Composite double-track fireproof curtain
By installing automatic sprinkler and drive components on fireproof roller shutters, the problems of traditional fireproof roller shutters being unable to actively extinguish fires and being easily damaged under high temperatures are solved, achieving effective control in the early stages of a fire and protection of the roller shutter surface.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI QUANAN FIRE-FIGHTING SAFETY EQUIP CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional fireproof roller shutters cannot actively extinguish fires and are prone to deformation or damage at high temperatures, making it difficult to effectively control the spread of fire.
A composite double-track fireproof roller shutter was designed, equipped with an automatic sprinkler system and a drive system. The sprinkler system can spray water to reduce the flame temperature and expand the spray range during a fire, while the drive system has electric and manual modes to ensure the stable operation of the roller shutter door.
It enables proactive flame suppression in the early stages of a fire, reduces the temperature of the roller shutter surface, prevents deformation or damage, enhances fire-resistant partitioning, and improves fire control capabilities and reliability.
Smart Images

Figure CN224413481U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roller shutter technology, and in particular to a composite double-track fireproof roller shutter. Background Technology
[0002] Fireproof roller shutters are a common fire-resistant partition in modern building engineering. They can quickly activate in the event of a fire, separating the fire source from other areas, effectively controlling the spread of fire, and buying valuable time for personnel evacuation and fire rescue.
[0003] Traditional fireproof roller shutters can only passively isolate flames through their own fire-resistant materials, and cannot actively extinguish fires. They are difficult to control the spread of fire quickly in the early stages of a fire, and often can only wait for firefighters to arrive on the scene to put out the fire. As a result, the fire may not be effectively controlled in the early stages and may spread rapidly. At the same time, flames and high-temperature smoke will generate strong heat radiation and heat conduction on the curtain surface, making the curtain surface prone to deformation and damage under high temperature. Utility Model Content
[0004] The purpose of this utility model is to solve the problems of traditional fireproof roller shutters being unable to actively extinguish fires and being prone to deformation and damage at high temperatures, and to propose a composite double-track fireproof roller shutter.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A composite double-track fireproof roller shutter includes a frame and a roller shutter body. The frame is equipped with a spraying component that can automatically spray water for fire extinguishing, and the frame is also equipped with a drive component that can drive the roller shutter body to rise and fall.
[0007] The spraying assembly includes a mounting box fixedly installed on one side of the frame, a connecting box fixedly connected to one side of the mounting box, water inlet tanks equidistantly arranged inside the frame, a connecting pipe connecting several water inlet tanks to the connecting box, a spray pipe connected to one side of the water inlet tank, and a swinging component that can control the reciprocating swinging of the spray pipe to increase the spraying range on the frame.
[0008] As a further description of the above technical solution:
[0009] The swinging component includes several fixed frames that are fixedly installed on the frame. A ring and a rotating rod are rotatably connected to the fixed frame, and a connecting member is provided between the ring and the rotating rod.
[0010] As a further description of the above technical solution:
[0011] A worm gear is fixedly connected to one end of the ring extending to the outside of the fixed frame, and a first motor is fixedly connected to one side of the frame, with a worm gear fixedly connected to the output end of the first motor.
[0012] As a further description of the above technical solution:
[0013] The connector is rotatably mounted on the rotating rod, and one end of the connector is rotatably mounted on the ring through a ball joint. The water inlet tank is fixedly mounted on the rotating rod, and the worm gear meshes with the worm.
[0014] As a further description of the above technical solution:
[0015] A through groove is provided on one side of the frame, and a water spray pipe is located between the through grooves. Several nozzles are connected and installed on the water spray pipe.
[0016] As a further description of the above technical solution:
[0017] The drive assembly includes a plurality of mounting rods rotatably mounted on the frame. A second motor is fixedly connected to one side of the frame. A first synchronous belt meshes between the mounting rods and the second motor via a first gear. A turntable is rotatably connected inside the mounting box. A second synchronous belt meshes between the turntable and one of the mounting rods via a second gear.
[0018] Another mounting rod is fixedly connected to the output end of the second motor, and the roller shutter body is wound around the mounting rod.
[0019] As a further description of the above technical solution:
[0020] The roller shutter door body is equipped with inorganic fire-resistant cloth, aluminum silicate fireproof blanket and high temperature resistant cloth, and a smoke sensor is installed on one side of the frame.
