A double-layer composite self-filtering dust-proof fire shutter

Abstract

The present invention provides a double-layer composite self-filtering dust-proof fire shutter, comprising a window frame, a filter and prevention component is arranged inside the window frame, a top plate is fixed on the top surface inside the window frame, a bottom box is fixed on the bottom surface inside the window frame, a plurality of fireproof panels are arranged between the bottom surface of the top plate and the top surface of the bottom box, a synchronization component is connected between the side walls of the plurality of fireproof panels, a rotating column is arranged inside the fireproof panel, the top end of the rotating column is rotatably connected to the inside of the top plate, the bottom end of the rotating column is rotatably connected to the inside of the bottom box, a gear is sleeved on the bottom end of the rotating column, a limit plate is fixed inside the bottom box, a tooth plate is fitted on one side of the limit plate, one side of the gear is meshed with the tooth plate, and a reset component is arranged between the side wall of a fireproof panel and the side wall of the bottom box. The present invention pulls the reset component by adjusting the flipping mechanism, thereby driving a single fireproof panel to flip, and the single fireproof panel is driven by the gear and the tooth plate to flip the bottom, and the synchronization component is combined to make the tops of the plurality of fireproof panels flip synchronously, and the adjustment operation is stable and simple.

Description

Technical Field

[0001] The invention relates to the technical field of blinds, and in particular to a double-layer composite self-dust filtering fireproof blind. Background Art

[0002] Venetian blinds are a common window covering that consists of a series of parallel blades that can be turned to adjust light and privacy. The blades of a blind can be horizontal or vertical and made of a variety of materials, including wood, plastic, and metal (such as aluminum). By adjusting the angle of the blades, the user can control the amount of light entering the room while maintaining ventilation or privacy. Some blinds are fire-resistant structures. Their main function is to prevent or slow the spread of fire in the event of a fire, providing additional safety. Such blinds are usually made of fire-resistant materials, such as certain types of metal or composite materials, which can resist high temperatures and flames for a certain period of time to protect the safety of people and property indoors.

[0003] The current fireproof shutters use flippable blades and a linkage structure at the bottom of the blades. When a fire occurs, the shutters are closed by synchronously rotating multiple blades. Although the operation efficiency is high and it can achieve a good fire prevention effect, this fireproof shutter has the following problems:

[0004] 1. The linkage between multiple blades is unstable and prone to disconnection, making it difficult to avoid multiple blades from stably flipping and closing the shutters, reducing the stability and safety of fire protection;

[0005] 2. During normal use, the blinds need to be opened. When not in use for a long time or in case of fire, the blinds need to be closed. The switching between these two modes is not flexible, which reduces the convenience and safety of use.

[0006] In summary, there is a need for a shutter that is fire-resistant and stable and has flexible switching modes of use. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a double-layer composite self-dust filtering fireproof shutter, which solves the problems mentioned in the background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A double-layer composite self-filtering dust-proof fire shutter comprises a window frame, a filter and prevention assembly is arranged inside the window frame, a top plate is fixed to the top surface of the window frame, a bottom box is fixed to the bottom surface of the window frame, a plurality of fireproof panels are arranged between the bottom surface of the top plate and the top surface of the bottom box, a synchronization assembly is connected between the side walls of the plurality of fireproof panels, a rotating column is arranged inside the fireproof panel, the top end of the rotating column is rotatably connected to the inside of the top plate, the bottom end of the rotating column is rotatably connected to the inside of the bottom box, a gear is sleeved on the bottom end of the rotating column, a limiting plate is fixed inside the bottom box, a tooth plate is fitted on one side of the limiting plate, and the gear One side of the wheel is meshed and connected with the tooth plate, a reset component is arranged between a side wall of a fireproof board and a side wall of the bottom box, a turning mechanism is arranged on the side wall of the bottom box, a winding structure is arranged inside the turning mechanism, one end of the winding structure of the turning mechanism is connected with the reset component, the turning mechanism turns over a fireproof board by pulling the reset component, the bottoms of multiple fireproof boards are driven to turn over synchronously by meshing with the tooth plate and the gear, the tops of multiple fireproof boards are connected by the synchronization component for synchronous turning, and multiple fireproof boards are turned over so that the side walls are flush and closed inside the window frame;

[0010] The side wall of the fireproof board is a stepped structure, and a side baffle is fixed to the inner wall of the window frame. The side baffle is arranged inside the stepped structure by turning over the fireproof board, and the stepped structures of two adjacent fireproof boards are arranged in a closed manner.

