CN104895440A - Electric control rail type door closer - Google Patents
Electric control rail type door closer Download PDFInfo
- Publication number
- CN104895440A CN104895440A CN201410078370.7A CN201410078370A CN104895440A CN 104895440 A CN104895440 A CN 104895440A CN 201410078370 A CN201410078370 A CN 201410078370A CN 104895440 A CN104895440 A CN 104895440A
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- making body
- electromagnet
- door closer
- door
- button
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Abstract
The invention discloses an electric control rail type door closer. The two ends of a connecting rod of a door closer unit are respectively hinged to a door bow machine and a slide block unit; a rail unit comprises a rail, an electromagnet, an ejecting body, an ejecting button, first and second induction devices and a control system; a slide way having an opening is formed in the side wall of the rail; the ejecting body hinged into the rail rotates to drive the ejecting button to extend into or retreat from the slide way; the electromagnet in the rail can magnetically absorb the ejecting body to keep the ejecting button extending into the slide way; a slide block unit can slide along the slide way; the ejecting button extending into the slide way can stop the slide block unit sliding; the first and second induction devices can respectively induce two sliding positions of the slide block unit and send signals to the control system; the control system controls the electrification or the power failure of the electromagnet; and a delay device of the control system can delay the electrification of the electromagnet according to the signals sent by the second induction device. In door closing, the slide block can slide to close a door by using a little force; and even if the a door sheet is pressed by high wind, the door can be closed easily.
Description
Technical field
The present invention relates to a kind of door lock, particularly the automatically controlled rail mounted door closer of one.
Background technology
Normally closed labeled door brings many use obstacles such as inconvenience is current, unfavorable ventilation, and the artificial damage that causes because of frequent switch of normally closed type labeled door, brings regular maintenance simultaneously; Fire department more notices that many normally closed labeled doors are forced to back down and block maintenance with thing often to open by artificial, can not close in time thus produce great potential safety hazard when fire occurs.Labeled door open in usual should be closed to block smog diffusion in time and cut off the condition of a fire and be spread when breaking out of fire, and conventional fireproof door closer only has normally closed function and can not be controlled by fire-fighting linkage system.There are problems in current existing fire door control device of often opening, this series products belongs to " power transmission is closed the door " type as electromagnetic trip release, door closer etc. more, this series products does not meet fire protection rule requirement: often cut off power supply during breaking out of fire, may power transmission not close the door again, hidden fire-fighting danger is huge, and many regional fire departments prohibite use.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of automatically controlled rail mounted door closer, this automatically controlled rail mounted door closer structure is simple, can arbitrarily open the door under normal circumstances, make be in normally open, when run into fire condition close door-plate time, door-plate and doorframe can automatic blockings, guarantee use safety.
The present invention in order to the technical scheme solving its technical problem and adopt is: a kind of automatically controlled rail mounted door closer, comprises door closer group and track groups, wherein,
Door closer group comprises the closing device for door be fixed on door-plate, connecting rod and slide block group, connecting rod one end and closing device for door hinged, the connecting rod other end and slide block group hinged;
Track groups comprises the track be fixed on doorframe, electromagnet, top making body, top button, first and second induction installation and control system, track is formed with a slideway, electromagnet is fixedly arranged in track, top making body is articulated with in track, slideway sidewall is formed with an opening, top making body rotates and top button processed can be driven to stretch into or exit slideway inside along this opening, and electromagnet can make it be in keep pushing up button processed to stretch into the position of slideway inside by magnetic top making body;
The slide block group of door closer group can be slided along the slideway on track, the top button stretched in slideway can stop that slide block group is slided, first and second induction installation can respond to former and later two diverse locations that slide block group is slided along it to enabling direction respectively, first and second induction installation is messaging in control system respectively, control system controls electromagnet energising or power-off, also be provided with time-delay mechanism in control system, the signal lag that this time-delay mechanism can transmit according to the second induction installation is energized to electromagnet.
As a further improvement on the present invention, described top making body rotates the structure that top button processed can be driven to stretch into or exit slideway inside along this opening and is: push up that button processed is also hinged to be located in track, and top making body end is tight against the sidewall pushing up button processed slideway side dorsad.
As a further improvement on the present invention, described top making body end is provided with roller, and roller rolls along top button one sidewall processed.
As a further improvement on the present invention, the described electromagnet magnetic top making body moment direction that makes it act on to push up button processed is parallel with top button direction of rotation processed.
