Fireproof iron door

Abstract

The application discloses a fireproof iron door and relates to the technical field of mechanical hands, solves the problems that the fireproof iron door is easily sucked flat, causes the iron door to leak air and be damaged and does not work when the fireproof iron door is too thin, and the fireproof iron door causes inconvenience and large limitation when the fireproof iron door is too thick. The fireproof iron door comprises iron door base columns, a transverse beam, a wind blocking mechanism and an expansion type rolling shutter mechanism, the iron door base columns are provided in two groups, and the transverse beam is arranged between the two groups of iron door base columns. In the application, a plurality of vertical blocking rods can cooperate with a horizontally arranged T-shaped blocking rod to stably and firmly support and protect the rolling shutter door plate arranged on the side surface, and the problems of the rolling shutter door plate being sucked flat due to the negative pressure generated in a mine are reduced. When the rolling shutter door plate is supported and protected by adopting the above structure, the rolling shutter door plate can be arranged to be relatively thin, and the opening and closing operation of the fireproof iron door is more convenient.

Description

Technical Field

[0001] This invention relates to the field of robotic arm technology, specifically to a fireproof iron door. Background Technology

[0002] During mine construction, fireproof iron doors should be installed at the air intake. These doors must be airtight and easy to close, and should not obstruct hoisting, transportation, or personnel passage when open. They should also be regularly maintained to ensure safety in the event of a fire or explosion.

[0003] Chinese patent application CN117605390A discloses a remotely monitored telescopic fire door, including a door frame. The door frame has an internal telescopic mechanism comprising two sets of threaded rods, a connecting plate, multiple transmission rods, and multiple transmission rods. Both sets of threaded rods are rotatably connected to the inner wall of the door frame. A bevel gear is fixedly connected to the top of each set of threaded rods. Threaded blocks are fixedly connected to both ends of the connecting plate. This invention, through the coordinated arrangement of the telescopic mechanism, the dual-axis forward and reverse motor, the bevel gears, and the door frame, enables the device to have a telescopic function. This effectively avoids the situation where the door cannot retract when not in use due to a lack of telescopic functionality. It not only ensures convenient access when not in use but also effectively saves space occupied when not in use.

[0004] However, this fireproof iron door has the following drawbacks in practical use: 1. When existing fireproof iron doors are installed and used in corresponding locations (mine construction), the high negative pressure at the mine's air intake makes it difficult to open and close ordinary fireproof iron doors. If the fireproof iron door is too thin, it is easily flattened, causing air leakage and damage, rendering it ineffective. On the other hand, if the fireproof iron door is too thick, it will cause problems such as inconvenience in opening and closing, resulting in significant limitations. 2. Existing fireproof iron doors typically use a roller shutter mechanism to open and close the door frame. However, in actual operation, the negative pressure generated inside the mine can cause the roller shutter to be drawn in, resulting in gaps on the side walls and bottom. This leads to poor blocking and sealing against flames or hot gases from fires or explosions, resulting in low safety. Summary of the Invention

[0005] The purpose of this invention is to provide a fireproof iron door to solve the problems mentioned in the background art.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This invention provides a fireproof iron door, comprising iron door base columns, a horizontal beam, a retractable windbreak mechanism, and an expandable roller shutter mechanism. Two sets of iron door base columns are provided, with a horizontal beam installed between the two sets of iron door base columns. A retractable windbreak mechanism extending into the horizontal beam is installed on the side of one set of iron door base columns, extending between the two sets of iron door base columns. The transverse beam is internally equipped with an outwardly extending expansion roller shutter mechanism, which is located on the side of the windbreak mechanism. The unrolled roller shutter panel extends between the two sets of iron door base columns. The windbreak mechanism includes: A winding and unwinding assembly is installed on the side of a set of iron gate base columns. Two sets of steel wire ropes are wound inside the winding and unwinding assembly, and the steel wire ropes extend into the interior of the transverse beam. A windbreak tensioning assembly is movably connected to the inner bottom of the transverse beam. The windbreak tensioning assembly is connected to two sets of steel wire ropes. The bottom of the windbreak tensioning assembly extends between the two sets of iron gate base columns. The windbreak tensioning assembly abuts against the side of a deflection beam assembly, which is installed at the inner bottom of one set of iron gate base columns. A smoke detector is installed on the side of one of the iron gate base columns, and a limiter is provided on both the left and right sides of the windbreak bar tensioning assembly.