[0011] The synchronization component includes a second flip frame and a connecting plate. A plurality of second flip frames are provided and are respectively fixed to a plurality of fireproof board side walls. One end of each of the plurality of second flip frames is rotatably connected to the inside of the connecting plate.

[0012] Furthermore, the adjustment mechanism includes a fixed box, a knob, a pull-flip assembly, a locking column, a rotating shaft and a locking assembly. The fixed box is fixed to the side wall of the bottom box, a rotating shaft is connected through the inside of the fixed box, a knob is fixed to one end of the rotating shaft, and the other end of the rotating shaft is rotatably connected to the inside of the bottom box, a pull-flip assembly is sleeved on the outer wall of the rotating shaft, the pull-flip assembly is a winding structure, the pull-flip assembly is connected through the outside of the fixed box, one end of the pull-flip assembly is fixedly connected to the reset assembly, a locking column is sleeved on the outer wall of the rotating shaft, a groove is provided on the outer wall of the locking column, a locking assembly is provided on the top surface of the fixed box, the bottom end of the locking assembly is inserted into the inside of the fixed box, and the locking assembly is inserted into the groove of the locking column.

[0013] Furthermore, the reset assembly includes a first flip frame, a pull tab, a first spring and a second fixed block, the second fixed block is fixed to the side wall of the bottom box, the first flip frame is fixed to a side wall of a fireproof board, a first spring is connected between the bottom of one end of the first flip frame and the bottom of the second fixed block, a pull tab is sleeved on the bottom of one end of the first flip frame, and one side of the pull-flip assembly is connected to the inside of the pull tab.

[0014] Furthermore, the pulling and flipping assembly includes a rope drum, a pull rope and a ring. The rope drum is sleeved and fixed on the outer wall of the rotating shaft. The pull rope is wound on the outer wall of the rope drum. One end of the pull rope passes through and is connected to the outside of the fixed box. One end of the pull rope is connected to the ring, and the ring is ring-connected to the inside of the pulling piece.

[0015] Furthermore, the pull rope is made of high-temperature fuse material.

[0016] Furthermore, the locking assembly includes an insert block, a guide rod, a second spring, a fixed plate and a pull bolt. The bottom surface of the fixed plate is fixed with an insert block, the insert block is inserted into the groove of the locking column, the inside of the fixed plate is inserted with a guide rod, the bottom end of the guide rod is fixed to the top surface of the fixed box, the outer wall of the guide rod is sleeved with a second spring, the second spring is connected to the bottom surface of the fixed plate and the top surface of the fixed box, and the top surface of the fixed plate is connected to the pull bolt.

[0017] Furthermore, the filtering and preventing assembly includes a protective frame, a filter plate, a positioning block and a fixing bolt. The bottom of the side wall of the protective frame is rotatably connected to the inside of the window frame. A filter plate is fixed inside the protective frame, and multiple filter plates are arranged at intervals. A positioning block is fixed to one side of the top surface of the protective frame, and a fixing bolt is connected to the inside of the positioning block, and one end of the fixing bolt is connected to the inside of the window frame.

[0018] Furthermore, the filter plate is a three-section bending structure, and the filter plate includes an upper vertical plate, an inclined plate and a lower vertical plate. The upper vertical plates and the lower vertical plates of two adjacent filter plates are arranged in parallel and located on the same horizontal center line.

[0019] Furthermore, the top surface of the bottom box is slidably connected with a cleaning component, and multiple groups of cleaning components are arranged in parallel. One side of the cleaning component is slidably fitted to the outer wall of the filter plate, and the cleaning component is flipped and pushed by the fireproof plate.

[0020] Furthermore, the cleaning component includes a slider, a limit block, a pillar, a first fixed block and a friction plate. The slider is slidably connected to the inside of the bottom box, the limit block is fixed to the top surface of the slider, the limit block is attached to the top surface of the bottom box, the top surface of the limit block is connected to the pillar, the top of the pillar is slidably connected to the inside of the top plate, a plurality of first fixed blocks are sleeved on the outer wall of the pillar, the side wall of the first fixed block is fixed with a friction plate, and the friction plate is attached to the outer wall of the filter plate.

