CN111335793A - Access control system capable of automatically unlocking in case of fire - Google Patents
Access control system capable of automatically unlocking in case of fire Download PDFInfo
- Publication number
- CN111335793A CN111335793A CN202010251818.6A CN202010251818A CN111335793A CN 111335793 A CN111335793 A CN 111335793A CN 202010251818 A CN202010251818 A CN 202010251818A CN 111335793 A CN111335793 A CN 111335793A
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- CN
- China
- Prior art keywords
- control
- cavity
- wall
- rod
- control rod
- 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
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Classifications
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- 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
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- 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
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- 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
- E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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- 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
- E05B2047/0014—Constructional features of actuators or power transmissions therefor
- E05B2047/0018—Details of actuator transmissions
- E05B2047/002—Geared transmissions
Abstract
The invention discloses an access control system capable of automatically unlocking in case of fire, which comprises a machine body fixedly arranged on a door, wherein a power cavity is arranged in the machine body, a power device is arranged in the power cavity, a transmission cavity is arranged in the machine body, a transmission device is arranged in the transmission cavity, a cooling cavity is arranged in the machine body, a cooling device is arranged in the cooling cavity, a control cavity is arranged in the machine body, and a control device is arranged in the control cavity.
Description
Technical Field
The invention relates to the technical field related to access control systems, in particular to an access control system capable of being automatically unlocked in case of fire.
Background
The entrance guard is furniture which is visible and very important everywhere in life and plays an important role in the theft prevention and the safety of family offices and the like. With the rapid development of economy in China, the intelligent access control is widely applied by virtue of the advantage of high safety. Wherein, intelligent entrance guard is different from traditional mechanical lock, adopts a large amount of electronic components with the integrated comprehensive product of technologies such as electronic technology and computer technology, like electromagnetic lock and trick lock etc. and to current access control system, at the proruption conflagration, people probably can't know immediately to can lead to the entrance guard to damage because of the conflagration often, can't open, perhaps because the temperature is too high on the door, lead to the people to be unable to flee, cause great injures and deaths.
Disclosure of Invention
The invention aims to provide an access control system capable of being automatically unlocked in case of fire, which is used for overcoming the defects in the prior art.
The entrance guard system capable of automatically unlocking in case of fire comprises a machine body fixedly arranged on a door, a power cavity is arranged in the machine body, a power device is arranged in the power cavity, a transmission cavity is arranged in the machine body, a transmission device is arranged in the transmission cavity, a cooling cavity is arranged in the machine body, a cooling device is arranged in the cooling cavity, a control cavity is arranged in the machine body, a control device is arranged in the control cavity, the control device comprises a support shaft fixedly arranged on the front wall and the rear wall of the control cavity, a rotating rod is rotatably arranged on the support shaft and is connected with the inner wall of the right side of the control cavity through a first spring, a connecting block is rotatably arranged at the lower end of the rotating rod, a movable block is connected at the lower end of the connecting block, a movable cavity is arranged in the movable block, a first sliding groove is arranged on the right wall of the movable cavity, and three lock rods are arranged in the first, the right end face of the lock rod is an inclined plane, the left end of the lock rod is connected with a connecting plate, the connecting plate is connected with the left wall of the movable cavity through two second springs, the left end of the movable block is connected with a concave block, a first control rod is arranged in the concave block in a sliding mode, the right end of the first control rod is connected with a second control rod, the left end of the first control rod is connected with a third control rod, a clearance groove is formed in the third control rod, the third control rod is connected with the inner wall of the control cavity through an extension spring, a fixed rod is fixedly arranged on the bottom wall of the control cavity, the upper end of the fixed rod is connected with a fourth control rod, a fifth control rod is arranged in the fourth control rod in a sliding mode, the fifth control rod is located in the clearance groove, the lower end of the fifth control rod is connected with a sixth control rod, and the sixth control rod is connected with the lower wall of the fourth control rod through, the lower wall of the fourth control rod is provided with a first electromagnet, the lower end of the sixth control rod is provided with a conductor, the bottom wall of the control cavity is provided with two metal sheets, the upper end of the machine body is provided with an information box, the lower end of the machine body is provided with a smoke sensor, and the lower end of the machine body is provided with a bell.
