A curved surface space frame splicing connection structure

Abstract

This invention discloses an arc-shaped space frame splicing connection structure, including a node structure. The node structure includes a sphere with ribs inside. Anchor bolts and supports are welded to the outer surface of the sphere, and the sphere also has casting holes and ventilation holes. An adjustment component is provided at the bottom of the node structure. The adjustment component includes a movable cylinder fixedly connected to the supports, and a fixed cylinder is slidably connected to the movable cylinder. This arc-shaped space frame splicing connection structure connects the node structures by setting up an adjustment component and an operating component. By using the lead screw in the adjustment component, the movable cylinder can be moved up and down inside the fixed cylinder, and the position of the node structure can be precisely adjusted. At the same time, the friction texture on the surface of the friction block and the elasticity of the spring in the operating component lock the overall structure by increasing the friction force, thereby improving the overall stability of the device.

Description

Technical Field

[0001] This invention relates to the field of space frame manufacturing technology, specifically to a curved surface space frame splicing and connection structure. Background Technology

[0002] In the traditional manufacturing of curved space frames, steel spheres are used, and steel beams are welded onto the spheres to facilitate the manufacture of curved space frame structures. However, the adjustment of the position of the traditional sphere node structure is relatively complicated, which affects the efficiency of actual space frame splicing and connection. Therefore, we propose a new splicing and connection structure for curved space frames. Summary of the Invention

[0003] The purpose of this invention is to provide a curved surface grid splicing connection structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an arc-shaped space frame splicing connection structure, including a node structure, wherein the node structure includes a sphere, the sphere having ribs inside, and anchor bolts and supports welded to the outer surface of the sphere, and the sphere also having casting holes and vent holes; an adjustment assembly is provided at the bottom of the node structure, the adjustment assembly including a movable cylinder fixedly connected to the supports, a fixed cylinder slidably connected to the movable cylinder, a flange fixedly installed at the lower end of the fixed cylinder, and an mounting plate fixedly installed on the inner wall of the fixed cylinder, a driven shaft rotatably mounted on the mounting plate, a lead screw fixedly installed at the upper end of the driven shaft, and a secondary bevel gear fixedly installed at the lower end of the driven shaft, the secondary bevel gear meshing with a main bevel gear, a drive shaft rotatably connected to the fixed cylinder fixedly mounted on the main bevel gear, an auxiliary nut threadedly connected to the lead screw fixedly installed on the inner wall of the movable cylinder, and an auxiliary nut fixedly mounted on the upper end of the lead screw. The device is equipped with a limit block; the fixed cylinder is also provided with an operating component, which includes a connecting plate fixedly connected to the drive shaft and a first ball joint rod slidably disposed inside the drive shaft. A connecting rod is fixedly installed on the end face of the first ball joint rod, a friction block is fixedly installed at the end of the connecting rod, and a first spring is fixedly installed on the side of the connecting rod. The end of the first spring is also fixedly connected to the drive shaft. A slide rod is slidably disposed on the connecting plate, a spherical protrusion is fixedly installed on the side of the slide rod, and a stop block is fixedly installed on the outer surface of the slide rod. A second ball joint rod and a third ball joint rod are slidably disposed inside the slide rod. A first convex plate is fixedly installed on the body of the second ball joint rod, a second spring is disposed between the first convex plate and the slide rod, and a pull ring is fixedly installed through the end of the second ball joint rod. A second convex plate is fixedly installed on the body of the third ball joint rod, a third spring is disposed between the second convex plate and the slide rod, and an insert block is fixedly installed at the end of the third ball joint rod.

[0005] Preferably, the sphere is formed by welding two hemispheres together.

[0006] Preferably, the rib has a cross-shaped structure and a hollow design.

[0007] Preferably, the outer surface of the movable cylinder is provided with a strip-shaped protrusion, and the fixed cylinder is provided with a groove that mates with the strip-shaped protrusion.

