Suspender device for mounting operation and maintenance channel of offshore photovoltaic grid

Abstract

The utility model discloses a suspender device for installation of an operation and maintenance channel of an offshore photovoltaic net rack, which comprises an installation assembly and a suspender 2, the installation assembly comprises a sleeve, a connecting bolt and a suspender 1, the sleeve is arranged on the suspender 1, a bolt ball is provided with a connecting hole, and the tail end of the connecting bolt penetrates through the suspender 1 and the sleeve to be connected in the connecting hole. The bottom end of the first suspender is fixedly welded with an expanded round tube, the top end of the second suspender is fixedly welded with the expanded round tube, and the second suspender is fixedly connected with the connecting handrail through a connecting piece. The mounting assembly is ingenious and reasonable in design and high in practicability, the mounting assembly and the bolt ball are mounted and positioned through matching of the connecting bolts and the connecting holes, assembling is convenient and simple, the second suspender and the first suspender are connected through the expanded-face round pipe, and the welding contact area of the second suspender and the mounting assembly is increased through the expanded-face round pipe; a certain installation error range is allowed when the second suspender and the installation assembly are welded and assembled, the requirement for installation precision is reduced, the installation difficulty is lowered, and therefore the overall assembly efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic grid installation, and particularly relates to a hanging rod device for installing an operation and maintenance passage of an offshore photovoltaic grid. Background Technique

[0002] With the increasing urgent demand for renewable energy and clean energy globally, solar energy, as a clean, pollution-free, and renewable energy source, has received extensive attention and emphasis. Especially in the sea, due to the open water surface, sufficient sunlight, and no restriction by ground land resources, offshore photovoltaic power stations (hereinafter referred to as "offshore photovoltaics") have become a hot research topic and an important development direction in recent years.

[0003] As the core component of the offshore photovoltaic system, the design and construction of the offshore photovoltaic grid directly affect the power generation efficiency of photovoltaic power generation and the stability of the system. To ensure the power generation efficiency of photovoltaic power generation and the convenience of later maintenance, an operation and maintenance passage for installing the photovoltaic grid is often used as a way to replace and repair the photovoltaic grid in the later stage. However, considering construction safety and construction costs, it is not advisable to have a large number of personnel working on the sea. The alternative approach is to assemble the photovoltaic support as a whole on land, transport it to the installation site, and hoist and install it as a whole on the pre-drilled pile foundation. The photovoltaic support is horizontally installed on the ground. Therefore, when installing the operation and maintenance passage on the ground, it is necessary to rotate it to the designed angle in advance, and then hoist and flip the grid, and use an angle gauge and a chain block to cooperate to adjust the angle. In the prior art, the operation and maintenance passage is usually assembled on-site. During the welding process, it is extremely easy for components to generate installation errors, resulting in misalignment when the overall structure is installed with the grid. At the same time, it is easy to generate angle deviations during welding, greatly increasing the on-site installation difficulty, and it is also not conducive to subsequent angle adjustment, improving the assembly difficulty. Summary of the Invention

[0004] The purpose of the utility model is to provide a technical solution for a hanging rod device for installing an operation and maintenance passage of an offshore photovoltaic grid in view of the deficiencies of the prior art. The structure is ingeniously and reasonably designed, and has strong practicability. The installation components are installed and positioned with the bolt ball through connecting bolts and connecting holes, which is convenient and simple to assemble. Moreover, an enlarged surface round tube is used to connect the second hanging rod and the first hanging rod. The enlarged surface round tube increases the welding contact area between the second hanging rod and the installation components, allowing a certain range of installation errors when the second hanging rod is welded and assembled with the installation components, reducing the requirement for installation accuracy, lowering the installation difficulty, and thus effectively improving the overall assembly efficiency.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A boom device for installing an operation and maintenance passage of an offshore photovoltaic grid frame, comprising an installation component and a second boom. The installation component includes a sleeve, a connecting bolt and a first boom. The sleeve is arranged on the first boom. A connecting hole is provided on the bolt ball. The tail end of the connecting bolt passes through the first boom and the sleeve and is connected in the connecting hole to realize the connection and fixation of the installation component and the bolt ball. A widened surface round tube is welded and fixed to the bottom end of the first boom. The top end of the second boom is welded and fixed to the widened surface round tube. The second boom is fixedly connected to the connecting handrail through a connecting piece. The overall structure is ingeniously and reasonably designed and has strong practicability. The installation component realizes the installation and positioning with the bolt ball through the cooperation of the connecting bolt and the connecting hole, and the assembly is convenient and simple. Moreover, the widened surface round tube is used to connect the second boom and the first boom. The widened surface round tube increases the welding contact area between the second boom and the installation component, so that a certain installation error range is allowed when the second boom and the installation component are welded and assembled, reducing the requirement for installation accuracy, lowering the installation difficulty, and thus effectively improving the overall assembly efficiency.

