Fireproof door capable of preventing smoke from diffusing

Abstract

The invention discloses a fireproof door capable of preventing smoke diffusion, and particularly relates to the technical field of fireproof doors, the fireproof door comprises a mounting shell, filling grooves are formed in the left side and the right side of the upper portion and the lower portion of the mounting shell, filling assemblies are arranged on the inner surfaces of the multiple filling grooves, and the multiple filling assemblies penetrate through the mounting shell; a protection shell is arranged on the inner surface of the mounting shell, a smoke isolation device is arranged in the middle of the protection cavity, and a sliding groove is formed in the left portion of the front end of the protection shell. According to the fireproof door capable of preventing smoke from diffusing, through the smoke isolating device, the mounting shell and the protective shell can be sealed up and down and left and right, so that smoke cannot enter the other side of the fireproof door, toxic smoke is prevented from being inhaled into the human body, and therefore the situation that the human body is injured due to poisoning is avoided; and meanwhile, the filling assembly is arranged, so that the four corners of the protection assembly can be closed, smoke is blocked, and the smoke isolation effect is better.

Description

Technical Field

[0001] This invention relates to the field of fire door technology, and in particular to a fire door capable of preventing smoke from spreading. Background Technology

[0002] While existing fire doors can meet fire resistance and heat insulation requirements, their smoke isolation effect is not ideal, and it is difficult to completely block the gaps between the doors. Therefore, the sealing block is made to fit tightly against the door frame, so that the door leaf and the door frame are directly and tightly fitted, thereby improving the smoke isolation effect, blocking the spread of smoke, and ultimately protecting the human body from smoke entering the respiratory tract.

[0003] Chinese patent document CN115749559A discloses a smoke-proof fire door, including a door leaf and a door frame. The door leaf has two layers of door panels, which are supported and separated by a rectangular frame to form a sandwich layer. A strip-shaped sealing block is installed on the side of the door leaf corresponding to the sandwich layer. Multiple light rods are installed on the side of the sealing block corresponding to the frame. The frame has through holes for the light rods to pass through and extend and retract. One end of the light rod elastically presses the corresponding sealing block, and the other end is provided with a driving device. The driving device drives the light rod on the same side to move horizontally to press the corresponding sealing block, so that the sealing block presses the inside of the door frame to achieve a seal. The driving device simultaneously drives the light rod in the sandwich layer corresponding to the sealing block, so that the light rod drives the sealing block to squeeze the door frame and complete the seal. In the initial stage, the sealing block is limited to the side of the interlayer to seal the side of the interlayer without affecting the normal opening and closing of the door. When it is necessary to seal between the door leaf and the door frame, the drive device simultaneously drives the light rod to press the side sealing block, so that the sealing block is close to the door frame, thus completing the sealing between the door leaf and the door frame.

[0004] While the patented technology does have some effect on smoke prevention in actual use, the four corners of the door cannot fit tightly against the door frame, allowing smoke to escape through the gaps. This prevents the complete blocking of smoke diffusion, and the diffused smoke can damage the respiratory tract and easily lead to poisoning. Summary of the Invention

[0005] The main objective of this invention is to provide a fireproof door that can prevent smoke from spreading, effectively solving the problem of smoke inability to completely block its spread and causing injury to the human body.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A fireproof door capable of preventing smoke from spreading includes a mounting housing. Filling grooves are provided on the upper, lower, left, and right sides of the mounting housing. Filling components are provided on the inner surfaces of multiple filling grooves, and these components penetrate the mounting housing. A protective housing is provided on the inner surface of the mounting housing. A handle is provided on the left rear end of the protective housing. A protective cavity is provided inside the protective housing, and a smoke-blocking device is provided in the center of the protective cavity. The smoke-blocking device is fixedly connected to the center of the protective housing and is in close contact with the outer surface of the protective housing. The smoke-blocking device works in conjunction with the multiple filling components. A sliding groove is provided on the left front end of the protective housing, and the front part of the smoke-blocking device is slidably connected to the sliding groove.

