Double-track inorganic heat-insulation fireproof roller shutter

Abstract

The utility model discloses a double-track inorganic heat-insulation fireproof roller shutter which comprises a door rolling machine assembly, an inorganic shutter face assembly and a movable supporting frame assembly. The door rolling machine assembly is in driving connection with the inorganic curtain surface assembly; the door rolling machine assembly is arranged on the furnace inner side of the hole; the inorganic curtain surface assembly is movably arranged in the hole; the inorganic curtain surface assembly comprises inorganic curtain surfaces arranged at intervals; the movable supporting frame assembly comprises a plurality of movable units connected with one another. The movable unit is accommodated between the inorganic curtain surfaces on the two sides; the movable unit close to the lower part of the beam is connected with the hole through a hanging bar; and the movable unit at the bottom is connected with a corner brace connected with the base through a self-tapping screw. The roller shutter can be installed in an existing hole with the size required by the national standard according to the required position, it can be guaranteed that the two shutter faces are not attached when a fire disaster occurs after installation, it is effectively guaranteed that the surface temperature rise of the inorganic shutter faces does not exceed the temperature rise specified by the national standard, and the heat insulation function of the fireproof roller shutter is guaranteed.

Description

Technical Field

[0001] This application relates to the field of fireproof roller shutter technology, and in particular to a double-track inorganic heat-insulating fireproof roller shutter. Background Technology

[0002] Fire-resistant roller shutters, as movable fireproof and heat-insulating devices for fire compartments in industrial and civil buildings, have been widely used in engineering projects. In particular, double-track inorganic heat-insulating fire-resistant roller shutters are used extensively in engineering projects due to their long fire resistance time, good heat insulation properties, and high cost performance.

[0003] With the release of the GB14102.1-2024 standard "Fireproof Roller Shutter", it is stipulated that the width of the installation opening for fireproof roller shutters should not exceed 9 meters and the height of the opening should not exceed 6 meters. This requires that the size of the roller shutter motor must meet the above opening dimensions and that the roller shutter motor be installed inside the furnace. Moreover, after installation, it is necessary to obtain a test report before it can be sold on the market.

[0004] Before the release of the GB14102.1-2024 standard for fireproof roller shutters, existing fireproof roller shutters only required one installation to effectively cover an opening 3 meters wide and 3 meters high. Testing of fireproof roller shutters with openings 3 meters wide and 3 meters high where the roller shutter motor is outside the furnace opening is already a very mature process with minimal risk.

[0005] However, the existing double-layer inorganic heat-insulating fireproof roller shutter cannot be used for installations where the opening width is greater than 3 meters and the height is greater than 3 meters, and the roller shutter motor is required to be placed inside the furnace. This results in the existing double-layer inorganic heat-insulating fireproof roller shutter failing the tests required by current national standards. The specific problems are as follows:

[0006] 1. Due to the pressure difference between the inside and outside of the furnace, the inorganic curtain surface of the double-track inorganic heat-insulating fireproof roller shutter may stick together during the test, causing the temperature on the back of the fireproof roller shutter to rise too quickly, resulting in the temperature rise test result exceeding the standard and the double-track inorganic heat-insulating fireproof roller shutter failing the test.

[0007] 2. Due to the large span of the fireproof roller shutter, the pressure difference between the inside and outside of the furnace during testing will cause the inorganic fireproof curtain surface to deflect and deform. This will shorten the depth of the inorganic curtain surface embedded in the smoke-proof guide rail, resulting in the inorganic curtain surface not being embedded in the smoke-proof guide rail to meet the design requirements. This will cause the smoke-proof guide rail to have the risk of smoke leakage and fire spread at the contact point between the inorganic curtain surface and the smoke-proof guide rail.

[0008] 3. When the roller shutter is placed in the furnace, the existing braking system will be damaged by the high temperature during the test, resulting in the curtain sagging and piling up. Gaps will be generated between the inorganic curtain and the smoke-proof guide rail. During the test, smoke leakage and fire will occur, and the temperature rise of the curtain's unexposed side will exceed the standard, leading to the failure of the double-track inorganic heat-insulating fireproof roller shutter test.

[0009] 4. In order to cover the existing opening, the inorganic curtain is higher than the previous curtain to be tested. The curtain bears more weight and wind pressure, which may cause the inorganic curtain to fall during the test, resulting in the failure of the double-track inorganic heat insulation fireproof roller shutter test.

[0010] 5. The temperature at the fireproof sealing temperature measurement point is prone to exceed the standard (when the smoke-proof guide rail is under the beam and the rolling door motor is installed inside the furnace).

[0011] The information disclosed in the background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Utility Model Content

[0012] This application provides a double-track inorganic heat-insulating fireproof roller shutter to address the above-mentioned technical problems. The double-track inorganic heat-insulating fireproof roller shutter meets the current national standards for opening and installation methods.

