Steel truss slippable spherical support node

Abstract

The utility model provides a kind of steel truss slippable spherical support node, it is related to spherical support technical field, including lower support, the top of lower support is equipped with intermediate body, the inside of intermediate body is equipped with ball socket, the inside of ball socket is provided with spherical four fluorine sliding plate, the top of stainless steel plate is equipped with upper support, the both sides below upper support are equipped with side plate, the both sides of lower support are provided with guiding mechanism;Through the both sides of lower support are equipped with guiding mechanism, the mutual cooperation between guiding mechanism is utilized, the sliding direction of upper support plate can be accurately constrained, by optimizing clearance design, while ensuring the stability of sliding, not interfering with support multi-angle rotation, solve the functional conflict of traditional guiding and rotating, also can compatible multidimensional sliding demand, integrated buffer assembly, reduce impact damage, reduce abrasion, prolong node life, improve large-span steel truss structure stability and security.

Description

Technical Field

[0001] This utility model relates to the field of spherical support technology, and in particular to a sliding spherical support node for steel trusses. Background Technology

[0002] In large-span steel truss structures, sliding spherical bearing nodes are key components connecting the steel truss and the lower support structure. They must simultaneously meet the functional requirements of vertical load transfer, multi-angle rotation adaptation, and horizontal sliding compensation to cope with the deformation of the structure under conditions such as temperature changes, live loads, and earthquakes.

[0003] In the design of existing sliding spherical bearing nodes, the coordinated realization of sliding and rotation functions has always been a technical challenge, especially in the guiding process of the upper bearing plate. In traditional structures, to ensure the stable sliding of the upper bearing plate along a preset direction, a rigid fit between the guide block and the guide groove is often used. However, this design is prone to conflict with the rotation function of the bearing. When the steel truss rotates due to the load, the upper bearing plate needs to rotate around the spherical core. The rigid contact between the guide block and the guide groove will create a constraint, resulting in obstructed rotation or additional stress. In severe cases, it may even cause wear of the guide structure or deformation of the node. Therefore, this utility model proposes a sliding spherical bearing node for steel trusses to solve the above problems. Utility Model Content

[0004] To address the aforementioned issues, this utility model proposes a sliding spherical support node for steel trusses, which solves the problem of inconvenience in guiding the upper support during sliding in existing technologies.

[0005] To achieve the purpose of this utility model, the present utility model is implemented through the following technical solution: a sliding spherical support node for a steel truss, including a lower support, an intermediate body installed at the top of the lower support, a spherical cavity opened on the inner side of the intermediate body, a spherical PTFE sliding plate disposed inside the spherical cavity, a spherical body installed above the spherical PTFE sliding plate, a connecting plate installed at the top of the spherical body, a first planar PTFE sliding plate installed at the top of the connecting plate, a middle liner plate installed on the outer side of the intermediate body, a second planar PTFE sliding plate installed at the top of the middle liner plate, a stainless steel plate installed at the top of the second planar PTFE sliding plate, an upper support installed at the top of the stainless steel plate, side plates installed on both sides below the upper support, and guide mechanisms provided on both sides of the lower support.

[0006] A further improvement is that the guiding mechanism includes a guide groove, a guide block, and a connecting rod. The guide groove is opened on both sides inside the lower support. A guide block is provided inside the guide groove. A connecting rod is installed at the top of the guide block. The top of the connecting rod is connected to the bottom of the upper support.

[0007] A further improvement is that the cross-section of the guide groove is larger than the cross-section of the guide block, and the guide groove and the guide block are in a floating fit.

[0008] A further improvement is made in that: a helical spring is installed at both ends inside the guide groove, a mounting plate is installed at one end of the helical spring, and a neoprene rubber block is installed at one end of the mounting plate.

[0009] A further improvement is made in that a limiting groove is provided at the bottom inside the guide groove, and a limiting block is provided inside the limiting groove, with the top end of the limiting block connected to the bottom end of the mounting plate.

[0010] A further improvement is that the cross-section of the limiting groove is larger than the cross-section of the limiting groove, and the limiting groove and the limiting block form a sliding structure.

[0011] The beneficial effects of this utility model are as follows: By setting guide mechanisms on both sides of the lower support, the guide groove, guide block, connecting rod, helical spring, mounting plate, neoprene rubber block, limiting groove and limiting block of the guide mechanism can precisely constrain the sliding direction of the upper support plate. By optimizing the gap design, while ensuring the sliding stability, it does not interfere with the multi-angle rotation of the support, solves the functional conflict between traditional guidance and rotation, and can also accommodate multi-dimensional sliding requirements. The integrated buffer components reduce impact damage, reduce wear, extend the life of nodes, and improve the stability and safety of large-span steel truss structures. Attached Figure Description

[0012] Figure 1 This is an exploded structural diagram of the present invention; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the overall structure of the guiding mechanism of this utility model.

[0013] The components are: 1. Lower support; 2. Intermediate body; 3. Ball socket; 4. Spherical PTFE sliding plate; 5. Spherical body; 6. Connecting plate; 7. First plane PTFE sliding plate; 8. Middle liner plate; 9. Second plane PTFE sliding plate; 10. Stainless steel plate; 11. Upper support; 12. Side plate; 13. Guide groove; 14. Guide block; 15. Connecting rod; 16. Helical spring; 17. Mounting plate; 18. Neoprene rubber block; 19. Limiting groove; 20. Limiting block. Detailed Implementation

[0014] To enhance understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are for illustrative purposes only and do not constitute a limitation on the scope of protection of this utility model.

