Fireproof rolling door with emergency passage

By introducing an electric push rod drive system into the fire-fighting roller shutter door, the additional thrust generated by the circuit path is used to solve the problem of the difficulty in opening escape routes during a fire, thus achieving the effect of rapid escape.

CN224338885UActive Publication Date: 2026-06-09NANJING HUAXIN FIRE EQUIP MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING HUAXIN FIRE EQUIP MFG CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing fireproof roller shutters are difficult to open during a fire, especially due to air pressure differences and smoke obscuring visibility, making it difficult to quickly open escape routes.

Method used

A fire-fighting roller shutter door with an emergency exit was designed. A circuit path is formed by movable and fixed conductive plates, which drives an electric push rod to move the door panel and provide additional thrust to open the escape route.

Benefits of technology

When smoke obscures visibility, an electric push rod provides additional thrust to balance the air pressure difference, ensuring that the escape route can be opened quickly and facilitating the escape of personnel.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224338885U_ABST
    Figure CN224338885U_ABST
Patent Text Reader

Abstract

This utility model provides a fire-fighting roller shutter door with an emergency exit, belonging to the field of roller shutter door technology. It includes a door panel one and a door panel two, which are movably connected; an emergency exit opening on one outer wall of each door panel one and two; an upper door panel inside the door panel one; a lower door panel inside the door panel two, which are movably connected to the upper door panel; and an opening assembly on the lower door panel. The opening assembly includes a groove on one outer wall of the lower door panel; and a door handle that slides along the inner wall of the groove. This utility model, through a horizontally sliding door handle, provides a means of opening the door for evacuees whose vision is obscured by smoke. Furthermore, by utilizing the contact between a movable conductive plate and a fixed conductive plate, a circuit is formed with an electric push rod and a power source, allowing the electric push rod to move the door panels one and two, providing additional thrust for opening the emergency exit.
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Description

Technical Field

[0001] This utility model belongs to the field of roller shutter door technology, specifically relating to a fire-fighting roller shutter door with an emergency exit. Background Technology

[0002] Fire-resistant roller shutters are fire-resistant and heat-insulating facilities suitable for large openings in buildings. They are widely used in fire-resistant partitions in industrial and civil buildings, effectively preventing the spread of fire and protecting life and property.

[0003] Some existing fire-resistant roller shutters are equipped with escape routes so that people located on one side of the fire-resistant roller shutter and in the fire scene can pass through the fire-resistant roller shutter to escape. However, after a fire starts, the pressure on one side of the fire door is high, and there is a large difference in air pressure on both sides of the fire door, making it difficult to open the door used for the escape route. In addition, the presence of smoke obstructs the vision of the people escaping, making it difficult for them to quickly open the escape route.

[0004] Therefore, a fire-fighting roller shutter door with an emergency exit is proposed. Summary of the Invention

[0005] This utility model provides a fire-fighting roller shutter door with an emergency exit, the purpose of which is to solve the problems mentioned above.

[0006] This utility model embodiment provides a fire-fighting roller shutter door with an emergency passage, including door panel one and door panel two, which are movably connected; an emergency passage opening on one outer wall of door panel one and door panel two; an upper door panel inside door panel one; a lower door panel inside door panel two, which are movably connected to the upper door panel; and a door opening assembly on the lower door panel. The door opening assembly includes: a groove on one outer wall of the lower door panel; a door handle sliding on the inner wall of the groove; a linkage platform at the center of the outer wall of the door handle; a movable conductive sheet on the outer wall of the linkage platform; a cavity on the inner wall of the groove near the outer side of the linkage platform; a fixed conductive sheet on the inner wall of the cavity; and a spring between the inner wall of the cavity and the outer wall of the linkage platform; mounting platforms on the inner walls of door panel one and door panel two respectively; and an electric push rod on the outer wall of the mounting platform.

[0007] Furthermore, an opening indicator is embedded on one outer wall of the second door panel, and the opening indicator is arrow-shaped;

[0008] By adopting the above technical solution, an indication is provided for the opening direction of door panel one and door panel two.

[0009] Furthermore, guide grooves are provided on the inner sidewalls of both door panel one and door panel two, and guide blocks are provided on the outer sidewalls of both the upper and lower door panels. The guide blocks are located inside the guide grooves, and the guide blocks and guide grooves slide against each other.

[0010] By adopting the above technical solution, the stability of door panel one and door panel two when pushed is ensured by the sliding of the guide block and the guide groove, and it is also convenient for door panel one and door panel two to be pushed open.

