Fireproof door with ventilation function

Abstract

This utility model provides a fire door with ventilation function, including a door leaf, a door frame, and a ground layer. The door frame stands on the ground layer, and the door leaf is embedded in the door frame and connected to the door frame by hinges. The lower half of the door leaf is embedded with a fire-resistant device, which includes a ventilation blade frame, ventilation blades, fire-resistant blade shafts, fire-resistant blades, a temperature sensor, and a transmission mechanism. Fire-resistant blades are arranged within the ventilation blade frame by several equidistantly spaced fire-resistant blade shafts. The temperature sensor and transmission mechanism are located on one side of the ventilation blade frame. The temperature sensor is communicatively connected to the transmission mechanism, which drives several fire-resistant blade shafts to rotate synchronously, thereby opening and closing the fire-resistant blades to achieve rapid switching between normal ventilation and fire isolation functions. This utility model aims to solve the problems of poor ventilation performance, easily damaged ventilation devices, and poor fire resistance and sealing of traditional fire doors, thereby optimizing ventilation performance, improving the durability of ventilation devices, and enhancing fire resistance.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment, specifically to a fire door with ventilation function. Background Technology

[0002] In the field of fire protection equipment, fire doors are crucial facilities for ensuring the safety of entrances and exits in high-fire-risk areas. However, traditional fire doors have several shortcomings in practical applications. Specifically, firstly, traditional fire doors lack good ventilation performance, often needing to be kept open during normal use to maintain indoor air quality, making them difficult to close in time during a fire, posing a safety hazard. Secondly, the ventilation devices of traditional fire doors are usually independent components, easily damaged by external factors, leading to reduced ventilation efficiency or even failure, requiring frequent maintenance. Finally, traditional fire doors have poor fire resistance and sealing performance; the connection between the door leaf and the frame, as well as the internal structure of the door leaf, are prone to deformation at high temperatures, resulting in poor sealing and allowing fire and smoke to spread easily, weakening the fire protection effect. Based on these issues, this utility model proposes a fire door with ventilation function. Utility Model Content

[0003] The purpose of this utility model is to address the technical problems existing in the background art by providing a fire door with ventilation function. To achieve the above objective, this utility model employs the following technical solution:

[0004] A fireproof door with ventilation function includes a door leaf, a door frame, and a ground layer. The door frame stands on the ground layer, and the door leaf is embedded in the door frame. The door leaf and the door frame are connected by hinges. The door leaf is characterized in that: the lower half of the door leaf is embedded with a fireproof device, which includes a ventilation blade frame, ventilation blades, fireproof blade shafts, fireproof blades, a temperature sensor, and a transmission mechanism. Fireproof blades are arranged in the ventilation blade frame by a number of equally spaced fireproof blade shafts. The temperature sensor and the transmission mechanism are located on one side of the ventilation blade frame. The temperature sensor is communicatively connected to the transmission mechanism, and the transmission mechanism can drive the number of fireproof blade shafts to rotate synchronously.

[0005] Preferably, there may be two door leaves, which are installed side by side in the door frame. The lower half of each door leaf is equipped with a fireproof device. The fireproof device includes a ventilation blade frame, ventilation blades, fireproof blade shafts, fireproof blades, a temperature sensor, and a transmission mechanism. The fireproof blades are arranged in the ventilation blade frame by a number of equally spaced fireproof blade shafts. The temperature sensor and the transmission mechanism are located on one side of the ventilation blade frame. The temperature sensor is communicatively connected to the transmission mechanism, and the transmission mechanism can drive a number of fireproof blade shafts to rotate synchronously.

[0006] Preferably, the fireproof blade shaft is axially connected to the middle of the fireproof blade, and the fireproof blades on both sides are respectively provided with a reverse bending structure, so that the airflow passes more smoothly on the fireproof blade during ventilation, reducing airflow impact and resistance, and improving ventilation efficiency.

[0007] Preferably, fire-resistant expansion sealing strips are installed between the door leaf and the door frame, and between the door leaf and the fireproof device. The fire-resistant expansion sealing strips will expand rapidly when exposed to high temperatures, thereby better filling the tiny gaps between the door leaf and the door frame, and between the door leaf and the fireproof device, forming a more continuous and dense sealing layer.

[0008] Preferably, the outer surface of the door leaf is covered with a double-layer metal sheet with an air layer and filled with inorganic flame-retardant material. The double-layer metal sheet forms a sturdy shell that can effectively block the invasion of flames and heat, and enhance the fire resistance of the door leaf. The inorganic flame-retardant material has good fire resistance and flame retardancy, and can play a key role in blocking the spread of fire, preventing the fire from penetrating the door leaf and reducing fire losses.

