Steel fireproof weather tight door for ship

Abstract

The utility model relates to the technical field of weather tight door, and disclose a kind of steel fireproof marine weather tight door, including door frame and the door body connected by hinge, and the back of door handle is equipped with sealing groove in door body front, and the front end of door frame inner chamber center is provided with front frame plate, its front surface is installed and the sealing protrusion of sealing groove insertion is connected, outer edge is provided with the outer insertion plate of door frame inner wall insertion, and the bottom of door frame is provided with flow guide groove and front surface drainage groove intercommunication, and rear end of inner chamber is installed rear frame plate, the nested cooperation of the structure is formed by sealing groove and sealing protrusion and forms multistage sealing structure, effectively blocks wind and rain penetration and prevents seawater intrusion;The mechanical embedding of multiple points of outer insertion plate and door frame enhances the integrity of structure, to avoid vibration or impact leading to sealing failure;Steel material and double frame board protection system combination, both improve fireproof performance and delay fire spread, and through the rigid support of front frame plate and rear frame plate, the deformation resistance of door frame is enhanced, and installation datum is provided for sealing assembly.

Description

Technical Field

[0001] This utility model relates to the field of weatherproof doors, specifically a steel fireproof marine weatherproof door. Background Technology

[0002] Steel-hulled fire-resistant ships are special vessels designed according to the requirements of the International Maritime Organization. Their core function lies in the combined application of steel structures and fire-resistant materials to isolate and suppress the spread of fire in its early stages. The ships are classified into three fire-resistant zones: A, B, and C. Zone A: Utilizing steel bulkheads or decks combined with fire-resistant insulation materials, these zones can prevent smoke and flame penetration during a one-hour fire resistance test, with the temperature rise on the unexposed surface not exceeding 139°C. Zone B: The structure must prevent flame penetration for 30 minutes, with the temperature rise on the unexposed surface not exceeding 225°C. Zone C: Uses non-combustible materials, but temperature rise is not limited. As special vessels, steel-hulled fire-resistant ships must simultaneously meet multiple safety requirements, including fire resistance, smoke prevention, waterproofing, and structural strength. Weatherproof doors, as critical components, play an irreplaceable role in ensuring the safety of the ship.

[0003] Traditional steel fireproof marine weatherproof doors often use single-layer sealing strips or simple interlocking structures to achieve airtightness. However, long-term use has revealed the following drawbacks: single-layer sealing structures are prone to seal failure due to door deformation under strong winds and waves, allowing seawater to infiltrate the cabin through the door gaps; the connection between the door frame and sealing components often relies on welding or single-point fixing, which can easily loosen due to ship vibration or external impacts, leading to a decline in sealing performance; ordinary metal materials have insufficient fire resistance in fire scenarios, allowing fire to easily spread through the door; the single-frame plate structure design has weak deformation resistance, and long-term door frame deformation directly affects the installation stability of the sealing components, causing the sealing effect to decrease over time. Therefore, a steel fireproof marine weatherproof door is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a steel fireproof marine weatherproof door to solve the above-mentioned technical problems that not only affect the normal use of the door, but also lead to increased maintenance costs.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a steel fireproof marine weatherproof door, comprising:

[0008] A door frame, and a door body located on the front of the door frame, wherein the door body is connected to the door frame by a hinge, a door handle is installed on the front of the door body, and a sealing groove is provided on the back of the door body.

[0009] A front frame plate is located at the front center of the inner cavity of the door frame, and a sealing protrusion is installed on the front side of the front frame plate. The sealing protrusion is inserted and connected to the sealing groove. An outer insert plate is installed on the outside of the front frame plate and is inserted into the inner wall of the door frame.

