CN107355139B - Electronic lock and access control system applying same - Google Patents
Electronic lock and access control system applying same Download PDFInfo
- Publication number
- CN107355139B CN107355139B CN201710798245.7A CN201710798245A CN107355139B CN 107355139 B CN107355139 B CN 107355139B CN 201710798245 A CN201710798245 A CN 201710798245A CN 107355139 B CN107355139 B CN 107355139B
- Authority
- CN
- China
- Prior art keywords
- lock
- self
- electromagnet
- lock tongue
- door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening 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
- E05B47/02—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means
- E05B47/023—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means the bolt moving pivotally or rotatively
Abstract
The invention discloses an electronic lock and an access control system using the same, wherein the electronic lock is arranged at the edge of a door body through a lock box, an electromagnet, a self-locking mechanism and a lock tongue are arranged in the lock box, the electromagnet is arranged at one side of the lock tongue, the other side of the lock tongue is correspondingly provided with a door frame, one end of the self-locking mechanism is connected with one end of the lock tongue, the other end of the self-locking mechanism is arranged in the lock box, and the electromagnet can do reciprocating motion relative to the lock tongue. When the door is opened, the electromagnet is controlled by power to move for a certain distance in the direction away from the lock tongue, so that the limit on the lock tongue is removed, and when the door body is pulled, the door frame forces the lock tongue to rotate around the first rotating shaft for a certain angle in the positive direction, so that the door can be opened; simultaneously, the self-locking mechanism rotates out of the lock box along with the opening angle of the door. When the door is closed, the door frame firstly touches the self-locking mechanism, the front end of the self-locking mechanism is rotated to prop against the tail part of the lock tongue, and the lock tongue is rotated through the first rotating shaft to finish the door closing action. The invention has simple structure, strong universality, safety and convenience.
Description
Technical Field
The invention relates to the technical field of locks, in particular to an electronic lock and an access control system using the same.
Background
As early as 5000 years ago, locks were produced by the human society private system. The poetry is in mind that you are locked, people are in knowledge, and the lockset is an indispensable tool in the life and work safety and privacy protection of people. With the development of technology in recent years, a great deal of research is being conducted on the structure and mechanism of locks, and various locks and access control systems are layered endlessly.
At present, locks sold in the market are mainly divided into a mechanical lock and an electronic lock, all parts in the mechanical lock are connected mechanically, the application range in life is wide, the locks do not need to be electrified, keys are easy to copy, and the safety is poor. The unlocking device of the electronic lock is controlled by electric power and mainly comprises locks with higher and higher security such as fingerprint locks, coded locks, biological identification technology locks and the like. The mechanical parts of the electronic lock in the prior art are mainly divided into a motor mechanism and an electromagnet mechanism. Most of motor mechanisms drive the lock mechanism to move through gear set deceleration, and the structure is complex and inconvenient; the electromagnet releases the control point through magnetic force action to open the door. The existing electronic lock cannot be used generally, has a complex structure and can only be used for professional safes or lockers.
Disclosure of Invention
According to one aspect of the invention, there is provided an electronic lock, mounted on the edge of a door body through a lock box, wherein an electromagnet, a self-locking mechanism and a lock tongue are arranged in the lock box, the electromagnet is arranged on one side of the lock tongue, the other side of the lock tongue is correspondingly provided with a door frame, one end of the self-locking mechanism is connected with one end of the lock tongue, the other end of the self-locking plate is arranged in the lock box, the electromagnet can do reciprocating motion relative to the lock tongue,
when the one end of electro-magnet is kept away from the spring bolt, the spring bolt is with can carrying out free rotation around first pivot, and when the spring bolt rotated around first pivot positive direction and is unlocked, the auto-lock board can rotate around the second pivot and stretch out from the lock box.
