Marine weather tight door based on carbon fibers

Abstract

The invention relates to the technical field of ship sealing doors, in particular to a ship weather tight door based on carbon fibers, which comprises a door frame used for being mounted and connected with a ship body; the inner wall of the door frame is slidably connected with a door plate, the door plate is used for shielding wind and rain, the outer wall of the hinge is fixedly connected with the outer wall of the door frame, and the hinge is used for connecting the door frame and the door plate. The door frame is made of EH36 high-strength steel plates, the door has certain strength and rigidity, meanwhile, the overall mass is light, compared with a traditional steel weather-tight door, the weight is reduced, lightweight design of a ship is facilitated, the sailing performance and fuel efficiency of the ship are improved, the overall mass is light, and the strength is high. And by combining stress condition analysis, the watertight door structure is optimized, and the rigidity, the strength and the use stability of the weather tight door structure are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of ship sealing doors, and in particular to a ship weathertight door based on carbon fiber. Background Art

[0002] Marine weathertight doors are doors used for closing on board ships, usually installed at the entrances and exits of closed superstructures, deckhouses, engine rooms and companionways above the freeboard deck. This door can keep the interior of the ship dry, ventilated and comfortable under windy and rainy weather conditions. Marine weathertight doors are weathertight and watertight, and can prevent wind, rain and seawater from invading the interior of the ship.

[0003] With the continuous development of composite material molding technology and the continuous improvement of high-performance fibers, higher requirements are put forward for the appearance and function of various composite material equipment products. At present, marine weathertight doors are mainly made of steel materials. The components of metal weathertight doors are assembled through traditional mechanical processing or manual welding. The weathertight doors after molding have problems such as heavy weight, rough appearance, and poor product consistency. At the same time, in demanding environments, such as marine environments, various problems such as rust and oxidation are prone to occur, which causes great difficulties for the later maintenance and repair of the products. At the same time, the heavy weight of metal weathertight doors makes it difficult to open and close the weathertight doors during use. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention solves the technical problems by adopting the following technical solutions: a carbon fiber-based marine weathertight door, comprising: a door frame, the door frame being used for installation and connection with the hull; a door panel being slidably connected to the inner wall of the door frame, the door panel being used for shielding against wind and rain, and further comprising: a hinge, the outer wall of the hinge being fixedly connected to the outer wall of the door frame, the hinge being used for connecting the door frame and the door panel, the end of the hinge away from the door frame being fixedly connected to the outer wall of the door panel; a sealing gasket, the outer wall of the sealing gasket being connected to the inner wall of the door frame. The door frame is fixedly connected to the wall, and the sealing gasket is arranged along the inner wall of the door frame in a circle, which is used to cooperate with the door panel for contact and sealing; the five-point locking mechanism is arranged on the outside of the door panel, and the five-point locking mechanism is used to close and seal the door panel; the five-point locking mechanism includes a lock core, the outer wall of the lock core is fixedly connected to the first latch, the outer wall of the lock core is fixedly connected to the adjustment disk, the outer wall of the adjustment disk is fixedly connected to the handle, the outer wall of the adjustment disk is provided with a pull rod, and the outer wall of the pull rod is symmetrically connected to the connecting plate. The hinge is made of stainless steel, which has the properties of corrosion resistance, high strength, high hardness, good toughness and fatigue resistance, which can meet the strict requirements of ships on the performance of hinges in complex marine environments.

[0005] The present invention is further configured such that the door frame is connected to the hull by welding, the material of the door frame is EH36 high-strength steel, the profile section of the door frame adopts a local thickening structure, and the contact surface between the door frame and the sealing gasket is designed with a flange structure. Compared with carbon structural steel of this type of steel, EH36 steel has the advantages of high strength, good comprehensive performance, long service life, and wide application range. The main body of the door panel adopts a T700 carbon fiber reinforced composite foam sandwich structure, so that the door frame has the functions of lightweight, salt spray resistance and high strength. A 13mm flange is designed on the contact surface between the door frame and the sealing gasket to increase the contact area with the sealing gasket on the door frame and improve the sealing performance of the wind and rain tight door.

