Intelligent control push-pull fire door for offshore wind farm

Abstract

The utility model discloses a kind of intelligent control push-pull type fire door for offshore wind farm, including electric cabinet, door drive assembly, door frame and fire door leaf and four sides dynamic sealing system, upper side seal is driven by electromagnet device magnetic attraction plate control upper side sealing strip clutch, retract to avoid friction when opening door;Lower side seal is lifted lower side sealing strip by screw rod connecting rod mechanism control lifting drive device, form the ladder seal of main / sub sealing strip;Left and right side seal realizes static sealing by door leaf extrusion sealing strip. Rotatable cover plate mechanism is controlled by servo motor drive gear set, cover ground groove horizontally when opening door, guide rainwater to drain groove when closing door. Electric cabinet cooperates with limit sensor, intelligent lock and patrol defense robot communication, realize unmanned opening and closing. Solve push-pull door sealing strip wear, rain penetration and robot traffic obstacle problem.

Description

Technical Field

[0001] This utility model relates to the field of building fire protection equipment technology, specifically to a smart push-pull fire door for offshore wind farms. Background Technology

[0002] Offshore wind farm cabins must meet requirements for fire resistance, weather protection, and corrosion resistance. Due to the harsh environment and sparse population at offshore wind farms, robots are increasingly being used for patrols. This necessitates that the cabin's fire doors not only provide fire protection, weather protection, and corrosion resistance, but also integrate with the robots. To facilitate robot access, fire doors are typically designed as sliding doors, and the bottom sill needs to be removed. This makes the sealing of the fire doors a significant challenge, as detailed below:

[0003] 1. When sliding fire doors are opened and closed, the sealing strip comes into contact with the fire door or door frame through friction. This not only affects the smoothness of the opening and closing of the fire door, but also causes some damage to the sealing strip, thus affecting the sealing effect.

[0004] 2. Offshore wind farms have harsh environments with a lot of rain, and water droplets easily condense on the door panels and flow down the door. Over time, this can easily corrode the lower sealing strip and affect the sealing effect. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the existing technology and provide a smart push-pull fire door for offshore wind farms.

[0006] To achieve the above objectives, the technical solution of this utility model is to design an intelligent push-pull fireproof door for offshore wind farms, including an electrical control box, a door drive assembly, a door frame, a fireproof door leaf, a left sealing assembly, a right sealing assembly, an upper sealing assembly, and a lower sealing assembly. The left, right, upper, and lower sealing assemblies are located on the four sides of the fireproof door leaf. The door drive assembly includes a drive motor, a track, a roller, a drive gear, a driven gear, and a toothed belt. The drive motor, track, drive gear, driven gear, and toothed belt are located above the door frame. The roller is connected to the top of the fireproof door leaf and is mounted on the toothed belt. The toothed belt meshes with the drive gear and driven gear, which are located at both ends of the track. The drive motor is driven by the drive gear and electrically connected to the electrical control box. The door frame includes a door opening on the left and a door leaf compartment on the right. The door leaf compartment has a door leaf sliding entrance on the left side that is adapted to the thickness of the fireproof door leaf.

[0007] Specifically, the lower sealing assembly is located below the ground under the fire door leaf, and includes a U-shaped sealing housing and a lower sealing strip, a support plate, and a lifting drive device disposed within the sealing housing. The lower sealing strip is mounted on the support plate, the lifting drive device is connected to the support plate, and the lifting drive device is mounted at the bottom of the sealing housing.

[0008] Furthermore, horizontal baffles are symmetrically arranged on both sides of the opening at the upper end of the sealing housing. These horizontal baffles are bolted to the upper end of the sealing housing, and the spacing between them is adapted to the thickness of the fireproof door leaf. The lower sealing strip includes a lower main sealing strip and a lower secondary sealing strip. The lower secondary sealing strip is located below the horizontal baffles, and the lower main sealing strip is located between the lower secondary sealing strips. When the door is opened, the lifting drive device descends, separating the lower sealing strip from the fireproof door leaf to prevent long-term friction between the fireproof door leaf and the lower sealing strip during movement, which could cause sealing failure. When the door is closed, the lifting drive device rises, ensuring a tight seal between the lower sealing strip and the fireproof door leaf, thus achieving a sealing effect.

