CN107489310A - A kind of antitheft door for preventing from closing automatically - Google Patents
A kind of antitheft door for preventing from closing automatically Download PDFInfo
- Publication number
- CN107489310A CN107489310A CN201710472758.9A CN201710472758A CN107489310A CN 107489310 A CN107489310 A CN 107489310A CN 201710472758 A CN201710472758 A CN 201710472758A CN 107489310 A CN107489310 A CN 107489310A
- Authority
- CN
- China
- Prior art keywords
- antitheft door
- electromagnet
- preventing
- closing automatically
- permanent magnet
- 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.)
- Pending
Links
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000004079 fireproofing Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 240000004678 Panax pseudoginseng Species 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 102100000672 SMPX Human genes 0.000 description 1
- 108060007673 SMPX Proteins 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000005035 ginseng Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting Effects 0.000 description 1
- 235000009566 rice Nutrition 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
-
- 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
- E05B47/0038—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets
-
- 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
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
- E05B47/0603—Controlling mechanically-operated bolts by electro-magnetically-operated detents the detent moving rectilinearly
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/11—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against burglary
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
- E06B7/30—Peep-holes; Devices for speaking through; Doors having windows
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
Abstract
The present invention relates to a kind of antitheft door for preventing from closing automatically, including antitheft door main body, door lock, pressure sensor, power supply and the alert mechanism being arranged on antitheft door main body, in addition to the electromagnet and permanent magnet being arranged on doorframe；The door lock is connected with an outer handle by a rotating mechanism, and the pressure sensor is arranged on the outer grip on hand；Groove is provided with relative to the position of Door-lock bolt on the doorframe, side of the permanent magnet away from electromagnet is provided with projection, and the projection is movably arranged in the groove；The electromagnet, pressure sensor and the series loop of electric power generating composition one, when there is external force to act on outer handle, pressure sensor, which converts the pressure to electric current, to be made electromagnet energization hold permanent magnet and causes projection to depart from groove.The present invention is simple and reasonable, effectively can prevent it from closing automatically, so as to reach the effect for reminding user's carrying keys to go out.
Description
Technical field
The present invention relates to burglary-resisting installation technical field, more particularly to a kind of antitheft door for preventing from closing automatically.
Background technology
Anti-theft safety door is to be assigned with theftproof lock, can resist unnormal unlocking under certain condition within a certain period of time, tool
There is certain security protection performance and meet the door of corresponding anti-theft security rank, it is an important leverage of Family protection device.
General qualified antitheft door utilized the ordinary hand tools and electric hand drill etc. such as chisel, screwdriver, crowbar in 15 minutes
One 615 square millimeters of opening can not be pried open or opened on door leaf to portable power tool, or in 150 squares of millis of keyed end
One 38 square millimeters of opening is opened in the semicircle of rice.
At present, as anti-theft technique is constantly reformed, the security protection performance of antitheft door is greatly improved, so
And with the class of safety protection more and more higher of antitheft door, with and come inconvenience caused by bringing user is also more and more,
Such as go out and smoothly drive closing to have been found that without carry-on by wind-force antitheft door closing or antitheft door in an unguarded moment when seing a visitor out
Carrying keys, in another example the elderly forgets to carry with key when easily forgetful outgoing.Although such case is not common, once
Generation certainly will cause many unnecessary troubles.Particularly in view of the good security protection performance of existing antitheft door, by user
Itself can not solve the problems, such as to leave behind how key opens the door at all, professional unlocking staff can only be asked to open the door, even if this
Sample is also extremely wasted time and energy expensive.
In addition, existing antitheft door external door leaf typically all has certain fire-proof function, but if fire occurs for surrounding environment
During feelings, it is difficult to find the very first time that user, which is in interior, when the condition of a fire, which becomes, can not extremely flee the scene in time greatly, the life for user
Life causes titanic peril.
