Dual-mode electrically operated watertight hatch cover drive
By introducing a transmission gear and driven gear structure into the electric watertight airlock, combined with a manual drive structure and a motor drive, the problem of not being able to manually open and close when the motor fails is solved, realizing dual-mode drive and ensuring the reliability and flexibility of the airlock.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SANXIAN MARINE EQUIPMENT CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-24
AI Technical Summary
Existing electric watertight dampers cannot be manually opened or closed when the motor fails, resulting in a single drive mode that cannot meet usage requirements.
A transmission gear and driven gear structure was designed, which, combined with a manual drive structure and a motor drive, realizes dual-mode drive. The manual drive structure enables manual opening and closing through a movable rod and a limit block, while the motor drive drives the gate to rotate through gears.
It enables manual opening and closing of the damper even in the event of a motor failure, ensuring the reliability and flexibility of the damper's operation and meeting the needs of various drive modes.
Smart Images
Figure CN224550792U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric watertight airlock technology, specifically a dual-mode drive device for a ship's electric watertight airlock. Background Technology
[0002] An electric watertight airlock is a device that integrates electric drive and watertight sealing functions. It is mainly used in scenarios requiring isolation between water and air, such as ships, tunnels, and industrial pipelines. The electric watertight airlock features a design that prioritizes electric drive while allowing for manual operation, balancing automated control with emergency reliability. Its manual operation function relies on a mechanical clutch, hand crank mechanism, and redundant sealing design to ensure safe opening and closing even in the event of power failure, malfunction, or emergency.
[0003] Chinese utility model patent CN214743384U discloses a watertight airlock, including a valve body and a valve plate. The valve plate is disposed within the valve body. A drive assembly for rotating the valve plate is provided on the outer wall of the valve body. A mounting plate is provided within the valve body. Multiple valve plates are spaced apart and hinged to the side wall of the mounting plate. A retaining ring is provided on the inner wall of the valve body. A sealing ring is provided on the side of the retaining ring facing the valve plate. A mounting bracket is provided inside the retaining ring. A transmission screw is internally threaded into the mounting bracket. A drive motor for rotating the transmission screw is provided on the side wall of the mounting plate. A guide rod is provided on the side of the mounting plate facing the mounting bracket. A guide sleeve for inserting the guide rod is provided on the mounting bracket. This utility model seals the gap between the valve plate and the valve body through the sealing ring, reducing the airflow passing through the gap between the valve plate and the valve body and improving the sealing performance between the valve plate and the valve body.
[0004] However, this utility model can only open and close the windshield electrically during use. When the motor fails, it is inconvenient to open and close it manually. As a result, the driving mode of the windshield is relatively simple and cannot meet the needs of use. Therefore, a dual-mode drive device for ship electric watertight windshield is proposed to solve the problems mentioned above. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a dual-mode drive device for ship electric watertight windbreaks, which has the advantage of convenient manual opening and closing. It solves the problem that existing watertight windbreaks can only be opened and closed electrically, and when the motor fails, it is inconvenient to manually open and close them, resulting in a relatively simple drive mode for the entire windbreak that cannot meet the usage requirements.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a dual-mode drive device for a ship's electric watertight windbreak, comprising a windbreak frame and a first gate plate rotatably connected inside the windbreak frame, wherein two second gate plates are rotatably connected inside the windbreak frame, and a manual drive structure capable of driving the first gate plate to rotate is provided on the top of the windbreak frame.
[0007] The manual drive structure includes a transmission gear and a driven gear that are rotatably connected inside the damper frame. The transmission gear and the driven gear mesh with each other. A rotating plate that can drive the transmission gear to rotate is rotatably connected to the top of the damper frame. A mounting shell is fixedly connected inside the rotating plate. A limit toggle structure is provided inside the mounting shell.
[0008] The limiting toggle structure includes a movable rod that is slidably connected to the top of the mounting housing and extends to its bottom. A baffle is fixedly connected to the outside of the movable rod. A return spring is fixedly connected between the baffle and the mounting housing. A limiting block extending into the airlock frame is fixedly connected to the bottom end of the movable rod.
[0009] Furthermore, a connecting rod is fixedly connected between the transmission gear and the rotating plate, and the connection between the rotating plate and the connecting rod is a threaded connection. The driven gear and the first gate are fixedly connected through the same connecting shaft.
[0010] Furthermore, there are two transmission gears, which mesh with the left and right sides of the driven gear, respectively.
[0011] Furthermore, a handle is fixedly connected to the end of the movable rod away from the limiting block, and a limiting groove adapted to the limiting block is opened on the upper surface of the air gate frame.
[0012] Furthermore, the first gate and the second gate are identical in shape and size, and sealing strips are fixedly connected to opposite sides of both the first gate and the second gate.
[0013] Furthermore, the airlock frame is internally connected to a first rotating rod and two second rotating rods, which are fixedly connected to the first gate plate and the second gate plate, respectively. A connecting piece is rotatably connected between the first rotating rod and the second rotating rod.