[0008] Preferably, the smoke-proof device includes a first synchronization component, the front and rear ends of which are fixedly connected to the protective shell. The first synchronization component has first partitions at both its left and right ends. The ends of the two first partitions that are close to each other are tightly attached to the left and right sides of the outer surface of the protective shell. The left and right sides of the first synchronization component are slidably connected to the protective shell. A second synchronization component is provided at the upper left of the first synchronization component, and a third synchronization component is provided at the lower right of the first synchronization component. The third synchronization component has the same structure as the second synchronization component. The ends of the third synchronization component and the second synchronization component that are far apart from each other are provided with second partitions. The third synchronization component and the second synchronization component are slidably connected to the protective shell. The ends of the two second partitions that are close to each other are tightly attached to the upper and lower parts of the outer surface of the protective shell.

[0009] Preferably, the first synchronization component includes a sliding component and a pushing component. The front and rear ends of the sliding component are fixedly connected to the protective shell. The sliding component has driven components on both the left and right sides of its inner surface. The ends of the two driven components that are far apart from each other are fixedly connected to the first partition. The pushing component is slidably connected to the driven components. The front part of the pushing component is slidably connected to the sliding groove.

[0010] Preferably, the sliding assembly includes a sliding housing, which is fixedly connected to the protective housing and slidably connected to two driven components. Buffer grooves are provided on both the left and right sides of the upper end of the sliding assembly, and both buffer grooves are slidably connected to the driven components. Circular grooves are provided on both the upper and lower sides of the middle part of the sliding housing.

[0011] Preferably, the driven component includes a driven plate, the lower part of the driven plate near the pushing component is inclined towards the pushing component, the driven plate is fixedly connected to the first partition plate, the driven plate passes through the protective housing, the driven plate is slidably connected to the sliding housing, a driven block is provided on the upper part of the driven plate near the pushing component, the driven block is slidably connected to the buffer groove, and a first compression spring is provided on the end of the driven block away from the pushing component.

[0012] Preferably, the pushing assembly includes an L-shaped rod that is slidably connected to a sliding groove. A driven post is located at the right end of the L-shaped rod, and a sliding post is located in the middle of the driven post. A linkage block is located on the outer surface of the sliding post. Driven grooves are located on both the front and rear sides of the upper part of the linkage block, and both driven grooves are slidably connected to the sliding post. A fixed post is located on one side of the linkage block, and the front and rear ends of the fixed post are fixedly connected to the protective housing. A linkage post is located on the other side of the linkage block, and a conical block is located at the upper end of the linkage post. The conical block is diamond-shaped and is slidably connected to two driven plates.

[0013] Preferably, the second synchronization component includes a synchronization housing, a driving column, a synchronization plate, and two connecting plates. The lower end of the synchronization housing is fixedly connected to the sliding housing. A driving component is provided at the lower part of the synchronization housing, and the driving component passes through the synchronization housing. An active component is provided at the upper end of the driving component. A fixed plate is provided at the end of the active component away from the sliding component. The lower end of the fixed plate is fixedly connected to the driven plate. The active component is slidably connected to the synchronization plate. The synchronization plate is fixedly connected to the second partition plate and slidably connected to the protective housing. The lower end of the synchronization plate is inclined, and a through groove is provided at the lower part of the synchronization plate. The driving column is slidably connected to the through groove and fixedly connected to the synchronization housing. Both connecting plates are fixedly connected to the synchronization plate. A second compression spring is provided at the lower end of each of the two connecting plates. The lower ends of the two second compression springs are fixedly connected to the upper end of the synchronization housing.

[0014] Preferably, the driving component includes a trapezoidal block, the upper surface of which is an inclined surface, the upper end of which is slidably connected to the active component, a moving column is provided at the middle of the lower end of the trapezoidal block, the moving column is slidably connected to the synchronization housing, and a third compression spring is provided on the upper part of the outer surface of the moving column.

