A double-sided opening hatch cover system and a ship

Abstract

The utility model relates to ship equipment technical field, especially a hatch cover system of bilateral opening and ship. The hatch cover system includes hatch body, hatch cover and drive structure. The hatch body includes left side part, intermediate part and right side part who are connected in proper order along the ship width direction. The hatch cover is equipped with the gyro wheel on, and the hatch cover is connected in the hatch body through the gyro wheel sliding. The drive structure includes the left side drive part who establishes in the left side of hatch cover and the right side drive part who establishes in the right side of hatch cover, and the output of left side drive part and right side drive part is connected with gear assembly respectively, and the hatch cover is connected with the rack who extends along the horizontal direction, and left side drive part, right side drive part respectively through corresponding gear assembly and rack meshing drive, and drive structure is used for driving the hatch cover and sliding from intermediate part to left side part or right side part. Thus realize the hatch cover and slide from intermediate part to left side part or right side part, satisfy the demand of ore carrier and load and unload goods in the anchorage over the barge two sides double and rely on.

Description

Technical Field

[0001] This utility model relates to the field of marine equipment technology, and in particular to a hatch cover system with double-sided opening and a ship. Background Technology

[0002] There are two common methods for loading and unloading cargo on ore carriers: one is to load and unload cargo at the dock, in which case all the hatch covers of the cargo hatches are opened to the same side, in the opposite direction to the side of the berth. For example, if the berth is on the starboard side, all the hatch covers are opened to the port side, and the loading and unloading operations are completed with the help of the dock's loading and unloading equipment; the other is to use a barge for loading and unloading when the ore carrier is at anchor.

[0003] However, existing technologies have some problems in practical applications. When using barges for loading and unloading at anchorages, the barges' loading and unloading equipment imposes certain restrictions on the empty height of ore carriers, and typically only one barge can berth on the same side of the ore carrier, resulting in low loading and unloading efficiency, long processing times, and low utilization of both the vessel and the anchorage. To solve these problems, there is a need for barges to berth on both sides for loading and unloading. In this case, some cargo hold hatch covers need to have a single-piece double-sided opening function to meet the barge's requirements for the empty height of the ore carrier. Utility Model Content

[0004] The purpose of this utility model is to provide a hatch cover system and vessel that can be opened from both sides to meet the needs of ore carriers to berth on both sides of the barge in the anchorage and to load and unload cargo quickly.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model provides a hatch cover system that opens from both sides, comprising:

[0007] The hatch body comprises a port section, a midship section, and a starboard section connected sequentially along the width of the ship;

[0008] Hatch cover, with rollers on the hatch cover, the hatch cover is slidably connected to the hatch body via the rollers;

[0009] The drive structure includes a port drive unit located on the left side of the hatch cover and a starboard drive unit located on the right side of the hatch cover. The output ends of the port drive unit and the starboard drive unit are respectively connected to gear assemblies. A rack extending in the horizontal direction is connected to the hatch cover. The port drive unit and the starboard drive unit are respectively driven by the corresponding gear assemblies meshing with the rack. The drive structure is used to drive the hatch cover to slide from the middle part to the port or starboard part.

[0010] Preferably, the rack includes a port rack, a center rack, and a starboard rack arranged at intervals;

[0011] The port rack is connected to the left side of the hatch cover, the center rack is connected to the middle section of the hatch cover, and the starboard rack is connected to the right side of the hatch cover.

[0012] The port-side drive unit is driven by a gear assembly that meshes with the port-side rack and the center rack in sequence. The starboard-side drive unit is driven by a gear assembly that meshes with the starboard rack and the center rack in sequence.

[0013] Preferably, it also includes a port drive arm and a starboard drive arm, with a port rack located on the port drive arm and connected to the left side of the hatch cover via the port drive arm, and a starboard rack located on the starboard drive arm and connected to the right side of the hatch cover via the starboard drive arm.

[0014] Preferably, the gear assembly includes a driving gear, a transition gear, and a driven gear that mesh in sequence;

[0015] The driving gear and the driven gear rotate in the same direction;

[0016] The output ends of the port side drive and the starboard side drive are respectively connected to the corresponding drive gears;

[0017] The port side drive component is driven by the corresponding driving gear and driven gear, which mesh with the port side rack and the middle rack in sequence.

[0018] The starboard drive unit is driven by the corresponding drive gear and driven gear, which mesh with the starboard rack and the intermediate rack in sequence.

[0019] Preferably, it also includes a lifting structure. A through hole is provided in the middle part of the hatch body. The lifting structure is located below the middle part and corresponds to the through hole. When the hatch cover is located in the middle part, the roller is engaged in the through hole. The lifting structure is used to push the roller upward to separate the roller from the through hole.

[0020] Preferably, it further includes a limiting structure, which includes a limiting mating part connected to the hatch cover and a limiting component disposed in the middle part, the limiting component being used to form a stop mating with the limiting mating part.

