Wind-wave-resistant corrosion-resistant maintenance-free lamp pile and preparation process thereof

Abstract

The invention provides a wind-wave-resistant and corrosion-resistant lamp pile. The wind-wave-resistant and corrosion-resistant lamp pile comprises a pile body stand column; the top platform is arranged above the pile body stand column; the lamp pile base is arranged below the pile body stand column; the polyethylene layer is attached to the outer sides of the pile body stand column, the top platform and the lamp pile base; wherein the polyethylene layer, the pile body stand column, the top platform and the lamp pile base are integrally formed, no gap exists between the polyethylene layer and the pile body stand column, and no gap exists between the top platform and the lamp pile base. The corrosion resistance and the structural stability are effectively improved, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of lamp posts, and in particular, to a lamp post resistant to wind and waves and corrosion, and a preparation process thereof. Background Art

[0002] A lamp post is a fixed navigational aid, mainly a sign indicating the direction of a waterway, boundaries, and navigational hazards, including crossing marks, shore marks, leading marks, transitional leading marks, end leading marks, side marks, port and starboard lateral marks, position marks, flood marks, and bridge and culvert marks, etc. It is an artificial sign that helps guide ships to navigate, position, and indicate navigational hazards and give warnings. In the prior art, the navigational aid is made of metal and coated with a protective paint layer and a polyethylene layer on the outer surface. However, the existing polyethylene layers of navigational aids are directly sleeved outside the navigational aid in the form of sleeves, with poor fixity. During long-term use, due to the gap between the polyethylene outer shell and the metal layer of the navigational aid, even with the presence of the polyethylene layer, the traditional metal navigational aid has poor fixity of the polyethylene layer and still has the problem of accelerated corrosion of the metal matrix. Summary of the Invention

[0003] Therefore, the embodiments of the present invention provide a lamp post resistant to wind and waves and corrosion, which has the advantages of eliminating gaps through integral molding of the polyethylene layer and the main structure, preventing seawater from permeating and corroding, effectively improving corrosion resistance and structural stability, and extending the service life.

[0004] To solve the above problems, the present application provides a lamp post resistant to wind and waves and corrosion, and the technical solution is as follows: The lamp post resistant to wind and waves and corrosion includes: a pile body column; a top platform, which is arranged above the pile body column; a lamp post base, which is arranged below the pile body column; a polyethylene layer, which is attached to the outer sides of the pile body column, the top platform, and the lamp post base; wherein, the polyethylene layer and the pile body column, the top platform, and the lamp post base are integrally formed, and there is no gap between the polyethylene layer and the pile body column, the top platform, and the lamp post base.

[0005] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The present application realizes the seamless combination of the metal matrix and the anti-corrosion layer, fundamentally blocking the penetration channel of the corrosion medium. The firm combination between the protective layer and the matrix can resist the mechanical stress caused by wind and wave impact, avoiding the peeling and failure of the protective layer. This structure significantly extends the service life of the lamp post in the marine environment, reduces the maintenance frequency, and ensures the continuous and stable operation of the navigational aid function.

[0006] Furthermore, the present application also proposes that the pile body column includes: a first pile body, which is connected to the lamp post base; a second pile body, which is connected to the first pile body; a third pile body, which is arranged between the second pile body and the lamp post base; wherein, when the polyethylene layer is attached to the outer side of the pile body column, the polyethylene layer is sequentially arranged on the first pile body, the second pile body, and the third pile body.

[0007] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The traditional lamp post adopts a single-column structure, and the polyethylene sleeve is prone to the problem of loose fitting during long-distance coverage. In this solution, the column is divided into a three-section structure, and the wrapping distance of each section of the polyethylene layer is shortened through a layered covering method, reducing the forming difficulty. At the same time, the triangular support formed by the third pile body can inhibit the swinging amplitude of the column in the wind and waves, and reduce the relative displacement between the metal base material and the polyethylene layer due to deformation.

[0008] Furthermore, this application also proposes that the anti-wind-wave and corrosion-resistant lamp post further includes: connecting plates, which are arranged at both ends of the first pile body, the second pile body, both ends of the third pile body, and both ends of the lamp post base, and the connecting plates all extend inward; wherein, a plurality of connecting piece installation positions are provided on the connecting plates.

[0009] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: This application realizes the tight fitting between the metal skeleton and the polyethylene protective layer, avoids the formation of gaps caused by insufficient connection stability, effectively blocks the contact between the corrosion medium and the metal surface, and solves the problem of accelerated corrosion of traditional navigation aids due to the separation of the protective layer and the metal layer.

[0010] Furthermore, this application also proposes that the anti-wind-wave and corrosion-resistant lamp post further includes: strengthening members, which are arranged between both ends of the first pile body, the second pile body, both ends of the third pile body, and the lamp post base.

[0011] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The traditional lamp post only relies on the metal wall thickness of the column itself to resist wind and wave loads, and no strengthening structure is set at the key joints. When encountering strong winds and waves, the joints of the column are prone to plastic deformation, resulting in the formation of gaps between the outer polyethylene protective layer and the metal matrix. In this solution, strengthening members are arranged at both ends of the column and the connections of the base to form an overall stress framework, increasing the structural stiffness by about 1.8 times and effectively suppressing the deformation amount at the connection part.

[0012] Furthermore, this application also proposes that the anti-wind-wave and corrosion-resistant lamp post further includes: a first external ladder, which is arranged on the outside of the lamp post base; a second external ladder, which is arranged on the outside of the first pile body, and the first external ladder and the second external ladder are arranged correspondingly; a circular guardrail, which surrounds and is arranged on the second external ladder and the first external ladder.

[0013] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The existing external climbing facilities of navigation aids usually adopt a single ladder and lack a protective structure. Maintenance personnel need to climb on an open ladder section without guardrail protection, which poses a risk of falling. This solution ensures the continuity of the path by setting corresponding upper and lower external ladders, and constructs a three-dimensional protection space through the surrounding guardrail, significantly enhancing the safety while maintaining the climbing function.

[0014] Furthermore, the present application also proposes a lamp post that resists wind and waves and is corrosion-resistant, which further includes: a maintenance platform provided on the second pile body, with an external ladder opening provided on the maintenance platform, and the external ladder opening is correspondingly arranged with the second external ladder; a maintenance guardrail; the maintenance guardrail is provided on the maintenance platform; a support member provided between the maintenance platform and the maintenance guardrail; a maintenance door provided on the second pile body, and the maintenance door communicates with the inside of the second pile body.

[0015] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The present application realizes the maintenance of the integrity of the protective layer during the maintenance process and reduces the corrosion risk of the metal layer caused by gaps. At the same time, the corresponding arrangement of the maintenance platform and the external ladder improves the maintenance efficiency, the combined structure of the support member and the guardrail enhances the operation safety, and the integrally formed design of the maintenance door further blocks the seawater penetration path.

[0016] Furthermore, the present application also proposes that the lamp post that resists wind and waves and is corrosion-resistant further includes: a maintenance handrail provided on the second pile body, and the maintenance handrail is correspondingly arranged with the external ladder opening.

[0017] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: Traditional lamp posts only have a simple guardrail around the external ladder opening and lack a vertical auxiliary support structure. When maintenance personnel climb, they have to rely entirely on the ladder crossbars, which poses a risk of hand slipping. This solution adds a special handrail at the key node of the operation moving line at the ladder opening to form a three-dimensional protection system.

[0018] Furthermore, the present application also proposes that the lamp post that resists wind and waves and is corrosion-resistant further includes: an internal ladder provided inside the pile body column, the top platform and the lamp post base; a plurality of connecting platforms sequentially provided between the pile body column, the top platform and the lamp post base; a plurality of internal ladder openings, and the plurality of internal ladder openings are correspondingly arranged on the plurality of connecting platforms one by one, and the internal ladder and the internal ladder opening are correspondingly arranged.

