CN107780732B - Linkage door closer - Google Patents
Linkage door closer Download PDFInfo
- Publication number
- CN107780732B CN107780732B CN201711235437.3A CN201711235437A CN107780732B CN 107780732 B CN107780732 B CN 107780732B CN 201711235437 A CN201711235437 A CN 201711235437A CN 107780732 B CN107780732 B CN 107780732B
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- CN
- China
- Prior art keywords
- switch
- guide rail
- limiting device
- limiting
- door closer
- 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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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
- E05C17/20—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod sliding through a guide
- E05C17/22—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod sliding through a guide with braking, clamping or securing means in the guide
Abstract
The invention discloses a linkage door closer which comprises a first guide rail and a second guide rail which are communicated with each other, a sliding block which can be arranged in the first guide rail in a sliding way, and an electric limiting device which can be arranged in the second guide rail in a sliding way and is used for preventing the sliding block from moving. The linkage module further comprises a first switch connected in series with the limiting device and a temperature-sensing glass ball which is abutted against the first switch to keep the first switch in a closed state. When the ambient temperature is higher than the preset temperature of the temperature-sensing glass ball, the temperature-sensing glass ball is broken, and the first switch is disconnected by losing conflict, so that the limiting device is powered off, and the limiting effect of the lost sliding block is achieved. According to the linkage door closer disclosed by the invention, the power supply and the power failure of the electromagnetic coil are controlled in a mode of matching the tact switch with the temperature-sensing glass ball, so that the reaction of the linkage door closer is more sensitive; secondly, the conducting plate fixed on the inner wall of the guide rail is used for replacing the original cable to connect the limiting component, so that the linkage door closer works more stably.
Description
Technical Field
The invention relates to a door closer, in particular to a linkage door closer with a tact switch.
Background
The fire door is used for maintaining the fire-resistant integrity of a fire passage and providing an escape way, and along with the development of security technology, the fire door is a normally open type fire door which can be closed in time in order to facilitate the passing of users, obtain ventilation, lighting and the like and also in the case of dangerous conditions such as fire and the like.
At present, the existing linkage door closer generally adopts a mode of setting a temperature sensor on a linkage module to detect the external temperature, and when the external temperature is greater than a preset value of the temperature sensor, the linkage module is automatically powered off, so that the limiting device loses the limiting effect on the sliding block. The linkage door closer is controlled to be closed by adopting the mode of the temperature sensor, and the linkage door closer has a complex structure and has higher quality requirement on the temperature sensor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a linkage door closer which is simple in structure and high in sensitivity.
In order to achieve the above purpose, the invention adopts the following technical scheme: the linkage door closer comprises a linkage module, a door closing module and a rocker arm, wherein two ends of the rocker arm are respectively connected with the linkage module and the door closing module towards a pivot, the linkage module comprises a first guide rail and a second guide rail which are communicated with each other, a sliding block which can be arranged in the first guide rail in a sliding manner, and an electric limiting device which can be arranged in the second guide rail in a sliding manner and is used for preventing the sliding block from moving, and when the electric limiting device is powered on, the limiting device can limit the sliding block from moving; when the limiting device is powered off, the limiting device loses the limiting effect on the sliding block; the linkage module further comprises a control unit capable of controlling the limiting device to be powered on or powered off, the control unit comprises a first switch connected in series with the limiting device and a temperature-sensing glass ball which is abutted against the first switch to enable the first switch to keep a closed and conducting state, when the ambient temperature is higher than the preset temperature of the temperature-sensing glass ball, the temperature-sensing glass ball is broken, so that the first switch is broken and disconnected due to the fact that the first switch is abutted against, and the limiting device is powered off, so that limiting effect on the sliding block is lost.
Preferably, the first switch is a tact switch.
Preferably, the control unit further comprises a first reed pipe connected in series with the first switch and a magnet arranged on the sliding block, and when the magnet is close to the first reed pipe, the first reed pipe is closed to enable the limiting device to be electrified; when the magnet is far away from the first reed pipe, the first reed pipe resets, so that the limiting device is powered off.
Further, the first reed switch is fixed on the limiting device.
Further, the control unit further comprises a conducting strip extending along the length direction of the second guide rail and arranged on the inner wall of the second guide rail, wherein the conducting strip is connected with the first reed switch in series, so that the first switch, the conducting strip, the first reed switch and the limiting device are connected in series.
