CN112233279A - Computer key for transformer substation anti-error safety system - Google Patents
Computer key for transformer substation anti-error safety system Download PDFInfo
- Publication number
- CN112233279A CN112233279A CN201910567053.4A CN201910567053A CN112233279A CN 112233279 A CN112233279 A CN 112233279A CN 201910567053 A CN201910567053 A CN 201910567053A CN 112233279 A CN112233279 A CN 112233279A
- Authority
- CN
- China
- Prior art keywords
- code reading
- computer key
- rod
- module
- shell
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B19/00—Keys; Accessories therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10158—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves methods and means used by the interrogation device for reliably powering the wireless record carriers using an electromagnetic interrogation field
- G06K7/10178—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves methods and means used by the interrogation device for reliably powering the wireless record carriers using an electromagnetic interrogation field including auxiliary means for focusing, repeating or boosting the electromagnetic interrogation field
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
- G07C9/00714—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with passive electrical components, e.g. resistor, capacitor, inductor
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses a computer key for a transformer substation anti-error safety system, which comprises a shell, a fixed rod, a rotary rod and a code reading module, wherein the code reading module comprises a code reading coil, a code reading circuit and a module shell, the code reading coil and the code reading circuit are arranged in the module shell, the code reading coil is used for generating code reading electromagnetic waves, and the code reading circuit is used for reading codes and outputting code reading signals; the insulation ring is arranged between the rotary rod and the code reading module, the insulation ring is sleeved on the rotary rod, and the code reading module is sleeved on the insulation ring. The invention combines the characteristic of reducing stray capacitance of the insulating ring and the improvement of the computer key structure, and increases the code reading distance and the code reading reliability of the computer key on the premise of not increasing the size of the computer key.
Description
Technical Field
The invention relates to the technical field of electronic unlocking, in particular to a computer key for a transformer substation anti-error safety system.
Background
In the field of transformer substation anti-error safety systems, a computer key plays a very important role. However, due to the diversity of the lock, the versatility and reliability of the computer key, especially the code reading capability of the key, are very challenging.
The principle of computer key code reading in the prior art is mainly near field RFID technology, and because the power and the volume of the computer key are limited, the near field RFID identification distance is limited, the situation that the code reading is unstable or even the code reading cannot be carried out frequently occurs, and the computer key cannot be unlocked normally.
In the prior art, a computer key adopts a design of changing the shape of a coil to increase the reading distance, but the change usually increases the overall size of the computer key, and has the problem of influencing the overall appearance and the operation convenience of the computer key.
Disclosure of Invention
In view of this, the technical problem to be solved by the present invention is to provide a computer key for a substation anti-error safety system, which improves a computer key structure by adding an insulating ring and a magnetic column, and increases a code reading distance and code reading reliability of the computer key on the premise of not increasing the overall size of the computer key.
According to an aspect of an embodiment of the invention, a computer key for a substation anti-misoperation safety system comprises:
a housing having a recess at a top thereof, the recess having a locating hole therein;
the side wall of the top end of the fixed rod is provided with an unlocking bulge, the bottom end of the fixed rod is provided with a limiting step, and the limiting step is limited in a limiting hole in the recessed part and matched with the limiting hole, so that the fixed rod synchronously rotates along with the shell;
the side wall of the top end of the rotating rod is provided with a locking bulge, the rotating rod is sleeved on the fixing rod and is in rotating fit with the fixing rod, so that the unlocking bulge on the fixing rod can pass through the limiting hole on the shell and can be driven by the shell to rotate to unlock;
the code reading module comprises a code reading coil, a code reading circuit and a module shell, wherein the code reading coil and the code reading circuit are arranged in the module shell, the code reading coil is used for generating code reading electromagnetic waves, and the code reading circuit is used for reading codes and outputting code reading signals;
the insulating ring is arranged between the rotary rod and the code reading module, the insulating ring is sleeved on the rotary rod, and the code reading module is sleeved on the insulating ring.