[0021] The present invention provides a double-layer composite self-filtering dust-proof fireproof shutter. Compared with the prior art, it has the following beneficial effects:

[0022] 1. Pull the reset component by adjusting the flipping mechanism to drive a single fireproof board to flip, and the single fireproof board is driven by the gear and tooth plate to adjust the bottom flip, and combined with the synchronization component to make the tops of multiple fireproof boards flip synchronously, the adjustment operation is stable and simple;

[0023] 2. By keeping multiple fireproof panels flipped open, the filter protection components can be used for dust filtering and ventilation to ensure ventilation effect. When closed for a long time or a fire occurs, the flipping mechanism is adjusted to release the pull on the reset component, and the reset component drives the fireproof panels to reset, thereby flipping multiple fireproof panels to close the window frame to achieve the effect of separation and fire prevention, ensuring the flexibility of switching usage modes and ensuring safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a double-layer composite self-filtering dust-proof fireproof shutter of the present invention is shown;

[0026] Figure 2 The overall inner structure schematic diagram of the present invention is shown;

[0027] Figure 3 It shows a schematic structural diagram of the overall inner side of the present invention in a state where the fireproof plate is opened;

[0028] Figure 4 A schematic diagram of the connection structure between the reset assembly and the adjustment mechanism of the present invention is shown;

[0029] Figure 5 A schematic diagram of the connection structure between the turning mechanism and the bottom box of the present invention is shown;

[0030] Figure 6 A schematic diagram of the structure of the turning mechanism of the present invention is shown;

[0031] Figure 7 A schematic diagram of the connection structure between the tooth plate and the gear of the present invention is shown;

[0032] Figure 8 A cross-sectional view of the filter assembly structure of the present invention is shown;

[0033] Fig. 9 A schematic diagram of the cleaning assembly structure of the present invention is shown;

[0034] Fig.10 The schematic diagram of the fireproof board structure of the present invention is shown;

[0035] As shown in the figure: 1. Window frame; 11. Side baffle; 2. Filter protection assembly; 21. Protection frame; 22. Filter plate; 23. Positioning block; 24. Fixing bolt; 3. Cleaning assembly; 31. Sliding block; 32. Limiting block; 33. Support column; 34. First fixing block; 35. Slip plate; 4. Bottom box; 41. Limiting plate; 42. Tooth plate; 5. Reset assembly; 51. First flip frame; 52. Pull-joint piece; 53. First spring; 54. Second fixing block; 6. , turning mechanism; 61, fixing box; 62, knob; 63, pull-over assembly; 631, rope drum; 632, pull rope; 633, ring; 64, locking column; 65, rotating shaft; 66, locking assembly; 661, plug block; 662, guide rod; 663, second spring; 664, fixing plate; 665, pull bolt; 7, fireproof plate; 71, rotating column; 72, gear; 8, synchronization assembly; 81, second turning frame; 82, connecting plate; 9, top plate. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0037] In order to solve the technical problems in the background technology, a double-layer composite self-filtering dust-proof fire shutter is provided as follows:

[0038] Combination Figure 1-Figure 10As shown, a double-layer composite self-filtering dust-proof fire shutter provided by the present invention comprises a window frame 1, wherein a filter and prevention component 2 is arranged inside the window frame 1, a top plate 9 is fixed to the top surface of the interior of the window frame 1, a bottom box 4 is fixed to the bottom surface of the interior of the window frame 1, a plurality of fireproof panels 7 are arranged between the bottom surface of the top plate 9 and the top surface of the bottom box 4, a synchronization component is connected between the side walls of the plurality of fireproof panels 7, a rotating column 71 is arranged inside the fireproof panel 7, the top end of the rotating column 71 is rotatably connected to the interior of the top plate 9, the bottom end of the rotating column 71 is rotatably connected to the interior of the bottom box 4, a gear 72 is sleeved on the bottom end of the rotating column 71, a limiting plate 41 is fixed inside the bottom box 4, and one side of the limiting plate 41 is fitted with a gear 72. A tooth plate 42 is provided, one side of the gear 72 is meshed and connected with the tooth plate 42, a reset component 5 is provided between the side wall of a fireproof board 7 and the side wall of the bottom box 4, a turning mechanism 6 is provided on the side wall of the bottom box 4, a winding structure is provided inside the turning mechanism 6, one end of the winding structure of the turning mechanism 6 is connected with the reset component 5, the turning mechanism 6 turns over a fireproof board 7 by pulling the reset component 5, the bottoms of multiple fireproof boards 7 are meshed and driven to turn synchronously through the tooth plate 42 and the gear 72, the tops of multiple fireproof boards 7 are connected through the synchronization component for synchronous turning, and multiple fireproof boards 7 are turned over so that the side walls are flush and closed inside the window frame 1;