On the basis of the technical scheme, power device including fixed set up in the motor of power chamber left side inner wall, the motor right-hand member is connected with the worm that extends right, be equipped with the control box in the power chamber, control box control whether the first electro-magnet is circular telegram work, smoke transducer with information box feedback information gives the control box, power chamber right side wall is equipped with the second sliding tray, the sixth control lever left end is connected with the transfer line, the power chamber antetheca is equipped with the third sliding tray, be equipped with the bearing block in the third sliding tray, it is equipped with the screw thread axle that extends backward to rotate in the bearing block, the epaxial fixed worm wheel that can with the worm meshing that is equipped with of screw thread.
On the basis of the technical scheme, the transmission device comprises a gear shaft which is rotatably arranged on the bottom wall of the transmission cavity, a first driven bevel gear is fixedly arranged on the gear shaft, a gear is fixedly arranged at the upper end of the gear shaft, a fourth sliding groove is formed in the left wall and the right wall of the transmission cavity, a rack rod which extends left and right and is meshed with the gear is arranged in the fourth sliding groove, a second electromagnet is fixedly arranged on the left wall of the transmission cavity, the control box controls whether the second electromagnet is electrified to work, a spline sleeve connected with a spline is arranged at the right end of the worm, the right end of the spline sleeve is connected with a first driving bevel gear meshed with the first driven bevel gear, a magnet is rotatably arranged on the spline sleeve, and the spline sleeve is connected with the left wall of the transmission cavity through a third spring.
On the basis of the technical scheme, the cooling device comprises a through hole formed in the front wall of the cooling cavity, the threaded shaft is located in the through hole, a threaded plate in threaded connection is arranged on the threaded shaft, cooling liquid is arranged in the cooling cavity, and a liquid outlet is formed in the rear wall of the cooling cavity.
The invention has the beneficial effects that: this device mechanism is simple, and is simple and convenient to use, realizes unblanking fast through mechanical transmission, through setting up electro-magnet and smoke transducer, can be when meetting the conflagration, entrance guard can the automatic unblock open to can be timely through the jingle bell warning user that sets up, simultaneously, through the heat sink of setting can effectual reduction the temperature on the door, reduce the damage to the user.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic view of an overall structure of an access control system capable of being automatically unlocked in case of fire;
FIG. 2 is a schematic view of the structure at A-A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 1;
fig. 4 is an enlarged schematic view of the structure at C in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
Referring to fig. 1 to 4, an access control system capable of being automatically unlocked in case of fire according to an embodiment of the present invention includes a body 10 fixedly disposed on a door, a power chamber 11 is disposed in the body 10, a power device is disposed in the power chamber 11, a transmission chamber 40 is disposed in the body 10, a transmission device is disposed in the transmission chamber 40, a cooling chamber 45 is disposed in the body 10, a cooling device is disposed in the cooling chamber 45, a control chamber 37 is disposed in the body 10, a control device is disposed in the control chamber 37, the control device includes a support shaft 35 fixedly disposed on a front wall and a rear wall of the control chamber 37, a rotating rod 36 is rotatably disposed on the support shaft 35, the rotating rod 36 is connected to an inner wall of a right side of the control chamber 37 through a first spring 34, a connecting block 32 is rotatably disposed at a lower end of the rotating rod 36, a movable block 27 is connected to a lower end of the connecting block, the movable block 27 is provided with a movable cavity 26, the right wall of the movable cavity 26 is provided with a first sliding groove 30, the first sliding groove 30 is provided with three lock rods 29, the right end face of each lock rod 29 is an inclined plane, the left end of each lock rod 29 is connected with a connecting plate 28, the connecting plate 28 is connected with the left wall of the movable cavity 26 through two second springs 31, the left end of each movable block 27 is connected with a concave block 23, the left wall of each concave block 23 is provided with a first control rod 24 in a sliding manner, the right end of each first control rod 24 is connected with a second control rod 25, the left end of each first control rod 24 is connected with a third control rod 54, a clearance groove 55 is arranged in each third control rod 54, each third control rod 54 is connected with the inner wall of the control cavity 37 through an extension spring 19, the bottom wall of the control cavity 37 is fixedly provided with a fixing rod 22, the upper end of each fixing rod 22 is connected with a fourth control rod 53, and a fifth control rod 56 is arranged in each, fifth control lever 56 is located in keep away empty groove 55, fifth control lever 56 lower extreme is connected with sixth control lever 52, sixth control lever 52 through compression spring 59 with fourth control lever 53 lower wall connection, fourth control lever 53 lower wall is equipped with first electro-magnet 58, sixth control lever 52 lower extreme is equipped with conductor 51, control chamber 37 diapire is equipped with two sheetmetals 20, the upper end of organism 10 is equipped with information box 41, the organism 10 lower extreme is equipped with smoke transducer 18, the organism 10 lower extreme is equipped with jingle bell 21.
