Fire and explosion proof integrated protective door

Abstract

The utility model relates to a fire and explosion integrated protection door belongs to the protection door field, for solving the crystallization that has not cleaned will be extruded between the door panel and the door frame sealing strip, not only will accelerate the aging, damage of sealing strip, reduce its service life, will also lead to the sealing is not strict, cannot effectively block the smoke and fire, high temperature and explosion shock wave, and then causes the fire spread, secondary explosion etc. accidental injury, seriously influence the fire and explosion core performance of protection door, can not satisfy the safety protection demand of the area of ship, a fire and explosion integrated protection door, including protection door main part, the door frame of rotation connection in the outside of protection door main part, through spring energy storage release drive rotary lever rotation, drive the scraper along the sealing strip inside profile fit rotation, thereby in the protection door closing process automatically removes the sea salt crystallization that adheres on the sealing strip, avoids the omission problem of artificial periodic cleaning, guarantees the air tightness and fireproof sealing performance of protection door.

Description

Technical Field

[0001] This invention relates to the field of protective doors, and in particular to an integrated fireproof and explosion-proof protective door. Background Technology

[0002] The open decks, side cabins, and external walkways of a ship are core passageways for crew members and equipment maintenance, and their safety is directly related to the ship's navigation and the personal and property safety of the crew. These areas are exposed to a harsh marine environment for a long time, and due to frequent personnel access and equipment handling, the fireproof and explosion-proof integrated protective doors used are usually kept open. The sealing strips of the door panels and frames are exposed to the elements for extended periods, making them susceptible to corrosion from the marine environment.

[0003] The aforementioned areas are directly affected by wave splashes, seawater erosion, and continuous high salt spray. A large amount of salt from the seawater adheres to the surface of the sealing strip; after moisture evaporates, residue remains and crystallizes, forming hard salt crystals that accumulate on the surface, texture, and root joints of the sealing strip. Because the protective door is frequently opened and the concealed parts of the sealing strip are difficult to clean, routine maintenance cannot completely remove the crystals, leading to their continuous accumulation.

[0004] Fire is a typical emergency situation during ship navigation, characterized by its suddenness and rapid spread. When staff discover a fire, their first action is to immediately close the protective door, leaving no time to clean the salt crystals on the sealing strips. These unremoved crystals will be squeezed between the door panel and the door frame sealing strip, which will not only accelerate the aging and damage of the sealing strip and reduce its service life, but also lead to poor sealing. This will prevent the effective blocking of smoke, high temperature and blast shock waves, which may cause the fire to spread, secondary explosions and other accidental damage, seriously affecting the fireproof and explosion-proof core performance of the protective door and failing to meet the safety protection needs of that area of ​​the ship.

[0005] To address the aforementioned issues, a fireproof and explosion-proof integrated protective door is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide an integrated fireproof and explosion-proof protective door, which solves the problem that uncleaned crystals will be squeezed between the door panel and the door frame sealing strip, which will not only accelerate the aging and damage of the sealing strip and reduce its service life, but also lead to poor sealing, which will not effectively block smoke, high temperature and explosion shock waves, thus causing accidental damage such as fire spread and secondary explosion, seriously affecting the core fireproof and explosion-proof performance of the protective door and failing to meet the safety protection needs of the ship in this area.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an integrated fireproof and explosion-proof protective door, comprising a protective door body, a door frame rotatably connected to the outside of the protective door body, a sealing strip fixedly connected to the protective door body between the protective door body and the door frame, a push cylinder fixedly connected to one side of the door frame, and a rotating mechanism disposed on one side of the protective door body; A reciprocating mechanism is provided on the outer side of the rotating mechanism, a scraper is provided on the outer side of one end of the rotating mechanism, and a striking plate is provided on the outer side of the reciprocating mechanism. The rotating mechanism is used to drive the scraper to rotate and move along the inner contour of the sealing strip during the closing of the protective door body; The reciprocating mechanism is used to drive the striking plate to reciprocate under the drive of the rotating mechanism, striking the elastic support strip inside the main body of the protective door.

