CN217400762U - B-level fireproof door - Google Patents
B-level fireproof door Download PDFInfo
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- CN217400762U CN217400762U CN202220723174.0U CN202220723174U CN217400762U CN 217400762 U CN217400762 U CN 217400762U CN 202220723174 U CN202220723174 U CN 202220723174U CN 217400762 U CN217400762 U CN 217400762U
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- door frame
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- fire
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Abstract
The utility model discloses a fire door is prevented to second grade, include the door frame and be located the door body of door frame, one of them side of the door body is connected with the door frame through the fire prevention hinge, be connected through the fire prevention door closer between the upper end of the door body and the door frame a side that the door body is not connected with the door frame still is equipped with a spacing extension plate, and the top of door frame, the both sides limit of door frame, a side that the door body is connected with the door frame and a side of spacing extension plate towards the door frame all are equipped with the recess, at each all be equipped with fire prevention inflation sealing member in the recess. The utility model discloses a structure is comparatively simple, seals through the cooperation of door plant, door frame and fire prevention inflation sealing member, has effectively improved the fire behavior of preventing fire door.
Description
Technical Field
The utility model relates to a prevent fire door technical field, specifically a fire door is prevented to second grade.
Background
A fire door is a door that can meet the requirements of fire stability, integrity and thermal insulation for a certain period of time. It is a fire-proof partition with certain fire resistance, which is arranged in fire-proof subareas, evacuation staircases, vertical shafts and the like. The existing fireproof door is mostly a steel fireproof door, a fireproof core material is arranged between two door plates to form the fireproof door, and the fireproof performance is poor when a fire disaster occurs. Therefore, it is necessary to provide a fire door with good fire resistance.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fire door is prevented to second grade to solve the problem of proposing among the above-mentioned background art.
In order to solve the problem, the utility model adopts the technical scheme that:
a second-level fireproof door comprises a door frame and a door body located in the door frame, wherein one side edge of the door body is connected with the door frame through a fireproof hinge, the upper end of the door body is connected with the door frame through a fireproof door closer, a limiting extension plate is further arranged on the side edge, which is not connected with the door frame, of the door body, grooves are formed in the top of the door frame, the two side edges of the door frame, one side surface, connected with the door frame, of the door body and one side surface, facing the door frame, of the limiting extension plate, and fireproof expansion sealing parts are arranged in the grooves.
Preferably, the thickness of the groove is longer than that of the fireproof expansion sealing element, and the fireproof expansion sealing elements on the two side surfaces of the door panel and the fireproof expansion sealing elements on the corresponding door frame on one side are arranged in a staggered mode. When a fire disaster occurs, the two fireproof expansion sealing pieces which are arranged in a staggered mode expand at the same time, and a double-layer fireproof effect is formed.
Preferably, the door body comprises two door panels which are arranged oppositely, a panel core is clamped between the two door panels, the panel core is formed by splicing panel-shaped door cores, and a gap between the two door cores is filled with fireproof glue.
Preferably, each of the door panels and each of the door frames are made of a galvanized cold-rolled steel sheet, and the door frames are formed by bending.
The front and back surfaces of the door body are provided with handles.
Compared with the prior art, the utility model discloses there is following beneficial effect to be:
the utility model discloses a set up the recess at the top and both sides of door frame, set up fire prevention expansion seal spare on the one side of the door body being connected with the door frame, on the spacing extension plate and in each recess, reach the effect of fire prevention through the door body when the conflagration appears, the door frame and each closely cooperate between the fire prevention expansion seal spare, fire prevention expansion seal spare is located the recess simultaneously, can not influence ordinary switch door operation, and can not stick out in the recess, prevent that fire prevention expansion seal spare from appearing cutting to pieces external force damage such as rubbing collision, and improve the pleasing to the eye degree of preventing fire door. The utility model discloses a structure is comparatively simple, seals through the cooperation of the door body, door frame and fire prevention inflation sealing member, has effectively improved the fire behavior of preventing fire door.
Drawings
FIG. 1 is a schematic top sectional view of the overall structure of the present invention;
FIG. 2 is a schematic side sectional view of the overall structure of the present invention;
FIG. 3 is an enlarged schematic cross-sectional view of the part A of the present invention;
fig. 4 is a schematic front view of the overall structure of the present invention;
FIG. 5 is an enlarged schematic view of the position B of the present invention;
1-door body, 11-handle, 12-door panel, 13-panel core, 14-limit extension plate, 2-door frame, 3-fireproof hinge, 4-fireproof door closer, 51-groove and 52-fireproof expansion sealing element.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 5, a second-class fireproof door includes a door frame 2 and a door body 1 located in the door frame 2, one side edge of the door body 1 is connected to the door frame 2 through a fireproof hinge 3, an upper end of the door body 1 is connected to the door frame 2 through a fireproof door closer 4, a limiting extension plate 14 is further disposed on a side edge of the door body 1 not connected to the door frame 2, grooves 51 are disposed on the top of the door frame 2, two side edges of the door frame 2, one side edge of the door body 1 connected to the door frame 2, and one side edge of the limiting extension plate 14 facing the door frame 2, and a fireproof expansion sealing element 52 is disposed in each groove 51.