[0009] Preferably, the lifting drive device includes a dual-head motor and bearing housings located at the bottom of the sealed housing. Each of the two drive ends of the dual-head motor is connected to a lead screw, with bearings fitted at both ends of the lead screws. The bearings are mounted on the bearing housings, and two mating nuts are fitted on the lead screws. The two sides of the nuts are connected to one end of a connecting rod via a first shaft, and the other end of the connecting rod is fitted onto a second shaft located on both sides of a connecting plate. The connecting plate is connected to a support plate. By controlling the two sets of lead screw systems with the dual-head motor, the connecting plate can be moved vertically, thereby driving the lower sealing strip to move vertically. This structure provides smooth vertical movement and self-locking, improving overall sealing performance.

[0010] Furthermore, it also includes a rotatable cover mechanism, which includes a servo motor mounted on one end of the sealing housing. The servo motor is driven and connected to a cover gear, which meshes with an internal cover gear. The internal cover gear is arc-shaped, and one end of the internal cover gear is connected to one end of the cover. A guide roller is provided on the sealing housing, and the internal cover gear slides between the guide roller and the cover gear. Both the cover and the sealing housing have hinge holes at their upper ends, and a hinge shaft is fitted inside the hinge holes. The width of the cover is greater than the opening width of the sealing housing, and a drainage groove is provided on one side of the sealing housing below the cover. The cover is preferably made of thin stainless steel plate to meet the hardness requirements for the patrol robot to pass through, and to ensure that there are no large steps in the horizontal position that would affect the passage of the patrol robot. The rotatable cover mechanism can rotate to a horizontal position when the fire door is fully opened, thereby covering the groove opened below for the placement of the lower sealing component, to help the patrol robot pass through, and also to prevent dust and other debris from falling into the lower sealing component. After the fireproof door is closed, the rotatable cover can be rotated to a state where it is completely flush with the fireproof door. This allows water to be diverted from the cover to the drainage channel below when condensation or rainwater appears on the fireproof door, preventing rainwater from corroding the sealing components below. The guide rollers ensure more stable rotation of the gears inside the cover when they mesh with each other.

[0011] Specifically, the right-side sealing assembly includes a right-side sealing strip, a first vertical baffle on the right side of the fireproof door leaf, and a second vertical baffle on the left side of the door leaf compartment. The right-side sealing strip is installed on one side of the first vertical baffle. The right-side sealing relies entirely on the squeezing force generated when the door is closed, which causes the right-side sealing strip, the first vertical baffle on the right side of the fireproof door leaf, and the second vertical baffle on the left side of the door leaf compartment to fit tightly together, thereby achieving a seal.

[0012] Specifically, the left-side sealing assembly includes a left-side sealing strip disposed on the left side of the fire door leaf. The left-side sealing relies entirely on the squeezing force generated when the door is closed, which causes the left-side sealing strip on the left side of the fire door leaf to fit tightly against the left side of the door frame, thereby achieving a seal.

[0013] Specifically, the upper sealing assembly includes an upper sealing strip located in the upper sealing grooves on both sides of the upper end of the door frame. An electromagnet is installed in each upper sealing groove. The upper sealing strip is mounted on a magnetic suction plate, and an elastic element is positioned between the magnetic suction plate and the electromagnet. An upper baffle is provided at the opening of the upper sealing groove. The electromagnet is electrically connected to the control box. When the door is opened, the electromagnet activates and attracts the magnetic suction plate, thereby separating the upper sealing strip from the fireproof door leaf. This prevents the fireproof door leaf from rubbing against the upper sealing strip for extended periods during movement, which could cause sealing failure. When the door is closed, the electromagnet deactivates, and the elastic element pushes the magnetic suction plate towards the fireproof door leaf, ensuring a tight seal between the upper sealing strip and the fireproof door leaf.

