Closable fairlead for ship

Abstract

The utility model discloses a closable marine fairlead which comprises a bottom plate, a penetrating through hole is formed in the center of the bottom plate, the side wall of the bottom plate is fixedly connected with an annular limiting protrusion, the annular limiting protrusion is rotationally connected with a rotating ring, and the rotating ring coincides with the central axis of the penetrating through hole. The side wall, close to the penetrating through hole, of the rotating ring is fixedly connected with limiting protruding teeth, the limiting protruding teeth are rotationally connected with an opening and closing mechanism, and a limiting control mechanism is arranged on one side of the rotating ring. Seawater and sundries do not enter the ship through the fairlead any more, and when the ship stops or performs other operations, the fairlead is closed, so that personnel can be prevented from misoperation or accidentally touching equipment such as a mooring rope, and safety accidents are avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of marine cable guide holes, specifically relating to a closable marine cable guide hole. Background Technology

[0002] A guide hole is a perforated guide located on the bulwark to restrict the exit position of the cable. It is usually made of cast iron or cast steel, installed on the bulwark, guides the cable through the hull, and prevents the cable from damaging the hull. When the ship is at rest or berthed, the guide hole plays a role in fixing and stabilizing the ship's position.

[0003] Existing cable guide holes are usually open circular holes. This type of open cable guide hole makes it easy for seawater to backflow into the hull during the ship's navigation. This is not conducive to keeping the hull clean and dry, and thus affects the ship's navigation safety and the normal operation of equipment. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a closable marine cable guide hole.

[0005] The technical solution adopted to solve the above technical problems is as follows: a closable marine cable guide hole is provided, including a base plate, a through hole is provided at the center of the base plate, a circular limiting protrusion is fixedly connected to the side wall of the base plate, a rotating ring is rotatably connected to the circular limiting protrusion, the rotating ring coincides with the central axis of the through hole, a limiting tooth is fixedly connected to the side wall of the rotating ring near the through hole, an opening and closing mechanism is rotatably connected to the limiting tooth, and a limiting control mechanism is provided on one side of the rotating ring.

[0006] Through the above technical solution, the limit control mechanism drives the rotating ring to rotate, and the limit protrusion fixedly connected on the rotating ring drives the opening and closing mechanism to rotate, thereby enabling the opening and closing mechanism to close the through hole.

[0007] Furthermore, the opening and closing mechanism includes a first gear and a second gear. A first connecting rod is fixedly connected to the side wall of the first gear and is fixedly connected to the side wall of the base plate. A second connecting rod is fixedly connected to the side wall of the second gear and is fixedly connected to the side wall of the base plate. A first closing plate and a second closing plate are fixedly connected to the side walls of the first gear and the second gear, respectively.

[0008] With the above technical solution, when the rotating ring rotates, the limiting tooth drives the first gear and the second gear to rotate, and then the first closing plate and the second closing plate begin to rotate around the first connecting rod and the second connecting rod, thereby realizing the function of opening and closing.

[0009] Furthermore, the inner wall of the rotating ring is provided with an annular limiting groove, which corresponds to the annular limiting protrusion.

[0010] Through the above technical solution, the annular limiting groove plays a limiting control role on the rotation of the rotating ring, ensuring the stability of the rotation of the rotating ring.

[0011] Furthermore, the limiting control mechanism includes a first support plate, a transmission rod rotatably connected to the side of the first support plate near the through hole, a transmission gear fixedly connected to one end of the transmission rod, the transmission gear meshing with the limiting tooth, a rotating handle fixedly connected to the other end of the transmission rod, and a third connecting column fixedly connected to the side of the first support plate away from the through hole, the third connecting column being fixedly connected to the side wall of the base plate.

[0012] With the above technical solution, rotating the handle causes the transmission rod to start rotating, which in turn causes the transmission gear to start rotating. Through the meshing transmission relationship between the transmission gear and the limiting convex tooth, the rotating ring starts rotating, thereby opening and closing the first and second closing plates.

[0013] Furthermore, the limit control mechanism includes a threaded pressure rod, which is rotatably connected to a connecting block. The connecting block is fixedly connected to the side wall of the rotating ring. A rotating handle is fixedly connected to the end of the threaded pressure rod away from the base plate. A limit hole is provided on the side of the base plate near the rotating handle.