[0006] The present invention is further configured such that the door panel is provided with reinforcing ribs inside, the door panel adopts a carbon fiber composite structure, and is formed by a prepreg-autoclave process, and the interior of the door panel is filled with a polyurethane foam core material. The door panel adopts a carbon fiber composite structure. In order to achieve the lightweight requirements of the weathertight door, the door panel uses carbon fiber prepreg and foam sandwich structure, and reinforces the stress concentration and large deformation areas. The stiffness of the door panel is increased by adding reinforcing ribs locally.

[0007] The present invention is further configured such that the outer wall of the door panel is slidably connected to the outer wall of the sealing gasket, and the material of the sealing gasket is EPDM rubber. The sealing gasket is made of EPDM rubber and is integrally formed by a mold. By evenly distributing the closing force, the sealing gasket can be evenly compressed around the entire door, thereby improving the reliability and durability of the seal. This uniform compression method can reduce the occurrence of premature wear or failure caused by excessive local compression of the sealing gasket.

[0008] The present invention is further configured such that the outer wall of the lock core is rotatably connected to the inner wall of the door panel, the outer wall of the first latch is slidably connected to the outer wall of the door frame, and the outer wall of the pull rod is rotatably connected to the outer wall of the adjustment disk.

[0009] The present invention is further configured such that the outer wall of the connecting plate is rotatably connected to the bottom plate, the outer wall of the connecting plate is fixedly connected to the second latch, the outer wall of the connecting plate is rotatably connected to the connecting rod, the end of the connecting rod away from the connecting plate is rotatably connected to the third latch, and the outer wall of the third latch is rotatably connected to the fixed plate. The five-point locking mechanism is made of stainless steel, which contains high levels of chromium and nickel, as well as 2% molybdenum. These elements make it have excellent corrosion resistance, especially strong resistance to seawater, salt water and many chemicals. It also has good toughness and fatigue resistance, can withstand large loads and impacts, and is not prone to cracks and fractures. At the same time, stainless steel has a low thermal expansion coefficient, so it deforms less in a high temperature environment, which helps to maintain the stability of the size of the parts.

[0010] The present invention is further configured such that the outer walls of the bottom plate and the fixed plate are fixedly connected to the outer walls of the door plate, the outer walls of the second latch and the third latch are slidably connected to the outer walls of the door frame, the outer walls of the first latch, the second latch and the third latch are rotatably connected to rollers, and the inner edge of the door frame is provided with an inclined wedge that gradually comes into close contact with the roller. The collaborative working mode of the five locking points can provide a more uniform and stable locking force. Compared with the single-point or a few-point locking method, it can better resist external force interference from different directions. The material of the inclined wedge is wear-resistant nylon material, and the structure is designed as a slope structure to ensure that the watertight door can be smoothly locked after closing, and it is more wear-resistant. Secondly, a roller structure is used in the locking to avoid the commonly used sliding structure and use a rolling structure instead, which increases the smoothness of the hatch opening and closing.

[0011] The beneficial effects of the present invention are as follows: 1. The present invention adopts carbon fiber material for integrated molding. The door panel adopts carbon fiber composite structure and the door frame adopts EH36 high-strength steel plate. While ensuring that the door has certain strength and rigidity, the overall weight is light. Compared with the traditional steel weatherproof door, the weight is reduced, which is conducive to the lightweight design of the ship, improves the navigation performance and fuel efficiency of the ship, and has a light overall weight and high strength. Combined with the analysis of the force conditions, the watertight door structure is optimized to ensure the rigidity, strength and stability of the weathertight door structure.

[0012] 2. The present invention optimizes the structure of the wind and rainproof door by analyzing the stress conditions. The cross-section of the door frame profile is partially thickened, and a flange is designed on the contact surface with the sealing gasket to increase the contact area and improve the sealing performance. The door panel is reinforced in the areas with concentrated stress and large deformation, and reinforcing ribs are added locally to improve the overall structural performance of the door.

[0013] 3. The present invention designs the sealing structure by setting, widens the contact surface between the door frame and the sealing ring, and adopts an integrated molding structure to improve the sealing and waterproof performance of the product. It can also work normally in a dusty environment and has good adaptability to the sealing requirements in different environments.

[0014] 4. The present invention can ensure that the weathertight door is tightly and firmly locked when closed by arranging a five-point locking mechanism. The five main locking points work together to evenly compress the sealing gasket between the door frame and the door panel to form an effective airtight barrier, further improving the reliability and durability of the seal and reducing premature wear or failure caused by local excessive pressure on the sealing gasket.