As an embodiment, the conductive strip is fixed to a side wall in the second guide rail.
Still further, the control unit further comprises a manual switch connected in series with the first switch, so that the manual switch, the first switch, the conducting strip, the first reed switch and the limiting device are connected in series.
Further, the control unit further comprises a feedback device arranged in the second guide rail, the feedback device comprises a second reed pipe and a processor connected with the second reed pipe in series, when the linkage door closer is in a door closing state, the magnet moves to the position of the second reed pipe and enables the second reed pipe to be in a closing state, and the processor sends or displays information that the door is closed.
Preferably, the limiting device comprises a positioning block which can be slidably arranged in the second guide rail, an electromagnetic coil which is arranged on the positioning block, a limiting column which can be movably arranged on the positioning block and one end of which is positioned in the first guide rail, a suction plate which is arranged on the positioning block and can be abutted against the other end of the limiting column, and a spring which is arranged between the limiting column and the suction plate, wherein the electromagnetic coil is connected in series with the first reed switch, and when the electromagnetic coil is powered on, the electromagnetic coil adsorbs the suction plate to enable the suction plate to squeeze the limiting column to limit the sliding block; when the electromagnetic coil is powered off, the limiting column loses pressure and is in a natural state, and the limiting function on the sliding block is lost.
Further, the end part of the limit post in the first guide rail is obliquely arranged from the middle to two sides to form a first inclined plane and a second inclined plane.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the linkage door closer disclosed by the invention, the power supply and the power failure of the electromagnetic coil are controlled in a mode of matching the tact switch with the temperature-sensing glass ball, so that the reaction of the linkage door closer is more sensitive; secondly, the conducting plate fixed on the inner wall of the guide rail is used for replacing the original cable to connect the limiting component, so that the danger that the cable is damaged due to repeated winding and unwinding of the cable caused by frequent movement of the limiting device is avoided, and the linkage door closer works more stably.
Drawings
FIG. 1 is a schematic diagram of the linkage door closer of the present invention;
fig. 2 is a schematic structural view of the limiting device in the linkage door closer of the present invention when the limiting device limits the sliding block.
Wherein: 1. a linkage module; 2. a door closing module; 3. a rocker arm; 4. a first guide rail; 5. a second guide rail; 6. a slide block; 7. a limiting device; 71. a positioning block; 72. an electromagnetic coil; 73. a limit column; 74. a suction plate; 75. a spring; 8. a control unit; 9. a first switch; 10. a temperature-sensing glass ball; 11. the first reed switch; 12. a magnet; 13. a conductive strip; 14. a manual switch; 15. a feedback device; 151. and the second reed switch.
Detailed Description
The technical scheme of the invention is further described below with reference to the attached drawings and specific embodiments.
Referring to fig. 1 and 2, a linkage door closer comprises a linkage module 1, a door closing module 2 and a rocker arm 3 with two ends respectively connected with the linkage module 1 and the door closing module 2 in a pivot mode. The linkage module 1 includes a first rail 4 and a second rail 5 that are in communication with each other, a slider 6 slidably disposed within the first rail 4, and an electric stopper 7 slidably disposed within the second rail 5 for preventing movement of the slider 6. When the electric limiting device 7 is powered on, the limiting device 7 can limit the sliding block 6 to move; when the limiting device 7 is powered off, the limiting device 7 loses the limiting effect on the sliding block 6. Preferably, the first guide rail 4 and the second guide rail 5 are arranged parallel to each other.
The linkage module 1 further comprises a control unit 8 capable of controlling the stop device 7 to be powered on or powered off. The control unit 8 comprises a first switch 9 connected in series with the limiting device 7 and a temperature-sensitive glass ball 10 which is abutted against the first switch 9 and keeps the first switch 9 in a closed and conductive state. When the ambient temperature is higher than the preset temperature of the temperature-sensing glass ball 10, the temperature-sensing glass ball 10 is broken, so that the first switch 9 is disconnected by losing the interference, and the limiting device 7 is powered off, so that the limiting effect on the sliding block 6 is lost. Preferably, the first switch 9 is a tact switch, and when the temperature sensing glass ball 10 is abutted against the tact switch, the tact switch is in a closed and conductive state; when the temperature-sensing glass ball 10 is broken and the tact switch loses conflict, the tact switch is in an off state.
