Fire door with window

Abstract

The utility model discloses a fireproof door with window belongs to fireproof door technical field, including the door board, the surface of door board is provided with fireproof glass window and the material window, the upper and lower sides of fireproof glass window are equipped with a plurality of smoke exhaust hole that penetrates the door board, and the surface of door board is equipped with the track, and the baffle that is used for selectively closing the material window is slidably installed in the track, and the surface of baffle is installed with the positioning assembly that is used for locking it in the material window closed position, door board is equipped with inductive type sealing assembly at fireproof glass window, and this assembly is used for automatically closing fireproof glass window and a plurality of smoke exhaust hole under the preset condition, and the baffle and inductive type sealing assembly are inlaid with sealing strip on the side of contact with door board. The utility model has daily convenience and security, can distinguish fire source position and make the optimal response.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, and in particular to a fire door with a window. Background Technology

[0002] Fire doors are a crucial component of fire-resistant partitions in buildings. Their main function is to effectively prevent the spread of fire and smoke for a certain period of time, creating valuable time for personnel evacuation, fire rescue, and property protection.

[0003] With social development and improved living standards, people have placed higher demands on the functionality of fire doors. Traditional fire doors are usually a single, opaque panel. While they ensure fire resistance, they present many inconveniences in daily use. For example, users cannot observe the real-time situation inside and outside the door, which may lead to incorrect judgments in emergencies due to a lack of information. At the same time, for places where small items need to be frequently passed (such as residences, offices, or hospital wards), it is extremely inconvenient to open the entire heavy fire door every time.

[0004] To address these issues, some fire doors with observation windows have emerged on the market. These fire doors achieve visibility by embedding special fire-resistant glass. However, to ensure fire resistance, these fire-resistant glass windows are usually completely sealed, which cannot solve the problem of smoke extraction in the early stages of a fire. Smoke is the main cause of casualties in a fire, and effectively removing indoor smoke in the early stages of a fire is crucial to ensuring the safety of people. Utility Model Content

[0005] The purpose of this invention is to combine everyday convenience with safety, and to be able to distinguish the location of a fire source and make the best response.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fireproof door with a window, comprising a door panel, the surface of which is provided with a fireproof glass window and a delivery window, the upper and lower sides of which are provided with a plurality of smoke exhaust holes penetrating the door panel, the surface of which is also provided with a track, a baffle for selectively closing the delivery window is slidably installed in the track, and a positioning component for locking the baffle in the closed position of the delivery window is installed on the surface of the baffle;

[0007] The door panel is equipped with an induction sealing component at the fireproof glass window. This component is used to automatically close the fireproof glass window and several smoke exhaust holes under preset conditions. Both the baffle and the induction sealing component have sealing strips embedded on the side that contacts the door panel.

[0008] As a further description of the above technical solution: the positioning component includes a plurality of first positioning blocks and second positioning blocks fixedly installed on the door panel, and a sliding rod is slidably installed on the surface of the baffle. The sliding rod cooperates with the first positioning blocks and the second positioning blocks to achieve the positioning of the baffle.

[0009] As a further description of the above technical solution: the inductive sealing assembly includes a detector disposed on the outside of the door panel for detecting fire signals, and a sealing plate is slidably connected to the door panel. The sealing plate is movable between a sealed position covering the fireproof glass window and the smoke exhaust hole and an initial position without covering.

[0010] As a further description of the above technical solution: the inductive sealing assembly also includes a first magnetic block installed on the sealing plate, and a second magnetic block installed on the door plate. When the sealing plate is in the initial position, the first magnetic block and the second magnetic block attract each other through magnetic force to lock the sealing plate. The miniature push rod installed on the door plate is used to push the first magnetic block and the second magnetic block to separate.

[0011] As a further description of the above technical solution: the detector is electrically connected to the micro push rod and is configured to drive the micro push rod to release the magnetic lock when the detector detects a preset fire signal, thereby moving the sealing plate from the initial position to the sealing position.

[0012] As a further description of the above technical solution: the size and stroke of the sealing plate are configured so that when it moves to the sealing position, it can simultaneously cover the fireproof glass window and several smoke exhaust holes.