[0019] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: Traditional lamp posts mostly adopt an external ladder structure, and their metal components are directly exposed to the marine atmospheric environment. Even if a protective layer is provided, the coating is worn due to frequent use, accelerating corrosion. However, this solution completely isolates the stress structure from the corrosive environment through an internal ladder system, and at the same time uses the connecting platforms to form a closed maintenance channel, which not only ensures the integrity of the protective layer but also avoids damage to the protective structure during maintenance operations.

[0020] Furthermore, the present application also proposes that the wave and corrosion-resistant light pile further includes: a support platform disposed on the top platform; a support guardrail connected to the support platform; a top guardrail wrapping the support guardrail, and the top guardrail is formed by rotational molding of linear low-density polyethylene; a light pile hatch cover disposed on the support platform and communicating with the inside of the pile body column; a lightning rod disposed on the support platform; and a navigation light disposed on the support platform.

[0021] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: Most existing light piles use metal guardrails installed dispersedly at the top, and there are joints between components, resulting in corrosion hazards. In this solution, seamless cladding is achieved by rotational molding of the top guardrail, preventing seawater from seeping in through the joints and corroding the internal metal structure. In the prior art, lightning rods and navigation lights are usually installed separately, occupying a large space and having an interference risk. In this solution, the installation positions are integrated through the support platform to optimize the layout in a limited space. The inspection opening of traditional light piles uses a simple cover plate structure, and sealing failure is likely to occur after long-term use. In this solution, the waterproof performance of the hatch cover is improved through hinge connection and sealing rubber strips.

[0022] Furthermore, the present application also proposes that the wave and corrosion-resistant light pile further includes: a lightning rod installation position disposed on the side of the support guardrail away from the pile body column; a navigation light installation position disposed on the support platform, and the navigation light installation position includes: a plurality of support columns sequentially disposed on the support platform; a plurality of connectors corresponding to the support columns one by one, and one end of the connector is connected to the support column, and the opposite end is connected to the support guardrail; a navigation light mounting seat disposed between the plurality of connectors; and a top handrail disposed on the support platform.

[0023] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The present application realizes the three-dimensional stable fixation of the navigation light mounting seat in a wave environment, effectively suppressing the relative displacement between the connector and the support column, and reducing the risk of fatigue fracture of metal components caused by stress concentration. The independent layout of the lightning rod installation position blocks the diffusion path of salt spray corrosion and extends the service life of the lightning protection system. The integrated structure of the top handrail and the support platform ensures maintenance safety while avoiding secondary maintenance operations caused by corrosion of traditional independent guardrails.

[0024] An embodiment of the present invention also provides a preparation process for a wave-resistant and corrosion-resistant lamp post. The preparation process for the wave-resistant and corrosion-resistant lamp post is used to prepare the wave-resistant and corrosion-resistant lamp post described in any one of the above, and the lamp post preparation process includes: S100: By using steel welding processing, the steel plate is bent to produce a top platform, two lamp post vertical cones, and three column piles; S200: Perform galvanizing and heavy anti-corrosion processes on the top platform, two lamp post vertical cones, and three column piles; S300: Perform linear low-density polyethylene rotational molding on the top platform, two lamp post vertical cones, and three column piles; S400: Reserve a lightning rod installation hole position and a lamp post warehouse cover on the top platform; S500: Reserve a ladder installation opening on the side of the lower lamp post vertical cone and install an external ladder to the lower lamp post; S600: Reserve a ladder installation opening on the side of the lower column pile and install an external ladder to the lower lamp post, and install a maintenance platform on the middle column pile; S700: Install internal ladders to the top platform, two lamp post vertical cones, and three column piles respectively, and then connect the top platform, two lamp post vertical cones, and three column piles in sequence.

[0025] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The traditional process uses a prefabricated polyethylene sleeve to cover the metal matrix, resulting in an assembly gap between the sleeve and the matrix, which allows corrosive media to penetrate. In this process, the polyethylene layer is directly fused with the metal surface through rotational molding, eliminating the gap at the source. At the same time, the synergistic effect of galvanizing and rotational molding processes forms a triple protection system of metal-zinc layer-polyethylene, significantly improving the corrosion resistance compared to a single coating or a mechanical covering structure.

[0026] Further, in S300, the linear low-density polyethylene rotational molding process is realized for the top platform, two lamp post vertical cones, and three column piles through a rotational molding device. The rotational molding device includes: a rotational molding device body, an installation space is provided inside the rotational molding device body, and pile body fixing parts are provided at both ends of the rotational molding device body and protrude; pile body rollers, the pile body rollers are detachably arranged on the rotational molding device body; a plurality of rotational molding connecting parts, the plurality of rotational molding connecting parts are arranged between the rotational molding device body and the pile body fixing parts, and the rotational molding connecting parts protrude from the pile body fixing parts; a heating component, the heating component is arranged in the installation space, and a plurality of heating rods arranged axially are provided inside the heating component; a plurality of temperature detection components, the temperature detection components are arranged on the rotational molding connecting parts, and each rotational molding connecting part is arranged at intervals along the axis in sequence.

[0027] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: In the traditional process, static sleeve encapsulation or segmented coating methods are used, and the gap between the metal matrix and the polyethylene layer cannot be eliminated. In this solution, by combining rotational heating and dynamic temperature control, the polyethylene material can freely flow and fill along the metal surface in a molten state, eliminating the voids generated by material shrinkage or uneven coverage in the traditional process. The segmented arrangement of the axial heating rods can precisely match the heat dissipation characteristics of different parts of the lamp post compared with the traditional overall heating method. For example, for the connecting plate area with a sudden cross-sectional change, the heating intensity is enhanced to avoid local unmelted defects. The temperature detection component embedded in the rotational molding connector can directly monitor the actual temperature at the material-metal interface compared with external temperature measurement devices. For example, increasing the sensor density at the bending of the connecting plate can effectively improve the temperature control accuracy.

[0028] As can be seen from the above, a wave-resistant and corrosion-resistant lamp post, its connection structure, ladder system and top assembly provided by this application, through the structural design of integrally molding the polyethylene layer with the pile body column, top platform and lamp post base without gaps, effectively blocks seawater from penetrating and corroding the metal matrix, and at the same time enhances the overall wave-resistant performance, having the advantages of strong corrosion resistance, high structural stability and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 It is a schematic structural diagram of a wave-resistant and corrosion-resistant lamp post provided by an embodiment of the present invention.

[0031] Figure 2 It is a schematic structural diagram of the top platform provided by an embodiment of the present invention.

[0032] Figure 3 It is a schematic structural diagram of the pile body column provided by an embodiment of the present invention.

[0033] Figure 4 It is one of the schematic structural diagrams of the second pile body provided by an embodiment of the present invention.

[0034] Figure 5 It is the second of the schematic structural diagrams of the second pile body provided by an embodiment of the present invention.

[0035] Figure 6 It is one of the schematic structural diagrams of the lamp post base provided by an embodiment of the present invention.

[0036] Figure 7This is the second structural schematic diagram of the lamp post base provided by the embodiments of the present invention.

[0037] Figure 8 This is the flow chart of the preparation process of the wave-resistant and corrosion-resistant lamp post provided by the second embodiment of the present invention.

[0038] Figure 9 This is the first structural schematic diagram of the rotational molding device.

[0039] Figure 10 This is the second structural schematic diagram of the rotational molding device.

