Fireproof rolling shutter door capable of detecting fire and automatically closing
By introducing smoke detectors and gear systems into fire-resistant rolling shutters, the counterweight ball is automatically controlled to fall and close the shutter slats and spray a water curtain, solving the problem of response delay in traditional fire-resistant rolling shutters and achieving the effect of automatic fire detection and rapid closure.
Patent Information
- Application Number
- CN202520080207.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Traditional fire-resistant roller shutters cannot respond and close in time in the early stages of a fire, causing the fire to spread. Existing technology lacks the function of automatically detecting fire and closing quickly.
Design a fireproof roller shutter door that can automatically close upon detecting fire. The smoke sensor activates an active motor-driven gear system, which causes a counterweight ball to fall and automatically close the roller shutter. A water curtain is sprayed through a sprinkler assembly to block the fire.
It enables automatic detection and rapid closure of fireproof roller shutters when a fire occurs, preventing the spread of fire and protecting safety.
Smart Images

Figure CN223922942U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fireproof roller shutter technology, and in particular to a fireproof roller shutter that can automatically close upon detecting fire. Background Technology
[0002] In the existing building fire safety system, fire-resistant roller shutters are an important fire-resistant partition facility, widely used in various buildings to effectively prevent the spread of fire and protect the lives and property of people in the event of a fire.
[0003] In practical use, traditional fire-resistant roller shutters usually rely on manual operation or a preset alarm system to trigger the closing mechanism. This method often has a response delay when a fire occurs, especially in the early stages of a fire. When the fire has not yet fully spread but smoke has already been generated, traditional fire-resistant roller shutters may not be able to respond and close in time, thus failing to effectively prevent the spread of the fire. Improvements are urgently needed to address the problem of not being able to automatically detect the fire and quickly close the fire-resistant roller shutters.
[0004] Therefore, to address the aforementioned problem of the inconvenience in automatically detecting fire and quickly closing fireproof roller shutters, a fireproof roller shutter that can automatically close upon fire detection can be designed. During use, when the smoke sensor detects a fire and issues an alarm, the system automatically starts the active motor. The active motor drives the active gear to rotate via the active shaft, which in turn drives the meshing driven gear and driven shaft to rotate. The rotation of the driven shaft causes one end of the adjusting base plate to rotate and descend within the storage compartment via an adjusting rod, exposing the discharge port. This allows multiple sets of counterweight balls to fall from the storage compartment through the discharge port into the guide groove, and finally into the counterweight compartment through the inlet. As the number of counterweight balls in the counterweight compartment increases, their weight drives the roller shutter to slowly descend and unfold via the winding roller, achieving automatic closure of the fireproof roller shutter to block the fire. Simultaneously, the sprinkler assembly above the fixed door frame is activated, evenly spraying water to form a water curtain barrier, effectively preventing further spread of the fire. This achieves the purpose of automatically detecting fire and quickly closing the fireproof roller shutter to protect safety. Utility Model Content
[0005] To overcome the problem that traditional fire-resistant rolling shutters typically rely on manual operation or preset alarm systems to trigger the closing mechanism, which often results in a delayed response when a fire occurs, especially in the early stages of a fire when smoke has already been generated before the fire has fully spread, traditional fire-resistant rolling shutters may not be able to respond and close in time, thus failing to effectively prevent the spread of the fire. Therefore, improvements are urgently needed to address the issue of not being able to automatically detect fires and quickly close fire-resistant rolling shutters.
[0006] The technical solution of this utility model is as follows: a fireproof roller shutter door that can automatically close upon detecting fire, comprising a fixed door frame, a smoke sensor, roller shutter slats, a winding roller, a storage compartment, a mounting bracket, a drive motor, a drive shaft, a drive gear, a driven shaft, a driven gear, an adjusting rod, an adjusting base plate, a discharge port, a feed port, a counterweight compartment, a counterweight ball, an adjusting assembly, a spray assembly, an auxiliary assembly, and a guide assembly; a spray assembly is provided above the fixed door frame, a winding roller is provided inside the fixed door frame, roller shutter slats are provided on the side wall of the winding roller, an auxiliary assembly is provided at the bottom end of the roller shutter slats, two sets of guide assemblies are provided on both sides of the inner wall of the fixed door frame, and a storage compartment is provided on one side of the upper part of the fixed door frame, with the side wall of the storage compartment... The storage compartment is equipped with a mounting bracket, a drive motor on the side wall of the mounting bracket, a drive shaft at the output end of the drive motor, a drive gear at one end of the drive shaft, a driven shaft on the side wall of the storage compartment, a driven gear at one end of the driven shaft, the driven gear meshing with the drive gear, an adjusting rod on the side wall of the driven shaft, an adjusting base plate inside the storage compartment, a discharge port on one side of the storage compartment, a counterweight compartment on one side of the lower edge plate, a feed port on one side of the counterweight compartment, a counterweight ball inside the storage compartment (multiple sets of counterweight balls), another counterweight ball inside the counterweight compartment, a smoke sensor on one side of the fixed door frame, and an adjusting assembly on the side wall of the storage compartment.