[0007] As a preferred embodiment of the present invention, the expandable roller blind mechanism includes: A roller shutter is installed on the side of the transverse beam. The inside of the roller shutter is hollow, and a retracting shaft is rotatably connected to the center of the inside of the roller shutter. A first drive belt is connected to the outer side of one end of the take-up and release shaft via a synchronous pulley located on its inner side. The first drive belt is movably connected to the outer side of the roller shutter drum, and its inner side is connected to the output end of the take-up and release motor via a synchronous pulley. The receiver / discharge motor is installed inside one side of the iron gate base column; The roller blind metal roller is installed and fixed on the outside of the take-up and release shaft. Two sets of roller blind metal rollers are provided. The inside of the roller blind metal roller is provided with a threaded expansion component that extends into the inside of the take-up and release shaft.

[0008] As a preferred embodiment of the present invention, the threaded expansion component includes: A threaded shaft is rotatably connected inside the take-up and release shaft. The outer surface of the threaded shaft has multiple sets of threads. The threaded shaft is connected to the output end of a servo motor. The servo motor is installed inside one side of another set of iron gate base columns, and the servo motor is located on the side of the retracting shaft; A threaded slider is threadedly connected to the outside of the threaded portion, and is slidably connected to the take-up and release shaft. Multiple protrusions are mounted on the outside of the threaded slider. The protrusion and the horizontal slide are slidably connected. The horizontal slide is formed on the inner wall of the take-up and release shaft, and multiple sets of the horizontal slide are provided.

[0009] In a preferred embodiment of the present invention, one side of the bottom of the protrusion is provided as an inclined surface, and one side of the bottom of the protrusion abuts against an inclined slider, and a tensioning rod is installed on the top of the inclined slider. The inclined slider and tensioning rod are disposed through the movable part, which is located inside the roller shutter metal roller. Multiple sets of the movable part are provided. The tensioning rod and the roller shutter metal roller are slidably connected. A compression spring is installed inside the movable part on the outer side of the tensioning rod. The bottom of the compression spring is installed on the top of the inclined slider.

[0010] In a preferred embodiment of the present invention, a roller shutter door panel is wound up on the outer side of the roller shutter metal roller, and the inner wall of the roller shutter door panel abuts against the outer side of the plurality of tensioning rods. The roller shutter door panel extends to the outside of the roller shutter cylinder.

[0011] As a preferred embodiment of the present invention, the winding and unwinding assembly includes: A base is installed on one side of the bottom of a set of iron gate base columns. A speed-regulating motor is mounted on the top of the base by screws, and the output end of the speed-regulating motor is connected to a main shaft. The main shaft is rotatably connected inside the side baffle, the side baffle is installed on the top of the base, and a set of take-up and untake-down drums are installed on the outside of the main shaft. A set of wire ropes is wound on the outside of the take-up and untake-down drums. A first gear is mounted on the outside of the main shaft and is rotatably connected to the side of the side baffle. A second gear is meshed with the top of the first gear and is rotatably connected to the side of the side baffle.

[0012] In a preferred embodiment of the present invention, a connecting rod is connected to the side of the second gear, the connecting rod being rotatably connected to the side of an iron gate base column, and a second transmission belt is connected to the outer side of the connecting rod via a synchronous pulley. The second transmission belt is movably connected to the side of an iron gate base column. A drive shaft is connected to the inner side of the second transmission belt via a synchronous pulley. A set of winding and unwinding drums is mounted on the outer side of the drive shaft. The bottom of the drive shaft is rotatably connected to the inside of the L-shaped frame, which is installed on the side of an iron gate base column.

[0013] In a preferred embodiment of the present invention, the wire rope is movably connected to the outside of the pulley, and the pulley is rotatably connected to the inside of the mounting block; multiple sets of mounting blocks and pulleys are provided. The steel wire rope located outside the main shaft passes through two sets of pulleys, and the two sets of pulleys are installed on the same side of the top of the two sets of iron gate base columns. The steel wire rope located outside the drive shaft passes through one pulley.

[0014] As a preferred embodiment of the present invention, the windshield rod tensioning assembly includes: A sliding support is slidably connected to the inner bottom of the transverse beam. Multiple sliding supports are provided, and each sliding support has a vertical stop bar installed at its bottom. Adjacent sets of sliding supports are connected by a connecting rope. One side of the bottom of the vertical stop bar abuts against the side of the deflection beam assembly; The metal hooks are installed on the left and right sides of a set of sliding supports. There are two sets of metal hooks, and the two sets of metal hooks are connected to two sets of wire ropes.

