CN218598111U - Fire door apparatus and system - Google Patents
Fire door apparatus and system Download PDFInfo
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- CN218598111U CN218598111U CN202222948117.5U CN202222948117U CN218598111U CN 218598111 U CN218598111 U CN 218598111U CN 202222948117 U CN202222948117 U CN 202222948117U CN 218598111 U CN218598111 U CN 218598111U
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- electromagnetic attraction
- change material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The utility model discloses a prevent fire door device and system, prevent fire door device includes: a door frame; the door leaf is arranged in the door frame and provided with a second surface, and the second surface is arranged opposite to the first surface of the door frame; fire door magnetic switch, fire door magnetic switch include first electromagnetic attraction portion and second electromagnetic attraction portion, are provided with first shoulder hole on the first surface, and first electromagnetic attraction portion is the step shaft form and holding in first shoulder hole, and the second is provided with the second shoulder hole on the surface, and second electromagnetic attraction portion holding is in the second shoulder hole, and the big footpath section of first shoulder hole and the big footpath section of second shoulder hole are relative and be close to the setting each other. The electromagnetic attraction parts in the fireproof door magnetic switch can be better positioned by utilizing the step surface of the step hole, and the positions of the two electromagnetic attraction parts can be ensured to be aligned, so that the attraction force between the two electromagnetic attraction parts is improved. The big footpath section of first shoulder hole and the big footpath section of second shoulder hole are relative and are close to the setting each other, make things convenient for the installation of electromagnetism actuation portion.
Description
Technical Field
The utility model relates to a fire prevention technical field especially relates to a prevent fire door device and system.
Background
Fire doors are doors used to maintain the fire integrity of fire paths and to provide escape routes. The purpose is to ensure that the person escaping from the fire escape is protected from the fire, including the heavy smoke and the heat, within a reasonable time (usually the escape time). The fire-fighting protective film is an important component in fire-fighting equipment and is an important part in social fire prevention.
The fireproof door magnetic switch is an important fireproof component in a fireproof door, and is used for locking the fireproof door when a fire disaster occurs, so that the danger caused by mistakenly opening the fireproof door when people escape is prevented.
However, the existing magnetic switch for the fireproof door easily has the problem of poor locking effect, thereby causing potential safety hazards.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a fire door device and system with good locking effect and high safety.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
according to the utility model discloses an aspect provides a prevent fire door device, prevent fire door device includes:
a door frame;
the door leaf is arranged in the door frame and provided with a second surface, and the second surface is arranged opposite to the first surface of the door frame;
the fireproof door magnetic switch comprises a first electromagnetic attraction portion and a second electromagnetic attraction portion, a first stepped hole is formed in the first surface, the first electromagnetic attraction portion is in a stepped shaft shape and is accommodated in the first stepped hole, a second stepped hole is formed in the second surface, the second electromagnetic attraction portion is accommodated in the second stepped hole, and the large-diameter section of the first stepped hole and the large-diameter section of the second stepped hole are arranged close to each other relatively.
Preferably, a first phase-change material block is arranged at the bottom of the first stepped hole, the first electromagnetic attraction part abuts against the first phase-change material block, and the melting point of the first phase-change material block is between 50 ° and 60 °; and/or the presence of a gas in the atmosphere,
the bottom of the second stepped hole is provided with a second phase-change material block, the second electromagnetic attraction part abuts against the second phase-change material block, and the melting point of the second phase-change material block is 50-60 degrees.
Preferably, the first block of phase change material comprises a paraffin block or a polycaprolactone block; and/or the second phase change material block comprises a paraffin block or a polycaprolactone block.
Preferably, the first phase-change material block comprises a plurality of first sub-phase-change material blocks which are arranged in a stacked manner, and the melting points of the plurality of first sub-phase-change material blocks are gradually reduced along the direction from the position far away from the first electromagnetic attraction part to the position close to the first electromagnetic attraction part; and/or the presence of a gas in the gas,
the second phase-change material block comprises a plurality of second sub-phase-change material blocks which are stacked, and the melting points of the plurality of second sub-phase-change material blocks are gradually reduced along the direction from the position far away from the second electromagnetic attraction part to the position close to the second electromagnetic attraction part.
