A watertight hatch cover anti-deformation structure

Abstract

The utility model provides a watertight hatch cover anti -deformation structure, including hatch cover body and apron, one side fixed connection has rotary frame in the hatch cover body top, the rotary frame's inside swing joint has the connecting frame through the pivot, the connecting frame one side welds and fixedly has apron, compared with prior art, the utility model has the following beneficial effect: when apron rotates and opens, one side's drive gear also will carry out rotation, and will engage with the bottom's driven gear, drives both ends's transmission gear to rotate many rounds, transmission gear can drive rack rod to move longer distance, when rack rod moves, will drive end's connecting plate and buffer pad also move, when apron completely overturns and opens, will contact with buffer pad, and the buffer pad of rubber material will buffer apron, and damper and spring a also can absorb impact force.

Description

Technical Field

[0001] This utility model is a deformation-resistant structure for a watertight hatch cover, belonging to the field of watertight hatch covers. Background Technology

[0002] The main function of watertight hatch covers is to ensure the watertightness of ship hatches, preventing seawater and rainwater from entering the hatches and protecting the safety of cargo, equipment, and personnel inside. For example, in rough sea conditions, they can effectively block the impact of waves and prevent seawater from flowing back in.

[0003] In the existing technology, watertight hatch covers are used to seal the hatch openings of ship cabins. When they are opened, the top cover plate is flipped up. However, the cover plate is made of metal and is quite heavy. Therefore, when workers push the cover plate to rotate and open it, they need to apply a lot of force. When the workers are too weak to continue pushing the cover plate up, the cover plate will automatically move down under the action of gravity, which will put pressure on the workers and threaten their personal safety. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a deformation-resistant structure for a watertight hatch cover to solve the problems mentioned in the background art. This utility model can rotate in one direction when the watertight hatch cover is opened to prevent the cover from causing pressure on the staff.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a watertight hatch cover anti-deformation structure, comprising a hatch cover body and a cover plate, wherein a rotating frame is fixedly connected to one side of the top of the hatch cover body, a connecting frame is movably connected to the inner side of the rotating frame via a rotating shaft, a cover plate is welded and fixed to one side of the connecting frame, and a limit mechanism is provided at the bottom center of the cover plate.

[0006] A transmission rod is provided on one side of the hatch cover body. The outer side of the transmission rod is movably connected to the hatch cover body via a bearing. Transmission mechanisms are provided at both ends of the transmission rod. A ratchet is fixed in the middle of the transmission rod. A limit rod is provided on one side of the ratchet. A protective curtain is fixed to the end of the limit rod near the ratchet. One side of the protective curtain is bonded to the hatch cover body. A spring b is sleeved on the outer side of the limit rod. A fixing mechanism is provided at one end of the limit rod.

[0007] Furthermore, the transmission mechanism includes a transmission gear fixed to both ends of the transmission rod, a rack connected to the outer side of the transmission gear, a buffer mechanism at one end of the rack, a support mechanism at the bottom of the rack, a driven gear welded to the outer side of the transmission rod, a drive gear connected to the outer side of the driven gear, and the two sides of the drive gear connected to the connecting frame. The buffer mechanism includes a connecting plate fixed to the end of the rack, multiple dampers mounted on the top of the connecting plate, a buffer pad connected to the top of the damper, and a spring a sleeved on the outer side of the damper.

[0008] Furthermore, the top of the buffer pad is arc-shaped, the rotating frame is L-shaped, the fixing mechanism includes a rotating block that is movably connected to one end of the limiting rod via a damping rotating shaft, a fixing block is welded and fixed to the outside of the rotating block, a fixing plate is welded and fixed to the inside of the hatch cover body, and a limiting groove matching the fixing block is opened on the top of the fixing plate.

[0009] Furthermore, the support mechanism includes a telescopic rod that is movably connected to the bottom of the rack via a rotating shaft. One end of the telescopic rod is movably connected to a fixed frame via the rotating shaft, and one side of the fixed frame is welded and fixed to the hatch cover body.

[0010] Furthermore, a sealing ring is adhered around the bottom of the cover plate, and the outer side of the sealing ring abuts against the hatch cover body.

