlocking apparatus, unblanks realizing electrical verification, such as, installs charged aobvious in prior art on cabinet door
Show device and electromagnetic lock, respectively as electroscopic device and unlocking apparatus, the height in high-tension switch cabinet
High pressure sensor is set on line ball, is low-voltage signal by high pressure converted, come by electrification display
Display electrification in high voltage situation, then artificial according to determining whether to open electromagnetic lock with or without high pressure,
The power supply of the electromagnetic lock used takes from voltage transformer (PT) power supply.
But, in prior art, often occur electrification display be not lit because of fault and
The situation that electromagnetic lock is not powered, if to have the biggest safety hidden for opening door operation of unblanking by force
Suffering from, so using existing electromagnetic lock to still suffer from potential safety hazard, it is unreliable to use, and existing
Electromagnetic lock structure is complicated, needs in cabinet doorway location and installation, in-convenience in use.At present, electronics
Lock and there is information and read the appearance of the electron key with transfer function, then real to high-tension switch cabinet
Existing safety and precise ground unlocking tool is significant.
Therefore, for above not enough, the invention provides a kind of hanging locking device.
Summary of the invention
(1) to solve the technical problem that
It is an object of the invention to provide a kind of hanging locking device safe and reliable, easy to use.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of hanging locking device, it includes lock
Body and the link gear, linkage driving device and the control circuit that are positioned in lock body；Control circuit is respectively
Being connected with the key interface on linkage driving device and lock body, key interface matches with electron key,
For receiving unpaired message or the command information of unblanking that electron key transmits, linkage driving device and connection
Motivation structure matches, and is used for driving link gear to unblank.
Wherein, linkage driving device is magnet driver.
Wherein, link gear includes U-shape sword iron and STATEMENT OF FEDERALLY SPONSORED；The free end of U-shape sword iron and lock
The lockhole of body matches, and it is recessed that the connection end of U-shape sword iron has screens, and is positioned in lock body；
The screens end of STATEMENT OF FEDERALLY SPONSORED is connected with U-shape sword iron that the screens of end is recessed to match, it is achieved lock U-shaped
The screens of bar, STATEMENT OF FEDERALLY SPONSORED matches with magnet driver.
Wherein, STATEMENT OF FEDERALLY SPONSORED having linkage block, it is close that magnet driver is positioned at linkage block
The side of screens end, recessed for STATEMENT OF FEDERALLY SPONSORED is released screens, linkage block is away from screens end one
Side is provided with release link, and this release link is for advancing screens recessed at the screens end of STATEMENT OF FEDERALLY SPONSORED.
Wherein, screens is recessed for groove or annular recesses.
Wherein, U-shape sword iron connects the flexible part of lower section connection of end.
Wherein, elastic component is spring.
Wherein, linkage block is provided with travel switch away from the side of screens end, and the trip switchs
Connect with control circuit, for unlocking condition information or blocking information are fed back to control
Circuit.
Wherein, control circuit includes padlock control module and the booster circuit module being connected, and rises
Volt circuit module is connected with linkage driving device, and padlock control module is connected with key interface.
Another aspect of the present invention additionally provides a kind of high-tension switch cabinet, and it has above-mentioned padlock dress
Put.
(3) beneficial effect
The technique scheme of the present invention has the advantage that the hanging locking device that the present invention provides
Key interface is set on lock body, for receiving unpaired message or the instruction of unblanking that electron key transmits
Information, then sends this information to control circuit, it is possible to achieve the electrical verification that is associated with outside fills
The electron pairing put, and by control circuit and linkage driving device, link gear can be driven
Action, it is achieved unblanking of hanging locking device, is matched with electron key by key interface,
Complete the accurate transmission of information, safe and reliable, and this hanging locking device presses off independent of height
Close cabinet, high-voltage switch gear need not be arranged on cashier's office in a shop, easy to use.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of embodiment of the present invention high voltage switch cabinet electricity check unlocking system；
Fig. 2 is the parts annexation figure of electroscopic device in the embodiment of the present invention；
Fig. 3 is the parts annexation figure of electron key in the embodiment of the present invention；
Fig. 4 is the structural relation figure of hanging locking device in the embodiment of the present invention.
