Bulk cargo ship cargo hold cover

Abstract

The cargo hold hatch cover of the bulk cargo ship comprises a ship body, a cargo hold is arranged in the ship body, telescopic hatch covers are arranged on the two sides, located above an opening of the cargo hold, of the ship body, a fixed hatch cover is arranged on the side, located on the outer side of the opening of the cargo hold, of each telescopic hatch cover, and a containing cavity is formed in each fixed hatch cover. By means of the structure, the problems that the driving mode of the cabin cover is not convenient enough, and the space utilization rate of the cabin cover is not high enough are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cargo ship hatch covers, in particular to a bulk carrier cargo hold hatch cover. Background Art

[0002] The cargo hatch cover, also known as the large hatch cover, is a hatch cover installed on the cargo hold, mainly used to ensure the watertightness of the hull and the safety of the cargo in the hold. In addition to the function of sealing the hatch, it also has a certain ability to resist pressure and can protect the cargo from external factors such as seawater and rain. There are various types of bulk carrier cargo hatch covers, which are mainly selected according to factors such as ship type, cargo type, loading and unloading method, etc. Common types of hatch covers include rolling, folding and lifting types. The material of the cargo hold hatch cover is generally metal or wood.

[0003] For example, the Chinese patent "A hatch cover mechanism suitable for all-electric propulsion bulk carriers" with announcement number CN207617924U includes a hatch cover, an electric motor, which is located at the bow and stern ends of the hatch cover and provides power for the hatch cover mechanism; a traction device, which is connected to the electric motor and is located on the left and right sides of the hatch cover to drive the hatch cover to move forward or backward; at least four groups of roller assemblies, which are supported on the bottom of the hatch cover; a track assembly, which is located below the roller assembly, so that the hatch cover is supported by the roller assembly and moves forward or backward along the track assembly under the action of the traction device; a control system, which is electrically connected to the traction device and is used to control the start or shut down of the traction device. The hatch cover mechanism also includes a transmission rod assembly, which is located at the bow and stern ends of the hatch cover and is used to move the hatch cover forward or backward. The torque output by the motor is synchronously transmitted to the traction devices on the left and right sides of the hatch cover. The hatch cover mechanism also includes a reducer connected to the motor for transmitting the motor torque to the traction device. The traction device includes a traction rope, a large sprocket connected to the reducer, a small sprocket fixed to the main deck, and a traction rope pulley; one end of the traction rope is connected to one end of the hatch cover, passes through the large sprocket and the small sprocket in sequence, passes through the bottom of the hatch cover longitudinally, and is connected to the other end of the hatch cover. There are two sets of transmission rod assemblies, which are laterally symmetrically distributed relative to the reducer; each set of transmission rod assemblies includes a transmission rod, a bearing, a connecting shaft, and a universal coupling connected in sequence; the transmission rod is connected to the large sprocket, and the universal coupling is connected to the reducer.

[0004] Although the above-mentioned prior art can cover the cargo hold, in actual use, on the one hand, the driving method of the hatch cover is not convenient enough. The hatch cover as a whole is composed of three parts, which means that when the hatch cover is closed and opened, one part needs to drive the remaining two parts to move, thereby affecting the working efficiency of the hatch cover. On the other hand, the space utilization rate of the hatch cover is not high enough. When the hatch cover is opened, the part where the hatch cover is fixed to the hull blocks the opening of the cargo hold, making it difficult to fully open the cargo hold opening, thereby reducing the space utilization rate of the cargo hold opening. Therefore, it does not meet the existing needs. In this regard, we propose a bulk carrier cargo hold hatch cover. Utility Model Content

[0005] The utility model aims to provide a bulk carrier cargo hold hatch cover to solve the problems that the hatch cover driving method proposed in the above background technology is not convenient enough and the space utilization rate of the hatch cover is not high enough.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bulk carrier cargo hold hatch cover, comprising a hull, a cargo hold is arranged inside the hull, telescopic hatch covers are arranged on both sides of the hull above the cargo hold opening, a fixed hatch cover is arranged on one side of the telescopic hatch cover located outside the cargo hold opening, a storage cavity is arranged inside the fixed hatch cover, and one side of the telescopic hatch cover extends to the interior of the storage cavity.

