hatch structure and ship

Abstract

This invention relates to the field of marine technology, specifically disclosing a hatch structure and a ship. The hatch structure includes: a door frame, disposed on the door opening of the cabin; a hatch body, hinged to the side of the door frame; a threshold, hinged to the bottom of the door frame, the threshold folding down to the deck of the cabin to form a slope; a first locking assembly, rotatably disposed on the hatch body and detachably connected to the door frame; a second locking assembly, movably disposed on the threshold and detachably connected to the door frame; and a linkage assembly, disposed on the hatch body, the linkage assembly having a first end and a second end, the first end being connected to the first locking assembly, and the second end being detachably connected to the second locking assembly; when the first locking assembly rotates to a second unlocked position, the first locking assembly releases its locking connection and triggers the second locking assembly to move and unlock the threshold. The hatch structure of this application can maintain its blocking function while also facilitating selective opening of the hatch and threshold, thereby improving the transportation efficiency of the trolley and reducing the risk of the trolley falling off.

Description

Technical Field

[0001] This application relates to the field of marine technology, and in particular to a hatch structure and a ship. Background Technology

[0002] Currently, ship cabins are used to carry cargo, crew, and passengers. To ensure the cabin's airtightness, doorways are typically created in the cabin bulkheads and fitted with doors to seal them. When personnel need to enter the cabin, the doors are opened to allow passage through the doorway. Because ships are prone to swaying with the waves while on the water, foreign objects and water splashes can easily enter the cabin through the doorway when it is open. Therefore, a threshold is installed in the doorway to block foreign objects and water splashes, while allowing personnel to cross over it to ensure passage through the doorway.

[0003] However, when carrying heavy objects or large carts that need to pass through doorways, the threshold needs to be removed, and then reinstalled after the cart has passed through the doorway. This cumbersome process of removing and installing the threshold affects the cart's transport efficiency. If the threshold is not removed, it is difficult to lift the cart through the doorway, and there is also a risk that the cart may fall and injure the operator while crossing the threshold. Summary of the Invention

[0004] The purpose of this invention is to provide a hatch structure and a ship that can solve the problem of thresholds affecting the efficiency of trolley transportation in the prior art.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] On the one hand, a hatch structure is provided, including:

[0007] Door frame, installed above the doorway of the cabin;

[0008] The hatch body is hinged to the side of the door frame;

[0009] A threshold, hinged to the bottom of the door frame, folds down onto the deck of the cabin to form a slope.

[0010] The first locking component is rotatably mounted on the hatch body and detachably connected to the door frame. The hatch body is provided with a first unlocking position, a locking position and a second unlocking position. The first locking component is used to lock or unlock the hatch body.

[0011] The second locking component is movably disposed on the threshold and detachably connected to the door frame. The second locking component is used to lock or unlock the threshold.

[0012] A linkage component is disposed on the hatch body. The linkage component has a first end and a second end. The first end is connected to the first locking component, and the second end is detachably connected to the second locking component.

[0013] When the first locking component is rotated to the first unlocking position, the first locking component is released from the detachable connection with the door frame;

[0014] When the first locking component rotates to the second unlocking position, the first locking component releases the locking connection between the hatch body and the door frame, and drives the second end of the linkage component to trigger the second locking component to move, so as to release the detachable connection between the threshold and the door frame.

[0015] When the first locking component rotates to the locked position, both the first locking component and the second locking component lock and connect to the threshold.

[0016] As a preferred option for the hatch structure, it also includes:

[0017] A recognition component is disposed on the threshold, and the recognition component is used to recognize objects located in front of the hatch body;

[0018] A drive assembly is disposed on the hatch body and connected to the first locking assembly. The drive assembly is used to drive the first locking assembly to rotate to a first unlocking position, a locked position, or a second unlocking position.

[0019] As a preferred embodiment of the hatch structure, the identification module is either a visual identification module or a lidar module.

[0020] As a preferred embodiment of the hatch structure, the first locking assembly includes a turntable, a locking rod, and a drive rod. The locking rod and the drive rod are mounted on the turntable. The turntable is rotatably connected to the hatch body. The locking rod is detachably connected to the hatch frame. The end of the drive rod is hinged to the linkage assembly. When the turntable rotates to the first unlocking position or the second unlocking position, the locking rod disengages from the hatch frame. When the turntable rotates to the locking position, the locking rod is locked to the hatch frame.