Preferably, a first through hole is formed in the first phase-change material block, a second through hole communicated with the first through hole is formed in the door frame, and the first through hole and the second through hole are used for accommodating a cable connected with the first electromagnetic attraction portion.
Preferably, a sealing ring is arranged in the second through hole.
Preferably, the aperture of the second through hole is larger than the aperture of the first through hole.
Preferably, a protruding portion is arranged on the inner side surface of the door frame, a first fireproof expansion sealing piece is arranged on the side surface, opposite to the door leaf, of the protruding portion, a sealing tongue is arranged on the first fireproof expansion sealing piece, and when the door leaf is located at a closed position, the door leaf abuts against the sealing tongue.
Preferably, a groove is formed in the outer circumferential surface of the door leaf, and a second fireproof expansion sealing member is arranged in the groove.
According to the utility model discloses an aspect, provide a fire door system, fire door system includes as above fire door device, fire door system still includes the fire door watch-dog that prevents that links to each other and prevents fire door total control end, prevent fire door watch-dog pass through the cable with first electromagnetism actuation portion connects.
The utility model provides an among the fire door device, all be provided with the shoulder hole on the first surface of door frame and the second surface of relative door leaf, utilize the ladder face of shoulder hole to fix a position the electromagnetic attraction portion in the fire door magnetic switch better, guarantee that the position of two electromagnetic attraction portions can adjust well to improve the suction between two electromagnetic attraction portions. The large-diameter section of the first stepped hole and the large-diameter section of the second stepped hole are opposite and close to each other, so that the two electromagnetic suction portions are convenient to install.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a system block diagram of a fire door system according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a fire door apparatus according to an embodiment of the present invention;
figure 3 shows a transverse cross-sectional view of the fire door apparatus shown in figure 2;
figure 4 shows a longitudinal cross-sectional view of the fire door apparatus shown in figure 2;
FIG. 5 shows a cross-sectional view taken along line C-C of FIG. 2;
fig. 6 shows a schematic structural diagram of a fire door apparatus provided in an embodiment of the present invention at a magnetic switch of a fire door;
fig. 7 is an enlarged view at a in fig. 6.
In the figure:
10. a fire door apparatus; 11. a door frame; 111. a projection; 112. a raised panel structure; 113. a first stepped hole; 114. a second through hole; 12. a first door leaf; 121. a first door panel; 122. a second door panel; 123. vermiculite plate; 124. a groove; 125. a first cover seam plate; 126. a second stepped bore; 13. a second door leaf; 131. a second cover seam plate; 14. a fire-proof hinge; 15. a fireproof lock; 16. a fireproof bolt; 17. a fire prevention sequencer; 181. a first fire resistant intumescent seal; 1811. a seal body; 1812. a sealing tongue; 182. a second fire resistant intumescent seal; 191. a first skeleton; 192. a second skeleton; 193. a third skeleton; 194. a fourth skeleton; 21. a fireproof door magnetic switch; 211. a first electromagnetic attraction part; 212. a second electromagnetic attraction part; 30. a fire door monitor; 40. a fireproof master control end; 50. a first volume of phase change material; 51. a first through hole; 60. a second volume of phase change material; 70. and (5) sealing rings.
Detailed Description
The present invention is described below based on embodiments, and it is understood by those of ordinary skill in the art that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
The magnetic switch of the fire door is usually disposed between the door frame and the door leaf, for example, a first electromagnetic attraction portion of the magnetic switch of the fire door is disposed on the door frame, a second electromagnetic attraction portion is disposed on the door leaf, and the first electromagnetic attraction portion and the second electromagnetic attraction portion can attract each other to lock the door leaf in the door frame. In order to realize the installation of fire door magnetic switch, set up the through-hole on door frame and door leaf usually, insert the electromagnetism actuation portion in the through-hole, however, this kind of mode of setting can have electromagnetism actuation portion mounted position skew, the axis deflects the scheduling problem, and can open and shut smoothly under normal circumstances in order to guarantee the door leaf, the interval has between door leaf and the door frame, lead to first electromagnetism actuation portion and second electromagnetism actuation portion can't just right, influence suction between the two, thereby cause fire door magnetic switch to have the poor problem of locking effect easily, cause the potential safety hazard.