The control unit 8 further comprises a first reed switch 11 connected in series with the first switch 9, and a magnet 12 provided on the slider 6. When the magnet 12 is close to the first reed pipe 11, the first reed pipe 11 is closed so that the limiting device 7 is powered on; when the magnet 12 is far away from the first reed pipe 12, the first reed pipe 11 is reset, so that the limiting device 7 is powered off. Preferably, the first reed switch 11 is fixed on the limiting device 7, so that the limiting device 7 can limit the sliding block 6 when the sliding block 6 moves to the corresponding position on the limiting device 7.
The control unit 8 further comprises a conductive strip 13 extending along the length of the second rail 5 and provided on the inner wall of the second rail 5. The conducting strip 13 is connected with the first reed switch 11 in series, so that the first switch 9, the conducting strip 13, the first reed switch 11 and the limiting device 7 are connected in series. When any one of the elements is in the off state, the limiting device 7 cannot be powered. Preferably, the conductive strip 13 is fixed to a side wall inside the second rail 5.
In the process of using the linkage door closer, the opening amplitude of the door can be adjusted by adjusting the position of the limiting device 7 in the second guide rail 5. In the prior art, the cable is generally used for conducting electricity to the limiting device 7, but if the limiting device 7 moves frequently, the cable is often rolled up to wear or break, so that the stability of the linkage door closer is affected. Therefore, the conducting strip 13 fixed on the inner wall of the second guide rail 5 is adopted to conduct electricity to the limiting device 7, so that the danger of damage caused by repeated winding and unwinding of the cable due to frequent movement of the limiting device 7 can be avoided, and the linkage door closer works more stably.
The control unit 8 further comprises a manual switch 14 connected in series with the first switch 9, such that the manual switch 14, the first switch 9, the conductive strip 13, the first reed switch 11, and the limiting device 7 are connected in series. When any one of the elements is in the off state, the limiting device 7 cannot be powered. Under normal use condition, the limiting device 7 forms a limit to the sliding block 6, so that when the door is in an open state, and when the door needs to be closed, the manual switch 14 can be closed, so that the limiting device 7 loses power and the limiting effect to the sliding block 6 is lost.
The control unit 8 further comprises feedback means 15 provided in the second rail 5. The feedback device 15 comprises a second reed switch 151 and a processor connected with the second reed switch 151 in series. When the linkage door closer is in a door closing state, the magnet 12 moves to the position of the second reed pipe 151, the second reed pipe 151 is in a closing state, and the processor sends or displays the information that the door is closed.
The stopper 7 includes a positioning block 71 slidably provided in the second guide rail 5, an electromagnetic coil 72 provided on the positioning block 71, a stopper post 73 movably provided on the positioning block 71 and having one end portion positioned in the first guide rail 4, a suction plate 74 provided on the positioning block 71 and capable of abutting against the other end portion of the stopper post 73, and a spring 75 provided between the stopper post 73 and the suction plate 74. The electromagnetic coil 72 is connected in series with the first reed pipe 11, when the electromagnetic coil 72 is powered on, the electromagnetic coil 72 adsorbs the suction plate 74 to enable the suction plate 74 to press the limiting column 73 to limit the sliding block 6; when the electromagnetic coil 72 is powered off, the limiting post 73 loses pressure and is in a natural state, and the limiting effect on the sliding block 6 is lost. Preferably, the end part of the limiting post 73 in the first guide rail 4 is obliquely arranged from the middle to two sides to form a first inclined plane and a second inclined plane, so that the limiting post 73 is in a natural state under the condition that the electromagnetic coil 72 is powered off, and when the sliding block 6 slides in the first guide rail 4, the limiting post 73 can be easily pushed back into the second guide rail 5.
Preferably, as shown in fig. 2, when the magnet 12 is opposite to the first reed switch 11, the limiting device 7 is powered, and the rear end of the slider 6 abuts against the inclined surface of the limiting post 73. That is, the distance from the magnet 12 to the rear end portion of the slider 6 is equal to the distance from the reed switch 11 to the stopper 73.