[0015] As a preferred embodiment of the present invention, the deflection beam assembly includes: A deflection motor is installed at the inner bottom of a set of iron gate base columns. The output end of the deflection motor is connected to a T-shaped stop bar, which passes through an L-shaped slot and extends to the outer side of the iron gate base column. The L-shaped groove is located at the included angle inside the iron gate base column, and the side of the T-shaped stop bar abuts against a vertical stop bar. A trigger module is attached to the side of the T-shaped stop bar and is installed on the side of a set of iron gate base posts.

[0016] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects: 1. When sealing a mine shaft within a fireproof iron door, a variable-speed motor can be activated to rotate the main shaft and a set of winding drums connected to its output end. This winds up the outer steel wire rope and unfolds multiple vertical stops to support and protect the sides of the roller shutter door. Simultaneously, the rotation of the main shaft also drives the gears connected to its side and another set of winding drums to rotate, automatically unwinding the outer steel wire rope of the other set of drums. This ensures no conflict or interference occurs when the vertical stops are extended and moved horizontally. The unfolded vertical stops, in conjunction with horizontally positioned T-shaped stops, provide stable and secure support for the side roller shutter door, reducing the risk of the door collapsing due to negative pressure in the mine. Furthermore, using this structure allows for a thinner roller shutter door, making the opening and closing of the fireproof iron door more convenient. 2. In fireproof iron doors, the design incorporates smoke detectors, multiple limit switches, and trigger modules. In the event of a fire or explosion, the generated smoke will trigger the smoke detector, automatically activating the deflection motor. This automatically rotates the T-shaped stop bar, causing it to abut against the side of the trigger module. The trigger module then sends a signal to activate the speed-regulating motor, enabling the unfolding of multiple vertical stop bars. Simultaneously, once the vertical stop bars reach their corresponding positions, they trigger the limit switches, sending signals to the retractor motor to unroll the shutter door panel. This achieves automated fire prevention operations, making the operation more intelligent. 3. In fireproof iron doors, after the roller shutter panel is rolled up and unrolled, the servo motor can drive multiple sets of tension rods to move simultaneously inward or outward, squeezing and pressing the unrolled roller shutter panel to prevent loosening. This prevents large gaps from forming at the connection between the roller shutter panel and the iron door base, preventing smoke and flame leakage. This results in better sealing and higher safety for the mine. Simultaneously, the compression spring design ensures that the moving tension rods and oblique sliders always contact the side of the protrusion, allowing for easy adjustment of tension by rotating the servo motor. 4. In fireproof iron doors, the T-shaped stops that support and protect the roller shutter door panel can be in a longitudinal position when not in use. Multiple sets of vertical stops can be moved to the inside of the iron door base column when not in use. The roller shutter door panel can be stored or rolled into the inside of the roller shutter tube when not in use, ensuring that the above structure will not obstruct the normal construction work of workers when not in use. Attached Figure Description

