CN219758926U - Automatic alarm device for normally-closed fireproof door - Google Patents
Automatic alarm device for normally-closed fireproof door Download PDFInfo
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- CN219758926U CN219758926U CN202320726723.4U CN202320726723U CN219758926U CN 219758926 U CN219758926 U CN 219758926U CN 202320726723 U CN202320726723 U CN 202320726723U CN 219758926 U CN219758926 U CN 219758926U
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- 230000005389 magnetism Effects 0.000 description 8
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- 238000005192 partition Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
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Abstract
The utility model discloses an automatic alarm device of a normally-closed fireproof door, and relates to the technical field of fireproof doors. The utility model solves the problem that the old community has no fire alarm system. The normally closed fireproof door automatic alarm device comprises a soft magnet, a permanent magnet and a magnetic control detection device; the permanent magnet is fixed on a door frame of the normally closed fireproof door through a second fastening device; the soft magnet is fixed on the wall body through a first fastening device, and is close to the magnetic control detection device and the permanent magnet; the magnetic control detection device is positioned on the outer side of the normally-closed fireproof door and is configured to send an alarm signal to a control center when the normally-closed fireproof door is opened. Therefore, after the normally-closed fireproof door is opened for a certain time, the automatic alarm device for the normally-closed fireproof door provided by the embodiment of the utility model can inform maintenance personnel or fireproof safety management personnel of abnormal conditions, and is beneficial to checking whether the normally-closed fireproof door is in a closed state or not so as to ensure the safety in an evacuation stairwell when a fire disaster occurs.
Description
Technical Field
The utility model relates to the technical field of fireproof doors, in particular to an automatic alarm device for a normally-closed fireproof door.
Background
Fireproof doors are doors that meet the requirements of fire resistance stability, integrity and thermal insulation over a period of time. The fireproof door is a fireproof partition with certain fire resistance, which is arranged among fireproof partitions, evacuation stairwells, vertical shafts and the like, has the functions of preventing fire from spreading and smoke from spreading besides the function of a common door, and can prevent the fire from spreading within a certain time so as to ensure personnel evacuation.
Fire doors are divided into a normally open type fire door and a normally closed type fire door, and the normally closed type fire door is required to be in a closed state all the time. Because of the light fire consciousness of people, as a fire door which is supposed to be in a normally closed state, people can keep the normally closed fire door in an open state for a long time due to ventilation, lighting and other reasons. Some people accumulate sundries even at the normally-closed fireproof door part, so that the normally-closed fireproof door cannot be normally closed. These phenomena all cause serious potential safety hazards, and once a fire disaster occurs, the fireproof door cannot play a role in isolating the fire. In addition, the implementation of the fire automatic alarm design Specification GB50116-2013 is started on the 5 th month and 1 st 2014. All normally closed fireproof doors designed before are not provided with fireproof door alarm systems, and in the case of high-rise houses, the number of layers is large, and management staff cannot judge whether the normally closed fireproof doors are in a closed state or not, and if the normally closed fireproof doors are inspected every day, a large amount of manpower and material resources are consumed. If the normally closed fireproof door of a certain floor is not closed, smoke enters the stairwell when a fire disaster occurs, and the stairwell originally used as an evacuation channel becomes a large chimney and cannot escape.
Disclosure of Invention
The embodiment of the utility model solves the technical problem that the old community has no automatic alarm system in the prior art, and serious potential safety hazard can be caused if a normally closed fireproof door closer is damaged or blocked by other obstacles and cannot be closed.
The embodiment of the utility model provides an automatic alarm device of a normally closed fireproof door, which comprises a soft magnet, a permanent magnet and a magnetic control detection device; the permanent magnet is fixed on a door frame of the normally closed fireproof door through a second fastening device; the soft magnet is fixed on the wall body through a first fastening device, and is close to the magnetic control detection device and the permanent magnet; the magnetic control detection device is positioned on the outer side of the normally-closed fireproof door and is configured to send an alarm signal to a control center when the normally-closed fireproof door is opened.