[0021] Preferably, the limiting component includes a limiting base and a limiting block. The limiting base is provided on both the left and right sides of the limiting mating part, and the limiting block is movably disposed on the limiting base on both sides of the limiting mating part. The limiting block is used to form a stop fit with the limiting mating part.

[0022] Preferably, the limiting structure further includes positioning components respectively provided on the port side and the starboard side. The limiting mating part has a first pin hole, and the positioning component has a second pin hole. When the hatch cover slides from the middle part to the port side or the starboard side to the fully open position, the limiting mating part and the positioning component form a stop fit, and the first pin hole of the limiting mating part and the second pin hole of the positioning component are connected.

[0023] Preferably, it also includes a clamping device, which is disposed on the hatch body. When the hatch cover is located in the middle of the hatch body, the clamping device is used to press and fix the hatch cover to the hatch body.

[0024] This utility model also provides a ship, including the double-sided opening hatch cover system described above.

[0025] Compared with the prior art, this utility model has significant progress:

[0026] This utility model discloses a double-sided opening hatch cover system, which is equipped with a port-side drive component and a starboard-side drive component, respectively driven by gear assemblies meshing with a rack and pinion, converting rotational motion into linear sliding motion of the hatch cover plate. When the hatch cover plate needs to be slid towards the port side, the port-side drive component is activated, and its output end drives the gear assembly to rotate. The gear assembly, through the rack and pinion, drives the hatch cover plate to slide from the middle towards the port side. When the hatch cover plate needs to be slid towards the starboard side, the starboard drive component is activated, driving the hatch cover plate to slide towards the starboard side. This enables rapid sliding of the hatch cover plate from the middle towards the port or starboard side, meeting the needs of ore carriers for double-sided berthing and rapid loading and unloading of cargo by barges at anchor, significantly improving loading and unloading efficiency, reducing time costs, and effectively enhancing the utilization rate of the vessel and anchorage. Attached Figure Description

[0027] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0028] Figure 1 This is a schematic diagram of the overall structure of the hatch cover system of this utility model when the hatch cover plate is located in the middle part;

[0029] Figure 2 This is a schematic diagram of the overall structure of the hatch cover system of this utility model when the hatch cover plate is located on the port side;

[0030] Figure 3 This is a schematic diagram of the overall structure of the hatch cover system of this utility model when the hatch cover plate is located on the starboard side;

[0031] Figure 4 yes Figure 1 The schematic diagram shown omits the port and starboard sides of the hatch cover system.

[0032] Figure 5 This is a schematic diagram of the gear assembly and rack and pinion mechanism on the port side of the hatch cover system according to an embodiment of this utility model.

[0033] Figure 6This is a schematic diagram of the gear assembly and rack and pinion mechanism on the starboard side of the hatch cover system according to an embodiment of the present invention.

[0034] Figure 7 This is a schematic diagram of the lifting structure of the hatch cover system according to an embodiment of the present invention when the lifting rollers are not in use;

[0035] Figure 8 This is a schematic diagram of the lifting structure of the hatch cover system according to an embodiment of the present invention, after the lifting rollers are lifted upwards.

[0036] Figure 9 This is a schematic diagram of the structure of the limiting fitting part and the limiting component of the hatch cover system according to an embodiment of the present utility model.

[0037] Figure 10 This is an isometric schematic diagram of the limiting component of the hatch cover system according to an embodiment of the present invention.

[0038] Figure 11 This is a schematic diagram of the structure of the limiting and positioning components of the hatch cover system according to an embodiment of the present invention.

[0039] Figure 12 This is a schematic diagram of the structure of the clamping device of the hatch cover system according to an embodiment of the present utility model.

[0040] Figure 13 This is a schematic diagram of the hatch cover system installed on a ship according to an embodiment of the present invention.

[0041] Explanation of reference numerals in the attached drawings: 1-Hatch body; 11-Port side; 12-Middle section; 121-Through hole; 13-Starboard side; 2-Hatch cover plate; 21-Roller; 3-Drive structure; 31-Port drive component; 32-Starboard drive component; 4-Gear assembly; 41-Drive gear; 42-Transition gear; 43-Driven gear; 5-Rack; 51-Port rack; 52-Middle rack; 53-Starboard rack; 6-Port drive arm; 7-Starboard drive arm; 8-Lifting structure; 81-Lifting cylinder; 82-Lifting block; 83-Guide plate; 9-Limiting structure; 91-Limiting mating part; 91a-First pin hole; 911-Buffer device; 92-Limiting assembly; 921-Limiting base; 922-Limiting block; 93-Positioning assembly; 93a-Second pin hole; 10-Pressure device. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0043] like Figures 1 to 13 The image shows one embodiment of the double-sided opening hatch cover system of this utility model.

[0044] See Figures 1 to 4 The dual-sided opening hatch cover system of this embodiment includes a hatch body 1, a hatch cover plate 2, and a drive structure 3.

