A connecting device for a steel structure joint

CN123027898APending Publication Date: 2026-11-03THE FIRST CONSTR ENG COMPANY LTD OF CHINA CONSTR SECOND ENG BUREAU +1
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Patent Information

Application Number
CN202611370015.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-09-04
Publication Date
2026-11-03

AI Technical Summary

Technical Problem

Existing steel structure node connection devices are not convenient for adjusting the number of connections according to the connection position, lack stability, and are difficult to effectively clamp and limit.

Method used

It adopts a combination of hollow frame, U-shaped insert plate, limiting plate and threaded rod, etc., and realizes multi-directional connection and clamping of steel structure through threaded connection and adjustment of limiting plate to adapt to different working conditions.

Benefits of technology

It enables flexibility in adjusting the number of connections based on the connection location, improves the stability and applicability of the device, and ensures the reliability and stability of the steel structure connections.

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Abstract

The application discloses a connecting device for a steel structure joint and relates to the technical field of steel structure joints, which comprises a hollow frame, four grooves are formed in the outer side edges of the hollow frame, a fixed column is fixedly connected to the center of the inner cavity of the hollow frame, U-shaped inserting plates are arranged in the grooves, the hollow frame is first moved to the steel structure joint, then the four U-shaped inserting plates are penetrated through the grooves on the surface of the hollow frame, the U-shaped inserting plates are sleeved on the surface of the fixed column in the hollow frame, the limiting plates are respectively arranged on the top and bottom of the hollow frame, the first threaded rods on one side of the limiting plates are penetrated through the connecting holes on the hollow frame and the through holes on the U-shaped inserting plates, if the steel structures above or below do not need to be connected, the L-shaped plates do not need to be arranged on one side of the limiting plates, at this time, the nuts are rotated to the surface of the first threaded rods, so that the limiting plates above and below are limited, and then the four U-shaped inserting plates are limited, so that the U-shaped inserting plates are prevented from loosening and falling off.
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Description

Technical Field

[0001] This invention relates to the field of steel structure node technology, specifically to a connection device for steel structure nodes. Background Technology

[0002] Steel structure node connection devices are key components used to connect various parts of a steel structure. They ensure the integrity and load-bearing capacity of the structure. These connection devices typically need to have high strength, good durability, and the ability to adapt to different working conditions.

[0003] However, existing steel structure node connection devices have some problems in use. The existing connection devices are not convenient to adjust the number of connected steel structure nodes according to the location of the connection, which reduces the applicability of the device. At the same time, the existing connection devices are not stable enough and are not convenient to further clamp and limit the steel structure. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the purpose of the present invention is to provide a connection device for steel structure nodes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a connecting device for steel structure nodes, comprising a hollow frame, four slots on the outer edge of the hollow frame, a fixed column fixedly connected to the center of the inner cavity of the hollow frame, U-shaped inserts penetrating through each slot, the U-shaped inserts being fitted onto the outer edge of the fixed column, four through holes on each U-shaped insert, a fixed plate fixedly connected to the side of the U-shaped insert away from the fixed column, two sliding grooves on the side of the fixed plate away from the hollow frame, sliders movably connected in each sliding groove, a swing block fixedly connected to the side of the slider away from the fixed plate, a U-shaped block hinged to the outer edge of each swing block, two U-shaped plates on the side of the fixed plate away from the hollow frame, two adjacent U-shaped plates being arranged vertically, and one side of the U-shaped block being fixedly connected to the outer edge of the U-shaped plate.

[0006] Preferably, each of the U-shaped plates has four first threaded holes, and each first threaded hole is threaded with a bolt. Each of the outer edges of the U-shaped plates has two movable grooves, and each movable groove is movably connected to a movable block. Each movable block is fixedly connected to a movable plate on the side away from the U-shaped plate. Each movable plate has a second threaded hole, and two second threaded holes on the same side are threaded with a second threaded rod. Each second threaded rod has a first spring sleeved on its outer edge. The first spring is located between two adjacent movable plates. The top end of the first spring is fixedly connected to the bottom of the upper movable plate, and the bottom end of the first spring is fixedly connected to the top of the lower movable plate.