[0007] Furthermore, a cutting surface is provided on the bolt ball, and the connecting hole is arranged on the cutting surface. The top end of the sleeve abuts and fits with the cutting surface. The design of the cutting surface can facilitate the machining of the connecting hole. The connecting hole is a threaded hole, which cooperates with the connecting bolt to realize the connection and fixation of the installation component and the bolt ball. At the same time, the cutting surface can also ensure that the contact surface between the sleeve and the bolt ball is a plane, facilitating the actual alignment and installation, and ensuring the connection firmness and stability after assembly.

[0008] Furthermore, a tapered head is arranged between the first boom and the sleeve. The large end of the tapered head is welded and fixed to the first boom, and the small end of the tapered head is welded and fixed to the sleeve. The design is ingenious and reasonable. The tapered head design can disperse the stress at the connection, improve the connection stability and durability. During actual installation, the tail end of the connecting bolt passes through the tapered head and the sleeve and is screwed into the connecting hole. The head of the connecting bolt is limited in the tapered head to ensure the connection tightness and firmness. The tapered head is fixedly connected to the first boom and the sleeve by welding, effectively ensuring the overall strength after assembly and improving the overall load-bearing capacity.

[0009] Furthermore, the outer wall of the sleeve is a polygonal structure. Designing the outer wall of the sleeve as a polygonal structure can improve the structural stability and load-bearing capacity of the sleeve.

[0010] Furthermore, a reduced-opening chamfer 1 with an integrally formed structure is provided at the bottom end of the first boom. The integrally formed design can facilitate the actual processing and forming. The reduced-opening chamfer 1 is welded and fixed to the top surface of the widened surface round tube. The design of the reduced-opening chamfer 1 can disperse the stress concentration phenomenon at the connection between the first boom and the widened surface round tube, enhancing the connection strength and stability.

[0011] Furthermore, a reduced-opening chamfer 2 with an integrally formed structure is provided at the top end of the second boom. The integrally formed design can facilitate the actual processing and forming. The reduced-opening chamfer 2 is welded and fixed to the bottom surface of the widened surface round tube. The design of the reduced-opening chamfer 2 can disperse the stress concentration phenomenon at the connection between the second boom and the widened surface round tube, enhancing the connection strength and stability.

[0012] Furthermore, the connecting member includes a connecting support plate and a fixing bolt. A plurality of connecting support plates are welded and fixed along the length direction of the second suspension rod. The connecting support plates are fixedly connected to the connecting handrail through the fixing bolts. The plurality of connecting support plates are preferably designed to be evenly distributed to ensure the balance and stability of the structure. The connecting support plates are welded and fixed to the second suspension rod as a whole to ensure the firmness and reliability of the overall structure. The connecting support plates are then combined with the fixing bolts to fix the second suspension rod and the connecting handrail. The assembly and disassembly are convenient and simple, and the firmness and reliability of the assembly of the second suspension rod and the operation and maintenance passage are ensured.

[0013] Furthermore, stiffening ribs are welded and fixed between the enlarged-surface circular tube and the first suspension rod. The stiffening ribs are evenly distributed along the circumferential direction of the suspension rod. The design of the stiffening ribs can enhance the connection strength between the enlarged-surface circular tube and the first suspension rod, improve the load-bearing capacity of the overall structure, and ensure the stability and safety of the structure during use. A plurality of stiffening ribs are provided, and the plurality of stiffening ribs are evenly distributed circumferentially to ensure the balance and stability of the overall structure.

