Flat attaching type sacrificial anode applied to ship body

Abstract

The utility model discloses a flat attaching type sacrificial anode applied to a ship body, which comprises a ship body shell, a mounting groove for mounting a sacrificial anode body is arranged on the ship body shell, a base plate is arranged at the bottom of the mounting groove, a screw sleeve is embedded on the base plate, and a mounting hole corresponding to the screw sleeve is arranged on the sacrificial anode body. A bolt matched with the screw sleeve is arranged in the mounting hole in a penetrating manner, and a nut for fixing the sacrificial anode body is sleeved on the bolt; a rubber sealing plug used for improving the sealing performance of the sacrificial anode body is arranged in the mounting groove, and the outer edge of the rubber sealing plug is flush with a hull shell. The sacrificial anode body is embedded in the shell of the ship body, the rubber sealing plug is mounted on the outer side of the sacrificial anode body, and the edge of the rubber sealing plug is flush with the edge of the shell of the ship body, so that the resistance of the sacrificial anode to the ship body is reduced, and the sacrificial anode is convenient to replace by adopting a bolt and nut fixing mode; further, the anti-corrosion performance of the ship body is regulated.

Description

Technical Field

[0001] The utility model relates to the technical field of ship anti-corrosion, and more specifically to a flat-mounted sacrificial anode applied to a ship hull. Background Technique

[0002] Sacrificial anode is a method to prevent metal corrosion. It utilizes the principle of a primary battery to protect the cathode metal by sacrificing the anode metal. The sacrificial anode is made of a metal material with a more negative potential. When it is connected to the metal to be protected (cathode), it dissociates preferentially by itself, thereby inhibiting the corrosion of the protected metal. This protection method gets its name from the continuous consumption of the anode metal during the protection process.

[0003] In order to prevent ships from being corroded by seawater, sacrificial anodes are installed on the outer surface of the ship hull. However, traditional sacrificial anodes are installed on the ship surface, which will increase the resistance during ship navigation, resulting in an increase in ship operation energy consumption and affecting the ship speed and endurance.

[0004] In order to reduce the resistance brought by the sacrificial anode to the ship, the thickness of the sacrificial anode is reduced as much as possible. Therefore, a flat-mounted sacrificial anode is adopted, and the sacrificial anode with a flat plate structure is flat-mounted on the surface of the ship bottom shell. However, when installing the flat-mounted sacrificial anode, it needs to be welded on the outer surface of the ship hull. Since the sacrificial anode often needs to be replaced to maintain the anti-corrosion performance of the ship, multiple weldings on the ship surface are likely to cause gaps between the sacrificial anode and the ship surface, and the sacrificial anode is prone to fall off under the impact of seawater for a long time, affecting the anti-corrosion effect of the ship hull.

[0005] In order to ensure the fitting between the existing flat-mounted sacrificial anode and the ship surface, the sacrificial anode is installed on the ship by means of bolt fixation. However, the bolts are exposed outside and are prone to rust after being soaked in seawater for a long time, which is not convenient for replacing the sacrificial anode. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is to provide a flat-mounted sacrificial anode applied to a ship hull, which reduces the resistance brought by the sacrificial anode to the ship, and is also convenient for replacing the sacrificial anode to ensure the anti-corrosion performance of the ship hull.

[0007] To solve the above technical problems, the technical solutions adopted by the utility model are as follows.

[0008] A flush-mounted sacrificial anode applied to a hull, comprising a hull outer shell, an installation groove for installing a sacrificial anode body is opened on the hull outer shell, a backing plate is arranged at the bottom of the installation groove, a screw sleeve is embedded on the backing plate, an installation hole corresponding to the screw sleeve is opened on the sacrificial anode body, a bolt matched with the screw sleeve is penetrated in the installation hole, and a nut for fixing the sacrificial anode body is sleeved on the bolt; a rubber sealing plug for improving the sealing performance of the sacrificial anode body is arranged in the installation groove, and the outer edge of the rubber sealing plug is flush with the hull outer shell.

[0009] Further optimizing the technical solution, a stepped insulating block is arranged in the backing plate, and the screw sleeve is embedded in the center of the insulating block.

[0010] Further optimizing the technical solution, an insulating gasket for improving the insulating performance is arranged between the sacrificial anode body and the backing plate.

[0011] Further optimizing the technical solution, a positioning ring for preventing the rubber sealing plug from falling off is arranged at the top of the installation groove, and a groove matching with the positioning ring is opened on the outer edge of the rubber sealing plug at the position corresponding to the positioning ring.

[0012] Due to the adoption of the above technical solutions, the following technical progress is achieved by the present utility model.

