Metal node of bamboo-wound maritime work photovoltaic support and bamboo-wound maritime work photovoltaic support

Abstract

The invention discloses a metal node of a bamboo-wound maritime work photovoltaic support and the bamboo-wound maritime work photovoltaic support, and the metal node of the bamboo-wound maritime work photovoltaic support comprises a base part, the outer side wall of which is provided with a plurality of flat and straight surfaces; the hollow horizontal inserting part is provided with an open end and a closed end, and the open end of the horizontal inserting part is used for being fixed to a horizontally-arranged pipe in a sealed mode through sealant; one end face of the connecting pipe is fixed to the closed end of the horizontal inserting part, and the other end face of the connecting pipe is used for being welded and fixed to the corresponding flat and straight face of the base part; and the hollow vertical inserting part is provided with an open end and a closed end, the closed end of the vertical inserting part is fixed to the end of the base part, and the open end of the vertical inserting part is used for being fixed to a vertically-arranged pipe in a sealed mode through sealant. The structure of the metal node is improved, so that the assembly steps are changed, the manufacturing cost and the assembly difficulty can be reduced, the scrapping condition during assembly is avoided, and the assembly efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of photovoltaic brackets, and in particular to metal nodes of a bamboo-wrapped marine photovoltaic bracket and a bamboo-wrapped marine photovoltaic bracket. Background Art

[0002] At present, floating photovoltaic power stations are mainly composed of floating structures and mooring anchoring systems. The mainstream process in the industry uses modified high-density polyethylene (modified HDPE) as the floating material. Although the raw materials of high-density polyethylene are easy to obtain and the processing is simple, it has problems such as flammability, weak UV resistance, and poor toughness. In addition, as the service life increases, high-density polyethylene is prone to aging and decomposition into microplastics, which poses a risk of causing seawater pollution and the safety of marine biological food.

[0003] In response to the above problems, a patent document with publication number CN 118494696 A discloses a bamboo-wrapped floating structure and a floating photovoltaic power station thereof, wherein the bamboo-wrapped floating structure includes a floating assembly located below and a frame assembly located above, the floating assembly includes a plurality of lower frame tubes and a first connecting member, each of the lower frame tubes is connected end to end through the first connecting member, the frame assembly includes a plurality of upper frame tubes and a second connecting member, each of the upper frame tubes is connected end to end through the second connecting member, and the bamboo-wrapped floating structure also includes a riser connecting the floating assembly and the frame assembly, the upper end of the riser is connected to the corresponding second connecting member, and the lower end of the riser is connected to the corresponding first connecting member.

[0004] In order to ensure structural strength and control costs, the first connecting member and the second connecting member in the above patent document are both made of steel, and during assembly, the first connecting member and the second connecting member are first welded and then assembled with other components. The specific assembly steps are as follows: 1) Assemble the float assembly so that the first connecting piece is placed on the lower frame tube and connected with the lower frame tube by means of sealant; Assemble the frame assembly so that the second connecting member is placed on the lower frame tube and connected with the lower frame tube by means of sealant; 2) After the sealant of the assembled floating body and the assembly frame is completely cured, the columns are installed, the columns are respectively connected to the first connecting member and the second connecting member through the sealant, and other components are installed.

[0005] The existing assembly method has the following problems: 1. Because the first connecting member and the second connecting member have been pre-welded, high precision is required when assembling the floating body assembly and the frame assembly, which leads to high production costs and great assembly difficulty.

[0006] 2. If the installation is not completed within the specified time, the sealant will solidify and cause the product to be scrapped.

[0007] 3. After the installation of the float assembly and the frame assembly is completed, it is necessary to wait for the sealant of the connecting parts to completely cure before assembling the float assembly and the frame assembly. Similarly, after the installation between the float assembly and the frame assembly is completed, it is also necessary to wait for the sealant on the column to completely cure before proceeding to the next process, which will result in a lot of wasted work time. Summary of the invention

[0008] In view of the above problems, the present invention overcomes at least one disadvantage and proposes a metal node of a bamboo-wrapped marine photovoltaic support and a bamboo-wrapped marine photovoltaic support.

