A segmented reinforcement cage connection structure
By introducing semi-circular connecting cylinders and vertical rods for welding and positioning in the rebar cage connection structure, and using connecting blocks, threaded rods, and tension hooks, the problems of small welding area and insufficient stability in the segmented connection structure of the rebar cage are solved, achieving an efficient and stable connection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG YUHONG CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-24
AI Technical Summary
The existing segmented connection structure of the steel cage has a small welding area, low connection strength, and lacks tensioning and fixing measures, which affects the overall stability and construction quality.
A segmented steel cage connection structure is designed, which uses a semi-circular connecting cylinder and a vertical rod for welding and positioning, combined with connecting blocks, threaded rods and tension hooks to achieve precise positioning and reinforcement of the joint.
It improves connection strength and construction efficiency, ensures the stability and precision of the steel cage, avoids misalignment and interference, and enhances construction quality.
Smart Images

Figure CN224549094U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel cage technology, specifically to a segmented steel cage connection structure. Background Technology
[0002] With the continuous urbanization process in my country, surface space is becoming increasingly scarce, leading to a rapid increase in the development and utilization of underground space. Consequently, the requirements for the safety and quality of underground foundation pit retaining structures are becoming increasingly stringent. The segmented connection of the reinforcing cage in diaphragm walls has always been a challenging problem for construction companies. If mechanical sleeve connections are used for segmented connections, the probability of substandard mechanical joints is very high, resulting in a low tolerance for construction errors and making the fabrication of the reinforcing cage time-consuming and labor-intensive. If lap splicing of the main reinforcing bars is used for welding connections, the precision required for bar cutting is very high, making it difficult to guarantee construction quality.
[0003] The utility model patent with authorization announcement number CN 208685663 U discloses a segmented connection structure for a diaphragm wall reinforcement cage, including longitudinal main bars of an upper diaphragm wall reinforcement cage, longitudinal main bars of a lower diaphragm wall reinforcement cage, a steel plate, double-sided fillet welds, and perimeter welds. The ends of the longitudinal main bars of the upper diaphragm wall reinforcement cage and the ends of the longitudinal main bars of the lower diaphragm wall reinforcement cage are connected by perimeter welds. Both the longitudinal main bars of the upper and lower diaphragm wall reinforcement cages are welded to the steel plate by double-sided fillet welds. This utility model can avoid the lap joint between the main bars of the upper and lower reinforcement cages, improve the accuracy of the reinforcement cutting, and eliminate the reinforcement threading process required for straight thread mechanical connection, thereby improving construction efficiency and ensuring connection quality.
[0004] In the aforementioned publicly available results, the steel cage was directly connected end to end and then welded and fixed. However, the lack of a semi-circular connecting cylinder for combined connection not only resulted in a small welding area and low connection strength, but also lacked threaded rods and tension hooks for connecting block installation. This prevented the transverse frame from being tightened and fixed, affecting the overall stability, and needs to be improved. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a segmented steel cage connection structure to solve the problems of small welding area and inability to tighten and reinforce existing connection structures.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a segmented rebar cage connection structure, comprising a horizontal frame, with vertical rods fixedly connected inside the horizontal frame, the horizontal frame and vertical rods combined to form a rebar cage, the ends of the vertical rods having a combination gap, a semi-circular connecting cylinder fixedly connected to one side of the outer surface of the vertical rod, welding strips fixedly connected to both sides of the inner surface of the semi-circular connecting cylinder, the welding strips being fixedly welded to one side of the outer surface of the vertical rod, a welding block fixedly connected to the middle position inside the semi-circular connecting cylinder, the welding block being fixedly filled inside the combination gap, the welding block being fixedly welded to the end position of the vertical rod, connecting blocks fixedly connected to both ends of the outer surface of the semi-circular connecting cylinder, a threaded rod being assembled at one end of the connecting block, a positioning nut being threaded at one end of the threaded rod, and a tension hook being fixedly connected to the other end of the threaded rod.
[0007] Preferably, the positioning nut is threaded onto the vertical end of the threaded rod and pressed against one side surface of the connecting block.
