High-strength watertight chamber door for cabin
By adding multiple movable pins to the watertight doors of the ship's cabin and utilizing linkage transmission and an all-around sealing structure, the problems of insufficient locking strength and abnormal noise were solved, thus achieving a high-strength and watertight design for the ship's cabin watertight doors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIHAI WU SHIPBUILDING MANUFACTURING CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional watertight doors for ship cabins have insufficient locking strength and are prone to making abnormal noises after long-term use, failing to meet the requirements of the International Convention for the Safety of Life at Sea and classification society regulations.
Based on traditional locks, multiple movable pins are added to the top, right, and bottom sides of the hatch. Through linkage transmission, all pins are simultaneously assembled to the hatch frame, enhancing the hatch structure, and the hatch is sealed and wrapped by the hatch frame on all four sides.
The locking strength of the hatches has been improved, abnormal noises during navigation have been reduced, good watertightness has been ensured, and the requirements of the International Convention for the Safety of Life at Sea and classification society regulations have been met.
Smart Images
Figure CN224146136U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shipbuilding technology, specifically a high-strength watertight door for ship cabins. Background Technology
[0002] Watertight doors in ship compartments are critical equipment for ensuring the safety of ship navigation and must meet the requirements of the International Convention for the Safety of Life at Sea (SOLAS) and classification society regulations regarding watertightness and structural strength.
[0003] Traditional watertight doors in ship cabins typically employ a single lock or a single lock plus a single-sided bolt locking method. This means that initial locking is achieved through a lock on one side of the door (such as a rotary lock or mortise lock), and then a single set of movable bolts on the door edge engages with a hole in the door frame to form an auxiliary seal. However, existing technology has the following drawbacks:
[0004] Insufficient locking strength: Relying on only a single-sided lock and a single set of bolts, when the pressure difference between the inside and outside of the compartment is large (such as when the ship is breached and flooded or when waves are impacted), the door is prone to deformation due to uneven local stress, leading to sealing failure.
[0005] Long-term use causes abnormal noises: After long-term friction between the lock cylinder or bolt and the door frame socket, the metal surface is prone to wear and burrs or gaps. When the door is fixed by only one lock cylinder or one lock cylinder plus one bolt, the door is more likely to make abnormal noises when the ship is sailing due to the limited number of fixing points. Utility Model Content
[0006] The technical problem to be solved by this utility model is to provide a high-strength watertight door for ship cabins that has higher locking strength and is less prone to abnormal noise after long-term use.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A high-strength watertight compartment door for ship cabins includes a door frame fixed to the hull and a door assembly mounted on the door frame on the left side via multiple hinges.
[0009] The hatch assembly includes a front hatch located on the front side, a rear hatch that is detachably installed behind the front hatch, and a lock that is fixedly installed between the front hatch and the rear hatch.
[0010] Multiple movable pins are installed between the front and rear hatches, distributed on the top, right, and bottom sides of the rear hatch. Each pair of adjacent movable pins is synchronously driven by a connecting rod. All movable pins can be simultaneously assembled onto the hatch frame under the drive of the connecting rod, thereby strengthening the hatch structure.
[0011] By adopting the above solution, this solution adds multiple movable pins distributed on the top, right, and bottom sides of the hatch, based on the traditional method of using only locks to lock the hatch. All movable pins can be simultaneously assembled into the hatch frame under the transmission of the linkage, thereby strengthening the hatch structure and making the hatch stronger after closing. In this way, there are more fixed points for the hatch, making it less likely for the hatch to make abnormal noises when the ship is sailing.
[0012] In a preferred embodiment of a high-strength watertight compartment door for ship cabins, the movable pins include a movable pin one located at the middle of the right side of the aft hatch, a movable pin two located at the top of the right side of the aft hatch, a movable pin three located at the bottom of the right side of the aft hatch, a movable pin four located at the middle of the top side of the aft hatch, and a movable pin five located at the middle of the bottom side of the aft hatch. Each movable pin is connected to a control socket rotatably mounted on the aft hatch.