[0008] 1. Compared with the prior art, the beneficial effects of the present invention are: by releasing the energy stored in the spring to drive the rotating rod to rotate, the scraper is driven to rotate along the inner contour of the sealing strip, thereby automatically removing the sea salt crystals attached to the sealing strip during the closing process of the protective door, avoiding the omission problem of manual periodic cleaning, and ensuring the airtightness and fireproof sealing performance of the protective door.

[0009] 2. The present invention drives the third guide rod to reciprocate axially along the third guide groove formed by the "V" shaped groove when the rotating rod rotates, thereby driving the striking plate to repeatedly strike the elastic support strip. This breaks up and redistributes the loose and hollow state of the heat insulation material caused by long-term vibration and sinking. Combined with the pre-compression and reset force of the elastic support strip, the material is compacted, restoring the continuity and density of the heat insulation layer of the protective door.

[0010] 3. This invention cleans the sealing strip with a scraper while simultaneously transmitting the vibration generated by striking the elastic support strip to the main body of the protective door and the sealing strip. This causes the sea salt crystals attached to the sealing strip to vibrate synchronously and fall off more quickly. At the same time, the airflow generated by the striking blows the fallen crystals away from the sealing strip area, improving cleaning efficiency and cleanliness.

[0011] 4. This invention uses a pre-compression installation of elastic support strips. When the insulation material shrinks in volume due to pulverization and settling, it automatically tightens itself through its own elastic reset, thereby eliminating local depressions that may occur inside the door panel due to lack of support, maintaining the flatness of the outer surface of the protective door, and making the reset of the sealing strip more precise, which is conducive to crystallization cleaning.

[0012] 5. This invention utilizes the combination of an electrically controlled permanent magnet and a magnetic rotating rod to reposition the rotating rod after the protective door has completed its maintenance or fire prevention tasks. This prevents the protective door from colliding and being damaged by the door frame when the ship is rocking, while also ensuring that the scraper and knocking plate are accurately returned to their positions, preparing for the next automatic cleaning.

[0013] 6. This invention achieves long-term, stable self-maintenance of the sealing and heat insulation performance of the protective door by relying entirely on the mechanical movement and spring energy storage of the entire cleaning and compaction action when the protective door is opened and closed, without the need for an additional power source or manual intervention, thereby reducing the maintenance frequency and labor costs of ship equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the elastic telescopic rod structure of the present invention; Figure 4 This is a schematic diagram of the structure at point A in the figure of the present invention; Figure 5 This is a schematic diagram of the groove structure of the present invention; Figure 6 This is a schematic diagram of the external structure of the second cylindrical part of the present invention; Figure 7 This is a schematic diagram of the external structure of the third guide groove of the present invention; Figure 8 This is a schematic diagram of the second guide groove structure of the present invention; Figure 9 This is a front view structural diagram of the protective door body of the present invention.

[0015] In the diagram: 1. Main body of the protective door; 2. Door frame; 3. Sealing strip; 4. Rotating mechanism; 5. Reciprocating mechanism; 6. Knocking plate; 7. Push cylinder; 8. Scraper; 41. Rotating assembly; 42. Telescopic assembly; 411. Support cylinder; 412. First guide groove; 413. Rotating rod; 414. First guide rod; 415. Spring; 416. Support plate; 417. Electro-controlled permanent magnet; 421. Linear telescopic rod; 422. Elastic telescopic rod; 423. Second guide groove; 424. Second guide rod; 51. Second cylinder; 52. Guide hole; 53. Third guide groove; 54. Third guide rod; 55. Elastic support strip; 56. Thermal insulation material. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-9The present invention provides the following technical solution: The device includes a protective door body 1, a door frame 2, a sealing strip 3, a push cylinder 7, a rotating mechanism 4, a reciprocating mechanism 5, a scraper 8, and a knocking plate 6. The protective door body 1, as the core load-bearing component of the entire device, is used to isolate fire and explosion impacts. It is internally provided with an elastic support strip 55 and a heat insulation material 56 to form a fireproof and heat-insulating layer. The door frame 2 is rotatably connected to the outside of the protective door body 1 and is used to install the protective door body 1 onto the ship's bulkhead or platform structure, and cooperates with the protective door body 1 to form a sealed interface. The sealing strip 3 is set between the protective door body 1 and the door frame 2 and is fixedly connected to the protective door body 1. It is used to fill the gap between the door body and the door frame 2 when the protective door body 1 is closed, so as to achieve airtightness and fireproof sealing. The push cylinder 7 is fixedly connected to one side of the door frame 2 and is used to provide power to drive the protective door body 1 to realize the opening and closing action.