In summary, in this embodiment, the linkage door closer has two use states:
1. under the safe state, the door closing module 2 can be pushed by adopting a manual mode, the door closing module 2 drives the rocker arm 3 to move, the rocker arm 3 drives the sliding block 6 to move along the length direction of the first guide rail 4 until the magnet 12 on the sliding block 6 is positioned near the first reed pipe 11, the first reed pipe 11 is closed and electrified, the electromagnetic coil 72 is electrified to generate magnetic force to adsorb the suction plate 74, the suction plate 74 extrudes the spring 75 and enables the spring 75 to abut against the limiting column 73 to enable the spring 75 to extend into the first guide rail 4, at the moment, the inclined surface of the end part of the limiting column 10 is in contact with the sliding block 6 to limit the sliding block 6, and the fireproof door is in the door opening state. When the fireproof door needs to be closed, the manual switch 14 is closed in a manual mode, so that the electromagnetic coil 14 is powered off, after the electromagnetic coil 14 loses magnetic force, the spring 75 drives the suction plate 74 to reset, the limiting column 73 is in a natural state, the sliding block 6 pushes the limiting column 73 back into the second guide rail 5, and therefore the limiting column 73 loses the limiting effect on the sliding block 6, and the sliding block 6 can slide along the first guide rail 4 until the fireproof door is closed. After the fireproof door is closed, the magnet 12 on the sliding block 6 is opposite to the second reed pipe 151 to enable the second reed pipe to be closed, the feedback device 15 is powered, and the processor sends or displays the information that the door is closed.
2. In a dangerous state (in a fire disaster), when the temperature-sensing glass ball 10 is broken along with the gradual rise of the ambient temperature, the electromagnetic coil 72 loses magnetic force after losing electricity, the spring 75 drives the suction plate 74 to reset, the limiting column 73 is in a natural state, the sliding block 6 pushes the limiting column 73 back into the second guide rail 5, so that the limiting column 73 loses the limiting effect on the sliding block 6, and the sliding block 6 can slide along the first guide rail 4 until the fireproof door is closed. After the fireproof door is closed, the magnet 12 on the sliding block 6 is opposite to the second reed pipe 151 to enable the second reed pipe to be closed, the feedback device 15 is powered, and the processor sends or displays the information that the door is closed.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (7)
1. The linkage door closer comprises a linkage module, a door closing module and a rocker arm, wherein two ends of the rocker arm are respectively connected with the linkage module and the door closing module towards a pivot, the linkage module comprises a first guide rail and a second guide rail which are communicated with each other, a sliding block which can be arranged in the first guide rail in a sliding manner, and a limiting device which can be arranged in the second guide rail in a sliding manner and is used for preventing the sliding block from moving, and when the limiting device is powered on, the limiting device can limit the sliding block from moving; when the limiting device is powered off, the limiting device loses the limiting effect on the sliding block; the method is characterized in that:
the linkage module further comprises a control unit capable of controlling the limiting device to be powered on or powered off, the control unit comprises a first switch connected in series with the limiting device and a temperature-sensing glass ball which is abutted against the first switch to enable the first switch to be kept in a closed and conducting state, when the ambient temperature is higher than the preset temperature of the temperature-sensing glass ball, the temperature-sensing glass ball is broken, so that the first switch is broken and disconnected due to the fact that the first switch is abutted against, and the limiting device is powered off, so that the limiting effect on the sliding block is lost;
the control unit further comprises a first reed pipe connected in series with the first switch and a magnet arranged on the sliding block, when the magnet is close to the first reed pipe, the first reed pipe is closed to enable the limiting device to be powered, and when the magnet is far away from the first reed pipe, the first reed pipe is reset to enable the limiting device to be powered off;
the control unit further comprises a conducting strip which extends along the length direction of the second guide rail and is arranged on the inner wall of the second guide rail, wherein the conducting strip is connected with the first reed switch in series, so that the first switch, the conducting strip, the first reed switch and the limiting device are connected in series, and the conducting strip is fixed on the side wall in the second guide rail.
2. The linked door closer of claim 1 wherein: the first switch is a tact switch.
3. The linked door closer of claim 1 wherein: the first reed switch is fixed on the limiting device.
4. The linked door closer of claim 1 wherein: the control unit further comprises a manual switch connected with the first switch in series, so that the manual switch, the first switch, the conducting strip, the first reed switch and the limiting device are connected in series.