[0014] Furthermore, a positioning convex portion is provided at the bottom end of the sleeve, and a positioning groove is provided on the small end face of the tapered head. The positioning convex portion and the positioning groove are in one-to-one correspondence and match. The positioning convex portion is clamped in the corresponding positioning groove. The precise cooperation and clamping of the positioning groove and the positioning convex portion enable the sleeve and the tapered head to be quickly and accurately positioned during installation, reduce the installation difficulty, reduce the error accumulation during the installation process, improve the work efficiency. After precise positioning, the sleeve and the tapered head are welded and fixed to ensure the connection strength. Thus, precise positioning also helps to reduce the deformation caused by position deviation during the welding process, which is beneficial to the subsequent welding and fixing operation and improves the connection reliability and safety.

[0015] Furthermore, a positioning insertion ring is provided at the top end of the enlarged-surface circular tube. The positioning insertion ring matches the inner diameter of the first suspension rod. The positioning insertion ring is inserted into the inner diameter of the first suspension rod. The positioning insertion ring is inserted into the inner diameter of the first suspension rod to achieve precise plug-in limit between the enlarged-surface circular tube and the first suspension rod, realize the rapid assembly and positioning of the two, reduce the installation error, improve the overall structure accuracy, reduce the installation difficulty, and the positioning insertion ring increases the contact area between the enlarged-surface circular tube and the first suspension rod, enhancing the strength of the overall structure after assembly.

[0016] The utility model has the following beneficial effects due to the adoption of the above technical solutions:

[0017] The structure design of the utility model is ingenious and reasonable, with strong practicability. The installation component realizes the installation and positioning with the bolt ball through the connecting bolt and the connecting hole, and the assembly is convenient and simple. Compared with the design in the prior art where the suspender is directly welded and fixed to the bolt ball, the bolt connection adopted in this application can facilitate the actual assembly, improve the work efficiency, design the whole suspender in the prior art into the split suspender one and suspender two, and connect the suspender two and the suspender one with an enlarged surface round tube. The enlarged surface round tube increases the welding contact area between the suspender two and the installation component, allowing a certain installation error range when the suspender two is welded and assembled with the installation component, reducing the requirement for installation accuracy, lowering the installation difficulty, and thus effectively improving the overall assembly efficiency. All parts of the device are finished products, the operation process is convenient and concise, and the device uses green steel and can be reused. The whole design principle is clear, the implementation operation is easy, and the control requirement is general, which is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further describes the present utility model with reference to the drawings:

[0019] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present utility model;

[0020] Figure 2 It is a schematic internal sectional structure diagram of the installation component connecting the bolt ball and the suspender two in Embodiment 1 of the present utility model;

[0021] Figure 3 It is a schematic internal sectional structure diagram of the installation component connecting the bolt ball and the suspender two in Embodiment 2 of the present utility model;

[0022] Figure 4 For Figure 3 It is a partial enlarged structural diagram at I in

[0023] In the figure: 1 - installation component; 2 - sleeve; 3 - connecting bolt; 4 - suspender one; 5 - enlarged surface round tube; 6 - connecting handrail; 7 - cutting surface; 8 - cone head; 9 - first reduced chamfer; 10 - second reduced chamfer; 11 - connecting support plate; 12 - fixing bolt; 13 - stiffening rib; 14 - positioning convex part; 15 - positioning groove; 16 - positioning insertion ring; 17 - bolt ball; 18 - suspender two; 19 - connecting piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] As Figure 1 And Figure 2As shown in the figure, this is the first embodiment of the utility model, a suspension rod device for installing an operation and maintenance passage of an offshore photovoltaic grid frame, including an installation component 1 and a suspension rod two 18. The installation component 1 includes a sleeve 2, a connecting bolt 3 and a suspension rod one 4. The sleeve 2 is arranged on the suspension rod one 4. The outer wall of the sleeve 2 is a polygonal structure. Designing the outer wall of the sleeve 2 as a polygonal structure can improve the structural stability and bearing capacity of the sleeve 2. There is a connecting hole on the bolt ball 17. The tail end of the connecting bolt 3 passes through the suspension rod one 4 and the sleeve 2 and is connected in the connecting hole to realize the connection and fixation of the installation component 1 and the bolt ball 17. A widened surface round tube 5 is welded and fixed at the bottom end of the suspension rod one 4. The top end of the suspension rod two 18 is welded and fixed to the widened surface round tube 5. The suspension rod two 18 is fixedly connected to the connecting handrail 6 through a connecting piece 19. The overall structure is ingeniously and reasonably designed and has strong practicability. The installation component 1 realizes the installation and positioning with the bolt ball 17 through the cooperation of the connecting bolt 3 and the connecting hole. The assembly is convenient and simple. Moreover, the widened surface round tube 5 is used to connect the suspension rod two 18 and the suspension rod one 4. The widened surface round tube 5 increases the welding contact area between the suspension rod two 18 and the installation component 1, allowing a certain installation error range when the suspension rod two 18 and the installation component 1 are welded and assembled, reducing the requirement for installation accuracy, lowering the installation difficulty, and thus effectively improving the overall assembly efficiency.