[0015] 5. The present invention adopts integrated molding technology to form the mold, and the composite material weathertight door has high production efficiency, good product quality consistency, stable appearance size, high precision, reduces manual intervention and errors in the production process, and is conducive to large-scale production. Due to the reasonable structural design and good material performance, the weathertight door is not prone to rust, stagnation, abnormal noise and other problems during use, and the daily maintenance workload is small and the cycle is short, which reduces the maintenance cost. At the same time, the sealing structure is convenient for daily maintenance and maintenance, ensuring the long-term normal operation of the weathertight door. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the present invention; Figure 2 It is a schematic diagram of the structure of the sealing gasket of the present invention; Figure 3 is a rear view of the present invention; Figure 4 It is a structural expansion diagram of the present invention; Figure 5 It is a structural schematic diagram of the five-point locking mechanism of the present invention; Figure 6 The present invention Figure 3 A magnified view of the structure at A; Figure 7 It is a structural schematic diagram of the connection between the door frame and the hull of the present invention.

[0017] In the figure: 1. door frame; 2. door panel; 3. hinge; 4. five-point locking mechanism; 41. lock core; 42. first latch; 43. handle; 44. adjustment dial; 45. pull rod; 46. bottom plate; 47. connecting plate; 48. second latch; 49. connecting rod; 410. fixing plate; 411. third latch; 5. sealing gasket. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses. Example

[0019] See also Figure 1 - Figure 7The present invention provides a technical solution: a carbon fiber-based marine weathertight door, comprising: a door frame 1, the door frame 1 is used for installation and connection with the hull; the inner wall of the door frame 1 is slidably connected with a door panel 2, the door panel 2 is used to shield against wind and rain, and further comprising: a hinge 3, the outer wall of the hinge 3 is fixedly connected to the outer wall of the door frame 1, the hinge 3 is used for connecting the door frame 1 and the door panel 2, and the end of the hinge 3 away from the door frame 1 is fixedly connected to the outer wall of the door panel 2; a sealing gasket 5, the outer wall of the sealing gasket 5 is fixedly connected to the inner wall of the door frame 1, and the sealing gasket 5 is fixedly connected along the door panel 2. A circle is set on the inner wall of the frame 1 for contacting and sealing with the door panel 2; a five-point locking mechanism 4 is set on the outside of the door panel 2, and the five-point locking mechanism 4 is used to close and seal the door panel 2; the five-point locking mechanism 4 includes a lock core 41, the outer wall of the lock core 41 is fixedly connected to a first latch 42, the outer wall of the lock core 41 is fixedly connected to an adjustment disk 44, the outer wall of the adjustment disk 44 is fixedly connected to a handle 43, the outer wall of the adjustment disk 44 is set with a pull rod 45, and the outer wall of the pull rod 45 is symmetrically connected to a connecting plate 47. The door panel 2 is opened and closed on the door frame 1 by means of a fixed hinge 3, and the handle 43 drives the adjusting disk 44 fixedly connected thereto to rotate, so that the adjusting disk 44 is rotated on the inner wall of the door panel 2 through the fixed lock core 41. Since the outer wall of the lock core 41 is rotationally connected to the inner wall of the door panel 2, the lock core 41 remains relatively stable. At this time, the first latch 42 fixedly connected to the lock core 41 rotates with the rotation of the lock core 41 and approaches the door frame 1.

[0020] The door frame 1 is connected to the hull by welding. The material of the door frame 1 is EH36 high-strength steel. The profile section of the door frame 1 adopts a local thickening structure, and the contact surface between the door frame 1 and the sealing gasket 5 is designed with a flange structure. When the door panel 2 is closed, the sealing gasket 5 is compressed to form an effective airtight barrier. It can ensure that the weathertight door has no leakage and water marks on the reverse side of the tested part when the flushing pressure is not less than 196kPa, the flushing distance is not more than 1.5 meters, and the flushing duration is not less than three minutes.