[0040] Explanation of reference numerals:

[0041] 100 is the wave-resistant and corrosion-resistant lamp post; 110 is the top platform; 111 is the support platform; 112 is the support guardrail; 113 is the top guardrail; 114 is the lamp post hatch cover; 115 is the lightning rod; 116 is the navigation light; 117 is the support column; 118 is the connecting piece; 119 is the navigation light mounting seat; 120 is the pile body column; 130 is the lamp post base; 131 is the first external ladder; 140 is the third pile body; 141 is the second external ladder; 142 is the circular guardrail; 150 is the second pile body; 151 is the maintenance platform; 152 is the maintenance guardrail; 153 is the support piece; 154 is the maintenance door; 155 is the maintenance handrail; 160 is the first pile body; 170 is the connecting plate; 171 is the strengthening piece; 172 is the internal ladder; 180 is the polyethylene layer; 200 is the rotational molding device; 210 is the rotational molding device body; 211 is the pile body fixing piece; 220 is the pile body roller; 230 is the rotational molding connecting piece; 240 is the heating component; 241 is the heating rod. Detailed implementation manners

[0042] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0043] See Figure 1 , which is the first structural schematic diagram of a wave-resistant and corrosion-resistant lamp post 100 provided by the embodiments of the present invention. Specifically, see Figures 1 - 7, in the prior art, lamp posts are used as fixed navigational aids to indicate the direction of the waterway and navigational hazards. Traditional navigational aids are made of metal and coated with a protective paint and a polyethylene layer 180 on the outer surface. However, in the prior art, the polyethylene protective layer usually adopts a sleeve structure and is directly sleeved on the metal substrate. This structure has the defect of insufficient fixation. Due to the assembly gap between the sleeve and the metal substrate, under the long-term action of the marine environment, corrosive media can penetrate through the gap to the metal surface, resulting in accelerated corrosion of the metal layer and ultimately affecting the service life of the navigational aid.

[0044] To solve the above problems, it is found that the fundamental reason for the failure of the traditional protective layer lies in the existence of the interface gap. The conventional sleeve-type protective layer only realizes physical coverage through mechanical fixation and cannot completely eliminate the microscopic voids between the metal and the polyethylene layer 180. During the research and development process, attempts were made to improve the fixation method, but it was found that bolt connection or bonding processes would still introduce new stress concentration points. Through the exploration of the material composite process, it is found that the use of the one-piece forming technology can form a molecular-level bond between the polyethylene layer 180 and the metal substrate, thereby completely eliminating the interface gap. Based on this, a scheme of synchronously forming the polyethylene protective layer and the main structure of the lamp post is proposed to realize a gapless composite structure.

[0045] Therefore, the present application proposes a lamp post 100 with wind and wave resistance and corrosion resistance, including a pile body column 120, a top platform 110, a lamp post base 130, and a polyethylene layer 180. The top platform 110 is arranged above the pile body column 120, the lamp post base 130 is arranged below the pile body column 120, and the polyethylene layer 180 adheres to the outer sides of the pile body column 120, the top platform 110, and the lamp post base 130. Among them, the polyethylene layer 180 and the pile body column 120, the top platform 110, and the lamp post base 130 are formed by an integral forming process, and there is no gap between them.

[0046] Among them, the pile body column 120 refers to a vertical column that constitutes the main support structure of the lamp post and can be realized by a steel pipe or a steel truss structure, and is used to transfer the top load to the lamp post base 130. The top platform 110 refers to a horizontal load-bearing structure arranged at the top of the column and can be formed by welding steel plates, and is used to install navigation equipment. The lamp post base 130 refers to a fixed structure located at the bottom of the column and can be realized by an enlarged concrete foundation or a steel flange plate, and is used to fix the lamp post to the seabed foundation. The polyethylene layer 180 refers to an anti-corrosion protective layer covering the outer surface of the metal component and is synchronously processed with the metal substrate through a rotational molding or injection molding process, and its thickness can be controlled within the range of 5-15 mm. Integral forming means directly forming the polyethylene material on the surface of the metal substrate in a molten state and forming a gapless composite interface after cooling.

[0047] Specifically, the pile body column 120 serves as the main load-bearing member to support the equipment load of the top platform 110, and the lamp pile base 130 realizes overall stability through the anchoring structure. The polyethylene layer 180 is combined with the metal matrix through a high-temperature melting process. During the forming process, the polyethylene material penetrates into the microscopic pores on the metal surface to form a mechanical interlocking structure. After cooling and solidification, intermolecular forces are generated at the interface between the polyethylene layer 180 and the metal, eliminating the assembly gap of the traditional sleeve structure. This composite structure can effectively block the contact path between seawater, salt spray and the metal matrix in the marine environment, avoiding the occurrence of electrochemical corrosion. At the same time, the one-piece forming process enables the protective layer to evenly cover the surface of the special-shaped structure, avoiding the generation of local weak points.

[0048] Compared with the prior art, the traditional sleeve-type protective layer needs to be separately manufactured and then sleeved outside the metal component, and millimeter-level gaps are easily generated during the assembly process. In this solution, the synchronous forming process enables the protective layer and the metal matrix to form a continuous interface, and the gap is eliminated to less than the micron level. In the conventional technology, the protective layer is only fixed by friction and is prone to displacement and cracking under the impact of waves. In this solution, the interfacial bonding force formed by molecular-level bonding is more than 10 times that of traditional mechanical fixing, significantly improving the anti-peeling ability of the protective layer. In addition, the traditional process cannot cover complex connection parts, and this solution can achieve seamless coverage of the entire surface.

[0049] Through the above technical solution, this application realizes the seamless combination of the metal matrix and the anti-corrosion layer, fundamentally blocking the penetration channel of the corrosive medium. The firm combination between the protective layer and the matrix can resist the mechanical stress caused by wind and wave impacts, avoiding the shedding and failure of the protective layer. This structure significantly extends the service life of the lamp pile in the marine environment, reduces the maintenance frequency, and ensures the continuous and stable operation of the navigation mark function.

[0050] This application further proposes that the pile body column 120 includes a first pile body 160, a second pile body 150, and a third pile body 140. The first pile body 160 is connected to the lamp pile base 130, the second pile body 150 is connected to the first pile body 160, and the third pile body 140 is arranged between the second pile body 150 and the lamp pile base 130. When the polyethylene layer 180 fits on the outer side of the pile body column 120, it sequentially covers the first pile body 160, the second pile body 150, and the third pile body 140.

[0051] Among them, the first pile body 160 refers to the vertical support structure directly connected to the lamp pile base 130, which can be realized by using a hollow cylindrical structure and is used to construct the basic support section of the pile body. The second pile body 150 refers to the extension structure connected to the top of the first pile body 160, and a tubular structure with the same diameter as the first pile body 160 can be used, which is used to extend the height of the pile body. The third pile body 140 refers to the auxiliary support structure arranged between the first pile body 160 and the second pile body 150, such as a tubular component arranged obliquely, which is used to form a triangular support relationship to enhance the structural stability.

[0052] Specifically, the bottom end of the first pile body 160 is fixedly welded to the lamp pile base 130, and the top end is connected to the second pile body 150 through a flange. Both ends of the third pile body 140 are respectively welded to the middle section of the second pile body 150 and the side surface of the lamp pile base 130 to form an inclined support. The polyethylene layer 180 is integrally formed on the surfaces of the three pile body columns 120 through a rotational molding process, covering all connection parts. Since the three pile body columns 120 form a layered structure, the polyethylene layer 180 can wrap each column in sections and completely seal the gaps at the joints. For example, at the connection node between the second pile body 150 and the third pile body 140, the polyethylene layer 180 forms a continuous covering layer through mold forming to eliminate the risk of metal surface exposure.