[0045] The hatch body 1 includes a port side section 11, a mid-section section 12, and a starboard side section 13 connected sequentially along the width of the ship. The hatch body 1 forms the installation and support foundation for the hatch cover system, providing a track and space for the sliding of the hatch cover plate 2, so that the hatch cover plate 2 can move stably in the port and starboard directions.

[0046] The hatch cover 2 is equipped with rollers 21, and the hatch cover 2 is slidably connected to the hatch body 1 via the rollers 21. The rollers 21 reduce the friction between the hatch cover 2 and the hatch body 1, making the sliding of the hatch cover 2 smoother. In the initial state, the hatch cover 2 is located in the middle part 12, at which time the cargo hatch is covered by the hatch cover 2. When the hatch cover 2 slides to the port side 11 or the starboard side 13, the cargo hatch is opened.

[0047] The drive structure 3 includes a port-side drive component 31 located on the left side of the hatch cover 2 and a starboard-side drive component 32 located on the right side of the hatch cover 2. The port-side drive component 31 and the starboard-side drive component 32 serve as power sources to provide power for the sliding of the hatch cover 2. The output ends of the port-side drive component 31 and the starboard-side drive component 32 are respectively connected to gear assemblies 4. A rack 5 extending horizontally is connected to the hatch cover 2. The port-side drive component 31 and the starboard-side drive component 32 are respectively driven by the corresponding gear assemblies 4 meshing with the rack 5. The drive structure 3 is used to drive the hatch cover 2 to slide from the middle part 12 to the port side 11 or the starboard side 13. The output ends of the port drive unit 31 and the starboard drive unit 32 rotate to drive the gear assembly 4. The gear assembly 4 transmits the rotational motion of the output ends of the port drive unit 31 and the starboard drive unit 32 to the rack 5. The rack 5 converts the rotational motion of the gear assembly 4 into the linear sliding motion of itself and the hatch cover 2, so that the hatch cover 2 can slide from the middle part 12 to the port part 11 or the starboard part 13.

[0048] When cargo needs to be loaded or unloaded from the port side 11 of the hatch body 1, the starboard drive 32 is activated, driving the gear assembly 4 at its output end to rotate. Since the gear assembly 4 meshes with the rack 5 connected to the hatch cover 2, the rotation of the gear assembly 4 drives the hatch cover 2 to slide from the middle section 12 to the starboard side 13 via the rack 5. At this time, the port side drive 31 is either stopped or set to free rotation mode to avoid interfering with the sliding of the hatch cover 2. During the sliding process, the rollers 21 on the hatch cover 2 roll along the track of the hatch body 1, ensuring that the hatch cover 2 moves smoothly to the starboard side 13. As the hatch cover 2 slides, it eventually reaches the position of the starboard side 13, allowing the cargo hatch at the middle section 12 to be fully opened for loading and unloading operations by the port side barge.

[0049] When cargo needs to be loaded or unloaded from the starboard side 13 of the hatch body 1, the port side drive 31 is activated, driving the gear assembly 4 at its output end to rotate. Since the gear assembly 4 meshes with the rack 5 connected to the hatch cover 2, the rotation of the gear assembly 4 drives the hatch cover 2 to slide from the middle section 12 towards the port side 11 via the rack 5. At this time, the starboard side drive 32 is either stopped or set to free rotation mode to avoid interfering with the sliding of the hatch cover 2. During the sliding process, the rollers 21 on the hatch cover 2 roll along the track of the hatch body 1, ensuring that the hatch cover 2 moves smoothly towards the port side 11. As the hatch cover 2 slides, it eventually reaches the position of the port side 11, allowing the cargo hatch at the middle section 12 to be fully opened for loading and unloading operations by the starboard barge.

[0050] In this embodiment, both the port side drive unit 31 and the starboard side drive unit 32 are hydraulic motors. During operation, the bypass ball valve of the hydraulic motor is precisely controlled according to the specific hatch opening requirements. For example, when it is necessary to slide the hatch cover 2 towards the port side 11, the bypass ball valve of the port side hydraulic motor is closed, and the hydraulic oil flows through the normal operating circuit of the hydraulic motor. The port side hydraulic motor can work normally, causing the output shaft to drive the gear assembly 4 to rotate. The gear assembly 4 meshes with the rack 5, converting the rotational motion into a linear sliding motion of the hatch cover 2 from the middle part 12 towards the port side 11. At the same time, the bypass ball valve of the starboard side hydraulic motor is opened, and the return oil of the starboard side hydraulic motor flows directly back to the oil tank or other low-pressure areas, so that the starboard side hydraulic motor does not work and the output shaft is in a free state. Therefore, the gear assembly 4 on the output shaft of the starboard side hydraulic motor will not interfere with the sliding of the rack 5 towards the port side 11.