The invention has the advantages that the electromagnet is propped against the lock tongue when being stressed, so that the sufficient strength of the lock tongue is ensured, the safety and the firmness of the lock are ensured, when the conductive coil is electrified, the electromagnet generates magnetic force, the electromagnet is controlled by the magnetic force to move a certain distance away from the lock tongue, the limitation of the lock tongue is removed, and when the door body is pulled, the door frame forces the lock tongue to rotate a certain angle around the first rotating shaft in the positive direction, so that the door can be opened; when the lock tongue rotates to a certain angle to open the door, the self-locking mechanism rotates out of the lock box along with the opening angle of the door, and the door opening action is completed. When the door is closed, the door frame firstly touches the self-locking mechanism, the front end of the self-locking mechanism is rotated to prop against the tail part of the lock tongue, and the lock tongue is rotated through the first rotating shaft to finish the door closing action. The electronic lock has simple structure and strong universality, can be used for various doors such as house doors, cabinet doors and drawers, and is safe and convenient.
In some embodiments, the electronic lock further comprises a first torsion spring, one end of the first torsion spring is fixed on the lock box, and the other end of the first torsion spring abuts against the lock tongue. The lock box has the advantages that the first torsion spring is a positioning torsion spring, when the door is opened, the door frame extrudes the lock tongue to rotate for a certain angle, the lock tongue rotates to compress and drive the first torsion spring to rotate, and as one end of the first torsion spring is fixed on the lock box, when the other end of the first torsion spring moves along with the lock tongue, the first torsion spring can push the lock tongue to an unlocking state through elasticity, so that the lock box is simple and convenient; after the door is closed in place, the first torsion spring pushes the lock tongue to a state to be opened by elasticity, and the electromagnet is powered off to tightly prop against the lock tongue again, so that the electronic lock is closed.
In some embodiments, the self-locking mechanism is a self-locking plate. The self-locking mechanism has the beneficial effects that the self-locking mechanism can be a self-locking plate, and can also be other parts or elastic parts capable of realizing the same function, so that the flexibility of the whole device is improved.
In some embodiments, the self-locking plate is detachably connected with the locking bolt, and the electronic lock further comprises a second torsion spring connected with one end of the self-locking plate. The lock box has the advantages that when the door is opened, the lock tongue enters the lock box, and the second torsion spring drives the self-locking plate to rotate out of the lock box along with the increase of the door opening angle; when the door is closed, the door frame drives the self-locking plate to rotate, the self-locking plate is pushed into the lock box, and the second torsion spring is restored to a to-be-unlocked state.
In some embodiments, the self-locking plate is integrally formed with the locking bolt. The self-locking plate has the advantages that the self-locking plate is firmly connected with the lock tongue, the lock tongue is not easy to loosen, and the action continuity of the lock tongue and the self-locking plate is strong.
In some embodiments, the lock tongue is provided with a clamping groove, the clamping groove is matched with one end of the electromagnet, and when the electromagnet butts against the clamping groove, the lock tongue can be prevented from rotating along the positive direction. The clamping groove is formed, when the electromagnet is stressed to be close to the lock tongue, the electromagnet can just abut against the clamping groove, so that the electromagnet and the lock tongue are tightly and firmly matched, and the locking groove is difficult to loosen and shift.
In some embodiments, an electromagnetic seat is arranged in the lock box, an induction coil is arranged in the electromagnetic seat, one end of the electromagnet extends into the electromagnetic seat, and the other end of the electromagnet is matched with the lock tongue. The electromagnetic door lock has the beneficial effects that magnetic force is generated after the induction coil is electrified, the electromagnet moves under the action of the magnetic force, unlocking and locking of the door are realized, the induction coil is arranged in the electromagnetic seat, simplicity and convenience are realized, the installation is easy, and the influence on other parts is prevented.
In some embodiments, the electromagnet is further sleeved with a spring, one end of the electromagnet is provided with a blocking piece, one end of the spring is connected with the electromagnetic seat, and the other end of the spring is connected with the blocking piece. The electromagnetic spring has the beneficial effects that the electromagnet can move relative to the electromagnetic seat and the lock tongue under the action of force, when the electromagnet moves towards the direction of the electromagnetic seat, pressure is generated on the spring through the blocking piece, the spring deformation generates reverse elasticity to the electromagnet, the induction coil is not electrified any more, the electromagnet loses the magnetic force action, and extends out of the electromagnetic seat under the action of the spring elasticity to move towards the direction of the lock tongue, so that the lock tongue is propped against, and the door is guaranteed not to be opened.
