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CN-121976609-A - Quick-mounting type connecting node of steel structure

CN121976609ACN 121976609 ACN121976609 ACN 121976609ACN-121976609-A

Abstract

The invention relates to the technical field of constructional engineering, in particular to a quick-assembly type connecting node of a steel structure, which comprises a hub body, rod bodies and fixing components, wherein a plurality of embedded grooves are formed in the side wall of the hub body, the number of the rod bodies is a plurality, connectors are fixedly arranged at the end parts of each rod body, two adjusting rods capable of linearly stretching and displacing relative to the rod bodies are inserted into each connector, the free ends of the two adjusting rods on the same connector are embedded in the same embedded groove and are mutually matched and locked with the groove side wall of the same embedded groove, and the fixing components penetrate through central holes penetrating through the upper surface and the lower surface of the hub body to fix the hub body and the rod bodies. In the use, two adjustable poles on the same connector have different extension lengths, make the body of rod adaptable different specification's hub body, and adjust pole and connector and be the general spare to just can realize standardized batch production in the production stage, do benefit to the efficiency of building of assurance embedded hub node.

Inventors

  • LU JIE
  • LIU GUIYUAN
  • TAN ZIHAO
  • LI WEIYONG
  • LIN BIN
  • ZHANG ZHAOZUO
  • WU JIANHUI
  • YAN SHENGYOU
  • Lan Houli
  • TIAN ZHUANG

Assignees

  • 中铁建工集团第五建设有限公司
  • 中铁建工集团有限公司
  • 中国铁路广州局集团有限公司站房建设指挥部

Dates

Publication Date
20260505
Application Date
20260408

Claims (10)

  1. 1. A quick-connect node for a steel structure, comprising: The hub comprises a hub body (1), wherein a plurality of embedded grooves (102) are formed in the side wall of the hub body (1); The two adjustable rods (5) capable of linearly stretching and displacing relative to the rod bodies (2) are inserted into each connector (4), the free ends of the two adjustable rods (5) on the same connector (4) are embedded in the same embedded groove (102), and are mutually matched and locked with the groove side walls of the same embedded groove (102); the fixing component (3) is used for fixing the hub body (1) and the rod body (2) through a central hole (101) penetrating through the upper surface and the lower surface of the hub body (1); two adjusting rods (5) on the same connector (4) are adjusted to have different extending lengths, so that the rod body (2) can be matched with hubs (1) of different specifications.
  2. 2. The quick-fit connection node of a steel structure according to claim 1, characterized in that the adjusting rod (5) is of a ball stud structure and is provided with a ball head part (501) embedded in the embedded groove (102), a screwing part (502) mutually matched and locked with the side wall of the embedded groove (102) and a threaded rod part (503) matched with the connector (4) in a threaded mode.
  3. 3. The quick-assembling type connecting joint of the steel structure according to claim 2, wherein a first nut (6) is sleeved on the threaded rod part (503) of each adjusting rod (5) in a threaded manner, and the first nut (6) can be contacted with the end face of the connecting head (4) so as to lock the extending length of the adjusting rod (5).
  4. 4. The quick-connect joint of steel structures according to claim 2, characterized in that the fixing assembly (3) comprises: An upper gland (301) is arranged at the top of the hub body (1), a plurality of limit bolts (302) are threaded on the upper gland, the rod parts of the limit bolts (302) are inserted into the embedded grooves (102), and a first ball groove (3021) which is matched with the ball head part (501) of the upper adjusting rod (5) is arranged at the bottom of the upper gland; The lower gland (303) is arranged at the bottom of the hub body (1), the top of the lower gland is provided with a plurality of supporting seats (3031), the supporting seats (3031) are inserted into the embedded grooves (102), and the top of the lower gland is provided with a second ball groove (30311) which is matched with the ball head part (501) of the lower adjusting rod (5); A central bolt (304) passing through the central hole (101) and having its nut stopped on top of the upper gland (301); the second nut (305) is in threaded connection with the central bolt (304) and is stopped at the bottom of the lower gland (303).
  5. 5. The quick-mounting connecting node of a steel structure according to claim 4, characterized in that an elastic telescopic rod (7) is arranged between the ball head parts (501) of two adjusting rods (5) on each connector (4), the elastic telescopic rod (7) is inserted in the embedded groove (102), a third ball groove (7011) matched with the ball head part (501) of the upper adjusting rod (5) is arranged at the upper end part of the elastic telescopic rod (7), the third ball groove (7011) and the first ball groove (3021) jointly form a positioning and clamping structure of the ball head part (501) of the upper adjusting rod (5), a fourth ball groove (7021) matched with the ball head part (501) of the lower adjusting rod (5) is arranged at the lower end part of the elastic telescopic rod (7), and the fourth ball groove (7021) and the second ball groove (30311) jointly form a positioning and clamping structure of the ball head part (501) of the lower adjusting rod (5).
  6. 6. The steel structure quick connect node according to claim 5, characterized in that the elastic telescopic rod (7) comprises: The upper rod body (701) is provided with a plurality of first sliding blocks (7012) at intervals along the circumferential direction, and a first sliding groove (7013) is formed between every two adjacent first sliding blocks (7012); The lower rod body (702) is provided with a plurality of second sliding blocks (7022) at intervals along the circumferential direction, the second sliding blocks (7022) are slidably inserted in the first sliding grooves (7013), second sliding grooves (7023) are formed between adjacent second sliding blocks (7022), and the first sliding blocks (7012) are slidably inserted in the second sliding grooves (7023); And an elastic element (703) disposed between the upper rod (701) and the lower rod (702) and configured to cause the upper rod (701) and the lower rod (702) to have a tendency to be apart from each other.
  7. 7. The quick-fit connection node of a steel structure according to claim 6, wherein the cross-sectional shapes of the upper rod body (701) and the lower rod body (702) are adapted to the cross-sectional shape of the insertion groove (102) so that the side walls of the upper rod body (701) and the lower rod body (702) are locked in cooperation with the groove side walls of the insertion groove (102).
  8. 8. The quick-assembling connecting node of the steel structure according to claim 7, wherein a first clamping protrusion (70121) is arranged on the bottom wall of the first sliding block (7012), the first clamping protrusion (70121) and the groove side wall of the embedded groove (102) are mutually matched and locked, a second clamping protrusion (70221) is arranged on the top wall of the second sliding block (7022), and the second clamping protrusion (70221) and the groove side wall of the embedded groove (102) are mutually matched and locked.
  9. 9. The steel structure quick connect node of claim 8, wherein the first slider (7012) and the second slider (7022) are both inclined and have equal inclination.
  10. 10. The steel structure quick connect node of claim 4, wherein the top of the upper gland (301) projects upwardly with an upper boss (3011) and the bottom of the lower gland (303) projects downwardly with a lower boss (3032).