According to an aspect of the embodiment of the present invention, the top center of the fixing rod has a hollow chamber, and a magnetic pillar is inserted into the hollow chamber.
According to an aspect of the embodiment of the present invention, the insulating ring includes a ring body and a functional material in the ring body, the ring body is made of a polymer insulating material, and the functional material is a high magnetic permeability material.
According to an aspect of an embodiment of the invention, the high magnetic permeability material is a ferrite material.
According to an aspect of the embodiment of the present invention, the projection of the code reading coil in the module housing on the insulating ring is located at the middle position of the insulating ring.
According to an aspect of an embodiment of the present invention, the fixing bar is a non-magnetic material having a predetermined strength and hardness.
According to one aspect of the embodiment of the invention, the unlocking protrusion and the locking protrusion at the top end of the fixed rod and the top end of the rotating rod are respectively used for unlocking and locking in cooperation with a lock corresponding to the computer key.
The invention has the beneficial effects that: through the improvement on the overall structure of the computer key, the code reading distance and the code reading reliability of the computer key are increased on the premise of not increasing the size of the computer key. The insulating ring and the magnetic column are arranged in the computer key, so that the influence of stray capacitance of the electric conductor on a driving circuit is avoided, the conduction efficiency of electromagnetic waves is enhanced, and the reliability of remote and multi-working-condition reading is ensured on the premise of not increasing the sizes of the coil and the whole machine and the power consumption of a code reading circuit.
Drawings
FIG. 1 is a schematic perspective view of a computer key according to the present invention;
FIG. 2 is a schematic view of the internal structure of the computer key according to the present invention;
FIG. 3 is a schematic view of a partial internal structure of the computer key according to the present invention;
FIG. 4 is a diagram of a computer key unlock state of the present invention;
the figure includes: the shell 10, 101 is a concave part, 102 is a limiting hole; the fixing rod 20, the hollow cavity 201, the unlocking protrusion 202 and the limiting step 203; the rotating lever 30, the locking protrusion 301; an insulating ring 40; a magnetic pillar 50; the code reading module 60, a module shell 601, a code reading coil 602 and a code reading circuit 603; lock 70, receiving coil 701, coil housing 702, lock cylinder 703, lock body chamber 704, lock bolt 705.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings, embodiments and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The following discloses a plurality of different embodiments and examples, which are used for realizing the response of the computer key to different working conditions. To simplify the disclosure of the present invention, only certain modes or examples are described below. They are, therefore, merely examples and are not intended to limit the invention. Furthermore, any aspect or feature of any embodiment or example described below may be shared with any other embodiment or example, if desired.
Example 1
The shell 10, 101 is a concave part, 102 is a limiting hole; the fixing rod 20, the hollow cavity 201, the unlocking protrusion 202 and the limiting step 203; the rotating lever 30, the locking protrusion 301; an insulating ring 40; a magnetic pillar 50; the code reading module 60, a module shell 601, a code reading coil 602 and a code reading circuit 603; lock 70, receiving coil 701, coil housing 702, lock cylinder 703, lock body chamber 704, lock bolt 705.
Referring to fig. 1, 2 and 3, a computer key for a substation anti-misoperation safety system comprises:
a housing 10 having a recess 101 at a top of the housing 10, the recess 101 having a positioning hole 102 therein;
the side wall of the top end of the fixed rod 20 is provided with an unlocking protrusion 202, the bottom end of the fixed rod 20 is provided with a limiting step 203, the limiting step 203 is limited in a limiting hole 102 in the recessed part 101 and matched with the limiting hole 102, so that the fixed rod 20 synchronously rotates along with the shell 10;
a locking protrusion 301 is arranged on a side wall of a top end of the rotating rod 30, the rotating rod 30 is sleeved on the fixing rod 20 and is in rotating fit with the fixing rod 20, so that the unlocking protrusion 202 on the fixing rod 20 can pass through the limiting hole 102 on the shell 10 and be driven by the shell 10 to rotate for unlocking;
the code reading module 60 comprises a code reading coil 602, a code reading circuit 603 and a module shell 601, wherein the code reading coil 602 and the code reading circuit 603 are arranged in the module shell 601, the code reading coil 602 is used for generating code reading electromagnetic waves, and the code reading circuit 603 is used for reading codes and outputting code reading signals;
the insulating ring 40 is arranged between the rotating rod 30 and the code reading module 60, the insulating ring 40 is sleeved on the rotating rod 30, and the code reading module 60 is sleeved on the insulating ring 40.
