CN108425558B - Electronic lock - Google Patents
Electronic lock Download PDFInfo
- Publication number
- CN108425558B CN108425558B CN201810315499.3A CN201810315499A CN108425558B CN 108425558 B CN108425558 B CN 108425558B CN 201810315499 A CN201810315499 A CN 201810315499A CN 108425558 B CN108425558 B CN 108425558B
- Authority
- CN
- China
- Prior art keywords
- contact
- shell
- cavity
- hole
- base body
- 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.)
- Active
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- 230000003111 delayed effect Effects 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims description 14
- 239000007769 metal material Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000001934 delay Effects 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
- E05B47/0003—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B45/00—Alarm locks
- E05B45/06—Electric alarm locks
- E05B45/08—Electric alarm locks with contact making inside the lock or in the striking plate
- E05B45/10—Electric alarm locks with contact making inside the lock or in the striking plate by introducing the key or another object
-
- 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
- E05B2047/0007—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets with two or more electromagnets
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Burglar Alarm Systems (AREA)
- Lock And Its Accessories (AREA)
Abstract
The electronic lock head comprises a lock shell, a lock cylinder, a circuit board, a first contact assembly, a second contact assembly, a screw, an electromagnet, a magnet and a pin body, wherein the first contact assembly is arranged in a mounting hole, and the second contact assembly is arranged in a contact hole; the first contact assembly is in contact fit with the second contact assembly, the second contact assembly is communicated with the circuit board, and a screw penetrates through the circuit board to be screwed with the base body and connects the circuit board with the base body together and electrically connects the circuit board with the base body; the electromagnet is arranged in the electromagnet cavity, the pin body is in sliding fit with the pin body cavity, the magnet at the lower end is matched with the electromagnet, and the electromagnet is electrically connected with the circuit board. After a key or other metal objects are inserted into the key hole, the pin body locks the lock cylinder and the lock shell together, alarms, and delays the set time; when a key or other metal objects are inserted into the key hole and then reciprocate, the delayed time is accumulated again, so that the anti-theft device is effectively used for preventing theft, and when no power supply exists or after the delay is finished, the key can be unlocked, and the use is convenient.
Description
Technical Field
The invention relates to an electronic lock, in particular to an electronic lock head of the electronic lock.
Background
At present, the prior art, an electronic lock, including lock face-piece, signal recognition device, handle, square shaft, an electronic lock and spring bolt subassembly, square shaft and tapered end are driven alone respectively, spring bolt subassembly. The problems are: the lock head can not prevent theft, prevents other metal objects except keys from unlocking, and has poor theft-proof performance.
Disclosure of Invention
The purpose of the invention is that: the electronic lock has the features of unlocking and alarming metal object, locking lock core and casing and preventing theft.
The invention is realized in the following way: an electronic lock head comprises a lock shell, a lock cylinder and a circuit board, wherein the lock shell comprises a base body and a lock core cavity along the length direction of the base body; the lock core is provided with a key hole; the lock core is in rotary fit with the lock core cavity, and the circuit board is fixed on the substrate; the special feature is that: the device also comprises a first contact component, a second contact component, a screw, an electromagnet, a magnet and a pin body,
the lock cylinder is provided with radial mounting holes and pin holes, and the mounting holes are communicated with the key holes;
the base body of the lock shell is provided with a contact hole and a locking device cavity, the locking device cavity comprises a pin cavity and an electromagnet cavity, and the diameter of the pin cavity is smaller than that of the electromagnet cavity; the contact hole is communicated with the lock cylinder cavity;
the magnet is inlaid in the lower end of the pin body; the upper end of the electromagnet is provided with an accommodating cavity with an upper opening, and the pin body is matched with the accommodating cavity;
the first contact assembly is arranged in the mounting hole, the second contact assembly is arranged in the contact hole, the mounting hole corresponds to the contact hole, and the pin hole corresponds to the pin body cavity; the first contact assembly is in contact fit with the second contact assembly, the second contact assembly is communicated with the circuit board, a screw penetrates through the circuit board to be screwed with the base body and connect the circuit board with the base body, and the screw electrically connects the base body with the circuit board; the electromagnet is arranged in the electromagnet cavity, the pin body is in sliding fit with the pin body cavity, the magnet at the lower end is matched with the electromagnet, and the electromagnet is electrically connected with the circuit board;
after the key or other metal object is inserted into the key hole, the circuit board, the second contact assembly, the first contact assembly, the key or other metal object, the lock cylinder, the lock shell and the screw are electrically connected in series; the pin body stretches into the pin hole, and after a set time is delayed, the pin body resets; each time a key or other metal object moves along the length direction of the key hole, the delay time is recalculated;
after the key is inserted into the key hole, the first contact assembly, the key or the metal object, the lock cylinder, the lock shell and the screw are electrically connected in series; the pin body stretches into the pin hole, and after a set time is delayed, the key is turned to unlock;
in a static state, the pin body is positioned in the pin body cavity.