[0010] A flow guide channel is located at the center of the bottom of the inner cavity of the door frame, and a drainage channel is located at the lower front of the door frame. The flow guide channel and the drainage channel are connected, and a rear frame plate is installed at the rear end of the inner cavity of the door frame. When the ship's cabin door is closed, the operator pushes the door body through the door handle, causing it to rotate around the hinge towards the door frame to close. The sealing groove on the back of the door body and the sealing protrusion on the front of the front frame plate form an interlocking fit, achieving a primary seal between the door body and the door frame through the concave-convex nesting structure. When the outer insert plate on the outside of the front frame plate is fully inserted into the inner wall of the door frame, the relative position of the front frame plate and the door frame is fixed by multi-point mechanical fitting. At the same time, the rear frame plate forms a rigid support at the rear end of the inner cavity of the door frame, forming a double-frame plate protection system together with the front frame plate. If a small amount of liquid enters the inner cavity of the door frame through the door gap, the liquid flows along the flow guide channel at the center of the bottom of the inner cavity and is quickly discharged to the outside of the door frame through the drainage channel connected to the flow guide channel, preventing the liquid from accumulating near the sealing structure.

[0011] Preferably, the outlet end of the guide channel is connected to the inlet end of the drainage channel, and the guide channel and drainage channel are L-shaped as a whole, with the guide channel positioned higher than the drainage channel. When liquid accidentally enters the inner cavity of the door frame, the liquid first flows along the guide channel at the center of the bottom of the inner cavity. Since the outlet end of the guide channel is connected to the inlet end of the drainage channel and the guide channel is positioned higher than the drainage channel, the liquid automatically flows from the guide channel to the drainage channel under the action of gravity, and is finally discharged to the outside of the door frame through the drainage channel.

[0012] Preferably, fixed outer plates are evenly installed on the outer side of the door frame, and the fixed outer plates are connected to the inner wall of the hull. The evenly distributed fixed outer plates on the outer side of the door frame are fixed to the inner wall of the hull by bolts or other mechanical connectors, so that the external load on the door frame is distributed and transferred to the hull structure through multiple connection points.

[0013] Preferably, the upper part of the door frame has a first air duct and a third air duct, and the first air duct and the third air duct are connected by a second air duct. The first air duct and the third air duct in the upper part of the door frame are connected by the second air duct to form an air circulation path.

[0014] Preferably, a fourth air duct is provided on both sides of the door frame, and the fourth air duct is connected to the first air duct. The air inlet ends of the third and fourth air ducts extend outward through the inner wall of the door frame. The fourth air ducts on both sides of the door frame are connected to the first air duct, and the air inlet ends of the third and fourth air ducts extend outward through the inner wall of the door frame, forming a multi-directional air intake channel.

[0015] Preferably, both the third and fourth air ducts are equipped with dust filter plates at their air inlet ends, and connecting holes are provided on both sides of the lower back of the door frame, with the connecting holes communicating with the bottom end of the fourth air duct. The dust filter plates at the air inlet ends of the third and fourth air ducts filter dust or impurities from the air entering the ducts, and draw out smoke from outside or inside the door frame through the air inlet ends of the third and fourth air ducts, preventing smoke from accumulating at the door frame and preventing the door from being opened. Adding fans or other equipment at the connecting holes creates suction at the air inlet ends of the third and fourth air ducts.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a steel fireproof marine weatherproof door, which has the following advantages:

[0018] 1. The steel fireproof ship weatherproof door has a sealing groove on the back of the door body that interlocks with the sealing protrusion on the front of the front frame plate. This concave-convex nested structure significantly enhances the sealing performance when the door is closed, effectively blocking wind and rain penetration. Especially when the ship is sailing in bad sea conditions, it can prevent seawater from entering the cabin through the door gap.

[0019] 2. The interlocking design between the outer insert plate on the outside of the front frame and the inner wall of the door frame further strengthens the overall structural integrity. Multi-point mechanical fitting enhances the connection strength between the door frame and the front frame, preventing sealing failure due to ship vibration or external impact. Simultaneously, the choice of steel material enhances fire resistance, slowing the spread of fire in the event of a fire. Furthermore, the rear frame and front frame together form a double-frame protection system, enhancing the overall deformation resistance of the door frame and providing a stable installation reference for the sealing components, ensuring the durability of sealing performance during long-term use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall right rear side view of the present invention;

[0022] Figure 3 This is a schematic diagram of the door frame and door body separation structure of this utility model;

[0023] Figure 4 This is a schematic cross-sectional view of the front end of the door frame of this utility model;

[0024] Figure 5 This is a cross-sectional view of the door frame portion of this utility model;

[0025] Figure 6 This is a schematic diagram of the right rear side view of the door frame of this utility model.

