A sacrificial anode mounting structure

By using a protective block and cover plate design with low reducibility in the sacrificial anode mounting structure, combined with a sealed cavity and counterweight, the corrosion problem under bolt installation method is solved, and convenient removal and stable installation of sacrificial anodes are achieved.

CN224678150UActive Publication Date: 2026-08-25JIAOZUO HONGKUN CATHODES PROTECTION ERROSIONPROOF MATERIALS CO LTD
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Patent Information

Application Number
CN202521720186.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-13
Publication Date
2026-08-25
Estimated Expiration
2035-08-13

AI Technical Summary

Technical Problem

In the prior art, the bolt installation method of sacrificial anodes leads to corrosion and deformation of the internal threads, making anode removal difficult and failing to effectively protect the threads from corrosion.

Method used

The structure employs a protective block and cover plate with low reproducibility. The protective block is connected to the steel plate by threads. Combined with the design of the sealing cavity and cover plate, the risk of corrosion is reduced. The installation stability is improved by the counterweight block and clamping plate structure.

Benefits of technology

It effectively protects threads from corrosion, simplifies the anode removal process, extends service life, and improves installation stability and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of sacrifice anode, specifically is a kind of sacrifice anode mounting structure, including ship body shell, the surface of ship body shell is fixedly connected with at least one steel sheet;The surface of steel sheet is equipped with sacrifice anode;The both sides of sacrifice anode are symmetrically fixedly connected with connecting rod;Connecting rod end is fixedly connected with protection block;First screw is threadedly connected between protection block and steel sheet;The surface of protection block is equipped with sealed cavity, and first screw is located in sealed cavity interior;The side of protection block is equipped with cover, and the inner wall of cover is attached with sealed cavity setting;The both sides of cover are symmetrically fixedly connected with inserting rod by lug plate;By setting the protection block of low reducibility, the thread in it can be protected, to reduce the corrosion when using, and the inconvenience caused by the subsequent removal of first screw.
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Description

Technical Field

[0001] This utility model relates to the field of sacrificial anodes, specifically a sacrificial anode mounting structure. Background Technology

[0002] A sacrificial anode is a device that protects a metal structure from corrosion through electrochemical principles. It is typically made of a metal more reactive than the metal being protected, such as zinc, aluminum, or magnesium alloys. When immersed in an electrolyte, such as seawater, the sacrificial anode corrodes preferentially, releasing electrons to form a protective current that makes the protected metal the cathode, thus preventing further corrosion. This passive protection system requires no external power source and features simple structure, easy maintenance, and high reliability, making it widely used in corrosive environments such as marine, chemical, and underground pipeline environments.

[0003] In marine applications, sacrificial anodes are primarily installed in critical components such as the hull, ballast tanks, propellers, and rudders to prevent seawater corrosion. For example, zinc or aluminum alloy anode blocks are welded or bolted to the outer hull plating or cabins, continuously releasing current to counteract the electrochemical corrosion of the steel structure.

[0004] In the existing technology, there are two methods for installing sacrificial anodes: bolt installation and welding installation. During use and observation, it has been found that when the anode is fixed to the outer surface of the ship's exterior by bolt installation, the internal threads are usually made inside the sacrificial anode. When the sacrificial anode corrodes, the internal threads will corrode and deform, making it difficult to remove the anode later.

[0005] Therefore, a sacrificial anode mounting structure is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The sacrificial anode installation structure of this utility model includes a ship hull shell, at least one steel plate is fixedly connected to the surface of the ship hull shell; a sacrificial anode is provided on the surface of the steel plate; connecting rods are symmetrically fixed to both sides of the sacrificial anode; a protective block is fixedly connected to the end of the connecting rod; a first screw is threadedly connected between the protective block and the steel plate; by setting a protective block with low reducibility, the internal threads can be protected, thereby reducing corrosion during use and the inconvenience caused by subsequent removal of the first screw.

[0008] Preferably, the protective block has a sealing cavity on its surface, and the first screw is located inside the sealing cavity; a cover plate is provided on one side of the protective block, and the inner wall of the cover plate is fitted to the sealing cavity; insert rods are symmetrically fixed to both sides of the cover plate through ear plates; by providing the cover plate, the cover plate can seal and protect the first screw inside the protective block, further improving the corrosion resistance of the first screw and the internal threads of the protective block, and extending their service life.

[0009] Preferably, the protective block has a horizontal plate at the top; a retaining plate is fixedly connected to the bottom of the horizontal plate by a connector; the protective block has a sliding groove that slides with the retaining plate; the surface of the insertion rod has a limiting groove corresponding to the protective block; by setting the horizontal plate and the retaining plate, the steel plate is installed on the side of the hull shell, that is, after the insertion rod is inserted into the protective block during installation, the horizontal plate can carry the retaining plate and embed into the limiting groove on the surface of the insertion rod under the action of gravity, so as to quickly fix the cover plate and simplify the fixing operation of the cover plate.

[0010] Preferably, the surface of the horizontal plate is provided with multiple counterweights; by setting counterweights, the density of the horizontal plate and the overall component of the plate can be increased, which makes it easier to overcome the swaying caused by buoyancy in water and improve the stability of the horizontal plate during operation.

