A device for positioning the angle of a ball node in a net frame

By designing a grid spherical node angle positioning device, efficient assembly of photovoltaic brackets for offshore construction was achieved, solving the problem of time-consuming and labor-intensive hoisting and angle adjustment in existing technologies, improving assembly efficiency and structural stability, and reducing construction costs.

CN224282029UActive Publication Date: 2026-05-26ZHEJIANG ZHONGNAN CONSTR GRP STEEL STRUCTURE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZHONGNAN CONSTR GRP STEEL STRUCTURE CO LTD
Filing Date
2025-04-16
Publication Date
2026-05-26

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    Figure CN224282029U_ABST
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Abstract

This utility model discloses a ball node angle positioning device for a space frame, including a placement frame, a fixing frame, and a connector. The ball node of the space frame is placed on the placement frame, and the fixing frame is snapped into place with the placement frame. The ball node is limited and snapped into the fixing frame by the connector, thus realizing the placement of the ball node. The connector includes a handle and a connecting rod, which are detachably connected. This utility model has a compact structure, is easy to use, and has high assembly efficiency, making it convenient for users. The ball node of the space frame is pre-rotated to the designed angle, and then leveled during hoisting and flipping of the space frame, eliminating the need for further adjustment of the hoisting angle, greatly improving assembly efficiency and reducing workload. The angle adjustment of the ball node is easy, requiring minimal additional equipment, further improving assembly efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of construction technology of spherical nodes in space frames, and specifically relates to an angle positioning device for spherical nodes in space frames. Background Technology

[0002] Due to safety and cost considerations, offshore photovoltaic (PV) installations are not suitable for large-scale personnel operations at sea. A better alternative is a PV support structure, which is assembled on land, transported to the installation site, and then hoisted onto pre-drilled piling foundations. Current technology involves horizontal installation of PV supports on land, with angle adjustments made manually using an angle gauge. This process is labor-intensive, inefficient, and impractical for real-world applications.

[0003] Existing patent documents disclose a utility model patent for an integrally installed offshore photovoltaic support structure for a steel grid platform (publication number: CN221052551U). In its specific implementation, the assembled grid platform 2 can be placed horizontally on a transport ship to be transported to the construction site. A connecting structure 4 is installed on the lower plane frame of the grid platform 2 and connected to the ball node 24 at the corresponding position. The tip 41 is inserted into the pile of the steel pipe pile 11 by hoisting. However, the above-mentioned problem still exists, which requires constant adjustment of the hoisting angle, which is not conducive to practical use. Utility Model Content

[0004] The purpose of this utility model is to provide a technical solution for a space frame ball node angle positioning device to address the shortcomings of existing technologies. This utility model has a compact structure, is easy to use, has high assembly efficiency, and is convenient for users to use. The ball node of the space frame is rotated to the designed angle in advance, and then leveled when the space frame is hoisted and flipped, without the need to adjust the hoisting angle again, which greatly improves the assembly efficiency and reduces the workload. The angle adjustment of the ball node of the space frame is easy and does not require too many devices, further improving the assembly efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A net frame ball node angle positioning device includes a placement frame, a fixing frame, and a connector. The placement frame holds the net frame ball node, and the fixing frame is snapped into place with the placement frame. The net frame ball node is limited and snapped into the fixing frame by the connector, thus achieving the placement of the net frame ball node. The connector includes a handle and a connecting rod, which are detachably connected. The net frame ball node is pre-rotated to the designed angle, and then fixed by the connector and fixing frame, ensuring that the net frame ball node remains at a specific angle. The placement frame facilitates stable placement of the net frame ball node, and the detachable connection between the handle and the connecting rod simplifies the use and installation process of the device.

[0007] Furthermore, the placement frame includes support columns and ball holders. The ball holders are fixedly connected to the top of the support columns, and the net frame ball nodes match the ball holders. The support columns facilitate the stable placement of the entire placement frame, allowing it to be placed directly on the ground. The net frame ball nodes are placed inside the ball holders, making it easy for staff to adjust the angle of the net frame ball nodes.

[0008] Furthermore, the mounting bracket includes uprights and limiting rods. A limiting buckle is located at the top of the upright and includes a connecting rod and a limiting rod, with the connecting rod perpendicular to the limiting rod. This perpendicular alignment of the connecting rod and the limiting rod forms a stable limiting buckle structure, enhancing the overall stability of the structure. The design of the limiting buckle facilitates precise positioning of the ball joints in the space frame.

[0009] Furthermore, a limiting groove is formed between the limiting rod and the connecting rod, and the handle is engaged and fixed in the limiting groove. The vertical arrangement of the connecting rod and the limiting rod facilitates the formation of the limiting groove, and the engagement and fixing of the handle with the limiting groove facilitates operation by construction personnel, while ensuring the stability of the spherical joint of the space frame.