The thickness of the groove 51 is greater than that of the fireproof expansion sealing element 52, and the fireproof expansion sealing elements 52 on the two sides of the door panel 12 are arranged in a staggered position with the fireproof expansion sealing elements 52 on the corresponding door frame 2. In case of fire, the two fire-proof expansion sealing members 52 arranged in a staggered manner expand simultaneously, so that a double-layer fire-proof effect is achieved.
The door body 1 comprises two door panels 12 which are arranged oppositely, a panel core 13 is clamped between the two door panels 12, the panel core 13 is formed by splicing panel-shaped door cores, and a gap between the door cores is filled with fireproof glue.
Each of the door panels 12 and each of the door frames 2 are made of a galvanized cold-rolled steel sheet, and the door frames 2 are formed by bending.
Both the front and the back surfaces of the door body 1 are provided with handles 11.
The utility model discloses during the use, through setting up recess 51 at the top and both sides of door frame 2, set up fire prevention expansion sealing member 52 in one side of being connected with door body 1 and door frame 2, spacing extension plate 14 and each recess 51 to crisscross setting around each relative two fire prevention expansion sealing member 52 is all, gap between the door body 1 and the door frame 2 is filled in each fire prevention expansion sealing member 52 inflation when the conflagration breaing out, fill around each crisscross relative fire prevention expansion sealing member 52 and reach the purpose of double-deck fire prevention. Meanwhile, the plate core 13 is formed by splicing a plurality of door cores, and fire-proof glue is filled in gaps among the door cores, so that the door body 1 is heated more uniformly in a fire disaster, and the fire-proof performance is improved. And because each fireproof expansion sealing element 52 is positioned in the corresponding groove 51, the fireproof expansion sealing elements cannot protrude out of the grooves 51 at ordinary times, so that the fireproof expansion sealing elements 52 are prevented from being damaged by external force such as scratching and collision, and the attractiveness of the fireproof door is improved. The utility model discloses a structure is comparatively simple, seals through the cooperation of the door body 1, door frame 2 and fire prevention inflation sealing member 52, has effectively improved the fire behavior of preventing fire door.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a second fire door, includes door frame (2) and door body (1) that is located door frame (2), its characterized in that: one side edge of the door body (1) is connected with the door frame (2) through a fireproof hinge (3), the upper end of the door body (1) is connected with the door frame (2) through a fireproof door closer (4), a limiting extension plate (14) is further arranged on the side edge of the door body (1) which is not connected with the door frame (2), grooves (51) are formed in the top of the door frame (2), the two side edges of the door frame (2), one side surface of the door body (1) connected with the door frame (2) and one side surface of the limiting extension plate (14) facing the door frame (2), and fireproof expansion sealing pieces (52) are arranged in the grooves (51).
2. A class b fire rated door as claimed in claim 1, further comprising: the door body (1) comprises two door plates (12) which are oppositely arranged, a plate core (13) is clamped between the two door plates (12), the plate core (13) is formed by splicing plate-shaped door cores, and a gap between the door cores is filled with fireproof glue.
3. A fire rated door as claimed in claim 2, wherein: the thickness of the groove (51) is longer than that of the fireproof expansion sealing element (52), and the fireproof expansion sealing elements (52) on the two side faces of the door panel (12) and the fireproof expansion sealing elements (52) on the corresponding side door frame (2) are arranged in a staggered mode.
4. A fire rated door as claimed in claim 3, wherein: each door panel (12) and each door frame (2) are made of a galvanized cold-rolled steel sheet, and the door frames (2) are formed by bending.
5. A class B fire rated door as claimed in claim 4, further comprising: the front and back surfaces of the door body (1) are provided with handles (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220723174.0U CN217400762U (en) | 2022-03-30 | 2022-03-30 | B-level fireproof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220723174.0U CN217400762U (en) | 2022-03-30 | 2022-03-30 | B-level fireproof door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217400762U true CN217400762U (en) | 2022-09-09 |
Family
ID=83140320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220723174.0U Active CN217400762U (en) | 2022-03-30 | 2022-03-30 | B-level fireproof door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217400762U (en) |
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2022
- 2022-03-30 CN CN202220723174.0U patent/CN217400762U/en active Active
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