In some embodiments, the emergency toggle device further comprises an emergency toggle, one end of the emergency toggle is connected with the electromagnet, and the other end of the emergency toggle is matched with the toggle. The electric door lock has the advantages that when the power is off, the shifting piece is inserted into the driving hole of the emergency shifting knob, the shifting fork of the emergency knob drives the electromagnet to move by rotating the shifting piece, and the position of the electromagnet can be shifted, so that the electromagnet can tightly prop against the lock tongue or separate from the lock tongue, and the door lock and unlocking states are realized; the emergency toggle is arranged, so that the door can be still opened or closed by a key under the condition of no electricity, and emergency treatment is realized.
According to another aspect of the invention, an access control system is provided, comprising the electronic lock. The door control system has the beneficial effects that the door control system can be used for various doors such as drawers, rooms, cabinets and the like, can control the movement of the electromagnet in various modes such as fingerprints, passwords and irises, and is unlocked by combining a mechanical key, so that the door control system is convenient, simple in structure, easy to realize and greatly improves the safety of the door control system.
Drawings
FIG. 1 is a schematic diagram of an electronic lock according to an embodiment of the present invention;
FIG. 2 is a schematic view of the electronic lock of FIG. 1 from another perspective;
fig. 3 is a schematic structural diagram of the electronic lock shown in fig. 1 before unlocking;
fig. 4 is a schematic structural diagram of the electronic lock shown in fig. 1 after unlocking;
FIG. 5 is a schematic diagram of the position structures of the lock tongue and the first torsion spring of the electronic lock shown in FIG. 1 before unlocking;
fig. 6 is a schematic diagram of a position structure of a lock tongue and a first torsion spring of the electronic lock shown in fig. 1 after unlocking;
FIG. 7 is a schematic view of an electronic lock according to another embodiment of the present invention;
fig. 8 is a schematic structural diagram of the electronic lock shown in fig. 7 after unlocking;
FIG. 9 is a schematic diagram illustrating the position of the locking tongue and the first torsion spring of the electronic lock shown in FIG. 7 before unlocking;
FIG. 10 is a schematic diagram illustrating the position of the lock tongue and the first torsion spring of the electronic lock shown in FIG. 7 after unlocking;
fig. 11 is a schematic structural view of an emergency dial knob of the electronic lock of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Fig. 1-6 schematically show an electronic lock according to an embodiment of the invention. As shown in the figure, the device is mounted on the edge of the door body 1 through a lock box 3, 4 fixing holes 32 are formed in a lock box base 31, and the lock box 3 is fixed on the door body 1 through the fixing holes 32. The lock box 3 is internally provided with an electromagnet 5, a self-locking mechanism and a lock tongue 8, wherein the electromagnet 5 is arranged on one side of the lock tongue 8, and the other side of the lock tongue 8 is correspondingly provided with a door frame 2.
Wherein, still be equipped with electromagnetic seat 4 in the lock box 3, be equipped with induction coil in the electromagnetic seat 4, place induction coil in the electromagnetic seat 4, it is simple and convenient, easy to install, and prevent to cause the influence to other parts. One end of the electromagnet 5 stretches into the electromagnetic seat 4, the other end of the electromagnet 5 is matched with the lock tongue 8, so that magnetic force is generated after the induction coil is electrified, the electromagnet 5 moves under the action of the magnetic force, when the electromagnet is far away from the lock tongue 8, the lock tongue 8 loses the resisting action of the electromagnet 5, and the lock tongue can rotate around the first rotating shaft 81, so that the unlocking action of the door is realized. When the door body 1 is pulled, the door frame 2 forces the latch tongue 8 to rotate around the first rotation shaft 81 by a certain angle in the positive direction (counterclockwise direction in the drawing), and the door can be opened.
