Container supporting device for bulk carrier

Abstract

The invention relates to the technical field of container ships, in particular to a container supporting device for a bulk carrier. The container stacking device comprises a bottom supporting piece and a side supporting piece which are used for being installed in a cargo hold, the bottom supporting piece and the side supporting piece are symmetrically arranged on the two sides of a hatch, the top of the bottom supporting piece is used for stacking containers, and the bottom supporting piece is horizontally arranged at the bottom in the cargo hold in a movable mode. The bottom supporting pieces and the side supporting pieces are independently arranged on the two sides of the hatch, so that a plurality of areas for stacking the containers are formed between the tops of the two bottom supporting pieces and between the two bottom supporting pieces, and therefore the number of the containers is shared. Moreover, the two side supporting pieces are connected through the container in the middle, displacement force is transmitted through the container in the middle, the problem that the containers are stacked high is solved, and the two side supporting pieces can jointly restrain one-way displacement of the containers.

Description

Technical Field

[0001] This invention relates to the field of container ship technology, and more specifically, to a container support device for bulk carriers. Background Technology

[0002] Bulk carriers are short for bulk cargo ships, specifically designed to transport various unpackaged bulk cargoes such as coal, ore, timber, livestock, and grain. Generally, besides containers or construction machinery loaded on the hatches, bulk carriers can only carry a small amount of general cargo in their holds, thus not fully realizing their economic advantages. Therefore, more and more shipping companies are looking to load as many containers as possible into the cargo holds to significantly improve the operational economics of bulk carriers.

[0003] The hatch dimensions of standard bulk carriers are typically smaller than their internal structural dimensions. This structural feature prevents containers from being placed outside the hatch area using conventional lifting equipment. Therefore, the common practice is to confine containers to the vertical projection area of ​​the hatch for stacking.

[0004] To ensure the stability of containers during maritime transport, vertical support frames are typically installed inside the cargo hold to provide lateral restraint to the container. The bottom of the support frame is fixed to the bottom structure of the cargo hold, and the top extends to near the hatch coaming, contacting the container sidewalls. However, this support method has the following structural drawbacks: Firstly, it can only perform one-way restraint. Although the support frames are distributed on both sides of the container, when lateral displacement occurs, only one side of the support frame can actually play a restraining role, while there is a gap on the other side, which cannot form an effective two-way restraint mechanism and has limited anti-sway capability. Secondly, stacking containers increases the risk. Since all containers are concentrated in the area below the hatch, a higher stacking layer is necessary to increase the single-trip carrying capacity. This results in the upper containers generating significant overturning moments and horizontal inertial forces during ship movement, exacerbating the risk of container displacement and posing a severe challenge to the support structure and stabilization system. Summary of the Invention

[0005] The purpose of this invention is to provide a container support device for bulk carriers, which forms multiple areas for container stacking by separately setting bottom support members and side support members on both sides of the hatch, thereby solving the problems mentioned in the background art, namely, that the support frame can only be limited in one direction and that the stacking height of containers increases the risk.

[0006] To achieve the above objectives, a container support device for bulk carriers includes bottom supports and side supports for installation within the cargo hold, wherein the bottom supports and side supports are symmetrically arranged on both sides of the hatch, wherein: The top of the bottom support is used for stacking containers, and the bottom support is movably and horizontally set at the bottom of the cargo hold to drive the top container out of the vertical projection range of the hatch; when both bottom supports are out of the vertical projection range of the hatch, the adjacent ends of the two bottom supports form a support for stacking containers, and the number of containers is distributed through the support parts at the top and ends of the bottom supports. The bottom of the side support is fixedly connected to the bottom support, and the top extends to the side wall of the hatch and is connected to a locking mechanism. The locking mechanism is used to fix the top of the side support to the side wall of the hatch. The two bottom supports are connected by a container, so that the two side supports together constrain the unidirectional displacement of the container; The distance between the two support sections located on either side of the hatch is less than the length or width of the container.

[0007] In the above technical solution, the bottom support moves to directly below the hatch to receive the hoisted container, and then moves the container, causing some of the container to move away from directly below the hatch, thereby increasing the container stacking area and preventing the containers from being stacked too high. Furthermore, the two side supports are connected by the container in the middle section, allowing both side supports to participate in the restraint process of the container.

