CN212176889U - Prevent fire door electric door closer - Google Patents
Prevent fire door electric door closer Download PDFInfo
- Publication number
- CN212176889U CN212176889U CN202020465057.XU CN202020465057U CN212176889U CN 212176889 U CN212176889 U CN 212176889U CN 202020465057 U CN202020465057 U CN 202020465057U CN 212176889 U CN212176889 U CN 212176889U
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- door
- limiting
- closer
- feedback device
- electromagnet
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Abstract
The utility model discloses a prevent fire door electric door closer, including door closer, connecting rod and hydraulic means, the door closer is used for installing at the door frame top, and hydraulic means is used for installing on preventing fire door's door leaf, and the both ends of connecting rod are articulated with door closer and hydraulic means respectively, and the door closer includes door closer main part, slider, stop gear, controlling means, opens the door feedback device and closes the door feedback device. The sliding block is locked under the condition that the electromagnet is powered off, so that the control device is only ensured to have monitoring current when the fireproof door is in a normally open state, and the power consumption of the whole fireproof door electric door closer is reduced; in addition, the door opening feedback device is further arranged, when the fireproof door is opened, the door opening feedback device is triggered, the control device controls the electric door closer of the fireproof door to automatically reset so as to lock the fireproof door in a normally open state, manual operation is replaced by automatic reset, and faults caused by human factors, reset button damage and the like are avoided.
Description
Technical Field
The utility model relates to a fire safety equipment technical field, concretely relates to prevent fire door electric door closer.
Background
The utility model provides a prevent fire door electric door closer, makes to prevent that fire door keeps normally opening under the daily state, when the fire incident appears, makes to prevent through system control that fire door closes, keeps apart the flame source, prevents that intensity of a fire and dense cigarette from stretching adjacent fire prevention subregion.
The normally open fireproof door electric door closer mainly has two working states. In a daily state, a limiting mechanism arranged in the electric door closer of the fireproof door takes effect, so that the fireproof door is kept normally open; when fire alarm happens, the communication module of the fireproof door electric door closer receives a door closing signal of the system host, so that the limiting is invalid, the fireproof door is closed, and information is fed back to the system host after the fireproof door is closed in place.
At present, the existing fireproof door electric door closer in the market has the following problems or defects:
(1) need last the power supply under the fire door normal open state and keep spacing, the consumption is big, has increased system load.
(2) After the fire door is opened, the fire door needs to be manually reset to enable the limit to take effect, and automatic control cannot be realized.
Disclosure of Invention
The utility model provides a low power consumption, ability automatic re-setting prevent fire door electric door closer.
The embodiment provides an electric door closer for a fireproof door, which comprises a door closer, a connecting rod and a hydraulic device, wherein the door closer is arranged at the top of a door frame, the hydraulic device is arranged on a door leaf of the fireproof door, and two ends of the connecting rod are respectively hinged with the door closer and the hydraulic device;
the door closer comprises a door closer main body, a sliding block, a limiting mechanism, a control device, a door opening feedback device and a door closing feedback device, wherein the door closer main body is provided with a long strip-shaped sliding groove, the sliding block is slidably arranged in the sliding groove, and the limiting mechanism, the control device, the door opening feedback device and the door closing feedback device are respectively fixed in the sliding groove; the limiting mechanism comprises an electromagnet, a return spring and a limiting assembly, the electromagnet and the return spring are respectively connected with the limiting assembly, the limiting assembly is provided with a limiting part, and the sliding block is provided with a clamping part matched with the limiting part; when the electromagnet is in a power-off state and under the action of the reset spring, the clamping part of the sliding block is clamped with the limiting part of the limiting assembly to form locking; when the electromagnet is in a power-on state, the electromagnet drives the limiting assembly to swing, and the clamping portion of the sliding block is separated from the limiting portion of the limiting assembly to form unlocking; the door opening feedback device and the door closing feedback device are respectively arranged at two ends of the sliding chute, and a trigger switch of the door opening feedback device and a trigger switch of the door closing feedback device are both arranged on a sliding track of the sliding block; the control device is respectively electrically connected with the electromagnet, the door opening feedback device and the door closing feedback device, and is used for acquiring the trigger signals of the door opening feedback device and the door closing feedback device and controlling the on-off of the electromagnet.
