Roller shutter type fireproof valve with flow guide exhaust structure

Abstract

The utility model discloses a roller shutter type fireproof valve with a diversion exhaust structure, which relates to the technical field of fireproof valves and comprises a fireproof component, an exhaust component and a limit component, fireproof pipelines are arranged on two sides of the fireproof component, the exhaust component is arranged on the inner side of the fireproof component, and the limit component is arranged on the top of the inner wall of the fireproof component. The fireproof assembly comprises a first fireproof shell and a support, the first fireproof shell is arranged on the fireproof pipeline, and the support is fixedly connected to the first fireproof shell; the exhaust assembly comprises blades and a second fireproof shell, the blades are arranged on the inner side of the first fireproof shell, the exhaust efficiency of the fireproof valve is improved by arranging the exhaust assembly and driving the blades to rotate through the motor, the second fireproof shell wraps the outer side of the motor, a heat insulation plate is arranged in the second fireproof shell, the motor is prevented from being damaged due to high temperature, and the motor can continuously operate; and the stability of the fireproof valve is improved, so that the harm of fire gas to a human body is reduced, and the survival probability of trapped people is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire dampers, in particular to a rolling curtain type fire damper with a flow guiding and exhausting structure. Background Art

[0002] A fire damper is a valve used in a building fire protection system. Its function is to prevent the spread of fire, control the spread of smoke and flames, and thus protect the lives and property of people when a fire occurs. Fire dampers are usually installed in the ventilation ducts or partition walls of a building. When a fire occurs, the fire damper will automatically close to prevent the spread of fire smoke and flames inside the building. Fire dampers can effectively isolate different areas, reduce the impact of fire on the entire building, and help people evacuate and escape. In addition, fire dampers can also maintain normal ventilation and air flow inside the building, prevent smoke accumulation, and reduce the harm of smoke to the human body. In general, fire dampers play a very important role in building fire protection systems. It is one of the key equipment to ensure that buildings can effectively respond to fire situations and protect the lives and property of people.

[0003] The existing patent (Announcement No.: CN212789489U) proposes a rolling shutter fire damper with a diversion exhaust structure, including a fire duct body, a temperature-sensitive motor and an electromagnet, a temperature-sensitive motor is installed on the top of the fire duct body, the drive shaft of the temperature-sensitive motor is connected to the inner wall of the fire duct body through an embedded bearing, a connecting plate is arranged on the right side of the front end of the fire duct body, a fourth rotating rod is arranged at the rear end of the cleaning brush, connecting rods are arranged on both the left and right sides of the fourth rotating rod, a connecting block is welded at the bottom end of the fire duct body, and a plug-in plate is inserted inside the connecting block. The utility model can divert indoor smoke to the outside, reduce the damage of smoke to people, improve the survival probability of trapped people to a certain extent, reduce air pollution, protect the environment, avoid the infection of harmful substances to the user's respiratory tract, and improve the user's safety.

[0004] The above-mentioned rolling shutter fire damper with a diversion and exhaust structure mainly adopts an exhaust method in which the air naturally flows upward along the fire damper. The fire damper can block the dust in the air on one side of the filter by installing a filter inside. However, since the cleaning brush arranged inside the fire damper is located on the other side of the filter, the cleaning effect of the cleaning brush on the filter is poor, and the filter will be blocked by dust in the air, thereby causing the fire damper to be unable to effectively divert and exhaust the air, which is not conducive to improving the stability of the fire damper, reducing the damage caused to the human body by fire gases, and increasing the survival probability of trapped persons. Utility Model Content

[0005] The utility model provides a rolling curtain type fire damper with a diversion and exhaust structure, which solves the problem that the fire damper cannot effectively divert and exhaust air, is not conducive to improving the stability of the fire damper, is not conducive to reducing the damage caused by fire gases to the human body, and is not conducive to improving the survival probability of trapped people.

[0006] In order to solve the above technical problems, the utility model provides a rolling curtain type fire damper with a flow guide exhaust structure, comprising a fire prevention component, an exhaust component, and a limit component. Fire prevention pipes are arranged on both sides of the fire prevention component, the exhaust component is arranged on the inner side of the fire prevention component, and the limit component is arranged on the top of the inner wall of the fire prevention component;

[0007] The fireproof assembly comprises a fireproof shell 1 and a bracket, wherein the fireproof shell 1 is arranged on the fireproof pipe, and the bracket is fixedly connected to the fireproof shell 1;

[0008] The exhaust assembly includes blades and a second fireproof shell. The blades are arranged on the inner side of the first fireproof shell. A motor is arranged at one end of the blade. The blades are fixedly connected to the output end of the motor. The second fireproof shell is arranged on the outer side of the motor. A heat insulation board is arranged inside the second fireproof shell.