[0014] Furthermore, it also includes limit sensors located on both sides above the door frame and electrically connected to the electrical control box. The limit sensors are used to detect whether the opening and closing actions have been executed correctly, thereby ensuring that the closing or opening command is safely completed. If any abnormality is detected, it will also be reported back to the robot platform.

[0015] Furthermore, it also includes a smart lock, which is installed on the left side of the door frame and the fire door leaf, and is electrically connected to the electrical control box. The smart lock can be linked with the patrol robot to control the opening and closing of the entire fire door. The smart lock is preferably made of 316L stainless steel, and can be manually unlocked when the system loses power.

[0016] Preferably, the sealing strips described above are all D-type fire-resistant expansion sealing strips. The selection of all components and equipment is primarily based on fire resistance.

[0017] The advantages and beneficial effects of this utility model are as follows:

[0018] 1. The fireproof door's four-sided sealing structure adapts to strong winds and rain at sea, while the lower lifting drive and upper magnetic suction device prevent the door from moving and rubbing against the sealing strip.

[0019] 2. The lower sealing assembly is installed below ground level and the sealing is controlled by a lifting drive device, which does not affect the passage of the patrol robot and can provide an effective seal after the door is closed;

[0020] 3. The various agencies cooperate with each other and work together with the patrol robots to achieve unmanned automatic control. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the fire door structure of this utility model;

[0022] Figure 2 This is a top view of the left-side sealing assembly of the fire door of this utility model;

[0023] Figure 3 This is a top view of the right-side sealing assembly of the fire door of this utility model;

[0024] Figure 4 This is a left view of the upper sealing assembly of the fire door of this utility model;

[0025] Figure 5 yes Figure 4 Enlarged view of point A of the lower sealing assembly

[0026] Figure 6 This is a schematic diagram of the overall structure of the fire door lower sealing assembly of this utility model;

[0027] Figure 7This is an exploded view of the lower sealing assembly of the fire door of this utility model;

[0028] Figure 8 This is a cross-sectional view of the lower sealing assembly of the fire door of this utility model;

[0029] Figure 9 This is a schematic diagram of the rotatable cover plate mechanism of this utility model.

[0030] In the diagram: 1. Electrical control box; 2. Door drive assembly; 21. Drive motor; 22. Track; 23. Hanging wheel; 24. Drive gear; 25. Driven gear; 26. Toothed belt; 3. Door frame; 31. Door opening; 32. Door leaf compartment; 33. Door leaf sliding entrance; 4. Fireproof door leaf; 5. Left side sealing assembly; 51. Left side sealing strip; 6. Right side sealing assembly; 61. Right side sealing strip; 62. First vertical baffle; 63. Second vertical baffle; 7. Upper side sealing assembly; 71. Upper side sealing strip; 72. Upper sealing groove; 73. Electromagnet device; 74. Magnetic suction plate; 75. Elastic element; 76. Upper baffle; 8. Lower side sealing assembly Components; 81. Sealing housing; 82. Lower sealing strip; 821. Lower main sealing strip; 822. Lower secondary sealing strip; 83. Support plate; 84. Lifting drive device; 841. Dual-head motor; 842. Bearing seat; 843. Lead screw; 844. Bearing; 845. Nut; 846. First shaft; 847. Connecting rod; 848. Second shaft; 849. Connecting plate; 85. Horizontal baffle; 86. Bolt; 91. Servo motor; 92. Cover plate gear; 93. Cover plate internal gear; 94. Cover plate; 95. Hinge hole; 96. Hinge shaft; 97. Drainage groove; 98. Guide roller; 10. Limit sensor; 11. Smart lock. Detailed Implementation