[0010] Furthermore, a horizontal bar is installed at the bottom of the upright, and a clamp is installed on the end face of the horizontal bar, which is matched and snapped into the support column. The matching and snapping design between the clamp and the support column realizes the installation and fixation between the fixing frame and the placement frame, further enhancing the stability of the structure.

[0011] Furthermore, the connecting rod is equipped with a convex ring, and the ball joint of the net frame is equipped with a lifting lug. The lifting lug has a lifting hole, and the convex ring and the lifting hole are matched and plugged in. The lifting lug facilitates the angle adjustment of the ball joint of the net frame by the workers, the lifting hole facilitates hoisting, and the plugging method of the convex ring and the lifting hole makes the installation process simple and quick.

[0012] Furthermore, the handle has a through hole, and both ends of the connecting rod have threaded sections. After the connecting rod passes through the through hole, it is fixed by the threaded sections and nuts, thus achieving the installation and fixation between the handle and the connecting rod. A simple operation of drilling and tightening the nuts allows for a secure connection between the handle and the connecting rod, improving assembly efficiency.

[0013] Furthermore, a positioning rod is provided on the handle, and a positioning groove is formed between the two positioning rods. The positioning groove is engaged and fixed with the connecting rod. Pulling the handle back will engage and fix the connecting rod with the positioning groove. At this time, dragging the lifting lug will adjust the lifting lug back to ensure that the lifting lug cannot move, further ensuring the stability of the net frame ball node at the special 15-degree angle.

[0014] Furthermore, connection points are provided on the ball joints of the net frame. The ball joints rotate within the ball support, and the connection points rotate with the rotation of the ball joints. When the ball joints of the net frame are at a special angle, the connection points facilitate precise positioning when welding the steel rods to the ball joints, and the connection points rotate with the rotation of the ball joints.

[0015] Furthermore, the handle has a U-shaped structure. The simple lines and rounded shape of the U-shaped handle give it excellent aesthetics while also making it easy for staff to operate.

[0016] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0017] This utility model boasts a compact structure, convenient use, high assembly efficiency, stable structure, and easy operation. Components are connected via snap-fit ​​and limit snap-fit ​​mechanisms, ensuring structural stability. The handle and connecting rod are detachable, facilitating installation and disassembly and enhancing operational convenience. Multiple fixing and limit designs guarantee stability and safety during construction. Its convenient operation, flexible adjustment, precise positioning, high adaptability, and reliability significantly improve the efficiency and quality of space frame structure construction. The simplified construction allows for mechanized operation, leverages the lever principle to improve practical work skills, increases construction efficiency and mechanical flexibility, reduces labor input to lower construction costs, and exhibits strong environmental adaptability. It can be fabricated and installed using existing tools and materials on-site, resulting in low manufacturing costs. It greatly expands the application range and performance of the auxiliary construction trolley; all parts are prefabricated, the entire process is simple to operate, and the device uses green steel, allowing for reuse. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of a space frame ball node angle positioning device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the net frame ball node placed inside the ball support in this utility model;

[0021] Figure 3 This is a schematic diagram of the handle structure in this utility model;

[0022] Figure 4 This is a schematic diagram of the connecting rod in this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the fixing frame in this utility model.

[0024] In the diagram: 1-Placement frame; 2-Fixing frame; 3-Spherical node of the space frame; 4-Connector; 5-Support column; 6-Spherical support; 7-Upright pole; 8-Limit buckle; 9-Connecting rod; 10-Limiting rod; 11-Limiting groove; 12-Horizontal bar; 13-Clamp; 14-Protruding ring; 15-Handle; 16-Connecting rod; 17-Lifting lug; 18-Lifting hole; 19-Through hole; 20-Threaded section; 21-Nut; 22-Positioning rod; 23-Positioning groove; 24-Connection point. Detailed Implementation

[0025] like Figures 1 to 5 As shown, this utility model discloses a space frame ball node angle positioning device, including a placement frame 1, a fixing frame 2, and a connector 4. A space frame ball node 3 is placed on the placement frame 1. The fixing frame 2 is snapped into place on the placement frame 1. The space frame ball node 3 is limited and snapped into place on the fixing frame 2 via the connector 4, thus achieving the placement of the space frame ball node 3. The connector 4 includes a handle 15 and a connecting rod 16, which are detachably connected. The space frame ball node 3 is pre-rotated to the designed angle, and the connection between the space frame ball node 3 and the fixing frame 2 via the connector 4 ensures that after the operator adjusts the angle of the space frame ball node 3, it can be fixed, ensuring that the space frame ball node 3 remains at a specific angle. This eliminates the need for further adjustment of the lifting angle during subsequent hoisting and flipping of the space frame, greatly improving assembly efficiency. The placement frame 1 facilitates the stable placement of the space frame ball node 3, and the detachable connection between the handle 15 and the connecting rod 16 simplifies the use and installation of the device.