[0009] The technical solution adopted by the present invention is as follows: A metal node of a bamboo-wrapped offshore photovoltaic support, comprising: A base, wherein the outer side wall of the base has a plurality of flat surfaces; A hollow horizontal plug-in portion, the horizontal plug-in portion having an open end and a closed end, the open end of the horizontal plug-in portion being used for sealing and fixing with a horizontally arranged tube by means of a sealant; A connecting pipe, one end face of which is fixed to the closed end of the horizontal plug-in portion, and the other end face of which is used for welding and fixing to the flat surface corresponding to the base; A hollow vertical plug-in portion, the vertical plug-in portion having an open end and a closed end, the closed end of the vertical plug-in portion being fixed to the end of the base portion, and the open end of the vertical plug-in portion being used for sealing and fixing with a vertically arranged tube through a sealant; The order of assembling metal nodes is: First, the horizontal plug-in part and the connecting pipe are taken as a whole, and the open end of the horizontal plug-in part is sealed and fixed with the horizontally arranged pipe by sealing glue. First, the base and the vertical plug-in part are taken as a whole, and the open end of the vertical plug-in part is sealed and fixed with the vertically arranged pipe by sealing glue. Then, the end surface of the connecting pipe away from the horizontal plug-in portion is brought into contact with the flat surface corresponding to the base, and is fixed by welding.

[0010] The metal node of the present application is not pre-welded to form a complete body, but the horizontal plug-in part and the connecting pipe are pre-assembled as a whole, the open end of the horizontal plug-in part is sealed and fixed with the horizontally arranged pipe by sealing glue, the base and the vertical plug-in part are pre-assembled as a whole, the open end of the vertical plug-in part is sealed and fixed with the vertically arranged pipe by sealing glue; then the end face of the connecting pipe away from the horizontal plug-in part is contacted with the flat surface corresponding to the base, and welded and fixed. After such arrangement, the sealed connection of the horizontally arranged pipe and the vertically arranged pipe can be completed first, the process is separated, and there is no need to wait for the glue to solidify during assembly. Compared with the first connector and the second connector of the prior art, the assembly time can be effectively reduced. In addition, there will be no product scrapping. In addition, the connecting pipe is finally welded after contacting with the flat surface, and the up, down, left and right positions can be adaptively adjusted according to the situation. Compared with the prior art that all are pre-welded, the assembly accuracy requirement is low.

[0011] That is, the present application improves the structure of the metal node, thereby changing the assembly steps, which can reduce the production cost and assembly difficulty, avoid scrapping during assembly, and greatly improve assembly efficiency.

[0012] In one embodiment of the present invention, the base, the horizontal plug-in portion, the connecting pipe and the vertical plug-in portion are made of the same material, which is steel.

[0013] In actual application, other metal materials that meet the structural strength requirements can also be used.

[0014] In one embodiment of the present invention, the horizontal plug-in portion is a cover-shaped structure; the vertical plug-in portion is a cover-shaped structure.

[0015] In one embodiment of the present invention, the width of the flat surface is greater than the maximum horizontal width of the end surface of the connecting pipe, and the height of the flat surface is greater than the maximum vertical width of the end surface of the connecting pipe.

[0016] This setting can ensure better adjustment margin during welding.

[0017] The present application also discloses a bamboo-wrapped marine photovoltaic support, comprising a lower frame, an upper frame and a plurality of risers; The lower frame includes a plurality of first horizontal tubes and a plurality of first metal nodes, wherein the first metal nodes are the metal nodes of the bamboo-wrapped offshore photovoltaic bracket described above, and the open ends of the horizontal plug-in parts of the first metal nodes are sealed and fixed to the ends of the corresponding first horizontal tubes by means of sealant; The upper frame includes a plurality of second horizontal tubes and a plurality of second metal nodes, wherein the second metal nodes are the metal nodes of the bamboo-wrapped offshore photovoltaic bracket described above, and the open ends of the horizontal plug-in parts of the second metal nodes are sealed and fixed to the ends of the corresponding second horizontal tubes by means of sealant; The lower end of the riser is sealed and fixed to the open end of the vertical plug-in portion of the first metal node by means of sealant, and the upper end of the riser is sealed and fixed to the open end of the vertical plug-in portion of the second metal node by means of sealant; The first horizontal pipe, the second horizontal pipe and the vertical pipe are all bamboo-wrapped composite pipes.

