CN108798342B - Vertical monitoring door closer - Google Patents
Vertical monitoring door closer Download PDFInfo
- Publication number
- CN108798342B CN108798342B CN201810477716.9A CN201810477716A CN108798342B CN 108798342 B CN108798342 B CN 108798342B CN 201810477716 A CN201810477716 A CN 201810477716A CN 108798342 B CN108798342 B CN 108798342B
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- CN
- China
- Prior art keywords
- door
- sleeve
- positioning
- closing
- opening
- 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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Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000006698 induction Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
- E05Y2900/134—Fire doors
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses a vertical monitoring door closer, which comprises an arm seat mandrel, a lower rocker arm, an electronic door closing monitor, an upper rocker arm and a hydraulic controller, wherein the electronic door closing monitor is fixed on the upper rocker arm, the lower rocker arm is connected with the upper rocker arm and the door closing monitor through the arm seat mandrel, one end of the lower rocker arm is connected with the hydraulic controller, and a door opening micro switch and a door closing micro switch are arranged in the electronic door closing monitor in parallel; the arm seat mandrel comprises a positioning sleeve, a sleeve bolt, a sleeve gear and a fluted disc, wherein the positioning sleeve is sequentially embedded into an electronic door closing monitoring and upper rocker arm, the upper end of the fluted disc is embedded into the positioning sleeve, and the lower end of the fluted disc is fixedly connected with the lower rocker arm; the sleeve bolt is used for fixedly connecting the positioning sleeve, the sleeve gear and the fluted disc from top to bottom in sequence. The invention has the advantages of small module, convenient setting, integrated design and accurate real-time monitoring of the opening and closing states of the fireproof door.
Description
Technical Field
The invention relates to the technical field of fire-fighting equipment, in particular to a vertical monitoring door closer.
Background
According to the relevant regulations of fire safety, not only fire hydrants are installed at the places where fires are easy to happen, but also fire doors are required to be provided with door closers, so that the doors are in a normally closed state and are used for preventing the spread of the fires, and time is strived for people to evacuate. However, due to the light fire awareness of the general public, the fireproof door is always in an open state for the convenience of access, and even sundries are accumulated beside the fireproof door, so that the fireproof door cannot be normally closed, which is an important hidden danger of fire safety. Most of the workers need to check the closing condition of the fireproof door regularly, which only plays a temporary role, because the workers cannot predict when the fireproof door is opened and the working efficiency is too low. This requires a monitoring device to observe the opening state of the fire door in real time.
The conventional vertical monitoring door closer in the market at present cannot directly integrate a door magnetic induction module on equipment to monitor the opening and closing states of a door; the door magnetic induction module is relatively large in volume, and even if the door magnetic induction module is additionally arranged on the door closer, the volume of the door closer can be increased, so that inconvenience is brought to the installation and deployment of the door closer.