[0009] Preferably, a fixing rod is provided between the fireproof shell 1 and the fireproof shell 2, the fixing rod is fixedly connected to the fireproof shell 2, a bolt is provided on the side of the fixing rod close to the fireproof shell 1, and the fireproof shell 2 and the fireproof shell 1 are fixedly installed by the fixing rod and the bolt.

[0010] The above technical solution is adopted: by welding a fixing rod on the second fireproof shell, and fixing the fixing rod inside the first fireproof shell with bolts, it is convenient to fix the blade and the second fireproof shell inside the first fireproof shell.

[0011] Preferably, the bracket is rotatably connected to a rotating shaft, a fireproof rolling shutter is arranged on the rotating shaft, one end of the fireproof rolling shutter is fixedly connected to the rotating shaft, and the other end of the fireproof rolling shutter away from the rotating shaft is fixedly connected to a counterweight.

[0012] The above technical solution is adopted: by fixing a counterweight block at the bottom of the fireproof rolling shutter, the counterweight block drives the fireproof rolling shutter to slide downward by its own weight, so that the fire damper is closed. Since the fireproof rolling shutter is a whole, no gap will be generated in the fire damper after it is closed, thereby improving the sealing of the fire damper and reducing the probability of high-temperature gas driving sparks to pass through the fire damper.

[0013] Preferably, the limiting assembly includes a metal block 1 and a support block, the metal block 1 is arranged on the top of the inner wall of the fireproof shell 1 on the side close to the counterweight block, the support block is rotatably connected to the metal block 1, a metal block 2 is arranged on the side of the support block away from the metal block 1, a rubber block is arranged on the metal block 2, and the rubber block is movably inserted inside the rubber block and the support block.

[0014] The above technical solution is adopted: by inserting a rubber block inside the support block and the metal block 2, the rubber block limits the counterweight block through the support block and the metal block 2, and the rubber block will gradually melt after being exposed to high-temperature gas at a certain temperature. When the rubber block melts to a certain extent, the support block and the metal block 2 are separated, and the metal block 2 rotates along the metal block 1, so that the counterweight block drives the fireproof roller shutter to slide down, so that the fire damper can be automatically closed without using electric equipment after the air temperature reaches a certain height, thereby avoiding the situation where the electric equipment is damaged due to high temperature and the fire damper cannot be used normally.

[0015] Preferably, sealing pads 2 are provided on both sides of the inner wall of the fireproof outer shell 1, the fireproof roller shutter is slidably connected to the sealing pads 2, and a sealing pad 1 matching the counterweight is provided at the bottom of the inner wall of the fireproof outer shell 1.

[0016] The above technical solution is adopted: by arranging a counterweight block at the bottom of the fireproof roller shutter, the counterweight block can drive the fireproof roller shutter to slide downward along the sealing pad 2 to close the fire damper, and arranging the sealing pad 2 and the sealing pad 1 inside the fireproof shell 1, the fireproof shell 1 and the fireproof roller shutter can be sealed, thereby reducing the probability of high-temperature gas carrying sparks through the fire damper.

[0017] Preferably, a connecting block 1 is fixedly connected to a side of the inner wall of the fireproof shell 1 close to the fireproof pipe, a connecting block 2 is fixedly connected to a side of the outer wall of the fireproof shell 1 close to the fireproof pipe, a connecting block 3 is fixedly connected to a side of the fireproof pipe close to the connecting block 2, the connecting block 2 is movably inserted between the fireproof pipe and the connecting block 3, and the fireproof pipe and the fireproof shell 1 are clamped together by the connecting block 1, the connecting block 2 and the connecting block 3.

[0018] The above technical solution is adopted: by arranging a counterweight block at the bottom of the fireproof roller shutter, the counterweight block can drive the fireproof roller shutter to slide downward along the sealing pad 2 to close the fire damper, and arranging the sealing pad 2 and the sealing pad 1 inside the fireproof shell 1, the fireproof shell 1 and the fireproof roller shutter can be sealed, thereby reducing the probability of high-temperature gas carrying sparks through the fire damper.