[0011] Furthermore, the limiting mechanism includes a connecting shaft that is movably connected to the inside of the cover plate via a bearing. A handle a is slidably connected to the top of the connecting shaft. A locking mechanism is provided inside the handle a. A bevel gear a is fixed to the bottom of the handle a. A handle b is welded and fixed to the bottom of the bevel gear a. Multiple sets of bevel gears b mesh with the outer side of the bevel gear a. A threaded rod is connected and fixed to one side of the bevel gear b. One end of the threaded rod is movably connected to the cover plate via a bearing. The other end of the threaded rod is threadedly connected to an insert rod. The outer side of the insert rod is slidably connected to the cover plate.

[0012] Furthermore, the engaging mechanism includes a protrusion welded and fixed to the top of the connecting shaft, and the inner side of the handle a has a groove that matches the protrusion.

[0013] The beneficial effects of this utility model are as follows: In this watertight hatch cover anti-deformation structure, when the cover is rotated open, the drive gear on one side also rotates and meshes with the driven gear at the bottom, driving the transmission gears at both ends to rotate multiple times. The transmission gears can drive the rack rod to move a considerable distance. As the rack rod moves, it also drives the connecting plate and buffer pad at the end to move. When the cover is fully flipped open, it contacts the buffer pad. The rubber buffer pad cushions the cover, while the damper and spring A absorb the impact force. When the transmission rod… When the cover is rotated, it will also rotate. At this time, the ratchet will contact the limit rod through the inclined surface of the outer ratchet tooth, thereby pushing the limit rod to move. The limit rod will compress the outer spring, so the cover can rotate continuously when it is open. When the cover stops rotating, the cover will return to its original position, thereby driving the ratchet to reverse. However, at this time, the ratchet will engage with the limit rod through the straight surface of the outer ratchet tooth, thereby limiting the ratchet and the cover to prevent pressure on the workers. In this way, the above operation can facilitate the deformation protection of the watertight hatch cover. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a three-dimensional structural diagram of a watertight hatch cover anti-deformation structure according to the present invention;

[0016] Figure 2 This is a three-dimensional cross-sectional schematic diagram of the hatch cover body in the anti-deformation structure of the watertight hatch cover of this utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the buffer pad in the anti-deformation structure of a watertight hatch cover according to this utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of handle a in the anti-deformation structure of a watertight hatch cover of this utility model;

[0019] Figure 5 This is an enlarged schematic diagram of A in the anti-deformation structure of a watertight hatch cover of this utility model;

[0020] Figure 6 This is a three-dimensional schematic diagram of the ratchet in the anti-deformation structure of a watertight hatch cover according to this utility model;

[0021] Figure 7 This is an enlarged schematic diagram of B in the anti-deformation structure of a watertight hatch cover of this utility model.

[0022] In the diagram: 1-Hatch cover body, 2-Rotating frame, 3-Connecting frame, 4-Cover plate, 5-Sealing ring, 6-Drive gear, 7-Driven gear, 8-Transmission rod, 9-Transmission gear, 10-Rack and pinion, 11-Connecting plate, 12-Damper, 13-Buffer pad, 14-Spring a, 15-Telescopic rod, 16-Fixed frame, 17-Connecting shaft, 18-Handle a, 19-Bevel gear a, 20-Handle b, 21-Bevel gear b, 22-Threaded rod, 23-Insertion rod, 24-Protrusion, 25-Slot, 26-Ratchet, 27-Limiting rod, 28-Protective curtain, 29-Spring b, 30-Rotating block, 31-Fixed plate, 32-Limiting groove. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please see Figures 1-2 This utility model provides a technical solution: a watertight hatch cover anti-deformation structure, including a hatch cover body 1 and a cover plate 4. A rotating frame 2 is fixedly connected to one side of the top of the hatch cover body 1. A connecting frame 3 is movably connected to the inner side of the rotating frame 2 via a rotating shaft. A cover plate 4 is welded and fixed to one side of the connecting frame 3. A limit mechanism is provided at the bottom center of the cover plate 4. The feature is that...