In figure, 1: high pressure sensor；2: electroscopic device；3: electron key；4: padlock fills
Put；21: electrical verification interface；31: electrical verification joint；32: display lamp；33: charging inlet；40:
STATEMENT OF FEDERALLY SPONSORED；41: key interface；42: lock body；43: release link；44: linkage block；45:
Travel switch；46: Self-retaining electromagnet；47: back-moving spring；48: control circuit；49:U
Shape locking bar.
Detailed description of the invention
Make to retouch the most in detail to the detailed description of the invention of the present invention with embodiment below in conjunction with the accompanying drawings
State.Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
As it is shown in figure 1, the high voltage switch cabinet electricity check unlocking system that the embodiment of the present invention provides includes
High pressure sensor 1, electroscopic device 2, electron key 3 and hanging locking device 4, high pressure sensor 1
Being arranged on the high-tension bus-bar in high-tension switch cabinet, high pressure sensor 1 uses casing sensor,
Electroscopic device 2 is connected with high pressure sensor 1, and the electrical verification joint 31 of electron key 3 fills with electrical verification
The electrical verification interface 21 putting 2 matches, for reading the unpaired message in electroscopic device 2 and reception
Information that what electroscopic device 2 transmitted unblank, electrical verification joint 31 and the hanging locking device 4 of electron key 3
Key interface 41 match, for unpaired message and the information of unblanking are passed to hanging locking device 4,
In figure, dotted line represents matching relationship.
Wherein, electroscopic device 2 can obtain high-tension switch cabinet mesohigh by high pressure sensor 1
The whether charged information of electric wire, and then can decide whether to unblank；Electron key 3 points
Do not match with electroscopic device 2 and hanging locking device 4, on the one hand, electroscopic device 2 can be read
Information coding (i.e. unpaired message), be inserted into hanging locking device 4, it is achieved electroscopic device 2 He
Any pairing of hanging locking device 4, on the other hand, electroscopic device 2 and hanging locking device 4 complete to join
To rear, being inserted by electron key 3 after electroscopic device 2 carries out communication checking, electron key 3 can
So that the command information of unblanking that electroscopic device 2 transmits will be received, when in high voltage power distributing cabinet without high pressure
Time, electron key 3 obtains instruction of unblanking, then electron key 3 is inserted padlock and carry out communication
After checking, it is achieved unblank；When there being high pressure in high voltage power distributing cabinet, electron key 3 can not receive
To instruction of unblanking, unblank to terminate.
Specifically, as in figure 2 it is shown, electroscopic device 2 include being sequentially connected with reduction voltage circuit module,
Rectifying and voltage-stabilizing module, electrical verification control module and electrical verification interface 21, reduction voltage circuit module passes with high pressure
Sensor 1 connects, and electrical verification interface 21 matches with electron key 3.Wherein, rectifying and voltage-stabilizing module
For the one group of rectifier bridge being connected and Zener diode, this group rectifier bridge and Zener diode conduct
Sampling output circuit, the low and high level of its output can use as the sampling of electrical verification control module；Test
Electric control module is MCU controller, and it uses XX32 position single-chip microcomputer, and it can be defeated from sampling
Go out circuit and obtain band electrical information accurately and reliably, can be to electronics key by this electrical verification control module
The information of spoon 3 input carries out data check, and the power supply of MCU controller is powered from electron key
3 power supplys carried, it is not necessary to install PT in high voltage power distributing cabinet and power；Electrical verification interface 21 is 4
The aviation plug of core, is matched by this aviation interface and electron key 3, electrical verification control module
And communication and data transfer between electron key 3, can be carried out.