[0026] In the diagram: 1. Door frame; 2. Door body; 3. Hinge; 4. Door handle; 5. Sealing groove; 6. Guide groove; 7. Drainage groove; 8. Front frame plate; 9. Sealing protrusion; 10. Outer insert plate; 11. Rear frame plate; 12. Fixed outer plate; 13. First air duct; 14. Second air duct; 15. Third air duct; 16. Fourth air duct; 17. Dust filter plate; 18. Connecting hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This utility model provides a technical solution: a steel fireproof marine weatherproof door, comprising: (see details) Figure 1 , Figure 2 , Figure 3 and Figure 4 A door frame 1, and a door body 2 disposed on the front of the door frame 1, wherein the door body 2 is connected to the door frame 1 by a hinge 3, and a door handle 4 is installed on the front of the door body 2, and a sealing groove 5 is provided on the back of the door body 2.

[0029] The front frame plate 8 is located at the front center of the inner cavity of the door frame 1, and a sealing protrusion 9 is installed on the front side of the front frame plate 8. The sealing protrusion 9 is inserted and connected to the sealing groove 5. An outer insert plate 10 is installed on the outside of the front frame plate 8, and the outer insert plate 10 is inserted into the inner wall of the door frame 1.

[0030] A flow channel 6 is provided at the center of the bottom of the inner cavity of the door frame 1, and a drainage channel 7 is provided at the lower front of the door frame 1. The flow channel 6 is connected to the drainage channel 7, and a rear frame plate 11 is installed at the rear end of the inner cavity of the door frame 1. When the ship's cabin door is closed, the operator pushes the door body 2 with the door handle 4, causing it to rotate around the hinge 3 towards the door frame 1 to close. The sealing groove 5 on the back of the door body 2 and the sealing protrusion 9 on the front of the front frame plate 8 form an interlocking fit, achieving a primary seal between the door body 2 and the door frame 1 through the concave-convex nesting structure. When the outer insert plate 10 on the outside of the front frame plate 8 is fully inserted into the inner wall of the door frame 1, the relative position of the front frame plate 8 and the door frame 1 is fixed by multi-point mechanical fitting. At the same time, the rear frame plate 11 forms a rigid support at the rear end of the inner cavity of the door frame 1, forming a double-frame plate protection system together with the front frame plate 8. If a small amount of liquid enters the inner cavity of the door frame 1 through the door gap, the liquid flows along the guide groove 6 at the center of the bottom of the inner cavity and is quickly discharged to the outside of the door frame 1 through the drainage groove 7 which communicates with the guide groove 6, preventing liquid from accumulating near the sealing structure. When the ship is sailing or encounters external impact, the synergistic effect of the front frame plate 8 and the rear frame plate 11 maintains the overall structural stability of the door frame 1. The nested cooperation between the sealing protrusion 9 and the sealing groove 5 maintains the sealing performance. The insertion structure of the outer insert plate 10 prevents the connection from loosening. Through the concave-convex nesting design of the sealing groove 5 and the sealing protrusion 9, a multi-level sealing structure is formed when the door 2 is closed, which significantly improves the weather tightness and effectively prevents seawater from entering the cabin through the door gap in harsh sea conditions, ensuring the safety of the equipment inside the cabin. The insertion structure of the outer insert plate 10 on the outside of the front frame plate 8 and the inner wall of the door frame 1 enhances the overall structure through multi-point mechanical interlocking, avoiding sealing failure caused by ship vibration or external impact. Combined with the fireproof properties of the steel material, it delays the spread of fire through the door 2 in the event of a fire, improving the ship's fire safety. The double frame plate protection system composed of the front frame plate 8 and the rear frame plate 11 enhances the deformation resistance of the door frame 1 through front and rear double support, provides a stable installation benchmark for the sealing components, ensures the durability of the sealing performance during long-term use, and reduces the frequency of maintenance.