The electronic lock head is characterized in that: the first contact assembly comprises a first contact, a first pressure spring, a first contact shell and a first contact insulation sleeve, wherein the first contact and the first contact shell are made of conductive metal materials;
the first contact comprises a first base body part and a first contact part, and the diameter of the first contact part is smaller than that of the first base body part;
the first contact shell is provided with an upper opening, and a receiving opening is arranged on the upper opening; the first contact insulating sleeve has an upper opening;
the first pressure spring is arranged at the bottom of the first contact shell, the first base body part is positioned in the first contact shell and compresses the first pressure spring, the first contact part penetrates through the closing-in part and stretches out, the first base body part is matched with the closing-in part to stop, and the first contact part is in sliding fit with the closing-in part; the first contact shell is arranged in the first contact insulation sleeve and is fixedly connected together; the first contact insulating sleeve is fixed in the mounting hole; the first contact part stretches into the key hole;
the second contact assembly comprises a second contact, a second pressure spring, a second contact shell and a second contact insulation sleeve, and the second contact shell are made of conductive metal materials;
the second contact comprises a second base body part and a second contact part, and the diameter of the second contact part is smaller than that of the second base body part;
the second contact shell is provided with an upper opening, and a receiving opening is arranged on the upper opening; the second contact insulating sleeve is provided with an upper opening;
the second pressure spring is arranged in the second contact shell, the second base body part is positioned in the second contact shell to press the second pressure spring, the second base body part is matched with the closing-in part to stop, and the second contact part passes through the closing-in part to extend and be in sliding fit; the second contact shell is arranged in the second contact insulation sleeve, and an electrode arranged on the second contact shell penetrates through a bottom plate of the second contact insulation sleeve to extend out and is connected with the circuit board; the second contact is sleeved in the contact hole in an insulating manner;
the second contact portion is in contact engagement and electrical connection with the bottom of the first contact housing.
The electronic lock head is characterized in that: the base body of the lock shell is provided with a fixing seat of the circuit board, and the electromagnet cavity and the contact hole are communicated with the fixing seat.
The electronic lock head of the electronic lock unlocked by the metal object is characterized in that: the lower end of the pin body is provided with a blind hole with a lower opening, and the magnet is fixed in the blind hole.
The electronic lock head of the electronic lock unlocked by the metal object is characterized in that: the first contact, the first contact housing, the second contact, and the second contact housing are made of copper material.
The invention relates to an electronic lock head of an electronic lock unlocked by a metal object, which adopts the structure that a key or other metal objects are inserted into a key hole, a pin body locks a lock cylinder and a lock shell together, alarms and delays the set time; when a key or other metal objects are inserted into the key hole and then reciprocate, the delayed time is accumulated again, so that the anti-theft device is effectively used for preventing theft, and when no power supply exists or after the delay is finished, the key can be unlocked, and the use is convenient.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is one of the perspective views of the prior art.
