Sacrificial anode mounting structure for ship

By designing a marine sacrificial anode mounting structure, which allows for detachable installation within the through-holes of the hull's bilge outer plate, the problems of increased resistance and difficulty in replacement found in existing technologies are solved, achieving the effects of reduced resistance and easier replacement.

CN223620483UActive Publication Date: 2025-12-02WUXI DONGFANG HIGH PERFORMANCE SHIP ENG
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Patent Information

Application Number
CN202423031034.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-12-02
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

In the prior art, the installation of marine sacrificial anodes on the outer bilge plating increases hull drag and makes replacement difficult.

Method used

A marine sacrificial anode mounting structure was designed, including a cavity, a pad, and a sacrificial anode. The sacrificial anode is detachably installed in the cavity structure inside the through hole of the outer plate of the hull bilge, allowing it to sink to a level no higher than the surface of the outer plate, and then fixed with fasteners, ensuring a neat appearance and easy replacement.

Benefits of technology

This reduces additional drag on the bilge outer plate surface, ensuring a clean hull appearance, and also facilitates the replacement of sacrificial anodes, saving replacement costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223620483U_ABST
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Abstract

The utility model relates to a marine sacrificial anode mounting structure which is used for a ship body, the ship body comprises a bilge outer plate, and a through hole is formed in the bilge outer plate; the sacrificial anode mounting structure comprises a concave cavity which is of a hollow structure with an opening in the upper end and is arranged in the through hole; the two cushion blocks are arranged at the bottom of the inner side of the concave cavity; the sacrificial anode is detachably mounted on the cushion block, and the upper end of the sacrificial anode is not higher than the upper end of the bilge outer plate. The sacrificial anode is detachably mounted in the cavity structure in the through hole of the bilge outer plate of the hull, so that the sacrificial anode sinks until the upper surface of the sacrificial anode is not higher than the upper surface of the bilge outer plate, additional resistance on the surface of the bilge outer plate is reduced, neat appearance of the hull is guaranteed, later replacement of the sacrificial anode is facilitated, and replacement cost is saved.
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Description

Technical Field

[0001] This utility model relates to the field of sacrificial anode technology, and in particular to a marine sacrificial anode installation structure. Background Technology

[0002] When sacrificial anodes need to be installed on the bilge plating below the waterline, the core plate of the sacrificial anode is usually welded to the bilge plating, or the sacrificial anode is welded into a through-hole in the bilge plating. When the bilge plating is curved, the sacrificial anode welded to the bilge plating will protrude from the hull line, increasing hull drag and collision risk. If it is welded into a through-hole in the bilge plating, subsequent replacement becomes difficult.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model discloses a marine sacrificial anode mounting structure to solve the problems of increased hull resistance and difficulty in replacement when sacrificial anodes are mounted on the outer bilge plate.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A sacrificial anode mounting structure for a ship hull, the hull including a bilge outer plate with a through hole; the sacrificial anode mounting structure including: a cavity, a hollow structure with an open top, disposed within the through hole; two pads disposed at the bottom of the inner side of the cavity; and a sacrificial anode, detachably mounted on the pads, the upper end of the sacrificial anode not higher than the upper end of the bilge outer plate.

[0007] A further technical solution is that the sacrificial anode mounting structure includes a fixing member, and a portion of the lower end of the fixing member passes through the sacrificial anode and is threadedly connected to the pad block.

[0008] A further technical solution is that a screw hole is opened at the upper end of the pad, and the fastener includes a screw, a washer and a spring washer. The screw passes through the spring washer, the washer and the sacrificial anode in sequence and is threadedly connected to the screw hole.

[0009] A further technical solution is that a countersunk hole is opened at the upper end of the sacrificial anode, and the gasket, spring washer and screw are arranged in the countersunk hole from bottom to top, with the upper end of the screw not higher than the upper end of the sacrificial anode.

[0010] A further technical solution is that the cavity includes: a cylindrical body, the upper outer end of which is connected to the through hole; and a bottom plate, which is disposed at the lower end of the cylindrical body.

[0011] A further technical solution is that the lower end of the pad is welded to the upper end of the base plate.

[0012] A further technical solution is that the upper outer end of the cylinder is continuously welded to the outer plate of the bilge on both sides.

[0013] A further technical solution is that the inner side of the cylinder and the outer side of the sacrificial anode are fitted with an equidistant gap.

[0014] The beneficial effects of this utility model embodiment are as follows:

[0015] (i) Marine sacrificial anode mounting structure, including a recess, a pad, and a sacrificial anode. By detachably installing the sacrificial anode in the recess structure within the through-hole of the bilge outer plate, the sacrificial anode is lowered to a position where its upper surface is no higher than the upper surface of the bilge outer plate. This reduces the additional resistance on the bilge outer plate surface, ensures a clean hull appearance, and facilitates the replacement of the sacrificial anode later, saving replacement costs.

[0016] (ii) Furthermore, a countersunk hole is opened at the upper end of the sacrificial anode, and the gasket, spring washer and screw are arranged in the countersunk hole from bottom to top. The upper end of the screw is not higher than the upper end of the sacrificial anode to ensure the hull appearance is neat. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the marine sacrificial anode mounting structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of the marine sacrificial anode mounting structure of this utility model.

