Iron tower base material protection structure
Patent Information
- Application Number
- CN202521985143.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-09-16
AI Technical Summary
[0003]本实用新型针对现有技术中存在的技术问题，提供一种铁塔基材保护结构，解决现有的锌层被完全消耗，钢铁基材将直接暴露在环境中，腐蚀会迅速开始并加速进行，并且在运输、吊装、安装过程中，镀锌层极易被磕碰、划伤，其抗物理冲击能力弱，任何局部损伤都会暴露钢铁基材，形成“大阴极-小阳极”的恶劣电化学环境，导致暴露点处的腐蚀速度反而比未镀锌的钢铁更快，出现深坑或穿孔的问题
通过镀锌层和第二保护层的设计达到“镀锌层 + 物理隔绝”的双重保护，极大延缓了镀锌层的消耗速度，将铁塔基材的维护周期和寿命提升了数个量级。
Smart Images
Figure CN224902862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of iron tower substrate technology, and more specifically, to a protective structure for iron tower substrate. Background Technology
[0002] The tower foundation is a crucial component of the tower structure, responsible for transferring the tower's load to the ground and ensuring its stability. Since towers are typically used to support and transmit power or communication signals, their foundations must possess sufficient strength and durability to withstand various environmental conditions and loads. Typically, only a single layer of galvanized coating, usually hot-dip galvanizing, is applied to the exterior of the tower base material—a widely used and cost-effective method. However, under harsh environments or long-term requirements, the principle of galvanized protection is cathodic protection, where zinc corrodes preferentially over the steel base material. The zinc layer has a fixed thickness, and its consumption rate directly determines the protection lifespan. Once the zinc layer is completely consumed, the steel base material is directly exposed to the environment, and corrosion begins rapidly and accelerates. Furthermore, during transportation, hoisting, and installation, the galvanized layer is highly susceptible to impacts and scratches, exhibiting weak resistance to physical shock. Any localized damage exposes the steel base material, creating a harsh electrochemical environment of "large cathode - small anode," resulting in a faster corrosion rate at the exposed point compared to ungalvanized steel, leading to deep pits or perforations. Therefore, we propose a protective structure for the tower base material. Utility Model Content
[0003] This utility model addresses the technical problems existing in the prior art by providing a protective structure for the base material of iron towers. It solves the problem that when the zinc layer is completely consumed, the steel base material is directly exposed to the environment, and corrosion will start and accelerate rapidly. Furthermore, during transportation, hoisting, and installation, the galvanized layer is easily bumped and scratched, and its resistance to physical impact is weak. Any local damage will expose the steel base material, forming a harsh electrochemical environment of "large cathode-small anode". As a result, the corrosion rate at the exposed point is faster than that of the ungalvanized steel, leading to problems such as deep pits or perforations.
[0004] To achieve the above objectives, this utility model provides a protective structure for iron tower substrates, including a protective structure body, wherein the protective structure body includes a galvanized layer and a second protective layer, and the service life of the iron tower substrate is extended through the combined action of the galvanized layer and the second protective layer.
[0005] The beneficial effects of this utility model are: By designing a galvanized layer and a second protective layer, dual protection of "galvanized layer + physical isolation" is achieved, which greatly slows down the consumption rate of the galvanized layer and increases the maintenance cycle and lifespan of the tower substrate by several orders of magnitude.
[0006] Based on the above technical solution, the present invention can be further improved as follows.
[0007] As a further improvement to this technical solution, the second protective layer is configured with a cavity structure. The second protective layer contains several vertical partitions and several horizontal partitions, which divide the cavity into several honeycomb grids. Each of the honeycomb grids contains a honeycomb module, and the depth of the honeycomb module is the same as that of the honeycomb grid.
[0008] The beneficial effects of adopting the above-mentioned further solutions are that the cavity separates the external "wet" area from the internal "dry" area. Even if there is a small amount of water seepage into the external protective layer, the moisture will evaporate within the cavity, making it difficult for it to directly contact the galvanized layer. It also reduces the impact of drastic external temperature changes on the internal galvanized layer and the tower substrate, thus reducing thermal stress. Several vertical and horizontal partitions form a dense network of reinforcing ribs, which significantly improves the overall bending, compressive, and deformation (wind vibration, ice load) resistance of the second protective layer. If any honeycomb grid is accidentally damaged and water or contaminated, its impact will be strictly limited to that unit and will not spread to the entire cavity, achieving "fault localization" and greatly improving the reliability of the system. The honeycomb module gives each honeycomb grid extremely high impact and compression resistance, effectively resisting accidental impacts such as hail and dropped tools.