[0018] The rotating mechanism (4) is located on one side of the main body (1) of the protective door. It is equipped with a spring (415) and an electric permanent magnet (417). When the protective door is normally open, the spring stores energy. When the door is closed, the electric permanent magnet is demagnetized and the spring is released instantly, driving the scraper (8) to rotate quickly once in the early stage of closing the door and complete the cleaning action along the inner contour of the sealing strip (3). This cleaning process is driven independently by the spring and does not depend on the closing speed. It can be completed in a few seconds, which is much less than the closing time required by the fire door. Therefore, it does not occupy the main closing time.

[0019] The reciprocating mechanism (5) is located outside the rotating mechanism (4). Driven by the rotating mechanism, it drives the striking plate (6) to reciprocate and strike the elastic support strip (55) inside the main body (1) of the protective door, so that the heat insulation material (56) is redistributed and compacted.

[0020] The scraper (8) is set on the outer side of one end of the rotating mechanism (4), and the striking plate (6) is set on the outer side of the reciprocating mechanism (5). The central axis of the scraper (8) is parallel to the central axis of the striking plate (6). After rotating once, the scraper (8) is automatically retracted into the door body outline by the vortex second guide groove (423). Before the door body is completely closed, it has already separated from the contact area between the sealing strip and the door frame to avoid being pinched. The striking plate completes the reciprocating striking in sync during the rotation process. The two are staggered in time and avoid each other in space to achieve coordinated operation of cleaning and compaction. The whole process does not require additional power source or manual intervention.

[0021] The rotating mechanism 4 includes a rotating component 41 and a telescopic component 42. The telescopic component 42 is located outside the rotating component 41. The rotating component 41 is used to convert the linear motion of the protective door body 1 when it is closed into rotational motion, providing rotational power for the scraper 8. The telescopic component 42 is used to drive the scraper 8 to extend and retract along the contour direction of the sealing strip 3 during rotation, so that the scraper 8 always fits the inner side of the sealing strip 3.

[0022] The rotating assembly 41 includes a support cylinder 411, a first guide groove 412, a rotating rod 413, a first guide rod 414, a spring 415, a support plate 416, and an electrically controlled permanent magnet 417. The support cylinder 411 is rotatably connected to the side of the protective door body 1 near the door frame 2, serving as the mounting base for the rotating assembly 41. The first guide groove 412 is cylindrical in shape and extends spirally along the inner wall of the support cylinder 411, forming a spiral lifting and lowering motion trajectory. Rod 413 is located inside the support cylinder 411. Its external structure is cylindrical, and the outer side of the rotating rod 413 is in close contact with the inner side of the support cylinder 411 to ensure that there is no radial wobbling when the rotating rod 413 rotates. The first guide rod 414 is fixedly connected to the rotating rod 413, and the first guide rod 414 is adapted to slide in the first guide groove 412. The first guide groove 412 and the first guide rod 414 are in clearance fit, so that the first guide rod 414 moves smoothly and without jamming during the lifting and sliding process.