[0025] There is a cut surface 7 on the bolt ball 17, and the connecting hole is arranged on the cut surface 7. The top end of the sleeve 2 abuts and fits with the cut surface 7. The design of the cut surface 7 can facilitate the processing of the connecting hole. The connecting hole is a threaded hole, which cooperates with the connecting bolt 3 to realize the connection and fixation of the installation component 1 and the bolt ball 17. At the same time, the cut surface 7 can also ensure that the contact surface between the sleeve 2 and the bolt ball 17 is a plane, facilitating the actual alignment and installation, and ensuring the firmness and stability of the connection after assembly.

[0026] There is a tapered head 8 between the suspension rod one 4 and the sleeve 2. The large end of the tapered head 8 is welded and fixed to the suspension rod one 4, and the small end of the tapered head 8 is welded and fixed to the sleeve 2. The design is ingenious and reasonable. The design of the tapered head 8 can disperse the stress at the connection, improve the connection stability and durability. During actual installation, the tail end of the connecting bolt 3 passes through the tapered head 8 and the sleeve 2 and is screwed into the connecting hole. The head of the connecting bolt 3 is limited within the tapered head 8 to ensure the connection tightness and firmness. The tapered head 8 is fixedly connected to the suspension rod one 4 and the sleeve 2 by welding, effectively ensuring the overall strength after assembly and improving the overall bearing capacity.

[0027] The bottom end of the first hanger rod 4 is provided with a reduced opening chamfer 9 of an integrally formed structure. The integrally formed design facilitates actual processing and forming. The reduced opening chamfer 9 is fixedly welded to the top surface of the expanded surface round tube 5. The design of the reduced opening chamfer 9 can disperse the stress concentration phenomenon at the connection between the first hanger rod 4 and the expanded surface round tube 5, enhancing the connection strength and stability. The top end of the second hanger rod 18 is provided with a reduced opening chamfer 10 of an integrally formed structure. The integrally formed design facilitates actual processing and forming. The reduced opening chamfer 10 is fixedly welded to the bottom surface of the expanded surface round tube 5. The design of the reduced opening chamfer 10 can disperse the stress concentration phenomenon at the connection between the second hanger rod 18 and the expanded surface round tube 5, enhancing the connection strength and stability.

[0028] The connecting member 19 includes a connecting support plate 11 and a fixing bolt 12. A plurality of connecting support plates 11 are fixedly welded to the second hanger rod 18 along its length direction. The connecting support plate 11 is fixedly connected to the connecting handrail 6 through the fixing bolt 12. The plurality of connecting support plates 11 are preferably designed to be evenly distributed to ensure the structural balance and stability. The connecting support plate 11 is fixedly welded to the second hanger rod 18 to form a whole, ensuring the firmness and reliability of the overall structure. The connecting support plate 11 then cooperates with the fixing bolt 12 to fix the second hanger rod 18 to the connecting handrail 6, which is convenient and simple for assembly and disassembly, and ensures the firmness and reliability of the assembly of the second hanger rod 18 and the operation and maintenance passage. The assembly of the second hanger rod 18 and the connecting handrail 6 is carried out on the ground. After the second hanger rod 18 and the operation and maintenance passage are connected into a whole, the whole is hoisted and fixedly welded to the installation component 1 through the second hanger rod 18. And during welding, due to the design of the expanded surface round tube 5, the welding contact area between the second hanger rod 18 and the installation component 1 is increased, so that a certain installation error range is allowed when the second hanger rod 18 and the installation component 1 are welded and assembled, reducing the requirement for installation accuracy, thereby reducing the installation difficulty.