[0025] A transmission rod 8 is provided on one side of the hatch cover body 1. The outer side of the transmission rod 8 is movably connected to the hatch cover body 1 via a bearing. Transmission mechanisms are provided at both ends of the transmission rod 8. A ratchet 26 is fixed in the middle of the transmission rod 8. A limit rod 27 is provided on one side of the ratchet 26. A protective curtain 28 is fixed to the end of the limit rod 27 near the ratchet 26. One side of the protective curtain 28 is bonded to the hatch cover body 1. A spring b28 is sleeved on the outer side of the limit rod 27. A fixing mechanism is provided at one end of the limit rod 27. The transmission mechanism includes components connected to both ends of the transmission rod 8. A fixed transmission gear 9 is connected to a rack 10 on its outer side. A buffer mechanism is provided at one end of the rack 10, and a support mechanism is provided at the bottom of the rack 10. A driven gear 7 is welded and fixed to the outer side of the transmission rod 8. A drive gear 6 is connected to the outer side of the driven gear 7. Both sides of the drive gear 6 are connected and fixed to the connecting frame 3. The buffer mechanism includes a connecting plate 11 fixed to the end of the rack 10. Multiple dampers 12 are installed on the top of the connecting plate 11, and a buffer pad is connected and fixed to the top of the dampers 12. 13. A spring a14 is sleeved on the outer side of the damper 12; the top of the buffer pad 13 is arc-shaped, the rotating frame 2 is L-shaped, and the fixing mechanism includes a rotating block 30 that is movably connected to one end of the limiting rod 27 via a damping rotating shaft. A fixing block is welded and fixed to the outer side of the rotating block 30. A fixing plate 31 is welded and fixed to the inside of the hatch cover body 1. The top of the fixing plate 31 has a limiting groove 32 that matches the fixing block. The support mechanism includes a telescopic rod 15 that is movably connected to the bottom of the rack 10 via a rotating shaft. One end is movably connected to a fixed frame 16 via a rotating shaft. One side of the fixed frame 16 is welded and fixed to the hatch cover body 1. The fixed frame 16 and the telescopic rod 15 form a rotating structure via the rotating shaft. A sealing ring 5 is glued around the bottom of the cover plate 4. The outer side of the sealing ring 5 abuts against the hatch cover body 1. The damper 12 can prevent the spring a14 from continuously extending and contracting, thereby causing the cover plate 4 to shake. Through the cooperation of multiple sets of gears, the power of the cover plate 4 when rotating can be transmitted to the connecting plate 11 and push the connecting plate 11 to move a sufficient distance.

[0026] Please see Figures 1-5The limiting mechanism includes a connecting shaft 17 that is movably connected to the inside of the cover plate 4 via a bearing. A handle a18 is slidably connected to the top of the connecting shaft 17. A locking mechanism is provided inside the handle a18. A bevel gear a19 is fixed to the bottom of the handle a18. A handle b20 is welded to the bottom of the bevel gear a19. Multiple sets of bevel gears b21 mesh with the outer side of the bevel gear a19. A threaded rod 22 is fixed to one side of the bevel gear b21. One end of the threaded rod 22 is movably connected to the cover plate 4 via a bearing. The other end of the threaded rod 22 is threadedly connected to an insertion rod 23. The outer side of the insertion rod 23 is connected to the cover plate. 4. Sliding connection: The inner side of the hatch cover body 1 is provided with a locking groove that matches the insertion rod 23. The handle a18 and the connecting shaft 17 form a sliding structure. The bevel gear a19 and the bevel gear b21 form a meshing transmission structure. The threaded rod 22 and the insertion rod 23 form a threaded transmission structure. The locking mechanism includes a protrusion 24 that is welded and fixed to the top of the connecting shaft 17. The inner side of the handle a18 is provided with a locking groove 25 that matches the protrusion 24. Through the mutual cooperation of multiple sets of bevel gears, multiple sets of insertion rods 23 can be driven to move synchronously and be inserted into the slot at the top of the hatch cover body 1 to complete the fixing of the cover plate 4.