Based on this, the utility model provides a prevent fire door device, its second surface at the first surface of door frame and relative door leaf all is provided with the shoulder hole, utilizes the ladder face of shoulder hole to fix a position the electromagnetism actuation portion in the fire door magnetic switch better, guarantees that the position of two electromagnetism actuation portions can be adjusted well to improve the suction between two electromagnetism actuation portions. The large-diameter section of the first stepped hole and the large-diameter section of the second stepped hole are opposite and close to each other, so that the two electromagnetic attraction parts are convenient to install.
The present application provides a fire door apparatus and a fire door system having the same, as shown in fig. 1, the fire door system includes a fire door apparatus 10, a fire door monitor 30, and a fire door overall control terminal 40. The fire door monitor 30 is capable of receiving a control signal from the fire door master control end 40 and controlling the fire door apparatus 10 according to the control signal.
As shown in fig. 2, the fire door apparatus includes a frame 11 and a door leaf disposed in the frame 11, in some embodiments, the door leaf is in a single-door structure, that is, only one door leaf is disposed in the frame 11, and in other embodiments, the door leaf is in a split-door structure, that is, as shown in fig. 2, the door leaf includes a first door leaf 12 and a second door leaf 13, and the first door leaf 12 and the second door leaf 13 form a split-door structure. The door leaf is connected to the door frame 11 by a fireproof hinge 14, thereby enabling the opening and closing of the door leaf. The door leaf is further provided with a fireproof lock 15, in the embodiment of the door leaf with a single-door structure, the fireproof lock 15 locks the door leaf with the door frame 11, and in the embodiment of the door leaf with a double-door structure, the fireproof lock 15 locks the first door leaf 12 with the second door leaf 13. With further reference to fig. 2, in the embodiment where the door leaf is a double door structure, the door leaf is provided with a fire bolt 16 and a fire sequencer 17 to ensure that personnel can close the door leaf in the correct sequence.
The fire door apparatus 10 further includes a fire door magnetic switch 21, and the fire door magnetic switch 21 is used to lock the door leaf in the open or closed position. Illustratively, when the fire door master control end 40 receives the fire alarm signal, it sends a control signal to the fire door monitor 30 through the cable, and after the fire door monitor 30 receives the control signal, it controls the action of the fire door magnetic switch 21 to lock the door leaf in the closed position.
In an embodiment, as shown in fig. 6, the magnetic switch 21 of the fire door includes a first electromagnetic attraction portion 211 and a second electromagnetic attraction portion 212, the first electromagnetic attraction portion 211 is disposed on the door frame 11, the second electromagnetic attraction portion 212 is disposed on the door leaf, and the first electromagnetic attraction portion 211 and the second electromagnetic attraction portion 212 can attract each other to lock the door leaf of the fire door apparatus with the door frame 11. Illustratively, the fire door monitor 30 is connected to the first electromagnetic attraction portion 211 by a cable, and thus, the fire door monitor 30 controls the first electromagnetic attraction portion 211 to be attracted to or separated from the second electromagnetic attraction portion 212 in response to a control signal.
The door frame 11 includes a first surface, the door leaf includes a second surface, the first surface is opposite to the second surface, and with reference to fig. 6, the first surface is provided with a first stepped hole 113, the first electromagnetic attraction portion 211 is stepped shaft-shaped and is accommodated in the first stepped hole 113, the second surface is provided with a second stepped hole 126, and the second electromagnetic attraction portion 212 is stepped shaft-shaped and is accommodated in the second stepped hole 126. The electromagnetic attraction parts in the fireproof door magnetic switch 21 can be better positioned by utilizing the step surfaces of the step holes, and the positions of the two electromagnetic attraction parts can be ensured to be aligned, so that the attraction force between the two electromagnetic attraction parts is improved. The large-diameter section of the first stepped hole 113 and the large-diameter section of the second stepped hole 126 are opposite and close to each other, so that the two electromagnetic attraction parts can be conveniently mounted.
In order to ensure that the door leaf can be smoothly opened and closed, a certain distance is provided between the first surface and the second surface, and in order to avoid interference between the first electromagnetic attraction portion 211 and the second electromagnetic attraction portion 212 under normal conditions, as shown in fig. 6, an outer surface of the first electromagnetic attraction portion 211 is flush with the first surface, and an outer surface of the second electromagnetic attraction portion 212 is flush with the second surface. In other embodiments, the outer surface of the first electromagnetic attraction portion 211 may be located inside the first surface, and the outer surface of the second electromagnetic attraction portion 212 may be located inside the second surface.