In order to further realize the control of the electromagnet 5 on the lock tongue 8, a spring 6 is sleeved on the electromagnet 5, one end of the electromagnet 5 is provided with a blocking piece 51, one end of the spring 6 is connected with the electromagnetic seat 4, and the other end of the spring 6 is connected with the blocking piece 51. The electromagnet 5 can move relative to the electromagnetic seat 4 and the lock tongue 8 under the action of force, when the electromagnet 5 moves towards the electromagnetic seat 4, pressure is generated to the spring 6 through the blocking piece 51, the deformation of the spring 6 generates reverse elasticity to the electromagnet 5, when the induction coil is powered off, the electromagnet 5 loses the magnetic force effect, stretches out of the electromagnetic seat 4 under the action of the elasticity of the spring 6, moves towards the lock tongue 8, and accordingly abuts against the lock tongue 8, and the lock tongue 8 is prevented from moving to ensure that the door is locked tightly.
In order to facilitate the matching of the electromagnet 5 and the lock tongue 8, a clamping groove 82 is formed in the lock tongue 8, the clamping groove 82 is matched with one end of the electromagnet 5, when the electromagnet 5 is stressed to be close to the lock tongue 8, the electromagnet 5 can be abutted into the clamping groove 82, so that the electromagnet 5 and the lock tongue 8 are matched tightly and firmly, the lock tongue 8 can be prevented from rotating, and loose displacement is not easy to occur.
One end of the lock tongue 8 is fixed in the lock box 3 through a first rotating shaft 81, and can rotate around the first rotating shaft 81, and the other end side surface of the lock tongue 8 is fan-shaped. The lock box 3 is internally provided with a first torsion spring 9, one end of the first torsion spring 9 is fixed on the inner wall of the lock box 3, namely, at a first pivot A, one side of the fan-shaped lock tongue 8 is fixedly propped against the other end of the first torsion spring 9, namely, at a second pivot B, and the other side of the fan-shaped lock tongue 8 is provided with a plane. When the electromagnet 5 props against the lock tongue 8, the lock tongue 8 cannot rotate, the plane on one side of the lock tongue 8 forms an included angle of about 90 degrees with the shell of the box of the lock tongue 8, and the plane is tightly attached to the side face of the door frame 2, so that the door is locked tightly through the blocking and limiting of the plane to the door frame 2. When the induction coil is electrified, the electromagnet 5 is separated from the lock tongue 8 to unlock, and the lock tongue 8 is brought into the lock box 3 under the action of the door frame 2. When the lock tongue 8 rotates around the first rotating shaft 81 in the anticlockwise direction to retract into the lock box 3, the lock tongue 8 drives the first torsion spring 9 to rotate through the second supporting point B, the position of the first supporting point A relative to the lock box 3 is unchanged, the state of the lock tongue 8 and the first torsion spring 9 is changed from the state shown in fig. 5 to the state shown in fig. 6, and the lock tongue 8 is kept in the lock box 3 through the tension of the first torsion spring 9. When the door is closed, the door frame 2 touches the self-locking mechanism to drive the lock tongue 8 to rotate clockwise to rotate out of the lock box 3, the lock tongue 8 drives the first torsion spring 9 to rotate through the second fulcrum B, the position of the first fulcrum A relative to the lock box 3 is unchanged, the lock tongue 8 and the first torsion spring 9 are changed from the state shown in fig. 6 to the state shown in fig. 5, and the lock tongue 8 is kept in the locking state shown in fig. 5 through the tension of the first torsion spring 9.
In this embodiment, the self-locking mechanism is the self-locking plate 7, and may be other components or elastic components capable of realizing the same function, so as to increase the flexibility of the whole device. One end of the self-locking plate 7 is detachably connected with one end of the lock tongue 8, the self-locking plate 7 is fixed on the second rotating shaft 71 and props against the second torsion spring 10, and the other end of the self-locking plate 7 is arranged in the lock box 3 beyond the first rotating shaft 81 and is provided with an arc-shaped surface corresponding to the first rotating shaft 81. When the door is opened, the lock tongue 8 is driven by the door frame 2 to rotate anticlockwise and retract into the lock box 3, the lock box 3 drives the self-locking plate 7 to rotate anticlockwise around the second rotating shaft 71, and as the door opening angle becomes larger, the second torsion spring 10 drives the self-locking plate 7 to extend out of the lock box 3; i.e. the door opening is completed and the locking tongue 8 is retracted into the lock box 3, and the self-locking plate 7 is carried out of the lock box 3.
