Net rack connecting unit and net rack

Abstract

The utility model relates to the technical field of offshore steel structures, and discloses a net rack connecting unit and a net rack, which comprise node balls, a plurality of groups of first connecting components and a plurality of groups of second connecting components, the multiple first connecting assemblies are sequentially arranged at intervals around the periphery of the nodal point ball. The first connecting assembly comprises a first connecting rod and a first connecting lug plate; one end of the first connecting rod is welded with the node ball, and the other end of the first connecting rod is fixedly connected with a first connecting lug plate; the second connecting assembly is arranged between two adjacent node balls and comprises a second connecting rod and two groups of second connecting lug plates; the two ends of the second connecting rod are fixedly connected with the two sets of second connecting lug plates respectively, and the second connecting lug plates are detachably connected with the first connecting lug plates, the installation technology is simple, convenience and rapidness are achieved, high-altitude welding operation is avoided, the assembling speed is increased, the construction period is shortened, the occupied space is smaller, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore steel structures, in particular to a grid connection unit and a grid. Background Art

[0002] Grids are mostly used for road building structures, such as canopies, stadiums, exhibition halls, etc. The traditional connection method of grid structures is welding. When grid structures are used in offshore projects, due to the long processing and manufacturing cycle of welded grids and the high cost of offshore construction ships and machinery, slow grid processing and manufacturing will lead to low utilization of ship machinery and increased construction costs. In addition, since the grid after welding is a three-dimensional space structure, if multiple working surfaces are deployed at the same time to solve the manufacturing speed problem, the construction site area will be greatly increased, and the supporting equipment and personnel will also be greatly increased. Utility Model Content

[0003] In view of this, the utility model provides a grid connection unit and a grid to solve the problems of long processing and manufacturing cycle of welding grids, high cost of offshore construction ship machinery, slow processing and manufacturing of grids leading to low utilization rate of ship machinery and increased construction costs.

[0004] In the first aspect, the utility model provides a grid connection unit, including a node ball, multiple groups of first connection components and multiple groups of second connection components; the multiple groups of first connection components are arranged in sequence around the circumference of the node ball; the first connection component includes a first connecting rod and a first connecting ear plate; the axis of the first connecting rod is located in the radial direction of the node ball, one end is welded to the node ball, and the other end is fixedly connected to the first connecting ear plate; the second connection component is arranged between two adjacent node balls, including a second connecting rod and two groups of second connecting ear plates; the two ends of the second connecting rod are respectively fixedly connected to the two groups of the second connecting ear plates, and the second connecting ear plate is detachably connected to the first connecting ear plate.

[0005] Beneficial effects: Since the axis of the first connecting rod is located in the radial direction of the node ball, the force transmission is clear, which ensures that the forces of multiple first connecting rods converge at one point, no bending moment is generated, and the force is reasonable; since the first connecting ear plate and the second connecting ear plate are detachably connected, the welding connection between the node ball and the first connecting component can be completed on the ground in the factory or at the construction site, which is convenient for acceptance and easier to control product quality; when working at high altitude at the construction site, it is only necessary to complete the splicing of the first connecting component and the second connecting component, and the installation process is simple, convenient and fast, without high-altitude welding operations; compared with welded grids, the present application has low requirements on the stability of rods and nodes during high-altitude assembly. During the high-altitude assembly process, there is no need to consider issues such as the position and angle of the rods, and the technical requirements for workers are relatively low, which improves the assembly speed and saves construction period; and due to the fast assembly speed, under the same construction period and delivery speed requirements, fewer working surfaces are required, less space is occupied, and costs are reduced.

[0006] In an optional embodiment, it also includes a first anti-corrosion layer and a second anti-corrosion layer; the first anti-corrosion layer is coated on the surface of the node ball, the surface of the first connection component, and the weld between the node ball and the first connection component; the second anti-corrosion layer is coated on the surface of the second connection component.