[0015] Preferably, the active component includes an active housing and a mounting post. The active housing is slidably connected to the synchronization housing, the active housing is fixedly connected to the fixing plate, the mounting post is fixedly connected to the active housing, and the outer surface of the mounting post is provided with a rolling wheel, which is slidably connected to the synchronization plate.

[0016] Preferably, the filling assembly includes a receiving plate, a second movable column, and a connecting rod. The receiving plate is fixedly connected to the mounting housing. A fourth compression spring is provided at the upper end of the receiving plate, and the upper end of the fourth compression spring is fixedly connected to the mounting housing. A first movable column is provided at the lower end of the receiving plate, and a filling block is provided at the lower end of the first movable column. The connecting rod is movably connected to the mounting housing and movably connected to the second movable column and the first movable column. The second movable column passes through the mounting housing. The filling block is used in conjunction with the smoke isolation device.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In this invention, the smoke-blocking device can block the gap between the mounting housing and the protective housing, preventing smoke from being inhaled into the respiratory tract and causing poisoning. When there is smoke, pulling the L-shaped rod will cause the sliding column to slide on the inner surface of the driven groove, thereby causing the linkage column and the conical block to move up and down. Since the conical block is diamond-shaped, it will cause the driven plates on both sides to move in opposite directions, thereby driving the first partitions on both sides to move until the first partitions on both sides are in close contact with the protective housing, thereby filling the gaps on the left and right sides. When the driven plates move to both sides, the fixed plate will move, thereby causing the active component to move. When the rolling wheel moves, since the lower surface of the synchronous plate is inclined, the synchronous plate will move upward, thereby causing the second partitions on the upper and lower sides to move, thereby causing the two second partitions to be in close contact with the outer surface of the protective housing, thus filling the gaps in all four directions, thereby blocking the smoke and preventing the smoke from being inhaled into the human body and causing harm.

[0019] 2. In this invention, the filling components can seal the four corners of the protective shell, improving the smoke isolation effect and ensuring that all positions are filled, thus preventing smoke from entering the other side of the fire door. When the second synchronization component works, it will cause the second partitions on the upper and lower sides to move. When the second partitions on the upper and lower sides contact the second movable column, the second movable column moves upward, causing the left side of the connecting rod to tilt downward, which in turn causes the first movable column to move downward, ultimately causing the filling block to move downward, thus filling the four corners of the protective shell with the filling block, thereby blocking the smoke and improving the smoke isolation effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the rear view structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the smoke isolation device of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the first synchronization component of the present invention;

[0025] Figure 6 This is a schematic diagram of the sliding component structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the driven component and the actuating component of the present invention;

[0027] Figure 8 For the present invention Figure 5 Enlarged view of point A in the middle;

[0028] Figure 9 This is a schematic diagram of the driving component and the active component of the present invention;

[0029] Figure 10 This is a schematic diagram of the filling component structure of the present invention.

[0030] In the diagram: 1. Mounting housing; 2. Protective housing; 3. Handle; 4. Filling groove; 5. Filling assembly; 6. Protective cavity; 7. Smoke isolation device; 8. Sliding groove; 70. First synchronization assembly; 71. First partition; 72. Second synchronization assembly; 73. Second partition; 74. Third synchronization assembly; 700. Sliding assembly; 701. Driven assembly; 703. Pushing assembly; 7000. Sliding housing; 7001. Buffer groove; 7002. Circular groove; 7010. Driven plate; 7011. Driven block; 7012. First compression spring; 7030. L-shaped rod; 7031. Driven column; 7032. Sliding column; 7033. Driven groove; 7034, Fixed column; 7035, Linkage column; 7036, Conical block; 7037, Linkage block; 720, Synchronization housing; 721, Drive assembly; 722, Active assembly; 723, Fixed plate; 724, Drive column; 725, Synchronization plate; 726, Through slot; 727, Connecting plate; 728, Second compression spring; 7210, Trapezoidal block; 7211, Moving column; 7212, Third compression spring; 7220, Active housing; 7221, Rolling wheel; 7222, Mounting column; 50, Receiving plate; 51, Fourth compression spring; 52, First movable column; 53, Connecting rod; 54, Second movable column; 55, Filler block. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] Example 1

