A method of manufacturing a floating mooring column

Abstract

The application discloses a kind of production methods of floating mooring column, comprising the following steps: making floating mooring cylinder;Floating mooring cylinder and prefabricated balanced mooring cable assembly are assembled to form floating mooring column;Make the cylinder with accommodating cavity;With the sealing hole of pressing, the closure cover plate is temporarily capped on the top cover plate, and then the first via hole is capped, and the sealing test of cylinder is carried out through the sealing hole of pressing;If the sealing of cylinder meets the requirements, the closure cover plate is disassembled and filled with prefabricated foam body in accommodating cavity;The closure cover plate is capped and fixed on the top cover plate, and the sealing hole of pressing is welded.The production method of the floating mooring column of the application fills the prefabricated foam body in the cavity of floating mooring cylinder, even if the shell of floating cylinder is perforated or broken, under the action of prefabricated foam body, can avoid the total weight of water in the floating cylinder after permeation exceeds the buoyancy of floating cylinder, and lead to the sinking of floating mooring column into the bottom of water.

Description

Technical Field

[0001] This invention relates to the field of water transport engineering equipment and facilities technology, specifically to a method for manufacturing a floating mooring bollard. Background Technology

[0002] Floating mooring facilities are currently the most common type of mooring facility in locks. Because they can automatically adapt to the rise and fall of water levels, they greatly facilitate the mooring of ships passing through the locks.

[0003] Currently, in the fabrication of floating mooring bollards for waterway engineering locks, steel plates are typically rolled and welded into buoys. After welding, the buoys undergo pressure testing to ensure airtightness. During use, various reasons can lead to water leakage into the hollow buoys. If the total weight of the floating mooring bollard exceeds the buoyancy of the buoy, the floating mooring system may sink to the bottom. This can easily cause accidents such as ship detachment from mooring lines, broken mooring lines, deformation and breakage of the mooring bollard, or even ship capsizing, resulting in casualties, disrupting lock operation, and posing safety hazards.

[0004] In existing technologies, because floating mooring bollards are constantly submerged in water, the operating environment is rich in moisture. The top cover of the floating mooring bollard is usually bolted, allowing moisture to easily penetrate and causing corrosion of the inner wall surface. Therefore, the manufacturing process of floating mooring bollards requires high levels of corrosion protection for the inner wall surface, and the anti-corrosion construction process is complex. Currently, floating mooring bollards typically have a manhole at the top, and a ladder is installed inside the cavity. Workers need to periodically use the manhole and ladder to perform anti-corrosion maintenance inside the floating mooring bollard.

[0005] Therefore, it is necessary to propose a method for manufacturing floating bollards to solve or at least alleviate the aforementioned defects. Summary of the Invention

[0006] The main objective of this invention is to provide a method for manufacturing a floating bollard, which aims to solve the technical problem that existing methods for manufacturing floating bollards involve hollow buoys, which are prone to water seepage and whose total weight exceeds the buoyancy of the hollow buoy, causing the floating bollard to sink to the bottom of the water and posing a safety hazard.

[0007] To achieve the above objectives, the present invention provides a method for manufacturing a floating mooring bollard, comprising the following steps: manufacturing a floating mooring tube; assembling the floating mooring tube and a prefabricated balancing mooring cable assembly to form a floating mooring bollard; wherein, the step of "manufacturing the floating mooring tube" includes: manufacturing a tube with a accommodating cavity, the stern of the tube having a stern sealing plate, the top of the tube having a top cover plate, and the central axis of the top cover plate having a first through hole communicating with the accommodating cavity; temporarily sealing the top cover plate with a sealing cover plate having a pressure-testing hole to seal the first through hole, and performing a sealing performance test on the tube through the pressure-testing hole; if the sealing performance of the tube is satisfactory... To meet the requirements, the sealing cover is removed and the accommodating cavity is filled with pre-made foam. The steps for filling the pre-made foam are as follows: multiple pre-made foam sector shapes are placed in the accommodating cavity, with the outer wall of the pre-made foam sector shapes fitting against the inner wall of the cylinder. The multiple pre-made foam sector shapes are assembled circumferentially to form a blank cylinder with a central assembly hole. A pre-made foam cylinder is inserted into the central assembly hole of the blank cylinder, so that the pre-made foam cylinder and multiple pre-made foam sector shapes are combined to form a pre-made foam body, which fills the accommodating cavity. The sealing cover is then fixed to the top cover, and the pressure hole is welded to seal it.