[0018] Bamboo-wrapped composite pipe is a bio-based material made of bamboo as the base material and resin as the adhesive by winding process. It has the characteristics of light weight, seawater corrosion resistance, low cost, long service life, green and low carbon, environmental protection and energy saving. The bamboo-wrapped tubular buoy and floating frame made of bamboo-wrapped marine materials, and the bamboo-wrapped marine photovoltaic support structure with integrated buoy and frame can reduce the use of traditional frame steel materials, and has the advantages of good buoyancy characteristics, environmental friendliness, long service life, low cost, etc. It has strong potential to replace the high-density polyethylene buoy and steel welded structure in the current floating water photovoltaic system.

[0019] In one embodiment of the present invention, the lower frame has N first horizontal tubes and N-1 first metal nodes, and the N first horizontal tubes are connected end to end in sequence through the N-1 first metal nodes; The upper frame has N second horizontal tubes and N-1 second metal nodes, and the N second horizontal tubes are connected end to end in sequence through the N-1 second metal nodes; The number of risers is N-1; N is greater than or equal to 3.

[0020] In one embodiment of the present invention, the first metal node and the second metal node both have lugs, and the lugs are fixed to at least one of the base, the horizontal plug-in portion, the connecting tube, and the vertical plug-in portion; It also includes a diagonal brace, one or two of which are provided between two adjacent risers, one end of which is fixed to a lug of a first metal node of a first riser, and the other end of which is fixed to a lug of a second metal node of a second riser; When there are two diagonal bracing members between two adjacent vertical pipes, the two diagonal bracing members are cross-arranged.

[0021] In one embodiment of the present invention, the upper frame further includes a clamp and a purlin, the clamp is fixed to the second horizontal tube, and the purlin is fixed to the clamp by welding.

[0022] In one embodiment of the present invention, N is 4, and both the lower frame and the upper frame are rectangular structures.

[0023] In one embodiment of the present invention, the steps of assembling the bamboo-wrapped marine photovoltaic support are as follows: Prepare the first horizontal pipe, the second horizontal pipe, the vertical pipe, the diagonal braces, the hoops and the purlins; The horizontal plug-in part and the connecting pipe of the first metal node are taken as a whole, the open end of the horizontal plug-in part is sealed and fixed to the end of the first horizontal pipe by sealing with sealant, and a lug is welded on the connecting pipe of the first metal node; the horizontal plug-in part and the connecting pipe of the second metal node are taken as a whole, the open end of the horizontal plug-in part is sealed and fixed to the end of the second horizontal pipe by sealing with sealant, and a lug is welded on the connecting pipe of the second metal node; the base and the vertical plug-in part of the first metal node are taken as a whole, the open end of the vertical plug-in part is sealed and fixed to the first end of the vertical pipe by sealing with sealant, the base and the vertical plug-in part of the second metal node are taken as a whole, the open end of the vertical plug-in part is sealed and fixed to the second end of the vertical pipe by sealing with sealant; The second horizontal tubes are connected end to end, and an angle plate is welded between the connecting tubes of two adjacent second metal nodes. The angle plate on the second metal node is used to make the two connected second horizontal tubes present a preset angle, and then the clamp and purlin are installed to obtain the first assembly; the first horizontal tubes are connected end to end, and an angle plate is welded between the connecting tubes of two adjacent first metal nodes. The angle plate on the first metal node is used to make the two connected first horizontal tubes present a preset angle, and then the base of the first metal node at the lower end of the vertical tube is placed between the two adjacent first horizontal tubes, so that the base of the first metal node contacts the end faces of the two connecting tubes, and then the connecting tube and the base of the first metal node are welded and fixed; Place the first assembly above the vertical pipe so that the base of the second metal node at the upper end of the vertical pipe is located between two adjacent second horizontal pipes, and the base of the second metal node contacts the end surfaces of the two connecting pipes, and then weld and fix the connecting pipes and the base of the second metal node; The brace is secured to the lug by welding or fasteners.

[0024] The first step of this application completes the sealed connection of the ports of the first horizontal pipe, the second horizontal pipe and the vertical pipe. Compared with the first generation product (the solution of the background technology), it only takes 1 / 3 of the installation time. In addition, when assembling the upper frame, the lower frame and the upper and lower frames, the precision requirements are significantly reduced, the assembly is convenient, and the product is avoided from being scrapped.