[0008] Preferably, the tension hook is fixedly attached to the outer surface of the horizontal frame and located on one side of the vertical rod.
[0009] Preferably, the semi-circular connecting cylinder is fixedly connected to the end positions of the two vertical rods and located between the two horizontal frames. The positioning nut and tension hook are installed by threaded rods, which can be installed separately and then the two horizontal frames are tightened after positioning. This facilitates welding reinforcement after auxiliary positioning, making it convenient to connect and use, and ensuring stability and efficiency.
[0010] Preferably, the transverse frames are connected at equal intervals to the outer surface of the vertical rod and are arranged along the length of the vertical rod.
[0011] Preferably, the vertical rods are fixedly connected to the inner side of the horizontal frame and are evenly distributed on the four sides of the horizontal frame.
[0012] Preferably, the semicircular connecting cylinders are aligned one-to-one with the outer surface of the vertical rod and welded together at the end of the vertical rod. By installing the semicircular connecting cylinders and the vertical rods in a one-to-one correspondence, the connection can be reinforced at multiple locations, ensuring safety and stability and improving construction strength.
[0013] Compared with the prior art, this utility model provides a segmented steel cage connection structure, which has the following beneficial effects: Through design, the steel cage connection structure uses semi-circular connecting cylinders and vertical rods for welding and positioning, which can fix the joint position, ensuring safety and stability. In addition, the threaded rods and tension hooks installed on the side through connecting blocks can assist in limiting the transverse frame, ensuring the accuracy and stability of the alignment connection and facilitating construction and reinforcement. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a partial structural diagram of the connection between the tension hook and the transverse frame in this utility model; Figure 4 This is a partial structural diagram of the semi-circular connecting cylinder connection in this utility model; Figure 5 This is a schematic diagram of the tension hook structure in this utility model.
[0015] In the diagram: 1. Horizontal frame, 11. Vertical rod, 12. Combined gap, 13. Semi-circular connecting cylinder, 14. Welding strip, 15. Welding block, 16. Connecting block, 17. Threaded rod, 18. Positioning nut, 19. Tensioning hook. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] This utility model provides a technical solution, a segmented steel cage connection structure, please refer to... Figure 1 , Figure 2 and Figure 3The system includes a horizontal frame 1, with vertical rods 11 fixedly connected inside. The horizontal frame 1 and vertical rods 11 combine to form a reinforcing cage, which can bind the reinforcing bars together. The cage can be made into multiple sections according to actual needs, and can be assembled and connected at the desired location before casting. This facilitates processing and construction. The ends of the vertical rods 11 have assembly gaps 12. A semi-circular connecting cylinder 13 is fixedly connected to one side of the outer surface of the vertical rod 11. Welding strips 14 are fixedly connected to both sides of the inner surface of the semi-circular connecting cylinder 13, and are welded to one side of the outer surface of the vertical rod 11. A welding block 15 is fixedly connected to the middle position inside the semi-circular connecting cylinder 13. The ends of the vertical rods 11 are aligned and positioned, and then the semi-circular connecting cylinder 13 is snapped in from the side for connection and positioning. Welding is then performed along the connection gaps to reinforce the structure. This forms the welding strips 14 in the vertical position, thus welding and fixing them to the surface of the vertical rod 11. A welding block 15 is also formed in the horizontal position. Block 15 can be welded and fixed at the end position for easy connection and reinforcement. Welded block 15 is fixedly filled inside the combined gap 12 and welded to the end position of the vertical rod 11. Connecting blocks 16 are fixedly connected to both ends of the outer surface of the semi-circular connecting cylinder 13. A threaded rod 17 is installed at one end of the connecting block 16. A positioning nut 18 is threaded at one end of the threaded rod 17. A tension hook 19 is fixedly connected to the other end of the threaded rod 17. When splicing and assembling the two steel cages, the semi-circular connecting cylinder 13 can be connected to the end position of the vertical rod 11, and then the threaded rod 17 can be connected to the end position of the connecting block 16. In this way, the tension hook 19 can be snapped onto the horizontal frame 1, and then the positioning nut 18 can be connected and locked. This way, the two horizontal frames 1 can be tightened and fixed first, avoiding misalignment of the end position of the vertical rod 11. The semi-circular connecting cylinder 13 can be positioned in advance, which is conducive to precise welding, avoids misalignment interference, facilitates combination and use, and has high adaptability.