[0019] In the picture:

[0020] 1. Bike outer plate; 11. Through hole; 2. Cavity; 21. Cylinder; 22. Base plate; 3. Pad; 31. Screw hole; 4. Sacrificial anode; 41. Countersunk hole; 5. Fastener; 51. Screw; 52. Spring washer; 53. Washer. Detailed Implementation

[0021] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0023] Example:

[0024] This embodiment discloses a marine sacrificial anode mounting structure.

[0025] The sacrificial anode mounting structure is used for the hull, which includes a bilge outer plate 1 with through holes 11.

[0026] The sacrificial anode mounting structure includes a cavity 2, a pad 3, and a sacrificial anode 4.

[0027] The cavity 2 is a hollow structure with an open top, disposed within the through hole 11. Exemplarily, the cavity 2 includes a cylindrical body 21 and a bottom plate 22. The upper outer end of the cylindrical body 21 is connected to the through hole 11, and the bottom plate 22 is disposed at the lower end of the cylindrical body 21. Specifically, the upper outer end of the cylindrical body 21 is slightly higher than the outer plate 1 of the bilge and is continuously welded to both sides of the outer plate 1 to ensure the watertightness of the connection between the cavity 2 and the outer plate 1.

[0028] Two spacers 3 are provided inside the bottom of the cavity 2. For example, the lower end of the spacer 3 is welded to the upper end of the base plate 22.

[0029] The sacrificial anode 4 is detachably mounted on the pad 3, and the upper end of the sacrificial anode 4 is not higher than the upper end of the outer plate 1 of the bilge. For example, the sacrificial anode 4 is waist-shaped. Preferably, the inner side of the cylinder 21 and the outer side of the sacrificial anode 4 are equidistantly spaced to reduce the space occupied by the mounting structure. The two pads 3 are arranged along the length of the sacrificial anode 4 to ensure that the sacrificial anode 4 is firmly fixed and does not wobble.

[0030] The sacrificial anode mounting structure includes a fixing member 5, the lower part of which passes through the sacrificial anode 4 and is threadedly connected to the pad 3. Specifically, the upper end of the pad 3 has a screw hole 31. The fixing member 5 includes a screw 51, a washer 53, and a spring washer 52. The screw 51 passes through the spring washer 52, the washer 53, and the sacrificial anode 4 in sequence and is threadedly connected to the screw hole 31, thus fixing the sacrificial anode 4 and the pad 3 together. Of course, in other embodiments of this utility model, the sacrificial anode 4 and the pad 3 can also be connected by snap-fit ​​or fastening, as long as it facilitates the installation and disassembly of the sacrificial anode 4 and the pad 3. This utility model does not impose further limitations on this.

[0031] Furthermore, a countersunk hole 41 is opened at the upper end of the sacrificial anode 4, and a gasket 53, a spring washer 52 and a screw 51 are arranged in the countersunk hole 41 from bottom to top. The upper end of the screw 51 is not higher than the upper end of the sacrificial anode 4 to ensure the hull appearance is neat.

[0032] In this embodiment, by detachably installing the sacrificial anode 4 in the cavity 2 structure within the through hole 11 of the outer plate 1 of the bilge, the sacrificial anode 4 is sunk to a height where its upper surface is not higher than the upper surface of the outer plate 1 of the bilge, thereby reducing the additional resistance on the surface of the outer plate 1 of the bilge, ensuring a clean appearance of the hull, and facilitating the replacement of the sacrificial anode 4 in the future, thus saving replacement costs.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A marine sacrificial anode mounting structure, characterized in that, For use in a hull, the hull includes a bilge outer plate, and through holes are formed in the bilge outer plate; the sacrificial anode mounting structure includes: The cavity is a hollow structure with an opening at the top, and is disposed within the through hole; Two pads are disposed at the bottom of the inner side of the cavity; The sacrificial anode is detachably mounted on the pad, and the upper end of the sacrificial anode is not higher than the upper end of the outer plate of the bilge.

2. The marine sacrificial anode mounting structure according to claim 1, characterized in that: The sacrificial anode mounting structure includes a fixing member, the lower part of which passes through the sacrificial anode and is threadedly connected to the pad block.

3. The marine sacrificial anode mounting structure according to claim 2, characterized in that: The upper end of the pad has a screw hole, and the fastener includes a screw, a washer and a spring washer. The screw passes through the spring washer, the washer and the sacrificial anode in sequence and is threadedly connected to the screw hole.

4. The marine sacrificial anode mounting structure according to claim 3, characterized in that: A countersunk hole is formed at the upper end of the sacrificial anode, and the gasket, spring washer and screw are arranged in the countersunk hole from bottom to top, with the upper end of the screw not higher than the upper end of the sacrificial anode.

5. The marine sacrificial anode mounting structure according to claim 1, characterized in that: The cavity 2 includes: The upper outer end of the cylindrical body is connected to the through hole; The bottom plate is located at the lower end of the cylinder.

6. The marine sacrificial anode mounting structure according to claim 5, characterized in that: The lower end of the pad is welded to the upper end of the base plate.

7. The marine sacrificial anode mounting structure according to claim 5, characterized in that: The upper outer end of the cylinder is continuously welded to the outer plate of the bilge on both sides.

8. The marine sacrificial anode mounting structure according to claim 5, characterized in that: The inner side of the cylinder is equidistant from the outer side of the sacrificial anode.