[0025] The beneficial effects of the present invention are as follows: the metal node of the present application is not pre-welded to form a complete body, but the horizontal plug-in part and the connecting pipe are pre-assembled as a whole, the open end of the horizontal plug-in part is sealed and fixed with the horizontally arranged pipe by sealing glue, the base and the vertical plug-in part are pre-assembled as a whole, the open end of the vertical plug-in part is sealed and fixed with the vertically arranged pipe by sealing glue; then the end face of the connecting pipe away from the horizontal plug-in part is contacted with the flat surface corresponding to the base, and welded and fixed. After such arrangement, the sealed connection of the horizontally arranged pipe and the vertically arranged pipe can be completed first, the process is separated, and there is no need to wait for the glue to solidify during assembly. Compared with the first connecting piece and the second connecting piece of the prior art, the assembly time can be effectively reduced. In addition, there will be no product scrapping. In addition, the connecting pipe is finally welded after contacting with the flat surface, and the up, down, left and right positions can be adaptively adjusted according to the situation. Compared with the prior art that all are pre-welded, the assembly accuracy requirement is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of a first connecting member of the prior art; Figure 2 It is a partial exploded schematic diagram of the first connecting member in the prior art; Figure 3 This is a schematic diagram of a bamboo-wrapped offshore photovoltaic support; Figure 4 is a schematic diagram of a metal node; Figure 5 It is a cross-sectional view of a metal node; Figure 6 is a schematic diagram after the ends of the first horizontal pipe, the second horizontal pipe and the vertical pipe are sealed; Figure 7 is a schematic diagram of a first assembly; Figure 8 is a schematic diagram of the lower frame and riser.

[0027] The reference numerals in the figures are: 100, first connecting member; 101, cylindrical base; 102, first plug-in portion; 103, circular connecting tube; 104, third plug-in portion; 1a, first metal node; 1b, second metal node; 11, base; 111, flat surface; 12, horizontal plug-in portion; x, open end; y, closed end; 13, connecting tube; 14, vertical plug-in portion; 15, lug; 16, angle plate; 2, lower frame; 21, first horizontal tube; 3, upper frame; 31, second horizontal tube; 4, vertical tube; 5, diagonal brace; 6, clamp; 7, purlin. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] The present invention is described in detail below in conjunction with the accompanying drawings.

[0032] like Figure 3 , 4 As shown in 5, a metal node of a bamboo-wrapped offshore photovoltaic support comprises: A base 11, the outer side wall of the base 11 has a plurality of flat surfaces 111; A hollow horizontal plug-in portion 12, wherein the horizontal plug-in portion 12 has an open end x and a closed end y, and the open end x of the horizontal plug-in portion 12 is used to be sealed and fixed with a horizontally arranged tube (the first horizontal tube 21 or the second horizontal tube 31) by means of a sealant; A connecting pipe 13, one end face of the connecting pipe 13 is fixed to the closed end y of the horizontal plug-in portion 12, and the other end face is used for welding and fixing to the flat surface 111 corresponding to the base 11; A hollow vertical plug-in portion 14, the vertical plug-in portion 14 has an open end x and a closed end y, the closed end y of the vertical plug-in portion 14 is fixed to the end of the base 11, and the open end x of the vertical plug-in portion 14 is used to be sealed and fixed to the vertically arranged pipe (vertical pipe 4) through a sealant; The order of assembling metal nodes is: First, the horizontal plug-in part 12 and the connecting tube 13 are taken as a whole, and the open end x of the horizontal plug-in part 12 is sealed and fixed with the horizontally arranged tube by means of sealant. First, the base 11 and the vertical plug-in part 14 are taken as a whole, and the open end x of the vertical plug-in part 14 is sealed and fixed with the vertically arranged tube by means of sealant. Then, the end surface of the connecting pipe 13 away from the horizontal plug-in portion 12 is brought into contact with the corresponding flat surface 111 of the base 11 and fixed by welding.