[0007] Preferably, limit strips are fixedly provided at the front and rear ends of the telescopic hatch cover, and the limit strips slide and limit with the storage cavity.

[0008] Preferably, a connecting plate is fixed to one side of the limiting bar located outside the storage cavity, and the connecting plate is fixedly connected to the limiting bar.

[0009] Preferably, mounting seats are fixedly provided at the front and rear ends of one side of the fixed hatch cover, a hydraulic telescopic device is fixedly provided on one side of the mounting seat, and the telescopic end of the hydraulic telescopic device extends to the other side of the mounting seat and is fixedly connected to the connecting plate.

[0010] Preferably, a reinforcement seat is fixedly provided on the outside of the fixed end of the hydraulic telescopic device, and one end of the reinforcement seat is fixedly connected to the fixed hatch cover.

[0011] Preferably, mounting ear plates are provided at the front and rear ends of one side of the fixed hatch cover, a rotating rod is provided inside the mounting ear plate, one end of the rotating rod is rotatably connected to the mounting ear plate, and the other end of the rotating rod is fixedly connected to the fixed hatch cover, and a driving motor is fixedly provided inside the mounting ear plate, and the output shaft of the driving motor extends to the outside of the mounting ear plate and is fixedly connected to the rotating rod.

[0012] Preferably, a rubber strip is provided on one side of the telescopic hatch cover located outside the storage cavity, the rubber strip is connected to the telescopic hatch cover by glue, and the rubber strips on both sides are in contact with each other.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model can make the telescopic hatch cover open and close quickly through the telescopic hatch cover and the hydraulic telescopic device. When it is necessary to open the cargo hold, the hydraulic telescopic devices on both sides are synchronously opened to make the telescopic ends of the hydraulic telescopic devices contract, and the telescopic hatch cover is driven to move toward the inside of the storage cavity through the contraction of the telescopic ends of the hydraulic telescopic devices. At the same time, the limit bars at the front and rear ends of the telescopic hatch cover are slid and limited with the storage cavity until the telescopic hatch cover moves to a suitable position. At this time, the cargo hold opening is opened, and the cargo is loaded through the cargo hold opening. At this time, if it is necessary to close the cargo hold, the hydraulic telescopic device is synchronously opened again to make the telescopic ends of the hydraulic telescopic device extend, and the telescopic hatch cover is driven to move out of the storage cavity through the extension of the telescopic ends of the hydraulic telescopic device until the telescopic hatch covers on both sides are fitted together, so that the opening and closing of the cargo hold opening is more flexible, thereby improving the efficiency of opening and closing the cargo hold.

[0015] 2. The utility model can rotate the fixed hatch cover through the driving motor and the rotating rod. When it is necessary to fully open the cargo hold to load large cargo, the telescopic hatch cover is first retracted into the storage cavity. At this time, the driving motor is turned on so that the output shaft of the driving motor drives the rotating rod to rotate, and the driving motors on both sides are energized in opposite directions. At this time, the fixed hatch cover is driven by the rotating rod to rotate together with the telescopic hatch cover, and the fixed hatch cover is rotated to a horizontal state. At this time, the cargo hold opening is completely exposed, and large cargo can be loaded, preventing the cargo hold opening from being too small to load large cargo, and at the same time improving the space utilization rate of the cargo hold opening.

[0016] 3. The utility model can protect the telescopic hatch cover by providing a rubber strip. When the telescopic hatch cover is extended, the telescopic hatch covers on both sides gradually move toward the center of the cargo hold until the telescopic hatch covers on both sides move to a suitable position. At this time, the rubber strips on the telescopic hatch covers are in contact, and the telescopic hatch covers continue to move for a distance, so that the rubber strips on both sides are fitted together, avoiding direct contact and damage of the telescopic hatch covers when closing, thereby extending the service life of the telescopic hatch covers. At the same time, the rubber strips can improve the sealing between the telescopic hatch covers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the internal structure of the utility model;