[0017] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0018] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two sets of devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall front view of the present invention; Figure 3 This is a schematic diagram of the overall main view of the present invention; Figure 4 This is a schematic diagram of the overall orthographic section of the present invention; Figure 5 This is a schematic diagram of the structure of the expansion roller blind mechanism of the present invention; Figure 6 This is a schematic diagram of the structure of the transverse beam and the connection between it and the expansion roller shutter mechanism of the present invention (section view). Figure 7 This is a cross-sectional schematic diagram of the expansion roller shutter mechanism of the present invention; Figure 8 This is the present invention. Figure 7 Enlarged structural diagram of region A in the middle; Figure 9 This is a schematic diagram of the windbreak mechanism of the present invention; Figure 10 This is the present invention. Figure 9 Enlarged structural diagram of region B in the middle; Figure 11 This is a schematic diagram of the structure of the unwinding and rewinding assembly of the present invention; Figure 12 This is a structural schematic diagram of the deflection beam assembly of the present invention; In the picture: 10. Iron gate base column; 100. Smoke detector; 20. Horizontal beam; 30. Windbreak mechanism; 40. Expanding roller shutter mechanism; 400. Roller shutter door panel; 401. Roller shutter tube; 402. Retracting shaft; 403. First drive belt; 404. Retracting motor; 405. Roller shutter metal roller; 406. Threaded expansion component; 4061. Threaded shaft; 4062. Threaded section; 4063. Servo motor; 4064. Threaded slider; 4065, Protrusion; 40651, Angled slider; 40652, Tensioning rod; 40653, Movable part; 40654, Compression spring; 4066, Horizontal chute; 50. Take-up and unwinding assembly; 501. Base; 502. Speed-regulating motor; 503. Main shaft; 504. Take-up and unwinding drum; 505. First gear; 5051. Side baffle; 506. Second gear; 5061. Connecting shaft; 5062. Second transmission belt; 5063. Drive shaft; 5064. L-shaped frame; 500, Wire rope; 5001, Pulley; 5002, Mounting block; 60. Windshield rod tension assembly; 600. Limiter; 601. Sliding support; 6011. Connecting rope; 602. Vertical stop bar; 603. Metal hook; 70. Deflection beam assembly; 701. Deflection motor; 702. T-shaped stop bar; 703. L-shaped groove; 704. Trigger module. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] Please see Figures 1-12A fireproof iron door includes iron door base posts 10, a horizontal beam 20, a windbreak mechanism 30, and an expandable roller shutter mechanism 40. Two sets of iron door base posts 10 are provided, with the horizontal beam 20 installed between the two sets of iron door base posts 10. A windbreak mechanism 30 extending into the horizontal beam 20 is installed on the side of one set of iron door base posts 10, extending between the two sets of iron door base posts 10. An expandable roller shutter mechanism 40 extending outwards is provided inside the horizontal beam 20, located on the side of the windbreak mechanism 30. The roller shutter door panel 400 of the expandable roller shutter mechanism 40 extends between the two sets of iron door base posts 10. The windbreak mechanism 30 includes a retractable roller assembly 50. A smoke detector 100 is installed on the side of a set of iron gate base columns 10. The winding and unwinding assembly 50 has two sets of steel wire ropes 500 wound inside, and the steel wire ropes 500 extend into the interior of the transverse beam 20. A windbreak rod tensioning assembly 60 is movably connected to the inner bottom of the transverse beam 20. The windbreak rod tensioning assembly 60 is connected to the two sets of steel wire ropes 500. The bottom of the windbreak rod tensioning assembly 60 extends between the two sets of iron gate base columns 10. The windbreak rod tensioning assembly 60 abuts against the side of the deflection beam assembly 70. The deflection beam assembly 70 is installed at the inner bottom of a set of iron gate base columns 10. A smoke detector 100 is installed on the side of one of the iron gate base columns 10. A limiter 600 is provided on both the left and right sides of the windbreak rod tensioning assembly 60.

[0022] The working principle described above is as follows: When the expanding roller shutter mechanism 40 unrolls the roller shutter door panel 400 to seal the gap between the two sets of iron gate base columns 10, the deflection beam assembly 70 is first activated to rotate the horizontal beam between the two sets of iron gate base columns 10. Then, the unrolling / rewinding assembly 50 operates, driving multiple sets of vertical beams to move horizontally, blocking and concealing the gap between the two sets of iron gate base columns 10. Upon completion of this operation, the expanding roller shutter mechanism 40 is activated to unroll the roller shutter door panel 400. At this time, the roller shutter door panel 400 abuts against the side of the windbreak bar tension assembly 60. The windbreak bar tension assembly 60 provides protection for the roller shutter door panel 400, preventing damage from the mine's negative pressure and increasing its strength. Meanwhile, after the expansion roller shutter mechanism 40 has finished operating, it can support and position the roller shutter door panel 400 as it rolls up and down, reducing problems such as gaps between the roller shutter door panel 400 and the iron door base column 10 caused by the negative pressure generated in the mine.

[0023] In this invention, the smoke detector 100 can sense smoke and flames generated by a fire or explosion, and automatically activate the windbreak mechanism 30 and the expanding roller shutter mechanism 40 to achieve automated sealing operations. The limit switch 600 is designed to sense the position of the windbreak bar extension assembly 60 in the retracted state, and can sequentially and automatically perform each step and process of the fireproof iron door of this invention.

[0024] For details, please refer to the following: Figure 5 and Figure 6 The expandable roller blind mechanism 40 includes a roller blind tube 401, which is installed on the side of the transverse beam 20. The inside of the roller blind tube 401 is hollow, and a take-up and release shaft 402 is rotatably connected to the center of the inside of the roller blind tube 401. A first transmission belt 403 is connected to the outside of one end of the take-up and release shaft 402 through a synchronous pulley provided on the inside. The first transmission belt 403 is movably connected to the outside of the roller blind tube 401. The inside of the first transmission belt 403 is connected to the output end of the take-up and release motor 404 through a synchronous pulley. The take-up and release motor 404 is installed inside one side of the iron gate base column 10. A roller blind metal roller 405 is installed and fixed on the outside of the take-up and release shaft 402. Two sets of roller blind metal rollers 405 are provided. The inside of the roller blind metal roller 405 is provided with a threaded expansion component 406 extending into the inside of the take-up and release shaft 402.