[0031] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0032] according to Figures 1-6As shown, this utility model is a smart push-pull fireproof door for offshore wind farms, including an electrical control box 1, a door drive assembly 2, a door frame 3, a fireproof door leaf 4, a left sealing assembly 5, a right sealing assembly 6, an upper sealing assembly 7, and a lower sealing assembly 8. The left sealing assembly 5, right sealing assembly 6, upper sealing assembly 7, and lower sealing assembly 8 are located on the four sides of the fireproof door leaf 4. The door drive assembly 2 includes a drive motor 21, a track 22, a hanging wheel 23, a drive gear 24, a driven gear 25, and a toothed belt 26. The drive motor 21, track 22, drive gear 23, drive gear 24, driven gear 25, and toothed belt 26 are also included. 4. The driven gear 25 and the toothed belt 26 are located above the door frame 3. The hanging wheel 23 is connected to the top of the fireproof door leaf 4. The hanging wheel 23 is installed on the toothed belt 26. The toothed belt 26 meshes with the drive gear 24 and the driven gear 25. The drive gear 24 and the driven gear 25 are located at both ends of the track 22. The drive motor 21 is driven and connected to the drive gear 24. The drive motor 21 is electrically connected to the electrical control box 1. The door frame 3 includes a door opening 31 on the left and a door leaf compartment 32 on the right. The door leaf compartment 32 has a door leaf sliding entrance 33 on the left side that is adapted to the thickness of the fireproof door leaf 4.

[0033] The lower sealing assembly 8 is located below the ground below the fire door leaf 4, and includes a U-shaped sealing housing 81 and a lower sealing strip 82, a support plate 83, and a lifting drive device 84 disposed in the sealing housing 81. The lower sealing strip 82 is installed on the support plate 83, and the lifting drive device 84 is connected to the support plate 83. The lifting drive device 84 is installed at the bottom of the sealing housing 81.

[0034] The right-side sealing assembly 6 includes a right-side sealing strip 61, a first vertical baffle 62 disposed on the right side of the fireproof door leaf 4, and a second vertical baffle 63 disposed on the left side of the door leaf compartment 32. The right-side sealing strip 61 is installed on one side of the first vertical baffle 62.

[0035] The left sealing assembly 5 includes a left sealing strip 51 disposed on the left side of the fire door leaf 4.

[0036] The upper sealing assembly 7 includes an upper sealing strip 71, which is located in the upper sealing grooves 72 on both sides of the upper end of the door frame 3. An electromagnet device 73 is provided in the upper sealing groove 72. The upper sealing strip 71 is mounted on a magnetic suction plate 74. An elastic element 75 is provided between the magnetic suction plate 74 and the electromagnet device 73. An upper baffle 76 is provided at the opening of the upper sealing groove 72. The electromagnet device 73 is electrically connected to the electrical control box 1.

[0037] It also includes a limit sensor 10, which is located on both sides above the door frame 3 and is electrically connected to the electrical control box 1.

[0038] It also includes a smart lock 11, which is installed on the left side of the door frame 3 and the fire door leaf 4, and is electrically connected to the electrical control box 1. The smart lock 11 can be linked with the patrol robot to control the opening and closing of the entire fire door.