[0018] Figure 2 It is a side view of the internal structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the hatch cover structure of the utility model;

[0020] Figure 4 For the utility model Figure 2 A partial enlarged view of the middle A area;

[0021] In the figure: 1. hull; 2. cargo hold; 3. mounting ear plate; 4. rotating rod; 5. fixed hatch cover; 6. mounting seat; 7. hydraulic telescopic device; 8. reinforcement seat; 9. telescopic hatch cover; 10. rubber strip; 11. limit strip; 12. connecting plate; 13. driving motor; 14. storage cavity. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-4 The utility model provides an embodiment: a bulk carrier cargo hold hatch cover, comprising a hull 1, a cargo hold 2 is arranged inside the hull 1, telescopic hatch covers 9 are arranged on both sides of the hull 1 above the opening of the cargo hold 2, a fixed hatch cover 5 is arranged on one side of the telescopic hatch cover 9 located outside the opening of the cargo hold 2, a storage cavity 14 is arranged inside the fixed hatch cover 5, and one side of the telescopic hatch cover 9 extends to the inside of the storage cavity 14.

[0024] During use, when it is necessary to open the cargo hold 2, the hydraulic telescopic devices 7 on both sides are opened synchronously to make the telescopic ends of the hydraulic telescopic devices 7 retract, and the telescopic hatch cover 9 is driven to move toward the inside of the storage cavity 14 through the contraction of the telescopic ends of the hydraulic telescopic devices 7. At the same time, the limit strips 11 at the front and rear ends of the telescopic hatch cover 9 slide and limit with the storage cavity 14 until the telescopic hatch cover 9 moves to a suitable position. At this time, the cargo hold 2 is opened, and the cargo is loaded through the opening of the cargo hold 2. If it is necessary to close the cargo hold 2 at this time, the hydraulic telescopic device 7 is opened again synchronously to make the telescopic ends of the hydraulic telescopic device 7 extend, and the telescopic hatch cover 9 is driven to move outside the storage cavity 14 through the extension of the telescopic ends of the hydraulic telescopic device 7 until the telescopic hatch covers 9 on both sides are fitted together.

[0025] See also Figure 2 and Figure 3 The front and rear ends of the telescopic hatch cover 9 are fixedly provided with limit strips 11, and the limit strips 11 and the storage cavity 14 are slidably limited, so that the telescopic hatch cover 9 can be slidably limited by the limit strips 11.

[0026] See also Figure 2 and Figure 3 A connecting plate 12 is fixed to one side of the limiting strip 11 outside the storage cavity 14 , and the connecting plate 12 is fixedly connected to the limiting strip 11 , so that the connecting plate 12 is conveniently fixed to the telescopic end of the hydraulic telescopic device 7 .

[0027] See also Figure 1 and Figure 3A mounting seat 6 is fixedly provided at the front and rear ends of one side of the exterior of the fixed hatch cover 5, a hydraulic telescopic device 7 is fixedly provided on one side of the mounting seat 6, and the telescopic end of the hydraulic telescopic device 7 extends to the other side of the mounting seat 6 and is fixedly connected to the connecting plate 12, so as to facilitate the telescopic hatch cover 9 to be driven to move by the hydraulic telescopic device 7.

[0028] See also Figure 1 and Figure 3 A reinforcement seat 8 is fixedly arranged on the outside of the fixed end of the hydraulic telescopic device 7, and one end of the reinforcement seat 8 is fixedly connected to the fixed hatch cover 5, so that the hydraulic telescopic device 7 can be installed more stably through the reinforcement seat 8.

[0029] See also Figure 1 , Figure 2 and Figure 3 A mounting ear plate 3 is provided at the front and rear ends of one side of the fixed hatch cover 5, a rotating rod 4 is provided inside the mounting ear plate 3, one end of the rotating rod 4 is rotatably connected to the mounting ear plate 3, and the other end of the rotating rod 4 is fixedly connected to the fixed hatch cover 5, and a driving motor 13 is fixedly provided inside the mounting ear plate 3, and the output shaft of the driving motor 13 extends to the outside of the mounting ear plate 3 and is fixedly connected to the rotating rod 4, so that the fixed hatch cover 5 can be driven to rotate by the driving motor 13.