Disclosure of Invention
In view of the above, the invention aims to overcome the defects of the prior art and provide a vertical monitoring door closer which is small in monitoring module, simple in setting, sensitive in sensing and high in accuracy.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the vertical type monitoring door closer comprises an arm seat mandrel, a lower rocker arm, an electronic door closing monitor, an upper rocker arm and a hydraulic controller, wherein the electronic door closing monitor is fixed on the upper rocker arm, the lower rocker arm is movably connected with the upper rocker arm and the electronic door closing monitor through the arm seat mandrel, the upper rocker arm is fixed on a door frame, one end of the lower rocker arm is connected with the hydraulic controller and is fixed on a door plate, and a door opening micro switch and a door closing micro switch are arranged in the electronic door closing monitor in parallel; the arm seat mandrel comprises a positioning sleeve, a sleeve bolt, a sleeve gear and a fluted disc, wherein the positioning sleeve is sequentially sleeved in the electronic door closing monitor and the upper rocker arm, the upper end of the fluted disc is embedded with the sleeve gear, and the lower end of the fluted disc is fixedly connected with the lower rocker arm; the sleeve bolt is used for fixedly connecting the positioning sleeve, the sleeve gear and the fluted disc from top to bottom in sequence;
the positioning sleeve comprises a door opening positioning sleeve and a door closing positioning sleeve, the door opening positioning sleeve and the door closing positioning sleeve are hollow cylinders, a door opening positioning groove is formed in the lower end of the door opening positioning sleeve, two symmetrical door opening sleeve positioning grooves are formed in the upper end of the door opening positioning sleeve, and threaded positioning holes are respectively formed under the door opening sleeve positioning grooves; the door closing positioning sleeve is divided into a first pipe body, a second pipe body and a third pipe body, the first pipe body is sleeved in the door opening positioning sleeve, two door closing sleeve positioning grooves are symmetrically formed in the upper end of the first pipe body, a bolt supporting table is arranged at the lower end of the inner part of the first pipe body, a door closing positioning groove is formed in one side of the second pipe body, the third pipe body is sleeved in a fixing hole of an upper rocker arm rod, and the inner diameters of the second pipe body, the third pipe body and the bolt supporting table are identical and are provided with threads;
the door opening micro-switch and the door closing micro-switch are respectively provided with a roller, and the rollers are respectively matched with the door opening positioning groove and the door closing positioning groove to monitor the opening and closing of the door.
Preferably, the positioning sleeve swings with the lower rocker arm, and the door opening micro switch and the door closing micro switch swing with the upper rocker arm.
Preferably, the door opening positioning sleeve is consistent with the outer diameter of the second pipe body.
Preferably, the sleeve bolt is supported and fixed by a bolt supporting table.
Preferably, the door opening positioning groove and the door closing positioning groove cannot be positioned on the same vertical line when being installed and used.
Preferably, the sleeve gear is provided with a gear positioning opening.
Preferably, a positioning column is arranged on the inner side of the electronic door closing monitor.
Preferably, the positioning column is matched with the gear positioning opening to realize the door opening positioning of the monitoring door closer.
The beneficial effects of the invention are as follows: the door opening sleeve positioning groove and the door closing sleeve positioning groove facilitate the adjustment and rotation of the door opening positioning sleeve and the door closing positioning sleeve in the installation process; the door opening positioning groove and the door closing positioning groove are used for controlling the closing of the door; the threaded positioning holes are used for fixing the door opening positioning sleeve and the door closing positioning sleeve; the bolt supporting table is used for fixing the sleeve bolt; the positioning sleeve realizes the positioning adjustment of the door opening and closing angle, and the door opening micro-switch and the door closing micro-switch solve the problem of overlarge door magnet volume; the monitoring door closer has strong use degree, is not influenced by the size and the door opening angle of the fireproof door, and can accurately monitor the opening and closing states of the fireproof door in real time; the monitoring module is small, the setting is simple, the cost is low, the power consumption is low, the sensing sensitivity is high, the accuracy is high, and the integral design improves the function advantage of the integral product.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the positioning sleeve;
FIG. 3 is a top view of the positioning sleeve;
FIG. 4 is a schematic diagram of the connection of the positioning sleeve to the door opening micro-switch and the door closing micro-switch;
FIG. 5 is a schematic diagram of a door opening microswitch;
FIG. 6 is a schematic diagram of the connection of a door closing microswitch to a positioning sleeve;
FIG. 7 is a schematic diagram of the connection of the door opening microswitch to the positioning sleeve;
FIG. 8 is a schematic view of the structure of a sleeve gear;
FIG. 9 is a schematic view of the structure of the upper rocker arm;
FIG. 10 is a schematic view of the door opening state of the present invention;
fig. 11 is a schematic view of the door closing state of the present invention.