In this embodiment, the insulating ring 40 includes a ring body and a functional material in the ring body, the ring body is made of a polymer insulating material, and the functional material is a high-permeability material. Optionally, the high magnetic permeability material is a ferrite material. The insulating ring 40 may be a ring made of a high magnetic permeability material and then wrapped (coated) with a polymer insulating material, or a ring made of a polymer insulating material and then filled with a high magnetic permeability material, i.e., a ferrite material, but the invention is not limited thereto.
In this embodiment, the projection of the code reading coil 602 in the module housing 60 on the insulating ring 40 is located at the middle position of the insulating ring 40, that is, centered on half of the height of the insulating ring 40. The main purpose is to better play the role of the insulating ring 40 in reducing stray capacitance between the code reading coil 602 and the rotating rod 30, so as to avoid the influence of the stray capacitance on the code reading circuit 603.
In this embodiment, the fixing rod 20 is made of a non-magnetic material and has a predetermined strength and hardness. The preset strength and hardness are mainly determined according to the torque required by the lock cylinder 703 of the lock 70 when the lock cylinder is opened, the strength is not less than 520MPa, the hardness is not less than 180HB, and optionally, the strength is 530 +/-10 MPa, and the hardness is 190 +/-10 HB.
In this embodiment, the unlocking protrusion 202 and the locking protrusion 301 on the top ends of the fixed rod 20 and the rotating rod 30 are respectively used for unlocking and locking in cooperation with the lock 70 corresponding to the computer key.
Example 2
Referring to fig. 1, 2 and 3, a computer key for a substation anti-misoperation safety system comprises:
a housing 10 having a recess 101 at a top of the housing 10, the recess 101 having a positioning hole 102 therein;
the side wall of the top end of the fixed rod 20 is provided with an unlocking protrusion 202, the bottom end of the fixed rod 20 is provided with a limiting step 203, the limiting step 203 is limited in a limiting hole 102 in the recessed part 101 and matched with the limiting hole 102, so that the fixed rod 20 synchronously rotates along with the shell 10;
a locking protrusion 301 is arranged on a side wall of a top end of the rotating rod 30, the rotating rod 30 is sleeved on the fixing rod 20 and is in rotating fit with the fixing rod 20, so that the unlocking protrusion 202 on the fixing rod 20 can pass through the limiting hole 102 on the shell 10 and be driven by the shell 10 to rotate for unlocking;
the code reading module 60 comprises a code reading coil 602, a code reading circuit 603 and a module shell 601, wherein the code reading coil 602 and the code reading circuit 603 are arranged in the module shell 601, the code reading coil 602 is used for generating code reading electromagnetic waves, and the code reading circuit 603 is used for reading codes and outputting code reading signals;
the insulating ring 40 is arranged between the rotating rod 30 and the code reading module 60, the insulating ring 40 is sleeved on the rotating rod 30, and the code reading module 60 is sleeved on the insulating ring 40.
In this embodiment, the top center of the fixing rod 20 has a hollow chamber 201, and the magnetic pillar 50 is inserted into the hollow chamber 201.