[0026] The placement frame 1 includes a support column 5 and a ball holder 6. The ball holder 6 is fixedly connected to the top of the support column 5, and the net frame ball node 3 matches the ball holder. The ball holder 6 is welded and fixed to the top of the support column 5, ensuring the stability and firmness of the ball holder 6. The support column 5 facilitates the stable placement of the entire placement frame 1, and it can be placed directly on the ground. The net frame ball node 3 is placed inside the ball holder 6, and the net frame ball node 3 can rotate within the ball holder 6, making it convenient for staff to adjust the angle of the net frame ball node 3.

[0027] The mounting bracket includes a vertical pole 7 and a limiting rod 10. A limiting buckle 8 is located at the top of the vertical pole 7. The limiting buckle 8 includes a connecting rod 9 and the limiting rod 10, with the connecting rod 9 perpendicular to the limiting rod 10. This forms a stable limiting buckle 8 structure, which effectively prevents the space frame ball node 3 from shifting or rotating under stress, thereby enhancing the stability of the entire structure. The design of the limiting buckle 8 facilitates precise positioning of the space frame ball node 3, ensuring stability when the space frame ball node 3 is at a specific angle, and further facilitating subsequent construction by workers, thus improving assembly efficiency.

[0028] A limiting groove 11 is formed between the limiting rod 10 and the connecting rod 9, and the handle 15 is engaged and fixed in the limiting groove 11. The vertical arrangement of the connecting rod 9 and the limiting rod 10 facilitates the formation of the limiting groove 11. The engagement and fixation of the handle 15 with the limiting groove 11 allows construction personnel to quickly insert or remove the handle 15 into the limiting groove 11 without the need for additional tools or complex operations. This also ensures the stability of the spherical node 3 of the space frame under various forces, further ensuring the stability of the spherical node 3 when it is at a special angle.

[0029] A horizontal bar 12 is installed at the bottom of the upright 7, and a clamp 13 is installed on the end face of the horizontal bar 12. The clamp 13 is matched and snapped into the support column 5. The matching and snapping design of the clamp 13 and the support column 5 further enhances the stability of the structure. The clamp 13 can fit tightly into the support column 5 to realize the installation and fixation between the fixing frame 2 and the placement frame 1, which facilitates the stable progress of the next construction step. Moreover, the installation process is simple and quick, reducing installation time and labor costs, and improving construction efficiency.

[0030] A convex ring 14 is provided on the connecting rod 16, and a lifting lug 17 is provided on the ball node 3 of the space frame. The lifting lug 17 has a lifting hole 18, and the convex ring 14 and the lifting hole 18 are matched and inserted. The lifting lug 17 facilitates the angle adjustment of the ball node 3 by workers, and the lifting hole 18 facilitates hoisting. The insertion method of the convex ring 14 and the lifting hole 18 makes the installation process simple and quick. Construction workers do not need to use complicated tools or perform tedious operations; they only need to align the convex ring 14 with the lifting hole 18 and insert it, greatly improving installation efficiency. The matching insertion design of the convex ring 14 and the lifting hole 18 ensures precise positioning between the connecting rod 16 and the ball node 3 of the space frame, avoiding misalignment or offset problems. After insertion, the tight fit between the convex ring 14 and the lifting hole 18 provides a stable connection effect.

[0031] The handle 15 has a through hole 19, and the two ends of the connecting rod 16 have threaded sections 20. The connecting rod 16 passes through the through hole 19 and is secured by the threaded sections 20 and nuts 21, thus achieving the installation and fixation between the handle 15 and the connecting rod 16. A simple operation of drilling and tightening the nuts 21 achieves a secure connection between the handle 15 and the connecting rod 16, eliminating the need for complex tools or cumbersome steps, significantly reducing installation time. The threaded connection is self-locking, ensuring a firm connection between the handle 15 and the connecting rod 16, preventing loosening or detachment, and improving connection reliability. When the handle 15 needs to be replaced or repaired, it can be easily disassembled by simply loosening the nuts 21, without damaging other components, reducing maintenance costs.

[0032] A positioning rod 22 is provided on the handle 15, and a positioning groove 23 is formed between the two positioning rods 22. The positioning groove 23 is engaged and fixed with the connecting rod 9. Pulling the handle 15 back will engage and fix the connecting rod 9 with the positioning groove 23. At this time, dragging the lifting lug 17 will adjust the lifting lug 17 back to ensure that the lifting lug 17 cannot move. This further ensures the stability of the net frame ball node 3 at the special 15-degree angle. The engagement design of the positioning groove 23 and the connecting rod 9 ensures the precise positioning between the two. Once the connecting rod 9 is engaged in the positioning groove 23, the connection between the two will be very stable and will not easily loosen or misalign due to external force or vibration, thus ensuring the stability and safety of the connection.