[0039] The side wall of the fireproof board 7 is a stepped structure, and a side baffle 11 is fixed to the inner wall of the window frame 1. The side baffle 11 is flipped and fitted inside the stepped structure by the fireproof board 7, and the stepped structures of two adjacent fireproof boards 7 are fitted and closed.

[0040] The synchronization component 8 includes a second flip frame 81 and a connecting plate 82 . A plurality of second flip frames 81 are provided and are respectively fixed to the side walls of a plurality of fireproof panels 7 . One ends of the plurality of second flip frames 81 are rotatably connected to the inside of the connecting plate 82 .

[0041] According to the above structure, the following effects can be achieved:

[0042] 1. By adjusting the turning mechanism 6 to pull the reset assembly 5, a single fireproof board 7 is driven to turn over, and the single fireproof board 7 is driven to turn over and adjust the bottom through the gear 72 and the tooth plate 42, and combined with the synchronization assembly, the tops of multiple fireproof boards 7 are turned over synchronously, and the adjustment operation is stable and simple;

[0043] 2. By keeping multiple fireproof panels 7 flipped open, the filter component 2 can be used for dust filtering and ventilation to ensure ventilation effect. When the window is closed for a long time or a fire occurs, the flipping mechanism 6 is adjusted to release the pull on the reset component 5, and the reset component 5 drives the fireproof panels 7 to reset, thereby flipping multiple fireproof panels 7 to close the window frame 1 to achieve the effect of separation and fire prevention, ensuring the flexibility of switching between usage modes and ensuring the safety of use.

[0044] In this embodiment, the flipping mechanism 6 includes a fixed box 61, a knob 62, a pull-over assembly 63, a locking column 64, a rotating shaft 65 and a locking assembly 66. The fixed box 61 is fixed to the side wall of the bottom box 4. The fixed box 61 is connected with a rotating shaft 65. The knob 62 is fixed to one end of the rotating shaft 65. The other end of the rotating shaft 65 is rotatably connected to the inside of the bottom box 4. The outer wall of the rotating shaft 65 is sleeved with the pull-over assembly 63. The pull-over assembly 63 is a winding structure. The pull-over assembly 63 is connected to the outside of the fixed box 61. One end of the pull-over assembly 63 is fixedly connected to the reset assembly 5. The outer wall of the rotating shaft 65 is sleeved with a locking column 64. The outer wall of the locking column 64 is provided with a groove. The top surface of the fixed box 61 is provided with a locking assembly 66. The bottom end of the locking assembly 66 is inserted into the fixed box 61. The locking assembly 66 is inserted into the groove of the locking column 64.

[0045] By rotating the knob 62, the pull-flip assembly 63 is rolled up, thereby pulling the reset assembly 5 to adjust the flipping of the fireproof board 7, and after the rotating shaft 65 rotates, the locking assembly 66 is inserted into the groove of the locking column 64, ensuring the stability of the fireproof board 7 after flipping.