[0025] In this embodiment, the threaded expansion component 406 includes a threaded shaft 4061, which is rotatably connected to the inside of the take-up shaft 402. The outer surface of the threaded shaft 4061 is provided with multiple sets of threaded portions 4062. The threaded shaft 4061 is connected to the output end of a servo motor 4063, which is installed inside one side of another set of iron gate base columns 10 and is located on the side of the take-up shaft 402. The threaded slider 4064 is threadedly connected to the outside of the threaded portions 4062 and is slidably connected to the take-up shaft 402. Multiple protrusions 4065 are installed on the outside of the threaded slider 4064, which are slidably connected to horizontal grooves 4066. The horizontal grooves 4066 are formed on the inner wall of the take-up shaft 402, and multiple sets of horizontal grooves 4066 are provided.

[0026] In the above embodiment, after the roller shutter door panel 400 completes its winding and unwinding, the servo motor 4063 is activated, driving the threaded shaft 4061 connected to its output end to rotate. When the threaded shaft 4061 rotates, the threaded portion 4062 on its outer surface rotates, allowing the threaded slider 4064, threadedly connected to the outer side of the threaded portion 4062, to move horizontally. Subsequently, as the threaded slider 4064 moves horizontally, it drives the multiple sets of protrusions 4065 mounted on its outer side to move. The design of the horizontal groove 4066 ensures the stability of the protrusions 4065 during horizontal movement.

[0027] In the fireproof iron door of the present invention, when the roller shutter door panel 400 is driven to perform the winding and unwinding operation, the winding and unwinding motor 404 is started to operate, which drives the first transmission belt 403 connected to the outer side of its output end through the synchronous pulley. When the first transmission belt 403 is operating, it drives the winding and unwinding shaft 402 connected to the inner side through the synchronous pulley to rotate, and causes the roller shutter metal roller 405 connected to the outer side of the winding and unwinding shaft 402 to rotate.

[0028] For further details, please refer to [the website / information]. Figure 7 and Figure 8 One side of the bottom of the protrusion 4065 is set as an inclined surface, and one side of the bottom of the protrusion 4065 abuts against the inclined slider 40651. The top of the inclined slider 40651 is equipped with a tension rod 40652. The inclined slider 40651 and the tension rod 40652 are arranged through the movable part 40653. The movable part 40653 is opened inside the roller shutter metal roller 405. Multiple sets of movable parts 40653 are provided. The tension rod 40652 and the roller shutter metal roller 405 are slidably connected. The outer side of the tension rod 40652 is provided with a compression spring 40654 installed inside the movable part 40653. The bottom of the compression spring 40654 is installed on the top of the inclined slider 40651.

[0029] In the above embodiment, a roller shutter door panel 400 is wound up on the outer side of the roller shutter metal roller 405. The inner wall of the roller shutter door panel 400 abuts against the outer side of multiple sets of tensioning rods 40652. The roller shutter door panel 400 extends to the outer side of the roller shutter tube 401. When the roller shutter metal roller 405 is rotated, the roller shutter door panel 400 on its outer side can be driven to perform winding and unwinding operations.

[0030] In the fireproof iron door of the present invention, when the protrusion 4065 moves, its side can move up and down inside the movable part 40653 via the obliquely abutting slider 40651. Then, when the oblique slider 40651 moves up and down, it can drive the tension rod 40652 connected to its top to move up and down, supporting and compressing the roller shutter door panel 400 that the top of the tension rod 40652 abuts against, increasing the tension of the roller shutter door panel 400 after it is rolled up and down, preventing loosening or other problems. When it is necessary to move the tension rod 40652 downwards, the protrusion 4065 can move in the opposite direction. At this time, the design of the compression spring 40654 ensures that the protrusion 4065 and the oblique slider 40651 are always in contact.