[0013] This application provides a double-track inorganic heat-insulating fireproof roller shutter, including: a roller shutter motor assembly, an inorganic curtain assembly, and a movable support frame assembly; the roller shutter motor assembly and the inorganic curtain assembly are driven to be connected; the roller shutter motor assembly is disposed on the furnace side of the opening; the inorganic curtain assembly is movably disposed inside the opening;

[0014] The inorganic curtain assembly includes: inorganic curtains spaced apart;

[0015] The movable support frame assembly includes: multiple interconnected movable units; movable units are housed between the inorganic curtains on both sides; the movable units near the beam are connected to the opening via suspension rods; the movable units at the bottom are connected to the base via angle brackets with self-tapping screws;

[0016] A forming clamp is provided on the inorganic curtain surface along the width direction; the forming clamp is spaced apart along the height direction of the inorganic curtain surface; and multiple windproof hooks are provided on both ends of the forming clamp.

[0017] Preferably, multiple active units are spaced apart along the width direction of the inorganic curtain surface;

[0018] Multiple movable units are hinged along the height direction of the inorganic curtain surface;

[0019] The active unit includes: multiple main frames and multiple telescopic frames; the main frames are set at the upper and lower ends of the telescopic frames, and adjacent telescopic frames are connected through the main frames.

[0020] Preferably, the telescopic frame includes: a long shaft, a first bracket, a second bracket, a short pin, and a washer; one end of the first bracket and one end of the second bracket are hinged together by the short pin.

[0021] The first and second supports are symmetrically arranged and are respectively positioned close to the inorganic curtain surfaces on both sides.

[0022] The two ends of the long shaft are connected to the hinge points of the first and second supports on both sides, respectively.

[0023] Preferably, the main frame is a rectangular frame; the two ends of the main frame in the width direction are respectively close to the inorganic curtain surfaces on both sides.

[0024] Preferably, the first support includes: a pair of first support side rods and a first fixing rod that are symmetrical and close to the inorganic curtain surfaces on both sides; the two ends of the first fixing rod are fixedly connected to the midpoints of the opposite surfaces of the two first support side rods;

[0025] Preferably, the inner width of the first support side rod is 2-4 mm larger than the outer width of the main frame.

[0026] Preferably, the second support includes: a pair of symmetrical second support side rods and a second fixing rod respectively close to the inner side of the two inorganic curtain surfaces; the two ends of the second fixing rod are fixedly connected to the midpoints of the opposite surfaces of the two second support side rods respectively;

[0027] Preferably, the inner width of the second support side rod is 1-2 mm wider than the outer width of the first support side rod.

[0028] Preferably, the rolling door motor assembly includes: a rolling door motor, a housing, a first sealing block, a second sealing block (2), a first roller, a second roller, a first guide device, and a second guide device;

[0029] The rolling door motor is connected to the first and second roller shafts respectively.

[0030] One end of the inorganic curtain on one side is wound around the first roller via a guide device;

[0031] One end of the inorganic curtain on the other side is wound with the second roller via a second guide device;

[0032] The box body is located inside the furnace under the beam, and the first seal is located directly opposite the box body on the outside of the furnace under the beam.

[0033] The rolling door motor, the first roller, the second roller, the first guide device, the second guide device, and the second sealing device are housed within the space enclosed by the box and the beam.

[0034] Preferably, it includes: a high-temperature resistant heat insulation blanket; the high-temperature resistant heat insulation blanket is filled and disposed on the opposite inner surfaces of the main support plate and the secondary support plate of the rolling door motor;

[0035] Preferably, the high-temperature resistant insulation blanket is at least one of aluminum silicate fiber blanket, alumina fiber blanket, glass fiber blanket, and carbon fiber blanket;

[0036] Preferably, it includes: a first block; the upper end of the second block is connected to the upper inner side of the beam, and the other end extends toward the second roller; the heat insulation curtain inside the box is laid on the inner wall frame of the box; the extension end of one extension of the heat insulation curtain inside the box overlaps with the block; the other extension end of the heat insulation curtain inside the box is closely attached to the inorganic curtain surface of the roller door motor.

[0037] Preferably, the rolling door motor is housed within the space enclosed by the heat insulation curtain and the second sealing block inside the housing;

[0038] Preferably, the heat insulation curtain inside the box includes: a high-temperature heat insulation blanket and a high-temperature fireproof cloth, with the high-temperature fireproof cloth covering the outside of the high-temperature heat insulation blanket.

[0039] Preferably, it includes: a metal mesh or thin steel strip; one or two layers of high-temperature resistant metal mesh or thin steel strip are provided inside the inorganic fireproof curtain structure.

[0040] Preferably, it includes: a lintel, a smoke-proof device; a first seal is disposed under the beam outside the first roller, with the upper end of the first seal closely attached to the lower end of the beam; the lower end of the first seal is connected to the lintel; and a smoke-proof device is disposed on the lintel.

[0041] The second sealing block is installed between the second roller and the roller door motor; the upper end of the second sealing block is fixed above the inner side of the beam, and the lower end of the second sealing block overlaps with the high-temperature resistant heat insulation curtain laid inside the box; when the fireproof roller shutter is raised and lowered, the second sealing block is installed close to the outer side of the second roller.