[0023] A spring 415 is fixedly connected to one end of the rotating rod 413 near the protective door body 1. The spring 415 is rotatably connected to the protective door body 1. The compression of the spring 415 is completed by the push cylinder 7 or the manual door opening mechanism during the opening of the protective door body 1. This is used to drive the rotating rod 413 to move towards the door frame 2 in the released state. A support plate 416 is fixedly connected to one side of the door frame 2. An electrically controlled permanent magnet 417 is fixedly connected to the side of the support plate 416 near the protective door body 1. The protective door body 1 uses non-magnetic materials in the corresponding areas to reduce magnetic circuit resistance. The rotating rod 413 is made of magnetic material, and when the protective door body 1 is perpendicular to the door frame 2... The central axis of the rotating rod 413 is on the same vertical line as the central axis of the electro-magnet 417, which is used to realize the attraction and release of the rotating rod 413 by the electro-magnet 417. The electro-magnet 417 is not energized after the protective door is fully opened, and it is kept attracted by the permanent magnetic force, so that the spring 415 is kept in a compressed and ready state. At this time, the elastic force of the spring 415 and the attraction force of the electro-magnet 417 form a static balance. When the door is closed, the power is momentarily turned on to briefly demagnetize and release the spring. The elastic force of the spring 415 drives the rotating rod 413 to rotate to complete the cleaning action. The holding force of the electro-magnet 417 is provided by the permanent magnet and does not require continuous power supply. The spring force can be independently designed according to the energy required for cleaning.

[0024] The telescopic assembly 42 includes a linear telescopic rod 421, an elastic telescopic rod 422, a second guide groove 423, and a second guide rod 424. The linear telescopic rod 421 slides along the central axis of the rotating rod 413 and is slidably connected to the outside of the rotating rod 413. It can rotate synchronously with the rotating rod 413 and slide relative to it axially. The top end of the telescopic end of the linear telescopic rod 421 is fixedly connected to the elastic telescopic rod 422. The top end of the telescopic end of the elastic telescopic rod 422 is fixedly connected to the scraper 8. The elastic telescopic rod 422 is used to provide elastic pre-tightening force when the scraper 8 contacts the sealing strip 3, ensuring that the scraper 8 always adheres to the inner side of the sealing strip 3. The protective door body 1 is close to A second guide groove 423 is provided on one side of the door frame 2 and outside the support cylinder 411. The appearance and structure of the second guide groove 423 is an Archimedean spiral (vortex shape). A second guide rod 424 is slidably connected to the inner side of the second guide groove 423 and fixedly connected to the telescopic end of the linear telescopic rod 421. The second guide groove 423 and the second guide rod 424 are fitted with a clearance fit. The second guide groove 423 is used to guide the second guide rod 424 to move along the spiral trajectory when the rotating rod 413 rotates, so that the scraper 8 gradually approaches the sealing strip 3 to complete the cleaning during the rotation process, and gradually moves away from the sealing strip 3 to reset after cleaning. Under the action of the elastic telescopic rod 422, the scraper 8 always maintains flexible contact with the inside of the sealing strip. When it moves to the corner of the door, the elastic telescopic rod 422 automatically compresses or extends to avoid jamming. After the rotating rod 413 rotates one revolution, the scraper 8 is completely retracted into the outline of the protective door body 1 and disengages from the contact area between the sealing strip and the door frame before the door is completely closed, ensuring that it is not clamped.

[0025] The reciprocating mechanism 5 includes a second cylinder 51, a guide hole 52, a third guide groove 53, and a third guide rod 54. The second cylinder 51 slides along the central axis of the rotating rod 413 and is slidably connected to the outside of the rotating rod 413, while also being rotatably connected to the support cylinder 411. It is used to rotate synchronously with the rotating rod 413 and drive the striking plate 6 to achieve reciprocating motion during rotation. The inner side of the second cylinder 51 has a guide hole 52. The guide hole 52 has a straight external shape, and its central axis is parallel to the central axis of the rotating rod 413, which is used to provide linear guidance for the third guide rod 54. The outer side of the support cylinder 411 has a... The third guide groove 53 is composed of multiple "V"-shaped grooves arranged in a circular pattern and connected end to end to form a continuous wave-shaped trajectory. The transition design of the connection point of the "V"-shaped groove adopts an arc transition. The inner side of the third guide groove 53 is provided with a third guide rod 54 nested inside the guide hole 52. The third guide rod 54 is slidably connected to the second cylinder 51, and the third guide rod 54 is fixedly connected to the striking plate 6. The third guide groove 53 is used to drive the third guide rod 54 to reciprocate along the axis of the rotating rod 413 when the rotating rod 413 rotates, thereby driving the striking plate 6 to reciprocate to strike the elastic support bar 55.