[0009] As a further improvement to this technical solution, the inner wall of the honeycomb grid is uniformly provided with several limiting grooves, and the outer wall of the honeycomb module is uniformly installed with several limiting blocks. The limiting grooves and limiting blocks are adapted to each other.
[0010] The advantage of adopting the above-mentioned further solution is that the design of the limiting groove and the limiting block ensures that each cellular module can be quickly and accurately installed into the predetermined position.
[0011] As a further improvement to this technical solution, a plurality of sealing plates are provided on the outer surface of the second protective layer, and the plurality of sealing plates correspond one-to-one with the positions of the plurality of honeycomb grids. The sealing plates are connected to the second protective layer by bolts.
[0012] The advantage of adopting the above-mentioned further solution is that during maintenance, only the outer sealing plate needs to be opened to remove and replace the damaged individual cellular module, without the need for large-scale removal of the second protective layer.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In the protective structure of this iron tower substrate, the dual protection of "galvanized layer and physical isolation" greatly slows down the consumption rate of zinc layer, increasing the maintenance cycle and life of the iron tower by several orders of magnitude; the "zonal isolation" design ensures that local damage will not lead to global failure, and the system has extremely strong fault tolerance; and the dual reinforcement of "partition and honeycomb" makes the protective layer itself a robust structure that can effectively resist harsh natural environments. The "modular" design of the honeycomb module allows for the replacement of individual modules during maintenance, significantly reducing the maintenance cost throughout the entire life cycle. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model; Figure 3 For the present utility model Figure 2 A schematic diagram of the structure at point A in the middle.
[0015] The meanings of the labels in the diagram are as follows: 1. Protective structure body; 10. Galvanized layer; 11. Second protective layer; 110. Vertical partition; 111. Horizontal partition; 1101. Honeycomb grid; 1102. Honeycomb module; 1103. Limiting groove; 1104. Limiting block; 112. Sealing plate; 1120. Bolt. Detailed Implementation
[0016] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0017] Please see Figures 1-3As shown, this embodiment provides a protective structure for the steel tower substrate, including a protective structure body 1. Considering that under harsh environments or long-term requirements, the principle of galvanized protection is cathodic protection, zinc will corrode preferentially over the steel substrate. The zinc layer has a fixed thickness, and its consumption rate directly determines the protection life. Once the zinc layer is completely consumed, the steel substrate will be directly exposed to the environment, and corrosion will begin rapidly and accelerate. Furthermore, during transportation, hoisting, and installation, the galvanized layer 10 is easily bumped and scratched, and its resistance to physical impact is weak. Any local damage will expose the steel substrate, forming a harsh electrochemical environment of "large cathode - small anode," causing the corrosion rate at the exposed point to be faster than that of the ungalvanized steel, resulting in deep pits or perforations. Therefore, specifically, the protective structure body 1 includes a galvanized layer 10 and a second protective layer 11. The combined action of the galvanized layer 10 and the second protective layer 11 extends the life of the steel tower substrate.
[0018] The improvement in this embodiment is as follows: The design of the galvanized layer 10 and the second protective layer 11 achieves dual protection of "galvanized layer 10 and physical isolation", which greatly slows down the consumption rate of the galvanized layer 10 and increases the maintenance cycle and life of the tower substrate by several orders of magnitude.
[0019] First, the interior of the second protective layer 11 is configured as a cavity structure. The second protective layer 11 contains several vertical partitions 110 and several horizontal partitions 111, which divide the cavity into several honeycomb grids 1101. Each honeycomb grid 1101 contains a matching honeycomb module 1102, the depth of which is the same as that of the honeycomb grid 1101. The cavity separates the external "wet" area from the internal "dry" area. Even if there is a slight water seepage in the external protective layer, the moisture will evaporate in the cavity and will not directly contact the galvanized layer 10. If any honeycomb grid 1101 is accidentally damaged and water gets in or becomes contaminated, its impact will be strictly limited within the unit and will not spread to the entire cavity.