[0019] Compared with the related art, the utility model has the following beneficial effects:

[0020] 1. Compared with the traditional rolling shutter fire damper with a guide exhaust structure, the utility model sets an exhaust component, starts the motor, and the motor drives the blades to rotate, so that the fire damper can discharge the hot air generated at the fire scene, thereby improving the exhaust efficiency of the fire damper. Since the outer side of the motor is wrapped with a fireproof shell 2, and the interior of the fireproof shell 2 is provided with a heat insulation board, the motor can be protected, the impact of hot air on the motor can be reduced, and the motor can be prevented from being damaged by high temperature, so that the motor can continue to operate, and the stability of the fire damper is improved, thereby reducing the damage caused by fire gas to the human body, which is conducive to increasing the survival probability of trapped people.

[0021] 2. In the utility model, by setting a limit assembly, when the temperature of the hot air inside the fire damper reaches the melting point of the rubber block, the rubber block will gradually melt and separate the support block from the metal block, causing the counterweight block to lose support, so that the counterweight block drives the fire curtain to fall, and the fire damper will automatically close when the electric equipment is not in use after the temperature of the hot air reaches a certain value, thereby avoiding the situation where the electric equipment is damaged due to high temperature and the fire damper cannot be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a rolling curtain type fire damper with a diversion exhaust structure;

[0023] Figure 2 A side cross-sectional view of a fireproof housing 2 of a rolling shutter type fire damper having a flow-guiding exhaust structure;

[0024] Figure 3 A side cross-sectional view of a fireproof housing of a rolling shutter type fire damper having a flow-guiding exhaust structure;

[0025] Figure 4 The present invention is a structural schematic diagram of a limit assembly of a rolling shutter type fire damper with a diversion exhaust structure.

[0026] Numbers in the figure:

[0027] 1. Fireproof pipe; 2. Fireproof component; 21. Fireproof shell 1; 22. Bracket; 23. Rotating shaft; 24. Fireproof roller shutter; 25. Connecting block 1; 26. Connecting block 2; 27. Sealing gasket 1; 28. Counterweight block; 29. ​​Sealing gasket 2; 3. Connecting block 3; 4. Exhaust component; 41. Blade; 42. Fireproof shell 2; 43. Fixing rod; 44. Motor; 45. Heat insulation board; 5. Limiting component; 51. Metal block 1; 52. Support block; 53. Metal block 2; 54. Rubber block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] Embodiment 1

[0030] like Figure 1-Figure 2 As shown, a rolling curtain type fire damper with a diversion exhaust structure includes a fire prevention component 2, an exhaust component 4, and a limit component 5. Fire prevention pipes 1 are arranged on both sides of the fire prevention component 2, the exhaust component 4 is arranged on the inner side of the fire prevention component 2, and the limit component 5 is arranged on the top of the inner wall of the fire prevention component 2;

[0031] The fireproof assembly 2 includes a fireproof housing 21 and a bracket 22. The fireproof housing 21 is arranged on the fireproof pipe 1, and the bracket 22 is fixedly connected to the fireproof housing 21.

[0032] The exhaust assembly 4 includes a blade 41 and a fireproof shell 2 42, the blade 41 is arranged on the inner side of the fireproof shell 1 21, a motor 44 is arranged at one end of the blade 41, the blade 41 is fixedly connected to the output end of the motor 44, the fireproof shell 2 42 is arranged on the outer side of the motor 44, and a heat insulation board 45 is arranged inside the fireproof shell 2 42. By installing the blade 41 inside the fireproof shell 1 21, the ventilation efficiency of the fire damper can be improved. By starting the fireproof shell 2 42, the blade 41 can extract the smoke and high-temperature gas at the fire scene along the fireproof pipe 1 and the inside of the fireproof shell 21, thereby reducing the smoke at the fire scene and improving the productivity of personnel.

[0033] A fixing rod 43 is provided between the fireproof shell 1 21 and the fireproof shell 2 42, and the fixing rod 43 is fixedly connected to the fireproof shell 2 42. A bolt is provided on the fixing rod 43 on the side close to the fireproof shell 1 21. The fireproof shell 2 42 and the fireproof shell 1 21 are fixedly installed by the fixing rod 43 and the bolts. By welding the fixing rod 43 to the fireproof shell 2 42 and fixing the fixing rod 43 to the inside of the fireproof shell 1 21 with bolts, it is convenient to fix the blade 41 and the fireproof shell 2 42 to the inside of the fireproof shell 1 21.