The content of the invention
Based on this, it is an object of the invention to overcome the deficiencies of the prior art and provide it is a kind of prevent from closing automatically it is antitheft
Door, its is simple and reasonable, effectively can prevent it from closing automatically, so as to reach the effect for reminding user's carrying keys to go out
Fruit.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of antitheft door for preventing from closing automatically, including antitheft door main body, it is arranged on door lock on antitheft door main body, pressure
Sensor, power supply and alert mechanism, in addition to the electromagnet and permanent magnet being arranged on doorframe；The door lock rotates by one
Mechanism is connected with an outer handle, and the pressure sensor is arranged on the outer grip on hand；Relative to Door-lock bolt on the doorframe
Position is provided with groove, and side of the permanent magnet away from electromagnet is provided with projection, and the projection is movably arranged on the groove
In；The electromagnet, pressure sensor and the series loop of electric power generating composition one, when there is external force to act on outer handle, pressure sensing
Device, which converts the pressure to electric current, to be made electromagnet energization hold permanent magnet and causes projection to depart from groove.
Thus, the antitheft door of the present invention for preventing from closing automatically, by setting electromagnet, pressure sensor and power supply
The series loop of composition, when the pressure sensor of outer grip on hand does not have external force application, electromagnet is not powered, and permanent magnet does not have
Held by it, now projection is arranged on the groove of doorframe, even if due to the extraneous factors such as wind-force cause antitheft door rotate also without
Method is closed automatically；And when outer grip is applied with pressure on hand so that electromagnet is powered and holds permanent magnet, it is anti-so as to close
Door is stolen, and reaches the effect for reminding user's carrying keys.In addition, the present invention is simple in construction, manufacturing cost is low, has very high city
Field promotional value.
Further, the power supply also electrically connects with the alert mechanism, and when the condition of a fire occurs, the alert mechanism sends police
The number of notifying reminds user.By limiting herein, alarm and reminding can occur rapidly when the condition of a fire occurs, so as to ensure the life of user
Life safety
Further, the alert mechanism includes temperature sensor, fireproofing controller and alarm buzzer, the temperature
Sensor is used to monitor ambient temperature and monitoring signals are sent into controller, and the controller is according to the monitoring signals control
The open/close states of alarm buzzer processed.By limiting herein, being advantageous to alert mechanism can monitor whether the external world occurs the condition of a fire
And play a part of reminding user.
Further, the temperature sensor is built in the outside one side of antitheft door main body, built in the fireproofing controller
In antitheft door body interior, the alarm buzzer is placed in the inner side one side of antitheft door main body.By limiting herein, favorably
Do not damaged in protecting the structure of alert mechanism by the external world.
Further, in addition to the signal receiver being arranged in antitheft door main body and be arranged in key signal hair
Emitter, the signal receiver and another electromagnet, electric power generating composition series loop, when signal projector is close to signal receiver
When, signal receiver, which receives the wireless signal of its transmitting and is translated into electric current, to be made electromagnet energization hold permanent magnet and causes
Projection departs from groove.By limiting herein, there can be Article 2 control circuit to control electromagnetism when pressure sensor breaks down
Tie Tong electricity work, plays standby effect.
Further, the power supply is dry battery power, and the power supply is arranged in the one side on the inside of antitheft door main body.It is logical
Cross and limit herein, be advantageous to facilitate user to change the battery of power supply, prevent to work on during power supply out of power.
Further, the lateral surface of the antitheft door main body is provided with one layer of fireprotection layer.By limiting herein, be advantageous to increase
The fire resistance of strong antitheft door main body.
Further, it is additionally provided with a sight vane above the antitheft door main body.By limiting herein, be advantageous to user's sight
Examine outdoor environment.