[0007] Beneficial effects: Since offshore steel structures have high requirements for corrosion protection, and the corrosion protection coating at the weld node is destroyed after welding, it does not meet the corrosion protection conditions; by setting the first corrosion protection layer, the surface of the node ball, the surface of the first connection component, and the weld between the node ball and the first connection component can all have a good corrosion protection effect; by setting the second corrosion protection layer, the surface of the second connection component can have a good corrosion protection effect; the first corrosion protection layer and the second corrosion protection layer can be coated on the ground in the factory or construction site, which reduces the time for high-altitude operations and is more convenient and quick. And because the first connection component and the second connection component are detachably connected, the integrity of the first corrosion protection layer and the second corrosion protection layer can also be maintained. Compared with the welding connection, the secondary corrosion protection process is reduced, the difficulty of high-altitude operations is reduced, the installation time is saved, the construction efficiency is improved, and the construction cost is reduced.

[0008] In an optional embodiment, the first connecting assembly further includes a first end plate, one side of the first end plate is connected to the first connecting rod, and the other side of the first end plate is connected to the first connecting ear plate.

[0009] Beneficial effect: By setting the first end plate, the connection between the first connecting ear plate and the first connecting rod can be made stronger, the bearing capacity of the first connecting ear plate is improved, the overall strength of the first connecting assembly is enhanced, and the reliability of the connection of the grid connection unit is further enhanced.

[0010] In an optional embodiment, the first end plate is a steel plate.

[0011] Beneficial effects: By setting the first steel plate as a steel plate, it has higher strength, higher rigidity and stability, and can withstand a larger load; it has excellent tensile strength, compressive strength and bending strength; it has excellent corrosion resistance and can be used for a long time in harsh environments without being affected by corrosion, rust, etc., and can be suitable for corrosive environments such as offshore engineering.

[0012] In an optional embodiment, the second connecting assembly further includes two second end plates, which are respectively arranged at both ends of the second connecting rod, one side of the second end plate is connected to the second connecting rod, and the other side is connected to the second connecting ear plate.

[0013] Beneficial effect: By setting the second end plate, the connection between the second connecting ear plate and the second connecting rod can be made stronger, the bearing capacity of the second connecting ear plate is improved, the overall strength of the second connecting assembly is enhanced, and the reliability of the connection of the grid connection unit is further enhanced.

[0014] In an optional embodiment, the second end plate is a steel plate.

[0015] Beneficial effects: By setting the second steel plate as a steel plate, it has higher strength, higher rigidity and stability, and can withstand greater loads; it has excellent tensile strength, compressive strength and bending strength; it has excellent corrosion resistance and can be used for a long time in harsh environments without being affected by corrosion, rust, etc., and can be suitable for corrosive environments such as offshore engineering.

[0016] In an optional embodiment, the first connecting ear plate includes two first ear plates, the two first ear plates are relatively arranged on both sides of the first end plate, the two first ear plates are parallel to each other, and are both connected to the second connecting ear plate.

[0017] Beneficial effect: The provision of two first ear plates can increase the contact area between the first connecting ear plate and the second connecting ear plate, making the connection tighter, thereby ensuring the stability of the grid structure while reducing the influence of the grid structure's own weight and wind force on the grid structure.

[0018] In an optional embodiment, the second connecting ear plate includes two second ear plates, the two second ear plates are relatively arranged on both sides of the second end plate, and the second ear plate is parallel to the first ear plate; the distance between the two second ear plates is smaller than the distance between the two first ear plates.

[0019] Beneficial effect: The arrangement of the two second ear plates can increase the contact area between the first connecting ear plate and the second connecting ear plate, making the connection tighter, thereby ensuring the stability of the grid structure while reducing the influence of the grid structure's deadweight and wind force on the grid structure. The spacing between the two second ear plates is smaller than the spacing between the two first ear plates, which facilitates the misalignment of the first ear plate and the second ear plate, avoids interference between the first ear plate and the second ear plate, and realizes the mutual connection between the first ear plate and the second ear plate.