Furthermore, the limiting assembly comprises a dowel bar and a limiting piece, the output end of the electromagnet is arranged along the length direction of the sliding chute, one end of the dowel bar is hinged with the output end of the electromagnet, the other end of the dowel bar is hinged with one end of the limiting piece, which is far away from the dowel bar, is hinged on the door closer main body, and a clamping groove is arranged at the hinged end of the limiting piece and is a limiting part of the limiting assembly; the clamping part of the sliding block is a raised buckle; the reset spring is connected with the limiting part, and the reset spring and the clamping groove are respectively positioned on two sides of the hinged position of the limiting part.
Furthermore, rollers for guiding the sliding block to slide in and slide out are arranged on two sides of the opening of the clamping groove.
Furthermore, stop gear still includes spacing support, and spacing support mounting is in the spout, and electro-magnet, reset spring and spacing subassembly are installed on spacing support.
Furthermore, end covers are arranged at two ends of the sliding groove and used for limiting the sliding stroke of the sliding block.
According to the fireproof door electric door closer of the embodiment, the sliding block is locked under the condition that the electromagnet is powered off, so that the fireproof door is normally opened, only the control device is ensured to have monitoring current, and the power consumption of the whole fireproof door electric door closer is reduced; in addition, the door opening feedback device is further arranged, when the fireproof door is opened, the door opening feedback device is triggered, the control device controls the electric door closer of the fireproof door to automatically reset so as to lock the fireproof door in a normally open state, manual operation is replaced by automatic reset, and faults caused by human factors, reset button damage and the like are avoided.
Drawings
FIG. 1 is a schematic diagram of an embodiment of an electric fire door closer;
FIG. 2 is an exploded view of the fire door electric closer of one embodiment;
FIG. 3 is an exploded view of a spacing mechanism in one embodiment;
FIG. 4 is an exploded view of the control device in one embodiment;
FIG. 5 is an exploded view of the door closing feedback device in one embodiment;
FIG. 6 is a schematic view of a locking state of the position limiting mechanism in one embodiment;
fig. 7 is a schematic view of an unlocked state of the limiting mechanism in an embodiment.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
This embodiment provides a prevent fire door electric door closer, this prevent fire door electric door closer low power dissipation, prevent that fire door normally open state down only needs provide minimum monitoring current, prevent fire door open moreover to appointed angle after spacing automatic effective, avoided the fault that human factor or reset button damage etc. arouse.
As shown in fig. 1 and 2, the electric fire door closer of the present embodiment mainly includes a door closer 10, a connecting rod 20 and a hydraulic device 30, the door closer 10 is installed on the top of a door frame through a screw, the hydraulic device 30 is installed on the upper end of a door leaf of a fire door through a screw, one end of the connecting rod 20 is hinged to a slider in the door closer 10, the other end of the connecting rod 20 is hinged to an output end of the hydraulic device 30, the hydraulic device 30 is a power source for opening and closing the fire door, and the hydraulic device 30 drives the fire door to close through the connecting rod.
The door closer 10 of the present embodiment includes a door closer main body 11, a slider 12, a limit mechanism 13, a control device 14, a door opening feedback device 15, and a door closing feedback device 16.
The door closer main body 11 is of a long strip structure, the door closer main body 11 is provided with a long strip sliding groove 111, end covers 112 are installed at two ends of the door closer main body 11, and the two end covers 112 seal two ends of the sliding groove 111. The slider 12 is installed in the spout 111, and the whole of slider 12 is bigger than the opening of spout 111 for slider 12 is spacing in spout 111, installs connecting portion on the slider 12, and connecting portion stretch out spout 111 and link 20's one end is articulated, and slider 12 can slide along the length direction of spout 111, and the end cover 112 of both sides has limited the slip stroke of slider 12. The surface of the slide block 12 facing the inside of the sliding groove 111 is provided with a clamping part which is a raised buckle 12 a.