[0007] Preferably, during the use of the fireproof rolling shutter door, firstly, when the smoke sensor detects a fire and sounds an alarm, the system automatically starts the active motor. The active motor drives the active gear to rotate through the active shaft, which in turn drives the driven gear and driven shaft to rotate. The rotation of the driven shaft causes one end of the adjusting base plate to rotate and descend within the storage compartment via the adjusting rod, thus exposing the discharge port. This allows multiple sets of counterweight balls to fall from the storage compartment through the discharge port into the guide groove, and finally into the counterweight compartment through the inlet. As the number of counterweight balls in the counterweight compartment increases, their weight drives the rolling shutter slats to slowly descend and unfold through the winding roller, achieving automatic closing of the fireproof rolling shutter door to block the fire. At the same time, the sprinkler assembly above the fixed door frame is activated, evenly spraying water to form a water curtain barrier, effectively preventing the fire from spreading further. Thus, the system achieves the purpose of automatically detecting the fire and quickly closing the fireproof rolling shutter door to protect safety.
[0008] Preferably, the spray assembly includes a mounting housing, a water storage tank, a water pump, and a water pumping pipe; the mounting housing is provided above the fixed door frame, the water storage tank is provided inside the mounting housing, the water pump is provided on the side wall of the water storage tank, and the water pumping pipe is provided on one side of the water pump.
[0009] Preferably, the spray assembly also includes a spray pipe and spray heads; one end of the water pump is provided with a spray pipe, and the bottom wall of the spray pipe is provided with a spray head, and multiple sets of spray heads are provided.
[0010] Preferably, the adjustment assembly includes an adjustment groove; the adjustment groove is provided on the side wall of the storage compartment, one side of the adjustment base plate is rotatably connected to the inner wall of the storage compartment, and the other side of the adjustment base plate is fixedly connected to one end of the adjustment rod.
[0011] Preferably, the auxiliary components include a lower edge plate and a handle; the bottom end of the roller shutter is provided with a lower edge plate, and the other side of the lower edge plate is provided with a handle, and both sides of the winding roller are rotatably connected to the inner wall of the fixed door frame.
[0012] Preferably, the guide assembly includes a guide groove and a guide rod; guide grooves are provided on both sides of the inner wall of the fixed door frame, and two sets of guide grooves are provided, with guide rods installed inside the guide grooves.
[0013] Preferably, the guide assembly also includes guide blocks; guide blocks are provided on the side wall of the guide rod, the guide blocks are slidably connected to the guide rod, and both sides of the lower edge plate are fixedly connected to the inner walls of the two sets of guide blocks.
[0014] The beneficial effects of this utility model are:
[0015] When the fireproof rolling shutter door is in use, firstly, when the smoke sensor detects a fire and sounds an alarm, the system automatically starts the active motor. The active motor drives the active gear to rotate through the active shaft, which in turn drives the driven gear and driven shaft to rotate. The rotation of the driven shaft causes one end of the adjusting base plate to rotate and descend in the storage compartment via the adjusting rod, thus exposing the discharge port. This allows multiple sets of counterweight balls to fall from the storage compartment through the discharge port into the guide groove, and finally into the counterweight compartment through the inlet. As the number of counterweight balls in the counterweight compartment increases, their weight drives the rolling shutter slats to slowly descend and unfold through the winding roller, realizing the automatic closing of the fireproof rolling shutter door to block the fire. At the same time, the sprinkler assembly above the fixed door frame is activated, spraying water evenly to form a water curtain barrier, effectively preventing the fire from spreading further. Thus, the system achieves the purpose of automatically detecting the fire and quickly closing the fireproof rolling shutter door to protect safety. Attached Figure Description
[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of a fireproof roller shutter door that can detect fire and automatically close.
[0017] Figure 2 The diagram shown is a partial three-dimensional structural schematic of a fireproof roller shutter door that can detect fire and automatically close.