As described above, since the first surface and the second surface have a certain interval therebetween, so that the first electromagnetic attraction portion 211 and the second electromagnetic attraction portion 212 are also spaced from each other, in order to further increase the attraction force of the first electromagnetic attraction portion 211 and the second electromagnetic attraction portion 212, as shown in fig. 6, the bottom of the first stepped hole 113 is provided with the first phase change material block 50, the first electromagnetic attraction portion 211 abuts against the first phase change material block 50, and the melting point of the first phase change material block 50 is between 50 ° and 60 °. When the indoor temperature rises to the melting point of the material, the first phase-change material block 50 is transformed into a liquid state, so that the volume of the first phase-change material is increased, the first electromagnetic attraction part 211 is pushed to move outwards, the first electromagnetic attraction part 211 and the second electromagnetic attraction part 212 are enabled to be closer, and the attraction force between the first electromagnetic attraction part 211 and the second electromagnetic attraction part is improved. The first block of phase-change material 50 may be, for example, a paraffin block, a polycaprolactone block, or the like.
Correspondingly, the second phase-change material block 60 is arranged at the bottom of the second stepped hole 126, the second electromagnetic attraction part 212 abuts against the second phase-change material block 60, and the melting point of the second phase-change material block 60 is 50-60 degrees. When the indoor temperature rises to the melting point of the material, the second phase-change material block 60 is transformed into a liquid state, so that the volume of the second phase-change material is increased, the second electromagnetic attraction part 212 is pushed to move outwards, the first electromagnetic attraction part 211 and the second electromagnetic attraction part 212 are enabled to be closer, and the attraction force between the first electromagnetic attraction part 211 and the second electromagnetic attraction part is improved. The second phase change material block 60 may be, for example, a paraffin block, a polycaprolactone block, or the like.
The first phase-change material block 50 may be a unitary structure with a consistent material, in other embodiments, the first phase-change material block 50 includes a plurality of first sub-phase-change material blocks stacked, and a melting point of the plurality of first sub-phase-change material blocks gradually decreases along a direction from a position far away from the first electromagnetic attraction portion 211 to a position close to the first electromagnetic attraction portion 211, so that the plurality of first sub-phase-change material blocks gradually melt during a temperature increase process, so that the first electromagnetic attraction portion 211 can gradually move outward, and a jamming phenomenon of the first electromagnetic attraction portion 211 during a movement process is avoided.
Similarly, the second phase-change material block 60 may be a unitary structure of a consistent material, and in other embodiments, the second phase-change material block 60 includes a plurality of second sub-phase-change material blocks arranged in a stack, and the melting points of the plurality of second sub-phase-change material blocks gradually decrease in a direction from being far away from the second electromagnetic attraction portion 212 to being close to the second electromagnetic attraction portion 212. Therefore, in the process of temperature rise, the plurality of second sub-phase-change material blocks are gradually melted, so that the second electromagnetic attraction portion 212 can gradually move outwards, and the phenomenon that the second electromagnetic attraction portion 212 is blocked in the moving process is avoided.
In order to facilitate the connection between the first electromagnetic attraction portion 211 and the fire door monitor 30 through a cable, as shown in fig. 7, a first through hole 51 is formed in the first phase change material block 50, a second through hole 114 is formed in the door frame 11 and is communicated with the first through hole 51, and the first through hole 51 and the second through hole 114 are used for accommodating the cable connected to the first electromagnetic attraction portion 211.
In one embodiment, with continued reference to fig. 7, a sealing ring 70 is disposed in the second through hole 114, for example, the sealing ring 70 is disposed at a position adjacent to the first through hole 51 and the second through hole 114, and an inner side surface of the sealing ring 70 is attached to an outer side surface of the cable, so that the first phase change material block 50 melted into liquid can be prevented from entering the second through hole 114. When the first phase-change material block 50 is melted into liquid to push the first electromagnetic attraction portion 211 to move, the cable connected with the first electromagnetic attraction portion 211 also moves along with the first phase-change material block, and in order to ensure that the cable is not broken due to pulling of the first electromagnetic attraction portion 211 when the first electromagnetic attraction portion 211 moves, preferably, as shown in fig. 7, the aperture of the second through hole 114 is larger than that of the first through hole 51, and the aperture of the second through hole 114 is larger than the outer diameter of the cable, and when the first electromagnetic attraction portion 211 does not move, the cable is in a non-straightening state such as a wavy state, a winding and bending state and the like in the first through hole 51, so as to ensure that the cable has enough movement allowance.