[0053] Compared with the prior art, traditional lamp piles adopt a single-column structure, and it is easy to have problems of poor fitting when the polyethylene sleeve is covered over a long distance. In this solution, the column is divided into a three-section structure, and the wrapping distance of each section of the polyethylene layer 180 is shortened through a layered covering method, reducing the molding difficulty. At the same time, the triangular support formed by the third pile body 140 can suppress the swinging amplitude of the column in the wind and waves, reducing the relative displacement between the metal base material and the polyethylene layer 180 due to deformation.

[0054] Through the above technical solution, the present application can effectively eliminate the gap between the polyethylene protective layer and the metal column, improving the bonding strength between the two. The segmented column structure makes it easier for the polyethylene layer 180 to achieve complete wrapping, avoiding the joints from becoming weak points of corrosion. The introduction of the inclined support structure enhances the overall rigidity of the pile body, reducing the deformation of the metal base material under harsh sea conditions, thereby maintaining the integrity and long-term anti-corrosion performance of the protective layer. In addition, the segmented structure is convenient for factory prefabrication and on-site assembly, improving production efficiency and construction convenience.

[0055] The present application further proposes a connecting plate 170, which is arranged at both ends of the first pile body 160, the second pile body 150, both ends of the third pile body 140, and both ends of the lamp pile base 130, and the connecting plate 170 extends inward. Among them, a plurality of mounting positions for the connecting members 118 are provided on the connecting plate 170.

[0056] Among them, the connecting plate 170 refers to a plate-like structure arranged at the ends of the first pile body 160, the second pile body 150, the third pile body 140, and the lamp pile base 130. Specifically, it can be realized by welding metal plates or bolt fixation. Its inward extension structure can concentrate the connection positions of adjacent structural members inward, thereby improving the connection strength. The mounting positions for the connecting members 118 refer to through holes or threaded holes distributed on the connecting plate 170. Specifically, they can be formed by drilling or stamping processes. The multi-hole arrangement provides multi-point fixed support for fasteners, ensuring a gapless fit between the metal skeleton and the polyethylene layer 180.

[0057] Specifically, the connecting plates 170 are respectively installed at both ends of the first pile body 160, both ends of the second pile body 150, both ends of the third pile body 140, and both ends of the lamp pile base 130, and adopt a layout form extending inward. The connecting plates 170 are rigidly connected to the columns and the base by welding or bolt fixing methods, and their extending directions point to the interior of the structure, so that the force transmission path at the connection is transferred to the interior. Multiple mounting positions for the connecting members 118 distributed on the connecting plates 170 can accommodate bolts, rivets or welding points at the same time, and adjacent components are fixed through multi-position fastening, eliminating the assembly gap between the metal skeleton and the polyethylene layer 180, and preventing the separation of the protective layer from the metal surface due to the misalignment of the components.

[0058] Compared with the prior art, the metal skeleton of the existing navigation mark and the polyethylene layer 180 are only simply assembled by sleeve wrapping, lacking an internal fixing structure, and are prone to relative displacement due to external forces, resulting in a gap between the protective layer and the metal surface. In this solution, through the inward extension design of the connecting plate 170, the fixing nodes are placed inside the structure connection, and at the same time, a multi-hole fastening method is adopted, so that the metal skeleton and the polyethylene layer 180 are locked at multiple points during the assembly process, forming a gapless integral structure.

[0059] Through the above technical solution, the present application realizes the close fit between the metal skeleton and the polyethylene protective layer, avoids the formation of gaps due to insufficient connection stability, effectively blocks the contact between the corrosion medium and the metal surface, and solves the problem of accelerated corrosion of traditional navigation marks due to the separation of the protective layer and the metal layer.

[0060] The present application further proposes that the strengthening members 171 are arranged between both ends of the first pile body 160, the second pile body 150, both ends of the third pile body 140, and the lamp pile base 130.

[0061] Among them, the strengthening member 171 refers to a metal support member arranged at the connection node of the pile body structure, and specifically can be realized by using angle steel, annular steel plate or welded steel beam, and adjacent components are connected by welding or bolt fixing methods. This feature is used to disperse the lateral load generated by the impact of wind and waves, and prevent the connection part from breaking due to stress concentration.

[0062] Specifically, the strengthening members 171 are distributed at the connection between the first pile body 160 and the lamp pile base 130, the connection between the second pile body 150 and the first pile body 160, and the connection between the third pile body 140 and the lamp pile base 130, forming a multi-layer support system. Under the working condition of wind and wave impact, the bending stress generated between the pile body column 120 and the base is transmitted to the adjacent structure through the strengthening member 171, so that the load is evenly distributed along the longitudinal direction of the pile body. For example, the annular strengthening plate arranged between the third pile body 140 and the base can restrict the lateral displacement of the bottom end of the column, and avoid the generation of micro-cracks between the metal layer and the polyethylene layer 180 in this area due to long-term vibration.

[0063] Compared with the prior art, traditional lamp posts rely solely on the metal wall thickness of the upright column itself to resist wind and wave loads, and no strengthening structure is provided at key joints. When encountering strong winds and waves, plastic deformation is likely to occur at the joints of the upright columns, resulting in a gap being formed between the outer polyethylene protective layer and the metal matrix. In this solution, however, strengthening members 171 are provided at both ends of the upright column and at the connection of the base, forming an overall stress-bearing framework, increasing the structural stiffness by about 1.8 times, and effectively suppressing the deformation at the connection part.

[0064] Through the above technical solution, the present application solves the problem that the connection part of the lamp post structure is prone to deformation under long-term wind and wave impacts. By providing the strengthening members 171, a rigid connection system is formed between each pile body upright column 120 and the base, suppressing the micro-deformation of the metal matrix, ensuring that the polyethylene protective layer and the metal layer are in a gapless fitting state, and thus delaying the corrosion process. The present application further proposes that the first external climbing ladder 131 is installed on the outside of the lamp post base 130; the second external climbing ladder 141 is installed on the outside of the first pile body 160, and the positions of the first external climbing ladder 131 and the second external climbing ladder 141 correspond to each other; the circular guardrail 142 is arranged around the second external climbing ladder 141 or the first external climbing ladder 131.

[0065] Among them, the first external climbing ladder 131 refers to a vertical climbing device installed on the outside of the lamp post base 130, which can be fixed to the outer surface of the base by welding or bolts using a metal frame, and is used to provide a starting climbing path for maintenance personnel from the ground to the pile body upright column 120. The second external climbing ladder 141 refers to a vertical climbing device installed on the outside of the first pile body 160, which can adopt a segmented structure and be fixed to the column surface through a connecting piece 118, and its installation height is in upper and lower connection with the first external climbing ladder 131 to ensure the continuity of the climbing path. The circular guardrail 142 refers to an annular protective structure arranged around the climbing ladder, which can be fixedly connected to the pile body surface through a prefabricated annular frame, and its surrounding range covers the areas on both sides and behind the climbing ladder, forming a physical barrier to prevent personnel from falling.

[0066] Specifically, the first external climbing ladder 131 and the second external climbing ladder 141 form a coherent climbing path through corresponding positions, and maintenance personnel can complete the transfer of different height segments without lateral movement during the climbing process, thus reducing the risk of stepping empty caused by path misalignment. The circular guardrail 142 adopts an encircling layout, and its annular structure can provide multi-directional protection for the climbing ladder. For example, during the climbing process, it restricts the outward tilting amplitude of the personnel's body and prevents lateral slipping. The coordinated setting of the climbing ladder and the guardrail improves both the vertical continuity of the climbing path and the horizontal protection ability.

[0067] Compared with the prior art, the existing external climbing facilities for navigation aids usually adopt a single ladder and lack a protective structure. Maintenance personnel need to climb on an open ladder section without guardrails, which poses a risk of falling. This solution ensures the continuity of the path by setting up upper and lower corresponding external ladders, and constructs a three-dimensional protective space through an enclosed guardrail, significantly enhancing safety while maintaining the climbing function.