[0020] Secondly, to facilitate maintenance and replacement of the cellular module 1102, several sealing plates 112 are provided on the outer surface of the second protective layer 11. Each sealing plate 112 corresponds one-to-one with a number of cellular grids 1101. The sealing plates 112 are connected to the second protective layer 11 by bolts 1120. Several limiting grooves 1103 are evenly distributed on the inner wall of the cellular grid 1101, and several limiting blocks 1104 are evenly installed on the outer wall of the cellular module 1102. The limiting grooves 1103 and the limiting blocks 1104 are compatible and cooperate with each other. During maintenance, the staff uses tools to unscrew bolt 1120 to remove the outer sealing plate 112, reaches into the cavity to pinch the damaged cellular module 1102, removes the old module along the direction of the limiting groove 1103, inserts the new pre-prepared cellular module 1102, and hears a "click" sound as the limiting block 1104 snaps into the limiting groove 1103. The sealing plate 112 is then reinstalled and tightened, thus completing the replacement of the cellular module 1102.
[0021] In practical use, the joint surface of the galvanized layer 10 and the second protective layer 11 is connected by high-performance sealing strips and sealant. Then, during actual use, the outer shell of the second protective layer 11 first comes into contact with the external environment (rain, sand, UV radiation, impact). Under normal protection conditions, the second protective layer 11 acts as a primary barrier, providing thermal buffering and reducing the impact of drastic external temperature changes on the internal galvanized layer 10 and the tower substrate, thus reducing thermal stress. If a small amount of material seeps in or condenses into the cavity, a stable and dry microenvironment is formed, and the galvanized layer 10 is slowly and evenly consumed (within design expectations), providing chemical protection for the tower substrate. In a damaged state (such as an external impact), if a localized section of the second protective layer 11 and a honeycomb grid 1101 is damaged, one scenario is that the impact is strictly confined within this independent unit, while all other units remain intact and function normally. Another scenario is that moisture and air enter the damaged unit, in which case the galvanized layer 10 activates sacrificial anode protection for that section of the tower substrate, and the overall system protection performance is not significantly affected. Staff will conduct regular inspections or monitor system alarms. If a damaged module is located, the operator will use a climbing device to reach the sealing plate 112, use tools to unscrew the bolts 1120 to remove the outer sealing plate 112, reach into the cavity to grasp the damaged honeycomb module 1102, remove the old module along the direction of the limiting groove 1103, insert the new pre-prepared honeycomb module 1102, and hear a "click" as the limiting block 1104 snaps into the limiting groove 1103. The sealing plate 112 is then reinstalled and tightened, completing the replacement of the honeycomb module 1102. The above describes 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 preferred examples and are not intended to limit the utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A tower base material protection structure comprising a protection structure body (1), characterized by: The protective structure body (1) comprises a galvanized layer (10) and a second protective layer (11), the galvanized layer (10) and the second protective layer (11) jointly prolong the service life of the tower base material, and the second protective layer (11) is internally provided with a cavity structure; The second protective layer (11) is internally provided with a plurality of vertical partitions (110) and a plurality of horizontal partitions (111), the plurality of vertical partitions (110) and the plurality of horizontal partitions (111) divide the cavity into a plurality of honeycomb grids (1101); The outer surface of the second protective layer (11) is provided with a plurality of sealing plates (112), the plurality of sealing plates (112) are respectively and one-to-one corresponding to the plurality of honeycomb grids (1101), and the sealing plate (112) and the second protective layer (11) are connected through a bolt (1120).
2. The tower base material protection structure of claim 1, wherein: The plurality of honeycomb grids (1101) are internally provided with a honeycomb module (1102), and the honeycomb module (1102) is consistent with the depth of the honeycomb grid (1101).
3. The tower base material protection structure of claim 2, wherein: The inner wall of the honeycomb grid (1101) is uniformly provided with a plurality of limiting grooves (1103), and the outer wall of the honeycomb module (1102) is uniformly provided with a plurality of limiting blocks (1104).
4. The tower base material protection structure according to claim 3, characterized by: The limiting groove (1103) and the limiting block (1104) are adaptively matched.