[0021] As a preferred embodiment of the hatch structure, the first locking assembly further includes an operating lever, which is fixedly connected to the turntable and used to point to the first unlocking position, the locked position, or the second unlocking position.

[0022] As a preferred embodiment of the hatch structure, the first locking assembly further includes a limiting ring fixedly mounted on the hatch body. The locking rod is hinged to the turntable and passes through the limiting ring. When the turntable rotates, the locking rod can move relative to the limiting ring.

[0023] As a preferred embodiment of the hatch structure, the linkage assembly includes a connecting rod and a connector. The connector is rotatably mounted on the hatch body. The connector has a first end and a second end. The two ends of the connecting rod are respectively hinged to the drive rod and the first end, and the second end is hinged to the second locking assembly.

[0024] As a preferred embodiment of the hatch structure, the second locking assembly includes a telescopic module and a drive module connected together. The telescopic module has a telescopic rod that is detachably connected to the door frame. The drive module is detachably connected to the second end so that the second end can trigger the drive module to lock or unlock the telescopic rod to the door frame.

[0025] As a preferred embodiment of the hatch structure, a buffer hinge is provided between the threshold and the door frame.

[0026] On the other hand, a ship is provided, including a hull and the hatch structure, the hull having a cabin, and the hatch structure being provided on the door opening of the cabin.

[0027] The beneficial effects of this application are as follows:

[0028] By installing a door frame in the cabin doorway, with the door body hinged to the side of the door frame and a threshold hinged to the bottom, the door body and threshold can be opened and closed at the side and bottom of the door frame, respectively. Simultaneously, the threshold folds down onto the cabin deck to form a ramp, facilitating the entry and exit of carts and passengers. A first locking component is rotatably mounted on the door body. Since the first locking component is detachably connected to the door frame, it can lock the door body to the door frame or unlock the door body from the door frame to open it. Similarly, a second locking component can be movably mounted on the threshold. By moving the second locking component closer to or further away from the door frame, it can be locked and unlocked.

[0029] Furthermore, a linkage component with a first end and a second end is provided on the hatch body. The first end is connected to the first locking component, while the second end is detachably connected to the second locking component. This allows the movement of the first locking component to influence the movement of the second locking component via the linkage component. For example, the hatch body can have a first unlocking position, a locked position, and a second unlocking position. When the first locking component rotates to the first unlocking position, it releases its detachable connection with the door frame, unlocking the hatch body while keeping the threshold locked to the door frame and opening the hatch body. When the first locking component rotates to the second unlocking position, while unlocking the hatch body, the second end of the linkage component can also drive the second locking component to move, thereby releasing its detachable connection with the door frame and simultaneously unlocking both the hatch body and the threshold, allowing them to open simultaneously. If the first locking component rotates to the locked position, both the first and second locking components maintain their locked connections to the door frame, keeping both the hatch body and the threshold locked to the door frame.

[0030] Therefore, when using the hatch structure of this application, the operator can selectively open the hatch body alone by controlling only the first locking component, or open the hatch body and the threshold simultaneously. After the threshold is unlocked, it can also abut against the deck to form a slope, facilitating the trolley to pass through the doorway freely. In other words, the hatch structure of this application can both maintain the blocking function of the hatch body and the threshold, and also facilitate the selective opening of the hatch body and the threshold, thereby improving the transportation efficiency of the trolley and reducing the risk of the trolley falling and accidentally injuring the operator. Attached Figure Description

[0031] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0032] Figure 1 This is a schematic diagram of a hatch structure provided in one embodiment of this application.

[0033] Figure 2 This is a partial structural diagram of a hatch structure provided in one embodiment of this application.

[0034] Figure 3 This is a side view of a hatch structure provided in an embodiment of this application.

[0035] Figure 4 This is a side view of the sill opening relative to the door frame, provided as an embodiment of this application.

[0036] Figure 5 This is a structural schematic diagram of a ship provided in an embodiment of this application.