[0013] By adopting the above scheme, in order to increase the number of fixing points for the hatch assembly, five movable latches are installed on its top, right, and bottom sides; three of them are on the right side, and one each on the top and bottom sides, thereby improving the locking strength of the hatch assembly.
[0014] In a preferred embodiment of a high-strength watertight compartment door for ship cabins, the control socket includes a control socket one fixedly connected to a movable pin one, a control socket two fixedly connected to a movable pin two, a control socket three fixedly connected to a movable pin three, a control socket four fixedly connected to a movable pin four, and a control socket five fixedly connected to a movable pin five.
[0015] By adopting the above scheme, in order to facilitate the control of the movement of the movable pins, the five movable pins are connected to the control socket one by one, and the movement of the movable pins is achieved by rotating the control pins.
[0016] In a preferred embodiment of a high-strength watertight compartment door for ship cabins, the linkage includes an active linkage that simultaneously rotatably connects control socket one, control socket two, and control socket three; a driven linkage one that simultaneously rotatably connects control socket two and control socket four; and a driven linkage two that simultaneously rotatably connects control socket three and control socket five; wherein, the surface of the movable pin is also fitted with a rubber sleeve.
[0017] By adopting the above scheme, in order to facilitate the simultaneous control of the movement of five movable pins, the active linkage is activated, and under the transmission of the two driven linkages, the five movable pins can be simultaneously inserted into the door frame.
[0018] In a preferred embodiment of a high-strength watertight compartment door for ship cabins, the control socket is also connected to a first pin rocker arm located in front of the front hatch and a second pin rocker arm located behind the rear hatch, with the first pin rocker arm and the second pin rocker arm being concentrically connected.
[0019] By adopting the above scheme, in order to facilitate the operation of the active linkage, at the front hatch, the control socket can be rotated by rotating the first pin rocker arm, which in turn drives the active linkage to move, so that five movable pins can be simultaneously inserted into the door frame; at the rear hatch, the control socket can be rotated by rotating the second pin rocker arm, which in turn drives the active linkage to move, so that five movable pins can be simultaneously inserted into the door frame.
[0020] In a preferred embodiment of a high-strength watertight compartment door for ship cabins, a tempered glass panel for visibility is also installed on the aft hatch.
[0021] By adopting the above solution, observation can be made through a tempered glass panel for easy viewing of the situation inside and outside the cabin.
[0022] In a preferred embodiment of a high-strength watertight compartment door for ship cabins, the door frame protrudes from the front and rear sides of the cabin body, and the door frame can completely seal and enclose the top, bottom, left and right sides of the door assembly.
[0023] By adopting the above solution, in order to ensure that the hatch assembly has good water tightness, the hatch frame is used to completely seal and wrap all four sides of the hatch assembly. The entire hatch assembly is very thick, which can effectively ensure that it has good water tightness.
[0024] The beneficial effects of this utility model are:
[0025] 1. This solution adds five movable pins distributed on the top, right and bottom sides of the hatch, based on the traditional method of using only locks to lock the hatch. All movable pins can be simultaneously assembled into the hatch frame under the transmission of the linkage, thereby strengthening the hatch structure and making the hatch stronger after closing. In this way, there are more fixed points for the hatch, making it less likely for the hatch to make abnormal noises when the ship is sailing.