Fig. 4 is a second perspective view of the prior art.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, an electronic lock head comprises a lock shell 1, a lock cylinder 2, a ball spring assembly (not shown in the figure) matched with the lock cylinder and the lock shell, and a circuit board 3, wherein the lock shell 1 comprises a base body 11 and a lock cylinder cavity 12 along the length direction of the base body; the lock core 2 is provided with a key hole 21; the lock core 2 is matched with the lock core cavity 12 in a rotating way, and the circuit board 3 is fixed on the base body 11. Further comprises a first contact assembly 4, a second contact assembly 5, a screw 6, an electromagnet 71, a magnet 72 and a pin 73,
the lock cylinder 2 is provided with radial mounting holes 22 and pin holes 23, and the mounting holes 22 are communicated with the key holes 21;
the base body 11 of the lock shell 1 is provided with a contact hole 13 and a locking device cavity 14, the locking device cavity comprises a pin cavity 141 and an electromagnet cavity 142, and the diameter of the pin cavity 141 is smaller than that of the electromagnet cavity 142; the contact hole 13 is communicated with the lock core cavity 12;
the magnet 72 is embedded in the lower end of the pin body 73; the upper end of the electromagnet 71 is provided with an accommodating cavity 711 with an upper opening, and the pin body 73 is matched with the accommodating cavity 711; in the static state, the lower end of the pin body 73 is positioned in the accommodating cavity 711, and the upper end of the pin body 73 is positioned in the pin body cavity 141; after the electromagnet is electrified, the pin body 73 moves upwards and stretches into the pin hole 23;
the first contact assembly 4 is arranged in the mounting hole 22, the second contact assembly 5 is arranged in the contact hole 13, the mounting hole 22 corresponds to the contact hole 13, and the pin hole 23 corresponds to the pin body cavity 141; the first contact assembly 4 and the second contact assembly 5 are in contact fit, the second contact assembly 5 is communicated with the circuit board 5, the screw 6 penetrates through the circuit board 3 to be screwed with the base body 11 and connects the circuit board 3 with the base body 11, and the screw 6 electrically connects the base body 11 with the circuit board 3; the electromagnet 71 is arranged in the electromagnet cavity 142, the pin body 73 is in sliding fit with the pin body cavity 141, the magnet 72 at the lower end is matched with the electromagnet 71, and the electromagnet 71 is electrically connected with the circuit board 3;
the lower end of the pin body 73 is provided with a blind hole with a lower opening, and the magnet 72 is fixed in the blind hole.
After the key or other metal object is inserted into the key hole 21, the circuit board 3, the second contact assembly 5, the first contact assembly 4, the key or other metal object, the lock cylinder 2, the lock shell 3 and the screw 4 are electrically connected in series; the alarm is given, the electromagnet 71 acts, the pin body 73 extends upwards into the pin hole 23, the lock shell 1 and the lock cylinder 2 are locked together, and after a set time delay, the pin body 73 is reset. If the delay time is set to be 20 minutes, after 20 minutes, the alarm is canceled, and the pin body 73 returns; after the delay time is exceeded, the lock core 2 can be rotated to unlock by rotating the key;
each time a key or other metal object moves along the length of the keyhole 21, the delay time is recalculated;
after the key is inserted into the key hole 21, the circuit board 3, the second contact assembly 5, the first contact assembly 4, the key or metal object, the lock cylinder 2, the lock shell 3 and the screw 6 are electrically connected in series; the pin body 73 stretches into the pin hole 23, alarms, and rotates the key to unlock after delaying for a set time;
in rest, pin body 73 is positioned within pin body cavity 141.
The first contact assembly 4 includes a first contact 41, a first compression spring 42, a first contact housing 43 and a first contact insulation sleeve 44, the first contact 41 and the first contact housing 42 being made of an electrically conductive metal material, which may be made of copper or aluminum material;
the first contact 41 includes a first base portion 411 and a first contact portion 412, the diameter of the first contact portion 412 being smaller than the diameter of the first base portion 411;
the first contact housing 43 has an upper opening provided with a receiving portion 431; the first contact insulating sleeve 44 has an upper opening;
the first pressure spring 42 is arranged at the bottom of the first contact shell 43, the first base part 411 is positioned in the first contact shell 43 and compresses the first pressure spring 42, the first contact part 412 extends out through the receiving part 431, the first base part 411 is matched with the receiving part 431 for stopping, and the first contact part 411 is in sliding fit with the receiving part 431; the first contact housing 43 is disposed within the first contact insulating sleeve 44 and fixedly connected together; the first contact insulating sleeve 44 is fixed in the mounting hole 22; the first contact 411 extends into the key hole 21;
the second contact assembly 5 includes a second contact 51, a second compression spring 52, a second contact housing 53, a second contact insulation sleeve 54, the second contact 51 and the second contact housing 53 being made of an electrically conductive metallic material; may be made of copper or aluminum materials;
the second contact 51 includes a second base portion 511 and a second contact portion 512, the diameter of the second contact portion 512 being smaller than the diameter of the second base portion 511;
the second contact housing 53 has an upper opening provided with a receiving portion 531; the second contact insulating sleeve 54 has an upper opening;
the second pressure spring 52 is arranged in the second contact shell 53, the second base body portion 511 is positioned in the second contact shell 53 to compress the second pressure spring 52 and is matched with the receiving portion 531 to stop, and the second contact portion 512 extends out through the receiving portion 531 and is in sliding fit; the second contact shell 53 is arranged in the second contact insulation sleeve 54, and an electrode arranged on the second contact shell 53 extends out through a bottom plate of the second contact insulation sleeve 54 and is connected with the circuit board 3; the second contact insulating sleeve 54 is arranged in the contact hole 13;
the second contact portion 512 is in contact engagement and electrically connected with the bottom of the first contact housing 53.