Description

Quick-mounting type connecting node of steel structure Technical Field The invention relates to the technical field of constructional engineering, in particular to a quick-assembling type connecting node of a steel structure. Background The embedded hub node is a connection node form with definite structural characteristics and function positioning in steel structure engineering, the core principle is based on an insertion assembly mode of a hub body and a rod piece, and the embedded groove preset in the hub body and a matched embedded piece at the end part of the rod piece form tight occlusion so as to realize high-rigidity and high-stability connection of the node. The main components of the embedded hub node comprise a hub body, a rod end embedded piece, a rod body, a central bolt, a nut, a gland, a flat gasket, a spring gasket and the like. The hub body is a core bearing foundation, the surface of the hub body is provided with embedded grooves matched with the number and the angle of the rod pieces in advance, the size and the shape of the embedded grooves are accurately matched with those of the rod end embedded pieces, the end parts of the rod pieces are required to be welded and fixed with the rod end embedded pieces in advance, the welded rod end embedded pieces are embedded into the corresponding embedded grooves on the hub body in a mechanical engagement mode during assembly, and then axial compression force is applied to the rod end embedded pieces through the synergistic effect of auxiliary components such as a central bolt, a nut, a gland, a flat gasket and a spring gasket, so that no relative displacement is caused between the rod end embedded pieces and the embedded grooves, and finally a complete node connection system is formed. However, when the existing embedded hub nodes are applied to the reticulated shell structure, the reticulated shell structure is formed by interweaving a large number of rod pieces with different space orientations, the embedded hub nodes at different height positions are required to be connected with the rod pieces with different space orientations respectively, different space included angles are formed between the hub axis of each embedded hub node and the central line of the connected rod body, and then rod end embedded parts are required to be independently designed and respectively processed according to different specifications, so that standardized batch production cannot be realized, and the construction efficiency of the embedded hub nodes is affected. Disclosure of Invention Based on the above, it is necessary to provide a steel-structured quick-assembling type connection node for solving the problem of low construction efficiency of the existing embedded hub node. The above purpose is achieved by the following technical scheme: A quick connect node for a steel structure, comprising: The side wall of the hub body is provided with a plurality of embedded grooves; The end part of each rod body is fixedly provided with a connector, each connector is inserted with two adjusting rods which can linearly stretch and retract relative to the rod body, and the free ends of the two adjusting rods on the same connector are embedded in the same embedded groove and are mutually matched and locked with the side wall of the same embedded groove; the fixing assembly is used for fixing the hub body and the rod body through a central hole penetrating through the upper surface and the lower surface of the hub body; Two adjusting rods on the same connecting head are adjusted to have different extending lengths, so that the rod body can be adapted to hubs of different specifications. Further, the adjusting rod is of a ball stud structure and is provided with a ball head part embedded in the embedded groove, a screwing part mutually matched and locked with the side wall of the embedded groove and a threaded rod part in threaded fit with the connector. Further, the threaded rod part of each adjusting rod is sleeved with a first nut in a threaded mode, and the first nut can be in contact with the end face of the connector to lock the extending length of the adjusting rod. Further, the fixing assembly includes: The upper gland is arranged at the top of the hub body, a plurality of limit bolts are threaded on the upper gland, the rod parts of the limit bolts are inserted into the embedded grooves, and the bottom of the upper gland is provided with a first ball groove matched with the ball head part of the upper adjusting rod; the lower gland is arranged at the bottom of the hub body, the top of the lower gland is provided with a plurality of supporting seats, the supporting seats are inserted into the embedded grooves, and the top of the lower gland is provided with a second ball groove which is matched with the ball head part of the lower adjusting rod; the central bolt passes through the central hole, and the nut of the central bolt stops at the top of the upper gland; the second