[0008] Further, a uniform cross-section cylinder with openings at both ends is fabricated according to a preset elevation; the head of the uniform cross-section cylinder is cut to form a head blank cylinder; the tail of the uniform cross-section cylinder is cut to form a tail blank cylinder; reinforcing ribs are arranged in the middle cylinder between the head blank cylinder and the tail blank cylinder, and multiple reinforcing ribs are arranged axially at intervals, wherein the middle of the reinforcing ribs has a second through hole; the head blank cylinder is processed to form a head formed cylinder; the tail blank cylinder is processed to form a tail formed cylinder; the middle cylinder, the head formed cylinder, and the tail formed cylinder are coaxially arranged, a tail sealing plate is arranged at the end of the tail formed cylinder away from the middle cylinder, and a top cover plate is arranged at the end of the head formed cylinder away from the middle cylinder; a sealing cover plate with a pressure punching hole is temporarily sealed on the top cover plate to seal the first through hole, and the sealing performance of the cylinder is tested through the pressure punching hole; if the sealing performance of the cylinder meets the requirements, pre-fabricated foam is arranged into the accommodating cavity through the first through hole and the second through hole.

[0009] Furthermore, the step "fixing the sealing cover plate to the top cover plate and welding the sealing pressure hole" specifically includes: fixing the sealing cover plate to the top cover plate and pouring polyurethane foam into the accommodating cavity through the pressure hole; after the polyurethane foam has fully expanded, welding the sealing pressure hole.

[0010] Furthermore, pre-made foam is sequentially filled in segments along the direction from the tail to the head of the cylinder. The tail forming cylinder is one filling segment, the middle cylinder is one filling segment between two adjacent reinforcing rib rings, and the head forming cylinder is one filling segment at the tail.

[0011] Furthermore, in the horizontal position, a first pre-made lightweight polystyrene foam is filled into the tail forming cylinder, the shape of which is adapted to the cavity of the tail forming cylinder.

[0012] Furthermore, in the horizontal position, a second prefabricated lightweight polystyrene foam is sequentially filled between two adjacent reinforcing rib rings in the middle cylinder along the direction from the tail to the head of the cylinder. The shape of the second prefabricated lightweight polystyrene foam is adapted to the cavity of the middle cylinder.

[0013] Furthermore, the outer diameter of the pre-formed foam cylinder of the second pre-formed polystyrene lightweight foam is equal to the diameter of the second through hole, and the pre-formed foam cylinders of two adjacent filling segments along the axial direction abut against each other.

[0014] Furthermore, in either a horizontal or vertical configuration, pre-made polyurethane foam is filled into the head forming cylinder, the shape of which is adapted to the cavity of the head forming cylinder.

[0015] Furthermore, according to the preset head height, the top arc segment at the top of the equal cross-section cylinder is cut axially on both sides of the equal cross-section cylinder, forming two top lateral openings symmetrically arranged along the middle section at the top of the equal cross-section cylinder, and then the head blank cylinder is processed at the head of the equal cross-section cylinder.

[0016] Furthermore, based on the preset tail height, the tail arc segments at the tail of the equal cross-section cylinder are cut axially on both sides of the equal cross-section cylinder, forming two lateral tail openings symmetrically arranged along the middle section at the tail of the equal cross-section cylinder, and then the tail blank cylinder is processed at the tail of the equal cross-section cylinder to form the tail blank cylinder.

[0017] Compared with the prior art, the method for manufacturing a floating bollard provided by the present invention has the following beneficial effects:

[0018] The present invention provides a method for manufacturing a floating mooring bollard. After manufacturing a floating mooring tube, the floating mooring tube and a prefabricated balancing mooring cable assembly are assembled to form the floating mooring bollard. After a pressure sealing test is performed on the manufactured tube, prefabricated foam is placed inside the tube, ultimately filling the accommodating cavity. Even if the shell of the pontoon is perforated or ruptured, water is unlikely to enter the pontoon for a short period due to the effect of the prefabricated foam. Furthermore, due to the buoyancy of the prefabricated foam, the method avoids the technical problem of the floating mooring bollard sinking to the bottom and failing to operate with the water level, thus posing a safety hazard, caused by the total weight exceeding the buoyancy of the pontoon after water seepage. Simultaneously, since the floating mooring tube filled with prefabricated foam is completely filled, water is difficult to seep into the tube, requiring less frequent maintenance and saving manpower. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a flowchart of a method for manufacturing a floating bollard according to one embodiment of the present invention;

[0021] Figure 2 This is a partial three-dimensional structural diagram of a floating bollard manufactured according to a method for manufacturing a floating bollard in one embodiment of the present invention.

[0022] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure of the prefabricated foam body in the diagram;

[0023] Figure 4 for Figure 2 A cross-sectional view of the cylindrical body of a floating bollard;

[0024] Figure 5 This is a three-dimensional structural diagram of a floating mooring bollard manufactured according to a method for manufacturing a floating mooring bollard in one embodiment of the present invention.

[0025] Legend:

[0026] 100. Floating mooring tube; 10. Tube body; 11. Stern forming tube; 111. Stern sealing plate; 12. Mid-section tube; 121. Reinforcing rib ring; 1211. Second through hole; 13. Head forming tube; 130. Top cover plate; 131. First through hole; 20. Sealing cover plate; 30. Precast foam body; 40. Floating tube guide device; 200. Balance mooring assembly.