The base body 11 of the lock shell 1 is provided with a fixing seat of a circuit board, and the electromagnet cavity 14 and the contact hole 13 are communicated with the fixing seat.
When the electronic lock is used, as shown in fig. 3 and 4, a face shell 8 of the electronic lock, an electronic identification device 81 arranged on the face shell 8, a handle 82, a square shaft 821, an electromagnet assembly (not shown in the figure) for locking the square shaft, an electronic lock head 83 and a lock tongue assembly 84 of the electronic lock, and a circuit board is connected with a control circuit board of the electronic identification device 81;
the electronic recognition device 81 may be a password input recognizer, a face recognition device, or a door card recognition device;
when unlocking, the electronic identification device 81 and the electromagnet assembly act, the handle 82 is rotated by hand, the handle 82 drives the square shaft 821, and the square shaft 821 drives the lock tongue assembly 84 to unlock;
when a key or metal foreign matter is inserted into the key hole 21 of an electronic lock head 83, the electronic lock head 83 alarms, and the pin body 73 stretches into the pin hole 23 of the lock cylinder 2 to pin the lock cylinder 2 and the lock shell together; and time-delay for a certain time;
when an electronic lock 83 has no power input or the delay alarm is completed, the key can be turned, the lock cylinder 2 rotates, and the lock tongue component 84 is driven to unlock. The electronic lock 83 of the present invention has an antitheft effect.
What has been described above is merely a preferred embodiment of the present invention. It should be noted that modifications and variations can be made by those skilled in the art without departing from the principles of the present invention, which is also considered as being within the scope of the present invention.
Claims (5)
1. An electronic lock head comprises a lock shell, a lock cylinder and a circuit board, wherein the lock shell comprises a base body and a lock core cavity along the length direction of the base body; the lock core is provided with a key hole; the lock core is in rotary fit with the lock core cavity, and the circuit board is fixed on the substrate; the method is characterized in that: the device also comprises a first contact component, a second contact component, a screw, an electromagnet, a magnet and a pin body,
the lock cylinder is provided with radial mounting holes and pin holes, and the mounting holes are communicated with the key holes;
the base body of the lock shell is provided with a contact hole and a locking device cavity, the locking device cavity comprises a pin cavity and an electromagnet cavity, and the diameter of the pin cavity is smaller than that of the electromagnet cavity; the contact hole is communicated with the lock cylinder cavity;
the magnet is inlaid in the lower end of the pin body; the upper end of the electromagnet is provided with an accommodating cavity with an upper opening, and the pin body is matched with the accommodating cavity;
the first contact assembly is arranged in the mounting hole, the second contact assembly is arranged in the contact hole, the mounting hole corresponds to the contact hole, and the pin hole corresponds to the pin body cavity; the first contact assembly is in contact fit with the second contact assembly, the second contact assembly is communicated with the circuit board, a screw penetrates through the circuit board to be screwed with the base body and connect the circuit board with the base body, and the screw electrically connects the base body with the circuit board; the electromagnet is arranged in the electromagnet cavity, the pin body is in sliding fit with the pin body cavity, the magnet at the lower end is matched with the electromagnet, and the electromagnet is electrically connected with the circuit board;
after a key or other metal object is inserted into the key hole, the circuit board, the second contact, the first contact assembly, the key or other metal object, the lock cylinder, the lock shell and the screw are electrically connected in series; the pin body stretches into the pin hole, and after a set time is delayed, the pin body resets; each time a key or other metal object moves along the length direction of the key hole, the delay time is recalculated;
after the delay time is set, turning a key to unlock;
in a static state, the pin body is positioned in the pin body cavity.