[0068] Through the above technical solution, this application realizes the continuous connection and all-round protection of the external climbing path of the light pile, effectively reducing the risk of falling of maintenance personnel during climbing due to path interruption or lack of protection, and ensuring the safety of high-altitude operations.

[0069] This application further proposes a light pile 100 with wave resistance and corrosion resistance, which includes a maintenance platform 151, a maintenance guardrail 152, a support member 153, and a maintenance door 154. The maintenance platform 151 is arranged on the second pile body 150, and an external ladder opening is provided on this platform, and the position of the external ladder opening corresponds to the second external ladder 141. The maintenance guardrail 152 is fixed to the edge of the maintenance platform 151, and the support member 153 is connected between the maintenance platform 151 and the maintenance guardrail 152 to provide support. The maintenance door 154 is installed on the surface of the second pile body 150 and is communicated with the internal space of the pile body.

[0070] Among them, the maintenance platform 151 refers to a planar structure used to carry the operation area of maintenance personnel. Specifically, it can be realized by welding metal plates and covering a polyethylene protective layer. It is arranged on the outside of the second pile body 150 to facilitate maintenance personnel to directly reach the target position. The external ladder opening refers to an opening provided on the maintenance platform 151 for the external ladder to pass through. Specifically, it can be realized by a rectangular cutting opening structure, and the edge of the opening is sealed by polyethylene rotational molding coating, so that there is no gap between the external ladder and the platform. The maintenance guardrail 152 refers to a protective structure arranged around the edge of the maintenance platform 151. Specifically, it can be made of a composite of a tubular metal frame and a polyethylene coating layer, and forms a stable connection with the platform through the support member 153 to enhance the impact resistance. The support member 153 refers to a rigid member connecting the maintenance platform 151 and the maintenance guardrail 152. Specifically, it can be realized by welding triangular steel plates to the bottom of the platform and the side wall of the guardrail, and reducing the risk of platform deformation by dispersing the load. The maintenance door 154 refers to a passage door for entering the internal part of the pile body. Specifically, it can be realized by a polyethylene door panel structure integrally formed with the pile body column 120, and the edge of the door panel forms a gapless connection with the pile body column 120 through rotational molding technology, avoiding the corrosion hidden danger caused by traditional bolt connection.

[0071] Specifically, the maintenance platform 151 corresponds to the position of the second external climbing ladder 141 through the external climbing ladder opening, enabling maintenance personnel to directly reach the maintenance area along the external climbing ladder without disassembling the external protective layer, thus avoiding the damage to the sealing structure caused by disassembling the outer shell during traditional maintenance. The maintenance guardrail 152 and the support member 153 form a composite support system, reducing the platform load-bearing through the mechanical dispersion of the triangular support member 153 and preventing accidental falls of personnel. The maintenance door 154 adopts an integral forming process with the pile body column 120. When the door panel is closed, it forms a continuous and gapless polyethylene protective layer with the column surface, eliminating the gaps generated by welding or bolt fixation at the traditional maintenance opening and blocking the seawater penetration path. After the maintenance door 154 is opened, it can directly enter the interior of the pile body, facilitating the detection and maintenance operations of the internal structure.

[0072] Compared with the prior art, the maintenance passage of the traditional light pile needs to be realized by disassembling the external polyethylene sleeve, resulting in a gap between the protective layer and the metal layer and accelerating metal corrosion. In this solution, by integrating the maintenance platform 151, the external climbing ladder opening and the maintenance door 154 outside the pile body column 120, the maintenance operation does not require damaging the protective layer, maintaining the seamless fit between the polyethylene layer 180 and the metal layer. In addition, the traditional maintenance platform 151 lacks a dedicated support structure, posing a safety hazard. This solution simplifies the maintenance process while ensuring the stability of the platform through the combined design of the support member 153 and the guardrail.

[0073] Through the above technical solutions, this application realizes the maintenance of the integrity of the protective layer during the maintenance process, reducing the corrosion risk of the metal layer caused by gaps. At the same time, the corresponding setting of the maintenance platform 151 and the external climbing ladder improves the maintenance efficiency, the combined structure of the support member 153 and the guardrail enhances the operation safety, and the integral forming design of the maintenance door 154 further blocks the seawater penetration path.

[0074] This application further proposes a maintenance handrail 155 corresponding to the external climbing ladder opening on the second pile body 150. Among them, the maintenance handrail 155 refers to a rod-shaped support structure arranged on the second pile body 150, which can be specifically realized by bending a metal pipe and then welding and fixing it, and is used to provide a grasping support point for maintenance personnel when climbing.

[0075] Among them, the setting corresponding to the external climbing ladder opening means that the installation position of the handrail forms a spatial corresponding relationship with the external climbing ladder opening, which can be specifically realized by aligning the embedded installation base with the center line of the climbing ladder opening, ensuring that the handrail covers the key area of the personnel access path.

[0076] Specifically, the maintenance handrail 155 extends along the vertical direction of the second pile body 150, and its lower end maintains a predetermined distance from the upper edge of the external ladder opening. When maintenance personnel enter and exit the maintenance platform 151 through the external ladder opening, both hands can alternately hold the handrail to form a three-point support. A circular reinforcement ring is welded to the bottom of the handrail, forming a continuous contact surface with the surface of the column to avoid structural deformation caused by local stress concentration.

[0077] Compared with the prior art, traditional lamp posts only have a simple guardrail around the external ladder opening, lacking a vertical auxiliary support structure. When maintenance personnel climb, they have to rely entirely on the crossbars of the ladder, which poses a risk of hand slipping. This solution adds a special handrail at the key nodes of the operation moving line at the ladder opening to form a three-dimensional protection system.

[0078] Through the above technical solution, this application enables maintenance personnel to obtain stable alternating handgrip support during climbing, reducing the risk of falling caused by single-point instability. The vertical layout of the handrail matches the direction of personnel movement, effectively shortening the emergency response distance in case of emergencies and ensuring the safety of high-altitude operations.

[0079] This application further proposes that the internal ladder 172 is arranged inside the pile body column 120, the top platform 110, and the lamp post base 130. A plurality of connecting platforms are sequentially arranged between the pile body column 120, the top platform 110, and the lamp post base 130. A plurality of internal ladder openings 172 are respectively arranged on the plurality of connecting platforms, and the internal ladder 172 and the internal ladder openings 172 are correspondingly arranged.

[0080] Among them, the internal ladder 172 refers to a climbing device arranged longitudinally inside the lamp post. Specifically, it can be realized by welding metal rods or molding composite materials. Its installation position is completely within the coverage range of the polyethylene layer 180, avoiding contact with external corrosive media.

[0081] Among them, the connecting platform refers to an operating plane distributed at intervals along the height direction of the lamp post. Specifically, it can be made of steel plate stamping parts or fiberglass composite materials, and is fixed inside the pile body by bolt connection or integral molding to form a longitudinal support system and bear the maintenance operation load.

[0082] Among them, the internal ladder opening 172 refers to a vertical passage opening arranged on the connecting platform. Specifically, it can be processed in the form of a rectangular or circular hole, and its position is aligned with the axis of the internal ladder 172 to ensure that maintenance personnel can move longitudinally in the enclosed space.

[0083] Specifically, the internal ladder 172 is fixed to the internal steel framework of the pile body by welding or embedding, and extends along the inner wall surfaces of the pile body column 120, the top platform 110 and the light pile base 130. The connecting platforms are distributed at different heights of the pile body at equal or unequal intervals, and each platform is provided with an opening corresponding to the position of the internal ladder 172, forming a continuous vertical passage. During maintenance operations, the staff can achieve safe transfer between different height levels through the internal ladder 172 within the enclosed space completely wrapped by the polyethylene layer 180, and at the same time use the connecting platforms for equipment maintenance operations. This structure fully integrates the maintenance passage inside the protective layer, avoiding the risk of seal failure caused by the need for traditional external ladders to penetrate the protective layer.

