Steel glass window fireproof door with escape exit design

By introducing flame-retardant plates, sealing plates, and limiting plates into steel-framed fire doors, the problem of smoke diffusion caused by gaps is solved, achieving efficient sealing and fireproofing effects and improving the safety and reliability of fire doors.

CN223753966UActive Publication Date: 2026-01-02PENINSULA CONSTRUCTION (ZHUHAI) CO LTD
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Patent Information

Application Number
CN202423276346.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-01-02
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

The gap between the bottom of the existing steel-framed glass fire door and the ground allows smoke and fire to spread, failing to effectively block them and affecting the safety of personnel evacuation and the fire prevention effect.

Method used

A fire door with an escape hatch made of steel glass was designed. It adopts a structure of flame-retardant plate, sealing plate and limiting plate. Through the cooperation of spring telescopic rod and movable plate, the fire door can be tightly fitted to the gap between the fire door and the ground, preventing the diffusion of smoke and oxygen, and protecting the door closer from flame damage.

Benefits of technology

Effectively isolates the spread of smoke and fire, enhances the sealing performance and reliability of fire doors, and ensures safe evacuation of personnel and protection of the internal environment in the event of a fire.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of fireproof doors, and discloses a steel glass window fireproof door with escape exit design, which comprises a door frame, fireproof doors are hinged inside two ends of the door frame, one end face of each fireproof door is fixedly connected with a handle, and the top of the other end of each fireproof door is fixedly connected with a door closer. One end of the door closer is fixedly connected to the outer surface of the door frame, limiting plates are fixedly connected to the middle point positions of the two sides of the bottom end of the fireproof door, a plastic plate is clamped between the interiors of the two limiting plates, a spring telescopic rod is fixedly connected to the interior of the bottom end of the fireproof door, and a movable plate is fixedly connected to the movable end of the spring telescopic rod; according to the fireproof door, sealing can be effectively formed, smoke is effectively prevented from diffusing to the outside through gaps, meanwhile, oxygen can be effectively isolated, the sealing performance and the fireproof effect of the fireproof door are enhanced, it is ensured that fire and smoke are effectively blocked in the case of a fire, and the safety of the internal environment is protected.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to fireproof door technical field especially, it relates to a steel glass window fireproof door with escape opening design. BACKGROUND

[0002] With the continuous expansion of modern building scale, the internal structure of building is complex, once the fire occurs, the difficulty of personnel evacuation increases, and timely and effective escape measures are particularly important. The traditional fireproof door mainly has fire resistance stability, integrity and heat insulation, which can prevent the spread of fire for a certain time and provide valuable evacuation time for personnel. However, in order to evacuate personnel quickly when fire occurs, it is necessary to open the escape passage in a short time. The existing fireproof door design often cannot meet the needs of rapid escape while ensuring the fireproof function, and the design and opening and closing speed of the escape opening directly affect the evacuation efficiency and safety of personnel.

[0003] However, the existing steel glass window fireproof door with escape opening design has a gap between the bottom end and the ground, and when the fire occurs, the smoke and fire spread to the outside through the gap, which cannot form effective blocking. UTILITY MODEL CONTENTS

[0004] The utility model discloses to the prior art a kind of steel glass window fireproof door with escape opening design, and the bottom end between the ground has gap, and when the fire occurs, smoke and fire spread to the outside through gap, which cannot form effective blocking, and the following technical solutions are proposed:

[0005] A steel glass window fireproof door with escape opening design, comprising a door frame, the door frame is hinged with a fireproof door at both ends, the fireproof door is fixedly connected with a handle at one end, the fireproof door is fixedly connected with a door closer at the other end, the door closer is fixedly connected to the outer surface of the door frame at one end, the midpoint position of the bottom end of the fireproof door is fixedly connected with a limiting plate at both sides, a plastic plate is clamped between the two limiting plates, a spring telescopic rod is fixedly connected inside the bottom end of the fireproof door, the movable end of the spring telescopic rod is fixedly connected with a movable plate, the bottom end of the movable plate is fixedly connected with a extrusion plate, and the bottom end of the extrusion plate is bonded with a fire-retardant plate.

[0006] Preferably, a clamping groove is formed at both sides of the fireproof door inside the door closer, a clamping block is clamped at the clamping groove position inside the fireproof door, a protective sleeve is fixedly connected at one end of the clamping block, and a sealing plate is fixedly connected to the protective sleeve close to the fireproof door.