In one possible implementation, the automatic alarm device of the normally closed fireproof door further comprises an embedded box; the embedded box is arranged in the wall body, the magnetic control detection device is arranged in the embedded box, and the soft magnet is arranged on the outer side of the embedded box.
In one possible implementation, the pre-buried box is provided with a door lock device.
In one possible implementation, the magnetic control detection device is fixed in the embedded box through a third fastening device.
In one possible implementation, the first, second and third fastening means are screws or strong glue.
In one possible implementation, a clarinet is disposed within the magnetically controlled detection device.
One or more technical solutions provided in the embodiments of the present utility model at least have the following technical effects or advantages:
the embodiment of the utility model provides an automatic alarm device for a normally closed fireproof door, which comprises a soft magnet, a permanent magnet and a magnetic control detection device. The permanent magnet is fixed on the door frame of the fireproof door through the second fastening device, the soft magnet is fixed on the wall through the first fastening device, and the soft magnet is close to the magnetic control detection device and the permanent magnet. When the normally closed fireproof door is closed, the magnetic control detection device can detect the transition magnetism of the permanent magnet through the soft magnet, so that an alarm signal is not sent to the control center; when the normally closed fireproof door is just opened, the soft magnet continuously transmits magnetism to the magnetic control detection device; when the normally closed fireproof door is opened for a certain time, the magnetism of the soft magnetic body disappears, the magnetic control detection device transmits an alarm signal to the control center, and after receiving the alarm signal, the property checks the door transmitting the signal and arranges monitoring personnel or maintenance personnel for problem solving, so that the situation that the fireproof door is used normally and false alarm occurs is avoided. Therefore, after the normally-closed fireproof door is opened for a certain time, the automatic alarm device for the normally-closed fireproof door provided by the embodiment of the utility model can timely inform maintenance personnel or fireproof safety management personnel of abnormal conditions, and is beneficial to checking whether the normally-closed fireproof door is in a closed state or not so as to ensure the safety in the evacuation stairwell when a fire disaster occurs.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments of the present utility model or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an automatic alarm device for a normally closed fireproof door provided by an embodiment of the utility model;
fig. 2 is a schematic structural view of a door lock device according to an embodiment of the present utility model;
fig. 3 is a control schematic diagram of a control center according to an embodiment of the present utility model.
Reference numerals: 1-embedding a box; 11-a door lock device; 111-lock core; 112-a lock tongue; 113-a key; 2-soft magnetic body; 21-a first fastening means; 3-permanent magnets; 31-a second fastening means; 4-normally closed fire door; 5-a magnetic control detection device; 51-a third fastening means; 6, a control center; 7-wall body.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the embodiments of the present utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.
The embodiment of the utility model provides an automatic alarm device for a normally-closed fireproof door, which is shown in figures 1 to 3. Fig. 1 is a schematic structural diagram of an automatic alarm device for a normally closed fire door according to an embodiment of the present utility model, fig. 2 is a schematic structural diagram of a door lock device according to an embodiment of the present utility model, and fig. 3 is a control schematic diagram of a control center according to an embodiment of the present utility model.
As shown in fig. 1 to 3, the automatic alarm device for the normally closed fireproof door provided by the embodiment of the utility model comprises a soft magnet 2, a permanent magnet 3 and a magnetic control detection device 5. The permanent magnet 3 is fixed to the door frame of the normally closed fire door 4 by means of a second fastening means 31. The permanent magnet 3 may be provided to the upper portion or the side portion or the lower portion of the door frame of the normally closed fire door 4 as long as the installation of the permanent magnet 3 is facilitated. Normally, the permanent magnet 3 is mounted on the upper part of the door frame of the normally closed fire door 4.