[0026] The protective door body 1 is internally fixedly connected with elastic support bars 55. The elastic support bars 55 are arranged in a mutually perpendicular manner to form a grid-like support structure. The inner side of the elastic support bars 55 is filled with heat insulation material 56. The elastic support bars 55 are made of high-temperature resistant elastic steel and are in a pre-compressed state during installation. One end is fixed to the inner wall of the protective door body 1, and the other end elastically abuts against the opposite inner wall of the protective door body 1. This is used to apply a continuous supporting force to the heat insulation material 56. When the heat insulation material 56 shrinks in volume due to long-term vibration, it automatically fills the gap through its own elastic reset, maintaining the tightness of the heat insulation material 56. The pre-compressed structure of the elastic support bars 55 can not only adapt to ship vibration and avoid damage to the heat insulation material 56 by hard contact, but also automatically fill the gap through its own elastic reset when the heat insulation material 56 sinks or becomes hollow, ensuring the continuity and density of the heat insulation layer.

[0027] When routine maintenance and cleaning of the protective door are required, or when automatic cleaning is required in the event of a fire, the main body 1 of the protective door and the door frame 2 are in a vertical state (i.e., the protective door is in the open position). The electro-magnet 417 maintains its magnetism and attracts and holds the rotating rod 413 through electromagnetic force. The control program reverses the current to the electro-magnet 417, causing it to be temporarily demagnetized. The rotating rod 413 is no longer attracted by the electro-magnet 417 and is pushed to move towards one side of the door frame 2 under the elastic force of the spring 415.

[0028] When the rotating rod 413 moves, it drives the first guide rod 414, which is fixedly connected to it, to slide along the first guide groove 412. Since the first guide groove 412 has a spiral structure, the first guide rod 414 rotates circumferentially while moving axially, driving the rotating rod 413 to rotate. When the rotating rod 413 rotates, it drives the linear telescopic rod 421, the elastic telescopic rod 422, the second guide rod 424, and the scraper 8, which are slidably connected to it, to rotate synchronously. The second guide rod 424 slides in the second guide groove 423. Since the second guide groove 423 has a vortex structure, the second guide rod 424 moves from the outermost side to the innermost side of the second guide groove 423, driving the linear telescopic rod 421 and the elastic telescopic rod 422 to gradually retract, so that the scraper 8 gradually fits against the inner side of the sealing strip 3 during the rotation process.

[0029] When the scraper 8 rotates against the inner side of the sealing strip 3, it pushes the sea salt crystals attached to the inner side of the sealing strip 3 away from the surface of the sealing strip 3, thus achieving crystal cleaning. Since the cleaning action of the scraper 8 is automatically completed by the energy generated by the energy storage and release of the spring 415, as long as the main body 1 of the protective door can be rotated and closed, the scraper 8 will automatically clean the sealing strip 3, avoiding the omission problem of manual periodic cleaning. When the second guide rod 424 moves to the innermost side of the second guide groove 423, the elastic telescopic rod 422 is in a fully open state, and the linear telescopic rod 421 pulls the scraper 8 inward, so that the scraper 8 leaves the inner side of the sealing strip 3 and completes the reset.

[0030] While the rotating rod 413 rotates, it drives the second cylinder 51, guide hole 52, third guide rod 54 and striking plate 6 to rotate synchronously. One end of the third guide rod 54 is located in the third guide groove 53. Since the third guide groove 53 is composed of multiple "V" shaped grooves arranged in a circle and connected end to end, the third guide rod 54 is pushed to limit and guide when sliding along the third guide groove 53, so that the third guide rod 54 and the striking plate 6 reciprocate along the axis of the rotating rod 413. The striking plate 6 is pushed towards the elastic support bar 55 to reciprocate and strike.