[0046] In this embodiment, the reset assembly 5 includes a first flip frame 51, a pull tab 52, a first spring 53 and a second fixed block 54, the second fixed block 54 is fixed to the side wall of the bottom box 4, the first flip frame 51 is fixed to a side wall of a fireproof board 7, the first spring 53 is connected between the bottom of one end of the first flip frame 51 and the bottom of the second fixed block 54, the bottom of one end of the first flip frame 51 is sleeved with the pull tab 52, and one side of the pull-over assembly 63 is connected to the inside of the pull tab 52;

[0047] The pulling piece 52 is pulled by the pull-flip assembly so that the first flip frame 51 drives the fireproof board 7. When the fireproof board 7 is flipped to open the window frame 1, the first flip frame 51 flips and stretches the first spring 53. When the flip-pull assembly releases the pulling of the pulling piece 52, the first spring 53 pulls the first flip frame 51 back to its original position to close the fireproof board 7.

[0048] In this embodiment, the pulling and flipping assembly 63 includes a rope drum 631, a pull rope 632 and a ring 633. The rope drum 631 is sleeved and fixed on the outer wall of the rotating shaft 65. The pull rope 632 is wound on the outer wall of the rope drum 631. One end of the pull rope 632 passes through and is connected to the outside of the fixed box 61. One end of the pull rope 632 is connected to the ring 633. The ring 633 is ringed on the inside of the pulling piece 52.

[0049] In this embodiment, the pull cord 632 is made of a high temperature fusing material;

[0050] By using the pull rope 632 made of high-temperature fusing material, the pull rope 632 can be melted by high temperature in the event of a fire, thereby releasing the pulling of the pull piece 52, allowing the first spring 53 to reset and pull the fireproof board 7 to close, thereby improving fire safety. Embodiment 2

[0051] like Figure 4-Figure 10 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0052] In order to achieve the above effect, the following structure is adopted;

[0053] The locking assembly 66 includes an insert block 661, a guide rod 662, a second spring 663, a fixed plate 664 and a pull bolt 665. The insert block 661 is fixed to the bottom surface of the fixed plate 664, the insert block 661 is inserted into the groove of the locking column 64, the guide rod 662 is inserted into the inside of the fixed plate 664, the bottom end of the guide rod 662 is fixed to the top surface of the fixed box 61, the second spring 663 is sleeved on the outer wall of the guide rod 662, the second spring 663 is connected to the bottom surface of the fixed plate 664 and the top surface of the fixed box 61, and the pull bolt 665 is connected to the top surface of the fixed plate 664.

[0054] In this embodiment, the filter protection component 2 includes a protective frame 21, a filter plate 22, a positioning block 23 and a fixing bolt 24. The bottom of the side wall of the protective frame 21 is rotatably connected to the inside of the window frame 1. The filter plate 22 is fixed inside the protective frame 21, and multiple filter plates 22 are arranged at intervals. A positioning block 23 is fixed to one side of the top surface of the protective frame 21, and a fixing bolt 24 is connected to the inside of the positioning block 23. One end of the fixing bolt 24 is connected to the inside of the window frame 1.

[0055] In this embodiment, the filter plate 22 is a three-section bending structure, and the filter plate 22 includes an upper vertical plate, an inclined plate and a lower vertical plate. The upper vertical plates and the lower vertical plates of two adjacent filter plates 22 are arranged in parallel and located on the same horizontal midline.

[0056] In this embodiment, the top surface of the bottom box 4 is slidably connected with a cleaning component 3, and multiple groups of cleaning components 3 are arranged in parallel. One side of the cleaning component 3 slides and fits the outer wall of the filter plate 22, and the cleaning component 3 is flipped and pushed by the fireproof plate 7.

[0057] In this embodiment, the cleaning assembly 3 includes a slider 31, a limit block 32, a pillar 33, a first fixed block 34 and a sliding plate 35. The slider 31 is slidably connected to the inside of the bottom box 4. The limit block 32 is fixed on the top surface of the slider 31. The limit block 32 is attached to the top surface of the bottom box 4. The top surface of the limit block 32 is connected to the pillar 33. The top of the pillar 33 is slidably connected to the inside of the top plate 9. The outer wall of the pillar 33 is sleeved with a plurality of first fixed blocks 34. The side wall of the first fixed block 34 is fixed with a sliding plate 35. The sliding plate 35 is attached to the outer wall of the filter plate 22.

[0058] When the fireproof plate 7 is flipped open, the fireproof plate 7 pushes the first fixing block 34, so that the sliding plate 35 slides on the outer wall of the filter plate 22 to clean the filtered dust, thereby ensuring the dust filtering effect.