When the door needs to be closed, the door body 1 is rotated and pushed to the door frame 2 anticlockwise, the door frame 2 touches the self-locking plate 7, the self-locking plate 7 rotates around the second rotating shaft 71 to retract the lock box 3 under the pressure of the door frame 2, the other end of the self-locking plate 7 is recovered through the pressure of the second torsion spring 10 and drives the lock tongue 8 to rotate, the fan-shaped structure of the lock tongue 8 is brought out of the lock box 3, the plane on one side of the lock box 3 is attached to the side face of the door frame 2 again, and meanwhile, the electromagnet 5 after power failure moves towards the lock tongue 8 under the action of the spring 6 and tightly props against the lock tongue 8 to tightly lock the door.
Another embodiment of the present invention shown in fig. 7-10 is different from the previous embodiment in that in this embodiment, the locking tongue 8 and the self-locking plate 7 are integrally formed, and the two are connected more firmly, and both rotate around the first rotation shaft 81. When the door is opened, the lock tongue 8 rotates around the first rotating shaft 81 to retract into the lock box 3, and meanwhile, the lock tongue 8 brings the self-locking plate 7 out of the lock box 3. When the door is closed, the door frame 2 drives the self-locking plate 7 to rotate around the first rotating shaft 81, the self-locking plate 7 is retracted into the lock box 3, meanwhile, the lock tongue 8 is rotated out of the lock box 3, and the action continuity of the lock tongue 8 and the self-locking plate 7 is strong.
Fig. 9 is a positional relationship between the lock tongue 8 and the first torsion spring 9 in the electronic lock of this embodiment.
Fig. 10 is a positional relationship between the lock tongue 8 and the first torsion spring 9 when the electronic lock of this embodiment is opened.
As shown in fig. 11, in order to prevent the situation that the door is difficult to open when power is off, the electronic lock of the invention is further provided with an emergency knob 11, one end of the emergency knob 11 is connected with the electromagnet 5 through a shifting fork 111, and the other end of the emergency knob 11 is provided with a driving hole 112 and is matched with a shifting sheet. The shifting sheet is a key which is usually described, the emergency shifting knob 11 is driven to rotate by rotating the shifting sheet, and the shifting fork 111 can shift the position of the electromagnet 5, so that the electromagnet 5 is tightly propped against the lock tongue 8 or separated from the lock tongue 8, and the door locking and unlocking states are realized; the emergency toggle is arranged, so that under the condition of power failure, the door can still be opened or closed by the key, and emergency treatment is realized.
The access control system utilizing the electronic lock can be used for various doors of drawers, rooms, cabinets, and the like, has simple structure, is easy to realize, has strong universality, can realize instant power-on unlocking in various modes such as fingerprint, password, iris, and the like, and controls the electromagnet 5 to move; the emergency spare key is arranged, so that the lock can be opened by using the spare key under the emergency power failure condition, the safety of the access control system is improved greatly, and convenience is brought.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (9)
1. The electronic lock is arranged at the edge of the door body (1) through the lock box (3), and is characterized in that an electromagnet (5), a self-locking mechanism and a lock tongue (8) are arranged in the lock box (3), the electromagnet (5) is arranged at one side of the lock tongue (8), one end of the self-locking mechanism is connected with one end of the lock tongue (8), the other end of the self-locking mechanism is arranged in the lock box (3), the electromagnet (5) can do reciprocating motion relative to the lock tongue (8),
when one end of the electromagnet (5) is far away from the lock tongue (8), the lock tongue (8) can rotate freely around the first rotating shaft (81), and when the lock tongue (8) rotates around the first rotating shaft (81) to the positive direction, the self-locking mechanism can rotate to rotate out of the lock box (3);
the self-locking mechanism is a self-locking plate (7), the electronic lock further comprises a second torsion spring (10), and the second torsion spring (10) is connected with one end of the self-locking plate (7);
when the door is opened, the lock tongue enters the lock box, and the second torsion spring drives the self-locking plate to rotate out of the lock box along with the increase of the door opening angle; when the door is closed, the door frame drives the self-locking plate to rotate, the self-locking plate is pushed into the lock box, and the second torsion spring is restored to a to-be-unlocked state.