Brief description of the drawings
Fig. 1 is the structural representation of the antitheft door of the invention for preventing from closing automatically；
Fig. 2 is the partial enlarged drawing of the antitheft door of the invention for preventing from closing automatically；
Fig. 3 is the structural representation of electromagnet of the present invention and permanent magnet；
Fig. 4 is the fundamental diagram of electromagnet of the present invention and permanent magnet；
Fig. 5 is the circuit theory diagrams of alert mechanism of the present invention.
Embodiment
To further illustrate each embodiment, the present invention is provided with accompanying drawing.These accompanying drawings are the invention discloses the one of content
Point, it can coordinate the associated description of specification to explain the operation principles of embodiment mainly to illustrate embodiment.Coordinate ginseng
These contents are examined, one of ordinary skill in the art will be understood that other may obtain embodiment and advantages of the present invention.
Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, wherein, Fig. 1 is the antitheft door that the present invention prevents from closing automatically
Structural representation；Fig. 2 is the partial enlarged drawing of the antitheft door of the invention for preventing from closing automatically；Fig. 3 be electromagnet of the present invention with
The structural representation of permanent magnet；Fig. 4 is the fundamental diagram of electromagnet and permanent magnet of the present invention；Fig. 5 is alert mechanism of the present invention
Circuit theory diagrams.
A kind of antitheft door for preventing from closing automatically, including antitheft door main body 10, the door lock being arranged on antitheft door main body 10
30th, pressure sensor 41, power supply and alert mechanism, in addition to the electromagnet 20 and permanent magnet 21 being arranged on doorframe 11；Institute
State door lock 30 and an outer handle 40 is connected with by a rotating mechanism, the pressure sensor 41 is arranged on the outer handle 40；Institute
State and be provided with groove 12, the side of the permanent magnet 21 away from electromagnet 20 relative to the position of the dead bolt 31 of door lock 30 on doorframe 11
Provided with projection 22, and the projection 22 is movably arranged in the groove 12；The electromagnet 20, pressure sensor 41 and power supply structure
Into a series loop, when there is external force to act on outer handle 40, pressure sensor 41, which converts the pressure to electric current, makes electromagnet 20
Energization holds permanent magnet 21 and causes projection 22 to depart from groove 12.The power supply also electrically connects with the alert mechanism, works as the condition of a fire
During generation, the alert mechanism signal an alert reminds user.
Specifically, the alert mechanism includes temperature sensor 50, fireproofing controller and alarm buzzer 51, the temperature
Degree sensor 50 is used to monitor ambient temperature and monitoring signals are sent into controller, and the controller is believed according to the monitoring
Number control alarm buzzer 51 open/close states.
Preferably, the temperature sensor 50 is built in the outside one side of antitheft door main body 10, in the fireproofing controller
It is placed in inside antitheft door main body 10, the alarm buzzer 51 is placed in the inner side one side of antitheft door main body 10.
In addition, in order to ensure that electromagnet 20 can effectively be run, present invention additionally comprises be arranged in antitheft door main body 10
Signal receiver 42 and the signal projector 43 being arranged in key, the signal receiver 42 and electromagnet 20, electric power generating composition
Another series loop, when signal projector 43 is close to signal receiver 42, signal receiver 42 receives the wireless of its transmitting
Signal and be translated into electric current make electromagnet 20 be powered hold permanent magnet 21 and cause projection 22 depart from groove 12；So that
Pressure sensor 41 can have the normal work that stand-by provision ensures electromagnet 20 when breaking down.
Wherein, power supply of the present invention is dry battery power, and the power supply is arranged on the one side of the antitheft inner side of door main body 10
On.In addition, in order to improve the fire resistance of antitheft door main body 10, the lateral surface of the antitheft door main body 10 is provided with one layer of fire prevention
Layer.In the present embodiment, it is preferable that the top of the antitheft door main body 10 is additionally provided with a sight vane 13.