[0051] The double-sided opening hatch cover system of this embodiment is equipped with a port-side drive component 31 and a starboard-side drive component 32, which are respectively driven by a gear assembly 4 and a rack 5 to convert rotational motion into linear sliding motion of the hatch cover plate 2. When the hatch cover plate 2 needs to be slid towards the port side 11, the port-side drive component 31 is activated, and the output end of the port-side drive component 31 drives the gear assembly 4 to rotate. The gear assembly 4 drives the hatch cover plate 2 from the middle part 12 towards the port side 11 through the rack 5. When the hatch cover plate 2 needs to be slid towards the starboard side 13, the starboard-side drive component 32 is activated, driving the hatch cover plate 2 towards the starboard side 13. Thus, the hatch cover plate 2 can be quickly slid from the middle part 12 towards the port side 11 or the starboard side 13, meeting the needs of ore carriers to berth on both sides of the barge and quickly load and unload cargo at anchor, significantly improving loading and unloading efficiency, reducing time costs, and effectively improving the utilization rate of the ship and the anchorage.

[0052] See Figure 4 Preferably, the rack 5 includes a port rack 51, a middle rack 52, and a starboard rack 53 spaced apart. The port rack 51 is connected to the left side of the hatch cover 2, the middle rack 52 is connected to the middle section of the hatch cover 2, and the starboard rack 53 is connected to the right side of the hatch cover 2. The port drive unit 31 engages with the port rack 51 and the middle rack 52 sequentially via the gear assembly 4, and the starboard drive unit 32 engages with the starboard rack 53 and the middle rack 52 sequentially via the gear assembly 4.

[0053] In this embodiment, when the port side drive unit 31 is activated, its output end drives the corresponding gear assembly 4 to rotate. The gear assembly 4 first engages with the port side rack 51, driving the hatch cover 2 to begin sliding towards the port side 11. When the hatch cover 2 slides to the interval between the port side rack 51 and the intermediate rack 52, the gear assembly 4 gradually disengages from the port side rack 51 and begins to engage with the intermediate rack 52, continuing to drive the hatch cover 2 to slide towards the port side 11 until the hatch cover 2 completely reaches the position of the port side 11. When the starboard side drive unit 32 is activated, its output end drives the corresponding gear assembly 4 to rotate. The gear assembly 4 first engages with the starboard side rack 53, driving the hatch cover 2 to begin sliding towards the starboard side 13. As the hatch cover 2 slides to the interval between the starboard rack 53 and the intermediate rack 52, the gear assembly 4 gradually disengages from the starboard rack 53 and begins to mesh with the intermediate rack 52, continuing to drive the hatch cover 2 to slide towards the starboard side 13 until the hatch cover 2 is fully in the position of the starboard side 13. The rack 5 is designed to consist of a port rack 51, an intermediate rack 52, and a starboard rack 53 spaced apart, ensuring good sealing between the edge of the hatch cover 2 and the hatch body 1, effectively preventing seawater, debris, etc., from entering the cargo hold and ensuring the safety of the cargo inside.

[0054] See Figure 4Preferably, the double-sided opening hatch cover system of this embodiment further includes a port side drive arm 6 and a starboard side drive arm 7. A port side rack 51 is disposed on the port side drive arm 6 and connected to the left side of the hatch cover plate 2 via the port side drive arm 6. A starboard side rack 53 is disposed on the starboard side drive arm 7 and connected to the right side of the hatch cover plate 2 via the starboard side drive arm 7. When the port side drive unit 31 is activated, its output end gear assembly 4 meshes with the port side rack 51. The port side rack 51 is connected to the left side of the hatch cover plate 2 via the port side drive arm 6. Therefore, the rotational motion of the gear assembly 4 is transmitted to the port side drive arm 6 via the port side rack 51, and then the port side drive arm 6 transmits the driving force to the left side of the hatch cover plate 2. When the starboard side drive unit 32 is activated, its output end gear assembly 4 meshes with the starboard side rack 53. The starboard rack 53 is connected to the right side of the hatch cover 2 via the starboard drive arm 7. Therefore, the rotational motion of the gear assembly 4 is transmitted to the starboard drive arm 7 via the starboard rack 53, and then the drive arm 7 transmits the driving force to the right side of the hatch cover 2. The port rack 51 and starboard rack 53 are respectively located on the port drive arm 6 and starboard drive arm 7 and connected to the hatch cover 2 via these arms, improving the reliability of the hatch cover system and reducing the risk of failure due to loose connections. Through the transmission via the port drive arm 6 or starboard drive arm 7, the rotational motion of the gear assembly 4 is converted into the linear sliding motion of the hatch cover 2, achieving the left and right sliding of the hatch cover 2. The port drive arm 6 and starboard drive arm 7 enhance the stability of the hatch cover system, ensuring that the hatch cover 2 experiences uniform force and smooth movement during sliding.