As a further improvement on the present invention, be also provided with an elastic component, there is angle with top button direction of rotation processed in the moment direction that this elastic component can make top making body act on and push up button processed, and the magnetic attraction of electromagnet to top making body is greater than the elastic force of elastic component for top making body.
As a further improvement on the present invention, described elastic component comprises a stage clip, and described stage clip one end is inserted in electromagnet end, and the stage clip other end can stretch out electromagnet end and be connected with top making body.
As a further improvement on the present invention, elastic component also comprises a torsion spring, described torsion spring is fixed on the jointed shaft of top making body, one end is tight against orbit sidewall, the torsion spring other end is tight against top making body sidewall, torsion spring makes top making body have the movement tendency rotated towards compression press spring direction, and the elastic force of stage clip is greater than the elastic force of torsion spring.
As a further improvement on the present invention, described top button processed is provided with catching step, and the proper backstop of this catching step is in the lateral wall of track sliding way, and push up button processed and form one section of plane structure towards top making body side, this plane structure can keep vertical with top making body.
As a further improvement on the present invention, described top button processed stretches into side in slideway and slideway inside wall forms triangular structure.
As a further improvement on the present invention, first and second induction installation described is microswitch, and the contact of microswitch just extend in slideway, and slide block be able to touch the contact of microswitch.
The invention has the beneficial effects as follows: the present invention is no power under normal circumstances, door-plate is in by closing device for door effect and closes door state, when needs door stays open state, pull the door open, after door pulls open certain angle, first induction installation senses slide block, and send signal to control system, door is made to stay open state to electromagnet energising, once occur that fire etc. needs the situation of door termination, when door-plate cuts out, only need directly to electromagnet power-off or continuation, door to be drawn to enabling direction by external switch, electromagnet meeting auto-breaking, door automatically reverts to and closes door state under closing device for door effect, spread to block smog diffusion and to cut off the condition of a fire, this door closer structure is simple, easy to operate, use safety, and need at closing time, because top making body is subject to elastic component effect, it slides in button side processed, top automatically, it is made to form angle with top button rotation direction processed, now only need very little power just can to close the door by sliding slider, even if there is strong wind to push down door-plate, also can easily close the door.
Accompanying drawing explanation
Fig. 1 is exploded view of the present invention;
Fig. 2 is stereogram of the present invention;
Fig. 3 is door opening state schematic diagram of the present invention;
Fig. 4 is door opening state front view of the present invention;
Fig. 5 is closing device for door action principle figure;
Fig. 6 is door opening state partial sectional view of the present invention;
Fig. 7 is the non-"on" position structure principle chart of the present invention;
Fig. 8 is the structure principle chart of the present invention when opening the door;
Fig. 9 is the structure principle chart that the present invention is in door opening state;
Figure 10 is first kind of way of the present invention structure principle chart at closing time;
Figure 11 is the second way of the present invention structure principle chart at closing time.
Detailed description of the invention
Embodiment: a kind of automatically controlled track 21 formula door closer, comprises door closer group 10 and 21 group 20, track, wherein,
Door closer group 10 comprises the closing device for door 41 be fixed on door-plate 40, connecting rod 42 and slide block group 18, connecting rod 42 one end and closing device for door 41 hinged, connecting rod 42 other end and slide block group 18 hinged;
Track comprises the track 21 be fixed on doorframe 30, electromagnet 13, top making body 15, top button 16 processed, first and second induction installation 17,19 and control system for 21 group 20, track 21 is formed with a slideway, electromagnet 13 is fixedly arranged in track 21, top making body 15 is articulated with in track 21, slideway sidewall is formed with an opening, top making body 15 rotates and top button 16 processed can be driven to stretch into or exit slideway inside along this opening, and electromagnet 13 can make it be in keep pushing up button 16 processed to stretch into the position of slideway inside by magnetic top making body 15;
The slide block group 18 of door closer group 10 can be slided along the slideway on track 21, the top button 16 stretched in slideway can stop that slide block group 18 is slided, first and second induction installation 17,19 can respond to former and later two diverse locations that slide block group 18 is slided along it to enabling direction respectively, first and second induction installation 17,19 is messaging in control system respectively, control system controls electromagnet 13 and is energized or power-off, also be provided with time-delay mechanism in control system, the signal lag that this time-delay mechanism can transmit according to the second induction installation is energized to electromagnet 13.