[0008] Preferably, the size of the limiting block is larger than the size of the threaded hole of the auxiliary nut, and the limiting block is located above the auxiliary nut.

[0009] Preferably, an auxiliary roller is rotatably mounted on the slide bar, and the outer surface of the auxiliary roller is provided with anti-slip texture.

[0010] Preferably, there are two plug blocks, and the two plug blocks can be plugged into the connecting plate.

[0011] Preferably, the drive shaft has grooves for passing through both ends of the connecting rod, and both ends of the grooves are closed.

[0012] Preferably, the friction block has a ring structure design, and the side of the friction block is provided with friction texture to enhance friction.

[0013] Preferably, the two ends of the second spring are fixedly connected to the first convex plate and the slide rod, respectively, and the two ends of the third spring are fixedly connected to the second convex plate and the slide rod, respectively.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This invention connects the node structure by setting up an adjustment component and an operation component. By using the lead screw in the adjustment component, the movable cylinder can be moved up and down inside the fixed cylinder, which can achieve precise adjustment of the position of the node structure. At the same time, the friction texture on the surface of the friction block contained in the operation component and the elasticity of the spring increase the friction force to lock the overall structure, thereby improving the overall stability of the device.

[0016] 2. In the node structure of this invention, steel fiber reinforced concrete can be injected into the interior of the sphere through the casting holes on the sphere to enhance the overall strength of the node. It is suitable for large-span space frame structures. Furthermore, the ribs welded to the inner side of the sphere can enhance the circumferential strength of the node and significantly improve the tensile ultimate load. At the same time, the design of the vent holes can ensure the uniform distribution of the filling material and avoid the phenomenon of pore defects in the injected steel fiber reinforced concrete. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2This is an exploded view of the node structure of the present invention;

[0019] Figure 3 This is a cross-sectional schematic diagram of the movable cylinder structure of the present invention;

[0020] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0021] Figure 5 This is an exploded view of the lead screw structure of the present invention;

[0022] Figure 6 This is a cross-sectional schematic diagram of part of the structure of the present invention;

[0023] Figure 7 This is an exploded view of the slide bar structure of the present invention;

[0024] Figure 8 This is a cross-sectional schematic diagram of the slide bar structure of the present invention;

[0025] Figure 9 for Figure 8 Enlarged schematic diagram of the structure at point B;

[0026] Figure 10 This is an exploded view of the auxiliary roller structure of the present invention.

[0027] In the diagram: 1. Node structure; 11. Sphere; 12. Anchor bolt; 13. Casting hole; 14. Vent hole; 15. Support; 16. Rib; 2. Adjustment assembly; 21. Movable cylinder; 22. Fixed cylinder; 23. Flange; 24. Limit block; 25. Lead screw; 26. Auxiliary nut; 27. Mounting plate; 28. Driven shaft; 29. ​​Secondary bevel gear; 210. Main bevel gear; 211. Drive shaft; 3. Operating components; 31. Connecting plate; 32. Auxiliary roller; 33. Slide rod; 34. Spherical protrusion; 35. First ball head rod; 36. First spring; 37. Friction block; 38. Connecting rod; 39. Insert block; 310. Stop block; 311. Pull ring; 312. Second ball head rod; 313. First convex plate; 314. Second spring; 315. Third ball head rod; 316. Third spring; 317. Second convex plate. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-10This invention provides a technical solution: an arc-shaped space frame splicing connection structure, including a node structure 1, the node structure 1 including a sphere 11, the sphere 11 having a rib plate 16 inside, the outer surface of the sphere 11 being welded with anchor bolts 12 and support seats 15, and the sphere 11 also having a casting hole 13 and a vent hole 14; the sphere 11 is integrally formed by welding two hemispheres together, the rib plate 16 has a cross-shaped structure design and a hollow design, the rib plate 16 can effectively improve the stability of the entire node structure 1, thereby improving the stability of the subsequent space frame splicing.