[0033] like Figure 1 and Figure 2 As shown, Figure 1 is a schematic diagram of a first connecting member 100 in the prior art, Figure 2 This is a partial exploded schematic diagram of the first connector 100 of the prior art. The first connector 100 and the second connector have similar structures, and the first connector 100 is now specifically described. The first connector 100 includes a cylindrical base 101, a cover-shaped first plug-in portion 102, a circular connecting tube 103 connecting the first plug-in portion 102 and the cylindrical base 101, and a cover-shaped third plug-in portion 104. All parts of the first connector 100 are fixed by welding, wherein the first plug-in portion 102 is used to be sleeved on the end of the lower frame tube and is sealed and connected to the lower frame tube through a sealant, and the second plug-in portion is used to be sleeved on the end of the vertical pipe 4 and is sealed and connected to the vertical pipe 4 through a sealant. The sealant is in direct contact with the first plug-in portion 102 and the third plug-in portion 104. Since the sealant cannot withstand the high temperature during welding, the first plug-in portion 102 cannot be first connected to the lower frame tube through the sealant during assembly, and then the first plug-in portion 102 cannot be welded to the circular connecting tube 103. Instead, the first plug-in portion 102 and the circular connecting tube 103 need to be welded first, and the third plug-in portion 104 needs to be welded to the cylindrical base 101. Due to the circular structure of the circular connecting tube 103 and the cylindrical base 101, the welding surface requirements are relatively high when the two are matched. If the horizontal position is not aligned, welding cannot be performed. Due to the limitation of this structure, the prior art needs to pre-weld the first connecting piece 100 and then assemble it with other parts.

[0034] The metal node of the present application is not pre-welded to form a complete body, but the horizontal plug part 12 and the connecting pipe 13 are pre-assembled as a whole, the open end x of the horizontal plug part 12 is sealed and fixed with the horizontally arranged pipe by sealing glue, the base 11 and the vertical plug part 14 are pre-assembled as a whole, and the open end x of the vertical plug part 14 is sealed and fixed with the vertically arranged pipe by sealing glue; then the end face of the connecting pipe 13 away from the horizontal plug part 12 is contacted with the flat surface 111 corresponding to the base 11, and welded and fixed. After such arrangement, the sealed connection of the horizontally arranged pipe and the vertically arranged pipe can be completed first, the process is separated, and there is no need to wait for the glue to solidify during assembly. Compared with the first connector 100 and the second connector of the prior art, the assembly time can be effectively reduced. In addition, there will be no product scrapping. In addition, the connecting pipe 13 is finally welded after contacting with the flat surface 111, and the position of the upper, lower, left and right can be adjusted adaptively according to the situation. Compared with the prior art that all are pre-welded, the assembly accuracy requirement is low.

[0035] That is, the present application improves the structure of the metal node, thereby changing the assembly steps, which can reduce the production cost and assembly difficulty, avoid scrapping during assembly, and greatly improve assembly efficiency.

[0036] In this embodiment, the base 11, the horizontal plug-in portion 12, the connecting pipe 13 and the vertical plug-in portion 14 are made of the same material, that is, steel. In actual use, they can also be made of other metal materials that meet the structural strength requirements.

[0037] like Figure 4 and 5 As shown, in this embodiment, the horizontal plug-in portion 12 is a cover-like structure; the vertical plug-in portion 14 is a cover-like structure.

[0038] like Figure 5 As shown, in this embodiment, the width of the flat surface 111 is greater than the maximum horizontal width of the end surface of the connecting pipe 13, and the height of the flat surface 111 is greater than the maximum vertical width of the end surface of the connecting pipe 13. This arrangement can ensure a good adjustment margin during welding.

[0039] like Figure 3 , 4 As shown in 5 , this embodiment also discloses a bamboo-wrapped marine photovoltaic support, comprising a lower frame 2, an upper frame 3, and a plurality of risers 4; The lower frame 2 includes a plurality of first horizontal tubes 21 and a plurality of first metal nodes 1a. The first metal node 1a is a metal node of the bamboo-wrapped offshore photovoltaic support of this embodiment. The open end x of the horizontal plug-in portion 12 of the first metal node 1a is sealed and fixed to the end of the corresponding first horizontal tube 21 by a sealant. The upper frame 3 includes a plurality of second horizontal tubes 31 and a plurality of second metal nodes 1b. The second metal node 1b is a metal node of the bamboo-wrapped offshore photovoltaic support of this embodiment. The open end x of the horizontal plug-in portion 12 of the second metal node 1b is sealed and fixed to the end of the corresponding second horizontal tube 31 by a sealant. The lower end of the riser 4 is sealed and fixed to the open end x of the vertical plug-in portion 14 of the first metal node 1a by means of sealant, and the upper end of the riser 4 is sealed and fixed to the open end x of the vertical plug-in portion 14 of the second metal node 1b by means of sealant; The first horizontal pipe 21, the second horizontal pipe 31 and the vertical pipe 4 are all bamboo-wrapped composite pipes.