With continued reference to fig. 1, the soft magnetic body 2 is fixed to the wall 7 by a first fastening means 21, and the soft magnetic body 2 is close to the magnetically controlled detection means 5 and the permanent magnet 3. The magnetic control detection device 5 is located outside the normally closed fire door 4 and is configured to send an alarm signal to the control center 6 when the normally closed fire door 4 is opened.
The existing part of the normally-closed fireproof door 4 also has a signal detection system, and the normally-closed fireproof door 4 can immediately send a signal to the control center 6 as long as the normally-closed fireproof door is opened. Sometimes, however, maintenance personnel overhaul the fireproof door, the fireproof door can be opened and closed briefly, and the signal detection system can also send signals to the control center 6, so that monitoring personnel run empty, and waste of manpower is caused. The automatic alarm device of the normally closed fireproof door is improved by the working principle of a door magnetic detector. When the normally closed fireproof door 4 is closed, the magnetic control detection device 5 can detect the transition magnetism of the permanent magnet 3 through the soft magnet 2, and the magnetic control detection device 5 can not send an alarm signal to the control center 6; when the normally closed fireproof door 4 is just opened, the soft magnet 2 continuously transmits magnetism to the magnetic control detection device 5; when the normally closed fireproof door 4 is opened for a certain time, the magnetism of the soft magnetic body 2 disappears, the magnetic control detection device 5 transmits an alarm signal to the control center 6, and after receiving the alarm signal, the property checks the door transmitting the signal and arranges monitoring personnel or maintenance personnel for problem solving, so that the condition that the normally closed fireproof door 4 is used for false alarm is avoided. Therefore, the automatic alarm device for the normally-closed fireproof door provided by the embodiment of the utility model can inform maintenance personnel or fireproof safety management personnel of abnormal conditions in time after the normally-closed fireproof door 4 is opened for a certain time, and is beneficial to checking whether the normally-closed fireproof door 4 is in a closed state or not so as to ensure the safety in the evacuation stairwell when a fire disaster occurs.
By way of example, fig. 1 provides a specific structural form of an automatic alarm device for a normally closed fire door 4. The automatic alarm device of the normally closed fireproof door 4 further comprises an embedded box 1. The embedded box 1 is arranged in the wall 7, the magnetic control detection device 5 is arranged in the embedded box 1, and the soft magnet 2 is arranged on the outer side of the embedded box 1.
It should be noted that the automatic alarm device for the normally closed fireproof door in the embodiment of the utility model is provided with the embedded box 1. On the one hand, because the magnetic control detection device 5 is high in price and easy to steal, the magnetic control detection device 5 is placed in the embedded box 1, so that the magnetic control detection device 5 can be prevented from being lost; on the other hand, the magnetic control detection device 5 is placed in the wall body, so that the space can be saved, and meanwhile, the damage can be prevented. The embedded box 1 is provided with a groove in the wall 7 close to the permanent magnet 3, and a door is arranged at the outer side of the groove so as to protect the magnetic control detection device 5. However, the embodiment of the present utility model is not limited to such a structure, and the pre-buried box 1 may be in a drawing structure.
As shown in fig. 1 and 2, the pre-buried box 1 is provided with a door lock device 11. The door lock device 11 shown includes a key 113, a lock cylinder 111, and a deadbolt 112. When the magnetic control detection device 5 is required to be overhauled or the magnetic control detection device 5 is not powered, the monitoring personnel can open the embedded box 1 through the key 113, so that the device is convenient and practical. Of course, the embodiment of the present utility model is not limited to the structure of the door lock device 11, but may be a buckle or other structures.
In one implementation of the embodiment of the present utility model, the magnetic control detecting device 5 is fixed in the pre-buried box 1 through the third fastening device 51.
With continued reference to fig. 1, the first fastening means 21, the second fastening means 31 and the third fastening means 51 are screws or strong glue. The screw or the strong glue is used for preventing the permanent magnet, the soft magnet 2 and the magnetic control detection device 5 from falling off or moving and protecting the permanent magnet, the soft magnet and the magnetic control detection device from being damaged.