[0030] An adjustment assembly 2 is provided at the bottom of node structure 1. The adjustment assembly 2 includes a movable cylinder 21 fixedly connected to the support 15. A fixed cylinder 22 is slidably connected to the movable cylinder 21. A flange 23 is fixedly installed at the lower end of the fixed cylinder 22, and an mounting plate 27 is fixedly installed on the inner wall of the fixed cylinder 22. A driven shaft 28 is rotatably mounted on the mounting plate 27. A lead screw 25 is fixedly installed at the upper end of the driven shaft 28, and a secondary bevel gear 29 is fixedly installed at the lower end of the driven shaft 28. The secondary bevel gear 29 meshes with and drives a main bevel gear 210. A component is fixedly installed on the main bevel gear 210 that is connected to the fixed cylinder 22. The active shaft 211 is rotatably connected. An auxiliary nut 26, which is threadedly connected to the lead screw 25, is fixedly installed on the side wall of the inner cavity of the movable cylinder 21. A limit block 24 is fixedly installed on the upper end of the lead screw 25. A strip-shaped protrusion is provided on the outer surface of the movable cylinder 21. A groove that mates with the strip-shaped protrusion is provided on the fixed cylinder 22. The size of the limit block 24 is larger than the threaded hole size of the auxiliary nut 26. The limit block 24 is located above the auxiliary nut 26. The limit block 24 can prevent the movable cylinder 21 from detaching, further improving the stability of the overall structural design and ensuring that the node structure 1 can be stably adjusted in position.

[0031] The fixed cylinder 22 is also provided with an operating component 3. The operating component 3 includes a connecting plate 31 fixedly connected to the drive shaft 211, and a first ball joint 35 slidably disposed inside the drive shaft 211. A connecting rod 38 is fixedly installed on the end face of the first ball joint 35. A friction block 37 is fixedly installed on the end of the connecting rod 38, and a first spring 36 is fixedly installed on the side of the connecting rod 38. The end of the first spring 36 is also fixedly connected to the drive shaft 211. A slide rod 33 is slidably disposed on the connecting plate 31. A spherical protrusion 34 is fixedly installed on the side of the slide rod 33. A stop block 310 is fixedly installed on the outer surface of the slide rod 33. A second ball joint 312 and a third ball joint 315 are slidably disposed inside the slide rod 33. A first convex plate 313 is fixedly installed on the body of the second ball joint 312. A second spring 314 is disposed between the first convex plate 313 and the slide rod 33. A second ball joint 312 passes through the end of the slide rod 33 and is fixedly installed with a... A second convex plate 317 is fixedly installed on the body of the pull ring 311 and the third ball head rod 315. A third spring 316 is provided between the second convex plate 317 and the slide rod 33. An insert block 39 is fixedly installed at the end of the third ball head rod 315. An auxiliary roller 32 is rotatably provided on the slide rod 33. The outer surface of the auxiliary roller 32 is provided with anti-slip texture, which facilitates the user to make corresponding adjustments using the auxiliary roller 32 to meet the actual use requirements. There are two insert blocks 39. The two insert blocks 39 can be inserted into the connecting plate 31. The drive shaft 211 is provided with a sliding groove for passing through both ends of the connecting rod 38. Both ends of the sliding groove are closed. The friction block 37 is a ring structure design. The side of the friction block 37 is provided with friction texture to enhance the friction. The two ends of the second spring 314 are fixedly connected to the first convex plate 313 and the slide rod 33 respectively. The two ends of the third spring 316 are fixedly connected to the second convex plate 317 and the slide rod 33 respectively.