Specifically, as it is shown on figure 3, electron key 3 includes charging module, the electricity being sequentially connected with
Source module, key controller module and electrical verification joint 31, when electrical verification, electrical verification joint 31 and electrical verification
The electrical verification interface 21 of device 2 matches, and key controller module includes pairing control unit and unblock
Control unit, is respectively used to realize matching function and electrical verification unlocking function, it is preferable that pairing control
Unit processed connects pairing button, and unlocking control unit connection has unblock button.Power module is adopted
Powering with the chargeable lithium battery of 4.2V, charging inlet 33 uses the micro USB that market is general
Mouthful, this power module can be electrical verification control module and the control of hanging locking device 4 of electroscopic device 2
Circuit 48 provides power supply；Charging module uses conventional charging circuit；Key controller module uses
The single-chip microcomputer of STC15F1004 is as main control circuit 48；Electrical verification joint 31 uses Aviation Connector,
It can be connected with the aviation Interference fit of electroscopic device 2.Key controller module passes through electrical verification joint
31 and the electrical verification interface 21 of electroscopic device 2 match, on the one hand can read electroscopic device 2
Information coding, be inserted into hanging locking device 4, it is achieved joining of electroscopic device 2 and hanging locking device 4
Right, on the other hand, communication checking can be carried out with electroscopic device 2, obtain instruction of unblanking.
Certainly, matching function and the electrical verification unlocking function of electron key 3 can pass through two lists respectively
Only key realizes, and so, electron key 3 just includes that lock key two kinds conciliate by pairing key,
Key controller module in pairing key only includes pairing control unit, it is achieved matching function；Solve
Key controller module in lock key only includes unblock control unit, it is achieved electrical verification unlocking function.
Preferably, electron key 3 also includes display module and alarm modules, display module, police
Report module is all connected with key controller module, and it is internal that display module includes being arranged on electron key 3
Two green LEDs and an emitting red light diode, its as state display use,
Two green LEDs and emitting red light diode are as display lamp 32, two green emittings
Diode is respectively as the first green light and the second green light, and the first green light is connected to pairing control unit,
Second green light is connected to unlock control unit, and emitting red light diode is as red light；Alarm modules
For being arranged on a buzzer within electron key 3, it is reported to the police as alarm condition and uses,
When there being high pressure in high-tension switch cabinet, alarm sound, when electron key 3 operation failure, have
Tip Sound.When electron key 3 insert electroscopic device 2 read coding information success after, first
Green light flashes；After electron key 3 inserts hanging locking device 4 successful matching, the first green light flicker；
When in high-tension switch cabinet without high pressure, electron key 3 inserts electroscopic device 2, obtains instruction of unblanking
After, the second green light is lighted；When electron key 3 inserts unlocking apparatus, unblanking successfully, second is green
Lamp flashes；When there being high pressure in high-tension switch cabinet, electron key 3 inserts electroscopic device 2, red light
Flicker, meanwhile, alarm sound.
Further, as shown in Figure 4, in high-tension switch cabinet unlocking system, in the present invention
Hanging locking device 4 uses as unlocking apparatus, and it includes lock body 42 and the connection being positioned in lock body 42
Motivation structure, magnet driver (as the driver of link gear), control circuit 48 and key
Spoon interface 41；Control circuit 48 is connected with magnet driver and key interface 41 respectively, key
Spoon interface 41 matches with electron key 3；Magnet driver and link gear match to drive
Dynamic link gear is unblanked.Wherein, magnet driver is Self-retaining electromagnet 46, electron key
3 key interface 41 inserting hanging locking device 4, instruct the control being delivered to hanging locking device 4 by unblanking
Circuit 48 processed, control circuit 48 controls magnet driver, and the electric magnet of magnet driver moves
Making, touch link gear, link gear works, and hanging locking device 4 is opened, it is achieved unlock.
When the key controller module of electron key includes matching control unit, by electron key
When inserting the key interface of hanging locking device, hanging locking device can also realize the electronics with electroscopic device
Pairing.