[0055] See Figure 5 and Figure 6 Preferably, the gear assembly 4 includes a driving gear 41, a transition gear 42, and a driven gear 43 that mesh in sequence. The driving gear 41 and the driven gear 43 rotate in the same direction; the output ends of the port side drive member 31 and the starboard side drive member 32 are respectively connected to the corresponding driving gear 41; the port side drive member 31 is driven by the corresponding driving gear 41 and the driven gear 43 in sequence to mesh with the port side rack 51 and the intermediate rack 52; the starboard side drive member 32 is driven by the corresponding driving gear and the driven gear in sequence to mesh with the starboard side rack 53 and the intermediate rack 52.

[0056] In this embodiment, when the port side drive unit 31 is activated, its output end drives the drive gear 41 to rotate. The drive gear 41 first meshes with the port side rack 51, driving the hatch cover 2 to begin sliding towards the port side 11. As the hatch cover 2 slides, the port side rack 51 gradually slides to a position where it meshes with the driven gear 43. The drive gear 41 continues to rotate, driving the driven gear 43 to rotate in the same direction through the transition gear 42. As the hatch cover 2 continues to slide, the port side rack 51 gradually separates from the drive gear 41, causing the drive gear 41 to be located at the interval between the port side rack 51 and the intermediate rack 52. The drive gear 41 continues to drive the driven gear 43 to rotate, and the driven gear 43 continues to maintain meshing with the port side rack 51, pushing the hatch cover 2 to continue sliding towards the port side 11, causing the drive gear 41 to mesh with the intermediate rack 52. As the drive gear 41 continues to rotate, it drives the intermediate rack 52 to move further along the sliding direction of the hatch cover 2, thereby pushing the hatch cover 2 to continue to slide smoothly towards the port side 11.

[0057] In this embodiment, when the starboard drive unit 32 is activated, its output end drives the drive gear 41 to rotate. The drive gear 41 first meshes with the starboard rack 53, driving the hatch cover 2 to begin sliding towards the starboard side 13. As the hatch cover 2 slides, the starboard rack 53 gradually slides to a position where it meshes with the driven gear 43, and the drive gear 41 continues to rotate, driving the driven gear 43 to rotate in the same direction through the transition gear 42. As the hatch cover 2 continues to slide, the starboard rack 53 gradually separates from the drive gear 41, so that the drive gear 41 is located at the interval between the starboard rack 53 and the intermediate rack 52. The drive gear 41 continues to drive the driven gear 43 to rotate, and the driven gear 43 continues to mesh with the starboard rack 53, pushing the hatch cover 2 to continue sliding towards the starboard side 13, so that the drive gear 41 meshes with the intermediate rack 52. As the drive gear 41 continues to rotate, it drives the intermediate rack 52 to move further along the sliding direction of the hatch cover 2, thereby pushing the hatch cover 2 to continue to slide smoothly towards the starboard side 13.

[0058] In this embodiment, the gear assembly 4 includes a driving gear 41, a transition gear 42, and a driven gear 43 that mesh sequentially, thereby effectively ensuring that the gear assembly 4 can smoothly transition from the port rack 51 or the starboard rack 53 to the intermediate rack 52. Specifically, when the port drive 31 or the starboard drive 32 is activated, the driving gear 41 first meshes with the corresponding side rack (port rack 51 or starboard rack 53), causing the hatch cover 2 to begin sliding. As the hatch cover 2 slides, the side rack gradually meshes with the driven gear 43. The driving gear 41 continues to rotate, driving the driven gear 43 to rotate in the same direction through the transition gear 42. As the hatch cover 2 continues to slide, the side rack gradually separates from the driving gear 41, and the driving gear 41 enters the gap between the side rack and the intermediate rack 52. At this point, the driven gear 43 remains engaged with the side rack, continuing to push the hatch cover 2 to slide until the driving gear 41 engages with the intermediate rack 52, achieving a smooth transition. This smooth transition improves the continuity and stability of the hatch cover 2's sliding, while ensuring the reliability and stability of the entire transmission process, meeting the requirements of ore carriers for the rapid and smooth opening and closing of the hatch cover 2 during loading and unloading at anchor.