In addition, in one embodiment, the power device includes a motor 13 fixedly arranged on the inner wall of the left side of the power cavity 11, the right end of the motor 13 is connected with a worm 14 extending rightward, a control box 42 is arranged in the power cavity 11, the control box 42 controls whether the first electromagnet 58 is powered on, the smoke sensor 18 and the information box 41 feed back information to the control box 42, the right wall of the power cavity 11 is provided with a second sliding groove 17, the left end of the sixth control rod 52 is connected with a transmission rod 50, the front wall of the power cavity 11 is provided with a third sliding groove 49, a bearing block 99 is arranged in the third sliding groove 49, a threaded shaft 48 extending backward is rotatably arranged in the bearing block 99, and a worm wheel 47 capable of being meshed with the worm 14 is fixedly arranged on the threaded shaft 48.
In addition, in one embodiment, the transmission device comprises a gear shaft 15 rotatably arranged on the bottom wall of the transmission cavity 40, a first driven bevel gear 33 is fixedly arranged on the gear shaft 15, a gear 39 is fixedly arranged at the upper end of the gear shaft 15, the left and right walls of the transmission cavity 40 are provided with fourth sliding grooves 12, rack bars 38 which extend left and right and are engaged with the gears 39 are arranged in the fourth sliding grooves 12, a second electromagnet 62 is fixedly arranged on the left wall of the transmission cavity 40, the control box 42 controls whether the second electromagnet 62 is electrified to work or not, the right end of the worm 14 is provided with a spline housing 65 in spline connection, the right end of the spline housing 65 is connected with a first driving bevel gear 64 capable of being meshed with the first driven bevel gear 33, the spline housing 65 is provided with a magnet 63 in a rotating manner, and the spline housing 65 is connected with the left wall of the transmission cavity 40 through a third spring 60.
In addition, in one embodiment, the cooling device includes a through hole 43 disposed on the front wall of the cooling cavity 45, the threaded shaft 48 is located in the through hole 43, a threaded plate 46 connected by threads is disposed on the threaded shaft 48, cooling liquid is disposed in the cooling cavity 45, and a liquid outlet 44 is disposed on the rear wall of the cooling cavity 45.
In the initial state, the motor 13 is operated, the first spring 34, the second spring 31 and the third spring 60 are in the normal state, the extension spring 19 is in the extension state, the compression spring 59 is in the compression state, the first electromagnet 58 is energized to operate, the second electromagnet 62 is not energized to operate, the worm wheel 47 is not engaged with the worm 14, the first bevel drive gear 64 is not engaged with the first bevel driven gear 33,
when the door is opened, information is input through the information box 41, the information box 41 feeds back information to the control box 42, the control box 42 controls the second electromagnet 62 to be electrified, the second electromagnet 62 works to enable the magnet 63 to move rightwards, the magnet 63 drives the spline housing 65 and the first driving bevel gear 64 to move rightwards, so that the first driving bevel gear 64 is meshed with the first driven bevel gear 33, the motor 13 drives the worm 14 to rotate, the worm 14 drives the spline housing 65 to rotate, the spline housing 65 drives the first driving bevel gear 64 to rotate, the first driving bevel gear 64 drives the first driven bevel gear 33 to rotate, the first driven bevel gear 33 drives the gear shaft 15 to rotate, the gear shaft 15 drives the gear 39 to rotate, and the gear 39 drives the rack rod 38 to move rightwards, the rotating rod 36 is rotated clockwise, and the rotating rod 36 drives the connecting block 32, the movable block 27, the connecting plate 28 and the lock rod 29 to move leftwards, so that the door is unlocked;
when the connecting block 32, the movable block 27, the connecting plate 28 and the lock rod 29 are reset, the control box 42 controls the second electromagnet 62 to be powered off, the magnet 63 drives the spline sleeve 65 and the first driving bevel gear 64 to move leftwards under the action of the elastic force of the third spring 60, so that the first driving bevel gear 64 is meshed with and separated from the first driven bevel gear 33, and the rotating rod 36 rotates and resets under the action of the elastic force of the first spring 34;