[0026] 2. To ensure the hatch assembly has good water tightness, the hatch frame is used to completely seal and wrap all four sides of the hatch assembly. The entire hatch assembly is very thick, which can effectively ensure its good water tightness. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 To give a clear view of the three-dimensional structure of the watertight compartment door in a high-strength ship compartment when closed. Figure 1 ;
[0029] Figure 2 The rear view shows the three-dimensional structure of the watertight compartment door in the rear when closed. Figure 1 ;
[0030] Figure 3 To provide a clear view of the three-dimensional structure of the watertight compartment door in a high-strength ship's cabin when it is open;
[0031] Figure 4 for Figure 1 Three-dimensional structure of the middle cabin door assembly Figure 1 ;
[0032] Figure 5 for Figure 1 Three-dimensional structure of the middle cabin door assembly Figure 2 ;
[0033] Figure 6 To showcase Figure 4 Location distribution diagram of various internal structures;
[0034] Figure 7 To showcase Figure 5 Location diagram of the five movable pins in the middle;
[0035] Markings in the diagram: 1-Hybrid; 2-Door frame; 3-Hinge; 4-Door assembly; 401-Front hatch cover; 402-Rear hatch cover; 403-Lock; 404-Moving pin one; 405-Moving pin two; 406-Moving pin three; 407-Moving pin four; 408-Moving pin five; 409-Control socket one; 410-Control socket two; 411-Control socket three; 412-Control socket four; 413-Control socket five; 414-Active linkage; 415-Driven linkage one; 416-Driven linkage two; 417-Pin rocker arm one; 418-Pin rocker arm two; 419-Tempered glass. Detailed Implementation
[0036] 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.
[0037] like Figures 1 to 7As shown, a high-strength watertight compartment door for use in ship cabins is provided. Specifically, it includes a door frame 2 fixed to the hull 1 and a door assembly 4 rotatably mounted on the door frame 2 on the left side via multiple hinges 3. The door assembly 4 includes a front hatch 401 located on the front side, a rear hatch 402 detachably mounted on the rear side of the front hatch 401, and a lock 403 fixedly mounted between the front hatch 401 and the rear hatch 402. Five movable pins are also installed between the front hatch 401 and the rear hatch 402, simultaneously distributed on the top side, right side, and bottom side of the rear hatch 402. Each pair of adjacent movable pins are synchronously driven by a connecting rod. All movable pins can be simultaneously assembled onto the door frame 2 under the transmission of the connecting rod, thereby strengthening the door structure. This solution adds multiple movable pins distributed on the top, right, and bottom sides of the hatch, based on the traditional method of using only lock 403 to lock the hatch. All movable pins can be simultaneously assembled to the hatch frame 2 under the transmission of the linkage, thereby strengthening the hatch structure and making the hatch stronger after closing. As a result, there are more fixed points for the hatch, making it less likely for the hatch to make abnormal noises when the ship is sailing.
[0038] like Figure 7 As shown, the movable pins include movable pin one 404 located in the middle of the right side of the rear hatch 402, movable pin two 405 located at the top of the right side of the rear hatch 402, movable pin three 406 located at the bottom of the right side of the rear hatch 402, movable pin four 407 located in the middle of the top side of the rear hatch 402, and movable pin five 408 located in the middle of the bottom side of the rear hatch 402. Each movable pin is connected to a control socket rotatably mounted on the rear hatch 402. To increase the number of fixing points for the hatch assembly 4, five movable pins are installed on its top, right, and bottom sides; three of which are on the right side, and one each on the top and bottom sides, thereby improving the locking strength of the hatch assembly 4.
[0039] like Figure 6 As shown, the control socket includes control socket 409 fixedly connected to movable pin 404, control socket 410 fixedly connected to movable pin 405, control socket 411 fixedly connected to movable pin 406, control socket 412 fixedly connected to movable pin 407, and control socket 413 fixedly connected to movable pin 408. To facilitate control of the movement of the movable pins, the five movable pins are individually connected to the control sockets, and the movement of the movable pins is achieved by rotating the control pins.
[0040] like Figure 6As shown, the linkage includes an active linkage 414 that rotatably connects control socket 1 409, control socket 2 410, and control socket 3 411; a driven linkage 1 415 that rotatably connects control socket 2 and control socket 4; and a driven linkage 2 416 that rotatably connects control socket 3 and control socket 5. The surface of the movable pin is fitted with a rubber sleeve, which improves the wear resistance of the movable pin and prevents it from moving after insertion. To facilitate simultaneous control of the five movable pins, by actuating the active linkage 414, and under the transmission of the two driven linkages, all five movable pins can be simultaneously inserted into the door frame 2.