[0084] Compared with the prior art, traditional light piles mostly adopt external ladder structures, and their metal components are directly exposed to the marine atmospheric environment. Even with protective layers, the coating wear due to frequent use accelerates corrosion. However, in this solution, through the built-in ladder system, the stress structure is completely isolated from the corrosive environment, and at the same time, the connecting platforms are used to form a closed maintenance passage, which not only ensures the integrity of the protective layer but also avoids damage to the protective structure during maintenance operations.

[0085] Through the above technical solution, the present application realizes the integrated design of the internal maintenance passage and the anti-corrosion structure of the light pile, provides a safe and reliable maintenance path on the premise of maintaining the complete seal of the polyethylene layer 180, effectively reduces the risk of moisture penetration and corrosion of the internal structure, and at the same time reduces the physical damage to the protective layer during maintenance operations, extending the overall service life of the light pile.

[0086] The present application further proposes a light pile structure including a support platform 111, a support guardrail 112, a top guardrail 113, a light pile hatch cover 114, a lightning rod 115 and a navigation light 116. The support platform 111 is arranged above the top platform 110, and the support guardrail 112 is connected to the support platform 111 to form a rigid framework. The top guardrail 113 wraps the support guardrail 112 and is manufactured by the linear low-density polyethylene rotational molding process. The light pile hatch cover 114 is installed on the support platform 111 and is in communication with the inside of the pile body column 120, and the lightning rod 115 and the navigation light 116 are integrated on the support platform 111.

[0087] Among them, the support platform 111 refers to a flat structure located above the top platform 110, which can be specifically realized by covering a polyethylene layer 180 on the surface of a metal substrate, and is used to provide an installation foundation for the top equipment. The support guardrail 112 refers to a vertical fence arranged around the edge of the support platform 111, which can be specifically realized by welding steel pipes and then covering them with a polyethylene layer 180, and together with the support platform 111 forms an anti-deformation framework. The top guardrail 113 refers to a protective structure covering the outer layer of the support guardrail 112, which can be specifically realized by successively forming linear low-density polyethylene materials through a rotational molding die to eliminate joints and block the penetration of corrosive media. The lamp post hatch cover 114 refers to an openable cover plate covering the opening of the support platform 111, which can be specifically realized by hinge connection and cooperation with a sealing strip, and while providing a maintenance passage, it maintains the sealing performance. The lightning rod 115 refers to a metal conductor installed at the edge of the support platform 111, which can be specifically made of stainless steel and fixed through a flange to form a lightning protection and grounding path. The navigation light 116 refers to a navigation light source arranged in the middle of the support platform 111, which can be specifically fixed on a pre-set mounting seat by bolts to realize the azimuth indication function.

[0088] Specifically, the support platform 111 is fixed on the surface of the top platform 110 by welding or bolt connection to form a load-bearing foundation for equipment installation. The lower ends of the columns of the support guardrail 112 are welded to the edge of the support platform 111, and the upper ends form a closed ring structure through transverse connecting rods to enhance the top's anti-lateral load capacity. The top guardrail 113 is formed by covering the support guardrail 112 through a rotational molding process to form a continuous surface and eliminate exposed points of the metal structure. The lamp post hatch cover 114 is arranged at the central position of the support platform 111 and realizes the opening and closing operation through hinge connection, and the internal passage extends to the cavity of the pile body column 120. The installation position of the lightning rod is arranged outside the support guardrail 112 and is connected to the internal grounding device of the pile body through a wire. The mounting seat of the navigation light 116 is fixed on the support platform 111 through a support column 117 and a connecting piece 118, so that the lamp is located at the center of the top space.

[0089] Compared with the prior art, most of the existing lamp posts use metal guardrails installed dispersedly at the top, and there are seams between components, resulting in corrosion risks. This solution realizes seamless covering through rotational molding of the top guardrail 113, avoiding seawater from seeping in through the seams and corroding the internal metal structure. In the prior art, the lightning rod 115 and the navigation light 116 are usually installed separately, occupying a large space and having an interference risk. This solution integrates the installation positions through the support platform 111 and optimizes the layout in a limited space. The inspection openings of traditional lamp posts use simple cover plate structures, and it is easy to have sealing failure after long-term use. This solution improves the waterproof performance of the hatch cover through hinge connection and cooperation with a sealing strip.

[0090] Through the above technical solution, the present application solves the problem of insufficient anti-wave and anti-wind ability of the top structure. The frame structure formed by the support platform 111 and the guardrail effectively disperses the wind load. The rotational molding process of the top guardrail 113 eliminates the risk of seam corrosion of traditional metal guardrails and extends the service life of the top components. The integrated installation of the lightning rod 115 and the navigation light 116 reduces the external protruding components and decreases the probability of the equipment being damaged by external forces. The sealing design of the lamp post hatch 114 blocks the infiltration of seawater while providing a maintenance passage, avoiding the corrosion of the internal structure.

[0091] The present application further proposes that the installation position of the lightning rod is located on the side of the support guardrail 112 away from the pile body column 120, and the installation position of the navigation light is located on the support platform 111. The installation position of the navigation light includes a plurality of support columns 117 sequentially arranged on the support platform 111, a plurality of connectors 118 arranged corresponding to the support columns 117 one by one. One end of the connector 118 is connected to the support column 117, and the other end is connected to the support guardrail 112. The mounting seat of the navigation light 116 is arranged between the plurality of connectors 118, and the top handrail is arranged on the support platform 111.

[0092] Among them, the installation position of the lightning rod refers to a dedicated structural position for fixing the lightning rod 115, which can be specifically realized by embedded bolts or welded bases. Its setting on the outside of the support guardrail 112 can reduce the direct contact between metal components and the salt spray environment. The support column 117 refers to a load-bearing member vertically fixed on the support platform 111, which can be specifically realized by a steel pipe or a composite material column body, and is used to form a basic support framework for installing the navigation light 116. The connector 118 refers to a transition member connecting the support column 117 and the support guardrail 112, which can be specifically realized by an L-shaped metal angle or a U-shaped buckle, and forms a closed-loop stress structure through two-way connection. The mounting seat of the navigation light 116 refers to the main installation platform for carrying the navigation light 116, which can be specifically realized by a grid-shaped metal frame or an annular bracket. Its setting between the connectors 118 can form a three-dimensional space constraint. The top handrail refers to a protective member surrounding the edge of the support platform 111, which can be specifically realized by a rotationally molded polyethylene pipe. The integrated design with the support platform 111 can avoid the corrosion risk of the independent support member 153.

[0093] Specifically, the lightning rod installation position is independently set outside the support guardrail 112, so that the lightning rod 115 is physically isolated from the lamp post main body, effectively blocking the continuous exposure of the metal conduction path. The installation position of the navigation light adopts an array arrangement of support columns 117, and forms a two-way connection with the support guardrail 112 through the connecting piece 118. When impacted by wind and waves, the impact force is transmitted from the support column 117 to the connecting piece 118, and then dispersed by the connecting piece 118 to the support guardrail 112 and the pile body column 120 to form a three-dimensional load transfer network. The installation seat of the navigation light 116 is constrained between multiple connecting pieces 118, and its six degrees of freedom are restricted by adjacent components to avoid displacement loosening. The top handrail is directly fixed to the edge of the support platform 111, providing personnel safety protection while realizing an installation method without additional support by using the structural strength of the platform itself.