[0037] In the picture:

[0038] 11. Door frame; 12. Door body; 121. First unlocking position; 122. Locking position; 123. Second unlocking position; 13. Threshold; 14. Buffer hinge;

[0039] 2. First locking assembly; 21. Turntable; 22. Locking rod; 23. Drive rod; 24. Operating rod; 25. Limit ring;

[0040] 3. Second locking assembly; 31. Telescopic module; 311. Telescopic rod; 32. Drive module;

[0041] 4. Linkage component; 41. Linkage rod; 42. Connector; 421. First end; 422. Second end;

[0042] 5. Identification component; 6. Driver component. Detailed Implementation

[0043] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] To address the issue of threshold 13 affecting the efficiency of cart transportation in existing technologies, such as Figure 1 and Figure 2As shown, this embodiment provides a hatch structure, including:

[0047] Door frame 11, installed on the doorway of the cabin;

[0048] The hatch body 12 is hinged to the side of the door frame 11;

[0049] The threshold 13 is hinged to the bottom of the door frame 11, and the threshold 13 can be folded onto the deck of the cabin to form a slope.

[0050] The first locking component 2 is rotatably mounted on the hatch body 12 and detachably connected to the door frame 11. The hatch body 12 is provided with a first unlocking position 121, a locking position 122 and a second unlocking position 123. The first locking component 2 is used to lock or unlock the hatch body 12.

[0051] The second locking component 3 is movably mounted on the threshold 13 and detachably connected to the door frame 11. The second locking component 3 is used to lock or unlock the threshold 13.

[0052] Linkage component 4 is disposed on the hatch body 12. Linkage component 4 has a first end 421 and a second end 422. The first end 421 is connected to the first locking component 2, and the second end 422 is detachably connected to the second locking component 3.

[0053] When the first locking component 2 is rotated to the first unlocking position 121, the first locking component 2 is released from the detachable connection with the door frame 11;

[0054] When the first locking component 2 rotates to the second unlocking position 123, the first locking component 2 releases the locking connection between the hatch body 12 and the door frame 11, and drives the second end 422 of the linkage component 4 to trigger the second locking component 3 to move, so as to release the detachable connection between the threshold 13 and the door frame 11.

[0055] When the first locking component 2 rotates to the locked position 122, both the first locking component 2 and the second locking component 3 lock the connecting threshold 13.

[0056] This application provides a door frame 11 in the doorway of the cabin, with a door body 12 hinged to the side of the door frame 11 and a threshold 13 hinged to the bottom of the door frame 11. This allows the door body 12 and the threshold 13 to open and close from the side and bottom of the door frame 11, respectively. Simultaneously, the threshold 13 folds down onto the deck of the cabin to form a ramp, facilitating the entry and exit of carts and passengers. A first locking assembly 2 is rotatably mounted on the door body 12. Since the first locking assembly 2 is detachably connected to the door frame 11, it can lock the door body 12 onto the door frame 11, or unlock the door body 12 from the door frame 11 to open it. Similarly, a second locking assembly 3 can be movably mounted on the threshold 13. By moving the second locking assembly 3 closer to or further away from the door frame 11, locking and unlocking the second locking assembly 3 relative to the door frame 11 can be achieved.

[0057] Furthermore, a linkage component 4 with a first end 421 and a second end 422 is provided on the hatch body 12. The first end 421 is connected to the first locking component 2, while the second end 422 is detachably connected to the second locking component 3. This allows the movement of the first locking component 2 to affect the movement of the second locking component 3 through the linkage component 4. For example, a first unlocking position 121, a locking position 122, and a second unlocking position 123 are provided on the hatch body 12. When the first locking component 2 rotates to the first unlocking position 121, the first locking component 2 is released from its detachable connection with the door frame 11, thereby unlocking the hatch body 12. This keeps the threshold 13 locked on the door frame 11 and allows the hatch body 12 to be opened. When the first locking component 2 rotates to the second unlocking position 123, while the first locking component 2 unlocks the hatch body 12, it can also drive the second locking component 3 to move through the second end 422 of the linkage component 4, thereby causing the second locking component 3 to disengage from the detachable connection with the door frame 11, and simultaneously unlocking the hatch body 12 and the threshold 13, so as to open the hatch body 12 and the threshold 13 at the same time. If the first locking component 2 rotates to the locking position 122, it simultaneously maintains the locking connection between the first locking component 2 and the door frame 11 and the locking connection between the second locking component 3 and the door frame 11, thus maintaining the locked state of the hatch body 12 and the threshold 13 with the door frame 11 respectively.

[0058] Therefore, when using the hatch structure of this application, the operator can selectively open the hatch body 12 individually or simultaneously by controlling only the first locking component 2. After the hatch body 12 and the threshold 13 are unlocked, the threshold 13 can also abut against the deck to form a slope, facilitating the trolley to pass through the doorway and enter and exit freely. In other words, the hatch structure of this application can maintain the blocking function of the hatch body 12 and the threshold 13, and also facilitate the selective opening of the hatch body 12 and the threshold 13, thereby improving the transportation efficiency of the trolley and reducing the risk of the trolley falling and injuring the operator.