2. The electronic lock according to claim 1, further comprising a first torsion spring (9), wherein one end of the first torsion spring (9) is fixed on the lock box (3), and the other end of the first torsion spring (9) is abutted against the lock tongue (8).
3. An electronic lock according to claim 1, characterized in that the self-locking plate (7) is detachably connected to the locking tongue (8).
4. An electronic lock according to claim 1, characterized in that the self-locking plate (7) is integrally formed with the locking tongue (8).
5. The electronic lock according to claim 1, wherein the lock tongue (8) is provided with a clamping groove (82), the clamping groove (82) is matched with one end of the electromagnet (5), and when the electromagnet (5) abuts against the clamping groove (82), the lock tongue (8) can be prevented from rotating in the positive direction.
6. The electronic lock according to claim 1, wherein an electromagnetic seat (4) is arranged in the lock box (3), an induction coil is arranged in the electromagnetic seat (4), one end of the electromagnet (5) stretches into the electromagnetic seat (4), and the other end of the electromagnet (5) is matched with the lock tongue (8).
7. The electronic lock according to claim 6, wherein the electromagnet (5) is further sleeved with a spring (6), one end of the electromagnet (5) is provided with a blocking member (51), one end of the spring (6) is connected with the electromagnetic seat (4), and the other end of the spring (6) is connected with the blocking member (51).
8. The electronic lock according to any one of claims 1-7, further comprising an emergency dial (11), wherein one end of the emergency dial (11) is connected to the electromagnet (5), and the other end of the emergency dial is provided with a dial sheet.
9. An access control system comprising the electronic lock of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710798245.7A CN107355139B (en) | 2017-09-05 | 2017-09-05 | Electronic lock and access control system applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710798245.7A CN107355139B (en) | 2017-09-05 | 2017-09-05 | Electronic lock and access control system applying same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107355139A CN107355139A (en) | 2017-11-17 |
| CN107355139B true CN107355139B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710798245.7A Active CN107355139B (en) | 2017-09-05 | 2017-09-05 | Electronic lock and access control system applying same |
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| CN (1) | CN107355139B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412317B (en) * | 2018-04-03 | 2023-10-17 | 元壤实业（上海）有限公司 | Power-down protection lockset device |
| CN108652258B (en) * | 2018-06-15 | 2023-12-19 | 重庆光大网络技术有限公司 | House archive information management system |
| CN112726529B (en) * | 2020-12-29 | 2022-03-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Concrete plug with self-locking function |
| CN113313877B (en) * | 2021-04-28 | 2022-07-19 | 国网福建省电力有限公司 | Fault plan processing method and system based on automatic operation and maintenance platform |
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| FR2093206A5 (en) * | 1970-06-05 | 1972-01-28 | Saunier Duval | |
| CN2921206Y (en) * | 2006-06-09 | 2007-07-11 | 吴斐 | Automatic turning spring bolt device |
| CN204552329U (en) * | 2015-03-19 | 2015-08-12 | 刘振林 | A kind of shockproof electromagnetic lock |
| CN106368526A (en) * | 2015-07-24 | 2017-02-01 | 杭州双华科技有限公司 | Spring bolt overturning self-locking device |
| CN207228814U (en) * | 2017-09-05 | 2018-04-13 | 佛山市奇点安防科技有限公司 | Electronic lock and apply its access control system |
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2017
- 2017-09-05 CN CN201710798245.7A patent/CN107355139B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2093206A5 (en) * | 1970-06-05 | 1972-01-28 | Saunier Duval | |
| CN2921206Y (en) * | 2006-06-09 | 2007-07-11 | 吴斐 | Automatic turning spring bolt device |
| CN204552329U (en) * | 2015-03-19 | 2015-08-12 | 刘振林 | A kind of shockproof electromagnetic lock |
| CN106368526A (en) * | 2015-07-24 | 2017-02-01 | 杭州双华科技有限公司 | Spring bolt overturning self-locking device |
| CN207228814U (en) * | 2017-09-05 | 2018-04-13 | 佛山市奇点安防科技有限公司 | Electronic lock and apply its access control system |
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| CN107355139A (en) | 2017-11-17 |
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