[0031] When the striking plate 6 strikes the elastic support strip 55, it generates an instantaneous impact force, causing the elastic support strip 55 to vibrate slightly and elastically recover its shape. This vibration is transmitted to the surrounding insulation material 56, breaking up the loose state of the insulation material 56 caused by long-term settling and pulverization. This causes the originally accumulated and lumpy material to loosen and distribute evenly again. After the vibration, the elastic support strip 55 returns to its pre-compressed state, and the top support force generated by its elastic recovery acts synchronously on the loose insulation material 56, compacting and filling the original voids and gaps. This ensures that the insulation material 56 is tightly bonded to the inner wall of the protective door body 1 and the elastic support strip 55, restoring the density of the insulation layer, thereby ensuring the fireproof, heat-insulating, and impact-resistant performance of the protective door. While the scraper 8 cleans the sealing strip 3, the tapping plate 6 taps the elastic support strip 55. Since the sealing strip 3 is fixedly connected to the protective door body 1, the vibration generated by tapping the elastic support strip 55 is transmitted to the protective door body 1 and then to the sealing strip 3, causing the sealing strip 3 and the sea salt crystals attached to the sealing strip 3 to vibrate synchronously, accelerating the crystals to fall off and improving cleaning efficiency.

[0032] Meanwhile, due to the vibration of the ship, the heat insulation material 56 is pulverized and sinks, and the door panel may lose local support and cause local depressions, resulting in unevenness of the door panel. After the elastic support strip 55 vibrates, it returns to the pre-compressed state. The continuous supporting force generated by its elastic reset will compact the redistributed heat insulation material 56, so that the inner wall of the protective door body 1 is evenly supported, eliminating the local unsupported depressions in the door panel. The reset of the protective door body 1 further resets the sealing strip 3, making the salt crystallization on the inner side of the sealing strip 3 cleaner.

[0033] In addition, the central axis of the scraper 8 is parallel to the central axis of the striking plate 6, so that when the striking plate 6 is pushed back and forth, it can be pushed to strike the elastic telescopic rod 422 where the scraper 8 is located, causing the scraper 8 to be struck and vibrated, which makes it easier for the crystals on the outside of the scraper 8 to fall off, and the crystals at the sealing strip 3 where the scraper 8 is located to fall off.

[0034] After the fireproofing task of the main body 1 of the protective door is completed, the main body 1 of the protective door is rotated back to its original position. At this time, the electro-controlled permanent magnet 417 is energized and maintains its magnetism, and pulls the rotating rod 413 to reset it, so that the scraper 8 and the knocking plate 6 return to their initial positions. The rotating rod 413 is attracted by the electro-controlled permanent magnet 417, making the relative position of the main body 1 of the protective door more stable, and avoiding collision damage to the door frame 2 caused by the back-and-forth rotation of the main body 1 of the protective door when the ship is rocking at sea.

[0035] When manual maintenance and cleaning are required, the electro-magnet 417 can be reverse-energized through the control program according to the above steps, so that the electro-magnet 417 is briefly demagnetized. The scraper 8 will automatically rotate and clean the sealing strip 3. Compared with manual cleaning, it can reduce the missed areas and the cleaning effect is better.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fireproof and explosion-proof integrated protective door, characterized in that, It includes a protective door body (1), a door frame (2) rotatably connected to the outside of the protective door body (1), a sealing strip (3) fixedly connected to the protective door body (1) between the protective door body (1) and the door frame (2), a push cylinder (7) fixedly connected to one side of the door frame (2), and a rotating mechanism (4) set on one side of the protective door body (1). A reciprocating mechanism (5) is provided on the outside of the rotating mechanism (4), a scraper (8) is provided on the outside of one end of the rotating mechanism (4), and a striking plate (6) is provided on the outside of the reciprocating mechanism (5). The rotating mechanism (4) is used to drive the scraper (8) to rotate and move along the inner contour of the sealing strip (3) during the closing process of the protective door body (1); The reciprocating mechanism (5) is used to drive the striking plate (6) to reciprocate under the drive of the rotating mechanism (4) to strike the elastic support strip (55) inside the protective door body (1).

2. The fireproof and explosion-proof integrated protective door according to claim 1, characterized in that, The rotating mechanism (4) includes a rotating component (41) and a telescopic component (42), wherein the telescopic component (42) is disposed on the outside of the rotating component (41); The rotating component (41) is used to convert the linear motion of the protective door body (1) when it is closed into rotational motion; The telescopic assembly (42) is used to drive the scraper (8) to extend and retract along the contour direction of the sealing strip (3) during rotation.