[0033] like Figure 1-9 As shown, a fire door capable of preventing smoke from spreading includes a mounting housing 1. The mounting housing 1 has filling grooves 4 on its upper, lower, left, and right sides. Filling components 5 are provided on the inner surfaces of multiple filling grooves 4, and these components 5 penetrate the mounting housing 1. A protective housing 2 is provided on the inner surface of the mounting housing 1. A handle 3 is provided on the left rear end of the protective housing 2. Figure 2As shown, the protective housing 2 has a protective cavity 6 inside, and a smoke-blocking device 7 is located in the middle of the protective cavity 6. The smoke-blocking device 7 is fixedly connected to the protective housing 2 and is in close contact with the outer surface of the protective housing 2. The smoke-blocking device 7 is used in conjunction with multiple filling components 5, such as... Figure 3 As shown, a sliding groove 8 is provided on the left front end of the protective housing 2, and the front part of the smoke isolation device 7 is slidably connected to the sliding groove 8;

[0034] The smoke-blocking device 7 can fill the gap between the mounting housing 1 and the protective housing 2, thereby blocking the smoke and preventing the smoke from entering the other side of the fire door. While the smoke-blocking device 7 is working, it can also be used in conjunction with multiple filling components 5 to fill the four corners of the protective housing 2, thereby improving the smoke-blocking effect.

[0035] like Figure 4 As shown, the smoke isolation device 7 includes a first synchronization component 70. The front and rear ends of the first synchronization component 70 are fixedly connected to the protective housing 2. The left and right ends of the first synchronization component 70 are provided with first partitions 71. The ends of the two first partitions 71 that are close to each other are tightly attached to the left and right sides of the outer surface of the protective housing 2. The left and right sides of the first synchronization component 70 are slidably connected to the protective housing 2. The upper left part of the first synchronization component 70 is provided with a second synchronization component 72. The lower right part of the first synchronization component 70 is provided with a third synchronization component 74. The third synchronization component 74 has the same structure as the second synchronization component 72. The ends of the third synchronization component 74 and the second synchronization component 72 that are far apart from each other are provided with second partitions 73. The third synchronization component 74 and the second synchronization component 72 are slidably connected to the protective housing 2. The ends of the two second partitions 73 that are close to each other are tightly attached to the upper and lower parts of the outer surface of the protective housing 2. When the first synchronization component 70 moves, the second synchronization component 72 and the third synchronization component 74 will move, thereby moving the second partitions 73 on the upper and lower sides.

[0036] Specifically, such as Figure 5 The first synchronization component 70 includes a sliding component 700 and a pushing component 703. The front and rear ends of the sliding component 700 are fixedly connected to the protective shell 2. The left and right sides of the inner surface of the sliding component 700 are provided with driven components 701. The ends of the two driven components 701 that are far apart from each other are fixedly connected to the first partition 71. The pushing component 703 is slidably connected to the driven components 701. The front part of the pushing component 703 is slidably connected to the sliding groove 8.

[0037] When smoke needs to be blocked, the driven component 701 can be moved by the push component 703. When the two driven components 701 move in opposite directions, the first partitions 71 on both sides will be pressed against the left and right sides of the protective housing 2. When the two driven components 701 move, the two second synchronization components 72 will move, so that the second partitions 73 on the upper and lower sides will be pressed against the upper and lower sides of the protective housing 2, thereby filling in all four directions and blocking the smoke.

[0038] For details, please refer to Figure 6 The sliding assembly 700 includes a sliding housing 7000, which is fixedly connected to the protective housing 2. The sliding housing 7000 is slidably connected to two driven assemblies 701. Buffer grooves 7001 are provided on both the left and right sides of the upper end of the sliding assembly 700, and both buffer grooves 7001 are slidably connected to the driven assemblies 701. Circular grooves 7002 are provided on both the upper and lower sides of the middle part of the sliding housing 7000.