when a fire breaks out, the smoke sensor 18 feeds back information to the control box 42, the control box 42 controls the first electromagnet 58 to be powered off, under the action of the elastic force of the compression spring 59, the sixth control rod 52, the conductor 51 and the fifth control rod 56 move downwards, the conductor 51 is in contact with the metal sheet 20 and is powered on, so that the bell 21 works, the purpose of warning a person is achieved, under the action of the elastic force of the extension spring 19, the third control rod 54 drives the first control rod 24, the second control rod 25, the concave block 23 and the movable block 27 to move leftwards, so that automatic unlocking is achieved, the sixth control rod 52 drives the transmission rod 50 and the threaded shaft 48 to move downwards, so that the worm 14 is meshed with the worm wheel 47, the worm 14 drives the worm wheel 47 to rotate, so that the threaded plate 46 moves leftwards, and the cooling liquid in the cooling cavity 45 is sprayed out through the liquid outlet 44, so that the door is cooled.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. The utility model provides an access control system that can automatic unblock during conflagration, includes the fixed organism that sets up on the door, be equipped with power chamber, its characterized in that in the organism: the machine body is provided with a power device, a transmission cavity is arranged in the machine body, the transmission cavity is internally provided with a transmission device, the machine body is internally provided with a cooling cavity, the cooling cavity is internally provided with a cooling device, the machine body is internally provided with a control cavity, the control cavity is internally provided with a control device, the control device comprises a support shaft fixedly arranged on the front wall and the rear wall of the control cavity, the support shaft is rotatably provided with a rotating rod, the rotating rod is connected with the inner wall of the right side of the control cavity through a first spring, the lower end of the rotating rod is rotatably provided with a connecting block, the lower end of the connecting block is connected with a movable block, the movable block is internally provided with a movable cavity, the right wall of the movable cavity is provided with a first sliding groove, the first sliding groove is internally provided with three lock rods, the right end face of each lock rod is an inclined face, the left end of each lock rod, the left end of the movable block is connected with a concave block, the left wall of the concave block is provided with a first control rod in a sliding manner, the right end of the first control rod is connected with a second control rod, the left end of the first control rod is connected with a third control rod, a void-avoiding groove is formed in the third control rod, the third control rod is connected with the inner wall of the control cavity through an extension spring, the bottom wall of the control cavity is fixedly provided with a fixed rod, the upper end of the fixed rod is connected with a fourth control rod, a fifth control rod is arranged in the fourth control rod in a sliding manner, the fifth control rod is positioned in the void-avoiding groove, the lower end of the fifth control rod is connected with a sixth control rod, the sixth control rod is connected with the lower wall of the fourth control rod through a compression spring, the lower wall of the fourth control rod is provided with a first electromagnet, the lower end of the sixth control rod is provided with a conductor, and the bottom wall of the, the portable smoke detector is characterized in that an information box is arranged at the upper end of the machine body, a smoke sensor is arranged at the lower end of the machine body, and a bell is arranged at the lower end of the machine body.
2. The access control system capable of being unlocked automatically in case of fire according to claim 1, characterized in that: the power device including fixed set up in the motor of power chamber left side inner wall, the motor right-hand member is connected with the worm that extends right, be equipped with the control box in the power chamber, the control box control whether the first electro-magnet is circular telegram work, smoke transducer with information box feedback information gives the control box, power chamber right side wall is equipped with the second sliding tray, the sixth control lever left end is connected with the transfer line, the power chamber antetheca is equipped with the third sliding tray, be equipped with the bearing block in the third sliding tray, it is equipped with the screw shaft of backward extension to rotate in the bearing block, the epaxial fixed worm wheel that can mesh with the worm that is equipped with of screw.
3. The access control system capable of being unlocked automatically in case of fire according to claim 1, characterized in that: the transmission device comprises a gear shaft which is rotatably arranged on the bottom wall of the transmission cavity, a first driven bevel gear is fixedly arranged on the gear shaft, a gear is fixedly arranged at the upper end of the gear shaft, a fourth sliding groove is formed in the left wall and the right wall of the transmission cavity, a rack rod which is engaged with the gear and extends in the left-right direction is arranged in the fourth sliding groove, a second electromagnet is fixedly arranged on the left wall of the transmission cavity, the control box controls whether the second electromagnet is electrified to work, a spline sleeve connected with a spline is arranged at the right end of the worm, the right end of the spline sleeve is connected with a first driving bevel gear engaged with the first driven bevel gear, a magnet is rotatably arranged on the spline sleeve, and the spline sleeve is connected with the left wall of the transmission cavity through a.