[0027] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0031] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0032] Please refer to the appendix. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This invention provides a method for manufacturing a floating mooring bollard, comprising the following steps: manufacturing a floating mooring cylinder 100; assembling the floating mooring cylinder 100 and a prefabricated balancing mooring cable assembly 200 to form a floating mooring bollard; wherein, the step of "manufacturing the floating mooring cylinder 100" includes: manufacturing a cylinder 10 having a accommodating cavity, the stern of the cylinder 10 having a stern sealing plate 111, the top of the cylinder 10 having a top cover plate 130, the central axis of the top cover plate 130 having a first through hole 131 communicating with the accommodating cavity; temporarily sealing the top cover plate 130 with a sealing cover plate 20 having a pressure testing hole, thereby sealing the first through hole 131, and performing a sealing test on the cylinder 10 through the pressure testing hole; if the cylinder 10... If the sealing performance meets the requirements, the sealing cover plate 20 is removed and pre-made foam body 30 is filled into the accommodating cavity. The steps for filling the pre-made foam body 30 are as follows: multiple pre-made foam sector shapes are placed in the accommodating cavity, with the outer wall surface of the pre-made foam sector shapes fitting against the inner wall surface of the cylinder 10. The multiple pre-made foam sector shapes are assembled circumferentially to form a blank cylinder with a central assembly hole. A pre-made foam cylinder is inserted into the central assembly hole of the blank cylinder, so that the pre-made foam cylinder and the multiple pre-made foam sector shapes are combined to form the pre-made foam body 30, which fills the accommodating cavity. The sealing cover plate 20 is then fixed to the top cover plate 130, and the pressure hole is welded to seal it.

[0033] The present invention provides a method for manufacturing a floating mooring bollard. After manufacturing a floating mooring tube 100, the floating mooring tube 100 and a prefabricated balancing mooring cable assembly 200 are assembled to form the floating mooring bollard. After manufacturing the tube 10 and passing a pressure sealing test, prefabricated foam 30 is arranged inside the tube 10, ultimately filling the accommodating cavity. Even if the shell of the bollard is perforated or ruptured, water is unlikely to enter the bollard in a short time due to the action of the prefabricated foam 30. Furthermore, due to the buoyancy of the prefabricated foam 30, the technical problem of the floating mooring bollard sinking to the bottom and being unable to operate with the rising or falling water level due to the total weight exceeding the buoyancy of the bollard after water seeps into it, thus avoiding safety hazards, is avoided. Simultaneously, because the floating mooring tube filled with prefabricated foam is difficult to leak, it requires no frequent maintenance, saving manpower.

[0034] Preferably, multiple pre-fabricated foam sector shapes are placed within the accommodating cavity, with the outer wall surface of each pre-fabricated foam sector shape fitting against the inner wall surface of the cylinder 10. The multiple pre-fabricated foam sector shapes are then assembled by mutual compression along the circumference to form a blank cylinder with a central assembly hole. Understandably, the pre-fabricated foam body 30 includes a pre-fabricated foam cylinder and multiple pre-fabricated foam sector shapes, and the pre-fabricated foam body 30 is adapted to the accommodating cavity of the cylinder 10. In this invention, by assembling multiple pre-fabricated foam sector shapes by mutual compression along the circumference within the cylinder 10 to form a blank cylinder with a central assembly hole, the pre-fabricated foam sector shapes are easily positioned within the accommodating cavity of the cylinder 10 during the fabrication of the blank cylinder. This facilitates the insertion of the pre-fabricated cylindrical foam body, allowing the filling process of the pre-fabricated foam body 30 to be completed even with a single operator.

[0035] More preferably, to ensure a more secure pre-positioning of the blank cylinder and improve operational convenience, the blank cylinder is preferably axially compressed within the accommodating cavity. Specifically, the blank cylinder is axially compressed within each filling segment.

[0036] Understandably, the number of prefabricated foam sector shapes can be two, three, four, or five, or other quantities, depending on the actual situation.