[0039] When the push component 703 is working, it will cause the two driven components 701 to move to both sides. At this time, the two driven components 701 will move on the inner surface of the buffer groove 7001.

[0040] like Figure 7 As shown, the driven component 701 includes a driven plate 7010. The lower part of the driven plate 7010 near the pushing component 703 is inclined towards the pushing component 703. The driven plate 7010 is fixedly connected to the first partition 71. The driven plate 7010 passes through the protective housing 2. The driven plate 7010 is slidably connected to the sliding housing 7000. A driven block 7011 is provided on the upper end of the driven plate 7010 near the pushing component 703. The driven block 7011 is slidably connected to the buffer groove 7001. A first compression spring 7012 is provided on the end of the driven block 7011 away from the pushing component 703.

[0041] When the push assembly 703 is working, the two driven blocks 7011 will slide on the inner surface of the buffer groove 7001, and at the same time, the two first compression springs 7012 will be compressed.

[0042] The pushing component 703 includes an L-shaped rod 7030, which is slidably connected to the sliding groove 8. The right end of the L-shaped rod 7030 is provided with a driven post 7031, and the middle of the driven post 7031 is provided with a sliding post 7032. The outer surface of the sliding post 7032 is provided with a linkage block 7037. Both the front and rear sides of the upper part of the linkage block 7037 are provided with driven grooves 7033, and both driven grooves 7033 are slidably connected to the sliding post 7032. One side of the linkage block 7037 is provided with a fixed post 7034, and the front and rear ends of the fixed post 7034 are fixedly connected to the protective shell 2. The other side of the linkage block 7037 is provided with a linkage post 7035, and the upper end of the linkage post 7035 is provided with a conical block 7036. The conical block 7036 is diamond-shaped and is slidably connected to two driven plates 7010.

[0043] The cone block 7036 is diamond-shaped with inclined edges. When the linkage column 7035 moves, the cone block 7036 will also move. This causes the driven plates 7010 on both sides to slide on the inner surface of the sliding housing 7000, thereby driving the first partition plates 71 on both sides to move.

[0044] Specifically, such as Figure 8 The second synchronization component 72 includes a synchronization housing 720, a driving column 724, a synchronization plate 725, and two connecting plates 727. The lower end of the synchronization housing 720 is fixedly connected to the sliding housing 7000. A driving component 721 is provided at the lower part of the synchronization housing 720, and the driving component 721 passes through the synchronization housing 720. An active component 722 is provided at the upper end of the driving component 721. A fixed plate 723 is provided at the end of the active component 722 away from the sliding component 700. The lower end of the fixed plate 723 is fixedly connected to the driven plate 7010. The active component 722 and the synchronization... The synchronous plate 725 is slidably connected, the synchronous plate 725 is fixedly connected to the second partition plate 73, the synchronous plate 725 is slidably connected to the protective shell 2, the lower end of the synchronous plate 725 is inclined, the lower part of the synchronous plate 725 is provided with a through groove 726, the driving column 724 is slidably connected to the through groove 726, the driving column 724 is fixedly connected to the synchronous shell 720, both connecting plates 727 are fixedly connected to the synchronous plate 725, both connecting plates 727 are provided with a second compression spring 728 at the lower end, the lower ends of the two second compression springs 728 are fixedly connected to the upper end of the synchronous shell 720;

[0045] When the driven plate 7010 moves, it will drive the active component 722 to move, thereby causing the driving component 721 and the synchronization plate 725 to move. Since the lower end of the synchronization plate 725 is inclined, the synchronization plate 725 will move up and down under the action of the driving component 721 and the active component 722.

[0046] For details, please refer to Figure 9The drive component 721 includes a trapezoidal block 7210, the upper surface of which is an inclined surface. The upper end of the trapezoidal block 7210 is slidably connected to the active component 722. A moving column 7211 is provided in the middle of the lower end of the trapezoidal block 7210. The moving column 7211 is slidably connected to the synchronization housing 720. A third compression spring 7212 is provided on the upper part of the outer surface of the moving column 7211.