The control device 14, the limiting mechanism 13 and the door closing feedback device 16 are sequentially installed in the sliding groove 111 side by side, the door opening feedback device 15 is installed on the limiting mechanism 13, the control device 14 is electrically connected with the door opening feedback device 15 through a spiral line 17, and the door closing feedback device 16 is electrically connected with the door opening feedback device 15 through a spiral line 18, so that the control device 14 can acquire a door opening trigger signal generated by the door opening feedback device 15 and a door closing trigger signal generated by the door closing feedback device 16.
As shown in fig. 3, the limiting mechanism 13 includes a limiting bracket 131, an electromagnet 132, a return spring 133 and a limiting component, the limiting bracket 131 is installed in the sliding groove 111 through a screw, the electromagnet 132, the return spring 133 and the limiting component are all installed on the limiting bracket 131, and the electromagnet 132, the return spring 133 and the limiting component are all located in the sliding groove 111. The electromagnet 132 is electrically connected to the door opening feedback device 15, so that the control device 14 can control the on/off of the electromagnet 132. The electromagnet 132 is a holding electromagnet, a permanent magnet is arranged inside the holding electromagnet, the output end of the electromagnet 132 is arranged along the length direction of the sliding groove 111, the limiting component comprises a dowel bar 134 and a limiting piece 135, one end of the dowel bar 134 is hinged to the output end of the electromagnet 132 through a rotating shaft, the other end of the dowel bar 134 is hinged to one end of the limiting piece 135, one end, far away from the dowel bar 134, of the limiting piece 135 is hinged to the limiting support 131 through a rotating shaft, a limiting portion is further arranged at one hinged end, the limiting portion is a clamping groove 135a, the clamping groove 135a is matched with the buckle 12a of the sliding block 12, and the buckle 12a can be clamped into the clamping groove 135a to form. The return spring 133 is installed on the limiting bracket 131, the return spring 133 is perpendicular to the length direction of the sliding groove 111, the return spring 133 is connected with the limiting member 135, and the return spring 133 and the clamping groove 135a are respectively located on two sides of the limiting member 135 hinged to the limiting bracket 131, so that the limiting member 135 can swing to form locking and unlocking.
In other embodiments, the limiting component is a swinging rod, the output end of the electromagnet 132 and the length direction of the sliding groove 111 form a certain included angle, and the electromagnet 132 can directly drive the swinging rod to swing to realize locking and unlocking.
In other embodiments, the limiting bracket 131 is integrated with the door closer body 11, that is, a corresponding mounting bracket is directly disposed in the sliding groove 111 of the door closer body 11.
In this embodiment, in order to facilitate the sliding of the slider 12 into and out of the slot 135a, the rollers are installed on two sides of the opening of the slot 135a, the rollers can guide the sliding of the slider 12, and the slope is arranged on the buckle 12a of the slider 12, so as to facilitate the sliding of the buckle 12a into and out.
As shown in fig. 4, in this embodiment, the control device 14 includes a first main board bracket 141, a second main board bracket 142 and a PCB main board 143, the first main board bracket 141 and the second main board bracket 142 are mounted in a snap-fit manner, the PCB main board 143 is mounted between the first main board bracket 141 and the second main board bracket 142, and the first main board bracket 141 and the second main board bracket 142 limit the degree of freedom of the PCB main board 143 along the length direction of the sliding slot 111. The terminals of the PCB main board 143 are used to connect the system power supply and the system host.
The door opening feedback device 15 and the door closing feedback device 16 have similar structures, and the present embodiment is described by taking the structure of the door closing feedback device 16 as an example.