[0039] The working principle is as follows: When the patrol robot passes through the fire door 4 and issues an opening command, the lifting drive device 84 of the lower sealing component 8 is activated, which drives the lower sealing strip 82 on the support plate 83 to move downward, so that the lower sealing strip 82 separates from the bottom of the fire door 4; at the same time, the electromagnet device 73 of the upper sealing component 7 is activated, attracting the magnetic plate 74, thereby separating the upper sealing strip 71 on the magnetic plate 74 from the fire door 4; at this time, the smart lock 11 is opened, the drive motor 21 of the door drive component 2 is activated, and drives the drive gear 24 to rotate. The drive gear 24 drives the toothed belt 26 and the driven gear 25 to rotate. The hanging wheel 23 is installed on the toothed belt 26, thereby driving the hanging wheel 23 to move the fire door 4 slowly until the right limit sensor 10 detects that the fire door 4 has moved to the fully open position. The drive motor 21 of the door drive component 2 is turned off, and the patrol robot passes smoothly. After the patrol robot completes its task and issues a door-closing command, the drive motor 21 of the door drive assembly 2 starts and slowly moves the fireproof door 4 until the left limit sensor 10 detects that the fireproof door 4 has moved to the closed position. Then, the smart lock 11 automatically closes. Next, the lifting drive device 84 of the lower sealing assembly 8 starts and moves the lower sealing strip 82 on the support plate 83 upward, so that the lower sealing strip 82 contacts the bottom of the fireproof door 4, achieving a lower seal. At the same time, the electromagnet device 73 of the upper sealing assembly 7 closes, and the magnetic suction plate 74... Without attraction, under the action of the elastic element 75, the upper sealing strip 71 on the magnetic suction plate 74 comes into contact with the fire door leaf 4, achieving an upper seal; after the smart lock 11 is closed, the left sealing strip 51 of the left sealing assembly 5 is located between the left door frame 3 and the left side of the fire door leaf 4, forming a left mechanical seal by the pressure of the two; the right sealing strip 61 of the right sealing assembly 6 is located between the first vertical baffle 62 on the right side of the fire door leaf 4 and the second vertical baffle 63 on the left side of the door leaf compartment 32, forming a right mechanical seal by the pressure of the two.

[0040] according to Figures 7-8As shown, in any embodiment, horizontal baffles 85 are symmetrically arranged on both sides of the opening at the upper end of the sealing housing 81. The horizontal baffles 85 are installed on the upper end of the sealing housing 81 by bolts 86. The spacing of the horizontal baffles 85 is adapted to the thickness of the fireproof door leaf 4. The lower sealing strip 82 includes a lower main sealing strip 821 and a lower secondary sealing strip 822. The lower secondary sealing strip 822 is located below the horizontal baffles 85, and the lower main sealing strip 821 is located between the lower secondary sealing strips 822. The difference between this embodiment and other embodiments is that the lower main sealing strip 821 and the lower secondary sealing strip 822 form a stepped sealing structure. When the lifting drive device 84 pushes the support plate 83 up, the lower main sealing strip 821 first contacts the bottom of the door leaf to form a main sealing surface, and the lower secondary sealing strip 822 contacts the horizontal baffles 85 to form a secondary seal. The double seal effectively prevents ground water from flowing into the lower sealing housing 81 through the opening, thereby preventing corrosion of the lifting drive device 84.

[0041] according to Figures 7-8 As shown, in any embodiment, the lifting drive device 84 includes a dual-head motor 841 and a bearing seat 842 disposed at the bottom of the sealed housing 81. Each of the two drive ends of the dual-head motor 841 is connected to a lead screw 843. Bearings 844 are fitted at both ends of the lead screw 843. The bearings 844 are mounted on the bearing seat 842. Two nuts 845 are fitted on the lead screw 843 to cooperate with it. The two sides of the nuts 845 are connected to one end of the connecting rod 847 through a first shaft 846. The other end of the connecting rod 847 is fitted on a second shaft 848. The second shaft 848 is located on both sides of the connecting plate 849. The connecting plate 849 is connected to the support plate 83. The difference between this embodiment and other embodiments is that, during operation, the dual-head motor 841 starts and drives the two lead screws 843 at both ends to rotate simultaneously. At this time, the nut 845 will move left and right along the lead screw 843, thereby driving the two ends of the connecting rod 847 to rotate around the first axis 846 and the second axis 848 respectively, thereby realizing the lifting and lowering of the connecting plate 849, and finally achieving the purpose of driving the lower sealing strip 82 to lift and lower.