[0030] See also Figure 1 and Figure 3 A rubber strip 10 is provided on one side of the telescopic hatch cover 9 outside the storage cavity 14. The rubber strip 10 is connected to the telescopic hatch cover 9 by glue. The rubber strips 10 on both sides are in contact with each other, so that the rubber strip 10 can provide buffering for the connection of the telescopic hatch cover 9.

[0031] Working principle: when it is necessary to fully open the cargo hold 2 for loading large cargo, first retract the telescopic hatch cover 9 into the storage cavity 14, then turn on the drive motor 13, so that the output shaft of the drive motor 13 drives the rotating rod 4 to rotate, and the driving motors 13 on both sides are energized in opposite directions, at this time, the rotating rod 4 drives the fixed hatch cover 5 to rotate together with the telescopic hatch cover 9, and rotates the fixed hatch cover 5 to a horizontal state. At this time, the cargo hold 2 is completely exposed, and large cargo can be loaded. When the telescopic hatch cover 9 is extended, the telescopic hatch covers 9 on both sides gradually move toward the center of the cargo hold 2 until the telescopic hatch covers 9 on both sides move to a suitable position. At this time, the rubber strips 10 on the telescopic hatch covers 9 are in contact, and the telescopic hatch covers 9 continue to move a distance so that the rubber strips 10 on both sides fit together.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A bulk carrier cargo hold hatch cover, comprising a hull (1), characterized in that: A cargo hold (2) is arranged inside the hull (1), and telescopic hatch covers (9) are arranged on both sides of the hull (1) above the opening of the cargo hold (2). A fixed hatch cover (5) is arranged on one side of the telescopic hatch cover (9) located outside the opening of the cargo hold (2), and a storage cavity (14) is arranged inside the fixed hatch cover (5), and one side of the telescopic hatch cover (9) extends to the inside of the storage cavity (14).

2. A bulk carrier cargo hold hatch cover according to claim 1, characterized in that: Limiting strips (11) are fixedly arranged at the front and rear ends of the telescopic hatch cover (9), and the limiting strips (11) and the storage cavity (14) are slidably limited.

3. A bulk carrier cargo hold hatch cover according to claim 2, characterized in that: A connecting plate (12) is fixed to one side of the limiting strip (11) located outside the storage cavity (14), and the connecting plate (12) is fixedly connected to the limiting strip (11).

4. A bulk carrier cargo hold hatch cover according to claim 3, characterized in that: A mounting seat (6) is fixedly provided at the front and rear ends of one side of the exterior of the fixed hatch cover (5), a hydraulic telescopic device (7) is fixedly provided at one side of the mounting seat (6), and the telescopic end of the hydraulic telescopic device (7) extends to the other side of the mounting seat (6) and is fixedly connected to the connecting plate (12).

5. A bulk carrier cargo hold hatch cover according to claim 4, characterized in that: A reinforcement seat (8) is fixedly provided outside the fixed end of the hydraulic telescopic device (7), and one end of the reinforcement seat (8) is fixedly connected to the fixed hatch cover (5).

6. A bulk carrier cargo hold hatch cover according to claim 1, characterized in that: The front and rear ends of one side of the fixed hatch cover (5) are both provided with mounting ear plates (3), a rotating rod (4) is provided inside the mounting ear plate (3), one end of the rotating rod (4) is rotatably connected to the mounting ear plate (3), and the other end of the rotating rod (4) is fixedly connected to the fixed hatch cover (5), and a driving motor (13) is fixedly provided inside the mounting ear plate (3), and an output shaft of the driving motor (13) extends to the outside of the mounting ear plate (3) and is fixedly connected to the rotating rod (4).

7. A bulk carrier cargo hold hatch cover according to claim 1, characterized in that: A rubber strip (10) is provided on one side of the telescopic hatch cover (9) located outside the storage cavity (14); the rubber strip (10) is connected to the telescopic hatch cover (9) by glue, and the rubber strips (10) on both sides are in contact with each other.

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