[0059] See Figure 4 , Figure 7 and Figure 8Preferably, the double-sided opening hatch cover system of this embodiment further includes a lifting structure 8. A through hole 121 is provided on the middle part 12 of the hatch body 1. The lifting structure 8 is located below the middle part 12 and corresponds to the through hole 121. When the hatch cover 2 is located in the middle part 12, the roller 21 is engaged in the through hole 121. The lifting structure 8 is used to push the roller 21 upward to separate the roller 21 from the through hole 121. The roller 21 being engaged in the through hole 121 can effectively prevent the hatch cover 2 from being accidentally displaced when not in operation, ensuring that it is stably located in the closed position of the middle part 12. When it is necessary to open the hatch cover 2, the lifting structure 8 pushes the roller 21 out of the through hole 121, so that the roller 21 can rotate on the hatch body 1, allowing the hatch cover 2 to slide under the action of the driving structure 3. The lifting structure 8 simplifies the opening operation of the hatch cover 2, allowing the roller 21 to quickly disengage from the through hole 121 and enter a sliding state. In this embodiment, the lifting structure 8 consists of a lifting cylinder 81 and a lifting block 82 connected to the output shaft of the lifting cylinder. When the roller 21 is engaged in the through hole 121, the upper surface of the lifting block 82 abuts against the roller 21. After the lifting cylinder 81 is activated, the output shaft of the lifting cylinder 81 drives the lifting block 82 to rise until the upper surface of the lifting block 82 is flush with the upper surface of the hatch body 1, thereby pushing the roller 21 to move upward and disengage from the through hole 121; when the hatch cover 2 slides back from the port side 11 or the starboard side 13 to the initial position of the middle part 12, the lifting block 82 remains flush with the upper surface of the hatch body 1. When the roller 21 moves to abut against the upper surface of the lifting block 82, the output shaft of the lifting cylinder 81 drives the lifting block 82 to move downward, thereby the roller 21 descends with the lifting block 82 and is engaged in the through hole 121. Furthermore, the hatch body 1 has guide plates 83 fixedly connected to both sides of the lifting block 82. The guide plates 83 have guide grooves along the sliding direction of the lifting block 82. The two sides of the lifting block 82 are slidably connected to the guide grooves of the guide plates 83, thereby enabling the lifting block 82 to maintain good stability during the lifting process, preventing it from deviating or shaking in the vertical direction, and ensuring that the roller 21 is accurately pushed out or locked.

[0060] See Figure 4 , Figure 9 and Figure 10Preferably, the double-sided opening hatch cover system of this embodiment further includes a limiting structure 9. The limiting structure 9 includes a limiting engagement part 91 connected to the hatch cover plate 2 and a limiting component 92 disposed in the middle part 12. The limiting component 92 is used to form a stop engagement with the limiting engagement part 91. When the hatch cover plate 2 slides from the port side 11 or the starboard side 13 to the initial position of the middle part 12, the limiting engagement part 91 contacts the limiting component 92, and the limiting engagement part 91 and the limiting component 92 form a tight stop engagement, effectively preventing the hatch cover plate 2 from continuing to slide and ensuring that it stops accurately at the preset stop position. This prevents the hatch cover plate 2 from sliding excessively and ensures that the hatch cover plate 2 stops accurately at the initial position of the middle part 12, improving the accuracy and reliability of the operation.

[0061] See Figure 4 , Figure 9 and Figure 10 Preferably, the limiting assembly 92 includes a limiting base 921 and a limiting block 922. Limiting bases 921 are provided on both the left and right sides of the limiting mating part 91. The limiting blocks 922 are movably disposed on the limiting bases 921 on both sides of the limiting mating part 91, and are used to form a stop engagement with the limiting mating part 91. When it is necessary to slide the hatch cover 2 from the middle part 12 to the port side 11, the operator places the limiting block 922 on the limiting base 921 on the right side of the limiting mating part 91. At this time, the limiting base 921 on the left side of the limiting mating part 91 has sufficient space for the limiting mating part 91 to pass through. Therefore, when the hatch cover 2 slides towards the port side 11, the limiting mating part 91 can smoothly pass through the limiting base 921 on the left side without being obstructed. When the hatch cover 2 slides back from the port side 11 to the mid-section 12, the limiting block 922, placed on the limiting base 921 on the right side of the limiting mating part 91, abuts against the limiting mating part 91, forming a stop, thereby ensuring that the hatch cover 2 is accurately positioned in the initial position of the mid-section 12 and preventing excessive sliding of the hatch cover 2. Correspondingly, when it is necessary to slide the hatch cover 2 from the mid-section 12 to the starboard side 13, the operator places the limiting block 922 on the limiting base 921 on the left side of the limiting mating part 91. Furthermore, buffer devices 911 are provided on both the left and right sides of the limiting mating part 91, and the buffer devices 911 are fixedly connected to the limiting mating part 91 by bolt assemblies. During the sliding of the hatch cover 2, the limiting mating part 91 abuts against the limiting block 922 through the buffer devices 911 to form a stop engagement. When the buffer device 911 of the limiting mating part 91 contacts the limiting block 922, the buffer device 911 can play a buffering role, making the sliding and limiting process of the hatch cover 2 more stable, and improving the reliability and safety of operation.