The main difference between the embodiment 2 and the embodiment 1 is that a hollow chamber 201 is additionally provided at the center of the top end of the fixing rod 20, and a magnetic column 50 is inserted into the hollow chamber 201. Through setting up magnetic column 50, at computer key authorization code reading and unblock in-process, magnetic column 50 can play and reduce the magnetic leakage, avoids drive power loss's effect.
Referring to fig. 1, 2, 3 and 4, in the above embodiment 1 or/and 2, specifically, the rotating rod 30 is sleeved on the fixing rod 20 and can be rotated and unlocked along the axial direction thereof, the insulating ring 40 is sleeved on the rotating rod 30, the magnetic pillar 50 is installed in the hollow cavity 201 at the top end of the fixing rod 20, and the whole set of the fixing rod 20, the rotating rod 30, the insulating ring 40 and the magnetic pillar 50 passes through the middle shaft hole of the code reading module 60; is mounted in a limiting hole 102 in a recess 101 at the top of the housing 10 and is fixed with the housing 10 by a limiting step 203. In the code reading module 60, the code reading coil 602 is installed in a circular ring, and is integrally sleeved in the cavity inside the module housing 601, and the code reading circuit 603 is located inside the housing 10 and is responsible for controlling the operation of the code reading coil 602.
The lock body 70 used in cooperation with the computer key includes: the lock comprises a receiving coil 701, a coil shell 702, a lock cylinder 703 and a lock cavity 704, wherein the receiving coil 701 is arranged in the coil shell 702, and the coil shell 702 is sleeved on the lock cylinder 703 and arranged in the lock cavity 704 together.
During the unlocking operation, the RFID code reading identification is needed firstly. At this time, the unlocking mechanism of the computer key is inserted into the lock hole of the lock body 70, and the unlocking protrusion 202 of the fixed lever 20 and the locking protrusion 301 of the rotary lever 30 are respectively in fit contact with corresponding portions of the lock cylinder 703. When the computer key sends an unlocking instruction, the code reading circuit 603 outputs an electric signal, electromagnetic waves are generated by the code reading coil 602, the electromagnetic wave main body is axially conducted along the insulating ring 40, and generates a feedback magnetic field after being received by the receiving coil 701, and the feedback magnetic field is identified by the code reading coil 602 and then is processed by the code reading circuit 603, so that a code reading result is given. If the identification is correct, the code reading circuit 603 generates an unlocking instruction, otherwise, no response is made. When the lock body 70 receives an unlocking command, the housing 10 can be rotated to make the unlocking protrusion 202 on the fixing rod 20 drive the lock cylinder 703 to rotate, so as to unlock the lock bolt 705 and open the lock 70.
The beneficial effects of the embodiment:
1. the insulating ring is arranged between the code reading module and the rotary rod, so that the distance between the code reading coil and the metal surface of the rotary rod is increased, and the stray capacitance is reduced, thereby reducing the loss of transmitting power, indirectly improving the signal transmission power and increasing the signal recognition distance;
2. the magnetic column is arranged in the fixed rod, so that electromagnetic waves are restricted by the magnetic column to generate higher transmission efficiency, and a computer key realizes longer reading distance and higher code reading accuracy under limited size space and emission power, and avoids the phenomenon that unlocking cannot be normally authorized due to insufficient code reading distance and accuracy;
3. through the high-integration design, the computer key has higher compatibility and is suitable for locks of different types.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any modifications, equivalent substitutions, improvements, etc. easily contemplated by those skilled in the art within the spirit and scope of the present invention should be covered within the scope of the present invention.