[0009] Compared with the prior art, this utility model has the following advantages:

[0010] 1. Superior ventilation performance: The fire door of this utility model cleverly integrates ventilation and fire protection functions. During daily use, it can keep the indoor ventilation smooth without having to keep the door open, effectively eliminating the safety hazards caused by the constant opening of traditional fire doors, and taking into account both ventilation and fire protection performance.

[0011] 2. Durable ventilation device: The fire door of this utility model integrates the ventilation device inside the door leaf, which avoids direct damage to the ventilation device from external factors, improves the durability of the ventilation device, reduces maintenance requirements, and ensures long-term stability of ventilation efficiency.

[0012] 3. Enhanced fire resistance: The connection between the door leaf and the door frame of this utility model is equipped with a fire-resistant expansion sealing strip, and the internal structure of the door leaf is made of high-temperature resistant material, which can prevent the door leaf from deforming and the sealing from being incomplete under high temperature, effectively blocking the spread of fire and smoke, and enhancing the fire resistance effect. Attached Figure Description

[0013] Figure 1 This is a front view of the single-leaf fire door of this utility model;

[0014] Figure 2 This is a top sectional view of the single-leaf fire door of this utility model;

[0015] Figure 3 This is a front view of the double-leaf fire door of this utility model;

[0016] Figure 4 This is a top sectional view of the double-leaf fire door of this utility model;

[0017] Figure 5 This is a left-side sectional view of the single-opening and double-opening fire doors of this utility model;

[0018] Figure 6 This is an enlarged view of the fireproof blade of this utility model;

[0019] Figure 7 This is an enlarged view of the double-layer metal sheet on the outer surface of the door leaf of this utility model;

[0020] Reference numerals: 1. Door leaf; 2. Door frame; 3. Ground layer; 4. Hinge; 5. Fireproof device; 6. Ventilation blade frame; 7. Ventilation blade; 8. Fireproof blade shaft; 9. Fireproof blade; 10. Temperature sensor; 11. Transmission mechanism; 12. Fireproof expansion sealing strip; 13. Double-layer metal sheet. Detailed Implementation

[0021] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0022] Figure 1 , 2 Figure 5 shows a schematic diagram of the single-leaf fire door of this utility model, including a door leaf 1, a door frame 2, a ground layer 3, a hinge 4, a fireproof device 5, a ventilation blade frame 6, ventilation blades 7, a fireproof blade shaft 8, fireproof blades 9, a temperature sensor 10, a transmission mechanism 11, and a fireproof expansion sealing strip 12. The door leaf 1 is embedded in the door frame 2, and the door leaf 1 and the door frame 2 are connected by the hinge 4. The fireproof device 5 is embedded in the central area of ​​the lower half of the door leaf 1. The fireproof device 5 includes a ventilation blade frame 6, which is two hollow flat cuboid structures. Symmetrically mounted on the front and rear sides of the lower half of the door leaf 1, several ventilation blades 7 are arranged obliquely in the hollow areas of the two ventilation blade frames 6. Several equidistant fireproof blade shafts 8 are set in the middle area between the two rows of ventilation blades 7, and fireproof blades 9 are welded onto each fireproof blade shaft 8. The temperature sensor 10 and the transmission mechanism 11 are installed on the left side of the ventilation blade frame 6. The transmission mechanism 11 is communicatively connected to the temperature sensor 10 and the fireproof blade shafts 8. Fireproof expansion sealing strips 12 are installed between the door leaf 1 and the door frame 2, and between the door leaf 1 and the fireproof device 5. Under normal circumstances, when the temperature sensor 10 detects a normal temperature, it transmits the temperature signal to the transmission mechanism 11. The transmission mechanism 11 drives the fireproof blade shafts 8 to rotate, thereby opening the fireproof blades 9 and maintaining indoor ventilation. When a fire occurs, the temperature sensor 10 detects a temperature change and transmits the temperature signal to the transmission mechanism 11. The transmission mechanism 11 drives the fireproof blade shafts 8 to rotate in the opposite direction, causing the fireproof blades 9 to close, isolating air and preventing the spread of fire.

[0023] Figure 3-5This is a schematic diagram of the double-leaf fireproof door of this utility model, including door leaf 1, door frame 2, ground layer 3, hinge 4, fireproof device 5, ventilation blade frame 6, ventilation blade 7, fireproof blade shaft 8, fireproof blade 9, temperature sensor 10, transmission mechanism 11, and fireproof expansion sealing strip 12. There are two door leaves 1, side-by-side embedded in the door frame 2. The lower half of each door leaf 2 is embedded with the fireproof device 5. The fireproof device 5 includes a ventilation blade frame 6, which consists of two hollow, flat cuboid structures symmetrically distributed below the door leaf 1. On both the front and rear sides of the half section, several ventilation blades 7 are arranged obliquely in the hollow areas of the two ventilation blade frames 6. In the middle area between the two rows of ventilation blades 7, several fireproof blade shafts 8 are arranged at equal intervals. Fireproof blades 9 are welded onto each fireproof blade shaft 8. The temperature sensor 10 and the transmission mechanism 11 are installed on the left side of the ventilation blade frame 6. The transmission mechanism 11 is communicatively connected to the temperature sensor 10 and the fireproof blade shafts 8. Fireproof expansion sealing strips 12 are installed between the door leaf 1 and the door frame 2, and between the door leaf 1 and the fireproof device 5. The double-leaf fire door is a symmetrical design of the single-leaf fire door, and its structure and working principle are basically the same as those of the single-leaf fire door.