In order to ensure the tightness when the door leaf is closed, a fireproof expansion seal is provided between the door frame 11 and the door leaf. In one embodiment, as shown in fig. 5, the inner side of the door frame 11 is provided with a protrusion 111, where the inner side of the door frame 11 refers to the side of the door frame 11 opposite to the door leaf. The side face, opposite to the door leaf, of the protruding portion 111 is provided with a first fireproof expansion sealing element 181, the first fireproof expansion sealing element 181 is provided with a sealing tongue 1812, when the door leaf is in the closed position, the door leaf abuts against the sealing tongue 1812, and the sealing performance of the door leaf in the closed position can be improved by the sealing tongue 1812. As an example, as shown in fig. 5, a side of the protruding portion 111 away from the doorframe 11 is provided with a convex plate structure 112 protruding toward the door leaf, such that the convex plate structure 112 and the protruding portion 111 form a groove body opening toward the door leaf, the first fireproof expansion sealing member 181 includes a sealing member body 1811, a sealing tongue 1812 is connected to the sealing member body 1811, the sealing member body 1811 is received in the groove body, the sealing tongue 1812 is connected to an end of the sealing member body 1811 away from the doorframe 11, and the sealing tongue 1812 is inclined in a direction away from the sealing member body 1811 in a direction close to the doorframe 11. Preferably, the door frame 11, the protruding portion 111 and the protruding plate structure 112 are integrally formed by bending a plate, for example, a 1.2mm galvanized cold-rolled sheet.
In one embodiment, as shown in fig. 5, a groove 124 is formed on the outer circumferential surface of the door leaf, and a second fireproof expansion sealing member 182 is disposed in the groove 124. Exemplarily, the door leaf includes a first door leaf panel 121 and a second door leaf panel 122 which are oppositely disposed, and a vermiculite plate 123 interposed between the first door leaf panel 121 and the second door leaf panel 122. On the outer circumferential surface of the door leaf, the first door leaf panel 121 and the second door leaf panel 122 are overlapped to form a groove bottom of the groove 124, the first door leaf panel 121 is bent towards the direction of the vermiculite plate 123 to form one groove wall of the groove, the second door leaf panel 122 is bent towards the direction of the vermiculite plate 123 to form the other groove wall of the groove, the second fireproof expansion sealing piece 182 is positioned in the groove 124, and the second fireproof expansion sealing piece 182, the first door leaf panel 121 positioned at the groove bottom, the second door leaf panel 122 positioned at the groove bottom and the vermiculite plate 123 are fixedly connected together in sequence through fasteners.
In the embodiment of the double-door structure, the side of the first door leaf 12 opposite to the second door leaf 13 is also provided with the above-mentioned groove 124 and the second fireproof expansion sealing member 182, so as to ensure the sealing property between the first door leaf 12 and the second door leaf 13. Further, as shown in fig. 3, one side of the first door 12 extends in a direction toward the second door 13 to form a first joint plate 125, the other side of the second door 13 extends in a direction toward the first door 12 to form a second joint plate 131, and third fire-proof expansion seals are provided on both a side surface of the first joint plate 125 opposite to the second door 13 and a side surface of the second joint plate 131 opposite to the first door 12, thereby further improving the sealing performance when the doors are closed.
In order to ensure the structural strength of the door leaf, it is preferable that a skeleton is provided in the door leaf, and for example, as shown in fig. 3 and 4, the skeleton includes a first skeleton 191 provided near the outer circumferential surface of the door leaf and a second skeleton 192 provided inside the door leaf, and for example, the first skeleton 191 and the second skeleton 192 are both C-shaped in cross section, and the opening directions of the first skeleton 191 and the second skeleton 192 are the same. In the embodiment where the door leaves are of a double door structure, the framework further includes a third framework 193 disposed inside the first door leaf 12 and adjacent to the second door leaf 13, and a fourth framework 194 disposed inside the second door leaf 13 and adjacent to the first door leaf 12.