[0007] Preferably, the hollow frame has four connecting holes at the top and bottom, and a limiting plate is attached to the top and bottom of the hollow frame. Each limiting plate has two limiting holes, and two first threaded rods are fixedly connected to the side of the limiting plate near the hollow frame. The end of the first threaded rod away from the limiting plate passes through the adjacent connecting hole, through hole and limiting hole.

[0008] Preferably, the limiting plate is provided with two L-shaped plates on the side away from the hollow frame. The inner wall of the L-shaped plate is fixedly connected to the side of the limiting plate. The connecting plate is provided with vertical holes, which are sleeved on the outer edge of the adjacent first threaded rod. The connecting plate is provided with nuts on the side away from the limiting plate, and the nuts are threadedly connected to the outer edge of the adjacent first threaded rod.

[0009] Preferably, each of the L-shaped plates has two movable slots on its inner cavity sidewalls, and each movable slot has a movable block movably connected to it. Two adjacent movable blocks are fixedly connected to a T-shaped plate. Each movable block has a second spring fixedly connected to its top, and the top of the second spring is fixedly connected to the top of the adjacent movable slot. Each T-shaped plate has a groove on its side away from the movable block, and each groove has a magnet fixedly connected to it. Two adjacent magnets are fitted together.

[0010] Preferably, four third threaded holes are provided on the outer edges of the two L-shaped plates on the same side, and four third threaded rods are provided between the two L-shaped plates on the same side. The end of the third threaded rod closest to the L-shaped plate is threaded through the adjacent third threaded hole.

[0011] Preferably, each of the inner walls of the L-shaped plate is provided with two clamping plates, and each of the L-shaped plates is provided with four fourth threaded holes. Two fourth threaded rods are inserted into the side of each clamping plate near the side wall of the L-shaped plate, and the end of each fourth threaded rod away from the clamping plate is threaded through the adjacent fourth threaded hole.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes the interplay between a hollow frame, U-shaped inserts, limiting plates, and a first threaded rod to achieve the following: first, the hollow frame is moved to the steel structure node; then, four U-shaped inserts are inserted through slots in the surface of the hollow frame; the U-shaped inserts are fitted onto the surface of the fixed column inside the hollow frame; the limiting plates are placed at the top and bottom of the hollow frame; and the first threaded rod on one side of the limiting plate is inserted through the connecting hole on the hollow frame and the through hole on the U-shaped insert. If it is not necessary to connect the upper or lower steel structure, the L-shaped plate does not need to be placed on the side of the limiting plate. In this case, the nut is rotated to the surface of the first threaded rod to limit the upper and lower limiting plates, thereby limiting the four U-shaped inserts and preventing them from loosening and falling off. When it is necessary to connect the upper or lower steel structure, place the L-shaped plate on one side of the limiting plate, put the connecting plate on the L-shaped plate onto the surface of the first threaded rod, and then rotate the nut to the surface of the first threaded rod. The nut will limit the connecting plate, and then limit the L-shaped plate. Move one side of the vertical steel structure into the two L-shaped plates on the same side. The steel structure will drive the T-shaped plate to move. One end of the third threaded rod is threaded through the threaded hole on the adjacent L-shaped plate and threaded through the threaded hole on the vertical steel structure. Finally, it is threaded through the threaded hole on the L-shaped plate on the other side, thus initially limiting the vertical steel structure. The clamping plate will clamp the vertical steel structure, thus completing the connection and installation of the vertical steel structure. When installing a transverse steel structure, place one side of the transverse steel structure between two U-shaped plates on the same side, bring the U-shaped plates close to the transverse steel structure, and fit the U-shaped plates onto the surface of the transverse steel structure. Thread the second threaded rod through the two movable plates on the same side to limit the movable plates and U-shaped plates. Then rotate the bolts to the surface of the transverse steel structure to connect and install the transverse steel structure. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention; Figure 2 This is a bottom-view perspective view of the present invention; Figure 3 These are illustrations of the various forms of this invention; Figure 4 This is a multi-form bottom-view illustration of the present invention; Figure 5 This is an exploded view of the present invention; Figure 6 This is a bottom view of the hollow frame structure of the component of the present invention; Figure 7 This is a schematic diagram of the rear view of the hollow frame structure of the component of the present invention; Figure 8 This is a partial cross-sectional view of the hollow frame of the component of the present invention; Figure 9 This is an exploded view of the component fixing plate of the present invention; Figure 10 This is a schematic diagram of the U-shaped plate structure of the component of the present invention; Figure 11 This is a schematic diagram of the movable plate structure of the component of the present invention; Figure 12 This is a bottom view of the L-shaped plate structure of the component of the present invention; Figure 13 This is a top view of the T-shaped plate of the present invention; Figure 14 This is a schematic diagram of the L-shaped plate structure of the component of the present invention; Figure 15 This is a bottom view of the connecting plate structure of the component of the present invention; Figure 16 This is a schematic diagram of the second spring structure of the component of the present invention.