[0008] Based on this, the bottom support extends outward from one end near the side support to form a support part; both the top of the bottom support and the top of the support part are provided with a fixing lock for connecting with the container. The fixing lock strengthens the connection between the bottom support and the container and improves the stability after stacking.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: In this container support system for bulk carriers, separate bottom and side supports are installed on both sides of the hatch, creating multiple areas for container stacking at the top of the two bottom supports and between them, thus distributing the number of containers. Furthermore, the two side supports are connected by a container in the middle section, which transmits displacement forces. This not only avoids the problem of excessively high container stacking but also allows the two side supports to jointly constrain the unidirectional displacement of the containers. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the working state of the bottom support member of the present invention; Figure 3 This is a schematic diagram of the bottom support component of the present invention; Figure 4 This is a schematic diagram of the roller structure of the present invention; Figure 5 This is a schematic diagram of the structure of the fixed lock of the present invention; Figure 6 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 7 This is a schematic diagram of the connecting frame of the present invention; Figure 8 This is a schematic diagram showing the position of the side support member of the present invention; Figure 9 This is a schematic diagram of the locking mechanism of the present invention.

[0011] The meanings of the labels in the diagram are as follows: 100. Bottom support; 101. Support part; 102. Insert rod; 103. Roller; 104. Connecting frame; 110. Side support; 120. Fixing lock; 121. Base; 122. Locking rod; 123. Torsion bar; 130. Locking mechanism; 131. Base; 132. Adjusting screw; 133. Collar; 200. Cargo hold; 201. Hatch; 202. Bottom hole. Detailed Implementation

[0012] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, 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. Therefore, they should not be construed as limitations on this invention.

[0014] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0015] This invention provides a container support device for bulk carriers. For example... Figure 1 As shown, the bulk carrier includes a cargo hold 200 and a hatch 201. The hatch 201 is located on top of the cargo hold 200 and is square in shape. A hatch cover is provided on top of the hatch 201, which can open or close the hatch 201. The opening size of the hatch 201 is smaller than the internal size of the cargo hold 200. Since the lifting equipment is basically vertical, it is difficult to place containers outside the area of ​​the hatch 201, thus restricting the containers to be stacked within the vertical projection range of the hatch 201.

[0016] This addresses the issues of current support frames only being able to provide unidirectional positioning and the increased risk associated with stacking containers. For example... Figure 1 As shown, the support device of the present invention includes a bottom support 100 and a side support 110 for installation within the cargo hold 200. The bottom support 100 and the side support 110 are symmetrically arranged on both sides of the hatch 201. The bottom support 100 is movably and horizontally positioned at the bottom of the cargo hold 200, for entering or exiting the vertical projection range of the hatch 201. A reference is provided for the state of the bottom support 100 entering the vertical projection range of the hatch 201. Figure 2 The dotted line indicates that the top of the bottom support 100 in this state is used for stacking containers. Reference is made to the state where the bottom support 100 is outside the vertical projection range of the hatch 201. Figure 2 The solid line indicates that the bottom support 100 causes the top-stacked container to move out of the vertical projection range of the hatch 201. And, returning to... Figure 1 When both bottom supports 100 are outside the vertical projection range of the hatch 201, the adjacent ends of the two bottom supports 100 form support portions 101 for container stacking. In this design, the number of containers is distributed through the support portions 101 at the top and ends of the bottom supports 100 to reduce the stacking height of the containers. Furthermore, when the containers press against the support portions 101 of the two bottom supports 100, the two bottom supports 100 are connected to each other through the containers. Next, the side supports 110 are vertically arranged, with their bottoms fixedly connected to the bottom supports 100 and their tops extending to the side wall of the hatch 201. A locking mechanism 130 is provided at the top of the side supports 110 to fix the top of the side supports 110 to the side wall of the hatch 201. When the containers connect the two bottom supports 100, the two side supports 110 together constrain the unidirectional displacement of the containers.

[0017] Specifically, the length of the side support 110 corresponds to the length or width of the container. Figure 3In the illustrated embodiment, the length of the bottom support 100 corresponds to the length of the container, accommodating the wider cargo hold 200. Furthermore, considering assembly efficiency and space requirements, both the bottom support 100 and the side support 110 in this design are plate-like structures. Two sets of bottom support 100 are provided for each container's bottom, located on both sides of the container's bottom (specifically directly below the container's bottom opening 202). The combined support of the two bottom support 100s on both sides of the container's bottom prevents the container from tipping over.