[0029] Such as Figure 3 And Figure 4As shown in the figure, this is the second embodiment of the present utility model, a boom device for installing an operation and maintenance passage of an offshore photovoltaic grid framework, including an installation component 1 and a second boom 18. The installation component 1 includes a sleeve 2, a connecting bolt 3 and a first boom 4. The sleeve 2 is arranged on the first boom 4. The outer wall of the sleeve 2 is a polygonal structure. Designing the outer wall of the sleeve 2 as a polygonal structure can improve the structural stability and load-bearing capacity of the sleeve 2. There is a connecting hole on the bolt ball 17. The tail end of the connecting bolt 3 passes through the first boom 4 and the sleeve 2 and is connected in the connecting hole to realize the connection and fixation of the installation component 1 and the bolt ball 17. A widened surface round tube 5 is welded and fixed at the bottom end of the first boom 4. The top end of the second boom 18 is welded and fixed to the widened surface round tube 5. The second boom 18 is fixedly connected to the connecting handrail 6 through a connecting piece 19. The overall structure is ingeniously and reasonably designed, with strong practicability. The installation component 1 realizes the installation and positioning with the bolt ball 17 through the cooperation of the connecting bolt 3 and the connecting hole, which is convenient and simple to assemble. And the widened surface round tube 5 is used to connect the second boom 18 and the first boom 4. The widened surface round tube 5 increases the welding contact area between the second boom 18 and the installation component 1, allowing a certain installation error range when the second boom 18 and the installation component 1 are welded and assembled, reducing the requirement for installation accuracy, lowering the installation difficulty, and thus effectively improving the overall assembly efficiency.

[0030] There is a cut surface 7 on the bolt ball 17, and the connecting hole is arranged on the cut surface 7. The top end of the sleeve 2 abuts and fits with the cut surface 7. The design of the cut surface 7 can facilitate the processing of the connecting hole. The connecting hole is a threaded hole, which cooperates with the connecting bolt 3 to realize the connection and fixation of the installation component 1 and the bolt ball 17. At the same time, the cut surface 7 can also ensure that the contact surface between the sleeve 2 and the bolt ball 17 is a plane, which is convenient for actual alignment and installation, and ensures the firmness and stability of the connection after assembly.

[0031] There is a tapered head 8 between the first boom 4 and the sleeve 2. The large end of the tapered head 8 is welded and fixed to the first boom 4, and the small end of the tapered head 8 is welded and fixed to the sleeve 2. The design is ingenious and reasonable. The design of the tapered head 8 can disperse the stress at the connection, improve the connection stability and durability. During actual installation, the tail end of the connecting bolt 3 passes through the tapered head 8 and the sleeve 2 and is screwed into the connecting hole. The head of the connecting bolt 3 is limited in the tapered head 8 to ensure the connection tightness and firmness. The tapered head 8 is fixedly connected to the first boom 4 and the sleeve 2 by welding, effectively ensuring the overall strength after assembly and improving the overall load-bearing capacity.

[0032] The bottom end of the first suspension rod 4 is provided with a necking chamfer 9 of an integrally formed structure. The integrally formed design can facilitate actual processing and forming. The necking chamfer 9 is welded and fixed to the top surface of the enlarged surface round tube 5. The design of the necking chamfer 9 can disperse the stress concentration phenomenon at the connection between the first suspension rod 4 and the enlarged surface round tube 5, and enhance the strength and stability of the connection. The top end of the second suspension rod 18 is provided with a necking chamfer 10 of an integrally formed structure. The integrally formed design can facilitate actual processing and forming. The necking chamfer 10 is welded and fixed to the bottom surface of the enlarged surface round tube 5. The design of the necking chamfer 10 can disperse the stress concentration phenomenon at the connection between the second suspension rod 18 and the enlarged surface round tube 5, and enhance the strength and stability of the connection.