[0018] Please see Figure 3 and Figure 4 The positioning nut 18 is threaded onto the vertical end of the threaded rod 17 and is pressed against one side surface of the connecting block 16. The tension hook 19 is fixedly snapped onto the outer surface of the transverse frame 1 and is located on one side of the vertical rod 11. The semi-circular connecting cylinder 13 is fixedly connected to the ends of the two vertical rods 11 and is located between the two transverse frames 1. By installing the positioning nut and tension hook through the threaded rod, the two transverse frames can be installed separately and then tightened after positioning. This facilitates welding reinforcement after positioning, making it convenient to connect and use, and ensuring stability and efficiency.
[0019] Please see Figure 1 , Figure 2 and Figure 3The horizontal frame 1 is connected to the outer surface of the vertical rod 11 at equal intervals and is arranged along the length of the vertical rod 11. The vertical rod 11 is fixedly connected to the inner side of the horizontal frame 1 and is distributed at equal intervals on the four sides of the horizontal frame 1. The semi-circular connecting cylinder 13 is aligned with the outer surface of the vertical rod 11 and welded to the end of the vertical rod 11. By installing the semi-circular connecting cylinder and the vertical rod one by one, the connection can be reinforced at multiple positions to ensure safety and stability and improve construction strength.
[0020] 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.
[0021] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A segmented steel cage connection structure, comprising a transverse frame (1), wherein vertical rods (11) are fixedly connected inside the transverse frame (1), and the transverse frame (1) and the vertical rods (11) are combined to form a steel cage, characterized in that: The vertical rod (11) has a combination gap (12) at its end. A semi-circular connecting cylinder (13) is fixedly connected to one side of the outer surface of the vertical rod (11). Welding strips (14) are fixedly connected to both sides of the interior of the semi-circular connecting cylinder (13). The welding strips (14) are fixedly welded to one side of the outer surface of the vertical rod (11). A welding block (15) is fixedly connected to the middle position inside the semi-circular connecting cylinder (13). The welding block (15) is fixedly filled inside the combination gap (12). The welding block (15) is fixedly welded to the end position of the vertical rod (11). Connecting blocks (16) are fixedly connected to both ends of the outer surface of the semi-circular connecting cylinder (13). A threaded rod (17) is assembled at one end of the connecting block (16). A positioning nut (18) is threaded at one end of the threaded rod (17). A tensioning hook (19) is fixedly connected to the other end of the threaded rod (17).
2. The segmented steel cage connection structure according to claim 1, characterized in that: The positioning nut (18) is threaded onto the vertical end of the threaded rod (17) and pressed against one side surface of the connecting block (16).
3. The segmented steel cage connection structure according to claim 1, characterized in that: The tension hook (19) is fixedly attached to the outer surface of the transverse frame (1) and located on one side of the vertical rod (11).
4. The segmented steel cage connection structure according to claim 1, characterized in that: The semi-circular connecting cylinder (13) is fixedly connected to the end positions of the two vertical rods (11) and located between the two horizontal frames (1).
5. The segmented steel cage connection structure according to claim 1, characterized in that: The transverse frame (1) is connected at equal intervals to the outer surface of the vertical rod (11) and is arranged along the length direction of the vertical rod (11).
6. The segmented steel cage connection structure according to claim 1, characterized in that: The vertical rods (11) are fixedly connected to the inner side of the horizontal frame (1) and are evenly distributed on the four sides of the horizontal frame (1).
7. A segmented steel cage connection structure according to claim 1, characterized in that: The semi-circular connecting cylinders (13) are aligned one-to-one with the outer surface of the vertical rod (11) and are welded together at the end of the vertical rod (11).