[0018] Figure 3 The diagram shown is a partial three-dimensional structural schematic of a fireproof roller shutter door that can detect fire and automatically close.
[0019] Figure 4The diagram shown is a partial three-dimensional structural schematic of a fireproof roller shutter door that can detect fire and automatically close.
[0020] Figure 5 The diagram shown is a partial three-dimensional structural schematic of a fireproof rolling shutter door that can detect fire and automatically close.
[0021] Figure 6 The diagram shown is a partial three-dimensional structural schematic of a fireproof roller shutter door that can detect fire and automatically close.
[0022] Explanation of reference numerals in the attached drawings: 1. Fixed door frame; 2. Smoke sensor; 3. Roller shutter slats; 4. Rewind roller; 5. Storage compartment; 6. Mounting bracket; 7. Drive motor; 8. Drive shaft; 9. Drive gear; 10. Driven shaft; 11. Driven gear; 12. Adjusting rod; 13. Adjusting base plate; 14. Discharge port; 15. Inlet; 16. Counterweight compartment; 17. Counterweight ball; 101. Mounting housing; 102. Water tank; 103. Water pump; 104. Water pipe; 105. Spray pipe; 106. Spray head; 201. Adjusting arc groove; 301. Lower edge plate; 302. Handle; 401. Guide groove; 402. Guide rod; 403. Guide block. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Please see Figures 1-6This utility model provides an embodiment of a fireproof roller shutter door that can automatically close upon detecting a fire, comprising a fixed door frame 1, a smoke sensor 2, a roller shutter 3, a winding roller 4, a storage compartment 5, a mounting bracket 6, a drive motor 7, a drive shaft 8, a drive gear 9, a driven shaft 10, a driven gear 11, an adjusting rod 12, an adjusting base plate 13, a discharge port 14, a feed port 15, a counterweight compartment 16, a counterweight ball 17, an adjusting assembly, a spray assembly, an auxiliary assembly, and a guide assembly; a spray assembly is provided above the fixed door frame 1, a winding roller 4 is provided inside the fixed door frame 1, a roller shutter 3 is provided on the side wall of the winding roller 4, an auxiliary assembly is provided at the bottom end of the roller shutter 3, two sets of guide assemblies are provided on both sides of the inner wall of the fixed door frame 1, a storage compartment 5 is provided on the upper side of the fixed door frame 1, and a mounting bracket 6 is provided on the side wall of the storage compartment 5. A bracket 6 is mounted on the side wall of the mounting bracket 6. An active motor 7 is mounted on the output end of the active motor 7. An active shaft 8 is mounted on one end of the active shaft 8. An active gear 9 is mounted on one end of the active shaft 8. A driven shaft 10 is mounted on the side wall of the storage compartment 5. A driven gear 11 is mounted on one end of the driven shaft 10. The driven gear 11 meshes with the active gear 9. An adjusting rod 12 is mounted on the side wall of the driven shaft 10. An adjusting base plate 13 is mounted inside the storage compartment 5. A discharge port 14 is opened on one side of the storage compartment 5. A counterweight compartment 16 is mounted on one side of the lower edge plate 301. A feed port 15 is opened on one side of the counterweight compartment 16. A counterweight ball 17 is mounted inside the storage compartment 5. Multiple sets of counterweight balls 17 are provided. Another counterweight ball 17 is located inside the counterweight compartment 16. A smoke sensor 2 is mounted on one side of the fixed door frame 1. An adjusting component is opened on the side wall of the storage compartment 5.
[0025] Please see Figure 2The sprinkler assembly includes a mounting housing 101, a water storage tank 102, a water pump 103, and a water pumping pipe 104. The mounting housing 101 is located above the fixed door frame 1. The water storage tank 102 is located inside the mounting housing 101. The water pump 103 is mounted on the side wall of the water storage tank 102, and the water pumping pipe 104 is located on one side of the water pump 103. The water pump 103 is activated to draw water from the water storage tank 102 and transports the water through the water pumping pipe 104. The sprinkler assembly also includes a sprinkler pipe 105 and sprinkler heads 106. A sprinkler pipe 105 is mounted at one end of the water pumping pipe 104, and sprinkler heads 106 are mounted on the bottom wall of the sprinkler pipe 105. Multiple sets of sprinkler heads 106 are provided. A smoke sensor 2 detects a fire and emits a warning signal. Upon alarm, the system will automatically start the water pump 103. The water pump 103 draws water from the water storage tank 102 and delivers the water to the spray pipe 105 through the water pumping pipe 104. Then, multiple sets of spray heads 106 set at the bottom of the spray pipe 105 spray the water evenly, forming a water curtain barrier to effectively block the further spread of the fire, thereby achieving the purpose of automatic fire protection. The adjustment component includes an adjustment arc groove 201. An adjustment arc groove 201 is opened on the side wall of the storage compartment 5. One side of the adjustment base plate 13 is rotatably connected to the inner wall of the storage compartment 5, and the other side of the adjustment base plate 13 is fixedly connected to one end of the adjustment rod 12. The rotation of the driven shaft 10 causes one end of the adjustment base plate 13 to rotate and descend inside the storage compartment 5 through the adjustment rod 12.