[0034] A rotating shaft 23 is rotatably connected to the bracket 22, and a fireproof roller shutter 24 is arranged on the rotating shaft 23. One end of the fireproof roller shutter 24 is fixedly connected to the rotating shaft 23, and the other end of the fireproof roller shutter 24 away from the rotating shaft 23 is fixedly connected to a counterweight block 28. By fixing the counterweight block 28 at the bottom of the fireproof roller shutter 24, the counterweight block 28 drives the fireproof roller shutter 24 to slide downward by its own weight, so that the fire damper is closed. Since the fireproof roller shutter 24 is an integral part, no gap will be generated in the fire damper after it is closed, thereby improving the sealing of the fire damper and reducing the probability of sparks driven by high-temperature gas to pass through the fire damper.

[0035] Embodiment 2

[0036] like Figure 4 As shown, the limiting assembly 5 includes a metal block 51 and a support block 52. The metal block 51 is arranged on the top of the inner wall of the fireproof housing 21 near the side of the counterweight 28. The support block 52 is rotatably connected to the metal block 51. A metal block 2 53 is arranged on the side of the support block 52 away from the metal block 51. A rubber block 54 is arranged on the metal block 2 53. The rubber block 54 is movably inserted in the rubber block 54 and the support block 52. By inserting the rubber block 54 in the support block 52 and the metal block 2 53, the rubber block The counterweight block 28 is limited by the support block 52 and the second metal block 53. The rubber block 54 will gradually melt after being exposed to high-temperature gas at a certain temperature. When the rubber block 54 melts to a certain extent, the support block 52 and the second metal block 53 are separated. The second metal block 53 rotates along the first metal block 51, so that the counterweight block 28 drives the fireproof roller shutter 24 to slide down, so that the fire damper can be automatically closed without using electric equipment after the air temperature reaches a certain height, avoiding the situation that the electric equipment is damaged due to high temperature and the fire damper cannot be used normally.

[0037] Sealing pads 29 are provided on both sides of the inner wall of the fireproof shell 21, and the fireproof roller shutter 24 is slidably connected with the sealing pads 29. A sealing pad 27 matching the counterweight 28 is provided at the bottom of the inner wall of the fireproof shell 21. By providing the counterweight 28 at the bottom of the fireproof roller shutter 24, the counterweight 28 can drive the fireproof roller shutter 24 to slide downward along the sealing pads 29 to close the fire damper. Sealing pads 29 and sealing pads 27 are provided inside the fireproof shell 21, so that the fireproof shell 21 and the fireproof roller shutter 24 can be sealed, thereby reducing the probability of high-temperature gas carrying sparks through the fire damper.

[0038] A connecting block 1 25 is fixedly connected to one side of the inner wall of the fireproof shell 21 near the fireproof pipe 1, a connecting block 2 26 is fixedly connected to one side of the outer wall of the fireproof shell 21 near the fireproof pipe 1, a connecting block 3 3 is fixedly connected to one side of the fireproof pipe 1 near the connecting block 26, the connecting block 2 26 is movably inserted between the fireproof pipe 1 and the connecting block 3 3, the fireproof pipe 1 and the fireproof shell 21 are clamped together by the connecting block 1 25, the connecting block 2 26 and the connecting block 3 3, a counterweight block 28 is provided at the bottom of the fireproof roller shutter 24, the counterweight block 28 can drive the fireproof roller shutter 24 to slide downward along the sealing pad 2 29 to close the fire damper, and a sealing pad 2 29 and a sealing pad 1 27 are provided inside the fireproof shell 21, so that the fireproof shell 21 and the fireproof roller shutter 24 can be sealed, thereby reducing the probability of high-temperature gas carrying sparks through the fire damper.

[0039] Working principle: Figure 1-Figure 4 As shown, first insert the connecting block 1 25 into the interior of the fireproof pipe 1, and insert the connecting block 2 26 between the fireproof pipe 1 and the connecting block 3 3, so that the fire damper can be installed on the fireproof pipe 1. When a fire occurs, start the motor 44, so that the motor 44 drives the blade 41 to rotate, and the hot air generated by the fire is sucked into the interior of the fireproof pipe 1, and then discharged through the fire damper, thereby improving the exhaust efficiency of the fire damper. Since the outer side of the motor 44 is wrapped with the fireproof shell 2 42, and the interior of the fireproof shell 2 42 is provided with a heat insulation board 45, the influence of hot air on the motor 44 can be reduced, and the motor 44 can be prevented from being damaged by the high temperature of the hot air, so that the motor 44 can keep running, and the fire damper can continue to operate, thereby improving the stability of the fire damper, thereby reducing the damage caused by the fire gas to the human body, which is beneficial to increasing the survival probability of the trapped people.