[0031] Please see Figure 3 The outlet of the guide channel 6 is connected to the inlet of the drainage channel 7, and the guide channel 6 and the drainage channel 7 are designed in an L-shape, with the guide channel 6 positioned higher than the drainage channel 7. When liquid accidentally enters the inner cavity of the door frame 1, the liquid first flows along the guide channel 6 at the center of the bottom of the inner cavity. Since the outlet of the guide channel 6 is connected to the inlet of the drainage channel 7 and the guide channel 6 is positioned higher than the drainage channel 7, the liquid automatically flows from the guide channel 6 to the drainage channel 7 under the action of gravity, and is finally discharged to the outside of the door frame 1 through the drainage channel 7. The L-shaped guide structure achieves directional discharge of liquid, avoiding the accumulation of liquid near the sealing structure, preventing long-term water accumulation from causing corrosion of metal parts or increasing the opening resistance of the door 2, and completing the drainage process without additional power.

[0032] Please see Figure 1Fixed outer plates 12 are evenly installed on the outer side of the door frame 1, and the fixed outer plates 12 are connected to the inner wall of the ship. The fixed outer plates 12, which are evenly distributed on the outer side of the door frame 1, are fixed to the inner wall of the ship by bolts or other mechanical fasteners. The external loads on the door frame 1, such as ship vibration and water pressure impact, are distributed to the ship structure through multiple connection points, which enhances the connection strength between the door frame 1 and the ship, avoids stress concentration caused by single-point fixing, improves the structural stability of the door body 2 under harsh working conditions, and extends the service life of the sealing components.

[0033] Please see Figure 5 and Figure 6 The upper part of the door frame 1 has a first air duct 13 and a third air duct 15, and a second air duct 14 connects the first air duct 13 and the third air duct 15. The first air duct 13 and the third air duct 15 in the upper part of the door frame 1 are connected through the second air duct 14 to form an air circulation path. A fourth air duct 16 is opened on both sides of the door frame 1, and the fourth air duct 16 is connected to the first air duct 13. The air intake ends of the third air duct 15 and the fourth air duct 16 extend outward through the inner wall of the door frame 1. The fourth air ducts 16 on both sides of the door frame 1 are connected to the first air duct 13, and the air intake ends of the third air duct 15 and the fourth air duct 16 extend outward through the inner wall of the door frame 1 to form a multi-directional air intake channel. Dust filter plates 17 are installed at the air intake ends of the third air duct 15 and the fourth air duct 16, and connecting holes 18 are opened on both sides of the lower back of the door frame 1, and the connecting holes 18 are connected to the bottom end of the fourth air duct 16. Dust filter plates 17 are installed at the air inlet ends of the third air duct 15 and the fourth air duct 16 to filter dust or impurities in the air entering the air duct. The smoke outside or inside the door frame 1 is extracted through the air inlet ends of the third air duct 15 and the fourth air duct 16 to prevent smoke from accumulating at the door frame 1 and making it impossible to open the door 2. A fan or other equipment is added at the connecting hole 18 to generate suction at the air inlet ends of the third air duct 15 and the fourth air duct 16.

[0034] This solution: The operator pushes the door 2 by rotating the door handle 4, causing the door 2 to rotate around the hinge 3 towards the door frame 1 until the front of the door 2 is completely in contact with the front of the door frame 1, thus completing the initial closure of the cabin door. The sealing groove 5 on the back of the door 2 and the sealing protrusion 9 on the front of the front frame plate 8 form an interlocking fit. The concave-convex nested structure achieves the primary seal between the door 2 and the door frame 1, preventing the penetration of external liquids and gases.

[0035] The outer insert plate 10 on the outside of the front frame plate 8 is fully inserted into the preset slot on the inner wall of the door frame 1. The relative position of the front frame plate 8 and the door frame 1 is fixed by multi-point mechanical fitting to prevent the sealing structure from loosening due to ship vibration. The rear frame plate 11 forms a rigid support at the rear end of the inner cavity of the door frame 1, and together with the front frame plate 8, it forms a double frame plate protection system to enhance the overall anti-deformation ability of the door frame 1 and provide a stable installation benchmark for the sealing components.