[0032] Working principle: Ribs 16 are set inside the sphere 11, and anchor bolts 12 connected to the grid are welded on the sphere 11. At the same time, pouring holes 13 and ventilation holes 14 are opened on the sphere 11, so steel fiber concrete can be poured into the sphere 11 to improve the strength of the entire node structure 1.When the height of node structure 1 needs to be adjusted, pull the pull ring 311. The second ball joint 312, which is fixedly connected to the slide rod 33, slides inside the slide rod 33, causing the ball end of the second ball joint 312 to disengage from the ball end of the third ball joint 315. Because the end of the third ball joint 315 is fixed with a plug block 39 that can be inserted into the connecting plate 31, and the body of the third ball joint 315 is fixed with a second protruding plate 317, the second protruding plate 317 which is slidably connected to the slide rod 33 is further connected to the slide rod 33 by a third spring 316. Under the tension of the third spring 316, the plug block 39 can be pulled to slide into the slide rod 33, causing the plug block 39 to disengage from the connecting plate 31. At this time, the slide rod 33 can be pushed to slide on the connecting plate 31, so that the slide rod 33 is in a position where... At the lower end of the connecting plate 31, the pull ring 311 is released. The first protrusion 313 is also fixed on the body of the second ball joint 312. The first protrusion 313 is further connected to the slide rod 33 by the second spring 314. Under the action of the second spring 314, the second ball joint 312 will slide in the opposite direction. The ball end of the second ball joint 312 can squeeze the third ball joint 315 to push the insert block 39 into the interior of the connecting plate 31. When the slide rod 33 is at the lower end of the connecting plate 31, the spherical protrusion 34 on the side of the slide rod 33 is misaligned with the ball end of the first ball joint 35. The end of the first ball joint 35, which is slidably connected to the drive shaft 211, is fixed with the connecting rod 38. The end of the connecting rod 38 is also fixed with the friction block 37. The connecting rod 38 and the drive shaft 211 are also connected by the first ball joint 312. With the first spring 36 further connected, when the first ball joint 35 is misaligned with the spherical protrusion 34, the friction block 37 is pulled to slide under the action of the first spring 36, creating a gap between the friction block 37 and the fixed cylinder 22. At this time, the auxiliary roller 32 and the slide rod 33 drive the connecting plate 31 to rotate, and the drive shaft 211, which is fixedly connected to the connecting plate 31, rotates together inside the fixed cylinder 22. Since the main bevel gear 210 at the end of the drive shaft 211 meshes with the secondary bevel gear 29 at the end of the driven shaft 28, and the driven shaft 28, which is rotatably mounted on the mounting plate 27, is also fixedly connected to the lead screw 25, after the connecting plate 31 drives the drive shaft 211 to rotate, the main bevel gear 210, the secondary bevel gear 29, and the driven shaft 28 are connected to each other. Driven by shaft 28, lead screw 25 rotates inside fixed cylinder 22. Simultaneously, an auxiliary nut 26, threadedly connected to lead screw 25, is fixed inside the movable cylinder 21, which is slidably connected to fixed cylinder 22. Therefore, after lead screw 25 rotates, movable cylinder 21 can slide on fixed cylinder 22. A support 15, welded to ball 11, is fixed to the end of movable cylinder 21. After movable cylinder 21 slides, the position and height of node structure 1 can be adjusted. This, in turn, pushes slide rod 33 to slide, using the spherical protrusion 34 of slide rod 33 to press the first ball head rod 35, eliminating the gap between friction block 37 and fixed cylinder 22. This causes the friction texture on the side of friction block 37 to make close contact with fixed cylinder 22, generating a certain frictional force, locking the internal structure, and thus locking the position of node structure 1.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A curved surface space frame splicing and connection structure, characterized in that: The system includes a node structure (1), which includes a sphere (11). The sphere (11) has a rib plate (16) inside, and the outer surface of the sphere (11) is welded with anchor bolts (12) and support bases (15). The sphere (11) also has a casting hole (13) and a vent hole (14). An adjustment assembly (2) is provided at the bottom of the node structure (1). The adjustment assembly (2) includes a movable cylinder (21) fixedly connected to the support (15). A fixed cylinder (22) is slidably connected to the movable cylinder (21). A flange (23) is fixedly installed at the lower end of the fixed cylinder (22). An installation plate (27) is fixedly installed on the inner wall of the fixed cylinder (22). A driven shaft (28) is rotatably arranged on the installation plate (27). The upper end of the driven shaft (28) is fixedly installed with... There is a lead screw (25), and a secondary bevel gear (29) is fixedly installed at the lower end of the driven shaft (28). The secondary bevel gear (29) is meshed with a main bevel gear (210). A drive shaft (211) that is rotatably connected to the fixed cylinder (22) is fixedly installed on the main bevel gear (210). An auxiliary nut (26) that is threadedly connected to the lead screw (25) is fixedly installed on the side wall of the inner cavity of the movable cylinder (21). A limit block (24) is fixedly installed at the upper end of the lead screw (25). The fixed cylinder (22) is also provided with an operating component (3). The operating component (3) includes a connecting plate (31) fixedly connected to the drive shaft (211) and a first ball joint rod (35) slidably disposed inside the drive shaft (211). A connecting rod (38) is fixedly installed on the end face of the first ball joint rod (35). A friction block (37) is fixedly installed at the end of the connecting rod (38), and a first spring (36) is fixedly installed on the side of the connecting rod (38). The end of the first spring (36) is also fixedly connected to the drive shaft (211). A sliding rod (33) is slidably disposed on the connecting plate (31). A spherical protrusion (34) is fixedly installed on the side of the sliding rod (33). The outer surface of the sliding rod (33) is... A stop block (310) is fixedly installed on the surface. A second ball joint (312) and a third ball joint (315) are slidably arranged inside the slide rod (33). A first convex plate (313) is fixedly installed on the body of the second ball joint (312). A second spring (314) is arranged between the first convex plate (313) and the slide rod (33). A pull ring (311) is fixedly installed at the end of the second ball joint (312) through the slide rod (33). A second convex plate (317) is fixedly installed on the body of the third ball joint (315). A third spring (316) is arranged between the second convex plate (317) and the slide rod (33). An insert block (39) is fixedly installed at the end of the third ball joint (315).