[0021] The door panel 2 is provided with reinforcing ribs inside. The door panel 2 adopts a carbon fiber composite structure and is formed by prepreg-autoclave process. The door panel 2 is filled with polyurethane foam core. The weatherproof door adopts a lightweight design. The door panel is formed with 1.5mm carbon fiber prepreg inside and outside. The section of the door panel 2 profile is partially thickened to ensure the strength and sealing of the door panel 2. The interior is filled with polyurethane foam core. Weight reduction design is carried out in terms of wall thickness and ply. The outer wall of the door panel 2 is slidably connected to the outer wall of the sealing gasket 5, and the sealing gasket 5 is made of EPDM rubber. The composite material product test with the same structure, material and process verifies that the composite material weathertight door can work normally in a sand and dust environment with a sand particle diameter of 0.5-1.5mm, a concentration of 0.018-0.35g / m3, a wind speed of 18m / s, and a temperature of 38°C; a sand and dust diameter of 0.1-0.3mm, a concentration of 0.35-14g / m3, a wind speed of 18m / s, and a temperature of 21°C.

[0022] The outer wall of the lock core 41 is rotatably connected to the inner wall of the door panel 2, the outer wall of the first latch 42 is slidably connected to the outer wall of the door frame 1, and the outer wall of the pull rod 45 is rotatably connected to the outer wall of the adjustment disk 44. The outer wall of the connecting plate 47 is rotatably connected to the bottom plate 46, the outer wall of the connecting plate 47 is fixedly connected to the second latch 48, the outer wall of the connecting plate 47 is rotatably connected to the connecting rod 49, the end of the connecting rod 49 away from the connecting plate 47 is rotatably connected to the third latch 411, and the outer wall of the third latch 411 is rotatably connected to the fixed plate 410. The pull rod 45 rotatably connected to the outer wall of the adjusting disk 44 also moves with the rotation of the adjusting disk 44, pulling the connecting plates 47 rotatably connected at both ends to rotate on the outer wall of the bottom plate 46, so that the connecting plate 47 drives the fixedly connected second latch 48 to rotate, and drives the rotatably connected connecting rod 49 to move, so that the third latch 411 rotates on the fixed plate 410. When the first latch 42, the second latch 48 and the third latch 411 all move to their respective corresponding locking positions on the door frame 1, the door panel 2 and the door frame 1 are tightly locked together from different directions.

[0023] The outer wall of the bottom plate 46 and the fixed plate 410 is fixedly connected to the outer wall of the door panel 2, the outer wall of the second latch 48 and the third latch 411 is slidably connected to the outer wall of the door frame 1, and the outer wall of the first latch 42, the second latch 48 and the third latch 411 is rotatably connected to the roller. The inner edge of the door frame 1 is provided with an inclined wedge that gradually contacts the roller. The five-point locking mechanism is made of stainless steel, which contains high levels of chromium and nickel, as well as 2% molybdenum. These elements make it have excellent corrosion resistance, especially strong resistance to seawater, salt water and many chemicals. Stainless steel also has good toughness and fatigue resistance, can withstand large loads and impacts, and is not prone to cracks and fractures. At the same time, the thermal expansion coefficient of stainless steel is low, so it is less deformed in a high temperature environment, which helps to maintain the stability of the size of the parts.

[0024] Working principle: The marine weathertight door is mainly composed of a door frame 1, a hinge 3, a door panel 2, a sealing gasket 5 and a five-point locking mechanism 4. The door frame 1 serves as the frame structure of the door, and the hinge 3 connects the door frame 1 and the door panel 2, so that the door panel 2 can rotate and open relative to the door frame 1. The sealing gasket 5 is installed on the inner wall of the door frame 1 and is in sliding contact with the outer wall of the door panel 2 to achieve a sealing function when the door is closed. The five-point locking mechanism 4 is arranged outside the door panel 2 to firmly lock the door; When the door panel 2 needs to be locked, the handle 43 is turned, and the handle 43 drives the adjusting disk 44 fixedly connected thereto to rotate, so that the adjusting disk 44 rotates on the door panel 2 through the lock core 41. When the adjusting disk 44 rotates, since the outer wall of the lock core 41 is rotationally connected to the inner wall of the door panel 2, the lock core 41 remains relatively stable, but the first latch 42 fixedly connected to the lock core 41 rotates with the rotation of the lock core 41 and approaches the door frame 1. At the same time, the pull rod 45 on the outer wall of the adjusting disk 44 also rotates with the rotation of the adjusting disk 44. The first latch 42, the second latch 48 and the third latch 411 are moved to the corresponding locking positions on the door frame 1, and the door panel 2 and the door frame 1 are tightly locked together from different directions, so that the door panel 2 cannot rotate on the door frame 1 through the hinge 3. This multi-point locking method can effectively prevent the displacement of the door in different directions, ensure that the door is closed tightly and firmly, and ensure that the sealing gasket 5 is evenly compressed to achieve a good sealing effect. When the door needs to be opened, the handle 43 is rotated in the opposite direction, and the above components move in the opposite movement order, so that the first latch 42, the second latch 48 and the third latch 411 are disengaged from the locking position on the door frame 1, so that the door panel 2 can be opened on the door frame 1 through the hinge 3.