[0020] In an optional embodiment, a first pin hole is provided on the first ear plate, and a second pin hole is provided on the second ear plate; the pin shaft passes through a first pin hole, a second pin hole, another second pin hole and another first pin hole in sequence.

[0021] Beneficial effects: by setting the first pin hole and the second pin hole, it is convenient to connect the first ear plate and the second ear plate through the pin shaft, and it is easy to operate, easy to install and disassemble, saving construction time and improving the installation efficiency of the grid; and the first ear plate and the second ear plate are hingedly connected, and the structure is simple to bear force.

[0022] In a second aspect, the utility model also provides a grid, comprising a plurality of the above-mentioned grid connection units.

[0023] Beneficial effect: Because the grid includes a grid connection unit, it has the same effect as the grid connection unit and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 A schematic diagram of the structure of the grid of an embodiment of the utility model;

[0026] Figure 2 This is a front view of a grid connection unit according to an embodiment of the utility model;

[0027] Figure 3 This is a schematic structural diagram of a grid connection unit according to an embodiment of the utility model;

[0028] Figure 4 This is a structural schematic diagram of the connection between the node ball and the first connecting component of an embodiment of the utility model;

[0029] Figure 5 This is a schematic structural diagram of the connection between the first end plate and the first ear plate of an embodiment of the utility model;

[0030] Figure 6 This is a schematic structural diagram of a second connecting assembly according to an embodiment of the utility model;

[0031] Figure 7 This is a schematic structural diagram of the connection between the second end plate and the second ear plate of an embodiment of the utility model.

[0032] Description of reference numerals:

[0033] 1. Node ball; 2. First connecting assembly; 21. First connecting rod; 22. First connecting ear plate; 221. First ear plate; 222. First pin hole; 23. First end plate; 3. Second connecting assembly; 31. Second connecting rod; 32. Second connecting ear plate; 321. Second ear plate; 322. Second pin hole; 33. Second end plate; 4. Pin shaft. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0035] Combine the following Figures 1 to 7 , describing an embodiment of the utility model.

[0036] According to an embodiment of the utility model, on the one hand, a grid connection unit is provided, comprising a node ball 1, multiple groups of first connection components 2 and multiple groups of second connection components 3; the multiple groups of first connection components 2 are arranged in sequence around the outer circumference of the node ball 1; the first connection component 2 comprises a first connection rod 21 and a first connection ear plate 22; the axis of the first connection rod 21 is located in the radial direction of the node ball 1, one end is welded to the node ball 1, and the other end is fixedly connected to the first connection ear plate 22; the second connection component 3 is arranged between two adjacent node balls 1, comprising a second connection rod 31 and two groups of second connection ear plates 32; the two ends of the second connection rod 31 are respectively fixedly connected to the two groups of the second connection ear plates 32, and the second connection ear plates 32 are detachably connected to the first connection ear plates 22.

[0037] Since the axis of the first connecting rod 21 is located in the radial direction of the node ball 1, the force transmission is clear, which ensures that the forces of multiple first connecting rods 21 converge at one point, no bending moment is generated, and the force is reasonable; since the first connecting ear plate 22 and the second connecting ear plate 32 are detachably connected, the welding connection between the node ball 1 and the first connecting component 2 can be completed on the ground in the factory or at the construction site, which is convenient for acceptance and the product quality is easier to control; when working at high altitude at the construction site, it is only necessary to complete the splicing of the first connecting component 2 and the second connecting component 3, and the installation process is simple, convenient and fast, without high-altitude welding operations; compared with the welded grid, the present application has low requirements on the stability of the rods and nodes during high-altitude assembly. During the high-altitude assembly process, there is no need to consider the position and angle of the rods, and the technical requirements for workers are relatively low, which improves the assembly speed and saves construction period; and due to the fast assembly speed, under the same construction period and delivery speed requirements, fewer working surfaces are required, less space is occupied, and the cost is reduced.

[0038] like Figure 1 As shown, it is a two-dimensional plane schematic diagram of the grid, and the basic unit connecting adjacent nodes is a triangle. In actual construction, the grid is a three-dimensional structure, and the basic unit structure formed by such node connection includes but is not limited to triangular pyramids, triangular prisms, cubes, etc.