The operation principle of the antitheft door for preventing from closing automatically of the explanation present invention below：
Under normal circumstances, when user's carrying keys are gone out, catch outer handle 40 to rotate and cause the normal work of electromagnet 20 simultaneously
Permanent magnet 21 is held, now projection 22, which is followed, departs from groove 12, and the dead bolt 31 on door lock 30 is just fastened on groove 12, normally
Close antitheft door.
And when forgetting to close antitheft door when user gos out, even if now antitheft door turns because of the extraneous factor such as wind-force
Dynamic, because being acted on without external force on the pressure sensor 41 of outer handle 40, the projection 22 on permanent magnet 21 is still stuck in groove 12
In, cause dead bolt 31 can not be arranged in the groove 12, therefore antitheft door can not close, and can thus remind user to forget band key
Spoon go out, and user will not because forget band key and be locked in outdoors, and enter house again bring back key again will be antitheft
Just gone out on door lock.
Wherein, if pressure sensor 41 breaks down, user can use signal projector 43 on the key to cause electricity
Magnet 20 holds permanent magnet 21 and retracted so as to lock antitheft door.
In addition, when the condition of a fire occurs for outdoor environment, temperature sensor 42 can be quickly detected and transmit signals to anti-
Fiery controller, when temperature reaches a high temperature, alarm and reminding occurs for fireproofing controller control alarm buzzer 43, so that user
The extraneous generation condition of a fire can quickly be sensed.
Compared with prior art, the antitheft door of the present invention for preventing from closing automatically, by setting electromagnet, pressure to pass
The series loop of sensor and electric power generating composition, when the pressure sensor of outer grip on hand does not have external force application, electromagnet is not powered,
Permanent magnet is not held by it, and now projection is arranged on the groove of doorframe, though due to the extraneous factors such as wind-force cause it is antitheft
Door is rotated and can not also closed automatically；And when outer grip is applied with pressure on hand so that electromagnet is powered and holds permanent magnet, so as to
Antitheft door can be closed, and reaches the effect for reminding user's carrying keys.In addition, the present invention is simple in construction, manufacturing cost is low, tool
There is very high market popularization value.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.
Claims (8)
- A kind of 1. antitheft door for preventing from closing automatically, it is characterised in that：Including antitheft door main body, it is arranged on antitheft door main body Door lock, pressure sensor, power supply and alert mechanism, in addition to the electromagnet and permanent magnet being arranged on doorframe；The door lock One outer handle is connected with by a rotating mechanism, the pressure sensor is arranged on the outer grip on hand；On the doorframe relative to The position of Door-lock bolt is provided with groove, and side of the permanent magnet away from electromagnet is provided with projection, and projection activity installation In the groove；The electromagnet, pressure sensor and the series loop of electric power generating composition one, outer handle is acted on when there is external force When, pressure sensor, which converts the pressure to electric current, to be made electromagnet energization hold permanent magnet and causes projection to depart from groove.
- 2. the antitheft door according to claim 1 for preventing from closing automatically, it is characterised in that：The power supply also with the alarm Mechanism electrically connects, and when the condition of a fire occurs, the alert mechanism signal an alert reminds user.
- 3. the antitheft door according to claim 2 for preventing from closing automatically, it is characterised in that：The alert mechanism includes temperature Sensor, fireproofing controller and alarm buzzer, the temperature sensor are used to monitor ambient temperature and believe monitoring Number controller is sent to, the controller controls the open/close states of alarm buzzer according to the monitoring signals.
- 4. the antitheft door according to claim 3 for preventing from closing automatically, it is characterised in that：The temperature sensor is built in The outside one side of antitheft door main body, the fireproofing controller are built in antitheft door body interior, and the alarm buzzer is placed on In the inner side one side of antitheft door main body.
- 5. the antitheft door according to claim 4 for preventing from closing automatically, it is characterised in that：Also include being arranged on antitheft door master Internal signal receiver and the signal projector being arranged in key, the signal receiver and electromagnet, electric power generating composition are another One series loop, when signal projector is close to signal receiver, signal receiver receives the wireless signal of its transmitting and will It, which is converted into electric current, makes electromagnet energization hold permanent magnet and causes projection to depart from groove.