[0042] The beneficial effects that this application can produce include:

[0043] 1) The double-track inorganic heat-insulating fireproof roller shutter provided in this application can ensure that it is installed in the required position within the opening of the existing national standard size, and after installation, it can ensure that the two curtain surfaces do not stick together when a fire occurs, effectively ensuring that the surface temperature rise of the inorganic curtain surface does not exceed the temperature rise specified by the national standard, and ensuring the heat insulation function of the fireproof roller shutter.

[0044] 2) The double-track inorganic heat-insulating fireproof roller shutter provided in this application ensures the safety of the inorganic curtain surface through the special design of the inorganic curtain surface structure, and improves the tensile strength and wind pressure resistance of the inorganic curtain surface.

[0045] 3) The double-track inorganic heat-insulating fireproof roller shutter provided in this application has been designed with specific structural and quantity requirements for the sealing above the fireproof roller shutter, preventing the temperature rise at the fireproof sealing temperature measurement point from exceeding the standard limit; ensuring that the fireproof and heat-insulating performance of the fireproof roller shutter sealing meets national standard requirements. Through special design of each component of the fireproof roller shutter, the product is ensured to effectively perform its fireproof and heat-insulating function in engineering applications. Attached Figure Description

[0046] Figure 1Schematic diagram of a double-track inorganic heat-insulating fireproof roller shutter in at least one embodiment provided in this application; a is front view; b is side perspective view; d is top sectional view.

[0047] Figure 2 Schematic diagram of the movable support assembly in at least one embodiment provided in this application; a is a main perspective view; b is a side view;

[0048] Figure 3 A partial cross-sectional schematic diagram of a high-temperature resistant heat insulation curtain in at least one embodiment provided in this application;

[0049] Figure 4 A three-dimensional schematic diagram of the main skeleton provided in at least one embodiment of this application;

[0050] Figure 5 A partially enlarged schematic diagram of the telescopic frame in at least one embodiment provided in this application;

[0051] Figure 6 A schematic diagram of the first bracket in at least one embodiment provided in this application;

[0052] Figure 7 A schematic diagram of the second bracket in at least one embodiment provided in this application;

[0053] Figure 8 A partially enlarged side view of the base plate in at least one embodiment provided in this application;

[0054] Figure 9 A partially enlarged schematic diagram of a buried smoke-proof guide rail in at least one embodiment provided in this application. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0056] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0057] The controller used in this implementation scheme is an existing structure, and the control circuit can be implemented by those skilled in the art through simple programming. It is common knowledge in the field, and it is only used without modification. Therefore, the control method and circuit connection will not be described in detail.

[0058] Technical means not detailed in this application and not used to solve the technical problems of this application are all set according to common general knowledge in the field, and multiple common general knowledge setting methods can be implemented.

[0059] See Figures 1-9 This application provides a double-track inorganic heat-insulating fireproof roller shutter, including: a roller shutter motor assembly, an inorganic curtain assembly, and a movable support frame assembly 13; the roller shutter motor assembly and the inorganic curtain assembly are driven to be connected; the roller shutter motor assembly is disposed on the furnace side of the opening; the inorganic curtain assembly is movably disposed in the opening;

[0060] The inorganic curtain assembly includes: stacked inorganic curtains 14;

[0061] The movable support frame assembly 13 includes: multiple movable units that are hinged to each other; the movable units are housed between the inner sides of the inorganic curtain 14; the movable units near the beam are connected to the opening via suspension rods 31; the movable units at the bottom are connected to the base 21 via self-tapping screws 22 and corner brackets 32.

[0062] A clamping plate 24 is formed on the inorganic curtain 14 along the width direction of the inorganic curtain 14; the clamping plate 24 is spaced apart along the height direction of the inorganic curtain 14; multiple windproof hooks 33 are respectively provided on both ends of the clamping plate 24; the windproof hooks 33 move up and down along the guide rail with the inorganic curtain 14, and at the same time, when the fireproof roller shutter is subjected to wind pressure, it ensures that the curtain embedded in the guide rail does not detach from the smoke-proof guide rail 15.

[0063] To address the issue of bonding of double-track inorganic heat-insulating fireproof roller shutters during testing, the solution employed is to install multiple sets of interconnected movable support frame assemblies 13 between the double-layered inorganic curtain surfaces 14. Each movable support frame assembly 13 includes: multiple hinged movable units; movable units are housed within the inorganic curtain surfaces 14 and connected to the opening via suspension rods 31; multiple movable units are spaced apart along the width direction of the inorganic curtain surfaces 14; and multiple movable units are hinged along the height direction of the inorganic curtain surfaces 14.

[0064] The active unit includes: multiple main frames 19 and multiple telescopic frames 20; the main frames 19 are set at the upper and lower ends of the telescopic frames 20, and adjacent telescopic frames 20 are connected through the main frames 19. Specifically, one end of one telescopic frame 20 is hinged to the main frame 19; one end of another telescopic frame 20 is hinged to the adjacent main frame 19.