[0037] Further, a uniform cross-section cylinder with openings at both ends is fabricated according to a preset elevation; the head of the uniform cross-section cylinder is cut to form a head blank cylinder; the tail of the uniform cross-section cylinder is cut to form a tail blank cylinder; reinforcing rib rings 121 are arranged in the middle cylinder 12 between the head blank cylinder and the tail blank cylinder, and multiple reinforcing rib rings 121 are arranged axially at intervals, wherein the middle of the reinforcing rib ring 121 has a second through hole 1211; the head blank cylinder is processed to form a head formed cylinder 13; the tail blank cylinder is processed to form a tail formed cylinder 11; the middle cylinder 12, the head blank cylinder, the tail blank cylinder, the head blank cylinder, the tail blank cylinder, the tail formed cylinder, the tail blank cylinder, the tail blank cylinder, the head blank cylinder, the tail ... The first forming cylinder 13 and the second forming cylinder 11 are coaxially arranged. The tail sealing plate 111 is arranged at the end of the second forming cylinder 11 away from the middle cylinder 12. The top cover plate 130 is arranged at the end of the first forming cylinder 13 away from the middle cylinder 12. The sealing cover plate 20 with a pressure hole is temporarily covered on the top cover plate 130 to cover the first through hole 131. The sealing performance of the cylinder 10 is tested through the pressure hole. If the sealing performance of the cylinder 10 meets the requirements, the pre-made foam body 30 is arranged into the accommodating cavity through the first through hole 131 and the second through hole 1211. Understandably, in this invention, a uniform cross-section cylinder is first formed by rolling and welding steel plates. Then, the head end and tail end of the uniform cross-section cylinder are cut to form a head blank cylinder and a tail blank cylinder, respectively. The head blank cylinder, the middle cylinder 12, and the tail blank cylinder are coaxially arranged and interconnected to form a preliminary processing cylinder. A reinforcing rib ring 121 is fixedly arranged inside the preliminary processing cylinder to improve the strength of the blank cylinder. Finally, a tail sealing plate 111 and a top cover plate 130 are fixedly arranged. Then, a pre-made foam cylinder and a pre-made foam fan-shaped body are conveyed into the accommodating cavity through the first through hole 131 and assembled accordingly.

[0038] Understandably, in this invention, by installing reinforcing ribs 121, not only can the strength of the cylinder 10 be improved, but also, when arranging the pre-made foam 30, the blank cylinder of the pre-made foam 30 can be axially compressed and placed between two axially adjacent reinforcing ribs 121 by the auxiliary effect of the reinforcing ribs 121.

[0039] Further, the step "fixing the sealing cover plate 20 onto the top cover plate 130 and welding the sealing pressure hole" specifically includes: fixing the sealing cover plate 20 onto the top cover plate 130, and pouring polyurethane foam into the accommodating cavity through the pressure hole; after the polyurethane foam has fully expanded, welding the sealing pressure hole. In this invention, by further pouring polyurethane foam, the poured polyurethane foam fills the gap between the prefabricated foam body 30 and the inner wall of the accommodating cavity, improving the density of the filling, further avoiding damage to the lightweight polystyrene foam material during welding, and further preventing water from seeping into the cylinder. In specific implementation, polyurethane foam is poured into the accommodating cavity through the pressure hole in a vertical state.

[0040] Furthermore, pre-made foam 30 is sequentially filled in segments along the tail of the cylinder 10 towards the head. Specifically, the tail forming cylinder 11 is one filling segment, the middle cylinder 12 has one filling segment between two adjacent reinforcing rib rings 121, and the head forming cylinder 13 has one filling segment at its tail. In this invention, by filling in stages sequentially, the filling of the cylinder 10 can be completed by a single person.

[0041] Understandably, the reinforcing ribs 121 in this invention can be two, three, four, or five, or other quantities. In a preferred embodiment of this invention, to improve operational convenience and safety, the number of reinforcing ribs 121 is set to four, with reinforcing ribs 121 respectively provided at both ends of the central cylinder 12. The four reinforcing ribs 121 are evenly spaced along the axial direction, totaling five filling segments.

[0042] Furthermore, in the horizontal position, a first pre-fabricated lightweight polystyrene foam is filled into the tail forming cylinder 11. The shape of the first pre-fabricated lightweight polystyrene foam is adapted to the cavity of the tail forming cylinder 11. Specifically, the first pre-fabricated lightweight polystyrene foam is located inside the tail forming cylinder 11. Multiple pre-fabricated foam fan-shaped bodies of the first pre-fabricated lightweight polystyrene foam are circumferentially extruded and assembled to form a blank cylinder with a central assembly hole. The blank cylinder is axially extruded between the tail sealing plate 111 and the reinforcing rib ring 121 at one end of the middle cylinder 12. Filling the first pre-fabricated lightweight polystyrene foam in the horizontal position can avoid the safety risk of personnel falling and being injured due to the excessive height of the cylinder 10. At the same time, the filling can be completed by a single person through the extrusion setting of the blank cylinder. In a preferred embodiment of the present invention, four prefabricated foam fan-shaped bodies are circumferentially pressed and assembled to form a blank cylinder of a first prefabricated lightweight polystyrene foam body with a central assembly hole. Among them, two are prefabricated foam fan-shaped bodies with flat surfaces, and two are prefabricated foam fan-shaped bodies with curved outer walls. Thus, while ensuring ease of installation, it is easy to make the shape of the first prefabricated lightweight polystyrene foam body fit the cavity of the tail forming cylinder 11.