- 6. the antitheft door for preventing from closing automatically according to any one of claim 1 to 5, it is characterised in that：The power supply is Dry battery power, and the power supply is arranged in the one side on the inside of antitheft door main body.
- 7. the antitheft door according to claim 6 for preventing from closing automatically, it is characterised in that：The outside of the antitheft door main body Face is provided with one layer of fireprotection layer.
- 8. the antitheft door according to claim 7 for preventing from closing automatically, it is characterised in that：The top of the antitheft door main body It is additionally provided with a sight vane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710472758.9A CN107489310A (en) | 2017-06-21 | 2017-06-21 | A kind of antitheft door for preventing from closing automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710472758.9A CN107489310A (en) | 2017-06-21 | 2017-06-21 | A kind of antitheft door for preventing from closing automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107489310A true CN107489310A (en) | 2017-12-19 |
Family
ID=60643367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710472758.9A Pending CN107489310A (en) | 2017-06-21 | 2017-06-21 | A kind of antitheft door for preventing from closing automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107489310A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019162566A1 (en) * | 2018-02-21 | 2019-08-29 | Axtuator OY | Mechanism for securing a digital lock from unauthorized use |
| US10641008B2 (en) | 2018-02-21 | 2020-05-05 | Axtuator OY | Electromagnetic actuator |
| CN112302501A (en) * | 2020-10-29 | 2021-02-02 | 浙江振元安防科技有限公司 | Fireproof door capable of being opened quickly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203924996U (en) * | 2014-05-29 | 2014-11-05 | 西安交通大学 | A kind of safe-guard door lock that can prevent from leaving behind key |
| CN205445392U (en) * | 2015-12-30 | 2016-08-10 | 中研创展(天津)科技有限公司 | Burglary -resisting door based on thing networking |
| CN106223812A (en) * | 2016-08-27 | 2016-12-14 | 天津龙甲特种门窗有限公司 | A kind of fire resistant doorsets with early warning function |
| CN106854963A (en) * | 2017-01-23 | 2017-06-16 | 浙江大学 | A kind of multifunction gate with safety guarantee |
-
2017
- 2017-06-21 CN CN201710472758.9A patent/CN107489310A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203924996U (en) * | 2014-05-29 | 2014-11-05 | 西安交通大学 | A kind of safe-guard door lock that can prevent from leaving behind key |
| CN205445392U (en) * | 2015-12-30 | 2016-08-10 | 中研创展(天津)科技有限公司 | Burglary -resisting door based on thing networking |
| CN106223812A (en) * | 2016-08-27 | 2016-12-14 | 天津龙甲特种门窗有限公司 | A kind of fire resistant doorsets with early warning function |
| CN106854963A (en) * | 2017-01-23 | 2017-06-16 | 浙江大学 | A kind of multifunction gate with safety guarantee |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019162566A1 (en) * | 2018-02-21 | 2019-08-29 | Axtuator OY | Mechanism for securing a digital lock from unauthorized use |
| US10450777B2 (en) | 2018-02-21 | 2019-10-22 | Axtuator OY | Digital lock |
| US10641008B2 (en) | 2018-02-21 | 2020-05-05 | Axtuator OY | Electromagnetic actuator |
| US10844632B2 (en) | 2018-02-21 | 2020-11-24 | Axtuator OY | Digital lock |
| US10890014B2 (en) | 2018-02-21 | 2021-01-12 | Axtuator OY | Electromagnetic actuator |
| US10920454B2 (en) | 2018-02-21 | 2021-02-16 | Axtuator OY | Mechanism for securing a digital lock from unauthorized use |
| CN112302501A (en) * | 2020-10-29 | 2021-02-02 | 浙江振元安防科技有限公司 | Fireproof door capable of being opened quickly |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20171219 |