In the figure: 1 arm seat spindle, 2 upper rocker arm, 3 lower rocker arm, 4 electronic door closing monitor, 5 hydraulic controller, 6 sleeve bolt, 7 positioning sleeve, 8 set gear, 9 fluted disc, 10 door opening micro switch, 11 door closing micro switch, 12 fixed hole, 13 door opening positioning sleeve, 14 door closing positioning sleeve, 15 door opening sleeve positioning slots, 16 threaded positioning holes, 17 door opening positioning grooves, 18 door closing sleeve positioning slots, 19 door closing positioning grooves, 20 rollers, 21 first pipe bodies, 22 second pipe bodies, 23 third pipe bodies, 24 bolt supporting tables, 25 positioning columns and 26 gear positioning openings.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Examples
As shown in fig. 1-11, a vertical monitoring door closer comprises an arm seat mandrel 1, a lower rocker arm rod 3, an electronic door closing monitor 4, an upper rocker arm rod 2 and a hydraulic controller 5, wherein a door opening micro switch 10 and a door closing micro switch 11 are arranged in the electronic door closing monitor 4 in parallel, the arm seat mandrel 1 comprises a positioning sleeve 7, a sleeve bolt 6, a sleeve gear 8 and a fluted disc 9, the positioning sleeve 7 comprises a door opening positioning sleeve 13 and a door closing positioning sleeve 14, the door opening positioning sleeve 13 and the door closing positioning sleeve 14 are hollow cylinders, a door opening positioning groove 17 is formed in the lower end of the door opening positioning sleeve 13, two symmetrical door opening sleeve positioning grooves 15 are formed in the upper end of the door opening positioning sleeve 13, and threaded positioning holes 16 are respectively formed under the door opening sleeve positioning grooves 15; the door closing positioning sleeve 14 is divided into a first pipe body 21, a second pipe body 22 and a third pipe body 23, the first pipe body 21 is sleeved in the door opening positioning sleeve 13, two door closing sleeve positioning grooves 18 are symmetrically formed in the upper end of the first pipe body 21, a bolt supporting table 24 is arranged at the lower end of the inner part, a door closing positioning groove 19 is formed in one side of the second pipe body 22, the third pipe body 23 is sleeved in a fixing hole 12 of the upper rocker arm 2, and the inner diameters of the second pipe body 22, the third pipe body 23 and the bolt supporting table 24 are identical and provided with threads; the second pipe body 22 is consistent with the outer diameter of the door opening positioning sleeve 13; the positioning sleeve 7 is sleeved in the electronic door closing monitor 4 and the upper rocker arm 2 in sequence, the upper end of the fluted disc 9 is embedded into the sleeve gear 8, and the lower end is fixedly connected with the lower rocker arm 3; the sleeve bolt 6 fixedly connects the positioning sleeve 7, the sleeve gear 8 and the fluted disc 9 in sequence from top to bottom and is supported and fixed by the bolt supporting table 24; the door opening micro switch 10 and the door closing micro switch 11 are respectively provided with a roller 20, and the rollers 20 are respectively matched with the door opening positioning groove 17 and the door closing positioning groove 19 to monitor the opening and closing of the door; the electronic door closing monitor 4 is fixed on the upper rocker arm 2, the door opening micro switch 10 and the door closing micro switch 11 swing along with the upper rocker arm, the lower rocker arm 3 is movably connected with the upper rocker arm 2 and the electronic door closing monitor 4 through the arm seat mandrel 1, the positioning sleeve 7 swings along with the lower rocker arm 3, the upper rocker arm 2 is fixed on a door frame, and one end of the lower rocker arm 3 is connected with the hydraulic controller 5 and fixed on the door plate.
The gear positioning opening 26 is arranged on the sleeve gear 8, the positioning column 25 is arranged on the inner side of the electronic door closing monitor 4, and the door opening positioning of the monitoring door closer and the automatic door closing control are realized through the matching of the positioning column 25 and the gear positioning opening 26.
The present invention is further explained:
the door opening positioning sleeve 13 and the door closing positioning sleeve 14 are respectively contacted with the roller 20 of the door opening micro switch 10 and the door closing micro switch 11; when the door closer is installed, the positioning positions of the door opening and closing of the vertical monitoring door closer are adjusted by adjusting the door opening sleeve positioning groove 15 and the door closing sleeve positioning groove 18 above the door opening positioning sleeve 13 and the door closing positioning sleeve 14, and after the door opening positioning sleeve 13 and the door closing positioning sleeve 14 are positioned, the positions of the door opening positioning sleeve 13 and the door closing positioning sleeve 14 are locked by screwing two screws into two threaded positioning holes 16, wherein the door opening positioning groove 17 and the door closing positioning groove 19 cannot be positioned on the same vertical line.