[0043] In the horizontal position, a second prefabricated lightweight polystyrene foam is sequentially filled between two adjacent reinforcing rib rings 121 within the middle cylinder 12, from the tail end of the cylinder 10 towards the head end. The shape of the second prefabricated lightweight polystyrene foam is adapted to the cavity of the middle cylinder 12. Specifically, the second prefabricated lightweight polystyrene foam is located inside the middle cylinder 12. Multiple prefabricated foam fan-shaped bodies of the second prefabricated lightweight polystyrene foam are circumferentially extruded and assembled to form a blank cylinder with a central assembly hole. The blank cylinder is axially extruded between two adjacent reinforcing rib rings 121 of the middle cylinder 12. Filling the second prefabricated lightweight polystyrene foam in the horizontal position avoids the safety risk of personnel falling and being injured due to the excessive height of the cylinder 10. At the same time, the extrusion setting of the blank cylinder allows for single-person operation to complete the filling. In a preferred embodiment of the present invention, four prefabricated foam fan-shaped bodies are circumferentially pressed and assembled to form a blank cylinder of a second prefabricated lightweight polystyrene foam body with a central assembly hole. The four prefabricated foam fan-shaped bodies have curved outer walls, thereby causing the prefabricated foam fan-shaped bodies of the second prefabricated foam body 30 and the prefabricated foam fan-shaped bodies of the first prefabricated foam body 30 to be staggered and distributed, thereby improving the compactness of the filling.

[0044] Furthermore, in either a horizontal or vertical configuration, pre-made polyurethane foam is filled into the head forming cylinder 13, the shape of which is adapted to the cavity of the head forming cylinder 13. In a preferred embodiment of the invention, four pre-made foam fan-shaped bodies are circumferentially pressed and assembled to form a blank cylinder of pre-made polyurethane foam with a central assembly hole, wherein two of the pre-made foam fan-shaped bodies have flat outer walls and two have curved outer walls; thus, while ensuring ease of installation, it facilitates the adaptation of the shape of the pre-made foam fan-shaped bodies to the cavity of the tail forming cylinder 11.

[0045] Understandably, the first and second prefabricated lightweight polystyrene foam bodies are made of lightweight polystyrene foam material, and the prefabricated polyurethane foam body is made of prefabricated polyurethane foam material. In this invention, the horizontal filling and vertical application ensure safe construction; simultaneously, the prefabricated polyurethane foam at the head has a flame-retardant effect, preventing burn-out during the final welding and sealing of the pressure holes; the use of a large amount of lightweight polystyrene foam material results in a lightweight overall filling, avoiding the technical problem of the floating mooring bollard moving up and down due to increased filling weight.

[0046] Furthermore, in order to improve the compactness of the filling, the outer diameter of the pre-made foam cylinder of the second pre-made polystyrene lightweight foam is equal to the diameter of the second through hole 1211, and the pre-made foam cylinders of two adjacent filling segments along the axial direction abut against each other.

[0047] Furthermore, according to the preset head height, top arc segments are cut axially on both sides of the uniform cross-section cylinder, forming two symmetrically arranged top lateral openings along the middle section at the top of the uniform cross-section cylinder. This forms the head blank cylinder. More preferably, a reinforcing rib ring 121 is provided at one end of the middle cylinder 12 near the head blank cylinder. A top flat side plate is sealed at each top lateral opening position. Both sides of the top flat side plate are sealed to the opening wall of the top lateral opening, and one axial end of the top flat side plate is connected to the reinforcing rib ring near the head cylinder.

[0048] Furthermore, according to the preset tail height, a tail arc segment is cut axially on both sides of the equal cross-section cylinder, forming two symmetrically arranged tail lateral openings along the middle section at the tail of the equal cross-section cylinder. This process then forms the tail blank cylinder. More preferably, a reinforcing rib ring 121 is provided at the head end of the middle cylinder 12 near the tail cylinder. A tail straight side plate is sealed at each tail lateral opening position. Both sides of the tail straight side plate are sealed to the opening wall of the tail lateral opening, and one axial end of the tail straight side plate is connected to the reinforcing rib ring near the tail cylinder.

[0049] Please refer to Figure 2 , Figure 3 and Figure 4 In this invention, a floating mooring bollard is manufactured using the above-described method. The floating mooring bollard includes a floating mooring cylinder 100 and a prefabricated balancing mooring cable assembly 200. The floating mooring cylinder 100 includes a sealing cover plate 20 and a cylinder 10 with a cavity. The cylinder 10 includes a tail forming cylinder 11, a middle cylinder 12, and a head forming cylinder 13 arranged sequentially along the axial direction. The middle cylinder 12, the head forming cylinder 13, and the tail forming cylinder 11 are coaxially arranged. The tail forming cylinder 11 has a tail sealing plate 111 at one end away from the middle cylinder 12, and the head forming cylinder 13 has a top cover plate 130 at one end away from the middle cylinder 12. A first through hole 131 is provided on the central axis of the top cover plate 130. Prefabricated foam 30 is provided in the tail forming cylinder 11, the middle cylinder 12, and the head forming cylinder 13, respectively. The sealing cover plate 20 is detachably provided on the top cover plate 130 to cover the first through hole 131.

