Aluminum alloy grid rod tenon-mortise connection node structure
By using mortise and tenon joints to connect nodes with aluminum alloy mesh rods, the problems of complex construction and poor aesthetics of traditional node connection methods are solved, achieving a fast and reliable connection effect and improving the application effect of aluminum alloy materials.
Patent Information
- Application Number
- CN202521970057.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-13
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-13
AI Technical Summary
Traditional spatial grid structures suffer from problems such as complex construction, difficulty in quality control, poor aesthetics, and failure to fully utilize the advantages of aluminum alloy materials in their node connection methods.
The aluminum alloy mesh rods are connected by mortise and tenon joints. Through the cooperation of wedge-shaped mortise and tenon segments and hub body, combined with high-strength studs and cover plates, the rods and nodes are quickly and reliably connected, avoiding on-site welding.
It enables fast and reliable connection of rods and nodes, improves installation efficiency, ensures load-bearing performance and aesthetics, reduces on-site construction work, and is suitable for various grid structure forms.
Smart Images
Figure CN224678856U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building structure engineering, and in particular to an aluminum alloy grid rod mortise and tenon connection node structure based on the mortise and tenon principle for aluminum alloy node connection in large-span spatial grid structures. Background Technology
[0002] Traditional spatial grid structures (such as space frames and shells) often use welded or bolted ball joints. Welded joints involve a large amount of on-site construction work, are difficult to control in terms of quality, and have significant residual welding stress; bolted ball joints require high machining precision, and are large in size, affecting aesthetics. Aluminum alloys, due to their lightweight, high strength, corrosion resistance, and ease of forming, are increasingly widely used in spatial structures, but traditional joint types cannot fully utilize their advantages. Therefore, there is an urgent need for a new type of joint structure that is easy to install, has clear force transmission, is aesthetically pleasing, and is suitable for aluminum alloys, but no publicly reported examples have been found to date. Utility Model Content
[0003] In view of the above situation and to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an aluminum alloy mesh rod tenon and mortise connection node structure, which can effectively solve the problem of fast and reliable connection between rods and nodes.
[0004] The technical solution provided by this utility model is an aluminum alloy mesh rod tenon and mortise connection node structure, including rods and nodes. The rod is composed of a circular straight section and a wedge-shaped tenon and mortise section. The front part of the wedge-shaped tenon and mortise section is provided with several protruding ribs (tenons, two are shown in the figure). The node structure includes a cylindrical hub with a through hole in the center. The vertical wall surface of the hub has grooves corresponding to the protruding ribs. The protruding ribs are driven into the grooves and tenoned together. A high-strength stud is inserted into the through hole of the hub, and the rod and hub are firmly fixed together by nuts at both ends of the high-strength stud and upper and lower cover plates, thus forming an aluminum alloy mesh rod tenon and mortise connection node structure.
[0005] This utility model has a simple, novel, and unique structure, is easy to install and use, and has good results. The node draws on the concept of traditional Chinese mortise and tenon structure and achieves a fast and reliable connection between the rod and the node through mechanical extrusion and stamping. It does not require on-site welding, has good stress performance, and high installation efficiency. It is an innovation in aluminum alloy mesh connection structure and has practical application value. Attached Figure Description
[0006] Figure 1 This is a front view of the structural cross-section of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a top view enlarged structural diagram of the hub body 2 of this utility model; Figure 4 This is a partial enlarged front view of the rod 1 of this utility model. Among them: 1. Rod; 1-1. Raised rib; 1-2. Wedge tenon; 1-3. Circular straight section; 2. Hub; 3. High-strength stud; 4. Nut; 5. Upper and lower cover plates; 6. Groove; 7. Through hole. Detailed Implementation
[0007] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings and specific circumstances.
[0008] Depend on Figure 1-4 As shown, this utility model discloses an aluminum alloy mesh rod tenon and tenon joint structure, including rods and joints. The rod 1 is composed of a circular straight section 1-3 and a wedge-shaped tenon and tenon section 1-2. The wedge-shaped tenon and tenon section 1-2 has several protruding ribs 1-1 (tenons, two are shown in the figure) on its front part. The structure of the joint includes a cylindrical hub 2 with a through hole 7 in the center. The vertical wall surface of the hub 2 has grooves 6 corresponding to the protruding ribs 1-1. The protruding ribs 1-1 are driven into the grooves 6 and tenoned together. A high-strength stud 3 is inserted into the through hole 7 of the hub 2, and the rod 1 and the hub 2 are firmly fixed together by nuts 4 at both ends of the high-strength stud 3 and upper and lower cover plates 5, thus forming an aluminum alloy mesh rod tenon and tenon joint structure.