[0042] according to Figure 9As shown, in any embodiment, a rotatable cover plate mechanism is also included. The rotatable cover plate mechanism includes a servo motor 91 mounted on one end of a sealing housing 81. The servo motor 91 is driven by a cover plate gear 92. The cover plate gear 92 meshes with an inner cover plate gear 93. The inner cover plate gear 93 is an arc. One end of the inner cover plate gear 93 is connected to one end of a cover plate 94. A guide roller 98 is provided on the sealing housing 81. The inner cover plate gear 93 slides between the guide roller 98 and the cover plate gear 92. Both the cover plate 94 and the sealing housing 81 have hinge holes 95 at their upper ends. A hinge shaft 96 is fitted inside the hinge holes 95. The width of the cover plate 94 is greater than the opening width of the sealing housing 81. A drainage groove 97 is provided on one side of the sealing housing 81 below the cover plate 94. The difference between this embodiment and other embodiments is that the rotatable cover mechanism can allow the patrol robot to pass through, and can also divert water from the cover 94 to the drainage channel 97 below when condensation or rainwater appears on the fire door leaf 4. The specific working process is as follows: In the normal closed state, the cover 94 is in contact with the surface of the fire door leaf 4. When the patrol robot issues the door opening command, the servo motor 91 starts synchronously and drives the cover gear 92 to rotate, which in turn drives the cover internal gear 93 to rotate, causing the cover 94 to rotate along the hinge shaft 96, thereby separating the cover 94 from the surface of the fire door leaf 4. Then the servo motor 91 closes, and at this time the door drive assembly 2 drives the fire door leaf 4 to move slowly to the right until the door opens. Then the servo motor 91 starts again, rotating the cover 94 to a horizontal position, covering the upper opening of the lower sealing assembly 8 to facilitate the passage of the patrol robot. When closing the door, servo motor 91 starts and rotates cover plate 94 from a horizontal position to an angle that allows the fireproof door leaf 4 to pass smoothly. After the fireproof door leaf 4 is closed, cover plate 94 rotates to a position that is in contact with the surface of the fireproof door leaf 4. The simplified door opening process is as follows: servo motor 91 first drives cover plate 94 to rotate to the clearance angle → fireproof door leaf 4 moves into door leaf compartment 32 → cover plate 94 rotates to a horizontal position to cover the groove. The simplified door closing process is as follows: cover plate 94 rotates from a horizontal position to the clearance angle → fireproof door leaf 4 moves out → cover plate 94 returns to the position of contact with the door leaf.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A smart-controlled push-pull fire door for offshore wind farms, characterized in that, The fire door includes an electrical control box (1), a door drive assembly (2), a door frame (3), a fireproof door leaf (4), a left sealing assembly (5), a right sealing assembly (6), an upper sealing assembly (7), and a lower sealing assembly (8). The left sealing assembly (5), right sealing assembly (6), upper sealing assembly (7), and lower sealing assembly (8) are located on the four sides of the fireproof door leaf (4). The door drive assembly (2) includes a drive motor (21), a track (22), a hanging wheel (23), a drive gear (24), a driven gear (25), and a toothed belt (26). (26) is located above the door frame (3). The hanging wheel (23) is connected to the top of the fireproof door leaf (4). The hanging wheel (23) is installed on the toothed belt (26). The toothed belt (26) meshes with the drive gear (24) and the driven gear (25). The drive gear (24) and the driven gear (25) are located at both ends of the track (22). The drive motor (21) is driven by the drive gear (24). The drive motor (21) is electrically connected to the electrical control box (1). The door frame (3) includes a door opening (31) on the left and a door leaf compartment (32) on the right. The door leaf compartment (32) has a door leaf sliding entrance (33) on the left side that is adapted to the thickness of the fireproof door leaf (4).

2. The intelligent push-pull fireproof door for offshore wind farms according to claim 1, characterized in that, The lower sealing assembly (8) is located below the ground below the fire door leaf (4), and includes a U-shaped sealing housing (81) and a lower sealing strip (82), a support plate (83), and a lifting drive device (84) disposed in the sealing housing (81). The lower sealing strip (82) is installed on the support plate (83), and the lifting drive device (84) is connected to the support plate (83). The lifting drive device (84) is installed at the bottom of the sealing housing (81).