[0025] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A carbon fiber-based marine weathertight door, characterized in that: include: A door frame (1), the door frame (1) being used for installation and connection with a hull; The inner wall of the door frame (1) is slidably connected to a door panel (2), the door panel (2) being used to shield against wind and rain, and further comprising: A hinge (3), the outer wall of the hinge (3) being fixedly connected to the outer wall of the door frame (1), the hinge (3) being used to connect the door frame (1) and the door panel (2), and the end of the hinge (3) away from the door frame (1) being fixedly connected to the outer wall of the door panel (2); A sealing gasket (5), the outer wall of the sealing gasket (5) being fixedly connected to the inner wall of the door frame (1), the sealing gasket (5) being arranged in a circle along the inner wall of the door frame (1) and being used for contacting and sealing with the door panel (2); A five-point locking mechanism (4), wherein the five-point locking mechanism (4) is arranged outside the door panel (2), and the five-point locking mechanism (4) is used to close and seal the door panel (2); The five-point locking mechanism (4) comprises a lock core (41), the outer wall of the lock core (41) is fixedly connected to a first latch pin (42), the outer wall of the lock core (41) is fixedly connected to an adjustment disk (44), the outer wall of the adjustment disk (44) is fixedly connected to a handle (43), the outer wall of the adjustment disk (44) is provided with a pull rod (45), and the outer wall of the pull rod (45) is symmetrically connected to a connecting plate (47).

2. A carbon fiber-based marine weathertight door according to claim 1, characterized in that: The door frame (1) is connected to the hull by welding. The material of the door frame (1) is EH36 high-strength steel. The profile cross section of the door frame (1) adopts a locally thickened structure, and the contact surface between the door frame (1) and the sealing gasket (5) is designed with a flange structure.

3. A carbon fiber-based marine weathertight door according to claim 1, characterized in that: The door panel (2) is provided with reinforcing ribs inside, the door panel (2) adopts a carbon fiber composite structure and is formed by a prepreg-autoclave process, and the door panel (2) is filled with a polyurethane foam core material.

4. A carbon fiber-based marine weathertight door according to claim 3, characterized in that: The outer wall of the door panel (2) is slidably connected to the outer wall of the sealing gasket (5), and the sealing gasket (5) is made of EPDM rubber.

5. A carbon fiber-based marine weathertight door according to claim 2, characterized in that: The outer wall of the lock core (41) is rotatably connected to the inner wall of the door panel (2), the outer wall of the first latch (42) is slidably connected to the outer wall of the door frame (1), and the outer wall of the pull rod (45) is rotatably connected to the outer wall of the adjustment disk (44).

6. A carbon fiber-based marine weathertight door according to claim 1, characterized in that: The outer wall of the connecting plate (47) is rotatably connected to the bottom plate (46), the outer wall of the connecting plate (47) is fixedly connected to the second latch (48), the outer wall of the connecting plate (47) is rotatably connected to a connecting rod (49), one end of the connecting rod (49) away from the connecting plate (47) is rotatably connected to a third latch (411), and the outer wall of the third latch (411) is rotatably connected to a fixed plate (410).

7. A carbon fiber-based marine weathertight door according to claim 6, characterized in that: The outer walls of the bottom plate (46) and the fixed plate (410) are fixedly connected to the outer wall of the door panel (2); the outer walls of the second latch (48) and the third latch (411) are slidably connected to the outer wall of the door frame (1); and the outer walls of the first latch (42), the second latch (48) and the third latch (411) are rotatably connected to rollers.

8. A carbon fiber-based marine weathertight door according to claim 7, characterized in that: An inner edge of the door frame (1) is provided with an inclined wedge which gradually comes into close contact with the roller.

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