[0014] Through the above technical solution, the rotation of the rotating ring is controlled by rotating the handle, thereby realizing the opening and closing of the first and second closing plates. When the first and second closing plates are opened to a suitable angle, the rotating handle can be rotated, and the threaded pressure rod begins to move towards the limiting hole through threaded transmission. When one end of the threaded pressure rod is fully engaged in the limiting hole, the rotating ring is in a stationary state, and the first and second closing plates will also be in a stable state. Thus, the opening and closing angle of the first and second closing plates can be adjusted.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention achieves the closing function of the cable guide hole by setting an opening and closing mechanism, ensuring that seawater and debris will no longer enter the ship's interior through the cable guide hole during navigation. When the ship is docked or carrying out other operations, closing the cable guide hole can prevent personnel from misoperating or accidentally touching the cables and other equipment, thereby avoiding safety accidents. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the annular limiting protrusion structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the annular limiting groove structure of this utility model;

[0020] Figure 4 This is a second-view schematic diagram of the overall structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the first embodiment of the limit control mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the second embodiment of the limit control mechanism of this utility model.

[0023] Reference numerals: 1. Base plate; 2. Through hole; 3. Circular limiting protrusion; 4. Circular limiting groove; 5. Limiting tooth; 7. Opening and closing mechanism; 701. First gear; 702. Second gear; 703. First connecting rod; 704. Second connecting rod; 705. First closing plate; 706. Second closing plate; 9. Limiting control mechanism; 901. Rotating handle; 902. Threaded pressure rod; 903. Connecting block; 904. Limiting hole; 905. Transmission gear; 906. Third connecting column; 907. First support plate; 908. Rotating handle; 909. Transmission rod; 13. Rotating ring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a closable marine cable guide hole includes a base plate 1 with a through hole 2 at its center. A circular limiting protrusion 3 is fixedly connected to the side wall of the base plate 1, and a rotating ring 13 is rotatably connected to the circular limiting protrusion 3. The rotating ring 13 coincides with the central axis of the through hole 2. A limiting tooth 5 is fixedly connected to the side wall of the rotating ring 13 near the through hole 2. An opening and closing mechanism 7 is rotatably connected to the limiting tooth 5. A limiting control mechanism 9 is provided on one side of the rotating ring 13. The limiting control mechanism 9 drives the rotating ring 13 to rotate, and the limiting tooth 5 fixedly connected to the rotating ring 13 drives the opening and closing mechanism 7 to rotate, thereby enabling the opening and closing mechanism 7 to close the through hole 2.

[0026] The opening and closing mechanism 7 includes a first gear 701 and a second gear 702. A first connecting rod 703 is fixedly connected to the side wall of the first gear 701 and is fixedly connected to the side wall of the base plate 1. A second connecting rod 704 is fixedly connected to the side wall of the second gear 702 and is fixedly connected to the side wall of the base plate 1. A first closing plate 705 and a second closing plate 706 are fixedly connected to the side walls of the first gear 701 and the second gear 702, respectively. When the rotating ring 13 rotates, the limiting protrusion 5 drives the first gear 701 and the second gear 702 to rotate. Then, the first closing plate 705 and the second closing plate 706 begin to rotate around the first connecting rod 703 and the second connecting rod 704, thereby realizing the opening and closing function. A circular limiting groove 4 is provided on the inner side wall of the rotating ring 13. The circular limiting groove 4 corresponds to the circular limiting protrusion 3. The circular limiting groove 4 plays a limiting role in the rotation of the rotating ring 13, ensuring the stability of the rotation of the rotating ring 13.

[0027] like Figure 5 and Figure 6 As shown, in the first embodiment, the limiting control mechanism 9 includes a first support plate 907. A transmission rod 909 is rotatably connected to the side of the first support plate 907 near the through hole 2. A transmission gear 905 is fixedly connected to one end of the transmission rod 909, and the transmission gear 905 meshes with the limiting tooth 5. A rotating handle 908 is fixedly connected to the other end of the transmission rod 909. A third connecting post 906 is fixedly connected to the side of the first support plate 907 away from the through hole 2. The third connecting post 906 is fixedly connected to the side wall of the base plate 1. When the rotating handle 908 is rotated, the transmission rod 909 starts to rotate, and then the transmission gear 905 also starts to rotate. Through the meshing transmission relationship between the transmission gear 905 and the limiting tooth 5, the rotating ring 13 starts to rotate, and then the first closing plate 705 and the second closing plate 706 open and close.