[0062] See Figure 11Preferably, the limiting structure 9 further includes positioning components 93 respectively provided on the port side 11 and the starboard side 13. The limiting mating part 91 has a first pin hole 91a, and the positioning component 93 has a second pin hole 93a. When the hatch cover 2 slides from the middle part 12 to the port side 11 or the starboard side 13 to the fully open position, the limiting mating part 91 and the positioning component 93 form a stop engagement, and the first pin hole 91a of the limiting mating part 91 and the second pin hole 93a of the positioning component 93 are connected. By providing positioning components 93 on the port side 11 and the starboard side 13, when the hatch cover 2 slides from the middle part 12 to the port side 11 or the starboard side 13 to the fully open position, the positioning component 93 abuts against the limiting mating part 91 on the hatch cover 2 to achieve a stop, thereby preventing the hatch cover 2 from sliding further and ensuring that the hatch cover 2 is stably docked in the fully open position, thus achieving precise positioning of the hatch cover 2. At this time, the first pin hole 91a of the limiting mating part 91 is connected to the second pin hole 93a of the positioning component 93. By inserting the pin, the hatch cover 2 is further fixed, preventing the hatch cover 2 from accidentally sliding. This ensures the stability of the hatch cover 2 in the open state, improves the safety and reliability of operation, and facilitates the quick locking and releasing of the hatch cover 2 by the staff, thus improving work efficiency.

[0063] See Figure 4 and Figure 12 Preferably, the double-sided opening hatch cover system of this embodiment further includes a clamping device 10. The clamping device 10 is disposed on the hatch body 1. When the hatch cover 2 is located in the middle part 12 of the hatch body 1, the clamping device 10 is used to press and fix the hatch cover 2 to the hatch body 1. The clamping device 10 firmly fixes the hatch cover 2 to the hatch body 1, preventing the hatch cover 2 from loosening or even opening accidentally. The continuous pressure applied by the clamping device 10 can ensure that the hatch cover 2 fits tightly against the hatch body 1. Even when the ship is violently rocking, it can effectively prevent the hatch cover 2 from loosening or misaligning, reducing the risk of the hatch cover 2 opening accidentally due to external forces, thereby ensuring the safety and reliability of the hatch cover system.

[0064] The working process of the double-sided opening hatch cover system in this embodiment is as follows:

[0065] Initial state: The hatch cover 2 is located in the middle part 12 of the hatch body 1. At this time, the cargo hatch is covered by the hatch cover 2 and is in a closed state.

[0066] When the hatch cover 2 slides open from the middle section 12 toward the port side 11 or the starboard side 13: the lifting structure 8 is activated, the lifting cylinder 81 is activated, the lifting block 82 rises, pushing the roller 21 upward, causing the roller 21 to disengage from the through hole 121; the drive structure 3 is activated, and when the hatch cover 2 slides toward the port side 11, the port side drive component 31 is activated, and the drive gear 41 at the output end of the port side drive component 31 rotates. The drive gear 41 meshes with the port side rack 51 and the middle rack 52, driving the hatch cover 2 to begin sliding toward the port side 11. When the hatch cover 2 slides toward the starboard side 13, the starboard drive component 32 is activated, and the drive gear 41 at the output end of the starboard drive component 32 rotates. The drive gear 41 meshes with the starboard side rack 53 and the middle rack 52, driving the hatch cover 2 to begin sliding toward the starboard side 13.

[0067] Final positioning of hatch cover 2 after opening: When hatch cover 2 reaches the fully opened position of port side 11 or starboard side 13, the limiting engagement part 91 and the corresponding positioning component 93 form a stop engagement. The first pin hole 91a of the limiting engagement part 91 is connected to the second pin hole 93a of the positioning component 93, and the hatch cover 2 is further fixed by inserting the pin to prevent it from slipping accidentally.

[0068] When the hatch cover 2 slides back from the port side 11 or starboard side 13 to the mid-section 12: Pull out the pin to release the fixing of the limiting engagement 91 and the positioning assembly 93. Activate the drive structure 3. When the hatch cover 2 slides back from the port side 11 to the mid-section 12, the starboard drive 32 is activated, and the drive gear 41 at the output end of the starboard drive 32 rotates. The drive gear 41 meshes with the starboard rack 53 and the intermediate rack 52, driving the hatch cover 2 to slide towards the mid-section 12. When sliding back from the starboard side 13 to the mid-section 12, the port drive 31 is activated, and the drive gear 41 at the output end of the port drive 31 rotates. The drive gear 41 meshes with the port rack 51 and the intermediate rack 52, driving the hatch cover 2 to slide towards the mid-section 12.

[0069] Final positioning of hatch cover 2 after closing: When hatch cover 2 reaches the middle part 12, the limiting mating part 91 contacts the limiting component 92 and forms a stop engagement, ensuring that hatch cover 2 stops accurately and stably. The output shaft of the lifting cylinder 81 drives the lifting block 82 to descend, causing the roller 21 to re-engage in the through hole 121. The clamping device 10 presses the hatch cover 2, ensuring that the hatch cover 2 fits tightly against the hatch body 1.

[0070] Based on the double-sided opening hatch cover system of this utility model, this utility model embodiment also provides a ship, which includes the double-sided opening hatch cover system described above.