[0036] If a small amount of liquid enters the inner cavity of the door frame 1 through the door gap, the liquid flows along the guide channel 6 at the center of the bottom of the inner cavity. Since the water outlet of the guide channel 6 is connected to the water inlet of the drainage channel 7 and the guide channel 6 is higher than the drainage channel 7, the liquid automatically flows to the drainage channel 7 under the action of gravity and is finally discharged to the outside of the door frame 1 through the drainage channel 7, so as to avoid water accumulation and corrosion or increase the opening resistance of the door 2.

[0037] When the ship is sailing or encounters external impact, the front frame plate 8 and the rear frame plate 11 work together to maintain the structural stability of the door frame 1; the nesting fit between the sealing protrusion 9 and the sealing groove 5 maintains the sealing performance; the plug-in structure of the outer insert plate 10 prevents the connection parts from loosening and ensures the weather tightness performance is durable and effective; the fixed outer plates 12 evenly distributed on the outside of the door frame 1 are connected to the inner wall of the ship through bolts, which disperses the external loads such as water pressure impact and ship vibration on the door frame 1 to the hull structure through multi-point connection, avoids single-point stress concentration, and improves the long-term reliability of the door 2.

[0038] After being filtered by the dust filter plate 17, the outside air enters the door frame 1 air duct system through the air inlet of the third air duct 15 and the fourth air duct 16; the internal smoke is connected to the bottom of the fourth air duct 16 through the connecting hole 18, forming a directional airflow with the assistance of the fan, preventing the smoke from accumulating and affecting the opening operation of the door 2.

[0039] 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.

[0040] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel fireproof marine weatherproof door, characterized in that, include: A door frame (1), and a door body (2) disposed on the front of the door frame (1), and the door body (2) is connected to the door frame (1) by a hinge (3), and a door handle (4) is installed on the front of the door body (2), and a sealing groove (5) is provided on the back of the door body (2). A front frame plate (8) is located at the front end of the inner cavity of the door frame (1), and a sealing protrusion (9) is installed on the front side of the front frame plate (8). The sealing protrusion (9) is inserted and connected to the sealing groove (5), and an outer insert plate (10) is installed on the outside of the front frame plate (8), and the outer insert plate (10) is inserted into the inner wall of the door frame (1). A flow channel (6) is opened at the bottom center of the inner cavity of the door frame (1), and a drainage channel (7) is opened at the lower front of the door frame (1). The flow channel (6) is connected to the drainage channel (7), and a rear frame plate (11) is installed at the rear end of the inner cavity of the door frame (1).

2. A steel fireproof marine weatherproof door according to claim 1, characterized in that: The outlet end of the guide channel (6) is connected to the inlet end of the drainage channel (7), and the guide channel (6) and the drainage channel (7) are designed as an L-shape. The guide channel (6) is higher than the drainage channel (7).

3. A steel fireproof marine weatherproof door according to claim 1, characterized in that: The outer side of the door frame (1) is uniformly equipped with a fixed outer plate (12), and the fixed outer plate (12) is connected to the inner wall of the ship.

4. A steel fireproof marine weatherproof door according to claim 1, characterized in that: The upper part of the door frame (1) is provided with a first air duct (13) and a third air duct (15), and a second air duct (14) is connected between the first air duct (13) and the third air duct (15).

5. A steel fireproof marine weatherproof door according to claim 4, characterized in that: The door frame (1) has a fourth air duct (16) on both sides, and the fourth air duct (16) is connected to the first air duct (13). The air inlet ends of the third air duct (15) and the fourth air duct (16) extend outward through the inner wall of the door frame (1).

6. A steel fireproof marine weatherproof door according to claim 5, characterized in that: The air inlet ends of the third air duct (15) and the fourth air duct (16) are both equipped with dust filter plates (17), and connecting holes (18) are provided on both sides of the lower back of the door frame (1), and the connecting holes (18) are connected to the bottom end of the fourth air duct (16).

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