The utility model provides an among the fire door device, all be provided with the shoulder hole on the first surface of door frame and the second surface of relative door leaf, utilize the ladder face of shoulder hole to fix a position the electromagnetism actuation portion in the fire door magnetic switch better, guarantee that the position of two electromagnetism actuation portions can adjust well to improve the suction between two electromagnetism actuation portions. The large-diameter section of the first stepped hole and the large-diameter section of the second stepped hole are opposite and close to each other, so that the two electromagnetic suction portions are convenient to install.
Those skilled in the art will readily appreciate that the above-described preferred embodiments may be freely combined, superimposed, without conflict.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A fire door apparatus, characterized in that the fire door apparatus comprises:
a door frame;
the door leaf is arranged in the door frame and provided with a second surface, and the second surface is arranged opposite to the first surface of the door frame;
the fireproof door magnetic switch comprises a first electromagnetic attraction part and a second electromagnetic attraction part, wherein a first stepped hole is formed in the first surface, the first electromagnetic attraction part is in a stepped shaft shape and is accommodated in the first stepped hole, a second stepped hole is formed in the second surface, the second electromagnetic attraction part is accommodated in the second stepped hole, and the large-diameter section of the first stepped hole and the large-diameter section of the second stepped hole are arranged relatively and close to each other.
2. The fire door apparatus of claim 1, wherein a bottom of the first stepped hole is provided with a first phase change material block, the first electromagnetic attraction portion abuts against the first phase change material block, and a melting point of the first phase change material block is between 50 ° and 60 °; and/or the presence of a gas in the atmosphere,
the bottom of the second stepped hole is provided with a second phase-change material block, the second electromagnetic attraction part is abutted against the second phase-change material block, and the melting point of the second phase-change material block is 50-60 degrees.
3. The fire door apparatus of claim 2, wherein said first block of phase change material is a paraffin block or a polycaprolactone block; and/or the second phase change material block is a paraffin block or a polycaprolactone block.
4. The fire door apparatus of claim 2, wherein the first phase change material block includes a plurality of first sub-phase change material blocks arranged in a stacked arrangement, a melting point of the plurality of first sub-phase change material blocks gradually decreasing in a direction from being away from the first electromagnetically attractive portion to being closer to the first electromagnetically attractive portion; and/or the presence of a gas in the gas,
the second phase-change material blocks comprise a plurality of second sub-phase-change material blocks which are stacked, and the melting points of the plurality of second sub-phase-change material blocks are gradually reduced along the direction from the position far away from the second electromagnetic attraction part to the position close to the second electromagnetic attraction part.
5. The fire door apparatus of claim 2, wherein a first through hole is formed in the first phase change material block, a second through hole is formed in the door frame, the second through hole is communicated with the first through hole, and the first through hole and the second through hole are used for accommodating a cable connected to the first electromagnetic attraction portion.
6. A fire door arrangement as claimed in claim 5, characterised in that a sealing ring is provided in the second through hole.
7. The fire door apparatus of claim 6, wherein an aperture of the second through hole is larger than an aperture of the first through hole.
8. Fire door arrangement according to any one of claims 1 to 7, characterized in that the inner side of the door frame is provided with a projection, on the side of which projection opposite the door leaf is provided with a first fire-resistant expansion seal, on which a sealing tongue is provided, against which the door leaf rests when the door leaf is in the closed position.
9. The fire door apparatus as recited in any one of claims 1 to 7, wherein a groove is provided on an outer circumferential surface of the door leaf, and a second fire-resistant intumescent seal is provided within the groove.
10. A fire door system, comprising the fire door apparatus as claimed in any one of claims 1 to 9, and further comprising a fire door monitor and a fire door overall control terminal connected to each other, the fire door monitor being connected to the first electromagnetic attraction portion through a cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222948117.5U CN218598111U (en) | 2022-11-07 | 2022-11-07 | Fire door apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222948117.5U CN218598111U (en) | 2022-11-07 | 2022-11-07 | Fire door apparatus and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218598111U true CN218598111U (en) | 2023-03-10 |
Family
ID=85404026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222948117.5U Active CN218598111U (en) | 2022-11-07 | 2022-11-07 | Fire door apparatus and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218598111U (en) |
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2022
- 2022-11-07 CN CN202222948117.5U patent/CN218598111U/en active Active
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