[0026] Please see Figures 3-6 The auxiliary components include a lower edge plate 301 and a handle 302; the bottom end of the roller shutter 3 is provided with a lower edge plate 301, and the other side of the lower edge plate 301 is provided with a handle 302; both sides of the winding roller 4 are rotatably connected to the inner wall of the fixed door frame 1; when the roller shutter door needs to be manually closed, the user pulls down the handle 302 provided on one side of the lower edge plate 301 of the roller shutter door to make the roller shutter 3 unfold and descend from the winding roller 4 provided inside the fixed door frame 1; the guide components include a guide groove 401 and a guide rod 402; both sides of the inner wall of the fixed door frame 1 are provided with guide grooves 401, and the guide grooves 401 are opened... Two sets of guide rods 402 are provided inside the guide groove 401. The guide groove 401 and the guide rod 402 can play a sliding guiding role. The guide assembly also includes a guide block 403. The guide block 403 is provided on the side wall of the guide rod 402. The guide block 403 is slidably connected to the guide rod 402. Both sides of the lower edge plate 301 are fixedly connected to the inner wall of the two sets of guide blocks 403. At the same time, the lower edge plate 301 drives the guide block 403, which is fixedly connected to it and slides in the guide groove 401 on the inner wall of the fixed door frame 1 through the guide rod 402, to descend synchronously, ensuring that the roller shutter door opens smoothly.
[0027] When the fireproof rolling shutter door is in use, firstly, when the smoke sensor 2 detects a fire and sounds an alarm, the system will automatically start the active motor 7. The active motor 7 drives the active gear 9 to rotate through the active shaft 8, which in turn drives the driven gear 11 and the driven shaft 10 to rotate. The rotation of the driven shaft 10 causes one end of the adjusting base plate 13 to rotate and descend in the storage compartment 5 through the adjusting rod 12, thus exposing the discharge port 14. This allows multiple sets of counterweight balls 17 to fall from the storage compartment 5 through the discharge port 14 into the guide groove 401, and finally enter the counterweight compartment 16 through the inlet 15.
[0028] As the number of counterweight balls 17 in the counterweight chamber 16 increases, their weight drives the roller shutter 3 to slowly descend and unfold through the winding roller 4, thereby achieving automatic closing of the fireproof roller shutter door to block the fire.
[0029] At the same time, the system will automatically start the water pump 103, which will draw water from the water storage tank 102 and transport the water to the spray pipe 105 through the water pumping pipe 104. Then, the multiple sets of spray heads 106 set at the bottom of the spray pipe 105 will spray the water evenly to form a water curtain barrier, effectively blocking the further spread of the fire, thereby achieving the purpose of automatic fire protection.
[0030] Through the above steps, when the fireproof rolling shutter door is in use, firstly, when the smoke sensor 2 detects a fire and sounds an alarm, the system will automatically start the active motor 7. The active motor 7 drives the active gear 9 to rotate through the active shaft 8, which in turn drives the driven gear 11 and driven shaft 10 to rotate. The rotation of the driven shaft 10 causes one end of the adjusting base plate 13 to rotate and descend in the storage compartment 5 through the adjusting rod 12, thus exposing the discharge port 14. This allows multiple sets of counterweight balls 17 to fall from the storage compartment 5 through the discharge port 14 into the guide groove 401, and finally enter the counterweight compartment 16 through the inlet 15. As the number of counterweight balls 17 in the counterweight compartment 16 increases, their weight drives the rolling shutter 3 to slowly descend and unfold through the winding roller 4, realizing the automatic closing of the fireproof rolling shutter door to block the fire. At the same time, the sprinkler assembly above the fixed door frame 1 is activated, and water is sprayed evenly to form a water curtain barrier, effectively preventing the fire from spreading further. Thus, the purpose of automatically detecting the fire and quickly closing the fireproof rolling shutter door is achieved to protect safety.