[0013] As a further description of the above technical solution: on the surfaces of the baffle and the inductive sealing assembly that are in contact with the door panel, there are embedded sealing strips, and the sealing strips are fire-resistant, expanding, flexible sealing strips.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0015] By simultaneously installing fire-resistant glass windows and delivery windows on the door panel, the daily usability of the fire door is greatly improved. The fire-resistant glass windows meet the needs of daily observation, while the delivery windows facilitate the rapid transfer of small items, avoiding the inconvenience of frequently opening the entire door. The matching sliding baffle and its positioning components ensure that the delivery windows can be closed when not in use, ensuring the integrity and safety of the fire door.

[0016] Furthermore, by incorporating smoke vents and sensor-activated sealing components, fire doors can distinguish the location of fire sources and respond optimally. When the fire source is located inside the door, the smoke vents are initially open, allowing toxic fumes generated indoors to be expelled immediately, reducing indoor smoke concentration and pressure, and creating a safer environment for personnel to escape. When the fire source is located outside the door, the detector can quickly detect the danger signal and automatically trigger the sealing plate to fall, instantly sealing the fireproof glass windows and all smoke vents, effectively preventing external flames and dense smoke from entering and isolating the danger from the outside. Attached Figure Description

[0017] Figure 1 A perspective view of the present invention is shown;

[0018] Figure 2 A cross-sectional view of the present invention is shown;

[0019] Figure 3 A perspective view of the miniature push rod and positioning assembly of this utility model is shown;

[0020] Figure 4 A cross-sectional view of the present invention is shown;

[0021] Figure 5 A schematic diagram of the baffle and sealing strip of this utility model is shown.

[0022] Legend:

[0023] 10. Door panel; 101. Smoke vent; 102. First positioning block; 103. Second positioning block; 11. Fireproof glass window; 12. Delivery window; 13. Baffle; 14. Sealing strip; 15. Sliding rod; 16. Detector; 17. Sealing plate; 18. First magnetic block; 19. Second magnetic block; 20. Miniature push rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5This utility model provides a technical solution: a fire door with a window, including a door panel 10, which is the main structure of the fire door. Its material and structure meet national or industry fire protection standards. A fireproof glass window 11 and a delivery window 12 are provided on the main body of the door panel 10. The fireproof glass window 11 is inlaid with fireproof glass that meets the fire protection requirements. Its main function is to facilitate the observation of each other's situation by people inside and outside the door while ensuring fire protection performance. For example, in the event of a fire, it is convenient for rescuers to observe the internal situation, or for people inside to observe whether the external evacuation route is safe.

[0026] The delivery window 12 is a moderately sized opening that allows for the transfer of small items, such as documents, meals, or parcels, without having to open the entire fire door in normal use, thus improving the convenience of daily use.

[0027] In order to effectively exhaust smoke in the early stage of a fire, several smoke exhaust holes 101 penetrating the door panel 10 are opened on the upper and lower sides of the fireproof glass window 11. In normal conditions or in the early stage of an indoor fire, these smoke exhaust holes 101 are open to exhaust the smoke and toxic gases generated indoors, reduce the indoor smoke concentration and pressure, and create favorable conditions for personnel evacuation and escape.

[0028] To close the delivery window 12 when needed, the surface of the door panel 10 is provided with a set of tracks, within which a baffle 13 is slidably installed. The baffle 13 is also made of fire-resistant material. When it is necessary to close the delivery window 12, the baffle 13 is manually slid to move it to a position that completely covers the delivery window 12. To ensure that the baffle 13 can be securely locked in the closed position, a positioning component is installed on the surface of the baffle 13.

[0029] Specifically, the positioning assembly includes a first positioning block 102 and a second positioning block 103 disposed on the door panel 10, and a slide rod 15 linearly slidably mounted on the surface of the baffle 13. When the baffle 13 slides to a predetermined closed position, the slide rod 15 can be operated to move its end to the first positioning block 102, thereby restricting the baffle 13 from moving upward. Figure 1 As shown, this matching and positioning structure is simple and reliable, ensuring that the baffle 13 will not open by itself due to vibration or accidental contact when it is closed, thus guaranteeing the sealing and fireproof integrity of the delivery window 12 when it is closed.

[0030] In order to achieve automatic sealing of the fireproof glass window 11 and the smoke exhaust hole 101 under specific conditions (such as external fire), the door panel 10 is equipped with a set of sensor-type sealing components at the fireproof glass window 11.