4. The access control system capable of being unlocked automatically in case of fire according to claim 1, characterized in that: the cooling device comprises a through hole formed in the front wall of the cooling cavity, the threaded shaft is located in the through hole, a threaded plate in threaded connection is arranged on the threaded shaft, cooling liquid is arranged in the cooling cavity, and a liquid outlet is formed in the rear wall of the cooling cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010251818.6A CN111335793B (en) | 2020-04-01 | 2020-04-01 | Access control system capable of automatically unlocking in case of fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010251818.6A CN111335793B (en) | 2020-04-01 | 2020-04-01 | Access control system capable of automatically unlocking in case of fire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111335793A true CN111335793A (en) | 2020-06-26 |
| CN111335793B CN111335793B (en) | 2021-01-15 |
Family
ID=71180661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010251818.6A Active CN111335793B (en) | 2020-04-01 | 2020-04-01 | Access control system capable of automatically unlocking in case of fire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111335793B (en) |
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| CN101624894A (en) * | 2009-08-14 | 2010-01-13 | 天津理工大学 | Two-sashed fire emergency passage evacuation door |
| CN201460652U (en) * | 2009-08-14 | 2010-05-12 | 天津理工大学 | Single-leaf fire emergency passage evacuation door |
| CN106522792A (en) * | 2016-12-01 | 2017-03-22 | 重庆金华兴门业有限公司 | Fireproof door capable of being opened automatically |
| CN207245561U (en) * | 2017-08-04 | 2018-04-17 | 深圳市新安盾科技有限公司 | One kind fire prevention intelligent security guard door |
| CN108119031A (en) * | 2018-01-30 | 2018-06-05 | 南京卓茨机电科技有限公司 | A kind of safe and reliable intelligent protective device for underground construction |
| CN108179963A (en) * | 2018-01-12 | 2018-06-19 | 安徽省金鹏节能科技有限公司 | A kind of wood moulding aluminum alloy doors and windows with fire-extinguishing function concurrently |
| CN109057665A (en) * | 2018-09-29 | 2018-12-21 | 湖州南浔美瑞鑫家具有限公司 | A kind of unlatching alarming fireproof door |
| CN109779492A (en) * | 2019-01-17 | 2019-05-21 | 浙江齐嘉消防科技有限公司 | Humidifying flame-retardant fireproof door |
| CN110409973A (en) * | 2019-08-09 | 2019-11-05 | 象山锐文智能装备有限公司 | A kind of fire extinguishing type fire exit door preventing fire spreading |
| CN110671029A (en) * | 2019-10-31 | 2020-01-10 | 天津丰威包装制品销售有限公司 | Door and window with fireproof sealing function |
| CN110905365A (en) * | 2019-12-10 | 2020-03-24 | 龙游平涂耐火材料有限公司 | Fire door is prevented to normal close formula building |
-
2020
- 2020-04-01 CN CN202010251818.6A patent/CN111335793B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101624894A (en) * | 2009-08-14 | 2010-01-13 | 天津理工大学 | Two-sashed fire emergency passage evacuation door |
| CN201460652U (en) * | 2009-08-14 | 2010-05-12 | 天津理工大学 | Single-leaf fire emergency passage evacuation door |
| CN106522792A (en) * | 2016-12-01 | 2017-03-22 | 重庆金华兴门业有限公司 | Fireproof door capable of being opened automatically |
| CN207245561U (en) * | 2017-08-04 | 2018-04-17 | 深圳市新安盾科技有限公司 | One kind fire prevention intelligent security guard door |
| CN108179963A (en) * | 2018-01-12 | 2018-06-19 | 安徽省金鹏节能科技有限公司 | A kind of wood moulding aluminum alloy doors and windows with fire-extinguishing function concurrently |
| CN108119031A (en) * | 2018-01-30 | 2018-06-05 | 南京卓茨机电科技有限公司 | A kind of safe and reliable intelligent protective device for underground construction |
| CN109057665A (en) * | 2018-09-29 | 2018-12-21 | 湖州南浔美瑞鑫家具有限公司 | A kind of unlatching alarming fireproof door |
| CN109779492A (en) * | 2019-01-17 | 2019-05-21 | 浙江齐嘉消防科技有限公司 | Humidifying flame-retardant fireproof door |
| CN110409973A (en) * | 2019-08-09 | 2019-11-05 | 象山锐文智能装备有限公司 | A kind of fire extinguishing type fire exit door preventing fire spreading |
| CN110671029A (en) * | 2019-10-31 | 2020-01-10 | 天津丰威包装制品销售有限公司 | Door and window with fireproof sealing function |
| CN110905365A (en) * | 2019-12-10 | 2020-03-24 | 龙游平涂耐火材料有限公司 | Fire door is prevented to normal close formula building |
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| Publication number | Publication date |
|---|---|
| CN111335793B (en) | 2021-01-15 |
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