[0071] See Figure 13The hatch cover system is installed on the ship along the width direction. In the initial state, the hatch cover 2 is located in the middle part 12 of the hatch body 1, and the cargo hold is in the closed state. When it is necessary to open the cargo hold for loading and unloading operations, the drive structure 3 is operated according to the specific opening requirements to slide the hatch cover 2 to the port side 11 or the starboard side 13, thereby opening the cargo hold.

[0072] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A hatch cover system that opens from both sides, characterized in that, include: The hatch body (1) includes a port side section (11), a midship section (12) and a starboard side section (13) connected sequentially along the width of the ship. Hatch cover (2), the hatch cover (2) is provided with rollers (21), the hatch cover (2) is slidably connected to the hatch body (1) through the rollers (21); The drive structure (3) includes a port drive (31) located on the left side of the hatch cover (2) and a starboard drive (32) located on the right side of the hatch cover (2). The output ends of the port drive (31) and the starboard drive (32) are respectively connected to gear assemblies (4). A rack (5) extending horizontally is connected to the hatch cover (2). The port drive (31) and the starboard drive (32) are respectively driven by meshing with the rack (5) through the corresponding gear assemblies (4). The drive structure (3) is used to drive the hatch cover (2) to slide from the middle part (12) to the port part (11) or the starboard part (13).

2. The double-sided opening hatch cover system according to claim 1, characterized in that: The rack (5) includes a port rack (51), a middle rack (52) and a starboard rack (53) arranged at intervals; The port rack (51) is connected to the left side of the hatch cover (2), the middle rack (52) is connected to the middle section of the hatch cover (2), and the starboard rack (53) is connected to the right side of the hatch cover (2). The port side drive unit (31) is driven by the gear assembly (4) in sequence to mesh with the port side rack (51) and the middle rack (52), and the starboard side drive unit (32) is driven by the gear assembly (4) in sequence to mesh with the starboard side rack (53) and the middle rack (52).

3. The double-sided opening hatch cover system according to claim 2, characterized in that, It also includes a port drive arm (6) and a starboard drive arm (7). The port rack (51) is located on the port drive arm (6) and is connected to the left side of the hatch cover (2) through the port drive arm (6). The starboard rack (53) is located on the starboard drive arm (7) and is connected to the right side of the hatch cover (2) through the starboard drive arm (7).

4. The double-sided opening hatch cover system according to claim 2, characterized in that: The gear assembly (4) includes a driving gear (41), a transition gear (42), and a driven gear (43) that mesh in sequence; The driving gear (41) and the driven gear (43) rotate in the same direction; The output ends of the port side drive unit (31) and the starboard side drive unit (32) are respectively connected to the corresponding drive gear (41); The port side drive component (31) is connected to the port side rack (51) and the intermediate rack (52) in sequence through the corresponding drive gear (41) and driven gear (43); The starboard drive unit (32) is engaged with the starboard rack (53) and the intermediate rack (52) in sequence through the corresponding drive gear and driven gear.

5. The double-sided opening hatch cover system according to claim 1, characterized in that, It also includes a lifting structure (8). A through hole (121) is provided on the middle part (12) of the hatch body (1). The lifting structure (8) is located below the middle part (12) and corresponds to the through hole (121). When the hatch cover plate (2) is located in the middle part (12), the roller (21) is engaged in the through hole (121). The lifting structure (8) is used to push the roller (21) upward to separate the roller (21) from the through hole (121).

6. The double-sided opening hatch cover system according to claim 1, characterized in that, It also includes a limiting structure (9), which includes a limiting mating part (91) connected to the hatch cover (2) and a limiting component (92) provided in the middle part (12). The limiting component (92) is used to form a stop mating with the limiting mating part (91).

7. The double-sided opening hatch cover system according to claim 6, characterized in that, The limiting component (92) includes a limiting base (921) and a limiting block (922). The limiting base (921) is provided on both the left and right sides of the limiting mating part (91). The limiting block (922) is movably disposed on the limiting base (921) on both sides of the limiting mating part (91). The limiting block (922) is used to form a stop fit with the limiting mating part (91).

8. The double-sided opening hatch cover system according to claim 6, characterized in that, The limiting structure (9) further includes positioning components (93) respectively provided on the port side (11) and the starboard side (13). The limiting mating part (91) is provided with a first pin hole (91a), and the positioning component (93) is provided with a second pin hole (93a). When the hatch cover (2) slides from the middle part (12) to the port side (11) or the starboard side (13) to the fully open position, the limiting mating part (91) and the positioning component (93) form a stop fit, and the first pin hole (91a) of the limiting mating part (91) and the second pin hole (93a) of the positioning component (93) are connected.

9. The double-sided opening hatch cover system according to claim 1, characterized in that, It also includes a clamping device (10), which is disposed on the hatch body (1). When the hatch cover (2) is located in the middle part (12) of the hatch body (1), the clamping device (10) is used to press and fix the hatch cover (2) to the hatch body (1).

10. A ship, characterized in that, Includes a hatch cover system that opens from both sides as described in any one of claims 1 to 9.

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