Adjustable bulk carrier electric hatch cover

Abstract

The utility model relates to an adjustable bulk cargo ship electric hatch cover in the field of bulk cargo ships, which comprises two cover bodies rotationally connected through a hinge structure, a driving shaft is fixed at the end part of one cover body, and the end part of the other cover body is rotationally connected with a rail wheel which is connected in a bulk cargo ship hatch rail in a rolling manner; mounting grooves are formed in the bottoms of the two cover bodies, sealing air bags are detachably fixed in the mounting grooves of the two cover bodies, an air inlet pipe is fixed and communicated with the upper end of one sealing air bag, the air inlet pipe fixedly penetrates through the cover bodies, and the air inlet pipe is fixed and communicated with the output end of an external air pump through a pipeline; the two sealing air bags are both in a U shape, by the adoption of the structure, the purpose of controlling the sealing effect is achieved, and finally the flexible adjusting function of achieving different sealing effects according to different goods is achieved; meanwhile, friction between the sealing air bag and the hatch of the bulk cargo ship can be weakened or even avoided, so that the service life of the sealing air bag is prolonged, and the maintenance cost is reduced.

Description

An adjustable electric hatch cover for bulk carriers Technical Field

[0001] This utility model relates to an adjustable electric hatch cover for bulk carriers, and more particularly to an adjustable electric hatch cover for bulk carriers applied in the field of bulk carriers. Background Technology

[0002] Hatch covers on cargo ships are used to cover and seal cargo holds. There are various types of hatch covers, one of which is the folding hatch cover. It is generally composed of two cover plates and is called a single-leaf folding type.

[0003] A search revealed a novel hatch cover for large bulk carriers disclosed in patent publication number CN202624578U. The cover comprises a main body, connecting rods, sealing strips, and connecting rings. A pair of connecting rods and connecting rings are located on each side of the main body. Sealing strips are installed around the perimeter and bottom edge of the main body. The main body has a box-shaped structure. Both the connecting rods and connecting rings are made of stainless steel. Due to the sealing strips installed around the perimeter, it offers good waterproofing. Furthermore, the box-shaped structure of the main body minimizes dimensional deformation and ensures reliable strength, further guaranteeing excellent sealing and meeting the transportation requirements of a wider range of goods.

[0004] Based on the above search and combined with the existing technology, it was found that although the hatch covers similar to those disclosed above can achieve a good sealing effect, their sealing strips will be damaged due to friction with the hatch during repeated opening and closing, resulting in a decrease in sealing performance. In addition, different goods have different sealing requirements during transportation, and the existing hatch covers cannot adjust the sealing performance. Therefore, an adjustable electric hatch cover for bulk carriers is proposed to improve the above problems. Summary of the Invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is how to design an electric hatch cover for bulk carriers with a long service life and easy adjustment of the sealing effect.

[0006] To solve the above problems, this utility model provides an adjustable electric hatch cover for bulk carriers, including two cover bodies rotatably connected by a hinge structure, one cover body having a drive shaft fixed at its end, and the other cover body having a track wheel rotatably connected to a track wheel that is rolled in the bulk carrier hatch track.

[0007] Both covers have mounting grooves at their bottoms. Each of the two mounting grooves can be detachably connected to a sealing airbag. One of the sealing airbags has an air inlet pipe fixed to its upper end and connected to it. The air inlet pipe is fixed through the cover and is connected to the output end of an external air pump via a pipe.

[0008] Both airbags are U-shaped, and after inflation, the outer sides of both airbags are interference-fitted with the inner wall of the bulk carrier's hatch. The two airbags are symmetrically arranged and together form an O-ring.

[0009] In the aforementioned adjustable electric hatch cover for bulk carriers, the existing solid sealing ring structure is improved into an expandable and contractible sealing airbag, and the two sealing airbags together form an O-ring sealing structure. This allows the shape of the sealing airbag to be changed by the input of gas, thereby achieving the purpose of sealing. At the same time, the expansion size of the sealing airbag can be adjusted by controlling the amount of gas input, resulting in different sealing effects between the sealing airbag and the bulk carrier hatch, thus achieving the purpose of controlling the sealing effect. Ultimately, this achieves a flexible adjustment function that provides different sealing effects for different cargoes.