As shown in fig. 5, the door closing feedback device 16 includes a door closing bracket 161, a door closing feedback switch 162 and a door closing PCB 163, wherein the door closing feedback switch 162 is fixed on the door closing PCB 163, the door closing PCB 163 is directly fastened in the door closing bracket 161 by screws, and the door closing PCB 163 is electrically connected to the door opening feedback device 15 by a spiral line 18. When the slider 12 slides to trigger the door-closing feedback switch 162, the door-closing PCB 163 generates a door-closing trigger signal. Similarly, when the slider 12 slides to the door opening feedback switch of the door opening feedback device 15, the door opening PCB inside the door opening feedback device 15 generates a door opening trigger signal.
The working principle of the fireproof door electric door closer of the embodiment is as follows:
in the daily state: the output end (movable iron core) of the electromagnet 132 moves in the door closing direction (rightward in the drawing), and the state is maintained by the internal permanent magnet, and the left end of the transmission lever 134 is restricted, and the swing of the stopper 135 is restricted. At this time, the hook 12a of the slider 12 is restricted by the engaging groove 135a of the stopper 135, and the slider 12 cannot slide in the door closing direction, and the fire door is kept normally open, as shown in fig. 6.
When a fire disaster is alarmed: after receiving the door closing signal of the system host, the control device 14 provides an actuating current to the electromagnet 132 through a capacitor (energy storage element) on the PCB board 143, the movable iron core of the electromagnet 132 actuates in the door opening direction, the transmission rod 134 pulls the limit member 135 towards the left, the limit member 135 swings in the counterclockwise direction, the engaging slot 135a of the limit member 135 is separated from the engaging slot 12a of the slider 12, the slider 12 can freely slide in the door closing direction, and when the slider 12 slides to the door closing feedback device 16 and presses the elastic piece of the door closing feedback switch 162, the control device 14 feeds back the door closing in-place signal to the system host, as shown in fig. 7.
When the fire door is reopened to a designated angle, the slider 12 presses the elastic piece on the door opening feedback switch of the door opening feedback device 15 to feed back information to the system host, the host gives an instruction, the capacitor on the control device 14 provides a reverse action current for the electromagnet 132, the movable iron core of the electromagnet 132 acts along the door closing direction, the limiting effect is automatically achieved, and the fire door can be kept normally open, as shown in fig. 6.
After the buckle 12a of the slider 12 slides through the slot 135a, the position-limiting member 135 is restored to the original position under the action of the return spring 133, so as to prevent the movable iron core of the electromagnet 132 from moving in place in the door-closing direction after the fire door is opened again.
In the electric door closer for the fire door provided by the embodiment, the sliding block 12 is locked under the condition that the electromagnet 132 is powered off, so that the control device 14 is only ensured to have monitoring current when the fire door is in a normally open state, and the power consumption of the whole electric door closer for the fire door is reduced; in addition, the door opening feedback device 15 is further arranged, when the fireproof door is opened, the door opening feedback device 15 is triggered, the control device 14 controls the electric door closer of the fireproof door to automatically reset to lock the fireproof door in a normally open state, manual operation is replaced by automatic reset, and faults caused by human factors, reset button damage and the like are avoided
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (5)
1. The electric door closer for the fireproof door is characterized by comprising a door closer, a connecting rod and a hydraulic device, wherein the door closer is arranged at the top of a door frame, the hydraulic device is arranged on a door leaf of the fireproof door, and two ends of the connecting rod are respectively hinged with the door closer and the hydraulic device;
the door closer comprises a door closer main body, a sliding block, a limiting mechanism, a control device, a door opening feedback device and a door closing feedback device, wherein the door closer main body is provided with a long strip-shaped sliding groove, the sliding block is slidably arranged in the sliding groove, and the limiting mechanism, the control device, the door opening feedback device and the door closing feedback device are respectively fixed in the sliding groove; the limiting mechanism comprises an electromagnet, a return spring and a limiting assembly, the electromagnet and the return spring are respectively connected with the limiting assembly, the limiting assembly is provided with a limiting part, and the sliding block is provided with a clamping part matched with the limiting part; the electromagnet is in a power-off state, and under the action of the reset spring, the clamping part of the sliding block is clamped with the limiting part of the limiting assembly to form locking; when the electromagnet is in a power-on state, the electromagnet drives the limiting assembly to swing, and the clamping portion of the sliding block is separated from the limiting portion of the limiting assembly to form unlocking; the door opening feedback device and the door closing feedback device are respectively arranged at two ends of the sliding chute, and a trigger switch of the door opening feedback device and a trigger switch of the door closing feedback device are both arranged on a sliding track of the sliding block; the control device is respectively electrically connected with the electromagnet, the door opening feedback device and the door closing feedback device, and is used for acquiring the trigger signals of the door opening feedback device and the door closing feedback device and controlling the on-off of the electromagnet.