[0065] In one specific embodiment, the telescopic frame 20 includes: a long shaft 23, a first bracket 17, a second bracket 18, and a short pin 16; one end of the first bracket 17 and one end of the second bracket 18 are hinged by the short pin 16; the first bracket 17 and the second bracket 18 are symmetrically arranged close to the inorganic curtain surfaces 14 on both sides; both ends of the long shaft 23 are connected to the hinge points of the first bracket 17 and the second bracket 18 on both sides respectively. When the inorganic curtain surface 14 is raised, the connection points of each component of the telescopic frame 20 rotate and retract with the inorganic curtain surface 14, and are accommodated in the gap between the inorganic curtain surfaces 14 on both sides; when the inorganic curtain surface 14 is lowered, the connection points of each component of the telescopic frame 20 rotate and move down with the inorganic curtain surface 14, and are accommodated in the gap between the inorganic curtain surfaces 14 on both sides, playing a supporting role. When there is wind pressure on the inorganic curtain surface 14, the telescopic frame 20 can abut against the inorganic curtain surfaces 14 on both sides to ensure that the fireproof roller shutter meets the heat insulation requirements. At the same time, it does not affect the opening and closing function of the inorganic curtain 14, and the telescopic frame 20 is composed of rods, so the overall weight is relatively light and will not excessively increase the overall weight.

[0066] In one specific embodiment, the main frame 19 is a rectangular frame made of metal profile. The rectangular frame is positioned on both sides close to the inner sides of the two inorganic curtain surfaces 14. Multiple main frames 19 are spaced apart along the width direction of the inorganic curtain surfaces 14. Each main frame 19 is connected to the first support 17 and the second support 18. The main frame 19 can be made of any profile such as square tube, flat tube, or angle iron, or it can be made by bending sheet metal. The main frame 19 is rectangular, with a length of 500-2000 mm. The width needs to be set according to the curtain spacing of the two inorganic curtain surfaces 14, ensuring that the movable support frame assembly 13 moves freely with the inorganic curtain surfaces 14.

[0067] In one specific embodiment, the telescopic frame 20 is made of metal profiles, such as any one of square tubes, flat tubes, or flat iron, or it can be formed by bending sheet metal.

[0068] In one specific embodiment, the first support 17 includes: a pair of first support side rods 171 and a first fixing rod 172 that are symmetrical and close to the inner side of the two inorganic curtain surfaces 14 respectively; the two ends of the first fixing rod 172 are fixedly connected to the midpoints of the opposite surfaces of the two first support side rods 171 respectively, so as to realize the internal support of the structure of the first support 17 and improve the reliability of the force.

[0069] The second support 18 includes: a pair of second support side rods 181 and a second fixing rod 182 that are symmetrical and close to the inorganic curtain surfaces 14 on both sides respectively; the two ends of the second fixing rod 182 are fixedly connected to the midpoints of the opposite surfaces of the second support side rods 181 on both sides respectively, so as to realize the internal support of the structure of the second support 18 and improve the reliability of the force.

[0070] In one specific embodiment, the inner width of the first support side rod 171 is 2-4 mm larger than the outer width of the main frame 19. The inner width of the second support side rod 181 is 1-2 mm wider than the outer width of the first support side rod 171.

[0071] In one specific embodiment, one end of the first support side rod 171 and one end of the second support side rod 181 on the same side are respectively hinged to one end of the long shaft rod 23. The shim 34 is placed between the long shaft rod 23 and the first support side rod 171 and is hinged with a short pin 16 to ensure that the first support 17 and the second support 18 can rotate around the long shaft rod 23.

[0072] In one specific embodiment, a first fixing rod 172 is welded to the middle of the first support side rod 171. A second fixing rod 182 is welded to the middle of the second support side rod 181 to increase its bending resistance.

[0073] In one specific embodiment, the telescopic frame 20 includes: a pair of gaskets 34, which are sleeved on both ends of the short pin 16 and sandwiched between the short pin 16 and the first support side rod 171 or the second support side rod 181. This reduces the contact surface between adjacent components, reduces friction, and improves the lifespan of moving parts.

[0074] The solution to problem 2 is as follows: Multiple molded clamping plates 24 are spaced apart along the width of the inorganic curtain 14. Multiple windproof hooks 33 are installed at both ends of the molded clamping plates 24 along the height direction. The windproof hooks 33 can be single-sided or double-sided and are securely connected with bolts and nuts. The windproof hooks 33 at both ends of the molded clamping plates 24 are inserted into the smoke-proof guide rails 15. The windproof hooks 33 do not affect the rising and falling of the fireproof roller shutter and will not cause the inorganic curtain 14 to jam during operation; at the same time, the windproof hooks 33 will not damage the surface of the inorganic curtain 14.

[0075] In one specific embodiment, the opening depth of the smoke-proof guide rail 15 must meet the embedding depth of the inorganic curtain 14 to ensure that the inorganic curtain portion embedded in the smoke-proof guide rail 15 does not derail during operation and to ensure the smoke-proof performance of its fireproof roller shutter.