[0014] Furthermore, a drive motor is fixedly connected to the top of the airlock frame, and the output shaft of the drive motor meshes with the transmission gear on the right side.
[0015] Furthermore, mounting bases are fixedly connected to both the left and right sides of the air gate frame, and mounting holes are provided inside the mounting bases.
[0016] Compared with the prior art, this utility model provides a dual-mode drive device for ship electric watertight airlocks, which has the following advantages:
[0017] 1. The dual-mode drive device for the ship's electric watertight airlock, by setting up a transmission gear and a driven gear, enables the transmission gear to drive the driven gear to rotate, thereby causing the first gate plate to rotate. Then, by setting up a movable rod and a baffle, the movable plate can drive the limit block to move upward. At this time, the baffle will squeeze the reset spring, which makes it convenient for the operator to manually drive the rotating plate to rotate, thereby manually driving the first gate plate. At the same time, by setting up a drive motor, the dual-mode drive effect is realized, which greatly ensures the operation of the entire watertight airlock.
[0018] 2. The dual-mode drive device for the ship's electric watertight airlock uses a first rotating rod and two second rotating rods, connected by a connecting plate. When the first rotating rod rotates, it drives the connecting plate to swing, which in turn drives the two second rotating rods to rotate simultaneously. This allows for simultaneous rotation of the first gate and the two second gates, achieving synchronous control. This solves the problem that existing watertight airlocks can only be opened and closed electrically, and when the motor fails, manual operation is inconvenient, resulting in a limited drive mode that cannot meet usage requirements. Attached Figure Description
[0019] Figure 1 This is a three-dimensional view of the structure of this utility model;
[0020] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0021] Figure 3 This utility model Figure 2 A magnified structural diagram of structure A is shown below;
[0022] Figure 4 This is a top view of the structure of the first rotating rod of this utility model.
[0023] In the diagram: 1. Air damper frame; 2. First damper plate; 3. Second damper plate; 4. Transmission gear; 5. Driven gear; 6. Rotating plate; 7. Mounting housing; 8. Movable rod; 9. Baffle; 10. Return spring; 11. Limit block; 12. Handle; 13. Limit groove; 14. Sealing strip; 15. First rotating rod; 16. Second rotating rod; 17. Connecting piece; 18. Drive motor; 19. Mounting base. Detailed Implementation
[0024] 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.
[0025] Please see Figures 1 to 3 The dual-mode drive device for a ship's electric watertight windbreak in this embodiment includes a windbreak frame 1 and a first gate plate 2 rotatably connected inside the windbreak frame 1. Two second gate plates 3 are rotatably connected inside the windbreak frame 1. A manual drive structure capable of driving the first gate plate 2 to rotate is provided at the top of the windbreak frame 1. The manual drive structure includes a transmission gear 4 and a driven gear 5 rotatably connected inside the windbreak frame 1, respectively. The transmission gear 4 and the driven gear 5 mesh with each other. A rotating plate 6 capable of driving the transmission gear 4 to rotate is rotatably connected at the top of the windbreak frame 1. A mounting shell 7 is fixedly connected inside the rotating plate 6. A limit toggle structure is provided inside the mounting shell 7. The limit toggle structure includes a movable rod 8 slidably connected to the top of the mounting shell 7 and extending to its bottom. A baffle 9 is fixedly connected to the outside of the movable rod 8. A return spring 10 is fixedly connected between the baffle 9 and the mounting shell 7. A limit block 11 extending into the windbreak frame 1 is fixedly connected to the bottom end of the movable rod 8.
[0026] Specifically, a connecting rod is fixedly connected between the transmission gear 4 and the rotating plate 6. The connection between the rotating plate 6 and the connecting rod is a threaded connection. The driven gear 5 and the first gate plate 2 are fixedly connected through the same connecting shaft. There are two transmission gears 4, and the two transmission gears 4 mesh with the left and right sides of the driven gear 5 respectively.
[0027] It should be noted that the end of the movable rod 8 away from the limit block 11 is fixedly connected to a handle 12, and the upper surface of the wind gate frame 1 is provided with a limit groove 13 that is adapted to the limit block 11. There are two limit grooves 13. By setting two limit grooves 13, it can be ensured that the rotating plate 6 rotates 90° to avoid excessive opening and closing.
[0028] Please see Figure 1 and Figure 4 In this embodiment, the first gate plate 2 and the second gate plate 3 are the same in shape and size. Sealing strips 14 are fixedly connected to the opposite side of the first gate plate 2 and the second gate plate 3. The inside of the air gate frame 1 is rotatably connected to a first rotating rod 15 and two second rotating rods 16. The first rotating rod 15 and the second rotating rod 16 are fixedly connected to the first gate plate 2 and the second gate plate 3 respectively. A connecting piece 17 is rotatably connected between the first rotating rod 15 and the second rotating rod 16.
