Sacrificial anode anti-corrosion device

The design of the protective cylinder structure solves the problems of easy deformation and poor air permeability of the anode blocks in the soil, and achieves uniform arrangement of the anode blocks and electrolyte flow, thereby improving the stability and corrosion resistance of the device.

CN224280462UActive Publication Date: 2026-05-26NANTONG HAIMEN XINRUI SHIP PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG HAIMEN XINRUI SHIP PARTS CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-26

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Abstract

The utility model relates to the technical field of metal corrosion prevention, and discloses a sacrificial anode corrosion prevention device, which comprises a protection cylinder, a plurality of sacrificial anodes, a plurality of sacrificial anodes and a plurality of sacrificial anodes, the protection cylinder comprises a bottom plate, a plurality of side rods and an upper cover, the side rods are detachably arranged on the bottom plate and equidistantly arranged along the edge of the bottom plate, the upper cover is detachably arranged at the upper ends of the side rods, and an anode connecting seat is arranged on the side wall of the upper cover; the positioning seat is detachably arranged between the side rods, and a plurality of positioning notches are formed in the positioning seat at equal intervals. The utility model has the advantages that the anode blocks are uniformly distributed, the air permeability is enhanced, the electrolyte circulation is facilitated, the whole anode block has a certain bearing effect, and the deformation during burying is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of metal corrosion protection technology, specifically to a sacrificial anode corrosion protection device. Background Technology

[0002] Sacrificial anode protection is a metal corrosion protection technology based on the principle of electrochemical corrosion. It involves using a more negatively charged metal, such as zinc, aluminum, magnesium, or their alloys, as the sacrificial anode, electrically connecting it to the metal being protected, such as steel pipes or storage tanks, to form a galvanic cell. In a corrosive environment, the sacrificial anode, acting as the anode, preferentially undergoes oxidation and is corroded, releasing electrons that flow to the protected metal, making it the cathode and thus inhibiting metal corrosion. This method requires no external power source, is easy to install and maintain, and is suitable for electrolyte environments such as soil and seawater. It is widely used for corrosion protection of metal structures in petrochemical, marine engineering, and municipal infrastructure fields.

[0003] The sacrificial anode block bagged burial connection method may have the following problems: external forces during soil backfilling can easily cause deformation, internal breakage, or bag damage to the anode block, affecting conductivity; if the bag material has poor air permeability, it will hinder electrolyte flow, leading to uneven anode corrosion; any abnormalities after burial require excavation and inspection, resulting in high maintenance costs. During installation, attention should be paid to reinforcing the connection and optimizing the backfilling process to reduce potential risks. Utility Model Content

[0004] To solve the above-mentioned problems, this utility model proposes a sacrificial anode corrosion protection device that ensures uniform distribution of anode blocks, enhances air permeability, facilitates electrolyte flow, provides a certain load-bearing capacity, and prevents deformation during burial.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is: a sacrificial anode corrosion protection device, comprising:

[0006] The protective cylinder includes a base plate, side rods and a top cover. The side rods are detachably mounted on the base plate and are provided at equal intervals along the edge of the base plate. The top cover is detachably mounted on the upper end of the side rods and has an anode connection seat on its side wall.

[0007] The positioning seat is detachably located between the side rods, and has several positioning slots evenly spaced on it.

[0008] Furthermore, the upper cover includes a cover plate and a connecting ring. The connecting ring is fixedly disposed below the cover plate by a number of support rods. A number of guide seats are fixedly disposed on the inner side of the connecting ring. The guide seats correspond one-to-one with the side rods. The upper end of the side rod slides through the guide seats.

[0009] Furthermore, the guide seat is composed of two L-shaped blocks arranged opposite each other, and a guide groove is formed between the two L-shaped blocks on the same guide seat for the side rod to slide through.

[0010] Furthermore, the upper and lower ends of the side rod are respectively inserted into the base plate and the cover plate.

[0011] Furthermore, the base plate, cover plate, and positioning seat are all circular plates, and the side rods and positioning slots are all arranged in a ring.

[0012] Furthermore, the base plate, top cover, and side rods are made of the same material.

[0013] Furthermore, the positioning seat sidewall and side rod are provided with interlocking slots.

[0014] Compared with existing technologies, the advantages of this invention are as follows: the circular base plate, cover plate, and annularly distributed side rods form a compact frame structure, allowing the anode blocks to be evenly arranged along the annular positioning groove of the positioning seat, avoiding excessive or insufficient local corrosion protection. The slotted fitting design of the positioning seat and side rods ensures accurate positioning of the anode blocks and guarantees uniform spatial distribution. The gap formed between the side rods and the sliding structure of the guide seat create a through air channel inside the device, enhancing breathability and providing a path for electrolyte flow. The homogeneous materials and supporting structure of the base plate, side rods, and top cover give the device overall load-bearing capacity. The circular plate components and annular distribution mechanical design ensure even distribution of force, resisting soil pressure even during burial, effectively preventing deformation, and ensuring long-term stable performance of the anti-corrosion function. Attached Figure Description

[0015] Figure 1 This is a three-dimensional representation of the present invention. Figure 1 ;

[0016] Figure 2 This is a three-dimensional representation of the present invention. Figure 2 ;

[0017] Figure 3 This is the front view of this utility model;

[0018] Figure 4 This is a side view of the present invention.