[0031] For details, please refer to the following: Figure 9 and Figure 11The winding and unwinding assembly 50 includes a base 501, which is installed on one side of the bottom of a set of iron gate base columns 10. A speed-regulating motor 502 is installed on the top of the base 501 by screws. The output end of the speed-regulating motor 502 is connected to a main shaft 503. The main shaft 503 is rotatably connected to the inside of a side baffle 5051, which is installed on the top of the base 501. A set of winding and unwinding drums 504 is installed on the outside of the main shaft 503, and a set of wire ropes 500 is wound on the outside of the winding and unwinding drums 504. A first gear 505 is installed on the outside of the main shaft 503 and is rotatably connected to the side of the side baffle 5051. A second gear 506 is meshed on the top of the first gear 505 and is rotatably connected to the side of the side baffle 5051.

[0032] In this embodiment, a connecting rod 5061 is connected to the side of the second gear 506. The connecting rod 5061 is rotatably connected to the side of an iron gate base 10. The outer side of the connecting rod 5061 is connected to a second transmission belt 5062 via a synchronous pulley. The second transmission belt 5062 is movably connected to the side of an iron gate base 10. The inner side of the second transmission belt 5062 is also connected to a drive shaft 5063 via a synchronous pulley. A set of take-up and untake-down drums 504 are installed on the outer side of the drive shaft 5063. The bottom of the drive shaft 5063 is rotatably connected to the inside of an L-shaped frame 5064. The L-shaped frame 5064 is installed on the side of an iron gate base 10.

[0033] In the above embodiment, when the second gear 506 rotates, it drives the connecting rod 5061 connected to its side to rotate, causing the second transmission belt 5062 connected to the outer side of the connecting rod 5061 via a synchronous pulley to operate. When the second transmission belt 5062 operates, it drives the drive shaft 5063 connected to its inner side via a synchronous pulley to rotate, so that a set of winding and unwinding drums 504 connected to the outer side of the drive shaft 5063 can perform winding and unwinding operations of the wire rope 500.

[0034] In the fireproof iron door of the present invention, when it is necessary to perform winding and unwinding operations on two sets of steel wire ropes 500, the speed regulating motor 502 is started to operate, driving the main shaft 503 connected to its output end to rotate. At this time, when the main shaft 503 rotates, it can drive the winding and unwinding drum 504 installed on its outer side to perform winding operations, and on the other hand, it can drive the first gear 505 connected to its bottom to rotate, realizing the unwinding operation of the other set of winding and unwinding drums 504.

[0035] For details, please refer to the following: Figure 9The wire rope 500 is movably connected to the outside of the pulley 5001, and the pulley 5001 is rotatably connected to the inside of the mounting block 5002. The mounting block 5002 and the pulley 5001 are provided in multiple sets. Among them, the wire rope 500 located outside the main shaft 503 passes through two sets of pulleys 5001. The two sets of pulleys 5001 are installed on the same side of the top of the two sets of iron gate base columns 10. The wire rope 500 located outside the drive shaft 5063 passes through one pulley 5001.

[0036] In the fireproof iron door of the present invention, when the wire rope 500 is being wound up or unwound, the design of the pulley 5001 guides the wire rope 500. At this time, when one set of wire ropes 500 is being wound up, it will cause one side of the windbreak bar tensioning assembly 60 to move. Meanwhile, the other set of wire ropes 500 will be unwound, allowing the other side of the windbreak bar tensioning assembly 60 to unwind.

[0037] For details, please refer to the following: Figure 9 and Figure 10 The windbreak bar tensioning assembly 60 includes a sliding support 601, which is slidably connected to the inner bottom of the transverse beam 20. Multiple sliding supports 601 are provided, and vertical stops 602 are installed at the bottom of each sliding support 601. Adjacent sets of sliding supports 601 are connected by connecting ropes 6011. One side of the bottom of the vertical stops 602 abuts against the side of the deflection beam assembly 70. Metal hooks 603 are installed on the left and right sides of a set of sliding supports 601. Two sets of metal hooks 603 are provided, and the two sets of metal hooks 603 are connected to two sets of wire ropes 500.

[0038] In the fireproof iron door of the present invention, when the wire rope 500 is unwound, a set of metal hooks 603 and sliding supports 601 connected to the side of the wire rope 500 can slide at the inner bottom of the transverse beam 20, causing multiple sets of sliding supports 601 and vertical stops 602 to move horizontally, so that each set of vertical stops 602 can abut against various parts of the side of the T-shaped stop 702, thereby achieving the protective operation of the roller shutter door panel 400. When the wire rope 500 is wound up, another set of metal hooks 603 and sliding supports 601 connected to the side of another set of wire rope 500 can move horizontally, causing multiple sets of sliding supports 601 and vertical stops 602 to move horizontally, thereby achieving the winding and storage operation of multiple sets of vertical stops 602.