[0094] Compared with the prior art, the traditional navigation light 116 is installed using a single-column support structure, and there is a risk of stress concentration relying only on bolts for fixation. Moreover, the direct connection between the lightning rod 115 and the main structure is likely to form a corrosion channel. In this solution, through the composite connection structure of the support column 117 and the connecting piece 118, the installation position of the navigation light forms a multi-node distributed support. The independent setting of the lightning rod installation position cuts off the conduction path of metal corrosion, and the integrated design of the top handrail and the support platform 111 eliminates the corrosion hidden danger of the traditional independent guardrail.

[0095] Through the above technical solutions, the present application realizes the three-dimensional stable fixation of the installation seat of the navigation light 116 in a wind and wave environment, effectively suppressing the relative displacement between the connecting piece 118 and the support column 117, and reducing the risk of fatigue fracture of metal components caused by stress concentration. The independent layout of the lightning rod installation position blocks the diffusion path of salt spray corrosion and extends the service life of the lightning protection system. The integrated structure of the top handrail and the support platform 111 ensures the maintenance safety while avoiding secondary maintenance operations caused by corrosion of the traditional independent guardrail.

[0096] See Figures 8 - 10 , the present application further proposes a lamp post manufacturing process, including bending the steel plate through steel welding processing to produce the top platform, the lamp post vertical cone and the column pile body; performing galvanizing and heavy anti-corrosion process treatments; making the polyethylene layer integrally formed with the metal components through linear low-density polyethylene rotational molding process; reserving the installation holes for the lightning rod and the lamp post hatch cover; reserving the ladder installation openings on the side of the lower lamp post vertical cone and the column pile body and installing the external ladder; installing the inspection platform on the middle column pile body; and integrally connecting the internal ladders to each component after installation.

[0097] Among them, the steel welding processing refers to using welding technology to bend and splice the steel plate to form the main structure of the lamp post, which can be specifically realized by carbon dioxide gas shielded welding or arc welding to ensure the structural strength and shape accuracy.

[0098] Among them, the galvanizing and heavy anti-corrosion process refers to forming a zinc layer on the metal surface and coating with epoxy resin or polyurethane paint, which can be specifically achieved by hot-dip galvanizing combined with a multi-layer spraying process to enhance the anti-corrosion ability of the matrix.

[0099] Among them, the rotational molding of linear low-density polyethylene refers to heating polyethylene powder and evenly attaching it to the metal surface, which can be specifically achieved by a rotating mold combined with a multi-stage temperature control device to make the polyethylene layer bond to the matrix without gaps.

[0100] Among them, the ladder installation opening refers to a rectangular or circular opening reserved on the outer wall, which can be specifically achieved by laser cutting or stamping processes to facilitate the bolt fixation or welding installation of the external ladder.

[0101] Among them, the overall connection refers to assembling each prefabricated component by flanging or welding, which can be specifically achieved by high-strength bolts combined with sealant to ensure the structural stability and tightness.

[0102] Specifically, after the metal matrix is bent and welded to form a framework, a double protective layer is formed through galvanizing and heavy anti-corrosion treatment. Subsequently, during the rotational molding process, the polyethylene powder melts and coats the metal components at a controlled temperature to achieve a seamless combination of the polyethylene layer and the matrix. The ladder installation opening is processed synchronously during the component forming stage to avoid damage to the anti-corrosion layer caused by subsequent cutting. The maintenance platform is fixed to the middle pile body by welding or bolts. After the internal ladder is installed, the overall connection process is used to achieve the alignment and assembly between components, eliminating the joint problems caused by traditional segmented assembly.

[0103] Compared with the prior art, the traditional process uses a prefabricated polyethylene sleeve to coat the metal matrix, resulting in an assembly gap between the sleeve and the matrix, which allows corrosive media to penetrate. However, in this process, the rotational molding makes the polyethylene layer directly fuse with the metal surface, eliminating the gap at the root. At the same time, the synergistic effect of galvanizing and rotational molding processes forms a triple protection system of metal-zinc layer-polyethylene, which significantly improves the corrosion resistance performance compared with a single coating or mechanical coating structure.

[0104] Through the above technical solutions, this application solves the problem of accelerated corrosion caused by poor fixation of the polyethylene layer of traditional metal navigation buoys. The rotational molding process makes the polyethylene layer form a gapless combination with the metal matrix, avoiding the penetration of moisture and salt spray; galvanizing and heavy anti-corrosion treatment provide active protection for the metal matrix, reducing the risk of electrochemical corrosion; the overall connection process reduces the structural joints and prevents the spread of local corrosion. In addition, the design of the reserved installation opening and the maintenance platform reduces the damage to the anti-corrosion layer during later maintenance and extends the service life of the light pile.

[0105] The present application further proposes a rotational molding process for linear low-density polyethylene of the top platform, two lamp post cones, and three column piles using a rotational molding device 200. The rotational molding device 200 includes a rotational molding device body 210 with an installation space inside and protruding pile body fixing parts 211 at both ends; a detachable pile body roller 220 is arranged on the rotational molding device body 210; a plurality of rotational molding connectors 230 are arranged between the rotational molding device body 210 and the pile body fixing parts 211 and protrude outwards; a heating component 240 is arranged in the installation space, including a plurality of heating rods 241 arranged axially; a plurality of temperature detection components are distributed at intervals along the axis of the rotational molding connectors 230.

[0106] Among them, the pile body roller 220 refers to a supporting component used to carry and drive the rotation of the lamp post component, which can be specifically realized by a metal roller with a bearing structure. Its detachable design facilitates adapting to lamp post components of different sizes. The rotational molding connector 230 refers to a conduction component connecting the rotational molding device body 210 and the pile body fixing parts 211, which can be specifically realized by a hollow steel pipe structure. Its internal channel is used to guide the flow of polyethylene material. The axially arranged heating rods 241 included in the heating component 240 refer to independent heating units arranged at intervals along the axial direction of the lamp post. For example, resistive heating rods 241 are arranged in segments to achieve independent temperature control in different regions. The temperature detection component refers to a temperature measuring element embedded in the surface of the rotational molding connector 230, such as a thermocouple or a thermal resistance sensor, used to monitor the molten state of the material in real time.

[0107] Specifically, the rotational molding device body 210 axially clamps the lamp post component through the pile body fixing parts 211 at both ends to ensure that the metal matrix maintains a fixed posture during the molding process. The pile body roller 220 drives the component to rotate at a constant speed, so that the molten polyethylene material evenly covers the metal surface under the action of centrifugal force. The rotational molding connector 230 penetrates the fixing part and the body, and its internal channel allows the material to flow to the connection part of the lamp post structure to avoid incomplete local coverage. The axially arranged heating rods 241 in the heating component 240 heat in different regions. For example, a higher power is set in the region close to the pile body fixing parts 211 to compensate for heat loss. A group of sensors is set at intervals of a set distance along the rotational molding connector 230 for the temperature detection component. For example, a temperature measuring point is arranged every 50 cm, and the temperature data is fed back to the control system in real time to dynamically adjust the power of the heating rods 241 in the corresponding region, ensuring that the linear low-density polyethylene is completely melted on the complex surface and forms a gapless bond with the metal matrix.

[0108] Compared with the prior art, the traditional process uses static sleeve encapsulation or segmented coating methods, which cannot eliminate the gap between the metal matrix and the polyethylene layer. In this solution, by combining rotary heating with dynamic temperature control, the polyethylene material flows freely along the metal surface in a molten state to fill, eliminating the voids generated by material shrinkage or uneven coverage in the traditional process. The segmented arrangement of the axial heating rod 241 can precisely match the heat dissipation characteristics of different parts of the lamp post compared with the traditional overall heating method. For example, for the connecting plate area with sudden cross-section change, the heating intensity is enhanced to avoid local non-melting defects. The temperature detection component embedded in the rotational molding connector 230 can directly monitor the actual temperature at the material-metal interface compared with external temperature measurement devices. For example, increasing the sensor density at the bending part of the connecting plate can effectively improve the temperature control accuracy.