[0013] A flush-mounted sacrificial anode applied to a hull provided by the present utility model embeds the sacrificial anode body in the outer shell of the hull, and installs a rubber sealing plug on the outside of the sacrificial anode body, so that the edge of the rubber sealing plug is flush with the edge of the hull outer shell, to reduce the resistance brought by the sacrificial anode to the hull. The fixing method of bolts and nuts is adopted, which is convenient for replacing the sacrificial anode, and further adjusts the anti-corrosion performance of the hull. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the present utility model.

[0015] Wherein: 1. Hull outer shell, 2. Installation groove, 3. Backing plate, 4. Sacrificial anode body, 5. Insulating block, 6. Screw sleeve, 7. Bolt, 8. Nut, 9. Insulating gasket, 10. Rubber sealing plug, 11. Positioning ring. Detailed Embodiment

[0016] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] A flush-mounted sacrificial anode applied to a hull, in combination with Figure 1As shown in the figure, it includes a hull shell 1. An installation groove 2 is provided on the hull shell 1. A sacrificial anode body 4 is installed in the installation groove 2. A backing plate 3 is arranged at the bottom of the installation groove 2. A stud bush 6 is embedded in the backing plate 3. An installation hole is provided on the sacrificial anode body 4. The installation hole corresponds to the stud bush 6. A bolt 7 is inserted through the installation hole. The bolt 7 is fitted with the stud bush 6. A nut 8 is sleeved on the bolt 7 to fix the sacrificial anode body 4.

[0018] An insulating block 5 is arranged in the backing plate 3. The stud bush 6 is embedded in the center of the insulating block 5 to improve the insulation performance of the bolt connection between the sacrificial anode body and the backing plate.

[0019] An insulating gasket 9 is arranged between the sacrificial anode body 4 and the backing plate 3 to improve the insulation performance between the sacrificial anode body and the backing plate.

[0020] A rubber sealing plug 10 is arranged in the installation groove 2 to improve the sealing performance of the sacrificial anode body 4, prevent seawater from contacting the bolt and the nut, and cause rust and corrosion of the bolt and the nut. The outer edge of the rubber sealing plug 10 is flush with the hull shell 1 and will not bring resistance to the hull during driving.

[0021] A positioning ring 11 is arranged at the top of the installation groove 2. A groove is provided at the position of the outer edge of the rubber sealing plug 10 corresponding to the positioning ring 11. The groove is fitted with the positioning ring to prevent the rubber sealing plug from falling off due to the impact of seawater pressure during the driving of the hull.

[0022] When installing the sacrificial anode body of the present utility model, place the sacrificial anode body in the installation groove. The installation hole on the sacrificial anode body corresponds to the stud bush on the gasket. Screw the bolt inward to the end to connect the sacrificial anode body and the backing plate. Screw the nut onto the bolt to firmly fix the sacrificial anode body in the installation groove. After the installation of the sacrificial anode body is completed, insert the rubber sealing plug into the installation groove and match the groove on the rubber sealing plug with the positioning groove to complete the installation of the sacrificial anode body.

[0023] When disassembling the sacrificial anode body, since the rubber sealing plug is a soft plug, push the rubber sealing plug inward along the edge of the positioning ring with force. A gap appears between the rubber sealing plug and the installation groove. At this time, insert a small stick to pry out the rubber sealing plug. At this time, the bolt and the nut can be unscrewed to replace the sacrificial anode body.

Claims

1. A flat-mounted sacrificial anode applied to a ship hull, characterized in that: The invention comprises a hull shell (1), wherein a mounting groove (2) for mounting a sacrificial anode body (4) is provided on the hull shell (1), a pad (3) is provided at the bottom of the mounting groove (2), a screw sleeve (6) is embedded on the pad (3), a mounting hole corresponding to the screw sleeve (6) is provided on the sacrificial anode body (4), a bolt (7) matched with the screw sleeve (6) is passed through the mounting hole, and a nut (8) for fixing the sacrificial anode body (4) is sleeved on the bolt (7); a rubber sealing plug (10) for improving the sealing performance of the sacrificial anode body (4) is provided in the mounting groove (2), and the outer edge of the rubber sealing plug (10) is flush with the hull shell (1).

2. A flat-mounted sacrificial anode for a ship hull according to claim 1, characterized in that: A stepped insulating block (5) is arranged inside the backing plate (3), and a screw sleeve (6) is embedded in the center of the insulating block (5).

3. A flat-mounted sacrificial anode applied to a ship hull according to claim 1, characterized in that: An insulating gasket (9) for improving insulation performance is provided between the sacrificial anode body (4) and the backing plate (3).

4. A flat-mounted sacrificial anode applied to a ship hull according to claim 1, characterized in that: A circle of positioning ring (11) is arranged at the top of the installation groove (2) to prevent the rubber sealing plug from falling off, and a circle of groove matching the positioning ring (11) is arranged at the outer edge of the rubber sealing plug (10) at a position corresponding to the positioning ring (11).

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