[0019] As shown in the figure: 1. Base plate; 2. Side rod; 3. Anode connector; 4. Positioning seat; 5. Cover plate; 6. Connecting ring; 7. Support rod; 8. L-shaped block. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] Combined with appendix Figure 1 A sacrificial anode corrosion protection device includes: a protective cylinder, comprising a base plate 1, a side rod 2, and a top cover. The base plate 1, the top cover, and the side rod 2 are made of the same material, which can avoid electrochemical reactions caused by different materials, ensure the overall corrosion protection performance of the device, and at the same time, the bearing force is uniform, which can effectively prevent the device from deforming.

[0022] Combined with appendix Figure 2 Appendix Figure 3 Appendix Figure 4 The side rods 2 are detachably mounted on the base plate 1, and several are equidistantly arranged along the edge of the base plate 1. The top cover is detachably mounted on the upper end of the side rods 2, and an anode connecting seat 3 is provided on its side wall. The top cover includes a cover plate 5 and a connecting ring 6. The connecting ring 6 is fixed below the cover plate 5 by several support rods 7. Several guide seats are fixed inside the connecting ring 6, and each guide seat corresponds to a side rod 2. The upper end of the side rod 2 slides through the guide seat. The guide seats allow the top cover and the side rods 2 to slide together, facilitating the installation and removal of the top cover. At the same time, the guide seats guide and position the side rods 2, ensuring the stability of the device structure. The guide seat consists of two L-shaped blocks 8 arranged opposite each other. A guide groove is formed between the two L-shaped blocks 8 on the same guide seat, allowing the side rods 2 to slide through accurately, ensuring smooth sliding of the side rods 2 and improving the convenience of device installation. The upper and lower ends of the side rod 2 are respectively inserted into the base plate 1 and the cover plate 5, which makes installation convenient and allows for quick assembly of the device, while ensuring a firm connection between the side rod 2 and the base plate 1 and the cover plate 5.

[0023] Combined with appendix Figure 1 Appendix Figure 2 The positioning seat 4 is detachably disposed between the side rods 2, and has several positioning slots evenly spaced on it. The side wall of the positioning seat 4 and the side rods 2 are provided with interlocking grooves, which can stably fix the positioning seat 4 between the side rods 2, prevent the positioning seat 4 from shaking, and ensure accurate positioning of the sacrificial anode.

[0024] Combined with appendix Figure 1 Appendix Figure 2 The base plate 1, cover plate 5 and positioning seat 4 are all circular plates, and the side rods 2 and positioning slots are all distributed in a ring. The overall structure of the device is compact and symmetrical, and the force is uniform, which is conducive to the uniform arrangement of sacrificial anodes and improves the anti-corrosion effect.

[0025] The specific implementation of this utility model is as follows: Side rods 2 are equidistantly inserted and fixed along the edge of the base plate 1, with the base plate 1 supporting the entire device. Next, positioning seats 4 are fitted into the slots of the side rods 2 via their side walls, creating a ring-shaped distribution of positioning slots. Then, sacrificial anode blocks are embedded into the positioning slots of the positioning seats 4, ensuring uniform distribution. Next, the guide seat of the upper cover is aligned with the upper end of the side rod 2, and slid down along the side rod 2, allowing the side rod 2 to pass through the guide slot. The upper cover is then fixed to the upper end of the side rod 2, and the sacrificial anode blocks are connected to the anode connection seat 3 of the upper cover. Finally, the entire device is buried in the area requiring corrosion protection, with the anode connection seat 3 connecting to the protected object, forming an electrochemical protection circuit. The circular plate structure and ring-shaped distribution design of the device ensure uniform stress during burial. The sliding connection between the side rods 2 and the guide seat facilitates installation, and the slot design of the positioning seat 4 ensures the stability of the anode blocks, thereby achieving effective corrosion protection for the protected object.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; for those skilled in the art, the specific meaning of the above term in this utility model can be understood according to the specific circumstances.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sacrificial anode corrosion protection device, characterized in that, include: The protective cylinder includes a base plate (1), side rods (2) and a top cover. The side rods (2) are detachably mounted on the base plate (1) and are provided at equal intervals along the edge of the base plate (1). The top cover is detachably mounted on the upper end of the side rods (2) and has an anode connection seat (3) on its side wall. The positioning seat (4) is detachably located between the side rods (2), and several positioning slots are equally spaced on it.

2. The sacrificial anode corrosion protection device according to claim 1, characterized in that: The upper cover includes a cover plate (5) and a connecting ring (6). The connecting ring (6) is fixedly disposed below the cover plate (5) by a number of support rods (7). A number of guide seats are fixedly disposed on the inner side of the connecting ring (6). The guide seats correspond one-to-one with the side rods (2). The upper end of the side rods (2) slides through the guide seats.

3. The sacrificial anode corrosion protection device according to claim 2, characterized in that: The guide seat consists of two L-shaped blocks (8) arranged opposite each other, and a guide groove is formed between the two L-shaped blocks (8) on the same guide seat for the side rod (2) to slide through.

4. The sacrificial anode corrosion protection device according to claim 2, characterized in that: The upper and lower ends of the side rod (2) are respectively inserted into the bottom plate (1) and the cover plate (5).

5. The sacrificial anode corrosion protection device according to claim 2, characterized in that: The base plate (1), cover plate (5) and positioning seat (4) are all circular plates, and the side rods (2) and positioning slots are all distributed in a ring.

6. The sacrificial anode corrosion protection device according to claim 1, characterized in that: The base plate (1), the top cover, and the side rods (2) are made of the same material.

7. The sacrificial anode corrosion protection device according to claim 1, characterized in that: The positioning seat (4) has slots on its side wall and side rod (2) that can fit into each other.