[0039] In a specific implementation, the node ball 1 is a hollow thin-walled structure, and whether to add ribs inside the sphere can be selected according to the strength requirements in actual construction.

[0040] Specifically, the first connecting rod 21 and the second connecting rod 31 are both round tubes.

[0041] In one embodiment, it also includes a first anti-corrosion layer and a second anti-corrosion layer; the first anti-corrosion layer is coated on the surface of the node ball 1, the surface of the first connection component 2, and the weld between the node ball 1 and the first connection component 2; the second anti-corrosion layer is coated on the surface of the second connection component 3.

[0042] Since offshore steel structures have high requirements for corrosion protection, and the corrosion protection coating at the weld nodes is destroyed after welding, and the corrosion protection conditions are not met; by setting the first corrosion protection layer, the surface of the node ball 1, the surface of the first connection component 2, and the weld between the node ball 1 and the first connection component 2 can all have a good corrosion protection effect; by setting the second corrosion protection layer, the surface of the second connection component 3 can have a good corrosion protection effect; the first corrosion protection layer and the second corrosion protection layer can be coated on the ground in the factory or construction site, which reduces the time for high-altitude operations and is more convenient and quick. And because the first connection component 2 and the second connection component 3 are detachably connected, the integrity of the first corrosion protection layer and the second corrosion protection layer can also be maintained. Compared with welding connection, the secondary corrosion protection process is reduced, the difficulty of high-altitude operations is reduced, the installation time is saved, the construction efficiency is improved, and the construction cost is reduced.

[0043] In one embodiment, the first connecting assembly 2 further includes a first end plate 23 , one side of the first end plate 23 is connected to the first connecting rod 21 , and the other side of the first end plate 23 is connected to the first connecting ear plate 22 .

[0044] By setting the first end plate 23, the connection between the first connecting ear plate 22 and the first connecting rod 21 can be made more secure, the bearing capacity of the first connecting ear plate 22 is improved, the overall strength of the first connecting assembly 2 is enhanced, and the reliability of the connection of the grid connection unit is further enhanced.

[0045] In a specific implementation, the first end plate 23 may be in various shapes such as square, round, etc. Specifically, the center of the first end plate 23 is located on the axis of the first connecting rod 21 .

[0046] In one embodiment, the first end plate 23 is a steel plate.

[0047] By setting the first steel plate as a steel plate, it has higher strength, higher rigidity and stability, and can withstand a larger load; it has excellent tensile strength, compressive strength and bending strength; it has excellent corrosion resistance and can be used for a long time in harsh environments without being affected by corrosion, rust, etc., and can be suitable for corrosive environments such as offshore engineering.

[0048] In one embodiment, the second connecting assembly 3 further includes two second end plates 33 , which are respectively arranged at both ends of the second connecting rod 31 , one side of the second end plate 33 is connected to the second connecting rod 31 , and the other side is connected to the second connecting ear plate 32 .

[0049] By providing the second end plate 33, the connection between the second connecting ear plate 32 and the second connecting rod 31 can be made more secure, the bearing capacity of the second connecting ear plate 32 is improved, the overall strength of the second connecting assembly 3 is enhanced, and the reliability of the connection of the grid connection unit is further enhanced.

[0050] In a specific implementation, the second end plate 33 may be in various shapes such as square, round, etc. Specifically, the center of the second end plate 33 is located on the axis of the second connecting rod 31 .

[0051] In one embodiment, the second end plate 33 is a steel plate.

[0052] By setting the second steel plate as a steel plate, it has higher strength, higher rigidity and stability, and can withstand greater loads; it has excellent tensile strength, compressive strength and bending strength; it has excellent corrosion resistance and can be used for a long time in harsh environments without being affected by corrosion, rust, etc., and can be suitable for corrosive environments such as offshore engineering.