So, the lock body of hanging locking device arranges key interface, be used for receiving electron key and transmit
Unpaired message or command information of unblanking, then send this information to control circuit, on the one hand
The electron pairing with electroscopic device can be realized, on the other hand realize unblanking of hanging locking device, hang
Locking device need not wired connection, is matched with electron key by key interface, can complete
The transmission of information, safe and reliable, and this hanging locking device is independent of high-tension switch cabinet, no
With being arranged on high-voltage switch gear cashier's office in a shop, easy to use.
Specifically, link gear include U-shape sword iron 49, the STATEMENT OF FEDERALLY SPONSORED 40 that is positioned in lock body 42,
Elastic component and release link 43；The free end of U-shape sword iron 49 matches with the lockhole of lock body 42,
It is recessed that the connection end of U-shape sword iron 49 has screens, and is positioned in lock body 42, and this screens is recessed
Connect an annular recesses of end for U-shape sword iron 49, the lower section connecting end is connected with elastic component, bullet
Property part is back-moving spring 47；The screens end of STATEMENT OF FEDERALLY SPONSORED 40 is connected the screens of end with U-shape sword iron 49
Recessed match, it is achieved the screens to U-shape sword iron 49, STATEMENT OF FEDERALLY SPONSORED 40 has linkage block
44, magnet driver is positioned at linkage block 44 near the side of screens end, for by STATEMENT OF FEDERALLY SPONSORED
40 release screens recessed, release link 43 be positioned at linkage block 44 away from screens end side, be used for
Advancing screens recessed at the screens end of STATEMENT OF FEDERALLY SPONSORED, linkage block 44 is provided with away from screens end side
Travel switch 45, the trip switch 45 is connected with control circuit 48.Hanging locking device 4 uses certainly
Keep electric magnet 46 as the driver of link gear, after locking, there is no power consumption.
Under the control of control circuit 48, Self-retaining electromagnet 46 promotes linkage block 44 to the left
Mobile, the screens end of STATEMENT OF FEDERALLY SPONSORED 40 is pushed out U-shape sword iron 49, and to connect the screens of end recessed, U
Shape locking bar 49, under it connects the ejection effect of the elastic component below end, moves up, and then U
Shape locking bar 49 free end eject lockhole, it is achieved that unlocking action, meanwhile, travel switch 45 to
Left action touches travel switch 45, owing to travel switch 45 and control circuit 48 connect, controls
Circuit 48 obtains the information of unblanking, and the whole process of unblanking terminates；U-shape sword iron 49 is pressed, with
Time press in release link 43, release link 43 promotes linkage block 44 to move right, and electric magnet is by interior
Portion's permanent magnetic action keeps adhesive, and the screens end of STATEMENT OF FEDERALLY SPONSORED 40 enters U-shape sword iron 49 and connects end
Screens is recessed, it is achieved locking, and meanwhile, travel switch 45 disconnects, and control electricity is passed in out code
Road 48, whole latching process terminates.
Control circuit 48 includes padlock control module and the booster circuit module being connected, and rises piezoelectricity
Road module is connected with Self-retaining electromagnet 46, and travel switch 45, key interface 41 are all and padlock
Control module connects.Padlock control module is MCU controller, and booster circuit module is conventional liter
Volt circuit, key interface 41 uses aviation interface.Electron key 3 inserts key interface 41, presses
Lower unblock button, padlock control module is passed through key interface 41, is received instruction of unblanking, pass through
Booster circuit module controls self-sustaining electromagnetic lock, and self-sustaining electromagnetic lock performs unlocking action；Pass through
Travel switch 45 is connected with padlock control module, can will unblank or the information of out code feeds back to
Padlock control module.
It is worked that the pairing of embodiment of the present invention high voltage switch cabinet electricity check unlocking system and electrical verification unlock
Cheng Wei:
1, electron key 3 inserts the electrical verification interface 21 of electroscopic device 2, presses pairing button, this
Time electrical verification control module within electroscopic device 2 powered by electron key 3, electrical verification control module
Starting working, the pairing control unit of electron key 3 domestic key control module reads electrical verification dress
Put the information coding of 2 internal electrical verification control modules, the first green light flicker, illustrate to read successfully,
Take off green light Chang Liang after electron key 3；Explanation operation failure when having a prompt tone, need to repeat more than
Action.