[0059] In this embodiment, the first unlocking position 121, the locking position 122, and the second unlocking position 123 can be arranged in a ring, with the center of the first locking component 2 as the center of the ring. When the first locking component 2 rotates on the hatch body 12, it can selectively point to the first unlocking position 121, the locking position 122, or the second unlocking position 123 to drive the linkage component 4 to rotate to the corresponding position. For example, when the first locking component 2 points to the first unlocking position 121, the first locking component 2 unlocks the hatch body 12 and simultaneously drives the linkage component 4 away from the second locking component 3, disconnecting the linkage component 4 from the second locking component 3 and avoiding mis-locking the sill 13. When the first locking component 2 rotates to the second unlocking position 123, while unlocking the hatch body 12, it also drives the linkage component 4 closer to the second locking component 3 and moves the second locking component 3, simultaneously unlocking the sill 13, achieving the effect of simultaneously unlocking the hatch body 12 and the sill 13. After the sill 13 is opened, it can be laid down on the deck to form a slope.

[0060] If it is necessary to close the hatch body 12 and the threshold 13 later, first fold the threshold 13 to block the bottom of the door frame 11, then move the second locking component 3 until it engages with the door frame 11 to reset the locking of the threshold 13 and the door frame 11. At this time, rotate the hatch body 12 to block the door frame 11, causing the first locking component 2 to rotate to the locked position 122. The first locking component 2 engages with the door frame 11 to keep the hatch body 12 locked on the door frame 11, while the linkage component 4 does not drive the second locking component 3 to move, thus maintaining the locking connection between the hatch body 12 and the threshold 13 and the door frame 11 respectively.

[0061] In one embodiment, reference Figure 1 and Figure 2 The hatch structure of this application also includes an identification component 5 and a drive component 6. The identification component 5 is disposed on the threshold 13 and can identify objects located in front of the hatch body 12. The drive component 6 is disposed on the hatch body 12 and connected to the first locking component 2. The drive component 6 is used to drive the first locking component 2 to rotate to the first unlocking position 121, the locked position 122, or the second unlocking position 123.

[0062] For example, if an operator arrives at the hatch body 12, they only need to open the hatch body 12 and cross the threshold 13 to freely enter and exit the cabin. At this time, the identification component 5 recognizes that there is only an operator in front of the hatch body 12, and drives the first locking component 2 to rotate to the first unlocking position 121 through the drive component 6 to unlock the hatch body 12, keeping the threshold 13 locked to the door frame 11. At this time, the operator can open the hatch body 12 and directly cross the threshold 13 to enter and exit the cabin. If the operator pushes a cart to the front of the hatch body 12, and the identification component 5 recognizes that there is an operator and a cart in front of the hatch body 12, and it is necessary to unlock both the hatch body 12 and the threshold 13 at the same time, the drive component 6 drives the first locking component 2 to rotate to the second unlocking position 123 to unlock both the hatch body 12 and the threshold 13 at the same time. After the operator directly opens the hatch body 12 and lowers the threshold 13, they can push the cart to move on the slope formed by the threshold 13 to enter and exit the cabin.

[0063] Furthermore, the drive assembly 6 is also provided on the hinge between the hatch body 12 and the door frame 11 and the hinge between the threshold 13 and the door frame 11. The drive assembly 6 can drive the hatch body 12 and the threshold 13 to rotate relative to the door frame 11, so as to realize the automatic opening and closing of the hatch body 12 or the threshold 13.

[0064] In a preferred embodiment, the recognition module is a visual recognition module or a lidar module. The visual recognition module or lidar module can acquire the shape of the object in front of the hatch body 12 and analyze and determine the category of the object to determine whether there are only operators. Correspondingly, only the hatch body 12 is opened or both the hatch body 12 and the threshold 13 are opened at the same time.