[0007] Preferably, a limiting groove is formed in the limiting plate, a plastic plate is clamped in the limiting groove, and the top end surface of the plastic plate is in close contact with the bottom end surface of the fire-retardant plate.

[0008] Preferably, the fireproof board is rectangular in shape, and the length of the fireproof board is the same as that of the fireproof door.

[0009] Preferably, the card block is provided with a bevel near one end of the card slot.

[0010] Preferably, one end surface of the sealing plate is attached to the surface of the fireproof door.

[0011] The utility model discloses the beneficial effects are:

[0012] (1) can form the sealing effectively, effectively insulate the smoke through the gap diffusion to the outside, can effectively insulate oxygen simultaneously, enhance the sealing performance and fireproof effect of fireproof door, ensure under the fire condition, the fire and smoke are effectively blocked, protect the safety of internal environment.

[0013] (2) can effectively protect the door closer not be damaged by the flame, can also effectively prevent the smoke along the gap and enter the protective sleeve inside, prevent the normal use of door closer because of the temperature is too high, has promoted the reliability of overall fireproof system. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The structure schematic diagram of the steel glass window fireproof door with escape opening design is shown;

[0015] Figure 2 The installation structure schematic diagram of the door closer is shown;

[0016] Figure 3 The installation structure schematic diagram of the fireproof door is shown;

[0017] Figure 4 The installation structure schematic diagram of the fireproof door is shown; Figure 3 The installation structure schematic diagram of the fireproof door is shown;

[0018] Figure 5 The installation structure schematic diagram of the sealing plate is shown;

[0019] Figure 6 The installation structure schematic diagram of the plastic plate is shown;

[0020] Figure 7 The installation structure schematic diagram of the fireproof board is shown;

[0021] In the drawing: 1, door frame; 2, fireproof door; 3, handle; 4, door closer; 5, limiting plate; 6, plastic plate; 7, spring telescopic rod; 8, movable plate; 9, extrusion plate; 10, fireproof board; 11, card slot; 12, card block; 13, protective sleeve; 14, sealing plate. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0023] Example 1

[0024] This utility model provides a steel-framed fire door with an escape hatch, such as... Figures 1 to 7 As shown, the device includes a door frame 1, which is installed at the escape route. Fire doors 2 are hinged to both ends of the door frame 1. Steel-framed glass windows are fixedly installed inside the fire doors 2. Fireproof seals are fixedly connected at the connection between the two fire doors 2. A handle 3 is fixedly connected to one end of the fire door 2. A door closer 4 is fixedly connected to the top of the other end of the fire door 2. One end of the door closer 4 is fixedly connected to the outer surface of the door frame 1. Limiting plates 5 are fixedly connected to the midpoints on both sides of the bottom of the fire door 2. A plastic plate 6 is snapped between the two limiting plates 5. A spring telescopic rod 7 is fixedly connected to the bottom of the fire door 2. A movable plate 8 is fixedly connected to the movable end of the spring telescopic rod 7. An extrusion plate 9 is fixedly connected to the bottom of the movable plate 8. A flame-retardant plate 10 is bonded to the bottom of the extrusion plate 9. The flame-retardant plate 10 is made of fiber cement board.

[0025] like Figure 1 and Figure 4 As shown, slots 11 are provided on both sides of the door closer 4 inside the fire door 2. A block 12 is engaged in the slot 11 inside the fire door 2. A protective sleeve 13 is fixedly connected to one end of the block 12. A sealing plate 14 is fixedly connected to the end of the protective sleeve 13 near the fire door 2. The sealing plate 14 is made of calcium silicate board. The protective sleeve 13 can effectively protect the door closer 4 from damage by flames, ensure that the door closer 4 can work normally, and improve the reliability of the overall fire protection system.

[0026] like Figure 1 and Figure 6 As shown, a limiting groove is provided inside the limiting plate 5, and a plastic plate 6 is snapped into the limiting groove. The top surface of the plastic plate 6 is in contact with the bottom surface of the flame-retardant plate 10. When the flame-retardant plate 10 is not needed, the limiting plate 5 can be snapped into the limiting groove to effectively limit the flame-retardant plate 10 and prevent it from contacting the ground, which would affect the normal use of the fire door 2.

[0027] like Figure 1 and Figure 6 As shown, the flame-retardant board 10 is rectangular in shape, and its length is the same as that of the fire door 2. It can fit tightly against the gap between the fire door 2 and the ground, thereby effectively forming a seal and preventing smoke from spreading to the outside through the gap. At the same time, it can isolate oxygen, enhance the sealing performance and fireproof effect of the fire door 2, and ensure that in the event of a fire, the fire and smoke are effectively blocked, protecting the safety of the internal environment.