3. The fireproof and explosion-proof integrated protective door according to claim 2, characterized in that, The rotating assembly (41) includes a support cylinder (411) rotatably connected to the side of the protective door body (1) near the door frame (2), a first guide groove (412) opened on the inner wall of the support cylinder (411), a rotating rod (413) disposed inside the support cylinder (411), and a first guide rod (414) fixedly connected to the rotating rod (413), wherein the first guide rod (414) is slidably connected in the first guide groove (412); The rotating rod (413) is fixedly connected to a spring (415) that is rotatably connected to the protective door body (1) at one end. A support plate (416) is fixedly connected to one side of the door frame (2), and an electrically controlled permanent magnet (417) is fixedly connected to the side of the support plate (416) near the protective door body (1).

4. The fireproof and explosion-proof integrated protective door according to claim 3, characterized in that, The rotating rod (413) is made of magnetic material, and when the protective door body (1) and the door frame (2) are in a perpendicular state, the central axis of the rotating rod (413) and the central axis of the electrically controlled permanent magnet (417) are on the same vertical line.

5. The fireproof and explosion-proof integrated protective door according to claim 3, characterized in that, The telescopic assembly (42) includes a linear telescopic rod (421) slidably connected to the outside of the rotating rod (413) and an elastic telescopic rod (422) fixedly connected to the telescopic end of the linear telescopic rod (421). The telescopic end of the elastic telescopic rod (422) is fixedly connected to the scraper (8). The protective door body (1) has a second guide groove (423) on the side near the door frame (2), and a second guide rod (424) that is fixedly connected to the telescopic end of the linear telescopic rod (421) is slidably connected in the second guide groove (423). The second guide groove (423) is vortex-shaped and is used to guide the second guide rod (424) to move along the vortex trajectory when the rotating rod (413) rotates.

6. The fireproof and explosion-proof integrated protective door according to claim 3, characterized in that, The reciprocating mechanism (5) includes a second cylinder (51) slidably connected to the outside of the rotating rod (413) and rotatably connected to the support cylinder (411), a guide hole (52) opened on the inside of the second cylinder (51), a third guide groove (53) opened on the outside of the support cylinder (411), and a third guide rod (54) nested in the guide hole (52). The third guide rod (54) is slidably connected to the second cylinder (51), and the third guide rod (54) is fixedly connected to the striking plate (6); The third guide groove (53) is composed of multiple "V" shaped grooves arranged in a circle and connected end to end, and is used to drive the third guide rod (54) to reciprocate along the axis of the rotating rod (413) when the rotating rod (413) rotates.

7. The fireproof and explosion-proof integrated protective door according to claim 6, characterized in that, The protective door body (1) is internally fixedly connected with an elastic support strip (55), the elastic support strip (55) is arranged in a mutually perpendicular manner, and the inner side of the elastic support strip (55) is filled with heat insulation material (56). The elastic support strip (55) is in a pre-compressed state and is used to apply a continuous supporting force to the thermal insulation material (56).

8. The fireproof and explosion-proof integrated protective door according to claim 7, characterized in that, The elastic support strip (55) is made of high temperature resistant elastic steel. One end of it is fixed to the inner wall of the protective door body (1), and the other end is elastically abutted against the inner wall of the opposite protective door body (1). It is used to automatically fill the gap by its own elastic reset when the heat insulation material (56) shrinks in volume.

9. The fireproof and explosion-proof integrated protective door according to claim 1, characterized in that, The central axis of the scraper (8) is parallel to the central axis of the striking plate (6), and the vibration generated by the striking plate (6) when striking the elastic support strip (55) is transmitted to the sealing strip (3).

10. The fireproof and explosion-proof integrated protective door according to claim 3, characterized in that, The electrically controlled permanent magnet (417) is used to maintain its magnetism after the protective door body (1) has completed its fire prevention task and been reset, and to attract the rotating rod (413) to reset the scraper (8) and the knocking plate (6), and to limit the relative rotation of the protective door body (1) in the state of ship rocking.

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