[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0022] By installing an automatic water spraying assembly on the roller shutter door body, water can be actively sprayed onto the fire area in the event of a fire. The water droplets disperse and evaporate within the flames, absorbing a large amount of heat and reducing the flame temperature below its critical extinguishing temperature, thus effectively controlling the spread of fire. Simultaneously, water can be sprayed onto the curtain surface of the roller shutter door body. The evaporation of water absorbs heat, effectively reducing the curtain surface temperature, preventing deformation or damage due to high temperatures, extending the fire resistance time of the curtain surface, and enhancing the fire-resistant separation function of the fire-resistant roller shutter. The oscillating component in the spraying assembly controls the reciprocating oscillation of the water spray pipe, thereby expanding the water spraying range. The fireproof roller shutter is designed to ensure that water is more evenly distributed across the curtain surface and the fire area, improving fire extinguishing and cooling effects and enhancing its fire control capabilities. The drive assembly features both electric and manual drive modes. In the event of a fire, a second motor can electrically raise and lower the roller shutter. If a fire causes a short circuit in the motor, the shutter can be manually lowered by rotating a turntable using a synchronous belt and gear transmission, ensuring that the curtain can be lowered promptly under any circumstances to prevent the spread of fire and improving the reliability and stability of the fireproof roller shutter. Attached Figure Description
[0023] Figure 1 An overall schematic diagram according to an embodiment of the present utility model is shown;
[0024] Figure 2 The present invention provides an embodiment of the present invention. Figure 1 Another perspective view;
[0025] Figure 3 A schematic diagram of a spraying assembly provided according to an embodiment of the present invention is shown;
[0026] Figure 4 A schematic diagram of the swing component according to an embodiment of the present invention is shown;
[0027] Figure 5 A diagram showing the positional relationship between the worm gear and the worm according to an embodiment of the present invention is provided.
[0028] Figure 6 A schematic diagram of a drive component provided according to an embodiment of the present invention is shown;
[0029] Figure 7 A cross-sectional view of the mounting box provided according to an embodiment of the present invention is shown.
[0030] Legend:
[0031] 10. Frame; 11. Roller shutter door body;
[0032] 20. Spraying assembly; 21. Mounting box; 22. Connecting box; 23. Water inlet tank; 24. Connecting pipe; 25. Spray pipe; 26. Swinging component; 261. Fixing frame; 262. Ring; 263. Rotating rod; 264. Connecting piece; 265. Worm gear; 266. First motor; 267. Worm;
[0033] 30. Drive assembly; 31. Mounting rod; 32. Second motor; 33. First timing belt; 34. Turntable; 35. Second timing belt. Detailed Implementation
[0034] 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.
[0035] like Figures 1-7 As shown, the present invention provides a composite double-track fireproof roller shutter, including a frame 10 and a roller shutter body 11. The frame 10 is equipped with a spraying component 20 that can automatically spray water for fire extinguishing, and the frame 10 is also equipped with a driving component 30 that can drive the roller shutter body 11 to rise and fall.
[0036] The spraying assembly 20 includes a mounting box 21 fixedly installed on one side of the frame 10. A connecting box 22 is fixedly connected to one side of the mounting box 21. Water inlet tanks 23 are equidistantly arranged inside the frame 10. A connecting pipe 24 is installed between several water inlet tanks 23 and the connecting box 22. A rotary joint is provided at the connection between the connecting pipe 24 and the water inlet tank 23. A connector is provided at one end of the connecting pipe 24 located in the connecting box 22. A spray pipe 25 is connected and installed on one side of the water inlet tank 23. The frame 10 is also equipped with a swinging component 26 that can control the reciprocating swing of the spray pipe 25 to increase the spraying range.
[0037] In more detail, a through groove is provided on one side of the frame 10, and a water spray pipe 25 is located between the through grooves. Several nozzles are connected and installed on the water spray pipe 25. Both nozzles are inclined, and water can be sprayed onto the curtain surface of the roller shutter door body 11 and the fire zone through the inclined nozzles.