[0010] Meanwhile, the airbag shrinks and retracts into the mounting groove of the cover during the opening and closing process, which can reduce or even avoid friction between the airbag and the hatch of the bulk carrier, thereby extending the service life of the airbag and reducing maintenance costs.

[0011] As a further improvement of this application, the two sealed airbags are connected at their close ends via a connector;

[0012] When the two covers are closed, the end connectors of the two air-sealing bladders separate and the connector ports are connected to the outside. When the two covers are opened, the end connectors of the two air-sealing bladders abut and close, so that the two air-sealing bladders are connected.

[0013] As a further improvement of this application, the connector includes a connecting nozzle, which is fixed and communicates with the end of the sealing airbag. A sealing disc is fixedly sleeved on the outside of the connecting nozzle, and a sealing ring is fixedly embedded on one side of the sealing disc.

[0014] When the two covers are unfolded, the two sealing discs at the ends of the two sealing airbags press against each other, and the two sealing rings at the ends of the two sealing airbags are respectively interference-fitted with the other sealing disc.

[0015] As a further improvement of this application, an installation plate is fixed to the upper end of the sealing airbag. The installation plate is movably engaged in the installation groove of the cover. A connecting stud is fixed to the upper end of the installation plate. The upper end of the connecting stud movably passes through the top of the cover and extends to the top of the cover. A sealing nut is screwed onto the connecting stud. The bottom surface of the sealing nut abuts against the surface of the cover.

[0016] As another improvement of this application, the upper end of the sealing airbag is also fixed and connected to an exhaust pipe, which moves through the top of the cover and extends to the top of the cover. A solenoid valve for controlling the opening and closing of the exhaust pipe is fixed on the exhaust pipe.

[0017] As a further improvement to this application, the two sealed airbags are fixedly connected to each other by a connecting hose at one end.

[0018] In summary, by improving the existing solid sealing ring structure into an expandable and contractible sealing airbag, and making the two sealing airbags together form an O-ring sealing structure, the shape of the sealing airbag can be changed by the input of gas to achieve the purpose of sealing. At the same time, the expansion size of the sealing airbag can be made different by controlling the amount of gas input, so that the sealing airbag and the hatch of the bulk carrier have different sealing effects, thereby achieving the purpose of controlling the sealing effect. Ultimately, it can achieve a flexible adjustment function that provides different sealing effects for different cargoes.

[0019] Meanwhile, the airbag shrinks and retracts into the mounting groove of the cover during the opening and closing process, which can reduce or even avoid friction between the airbag and the hatch of the bulk carrier, thereby extending the service life of the airbag and reducing maintenance costs. Attached Figure Description

[0020] Figure 1 is a three-dimensional structural diagram of the first embodiment of this application;

[0021] Figure 2 is a cross-sectional view of the first embodiment of this application;

[0022] Figure 3 is a schematic diagram of the sealing airbag and mounting plate structure of the first embodiment of this application;

[0023] Figure 4 is an enlarged view of the structure at point A in Figure 3;

[0024] Figure 5 is a schematic diagram of the sealing airbag and mounting plate structure of the second embodiment of this application.

[0025] Explanation of the labels in the diagram:

[0026] 1. Cover, 2. Drive shaft, 3. Track wheel, 4. Hinge structure, 5. Sealing airbag, 6. Intake pipe, 7. Mounting plate, 8. Connecting stud, 81. Sealing nut, 9. Connecting nozzle, 91. Sealing disc, 92. Sealing ring, 10. Exhaust pipe, 11. Connecting hose. Detailed Implementation

[0027] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0028] Implementation method 1:

[0029] Figures 1-4 show an adjustable electric hatch cover for a bulk carrier, comprising two cover bodies 1 rotatably connected by a hinge structure 4, wherein a drive shaft 2 is fixed to one end of one cover body 1, and a track wheel 3 that is rotatably connected to the other end of the cover body 1 and is rolled in the bulk carrier hatch track.