[0053] In one embodiment, the first connecting ear plate 22 includes two first ear plates 221 , which are relatively arranged on both sides of the first end plate 23 , are parallel to each other, and are both connected to the second connecting ear plate 32 .

[0054] The provision of the two first ear plates 221 can increase the contact area between the first connecting ear plate 22 and the second connecting ear plate 32, making the connection tighter, thereby reducing the influence of the deadweight of the grid structure and wind force on the grid structure while ensuring the stability of the grid structure.

[0055] Specifically, the two first ear plates 221 are symmetrically arranged on both sides of the first end plate 23, ensuring that no bending moment is generated when the force on the first ear plates 221 is transmitted to the first connecting rod 21, and the force is reasonable, ensuring that the forces of multiple first connecting rods 21 converge at one point.

[0056] In one embodiment, the second connecting ear plate 32 includes two second ear plates 321, and the two second ear plates 321 are relatively arranged on both sides of the second end plate 33, and the second ear plates 321 are parallel to the first ear plates 221; the distance between the two second ear plates 321 is smaller than the distance between the two first ear plates 221.

[0057] The provision of the two second ear plates 321 can increase the contact area between the first connecting ear plate 22 and the second connecting ear plate 32, making the connection tighter, thereby ensuring the stability of the grid structure while reducing the influence of the grid structure's deadweight and wind force on the grid structure. The spacing between the two second ear plates 321 is smaller than the spacing between the two first ear plates 221, which facilitates the misalignment of the first ear plate 221 and the second ear plate 321, avoiding interference between the first ear plate 221 and the second ear plate 321, and realizing the mutual connection between the first ear plate 221 and the second ear plate 321.

[0058] Specifically, the two second ear plates 321 are symmetrically arranged on both sides of the first end plate 23, which ensures that no bending moment is generated when the force on the second ear plates 321 is transmitted to the second connecting rod 31, and the force is reasonable.

[0059] In one embodiment, the first ear plate 221 is provided with a first pin hole 222, and the second ear plate 321 is provided with a second pin hole 322; the pin shaft 4 passes through a first pin hole 222, a second pin hole 322, another second pin hole 322 and another first pin hole 222 in sequence.

[0060] By setting the first pin hole 222 and the second pin hole 322, it is convenient to connect the first ear plate 221 and the second ear plate 321 through the pin shaft 4, and it is easy to operate, easy to install and disassemble, saving construction time and improving the installation efficiency of the grid; and the first ear plate 221 and the second ear plate 321 are hingedly connected, and the structure is simple in force.

[0061] According to an embodiment of the present invention, on the other hand, a grid is provided, comprising a plurality of the above-mentioned grid connection units.

[0062] In a specific implementation, the grid node is assembled first, and after the two sides of the first end plate 23 are welded to one end of the first connecting rod 21 and the first connecting ear plate 22, the other end of the first connecting rod 21 is welded to the node ball 1; after the multiple groups of first connecting components 2 are welded to the node ball 1, anti-corrosion work such as spraying paint and galvanizing is performed on the surface of the node ball 1, the surface of the first connecting component 2, and the weld between the node ball 1 and the first connecting component 2. After the anti-corrosion work is completed, the single grid node is completed. Then the second connecting component 3 is assembled, and the two ends of the second connecting rod 31 are welded to one side of the two second end plates 33, and then the other end of the second end plate 33 is welded to the second connecting ear plate 32, and then anti-corrosion work such as spraying paint and galvanizing is performed on the surface of the second connecting component 3. After the first anti-corrosion layer and the second anti-corrosion layer are coated, high-altitude assembly work can be performed. Since the grid is generally a double-layer structure, different assembly sequences can be selected according to the conditions of the construction site.