2. The arc-shaped space frame splicing connection structure according to claim 1, characterized in that: The sphere (11) is formed by welding two hemispheres together.

3. The arc-shaped space frame splicing connection structure according to claim 1, characterized in that: The rib (16) has a cross-shaped structure and a hollow design.

4. The arc-shaped space frame splicing connection structure according to claim 1, characterized in that: The outer surface of the movable cylinder (21) is provided with a strip-shaped protrusion, and the fixed cylinder (22) is provided with a groove that cooperates with the strip-shaped protrusion.

5. The arc-shaped space frame splicing connection structure according to claim 1, characterized in that: The size of the limiting block (24) is larger than the thread hole size of the auxiliary nut (26), and the limiting block (24) is located above the auxiliary nut (26).

6. The arc-shaped space frame splicing connection structure according to claim 1, characterized in that: An auxiliary roller (32) is rotatably mounted on the slide bar (33), and the outer surface of the auxiliary roller (32) is provided with anti-slip texture.

7. The arc-shaped space frame splicing connection structure according to claim 1, characterized in that: There are two plugs (39), and the two plugs (39) can be plugged into the connecting plate (31).

8. The arc-shaped space frame splicing connection structure according to claim 1, characterized in that: The drive shaft (211) has grooves for passing through both ends of the connecting rod (38), and both ends of the grooves are closed.

9. The arc-shaped space frame splicing connection structure according to claim 1, characterized in that: The friction block (37) has a ring structure design, and the side of the friction block (37) is provided with friction texture to enhance friction.

10. The arc-shaped space frame splicing connection structure according to claim 1, characterized in that: The two ends of the second spring (314) are fixedly connected to the first convex plate (313) and the slide rod (33) respectively, and the two ends of the third spring (316) are fixedly connected to the second convex plate (317) and the slide rod (33) respectively.

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