[0047] The active component 722 includes an active housing 7220 and a mounting post 7222. The active housing 7220 is slidably connected to the synchronization housing 720 and is fixedly connected to the fixing plate 723. The mounting post 7222 is fixedly connected to the active housing 7222. A rolling wheel 7221 is provided on the outer surface of the mounting post 7222 and is slidably connected to the synchronization plate 725.

[0048] When the driven plate 7010 moves, it causes the fixed plate 723 to move, which in turn causes the active housing 7220 to move, which in turn drives the rolling wheel 7221 to move. This causes the rolling wheel 7221 to move on the upper surface of the trapezoidal block 7210. Since the upper surface of the trapezoidal block 7210 is inclined, the movement of the rolling wheel 7221 causes the trapezoidal block 7210 to move up and down. The third compression spring 7212 extends and retracts, and the movement of the rolling wheel 7221 also causes the synchronous plate 725 to move up and down.

[0049] The specific implementation method is as follows: When there is smoke, the L-shaped rod 7030 is pulled, causing it to slide on the inner surface of the sliding groove 8. This moves the driven column 7031, causing the linkage block 7037 to rotate. The right side of the linkage block 7037 moves upward, causing the linkage column 7035 and the conical block 7036 to move upward. Since the conical block 7036 is diamond-shaped, its outer surface is also diamond-shaped. Therefore, when the conical block 7036 moves, the driven plates 7010 on both sides slide on the inner surface of the sliding housing 7000, while the driven block 7011 slides on the inner surface of the buffer groove 7001. The first compression spring 7012 is compressed, causing the first partition plates 71 on both sides to move. Until it is tightly against the outer surface of the protective housing 2, the left and right sides between the protective housing 2 and the mounting housing 1 are sealed. Then, as the two driven plates 7010 move, the fixed plate 723 will move, thereby causing the active housing 7220 to move, which will drive the rolling wheel 7221 to move. This will cause the rolling wheel 7221 to move to the left side of the trapezoidal block 7210. Since the upper surface of the trapezoidal block 7210 is inclined, the rolling wheel 7221 will move the trapezoidal block 7210 upward while the moving column 7211 also moves upward. The moving column 7211 extends, and at this time the synchronous plate 725 moves upward, so that the second partitions 73 on the upper and lower sides are also tightly against the outer surface of the protective housing 2, sealing the four directions of up, down, left and right, so as to improve the smoke isolation effect.

[0050] Example 2

[0051] This embodiment further improves the filling component 5 based on Embodiment 1, such as... Figure 10 As shown, when the protective shell 2 is sealed on all four sides (top, bottom, left, and right), the four corners of the protective shell 2 are not sealed. Therefore, sealing the four corners will improve the smoke isolation effect and completely block the smoke.

[0052] The filling component 5 includes a receiving plate 50, a second movable column 54, and a connecting rod 53. The receiving plate 50 is fixedly connected to the mounting housing 1. A fourth compression spring 51 is provided at the upper end of the receiving plate 50, and the upper end of the fourth compression spring 51 is fixedly connected to the mounting housing 1. A first movable column 52 is provided at the lower end of the receiving plate 50, and a filling block 55 is provided at the lower end of the first movable column 52. The connecting rod 53 is movably connected to the mounting housing 1, and the connecting rod 53 is movably connected to the second movable column 54 and the first movable column 52. The second movable column 54 passes through the mounting housing 1. The filling block 55 is used in conjunction with the smoke isolation device 7.

[0053] When the second partitions 73 on both sides move to the sides, they will encounter the second movable columns 54 on both the upper and lower sides, causing the connecting rod 53 to tilt. This will cause the first movable column 52 to move towards the protective shell 2, thereby causing the filling block 55 to move towards the protective shell 2, thus sealing the four corners of the protective shell 2 and improving the smoke isolation effect.