[0011] Preferably, the inner wall of the horizontal plate is fixedly connected to a fixing part, and the fixing part is centrally located; the two sides of the horizontal plate are symmetrically provided with second screws, and the second screws are threadedly connected to the fixing part; the counterweight is provided with a round hole corresponding to the second screw; the counterweight is installed by inserting it into a pre-opened groove on the horizontal plate, then inserting the second screw and threading the second screw to the fixing part. During the process, the second screw will penetrate the counterweight and fix the counterweight, so as to realize the rapid assembly of multiple counterweights.

[0012] Preferably, a handle is fixed to the top of the horizontal plate; by providing a handle, the horizontal plate can be lifted by holding the handle when the cover plate is disassembled, which facilitates the operation of the horizontal plate.

[0013] The advantages of this utility model are: 1. The sacrificial anode mounting structure of this utility model can protect its internal threads by setting a protective block with low reducibility, thereby reducing corrosion during use and the inconvenience caused by subsequent removal of the first screw.

[0014] 2. The sacrificial anode mounting structure of this utility model, by setting a cover plate, can seal and protect the first screw inside the protective block, further improving the corrosion resistance of the first screw and the internal threads of the protective block, and extending their service life. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main body of this utility model; Figure 2 This is a schematic diagram of the steel plate structure in this utility model; Figure 3 This is a schematic diagram of the connecting rod in this utility model; Figure 4 This is a schematic diagram of the protective block in this utility model; Figure 5 This is a schematic diagram of the horizontal plate in this utility model.

[0017] In the diagram: 1. Hull shell; 12. Steel plate; 13. Sacrificial anode; 14. Connecting rod; 15. Protective block; 16. First screw; 2. Cover plate; 22. Insert rod; 3. Horizontal plate; 32. Clamping plate; 4. Counterweight; 5. Second screw; 52. Fixing part; 6. Handle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0019] Specific implementation examples are given below.

[0020] Please see Figures 1 to 5As shown in the embodiment of this utility model, a sacrificial anode mounting structure includes a hull shell 1, with at least one steel plate 12 fixedly attached to the surface of the hull shell 1; a sacrificial anode 13 is provided on the surface of the steel plate 12; connecting rods 14 are symmetrically fixedly attached to both sides of the sacrificial anode 13; a protective block 15 is fixedly attached to the end of the connecting rod 14; a first screw 16 is threadedly connected between the protective block 15 and the steel plate 12; by setting the steel plate 12, direct contact between the hull shell 1 and the sacrificial anode 13 can be isolated, reducing the corrosive effect of the sacrificial anode 13 on the hull shell 1, while... The protective block 15 and the steel plate 12 are connected by the first screw 16, which also facilitates the replacement of the sacrificial anode 13. In addition, the protective block 15 has a lower reductivity than the sacrificial anode 13. Specifically, it can be made of stainless steel, which means that the sacrificial anode 13 can protect the protective block 15 from corrosion, thereby reducing the corrosion of the inner wall threads of the protective block 15 and ensuring the convenience of disassembling the first screw 16 later. By setting the protective block 15 with lower reductivity, its internal threads can be protected, thereby reducing the corrosion that occurs during use and the inconvenience caused by the subsequent disassembly of the first screw 16.

[0021] Please see Figures 3 to 5 As shown, the protective block 15 has a sealing cavity on its surface, and the first screw 16 is located inside the sealing cavity; a cover plate 2 is provided on one side of the protective block 15, and the inner wall of the cover plate 2 is fitted to the sealing cavity; insert rods 22 are symmetrically fixed to both sides of the cover plate 2 through ear plates; after the sacrificial anode 13 is installed on the steel plate 12, the cover plate 2 can be inserted into the surface of the protective block 15 through the insert rods 22, and the cover plate 2 will be embedded in the sealing cavity on the surface of the protective block 15, and seal and protect the first screw 16 to reduce the direct contact and corrosion of the first screw 16 by subsequent water. At this time, the cover plate 2 and the protective block 15 can be connected by bolts; by setting the cover plate 2, the cover plate 2 can seal and protect the first screw 16 inside the protective block 15, further improving the anti-corrosion effect on the first screw 16 and the internal threads of the protective block 15, and extending its service life.

[0022] Please see Figure 5 As shown, the top of the protective block 15 is provided with a horizontal plate 3; the bottom of the horizontal plate 3 is fixedly connected to a retaining plate 32 by a connector; the protective block 15 is provided with a sliding groove that slides with the retaining plate 32; the surface of the insertion rod 22 is provided with a limiting groove corresponding to the protective block 15; by setting the horizontal plate 3 and the retaining plate 32, the steel plate 12 is installed on the side of the hull shell 1, that is, after the insertion rod 22 is inserted into the protective block 15 during installation, the horizontal plate 3 can carry the retaining plate 32 and embed it into the limiting groove on the surface of the insertion rod 22 under the action of gravity, so as to quickly fix the cover plate 2 and simplify the fixing operation of the cover plate 2.