[0024] Figure 6 This is an enlarged view of the fireproof blade of this utility model, which includes a ventilation blade frame 6, ventilation blades 7, fireproof blade shafts 8, and fireproof blades 9. Several ventilation blades 7 are arranged obliquely in the hollow areas of the two ventilation blade frames 6. Several fireproof blade shafts 8 are arranged at equal intervals in the middle area between the two rows of ventilation blades 7. The fireproof blade shafts 8 are axially connected to the middle of the fireproof blades 9. The fireproof blades 9 on both sides of the blade shaft 8 are respectively provided with reverse bending structures. The lower side of the upper blade of the fireproof blade 9 is closed on the upper side of the lower blade. When rotation occurs, the blade shaft 8 drives the upper blade of the fireproof blade 9 to move inward and the lower blade to move outward.

[0025] Figure 7 This is an enlarged view of the double-layer metal sheet on the outer surface of the door leaf of this utility model. The double-layer metal sheet 13 with an air layer covers the outer surface of the door leaf 1, and the interior of the door leaf 1 is filled with inorganic flame-retardant material.

[0026] Working principle: When there is no fire, the temperature sensor 10 senses that the ambient temperature is within the normal range and transmits the signal to the transmission mechanism 11. The transmission mechanism 11 drives the fireproof blade shaft 8 to rotate. Driven by the fireproof blade shaft 8, the fireproof blade 9 is in the open state. Air circulates through the inclined ventilation blade 7 in the ventilation blade frame 6 to realize the indoor ventilation function. In this process, the bending design of the ventilation blade 7 helps to optimize the airflow path, reduce airflow impact and resistance, thereby improving ventilation efficiency.

[0027] When a fire occurs and the ambient temperature rises to a certain threshold, the temperature sensor 10 senses the temperature change and transmits the signal to the transmission mechanism 11. The transmission mechanism 11 drives the fireproof blade shaft 8 to rotate. The rotation of the fireproof blade shaft 8 causes the fireproof blades 9 to close. After the fireproof blades 9 close, they fit tightly together to form a sealed barrier, blocking the airflow and preventing the fire and smoke from spreading to other areas through the ventilation channel. At the same time, the fireproof expansion sealing strips 12 installed between the door leaf 1 and the door frame 2, and between the door leaf 1 and the fireproof device 5, will expand rapidly when exposed to high temperatures, further filling the tiny gaps between the door leaf 1 and the door frame 2 and the fireproof device 5, enhancing the sealing effect and improving the fireproof performance of the fire door.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the concept of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fire door with ventilation function, comprising a door leaf (1), a door frame (2), and a ground layer (3), wherein the door frame (2) stands on the ground layer (3), the door leaf (1) is embedded in the door frame (2), and the door leaf (1) and the door frame (2) are connected by a hinge (4), characterized in that: The lower half of the door leaf (1) is embedded with a fireproof device (5). The fireproof device (5) includes a ventilation blade frame (6), ventilation blades (7), fireproof blade shafts (8), fireproof blades (9), a temperature sensor (10), and a transmission mechanism (11). The fireproof blades (9) are arranged in the ventilation blade frame (6) through several equally spaced fireproof blade shafts (8). The temperature sensor (10) and the transmission mechanism (11) are located on one side of the ventilation blade frame (6). The temperature sensor (10) is connected to the transmission mechanism (11) in communication. The transmission mechanism (11) can drive several fireproof blade shafts (8) to operate synchronously.

2. A fire door with ventilation function according to claim 1, characterized in that: The door leaf (1) consists of two parts, which are installed side by side in the door frame (2). The lower half of each door leaf (2) is fitted with a fireproof device (5).

3. A fire door with ventilation function according to claim 1 or 2, characterized in that: The fireproof blade shaft (8) is axially connected to the middle of the fireproof blade (9), and the fireproof blades (9) on both sides are respectively provided with reverse bending structures.

4. A fire door with ventilation function according to claim 1 or 2, characterized in that: Fireproof expansion sealing strips (12) are installed between the door leaf (1) and the door frame (2), and between the door leaf (1) and the fireproof device (5).

5. A fire door with ventilation function according to claim 1 or 2, characterized in that: The outer surface of the door leaf (1) is covered with a double-layer metal sheet (13) with an air layer and the interior is filled with inorganic flame-retardant material.

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