[0030] Both covers 1 have mounting grooves at their bottoms. Both covers 1 can be detachably connected to a sealing airbag 5. One of the sealing airbags 5 has an air inlet pipe 6 fixed and connected to its upper end. The air inlet pipe 6 is fixed through the cover 1 and is fixed and connected to the output end of an external air pump through a pipe.

[0031] Both sealing airbags 5 are U-shaped, and after expansion, the outer sides of both sealing airbags 5 are interference-fitted with the inner wall of the bulk carrier hatch. The two sealing airbags 5 are symmetrically arranged and together form an O-ring.

[0032] In the aforementioned adjustable electric hatch cover for bulk carriers, the existing solid sealing ring structure is improved into an expandable and contractible sealing airbag 5, and the two sealing airbags 5 together form an O-ring sealing ring structure. This allows the shape of the sealing airbag 5 to be changed by the input of gas, thereby achieving the purpose of sealing. At the same time, the expansion size of the sealing airbag 5 can be made different by controlling the amount of gas input, thereby making the sealing airbag 5 and the bulk carrier hatch have different sealing effects, thus achieving the purpose of controlling the sealing effect. Ultimately, this achieves a flexible adjustment function that provides different sealing effects for different cargoes.

[0033] Meanwhile, during the opening and closing process, the sealing airbag 5 shrinks and retracts into the mounting groove of the cover 1, which can weaken or even avoid friction between the sealing airbag 5 and the hatch of the bulk carrier, thereby extending the service life of the sealing airbag 5 and reducing maintenance costs.

[0034] Furthermore, the two sealed airbags 5 are connected at their closest points via a connector;

[0035] When the two covers 1 are retracted, the end connectors of the two sealing airbags 5 are separated and the connector ports are connected to the outside. When the two covers 1 are unfolded, the end connectors of the two sealing airbags 5 abut and close, so that the two sealing airbags 5 are connected.

[0036] Specifically:

[0037] The connector includes a connecting nozzle 9, which is fixed and communicates with the end of the sealing airbag 5. A sealing disc 91 is fixedly sleeved on the outside of the connecting nozzle 9, and a sealing ring 92 is fixedly embedded on one side of the sealing disc 91.

[0038] With the connection nozzle 9, when the two covers 1 are opened, the two sealing discs 91 at the ends of the two sealing airbags 5 press against each other, and the two sealing rings 92 at the ends of the two sealing airbags 5 are respectively press-fitted with the other sealing disc 91, so that the two sealing airbags 5 are connected to each other, and gas can be introduced into the two sealing airbags 5 through the air inlet pipe 6 to control the expansion of the sealing airbags 5 to form a seal.

[0039] When the two covers 1 are retracted, the two connecting nozzles 9 separate with the movement of the sealing airbag 5. The separated connecting nozzles 9 are connected to the outside, thereby allowing the air inside the sealing airbag 5 to be automatically discharged, achieving the purpose of automatically controlling the opening and closing of the sealing airbag 5.

[0040] Furthermore, an installation plate 7 is fixed to the upper end of the sealing airbag 5. The installation plate 7 is movably engaged in the installation groove of the cover 1. A connecting stud 8 is fixed to the upper end of the installation plate 7. The upper end of the connecting stud 8 movably passes through the top of the cover 1 and extends to the top of the cover 1. A sealing nut 81 is screwed onto the connecting stud 8. The bottom surface of the sealing nut 81 abuts against the surface of the cover 1.

[0041] With the installation plate 7 and connecting studs 8, workers can disassemble the sealing airbag 5 by unscrewing the sealing nut 81 or install the sealing airbag 5 by tightening the sealing nut 81, which facilitates the installation, removal, and maintenance of the sealing airbag 5 and makes it more convenient to use.