[0076] In one specific embodiment, the rolling door motor assembly includes: a rolling door motor 5, a housing 6, a first roller 1, a second sealing 2, a first roller 3, a second roller 4, a first guide device 11, and a second guide device 12; the rolling door motor 5 is driven and connected to the first roller 3 and the second roller 4 respectively; one end of the inorganic curtain 14 on one side of the inorganic curtain assembly is wound around the first roller 3 via the first guide device 11; one end of the inorganic curtain 14 on the other side of the inorganic curtain assembly is wound around the second roller 4 via the second guide device 12; the rolling door motor 5 drives the first roller 3 and the second roller 4 to rotate, thereby driving the inorganic curtain assembly to rise and fall; the housing 6 is located inside the furnace under the beam, and the sealing 1 is located on the outside of the furnace under the beam, directly opposite the housing 6; the rolling door motor 5, the first roller 3, the second roller 4, the first guide device 11, and the second guide device 12 are accommodated and arranged within the space enclosed by the housing 6 and the beam.

[0077] In one specific embodiment, the main support plate 25 and the secondary support plate 26 are installed on opposite sidewalls of the opening;

[0078] Solution to Question 3:

[0079] a. High-temperature resistant heat insulation blankets 27 are respectively installed on the inner sides of the main support plate 25 and the auxiliary support plate 26 of the rolling door motor 5. The thickness is set according to the fire resistance time of the fireproof rolling shutter. The longer the fire resistance time, the thicker the high-temperature resistant heat insulation blanket 27 needs to be.

[0080] In one specific embodiment, the high-temperature resistant insulation blanket 27 is at least one of aluminum silicate fiber blanket, alumina fiber blanket, glass fiber blanket, and carbon fiber blanket.

[0081] b. Install internal heat insulation curtains 10 on the three side walls inside the box 6.

[0082] In one specific embodiment, the heat insulation curtain 10 inside the box includes: a high-temperature heat insulation blanket 27 and a high-temperature fireproof cloth 28, with the high-temperature fireproof cloth 28 covering the outside of the high-temperature heat insulation blanket 27.

[0083] In one specific embodiment, the high-temperature resistant insulation blanket 27 used is at least one of aluminum silicate fiber blanket, alumina fiber blanket, glass fiber blanket, and carbon fiber blanket.

[0084] In one specific embodiment, the high-temperature fireproof cloth 28 is at least one of glass fiber cloth, ceramic fiber cloth, high silica cloth, and carbon fiber cloth;

[0085] In one specific embodiment, the high-temperature fireproof cloth 28 is a radiation-proof cloth made of glass fiber cloth, ceramic fiber cloth, high silica cloth, carbon fiber cloth and metal foil composite.

[0086] In one specific embodiment, it includes: a second seal 2; one end of the second seal 2 is connected to the inner wall of the housing 6, and the other end extends toward the second roller 4; the second seal 2 is disposed between the second roller 4 and the rolling door motor 5; the upper end of the second seal 2 is fixed above the inner side of the beam, and the lower end of the seal 2 overlaps with the high-temperature resistant heat insulation curtain laid on the inner side of the housing 6; when the fireproof rolling door is raised and lowered, the second seal 2 is disposed close to the outer side of the second roller 4.

[0087] The extended end of the heat insulation curtain 10 inside the box overlaps with the second seal 2. After wrapping around the box 6 on three sides, the bottom of the heat insulation curtain 10 inside the box is tightly attached to the surface of the inorganic curtain 14 near the rolling door motor 5. This fully encloses the rolling door motor 5, improving the fire resistance of the area and effectively preventing the temperature in the area from rising excessively.

[0088] Solution to problem 4: Install one or two layers of high-temperature resistant metal mesh or thin steel strips inside the inorganic fireproof curtain 14 structure to improve the tensile and wind pressure resistance of the entire inorganic curtain 14.

[0089] In one specific embodiment, the high-temperature resistant steel wire mesh used is at least one of galvanized steel wire mesh and stainless steel wire mesh; the thin steel strip is at least one of galvanized steel strip and stainless steel strip.

[0090] Solution to Question 5: The risk of excessive temperature readings at the first sealing point (backside temperature measurement point) only exists for double-track inorganic fireproof roller shutters where the smoke-proof guide rail 15 is under the beam and the roller shutter motor 5 is inside the furnace. The solution is as follows:

[0091] A first sealing device 1 and a second sealing device 2 are installed. The materials and structures of the first sealing device 1 and the second sealing device 2 are the same as those of the inorganic curtain surface 14 of the fireproof roller shutter. The first sealing device 1 is installed on the outside of the first roller 3 and under the beam. The upper end of the first sealing device 1 is tightly attached to the lower part of the beam and is firmly fixed. The lower end of the first sealing device 1 is firmly fixed to the lintel 29. The lintel 29 is equipped with a smoke prevention device 30 to ensure that there is no smoke leakage or fire spread during the test.

[0092] The second sealing block 2 is set between the second roller 4 and the roller door motor 5. The upper end of the second sealing block 2 is fixed to the upper inner side of the beam, and the lower end of the second sealing block 2 overlaps with the high temperature resistant heat insulation curtain inside the box 6. When the fireproof roller shutter is raised and lowered, the second sealing block 2 is set close to the outer side of the second roller 4.