[0039] For details, please refer to the following: Figure 12The deflection beam assembly 70 includes a deflection motor 701, which is installed at the inner bottom of a set of iron gate base columns 10. The output end of the deflection motor 701 is connected to a T-shaped stop bar 702, which is set through an L-shaped groove 703 and extends to the outside of the iron gate base column 10. The L-shaped groove 703 is opened at the included angle inside the iron gate base column 10. The side of the T-shaped stop bar 702 abuts against a vertical stop bar 602. A trigger module 704 abuts against the side of the T-shaped stop bar 702 and is installed on the side of the set of iron gate base columns 10.

[0040] In the fireproof iron door of the present invention, when protecting the roller shutter door panel 400, the deflection motor 701 is started to operate, driving the T-shaped stop bar 702 connected to its output end to rotate inside the L-shaped groove 703. This allows the vertically arranged T-shaped stop bar 702 to move to a horizontal state, providing wind protection for the roller shutter door panel 400 located on the side of the T-shaped stop bar 702.

[0041] Therefore, any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this invention, based on the technical solution and inventive concept of this invention, should be covered within the protection scope of this invention.

Claims

1. A fireproof iron door, comprising an iron door base column (10), a horizontal beam (20), a windbreak mechanism (30), and an expandable roller shutter mechanism (40), characterized in that: Two sets of iron gate base columns (10) are provided, and a transverse beam (20) is installed between the two sets of iron gate base columns (10). A retractable windbreak mechanism (30) extending into the transverse beam (20) is installed on the side of one set of iron gate base columns (10). The retractable windbreak mechanism (30) extends between the two sets of iron gate base columns (10). The transverse beam (20) is internally provided with an expanding roller shutter mechanism (40) extending outward. The expanding roller shutter mechanism (40) is located on the side of the windbreak mechanism (30). The unrolled roller shutter door panel (400) of the expanding roller shutter mechanism (40) extends between the two sets of iron door base columns (10). The windbreak mechanism (30) includes: A winding and unwinding assembly (50) is installed on the side of a set of iron gate base columns (10). Two sets of steel wire ropes (500) are wound inside the winding and unwinding assembly (50), and the steel wire ropes (500) extend into the interior of the transverse beam (20). A windbreak tension assembly (60) is movably connected to the inner bottom of the transverse beam (20). The windbreak tension assembly (60) is connected to two sets of steel wire ropes (500). The bottom of the windbreak tension assembly (60) extends between two sets of iron gate base columns (10). The windbreak tension assembly (60) abuts against the side of a deflection beam assembly (70), which is installed at the inner bottom of a set of iron gate base columns (10). A smoke detector (100) is installed on the side of one of the iron gate base columns (10), and a limiter (600) is provided on both the left and right sides of the windbreak bar tension assembly (60). The expandable roller blind mechanism (40) includes: Roller shutter (401) is installed on the side of the transverse beam (20). The inside of the roller shutter (401) is hollow. A retractable shaft (402) is rotatably connected to the center of the inside of the roller shutter (401). A first drive belt (403) is connected to the outer side of one end of the take-up and release shaft (402) via a synchronous pulley on its inner side. The first drive belt (403) is movably connected to the outer side of the roller shutter drum (401). The inner side of the first drive belt (403) is connected to the output end of the take-up and release motor (404) via a synchronous pulley. The receiver / discharger (404) is installed inside one side of the iron gate base column (10); Roller blind metal roller (405) is installed and fixed on the outside of the take-up shaft (402). Two sets of roller blind metal roller (405) are provided. The inside of the roller blind metal roller (405) is provided with a threaded expansion component (406) extending into the inside of the take-up shaft (402). The threaded expansion component (406) includes: A threaded shaft (4061) is rotatably connected inside the take-up and release shaft (402). The outer surface of the threaded shaft (4061) is provided with multiple sets of threaded portions (4062). The threaded shaft (4061) is connected to the output end of a servo motor (4063). The servo motor (4063) is installed inside one side of another set of iron gate base columns (10), and the servo motor (4063) is located on the side of the retracting shaft (402). A threaded slider (4064) is threadedly connected to the outside of the threaded portion (4062). The threaded slider (4064) is slidably connected to the take-up and release shaft (402). A plurality of protrusions (4065) are installed on the outside of the threaded slider (4064). The protrusion (4065) and the horizontal slide (4066) are slidably connected. The horizontal slide (4066) is formed on the inner wall of the take-up and release shaft (402). Multiple sets of the horizontal slide (4066) are provided.