[0109] Through the above technical solutions, this application realizes the gapless integrated molding of the lamp post metal matrix and the polyethylene layer, solving the problem of accelerated corrosion caused by the loose combination of the protective layer and the matrix in the traditional process. The combined control method of axial segmented heating and multi-point temperature monitoring ensures the uniform coverage of the linear low-density polyethylene material on the surface of the complex lamp post structure, avoiding material non-melting or excessive decomposition caused by local temperature deviation. The cooperative design of the detachable pile body roller 220 and the modular rotational molding connector 230 enables the same device to adapt to lamp post components of different sizes, improving the versatility of the production process.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An anti-wave and corrosion-resistant lamp post (100), characterized in that, Comprising: A pile body column (120); The pile body column (120) comprises: A first pile body (160) which is connected to the lamp pile base (130); a second pile body (150) which is connected to the first pile body (160); a third pile body (140) which is arranged between the second pile body (150) and the lamp pile base (130); A top platform (110) which is arranged above the pile body column (120); A lamp pile base (130) which is arranged below the pile body column (120); A polyethylene layer (180) which is attached to the outer sides of the pile body column (120), the top platform (110), and the lamp pile base (130); Connecting plates (170) which are arranged at both ends of the first pile body (160), both ends of the second pile body (150), both ends of the third pile body (140), and both ends of the lamp pile base (130), and the connecting plates (170) all extend inwards; multiple mounting positions for connectors (118) are provided on the connecting plates (170); Wherein, the polyethylene layer (180), the pile body column (120), the top platform (110), and the lamp pile base (130) are integrally formed, and there is no gap between the polyethylene layer (180), the pile body column (120), the top platform (110), and the lamp pile base (130).

2. The wave-resistant and corrosion-resistant lamp post (100) according to claim 1, characterized in that, Further comprising: Reinforcing members (171) which are arranged between both ends of the first pile body (160), the second pile body (150), both ends of the third pile body (140), and the lamp pile base (130).

3. The wave-resistant and corrosion-resistant lamp post (100) according to claim 1, characterized in that, Further comprising: A first external ladder (131) which is arranged on the outer side of the lamp pile base (130); A second external ladder (141) which is arranged on the outer side of the first pile body (160), and the first external ladder (131) and the second external ladder (141) are arranged corresponding to each other; A circular guardrail (142) which surrounds and is arranged on the second external ladder (141) and the first external ladder (131).

4. The wave-resistant and corrosion-resistant lamp post (100) according to claim 3, characterized in that, Further comprising: An inspection platform (151) which is arranged on the second pile body (150), and an external ladder opening is provided on the inspection platform (151), and the external ladder opening and the second external ladder (141) are arranged corresponding to each other; An inspection guardrail (152); the inspection guardrail (152) is arranged on the inspection platform (151); Supporting members (153) which are arranged between the inspection platform (151) and the inspection guardrail (152); An inspection door (154) which is arranged on the second pile body (150), and the inspection door (154) communicates with the interior of the second pile body (150).

5. The wave-resistant and corrosion-resistant lamp post (100) according to claim 4, characterized in that, Further comprising: Maintenance handrail (155), the maintenance handrail (155) is provided on the second pile body (150), and the maintenance handrail (155) is arranged corresponding to the external climbing ladder opening.

6. The wave-resistant and corrosion-resistant lamp post (100) according to claim 1, characterized in that, It further includes: Internal climbing ladder (172), the internal climbing ladder (172) is provided inside the pile body column (120), the top platform (110) and the lamp post base (130); Multiple connecting platforms, the connecting platforms are sequentially arranged between the pile body column (120), the top platform (110) and the lamp post base (130); Multiple internal climbing ladder (172) openings, the multiple internal climbing ladder (172) openings are respectively arranged on the multiple connecting platforms one by one, and the internal climbing ladder (172) and the internal climbing ladder (172) opening are arranged corresponding to each other.

7. The wave-resistant and corrosion-resistant lamp post (100) according to any one of claims 1-6, characterized in that, It further includes: Support platform (111), the support platform (111) is provided on the top platform (110); Support guardrail (112), the support guardrail (112) is connected to the support platform (111); Top guardrail (113), the top guardrail (113) wraps the support guardrail (112), and the top guardrail (113) is formed by rotational molding of linear low density polyethylene; Lamp post hatch (114), the lamp post hatch (114) is provided on the support platform (111), and the lamp post hatch (114) communicates with the inside of the pile body column (120); Lightning rod (115), the lightning rod (115) is provided on the support platform (111); Navigation light (116), the navigation light (116) is provided on the support platform (111).

8. The wave-resistant and corrosion-resistant light pile (100) according to claim 7, characterized in that, It further includes: Lightning rod installation position, the lightning rod installation position is provided on the side of the support guardrail (112) away from the pile body column (120); Navigation light installation position, the navigation light installation position is provided on the support platform (111), and the navigation light installation position includes: Multiple support columns (117), the support columns (117) are sequentially arranged on the support platform (111); Multiple connecting pieces (118), the multiple connecting pieces (118) are arranged corresponding to the support columns (117) one by one, and one end of the connecting piece (118) is connected to the support column (117), and the opposite end is connected to the support guardrail (112); Navigation light (116) mounting seat, the navigation light (116) is installed between the multiple connecting pieces (118); Top handrail, the top handrail is provided on the support platform (111).

9. A preparation process for a light pile resistant to wind and waves and corrosion, characterized in that, The lamp post manufacturing process is used to manufacture the wave-resistant and corrosion-resistant lamp post according to any one of claims 1-8, and the lamp post manufacturing process includes: S100: By using steel welding processing, the steel plate is bent to produce a top platform, two lamp post vertical cones and three column pile bodies; S200: Perform galvanizing and heavy anti-corrosion processes on the top platform, two lamp post vertical cones and three column pile bodies; S300: Perform rotational molding of linear low density polyethylene on the top platform, two lamp post vertical cones and three column pile bodies; S400: Reserve lightning rod installation holes and lamp post hatches on the top platform; S500: Reserve a climbing ladder installation opening on the side of the vertical cone of the lower lamp post, and install the external climbing ladder on the lower lamp post: S600: Reserve a climbing ladder installation opening on the side of the lower column pile body, install the external climbing ladder on the lower lamp post, and install a maintenance platform on the middle column pile body; S700: Install the internal climbing ladders on the top platform, the two lamp post vertical cones, and the three column pile bodies respectively, and then connect the top platform, the two lamp post vertical cones, and the three column pile bodies in sequence.

10. The preparation process of the wave-resistant and corrosion-resistant lamp post according to claim 9, characterized in that, In the S300, the linear low-density polyethylene rotational molding process is realized for the top platform, the two lamp post vertical cones, and the three column pile bodies through the rotational molding device (200). The rotational molding device (200) includes: A rotational molding device body (210), an installation space is provided inside the rotational molding device body (210), and pile body fixing parts (211) protruding are provided at both ends of the rotational molding device body (210); Pile body rollers (220), the pile body rollers (220) are detachably arranged on the rotational molding device body (210); A plurality of rotational molding connecting parts (230), the plurality of rotational molding connecting parts (230) are arranged between the rotational molding device body (210) and the pile body fixing parts (211), and the rotational molding connecting parts (230) protrude from the pile body fixing parts (211); A heating component (240), the heating component (240) is arranged in the installation space, and a plurality of heating rods (241) arranged axially are provided inside the heating component (240); A plurality of temperature detection components, the temperature detection components are arranged on the rotational molding connecting parts (230), and each of the rotational molding connecting parts (230) is arranged at intervals in sequence along the axis.

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