[0042] The second implementation method:

[0043] Figure 5 shows that the upper end of the sealing airbag 5 is also fixed and connected to an exhaust pipe 10. The exhaust pipe 10 moves through the top of the cover 1 and extends to the top of the cover 1. A solenoid valve for controlling the opening and closing of the exhaust pipe 10 is fixed on the exhaust pipe 10. The solenoid valve model can be VT315-024G or TM51-15HPX, etc.

[0044] At this time, the two sealed airbags 5 are fixedly connected to the connecting hose 11 at their close ends;

[0045] By controlling the solenoid valve, the exhaust pipe 10 can be opened before the cover 1 is opened and closed. This allows the air inside the sealing airbag 5 (under the elasticity of the sealing airbag 5 itself) to be automatically discharged. As a result, the sealing airbag 5 is completely separated from the inner wall of the bulk carrier hatch when it is opened and closed, which completely avoids the wear and tear of the sealing airbag 5 when it is opened and closed, and is more conducive to extending the service life of the sealing airbag 5.

[0046] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. An adjustable electric hatch cover for a bulk carrier, comprising two cover bodies (1) rotatably connected by a hinge structure (4), wherein a drive shaft (2) is fixed to the end of one of the cover bodies (1), and a track wheel (3) rotatably connected to the end of the other cover body (1) and rolled within a track in the bulk carrier hatch, characterized in that: Both of the two covers (1) have mounting grooves at their bottoms. Both of the two covers (1) can be detachably connected to a sealing airbag (5). One of the sealing airbags (5) has an air inlet pipe (6) fixed at its upper end and connected to the air inlet pipe (6). The air inlet pipe (6) is fixed through the cover (1) and is fixed and connected to the output end of an external air pump through a pipe. Both of the sealing airbags (5) are U-shaped, and after the two sealing airbags (5) are inflated, their outer sides are press-fitted with the inner wall of the bulk carrier hatch. The two sealing airbags (5) are symmetrically arranged and together form an O-ring.

2. An adjustable electric hatch cover for bulk carriers according to claim 1, characterized in that: The two sealing airbags (5) are connected at their close ends by a connector; wherein, when the two covers (1) are closed, the end connectors of the two sealing airbags (5) are separated and the connector ports are connected to the outside; when the two covers (1) are opened, the end connectors of the two sealing airbags (5) abut and close, so that the two sealing airbags (5) are connected.

3. An adjustable electric hatch cover for bulk carriers according to claim 2, characterized in that: The connector includes a connector (9), which is fixed and connected to the end of the sealing airbag (5). A sealing disc (91) is fixedly sleeved on the outside of the connector (9), and a sealing ring (92) is fixedly embedded on one side of the sealing disc (91). When the two covers (1) are unfolded, the two sealing discs (91) at the ends of the two sealing airbags (5) abut against each other, and the two sealing rings (92) at the ends of the two sealing airbags (5) are respectively interference-fitted with the other sealing disc (91).

4. An adjustable electric hatch cover for bulk carriers according to claim 1, characterized in that: The upper end of the sealing airbag (5) is fixed with an installation plate (7), which is movably engaged in the installation groove of the cover (1). The upper end of the installation plate (7) is fixed with a connecting stud (8), which is movably inserted through the top of the cover (1) and extends to the top of the cover (1). A sealing nut (81) is screwed onto the connecting stud (8), and the bottom surface of the sealing nut (81) abuts against the surface of the cover (1).

5. An adjustable electric hatch cover for bulk carriers according to claim 1, characterized in that: The upper end of the sealing airbag (5) is also fixed and connected to an exhaust pipe (10). The exhaust pipe (10) moves through the top of the cover (1) and extends to the top of the cover (1). An electromagnetic valve for controlling the opening and closing of the exhaust pipe (10) is fixed on the exhaust pipe (10).

6. An adjustable electric hatch cover for a bulk carrier according to claim 5, characterized in that: The two sealing airbags (5) are fixedly connected to each other by a connecting hose (11) at one end close to each other.

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