[0028] As Figure 1 and Figure 5 The card block 12 is provided with an inclined surface near one end of the card slot 11, which can make the card block 12 smoothly enter the card slot 11, improving the convenience and efficiency of assembly.

[0029] As Figure 1 and Figure 2 The surface of the sealing plate 14 is attached to the surface of the fireproof door 2, which can effectively prevent the fire and smoke from entering the protective sleeve 13 through the gap, prevent the high temperature from affecting the normal use of the door closer 4, and improve the reliability of the door closer 4.

[0030] Working principle: during actual use, first, the protective sleeve 13 is taken out, the card block 12 is aligned with the card slot 11, then the protective sleeve 13 is moved towards the card slot 11, and the card block 12 is in contact with the surface of the card slot 11 as the protective sleeve 13 is slowly moved, since the end of the card block 12 near the card slot 11 is an inclined surface, the card block 12 can smoothly enter the card slot 11, and the sealing plate 14 is attached to the fireproof door 2 as the protective sleeve 13 is moved, which can effectively protect the door closer 4 from being damaged by fire, and prevent the smoke from entering the protective sleeve 13 through the gap, prevent the high temperature from affecting the normal use of the door closer 4, and improve the reliability of the overall fireproof system.

[0031] Then when the fire occurs, the personnel are all out of the fireproof door 2, and the door closer 4 controls the fireproof door 2 to automatically close, when the fire spreads to the outside along the gap between the fireproof door 2 and the ground, the plastic plate 6 is burned off, since the plastic plate 6 no longer limits the extrusion plate 9, the spring telescopic rod 7 is no longer extruded by the extrusion plate 9, and the spring telescopic rod 7 is moved downwards under the elastic force of the spring telescopic rod 7, the movable plate 8 is moved to drive the extrusion plate 9 to move synchronously, the fireproof plate 10 is attached to the ground, which can tightly attach to the gap between the fireproof door 2 and the ground, effectively form a seal, effectively isolate the smoke from spreading to the outside through the gap, and effectively isolate the oxygen, enhance the sealing performance and fireproof effect of the fireproof door 2, and ensure that the fire and smoke are effectively blocked in the case of fire, and the safety of the internal environment is protected.

[0032] The above examples are only used to illustrate the technical solutions of the present application, and not to limit them.

Claims

1. A steel fire door with escape opening design for glazing, characterised in that, The utility model relates to a fireproof door, including door frame (1), the inside both ends of door frame (1) are hinged with fireproof door (2), one end surface of fireproof door (2) is fixedly connected with handle (3), the other end top of fireproof door (2) is fixedly connected with door closer (4), one end of door closer (4) is fixedly connected on the outer surface of door frame (1), the bottom both sides of fireproof door (2) are fixedly connected with limit board (5) at midpoint position, the inside between two limit board (5) is clamped with plastic board (6), the bottom inside of fireproof door (2) is fixedly connected with spring telescopic link (7), the movable end of spring telescopic link (7) is fixedly connected with movable plate (8), the bottom of movable plate (8) is fixedly connected with extrusion plate (9), the bottom of extrusion plate (9) is bonded with fire -retardant board (10).

2. A steel fire door with escape-leaf design according to claim 1, characterized in that: The inside of fireproof door (2) is provided with clamping groove (11) at both sides of door closer (4), the inside of fireproof door (2) is clamped with clamping block (12) at the position of clamping groove (11), one end of clamping block (12) is fixedly connected with protective sleeve (13), one end of protective sleeve (13) is fixedly connected with sealing plate (14) close to fireproof door (2).

3. A steel fire door with escape opening design according to claim 1, characterized in that: The inside of limit board (5) is provided with limit slot, the inside of limit slot is clamped with plastic board (6), the top end surface of plastic board (6) is mutually attached with the bottom end surface of fire -retardant board (10).

4. A steel fire door with escape opening design according to claim 1, characterized in that: The shape of fire -retardant board (10) is rectangle, the length of fire -retardant board (10) is same with the length of fireproof door (2).

5. A steel fire door with escape opening design according to claim 2, characterized in that: One end of clamping block (12) is provided with inclined plane close to clamping groove (11).

6. A steel fire door with escape opening design according to claim 2, characterized in that: One end surface of sealing plate (14) is mutually attached with the surface of fireproof door (2).