[0015] according to Figure 1 , 2As shown in Figure 3, this embodiment proposes a sliding spherical support node for a steel truss, including a lower support 1. An intermediate body 2 is installed at the top of the lower support 1. A spherical socket 3 is formed on the inner side of the intermediate body 2. A spherical PTFE sliding plate 4 is arranged inside the spherical socket 3. A spherical body 5 is installed above the spherical PTFE sliding plate 4. A connecting plate 6 is installed at the top of the spherical body 5. A first planar PTFE sliding plate 7 is installed at the top of the connecting plate 6. A middle liner plate 8 is installed on the outer side of the intermediate body 2. A second planar PTFE sliding plate 9 is installed at the top of the middle liner plate 8. A stainless steel plate 10 is installed at the top of the second planar PTFE sliding plate 9. An upper support 11 is installed at the top of the stainless steel plate 10. Side plates 12 are installed on both sides below the upper support 11. Guide mechanisms are provided on both sides of the lower support 1.

[0016] The guiding mechanism includes a guide groove 13, a guide block 14, and a connecting rod 15. The guide groove 13 is formed on both sides inside the lower support 1. The guide block 14 is set inside the guide groove 13. The connecting rod 15 is installed on the top of the guide block 14. The top of the connecting rod 15 is connected to the bottom of the upper support 11. The cross-section of the guide groove 13 is larger than the cross-section of the guide block 14. The guide groove 13 and the guide block 14 float together, which can accurately constrain the sliding direction of the upper support 11 plate. By optimizing the gap design, the sliding stability is ensured while not interfering with the multi-angle rotation of the support, solving the functional conflict between traditional guidance and rotation. It can also accommodate multi-dimensional sliding requirements, integrate buffer components, reduce impact damage, reduce wear, extend node life, and improve the stability and safety of large-span steel truss structures.

[0017] A helical spring 16 is installed at both ends inside the guide groove 13. A mounting plate 17 is installed at one end of the helical spring 16, and a neoprene block 18 is installed at one end of the mounting plate 17.

[0018] A limiting groove 19 is formed at the bottom inside the guide groove 13. A limiting block 20 is provided inside the limiting groove 19. The top end of the limiting block 20 is connected to the bottom end of the mounting plate 17. The cross-section of the limiting groove 19 is larger than that of the limiting groove 19. The limiting groove 19 and the limiting block 20 form a sliding structure. In use, the mutual cooperation between the limiting groove 19 and the limiting block 20 can limit the movement of the mounting plate 17, making the mounting plate 17 more stable when moving.

[0019] Working principle: The operator first installs the spherical support node. During use, the cooperation between the ball socket 3, the spherical PTFE sliding plate 4, and the spherical body 5 allows for multi-angle rotation. The cooperation between the second-plane PTFE sliding plate 9 and the stainless steel plate 10 allows for sliding motion. The cooperation between the guide groove 13 and the guide block 14 guides the upper support 11 during sliding. The cooperation between the helical spring 16 and the mounting plate 17 allows the helical spring 16 to buffer the impact through elastic deformation when the guide block 14 contacts the mounting plate 17, dissipating energy internally and avoiding rigid collisions. The use of the neoprene rubber block 18 utilizes its elastic deformation to buffer the impact force. At the same time, the maximum sliding amount is controlled by the compression of the neoprene rubber block 18. The thickness of the rubber block corresponds to the limit displacement, making the spherical support more effective.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sliding spherical support node for a steel truss, comprising a lower support (1), characterized in that: The lower support (1) is equipped with an intermediate body (2) at its top. A ball socket (3) is provided on the inner side of the intermediate body (2). A spherical PTFE sliding plate (4) is provided inside the ball socket (3). A spherical body (5) is installed above the spherical PTFE sliding plate (4). A connecting plate (6) is installed at the top of the spherical body (5). A first planar PTFE sliding plate (7) is installed at the top of the connecting plate (6). A middle liner plate (8) is installed on the outer side of the intermediate body (2). A second planar PTFE sliding plate (9) is installed at the top of the middle liner plate (8). A stainless steel plate (10) is installed at the top of the second planar PTFE sliding plate (9). An upper support (11) is installed at the top of the stainless steel plate (10). Side plates (12) are installed on both sides below the upper support (11). Guide mechanisms are provided on both sides of the lower support (1).

2. The sliding spherical support node for a steel truss according to claim 1, characterized in that: The guiding mechanism includes a guide groove (13), a guide block (14) and a connecting rod (15). The guide groove (13) is opened on both sides inside the lower support (1). The guide block (14) is provided inside the guide groove (13). The connecting rod (15) is installed at the top of the guide block (14). The top of the connecting rod (15) is connected to the bottom of the upper support (11).

3. A sliding spherical support node for a steel truss according to claim 2, characterized in that: The cross-section of the guide groove (13) is larger than the cross-section of the guide block (14), and the guide groove (13) and the guide block (14) are in a floating fit.

4. A sliding spherical support node for a steel truss according to claim 3, characterized in that: A helical spring (16) is installed at both ends inside the guide groove (13). A mounting plate (17) is installed at one end of the helical spring (16), and a neoprene block (18) is installed at one end of the mounting plate (17).

5. A sliding spherical support node for a steel truss according to claim 4, characterized in that: A limiting groove (19) is provided at the bottom inside the guide groove (13), and a limiting block (20) is provided inside the limiting groove (19). The top end of the limiting block (20) is connected to the bottom end of the mounting plate (17).

6. A sliding spherical support node for a steel truss according to claim 5, characterized in that: The cross-section of the limiting groove (19) is larger than the cross-section of the limiting groove (19), and the limiting groove (19) and the limiting block (20) form a sliding structure.

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