[0050] Furthermore, the prefabricated foam body 30 includes prefabricated foam sector-shaped bodies and prefabricated foam cylinders. Multiple prefabricated foam sector-shaped bodies are circumferentially extruded and assembled to form a blank cylinder with a central assembly hole. The prefabricated foam cylinder is inserted into the central assembly hole of the blank cylinder. It can be understood that one prefabricated foam body 30 can be provided inside the cylinder 10, or multiple prefabricated foam bodies 30 can be provided inside the cylinder 10. Specifically, one prefabricated foam body 30 is provided in each segment inside the cylinder 10. In this embodiment, multiple filling segments are sequentially provided in segments along the direction from the tail to the head of the cylinder 10. Among them, the tail forming cylinder 11 is a filling segment, the middle cylinder 12 is a filling segment between two adjacent reinforcing rib rings 121, and the head forming cylinder 13 has a filling segment at the tail. By setting the pre-made foam body 30 to include a pre-made foam sector and a pre-made foam cylinder, it is convenient to fill the corresponding pre-made foam body 30 into the cylinder 10 through the first through hole 131 and the second through hole 1211.

[0051] This invention provides a specific method for manufacturing a floating mooring bollard, comprising the following steps: manufacturing a floating mooring cylinder; assembling the floating mooring cylinder and a prefabricated balancing mooring cable assembly 200 to form a floating mooring bollard; wherein, the step of "manufacturing the floating mooring cylinder" includes: manufacturing a cylinder with a accommodating cavity, performing anti-corrosion construction on the inner wall surface of the cylinder, the stern of the cylinder having a stern sealing plate, the top of the cylinder having a top cover plate, and the central axis of the top cover plate having a first through hole communicating with the accommodating cavity; temporarily sealing the top cover plate with a sealing cover plate having a pressure punching hole, thereby sealing the first through hole, and performing a sealing performance test on the cylinder through the pressure punching hole; if the sealing performance of the cylinder meets the requirements, removing the sealing cover plate and filling the accommodating cavity with prefabricated foam, wherein the step of filling the prefabricated foam is as follows: assembling multiple prefabricated foam fans The pre-formed foam fan-shaped body is placed in the accommodating cavity, with its outer wall surface fitting against the inner wall surface of the cylinder. Multiple pre-formed foam fan-shaped bodies are assembled circumferentially to form a blank cylinder with a central assembly hole. A pre-formed foam cylinder is inserted into the central assembly hole of the blank cylinder, combining with the multiple pre-formed foam fan-shaped bodies to form the pre-foam body, which fills the accommodating cavity. A first pre-formed lightweight polystyrene foam is filled into the tail forming cylinder; a second pre-formed lightweight polystyrene foam is filled into the middle cylinder; and a pre-formed polyurethane foam is filled into the head forming cylinder. The sealing cover is welded and fixed to the top cover, and polyurethane foam is poured into the accommodating cavity through the pressure hole. After the polyurethane foam has fully expanded, the pressure hole is welded and sealed.

[0052] The method for manufacturing the floating mooring bollard of the present invention involves fabricating a floating mooring cylinder, assembling the floating mooring cylinder and a prefabricated balancing mooring cable assembly 200 to form the floating mooring bollard; after conducting a pressure sealing test on the cylinder body, prefabricated foam is arranged inside the cylinder body, ultimately filling the accommodating cavity with the prefabricated foam. Even if the shell of the pontoon is perforated or ruptured, water is unlikely to enter the pontoon in a short period of time due to the action of the prefabricated foam. Furthermore, due to the buoyancy of the prefabricated foam, the floating mooring bollard is prevented from sinking due to the total weight exceeding the buoyancy of the pontoon after water seeps into it. The bottom section has a technical problem: it cannot operate with the rise or fall of the water level, posing a safety hazard. At the same time, because the head forming cylinder is filled with pre-made polyurethane foam, which has flame-retardant properties, the sealing performance of the cylinder is further improved by welding a sealing cover plate onto the top cover plate and welding to seal the pressure holes. With the assistance of the pre-made foam filling, water is difficult to penetrate into the cylinder, reducing the corrosion resistance requirements of the inner wall of the cylinder. It requires less frequent maintenance, which helps save manpower and solves the problems of high corrosion resistance requirements and complex anti-corrosion construction procedures for the inner wall of existing floating mooring cylinders.

[0053] Understandably, in this invention, the prefabricated balancing mooring assembly 200 can be a single-layer mooring structure, a double-layer mooring structure, a triple-layer mooring structure, or other multi-layer mooring structures.