[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A fire-detecting and automatically closing fire shutter door comprising a fixed door frame (1), characterized in that: It also includes smoke sensor (2), roller blind piece (3), winding roller (4), storage bin (5), mounting bracket (6), driving motor (7), driving shaft (8), driving gear (9), driven shaft (10), driven gear (11), adjusting rod (12), adjusting bottom plate (13), discharge port (14), inlet (15), counterweight bin (16), counterweight ball (17), adjusting assembly, spraying assembly, auxiliary assembly and guide assembly; The upper part of the fixed door frame (1) is provided with a spraying assembly, the inside of the fixed door frame (1) is provided with a winding roller (4), the sidewall of the winding roller (4) is provided with a roller blind piece (3), the bottom end of the roller blind piece (3) is provided with an auxiliary assembly, the inside wall of the fixed door frame (1) is provided with two groups of guide assemblies, the upper part of the fixed door frame (1) is provided with a storage bin (5), the sidewall of the storage bin (5) is provided with a mounting bracket (6), the sidewall of the mounting bracket (6) is provided with a driving motor (7), the output end of the driving motor (7) is provided with a driving shaft (8), one end of the driving shaft (8) is provided with a driving gear (9), the sidewall of the storage bin (5) is provided with a driven shaft (10), one end of the driven shaft (10) is provided with a driven gear (11), the driven gear (11) is engaged with the driving gear (9), the sidewall of the driven shaft (10) is provided with an adjusting rod (12), the inside of the storage bin (5) is provided with an adjusting bottom plate (13), one side of the storage bin (5) is provided with a discharge port (14), one side of the lower edge plate (301) is provided with a counterweight bin (16), one side of the counterweight bin (16) is provided with an inlet (15), the inside of the storage bin (5) is provided with a counterweight ball (17), the counterweight ball (17) is provided with multiple groups, another counterweight ball (17) is arranged in the inside of the counterweight bin (16), one side of the fixed door frame (1) is provided with a smoke sensor (2), the sidewall of the storage bin (5) is provided with an adjusting assembly.
2. The fire-detectable automatic closing fire shutter door according to claim 1, wherein: The spraying assembly comprises a mounting shell (101), a water storage tank (102), a water pump (103) and a water suction pipe (104); The upper part of the fixed door frame (1) is provided with a mounting shell (101), the inside of the mounting shell (101) is provided with a water storage tank (102), the sidewall of the water storage tank (102) is provided with a water pump (103), one side of the water pump (103) is provided with a water suction pipe (104).
3. The fire-detectable automatic closing fire shutter door according to claim 2, wherein: The spraying assembly further comprises a spraying pipe (105) and a spray head (106); One end of the water suction pipe (104) is provided with a spraying pipe (105), the bottom wall of the spraying pipe (105) is provided with a spray head (106), and the spray head (106) is provided with multiple groups.
4. The fire-detectable automatic closing fire shutter door according to claim 2, wherein: The adjusting assembly comprises an adjusting arc groove (201); The sidewall of the storage bin (5) is provided with an adjusting arc groove (201), one side of the adjusting bottom plate (13) is rotatably connected with the inner wall of the storage bin (5), and the other side of the adjusting bottom plate (13) is fixedly connected with one end of the adjusting rod (12).
5. The fire-detectable automatic closing fire shutter door according to claim 2, wherein: The auxiliary assembly comprises a lower edge plate (301) and a handle (302); the bottom end of the roller shutter sheet (3) is provided with the lower edge plate (301), the other side of the lower edge plate (301) is provided with the handle (302), and the two sides of the winding roller (4) are rotationally connected with the inner wall of the fixed door frame (1).
6. The fire-detectable automatic closing fire shutter door according to claim 2, wherein: The guide assembly comprises a guide groove (401) and a guide rod (402); the inner wall of the fixed door frame (1) is provided with the guide groove (401) on the two sides, the guide groove (401) is provided with two groups, and the guide rod (402) is arranged in the guide groove (401).
7. The fire-detectable automatic closing fire shutter door according to claim 6, wherein: The guide assembly further comprises a guide block (403); the sidewall of the guide rod (402) is provided with the guide block (403), the guide block (403) is in sliding connection with the guide rod (402), and the two sides of the lower edge plate (301) are fixedly connected with the inner walls of the two groups of guide blocks (403).