[0093] In one specific embodiment, it includes: a first temperature release device 7 and a second temperature control release device 8; the first temperature release device 7 and the second temperature control release device 8 are respectively connected to the rolling door motor 5; the first temperature release device 7 is disposed on the outer wall of the housing 6; the second temperature control release device 8 is disposed on the outer wall of the first sealing 1; thereby realizing temperature monitoring of different areas, and when the temperature change on any side is abnormal, the rolling door motor 5 can be started to lower the inorganic curtain assembly.

[0094] In one specific embodiment, it includes: a pair of corner brackets 32 and a base 21; a corner bracket 32 ​​is provided at the bottom of the movable support frame assembly 13; a base 21 is provided at the bottom of the inorganic curtain 14; the movable support frame assembly 13 is connected to the base 21 through the corner brackets 32; with this arrangement, the support frame assembly 13 and the inorganic curtain 14 are combined into one, which is conducive to achieving synchronous movement.

[0095] In one specific embodiment, one side of the corner bracket 32 ​​is connected to the bottom of the movable support frame assembly 13 by a self-tapping screw 22. The other side of the corner bracket 23 is connected to the inner side of the base plate 21 by welding.

[0096] The manufacturing process of this device is as follows:

[0097] 1. Fabrication of the movable support frame assembly

[0098] 1. Machining of the main frame 19

[0099] a. Process the steel profiles according to the required length.

[0100] b. Drill and tap holes at both ends of the steel frame 19 according to the design requirements. c. Weld the processed steel profiles into a cuboid as required.

[0101] 2. Telescopic frame 20 machining

[0102] a. Process the steel profiles according to the required length.

[0103] b. Drill holes at both ends of the steel profile according to the design requirements.

[0104] c. Assemble the first bracket 17: Weld the first bracket fixing rod 172 between the two first bracket side rods 171. The inner width of the first bracket side rod 171 is 2mm-4mm larger than the outer width of the main frame 19.

[0105] d. Assemble the second bracket 18: Weld the second bracket fixing rod 181 between the two second bracket side rods 182. The inner width of the second bracket side rod 182 is 1mm-2mm larger than the outer width of the first bracket side rod 171.

[0106] e. Connect one end of the first bracket 17 and one end of the second bracket 18 to the long shaft 23 via a short pin 16 passing through a washer 34, with the washer 34 on the outside of the long shaft 23. Ensure that the first bracket 17 and the second bracket 18 rotate around the long shaft 23.

[0107] 3. Assemble the main frame 19 and the telescopic frame 20 together.

[0108] a. The first main frame 19 at the top is connected to the first support side rod 171 and the gasket 34 via a short pin 16. The gasket 34 is located between the outer side of the main frame 19 and the inner side of the first support side rod 171. The middle main frame 19 is connected to one end of the first support side rod 171 and the second support side rod 181, as well as the gasket 34, via short pins 16. The last main frame 19 at the bottom is connected to the second support side rod 181 and the gasket 34 via short pins 16, with the gasket 34 located between the outer side of the main frame 19 and the inner side of the second support side rod 181. This ensures that the telescopic frame 20 retracts and expands accordingly as it moves up and down with the main frame 19.

[0109] b. According to the design requirements, assemble multiple main frames 19 and multiple telescopic frames 20 together using the assembly method described above. This completes the assembly of the movable support frame assembly 13 between the inorganic curtain surfaces 14 of a double-track fireproof roller shutter.

[0110] 2. Make windproof hooks 33

[0111] The windproof hook 33 is manufactured according to the design dimensions required by the drawings.

[0112] 3. Production of high-temperature resistant heat insulation blankets 27

[0113] a. Based on the size of the main support plate 25 and the auxiliary support plate 26 of the rolling door motor 5, cut the high-temperature resistant heat insulation blanket 27 into pieces for later use.

[0114] b. The thickness of the high-temperature resistant insulation blanket 27 needs to be determined according to the fire resistance time of the fireproof roller shutter.

[0115] 4. Construct the inner side of the box 6 with 10 internal heat insulation curtains.

[0116] a. Based on the length and width of the box frame 9, fabricate the heat insulation curtain 10 inside the box. Place the high-temperature fireproof blanket 27 between the high-temperature fireproof cloth 28. First, sew two lines evenly along the width direction with flame-retardant thread, and then seal the edges tightly and securely with a stapler.

[0117] b. The thickness of the heat insulation curtain 10 inside the box needs to be determined according to the fire resistance time of the fireproof roller shutter.

[0118] 5. The assembly guide rails of the double-track inorganic fireproof roller shutter are located under the beam, and the motor is installed inside the furnace.

[0119] a. Install the main support plate 25 and the secondary support plate 26 according to the design requirements. Ensure that their levelness does not exceed 8mm and that they are firmly fixed. At the same time, use fire-retardant adhesive to firmly attach the pre-cut high-temperature resistant insulation blanket 27 to the inside of the main support plate 25 and the secondary support plate 26.

[0120] b. Install the first roller 3 and the second roller 4, ensuring that the bolts fixing the inorganic curtain 14 on the first roller 3 and the second roller 4 are at the same height.