[0059] The working principle and use process of the present invention:

[0060] Press first Figure 1-Figure 10 The knob 62 is rotated, and the shaft 65 drives the rope drum 631 to reel in the draw rope 632 of the high-temperature fusing material. The draw rope 632 pulls the ring 633, and the ring 633 pulls the pull-connecting piece 52 to move, and the first flip frame 51 drives the fireproof board 7 to flip, and the rotating column 71 rotates on the bottom box 4. The bottom end of the rotating column 71 drives the gear 72 to rotate, and the gear 72 drives the meshing toothed plate 42 to translate. The toothed plate 42 synchronously drives other gears 72, and driven by the second flip frame 81 and the connecting plate 82, all the fireproof boards 7 are flipped synchronously, and the fireproof boards 7 are flipped synchronously at the top and the bottom, which ensures the stability of the flipping of the fireproof boards 7. The flipping of the first flip frame 51 synchronously pulls the first spring 53, so that the first spring 53 is stretched, and the plug 661 is inserted into the groove of the locking column 64, so that the fireproof board 7 is flipped and locked in the open state;

[0061] When the fireproof board 7 is turned over to open the shutter, the fireproof board 7 pushes the first fixed block 34 of the adjacent cleaning assembly 3, the slider 31 slides and translates inside the bottom box 4, and the top of the support 33 translates inside the top plate 9, thereby synchronously driving the multiple sliding plates 35 to translate on the fitted filter plate 22 to scrape off the filtered dust, ensuring that dust cannot enter when the window is opened. At the same time, the filter plate 22 with a three-stage structure effectively prevents rainwater and external dust from directly entering the shutter.

[0062] Finally, when the shutters need to be closed for a long time, it is only necessary to pull the pull bolt 665 upwards to separate the plug block 661 from the locking column 64, release the lock on the reeling of the pull rope 632, and the first spring 53 pulls the first flip frame 51 to flip and reset, and each fireproof board 7 flips synchronously and closes the window frame 1. When a fire occurs, the pull rope 632 of the high-temperature fusible material is directly melted, the lock of the pull rope 632 is automatically released, and the fireproof board 7 is directly flipped and closed, thereby ensuring the function of separation and fire prevention.

[0063] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-layer composite self-filtering dust-proof fire shutter, characterized in that: The window frame comprises a filter and prevention component arranged inside the window frame, a top plate is fixed on the top surface of the window frame, a bottom box is fixed on the bottom surface of the window frame, a plurality of fireproof panels are arranged between the bottom surface of the top plate and the top surface of the bottom box, a synchronization component is connected between the side walls of the plurality of fireproof panels, a rotating column is arranged inside the fireproof panel, the top end of the rotating column is rotatably connected to the inside of the top plate, the bottom end of the rotating column is rotatably connected to the inside of the bottom box, a gear is sleeved on the bottom end of the rotating column, a limiting plate is fixed inside the bottom box, a tooth plate is fitted on one side of the limiting plate, one side of the gear is meshed with the tooth plate, a reset component is arranged between a side wall of the fireproof panel and a side wall of the bottom box, a turning mechanism is arranged on the side wall of the bottom box, a winding structure is arranged inside the turning mechanism, one end of the winding structure of the turning mechanism is connected with the reset component, the turning mechanism turns over a fireproof panel by pulling the reset component, the bottoms of the plurality of fireproof panels are driven to turn over synchronously by meshing with the gear through the tooth plate, the tops of the plurality of fireproof panels are connected by the synchronization component for turning over synchronously, and the plurality of fireproof panels turn over so that the side walls are flush and closed inside the window frame; The side wall of the fireproof board is a stepped structure, and a side baffle is fixed to the inner wall of the window frame. The side baffle is arranged inside the stepped structure by turning over the fireproof board, and the stepped structures of two adjacent fireproof boards are arranged in a closed manner. The synchronization assembly includes a second flip frame and a connecting plate, wherein a plurality of second flip frames are provided and are respectively fixed to the side walls of a plurality of fireproof panels, and one end of each of the plurality of second flip frames is rotatably connected to the inside of the connecting plate; The filter protection assembly includes a protection frame, a filter plate, a positioning block and a fixing bolt. The bottom of the side wall of the protection frame is rotatably connected to the inside of the window frame. A filter plate is fixed inside the protection frame. A plurality of filter plates are arranged at intervals. A positioning block is fixed to one side of the top surface of the protection frame. A fixing bolt is connected inside the positioning block. One end of the fixing bolt is connected to the inside of the window frame. The filter plate is a three-section bending structure, comprising an upper vertical plate, an inclined plate and a lower vertical plate, and the upper vertical plates and the lower vertical plates of two adjacent filter plates are arranged in parallel and located on the same horizontal midline; The top surface of the bottom box is slidably connected with a cleaning assembly, and multiple groups of cleaning assemblies are arranged in parallel. One side of the cleaning assembly is slidably attached to the outer wall of the filter plate, and the cleaning assembly is flipped and pushed by the fireproof plate; The cleaning assembly includes a slider, a limit block, a pillar, a first fixed block and a sliding plate, the slider is slidably connected to the inside of the bottom box, the limit block is fixed on the top surface of the slider, the limit block is attached to the top surface of the bottom box, the top surface of the limit block is connected to the pillar, the top of the pillar is slidably connected to the inside of the top plate, the outer wall of the pillar is sleeved with a plurality of first fixed blocks, the side wall of the first fixed block is fixed with a sliding plate, and the sliding plate is attached to the outer wall of the filter plate; When the fireproof plate is turned over and opened, the fireproof plate pushes the first fixing block, so that the sliding plate slides on the outer wall of the filter plate to clean the dust in the filter.