[0040] Bamboo-wrapped composite pipe is a bio-based material made of bamboo as the base material and resin as the adhesive by winding process. It has the characteristics of light weight, seawater corrosion resistance, low cost, long service life, green and low carbon, environmental protection and energy saving. The bamboo-wrapped tubular buoy and floating frame made of bamboo-wrapped marine materials, and the bamboo-wrapped marine photovoltaic support structure with integrated buoy and frame can reduce the use of traditional frame steel materials, and has the advantages of good buoyancy characteristics, environmental friendliness, long service life, low cost, etc. It has strong potential to replace the high-density polyethylene buoy and steel welded structure in the current floating water photovoltaic system.

[0041] In this embodiment, the lower frame 2 has N first horizontal tubes 21 and N-1 first metal nodes 1a, and the N first horizontal tubes 21 are connected end to end in sequence through the N-1 first metal nodes 1a; The upper frame 3 has N second horizontal tubes 31 and N-1 second metal nodes 1b, and the N second horizontal tubes 31 are connected end to end in sequence through the N-1 second metal nodes 1b; The number of risers 4 is N-1.

[0042] In actual application, N is greater than or equal to 3. In this embodiment, N is 4. The lower frame 2 and the upper frame 3 are both rectangular structures.

[0043] N is greater than or equal to 3.

[0044] like Figure 3 and 4 As shown, in this embodiment, the first metal node 1a and the first metal node 1a both have a lug 15, and the lug 15 is fixed to at least one of the base 11, the horizontal plug-in portion 12, the connecting tube 13 and the vertical plug-in portion 14; It also includes a diagonal brace 5, one or two diagonal braces 5 are provided between two adjacent risers 4, one end of the diagonal brace 5 is fixed to the lug 15 of the first metal node 1a of the first riser 4, and the other end of the diagonal brace 5 is fixed to the lug 15 of the second metal node 1b of the second riser 4; When there are two diagonal bracing members 5 between two adjacent vertical pipes 4, the two diagonal bracing members 5 are cross-arranged.

[0045] like Figure 3 As shown, in this embodiment, the upper frame 3 further includes a clamp 6 and a purlin 7. The clamp 6 is fixed to the second horizontal tube 31, and the purlin 7 is fixed to the clamp 6 by welding.

[0046] In this embodiment, one assembly step of the bamboo-wrapped offshore photovoltaic support is: Prepare the first horizontal tube 21, the second horizontal tube 31, the vertical tube 4, the diagonal brace 5, the hoop 6 and the purlin 7; like Figure 6 As shown, the horizontal plug-in portion 12 and the connecting pipe 13 of the first metal node 1a are taken as a whole, the open end x of the horizontal plug-in portion 12 is sealed and fixed to the end of the first horizontal pipe 21 by sealing glue, and the connecting pipe 13 of the first metal node 1a is welded with a lug 15; the horizontal plug-in portion 12 and the connecting pipe 13 of the second metal node 1b are taken as a whole, the open end x of the horizontal plug-in portion 12 is sealed and fixed to the end of the second horizontal pipe 31 by sealing glue, and the connecting pipe 13 of the second metal node 1b is welded with a lug 15; the base 11 and the vertical plug-in portion 14 of the first metal node 1a are taken as a whole, the open end x of the vertical plug-in portion 14 is sealed and fixed to the first end of the vertical pipe 4 by sealing glue, the base 11 and the vertical plug-in portion 14 of the second metal node 1b are taken as a whole, the open end x of the vertical plug-in portion 14 is sealed and fixed to the second end of the vertical pipe 4 by sealing glue; like Figure 7 As shown, the second horizontal tubes 31 are connected end to end, and an angle plate 16 is welded between the connecting tubes 13 of two adjacent second metal nodes 1b. The angle plate 16 on the second metal node 1b is used to make the two connected second horizontal tubes 31 present a preset angle, and then the hoop 6 and the purlin 7 are installed to obtain the first assembly; Figure 8 As shown, the first horizontal tubes 21 are connected end to end, and an angle plate 16 is welded between the connecting tubes 13 of two adjacent first metal nodes 1a. The angle plate 16 on the first metal node 1a is used to make the two connected first horizontal tubes 21 present a preset angle, and then the base 11 of the first metal node 1a at the lower end of the vertical tube 4 is placed between the two adjacent first horizontal tubes 21, so that the base 11 of the first metal node 1a contacts the end faces of the two connecting tubes 13, and then the connecting tube 13 and the base 11 of the first metal node 1a are welded and fixed; like Figure 3As shown, the first assembly is placed above the vertical pipe 4, so that the base 11 of the second metal node 1b at the upper end of the vertical pipe 4 is located between two adjacent second horizontal pipes 31, and the base 11 of the second metal node 1b is in contact with the end surfaces of the two connecting pipes 13, and then the connecting pipes 13 and the base 11 of the second metal node 1b are welded and fixed; the diagonal brace 5 is fixed to the lug 15 by welding or fasteners.