When not being energized, top making body 15 is by elastic component effect, top making body 15 is positioned at and pushes up inside button 16 normal direction contact point processed, top making body 15 acts on the moment direction of pushing up button 16 processed and has angle with top button 16 direction of rotation processed, push up that button 16 processed is stressed can form a moment in direction of rotation, slide block can move freely, during enabling, closing device for door 41 opens along with door-plate 40, closing device for door 41 opens appended connecting rod 42 and is with movable slider to pass through to push up button 16 processed, push up button 16 pressurized processed to retract, top making body 15 is first by the sensed device perception of induction region of the first induction installation, first induction installation transferring signals also sends control system to, control system is energized to electromagnet 13, electromagnet 13 is energized and produces magnetic field, top making body 15 is adsorbed in electromagnet 13 by magnetic fields, top making body 15 makes top button 16 keep the state stretched in slideway, slide block cannot slide to direction of closing the door, form blocking, door-plate 40 keeps door opening state, generally to close the door mode, by controller tripping magnet 13 power supply, magnetic field dissipate, unlocking state, pushes up that button 16 processed is stressed can rotate, and slide block also can move freely, closing device for door 41 starts effect, and door-plate 40 automatically reverts to pass door state, is also applicable to external power source outage condition with upper type, the second is generally closed the door mode, door-plate 40 is continued to enabling direction firmly, slide block is by the second induction installation transferring signals and send control system to, control system tripping magnet 13 power supply, and the time-delay mechanism in control system keeps this dissengaged positions certain hour, and in this period, door closer is in unlocking state, and slide block can move freely, now closing device for door 41 starts effect, and door-plate 40 automatically reverts to pass door state.
Described top making body 15 rotates the structure that top button 16 processed can be driven to stretch into or exit slideway inside along this opening: push up that button 16 processed is also hinged to be located in track 21, and top making body 15 end is tight against the sidewall pushing up button 16 processed slideway side dorsad.
Described top making body 15 end is provided with roller 152, and roller 152 rolls along top button 16 1 sidewall processed, reduces the frictional force between top making body 15 and top button 16 processed, ensures that top making body 15 rotates smoothly.
The moment direction that described electromagnet 13 magnetic top making body 15 makes it act on and pushes up button 16 processed is parallel with top button 16 direction of rotation processed.
Also be provided with an elastic component, there is angle with top button 16 direction of rotation processed in the moment direction that this elastic component can make top making body 15 act on and push up button 16 processed, and the magnetic attraction of electromagnet 13 pairs of top making bodies 15 is greater than the elastic force of elastic component for top making body 15.
Described elastic component comprises a stage clip 14, and described stage clip 14 one end is inserted in electromagnet 13 end, and stage clip 14 other end can stretch out electromagnet 13 end and be connected with top making body 15.
Elastic component also comprises a torsion spring 151, described torsion spring 151 is fixed on the jointed shaft of top making body 15, torsion spring 151 one end is tight against track 21 sidewall, torsion spring 151 other end is tight against top making body 15 sidewall, torsion spring 151 makes top making body 15 have the movement tendency rotated towards compression press spring 14 direction, and the elastic force of stage clip 14 is greater than the elastic force of torsion spring 151, torsion spring 151 and stage clip 14 make a concerted effort to be exactly the elastic force of elastic component, and this kind of structure can keep top making body 15 to remain a stable state.
Described top button 16 processed is provided with catching step, and the proper backstop of this catching step is in the lateral wall of track 21 sliding way, and push up button 16 processed and form one section of plane structure towards top making body 15 side, this plane structure can keep vertical with top making body 15.
Described top button 16 processed stretches into side in slideway and forms triangular structure with slideway inside wall, and slide block is slided smoothly, avoids slide block and push up button 16 processed stuck.
First and second induction installation 17,19 described is microswitch, the contact of microswitch just extend in slideway, slide block be able to touch the contact of microswitch, realizing the perception to slide block group 18 by the contact of touching microswitch, can certainly be infrared inductor or distance-sensor etc.