[0014] The following are the labels in the diagram: 1. Hollow frame; 2. U-shaped insert plate; 3. Fixed plate; 4. U-shaped plate; 5. Limiting plate; 6. First threaded rod; 7. Nut; 8. L-shaped plate; 9. Fixed column; 10. Bolt; 11. Movable plate; 12. U-shaped block; 13. Swinging block; 14. Sliding block; 15. First spring; 16. Second threaded rod; 17. Movable block; 18. Third threaded rod; 19. Fourth threaded rod; 20. Connecting plate; 21. T-shaped plate; 22. Clamping plate; 23. Magnet; 24. Moving block; 25. Second spring. Detailed Implementation

[0015] Please see Figure 1-16 This invention provides a technical solution: a connecting device for steel structure nodes, including a hollow frame 1. Four slots are formed on the outer edge of the hollow frame 1. A fixed post 9 is fixedly connected to the center of the inner cavity of the hollow frame 1. U-shaped insert plates 2 are inserted through each slot, and the U-shaped insert plates 2 are fitted onto the outer edge of the fixed post 9. Each U-shaped insert plate 2 has four through holes. A fixed plate 3 is fixedly connected to the side of the U-shaped insert plate 2 away from the fixed post 9. Two sliding grooves are formed on the side of the fixed plate 3 away from the hollow frame 1. A slider 14 is movably connected to each sliding groove. A swing block 13 is fixedly connected to the side of the slider 14 away from the fixed plate 3. A U-shaped block 12 is hinged to the outer edge of each swing block 13. Two U-shaped plates 4 are formed on the side of the fixed plate 3 away from the hollow frame 1. Two adjacent U-shaped plates 4 are arranged vertically. One side of the U-shaped block 12 is fixedly connected to the outer edge of the U-shaped plate 4. Each U-shaped plate 4 has four first threaded holes, and screws are threaded into each of the first threaded holes. Two movable grooves are opened on the outer edge of the bolt 10 and the U-shaped plate 4. Movable blocks 17 are movably connected in the movable grooves. Movable plates 11 are fixedly connected to the side of the movable blocks 17 away from the U-shaped plate 4. The movable plates 11 are provided with second threaded holes. Two second threaded rods 16 are threadedly connected in the two second threaded holes on the same side. The outer edge of the second threaded rods 16 is fitted with first springs 15. The first springs 15 are located between two adjacent movable plates 11. The top of the first springs 15 is fixedly connected to the bottom of the upper movable plate 11. The bottom of the first springs 15 is fixedly connected to the top of the lower movable plate 11. Four connecting holes are opened on the top and bottom of the hollow frame 1. Limiting plates 5 are attached to the top and bottom of the hollow frame 1. Two limiting holes are opened on the limiting plates 5. Two first threaded rods 6 are fixedly connected to the side of the limiting plates 5 near the hollow frame 1. The end of the first threaded rod 6 away from the limiting plate 5 passes through the adjacent connecting hole, through hole and limiting hole. Two L-shaped plates 8 are provided on the side of the limiting plate 5 away from the hollow frame 1. A connecting plate 20 is fixedly connected to the inner wall of each L-shaped plate 8 near the limiting plate 5. Each connecting plate 20 has a vertical hole that fits onto the outer edge of the adjacent first threaded rod 6. A nut 7 is provided on the side of each connecting plate 20 away from the limiting plate 5, and the nut 7 is threaded onto the outer edge of the adjacent first threaded rod 6. Two movable slots are provided on the inner wall of each L-shaped plate 8, and movable blocks 24 are movably connected within each slot. Two adjacent movable blocks 24 are jointly fixedly connected to a T-shaped plate 21. A second spring 25 is fixedly connected to the top of each movable block 24, and the top of the second spring 25 is fixedly connected to the top of the adjacent movable slot. The side of the mold plate 21 away from the moving block 24 is provided with a groove, and a magnet 23 is fixedly connected in the groove. Two adjacent magnets 23 are fitted together. Four third threaded holes are provided on the outer edge of the two L-shaped plates 8 on the same side. Four third threaded rods 18 are provided between the two L-shaped plates 8 on the same side. The end of the third threaded rod 18 near the L-shaped plate 8 is threaded through the adjacent third threaded hole. Two clamping plates 22 are provided on the inner wall of the L-shaped plate 8. Four fourth threaded holes are provided on the L-shaped plate 8. Two fourth threaded rods 19 are inserted into the side of the clamping plate 22 near the side wall of the L-shaped plate 8. The end of the fourth threaded rod 19 away from the clamping plate 22 is threaded through the adjacent fourth threaded hole.