[0031] Furthermore, the inductive sealing assembly includes detectors 16 disposed on both sides of the door panel 10. The detectors 16 can be equipped with smoke sensors as needed. Specifically, the detectors 16 can be JTY-GD-EIH12 wireless smoke sensors. The function of the detectors 16 is to monitor the environmental parameters outside the door in real time. When a characteristic signal of an external fire is detected (e.g., smoke concentration or temperature exceeds a preset threshold), the detectors 16 will generate and send a trigger signal to the control system (not shown in the figure). The control system is a PLC (Programmable Logic Controller), a microcontroller system, or an embedded computer.

[0032] The component also includes a vertically movable sealing plate 17. The sealing plate 17 is disposed on the surface of the fireproof glass window 11 and slidably connected to the door panel 10 via a groove. The size design of the sealing plate 17 allows it to completely cover the fireproof glass window 11 and all smoke exhaust holes 101 on its upper and lower sides when moved to a designated position. In the initial state, the sealing plate 17 is in the upper, unobstructed position, not affecting the view or smoke exhaust function. Figure 1 As shown.

[0033] In order to keep the sealing plate 17 in the initial unobstructed position, a first magnetic block 18 is installed on the upper part of the sealing plate 17, and a second magnetic block 19 is embedded in the corresponding position of the door panel 10. In the initial state, the first magnetic block 18 and the second magnetic block 19 attract each other and lock the sealing plate 17 firmly in the open position by magnetic force to prevent it from accidentally slipping off.

[0034] In order to automatically close the sealing plate 17 after receiving a signal from the detector 16, a miniature push rod 20 is also installed on the door panel 10. The miniature push rod 20 is an electrically controlled linear actuator. When the control system receives a fire signal from the detector 16, it will immediately drive the miniature push rod 20 to move. The push rod end of the miniature push rod 20 will instantly push the sealing plate 17, separating it from the second magnetic block 19, thereby releasing the magnetic lock. Once the lock is released, the sealing plate 17 will slide down rapidly under its own gravity, eventually completely covering and sealing the fireproof glass window 11 and the smoke exhaust hole 101.

[0035] By simultaneously installing a fireproof glass window 11 and a delivery window 12 on the door panel 10, the daily usability of the fire door is greatly improved. The fireproof glass window 11 meets the needs of daily observation, while the delivery window 12 facilitates the rapid transfer of small items, avoiding the hassle of frequently opening the entire door. The matching sliding baffle 13 and its positioning components ensure that the delivery window can be closed when not in use, ensuring the integrity and safety of the fire door.

[0036] Furthermore, by setting up smoke exhaust vents 101 and sensor-activated sealing components, the fire door can distinguish the location of the fire source and make the optimal response. When the fire source is located inside the door, the smoke exhaust vents 101 are initially open, which can immediately exhaust the toxic smoke generated indoors, reduce the indoor smoke concentration and pressure, and create a safer environment for personnel to escape. When the fire source is located outside the door, the detector 16 can quickly detect the danger signal and automatically trigger the sealing plate 17 to fall, instantly sealing the fireproof glass window 11 and all smoke exhaust vents 101, effectively preventing external flames and dense smoke from entering and isolating the danger from the outside.

[0037] Furthermore, to enhance the sealing effect of each part, the sealing plate 17 in the baffle 13 and the sensor-type sealing assembly are both inlaid with sealing strips 14 on the side that contacts the door panel 10. The sealing strips 14 are fire-resistant, expanding, flexible sealing strips. The sealing strips 14 have good elasticity and sealing performance at room temperature, and can effectively isolate airflow and sound. Once exposed to high temperature, the sealing strips 14 will rapidly expand due to heat, and the volume will increase significantly, thereby completely filling all gaps and greatly enhancing the fire resistance and smoke isolation performance of the entire fire door.

[0038] For example, sealing strip 14 can be selected from M TM Expantrol TM E-FIS fire-resistant intumescent flexible sealing strip for doors and windows is an intumescent tape used to seal the air gap between doors, frames, and glass. It helps prevent fire, smoke, toxic gases, and other byproducts from spreading to adjacent areas. The intumescent material expands when heated, forming a hardened carbonized body.

[0039] Workflow:

[0040] Initial state: In normal use or when no fire occurs, the fire door is in its initial state. At this time, the baffle 13 opens or closes the delivery window 12 as needed, and the sealing plate 17 of the sensor-operated sealing assembly is locked in an unobstructed position by the magnetic force of the first magnetic block 18 and the second magnetic block 19. The fireproof glass window 11 has a clear view, and the smoke exhaust holes 101 on its upper and lower sides are completely unobstructed.