2. A double-layer composite self-filtering fireproof shutter according to claim 1, characterized in that: The adjustment mechanism includes a fixed box, a knob, a pull-and-flip assembly, a locking column, a rotating shaft and a locking assembly. The fixed box is fixed to the side wall of the bottom box, a rotating shaft is connected through the inside of the fixed box, a knob is fixed to one end of the rotating shaft, and the other end of the rotating shaft is rotatably connected to the inside of the bottom box, a pull-and-flip assembly is sleeved on the outer wall of the rotating shaft, the pull-and-flip assembly is a winding structure, the pull-and-flip assembly is connected through the outside of the fixed box, one end of the pull-and-flip assembly is fixedly connected to the reset assembly, a locking column is sleeved on the outer wall of the rotating shaft, a groove is provided on the outer wall of the locking column, a locking assembly is provided on the top surface of the fixed box, the bottom end of the locking assembly is inserted into the inside of the fixed box, and the locking assembly is inserted into the groove of the locking column.

3. A double-layer composite self-filtering dust-proof fire shutter according to claim 2, characterized in that: The reset assembly includes a first flip frame, a pull tab, a first spring and a second fixed block, the second fixed block is fixed to the side wall of the bottom box, the first flip frame is fixed to a side wall of a fireproof board, a first spring is connected between the bottom of one end of the first flip frame and the bottom of the second fixed block, a pull tab is sleeved on the bottom of one end of the first flip frame, and one side of the pull-over assembly is connected to the inside of the pull tab.

4. A double-layer composite self-filtering fireproof shutter according to claim 3, characterized in that: The pull-over assembly includes a rope drum, a pull rope and a ring. The rope drum is sleeved and fixed on the outer wall of the rotating shaft. The pull rope is wound on the outer wall of the rope drum. One end of the pull rope passes through and is connected to the outside of the fixing box. One end of the pull rope is connected to the ring, and the ring is ring-connected to the inside of the pulling piece.

5. A double-layer composite self-filtering fireproof shutter according to claim 4, characterized in that: The pull rope is made of high-temperature fusing material.

6. A double-layer composite self-filtering fireproof shutter according to claim 2, characterized in that: The locking assembly includes an insert block, a guide rod, a second spring, a fixed plate and a pull bolt. The insert block is fixed to the bottom surface of the fixed plate, the insert block is inserted into the groove of the locking column, the guide rod is inserted into the inside of the fixed plate, the bottom end of the guide rod is fixed to the top surface of the fixed box, the second spring is sleeved on the outer wall of the guide rod, the second spring is connected to the bottom surface of the fixed plate and the top surface of the fixed box, and the top surface of the fixed plate is connected to the pull bolt.

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