[0121] c. Hanging the curtain surface. Hang the inorganic curtain surface 14 on the first roller 3 and the second roller 4 respectively, and then fix the upper end of the inorganic curtain surface 14 on the first roller 3 and the second roller 4 respectively.

[0122] d. Install the suspension rod 31 of the movable support frame assembly 13. Pass the suspension rod 31 between the first reel 3 and the second reel 4, and fix the upper end of the suspension rod 31 under the beam. The lower end of the suspension rod 31 will be welded to the uppermost set of main frames 19 of the movable support frame assembly 13.

[0123] e. Install the first guide shaft 11 and the second guide shaft 12.

[0124] f. Install the lintel 29 and the smoke prevention device 30.

[0125] g. Install the first fireproof seal 1. The first seal 1 is located under the beam on the outside of the first roller 3. The upper end of the first seal 1 is close to the bottom of the beam and is firmly fixed. The lower end of the first seal 1 is fixed to the lintel 29.

[0126] h. Install the second fireproof seal 2. The second seal 2 is located between the second roller 4 and the roller door motor 5. The upper end is fixed to the upper inner side of the beam, and the lower end overlaps with the heat insulation curtain 10 inside the inner side of the box 6. At the same time, it is ensured that the second seal 2 is always in close contact with the outer side of the second roller 4 during the up and down movement of the inorganic curtain 14.

[0127] i. Install the enclosure frame 9.

[0128] j. Lay the internal heat insulation curtain 10. Lay the internal heat insulation curtain 10 on the frame 9 of the box body 6 inside the box body 6. The upper part of the internal heat insulation curtain 10 overlaps with the fireproof seal 22, and the lower part of the internal heat insulation curtain 10 is in close contact with the inorganic curtain surface 14 that is close to the rolling door motor 5.

[0129] k. Install the enclosure 6.

[0130] l. Mounting base plate 21.

[0131] m. Install the movable support frame assembly 13. First, raise the inorganic curtain 14 to its upper position. Then, weld the top main frame 19 of the movable support frame assembly 13 to the suspension rod 31. The bottom of the movable support frame assembly 13 is connected to the base 21 via angle brackets 32. One side of the angle bracket 34 is connected to the bottom of the movable support frame assembly 13 via self-tapping screws 22. The other side of the angle bracket 23 is welded to the inner side of the base plate 21.

[0132] n. Install smoke-proof guide rail 15. Smoke-proof guide rail 15 is a buried guide rail, embedded in the column under the beam.

[0133] o. Install temperature control release device 17 and temperature control release device 28. The temperature sensing elements of temperature control release device 17 and temperature control release device 28 are fixed in the middle of the width of the fireproof roller shutter, and the height position is fixed on the side of the box 6 or below the ceiling to ensure rapid action and timely closure of the fireproof roller shutter in the event of a fire.

[0134] p. Coordinate with fire alarm linkage testing.

[0135] q. Fire safety inspection.

[0136] VI. Application Results

[0137] To verify the fire resistance and heat insulation performance of the double-track fireproof roller shutters produced using the above system solutions, we sent a sample of a 9-meter wide and 6-meter high double-track inorganic fireproof roller shutter to a national authoritative testing institution for testing. The test results showed that all performance indicators met the requirements of GB14102.1-2024 "Fireproof Roller Shutters" standard. This also verified the effectiveness of all solutions, accumulating technical experience and achieving innovation in ensuring the fire resistance, heat insulation, safety, and reliability of fireproof roller shutters with large opening sizes.

[0138] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A double-track inorganic heat-insulating fireproof roller shutter, characterized in that, include: Roller door motor assembly, inorganic curtain assembly, movable support frame assembly (13); drive connection between roller door motor assembly and inorganic curtain assembly; The rolling door motor assembly is located inside the furnace at the opening; the inorganic curtain assembly is movably installed inside the opening. The inorganic curtain assembly includes: an inorganic curtain (14) spaced apart; The movable support frame assembly (13) includes: multiple interconnected movable units; the movable units are housed between the inorganic curtain surfaces (14) on both sides; the movable units near the beam are connected to the opening via suspension rods (31); the movable units at the bottom are connected to the base (21) via self-tapping screws (22) and corner brackets (32); A forming clamp (24) is provided on the inorganic curtain (14) along the width direction of the inorganic curtain (14); the forming clamp (24) is spaced apart along the height direction of the inorganic curtain (14); multiple windproof hooks (33) are provided on both ends of the forming clamp (24).

2. The dual track inorganic thermal barrier fire protection roll screen of claim 1, wherein, Multiple active units are spaced apart along the width direction of the inorganic curtain (14); Multiple movable units are hinged along the height direction of the inorganic curtain surface (14); The activity unit includes: multiple main frames (19) and multiple telescopic frames (20); the main frames (19) are set at the upper and lower ends of the telescopic frames (20), and adjacent telescopic frames (20) are connected through the main frames (19).