[0054] The specific implementation method is as follows: When the second synchronization component 72 moves, the second partitions 73 on the upper and lower sides will move to the sides. When the second partitions 73 on the upper and lower sides contact the second movable column 54, the second movable column 54 will move away from the protective housing 2, thereby tilting the connecting rod 53. At the same time, the first movable column 52 will move towards the protective housing 2, which will drive the filling block 55 to move, so that multiple filling blocks 55 will seal the four corners of the protective housing 2, thereby blocking the smoke and preventing the smoke from entering the other side of the fire door.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A fireproof door capable of preventing smoke from spreading, comprising a mounting housing (1), characterized in that: The mounting housing (1) has filling grooves (4) on both the upper and lower parts and the left and right sides. The inner surfaces of the multiple filling grooves (4) are provided with filling components (5). The multiple filling components (5) penetrate the mounting housing (1). The inner surface of the mounting housing (1) is provided with a protective housing (2). The left rear end of the protective housing (2) is provided with a handle (3). The protective housing (2) is provided with a protective cavity (6). The protective cavity (6) is provided with a smoke isolation device (7) in the middle. The middle part of the smoke isolation device (7) is fixedly connected to the protective housing (2). The smoke isolation device (7) is close to the outer surface of the protective housing (2). The smoke isolation device (7) is used in conjunction with the multiple filling components (5). The left front end of the protective housing (2) is provided with a sliding groove (8). The front part of the smoke isolation device (7) is slidably connected to the sliding groove (8).

2. A fireproof door capable of preventing smoke from spreading according to claim 1, characterized in that: The smoke-proof device (7) includes a first synchronization component (70), the front and rear ends of which are fixedly connected to the protective shell (2). The first synchronization component (70) has a first partition (71) at both the left and right ends. The two first partitions (71) are close to each other and are attached to the left and right sides of the outer surface of the protective shell (2). The left and right sides of the first synchronization component (70) are slidably connected to the protective shell (2). The upper left part of the first synchronization component (70) has a second synchronization component (72), and the lower right part of the first synchronization component (70) has a third synchronization component (74). The third synchronization component (74) has the same structure as the second synchronization component (72). The ends of the third synchronization component (74) and the second synchronization component (72) that are far apart from each other are provided with a second partition (73). The third synchronization component (74) and the second synchronization component (72) are slidably connected to the protective shell (2). The ends of the two second partitions (73) that are close to each other are attached to the upper and lower parts of the outer surface of the protective shell (2).

3. A fireproof door capable of preventing smoke from spreading according to claim 2, characterized in that: The first synchronization component (70) includes a sliding component (700) and a pushing component (703). The front and rear ends of the sliding component (700) are fixedly connected to the protective shell (2). The left and right sides of the inner surface of the sliding component (700) are provided with driven components (701). The ends of the two driven components (701) that are far apart from each other are fixedly connected to the first partition (71). The pushing component (703) is slidably connected to the driven components (701). The front part of the pushing component (703) is slidably connected to the sliding groove (8).

4. A fireproof door capable of preventing smoke from spreading according to claim 3, characterized in that: The sliding assembly (700) includes a sliding housing (7000), which is fixedly connected to the protective housing (2). The sliding housing (7000) is slidably connected to two driven assemblies (701). Buffer grooves (7001) are provided on both the left and right sides of the upper end of the sliding assembly (700), and both buffer grooves (7001) are slidably connected to the driven assemblies (701). Circular grooves (7002) are provided on both the upper and lower sides of the middle part of the sliding housing (7000).

5. A fireproof door capable of preventing smoke from spreading according to claim 3, characterized in that: The driven component (701) includes a driven plate (7010). The lower part of the driven plate (7010) near the push component (703) is inclined towards the push component (703). The driven plate (7010) is fixedly connected to the first partition (71). The driven plate (7010) passes through the protective housing (2). The driven plate (7010) is slidably connected to the sliding housing (7000). A driven block (7011) is provided on the upper end of the driven plate (7010) near the push component (703). The driven block (7011) is slidably connected to the buffer groove (7001). A first compression spring (7012) is provided on the end of the driven block (7011) away from the push component (703).