[0038] In the event of a fire, by opening the door on one side of the connection box 22, the external water pipe is connected to the connector inside the connecting pipe 24. Water is then transported to the inside of the connecting pipe 24 through the external water pipe. The water is then transported to several spray pipes 25 through the connecting pipe 24 and discharged from the nozzles. The water sprayed from one of the nozzles will come into contact with the curtain surface of the fire-exposed side of the roller shutter body 11. After the water is sprayed onto the curtain surface, it will evaporate and absorb heat quickly, which can effectively reduce the temperature of the curtain surface, prevent the curtain surface from deforming or being damaged due to high temperature, extend the fire resistance time of the curtain surface, and enhance the fire-resistant separation function of the fireproof roller shutter. At the same time, the water forms a uniform water film on the surface of the curtain surface. This water film can play a heat insulation role, further preventing heat from being transferred to the unexposed side, reducing the temperature of the unexposed side, thereby improving the heat insulation performance of the fireproof roller shutter.
[0039] The other method involves spraying water towards the fire zone. After the water is sprayed into the fire zone, the water droplets disperse and evaporate in the flames, absorbing a large amount of heat and achieving the effect of cooling the flames, reducing the flame temperature below its critical extinction temperature, thereby effectively controlling the spread of the fire. At the same time, the water vapor produced by the evaporation of water can dilute the oxygen concentration, reducing the oxygen content around the flames. The large amount of water vapor generated can also block the oxygen supply, thereby playing a gas-phase inerting role and inhibiting the combustion reaction.
[0040] like Figures 6-7 As shown, the drive assembly 30 includes several mounting rods 31 rotatably mounted on the frame 10. A second motor 32 is fixedly connected to one side of the frame 10. The mounting rods 31 and the second motor 32 are meshed with a first synchronous belt 33 through a first gear. When one of the mounting rods 31 rotates, the two mounting rods 31 rotate synchronously through the meshing of the first gear and the first synchronous belt 33. A turntable 34 is rotatably connected inside the mounting box 21. The turntable 34 is meshed with one of the mounting rods 31 through a second synchronous belt 35 through a second gear. When the mounting rod 31 rotates, the turntable 34 also rotates synchronously with the mounting rod 31 through the meshing of the second gear and the second synchronous belt 35.
[0041] Another mounting rod 31 is fixedly connected to the output end of the second motor 32. The roller shutter body 11 is wound around the mounting rod 31. In the event of a fire, the second motor 32 can drive the mounting rod 31 connected to it to rotate. Through the meshing transmission of the first gear and the first synchronous belt 33, the two mounting rods 31 rotate synchronously, thereby synchronously lowering the curtains of the two roller shutter bodies 11, thus blocking the spread of the fire.
[0042] If the second motor 32 is short-circuited due to a fire, the door on the mounting box 21 can be opened, and the turntable 34 can be manually rotated. Through the meshing transmission of the second gear and the second synchronous belt 35, the mounting rod 31 connected to it can be rotated. At the same time, through the meshing transmission of the first gear and the first synchronous belt 33, the two mounting rods 31 can be rotated synchronously, thereby synchronously lowering the curtains of the two roller shutter doors 11. By setting electric and manual modes, the stable operation of the roller shutter door body 11 can be ensured.
[0043] In more detail, the roller shutter door body 11 is provided with inorganic fire-resistant cloth. The inorganic fire-resistant cloth is the fire-resistant surface material on the roller shutter door body 11. It has excellent fire resistance performance, can remain stable at high temperatures, and prevent the spread of fire. All materials are Class A non-combustible materials, and the fire resistance limit can usually reach more than 3 hours.
[0044] The heat insulation layer in the middle of the roller shutter door body 11 is an aluminum silicate fireproof blanket. This material has good heat insulation performance, which can effectively block heat transfer, reduce the temperature of the unexposed surface, and prevent heat transfer to the protected area.
[0045] The back-fire surface material of the roller shutter body 11 is high-temperature resistant cloth. These materials can prevent the back-fire surface from being affected by heat radiation, further improving the heat insulation performance of the fireproof roller shutter. A smoke sensor, model SS-668, is installed on one side of the frame 10. The smoke sensor detects the fire, thereby controlling the operation of the second motor 32 and the first motor 266.
[0046] like Figures 3-5 As shown, the swing component 26 includes several fixed frames 261 fixedly mounted on the frame 10. A ring 262 and a rotating rod 263 are rotatably connected to the fixed frame 261. A connecting member 264 is provided between the ring 262 and the rotating rod 263.