Claims (10)
1. an automatically controlled rail mounted door closer, is characterized in that: comprise door closer group (10) and track groups (20), wherein,
Door closer group comprises the closing device for door (41) be fixed on door-plate (40), connecting rod (42) and slide block group (18), connecting rod one end and closing device for door hinged, the connecting rod other end and slide block group hinged;
Track groups comprises the track (21) be fixed on doorframe (30), electromagnet (13), top making body (15), top button processed (16), first and second induction installation (17,19) and control system, track is formed with a slideway, electromagnet is fixedly arranged in track, top making body is articulated with in track, slideway sidewall is formed with an opening, top making body rotates and top button processed can be driven to stretch into or exit slideway inside along this opening, and electromagnet can make it be in keep pushing up button processed to stretch into the position of slideway inside by magnetic top making body;
The slide block group of door closer group can be slided along the slideway on track, the top button stretched in slideway can stop that slide block group is slided, first and second induction installation can respond to former and later two diverse locations that slide block group is slided along it to enabling direction respectively, first and second induction installation is messaging in control system respectively, control system controls electromagnet energising or power-off, also be provided with time-delay mechanism in control system, the signal lag that this time-delay mechanism can transmit according to the second induction installation is energized to electromagnet.
2. automatically controlled rail mounted door closer according to claim 1, it is characterized in that: described top making body rotates the structure that top button processed can be driven to stretch into or exit slideway inside along this opening and is: push up that button processed is also hinged to be located in track, top making body end is tight against the sidewall pushing up button processed slideway side dorsad.
3. automatically controlled rail mounted door closer according to claim 2, is characterized in that: described top making body end is provided with roller (152), and roller rolls along top button one sidewall processed.
4. automatically controlled rail mounted door closer according to claim 2, is characterized in that: the moment direction that described electromagnet magnetic top making body makes it act on and pushes up button processed is parallel with top button direction of rotation processed.
5. automatically controlled rail mounted door closer according to claim 4, it is characterized in that: be also provided with an elastic component, there is angle with top button direction of rotation processed in the moment direction that this elastic component can make top making body act on and push up button processed, and the magnetic attraction of electromagnet to top making body is greater than the elastic force of elastic component for top making body.
6. automatically controlled rail mounted door closer according to claim 5, it is characterized in that: described elastic component comprises a stage clip (14), described stage clip one end is inserted in electromagnet end, and the stage clip other end can stretch out electromagnet end and be connected with top making body.
7. automatically controlled rail mounted door closer according to claim 6, it is characterized in that: elastic component also comprises a torsion spring (151), described torsion spring is fixed on the jointed shaft of top making body, one end is tight against orbit sidewall, the torsion spring other end is tight against top making body sidewall, torsion spring makes top making body have the movement tendency rotated towards compression press spring direction, and the elastic force of stage clip is greater than the elastic force of torsion spring.
8. automatically controlled rail mounted door closer according to claim 4, it is characterized in that: described top button processed is provided with catching step, the proper backstop of this catching step is in the lateral wall of track sliding way, push up button processed and form one section of plane structure towards top making body side, this plane structure can keep vertical with top making body.
9. automatically controlled rail mounted door closer according to claim 8, is characterized in that: described top button processed stretches into side in slideway and slideway inside wall forms triangular structure.