[0009] To ensure effectiveness and ease of use, the hub 2 is a cylinder made of high-strength aluminum alloy by casting or machining.
[0010] The groove 6 is a tenon wedge shape that is formed in one piece by extrusion process and matches the protruding rib 1-1, ensuring size, precision and strength.
[0011] The protruding rib 1-1 on the wedge-shaped tenon section 1-2 of the rod 1 is a tenon wedge shape that matches the groove 6, formed by die stamping.
[0012] Insert strips can also be driven into the groove 6 to ensure that the protruding ribs of the rod are in close contact with the groove (not shown in the figure) and to ensure the installation effect.
[0013] In practical production and use, the hub body 2 is made of high-strength aluminum alloy by casting or machining. The column groove 6 on it is formed in one piece by extrusion, ensuring dimensional accuracy and strength. The protruding ribs at the ends of the rods 1 are formed by stamping their ends using a special mold. During installation, align the protruding ribs of each rod 1 with the corresponding grooves 6 on the hub body 2 and insert them into place. Then, cover both ends of the hub body 2 with the upper and lower cover plates 5, insert high-strength studs 3, and put washers and nuts 4 on both ends of the studs. Tighten the nuts 4 symmetrically with a torque wrench to connect all components into a whole, forming a reliable joint connection. If necessary, insert strips are driven into the grooves 6 to ensure that the protruding ribs of the rods are in close contact with the grooves.
[0014] As can be seen from the above, this utility model has a simple, novel, and unique structure, is easy to manufacture, convenient to use, and has good effects. Compared with the prior art, it has the following outstanding beneficial technical effects: 1. High degree of prefabrication and quick construction: All components can be prefabricated in the factory, and only assembly and bolt tightening are required on site, which greatly reduces the amount of on-site work and construction period.
[0015] 2. Clear force transmission path and excellent mechanical properties: The axial force of the rod is directly transmitted to the hub through the bearing surface of the rib-groove, resulting in direct force transmission and high node stiffness.
[0016] 3. No welding required: It avoids problems such as reduced material strength, residual stress and deformation in the heat-affected zone caused by welding, and is especially suitable for aluminum alloy structures.
[0017] 4. Compact structure and good aesthetics: The nodes have a simple and smooth appearance, and the hub can be designed into different shapes according to the building requirements, which is convenient and flexible.
[0018] 5. Wide applicability: It can be widely used in various grid structure forms such as single-layer, double-layer, and multi-layer grid shells, grid frames, and hollow structures, and has great practical application value.
[0019] It should also be noted that the above are only preferred embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A tenon-and-mortise connection node structure for aluminum alloy mesh rods, comprising rods and nodes, characterized in that, The rod (1) is composed of a circular straight section (1-3) and a wedge-shaped tenon section (1-2). The wedge-shaped tenon section (1-2) has several protruding ribs (1-1) on its front. The structure of the node includes a cylindrical hub (2), with a through hole (7) in the center of the hub (2). The vertical wall of the hub (2) has a groove (6) corresponding to the protruding rib (1-1). The protruding rib (1-1) is driven into the groove (6) and tenoned together. A high-strength stud (3) is inserted into the through hole (7) of the hub (2). The rod (1) and the hub (2) are firmly fixed together by the nuts (4) on both ends of the high-strength stud (3) and the upper and lower cover plates (5), forming an aluminum alloy grid rod tenon connection node structure.
2. The aluminum alloy mesh rod tenon and mortise connection node structure according to claim 1, characterized in that, The hub (2) is a cylinder made of high-strength aluminum alloy by casting or machining.
3. The aluminum alloy mesh rod tenon and mortise connection node structure according to claim 1, characterized in that, The groove (6) is a tenon wedge shape that is formed in one step by extrusion process and matches the rib (1-1) to ensure size, accuracy and strength.
4. The aluminum alloy mesh rod tenon and mortise connection node structure according to claim 1, characterized in that, The protruding rib (1-1) on the wedge-shaped tenon section (1-2) of the rod (1) is a tenon wedge shape that matches the groove (6) and is formed by die stamping.
5. The aluminum alloy mesh rod tenon and mortise connection node structure according to claim 1, characterized in that, Inserts can also be driven into the groove (6) to ensure that the ribs of the rod are in close contact with the groove, thus ensuring the installation effect.