[0054] In this embodiment, the shape of the pre-made foam 30 is adapted to the cavity of the cylinder 10, so that the outer wall of the pre-made foam 30 is fitted to the inner wall of the cavity of the cylinder 10, thus preventing water from seeping into the cavity.

[0055] Furthermore, the tail forming cylinder 11 is provided with a first pre-made lightweight polystyrene foam, the shape of which is adapted to the cavity of the tail forming cylinder 11.

[0056] Furthermore, the head forming cylinder 13 is filled with pre-made polyurethane foam, the shape of which is adapted to the cavity of the head forming cylinder 13.

[0057] Even better, the joints of axially adjacent precast foam bodies are staggered to further improve the compactness of the filling.

[0058] Furthermore, a reinforcing rib ring 121 is provided inside the middle cylinder 12, and a second through hole 1211 is provided on the central axis of the reinforcing rib ring 121. Multiple reinforcing rib rings 121 are arranged at intervals along the axial direction, and a second prefabricated lightweight polystyrene foam is provided between adjacent reinforcing rib rings 121 inside the middle cylinder 12.

[0059] Specifically, a reinforcing rib ring 121 is provided in the middle, and four reinforcing rib rings 121 are evenly spaced along the axial direction. In order to facilitate the assembly of the prefabricated foam fan-shaped body and the prefabricated foam cylinder in the cavity of the cylinder 10, the diameter of the second through hole 1211 is not less than the diameter of the first through hole 131.

[0060] In this embodiment, both the first and second prefabricated lightweight polystyrene foam bodies are made of lightweight polystyrene foam material, and the prefabricated polyurethane foam body is made of polyurethane foam material. By filling the tail forming cylinder 11 and the middle cylinder 12 with the first and second prefabricated lightweight polystyrene foam bodies, and filling the head with prefabricated polyurethane foam, the combination of lightweight polystyrene foam and polyurethane foam significantly reduces the weight of the pontoon filling, does not affect the operation of the pontoon, avoids the problem of sinking to the bottom due to water seepage into the cylinder, and improves safety performance; in addition, the head is made of prefabricated polyurethane foam, and the polyurethane foam material has a flame-retardant effect, preventing the foam from being burned when the pressure testing hole is finally welded and sealed.

[0061] Furthermore, the radial cross-sectional shape of the tail forming cylinder 11 is an oblong hole shape, and the radial cross-sectional shape of the head forming cylinder 13 is an oblong hole shape. By setting the radial cross-sectional shape of the tail forming cylinder 11 to an oblong hole shape, the tail forming cylinder 11 has two straight side wall surfaces, which facilitates the mounting of the floating cylinder guide device 40 on the side wall surface of the tail forming cylinder 11; by setting the radial cross-sectional shape of the head forming cylinder 13 to an oblong hole shape, the head forming cylinder 13 has two straight side wall surfaces, which facilitates the mounting of the floating cylinder guide device 40 on the side wall surface of the head forming cylinder 13.

[0062] More preferably, floating cylinder guide devices 40 are provided on the flat sidewalls of the tail forming cylinder 11 and the head forming cylinder 13 respectively.

[0063] Furthermore, the radial cross-sectional shape of the central cylinder 12 is circular.

[0064] Furthermore, to ensure the sealing performance of the connection between the sealing cover plate 20 and the top cover plate 130, the sealing cover plate 20 and the top cover plate 130 are connected by bolts, and a sealing ring is provided between the sealing cover plate 20 and the top cover plate 130. Optionally, the sealing cover plate is detachably bolted to the top cover plate to cover the first through hole, and / or the sealing cover plate is welded to the top cover plate to cover the first through hole. Further, the sealing cover plate is welded to the top cover plate to cover the first through hole. Since the head molding cylinder is filled with pre-fabricated polyurethane foam, which has flame-retardant properties, the welding of the sealing cover plate to the top cover plate further improves the sealing performance of the cylinder. The cylinder has good sealing performance and requires no maintenance; therefore, complex anti-corrosion construction of the inner wall surface of the cylinder is unnecessary. During construction, temporary sealing is achieved using bolted connections, with a sealing ring between the sealing cover plate and the top cover plate. After filling with precast foam, the connection is achieved by welding. Since the floating mooring tube filled with precast foam is fully filled and welded shut, water is unlikely to seep into the tube, requiring no frequent maintenance. Furthermore, it reduces corrosion resistance requirements compared to existing floating mooring tubes, which helps save manpower.