[0023] Please see Figure 5As shown, the surface of the horizontal plate 3 is provided with multiple counterweights 4; by setting the counterweights 4, the density of the horizontal plate 3 and the clamping plate 32 as a whole component can be increased, which can help it overcome the swaying caused by buoyancy in water and improve the stability of the horizontal plate 3 when it is working.

[0024] Please see Figure 5 As shown, a fixing part 52 is fixedly connected to the inner wall of the horizontal plate 3, and the fixing part 52 is centrally located; second screws 5 are symmetrically arranged on both sides of the horizontal plate 3, and the second screws 5 are threadedly connected to the fixing part 52; the counterweight 4 is provided with a round hole corresponding to the second screw 5; the installation operation of the counterweight 4 is to insert it into the groove pre-opened on the horizontal plate 3, and then insert the second screw 5 and thread it to the fixing part 52. During the process, the second screw 5 will penetrate the counterweight 4 and fix the counterweight 4, so as to realize the rapid assembly of multiple counterweights 4.

[0025] Please see Figure 5 As shown, a handle 6 is fixedly connected to the top of the horizontal plate 3; by setting the handle 6, the horizontal plate 3 can be lifted by holding the handle 6 when the cover plate 2 is disassembled, which facilitates the operation of the horizontal plate 3.

[0026] Working principle: By setting the steel plate 12, direct contact between the hull shell 1 and the sacrificial anode 13 can be isolated, reducing the corrosive effect of the sacrificial anode 13 on the hull shell 1. Simultaneously, the protective block 15 and the steel plate 12 are connected by the first screw 16, facilitating the replacement of the sacrificial anode 13. Furthermore, the protective block 15 has a lower reductivity than the sacrificial anode 13, and can be made of stainless steel, meaning the sacrificial anode 13 can provide corrosion protection for the protective block 15, thereby reducing corrosion of the inner wall threads of the protective block 15 and ensuring ease of disassembly of the first screw 16 later. After the sacrificial anode 13 is installed on the steel plate 12, the cover plate 2 can be inserted into the surface of the protective block 15 via the insertion rod 22. The cover plate 2 will embed into the sealing cavity on the surface of the protective block 15, sealing and protecting the first screw 16 to reduce subsequent direct contact and corrosion of the first screw 16 by water. At this time, the cover plate 2 and the protective block 15 can be connected by bolts. A horizontal plate 3 and a clamping plate 32 are provided. The steel plate 12 is installed on the side of the hull shell 1. During installation, after the insert rod 22 is inserted into the protective block 15, the horizontal plate 3, along with the clamping plate 32, can be embedded into the limiting groove on the surface of the insert rod 22 under the action of gravity to quickly fix the cover plate 2 and simplify the fixing operation of the cover plate 2. By setting a counterweight 4, the density of the overall components of the horizontal plate 3 and the clamping plate 32 can be increased, which can help overcome the swaying caused by buoyancy in the water and improve the stability of the horizontal plate 3 during operation. The counterweight 4 is installed by inserting it into the pre-cut groove on the horizontal plate 3, and then inserting the second screw 5 and threading the second screw 5 and the fixing part 52. During the process, the second screw 5 will pass through the counterweight 4 and fix the counterweight 4 to achieve quick assembly of multiple counterweights 4. By setting a handle 6, when disassembling the cover plate 2, the horizontal plate 3 can be lifted by holding the handle 6, which facilitates the operation of the horizontal plate 3.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sacrificial anode mounting structure, comprising a ship hull (1), characterized in that: At least one steel plate (12) is fixed to the surface of the hull shell (1); a sacrificial anode (13) is provided on the surface of the steel plate (12); connecting rods (14) are symmetrically fixed to both sides of the sacrificial anode (13); a protective block (15) is fixed to the end of the connecting rod (14); a first screw (16) is threaded between the protective block (15) and the steel plate (12). The protective block (15) has a sealing cavity on its surface, and the first screw (16) is located inside the sealing cavity; a cover plate (2) is provided on one side of the protective block (15), and the inner wall of the cover plate (2) is fitted to the sealing cavity; the two sides of the cover plate (2) are symmetrically fixed with insert rods (22) through ear plates.

2. The sacrificial anode mounting structure according to claim 1, characterized in that: The top of the protective block (15) is provided with a horizontal plate (3); the bottom of the horizontal plate (3) is fixedly connected to a card plate (32) by a connector; the protective block (15) is provided with a sliding groove that slides with the card plate (32); the surface of the insertion rod (22) is provided with a limiting groove corresponding to the protective block (15).

3. The sacrificial anode mounting structure according to claim 2, characterized in that: The surface of the horizontal plate (3) is provided with multiple counterweights (4).

4. The sacrificial anode mounting structure according to claim 3, characterized in that: The inner wall of the horizontal plate (3) is fixed with a fixing part (52), and the fixing part (52) is centrally located; the two sides of the horizontal plate (3) are symmetrically provided with second screws (5), and the second screws (5) are threadedly connected to the fixing part (52); the counterweight (4) is provided with a round hole corresponding to the second screw (5).

5. The sacrificial anode mounting structure according to claim 4, characterized in that: A handle (6) is fixed to the top of the horizontal plate (3).