In one implementation of the embodiment of the utility model, a clarinet is provided in the magnetic control detection device 5. When the normally closed fireproof door 4 is in a closed state, the permanent magnet 3 attracts a clarinet in the magnetic control detection device 5 through transition of the soft magnet 2, and the magnetic control detection device 5 cannot send an alarm signal to the control center 6; when the normally closed fireproof door 4 is opened, the soft magnet 2 can continuously attract the clarinet by magnetism; when the normal close fireproof door 4 is opened for a certain time, the magnetism of the soft magnetic body 2 disappears, the clarinet in the magnetic control detection device 5 is not attracted any more, the magnetic control detection device 5 transmits an alarm signal to the control center 6, after receiving the alarm signal, the property checks and arranges a fireproof safety manager or a maintainer to solve the problem, and the waste of manpower and the interference caused by false alarm due to normal use of the normal close fireproof door 4 are avoided. Of course, the switch structure of the magnetic control detecting device 5 is not limited by a clarinet, and may be a magnetic control switch such as a hall sensor.
Further, a warning device can be arranged above the normally-closed fireproof door 4, and the warning device is a voice alarm. When someone breaks rules and opens the normally-closed fireproof door 4, warning can be sent out through a warning device, so that the normally-closed protective door 4 can be closed as soon as possible by the person breaking rules.
The automatic alarm device for the normally closed fireproof door is suitable for reconstruction of old communities and built buildings.
In this specification, each embodiment is described in a progressive manner, and the same or similar parts of each embodiment are referred to each other, and each embodiment is mainly described as a difference from other embodiments.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the present utility model; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (6)
1. The normally-closed fireproof door automatic alarm device is characterized by comprising a soft magnet (2), a permanent magnet (3) and a magnetic control detection device (5);
the permanent magnet (3) is fixed on a door frame of the normally closed fireproof door (4) through a second fastening device (31);
the soft magnet (2) is fixed on a wall body (7) through a first fastening device (21), and the soft magnet (2) is close to the magnetic control detection device (5) and the permanent magnet (3);
the magnetic control detection device (5) is positioned at the outer side of the normally-closed fireproof door (4) and is configured to send an alarm signal to the control center (6) when the normally-closed fireproof door (4) is opened.
2. The automatic alarm device of the normally closed fireproof door according to claim 1, further comprising a pre-buried box (1);
the embedded box (1) is arranged in the wall body (7), the magnetic control detection device (5) is arranged in the embedded box (1), and the soft magnet (2) is arranged on the outer side of the embedded box (1).
3. The automatic alarm device of a normally closed fire door according to claim 2, characterized in that the pre-buried box (1) is provided with a door lock device (11).
4. A normally closed fire door automatic alarm device according to claim 2 or 3, characterized in that the magnetic control detection device (5) is fixed in the pre-buried box (1) through a third fastening device (51).
5. The automatic alarm device of a normally closed fire door according to claim 4, characterized in that said first fastening means (21), said second fastening means (31) and said third fastening means (51) are screws or strong glue.
6. The automatic alarm device of the normally closed fireproof door according to claim 1, wherein a clarinet is arranged in the magnetic control detection device (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320726723.4U CN219758926U (en) | 2023-04-06 | 2023-04-06 | Automatic alarm device for normally-closed fireproof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320726723.4U CN219758926U (en) | 2023-04-06 | 2023-04-06 | Automatic alarm device for normally-closed fireproof door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219758926U true CN219758926U (en) | 2023-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320726723.4U Active CN219758926U (en) | 2023-04-06 | 2023-04-06 | Automatic alarm device for normally-closed fireproof door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219758926U (en) |
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2023
- 2023-04-06 CN CN202320726723.4U patent/CN219758926U/en active Active
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