The roller 20 on the door-opening micro-switch 10 and the door-closing micro-switch 11 are connected with the outer surface of the positioning sleeve 7, and the positioning sleeve 7 presses the switch button of the door-opening micro-switch 10 or the door-closing micro-switch 11 to enable the door to be in a half-open state; when the roller 20 of the door-opening micro switch 10 or the door-closing micro switch 11 slides into the door-opening positioning groove 17 or the door-closing positioning groove 19, the button of the door-opening micro switch 10 or the door-closing micro switch 11 is released; when the door-opening micro switch 10 button is released, it is determined that the fire door is opened, and when the door-closing micro switch 11 is released, it is determined that the fire door is closed, and the state of the fire door is transmitted to an external display device through the output end of the electronic door-closing monitor 4.
When the fireproof door is opened, the fireproof door drives the monitoring door closer to reach a preset door opening position from a closed state, and the positioning column 25 of the electronic door closing monitor 4 clamps the gear positioning opening 26 of the sleeve gear 8, so that the fireproof door is in a locking and opening state; meanwhile, the door opening micro switch 10 in the electronic door closing monitor 4 is in a complete release state under the influence of the door opening positioning groove 17, the door closing micro switch 11 is in a complete pressing state under the influence of the position movement of the door closing positioning groove 19 of the door closing positioning sleeve 14, and the monitoring system judges that the door is in an open state at the moment.
When the fire door is automatically closed by remote control or alarm, the positioning column 25 of the electronic door closing monitor 4 loosens the gear positioning opening 26 of the sleeve gear 8, the gear positioning opening 26 of the sleeve gear 8 lacks support, the fire door is automatically closed under the action of the hydraulic controller 5, and the fire door is in a closed state after the door closer is restored to a preset door closing angle; at the same time, the door closing micro switch 11 in the electronic door closing monitor 4 is in a complete release state under the influence of the door closing positioning groove 19, the door opening micro switch 10 is in a complete pressing state under the influence of the position movement of the door opening positioning groove 17 of the door opening positioning sleeve 13, and the monitoring system judges that the door is in a closed state at the moment.
The device elements in the above embodiments are conventional device elements unless otherwise specified, and the structural arrangement, operation or control modes in the embodiments are conventional arrangement, operation or control modes in the art unless otherwise specified.
Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a vertical type control door closer, includes arm seat mandrel (1), lower rocking arm pole (3), electron door closure watch-dog (4), goes up rocking arm pole (2) and hydraulic controller (5), electron door closure watch-dog (4) are fixed in on last rocking arm pole (2), lower rocking arm pole (3) pass through arm seat mandrel (1) and go up rocking arm pole (2) and electron door closure watch-dog (4) swing joint, go up rocking arm pole (2) and fix on the door frame, the one end and the hydraulic controller (5) of lower rocking arm pole (3) are connected to fix on the door plant, its characterized in that: a door opening micro switch (10) and a door closing micro switch (11) are arranged in the electronic door closing monitor (4) in parallel; the arm seat mandrel (1) comprises a positioning sleeve (7), a sleeve bolt (6), a sleeve gear (8) and a fluted disc (9), wherein the positioning sleeve (7) is sequentially sleeved in the electronic door-closing monitor (4) and the upper rocker arm (2), the upper end of the fluted disc (9) is inlaid in the sleeve gear (8), and the lower end of the fluted disc is fixedly connected with the lower rocker arm (3); the sleeve bolt (6) is used for fixedly connecting the positioning sleeve (7), the sleeve gear (8) and the fluted disc (9) from top to bottom in sequence;