2. The electronic lock according to claim 1, wherein: the first contact assembly comprises a first contact, a first pressure spring, a first contact shell and a first contact insulation sleeve, wherein the first contact and the first contact shell are made of conductive metal materials;
the first contact comprises a first base body part and a first contact part, and the diameter of the first contact part is smaller than that of the first base body part;
the first contact shell is provided with an upper opening, and a receiving opening is arranged on the upper opening; the first contact insulating sleeve has an upper opening;
the first pressure spring is arranged at the bottom of the first contact shell, the first base body part is positioned in the first contact shell and compresses the first pressure spring, the first contact part penetrates through the closing-in part and stretches out, the first base body part is matched with the closing-in part to stop, and the first contact part is in sliding fit with the closing-in part; the first contact shell is arranged in the first contact insulation sleeve and is fixedly connected together; the first contact insulating sleeve is fixed in the mounting hole; the first contact part stretches into the key hole;
the second contact assembly comprises a second contact, a second pressure spring, a second contact shell and a second contact insulation sleeve, and the second contact shell are made of conductive metal materials;
the second contact comprises a second base body part and a second contact part, and the diameter of the second contact part is smaller than that of the second base body part;
the second contact shell is provided with an upper opening, and a receiving opening is arranged on the upper opening; the second contact insulating sleeve is provided with an upper opening;
the second pressure spring is arranged in the second contact shell, the second base body part is positioned in the second contact shell to press the second pressure spring, the second base body part is matched with the closing-in part to stop, and the second contact part passes through the closing-in part to extend and be in sliding fit; the second contact shell is arranged in the second contact insulation sleeve, and an electrode arranged on the second contact shell penetrates through a bottom plate of the second contact insulation sleeve to extend out and is connected with the circuit board; the second contact is sleeved in the contact hole in an insulating manner;
the second contact portion is in contact engagement and electrical connection with the bottom of the first contact housing.
3. The electronic lock according to claim 1, wherein: the base body of the lock shell is provided with a fixing seat of the circuit board, and the electromagnet cavity and the contact hole are communicated with the fixing seat.
4. The electronic lock according to claim 1, wherein: the lower end of the pin body is provided with a blind hole with a lower opening, and the magnet is fixed in the blind hole.
5. The electronic lock of claim 1, 2, 3 or 4, wherein: the first contact, the first contact housing, the second contact, and the second contact housing are made of copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810315499.3A CN108425558B (en) | 2018-04-10 | 2018-04-10 | Electronic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810315499.3A CN108425558B (en) | 2018-04-10 | 2018-04-10 | Electronic lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108425558A CN108425558A (en) | 2018-08-21 |
| CN108425558B true CN108425558B (en) | 2023-11-10 |
Family
ID=63160798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810315499.3A Active CN108425558B (en) | 2018-04-10 | 2018-04-10 | Electronic lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108425558B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004076277A (en) * | 2002-08-09 | 2004-03-11 | Yunirekku:Kk | Locking device |
| CN101067355A (en) * | 2007-04-09 | 2007-11-07 | 余义伦 | Safety antitheft lock and key |
| DE202011003043U1 (en) * | 2011-02-23 | 2011-04-21 | Meisel, Thilo | Electrical contact point for transmission of data and power supply with magnetic posture and positioning |
| CN102747891A (en) * | 2012-07-13 | 2012-10-24 | 深圳市悦德智能科技有限公司 | Intelligent lock |
| CN208220403U (en) * | 2018-04-10 | 2018-12-11 | 中山市逸家安防科技有限公司 | A kind of electric lock head of electronic lock |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160333608A1 (en) * | 2015-05-15 | 2016-11-17 | Michael Earl Ingle | Anti-Bumping Impact Protection Device and Method for Solenoid-Operated Locking Containers |
-
2018
- 2018-04-10 CN CN201810315499.3A patent/CN108425558B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004076277A (en) * | 2002-08-09 | 2004-03-11 | Yunirekku:Kk | Locking device |
| CN101067355A (en) * | 2007-04-09 | 2007-11-07 | 余义伦 | Safety antitheft lock and key |
| DE202011003043U1 (en) * | 2011-02-23 | 2011-04-21 | Meisel, Thilo | Electrical contact point for transmission of data and power supply with magnetic posture and positioning |
| CN102747891A (en) * | 2012-07-13 | 2012-10-24 | 深圳市悦德智能科技有限公司 | Intelligent lock |
| CN208220403U (en) * | 2018-04-10 | 2018-12-11 | 中山市逸家安防科技有限公司 | A kind of electric lock head of electronic lock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108425558A (en) | 2018-08-21 |
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| CB02 | Change of applicant information |
Address after: 528415 card 2, first floor, No. 1-2, Lianrong Road, Xiaolan Town, Zhongshan City, Guangdong Province Applicant after: Guangdong Yijia Security Technology Co.,Ltd. Address before: 528414 card 1, first floor, No. 1-2, Lianrong Road, Dongsheng Town, Zhongshan City, Guangdong Province Applicant before: ZHONGSHAN CITY HOME SECURITY TECHNOLOGY CO.,LTD. |
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