Fire door for equipment room with ventilation and smoke prevention performance

Abstract

The application discloses an equipment room fireproof door with ventilation and smoke prevention performance, and aims to provide a reasonable structure, fire resistance, good smoke prevention performance and ventilation and heat dissipation effect, which comprises a door frame, a door leaf and a hinge, a shutter device is arranged on the middle lower part of the door leaf, the shutter device comprises a shutter frame, a plurality of movable blades which are sequentially and movably connected on the shutter frame, a linkage assembly which is connected on the movable blades, a heat-sensitive assembly which is arranged on the shutter frame and used for controlling the operation of the linkage assembly, and an elastic member which is used for providing a restoring force for the linkage assembly, one end of the elastic member is fixed on the shutter frame, and the other end is connected with the linkage assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of doors, in particular to a fire door for equipment room with ventilation and smoke prevention performance. BACKGROUND

[0002] Safety doors are widely used in important public buildings such as high-rise buildings, shopping malls, hotels, entertainment places, etc. As an extremely important part of building fire protection facilities, the quality of the product is very important.

[0003] Important equipment rooms of various buildings need to meet the Class A fire resistance requirements, so the doors of the equipment rooms should also be Class A fireproof doors. Moreover, since the equipment is not only valuable but also has a certain degree of operational safety risk, the doors of the equipment rooms not only need to have anti-theft performance, but also should be closed when necessary. The traditional safety doors of the equipment rooms cannot be compatible because most of the equipment generates heat during operation, and the high temperature in the closed working environment will force the equipment to stop running, so the windows need to be opened at all times, while the fireproof door needs a closed structure, which will lead to poor ventilation of the internal space of the equipment. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to solve the problems existing in the prior art, and to provide a fire door for equipment room with reasonable structure, good fire resistance, smoke prevention performance and ventilation and heat dissipation effect.

[0005] To solve the above technical problems, the present application provides the following technical scheme:

[0006] A fire door for equipment room with ventilation and smoke prevention performance, comprising a door frame, a door leaf and a hinge, a louver device is arranged on the middle and lower part of the door leaf, the louver device comprises a louver frame, a plurality of movable blades which are sequentially and movably connected on the louver frame, a linkage assembly connected to the movable blades, a heat-sensitive assembly arranged on the louver frame for controlling the operation of the linkage assembly, and an elastic member for providing a restoring force to the linkage assembly, one end of the elastic member is fixed on the louver frame, and the other end is connected to the linkage assembly.

[0007] Preferably, the heat-sensitive assembly comprises a fuse clamp, a heat-sensitive fuse and a working arm, one end of the heat-sensitive fuse is fixed on the fuse clamp, and the other end is connected to the working arm, one end of the working arm is connected to the linkage assembly.

[0008] Preferably, the upper moving rod is connected to the working arm, and the lower moving rod is connected to the elastic member.

[0009] Preferably, a fireproof expansion sealing strip is arranged on the movable blade, and a rotating shaft is connected between the movable blade and the louver frame.

[0010] Preferably, the elastic element is a restoring spring.

[0011] Preferably, a first sealing element and a second sealing element are provided between the door frame and the door leaf.

[0012] Preferably, the door leaf includes a leaf frame and a fireproof door core panel disposed within the leaf frame, wherein both the leaf frame and the door frame are die-cast from galvanized steel sheet.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The fireproof door for the equipment room of this invention features a steel frame and door leaf. The door leaf is filled with a fireproof core board with excellent fire resistance, ensuring the fire resistance of the door and providing strong anti-theft performance. Furthermore, it is designed with a louvered device, which facilitates ventilation and heat dissipation. In the event of a fire, the heat-sensitive component activates, causing the linkage component to operate and close the movable louvers, preventing smoke and fire from escaping from the room and affecting the surrounding environment. This achieves fire safety requirements without compromising ventilation and heat dissipation. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of a fire door for equipment rooms with ventilation and smoke prevention functions according to the present invention;

[0016] Figure 2 For the present invention Figure 1 A schematic diagram of the louver device in the AA direction in the open state;

[0017] Figure 3 For the present invention Figure 1 A schematic diagram of the closed state of the louver device in the AA direction;

[0018] Figure 4 For the present invention Figure 1 A schematic diagram of the BB direction;

[0019] Figure 5 For the present invention Figure 1 A schematic diagram in the CC direction;

[0020] Figure 6 For the present invention Figure 1 A magnified view of part 'a';

[0021] Figure 7 For the present invention Figure 4 A magnified view of part b. Detailed Implementation