3. The double-track inorganic heat-insulating fireproof roller shutter according to claim 2, characterized in that, The telescopic frame (20) includes: a long shaft (23), a first bracket (17), a second bracket (18), a short pin (16), and a washer (34); one end of the first bracket (17) and one end of the second bracket (18) are hinged by the short pin (16); The first bracket (17) and the second bracket (18) are symmetrical and respectively located close to the inner side of the two inorganic curtain surfaces (14); The two ends of the long shaft (23) are connected to the hinge points of the first bracket (17) and the second bracket (18) on both sides, respectively.

4. The dual track inorganic thermal break fire protection shutter of claim 2, wherein, The main frame (19) is a rectangular frame; the two ends of the main frame (19) in the width direction are close to the inorganic curtain surfaces (14) on both sides.

5. The dual track inorganic thermal barrier fire protection roll screen of claim 3, wherein, The first support (17) includes: a pair of first support side rods (171) and a first fixing rod (172) that are symmetrical and close to the inorganic curtain surfaces (14) on both sides respectively; the two ends of the first fixing rod (172) are fixedly connected to the midpoints of the opposite surfaces of the first support side rods (171) on both sides respectively.

6. The dual track inorganic thermal break fire protection shutter of claim 3, wherein, The inner width of the first support side rod (171) is 2~4mm larger than the outer width of the main frame (19).

7. The dual track inorganic thermal break fire protection shutter of claim 3, wherein, The second support (18) includes: a pair of second support side rods (181) and a second fixing rod (182) that are symmetrical and close to the inorganic curtain surfaces (14) on both sides respectively; the two ends of the second fixing rod (182) are fixedly connected to the midpoints of the opposite surfaces of the second support side rods (181) on both sides respectively.

8. The dual track inorganic thermal break fire protection shutter of claim 3, wherein, The inner width of the second support side rod (181) is 1~2mm wider than the outer width of the first support side rod (171).

9. The dual track inorganic thermally and fire protective curtain of claim 1, wherein, The rolling door motor assembly includes: rolling door motor (5), housing (6), first sealing block (1), second sealing block (2), first roller (3), second roller (4), first guide device (11), and second guide device (12); The rolling door motor (5) is connected to the first roller (3) and the second roller (4) respectively; One end of the inorganic curtain (14) on one side is wound with the first roller (3) through the guide device (11); One end of the inorganic curtain (14) on the other side is wound with the second roller (4) through the second guide device (12); The box body (6) is located inside the furnace under the beam, and the first seal (1) is located on the outside of the furnace under the beam, directly opposite the box body (6). The rolling door motor (5), the first roller (3), the second roller (4), the first guide device (11), the second guide device (12), and the second sealing device (2) are housed in the space enclosed by the box (6) and the beam.

10. The dual track inorganic insulating fire protection curtain of claim 9, wherein, include: High-temperature heat-resistant blanket (27); the high-temperature heat-resistant blanket (27) is filled and installed on the opposite inner surfaces of the main support plate (25) and the secondary support plate (26) of the rolling door motor (5).

11. The double-track inorganic heat-insulating fireproof roller shutter according to claim 9, characterized in that, The high-temperature resistant insulation blanket (27) is at least one of aluminum silicate fiber blanket, alumina fiber blanket, glass fiber blanket, and carbon fiber blanket.

12. The dual track inorganic insulating fire protection curtain of claim 9, wherein, include: The first sealing (1); the upper end of the second sealing (2) is connected to the upper inner side of the beam, and the other end extends to the second roller (4); the heat insulation curtain (10) inside the box is laid on the inner wall frame of the box (6); the extension end of one extension of the heat insulation curtain (10) inside the box overlaps with the sealing (2); the other extension end of the heat insulation curtain (10) inside the box is closely attached to the surface of the inorganic curtain (14) of the roller door machine (5).

13. The dual track inorganic thermally insulating fire protection curtain of claim 9, wherein, The rolling door motor (5) is housed within the space enclosed by the heat insulation curtain (10) and the second sealing (2) inside the box.

14. The dual track inorganic thermally resistant fire resistant rollup screen of claim 9, wherein, The heat insulation curtain (10) inside the box includes: a high temperature heat insulation blanket (27) and a high temperature fireproof cloth (28), with the high temperature fireproof cloth (28) covering the outside of the high temperature heat insulation blanket (27).

15. The dual track inorganic insulating fire protection curtain of claim 1, wherein, include: Metal mesh or thin steel strip; inorganic fireproof curtain (14) The structure is equipped with one or two layers of high temperature resistant metal mesh or thin steel strip.

16. The dual track inorganic insulating fire protection curtain of claim 9, wherein, include: A lintel (29) and a smoke-proof device (30); a first seal (1) is set under the beam outside the first roller (3), and the upper end of the first seal (1) is set close to the beam; the lower end of the first seal (1) is connected to the lintel (29); a smoke-proof device (30) is set on the lintel (29). The second sealing (2) is set between the second roller (4) and the rolling door motor (5); the upper end of the second sealing (2) is fixed above the inner side of the beam, and the lower end of the second sealing (2) overlaps with the high temperature heat insulation curtain laid inside the box (6); when the fireproof rolling door is raised and lowered, the second sealing (2) is set close to the outer side of the second roller (4).

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