[0027] Please see Figures 1-3In specific implementation, the watertight hatch cover anti-deformation structure, to prevent contact with other objects and impact deformation when opened, uses two sets of drive gears 6 on one side of the cover plate 4. When the cover plate 4 is rotated open, the drive gear 6 on one side also rotates and meshes with the driven gear 7 at the bottom. Since the driven gear 7 has fewer teeth than the drive gear 6, it rotates multiple times, driving the transmission gears 9 at both ends to rotate multiple times via the transmission rod 8. The transmission gears 9 have more teeth than the driven gear 7, so when meshing with the rack 10, they can move the rack 10 a longer distance. When the rack 10 moves, it also drives the connecting plate 11 and the buffer pad 13 at the end to move. When the cover plate 4 is fully opened, it will contact the buffer pad 13. The rubber buffer pad 13 will cushion the cover plate 4, while the damper 12 and spring a14 will absorb the impact force. To prevent the cover plate 4 from sliding down and causing pressure on the worker when the worker is unable to continue pushing it due to physical exhaustion, a set of ratchet 26 is installed on the outside of the transmission rod 8. When the transmission rod 8 rotates, it will drive the ratchet 26 to rotate as well. At this time, the ratchet 26 will contact the limit rod 27 through the inclined surface of the outer ratchet teeth, thereby pushing the limit rod 27 to move. The limit rod 27 will compress the outer spring 29. In this way, the cover plate 4 can rotate continuously when it is open. When it stops... When the cover plate 4 is stopped from rotating, it will reset, causing the ratchet 26 to reverse. However, at this time, the ratchet 26 will engage with the limiting rod through the straight surface of the outer ratchet teeth, thus limiting the ratchet 26 and the cover plate 4. The cover plate 4 cannot reset at this time, which can prevent pressure on the workers. When it is necessary to reset the cover plate 4, the rotating block 30 can be pulled to disengage the limiting rod 27 from the ratchet 26. Then, the rotating block 30 is rotated to engage the fixing block on its outer side with the limiting groove 32 in the fixing plate 31, so that the limiting rod 27 cannot reset. Then the cover plate 4 can be rotated to close. The protective curtain outside the limiting rod 27 is a waterproof roll material, which can prevent water vapor from passing through the gap between the limiting rod 27 and the hatch cover body 1. The gap enters the hatch cover body 1. When the connecting plate 11 moves, it can drive the telescopic rod 15 to rotate. Since one end of the telescopic rod 15 is movably connected to the rack rod 10 and the other end is movably connected to the fixed frame 16, and the telescopic rod 15 is a set of smaller diameter shafts inserted into larger diameter shafts, it will extend when the connecting plate 11 moves, thereby providing auxiliary support for the connecting plate 11. When it is necessary to close the cover plate 4, the cover plate 4 is closed by rotating it. The cover plate 4 will drive the rack rod 10 to reset through multiple sets of gears, thereby reducing the space occupied by the buffer pad 13. After closing, the cover plate 4 can be sealed with the top of the hatch cover body 1 through the sealing ring 5 at the bottom.

[0028] Please see Figures 1-5When it is necessary to fix the cover plate 4, by turning the handle b20, the handle b20 will drive the bevel gear a19 to mesh with multiple sets of bevel gears b21, thereby driving the bevel gear b21 and the threaded rod 22 on one side to rotate. The threaded rod 22 will engage with the insertion rod 23 through threaded transmission, thereby driving the insertion rod 23 to move and engage with the locking groove of the hatch cover body 1, thus completing the fixation of the cover plate 4. When it is necessary to fix the cover plate 4 from the outside by using the handle a18, by pulling the handle a18 upward, the handle a18 will engage with the protrusion 24 through the internal locking groove 25. Then the handle a18 can be rotated to drive the connecting shaft 17 to rotate. After closing, the handle a18 can be released, and the internal locking groove 25 of the handle a18 will disengage from the engagement with the protrusion 24, preventing the handle a18 from rotating when an external object accidentally touches it. In this way, the above operation can facilitate the deformation protection of the watertight hatch cover.