[0029] Specifically, by setting a first rotating rod 15 and two second rotating rods 16, and by setting a connecting piece 17, when the first rotating rod 15 rotates, it can drive the connecting piece 17 to swing. At this time, the connecting piece 17 can simultaneously drive the two second rotating rods 16 to rotate, thereby facilitating the simultaneous rotation of the first gate 2 and the two second gates 3, achieving the effect of synchronous control.
[0030] Please see Figure 1 and Figure 2 In this embodiment, a drive motor 18 is fixedly connected to the top of the air damper frame 1. The output shaft of the drive motor 18 meshes with the right transmission gear 4. Mounting seats 19 are fixedly connected to both the left and right sides of the air damper frame 1. Mounting holes are provided inside the mounting seats 19.
[0031] Specifically, when the drive motor 18 is needed for driving, the rotating plate 6 is disassembled to avoid motion interference between the drive motor 18 and the rotating plate 6. At the same time, the drive motor 18 is a DC motor, which can ensure that its drive shaft rotates normally when it stops running, without generating large resistance.
[0032] The working principle of the above embodiments is as follows:
[0033] First, the staff fixes the airlock frame 1 in a suitable position using the mounting base 19. Then, the drive motor 18 is started to drive the transmission gear 4 and the driven gear 5 to rotate, thereby driving the first gate plate 2 to rotate. At this time, due to the action of the first rotating rod 15 and the connecting piece 17, the two second gate plates 3 can be driven to rotate simultaneously, achieving the opening and closing effect. When the drive motor 18 fails, the rotating plate 6 can be installed with the connecting rod. At this time, the movable rod 8 is pulled upward, which simultaneously drives the rotating plate 6 to rotate 90°. Then, the limiting block 11 and the limiting groove 13 are used to limit the rotating plate 6, thereby completing the manual opening and closing effect of the first gate plate 2.
[0034] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.
[0035] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0037] 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 dual-mode drive device for a ship's electric watertight airlock, comprising an airlock frame (1) and a first gate plate (2) rotatably connected inside the airlock frame (1), characterized in that: The air damper frame (1) has two second gate plates (3) rotatably connected inside, and the top of the air damper frame (1) is provided with a manual drive structure that can drive the first gate plate (2) to rotate. The manual drive structure includes a transmission gear (4) and a driven gear (5) rotatably connected inside the damper frame (1), the transmission gear (4) and the driven gear (5) meshing with each other, a rotating plate (6) rotatably connected to the top of the damper frame (1) that can drive the transmission gear (4) to rotate, a mounting shell (7) fixedly connected inside the rotating plate (6), and a limit toggle structure provided inside the mounting shell (7); The limiting toggle structure includes a movable rod (8) that is slidably connected to the top of the mounting housing (7) and extends to its bottom. A baffle (9) is fixedly connected to the outside of the movable rod (8). A return spring (10) is fixedly connected between the baffle (9) and the mounting housing (7). A limiting block (11) extending into the windshield frame (1) is fixedly connected to the bottom end of the movable rod (8).
2. The dual-mode drive device for a ship's electric watertight airlock according to claim 1, characterized in that: A connecting rod is fixedly connected between the transmission gear (4) and the rotating plate (6). The connection between the rotating plate (6) and the connecting rod is a threaded connection. The driven gear (5) and the first gate plate (2) are fixedly connected through the same connecting shaft.
3. The dual-mode drive device for a ship's electric watertight airlock according to claim 1, characterized in that: The number of transmission gears (4) is two, and the two transmission gears (4) mesh with the left and right sides of the driven gear (5) respectively.
4. The dual-mode drive device for a ship's electric watertight airlock according to claim 1, characterized in that: The movable rod (8) is fixedly connected to a handle (12) at one end away from the limiting block (11), and a limiting groove (13) adapted to the limiting block (11) is provided on the upper surface of the wind gate frame (1).
5. The dual-mode drive device for a ship's electric watertight airlock according to claim 1, characterized in that: The first gate (2) and the second gate (3) are the same in shape and size, and sealing strips (14) are fixedly connected to the opposite side of the first gate (2) and the second gate (3).
6. The dual-mode drive device for a ship's electric watertight airlock according to claim 1, characterized in that: The wind gate frame (1) is rotatably connected to a first rotating rod (15) and two second rotating rods (16). The first rotating rod (15) and the second rotating rod (16) are fixedly connected to the first gate plate (2) and the second gate plate (3) respectively. A connecting piece (17) is rotatably connected between the first rotating rod (15) and the second rotating rod (16).
7. The dual-mode drive device for a ship's electric watertight airlock according to claim 1, characterized in that: A drive motor (18) is fixedly connected to the top of the wind gate frame (1), and the output shaft of the drive motor (18) meshes with the right-side transmission gear (4).
8. The dual-mode drive device for a ship's electric watertight airlock according to claim 1, characterized in that: The wind gate frame (1) is fixedly connected to mounting bases (19) on both the left and right sides, and the mounting bases (19) have mounting holes inside.