[0018] exist Figure 3 In this design, the bottom of the side support member 110 is fixedly mounted on the top of the bottom support member 100 near the hatch 201, and the bottom support member 100 extends outward from the end near the side support member 110 to form a support portion 101. The distance between the two support portions 101 located on both sides of the hatch 201 is less than the length or width of the container. This allows the end of the container to be pressed against the top of the support portion 101, thereby connecting the two bottom support members 100. However, directly pressing the container against the bottom support member 100 and the top of the support portion 101 is not secure. Therefore, this invention provides a fixing lock 120 at the top of the bottom support member 100 and the top of the support portion 101 corresponding to the bottom hole 202, enabling a secure connection between the container and the bottom support member 100 and the insertion rod 102. The specific structure of the fixing lock 120 is as follows: like Figure 5 As shown, the fixing lock 120 includes a base 121 fixedly mounted on the top of the bottom support 100 and the support part 101. The top of the base 121 has a vertical rotating hole, within which a locking rod 122 is rotatably mounted. The top of the locking rod 122 protrudes from the top of the base 121, and the locking rod 122 has an overall "T" shape. When the container needs to be fixed, the length direction of the top of the locking rod 122 is aligned with the length direction of the bottom hole 202. Since the width of the locking rod 122 is less than the width of the bottom hole 202, when the container is lowered, the top of the locking rod 122 can pass into the bottom hole 202. Then, the locking rod 122 is rotated 90 degrees, causing it to lock into the bottom hole 202, thus fixing the container. In the above description, a torsion bar 123 is used to control the rotation of the locking rod 122, and the torsion bar 123 is fixedly connected to the locking rod 122.

[0019] Figure 4The structure for moving the bottom support 100 is shown. As shown, side plates are provided on both sides of the bottom of the bottom support 100, and rollers 103 are rotatably arranged between the two side plates. The rollers 103 drive the bottom support 100 to move, allowing the bottom support 100 to enter or leave the vertical projection range of the hatch 201. Furthermore, after the corresponding container is stacked, to prevent the bottom support 100 from continuing to move via the rollers 103, the present invention also includes a limiting measure for the bottom support 100. Figure 3 As shown, firstly, a limiting hole is pre-set at the bottom of the cargo hold 200, the position of which corresponds to the position of the bottom support 100 when it is out of the vertical projection range of the hatch 201. Next, an insertion rod 102 is set at the top of the bottom support 100, penetrating vertically through the side support 110 and entering the limiting hole. Once the insertion rod 102 enters the limiting hole, the bottom support 100 cannot move. Furthermore, a threaded connection is preferably used between the insertion rod 102 and the bottom support 100. This threaded connection effectively prevents the insertion rod 102 from shifting upwards without human intervention, improving the limiting stability.

[0020] In practice, a pre-guided groove can be set at the bottom of the cargo hold 200. The width of the guide groove corresponds to the width of the roller 103. In this way, the guide groove can restrict the roller 103 to only move in a straight line, and prevent the bottom support 100 from displacing in other directions.

[0021] Figure 9 The specific structure of the locking mechanism 130 is shown. As shown, the locking mechanism 130 includes a base 131 detachably mounted on the side wall of the hatch 201 and an adjusting screw 132 threadedly connected to the base 131. One end of the adjusting screw 132 has a collar 133 rotatably fitted onto the outer ring of the side support member 110. The base 131 and the side wall of the hatch 201 are preferably connected by bolts. When it is necessary to fix the top of the side support member 110, the collar 133 is fitted onto the top of the side support member 110, then the adjusting screw 132 is rotated to adjust the overall length, and finally the base 131 is fixed to the side wall of the hatch 201.

[0022] The working principle of the support device will be explained in detail below: like Figure 2 As shown, first, the bottom support 100 and the side support 110 on one side are assembled. After assembly, the bottom support 100 is driven to move directly below the hatch 201 (see reference). Figure 2(The dotted line portion in the diagram) Then, the container is hoisted to the top of the bottom support 100. When the container on top of the bottom support 100 reaches the preset height, the bottom support 100 in the dotted line portion is driven to move to the left, eventually forming the state of the solid line portion, completing the stacking of the container on the left side, and the bottom support 100 is fixed by the insert rod 102. Then, the bottom support 100 and side support 110 on the other side are assembled. After assembly, the container on the right side is stacked in the same way. Finally, after both bottom support 100s are removed from directly below the hatch 201, the container is hoisted to the part between the two side support 110s. At this time, the left end of the container is pressed against the top of the left support 101, and the right end is pressed against the top of the right support 101. The bottom support 100s on both sides are connected by the container in the middle.

[0023] Assuming the container moves to the left, the displacement force of the container is applied to the bottom support 100 on the left. The bottom support 100 is then applied to the bottom support 100 on the right through the middle part of the container. The displacement of the two bottom support 100 is transmitted to the side support 110, and both side support 110 are fixed, thereby transmitting the displacement force to the cargo hold 200 structure.