[0047] In more detail, a worm gear 265 is fixedly connected to one end of the ring 262 extending to the outside of the fixed frame 261, a first motor 266 is fixedly connected to one side of the frame 10, and a worm 267 is fixedly connected to the output end of the first motor 266, so that the worm 267 can be driven to rotate by the first motor 266.
[0048] In more detail, the connector 264 is rotatably mounted on the rotating rod 263, and one end of the connector 264 is rotatably mounted on the ring 262 through a ball joint. When the ring 262 rotates, the ball joint causes one end of the connector 264 to move accordingly, thereby driving the rotating rod 263 to swing back and forth. The water inlet tank 23 is fixedly mounted on the rotating rod 263. The rotating rod 263 can drive the water inlet tank 23 to swing, which in turn drives the spray pipe 25 to swing. The worm gear 265 meshes with the worm 267. When the worm 267 rotates, the meshing causes the worm gear 265 to rotate.
[0049] While the water spray pipe 25 sprays water through the nozzle, the first motor 266 is started. The first motor 266 drives the worm gear 267 to rotate. Through meshing, the worm wheel 265 can drive the ring 262 to rotate. When the ring 262 rotates, one end of the connector 264 will also move through the ball joint. Then, the connector 264 drives the rotating rod 263 to swing back and forth. The rotating rod 263 can drive the water inlet tank 23 to swing, so that the water inlet tank 23 can drive the water spray pipe 25 to swing, thereby increasing the spraying range.
[0050] 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 composite double-track fireproof roller shutter, comprising a frame (10) and a roller shutter body (11), characterized in that, Also includes: The frame (10) is equipped with a spraying assembly (20) that can automatically spray water for fire extinguishing, and the frame (10) is also equipped with a drive assembly (30) that can drive the roller shutter door body (11) to rise and fall. The spraying assembly (20) includes a mounting box (21) fixedly installed on one side of the frame (10), a connecting box (22) fixedly connected to one side of the mounting box (21), water inlet tanks (23) are equidistantly arranged inside the frame (10), a connecting pipe (24) is installed between the water inlet tanks (23) and the connecting box (22), a spray pipe (25) is installed on one side of the water inlet tank (23), and a swinging component (26) is also mounted on the frame (10) to control the reciprocating swing of the spray pipe (25) to increase the spraying range.
2. The composite double-track fireproof roller shutter according to claim 1, characterized in that, The swing component (26) includes several fixed frames (261) fixedly installed on the frame (10). A ring (262) and a rotating rod (263) are rotatably connected on the fixed frame (261). A connector (264) is provided between the ring (262) and the rotating rod (263).
3. The composite double-track fireproof roller shutter according to claim 2, characterized in that, A worm gear (265) is fixedly connected to one end of the ring (262) extending to the outside of the fixed frame (261). A first motor (266) is fixedly connected to one side of the frame (10), and a worm (267) is fixedly connected to the output end of the first motor (266).
4. A composite double-track fireproof roller shutter according to claim 3, characterized in that, The connector (264) is rotatably mounted on the rotating rod (263), and one end of the connector (264) is rotatably mounted on the ring (262) through a ball joint. The water inlet tank (23) is fixedly mounted on the rotating rod (263), and the worm gear (265) meshes with the worm (267).
5. A composite double-track fireproof roller shutter according to claim 1, characterized in that, A through groove is provided on one side of the frame (10), and a water spray pipe (25) is located between the through grooves. Several nozzles are connected and installed on the water spray pipe (25).
6. A composite double-track fireproof roller shutter according to claim 1, characterized in that, The drive assembly (30) includes a plurality of mounting rods (31) rotatably mounted on the frame (10). A second motor (32) is fixedly connected to one side of the frame (10). A first synchronous belt (33) meshes between the mounting rods (31) and the second motor (32) through a first gear. A turntable (34) is rotatably connected inside the mounting box (21). A second synchronous belt (35) meshes between the turntable (34) and one of the mounting rods (31) through a second gear. Another mounting rod (31) is fixedly connected to the output end of the second motor (32), and the roller shutter body (11) is wound around the mounting rod (31).
7. A composite double-track fireproof roller shutter according to claim 1, characterized in that, The roller shutter door body (11) is provided with inorganic fire-resistant cloth, aluminum silicate fireproof blanket and high temperature resistant cloth, and a smoke sensor is provided on one side of the frame (10).