10. automatically controlled rail mounted door closer according to claim 1, it is characterized in that: first and second induction installation described is microswitch, the contact of microswitch just extend in slideway, and slide block be able to touch the contact of microswitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078370.7A CN104895440A (en) | 2014-03-05 | 2014-03-05 | Electric control rail type door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078370.7A CN104895440A (en) | 2014-03-05 | 2014-03-05 | Electric control rail type door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104895440A true CN104895440A (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410078370.7A Pending CN104895440A (en) | 2014-03-05 | 2014-03-05 | Electric control rail type door closer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442978A (en) * | 2015-12-16 | 2016-03-30 | 瓯宝安防科技股份有限公司 | Electromagnetic releasing sliding rail rocker arm for door closer |
| CN105952303A (en) * | 2016-07-19 | 2016-09-21 | 广州六瑞消防科技有限公司 | Positioning and releasing device |
| CN107237565A (en) * | 2017-08-10 | 2017-10-10 | 广州六瑞消防科技有限公司 | A kind of door closer-holder and close door system |
| CN107255002A (en) * | 2017-08-10 | 2017-10-17 | 广州六瑞消防科技有限公司 | One kind closes door system |
| CN109025614A (en) * | 2018-08-16 | 2018-12-18 | 广州铸安机电设备有限公司 | Slide electric door closer |
| CN110242145A (en) * | 2019-07-11 | 2019-09-17 | 苏州市富尔达科技股份有限公司 | A kind of automatically controlled door closer |
| CN112854951A (en) * | 2021-01-11 | 2021-05-28 | 江苏荣夏安全科技有限公司 | Door closer sliding groove structure, explosion-proof door closer and normally-open fireproof door |
| TWI802033B (en) * | 2021-10-06 | 2023-05-11 | 一德金屬工業股份有限公司 | Easy-to-install door bow |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3806662A1 (en) * | 1987-03-05 | 1988-09-15 | Geze Grundstueck Beteiligung | Fixing device for a door provided with a door closer |
| CN201254932Y (en) * | 2008-06-05 | 2009-06-10 | 王俊哲 | Automatic releasing machine for sliding fire-proof door |
| CN202117519U (en) * | 2011-05-20 | 2012-01-18 | 东莞市华棱安防科技有限公司 | Normally-open fireproof door |
| EP2472041A2 (en) * | 2011-01-04 | 2012-07-04 | Assa Abloy Sicherheitstechnik GmbH | Mounting plate |
| CN102808561A (en) * | 2011-06-03 | 2012-12-05 | 北京石油化工学院 | Automatic window-opening limit device of electromagnet |
| 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 |
-
2014
- 2014-03-05 CN CN201410078370.7A patent/CN104895440A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3806662A1 (en) * | 1987-03-05 | 1988-09-15 | Geze Grundstueck Beteiligung | Fixing device for a door provided with a door closer |
| CN201254932Y (en) * | 2008-06-05 | 2009-06-10 | 王俊哲 | Automatic releasing machine for sliding fire-proof door |
| EP2472041A2 (en) * | 2011-01-04 | 2012-07-04 | Assa Abloy Sicherheitstechnik GmbH | Mounting plate |
| CN202117519U (en) * | 2011-05-20 | 2012-01-18 | 东莞市华棱安防科技有限公司 | Normally-open fireproof door |
| CN102808561A (en) * | 2011-06-03 | 2012-12-05 | 北京石油化工学院 | Automatic window-opening limit device of electromagnet |
| 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 |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10641020B2 (en) | 2015-12-16 | 2020-05-05 | Oubao Security Technology Co., Ltd. | Electromagnetic release door closer |
| WO2017101732A1 (en) * | 2015-12-16 | 2017-06-22 | 瓯宝安防科技股份有限公司 | Electromagnetic release door closer |
| CN105442978A (en) * | 2015-12-16 | 2016-03-30 | 瓯宝安防科技股份有限公司 | Electromagnetic releasing sliding rail rocker arm for door closer |
| CN105952303A (en) * | 2016-07-19 | 2016-09-21 | 广州六瑞消防科技有限公司 | Positioning and releasing device |
| CN105952303B (en) * | 2016-07-19 | 2018-02-16 | 广州六瑞消防科技有限公司 | One kind positioning and release device |
| CN107237565A (en) * | 2017-08-10 | 2017-10-10 | 广州六瑞消防科技有限公司 | A kind of door closer-holder and close door system |
| CN107255002A (en) * | 2017-08-10 | 2017-10-17 | 广州六瑞消防科技有限公司 | One kind closes door system |
| CN109025614A (en) * | 2018-08-16 | 2018-12-18 | 广州铸安机电设备有限公司 | Slide electric door closer |
| CN109025614B (en) * | 2018-08-16 | 2024-01-30 | 东莞市明成电子有限公司 | Sliding rail electric door closer |
| CN110242145A (en) * | 2019-07-11 | 2019-09-17 | 苏州市富尔达科技股份有限公司 | A kind of automatically controlled door closer |
| CN110242145B (en) * | 2019-07-11 | 2024-05-28 | 苏州市富尔达科技股份有限公司 | Electric control door closer |
| CN112854951A (en) * | 2021-01-11 | 2021-05-28 | 江苏荣夏安全科技有限公司 | Door closer sliding groove structure, explosion-proof door closer and normally-open fireproof door |
| CN112854951B (en) * | 2021-01-11 | 2022-05-17 | 江苏荣夏安全科技有限公司 | Door closer sliding groove structure, explosion-proof door closer and normally-open fireproof door |
| TWI802033B (en) * | 2021-10-06 | 2023-05-11 | 一德金屬工業股份有限公司 | Easy-to-install door bow |
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Effective date of abandoning: 20170503 |