[0029] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A watertight hatch cover anti-deformation structure, comprising a hatch cover body (1) and a cover plate (4), wherein a rotating frame (2) is fixedly connected to one side of the top of the hatch cover body (1), a connecting frame (3) is movably connected to the inner side of the rotating frame (2) via a rotating shaft, and a cover plate (4) is welded and fixed to one side of the connecting frame (3), and a limit mechanism is provided at the bottom center of the cover plate (4), characterized in that, A transmission rod (8) is provided on one side of the hatch cover body (1). The outer side of the transmission rod (8) is movably connected to the hatch cover body (1) through a bearing. Transmission mechanisms are provided at both ends of the transmission rod (8). A ratchet (26) is fixed in the middle of the transmission rod (8). A limit rod (27) is provided on one side of the ratchet (26). A protective curtain (28) is fixed at one end of the limit rod (27) near the ratchet (26). One side of the protective curtain (28) is bonded to the hatch cover body (1). A spring b (29) is sleeved on the outer side of the limit rod (27). A fixing mechanism is provided at one end of the limit rod (27).

2. A deformation prevention structure for a watertight hatch cover according to claim 1, characterized in that: The transmission mechanism includes a transmission gear (9) fixed to both ends of the transmission rod (8). A rack rod (10) is meshed with the outer side of the transmission gear (9). A buffer mechanism is provided at one end of the rack rod (10). A support mechanism is provided at the bottom of the rack rod (10). A driven gear (7) is welded and fixed to the outer side of the transmission rod (8). A drive gear (6) is meshed with the outer side of the driven gear (7). Both sides of the drive gear (6) are connected and fixed to the connecting frame (3). The buffer mechanism includes a connecting plate (11) fixed to the end of the rack rod (10). Multiple dampers (12) are installed on the top of the connecting plate (11). A buffer pad (13) is connected and fixed to the top of the damper (12). A spring a (14) is sleeved on the outer side of the damper (12).

3. A deformation prevention structure for a watertight hatch cover according to claim 2, characterized in that: The top of the buffer pad (13) is arc-shaped, the shape of the rotating frame (2) is L-shaped, the fixing mechanism includes a rotating block (30) that is movably connected to one end of the limiting rod (27) via a damping rotating shaft, a fixing block is welded and fixed on the outside of the rotating block (30), and a fixing plate (31) is welded and fixed inside the hatch cover body (1). The top of the fixing plate (31) is provided with a limiting groove (32) that matches the fixing block.

4. A deformation prevention structure for a watertight hatch cover according to claim 2, characterized in that: The support mechanism includes a telescopic rod (15) that is movably connected to the bottom of the rack (10) via a rotating shaft. One end of the telescopic rod (15) is movably connected to a fixed frame (16) via a rotating shaft. One side of the fixed frame (16) is welded and fixed to the hatch cover body (1).

5. A deformation prevention structure for a watertight hatch cover according to claim 1, characterized in that: A sealing ring (5) is bonded around the bottom of the cover plate (4), and the outer side of the sealing ring (5) abuts against the hatch cover body (1).

6. A deformation prevention structure for a watertight hatch cover according to claim 1, characterized in that: The limiting mechanism includes a connecting shaft (17) that is movably connected to the inside of the cover plate (4) via a bearing. A handle a (18) is slidably connected to the top of the connecting shaft (17). A locking mechanism is provided inside the handle a (18). A bevel gear a (19) is fixed to the bottom of the handle a (18). A handle b (20) is welded to the bottom of the bevel gear a (19). Multiple sets of bevel gears b (21) mesh with the outside of the bevel gear a (19). A threaded rod (22) is connected and fixed to one side of the bevel gear b (21). One end of the threaded rod (22) is movably connected to the cover plate (4) via a bearing. The other end of the threaded rod (22) is threadedly connected to a plug rod (23). The outside of the plug rod (23) is slidably connected to the cover plate (4).

7. A deformation prevention structure for a watertight hatch cover according to claim 6, characterized in that: The engaging mechanism includes a protrusion (24) that is welded and fixed to the top of the connecting shaft (17), and the inner side of the handle a (18) is provided with a slot (25) that matches the protrusion (24).

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