5. The linked door closer of claim 1 wherein: the control unit also comprises a feedback device arranged in the second guide rail, the feedback device comprises a second reed pipe and a processor connected with the second reed pipe in series, when the linkage door closer is in a door closing state, the magnet moves to the position of the second reed pipe and enables the second reed pipe to be in a closing state, and the processor sends or displays information that the door is closed.
6. A linked door closer according to any one of claims 1 to 5, wherein: the limiting device comprises a positioning block which can be arranged in the second guide rail in a sliding manner, an electromagnetic coil which is arranged on the positioning block, a limiting column which can be movably arranged on the positioning block and one end part of which is positioned in the first guide rail, a suction plate which is arranged on the positioning block and can be abutted against the other end part of the limiting column, and a spring which is arranged between the limiting column and the suction plate, wherein the electromagnetic coil is connected in series with the first reed switch; when the electromagnetic coil is powered off, the limiting column loses pressure and is in a natural state, and the limiting function on the sliding block is lost.
7. The linked door closer of claim 6 wherein: the end part of the limiting column in the first guide rail is obliquely arranged from the middle to two sides to form a first inclined plane and a second inclined plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711235437.3A CN107780732B (en) | 2017-11-30 | 2017-11-30 | Linkage door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711235437.3A CN107780732B (en) | 2017-11-30 | 2017-11-30 | Linkage door closer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107780732A CN107780732A (en) | 2018-03-09 |
| CN107780732B true CN107780732B (en) | 2023-08-15 |
Family
ID=61429669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711235437.3A Active CN107780732B (en) | 2017-11-30 | 2017-11-30 | Linkage door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107780732B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075384U (en) * | 1990-05-20 | 1991-04-17 | 李雁 | Fuse with microswitch |
| DE19810203C1 (en) * | 1998-03-10 | 1999-04-22 | Ludwig Stockinger | Holder for securing and closing a fire protection door |
| CN202731661U (en) * | 2012-08-30 | 2013-02-13 | 陈沃林 | Magnetic type floor spring fireproof door |
| CN204513290U (en) * | 2015-04-15 | 2015-07-29 | 伍必胜 | Portable rail connecting structure |
| CN104948032A (en) * | 2015-07-07 | 2015-09-30 | 广州市禹成消防科技有限公司 | Power-driven door closer capable of monitoring fireproof door state |
| WO2015180769A1 (en) * | 2014-05-28 | 2015-12-03 | Abb Technology Ltd | A device and a method for controlling a magnetic door holder, and a magnetic door holder |
| CN206458219U (en) * | 2017-02-13 | 2017-09-01 | 池仁记 | One kind fire prevention door linkage door closer |
| CN207499654U (en) * | 2017-11-30 | 2018-06-15 | 苏州市富尔达科技股份有限公司 | A kind of linkage door closer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017127726A1 (en) * | 2016-01-20 | 2017-07-27 | Maher Robert Michael | Door holding device and safety system |
-
2017
- 2017-11-30 CN CN201711235437.3A patent/CN107780732B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075384U (en) * | 1990-05-20 | 1991-04-17 | 李雁 | Fuse with microswitch |
| DE19810203C1 (en) * | 1998-03-10 | 1999-04-22 | Ludwig Stockinger | Holder for securing and closing a fire protection door |
| CN202731661U (en) * | 2012-08-30 | 2013-02-13 | 陈沃林 | Magnetic type floor spring fireproof door |
| WO2015180769A1 (en) * | 2014-05-28 | 2015-12-03 | Abb Technology Ltd | A device and a method for controlling a magnetic door holder, and a magnetic door holder |
| CN204513290U (en) * | 2015-04-15 | 2015-07-29 | 伍必胜 | Portable rail connecting structure |
| CN104948032A (en) * | 2015-07-07 | 2015-09-30 | 广州市禹成消防科技有限公司 | Power-driven door closer capable of monitoring fireproof door state |
| CN206458219U (en) * | 2017-02-13 | 2017-09-01 | 池仁记 | One kind fire prevention door linkage door closer |
| CN207499654U (en) * | 2017-11-30 | 2018-06-15 | 苏州市富尔达科技股份有限公司 | A kind of linkage door closer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107780732A (en) | 2018-03-09 |
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