2. A fireproof iron door according to claim 1, characterized in that: One side of the bottom of the protrusion (4065) is set as an inclined surface, and one side of the bottom of the protrusion (4065) abuts against an inclined slider (40651). A tension rod (40652) is installed on the top of the inclined slider (40651). The inclined slider (40651) and tension rod (40652) are disposed through the movable part (40653), which is located inside the roller shutter metal roller (405). Multiple sets of the movable part (40653) are provided. The tension rod (40652) and the roller shutter metal roller (405) are slidably connected. A compression spring (40654) is installed inside the movable part (40653) on the outside of the tension rod (40652). The bottom of the compression spring (40654) is installed on the top of the inclined slider (40651).

3. A fireproof iron door according to claim 2, characterized in that: The outer side of the roller shutter metal roller (405) is wound with a roller shutter door panel (400), and the inner wall of the roller shutter door panel (400) abuts against the outer side of the plurality of tension rods (40652). The roller shutter door panel (400) extends to the outside of the roller shutter cylinder (401).

4. A fireproof iron door according to claim 1, characterized in that: The take-up and untake-down assembly (50) includes: The base (501) is installed on one side of the bottom of a set of iron gate base columns (10). A speed-regulating motor (502) is installed on the top of the base (501) by screws. The output end of the speed-regulating motor (502) is connected to a main shaft (503). The main shaft (503) is rotatably connected to the inside of the side baffle (5051), the side baffle (5051) is installed on the top of the base (501), and a set of take-up and untake-up drums (504) are installed on the outside of the main shaft (503). A set of wire ropes (500) are wound on the outside of the take-up and untake-up drums (504). A first gear (505) is mounted on the outside of the main shaft (503). The first gear (505) is rotatably connected to the side of the side baffle (5051). A second gear (506) is meshed with the top of the first gear (505). The second gear (506) is rotatably connected to the side of the side baffle (5051).

5. A fireproof iron door according to claim 4, characterized in that: The second gear (506) is connected to a connecting rod (5061) on its side. The connecting rod (5061) is rotatably connected to the side of an iron gate base column (10). The outer side of the connecting rod (5061) is connected to a second transmission belt (5062) via a synchronous pulley. The second transmission belt (5062) is movably connected to the side of an iron gate base column (10). The inner side of the second transmission belt (5062) is also connected to a drive shaft (5063) via a synchronous pulley. A set of winding and unwinding drums (504) are installed on the outer side of the drive shaft (5063). The bottom of the drive shaft (5063) is rotatably connected to the inside of the L-shaped frame (5064), which is installed on the side of an iron gate base (10).

6. A fireproof iron door according to claim 5, characterized in that: The wire rope (500) is movably connected to the outside of the pulley (5001), and the pulley (5001) is rotatably connected to the inside of the mounting block (5002). Multiple sets of mounting blocks (5002) and pulleys (5001) are provided. Among them, the steel wire rope (500) located outside the main shaft (503) passes through two sets of pulleys (5001), and the two sets of pulleys (5001) are installed on the same side of the top of the two sets of iron gate base columns (10). The steel wire rope (500) located outside the drive shaft (5063) passes through one pulley (5001).

7. A fireproof iron door according to claim 1, characterized in that: The windshield extension assembly (60) includes: A sliding support (601) is slidably connected to the inner bottom of the transverse beam (20). Multiple sliding supports (601) are provided, and each sliding support (601) has a vertical stop bar (602) installed at its bottom. Adjacent sets of sliding supports (601) are connected by a connecting rope (6011). One side of the bottom of the vertical stop bar (602) abuts against the side of the deflection beam assembly (70); Metal hooks (603) are installed on the left and right sides of a set of sliding supports (601). There are two sets of metal hooks (603), and the two sets of metal hooks (603) are connected to two sets of wire ropes (500).

8. A fireproof iron door according to claim 7, characterized in that: The deflection beam assembly (70) includes: A deflection motor (701) is installed at the inner bottom of a set of iron gate base posts (10). The output end of the deflection motor (701) is connected to a T-shaped stop bar (702). The T-shaped stop bar (702) is installed through an L-shaped groove (703) and extends to the outer side of the iron gate base post (10). The L-shaped groove (703) is located at the included angle inside the iron gate base column (10), and the side of the T-shaped stop bar (702) abuts against the vertical stop bar (602). Trigger module (704) abuts against the side of the T-shaped stop bar (702) and is installed on the side of a set of iron gate base posts (10).

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