[0033] The connecting piece 19 includes a connecting support plate 11 and a fixing bolt 12. A plurality of connecting support plates 11 are welded and fixed along the length direction of the second suspension rod 18. The connecting support plates 11 are fixedly connected to the connecting handrail 6 through the fixing bolts 12. The plurality of connecting support plates 11 are preferably designed to be evenly distributed to ensure the balance and stability of the structure. The connecting support plates 11 are welded and fixed to the second suspension rod 18 to form a whole, ensuring the firmness and reliability of the overall structure. The connecting support plates 11 are then combined with the fixing bolts 12 to fix the second suspension rod 18 to the connecting handrail 6. The assembly and disassembly are convenient and simple, and ensure the firmness and reliability of the assembly of the second suspension rod 18 and the operation and maintenance passage. The assembly of the second suspension rod 18 and the connecting handrail 6 is carried out on the ground. After the second suspension rod 18 and the operation and maintenance passage are connected into a whole, the whole is hoisted and welded and fixed to the installation component 1 through the second suspension rod 18. And during welding, due to the design of the enlarged surface round tube 5, the welding contact area between the second suspension rod 18 and the installation component 1 is increased, so that a certain installation error range is allowed when the second suspension rod 18 and the installation component 1 are welded and assembled, the requirement for installation accuracy is reduced, and thus the installation difficulty is reduced.

[0034] Stiffening ribs 13 are welded and fixed between the enlarged surface round tube 5 and the first suspension rod 4. The stiffening ribs 13 are evenly distributed along the circumferential direction of the first suspension rod 4. The design of the stiffening ribs 13 can enhance the connection strength between the enlarged surface round tube 5 and the first suspension rod 4, improve the load-bearing capacity of the overall structure, ensure the stability and safety of the structure during use. A plurality of stiffening ribs 13 are provided, and the plurality of stiffening ribs 13 are evenly distributed in the circumferential direction to ensure the balance and stability of the overall structure.

[0035] The bottom end of the sleeve 2 is provided with a positioning convex portion 14, and the small end surface of the tapered head 8 is provided with a positioning groove 15. The positioning convex portion 14 and the positioning groove 15 are in one-to-one correspondence and matching. The positioning convex portion 14 is clamped in the corresponding positioning groove 15. The positioning groove 15 and the positioning convex portion 14 are precisely matched and clamped, so that the sleeve 2 and the tapered head 8 can be quickly and accurately positioned during installation, reducing the installation difficulty, reducing the error accumulation during the installation process, improving the work efficiency. After precise positioning, the sleeve 2 and the tapered head 8 are welded and fixed to ensure the connection strength. Thus, precise positioning also helps to reduce the deformation caused by position deviation during the welding process, facilitating the subsequent welding and fixing operation, and improving the connection reliability and safety.

[0036] At the top of the surface-expanding circular tube 5, there is a positioning insertion ring 16, which matches the inner diameter of the first hanger rod 4. The positioning insertion ring 16 is inserted into the inner diameter of the first hanger rod 4. The positioning insertion ring 16 is inserted into the inner diameter of the first hanger rod 4 in a matching manner, realizing the precise insertion and limitation between the surface-expanding circular tube 5 and the first hanger rod 4, achieving the rapid assembly and positioning of the two, reducing the installation error, improving the overall structural accuracy, reducing the installation difficulty, and the positioning insertion ring 16 increases the contact area between the surface-expanding circular tube 5 and the first hanger rod 4, enhancing the overall structural strength after assembly. In this application, the installation component 1 is assembled into a whole on the ground. During the assembly process, through the cooperation of the positioning convex part 14 and the positioning groove 15, and the cooperation of the positioning insertion ring 16 and the inner diameter of the first hanger rod 4, when the sleeve 2, the cone head 8, the first hanger rod 4, and the connecting circular tube are assembled, they can be precisely positioned to ensure the installation accuracy, thereby ensuring the overall structural strength and stability of the installation component 1 after the final welding and assembly.