[0041] like Figure 6 As shown, the control socket 409 is also connected to a latch rocker 417 located in front of the front hatch 401 and a latch rocker 418 located behind the rear hatch 402. The latch rocker 417 and the latch rocker 418 are concentrically connected. To facilitate the operation of the active linkage 414, at the front hatch 401, the control socket 409 can be rotated by rotating the latch rocker 417, thereby driving the active linkage 414 to move, so that five movable latches can be simultaneously inserted into the door frame 2; at the rear hatch 402, the control socket 409 can be rotated by rotating the latch rocker 418, thereby driving the active linkage 414 to move, so that five movable latches can be simultaneously inserted into the door frame 2.
[0042] like Figures 4 to 7 As shown, a tempered glass panel 419 with a thickness of 8-10mm is also installed on the aft hatch 402. This panel allows for easy observation of the interior and exterior of the cabin.
[0043] like Figures 1 to 2 As shown, the door frame 2 protrudes from the front and rear sides of the hull 1, and the door frame 2 can completely seal and enclose the top, bottom, left, and right sides of the door assembly 4. In order to ensure that the door assembly 4 has good water tightness, the door frame 2 completely seals and encloses all four sides of the door assembly 4. The entire door assembly 4 is very thick, which can effectively ensure its good water tightness.
[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A high-strength watertight compartment door for ship cabins, comprising a door frame fixed to the hull and a door assembly mounted on the door frame on the left side via multiple hinges; The hatch assembly includes a front hatch located on the front side, a rear hatch detachably installed behind the front hatch, and a lock fixedly installed between the front hatch and the rear hatch. characterized in that Multiple movable pins are also installed between the front and rear hatches, distributed simultaneously on the top, right, and bottom sides of the rear hatch. Each pair of adjacent movable pins is synchronously driven by a connecting rod. All movable pins can be simultaneously assembled onto the hatch frame under the drive of the connecting rod, thereby strengthening the hatch structure.
2. The high-strength, water-tight door for shipboard use of claim 1, wherein: The movable pins include movable pin one located in the middle of the right side of the rear hatch, movable pin two located at the top of the right side of the rear hatch, movable pin three located at the bottom of the right side of the rear hatch, movable pin four located in the middle of the top side of the rear hatch, and movable pin five located in the middle of the bottom side of the rear hatch. Each movable pin is connected to a control socket that is rotatably mounted on the rear hatch.
3. The high-strength, water-tight door for shipboard use of claim 2, wherein: The control socket includes control socket one fixedly connected to movable pin one, control socket two fixedly connected to movable pin two, control socket three fixedly connected to movable pin three, control socket four fixedly connected to movable pin four, and control socket five fixedly connected to movable pin five.
4. The high-strength, water-tight door for shipboard use of claim 3, wherein: The linkage includes an active linkage that simultaneously rotatably connects control socket one, control socket two, and control socket three; a driven linkage one that simultaneously rotatably connects control socket two and control socket four; and a driven linkage two that simultaneously rotatably connects control socket three and control socket five.
5. The high-strength, water-tight door for shipboard use of claim 4, wherein: The surface of the movable pin is also fitted with a rubber sleeve.
6. The high-strength, water-tight door for shipboard use of claim 5, wherein: The control socket is also connected to a first pin rocker arm located in front of the front hatch and a second pin rocker arm located behind the rear hatch, with the first pin rocker arm and the second pin rocker arm being concentrically connected.
7. The high-strength, water-tight door for shipboard use of claim 1, wherein: The rear hatch is also fitted with a tempered glass panel for visibility.
8. The high-strength, water-tight door for shipboard use of any of claims 1-7, wherein: The door frame protrudes from the front and rear sides of the cabin, and the door frame can completely seal and enclose the top, bottom, left and right sides of the door assembly.