[0047] The first step of the present application completes the sealed connection of the ports of the first horizontal pipe 21, the second horizontal pipe 31 and the vertical pipe 4. Compared with the first generation product (the solution of the background technology), it only takes 1 / 3 of the installation time. In addition, when assembling the upper frame 3, the lower frame 2 and the upper and lower frames 2, the precision requirements are significantly reduced, the assembly is convenient, and the product is avoided from being scrapped.

[0048] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention and the drawings, directly or indirectly used in other related technical fields, is also included in the protection scope of the present invention.

Claims

1. A metal node of a bamboo-wrapped offshore photovoltaic support, characterized in that: include: A base, wherein the outer side wall of the base has a plurality of flat surfaces; A hollow horizontal plug-in portion, the horizontal plug-in portion having an open end and a closed end, the open end of the horizontal plug-in portion being used for sealing and fixing with a horizontally arranged tube by means of a sealant; A connecting pipe, one end face of which is fixed to the closed end of the horizontal plug-in portion, and the other end face of which is used for welding and fixing to the flat surface corresponding to the base; A hollow vertical plug-in portion, the vertical plug-in portion having an open end and a closed end, the closed end of the vertical plug-in portion being fixed to the end of the base portion, and the open end of the vertical plug-in portion being used for sealing and fixing with a vertically arranged tube through a sealant; The order of assembling metal nodes is: First, the horizontal plug-in part and the connecting pipe are taken as a whole, and the open end of the horizontal plug-in part is sealed and fixed with the horizontally arranged pipe by sealing glue. First, the base and the vertical plug-in part are taken as a whole, and the open end of the vertical plug-in part is sealed and fixed with the vertically arranged pipe by sealing glue. Then, the end surface of the connecting pipe away from the horizontal plug-in portion is brought into contact with the flat surface corresponding to the base, and is fixed by welding.

2. The metal node of the bamboo-wrapped offshore photovoltaic support as claimed in claim 1, characterized in that: The base, the horizontal plug-in portion, the connecting pipe and the vertical plug-in portion are made of the same material, which is steel.

3. The metal node of the bamboo-wrapped offshore photovoltaic support according to claim 1, characterized in that: The horizontal plug-in portion is a cover-shaped structure; the vertical plug-in portion is a cover-shaped structure.

4. The metal node of the bamboo-wrapped offshore photovoltaic support according to claim 1, characterized in that: The width of the flat surface is greater than the maximum horizontal width of the end surface of the connecting pipe, and the height of the flat surface is greater than the maximum vertical width of the end surface of the connecting pipe.