[0024] Furthermore, because the cargo holds of some bulk carrier models are relatively narrow in the width direction (200 mm), it is difficult to accommodate containers on both sides. Figure 1 The stacking state is shown. Therefore, this solution provides another method for stacking containers. In this method, as... Figure 6 As shown, the length of the bottom support 100 corresponds to the width direction of the container. However, since the orientation of the container in the middle section is inconsistent with that of the containers on both sides, this method provides the following two embodiments: exist Figure 7 In the illustrated embodiment, a connecting frame 104 is provided between two adjacent support parts 101 to fix them together, and a fixing lock 120 is provided on the connecting frame 104 corresponding to the bottom hole 202 of the container. In this way, the containers on both sides press on the top of the bottom support 100, while the container in the middle presses on the top of the connecting frame 104. At this time, the container in the middle can still be connected to the bottom support parts 100 on both sides through the connecting frame 104.

[0025] exist Figure 8 In the illustrated embodiment, bottom supports 100 are provided at the bottom of the container in the middle section and at the bottom of the containers on both sides. In this embodiment, some of the bottom supports 100 are located below the middle of the containers on both sides, providing support for the container in the middle section.

[0026] In summary, this invention, by separately providing bottom support members 100 and side support members 110 on both sides of the hatch 201, creates multiple areas for container stacking at the top of the two bottom support members 100 and between the two bottom support members 100, thereby distributing the number of containers. Furthermore, the two side support members 110 are connected by a container in the middle section, utilizing the container in the middle section to transmit displacement force. This not only avoids the problem of high container stacking but also allows the two side support members 110 to jointly constrain the unidirectional displacement of the container.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A container support device for bulk carriers, characterized in that: Includes a bottom support (100) and a side support (110) for installation within the cargo hold (200), the bottom support (100) and the side support (110) being symmetrically arranged on both sides of the hatch (201), wherein: The top of the bottom support (100) is used for stacking containers, and the bottom support (100) is movably and horizontally set at the bottom of the cargo hold (200) to drive the top container out of the vertical projection range of the hatch (201); when both bottom supports (100) are out of the vertical projection range of the hatch (201), the adjacent ends of the two bottom supports (100) form a support part (101) for stacking containers, and the number of containers is distributed through the support parts (101) at the top and ends of the bottom supports (100); The bottom of the side support (110) is fixedly connected to the bottom support (100), and the top extends to the side wall of the hatch (201) and is connected to a locking mechanism (130). The locking mechanism (130) is used to fix the top of the side support (110) to the side wall of the hatch (201). The two bottom supports (100) are connected by a container, so that the two side supports (110) together constrain the unidirectional displacement of the container.

2. The container support device for bulk carriers according to claim 1, characterized in that: Both the bottom support (100) and the side support (110) are plate-shaped structures.

3. The container support device for bulk carriers according to claim 1, characterized in that: The bottom support (100) extends outward from one end near the side support (110) to form a support part (101). The top of the bottom support (100) and the top of the support (101) are both provided with a fixing lock (120) for connecting with the container.

4. The container support device for bulk carriers according to claim 3, characterized in that: The distance between the two support sections (101) located on both sides of the hatch (201) is less than the length or width of the container.

5. The container support device for bulk carriers according to claim 3, characterized in that: The fixed lock (120) includes a base (121) and a locking rod (122) rotatably connected to the base (121). The locking rod (122) has an overall "T" shape structure. By rotating the locking rod (122), the locking rod (122) is inserted into the bottom hole (202) of the container.

6. The container support device for bulk carriers according to claim 1, characterized in that: The bottom support member (100) is rotatably provided with a roller (103) for driving the bottom support member (100) to move and a limiting member for restricting the movement of the bottom support member (100).

7. The container support device for bulk carriers according to claim 6, characterized in that: The limiting component is a plug rod (102), which vertically penetrates the side support (110) and is inserted into the limiting hole reserved in the cargo hold (200).

8. The container support device for bulk carriers according to claim 1, characterized in that: The locking mechanism (130) includes a base (131) detachably mounted on the side wall of the hatch (201) and an adjusting screw (132) threadedly connected to the base (131), one end of which is rotatably connected to the side support (110).

9. The container support device for bulk carriers according to claim 1, characterized in that: A connecting frame (104) is provided between two adjacent support parts (101) to fix them together. A fixing lock (120) is provided on the part of the connecting frame (104) corresponding to the bottom hole (202) of the container, for stacking containers arranged in different directions.

10. The container support device for bulk carriers according to claim 1, characterized in that: Bottom supports (100) are provided at the bottom of the container in the middle section and at the bottom of the containers on both sides for stacking containers arranged in different directions.

Images