the positioning sleeve (7) comprises a door opening positioning sleeve (13) and a door closing positioning sleeve (14), the door opening positioning sleeve (13) and the door closing positioning sleeve (14) are hollow cylinders, a door opening positioning groove (17) is formed in the lower end of the door opening positioning sleeve (13), two symmetrical door opening sleeve positioning grooves (15) are formed in the upper end of the door opening positioning sleeve, and threaded positioning holes (16) are formed under the door opening sleeve positioning grooves (15) respectively; the door-closing positioning sleeve (14) is divided into a first pipe body (21), a second pipe body (22) and a third pipe body (23), wherein the first pipe body (21)
The novel swing arm is sleeved in a door opening positioning sleeve (13), two door closing sleeve positioning grooves (18) are symmetrically formed in the upper end of a first pipe body (21), a bolt supporting table (24) is arranged at the inner lower end of the first pipe body, a door closing positioning groove (19) is formed in one side of a second pipe body (22), a third pipe body (23) is sleeved in a fixing hole (12) of an upper swing arm rod (2), and the inner diameters of the second pipe body (22), the third pipe body (23) and the bolt supporting table (24) are identical and are provided with threads;
the door opening micro-switch (10) and the door closing micro-switch (11) are respectively provided with a roller (20), and the rollers (20) are respectively matched with a door opening positioning groove (17) and a door closing positioning groove (19) to monitor the opening and closing of the door.
2. A vertical monitor door closer according to claim 1, wherein: the positioning sleeve (7) swings along with the lower rocker arm (3), and the door opening micro switch (10) and the door closing micro switch (11) swing along with the upper rocker arm.
3. A vertical monitor door closer according to claim 1, wherein: the door opening positioning sleeve (13) is consistent with the outer diameter of the second pipe body (22).
4. A vertical monitor door closer according to claim 1, wherein: the sleeve bolt (6) is supported and fixed by a bolt supporting table (24).
5. A vertical monitor door closer according to claim 1, wherein: when in installation and use, the door opening positioning groove (17) and the door closing positioning groove (19) cannot be positioned on the same vertical line.
6. A vertical monitor door closer according to claim 1, wherein: the sleeve gear (8) is provided with a gear positioning opening (26).
7. The vertical monitor door closer of claim 6, wherein: and a positioning column (25) is arranged on the inner side of the electronic door closing monitor (4).
8. The vertical monitor door closer of claim 7 wherein: the positioning column (25) is matched with the gear positioning opening (26) to realize the door opening positioning of the monitoring door closer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810477716.9A CN108798342B (en) | 2018-05-18 | 2018-05-18 | Vertical monitoring door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810477716.9A CN108798342B (en) | 2018-05-18 | 2018-05-18 | Vertical monitoring door closer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108798342A CN108798342A (en) | 2018-11-13 |
| CN108798342B true CN108798342B (en) | 2024-04-02 |
Family
ID=64092599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810477716.9A Active CN108798342B (en) | 2018-05-18 | 2018-05-18 | Vertical monitoring door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108798342B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2102984U (en) * | 1991-11-04 | 1992-04-29 | 董士聪 | Releasing apparatus for whole type fireproof door |