[0041] Indoor fire scenario: When a fire occurs inside a residence or building (inside the door), the initial smoke will be naturally discharged through the open smoke vent 101, which plays a role in assisting smoke exhaust and slowing down the accumulation of indoor smoke pressure, which is conducive to the safe evacuation of people inside. At this time, since the fire source is inside, the external detector 16 will not be triggered, the sealing plate 17 remains stationary, and the fireproof glass window 11 allows external rescuers to observe the internal situation. Depending on the fire situation, the user can decide whether to manually slide the baffle 13 to close the delivery window 12 to enhance safety.

[0042] Outdoor fire scenario: When a fire occurs outside the fire door (e.g., in a stairwell or neighboring apartment), the detector 16 installed outside the door will detect smoke or high-temperature signals and immediately trigger the control system. The control system drives the miniature push rod 20 to move, pushing the first magnetic block 18 to release the magnetic lock on the sealing plate 17. The sealing plate 17 slides down rapidly under gravity, and the fire-resistant expansion flexible sealing strip 14 on it covers the fireproof glass window 11 and the smoke exhaust hole 101 while tightly adhering to the door panel 10. If the fire spreads and the temperature rises, the sealing strip 14 will expand due to heat, completely sealing the gaps. In this way, it can effectively prevent external flames, high temperatures and toxic fumes from entering the room through the smoke exhaust hole 101 and the glass window area, providing valuable safe refuge space for the people inside.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fire door with a window, comprising a door panel (10), characterized in that: The surface of the door panel (10) is provided with a fireproof glass window (11) and a delivery window (12). The fireproof glass window (11) has several smoke exhaust holes (101) penetrating the door panel (10) on its upper and lower sides. The surface of the door panel (10) is also provided with a track. A baffle (13) for selectively closing the delivery window (12) is slidably installed in the track. The surface of the baffle (13) is provided with a positioning component for locking it in the closed position of the delivery window (12). The door panel (10) is equipped with an induction sealing component at the fireproof glass window (11). This component is used to automatically close the fireproof glass window (11) and several smoke exhaust holes (101) under preset conditions. Both the baffle (13) and the induction sealing component are inlaid with sealing strips (14) on the side that contacts the door panel (10).

2. A fire door with a window according to claim 1, characterized in that: The positioning component includes several first positioning blocks (102) and second positioning blocks (103) fixedly installed on the door panel (10). A slide rod (15) is slidably installed on the surface of the baffle (13). The slide rod (15) works in conjunction with the first positioning blocks (102) and the second positioning blocks (103) to achieve the positioning of the baffle (13).

3. A fire door with a window according to claim 1, characterized in that: The inductive sealing assembly includes a detector (16) disposed on the outside of the door panel (10) for detecting fire signals. A sealing plate (17) is slidably connected to the door panel (10). The sealing plate (17) is movable between a sealed position covering the fireproof glass window (11) and the smoke exhaust hole (101) and an initial position without covering.

4. A fire door with a window according to claim 3, characterized in that: The inductive sealing assembly also includes a first magnetic block (18) mounted on the sealing plate (17) and a second magnetic block (19) mounted on the door panel (10). When the sealing plate (17) is in the initial position, the first magnetic block (18) and the second magnetic block (19) attract each other through magnetic force to lock the sealing plate (17). The miniature push rod (20) mounted on the door panel (10) is used to push the first magnetic block (18) and the second magnetic block (19) to separate.

5. A fire door with a window according to claim 4, characterized in that: The detector (16) is electrically connected to the micro push rod (20) and is configured to drive the micro push rod (20) to release the magnetic lock when the detector (16) detects a preset fire signal, thereby moving the sealing plate (17) from the initial position to the sealing position.

6. A fire door with a window according to claim 5, characterized in that: The size and travel of the sealing plate (17) are configured such that when it moves to the sealing position, it can simultaneously cover the fireproof glass window (11) and several smoke vents (101).

7. A fire door with a window according to claim 5, characterized in that: On the surfaces of the baffle (13) and the sealing plate (17) of the inductive sealing assembly that come into contact with the door panel (10), a sealing strip (14) is embedded. The sealing strip (14) is a fire-resistant, expandable, flexible sealing strip.

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