[0063] Specifically, in the first grid assembly method, the first layer of grid is assembled first, and the adjacent grid nodes are connected by the second connecting component 3. After the first layer of grid is completely spliced, the diagonal connecting rods between the first and second layers are assembled, and then the second layer of grid nodes are successively hoisted to the upper end of the diagonal brace by a crane for assembly. After the second layer of grid nodes are fully connected to the diagonal braces between the first and second layers, the second layer of grid nodes are fixed, and the crane can continue to hoist the next grid node. After the adjacent second layer of grid nodes are fixed, the second connecting component 3 is used to connect the two adjacent grid nodes in the horizontal direction, and the above process is repeated until the second layer of grid is installed. Since the crane can only move around the outside of the first layer of grid after the first layer of grid is assembled, this method has a large lifting radius requirement.

[0064] Specifically, in the second grid assembly method, the assembly of the first and second grid layers is carried out simultaneously, and after the two adjacent grid nodes of the first layer are connected by the second connecting component 3, the diagonal braces between the first and second layers of the grid node are installed, and when the diagonal braces corresponding to a grid node of the second layer are all assembled, the grid node of the second layer is installed; that is, whenever a grid node of the second layer meets the assembly conditions, the grid node is installed, and after the grid nodes adjacent to the grid node are also installed, the two adjacent grid nodes are connected in the horizontal direction by the second connecting component 3. This method has low requirements on the lifting radius of the crane.

[0065] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A grid connection unit, characterized in that: include: Node ball (1); A plurality of groups of first connection components (2) are arranged in sequence and at intervals around the periphery of the node ball (1); the first connection components (2) include a first connection rod (21) and a first connection ear plate (22); the axis of the first connection rod (21) is located in the radial direction of the node ball (1), one end of the first connection rod (21) is welded to the node ball (1), and the other end is fixedly connected to the first connection ear plate (22); The second connection assembly (3) is arranged between two adjacent node balls (1), and comprises a second connection rod (31) and two groups of second connection ear plates (32); the two ends of the second connection rod (31) are respectively fixedly connected to the two groups of the second connection ear plates (32), and the second connection ear plates (32) are detachably connected to the first connection ear plates (22).

2. The grid connection unit according to claim 1, characterized in that: Also includes: A first anti-corrosion layer is coated on the surface of the node ball (1), the surface of the first connection component (2), and the weld between the node ball (1) and the first connection component (2); A second anti-corrosion layer is coated on the surface of the second connecting component (3).

3. The grid connection unit according to claim 2, characterized in that: The first connecting assembly (2) further comprises a first end plate (23), one side of the first end plate (23) being connected to the first connecting rod (21), and the other side of the first end plate (23) being connected to the first connecting ear plate (22).

4. The grid connection unit according to claim 3, characterized in that: The first end plate (23) is a steel plate.

5. The grid connection unit according to claim 3 or 4, characterized in that: The second connecting assembly (3) further comprises two second end plates (33), the two second end plates (33) being respectively arranged at the two ends of the second connecting rod (31), one side of the second end plate (33) being connected to the second connecting rod (31), and the other side of the second end plate (33) being connected to the second connecting ear plate (32).

6. The grid connection unit according to claim 5, characterized in that: The second end plate (33) is a steel plate.

7. The grid connection unit according to claim 5, characterized in that: The first connecting ear plate (22) comprises two first ear plates (221), the two first ear plates (221) are arranged oppositely on two sides of the first end plate (23), the two first ear plates (221) are parallel to each other, and are both connected to the second connecting ear plate (32).

8. The grid connection unit according to claim 7, characterized in that: The second connecting ear plate (32) comprises two second ear plates (321), the two second ear plates (321) are arranged oppositely on two sides of the second end plate (33), and the second ear plates (321) are parallel to the first ear plates (221); the distance between the two second ear plates (321) is smaller than the distance between the two first ear plates (221).

9. The grid connection unit according to claim 8, characterized in that: The first ear plate (221) is provided with a first pin hole (222), and the second ear plate (321) is provided with a second pin hole (322); the pin shaft (4) passes through one of the first pin holes (222), one of the second pin holes (322), another of the second pin holes (322), and another of the first pin holes (222) in sequence.

10. A grid frame, characterized in that: It comprises a plurality of grid connection units according to any one of claims 1 to 9.

Images