[0065] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method for manufacturing a floating mooring bollard, characterized in that, Includes the following steps: Constructing floating mooring tubes; The floating mooring tube and the prefabricated balancing mooring cable assembly are assembled to form a floating mooring bollard; The step "fabrication of the floating mooring tube" includes: fabricating a tube with a accommodating cavity, the stern of which has a stern sealing plate, and the top of which has a top cover plate, the top cover plate having a first through hole communicating with the accommodating cavity on its central axis; temporarily sealing the top cover plate with a sealing cover plate having a pressure-testing hole, thereby sealing the first through hole, and conducting a sealing performance test on the tube through the pressure-testing hole; if the sealing performance of the tube meets the requirements, removing the sealing cover plate and filling the accommodating cavity with pre-made foam, the pre-made foam comprising pre-made foam cylinders and multiple pre-made foam fan-shaped bodies, the joints of axially adjacent pre-made foam bodies being staggered; the steps for filling the pre-made foam are as follows: Multiple prefabricated foam sector shapes are placed in the accommodating cavity, with the outer wall surface of the prefabricated foam sector shapes fitting against the inner wall surface of the cylinder. The multiple prefabricated foam sector shapes are assembled circumferentially to form a blank cylinder with a central assembly hole. A prefabricated foam cylinder is inserted into the central assembly hole of the blank cylinder, so that the prefabricated foam cylinder and the multiple prefabricated foam sector shapes are combined to form the prefabricated foam body, which fills the accommodating cavity. The cylindrical body includes a coaxially arranged middle cylinder, a head forming cylinder, and a tail forming cylinder. A tail sealing plate is arranged at the end of the tail forming cylinder away from the middle cylinder, and a top cover plate is arranged at the end of the head forming cylinder away from the middle cylinder. A first pre-fabricated lightweight polystyrene foam is filled into the tail forming cylinder, the shape of which is adapted to the cavity of the tail forming cylinder. A second pre-fabricated lightweight polystyrene foam is sequentially filled between two adjacent reinforcing ribs in the middle cylinder along the direction from the tail to the head of the cylindrical body, the shape of which is adapted to the cavity of the middle cylinder. A pre-fabricated polyurethane foam is filled into the head forming cylinder, the shape of which is adapted to the cavity of the head forming cylinder. The sealing cover plate is fixed to the top cover plate, and the pressure hole is sealed by welding; specifically, the sealing cover plate is fixed to the top cover plate, and polyurethane foam is poured into the accommodating cavity through the pressure hole; after the polyurethane foam has fully expanded, the pressure hole is sealed by welding.

2. The method for manufacturing a floating mooring bollard according to claim 1, characterized in that, Construct a uniform cross-section cylinder with openings at both ends according to the preset elevation; The head of the equal cross-section cylinder is cut to form a head blank cylinder; The tail end of the equal cross-section cylinder is cut to form a tail blank cylinder; A reinforcing rib ring is arranged in the middle cylinder between the head blank cylinder and the tail blank cylinder, and multiple reinforcing rib rings are arranged at intervals along the axial direction, wherein the middle of the reinforcing rib ring has a second through hole; The head blank is processed to form the head molded cylinder; The tail blank is processed to form the tail formed cylinder; A sealing cover plate with a pressure punch hole is temporarily placed on the top cover plate to seal the first through hole, and the sealing performance of the cylinder is tested through the pressure punch hole. If the sealing performance of the cylinder meets the requirements, the pre-made foam body is arranged into the accommodating cavity through the first through hole and the second through hole.

3. The method for manufacturing a floating mooring bollard according to any one of claims 1 or 2, characterized in that, The pre-made foam body is sequentially filled in segments along the direction from the tail to the head of the cylinder. The tail forming cylinder is one filling segment, the middle cylinder is one filling segment between two adjacent reinforcing rib rings, and the head forming cylinder is one filling segment at the tail.

4. The method for manufacturing a floating mooring bollard according to claim 2, characterized in that, The outer diameter of the pre-formed foam cylinder of the second pre-formed lightweight polystyrene foam is equal to the diameter of the second through hole, and the pre-formed foam cylinders of two adjacent filling segments along the axial direction abut against each other.

5. The method for manufacturing a floating mooring bollard according to claim 2, characterized in that, According to the preset head height, the top arc segment at the top of the equal cross-section cylinder is cut axially on both sides of the equal cross-section cylinder, and two top lateral openings are formed symmetrically arranged along the middle section at the top of the equal cross-section cylinder. Then, the head blank cylinder is formed by processing the head of the equal cross-section cylinder.

6. The method for manufacturing a floating mooring bollard according to claim 2, characterized in that, According to the preset tail height, the tail arc segment at the tail of the equal cross section cylinder is cut axially on both sides of the equal cross section cylinder, and two tail lateral openings are formed at the tail of the equal cross section cylinder symmetrically arranged along the middle section. Then, the tail blank cylinder is formed by processing at the tail of the equal cross section cylinder.

7. The method for manufacturing a floating mooring bollard according to claim 1, characterized in that, In a horizontal position, the first pre-fabricated lightweight polystyrene foam is filled; and / or In a horizontal position, fill with the second pre-fabricated lightweight polystyrene foam; and / or The pre-fabricated polyurethane foam is filled in either a horizontal or vertical configuration.

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