Claims (7)
1. A computer key for a substation anti-error security system, comprising:
a housing having a recess at a top thereof, the recess having a locating hole therein;
the side wall of the top end of the fixed rod is provided with an unlocking bulge, the bottom end of the fixed rod is provided with a limiting step, and the limiting step is limited in a limiting hole in the recessed part and matched with the limiting hole, so that the fixed rod synchronously rotates along with the shell;
the side wall of the top end of the rotating rod is provided with a locking bulge, the rotating rod is sleeved on the fixing rod and is in rotating fit with the fixing rod, so that the unlocking bulge on the fixing rod can pass through the limiting hole on the shell and can be driven by the shell to rotate to unlock;
the code reading module comprises a code reading coil, a code reading circuit and a module shell, wherein the code reading coil and the code reading circuit are arranged in the module shell, the code reading coil is used for generating code reading electromagnetic waves, and the code reading circuit is used for reading codes and outputting code reading signals;
the insulating ring is arranged between the rotary rod and the code reading module, the insulating ring is sleeved on the rotary rod, and the code reading module is sleeved on the insulating ring.
2. The computer key of claim 1, wherein: the center of the top end of the fixed rod is provided with a hollow cavity, and a magnetic column is inserted into the hollow cavity.
3. A computer key as defined in claim 1 or 2, wherein: the insulating ring comprises a ring body and a functional material in the ring body, wherein the ring body is made of a high-molecular insulating material, and the functional material is a high-magnetic-permeability material.
4. The computer key of claim 3, wherein: the high-permeability material is a ferrite material.
5. A computer key as defined in claim 1 or 2, wherein: and the projection of the code reading coil in the module shell on the insulating ring is positioned in the middle of the insulating ring.
6. A computer key as defined in claim 1 or 2, wherein: the fixing rod is made of a non-magnetic conductive material and has preset strength and hardness.
7. A computer key as defined in claim 1 or 2, wherein: the top end of the fixed rod and the unlocking protrusion and the locking protrusion on the top end of the rotary rod are used for being matched with a lockset corresponding to the computer key to unlock and lock respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567053.4A CN112233279B (en) | 2019-06-27 | 2019-06-27 | Computer key for transformer substation anti-error safety system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567053.4A CN112233279B (en) | 2019-06-27 | 2019-06-27 | Computer key for transformer substation anti-error safety system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112233279A true CN112233279A (en) | 2021-01-15 |
| CN112233279B CN112233279B (en) | 2022-06-28 |
Family
ID=74110902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910567053.4A Active CN112233279B (en) | 2019-06-27 | 2019-06-27 | Computer key for transformer substation anti-error safety system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112233279B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0324096A2 (en) * | 1988-01-09 | 1989-07-19 | BKS GmbH | Locking cylinder, especially a cylinder for a mortise lock |
| JP2008252462A (en) * | 2007-03-30 | 2008-10-16 | Mitsubishi Materials Corp | Keyless entry system |
| JP2010209525A (en) * | 2009-03-06 | 2010-09-24 | Sumida Corporation | Door handle |
| CN102290277A (en) * | 2011-08-09 | 2011-12-21 | 珠海华伟电气科技股份有限公司 | unlocking mechanism of single-handle computer key |
| US20130241694A1 (en) * | 2012-03-16 | 2013-09-19 | Secureall Corporation | Non-contact electronic door locks having specialized radio frequency beam formation |
| CN204531692U (en) * | 2015-02-13 | 2015-08-05 | 成都泰然科技有限公司 | Blade electronic lock and electron key |