6. A fireproof door capable of preventing smoke from spreading according to claim 3, characterized in that: The pushing assembly (703) includes an L-shaped rod (7030) that is slidably connected to a sliding groove (8). A driven post (7031) is provided at the right end of the L-shaped rod (7030). A sliding post (7032) is provided in the middle of the driven post (7031). A linkage block (7037) is provided on the outer surface of the sliding post (7032). A driven groove (7033) is provided on both the front and rear sides of the upper part of the linkage block (7037). The two driven grooves (7033)... All are slidably connected to the sliding column (7032). The linkage block (7037) has a fixed column (7034) on one side. The front and rear ends of the fixed column (7034) are fixedly connected to the protective shell (2). The linkage block (7037) has a linkage column (7035) on the other side. The upper end of the linkage column (7035) has a conical block (7036). The conical block (7036) is diamond-shaped. The conical block (7036) is slidably connected to two driven plates (7010).

7. A fire door capable of preventing smoke from spreading according to claim 2, characterized in that: The second synchronization component (72) includes a synchronization housing (720), a driving column (724), a synchronization plate (725), and two connecting plates (727). The lower end of the synchronization housing (720) is fixedly connected to the sliding housing (7000). A driving component (721) is provided at the lower part of the synchronization housing (720), and the driving component (721) passes through the synchronization housing (720). An active component (722) is provided at the upper end of the driving component (721). A fixing plate (723) is provided at the end of the active component (722) away from the sliding component (700). The lower end of the fixing plate (723) is fixedly connected to the driven plate (7010). The active component (722) and the synchronization plate... (725) Sliding connection, the synchronization plate (725) is fixedly connected to the second partition plate (73), the synchronization plate (725) is slidably connected to the protective shell (2), the lower end of the synchronization plate (725) is inclined, the lower part of the synchronization plate (725) is provided with a through groove (726), the driving column (724) is slidably connected to the through groove (726), the driving column (724) is fixedly connected to the synchronization shell (720), both connecting plates (727) are fixedly connected to the synchronization plate (725), both connecting plates (727) are provided with a second compression spring (728) at the lower end, and the lower ends of the two second compression springs (728) are fixedly connected to the upper end of the synchronization shell (720).

8. A fireproof door capable of preventing smoke from spreading according to claim 7, characterized in that: The driving component (721) includes a trapezoidal block (7210), the upper surface of which is an inclined surface. The upper end of the trapezoidal block (7210) is slidably connected to the active component (722). A moving column (7211) is provided in the middle of the lower end of the trapezoidal block (7210). The moving column (7211) is slidably connected to the synchronous housing (720). A third compression spring (7212) is provided on the upper part of the outer surface of the moving column (7211).

9. A fireproof door capable of preventing smoke from spreading according to claim 7, characterized in that: The active component (722) includes an active housing (7220) and a mounting post (7222). The active housing (7220) is slidably connected to the synchronization housing (720). The active housing (7220) is fixedly connected to the fixing plate (723). The mounting post (7222) is fixedly connected to the active housing (7220). The outer surface of the mounting post (7222) is provided with a rolling wheel (7221). The rolling wheel (7221) is slidably connected to the synchronization plate (725).

10. A fireproof door capable of preventing smoke from spreading according to claim 1, characterized in that: The filling component (5) includes a receiving plate (50), a second movable column (54), and a connecting rod (53). The receiving plate (50) is fixedly connected to the mounting housing (1). A fourth compression spring (51) is provided at the upper end of the receiving plate (50), and the upper end of the fourth compression spring (51) is fixedly connected to the mounting housing (1). A first movable column (52) is provided at the lower end of the receiving plate (50), and a filling block (55) is provided at the lower end of the first movable column (52). The connecting rod (53) is movably connected to the mounting housing (1), and the connecting rod (53) is movably connected to the second movable column (54) and the first movable column (52). The second movable column (54) passes through the mounting housing (1). The filling block (55) is used in conjunction with the smoke isolation device (7).

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