[0065] Optionally, the hatch structure of this application also includes a gravity sensing component (not shown in the figure) located in front of the hatch body 12 and disposed below the deck. The gravity sensing component detects the weight data of an object located in front of the hatch body 12 to determine whether it is necessary to open the hatch body 12 and the threshold 13 simultaneously. Two weight value indicators can be set. When the detected weight data is greater than the first indicator and less than the second indicator, the first locking component 2 is rotated to the first unlocking position 121 by the drive component 6. If the weight data is greater than the second indicator, the first locking component 2 is rotated to the second unlocking position 123 by the drive component 6. In this embodiment, the hatch body 12 and the threshold 13 can be opened simultaneously by the drive component 6, or only the hatch body 12 can be opened, based on the detection data of the gravity sensing component.

[0066] Specifically, refer to Figure 2The first locking assembly 2 includes a turntable 21, a locking rod 22, and a drive rod 23. The locking rod 22 and the drive rod 23 are mounted on the turntable 21, which is rotatably connected to the hatch body 12. The locking rod 22, which is driven to rotate, can be detachably connected to the door frame 11 to lock and unlock the hatch body 12. The end of the drive rod 23 is hinged to the linkage assembly 4. When the turntable 21 rotates to the first unlocking position 121 or the second unlocking position 123, the locking rod 22, which is driven to rotate, disengages from the door frame 11 and unlocks the hatch body 12. When the turntable 21 rotates to the locking position 122, the locking rod 22 rotates to engage with the door frame 11 and locks the hatch body 12 onto the door frame 11.

[0067] Preferably, refer to Figure 3 The first locking assembly 2 also includes an operating lever 24, which is fixedly connected to the turntable 21. This not only makes it easier for the operator to hold the operating lever 24 to drive the turntable 21 to rotate, but also allows the operator to point the operating lever 24 to the first unlocking position 121, the locking position 122, or the second unlocking position 123. This also makes it easier for the operator to know whether the first locking assembly 2 is in the first unlocking position 121, the locking position 122, or the second unlocking position 123.

[0068] Another preferred option is to refer to Figure 1 and Figure 2 The first locking assembly 2 also includes a limiting ring 25 fixedly mounted on the door body 12. The locking rod 22 is hinged to the turntable 21 and passes through the limiting ring 25, so that the locking rod 22 can move relative to the limiting ring 25 when the turntable 21 rotates. The limiting ring 25 limits the movement of the locking rod 22 relative to the door frame 11. In this embodiment, the same locking rod 22 can be provided with at least one limiting ring 25, and the same turntable 21 can also be provided with at least one locking rod 22, depending on the specific application requirements. This embodiment does not impose specific limitations.

[0069] For the preferred structure of linkage component 4, refer to Figure 2 The linkage component 4 includes a connecting rod 41 and a connector 42. The connector 42 is rotatably mounted on the hatch body 12. The connector 42 has a first end 421 and a second end 422. The two ends of the connecting rod 41 are respectively hinged to the drive rod 23 and the first end 421. The second end 422 is then hinged to the second locking component 3, so that when the drive rod 23 is driven to rotate by the turntable 21, it can simultaneously drive the connecting rod 41 to move, thereby driving the connector 42 to rotate relative to the hatch body 12. In this embodiment, the rotation direction of the connector 42 is the same as the rotation direction of the turntable 21, so as to set the second locking component 3 at the corresponding position of the connector 42.

[0070] Optionally, the second locking assembly 3 includes a telescopic module 31 and a drive module 32 connected together. The telescopic module 31 has a telescopic rod 311 that can be extended and retracted, so that the telescopic rod 311 is detachably connected to the door frame 11. The drive module 32 is detachably connected to a second end 422, so that the second end 422 can trigger the drive module 32 to move and drive the telescopic rod 311 to extend and retract relative to the door frame 11, thereby locking or unlocking the threshold 13 to or from the door frame 11.

[0071] In this embodiment, the drive module 32 can be a hydraulic cylinder with a push-button switch. When the second end 422 of the connector 42 contacts the push-button switch, the hydraulic cylinder is triggered to move, thereby driving the telescopic rod 31 of the telescopic module 31 to extend and retract.

[0072] Furthermore, a locking ring can be installed on the door frame 11, and the telescopic rod 311 can be inserted into the locking ring after it is extended to lock the threshold 13 to the door frame 11.

[0073] Specifically, refer to Figure 4 A buffer hinge 14 is provided between the threshold 13 and the door frame 11 to reduce the impact vibration caused by the threshold 13 falling onto the deck too fast after unlocking, thus protecting the door frame 11 and the deck.