[0033] A connection point 24 is provided on the ball joint 3 of the net frame. The ball joint 3 rotates within the ball support 6, and the connection point 24 rotates with the ball joint 3. When the ball joint 3 of the net frame is at a special angle, the connection point 24 facilitates the precise positioning when welding the steel rod to the ball joint 3 of the net frame, and the connection point 24 rotates with the ball joint 3 of the net frame.

[0034] The handle 15 has a U-shaped structure. The simple lines and rounded shape of the U-shaped handle 15 give it excellent aesthetics and make it easy for staff to operate.

[0035] Place the support column 5 stably to ensure the stable placement of the placement frame 1. Place the ball node 3 of the net frame inside the ball holder 6. Place the fixing frame 2 stably. Connect the fixing frame 2 and the placement frame 1 by matching and engaging the clamp on the crossbar 12 with the support column 5. The connecting rod 16 passes through the lifting hole 18. The convex ring 14 is matched and inserted into the lifting hole 18. After the connecting rod 16 passes through the through hole 19, it is tightened and fixed to the handle 15 by engaging the threaded section 20 with the nut 21. Drag the handle 15 to engage and fix it with the limiting groove 11 in the limiting buckle 8. At this time, the ball node 3 of the net frame is in the handle 1. Driven by 5, the position of connection point 24 changes accordingly. Then, pull handle 15 back to lock and fix connecting rod 9 with positioning groove 23. At this time, drag lifting lug 17 to adjust it back to ensure that lifting lug 17 cannot move. At this time, the sphere node 3 of the grid structure is at a special angle and the angle is fixed. Connect the steel rod to connection point 24 to achieve welding and fixation between the steel rod and the sphere node 3 of the grid structure. After the steel rod is connected to connection point 24, remove connecting piece 4, and then transport the sphere node 3 of the grid structure together with the steel rod to the designated position through lifting lug 17. There is no need to adjust the lifting angle, which improves assembly efficiency.

[0036] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to achieve essentially the same technical effect are all covered within the protection scope of this utility model.

Claims

1. A device for positioning the angle of a ball node in a space frame, characterized in that... include: Placement rack, on which the net frame ball nodes are placed; The fixing frame is snapped and fixed to the placement frame; The connector is used to limit and engage the ball node of the net frame with the fixed frame, thereby enabling the placement of the ball node. The connector includes a handle and a connecting rod, and the handle and the connecting rod are detachably connected.

2. The space frame ball node angle positioning device according to claim 1, characterized in that: The placement frame includes a support column and a ball holder, the ball holder is fixedly connected to the top of the support column, and the ball node of the net frame matches the ball holder.

3. The space frame ball node angle positioning device according to claim 2, characterized in that: The fixing frame includes an upright and a limiting buckle. The limiting buckle is disposed at the top of the upright and includes a connecting rod and a limiting rod. The connecting rod is perpendicular to the limiting rod.

4. The space frame ball node angle positioning device according to claim 3, characterized in that: A limiting groove is formed between the limiting rod and the connecting rod, and the handle is engaged and fixed with the limiting groove.

5. The space frame ball node angle positioning device according to claim 3, characterized in that: A horizontal bar is provided at the bottom end of the upright, and a clamp is provided on the end face of the horizontal bar, which is matched and snapped into the support column.

6. The space frame ball node angle positioning device according to claim 1, characterized in that: The connecting rod is provided with a protruding ring, the ball joint of the grid frame is provided with a lifting lug, the lifting lug is provided with a lifting hole, and the protruding ring is matched and inserted into the lifting hole.

7. The space frame ball node angle positioning device according to claim 1, characterized in that: The handle has a through hole, and the two ends of the connecting rod have threaded sections. After the connecting rod passes through the through hole, it is fixed by the threaded sections and nuts, thereby realizing the installation and fixation between the handle and the connecting rod.

8. The space frame ball node angle positioning device according to claim 3, characterized in that: The handle is provided with a positioning rod, and a positioning groove is formed between the two positioning rods. The positioning groove is engaged and fixed with the connecting rod.

9. A space frame ball node angle positioning device according to claim 2, characterized in that: The ball node of the net frame is provided with a connection point. The ball node of the net frame rotates within the ball support, and the connection point rotates with the rotation of the ball node of the net frame.

10. A space frame ball node angle positioning device according to claim 1, characterized in that: The handle has a U-shaped structure.