3. A smart sliding fire door for offshore wind farms according to claim 2, characterized in that, The upper opening of the sealing housing (81) is symmetrically provided with horizontal baffles (85) on both sides. The horizontal baffles (85) are installed on the upper end of the sealing housing (81) by bolts (86). The spacing of the horizontal baffles (85) is adapted to the thickness of the fireproof door leaf (4). The lower sealing strip (82) includes a lower main sealing strip (821) and a lower secondary sealing strip (822). The lower secondary sealing strip (822) is located below the horizontal baffles (85), and the lower main sealing strip (821) is located between the lower secondary sealing strips (822).

4. A smart sliding fire door for offshore wind farms according to claim 2, characterized in that, The lifting drive device (84) includes a double-head motor (841) and a bearing seat (842) located at the bottom of the sealed housing (81). Each of the two drive ends of the double-head motor (841) is connected to a lead screw (843). Bearings (844) are fitted at both ends of the lead screw (843). The bearings (844) are mounted on the bearing seat (842). Two nuts (845) are fitted on the lead screw (843) to cooperate with it. The two sides of the nuts (845) are connected to one end of the connecting rod (847) through a first shaft (846). The other end of the connecting rod (847) is fitted on a second shaft (848). The second shaft (848) is located on both sides of the connecting plate (849). The connecting plate (849) is connected to the support plate (83).

5. A smart sliding fire door for offshore wind farms according to claim 2, characterized in that, It also includes a rotatable cover plate mechanism, which includes a servo motor (91) mounted on one end of a sealing housing (81). The servo motor (91) is driven and connected to a cover plate gear (92). The cover plate gear (92) meshes with an inner cover plate gear (93). The inner cover plate gear (93) is an arc. One end of the inner cover plate gear (93) is connected to one end of a cover plate (94). A guide roller (98) is provided on the sealing housing (81). The inner cover plate gear (93) slides between the guide roller (98) and the cover plate gear (92). A hinge hole (95) is provided on the upper end of both the cover plate (94) and the sealing housing (81). A hinge shaft (96) is fitted inside the hinge hole (95). The width of the cover plate (94) is greater than the opening width of the sealing housing (81). A drainage groove (97) is provided on one side of the sealing housing (81) below the cover plate (94).

6. A smart sliding fire door for offshore wind farms according to claim 1, characterized in that, The right-side sealing assembly (6) includes a right-side sealing strip (61), a first vertical baffle (62) disposed on the right side of the fireproof door leaf (4), and a second vertical baffle (63) disposed on the left side of the door leaf compartment (32). The right-side sealing strip (61) is installed on one side of the first vertical baffle (62).

7. A smart sliding fire door for offshore wind farms according to claim 1, characterized in that, The left sealing assembly (5) includes a left sealing strip (51) disposed on the left side of the fire door leaf (4).

8. A smart sliding fire door for offshore wind farms according to claim 1, characterized in that, The upper sealing assembly (7) includes an upper sealing strip (71), which is located in the upper sealing groove (72) on both sides of the upper end of the door frame (3). An electromagnet device (73) is provided in the upper sealing groove (72). The upper sealing strip (71) is installed on a magnetic suction plate (74). An elastic element (75) is provided between the magnetic suction plate (74) and the electromagnet device (73). An upper baffle (76) is provided at the opening of the upper sealing groove (72). The electromagnet device (73) is electrically connected to the electrical control box (1).

9. A smart sliding fire door for offshore wind farms according to claim 1, characterized in that, It also includes a limit sensor (10), which is located on both sides above the door frame (3) and is electrically connected to the electrical control box (1).

10. A smart sliding fire door for offshore wind farms according to claim 1, characterized in that, It also includes a smart lock (11), which is installed on the left side of the door frame (3) and the fire door leaf (4), and the smart lock (11) is electrically connected to the electrical control box (1).

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