2, read successful electron key 3 and insert the key interface 41 of hanging locking device 4, again press
Lower pairing button, now the first green light flicker, illustrates successful matching, takes off after key first green
Lamp Chang Liang；When having prompt tone, explanation operation failure, need to repeat above action.Work as high-tension switch cabinet
On when having many hanging locking devices 4, these many hanging locking devices 4 can be matched.
3, electron key 3 is inserted into the electrical verification interface 21 of electroscopic device 2, presses unblock button,
Electron key 3 and electroscopic device 2 carry out communication checking, time in high-tension switch cabinet without high pressure, and electricity
Sub-key 3 receives not charged information (information of i.e. unblanking), and the second green light is lighted, by electronics key
Spoon 3 inserts the key interface 41 of hanging locking device 4, presses unblock button, and the second green light flashes,
Unblank successfully；U-shaped lock need to be pressed under electron key 3 connection status during hanging locking device 4 locking
Bar 49, the second green light Chang Liang, it is not connected to key when carrying out lock operation, electron key 3 has
Alarm；When aforesaid operations has prompt tone, explanation operation failure, need to repeat above action；
4, when high-tension switch cabinet inner high voltage has electricity, electron key 3 alarm sound, unblank to terminate.
In the case of high-voltage switch gear cashier's office in a shop arranges many hanging locking devices 4, now grasp with electron key 3
Making any hanging locking device 4 and all can have alarm sound, hanging locking device 4 can not be opened.
In sum, in the high voltage switch cabinet electricity check unlocking system that the embodiment of the present invention provides, logical
Cross electroscopic device 2 and the whether charged information of high-tension bus-bar can be detected, and then may determine that
Whether can unblank, then can realize electroscopic device 2 by electron key 3 and hanging locking device 4 is joined
Right, then the information of unblanking can be passed to hanging locking device 4 by electroscopic device 2 by electron key 3,
Realize the unblock of hanging locking device 4；Can be electroscopic device 2 by the power module in electron key 3
Electrical verification control module and the control circuit 48 of hanging locking device 4 power supply is provided, it is not necessary to individually exist
Electroscopic device 2 and hanging locking device 4 provide power supply；On the lock body of hanging locking device 4, key is set
Interface, for receiving unpaired message or the command information of unblanking that electron key 3 transmits, then will
This information sends to control circuit, can realize the electron pairing with electroscopic device, it is possible to realize hanging
Unblanking of locking device 4, hanging locking device 4 need not wired connection, safe and reliable, and
This hanging locking device 4, independent of high-tension switch cabinet, need not be arranged on high-voltage switch gear cashier's office in a shop, user
Just.
The above is only the preferred embodiment of the present invention, it is noted that lead for this technology
For the those of ordinary skill in territory, on the premise of without departing from the technology of the present invention principle, it is also possible to
Making some improvement and modification, these improve and modification also should be regarded as protection scope of the present invention.