[0040] When the fire damper discharges hot air, if the fire is too big and the temperature of the hot air is high, the hot air will heat the rubber block 54 set inside the fire damper. When the temperature of the hot air reaches the melting point of the rubber block 54, the rubber block 54 will slowly melt. After it melts to a certain extent, the rubber block 54 will flow out from the inside of the metal block 2 53 and the support block 52, so that the counterweight block 28 loses its support. The counterweight block 28 will drive the fire curtain 24 to fall, so that the fire damper will automatically close when the electric equipment is not in use after the temperature of the hot air reaches a certain value, thereby avoiding the situation where the electric equipment is damaged due to high temperature and the fire damper cannot be used normally.

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

Claims

1. A rolling curtain fire damper with a flow-guiding exhaust structure, characterized in that: It comprises a fireproof component (2), an exhaust component (4), and a limiter component (5), wherein fireproof pipes (1) are arranged on both sides of the fireproof component (2), the exhaust component (4) is arranged on the inner side of the fireproof component (2), and the limiter component (5) is arranged on the top of the inner wall of the fireproof component (2); The fireproof assembly (2) comprises a fireproof outer shell (21) and a bracket (22), wherein the fireproof outer shell (21) is arranged on the fireproof pipe (1), and the bracket (22) is fixedly connected to the fireproof outer shell (21); The exhaust assembly (4) comprises a blade (41) and a second fireproof shell (42); the blade (41) is arranged on the inner side of the first fireproof shell (21); a motor (44) is arranged at one end of the blade (41); the blade (41) is fixedly connected to the output end of the motor (44); the second fireproof shell (42) is arranged on the outer side of the motor (44); and a heat insulation board (45) is arranged inside the second fireproof shell (42).

2. The rolling curtain fire damper with a flow-guiding exhaust structure according to claim 1, characterized in that: A fixing rod (43) is provided between the fireproof shell 1 (21) and the fireproof shell 2 (42), the fixing rod (43) is fixedly connected to the fireproof shell 2 (42), a bolt is provided on a side of the fixing rod (43) close to the fireproof shell 1 (21), and the fireproof shell 2 (42) and the fireproof shell 1 (21) are fixedly installed via the fixing rod (43) and the bolt.

3. The rolling curtain fire damper with a flow-guiding exhaust structure according to claim 1, characterized in that: The bracket (22) is rotatably connected to a rotating shaft (23), a fireproof rolling curtain (24) is arranged on the rotating shaft (23), one end of the fireproof rolling curtain (24) is fixedly connected to the rotating shaft (23), and the other end of the fireproof rolling curtain (24) away from the rotating shaft (23) is fixedly connected to a counterweight (28).

4. The rolling curtain fire damper with a flow-guiding exhaust structure according to claim 1, characterized in that: The limiting assembly (5) comprises a metal block (51) and a support block (52); the metal block (51) is arranged on the top of the inner wall of the fireproof housing (21) on a side close to the counterweight block (28); the support block (52) is rotatably connected to the metal block (51); a metal block (53) is arranged on the side of the support block (52) away from the metal block (51); a rubber block (54) is arranged on the metal block (53); and the rubber block (54) is movably inserted inside the rubber block (54) and the support block (52).

5. The rolling curtain fire damper with a flow-guiding exhaust structure according to claim 3, characterized in that: Sealing pads 2 (29) are provided on both sides of the inner wall of the fireproof outer shell 1 (21), the fireproof roller shutter (24) is slidably connected to the sealing pads 2 (29), and a sealing pad 1 (27) matching the counterweight block (28) is provided at the bottom of the inner wall of the fireproof outer shell 1 (21).

6. The rolling curtain fire damper with a flow-guiding exhaust structure according to claim 5, characterized in that: A connecting block 1 (25) is fixedly connected to a side of the inner wall of the fireproof shell 1 (21) close to the fireproof pipe (1); a connecting block 2 (26) is fixedly connected to a side of the outer wall of the fireproof shell 1 (21) close to the fireproof pipe (1); a connecting block 3 (3) is fixedly connected to a side of the fireproof pipe (1) close to the connecting block 2 (26); the connecting block 2 (26) is movably inserted between the fireproof pipe (1) and the connecting block 3 (3); the fireproof pipe (1) and the fireproof shell 1 (21) are connected by the connecting block 1 (25), the connecting block 2 (26) and the connecting block 3 (3).

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