[0074] like Figure 5 As shown, this application also provides a ship, including a hull and a hatch structure according to any of the above embodiments. The hull of this embodiment has a cabin, and a hatch structure is provided on the door opening of the cabin. The hatch structure in this embodiment can have the same structure and achieve the same effect as the hatch structure in the above embodiments, and will not be described again in this embodiment.

[0075] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not 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. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0076] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0077] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is merely for clarity, and when combined, other embodiments that can be understood by those skilled in the art can be formed.

[0078] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A hatch structure, characterized in that, include: Door frame (11), installed on the door opening of the cabin; The hatch body (12) is hinged to the side of the door frame (11); A threshold (13) is hinged to the bottom of the door frame (11), and the threshold (13) is folded up onto the deck of the cabin to form a slope. The first locking component (2) is rotatably mounted on the hatch body (12) and detachably connected to the door frame (11). The hatch body (12) is provided with a first unlocking position (121), a locking position (122) and a second unlocking position (123). The first locking component (2) is used to lock or unlock the hatch body (12). The second locking component (3) is movably disposed on the threshold (13) and detachably connected to the door frame (11). The second locking component (3) is used to lock or unlock the threshold (13). Linkage component (4) is disposed on the hatch body (12). The linkage component (4) has a first end (421) and a second end (422). The first end (421) is connected to the first locking component (2), and the second end (422) is detachably connected to the second locking component (3). When the first locking component (2) is rotated to the first unlocking position (121), the first locking component (2) is released from the detachable connection with the door frame (11); When the first locking component (2) rotates to the second unlocking position (123), the first locking component (2) releases the locking connection between the hatch body (12) and the door frame (11), and drives the second end (422) of the linkage component (4) to trigger the second locking component (3) to move, so as to release the detachable connection between the threshold (13) and the door frame (11); When the first locking component (2) rotates to the locked position (122), both the first locking component (2) and the second locking component (3) are locked to the threshold (13); The first locking assembly (2) includes a turntable (21), a locking rod (22), and a drive rod (23). The locking rod (22) and the drive rod (23) are mounted on the turntable (21). The turntable (21) is rotatably connected to the hatch body (12). The locking rod (22) is detachably connected to the door frame (11). The end of the drive rod (23) is hinged to the linkage assembly (4). When the turntable (21) rotates to the first unlocking position (121) or the second unlocking position (123), the locking rod (22) disengages from the door frame (11). When the turntable (21) rotates to the locking position (122), the locking rod (22) is locked to the door frame (11). The first locking assembly (2) further includes an operating lever (24), which is fixedly connected to the turntable (21) and is used to point to the first unlocking position (121), the locking position (122), or the second unlocking position (123). The first locking assembly (2) further includes a limiting ring (25) fixedly mounted on the hatch body (12). The locking rod (22) is hinged to the turntable (21) and passes through the limiting ring (25). When the turntable (21) rotates, the locking rod (22) can move relative to the limiting ring (25). The linkage component (4) includes a connecting rod (41) and a connector (42). The connector (42) is rotatably mounted on the hatch body (12). The connector (42) has a first end (421) and a second end (422). The two ends of the connecting rod (41) are respectively hinged to the drive rod (23) and the first end (421). The second end (422) is hinged to the second locking component (3).

2. The hatch structure according to claim 1, characterized in that, Also includes: A recognition component (5) is disposed on the threshold (13), and the recognition component (5) is used to recognize an object located in front of the hatch body (12); A drive assembly (6) is disposed on the hatch body (12) and connected to the first locking assembly (2). The drive assembly (6) is used to drive the first locking assembly (2) to rotate to a first unlocking position (121), a locking position (122) or a second unlocking position (123).

3. The hatch structure according to claim 2, characterized in that, The recognition module is either a visual recognition module or a lidar module.

4. The hatch structure according to any one of claims 1 to 3, characterized in that, The second locking assembly (3) includes a telescopic module (31) and a drive module (32) connected together. The telescopic module (31) has a telescopic rod (311) which is detachably connected to the door frame (11). The drive module (32) is detachably connected to the second end (422) so that the second end (422) can trigger the drive module (32) to drive the telescopic rod (311) to lock or unlock the door frame (11).

5. The hatch structure according to any one of claims 1 to 3, characterized in that, A buffer hinge (14) is provided between the threshold (13) and the door frame (11).

6. A ship, characterized in that, The invention includes a hull and a hatch structure as described in any one of claims 1 to 5, wherein the hull has a cabin and the hatch structure is provided on the door opening of the cabin.

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