5. A bamboo-wrapped offshore photovoltaic support, characterized in that: It includes a lower frame, an upper frame and a plurality of risers; The lower frame comprises a plurality of first horizontal tubes and a plurality of first metal nodes, wherein the first metal nodes are metal nodes of the bamboo-wrapped offshore photovoltaic support according to any one of claims 1 to 4, and the open ends of the horizontal plug-in parts of the first metal nodes are sealed and fixed to the ends of the corresponding first horizontal tubes by means of sealant; The upper frame includes a plurality of second horizontal tubes and a plurality of second metal nodes, wherein the second metal nodes are metal nodes of the bamboo-wrapped offshore photovoltaic bracket according to any one of claims 1 to 4, and the open ends of the horizontal plug-in parts of the second metal nodes are sealed and fixed to the ends of the corresponding second horizontal tubes by means of sealant; The lower end of the riser is sealed and fixed to the open end of the vertical plug-in portion of the first metal node by means of sealant, and the upper end of the riser is sealed and fixed to the open end of the vertical plug-in portion of the second metal node by means of sealant; The first horizontal pipe, the second horizontal pipe and the vertical pipe are all bamboo-wrapped composite pipes.

6. The bamboo-wrapped offshore photovoltaic support as claimed in claim 5, characterized in that: The lower frame has N first horizontal tubes and N-1 first metal nodes, and the N first horizontal tubes are connected end to end in sequence through the N-1 first metal nodes; The upper frame has N second horizontal tubes and N-1 second metal nodes, and the N second horizontal tubes are connected end to end in sequence through the N-1 second metal nodes; The number of risers is N-1; N is greater than or equal to 3.

7. The bamboo-wrapped offshore photovoltaic support as claimed in claim 6, characterized in that: The first metal node and the second metal node each have a lug, and the lug is fixed to at least one of the base, the horizontal plug-in portion, the connecting pipe, and the vertical plug-in portion; It also includes a diagonal brace, one or two of which are provided between two adjacent risers, one end of which is fixed to a lug of a first metal node of a first riser, and the other end of which is fixed to a lug of a second metal node of a second riser; When there are two diagonal bracing members between two adjacent vertical pipes, the two diagonal bracing members are cross-arranged.

8. The bamboo-wrapped offshore photovoltaic support as claimed in claim 7, characterized in that: The upper frame also includes a hoop and a purlin, wherein the hoop is fixed to the second horizontal tube, and the purlin is fixed to the hoop by welding.

9. The bamboo-wrapped offshore photovoltaic support according to claim 8, characterized in that: The N is 4, and both the lower frame and the upper frame are rectangular structures.

10. The bamboo-wrapped offshore photovoltaic support according to claim 8, characterized in that: The assembly steps of bamboo wrapped offshore photovoltaic support are as follows: Prepare the first horizontal pipe, the second horizontal pipe, the vertical pipe, the diagonal braces, the hoops and the purlins; The horizontal plug-in part and the connecting pipe of the first metal node are taken as a whole, the open end of the horizontal plug-in part is sealed and fixed to the end of the first horizontal pipe by sealing with sealant, and a lug is welded on the connecting pipe of the first metal node; the horizontal plug-in part and the connecting pipe of the second metal node are taken as a whole, the open end of the horizontal plug-in part is sealed and fixed to the end of the second horizontal pipe by sealing with sealant, and a lug is welded on the connecting pipe of the second metal node; the base and the vertical plug-in part of the first metal node are taken as a whole, the open end of the vertical plug-in part is sealed and fixed to the first end of the vertical pipe by sealing with sealant, the base and the vertical plug-in part of the second metal node are taken as a whole, the open end of the vertical plug-in part is sealed and fixed to the second end of the vertical pipe by sealing with sealant; The second horizontal tubes are connected end to end, and an angle plate is welded between the connecting tubes of two adjacent second metal nodes. The angle plate on the second metal node is used to make the two connected second horizontal tubes present a preset angle, and then the clamp and purlin are installed to obtain the first assembly; the first horizontal tubes are connected end to end, and an angle plate is welded between the connecting tubes of two adjacent first metal nodes. The angle plate on the first metal node is used to make the two connected first horizontal tubes present a preset angle, and then the base of the first metal node at the lower end of the vertical tube is placed between the two adjacent first horizontal tubes, so that the base of the first metal node contacts the end faces of the two connecting tubes, and then the connecting tube and the base of the first metal node are welded and fixed; Place the first assembly above the vertical pipe so that the base of the second metal node at the upper end of the vertical pipe is located between two adjacent second horizontal pipes, and the base of the second metal node contacts the end surfaces of the two connecting pipes, and then weld and fix the connecting pipes and the base of the second metal node; The brace is secured to the lug by welding or fasteners.

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