[0011] Furthermore, guide rails are provided on the outer wall of both door panel one and door panel two adjacent to the emergency exit opening;

[0012] By adopting the above technical solution, it is convenient for door panel one and door panel two to be wound up along the guide.

[0013] Furthermore, there are two movable conductive plates and two fixed conductive plates, which are symmetrically arranged on the outer side wall of the linkage table and the inner side wall of the cavity, respectively.

[0014] By adopting the above technical solution, through two sets of movable conductive plates and fixed conductive plates, the movable conductive plates and fixed conductive plates can be connected to form a circuit path when the door handle moves horizontally to the left and right.

[0015] Furthermore, when the movable conductive sheet and the fixed conductive sheet come into contact, they form a circuit path with the electric push rod and the power supply;

[0016] By adopting the above technical solution and utilizing the formation of the circuit path, the electric push rod can push door panel one and door panel two to move through its output end on one side, thereby facilitating the horizontal opening of door panel one and door panel two.

[0017] The beneficial effects of this utility model are as follows:

[0018] This utility model provides a means for escaping personnel whose vision is obscured by smoke by using a door handle that can slide horizontally left and right. When the movable and fixed conductive plates come into contact, they form a circuit with the electric push rod and the power supply, which allows the electric push rod to move door panel one and door panel two, providing additional thrust for opening the emergency passage. This avoids the problem of difficulty in opening due to large air pressure differences on both sides of the emergency passage, making it easier for escaping personnel to quickly open the escape passage and escape.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the upper and lower door panels according to an embodiment of the present utility model;

[0023] Figure 3 These are sectional views of door panel one and door panel two according to an embodiment of this utility model;

[0024] Figure 4 This is a partial cross-sectional view of the lower door panel according to an embodiment of the present utility model;

[0025] Figure 5 This is an embodiment of the present utility model. Figure 4 Enlarged diagram of point A in the diagram;

[0026] Reference numerals: 1. Door panel one; 2. Door panel two; 3. Emergency exit; 4. Upper door panel; 5. Lower door panel; 6. Door opening assembly; 61. Groove; 62. Door handle; 63. Linkage platform; 64. Movable conductive sheet; 65. Cavity; 66. Fixed conductive sheet; 67. Spring; 68. Mounting platform; 69. Electric push rod; 7. Door opening indicator; 8. Guide groove; 9. Guide block; 10. Guide rail. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Reference Figure 1-5This utility model embodiment proposes a fire-fighting roller shutter door with an emergency passage, including door panel 1 and door panel 2. Door panel 1 is located above door panel 2. Door panel 1 and door panel 2 are connected by a soft material and are movably connected. An emergency passage opening 3 is provided on one outer wall of both door panel 1 and door panel 2. Door panel 1 has an upper door panel 4 inside, and door panel 2 has a lower door panel 5 inside. The upper door panel 4 and the lower door panel 5 are connected by a soft material and are movably connected.

[0029] A groove 61 for the door opening assembly 6 is formed on one outer wall of door panel 1. A door handle 62 is slidably connected inside the groove 61. A linkage platform 63 is set at the center of one outer wall of the door handle 62. A movable conductive plate 64 is set on the outer wall of the linkage platform 63 adjacent to the door handle 62. A cavity 65 is formed on the inner wall of the groove 61 near the outer side of the linkage platform 63 and the movable conductive plate 64. A fixed conductive plate 66 is set on one inner wall of the cavity 65. There are two movable conductive plates 64 and two fixed conductive plates 66. The two movable conductive plates 64 and the two fixed conductive plates 66 are symmetrically arranged on the outer wall of the linkage platform 63 and the inner wall of the cavity 65, respectively. Through the two sets of movable conductive plates 64 and the two fixed conductive plates 66, the door opening assembly 62 is opened. The conductive sheet 64 and the fixed conductive sheet 66 allow the movable conductive sheet 64 and the fixed conductive sheet 66 to connect and form a circuit when the door handle 62 moves horizontally to the left and right. A spring 67 is provided between one inner wall of the cavity 65 and one outer wall of the linkage platform 63. A mounting platform 68 is provided on one inner wall of both door panel 1 and door panel 2. An electric push rod 69 is provided on one outer wall of the mounting platform 68. When the movable conductive sheet 64 and the fixed conductive sheet 66 are in contact, they form a circuit with the electric push rod 69 and the power supply. By utilizing the circuit, the electric push rod 69 can push door panel 1 and door panel 2 to move through its output end on one side, thereby facilitating the horizontal opening of door panel 1 and door panel 2.