[0028] In the second embodiment, the limit control mechanism 9 includes a threaded pressure rod 902, which is rotatably connected to a connecting block 903. The connecting block 903 is fixedly connected to the side wall of the rotating ring 13. A rotating handle 901 is fixedly connected to the end of the threaded pressure rod 902 away from the base plate 1. A limit hole 904 is provided on the side of the base plate 1 near the rotating handle 901. The rotation of the rotating ring 13 is controlled by rotating the handle 901, thereby realizing the opening and closing of the first closing plate 705 and the second closing plate 706. When the first closing plate 705 and the second closing plate 706 are opened to a suitable angle, the rotating handle 901 can be rotated. Through threaded transmission, the threaded pressure rod 902 begins to move towards the limit hole 904. When one end of the threaded pressure rod 902 is fully engaged in the limit hole 904, the rotating ring 13 is in a stationary state, and the first closing plate 705 and the second closing plate 706 will also be in a stable state. Thus, the opening and closing angle of the first closing plate 705 and the second closing plate 706 can be adjusted.

[0029] In use, rotating the handle 908 causes the transmission rod 909 to rotate, which in turn causes the transmission gear 905 to rotate. Through the meshing transmission relationship between the transmission gear 905 and the limiting tooth 5, the rotating ring 13 starts to rotate, thereby opening and closing the first closing plate 705 and the second closing plate 706. The rotation of the rotating ring 13 can also be controlled by rotating the handle 901. When the first closing plate 705 and the second closing plate 706 are opened to a suitable angle, rotating the handle 901 causes the threaded pressure rod 902 to move towards the limiting hole 904 through threaded transmission until one end of the threaded pressure rod 902 is fully engaged in the limiting hole 904.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A closable marine cable guide hole, comprising a base plate (1), characterized in that: The base plate (1) has a through hole (2) at its center. A circular limiting protrusion (3) is fixedly connected to the side wall of the base plate (1). A rotating ring (13) is rotatably connected to the circular limiting protrusion (3). The rotating ring (13) coincides with the central axis of the through hole (2). A limiting tooth (5) is fixedly connected to the side wall of the rotating ring (13) near the through hole (2). An opening and closing mechanism (7) is rotatably connected to the limiting tooth (5). A limiting control mechanism (9) is provided on one side of the rotating ring (13).

2. A closable marine cable guide hole according to claim 1, characterized in that, The opening and closing mechanism (7) includes a first gear (701) and a second gear (702). A first connecting rod (703) is fixedly connected to the side wall of the first gear (701) and the first connecting rod (703) is fixedly connected to the side wall of the base plate (1). A second connecting rod (704) is fixedly connected to the side wall of the second gear (702) and the second connecting rod (704) is fixedly connected to the side wall of the base plate (1). A first closing plate (705) and a second closing plate (706) are fixedly connected to the side walls of the first gear (701) and the second gear (702), respectively.

3. A closable marine cable guide hole according to claim 1, characterized in that, The inner wall of the rotating ring (13) is provided with an annular limiting groove (4), which corresponds to the annular limiting protrusion (3).

4. A closable marine cable guide hole according to claim 1, characterized in that, The limiting control mechanism (9) includes a first support plate (907), a transmission rod (909) is rotatably connected to the side of the first support plate (907) near the through hole (2), a transmission gear (905) is fixedly connected to one end of the transmission rod (909), the transmission gear (905) meshes with the limiting tooth (5), a rotating handle (908) is fixedly connected to the other end of the transmission rod (909), a third connecting column (906) is fixedly connected to the side of the first support plate (907) away from the through hole (2), and the third connecting column (906) is fixedly connected to the side wall of the base plate (1).

5. A closable marine cable guide hole according to claim 1, characterized in that, The limit control mechanism (9) includes a threaded pressure rod (902), which is rotatably connected to a connecting block (903). The connecting block (903) is fixedly connected to the side wall of the rotating ring (13). A rotating handle (901) is fixedly connected to one end of the threaded pressure rod (902) away from the base plate (1). A limit hole (904) is provided on the side of the base plate (1) near the rotating handle (901).

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