2. The electric fire door closer according to claim 1, wherein the limiting component comprises a transmission rod and a limiting component, the output end of the electromagnet is arranged along the length direction of the sliding chute, one end of the transmission rod is hinged with the output end of the electromagnet, the other end of the transmission rod is hinged with one end of the limiting component, which is far away from the transmission rod, is hinged on the closer main body, and the hinged end of the limiting component is provided with a clamping groove, which is a limiting part of the limiting component; the clamping part of the sliding block is a raised buckle; the reset spring is connected with the limiting part, and the reset spring and the clamping groove are respectively positioned on two sides of the hinge of the limiting part.
3. The fire door electric closer of claim 2, wherein rollers for guiding the slider to slide in and out are provided at both sides of the opening of the catching groove.
4. The fire rated door electric closer of claim 3, wherein the stop mechanism further comprises a stop bracket mounted within the chute, the electromagnet, return spring and stop assembly being mounted on the stop bracket.
5. The fire door electric closer of claim 1, wherein end caps are provided at both ends of the sliding groove, the end caps being used to limit a sliding stroke of the slider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020465057.XU CN212176889U (en) | 2020-04-02 | 2020-04-02 | Prevent fire door electric door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020465057.XU CN212176889U (en) | 2020-04-02 | 2020-04-02 | Prevent fire door electric door closer |
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| Publication Number | Publication Date |
|---|---|
| CN212176889U true CN212176889U (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020465057.XU Active CN212176889U (en) | 2020-04-02 | 2020-04-02 | Prevent fire door electric door closer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112969310A (en) * | 2021-02-05 | 2021-06-15 | 四川恩巨实业有限公司 | Positioning and assembling jig for power adapter |
| CN113107300A (en) * | 2021-05-20 | 2021-07-13 | 深圳市泛海三江电子股份有限公司 | Automatic limiting unit of electric door closer |
| CN113309441A (en) * | 2021-07-07 | 2021-08-27 | 乐辉 | Linkage door closer mechanism with real-time delay positioning function |
| CN114016847A (en) * | 2021-10-27 | 2022-02-08 | 济南本安科技发展有限公司 | Prevent fire door electromagnetic switch controlgear |
| EP4325015A1 (en) * | 2022-08-17 | 2024-02-21 | GEZE GmbH | Fixing device and door drive |
-
2020
- 2020-04-02 CN CN202020465057.XU patent/CN212176889U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112969310A (en) * | 2021-02-05 | 2021-06-15 | 四川恩巨实业有限公司 | Positioning and assembling jig for power adapter |
| CN112969310B (en) * | 2021-02-05 | 2023-08-15 | 四川恩巨电子科技有限公司 | Positioning and assembling jig for power adapter |
| CN113107300A (en) * | 2021-05-20 | 2021-07-13 | 深圳市泛海三江电子股份有限公司 | Automatic limiting unit of electric door closer |
| CN113309441A (en) * | 2021-07-07 | 2021-08-27 | 乐辉 | Linkage door closer mechanism with real-time delay positioning function |
| CN114016847A (en) * | 2021-10-27 | 2022-02-08 | 济南本安科技发展有限公司 | Prevent fire door electromagnetic switch controlgear |
| EP4325015A1 (en) * | 2022-08-17 | 2024-02-21 | GEZE GmbH | Fixing device and door drive |
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