[0037] The structure of the present utility model is ingeniously and reasonably designed and has strong practicability. The installation component 1 realizes the installation and positioning with the bolt ball 17 through the connecting bolt 3 and the connecting hole, and the assembly is convenient and simple. Compared with the design in the prior art where the hanger rod is directly welded and fixed to the bolt ball 17, in this application, bolt connection is adopted, which can facilitate the actual assembly, improve the work efficiency. The whole hanger rod in the prior art is designed into a split first hanger rod 4 and second hanger rod 18, and the surface-expanding circular tube 5 is used to connect the second hanger rod 18 and the first hanger rod 4. The surface-expanding circular tube 5 increases the welding contact area between the second hanger rod 18 and the installation component 1, allowing a certain installation error range when the second hanger rod 18 and the installation component 1 are welded and assembled, reducing the requirement for installation accuracy, and reducing the installation difficulty, thereby effectively improving the overall assembly efficiency. All the parts of this device are finished products, the operation process is convenient and concise, and the device uses green steel and can be reused. The whole design principle is clear, the implementation operation is easy, and the control requirements are general, which is easy to promote.

[0038] The above are only specific embodiments of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent replacements, or modifications made based on the present utility model to achieve substantially the same technical effects are all covered by the protection scope of the present utility model.

Claims

1. A boom device for installing an operation and maintenance passage of an offshore photovoltaic grid frame, characterized in that Including: An installation component, the installation component includes a sleeve, a connecting bolt and a first suspender. The sleeve is arranged on the first suspender. There is a connecting hole on the bolt ball. The tail end of the connecting bolt passes through the first suspender and the sleeve and is connected in the connecting hole to realize the connection and fixation between the installation component and the bolt ball; A second suspender. A widened surface circular tube is welded and fixed at the bottom end of the first suspender. The top end of the second suspender is welded and fixed to the widened surface circular tube. The second suspender is fixedly connected to the connecting handrail through a connecting piece.

2. The boom device for installing the maintenance passage of the offshore photovoltaic grid frame according to claim 1, characterized in that: There is a cut surface on the bolt ball, the connecting hole is arranged on the cut surface, and the top end of the sleeve abuts and fits with the cut surface.

3. The boom device for installing the maintenance channel of the offshore photovoltaic grid frame according to claim 1, wherein: There is a tapered head between the first suspender and the sleeve. The large end of the tapered head is welded and fixed to the first suspender, and the small end of the tapered head is welded and fixed to the sleeve.

4. A suspension rod device for installing an operation and maintenance passage of an offshore photovoltaic grid frame according to claim 1, characterized in that: The outer wall of the sleeve is a polygonal structure.

5. The boom device for installing the maintenance passage of the offshore photovoltaic grid frame according to claim 1, characterized in that: There is a one-piece formed reduced opening chamfer one at the bottom end of the first suspender, and the reduced opening chamfer one is welded and fixed to the top surface of the widened surface circular tube.

6. The boom device for installing the maintenance channel of the offshore photovoltaic grid frame according to claim 1, characterized in that: There is a one-piece formed reduced opening chamfer two at the top end of the second suspender, and the reduced opening chamfer two is welded and fixed to the bottom surface of the widened surface circular tube.

7. A boom device for installing an operation and maintenance passage of an offshore photovoltaic grid frame, characterized in that: The connecting piece includes a connecting support plate and a fixing bolt. A plurality of the connecting support plates are welded and fixed on the second suspender along its length direction. The connecting support plate is fixedly connected to the connecting handrail through the fixing bolt.

8. A boom device for installing an operation and maintenance passage of an offshore photovoltaic grid frame, characterized in that: There are stiffening ribs welded and fixed between the widened surface circular tube and the first suspender, and the stiffening ribs are evenly distributed along the circumferential direction of the first suspender.

9. The hanging rod device for installing the operation and maintenance passage of the offshore photovoltaic grid frame according to claim 3, wherein: There is a positioning convex part at the bottom end of the sleeve, and a positioning groove is arranged on the small end surface of the tapered head. The positioning convex part and the positioning groove are in one-to-one correspondence and matching, and the positioning convex part is clamped in the corresponding positioning groove.

10. The boom device for installing the maintenance passage of the offshore photovoltaic grid frame according to claim 1, characterized in that: There is a positioning insertion ring at the top end of the widened surface circular tube. The positioning insertion ring is matched with the inner diameter of the first suspender, and the positioning insertion ring is inserted into the inner diameter of the first suspender.

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