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0023] Please refer to Figures 1 to 7 The fireproof door for equipment room with ventilation and smoke prevention performance comprises a door frame 1, a door leaf 2 and a hinge 3. A shutter device 4 is arranged on the middle lower part of the door leaf 2. The shutter device 4 comprises a shutter frame 41, a plurality of movable blades 42 which are sequentially and movably connected on the shutter frame 41, a linkage assembly 43 connected on the movable blades 42, a heat-sensitive assembly 44 arranged on the shutter frame 41 for controlling the operation of the linkage assembly 43, and an elastic member 45 for providing a restoring force for the linkage assembly 43. One end of the elastic member 45 is fixed on the shutter frame 41, and the other end is movably connected with the linkage assembly 43. In the present application, during daily work, the linkage assembly 43 is kept in a specific state under the pulling force of the heat-sensitive assembly 44 to ensure that the movable blades 42 on the shutter frame 41 are always opened. At this time, the elastic member 45 is in a compressed state under the action of the linkage assembly 43, so as to ensure that the equipment room is in a ventilation and heat dissipation state. When a fire occurs and the air temperature exceeds 70℃, the heat-sensitive fuse in the heat-sensitive assembly 44 is melted within 40 seconds. The heat-sensitive assembly 44 no longer provides a stable pulling force for the linkage assembly 43, triggering the work of the elastic member 45 to provide a restoring force to make the linkage assembly 43 operate and control the movable blades 42 to close, so as to realize the automatic closing function of the shutter device 4 when a fire occurs, and ensure that the smoke and fire cannot escape from the room to affect the surrounding environment, and realize the safety requirement of fire prevention without affecting ventilation and heat dissipation.

[0024] The heat-sensitive assembly 44 comprises a fuse clamp 441, a heat-sensitive fuse 442 and a working branch 443. One end of the heat-sensitive fuse 442 is fixed on the fuse clamp 441, and the other end is connected with the working branch 443. One end of the working branch 443 is movably connected with the linkage assembly 43. In a conventional state, the pulling force of the heat-sensitive assembly 44 is realized through the working branch 443. When the heat-sensitive fuse 442 is melted, one end of the working branch 443 is fixedly connected with the fuse clamp 441 through the heat-sensitive fuse 442. In a conventional state, the pulling force of the heat-sensitive assembly 44 is realized through the working branch 443. The heat-sensitive fuse 442 is melted within 40 seconds when the air temperature reaches 70℃. The working branch 443 no longer provides a force for the operation of the linkage assembly 43.

[0025] The linkage assembly 43 comprises a plurality of sets of linkage arms 431 and movement rods 432 linked in sequence, the upper movement rod 432 is connected with the working support arm 443, and the lower movement rod 432 is connected with the elastic member 45; the linkage arms 431 and the movement rods 432 are cooperatively operated to control the opening and closing of the shutter device 4; when the working support arm 443 provides a force through the upper movement rod 432, the movable blade 42 is always opened; when the elastic member 45 provides a restoring force through the lower movement rod 432, the movable blade 42 is always closed; the structure is simple and the operation is very stable.

[0026] The movable blade 42 is provided with a fireproof expansion sealing strip 5, and a rotating shaft 6 is connected between the movable blade 42 and the shutter frame 41; when the temperature rises to above 200℃, the fireproof expansion sealing strip 5 starts to expand rapidly with high temperature, completely fills the gap of the shutter, and ensures that the smoke and fire cannot escape from the room to affect the surrounding environment.

[0027] The elastic member 45 is a restoring spring, which can provide a stable restoring force.

[0028] The first sealing member 7 and the second sealing member 8 are provided between the door frame 1 and the door leaf 2, and are fireproof and smokeproof sealing strips with good rebound performance; the door frame 1 and the door leaf 2 are overlapped with the fireproof and smokeproof sealing strips with good compression and rebound performance, so as to ensure the sealing performance of the overlapping part.

[0029] The door leaf 2 comprises a leaf frame 21 and a fireproof door core plate 22 arranged in the leaf frame 21; the leaf frame 21 and the door frame 1 are both made of zinc-plated steel plates by die casting; the frame is made of zinc-plated steel material, which ensures the fireproof performance of the door body and has strong anti-theft performance.

[0030] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fire door for equipment rooms having a smoke ventilation performance, comprising a door frame, a door leaf and a hinge, characterized in that: The lower part of the door leaf is provided with a shutter device, the shutter device comprises a shutter frame, a plurality of movable leaves which are sequentially and movably connected on the shutter frame, a linkage assembly connected on the movable leaves, a heat-sensitive assembly arranged on the shutter frame for controlling the operation of the linkage assembly, and an elastic member for providing a restoring force to the linkage assembly, one end of the elastic member is fixed on the shutter frame, and the other end is movably connected with the linkage assembly, the heat-sensitive assembly comprises a fuse clamp, a heat-sensitive fuse and a working support arm, one end of the heat-sensitive fuse is fixed on the fuse clamp, and the other end is connected with the working support arm, one end of the working support arm is movably connected with the linkage assembly, the linkage assembly comprises a plurality of sets of linkage arms and movement rods which are sequentially and movably connected, the upper movement rod is connected with the working support arm, and the lower movement rod is connected with the elastic member, the linkage arms and the movement rods are cooperatively operated to control the opening and closing of the shutter device, when the working support arm provides a force through the upper movement rod, the movable leaves are always opened, and when the elastic member provides a restoring force through the lower movement rod, the movable leaves are always closed, a fireproof expansion sealing strip is arranged on the movable leaves, and a rotating shaft is connected between the movable leaves and the shutter frame.

2. The fire door for equipment room with smoke ventilation performance according to claim 1, characterized in that: The elastic member is a restoring spring.

3. The fire door for equipment room with smoke ventilation performance according to claim 1, characterized in that: First and second sealing members are arranged between the door frame and the door leaf.

4. The fire door for equipment room with smoke ventilation performance according to claim 1, characterized in that: The door leaf comprises a leaf frame and a fireproof door core plate arranged in the leaf frame, and the leaf frame and the door frame are both made of zinc-plated steel plates by die casting.

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