Claims (5)
1. a hanging locking device, it is characterised in that: it includes lock body (42) and is positioned at lock body (42)
In link gear, linkage driving device and control circuit (48)；Control circuit (48) respectively with
Key interface (41) on linkage driving device and lock body (42) connects, key interface (41)
Match with electron key (3), be used for receiving unpaired message that electron key (3) transmits or
Unblanking command information, linkage driving device and link gear match, and are used for driving link gear to open
Lock；
Linkage driving device is magnet driver；
Link gear includes U-shape sword iron (49) and STATEMENT OF FEDERALLY SPONSORED (40)；U-shape sword iron (49)
Free end matches with the lockhole of lock body (42), and the connection end of U-shape sword iron (49) has card
Position is recessed, and is positioned in lock body (42)；The screens end of STATEMENT OF FEDERALLY SPONSORED (40) and U-shape sword iron (49)
The screens of connection end is recessed to match, it is achieved the screens to U-shape sword iron (49), STATEMENT OF FEDERALLY SPONSORED (40)
Match with magnet driver；
Having linkage block (44) in STATEMENT OF FEDERALLY SPONSORED (40), magnet driver is positioned at linkage block
(44) near the side of screens end, recessed for STATEMENT OF FEDERALLY SPONSORED (40) is released screens, linkage
Block (44) is provided with release link (43) away from screens end side, and this release link (43) is used for
Advance screens recessed at the screens end of STATEMENT OF FEDERALLY SPONSORED (40)；
Screens is recessed for groove or annular recesses；
U-shape sword iron (49) connects the lower section of end and connects flexible part.
Hanging locking device the most according to claim 1, it is characterised in that: elastic component is spring.
Hanging locking device the most according to claim 1, it is characterised in that: linkage block (44)
Side away from screens end is provided with travel switch (45), the trip switch (45) and control electricity
Road (48) connects, for unlocking condition information or blocking information feed back to control electricity
Road (48).
4. according to the hanging locking device described in any one of claim 1-3, it is characterised in that: control
Circuit (48) includes padlock control module and the booster circuit module being connected, booster circuit mould
Block is connected with linkage driving device, and padlock control module is connected with key interface (41).
5. a high-tension switch cabinet, it has the padlock dress according to any one of claim 1-4
Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533389.1A CN103556881B (en) | 2013-10-31 | 2013-10-31 | Ring latch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533389.1A CN103556881B (en) | 2013-10-31 | 2013-10-31 | Ring latch device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103556881A CN103556881A (en) | 2014-02-05 |
| CN103556881B true CN103556881B (en) | 2017-01-11 |
Family
ID=50011217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310533389.1A Active CN103556881B (en) | 2013-10-31 | 2013-10-31 | Ring latch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103556881B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481310B (en) * | 2014-12-04 | 2017-04-19 | 国网河南省电力公司鹤壁供电公司 | Five-anti locking device and locking method |
| CN108155038A (en) * | 2017-08-09 | 2018-06-12 | 华电北瑞电气(北京)有限公司 | A kind of electrical cabinet electrical verification anti-misoperation system |
| CN108320364A (en) * | 2018-03-30 | 2018-07-24 | 马建峰 | A kind of GPS Intelligent logistics padlock |
| CN109281553A (en) * | 2018-11-09 | 2019-01-29 | 深圳供电局有限公司 | Padlock |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2443111Y (en) * | 2000-06-07 | 2001-08-15 | 王峰岩 | Code electromagnetic lock |
| CN201103289Y (en) * | 2007-10-24 | 2008-08-20 | 吕凤林 | Electrically inducing automatic padlock |
| CN201218001Y (en) * | 2008-06-30 | 2009-04-08 | 珠海优特电力科技股份有限公司 | Anti-misoperation padlock |
| CN203584048U (en) * | 2013-10-31 | 2014-05-07 | 北京微能汇通电力技术有限公司 | Padlock device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2458684B (en) * | 2008-03-27 | 2013-03-13 | Xena Ip Holdings Ltd | Locks |
-
2013
- 2013-10-31 CN CN201310533389.1A patent/CN103556881B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2443111Y (en) * | 2000-06-07 | 2001-08-15 | 王峰岩 | Code electromagnetic lock |
| CN201103289Y (en) * | 2007-10-24 | 2008-08-20 | 吕凤林 | Electrically inducing automatic padlock |
| CN201218001Y (en) * | 2008-06-30 | 2009-04-08 | 珠海优特电力科技股份有限公司 | Anti-misoperation padlock |
| CN203584048U (en) * | 2013-10-31 | 2014-05-07 | 北京微能汇通电力技术有限公司 | Padlock device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103556881A (en) | 2014-02-05 |
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