| CN204883889U (en) * | 2015-08-06 | 2015-12-16 | 华电北瑞电气(北京)有限公司 | Lock system that establishes by cable is tested in high tension switchgear non -contact |
| CN105464480A (en) * | 2014-09-05 | 2016-04-06 | 上海圣享科技股份有限公司 | Electromagnetic lock, lock cylinder of electromagnetic lock and unlocking method for electromagnetic lock |
| CN106050001A (en) * | 2016-06-03 | 2016-10-26 | 珠海优特电力科技股份有限公司 | Magnetic-control lock, unlocking device and lock cylinder |
| CN206917419U (en) * | 2017-06-02 | 2018-01-23 | 珠海优特电力科技股份有限公司 | Unlocking mechanism and there is its computer key |
| CN108868330A (en) * | 2018-10-17 | 2018-11-23 | 南京南瑞继保电气有限公司 | Computer key unlocking mechanism |
-
2019
- 2019-06-27 CN CN201910567053.4A patent/CN112233279B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0324096A2 (en) * | 1988-01-09 | 1989-07-19 | BKS GmbH | Locking cylinder, especially a cylinder for a mortise lock |
| JP2008252462A (en) * | 2007-03-30 | 2008-10-16 | Mitsubishi Materials Corp | Keyless entry system |
| JP2010209525A (en) * | 2009-03-06 | 2010-09-24 | Sumida Corporation | Door handle |
| CN102290277A (en) * | 2011-08-09 | 2011-12-21 | 珠海华伟电气科技股份有限公司 | unlocking mechanism of single-handle computer key |
| US20130241694A1 (en) * | 2012-03-16 | 2013-09-19 | Secureall Corporation | Non-contact electronic door locks having specialized radio frequency beam formation |
| CN105464480A (en) * | 2014-09-05 | 2016-04-06 | 上海圣享科技股份有限公司 | Electromagnetic lock, lock cylinder of electromagnetic lock and unlocking method for electromagnetic lock |
| CN204531692U (en) * | 2015-02-13 | 2015-08-05 | 成都泰然科技有限公司 | Blade electronic lock and electron key |
| CN204883889U (en) * | 2015-08-06 | 2015-12-16 | 华电北瑞电气(北京)有限公司 | Lock system that establishes by cable is tested in high tension switchgear non -contact |
| CN106050001A (en) * | 2016-06-03 | 2016-10-26 | 珠海优特电力科技股份有限公司 | Magnetic-control lock, unlocking device and lock cylinder |
| CN206917419U (en) * | 2017-06-02 | 2018-01-23 | 珠海优特电力科技股份有限公司 | Unlocking mechanism and there is its computer key |
| CN108868330A (en) * | 2018-10-17 | 2018-11-23 | 南京南瑞继保电气有限公司 | Computer key unlocking mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112233279B (en) | 2022-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0494471B1 (en) | Locks | |
| EP2082378B1 (en) | Electronic lock and key assembly | |
| US5423198A (en) | Dual control mode lock | |
| EP0715045B1 (en) | Lock having inductive key detection and method of construction | |
| US6523377B1 (en) | Blocking device for a cylinder lock | |
| US5469727A (en) | Electronic lock cylinder | |
| CN112233279B (en) | Computer key for transformer substation anti-error safety system | |
| CN105574959B (en) | Contactless smart lock core, lock management system and its method of work | |
| CN102619403B (en) | Mini mechanical magnetic key operated lock | |
| KR101016903B1 (en) | Cylindirical electronic locking apparatus | |
| CN211473707U (en) | Passive intelligent plane lock with double-locking detection part | |
| CN106050006B (en) | A kind of theftproof lock spacing with electromagnet | |
| CN103774924A (en) | Anti-theft lock core and unlocking method | |
| CN105625824A (en) | Bidirectional anti-theft lock | |
| CN207110703U (en) | The lock core and lockset of computer key and its adaptation | |
| CN105735750B (en) | A kind of theftproof lock that rotation cam is fixed with movable jaw | |
| CN211173492U (en) | Lock cylinder, lock and lock system | |
| CN201714159U (en) | Novel anti-theft lock core | |
| CN102235120B (en) | Magnetic fluid coded lock | |
| EP3299554B1 (en) | Mechatronic cylinder lock | |
| KR20090080410A (en) | Smart key system and control method thereof | |
| CN206309148U (en) | Automatic locking non-idling electronic lock | |
| CN206158384U (en) | Rectangle lock | |
| CN112610077A (en) | Wireless radio frequency identification mechanical lock | |
| CN104680632B (en) | Lock cylinder with intelligent unlocking control function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |