Fireproof rolling door with emergency exit

By designing a quick-opening structure and cooling components for the escape door in the fireproof rolling shutter door, the problems of inconvenient quick opening and high temperature in the existing technology have been solved, thereby improving the convenience and safety of escape.

CN224314860UActive Publication Date: 2026-06-02NANJING 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
2025-06-06
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing fire-resistant roller shutters lack a quick-opening structure for escape doors, making them inconvenient to open quickly during a fire. Furthermore, the high temperatures of the roller shutter body and the escape door surface can easily cause burns to those trying to escape, resulting in poor practicality.

Method used

The escape door features a quick-opening structure, employing a combination of soft magnets and limit rods, along with an outward-opening door design. It is also equipped with cooling components, including a water pump, water tank, and nozzles, which cool the roller shutter body and the escape door using the water pump and nozzles.

Benefits of technology

It enables the rapid opening of escape doors, avoids burns to escapees, enhances fire resistance and cooling efficiency, and improves the convenience and safety of escape.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224314860U_ABST
    Figure CN224314860U_ABST
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Abstract

This utility model relates to the field of fireproof roller shutter door technology and discloses a fireproof roller shutter door with an emergency exit, including a mounting frame and a top shell fixedly mounted on the top of the mounting frame, and a roller shutter body disposed inside the mounting frame. A cooling component is disposed at one end of the mounting frame near the top shell. An escape door is rotatably mounted on the inner side of the roller shutter body. A fixing block is fixedly mounted on the side of the escape door near the roller shutter body, and a limiting hole is formed on the outer wall of the fixing block. This fireproof roller shutter door with an emergency exit, through the design of soft magnets one and two, a limiting rod, and limiting holes one and two, facilitates the opening and closing of the escape door in the event of a fire, making it highly practical. The cooling component design facilitates the cooling of the roller shutter body and the escape door, preventing the roller shutter body and the escape door from overheating and causing injury to the escapee, while also effectively slowing the spread of fire, making it highly practical.
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Description

Technical Field

[0001] This utility model relates to the field of fireproof roller shutter door technology, specifically a fireproof roller shutter door with an emergency exit. Background Technology

[0002] Fire-resistant roller shutters are fire-resistant facilities that control the raising and lowering of the curtain through a mechanical transmission device. Their core function is to form a physical barrier in the event of a fire, blocking the lateral spread of fire and smoke, and buying time for personnel evacuation and fire rescue. Fire-resistant roller shutters with emergency exits are devices that can be quickly closed to prevent the spread of fire in the event of a fire, while providing an escape route in emergency situations. These roller shutters are usually equipped with a manual release device to ensure normal operation in the event of a power failure.

[0003] Chinese Utility Model Patent Publication No. CN210858501U discloses an emergency exit for a fireproof roller shutter door. This emergency exit features a simple structure, can rise and fall with the roller shutter door, and its size and installation position are unrestricted, prioritizing ease of personnel access. It also possesses advantages such as fire resistance, smoke prevention, tight sealing, and easy opening and closing. However, this emergency exit lacks a quick-opening structure for the escape door, making it inconvenient to open quickly during a fire, hindering escape. Furthermore, it lacks a cooling mechanism, resulting in high surface temperatures on the roller shutter body and escape door during a fire, potentially causing burns to escapees. Therefore, its practicality is poor, making widespread use impractical. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a fireproof roller shutter door with an emergency exit. It can effectively solve the problems of existing technologies that do not have a quick-opening structure for the escape door, which makes it inconvenient to open the escape door quickly in the event of a fire, hindering the escape of people. In addition, the lack of a cooling mechanism means that the surface temperature of the roller shutter body and the escape door is high in the event of a fire, which can easily cause burns to people trying to escape. As a result, the practicality is poor and it is not convenient to promote its use.

[0005] The technical solution adopted by this utility model is as follows: a fireproof roller shutter door with an emergency exit, including a mounting frame and a top shell fixedly mounted on the top of the mounting frame, and a roller shutter body disposed inside the mounting frame. A cooling component is disposed at one end of the mounting frame near the top shell. An escape door is rotatably mounted on the inner side of the roller shutter body. A fixing block one is fixedly mounted on the side of the escape door near the roller shutter body. A limit hole one is opened on the outer wall of the fixing block one. A fixing block two is fixedly mounted on the side of the roller shutter body away from the escape door. A limit hole two is opened on the outer wall of the fixing block two. A limit rod adapted to the limit hole one and the limit hole two is inserted into the outer wall of the fixing block one.

[0006] Preferably, the cooling component includes a water pump, a water tank, a first water pipe, a second water pipe, a mounting base, a third water pipe, and a nozzle. The water pump and the water tank are fixedly installed on the inner side of the top shell. The first water pipe is arranged between the water pump and the water tank. The second water pipe is arranged along the outer edge of the water pump. The mounting base is fixedly installed at one end of the mounting bracket near the top shell. The third water pipe is arranged on the outer wall of the mounting base. The nozzle is fixedly installed on the outer wall of the third water pipe. The first, second, and third water pipes are connected, and the nozzle faces downward.

[0007] With the above technical solution, in the event of a fire, the staff will start the water pump. The water pump will draw water from the water tank through water pipe one, then discharge it through water pipe two to the inside of water pipe three, and finally spray it out through the nozzles. This will help cool down the roller shutter and escape door, preventing the roller shutter and escape door from getting too hot and causing injury to the escapees. It will also effectively slow down the spread of fire and is highly practical.

[0008] Preferably, there are multiple identical nozzles, and the multiple nozzles are distributed at equal intervals.

[0009] The above technical solution, through the design of multiple nozzles, increases the water output and spray range, further improving the cooling efficiency.

[0010] Preferably, the escape door is an outward-opening door, and the escape door is compatible with the roller shutter body.

[0011] With the above technical solution, in the event of a fire, the indoor air pressure is greater than the outdoor air pressure. The escape door is designed to open outwards, making it easy for evacuees to open and thus highly practical.

[0012] Preferably, the escape door and the roller shutter body are made of the same material, and the interior of the roller shutter body is filled with fireproof material, which is perlite.

[0013] Through the above technical solutions, because perlite has excellent fire resistance and low thermal conductivity, the design using perlite as a filling fireproof material can effectively improve the overall fire resistance and has high practicality.

[0014] Preferably, the escape door has an installation groove 1 on the side near the roller shutter body, and a soft magnet 1 is inserted and installed inside the installation groove 1. The roller shutter body has a groove and an installation groove 2 on the inner side, and a soft magnet 2 is inserted and installed inside the installation groove 2. The soft magnet 1 and the soft magnet 2 are magnetically connected, and the escape door abuts against the roller shutter body.

[0015] Using the above technical solution, the staff can rotate the escape door so that it is located inside the groove. At the same time, the first soft magnet and the second soft magnet attract each other, causing the escape door to come into contact with the roller shutter body, thus enabling the escape door to close quickly.

[0016] Preferably, the limiting rod passes through limiting hole one and limiting hole two, and the limiting hole one and limiting hole two have the same diameter.

[0017] With the above technical solution, after the escape door is closed, the staff can insert the limit rod through the limit hole one and the limit hole two to lock the escape door. In the event of a fire, the escapee only needs to pull out the limit rod and then hit the escape door to open it. Then, they can pass through the escape door to complete the escape. It is highly practical.

[0018] Compared with the prior art, this utility model provides a fireproof roller shutter door with an emergency exit, which has the following advantages:

[0019] 1. This fireproof roller shutter door with emergency exits, through the design of soft magnet one and soft magnet two, limit rod, limit hole one and limit hole two, makes it easy for escapees to open the escape door in the event of a fire, facilitating their escape. It is highly practical. The design of the cooling component facilitates the cooling of the roller shutter body and the escape door, preventing the roller shutter body and the escape door from getting too hot and causing injury to escapees. It can also effectively slow down the spread of fire, making it highly practical. The design of multiple nozzles increases the water output and spray range, further improving the cooling efficiency.

[0020] 2. This fireproof roller shutter door with emergency exits utilizes perlite, which has excellent fire resistance and low thermal conductivity. The design using perlite as the fireproof filling material effectively improves the overall fire resistance and makes it highly practical. In the event of a fire, the indoor air pressure is greater than the outdoor air pressure. The escape door is designed to open outwards, making it easy for escaping persons to open the escape door, further enhancing its practicality. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0023] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the installation structure of the cooling component of this utility model;

[0025] Figure 5 This is a schematic diagram of the mounting structure of the soft magnet of this utility model;

[0026] Figure 6 This is a schematic diagram of the installation structure of the escape door of this utility model;

[0027] Figure 7 This utility model Figure 6 Enlarged structural diagram at point B;

[0028] Figure 8 This is a schematic diagram of a half-section of the roller shutter body of this utility model.

[0029] The components include: 1. Mounting bracket; 2. Top shell; 3. Roller shutter body; 4. Cooling component; 401. Water pump; 402. Water tank; 403. Water pipe one; 404. Water pipe two; 405. Mounting base; 406. Water pipe three; 407. Sprinkler head; 5. Escape door; 6. Mounting groove one; 7. Soft magnet one; 8. Groove; 9. Mounting groove two; 10. Soft magnet two; 11. Fixing block one; 12. Limiting hole one; 13. Fixing block two; 14. Limiting hole two; 15. Limiting rod. Detailed Implementation

[0030] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1:

[0032] like Figures 1-8 As shown, the present invention provides a fireproof roller shutter door with an emergency exit, including a mounting frame 1 and a top shell 2 fixedly mounted on the top of the mounting frame 1, and a roller shutter body 3 disposed inside the mounting frame 1. A cooling component 4 is disposed at one end of the mounting frame 1 near the top shell 2. An escape door 5 is rotatably mounted on the inner side of the roller shutter body 3. A fixing block 11 is fixedly mounted on the side of the escape door 5 near the roller shutter body 3. A limiting hole 12 is opened on the outer wall of the fixing block 11. A fixing block 23 is fixedly mounted on the side of the roller shutter body 3 away from the escape door 5. A limiting hole 24 is opened on the outer wall of the fixing block 23. A limiting rod 15 adapted to the limiting hole 12 and the limiting hole 24 is inserted into the outer wall of the fixing block 11.

[0033] Specifically, the escape door 5 has a mounting groove 6 on the side near the roller shutter body 3. A soft magnet 7 is inserted into the inner side of the mounting groove 6. The inner side of the roller shutter body 3 has a recess 8 and a mounting groove 9. A soft magnet 10 is inserted into the inner side of the mounting groove 9. The soft magnet 7 and the soft magnet 10 are magnetically connected, and the escape door 5 abuts against the roller shutter body 3. The advantage is that when the staff rotates the escape door 5, it is positioned inside the recess 8. At the same time, the soft magnet 7 and the soft magnet 10 attract each other, causing the escape door 5 to abut against the roller shutter body 3, thus enabling the escape door 5 to close quickly.

[0034] Specifically, the limiting rod 15 passes through limiting hole 12 and limiting hole 14, and the diameters of limiting hole 12 and limiting hole 14 are the same. The advantage is that after closing the escape door 5, staff can then pass the limiting rod 15 through limiting hole 12 and limiting hole 14 to lock and open the escape door 5. In the event of a fire, escapees only need to pull out the limiting rod 15 and then strike the escape door 5 to open it, after which they can pass through the escape door 5 to complete their escape. This design is highly practical.

[0035] Specifically, escape door 5 opens outwards and is compatible with the roller shutter body 3. The advantage is that during a fire, the indoor air pressure is higher than the outdoor air pressure; the outward-opening design of escape door 5 makes it easy for evacuees to open, thus enhancing its practicality.

[0036] Example 2:

[0037] like Figures 2-8 As shown, as an improvement on the previous embodiment, in order to further facilitate the cooling of the roller shutter body 3 and the escape door 5, the cooling component 4 specifically includes a water pump 401, a water tank 402, a first water pipe 403, a second water pipe 404, a mounting base 405, a third water pipe 406, and a nozzle 407. The water pump 401 and the water tank 402 are fixedly installed on the inner side of the top shell 2. The first water pipe 403 is arranged between the water pump 401 and the water tank 402. The second water pipe 404 is arranged on the outer edge of the water pump 401. The mounting base 405 is fixedly installed at one end of the mounting bracket 1 near the top shell 2. The third water pipe 406 is arranged on the outer wall of the mounting base 405. The nozzle 407 is fixedly installed on the outer wall of the third water pipe 406. The first water pipe 403, the second water pipe 404, and the third water pipe 406 are connected. The nozzle 407 faces downward. The advantage is that in the event of a fire, the staff can start the water pump 401. The water pump 401 draws water from the water tank 402 through the first water pipe 403, then discharges it through the second water pipe 404 into the third water pipe 406, and finally sprays it out through the nozzle 407. This facilitates the cooling of the roller shutter body 3 and the escape door 5, preventing the roller shutter body 3 and the escape door 5 from getting too hot and causing injury to the escapees. At the same time, it can also effectively slow down the spread of fire, making it highly practical.

[0038] Specifically, there are multiple identical nozzles 407, which are evenly spaced. The advantage is that the design of multiple nozzles 407 increases the water output and spray range, further improving cooling efficiency.

[0039] Specifically, the escape door 5 and the roller shutter body 3 are made of the same material. The interior of the roller shutter body 3 is filled with fire-resistant material, namely perlite. The advantage is that perlite has excellent fire-resistant properties and low thermal conductivity; therefore, using perlite as the fire-resistant filling material effectively improves the overall fire resistance and makes it highly practical.

[0040] Working principle: During installation, the operator rotates the escape door 5, positioning it inside the groove 8. Simultaneously, the soft magnet 7 and soft magnet 10 attract each other, causing the escape door 5 to come into contact with the roller shutter body 3, enabling the escape door 5 to close quickly. After closing the escape door 5, the operator inserts the limiting rod 15 through the limiting hole 12 and the limiting hole 14, locking the escape door 5 in place. In case of fire, the escapee simply pulls out the limiting rod 15 and then strikes the escape door 5 to open it, allowing them to escape through the door. It is highly practical. Simultaneously, the operator starts the water pump 401, which pumps water from the water tank 402 through the water pipe 403. The water is drawn out and discharged through water pipe 404 into the interior of water pipe 406, and finally sprayed out through nozzle 407. This facilitates the cooling of the roller shutter body 3 and the escape door 5, preventing the roller shutter body 3 and the escape door 5 from overheating and causing injury to the escapees. It can also effectively slow the spread of fire, making it highly practical. The escape door 5 is designed to open outwards, making it easy for escapees to open. The design of multiple nozzles 407 increases the water output and spray range, further improving the cooling efficiency. Because perlite has excellent fire resistance and low thermal conductivity, the design of using perlite as the filling fireproof material can effectively improve the overall fire resistance performance, making it highly practical.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fireproof roller shutter door with an emergency exit, comprising a mounting frame (1) and a top shell (2) fixedly mounted on the top of the mounting frame (1), and a roller shutter body (3) disposed inside the mounting frame (1), characterized in that: A cooling component (4) is provided at one end of the mounting bracket (1) near the top shell (2). An escape door (5) is rotatably installed on the inner side of the roller shutter body (3). A fixing block (11) is fixedly installed on the side of the escape door (5) near the roller shutter body (3). A limiting hole (12) is opened on the outer wall of the fixing block (11). A fixing block (13) is fixedly installed on the side of the roller shutter body (3) away from the escape door (5). A limiting hole (14) is opened on the outer wall of the fixing block (13). A limiting rod (15) that matches the limiting hole (12) and the limiting hole (14) is inserted into the outer wall of the fixing block (11).

2. A fireproof roller shutter door with an emergency exit as described in claim 1, characterized in that: The cooling component (4) includes a water pump (401), a water tank (402), a first water pipe (403), a second water pipe (404), a mounting base (405), a third water pipe (406), and a nozzle (407). The water pump (401) and the water tank (402) are fixedly installed on the inner side of the top shell (2). The first water pipe (403) is arranged between the water pump (401) and the water tank (402). A second water pipe (404) is provided on the outer edge of the mounting bracket (1). A mounting base (405) is fixedly installed on one end of the mounting bracket (1) near the top shell (2). A third water pipe (406) is provided on the outer wall of the mounting base (405). A nozzle (407) is fixedly installed on the outer wall of the third water pipe (406). The first water pipe (403), the second water pipe (404), and the third water pipe (406) are connected. The nozzle (407) faces downward.

3. A fireproof roller shutter door with an emergency exit as described in claim 2, characterized in that: There are multiple identical nozzles (407), and the multiple nozzles (407) are distributed at equal intervals.

4. A fireproof roller shutter door with an emergency exit as described in claim 1, characterized in that: The escape door (5) is an outward-opening door, and the escape door (5) is compatible with the roller shutter body (3).

5. A fireproof roller shutter door with an emergency exit as described in claim 1, characterized in that: The escape door (5) is made of the same material as the roller shutter body (3), and the interior of the roller shutter body (3) is filled with fireproof material, which is perlite.

6. A fireproof roller shutter door with an emergency exit as described in claim 1, characterized in that: The escape door (5) has an installation groove (6) on the side near the roller shutter body (3). A soft magnet (7) is inserted into the inner side of the installation groove (6). The inner side of the roller shutter body (3) has a groove (8) and an installation groove (9). A soft magnet (10) is inserted into the inner side of the installation groove (9). The soft magnet (7) and the soft magnet (10) are magnetically connected. The escape door (5) is in contact with the roller shutter body (3).

7. A fireproof roller shutter door with an emergency exit as described in claim 1, characterized in that: The limiting rod (15) passes through the limiting hole one (12) and the limiting hole two (14), and the limiting hole one (12) and the limiting hole two (14) have the same diameter.