| KR200331691Y1 (en) * | 2003-08-13 | 2003-11-01 | 김진학 | Door closer apparatus for the fire prevention door |
| KR20040072159A (en) * | 2003-02-10 | 2004-08-18 | 유규식 | Self-closing device for fire door |
| CN201241556Y (en) * | 2008-07-01 | 2009-05-20 | 陈宇楠 | Automatic door closing controller of anti-fire door |
| WO2010062025A1 (en) * | 2008-11-27 | 2010-06-03 | Moon Hong Sik | Separate-type fire door closing apparatus for a door check |
| CN203729734U (en) * | 2013-11-28 | 2014-07-23 | 卜红枚 | Positioning supporting rod of electromagnetic release door closer |
| CN203729780U (en) * | 2014-03-05 | 2014-07-23 | 昆山毅达科技电子有限公司 | Electrically-controlled rail type door closer |
| KR101453211B1 (en) * | 2013-10-11 | 2014-10-22 | 오맹수 | A fire door automatic movement closing equipment |
| CN204326805U (en) * | 2014-12-18 | 2015-05-13 | 深圳市中天明科技有限公司 | The door closer of opening is in for monitoring labeled door |
| CN105064855A (en) * | 2015-08-06 | 2015-11-18 | 苏州市富尔达科技股份有限公司 | Automatic door closing device for fire |
| CN105064854A (en) * | 2015-07-16 | 2015-11-18 | 苏州市富尔达科技股份有限公司 | Automatic fire disaster door-closing device |
| KR101678144B1 (en) * | 2016-07-07 | 2016-11-21 | 주식회사 화창기업 | Automatic Closing Device for Fireproof Door with Dual Sliding Member |
| WO2017101732A1 (en) * | 2015-12-16 | 2017-06-22 | 瓯宝安防科技股份有限公司 | Electromagnetic release door closer |
| CN206337966U (en) * | 2016-12-30 | 2017-07-18 | 郑州金特莱电子有限公司 | Fireproof door closer |
| KR200484451Y1 (en) * | 2016-06-28 | 2017-09-07 | 김동석 | Fire door automatic closing device |
| KR20180012420A (en) * | 2016-07-27 | 2018-02-06 | 이재수 | Inner gate fixed device |
| CN208380380U (en) * | 2018-05-18 | 2019-01-15 | 郑州金特莱电子有限公司 | A kind of rectilinear monitoring door closer |
-
2018
- 2018-05-18 CN CN201810477716.9A patent/CN108798342B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2102984U (en) * | 1991-11-04 | 1992-04-29 | 董士聪 | Releasing apparatus for whole type fireproof door |
| KR20040072159A (en) * | 2003-02-10 | 2004-08-18 | 유규식 | Self-closing device for fire door |
| KR200331691Y1 (en) * | 2003-08-13 | 2003-11-01 | 김진학 | Door closer apparatus for the fire prevention door |
| CN201241556Y (en) * | 2008-07-01 | 2009-05-20 | 陈宇楠 | Automatic door closing controller of anti-fire door |
| WO2010062025A1 (en) * | 2008-11-27 | 2010-06-03 | Moon Hong Sik | Separate-type fire door closing apparatus for a door check |
| KR101453211B1 (en) * | 2013-10-11 | 2014-10-22 | 오맹수 | A fire door automatic movement closing equipment |
| CN203729734U (en) * | 2013-11-28 | 2014-07-23 | 卜红枚 | Positioning supporting rod of electromagnetic release door closer |
| CN203729780U (en) * | 2014-03-05 | 2014-07-23 | 昆山毅达科技电子有限公司 | Electrically-controlled rail type door closer |
| CN204326805U (en) * | 2014-12-18 | 2015-05-13 | 深圳市中天明科技有限公司 | The door closer of opening is in for monitoring labeled door |
| CN105064854A (en) * | 2015-07-16 | 2015-11-18 | 苏州市富尔达科技股份有限公司 | Automatic fire disaster door-closing device |
| CN105064855A (en) * | 2015-08-06 | 2015-11-18 | 苏州市富尔达科技股份有限公司 | Automatic door closing device for fire |
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| KR200484451Y1 (en) * | 2016-06-28 | 2017-09-07 | 김동석 | Fire door automatic closing device |
| KR101678144B1 (en) * | 2016-07-07 | 2016-11-21 | 주식회사 화창기업 | Automatic Closing Device for Fireproof Door with Dual Sliding Member |
| KR20180012420A (en) * | 2016-07-27 | 2018-02-06 | 이재수 | Inner gate fixed device |
| CN206337966U (en) * | 2016-12-30 | 2017-07-18 | 郑州金特莱电子有限公司 | Fireproof door closer |
| CN208380380U (en) * | 2018-05-18 | 2019-01-15 | 郑州金特莱电子有限公司 | A kind of rectilinear monitoring door closer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108798342A (en) | 2018-11-13 |
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