[0016] Working principle: When the device starts working, first move the hollow frame 1 to the steel structure node, then insert four U-shaped plates 2 through the slots on the surface of the hollow frame 1. The U-shaped plates 2 fit onto the surface of the fixing column 9 inside the hollow frame 1. Fit one side of the fixing plate 3 against the surface of the hollow frame 1. Take out two limiting plates 5 and place them at the top and bottom of the hollow frame 1 respectively. Insert the first threaded rod 6 on one side of the limiting plate 5 through the connecting hole on the hollow frame 1 and the through hole on the U-shaped plate 2. If it is not necessary to connect the upper or lower steel structure, the L-shaped plate 8 does not need to be placed on one side of the limiting plate 5. In this case, rotate the nut 7 to the surface of the first threaded rod 6. The upper and lower limiting plates 5 limit the movement of the four U-shaped inserts 2, preventing them from loosening and falling off. If it is necessary to connect the upper or lower steel structure, place the L-shaped plate 8 on one side of the limiting plate 5, and then fit the connecting plate 20 on the L-shaped plate 8 onto the surface of the first threaded rod 6. Then, rotate the nut 7 onto the surface of the first threaded rod 6. The nut 7 will limit the connecting plate 20, thereby limiting the L-shaped plate 8. Moving one side of the vertical steel structure into the two L-shaped plates 8 on the same side will cause the steel structure to move the T-shaped plate 21. The T-shaped plate 21 will then move the moving block 24, which in turn will move the second... Spring 25 is stretched, and one side of T-shaped plate 21 will fit against nut 7. Then, the third threaded rod 18 is taken out. One end of the third threaded rod 18 is threaded through the threaded hole on the adjacent L-shaped plate 8, and then through the threaded hole on the vertical steel structure. Finally, it is threaded through the threaded hole on the other side of L-shaped plate 8, thus initially limiting the vertical steel structure. Then, the fourth threaded rod 19 is rotated, which drives the clamping plate 22 to move. The clamping plate 22 will clamp the vertical steel structure, thus completing the connection and installation of the vertical steel structure. For the installation of the horizontal steel structure, first swing the U-shaped plate 4. The U-shaped plate 4 drives the U-shaped block 12 to swing. 2. The U-shaped plate 4 swings on the surface of the swing block 13. The U-shaped plate 4 moves the movable plate 11 through the movable block 17. The movable plate 11 stretches the first spring 15, placing one side of the transverse steel structure between the two U-shaped plates 4 on the same side. Then, the U-shaped plate 4 is restored to a horizontal state and brought close to the transverse steel structure. The slider 14 moves in the groove on the fixed plate 3. The U-shaped plate 4 will fit on the surface of the transverse steel structure. The second threaded rod 16 is threaded through the two movable plates 11 on the same side, thereby limiting the movable plate 11 and the U-shaped plate 4. Then, the bolt 10 is rotated to the surface of the transverse steel structure, thereby connecting and installing the transverse steel structure.