[0030] An opening indicator 7 is embedded on one outer wall of door panel 2. The opening indicator 7 is arrow-shaped and provides an indication of the opening direction of door panel 1 and door panel 2. Guide grooves 8 are provided on the inner side walls of door panel 1 and door panel 2. Guide blocks 9 are provided on the outer side walls of upper door panel 4 and lower door panel 5. The guide blocks 9 are located inside the guide grooves 8 and slide with the guide grooves 8. Guide rails 10 are provided on the outer side walls of door panel 1 and door panel 2 adjacent to the emergency passage opening 3.

[0031] The specific implementation method is as follows: In the event of a fire, the fire-fighting roller shutter door is activated and closed. When people on one side of the fire-fighting roller shutter door need to escape, the emergency exit 3 provides an emergency escape route. Under the guidance of the door opening indicator 7, the escaping personnel insert their fingers into the groove 61 and push the door handle 62 to slide within the groove 61. When smoke obscures the view, regardless of whether the door handle 62 is pushed to the left or right, the linkage 63 and the movable conductive plate 64 move synchronously. During the movement, the movable conductive plate 64 contacts the fixed conductive plate. When the movable conductive plate 64 and the fixed conductive plate 66 come into contact, they form a circuit path with the electric push rod 69 and the power supply. By utilizing the formation of the circuit path, the electric push rod 69 can push the door panel 1 and the door panel 2 to move through its output end on one side and create a gap. At this time, under the action of the gap, the air pressure on both sides of the door panel 1 and the door panel 2 is balanced. When the door handle 62 is continuously pushed, the door panel 1 and the door panel 2 slide, thereby exposing the emergency passage 3, which makes it easier for escapees to cross the emergency passage 3 to escape.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fire-fighting roller shutter door with an emergency exit, characterized in that: It includes door panel one (1) and door panel two (2), which are movably connected; Emergency passage openings (3) are provided on the outer walls of one side of door panel 1 (1) and door panel 2 (2); The upper door panel (4) is located inside the door panel (1); A lower door panel (5) is provided inside the second door panel (2), and the lower door panel (5) and the upper door panel (4) are movably connected; A door opening assembly (6) is provided on the lower door panel (5); The door opening component (6) includes: A groove (61) is formed on the outer wall of one side of the lower door panel (5); A door handle (62) that slides on the inner wall of the groove (61); A linkage platform (63) is located at the center of the outer wall on one side of the door handle (62); A movable conductive sheet (64) is provided on one side of the outer wall of the linkage table (63); A cavity (65) is formed on the inner wall of the groove (61) near the outer side of the linkage table (63); A fixed conductive sheet (66) is provided on one side of the inner wall of the cavity (65); and A spring (67) is provided between the inner wall of one side of the cavity (65) and the outer wall of one side of the linkage table (63); Mounting platforms (68) are respectively provided on the inner wall of one side of door panel 1 (1) and door panel 2 (2); An electric push rod (69) is provided on the outer wall of one side of the mounting platform (68).

2. A fire-fighting roller shutter door with an emergency exit as described in claim 1, characterized in that: An opening indicator (7) is embedded on one side of the outer wall of the second door panel (2), and the opening indicator (7) is arrow-shaped.

3. A fire-fighting roller shutter door with an emergency exit as described in claim 1, characterized in that: Guide grooves (8) are provided on the inner sidewalls of door panel 1 (1) and door panel 2 (2), and guide blocks (9) are provided on the outer sidewalls of the upper door panel (4) and lower door panel (5). The guide blocks (9) are located inside the guide grooves (8), and the guide blocks (9) and guide grooves (8) slide against each other.

4. A fire-fighting roller shutter door with an emergency exit as described in claim 1, characterized in that: Both door panel 1 (1) and door panel 2 (2) are provided with guide rails (10) on the outer wall of the side adjacent to the emergency passage entrance (3).

5. A fire-fighting roller shutter door with an emergency exit as described in claim 1, characterized in that: Two movable conductive plates (64) and two fixed conductive plates (66) are provided. The two movable conductive plates (64) and the two fixed conductive plates (66) are respectively symmetrically arranged on the outer side wall of the linkage table (63) and the inner side wall of the cavity (65).

6. A fire-fighting roller shutter door with an emergency exit according to claim 1, characterized in that: When the movable conductive sheet (64) and the fixed conductive sheet (66) come into contact, they form a circuit path with the electric push rod (69) and the power supply.