Claims

1. A connecting device for steel structure nodes, comprising a hollow frame (1), characterized in that: The hollow frame (1) has four slots on its outer edge. A fixed post (9) is fixedly connected to the center of the hollow frame (1). A U-shaped insert plate (2) is inserted through each slot. The U-shaped insert plate (2) is fitted onto the outer edge of the fixed post (9). The U-shaped insert plate (2) has four through holes. A fixed plate (3) is fixedly connected to the side of the U-shaped insert plate (2) away from the fixed post (9). Two sliding grooves are opened on the side of the fixed plate (3) away from the hollow frame (1). A slider (14) is movably connected in each sliding groove. A swing block (13) is fixedly connected to the side of the slider (14) away from the fixed plate (3). A U-shaped block (12) is hinged to the outer edge of the swing block (13). Two U-shaped plates (4) are provided on the side of the fixed plate (3) away from the hollow frame (1). The two adjacent U-shaped plates (4) are arranged vertically. One side of the U-shaped block (12) is fixedly connected to the outer edge of the U-shaped plate (4).

2. The connecting device for steel structure nodes according to claim 1, characterized in that: Each of the U-shaped plates (4) has four first threaded holes, and each of the first threaded holes is threaded with a bolt (10). Each of the outer edges of the U-shaped plates (4) has two movable grooves, and each of the movable grooves is movably connected with a movable block (17). Each of the movable blocks (17) is fixedly connected to a movable plate (11) on the side away from the U-shaped plate (4). Each of the movable plates (11) has a second threaded hole, and two of the second threaded holes on the same side are threaded together with a second threaded rod (16). Each of the outer edges of the second threaded rod (16) is fitted with a first spring (15). The first spring (15) is located between two adjacent movable plates (11). The top end of the first spring (15) is fixedly connected to the bottom of the upper movable plate (11), and the bottom end of the first spring (15) is fixedly connected to the top of the lower movable plate (11).

3. The connecting device for steel structure nodes according to claim 2, characterized in that: The hollow frame (1) has four connecting holes at the top and bottom. The hollow frame (1) has a limiting plate (5) attached to the top and bottom. The limiting plate (5) has two limiting holes. The side of the limiting plate (5) near the hollow frame (1) is fixedly connected to two first threaded rods (6). The end of the first threaded rod (6) away from the limiting plate (5) passes through the adjacent connecting hole, through hole and limiting hole.

4. A connecting device for steel structure nodes according to claim 3, characterized in that: Two L-shaped plates (8) are provided on the side of the limiting plate (5) away from the hollow frame (1). A connecting plate (20) is fixedly connected to the side of the inner cavity sidewall of the L-shaped plate (8) close to the limiting plate (5). A vertical hole is provided on the connecting plate (20). The vertical hole is sleeved on the outer edge of the adjacent first threaded rod (6). A nut (7) is provided on the side of the connecting plate (20) away from the limiting plate (5). The nut (7) is threadedly connected to the outer edge of the adjacent first threaded rod (6).

5. A connecting device for steel structure nodes according to claim 4, characterized in that: The inner wall of the L-shaped plate (8) has two moving slots, and a moving block (24) is movably connected in each of the moving slots. Two adjacent moving blocks (24) are fixedly connected to a T-shaped plate (21). A second spring (25) is fixedly connected to the top of each moving block (24). The top of the second spring (25) is fixedly connected to the top of the adjacent moving slot. A groove is provided on the side of the T-shaped plate (21) away from the moving block (24). A magnet (23) is fixedly connected in each of the grooves. Two adjacent magnets (23) are fitted together.

6. A connecting device for steel structure nodes according to claim 5, characterized in that: Four third threaded holes are provided on the outer edges of the two L-shaped plates (8) on the same side, and four third threaded rods (18) are provided between the two L-shaped plates (8) on the same side. The third threaded rod (18) is threaded through the adjacent third threaded hole at the end closest to the L-shaped plate (8).

7. A connecting device for steel structure nodes according to claim 6, characterized in that: The inner wall of the L-shaped plate (8) is provided with two clamping plates (22), and the L-shaped plate (8) is provided with four fourth threaded holes. Two fourth threaded rods (19) are inserted into the side of the clamping plate (22) near the side wall of the L-shaped plate (8). The end of the fourth threaded rod (19) away from the clamping plate (22) is threaded through the adjacent fourth threaded hole.